Socket and connector assembly

Abstract

The invention relates to the field of electric connectors, in particular to a socket and a connector assembly. The socket is used for solving the technical problems that an existing socket needs to be fixed for use and cannot buffer impact during plugging and unplugging of a plug. The connector assembly is used for solving the technical problem that an existing electric connector assembly is prone to being damaged during plugging and unplugging. The socket comprises a socket shell and a mounting shell, and the mounting shell comprises a front side wall and a rear side wall which are axially and oppositely arranged; floating holes are formed in the front side wall and the rear side wall, a floating gap is reserved between the front side wall and the rear side wall, the socket shell is inserted into the floating holes in a floating mode, and a connecting plate extending into the floating gap is arranged on the socket shell; axial elastic reset structures are arranged between the connecting plate and the front side wall and between the connecting plate and the rear side wall. A reset spring set is arranged between the peripheral side of the connecting plate and the mounting shell. According to the above structure, the impact of the plug can be reduced during plugging, and the multi-time plugging efficiency of the plug and the socket is improved to a great extent.

Description

Technical Field

[0001] The invention belongs to the field of electrical connectors, and in particular relates to a socket and a connector assembly. Background Art

[0002] Unmanned storage systems are gradually becoming the mainstream of storage systems, especially for certain dangerous goods, such as flammable and explosive materials. Unmanned storage systems can avoid the harm of dangerous goods to technicians, and can also avoid safety hazards caused by technical personnel's illegal operations. In the current unmanned storage system, technicians need to use unmanned transfer carts to realize the transfer of goods between transport vehicles and shelves. In this process, the unmanned transfer cart may face on-site conductive plug-in requirements such as plugging in power. This means that the external plug of the unmanned transfer cart and the external socket of the adapter device not only need a large floating amount and floating guide range to overcome the influence of tolerance accumulation such as the installation accuracy of the external plug, the installation accuracy of the external socket, and the parking position of the unmanned transfer cart, but also require the external socket to have good buffering capacity to reduce the impact of the external plug when it is inserted and unplugged. Existing sockets are generally fixedly installed on the adapter device. When used in the scene of plugging in with the unmanned transfer cart, they are easily damaged by the impact of plugging and unplugging, thereby affecting the normal operation of the entire unmanned storage system. Summary of the invention

[0003] The purpose of the present invention is to provide a socket to solve the technical problem that the existing socket needs to be fixed for use and cannot buffer the impact when the plug is plugged in and out. The purpose of the present invention is also to provide a connector assembly to solve the technical problem that the existing electrical connector assembly is easily damaged when plugged in and out.

[0004] The present invention adopts the following technical solution:

[0005] A socket comprises a socket shell and a mounting shell, wherein the mounting shell is used for fixed installation on an adapter device, and comprises a front side wall and a rear side wall arranged axially opposite to each other; floating holes are provided on the front side wall and the rear side wall, and a floating gap is left between the front side wall and the rear side wall, the socket shell is floatingly inserted in the floating holes, and a connecting plate extending into the floating gap is provided on the socket shell; an axial elastic reset structure is provided between the connecting plate and the front side wall and the rear side wall, and a reset spring group is provided between the peripheral side of the connecting plate and the mounting shell, and the reset spring group applies an elastic retaining force to the socket shell in the radial and angular directions of the socket shell.

[0006] Furthermore, the axial elastic reset structure is a corrugated spring sleeved on the socket housing.

[0007] Furthermore, the return spring group includes a plurality of tension springs which are arranged circumferentially around the socket housing and extend radially along the socket housing.

[0008] Furthermore, the connecting plate includes a base and a front wing plate and a rear wing plate arranged axially at intervals along the base, and a first connecting pin is fixedly connected between the front wing plate and the rear wing plate; a second connecting pin is fixedly connected between the front side wall and the rear side wall; the first connecting pin and the second connecting pin are arranged in groups corresponding to the tension springs in the reset spring group in the circumferential direction of the socket housing, and the two ends of the tension spring in the reset spring group are respectively connected to the corresponding first connecting pin and second connecting pin.

[0009] Furthermore, the mounting shell includes a front shell and a rear shell, the front side wall is located on the front shell and has a front annular flange extending axially along the mounting shell, and the rear side wall is located on the rear shell and has a rear annular flange extending axially along the mounting shell; the front annular flange is axially aligned with the rear annular flange and the ends are abutted to form a complete circumferential side wall.

[0010] Furthermore, both the front shell and the rear shell are provided with a convex receiving cavity for receiving the axial elastic reset structure.

