CN217387402U - A battery pack and its connector, vehicle - Google Patents

Abstract

The present application discloses a battery pack, a connector thereof, and a vehicle. The connector includes a housing with a accommodating space in the housing; and a plurality of first wiring ports, the plurality of first wiring ports are arranged on the side of the housing. On the outer side wall and communicated with the accommodating space, the plurality of first wiring ports are located on at least two different outer side walls of the housing; at least one second wiring port is provided on the at least one second wiring port. on the outer side wall of the casing and communicated with the accommodating space; a first connection wire and a second connection wire, the first end of the first connection wire is inserted in a first connection port and connected to the positive or negative electrode of the battery pack Electrical connection, the first end of the second connection wire is inserted into a second connection port and electrically connected to the negative electrode or positive electrode of the battery pack, the connector of the present application can better realize the electrical connection between the battery packs, The wiring mode of the connecting wires between the battery packs is made more concise, and the length and bending times of the connecting wires are reduced.

Description

A battery pack and its connector, vehicle

technical field

The present application relates to the field of batteries, and in particular to a battery pack, a connector thereof, and a vehicle.

Background technique

At present, new energy electric vehicles usually require multiple battery packs in series to form the power source of the electric vehicle. Usually, multiple battery packs are connected in series through the connector structure. However, the positive and negative poles of the connectors on each battery pack are fixed. One direction, which leads to the following problems in the current connectors: On the one hand, if the battery pack is arranged in a too compact position, the space between the positive or negative outlet end of the battery pack is limited from the frame beam. The bending radius of the bundle is too small, and the bending radius of the cable does not meet the 5D requirements. On the other hand, if the battery pack is arranged up and down, the battery pack series wiring harness needs to be bent multiple times to achieve the purpose of series connection, the length of the cable increases, and the turning radius of the high-voltage wiring harness is too small. , the long-term operation of the vehicle is prone to damage to the outer skin of the high-voltage wiring harness, which reduces the reliability of the cable, which in turn causes the vehicle to leak electricity, and even causes a battery short circuit.

Utility model content

In view of the problems existing in the prior art, the present application provides, on the one hand, a connector for a battery pack, including:

a housing, the housing has a accommodating space;

A plurality of first wiring ports, the plurality of first wiring ports are arranged on the outer side wall of the housing and communicate with the accommodating space, and the plurality of first wiring ports are located at least two different from the housing on the outer side wall;

at least one second connection port, the at least one second connection port is disposed on the outer side wall of the housing and communicates with the accommodating space;

A first connection line and a second connection line, the first end of the first connection line is inserted into one of the first connection ports and is electrically connected to the positive or negative electrode of the battery pack, and the second connection line is The first end is inserted into one of the second connection ports and is electrically connected to the negative electrode or the positive electrode of the battery pack

Exemplarily, the connector further includes a sealing structure for sealing the first wiring port and the second wiring port, and the sealing structure is sleeved on the first wiring port and the second wiring port respectively.

Exemplarily, at least one of the first wiring ports and at least one of the second wiring ports are provided on the first side wall of the housing, and the second and third side walls of the housing are Or one of the fourth side walls is provided with at least one of the first connection ports, or at least one of the first connection ports and at least one of the second connection ports.

Exemplarily, at least one of the first wiring port and/or at least one of the second wiring port is provided on the first side wall of the housing, and a second side wall of the housing is provided with At least one of the first connection port and at least one of the second connection port, at least one of the first connection port and/or at least one of the second connection port is provided on the third side wall of the housing , at least one of the first connection port and/or at least one of the second connection port is arranged on the fourth side wall of the housing.

Exemplarily, the connector includes three of the first wiring ports and three of the second wiring ports, wherein one of the first wiring ports is provided on the first side wall, and one of the first wiring ports is provided on the first side wall. Two wiring ports are provided on the third side wall, one of the first wiring ports and one of the second wiring ports are provided on the second side wall, one of the first wiring ports and one of the second wiring ports A port is provided on the fourth side wall, wherein the first side wall is opposite to the third side wall, and the second side wall is opposite to the fourth side wall.

Exemplarily, the accommodating space of the casing includes a first accommodating space and a second accommodating space, and the first accommodating space and the second accommodating space are side by side along a surface of the casing for contacting the battery pack The first part of the side wall of the casing is enclosed to form the first accommodating space, and the second part of the side wall of the casing is enclosed to form the second accommodating space, wherein the first wiring port is provided in the On the side wall of the first part, the second wiring port is arranged on the side wall of the second part.

Exemplarily, an isolation plate is provided in the casing, and the isolation plate divides the first accommodating space and the second accommodating space.

Exemplarily, the housing includes a first housing and a second housing that are independent of each other, the first wiring port is provided on the side wall of the first housing, and the second wiring port is provided on the on the side wall of the second housing.

Exemplarily, the first wiring port or the second wiring port includes a protruding portion disposed outside the housing and connected to the side wall of the housing, and a wiring hole, the wiring hole passing through the housing. The protruding portion is communicated with the accommodating space, wherein the sealing structure includes a sealing cover, the sealing cover is sleeved on the protruding portion, and the sealing cover includes a cover body, and the sealing cover is connected to the cover body. The side wall portion and the connecting hole formed by the cover and the side wall portion are matched with the protruding portion.

