A combined connector

Abstract

The present invention discloses a combined connector, including a fixed seat, on which at least one large current module, at least one small current module and at least one signal module are arranged; the large current module includes a cable and a copper busbar assembly respectively inserted on both sides of the fixed seat, and one end of the cable is provided with a wire nose connected to the copper busbar assembly; the small current module includes a first plug and a second plug respectively inserted on both sides of the fixed seat, and the first plug and the second plug are correspondingly plugged; the signal module includes a first signal plug and a second signal plug respectively inserted on both sides of the fixed seat, and the first signal plug and the second signal plug are correspondingly plugged. The combined connector composed of current modules and signal modules of different sizes in the present invention can meet the demand for combined connectors of complete sets of control equipment, so as to solve the situation that when the connector is used in a cabinet or a box, the active end of the connector is independently plugged according to the function of the electrical system.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a combined 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] In the fields of automation and electrical matching, connectors are widely used for circuit connections of power equipment, complete sets of instruments, and electrical equipment. Due to the different usage scenarios, the installation requirements and combination methods of connectors need to meet various environmental needs; especially the complete sets of equipment have an outstanding demand for combined connectors for primary large current, secondary control small current, and signal control, and require that the use end of the connector can be independently plugged in according to demand. At present, most connector combinations are assembled with independent structures, and their integrity is unsatisfactory. The splicing is not firm, the strength is not high, the structure is complex, the cost is high, and it occupies a large space, especially when used in a cabinet or box, which requires a small space, simple operation, and low cost.

[0004] At present, current-carrying connectors usually connect external cables through connecting terminals (such as power terminals and signal terminals, etc.) to achieve power supply; existing high-current connectors are generally connected through sockets and plugs that are plugged into each other. First, the sockets and plugs are independent components and have a certain size. When the connector and the installation space are very small, it is inconvenient to install the sockets and plugs, and the overall installation structure is complicated. Second, the connection between the two is generally achieved by connecting terminals. Due to the overcurrent capacity of the connecting terminals, it is not suitable for the current increasingly large overcurrent requirements. Third, the general plug-in relationship cannot meet the stability, firmness and tightness requirements required when using copper busbars for overcurrent.

[0005] Existing low-current connectors are generally connected by two plugs that are plugged into each other. When a plug needs to be fixed on an external fixing seat and then installed together with the corresponding external device, a slot or buckle is generally set on the inner wall of the fixing seat, and then a matching buckle or slot is set on the outer periphery of the corresponding plug to achieve assembly of the plug and the fixing seat; in this assembly structure, firstly, corresponding slots or buckles need to be set on both the fixing seat and the plug, resulting in a complex structure and inconvenience in parts processing, and the assembly process is cumbersome and difficult; secondly, the locking structure is easily affected by external forces and affects the firmness and reliability of the plug; in addition, the two existing plugs are basically just simple plug-in structures, and there is generally no locking structure after plugging, the plug-in reliability is low, and it is easy to be affected by external forces and affect the plug-in effect, thereby affecting its overcurrent performance and connectivity. Summary of the invention

[0006] In view of the above-mentioned existing technical defects, the present invention provides a combined connector composed of current modules and signal modules of different sizes, which is used to meet the needs of complete sets of control equipment for combined connectors, so as to solve the problem that when the connector is used in a cabinet or a box, the active end of the connector is independently plugged in according to the function of the electrical system.

[0007] In order to solve the above technical problems, the present invention provides a combined connector, including a fixed seat, on which at least one large current module, at least one small current module and at least one signal module are provided; the large current module includes cables and copper busbar assemblies respectively inserted on both sides of the fixed seat, and one end of the cable is provided with a wire nose connected to the copper busbar assembly; the fixed seat is provided with an installation cabin with an opening on the outside and a cabin cover sealed on the installation cabin, the fixed seat is also integrally formed with an insertion portion for the cable to be inserted into the installation cabin from the side, the bottom of the installation cabin is also penetrated by a through hole for the copper busbar assembly to be inserted, and the wire nose is arranged in the installation cabin, and one end of the wire nose is fixed to one end of the copper busbar assembly by a locking member; the small current module includes a first plug and a second plug respectively inserted on both sides of the fixed seat, and the first plug and the second plug are correspondingly plugged; the signal module includes a first signal plug and a second signal plug respectively inserted on both sides of the fixed seat, and the first signal plug and the second signal plug are correspondingly plugged.

