Auxiliary connecting device and connector

Abstract

The invention discloses an auxiliary connecting device and a connector, and belongs to the technical field of high-voltage connectors, the auxiliary connecting device comprises a first limiting piece, a second limiting piece and a third limiting piece, the first limiting piece is used for placing a first target piece, the second limiting piece is used for placing a second target piece, and the third limiting piece is arranged in the first limiting piece in a penetrating manner; the third limiting piece is provided with a channel used for allowing the connecting piece to penetrate through, and the channel extends in the first direction; in the application, the channel for the connecting piece to pass through and the first target piece are arranged in parallel along the first direction, the channel is communicated with the joint of the first target piece and the second target piece, and the connecting piece reaches the joint of the first target piece and the second target piece through the channel to connect the first target piece and the second target piece. No extra uncovering design needs to be carried out on the switching part of the shell, so that the sealing performance is improved, and meanwhile, the design steps are simplified.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage connectors, and in particular to an auxiliary connecting device and a connector. Background Art

[0002] With the development of electric vehicle technology, the driving range of power batteries is increasing, so the number of battery modules inside the power batteries is also increasing. The voltage of power batteries is also increasing.

[0003] As a boost module is added to electric vehicles, there is a need for additional high-voltage power distribution to achieve the boost function of electric vehicles. The current mainstream boost method requires the stator coil of the electric vehicle motor to be used as the inductor in the entire boost charging circuit. Therefore, a new high-voltage connector demand has been generated in the electric drive assembly of electric vehicles. Due to the unreasonable design of the current high-voltage connector, in order to achieve device connection, the connector is additionally opened at the adapter, and then the opening is sealed, which inevitably increases the design steps and sealing risks. Summary of the invention

[0004] Purpose of the invention: The purpose of the embodiments of the present application is to provide an auxiliary connection device and a connector, aiming to solve the technical problems of complicated connector design and high sealing risk.

[0005] Technical solution: The embodiment of the present application provides an auxiliary connection device, wherein the auxiliary connection device has a first direction and a second direction intersecting each other, and includes:

[0006] a first limiting member extending along the first direction and configured to place a first target member;

[0007] a second stopper extending along the second direction and configured to place a second target part;

[0008] a third limiting member, the third limiting member extending along the first direction, the third limiting member passing through the first limiting member;

[0009] Wherein, along the first direction, the third limiting member has a channel, the channel is configured for a connecting member to pass through, and the first target member and the second target member are configured to be connected through the connecting member.

[0010] Beneficial effect: Compared with the prior art, the embodiment of the present application provides an auxiliary connecting device, and the auxiliary connecting device of the present application includes a first limit member, a second limit member and a third limit member. The first limit member is used to place the first target member, the second limit member is used to place the second target member, and the third limit member is inserted into the first limit member; in the present application, a channel for the connecting member to pass through is opened on the third limit member, and the channel is extended along the first direction; in the present application, the channel for the connecting member to pass through is arranged parallel to the first target member along the first direction, the channel is connected to the connection between the first target member and the second target member, the connecting member reaches the connection between the first target member and the second target member through the channel, and the first target member and the second target member are connected, and there is no need to perform an additional cover opening design at the transition part of the shell, which improves the sealing performance and simplifies the design steps.

[0011] The embodiment of the present application provides a connector, and the connector of the present application includes the auxiliary connecting device provided by the embodiment of the present application, as well as a first target part, a second target part and a connecting part; in the present application, the first target part is inserted into the first limiting part along the first direction, and the second target part is inserted into the second limiting part along the second direction, and the first target part and the second target part are connected through the connecting part; in the present application, a channel for the connecting part to pass through is arranged parallel to the first target part along the first direction, the channel is connected to the connection between the first target part and the second target part, the connecting part reaches the connection between the first target part and the second target part through the channel, and the first target part and the second target part are connected, without the need for an additional cover opening design at the transition part of the shell, thereby improving the sealing performance and simplifying the design steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 A three-dimensional diagram of an auxiliary connecting device and a connector provided in an embodiment of the present application;

[0014] Figure 2 A cross-sectional view of an auxiliary connection device and a connector provided in an embodiment of the present application;

[0015] Figure 3 An exploded perspective view of an auxiliary connecting device and a connector provided in an embodiment of the present application;

