Vehicle-mounted capacitor fixing device

Abstract

This utility model discloses a vehicle-mounted capacitor fixing device for installing and fixing capacitors. It includes a support frame body, a capacitor fastening structure disposed at one end of the support frame body for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support frame body for holding the capacitor, and fixing pins extending from the other end of the support frame body for fixing the capacitor to a circuit board. The support frame body has a square frame structure and a capacitor receiving space for accommodating the capacitor. After the capacitor is accommodated in the capacitor receiving space, it is fixed by the capacitor fastening structure and the clamping springs, and then fixed to the circuit board by the fixing pins. This vehicle-mounted capacitor fixing device can stably and securely install and fix the capacitor to 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 fixing 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 a vehicle-mounted capacitor fixing device to solve at least one of the problems mentioned in the background art.

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

[0007] A vehicle-mounted capacitor fixing device is used to install and fix a capacitor. It includes a support frame body, a capacitor fastening structure disposed at one end of the support frame body for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support frame body for holding the capacitor, and fixing pins extending from the other end of the support frame body for fixing the capacitor to a circuit board. The support frame body has a square frame structure and a capacitor receiving space for accommodating the capacitor. After the capacitor is accommodated in the capacitor receiving space, it is fixed by the capacitor fastening structure and the clamping springs, and then fixed to the circuit board by the fixing pins.

[0008] 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.

[0009] In some embodiments, the capacitor receiving space is generally a through-hole in the shape of a square through-hole, and the capacitor fastening structure is disposed at one end of the square through-hole.

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

[0011] 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 clamping spring is provided at the second window; 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.

[0012] 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.

[0013] In some embodiments, the first side, the second side, the third side, and the fourth side have the same shape, which is a rectangle.

[0014] 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.

[0015] In some embodiments, the structures of the second clamping spring, the third clamping spring, and the fourth clamping spring are the same as the structure of the first clamping spring.

[0016] In some embodiments, the clamping ends of the first clamping spring, the second clamping spring, the third clamping spring, and the fourth clamping spring together form a circular clamping space.

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

[0018] Compared with existing technologies, the vehicle-mounted capacitor fixing 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 being damaged prematurely due to resonance between the capacitor and 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 perspective view of an embodiment of the vehicle-mounted capacitor fixing device of the present invention;

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

[0022] Figure 3 This is a perspective view of an embodiment of the present invention, showing a vehicle-mounted capacitor fixing device and a capacitor installed on the vehicle-mounted capacitor fixing device. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] Reference Figures 1-3 As shown, as an embodiment of the present invention, a vehicle-mounted capacitor fixing device 100 is provided for mounting and fixing a capacitor 200. The vehicle-mounted capacitor fixing device 100 includes a support frame body 10, a capacitor fastening structure 11 disposed at one end of the support frame body 10 for fastening the bottom end of the capacitor, a plurality of clamping springs 12 disposed on the side of the support frame body 10 for clamping the capacitor, and a fixing pin 13 extending from the other end of the support frame body 10 for fixing the capacitor onto a circuit board.

[0028] The supporting frame body 10 has a square frame structure and a capacitor receiving space 101 to accommodate the capacitor 200. The capacitor fastening structure 11 is roughly circular, and its inner diameter is adapted to the outer diameter of the capacitor 200. After the capacitor 200 is accommodated in the capacitor receiving space 101, it is fixed by the capacitor fastening structure 11 and the clamping spring 12, and is mounted and fixed on the circuit board by the fixing pin 13.

[0029] Reference Figure 2 , Figure 3 As shown, the supporting frame body 10 includes a first side 102, a second side 103, a third side 104, and a fourth side 105. The first side 102, the second side 103, the third side 104, and the fourth side 105 are gathered together to form a through capacitor receiving space 101 to accommodate the capacitor body. The capacitor receiving space 101 is generally a through square hole, and the capacitor fastening structure 11 is disposed at one end of the square hole.

[0030] Reference Figure 2As shown, a first window 1020 is provided on the first side 102, and a first clamping spring piece 12 is provided at the first window 1020. In some embodiments, the first window 1020 extends longitudinally along the support frame body 10; the first clamping spring piece 12 extends longitudinally along the support frame body 10 corresponding to the first window 1020; the first clamping spring piece 12 includes a spring piece body 120, a connecting end 121, and a clamping end 122, wherein the connecting end 121 is fixedly connected to the edge of the first window 1020, the clamping end 122 is not fixedly set, and the clamping spring piece 12 is inclined from the connecting end 121 to the clamping end 122, so that when the clamping end 122 is displaced in the lateral direction of the support frame body 10, the clamping spring piece 12 can generate elastic force. In some embodiments, the clamping end 122 and the spring piece body 120 are on different planes, and the clamping end 122 is connected to the spring piece body 120 through two progressively inwardly tapering arc-shaped inclined surfaces. In some embodiments, the clamping end 122 is designed with an arc-shaped piece. In some embodiments, the thickness of the clamping end 122 is less than the thickness of the spring body 120.

