CN202549664U

CN202549664U - Trigger button and switch with trigger button

Info

Publication number: CN202549664U
Application number: CN 201220032209
Authority: CN
Inventors: 梁世颇; 包章尧; 陈嘉; 胡长春; 严寒义
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2012-02-01
Filing date: 2012-02-01
Publication date: 2012-11-21
Anticipated expiration: 2022-02-01
Also published as: DE202013000198U1

Abstract

The utility model relates to a trigger button which is used for a switch (100). The trigger button comprises a shell (1) and a key cap (2). The key cap (2) can move between an initial position and a trigger position relative to the shell (1). The key cap (2) comprises a basal body (2a). The trigger button is characterized in that the key cap additionally comprises a trigger column (2b) and at least one locking column (3) which respectively extend from one side of the basal body (2a), each locking column (3) comprises a locking part, the locking part is locked onto the wall of the shell (1) when the key cap (2) is at the initial position, and the locking part is separated from the wall of the shell (1) and is guided to enter the shell and trigger the switch (100) when the key cap (2) is at the trigger position. Besides, the utility model additionally relates to the switch (100) with the trigger button.

Description

Trigger button and switch with this trigger button

Technical field

The utility model relates to a kind of trigger button that is used for switch.In addition, the utility model also relates to a kind of switch with trigger button of the above-mentioned type.

Background technology

In the electronic equipment, the circuit carrier use of printed circuit board (PCB) as the electronic device of electronic equipment is widely used in modern times.On printed circuit board (PCB), often to arrange some switches, thereby switch on and off the circuit on the printed circuit board (PCB).For this reason, need be equipped with necessary trigger button, put line operate into to split for switch.But trigger button structure relative complex of the prior art is unfavorable for installing.Simultaneously, because some special requirements, the direction that trigger button is installed has some special requirements, for example on the surface of trigger button, has some patterns or sign.Installation personnel must pass through training could discern the installation direction of correctly discerning trigger button, but this is a relative complex and time-consuming, can not guarantee the correctness of installing fully.

The utility model content

For this reason, the utility model provides a kind of trigger button, this trigger button is used for switch to be operated, and its assembling easily, and is simple in structure and can guarantee the correctness of assembling to have good fool proof design.In addition, the utility model has also proposed a kind of switch with trigger button of the above-mentioned type.

The purpose of the utility model realizes thus that through a kind of trigger button that is used for switch promptly this trigger button comprises housing and keycap.Keycap moves between initial position and trigger position with respect to housing and keycap comprises matrix; Wherein, Keycap also comprises respectively the extended trigger column of a side and at least one locking column at matrix, and wherein, locking column comprises the lock part; Lock onto in the initial position lock part on the housing wall of housing, break away from the guiding of housing wall and trigger column in the trigger position lock part and get into housing and trigger switch.In the design of the utility model, locking column guarantees that keycap is connected with the mobilizable of housing, when guaranteeing that keycap can be buckled on the housing, also allows keycap between initial position and trigger position, to move, thereby guarantees the reliable triggering to switch.In addition, through simply locking column being snapped in the housing, just realized the installation of keycap on housing.The structure that this has greatly simplified trigger button has reduced mounting hardness.

Preferably; Keycap also comprises an extended guiding latch from the matrix; Wherein on housing, be formed with one first through hole that is complementary with the guiding latch; Wherein, the cross section profile of first through hole is consistent with the cross section profile of guiding latch, and the latch that wherein leads passes first through hole and is directed in the housing at trigger position.When the assembly direction of keycap is incorrect, the guiding latch just can not be corresponding with the position of first through hole, thereby when operating, the guiding latch just can not insert in first through hole, thereby trigger column can not split the pass trigger.

Optional is; Keycap also comprises extended paired guiding latch from the matrix; Paired guiding latch is asymmetric with respect to trigger column, wherein is formed with respectively the first paired through hole that is complementary with the guiding latch in the bottom surface, wherein; The cross section profile of first through hole is consistent with the cross section profile of corresponding guiding latch respectively, and the latch that wherein leads passes corresponding with it first through hole and is directed in the housing at trigger position.Because it is special-purpose being used for first through hole of each guiding latch; That is to say that the guiding latch can only be inserted in first through hole that himself is equipped with specially, therefore; Under the situation that assembly direction makes a mistake; Keycap can not be operated, and then can not split to close and trigger, thereby has realized reliable fool proof design.

