Capacitive touch button switch

Abstract

The utility model relates to a capacitive touch button switch, which relates to the technical field of touch switches, and comprises a shell, a positioning ring is arranged at one end of the shell, a circuit board is detachably connected in the positioning ring, a touch sheet electrically connected with the circuit board is arranged in the positioning ring, one end of the circuit board is located in the positioning ring, and the other end of the circuit board is located in the positioning ring. The part, exposed out of the positioning ring, of the circuit board is sleeved with a shielding cover, and an electroplating shielding layer is arranged on the shielding cover. The mounting process is simplified, the assembly difficulty is reduced, and the production efficiency can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of touch switch technology, and in particular to a capacitive touch button switch. Background Technology

[0002] In related technologies, capacitive touch button switches are widely used in automated equipment. Some touch button switches require wrapping a metal sheet around the circuit board to prevent interference. Connecting the metal sheet to the circuit board with wires to achieve interference suppression is costly, involves complex assembly processes, requires skilled soldering workers, and results in low interference suppression and unstable product performance. Summary of the Invention

[0003] To facilitate assembly, this application provides a capacitive touch button switch.

[0004] The capacitive touch button switch provided in this application adopts the following technical solution:

[0005] A capacitive touch button switch includes a housing, a positioning ring at one end of the housing, a circuit board detachably connected inside the positioning ring, a touch piece electrically connected to the circuit board inside the positioning ring, one end of the circuit board located inside the positioning ring, and a shielding cover covering the portion of the circuit board exposed outside the positioning ring, with an electroplated shielding layer on the shielding cover.

[0006] By adopting the above technical solution, the circuit board can be detachably installed in the shielding cover and the positioning ring, thereby assembling the shielding cover and the positioning ring. The assembled positioning ring and the shielding cover are installed in the outer shell, which effectively simplifies the process, reduces the assembly difficulty, and can effectively improve production efficiency.

[0007] In addition, embedding the circuit board inside the shielding cover and thus isolating it from the outside world can effectively improve the circuit board's anti-interference ability.

[0008] Optionally, the inner wall of the shielding cover is integrally provided with a shielding slot, and the circuit board is inserted into the shielding slot at one end inside the shielding cover.

[0009] By adopting the above technical solution, the circuit board is inserted into the shielding slot, thus achieving a detachable connection between the circuit board and the shielding cover.

[0010] Optionally, the shielding slot includes several fixing blocks disposed on the inner wall of the shielding cover, with a gap between two adjacent fixing blocks for inserting the circuit board, and a positioning plate for abutting the circuit board at one end of the fixing block.

[0011] By adopting the above technical solution, one end of the circuit board is inserted into the gap between two adjacent fixing blocks, and the insertion end of the circuit board is abutted by the locking plate, so as to avoid the circuit board being over-inserted and damaged.

[0012] Optionally, the inner wall of the shielding cover is provided with a number of guide grooves corresponding to the fixed blocks, and the guide grooves are connected to the gap between two adjacent fixed blocks.

[0013] By adopting the above technical solution, workers can quickly snap the circuit board and shielding cover together during assembly, effectively speeding up the installation time.

[0014] Optionally, the positioning ring is provided with several locking blocks that are integrally connected to the positioning ring, and a gap is formed between two adjacent locking blocks for the insertion of the circuit board.

[0015] By adopting the above technical solution, the circuit board can be detachably connected to the positioning ring by inserting it into the gap between two adjacent blocks.

[0016] Optionally, one end of the positioning ring is integrally connected to a mounting ring, the positioning ring extends into the housing, and the mounting ring is engaged with the housing.

[0017] By adopting the above technical solution, the positioning ring is installed inside the housing through the snap-fit ​​connection between the mounting ring and the housing.

[0018] Optionally, one end of the circuit board is provided with a touch spring that is electrically connected to the touch pad, and the touch spring abuts against the touch pad.

[0019] By adopting the above technical solution, in related technologies, circuit boards are generally connected to touch pads by soldering wires. This application uses touch springs to replace wires, which can effectively improve the efficiency of assembly. At the same time, touch springs have reset and rigidity, which can ensure that they are always in contact with touch pads and effectively prevent the circuit board from disconnecting from the touch pad.

