Novel linear sliding potentiometer

Abstract

The utility model discloses a novel linear sliding potentiometer which comprises a base, a PCB, a sliding piece, an upper cover and a plurality of terminal pieces, the sliding piece is arranged between the base and the upper cover in a sliding mode, a carbon film is arranged on the upper surface of the PCB, a contact piece is fixedly arranged at the position of the sliding piece, and the contact piece is in sliding contact with the carbon film on the upper surface of the PCB. The terminal piece is inserted in the connecting through hole of the PCB, and the terminal piece and the PCB are embedded in the base. According to the linear sliding potentiometer, the structural design that the PCB and the terminal piece are embedded in the base is adopted, compared with the prior art, the structural design is more convenient to produce and manufacture, the production and manufacturing process of the linear sliding potentiometer is effectively and further simplified, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a potentiometer, in particular to a novel direct-slide potentiometer. Background Art

[0002] A slide potentiometer is a common linear displacement sensor, often used to measure and regulate electrical signals in circuits. A Chinese utility model patent with authorization publication number CN204792279U discloses a slide potentiometer comprising a housing, a push handle, a brush, and a body. The body comprises a carbon sheet and a back cover positioned below the sheet. Terminals are provided at the bottom of the carbon sheet, and the terminals are connected to the back cover by riveting, encapsulating, and cutting. This structural design requires the terminals of the slide potentiometer to be first fixedly connected to the carbon sheet, forming a single unit. The terminals are then connected to the back cover by riveting, encapsulating, and cutting. This process requires two fixed connections: the first between the terminal and the carbon sheet, and the second between the terminal and the back cover. To further simplify the manufacturing process of the slide potentiometer, we have modified the structure of the slide potentiometer and filed a patent application for a new type of slide potentiometer. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a novel direct-slide potentiometer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a novel direct-slide potentiometer, comprising a base, a PCB board, a sliding member, an upper cover, and a plurality of terminal members, wherein the sliding member is slidably arranged between the base and the upper cover, the upper surface of the PCB board is provided with a carbon film, a contact piece is fixedly arranged on the sliding member, the contact piece is in sliding contact with the carbon film on the upper surface of the PCB board, the terminal members are inserted into the connecting through holes of the PCB board, and the terminal members and the PCB board are both embedded in the base.

[0005] To further elaborate, baffle portions folded inward are provided on the inner walls at both ends of the base, and the baffle portions limit the upper side of the PCB board.

[0006] It is further explained that the terminal piece is provided with a plug-in column portion, and the plug-in column portion is sequentially passed through the PCB board and the baffle portion of the base.

[0007] It is further explained that the sliding member is provided with a sliding seat portion, and the sliding seat portion is provided with a handle portion extending outward.

[0008] To further illustrate, the upper cover is provided with a limiting side plate portion, the sliding seat portion of the sliding member is limited and blocked on the inner side of the limiting side plate portion, and the handle portion of the sliding member extends from below the limiting side plate portion.

[0009] The beneficial effect of the present invention is that: the present invention adopts a structural design in which the PCB board and the terminal parts are embedded in the base. Compared with the existing technology, this structural design is more convenient for production and manufacturing, effectively further simplifies the production process of the direct-slide potentiometer, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural diagram of the present utility model.

[0011] Figure 2 It is a schematic diagram of the structural decomposition of the present utility model.

[0012] Figure 3 It is an enlarged schematic diagram of the local structure of the utility model.

[0013] Figure 4 It is a schematic diagram of the assembly between the PCB board and the terminal parts.

