Floating connector and connector assembly

Abstract

The utility model provides a kind of floating connector, including first outer shell, first inner shell and first terminal, first outer shell includes a pair of first plate body being set along transverse direction and a pair of second plate body being set along longitudinal direction, first plate body and second plate body are formed around cavity in common;First inner shell is movably arranged in the chamber, which includes inner shell body and connecting arm arranged on the inner shell body, the inner shell body is provided with plug-in cavity and base station;First terminal includes first soldering part electrically connected with circuit board and first contact part abutting on base station;First outer shell and first inner shell are respectively provided with first outer base surface and first inner base surface at one end towards the opposite connector, and the first inner base surface does not protrude from the first outer base surface in the height direction. When subjected to external force vibration or impact, the floating connector can still ensure normal operation. The utility model also provides a connector assembly using the floating connector.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connector technology, specifically relating to a floating connector and connector assembly. Background Technology

[0002] In recent years, with the evolution of digitalization, informatization and intelligentization, the amount of data transmitted between circuit boards has grown exponentially, which has also led to a continuous increase in the requirements for data connection between circuit boards.

[0003] Board-to-board connectors are widely used in fields with large data transmission volumes, such as intelligent robots and automotive systems, due to their advantages of simplifying circuit board connections, saving space, and high integration.

[0004] However, with the continuous expansion of applications, the operating environments that board-to-board connectors need to cope with are becoming increasingly complex and varied. Especially during testing, pre-installation, or operation, connectors may be subjected to vibration or impact from foreign objects, such as tools or accessories falling during maintenance, or sand particles hitting the connector during operation. Existing board-to-board connectors are prone to deformation under impact, leading to transmission interruptions and other problems. This limits the use of board-to-board connectors under the above-mentioned operating conditions, and may even cause data transmission failures and data loss, seriously affecting the stability and reliability of inter-board data transmission. Utility Model Content

[0005] To address the shortcomings of the prior art, this invention provides a floating connector. The first inner shell and the first terminal are protected by the first outer shell, effectively reducing damage to the first inner shell and the first terminal when subjected to external vibration or impact, ensuring normal operation of the connector under various working conditions. Furthermore, connector assemblies employing this floating connector maintain electrical connection between the first and second terminals even during motion, ensuring the stability and effectiveness of high-speed data transmission between boards and reducing the risk of disconnection.

[0006] The technical effect to be achieved by this utility model is realized through the following technical solution: In a first aspect, this utility model provides a floating connector, one end of which is fixed to a circuit board, and the other end is movably connected to a mating connector. The floating connector includes: The first outer shell includes a pair of first plates arranged in a transverse direction and a pair of second plates arranged in a longitudinal direction, the first plates and the second plates together forming a cavity; A first inner housing, movably disposed within the cavity, includes an inner housing body and a connecting arm disposed on the inner housing body. The inner housing body is provided with a insertion cavity and a base. The first terminal includes a first soldering part and a first contact part, wherein the first soldering part is electrically connected to the circuit board and the first contact part abuts against the base. The first outer shell and the first inner shell are respectively provided with a first outer base surface and a first inner base surface at the end facing the mating connector, and the first inner base surface does not protrude from the first outer base surface in the height direction.

[0007] In some implementations, the base has a second inner base surface, which is lower than the first inner base surface in the height direction.

[0008] In some implementations, the connecting arm includes a first connecting block and a second connecting block. The first connecting block extends from the inner housing body toward the circuit board in the height direction, and the second connecting block extends laterally outward from the first connecting block. The second plate body is provided with a slot, and the second connecting block is disposed in the slot, and the second connecting block does not protrude from the slot in the lateral direction.

[0009] In some implementations, the first terminal further includes a first bend and a second bend, the opening of the first bend facing the circuit board, the opening of the second bend facing the mating connector, and both the first bend and the second bend are located below the inner housing body.

[0010] In some implementations, the first plate is provided with a protrusion that protrudes longitudinally toward the cavity, and the protrusion is positioned and connected to the first bent portion and the inner shell body.

[0011] In some implementations, a first fixing piece is also included, which is inserted in pairs into the first plate and close to the second plate, and the first fixing piece is soldered to the circuit board.

