Assembly structure of knob main body and power supply assembly
By using a snap-fit installation structure and pin electrical connection, the problem of difficult installation between the knob body and the power supply assembly is solved, achieving easy installation, safe and reliable connection, and an aesthetically pleasing appearance, while also facilitating disassembly and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- AIRBEST (SHENZHEN) TECHNOLOGY CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-12
AI Technical Summary
The existing knob body and power component have inconsistent designs, which leads to installation difficulties, loose connections, and affects user experience and safety.
It adopts a simple positioning and self-guided snap-on installation structure. The knob body and power component are fixed by the cooperation of the snap hook and the snap slot. Combined with the electrical connection of the pin and the pin socket, the adjustment structure of the crescent groove and the screw rod ensures that the installation is simple and stable.
It enables easy installation of the knob body and power supply components, ensuring safe and reliable connection and aesthetic appearance, while also facilitating disassembly and maintenance.
Smart Images

Figure CN224232573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary switch technology, specifically to the assembly structure of the rotary body and the power supply component. Background Technology
[0002] A knob body and power supply unit typically refers to a device that combines knob control functions with power management functions. It is commonly found in smart home systems, dimmers, motorized curtains, audio equipment, air conditioners, and other products. The knob is used to adjust the device's status, while the power supply unit is responsible for the device's power supply and control.
[0003] Existing technologies, such as the utility model patent with publication number CN111986947A, disclose a rotary switch. This patent employs a base, a circuit board, an encoder, a tactile switch button, a rotary assembly, a pressing assembly, a screen, a light guide base, and a light-blocking base. The circuit board is mounted on the base, the encoder is mounted on the circuit board and electrically connected to the circuit board, and the tactile switch button is located on the circuit board corresponding to the center position of the encoder and electrically connected to the circuit board. The user can control the device connected to the circuit board to perform corresponding actions by rotating the knob. Simultaneously, the circuit board outputs signals to the screen, allowing the user to see the screen content. The user can also control the device connected to the circuit board to perform corresponding actions and activate LED beads. The light generated by the LED beads is emitted through the light-transmitting holes of the rotary base and the light guide base towards the light-transmitting area of the face cover, allowing the user to see the light by observing the light-transmitting area, thus meeting user needs.
[0004] However, in daily use, it is often found that if the design standards of the knob body and the power assembly are inconsistent, they may not be able to fit together effectively during installation. For example, mismatched interface sizes or incompatible fixing methods may prevent successful assembly. Additional time and effort may be required to adjust the position or use special tools during installation, which increases the difficulty and time of installation. Especially for those without experience, a loose connection between the knob and the power assembly may lead to loosening or instability during use, thus affecting the user experience and safety. Utility Model Content
[0005] The purpose of this invention is to provide an assembly structure for the knob body and the power supply component, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an assembly structure for a knob body and a power supply component, including a wall box, wherein the power supply component is disposed inside the wall box, and the power supply component and the wall box are interconnected through an assembly structure; the power supply component includes a power supply base shell, a faceplate bracket, and a high-voltage assembly, wherein the high-voltage assembly is installed inside the power supply base shell, and the faceplate bracket is fastened to the top of the power supply base shell; a knob body assembly is disposed above the power supply component, and the knob body assembly and the faceplate bracket are fastened and fixed to each other through a snap-fit installation structure.
[0007] Preferably, the knob body assembly includes a knob base, a low-voltage circuit, a bearing, a rotating bracket, and a metal ring, with the low-voltage circuit being snapped into and fixed inside the knob base.
[0008] Preferably, the bottom of the low-voltage group is electrically connected to a pin, and the top of the high-voltage group is electrically connected to a pin socket, and the pin passes through the knob base and the cover bracket and is connected to the pin socket.
[0009] Preferably, a bearing is embedded in the inner wall of the knob base, a rotatable rotating bracket is installed on the inner ring of the bearing, and a metal ring is inserted and fixed at the top of the rotating bracket; a control component with a display screen is provided on the inner side of the metal ring, and the bottom end of the control component is inserted and fixed to the knob base.
[0010] Preferably, the assembly structure includes a crescent groove, a screw rod, and a metal nut, wherein two metal nuts are provided, and the two metal nuts are integrally embedded in the inner wall of the wall box.
