Vehicle-mounted capacitor shock absorption device

Abstract

This utility model discloses a vehicle-mounted capacitor shock absorption device for mounting and fixing a capacitor. It includes a main body, fixing clamps at both ends of the main body, multiple sets of clamping springs on the side of the main body for holding the capacitor, and fixing pins on one of the fixing clamps. The fixing clamps at both ends of the main body are used to secure the two ends of the capacitor body; the multiple sets of clamping springs are used to hold the middle section of the capacitor body; and the fixing pins are used to mount and fix the shock absorption device onto a circuit board. This vehicle-mounted capacitor shock absorption device can stably and securely mount the capacitor onto the circuit board and effectively reduce vibration, preventing premature damage to the capacitor due to resonance between the capacitor and the vehicle body.

Description

Technical Field

[0001] This utility model belongs to the field of electronic device technology, and in particular relates to a vehicle-mounted capacitor shock absorption device. 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 issue of fixed vibration damping. Therefore, it is necessary to conduct research and development to provide a solution for fixing and damping 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 invention is to provide an on-board capacitor shock absorber 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 capacitor shock absorber is used to install and fix a capacitor. It includes a main body, fixing clamps at both ends of the main body, multiple sets of clamping springs on the side of the main body for holding the capacitor, and fixing pins on one of the fixing clamps. The fixing clamps at both ends of the main body are used to fasten the two ends of the capacitor body; the multiple sets of clamping springs are used to clamp the middle section of the capacitor body; and the fixing pins are used to mount and fix the shock absorber to a circuit board.

[0008] In some embodiments, the main body includes a first side, a second side, a third side, and a fourth side, which together form a through capacitor housing space.

[0009] In some embodiments, a first window is provided on the first side, and a first set of clamping springs is provided at the first window; the first set of clamping springs includes an upper clamping spring and a lower clamping spring.

[0010] In some embodiments, the upper clamping spring and the lower clamping spring extend from the upper and lower ends of the first window toward the middle of the first window, respectively.

[0011] In some embodiments, one end of the upper clamping spring is a fixed end, which is fixed to the upper edge of the first window; the other end is a free end, which is used to elastically clamp the capacitor body.

[0012] In some embodiments, one end of the lower clamping spring is a fixed end, which is fixed to the lower edge of the first window; the other end is a free end, which is used to elastically clamp the capacitor body.

[0013] In some embodiments, a gap is provided between the free end of the upper clamping spring and the free end of the lower clamping spring.

[0014] In some embodiments, the first side is opposite to the third side, and the second side is opposite to the fourth side; a second window is provided on the second side, and a second set of clamping springs is provided at the second window; a third window is provided on the third side, and a third set of clamping springs is provided at the third window; a fourth window is provided on the fourth side, and a fourth set of clamping springs is provided at the fourth window.

[0015] In some embodiments, the structure of the second set of clamping springs, the third set of clamping springs, and the fourth set of clamping springs is the same as the structure of the first set of clamping springs.

[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 capacitor shock absorption device of this utility model can stably and firmly install and fix the capacitor on the circuit board, and effectively reduce vibration, preventing the capacitor from resonating with the vehicle body and causing premature damage to the capacitor. 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 perspective view of an embodiment of the vehicle-mounted capacitor shock absorption device of the present invention;

[0021] Figure 2 This is a three-dimensional schematic diagram of an embodiment of the vehicle-mounted capacitor shock absorption device of the present invention from another angle;

[0022] Figure 3 This is a three-dimensional schematic diagram of another embodiment of the vehicle-mounted capacitor shock absorption device of the present invention from another angle;

[0023] Figure 4 This is a schematic diagram of a vehicle-mounted capacitor shock absorber with a capacitor installed according to an embodiment of the present invention;

[0024] Figure 5 This is another schematic diagram of the vehicle-mounted capacitor shock absorber with the capacitor installed, according to one embodiment of the present invention;

[0025] Figure 6 This is another schematic diagram from an angle showing the installation of a capacitor on a vehicle-mounted capacitor shock absorber according to an embodiment of the present invention. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figures 1-4 As shown in the figure, as an embodiment of the present invention, a vehicle-mounted capacitor shock absorber 200 is provided for mounting and fixing a capacitor 100. The vehicle-mounted capacitor shock absorber 200 includes: a main body 20, fixing clamps 30 disposed at both ends of the main body 20, multiple sets of clamping springs 21 disposed on the side of the main body 20 for clamping the capacitor, and fixing pins 40 disposed on one of the fixing clamps 30; wherein, the fixing clamps 30 at both ends of the main body 20 are respectively used to fasten the two ends of the capacitor body; the multiple sets of clamping springs are used to clamp the middle section of the capacitor body; and the fixing pins 40 are used to mount and fix the shock absorber 200 on a circuit board.