[0016] Figure 4 A three-dimensional diagram of the connection between a first target component and a second target component in a connector provided in an embodiment of the present application;

[0017] Figure 5 A perspective view of the first limiting member in the auxiliary connection device and the connector provided by the embodiment of the present application;

[0018] Figure 6 A perspective view of the first limiting member, the third limiting member and the first target member in the auxiliary connection device and the connector provided by the embodiment of the present application;

[0019] Figure 7 A state view of the first flange and the second flange in the auxiliary connection device and the connector provided by the embodiment of the present application abutting against each other to limit the mis-movement of the push block;

[0020] Figure 8 A state view of the first flange moving to the side of the second flange close to the first limiting member in the auxiliary connection device and the connector provided by the embodiment of the present application;

[0021] Reference numerals: 10, the first limiting member; 11, the inner wall; 12, the boss; 13, the first groove; 14, the second groove; 20, the second limiting member; 22, the third groove; 23, the first fixing block; 24, the second fixing block; 25, the guiding port; 26, the second flange; 30, the third limiting member; 31, the channel; 32, the connecting member; 33, the sealing plug; 34, the first opening; 35, the second opening; 40, the push block; 41, the first flange; 50, the housing; 51, the first extension; 52, the second extension; 60, the first target member; 70, the second target member; 1, the plastic tail clip; 2, the wire fixing device; 3, the wire sealing ring; 4, the shielding inner flange; 5, the shielding outer flange; X, the first direction; Y, the second direction. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] Since the charging equipment infrastructure is updated slower than the development of electric vehicles, the voltage of DC fast charging pile equipment is lower than the voltage of electric vehicle power batteries.

[0026] As a result, some models with higher power battery voltage platforms cannot be charged on DC fast charging piles. In order to solve this problem, a boost module is added to the electric vehicle. Through this boost module, the voltage at the output end of the DC fast charging pile can be raised, thereby realizing normal charging of electric vehicles with high voltage platforms.

[0027] In view of this, in order to connect the neutral line of the three phases UVW of the motor and realize the connection of the entire boost charging circuit, as shown in Figures 1 to 8 As shown, the present application provides an auxiliary connection device, including a first limit member 10, a second limit member 20 and a third limit member 30, the first limit member 10 is used to place the first target member 60, the second limit member 20 is used to place the second target member 70, and the third limit member 30 is inserted into the first limit member 10; in the present application, a channel 31 for a connecting member 32 to pass through is opened on the third limit member 30, and the channel 31 is extended along the first direction X; in the present application, the channel 31 for the connecting member 32 to pass through is arranged parallel to the first target member 60 along the first direction X, the channel 31 is connected to the connection between the first target member 60 and the second target member 70, the connecting member 32 reaches the connection between the first target member 60 and the second target member 70 through the channel 31, and the first target member 60 and the second target member 70 are connected, and there is no need to perform an additional cover opening design at the transition part of the shell 50, thereby improving the sealing performance and simplifying the design steps.

[0028] In some embodiments, for the convenience of description, an auxiliary connection device provided in the present application has a first direction X and a second direction Y intersecting each other. Specifically, the angle between the first direction X and the second direction Y may range from 90° to 180°.

[0029] See also Figures 1 to 3 ,as well as Figure 5 and Figure 6, in some embodiments, the first limiting member 10 extends along the first direction X and is used for placing the first target member 60; in the present application, one end of the first target member 60 is a connection end, and the other end of the first target member 60 is an outgoing line end. The connection end and the outgoing line end of the first target member 60 are respectively located at both ends of the first limiting member 10 along the first direction X. The connection end of the first target member 60 is used to connect the second target member 70, and the outgoing line end of the first target member 60 is used to connect to the outside. The part between the connection end and the outgoing line end of the first target member 60 is inserted and fixed in the first limiting member 10 to achieve the insertion and fixation of the first target member 60 in the first limiting member 10.

[0030] Please refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 , in some embodiments, to achieve the insertion and fixation of the first target member 60 and the third limiting member 30, the first limiting member 10 in the present application has an inner wall 11 facing the third limiting member 30, and the inner wall 11 is used for loading and fixing the first target member 60 and the third limiting member 30.

