A flexible power load device

Abstract

The present invention provides an elastic power load device, which relates to the technical field of power devices. An elastic power load device includes a control unit, a shell and a cooling unit; the control unit includes a plurality of functional modules installed at the bottom of the shell, the cooling unit includes a water tank filled with water, the opening above the water tank is sealed with a cover made of elastic water-proof material, a high-thermal-conductivity slider is arranged between the cover and the shell, the slider slides in a fixed area between the cover and the shell through a driving device with a fixed driving force, and the projections of the plurality of functional modules of the control unit onto the cooling unit fall in the fixed area; a sawtooth structure is arranged in the water tank, the sawtooth structure includes alternatingly distributed protrusions and recesses, the protrusions of the sawtooth structure abut against the cover, and the recesses are provided with a thermosensitive hydrogel. The elastic power load device provided by the present invention can dissipate heat accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power devices, and in particular to an elastic electric power load device. Background Art

[0002] The power load device can collect power consumption data from the customer side in real time, such as power, voltage, current, power, etc., and transmit this data to the power load management system master station in a timely manner.

[0003] In the related art, power load devices are mainly cooled by air. However, due to the various working conditions, different functional modules of the control unit have different working peaks and different heat generation. When a functional module is working at its peak, its temperature rises too fast in a short period of time. It is difficult to quickly identify the location of the peak working module and quickly cool it down by air cooling.

[0004] Therefore, in order to solve the above problems, there is an urgent need for a flexible power load device that can accurately dissipate heat. Summary of the invention

[0005] The present invention provides a flexible power load device capable of accurately dissipating heat. The technical solution of the present invention is as follows:

[0006] An elastic power load device comprises a control unit, a housing and a cooling unit;

[0007] The control unit comprises a plurality of functional modules installed at the bottom of the housing, the cooling unit comprises a water tank filled with water, the water tank is located below the housing, an opening above the water tank is sealed with a cover made of elastic water-insulating material, a high-thermal-conductivity slider is arranged between the cover and the housing, the slider slides in a fixed area between the cover and the housing through a driving device with a fixed driving force, and projections of the plurality of functional modules of the control unit onto the cooling unit fall in the fixed area;

[0008] A sawtooth structure is arranged in the water tank, and the sawtooth structure includes convex parts and concave parts which are distributed alternately. The convex parts of the sawtooth structure abut against the cover, and the thermosensitive hydrogel is placed in the concave parts.

[0009] Optionally, glue is applied to the tip of the protrusion so that the cover and the protrusion cooperate with each other to seal the temperature-sensitive hydrogel in each recessed portion in an independent space of the recessed portion.

[0010] Optionally, the driving device includes a plurality of motors in different orientations, each of the motors is wound with a pulling rope, and the slider is driven to slide by the motor and the pulling rope.

[0011] Optionally, the bottom surface of the slider is provided with a wave structure matching the recessed portion.

[0012] Optionally, the planar size of the slider is 1 / 3 to 2 / 3 of the minimum planar size of the functional module, and the slider moves at a speed of 0.5 to 1 cm / s.

[0013] Optionally, at least two sliders with different sliding paths are provided to increase heat dissipation efficiency, wherein the sliding path of at least one slider is located at the bottom of the functional module with information collection function, and the sliding path of at least one slider is located at the bottom of the functional module with information transmission function.

[0014] Optionally, the protrusion is a conical protrusion, and the concave portion is a conical concave portion.

[0015] Optionally, the recessed portion is a cylindrical recessed portion.

[0016] Optionally, the sawtooth structure is only provided at the bottom of the functional module.

[0017] Optionally, the sealing cover is made of heat-conducting rubber.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The slider is driven to slide in a fixed area by a driving device. When a functional module is running at high power and its temperature is higher than the phase change temperature of the thermosensitive hydrogel, the heat of the functional module is quickly transferred to the thermosensitive hydrogel with high temperature sensitivity through the slider and the cover, thereby causing the thermosensitive hydrogel to undergo phase change, deswell and shrink, and be unable to fill the recessed portion. In addition, the cover is made of elastic water-insulating material, which causes the cover to deform, thereby increasing the friction coefficient between the slider and the cover, resulting in the driving device with a fixed driving force being unable to continue to drive the slider to slide under the hindrance of friction, thereby achieving precise heat dissipation of the high-power functional module. When the power of the high-temperature functional module decreases or the heat is quickly reduced to below the phase change temperature of the thermosensitive hydrogel through the slider, the thermosensitive hydrogel absorbs water and swells, filling the recessed portion, thereby reducing the friction coefficient between the slider and the cover, and the fixed driving force of the driving device is sufficient to drive the slider to slide again. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of a thermosensitive hydrogel swelled according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of a thermosensitive hydrogel provided by an embodiment of the present invention when deswelling;

