CN209232709U

CN209232709U - Auxiliary contact structure

Info

Publication number: CN209232709U
Application number: CN201821789890.9U
Authority: CN
Inventors: 袁小琴
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-08-09
Anticipated expiration: 2028-10-31

Abstract

The utility model relates to Low Voltage Electrical Apparatus, and in particular to a kind of auxiliary contact structure comprising shell, normally opened static contact, normally closed static contact, elastic slice contact, push rod, reset spring and common terminal；The elastic slice contact includes elastic slice and the movable contact that elastic slice one end is arranged in；The elastic slice includes elastic slice main body and the first spring leaf, elastic slice main body is set on the outside of common terminal, first spring leaf one end is connected with one end equipped with movable contact of elastic slice main body, the other end is connected with common terminal, make the first spring plate deflection, push rod includes the push rod sticking department with elastic slice contacts mates, and push rod sticking department includes the spring leaf jacking block that the first spring leaf side is arranged in, and spring leaf jacking block is raised to the direction of the first spring plate deflection；The auxiliary contact structure of the utility model, spring leaf jacking block can the first spring leaf of effective means bending direction overturning, ensure that the action message of elastic slice contact.

Description

Auxiliary contact structure

Technical field

The utility model relates to Low Voltage Electrical Apparatus, and in particular to a kind of auxiliary contact structure.

Background technique

The auxiliary contact structure of existing breaker is often used push rod band spring plate contact and moves up and down, and elastic slice contact is dynamic During work, it is easy to happen elastic slice movement or overturning, elastic slice contact is caused to fail.

Summary of the invention

The purpose of the utility model is to overcome the defects of the prior art, provide a kind of auxiliary contact structure, spring leaf Jacking block can the first spring leaf of effective means bending direction overturning, ensure that the action message of elastic slice contact.

To achieve the above object, the utility model adopts the technical scheme that

A kind of auxiliary contact structure comprising shell 11, normally closed static contact 13, elastic slice contact 14, pushes away normally opened static contact 12 Bar 15, reset spring 16 and common terminal 17, the fixation of normally opened static contact 12, normally closed static contact 13, common terminal 17 are set It sets in shell 11,14 one end of elastic slice contact is connected with push rod 15, and the other end is equipped with movable contact 143, and movable contact 143 is respectively and often Static contact 12, the cooperation of normally closed static contact 13 are opened, push rod 15 is inserted on shell 11 and is slidably matched with it, 16 one end of reset spring It is connected with push rod 15, the other end is connected with shell 11；

The elastic slice contact 14 includes elastic slice 140 and the movable contact 143 that 140 one end of elastic slice is arranged in；The elastic slice 140 Including elastic slice main body 1401 and the first spring leaf 1402, elastic slice main body 1401 is set in 17 outside of common terminal, the first spring 1402 one end of piece is connected with one end equipped with movable contact 143 of elastic slice main body 1401, and the other end is connected with common terminal 17, makes The bending of first spring leaf 1402, push rod 15 include the push rod sticking department cooperated with elastic slice contact 14, and push rod sticking department includes setting Spring leaf jacking block 154 in 1402 side of the first spring leaf, spring leaf jacking block 154 is to the curved direction of the first spring leaf 1402 Protrusion.

Preferably, the elastic slice contact 14 further includes second spring piece 1403,1401 one end of elastic slice main body and the first spring Piece 1402 is connected, and the other end is connected with one end of second spring piece 1403, the other end of second spring piece 1403 and public wiring End 17 is connected, and is bent second spring piece 1403, and second spring piece 1403 and the bending of the first spring leaf 1402 are in elastic slice main body 1401 the same side.

Preferably, the common terminal 17 be equipped with the first card slot 170 for cooperating with the first spring leaf 1402 and with The second card slot 171 that second spring piece 1403 cooperates, the first card slot 170 and the second card slot 171 are separately positioned on common terminal 17 two sides, the first card slot 170 and the second card slot 171 shift to install, and the first card slot 170 and the second card slot 171 are located at elastic slice master 1401 the same side of body, and the first card slot 170 relative to the second card slot 171 closer to elastic slice main body 1401.

