A waterproof switch

Abstract

The present invention discloses a waterproof switch, which includes a face sticker, an upper housing, a lower housing, a metal elastic sheet, a battery, a battery holder, and a circuit board with a control circuit. The battery holder is welded to the circuit board, and the battery is fixed to the circuit board through the battery holder to supply power to the circuit board. The IO port of the control circuit is connected to the negative electrode of the battery through a current-limiting resistor and is in a low-level state, or the IO port of the control circuit is connected to the positive electrode of the battery through a current-limiting resistor and is in a high-level state. The metal elastic sheet is welded to the circuit board and is connected to the control circuit through the circuit board. The metal elastic sheet is suspended above the positive or negative electrode of the battery. The upper housing and the lower housing are welded together by glue or ultrasonically welded to form an outer shell. The metal elastic sheet, the battery, the battery holder, and the circuit board with the control circuit are sealed in the outer shell, and the outer shell has a waterproof function. The present invention meets the condition of minimizing the space in compact electronic products while also having a waterproof function.

Description

Technical Field

[0001] The present invention relates to a waterproof switch. Background Art

[0002] To change the circuit state, a switch signal is needed for triggering. Usually, switch components are used. The switch components have two conductors. By pressing, the conductors are connected or disconnected to achieve the purpose of an electrical switch. In the application of a single-chip microcomputer, generally, the IO (input / output) port is pulled up to the power supply of the single-chip microcomputer through a current-limiting resistor, so that the IO port is in a high-level state. For the two conductors of the switch component, one is connected to the IO port of the single-chip microcomputer, and the other is connected to the power ground. When the switch is pressed, the two conductors are conducted, and the IO port of the single-chip microcomputer is connected to the power ground. At this time, the IO port is in a low level. Through the change of the high and low levels, the single-chip microcomputer obtains a trigger signal. With the trigger signal, the single-chip microcomputer runs according to a certain logic and implements a predetermined control logic.

[0003] Using switch components requires a certain amount of space. Especially in applications where waterproofing is required, waterproof treatment of the pressing handle, switch components, circuit, etc. needs to be considered. Summary of the Invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a waterproof switch.

[0005] The present invention is realized through the following technical solutions: A waterproof switch includes a face sticker, an upper housing, a lower housing, a metal elastic sheet, a battery, a battery holder, and a circuit board with a control circuit. It is characterized in that the battery holder is welded on the circuit board, and the battery is fixed on the circuit board through the battery holder to supply power to the circuit board. The IO port of the control circuit is connected to the negative pole of the battery through a current-limiting resistor and is in a low-level state, or the IO port of the control circuit is connected to the positive pole of the battery through a current-limiting resistor and is in a high-level state. The metal elastic sheet is welded on the circuit board and is connected to the control circuit through the circuit board. The metal elastic sheet is suspended above the positive or negative pole of the battery. The upper housing and the lower housing are welded together with glue or ultrasonically welded to form an outer shell. The metal elastic sheet, the battery, the battery holder, and the circuit board with a control circuit are sealed in the outer shell, and the outer shell has a waterproof function.

[0006] Preferably, the upper housing is injection-molded and has a button handle with a hollowed-out perimeter. The button handle is connected to the main body of the upper housing through an arm. The face sticker is adhered to the upper housing with glue or non-drying adhesive.

[0007] Preferably, the button handle and the upper housing are integrally formed.

[0008] Preferably, the position of the button handle on the upper housing corresponds to the metal elastic sheet. Pressing the sticker drives the button handle to move in the direction of finger movement, and the metal elastic sheet is simultaneously driven to move in the direction of the finger until it touches the positive or negative electrode of the battery. A trigger signal is obtained by connecting the IO port of the control circuit to the positive electrode of the battery to flip to a high level or the negative electrode to a low level. Releasing the pressure on the sticker, the metal elastic sheet and the button handle of the upper housing return to their original states by their own elasticity, so that the metal elastic sheet has no contact with the battery and the IO port returns to its original state.

[0009] Preferably, the sticker is adhered to the upper housing with glue or non-drying adhesive.