[0011] Preferably, there are two crescent-shaped slots, which are symmetrically opened inside the wall box. A screw rod is provided inside the crescent-shaped slot. When the power supply assembly is installed with the wall box, the screw rod passes through the crescent-shaped slot and is threaded and fixed with a metal nut. The screw rod can move inside the crescent-shaped slot when it passes through it, so as to facilitate the adjustment of the display screen orientation angle in the control assembly.
[0012] Preferably, the buckle mounting structure consists of slots and hooks. The surface of the cover bracket has four slots and four hooks. The four hooks are integrally injection molded on the bottom of the knob base, and when the knob body assembly and the power assembly are installed, the hooks and slots engage with each other.
[0013] Preferably, the hook has side wing ribs injection molded on both sides, which are used to guide the hook and the slot when they are fastened together. The two sides of the surface of the cover bracket are provided with pry holes, and the top of the hook is provided with a beveled edge. The beveled edge, together with the pry hole, facilitates the disassembly of the knob body assembly and the power assembly.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The knob main body assembly and power supply assembly of this utility model are connected using a simple positioning and self-guided snap-fit installation structure. The knob base has four hooks with side ribs that engage with the slots on the faceplate bracket. When fastened, the side ribs provide guidance, facilitating installation while maintaining a clean and aesthetically pleasing appearance. This utility model utilizes the hook engagement for easy disassembly, replacement, maintenance, and adjustment. A pry hole is provided on the side of the slot on the faceplate bracket, allowing for easy disassembly with a beveled edge. The power supply assembly is high-voltage, while the knob main body assembly is low-voltage. The two parts are connected via pins and pin sockets, ensuring safe, reliable, and simple installation. Furthermore, the crescent-shaped groove facilitates adjusting the display screen orientation during installation, ensuring the displayed content is upright. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the separated structure of this utility model;
[0018] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;
[0019] Figure 4 This is a schematic diagram of the enlarged cross-section of the present invention;
[0020] Figure 5 This is an enlarged oblique view of the main knob assembly of this utility model.
[0021] Figure 6 This is a schematic diagram of the cross-sectional explosion structure of this utility model.
[0022] In the diagram: 1. Wall box; 2. Power supply assembly; 21. Power supply base; 22. Front cover bracket; 221. Pry hole; 23. High voltage assembly; 231. Pin socket; 3. Knob main assembly; 31. Knob base; 32. Low voltage assembly; 321. Pin; 33. Bearing; 34. Rotating bracket; 35. Metal ring; 36. Control assembly; 4. Assembly structure; 41. Crescent groove; 42. Screw rod; 43. Metal nut; 5. Snap-fit installation structure; 51. Slot; 52. Hook; 521. Side wing rib; 522. Beveled edge. 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, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0024] The assembly structure of the knob body and the power supply component provided by this utility model is as follows: Figure 1 , Figure 2 as well as Figure 3 As shown, the wall box 1 is included, and a power supply assembly 2 is installed inside the wall box 1. The power supply assembly 2 includes a power supply base 21, a front cover bracket 22, and a high-voltage power supply 23. The high-voltage power supply 23 is installed inside the power supply base 21, and the top of the power supply base 21 is fastened with a front cover bracket 22 with a terminal slot. The power supply assembly 2 and the wall box 1 are connected to each other through an assembly structure 4. The assembly structure 4 includes a crescent groove 41, a screw rod 42, and a metal nut 43. There are two metal nuts 43, which are integrally embedded in the inner wall of the wall box 1. There are two crescent grooves 41, which are symmetrically opened inside the wall box 1. The screw rod 42 is installed inside the crescent groove 41. When the power supply assembly 2 is installed with the wall box 1, the screw rod 42 passes through the crescent groove 41 and is threadedly fixed to the metal nut 43. The screw rod 42 can move inside the crescent groove 41 when it passes through it, so as to facilitate the adjustment of the display screen orientation angle in the control assembly 36.
[0025] During implementation, the high-voltage assembly 23 is installed inside the power supply base 21, and then the power supply base 21 is fastened to the front cover bracket 22. The power supply assembly 2 can be locked and fixed by using two screw rods 42 to pass through the crescent groove 41 and be threaded to the metal nut 43. At the same time, the crescent groove 41 is set to facilitate the adjustment of the screen orientation during installation before locking, so as to ensure that the displayed content is upright.