Preferably, the push rod 15 include push rod operation portion 157 and push rod sticking department, 157 one end of push rod operation portion with push away Rod lock portion side is connected, and the other end is prominent outside shell 11；

The push rod sticking department further includes sticking department mainboard, the first limit plate 152 and the second limit plate 153, the first limit Plate 152 and the second limit plate 153 are oppositely arranged on the other side of sticking department mainboard, and 14 one end of elastic slice contact is arranged in sticking department master Plate side is in contact with it connected, and holding, between the first limit plate 152 and the second limit plate 153, spring leaf jacking block 154 is set It sets on the outside of sticking department mainboard one end, and being equipped between spring leaf jacking block 154 and sticking department mainboard passes through common terminal 17 Avoid holes 159.

Preferably, 152 side of the first limit plate is equipped with the first protrusion 155, and 153 side of the second limit plate is equipped with the Two protrusions 156, the first protrusion 155 and the second protrusion 156 are oppositely arranged and are located at the first limit plate 152 and the second limit plate 153 Between, 14 side of elastic slice contact and sticking department mainboard cooperate, and the other side cooperates with first the 155, second protrusion of protrusion 156.

Preferably, one end of the spring leaf jacking block 154 is connected with sticking department mainboard, and spring leaf jacking block 154 is located at first The bending of spring leaf 1402 is formed by space.

Preferably, the push rod 15 further includes the track muscle 158 being arranged on sticking department mainboard, is equipped on the inside of shell 11 Sliding rail, the setting of track muscle 158 are slidably matched with it in the sliding track.

Preferably, the elastic slice contact 14 includes elastic slice 140 and movable contact 143, and elastic slice 140 includes the bullet of square frame-shaped structure Piece main body 1401, the first spring leaf 1402 and second spring piece 1403, elastic slice main body 1401 are equipped with one end of movable contact 143 to bullet The side bending of piece main body 1401, the first spring leaf 1402 and second spring piece 1403 are arranged at 1401 middle part of elastic slice main body, 1401 both ends of elastic slice main body are connected with 1402 one end of the first spring leaf, 1403 one end of second spring piece respectively, the first spring leaf 1402 other ends are oppositely arranged with 1403 other end of second spring piece.

Preferably, the elastic slice main body 1401 further includes the first lug 1404 and the second lug 1405, the first lug 1404 One end that elastic slice main body 1401 is equipped with movable contact 143 is set, and the another of elastic slice main body 1401 is arranged in the second lug 1405 End, the first lug 1404 and the opposite extension of the second lug 1405, the first spring leaf 1402 pass through the first lug 1404 and elastic slice master Body 1401 is connected, and second spring piece 1403 is connected by the second lug 1405 with elastic slice main body 1401, the first lug 1404 and the Two lugs 1405 are of same size, and the first spring leaf 1402 and second spring piece 1403 are of same size, and 1404 width of the first lug > First spring leaf, 1402 width.

Preferably, the push rod 15 include push rod operation portion 157 and push rod sticking department, 157 one end of push rod operation portion with push away Rod lock portion is vertically connected, and 157 other end of push rod operation portion is prominent outside shell 11；

The push rod sticking department includes sticking department mainboard, the first limit plate 152, the second limit plate 153, spring leaf jacking block 154, the first protrusion 155, the second protrusion 156, track muscle 158 and avoid holes 159, the bottom of sticking department mainboard and push rod operation portion 157 are connected, and the first plane 151 is arranged in top, and the first limit plate 152, the second limit plate 153 are oppositely arranged on the first plane 151 On, spring leaf jacking block 154 is arranged on the outside of sticking department mainboard one end and 154 one end of spring leaf jacking block is connected with sticking department mainboard, Between spring leaf jacking block 154 and sticking department mainboard be equipped with avoid holes 159,152 side of the first limit plate be equipped with the first protrusion 155, Second limit plate, 153 side is equipped with the second protrusion 156, and the first protrusion 155 and the second protrusion 156 are oppositely arranged and are located at the first limit Between position plate 152 and the second limit plate 153, what two track muscle 158 be separately positioned on sticking department mainboard two were oppositely arranged On side.

