A resin spacer structure

By incorporating a grid-like bracket and snap-fit ​​assembly within the ignition coil housing, the problems of cracking and insufficient pressure resistance caused by improper epoxy resin usage were resolved, thus achieving stable operation and extended lifespan of the ignition coil.

CN224384053UActive Publication Date: 2026-06-19CHANGSHA AOSKY AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA AOSKY AUTO PARTS CO LTD
Filing Date
2025-05-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Using too much epoxy resin in the ignition coil can cause cracking, while using too little can result in insufficient pressure resistance, affecting performance and lifespan.

Method used

A grid-like bracket is installed inside the ignition coil housing to divide the epoxy resin into multiple small pieces, which are then fixed by the first and second clip components to precisely control the amount used.

Benefits of technology

This reduces the risk of epoxy resin cracking, avoids insufficient pressure resistance, and ensures the stability and service life of the ignition coil.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224384053U_ABST
    Figure CN224384053U_ABST
Patent Text Reader

Abstract

This utility model discloses a resin isolation structure, relating to the field of ignition coil technology. It includes epoxy resin disposed within the housing of an ignition coil. The epoxy resin is composed of several resin blocks, which are mounted on a bracket. The bracket is installed within the housing of the ignition coil. A first snap-fit ​​assembly is provided on one side of the bracket, and a second snap-fit ​​assembly is provided on the side opposite to the first snap-fit ​​assembly. This utility model effectively reduces the risk of epoxy resin cracking by dividing the epoxy resin into multiple small blocks using a grid-like bracket disposed within the housing of the ignition coil. Simultaneously, it allows for more precise control of the amount of epoxy resin used in each small area, avoiding problems such as insufficient pressure resistance and breakdown due to insufficient overall usage.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of ignition coil technology, specifically a resin isolation structure. Background Technology

[0002] In the structure of ignition coils, epoxy resin plays a crucial role as a key encapsulation component. Epoxy resin encapsulates internal components such as the coil and core, providing insulation, fixation, and moisture protection, thus playing an indispensable role in ensuring the normal operation and performance stability of the ignition coil.

[0003] However, in actual production and use, when too much epoxy resin is used, the internal stress generated during curing is greater, which can easily lead to resin cracking, thus affecting the performance and service life of the ignition coil. Conversely, if too little epoxy resin is used, it will result in insufficient withstand voltage and breakdown. This resin cracking problem is particularly prominent for some larger coils with a large amount of internal epoxy resin.

[0004] Based on this, a resin isolation structure is now provided that can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a resin isolation structure to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A resin isolation structure includes epoxy resin disposed inside an ignition coil housing. The epoxy resin is composed of several resin blocks, which are mounted on a bracket. The bracket is installed inside the ignition coil housing. A first snap-fit ​​assembly is provided on one side of the bracket, and a second snap-fit ​​assembly is provided on the side of the bracket opposite to the first snap-fit ​​assembly.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the resin block has first slots on both sides.

[0010] In one alternative: the bracket is provided with a plurality of slots for mounting resin blocks, the bottom of the slot is provided with a support portion, and the side wall of the slot is provided with a first locking block that matches the slot.

[0011] In one alternative: the bracket has a C-shaped seat on the side near the first buckle assembly, and the bracket has a connector on the side near the second buckle assembly.

[0012] In one alternative embodiment: the connector includes two positioning seats connected to the side of the bracket, with a fixing seat between the positioning seats, and mounting holes provided on both the positioning seats and the fixing seat, wherein the mounting holes on the fixing seat are provided with second slots on both sides.

[0013] In one alternative: the first snap-fit ​​assembly includes a limiting block that is slidably mounted on the housing of the ignition coil, the upper end of the limiting block having an inclined surface, and a spring being provided on one side of the limiting block.

[0014] In one alternative: the second snap-fit ​​assembly includes a mounting base fixed inside the ignition coil housing, the mounting base having two symmetrically arranged positioning posts, and a locking assembly between the positioning posts.

