Mounting structure of a micro-speaker top cover and a base
The design of the limiting mechanism solves the problem of inconvenient connection between the top cover and the base frame of the miniature speaker, enabling convenient installation and disassembly of the top cover and simplifying the assembly and maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN YUYIN ELECTROACOUSTIC TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-23
AI Technical Summary
The existing method of connecting the top cover of the miniature speaker to the base frame via thermofusion is inconvenient and makes subsequent repair and replacement difficult.
The design employs a limiting mechanism, including a limiting block, spring, and guide rod, which allows for convenient installation and removal of the top cover through the cooperation between the top cover and the insertion slot.
The assembly and maintenance process of the top cover has been simplified, making it easy to install and remove without the need for tools, which significantly improves operational efficiency.
Smart Images

Figure CN224401672U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electroacoustic product technology, and in particular to an installation structure for a miniature loudspeaker cover and base frame. Background Technology
[0002] With the rapid development of portable electronic products, miniature loudspeakers, as important acoustic components in portable electronic products, have been widely used. Miniature loudspeakers typically include a top cover, a base frame, and a vibration system and magnetic circuit system housed within the cavity formed by the top cover and the base frame.
[0003] Patent CN205793277U, entitled "A Mounting Structure for a Miniature Speaker Cover and Base Frame and a Miniature Speaker," discloses a mounting structure for a miniature speaker cover and base frame, including a cover and a base frame. The base frame has at least two heat-fused pillars on its top surface, and the cover has at least two corresponding clearance holes. Each clearance hole is matched with one of the heat-fused pillars. During installation, the heat-fused pillars pass through the corresponding clearance holes and are heat-fused and bonded to the cover. This patent uses heat fusion to connect the base frame and cover, which is inconvenient for installation, and the cover cannot be disassembled afterward, making subsequent maintenance and replacement very difficult. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a mounting structure for a miniature speaker cover and base frame.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A mounting structure for a miniature speaker cover and base frame includes a base frame and a cover. A surrounding plate is fixedly connected to the upper end of the base frame. An insertion groove is provided on the side wall of the surrounding plate. The cover is located inside the insertion groove. A sealing ring is embedded in the upper end of the base frame. An installation groove is provided on the side wall of the base frame. A limiting mechanism is provided inside the installation groove. The limiting mechanism is used to restrict the cover inside the insertion groove.
[0007] As a further improvement of this utility model, the upper cover is provided with through holes evenly distributed on it.
[0008] As a further improvement of this utility model, the limiting mechanism includes a limiting block disposed inside the mounting groove. The upper end of the limiting block penetrates the inner top wall of the mounting groove and extends into the interior of the insertion groove. The lower end of the limiting block is fixedly connected to two springs, and the lower ends of the springs are fixedly connected to the inner bottom wall of the mounting groove.
[0009] As a further improvement of this utility model, a lever block is fixedly connected to the side wall of the limiting block.
[0010] As a further improvement of this utility model, guide rods are provided on the inner sides of both springs. The upper end of the guide rod is fixedly connected to the lower end of the limiting block. A guide hole located below the guide rod is provided on the inner bottom wall of the mounting groove. The lower end of the guide rod is slidably inserted into the guide hole.
[0011] As a further improvement of this utility model, the limiting block has an inclined surface on the side wall inside the insertion slot.
[0012] The beneficial effects of this utility model are:
[0013] Through the ingeniously designed limiting mechanism and the matching structure between the top cover and the insertion slot, during installation, simply insert the top cover into the insertion slot. The interaction between the top cover and the inclined surface of the limiting block will automatically press down and pass over the limiting block. Then, the elastic restoring force of the spring will push the limiting block up and automatically lock it under the top cover. During disassembly, simply operate the lever to press down the limiting block, so that the limiting block can be removed from under the top cover. The top cover can be easily removed without the need for tools or complicated operations, which significantly simplifies the assembly and maintenance process and makes the top cover easy to install and remove. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the mounting structure of a miniature speaker cover and a base frame proposed in this utility model;
[0015] Figure 2 This utility model provides a schematic diagram of the mounting structure of a miniature speaker cover and base frame, including the base frame, surrounding plate, insertion groove, sealing ring, mounting groove, and guide hole.
[0016] Figure 3 This is a schematic diagram of the limiting block, the toggle block, the guide rod, and the spring in the mounting structure of the top cover and the base frame of a miniature speaker proposed in this utility model.
[0017] In the diagram: 1. Base frame, 2. Enclosure plate, 3. Insertion slot, 4. Top cover, 5. Through hole, 6. Mounting slot, 7. Sealing ring, 8. Guide hole, 9. Limiting block, 10. Guide rod, 11. Spring, 12. Toggle block. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Reference Figures 1-3A mounting structure for a miniature speaker cover and base frame includes a base frame 1 and a cover 4. The cover 4 has through holes 5 evenly distributed on it. A surrounding plate 2 is fixedly connected to the upper end of the base frame 1. An insertion groove 3 is provided on the side wall of the surrounding plate 2. The cover 4 is located inside the insertion groove 3. A sealing ring 7 is embedded in the upper end of the base frame 1. The sealing ring 7 can improve the sealing between the cover 4 and the base frame 1. An installation groove 6 is provided on the side wall of the base frame 1. A limiting mechanism is provided inside the installation groove 6. The limiting mechanism is used to restrict the cover 4 inside the insertion groove 3.
