Waterproof touch switch

Abstract

The utility model relates to a waterproof touch switch. The technical problem to be solved by the utility model is to provide a waterproof touch switch. According to the technical scheme, the switch comprises a switch base, a switch upper seat, a switch button, a silica gel separation pad, a waterproof film, a middle connection block, a metal dome and a second connection terminal, the end portion of the metal dome is in contact with a first connection terminal, a button top is arranged at the bottom of the switch button, and the silica gel separation pad comprises a separation pad circular portion and a separation pad limiting portion. A water sinking groove is formed in the middle of the circular part of the separation pad, a separation pad butt joint surface is arranged in the middle of the water sinking groove, and a drainage channel is formed in the position, at the separation pad limiting part, of the water sinking groove. Compared with the prior art, the switch has the advantages that the structure of the sink tank and the drainage channel effectively solves the problem of water accumulation, avoids poor contact caused by water retention, ensures that the interior of the switch is kept dry, and effectively improves the overall waterproofness and safety of the switch.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waterproof microswitch. BACKGROUND

[0002] The microswitch is a kind of switch device widely used in various electrical equipment, and is mainly used to realize the connection or disconnection of circuit.The microswitch generally includes switch base, switch upper seat, switch button arranged in the switch base, potzai piece with the first wiring terminal contact at the end, second wiring terminal, the middle part of potzai piece is contacted with the second wiring terminal by pressing switch button, so that the first wiring terminal and the second wiring terminal are connected, and the existing microswitch has gap at the action place of switch button and switch upper seat, once moisture enters the inside of switch, the stability and contact performance of internal electrical components are easily affected, and then circuit contact failure, short circuit and other problems are caused, the safety and service life of switch are reduced, and optimization is carried out for this. SUMMARY

[0003] To solve the above problems, the technical problem to be solved by the utility model is to provide a waterproof microswitch.

[0004] The utility model discloses a waterproof microswitch adopts the technical scheme: its characterized in that including switch base, switch upper seat, switch button, silica gel separation pad, waterproof membrane, middle block, potzai piece, second wiring terminal are sequentially arranged from top to bottom in the switch base, the switch button is driven silica gel separation pad, waterproof membrane and middle block are moved downward by pressing, so that the middle part of potzai piece is contacted with the second wiring terminal, and the first wiring terminal and the second wiring terminal are connected;

[0005] The bottom of switch button is equipped with button top head, the silica gel separation pad includes separation pad circular part and separation pad limiting portion arranged at four end portions of separation pad circular part, the middle part of separation pad circular part is equipped with sinking groove, the middle part of sinking groove is equipped with separation pad butt joint surface opposite to button top head, sinking groove is equipped with drainage channel at separation pad limiting portion, waterproof membrane is attached at the bottom of silica gel separation pad, the first mounting groove of base is arranged on the switch base for the installation of silica gel separation pad, the main installation cavity of base is arranged in the middle part of the first mounting groove of base for the installation of middle block, first wiring terminal and second wiring terminal, the bottom of switch upper seat is equipped with upper seat butt joint pressure block corresponding to the first mounting groove of base.

[0006] The sinking groove is conical structure, and the inner height is higher than the outer height.

[0007] The first mounting groove of the base is provided with a water-blocking rim outside the main mounting cavity of the base, and the bottom of the circular part of the partition pad is provided with a lower positioning groove of the partition pad corresponding to the water-blocking rim.

[0008] The partition pad limiting part is provided with a partition pad limiting hole, the waterproof membrane is provided with a waterproof membrane limiting hole, the upper seat docking pressure block is provided with an upper seat docking hole, and the base first mounting groove is provided with a base positioning post. The base positioning post passes through the waterproof membrane limiting hole and the partition pad limiting hole in sequence and then docks with the upper seat docking hole.

[0009] The switch button includes a button mounting base and a button pressing head disposed on the button mounting base, and the button top is provided at the bottom of the button mounting base;

[0010] The upper seat docking pressure block has an upper seat mounting cavity in the middle for positioning the button mounting base, and the upper seat mounting cavity has an upper seat actuation hole for the button pressing head to pass through.

[0011] The advantages of this waterproof tactile switch are: the combination of silicone spacer pad and waterproof membrane design prevents water from entering the switch; the structure of the water tank and drainage channel effectively solves the problem of water accumulation, avoids water retention and poor contact, ensures that the inside of the switch remains dry, and effectively improves the overall waterproofness and safety of the switch. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the waterproof tactile switch of this utility model;

[0014] Figure 2 This is an exploded view of the waterproof tactile switch of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the switch button of this utility model;

[0016] Figure 4 This is a front structural diagram of the silicone spacer pad of this utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the waterproof membrane of this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the switch base of this utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the switch upper base of this utility model;

[0020] Figure 8 This is a schematic diagram of the back structure of the silicone spacer pad of this utility model. Detailed Implementation