[0031] Reference Figure 3 As shown, the first side 102 is opposite to the third side 104, and the second side 103 is opposite to the fourth side 105. The second side 103 has a second window (unlabeled), and a second clamping spring (unlabeled) is located at the second window. The third side 104 has a third window (unlabeled), and a third clamping spring (unlabeled) is located at the third window. The fourth side 105 has a fourth window (unlabeled), and a fourth clamping spring (unlabeled) is located at the fourth window. The structures of the second, third, and fourth clamping springs are the same as those of the first clamping spring 12; see the first clamping spring 12 for details, which will not be repeated here. In some embodiments, the clamping ends 122 of the first clamping spring 12, the second clamping spring, the third clamping spring, 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 101, the clamping ends 122 of the first clamping spring 12, the second clamping spring, the third clamping spring, and the fourth clamping spring tightly clamp the capacitor body, thereby firmly fixing the capacitor.

[0032] In the first side 102, the second side 103, the third side 104, and the fourth side 105, an arc-shaped ridge 106 is provided at the connection point of every two adjacent sides, and the arc-shaped ridge 106 forms an arc-shaped groove 107 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.

[0033] In some embodiments, the first side 102, the second side 103, the third side 104, and the fourth side 105 have the same shape, all being rectangular. In some embodiments, the first side 102, the second side 103, the third side 104, and the fourth side 105 have the same thickness. In some embodiments, two opposing sides (such as the first side 102 and the third side 104, and the second side 103 and the fourth side 105) 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.

[0034] Reference Figures 1-3 As shown, the capacitor fastening structure 11 includes a circular body and an elastic portion 110 protruding outward from the circular body; wherein, there is a gap between the circular body and the support frame body 10; the capacitor fastening structure 11 is connected to the support frame body 10 through the elastic portion 110. In some embodiments, the circular body includes four arc-shaped spring pieces 111, the four arc-shaped spring pieces 111 are on the same circle, and the elastic portion 110 is disposed between adjacent arc-shaped spring pieces 111; in some embodiments, the four arc-shaped spring pieces 111 correspond to the first side 102, the second side 103, the third side 104, and the fourth side 105 of the support frame body 10, respectively. In some embodiments, the four arc-shaped spring pieces 111 have equal arc lengths and the same curvature. In some embodiments, the arc-shaped ridge 106 of the support frame body 10 extends to connect to the elastic portion 110 of the capacitor fastening structure 11. In some embodiments, the elastic portion 110 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 106 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 configuring the capacitor fastening structure 11 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.

[0035] Reference Figure 3As shown, there are at least two fixed pins 13, both of which are located at the end of the support frame body 10 away from the capacitor fastening structure 11. In some embodiments, the extending direction of the fixed pins 13 is perpendicular to the plane of the circular body of the capacitor fastening structure 11, or the angle between the extending direction of the fixed pins 13 and the plane of the circular body of the capacitor fastening structure 11 is greater than zero degrees. In some embodiments, the extending direction of the fixed pins 13 is the same as the extending direction of the lead terminals of the capacitor body. In some embodiments, the two fixed pins 13 are arranged diagonally, and the line connecting the two fixed pins 13 intersects the line connecting the two lead terminals of the capacitor. In this embodiment, there are four fixed pins 13, which are respectively located at the four corners of the support frame body 10, and are connected sequentially to form a square. By arranging the pins in this way, the capacitor body can be stably fixed to the external circuit board, and by directly setting the fixed pins 13 on the support frame body 10, the support frame body 10 can be stably installed, thereby more firmly fixing the capacitor.

[0036] 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.

[0037] 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.

[0038] 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 mounting device for mounting and fixing capacitors, characterized in that: The device includes a support frame body, a capacitor fastening structure disposed at one end of the support frame body for fastening the bottom end of a capacitor, a plurality of clamping springs disposed on the side of the support frame body for clamping the capacitor, and a fixing pin extending from the other end of the support frame body for fixing the capacitor onto a circuit board; wherein, the support frame body has a square frame structure and is provided with a capacitor receiving space for accommodating the capacitor; after the capacitor is accommodated in the capacitor receiving space, the capacitor is fixed by the capacitor fastening structure and the clamping springs, and is fixedly mounted onto the circuit board by the fixing pin.

2. The vehicle-mounted capacitor fixing device as described in claim 1, 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.

3. The vehicle-mounted capacitor fixing device as described in claim 2, characterized in that: The capacitor housing space is generally a through square hole, and the capacitor fastening structure is disposed at one end of the square through hole.

4. The vehicle-mounted capacitor fixing device as described in claim 2, characterized in that: A first window is provided on the first side, and a first clamping spring is provided at the first window.

5. The vehicle-mounted capacitor fixing device as described in claim 4, 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 clamping spring is provided at the second window; 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.

6. The vehicle-mounted capacitor fixing device as described in claim 2, 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.

7. The vehicle-mounted capacitor fixing device as described in claim 2, characterized in that: The first, second, third, and fourth sides have the same shape, all being rectangles.

8. The vehicle-mounted capacitor fixing 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.

9. The vehicle-mounted capacitor fixing device as described in claim 5, characterized in that: The structures of the second clamping spring, the third clamping spring, and the fourth clamping spring are the same as those of the first clamping spring.

10. The vehicle-mounted capacitor fixing device as described in claim 9, characterized in that: The clamping ends of the first, second, third, and fourth clamping pieces together form a circular clamping space.

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