CN216958592U - Automatic guide structure of contact piece - Google Patents

Abstract

The utility model provides an automatic correcting structure of a contact piece, belongs to the technical field of electric plug structures, and solves the problem of poor contact caused by the forced deviation of a male end elastic piece in the inserting process. The automatic guide structure of the contact of the utility model comprises: a first connection assembly and a second connection assembly. The first connecting assembly is provided with at least one first contact piece, and the first contact piece is partially positioned outside the first connecting assembly; the second connecting assembly is provided with at least one second contact piece unit, the second contact piece unit comprises at least two second contact pieces which are arranged oppositely, one side of each second contact piece is at least partially arranged on the ground, and the other side, back to the ground, of each second contact piece is provided with an elastic reset piece; and when the first connecting assembly and the second connecting assembly are in a conducting state, the plane parts of the second contact pieces are respectively at least partially attached to the first contact pieces. The utility model realizes automatic correction when the first contact piece is inserted into the second contact piece unit.

Description

Automatic guide structure of contact piece

Technical Field

The utility model relates to the technical field of electric plug structures, in particular to an automatic correcting structure of a contact piece.

Background

In cleaning products in the market at present, different components are often connected in a conductive or plug-in manner, so that the electrical connection and the mechanical connection of the whole machine are matched. The different assemblies are usually connected by male end and female end coupling, and the male end elastic sheet and the female end elastic sheet are required to be kept in full contact on a central line after being inserted into the female end, so that the deformation phenomenon of the male end elastic sheet or the female end elastic sheet caused by abnormal stress of the male end elastic sheet and the female end elastic sheet is easy to occur if the male end elastic sheet and the female end elastic sheet are not inserted on the set central line, and further the poor contact and abnormal energization of the connecting structure are caused, or the connecting structure is excessively deformed and damaged. Therefore, it is necessary to design an automatic guiding structure of the contact, so as to avoid the above problems.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcomings of the prior art, the present invention provides an automatic correcting structure of a contact. This contact piece structure is through setting up the elasticity piece that resets in the both sides of second contact piece unit for contact point in the second contact piece unit resets and maintains on the contact position who sets for in the second coupling assembling, thereby when first coupling assembling cartridge to second coupling assembling, the contact point of first contact and second contact piece unit maintains the contact position department that sets for in the second coupling assembling, with the contact failure who leads to and damage the problem of warping because the atress is squinted in the grafting process of public end shell fragment in solving current contact piece structure.

To achieve the above and other related objects, the present invention provides an automatic correcting structure of a contact, including: a first connection assembly and a second connection assembly.

The first connecting assembly is provided with at least one first contact piece, and the first contact piece is partially positioned on the outer side of the first connecting assembly; the second connecting assembly is provided with at least one second contact piece unit, the second contact piece unit comprises at least two second contact pieces which are arranged oppositely, one side of each second contact piece is at least partially arranged on the ground, and the other side, back to the ground, of each second contact piece is provided with an elastic reset piece; when the first connecting assembly and the second connecting assembly are in a non-conducting state, the plane parts of the second contact pieces are at least partially attached to each other; when the first connecting assembly and the second connecting assembly are in a conducting state, the plane parts of the second contact pieces are at least partially attached to the first contact pieces respectively.

In an example of the present invention, the number of the second contact pieces in the second contact piece unit is two, the two second contact pieces are arranged oppositely and form a contact point, a contact surface or a contact gap matched with the first contact piece at the contact position, and a guide structure for guiding the first contact piece to be inserted is arranged on one side of the contact point, the contact surface or the contact gap facing the first connection assembly.

In one example of the utility model, at least one first contact piece is arranged on the first connecting component in parallel and is positioned in the same plane; the contact positions of at least one second contact piece unit arranged in the second connecting component are positioned in the same plane.

In an example of the present invention, the first connection assembly includes a first bracket and a second bracket, and the first bracket and the second bracket are integrally inserted along an extending direction of the first contact piece.

In an example of the present invention, at least one passage is provided in the first connection assembly, the passages being provided along an extending direction of the first contact pieces and equal in number to the number of the first contact pieces, the first contact pieces being provided in the passages.

In an example of the present invention, the first contact is provided with a protruding buckle, the channel is provided with a slot matching with the buckle, and the buckle is fixed in the slot.

