Vehicle-mounted capacitor explosion-proof shock-absorbing device

Abstract

The utility model discloses a vehicle-mounted capacitor explosion-proof shock absorption device, including support body, set up in the fixed clamp of support body both ends and set up a plurality of fixed pins on one of fixed clamp, wherein, support body includes first side plate, second side plate, third side plate and fourth side plate, be provided with clamping elastic sheet on first side plate with third side plate, second side plate with fourth side plate are sealed explosion -proof baffle, first side plate, second side plate, third side plate and fourth side plate are enclosed together, form a through capacitor containing space, to accommodate capacitor body. The utility model discloses vehicle-mounted capacitor explosion-proof shock absorption device can install and fix capacitor firmly and stably on the circuit board, and the capacitor is shock -absorbed, prevents capacitor and car body resonance premature damage, and effectively restricts capacitor body, prevents capacitor internal explosion radiation impact, protects other devices on the circuit board.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device technology, and in particular relates to an explosion-proof and shock-absorbing device for vehicle-mounted capacitors. Background Technology

[0002] New energy vehicles generally use 450VDC-500VDC high-voltage aluminum electrolytic capacitors with a lifespan of 105℃ and 3000-5000 hours, requiring high explosion-proof performance. Currently, aluminum electrolytic capacitors in new energy vehicles are mainly secured by the upper and lower covers of the on-board charger (OBC) box. During long-term use, loosely secured aluminum electrolytic capacitors are constantly in a state of resonance with the vehicle's movement, causing radial vibration impact on the capacitor cells, posing a significant safety hazard. Prolonged use can cause the insulating paper at both ends to vibrate and creep, eventually leading to short circuits and explosions.

[0003] However, the aluminum electrolytic capacitors currently used in new energy vehicles do not adequately address the issues of explosion protection and shock absorption. Therefore, it is necessary to conduct research and development to provide a solution to address the explosion protection and shock absorption problems of vehicle capacitors.

[0004] The above background information is provided only to aid in understanding the inventive concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The purpose of this utility model is to provide a vehicle-mounted capacitor explosion-proof shock absorption device to solve at least one of the problems mentioned above in the background technology.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0007] An explosion-proof and shock-absorbing device for vehicle-mounted capacitors includes a support body, fixing clamps disposed at both ends of the support body, and a plurality of fixing pins disposed on one of the fixing clamps; wherein, the support body includes a first side plate, a second side plate, a third side plate, and a fourth side plate, the first side plate and the third side plate are provided with clamping springs, and the second side plate and the fourth side plate are sealed explosion-proof partitions; the first side plate, the second side plate, the third side plate, and the fourth side plate are gathered together to form a through capacitor housing space to accommodate the capacitor body.

[0008] In some embodiments, the capacitor receiving space is generally a through square hole, and the fixing clamps are disposed at both ends of the square hole.

[0009] In some embodiments, the fixing clamp is generally circular, and the inner diameter of the fixing clamp is adapted to the outer diameter of the capacitor body.

[0010] In some embodiments, a first window is provided on the first side plate, and a first clamping spring is provided at the first window.

[0011] In some embodiments, the third side plate is opposite to the first side plate, the third side plate is provided with a third window, and a third clamping spring is provided at the third window. The structure of the third clamping spring is the same as that of the first clamping spring.

[0012] In some embodiments, an arc-shaped ridge is provided at the connection point of each pair of adjacent side plates in the first side plate, second side plate, third side plate, and fourth side plate, and the arc-shaped ridge forms an arc-shaped groove on the inner wall of the capacitor receiving space.

[0013] In some embodiments, the fixing clamp includes a circular body and an elastic portion protruding outward from the circular body; wherein the fixing clamp is connected to the supporting body through the elastic portion.

[0014] In some embodiments, the first window is an upright rectangular opening, and the length of the first clamping spring is equal to or less than the length of the rectangular opening.

[0015] In some embodiments, the first clamping spring includes a spring body, a connecting end, and a clamping end; wherein the connecting end is fixedly connected to the edge of the first window, and the clamping end is not fixedly set.