[0031] The main body 20 has a square frame structure and a capacitor receiving space 201 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 201, it is fixed by the fixing clamp 30 and the clamping spring, and then mounted on the circuit board by the fixing pin 40.

[0032] Reference Figure 2As shown, the main body 20 includes a first side 202, a second side 203, a third side 204, and a fourth side 205. The first side 202, the second side 203, the third side 204, and the fourth side 205 are arranged together to form a through capacitor receiving space 201 to accommodate the capacitor body. The capacitor receiving space 201 is generally a through square hole, and the fixing clamps 30 are disposed at both ends of the square hole.

[0033] Reference Figures 3-6 As shown, a first window 2020 is provided on the first side 202, and a first set of clamping springs 21 is provided at the first window 2020. In some embodiments, the first window 2020 extends longitudinally along the main body portion 20. The first set of clamping springs 21 includes an upper clamping spring 210 and a lower clamping spring 211, which extend from the upper and lower ends of the first window 2020 toward the middle of the first window 2020, respectively. Specifically, one end of the upper clamping spring 210 is a fixed end, which is fixed to the upper edge of the first window 2020; the other end is a free end, which is used to elastically clamp the capacitor body. The free end extends longitudinally downward along the first window 2020 and inclined toward the capacitor receiving space 201. One end of the lower clamping spring 211 is a fixed end, fixed to the lower edge of the first window 2020; the other end is a free end, used to elastically clamp the capacitor body; the fixed end and the free end are on different planes. The free end extends longitudinally upward along the first window 2020 and inclined towards the capacitor receiving space 201. A gap is provided between the free ends of the upper clamping spring 210 and the lower clamping spring 211; in this embodiment, after multiple experimental verifications, the size of the gap is 0.5cm-2.5cm. This setting ensures optimal fit between the upper clamping spring 210 and the lower clamping spring 211, resulting in the best clamping effect.

[0034] In some embodiments, the free end of the lower clamping spring 211 is connected to the fixed end via two progressively inward-sloping arc-shaped surfaces. In some embodiments, the free end is designed with an arc-shaped piece. In some embodiments, the thickness of the free end is less than the thickness of the fixed end.

[0035] Reference Figure 2As shown, the first side 202 is opposite to the third side 204, and the second side 203 and the fourth side 205 are opposite to each other. The second side 203 has a second window (unlabeled), and a second set of clamping spring clips (unlabeled) is disposed at the second window. The third side 204 has a third window (unlabeled), and a third set of clamping spring clips (unlabeled) is disposed at the third window. The fourth side 205 has a fourth window (unlabeled), and a fourth set of clamping spring clips (unlabeled) is disposed at the fourth window. The structures of the second set of clamping spring clips, the third set of clamping spring clips, and the fourth set of clamping spring clips are the same as the structure of the first set of clamping spring clips 21, as detailed in the first set of clamping spring clips 21, and will not be repeated here. In some embodiments, the free ends of the first set of clamping springs 21, the second set of clamping springs, the third set of clamping springs, and the fourth set of clamping springs 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 set of clamping springs 21, the second set of clamping springs, the third set of clamping springs, and the fourth set of clamping springs tightly clamp the capacitor body, thereby firmly fixing the capacitor.

[0036] Reference Figure 3 As shown, in the first side 202, the second side 203, the third side 204, and the fourth side 205, an arc-shaped ridge 12 is provided at the connection point of every two adjacent sides, and the arc-shaped ridge 12 forms an arc-shaped groove 120 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.

