A device for detecting the heat dissipation performance of a capacitor housing

Abstract

The present invention discloses a detection device for the heat dissipation performance of a capacitor housing, which relates to the technical field of detection devices and includes a box body. A sleeve is provided on the inner top surface of a constant temperature box. An active column is elastically provided in the sleeve. An installation plate is provided at the bottom of the active column, and a temperature sensor is provided at the bottom of the installation plate; a gear and a driving member are provided on the outer wall of a connecting shaft; a box cover is provided on the top surface of a connecting plate and a first connecting frame is provided on the bottom surface, and a heating component is provided on the box cover; an electric push rod is provided on a support plate, and a driving mechanism is provided at the movable end of the electric push rod; by using the driving mechanism, the temperature of the capacitor housing before heating is measured to obtain a detection standard, achieving the effect of self-comparison; finally, the heater is powered on to work, simulating the heat generated during the normal operation of the capacitor, and then the temperature of the current capacitor housing surface is detected. The heat dissipation performance of the capacitor housing is obtained by comparing the temperature of the capacitor housing before heating.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and particularly to a detection device for the heat dissipation performance of a capacitor housing. Background Art

[0002] The capacitor housing is an external shell that protects the internal structure of the capacitor, and its role is crucial. Since the electrical components inside the capacitor generate heat during operation, if the heat dissipation performance of the housing is poor, it will cause the internal temperature of the capacitor to rise sharply, thereby triggering a series of problems; excessive temperature will accelerate the drying of the electrolyte inside the capacitor, reduce its capacitance, and shorten the service life of the capacitor; it may also increase the equivalent series resistance of the capacitor, resulting in increased energy loss, and even cause capacitor failure, seriously affecting the normal operation of electronic devices; therefore, when processing the capacitor housing, it is necessary to detect the heat dissipation performance of the capacitor housing;

[0003] However, there are currently two methods for detecting the heat dissipation performance of the capacitor housing. One is manual detection. This method relies on manual experience or simple temperature measurement tools and cannot accurately simulate the heat generation situation of the capacitor during actual operation, resulting in a large deviation between the detection result and the actual application scenario and making it difficult to accurately evaluate the heat dissipation performance of the capacitor housing; the other method is to use a detection device for detection. However, the existing detection device has a complex structure and cumbersome operation, which not only increases the detection cost and time but also requires high professional skills for the detection personnel, making it not conducive to large-scale popularization and application. Summary of the Invention

[0004] The present invention provides a detection device for the heat dissipation performance of a capacitor housing to solve the problems in the background art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A detection device for the heat dissipation performance of a capacitor housing, including a box body and a pressure sensor provided on the inner wall of the box body, further including:

[0007] A constant temperature box: The constant temperature box is installed on the top surface of the box body. A sleeve is provided on the inner top surface of the constant temperature box. An active column is elastically provided in the sleeve. An installation plate is provided at the bottom of the active column. A temperature sensor is provided at the bottom of the installation plate;

[0008] A connecting shaft: The connecting shaft is rotatably provided in the box body. A gear is provided on the outer wall of the connecting shaft and a driving member for driving the active column is provided;

[0009] Rectangular opening: The rectangular opening is provided on the top surface of the box body. A connecting plate is slidably arranged in the rectangular opening. A box cover matching the constant temperature box is provided on the top surface of the connecting plate, and a connecting frame one is provided on the bottom surface. A heating component for heating the capacitor housing is provided on the box cover;

[0010] Support plate: The support plate is fixedly connected to the inner top surface of the box body. An electric push rod is provided on the support plate, and a driving mechanism for driving the connecting frame one and the gear is provided at the movable end of the electric push rod.

[0011] Preferably, the driving mechanism includes a connecting frame two arranged at the movable end of the electric push rod, a rectangular frame arranged on the connecting frame two, a movable block slidably arranged in the rectangular frame, and a compression spring. The movable block is fixedly connected to the connecting frame one, and a strip-shaped tooth plate matching the gear is provided on the side surface of the rectangular frame through a connecting frame three.