[0026] Furthermore, such as Figure 2 as well as Figure 3As shown, a knob body assembly 3 is provided above the power supply assembly 2. The knob body assembly 3 includes a knob base 31, a low-voltage assembly 32, a bearing 33, a rotating bracket 34, and a metal ring 35. The low-voltage assembly 32 is snapped and fixed inside the knob base 31 with a terminal slot. The bottom of the low-voltage assembly 32 is electrically connected to a pin 321. The top of the high-voltage assembly 23 is electrically connected to a pin socket 231. The pin 321 passes through the terminal slot of the knob base 31 and the cover bracket 22 and is connected to the pin socket 231. The bearing 33 is embedded in the inner wall of the knob base 31. A rotatable rotating bracket 34 is installed on the inner ring of the bearing 33. The top of the rotating bracket 34 is inserted and fixed to the metal ring 35. A control assembly 36 with a display screen is provided on the inner side of the metal ring 35. The bottom end of the control assembly 36 is inserted and fixed to the knob base 31.
[0027] During implementation, align the pins 321 of the low-voltage group 32 with the terminal slots of the knob base 31 and fasten them inside the knob base 31. Then, embed the bearing 33 into the inner wall of the knob base 31, and then embed the rotating bracket 34 into the inner ring of the bearing 33. After that, install the metal ring 35 onto the rotating bracket 34, and finally fasten the control component 36 onto the knob base 31.
[0028] Furthermore, such as Figure 4 , Figure 5 as well as Figure 6 As shown, the knob main body assembly 3 and the faceplate bracket 22 are fastened together by a snap-fit installation structure 5. The snap-fit installation structure 5 consists of slots 51 and hooks 52. The faceplate bracket 22 has four slots 51 and four hooks 52. The four hooks 52 are integrally injection molded on the bottom of the knob base 31. When the knob main body assembly 3 and the power component 2 are installed, the hooks 52 and the slots 51 are fastened together. The two sides of the hooks 52 are injection molded with side wing ribs 521. The side wing ribs 521 are used to guide the hooks 52 and the slots 51 when they are fastened together. The two sides of the faceplate bracket 22 have pry holes 221. The top of the hooks 52 is provided with a chamfered edge 522. The chamfered edge 522, together with the pry holes 221, facilitates the disassembly of the knob main body assembly 3 and the power component 2.
[0029] During implementation, the four hooks 52 on the knob base 31 are aligned with the four slots 51 on the faceplate bracket 22 for insertion and fastening. The side wing bone position 521 is used for guidance during insertion. After insertion, the knob body component 3 and the power component 2 can be assembled. During subsequent disassembly, the knob body component 3 and the power component 2 can be separated by using a screwdriver to pry it up through the beveled edge 522.
[0030] The knob main body assembly 3 and the power supply assembly 2 of this utility model are connected by a simple positioning and self-guided snap-fit installation structure 5. The knob base 31 has four hooks 52, each with a side rib 521 that engages with the slot 51 on the cover bracket 22. When fastened, the side rib 521 acts as a guide, facilitating installation while maintaining a clean and aesthetically pleasing appearance. This utility model utilizes the hook engagement for easy disassembly, replacement, maintenance, and adjustment. A pry opening 221 is provided next to the slot 51 on the cover bracket 22, which, combined with the beveled edge 522, facilitates disassembly. The power supply assembly 2 is for high-voltage electricity, while the knob main body assembly 3 is for low-voltage electricity. The two parts are connected via a pin 321 and a pin socket 231, ensuring safe, reliable, and convenient installation.
[0031] Working principle: When in use, first install the power supply assembly 2 and the knob body assembly 3. When installing the power supply assembly 2, insert the high voltage group 23 into the inside of the power supply base 21, and then fix the power supply base 21 and the cover bracket 22 together. When installing the knob body assembly 3, align the pin 321 of the low voltage group 32 with the terminal slot of the knob base 31 and snap it into the inside of the knob base 31. Then, insert the bearing 33 into the inner wall of the knob base 31, and then insert the rotating bracket 34 into the inner ring of the bearing 33. After that, install the metal ring 35 onto the rotating bracket 34, and finally snap the control assembly 36 onto the knob base 31.
