Vehicle-mounted high-temperature-resistant capacitor

Abstract

The utility model discloses a vehicle-mounted high temperature resistant capacitor, relates to the vehicle-mounted capacitor technology field, and comprises a capacitor body, a heat radiation fan, a capacitor core, a bottom cover and a cathode pin, the top of the capacitor body is welded with a top cover, the top of the top cover is embedded with the heat radiation fan, the heat radiation fan is electrically connected with the capacitor core and is used for providing a power supply for the heat radiation fan, and the cathode pin is connected with the bottom cover. Hole grooves are formed in the surface of the outer wall of the capacitor body, the lifting cover is rotated in the transportation process of the capacitor, then the limiting rods can move in the limiting grooves, the lifting cover can slide outside the capacitor body under pushing of the springs, then the cathode pins and the anode pins can be shrunk into the insertion grooves, and therefore the transportation efficiency of the capacitor is improved. And furthermore, by rotating the lifting cover, the limiting rod can be clamped and limited at one end of the top of the limiting groove, the pins can be protected through the inserting groove of the capacitor and the lifting cover, and pin bending caused by external force collision or extrusion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted capacitors, and particularly relates to a high-temperature resistant capacitor for vehicle use. Background Technique

[0002] The function of the vehicle-mounted capacitor is to charge and discharge. Usually, during the charging and discharging process, the temperature of the capacitor core will rise. After retrieval, the patent with the authorization number of CN211181971U in China discloses a high-temperature resistant capacitor for vehicle use. Although this high-temperature resistant capacitor for vehicle use achieves the effect of isolating external heat through the heat insulation mechanism and achieves a good heat dissipation effect through the heat dissipation mechanism, providing a stable working environment for the capacitor, the cathode lead and the anode lead of this capacitor are relatively fragile during transportation, and will be bent and deformed when subjected to collision or extrusion, thus affecting the use. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a high-temperature resistant capacitor for vehicle use, which solves the problem that the cathode lead and the anode lead of the existing vehicle-mounted capacitor are easily deformed due to external extrusion during transportation mentioned in the background technique.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A high-temperature resistant capacitor for vehicle use, including a capacitor body, a cooling fan, a capacitor core, a bottom cover and a cathode pin. A top cover is welded to the top of the capacitor body, and a cooling fan is embedded in the top of the top cover. The cooling fan is electrically connected to the capacitor core and is used to provide power for the cooling fan. A hole groove is opened on the outer wall surface of the capacitor body. A capacitor core is arranged inside the capacitor body. The capacitor body is connected to the outer wall of the capacitor core through fins. The bottom of the capacitor core body is connected with a cathode pin and an anode pin. A limiting rod is embedded at the bottom end of the side of the capacitor body. The limiting rod is located inside a limiting groove. The limiting groove is opened on the surface of a lifting cover. A bottom cover is arranged at the bottom of the lifting cover. Two hole grooves are opened on the surface of the bottom cover, and the hole grooves on the surface of the bottom cover are communicated with the limiting groove.

[0005] Preferably, there is a gap between the bottom of the cooling fan and the capacitor core body, and the outer wall of the capacitor core body is made of copper-aluminum composite material. The material of the capacitor core body is the same as that of the fins. There are multiple fins, and the fins are distributed in an annular equidistant manner with each other. The copper-aluminum composite material is beneficial to achieving better heat conduction performance, and further beneficial to heat dissipation, so that it has high-temperature resistance.

[0006] Preferably, one end of the bottom of the cathode pin and the anode pin penetrates into a slot, and an insulating coating is provided on the inner wall surface of the slot. When the pin shrinks into the slot, it will not be collided and extruded by external forces.

[0007] Preferably, a spring is provided between the bottom cover and the capacitor core. The spring is located inside the lifting cover. The outer wall of the lifting cover is provided with air grooves, so that the limiting rod can be engaged in the grooves at both ends of the limiting groove under the push of the spring.

[0008] Preferably, an annular groove is formed in the inner wall of the bottom of the lifting cover, and the groove is slidably connected to the outside of the bottom cover, which is beneficial to avoid the bottom cover being driven to rotate when the lifting cover rotates, resulting in pin damage.