Exemplarily, the sealing cover includes a first sealing cover and a second sealing cover, wherein,

The cover body of the first sealing cover is provided with a first through hole that communicates with the connecting hole of the first sealing cover, and the first end of the first connecting wire is penetrated through the first through hole, the first The connecting hole of the sealing cover and the first wiring port are located in and partially in the accommodating space of the housing;

The cover body of the second sealing cover is provided with a second through hole that communicates with the connecting hole of the second sealing cover, and the first end of the second connecting line is penetrated through the second through hole, the second through hole and the second through hole. The connection hole of the sealing cover and the second wiring port are located in and partially in the accommodating space of the housing.

Exemplarily, the sealing structure further includes a sealing ring, the sealing ring is disposed at the end of the protruding part and abuts part of the inner surface of the sealing cover.

Exemplarily, an internal thread is provided in the connecting hole, and an external thread matching the internal thread is provided on the outer side wall of the protruding portion.

Exemplarily, it also includes a first electrical connection part and a second electrical connection part provided in the housing, wherein,

One end of the first electrical connection portion is electrically connected to the first end of the first connection wire, and the other end of the first electrical connection portion is used to electrically connect the positive or negative electrode of the battery pack,

One end of the second electrical connection part is electrically connected to the first end of the second connection wire, and the other end of the second electrical connection part is used to electrically connect the negative electrode or the positive electrode of the battery pack.

Exemplarily, the connector further includes a low-voltage interface, and the low-voltage interface is used to collect the temperature and/or voltage of the battery pack; and/or

The connector further includes a heating interface for electrically connecting the heating element in the battery pack.

Exemplarily, the casing includes a first casing, a second casing independent of each other, and a connecting plate connecting the first casing and the second casing, and the first wiring port is provided on the On the side wall of the first housing, the second wiring port is arranged on the side wall of the second housing, and the low-voltage interface and/or the heating interface are arranged on the connecting plate.

Yet another aspect of the present application provides a battery pack, the battery pack comprising:

main body of battery pack;

The aforementioned connector, the connector is arranged on the main body of the battery pack, and the first connection wire is electrically connected to the positive or negative pole of the battery pack through the connector, and the second connection wire is electrically connected through the connector. The negative or positive electrode of the battery pack.

Yet another aspect of the present application provides a vehicle, the vehicle comprising:

body; and

a first battery pack and the aforementioned first connector electrically connected to the first battery pack; a second battery pack and the aforementioned second connector electrically connected to the second battery pack, the first battery pack adjacent to the second battery pack up and down; and

A third battery pack and the aforementioned third connector electrically connected to the third battery pack, the second battery pack is located on one side of the third battery pack,

Wherein, the first connector is located at a first wiring port on the first side wall of the housing, and the second connector is located on the second side wall of the housing with a second wiring port through the first connection wire For electrical connection, the first side wall is opposite to the second side wall. The second connection openings of the fourth side wall of the device are electrically connected by a second connection wire, wherein the third side wall and the fourth side wall are opposite to each other.

At least part of the at least one first connection opening and at least part of the second connection opening of the at least one second connection opening of the connector according to the present application are provided in different parts of the housing On the side wall, the electrical connection between the battery packs can be better realized, making the wiring method of the connecting wires between the battery packs more concise, reducing the length and bending times of the connecting wires, and reducing the layout space required by the bending radius. , thereby reducing the space and volume occupied by the battery pack on the vehicle body, and can also improve the reliability of the cable, thereby avoiding the occurrence of vehicle leakage and battery short-circuit caused by cable damage caused by bending.

Since the battery pack of the present application has the aforementioned connector, it has the same advantages as the aforementioned connector;

The vehicle of the present application includes a first battery pack, a second battery pack and a third battery pack. Through the aforementioned connectors, the electrical connection wiring between the battery packs can be better realized, so that the wiring of the connection wires between the battery packs can be better realized. The method is more concise, reducing the length and bending times of the connecting wire, reducing the layout space required by the bending radius, thereby reducing the space occupied by the battery pack on the vehicle body, and also improving the reliability of the cable, thereby avoiding the cable caused by bending. Damaged cables cause vehicle leakage and battery short-circuits.

Description of drawings

Fig. 1 is the wiring diagram of the connector structure of the conventional battery pack;

2 is an exploded view of a connector of a battery pack in an embodiment of the present application;

3 is a schematic diagram of the connection of a connector and a connecting wire of a battery pack in an embodiment of the present application;

4A is a schematic diagram of the connection of a connector and a connecting wire of a battery pack in an embodiment of the present application;

4B is a schematic diagram of the connection of a connector and a connecting wire of a battery pack in another embodiment of the present application;

4C is a schematic diagram of the connection of a connector and a connecting wire of a battery pack in another embodiment of the present application;

FIG. 5 is a schematic diagram of a connector of a battery pack in another embodiment of the present application; FIG. 6 is a schematic diagram of a connector of a battery pack in another embodiment of the present application;

FIG. 7 is a schematic diagram of the application of the connector of the battery pack in an embodiment of the present application.

