A connector

Abstract

The present invention discloses a connector, including a plug and a socket that are plugged into each other. The plug includes a plug shell, a plug rubber core, a plug terminal and a cable. The plug shell is composed of a first right-angled side and a second right-angled side. The plug rubber core is arranged in the first right-angled side. The socket includes a socket shell, a socket rubber core and a socket terminal. An insertion hole with an opening facing the second right-angled side is provided on one side of the front end of the plug rubber core. The front end of the plug terminal is horizontally inserted into the middle of the insertion hole, and gaps are provided between the two side surfaces of the plug terminal and the wall surface of the insertion hole. The front end of the socket terminal is a U-shaped plug-in section, which is inserted into the insertion hole and sleeved with the plug terminal. The present invention realizes 90-degree plug-in between the plug and the socket by setting an insertion hole on the plug rubber core and exposing the plug terminal inside, and then designing the front end of the socket terminal to be a U-shaped plug-in section plugged with the plug terminal, and the overall structure is simple.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a connector. Background Art

[0002] High-voltage and high-current connectors are important circuit components used in the power distribution unit (PDU) of passenger electric vehicles, and have a significant impact on the circuit performance of passenger electric vehicles.

[0003] The connection angles between the plug component and the socket component of the existing high-voltage and high-current connectors are generally 90 degrees and 180 degrees. When connected at 90 degrees, additional adapter terminals or right-angle terminals are generally required on the plug for connection. The overall structure is complex. In addition, an additional snap-fit ​​structure is also required between the rubber core and the plug shell for fixation. The assembly structure between the terminal and the rubber core is a slotted structure inside the rubber core to form a snap-fit ​​structure with the terminal, which makes assembly and disassembly difficult.

[0004] During the connection between the plug and the socket of the connector, in order to achieve good waterproof performance, a waterproof ring is generally mounted on the inner side of the plug-in end of the connector and the socket. The waterproof ring is usually fixed by a first card groove made on the inner side of the plug-in end to achieve card engagement and fixation. The installation of the waterproof ring requires a deep groove to be specially made on the inner side of the plug shell, which is difficult to process, has a high defective rate, and has a high processing cost. In addition, it is not convenient to install and remove the waterproof ring.

[0005] The elbow connectors of electric vehicles currently on the market are prone to accidental unplugging during use, that is, during use, the elbow connector is accidentally unplugged due to misoperation by the staff, resulting in abnormal interruption of use, which brings inconvenience to use. For this reason, people have added a locking handle to the elbow connector, such as the patent number "CN201620509572.7", named "A new type of multi-core elbow connector", which provides a new type of multi-core elbow connector, including a plug component and a socket component. The plug component includes a shell, an anti-touch rubber core, a middle rubber core, a rear rubber core, a transfer pin, a transfer spring and a socket. The manual states that the root of the handle is fixed to both sides of the shell through a rotating shaft, and the handle head can rotate around the rotating shaft; the spring lock is set on the top side of the shell, and when the handle head rotates to the top side of the shell, the spring lock can be locked with the handle. However, there is still room for improvement in the existing handle structure. When it is unlocked, there is a lack of a position retaining component (i.e., a limiting structure) between the handle and the shell, which causes the handle to rotate at will, affecting the connection between the plug component and the socket component. In addition, the locking piece on the handle is usually arranged on the outside of the handle, which may be easily opened due to misoperation, resulting in locking failure. Secondly, it is generally necessary to provide a receiving groove for accommodating the locking piece on the outside of the handle, which reduces the local strength of the handle and makes it easy for the handle to break after being subjected to force during use. Summary of the invention

[0006] In view of the above-mentioned existing technical defects, the present invention provides a connector, which realizes a 90-degree connection between the plug and the socket by setting an insertion hole on the plug rubber core to expose the internal plug terminal, and then designs the front end of the socket terminal to be a U-shaped plug-in section that is plugged into the plug terminal, thereby realizing the overall structure of the plug and the socket.

[0007] In order to solve the above technical problems, the present invention provides a connector, including a plug and a socket that are plugged into each other, the plug including a hollow plug shell, a plug rubber core arranged in the plug shell, a sheet-shaped plug terminal arranged in the plug rubber core, and a cable connected to the plug terminal and extending out of the plug shell, the plug shell is composed of a first right-angled side and a second right-angled side that are right angles to each other and internally communicated to form a hollow, the plug rubber core is arranged in the first right-angled side, the socket includes a socket shell, a socket rubber core arranged on the socket shell, and a socket terminal arranged on the socket rubber core, an insertion hole with an opening facing the second right-angled side is provided on one side of the front end of the plug rubber core, the front end of the plug terminal is horizontally inserted into the middle of the insertion hole, and gaps are provided between the two side surfaces of the plug terminal and the wall surface of the insertion hole; the front end of the socket terminal is a U-shaped plug-in section, the U-shaped plug-in section is inserted into the insertion hole and sleeved with the plug terminal.

[0008] Furthermore, the end of the second right-angled side is provided with a plug-in portion composed of an inner ring and an outer ring, a plug-in groove is provided between the inner ring and the outer ring, and a plug pressure plate is mounted on the inner ring, which is engaged with the plug rubber core; a waterproof ring and an annular spring are also mounted on the outer periphery of the inner ring, and a step surface for stopping the waterproof ring is provided on the outer periphery of the inner ring; the plug pressure plate includes a pressure plate body mounted inside the inner ring and an annular belt mounted outside the inner ring, the pressure plate body is connected to the annular belt by a number of connecting pieces, the annular belt abuts against the waterproof ring, and a number of positioning bayonet sockets for accommodating the connecting pieces in a one-to-one correspondence are provided at the outer end of the inner ring; a plug hole corresponding to the front and rear of the insertion hole is penetrated through the pressure plate body, and the pressure plate body is fixed to the plug housing by screws; the annular spring is located on the outer side of the annular belt, and the outer periphery of the annular spring protrudes from the outer peripheral surface of the inner ring.