[0008] Furthermore, the combined connector also includes a fixing sleeve arranged in the installation cabin, the fixing sleeve includes a main body with a cavity, a longitudinal portion arranged at the bottom of the main body and passing downward through the through hole, and a transverse portion arranged at one side of the main body and inserted into the insertion portion, the outer side of the cavity is an opening, the longitudinal portion is penetrated by a slot for inserting one end of the copper busbar assembly into the cavity, and the transverse portion is penetrated by an insertion hole for inserting one end of the cable into the cavity.

[0009] Furthermore, a support platform is protruded in the middle of the bottom of the cavity, and the slot is arranged on one side of the support platform; the copper busbar assembly includes a busbar located outside the fixed seat and a transfer copper busbar detachably arranged at one end of the busbar; the transfer copper busbar is right-angled or inverted J-shaped, one end of which is passed through the slot up and down and connected to the busbar, and the other end is placed on the top of the support platform and abuts against the surface of the support platform; the locking member includes a bolt and a nut buried in the support platform, the bolt passes downward through the wire nose and the transfer copper busbar in turn and is fixedly connected to the nut to lock the wire nose and the copper busbar assembly; the locking member also includes a spring washer and a gasket arranged between the bolt and the wire nose in turn.

[0010] Furthermore, the combined connector also includes a sealing cover arranged on the main body, the outer surface of the sealing cover is protruded with a plurality of support points, the support points abut against the inner surface of the hatch, and the inner surface of the sealing cover is protruded with a tightening column for tightening the bolt downward.

[0011] Furthermore, a first mounting hole is provided on the fixing seat from front to back, and the first plug includes a first shell fixed in the first mounting hole by injection molding, a first rubber core engaged in the first shell, a first cable arranged at one end in the first shell, and a first pin crimped to the end of the first cable and engaged in the first rubber core; the second plug includes a second shell inserted in the first mounting hole at one end, a second rubber core engaged in the second shell, a second cable arranged at one end in the second shell, and a first jack terminal crimped to the end of the second cable and engaged in the second rubber core, and the jack terminal is plugged into the pin.

[0012] Furthermore, the two side surfaces of the fixing seat are respectively raised with a first boss and a second boss corresponding to each other, the first mounting hole is arranged in the middle of the first boss and the second boss from front to back, the first shell is fixedly connected with the first boss by snapping, the inner end of the first shell is provided with a first plug-in portion extending forward into the second boss, one end of the first pin extends into the first plug-in portion, one end of the second shell is inserted into the second boss and arranged around the first plug-in portion, and one end of the second rubber core is inserted into the first plug-in portion to enable the first socket terminal and the first pin to be plugged in.

[0013] Furthermore, a ring with a right-angled cross-section is provided on the inner wall of the outer end of the first boss, and a groove matching the shape of and sleeved with the ring is provided on the outer periphery of the first shell; a stop step is indented on the inner wall of the outer end of the second boss, and a first stop portion cooperating with the stop step is radially provided on the outer periphery of the second shell, and a second stop portion abutting against the outer end face of the second boss is also radially provided on the outer periphery of the second shell.

[0014] Furthermore, a buckle is provided on the second boss, and the second plug also includes a locking assembly arranged on the outside of the second shell and engaged with the buckle, and a mounting groove for installing the locking assembly is provided on the second shell; the locking assembly includes a lever arm rotatably arranged in the mounting groove and a sliding member slidably arranged in the mounting groove, one end of the lever arm is provided with a bayonet engaged with the buckle, the other end of the lever arm is inserted into the sliding member, and a spring is provided between the end of the lever arm and the sliding member, a positioning portion is respectively protruded on both sides of the sliding member, and a limit platform for supporting the positioning portion is protruded on the inner wall of the end of the mounting groove away from the buckle.

[0015] Furthermore, a first shielding ring, a waterproof ring and a tail buckle are sequentially provided between the cable and the insertion part from the inside to the outside, and the outer side of the tail buckle is buckled with the insertion part; a first waterproof ring and a first tail buckle are sequentially provided between the first cable and the first shell from the inside to the outside, and the first tail buckle is buckled with the first shell, at least one introduction hole is penetrated through the first waterproof ring, and a pressure column is provided on the inner side surface of the first tail buckle, which is inserted into the introduction hole and presses the first rubber core forward; a second waterproof ring and a second tail buckle are sequentially provided between the second cable and the second shell from the inside to the outside, and the second tail buckle is buckled with the second shell; a second shielding ring is provided between the second cable and the second rubber core.