Detailed ways

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without one or more of these details. In other instances, some technical features known in the art have not been described in order to avoid confusion with the present application.

It should be understood that the application may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this application to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. The same reference numbers refer to the same elements throughout.

It will be understood that, although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

Spatial relational terms such as "under", "below", "below", "under", "above", "above", etc., in It may be used herein for convenience of description to describe the relationship of one element or feature to other elements or features shown in the figures. It should be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation shown in the figures.

At present, new energy electric vehicles usually require multiple battery packs in series or in parallel to form the power source of the electric vehicle. Usually, multiple battery packs are connected in series or in parallel through a connector structure. As shown in FIG. 1 , the battery pack 100 is provided with a positive The negative connector 101, the positive and negative connectors 101 are left and right in the horizontal direction, and the high voltage connecting line 20 is the series line of the battery pack. Leave enough space for wiring; when the battery packs 100 are arranged up and down, the high-voltage connecting wires 20 of the upper and lower battery packs 100 need to be bent in multiple places to complete the series connection. However, the positive and negative leads of the connectors on each battery pack 100 are in a fixed direction, which leads to the following problems in the current connectors. The space from the frame beam is limited. At this time, when the high-voltage cables of the battery pack go out, the turning radius of the high-voltage wire harness is too small, and the bending radius of the cables does not meet the 5D requirements. On the other hand, if the battery packs are arranged up and down, the battery pack series wiring harness needs more Secondary bending to achieve the purpose of series connection, the length of the cable increases, the turning radius of the high-voltage wiring harness is too small, and the outer skin of the high-voltage wiring harness is easily damaged during long-term operation of the vehicle, which reduces the reliability of the cable, which in turn causes the vehicle to leak electricity, and even causes a battery short circuit. .

In view of the existence of the above problems, the present application proposes a new connector for a battery pack, comprising: a housing with a accommodating space in the housing; and a plurality of first wiring ports, which are arranged in the on the outer side wall of the housing and communicated with the accommodating space, the plurality of first wiring ports are located on at least two different outer side walls of the housing; at least one second wiring port, the at least one second wiring port The wiring port is arranged on the outer side wall of the casing and communicates with the accommodating space; a first connecting wire and a second connecting wire, the first end of the first connecting wire is inserted into one of the first wiring ports and is electrically connected to the positive electrode or the negative electrode of the battery pack, and the first end of the second connecting wire is inserted into one of the second wiring ports and is electrically connected to the negative electrode or the positive electrode of the battery pack. The plurality of first wires of the connector according to the present application are located on at least two different outer side walls of the casing, so that the electrical connection wiring between the battery packs can be better realized, so that the connection wires between the battery packs can be better realized. The cable routing method is more concise, reducing the length and bending times of the connecting wire, reducing the layout space required by the bending radius, thereby reducing the space occupied by the battery pack on the vehicle body, and improving the reliability of the cable, thereby avoiding bending due to bending. The resulting cable damage will cause vehicle leakage and battery short-circuit.

The following describes the connector of the battery pack, the battery pack and the vehicle of the present application with reference to FIGS. 1 to 7 , wherein FIG. 1 is a wiring diagram of a conventional battery pack connector structure; FIG. 2 is an embodiment of the present application The exploded view of the connector of the battery pack in the middle; FIG. 3 is a schematic diagram of the connection of the connector of the battery pack and the connecting wire in an embodiment of the present application; FIG. 4A is the connection of the connector and the connecting wire of the battery pack in an embodiment of the present application Schematic diagram; FIG. 4B is a schematic diagram of the connection of the connector and the connecting wire of the battery pack in another embodiment of the present application; FIG. 4C is a schematic diagram of the connection of the connector and the connecting wire of the battery pack in another embodiment of the present application; A schematic diagram of a connector of a battery pack in another embodiment of the application; FIG. 6 is a schematic diagram of a connector of a battery pack in another embodiment of the application; Schematic.

As an example, as shown in FIG. 2 , the connector 1 of the battery pack of the present application includes a housing 7 , and the housing 7 has a accommodating space therein, and the accommodating space is used for accommodating a plurality of components of the connector 1 , such as for Contains components that are electrically connected to the positive and negative electrodes of the battery pack, etc. In order to facilitate assembly and disassembly, the housing 7 of the present application can be composed of a housing body with an opening and a cover plate 13, wherein the cover plate 13 and the housing body are detachably connected, for example, by screwing, snapping, etc. In one or more ways, the cover plate 13 closes the opening of the housing body.

Further, continuing as shown in FIG. 2 , the connector 1 of the battery pack of the present application further includes a plurality of first wiring ports and at least one second wiring port, and the plurality of first wiring ports are located in the housing 7 at least two different On the outer side wall of the housing 7, the at least one second wiring port is arranged on the outer side wall of the housing 7, and the first wiring port and the second wiring port communicate with the accommodating space.

It is worth mentioning that, in this application, the outer side wall refers to the outer surface of the side wall of the housing.