In an example of the utility model, the second connecting assembly comprises a third support and a fourth support, the third support and the fourth support are inserted into a whole along the direction that the first contact piece is inserted into the second contact piece unit, and at least one second contact piece unit is clamped between the third support and the fourth support.

In an example of the present invention, the second contact unit includes a first contact piece unit and a second contact piece unit, the first contact piece unit includes a first contact piece and a second contact piece, the second contact piece unit includes a first contact piece and a second contact piece, the first contact piece unit includes a first contact piece and a second contact piece, the second contact piece unit includes a second contact piece, and the second contact piece unit includes a second contact piece.

In an example of the present invention, a limiting groove matched with the elastic reset piece is disposed in the fixing groove, and the elastic reset piece is disposed in the limiting groove and connected to the second contact piece in the fixing groove.

In an example of the utility model, a slide way is arranged in the fixing groove, the slide way is positioned at one end of the fixing groove close to the contact position, a guide piece matched with the slide way is arranged on the second contact piece, and the guide piece is arranged in the slide way.

In an example of the present invention, the second connecting unit is provided with a window on one side of the contact position, the window is opposite to the contact position, and the first contact piece extends to the contact position through the window.

In one example of the utility model, the second contact piece is provided with a guide piece on one side facing the first contact piece, and the guide pieces on the two second contact pieces in the second contact piece unit are oppositely arranged at the contact position and form a guide structure; the opening size of the guiding structure at the side far away from the second contact piece unit is larger than that at the side close to the second contact piece unit.

In one example of the present invention, the pilot structure is a Y-shaped guide slot.

In one example of the present invention, the elastic restoring member is a spring.

According to the automatic guide structure of the contact piece, the elastic reset pieces are arranged on two sides of the second contact piece unit, so that the contact point in the second contact piece unit is reset and maintained at the contact position set in the second connecting assembly. Therefore, when the first contact piece of the first connecting assembly is inserted into the second contact piece unit of the second connecting assembly, due to the action of the elastic reset pieces on the two sides of the second contact piece unit, the contact point of the first contact piece and the second contact piece unit is finally maintained at the contact position in the same plane, and the problem of damage or poor contact caused by unbalanced stress of the first contact piece and the second contact piece unit is solved. Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a three-dimensional view of a self-righting structure of a contact in an embodiment of the utility model.

Fig. 2 is a three-dimensional view of a first connection element of a self-righting structure for a contact in an embodiment of the utility model.

Fig. 3 is a three-dimensional view of a second connecting element of the self-righting structure of a contact of an embodiment of the present invention.

Fig. 4 is a schematic structural view of a second connecting component of the automatic correcting structure of the contact according to an embodiment of the utility model.

Fig. 5 is a schematic structural diagram of a fourth support of the automatic correcting structure of the contact according to an embodiment of the utility model.

Fig. 6 is a cross-sectional elevation view of a self-righting structure for contacts in an embodiment of the present invention.

Fig. 7 is a cross-sectional side view of a self-righting structure for contacts in an embodiment of the present invention.

Fig. 8 is a bottom view of an automatic guiding structure of a contact in an embodiment of the utility model.

Fig. 9 is a schematic diagram of a second contact of the auto-conductive structure of contacts in an embodiment of the utility model.

Description of the element reference numerals

100. A first connection assembly; 110. a first bracket; 111. a channel; 1111. a card slot; 120. a second bracket; 130. a first contact piece; 131. buckling; 200. a second connection assembly; 210. a third support; 211. A window; 220. a fourth bracket; 230. fixing grooves; 231. a limiting groove; 232. a slideway; 240. a second contact piece unit; 241. a second contact piece; 2411. a guide piece; 2412. a guide member; 242. a pilot structure; 243. a contact position; 300. an elastic reset piece.

Detailed Description

The following embodiments of the present invention are provided by specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure of the present invention. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. It is also to be understood that the terminology used in the examples is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the present invention. Test methods in which specific conditions are not specified in the following examples are generally carried out under conventional conditions or under conditions recommended by the respective manufacturers.

It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description only, and are not intended to limit the scope of the utility model, and that changes or modifications in the relative relationship may be made without substantial technical changes and modifications.

