Vehicle-mounted capacitor explosion-proof fixing device

Abstract

The utility model discloses a kind of vehicle-mounted capacitor explosion-proof fixing devices, for installing and fixing capacitor, including main part, the fixed clamp being set at both ends of main part, and multiple fixed pins respectively led out from both ends of fixed clamp;Wherein, the main part is substantially square, and main part is provided with capacitor containing space, to accommodate capacitor;The fixed clamp is substantially circular, and the inner diameter of fixed clamp is compatible with the outer diameter of capacitor;The fixed pin extends along the radial direction of fixed clamp, to be used for fixing and installing explosion-proof fixing device on circuit board.The utility model vehicle-mounted capacitor explosion-proof fixing device can stably install and fix capacitor on circuit board or external equipment, prevent capacitor and vehicle body resonance from causing capacitor damage;Meanwhile, explosion-proof side baffle is provided on the side of capacitor, effectively restrict capacitor body, prevent capacitor internal explosion radiation impact, protect other devices on circuit board or external equipment.

Description

Technical Field

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

[0002] New energy vehicles commonly use 450-500VDC high-voltage aluminum electrolytic capacitors with high temperature resistance (105℃) and long lifespan (3000-5000 hours), making their explosion-proof safety crucial. Currently, the fixing method mainly relies on the mechanical clamping of the upper and lower covers of the OBC (On-Board Charger). However, during long-term vehicle operation, the fixing structure is prone to loosening due to vibration, causing resonance between the capacitor and the vehicle body. This continuous resonance applies radial vibration impact to the capacitor cells, accelerating the micro-creep of the internal electrolytic paper. Over time, the electrolytic paper shifts in the stress concentration areas at both ends, eventually causing a short circuit between the electrodes, resulting in a significant safety hazard of explosion failure.

[0003] However, the aluminum electrolytic capacitors currently used in new energy vehicles do not adequately address the issue of explosion-proof mounting. Therefore, it is necessary to conduct research and development to provide a solution to address the explosion-proof mounting problem of on-board capacitors.

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

[0005] The purpose of this utility model is to provide an explosion-proof fixing device for vehicle-mounted capacitors to solve at least one of the problems mentioned above in the background art.

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

[0007] An explosion-proof mounting device for vehicle-mounted capacitors is disclosed, comprising a main body, mounting clamps at both ends of the main body, and a plurality of mounting pins extending from the mounting clamps at both ends. The main body is generally square and has a capacitor housing space to accommodate the capacitor. The mounting clamps are generally circular, with their inner diameter matching the outer diameter of the capacitor. The mounting pins extend radially along the mounting clamps to secure the explosion-proof mounting device to a circuit board.

[0008] In some embodiments, the main body includes a bottom plate, a top plate, and two side plates; wherein the bottom plate, top plate, and two side plates together form the capacitor receiving space.

[0009] In some embodiments, the 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 main body portion.

[0010] In some embodiments, arc-shaped ridges are provided at the connection between the bottom plate and the two side plates and at the connection between the top plate and the two side plates, and the arc-shaped ridges form arc-shaped grooves on the inner wall of the capacitor receiving space.

[0011] In some embodiments, the base plate is close to the circuit board on which the capacitor is mounted, and the top plate is away from the circuit board on which the capacitor is mounted.

[0012] In some embodiments, the bottom plate, top plate, and two side plates have the same shape, all being rectangular.

[0013] In some embodiments, the thickness of the bottom plate is greater than the thickness of the top plate and the two side plates.

[0014] In some embodiments, the clamp is connected to the main body of the fixing device via the elastic portion.

[0015] In some embodiments, the circular body includes four arc-shaped spring pieces, which are on the same circle.

[0016] In some embodiments, the inner diameter of the circular body is less than or equal to the distance between the two side plates of the main body portion.

