Sampling wire harness connecting structure and sampling assembly

Abstract

The utility model provides a sampling wire harness connection structure and sampling assembly wherein the sampling wire harness connection structure comprises a bar piece and a connection terminal, the bar piece is provided with an installation hole, the installation hole is internally provided with a backstop structure, the connection terminal is provided with a wire clamping end used for clamping a connection wire and an elastic end used for cooperating with the bar piece, the elastic end is arranged in a deformable manner, and the backstop structure is arranged in the installation hole. When the elastic end is limited in the mounting hole, the elastic end abuts against the stop structure so as to prevent the connecting terminal from exiting from the mounting hole. According to the utility model, the problem of low connection reliability caused by sampling connection realized through a welding process in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of wire harnesses, in particular to a sampling wire harness connection structure and a sampling component. Background Art

[0002] At present, the sampling points of the CCS (integrated busbar) or sampling harness of the battery module are usually fixed by laser welding or ultrasonic welding with the aluminum bar or copper bar of the module through nickel sheets or wires. Whether it is laser welding of nickel sheets or ultrasonic welding of wires, welding equipment and corresponding welding tools are required. The maintenance and regular maintenance of welding equipment require a large cost, and the welding process wastes time, reducing production efficiency. In addition, the phenomenon of cold solder joints in the nickel sheet welding process is not easy to be found. The wire core of the ultrasonic welded wire is easy to oxidize during storage, which is easy to cause solder rejection. The phenomenon of cold solder joints and solder rejection is not easy to be detected in the test circuit conduction test after welding is completed, and there is a phenomenon that the fault does not recur. After the subsequent module is assembled into the battery pack, it is found that the CCS sampling fails, and the maintenance is extremely troublesome. In addition, the welded nickel sheets or wires are not easy to rework and repair. Basically, the entire module or even the battery pack must be replaced, and the economic losses caused are immeasurable. Utility Model Content

[0003] The main purpose of the utility model is to provide a sampling harness connection structure and a sampling component to solve the problem in the prior art that the sampling connection is achieved through a welding process, resulting in low connection reliability.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a sampling harness connection structure is provided, including a bar piece and a connecting terminal, the bar piece has a mounting hole, a stop structure is provided in the mounting hole, the connecting terminal has a clamping end for clamping the connecting wire and an elastic end for cooperating with the bar piece, the elastic end is deformable, and when the elastic end is limited in the mounting hole, the elastic end abuts against the stop structure to prevent the connecting terminal from withdrawing from the mounting hole.

[0005] Furthermore, the connecting terminal includes a main body, an elastic member, and a clamping joint. One end of the main body serves as a wire clamping end. The elastic member is located at an end of the main body away from the wire clamping end. The clamping joint is connected to the elastic member, and the clamping joint and the elastic member form an elastic end.

[0006] Furthermore, there are multiple elastic members, the connecting terminal further comprises a connecting plate, each elastic member is connected to the connecting plate, and the card connector is arranged on the connecting plate.

[0007] Furthermore, a surface of the main body close to the connecting plate is a docking surface, the docking surface has a recessed portion, the elastic member and the connecting plate are both located in the recessed portion, and the elastic member is located between the connecting plate and the surface of the recessed portion.

[0008] Furthermore, the main body, the card connector and the connecting plate are all conductors.

[0009] Furthermore, the card joint has a guide surface on one side facing the mounting hole, the direction in which the card joint is inserted into the mounting hole is a first direction, the card joint has a central axis parallel to the first direction, and the guide surface is inclined toward a direction close to the central axis of the card joint along the first direction.

[0010] Furthermore, the clamping joint has a clamping surface for abutting and cooperating with the stop structure, and a surface on the stop structure for abutting with the clamping surface is arranged parallel to the clamping surface.

[0011] Furthermore, the wire clamping end of the main body has a mounting opening structure, which forms a wire clamping area. The side of the mounting opening structure has a bendable flange, and when the wire is located in the wire clamping area, the flange is deformed and clamps the wire.

[0012] Furthermore, the bar also has an operating hole, which is connected to the mounting hole and the extension directions of the two form an angle, a stop structure is formed at the corner between the operating hole and the mounting hole, and when the elastic end is located in the mounting hole, a part of the elastic end is located in the operating hole.

[0013] According to another aspect of the present invention, a sampling assembly is provided, comprising the above-mentioned sampling harness connection structure.

[0014] The technical solution of the utility model is applied, by setting a connection terminal, setting an elastic end on the connection terminal, setting a mounting hole on the bar piece, and the elastic end cooperates with the mounting hole, so that the connection terminal and the bar piece can be reliably connected through the elastic structure, avoiding the problem of unreliable connection caused by cold welding and welding rejection. At the same time, the cancellation of the welding process makes the production process simpler, saving equipment cost and labor cost. Specifically, when the elastic end of the connection terminal extends into the mounting hole of the bar piece, the elastic end is deformed by the squeezing of the hole wall of the mounting hole, so that the elastic end can continue to extend forward until it is completely placed in the mounting hole of the bar piece. The stop structure of the bar piece makes the elastic end continue to extend into the mounting hole. When the tail of the elastic end reaches the stop structure, the squeezing effect of the hole wall of the mounting hole on the elastic end is reduced, and the deformation of the elastic end begins to recover, so that the elastic end rises. Due to the obstruction of the stop structure, the elastic end cannot withdraw from the mounting hole, and the bar piece and the connection terminal are reliably connected. The wire clamping end of the connection terminal is connected to the wire. In this way, the bar piece and the wire are reliably connected through the connection terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 An axonometric view of a connecting terminal of the utility model is shown;

[0017] Figure 2 shows a front view of the connection terminal;

[0018] Figure 3 A schematic diagram of the structure of a bar is shown;

[0019] Figure 4 The figure shows the assembly diagram of the connection terminal and the bar;

[0020] Figure 5 The assembly schematic of the sampling harness is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Bar; 11. Mounting hole; 12. Operating hole; 13. Stop structure; 20. Connecting terminal; 21. Main body; 22. Elastic member; 23. Card connector; 24. Connecting plate; 25. Wire clamping terminal. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0025] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0026] In order to solve the problem in the prior art that sampling connection is achieved through welding technology, resulting in low connection reliability, the utility model provides a sampling harness connection structure and a sampling component.

[0027] like Figures 1 to 5The utility model provides a sampling harness connection structure, including a bar piece 10 and a connection terminal 20. The bar piece 10 has a mounting hole 11, and a stop structure 13 is provided in the mounting hole 11. The connection terminal 20 has a clamping end 25 for clamping a connecting wire and an elastic end for cooperating with the bar piece 10. The elastic end is deformable. When the elastic end is limited in the mounting hole 11, the elastic end abuts against the stop structure 13 to prevent the connection terminal 20 from withdrawing from the mounting hole 11.

[0028] In this embodiment, a connecting terminal 20 is provided, an elastic end is provided on the connecting terminal 20, and a mounting hole 11 is provided on the bar piece 10. The elastic end and the mounting hole 11 cooperate with each other, so that the connecting terminal 20 and the bar piece 10 can be reliably connected through the elastic structure, thereby avoiding the problem of unreliable connection caused by cold solder joints and solder rejection. At the same time, the cancellation of the welding process makes the production process simpler and saves equipment costs and labor costs. Specifically, when the elastic end of the connecting terminal 20 extends into the mounting hole 11 of the bar piece 10, the elastic end is deformed by the squeezing of the hole wall of the mounting hole 11, so that the elastic end can continue to extend forward until it is completely placed in the mounting hole 11 of the bar piece 10. The stop structure 13 of the bar piece 10 makes it possible for the elastic end to continue to extend into the mounting hole 11. When the tail of the elastic end reaches the stop structure 13, the squeezing effect of the hole wall of the mounting hole 11 on the elastic end is reduced, and the deformation of the elastic end begins to recover, causing the elastic end to rise. Due to the obstruction of the stop structure 13, the elastic end cannot withdraw from the mounting hole 11, and the bar piece 10 and the connecting terminal 20 are reliably connected. The wire clamping end 25 of the connecting terminal 20 is connected to the wire. In this way, the bar piece 10 and the wire are reliably connected through the connecting terminal 20.

[0029] like Figure 1In this embodiment, the connection terminal 20 includes a main body 21, an elastic member 22, and a clamping joint 23. One end of the main body 21 is used as a wire clamping end 25, which is connected to the wire. The elastic member 22 is located at the end of the main body 21 away from the wire clamping end 25. The elastic member 22 is deformed by force, which can cause the elastic end to deform, so that the elastic end can extend into the mounting hole 11 of the bar 10, and gradually restore the deformation when the force gradually decreases. The clamping joint 23 is connected to the elastic member 22, so that when the clamping joint 23 enters the mounting hole 11, it can produce an up-and-down displacement with the deformation of the elastic member 22. The clamping joint 23 and the elastic member 22 form an elastic end. When the elastic end extends into the mounting hole 11, the side wall of the mounting hole 11 squeezes the elastic member 22 to deform, so that the height of the elastic member 22 is reduced, and the clamping joint 23 can smoothly enter the mounting hole 11. The clamping joint 23 extends into the mounting hole 11 and abuts against the step structure. In this embodiment, there are multiple elastic members 22, and the connecting terminal 20 also includes a connecting plate 24 for force transmission. Each elastic member 22 is connected to the connecting plate 24, and the clamping joint 23 is arranged on the connecting plate 24. The elastic members 22 are evenly arranged under the connecting plate 24, so that the force transmission is more uniform, and it can be ensured that the upper surface of the clamping joint 23 remains horizontal when the elastic member 22 recovers its deformation. Moreover, the arrangement of multiple elastic members 22 can ensure that when individual elastic members 22 fail, the elastic end can still maintain the deformation ability, thereby extending the service life of the connecting terminal 20. Among them, the multiple in the embodiment of the present application includes two and more than two.

[0030] In this embodiment, the side of the main body 21 close to the connecting plate 24 is a docking surface, which is essentially Figure 2 The upper surface of the end of the middle main body 21 away from the clamping end 25 is provided with a recess on the docking surface; the elastic member 22 and the connecting plate 24 are both located in the recess, and the elastic member 22 is located between the connecting plate 24 and the surface of the recess, that is, one end of the elastic member 22 is connected to the surface of the recess, and the other end of the elastic member 22 is connected to the connecting plate 24. When the connecting terminal 20 extends into the mounting hole 11, the elastic member 22 at the elastic end is compressed by the hole wall of the mounting hole 11, driving the connecting plate 24 to move toward the direction close to the recess, and even to the inside of the recess, thereby driving the clamping joint 23 to move toward the direction close to the recess, so that the elastic end can smoothly pass through the mounting hole 11.

[0031] The recessed portion provides space for the installation of the elastic member 22 and can also provide a certain shielding effect on the elastic member 22 to ensure the reliability of the overall structure. The main body 21 serves as the installation base for the elastic member 22 and the mounting plate, with one end being connected to the bar 10 and the other end being connected to the wire.

[0032] In this embodiment, the main body 21 , the clamping joint 23 and the connecting plate 24 are all conductors, so that after the connecting terminal 20 is inserted into the bar 10 , it can be reliably connected with it.

[0033] In this embodiment, the side of the clamping joint 23 facing the mounting hole 11 has a guide surface, which can play a guiding role so that the clamping joint 23 can be inserted into the mounting hole 11 more smoothly. In this embodiment, the direction in which the clamping joint 23 is inserted into the mounting hole 11, that is, Figure 4 The direction from right to left is the first direction, the clamping joint 23 has a central axis parallel to the first direction, and the guide surface along the first direction is inclined in the direction close to the central axis of the clamping joint 23, that is, the guide surface along the direction from right to left is inclined from top to bottom, so that when the connecting terminal 20 is inserted into the mounting hole 11, the side wall of the mounting hole 11 abuts against the guide surface and deforms the elastic member 22 by squeezing the clamping joint 23. As the guide surface extends, the clamping joint 23 gradually penetrates into the mounting hole 11, and the deformation of the elastic member 22 gradually increases until the guide surface is completely extended into the mounting hole 11. At this time, the deformation of the elastic member 22 makes the elastic end of the connecting terminal 20 and the bar 10 have the same height as the mounting hole 11, and the elastic member 22 no longer continues to deform, and the clamping joint 23 continues to extend forward into the mounting hole 11 until it is inserted into place. The guide surface in this embodiment is an inclined surface, and the inclined surface processing is relatively simple and cost-saving. Of course, the guide surface can also be set to other shapes such as an arc surface, as long as it can play a guiding role. In this embodiment, the clamping joint 23 has a clamping surface for abutting against the stop structure 13. The clamping surface is located on the side of the clamping joint 23 away from the guide surface. The surface of the stop structure 13 for abutting against the clamping surface is arranged parallel to the clamping surface. Figure 4 As shown, the surface on the stop structure 13 used to abut against the snap-fit ​​surface is the left side surface of the stop structure 13, and the snap-fit ​​surface is the right side surface of the snap connector 23, and the two are arranged in parallel. In this way, when the tail of the snap connector 23 reaches the stop structure 13, the snap connector 23 cooperates with the stop structure 13, and the elastic member 22 restores its deformation to make the snap-fit ​​surface rise, so that the snap-fit ​​surface reaches approximately the same height as the stop structure 13. At this time, the left side surface of the stop structure 13 and the snap-fit ​​surface on the right side of the snap connector 23 produce a mating relationship of abutting the stop, thereby achieving the effect of preventing the connecting terminal 20 from withdrawing from the mounting hole 11.

[0034] In this embodiment, the wire clamping end 25 of the main body 21 has a mounting opening structure, which is in a trumpet shape, forming a wire clamping area, and the side of the mounting opening structure has a bendable flange, and when the wire is in the wire clamping area, the flange is deformed and clamps the wire. Specifically, refer to Figure 1 The flared shape of the mounting opening structure includes an arc segment and a flange. The arc segment has a notch on its circumferential side. The edge of the notch extends outward to form a flange. When installing the wire, the wire is placed in the arc segment of the mounting opening structure, and then the flange of the mounting opening structure is bent inward by a tool, so that the wire is clamped in the mounting opening structure. The mounting opening structure allows the connection terminal 20 to clamp the wire around the periphery, making the connection and conduction between the connection terminal 20 and the wire more reliable.

[0035] like Figure 3 In this embodiment, the bar 10 also has an operating hole 12, which is connected to the mounting hole 11 and the extending directions of the two form an angle. In this embodiment, the axis of the mounting hole 11 and the axis of the operating hole 12 are vertically arranged, that is, the mounting hole 11 and the operating hole 12 are respectively opened on two adjacent surfaces of the bar 10, so that an L-shaped hole is formed as a whole, and a stop structure 13 can be formed at the corner between the operating hole 12 and the mounting hole 11, that is, at the upper corner of the L-shaped hole. Figure 3 As shown, the operation hole 12 of this embodiment is arranged above the mounting hole 11. The arrangement of the operation hole 12 provides a space for elastic recovery when the card connector 23 is inserted into place, and also provides a space for the operator to press the card connector 23, that is, when the elastic end is located in the mounting hole 11, a part of the elastic end is located in the operation hole 12. On the one hand, the elastic force of the elastic member 22 prevents the card connector 23 from slipping out of the operation hole 12, preventing the connection terminal 20 from slipping out of the mounting hole 11 and causing the connection to fail. On the other hand, by pressing the card connector 23 through the operation hole 12 and applying a force to pull out the connection terminal 20, the connection terminal 20 can be pulled out, which is convenient for maintenance. At the same time, the guide surface of the card connector 23 has a certain interference with the operation hole 12, so that the elastic member 22 can still generate a certain elastic force, ensuring the reliability of the connection between the connection terminal 20 and the bar 10, and avoiding the occurrence of large shaking and the like. In this way, when the sampling assembly needs to be repaired or reworked, it is only necessary to disassemble and assemble the connection terminal 20 through the operating hole 12, which reduces the cost of rework and repair, does not require the replacement of the entire CCS, and avoids the appearance and performance problems of the bar 10 caused by repeated welding.

[0036] In this embodiment, when the card connector 23 is located in the operating hole 12 and its deformation is restored, the upper surface of the card connector 23 does not protrude from the surface of the bar piece 10, thereby ensuring the stop cooperation relationship between the card connector 23 and the stop structure 13 and ensuring the insertion effect, and ensuring that the card connector 23 is always located inside the bar piece 10, avoiding the situation where the card connector 23 is accidentally pressed by other components due to protruding from the bar piece 10.

[0037] In this embodiment, the operation hole 12 is located above the mounting hole 11, and a stopper structure 13 is formed at the corner between the mounting hole 11 and the operation hole 12. Accordingly, the clamping joint 23 is located above the main body 21, and the elastic member 22 is located between the main body 21 and the clamping joint 23. In this way, the overall structural form is consistent with the use of the tab 10. Of course, the specific setting position is not limited to the above method, and the position of this embodiment can be turned upside down as a whole, that is, the operation hole 12 is located below the mounting hole 11, and the clamping joint 23 is located below the main body 21, and the elastic member 22 is still located between the main body 21 and the clamping joint 23.

[0038] Meanwhile, the specific structural form of the stop structure 13 is not limited to the above-mentioned manner. The stop structure 13 may also be a protrusion protruding downward on the upper surface of the mounting hole 11. In this case, the operating hole 12 may not be provided, and the side of the protrusion is a surface for contacting with the clamping surface. Alternatively, a groove may be provided on the upper surface of the mounting hole 11. Unlike the operating hole 12, the groove may not penetrate the outer surface of the tab 10. In this case, the stop structure 13 may also be formed at the corner between the groove and the mounting hole 11. Of course, similar to the above, the protrusion and groove on the upper surface of the mounting hole 11 may also be provided on the lower surface of the mounting hole 11.

[0039] In addition to utilizing the structure of the card connector 23 itself to achieve a stop fit with the stop structure 13, a groove may be provided on the connecting terminal 20, and a corresponding protrusion may be provided on the inner wall of the mounting hole 11, and the protrusion may extend into the groove, thereby achieving a stop fit relationship between the connecting terminal 20 and the stop structure 13.

[0040] The implementation process of the overall plan is as follows:

[0041] The stripped part of the wire is crimped with the mounting hole structure of the connecting terminal 20 to achieve an electrically connected fixing effect, and then the main body 21 of the connecting terminal 20 is inserted into the mounting hole 11 of the bar piece 10. The mounting hole 11 is chamfered. At this time, the overall height of the connecting terminal 20 is higher than the height of the mounting hole 11. The worker applies a certain insertion force to the tail of the mounting hole structure of the connecting terminal 20. The head of the card connector 23 of the connecting terminal 20 is cut off and chamfered to form a guide surface for easy insertion into the mounting hole 11. With the insertion force, the card connector 23 will extend into the mounting hole 11 and be subjected to the downward squeezing force of the mounting hole wall on the card connector 23. The connecting plate 24 of the connecting terminal 20 transmits the squeezing force to the elastic member 22 of the connecting terminal 20. The elastic member 22 will produce compression deformation under the squeezing force, so that the connecting terminal 20 is inserted into the mounting hole 11. When the mounting hole structure of the connecting terminal 20 contacts the mounting hole 11, the card connector 23 of the connecting terminal 20 just reaches the operating hole 12 of the bar piece 10. Figure 4 As shown, the tail of the card connector 23 of the connecting terminal 20 is almost flush with the operating hole 12, and the connecting terminal 20 will not be pulled out even if a force is applied to pull out the connecting terminal 20. At this time, the elastic member 22 of the connecting terminal 20 restores a certain deformation, but at this time, the head of the card connector 23 of the connecting terminal 20 will have a certain interference with the operating hole 12, thereby ensuring the reliability of the electrical connection between the connecting terminal 20 and the bar 10.

[0042] When rework or repair of the sampling assembly is required, it is also very convenient. You only need to press down the card connector 23 of the connecting terminal 20 through the operating hole 12, and then pull the crimped wire outward to pull out the connecting terminal 20, and then cut a part of the wire, re-strip the wire, and use the wire crimping pliers to crimp the connecting terminal 20 and the wire.

[0043] This embodiment also provides a sampling component, such as Figure 5 , including the above-mentioned sampling harness connection structure. The number of sampling harness connection structures can be set to multiple as needed, and the bar of each sampling harness connection structure is connected to the pole of each adjacent battery cell. Each sampling harness connection structure can be laid flat on the surface of a board body, so as to achieve unified installation and control.

[0044] It should be noted that, the multiple in the above embodiments refers to at least two.

[0045] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0046] 1. The connection terminal clamping method is used instead of welding to improve the reliability of the connection.

[0047] 2. Simplified the production process, saving equipment costs and labor costs.

[0048] 3. It is more convenient to disassemble and assemble during rework and repair, and there is no need to replace the entire CCS, which reduces the cost of rework and repair, and solves the problem of affecting the appearance and performance of the bar after welding.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sampling harness connection structure, characterized in that: include: A bar plate (10), wherein the bar plate (10) has a mounting hole (11), and a stop structure (13) is provided in the mounting hole (11); A connecting terminal (20), the connecting terminal (20) having a clamping end (25) for clamping a connecting wire and an elastic end for cooperating with the tab (10), the elastic end being deformable, and when the elastic end is limited in the mounting hole (11), the elastic end abuts against the stop structure (13) to prevent the connecting terminal (20) from withdrawing from the mounting hole (11).

2. The sampling harness connection structure according to claim 1, characterized in that: The connecting terminal (20) comprises: A main body (21), one end of the main body (21) serving as the wire clamping end (25); an elastic member (22), the elastic member (22) being located at an end of the main body (21) away from the wire clamping end (25); A clamping joint (23), the clamping joint (23) is connected to the elastic member (22), and the clamping joint (23) and the elastic member (22) form the elastic end.

3. The sampling harness connection structure according to claim 2, characterized in that: There are a plurality of elastic members (22), and the connecting terminal (20) further comprises a connecting plate (24). Each of the elastic members (22) is connected to the connecting plate (24), and the card connector (23) is arranged on the connecting plate (24).

4. The sampling harness connection structure according to claim 3, characterized in that: A side of the main body (21) close to the connecting plate (24) is a docking surface, the docking surface has a recessed portion, the elastic member (22) and the connecting plate (24) are both located at the recessed portion, and the elastic member (22) is located between the connecting plate (24) and the surface of the recessed portion.

5. The sampling harness connection structure according to claim 3, characterized in that: The main body (21), the clamping joint (23) and the connecting plate (24) are all conductors.

6. The sampling harness connection structure according to claim 2, characterized in that: The card joint (23) has a guide surface on one side facing the mounting hole (11); the direction in which the card joint (23) is inserted into the mounting hole (11) is a first direction; the card joint (23) has a central axis parallel to the first direction; and along the first direction the guide surface is inclined toward a direction close to the central axis of the card joint (23).

7. The sampling harness connection structure according to claim 2, characterized in that: The clamping joint (23) has a clamping surface for abutting and cooperating with the stop structure (13), and the surface on the stop structure (13) for abutting against the clamping surface is arranged parallel to the clamping surface.

8. The sampling harness connection structure according to any one of claims 2 to 7, characterized in that: The wire clamping end (25) of the main body (21) has a mounting opening structure, the mounting opening structure forms a wire clamping area, the side of the mounting opening structure has a bendable flange, and when the wire is located in the wire clamping area, the flange is deformed and clamps the wire.

9. The sampling harness connection structure according to any one of claims 1 to 7, characterized in that: The bar (10) further comprises an operating hole (12), wherein the operating hole (12) is connected to the mounting hole (11) and the extension directions of the two form an angle, and the stop structure (13) is formed at the corner between the operating hole (12) and the mounting hole (11), and when the elastic end is located in the mounting hole (11), a part of the elastic end is located in the operating hole (12).

10. A sampling assembly, characterized in that: The invention comprises the sampling harness connection structure according to any one of claims 1 to 9.

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