[0009] Furthermore, the plug rubber core is provided with a terminal hole arranged along its length, the insertion hole is connected to the terminal hole and is located at one end of the terminal hole, the plug terminal is snap-fitted into the terminal hole, and the end of the terminal hole away from the insertion hole is open; guide grooves are symmetrically provided on the upper and lower wall surfaces of the terminal hole, and the upper and lower sides of the plug terminal are arranged in the guide grooves; at least one first positioning groove is recessed at the open end of the insertion hole, and a positioning block that is snap-fitted with the first positioning groove in a one-to-one manner is protruded on the inner side surface of the pressure plate body; at least one first positioning column is also protruded on the inner side surface of the pressure plate body, and a positioning hole that is inserted into the first positioning column is provided on the plug shell.

[0010] Furthermore, the plug also includes a claw arranged in the terminal hole and a tightening member arranged on the plug rubber core and pressing the claw inward, the claw includes a sheet-like clamping plate and an elastic buckle arranged in the middle of the clamping plate, the plug terminal is provided with a second clamping groove engaged with the elastic buckle, the front end of the plug rubber core is provided with a slide groove with one end being open, and the two sides of the clamping plate are arranged in the slide groove; a baffle located in front of the plug terminal is provided in the middle of the opening of the insertion hole, and the thickness of the baffle is the same as the thickness of the plug terminal.

[0011] Furthermore, the front end of the socket shell is provided with a plug-in interface for plugging with the plug-in part, the socket rubber core includes a main body and two terminal seats which are spaced apart at the front end of the main body and extend forward to the plug-in interface, the rear end of the socket terminal extends out of the socket rubber core, the front end of the socket terminal is arranged in the terminal seat, and the front end of the terminal seat is provided with a U-shaped groove which cooperates with the U-shaped plug-in section to expose the inner wall surface of the U-shaped plug-in section.

[0012] Furthermore, the socket also includes a fixed pressure plate, which is sleeved on the socket terminal and fixed to the socket shell, the main body is provided with a groove for accommodating the fixed pressure plate, the wall surface of the groove is provided with at least one second positioning column, and the outer periphery of the fixed pressure plate is provided with a second positioning groove which is engaged with the second positioning column in a one-to-one correspondence; a square accommodating groove is provided in the middle of the terminal seat along its extension direction, the opening of the accommodating groove is located at the bottom of the groove, and the width of the U-shaped groove is smaller than the width of the accommodating groove; each wall surface of the accommodating groove is provided with at least one positioning strip arranged along its extension direction, and the thickness of the positioning strip gradually decreases from the opening of the accommodating groove toward the bottom of the groove.

[0013] Furthermore, the socket terminal includes a U-shaped plug-in section at the front end, a connecting section in the middle and a wiring section at the rear end, and both sides of the connecting section are protruded with limit strips, and a clamping section is formed between the limit strip and the wiring section, and the fixed pressure plate is sleeved on the clamping section, and a clamping groove that is sleeved with the clamping section is provided on the fixed pressure plate, and one side of the clamping groove is an open structure, and the inner side of the opening structure is provided with a buckle that is buckled with the clamping section; the U-shaped plug-in section is sleeved with a U-shaped spring sheet that is adapted to it, and the inner side of the U-shaped spring sheet is provided with a plurality of elastic contact sheets.

[0014] Furthermore, the plug also includes a handle and a locking piece arranged on the handle, the handle includes a handle body and connecting arms bent at both ends of the handle body, the connecting arm is provided with a hinge hole hinged to the second right-angled side, an arc-shaped slot is provided at one side of the hinge hole, and clamping columns matching the arc-shaped slot are provided on both sides of the plug interface, one end of the arc-shaped slot is located on one side of the hinge hole, and the other end is away from the hinge hole and extends to the end position of the connecting arm, and a first introduction groove connected to the arc-shaped slot is provided at the end position of the connecting arm, an elastic positioning buckle located on the upper side of the arc-shaped slot is also provided on the inner side of the connecting arm, and the extension direction of the elastic positioning buckle is the same as the extension direction of the connecting arm, both sides of the second right-angled side are provided with limiting grooves engaged with the elastic positioning buckle, the surface of the first right-angled side is provided with a stepped position for blocking with the elastic positioning buckle after the handle is rotated 90 degrees, and the surface of the second right-angled side is also provided with a locking column adapted to the locking piece.

[0015] Furthermore, an assembly slot adapted to the locking piece is provided in the handle body along its length direction, a second introduction slot connected to the assembly slot is provided at one end of the handle body, and a square slot is provided at the bottom of the end of the handle body away from the second introduction slot; the locking piece is slidably arranged in the assembly slot, an open slot is provided on the surface of the handle body, and one end of the locking piece is located in the open slot.

[0016] The locking member comprises a push plate portion, two side hook feet and an insert plate portion placed between the two side hook feet, the push plate portion is slidably arranged in the open groove, the two side hook feet are symmetrically arranged at the two side positions of the lower side of the push plate portion and extend forward; the rear end of the insert plate portion is arranged in the middle of the bottom of the push plate portion, the front end of the insert plate portion extends forward of the side hook feet and is inserted into the square groove, the bottom of the insert plate portion is provided with a front stop buckle, and the two sides of the assembly slot are provided with side limit recesses adapted to the side hook feet, and the bottom surface of the assembly slot is provided with a first elongated hole for accommodating the front stop buckle; the rear end bottom of the insert plate portion is extended backward with a spring sheet, the bottom of the spring sheet is provided with a rear stop buckle, and the bottom surface of the assembly slot is also provided with a second elongated hole for accommodating the rear stop buckle; there is a gap between the surfaces of the insert plate portion and the spring sheet and the bottom surface of the push plate portion; the surface of the push plate portion is provided with an anti-slip groove.