[0023] Figure 3 is a structural schematic diagram of an elastic power load device provided by an embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of an exhaust duct provided in an embodiment of the present invention.

[0025] In the figure:

[0026] 1- Control unit;

[0027] 2- Shell;

[0028] 3- Slider;

[0029] 31-motor;

[0030] 4-sink;

[0031] 41-capping;

[0032] 42-Sawtooth structure;

[0033] 43-Thermosensitive hydrogel;

[0034] 5- Gas chamber;

[0035] 6- Gas pipeline;

[0036] 7- Exhaust duct;

[0037] 8-First straight pipe;

[0038] 9- second straight pipe;

[0039] 10-Curve pipe. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a flexible power load device, including a control unit 1, a housing 2 and a cooling unit;

[0042] The control unit 1 includes a plurality of functional modules installed at the bottom of the housing 2. The cooling unit includes a water tank 4 filled with water. The water tank 4 is located below the housing 2. The opening above the water tank 4 is sealed with a cover 41 made of elastic water-proof material. A high-thermal-conductivity slider 3 is provided between the cover 41 and the housing 2. The slider 3 slides in a fixed area between the cover 41 and the housing 2 through a driving device with a fixed driving force. The projections of the plurality of functional modules of the control unit 1 onto the cooling unit fall in the fixed area.

[0043] A sawtooth structure 42 is provided in the water tank 4. The sawtooth structure 42 includes convex parts and concave parts that are alternately distributed. The convex parts of the sawtooth structure 42 abut against the cover 41, and the thermosensitive hydrogel 43 is placed in the concave parts.

[0044] When the sawtooth structure 42 is provided in the water tank 4 , the sawtooth structure 42 can be bonded to the inner wall of the water tank 4 around with adhesive, or a connecting column can be installed at the bottom of the sawtooth structure 42 to connect the connecting column to the bottom surface of the water tank 4 .

[0045] In this embodiment, the slider 3 is driven by the driving device to slide in a fixed area. When a certain functional module is running at high power and its temperature is higher than the phase change temperature of the thermosensitive hydrogel 43, the heat of the functional module is quickly transferred to the thermosensitive hydrogel 43 with high temperature sensitivity through the slider 3 and the cover 41, thereby causing the thermosensitive hydrogel 43 to phase change, deswell and shrink, and unable to fill the recessed part. In addition, the cover 41 is made of elastic water-proof material, which causes the cover 41 to deform, thereby increasing the friction coefficient between the slider 3 and the cover 41, resulting in the driving device with a fixed driving force being unable to continue to drive the slider 3 to slide under the hindrance of friction, thereby achieving precise heat dissipation of the high-power functional module through the slider 3 and the water in the water tank 4. When the power of the high-temperature functional module decreases or the heat is quickly reduced to below the phase change temperature of the thermosensitive hydrogel 43 through the slider 3, the thermosensitive hydrogel 43 absorbs water and swells, filling the recessed part, reducing the friction coefficient between the slider 3 and the cover 41, and the fixed driving force of the driving device is sufficient to drive the slider 3 to slide again.

[0046] It should be noted that the fixed driving force of the driving device can be determined by the gravity of the control unit 1 and the friction coefficient between the cover 41 and the slider 3 under different conditions, so that the driving device can pull the slider 3 when the thermosensitive hydrogel 43 swells, and cannot pull the slider 3 when it deswells.

[0047] It should also be noted that the phase change temperature of the thermosensitive hydrogel 43 can be adjusted according to its composition and preparation process. In the embodiment of the present invention, the thermosensitive hydrogel 43 can select a thermosensitive hydrogel 43 with a suitable phase change temperature according to the optimal operating temperature of the functional module in the control unit 1.

[0048] If the slider 3 is not provided and the water tank 4 is directly attached to the bottom of the shell 2, the heat at the bottom of the shell 2 will be quickly introduced into the water. At this time, if the volume of the water tank 4 is small, the water in the water tank 4 will quickly heat up. If the temperature is too high, the cooling rate will slow down and the cooling effect will be poor. When the slider 3 is provided, only the functional modules with high temperatures can be cooled by water cooling, which can not only quickly cool down the high-temperature position, but also ensure that the temperature of the water in the shell 2 is not too high to affect the subsequent cooling effect, and also achieve precise heat dissipation.

[0049] It should be noted that the control unit 1 itself will dissipate heat upwards through air cooling. If the heat generated is sufficient to be dissipated through air cooling, there is no need to perform water cooling through the slider 3 and the water tank 4. Of course, air cooling plus water cooling of the slider 3 and the water tank 4 can quickly solve the heat dissipation problem of the overheated heating part.

[0050] It is understandable that in order to avoid excessive friction on the slider 3 due to excessive mass of the shell 2, an elastic support can be provided at the bottom of the shell 2 to adjust its positive pressure. In order to facilitate water absorption and drainage of the thermosensitive hydrogel 43, a plurality of water-permeable holes are provided on the sawtooth structure 42 to facilitate water inflow and outflow of the recessed portion.

[0051] In some embodiments of the present invention, glue is coated on the tip of the protrusion so that the cover 41 and the protrusion cooperate with each other to seal the temperature-sensitive hydrogel 43 in each recessed portion in an independent space of the recessed portion.

[0052] In order to allow the surface of the cover 41 to be fully supported when the thermosensitive hydrogel 43 swells, the shape of the thermosensitive hydrogel 43 is first processed according to the shape of the recessed portion so that it can just fill the recessed portion, and then the cover 41 is used to seal it; in order to prevent the thermosensitive hydrogel 43 from leaking from the recessed portion, glue is coated on the tip of the raised portion so that the cover 41 and the raised portion cooperate to enclose the thermosensitive hydrogel 43 in each recessed portion in the independent space of the recessed portion.

[0053] In some embodiments of the present invention, the driving device includes a plurality of motors 31 in different directions, each motor 31 is wound with a pull rope, and the motor 31 and the pull rope are used to drive the slider 3 to slide. The motor 31 is convenient for controlling its torque output and speed output.

[0054] In some embodiments of the present invention, a wave structure matching the concave portion is provided on the bottom surface of the slider 3. The wave structure has a smooth curve and cannot be too sharp. The elasticity of the cover 41 should be strong. The cooperation of the wave structure and the sawtooth structure 42 can facilitate locking the slider 3 when the thermosensitive hydrogel 43 deswells. In addition, the smooth wave structure facilitates the sliding of the slider 3 when the thermosensitive hydrogel 43 swells, which can reduce the driving force required for its sliding.

[0055] It should be noted that the depth of the wave structure should be very shallow. If it is too deep, after the wave structure and the sawtooth structure 42 are locked, it will be difficult to slide the slider 3 even if the thermosensitive hydrogel 43 fills the recessed part.

[0056] In some embodiments of the present invention, the plane size (vertical projection size) of the slider 3 is 1 / 3 to 2 / 3 of the plane size of the smallest functional module, and the speed of the slider 3 during movement is 0.5 to 1 cm / s. The slider 3 is smaller than the functional module and moves at a slower speed, so that the thermosensitive hydrogel 43 has enough time to heat up.

[0057] In some embodiments of the present invention, at least two sliders 3 with different sliding paths are provided to increase the heat dissipation efficiency, wherein the sliding path of at least one slider 3 is located at the bottom of a functional module with an information collection function, and the sliding path of at least one slider 3 is located at the bottom of a functional module with an information transmission function, so as to quickly realize the heat dissipation of the functional module with the information collection function and the functional module with the information transmission function.

[0058] In some embodiments of the present invention, the protrusion is a conical protrusion, and the concave portion is a conical concave portion.

[0059] In some embodiments of the present invention, the recessed portion is a cylindrical recessed portion.

