A vehicle-mounted capacitor aluminum shell

Abstract

The application belongs to the technical field of capacitors, and discloses a vehicle-mounted capacitor aluminum shell, which comprises an aluminum shell body, positive and negative terminals installed on the aluminum shell body, and a metal cover plate for packaging a core into the aluminum shell body, the upper end of the aluminum shell body is provided with a sealing ring, the bottom surface of the sealing ring is provided with a plurality of fixing holes arranged in a circumferential array, a plurality of clamping blocks are arranged in the fixing holes, the upper surfaces of the clamping blocks are all fixed with fixing pieces, and the clamping blocks are all provided with fixing screws for fixing the fixing pieces. The application has the effect of reducing the difficulty of installing the fixing pieces by workers.

Description

Technical Field

[0001] This utility model relates to the field of capacitor technology, and in particular to an aluminum shell for a vehicle-mounted capacitor. Background Technology

[0002] Currently, aluminum electrolytic capacitors generally consist of a core package made of positive and negative aluminum foil and electrolytic paper, a cylindrical aluminum shell, and a sealing cover with positive and negative terminals. The cover has lead-out holes for the positive and negative terminals, which are then installed onto the cover through these holes. In use, the positive and negative terminals are soldered to a circuit board, thus fixing the aluminum electrolytic capacitor to the circuit board. However, this type of aluminum electrolytic capacitor is only suitable for small-sized applications in relatively stable environments. For large-sized aluminum electrolytic capacitors or those used in complex environments with shaking or vibration, simply soldering the positive and negative terminals to the circuit board can easily cause the capacitor to shake. Prolonged shaking can eventually lead to loosening or damage of the positive and negative terminals, thus affecting the lifespan of the entire product.

[0003] Chinese utility model patent CN222300468U discloses an aluminum electrolytic capacitor, comprising an aluminum shell, a core package encapsulated within the aluminum shell, and a metal cover plate for encapsulating the core package within the aluminum shell. The aluminum shell includes a cylindrical aluminum shell body and a plurality of fixing pieces disposed on the aluminum shell body. One end of the aluminum shell body has an opening, and the other end is closed, thus forming a receiving space with an opening at one end. An annular groove is formed around the aluminum shell body near the opening end. A sealing ring is formed between the annular groove and the opening of the aluminum shell body, and the plurality of fixing pieces are attached to the outer surface of the sealing ring. The metal cover plate includes a disc-shaped cover plate body and terminal assemblies disposed on the cover plate body. The cover plate body includes a circular plane and an annular band disposed around the periphery of the circular plane and perpendicular to the circular plane. This utility model of an automotive aluminum electrolytic capacitor has strong shock resistance and can adapt to complex application environments with various bumps and vibrations.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: The device improves the capacitor's shock resistance through multiple fixing plates that are mutually fixed to the sealing ring. When installing the fixing plates, operators must press them firmly against the sealing ring and use fixing screws to stabilize them. In actual use, operators must simultaneously press the fixing plates and connect the fixing screws to the sealing ring, resulting in high operational difficulty and a poor user experience. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an aluminum shell for a vehicle-mounted capacitor.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an aluminum shell for a vehicle-mounted capacitor, comprising an aluminum shell body, positive and negative terminals mounted on the aluminum shell body, and a metal cover plate for encapsulating the core package within the aluminum shell body. A sealing ring is installed at the upper end of the aluminum shell body, and a plurality of fixing holes arranged in a circumferential array are opened on the bottom surface of the sealing ring. A snap-fit ​​block is provided in several of the fixing holes, and a fixing piece is fixed on the upper surface of each of the snap-fit ​​blocks. A fixing screw for fixing the fixing piece is provided on each of the snap-fit ​​blocks.

[0007] By adopting the above technical solution, when workers need to install capacitors, they only need to connect multiple snap-fit ​​blocks to the fixing holes as needed to keep the snap-fit ​​blocks stable, thus initially stabilizing the fixing plate under the action of the snap-fit ​​blocks. Furthermore, workers only need to pass the fixing screw through the positioning hole and connect it to the sealing ring to keep the fixing plate stable under the action of the fixing screw. During installation, workers do not need to continuously apply a force to keep the fixing plate stable, thereby reducing the difficulty of installing the fixing screw and improving the user experience.