[0010] Preferably, the metal elastic sheet has three pins, and the elastic sheet is suspended above the battery by covering the battery holder.

[0011] Preferably, the pins are round tubular or flat.

[0012] Preferably, the sticker has a switch indication mark.

[0013] Preferably, the upper housing includes a cylindrical structure.

[0014] Preferably, the lower surface of the upper housing has 12 protrusions distributed circumferentially.

[0015] The present invention has the following beneficial effects: The present invention meets the condition of minimizing space as much as possible in the design of compact electronic products, and at the same time has a waterproof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the following embodiments or the description of the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is an exploded view of the present invention.

[0018] Figure 2 is a top view of the upper housing of the present invention.

[0019] Figure 3 is a bottom view of the upper housing of the present invention.

[0020] Figure 4 is an assembly drawing of the metal elastic sheet, battery, battery holder and circuit board with a control circuit in the present invention.

[0021] Figure 5 is a perspective view of the present invention.

[0022] Figure 6 It is a schematic diagram of the shape of a metal shrapnel.

[0023] In the figure: 1. Lower housing; 2. Circuit board; 3. Battery holder; 4. Battery; 5. Metal shrapnel; 6. Upper housing; 7. Face sticker; 8. Cylindrical housing; 9. Button handle; 10. Protrusion; 11. First pin; 12. Second pin; 13. Positioning handle; 14. Tubular pin; 15. Flat pin. Specific embodiments

[0024] 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.

[0025] Refer to the attached instructions Figure 1 , A waterproof switch includes a face sticker 7, an upper housing 6, a lower housing 1, a metal shrapnel 5, a battery 4, a battery holder 3 and a circuit board 2 with a control circuit. The battery holder 3 is welded on the circuit board, and the battery 4 is fixed on the circuit board 2 through the battery holder 3 to supply power to the circuit board 2. The IO port of the control circuit is connected to the negative electrode of the battery through a current-limiting resistor and is in a low-level state, or the IO port of the control circuit is connected to the positive electrode of the battery through a current-limiting resistor and is in a high-level state. The metal shrapnel 5 is welded on the circuit board 2 and is connected to the control circuit through the circuit board 2. The metal shrapnel 5 is suspended above the positive or negative electrode of the battery 4. The upper housing 6 and the lower housing 1 are joined by glue welding or ultrasonic welding to form a housing. The metal shrapnel 5, the battery 4, the battery holder 3 and the circuit board 2 with a control circuit are sealed in the housing, and the housing has a waterproof function.

[0026] Specific details are as shown in the attached instructions Figures 2 - 4 As shown, as shown in the attached instructions Figure 2 For the upper housing 6 of the waterproof switch shown, it has a cylindrical housing 8. The cylindrical housing 8 is injection-molded and its upper surface is provided with a button handle 9 with a hollowed-out perimeter. The button handle 9 is connected to the main body of the upper housing through a moving arm, and the button handle and the upper housing are integrally formed.

[0027] As shown in the attached instructions Figure 1As shown, the sticker is adhered to the upper surface of the button handle 9 with glue or adhesive tape. A switch mark is provided on the sticker. That is, by pressing the sticker according to the switch mark, since the position of the button handle 9 on the upper housing corresponds to the metal elastic sheet 5, pressing the sticker drives the button handle 9 to move in the direction of finger movement, and the metal elastic sheet 5 is simultaneously driven to move in the direction of the finger until it touches the positive or negative electrode of the battery. A trigger signal is obtained by connecting the IO port of the control circuit to the positive electrode of the battery to flip to a high level or the negative electrode to a low level. When releasing the pressure on the sticker, the metal elastic sheet 5 and the button handle of the upper housing return to their original states by their own elasticity, so that the metal elastic sheet 5 has no contact with the battery and the IO port returns to its original state.