The number of the first connection ports may be greater than or equal to two, such as 2, 3, etc., and the number of the second connection ports may be greater than or equal to one, such as 1, 2 or 3, etc. The figure shows the case when the number of the first connection port and the number of the second connection port is 3 each, but this is not intended to be a limitation.

In an example, the connector 1 includes two first wiring ports and one second wiring port, wherein the two first wiring ports are arranged on different side walls of the housing 7, for example Any two of the first connection ports A, B, and F and any one of the second connection ports C, D, and E as shown in FIG. 2 . When using, you can choose to use the connector 1 with the first wiring port and the second wiring port having different positions, and it is also possible to better realize the electrical connection between the battery packs, such as series or parallel wiring, so that the connection wires between the battery packs can be better. The cable routing method is more concise, reducing the length and bending times of the connecting wire, reducing the layout space required by the bending radius, thereby reducing the space occupied by the battery pack on the vehicle body, and improving the reliability of the cable, thereby avoiding bending due to bending. The resulting cable damage will cause vehicle leakage and battery short-circuit.

In one example, at least one of the first wiring ports and at least one of the second wiring ports are provided on the first side wall of the housing 7 , such as the first wiring ports F and For the second wiring port E, at least one of the first wiring port, or at least one of the first wiring port, or at least one of the a wiring port and at least one of the second wiring ports, for example, at least one of the first wiring ports, or at least one of the first wiring ports and at least one of the Second wiring port.

In one example, at least one of the first wiring port and/or at least one of the second wiring port is provided on the first side wall of the housing 7 , and the second side wall of the housing 7 is At least one of the first connection port and at least one of the second connection port is provided on the upper side, and at least one of the first connection port and/or at least one of the A second connection port, at least one of the first connection port and/or at least one of the second connection port is provided on the fourth side wall of the housing 7 , for example, as shown in FIG. 2 , the connection port The plug-in includes 3 first wiring ports A, B, F and 3 second wiring ports C, D, E, wherein one of the first wiring ports A is arranged on the first side wall, One of the second wiring ports D is provided on the third side wall, one of the first wiring ports B and one of the second wiring ports C are provided on the second side wall, and one of the first wiring ports F and one of the second wiring ports E are disposed on the fourth side wall, wherein the first side wall and the third side wall are opposite, and the second side wall and the fourth side wall relatively.

Optionally, the accommodating space of the casing 7 includes a first accommodating space 171 and a second accommodating space 172 , and the first accommodating space 171 and the second accommodating space 172 are used for contacting all parts along the casing 7 . The surfaces of the battery packs are arranged side by side, the first part of the side wall of the casing 7 is enclosed to form the first accommodating space 171 , and the second part of the side wall of the casing 7 is enclosed to form the second accommodating space 172 , wherein , the first connection port is arranged on the side wall of the first part, and the second connection port is arranged on the side wall of the second part. By making the first connection port and the second connection port correspond to the two accommodating spaces of the casing 7 respectively, the positive electrode and the negative electrode of the battery pack can be isolated to avoid short circuit. Optionally, an isolation plate 173 is provided in the housing 7 , and the isolation plate 173 divides the first accommodating space 171 and the second accommodating space 172 . By arranging the isolation plate 173, the function of isolating the positive electrode and the negative electrode of the battery pack can be avoided to avoid short circuit between the two.

The connector 1 of the present application further includes a first connection wire 4 and a second connection wire 12, wherein the first end of the first connection wire 4 is inserted into one of the first connection ports and is connected to the positive electrode or the positive electrode of the battery pack. The negative electrode is electrically connected, and the first end of the second connection wire 12 is inserted into one of the second connection ports and is electrically connected to the negative electrode or the positive electrode of the battery pack.

When the battery packs are electrically connected, for example, connected in series, any one of the first wiring ports and any one of the second wiring ports of the connector 1 can be selected to allow the first connection line 4 and the second connection line 12 to be inserted into the corresponding wiring The positive and negative electrodes of the battery pack are respectively electrically connected. For example, as shown in FIG. 2 , the first end of the first connecting wire 4 (eg, the positive cable) is inserted into one of the first connecting ports A and connected to the The positive electrode of the battery pack is electrically connected, and the first end of the second connection wire 12 (eg, a negative electrode cable) is inserted into one of the second connection ports and is electrically connected to the negative electrode of the battery pack.

In one example, the connector 1 further includes a first electrical connection portion 8 and a second electrical connection portion (not shown) disposed in the housing 7 , wherein one end of the first electrical connection portion 8 is electrically The first end of the first connection wire 4 is connected, the other end of the first electrical connection part 8 is used to electrically connect the positive or negative electrode of the battery pack, and one end of the second electrical connection part is electrically connected to the The first end of the second connection wire 12 and the other end of the second electrical connection part are used to electrically connect the negative electrode or the positive electrode of the battery pack.