[0012] Preferably, the heating component includes a bottom plate arranged on the bottom surface of the box cover, a movable plate slidably arranged on the side surface of the box cover, and a heater arranged on the top surface of the movable plate. A plurality of return springs are arranged between the movable plate and the bottom plate. A conductive plate one is provided on the bottom surface of the movable plate, and a conductive plate two matching the conductive plate one is provided on the top surface of the bottom plate.

[0013] Preferably, the conductive plate one is electrically connected to the heater through a wire, and the conductive plate two is electrically connected to an external power supply.

[0014] Preferably, a control device is provided on the front end surface of the box body, and the control device includes a processor, a controller, and a display. The processor is electrically connected to the pressure sensor and the temperature sensor through a wire, and the controller is electrically connected to the constant temperature box and the display through a wire.

[0015] Preferably, the driving member includes a hoisting wheel arranged on the outer walls at both ends of the connecting shaft and a traction rope wound inside the hoisting wheel. Strip-shaped openings are symmetrically arranged on the outer wall of the sleeve. A connecting rod matching the strip-shaped opening is fixedly connected to the outer wall of the movable column. A strip-shaped sliding groove is arranged on the inner wall of the box body, and one end of the connecting rod extends into the strip-shaped sliding groove. A circular hole is arranged on the top surface of the box body, and the top of the traction rope movably passes through the circular hole and extends into the constant temperature box and is fixedly connected to the connecting rod.

[0016] Preferably, both the top and bottom of the circular hole are in a wide-mouth shape, and a plurality of annular gaskets matching the circular hole are uniformly arranged on the outer wall of the traction rope.

[0017] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0018] Through the use of the driving mechanism, the present invention facilitates driving the lid to move first, so that the capacitor housing moves under the temperature sensor, and the lid and the constant temperature box are closed, providing a stable environment for the heat dissipation performance detection of the capacitor housing and improving the accuracy of the heat dissipation performance detection of the capacitor housing; then the temperature sensor is brought into contact with the capacitor housing to fix the capacitor housing, avoiding the phenomenon of the capacitor housing tipping or moving during the detection of the capacitor housing, thus avoiding the occurrence of electric shock safety accidents and further facilitating the detection of the heat dissipation performance of the capacitor housing; at the same time, the temperature of the capacitor housing before heating is measured to obtain a detection standard and achieve the effect of self-comparison, thus facilitating the detection of the heat dissipation performance of the capacitor housing; finally, the heater is powered on to simulate the heat generated during the normal operation of the capacitor, and then the temperature of the current capacitor housing surface is detected, and the heat dissipation performance of the capacitor housing is obtained by comparing with the temperature of the capacitor housing before heating; wherein, by providing an annular gasket on the traction rope, it is convenient to seal the circular hole, avoid the leakage of heat in the constant temperature box from the circular hole, avoid the temperature imbalance in the constant temperature box, and thus improve the accuracy of the heat dissipation performance detection of the capacitor housing; at the same time, it also avoids the traction rope from contacting the circular hole, thus avoiding damage to the traction rope due to friction and further facilitating the protection of the traction rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shows a schematic structural diagram of the front view according to an embodiment of the present invention;

[0020] Figure 2 Shows a schematic structural diagram of the rear view according to an embodiment of the present invention;

[0021] Figure 3 Shows a schematic cross-sectional structural diagram of the front view according to an embodiment of the present invention;

[0022] Figure 4 Shows a schematic structural diagram of the first view of the driving mechanism according to an embodiment of the present invention;

[0023] Figure 5 Shows a schematic structural diagram of the driving member according to an embodiment of the present invention;

[0024] Figure 6 Shows a cross-sectional view of the sleeve according to an embodiment of the present invention;

[0025] Figure 7 Shows a schematic structural diagram of the second view of the driving mechanism according to an embodiment of the present invention;

[0026] Figure 8 Shows a schematic structural diagram of the connection between the traction rope and the annular gasket according to an embodiment of the present invention.

