Vehicle-mounted shock absorbing capacitor

Abstract

The utility model discloses a kind of vehicle-mounted shock-absorbing capacitors, including capacitor body and the fixing device of fixed capacitor body;The capacitor body includes aluminum shell, core package, cover plate and the outgoing terminal being set on cover plate;The fixing device includes support frame main body, the fixed clamp being set at the both ends of support frame main body, the plurality of clamping spring pieces being set at the side of support frame main body for clamping capacitor body and the multiple fixed pins being set on one of fixed clamp;Wherein, the fixed clamp at the both ends of support frame main body is respectively used for fastening the both ends of capacitor body;The plurality of clamping spring pieces staggered clamping aluminum shell surface of capacitor body;The fixed pin is used to install and fix on circuit board with fixing device.The utility model vehicle-mounted shock-absorbing capacitor can stably and firmly install and fix capacitor on circuit board, and shock-absorbing is carried out to capacitor, prevent capacitor and vehicle body resonance premature damage.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device technology, and in particular relates to a vehicle-mounted shock absorption capacitor. 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 automotive 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 invention is to provide a vehicle-mounted shock absorber capacitor to solve at least one of the problems mentioned above in the background section.

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

[0007] A vehicle-mounted shock absorber capacitor includes a capacitor body and a fixing device for mounting and fixing the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, a cover plate for encapsulating the core package within the aluminum shell, and lead terminals disposed on the cover plate. The fixing device includes a support frame body, fixing clamps disposed at both ends of the support frame body, a plurality of clamping springs alternately disposed on the sides of the support frame body for clamping the capacitor body, and a plurality of fixing pins disposed on one of the fixing clamps. The fixing clamps at both ends of the support frame body are used to fasten the two ends of the capacitor body, respectively. The plurality of clamping springs alternately clamp the surface of the aluminum shell of the capacitor body. The fixing pins are used to mount and fix the fixing device onto a circuit board.

[0008] In some embodiments, the main body of the support frame has a square frame structure and is provided with a capacitor receiving space to accommodate the capacitor body.

[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, the fixing clamp includes a circular body and an elastic portion protruding outward from the circular body; wherein there is a gap between the circular body and the support frame body; the fixing clamp is connected to the support frame body through the elastic portion.

[0011] In some embodiments, the support frame body includes a first side, a second side, a third side, and a fourth side, which together form the capacitor receiving space.

[0012] In some embodiments, a first window is provided on the first side, and a first clamping spring is provided at the first window; one end of the first clamping spring is a fixed end to be fixed to the edge of the first window; the other end is a free end to be used for elastically clamping the capacitor body.

[0013] In some embodiments, the second side is adjacent to the first side, and a second window is provided on the second side, and a second clamping spring is provided at the second window; the extending direction of the second clamping spring is opposite to the extending direction of the first clamping spring.

[0014] In some embodiments, the shape of the second window is the same as the shape of the first window.

[0015] In some embodiments, the first side is opposite to the third side, and the second side is opposite to the fourth side; a third window is provided on the third side, and a third clamping spring is provided at the third window; a fourth window is provided on the fourth side, and a fourth clamping spring is provided at the fourth window; wherein the extending direction of the third clamping spring is the same as the extending direction of the first clamping spring, and the extending direction of the fourth clamping spring is the same as the extending direction of the second clamping spring.

[0016] In some embodiments, an arc-shaped ridge is provided at the connection point of each pair of adjacent sides in the first side, second side, third side, and fourth side, and the arc-shaped ridge forms an arc-shaped groove on the inner wall of the receiving space.

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

[0018] Compared with existing technologies, the vehicle-mounted shock-absorbing capacitor of this invention can stably and firmly install and fix the capacitor on the circuit board, and reduce the vibration of the capacitor to achieve shock absorption and prevent premature damage to the capacitor due to resonance with the vehicle body. 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 shock-absorbing capacitor of the present invention;

[0021] Figure 2 This is an exploded three-dimensional view of an embodiment of the vehicle-mounted shock-absorbing capacitor of the present invention;

[0022] Figure 3 This is a three-dimensional exploded view of an embodiment of the vehicle-mounted shock-absorbing capacitor of the present invention from another angle;

[0023] Figure 4 This is a schematic diagram of a mounting device for a vehicle-mounted shock absorber capacitor according to an embodiment of the present invention. 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 shock absorber capacitor 300 is provided, including a capacitor body 100 and a fixing device 200 for mounting and fixing the capacitor body; the capacitor body 100 includes an aluminum shell 10, a core package encapsulated in the aluminum shell, a cover plate 11 for encapsulating the core package in the aluminum shell, and lead-out terminals 12 disposed on the cover plate; the fixing device 200 includes a support frame body 20, fixing clamps 30 disposed at both ends of the support frame body 20, a plurality of clamping springs 21 alternately disposed on the sides of the support frame body 20 for clamping the capacitor body, and a plurality of fixing pins 40 disposed on one of the fixing clamps 30; wherein, the fixing clamps 30 at both ends of the support frame body 20 are respectively used to fasten the two ends of the capacitor body 100; the plurality of clamping springs 21 alternately clamp the aluminum shell surface of the capacitor body 100; the fixing pins 40 are used to mount and fix the fixing device 200 on a circuit board.

