CN116937200A - Board end connector, electric connection device and vehicle - Google Patents

Abstract

The application discloses a board end connector, an electric connection device and a vehicle, wherein the board end connector is used for connecting a wire harness end connector and is in plug-in connection with a socket of the wire harness end connector, the board end connector comprises a first shell, a circuit board and a socket module, the first shell is formed with a first accommodating cavity for accommodating the wire harness end connector, a bottom plate of the first shell is provided with a plurality of openings, and a first end of each contact pin of the socket module penetrates through the opening and stretches into the first accommodating cavity to be in plug-in connection with the socket of the wire harness end connector so as to form a terminal pair in a plug-in connection manner. The second end of each contact pin is detachably connected in each conductive hole corresponding to each opening on the circuit board, and because the contact pins are detachably connected with the conductive holes, certain contact pins can be selected not to be inserted into the conductive holes according to the requirements of users on hardware interface resources, so that certain sockets of the wire harness end connector are empty, the condition of redundancy of terminals is avoided, meanwhile, the cost can be saved, and the applicability of the electric connecting device is improved.

Description

Board end connector, electric connection device and vehicle

Technical Field

The application relates to the technical field of new energy vehicle driving motors, in particular to a board end connector, an electric connection device and a vehicle.

Background

The domain controller is the core of each functional domain of the automobile and mainly comprises a domain main control processor, an operating system, application software, an algorithm and the like. Abundant hardware interface resources require terminal pairs with various through-current capabilities, but most of the current electric connection devices are based on traditional distributed architecture schemes, and cannot meet the connection requirements of a large number of terminal pairs.

Meanwhile, the number of terminal pairs in the finished electric connection device on the market is fixed, and a plurality of electric connection devices are often required to be combined for use. In the process of combining and using a plurality of finished electric connection devices, the terminal pairs after combination are found to be redundant, so that the waste of vehicle port resources is caused.

Disclosure of Invention

The embodiment of the application provides a board end connector, an electric connection device and a vehicle, which can control the formed terminal pair form so as to avoid the condition of redundant terminal pairs, save the cost and improve the applicability of the electric connection device.

In one aspect, an embodiment of the present application provides a board end connector for connecting and plugging with a socket of a wire harness end connector, the board end connector including: the first shell comprises a plurality of first side plates and a bottom plate which are connected and enclosed to form a first accommodating cavity, a plurality of openings are formed in the bottom plate, and the first accommodating cavity is used for accommodating the wire harness end connector; the circuit board is arranged on one side of the first shell and is provided with at least one conductive hole corresponding to each opening; the socket module comprises more than two contact pins, the contact pins are provided with a first end and a second end, the first end of each contact pin penetrates through the opening and stretches into the first accommodating cavity to be in plug-in fit with the socket of the wire harness end connector, and the second end of each contact pin is detachably connected in each conductive hole corresponding to the opening.

According to one aspect of the application, the number of jack modules is more than two, the current carrying capacities of the pins of the same jack module are the same, and the current carrying capacities of the pins of at least two jack modules are different.

According to one aspect of the application, the number of pins of at least one socket module is less than the number of openings corresponding to the socket modules.

According to one aspect of the application, the circuit board comprises a plurality of independently arranged sub-boards, wherein the sub-boards are arranged in one-to-one correspondence with the socket modules, or the circuit board is integrally arranged and comprises a plurality of sub-areas, and each sub-area is arranged in one-to-one correspondence with the socket modules.

According to one aspect of the application, the second end of the pin is provided as a fish eye terminal.

Another aspect of the embodiments of the present application provides an electrical connection device, including a board end connector as in the above embodiments; the wire harness end connector is arranged in the first accommodating cavity of the board end connector, the wire harness end connector comprises a plug module, the plug module comprises more than two jacks, the jacks are arranged in one-to-one correspondence with the openings of the board end connector, and the first ends of the contact pins of the board end connector penetrate through the openings and are in plug-in fit with the jacks.

According to one aspect of the application, the wire harness end connector further comprises a second housing, the second housing comprises a plurality of second side plates which are connected end to end and are enclosed to form a second accommodating cavity, and the plug module is arranged in the second accommodating cavity; the first shell of the board end connector is sleeved on the periphery of the second shell, one of the first side plate and the second side plate of the board end connector is provided with a chute, and the other one of the first side plate and the second side plate is provided with a bump which is in sliding fit with the chute and can be detachably connected.

