CN210575635U - Micro-switch with double-pole single-button asynchronous structure - Google Patents
Micro-switch with double-pole single-button asynchronous structure Download PDFInfo
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- CN210575635U CN210575635U CN201921788022.3U CN201921788022U CN210575635U CN 210575635 U CN210575635 U CN 210575635U CN 201921788022 U CN201921788022 U CN 201921788022U CN 210575635 U CN210575635 U CN 210575635U
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Abstract
The utility model provides a micro-gap switch with bipolar single button asynchronous structure, including the base body, side cap and button, be provided with normally open terminal and normally closed terminal on the base body, the one end of button extends the box that base body and side cap constitute, the other end sets up in the box; the movable contact arms are arranged on two sides below the button, movable contact arm supports are arranged below the movable contact arms, connecting pieces are arranged below the movable contact arm supports, and the movable contact arm supports are used for supporting the connecting pieces; an elastic sheet is arranged between the movable contact arm and the movable contact arm bracket; the two ends of the bottom of the button have a height difference; the movable contact arm is provided with a movable contact, the normally open terminal is provided with a normally open contact, and the normally closed terminal is provided with a normally closed contact. The beneficial effects are as follows: the height difference is arranged between the two ends of the bottom of the button to realize the synchronous or asynchronous function of the switch, so that the switch-on and the brake of the electric tool are controlled.
Description
Technical Field
The present invention relates to a push-button switch, and more particularly to a micro-gap switch having a bipolar single-button asynchronous structure.
Background
The microswitches currently on the market with a bipolar single-button asynchronous structure have the following functional drawbacks:
1. common bipolar micro-gap switch has two independent buttons respectively, can only realize the asynchronous function of switch through adjustment button's height, and the discrete type is great to lead to the asynchronous error of switch very big, make electric tool can't realize the brake function, can burn out the switch even, the contact can bond together when serious, does not conform to GB15092.1 national safety standard, exists great potential safety hazard to people's life.
2. The common bipolar microswitch is provided with two independent buttons respectively, when the synchronous function is required to be realized, two identical buttons are required to be selected, and the two buttons are completely independent, so that the complete synchronization of the switch can not be realized, the switch burnout can be seriously caused, and the common bipolar microswitch is not in accordance with the national safety standard.
For this reason, it is imperative to design a microswitch with a bipolar single button asynchronous configuration.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, provide a micro-gap switch with bipolar single button asynchronous structure.
The utility model provides a pair of micro-gap switch with bipolar single button asynchronous structure, its technical scheme is:
comprises a base body, a side cover and a button; the base body is provided with a normally open terminal and a normally closed terminal, one end of the button extends out of the box body formed by the base body and the side cover, and the other end of the button is arranged in the box body;
the movable contact arms are arranged on two sides below the button, a movable contact arm support is arranged below the movable contact arms, a connecting sheet is arranged below the movable contact arm support, and the movable contact arm support is used for supporting the connecting sheet; an elastic sheet is arranged between the movable contact arm and the movable contact arm bracket;
the movable contact arm is provided with a movable contact, the normally open terminal is provided with a normally open contact, and the normally closed terminal is provided with a normally closed contact;
the two ends of the bottom of the button have a height difference.
The utility model provides a pair of micro-gap switch with bipolar single button asynchronous structure still includes following subsidiary technical scheme:
the bottom of the button is provided with a button groove, two sides of the button are provided with button lugs, one side wall of the movable contact arm is arranged in the button groove, and the other side wall of the movable contact arm is arranged below the button lugs;
the top of the base body is provided with a button through hole, and the button extends out of the base body through the button through hole;
the button is characterized in that a button guide block is arranged on the inner side wall of the button through hole, a button guide groove is formed in the side face of the button, and the button guide block can slide in the button guide groove when the button moves up and down.
One end and/or two ends of the bottom of the button are/is provided with a height adjusting structure, and the height difference is formed between the two ends of the bottom of the button by adjusting the height adjusting structure.