[0012] Secondly, this utility model provides a connector assembly, including a mating connector and the aforementioned floating connector; The mating connector is fixed on the mating circuit board. The mating connector includes a second housing and a second terminal. The second housing is provided with a mating chamber and a plug-in end. The plug-in end is located at the end of the second housing away from the mating circuit board. The second terminal includes a second welding part and a second contact part. The second welding part is electrically connected to the mating circuit board, and the second contact part is fixedly connected to the inner sidewall of the second housing. The plug-in end is inserted into the plug-in cavity, the base is inserted into the mating chamber, and the second contact portion is electrically connected to the first contact portion.

[0013] In some implementations, the second terminal further includes a second main body portion, the second welding portion and the second contact portion are disposed at both ends of the second main body portion, the terminal thickness at the position of the second main body portion is a, and the terminal thickness at the position of the second contact portion is b, then a and b satisfy the relationship: a > b; at this time, the first contact portion protrudes towards the insertion cavity.

[0014] In some implementations, the first terminal further includes a first main body portion, the terminal thickness at the location of the first main body portion is c, and the terminal thickness at the location of the first contact portion is d, then c and d satisfy the relationship: c > d; in this case, the second contact portion protrudes toward the mating chamber.

[0015] In some implementations, the second main body is provided with a bending structure at the connection between the second welding part and the second contact part; the second welding part abuts against the inner wall of the insertion cavity at one end near the bending structure, and the end of the second contact part is engaged with the inner wall of the insertion cavity facing the insertion end.

[0016] In some implementations, the mating connector includes a second fixing piece, which is inserted into the second housing in pairs, and the second fixing piece is soldered to the mating circuit board.

[0017] In summary, this utility model has at least the following advantages: 1. The floating connector provided by this utility model has a first inner shell disposed in the cavity and the first inner base surface does not protrude from the first outer base surface. When subjected to external vibration or collision, the first inner shell and the first terminal are both protected by the first outer shell, which effectively reduces the damage to the first inner shell and the first terminal and ensures that the connector can work normally.

[0018] 2. The connector assembly provided by this utility model includes a floating connector and a mating connector that are floatingly plugged together. Even under conditions such as motion, the first terminal and the second terminal can maintain electrical connection, thereby ensuring the stability and effectiveness of high-speed data transmission between boards and reducing the risk of disconnection caused by harsh environments and accidents.

[0019] 3. The connector assembly provided by this utility model effectively improves the performance of high-speed transmission and meets the higher data transmission requirements between circuit boards by making the first contact part or the second contact part thinner and thicker. Attached Figure Description

[0020] Figure 1 This is an axonometric view of the floating connector of Example 1.

[0021] Figure 2 for Figure 1 AA section view in the image.

[0022] Figure 3 for Figure 1 BB section view in the middle.

[0023] Figure 4 for Figure 2 A magnified view of point C in the image.

[0024] Figure 5 This is an exploded view of the assembly of the floating connector in Example 1.

[0025] Figure 6 This is an axonometric view of the connector assembly in the plugged-in state in Example 2.

[0026] Figure 7 for Figure 6 DD section view in the image.

[0027] Figure 8 This is a lateral front view of the second terminal in Example 2.

[0028] Figure 9 When the first contact portion is thinned Figure 6 DD sectional view.

[0029] Figure 10 This is a transverse front view of the first terminal when the first contact portion is thinned.

[0030] Figure 11 for Figure 6 EE section view in the image.

[0031] Figure 12 This is an exploded view of the mating connector assembly in Example 3.