[0027] Legend Explanation:

[0028] 1. Box body; 2. Constant temperature box; 3. Box cover; 4. Control device; 5. Movable plate; 6. Flexible rubber sleeve; 7. Bottom plate; 8. Connecting rod; 9. Sleeve; 10. Connecting shaft; 11. Gear; 12. Traction rope; 13. Return spring; 14. Heater; 15. Conductive plate one; 16. Conductive plate two; 17. Striped tooth plate; 18. Rectangular frame; 19. Movable block; 20. Extrusion spring; 21. Connecting plate; 22. Connecting frame one; 23. Rectangular opening; 24. Hoisting wheel; 25. Mounting plate; 26. Temperature sensor; 27. Striped opening; 28. Pulling spring; 29. Movable column; 30. Connecting frame two; 31. Electric push rod; 32. Connecting frame three; 33. Support plate; 34. Striped chute; 35. Pressure sensor; 36. Annular gasket; 37. Circular hole. Detailed Implementation Manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] Please refer to Figure 1 - Figure 8 , the present invention provides a technical solution:

[0031] A device for detecting the heat dissipation performance of a capacitor housing, including a box body 1 and a pressure sensor 35 provided on the inner wall of the box body 1. A constant temperature box 2 (which is a prior art) is fixedly installed at the edge of the top surface of the box body 1 through bolts, and the temperature inside the constant temperature box 2 can be adjusted to provide a detection environment for the capacitor housing; a sleeve 9 is installed on the inner top surface of the constant temperature box 2 through bolts. A movable column 29 is slidably arranged in the sleeve 9, and a pulling spring 28 is arranged between the movable column 29 and the sleeve 9 for the automatic reset of the movable column 29; the bottom of the movable column 29 is installed with a mounting plate 25 through bolts for the installation of the temperature sensor 26; a temperature sensor 26 is arranged at the bottom of the mounting plate 25 for detecting the temperature of the surface of the capacitor housing, so as to facilitate the detection of the heat dissipation performance of the capacitor housing;

[0032] A connecting shaft 10 is rotatably arranged in the box body 1. A gear 11 and a driving member for driving the movable column 29 are arranged on the outer wall of the connecting shaft 10. Through the use of the driving member, it is convenient to drive the temperature sensor 26 to move, so as to facilitate the contact between the temperature sensor 26 and the capacitor housing, and thus facilitate the detection of the heat dissipation performance of the capacitor housing;

[0033] In the middle of the top surface of the box body 1, a rectangular opening 23 is provided. A connecting plate 21 is slidably arranged in the rectangular opening 23. A box cover 3 that cooperates with the constant temperature box 2 is arranged on the top surface of the connecting plate 21, and a first connecting frame 22 is arranged on the bottom surface. A heating assembly for heating the capacitor housing is arranged on the box cover 3. By using the heating assembly, it is convenient to heat the inside of the capacitor housing, and the heat generated by the mode capacitor during operation is dissipated, so as to improve the accuracy of the heat dissipation performance of the capacitor housing.

[0034] On the inner top surface of the box body 1, a support plate 33 is installed by bolts. An electric push rod 31 is installed on the support plate 33 by bolts for providing power. The movable end of the electric push rod 31 is provided with a driving mechanism for driving the first connecting frame 22 and the gear 11. By using the driving mechanism, it is convenient to first drive the box cover 3 to move, so that the capacitor housing moves below the temperature sensor 26, and the box cover 3 and the constant temperature box 2 are closed, providing a stable environment for detecting the heat dissipation performance of the capacitor housing and improving the accuracy of detecting the heat dissipation performance of the capacitor housing. Then, the temperature sensor 26 is brought into contact with the capacitor housing to fix the capacitor housing, avoiding the phenomenon of the capacitor housing tipping or moving during the detection of the capacitor housing, thereby avoiding the occurrence of electric shock safety accidents and further facilitating the detection of the heat dissipation performance of the capacitor housing. At the same time, the temperature of the capacitor housing before heating is also measured to obtain a detection standard and achieve the effect of self-comparison, which is beneficial to the detection of the heat dissipation performance of the capacitor housing. Finally, the heater 14 is powered on to work, simulating the heat generated by the normal operation of the capacitor, and then the temperature of the current capacitor housing surface is detected. The heat dissipation performance of the capacitor housing is obtained by comparing the temperature of the capacitor housing before heating.

