CN110718405A - Novel safe light touch switch - Google Patents
Novel safe light touch switch Download PDFInfo
- Publication number
- CN110718405A CN110718405A CN201911037710.0A CN201911037710A CN110718405A CN 110718405 A CN110718405 A CN 110718405A CN 201911037710 A CN201911037710 A CN 201911037710A CN 110718405 A CN110718405 A CN 110718405A
- Authority
- CN
- China
- Prior art keywords
- elastic
- switch
- conductive
- button
- groove
- 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.)
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Classifications
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- 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
- H01H13/10—Bases; Stationary contacts mounted thereon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- 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
- H01H13/14—Operating parts, e.g. push-button
-
- 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
- H01H13/50—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
- H01H2013/525—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 using a return spring acting perpendicular to the actuating direction
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
The invention discloses a novel safe light-touch switch, which solves the safety problem caused by electric shock accidents caused by electric leakage of the light-touch switch or the problem of switch damage caused by excessive pressure; the switch comprises a switch base, a switch cover plate, an elastic button, a conductive elastic sheet, a conductive contact piece and an insulation box, wherein the conductive elastic sheet and the conductive contact piece are arranged in the insulation box; the through pipe is also provided with a limiting clamping groove which is matched with a limiting ring buckle of the elastic button to prevent the switch from being damaged due to overlarge stress; the invention has the advantages of high safety, long service life, convenient installation and the like.
Description
Technical Field
The invention relates to the field of tact switches, in particular to a novel safe tact switch.
Background
The light touch switch is an electronic switch, mainly used in daily household appliances, when in use, the switch can be switched on by lightly pressing a switch button, when the pressure disappears, the light touch switch is immediately switched off, and the internal structure of the light touch switch realizes the on-off by the elastic movement of a metal elastic sheet under the stress. However, since the tact switch is common in daily life, the switch may not be reset and damaged due to excessive pressure, or the switch may leak or be disconnected due to other reasons, thereby causing an electric shock accident, so how to improve the service life and the safety of the tact switch is a very important issue.
Disclosure of Invention
Aiming at the problem that in daily life in the prior art, a light-touch switch is a position which is frequently touched by daily people, so that electric shock accidents are often caused by electric leakage or circuit breaking, serious safety problems are caused, or the switch is damaged due to overlarge pressure; the invention provides a novel safe light touch switch.
A novel safety tact switch comprising:
the switch base is provided with a groove;
the switch cover plate is provided with a mounting hole and is mounted on the switch base;
the upper end of the insulation box is provided with a through pipe, a limiting clamping groove is formed in the through pipe, an elastic gasket is installed in the through pipe, the insulation box is provided with an insulation cavity, and the insulation box is installed in the groove;
the conductive elastic sheet is arranged at the upper end of the insulating cavity and is contacted with the bottom end of the elastic gasket;
the conductive contact piece is arranged at the lower end of the insulating cavity and is in matched conduction with the conductive elastic piece or is in matched disconnection with the conductive elastic piece;
the elastic button is provided with a limiting snap ring, the elastic button is installed on the switch cover plate through the installation hole, and the elastic button is contacted with the top end of the elastic gasket;
when the elastic gasket is pressed, the conductive elastic sheet is contacted with the conductive contact sheet, and the light-touch switch is switched on; when the pressure of the elastic gasket disappears, the elastic gasket resets to drive the conductive elastic sheet to reset, the conductive elastic sheet is separated from the conductive contact piece, and the light touch switch is powered off;
the elastic gasket is matched with the through pipe of the insulation box, so that the insulation cavity is an isolated cavity;
the elastic button is matched with the limiting clamping ring and the limiting clamping groove, and moves on the limiting clamping groove of the through pipe along the axial direction of the through pipe.
Further, be provided with the installation cap on the switch apron, installation cap one end with the mounting hole is connected, the other end of installation cap is provided with inward segmental arc, the segmental arc forms a round hole, the round hole with the elastic button matches.
