Vehicle-mounted explosion-proof capacitor

Abstract

The utility model discloses a vehicle-mounted anti-explosion capacitor, including capacitor body and the capacitor anti-explosion fixing device of installation capacitor body, wherein, capacitor body includes aluminum shell, the core bag of encapsulation in aluminum shell, the apron for the core bag encapsulation in aluminum shell to set up the lead-out terminal on the apron, the anti-explosion fixing device includes the sleeve of two ends through, sets up the reinforcing rib on the sleeve surface to and is used for the multiple fixed feet of capacitor installation fixed, the inside of sleeve forms cylindrical receiving space, capacitor body places in receiving space, and is installed and fixed on the circuit board through the fixed foot and the lead-out terminal on the apron, the utility model discloses vehicle-mounted anti-explosion capacitor can install and fix capacitor stably firmly on the circuit board, prevent capacitor and the body of the car resonance and lead to damage capacitor, and through effective restraint capacitor body, prevent capacitor internal explosion radiation impact, protect other devices on the circuit board.

Description

Technical Field

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

[0002] New energy vehicles generally use 450VDC-500VDC high-voltage aluminum electrolytic capacitors with a lifespan of 105℃ and 3000-5000 hours, requiring high explosion-proof performance. Currently, aluminum electrolytic capacitors in new energy vehicles are mainly secured by the upper and lower covers of the on-board charger (OBC) box. During long-term use, loosely secured aluminum electrolytic capacitors are constantly in a state of resonance with the vehicle's movement, causing radial vibration impact on the capacitor cells, posing a significant safety hazard. Prolonged use can cause the insulating paper at both ends to vibrate and creep, eventually leading to short circuits and explosions.

[0003] However, the aluminum electrolytic capacitors currently used in new energy vehicles do not adequately address the 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 automotive aluminum electrolytic 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 explosion-proof capacitor to solve at least one of the problems mentioned in the background section.

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

[0007] An explosion-proof capacitor for vehicle mounting includes a capacitor body and an explosion-proof fixing device for mounting the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, a cover plate for encapsulating the core package within the aluminum shell, and lead-out terminals disposed on the cover plate. The explosion-proof fixing device includes a sleeve extending through both ends, reinforcing ribs disposed on the surface of the sleeve, and multiple fixing feet for mounting and fixing the capacitor. The sleeve forms a cylindrical receiving space inside, in which the capacitor body is placed and mounted and fixed to a circuit board via the fixing feet and the lead-out terminals on the cover plate.

[0008] In some embodiments, the sleeve is cylindrical, with circular openings at both ends; after the capacitor body is housed in the housing space of the sleeve, the inner surface of the sleeve is in full contact with the outer surface of the capacitor body.

[0009] In some embodiments, the inner diameter of the sleeve matches the outer diameter of the capacitor body; the height of the sleeve is less than or equal to the height of the capacitor body.

[0010] In some embodiments, the reinforcing ribs are arranged longitudinally on the surface of the sleeve.

[0011] In some embodiments, the reinforcing rib extends in a direction parallel to the central axis of the sleeve.

[0012] In some embodiments, the number of reinforcing ribs is an even number, and the even number of reinforcing ribs are symmetrically arranged on the surface of the sleeve.

[0013] In some embodiments, the number of reinforcing ribs is an odd number, and the odd number of reinforcing ribs are arranged at equal intervals on the surface of the sleeve.

[0014] In some embodiments, the surface of the capacitor cover is flush with the opening at the end of the sleeve where the fixing foot is located.

[0015] In some embodiments, the reinforcing rib is provided with a T-slot, and the fixing foot is installed in the T-slot.

[0016] In some embodiments, the fixing foot is plate-shaped, the size of the fixing foot is adapted to the T-slot, and it is movably installed in the T-slot.

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

[0018] Compared to existing technologies, this utility model of vehicle-mounted explosion-proof capacitor can stably and firmly install and fix the capacitor on the circuit board, preventing the capacitor from being damaged due to resonance with the vehicle body. It also effectively constrains the capacitor body to prevent the capacitor from exploding and radiating impact, thus protecting other components on the circuit board. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the vehicle-mounted explosion-proof capacitor of the present invention;

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

[0022] Figure 3 This is an exploded view of an embodiment of the vehicle-mounted explosion-proof capacitor of the present invention;

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

[0024] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle. 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 explosion-proof capacitor 300 is provided, including a capacitor body 200 and a capacitor explosion-proof fixing device 100 for mounting the capacitor body 200; the capacitor body 200 includes an aluminum shell 20, a core package encapsulated in the aluminum shell, a cover plate 21 for encapsulating the core package in the aluminum shell, and lead-out terminals 22 disposed on the cover plate; the explosion-proof fixing device 100 includes a sleeve 10 with both ends through it, reinforcing ribs 11 disposed on the surface of the sleeve 10, and a plurality of fixing feet 12 for mounting and fixing the capacitor; the sleeve 10 forms a cylindrical receiving space 101 inside, the capacitor body is placed in the receiving space 101, and is mounted and fixed on the circuit board by the fixing feet 12 and the lead-out terminals 22 on the cover plate 21.