The auxiliary contact structure of the utility model, 1402 one end of the first spring leaf is connected with elastic slice main body 1401, another End is connected with common terminal 17, is bent the first spring leaf 1402, and the push rod sticking department of push rod 15 includes being arranged in the first bullet The spring leaf jacking block 154 of 1402 side of reed, spring leaf jacking block 154 are avoided to the curved direction protrusion of the first spring leaf 1402 With in 14 action process of spring plate contact, the bending direction of the first spring leaf 1402 is flipped push rod 15, leads to elastic slice contact 14 can not be closed with normally open contact 12, elastic slice contact 14 can not normal reset and the problem of be closed with normally closed interlock 13.This Outside, first limit plate 152 and the second limit plate 153, form effective limit to elastic slice contact 14, avoid elastic slice contact 14 During up and down action, horizontal-shift occurs, influences the use of elastic slice contact 14；First protrusion 155 and second is convex 156 are played, elastic slice contact 14 can be effectively prevented under the driving of reset spring 16, can not occur the case where normal reset, is guaranteed Elastic slice contact 14 is contacted with the normal reliable of normally closed static contact 13.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model auxiliary contact structure；

Fig. 2 is the assembling structure schematic diagram of the utility model elastic slice contact and push rod；

Fig. 3 is another structural schematic diagram of the utility model auxiliary contact structure；

Fig. 4 is the structural schematic diagram of the utility model push rod；

Fig. 5 is another structural schematic diagram of the utility model push rod.

Specific embodiment

Below in conjunction with the embodiment that attached drawing 1-5 is provided, the specific of the auxiliary contact structure of the utility model is further illustrated Embodiment.The auxiliary contact structure of the utility model is not limited to the following description.

The auxiliary contact structure of the utility model comprising shell 11, normally opened static contact 12, normally closed static contact 13, elastic slice Contact 14, push rod 15, reset spring 16 and common terminal 17, normally opened static contact 12, normally closed static contact 13, common terminal 17 It is fixed in shell 11,14 one end of elastic slice contact is connected with push rod 15, and the other end is equipped with movable contact 143, movable contact 143 cooperate with normally opened static contact 12, normally closed static contact 13 respectively, and push rod 15 is inserted on shell 11 and is slidably matched with it, resets 16 one end of spring is connected with push rod 15, and the other end is connected with shell 11；

The auxiliary contact structure of the utility model, 1402 one end of the first spring leaf is connected with elastic slice main body 1401, another End is connected with common terminal 17, is bent the first spring leaf 1402, and the push rod sticking department of push rod 15 includes being arranged in the first bullet The spring leaf jacking block 154 of 1402 side of reed, spring leaf jacking block 154 are avoided to the curved direction protrusion of the first spring leaf 1402 With in 14 action process of spring plate contact, the bending direction of the first spring leaf 1402 is flipped push rod 15, leads to elastic slice contact 14 can not be closed with normally open contact 12, elastic slice contact 14 can not normal reset and the problem of be closed with normally closed interlock 13.

As shown in Figure 1-3, one embodiment of the auxiliary contact structure for the utility model.

Direction as shown in Figure 1, the auxiliary contact structure of the utility model comprising shell 11, normally opened static contact 12, normally closed Static contact 13, elastic slice contact 14, push rod 15, reset spring 16 and common terminal 17, normally opened static contact 12, normally closed static contact 13 It is fixed in shell 11 with common terminal 17, the setting of common terminal 17 is in 11 middle part of shell, common terminal 17 Lower end sequentially pass through elastic slice contact 14 and push rod 15, for the setting of elastic slice contact 14 in 11 lower part of shell, right end and push rod 15 are fixed It is connected, left end is equipped with movable contact 143, and movable contact 143 is arranged between normally opened static contact 12, normally closed static contact 13 and respectively and often Static contact 12, the cooperation of normally closed static contact 13 are opened, push rod 15 is arranged in 11 lower part right end of shell, is slidably matched with shell 11, resets Spring is arranged between push rod 15 and shell 11, for resetting push rod 15.