[0016] Furthermore, the fixing base is also provided with a second mounting hole extending through the front and rear sides, the first signal plug includes a third shell inserted into the second mounting hole, a plurality of signal pins snap-fitted into the third shell, and a plurality of first signal wires having one end arranged in the third shell and connected one-to-one with the signal pins; the second signal plug includes a fourth shell inserted into the second mounting hole, a plurality of signal terminals snap-fitted into the fourth shell, and a plurality of second signal wires having one end arranged in the fourth shell and connected one-to-one with the signal terminals, and the signal terminals are plugged into the signal pins.

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

[0018] 1. A large current module, a small current module and a signal module are arranged on a fixed seat at the same time to meet the demand of a complete set of control equipment for a combined connector, so as to solve the situation that when the connector is used in a cabinet or a box, the active end of the connector is independently plugged in according to the function of the electrical system; in addition, the large current module, the small current module and the signal module are all independent integral structures with independent guide modules. Through their respective independent installation settings, different connection relationships between the large current module, the small current module and the signal module and the fixed seat are realized, and the overall structure is simple and compact; in addition, through the insertion part for inserting the cable integrally formed on the fixed seat, the cable can be directly inserted into the installation cabin and connected with the copper bus, which simplifies the installation structure and improves the overcurrent capacity. It has the characteristics of simple structure, low cost, and easy assembly and disassembly.

[0019] 2. For high-current modules, the opening structure of the installation cabin can be used to directly fix the copper busbar and the wire nose on the cable together with the locking parts after the cable is inserted. The assembly process is simple and convenient, and the locked connection structure can meet the stability, firmness and tightness requirements required when the copper busbar is used for overcurrent. The copper busbar assembly is divided into two parts: the busbar and the transfer busbar. The right-angle or inverted J-shaped structure of the transfer busbar and the matching support platform are used. First, the transfer busbar can be conveniently inserted into the fixed sleeve and set on the support platform, and then the wire nose is inserted into the cavity and is just horizontally located above the support platform and the transfer busbar. Then the transfer busbar and the wire nose are locked by the locking parts to realize the installation and fixation of the transfer busbar. Second, it can be connected to the busbar after passing through the fixed sleeve through the slot. This can facilitate the fixation and connection assembly between the copper busbar assembly, the fixed sleeve and the wire nose.

[0020] 3. A sealing cover abutting the hatch cover is arranged at the opening of the fixing sleeve, and the tightening force of the hatch cover is used to tighten the sealing cover and the fixing sleeve to form an inner sealing structure, while the sealing structure between the hatch cover and the installation cabin is an outer sealing structure, thereby forming a double sealing structure for the opening, which improves the sealing and safety; a tightening column for tightening the bolt inward is also arranged on the inner side of the sealing cover, so that the bottom surface of the transfer copper busbar can be tightly attached to the surface of the support platform and the locking piece can be kept in a locked state, ensuring that the position of the wire nose and the transfer copper busbar will not be offset or loosened, and avoiding the loosening problem caused by the spiral retreat of the bolt due to the force during use; in addition, a spring washer is arranged between the bolt and the wire nose to ensure close contact between the transfer copper busbar and the wire nose, thereby improving the electrical performance of the connection structure.

[0021] 4. For the low current module, the first shell is fixed on the fixing seat by injection molding, so that the other components of the first plug can be directly installed in the first shell in sequence. Firstly, it simplifies the installation process and installation structure of the first plug, and secondly, it ensures the firmness and reliability between the first plug and the fixing seat. It also has the characteristics of simple structure, low cost and easy assembly.

[0022] 5. The first plug fixes the rubber core by pressing the tail buckle inward to tighten the first rubber core, that is, there is no need to design a clamping fixing structure between the first rubber core and the first shell, which simplifies the design of the first shell and the first rubber core, facilitates the injection molding of the first shell, and the overall assembly structure is simple and convenient; the first stopper and the second stopper on the second shell are designed to form a double stop structure, which ensures that the second plug is inserted in place while preventing it from being excessively forward and squeezing the first plug.

[0023] 6. A locking structure for locking the second plug is provided between the second boss and the second plug, so as to improve the structural reliability of the first plug and the second plug after being plugged in, and avoid the plugging effect being affected by the action of external force. In addition, the second plug is locked or unlocked by the cooperation of the sliding member and the lever arm, and the overall structure and operation process are simple. When locking, the sliding member is compressed to the end of the mounting groove by the spring, and at this time, the positioning part on the sliding member and the limit platform in the mounting groove cooperate up and down, so that the bayonet on the other end of the lever arm is stuck on the buckle. When unlocking, the sliding member needs to be pushed forward to make the positioning part disengage from the limit platform forward, and then the sliding member is pressed downward to lift the other end of the lever arm, that is, the lever arm and the buckle are separated to realize the unlocking of the second plug.