According to one aspect of the application, the number of the plug modules is more than two, the second shell further comprises a partition plate, the partition plate is connected with the second side plate and divides the second accommodating cavity into a plurality of subchambers, and each plug module is arranged in each subchamber; the number of the plug modules is equal to the number of the subcavities, or the number of the plug modules is smaller than the number of the Yu Ziqiang bodies, the second shell further comprises a filling part, among the subcavities, part of subcavities is connected with the plug modules, and the other part of subcavities is provided with the filling part.

According to one aspect of the application, the electrical connection device further comprises a PCBA board disposed on a side of the board end connector facing away from the harness end connector, the second end of each pin being threaded with a conductive aperture and secured to the PCBA board.

In yet another aspect, a vehicle is provided that includes the electrical connection device of the above embodiment.

The embodiment of the application discloses a board end connector, an electric connection device and a vehicle, wherein the board end connector is used for connecting a wire harness end connector and is in plug-in connection with a socket of the wire harness end connector, the board end connector comprises a first shell, a circuit board and a socket module, a first accommodating cavity for accommodating the wire harness end connector is formed in the first shell, a plurality of openings are formed in a bottom plate of the first shell, and a first end of each contact pin of the socket module penetrates through the opening and stretches into the first accommodating cavity to be in plug-in connection with the socket of the wire harness end connector so as to form a terminal pair in a plug-in connection mode. The second end of each contact pin is detachably connected in each conductive hole corresponding to each opening on the circuit board, and because the contact pins are detachably connected with the conductive holes, certain contact pins can be selected not to be inserted into the conductive holes according to the requirements of users on hardware interface resources, so that certain sockets of the wire harness end connector are empty, the terminal pair form formed after the wire harness end connector and the wire harness end connector are inserted and matched is controlled, the condition of terminal pair redundancy is avoided, meanwhile, the cost can be saved, and the applicability of the electric connecting device is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.

Fig. 1 is a schematic view of a board end connector according to an embodiment of the present application;

FIG. 2 is an exploded view of a board end connector provided in accordance with one embodiment of the present application;

FIG. 3 is a top view of a board end connector provided in accordance with one embodiment of the present application;

FIG. 4 is an exploded view of an electrical connection device provided in accordance with one embodiment of the present application;

fig. 5 is a schematic structural view of a second housing provided according to an embodiment of the present application;

fig. 6 is a schematic structural view of each plug module of the harness end connector provided according to an embodiment of the present application;

fig. 7 is a schematic view of a wire harness end connector provided according to an embodiment of the present application;

fig. 8 is a schematic view of a wire harness end connector according to another embodiment of the present application;

fig. 9 is a schematic structural view of a wire harness end connector provided according to still another embodiment of the present application;

fig. 10 is a schematic structural view of an electrical connection device according to another embodiment of the present application.

In the accompanying drawings:

1-a board end connector; 11-a first housing; 111-a first side plate; 112-a bottom plate; 12-a circuit board; 121-conductive holes; 13-a jack module; 131-pins; 2-a harness end connector; a 21-plug module; 211-sockets; 212-clamping grooves; 22-a second housing; 221-a second side plate; 222-a separator; 2221-elastic member; 3-PCBA board;

s-subchambers; x-direction of insertion.

Detailed Description

In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be made. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the application.

Current electrical connection devices often include a wire harness end connector that is a conductive assembly secured to the wire harness end, the wire harness end connector being provided with a socket, and a board end connector that is a conductive assembly secured to the circuit board, the board end connector being provided with a pin. When the wire harness end connector is in butt joint with the board end connector, the socket of the wire harness end connector is in plug-in fit with the contact pin of the board end connector, and a terminal pair form is formed, so that signal transmission between the wire harness end and the circuit board is realized.

The applicant notes that the number of terminal pairs in the electrical connection device on the market is fixed, so that in order to be suitable for the application scenario of the domain controller, a plurality of finished electrical connection devices are often required to be combined for use, however, because the sockets of the wire harness end connectors and the pins of the board end connectors in the finished electrical connection devices are fixed, in the process of combined use, the situation that the combined terminal pairs are redundant often occurs, and the waste of port resources is caused. In order to solve the above technical problems, the applicant has studied intensively to detachably connect pins to a circuit board, so that some pins can be selected to be not inserted according to the final requirement of a user, so as to avoid the situation of wasting port resources, and the embodiments of the present application are further described below.

