A dual-purpose potentiometer

Abstract

This utility model belongs to the field of potentiometers, specifically a dual-purpose potentiometer. Addressing the problems of limited installation methods, cumbersome assembly, and unstable performance in existing traditional potentiometers, the following solution is proposed: It includes a knob and a base, with a carbon plate and a brush disposed between them. One side of the base has a surface-mount anti-fooling post and an opening for inserting two types of output terminals (T-shaped and U-shaped). Corresponding openings are provided for the carbon plate and brush, and the output terminals are riveted to the carbon plate and brush, eliminating the need for traditional soldering and improving assembly efficiency. The inner wall of the knob has a groove that engages with the outer rib of the base to prevent detachment, and the knob also has a limit post that cooperates with the notch on the carbon plate and brush to limit rotation. This potentiometer, through different shaped output terminals, can achieve both surface-mount and plug-in installation methods, suitable for hearing aids, small wearable devices, and other fields, meeting the needs of different application scenarios. It has advantages such as simple structure, convenient assembly, stable performance, and small size.

Description

Technical Field

[0001] This utility model relates to the field of potentiometer technology, and in particular to a dual-purpose potentiometer. Background Technology

[0002] A potentiometer is an adjustable electronic component whose core function is to continuously change the resistance value of a circuit through mechanical rotation or sliding, thereby adjusting the voltage, current, or signal strength.

[0003] Traditional potentiometers typically only support one mounting method (surface mount or plug-in), making it difficult to adapt to different application scenarios (such as hearing aids requiring surface mount and industrial equipment requiring plug-in). Furthermore, traditional potentiometers require soldering or screws to fix the carbon sheet, brush, and output terminals, making the assembly process cumbersome and prone to performance instability due to poor contact. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, where traditional potentiometers typically only support one mounting method (surface mount or plug-in), making it difficult to adapt to different application scenarios (such as surface mount for hearing aids and plug-in for industrial equipment). Furthermore, traditional potentiometers require welding or screws to fix the carbon sheet, brush, and output terminal, resulting in cumbersome assembly steps and potential performance instability due to poor contact. Therefore, this invention proposes a dual-purpose potentiometer.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dual-purpose potentiometer includes a knob and a base. A carbon plate and a brush are disposed between the knob and the base. Two anti-fooling posts are fixedly disposed on one side of the base. The base has two first sockets and a second socket. A first output terminal is inserted into the two sockets, and a second output terminal is inserted into the second socket. The carbon plate has two third sockets corresponding to the first output terminals. A fourth socket corresponding to the second output terminal is disposed at the center of the carbon plate. The brush has a through hole. One end of the first output terminal is inserted into the third socket, and one end of the second output terminal is inserted into the fourth socket and the through hole.

[0007] In one possible design, the outer side of the base is fixedly fitted with a raised rib and is an integral structure. The inner wall of the knob has a groove that cooperates with the raised rib. One end of the base is inserted into the knob, and the raised rib engages with the groove.

[0008] In one possible design, a resistor is printed on one side of the carbon sheet, and one side of the brush is in contact with the resistor and is slidably connected.

[0009] In one possible design, the first output terminal is riveted to a carbon sheet, and the second output terminal is riveted to a brush.

[0010] In one possible design, a limiting post is fixedly provided on the inner wall of one side of the knob, and a brush notch is formed on the carbon sheet to cooperate with the limiting post. The limiting post is located within the brush notch.

[0011] In one possible design, the first output terminal and the second output terminal have two shapes: one is T-shaped, and the other is Chinese character-shaped.

