CN111681899A - Waterproof switch - Google Patents

Waterproof switch Download PDF

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Publication number
CN111681899A
CN111681899A CN201910180583.3A CN201910180583A CN111681899A CN 111681899 A CN111681899 A CN 111681899A CN 201910180583 A CN201910180583 A CN 201910180583A CN 111681899 A CN111681899 A CN 111681899A
Authority
CN
China
Prior art keywords
battery
circuit board
elastic sheet
shell
metal elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910180583.3A
Other languages
Chinese (zh)
Inventor
林耀亮
赵洋洋
杨钦华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tuoba Xiamen Electronics Co ltd
Original Assignee
Tuoba Xiamen Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tuoba Xiamen Electronics Co ltd filed Critical Tuoba Xiamen Electronics Co ltd
Priority to CN201910180583.3A priority Critical patent/CN111681899A/en
Publication of CN111681899A publication Critical patent/CN111681899A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries

Abstract

The invention discloses a waterproof switch, which comprises a surface paste, an upper shell, a lower shell, a metal elastic sheet, a battery seat and a circuit board with a control circuit, the battery seat is welded on the circuit board, the battery is fixed on the circuit board through the battery seat to supply power to the circuit board, the IO port of the control circuit is connected with the cathode 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 with the anode 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 overhead above the anode or the cathode of the battery, the upper shell and the lower shell are welded through glue or ultrasonic waves to form a shell, the metal elastic sheet, the battery seat and the circuit board with the control circuit are sealed in the shell, and the shell has a waterproof function. The waterproof structure meets the condition that the space of a compact electronic product is reduced as much as possible, and has a waterproof function.