For a better understanding of the present application, the board end connector, the electrical connection device and the vehicle according to the embodiments of the present application are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 3, an embodiment of the present application provides a board-end connector 1 for connecting a wire harness-end connector and plugging and matching with a socket of the wire harness-end connector, the board-end connector 1 includes a first housing 11, a circuit board 12 and a socket module 13, the first housing 11 includes a plurality of first side plates 111 and a bottom plate 112 connected and enclosing to form a first accommodating cavity, the bottom plate 112 is provided with a plurality of openings, the first accommodating cavity is used for accommodating the wire harness-end connector, the circuit board 12 is disposed at one side of the first housing 11, at least one conductive hole 121 is provided on the circuit board 12 corresponding to each opening, the socket module 13 includes more than two pins 131, each pin 131 has a first end and a second end, the first end of each pin 131 penetrates through the opening and extends into the first accommodating cavity to plug and match with the socket of the wire harness-end connector, and the second end is detachably connected in each conductive hole 121 corresponding to the opening.

The board-end connector 1 of the embodiment of the application comprises a first shell 11, a circuit board 12 and a socket module 13, wherein the first shell 11 is provided with a first accommodating cavity for accommodating the wire harness-end connector, a plurality of openings are formed in a bottom plate 112 of the first shell 11, and a first end of each contact pin 131 of the socket module 13 penetrates through the opening and stretches into the first accommodating cavity to be in plug-in fit with a socket of the wire harness-end connector so as to form a terminal pair in a plug-in manner. The second end of each contact pin 131 is detachably connected in each conductive hole 121 corresponding to each opening on the circuit board 12, and because the contact pins 131 are detachably connected with the conductive holes 121, certain contact pins 131 can be selected not to be inserted into the conductive holes 121 according to the requirements of users on hardware interface resources, so that certain sockets of the wire harness end connector are empty, the terminal pair form formed after the wire harness end connector 1 and the wire harness end connector are in inserted fit is controlled, the condition of terminal pair redundancy is avoided, meanwhile, the cost can be saved, and the applicability of the electric connecting device is improved.

It is understood that the number of the first ends and the number of the second ends of each pin 131 may be the same or different, and the first ends may be disposed corresponding to the openings on the bottom board 112, the second ends may be disposed corresponding to the conductive holes 121 on the circuit board 12, and the specific shape, size, number, etc. may be adjusted according to the specific structure of the electrical connection device, which is not particularly limited in the present application.

Alternatively, to achieve the detachable connection of the pin 131 and the circuit board 12, the second end of the pin 131 may be provided as a fisheye terminal, which is capable of elastically deforming itself when pressed into the conductive hole 121, so that the tight connection of the second end and the conductive hole 121 can be achieved without welding.

For the application scenario of the domain controller of the vehicle, the abundant hardware interface resources of the domain controller require terminal pairs of various different current carrying capacities. Referring to fig. 1 to 3, in some alternative embodiments, the number of socket modules 13 is more than two, the current carrying capacities of the pins 131 of the same socket module 13 are the same, and the current carrying capacities of the pins 131 of at least two socket modules 13 are different. By making the current carrying capacities of the pins 131 of at least two socket modules 13 different, terminal pairs with different current carrying capacities can be formed after the pins 131 are matched with the sockets, so that the method is more suitable for the application field of domain controllers.

Alternatively, the shape of the opening on the bottom plate 112 may be the same as the shape of the first end of the corresponding pin 131, so when there is a difference in the current carrying capacity of the pins 131 of at least two socket modules 13, the shape of the opening on the bottom plate 112 may also be made different, so that the displacement of each pin 131 in the plane perpendicular to the insertion direction thereof can be limited by the opening, and the safety of the pin 131 is ensured.

Because the pins 131 of at least two jack modules 13 differ in current carrying capacity, in some alternative embodiments, the number of pins 131 of at least one jack module 13 is less than the number of openings to which the jack modules 13 correspond. Namely, when the current carrying capacities of the pins 131 of at least two socket modules 13 are different, the pins 131 of one socket module 13 or a plurality of socket modules 13 can be selected to be not inserted according to the requirement of a user on hardware interface resources, so that the sockets with a certain current carrying capacity are empty in the wire harness end connector matched with the socket modules, and the combination form of the terminal pairs of the electric connection device can be further increased, so that the socket module is more suitable for application scenes such as domain controllers.

