WO2018137557A1

WO2018137557A1 - Connector assembly and battery connection system comprising same

Info

Publication number: WO2018137557A1
Application number: PCT/CN2018/073349
Authority: WO
Inventors: 漆辉; 方杰
Original assignee: 上海蔚来汽车有限公司
Priority date: 2017-01-24
Filing date: 2018-01-19
Publication date: 2018-08-02
Also published as: TWM563691U; CN206585092U

Abstract

Disclosed are a connector assembly and a battery connection system comprising the same. The connector assembly comprises an electric interface (100) and a liquid interface (200), wherein the electric interface (100) comprises a first end (110) of the electric interface and a second end (120) of the electric interface adapted to one another; the liquid interface (200) comprises a first end (210) of the liquid interface and a second end (220) of the liquid interface adapted to one another; and the first end (210) of the liquid interface and the second end (220) of the liquid interface are both provided with a cut-off valve (221). In addition, the first end (110) of the electric interface and the first end (210) of the liquid interface are fixed to a first component (10), and the second end (120) of the electric interface and the second end (220) of the liquid interface are fixed to a second component (20).

Description

Connector assembly and battery connection system including same

Technical field

The present invention relates to the field of electromechanical connection technology; in particular, the present invention relates to a connector assembly. Still further, the present invention also relates to a battery connection system including the same.

Background technique

It is well known that in many cases the device requires both electrical and liquid connections. In current applications, electrical connectors and liquid connectors are typically placed separately at different locations to prevent electrical/liquid leakage from causing hazards and accidents.

For example, a liquid-cooled battery pack for an electric vehicle is usually provided with a separate high-voltage electrical connector, a low-voltage electrical connector, a liquid connector, etc., wherein the high-voltage electrical connector is used to output the power of the battery pack to the body motor and to the battery pack. Used during charging, the low-voltage electrical connector is used for low-voltage power supply and communication between the battery pack and the body. The liquid connector transfers the coolant from the radiator or water pump to the cooling water jacket of the battery pack.

In practical applications, electrical connectors and liquid connectors are inserted and removed in different ways for safety reasons. Specifically, although they are arranged at the junction of the liquid-cooled battery pack and the electric vehicle body, the high-voltage and low-voltage electrical connectors generally have a locking device, which can only be inserted and removed by manual operation; and the liquid connector Generally, it cannot be disassembled after assembly to avoid coolant loss and environmental pollution. Because of these functional differences, while taking into account safety issues, electrical connectors and liquid connectors are typically designed separately and placed at different joints.

In the power-change mode, the various connectors that connect the battery pack to the body must be fast-swappable, quick to replace, and require no human intervention to support fully automated operation. It can be seen that the prior art electrical connectors and liquid connectors are not suitable for the power switching mode of the electric vehicle power battery pack.

Therefore, there is a need in the prior art for a connector assembly that can be adapted to the automated operation of the power-changing mode; at the same time, in other suitable situations, the existing electrical connectors and liquids are required for the compactness and ease of installation of the connecting device. The connector proposes improvements.

Summary of the invention

It is an object of the present invention to provide a connector assembly that overcomes the deficiencies of the prior art described above.

Still further, the invention also relates to an apparatus comprising such a connector assembly.

In order to achieve the aforementioned objects of the present invention, a first aspect of the present invention provides a connector assembly, wherein the connector assembly includes:

An electrical interface, the electrical interface including a first end of the electrical interface and a second end of the electrical interface;

a liquid interface, the liquid interface includes a first end of the liquid interface and a second end of the liquid interface, and the first end of the liquid interface and the second end of the liquid interface each have a shutoff valve;

And, the first end of the electrical interface and the first end of the liquid interface are fixed to the first component, and the second end of the electrical interface and the second end of the liquid interface are fixed to the second component.

Optionally, in the connector assembly as described above, a high voltage interface and a low pressure interface are integrated in the electrical interface, and/or the liquid interface is a coolant interface.

Optionally, in the connector assembly as described above, the first end of the electrical interface and the first end of the liquid interface are fixed side by side to the same surface on the first component, the electrical interface being second The end and the second end of the liquid interface are fixed side by side to the same surface on the second component.

Optionally, in the connector assembly as described above, the interface between the first end of the electrical interface and the second end of the electrical interface and the first end of the liquid interface and the second end of the liquid interface Coplanar.