[0029] The supporting frame body 20 has a square frame structure and a capacitor receiving space to accommodate the capacitor body. The fixing clamp 30 is roughly circular, and its inner diameter is adapted to the outer diameter of the capacitor body. After the capacitor body is accommodated in the capacitor receiving space, it is fixed by the fixing clamp 30 and the clamping spring 21, and then mounted and fixed on the circuit board by the fixing pin 40 and the lead-out terminal 12 of the capacitor body 100.

[0030] Reference Figure 2 As shown, the supporting frame body 20 includes a first side 201, a second side 202, a third side 203, and a fourth side 204. The first side 201, the second side 202, the third side 203, and the fourth side 204 are arranged together to form a through capacitor receiving space to accommodate the capacitor body. The capacitor receiving space is approximately a through square hole, and the fixing clamps 30 are disposed at both ends of the square hole.

[0031] Reference Figure 3 As shown, a first window 2010 is provided on the first side 201, and a first clamping spring piece 2011 is provided at the first window 2010. In some embodiments, the first window 2010 extends longitudinally along the support body; the first clamping spring piece 2011 extends longitudinally along the support body corresponding to the first window 2010; in some embodiments, one end of the first clamping spring piece 2011 is a fixed end to be fixed to the edge of the first window 2010; the other end of the first clamping spring piece 2011 is a free end for elastically clamping the capacitor body. In some embodiments, the first window 2010 is an upright rectangular opening, the length of the first clamping spring piece 2011 is equal to or less than the length of the rectangular opening; the width of the first clamping spring piece 2011 is less than or equal to the width of the rectangular opening; the thickness of the first clamping spring piece 2011 is less than or equal to the thickness of the first side 201. The free end extends longitudinally upward along the first window 2010 and inclined towards the capacitor receiving space. The free end and the fixed end are on different planes, and the free end is arranged in an arc-shaped plate that matches the surface of the capacitor body.

[0032] Reference Figures 2-3As shown, the second side 202 is adjacent to the first side 201. A second window 2020 is provided on the second side 202, and a second clamping spring 2021 is provided at the second window 2020. The shape of the second window 2020 is the same as that of the first window 2010, and the extending direction of the second clamping spring 2021 is opposite to that of the first clamping spring 2011. The structure of the second clamping spring 2021 is the same as that of the first clamping spring 2011, and will not be described again here.

[0033] The first side 201 is opposite to the third side 203, and the second side 202 and the fourth side 204 are opposite to each other. A third window (unlabeled) is provided on the third side 203, and a third clamping spring (unlabeled) is provided at the third window. A fourth window (unlabeled) is provided on the fourth side 204, and a fourth clamping spring (unlabeled) is provided at the fourth window. The extension direction of the third clamping spring is the same as that of the first clamping spring 2011, and the extension direction of the fourth clamping spring is the same as that of the second clamping spring 2021, thus forming an interleaved clamping layout. This improves the balance and stability of the clamped capacitor body 100, allowing the capacitor body 100 to be stably installed and fixed to the fixing device. The structures of the first clamping spring 2011, the second clamping spring 2021, the third clamping spring, and the fourth clamping spring are completely identical; for details, please refer to the description of the first clamping spring 2011, which will not be repeated here.

[0034] Reference Figure 4 As shown, in some embodiments, the free ends of the first clamping spring 2011 and the third clamping spring, as well as the free ends of the second clamping spring 2021 and the fourth clamping spring, 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, the free ends of the first clamping spring 2011, the second clamping spring 2021, the third clamping spring, and the fourth clamping spring tightly clamp the capacitor body, thereby firmly fixing the capacitor.

[0035] In the first side 201, the second side 202, the third side 203, and the fourth side 204, an arc-shaped ridge 22 is provided at the connection point of every two adjacent sides, and the arc-shaped ridge 22 forms an arc-shaped groove on the inner wall of the receiving space. This arrangement can improve the shock absorption performance of the main body and stably place the capacitor body in the receiving space.