[0017] The present invention has the following beneficial effects:

[0018] 1. An insertion hole is opened on one side of the front end of the plug rubber core to expose the plug terminal in the plug rubber core, and a gap is formed between the two sides of the plug terminal and the insertion hole for the socket terminal to be inserted. The front end of the socket terminal is designed to form a U-shaped plug-in section that is plugged with the plug terminal after being inserted into the insertion hole, so that the socket terminal on the socket can be inserted from the side to achieve a 90-degree plug-in connection, and the overall structure is simple.

[0019] 2. A plug pressure plate arranged at the plug-in portion and a plug rubber core in the plug shell form a snap-fit ​​structure, so the overall structure is simple and easy to assemble and disassemble.

[0020] 3. After the waterproof ring is directly mounted on the inner ring of the plug-in part, the outer plug pressure plate is used to press it inward and limit it, so that the plug pressure plate is used to realize the fixing function of the first slot in the existing structure. In addition, the installation and disassembly of the waterproof ring can be completed by disassembling the plug pressure plate, which is convenient for its assembly and avoids the problems of difficult processing, high cost and inconvenient installation caused by the need to make deep grooves to engage the waterproof ring in the existing structure. The plug pressure plate is divided into a pressure plate body and an annular belt. The pressure plate body is used to achieve the function of engaging and fixing it with the plug rubber core, and the annular belt is used to achieve the function of pressing and fixing the waterproof ring inward. In addition, the guide grooves symmetrically arranged on the upper and lower walls of the terminal hole are used to guide and limit the plug terminal when it is inserted, so that the front end of the plug terminal is located in the middle position of the insertion hole.

[0021] 4. The U-shaped groove in front of the terminal seat is adapted to the U-shaped plug-in section at the front end of the socket terminal, so as to realize the purpose of electrical connection with the external plug on the inner side of the U-shaped groove. The design of the U-shaped groove increases the contact area during plugging while realizing the electrical connection, thereby improving the overcurrent capacity and connection reliability. In addition, the socket terminal is wrapped in the socket rubber core, avoiding the safety hazards caused by the exposure of the socket terminal and improving the safety; and a positioning strip is provided on the inner wall of the accommodating groove, and the thickness of the positioning strip gradually decreases from the opening of the accommodating groove toward the bottom of the groove. First, it can reduce the installation resistance of the socket terminal and facilitate assembly and disassembly. Second, when the socket terminal is placed in the terminal seat, the terminal can be clamped in reverse to achieve the function of fixing the terminal.

[0022] 5. A U-shaped spring sheet adapted to the U-shaped plug-in section is sleeved thereon, and a plurality of elastic contact sheets are arranged on the inner side of the U-shaped spring sheet, which further improves the connection reliability after the plug is plugged in; in addition, a clamping section is formed between the wiring section and the limit strip, which is used to clamp with the fixed pressure plate, so that the socket terminal and the socket rubber core can be fixed to the socket housing by screws and the fixed pressure plate, reducing the difficulty of assembly.

[0023] 6. An elastic positioning buckle is provided on the inner side of the connecting arm to cooperate with the plug shell to limit its position, thereby avoiding the problem of the handle rotating randomly when it is not locked, and the extension direction of the elastic positioning buckle is the same as the extension direction of the connecting arm, so that after the handle is assembled with the right-angled plug shell, the initial position of the elastic positioning buckle is first engaged with the limiting groove on the second right-angled side, and after the handle is rotated 90 degrees, the elastic positioning buckle is rotated upward to form a limiting engagement with the stepped position on the first right-angled side, that is, the elastic positioning buckle is used to realize the double-point limiting effect when the handle is rotated 90 degrees to open and close; the locking piece is also placed inside the handle body, thereby avoiding the problem of misoperation caused by the existing locking piece being located on the outside of the handle, and the overall strength of the handle is enhanced by using the center slot, thereby avoiding the problem of easy breakage caused by the existing local slots on the middle and outer sides.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, which will become obvious from the following description, or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 is a schematic diagram of a plug in an embodiment;

[0027] Figure 2 is a schematic diagram of another viewing angle of the plug in the embodiment;

[0028] Figure 3 is a cross-sectional schematic diagram of a plug in an embodiment;

[0029] Figure 4 A longitudinal cross-sectional schematic diagram of a plug in an embodiment;

[0030] Figure 5 is a schematic diagram of a handle in an embodiment;

[0031] Figure 6 is a cross-sectional schematic diagram of a handle in an embodiment;

[0032] Figure 7 A longitudinal cross-sectional schematic diagram of a handle in the embodiment;

[0033] Figure 8 is a schematic diagram of a locking member in an embodiment;

[0034] Fig. 9 is a schematic diagram of a plug housing in an embodiment;

[0035] Fig.10 This is a schematic diagram of the plug in the embodiment without the plug pressing plate;

[0036] Fig.11 A schematic diagram of a plug pressing plate in an embodiment;

[0037] Fig.12 A schematic diagram of the plug pressing plate from another perspective in the embodiment;

[0038] Fig.13 for Fig.10 The cross-sectional diagram at the screw position;

[0039] Fig.14 for Fig.13 A is an enlarged schematic diagram;

[0040] Fig.15 It is a schematic diagram of the assembled plug rubber core and plug terminal in the embodiment;

[0041] Fig.16 for Fig.14 Cross-sectional diagram in .