Referring to fig. 1 to 7, the present invention provides an automatic guiding structure of a contact. This contact piece structure is through setting up the elasticity piece that resets in the both sides of second contact piece unit for contact point in the second contact piece unit resets and maintains on the contact position that sets for in the second coupling assembling, thereby when first coupling assembling cartridge to second coupling assembling, maintains the contact point department of contact point of first contact piece and second contact piece unit in the contact position that sets for in the second coupling assembling, with the contact failure who leads to and damage the problem of warping because the atress is squinted in the grafting process of public end shell fragment in solving current contact piece structure.

Referring to fig. 1 to 4, the automatic conductive structure of the contact includes a first connection assembly 100 and a second connection assembly 200.

Referring to fig. 2, the first connecting assembly 100 is provided with at least one first contact 130. The first contact 130 is fixed in the first connection assembly 100, and extends along the same direction in the first connection assembly 100 and is partially disposed outside the first connection assembly 100, and the portion of the first contact 130 disposed outside the first connection assembly 100 can be inserted into the second connection assembly 200 along the extension direction of the body of the first contact 130 and contacts with the electrical connection structure in the second connection assembly 200, so as to implement the synchronous mechanical connection and electrical connection of the first connection assembly 100 and the second connection assembly 200.

Referring to fig. 3 to 5, at least one second contact unit 240 is disposed in the second connecting assembly 200, and the number of the second contact units 240 disposed in the second connecting assembly 200 is equal to the number of the first contacts 130. The second contact unit 240 includes at least two second contacts 241 disposed oppositely, one side of the second contact 241 is disposed at least partially on a ground plane, and an elastic reset element 300 is disposed on the side of the second contact 241 opposite to the ground plane. The elastic restoring member 300 has one end connected to the second contact blade 241 and the other end abutting against the inner wall of the second connecting unit 200, and the elastic restoring member 300 is restored and maintained at the contact position 243 set in the second contact blade unit 240 by pressing the corresponding second contact blade 241 through elastic deformation, so that the plane portions of at least two second contact blades 241 in the second contact blade unit 240 form a contact point, a contact surface or a contact gap at the contact position 243. It should be noted that the type of the elastic restoring member 300 used in the present invention is not limited, and the elastic restoring member 300 may be capable of achieving an elastic restoring function, and in an embodiment of the present invention, the elastic restoring member 300 is a spring.

Referring to fig. 4 and 6, in an embodiment of the utility model, in the second connecting assembly 200, the second contact units 240 are disposed in one-to-one correspondence with the first contacts 130, and the contact points, contact surfaces or contact gaps in the at least one second contact unit 240 are disposed at the contact positions 243 set in the second connecting assembly 200, respectively. When the first connection assembly 100 and the second connection assembly 200 are in a non-conductive state, the first contact piece 130 on the first connection assembly 100 is not inserted into the second connection assembly 200, and the planar portions of at least two oppositely arranged second contact pieces 241 in the second contact piece unit 240 are at least partially attached to each other; when the first connection assembly 100 and the second connection assembly 200 are in a conducting state, the first contacts 130 on the first connection assembly 100 are inserted into the corresponding second contact units 240 in the second connection assembly 200, wherein at the contact positions 243, the first contacts 130 respectively at least partially abut against the flat portions of at least two second contacts 241 in the second contact units 240, so as to achieve the electrical connection between the first connection assembly 100 and the second connection assembly 200.

Referring to fig. 4, in an embodiment of the utility model, the number of the second contact blades 241 in the second contact blade units 240 is two, and the planar portions of the two second contact blades 241 are oppositely arranged at the contact positions 243 of the second contact blade units 240. In the second contact piece unit 240, the above-described resilient restoring members 300 provided on the second contact pieces 241 are located on both sides of the second contact piece unit 240 in the same direction, respectively. One end of the elastic reset member 300 abuts against the inner wall of the second connecting assembly 200, the other end of the elastic reset member 300 is connected to the second contact blade 241, and the elastic reset members 300 located at both sides of the second contact blade unit 240 respectively press the second contact blades 241 correspondingly connected to drive the planar portions of the two second contact blades 241 in the second contact blade unit 240 to be oppositely arranged at the contact position 243 to form a contact point, a contact surface or a contact gap and press the first contact blade 130 entering the contact point, the contact surface or the contact gap. The elastic restoring members 300 disposed at both sides of the second contact piece unit 240 may restore and maintain the two second contact pieces 241 correspondingly connected at the set contact position 243 by their own elastic deformation to form a contact point, a contact surface or a contact position of the second contact piece unit 240. Meanwhile, the second contact unit 240 is provided with a pilot structure 242 for guiding the insertion of the first contact 130 at a side of the contact point, the contact surface or the contact gap toward the first connection assembly 100.