[0011] Furthermore, the plug-in end of the socket housing has a guiding bell mouth with the large end facing outward, and a corner straightening structure is provided on the side wall of the guiding bell mouth. The corner straightening structure is used to cooperate with the guiding matching structure on the adapter plug to achieve corner floating alignment of the socket housing.

[0012] Furthermore, the corner straightening structure is a guide groove arranged on the side wall of the guide bell mouth, one end of the guide groove extends to the edge of the large end of the guide bell mouth and has a flared mouth for guiding and cooperating with the guide pin on the adapter plug.

[0013] Furthermore, the socket housing also includes a flameproof straight tube section for tightly plugging and fitting with the plug housing of the adapter plug, and the flameproof straight tube section is arranged behind the small end of the guide bell mouth.

[0014] Furthermore, the flameproof straight tube section is directly connected to the guide bell mouth.

[0015] Furthermore, the corner straightening structures are arranged in groups along the circumference of the socket housing.

[0016] Beneficial effects: The present invention proposes a brand-new socket. The socket of the present invention comprises a socket housing and a mounting housing, wherein the mounting housing is used for fixed mounting on an adapter device, and has a front side wall and a rear side wall arranged axially opposite to each other. Both the front side wall and the rear side wall are provided with floating holes, and the socket housing is floatingly inserted in the floating holes, so that the socket housing can float relative to the mounting housing in radial, axial and angular directions. A floating gap is left between the front side wall and the rear side wall, and a connecting plate extending into the floating gap is provided on the socket housing to prevent the socket housing from falling out of the mounting housing. An axial elastic reset structure is provided between the connecting plate and the front side wall and the rear side wall, and a reset spring group is provided between the peripheral side of the connecting plate and the mounting housing, and the reset spring group applies an elastic retaining force to the socket housing in the radial and angular directions of the socket housing. Through the retention of the axial elastic reset structure and the reset spring group, the socket housing can be maintained at a predetermined position on the mounting housing without being subjected to external force. During plugging and unplugging, the retention force of the axial elastic reset structure and the reset spring group can provide a buffering effect to reduce the impact when the socket and the plug are plugged in. After the plug is pulled out, the socket housing can be reset under the action of the axial elastic reset structure and the reset spring group for the next plug-in. Therefore, the socket will not be damaged by the impact of the plug when plugged in, so it is easy to plug in, which greatly improves the efficiency of multiple plug-in between the plug and the socket.

[0017] A connector assembly includes a socket and a plug, the socket including a socket shell and a mounting shell, the mounting shell is used for fixed installation on an adapter device, and includes a front side wall and a rear side wall arranged axially opposite to each other; floating holes are provided on the front side wall and the rear side wall, and a floating gap is left between the front side wall and the rear side wall, the socket shell is floatingly inserted in the floating holes, and a connecting plate extending into the floating gap is provided on the socket shell; an axial elastic reset structure is provided between the connecting plate and the front side wall and the rear side wall, and a reset spring group is provided between the circumferential side of the connecting plate and the mounting shell, and the reset spring group applies an elastic retaining force to the socket shell in the radial and angular directions of the socket shell.

[0018] Furthermore, the axial elastic reset structure is a corrugated spring sleeved on the socket housing.

[0019] Furthermore, the return spring group includes a plurality of tension springs which are arranged circumferentially around the socket housing and extend radially along the socket housing.

[0020] Furthermore, the connecting plate includes a base and a front wing plate and a rear wing plate arranged axially at intervals along the base, and a first connecting pin is fixedly connected between the front wing plate and the rear wing plate; a second connecting pin is fixedly connected between the front side wall and the rear side wall; the first connecting pin and the second connecting pin are arranged in groups corresponding to the tension springs in the reset spring group in the circumferential direction of the socket housing, and the two ends of the tension spring in the reset spring group are respectively connected to the corresponding first connecting pin and second connecting pin.

[0021] Furthermore, the mounting shell includes a front shell and a rear shell, the front side wall is located on the front shell and has a front annular flange extending axially along the mounting shell, and the rear side wall is located on the rear shell and has a rear annular flange extending axially along the mounting shell; the front annular flange is axially aligned with the rear annular flange and the ends are abutted to form a complete circumferential side wall.

[0022] Furthermore, both the front shell and the rear shell are provided with a convex receiving cavity for receiving the axial elastic reset structure.

[0023] Furthermore, the plug-in end of the socket housing has a guiding bell mouth with the large end facing outward, and a corner straightening structure is provided on the side wall of the guiding bell mouth. The corner straightening structure is used to cooperate with the guiding matching structure on the adapter plug to achieve corner floating alignment of the socket housing.

