CN208368391U - A kind of high voltage direct current microswitch with arc extinguishing structure with brake function - Google Patents
A kind of high voltage direct current microswitch with arc extinguishing structure with brake function Download PDFInfo
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- CN208368391U CN208368391U CN201821187094.8U CN201821187094U CN208368391U CN 208368391 U CN208368391 U CN 208368391U CN 201821187094 U CN201821187094 U CN 201821187094U CN 208368391 U CN208368391 U CN 208368391U
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- acting arm
- high voltage
- direct current
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- button
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Abstract
A kind of high voltage direct current microswitch with arc extinguishing structure with brake function provided by the utility model, including base body, upper cover, button, normally opened terminal and normally closed terminal, the cabinet that the base body is extended in one end of button and upper cover is constituted, the other end of button is arranged in cabinet, acting arm is provided with below button, it is provided with branch acting arm bracket below acting arm, connection sheet is provided with below acting arm bracket, acting arm bracket is used to support connection sheet；It is provided with elastic slice between acting arm and acting arm bracket, is provided with magnet between normally opened terminal and normally closed terminal；Dynamic silver contact is provided in acting arm, the normally opened terminal is equipped with normally opened silver contact, is provided with normally closed silver contact on normally closed terminal.The beneficial effect is that: have in DC high voltage high current simultaneously with arc extinguishing and brake function；And structure novel, working service are repaired simply, can be widely used for all kinds of high voltage direct current electric tools and garden instrument.
Description
Technical field
The utility model relates to a kind of button switch more particularly to a kind of high straightenings with arc extinguishing structure with brake function
Flow microswitch.
Background technique
Microswitch currently on the market has following functions defect:
1, commonly using inside microswitch is common elastic piece structure, and the gap between dynamic and static contact only has 1 millimeter or so,
Closely magnet cannot be installed additional excessively between dynamic and static contact, to can not achieve arc quenching effect.When such switch use is in high voltage direct current
When on electric tool and garden instrument, hard arc easily occurs in use for acting arm, when in DC high voltage,
Arc energy easilys lead to switch and is brought rapidly up in the energized state and switch occurs and burns, and silver contact can be bonded in one when serious
It rises, does not meet GB15092.1 national safety standard, there are major safety risks to personal life.
2, the copper piece that acting arm bracket, movable contact spring and static contact inside microswitch are all made of 0.8 millimeter, current-carrying are commonly used
Ability can only achieve 20A, when DC current is more than 20A, be easy to cause switch temperature rise sharply to increase and there is a situation where burning,
National safety standard is not met equally.
For this purpose, it is imperative to design a kind of high voltage direct current microswitch with arc extinguishing structure with brake function.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, providing a kind of band arc extinguishing structure has brake function
High voltage direct current microswitch.
A kind of high voltage direct current microswitch with arc extinguishing structure with brake function provided by the utility model, technical side
Case are as follows: including base body, upper cover, button, normally opened terminal and normally closed terminal, one end of the button extend the base body with
The other end of the cabinet that the upper cover is constituted, the button is arranged in the cabinet, and dynamic touching is provided with below the button
Arm is provided with acting arm bracket below the acting arm, connection sheet, the dynamic touching is provided with below the acting arm bracket
Arm support is used to support the connection sheet；Be provided with elastic slice between the acting arm and acting arm bracket, the normally opened terminal and
Magnet is provided between normally closed terminal；It is provided with dynamic silver contact in the acting arm, is provided with normally opened silver on the normally opened terminal
Contact is provided with normally closed silver contact on the normally closed terminal.
It is provided by the utility model it is a kind of with arc extinguishing structure have brake function high voltage direct current microswitch, further include as
Lower attached technical scheme:
Wherein, the button is round button, is provided with circular through hole on the base body, is arranged in the circular through hole
There is circular groove, sealing ring is provided on the round button, the sealing ring is placed in the circular groove.
Wherein, reset spring is provided between the connection sheet and the bottom interior wall of the base body.
Wherein, the button is rectangular buttons, is provided with rectangular through-hole on the base body, the rectangular buttons pass through institute
Rectangular through-hole is stated to be mounted on the cabinet.
Wherein, it is provided with trapezoidal groove on the side inner wall of the base body, the magnet is placed on the trapezoidal groove
In.
Wherein, the first groove is provided in the top inner wall of the base body, the bottom of the base body body is provided with
One through-hole, the acting arm bracket are placed in the cabinet by first groove and first through hole.
Wherein, described acting arm one end is provided with the first convex block, and the second through-hole, the dynamic touching are provided in the connection sheet
The first convex block on arm is placed in the second through-hole of the connection sheet.Wherein, the normally closed moving contact and the moving contact bullet
Cushion block is provided between spring.