[0060] In some embodiments of the present invention, the sawtooth structure 42 is only provided at the bottom of the functional module.

[0061] In some embodiments of the present invention, the cover 41 is made of thermally conductive rubber. The thermally conductive rubber has appropriate elasticity and excellent thermal conductivity. To facilitate the sliding of the slider 3, the surface of the thermally conductive rubber can be modified to reduce its friction coefficient, for example, by coating and adjusting the raw material composition.

[0062] Please refer to Figure 3 In some embodiments of the present invention, at least one gas bin 5 is arranged around the shell 2, and the gas bin 5 is connected to the shell 2 through a gas pipeline 6. At least one set of exhaust pipes 7 is installed on the top of the shell 2. The cooling gas in the gas bin 5 enters the shell 2 through the gas pipeline 6 to cool the control unit 1. The gas above the control unit 1 is heated and expands and rises, and is discharged through the exhaust pipe 7 on the top of the shell 2 to achieve cyclic cooling.

[0063] Specifically, the control unit 1 is installed on the bottom plate of the shell 2, and the bottom plate of the shell 2 is connected to the water tank 4 through the slider 3, so that the water in the water tank 4 can efficiently take away the heat of the control unit 1. At the same time, at least one air bin 5 is arranged around the shell 2, and the cooling gas in the air bin 5 enters the shell 2 through the gas pipeline 6 to cool the upper surface of the control unit 1. The cooling of the upper and lower surfaces in multiple ways improves the heat dissipation efficiency of the control unit 1. The air bin 5 is arranged around the shell 2, and the cooling gas enters the shell 2 from all sides. The gas above the control unit 1 in the shell 2 is heated and rises to the top of the shell 2. The top of the control unit 1 is low pressure, and the cooling gas output by the air bin 5 around the four sides is quickly transported to the top of the control unit 1 under the pressure difference to achieve precise cooling. The hot gas rising to the top of the shell 2 can be discharged through the exhaust pipe 7. In the whole process, no large amount of air containing dust from the outside enters, and the dustproof effect is achieved.

[0064] Please refer to Figure 4 In some embodiments of the present invention, the exhaust duct 7 includes a folded line pipe and a curved line pipe 10, the folded line pipe includes a first straight pipe 8 and a second straight pipe 9 which are interconnected and have intersecting axes, the first straight pipe 8 is connected to the shell 2, one end of the curved line pipe 10 is connected to the middle part of the second straight pipe 9, and the other end is connected to the connecting part of the first straight pipe 8 and the second straight pipe 9, and both ports of the curved line pipe 10 are facing away from the shell 2.

[0065] In this embodiment, when the gas is discharged from the inside of the shell 2, it first enters the first straight pipe 8. When it reaches the connection between the first straight pipe 8 and the second straight pipe 9, since both ports of the curved pipe 10 are facing away from the airflow direction, the airflow will not enter the curved pipe 10, and almost all of it will enter the second straight pipe 9 and finally be discharged. It is difficult for the external air with dust to enter the shell 2 through the exhaust duct 7. The reason is that when the external air wants to enter the inside of the shell 2 through the second straight pipe 9, when the air reaches the middle of the second straight pipe 9, a part of the airflow will be diverted to enter the curved pipe 10, and the airflow in the second straight pipe 9 and the airflow in the curved pipe 10 will converge at the connection between the first straight pipe 8 and the second straight pipe 9. However, the airflow in the second straight pipe 9 and the airflow in the curved pipe 10 are relatively conflicting, preventing the airflow from flowing further and preventing the external gas from continuing to flow into the inside. Therefore, unless the external pressure is much higher than the extreme case inside the shell 2, it is difficult for the external airflow to enter the inside of the shell 2 in large quantities.

[0066] In some embodiments of the present invention, multiple groups of exhaust pipes 7 are installed on the top of the shell 2, and the first straight pipes 8 in the multiple groups of exhaust pipes 7 are distributed in a circle around the center of the top surface of the shell 2, and multiple first straight pipes 8 are inclined from bottom to top around the shell 2.