Further, the elastic button comprises a tubular button cap, an elastic piece and a connecting seat, one end of the elastic piece is fixed in the tubular button cap, the other end of the elastic piece is fixed on the connecting seat, the connecting seat is in contact with the top end of the elastic gasket, a limiting clamping ring is arranged at the lower end of the button cap, and the base is an insulating piece.
Further, spacing draw-in groove sets up the outside of siphunculus, the inside top of siphunculus is provided with clean recess, be provided with in the clean recess and link up the through-hole of siphunculus.
Furthermore, the limiting clamping groove is matched with the limiting clamping ring, and when the elastic button moves downwards under pressure, the limiting clamping ring moves downwards in the limiting clamping groove; when the spring button is reset, the limiting snap ring moves upwards in the limiting clamping groove
Furthermore, an input wiring end and an output wiring end are arranged on the insulating box, one end of the input wiring end is connected with the conductive elastic sheet, and the other end of the input wiring end is connected with an input lead; one end of the output wiring terminal is connected with the output conducting wire, and the other end of the output wiring terminal is connected with the conductive contact piece.
Furthermore, pins are arranged outside the switch base and comprise input pins and output pins, the input pins are connected with the other ends of the input wires, and the output pins are connected with the other ends of the output wires.
The invention principle is as follows: through being provided with insulating box in the switch base, and the higher authority of this insulating box is provided with the siphunculus, be provided with the spacing groove on this expert closes, the spacing snap ring of spacing groove cooperation elastic button, can prevent that the switch from receiving too big pressure and damaging, still be provided with clean recess and through-hole on the expert, prevent that the foreign matter from getting into insulating box, in conductive shell fragment and conductive contact piece all are provided with insulating box simultaneously, be connected to the input pin of switch base with conductive shell fragment through the input wire, be connected to the output pin of switch base with conductive contact piece through the output wire, elastic switch contacts with conductive shell fragment in insulating box, guarantee to dabber the electrically conductive disconnection of switch and accomplish totally in insulating intracavity, when preventing the electric leakage, safety problems such as electric shock take place.
The invention has the following advantages and beneficial effects:
1. the invention is provided; through set up insulating box on the switch base, in all being provided with insulating box with electrically conductive shell fragment and electrically conductive contact piece, solved and dabbed the switch shell electric leakage and cause the electric shock problem.
2. The invention is provided; through set up input interface and output interface on insulating box, adopt input wire to be connected input pin and input interface, adopt output wire to be connected output pin and output interface, simple structure, production is convenient, conveniently overhauls and more changes.
3. The invention is provided; through set up the siphunculus at insulating box top, the siphunculus outside is provided with spacing draw-in groove, is provided with spacing snap ring at the end of the pipy button cap of elastic button, and spacing snap ring and spacing draw-in groove cooperation prevent that pressure from too big damage switch, improve the life of switch.
4. The invention is provided; the base through the elastic switch is an insulating part and is in indirect contact with the conductive elastic sheet through the elastic gasket, so that the working environment of the switch is a closed insulating space, the electric shock hazard in the process of electric leakage can be prevented, and the safety of the touch switch is improved.
5. The invention is provided; through set up clean groove and through-hole in the siphunculus of insulating box, can prevent to get into the impurity that dabs the switch and get into the inside in insulating chamber, cause the switch accident to switch on, take place the incident.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is an axial view of a tact switch of the present invention.
Fig. 2 is an exploded view of the tact switch of the present invention.
Fig. 3 is a cross-sectional view of the tact switch of the present invention.
Fig. 4 is an axial view of the resilient button of the present invention.
Fig. 5 is a cross-sectional view of the insulating case of the present invention.
Fig. 6 is a cross-sectional view of the insulating case with the elastic pad according to the present invention.
Reference numbers and corresponding part names in the drawings:
1-mounting cap, 2-switch cover plate, 3-pin, 4-switch base, 5-elastic button, 6-insulating box, 7-tubular button cap, 8-connecting seat, 9-limit snap ring, 10-elastic piece, 11-through tube, 12-conductive elastic piece, 13-conductive contact piece, 14-input terminal, 15-output terminal, 16-insulating cavity, 17-input lead, 18-output lead, 19-input pin, 20-output pin, 21-through hole, 22-clean groove, 23-limit snap groove and 24-elastic gasket.