Wherein, one end of the connection sheet is provided with the second convex block, and the other end of the connection sheet is provided with third convex block,
Third through-hole is provided on the acting arm bracket, the top of acting arm is arranged in the third convex block in the connection sheet, described
The second convex block in connection sheet is arranged in the third through-hole on the acting arm bracket.
Wherein, one end of the elastic slice is provided with the 4th convex block, is provided with fourth hole on the acting arm bracket, described
The 4th convex block on elastic slice is placed in the fourth hole on the acting arm bracket；The other end of the elastic slice is provided with second
Groove is provided with the 5th convex block in the acting arm, and it is second recessed to be placed on the elastic slice for the 5th convex block in the acting arm
In slot.
Wherein, the acting arm bracket, normally opened terminal and normally closed terminal are all made of the copper piece production of 1mm thickness.Wherein, described
Wedge-shaped projection is provided in the bottom interior wall of base body.
The implementation of the utility model includes following technical effect:
1, the utility model has in DC high voltage high current simultaneously with arc extinguishing and brake function.
2, the utility model structure novel, working service are repaired simply, can be widely used for all kinds of high voltage direct current electric tools
And garden instrument.
Detailed description of the invention
Fig. 1 is a kind of solid of high voltage direct current microswitch with arc extinguishing structure with brake function of the utility model
Figure, button are round button.
Fig. 2 is a kind of solid of high voltage direct current microswitch with arc extinguishing structure with brake function of the utility model
Figure, button are rectangular buttons.
Fig. 3 is a kind of sectional view of high voltage direct current microswitch with arc extinguishing structure with brake function shown in FIG. 1.
Fig. 4 is a kind of sectional view of high voltage direct current microswitch with arc extinguishing structure with brake function shown in Fig. 2.
Fig. 5 is a kind of explosive view of high voltage direct current microswitch with arc extinguishing structure with brake function shown in FIG. 1.
Fig. 6 is a kind of explosive view of high voltage direct current microswitch with arc extinguishing structure with brake function shown in Fig. 2.
Fig. 7 is the structural schematic diagram of acting arm.
In figure, 1- base body, 2- upper cover, 3- button, 4- acting arm, 5- acting arm bracket, 6- connection sheet, 7- elastic slice, 8-
Normally opened terminal, the normally closed terminal 10- magnet of 9-, 11- circular through hole, 11 '-rectangular through-holes, 12- circular groove, 13- sealing ring, 14-
Trapezoidal groove, the first groove of 15-, 16- first through hole, 17- reset spring, the first convex block of 41-, the 5th convex block of 42-, the dynamic silver of 43-
Contact, 51- third through-hole, 52- fourth hole, the second through-hole of 61-, the second convex block of 62-, 63- third convex block, the 4th convex block of 71-,
The second groove of 72-, the normally opened silver contact of 81-, the normally closed silver contact of 91-.
Specific embodiment
The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described
Embodiment be intended merely to facilitate the understanding to the utility model, and do not play any restriction effect to it.
Orientation described herein is for example to compare the convenience of attached drawing description and use up and down, composition pair
The restriction of protection scope.
A kind of high voltage direct current microswitch with arc extinguishing structure with brake function provided by the utility model, such as Fig. 1-5
It is shown, including base body 1, upper cover 2, button 3, normally opened terminal 8 and normally closed terminal 9, one end of the button 3 extend the base
The other end of the cabinet that pedestal 1 and upper cover 2 are constituted, the button 3 is arranged in cabinet, and the lower section of the button 3 is provided with dynamic
Contact arm 4, the lower section of the acting arm 4 are provided with acting arm bracket 5, and the lower section of the acting arm bracket 5 is provided with connection sheet 6,
The acting arm bracket 5 is used to support the connection sheet 6；Elastic slice 7, institute are provided between the acting arm 4 and acting arm bracket 5
Elastic slice 7 is stated for being resetted, is provided with magnet 10 between the normally opened terminal 8 and normally closed terminal 9；It is set in the acting arm 4
It is equipped with dynamic silver contact 43, normally opened silver contact 81 is provided on the normally opened terminal 8, is provided with normally closed silver on the normally closed terminal 9
Contact 91.A kind of high voltage direct current microswitch with arc extinguishing structure with brake function provided in this embodiment, has in direct current
In the case of high-voltage large current simultaneously the function with arc extinguishing and brake；Also, band arc extinguishing structure disclosed by the utility model has
The high voltage direct current microswitch of brake function, it is structure novel, compact, cheap, it is suitable for rechargeable angle grinder, charging type electric
The DC high voltages large-current electrics such as annular saw, rechargeable grass-mowing machine, charging type electric chain saw, rechargeable shrub and hedge trimmer and rechargeable hair dryer
Power driven tools and garden instrument meet national safety standard.