[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 Schematic diagram of a combined connector in an embodiment

[0027] Figure 2 This is a schematic diagram of the combined connector in the embodiment after removing the low current module and the signal module;

[0028] Figure 3 for Figure 2 The cross-sectional view of the corresponding high current module;

[0029] Figure 4 for Figure 2 The longitudinal cross-sectional view of the corresponding high current module;

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

[0031] Figure 6 is a schematic diagram of a fixing sleeve in an embodiment;

[0032] Figure 7 is a top view of the fixing sleeve in the embodiment;

[0033] Figure 8 A schematic diagram of a copper busbar assembly in an embodiment;

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

[0035] Fig.10 is a schematic diagram of a locking assembly in an embodiment;

[0036] Fig.11 A Y-direction cross-sectional view of the combined connector at the corresponding low current module in the embodiment;

[0037] Fig.12 for Figure 4 A is an enlarged schematic diagram;

[0038] Fig.13 for Figure 4 A magnified schematic diagram of B;

[0039] Fig.14 It is an X-direction cross-sectional view of the combined connector in the embodiment at the corresponding low current module;

[0040] Fig.15 for Figure 7 A magnified schematic diagram of middle C;

[0041] Fig.16 It is a Y-direction cross-sectional view of the combined connector at the corresponding signal module in the embodiment. DETAILED DESCRIPTION

[0042] 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.

[0043] 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.

[0044] Example

[0045] like Figures 1 to 16 As shown, a combined connector shown in this embodiment includes a plate-shaped fixing seat 1 fixed to an external device by screws, and a large current module, two small current modules arranged in front of the large current module, and a signal module located on the right side of the small current module are provided on the fixing seat 1; the small current module includes a first plug 100 and a second plug 200 respectively inserted on both sides of the fixing seat 1, and the first plug 100 and the second plug 200 are correspondingly plugged; the signal module includes a first signal plug 500 and a second signal plug 600 respectively inserted on both sides of the fixing seat, and the first signal plug 500 and the second signal plug 600 are correspondingly plugged; the large current module includes a cable 2 and a copper busbar assembly 3 respectively inserted on both sides of the fixing seat 1, and one end of the cable 2 is crimped with a wire nose 2 connected to the copper busbar assembly 3 1; an installation cabin 11 with an opening structure and a hatch cover 12 sealed and covered on the opening of the installation cabin 11 by screws are raised on the outer side surface of the fixing base 1, and a sealing ring 13 arranged around the opening is provided between the hatch cover and the installation cabin to seal the cabin space inside the installation cabin 11; an insertion portion 14 for inserting cables into the installation cabin from the side is also integrally formed on the outer side surface of the fixing base 1, that is, a plug hole connected to the installation cabin is penetrated in the middle of the insertion portion, and a through hole 15 for inserting one end of the copper busbar assembly 3 is also penetrated at the bottom of the installation cabin 11, that is, the extension direction of the through hole is arranged at a right angle of 90 degrees to the extension direction of the plug hole, so as to realize a 90-degree transfer between the cable and the copper busbar assembly, and a wire nose 21 is arranged in the installation cabin 11, and one end of the wire nose 21 is fixed to one end of the copper busbar assembly 3 by a locking member.

[0046] In the above, by integrally forming an insertion portion for inserting the cable on the fixing seat, the cable can be directly inserted into the installation cabin and then connected to the copper busbar, which simplifies the installation structure and improves the overcurrent capacity. It has the characteristics of simple structure, low cost, and easy assembly and disassembly. The opening structure of the installation cabin is also utilized, and after the cable is inserted, the copper busbar and the wire nose on the cable can be directly fixed together by a locking piece. The assembly process is simple and convenient, and the locked connection structure can meet the requirements of stability, firmness and tightness required when using the copper busbar for overcurrent.