Direction as shown in figs. 1 and 3, the elastic slice contact 14 is including elastic slice 140 and the dynamic of 140 left end of elastic slice is arranged in Contact 143, the right end and push rod 15 of elastic slice 140 cooperate, and elastic slice 140 includes elastic slice main body 1401 and the first spring leaf 1402, the One spring leaf, 1402 left end is connected with 1401 left end of elastic slice main body, and 1402 right end of the first spring leaf is connected with common terminal 17, It is bent upwards the first spring leaf 1402；The push rod 15 includes the push rod sticking department with the cooperation of 14 right end of elastic slice contact, push rod Sticking department includes the spring leaf jacking block 154 that 1402 downside of the first spring leaf is arranged in, and spring leaf jacking block 154 is located at the first spring Piece 1402 is formed by space and raises upward after being bent.

Preferably, the bending that first spring leaf 1402 occurs can be since 1402 both ends of the first spring leaf are by crowded The raw natural torsion of pressure, first spring leaf 1402 that is also possible to be pre-bent is certain shapes, then in assembly, the first bullet 1402 both ends of reed, which are squeezed, occurs lesser natural torsion.

Preferably, direction as shown in Figure 2, the push rod 15 further include push rod operation portion 157, and push rod operation portion 157 is arranged It is connected below push rod locking portion with its right angle, push rod sticking department further includes the first limit plate being arranged on the upside of sticking department mainboard 152 and second limit plate 153, the first limit plate 152 and the second limit plate 153 be oppositely arranged, one end setting of elastic slice contact 14 On the upside of sticking department mainboard and holding is between the first limit plate 152 and the second limit plate 153.First limit plate, 152 He Second limit plate 153 forms effective limit to elastic slice contact 14, avoids elastic slice contact 14 during up and down action, occurs Horizontal-shift influences the use of elastic slice contact 14.

Preferably, as shown in Fig. 2, the push rod sticking department further includes the first protrusion 155 and the second protrusion 156, first is convex 155 settings are played in 152 side of the first limit plate, 156 setting of the second protrusion is in 153 side of the second limit plate, the first raised 155 Hes Second protrusion 156 is oppositely arranged and between the first limit plate 152 and the second limit plate 153, and one end of elastic slice contact 14 is set It sets on the upside of sticking department mainboard, limit cooperates on the upside of the downside of elastic slice contact 14 and sticking department mainboard, the upside of elastic slice contact 14 Cooperate with the first raised 155 lower ends, the second raised 156 lower ends limit.First protrusion 155 and the second protrusion 156, Ke Yiyou Effect prevent elastic slice contact 14 under the driving of reset spring 16, can not occur the case where normal reset, guarantee elastic slice contact 14 with The normal reliable of normally closed static contact 13 contacts.

Preferably, as shown in figs. 1 and 3, the elastic slice 140 further includes second spring piece 1403, and second spring piece 1403 is right End is connected with the right end of elastic slice main body 1401, and the left end of second spring piece 1403 is connected with common terminal 17, makes second spring Piece 1403 is bent upwards.The second spring piece 1403 is conducive to further accurately, reliably determine elastic slice contact 14 Position is conducive to the action performance for improving elastic slice contact 14.

Preferably, the bending that the second spring piece 1403 occurs can be since 1403 both ends of second spring piece are by crowded The raw natural torsion of pressure, the second spring piece 1403 that is also possible to be pre-bent is certain shapes, then in assembly, the second bullet 1403 both ends of reed, which are squeezed, occurs lesser natural torsion.

Preferably, direction as shown in Figure 3, the common terminal 17 further include cooperating with 1402 right end of the first spring leaf The first card slot 170 and the second card slot 171 with the cooperation of 1403 left end of second spring piece, the first card slot 170 and the second card slot 171 It is respectively positioned on 1401 top of elastic slice main body of elastic slice contact 14, the first card slot 170, the second card slot 171 are located at common terminal 17 left and right sides, and shift to install up and down, the position of the first card slot 170 is lower than the position of the second card slot 171.First card Slot 170, the second card slot 171 are convenient for the assembly of the first spring leaf 1402, second spring piece 1403, are conducive to improve assembly efficiency.