[0032] Marked in the image: 100. Floating connector; 200. Connector assembly; 300. Mating connector; 400. Circuit board; 500. Mating circuit board; 1. First outer shell; 11. First plate; 111. Protrusion; 112. Fixing slot; 12. Second plate; 121. Slot; 13. Chamber; 14. First outer base surface; 2. First inner shell; 21. Inner shell body; 211. Insertion cavity; 212. Base; 2121. Second inner base surface; 22. Connecting arm; 221. First connecting block; 222. Second connecting block; 23. First inner base surface; 3. First terminal; 30. First main body; 31. First welding part; 32. First contact part; 33. First bending part; 34. Second bending part; 4. First fixing plate; 5. Second housing; 51. Matching chamber; 52. Insertion end; 6. Second terminal; 61. Second welding part; 62. Second contact part; 63. Second main body part; 7. Second fixing plate; X represents the horizontal direction; Y represents the vertical direction; and Z represents the vertical direction. Detailed Implementation

[0033] To facilitate understanding of the present invention, a more comprehensive description will be given below in conjunction with the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0034] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0037] For ease of understanding, it should be noted that the X-axis in the graph represents the horizontal direction, the Y-axis represents the vertical direction, and the Z-axis represents the vertical direction.

[0038] Example 1: This embodiment provides a floating connector 100, one end of which is fixed to a circuit board 400, and the other end is movably connected to a corresponding mating connector.

[0039] Please see Figures 1-5The floating connector 100 of this embodiment includes a first outer shell 1, a first inner shell 2, and a first terminal 3. Specifically, the first outer shell 1 includes a pair of first plates 11 arranged in the transverse direction X and a pair of second plates 12 arranged in the longitudinal direction Y. The first plates 11 and the second plates 12 together form a cavity 13. One end of the first outer shell 1 is fixed to the circuit board 400 through the first plates 11. The first inner shell 2 is movably disposed in the cavity 13. The first inner shell 2 includes an inner shell body 21 and a connecting arm 22 disposed on the inner shell body 21. The inner shell body 21 is provided with a insertion cavity 211 and a base 212. The first terminal 3 includes a first soldering part 31 and a first contact part 32. The first soldering part 31 is electrically connected to the circuit board 400, and the first contact part 32 abuts against the base 212.

[0040] Furthermore, the first outer shell 1 and the first inner shell 2 are respectively provided with a first outer base surface 14 and a first inner base surface 23 at the end facing the mating connector. The first inner base surface 23 does not protrude from the first outer base surface 14 in the height direction Z.

[0041] The floating connector 100 and the mating connector use a movable connection to accommodate greater assembly errors. Simultaneously, during movement, a certain amount of offset is allowed between the corresponding circuit boards of the two connectors, ensuring stable data transmission during inter-board transfer. The first inner housing 2 abuts against the first terminal 3, thus elastically and movably positioned within the chamber 13 to achieve the floating effect.

[0042] As the main part that connects to the mating connector, the first inner housing 2 is enclosed within the chamber 13 by the first outer housing 1, and the first inner base surface 23 does not protrude from the first outer base surface 14. When the connector is subjected to external vibration, impact, or collision, the force is primarily applied to the first outer housing 1. The first inner housing 2 and the first terminal 3, located within the chamber 13, are protected by the first outer housing 1, effectively reducing the risk of damage to the first inner housing 2 and the first terminal 3. Even if the first outer housing 1 is damaged during use, it will not affect the normal operation of the floating connector 100 and the mating connector.

[0043] Furthermore, since the first inner base surface 23 does not protrude from the first outer base surface 14, a dust cover or other protective accessories can be placed on the end that is plugged into the mating connector, thereby effectively protecting the plugging cavity 211 before plugging and protecting the surface of the first contact part 32 from contamination.

[0044] The base 212 serves as a guiding structure during insertion with the mating connector and also provides support for the first contact portion 32; therefore, protecting the base 212 is particularly important. In some embodiments, the base 212 has a second inner base surface 2121, which is lower than the first inner base surface 23 in the height direction Z. While the second inner base surface 2121 is lower than both the first inner base surface 23 and the first outer base surface 14, the base 212 is layered and protected within the insertion cavity 211, reducing the possibility of damage or deformation to the base 212 due to external forces, thus affecting the insertion effect.

[0045] like Figure 3 As shown, the first inner housing 2 is movably disposed in the chamber 13 via a connecting arm 22 and a second plate 12. Specifically, the connecting arm 22 includes a first connecting block 221 and a second connecting block 222. The first connecting block 221 extends from the inner housing body 21 toward the circuit board 400 in the height direction Z, and the second connecting block 222 extends outward from the first connecting block 221 in the transverse direction X. The second plate 12 is provided with a slot 121, and the second connecting block 222 is disposed in the slot 121, and the second connecting block 222 does not protrude from the slot 121 in the transverse direction X.