[0008] Furthermore, the snap-fit ​​block includes an inclined plate disposed in a fixing hole, a connecting plate fixed on the bottom surface of the inclined plate, and a fixing plate fixed on the upper surface of the connecting plate, wherein the upper surface of the fixing plate is fixed to the fixing piece.

[0009] By adopting the above technical solution, when the worker needs to install the fixing plate, the worker needs to connect the inclined plate with one of the fixing holes so that the inclined plate can press against the inner wall of the fixing hole, thereby making the fixing plate, connecting plate and inclined plate cooperate with each other and remain stable, thus making the fixing plate connected with the snap-fit ​​block initially stable, thereby reducing the difficulty for the worker to fix the fixing plate later.

[0010] Furthermore, the fixing piece includes a mounting block fixed to the upper surface of the fixing plate, an arc-shaped block fixed to the upper surface of the mounting block, and a fixing rod fixed to the upper surface of the arc-shaped block.

[0011] By adopting the above technical solution, when workers install capacitors, they need to mount the capacitors onto the circuit board. At this time, by inserting and fixing the fixing rod into the circuit board, the fixing plate can be inserted and fixed onto the external circuit board, thereby firmly fixing the capacitor onto the circuit board, preventing the capacitor from shaking, and thus improving the stability of the capacitor.

[0012] Furthermore, the side wall of the mounting block is provided with positioning holes for positioning the fixing screws.

[0013] By adopting the above technical solution, when the staff needs to fix the fixing plate, the staff needs to pass the fixing screw through the positioning hole and turn the fixing screw to connect the fixing screw with the sealing ring, so that the fixing plate remains stable under the action of the fixing screw.

[0014] Furthermore, an arc-shaped ring is fixed to the upper end of the side wall of the sealing ring, and a receiving groove for accommodating the arc-shaped ring is provided on the side wall of the mounting block.

[0015] By adopting the above technical solution, when the inclined plate and the fixing hole are connected to each other, the arc ring is connected to the receiving groove, which can block the mounting block, thereby further improving the stability of the fixing piece at this time.

[0016] Furthermore, the width of the inclined plate is equal to the width of the fixing hole.

[0017] Furthermore, the snap-fit ​​block is a snap-fit ​​block made of aluminum alloy.

[0018] By adopting the above technical solution, aluminum alloy is lightweight and has good thermal conductivity. The clip block made of aluminum alloy is lightweight and has good structural strength, while also having good thermal conductivity, thereby effectively reducing the probability of overheating of the components inside the capacitor and thus improving the user experience of the capacitor.

[0019] Furthermore, a silicone sheet is provided on the side wall of the fixing rod to improve the fixing effect of the fixing rod.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this application, when workers need to install capacitors, they need to connect multiple snap-fit ​​blocks to the fixing holes as needed to stabilize the snap-fit ​​blocks, thereby initially stabilizing the fixing plate under the action of the snap-fit ​​blocks. Furthermore, workers only need to pass the fixing screw through the positioning hole and connect it to the sealing ring to stabilize the fixing plate under the action of the fixing screw. During installation, workers do not need to continuously apply a force to stabilize the fixing plate, thus reducing the difficulty of installing the fixing screw and improving the user experience.

[0022] 2. In this application, when the worker needs to install the fixing plate, the worker needs to connect the inclined plate with one of the fixing holes so that the inclined plate can press against the inner wall of the fixing hole, thereby making the fixing plate, connecting plate and inclined plate cooperate with each other and remain stable, thus making the fixing plate connected with the snap-fit ​​block initially stable, thereby reducing the difficulty for the worker to fix the fixing plate later.

[0023] 3. In this application, when the worker installs the capacitor, the worker needs to mount the capacitor onto the circuit board. At this time, by inserting and fixing the fixing rod into the circuit board, the fixing plate can be inserted and fixed onto the external circuit board, thereby firmly fixing the capacitor onto the circuit board, preventing the capacitor from shaking, and thus improving the stability of the capacitor. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the arc ring and its connection structure according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the receiving groove and its connection structure according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the fixing piece and its connection structure according to an embodiment of the present invention.