Optionally, in the connector assembly as described above, the first end of the electrical interface and the second end of the electrical interface have a guide for facilitating their adaptation, and/or the first end of the liquid interface The second end of the liquid interface has a guide for facilitating its fitting.

Optionally, in the connector assembly as previously described:

One of the first end of the electrical interface and the second end of the electrical interface is a socket end having a PIN pin receptacle, the socket end being mounted to the first component by a first floating mechanism; and/or

The first end of the liquid interface is mounted to the first component by a second floating mechanism or the second end of the liquid interface is mounted to the second component by a second floating mechanism.

Optionally, in the connector assembly as described above, the socket end includes a housing composed of an upper cover and a base, and the intermediate cover has a middle baffle, a fixing seat for arranging the PIN pin, and The first floating mechanism, wherein the first floating mechanism comprises:

a pin, the pin shaft passing through the through hole of the fixing seat, the two ends of which are respectively inserted into the hole in the middle baffle and the base;

a first horizontal floating block and a second horizontal floating block respectively located above and below the fixing seat at the through hole; a spring, the spring sleeve is outside the pin shaft, and both end faces thereof respectively Relying on the intermediate baffle and the first horizontal slider;

A horizontal floating elastic member that is placed in the interlayer of the mount and has a gap with the mount.

Optionally, in the connector assembly as described above, the second floating mechanism comprises:

a floating mounting plate on which a through hole is arranged;

a horizontal floating elastomer located in the through hole;

a horizontal slider comprising two flaps and a joint connected between the two flaps, the joint passing through the horizontal floating elastic body, and the two flaps respectively covering the pass Both ends of the hole;

a bolt passing through the horizontal slider to pass through the horizontal floating elastomer;

a nut that is coupled to the threaded end of the bolt;

a spring sleeved on the bolt and having its two ends abut against the horizontal slider and the nut, respectively.

Alternatively, in the connector assembly as described above, the elastic body is a columnar rubber body, and a tooth groove is distributed on the outer peripheral surface thereof.

In order to achieve the aforementioned object of the present invention, a second aspect of the invention provides a device, wherein the device comprises the connector assembly of any of the preceding first aspects.

Optionally, in the device as described above, the device is an electric vehicle, and the first component is a chassis of the electric vehicle, and the second component is a battery pack of a power battery pack of the electric vehicle. case.

Optionally, in the device as previously described, the connector assembly is secured to the underbody and the battery pack housing by mounting brackets.

DRAWINGS

The disclosure of the present invention will become more apparent from the drawings. It is to be understood that the appended drawings are not intended to In the picture:

Figure 1 shows a schematic view of a connector assembly in accordance with an embodiment of the present invention;

Figure 2 is a second end of the electrical interface of the electrical interface of the connector assembly of Figure 1;

Figure 3 is a first end of the electrical interface of the electrical interface of the connector assembly of Figure 1;

Figure 4 is an exploded view of the first end of the electrical interface of Figure 3, showing the first floating mechanism;

Figure 5 is a first end of the liquid interface of the liquid interface of the connector assembly of Figure 1;

Figure 6 is a second end of the liquid interface of the liquid interface of the connector assembly of Figure 1;

Figure 7 is an exploded view of the second floating mechanism of the first end of the liquid interface of Figure 5.

detailed description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the respective drawings, the same reference numerals indicate the same or corresponding technical features.

Figure 1 shows a schematic view of a connector assembly in accordance with an embodiment of the present invention.

In the illustrated embodiment, the connector assembly includes an electrical interface 100 and a liquid interface 200. In the figure, the electrical interface 100 includes a first interface 110 and a second end 120 of the electrical interface that are adapted to each other. The electrical circuit is turned on and off when the two are turned on and off; the liquid interface 200 includes a first end of the liquid interface that is adapted to each other. 210 and the second end 220 of the liquid interface, when the two are turned on and off, the liquid cooling circuit is turned on and off. In addition to being used in liquid cooling circuits, the liquid interface 200 can also be used in other liquid circuits.

According to FIG. 1, the electrical interface first end 110 and the liquid interface first end 210 are secured to the first component 10, and the electrical interface second end 120 and the liquid interface second end 220 are secured to the second component 20. Shown in this example is the case where the connector assembly of the present invention is applied to an electric vehicle in which the first component 10 is the body base of the electric vehicle and the second component 20 is the battery case of the power battery pack of the electric vehicle. The connector assembly is used for high and low voltage electrical connections and liquid cooling circuit connections of the battery pack. It will be appreciated by those skilled in the art that in alternative embodiments, first component 10 and second component 20 may be any component that requires electrical and liquid connections and is not limited to the examples of this embodiment.