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

[0018] Compared to existing technologies, this utility model of vehicle-mounted capacitor explosion-proof fixing device can stably and firmly install and fix the capacitor on the circuit board or external equipment, preventing the capacitor from resonating with the vehicle body and causing premature damage to the capacitor; at the same time, an explosion-proof side partition is provided on the side of the capacitor to effectively restrain the capacitor body, prevent the capacitor from exploding and radiating impact, and protect other components on the circuit board or external equipment. 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 explosion-proof fixing device of the present invention;

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

[0023] Figure 4 This is a three-dimensional schematic diagram of the vehicle-mounted capacitor explosion-proof fixing device after the capacitor is installed according to an embodiment of the present invention;

[0024] Figure 5 yes Figure 4 A schematic diagram of its breakdown. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] Reference Figures 1-4 As shown in the figure, as an embodiment of the present invention, a vehicle-mounted capacitor explosion-proof fixing device 200 is provided for installing and fixing a capacitor 100. The vehicle-mounted capacitor explosion-proof fixing device 200 includes: a main body 20, fixing clamps 30 disposed at both ends of the main body 20, and a plurality of fixing pins 40 respectively led out from the fixing clamps 30 at both ends; wherein, the main body 20 is generally square, and the main body 20 is provided with a capacitor receiving space 201 to accommodate the capacitor 100; the fixing clamps 30 are generally circular, and the inner diameter of the fixing clamps 30 is adapted to the outer diameter of the capacitor 100; the fixing pins 40 extend radially along the fixing clamps 30 to fix the explosion-proof fixing device 200 on a circuit board; after the capacitor 100 is accommodated in the capacitor receiving space 201, the two ends of the capacitor 100 are fastened by the fixing clamps 30 to fix the capacitor 100, and the fixing pins 40 led out from the fixing clamps 30 at both ends are used to install and fix it on the circuit board.

[0030] Reference Figure 2 , Figures 3-5As shown, the main body 20 includes a base plate 202, a top plate 203, and two side plates 204, which together form the capacitor receiving space 201. Arc-shaped ridges 205 are provided at the connections between the base plate 202 and the two side plates 204, and at the connections between the top plate 203 and the two side plates 204. These arc-shaped ridges 205 form arc-shaped grooves 206 on the inner wall of the capacitor receiving space 202. This arrangement improves the shock absorption performance of the main body 20 and allows the capacitor 100 to be stably placed within the capacitor receiving space 201. In some embodiments, the base plate 202 is close to the circuit board on which the capacitor is mounted, and the top plate 203 is away from the circuit board. In some embodiments, the base plate 202, top plate 203, and two side plates 204 have the same shape, all being rectangular. In some embodiments, the thickness of the base plate 202 is greater than the thickness of the top plate 203 and the two side plates 204. In some embodiments, the two side plates 204 are arranged parallel to each other, and the distance between the two side plates 204 is equal to the outer diameter of the capacitor 100 placed in the capacitor receiving space 201. In some embodiments, the bottom plate 202 and the top plate 203 are parallel to each other, and the distance between the bottom plate 202 and the top plate 203 is equal to the outer diameter of the capacitor 100 placed in the capacitor receiving space 201. In some embodiments, the distance between the two side plates 204 and the distance between the bottom plate 202 and the top plate 203 are equal, and equal to the outer diameter of the capacitor 100 placed in the capacitor receiving space 201. In some embodiments, the distance between the top plate 203 and the bottom plate 202 is equal to the outer diameter of the capacitor 100 placed in the capacitor receiving space 202, and the distance between the two side plates 204 is greater than or equal to the distance between the bottom plate 202 and the top plate 203. By setting the top plate 203, the bottom plate 202 and the two side plates 204, explosion-proof side partitions are formed on the side of the capacitor 100, which effectively restrains the capacitor body, prevents the capacitor from exploding and radiating impact, and protects other components on the circuit board.

[0031] Reference Figures 1-3As shown, the clamp 30 includes a circular body 301 and an elastic portion 302 protruding outward from the circular body 301; wherein, there is a gap between the circular body 301 and the main body portion 20 of the fixing device; the clamp 30 is connected to the main body portion 20 of the fixing device through the elastic portion 302. In some embodiments, the circular body 301 includes four arc-shaped spring pieces 3010, the four arc-shaped spring pieces 3010 are on the same circle, and the elastic portion 302 is provided between two adjacent arc-shaped spring pieces 3010; in some embodiments, the four arc-shaped spring pieces 3010 respectively correspond to the bottom plate 202, the top plate 203, and the two side plates 204 of the main body portion 20. In some embodiments, the four arc-shaped spring pieces 3010 have equal arc lengths and the same curvature. In some embodiments, the arc-shaped ridge 205 of the main body 20 extends to form the elastic portion 302 of the 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 205 on the inner wall of the capacitor receiving space 201, 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 301 is less than or equal to the distance between the two side plates 204 of the main body 20 or the distance between the top plate 203 and the bottom plate 202. By setting the structure of the clamp 30 in this way, the two ends of the capacitor 100 can be fixed well, the capacitor body can be stably placed in the receiving space, and the overall fastening effect can be improved.