The button and the button groove are both arranged in a convex structure.
One end of the elastic sheet is arranged on the movable contact arm bracket, and the other end of the elastic sheet is arranged on the movable contact arm.
The movable contact arm comprises a movable contact arm support and is characterized in that a first clamping groove is formed in the movable contact arm support, a first clamping block is arranged at one end of each elastic sheet, the first clamping block is clamped in the first clamping groove, a second clamping groove is formed in the other end of each elastic sheet, a second clamping block is arranged at one end of each movable contact arm, and the second clamping block is clamped in the second clamping groove.
One end of the connecting sheet is arranged on the movable contact arm support, and the other end of the connecting sheet is arranged on the movable contact arm.
The other end of the movable contact arm is provided with a third clamping block, one end of the connecting sheet is provided with a third clamping groove, and the third clamping block is clamped in the third clamping groove; the other end of the connecting sheet is provided with a fourth clamping block, a fourth clamping groove is formed in the movable contact arm support, and the fourth clamping block is clamped in the fourth clamping groove.
The movable contact arm support is characterized in that a clamping groove is formed in the inner wall of the top of the base body, a clamping hole is formed in the bottom of the base body, one end of the movable contact arm support is fixed to the base body through the clamping groove, and the other end of the movable contact arm support extends out of the box body through the clamping hole.
The utility model discloses an implement including following technological effect:
1. the utility model discloses a set up the difference in height between the both ends of button bottom to realize the synchronous or asynchronous function of switch, thereby realize controlling electric tool's switch-on and brake.
2. Novel structure uses the maintenance to repair simply, can extensively be used to all kinds of electric tool and the garden instrument that need take brake function, for example: electric pruners, electric pole saws, and the like.
Drawings
Fig. 1 is a perspective view of a micro-gap switch with a bipolar single-button asynchronous structure according to the present invention.
Fig. 2 is a cross-sectional view of a micro-switch with a bipolar single-button asynchronous structure according to the present invention.
Fig. 3 is an exploded view of the components of a microswitch having a bipolar single button asynchronous configuration as shown in fig. 1.
Fig. 4 is an assembly view of the bracket assembly of a microswitch having a double pole single button asynchronous configuration as shown in fig. 1.
Fig. 5 is a schematic structural diagram of a button according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a button according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a button according to still another embodiment of the present invention.
In the figure, 1-a base body, 2A-a first side cover, 2B-a second side cover, 3-a button, 4-a movable contact arm, 5-a movable contact arm bracket, 6-a connecting piece, 7-an elastic sheet, 8-a normally open terminal, 9-a normally closed terminal, 11-a button through hole, 12-a button guide block, 13-a clamping groove, 14-a clamping hole, 31-a button groove, 32-a button lug, 33-a button guide groove, 41-a movable contact, 42-a second clamping block, 43-a third clamping block, 51-a first clamping groove, 52-a fourth clamping groove, 61-a third clamping groove, 62-a fourth clamping block, 71-a first clamping block, 72-a second clamping groove, 81-a normally open contact and 91-a normally closed contact.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings, wherein the described embodiments are only intended to facilitate the understanding of the present invention, and do not limit the present invention in any way.
The orientations described in the present application, such as up, down, left, right, and left, are convenient to use and described with reference to the drawings, and do not limit the scope of protection.
