Vehicle-mounted capacitor damping device

Abstract

The utility model discloses a kind of vehicle-mounted capacitor shock absorber for installing and fixing capacitor, it includes support seat, capacitor fastening structure for being set to the one end of support seat to be used for fastening capacitor bottom, a plurality of clamping spring for being set to the side of support seat and extending to the direction away from capacitor fastening structure to be used for clamping capacitor, and fixed sheet for being set to the other end of support seat, for capacitor is fixedly installed to the fixed sheet on circuit board;Wherein, the extension direction of the fixed sheet is same with the extension direction of the clamping spring.The utility model vehicle-mounted capacitor shock absorber can effectively constrain capacitor, realize the shock absorption of capacitor, prevent capacitor and vehicle body resonance lead to the damage of capacitor.

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] With the development and popularization of new energy vehicles, automotive-grade components will be used in a standardized manner. For capacitors, mandatory certification will be implemented, and manufacturers must meet the requirements to be allowed entry. Regarding the single measure of capacitor vibration safety certification, most automakers currently use adhesive bonding for reinforcement and the entire unit is compacted by the upper and lower covers of the onboard computer (OBC). Capacitor manufacturers are forced to passively meet customized sizes and heights to satisfy automakers' design requirements, and universal standard products are not widely used. This is especially true for high-voltage electrolytic capacitors used in onboard OBCs, which are manufactured with a design height that is almost perfectly matched to the OBC casing, forcing the capacitor body to be clamped in a fixed, larger space, triggering greater vibration factors. Furthermore, the core of an aluminum electrolytic capacitor is supported by electrolytic paper at both ends or one end, with the core foils lifted by the paper's creep. Excessive vibration creep will gradually break the electrolytic paper fibers, causing it to lose its insulating function and eventually leading to a short circuit and failure.

[0003] Therefore, it is necessary to conduct research and development to provide an on-board capacitor vibration damping solution that proactively addresses the problem of capacitor vibration failure.

[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 absorption device 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 damping device for mounting and fixing capacitors includes a support base, a capacitor fastening structure disposed at one end of the support base for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support base extending away from the capacitor fastening structure for clamping the capacitor, and a fixing plate extending at the other end of the support base for fixing the capacitor to a circuit board; wherein the extending direction of the fixing plate is the same as the extending direction of the clamping springs.

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

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

[0010] In some embodiments, the support base includes a first side, a second side, a third side, and a fourth side; the first side, the second side, the third side, and the fourth side are arranged together to form a through capacitor housing space to accommodate the capacitor body.

[0011] In some embodiments, a first window is provided on the first side, and a first clamping spring is provided at the first window; wherein, 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.

[0012] 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.

[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 width of the first clamping spring is less than or equal to the width of the rectangular opening; the thickness of the first clamping spring is less than or equal to the thickness of the first side surface.

[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, 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 invention can effectively constrain the capacitor, realize the shock absorption of the capacitor, and prevent the capacitor from being damaged 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 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 an embodiment of the present invention, showing an on-board capacitor damping device and a capacitor installed on the on-board capacitor damping device. 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 1-3 As shown in the figure, as an embodiment of the present invention, a vehicle-mounted capacitor shock absorber 100 is provided for mounting and fixing a capacitor 200. The vehicle-mounted capacitor shock absorber 100 includes a support base 10, a capacitor fastening structure 20 disposed at one end of the support base 10 for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support base 10 extending away from the capacitor fastening structure 20 for clamping the capacitor, and a fixing piece 30 extending at the other end of the support base 10 for fixing the capacitor to a circuit board; wherein, the extending direction of the fixing piece 30 is the same as the extending direction of the clamping springs.

[0029] The support base 10 has a square frame structure and a capacitor receiving space 101 to accommodate the capacitor 200. The capacitor fastening structure 20 is approximately 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, one end of the capacitor 200 is fastened by the capacitor fastening structure 20, while the other end is clamped and fixed by the clamping spring, thereby stably fixing the capacitor on the support base 10. The capacitor can then be mounted and fixed to a circuit board or external device through the fixing piece 30 and the capacitor lead-out terminal.