[0031] Please refer to Figure 2 , Figure 5 and Figure 6 , in some embodiments, the first limiting member 10 includes a boss 12. The boss 12 is provided on the inner wall 11 of the first limiting member 10. The boss 12 divides the first limiting member 10 to form a first groove 13 and a second groove 14. The first groove 13 is provided on the side of the third limiting member 30 close to the first target member 60, and the first groove 13 is configured to allow the first target member 60 to be inserted; the second groove 14 is provided on the side of the third limiting member 30 away from the first target member 60, and the second groove 14 is configured to allow the third limiting member 30 to be inserted. In the present application, the extending direction of the first groove 13 is the first direction X, and the extending direction of the second groove 14 is the first direction X to achieve the parallel arrangement of the first target member 60 and the third limiting member 30.

[0032] Please refer to Figure 5 and Figure 6 , in some embodiments, the first groove 13 and the second groove 14 are communicated, so that the first target member 60 can be abutted by the third limiting member 30 to further improve the positioning and locking effect on the first target member 60.

[0033] Please refer to Figures 1 to 6In some embodiments, the auxiliary connection device also includes a limit snap buckle, which is arranged on the groove wall of the first groove body 13, and is used to further snap-fit ​​and fix the first target part 60 after the first target part 60 is inserted into the first groove body 13; specifically, the first target part 60 has a square notch, and when the first target part 60 is installed and fixed, the limit snap buckle is accommodated in the square notch of the first target part 60, so as to further limit the relative position of the first limit part 10 and the first target part 60 through the combination of the notch and the limit snap buckle.

[0034] See also Figure 2 and Figure 3 In some embodiments, the second limiting member 20 is extended along the second direction Y, and the second limiting member 20 is used to place the second target member 70.

[0035] See also Figure 2 , Figure 3 , Figure 7 and Figure 8 In some embodiments, in order to facilitate the fixation of the second target member 70, the second limiting member 20 of the present application includes a third slot body 22, and the third slot body 22 is extended along the second direction Y; the side of the second target member 70 enters from one end of the third slot body 22 and is slidably inserted along the second direction Y; the second target member 70 slides to the connection position with the first target member 60 and stops, waiting for the subsequent connection between the first target member 60 and the first target member 70.

[0036] See also Figure 2 , Figure 7 and Figure 8 In some embodiments, in order to achieve the sliding insertion of the second target part 70 in the third slot body 22, the third slot body 22 of the present application includes a guide opening 25, and the guide opening 25 is located at the end of the third slot body 22 away from the first limit member 10, that is, the insertion entrance end of the second target part 70; in order to facilitate the second target part 70 to enter the guide opening 25 more smoothly, the present application sets two guide ramps at the insertion end of the guide opening 25, and the two guide ramps are respectively connected to the two side walls of the guide opening 25, and the two ramps are set in an "eight" shape, and the opening is toward the end of the third slot body 22 away from the first limit member 10, so that the second target part 70 can be corrected when there is a deviation when entering the guide opening 25, so that the second target part 70 can enter the guide opening 25 smoothly.

[0037] See also Figure 2 , Figure 7 and Figure 8, in some embodiments, after the second target member 70 is inserted into the third slot 22, to further fix the second target member 70, the second limiting member 20 of the present application further includes a first fixing block 23 and a second fixing block 24. The first fixing block 23 is disposed on a side of the third slot 22 close to the first limiting member 10, and is used to limit the second target member 70 from a side of the third slot 22 close to the first limiting member 10; the second fixing block 24 is disposed on a side of the first fixing block 23 away from the first limiting member 10, and is used to limit the second target member 70 from a side of the first fixing block 23 away from the first limiting member 10; so that a region for placing the second target member 70 is formed between the first fixing block 23 and the second fixing block 24, and in cooperation with the insertion and limiting of the side of the second target member 70 by the third slot 22, the locking of the second target member 70 is achieved.