The utility model provides a micro-gap switch with a bipolar single-button asynchronous structure, as shown in figures 1-4, comprising a base body 1, a side cover and a button 3; a normally open terminal 8 and a normally closed terminal 9 are arranged on the base body 1, one end of the button 3 extends out of a box body formed by the base body 1 and the side cover 2, and the other end of the button is arranged in the box body;
the movable contact arms 4 are arranged on two sides below the button 3, movable contact arm supports 5 are arranged below the movable contact arms 4, connecting pieces 6 are arranged below the movable contact arm supports 5, and the movable contact arm supports 5 are used for supporting the connecting pieces 6; an elastic sheet 7 is arranged between the movable contact arm 4 and the movable contact arm bracket 5; the elastic sheet 7 is used for resetting;
the two ends of the bottom of the button 3 have a height difference;
the movable contact arm 4 is provided with a movable contact 41, the normally open terminal is provided with a normally open contact 81, and the normally closed terminal 9 is provided with a normally closed contact 91;
according to the microswitch with the bipolar single-button asynchronous structure, the height difference is arranged between the two ends of the bottom of the button, so that the synchronous or asynchronous function of the switch is realized, and the switch-on and brake of the electric tool are controlled. Moreover, the structure is novel, the use, the maintenance and the repair are simple, and the device can be widely applied to various electric tools and garden tools with the brake function, such as: electric pruners, electric pole saws, and the like.
The side cover comprises a first side cover 2A and a second side cover 2B, the first side cover 2A is buckled on one side of the base body 1, and the second side cover 2B is buckled on the other side of the base body 2.
In some embodiments, a magnet may be disposed between the normally open terminal 8 and the normally closed terminal 9.
Preferably, as shown in fig. 3 and 4, the bottom of the button 3 is provided with a button groove 31, and both sides of the button 3 are provided with button protrusions 32; one side wall of the movable contact arm 4 is arranged in the button groove 31, and the other side wall is arranged below the button projection 32;
the top of the base body 1 is provided with a button through hole 11, a button guide block 12 is arranged on the inner side wall of the button through hole 11, a button guide groove 33 is arranged on the side surface of the button 3, and when the button 3 moves up and down, the button guide block 12 can slide in the button guide groove 33. Through set up button guide block 12 on the inside wall at button through-hole 11 in this embodiment, be provided with the button guide slot in the side of button 3 to it is good to realize the button direction, makes the button at the in-process that reciprocates, is difficult to rock.
Preferably, one end and/or two ends of the bottom of the button 3 are/is provided with a height adjusting structure, and the height adjusting structure is adjusted to enable a height difference to exist between the two ends of the bottom of the button 3.
The height adjusting structure can be a cushion block arranged at one end of the bottom of the button, or cushion blocks are arranged at two ends of the bottom of the button, and the height of the cushion blocks is different.
More preferably, a height adjusting structure is arranged at one end and/or two ends of the bottom of the button 3, so that the height difference between two side walls of the button groove 31 ranges from 0 mm to 1.2 mm.
Specifically, the microswitch with the bipolar single-button asynchronous structure in the embodiment of the present disclosure basically has a function of approaching synchronization or disconnection, which can be regarded as synchronization, when the height difference between the two side walls of the button groove is 0-0.5 mm; when the height difference between the two side walls of the button groove is 0.5-1.2 mm, the microswitch with the bipolar single-button asynchronous structure in the embodiment is in an asynchronous connection or disconnection function, so that the switch has a sequential disconnection sequence, and the brake function of an electric tool or a garden attack is realized.
As shown in fig. 5, the height difference between both sidewalls of the button recess 31 is 0.5 mm.
As shown in fig. 6, the height difference between both sidewalls of the button recess 31 is 0.8 mm.
As shown in fig. 7, the height difference between both sidewalls of the button recess 31 is 1.2 mm.
It will be appreciated that indicia may be provided on both ends of the top of the button to mark the sequence of switch openings for ease of control and operation.
As shown in fig. 3 and 4, the button 3 is provided with a convex structure, and the button groove 31 at the bottom of the button 3 is also provided with a convex structure.
As shown in fig. 2 to 4, one end of the elastic sheet 7 is disposed on the movable contact arm support 5, and the other end is disposed on the movable contact arm 4.
Specifically, a first clamping groove 51 is formed in the movable contact arm support 5, a first clamping block 71 is arranged at one end of the elastic piece 7, the first clamping block 71 is clamped in the first clamping groove 51, a second clamping groove 72 is arranged at the other end of the elastic piece 7, a second clamping block 42 is arranged at one end of the movable contact arm 4, and the second clamping block 42 is clamped in the second clamping groove 72.