[0024] Furthermore, the corner straightening structure is a guide groove arranged on the side wall of the guide bell mouth, one end of the guide groove extends to the edge of the large end of the guide bell mouth and has a flared mouth for guiding and cooperating with the guide pin on the adapter plug.

[0025] Furthermore, the socket housing also includes a flameproof straight tube section for tightly plugging and fitting with the plug housing of the adapter plug, and the flameproof straight tube section is arranged behind the small end of the guide bell mouth.

[0026] Furthermore, the flameproof straight tube section is directly connected to the guide bell mouth.

[0027] Furthermore, the corner straightening structures are arranged in groups along the circumference of the socket housing.

[0028] Furthermore, the pin end of the socket has a pin section; the socket on the plug has a hole section, and the hole section and the pin section are mated with each other to achieve axial floating insertion between the socket and the plug.

[0029] Beneficial effects: The present invention proposes a new connector assembly, which includes a socket and a plug, and the socket includes a socket housing and a mounting housing, wherein the mounting housing is used for fixed installation on the adapter device, and has a front side wall and a rear side wall arranged axially opposite to each other. Both the front side wall and the rear side wall are provided with floating holes, and the socket housing is floatingly inserted in the floating holes to realize that the socket housing can float relative to the mounting housing in the radial, axial and angular directions. A floating gap is left between the front side wall and the rear side wall, and a connecting plate extending into the floating gap is provided on the socket housing to prevent the socket housing from falling out of the mounting housing. An axial elastic reset structure is provided between the connecting plate and the front side wall and the rear side wall, and a reset spring group is provided between the peripheral side of the connecting plate and the mounting housing, and the reset spring group applies an elastic retaining force to the socket housing in the radial and angular directions of the socket housing. Through the retention of the axial elastic reset structure and the reset spring group, the socket housing can be maintained at a predetermined position on the mounting housing without being subjected to external force. During plugging and unplugging, the retention force of the axial elastic reset structure and the reset spring group can provide a buffering effect to reduce the impact when the socket and the plug are plugged in. After the plug is pulled out, the socket housing can be reset under the action of the axial elastic reset structure and the reset spring group for the next plug-in. Therefore, the socket will not be damaged by the impact of the plug when plugged in, so it is easy to plug in, which greatly improves the efficiency of multiple plug-in between the plug and the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A cross-sectional structural diagram of an embodiment of the socket of the present invention;

[0031] Figure 2 For Figure 1 An isometric view of the mating plug;

[0032] Figure 3 for Figure 1 Middle socket and Figure 2 Axonometric view of the middle plug when plugged in;

[0033] Figure 4 for Figure 1 The structural diagram of the middle return spring group;

[0034] Figure 5 for Figure 3 A schematic diagram of the structure when the middle guide groove and the guide pin cooperate with each other;

[0035] Figure 6 It is a schematic diagram of radial floating amount;

[0036] Figure 7 It is a structural schematic diagram when the socket and the plug are aligned;

[0037] Figure 8 for Figure 5The initial state diagram of the middle guide pin entering the flared opening;

[0038] Fig. 9 for Figure 3 Geometric diagram of the mid-circumferential guidance range;

[0039] Fig.10 for Figure 1 Middle socket and Figure 2 A cross-sectional diagram of the middle plug when initially plugged in place;

[0040] Fig.11 for Figure 1 Middle socket and Figure 2 A cross-sectional diagram of the middle plug when it is over-inserted to the limit position;

[0041] Fig.12 It is a partial structural cross-sectional view of the socket after the plug is pulled out;

[0042] The names of the components corresponding to the corresponding reference numerals in the figure are: 1. socket; 2. plug; 3. socket shell; 4. mounting shell; 5. fixed mounting hole; 6. socket body; 7. front side wall; 8. rear side wall; 9. floating hole; 10. floating gap; 11. connecting plate; 12. axial elastic reset structure; 13. reset spring group; 14. corrugated spring; 15. tension spring; 16. base; 17. front wing plate; 18. rear wing plate; 19. first connecting pin; 20. second connecting pin; 21. front shell; 22. rear shell; 23. front annular flange; 24. rear annular flange; 25. guide bell mouth; 26. guide groove; 27. flaring; 28. guide pin; 29. ​​flameproof straight tube section; 30. plug-in guide chamfer; 31. socket; 32. through-hole section; 33. pin; 34. through-pin section; 35. accommodating convex cavity. DETAILED DESCRIPTION

[0043] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0044] The inventive concept of the socket of the present invention is as follows:

[0045] A socket, specifically comprising a socket housing and a mounting housing. The mounting housing is used for fixed connection with an adapter device, and specifically comprises a front side wall and a rear side wall arranged axially opposite to each other. Both the front side wall and the rear side wall are provided with floating holes, and the socket housing is floatingly inserted in the floating holes, so that the socket housing can float relative to the mounting housing in radial, axial and angular directions. A floating gap is left between the front side wall and the rear side wall, and a connecting plate extending into the aforementioned floating gap is provided on the socket housing to prevent the socket housing from falling out of the mounting housing.