[0030] Reference Figure 3 , Figure 4 As shown, the sleeve 10 is cylindrical, with circular openings at both ends. After the capacitor body 200 is housed within the receiving space 101 of the sleeve 10, the inner surface of the sleeve 10 is in full contact with the outer surface of the capacitor body 200. In some embodiments, the inner diameter of the sleeve 10 matches the outer diameter of the capacitor body 200. In some embodiments, the height of the sleeve 10 is less than or equal to the height of the capacitor body 200. The surface of the capacitor cover is flush with the opening at the end of the sleeve 10 where the fixing foot 12 is located; the end of the capacitor body 200 is flush with or extends above the opening at the other end of the sleeve 10.

[0031] The reinforcing rib 11 is longitudinally arranged on the surface of the sleeve 10; see reference Figure 1 , Figure 4 , Figure 5As shown, there are multiple reinforcing ribs 11, which are evenly distributed on the surface of the sleeve 10. Specifically, the extending direction of each reinforcing rib 11 is parallel to the central axis of the sleeve 10. It should be noted that in some embodiments, the number of reinforcing ribs 11 is even, and the even number of reinforcing ribs 11 are symmetrically distributed on the surface of the sleeve 10. (Refer to...) Figure 4 As shown, the number of reinforcing ribs 11 is odd, and the odd number of reinforcing ribs 11 are arranged at equal intervals on the surface of the sleeve 10. In some embodiments, the plurality of reinforcing ribs 11 are arranged parallel to each other.

[0032] Reference Figure 4 , Figure 5 As shown, the reinforcing rib 11 is provided with a T-slot 110, and the fixing foot 12 is installed in the T-slot 110. In some embodiments, the fixing foot 12 is plate-shaped, and its size is adapted to the T-slot 110, and it is movably installed within the T-slot 110. The fixing foot 12 is movably installed on the sleeve 10. This arrangement makes the fixing more flexible and enhances the strength of the fixing foot 12, making the fixing more reliable. (Refer to...) Figure 1 , Figure 3 , Figure 4 As shown, the extending direction of the fixed foot 12 is the same as the extending direction of the lead-out terminal 22.

[0033] In some embodiments, refer to Figure 4 , Figure 5 As shown, the T-slot 110 has a flat opening at one end and a baffle 111 at the other end. The fixing foot 12 includes a sheet-like body 120 and a prong 121 extending from one end of the sheet-like body. The width of the sheet-like body is greater than the width of the prong. The sheet-like body is completely placed within the T-slot 110, and the prong protrudes from the T-slot 110. The baffle within the T-slot 110 blocks the sheet-like body, preventing the fixing foot 12 from slipping out of the T-slot 110. Specifically, refer to... Figure 2 , Figure 4 As shown, during installation, the pin end of the fixing foot 12 is inserted into one end of the flat opening of the T-slot 110. The stop plate at the other end of the T-slot 110 blocks the plate-shaped body of the fixing foot 12, and the pin of the fixing foot 12 extends out of the T-slot 110, thereby movably installing the fixing foot 12 in the T-slot 110.

[0034] This utility model uses a sleeve 10 to place the capacitor body inside the sleeve 10, and fixes the capacitor to the circuit board by the fixing feet 12 and lead terminals that are movably installed on the sleeve 10; while being explosion-proof, it can also flexibly and reliably fix the capacitor to the circuit board or other external devices.

[0035] 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.

[0036] 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.

[0037] 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 explosion-proof capacitor, characterized in that: The device includes a capacitor body and an explosion-proof fixing device for mounting the capacitor body. The capacitor body includes an aluminum shell, a core package encapsulated within the aluminum shell, a cover plate for encapsulating the core package within the aluminum shell, and lead-out terminals disposed on the cover plate. The explosion-proof fixing device includes a sleeve extending through both ends, reinforcing ribs disposed on the surface of the sleeve, and multiple fixing feet for mounting and fixing the capacitor. The sleeve forms a cylindrical receiving space inside, in which the capacitor body is placed and mounted and fixed to a circuit board via the fixing feet and the lead-out terminals on the cover plate.

2. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The sleeve is cylindrical, with circular openings at both ends; after the capacitor body is housed in the housing space of the sleeve, the inner surface of the sleeve is in full contact with the outer surface of the capacitor body.

3. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The inner diameter of the sleeve matches the outer diameter of the capacitor body; the height of the sleeve is less than or equal to the height of the capacitor body.

4. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The reinforcing ribs are arranged longitudinally on the surface of the sleeve.

5. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The reinforcing rib extends in a direction parallel to the central axis of the sleeve.

6. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The number of reinforcing ribs is even, and the even number of reinforcing ribs are symmetrically arranged on the surface of the sleeve.

7. The vehicle-mounted explosion-proof capacitor as described in claim 1, characterized in that: The number of reinforcing ribs is odd, and the odd number of reinforcing ribs are arranged at equal intervals on the surface of the sleeve.

8. The vehicle-mounted explosion-proof capacitor as described in claim 2, characterized in that: The surface of the capacitor cover plate is flush with the opening at the end of the sleeve where the fixing foot is located.

9. The vehicle-mounted explosion-proof capacitor as described in any one of claims 1-8, characterized in that: The reinforcing rib is provided with a T-shaped groove, and the fixing foot is installed in the T-shaped groove.

10. The vehicle-mounted explosion-proof capacitor as described in claim 9, characterized in that: The fixing foot is plate-shaped, and its size is adapted to the T-slot, and it is movably installed in the T-slot.

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