[0012] In this application, during use, the carbon sheet is first installed into the base. The T-shaped first output terminal is inserted into the first socket of the base and the third socket of the carbon sheet. The carbon sheets are then riveted together using the first output terminal. Next, the T-shaped second output terminal is inserted into the first and second sockets. The brush is placed on the carbon sheet and fitted onto the second output terminal through a perforation. The second output terminal and the brush are riveted together to form a finished product (the brush is in contact with the resistor on the carbon sheet and is movable and rotatable). This can be used as a semi-fixed adjustable potentiometer. If the knob is installed on the above finished product, it forms a miniature potentiometer. The knob installation steps are as follows: place the knob on the base, align the limiting post with the brush notch, and apply appropriate force to engage the protruding rib into the groove. The groove on the knob engages with the raised rib on the base to prevent it from falling off. The limiting post on the knob engages with the brush notch to limit rotation (the limiting post can drive the brush to rotate when the knob is turned). Since the first and second output terminals have two shapes, one is T-shaped and the other is U-shaped, the T-shaped first and second output terminals can form a miniature potentiometer surface mount type, and the U-shaped first and second output terminals can form a miniature potentiometer plug-in type. This application has a simple structure, is easy to assemble, has stable performance, and is small in size. It can be made into SMT surface mount type and plug-in type, and the shape is selectable. It is mainly used in hearing aids, small wearable devices and other fields. The shape and size of the knob can be customized according to actual requirements.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this utility model, the dual-purpose potentiometer can be configured as a micro potentiometer surface mount type or a micro potentiometer plug-in type through the dual-form first output terminal and second output terminal.

[0015] In this utility model, the first and second output terminals of the dual-purpose potentiometer are installed by riveting, which effectively improves the efficiency compared to traditional welding (which requires preheating, tinning, and cooling). At the same time, the knob and the base are connected by ribs and grooves, which further improves the assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a first exploded view of a dual-purpose potentiometer proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of a miniature potentiometer plug-in structure for a dual-purpose potentiometer proposed in this utility model.

[0018] Figure 3 This is a schematic diagram of a miniature potentiometer patch structure for a dual-purpose potentiometer proposed in this utility model;

[0019] Figure 4 This is a second exploded view of a dual-purpose potentiometer proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the base, carbon sheet, second output terminal, and brush of a dual-purpose potentiometer proposed in this utility model.

[0021] Figure 6 This is a schematic diagram of the dual-form structure of the first and second output terminals of a dual-purpose potentiometer proposed in this utility model.

[0022] Figure 7 This is a schematic diagram of the semi-fixed adjustable potentiometer state structure of a dual-purpose potentiometer proposed in this utility model.

[0023] In the diagram: 1. Knob; 2. First output terminal; 3. Second output terminal; 4. Surface mount anti-fooling post; 5. Limiting post; 6. Groove; 7. Brush notch; 8. Carbon sheet; 9. Base; 10. Rib; 11. Resistor; 12. Brush. Detailed Implementation

[0024] 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.

[0025] In one embodiment: Refer to Figure 1-7 This is a dual-purpose potentiometer used in the potentiometer field. Key components include: a knob 1, a base 9, a carbon sheet 8, a brush 12, a first output terminal 2, and a second output terminal 3. Through ingenious design and combination of these components, the potentiometer can be installed in both surface-mount and through-hole configurations, meeting the needs of different application scenarios. It also offers advantages such as easy assembly and stable performance.

[0026] The base 9 serves as the fundamental support component for the entire potentiometer, and two surface mount anti-misfit posts 4 are fixedly installed on one side. These two surface mount anti-misfit posts 4 play a crucial role in preventing installation errors during surface mount installation, ensuring that the potentiometer can be installed correctly.

[0027] The base 9 has two sockets, a first socket and a second socket. The first socket is used to connect the first output terminal 2, and the second socket is used to connect the second output terminal 3. This socket design makes the installation of the output terminals more secure.

[0028] The outer side of the base 9 is fitted with a protruding rib 10, and the protruding rib 10 and the base 9 are an integral structure. This integrated design enhances the strength and stability of the structure and provides a reliable foundation for subsequent connection with the knob 1.

[0029] The carbon sheet 8 has two third sockets corresponding to the first output terminal 2, and a fourth socket at its center corresponding to the second output terminal 3. These sockets correspond to the sockets on the base 9, allowing the first output terminal 2 and the second output terminal 3 to pass through smoothly.