[0038] Please refer to Figure 2 , Figure 7 and Figure 8, in some embodiments, after the second target member 70 enters the third groove 22 from the guiding opening 25, it slides along the third groove 22 to the area formed between the first fixing block 23 and the second fixing block 24 for placing the second target member 70; after reaching the area formed between the first fixing block 23 and the second fixing block 24 for placing the second target member 70, in order to further lock the second target member 70, the second fixing block 24 of the present application includes a fixed end and a free end, and the fixed end of the second fixing block 24 is connected to the second limiting member 20. Along the second direction Y, the fixed end of the second fixing block 24 is located at one end of the second limiting member 20 close to the first limiting member 10, the free end of the second fixing block 24 is located at one end of the second limiting member 20 away from the first limiting member 10, and the free end of the second fixing block 24 includes a yielding locking platform. The yielding locking platform has an abutting surface and an inclined cutting yielding surface; the abutting surface faces the first fixing block 23. After the second target member 70 reaches the area formed between the first fixing block 23 and the second fixing block 24 for placing the second target member 70, the second fixing block 24 cooperates with the first fixing block 23 through the abutting surface to limit the second target member 70 in the second direction Y by abutting. The inclined cutting yielding surface is an inclined surface. Along the second direction Y, the inclined cutting yielding surface faces the side of the second limiting member 20 away from the first limiting member 10, and the included angle between the inclined cutting yielding surface and the abutting surface is an acute angle. So that when the second target member 70 moves along the third groove 22, after the second target member 70 contacts the inclined cutting yielding surface, due to the existence of the abutting contact force, the second target member 70 will exert a downward pressure on the yielding locking platform, driving the free end of the second fixing block 24 to yield forcedly, so that the second target member 70 can continue to move; after the second target member 70 reaches the area formed between the first fixing block 23 and the second fixing block 24 for placing the second target member 70, the second target member 70 is separated from the inclined cutting yielding surface, the abutting contact force of the second target member 70 on the inclined cutting yielding surface disappears, the downward pressure exerted on the yielding locking platform disappears, the free end of the second fixing block 24 rebounds and resets, and the second fixing block 24 cooperates with the first fixing block 23 through the abutting surface to limit the second target member 70 in the second direction Y by abutting.

[0039] Please refer to Figure 2 , Figure 7 and Figure 8 , in some embodiments, the auxiliary connection device further includes a pushing block 40. The pushing block 40 is arranged at one end of the second limiting member 20 close to the first limiting member 10. The pushing block 40 can move along the first direction X towards the connection part of the first target member 60 and the second target member 70, that is, towards the connecting member 32, to assist in connecting the first target member 60 and the second target member 70.

[0040] Please refer to Figures 1 to 8, in some embodiments, along the first direction, the channel 31 has a first opening 34 and a second opening 35 that are connected; the first opening 34 is the inlet of the connecting member 32 and is located at the wire outlet of the first target 60, and a detachable sealing plug 33 is hermetically connected in the first opening 34; the second opening 35 is the inlet of the connecting member 32 and is located at the connection between the first target member 60 and the second target member 70; in this application, the connecting member 32 can be selected as a bolt. The bolt enters the channel 31 from the first opening 34 and connects the first target member 60 and the second target member 70 at or after leaving the second opening 35; when connecting the first target member 60 and the second target member 70, a nut can be pre-installed on the push block 40, and after the bolt passes through the first target member 60 and the second target member 70, it is connected to the nut on the push block 40, and by tightening the bolt and the nut, the first target member 60 and the second target member 70 are connected and locked; alternatively, threads can be provided on the first target member 60 and the second target member 70, and the bolt is fixed by threadedly connecting with the first target member 60 and the second target member 70 to achieve the connection between the first target member 60 and the second target member 70.

