Novel capacitor assembly structure

The design of the horizontal snap-fit ​​connection mechanism and positioning block solves the problems of capacitor space occupation and welding connection, realizing stable and efficient capacitor installation, adapting to applications in confined spaces and improving system reliability.

CN224153265UActive Publication Date: 2026-04-21YIKAIBIN AUTOMOBILE INTELLIGENT CONTROL SYSTEM (NINGBO) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIKAIBIN AUTOMOBILE INTELLIGENT CONTROL SYSTEM (NINGBO) CO LTD
Filing Date
2025-05-13
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The traditional packaging process for large-capacity capacitors results in their large physical size, which takes up a lot of space. Furthermore, the welding connection method affects production efficiency and reliability, and the traditional fixing method is prone to loosening and causing failure under vibration conditions.

Method used

A horizontal snap-fit ​​connection mechanism is adopted, which uses an interference fit to fix the capacitor to the elastic snap-fit ​​plate inside the housing. Combined with positioning blocks and limit plates, the capacitor can be stably installed and fixed, avoiding welding and reducing height requirements.

Benefits of technology

This enables stable horizontal installation of capacitors, reduces space occupation, improves assembly efficiency and reliability, prevents vibration-induced failures, and simplifies process and material requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the power supply related technical field, and discloses a novel capacitor assembling structure comprising a housing, a capacitor and a Pi n pin are arranged in the housing, a buckle connecting mechanism used for fixedly installing the capacitor is arranged in the housing, and the buckle connecting mechanism and the capacitor are connected in an interference fit mode; the buckle connecting mechanism comprises a plurality of elastic buckle clamping plates which are arranged on the inner wall of the shell and matched with one another, and elastic chucks are arranged at the top ends of every two opposite elastic buckle clamping plates. According to the utility model, through the arrangement of the buckle connecting mechanism, the plurality of elastic buckle clamping plates cooperate with each other to horizontally clamp the capacitor, so that horizontal installation of the capacitor is realized, the diameter and the height of the capacitor are converted, the requirement for the height of the shell is reduced, the capacitor can be installed in the shell in advance, and the cost is reduced. And the capacitor can be clamped and fixed without adding extra working procedures and materials, and the condition that the assembling efficiency is influenced by fixing the capacitor and a Pi n pin by adopting a welding mode at present is also avoided.
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Description

Technical Field

[0001] This utility model relates to the field of power supply technology, specifically a new capacitor assembly structure. Background Technology

[0002] With the rapid development of automotive electronics technology, vehicle controllers, as core components, are evolving towards miniaturization, integration, and high reliability. However, the large-capacity capacitors commonly used in existing controllers are limited by traditional packaging processes, resulting in the following technical bottlenecks: To meet energy storage requirements, large-capacity capacitors are generally large in size. Traditional vertical mounting methods significantly occupy space in the height direction of the controller, directly conflicting with the design trend of lightweight and compact automotive electronic components, and limiting the adaptability of controllers in confined installation spaces (such as engine compartments and door modules). In existing technologies, the connection between capacitors and pins mostly uses welding processes, which not only require additional welding equipment and procedures, but also the welding quality is affected by the operator's skill, posing risks such as incomplete soldering and overheating damage to the capacitor, leading to low production efficiency and fluctuating yield rates. The automotive environment is constantly under vibration; traditional fixing methods (such as adhesive bonding or simple slots) are prone to capacitor displacement due to material fatigue or structural loosening, causing poor contact or short circuit faults, affecting system reliability.

[0003] Therefore, a new capacitor assembly structure is urgently needed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a new capacitor assembly structure to solve the technical problems of traditional vertical installation methods occupying space, traditional welding methods affecting assembly efficiency when fixing capacitors and pins, and poor reliability of traditional fixing methods.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a novel capacitor assembly structure, including a housing. Inside the housing are a capacitor and pins. The housing also includes a snap-fit ​​connection mechanism for fixing the capacitor, with the snap-fit ​​mechanism and the capacitor connected via an interference fit. The snap-fit ​​connection mechanism includes multiple elastic snap-fit ​​plates that cooperate with each other on the inner wall of the housing. The tops of two opposing elastic snap-fit ​​plates are provided with elastic clamps, the inner walls of which are arc-shaped, and the elastic snap-fit ​​plates are inclined inwards. The inner wall of the housing has positioning blocks for positioning the capacitor. The inner wall of the housing also has multiple vertically upward mounting posts, the tops of which have insertion slots for inserting pins. The capacitor leads pass through the grooves on the mounting posts and are electrically connected to the pins.

