Convenient-to-disassemble PCB for household appliances
By using a design that matches mounting blocks and mounting slots on PCBs for home appliances, combined with a two-way threaded rod and worm gear mechanism, the PCB can be quickly disassembled and securely installed, solving the problems of time-consuming and laborious disassembly and unstable screws in traditional methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHENGTAI ELECTRIC CONTROL TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-19
AI Technical Summary
The disassembly process of traditional household appliance PCB boards is time-consuming and laborious, especially when space is limited or screws are not easily accessible. Frequent disassembly and assembly may cause screws to strip or be lost, affecting the fixing effect.
The design adopts a matching mounting block and mounting slot, combined with a two-way threaded rod, baffle and limit post, and uses a worm gear mechanism to realize the quick fixing and release of the PCB board. The assembly and disassembly are completed by rotating the rotating plate to adjust the position of the baffle.
It simplifies the PCB board assembly and disassembly process, improves assembly and disassembly efficiency and installation stability, and avoids problems such as tool usage and stripped screws.
Smart Images

Figure CN224265296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical appliance technology, and more specifically, to a PCB board for household appliances that is easy to disassemble. Background Technology
[0002] Printed circuit boards (PCBs) play a crucial role in home appliances as the support for electronic components and the carrier of electrical connections. With the advancement of technology and the improvement of people's living standards, the level of intelligence in home appliances is constantly deepening, and the design requirements for internal components, including PCBs, are also increasing.
[0003] However, traditional PCB board mounting methods for home appliances primarily rely on screw fixing, i.e., pre-drilled positioning holes on the PCB board and screws connected by threads to secure its position. While this fixing method is simple and direct, it has significant inconveniences in practical applications. When maintenance, upgrades, or replacements are needed, each screw must be unscrewed individually using a screwdriver compatible with the screws to remove the PCB board. This process is not only time-consuming and labor-intensive, but also further complicates operations in situations with limited space or where screws are difficult to access, increasing maintenance costs and time. In addition, frequent disassembly and assembly may cause screws to strip or be lost, affecting the subsequent fixing effect.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a PCB board for home appliances that is easy to disassemble, so as to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A PCB board for home appliances that is easy to disassemble includes a mounting base, a PCB board body above the mounting base, a mounting block connected to the bottom of the PCB board body, a mounting groove on the mounting base, a mounting block that matches the mounting groove, grooves on both sides of the mounting base, a bidirectional threaded rod between the two grooves, a baffle threaded onto the bidirectional threaded rod, and a limit post connected to one side of the baffle.
[0008] Furthermore, the bidirectional threaded rod is connected to the mounting base via a bearing, and the baffle is placed inside the groove.
[0009] Furthermore, in order to further restrict the PCB board, a through hole is provided between the groove and the mounting hole, and a limiting hole is provided on the mounting block. One end of the limiting post passes through the through hole and is placed inside the limiting hole.
[0010] Furthermore, to enhance the locking effect of the bidirectional threaded rod, a worm gear is connected to the bidirectional threaded rod, and a worm is meshed above the worm gear, with one end of the worm connected to the connecting rod.
[0011] Furthermore, one end of the connecting rod passes through the mounting base and connects to the rotating plate, and the connecting rod is connected to the mounting base through a bearing.
[0012] Furthermore, to prevent the baffle from shifting during movement, a limiting rod is connected through the inside of the baffle, and the limiting rod is connected to the mounting base.
[0013] Furthermore, in order to securely install the mounting base, the mounting base is provided with fixing holes.
[0014] The beneficial effects of this utility model are as follows:
[0015] (1) By adopting a design that matches the mounting block with the mounting slot, and in conjunction with the baffle and limiting post on the bidirectional threaded rod, the PCB board can be quickly and securely installed on the mounting base. Compared with the traditional screw fixing method, there is no need to use tools to unscrew each screw, which greatly simplifies the disassembly and assembly process. Furthermore, by setting a worm gear and worm, not only is the locking effect of the bidirectional threaded rod enhanced, but additional operational convenience is also provided. This design allows users to easily adjust the position of the baffle by rotating the turntable, thereby completing the fixing or releasing operation of the PCB board. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0017] Figure 1 This is a front view of a PCB board for home appliances that is easy to disassemble, according to an embodiment of the present utility model;
[0018] Figure 2 This is a structural diagram of a PCB board for home appliances that is easy to disassemble, according to an embodiment of the present utility model;
[0019] Figure 3 This is a structural diagram of a PCB board mounting base for household appliances that is easy to disassemble, according to an embodiment of the present utility model;
[0020] Figure 4 This is a connection diagram of a PCB board for household appliances that is easy to disassemble, according to an embodiment of the present utility model.
[0021] In the picture:
[0022] 1. Mounting base; 2. PCB board; 3. Mounting block; 4. Mounting slot; 5. Groove; 6. Two-way threaded rod; 7. Baffle; 8. Limiting post; 9. Through hole; 10. Limiting hole; 11. Worm gear; 12. Worm; 13. Connecting rod; 14. Rotating plate; 15. Limiting rod; 16. Fixing hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] According to an embodiment of the present invention, a PCB board for home appliances that is easy to disassemble is provided.