[0047] In this embodiment, the fixing seat is made of metal integral molding. In order to prevent the fixing seat from being energized, the copper busbar assembly and the wire nose need to be separated. Therefore, the combined connector also includes a fixing sleeve 4 arranged in the installation cabin. Another function of the fixing sleeve is to fix the copper busbar assembly. The specific fixing structure is as follows:

[0048] The fixing sleeve 4 comprises a main body 41 with a cavity 40, a longitudinal portion 42 arranged at the bottom of the main body 41 and passing downward through the through hole 15, and a transverse portion 43 arranged at one side of the main body 41 and inserted into the insertion portion 14. The outer periphery of the main body is in close contact with the inner surface of the installation chamber, so that after the fixing sleeve is pressed into the installation chamber, the longitudinal portion and the transverse portion are used to form transverse and longitudinal limiting and fixing of the fixing sleeve; the upper side of the cavity is open, and a slot 421 for inserting one end of the copper busbar assembly 3 into the cavity is penetrated on the longitudinal portion 42, and an insertion hole 431 for inserting one end of the cable 2 into the cavity is penetrated on the transverse portion 43; a support platform 44 is also protruded in the middle of the bottom of the cavity, and the slot 421 is arranged on one side of the support platform 44; the copper busbar assembly 3 comprises a busbar 31 located outside the fixing seat 1 and a transfer copper busbar 32 detachably arranged at one end of the busbar 31 by screws; Figure 3 As shown, the transfer copper bus 32 is in an inverted J shape, one end of which is vertically inserted into the slot 421 and connected to one end of the busbar 31, and the other end is mounted on the top of the support platform 44 by a buckle assembly and abuts against the surface of the support platform 44; the copper busbar assembly is divided into two parts, the busbar and the transfer copper busbar. By using the right-angle structure of the transfer copper busbar and the matching support platform, the transfer copper busbar can be conveniently inserted into the fixed sleeve and mounted on the support platform, and then the wire nose is inserted into the cavity and is horizontally located above the support platform and the transfer copper busbar, and then the transfer copper busbar and the wire nose are locked by a locking member (such as Figure 3 As shown), the copper busbar can be installed and fixed. Secondly, the fixing sleeve can be passed out through the slot to connect with the busbar. This makes it easy to fix and connect the copper busbar assembly with the fixing sleeve and the wire nose.

[0049] Specifically, the locking part includes a bolt 33 and a nut 34 buried in the support platform 44. The bolt 33 passes through the wire nose 21 and the adapter copper bus 32 downward in sequence and is fixedly connected with the nut 34 to lock the wire nose and copper bus assembly, and the embedded nut is used to lock the adapter copper bus and the wire nose on the support platform, and the position remains unchanged. As for the locking and removal of the bolt, it is directly operated after opening the hatch, and the overall installation process is simple and convenient.

[0050] It can be understood that in order to increase the locking force, the locking device also includes a spring washer 35 and a gasket 36 which are arranged between the bolt 33 and the wire nose 21 in sequence. Through the elastic tightening force of the spring washer, it can prevent the bolt from loosening and further ensure the close contact between the transfer copper busbar and the wire nose. The gasket is used to expand the contact area of ​​the bolt pressing down.

[0051] In this embodiment, in order to improve the sealing performance of the installation cabin, a double sealing structure with two layers inside and outside is adopted for the cavity in the fixed sleeve. One of them is the sealing structure between the cabin cover and the installation cabin, which serves as the outer sealing structure; the inner sealing structure is realized by adding a covering sealing cover 45 to the main body 41. A plurality of supporting points 451 are convexly provided on the outer surface of the sealing cover 45, and the supporting points 451 abut against the inner side surface of the cabin cover 12, so that the tightening force of the cabin cover is used to tighten the contact surface between the sealing cover and the fixed sleeve to form an inner sealing structure, thereby improving the sealing performance and safety.

[0052] Specifically, a tightening column 452 for tightening the bolt 33 downward is provided on the inner side surface of the sealing cover 45, so that the bottom surface of the adapter copper busbar can be tightly attached to the surface of the support platform and the locking part can be kept in a locked state, ensuring that the positions of the wire nose and the adapter copper busbar are not offset or loose, and avoiding the loosening problem caused by the spiral retreat of the bolt due to force during use. In addition, a spring washer is arranged between the bolt and the wire nose to ensure close contact between the adapter copper busbar and the wire nose, thereby improving the electrical performance of the connection structure.

[0053] In this embodiment, a first shielding ring 15, a waterproof ring 16 and a tail buckle 17 are provided between the cable 2 and the insertion part 14 from the inside to the outside. The waterproof ring is used to seal the plug hole of the insertion part. The outer side of the tail buckle 17 is buckled with the insertion part, and the inner periphery is pressed tightly against the outer periphery of the cable, thereby fixing the cable and preventing the internal connection structure from being affected by the lateral tensile force of the cable.

[0054] It can be understood that in the low current module, the first plug 100 includes a first shell 101 fixed in the first mounting hole 10 by injection molding, a first cable 102 at one end arranged in the first shell 101, and a first pin 103 crimped at the end of the first cable 102 and engaged in the first shell 101; the second plug 200 includes a second shell 201 at one end inserted in the first mounting hole 10, a second cable 202 at one end arranged in the second shell 201, and a first socket terminal 203 crimped at the end of the second cable 202 and engaged in the second shell 201, and the socket terminal is plugged with the pin; a buckle 300 is also provided on the fixing seat 1, and the second plug 200 also includes a locking assembly 400 provided on the outside of the second shell 201 and buckled with the buckle 300.

[0055] In the above, the first shell is fixed to the fixing base by injection molding, so that the other components of the first plug can be directly installed in the first shell in sequence. Firstly, the installation process and installation structure of the first plug are simplified, and secondly, the firmness and reliability between the first plug and the fixing base are ensured. It also has the characteristics of simple structure, low cost and easy assembly. In addition, the second plug is locked by the buckle on the fixing base, so that the second plug and the first plug are well plugged in and are not affected by external forces.

[0056] The specific locking structure is as follows: a first boss 301 and a second boss 302 corresponding to each other are respectively protruded on the two side surfaces of the fixing seat 1, the first mounting hole 10 is arranged in the middle of the first boss 301 and the second boss 302, the first shell 101 is fixedly connected with the first boss 301 by snapping, and the buckle 300 is arranged on the outer side of the second boss 302, and the second shell 201 is recessed with a mounting groove 204 for mounting the locking assembly; the locking assembly 400 includes a lever arm 401 which is rotatably arranged in the front end of the mounting groove 204 and a sliding member 402 which is slidably arranged in the mounting groove 204, the front end of the lever arm 401 extends forward and is provided with a bayonet 403 which is buckled with the buckle 300, and the other end of the lever arm 401 is inserted into the sliding member 402, that is, the sliding member 402 can slide forward and backward along the lever arm, and the lever arm 401 is provided with a plurality of locking members, and the locking member 402 ... A spring 404 is provided between the end of the arm 401 and the sliding member 402, that is, the sliding member is located at the rear end of the mounting groove by the action of the spring, and a positioning portion 405 is respectively provided on both sides of the sliding member 402, and a limiting platform 406 for symmetrically supporting the positioning portion 405 is provided on the inner wall of the end of the mounting groove 204 away from the buckle 300 (that is, the rear end of the mounting groove); the use process of the locking assembly is as follows: when locking, the sliding member is compressed to the rear end of the mounting groove by the spring, and at this time, the positioning portion on the sliding member and the limiting platform in the mounting groove cooperate up and down, so that the bayonet on the other end of the lever arm is clamped on the buckle; when unlocking, the sliding member needs to be pushed forward to make the positioning portion move forward away from the limiting platform, and then the sliding member is pressed downward to lift the other end of the lever arm, that is, the lever arm and the buckle are separated to realize the unlocking of the second plug.

[0057] In this embodiment, a ring buckle 303 with a right angle cross section is provided on the inner wall of the outer end of the first boss 301, and a slot 104 (such as Fig.13 As shown), the socket connection method of this structure generally cannot be installed by assembling parts, so the first shell needs to be directly injection molded on the fixing seat by injection molding. After the two are combined, the first shell cannot be disassembled, and the assembly structure is firm.

[0058] In this embodiment, the first plug 100 further includes a first rubber core 105 which is engaged in the first shell 101, and the first pin 103 is engaged in the first rubber core 105; a first waterproof ring 106 and a first tail buckle 107 are sequentially arranged between the first cable 102 and the first shell 101 from the inside to the outside, and the first waterproof ring is used to seal the interior of the first shell, and the first tail buckle 107 is engaged with the first shell 101, and the inner periphery of the tail buckle is pressed against the outer periphery of the cable, so as to fix the cable and prevent the internal connection structure from being affected by the lateral tensile force of the cable; at least one introduction hole 108 is penetrated through the first waterproof ring 106, and a pressure column 109 which is inserted into the introduction hole 108 and presses the first rubber core 105 forward is provided on the inner side surface of the first tail buckle 107, and the rubber core is fixed by the tail buckle pressing the first rubber core inwardly, that is, there is no need to design a clamping fixing structure between the first rubber core and the first shell, which simplifies the design of the first shell and the first rubber core, facilitates the injection molding of the first shell, and the overall assembly structure is simple and convenient.

[0059] Specifically, a first plug-in portion 110 extending forward into the second boss 302 is provided at the inner end of the first shell 101, one end of the first pin 103 extends to the middle of the first plug-in portion 110, and one end of the second shell 201 is inserted into the second boss 302 and arranged around the first plug-in portion 110.