[0021] like Figures 1-8 As shown, the waterproof tactile switch of this utility model includes a switch base 1, a switch upper seat 2, a switch button 3, a silicone spacer 4, a waterproof membrane 5, a center block 6, a dome switch 7 whose end contacts a first terminal 8, and a second terminal 9, arranged sequentially from top to bottom within the switch base 1. When the switch button 3 is pressed down, it causes the silicone spacer 4, the waterproof membrane 5, and the center block 6 to move downwards, so that the middle of the dome switch 7 contacts the second terminal 9, connecting the first terminal 8 and the second terminal 9. The switch button 3 has a button top 10 at its bottom. The silicone spacer 4 includes a circular spacer portion 11 and spacer limiting portions 12 at the four ends of the circular spacer portion 11. The circular spacer portion 11 has a water-receiving groove 13 in its center, and the water-receiving groove 13 has a part in its center that contacts the button top 10. The separator pad mating surface 14, the sink trough 13 has a drainage channel 15 at the separator pad limiting part 12, the waterproof membrane 5 is attached to the bottom of the silicone separator pad 4, the switch base 1 has a base first mounting groove 16 for mounting the silicone separator pad 4, the base first mounting groove 16 has a base main mounting cavity 18 in the middle for mounting the intermediate block 6, the first terminal 8 and the second terminal 9, and the bottom of the switch upper seat 2 has an upper seat mating pressure block 19 corresponding to the base first mounting groove 16. The silicone separator pad 4 and waterproof membrane 5 are designed together to block water before it enters the switch. The structure of the sink trough 13 and the drainage channel 15 effectively solves the problem of water accumulation, avoids water retention and poor contact, ensures that the inside of the switch is kept dry, and effectively improves the overall waterproofness and safety of the switch.

[0022] The submersion tank 13 has a conical structure, with a higher inner surface and a lower outer surface, which facilitates the timely and rapid discharge of water that enters the silicone separator 4 through the gap.

[0023] The first mounting groove 16 of the base is provided with a water-blocking edge 21 outside the main mounting cavity 18 of the base. The bottom of the circular part 11 of the separator pad is provided with a lower positioning groove 22 corresponding to the water-blocking edge 21. The water-blocking edge 21 serves to block water and can be used for the installation and positioning of the silicone separator pad 4.

[0024] The partition pad limiting part 12 is provided with a partition pad limiting hole 24, the waterproof membrane 5 is provided with a waterproof membrane limiting hole 25, the upper seat docking pressure block 19 is provided with an upper seat docking hole 26, and the base first mounting groove 16 is provided with a base positioning post 27. The base positioning post 27 passes through the waterproof membrane limiting hole 25 and the partition pad limiting hole 24 in sequence and then docks with the upper seat docking hole 26 to ensure precise positioning between the components, reduce loosening or displacement caused by vibration or long-term use, and improve the stability and reliability of use.

[0025] The switch button 3 includes a button mounting base 30 and a button pressing head 31 disposed on the button mounting base 30. The button mounting base 30 has a button top 10 at its bottom. The upper seat mating block 19 has an upper seat mounting cavity 33 in the middle for positioning the button mounting base 30. The upper seat mounting cavity 33 has an upper seat actuation hole 34 for the button pressing head 31 to pass through. The installation and disassembly process is faster and the connection between components is more stable.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A waterproof tactile switch, characterized by: The utility model provides a waterproof switch, including switch base (1), switch upper seat (2), switch button (3) that sets from top to bottom in the switch base (1) in sequence, silica gel separation pad (4), waterproof membrane (5), middle block (6), end and first wiring terminal (8) contact's pot piece (7), second wiring terminal (9), the switch button (3) is pressed down and drives silica gel separation pad (4), waterproof membrane (5) and middle block (6) move down, make the middle part of pot piece (7) and second wiring terminal (9) touch, first wiring terminal (8) and second wiring terminal (9) are connected, The bottom of the switch button (3) is provided with a button top head (10), the silica gel separation pad (4) includes a separation pad circular part (11) and a separation pad limiting part (12) arranged at four ends of the separation pad circular part (11), the middle part of the separation pad circular part (11) is provided with a sunken groove (13), the middle part of the sunken groove (13) is provided with a separation pad butt joint surface (14) opposite to the button top head (10), the sunken groove (13) is provided with a drainage channel (15) at the separation pad limiting part (12), the waterproof membrane (5) is attached to the bottom of the silica gel separation pad (4), the switch base (1) is provided with a base first mounting groove (16) for mounting the silica gel separation pad (4), the middle part of the base first mounting groove (16) is provided with a base main mounting cavity (18) for mounting the middle block (6), the first wiring terminal (8) and the second wiring terminal (9), the bottom of the switch upper seat (2) is provided with an upper seat butt joint pressing block (19) corresponding to the base first mounting groove (16).

2. The waterproof membrane switch according to claim 1, wherein: The sunken groove (13) is a tapered structure with a high inner part and a low outer part.

3. The waterproof membrane switch according to claim 1, wherein: The base first mounting groove (16) is provided with a water blocking surrounding edge (21) outside the base main mounting cavity (18), and the bottom of the separation pad circular part (11) is provided with a separation pad lower positioning groove (22) corresponding to the water blocking surrounding edge (21).

4. The waterproof membrane switch according to claim 1, wherein: The separation pad limiting part (12) is provided with a separation pad limiting hole (24), the waterproof membrane (5) is provided with a waterproof membrane limiting hole (25), the upper seat butt joint pressing block (19) is provided with an upper seat butt joint hole (26), and the base first mounting groove (16) is provided with a base positioning column (27) which passes through the waterproof membrane limiting hole (25), the separation pad limiting hole (24) and the upper seat butt joint hole (26) in sequence.

5. The waterproof membrane switch according to claim 1, wherein: The switch button (3) includes a button mounting seat (30) and a button pressing head (31) arranged on the button mounting seat (30), and the bottom of the button mounting seat (30) is provided with the button top head (10); The middle part of the upper seat butt joint pressing block (19) is provided with an upper seat mounting cavity (33) for positioning the button mounting seat (30), and the upper seat mounting cavity (33) is provided with an upper seat action hole (34) for passing through the button pressing head (31).

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