Preferably, as shown in Fig. 1,3,5, the button 3 is round button, is provided with circular through hole on the base body 1
11, circular groove 12 is provided in the circular through hole 11, and sealing ring 13, the sealing ring 13 are provided on the round button
It is placed in the circular groove 12.Sealing ring 13 is sleeved on outside circular button by the present embodiment, refills the circle of base body 1
In connected in star 12, so that silver contact gap can achieve 2.5 millimeters or more.
Preferably, as shown in Fig. 2,4,6, the button is rectangular buttons, is provided with rectangular through-hole on the base body 1
11 ', the rectangular buttons are mounted on the cabinet by the rectangular through-hole 11 '.
Preferably, as seen in figures 3-6, trapezoidal groove 14, the magnet 10 are provided on the side inner wall of the base body 1
It is placed in the trapezoidal groove 14.The present embodiment by being provided with trapezoidal groove 14 on the side inner wall of the base body 1,
Magnet 10 to be placed in the trapezoidal groove 14, and make magnet 10 that the centre of normally opened terminal 8 and normally closed terminal 9 is set,
To increase unidirectional magnetic field, since electric arc generates gas discharge band polarized, using there is a natural attraction between the sexes the principle that identical charges repel each other, to make
Electric arc is absorbed or repels and be not easy to be deposited on silver contact, and silver contact is protected to extend the electrical endurance of switch, from
And realize the function of switch arc extinguishing.
As seen in figures 3-6, the first groove 15, the bottom of the base body 1 are provided in the top inner wall of the base body 1
It is provided with first through hole 16, the acting arm bracket 5 is placed on the cabinet by first groove 15 and first through hole 16
In.
As shown in fig. 3 to 7, described 4 one end of acting arm is provided with the first convex block 41, and it is logical that second is provided in the connection sheet 6
Hole 61, the first convex block 41 in the acting arm 4 are placed in the second through-hole 61 of the connection sheet 6.
As seen in figures 3-6, one end of the connection sheet 6 is provided with the second convex block 62, the other end setting of the connection sheet
There is third convex block 63, third through-hole 51 is provided on the acting arm bracket 5, the third convex block 63 in the connection sheet 6 is set
Set the third through-hole that the second convex block 62 on the top of acting arm 4, the connection sheet 6 is arranged on the acting arm bracket 5
In 51.
As seen in figures 3-6, one end of the elastic slice 7 is provided with the 4th convex block 71, and is provided on the acting arm bracket 5
Four through-holes 52, the 4th convex block 71 on the elastic slice 7 are placed in the fourth hole 52 on the acting arm bracket 5；The bullet
The other end of piece 7 is provided with the second groove 72, is provided with the 5th convex block 42 in the acting arm 4, and the in the acting arm 4 the 5th
Convex block 42 is placed in the second groove 72 of the elastic slice 7.
Preferably, the acting arm bracket 5, normally opened terminal 8 and normally closed terminal 9 are all made of the copper piece production of 1mm thickness.This reality
Example is applied by the way that acting arm bracket 5, normally opened terminal 8 and normally closed terminal 9 to be all made of to the copper piece of 1 millimeters thick, considerably increases switch
Current carrying area, can be adapted for DC high voltage large-current electric power driven tools and garden instrument.
When push button 3, button 3 drives connection sheet 6 to turn downwards with the fourth hole 52 on acting arm bracket 5 for fulcrum
Dynamic, so that acting arm 4 be driven to rotate down, when the angle of acting arm 4 and connection sheet 6 is less than zero degree, acting arm 4 can be in elastic slice
It beats downwards under the action of 7, then the normally opened silver contact 81 on the dynamic silver contact 43 and normally opened terminal 8 in acting arm 4 contacts, real
The turn-on power loss of switch is showed, while elastic slice 7 is compressed.Its principle is: when acting arm 4 is beated downwards, since acting arm 4 is left
There are two wedge shaped projections for end setting, and there are two boss for setting in connection sheet 6, and in 4 folding process of acting arm, acting arm 4 is left
The wedge shaped projection at end can be stuck on the boss of connection sheet 6, so that the distance that moves down of 4 left end of acting arm is restricted, and dynamic touching
The right end of arm 4 can move freely, so that the distance that moves down on 4 right side of acting arm moves down distance greater than 4 left side of acting arm,
Therefore, the normally opened silver contact 81 on the dynamic silver contact 43 and normally opened terminal 8 in acting arm 4 contacts, and realizes the connection function of switch
Can, while elastic slice 7 is compressed.
When decontroling button 3, elastic slice 7 resets, and acting arm 4 can beat upwards under the action of elastic slice 7, then acting arm 4
On dynamic silver contact 43 and normally opened terminal 8 on normally opened silver contact 81 contact, realize the normally closed brake function of switch.