Detailed Description
Hereinafter, the term "comprising" or "may include" used in various embodiments of the present invention indicates the presence of the invented function, operation or element, and does not limit the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the present invention, the terms "comprises," "comprising," "includes," "including," "has," "having" and their derivatives are intended to mean that the specified features, numbers, steps, operations, elements, components, or combinations of the foregoing, are only meant to indicate that a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as first excluding the existence of, or adding to the possibility of, one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
In various embodiments of the invention, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B, or may include both a and B.
Expressions (such as "first", "second", and the like) used in various embodiments of the present invention may modify various constituent elements in various embodiments, but may not limit the respective constituent elements. For example, the above description does not limit the order and/or importance of the elements described. The foregoing description is for the purpose of distinguishing one element from another. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present invention.
It should be noted that: if it is described that one constituent element is "connected" to another constituent element, the first constituent element may be directly connected to the second constituent element, and the third constituent element may be "connected" between the first constituent element and the second constituent element. In contrast, when one constituent element is "directly connected" to another constituent element, it is understood that there is no third constituent element between the first constituent element and the second constituent element.
The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the invention. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the present invention belong. The terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in various embodiments of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limitations of the present invention.
Example 1
A novel safe touch switch.
As shown in fig. 1, 2 and 3, the switch cover plate 2 is mounted on a switch base 4, a mounting hole of an elastic button 5 and a mounting cap 1 are arranged on the switch cover plate 2, the elastic button 5 is mounted on the switch cover plate 2 through the mounting hole, the elastic button 5 is arranged in the mounting cap 1, an insulating box 6 is mounted in the switch base 4, and the tail end of the elastic button 5 is arranged in the insulating box 6; the side surface of the switch base 4 is also provided with a pin 3, the pin 3 is divided into an input pin 19 and an output pin 20, one end of the input pin 19 is connected with one end of an input lead 17 of the light touch switch, the other end of the input lead 17 is connected with the insulating box 6, one end of the output pin 20 is connected with one end of an output lead 18 in the light touch switch, and the other end of the output lead 18 is connected with the insulating box 6.
As shown in fig. 4, 5 and 6, a limiting snap ring 9 is arranged at a bottom end nozzle of the tubular button cap 7 of the elastic button 5, the elastic member 10 is arranged in the tubular button cap 7, and one end of the elastic member is fixed on the tubular button cap 7 while the other end is fixed on the connecting seat 8; the outer wall of siphunculus 11 of insulating box 6 is provided with spacing draw-in groove 23, and elastic button 5 passes through spacing draw-in groove 23 and spacing snap ring 9 cooperation, realizes along siphunculus 11's axial motion in spacing draw-in groove 23 within range.
The conductive elastic sheet 12 is arranged in an insulating cavity 16 of the insulating box 7 and is connected with one end of the input wiring terminal 14, and the other end of the input wiring terminal 14 is connected with an input lead 17; the conductive contact piece 13 is arranged in the insulating cavity 16 of the insulating box 7 and is connected with one end of the output terminal 15, the other end of the output terminal 15 is connected with the output lead 18, an elastic gasket 24 is further arranged in the through pipe, one end of the elastic gasket 24 is contacted with the conductive elastic piece 12, and the other end of the elastic gasket 24 is contacted with the connecting seat 8.
The upper end of the inner wall of siphunculus 11 is provided with clean recess 22, and is provided with the through-hole 21 that runs through siphunculus 12 pipe wall in the clean recess 22, and when impurity got into insulating box 7, impurity can be at first fallen into clean recess 22 in, can leave insulating box 6 through-hole 21, prevents that impurity from causing in getting into insulating chamber 16 to dabble the unexpected switch-on of switch.
When the tubular button cap 7 of the elastic button 5 is pressed, the elastic switch moves towards the insulating box 6 in the limiting clamping groove 23, the elastic piece 10 is compressed, so that the elastic gasket 24 and the conductive elastic sheet 12 move together towards the conductive contact piece 13, the conductive contact piece 13 is contacted with the conductive elastic sheet 12, and the tact switch is conducted.