[0046] An axial elastic reset structure is provided between the connecting plate and the front side wall and the rear side wall, and a reset spring group is provided between the peripheral side of the connecting plate and the mounting housing. The reset spring group applies an elastic retaining force to the socket housing in the radial and angular directions of the socket housing, and the axial elastic reset structure applies an elastic retaining force to the socket housing in the axial direction of the socket housing. Through the retention of the axial elastic reset structure and the reset spring group, the socket housing can be maintained at a predetermined position on the mounting housing without being subjected to external forces. During plugging and unplugging, the retention force of the axial elastic reset structure and the reset spring group can provide a buffering effect to reduce the impact when the socket and the plug are plugged in. After the plug is pulled out, the socket housing can be reset under the action of the axial elastic reset structure and the reset spring group for the next plugging. Therefore, the above structure can ensure that the socket will not be damaged by the impact of the plug when plugging and plugging, and also greatly improves the efficiency of multiple plugging and unplugging of the plug and the socket.

[0047] Based on the above inventive concept, an embodiment of the socket of the present invention is as follows:

[0048] A socket 1, the structure of which can refer to Figure 1 As shown, it specifically includes a socket housing 3 and a mounting housing 4. The mounting housing 4 is provided with a fixed mounting hole 5 so that the socket 1 can be fixedly mounted on the adapter device. The socket housing 3 is provided with a socket body 6 including an insulator and a pin 33. The structure of the socket body 6 is an existing structure and will not be repeated here.

[0049] The mounting housing 4 includes a front side wall 7 and a rear side wall 8 arranged opposite to each other in the axial direction. The front side wall 7 and the rear side wall 8 are both provided with coaxial floating holes 9. The socket housing 3 is inserted into the floating holes 9 in a gap, so that the socket housing 3 has a floating amount in the axial, radial and angular directions. A floating gap 10 is also left between the front side wall 7 and the rear side wall 8. The socket housing 3 is provided with a connecting plate 11 extending into the floating gap 10 to prevent the socket housing 3 from escaping from the mounting housing 4. An axial elastic reset structure 12 is provided between the connecting plate 11 and the front side wall 7 and the rear side wall 8, and a reset spring group 13 is provided between the connecting plate 11 and the circumferential side wall. The reset spring group 13 applies an elastic retaining force to the socket housing 3 in the radial and angular directions of the socket housing 3, and the axial elastic reset structure 12 applies an elastic retaining force to the socket housing 3 in the axial direction of the socket housing 3.

[0050] Socket 1 can be connected with Figure 2 The plug 2 shown is plugged in, and the overall structure after plugging in can be referred to Figure 3As shown. When the plug 2 is not inserted, the axial elastic reset structure 12 and the reset spring group 13 provide a holding force, so that the socket housing 3 can be kept at a predetermined position on the mounting housing 4. When the plug 2 is plugged in or out, the impact caused by the plug 2 in the radial, axial and angular directions can be buffered by the aforementioned holding force, thereby preventing the impact from damaging the socket 1. After the plug 2 is pulled out, under the action of the axial elastic reset structure 12 and the reset spring group 13, the socket housing 3 is reset in the radial, axial and angular directions for the next plug-in.

[0051] The key to this implementation is that the axial elastic reset structure 12 is a corrugated spring 14 sleeved on the socket housing 3. The corrugated spring 14 can be set individually or stacked in the axial direction. One side of the corrugated spring 14 abuts on the front side wall 7 or the rear side wall 8, and the other side abuts on the corresponding plate surface of the connecting plate 11. In this way, when the socket housing 3 is not subjected to force, the corrugated spring 14 provides elastic retaining force from both sides of the connecting plate 11 to keep the socket housing 3 at a predetermined position on the mounting housing 4 in the axial direction. When the plug 2 is inserted, the socket housing 3 moves with the plug 2. At this time, the corrugated spring 14 corresponding to the insertion direction of the plug 2 is compressed and provides elastic reaction force to reduce the impact when the plug 2 is inserted. After the plug 2 is pulled out, the compressed corrugated spring 14 recovers and drives the socket housing 3 to reset for the next plug-in. At the same time, the corrugated spring 14 also has a certain retaining effect on the lateral tilt of the socket housing 3 relative to the axial direction, and the small size can effectively reduce the space occupied by the socket 1. Of course, the aforementioned axial elastic reset structure 12 can also be a disc spring or an elastic rubber ring. The disc spring or elastic rubber ring is sleeved on the peripheral side of the socket housing 3 , with one side thereof abutting against the front side wall 7 or the rear side wall 8 , and the other side abutting against the corresponding plate surface of the connecting plate 11 .