[0016] In some embodiments, the number of fixed pins is at least two, both fixed pins are disposed on the same fixed clamp, and the extension direction of the fixed pins is perpendicular to the plane of the circular body of the fixed clamp.

[0017] The beneficial effects of this utility model's technical solution are:

[0018] Compared to existing technologies, this utility model of vehicle-mounted capacitor explosion-proof shock absorption device can stably and firmly install and fix the capacitor on the circuit board, absorb the shock of the capacitor, prevent the capacitor from resonating with the vehicle body and causing premature damage, and effectively constrain the capacitor body to prevent the capacitor from exploding and radiating impact, thus protecting other components on the circuit board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the vehicle-mounted capacitor explosion-proof and shock-absorbing device of the present invention;

[0021] Figure 2 This is a three-dimensional schematic diagram of a vehicle-mounted capacitor explosion-proof shock absorption device with a capacitor installed, according to an embodiment of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of a vehicle-mounted capacitor explosion-proof shock absorption device with a capacitor installed, according to another embodiment of the present invention.

[0023] Figure 4 yes Figure 3 A schematic diagram of its breakdown. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of the embodiments of this utility model clearer and more understandable, and to enable those skilled in the art to better understand the solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0025] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be for both fixing and circuit connection purposes.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, "multiple" means two or more. Terms such as "installed," "connected," "joined," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Reference Figures 1-4 As shown in the figure, as an embodiment of the present invention, a vehicle-mounted capacitor explosion-proof shock absorption device 300 is provided. The explosion-proof shock absorption device 300 includes: a support body 20, fixing clamps 30 disposed at both ends of the support body 20, and a plurality of fixing pins 40 disposed on one of the fixing clamps 30; wherein, the support body 20 includes a first side plate 21, a second side plate 22, a third side plate 23, and a fourth side plate 24, the first side plate 21 and the third side plate 23 are provided with clamping springs 25, and the second side plate 22 and the fourth side plate 24 are sealed explosion-proof partitions; the first side plate 21, the second side plate 22, the third side plate 23, and the fourth side plate 24 are gathered together to form a through capacitor receiving space 201 to accommodate the capacitor body 100; the fixing clamps 30 at both ends of the support body 20 are respectively used to fasten the two ends of the capacitor body 100; the fixing pins 40 are used to install and fix the fixing device on the circuit board.

[0029] Please refer to Figure 4 As shown, in some embodiments, the first side plate 21 and the second side plate 22 are arranged opposite to each other, and the second side plate 22 and the fourth side plate 24 are arranged opposite to each other; the clamping springs 25 on the first side plate 21 and the third side plate 23 clamp the side of the capacitor body.

[0030] The support body 20 has a square frame structure and a capacitor receiving space 201 to accommodate the capacitor body 100. The capacitor receiving space 201 is generally a through square hole, and the fixing clamps 30 are located at both ends of the through hole. The fixing clamps 30 are generally circular, and the inner diameter of the fixing clamps 30 is adapted to the outer diameter of the capacitor body. After the capacitor body is accommodated in the capacitor receiving space 201, the capacitor body is fixed by the fixing clamps 30 and the clamping springs 25, and is mounted and fixed to the circuit board by the fixing pins 40.

[0031] A first window 210 is provided on the first side plate 21, and a first clamping spring piece 25 is provided at the first window 210. In some embodiments, the first window 210 extends longitudinally along the support body 20; the first clamping spring piece 25 extends longitudinally along the support body 20 corresponding to the first window; in some embodiments, one end of the first clamping spring piece 25 is a fixed end to be fixed to the edge of the first window; the other end of the first clamping spring piece 25 is a free end for elastically clamping the capacitor body. In some embodiments, the first window 210 is an upright rectangular opening, the length of the first clamping spring piece 25 is equal to or less than the length of the rectangular opening; the width of the first clamping spring piece 25 is less than or equal to the width of the rectangular opening; the thickness of the first clamping spring piece 25 is less than or equal to the thickness of the first side plate 21. The free end extends longitudinally upward along the first window and inclined towards the capacitor receiving space 201. The free end and the fixed end are on different planes, and the free end is provided in an arc-shaped sheet shape that matches the surface of the capacitor body.