[0020] Optionally, the circuit board is equipped with a touch-activated LED, and the positioning ring is made of a light-transmitting material.

[0021] By adopting the above technical solution, the light from the small lamp can be transmitted to the outside through the positioning ring, making it convenient for the user to observe.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The shielding cover is integrally molded, and workers only need to assemble the shielding cover with the circuit board, which effectively simplifies the installation process, reduces the assembly difficulty, and can effectively improve production efficiency;

[0024] 2. The circuit board is encased in a shielding cover, which isolates it from the outside world and effectively improves its anti-interference capability. Attached Figure Description

[0025] Figure 1 This is an exploded view of an embodiment of this application;

[0026] Figure 2This is a schematic diagram of the positioning ring in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the shielding cover in an embodiment of this application.

[0028] Figure descriptions: 1. Outer shell; 2. Positioning ring; 3. Touch plate; 4. Circuit board; 5. Shielding cover; 6. Mounting slot; 7. Connection hole; 8. Touch slot; 9. Guide slot; 10. Wiring hole; 11. Mounting ring; 12. Locking block; 13. Touch spring; 14. Locking plate; 15. Fixing block. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0030] A capacitive touch button switch, as shown in the reference Figure 1 The device includes a housing 1 with a connecting hole 7 extending through it axially. A light-transmitting positioning ring 2 is installed at one end of the housing 1. A touch piece 3 is installed on the side of the positioning ring 2 away from the housing 1. A circuit board 4 electrically connected to the touch piece 3 is inserted into the positioning ring 2. A shielding cover 5 is fitted on the outside of the circuit board 4. After the shielding cover 5 is integrally formed, an electroplated shielding layer is provided on its surface.

[0031] The outer casing 1 has a mounting groove 6 on the side where the touch piece 3 is located. The mounting groove 6 and the connecting hole 7 are coaxially arranged, forming a stepped mounting structure between the mounting groove 6 and the connecting hole 7. One end of the positioning ring 2 is provided with an integrally connected mounting ring 11, the inner diameter of the mounting ring 11 being smaller than the inner diameter of the positioning ring 2. The positioning ring 2 extends into the connecting hole 7, and the mounting ring 11 is embedded in the mounting groove 6.

[0032] Reference Figure 1 , Figure 2 The mounting ring 11 has a touch groove 8, and the touch piece 3 is embedded in the touch groove 8. The positioning ring 2 has two sets of symmetrical locking groups, and each group includes two locking blocks 12. One end of the locking block 12 is integrally connected to the mounting ring 11, and the side wall of the locking block 12 is integrally connected to the inner wall of the positioning ring 2.

[0033] A gap is left between the two locking blocks 12 in the locking block assembly, and they cooperate with the side of the mounting ring 11 near the outer shell 1 and the inner wall of the positioning ring 2 to form a positioning slot. One end of the circuit board 4 extends into the two positioning slots and abuts against the inner walls of the mounting ring 11 and the positioning ring 2.

[0034] One end of the circuit board 4, which extends into the positioning slot, is fixedly connected to one end of the touch spring 13. The other end of the touch spring 13 passes through the mounting ring 11 and abuts against the touch piece 3. The circuit board 4 and the touch piece 3 are electrically connected through the touch spring 13.

[0035] Reference Figure 1 , Figure 3 The shielding cover 5 is integrally connected to the positioning plate 14 on the side away from the positioning ring 2. The shielding cover 5 is provided with two sets of symmetrical fixing groups, and each fixing group includes two fixing blocks 15. The side wall of the fixing block 15 is integrally connected to the inner wall of the shielding cover 5, and one end of the fixing block 15 is integrally connected to the positioning plate 14.

[0036] A gap is left between the two fixing blocks 15 in the fixing group, and they cooperate with the side of the positioning plate 14 near the positioning ring 2 and the inner wall of the shielding cover 5 to form a shielding slot. The end of the circuit board 4 away from the touch spring 13 extends into the shielding slot and abuts against the inner wall of the positioning plate 14 and the shielding cover 5.