When the pressure of the tubular button cap 7 of the elastic button 5 disappears, the elastic button 5 moves in the opposite direction of the insulation box 6 in the limit clamping groove 23, the elastic piece 10 resets, so that the elastic gasket 24 and the conductive elastic sheet 12 move in the opposite direction of the conductive contact sheet 13, the conductive contact sheet 13 and the conductive elastic sheet 12 are disconnected, and the tact switch is disconnected.
When the pressure applied to the elastic button 5 is too large, the limit ring 9 and the limit slot 23 can prevent the elastic element 10 from being compressed excessively, thereby preventing the conductive elastic sheet 12 from being damaged due to excessive compression.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A novel safe tact switch, comprising:
the switch comprises a switch base (4), wherein the switch base (4) is provided with a groove;
the switch cover plate (2), the switch cover plate (2) is provided with a mounting hole, and the switch cover plate (2) is mounted on the switch base (4);
the insulation box (6), the upper end of the insulation box (6) is provided with a through pipe (11), a limiting clamping groove (23) is arranged on the through pipe (11), an elastic gasket (24) is arranged in the through pipe (11), the insulation box (6) is provided with an insulation cavity (16), and the insulation box (6) is arranged in the groove;
the conductive elastic sheet (12), the conductive elastic sheet (12) is arranged at the upper end of the insulating cavity (16), and the conductive elastic sheet (12) is contacted with the bottom end of the elastic gasket (24);
the conductive contact piece (13) is installed at the lower end of the insulating cavity (16), the conductive contact piece (13) is in matched conduction with the conductive elastic piece (12), or the conductive contact piece (13) is in matched disconnection with the conductive elastic piece (12);
the elastic button (5) is provided with a limiting snap ring (9), the elastic button (5) is installed on the switch cover plate (2) through the installation hole, and the elastic button (5) is in contact with the top end of the elastic gasket (24);
when the elastic gasket (24) is pressed, the conductive elastic sheet (12) is contacted with the conductive contact sheet (13), and the light-touch switch is switched on; when the pressure of the elastic gasket (24) disappears, the elastic gasket (24) resets to drive the conductive elastic sheet (12) to reset, the conductive elastic sheet (12) is separated from the conductive contact piece (13), and the light-touch switch is powered off;
wherein the elastic gasket (24) is matched with the through pipe (11) of the insulation box (6), so that the insulation cavity (16) is an isolated cavity;
elastic button (5) pass through spacing snap ring (9) with the cooperation of spacing draw-in groove (23), elastic button (5) are in siphunculus (11) follow on spacing draw-in groove (23) the axial direction motion of siphunculus (11).
2. A novel safe light touch switch according to claim 1, characterized in that the switch cover plate (2) is provided with a mounting cap (1), one end of the mounting cap (1) is connected with the mounting hole, the other end of the mounting cap (1) is provided with an inward arc section, the arc section forms a circular hole, and the circular hole is matched with the elastic button.
3. The novel safe tact switch according to claim 2, wherein the elastic button (5) comprises a tubular button cap (7), an elastic member (10) and a connecting seat (8), one end of the elastic member (10) is fixed in the tubular button cap (7), the other end of the elastic member (10) is fixed on the connecting seat (8), the connecting seat (8) is in contact with the top end of the elastic gasket (24), and the limiting snap ring (9) is arranged at the lower end of the tubular button cap (7).
4. A novel safe tact switch according to claim 3, wherein said limiting slot (23) is disposed outside said through pipe (7), a cleaning groove (22) is disposed on the top end of the inside of said through pipe (7), and a through hole (21) penetrating through said through pipe (7) is disposed in said cleaning groove (22).
5. A novel safe touch switch according to claim 4, characterized in that the limit catch groove (23) is matched with the limit snap ring (9), and when the elastic button (5) is pressed to move downwards, the limit snap ring (9) moves downwards in the limit catch groove (23); when the elastic button (5) resets, the limiting clamping ring (9) moves upwards in the limiting clamping groove (23).