[0032] In some embodiments, the first clamping spring 25 includes a spring body (not shown), a connecting end (not shown), and a clamping end (not shown). The connecting end is fixedly connected to the edge of the first window, while the clamping end is not fixed. The clamping spring 25 is designed to be inclined from the connecting end to the clamping end, so that when the clamping end is displaced laterally by the supporting body 20, the clamping spring 25 can generate elastic force. In some embodiments, the clamping end and the spring body are on different planes, and the clamping end is connected to the spring body through two progressively inwardly tapering arc-shaped inclined surfaces. In some embodiments, the clamping end is designed as an annular arc-shaped piece that matches the surface of the capacitor body. In some embodiments, the thickness of the clamping end is less than the thickness of the spring body.

[0033] Please refer to Figures 2-4As shown, the third side plate 23 is opposite to the first side plate 21. A third window 230 is provided on the third side plate 23, and a third clamping spring 27 is provided at the third window. The structure of the third clamping spring 27 is the same as that of the first clamping spring 25; see the first clamping spring 25 for details, which will not be repeated here. In some embodiments, the free ends of the first clamping spring 25 and the third clamping spring 25 together form a circular clamping space. In some embodiments, the inner diameter of the circular clamping space is less than or equal to the outer diameter of the capacitor body. When the capacitor is placed in the capacitor receiving space 201, the free ends of the first clamping spring 25 and the third clamping spring tightly clamp the surface of the capacitor body, thereby firmly fixing the capacitor body.

[0034] In some embodiments, an arc-shaped ridge 26 is provided at the connection point of every two adjacent side plates of the first side plate 21, the second side plate 22, the third side plate 23, and the fourth side plate 24. The arc-shaped ridge 26 forms an arc-shaped groove (not labeled) on the inner wall of the capacitor housing space 201. This arrangement can improve the shock absorption performance of the main body and stably place the capacitor body in the capacitor housing space 201.

[0035] In some embodiments, the first side plate 21 and the third side plate 23 have the same shape; the second side plate 22 and the fourth side plate 24 have the same shape. In some embodiments, the first side plate 21, the second side plate 22, the third side plate 23, and the fourth side plate 24 have the same thickness. In some embodiments, two opposing side plates (such as the first side plate 21 and the third side plate 23, the second side plate 22 and the fourth side plate 24) are arranged parallel to each other, and the distance between the two opposing side plates is equal to the outer diameter of the capacitor body placed in the receiving space. In some embodiments, the distance between the two opposing side plates is greater than the outer diameter of the capacitor body placed in the capacitor receiving space.

[0036] Please refer to Figures 1-3As shown, the fixing clamp 30 includes a circular body (not labeled) and an elastic portion 301 protruding outward from the circular body; wherein, there is a gap between the circular body and the supporting body 20; the fixing clamp 30 is connected to the supporting body 20 through the elastic portion 301. In some embodiments, the circular body includes four arc-shaped spring pieces 302, the four arc-shaped spring pieces 302 are on the same circle, and the elastic portion 301 is disposed between adjacent arc-shaped spring pieces; in some embodiments, the four arc-shaped spring pieces correspond to the first side plate 21, the second side plate 22, the third side plate 23, and the fourth side plate 24 of the supporting body 20, respectively. In some embodiments, the four arc-shaped spring pieces have equal arc lengths and the same curvature; in some embodiments, the arc-shaped ridge of the support body 20 extends to connect to the elastic portion of the fixing clamp 30; in some embodiments, the elastic portion is approximately U-shaped, the opening at the bottom of the U-shape is equal in size to the opening of the arc-shaped groove formed by the arc-shaped ridge on the inner wall of the receiving space, and the depth of the U-shape is greater than the depth of the arc-shaped groove. In some embodiments, the inner diameter of the circular body is less than or equal to the outer diameter of both ends of the capacitor body. By setting the fixing clamp 30 in this way, the two ends of the capacitor body can be well fixed, the capacitor body can be stably placed in the receiving space, and the overall fastening effect can be improved.