Further, as shown in Fig. 3,5, when button is round button, the bottom of the connection sheet 6 and the base body 2
Reset spring 17 is provided between portion's inner wall.In the present embodiment, due to being cased with a sealing ring 13 around round button, there are one
Therefore fixed friction is installed reset spring 17 additional to offset certain friction, to carry out auxiliary reset, is mainly resetted still
It is the elastic reset by elastic slice.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be with the technical solution of the present invention is modified or equivalently replaced, without departing from this
The spirit and scope of utility model technical solution.
Claims (10)
1. it is a kind of with arc extinguishing structure have brake function high voltage direct current microswitch, which is characterized in that including base body, on
Lid, button, normally opened terminal and normally closed terminal, the case that the base body is extended in one end of the button and the upper cover is constituted
The other end of body, the button is arranged in cabinet, and acting arm is provided with below the button, is set below the acting arm
It is equipped with acting arm bracket, connection sheet is provided with below the acting arm bracket, the acting arm bracket is used to support the company
Contact pin；It is provided with elastic slice between the acting arm and acting arm bracket, is provided with magnetic between the normally opened terminal and normally closed terminal
Iron；It is provided with dynamic silver contact in the acting arm, normally opened silver contact is provided on the normally opened terminal, is set on the normally closed terminal
It is equipped with normally closed silver contact.
2. a kind of high voltage direct current microswitch with arc extinguishing structure with brake function according to claim 1, feature
Be: the button is round button, is provided with circular through hole on the base body, is provided in the circular through hole round recessed
Slot is provided with sealing ring on the round button, and the sealing ring is placed in the circular groove.
3. a kind of high voltage direct current microswitch with arc extinguishing structure with brake function according to claim 2, feature
It is: is provided with reset spring between the connection sheet and the bottom interior wall of the base body.
4. a kind of high voltage direct current microswitch with arc extinguishing structure with brake function according to claim 1, feature
Be: the button is rectangular buttons, and rectangular through-hole is provided on the base body, and the rectangular buttons are logical by the rectangle
Hole is mounted on the cabinet.
5. it is according to claim 1-4 it is a kind of with arc extinguishing structure have brake function high voltage direct current fine motion open
It closes, it is characterised in that: trapezoidal groove is provided on the side inner wall of the base body, the magnet is placed on the trapezoidal groove
In.
6. it is according to claim 1-4 it is a kind of with arc extinguishing structure have brake function high voltage direct current fine motion open
It closes, it is characterised in that: the first groove is provided in the top inner wall of the base body, the bottom of the base body is provided with first
Through-hole, the acting arm bracket are placed in the cabinet by first groove and first through hole.
7. it is according to claim 1-4 it is a kind of with arc extinguishing structure have brake function high voltage direct current fine motion open
It closes, it is characterised in that: one end of the acting arm is provided with the first convex block, and the second through-hole is provided in the connection sheet, described
The first convex block in acting arm is placed in the second through-hole of the connection sheet.
8. a kind of high voltage direct current microswitch with arc extinguishing structure with brake function according to claim 7, feature
Be: one end of the connection sheet is provided with the second convex block, and the other end of the connection sheet is provided with third convex block, the dynamic touching
Third through-hole is provided on arm support, the third convex block in the connection sheet is arranged in the top of acting arm, in the connection sheet
The second convex block be arranged in the third through-hole on the acting arm bracket.
9. a kind of high voltage direct current microswitch with arc extinguishing structure with brake function according to claim 8, feature
Be: one end of the elastic slice is provided with the 4th convex block, is provided with fourth hole on the acting arm bracket, on the elastic slice
4th convex block is placed in the fourth hole on the acting arm bracket；The other end of the elastic slice is provided with the second groove, institute
It states and is provided with the 5th convex block in acting arm, the 5th convex block in the acting arm is placed in the second groove of the elastic slice.
10. it is according to claim 1-4 it is a kind of with arc extinguishing structure have brake function high voltage direct current fine motion open
It closes, it is characterised in that: the acting arm bracket, normally opened terminal and normally closed terminal are the copper piece of 1mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187094.8U CN208368391U (en) | 2018-07-25 | 2018-07-25 | A kind of high voltage direct current microswitch with arc extinguishing structure with brake function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187094.8U CN208368391U (en) | 2018-07-25 | 2018-07-25 | A kind of high voltage direct current microswitch with arc extinguishing structure with brake function |
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| Publication Number | Publication Date |
|---|---|
| CN208368391U true CN208368391U (en) | 2019-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187094.8U Active CN208368391U (en) | 2018-07-25 | 2018-07-25 | A kind of high voltage direct current microswitch with arc extinguishing structure with brake function |
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| CN (1) | CN208368391U (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 |
-
2018
- 2018-07-25 CN CN201821187094.8U patent/CN208368391U/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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG JIABEN ELECTRONICS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |