• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The invention relates to a device RV sensing of the ice situation around / above a current imaging device and for connecting this current imaging device if, but only if, icing is noted to be present, based on the sensing. In this way, the invention prevents a considerable amount of energy in unnecessary agar for unauthorized operation of the current generator device. (Fig. 1)
    公开号:SE1350327A1
    申请号:SE1350327
    申请日:2013-03-18
    公开日:2014-09-19
    发明作者:Lars Friberg
    申请人:Lars Friberg Evolution Ab；
    IPC主号:
    专利说明:

    ICE FORMATION DETECTOR This invention relates to a device, also called an ice formation detector, for sensing the ice situation around / above a so-called de-icer, also called a current generator, and for darpa based connection of this current generator if, but only if, ice formation exists. in this way, the invention prevents a considerable amount of energy in onOdan agar for unjustified operation of the current generator.
    Background of the Invention A current generator is an equipment used to keep bodies of water ice-free in whole or in parts thereof. The equipment causes hot groundwater to flow up to the surface where any existing ice is thus brought to melt. Several different configurations of current generators are available, such as air immersion and bottom-mounted propellers.
    Most current generators are powered by electricity and all consume a non-negligible amount of energy for their operation.
    Thermostat-controlled generators consume less energy than those that run continuously. However, even thermostatically controlled current generators will, for safety's sake, need to be switched on to a considerable extent even if no harmful ice formation is present. If the current generator can be brought into operation if, but only if, real ice formation is present, there is thus a real energy saving potential to be realized.
    Summary of the invention.
    The present invention relates to an ice formation detector of the type mentioned at the outset which continuously senses the ice situation and then switches on the current generator. as soon as unwanted icing is present, as well as can of the ice situation and turn off the current generator as soon as icing is no longer present.
    The device according to the invention is intended to enable an energy-saving current generator operation in such a way that the invention knows of the icing situation within the working area of the current generator and based on the impact of the respective equipment 2 in step with real need. In this way, the invention saves a considerable amount of energy which would otherwise be required for unauthorized operation of the current generator.
    The current imaging equipment itself or its design is not included in the invention.
    According to the invention, a body is provided which is completely or partially immersed in a, as far as icing is concerned, characteristic part of the affected volume of water. All or parts of this body are brought with the aid of an electric motor or similar device into a movement, in relation to the surrounding water volume, so designed that any ice formation is not significantly affected by the movement. Furthermore, a member is provided which senses the mechanical resistance to the movement of the body vis-à-vis the water. A means is also provided which strikes the current generator as soon as the mechanical resistance as above exceeds the preset value, for example due to the body freezing in newly formed ice. At the same time, the body's drive is temporarily beaten ay. As soon as the mechanical resistance to the body's motion has dropped below the preset value, the current generator is switched on again by the respective body's drive again.
    A number of different design variants are accommodated within the scope of the invention.
    The body itself can be designed virtually arbitrarily. It can be rudder-shaped, cylindrical, fax-like, prismatic, irregular, etc.
    The body must, at least in part, be on / in the water surface. It can be free-floating in the water and dd. fixed on some salt to the position where icing is to be detected, probably then by anchoring at the bottom. It can also be connected to the beach or to a fixed device.
    The movement of the body can be a rotation, a translation or any conceivable combination of these two movements.
    Detection of possible mechanical resistance (signs of icing) can take place in a number of different ways, most easily either by feeding counterforce or counter-torque somewhere in the mechanism that drives the body's movement or also by feeding the power consumed in the drive system to the body. 3 As long as the body's movement does not to any appreciable extent affect any icing process, it must be completely arbitrary. However, some of the following movement patterns should dominate: Steady and very slow movement that is prevented when ice formation exists. Long periods of stagnation, when ice can form, are replaced by short periods of movement, which in this case need not be slow, as any ice formed may detected.
    In the event that the body is free-floating in the water and with all movable parts enclosed within the shell, due to the lack of connection with a fixed point, probably only a movement pattern according to sub-point b. Above will be considered. This motion pattern can be detected, for example, by the body's shell having a small mass / small moment of inertia and being variable in relation to the body's inner mate which has a large mass / large moment of inertia. When the inner food is caused to suddenly move in relation to the shell, most of this movement will change into a movement of the shell in relation to the inner part of the body as to the surrounding water / ice. This relative internal movement within the body can then be detected and initiate a conditional switching on / off of the current imaging equipment.
    Communication with the current generator or its drive system can be wired or wireless.
    The body's movement / detection mechanism can be internally driven (for example via the built-in bat) or connected to an external energy source.
    Two possible and obvious embodiments of the invention are described in the following in connection with the accompanying drawings.
    Brief Description of the Drawings Fig. 1 shows a simple embodiment of the device in the form of an open water-bearing slow-rotating body connected via a drive shaft to a land-connected drive and detection device; Fig. 2 shows an example of drive and detection device; and Fig. 3 shows an alternative embodiment of the invention.
    Detailed description of the invention The invention relates to a device in de-icing systems, for detecting ice formation in water. It comprises a body 11; 31, 32 intended to be completely or partially immersed in the water in which ice formation is to be detected; a motor 12 coupled to the body via a shaft 13; 31, Mr transferring a movement to the body 11; 31, 32; a switch means 18 which is designed and arranged to respond to an increased resistance to movement of the body 11; 31, 32 due to icing, when the engine drives the shaft, be able to activate the de-icing system.
    The body can be free-floating in the water and has a sheath in which all moving parts are enclosed, where the body sheath has small mass / small moment of inertia and is variable in relation to the body's inner mate which has large mass / large moment of inertia. The body may further comprise a movable shaft arranged inside a fixedly arranged housing, preferably in the form of a tube which is fixedly mounted there. The tubular sheath may be provided with sheath 34 in the distal portion of the sheath. The motor 12 is preferably a spring suspension 15 so that in the event of increased resistance to rotation due to icing, other angular values can be obtained, and connected to the switch means 18 so that a change in the motor value causes the switch from one bearing to another bearing. The motor is arranged to impart to the body a rotational motion by driving the shaft in a rotational motion, or a translational motion by driving the shaft in a reciprocating motion.
    The invention also relates to a method for detecting icing in water and activating or deactivating a de-icing system, comprising immersing a movable body connected to a drive motor via a shaft in water; that the body is given movement by means of the drive motor; that an increased resistance to motion due to icing is detected; that a switch means in response to the increased resistance switches on the de-icing system; and that the switching means with reduced resistance to movement due to the ice formation stopping disconnects the de-icing system.
    The operation of the device shown in Fig. 1 will now be described with respect to an embodiment of the invention.
    An ice detector 10 in one embodiment comprises a body 11 which is arranged to move slowly and, if necessary, freezes in any ice, which is detected and initiates that a current converter DI is started. The body 11 must to a flake part always be in the water surface where ice formation is to be detected. It must also be designed in such a way that its movement pattern can take place unhindered as long as the water is not frozen, and must be safely prevented when the water freezes. Otherwise, there are no restrictions on the design of the body 11.
    Examples of the shape of the body can be cylindrical, spherical, cone-shaped, etc., the important thing is that it should be able to rotate slowly in the water so that immediately when ice is formed at its surface, it should be prevented in its rotation and the resistance generated by icing should be continued. to the motor suspension or torsion shaft so that a switch is activated (described below).
    A slowly rotating motor 12, preferably an electric motor but of course in principle any drive can be used, drives the body in a rotational motion via a shaft 13. An appropriate speed is from 0.1 rpm to 5 rpm. The electric motor is "land-mounted" by means of a fixed 14 and in one embodiment a spring suspension 15 (see Fig. 2) so that it rotates a number of degrees when mechanically resisting the body's movement of such a size as to indicate ice formation. The rotation of the electric motor to a new angle then affects an electrical switch 16 which partly closes the current to the current generator DI, and partly cuts off the current to the electric motor 12. At the same time, the current to any signal or indicator lamps can be stopped or switched on. As soon as the mechanical resistance has decreased, for example due to that formed ice has been eliminated, the electric motor 12 is returned by the spring force in the suspension 14 to its original height and thus the electrical switch 15 is returned to its original position, whereby the current-forming current is interrupted, the electric motor current is switched off and any signal / indicator lights switch on.
    Fig. 2 shows the device according to Fig. 1 seen in the axial direction. 6 The electric motor 12 is suspended in two springs 15 attached partly on opposite sides of the motor and partly in the engine housing 17. As soon as ice begins to form, the resistance to rotation of the drive shaft will increase and thus the motor position will also change, switching 18 being affected so that the current generator DI is connected pa. Due to the ice formation, the motor remains in the newly formed layer until the ice melts, whereby the springs 15 return the motor to its "nominal" position, and the switch 18 is then actuated so that the current generator DI is switched off and the electric motor 12 is switched on again.
    A myriad of different spring designs can be refueled to bring the engine back to its nominal position as soon as the body's movement is not hindered by ice. For example, a torsion shaft or a central coil spring aligned with the axis of rotation of the motor can be used in the stable of the tension springs of the figure. Likewise, the springs can be replaced by an eccentric suspension of the engine in a way so that the engine's own weight strains to return it to its original position.
    In an alternative embodiment, instead of a rotational motion, a translational motion is transmitted to the body 11 by imparting a reciprocating motion to the shaft 13.
    Now, a description of the operation of an alternative embodiment shown in Fig. 3 will be given.
    The construction in this case is similar to that of Fig. 1, but in this embodiment of the device, generally denoted by 30, the body immersed in the water is constituted by a shaft 31 enclosed in a housing 32, which is fixedly mounted and thus movable. When ice is formed around the housing 32, therefore, ice will also be formed between the housing 32 and the shaft 31, whereby mechanical resistance arises between the housing and the shaft.
    The rotating body may thus be constituted by a piece of hose, pipe or cylinder, 31, rotating inside a protective housing 32 which is fixedly connected to the suspension bracket 14 of the electric motor 12. The lower parts of housing 32 and body 31 are under water and they pass the water surface in a place where icing is desired to be detected. The cover 32 is open at the bottom 33 and can also be provided with a number of slides 34, arranged along the cover in the distal part, i.e. the part 7 which in operation will be immersed in the water, and which allows water to be unhindered. rise in the same and freeze to ice when icing is present.
    Drive, suspension of the motor, switch function dr identical to that described in connection with Figs. 1 and 2 and not repeated hdr. Of course, in this embodiment a translational movement of the body 31, 32 can be used.
    The course of action that arises during ice formation is similar to that described for Fig. 1 above. The detection can take place according to the chosen design in a variety of different ways, not only by the mechanical action of a switch described above but also for example by torque maneuvering, by feeding the spring force caused by the mechanical resistance or by maneuvering the power consumption of the drive.
    The embodiments described above are exemplary only and the scope of the invention is limited only by the appended claims. 8
    权利要求:
    Claims (10)
    [1]
    A device for de-icing systems, for detecting icing in water, comprising a body (11; 31, 32) intended to be completely or partially submerged in the water where icing is to be detected; a motor (12) coupled to the body via a shaft (13; 31), for transmitting a motion to the body (11; 31, 32); a switch means (18) which is designed and arranged to be able to activate the de-icing system in response to an increased resistance to movement of the body (11; 31, 32) due to icing, when the motor drives the shaft.
    [2]
    Device according to claim 1, wherein the body is free-floating in the water and has a housing in which all movable parts are enclosed, wherein the body of the body has a small mass / small moment of inertia and is variable in relation to the inner part of the body which has a large mass / large moment of inertia.
    [3]
    Device according to claim 1, wherein the body (31, 32) comprises a movable shaft arranged inside a fixedly arranged housing, preferably in the form of a pipe which is fixedly mounted.
    [4]
    A device according to claim 3, wherein the tubular housing is provided with a hollow (34) in the distal part of the housing.
    [5]
    Device according to any one of the preceding claims, wherein the motor (12) is suspended (15) so that in the event of increased resistance to rotation due to icing it can have different angular layers, and connected to the switch means (18) so that a change of the motor bearing brings the switch from one layer to another layer.
    [6]
    Device according to any one of the preceding claims, wherein the motor is arranged to impart a rotational movement to the body by driving the shaft in a rotational movement.
    [7]
    Device according to any one of the preceding claims, wherein the motor is arranged to impart a translational movement to the body by driving the shaft in a reciprocating motion. 9
    [8]
    A method of detecting icing in water and activating or deactivating a de-icing system, comprising immersing a movable body coupled to a drive motor via a shaft in water; that the body is given movement by means of the drive motor; that an increased resistance to motion due to icing is detected; that a switch means in response to the increased resistance switches on the de-icing system; and that the switching means, with reduced resistance to movement due to the ice formation stopping, disconnects from the de-icing system.
    [9]
    A method according to claim 8, wherein the movement imparted to the body is a rotational movement or a translational movement, preferably a rotational movement.
    [10]
    Method according to claim 8 or 9, wherein the response to the increased resistance to movement takes place by providing torque supply, by supplying the spring force caused by the mechanical resistance or by supplying the power consumption of the drive device. 14 12 Electrical energy cold and rela / ''-■...,-- "13/11 / DI
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    同族专利:
    公开号 | 公开日
    SE537585C2|2015-06-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350327A|SE537585C2|2013-03-18|2013-03-18|icing detector|SE1350327A| SE537585C2|2013-03-18|2013-03-18|icing detector|
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