Bending appliance capable of improving test of membrane switch connector

Abstract

The utility model relates to the technical field of membrane switches, and discloses a bending appliance capable of improving the test of a membrane switch connector, which comprises a bottom plate and a protective cover, a bending hole is formed in one side of the bottom plate, a wire outlet assembly is arranged in the bending hole, one end of the lower surface of the protective cover is fixedly connected with a pressing block, and the other end of the lower surface of the protective cover is fixedly connected with a connecting rod. The horizontal cross section of the pressing block is smaller than the horizontal cross section of the bending hole, a side hole is formed in one side of the protecting cover, the lower circuit connecting piece of the wire outlet assembly is fixed to the bottom plate, then the pressing block abuts against the wire outlet film when the protecting cover is covered, the pressing block and the bending hole are matched to bend the wire outlet film, and therefore the wire outlet film is bent. And the thermoplastic layer is heated by the hot air gun to shrink, so that the protection effect on the exposed part is improved, the stable and reliable product function is ensured, the assembly space is smaller, the protection effect of the membrane switch is strong, and the battery consumption is convenient to display.

Description

Technical Field

[0001] The utility model relates to the technical field of membrane switches, and particularly relates to a bending device that can improve the test of membrane switch connectors. Background Technique

[0002] At present, a membrane switch is an operating system integrating button functions, indicating elements, and instrument panels. It consists of four parts: a panel, an upper circuit, an isolation layer, and a lower circuit. When the membrane switch is pressed, the contacts of the upper circuit deform downward and come into contact with the plates of the lower circuit to conduct. After the finger is released, the contacts of the upper circuit bounce back and the circuit is disconnected, triggering a signal in the loop. The membrane switch has a rigorous structure, beautiful appearance, and good sealing performance. It has the characteristics of moisture-proof and long service life;

[0003] Regarding the connection process of line alignment in the membrane switch, the outgoing line part of the circuit is crimped with a crimp terminal, and the matching plastic housing is sleeved and assembled. Then, the product is assembled with the pin socket that cooperates with the customer's counter part to complete the assembly. This process has strong connection reliability;

[0004] However, since the product connection method is vertical, it has high requirements for the customer's equipment space, and there is no protection effect at the connection. If the customer has special requirements, it cannot be met. Therefore, we need to propose a bending device that can improve the test of membrane switch connectors. Content of the Utility Model

[0005] The purpose of the utility model is to provide a bending device that can improve the test of membrane switch connectors, with stable and reliable product functions, small occupied space for assembly, convenient bending of the outgoing line assembly, increased waterproof and insulation protection effects for the exposed part, strong protection effect, thereby improving the service life of the membrane switch and customer satisfaction, so as to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A bending device that can improve the test of membrane switch connectors, including a bottom plate and a protective cover. One side of the bottom plate is provided with a bending hole, and an outgoing line assembly is arranged inside the bending hole. One end of the lower surface of the protective cover is fixedly connected with a pressing block. The horizontal cross-section of the pressing block is smaller than the horizontal cross-section of the bending hole. One side of the protective cover is provided with a side hole;

[0007] The outgoing line assembly includes a lower circuit connecting piece, an outgoing line film, and a terminal protective shell. One end of the lower circuit connecting piece and one end of the outgoing line film are integrally formed. The other end of the outgoing line film is bonded with a terminal protective shell. The connection end of the lower circuit connecting piece and the outgoing line film is arranged inside the bending hole. Multiple groups of pin wires are arranged inside the outgoing line film, and the multiple groups of pin wires are arranged at equal intervals. A thermoplastic film is arranged on the periphery of the outgoing line film.

[0008] Preferably, one end of each of the plurality of groups of pin wires is provided with a wire terminal, and the wire terminal is arranged in an inner cavity of a terminal protection shell, and one end of the terminal protection shell is provided with a plug.

[0009] Preferably, the lower circuit connection sheet is adhered to the upper surface of the bottom plate, and a membrane switch electrically connected to the lower circuit connection sheet is provided on the upper surface of the bottom plate.

[0010] Preferably, two groups of limit frames and connecting keys are fixedly connected to the upper surface of the bottom plate, the connecting keys are arranged between the two groups of limit frames, and connecting spring pieces are inserted on opposite sides of the two groups of limit members.

[0011] Preferably, both ends of the connecting spring piece penetrate the limiting frame and are fixedly connected with an anti-drop sheet, and the lower surface of the protective cover is provided with a bottom key that contacts the connecting spring piece.