[0042] Fig.17 for Fig.14 Schematic diagram of longitudinal section in;

[0043] Fig.18 for Fig.17 A magnified schematic diagram of B;

[0044] Fig.19 is a schematic diagram of a plug terminal in an embodiment;

[0045] Fig. 20A schematic diagram of a plug rubber core in an embodiment;

[0046] Fig.21 A schematic diagram of the plug rubber core from another perspective in the embodiment;

[0047] Fig. 22 A schematic diagram of a socket in an embodiment;

[0048] Fig.23 This is a schematic diagram of the socket terminal and the fixed pressing plate after being assembled in the embodiment;

[0049] Fig.24 is a schematic diagram of a fixed pressing plate in an embodiment;

[0050] Fig.25 A schematic diagram of a socket rubber core in an embodiment;

[0051] Fig.26 A schematic diagram of the socket rubber core from another perspective in the embodiment;

[0052] Fig. 27 It is a schematic diagram of the socket rubber core and the socket terminal after being assembled in the embodiment;

[0053] Fig.28 is a schematic diagram of the socket terminal and the U-shaped spring piece assembled in the embodiment;

[0054] Fig.29 A schematic diagram of a U-shaped reed in an embodiment;

[0055] Fig.30 A schematic diagram of a plug and a socket connected in an embodiment;

[0056] Fig.31 for Fig.30 Schematic diagram of the longitudinal section. DETAILED DESCRIPTION

[0057] In order to more fully understand the technical content of the present invention, the present invention will be further introduced and explained in conjunction with the accompanying drawings and specific embodiments below; it should be noted that if there are descriptions such as "first", "second", etc. in the text, they are used to distinguish different components, etc., and do not represent the order of precedence, nor do they limit the "first" and "second" to be different types.

[0058] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0059] Example

[0060] like Figures 1 to 31 As shown, a connector shown in this embodiment includes a plug and a socket that are plugged into each other, the plug includes a hollow plug shell 100, two plug rubber cores 120 arranged in parallel in the plug shell 100, a sheet-shaped plug terminal 140 arranged in the plug rubber core 120, and a cable 190 connected to the plug terminal 140 and extending out of the plug shell 100, the plug shell 100 is composed of a first right-angled side 185 and a second right-angled side 186 that are right angles to each other and communicate with each other internally to form a hollow, the plug rubber core 120 is arranged in the first right-angled side 185, and the socket includes a socket shell 3, a socket rubber core 1 arranged on the socket shell 3, and two socket rubber cores 1 arranged in parallel in the socket rubber core 1 The socket terminal 2 on the plug terminal, the plug terminal and the socket terminal are sleeved one by one; an insertion hole 122 with an opening facing the second right-angled side 186 is provided on one side of the front end of the plug rubber core 120, and the front end of the plug terminal 140 is horizontally inserted into the middle of the insertion hole 122 from the side, and gaps are provided between the two side surfaces of the plug terminal 140 and the wall surface of the insertion hole 122 to expose the two side surfaces of the plug terminal, and the front end of the socket terminal 2 is a U-shaped plug-in section 21, which is inserted into the insertion hole 122 and forms a sleeve with the plug terminal 140 to achieve a 90-degree plug-in connection between the plug terminal and the socket terminal; a plug-in portion 103 composed of an inner ring 101 and an outer ring 102 is provided at the end of the second right-angled side 186, and the plug-in portion is used to be plugged with the connector socket, and a plug-in groove 104 is provided between the inner ring 101 and the outer ring 102, and a plug pressing plate 110 engaged with the plug rubber core 120 is mounted on the inner ring 101.

[0061] Specifically, a waterproof ring 105 is sleeved on the outer periphery of the inner ring 101, and a step surface 106 for stopping the waterproof ring 105 is provided on the outer periphery of the inner ring 101 and located on the inner side of the waterproof ring 105. The plug pressing plate 110 includes a pressing plate body 111 which is sleeved in the inner ring 101 and fixed to the plug housing 100 by screws 113, and an annular belt 112 which is sleeved outside the inner ring 101, so that the plug pressing plate 110 forms an inside-outside sleeve structure and is used to respectively achieve different functions. The pressing plate body 111 and the annular belt 112 are connected by a number of connecting pieces 114 integrally formed therewith, and the annular belt 112 abuts against the waterproof ring 105, so that the waterproof ring 105 is limited inside and outside by the step surface 106 and the plug pressing plate 110 respectively, so as to achieve the function of limiting and fixing the waterproof ring inside and outside; in the above, the plug pressing plate is divided into two parts: a pressing plate body and annular belt, the pressing plate body is used to achieve the function of fixing it to the plug housing, and the annular belt is used to achieve the function of pressing and fixing the waterproof ring inward.

[0062] In this embodiment, the outer end of the inner ring 101 is provided with a plurality of positioning bayonet holes 107 for accommodating the connecting piece 114 in a one-to-one correspondence, so that the positioning assembly of the plug pressure plate is realized by utilizing the positioning engagement between the connecting piece and the positioning bayonet hole, which facilitates assembly; two left and right parallelly arranged plug holes 115 corresponding to the insertion holes 122 on the two plug rubber cores are also penetrated on the pressure plate body 111, which are used to expose the plug terminals in the plug shell and insert them into the terminals on the connector socket, and two screw holes 116 located between the two plug holes 115 are penetrated on the pressure plate body 111, which are used to fix it to the plug shell 100 after the screw 113 passes through it.

[0063] Specifically, a first positioning column 117 is protruded from the inner side surface of the pressure plate body 111, and a positioning hole 108 is provided on the plug housing to be plugged into the first positioning column 117, so as to realize the inner positioning of the plug pressure plate and prevent the plug pressure plate from being installed upside down.

[0064] In this embodiment, a plurality of positioning blocks 118 are protruded on the inner side surface of the pressure plate body 111, and a first positioning groove 121 corresponding to the positioning block 118 is recessed at the open end of the insertion hole 122, so that the plug pressure plate is used to realize the engagement and limiting of the plug rubber core, reduce the engagement structure between the plug rubber core and the plug shell, and facilitate the installation and removal of the plug rubber core.

[0065] In this embodiment, the plug also includes an annular spring 130 that is snap-fitted into the outer periphery of the inner ring 101 and located on the outside of the annular band 112, and the outer periphery of the annular spring 130 protrudes from the outer peripheral surface of the inner ring 101; specifically, the outer periphery of the inner ring 101 is provided with an annular groove 109 for accommodating the annular spring 130, and the outer periphery of the annular spring 130 protrudes from the annular groove 109, so that the plug-in part and the connector socket form a tight elastic contact after being plugged in, and the annular spring is used to strengthen the plug-in force between the plug-in part and the connector socket; the connecting piece 114 is provided with a first slot 119 for the annular spring 130 to pass through, and the first slot 119 is a continuous part of the annular groove 109.

[0066] In this embodiment, the plug rubber core 120 is provided with a terminal hole 123 arranged transversely along its length, the insertion hole 122 is connected to the terminal hole 123 and is located at one end of the terminal hole 123, and the end of the terminal hole 123 away from the insertion hole 122 is an opening, that is, the plug terminal 140 is inserted into the terminal hole 123 from the opening, and the front end of the plug terminal is inserted transversely into the insertion hole 122; specifically, the plug terminal assembly also includes a claw 150 arranged in the terminal hole 123, and the plug terminal 140 is provided with a second groove 141 engaged with the claw 150, so that the plug terminal 140 is engaged and fixed in the terminal hole 123, thereby fixing the plug terminal.

[0067] Specifically, the claw 150 includes a sheet-shaped card plate 151 and an elastic buckle 152 arranged in the middle of the card plate 151, the elastic buckle 152 is engaged with the second card groove 141, and the front end of the plug rubber core 120 is provided with a slide groove 124 with an opening at one end, and the two sides of the card plate 151 are arranged in the slide groove 124. The claw is installed into the plug rubber core from the opening of the slide groove 124, which is convenient for its installation and disassembly; in addition, in order to fix the claw 150, a tightening member 153 that presses inward and fixes the card plate 151 is provided at the front end of the plug rubber core 120, and an empty groove 125 for accommodating the tightening member 153 is also provided at the front end of the plug rubber core at the position of the slide groove, and the tightening member 153 is installed in the empty groove 125 by a tight fit.

[0068] Specifically, guide grooves 126 are symmetrically provided in the middle of the upper and lower walls of the terminal hole 123, and the upper and lower sides of the plug terminal are arranged in the guide grooves 126. The guide grooves are used to guide and limit the plug terminal during insertion, so that the front end of the plug terminal after insertion is located in the middle position of the insertion hole.

[0069] In this embodiment, a blocking bar 127 is provided in the middle of the opening of the insertion hole 122 and is located in front of the plug terminal 140. The thickness of the blocking bar 127 is the same as that of the plug terminal 140 and is used as an insulating member to prevent the hand from directly touching the inner plug terminal, thereby improving safety. Two recessed holes 128 are provided on the front end face of the plug rubber core 120 for cooperating with the plug housing 100 to achieve positioning after assembly.

[0070] Specifically, the plug terminal 140 includes a plug-in section 142 whose front end is inserted into the insertion hole 122 and a crimping section 143 whose rear end is connected to the cable. An arc-shaped transition section 144 is also provided between the plug-in section 142 and the crimping section 143, so that there is a turning misalignment between the plug-in section and the crimping section, thereby forming a larger accommodating space between the crimping section and the wall of the terminal hole for accommodating the cable crimped with the crimping section. When the front and rear sections are misaligned so that the plug-in section is located in the middle of the insertion hole and the terminal hole, the aperture of the terminal hole and the size of the plug rubber core can be reduced; the upper and lower sides of the plug-in section 142 both protrude from the arc-shaped transition section 144 and the crimping section 143, and the upper and lower sides of the plug-in section 142 are both arranged in the guide groove 126 to prevent the crimping section from deviating from the middle position of the terminal hole and affecting its cooperation with the guide groove; the second card groove 141 is arranged on the upper side of the front end of the plug-in section.

[0071] like Figures 22 to 29As shown, the front end of the socket housing 3 is provided with a plug interface 31 for plugging with the plug-in portion 103. The utility model comprises a main body 10 and two terminal seats 11 which are arranged at intervals at the front end of the main body 10 and extend forward. A square receiving groove 12 is arranged in the middle of the terminal seat 11 along its extension direction. The receiving groove is used to receive the plug terminal. The opening of the receiving groove 12 is located on the main body 10, that is, the bottom of the receiving groove is located at the front end of the terminal seat. A U-shaped groove 13 which extends into the receiving groove 12 and is connected with the receiving groove is arranged in the middle of the front end of the terminal seat, so that the front end of the terminal seat forms a U-shaped plug-in portion, and the width of the U-shaped groove 13 is smaller than the width of the receiving groove 12, so that there is a certain distance between the two side walls of the receiving groove and the wall of the U-shaped groove, so that stepped grooves are formed on the two inner side walls of the U-shaped groove, which are used to receive the U-shaped plug-in section 21 of the front end of the socket terminal; the socket rubber core 1 extends from the rear end of the socket terminal 2 for connecting with the cable, and the front ends of the two socket terminals 2 are respectively inserted into the receiving groove 12 in a one-to-one correspondence, and the front end of the socket terminal 2 is U The U-shaped plug-in section 21 is formed to expose the inner wall surface of the U-shaped plug-in section, and the U-shaped plug-in section 21 is inserted into the stepped grooves on both sides to form left and right contact parts.

[0072] In this embodiment, the socket also includes a fixed pressing plate 4, which is mounted on the socket terminal 2 and fixed to the socket shell 3 by screws. A groove 15 for accommodating the fixed pressing plate 4 is provided on the main body 10, so that the socket rubber core 1 is fixed to the socket shell 3 by using the fixed pressing plate 4, and the opening of the accommodating groove 12 is located at the bottom of the groove 15.

[0073] Specifically, each wall surface of the accommodating groove 12 is provided with two positioning strips 14 arranged along its extension direction, which are used to tighten the socket terminal placed in the accommodating groove to prevent the socket terminal from loosening, and the positioning strips are used to reduce the friction resistance between the socket rubber core and the socket terminal, so as to facilitate assembly and disassembly; in addition, the thickness of the positioning strip 14 gradually decreases from one end at the opening of the accommodating groove 12 to the other end in the direction of the groove bottom, so that the cross-section of the positioning strip along the extension direction is triangular. The shape of the positioning strip can reduce the installation resistance of the terminal and facilitate assembly and disassembly. Secondly, when the socket terminal is placed in the terminal seat, the socket terminal can be clamped in reverse to achieve the function of fixing the socket terminal.

[0074] Specifically, three second positioning columns 16 are provided on the wall surface of the groove 15 for cooperating with the fixed pressure plate to realize the positioning and assembly of the fixed pressure plate; second positioning grooves 41 corresponding to the second positioning columns 16 are provided on the outer periphery of the fixed pressure plate 4.

[0075] Specifically, two through holes 17 located between the two terminal seats 11 are provided at the bottom of the groove 15 and at the corresponding position of the fixed pressure plate 4, for screws to pass through to fix the socket terminal and the socket rubber core to the socket housing.

[0076] Specifically, a U-shaped spring piece 24 adapted thereto is provided on the U-shaped plug-in section 21, and a plurality of elastic contact pieces 25 are provided on the inner side of the U-shaped spring piece 24, so as to improve the connection reliability after plugging it with the terminal on the plug.

[0077] In this embodiment, the socket terminal 2 includes a U-shaped plug-in section 21 at the front end, a connecting section 22 in the middle and a wiring section 23 at the rear end. A wiring fixing hole 231 is provided on the wiring section 23. Both sides of the connecting section 23 are provided with protruding limit strips 26 at positions close to the wiring section. A clamping stage 27 is formed between the limit strips 26 and the wiring section 23. The fixed pressure plate 4 is mounted on the clamping section 27. In this way, the socket terminal can be further fixed by clamping the fixed pressure plate locked on the socket housing in the clamping section.

[0078] In this embodiment, a slot 42 is provided through the fixed pressure plate 4 for fitting with the clamping section 27, and one side of the slot 42 is an opening structure. The inner side of the opening structure is provided with a buckle 43 for fitting with the end face of the clamping section 27. The opening structure is utilized to facilitate the fitting between the fixed pressure plate and the socket terminal, and the buckle is utilized to clamp the two together.

[0079] In this embodiment, the connector also includes a handle 160 and a locking member 170 provided on the handle 160. The handle 160 includes a handle body 161 and two connecting arms 162 bent at both ends of the handle body 160. The connecting arm 162 is provided with a hinge hole 163 hinged to the hinge shaft 181 on the second right-angled side, and an arc-shaped card groove 164 is provided at one side of the hinge hole 163. Both sides of the plug interface 31 are provided with a card column 32 that cooperates with the arc-shaped card groove 164 and locks. One end of the arc-shaped card groove 164 is located on one side of the hinge hole 163, and the other end is away from the hinge hole 163 and extends to the end position of the connecting arm 162, and a card column 32 that cooperates with the arc-shaped card groove 164 is provided at the end position of the connecting arm 162. The connected first introduction groove 165 is used for inserting the card column on the external socket shell into the arc-shaped card groove. The inner side of the connecting arm 162 is also provided with an elastic positioning buckle 168 located on the upper side of the arc-shaped card groove 164, and the extension direction of the elastic positioning buckle 168 is the same as the extension direction of the connecting arm 162; in the above, by arranging an elastic positioning buckle on the inner side of the connecting arm, it is used to cooperate with the external plug shell to achieve its position limitation, so as to avoid the problem of arbitrary rotation of the handle in the unlocked state, and the extension direction of the elastic positioning buckle is the same as the extension direction of the connecting arm. Both sides of the second right-angled side 186 are provided with limiting grooves 182 engaged with the elastic positioning buckle 168. The surface of the first right-angled side 185 is provided with a stepped position 183 for blocking the elastic positioning buckle 168 after the handle is rotated 90 degrees. The surface of the second right-angled side 186 is also provided with a locking column 184 adapted to the locking member 170.

[0080] Specifically, an assembly slot 166 that is compatible with the locking piece 170 is provided along the length direction of the handle body 161, and the locking piece 170 is slidably arranged in the assembly slot 166. The internal assembly method is used to avoid the problem of misoperation caused by the existing locking piece being located on the outside of the handle. An open groove 167 is provided on the surface of the handle body 161, and one end of the locking piece 170 is located in the open groove 167, so that the locking and opening of the locking piece are controlled by the open groove; a second introduction groove 1661 that is connected to the assembly slot 166 is provided at one end of the handle body 161, which is used for the locking piece to be installed into the handle body from the side. The center slot is used to enhance the overall strength of the handle, and the problem of easy breakage caused by the existing local slots on the middle and outer sides is avoided.