[0028] As shown in the attached instructions Figure 3 As shown, the lower surface of the cylindrical housing 8 of the upper housing 6 has 12 protrusions for isolating the button handle 9 on the upper surface of the cylindrical housing 8 from the metal elastic sheet 5, so that the button handle 9 can contact the metal elastic sheet 5 only when pressed to a certain extent, and the metal elastic sheet is pushed to contact the battery to energize the control circuit, preventing mis-triggering caused by small disturbances of the button handle. The 12 protrusions are evenly distributed in a circular shape, so that the upper surface of the cylindrical housing 8 and the metal elastic sheet 5 have the same interval at each position.

[0029] As shown in the attached instructions Figure 4 As shown, it is an assembly diagram of the metal elastic sheet, battery, battery holder and circuit board with a control circuit in the present invention. The metal elastic sheet 6 has three pins, and the elastic sheet is suspended above the battery by covering the battery holder. The reason for setting three pins is to utilize the principle of high triangular stability, firmness and pressure resistance, which can ensure that the metal elastic sheet 6 can be stably suspended above the battery 4. Among the three pins shown, the first pin 11 for welding to the circuit board and the second pin 12 for suspending above the battery 4 by covering the battery holder 3 are included. The length of the first pin 11 is longer than that of the second pin, but the second pin 12 only covers the battery holder 3 and is not connected to the battery holder 3.

[0030] As shown in the attached instructions Figure 5 As shown, a positioning handle 13 is also injection-molded on the lower housing for fixing and positioning the waterproof switch.

[0031] As shown in the attached instructions Figure 6 As shown, the pins are circular tubular 14 or flat 15.

[0032] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously mentioned, it should be understood that the present invention is not limited to the forms disclosed herein, and should not be regarded as excluding other embodiments. Instead, it can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the above teachings or the skills or knowledge in related fields. Any alterations and changes made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A waterproof switch, comprising a face sticker, an upper housing, a lower housing, a metal shrapnel, a battery, a battery holder and a circuit board with a control circuit, characterized in that, The battery holder is welded to the circuit board, and the battery is fixed to the circuit board through the battery holder to supply power to the circuit board. The IO port of the control circuit is connected to the negative electrode of the battery through a current-limiting resistor and is in a low-level state, or the IO port of the control circuit is connected to the positive electrode of the battery through a current-limiting resistor and is in a high-level state. The metal shrapnel is welded to the circuit board and connected to the control circuit through the circuit board. The metal shrapnel is suspended above the positive or negative electrode of the battery. The metal shrapnel has three pins, including a first pin welded to the circuit board and a second pin suspended above the battery by covering the battery holder. The length of the first pin is longer than that of the second pin. The second pin only covers the battery holder and is not electrically connected to the battery holder. The upper shell is injection-molded and has a button handle with a hollowed-out perimeter. The button handle is connected to the main body of the upper shell through a moving arm. The upper shell and the lower shell are welded together with glue or ultrasonically welded to form a housing. The metal shrapnel, the battery, the battery holder, and the circuit board with a control circuit are sealed in the housing, and the housing has a waterproof function; The position of the button handle of the upper shell corresponds to the metal shrapnel. Pressing the sticker drives the button handle to move in the direction of the finger movement. The metal shrapnel is simultaneously driven to move in the direction of the finger until it touches the positive or negative electrode of the battery. A trigger signal is obtained by flipping the connection of the IO port of the control circuit to the positive or negative electrode of the battery to a high level or a low level. Release the pressure on the sticker, and the metal shrapnel and the button handle of the upper shell return to their original states by their own elasticity, so that the metal shrapnel has no contact with the battery and the IO port returns to its original state.

2. The waterproof switch according to claim 1, characterized in that, The sticker is pasted on the upper shell with glue or adhesive.

3. The waterproof switch according to claim 2, characterized in that, The button handle and the upper shell are integrally formed.

4. The waterproof switch according to claim 1, characterized in that, The pins are round tubular or flat.

5. The waterproof switch according to any one of claims 1-3, characterized in that, The sticker has a switch indication mark.

6. The waterproof switch according to any one of claims 1 to 3, characterized in that The upper shell includes a cylindrical shell.

7. The waterproof switch according to any one of claims 1-3, characterized in that, The lower surface of the upper shell has 12 circumferentially distributed protrusions.

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