It will be appreciated that since the pins 131 of the same jack module 13 have the same current carrying capacity, in some alternative embodiments, the circuit board 12 includes a plurality of independently disposed sub-boards, which are disposed in a one-to-one correspondence with the jack modules 13, or the circuit board 12 is integrally disposed and includes a plurality of sub-areas, each of which is disposed in a one-to-one correspondence with the jack modules 13. By arranging the circuit board 12 corresponding to each socket module 13, the socket modules 13 can be more conveniently matched with the circuit board 12 in a plugging manner, for example, when the circuit board 12 comprises a plurality of independently arranged sub-boards, a certain sub-board can be prevented from being integrally plugged, so that the adjustment efficiency is further improved.

Referring to fig. 3 to 7, an embodiment of the present application further provides an electrical connection device, which includes a board end connector 1 and a wire harness end connector 2, wherein the board end connector 1 is the board end connector 1 in the above embodiment, the wire harness end connector 2 is disposed in a first accommodating cavity of the board end connector 1, the wire harness end connector 2 includes a plug module 21, the plug module 21 includes two or more sockets 211, the sockets 211 are disposed in one-to-one correspondence with the openings of the board end connector 1, and the first ends of the pins 131 of the board end connector 1 penetrate through the openings and are in plug-in fit with the sockets 211.

The first end of each pin 131 of the socket module 13 of the board-end connector 1 is penetrated and provided with an opening and is in plug-in fit with the socket 211 of the wire harness-end connector 2, so that a terminal pair can be formed by plug-in, and because the second end of each pin 131 of the board-end connector 1 can be detachably connected in each conductive hole 121 of the circuit board 12, according to the requirement of a user on hardware interface resources, namely, certain pins 131 are not selected to be inserted in the conductive holes 121, so that certain sockets 211 of the wire harness-end connector 2 are left empty, the terminal pair form formed after the plug-in fit of the board-end connector 1 and the wire harness-end connector 2 is realized, the condition of redundancy of the terminal pair is avoided, the cost is saved, and the applicability of the electric connecting device is improved.

Referring to fig. 3 to 5, the harness end connector 2 further includes a second housing 22, the second housing 22 includes a plurality of second side plates 221 connected end to end and enclosing to form a second accommodating cavity, the plug module 21 is disposed in the second accommodating cavity, the first housing 11 of the board end connector 1 is sleeved on the periphery of the second housing 22, one of the first side plates 111 and the second side plates 221 of the board end connector 1 is provided with a sliding slot, and the other is provided with a protruding block, and the protruding block is slidingly engaged with the sliding slot and detachably connected. Through locating second casing 22 periphery with first casing 11 cover, can protect wire harness end connector 2 promptly to improve electric connecting device's security, and, through the sliding fit of first curb plate 111 and second curb plate 221, can play the guide effect in order to the quick grafting of board end connector 1 and wire harness end connector 2, and can form the anti-disengaging structure through spout and lug, in order to guarantee the reliability that board end connector 1 and wire harness end connector 2 connect.

Referring to fig. 3 to 6, it can be understood that, since the number of the socket modules 13 of the board-end connector 1 is more than two, in order to mate with the board-end connector 1, in some alternative embodiments, the number of the plug modules 13 is more than two, the second housing 22 further includes a partition 222, and the partition 222 is connected to the second side plate 221 and divides the second accommodating cavity into a plurality of sub-cavities S, and each plug module 12 is disposed in each sub-cavity S. By adjusting the number and the size of the partition plates 222, the first housing 11 can be divided into a plurality of sub-cavities S for accommodating the plug modules 21.

The number of the plug modules 21 is equal to the number of the sub-cavities S, or the number of the plug modules 21 is smaller than the number of the Yu Ziqiang bodies S, the second housing 22 further comprises a filling portion, among the plurality of sub-cavities S, part of the sub-cavities S are connected with the plug modules 21, and the other part of the sub-cavities S are provided with the filling portion. For example, when the plug module 21 is connected to only a portion of the sub-cavities S, the current-carrying capacity of the electrical connection device can be satisfied, the portion of the sub-cavities S, i.e., the number of plug modules 21 is smaller than the number of Yu Ziqiang S. In this case, a filling portion may be provided in the empty sub-cavity S, thereby ensuring the aesthetic property and safety of the harness end connector 1.

Alternatively, the filler may be provided as a rubber plug, which may be the same external dimensions and structure as the plug module 12.

Referring to fig. 5 to 9, since the current carrying specifications of the pins 131 of at least two jack modules 13 are different, the current carrying capacities of the sockets 221 of at least two plug modules 21 are different in order to mate with the jack modules 13.