Referring to fig. 6 and 7, in the second contact assembly 200, an elastic restoring member 300 is provided between the second contact piece unit 240 and the inner wall of the second contact assembly 200, and the elastic restoring members 300 provided at both sides of the second contact piece unit 240 may elastically deform so that the second contact piece 241 connected to the elastic restoring member 300 is reciprocally moved in the arrangement direction a of the second contact piece unit 240 in the second contact assembly 200, and finally is reset to a contact position 243 to be arranged opposite to another second contact piece 241 in the second contact piece unit 240 to form a contact point, a contact surface or a contact gap. Therefore, when the first contact 130 is inserted into the second contact unit 240, the second contact unit 240 is reciprocally moved in the direction a by the shearing force of the elastic restoring members 300 at both sides and automatically restored to the contact position 243, so that even if the first contact 130 is not inserted into the contact position 243 corresponding to the second contact unit 240, the first contact 130 is drawn by the second contact 241 contacting the first contact 130 and finally automatically guided to move to the contact position 243, and is simultaneously contacted with the second contacts 241 at both sides to realize electrical connection.

It should be noted that the arrangement position of the at least one first contact 130 in the first connection assembly 100 and the contact position 243 of the corresponding second contact unit 240 in the second connection assembly 200 may not be limited. For example, referring to fig. 6 and 7, in an embodiment of the utility model, the at least one first contact 130 is disposed on the first connection assembly 100 in parallel and in the same plane. Meanwhile, at least one second contact unit 240 in the second connecting assembly 200 is also arranged in parallel with each other, and the contact positions 243 of the at least one second contact unit 240 in the second connecting assembly 200 are also located in the same plane. Therefore, when the first connection assembly 100 and the second connection assembly 200 are inserted, at least one first contact 130 on the first connection assembly 100 is inserted into a contact point, a contact surface or a contact gap of at least one second contact unit 240 in the same plane, and the contact point, the contact surface or the contact gap of at least one second contact unit 240 set in the second connection assembly 200 is located in the plane.

Referring to fig. 6, the first connecting element 100 is provided with at least one channel 111. The shape of the passages 111 matches the shape of the first contacts 130, and the number of the passages is equal to the number of the first contacts 130 provided in the first connection assembly 100. The at least one passage 111 is disposed in the first connecting assembly 100 along the extending direction of the corresponding first contact 130, and the first contacts 130 are respectively installed in the corresponding passages 111 and partially disposed outside the passages 111 at the side inserted into the second connecting assembly 200.

Wherein, two sides of the first contact 130 are provided with a latch 131 protruding outwards; meanwhile, a clamping groove 1111 matched with the buckle 131 is further arranged in the channel 111, and the clamping groove 1111 is located on two sides of the channel 111 and communicated with the channel 111. When the first contact 130 is installed in the channel 111, the catch 131 provided on the first contact 130 is fixed in the catch 1111 in the channel 111, so as to limit the position of the first contact 130 in the channel 111.

Referring to fig. 2, in an embodiment of the present invention, the first connecting assembly 100 may include a first bracket 110 and a second bracket 120, and the first bracket 110 and the second bracket 120 are inserted together along an extending direction of the first contact 130 to form the first connecting assembly 100. The channel 111 is disposed in the first bracket 110, the first contact 130 is fixed in the channel 111 of the first bracket 110 in a limited manner by the cooperation of the latch 131 and the slot 1111, and an end of the first contact 130 passes through the second bracket 120 along the direction of the channel 111 and is partially disposed outside the second bracket 120.

Referring to fig. 3 to 5, the second connecting member 200 is provided with fixing grooves 230 at opposite sides of a set contact position 243, and the fixing grooves 230 are used for receiving the second contact blade 241 of the second contact blade unit 240 and the elastic reset piece 300 connected to the second contact blade 241 in the second connecting member 200. Here, the fixing grooves 230 at both sides of the contact position 243 are oppositely disposed, the groove bodies of the fixing grooves 230 are disposed along the arrangement direction a of the second contact piece unit 240 in the second coupling unit 200, and the two second contact pieces 241 of the second contact piece unit 240 are respectively disposed in the fixing grooves 230 at both sides of the corresponding contact position 243 and can be reciprocally moved along the groove bodies 230.