[0060] In this embodiment, the second plug 200 also includes a second rubber core 205 that is snap-fitted into the second shell 201, the first jack terminal 203 is snap-fitted into the second rubber core 205, and one end of the second rubber core 205 is inserted into the first plug-in portion 110 so that the first jack terminal 203 and the first pin 103 are plugged in; a second waterproof ring 206 and a second tail buckle 207 are sequentially arranged between the second cable 202 and the second shell 201 from the inside to the outside, and the interior of the second shell is sealed by the second waterproof ring. The second tail buckle 207 is snap-fitted into the second shell 201, and the inner periphery of the tail buckle is pressed tightly against the outer periphery of the cable, thereby fixing the cable and preventing the internal connection structure from being affected by the lateral tensile force of the cable; a second shielding ring 208 is provided between the second cable 202 and the second rubber core 205.

[0061] Specifically, a stop step 304 is indented on the inner wall of the outer end of the second boss 302, and a first stop portion 209 cooperating with the stop step 304 is radially provided on the outer periphery of the second shell 201. A second stop portion 210 abutting against the outer end surface of the second boss 302 is also radially provided on the outer periphery of the second shell 201, forming a double stop structure, which ensures that the second plug is inserted into place while preventing it from being excessively forward and squeezing the first plug.

[0062] Specifically, the outer periphery of the second shell 201 is recessed with an annular groove 211 for installing a waterproof ring 212, and the waterproof ring is located between the first stop portion 209 and the second stop portion 210, and the waterproof ring abuts against the inner wall of the second boss 302, so that after the second plug is plugged into the fixed seat, the waterproof ring is used to seal the plug interface.

[0063] In this embodiment, for the signal module, a second mounting hole 700 is also provided on the fixing base 1 from front to back, and the first signal plug 500 includes a third shell 501 inserted into the second mounting hole 700, a plurality of signal pins 502 separated and engaged in the third shell 501, and a plurality of first signal wires (not shown in the figure) having one end disposed in the third shell 501 and connected one-to-one with the signal pins 502, wherein the front end of the signal pin 502 protrudes forward from the third shell; the second signal plug 600 includes a fourth shell 601 inserted into the second mounting hole 700, a plurality of signal terminals 602 engaged in the fourth shell 601, and a plurality of second signal wires 603 having one end disposed in the fourth shell 601 and connected one-to-one with the signal terminals 602, and the front end of the signal pin is inserted into the second signal plug and plugged with the signal terminal to realize signal connection.

[0064] In other embodiments, the transfer copper busbar can also be designed as a right-angle shape, with one right-angle side passing through the slot up and down, and the outer end of the right-angle side connected to the busbar, and the other right-angle side horizontally placed on the top of the support platform and abutting against the surface of the support platform.

[0065] 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 combined connector, comprising a fixing seat, characterized in that: The fixing seat is provided with at least one high-current module, at least one low-current module and at least one signal module; the high-current module comprises cables and copper busbar assemblies respectively inserted on both sides of the fixing seat, and one end of the cable is provided with a wire nose connected to the copper busbar assembly; the fixing seat is provided with an installation cabin with an opening on the outside and a cabin cover sealed on the installation cabin, the fixing seat is also integrally formed with an insertion portion for the cable to be inserted into the installation cabin from the side, the bottom of the installation cabin is also penetrated with a through hole for the copper busbar assembly to be inserted, and the wire nose is arranged in the installation cabin, and one end of the wire nose is fixed to one end of the copper busbar assembly by a locking piece; the low-current module comprises cables and copper busbar assemblies respectively inserted in The first plug and the second plug are provided on both sides of the fixing seat, and the first plug and the second plug are plugged in correspondingly; the signal module comprises a first signal plug and a second signal plug respectively plugged in on both sides of the fixing seat, and the first signal plug and the second signal plug are plugged in correspondingly; the combined connector also comprises a fixing sleeve provided in the installation cabin, the fixing sleeve comprises a main body with a cavity, a longitudinal part provided at the bottom of the main body and passing downward through the through hole, and a transverse part provided at one side of the main body and inserted into the insertion part, the outer side of the cavity is an opening, a slot is provided through the longitudinal part for inserting one end of the copper bar assembly into the cavity, and an insertion hole is provided through the transverse part for inserting one end of the cable into the cavity; A support platform is also protruded in the middle of the bottom of the cavity, and the slot is arranged on one side of the support platform; the copper busbar assembly includes a busbar located outside the fixing seat and a transfer copper busbar detachably arranged at one end of the busbar; the transfer copper busbar is in a right angle or inverted J shape, one end of which is passed through the slot up and down and connected to the busbar, and the other end is placed on the top of the support platform and abuts against the surface of the support platform; the locking member includes a bolt and a nut buried in the support platform, the bolt passes through the wire nose and the transfer copper busbar in turn downward and is fixedly connected with the nut to lock the wire nose and the copper busbar assembly; the locking member also includes a spring washer and a gasket which are arranged between the bolt and the wire nose in turn; The combined connector also includes a sealing cover arranged on the main body, and a plurality of supporting points are protruded on the outer surface of the sealing cover, and the supporting points abut against the inner surface of the hatch, and a tightening column is protruded on the inner surface of the sealing cover to tighten the bolt downward.