[0020] In this utility model, the limiting mechanism includes a limiting block 9 set inside the mounting groove 6. The upper end of the limiting block 9 penetrates the inner top wall of the mounting groove 6 and extends into the interior of the insertion groove 3. The lower end of the limiting block 9 is fixedly connected to two springs 11. The lower ends of the springs 11 are fixedly connected to the inner bottom wall of the mounting groove 6. The limiting mechanism can install the upper cover 4 inside the enclosure 2, making the installation of the upper cover 4 more convenient. At the same time, the upper cover 4 can be removed by operating the limiting mechanism, realizing the convenient disassembly and assembly of the upper cover 4.
[0021] Both springs 11 have guide rods 10 on their inner sides. The upper end of the guide rod 10 is fixedly connected to the lower end of the limiting block 9. The inner bottom wall of the mounting groove 6 has a guide hole 8 located below the guide rod 10. The lower end of the guide rod 10 is slidably inserted into the guide hole 8. A lever 12 is fixedly connected to the side wall of the limiting block 9. The side wall of the limiting block 9 located in the insertion groove 3 has an inclined surface. When the upper cover 4 is inserted into the insertion groove 3, the upper cover 4 abuts against the inclined surface of the limiting block 9, which causes the limiting block 9 to move down and compress the spring 11. Then, when the upper cover 4 is fully inserted into the insertion groove 3, the elastic force of the spring 11 acts on the limiting block 9, which causes the limiting block 9 to move up. The limiting block 9 limits the upper cover 4, allowing the upper cover 4 to be inserted into the enclosure 2, thus achieving convenient installation of the upper cover 4.
[0022] When using this utility model, the upper cover 4 is inserted into the insertion slot 3 on the side wall of the enclosure 2 fixed at the upper end of the base frame 1. At this time, the side edge of the upper cover 4 contacts and abuts against the upper inclined surface of the limiting block 9 inside the mounting slot 6, causing the limiting block 9 to move downward under force. The downward movement of the limiting block 9 causes the two guide rods 10 fixedly connected to its lower end to slide in the guide hole 8 provided in the bottom wall of the mounting slot 6. At the same time, the limiting block 9 compresses the two springs 11 downward until the upper cover 4 is fully inserted into the insertion slot 3. At this time, the inclined surface of the limiting block 9 is no longer compressed, and the elastic restoring force of the two springs 11 pushes the limiting block 9 upward. The upper end of the limiting block 9 is inserted into the lower part of the upper cover 4 and firmly restricts it inside the insertion slot 3, realizing a convenient fixed connection between the upper cover 4 and the base frame 1.
[0023] When it is necessary to remove the top cover 4, the limit block 9 is pushed down by the paddle 12 fixedly connected to the side wall of the limit block 9 by manual operation. This causes the limit block 9 to move down again to compress the spring 11. The upper end of the limit block 9 is removed from the insertion slot 3, thereby releasing the limiting constraint on the top cover 4. The top cover 4 can then be slid out of the insertion slot 3 and removed.
[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A mounting structure for a miniature loudspeaker cover and base frame, comprising a base frame (1) and a cover (4), characterized in that, The upper end of the base frame (1) is fixedly connected to a surrounding plate (2). The side wall of the surrounding plate (2) is provided with an insertion groove (3). The upper cover (4) is located inside the insertion groove (3). The upper end of the base frame (1) is fitted with a sealing ring (7). The side wall of the base frame (1) is provided with an installation groove (6). The installation groove (6) is provided with a limiting mechanism inside. The limiting mechanism is used to restrict the upper cover (4) inside the insertion groove (3).
2. The mounting structure of the miniature speaker cover and base frame according to claim 1, characterized in that, The top cover (4) is evenly distributed with through holes (5).
3. The mounting structure of the miniature speaker cover and base frame according to claim 1, characterized in that, The limiting mechanism includes a limiting block (9) set inside the mounting groove (6). The upper end of the limiting block (9) penetrates the inner top wall of the mounting groove (6) and extends into the interior of the insertion groove (3). The lower end of the limiting block (9) is fixedly connected to two springs (11). The lower end of the springs (11) is fixedly connected to the inner bottom wall of the mounting groove (6).
4. The mounting structure of the miniature speaker cover and base frame according to claim 3, characterized in that, A lever (12) is fixedly connected to the side wall of the limiting block (9).
5. The mounting structure of the miniature speaker cover and base frame according to claim 3, characterized in that, The inner sides of both springs (11) are provided with guide rods (10), the upper end of the guide rods (10) is fixedly connected to the lower end of the limiting block (9), and the inner bottom wall of the mounting groove (6) is provided with a guide hole (8) located below the guide rods (10), and the lower end of the guide rods (10) is slidably inserted into the guide hole (8).
6. The mounting structure of the miniature speaker cover and base frame according to claim 3, characterized in that, The limiting block (9) has an inclined surface on the side wall inside the insertion slot (3).