[0015] In one alternative: the locking assembly includes two elastic plates symmetrically fixed on the mounting base, one side of the elastic plate is provided with a second locking block that matches the second locking slot, and the upper end of the elastic plate is provided with a pressing part.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model divides epoxy resin into multiple small blocks by setting a grid-like bracket inside the shell of the ignition coil, which effectively reduces the risk of epoxy resin cracking. At the same time, it can more accurately control the amount of epoxy resin used in each small area, avoiding the problem of insufficient pressure resistance and breakdown due to insufficient overall amount.

[0018] 2. This utility model makes the installation and removal of the bracket more convenient through the cooperation between the first buckle component and the second buckle component. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the support structure in this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the first snap-fit ​​component in this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the second buckle assembly in this utility model.

[0023] Reference numerals in the attached drawings: 100, ignition coil housing; 200, epoxy resin; 201, resin block; 202, first slot; 300, bracket; 301, slot; 302, support part; 303, first locking block; 304, C-shaped locking seat; 305, positioning seat; 306, fixing seat; 307, mounting hole; 308, second slot; 400, first snap-fit ​​assembly; 401, limiting block; 402, inclined surface; 403, spring; 500, second snap-fit ​​assembly; 501, mounting seat; 502, positioning post; 503, locking assembly; 504, elastic plate; 505, second locking block; 506, pressing part. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, such as Figure 1 and Figure 2 As shown, a resin isolation structure includes epoxy resin 200 disposed inside an ignition coil housing 100. The epoxy resin 200 is composed of several resin blocks 201. The resin blocks 201 are mounted on a bracket 300, which is installed inside the ignition coil housing 100. A first snap-fit ​​assembly 400 is provided on one side of the bracket 300, and a second snap-fit ​​assembly 500 is provided on the side of the bracket 300 opposite to the first snap-fit ​​assembly 400. During installation, the resin blocks 201 are first installed on the bracket 300, and then the bracket 300 with the resin blocks 201 is installed inside the ignition coil housing 100. The bracket 300 is then locked by the first snap-fit ​​assembly 400 and the second snap-fit ​​assembly 500.

[0026] In one embodiment, such as Figure 2 As shown, the resin block 201 has first slots 202 on both sides, which match the first slot 303 on the bracket 300 to achieve stable installation.

[0027] In one embodiment, such as Figure 2 As shown, the bracket 300 is provided with a plurality of slots 301 for installing resin blocks 201. The bottom of the slot 301 is provided with a support part 302. The side wall of the slot 301 is provided with a first locking block 303 that matches the slot 202. Through the cooperation of the first locking slot 202 and the first locking block 303, the resin block 201 is more firmly installed on the bracket 300.

[0028] In one embodiment, such as Figure 2As shown, the bracket 300 has a C-shaped bracket 304 on the side near the first buckle assembly 400, and a connector on the side near the second buckle assembly 500. During installation, the C-shaped bracket 304 is limited by the first buckle assembly 400, and the connector is used to form a snap-fit ​​with the second buckle assembly 500.

[0029] In one embodiment, such as Figure 2 As shown, the connector includes two positioning seats 305 connected to the side of the bracket 300, and a fixing seat 306 is provided between the positioning seats 305. Both the positioning seats 305 and the fixing seat 306 are provided with mounting holes 307. The mounting holes 307 on the fixing seat 306 are provided with second slots 308 on both sides. The second slots 308 cooperate with the second locking block 505 of the second buckle assembly 500 to further enhance the fixing effect of the bracket 300.

[0030] In one embodiment, such as Figure 3 As shown, the first latching assembly 400 includes a limiting block 401 slidably mounted on the ignition coil housing 100. The upper end of the limiting block 401 is provided with an inclined surface 402, and a spring 403 is provided on one side of the limiting block 401. When the bracket 300 is installed, the limiting block 401 slides against the elastic force of the spring 403 through the action of the inclined surface 402, so that the C-shaped bracket 304 of the bracket 300 can pass through. After the C-shaped bracket 304 is fully inserted, the limiting block 401 is reset under the action of the spring 403, thereby achieving the clamping and limiting of the bracket 300.