[0009] The utility model provides a high-temperature resistant capacitor for vehicle use, which has the following beneficial effects:

[0010] (1) For the high-temperature resistant capacitor for vehicle use, during transportation, by rotating the lifting cover, the limiting rod can move inside the limiting groove. Under the push of the spring, the lifting cover can slide outside the capacitor body, which is beneficial to enable the cathode pin and the anode pin to contract into the slot. Then, by rotating the lifting cover, the limiting rod can be stuck and limited at one end of the top of the limiting groove. The slot of the capacitor and the lifting cover are beneficial to protect the pins from being bent due to external collision or extrusion.

[0011] (2) For the high-temperature resistant capacitor for vehicle use, the heat generated by the capacitor core during operation can be guided to the fins for heat dissipation through the surface of the fins. At the same time, the fan can introduce external air into the capacitor body through the holes on the outer wall of the capacitor body, and then exchange heat with the heat sink for cooling, improving the heat dissipation efficiency of the capacitor core. The heated air is discharged through the fan, which is beneficial to enable the capacitor core to have a high heat dissipation effect and high-temperature resistance during operation.

[0012] Thus, the problem that the cathode lead and the anode lead of the existing vehicle-mounted capacitor are easily deformed due to external extrusion during transportation is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 is a schematic diagram of the spring structure of the utility model;

[0015] Figure 3 is a schematic diagram of the limiting rod structure of the utility model;

[0016] Figure 4 is a schematic diagram of the side view structure of the utility model;

[0017] Figure 5 is a schematic diagram of the lifting cover structure of the utility model.

[0018] In the figure, 1 is the capacitor body; 2 is the top cover; 3 is the heat dissipation fan; 4 is the fin; 5 is the capacitor core; 6 is the lifting cover; 7 is the limit rod; 8 is the limit groove; 9 is the bottom cover; 10 is the slot; 11 is the spring; 12 is the air duct; 13 is the cathode pin; 14 is the anode pin. Specific implementation mode

[0019] 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 creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1:

[0021] Please refer to Figures 1-5 , a high-temperature resistant capacitor for vehicle use, including a capacitor body 1, a heat dissipation fan 3, a capacitor core 5, a bottom cover 9, and a cathode pin 13. The top of the capacitor body 1 is welded with a top cover 2, and a heat dissipation fan 3 is embedded on the top of the top cover 2. The outer wall surface of the capacitor body 1 is provided with a hole groove. The capacitor core 5 is arranged inside the capacitor body 1. The capacitor body 1 is connected to the outer wall of the capacitor core 5 through fins 4. The bottom of the capacitor core 5 body is connected with a cathode pin 13 and an anode pin 14. The side bottom end of the capacitor body 1 is embedded with a limit rod 7, and the limit rod 7 is located inside a limit groove 8. The limit groove 8 is opened on the surface of the lifting cover 6. The bottom of the lifting cover 6 is provided with a bottom cover 9. Two hole grooves are opened on the surface of the bottom cover 9, and the hole grooves on the surface of the bottom cover 9 are communicated with the limit groove 8. The bottom ends of the cathode pin 13 and the anode pin 14 penetrate into the slot 10. The inner wall surface of the slot 10 is provided with an insulating coating. An annular groove is opened on the inner wall of the bottom of the lifting cover 6, and the groove is slidably connected with the outside of the bottom cover 9. During the transportation of the capacitor, by rotating the lifting cover 6, the limit rod 7 can move inside the limit groove 8. Under the push of the spring 11, the lifting cover 6 can slide outside the capacitor body 1, which is beneficial to the cathode pin 13 and the anode pin 14 to contract into the slot 10. Then, by rotating the lifting cover 6, the limit rod 7 can be stuck and limited at the top end of the limit groove 8. The slot 10 and the lifting cover 6 of the capacitor are beneficial to protect the pins from being bent due to external collision or extrusion.