[0030] A resistor 11 is printed on one side of the carbon sheet 8. The resistance value of the resistor 11 is precisely printed according to the design requirements of the potentiometer to ensure that the potentiometer can accurately adjust the voltage or current.

[0031] The carbon sheet 8 also has a brush notch 7 for use with the limiting post 5. This notch interacts with the limiting post 5 when the potentiometer is working.

[0032] In another embodiment: Reference Figure 1-7 The brush 12 has a through hole, into which one end of the second output terminal 3 can be inserted. In this way, the brush 12 can be connected to the second output terminal 3 and can rotate under the constraint of the second output terminal 3.

[0033] One side of the brush 12 contacts the resistor 11 printed on the carbon sheet 8 and can slide. When the brush 12 slides on the resistor 11, it changes the resistance value connected to the circuit, thereby realizing the potentiometer adjustment function.

[0034] The first output terminal 2 and the second output terminal 3 come in two shapes: one is T-shaped, and the other is U-shaped. Different shapes of output terminals are suitable for different installation methods. The T-shaped output terminal can be used for surface mount installation, while the U-shaped output terminal can be used for through-hole installation.

[0035] The first output terminal 2 is riveted to the carbon sheet 8, and the second output terminal 3 is riveted to the brush 12. Compared with traditional soldering, the riveting process eliminates the need for complex steps such as preheating, tinning, and cooling, effectively improving assembly efficiency and resulting in a more robust and reliable connection, reducing the possibility of poor contact.

[0036] The inner wall of the knob 1 has a groove 6 that mates with the protruding rib 10 on the base 9. During assembly, one end of the base 9 is inserted into the knob 1, so that the protruding rib 10 engages with the groove 6. This engaging connection method is simple and convenient, allowing for quick assembly of the knob 1 and the base 9, and has strong connection strength, preventing the knob 1 from falling off during use.

[0037] A limiting post 5 is fixedly installed on one inner wall of the knob 1, and the limiting post 5 is located in the brush notch 7 on the carbon sheet 8. When the knob 1 is rotated, the limiting post 5 will rotate with the knob 1, and due to the limitation of the brush notch 7, it will drive the brush 12 to rotate within a certain angle range.

[0038] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dual-purpose potentiometer, characterized by comprising: Includes a knob (1) and a base (9). A carbon sheet (8) and a brush (12) are provided between the knob (1) and the base (9). Two anti-foolproof pins (4) are fixedly provided on one side of the base (9). Two first sockets and second sockets are provided on the base (9). A first output terminal (2) is inserted into the two sockets. A second output terminal (3) is inserted into the second socket. Two third sockets corresponding to the first output terminal (2) are provided on the carbon sheet (8). A fourth socket corresponding to the second output terminal (3) is provided at the center of the carbon sheet (8). A through hole is provided on the brush (12). One end of the first output terminal (2) is inserted into the third socket. One end of the second output terminal (3) is inserted into the fourth socket and the through hole.

2. A dual-purpose potentiometer according to claim 1, characterized in that The outer side of the base (9) is fixedly fitted with a protruding rib (10) and is an integral structure. The inner wall of the knob (1) is provided with a groove (6) that works with the protruding rib (10). One end of the base (9) is inserted into the knob (1), and the protruding rib (10) and the groove (6) are engaged.

3. A dual-purpose potentiometer according to claim 1, wherein A resistor (11) is printed on one side of the carbon sheet (8), and one side of the brush (12) is in contact with the resistor (11) and is slidably connected.

4. The dual-purpose potentiometer according to claim 1, wherein The first output terminal (2) is riveted to the carbon sheet (8), and the second output terminal (3) is riveted to the brush (12).

5. The dual-purpose potentiometer according to claim 1, wherein A limiting post (5) is fixedly provided on one side of the inner wall of the knob (1), and a brush notch (7) is opened on the carbon sheet (8) to cooperate with the limiting post (5). The limiting post (5) is located inside the brush notch (7).

6. The dual-purpose potentiometer according to claim 1, wherein The first output terminal (2) and the second output terminal (3) have two shapes: one is T-shaped and the other is Chinese character-shaped.

Images