[0028] In the diagram: 1. Aluminum shell body; 11. Positive and negative terminals; 2. Metal cover plate; 21. Sealing ring; 3. Fixing hole; 4. Snap-fit ​​block; 41. Slanted plate; 42. Connecting plate; 43. Fixing plate; 5. Fixing piece; 51. Mounting block; 52. Arc-shaped block; 53. Fixing rod; 6. Fixing screw; 61. Positioning hole; 7. Arc-shaped ring; 71. Receiving groove; 8. Silicone sheet. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] like Figure 1-4 As shown in the illustration, this application discloses an aluminum shell for a vehicle-mounted capacitor, comprising an aluminum shell body 1, positive and negative terminals 11, a metal cover plate 2, a sealing ring 21, snap-fit ​​blocks 4, fixing pieces 5, fixing screws 6, an arc ring 7, and a silicone sheet 8. The positive and negative terminals 11 are mounted on the aluminum shell body 1. The metal cover plate 2 is a circular plate structure, disposed on the aluminum shell body 1, and is used to encapsulate the core package within the aluminum shell body 1. The sealing ring 21 is an annular plate structure, mounted on the upper end of the aluminum shell body 1, and its bottom surface has multiple fixing holes 3 arranged in a circumferential array. Multiple fixing screws 6 are provided and sequentially disposed on multiple snap-fit ​​blocks 4, used to fix the fixing pieces 5.

[0031] The sealing ring 21 has multiple fixing holes 3 arranged in a circular array on its bottom surface. Multiple snap-fit ​​blocks 4 are arranged sequentially within these fixing holes 3. Each snap-fit ​​block 4 includes an inclined plate 41, a connecting plate 42, and a fixing plate 43. The inclined plate 41 is an inclined plate structure positioned within the fixing holes 3. The connecting plate 42 is a rectangular plate structure fixed to the bottom surface of the inclined plate 41. The fixing plate 43 is a rectangular plate structure fixed to the upper surface of the connecting plate 42, and the upper surface of the fixing plate 43 is mutually fixed to the fixing piece 5.

[0032] When the worker needs to install the fixing piece 5, the worker needs to connect the inclined plate 41 with one of the fixing holes 3 so that the inclined plate 41 can press against the inner wall of the fixing hole 3, thereby making the fixing plate 43, the connecting plate 42 and the inclined plate 41 cooperate with each other and remain stable, thus making the fixing piece 5 connected with the snap-fit ​​block 4 initially stable, thereby reducing the difficulty for the worker to fix the fixing piece 5 in the future.

[0033] Multiple fixing pieces 5 are provided and sequentially disposed on the upper surfaces of multiple snap-fit ​​blocks 4. The fixing pieces 5 include mounting blocks 51, arc-shaped blocks 52, and fixing rods 53. The mounting block 51 is a rectangular block structure and is fixed to the upper surface of the fixing plate 43. The arc-shaped block 52 is a block structure and is fixed to the upper surface of the mounting block 51. The fixing rod 53 is a round rod structure and is fixed to the upper surface of the arc-shaped block 52.

[0034] When installing the capacitor, the operator needs to mount it onto the circuit board. At this time, by inserting and fixing the fixing rod 53 into the circuit board, the fixing piece 5 can be inserted and fixed onto the external circuit board, thus firmly fixing the capacitor onto the circuit board, preventing the capacitor from shaking, and thereby improving the stability of the capacitor.

[0035] To reduce the difficulty for workers installing the fixing screws 6, the side wall of the mounting block 51 is provided with positioning holes 61 for positioning the fixing screws 6. When workers need to fix the fixing piece 5, they need to pass the fixing screws 6 through the positioning holes 61 and turn the fixing screws 6 to connect the fixing screws 6 with the sealing ring 21, thereby making the fixing piece 5 stable under the action of the fixing screws 6.