As shown in fig. 2 to 4, one end of the connecting piece 6 is disposed on the movable contact arm bracket 5, and the other end is disposed on the movable contact arm 4.
Specifically, a third clamping block 43 is arranged at the other end of the movable contact arm 4, a third clamping groove 61 is arranged at one end of the connecting sheet 6, and the third clamping block 43 is clamped in the third clamping groove 61; a fourth clamping block 62 is arranged at the other end of the connecting sheet 6, a fourth clamping groove 52 is arranged on the movable contact arm bracket 5, and the fourth clamping block 62 is clamped in the fourth clamping groove 52.
Preferably, as shown in fig. 3, a clamping groove 13 is provided on an inner wall of a top portion of the base body 1, a clamping hole 14 is provided at a bottom portion of the base body 1, one end of the movable contact arm support 5 is fixed on the base body 1 through the clamping groove 13, and the other end extends out of the box body through the clamping hole 14.
The utility model provides a pair of micro-gap switch with bipolar single button asynchronous structure, its working process is:
when the button 3 is pressed, the button 3 drives the connecting piece 6 to rotate downwards by taking the fourth clamping groove 53 on the movable contact arm support 5 as a fulcrum, so that the movable contact arm 4 is driven to rotate downwards, when the included angle between the movable contact arm 4 and the connecting piece 6 is less than zero, the movable contact arm 4 can jump downwards under the action of the elastic piece 7, the movable contact 41 on the movable contact arm 4 is in contact with the normally open contact 81 on the normally open terminal 8, the switch-on function of the switch is realized, and meanwhile, the elastic piece 7 is compressed. The principle is as follows: when the movable contact arm 4 is jumped downwards, because the left end of the movable contact arm 4 is provided with two wedge-shaped button lugs, and the connecting sheet 6 is provided with two bosses, in the downward moving process of the movable contact arm 4, the wedge-shaped button lug at the left end of the movable contact arm 4 can be clamped on the boss of the connecting sheet 6, so that the downward moving distance of the left end of the movable contact arm 4 is limited, and the right end of the movable contact arm 4 can move freely, so that the downward moving distance of the right side of the movable contact arm 4 is greater than the downward moving distance of the left side of the movable contact arm 4, therefore, the movable contact 41 on the movable contact arm 4 is contacted with the normally open contact 81 on the normally open terminal 8, the switch-on function of the switch is realized.
When the heights of the two side walls of the button groove 31 at the bottom of the button 3 are basically the same, namely 0-0.5 mm, the switches at the two sides are switched on and can be basically kept synchronous; when a height difference of 0.5-1.2 mm exists between two side walls of the button groove 31 at the bottom of the button 3, the on-off stroke of the switches at two sides is basically in a range of 0.5-1.2 mm.
When the button 3 is released, the elastic sheet 7 is reset, the movable contact arm 4 can bounce upwards under the action of the elastic sheet 7, and then the movable contact 41 on the movable contact arm 4 is contacted with the normally open contact 81 on the normally open terminal 8, so that the normally closed function of the switch is realized.
When the heights of the two side walls of the button groove 31 at the lower bottom of the button 3 are basically the same, namely 0-0.5 mm, the switches at the two sides are switched off and can be basically kept synchronous; when a height difference of 0.5-1.2 mm exists between two side walls of the button groove 31 at the bottom of the button 3, the off-stroke of the switches at two sides is basically in the range of 0.5-1.2 mm.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A microswitch with a bipolar single-button asynchronous structure is characterized by comprising a base body, a side cover and a button; the base body is provided with a normally open terminal and a normally closed terminal, one end of the button extends out of the box body formed by the base body and the side cover, and the other end of the button is arranged in the box body;
the movable contact arms are arranged on two sides below the button, a movable contact arm support is arranged below the movable contact arms, a connecting sheet is arranged below the movable contact arm support, and the movable contact arm support is used for supporting the connecting sheet; an elastic sheet is arranged between the movable contact arm and the movable contact arm bracket;
the two ends of the bottom of the button are provided with a height difference;
the movable contact arm is provided with a movable contact, the normally open terminal is provided with a normally open contact, and the normally closed terminal is provided with a normally closed contact.