[0007] As a preferred technical solution of this utility model, the top end of the elastic clamp is provided with a pressing guide slope.

[0008] As a preferred embodiment of this utility model, the inner wall of the housing is provided with reinforcing ribs that are perpendicular to the positioning block.

[0009] As a preferred embodiment of this utility model, the tilt angle of the elastic buckle plate is 3-5°.

[0010] As a preferred embodiment of this utility model, the distance between the two opposing elastic clamps is set to 90-95% of the capacitor diameter.

[0011] As a preferred technical solution of this utility model, the inner wall of the housing is provided with a plurality of limiting plates for limiting the position of the capacitor head.

[0012] The beneficial effects of this utility model are:

[0013] This novel capacitor assembly structure, through a snap-fit ​​connection mechanism, allows multiple elastic snap-fit ​​plates to cooperate in horizontally clamping the capacitor, achieving horizontal installation. This enables the conversion between capacitor diameter and height, reducing the required casing height. The capacitor can be pre-installed inside the casing, and clamping and fixing it requires no additional processes or materials. It also avoids the current practice of using welding methods to fix the capacitor and pins, which affects assembly efficiency. During assembly, the capacitor and snap-fit ​​connection mechanism, through an interference fit, allow the capacitor to slowly move along the guide slope at the top of the elastic snap-fit ​​plates under pressure, guiding it into the inner wall and towards the root of the elastic snap-fit ​​plates until the capacitor is covered by multiple elastic snap-fit ​​plates, which then fix the capacitor under the elastic force of the plates. The positioning blocks allow for quick positioning of the capacitor and prevent it from moving along the axis during vibration. Attached Figure Description

[0014] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0015] Figure 1 This is a schematic diagram of a new capacitor assembly structure according to this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the housing of a new capacitor assembly structure according to this utility model;

[0017] Figure 3This is a schematic diagram of a new capacitor assembly structure based on the present invention, showing an elastic snap-on clamping plate.

[0018] In the diagram: 1. Housing; 2. Capacitor; 3. Pin; 4. Snap-fit ​​connection mechanism; 5. Elastic snap-fit ​​clamp; 6. Elastic clamp; 7. Positioning stop; 8. Push-in guide slope; 9. Reinforcing rib; 10. Limiting plate; 11. Mounting post; 12. Insertion slot. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0020] Example: Figure 1 , Figure 2 and Figure 3As shown, this utility model discloses a novel capacitor assembly structure, including a housing 1. Inside the housing 1 are a capacitor 2 and pins 3. The housing 1 also includes a snap-fit ​​connection mechanism 4 for fixing the capacitor 2. The snap-fit ​​connection mechanism 4 and the capacitor 2 are connected by an interference fit. The snap-fit ​​connection mechanism 4 includes multiple elastic snap-fit ​​plates 5 that cooperate with each other on the inner wall of the housing 1. The tops of two opposing elastic snap-fit ​​plates 5 are provided with elastic clamps 6, the inner walls of which are arc-shaped, and the elastic snap-fit ​​plates 5 are inclined inwards. The inner wall of the housing 1 is provided with positioning blocks 7 for positioning the capacitor 2. The inner wall of the housing 1 is provided with multiple vertically upward mounting posts 11. The top of each mounting post 11 is provided with a insertion groove 12 for inserting the pins 3. The pins of the capacitor 2 pass through the grooves on the mounting posts 11 and are electrically connected to the pins 3. Through the snap-fit ​​connection mechanism 4, the multiple elastic snap-fit ​​plates 2 are fixedly mounted. The elastic clip plates 5 work together to horizontally clamp the capacitor 2, enabling horizontal installation of the capacitor 2. This allows for conversion between the diameter and height of the capacitor 2, reducing the height requirement of the housing 1. The capacitor 2 can be pre-installed inside the housing 1, and clamping and fixing the capacitor 2 does not require additional processes or materials. It also avoids the current situation where welding is used to fix the capacitor 2 and pin 3, which affects assembly efficiency. During assembly, the capacitor 2 and the clip connection mechanism 4, through an interference fit, allow the capacitor 2 to slowly move along the push-in guide slope 8 at the elastic clamp 6 at the top of the elastic clip plate 5 into the inner wall and towards the root of the elastic clip plate 5 under pressure, until the capacitor 2 is covered by multiple elastic clip plates 5. The elastic force of the multiple elastic clip plates 5 fixes the capacitor 2. The positioning block 7 can quickly position the capacitor 2 and prevent the capacitor 2 from moving along the axis under vibration conditions.

[0021] The top of the elastic clamp 6 is provided with a push-in guide slope 8, which facilitates the insertion of the capacitor 2 from the push-in guide slope 8 between multiple elastic buckle plates 5.

[0022] The inner wall of the housing 1 is provided with a reinforcing rib 9 that is perpendicular to the positioning block 7, which improves the stability of the positioning block 7.

[0023] The tilt angle of the elastic buckle plate 5 is 3-5°, which makes it easy to press the capacitor 2 between multiple elastic buckle plates 5 and avoids the possibility of the capacitor 2 being damaged or the elastic buckle plate 5 breaking due to excessive tilt angle exceeding the critical value.

[0024] The distance between the two opposing elastic clamps 6 is set to 90-95% of the capacitor diameter, which facilitates pressing the capacitor 2 between multiple elastic snap clamps 5.

[0025] The inner wall of the housing 1 is provided with multiple limiting plates 10 that limit the head of the capacitor 2, which makes the assembly stability of the capacitor 2 higher.

[0026] During operation, this new capacitor 2 assembly structure, through the provided snap-fit ​​connection mechanism 4, allows multiple elastic snap-fit ​​plates 5 to cooperate in horizontally clamping the capacitor 2, achieving horizontal installation of the capacitor 2. This allows for conversion between the diameter and height of the capacitor 2, reducing the height requirement of the housing 1. The capacitor 2 can be pre-installed in the housing 1, and clamping and fixing the capacitor 2 does not require additional processes or materials. It also avoids the situation where the current welding method for fixing the capacitor 2 and pin 3 affects assembly efficiency. During assembly, the capacitor 2 and the snap-fit ​​connection mechanism 4, through an interference fit, allow the capacitor 2 to slowly move along the push-in guide slope 8 at the elastic clamp 6 at the top of the elastic snap-fit ​​plate 5 into the inner wall and towards the root of the elastic snap-fit ​​plate 5 under pressure, until the capacitor 2 is covered by multiple elastic snap-fit ​​plates 5, and the capacitor 2 is fixed under the elastic force of the multiple elastic snap-fit ​​plates 5.

[0027] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A new capacitor assembly structure, characterized by, Includes a housing (1), inside which is provided a capacitor (2) and a pin (3), inside which is provided a snap-fit ​​connection mechanism (4) for fixing the capacitor (2), and the snap-fit ​​connection mechanism (4) and the capacitor (2) are connected by an interference fit. The buckle connection mechanism (4) includes multiple elastic buckle plates (5) that cooperate with each other on the inner wall of the housing (1). The top ends of two opposing elastic buckle plates (5) are provided with elastic clamps (6). The inner wall of the elastic clamps (6) is arc-shaped, and the elastic buckle plates (5) are inclined inward. The inner wall of the housing (1) is provided with positioning blocks (7) for positioning the capacitor (2). The inner wall of the housing (1) is provided with a plurality of vertically upward mounting posts (11). The top of the mounting post (11) is provided with a insertion groove (12) for inserting a pin (3). The pin of the capacitor (2) passes through the groove provided on the mounting post (11) and is electrically connected to the pin (3).

2. A new capacitor assembly structure according to claim 1, characterized in that, The top of the elastic clamp (6) is provided with a push-in guide slope (8).

3. A new capacitor assembly structure as claimed in claim 1, wherein, The inner wall of the housing (1) is provided with reinforcing ribs (9) that are perpendicular to the positioning block (7).

4. A new capacitor assembly structure according to claim 1, wherein The tilt angle of the elastic buckle plate (5) is 3-5°.

5. A novel capacitor assembly structure according to claim 1, characterized in that, The distance between the two opposing elastic clamps (6) is set to 90-95% of the capacitor diameter.

6. A new capacitor assembly structure according to claim 1, wherein The inner wall of the housing (1) is provided with multiple limiting plates (10) that limit the head of the capacitor (2).