[0037] Please refer to Figures 2-3 As shown, there are at least two fixed pins 40, both of which are disposed on the same fixing clamp 30. The extending direction of the fixed pin 40 is perpendicular to the plane of the circular body of the fixing clamp 30, or the angle between the extending direction of the fixed pin 40 and the plane of the circular body of the fixing clamp 30 is greater than zero degrees. In some embodiments, the extending direction of the fixed pin 40 is the same as the extending direction of the lead-out terminals of the capacitor body. In some embodiments, the two fixed pins 40 are arranged diagonally, and the line connecting the two fixed pins 40 intersects the line connecting the two lead-out terminals of the capacitor. In this embodiment, there are four fixed pins 40, which are respectively disposed on the four elastic parts of the fixing clamp 30, and the four fixed pins 40 are connected in sequence to form a square. By arranging the pins in this way, the capacitor body can be stably fixed on the external circuit board, and since all the fixed pins 40 are disposed on the same fixing clamp 30, when a fixed pin 40 is damaged, only one fixing clamp 30 will be affected, and neither fixing clamp 30 will be affected.

[0038] This invention securely mounts the capacitor to a fixing device by fixing both ends of the capacitor with two fixing clamps 30 and clamping the capacitor with a clamping spring 25. The fixing pin 40 on one of the fixing clamps 30 can stably mount the capacitor on the circuit board. At the same time, by setting two explosion-proof partitions, it can prevent the capacitor from splashing and damaging other components on the circuit board in the event of an explosion.

[0039] It is understood that the above description is a further detailed explanation of the present invention in conjunction with specific / preferred embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the inventive concept, and all such substitutions or modifications should be considered within the scope of protection of this patent. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention.

[0040] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described herein, as well as the features of different embodiments or examples, without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the scope defined by the appended claims.

[0041] Furthermore, the scope of this invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, means, methods, and steps described in the specification. Those skilled in the art will readily understand that existing or later-developed disclosures, processes, machines, manufactures, material compositions, means, methods, or steps that perform substantially the same function as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein can be utilized. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, means, methods, or steps within their scope.

Claims

1. A vehicle-mounted capacitor explosion-proof shock absorption device, characterized in that: The device includes a support body, fixing clamps at both ends of the support body, and multiple fixing pins on one of the fixing clamps. The support body includes a first side plate, a second side plate, a third side plate, and a fourth side plate. The first side plate and the third side plate are provided with clamping springs, and the second side plate and the fourth side plate are sealed explosion-proof partitions. The first side plate, the second side plate, the third side plate, and the fourth side plate are gathered together to form a through capacitor housing space to accommodate the capacitor body.

2. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 1, characterized in that: The capacitor housing space is approximately a through square hole, and the fixing clamps are located at both ends of the square hole.

3. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 1, characterized in that: The fixing clamp is roughly circular, and its inner diameter is matched with the outer diameter of the capacitor body.

4. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 1, characterized in that: A first window is provided on the first side plate, and a first clamping spring is provided at the first window.

5. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 4, characterized in that: The third side plate is opposite to the first side plate. A third window is provided on the third side plate, and a third clamping spring is provided at the third window. The structure of the third clamping spring is the same as that of the first clamping spring.

6. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 1, characterized in that: An arc-shaped ridge is provided at the connection point of each pair of adjacent side plates in the first, second, third, and fourth side plates, and the arc-shaped ridge forms an arc-shaped groove on the inner wall of the capacitor receiving space.

7. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 1, characterized in that: The fixing clamp includes a circular body and an elastic portion protruding outward from the circular body; wherein the fixing clamp is connected to the supporting body through the elastic portion.

8. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 4, characterized in that: The first window is an upright rectangular opening, and the length of the first clamping spring is equal to or less than the length of the rectangular opening.

9. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 4, characterized in that: The first clamping spring includes a spring body, a connecting end, and a clamping end; wherein, the connecting end is fixedly connected to the edge of the first window, and the clamping end is not fixedly set.

10. The vehicle-mounted capacitor explosion-proof shock absorption device as described in claim 7, characterized in that: The number of fixed pins is at least two, and both fixed pins are set on the same fixed clamp. The extension direction of the fixed pins is perpendicular to the plane of the circular body of the fixed clamp.

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