Description

Waterproof switch
Technical Field
The invention relates to a waterproof switch.
Background
In order to change the circuit state, a switching signal is used for triggering, and a switching element is generally used, wherein the switching element is provided with two conductors, and the purpose of electric switching is achieved by connecting or disconnecting the conductors through pressing. In the application of the single chip microcomputer, an input/output (IO) port is generally pulled up to a power supply of the single chip microcomputer through a current-limiting resistor, the IO port is in a high level state, two conductors of a switch component are switched, one conductor is connected to the IO port of the single chip microcomputer, the other conductor is connected to a power ground, when the switch is pressed, the two conductors are conducted, the IO port of the single chip microcomputer is connected to the power ground, and at the moment, the IO port is in a low level. Through the change of high and low levels, the single chip microcomputer obtains a trigger signal, and when the trigger signal exists, the single chip microcomputer operates according to a certain logic and implements a set control logic.
The adoption of the switch component needs to occupy a certain space, and particularly in the application occasions needing water proofing, the consideration of the water proofing treatment of the pressing handle and the switch component, the circuit and the like is needed.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a waterproof switch.
The invention is realized by the following technical scheme: a waterproof switch comprises a surface paste, an upper shell, a lower shell, a metal elastic sheet, a battery holder and a circuit board with a control circuit, it is characterized in that the battery seat is welded on the circuit board, the battery is fixed on the circuit board through the battery seat to supply power to the circuit board, the IO port of the control circuit is connected with the cathode 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 with the anode 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 overhead above the anode or the cathode of the battery, the upper shell and the lower shell are welded through glue or ultrasonic waves to form a shell, the metal elastic sheet, the battery seat and the circuit board with the control circuit are sealed in the shell, and the shell has a waterproof function.
Preferably, the upper shell is injection molded and provided with a key handle with a hollow periphery, the key handle is connected with the main body of the upper shell through a movable arm, and the surface sticker is adhered to the upper surface of the upper shell through glue or non-setting adhesive.
Preferably, the button handle is integrally formed with the upper case.
Preferably, the position of the key handle of the upper shell corresponds to the metal elastic sheet, the pressing surface paste drives the key handle to move towards the finger movement direction, the metal elastic sheet is driven to move towards the finger direction at the same time until the metal elastic sheet touches the positive electrode or the negative electrode of the battery, and the IO port of the control circuit is connected to the positive electrode of the battery and turns to a high level or a negative low level to obtain a trigger signal. When the surface sticker is released and pressed, the metal elastic sheet and the key handle of the upper shell are restored to the original state by the elasticity of the metal elastic sheet and the key handle, so that the metal elastic sheet is not in contact with the battery, and the IO port is restored to the original state.
Preferably, the surface sticker is adhered to the upper surface of the upper shell by glue or non-setting adhesive.
Preferably, the metal elastic sheet is provided with three pins, and the elastic sheet is overhead above the battery in a mode of covering the battery seat.
Preferably, the pin is a round tube or flat.
Preferably, the facing is provided with a switch indicator.
Preferably, the upper housing comprises a cylindrical structure.
Preferably, the lower surface of the upper shell is provided with 12 bulges distributed in a circumferential shape.
The invention has the following beneficial effects: the invention meets the condition that the space is required to be reduced as much as possible in the design of compact electronic products, and simultaneously has a waterproof function.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a top view of the upper housing of the present invention.
Fig. 3 is a bottom view of the upper housing of the present invention.
Fig. 4 is an assembly view of the metal dome, the battery holder and the circuit board with the control circuit in the present invention.
Fig. 5 is a perspective view of the present invention.
Fig. 6 is a schematic view of the shape of the metal dome.
In the figure: 1. a lower housing; 2. a circuit board; 3. a battery holder; 4. a battery; 5. a metal spring sheet; 6. an upper housing; 7. pasting the surface; 8. a cylindrical housing; 9. a key handle; 10; a protrusion; 11. a first pin; 12. a second pin; 13. a positioning handle; 14. a round tubular pin; 15. a flat pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Referring to the attached figure 1 of the specification, a waterproof switch comprises a surface paste 7, an upper shell 6, a lower shell 1, a metal elastic sheet 5, a battery 4, a battery holder 3 and a circuit board 2 with a control circuit, wherein the battery holder 3 is welded on the circuit board, the battery 4 is fixed on the circuit board 2 through the battery holder 3 to supply power to the circuit board 2, an IO port of the control circuit is connected with a 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 with a positive electrode of the battery through a current-limiting resistor and is in a high level state, the metal elastic sheet 5 is welded on the circuit board 2 and is connected to the control circuit through the circuit board 2, the metal elastic sheet 5 is arranged above the positive electrode or the negative electrode of the battery 4 in an overhead mode, the upper shell 6 and the lower shell 1 are connected through glue or ultrasonic welding to form a shell, and the metal elastic, the housing has a waterproof function.
The specific details are shown in the attached fig. 2-4 of the specification, the upper shell 6 of the waterproof switch shown in the attached fig. 2 of the specification is provided with a cylindrical shell 8, the cylindrical shell 8 is formed by injection molding, the upper surface of the cylindrical shell is provided with a key handle 9 with a hollow periphery, the key handle 9 is connected with the main body of the upper shell through a movable arm, and the key handle and the upper shell are integrally formed.