[0046] In this embodiment, the connecting arm 22 is disposed on the side of the inner housing body 21 facing the circuit board 400, making the first inner housing 2 have a "U"-shaped structure. The slot 121 is disposed on the side of the second plate 12 facing the circuit board 400. The second connecting block 222 is confined in the slot 121, and with the cooperation of the first terminal 3, the first inner housing 2 floats and is confined within the cavity 13. The mounting space formed by the inner housing body 21, the first connecting block 221, and the second connecting block 222 provides a certain accommodating area for the first terminal 3, thereby further reducing the longitudinal Y dimension of the floating connector 100. Since the second connecting block 222 does not protrude from the slot 121 in the transverse X direction, it avoids external components from affecting the floating state of the first inner housing 2, reducing installation interference.

[0047] In other embodiments, please refer to... Figures 1-5The first terminal 3 also includes a first bent portion 33 and a second bent portion 34. The opening of the first bent portion 33 faces the circuit board 400, and the opening of the second bent portion 34 faces the mating connector. Both the first bent portion 33 and the second bent portion 34 are located below the inner housing body 21. The first bent portion 33 and the second bent portion 34 constitute the elastic structure of the first terminal 3, making the first terminal 3 have an overall "N"-shaped or "h"-shaped structure. Under the action of the paired first terminals 3, the first inner housing 2 can freely offset in the longitudinal Y and height Z directions to obtain a better floating effect. Due to the above bending structure, the first terminal 3 has a large floating range, such as ±1.00mm, thereby absorbing the tolerances generated during assembly. At the same time, before insertion, the first inner housing 2 does not abut against the first outer housing 1 or the circuit board 400, thereby providing multi-angle gaps for subsequent insertion.

[0048] Furthermore, the first plate 11 is provided with a protrusion 111, which protrudes towards the cavity 13 in the longitudinal Y direction and limits the connection between the first bending portion 33 and the inner shell body 21. Both first plates 11 in this embodiment are provided with protrusions 111. When the mating connector is inserted into or removed from the first inner shell 2, the first inner shell 2 will be subjected to force and move. If only the first bending portion 33 and the second bending portion 34 of the first terminal 3 provide the reverse force, under the condition of large insertion and removal force, the first bending portion 33 and the second bending portion 34 are prone to exceed the elastic deformation of the material, damaging the first terminal 3. If there are two or more forces in different directions, it may even cause a short circuit problem in the adjacent first terminals 3 in the cavity 13. After setting the protrusion 111, the downward displacement of the first inner shell 2 and the upward deformation of the first terminal 3 are limited to the maximum extent, thereby avoiding the damage problem caused by excessive deformation of the first terminal 3.

[0049] In addition, in this embodiment, the floating connector 100 also includes a first fixing piece 4. The first fixing pieces 4 are inserted in pairs into the first plate 11 and close to the second plate 12. The first fixing pieces 4 are soldered to the circuit board 400. Specifically, the first fixing pieces 4 are usually made of bent metal sheets, formed by stamping and bending, inserted into the first plate 11 and soldered to the circuit board 400, ensuring that the first outer shell 1 is firmly fixed to the circuit board 400. The placement close to the second plate 12 allows the first fixing pieces 4 to be individually fixed at each of the four corners of the first outer shell 1, preventing the first outer shell 1 from detaching from the circuit board 400 due to the desoldering of a single first fixing piece 4.

[0050] In a further embodiment, the first plate 11 has a fixing slot 112 on its side near the second plate 12. The first fixing piece 4 is inserted into the fixing slot 112 from the lateral direction X, thereby fixing the first fixing piece 4 to the first plate 11. Since the first fixing piece 4 is fixed on both sides of the first plate 11, the force-bearing capacity of the first outer shell 1 in the lateral direction X is improved. Compared with the solution of inserting the first plate 11 from the height direction Z, the fixing slot 112 occupies less space in the first outer shell 1, which is more suitable for connection environments with more terminals or more limited space.