[0012] Preferably, the upper surface of the bottom plate is provided with a plurality of docking holes, the lower surface of the protective cover is fixedly connected with a plurality of docking blocks, and the plurality of docking blocks are respectively inserted into the pairs of docking holes.

[0013] Preferably, the lower surface of the protective cover is bonded with multiple groups of waterproof rings through which the docking blocks penetrate, the upper surface of the protective cover is provided with buttons, and the upper surface of the buttons is bonded with switch marks, and the upper surface of the protective cover is bonded with power display marks and positive and negative pole marks.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model mainly cooperates between a bottom plate, a bending hole, a protective cover, a pressing block and an outlet assembly, and fixes a lower circuit connecting piece of the outlet assembly on the bottom plate, so that when the protective cover is covered, the pressing block contacts the outlet film, so that the pressing block cooperates with the bending hole to bend the outlet film, thereby ensuring that the outlet film can be bent, and heats the thermoplastic layer with a hot air gun to shrink it, thereby improving the protection effect of the exposed part, ensuring that the product function is stable and reliable, and at the same time, the assembly space is smaller, the protection effect of the membrane switch is strong, and the battery usage display is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model when the protective cover is opened;

[0018] Figure 3 This is a schematic diagram of the structure of the outlet assembly of the utility model.

[0019] In the figure: 1, bottom plate; 2, protective cover; 3, side hole; 4, button; 5, switch logo; 6, power display logo; 7, positive and negative pole logo; 8, docking hole; 9, docking block; 10, bottom key; 11, limit frame; 12, connection key; 13, connection elastic piece; 14, anti - detachment piece; 15, bending hole; 16, pressing block; 17, waterproof ring; 18, wire outlet assembly; 181, lower circuit connection piece; 182, wire outlet film; 183, end protection shell; 184, plug; 185, pin wire; 186, wire end; 187, thermoplastic film. Specific implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , the present invention provides a technical solution: a bending device that can improve the test of a membrane switch connector, including a bottom plate 1 and a protective cover 2. A bending hole 15 is opened on one side of the bottom plate 1, and a wire outlet assembly 18 is arranged in the bending hole 15. One end of the lower surface of the protective cover 2 is fixedly connected with a pressing block 16, and the horizontal cross - section of the pressing block 16 is smaller than the horizontal cross - section of the bending hole 15. A side hole 3 is opened on one side of the protective cover 2;

[0022] The wire outlet assembly 18 includes a lower circuit connection piece 181, a wire outlet film 182 and an end protection shell 183. One end of the lower circuit connection piece 181 and one end of the wire outlet film 182 are integrally formed. The other end of the wire outlet film 182 is bonded with the end protection shell 183. The connection end of the lower circuit connection piece 181 and the wire outlet film 182 is arranged inside the bending hole 15. Multiple groups of pin wires 185 are arranged inside the wire outlet film 182, and the multiple groups of pin wires 185 are arranged at equal intervals. A thermoplastic film 187 is arranged on the periphery of the wire outlet film 182.

[0023] One end of each of the multiple groups of pin wires 185 is provided with a wire end 186, and the wire end 186 is arranged inside the cavity of the end protection shell 183. One end of the end protection shell 183 is provided with a plug 184. The end protection shell 183 can wrap the wire end 186, thereby improving the service life of the wire end 186.

[0024] The lower circuit connection piece 181 is bonded to the upper surface of the bottom plate 1. A membrane switch electrically connected to the lower circuit connection piece 181 is arranged on the upper surface of the bottom plate 1. The bottom plate 1 and the protective cover 2 protect the membrane switch, thereby ensuring the service life of the membrane switch.

[0025] Two groups of limit frames 11 and connecting keys 12 are fixedly connected to the upper surface of the base plate 1. The connecting keys 12 are arranged between the two groups of limit frames 11, and connecting springs 13 are inserted on the opposite sides of the two groups of connecting frames. The lower circuit layer of the membrane switch is connected to the upper circuit layer through the connecting keys and the connecting springs 13, thereby connecting the circuit, which is convenient for testing the performance of the output wire assembly 18 after bending.

[0026] Both ends of the connecting spring piece 13 pass through the limit frame 11 and are fixedly connected with an anti-dropping piece 14. The lower surface of the protective cover 2 is provided with a bottom key 10 that contacts the connecting spring piece 13. The anti-dropping piece 14 can prevent the connecting spring piece 13 from detaching, thereby ensuring the stability of the circuit connection.