Optionally, the first electrical connection portion 8 and the second electrical connection portion are, for example, terminals, wherein the side of the casing 7 facing the battery pack may also be provided with a mounting hole communicating with the accommodating space in the casing 7, the first electrical connection The other end of the electrical connection part 8 protrudes from the mounting hole and is located outside the casing 7, and the other end of the second electrical connection part is provided with a connection hole, through which the connection hole is connected to the positive pole of the battery pack, and the casing 7 faces the positive pole of the battery pack. One side can also be provided with a mounting hole communicating with the accommodating space in the housing 7, the other end of the second electrical connection part protrudes from the mounting hole and is located outside the housing 7, and the other end of the second electrical connection part is provided with a connecting hole , connected to the negative pole of the battery pack through the connection hole.

Optionally, the shape of the connection hole may be any suitable shape, such as a circle, an ellipse, or a direction. Optionally, the connection hole of the first electrical connection part 8 is electrically connected to the positive electrode of the battery pack by, for example, a conductive member, such as a bolt or a connecting wire, passing through the connection hole, and the connection hole of the second electrical connection part, for example, is passed through The conductive parts in the connection holes, such as bolts or connecting wires, are electrically connected to the negative electrode of the battery pack.

Optionally, one end of the first electrical connection portion 8, such as a terminal, is provided with a threaded hole, and is electrically connected to the first connection wire 4 through a conductive bolt disposed in the threaded hole, and one end of the second electrical connection portion, such as a terminal, is provided with a threaded hole. The threaded hole is electrically connected to the second connecting wire 12 through a conductive bolt disposed in the threaded hole.

In one example, as shown in FIG. 2 , the first end of the first connecting wire 4 is further provided with a wire nose 5 (optionally, the wire nose 5 can be connected to the first connecting wire 4 by crimping), the first The connecting wire 4 enters the first accommodating space 171 (also called the positive side) inside the housing 7 through the first connection port A, and the wire lug of the first connecting wire 4 is connected to the first electrical connection part, such as the positive terminal, by bolts. , the first end of the second connection wire 12 is also provided with a wire nose (optionally, the wire nose can be connected to the second connection wire 12 by crimping), and the second connection wire 12 enters the housing through the second connection port D 7. In the second accommodating space 172 (also called the negative side) in the interior, the wire nose of the second connecting wire 12 is connected to the second electrical connecting part such as the negative terminal through bolts, so as to realize the first connecting wire 4 and the positive electrode of the battery pack connection, and realize the connection between the second connection line 12 and the negative electrode of the battery pack.

In order to improve the tightness of the first connection port and the second connection port, as shown in FIG. 2 , the connector 1 of the present application further includes a plurality of sealing structures for sealing the first connection port and the second connection port , each of the sealing structures is respectively sleeved on one of the wiring ports, for example, each wiring port includes a side wall disposed outside the housing 7 and connected to the side wall of the housing 7 (eg, and the side wall of the housing 7). the outer surface (that is, the outer sidewall) of the device is connected to a protrusion and a wire hole, the wire hole penetrates through the protrusion and communicates with the accommodating space, wherein the sealing structure includes a sealing cover, the A sealing cover is sleeved on the protruding part, the sealing cover comprises a cover body, a side wall part connected with the cover body, and a connecting hole enclosed by the cover body and the side wall part, the connection The hole matches the protruding part, for example, the sealing cover is a threaded sleeve, the connecting hole is provided with an internal thread, and the outer side wall of the protruding part (that is, the outer surface of the side wall of the protruding part) is provided with The inner thread is matched with the outer thread, and the sealing cover can be connected with the protruding part of the wiring port through the thread, so as to realize the sealing of the wiring port. In addition to the above methods, the sealing cover can also be other suitable structures, for example, it can be an elastic rubber sleeve, which can be sleeved on the protruding part of the wiring port.

In one example, the sealing structure further includes a sealing ring 6, which is disposed at the end of the protruding part and abuts part of the inner surface of the sealing cover, so as to further improve the connection of the sealing structure to the port sealing performance. In one example, the sealing cover includes a first sealing cover 3 and a second sealing cover 11 , wherein the cover body of the first sealing cover 3 is provided with a first communication hole communicating with the connecting hole of the first sealing cover 3 . The first end of the first connection wire 4 passes through the first through hole, the connection hole of the first sealing cover 3 and the first connection port, and is partially located in the housing 7 In the space (for example, the first accommodating space 171 ), the cover body of the second sealing cover 11 is provided with a second through hole communicating with the connecting hole of the second sealing cover 11 , and the first end of the second connecting wire 12 It passes through the second through hole, the connecting hole of the second sealing cover 11 and the second wiring port, and is partially located in the accommodating space of the housing 7 .