[0052] For reference Figure 4As shown, the reset spring group 13 is preferably composed of a plurality of tension springs 15 arranged around the circumference of the socket housing 3 and extending radially along the socket housing 3. All tension springs 15 are arranged around the circumference of the socket housing 3 on the side of the socket housing 3, and the expansion and contraction direction of the tension springs 15 extends radially along the socket housing 3. The tension springs 15 are preferably arranged uniformly along the circumference so that the socket housing 3 and the mounting housing 4 are arranged axially concentrically. In other embodiments, the tension springs 15 can also be arranged unevenly along the circumference so that the socket housing 3 and the mounting housing 4 are eccentrically arranged in the axial direction. One end of the tension spring 15 is connected to the socket housing 3, and the other end is connected to the mounting housing 4. After being installed in place, the tension spring 15 is in a stretched state to provide a reliable holding force. In this way, when the socket housing 3 is not subjected to force, the tension spring 15 group provides elastic holding force in the radial and angular directions of the socket housing 3 from the circumferential side of the connecting plate 11 at the same time, so that the socket housing 3 is kept at a predetermined position on the mounting housing 4 in the radial and angular directions. When the plug 2 is inserted, the socket housing 3 moves with the plug 2. At this time, if the socket housing 3 has radial displacement, the tension spring 15 corresponding to the moving direction of the socket housing 3 is gradually recovered and shortened, and the tension spring 15 on the other opposite side is gradually stretched and lengthened to reduce the impact when the plug 2 is inserted. If the socket housing 3 is twisted in the corner direction, the tension spring 15 corresponding to the twisting direction of the socket housing 3 is gradually recovered and shortened, and the tension spring 15 on the other opposite side is gradually stretched to reduce the impact when the plug 2 is inserted. After the plug 2 is pulled out, all the tension springs 15 are restored and drive the socket housing 3 to reset for the next insertion. When the socket housing 3 moves axially relative to the mounting housing 4 or deflects relative to the axial direction, the aforementioned tension spring 15 group can also provide a certain elastic retention force. Of course, the aforementioned reset spring group 13 can also be a compression spring group arranged circumferentially and extending in the radial direction. The compression spring group is composed of more than two compression springs, all of which are arranged circumferentially on the side of the socket housing 3, and the expansion and contraction direction of the compression springs extends in the radial direction. One end of the compression spring abuts against the socket housing 3, and the other end abuts against the mounting housing 4. After being installed in place, the compression spring is in a compressed state to provide a reliable holding force.

[0053] For reference Figure 1As shown, the aforementioned connecting plate 11 specifically includes a base 16 and a front wing plate 17 and a rear wing plate 18 arranged axially at intervals along the base 16. A first connecting pin 19 is fixedly connected between the front wing plate 17 and the rear wing plate 18, and a second connecting pin 20 is fixedly connected between the front side wall 7 and the rear side wall 8. The first connecting pin 19 and the second connecting pin 20 are arranged in groups corresponding to the tension springs 15 in the tension spring 15 group in the circumferential direction of the socket housing 3, that is, in the expansion and contraction direction of each tension spring 15, the aforementioned first connecting pin 19 and the second connecting pin 20 are arranged. The two ends of the tension spring 15 in the tension spring 15 group are hooked and connected to the first connecting pin 19 and the second connecting pin 20 respectively. Such a setting is simple to install and easy to disassemble and assemble, which can reduce the assembly cost of the socket 1, thereby improving the production and processing efficiency. Of course, the aforementioned tension spring 15 can also be fixed to the mounting housing 4 and the socket housing 3 respectively by welding.