[0027] The upper surface of the base plate 1 is provided with a plurality of docking holes 8, and the lower surface of the protective cover 2 is fixedly connected with a plurality of docking blocks 9, and the plurality of docking blocks 9 are respectively inserted into the docking holes 8. By inserting the docking blocks 9 into the docking holes 8, the base plate 1 and the protective cover 2 are conveniently connected, thereby protecting the membrane switch installed in the inner cavities of the two and improving the service life of the membrane switch.

[0028] The lower surface of the protective cover 2 is bonded with a plurality of waterproof rings 17 through which the docking blocks 9 penetrate. The upper surface of the protective cover 2 is provided with a button 4, and the upper surface of the button 4 is bonded with a switch mark 5. The upper surface of the protective cover 2 is bonded with a power display mark 6 and a positive and negative pole mark 7. The switch mark 5 is convenient for accurate pressing during use, and the power display mark 6 is convenient for displaying the remaining power when detecting the power.

[0029] When in use, the normal process is followed in the early stage. After the circuit is formed and the outlet film 182 is pressed together with the wire end 186, the lower circuit connecting piece 181 that is inserted into it needs to be trimmed (the trimming length is half of its total length). After insertion, the trimmed position of the lower circuit connecting piece 181 and the outlet film 182 are bent 90°, and the exposed part is covered with heat shrink film and heated and shrunk using a hot air gun. This not only greatly reduces the assembly space of the equipment, but also increases the waterproof and insulating protection effect of the exposed part.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bending device that can improve the testing of membrane switch connectors, comprising a bottom plate (1) and a protective cover (2), characterized in that: A bending hole (15) is provided on one side of the bottom plate (1), an outlet assembly (18) is arranged in the bending hole (15), a pressing block (16) is fixedly connected to one end of the lower surface of the protective cover (2), the horizontal cross-section of the pressing block (16) is smaller than the horizontal cross-section of the bending hole (15), and a side hole (3) is provided on one side of the protective cover (2); The outlet assembly (18) comprises a lower circuit connection sheet (181), an outlet film (182) and an end protection shell (183); one end of the lower circuit connection sheet (181) and one end of the outlet film (182) are integrally formed; the other end of the outlet film (182) is bonded with the end protection shell (183); the connecting end between the lower circuit connection sheet (181) and the outlet film (182) is arranged inside the bending hole; a plurality of groups of pin wires (185) are arranged inside the outlet film (182), and the plurality of groups of pin wires (185) are arranged at equal intervals; and a thermoplastic film (187) is arranged on the periphery of the outlet film (182).

2. A bending device for improving the test of a membrane switch connector according to claim 1, characterized in that: One end of each of the plurality of groups of pin wires (185) is provided with a wire terminal (186), and the wire terminal (186) is arranged in the inner cavity of the terminal protection shell (183), and one end of the terminal protection shell (183) is provided with a plug (184).

3. A bending device for improving the test of a membrane switch connector according to claim 2, characterized in that: The lower circuit connection sheet (181) is bonded to the upper surface of the bottom plate (1), and a membrane switch electrically connected to the lower circuit connection sheet (181) is provided on the upper surface of the bottom plate (1).

4. A bending device for improving the test of a membrane switch connector according to claim 3, characterized in that: Two groups of limit frames (11) and connecting keys (12) are fixedly connected to the upper surface of the bottom plate (1), the connecting keys (12) are arranged between the two groups of limit frames (11), and connecting spring sheets (13) are inserted at opposite sides of the two groups of limit members.

5. A bending device for improving the test of a membrane switch connector according to claim 4, characterized in that: Both ends of the connecting spring sheet (13) penetrate the limiting frame (11) and are fixedly connected to an anti-drop sheet (14); a bottom key (10) that contacts the connecting spring sheet (13) is provided on the lower surface of the protective cover (2).

6. A bending device for improving the test of a membrane switch connector according to claim 5, characterized in that: The upper surface of the bottom plate (1) is provided with a plurality of docking holes (8), the lower surface of the protective cover (2) is fixedly connected with a plurality of docking blocks (9), and the plurality of docking blocks (9) are respectively inserted into the pairs of docking holes (8).

7. A bending device for improving the test of a membrane switch connector according to claim 6, characterized in that: The lower surface of the protective cover (2) is bonded with a plurality of waterproof rings (17) through which the docking blocks (9) penetrate. The upper surface of the protective cover (2) is provided with a button (4), and the upper surface of the button (4) is bonded with a switch mark (5). The upper surface of the protective cover (2) is bonded with a power display mark (6) and a positive and negative pole mark (7).

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