[0051] In summary, the floating connector provided in this embodiment has a first inner shell disposed in the cavity and the first inner base surface does not protrude from the first outer base surface. When the connector is subjected to external vibration, impact or collision, the first inner shell and the first terminal are protected by the first outer shell, which effectively reduces the damage to the first inner shell and the first terminal and ensures that the connector can work normally.

[0052] Example 2: Please Figures 1-5 Based on the above Figures 6-11 This embodiment provides a connector assembly 200 for high-speed data transmission between two circuit boards. It includes a mating connector 300 and a floating connector 100 as described in Embodiment 1.

[0053] Specifically, the mating connector 300 is fixed to the mating circuit board 500. The mating connector 300 includes a second housing 5 and a second terminal 6. The second housing 5 has a mating chamber 51 and a plug-in end 52, which is located at the end of the second housing 5 away from the mating circuit board 500. The second terminal 6 includes a second solder part 61 and a second contact part 62. The second solder part 61 is electrically connected to the mating circuit board 500, and the second contact part 62 is fixedly connected to the inner wall of the second housing 5. When the floating connector 100 is plugged into the mating connector 300, the plug-in end 52 is inserted into the plug-in cavity 211, the base 212 is inserted into the mating chamber 51, and the second contact part 62 is electrically connected to the first contact part 32.

[0054] After insertion, since the first inner housing 2 is movably disposed in the chamber 13, a certain installation error between the circuit board 400 and the mating circuit board 500 can be tolerated, thereby reducing the processing tolerance requirements of the connector assembly 200 and the circuit board 400 and mating circuit board 500, and thus reducing production costs.

[0055] In some embodiments, when the floating connector 100 and the mating connector 300 are plugged into each other, a shallow or deep insertion of 0.60 mm is allowed. For example, when the mating height of the connector assembly 200 is designed to be 23.0 mm, its floating mating range is between 22.40 and 23.60 mm.

[0056] Secondly, in some exposed environments, such as during connection and debugging, external components or tools may accidentally collide with the connector assembly 200. For example, due to design requirements, the circuit board 400 and mating circuit board 500 must operate in the open, and external sand or gravel may strike the connector assembly 200. In this case, under the protection of the first outer shell 1, the first terminal 3 and the second terminal 6, which are in electrical connection, can still be stably connected within the first inner shell 2. If the mating connector 300 is impacted, because the first inner shell 2 is floating within the chamber 13, it can absorb the local displacement from the mating connector 300, and the first terminal 3 and the second terminal 6 can still maintain contact without being affected.

[0057] Furthermore, in devices where the circuit board 400 and the mating circuit board 500 are in sudden motion, such as robots, robotic arms, and vehicles, relative movement may occur between them. The floating first inner housing 2 ensures a stable and effective electrical connection between the first terminal 3 and the second terminal 6. Maintaining the connection between the first terminal 3 and the second terminal 6 is a fundamental requirement for ensuring data transmission between boards, especially crucial for high-speed data transmission. This embodiment provides a connector assembly 200 that guarantees the stability and effectiveness of high-speed data transmission, reducing the risk of unexpected disconnections in harsh environments.

[0058] In this embodiment, as Figures 7-8 As shown, the second terminal 6 also includes a second main body 63, a second welding portion 61, and a second contact portion 62 disposed at both ends of the second main body 63. The terminal thickness at the position of the second main body 63 is 'a', and the terminal thickness at the position of the second contact portion 62 is 'b'. a and b satisfy the relationship: a > b. The second contact portion 62 is thinner than the second main body 63, which is beneficial for increasing the data transmission capacity and is more suitable for high-speed data transmission requirements. In this case, to ensure a stable connection between the first contact portion 32 and the second contact portion 62, the first contact portion 32 protrudes towards the insertion cavity 211. The protruding structure of the first contact portion 32 can be formed by bending, so that the first contact portion 32 and the second contact portion 62 undergo elastic deformation when they abut, ensuring that they maintain the abutment state.