[0041] Please refer to Figure 7 and Figure 8, in some embodiments, since the second target member 70 needs to first reach the connection position with the first connection member 60 before the connection member 32 connects and locks the first target member 60 and the second target member 70, the position of the push block 40 needs to be limited to prevent the push block 40 from appearing at the connection position between the first target member 60 and the second target member 70 and interfering with the second target member 70 before the second target member 70 arrives. The push block 40 of the present application has a first flange 41 extending along the second direction Y, and the second limiting member 20 has a second flange 26 extending along the second direction Y. Along the first direction X, at least a part of the orthographic projections of the first flange 41 and the second flange 26 coincide, so that when the first flange 41 and the second flange 26 move relative to each other along the first direction X, they can abut against each other to achieve the purpose of limiting the push block 40 by the cooperation of the first flange 41 and the second flange 26: before the second target member 70 reaches the connection position with the first connection member 60, the first flange 41 is located on the side of the second flange 26 away from the first limiting member 10, so that when the push block 40 moves erroneously towards the first limiting member 10, without the action of an external force, the first flange 41 abuts against the second flange 26 to limit the erroneous movement of the push block 40 and prevent the push block 40 from occupying the position of the second target member 70 and interfering with the second target member 70. After the second target member 70 reaches the connection position with the first connection member 60, under the push of an external force, the push block 40 moves towards the connection member 32, breaking the abutting state between the first flange 41 and the second flange 26, and the first flange 41 moves to the side of the second flange 26 close to the first limiting member 10, so that the connection member 32 can connect the first target member 60 and the second target member 70; specifically, the push block 40 pushes the nut to the connection position of the first target member 60 and the second target member 70. After the bolt passes through the first target member 60 and the second target member 70, it is connected to the nut, and the bolt and the nut are screwed and locked to connect and lock the first target member 60 and the second target member 70.

[0042] Please refer to Figure 1 , in some embodiments, the auxiliary connection device further includes a housing 50. The housing 50 is used to connect and fix the first limiting member 10 and the second limiting member 20 and provide a sealed space for the connection between the first target member 60 and the second target member 70 to achieve electrical isolation. In the present application, since a channel 31 for the connection member 32 to pass through is provided on the third limiting member 30 along the first direction X, the open cover design at the connection between the first target member 60 and the second target member 70 on the housing 50 can be omitted, which can effectively ensure the tightness of the space at the connection between the first target member 60 and the second target member 70. At the same time, the manufacturing process steps of the housing 50 are simplified.

[0043] Please refer to Figure 1In some embodiments, the shell 50 includes: a first extension portion 51 arranged along the first direction X, and at least a portion of the first limit member 10 is inserted into the first extension portion 51; a second extension portion 52 arranged along the second direction Y, and at least a portion of the second limit member 20 is inserted into the second extension portion 52; wherein the first extension portion 51 and the second extension portion 52 are connected.

[0044] See also Figure 1 and Figure 3 In some embodiments, the auxiliary connection device further includes a plastic tail clip 1, a wire holder 2, a wire sealing ring 3, a shielding inner flange 4 and a shielding outer flange 5 which are connected in sequence. The plastic tail clip 1 is used to fix the wire connected to the second target part 70, the wire holder 2 is used to eliminate the stress of the wire, the wire sealing ring 3 is used for sealing, the shielding inner flange 4 is used to achieve the connection between the wire shielding layer and the shell 50, and the shielding outer flange 5 is used to achieve the connection between the wire shielding layer and the shell 50.

[0045] See also Figures 1 to 8 In some embodiments, the embodiments of the present application further provide a connector, including the auxiliary connection device provided in the embodiments of the present application, and:

[0046] The first target component 60 is inserted into the first limiting component 10 , and the first target component 60 is placed along the first direction X; specifically, the first target component 60 is configured as a first conductive copper busbar.

[0047] The second target component 70 is inserted into the second limiting component 20 , and the second target component 70 is placed along the second direction Y; specifically, the second target component 70 is configured as a first conductive copper busbar.

[0048] The first target component 60 and the second target component 70 are connected by the connecting component 32. Specifically, the connecting component is configured as a bolt.

[0049] A connector provided in an embodiment of the present application includes the auxiliary connection device provided in an embodiment of the present application, as well as a first target member 60, a second target member 70 and a connecting member 32; in the present application, the first target member 60 is inserted into the first limit member 10 along the first direction X, and the second target member 70 is inserted into the second limit member 20 along the second direction Y, and the first target member 60 and the second target member 70 are connected through the connecting member 32; in the present application, a channel 31 for the connecting member 32 to pass through is arranged parallel to the first target member 60 along the first direction X, the channel 31 is connected to the connection between the first target member 60 and the second target member 70, and the connecting member 32 reaches the connection between the first target member 60 and the second target member 70 through the channel 31, and the first target member 60 and the second target member 70 are connected, without the need for an additional cover opening design at the transition portion of the shell 50, thereby improving the sealing performance and simplifying the design steps.