[0022] Embodiment 2:

[0023] There is a gap between the bottom of the heat dissipation fan 3 and the body of the capacitor core 5. The outer wall of the capacitor core 5 body is made of copper-aluminum composite material. The material of the capacitor core 5 body is the same as that of the fins 4. There are multiple fins 4, and the fins 4 are distributed in an annular equidistant manner. A spring 11 is arranged between the bottom cover 9 and the capacitor core 5. The spring 11 is located inside the lifting cover 6. The outer wall of the lifting cover 6 is provided with air grooves 12. The heat generated by the capacitor core 5 during operation can be directed to the fins 4 and dissipated through the surface of the fins 4. At the same time, the fan can draw external air into the capacitor body 1 through the holes on the outer wall of the capacitor body 1, and then exchange heat with the heat sink to cool it, improving the heat dissipation efficiency of the capacitor core 5. The heated air is discharged through the fan, which is beneficial to enabling the capacitor core 5 to have a high heat dissipation effect and high temperature resistance during operation.

[0024] Working principle: During transportation, by rotating the lifting cover 6 of the in-vehicle capacitor, the limit rod 7 can move inside the limit groove 8. Under the push of the spring 11, the lifting cover 6 can slide outside the capacitor body 1, which is beneficial to enabling the cathode pin 13 and the anode pin 14 to retract into the slot 10. Then, by rotating the lifting cover 6, the limit rod 7 can be stuck and limited at one end of the top of the limit groove 8. The slot 10 of the capacitor and the lifting cover 6 are beneficial to protecting the pins from being bent due to external collision or extrusion. By rotating the lifting cover 6 and compressing the spring 11, the cathode pin 13 and the anode pin 14 can be exposed. The heat generated by the capacitor core 5 during operation can be directed to the fins 4 and dissipated through the surface of the fins 4. At the same time, the fan can draw external air into the capacitor body 1 through the holes on the outer wall of the capacitor body 1, and then exchange heat with the heat sink to cool it, improving the heat dissipation efficiency of the capacitor core 5. The heated air is discharged through the fan.

[0025] The components of the present utility model, namely, 1. capacitor body; 2. top cover; 3. heat dissipation fan; 4. fins; 5. capacitor core; 6. lifting cover; 7. limit rod; 8. limit groove; 9. bottom cover; 10. slot; 11. spring; 12. air groove; 13. cathode pin; 14. anode pin, are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic features of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0027] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high temperature resistant capacitor for vehicle use, characterized in that: The invention comprises a capacitor body (1), a heat dissipation fan (3), a capacitor core (5), a bottom cover (9) and a cathode pin (13); a top cover (2) is welded on the top of the capacitor body (1); a heat dissipation fan (3) is embedded on the top of the top cover (2); a hole groove is provided on the outer wall surface of the capacitor body (1); a capacitor core (5) is arranged inside the capacitor body (1); the capacitor body (1) is connected to the outer wall of the capacitor core (5) through a fin (4); a cathode pin (13) and an anode pin (14) are connected to the bottom of the capacitor core (5); a limiting rod (7) is embedded on the bottom end of the side surface of the capacitor body (1); the limiting rod (7) is located inside a limiting groove (8); the limiting groove (8) is provided on the surface of a lifting cover (6); a bottom cover (9) is provided at the bottom of the lifting cover (6); two hole grooves are provided on the surface of the bottom cover (9); and the hole grooves on the surface of the bottom cover (9) are connected to the limiting groove (8).

2. The high temperature resistant capacitor for vehicle use according to claim 1, characterized in that: There is a gap between the bottom of the heat dissipation fan (3) and the body of the capacitor core (5), and the outer wall of the body of the capacitor core (5) is made of a copper-aluminum composite material. The material of the body of the capacitor core (5) is the same as that of the fins (4). A plurality of fins (4) are provided, and the fins (4) are distributed in a circular shape with equal spacing between each other.

3. The high temperature resistant capacitor for vehicle use according to claim 1, characterized in that: The cathode pin (13) and the anode pin (14) have their bottom ends inserted into the slot (10), and an insulating coating is provided on the inner wall surface of the slot (10).

4. The high temperature resistant capacitor for vehicle use according to claim 1, characterized in that: A spring (11) is provided between the bottom cover (9) and the capacitor core (5); the spring (11) is located inside the lifting cover (6); and an air groove (12) is provided on the outer wall of the lifting cover (6).

5. The high temperature resistant capacitor for vehicle use according to claim 1, characterized in that: The inner wall at the bottom of the lifting cover (6) is provided with an annular groove, and the groove is slidably connected to the outer side of the bottom cover (9).

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