For example, taking the wiring port A and the wiring port D in FIG. 2 as an example, the first connecting wire 4 is crimped to the wire nose, and is covered with a first sealing cover 3 (for example, a threaded sleeve), and the first connecting wire 4 passes through the first wiring port. A enters the positive side inside the housing 7 of the connector 1, and the wire lug 5 crimped by the first connecting wire 4 is fixed with the first electrical connection part 8 of the positive electrode, such as a terminal, through the bolt 16, and the first sealing cover 3 (such as a thread There is an internal thread structure inside, which is tightened with the external thread on the first wiring port A (that is, the external thread of the protruding part of the first wiring port A), and the first connection line 4 and the housing are realized through the sealing ring 6 7 sealing of the first wiring port A; the second connecting wire 12 is crimped to the wire nose 5, and is covered with a second sealing cover 11 (for example, a threaded sleeve), and the second connecting wire 12 enters the housing 77 through the second wiring port D On the inner negative side, the wire nose 5 crimped by the second connection wire 12 is fixed to the first electrical connection part 8, such as the negative terminal, through the bolt 16, and the second sealing cover 11 (such as a threaded sleeve) has an internal thread structure inside, It is tightened with the external thread on the second connection port D, and the second connection line 12 is sealed with the second connection port D of the housing 77 through the sealing ring 6; the other 4 connection ports B, C, E, F have no high-voltage lines. The cable is led out, and a sealing structure such as a plug cover 9 (that is, a sealing cover) and a sealing ring 6 is used, and the inner thread in the plug cover 9 is tightened and sealed with the wiring port; a ring of sealing gasket is provided at the upper opening of the main body of the casing 7 17. The cover plate 13 seals the upper part of the casing body of the casing 7 through the bolts 14.

For the connector 1 with three first wiring ports and three second wiring ports as exemplified in this application, except that the outlets of the first wiring port A and the second wiring port D as shown in FIG. 2 and FIG. 3 can be used In addition to the method, it can also have other outlet methods, such as the outlet method of the first connection port A and the second connection port E as shown in FIG. 4A , the first connection port B and the second connection port E shown in FIG. 4B . 4C, the outlet mode of the first connection port F and the second connection port E, the outlet mode of the first connection port F and the second connection port C, the first connection port F and the second connection port as shown in FIG. 4C. D's outlet method, etc.

Due to the above-mentioned various outlet methods, a suitable outlet method can be selected according to the positional relationship between the battery packs, so as to better realize the electrical connection between the battery packs, such as series wiring, so that the connection wires between the battery packs can be better connected. The cable routing method is more concise, reducing the length and bending times of the connecting wire, reducing the layout space required by the bending radius, thereby reducing the space occupied by the battery pack on the vehicle body, and improving the reliability of the cable, thereby avoiding bending due to bending. The resulting cable damage will cause vehicle leakage and battery short-circuit.

In an embodiment of the present application, the housing 7 of the connector 1 may further include two independent first housings 71 and second housings 72, and the first wiring port is provided on the first housing On the side wall of the second housing 71 , the second wiring port is arranged on the side wall of the second housing 72 . Optionally, a wiring port may be provided on the side walls of the first housing 71 and the second housing 72 opposite to each other.

For example, as shown in FIG. 5 , the side wall of the first housing 71 may be provided with three first wiring ports, the side wall of the second housing 72 may be provided with three second wiring ports, and the first wiring ports may be provided with On different side walls of the first housing 71 , the second wiring ports may be provided on different side walls of the second housing 72 .

The first casing 71 and the second casing 72 may be sealed by one cover plate 13 respectively, or may be sealed by the same cover plate 13 .

In one example, as shown in FIG. 6 , the connector 1 further includes a low-voltage interface 18 , and the low-voltage interface 18 is used to collect the temperature and/or voltage of the battery pack. A suitable position, for example, the casing 7 includes a first casing 71, a second casing 72, and a connecting plate connecting the first casing 71 and the second casing 72, the first casing 71 and the second casing 72 being independent of each other. A wiring port is provided on the side wall of the first housing 71 , the second wiring port is provided on the side wall of the second housing 72 , the low-voltage port 18 is provided on the connecting plate, The connecting plate can be connected to the opposite side walls of the first casing 71 and the second casing 72, for example, the bottom of the side walls (the bottom is the end of the connector 1 close to the battery pack).

The low-voltage interface 18 can be electrically connected to the battery management controller of the battery pack, and the low-voltage interface 18 is also used to send the collected information such as temperature and/or voltage to the battery management controller, so that the battery management controller can adjust the temperature or voltage When the preset range is exceeded, the battery pack is controlled to be turned off, etc., thereby increasing the safety of the battery pack.

In one example, the connector 1 of the present application further includes a heating interface 19, and the heating interface 19 is used to electrically connect the heating element in the battery pack, so as to supply power to the heating element in the battery pack when needed, so as to improve the The ambient temperature of the environment where the battery pack is located to prevent the negative impact on the performance of the battery pack due to too low temperature. The heating element can be any one or more of heating sheets, heating films, heating rods, resistance wires, etc. Optionally, the heating interface 19 may be provided on the housing 7 , for example, on the connecting plate of the housing 7 as shown in FIG. 6 .

Optionally, the connector 1 can also integrate components such as a maintenance switch and/or a fuse, so as to form an integrated connector 1 panel. The fuse can be blown when the current in the loop is too large, so as to protect the battery pack and improve the safety of the battery pack. The service switch can be used to de-energize the battery pack, etc.

The connector 1 can be arranged on the battery pack in any suitable way, for example, it is arranged on the side wall of the battery pack, that is, the side wall of the casing of the battery pack, for example, it can be connected by snap connection, screw connection or welding, etc. For example, as shown in FIG. 2 , one or more of the connectors can be detachably arranged on the battery pack through bolts 10 .