[0059] Similarly, such as Figures 9-10 As shown. In some embodiments, the first terminal 3 further includes a first main body portion 30, the terminal thickness at the position of the first main body portion 30 is c, and the terminal thickness at the position of the first contact portion 32 is d, then c and d satisfy the relationship: c > d. The purpose of making the first contact portion 32 thin is the same as the purpose of making the second contact portion 62 thin, as described above, and will not be repeated here. At this time, the second contact portion 62 needs to protrude towards the mating chamber 51 to ensure that the contact state between the first contact portion 32 and the second contact portion 62 is stable and effective.

[0060] During production, the second contact portion 62 or the first contact portion 32 can be thinned by partial stamping, which reduces production difficulty, improves the flatness of the thinned area, and makes the contact between the first contact portion 32 and the second contact portion 62 more reliable and stable.

[0061] Please continue reading. Figures 6-8 In this embodiment, the second main body 63 is provided with bending structures at the connection points with the second welding part 61 and the second contact part 62, respectively. These two bending structures ensure that the local elastic deformations generated by the second welding part 61, the second contact part 62, and the second main body 63 do not interfere with each other, while also improving the overall elastic deformation capability of the second terminal 6. The second welding part 61 abuts against the inner wall of the insertion cavity 211 at the end near the bending structure, and the end of the second contact part 62 is engaged with the inner wall of the insertion cavity 211 facing the insertion end 52. Through this method, the installation and positioning of the second terminal 6 and the second housing 5 in the longitudinal Y direction and the height Z direction can be better achieved, ensuring that the contact area between the first contact part 32 and the second contact part 62 reaches the maximum range designed in the meantime.

[0062] In some embodiments, such as Figure 11 As shown, in the horizontal direction X, the width of the first terminal 3 is e, and the gap between two adjacent first terminals 3 is f. e and f satisfy the relationship: e > f. The spacing between the first terminals 3 is less than the thickness of the first terminal 3, effectively increasing the transmission density of the first terminal 3 and the second terminal 6, thereby improving the transmission capability of the connector assembly 200. However, during assembly, the gap between terminals should be avoided as much as possible to prevent interference from microcurrent signals between adjacent terminals. In the first and second terminals, the gap between terminals is less than the width of the terminals, ensuring that the connector product meets the high-speed transmission requirements of PCIe Gen4.0 16Gbps.

[0063] In summary, the connector assembly provided in this embodiment includes a floating connector and a mating connector that are floating and plugged together. Even under conditions such as motion, the first terminal and the second terminal can maintain electrical connection, thereby ensuring the stability and effectiveness of high-speed data transmission between boards and reducing the risk of disconnection caused by harsh environments and accidents.

[0064] Furthermore, the connector assembly provided in this embodiment effectively improves high-speed transmission performance and meets higher data transmission requirements between circuit boards by making the first contact portion or the second contact portion thinner than the thicker portion.

[0065] Example 3: Please Figures 1-11 Based on this, please refer to Figure 12This embodiment provides a connector assembly 200, which differs from the connector assembly 200 of Embodiment 2. In the connector assembly of this embodiment, the mating connector 300 includes a second fixing piece 7, which is inserted into the second housing 5 in pairs, and the second fixing piece 7 is soldered to the mating circuit board 500.

[0066] During production, the second fixing piece 7 can adopt a fixing structure similar to that of the first fixing piece 4. Alternatively, it can be inserted into both ends of the second housing 5 in the horizontal X direction, as in this embodiment. By positioning the second fixing piece 7 at both ends of the horizontal X direction, the assembly and welding processes can be reduced, improving installation efficiency. It also facilitates the offset of the second housing 5 in the vertical Y direction, absorbing some deformation during the installation of the floating connector 100 and the mating connector 300, and preventing the connection from being too secure, which could cause the second fixing piece 7 to detach from the mating circuit board 500.

[0067] The above description is merely an example and illustration of the structure of this invention, and while the description is specific and detailed, it should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this invention, and these obvious substitutions all fall within the protection scope of this invention.