Fig. 6 is a schematic structural view of the plug modules 21 of the harness end connector 1 according to the embodiment of the present application, wherein each plug module 21 is distinguished according to the current carrying capacity of the socket 221, and can be classified into four types as follows:

the first is a 0.5&0.63 plug module, comprising 20 sockets, the current carrying capacity of which is generally less than or equal to 3A; the second is a 1.2&1.5 plug module comprising 10 sockets with current carrying capacity of 3A-13A in general; the third is a 2.5&2.8 plug module, comprising 10 sockets, the current carrying capacity of which is generally 15A-20A; the fourth is a 6.3&9.5 plug module comprising 3 sockets, typically having a current carrying capacity of 22A to 50A.

It should be noted that the above-mentioned plug modules 21 with multiple current carrying capacities are only illustrative, and the plug modules 21 in the embodiments of the present application include, but are not limited to, the above-mentioned plug modules 21, which should not be construed as limiting the scope of the present application.

Because the current carrying specifications of the plug modules 21 are different, in some alternative embodiments, each plug module 21 is detachably connected in the sub-cavity S, so that according to the requirement of a user on the hardware interface resource, the plug module 21 with any current carrying capacity can be detachably connected in each sub-cavity S, and the electrical connection device with the corresponding current carrying capacity is formed by plugging the plug modules 12 matched with the plug modules 21 on the circuit board 12, so that the device is more suitable for application scenarios such as a domain controller and the like, and meets the requirement of the user on the hardware interface resource.

Optionally, the structures of the sub-cavities S are the same, and each plug module 21 is detachably connected to any sub-cavity S. That is, while the structural dimensions of the sub-cavities S are the same, the external dimensions of the plug modules 21 with different current carrying capacities are the same, so that any one of the plug modules 21 with current carrying capacity can be detachably connected in each sub-cavity S, thereby facilitating the assembly of the wire harness end connector 2 and reducing the cost. Since the external dimensions of the plug modules 21 are the same, when the plug modules 21 with different current carrying capacities are installed in the sub-cavities S, the plug modules 21 with different current carrying capacities can be set to different colors in addition to the difference in the number and/or the cross-sectional dimensions of the sockets 211 on the plug modules 21, so that the adjustment of the user is facilitated.

Referring to fig. 5 to 9, in order to realize detachable connection of the plug module 21 in the sub-cavity S, in some alternative embodiments, one of the partition 222 and the plug module 21 is provided with an elastic member 2221, and the other is provided with a clamping groove 212, and the elastic member 2221 is clamped in the clamping groove 212. Namely, the elastic member 2221 cooperates with the clamping groove 212 to limit the movement of the plug module 21 relative to the sub-cavity S along the insertion direction X, so as to realize the positioning of the plug module 21 in the sub-cavity S.

Alternatively, the spacer 222 and the plug module 21 may be made of rubber materials, thereby forming a resilient structure to facilitate the detachable connection of the spacer 222 and the plug module 21. Meanwhile, after insertion, the end face of the plug module 21 in the insertion direction X should be located in the sub-cavity S, so that the plug module 21 is protected by the second housing 22 to avoid damage of the plug module 21.

Furthermore, to facilitate the mating engagement of the plug module 21, in some alternative embodiments, the elastic member 2221 includes a guide surface and a clamping surface, where the guide surface is disposed obliquely along the insertion direction X of the plug module 21, and the elastic member 2221 can be guided into the clamping groove 212 by the guide surface and make the clamping surface abut against the clamping groove 212 to limit the movement of the plug module 21 along the insertion direction X. Specifically, during the process of inserting the plug module 21 into the sub-cavity S, the elastic member 2221 can be guided by the guiding surface and can be pressed to elastically deform during the process, and when the plug module 21 moves to the state that the elastic member 2221 abuts against the clamping groove 212, the elastic member 2221 is not pressed to pop out any more, and the clamping surface abuts against the clamping groove 212 to limit the movement of the plug module 21 along the insertion direction X, so as to fix the plug module 21 in the sub-cavity S.

Referring to fig. 10, in some alternative embodiments, the electrical connection device further includes a PCBA board 3 disposed on a side of the board end connector 5 facing away from the harness end connector 2, and a second end of each pin 131 is inserted through the conductive hole 121 and fixed on the PCBA board 3. The board end connector 1 can be fixed on the PCBA board 3, and an electric connection structure from the wire harness end connector 2 to the PCBA board 3 can be formed by abutting the wire harness end connector 2 with the board end connector 1, so that the application of the electric connection device in the domain controller is realized.