[0054] The mounting housing 4 specifically includes a front housing 21 and a rear housing 22, the front side wall 7 is located on the front housing 21 and has a front annular flange 23 extending axially along the mounting housing 4, and the rear side wall 8 is located on the rear housing 22 and has a rear annular flange 24 extending axially along the mounting housing 4. After being installed in place, the front annular flange 23 and the rear annular flange 24 are axially aligned and the ends are butted against each other to form a complete circumferential side wall. During installation, the front housing 21 and the rear housing 22 are opened, the socket housing 3, the axial elastic reset structure 12 and the reset spring group 13 are installed in place, and then the rear housing 22 and the front housing 21 are installed as a whole. This structure is simple, and thus greatly facilitates the assembly of the socket 1. At the same time, since the front annular flange 23 and the rear annular flange 24 form a complete circumferential side wall, the circumferential side wall, the front side wall 7, and the rear side wall 8 can form a complete protective structure to protect the reset spring group 13. The front housing 21 and the rear housing 22 can be connected as a whole through the aforementioned second connecting pin 20. Specifically, the two ends of the second connecting pin 20 pass through the front housing 21 and the rear housing 22 respectively, and are fixed to the front housing 21 and the rear housing 22 by riveting, so as to fix the front housing 21 and the rear housing 22 into a whole. The front housing 21 and the rear housing 22 can also be installed as a whole by fastener connection or welding. On this basis, a convex cavity 35 for accommodating the axial elastic reset structure 12 can be provided on the front housing 21 and the rear housing 22, so that the front housing 21 and the rear housing 22 can be made relatively small in other positions, so as to further save the occupied space of the socket 1.

[0055] On the basis of the above structure, a guide bell mouth 25 can be provided at the plug-in end of the socket housing 3. The guide bell mouth 25 is specifically a cone-shaped cylindrical structure, whose small end is directly or indirectly connected to the plug-in end of the socket housing 3, and the large end is arranged axially outward. When plugged in, the plug-in end of the plug 2 first enters the large end of the guide bell mouth 25. At this time, if the socket 1 is not radially aligned with the plug 2, the plug-in end of the plug 2 presses against the inner wall of the guide bell mouth 25 to drive the socket housing 3 to move radially until the socket housing 3 moves to a position where the socket 1 and the plug 2 are aligned and can be plugged in. A corner straightening structure is provided on the side wall of the guide bell mouth 2, and the corner straightening structure is used to cooperate with the guide matching structure on the adapter plug 2 to achieve the floating alignment of the corner of the socket housing 3, so that the corresponding jack 31 and the pin 33 can be aligned for smooth plugging.

[0056] For reference Figure 3 , Figure 5 As shown, the corner straightening structure is specifically a guide groove 26 arranged on the side wall of the guide bell mouth 25, one end of the guide groove 26 extends to the edge of the large end of the guide bell mouth 25 and has a flared opening 27. Correspondingly, a guide pin 28 for guiding and cooperating with the guide groove 26 is arranged on the plug 2. When plugged in, the guide pin 28 on the plug 2 first enters the flared opening 27. At this time, if the plug 2 and the socket 1 are not aligned in the corner direction, the guide pin 28 will press against the flared opening 27 as the plug 2 is inserted, and drive the socket housing 3 to rotate in the direction of the corner alignment of the plug 2 until the socket 1 and the plug 2 are aligned in the corner direction. The corner straightening structure is a guide groove 26 arranged on the side wall of the guide bell mouth 25, which can effectively utilize the space on the socket housing 3, thereby preventing the corner straightening structure from occupying too much extra space. At the same time, since the flared opening 27 is arranged on the large end of the bell mouth, its opening is relatively large, which can provide a larger blind insertion guide range in the corner direction. Therefore, by adopting the above structure, a wider range of corner alignment guidance can be achieved while ensuring the miniaturization of the socket 1. In order to ensure the guiding effect, the guide grooves 26 can be arranged in groups along the axial direction of the socket housing 3, such as two, three, four or even more. The guide grooves 26 in groups are preferably evenly distributed on the socket housing 3 along the circumferential direction. Of course, the guide grooves 26 can also adopt non-uniform width grooves, that is, one end of the guide groove 26 extends to the edge of the large end of the guide bell mouth 25, and the other end extends inward along the axial direction. The groove width of the guide groove 26 gradually converges inward to achieve the purpose of corner guidance.