[0032] After the power supply component 2 and the knob body component 3 are installed, the assembly structure 4 is used to fix the power supply component 2 to the wall box 1. When the assembly structure 4 is implemented, the power supply component 2 can be locked and fixed by using two screw rods 42 to pass through the crescent groove 41 and be threaded to the metal nut 43. Due to the crescent shape design of the crescent groove 41, the position of the power supply component 2 can be adjusted, reducing the difficulty of subsequent adjustment.
[0033] After the power supply component 2 is installed, the knob body component 3 is assembled with the power supply component 2 through the snap-fit installation structure 5. When the snap-fit installation structure 5 is implemented, the four hooks 52 on the knob base 31 are aligned with the four slots 51 on the faceplate bracket 22 for insertion and fastening. The side wing bone position 521 is used for guidance during insertion. After insertion, the knob body component 3 and the power supply component 2 can be assembled. During subsequent disassembly, the knob body component 3 and the power supply component 2 can be separated by using a screwdriver to pry it up through the beveled edge 522.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An assembly structure for a knob body and a power supply assembly, including a wall box (1), characterized in that: The wall box (1) is equipped with a power supply assembly (2), and the power supply assembly (2) and the wall box (1) are connected to each other through an assembly structure (4); the power supply assembly (2) includes a power supply base shell (21), a faceplate bracket (22) and a high-voltage group (23), the high-voltage group (23) is installed inside the power supply base shell (21), and the faceplate bracket (22) is fastened to the top of the power supply base shell (21); a knob body assembly (3) is provided above the power supply assembly (2), and the knob body assembly (3) and the faceplate bracket (22) are fastened to each other through a snap-fit installation structure (5).
2. The assembly structure of the knob body and the power supply assembly according to claim 1, characterized in that: The knob main body assembly (3) includes a knob base (31), a low-voltage assembly (32), a bearing (33), a rotating bracket (34), and a metal ring (35). The low-voltage assembly (32) is snapped and fixed inside the knob base (31).
3. The assembly structure of the knob body and the power supply assembly according to claim 2, characterized in that: The bottom of the low-voltage group (32) is electrically connected to a pin (321), and the top of the high-voltage group (23) is electrically connected to a pin socket (231). The pin (321) passes through the knob base (31) and the cover bracket (22) and is connected to the pin socket (231).
4. The assembly structure of the knob body and the power supply assembly according to claim 3, characterized in that: The inner wall of the knob base (31) is inlaid with a bearing (33), and a rotatable rotating bracket (34) is installed on the inner ring of the bearing (33). A metal ring (35) is inserted and fixed at the top of the rotating bracket (34). A control component (36) with a display screen is provided on the inner side of the metal ring (35), and the bottom end of the control component (36) is inserted and fixed to the knob base (31).
5. The assembly structure of the knob body and the power supply assembly according to claim 1, characterized in that: The assembly structure (4) includes a crescent groove (41), a screw rod (42) and a metal nut (43). There are two metal nuts (43), which are integrally embedded in the inner wall of the wall box (1).
6. The assembly structure of the knob body and the power supply assembly according to claim 5, characterized in that: Two crescent-shaped grooves (41) are provided, and the two crescent-shaped grooves (41) are symmetrically opened inside the wall box (1). A screw rod (42) is provided inside the crescent-shaped groove (41). When the power supply assembly (2) is installed with the wall box (1), the screw rod (42) passes through the crescent-shaped groove (41) and is threadedly fixed with a metal nut (43). The screw rod (42) can move inside the crescent-shaped groove (41) when it passes through it, so as to facilitate the adjustment of the display screen orientation angle in the control assembly (36).
7. The assembly structure of the knob body and the power supply assembly according to claim 1, characterized in that: The buckle mounting structure (5) consists of a slot (51) and a hook (52). The surface of the cover bracket (22) is provided with four slots (51) and four hooks (52). The four hooks (52) are integrally injection molded on the bottom of the knob base (31). When the knob main body assembly (3) and the power assembly (2) are installed, the hooks (52) and the slots (51) are engaged with each other.
8. The assembly structure of the knob body and the power supply assembly according to claim 7, characterized in that: The hook (52) has side wing ribs (521) injection molded on both sides. The side wing ribs (521) are used to guide the hook (52) and the slot (51) when they are fastened. The two sides of the surface of the cover bracket (22) are provided with pry holes (221). The top of the hook (52) is provided with a chamfered edge (522). The chamfered edge (522) and the pry holes (221) facilitate the disassembly of the knob body assembly (3) and the power assembly (2).