Design according to the utility model proposes, and locking column is designed to flexible and the lock part is designed to grab.When assembling, flexible locking column receives the extruding of housing and bends, after the lock part that is designed to grab is snapped in the housing, and the resilience under the effect of elastic force of flexible locking column, thus snap onto in the housing reliably.

Further preferably; The surface of housing is formed with the sunk area that is used to hold keycap; Wherein, be used to lead first through hole of latch, at least one third through-hole of being used for second through hole of trigger column and being used at least one locking column is opened in the bottom surface of sunk area respectively.These through holes allow trigger column, guiding slot pin and the locking column of keycap to extend in the housing, thereby allow keycap between initial position and trigger position, to move.

Preferably, on the housing wall that limits third through-hole, be formed with the stopper section.Grab can be snapped on this stopper section reliably.

Propose according to the utility model, at initial position, first distance between the matrix of keycap and the bottom surface of sunk area; The free terminal of trigger column and the second distance between the switch, the 3rd distance between the fitting surface of the lock part of locking column and installation switch, and the minimum triggering stroke that needs for trigger switch satisfies following relational expression; Be B+m≤A＜C; Wherein A is first distance, and B is a second distance, and C is that the 3rd distance and m are the minimum stroke that triggers.

Propose according to the utility model, trigger button also comprises at least one back-moving spring.Utilize back-moving spring to realize the simple reseting movement of keycap between initial position and position.

Preferably, back-moving spring is a helical spring that is sleeved on the trigger column.Optional is that back-moving spring is designed to paired leaf spring, and changes this leaf spring is arranged on trigger column between keycap and housing relative both sides.

Preferably, the degree of depth of sunk area is so set, promptly at initial position, and the outer surface of keycap and the flush of housing.So the trigger button of design is more attractive in appearance in appearance.

Advantageously, trigger column is designed to cross or circle on the cross section, and the matrix of keycap is designed to circle, square, rectangle or hexagon on the cross section, and the matrix of keycap also can be designed to other shapes as requested certainly.

Preferably; The quantity of guiding latch and locking column is respectively two; The guiding latch is arranged on the both sides of trigger column on matrix, and locking column is arranged on the other both sides of trigger column on matrix, and is cross each other with locking column between the guiding latch and arranges.Certainly, the position between guiding latch and the locking column can exchange.

Another purpose of the utility model realizes through a kind of switch with trigger button of the above-mentioned type.This construction of switch is simple, and assembling is easy, and has the fool proof design.

Should be appreciated that above generality is described and following detailed description is all enumerated and illustrative, purpose is in order to the utility model that requires to protect further explanation to be provided.

Description of drawings

Accompanying drawing constitutes the part of this specification, is used to help further understand the utility model.These accompanying drawing diagrams the embodiment of the utility model, and be used for explaining the principle of the utility model with specification.Identical in the accompanying drawings parts are represented with identical label.Shown in the figure:

Fig. 1 is the sectional view according to the switch of the utility model;

Fig. 2 is the sketch map according to the keycap of the trigger button of the utility model;

Fig. 3 is the vertical view according to the housing of the trigger button of the utility model.

Embodiment

Fig. 1 shows the sectional view according to the switch of the utility model.From figure, can see the trigger button according to the utility model, this trigger button comprises housing 1 and keycap 2, and keycap 2 moves between initial position and trigger position with respect to housing 1; Keycap 2 comprises matrix 2a, and wherein, keycap 2 also comprises respectively at the extended trigger column 2b of the side of matrix 2a (referring to Fig. 2) and two locking columns 3; Wherein, Locking column 3 comprises the lock part, and in the present embodiment, this locking column 3 is designed to flexible and the lock part is designed to grab 3a.Lock onto on the housing wall of housing 1 at initial position grab 3a, be directed into housing 1 and trigger switch 100 at trigger position grab 3a disengaging housing wall and trigger column 2b.This grab 3a is buckled on the housing wall that limits third through-hole 8 and is formed with on the stopper section.In addition, visible from figure, also comprise back-moving spring 5 according to the trigger button of the utility model.In first embodiment of the utility model shown in Fig. 1, back-moving spring 5 is designed to helical spring, and this helical spring is sleeved on the trigger column 2b.