2. The combined connector according to claim 1, characterized in that: The fixing seat is provided with a first mounting hole extending through the front and rear sides thereof, and the first plug comprises a first shell body fixed in the first mounting hole by injection molding, a first rubber core engaged in the first shell body, a first cable at one end of which is arranged in the first shell body, and a first pin crimped to the end of the first cable and engaged in the first rubber core; the second plug comprises a second shell body inserted in the first mounting hole at one end thereof, a second rubber core engaged in the second shell body, a second cable at one end of which is arranged in the second shell body, and a first socket terminal crimped to the end of the second cable and engaged in the second rubber core, and the first socket terminal is plugged into the first pin.

3. The combined connector according to claim 2, characterized in that: The two side surfaces of the fixing seat are respectively raised with a first boss and a second boss corresponding to each other in the front and rear, the first mounting hole is arranged in the middle of the first boss and the second boss in the front and rear, the first shell is fixedly connected with the first boss by snapping, the inner end of the first shell is provided with a first plug-in portion extending forward into the second boss, one end of the first pin extends into the first plug-in portion, one end of the second shell is inserted into the second boss and arranged around the first plug-in portion, and one end of the second rubber core is inserted into the first plug-in portion so that the first socket terminal and the first pin are plugged in.

4. The combined connector according to claim 3, characterized in that: A ring with a right-angled cross-section is provided on the inner wall of the outer end of the first boss, and a groove matching the shape of and sleeved with the ring is provided on the outer periphery of the first shell; a stop step is indented on the inner wall of the outer end of the second boss, and a first stop portion cooperating with the stop step is radially provided on the outer periphery of the second shell, and a second stop portion abutting against the outer end face of the second boss is also radially provided on the outer periphery of the second shell.

5. The combined connector according to claim 4, characterized in that: A buckle is also provided on the second boss, and the second plug also includes a locking assembly arranged on the outside of the second shell and engaged with the buckle, and a mounting groove for installing the locking assembly is provided on the second shell; the locking assembly includes a lever arm rotatably arranged in the mounting groove and a sliding member slidably arranged in the mounting groove, one end of the lever arm is provided with a bayonet engaged with the buckle, the other end of the lever arm is inserted into the sliding member, and a spring is provided between the end of the lever arm and the sliding member, and a positioning portion is respectively protruded on both sides of the sliding member, and a limit platform for supporting the positioning portion is protruded on the inner wall of the end of the mounting groove away from the buckle.

6. The combined connector according to claim 5, characterized in that: A first shielding ring, a waterproof ring and a tail buckle are provided in sequence from the inside to the outside between the cable and the insertion part, and the outer side of the tail buckle is buckled with the insertion part; a first waterproof ring and a first tail buckle are provided in sequence from the inside to the outside between the first cable and the first shell, and the first tail buckle is buckled with the first shell, at least one introduction hole is penetrated through the first waterproof ring, and a pressure column is provided on the inner side surface of the first tail buckle that is inserted into the introduction hole and presses the first rubber core forward; a second waterproof ring and a second tail buckle are provided in sequence from the inside to the outside between the second cable and the second shell, and the second tail buckle is buckled with the second shell; a second shielding ring is provided between the second cable and the second rubber core.

7. The combined connector according to claim 6, characterized in that: The fixing base is also provided with second mounting holes extending through the front and rear sides, the first signal plug includes a third shell inserted into the second mounting hole, a plurality of signal pins snap-fitted into the third shell, and a plurality of first signal wires whose one ends are arranged in the third shell and connected one-to-one with the signal pins; the second signal plug includes a fourth shell inserted into the second mounting hole, a plurality of signal terminals snap-fitted into the fourth shell, and a plurality of second signal wires whose one ends are arranged in the fourth shell and connected one-to-one with the signal terminals, and the signal terminals are plugged into the signal pins.

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