[0081] Specifically, the locking member 170 includes a push plate portion 171, two side hook feet 172 and a plug plate portion 173 arranged parallel to the middle of the two side hook feet 172. The push plate portion 171 is slidably arranged in the opening groove 167, and the two side hook feet 172 are symmetrically arranged at the two sides of the lower part of the push plate portion 173 and extend forward. Two side limit recesses 1662 adapted to the side hook feet 172 are distributed front and back on both sides of the assembly slot 166, which are used for locking the locking member when it slides back and forth in the open position and the locked position respectively. Limitation: The rear end of the plug plate portion 173 is arranged in the middle of the bottom of the push plate portion 171, and the front end of the plug plate portion 173 extends forward to form a side hook foot 172, which is used to lock with the corresponding structure of the external plug shell, thereby realizing the locking of the entire handle. A front stop buckle 174 is provided at the bottom of the plug plate portion 173, and a first elongated hole 1663 for accommodating the front stop buckle 174 is provided on the bottom surface of the assembly slot 166. The front stop buckle and the front and rear ends of the first elongated hole cooperate to limit the travel clearance when the locking member slides back and forth.

[0082] Specifically, a spring piece 175 is extended backward from the bottom of the rear end of the plug plate portion 173, a rear stop buckle 176 is provided at the bottom of the spring piece 175, and a second long hole 1664 for accommodating the rear stop buckle 176 is also provided on the bottom surface of the assembly slot 166, thereby utilizing the front and rear stop buckles to achieve a double travel limit effect.

[0083] Specifically, there are gaps between the surfaces of the plug plate portion 173 and the spring sheet 175 and the bottom surface of the push plate portion 171, so that the plug plate portion 173 and the spring sheet 175 have the characteristic of elastic deformation upward, which can easily disengage the two stoppers from the corresponding long strip holes, thereby facilitating the installation and removal of the locking member.

[0084] In this embodiment, a square groove 1665 is provided at the bottom of the handle body 161 at one end away from the second introduction groove 1661 for accommodating a lock column on the external plug housing. The front end of the plug plate portion 173 is inserted into the square groove 1665 and locked with the lock column.

[0085] Specifically, both sides of the assembly slot 166 are provided with limiting grooves 1666 adapted to the side hook feet 172 for guiding and limiting the locking member; the surface of the push plate portion 171 is provided with anti-slip grooves 177 to facilitate the forward and backward sliding operation of the locking member.

[0086] In this embodiment, the plug also includes a tail cover 191 that is tightly sleeved on the cable 190. The tail cover 191 is buckled with the tail of the first right-angled edge 185 to clamp and lock the cable to prevent the cable from being subjected to external tension that affects the reliability of its connection with the connecting terminal. A sealing ring 192 is also sleeved on the outside of the cable. The sealing ring 192 is located between the plug rubber core 120 and the tail cover 191, and the outer periphery of the sealing ring 192 abuts against the inner wall of the first right-angled edge 185.

[0087] When the plug and the socket are connected, first turn the handle upward so that the first guide groove on the handle is aligned with the card column on the socket, and then slide the card column into the arc-shaped card groove through the first guide groove; at this time, press the handle downward and turn it 90 degrees, and cooperate with the card column through the arc-shaped card groove, and then push the plug into the socket, which brings convenience to use. After confirming that the connection is successful, the locking member can be easily pushed to move as a whole through the push plate part, so that the plug plate part on the locking member cooperates with the lock column bracket, and the left and right side hooks are correspondingly hooked on the side limit recessed position to achieve the purpose of locking, ensure the reliability of the connection, and the connection effect is good. It will not fall off easily, increase the matching stability, and the connection is firm. When pulling out, the locking member is moved in the opposite direction through the push plate part to separate the plug plate part from the lock column. At this time, the handle can be turned upward by 90 degrees, and the arc-shaped card groove cooperates with the card column, and then the plug is pushed back and separated from the socket, which is simple and convenient to use.

[0088] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A connector, comprising a plug and a socket that are plugged into each other, the plug comprising a hollow plug shell, a plug rubber core arranged in the plug shell, a sheet-shaped plug terminal arranged in the plug rubber core, and a cable connected to the plug terminal and extending out of the plug shell, the plug shell is composed of a first right-angled side and a second right-angled side that are at right angles to each other and communicate with each other to form a hollow, the plug rubber core is arranged in the first right-angled side, the socket comprises a socket shell, a socket rubber core arranged on the socket shell, and a socket terminal arranged on the socket rubber core, characterized in that: An insertion hole is provided at one side of the front end of the plug rubber core, which is open toward the second right-angled side. The front end of the plug terminal is laterally inserted into the middle of the insertion hole, and gaps are provided between the two side surfaces of the plug terminal and the wall surface of the insertion hole. The front end of the socket terminal is a U-shaped plug-in section, which is inserted into the insertion hole and sleeved with the plug terminal. The end of the second right-angled side is provided with a plug-in portion composed of an inner ring and an outer ring, a plug-in groove is provided between the inner ring and the outer ring, and a plug pressure plate is mounted on the inner ring, which is engaged with the plug rubber core; a waterproof ring and an annular spring are also mounted on the outer periphery of the inner ring, and a step surface for stopping the waterproof ring is provided on the outer periphery of the inner ring; the plug pressure plate comprises a pressure plate body mounted inside the inner ring and an annular belt mounted outside the inner ring, the pressure plate body is connected to the annular belt through a number of connecting pieces, the annular belt abuts against the waterproof ring, and a number of positioning bayonet sockets for accommodating the connecting pieces in a one-to-one correspondence are provided at the outer end of the inner ring; a plug hole corresponding to the front and rear of the insertion hole is penetrated through the pressure plate body, and the pressure plate body is fixed to the plug housing by screws; the annular spring is located on the outer side of the annular belt, and the outer periphery of the annular spring protrudes from the outer peripheral surface of the inner ring.