In unshowned second embodiment of the utility model, back-moving spring 5 is designed to leaf spring, and the quantity of leaf spring is two, and between keycap 2 and housing 1, is arranged on the both sides of trigger column 2b.

In addition, in order to obtain good surface appearance, the surface of housing 1 is formed with the sunk area 1a that is used to hold keycap 2, and the degree of depth of sunk area 1a so sets, promptly at initial position, and the flush of the outer surface of keycap 2 and housing 1.And in order to guarantee trigger switch 100 reliably; First distance A between the matrix 2a of keycap 2 and the bottom surface of sunk area 1a; Second distance B between the free terminal of trigger column 2b and the switch 100; The lock part of locking column 3 and the 3rd distance C between the fitting surface 101 of switch 100 is installed, and for the trigger switch 100 needed minimum stroke m that trigger satisfy following relational expression, i.e. B+m≤A＜C.

Fig. 2 shows the sketch map according to the keycap of the trigger button of the utility model.First embodiment according to the keycap of the trigger button of the utility model has been shown among the figure, and in this first embodiment, keycap 2 comprises matrix 2a and at the extended trigger column 2b of the side of matrix 2a and two locking columns 3 and two guiding latches 4.In the present embodiment, trigger column 2b is designed to cross or circle on the cross section, and the cross section of matrix 2a has foursquare shape, and certainly as required, the cross section of this matrix 2a also can be designed to other shapes such as circle, rectangle or hexagon.Further visible from figure, guiding latch 4 is arranged on the both sides of trigger column 2 on matrix 2a, and locking column 3 is arranged on the other both sides of trigger column 2 on matrix 2a, and guiding latch 4a is the cross layout each other with locking column 3.In addition, visible from figure, be formed with grab 3a at the end of locking column 3.In addition, two guiding latches 4 are asymmetric each other, and in the present embodiment, one of them guiding latch 4 is less than the size of another guiding latch 4 on cross section in the size on the cross section.And be consistent with the cross section profile of the cross section profile of corresponding first through hole 6 of guiding latch 4 and corresponding guiding latch 4, thereby the latch 4 that leads can not be inserted into first through hole 6 that is used for other guiding latch 4.

In unshowned second embodiment of the utility model, extend a guiding latch 4 in the side of the matrix 2a of keycap 2, and on housing 1, be formed with first through hole 6 that is complementary with this guiding latch 4.

Fig. 3 shows the vertical view according to the housing 1 of the trigger button of the utility model.First embodiment according to the utility model has been shown among the figure; In the present embodiment; The surface of housing 1 is formed with the sunk area 1a that is used to hold keycap 2, and two first through holes 6 of the latch 4 that is used to lead, two third through-holes 8 that are used for second through hole 7 of trigger column 2b and are used for locking column 3 are opened in the bottom surface of sunk area 1a respectively.

In unshowned second embodiment of the utility model, on the bottom surface of sunk area 1a, only be formed with one first through hole 6, it is used for being used with a guiding latch 4 that on keycap 2, forms.

More than be merely the preferred embodiment of the utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.Any modification of being done within all spirit and principles at the utility model, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.

Reference number

1 housing

The 1a sunk area

2 keycaps

The 2a matrix

The 2b trigger column

3 locking columns

The 3a grab

4 guiding latches

5 back-moving springs

6 first through holes

7 second through holes

8 third through-holes

A first distance

The B second distance

C the 3rd distance

The minimum stroke that triggers of m

100 switches.

Claims

1. trigger button that is used for switch (100); Comprise: housing (1) and keycap (2); Said keycap (2) moves between initial position and trigger position with respect to said housing (1); Said keycap (2) comprises matrix (2a), it is characterized in that, said keycap (2) also comprises respectively starts from trigger column (2b) and at least one locking column (3) that said matrix (2a) extends at a pleurapophysis of said matrix (2a); Wherein, Said locking column (3) comprises the lock part, locks onto on the housing wall of said housing (1) in the said lock part of said initial position, breaks away from said housing wall and said trigger column (2b) in the said lock part of said trigger position and is directed into said housing (1) and triggers said switch (100).