[0025] Example 1
[0026] like Figures 1-4As shown, the easily detachable PCB board for home appliances according to an embodiment of the present utility model includes a mounting base 1. The mounting base 1 is the foundation of the entire structure and is used to support and fix the PCB board body 2. The mounting base 1 is made of lightweight and high-strength material. The PCB board body 2 is provided on the top of the mounting base 1 for mounting various electronic components. The bottom end of the PCB board body 2 is connected to a mounting block 3 for cooperating with the mounting groove 4 on the mounting base 1 to achieve the initial positioning of the PCB board body 2. The mounting base 1 is provided with a mounting groove 4 for accommodating the mounting block 3 at the bottom of the PCB board body 2. Mounting block 3 matches mounting slot 4 to ensure PCB board 2 can be accurately installed in the predetermined position. Mounting base 1 has grooves 5 on both sides to support baffle 7. A bidirectional threaded rod 6 is located between the two grooves 5, which can move baffle 7 during rotation. Baffle 7 is threaded onto the bidirectional threaded rod 6 for initial fixation of PCB board 2 and can move limiting post 8. A limiting rod 15 is connected through the baffle 7 and is connected to mounting base 1 to prevent the baffle 7 from shifting during movement, ensuring that the baffle 7 can only move horizontally. A limiting post 8 is connected to one side of the baffle 7 to fix PCB board 2. Movement of the limiting post 8 can fix or loosen PCB board 2. The bidirectional threaded rod 6 is connected to mounting base 1 via bearings. Baffle 7 is placed inside groove 5, and a through hole 9 is provided between groove 5 and mounting hole for limiting post 8 to pass through. Mounting block 3 has a limiting hole 10. One end of limiting post 8 passes through through hole 9 and is placed inside limiting hole 10 to cooperate with limiting post 8 and fix PCB board 2. A worm gear 11 is connected to the bidirectional threaded rod 6. A worm 12 is meshed above the worm gear 11 to drive the worm gear 11 to rotate. One end of worm 12 is connected to connecting rod 13. The connecting rod 13 is used to achieve a stable connection of worm 12. One end of connecting rod 13 passes through mounting base 1 and is connected to rotating plate 14 to facilitate the rotation of connecting rod 13. Connecting rod 13 is connected to mounting base 1 through bearing. Mounting base 1 has fixing hole 16 to facilitate fixing mounting base 1 inside home appliances with bolts.
[0027] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0028] In summary, with the help of the above-mentioned technical solution of this utility model, when it is necessary to disassemble, maintain, or replace the PCB board 2 in actual use, the rotating plate 14 can be rotated to drive the connecting rod 13 and the worm gear 12 to rotate. The rotation of the worm gear 12 can drive the worm wheel 11 and the bidirectional threaded rod 6 to rotate. The rotation of the bidirectional threaded rod 6 can drive the upper baffle 7 to move, thereby moving the baffle 7 and the limiting post 8 away from the PCB board 2. As one end of the limiting post 8 gradually moves away from the limiting hole 10, the fixing effect on the PCB board 2 is released, and the PCB board 2 can be easily disassembled. Compared with the traditional screw fixing method, this design does not require the use of tools to unscrew the screws one by one, which greatly simplifies the disassembly and assembly process and improves work efficiency. When it is necessary to reinstall the PCB board 2, the mounting block 3 under the PCB board 2 can first be placed inside the mounting groove 4. Then, by rotating the rotating plate 14 in the opposite direction, the baffle 7 can be driven to gradually approach the PCB board 2, so that the baffle 7 can tightly abut against the side of the PCB board 2. Simultaneously, the limiting post 8 passes through the through hole 9 and enters the limiting hole 10, achieving a double locking of the PCB board 2. This double locking mechanism not only ensures the stable installation of the PCB board 2 but also improves its stability on the mounting base 1. Furthermore, this invention utilizes a bidirectional threaded rod 6 and a worm gear mechanism. This design makes the movement of the baffle 7 and the limiting post 8 more precise and stable, thereby further improving the fixing effect of the PCB board 2. In summary, this innovative design not only simplifies the assembly and disassembly process of the PCB board 2 but also improves its installation stability and reliability.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A PCB board for household appliances that is easy to disassemble, characterized in that, Includes a mounting base (1), a PCB board (2) is provided above the mounting base (1), a mounting block (3) is connected to the bottom of the PCB board (2), a mounting groove (4) is provided on the mounting base (1), the mounting block (3) matches the mounting groove (4), grooves (5) are provided on both sides of the mounting base (1), a bidirectional threaded rod (6) is provided between the two grooves (5), a baffle (7) is threaded on the bidirectional threaded rod (6), and a limit post (8) is connected to one side of the baffle (7).
2. The easily disassembled PCB board for household appliances according to claim 1, characterized in that, The bidirectional threaded rod (6) is connected to the mounting base (1) via a bearing, and the baffle (7) is placed inside the groove (5).
3. The easily disassembled PCB board for household appliances according to claim 1, characterized in that, A through hole (9) is provided between the groove (5) and the mounting hole, and a limiting hole (10) is provided on the mounting block (3). One end of the limiting post (8) passes through the through hole (9) and is placed inside the limiting hole (10).
4. The easily disassembled PCB board for household appliances according to claim 1, characterized in that, A worm gear (11) is connected to the double-threaded rod (6), and a worm (12) is meshed above the worm gear (11). One end of the worm (12) is connected to the connecting rod (13).
5. A PCB board for easy disassembly in household appliances according to claim 1, characterized in that, One end of the connecting rod (13) passes through the mounting base (1) and is connected to the rotating plate (14). The connecting rod (13) is connected to the mounting base (1) through a bearing.
6. A PCB board for home appliances that is easy to disassemble according to claim 1, characterized in that, A limiting rod (15) is connected through the inside of the baffle (7), and the limiting rod (15) is connected to the mounting base (1).
7. A PCB board for home appliances that is easy to disassemble according to claim 1, characterized in that, The mounting base (1) is provided with fixing holes (16).