To sum up, each connection port of the connector 1 according to the present application is provided in a sealing structure, and the sealing structure can play a sealing function, so that the sealing of the connector 1 and the battery pack is better, thereby preventing water Or the effect of dust entering the connector 1 and the battery pack.

Moreover, when the connector 1 of the present application has a plurality of wiring ports, except for the wiring ports for connecting with the first connection line 4 and the second connection line 12, other redundant wiring ports are reserved for multiple outlet positions, In this way, it is possible to flexibly match the outlet requirements of different positions, so as to better realize the electrical connection between the battery packs, such as series wiring, so that the wiring method of the connecting wires between the battery packs is more concise, and the length and bending times of the connecting wires are reduced. Due to the layout space required by the bending radius, the space occupied by the battery pack on the vehicle body can be reduced, and the reliability of the cable can also be improved, thereby avoiding the occurrence of vehicle leakage and battery short circuit caused by cable damage caused by bending.

Further, the present application also provides a battery pack, the battery pack includes a battery pack body; the aforementioned connector, the connector is arranged on the battery pack body, and the first connection wire is electrically connected to the battery pack through the connector The positive or negative electrode of the battery pack, the second connecting wire is electrically connected to the negative or positive electrode of the battery pack through the connector, so that the battery pack and other battery packs are connected in series through the first connecting wire and the second connecting wire.

Since the battery pack of the present application has the aforementioned connector, it has the same advantages as the aforementioned connector.

Further, the present application is a vehicle, the vehicle comprising: a vehicle body (not shown). The vehicle body may include a space for accommodating passengers, and an installation space for installing various parts and equipment required for the vehicle.

In one example, as shown in FIG. 7 , the vehicle may include a battery power source formed by connecting a plurality of battery packs in series, and disposed in an installation space of the vehicle, such as the bottom of the vehicle body.

As shown in FIG. 7 , the battery power source 200 includes a first battery pack 201 and a first connector 21 electrically connected to the first battery pack 201 , and the first connector 21 may have the connectors described in the foregoing embodiments. The structure is not repeated here.

In one example, as shown in FIG. 7 , the battery power source 200 may further include a second battery pack 202 and a second connector 22 electrically connected to the second battery pack 202 , the first battery pack 201 and all The second battery pack 202 is adjacent to each other up and down, and the second connector 22 may have the structure of the connector described in the foregoing embodiments, and the description will not be repeated here.

In one example, as shown in FIG. 7 , the battery power source 200 may further include a third battery pack 203 and a third connector 23 electrically connected to the third battery pack 203 , and the second battery pack 202 is located at the On one side of the third battery pack 203, the third connector 23 may have the structure of the connector described in the foregoing embodiments, and the description will not be repeated here.

Wherein, the first connector 21 is located at a first wiring port on the first side wall of the housing, and the second connector 22 is located on the second side wall of the housing by a second wiring port through the first The connecting wire is electrically connected, the first side wall is opposite to the second side wall, and a first wiring port of the second connector located on the third side wall of the housing and a third connector located on the The second wiring port of the fourth side wall of the housing is electrically connected by a second connecting wire, wherein the third side wall and the fourth side wall are opposite to each other.

Optionally, as shown in FIG. 7 , the battery power source 200 may further include a fourth battery pack 204 and a fourth connector 24 electrically connected to the fourth battery pack 204 , and the fourth battery pack 204 is located in the third battery pack 203 above.

The number of battery packs included in the above battery power source 200 is only an example, and the number of battery packs to be connected in series may be more than four or less than four, at least two, which is not specifically limited herein.

To sum up, the vehicle of the present application includes a plurality of battery packs, and the electrical connection between the battery packs, such as series wiring, can be better realized through the arrangement of the connectors of the battery packs. The wiring method is more concise, reducing the length of the connecting line and the number of bending times, reducing the layout space required by the bending radius, thereby reducing the space volume occupied by the battery pack on the vehicle body, and improving the reliability of the cable, thereby avoiding bending caused by The cable is damaged, causing the vehicle to leak and the battery to short-circuit.

Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above-described example embodiments are exemplary only, and are not intended to limit the scope of the application thereto. Various changes and modifications may be made therein by those of ordinary skill in the art without departing from the scope and spirit of the present application. All such changes and modifications are intended to be included within the scope of this application as claimed in the appended claims.

Claims (17)

1. A connector for a battery pack, said connector comprising:

a housing having an accommodating space therein;

the first wiring ports are arranged on the outer side wall of the shell and are communicated with the accommodating space, and the first wiring ports are positioned on at least two different outer side walls of the shell;

at least one second wiring port, which is arranged on the outer side wall of the shell and is communicated with the accommodating space;

the first end of the first connecting wire is inserted into one first wiring port and is electrically connected with the positive pole or the negative pole of the battery pack, and the first end of the second connecting wire is inserted into one second wiring port and is electrically connected with the negative pole or the positive pole of the battery pack.

2. The connector of claim 1, further comprising:

and the sealing structure is used for sealing the first wiring port and the second wiring port and is respectively sleeved on the first wiring port and the second wiring port.