2. trigger button according to claim 1; It is characterized in that; Said keycap (2) also is included in the said guiding latch (4) of a pleurapophysis of said matrix (2a) from said matrix (2a) extension; Wherein on said housing (1), be formed with one first through hole (6) that is complementary with said guiding latch (4); Wherein, the cross section profile of said first through hole (6) is consistent with the cross section profile of said guiding latch (4), and wherein said guiding latch (4) passes said first through hole (6) and is directed in the said housing (1) at said trigger position.

3. trigger button according to claim 1; It is characterized in that; Said keycap (2) also is included in the paired guiding latch (4) of a pleurapophysis of said matrix (2a) from said matrix (2a) extension; Paired said guiding latch (4) is asymmetric in said trigger column (2b) against each other; Wherein go up to form respectively paired first through hole (6) that is complementary with said guiding latch (4) at said housing (1); Wherein, the cross section profile of said first through hole (6) is consistent with the cross section profile of corresponding said guiding latch (4) respectively, and wherein said guiding latch (4) passes with it corresponding said first through hole (6) and is directed in the said housing (1) at said trigger position.

4. according to each described trigger button in the claim 1 to 3, it is characterized in that said locking column (3) is designed to flexible and said lock part and is designed to grab (3a).

5. according to each described trigger button in the claim 1 to 3; It is characterized in that; Be formed with the sunk area (1a) that is used to hold said keycap (2) on the surface of said housing (1); Wherein, be used for the bottom surface that said first through hole (6) of said guiding latch (4), at least one third through-hole (8) of being used for second through hole (7) of said trigger column (2b) and being used for said at least one locking column (3) are opened in said sunk area (1a) respectively.

6. trigger button according to claim 5 is characterized in that, on the housing wall that limits said third through-hole (8), is formed with the stopper section.

7. trigger button according to claim 5; It is characterized in that; At said initial position; Between the said matrix (2a) of said keycap (2) and the said bottom surface of said sunk area (1a) first distance (A), the second distance (B) between the free terminal of said trigger column (2b) and the said switch (100), the 3rd distance (C) between the fitting surface (101) of the said lock part of said locking column (3) and the said switch of installation (100); And for triggering stroke (m), the minimum that triggers said switch (100) and need satisfies following relational expression, i.e. B+m≤A＜C.

8. according to each described trigger button in the claim 1 to 3, it is characterized in that said trigger button also comprises at least one back-moving spring (5).

9. trigger button according to claim 8 is characterized in that, said back-moving spring (5) is a helical spring that is sleeved on the said trigger column (2b).

10. trigger button according to claim 8 is characterized in that, said at least one back-moving spring (5) is the leaf spring that is provided with in pairs, and said leaf spring is arranged on the relative both sides of said trigger column (2b) between said keycap (2) and said housing (1).

11. trigger button according to claim 5 is characterized in that, the degree of depth of said sunk area (1a) is so set, promptly at said initial position, and the outer surface of the said matrix (2a) of said keycap (2) and the flush of said housing (1).

12., it is characterized in that said trigger column (2b) is designed to cross or circle according to each described trigger button in the claim 1 to 3 on the cross section.

13., it is characterized in that the said matrix (2a) of said keycap (2) is designed to circle, square, rectangle or hexagon according to each described trigger button in the claim 1 to 3 on the cross section.

14. according to each described trigger button in the claim 1 to 3; It is characterized in that; The quantity of said guiding latch (4) and said locking column (3) is respectively two, and wherein, said guiding latch (4) is arranged on the both sides of said trigger column (2) on said matrix (2a); And said locking column (3) is arranged on the other both sides of said trigger column (2) on said matrix (2a), and said guiding latch (4a) and said locking column (3) are cross each other and arrange.

15. a switch (100) is characterized in that, said switch has according to each described trigger button in the claim 1 to 14.