[0036] The arc-shaped ring 7 is fixed to the upper end of the side wall of the sealing ring 21, and the side wall of the mounting block 51 is provided with a receiving groove 71 for accommodating the arc-shaped ring 7. When the inclined plate 41 is connected to the fixing hole 3, the arc-shaped ring 7 is connected to the receiving groove 71, which allows the arc-shaped ring 7 to block the mounting block 51, thereby further improving the stability of the fixing piece 5 at this time.

[0037] To improve the stability of the inclined plate 41, the width of the inclined plate 41 is equal to the width of the fixing hole 3.

[0038] To improve the user experience of the capacitor, the latch block 4 is made of aluminum alloy. Aluminum alloy is lightweight and has good thermal conductivity. The latch block 4, made of aluminum alloy, is lightweight yet structurally strong, and also has good thermal conductivity, thus effectively reducing the probability of overheating of the components inside the capacitor, thereby improving the user experience.

[0039] The silicone sheet 8 is a circular sheet structure. The silicone sheet 8 is set on the side wall of the fixing rod 53 to improve the fixing effect of the fixing rod 53.

[0040] The working principle of the aluminum shell for a vehicle-mounted capacitor in this embodiment is as follows: When the operator needs to install the capacitor, they need to connect multiple snap-fit ​​blocks 4 to the fixing holes 3 as needed. This stabilizes the snap-fit ​​blocks 4, thus initially stabilizing the fixing plate 5 under the action of the snap-fit ​​blocks 4. Furthermore, the operator only needs to pass the fixing screw 6 through the positioning hole 61 and connect it to the sealing ring 21. This stabilizes the fixing plate 5 under the action of the fixing screw 6. During installation, the operator does not need to continuously apply a force to stabilize the fixing plate 5, thereby reducing the difficulty of installing the fixing screw 6 and improving the user experience.

[0041] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An aluminum casing for a vehicle-mounted capacitor, comprising an aluminum casing body (1), positive and negative terminals (11) mounted on the aluminum casing body (1), and a metal cover plate (2) for encapsulating the core package within the aluminum casing body (1), characterized in that: A sealing ring (21) is installed at the upper end of the aluminum shell body (1). The bottom surface of the sealing ring (21) is provided with a plurality of fixing holes (3) arranged in a circular array. A snap-fit ​​block (4) is provided in several of the fixing holes (3). A fixing piece (5) is fixed on the upper surface of the plurality of snap-fit ​​blocks (4). A fixing screw (6) for fixing the fixing piece (5) is provided on the plurality of snap-fit ​​blocks (4). The snap-fit ​​block (4) includes an inclined plate (41) disposed in the fixing hole (3), a connecting plate (42) fixed on the bottom surface of the inclined plate (41), and a fixing plate (43) fixed on the upper surface of the connecting plate (42). The upper surface of the fixing plate (43) is fixed to the fixing piece (5). The fixing piece (5) includes a mounting block (51) fixed to the upper surface of the fixing plate (43), an arc-shaped block (52) fixed to the upper surface of the mounting block (51), and a fixing rod (53) fixed to the upper surface of the arc-shaped block (52).

2. The aluminum shell for a vehicle-mounted capacitor according to claim 1, characterized in that: The mounting block (51) has a positioning hole (61) on its side wall for positioning the fixing screw (6).

3. The aluminum shell for a vehicle-mounted capacitor according to claim 2, characterized in that: An arc-shaped ring (7) is fixed to the upper end of the side wall of the sealing ring (21), and a receiving groove (71) for accommodating the arc-shaped ring (7) is provided on the side wall of the mounting block (51).

4. The aluminum shell for a vehicle-mounted capacitor according to claim 3, characterized in that: The width of the inclined plate (41) is equal to the width of the fixing hole (3).

5. The aluminum shell for a vehicle-mounted capacitor according to claim 4, characterized in that: The snap-fit ​​block (4) is made of aluminum alloy.

6. The aluminum shell for a vehicle-mounted capacitor according to claim 5, characterized in that: The side wall of the fixing rod (53) is provided with a silicone sheet (8) to improve the fixing effect of the fixing rod (53).

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