[0035] In the present invention, the driving mechanism includes a second connecting frame 30 arranged at the movable end of the electric push rod 31, a rectangular frame 18 arranged on the second connecting frame 30, a movable block 19 slidably arranged in the rectangular frame 18, and a compression spring 20. The compression spring 20 is at one end of the fixed end of the electric push rod 31 and is used to squeeze the movable block 19, so that the movable block 19 moves synchronously with the rectangular frame 18. The movable block 19 is fixedly connected to the first connecting frame 22, and a strip-shaped tooth plate 17 that cooperates with the gear 11 is arranged on the side surface of the rectangular frame 18 through a third connecting frame 32.

[0036] In the present invention, the heating assembly includes a bottom plate 7 provided on the bottom surface of the lid 3, a movable plate 5 slidably provided on the side surface of the lid 3, and a heater 14 provided on the top surface of the movable plate 5. A plurality of return springs 13 are provided between the movable plate 5 and the bottom plate 7 for automatically resetting the movable plate 5, thereby achieving power-off of the heater 14. Among them, a flexible rubber sleeve 6 is sleeved between the bottom plate 7 and the movable plate 5 to prevent the conductive plate one 15 and the conductive plate two 16 from being exposed, thereby avoiding the occurrence of electric shock and further improving the safety of the detection device. A conductive plate one 15 is provided on the bottom surface of the movable plate 5, and a conductive plate two 16 mating with the conductive plate one 15 is provided on the top surface of the bottom plate 7. The conductive plate one 15 is electrically connected to the heater 14 through a wire, and the conductive plate two 16 is electrically connected to an external power supply. Through the coordinated use of the conductive plate two 16, the conductive plate one 15, and the return spring 13, it is convenient to control the energization of the heater 14, avoid continuous energization of the heater 14, thereby avoiding waste of electric energy and saving resources.

[0037] In the present invention, a control device 4 is provided on the front end surface of the box body 1, and the control device 4 includes a processor, a controller, and a display. The processor is electrically connected to the pressure sensor 35 and the temperature sensor 26 through wires, and the controller is electrically connected to the constant temperature box 2 and the display through wires. It is used to control the energization of the constant temperature box 2 and also control the temperature sensor 26 to measure the temperature of the capacitor housing.

[0038] In the present invention, the driving member includes a hoisting wheel 24 provided on the outer walls at both ends of the connecting shaft 10 and a traction rope 12 wound inside the hoisting wheel 24. Symmetrically arranged strip-shaped openings 27 are provided on the outer wall of the sleeve 9, and a connecting rod 8 mating with the strip-shaped openings 27 is fixedly connected to the outer wall of the movable column 29. A strip-shaped sliding groove 34 is provided on the inner wall of the box body 1, and one end of the connecting rod 8 extends into the strip-shaped sliding groove 34. A circular hole 37 is provided on the top surface of the box body 1, and the top of the traction rope 12 movably passes through the circular hole 37 and extends into the constant temperature box 2 and is fixedly connected to the connecting rod 8.

[0039] In the present invention, both the top and bottom of the circular hole 37 are wide-mouthed, which is beneficial for the annular sealing gasket 36 to pass through the circular hole 37. A plurality of annular sealing gaskets 36 mating with the circular hole 37 are evenly provided on the outer wall of the traction rope 12, and the annular sealing gasket 36 is made of flexible rubber material, so that the annular sealing gasket 36 can deform and pass through the circular hole 37, and at the same time, the annular sealing gasket 36 can automatically recover after deformation, thereby facilitating the sealing of the circular hole 37, preventing the heat in the constant temperature box 2 from leaking through the circular hole 37, avoiding temperature imbalance in the constant temperature box 2, and thus improving the accuracy of the capacitor housing heat dissipation performance detection. At the same time, it also prevents the traction rope 12 from contacting the circular hole 37, thereby avoiding damage to the traction rope 12 due to friction and further facilitating the protection of the traction rope 12.