[0014] Figure numbers: 10, base; 11, baffle part; 20, PCB board; 21, connecting through hole; 30, sliding part; 31, slide seat part; 32, handle part; 40, upper cover; 41, limiting side plate part; 50, terminal part; 51, plug-in column part. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0016] Combined with attachment Figure 1 To the attached Figure 4 As shown, a novel straight-slide potentiometer includes a base 10, a PCB board 20, a sliding member 30, an upper cover 40, and several terminal members 50. The sliding member 30 is slidably arranged between the base 10 and the upper cover 40. The upper surface of the PCB board 20 is provided with a carbon film. A contact piece 60 is fixedly arranged on the sliding member 30. The contact piece 60 slides in contact with the carbon film on the upper surface of the PCB board 20. The terminal member 50 is inserted into the connecting through hole 21 of the PCB board 20. The terminal member 50 and the PCB board 20 are both embedded in the base 10. Specifically, in combination with the attached Figure 1 and attached Figure 3As shown, contact piece 60, fixedly mounted on sliding member 30, slides in contact with the upper surface of PCB 20, while the lower surface of PCB 20 overlaps terminal piece 50. Because the upper surface of PCB 20 is provided with a carbon film, contact piece 60 slides on the carbon film to adjust the value of the carbon film resistor, making it suitable for use in scenarios such as speed and volume adjustment.

[0017] Combined with attachment Figure 1 and attached Figure 3 As shown, the inner walls of both ends of the base 10 are provided with inwardly folded baffles 11, which limit the upper side of the PCB board 20. The baffles 11 of the base 10 specifically play the role of sealing the PCB board 20 at the base 10, preventing the PCB board 20 from moving up and down. Figure 3 and attached Figure 4 As shown, the terminal 50 is provided with a plug-in column portion 51, which is sequentially inserted into the PCB board 20 and the baffle portion 11 of the base 10. Before the base 10 is injection molded, as shown in the attached Figure 4 As shown, simply insert the pin portion 51 of the terminal 50 into the connecting hole 21 of the PCB 20 and rivet the pin portion 51. Then, the two components are placed together in an injection mold and injection molded. This completes the integrated connection between the base 10, the PCB 20, and the terminal 50. Compared to existing technologies, this structural design is more convenient for manufacturing and effectively simplifies the production process of the slide potentiometer.

[0018] Combined with attachment Figure 2 As shown, the sliding member 30 is provided with a sliding seat portion 31, and the sliding seat portion 31 is provided with a handle portion 32 extending outward. The upper cover 40 is provided with a limiting side plate portion 41, and the sliding seat portion 31 of the sliding member 30 is limited and blocked on the inner side of the limiting side plate portion 41, and the handle portion 32 of the sliding member 30 extends from the bottom of the limiting side plate portion 41. Figure 1 As shown, when the straight-slide potentiometer is used, the handle portion 32 of the sliding member 30 is pushed along the limiting side plate portion 41 of the upper cover 40, thereby driving the slide portion 31, and the slide portion 31 then drives the contact piece 60 to slide in contact with the carbon film on the PCB board 20.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A new type of direct-slide potentiometer, characterized by: The invention comprises a base (10), a PCB board (20), a sliding member (30), an upper cover (40), and a plurality of terminal members (50), wherein the sliding member (30) is slidably arranged between the base (10) and the upper cover (40), the upper surface of the PCB board (20) is provided with a carbon film, a contact piece (60) is fixedly arranged on the sliding member (30), the contact piece (60) is in sliding contact with the carbon film on the upper surface of the PCB board (20), the terminal member (50) is inserted into the connecting through hole (21) of the PCB board (20), and the terminal member (50) and the PCB board (20) are both embedded in the base (10).

2. A novel direct-slide potentiometer according to claim 1, characterized in that: Inwardly folded baffle portions (11) are provided on the inner walls at both ends of the base (10), and the baffle portions (11) limit the upper side of the PCB board (20).

3. A novel direct-slide potentiometer according to claim 2, characterized in that: The terminal piece (50) is provided with an inserting column portion (51), and the inserting column portion (51) is sequentially inserted through the PCB board (20) and the baffle portion (11) of the base (10).

4. A novel direct-slide potentiometer according to claim 1, characterized in that: The sliding member (30) is provided with a sliding seat portion (31), and the sliding seat portion (31) is provided with a handle portion (32) extending outward.

5. A novel direct-slide potentiometer according to claim 4, characterized in that: The upper cover (40) is provided with a limiting side plate portion (41), the sliding seat portion (31) of the sliding member (30) is limited and blocked on the inner side of the limiting side plate portion (41), and the handle portion (32) of the sliding member (30) extends from below the limiting side plate portion (41).

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