3. The connector assembly of claim 1, wherein at least one of said first and second wire ports is provided in a first side wall of said housing, and at least one of said first and second wire ports is provided in one of a second, third or fourth side wall of said housing.

4. The connector assembly of claim 1, wherein at least one of said first and/or second terminal ports is provided on a first side wall of said housing, at least one of said first and second terminal ports is provided on a second side wall of said housing, at least one of said first and/or second terminal port is provided on a third side wall of said housing, and at least one of said first and/or second terminal port is provided on a fourth side wall of said housing.

5. The connector of claim 4, wherein said connector includes 3 of said first wire ports and 3 of said second wire ports, wherein one of said first wire ports is disposed on said first side wall, one of said second wire ports is disposed on said third side wall, one of said first wire ports and one of said second wire ports are disposed on said second side wall, and one of said first wire ports and one of said second wire ports are disposed on said fourth side wall, wherein said first side wall is opposite said third side wall and said second side wall is opposite said fourth side wall.

6. The connector of claim 1, wherein the housing receiving space of the housing includes a first receiving space and a second receiving space, the first receiving space and the second receiving space

The second part lateral wall of the shell encloses and becomes the second accommodation space, wherein, the first wiring port set up in on the first part lateral wall, the second wiring port set up in on the second part lateral wall.

7. The connector of claim 6, wherein a spacer plate is disposed within said housing, said spacer plate dividing said first receiving space and said second receiving space.

8. The connector of claim 1, wherein said housing includes a first housing and a second housing independent of each other, said first wire port being provided on a side wall of said first housing, said second wire port being provided on a side wall of said second housing.

9. The connector according to claim 2, wherein the first or second wire connection port includes a protruding portion provided outside the housing and connected to a side wall of the housing, and a wire passage hole penetrating the protruding portion and communicating with the accommodating space, wherein the sealing structure includes a sealing cover that is fitted over the protruding portion, the sealing cover includes a cover body, a side wall portion connected to the cover body, and a connection hole surrounded by the cover body and the side wall portion, and the connection hole is matched with the protruding portion.

10. The connector of claim 9, wherein the seal cap comprises a first seal cap and a second seal cap, wherein,

the cover body of the first sealing cover is provided with a first through hole communicated with the connecting hole of the first sealing cover, and the first end of the first connecting wire penetrates through the first through hole, the connecting hole of the first sealing cover and the first wire connecting port and is partially positioned in the accommodating space of the shell;

the cover body of the second sealing cover is provided with a second through hole communicated with the connecting hole of the second sealing cover, and the first end of the second connecting wire penetrates through the second through hole, the connecting hole of the second sealing cover and the second wiring port and is partially located in the accommodating space of the shell.

11. The connector of claim 9, wherein said seal structure further comprises a seal ring disposed at an end of said projection and engaging a portion of an inner surface of said seal cover.

12. The connector of claim 9, wherein an internal thread is provided in the attachment hole, and an external thread matching the internal thread is provided on an outer side wall of the projection.

13. The connector of claim 1, further comprising a first electrical connection and a second electrical connection disposed within the housing, wherein,

one end of the first electric connection part is electrically connected with the first end of the first connection wire, the other end of the first electric connection part is used for electrically connecting the positive pole or the negative pole of the battery pack,

one end of the second electric connection part is electrically connected with the first end of the second connecting wire, and the other end of the second electric connection part is used for electrically connecting the negative pole or the positive pole of the battery pack.

14. The connector of claim 1, further comprising a low voltage interface for collecting temperature and/or voltage of a battery pack; and/or

The connector assembly further comprises a heating interface for electrically connecting a heating element within the battery pack.

15. The connector of claim 14, wherein said housing includes a first housing, a second housing, and a connecting plate connecting said first housing and said second housing, said first connection port being provided on a side wall of said first housing, said second connection port being provided on a side wall of said second housing, said low voltage port and/or said heating port being provided on said connecting plate.

16. A battery pack, comprising:

a battery pack body;

the connector as claimed in any one of claims 1 to 15, which is provided on the battery pack main body, and a first connecting wire is electrically connected to the positive electrode or the negative electrode of the battery pack through the connector, and a second connecting wire is electrically connected to the negative electrode or the positive electrode of the battery pack through the connector.

17. A vehicle, characterized in that the vehicle comprises:

a vehicle body;

a first battery pack and a first connector electrically connected to the first battery pack, the first connector being as claimed in any one of claims 1 to 15;

a second battery pack and a second connector electrically connected to the second battery pack, the second connector being according to any one of claims 1 to 15, the first battery pack and the second battery pack being adjacent one another; and

a third battery pack and a third connector electrically connected to the third battery pack, the third connector being according to any one of claims 1 to 15, the second battery pack being located on one side of the third battery pack,

wherein, a first wiring port of the first connector on the first side wall of the housing and a second wiring port of the second connector on the second side wall of the housing are electrically connected through a first connecting wire, the first side wall is opposite to the second side wall, a first wiring port of the second connector on the third side wall of the housing and a second wiring port of the third connector on the fourth side wall of the housing are electrically connected through a second connecting wire, and the third side wall is opposite to the fourth side wall.

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