Claims

1. A floating connector, one end of which is fixed to a circuit board (400) and the other end is movably connected to a mating connector (300), characterized in that, The floating connector includes: The first outer shell (1) includes a pair of first plates (11) arranged in the transverse direction (X) and a pair of second plates (12) arranged in the longitudinal direction (Y), the first plates (11) and the second plates (12) together surround to form a cavity (13); A first inner shell (2) is movably disposed within the chamber (13). The first inner shell (2) includes an inner shell body (21) and a connecting arm (22) disposed on the inner shell body (21). The inner shell body (21) is provided with a insertion cavity (211) and a base (212). The first terminal (3) includes a first soldering part (31) and a first contact part (32). The first soldering part (31) is electrically connected to the circuit board (400), and the first contact part (32) abuts against the base (212). The first outer shell (1) and the first inner shell (2) are respectively provided with a first outer base surface (14) and a first inner base surface (23) at the end facing the mating connector (300). The first inner base surface (23) does not protrude from the first outer base surface (14) in the height direction (Z).

2. The floating connector according to claim 1, characterized in that, The base (212) is provided with a second inner base surface (2121), which is lower than the first inner base surface (23) in the height direction (Z).

3. The floating connector according to claim 1, characterized in that, The connecting arm (22) includes a first connecting block (221) and a second connecting block (222). The first connecting block (221) extends from the inner housing body (21) toward the circuit board (400) in the height direction (Z), and the second connecting block (222) extends from the first connecting block (221) outward in the transverse direction (X). The second plate (12) is provided with a slot (121), and the second connecting block (222) is disposed in the slot (121), and the second connecting block (222) does not protrude from the slot (121) in the transverse direction (X).

4. The floating connector according to claim 1, characterized in that, The first terminal (3) also includes a first bend (33) and a second bend (34), the opening of the first bend (33) facing the circuit board (400), the opening of the second bend (34) facing the mating connector (300), and both the first bend (33) and the second bend (34) are located below the inner housing body (21).

5. The floating connector according to claim 4, characterized in that, The first plate (11) is provided with a protrusion (111), which protrudes toward the cavity (13) in the longitudinal direction (Y), and the protrusion (111) is limited to the first bending part (33) and the inner shell body (21).

6. The floating connector according to claim 1, characterized in that, It also includes a first fixing piece (4), which is inserted in pairs into the first plate (11) and close to the second plate (12), and the first fixing piece (4) is soldered to the circuit board (400).

7. A connector assembly, characterized in that, Includes mating connectors (300) and floating connectors (100) as described in any one of claims 1-6; The mating connector (300) is fixed on the mating circuit board (500). The mating connector (300) includes a second housing (5) and a second terminal (6). The second housing (5) is provided with a mating chamber (51) and a plug-in end (52). The plug-in end (52) is located at one end of the second housing (5) away from the mating circuit board (500). The second terminal (6) includes a second welding part (61) and a second contact part (62). The second welding part (61) is electrically connected to the mating circuit board (500), and the second contact part (62) is fixedly connected to the inner wall of the second housing (5). The plug end (52) is inserted into the plug cavity (211), the base (212) is inserted into the mating chamber (51), and the second contact part (62) is electrically connected to the first contact part (32).

8. The connector assembly according to claim 7, characterized in that, The second terminal (6) also includes a second main body (63), the second welding part (61) and the second contact part (62) are disposed at both ends of the second main body (63), the terminal thickness at the position of the second main body (63) is a, and the terminal thickness at the position of the second contact part (62) is b. Then a and b satisfy the relationship: a>b; at this time, the first contact part (32) protrudes toward the insertion cavity (211).

9. The connector assembly according to claim 7, characterized in that, The first terminal (3) also includes a first main body (30), the terminal thickness at the position of the first main body (30) is c, and the terminal thickness at the position of the first contact part (32) is d. Then c and d satisfy the relationship: c > d; at this time, the second contact part (62) protrudes toward the mating chamber (51).

10. The connector assembly according to claim 8, characterized in that, The second main body (63) is provided with a bending structure at the connection between the second welding part (61) and the second contact part (62); the second welding part (61) abuts against the inner wall of the insertion cavity (211) at one end near the bending structure, and the end of the second contact part (62) is engaged with the inner wall of the insertion cavity (211) facing the insertion end (52).

11. The connector assembly according to claim 7, characterized in that, The mating connector (300) includes a second fixing piece (7), which is inserted into the second housing (5) in pairs, and the second fixing piece (7) is soldered onto the mating circuit board (500).

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