[0040] Working principle: When the present invention is in use, first place the capacitor housing in the middle of the movable plate 5, and the heater 14 is located inside the capacitor housing; then, turn on the electric push rod 31 (the initial end of the movable end of the electric push rod 31 is point A, and the position of the movable end of the electric push rod 31 when the connecting plate 21 moves to the other end of the rectangular opening 23 is point B, the position of the movable end of the electric push rod 31 when the temperature sensor 26 just contacts the capacitor housing is point C, and the position of the movable end of the electric push rod 31 when the first conductive plate 15 and the second conductive plate 16 contact is point D). Drive the rectangular frame 18 to move by the elongation of the movable end of the electric push rod 31; and the movement of the rectangular frame 18 is divided into two processes:

[0041] Process 1: When controlling the movable end of the electric push rod 31 to move from point A to point B, at this time, under the action of the compression spring 20, the movable block 19 moves synchronously with the rectangular frame 18, thereby driving the first connecting frame 22 to move, thus driving the connecting plate 21 to move, further driving the bottom plate 7 and the box cover 3 to move, and driving the capacitor housing into the constant temperature box 2 by the movement of the box cover 3;

[0042] When the movable end of the electric push rod 31 moves to point B, at this time, the capacitor housing moves below the temperature sensor 26 and the box cover 3 is closed with the constant temperature box 2. At the same time, the bottom plate 7 contacts the pressure sensor 35. At this time, the pressure sensor 35 receives the signal and transmits the signal to the processor in the control device 4. Through the processing of the processor and controlling the constant temperature box 2 to open through the controller, the temperature in the constant temperature box 2 rises to the preset value and provides a detection environment for the capacitor housing;

[0043] At the same time, when the movable end of the electric push rod 31 moves to point B, at this time, the strip-shaped toothed plate 17 meshes with the gear 11;

[0044] Process 2: When controlling the movable end of the electric push rod 31 to move from point B to point C, at this time, the strip-shaped toothed plate 17 moves with the rectangular frame 18, thereby driving the gear 11 to rotate, thus driving the connecting shaft 10 to rotate, further driving the winding wheel 24 to rotate, realizing the winding of the traction rope 12, thereby driving the connecting rod 8 to move downward, further driving the movable column 29 to move downward;

[0045] After the movable end of the electric push rod 31 moves to point C, at this time, the temperature sensor 26 contacts the capacitor housing. At this time, the temperature sensor 26 will detect the temperature on the surface of the capacitor housing, and then transmit the signal to the processor in the control device 4. Through the processing of the processor, the temperature on the surface of the capacitor housing at this time is displayed on the display, denoted as: R1;

[0046] Then, control the movable end of the electric push rod 31 to move from point C to point D. At this time, the strip tooth plate 17 continues to move, further causing the movable column 29 to continue moving downward, thus causing the temperature sensor 26 to continue moving downward, and further causing the movable plate 5 to move downward. The downward movement of the movable plate 5 drives the first conductive plate 15 to move downward, thereby causing the first conductive plate 15 to contact the second conductive plate 16, enabling the heater 14 to be powered on and work, and generating heat inside the capacitor housing through the heater 14;

[0047] At this time, the temperature sensor 26 continuously transmits the detected temperature to the processor in the control device 4, and through the processing of the processor, the temperature on the display continuously rises. When the temperature remains unchanged, the temperature at this time is recorded as R2;

[0048] Then, by comparing the temperatures between R1 and R2, the heat dissipation performance of the capacitor housing is judged. Specifically:

[0049] When the value of R2 is greater than the value of R1, at this time, the heat dissipation performance of the capacitor housing is better;