Referring to fig. 3 to 5, in an embodiment of the present invention, the second connecting member 200 may include a third bracket 210 and a fourth bracket 220, and the third bracket 210 and the fourth bracket 220 are inserted into each other along a direction in which the first contact 130 extends into the second connecting member 200 to form the second connecting member 200. The third bracket 210 is disposed on a side of the second connecting assembly 200 facing the first connecting assembly 100, the fourth bracket 220 is disposed on a side of the second connecting assembly 200 facing away from the first connecting assembly 100, the third bracket 210 and the fourth bracket 220 are inserted together to form a fixing groove 230 in an inner matching manner, and the second contact unit 240 is clamped in the fixing groove 230 formed by matching the third bracket 210 and the fourth bracket 220.

In addition, the third holder 210 is further provided with windows 211 at contact positions 243 facing the second connecting unit 200, and the windows 211 are equal in number to the second contact units 240 in the second connecting unit 200 and correspond to the second contact units 240 one by one. Therefore, when the first connection module 100 is inserted into the second connection module 200, the first contact 130 of the first connection module 100 is inserted into the contact point, contact surface or contact gap of the corresponding second contact unit 240 through the window 211.

Referring to fig. 4, 6 and 7, the fixing groove 230 is provided with a limiting groove 231, and the limiting groove 231 is matched with the elastic restoring member 300 and is disposed at one side of the fixing groove 230 close to the inner wall of the second connecting member 200. In the second connecting unit 200, the elastic restoring member 300 is disposed in the stopper groove 231 of the fixing groove 230, one end of the elastic restoring member 300 disposed in the stopper groove 231 abuts against the inner wall of the second connecting unit 200, and the other end is connected to the second contact blade 241. The two second contacts 241 of the second contact unit 240 are pushed along the groove body 230 to the contact position 243 by the elastic restoring member 300, and the two second contacts 241 form a contact point, a contact surface or a contact gap with respect to each other at the contact position 243 and are restored and maintained at the contact position 243 by the elastic restoring member 300.

Referring to fig. 5 to 9, the fixing groove 230 is further provided with a slide 232, the slide 232 is located at one end of the fixing groove 230 near the contact position 243, and the slide 232 in the fixing groove 230 is disposed along the direction a. In an embodiment of the present invention, the sliding way 232 is disposed on the fourth bracket 220, the second contact blade 241 is clamped in the fixing groove 230, and a guide 2412 is disposed on a side contacting with the sliding way 232, and the guide 2412 matches with the shape of the sliding way 232. When the second contact piece 241 is disposed in the fixing groove 230, the guide 2412 of the second contact piece 241 is clamped in the sliding channel 232, and when the second contact piece 241 reciprocates in the direction a in the fixing groove 230, the sliding channel 232 can guide the movement of the second contact piece 241, so as to prevent the second contact piece 241 from deviating from the set moving direction during the movement.

Referring to fig. 4, 7 and 9, in the present embodiment, the second contact blade 241 is further provided with a guide blade 2411. The guide piece 2411 is located on the side of the second contact piece 241 facing the first contact piece 130. In the second contact blade unit 240, the guide blades 2411 of the two second contact blades 241 are disposed opposite to each other at the contact position 243 to form a pilot structure 242. The top of the guiding structure 242 faces the first contact 130 to be inserted into the second contact unit 240, and the bottom of the guiding structure 242 is disposed at the end of the second contact unit 240 where two second contacts 241 form a contact point, a contact surface or a contact gap. Also, the opening of the channel of the leading structure 242 on the side away from the second contact unit 200 is larger than the opening on the side closer to the second contact unit 200, for example, the leading structure 242 may be a Y-shaped guide channel. Therefore, when the first contact piece 130 is inserted into the second contact piece unit 240, even if the first contact piece 130 is misaligned with the contact position 243 in the second contact piece unit 240, the insertion into the contact point, the contact surface, or the contact gap of the second contact piece 240 is guided by the guide structure 242.