[0031] In one embodiment, such as Figure 4 As shown, the second snap-fit ​​assembly 500 includes a mounting base 501 fixed inside the ignition coil housing 100. Two positioning posts 502 are symmetrically arranged on the mounting base 501, and a locking assembly 503 is provided between the positioning posts 502. During installation, the mounting hole 307 on the positioning base 305 is aligned with the positioning post 502, and the locking assembly 503 is inserted into the mounting hole 307 on the fixing base 306 to form a lock.

[0032] In one embodiment, such as Figure 4 As shown, the locking assembly 503 includes two elastic plates 504 symmetrically fixed on the mounting base 501. One side of the elastic plate 504 is provided with a second locking block 505 that matches the second locking groove 308. The upper end of the elastic plate 504 is provided with a pressing part 506. During installation, the mounting hole 307 on the fixing base 306 is fitted onto the elastic plate 504, and the second locking block 505 is locked into the second locking groove 308 to form a locking connection. When the locking connection is released, the pressing part 506 is pressed inward to make the second locking block 505 leave the second locking groove 308.

[0033] The above embodiment discloses a resin isolation structure. During installation, the resin block 201 is installed in the slot 301 on the bracket 300 by the cooperation of the first slot 202 and the first block 303. Then, the bracket 300 with the resin block 201 is installed in the ignition coil housing 100. During installation, the limiting block 401 slides against the elastic force of the spring 403 by the action of the inclined surface 402, so that the C-shaped bracket 304 of the bracket 300 can pass through. After the C-shaped bracket 304 is fully inserted, the limiting block 401 is reset under the action of the spring 403, thereby achieving the clamping and limiting of the bracket 300. At the same time, the mounting hole 307 on the positioning seat 305 is aligned with the positioning post 502, and the mounting hole 307 on the fixing seat 306 is fitted onto the elastic plate 504, and the second block 505 is inserted into the second slot 308, thereby fixing the bracket 300.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A resin insulating structure comprising epoxy resin (200) disposed within an ignition coil housing (100), characterized in that, The epoxy resin (200) is composed of several resin blocks (201), the resin blocks (201) are mounted on a bracket (300), the bracket (300) is mounted inside the ignition coil housing (100), a first snap-fit ​​assembly (400) is provided on one side of the bracket (300), and a second snap-fit ​​assembly (500) is provided on the side of the bracket (300) opposite to the first snap-fit ​​assembly (400).

2. The resin isolation structure according to claim 1, characterized in that, The resin block (201) has a first slot (202) on both sides.

3. The resin isolation structure according to claim 1, characterized in that, The bracket (300) is provided with a plurality of slots (301) for installing resin blocks (201), the bottom of the slots (301) is provided with a support (302), and the side wall of the slots (301) is provided with a first locking block (303) that matches the locking slot (202).

4. The resin isolation structure according to claim 3, characterized in that, The bracket (300) has a C-shaped bracket seat (304) on the side near the first buckle assembly (400), and the bracket (300) has a connector on the side near the second buckle assembly (500).

5. The resin isolation structure according to claim 4, characterized in that, The connector includes two positioning seats (305) connected to the side of the bracket (300), and a fixing seat (306) is provided between the positioning seats (305). Both the positioning seats (305) and the fixing seat (306) are provided with mounting holes (307), wherein the mounting holes (307) on the fixing seat (306) are provided with second slots (308) on both sides.

6. The resin isolation structure according to claim 1, characterized in that, The first snap-fit ​​assembly (400) includes a limiting block (401) that is slidably mounted on the ignition coil housing (100). The upper end of the limiting block (401) is provided with an inclined surface (402), and a spring (403) is provided on one side of the limiting block (401).

7. The resin isolation structure according to claim 1, characterized in that, The second snap-fit ​​assembly (500) includes a mounting base (501) fixed inside the ignition coil housing (100), and two positioning posts (502) are symmetrically provided on the mounting base (501), and a locking assembly (503) is provided between the positioning posts (502).

8. The resin isolation structure according to claim 7, characterized in that, The locking assembly (503) includes two elastic plates (504) symmetrically fixed on the mounting base (501). One side of the elastic plate (504) is provided with a second locking block (505) that matches the second locking slot (308). The upper end of the elastic plate (504) is provided with a pressing part (506).