[0067] After the hot air flow in the middle of the shell 2 rises to the top and accumulates, it flows along the top surface to the surroundings. After the sinking airflow of the surrounding air bins 5 enters the shell 2, it descends and flows to the low pressure area of ​​the middle control unit 1, thereby forming a gas flow, that is, the airflow at the control unit 1 rises to the top and diffuses to the surroundings. After the low-temperature airflow of the surrounding air bins 5 enters the shell 2, it sinks and flows to the control unit 1. At this time, the hot air flow at the top of the shell 2 flows from the middle to the surroundings, and the multiple first straight pipes 8 are inclined from bottom to top to the surroundings of the shell 2, so that the angle between the first straight pipes 8 and the airflow is small, which is convenient for quickly discharging the hot air.

[0068] It should be noted that, in order to facilitate the formation of the gas flow, the size of the shell 2 is 1.5 to 2 times the maximum range of the control unit 1, and the length-to-height ratio of the shell 2 is 4:2 to 3.

[0069] In some embodiments of the present invention, the gas warehouse 5 is filled with high-pressure cooling gas, the gas pipeline 6 is installed with an electromagnetic throttle valve, and a temperature sensor is installed in the shell 2. The electromagnetic throttle valve adjusts the gas flow output from the gas pipeline 6 according to the temperature collected by the temperature sensor.

[0070] In this embodiment, the flow rate of cooling gas output from the gas chamber 5 can be controlled according to the temperature. The higher the temperature, the greater the flow rate.

[0071] It should be noted that the embodiments of the present invention do not elaborate on the specific circuit composition of an elastic power load device, how the control unit and its functional modules collect data, and how the elastic power load device cooperates with the power load management system master station to realize its functions. Please refer to the existing related structures. The embodiments of the present invention only specifically describe the heat dissipation structure of the elastic power load device.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexible power load device, characterized in that: It comprises a control unit (1), a housing (2) and a cooling unit; The control unit (1) comprises a plurality of functional modules installed at the bottom of a shell (2); the cooling unit comprises a water tank (4) filled with water, the water tank (4) being located below the shell (2); an opening above the water tank (4) being sealed with a cover (41) made of an elastic water-insulating material; a high-thermal-conductivity slider (3) being arranged between the cover (41) and the shell (2); the slider (3) sliding in a fixed area between the cover (41) and the shell (2) via a driving device having a fixed driving force; and projections of the plurality of functional modules of the control unit (1) onto the cooling unit fall within the fixed area; A sawtooth structure (42) is provided in the water tank (4), the sawtooth structure (42) comprising raised portions and recessed portions that are alternately distributed, the raised portions of the sawtooth structure (42) abutting against the cover (41), and the thermosensitive hydrogel (43) being placed in the recessed portions.

2. The elastic power load device according to claim 1, characterized in that: Glue is applied to the tip of the protrusion so that the cover (41) and the protrusion cooperate with each other, thereby enclosing the temperature-sensitive hydrogel (43) in each recessed portion in an independent space of the recessed portion.

3. The elastic power load device according to claim 1, characterized in that: The driving device comprises a plurality of motors (31) in different orientations, each of the motors (31) being wound with a pulling rope, and the sliding block (3) is driven to slide via the motors (31) and the pulling rope.

4. The elastic power load device according to claim 1, characterized in that: The bottom surface of the sliding block (3) is provided with a wave structure matching the recessed portion.

5. The elastic power load device according to claim 1, characterized in that: The planar size of the slider (3) is 1 / 3 to 2 / 3 of the planar size of the smallest functional module, and the speed of the slider (3) when moving is 0.5 to 1 cm / s.

6. The elastic power load device according to claim 1, characterized in that: The sliders (3) are provided with at least two different sliding paths to increase heat dissipation efficiency, wherein the sliding path of at least one of the sliders (3) is located at the bottom of the functional module having an information collection function, and the sliding path of at least one of the sliders (3) is located at the bottom of the functional module having an information transmission function.

7. The elastic power load device according to claim 1, characterized in that: The protrusion is a conical protrusion, and the concave portion is a conical concave portion.

8. The elastic power load device according to claim 1, characterized in that: The recessed portion is a columnar recessed portion.

9. The elastic power load device according to claim 1, characterized in that: The sawtooth structure (42) is only provided at the bottom of the functional module.

10. The elastic power load device according to claim 1, characterized in that: The material of the sealing cover (41) is heat-conducting rubber.

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