As shown in the attached drawing 1, the surface sticker is adhered to the upper surface of the key handle 9 by glue or adhesive sticker, a switch mark is arranged on the surface sticker, namely the surface sticker is pressed according to the switch mark, because the position of the key handle 9 of the upper shell corresponds to the metal elastic sheet 5, the pressing surface sticker drives the key handle 9 to move towards the finger movement direction, the metal elastic sheet 5 is simultaneously driven to move towards the finger direction until touching the positive electrode or the negative electrode of the battery, and the IO port of the control circuit is connected to the positive electrode of the battery and turns to the high level or the negative electrode low level to obtain a trigger signal. When the surface sticker is released and pressed, the metal elastic sheet 5 and the key handle of the upper shell are restored to the original state by the elasticity of the metal elastic sheet 5 and the key handle of the upper shell, so that the metal elastic sheet 5 is not in contact with the battery, and the IO port is restored to the original state.
As shown in the attached drawing 3 of the specification, the lower surface of the cylindrical shell 8 of the upper shell 6 is provided with 12 protrusions for isolating the key handle 9 on the upper surface of the cylindrical shell 8 from the metal elastic sheet 5, so that the key handle 9 can be contacted with the metal elastic sheet 5 only when pressed to a certain extent, and the metal elastic sheet is pushed to be contacted with the battery to electrify the control circuit, thereby preventing the occurrence of false triggering caused by small disturbance of the key handle. The 12 bulges are uniformly distributed in a circumferential shape, so that the upper surface of the cylindrical shell 8 and the positions of the metal elastic sheet 5 have the same interval.
As shown in fig. 4, which is an assembly diagram of a metal elastic sheet, a battery holder and a circuit board with a control circuit in the invention, the metal elastic sheet 6 has three pins, and the elastic sheet is overhead above the battery in a manner of covering the battery holder. The three pins are arranged on the battery 4, and the metal elastic sheet 6 can be stably arranged on the battery by utilizing the principle of high stability, firmness and pressure resistance of the triangle. The three pins include a first pin 11 soldered to a circuit board and a second pin 12 elevated above the battery 4 by covering the battery holder 3. The first pin 11 is longer than the second pin, but the second pin 12 only covers the battery holder 3 and is not connected to the battery holder 3.
As shown in fig. 5 in the specification, the lower housing is further injection-molded with a positioning handle 13 for fixing and positioning the waterproof switch.
The pin is in a round tube shape 14 or a flat shape 15 as shown in the description and figure 6.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A waterproof switch comprises a surface paste, an upper shell, a lower shell, a metal elastic sheet, a battery holder and a circuit board with a control circuit, it is characterized in that the battery seat is welded on the circuit board, the battery is fixed on the circuit board through the battery seat to supply power to the circuit board, the IO port of the control circuit is connected with the cathode 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 with the anode 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 overhead above the anode or the cathode of the battery, the upper shell and the lower shell are welded through glue or ultrasonic waves to form a shell, the metal elastic sheet, the battery seat and the circuit board with the control circuit are sealed in the shell, and the shell has a waterproof function.
2. The waterproof switch of claim 1, wherein the upper housing is injection molded and has a key handle with a hollow periphery, the key handle is connected to the main body of the upper housing through a movable arm, and the surface sticker is adhered to the upper housing by glue or adhesive.
3. The waterproof switch of claim 2, wherein said key handle is integrally formed with said upper housing.
4. The waterproof switch of claim 3, wherein the position of the key handle of the upper housing corresponds to the metal spring, the pressing surface is attached to drive the key handle to move in the direction of finger movement, the metal spring is driven to move in the direction of finger movement until touching the positive electrode or the negative electrode of the battery, and the IO port of the control circuit is connected to the positive electrode of the battery and turns to a high level or a negative low level to obtain the trigger signal. When the surface sticker is released and pressed, the metal elastic sheet and the key handle of the upper shell are restored to the original state by the elasticity of the metal elastic sheet and the key handle, so that the metal elastic sheet is not in contact with the battery, and the IO port is restored to the original state.
5. The waterproof switch according to any one of claims 1 to 4, wherein said face sticker is attached to the upper surface of the upper case by means of glue or adhesive.
6. The waterproof switch of any one of claims 1 to 4, wherein said metal dome has three legs, and said dome is elevated above said battery by covering said battery holder.
7. The watertight switch of claim 6, wherein the pin is round tubular or flat.
8. The watertight switch according to any one of claims 1 to 4, characterized in that said facing has a switch indication mark.
9. The watertight switch according to any one of claims 1 to 4, wherein said upper housing comprises a cylindrical structure.
10. The watertight switch according to any one of claims 1 to 4, wherein said upper housing lower surface has 12 protrusions distributed circumferentially.
CN201910180583.3A 2019-03-11 2019-03-11 Waterproof switch Pending CN111681899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910180583.3A CN111681899A (en) 2019-03-11 2019-03-11 Waterproof switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910180583.3A CN111681899A (en) 2019-03-11 2019-03-11 Waterproof switch

Publications (1)

Publication Number Publication Date
CN111681899A true CN111681899A (en) 2020-09-18

Family

ID=72433146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910180583.3A Pending CN111681899A (en) 2019-03-11 2019-03-11 Waterproof switch

Country Status (1)

Country Link
CN (1) CN111681899A (en)

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