[0057] For reference Figure 3 , Figure 5As shown, the socket housing 3 also includes a flameproof straight barrel section 29 for tightly plugging and matching with the socket housing 3 of the adapter plug 2, and the end of the flameproof straight barrel section 29 is directly or indirectly connected to the small end of the guide bell mouth 25. Specifically, in this embodiment, the flameproof straight barrel section 29 is a partial or complete straight barrel section of the plug-in end of the socket housing 3. One end of the straight barrel section is directly or indirectly connected to the small end of the guide bell mouth 25; in order to make the socket 1 compact and further reduce the occupied space, the flameproof straight barrel section is preferably directly connected to the guide bell mouth 25. In other embodiments, a transition barrel section can be connected between the flameproof straight barrel section 29 and the guide bell mouth 25. The barrel cavity can be tightly matched with the plug-in end of the plug 2, so that after the plug 2 is inserted, the matching gap between the flameproof straight barrel section 29 and the plug 2 can be minimized as much as possible to prevent the electric sparks, arcs, etc. accidentally generated during the plug-in and power-on process of the plug 2 and the socket 1 from escaping from the matching gap. In this way, the socket 1 can have good flameproof performance and can be used in operations in dangerous environments such as flammable and explosive environments. At the same time, since the guide groove 26 is arranged on the side wall of the guide bell mouth 25, the other end of the guide groove 26 relative to the flared mouth 27 does not exceed the junction of the guide bell mouth 25 and the flameproof straight tube section 29, that is, the flameproof straight tube section 29 and the guide bell mouth 25, the guide groove 26, the guide pin 28 and other guiding structures are staggered in the axial direction (that is, in the connector plugging direction), so the arrangement of the aforementioned guiding structure does not affect the flameproof effect of the flameproof straight tube section 29. In this way, on the one hand, it can ensure that the inner wall surface of the flameproof straight tube section 29 can be closely matched with the plug 2 at all places; on the other hand, it can also prevent the guide groove 26 from affecting the sealing of the flameproof straight tube section 29, thereby meeting the explosion-proof requirements and reducing the risk of the flameproof straight tube section 29 being broken down by current.

[0058] Embodiments of the connector assembly of the present invention:

[0059] A connector assembly includes a socket 1 and a plug 2. The main body of the plug 2 is an existing structure, which can be referred to Figure 2 As shown, a plug-in guide chamfer 30 and a guide pin 28 are provided at the plug-in end. The guide pin 28 extends radially outward along the plug 2, and is provided in the circumferential direction of the plug 2 corresponding to the guide groove 26. The structure of the socket 1 can refer to the embodiment of the socket 1 described above, and will not be repeated here. The end of the pin 33 of the socket 1 has a pin section 34; the socket 31 on the plug 2 has a hole section 32, and the hole section 32 and the pin section 34 are over-plugged to fit, so that there is an axial plug-in floating amount between the socket 1 and the plug 2. This can prevent the socket 1 and the plug 2 from being damaged during over-plugging on the one hand, and on the other hand, it also improves the flexibility of use of the socket 1 and the plug 2.

[0060] For the convenience of explanation, the connector assembly of the present invention is now described in detail in combination with a certain demand scenario. It should be emphasized that this demand scenario is only a specific example given for the convenience of explanation and does not have any special meaning.

[0061] It is now required that the socket 1 and the plug 2 have Figure 6 The single-side radial floating amount δ, axial floating amount L and single-side angular floating amount α are shown. Figure 7 As shown, the maximum diameter of the guide bell mouth 25 can be D2, and the outer diameter of the plug end of the plug 2 is d. In this way, when the plug 2 is plugged into the socket 1, it is necessary to ensure that δ≤(D2-d) / 2, so as to ensure that the guiding effect of the guide bell mouth 25 can fully cover the radial floating amount of the socket 1.

[0062] For reference Fig. 9 As shown, the maximum outer diameter of the large end of the guide bell mouth 25 is D1, and the maximum diameter is D2. Figure 8 As shown, the diameter of the guide pin 28 on the plug 2 is a, and the maximum opening width of the expansion 27 of the guide groove 26 is b. Fig. 9 The geometric relationship shown in . Fig. 9 The middle θ is the single-side corner guiding range of the socket 1 under the current parameters, θ≥α, so as to ensure that the guiding effect of the flaring 27 can fully cover the corner floating amount of the socket 1.

[0063] Since the pin 33 is lengthened and the socket 31 is deepened, please refer to Fig.10 As shown, when the distance between the abutting end face of the plug 2 and the abutting end face of the socket housing 3 is L, the contact length between the pin 33 and the socket 31 is sufficient to achieve a sufficient conductive connection. At this time, the pin 33 can be inserted forward a certain distance L1 (L1>0) to reach the predetermined fully plugged position. Fig.11 As shown, the pin 33 is inserted forward a certain distance L2 (L2>0), at which time the abutting end surface of the plug 2 and the abutting end surface of the socket housing 3 are pressed against each other, and the pin 33 still does not press against the bottom of the hole 31. L=L1+L2, that is, the connector assembly has an axial floating amount L.