One of ordinary skill in the art will appreciate that while in the illustrated embodiment the first end 110 of the electrical interface is shown as an electrical outlet and the second end 120 of the electrical interface is shown as an electrical plug, the first end 110 of the electrical interface is electrically The plug, electrical interface second end 120 as an electrical receptacle will also fall within the scope of the present invention; although in the illustrated embodiment the liquid interface first end 210 is shown as a liquid cooled plug and the liquid interface second end 220 is shown as a liquid Cold socket, however, it will also fall within the scope of the present invention to have the liquid interface first end 210 as a liquid cooled socket and the liquid interface second end 220 as a liquid cooled plug; in addition, those skilled in the art can have the teachings of the present disclosure in accordance with the teachings of the present disclosure. Corresponding adjustments are made to the detailed features of the specific embodiments.

It will be appreciated that, in accordance with the present invention, when the first component 10 and the second component 20 are assembled together, the electrical interface first end 110 and the electrical interface second end 120 are turned on while the liquid interface first end 210 and the liquid interface are The two ends 220 are turned on; when the first component 10 and the second component 20 are separated, the electrical interface first end 110 and the electrical interface second end 120 are disconnected, while the liquid interface first end 210 and the liquid interface second End 220 is disconnected. Therefore, in order to prevent the coolant in the liquid cooling circuit from leaking when the liquid interface first end 210 and the liquid interface second end 220 are disconnected, the liquid interface first end 210 and the liquid interface second end 220 each have a shutoff valve. When the first end 210 and the second end 220 of the liquid interface are disconnected, the shutoff valve simultaneously closes the interface, and the cooling liquid does not flow out; when the first end 210 and the second end 220 of the liquid interface are assembled together, the shutoff valve opens Turn on the liquid cooling circuit.

The first ends 110, 210 and the second ends 120, 220 of the electrical interface 100 and the liquid interface 200 may be secured to the first component 10 and the second component 20 by mounting brackets, such as

brackets

12, 13, as shown, as shown A bolt or the like is directly fixed to the first member 10 and the second member 20 in a conventional manner. The fixing bracket may be fixed to the first member 10 and the second member 20 by a conventional manner such as bolting or welding, and then the electrical interface 100 and the liquid interface 200 are fixed to the

brackets

12, 13, for example, by bolts. Other alternatives of attachment and attachment are contemplated by those skilled in the art and are not described herein.

As shown, to ensure the accuracy of the mating of the electrical interface 100 and the liquid interface 200, the electrical interface first end 110 and the liquid interface first end 210 are preferably secured side by side to the same surface 11 on the first component 10, the electrical interface The second end 120 and the liquid interface second end 220 are preferably secured to the same surface 21 side by side at the second component 20. The interface between the first end 110 of the electrical interface and the second end 120 of the electrical interface is coplanar with the interface of the first end 210 of the liquid interface and the second end 220 of the liquid interface, which will also facilitate the automatic mounting of the electrical interface and the liquid interface. Demolition. It can be appreciated that the electrical interface first end 110 and the liquid interface first end 210 are optionally placed on different surfaces and/or the electrical interface second end 120 and the liquid interface second end 220 are placed on different surfaces, or the electrical interface The interface of the one end 110 and the second end 120 of the electrical interface is not in common with the interface of the first end 210 of the liquid interface and the second end 220 of the liquid interface, and can be achieved and will fall within the scope of the present invention.

More preferably, guides are also provided in the electrical interface and the liquid interface to further facilitate assembly errors, as will be described below in connection with specific examples.

2 is a second end 120 of the electrical interface of the electrical interface 100 of the connector assembly of FIG. 1; FIG. 3 is a first end 110 of the electrical interface of the electrical interface 100 of the connector assembly of FIG.

A high voltage interface and a low voltage interface are integrated in the electrical interface 100. Specifically, in the examples of FIGS. 2 and 3, the electrical interface first end 110 is an electrical receptacle having a PIN pin receptacle, and the electrical interface second end 120 is an electrical plug having a PIN pin, including a high voltage PIN pin 122. And low voltage PIN pin 123 and the like. In the assembled state of the electrical interface, the high and low voltage PIN pins will be inserted into the PIN pin receptacles on the first end 110 of the electrical interface to effect energization. According to the embodiment, the electrical socket (electrical interface first end 110) is mounted on the vehicle body base and the electrical plug (electrical interface second end 120) is mounted on the battery pack end; it can be understood that in different embodiments, The interchangeability of the electrical plug and the electrical receptacle is also within the scope of the present invention.