2. The connector according to claim 1, characterized in that: The plug rubber core is provided with a terminal hole arranged along its length, the insertion hole is connected to the terminal hole and is located at one end of the terminal hole, the plug terminal is snap-fitted into the terminal hole, and the end of the terminal hole away from the insertion hole is an opening; guide grooves are symmetrically provided on the upper and lower wall surfaces of the terminal hole, and the upper and lower sides of the plug terminal are arranged in the guide grooves; at least one first positioning groove is recessed at the open end of the insertion hole, and a positioning block that is snap-fitted with the first positioning groove in a one-to-one correspondence is protruded on the inner side surface of the pressure plate body; at least one first positioning column is also protruded on the inner side surface of the pressure plate body, and a positioning hole that is inserted into the first positioning column is provided on the plug shell.

3. The connector according to claim 2, characterized in that: The plug also includes a claw arranged in the terminal hole and a tightening member arranged on the plug rubber core and tightening the claw inward, the claw includes a sheet-like clamping plate and an elastic buckle arranged in the middle of the clamping plate, the plug terminal is provided with a second clamping groove engaged with the elastic buckle, the front end of the plug rubber core is provided with a slide groove with one end being open, and the two sides of the clamping plate are arranged in the slide groove; a baffle located in front of the plug terminal is provided in the middle of the opening of the insertion hole, and the thickness of the baffle is the same as the thickness of the plug terminal.

4. The connector according to claim 3, characterized in that: The front end of the socket shell is provided with a plug-in interface for plugging with the plug-in part, the socket rubber core includes a main body and two terminal seats which are spaced apart at the front end of the main body and extend forward to the plug-in interface, the rear end of the socket terminal extends out of the socket rubber core, the front end of the socket terminal is arranged in the terminal seat, and the front end of the terminal seat is provided with a U-shaped groove which cooperates with the U-shaped plug-in section to expose the inner wall surface of the U-shaped plug-in section.

5. The connector according to claim 4, characterized in that: The socket also includes a fixed pressure plate, which is sleeved on the socket terminal and fixed to the socket shell, the main body is provided with a groove for accommodating the fixed pressure plate, the wall surface of the groove is provided with at least one second positioning column, and the outer periphery of the fixed pressure plate is provided with a second positioning groove corresponding to the second positioning column; a square receiving groove is provided in the middle of the terminal seat along its extension direction, the opening of the receiving groove is located at the bottom of the groove, and the width of the U-shaped groove is smaller than the width of the receiving groove; each wall surface of the receiving groove is provided with at least one positioning strip arranged along its extension direction, and the thickness of the positioning strip gradually decreases from the opening of the receiving groove toward the bottom of the groove.

6. The connector according to claim 5, characterized in that: The socket terminal includes a U-shaped plug-in section at the front end, a connecting section in the middle and a wiring section at the rear end, both sides of the connecting section are protruded with limit strips, a clamping section is formed between the limit strip and the wiring section, a clamping groove which is fitted with the clamping section is penetrated through the fixed pressure plate, and one side of the clamping groove is an open structure, and a buckle which is buckled with the clamping section is provided on the inner side of the opening structure; a U-shaped spring sheet which is adapted to the U-shaped plug-in section is sleeved on the U-shaped spring sheet, and a plurality of elastic contact sheets are provided on the inner side of the U-shaped spring sheet.

7. The connector according to claim 6, characterized in that: The plug also includes a handle and a locking piece arranged on the handle, the handle includes a handle body and connecting arms bent at two ends of the handle body, the connecting arm is provided with a hinge hole hinged to the second right-angled side, an arc-shaped slot is provided at one side of the hinge hole, and clamping columns matching the arc-shaped slot are provided on both sides of the plug interface, one end of the arc-shaped slot is located on one side of the hinge hole, and the other end extends to the end position of the connecting arm, the end position of the connecting arm is provided with a first introduction groove connected to the arc-shaped slot, an elastic positioning buckle is also provided on the inner side of the connecting arm, and the extension direction of the elastic positioning buckle is the same as the extension direction of the connecting arm, both sides of the second right-angled side are provided with limiting grooves engaged with the elastic positioning buckle, the surface of the first right-angled side is provided with a stepped position for blocking with the elastic positioning buckle after the handle is rotated 90 degrees, and the surface of the second right-angled side is also provided with a locking column adapted to the locking piece.

8. The connector according to claim 7, characterized in that: An assembly slot adapted to the locking piece is provided in the handle body along its length direction, a second introduction slot connected to the assembly slot is provided at one end of the handle body, and a square slot is provided at the bottom of the end of the handle body away from the second introduction slot; the locking piece is slidably arranged in the assembly slot, an open slot is provided on the surface of the handle body, and one end of the locking piece is located in the open slot.

9. The connector according to claim 8, characterized in that: The locking member comprises a push plate portion, two side hook feet and an insert plate portion placed between the two side hook feet, the push plate portion is slidably arranged in the open groove, the two side hook feet are symmetrically arranged at the two side positions of the lower side of the push plate portion and extend forward; the rear end of the insert plate portion is arranged in the middle of the bottom of the push plate portion, the front end of the insert plate portion extends forward of the side hook feet and is inserted into the square groove, the bottom of the insert plate portion is provided with a front stop buckle, the two sides of the assembly slot are provided with side limit recesses adapted to the side hook feet, and the bottom surface of the assembly slot is provided with a first elongated hole for accommodating the front stop buckle; the rear end bottom of the insert plate portion is extended backward with a spring sheet, the bottom of the spring sheet is provided with a rear stop buckle, and the bottom surface of the assembly slot is also provided with a second elongated hole for accommodating the rear stop buckle; there is a gap between the surfaces of the insert plate portion and the spring sheet and the bottom surface of the push plate portion; the surface of the push plate portion is provided with an anti-slip groove.

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