According to the automatic guide structure of the contact piece, the elastic reset pieces are arranged on two sides of the second contact piece unit, so that the contact point in the second contact piece unit is reset and maintained at the contact position set in the second connecting assembly. Therefore, when the first contact plug-in mounting of first connecting assembly to the second contact unit of second connecting assembly, because the effect of second contact unit both sides elasticity piece that resets for the contact point that first contact and second contact unit contacted is finally maintained on the contact position in the coplanar, thereby guarantees first contact and second contact unit because of the damage or the bad contact problem that the atress disequilibrium led to. Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (14)

1. An automatic guide structure of contact piece, characterized by comprising:

the first connecting assembly is provided with at least one first contact piece, and the first contact piece is partially positioned outside the first connecting assembly;

the second connecting assembly is provided with at least one second contact piece unit, the second contact piece unit comprises at least two second contact pieces which are arranged oppositely, one side of each second contact piece is at least partially arranged on a ground plane, and the other side, back to the ground plane, of each second contact piece is provided with an elastic reset piece;

when the first connecting assembly and the second connecting assembly are in a non-conducting state, the plane parts of the second contact pieces are at least partially attached to each other;

when the first connecting assembly and the second connecting assembly are in a conducting state, the plane parts of the second contact pieces are at least partially attached to the first contact pieces respectively.

2. The automatic correcting structure of the contact blades of claim 1, characterized in that the number of the second contact blades in the second contact blade unit is two, the two second contact blades are arranged oppositely and form a contact point, a contact surface or a contact gap matched with the first contact blade at the contact position, and the side of the contact point, the contact surface or the contact gap facing the first connecting component is provided with a correcting structure for guiding the first contact blade to be inserted.

3. The wafer auto-centering structure of claim 2, wherein said at least one first wafer is disposed in parallel on said first connection assembly and in the same plane; the contact positions of the at least one second contact piece unit arranged in the second connecting assembly are located in the same plane.

4. The automatic guide structure of the contact of claim 1, wherein the first connection assembly comprises a first bracket and a second bracket, and the first bracket and the second bracket are integrally inserted along the extending direction of the first contact.

5. The automatic guide structure of contact blades of claim 1, wherein said first contact assembly has at least one passage formed therein, said passage being formed along the direction of extension of said first contact blades and equal in number to the number of said first contact blades, said first contact blades being disposed in said passage.

6. The automatic guide structure of contact pieces of claim 5, wherein said first contact piece has a protruding catch, and said channel has a locking groove therein, said catch being fixed in said locking groove.

7. The automatic guide structure of the contact of claim 1, wherein the second connection assembly comprises a third bracket and a fourth bracket, the third bracket and the fourth bracket are integrally inserted in a direction in which the first contact is inserted into the second contact unit, and the at least one second contact unit is clamped between the third bracket and the fourth bracket.

8. The automatic guide structure of contact pieces of claim 2, wherein the second connection unit is provided with fixing grooves at both sides of the contact position, the fixing grooves at both sides of the contact position are arranged in the same direction, and two second contact pieces of the second contact piece unit are respectively arranged in the corresponding fixing grooves at both sides of the contact position and reciprocate in the fixing grooves.

9. The automatic correcting structure of contact blades of claim 8, wherein the fixing groove is provided with a limiting groove matched with the elastic reset piece, and the elastic reset piece is arranged in the limiting groove and connected to the second contact blade in the fixing groove.

10. The wafer auto-centering structure of claim 8, wherein a slide is disposed in the holding groove at an end of the holding groove near the contact position, and a guide member is disposed on the second wafer and is matched with the slide, and the guide member is disposed in the slide.

11. The automatic correcting structure of the contact blades of claim 2, wherein the second connecting component is provided with a window on one side of the contact position, the window is opposite to the contact position, and the first contact blade extends to the contact position through the window.

12. The automatic correcting structure of the contact pieces of claim 2, wherein the second contact pieces are provided with guide pieces on the side facing the first contact pieces, and the guide pieces on the two second contact pieces in the second contact piece unit are arranged opposite to each other at the contact position and form the correcting structure; the opening size of the guiding structure at the side far away from the second contact piece unit is larger than that at the side close to the second contact piece unit.

13. The wafer auto-centering structure of claim 2, wherein the centering structure is a Y-shaped guide slot.

14. The wafer auto-centering structure of claim 1, wherein said resilient return member is a spring.

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