Below with reference to Figure of description, each building block of the utility model is described further.

As shown in Fig. 2, being one embodiment of the utility model elastic slice contact 14.

Direction as shown in Figure 2, the elastic slice contact 14 include elastic slice 140 and the moving contact that 140 upper end of elastic slice is arranged 143。

The elastic slice 140 includes elastic slice main body 1401, the first spring leaf 1402 and second spring piece 1403, elastic slice main body 1401 be square frame-shaped structure, and the first spring leaf 1402 and second spring piece 1403 are arranged at 1401 middle part of elastic slice main body, move touching First 1403 are arranged in the upper end of elastic slice main body 1401, and 1402 upper end of the first spring leaf is connected with the upper end of elastic slice main body 1401, the Two spring leafs, 1403 lower end is connected with the lower end of elastic slice main body 1401, the lower end of the first spring leaf 1402 and second spring piece 1403 Upper end be oppositely arranged.

Preferably, the upper end bending forward of the elastic slice main body 1401.

Preferably, gap, second spring piece are equipped between 1402 two sides of the first spring leaf and elastic slice main body 1401 Gap is equipped between 1403 two sides and elastic slice main body 1401.

Preferably, the elastic slice 140 further includes the first lug 1404 and the second lug 1405, and the setting of the first lug 1404 exists It is coupled inside 1401 upper end of elastic slice main body, between being arranged between the left and right sides and elastic slice main body 1401 of the first lug 1404 Coupled inside 1405 lower end of elastic slice main body, the left and right sides of the second lug 1405 and bullet is arranged in gap, the second lug 1405 Gap is set between piece main body 1401, and the first lug 1404 and the opposite extension of the second lug 1405, the first spring leaf 1402 pass through First lug 1404 is connected with elastic slice main body 1401, and second spring piece 1403 passes through the second elastic slice 1405 and 1401 phase of elastic slice main body Even, length < first spring leaf 1402 length of the first lug 1404, length < second spring piece 1403 of the second lug 1405 Length, the first lug 1404 and the second lug 1405 are of same size, 1403 width of the first spring leaf 1402 and second spring piece It is identical, width > first spring leaf 1403 width of the first lug 1404.First lug 1404, the second lug 1405 Be conducive to the bonding strength that the first spring leaf 1402, second spring piece 1403 and elastic slice main body 1401 is respectively increased, extend elastic slice 140 service life.

Preferably, the elastic slice main body 1401, the first lug 1404, the second lug 1405, the first spring leaf 1402, second Spring leaf 1403 is an integral structure, and is formed using sheet metal pressing and bending.

It is one embodiment of the utility model push rod 15 as shown in Fig. 2,4,5.

As shown in Fig. 2,4,5, the push rod 15 includes push rod operation portion 15 and push rod sticking department, and push rod operation portion 15 is arranged It is connected in push rod locking subordinate side with its right angle.

As shown in Figures 2 and 4, the push rod sticking department includes sticking department mainboard, the first limit plate 152, the second limit plate 153, spring leaf jacking block 154, first the 155, second protrusion 156 of protrusion and avoid holes 159, sticking department mainboard downside are operated with push rod Portion right angle is connected, and the first plane 151, the elastic slice main body of the first plane 151 and elastic slice contact 14 are equipped on the upside of sticking department mainboard 1401 contacts are connected, and the first limit plate 152, the second limit plate 153, the first limit is respectively set in the left and right ends of the first plane 151 Position plate 152 and the opposite parallel interval of the second limit plate 153 are arranged, and 152 side of the first limit plate is equipped with the first protrusion 155, the Two limit plates, 153 side is equipped with the second protrusion 156, and the first protrusion 155 and the second protrusion 156 are oppositely arranged and are located at the first limit Between position plate 152 and the second limit plate 153, the setting of spring leaf jacking block 154 is on the outside of sticking department mainboard rear end and coupled, Avoid holes 159 are equipped between spring jacking block 154 and sticking department mainboard rear end, common terminal 17 is passed through from avoid holes 159.