[0037] The inner wall of the shielding cover 5 has two symmetrically arranged guide grooves 9, with an opening at one end of the shielding cover 5 near the positioning ring 2. The inner wall of the guide groove 9 and the opposite side walls of the two fixing blocks 15 in the fixing assembly are coplanar, and the guide groove 9 and the two shielding slots are interconnected.

[0038] The circuit board 4 is inserted into the two guide grooves 9 on both sides. The two guide grooves 9 limit and push the circuit board 4 to slide within the guide grooves 9, thereby inserting the end of the circuit board 4 into the shielding slot. After the circuit board 4, shielding cover 5, and positioning ring 2 are installed in place, the shielding cover 5 abuts against the positioning ring 2.

[0039] The card plate 14 has an axially oriented wiring hole 10, through which the wires connected to the circuit board 4 pass.

[0040] The implementation principle of this application embodiment is as follows: the circuit board 4 is fixedly connected to one end of the touch spring 13 by welding to form an electrical connection. Then, the circuit board 4 is inserted and snapped into the positioning slot of the positioning ring 2. At this time, the other end of the touch spring 13 abuts against the touch piece 3.

[0041] Next, the circuit board 4 is inserted into the shielding slot along the guide groove 9 of the shielding cover 5, so that the circuit board 4 and the shielding cover 5 are engaged. After installation, the shielding cover 5 abuts against the positioning ring 2.

[0042] Subsequently, the assembled positioning ring 2 and shield 5 are inserted into the outer shell 1, and the side of the mounting ring 11 closest to the outer shell 1 abuts against the bottom of the mounting groove 6.

[0043] Finally, the end of the housing 1 facing away from the touch piece 3 is sealed with glue, and the wires extend out of the sealant, thus completing the overall fixation.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A capacitive touch button switch, comprising a housing (1), wherein a positioning ring (2) is provided at one end of the housing (1), a circuit board (4) is detachably connected inside the positioning ring (2), and a touch piece (3) electrically connected to the circuit board (4) is provided inside the positioning ring (2), characterized in that: One end of the circuit board (4) is located inside the positioning ring (2), and the part of the circuit board (4) exposed outside the positioning ring (2) is fitted with a shielding cover (5), and an electroplated shielding layer is provided on the shielding cover (5).

2. A capacitive touch button switch according to claim 1, characterized in that: The inner wall of the shielding cover (5) is integrally provided with a shielding slot, and one end of the circuit board (4) inside the shielding cover (5) is inserted into the shielding slot.

3. A capacitive touch button switch according to claim 2, characterized in that: The shielding slot includes several fixing blocks (15) disposed on the inner wall of the shielding cover (5). A gap for inserting the circuit board (4) is provided between two adjacent fixing blocks (15). A positioning plate (14) for abutting the circuit board (4) is provided at one end of the fixing block (15).

4. A capacitive touch button switch according to claim 3, characterized in that: The inner wall of the shield (5) is provided with a number of guide grooves (9) corresponding to the number of fixed blocks (15), and the guide grooves (9) are connected to the gap between two adjacent fixed blocks (15).

5. A capacitive touch button switch according to claim 2, characterized in that: The positioning ring (2) is provided with a plurality of locking blocks (12) integrally connected to the positioning ring (2), and a gap is formed between two adjacent locking blocks (12) for inserting the circuit board (4).

6. A capacitive touch button switch according to claim 5, characterized in that: The positioning ring (2) is integrally connected to an installation ring (11) at one end. The positioning ring (2) extends into the outer shell (1), and the installation ring (11) is engaged with the outer shell (1).

7. A capacitive touch button switch according to claim 1, characterized in that: One end of the circuit board (4) is provided with a touch spring (13) electrically connected to the touch sheet (3), and the touch spring (13) abuts against the touch sheet (3).

8. A capacitive touch button switch according to claim 1, characterized in that: The circuit board (4) is equipped with a small light for touch activation, and the positioning ring (2) is made of a light-transmitting material.

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