2. A microswitch having a bipolar single button asynchronous configuration as in claim 1 wherein: a button groove is formed in the bottom of the button, button lugs are arranged on two sides of the button, one side wall of the movable contact arm is arranged in the button groove, and the other side wall of the movable contact arm is arranged below the button lugs;
the top of the base body is provided with a button through hole, and the button extends out of the base body through the button through hole;
the button is characterized in that a button guide block is arranged on the inner side wall of the button through hole, a button guide groove is formed in the side face of the button, and the button guide block can slide in the button guide groove when the button moves up and down.
3. A microswitch having a bipolar single button asynchronous configuration as in claim 2 wherein:
one end and/or both ends of button bottom are provided with height control structure, through adjusting height control structure makes have the difference in height between the both ends of button bottom.
4. A microswitch having a bipolar single button asynchronous configuration according to any one of claims 1 to 3, wherein: the button and the button groove are both arranged to be of a convex structure.
5. A microswitch having a bipolar single button asynchronous configuration according to claim 4, wherein: one end of the elastic sheet is arranged on the movable contact arm bracket, and the other end of the elastic sheet is arranged on the movable contact arm.
6. A microswitch having a bipolar single button asynchronous configuration according to claim 5, wherein: the movable contact arm comprises a movable contact arm support and is characterized in that a first clamping groove is formed in the movable contact arm support, a first clamping block is arranged at one end of each elastic sheet, the first clamping block is clamped in the first clamping groove, a second clamping groove is formed in the other end of each elastic sheet, a second clamping block is arranged at one end of each movable contact arm, and the second clamping block is clamped in the second clamping groove.
7. A microswitch having a bipolar single button asynchronous configuration according to claim 4, wherein: one end of the connecting piece is arranged on the movable contact arm support, and the other end of the connecting piece is arranged on the movable contact arm.
8. A microswitch having a bipolar single button asynchronous configuration as in claim 7 wherein: a third clamping block is arranged at the other end of the movable contact arm, a third clamping groove is formed in one end of the connecting sheet, and the third clamping block is clamped in the third clamping groove; the other end of the connecting sheet is provided with a fourth clamping block, a fourth clamping groove is formed in the movable contact arm support, and the fourth clamping block is clamped in the fourth clamping groove.
9. A microswitch having a bipolar single button asynchronous configuration according to claim 4, wherein: the movable contact arm support is characterized in that a clamping groove is formed in the inner wall of the top of the base body, a clamping hole is formed in the bottom of the base body, one end of the movable contact arm support is fixed to the base body through the clamping groove, and the other end of the movable contact arm support extends out of the box body through the clamping hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788022.3U CN210575635U (en) | 2019-10-23 | 2019-10-23 | Micro-switch with double-pole single-button asynchronous structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921788022.3U CN210575635U (en) | 2019-10-23 | 2019-10-23 | Micro-switch with double-pole single-button asynchronous structure |
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| Publication Number | Publication Date |
|---|---|
| CN210575635U true CN210575635U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921788022.3U Active CN210575635U (en) | 2019-10-23 | 2019-10-23 | Micro-switch with double-pole single-button asynchronous structure |
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| CN (1) | CN210575635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420484A (en) * | 2022-02-25 | 2022-04-29 | 浙江佳奔电子有限公司 | Dustproof microswitch |
-
2019
- 2019-10-23 CN CN201921788022.3U patent/CN210575635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114420484A (en) * | 2022-02-25 | 2022-04-29 | 浙江佳奔电子有限公司 | Dustproof microswitch |
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| CP02 | Change in the address of a patent holder |
Address after: 325608 Longze village and Nanyang Village, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. Address before: 325609 Tiancheng Industrial Zone, Yueqing City, Zhejiang Province Patentee before: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |