A floating connection structure

Abstract

The application provides a floating connection structure, comprising a base and a connection assembly, the base is provided with a floating cavity and is electrically connected with an external circuit, the connection assembly comprises a connecting piece and a floating piece, the connecting piece partially extends into the floating cavity, the floating piece is arranged on the connecting piece and abuts against the base in the floating cavity, and a pin is inserted into one end of the connecting piece away from the floating piece to form electrical conduction with the external circuit. When the connecting piece is subjected to a biasing force of the pin, the connecting piece drives the floating piece to elastically deform along the direction of the biasing force, so that the connecting piece floats relative to the base in the floating cavity and is kept in electrical conduction with the base through the floating piece during the floating process. The application can absorb the force caused by the biasing insertion of the pin or the assembly deviation, reduce the risk of local stress concentration and unstable contact of the connecting piece, and improve the floating compensation capability and the stability of the conductive connection.

Description

Technical Field

[0001] This application relates to the field of connectors, and more particularly to a floating connection structure. Background Technology

[0002] Connectors, terminal blocks, and other conductive connection structures are commonly used to establish electrical connections between pins and external circuits, and are frequently found in battery packs, controllers, charging interfaces, industrial equipment, and other electrical connection scenarios. During use, pins need to be inserted into corresponding conductive connectors, and current is transferred to circuit boards, busbars, or other external circuits through these connectors. Due to potential pin position deviations, housing assembly tolerances, and vibration shifts during use, the pins and conductive connectors are not always perfectly coaxial or perfectly aligned during insertion.

[0003] Existing conductive connection structures typically fix the conductive connector directly within a base or housing. One end of the connector is used to insert a pin, while the other end is connected to an external circuit via welding, crimping, riveting, or abutment. While this structure meets basic conductivity requirements, the conductive connector has limited room for movement relative to the base. When the pin is inserted at an angle, or when it is subjected to lateral or vibration loads during use, the biasing force can easily act directly on the insertion and fixed connection areas of the conductive connector.

[0004] Therefore, during long-term insertion, removal, or offset insertion, the existing structure is prone to problems such as localized stress concentration on the conductive connector, insufficient or excessive elastic deformation of the insertion end, and unstable contact pressure. At the same time, since the conductive connector lacks floating compensation capability relative to the base, the pin offset can easily cause increased insertion resistance, aggravated contact wear, and even a decrease in the conductivity stability between the conductive connector and the external circuit. Summary of the Invention

[0005] In view of this, it is necessary to provide a floating connection structure that can achieve micro-float compensation when the pin is subjected to bias force and maintain electrical conduction during the floating process, so as to solve the above problems.

[0006] Embodiments of this application provide a floating connection structure, including: The base has a floating cavity and is electrically connected to an external circuit. A connecting assembly includes a connector and a floating member. The connector extends into the floating cavity, and the floating member is disposed on the connector and located in the floating cavity, abutting against the base. A pin is inserted into the end of the connector opposite to the floating member and forms an electrical connection with an external circuit. When the connector is subjected to the biasing force of the pin, the connector causes the floating member to undergo elastic deformation along the direction of the biasing force, so that the connector floats relative to the base in the floating cavity, and maintains electrical conductivity with the base through the floating member during the floating process.

[0007] The aforementioned floating connection structure creates a floating cavity within a base, with the connector extending into this cavity. The floating component, mounted on the connector and abutting the base within the floating cavity, ensures the connector is not rigidly fixed to the base but rather has a floating structural foundation within the cavity. When a pin is inserted into the connector at an angle, or when the pin applies a biasing force to the connector during insertion or vibration, the connector can cause the floating component to elastically deform along the direction of the biasing force. This results in a slight float relative to the base, absorbing pin position deviations, assembly tolerances, or lateral shifts during use. This reduces the direct concentration of biasing forces on the connector's insertion or fixing ends, lowering the risk of localized deformation, accelerated wear, or unstable contact pressure due to rigid stress. Simultaneously, the connector maintains electrical conductivity with the base via the floating component during floating, further forming a stable conductive path with external circuitry, thus balancing pin deviation compensation and electrical connection stability. Attached Figure Description

[0008] Figure 1 This is a perspective view of a floating connection structure in one embodiment of this application.

[0009] Figure 2 for Figure 1 An exploded three-dimensional view of the aforementioned floating connection structure.

[0010] Figure 3 for Figure 1 A cross-sectional view of the floating connection structure.

[0011] Figure 4 for Figure 3 Enlarged view of part A of the floating connection structure.

[0012] Figure 5 for Figure 1 A cross-sectional view of the middle section of the floating connection structure.

[0013] Figure 6 This is an exploded perspective view of the floating connection structure in another embodiment of this application.

[0014] Figure 7 for Figure 6 A bottom view of the connecting components of the floating connection structure.

[0015] Explanation of main component symbols 100. Floating connection structure; 10. Base; 11. Floating cavity; 12. First part; 13. Second part; 131. Limiting groove; 132. Protrusion; 133. Guide part; 134. Guide channel; 20. Connecting assembly; 21. Connector; 211. Support part; 212. Insertion part; 22. Floating part; 222. Elastic support leg; 23. Supporting part; 24. Reinforcing part; 30. Pin. Detailed Implementation

[0016] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0017] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0018] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0019] Please see Figures 1-7 This application provides a floating connection structure 100 for inserting a pin 30 and for establishing electrical continuity between the pin 30 and an external circuit. The floating connection structure 100 mainly includes a base 10 and a connecting component 20. The base 10 provides a mounting foundation and is electrically connected to an external circuit. The connecting component 20 is disposed on the base 10 and is used to insert and cooperate with the pin 30, and floats slightly relative to the base 10 when the pin 30 has a positional deviation or is inserted with an offset.

[0020] Specifically, the base 10 has a floating cavity 11, which is used to accommodate at least part of the structure of the connecting assembly 20 and provides space for the connecting assembly 20 to float slightly relative to the base 10. The base 10 can be electrically connected to the external circuit by abutment, welding, pressing, riveting or other conductive connection methods. By providing a floating cavity 11 in the base 10, the base 10 can provide basic support for the connecting assembly 20 while reserving necessary room for movement for the connecting assembly 20, avoiding the connecting assembly 20 being completely rigidly clamped.

[0021] The connecting assembly 20 includes a connector 21 and a floating member 22. The connector 21 extends partially into the floating cavity 11, and the end of the connector 21 facing away from the floating member 22 is used for insertion of the pin 30. The floating member 22 is disposed on the connector 21 and located within the floating cavity 11, abutting against the base 10. It should be noted that the floating member 22 being disposed on the connector 21 means that the floating member 22 and the connector 21 form a connection capable of transmitting force and electricity. This connection can be a connection, abutment, support, or integral formation, as long as the floating member 22 can undergo corresponding elastic deformation when the connector 21 is subjected to force and maintain the electrical conductivity between the connector 21 and the base 10 during the floating process of the connector 21.

[0022] When the pin 30 is inserted into the connector 21, the pin 30 and the connector 21 form a conductive contact. The connector 21 then forms a conductive contact with the base 10 via the floating member 22. The base 10 is then electrically connected to an external circuit, thereby forming a conductive path between the pin 30, the connector 21, the floating member 22, the base 10, and the external circuit. Since the floating member 22 can both provide elastic support for the connector 21 and participate in the conductive connection between the connector 21 and the base 10, the connector 21 can maintain conductive stability while having a floating margin.

[0023] When there is an assembly deviation between the pin 30 and the connector 21, or when the pin 30 applies a biasing force to the connector 21 during insertion due to factors such as tilting, vibration, or lateral pushing, the connector 21 is subjected to the biasing force of the pin 30, which causes the floating member 22 to undergo elastic deformation along the direction of the biasing force. At this time, the connector 21 can generate a slight floating relative to the base 10 within the floating cavity 11 to conform to the biased insertion position of the pin 30, rather than directly concentrating the biasing force on the insertion end or rigid fixed position of the connector 21.

[0024] With the above configuration, the floating cavity 11 provides offset space for the connector 21, and the floating element 22 forms an elastic support and conductive transition between the connector 21 and the base 10. On the one hand, the connector 21 can absorb the positional deviation of the pin 30, assembly tolerance, or offset load during use by means of the floating cavity 11 and the floating element 22, thereby reducing the insertion resistance and local stress concentration; on the other hand, the floating element 22 still abuts against the base 10 during the elastic deformation process, so that the connector 21 continues to maintain electrical conductivity with the base 10 through the floating element 22 during the floating process.

[0025] Therefore, the floating connection structure 100 of this embodiment can adaptively float the connector 21 relative to the base 10 even when the pin 30 is misaligned, has a positional deviation, or experiences vibration. This reduces localized stress concentration on the connector 21 and lowers the risk of wear, deformation, or unstable contact pressure caused by rigid bias. Simultaneously, the connector 21 maintains conductivity with the base 10 and external circuitry through the floating element 22 during the floating process, thus balancing deviation compensation capability and conductive connection stability.

[0026] In one specific embodiment, the base 10 includes a first part 12 and a second part 13 that overlap each other, forming a floating cavity 11 after the first part 12 and the second part 13 overlap. The first part 12 can serve as a limiting structure on one side of the connector 21, and the second part 13 can serve as a supporting structure for the floating member 22 and be electrically connected to an external circuit. By setting the base 10 to a structure in which the first part 12 and the second part 13 overlap each other, it is convenient to place at least a portion of the structure of the connector 20 on the second part 13 during the assembly process, and then have the first part 12 and the second part 13 overlap to form the floating cavity 11, thereby allowing the connector 21 to be confined within the floating cavity 11 and retaining space to float relative to the base 10.

[0027] Furthermore, the first part 12 and the second part 13 can be joined together by interference fit riveting. Specifically, when the first part 12 and the second part 13 are fitted together, there is an interference fit between their mating parts. During assembly, the first part 12 and the second part 13 are interlocked by pressing or clamping, causing elastic deformation or local plastic deformation of their mating parts, thereby forming a stable riveting fixation relationship. Thus, the first part 12 and the second part 13 can remain relatively fixed without relying on independent fasteners, and can maintain the spatial stability of the floating cavity 11 and the annular limiting groove 131. It should be noted that the interference fit riveting between the first part 12 and the second part 13 is used to fix the base 10 itself, and does not completely clamp the connector 21. The connector 21 can still float slightly within the floating cavity 11.

[0028] In other embodiments, the first part 12 and the second part 13 can also be fixed by means of riveting posts, riveting holes, snaps, welding or screwing, as long as the structure of the floating cavity 11 can be kept stable and the connector 21 can be allowed to float relative to the base 10 in the floating cavity 11.

[0029] Specifically, the second part 13 has an annular limiting groove 131, which communicates with the floating cavity 11. The floating member 22 is disposed in the annular limiting groove 131 and partially extends into the floating cavity 11. That is, the annular limiting groove 131 is used to accommodate part of the structure of the floating member 22 and to constrain the installation position of the floating member 22 on the second part 13; the part of the floating member 22 extending into the floating cavity 11 is used to abut against the connecting member 21, so that the floating member 22 can form elastic support and conductive contact between the second part 13 and the connecting member 21.

[0030] In the assembled state, the floating member 22 pushes the connecting member 21 along its thickness direction, causing the connecting member 21 to abut against the first part 12. At this time, the first part 12 limits the connecting member 21, and the second part 13 supports and positions the floating member 22 through the annular limiting groove 131. The floating member 22 is then located between the connecting member 21 and the second part 13. Through the above cooperation, the connecting member 21 will not move freely within the floating cavity 11, but will be held in a predetermined position by the elastic pushing action of the floating member 22, thereby facilitating the insertion of the pin 30 into the connecting member 21.

[0031] When the pin 30 is inserted into the connector 21 and a biasing force is applied to the connector 21, the connector 21 can overcome the elastic pushing effect of the floating member 22 and undergo a slight displacement or deflection relative to the first part 12 and the second part 13 within the floating cavity 11. At this time, the annular limiting groove 131 can limit the installation position of the floating member 22 on the second part 13, preventing the floating member 22 from moving as a whole due to the force on the connector 21; the floating member 22 continues to support the connector 21 through its own elastic deformation, and keeps the connector 21 electrically connected to the external circuit through the floating member 22 and the second part 13.

[0032] By placing the floating member 22 within the annular limiting groove 131 of the second part 13, and allowing the floating member 22 to partially extend into the floating cavity 11 and push the connector 21 against the first part 12, a relatively stable accommodating space can be formed by the first part 12 and the second part 13, giving the connector 21 a limited floating range. Furthermore, the floating member 22 forms an elastic conductive support between the connector 21 and the second part 13, allowing the connector 21 to float and compensate when subjected to the bias force of the pin 30, without affecting the conductive continuity between the connector 21 and the external circuit. Compared to directly and rigidly fixing the conductive connector to the base, this structure reduces the force concentration during bias insertion and improves contact stability during the floating compensation process.

[0033] In one specific embodiment, compared with the free state of the floating member 22, when the connecting member 21 abuts against the first part 12 under the pushing action of the floating member 22, the floating member 22 is in a first compression state along its thickness direction. The first compression ratio of the floating member 22 along its thickness direction is denoted as a, and satisfies 14%≤a≤16%. Here, the free state of the floating member 22 can be understood as the naturally unfolded state of the floating member 22 when it is not pressed by the connecting member 21 and the base 10; the first compression state can be understood as the state when the floating member 22 is inserted into the annular limiting groove 131, and is pressed by the connecting member 21 and the second part 13, and the connecting member 21 is pushed to abut against the first part 12.

[0034] By controlling the first compression ratio 'a' between 14% and 16%, the floating component 22 can have an appropriate pre-compression amount in the initial assembly state. On the one hand, the floating component 22 can provide a stable elastic pushing force to the connecting component 21, so that the connecting component 21 maintains a relatively stable position when it is not subjected to the biasing force of the pin 30, thus preventing the connecting component 21 from loosening and shaking in the floating cavity 11. On the other hand, the floating component 22 still retains a margin for further compression in this pre-compression state, so that when the connecting component 21 is subsequently subjected to the biasing force of the pin 30, it can continue to drive the floating component 22 to produce elastic deformation, thereby achieving floating compensation.

[0035] Furthermore, when the connector 21 is pressed and moves to abut against the second part 13, the floating member 22 is in a second compression state along its thickness direction. The second compression ratio of the floating member 22 along its thickness direction is denoted as b, and satisfies 22% ≤ b ≤ 24%. This second compression state can be understood as the state of the connector 21 when it moves towards the second part 13 to a predetermined limit position during the biased insertion of the pin 30 or during the pressure-driven floating process. By controlling the second compression ratio b to 22% to 24%, the floating member 22 can remain within a recoverable elastic compression range near the maximum floating stroke of the connector 21, avoiding permanent deformation or elastic attenuation of the floating member 22 due to excessive compression.

[0036] Specifically, the thickness of the floating member 22 in its free state can be 4.4mm to 4.6mm, and the depth of the annular limiting groove 131 can be 3.5mm to 3.6mm. The depth of the annular limiting groove 131 is less than the thickness of the floating member 22 in its free state, so that after the floating member 22 is inserted into the annular limiting groove 131, it can partially extend into the floating cavity 11 and form a pushing support for the connecting member 21. Thus, the floating member 22 can be stably limited by the annular limiting groove 131, and can also abut against the connecting member 21 through the part extending into the floating cavity 11, thereby forming an elastic conductive support between the connecting member 21 and the second part 13.

[0037] Through the aforementioned compression ratio and dimensional matching, the floating component 22 has an appropriate pre-compression amount during initial assembly, and also has a stroke margin for continued compression when the pin 30 is offset and inserted. This allows the connector 21 to complete controlled floating within the floating cavity 11 without problems such as insufficient initial support or excessive compression. Simultaneously, the floating component 22 maintains contact with the connector 21 and the second part 13 in both the first and second compression states, thereby ensuring that the connector 21 remains electrically connected to the base 10 via the floating component 22 before and after floating.

[0038] In one specific embodiment, the second part 13 includes a protrusion 132 disposed within the annular limiting groove 131. The protrusion 132 extends obliquely from one side wall of the opening of the annular limiting groove 131 along a first direction. This first direction can be understood as an oblique direction relative to the depth direction of the annular limiting groove 131, so that the protrusion 132 does not simply extend vertically into the annular limiting groove 131, but forms an oblique structure with shielding and guiding functions at the opening of the annular limiting groove 131.

[0039] Furthermore, the other sidewall of the annular limiting groove 131 is inclined along the first direction to form a guide portion 133, which is disposed opposite to the protrusion 132. Since both the protrusion 132 and the guide portion 133 are inclined along the first direction, a guide channel 134 can be formed between them. The guide channel 134 communicates with the annular limiting groove 131 and allows the floating member 22 to enter the annular limiting groove 131 during assembly. That is, when the floating member 22 is installed into the second part 13, it can first enter the annular limiting groove 131 through the guide channel 134, and then the annular limiting groove 131 accommodates and limits the floating member 22.

[0040] Specifically, the protrusion 132 is disposed at the opening of the annular limiting groove 131, which can partially block the side of the floating member 22 facing the floating cavity 11. In this way, after the floating member 22 is installed into the annular limiting groove 131, the protrusion 132 can restrict the floating member 22 from coming out of the annular limiting groove 131. Especially when the connecting member 21 is pressed and floats, and the floating member 22 undergoes elastic deformation, the protrusion 132 can constrain the local deflection of the floating member 22, thereby reducing the risk of the floating member 22 leaving the predetermined installation position.

[0041] The guide portion 133 and the protrusion 132 cooperate to form a guide channel 134, which is mainly used to reduce the assembly difficulty when the floating part 22 is installed into the annular limiting groove 131. Since the floating part 22 itself needs to have a certain elasticity and pre-compression, if the opening of the annular limiting groove 131 is completely right-angled or narrow, the floating part 22 is easily blocked when it is installed, resulting in increased assembly resistance or localized stress concentration. By setting the guide portion 133 and the protrusion 132 to form an inclined guide channel 134, the floating part 22 can gradually enter the annular limiting groove 131 along the inclined surface during the assembly process, making the assembly process smoother.

[0042] Through the above configuration, the protrusion 132 and the guide 133 do not simply change the shape of the annular limiting groove 131, but together form a structure at the opening of the annular limiting groove 131 that serves both as an assembly guide and an anti-detachment limiting element. On the one hand, the guide channel 134 facilitates the entry of the floating component 22 into the annular limiting groove 131, reducing scratching, squeezing, or local deformation of the floating component 22 during assembly; on the other hand, the protrusion 132 can hold the floating component 22 in place after it is installed, ensuring that the floating component 22 remains stably within the annular limiting groove 131 during the floating process of the connector 21, thereby guaranteeing the elastic support and conductive contact stability of the floating component 22 for the connector 21.

[0043] In one specific embodiment, the surface of the protrusion 132 facing the guide portion 133 can serve as the inclined surface of the protrusion 132, and the surface of the guide portion 133 facing the protrusion 132 can serve as the inclined surface of the guide portion 133. A first angle is formed between the inclined surface of the protrusion 132 and the sidewall of the annular limiting groove 131 where the protrusion 132 is located, the first angle being 140° to 160°. That is, the protrusion 132 does not extend directly into the annular limiting groove 131 vertically, but rather forms an inwardly inclined blocking structure at the opening of the annular limiting groove 131.

[0044] Specifically, the first included angle can preferably be 150°. When the first included angle is within the above range, the protrusion 132 can form an appropriate amount of obstruction at the opening of the annular limiting groove 131, so that the floating member 22 is not easy to come out along the opening direction of the annular limiting groove 131 after being installed in the annular limiting groove 131; at the same time, the inclined surface of the protrusion 132 will not cause excessive obstruction to the installation of the floating member 22, so that the floating member 22 can be gradually compressed along the inclined surface and enter the annular limiting groove 131 during the assembly process.

[0045] Furthermore, the inclined surface of the protrusion 132 is parallel to the inclined surface of the guide 133. By making them parallel, the floating member 22 experiences a more continuous force direction when entering the annular limiting groove 131 through the guide channel 134. This prevents it from getting stuck due to local narrowness of the channel or losing its guiding constraint due to local wideness. Thus, the guide channel 134 can both guide the floating member 22 during assembly and, in conjunction with the protrusion 132, retain the floating member 22 after assembly.

[0046] When the floating member 22 undergoes elastic deformation or partial deflection under pressure from the connecting member 21, the inclined surface of the protrusion 132 can also serve as a lateral support surface for the floating member 22 during deflection. Since the inclined surface of the protrusion 132 is parallel to the inclined surface of the guide 133, the transition surface that the floating member 22 contacts during insertion and subsequent pressure is relatively smooth, which can reduce the scraping and local compression between the floating member 22 and the groove of the annular limiting groove 131, thereby helping to maintain the elastic recovery ability and conductive contact stability of the floating member 22.

[0047] By combining the aforementioned angles and inclined surfaces, the protrusion 132 can simultaneously serve as an assembly guide, prevent detachment, and provide deflection support. If the first included angle is too small, the protrusion 132's tendency to block the floating component 22 into the annular limiting groove 131 is too strong, making it prone to significant resistance during assembly. If the first included angle is too large, the protrusion 132's anti-detachment holding effect on the floating component 22 is weakened. Therefore, limiting the first included angle to the range of 140° to 160° can better balance the ease of assembly of the floating component 22 with its limiting stability after installation.

[0048] In one specific embodiment, the protrusion 132 is disposed on the outer wall of the annular limiting groove 131. The outer wall referred to here can be understood as the side of the annular limiting groove 131 furthest from its center. By disposing the protrusion 132 on the outer wall of the annular limiting groove 131, the protrusion 132 is positioned on the side where the floating member 22 is more likely to expand outward or shift laterally when subjected to pressure, thereby facilitating the constraint of the deflection direction of the floating member 22.

[0049] Specifically, the floating element 22 is a ring-shaped multi-turn elastic conductive structure, comprising multiple elastic rings connected sequentially along its circumference. These multiple elastic rings form a ring structure, enabling the floating element 22 to form multi-point or continuous contact with the connector 21 and the second part 13 in the circumferential direction. Compared to a single-point elastic support structure, the ring-shaped multi-turn elastic conductive structure provides more balanced elastic support when the connector 21 is subjected to bias forces in different directions. It also increases the number of conductive contact points, which helps reduce the impact of local contact instability on overall conductivity.

[0050] Furthermore, each elastic ring is inclined relative to the thickness direction of the floating member 22. Because the elastic ring itself has an inclined posture, when the connecting member 21 is compressed and moves along the direction closer to the second part 13, the elastic ring can be compressed along the thickness direction of the floating member 22, and a certain deflection occurs during the compression process. In other words, the elastic ring is not simply flattened in the vertical direction, but can convert part of the pressure into elastic deflection deformation through its inclined structure, thereby providing a softer floating support for the connecting member 21.

[0051] Furthermore, each elastic ring is inclined relative to the thickness direction of the floating member 22. When the floating member 22 is in a free state or in its initial assembly state, a first deflection angle can be formed between the extension direction of the elastic ring and the thickness direction of the floating member 22. The first deflection angle can be 25° to 35°, preferably 30°. When the connecting member 21 is pressed and moves towards the second part 13, the elastic ring is compressed along the thickness direction of the floating member 22 and deflects towards the protrusion 132. At this time, a second deflection angle can be formed between the extension direction of the elastic ring and the thickness direction of the floating member 22. The second deflection angle can be 45° to 55°, preferably 50°. By making the elastic ring have the above-mentioned deflection angle changes before and after being compressed, the elastic ring can convert the pressure transmitted by the connecting member 21 into elastic compression and lateral deflection deformation, thereby ensuring the floating support while avoiding the elastic ring being crushed by simple axial compression.

[0052] When the elastic ring deflects to near the second deflection angle, at least a portion of the elastic ring can abut against the protrusion 132. The protrusion 132 restricts the continued deflection of the elastic ring, thereby reducing the risk of excessive deflection, disengagement from the annular limiting groove 131, or irreversible deformation of the elastic ring.

[0053] When the connector 21 is pressed and moves toward the second part 13, the elastic ring is compressed along the thickness direction of the floating member 22 and deflects toward the protrusion 132 until at least part of the elastic ring abuts against the protrusion 132. At this time, the protrusion 132 can provide lateral support and limit the deflection of the elastic ring, preventing the elastic ring from continuing to deflect excessively outward during the compression process. Through this abutment relationship, the floating member 22 can generate the necessary elastic deformation to absorb the biasing force of the pin 30, and can also be constrained by the protrusion 132 when the deflection reaches a certain degree, thereby maintaining it in the predetermined installation position within the annular limiting groove 131.

[0054] Through the above configuration, the floating member 22 forms an elastic conductive support between the connector 21 and the second part 13. When the connector 21 is subjected to the biasing force of the pin 30, the compression and deflection of the elastic ring can provide floating compensation space for the connector 21; the contact between the elastic ring and the protrusion 132 can limit the excessive deflection of the floating member 22, reducing the risk of the floating member 22 disengaging from the annular limiting groove 131 or undergoing irreversible deformation. At the same time, since the floating member 22 is an annular multi-ring elastic conductive structure, the connector 21 can still maintain conductive contact with the second part 13 through multiple elastic rings during the floating process, thereby improving the conductive stability during the floating compensation process.

[0055] In one specific embodiment, the connector 21 includes an integrally formed support portion 211 and a plug portion 212. The support portion 211 is located within the floating cavity 11 and is used to abut against the floating member 22; the plug portion 212 is located on the side of the support portion 211 opposite to the floating member 22 and is used for insertion of the pin 30. Since the support portion 211 and the plug portion 212 are integrally formed, the insertion force or biasing force of the pin 30 acting on the plug portion 212 can be directly transmitted to the support portion 211, and then from the support portion 211 to the floating member 22, causing the floating member 22 to produce a corresponding elastic deformation. This reduces the intermediate connecting links inside the connector 21 and improves the continuity of force and conductivity between the pin 30, the connector 21, and the floating member 22.

[0056] Specifically, the support portion 211 can be understood as the basic bearing portion of the connector 21 located within the floating cavity 11, and the insertion portion 212 can be understood as the portion of the connector 21 used to form an insertion contact with the pin 30. When the pin 30 is normally inserted into the insertion portion 212, the insertion portion 212 and the pin 30 form a conductive contact, and the support portion 211 maintains a conductive contact with the base 10 through the floating member 22; when the pin 30 is inserted into the insertion portion 212 with an offset, the insertion portion 212 is subjected to an offset force, which causes the support portion 211 to move or deflect slightly within the floating cavity 11, and the support portion 211 then compresses the floating member 22 to achieve floating compensation of the connector 21 relative to the base 10.

[0057] Furthermore, the connecting assembly 20 also includes a plurality of support members 23. The plurality of support members 23 are inserted through the support portion 211 along its thickness direction and are arranged circumferentially along the support portion 211. The opposite ends of each support member 23 protrude from opposite sides of the support portion 211. That is, the support member 23 penetrates or is embedded in the support portion 211 along its thickness direction, with one end of the support member 23 facing the first portion 12 and the other end facing the second portion 13. By making the opposite ends of the support member 23 protrude from opposite sides of the support portion 211, when the support portion 211 approaches the first portion 12 or the second portion 13, the end of the support member 23 can preferentially contact the first portion 12 or the second portion 13.

[0058] When the connector 21 is not subjected to a significant biasing force, the support portion 211 is held in a predetermined position by the pushing action of the floating member 22, and the multiple support members 23 are in their corresponding initial positions along with the support portion 211. When the pin 30 is biasedly inserted into the insertion portion 212 and causes the support portion 211 to tilt, press down, or deflect slightly within the floating cavity 11, the end of the support member 23 facing the first portion 12 or the second portion 13 can abut against the first portion 12 or the second portion 13, thereby limiting the continued movement or deflection of the support portion 211. Thus, the support member 23 is not used to restrict the normal floating of the connector 21, but rather to provide auxiliary support when the connector 21 deflects to a certain extent, preventing the support portion 211 from tilting excessively or compressing the floating member 22 excessively.

[0059] Multiple support members 23 are arranged circumferentially along the support portion 211, ensuring that the support portion 211 has a corresponding supporting foundation when subjected to biasing forces in different directions. For example, when the pin 30 is inserted biasedly, causing one side of the support portion 211 to approach the first part 12 or the second part 13, the end of the support member 23 on that side can first contact the first part 12 or the second part 13, thereby sharing the local force on the support portion 211. Through this circumferential distribution, the biasing load on the support portion 211 is less likely to be concentrated at a single location, which helps to reduce the local force concentration on the support portion 211 or the floating member 22.

[0060] Through the above arrangement, the support portion 211, the insertion portion 212, and the support member 23 together form the force transmission and attitude restriction structure of the connector 21. The insertion portion 212 is used to receive the insertion force of the pin 30, the support portion 211 is used to transmit this force to the floating member 22, and the support member 23, through its ends facing the first portion 12 and the second portion 13, forms auxiliary support and limitation when the support portion 211 deflects or presses down. This not only preserves the floating compensation capability of the connector 21 relative to the base 10, but also prevents the connector 21 from tilting excessively during offset insertion or vibration, thereby improving the contact stability and structural reliability of the pin 30 in the insertion state.

[0061] In one specific embodiment, the thickness of the support member 23 is 1.35 mm to 1.4 mm. The thickness of the support member 23 mentioned here can be understood as its dimension along the thickness direction of the support portion 211. Since the support member 23 passes through the support portion 211 along its thickness direction, and its opposite ends protrude from opposite sides of the support portion 211, the support member 23 can form contact with the first portion 12 or the second portion 13 through its ends when the support portion 211 approaches the first portion 12 or the second portion 13, thereby providing auxiliary support for the movement or deflection of the support portion 211.

[0062] Furthermore, the height of the floating cavity 11 is 1.45mm to 1.55mm. The height of the floating cavity 11 mentioned here can be understood as the spatial height between the first part 12 and the second part 13 for accommodating the support part 211, that is, the dimension of the floating cavity 11 along the thickness direction of the support part 211. The height of the floating cavity 11 is greater than the thickness of the support part 211, so that the support part 211 is not completely clamped by the first part 12 and the second part 13, but has the necessary slight floating space within the floating cavity 11. Therefore, when the connector 21 is subjected to the biasing force of the pin 30, it can adaptively float within the floating cavity 11, while the support part 23 is used to cooperate with the first part 12 or the second part 13 to limit the movement when the floating or deflection reaches a certain degree.

[0063] By limiting the thickness of the support member 23 to 1.35mm to 1.4mm and the height of the floating cavity 11 to 1.45mm to 1.55mm, a relatively stable support fit can be formed between the support member 23 and the first part 12 and the second part 13. On the one hand, the end of the support member 23 protrudes from the support part 211, allowing it to participate in bearing force earlier when the support part 211 deflects or is pressed down; on the other hand, the floating cavity 11 still retains sufficient height so that the support part 211 does not lose its floating ability due to the setting of the support member 23. Thus, the support member 23 can avoid excessive interference when the connector 21 is floating normally, and can provide timely auxiliary support when the connector 21 deflects to a certain extent.

[0064] Furthermore, the ends of the support member 23 facing the first part 12 and the second part 13 are coated with an aluminum chromium nitride coating. Since the ends of the support member 23 may come into contact with the first part 12 and the second part 13 during the floating or deflection of the connector 21, the aluminum chromium nitride coating reduces the frictional resistance between the ends of the support member 23 and the first part 12 and the second part 13, and improves the wear resistance of the ends of the support member 23. The coefficient of friction of the coating is 0.1 to 0.4, which prevents the support member 23 from easily getting stuck when in contact with the first part 12 or the second part 13, thereby avoiding the support member 23 affecting the slight floating of the connector 21 due to excessive friction.

[0065] When the pin 30 is inserted into the plug portion 212 with an offset, the connector 21 undergoes a slight displacement or deflection within the floating cavity 11, and the support member 23 moves synchronously with the support portion 211. If the end of the support member 23 facing the first portion 12 or the second portion 13 contacts the corresponding part, the aluminum chromium nitride coating can reduce the friction between them, allowing the support member 23 to both provide auxiliary limiting and support functions without significantly hindering the floating compensation action of the connector 21. At the same time, the coating can also reduce the wear between the end of the support member 23 and the first portion 12 or the second portion 13, reducing the accumulation of wear under long-term insertion and removal or vibration conditions.

[0066] Through the aforementioned dimensional and coating combinations, the support member 23 can promptly form auxiliary support with the first part 12 or the second part 13 when the connector 21 deflects, without compromising the slight floating capability of the connector 21 within the floating cavity 11. This structure can further improve the attitude stability of the connector 21 under biasing forces while ensuring floating compensation, and reduce frictional wear between the support member 23 and the base 10.

[0067] In one specific embodiment, the connecting assembly 20 further includes a reinforcing member 24, which is sleeved on the outer peripheral surface of the insertion portion 212. The insertion portion 212 is used to insert with the pin 30. In the actual structure, the insertion portion 212 may include an end spring piece or elastic contact portion for clamping the pin 30. The reinforcing member 24 is disposed on the outside of the end spring piece or elastic contact portion to provide external support for the insertion portion 212.

[0068] Specifically, the reinforcing member 24 can be a stainless steel spring, a stainless steel sleeve, or other metal reinforcing structure with high elastic strength and support strength. After the reinforcing member 24 is sleeved on the outer peripheral surface of the insertion part 212, it can abut or fit against the outer surface of the insertion part 212, so that the insertion part 212 can maintain the necessary elastic clamping capacity when the pin 30 is inserted, and is not prone to excessive outward expansion or excessive displacement due to the skewed insertion of the pin 30.

[0069] When the pin 30 is inserted into the connector 212 with an offset, the pin 30 applies a force to the connector 212 that deviates from the predetermined insertion direction. The end spring piece or elastic contact portion in the connector 212 tends to open outward or shift to one side. At this time, the reinforcement 24 supports the connector 212 from the outside, limiting the offset of the connector 212 to within the allowable range, thereby reducing the risk that the connector 212 will exceed the elastic deformation range due to localized force concentration.

[0070] By providing the reinforcing member 24, the yield strength of the insertion part 212 can be improved. That is, when the pin 30 is inserted in an oblique state, the reinforcing member 24 can share part of the bias load borne by the insertion part 212, reducing the situation where the end bullet piece or elastic contact part bears a large external tension alone, thereby reducing the risk of permanent deformation, decreased clamping force or unstable contact pressure of the insertion part 212.

[0071] Furthermore, the reinforcement 24's support for the outer side of the insertion portion 212 also helps to more stably transmit the biasing force generated by the pin 30 to the support portion 211. After the insertion portion 212 is constrained by the reinforcement 24, its deformation is limited, and the force generated by the pin 30 can be transmitted through the insertion portion 212 to the support portion 211, and then from the support portion 211 to the floating member 22 or the support member 23, and finally borne by the base 10. Therefore, the reinforcement 24 is not simply used to enhance the strength of the insertion portion 212 itself, but also to improve the force transmission relationship between the insertion portion 212, the support portion 211, and the base 10.

[0072] With the above settings, the floating connection structure 100 can further limit the excessive deformation of the plug part 212 during offset plugging while maintaining the floating compensation of the connector 21. This allows the pin 30 and the plug part 212 to maintain a relatively stable contact pressure and enables the offset force to be transmitted to the base 10 more smoothly, thereby improving plugging stability and long-term reliability.

[0073] In another specific embodiment, the floating member 22 can be integrally formed with the connecting member 21. That is, the floating member 22 does not necessarily have to be assembled as a separate part between the connecting member 21 and the base 10. It can also be formed by bending, extending or integrally molding a local structure of the connecting member 21, so that the connecting member 21 itself has elastic support and floating compensation capabilities.

[0074] Specifically, the floating member 22 includes a plurality of spaced-apart elastic legs 222. One end of each elastic leg 222 is connected to the connector 21, and the other end is bent toward the base 10 and abuts against the base 10. The elastic legs 222 can be spaced apart along the circumference or outer periphery of the connector 21, so that the connector 21 can be supported on the base 10 by the plurality of elastic legs 222. Since the elastic legs 222 are integrally formed with the connector 21, the current path formed between the pin 30 and the connector 21 can be directly transmitted to the base 10 through the connector 21 and the elastic legs 222, thereby achieving elastic support while maintaining electrical conductivity.

[0075] When not subjected to the biasing force of the pin 30, the multiple elastic legs 222 abut against the base 10 and provide elastic support for the connector 21, keeping the connector 21 in a relatively stable initial position. When the pin 30 is inserted into the connector 21, the connector 21 can maintain conductive contact with the base 10 through the elastic legs 222, thereby forming a conductive path between the pin 30, the connector 21, the elastic legs 222, and the base 10.

[0076] When the connector 21 is subjected to a biasing force from the pin 30, at least one elastic leg 222 located on the biasing side undergoes elastic deformation. For example, when the biasing force causes the connector 21 to tilt or press down to one side, the elastic leg 222 closer to that biasing side will experience greater compression, bending, or deflection relative to the other elastic legs 222, allowing the connector 21 to float slightly relative to the base 10. Through this non-uniform elastic deformation, the connector 21 can conform to the biased insertion position of the pin 30, reducing the rigid pressure between the pin 30 and the connector 21.

[0077] Furthermore, the multiple elastic legs 222 are spaced apart, so that when the connector 21 is subjected to force in different bias directions, the elastic legs 222 at the corresponding positions can undergo elastic deformation to provide directional floating compensation. At the same time, the elastic legs 222 on the side that are not significantly compressed can still maintain support and conductive contact for the connector 21, thereby preventing the connector 21 from becoming unstable or having intermittent conductivity during floating.

[0078] By integrating the floating component 22 with the connector 21, the assembly steps for independent floating components can be reduced, thus decreasing the number of parts and assembly errors. By providing multiple elastic supports 222 that bend towards and abut against the base 10, the connector 21 can achieve floating compensation when subjected to the biasing force of the pin 30, maintaining electrical conductivity with the base 10 during the floating process. This implementation is suitable for connection scenarios requiring simplified structures, shorter conductive paths, or fewer components.

[0079] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A floating connection structure, characterized in that, include: The base has a floating cavity and is electrically connected to an external circuit. A connecting assembly includes a connector and a floating member. The connector extends into the floating cavity, and the floating member is disposed on the connector and located in the floating cavity, abutting against the base. A pin is inserted into the end of the connector opposite to the floating member and forms an electrical connection with an external circuit. When the connector is subjected to the biasing force of the pin, the connector causes the floating member to undergo elastic deformation along the direction of the biasing force, so that the connector floats relative to the base in the floating cavity, and maintains electrical conductivity with the base through the floating member during the floating process.

2. The floating connection structure according to claim 1, characterized in that, The base includes a first part and a second part that overlap each other, the second part being electrically connected to the external circuit, and the first part and the second part forming the floating cavity. The second part has an annular limiting groove that connects to the floating cavity. The floating member is disposed in the limiting groove and partially extends into the floating cavity. The floating member pushes the connecting member to abut against the first part along its thickness direction.

3. The floating connection structure according to claim 2, characterized in that, Compared to the free state of the floating component, when the connecting component abuts against the first part, the first compression ratio of the floating component along its thickness direction is denoted as a, and when the connecting component is compressed and moves to abut against the second part, the second compression ratio of the floating component along its thickness direction is denoted as b, respectively satisfying 14%≤a≤16% and 22%≤b≤24%; The thickness of the floating component in its free state is 4.4mm to 4.6mm, and the depth of the limiting groove is 3.5mm to 3.6mm.

4. The floating connection structure according to claim 2, characterized in that, The second part includes a protrusion disposed in the limiting groove, the protrusion extending obliquely from one side wall of the limiting groove opening along a first direction; The other side wall of the limiting groove is inclined along the first direction to form a guide portion, and a guide channel is formed between the guide portion and the protrusion to communicate with the limiting groove.

5. The floating connection structure according to claim 4, characterized in that, The surface of the protrusion facing the guide portion forms a first included angle with the side wall of the limiting groove where the protrusion is located, and the first included angle is 140° to 160°. The inclined surface of the protrusion is parallel to the inclined surface of the guide.

6. The floating connection structure according to claim 4, characterized in that, The protrusion is provided on the outer wall of the limiting groove. The floating member is an annular multi-ring elastic conductive structure, including multiple elastic rings connected in sequence along its circumference. Each elastic ring is inclined relative to the thickness direction of the floating member. When the connector is pressed and moves toward the second part, the elastic ring is compressed along the thickness direction of the floating member and deflected toward the protrusion to abut against the protrusion.

7. The floating connection structure according to claim 2, characterized in that, The connector includes an integrally formed support portion and a plug portion, wherein the plug portion is located on the side of the support portion opposite to the floating component and is plugged into the pin. The connecting assembly further includes support members, a plurality of support members passing through the support portion along the thickness direction of the support portion and arranged circumferentially along the support portion, with each support member having its opposite ends protruding from opposite sides of the support portion.

8. The floating connection structure according to claim 7, characterized in that, The thickness of the support member is 1.35mm to 1.4mm, and the height of the floating cavity is 1.45mm to 1.55mm; The ends of the support members facing the first part and the second part are respectively coated with aluminum chromium nitride coating, and the coefficient of friction of the coating is 0.2 to 0.

4.

9. The floating connection structure according to claim 7, characterized in that, The connecting assembly further includes a reinforcing member, which is sleeved on the outer peripheral surface of the plug portion. When the pin is inserted into the plug portion with an offset, the reinforcing member supports the plug portion to limit the offset of the plug portion.

10. The floating connection structure according to claim 1, characterized in that, The floating component is integrally formed with the connecting component. The floating component includes a plurality of spaced elastic legs. One end of each elastic leg is connected to the connecting component, and the other end is bent toward the base and abuts against the base. When the connecting component is subjected to the biasing force of the pin, at least one of the elastic legs located on the biasing side undergoes elastic deformation, so that the connecting component floats relative to the base.

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