[0030] Reference Figure 2 As shown, the support base 10 includes a first side 11, a second side 12, a third side 13, and a fourth side 14. The first side 11, the second side 12, the third side 13, and the fourth side 14 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 20 is disposed at one end of the square hole.

[0031] Reference Figure 2 , Figure 3 As shown, a first window 110 is provided on the first side 11, and a first clamping spring piece 111 is provided at the first window 110; in some embodiments, the first window 110 extends longitudinally along the support base 10; in some embodiments, the first window 110 is an upright rectangular opening, the length of the first clamping spring piece 111 is equal to or less than the length of the rectangular opening; the width of the first clamping spring piece 111 is less than or equal to the width of the rectangular opening; the thickness of the first clamping spring piece 111 is less than or equal to the thickness of the first side 11.

[0032] Reference Figure 3 , Figure 4 As shown, the first clamping spring 111 extends longitudinally along the support base 10 corresponding to the first window 110. The first clamping spring 111 includes a spring body 1101, a connecting end 1102, and a clamping end 1103. The spring body 1101 is fixedly connected to the edge of the first window 110, while the clamping end 1103 is not fixedly installed. The clamping spring is designed to be inclined from the connecting end 1102 to the clamping end 1103, so that when the clamping end is displaced in the lateral direction of the support base 10, the clamping spring 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 with an arc-shaped piece, the inner surface of which is set to match the surface of the capacitor, so that the clamping end can closely contact the surface of the capacitor, making the clamping more stable and reliable. In some embodiments, the thickness of the clamping end is less than the thickness of the spring body. In another embodiment, one end of the first clamping spring 111 is a fixed end, fixed to the edge of the first window 110; the other end of the first clamping spring 111 is a free end, used to elastically clamp the capacitor. The free end extends longitudinally downward along the first window 110 and obliquely toward the capacitor receiving space 101. The free end and the fixed end are on different planes, and the free end is arranged in an arc-shaped sheet that matches the surface of the capacitor.

[0033] Reference Figures 2-4 As shown, the first side 11 is opposite to the third side 13, and the second side 12 is opposite to the fourth side 14. A second window 120 is provided on the second side 12, and a second clamping spring piece 121 is provided at the second window 120. A third window (unlabeled) is provided on the third side 13, and a third clamping spring piece 131 is provided at the third window. A fourth window (unlabeled) is provided on the fourth side 14, and a fourth clamping spring piece 141 is provided at the fourth window. The structures of the second clamping spring piece 121, the third clamping spring piece 131, and the fourth clamping spring piece 141 are the same as the structure of the first clamping spring piece 111, as detailed in the first clamping spring piece 111, and will not be repeated here. In some embodiments, the clamping ends 1103 of the first clamping spring 111, 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 of the first clamping spring 111, the second clamping spring, the third clamping spring, and the fourth clamping spring tightly clamp the capacitor body, thereby firmly fixing the capacitor.

[0034] In the first side 11, the second side 12, the third side 13, and the fourth side 14, an arc-shaped ridge 150 is provided at the connection point of every two adjacent sides, and the arc-shaped ridge 150 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 at the same time, it can stably place the capacitor body in the receiving space.

[0035] Reference Figure 3 As shown, in some embodiments, the first side 11, the second side 12, the third side 13, and the fourth side 14 have the same shape, all being rectangular. In some embodiments, the first side 11, the second side 12, the third side 13, and the fourth side 14 have the same thickness. In some embodiments, two opposing sides (such as the first side 11 and the third side 13, the second side 12 and the fourth side 14) are arranged parallel to each other, and the distance between two opposing sides is equal to the outer diameter of the capacitor placed in the receiving space. In some embodiments, the distance between two opposing sides is greater than the outer diameter of the capacitor placed in the receiving space.