As shown in Fig. 2, after the front end insertion push rod sticking department of the elastic slice contact 14, the first limit plate 152, second limit Position plate 153 cooperates the left and right translation that can limit elastic slice contact 14, and the first protrusion 155 and the second protrusion 156 can limit elastic slice contact 14 move up and down.

Preferably, as shown in Figures 2 and 4, one track muscle 158 of each side setting of the sticking department mainboard, shell Sliding rail is equipped in 11, track muscle 158 is slidably matched with sliding rail.

Preferably, as shown in figure 4, square three-way groove is arranged in the middle part of the sticking department mainboard.

Preferably, as shown in figs. 1 and 3, it is additionally provided in the shell 11 for fixing normally opened static contact 12, normally closed stationary contact First 13, the limit rib of common terminal 17, be additionally provided with respectively with normally opened static contact 12, normally closed static contact 13, common terminal 17 Connected multiple connecting terminals, are additionally provided with the spring groove for accommodating reset spring 16.

It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims

1. a kind of auxiliary contact structure comprising shell (11), normally opened static contact (12), normally closed static contact (13), elastic slice contact (14), push rod (15), reset spring (16) and common terminal (17), it is normally opened static contact (12), normally closed static contact (13), public Terminals (17) are fixed in shell (11), and elastic slice contact (14) one end is connected with push rod (15), and the other end is equipped with dynamic Contact (143), movable contact (143) cooperate with normally opened static contact (12), normally closed static contact (13) respectively, and push rod (15) is inserted into shell Body is slidably matched on (11) with it, and reset spring (16) one end is connected with push rod (15), and the other end is connected with shell (11)；

It is characterized by: the elastic slice contact (14) includes the movable contact of elastic slice (140) and setting in elastic slice (140) one end (143)；The elastic slice (140) includes elastic slice main body (1401) and the first spring leaf (1402), and elastic slice main body (1401) is set in On the outside of common terminal (17), one equipped with movable contact (143) of the first spring leaf (1402) one end and elastic slice main body (1401) End is connected, and the other end is connected with common terminal (17), is bent the first spring leaf (1402), and push rod (15) includes touching with elastic slice The push rod sticking department of head (14) cooperation, push rod sticking department include spring leaf jacking block of the setting in the first spring leaf (1402) side (154), spring leaf jacking block (154) is raised to the curved direction of the first spring leaf (1402).

2. auxiliary contact structure according to claim 1, it is characterised in that: the elastic slice contact (14) further includes the second bullet Reed (1403), elastic slice main body (1401) one end are connected with the first spring leaf (1402), the other end and second spring piece (1403) One end be connected, the other end of second spring piece (1403) is connected with common terminal (17), keeps second spring piece (1403) curved The same side of song, second spring piece (1403) and the first spring leaf (1402) bending in elastic slice main body (1401).

3. auxiliary contact structure according to claim 2, it is characterised in that: the common terminal (17) is equipped with and the The first card slot (170) of one spring leaf (1402) cooperation and the second card slot (171) cooperated with second spring piece (1403), the One card slot (170) and the second card slot (171) are separately positioned on the two sides of common terminal (17), the first card slot (170) and second Card slot (171) shifts to install, and the first card slot (170) and the second card slot (171) are located at elastic slice main body (1401) the same side, and first Card slot (170) is relative to the second card slot (171) closer to elastic slice main body (1401).