[0064] After the plug 2 is pulled out, the socket housing 3 is reset. At this time, the overall structure of the socket 1 can be referred to Fig.12 shown.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. Socket, It is characterized in that The invention comprises a socket housing (3) and a mounting housing (4), wherein the mounting housing (4) is used for being fixedly mounted on an adapting device, and comprises a front side wall (7) and a rear side wall (8) which are arranged axially opposite to each other; a floating hole (9) is provided on the front side wall (7) and the rear side wall (8), a floating gap (10) is left between the front side wall (7) and the rear side wall (8), the socket housing (3) is floatingly inserted in the floating hole (9), and a connecting plate (11) which extends into the floating gap (10) is provided on the socket housing (3); an axial elastic reset structure (12) is provided between the connecting plate (11) and the front side wall (7) and the rear side wall (8), and a reset spring group (13) is provided between the peripheral side of the connecting plate (11) and the mounting housing (4), and the reset spring group (13) applies an elastic retaining force to the socket housing (3) in the radial and angular directions of the socket housing (3).

2. The socket according to claim 1, It is characterized in that The axial elastic reset structure (12) is a corrugated spring (14) sleeved on the socket housing (3).

3. The socket according to claim 1, It is characterized in that The return spring group (13) comprises a plurality of tension springs (15) which are arranged around the circumference of the socket housing (3) and extend radially along the socket housing (3).

4. The socket according to claim 1, It is characterized in that The connecting plate (11) comprises a base (16) and a front wing plate (17) and a rear wing plate (18) arranged axially at intervals along the base (16); a first connecting pin (19) is fixedly connected between the front wing plate (17) and the rear wing plate (18); a second connecting pin (20) is fixedly connected between the front side wall (7) and the rear side wall (8); the first connecting pin (19) and the second connecting pin (20) are arranged in a group corresponding to the tension spring (15) in the return spring group (13) in the circumferential direction of the socket housing (3); and the two ends of the tension spring (15) in the return spring group (13) are respectively connected to the corresponding first connecting pin (19) and the second connecting pin (20).

5. The socket according to claim 4, It is characterized in that The mounting shell (4) comprises a front shell (21) and a rear shell (22); the front side wall (7) is located on the front shell (21) and has a front annular flange (23) extending axially along the mounting shell (4); the rear side wall (8) is located on the rear shell (22) and has a rear annular flange (24) extending axially along the mounting shell (4); the front annular flange (23) and the rear annular flange (24) are axially aligned and their ends abut against each other to form a complete circumferential side wall.

6. The socket according to claim 5, It is characterized in that The front housing (21) and the rear housing (22) are both provided with a convex accommodation cavity (35) for accommodating the axial elastic reset structure (12).

7. The socket according to any one of claims 1 to 6, It is characterized in that The plug-in end of the socket housing (3) has a guiding bell mouth (25) with the large end facing outwards, and a corner alignment structure is provided on the side wall of the guiding bell mouth (25). The corner alignment structure is used to cooperate with the guiding matching structure on the adapter plug (2) to achieve floating alignment of the corner of the socket housing (3).

8. The socket according to claim 7, It is characterized in that The corner straightening structure is a guide groove (26) arranged on the side wall of the guide bell mouth (25), one end of the guide groove (26) extends to the edge of the large end of the guide bell mouth (25) and has a flared opening (27) for guiding and matching with a guide pin (28) on the adapter plug (2).

9. The socket according to claim 7, It is characterized in that The socket housing (3) also includes a flameproof straight tube section (29) for tightly plugging and fitting with the plug housing of the adapter plug (2), wherein the flameproof straight tube section (29) is arranged behind the small end of the guide bell mouth (25).

10. The socket according to claim 9, It is characterized in that The flameproof straight tube section (29) is directly connected to the guide bell mouth (25).

11. The socket according to claim 7, It is characterized in that The corner straightening structures are arranged in groups along the circumference of the socket housing (3).

12. Connector assembly, It is characterized in that It comprises a socket (1) and a plug (2), wherein the socket (1) is the socket according to any one of claims 1 to 11.

13. The connector assembly according to claim 12, It is characterized in that The end of the pin (33) of the socket (1) has a pin-through section (34); the socket (31) on the plug (2) has a hole-through section (32); the hole-through section (32) and the pin-through section (34) are mated with each other to achieve axial floating mating between the socket (1) and the plug (2).

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