[0050] The above has introduced in detail an auxiliary connection device and a connector provided by the embodiments of the present application. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An auxiliary connection device, characterized in that, The auxiliary connection device has an intersecting first direction (X) and second direction (Y), and the auxiliary connection device includes: A first limiting member (10), the first limiting member (10) extending along the first direction (X) and configured to place a first target member (60); A second limiting member (20), the second limiting member (20) extending along the second direction (Y) and configured to place a second target member (70); A third limiting member (30), the third limiting member (30) extending along the first direction (X), the third limiting member (30) being inserted through the first limiting member (10); Wherein, along the first direction (X), the third limiting member (30) has a channel (31), the channel (31) being configured to allow a connecting member (32) to pass through, and the first target member (60) and the second target member (70) being configured to be connected by the connecting member (32).

2. The auxiliary connection device according to claim 1, characterized in that, The first limiting member (10) has an inner wall (11) facing the third limiting member (30), and the first limiting member (10) includes: A boss (12), the boss (12) being provided on the inner wall (11) of the first limiting member (10), the boss (12) separating the first limiting member (10) to form a first groove (13) and a second groove (14), the first groove (13) and the second groove (14) being in communication.

3. The auxiliary connection device according to claim 2, characterized in that, The first groove (13) is provided on a side of the third limiting member (30) close to the first target member (60), and the first groove (13) is configured to allow the first target member (60) to be inserted.

4. The auxiliary connection device according to claim 2, characterized in that, The second groove (14) is provided on a side of the third limiting member (30) away from the first target member (60), and the second groove (14) is configured to allow the third limiting member (30) to be inserted.

5. The auxiliary connection device according to claim 1, characterized in that, The second limiting member (20) includes: A third groove (22), the third groove (22) being configured to allow the second target member (70) to be inserted.

6. The auxiliary connection device according to claim 5, characterized in that, The second limiting member (20) further includes: A first fixing block (23), the first fixing block (23) being provided on a side of the third groove (22) close to the first limiting member (10); A second fixing block (24), the second fixing block (24) being provided on a side of the first fixing block (23) away from the first limiting member (10); Wherein, a region for placing the second target member (70) is formed between the first fixing block (23) and the second fixing block (24).

7. The auxiliary connection device according to claim 5, characterized in that, The third groove (22) includes: A guiding opening (25), the guiding opening (25) being located at one end of the third groove (22) away from the first limiting member (10).

8. The auxiliary connection device according to claim 1, characterized in that, Further included is: A pushing block (40), the pushing block (40) being provided at one end of the second limiting member (20) close to the first limiting member (10); The pushing block (40) is configured to move towards the connecting member (32) to connect the first target member (60) and the second target member (70).

9. The auxiliary connection device according to claim 8, characterized in that, The pushing block (40) has a first flange (41) extending along the second direction (Y), and the second limiting member (20) has a second flange (26) extending along the second direction (Y). The first flange (41) and the second flange (26) are configured to limit the pushing block (40). Wherein, after the pushing block (40) is configured to move towards the connecting member (32), the first flange (41) is located on the side of the second flange (26) close to the first limiting member (10).

10. The auxiliary connection device according to claim 9, characterized in that, Along the first direction (X), at least a part of the orthographic projections of the first flange (41) and the second flange (26) coincide.

11. The auxiliary connection device according to claim 1, characterized in that, It further includes a housing (50), and the housing (50) includes: A first extension part (51) arranged along the first direction (X), and at least a part of the first limiting member (10) is inserted into the first extension part (51); A second extension part (52) arranged along the second direction (Y), and at least a part of the second limiting member (20) is inserted into the second extension part (52); Wherein, the first extension part (51) and the second extension part (52) are connected.

12. An auxiliary connection device according to claim 1, wherein, It further includes a sealing plug (33); The channel (31) has a first opening (34) and a second opening (35) communicating along the first direction (X). The second opening (35) is located at the connection of the first target member (60) and the second target member (70), and the first opening (34) is hermetically connected to the sealing plug (33).

13. A connector, wherein, It includes the auxiliary connection device according to any one of claims 1-12, and: A first target member (60), the first target member (60) is inserted into the first limiting member (10), and the first target member (60) is placed along the first direction (X); A second target member (70), the second target member (70) is inserted into the second limiting member (20), and the second target member (70) is placed along the second direction (Y); A connecting member (32), the first target member (60) and the second target member (70) are connected by the connecting member (32).

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