4. auxiliary contact structure according to claim 1, it is characterised in that: the push rod (15) includes push rod operation portion (157) it is connected with push rod sticking department, push rod operation portion (157) one end with push rod sticking department side, the other end is prominent in shell (11) external；

The push rod sticking department further includes sticking department mainboard, the first limit plate (152) and the second limit plate (153), the first limit Plate (152) and the second limit plate (153) are oppositely arranged on the other side of sticking department mainboard, and the setting of elastic slice contact (14) one end is being locked Determine portion mainboard side and be in contact with it connected, and holding is between the first limit plate (152) and the second limit plate (153), spring leaf Jacking block (154) is arranged on the outside of sticking department mainboard one end, and public equipped with making between spring leaf jacking block (154) and sticking department mainboard The avoid holes (159) that terminals (17) pass through.

5. auxiliary contact structure according to claim 4, it is characterised in that: the first limit plate (152) side is equipped with First raised (155), the second limit plate (153) side are equipped with second raised (156), first raised (155) and the second protrusion (156) it is oppositely arranged and between the first limit plate (152) and the second limit plate (153), elastic slice contact (14) side and lock Determine the cooperation of portion's mainboard, the other side cooperates with first raised (155), second raised (156).

6. auxiliary contact structure according to claim 4, it is characterised in that: one end of the spring leaf jacking block (154) with Sticking department mainboard is connected, and spring leaf jacking block (154) is located at the first spring leaf (1402) bending and is formed by space.

7. auxiliary contact structure according to claim 4, it is characterised in that: the push rod (15) further includes that setting is locking Track muscle (158) on portion's mainboard, is equipped with sliding rail on the inside of shell (11), track muscle (158) setting in the sliding track with It is slidably matched.

8. auxiliary contact structure according to claim 1, it is characterised in that: the elastic slice contact (14) includes elastic slice (140) and movable contact (143), elastic slice (140) include the elastic slice main body (1401) of square frame-shaped structure, the first spring leaf (1402) and Second spring piece (1403), one end that elastic slice main body (1401) is equipped with movable contact (143) are rolled over to the side of elastic slice main body (1401) Curved, the first spring leaf (1402) and second spring piece (1403) are arranged in the middle part of elastic slice main body (1401), elastic slice main body (1401) both ends are connected with the first spring leaf (1402) one end, second spring piece (1403) one end respectively, the first spring leaf (1402) other end is oppositely arranged with second spring piece (1403) other end.

9. auxiliary contact structure according to claim 8, it is characterised in that: the elastic slice main body (1401) further includes first Lug (1404) and the second lug (1405), the first lug (1404) setting are equipped with movable contact (143) in elastic slice main body (1401) One end, the other end in elastic slice main body (1401), the first lug (1404) and the second lug is arranged in the second lug (1405) (1405) opposite to extend, the first spring leaf (1402) is connected by the first lug (1404) with elastic slice main body (1401), the second bullet Reed (1403) is connected by the second lug (1405) with elastic slice main body (1401), the first lug (1404) and the second lug (1405) of same size, the first spring leaf (1402) and second spring piece (1403) are of same size, and the first lug (1404) width > First spring leaf (1402) width.

10. auxiliary contact structure according to claim 1, it is characterised in that: the push rod (15) includes push rod operation portion (157) it is vertically connected with push rod sticking department, push rod operation portion (157) one end with push rod sticking department, push rod operation portion (157) is another Distal process goes out external in shell (11)；

The push rod sticking department includes sticking department mainboard, the first limit plate (152), the second limit plate (153), spring leaf jacking block (154), first raised (155), second raised (156), track muscle (158) and avoid holes (159), the bottom of sticking department mainboard and Push rod operation portion (157) is connected, and the first plane (151) are arranged in top, and the first limit plate (152), the second limit plate (153) are opposite It is arranged on the first plane (151), spring leaf jacking block (154) is arranged on the outside of sticking department mainboard one end and spring leaf jacking block (154) one end is connected with sticking department mainboard, is equipped with avoid holes (159) between spring leaf jacking block (154) and sticking department mainboard, and first Limit plate (152) side is equipped with first raised (155), the second limit plate (153) side is equipped with second raised (156), and first is convex It plays (155) and the second protrusion (156) is oppositely arranged and between the first limit plate (152) and the second limit plate (153), two Track muscle (158) is separately positioned on two sides being oppositely arranged of sticking department mainboard.