[0036] Reference Figures 2-4As shown, in some embodiments, the first side 201, the second side 202, the third side 203, and the fourth side 204 have the same shape, all being rectangular. In some embodiments, the first side 201, the second side 202, the third side 203, and the fourth side 204 have the same thickness. In some embodiments, two opposing sides (such as the first side 201 and the third side 203, and the second side 202 and the fourth side 204) are arranged parallel to each other, and the distance between the two opposing sides is equal to the outer diameter of the capacitor body placed in the receiving space. In some embodiments, the distance between the two opposing sides is greater than the outer diameter of the capacitor body placed in the receiving space. This arrangement makes the clamping of the capacitor body more balanced and stable.

[0037] Reference Figure 3 , Figure 4 As shown, the fixing clamp 30 includes a circular body and an elastic portion 301 protruding outward from the circular body; wherein, there is a gap between the circular body and the support frame body 20; the fixing clamp 30 is connected to the support frame body 20 through the elastic portion. 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 is provided between adjacent arc-shaped spring pieces 302; in some embodiments, the four arc-shaped spring pieces 302 correspond to the first side 201, the second side 202, the third side 203, and the fourth side 204 of the support frame body 20, respectively. In some embodiments, the four arc-shaped spring pieces 302 have equal arc lengths and the same curvature; in some embodiments, the arc-shaped ridge 22 of the support frame body 20 extends to connect to the elastic portion of the fixing clamp 30; in some embodiments, the elastic portion 301 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 22 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.

[0038] Reference Figure 1 , Figure 4As 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 12 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 12 of the capacitor. In this embodiment, there are four fixed pins 40, which are respectively disposed on the four elastic parts 302 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 100 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.

[0039] The present invention uses two fixing clamps 30 to fix the two ends of the capacitor body 100 respectively, and uses clamping springs 21 to clamp and reinforce the capacitor, thereby stably and evenly installing the capacitor body on the fixing device. Furthermore, the capacitor can be stably fixed on the circuit board through the fixing pins 40 on one of the fixing clamps 30 and the lead-out terminals on the capacitor body.

[0040] 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.

[0041] 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.

[0042] 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 shock absorber capacitor, characterized in that: The device includes a capacitor body and a mounting device for mounting and fixing the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, a cover plate for encapsulating the core package within the aluminum shell, and lead-out terminals disposed on the cover plate. The mounting device includes a support frame body, fixing clamps disposed at both ends of the support frame body, a plurality of clamping springs alternately disposed on the sides of the support frame body for clamping the capacitor body, and a plurality of fixing pins disposed on one of the fixing clamps. The fixing clamps at both ends of the support frame body are used to fasten the two ends of the capacitor body, respectively. The plurality of clamping springs alternately clamp the surface of the aluminum shell of the capacitor body. The fixing pins are used to mount and fix the mounting device onto a circuit board.

2. The vehicle-mounted shock absorber capacitor as described in claim 1, characterized in that: The main body of the support frame has a square frame structure and is provided with a capacitor receiving space to accommodate the capacitor body.

3. The vehicle-mounted shock absorber capacitor 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 shock absorber capacitor as described in claim 1, characterized in that: The fixing clamp includes a circular body and an elastic part protruding outward from the circular body; wherein, there is a gap between the circular body and the main body of the support frame; the fixing clamp is connected to the main body of the support frame through the elastic part.

5. The vehicle-mounted shock absorber capacitor as described in claim 2, characterized in that: The main body of the support frame includes a first side, a second side, a third side, and a fourth side, which together form the capacitor housing space.

6. The vehicle-mounted shock absorber capacitor as described in claim 5, characterized in that: A first window is provided on the first side, and a first clamping spring is provided at the first window; one end of the first clamping spring is a fixed end to be fixed to the edge of the first window; the other end is a free end to be used to elastically clamp the capacitor body.

7. The vehicle-mounted shock absorber capacitor as described in claim 6, characterized in that: The second side is adjacent to the first side, and a second window is provided on the second side. A second clamping spring is provided at the second window. The extension direction of the second clamping spring is opposite to the extension direction of the first clamping spring.

8. The vehicle-mounted shock absorber capacitor as described in claim 7, characterized in that: The shape of the second window is the same as that of the first window.

9. The vehicle-mounted shock absorber capacitor as described in claim 7, characterized in that: The first side is opposite to the third side, and the second side is opposite to the fourth side; a third window is provided on the third side, and a third clamping spring is provided at the third window; a fourth window is provided on the fourth side, and a fourth clamping spring is provided at the fourth window; wherein, the extending direction of the third clamping spring is the same as the extending direction of the first clamping spring, and the extending direction of the fourth clamping spring is the same as the extending direction of the second clamping spring.

10. The vehicle-mounted shock absorber capacitor as described in claim 5, characterized in that: In the first side, the second side, the third side, and the fourth side, an arc-shaped ridge is provided at the connection between each pair of adjacent sides, and the arc-shaped ridge forms an arc-shaped groove on the inner wall of the receiving space.

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