[0032] Reference Figure 3 , Figure 4 As shown, the fixing pins 40 are disposed on two elastic portions 302 of the clamp 30 adjacent to the base plate 202 of the main body 20, and the fixing pins 40 extend in a direction perpendicular to the base plate 202. In some embodiments, the fixing pins 40 are formed by a U-shaped bottom cutout of the elastic portion 302, that is, after the fixing pins 40 are bent, the U-shaped bottom of the elastic portion 302 forms a complete arc without gaps. In some embodiments, the fixing pins 40 are inclined inward, and the plane on which the fixing pins 40 are located intersects with the two sides of the main body; it should be noted that the intersection here can be understood as the plane on which the fixing pins are located being in a non-parallel state with the two sides of the main body.

[0033] 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.

[0034] 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.

[0035] Furthermore, the scope of this invention is not intended to be limited to the specific embodiments of the processes, machines, manufactures, material compositions, means, methods, and steps described in the specification. Those skilled in the art will readily understand that existing or later-developed disclosures, processes, machines, manufactures, material compositions, means, methods, or steps that perform substantially the same function as the corresponding embodiments described herein or obtain substantially the same results as the embodiments described herein can be utilized. Therefore, the appended claims are intended to include such processes, machines, manufactures, material compositions, means, methods, or steps within their scope.

Claims

1. A vehicle-mounted capacitor explosion-proof fixing device for installing and fixing capacitors, characterized in that: The device includes a main body, fixing clamps at both ends of the main body, and multiple fixing pins extending from the fixing clamps at both ends. The main body is generally square and has a capacitor housing space to accommodate a capacitor. The fixing clamps are generally circular and their inner diameter matches the outer diameter of the capacitor. The fixing pins extend radially along the fixing clamps to secure the explosion-proof device to a circuit board.

2. The vehicle-mounted capacitor explosion-proof fixing device as described in claim 1, characterized in that: The main body includes a bottom plate, a top plate, and two side plates; wherein the bottom plate, top plate, and two side plates together form the capacitor housing space.

3. The vehicle-mounted capacitor explosion-proof fixing device as described in claim 2, characterized in that: The 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 main body portion.

4. The vehicle-mounted capacitor explosion-proof fixing device as described in claim 2, characterized in that: Arc-shaped ridges are provided at the connection points between the bottom plate and the two side plates, and at the connection points between the top plate and the two side plates. The arc-shaped ridges form arc-shaped grooves on the inner wall of the capacitor receiving space.

5. The explosion-proof fixing device for vehicle-mounted capacitors as described in claim 2, characterized in that: The base plate is close to the circuit board on which the capacitor is mounted, while the top plate is far away from the circuit board on which the capacitor is mounted.

6. The explosion-proof fixing device for vehicle-mounted capacitors as described in claim 2, characterized in that: The bottom plate, top plate, and two side plates are all rectangular in shape.

7. The explosion-proof fixing device for vehicle-mounted capacitors as described in claim 2, characterized in that: The thickness of the bottom plate is greater than that of the top plate and the two side plates.

8. The vehicle-mounted capacitor explosion-proof fixing device as described in claim 3, characterized in that: The clamp is connected to the main body through the elastic part.

9. The explosion-proof fixing device for vehicle-mounted capacitors as described in claim 8, characterized in that: The circular body includes four arc-shaped spring pieces, which are on the same circle.

10. The explosion-proof fixing device for vehicle-mounted capacitors as described in claim 9, characterized in that: The inner diameter of the circular body is less than or equal to the distance between the two side plates of the main body.

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