[0036] Reference Figure 1 , Figure 3 , Figure 4As shown, the capacitor fastening structure 20 includes a circular body and an elastic portion 202 protruding outward from the circular body 201; wherein, there is a gap between the circular body and the support base 10; the capacitor fastening structure 20 is connected to the support base 10 through the elastic portion. In some embodiments, the circular body includes four arc-shaped spring pieces 203, the four arc-shaped spring pieces 203 are on the same circle, and the elastic portion 202 is disposed between adjacent arc-shaped spring pieces 203; in some embodiments, the four arc-shaped spring pieces 203 correspond to the first side 11, the second side 12, the third side 13, and the fourth side 14 of the support base 10, respectively. In some embodiments, the four arc-shaped spring pieces 203 have equal arc lengths and the same curvature; in some embodiments, the arc-shaped ridge 15 of the support base 10 extends to connect to the elastic portion of the capacitor fastening structure 20; 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 15 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 20 in this way, the capacitor can be well fixed, the capacitor body can be stably placed in the receiving space, and the overall fastening effect can be improved.

[0037] Reference Figure 3 , Figure 4 As shown, the fixing piece 30 is generally T-shaped, including a guide portion 31 and a reinforcing portion 32; wherein the width of the guide portion 31 is smaller than the width of the reinforcing portion 32, thereby making the fixation more robust and secure. There are at least two fixing pieces 30, both of which are disposed at the end of the support base 10 away from the capacitor fastening structure 20; in some embodiments, the extending direction of the fixing piece 30 is perpendicular to the plane of the circular body of the capacitor fastening structure 20, or the angle between the extending direction of the fixing piece 30 and the plane of the circular body of the capacitor fastening structure 20 is greater than zero degrees. In some embodiments, the extending direction of the fixing piece 30 is the same as the extending direction of the capacitor's lead-out terminals. In some embodiments, the two fixing pieces 30 are arranged diagonally, and the line connecting the two fixing pieces 30 intersects the line connecting the two lead-out terminals of the capacitor. In this embodiment, there are four fixing pieces 30, which are respectively disposed at the four corners of the support base 10, and the four fixing pieces 30 are connected in sequence to form a square. By setting the pins in this way, the capacitor body can be stably fixed on the external circuit board, and the fixing plate 30 can be directly set on the support base 10, so that the support base 10 can be stably installed, thereby fixing the capacitor more firmly.

[0038] 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.

[0039] 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.

[0040] 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 damping device for mounting a capacitor, characterized by: The device includes a support base, a capacitor fastening structure disposed at one end of the support base for fastening the bottom end of the capacitor, a plurality of clamping springs disposed on the side of the support base extending away from the capacitor fastening structure for clamping the capacitor, and a fixing piece extending at the other end of the support base for fixing the capacitor to a circuit board; wherein the extending direction of the fixing piece is the same as the extending direction of the clamping springs.

2. The vehicle-mounted capacitor damping device as described in claim 1, characterized in that: The support base has a square frame structure and is provided with a capacitor receiving space to accommodate the capacitor.

3. The vehicle-mounted capacitor damping device as described in claim 1, characterized in that: The capacitor fastening structure is roughly circular, and the inner diameter of the capacitor fastening structure is adapted to the outer diameter of the capacitor.

4. The vehicle-mounted capacitor damping device as described in claim 1, characterized in that: The support base includes a first side, a second side, a third side, and a fourth side; the first side, the second side, the third side, and the fourth side together form a through capacitor housing space to accommodate the capacitor body.

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

6. The vehicle-mounted capacitor shock absorption 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.

7. The vehicle-mounted capacitor damping device as described in claim 4, characterized in that: The first, second, third, and fourth sides have the same shape, all being rectangles.

8. The vehicle-mounted capacitor damping device as described in claim 5, characterized in that: The width of the first clamping spring is less than or equal to the width of the rectangular opening; the thickness of the first clamping spring is less than or equal to the thickness of the first side.

9. The vehicle-mounted capacitor damping device as described in claim 6, 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 damping device 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.

Images