Alternatively, the second ends of the pins 131 may be soldered to the PCBA board 3, and the modules may be docked by mechanical connection without any soldering process prior to connecting the pins 131 to the PCBA board 0 3, which is more environmentally friendly.

The embodiment of the application also provides a vehicle, which comprises the electric connection device in the embodiment. Therefore, the vehicle provided by the embodiment of the present application has the technical effects of the technical solution of the electrical connection device in any of the above embodiments, and the same or corresponding structures and terms as those of the above embodiments are not repeated herein. The vehicles in the present application may include various buses, home vehicles, off-road vehicles, military vehicles, new energy vehicles, etc., and the present application is not limited thereto.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used only to refer to one entity

Or an operation is distinguished from another entity or operation, and does not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements

Other elements not explicitly listed or inherent to such process, method, article, or apparatus are also included. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A board end connector for connecting a wire harness end connector and mating with a socket of the wire harness end connector, the board end connector (1) comprising:

the first shell (11) comprises a plurality of first side plates (111) and a bottom plate (112) which are connected and enclose to form a first accommodating cavity, a plurality of openings are formed in the bottom plate (112), and the first accommodating cavity is used for accommodating the wire harness end connector;

a circuit board (12) disposed on one side of the first housing (11), wherein at least one conductive hole (121) is formed on the circuit board (12) corresponding to each opening;

the socket module (13) comprises more than two contact pins (131), the contact pins (131) are provided with a first end and a second end, the first end of each contact pin (131) penetrates through the opening and stretches into the first accommodating cavity to be in plug-in fit with the socket of the wire harness end connector, and the second end of each contact pin is detachably connected in each conductive hole (121) corresponding to the opening.

2. The board-end connector according to claim 1, characterized in that the number of socket modules (13) is more than two, the current carrying capacities of the pins (131) of the same socket module (13) are the same, and the current carrying capacities of the pins (131) of at least two socket modules (13) differ.

3. The board end connector according to claim 2, wherein the number of pins (131) of at least one of the socket modules (13) is smaller than the number of openings corresponding to the socket modules (13).

4. The board-end connector according to claim 2, wherein the wiring board (12) comprises a plurality of independently arranged sub-boards, which are arranged in one-to-one correspondence with the socket modules (13), or wherein the wiring board (12) is integrally arranged and comprises a plurality of sub-areas, each of which is arranged in one-to-one correspondence with a socket module (13).

5. The board end connector of claim 1, wherein the second end of the pin (131) is provided as a fish eye terminal.

6. An electrical connection device, comprising:

the board end connector (1) according to any one of claims 1 to 5;

the wire harness end connector (2) is arranged in the first accommodating cavity of the board end connector (1), the wire harness end connector (2) comprises a plug module (21), the plug module (21) comprises more than two jacks (211), the jacks (211) are arranged in one-to-one correspondence with the openings of the board end connector (1), and the first ends of the contact pins (131) of the board end connector (1) penetrate through the openings and are in plug-in fit with the jacks (211).

7. The electrical connection device according to claim 6, wherein the harness end connector (2) further comprises a second housing (22), the second housing (22) comprising a plurality of second side plates (221) connected end to end and enclosing to form a second receiving cavity, the plug module (21) being disposed in the second receiving cavity;

the first shell (11) of the board end connector (1) is sleeved on the periphery of the second shell (22), one of the first side plate (111) and the second side plate (221) of the board end connector (1) is provided with a sliding groove, and the other one is provided with a protruding block which is in sliding fit with the sliding groove and can be detachably connected.

8. The electrical connection device according to claim 7, wherein the number of the plug modules (21) is two or more, the second housing (22) further comprises a partition plate (222), the partition plate (222) is connected with the second side plate (221) and divides the second accommodating cavity into a plurality of subchambers, and each plug module (21) is disposed in each subchamber;

the number of the plug modules (21) is equal to the number of the subchambers, or the number of the plug modules (21) is smaller than the number of the subchambers, the second shell (22) further comprises a filling part, a plurality of subchambers, part of the subchambers are connected with the plug modules (21), and the other part of the subchambers are provided with the filling part.

9. The electrical connection device according to claim 6, further comprising a PCBA board (3) disposed on a side of the board-end connector (1) facing away from the harness-end connector (2), the second end of each of the pins (131) being provided with a conductive hole (121) therethrough and being fixed to the PCBA board (3).

10. A vehicle comprising an electrical connection device as claimed in any one of claims 6 to 9.