[0037] Reference Figure 4 As shown, in some embodiments, the first side 202, the second side 203, the third side 204, and the fourth side 205 have the same shape, all being rectangular. In some embodiments, the first side 202, the second side 203, the third side 204, and the fourth side 205 have the same thickness. In some embodiments, two opposing sides (such as the first side 202 and the third side 204, and the second side 203 and the fourth side 205) are arranged parallel to each other, and the distance between two opposing sides is equal to the outer diameter of the capacitor body placed in the receiving space. In some embodiments, the distance between two opposing sides is greater than the outer diameter of the capacitor body placed in the receiving space.

[0038] Reference Figure 5 , Figure 6As shown, the fixing clamp 30 includes a circular body 301 and an elastic portion 302 protruding outward from the circular body; wherein, there is a gap between the circular body 301 and the main body portion 20; the fixing clamp 30 is connected to the main body portion 20 through the elastic portion 302. In some embodiments, the circular body 301 includes four arc-shaped spring pieces 303, the four arc-shaped spring pieces 303 are on the same circle, and the elastic portion 302 is disposed between adjacent two arc-shaped spring pieces; in some embodiments, the four arc-shaped spring pieces correspond to the first side 202, the second side 203, the third side 204, and the fourth side 205 of the main body portion 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 12 of the main body 20 extends to connect to the elastic portion 302 of the fixing clamp 30; in some embodiments, the elastic portion 302 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.

[0039] Reference Figure 4 , Figure 5 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.

[0040] This invention uses two fixing clamps 30 to fix the two ends of the capacitor respectively, and uses a first set of clamping springs, a second set of clamping springs, a third set of clamping springs, and a fourth set of clamping springs to clamp the middle section of the capacitor body, thereby firmly installing the capacitor body on the fixing device. Furthermore, the capacitor can be stably fixed on the circuit board through the fixing pin 40 on one of the fixing clamps 30.

[0041] 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.

[0042] 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.

[0043] 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 shock absorption device for fixing and damping capacitors, characterized in that: The device includes a main body, fixing clamps at both ends of the main body, multiple sets of clamping springs on the side of the main body for holding a capacitor, and fixing pins on one of the fixing clamps; wherein, the fixing clamps at both ends of the main body are used to fasten the two ends of the capacitor body respectively; the multiple sets of clamping springs are used to hold the middle section of the capacitor body; and the fixing pins are used to mount and fix the shock absorption device on the circuit board.

2. The vehicle-mounted capacitor shock absorber as described in claim 1, characterized in that: The main body includes a first side, a second side, a third side, and a fourth side, which together form a through-hole capacitor housing space.

3. The vehicle-mounted capacitor shock absorber as described in claim 2, characterized in that: A first window is provided on the first side, and a first set of clamping springs is provided at the first window; the first set of clamping springs includes an upper clamping spring and a lower clamping spring.

4. The vehicle-mounted capacitor shock absorber as described in claim 3, characterized in that: The upper clamping spring and the lower clamping spring extend from the upper and lower ends of the first window toward the middle of the first window, respectively.

5. The vehicle-mounted capacitor shock absorber as described in claim 4, characterized in that: One end of the upper clamping spring is a fixed end, which is fixed to the upper edge of the first window; the other end is a free end, which is used to elastically clamp the capacitor body.

6. The vehicle-mounted capacitor shock absorber as described in claim 5, characterized in that: One end of the lower clamping spring is a fixed end, which is fixed to the lower edge of the first window; the other end is a free end, which is used to elastically clamp the capacitor body.

7. The vehicle-mounted capacitor shock absorber as described in claim 6, characterized in that: A gap is provided between the free end of the upper clamping spring and the free end of the lower clamping spring.

8. The vehicle-mounted capacitor shock absorber as described in claim 3, characterized in that: The first side is opposite to the third side, and the second side is opposite to the fourth side; a second window is provided on the second side, and a second set of clamping springs is provided at the second window; a third window is provided on the third side, and a third set of clamping springs is provided at the third window; a fourth window is provided on the fourth side, and a fourth set of clamping springs is provided at the fourth window.

9. The vehicle-mounted capacitor shock absorber as described in claim 8, characterized in that: The structure of the second set of clamping clips, the third set of clamping clips, and the fourth set of clamping clips is the same as that of the first set of clamping clips.

10. The vehicle-mounted capacitor shock absorber as described in claim 9, 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 every two adjacent sides, and the arc-shaped ridge forms an arc-shaped groove on the inner wall of the receiving space.

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