6. A novel safety light touch switch according to claim 1, characterized in that the insulation box (6) is provided with an input terminal (14) and an output terminal (15), one end of the input terminal (14) is connected with the conductive elastic sheet (12), and the other end is connected with an input lead (17); one end of the output terminal (15) is connected with an output lead (18), and the other end is connected with the conductive contact piece (13).
7. A novel safe tact switch according to claim 6, characterized in that a pin (3) is provided on the outside of the switch base (4), the pin (3) comprises an input pin (19) and an output pin (20), the input pin (19) is connected with the other end of the input wire (17), and the output pin (20) is connected with the other end of the output wire (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911037710.0A CN110718405B (en) | 2019-10-29 | 2019-10-29 | Safe light touch switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911037710.0A CN110718405B (en) | 2019-10-29 | 2019-10-29 | Safe light touch switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110718405A true CN110718405A (en) | 2020-01-21 |
| CN110718405B CN110718405B (en) | 2021-08-03 |
Family
ID=69213449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911037710.0A Active CN110718405B (en) | 2019-10-29 | 2019-10-29 | Safe light touch switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110718405B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537234A (en) * | 2020-10-20 | 2021-03-23 | 张雯 | Position-adjustable automobile child seat |
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| CN209169010U (en) * | 2019-01-08 | 2019-07-26 | 苏州卡瑞电子科技有限公司 | A kind of touch-switch |
| CN209266257U (en) * | 2019-01-11 | 2019-08-16 | 江西丰裕达电子科技有限公司 | A kind of electronic equipment exterior water-proof silica-gel key |
| CN110233075A (en) * | 2019-06-10 | 2019-09-13 | 惠州冠泰电子有限公司 | Self-locking double loop key switch |
| CN110289186A (en) * | 2019-06-25 | 2019-09-27 | 贵州振华华联电子有限公司 | A kind of drawing combination button switch with precompressed stroke novel locking mechanism |
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2019
- 2019-10-29 CN CN201911037710.0A patent/CN110718405B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831254A (en) * | 1994-07-14 | 1996-02-02 | Alps Electric Co Ltd | Push-button switch |
| US20050115817A1 (en) * | 2003-12-02 | 2005-06-02 | Zhou Ocean H. | Push button switch |
| CN203746708U (en) * | 2014-03-25 | 2014-07-30 | 高坚勇 | Sealing type waterproof switch |
| CN204011132U (en) * | 2014-05-20 | 2014-12-10 | 浙江亿邦汽车电器有限公司 | Reverse lamp switch |
| CN107316760A (en) * | 2016-04-26 | 2017-11-03 | 深圳康普盾科技股份有限公司 | Switch case assembly and the battery anti-theft outdoor communication cabinet with the component |
| CN106816331A (en) * | 2017-03-03 | 2017-06-09 | 漳州聚安美电气科技有限公司 | Switch core motion, switch core assembly and vehicle-mounted switch |
| CN207182230U (en) * | 2017-08-30 | 2018-04-03 | 南通易联企业管理有限公司 | A kind of waterproof is easy to clean can direction regulation keyboard |
| CN209169010U (en) * | 2019-01-08 | 2019-07-26 | 苏州卡瑞电子科技有限公司 | A kind of touch-switch |
| CN209266257U (en) * | 2019-01-11 | 2019-08-16 | 江西丰裕达电子科技有限公司 | A kind of electronic equipment exterior water-proof silica-gel key |
| CN110233075A (en) * | 2019-06-10 | 2019-09-13 | 惠州冠泰电子有限公司 | Self-locking double loop key switch |
| CN110289186A (en) * | 2019-06-25 | 2019-09-27 | 贵州振华华联电子有限公司 | A kind of drawing combination button switch with precompressed stroke novel locking mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112537234A (en) * | 2020-10-20 | 2021-03-23 | 张雯 | Position-adjustable automobile child seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110718405B (en) | 2021-08-03 |
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