[0050] When the value of R2 is equal to the value of R1, at this time, the heat dissipation performance of the capacitor housing is not good;

[0051] When the value of R2 is less than the value of R1, at this time, the heat dissipation performance of the capacitor housing is not good;

[0052] Finally, after the heat dissipation performance of the capacitor housing is detected, the movable end of the electric push rod 31 contracts, driving the rectangular frame 18 to reset. Then, under the action of the tension spring 28, the movable column 29 resets. Then, under the action of the reset spring 13, the first conductive plate 15 and the second conductive plate 16 are separated. Then, the heater 14 is powered off; then, the temperature sensor 26 resets; finally, the box cover 3 resets, and the capacitor housing is moved out of the constant temperature box 2, facilitating the taking of the capacitor housing.

[0053] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A capacitor housing heat dissipation performance detection device, comprising a box body and a pressure sensor arranged on the inner wall of the box body, characterized in that, It further includes: Thermostatic chamber: The thermostatic chamber is installed on the top surface of the box body. A sleeve is provided on the inner top surface of the thermostatic chamber. An active column is elastically arranged in the sleeve. An installation plate is provided at the bottom of the active column. A temperature sensor is provided at the bottom of the installation plate. Connecting shaft: The connecting shaft is rotatably arranged in the box body. A gear is provided on the outer wall of the connecting shaft and a driving member for driving the active column is provided. Rectangular opening: The rectangular opening is opened on the top surface of the box body. A connecting plate is slidably arranged in the rectangular opening. A box cover matched with the thermostatic chamber is provided on the top surface of the connecting plate and a connecting frame one is provided on the bottom surface. A heating component for heating the capacitor housing is provided on the box cover. Support plate: The support plate is fixedly connected to the inner top surface of the box body. An electric push rod is provided on the support plate. A driving mechanism for driving the connecting frame one and the gear is provided at the movable end of the electric push rod. The driving mechanism includes a connecting frame two arranged at the movable end of the electric push rod, a rectangular frame arranged on the connecting frame two, a movable block slidably arranged in the rectangular frame and a compression spring. The movable block is fixedly connected to the connecting frame one. A strip-shaped tooth plate matched with the gear is provided on the side surface of the rectangular frame through a connecting frame three. The heating component includes a bottom plate arranged on the bottom surface of the box cover, a movable plate slidably arranged on the side surface of the box cover and a heater arranged on the top surface of the movable plate. A plurality of reset springs are arranged between the movable plate and the bottom plate. A conductive plate one is provided on the bottom surface of the movable plate. A conductive plate two matched with the conductive plate one is provided on the top surface of the bottom plate.

2. The heat dissipation performance detection device for a capacitor housing according to claim 1, wherein The conductive plate one is electrically connected to the heater through a wire. The conductive plate two is electrically connected to an external power supply.

3. The heat dissipation performance detection device for a capacitor housing according to claim 2, characterized in that, A control device is provided on the front end surface of the box body. The control device includes a processor, a controller and a display. The processor is electrically connected to the pressure sensor and the temperature sensor through wires. The controller is electrically connected to the thermostatic chamber and the display through wires.

4. The capacitor housing heat dissipation performance detection device according to claim 3, characterized in that, The driving member includes a hoisting wheel arranged on the outer walls at both ends of the connecting shaft and a traction rope wound in the hoisting wheel. Strip-shaped openings are symmetrically opened on the outer wall of the sleeve. A connecting rod matched with the strip-shaped opening is fixedly connected to the outer wall of the active column. A strip-shaped chute is opened on the inner wall of the box body. One end of the connecting rod extends into the strip-shaped chute. A circular hole is opened on the top surface of the box body. The top of the traction rope movably penetrates through the circular hole and extends into the thermostatic chamber and is fixedly connected to the connecting rod.

5. The heat dissipation performance detection device for a capacitor housing according to claim 4, characterized in that, Both the top and the bottom of the circular hole are in a wide-mouth shape. A plurality of annular gaskets matched with the circular hole are uniformly arranged on the outer wall of the traction rope.

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