In this example, the second end 120 of the electrical interface is the battery pack end of the connector, which can be directly fixed by bolts or fixed by bolts and brackets, and the internal high voltage PIN pin 122, low voltage PIN pin 123 and high voltage interlock pin 125 There are X, Y, Z-direction floating mechanisms (see Figure 4 for details). The end of the high voltage PIN pin 122 can be an insulating material, which can prevent finger touch. It is a high voltage power supply output and charging interface of the battery pack; the low voltage PIN pin 123 can realize a low voltage power supply and communication interface, and has two short PIN pins 125. As a high voltage interlocking pin, the PE pin 124 can realize the equipotential bonding of the metal case of the battery pack end plug to the battery pack case. Correspondingly, the first end 110 of the electrical interface is the body end of the connector, which can also be fixed directly by bolts or by bolts and brackets. The first end 110 of the electrical interface has a high voltage PIN pin jack 111 for inserting the high voltage PIN pin 122, the low voltage PIN pin 123, the high voltage interlock pin 125 and the PE pin 124, a low voltage PIN pin jack 113, and a high voltage interlock pin insertion. Hole 115 and PE pin jack 114.

The electrical interface first end 110 and the electrical interface second end 120 have guides that facilitate their adaptation. In the illustrated example, the guide member includes a guide pin 121 on the second end 120 of the electrical interface and a cylindrical guide sleeve 111 on the first end 110 of the electrical interface. In this example, guide pin 121 and guide sleeve 111 are disposed at both ends of electrical interface second end 120 and electrical interface first end 110, respectively; other arrangements and arrangements are contemplated by those skilled in the art. The end of the guide pin 121 may be tapered in a tapered manner, for example, by guiding it into the guide sleeve 111 for positioning, which facilitates automatic guiding and deviation correction of the connector.

4 is an exploded view of the first end of the electrical interface of FIG. 3 showing the floating mechanism 130. As can be seen in FIG. 4, the first end of the electrical interface includes an upper cover 116, a middle baffle 117, a high and low voltage PIN pin crimp mount 118, a floating mechanism 130, and a base 119. The upper cover 116 and the base 119 form a housing of the first end 110 of the electrical interface, and the intermediate baffle 117, the fixed base 118 and the floating mechanism 130 are located in the housing.

The floating mechanism 130 is an X, Y, Z three-way floating mechanism including a pin 131, a spring 132, a first horizontal floating block 133, a horizontal floating elastic member 134, and a second horizontal floating block 135.

The pin 131 passes through the through hole of the fixing base 118, and its two ends are respectively inserted (for example, by a PIN connection) into the holes in the intermediate shutter 117 and the base 119. The first horizontal slider and the second horizontal slider are located above and below the fixed seat at the through holes, respectively. The spring 132 is sleeved on the outside of the pin shaft 131, and its both end faces abut against the intermediate baffle 117 and the first horizontal slider 133, respectively. The horizontal floating elastic member is placed in the interlayer of the mount and there is a gap between the mount and the mount. The fixing seat 118 has a gap with the horizontal floating elastic member 134, and the horizontal floating elastic member 134 can be pressed to deform at any angle on the horizontal plane. The spring 132 is pressed along the axial direction of the pin 131, so that the fixing base 118, the first horizontal floating block 133, the horizontal floating elastic member 134, and the second horizontal floating block 135 are integrally moved in the axial direction.

5 is a first end 210 of the liquid interface of the liquid interface 200 of the connector assembly of FIG. 1. As can be seen, the first end 210 of the liquid interface illustratively includes a float mechanism 211, a pressure sensor 212, and a body end stop valve of the fluid interface 200. 213 and the body end floating plate 214. The floating mechanism 211 is an X, Y, Z three-way floating mechanism, so that the liquid interface first end 210 can float in three directions with respect to the vehicle body connecting bracket 13. Illustratively, the floating mechanisms 211 may be disposed at four corners of the vehicle body end floating plate 214, respectively. The pressure sensor 212 can perform a quick change joint connection status indication.

6 is a second end 220 of the liquid interface of the liquid interface 200 of the connector assembly of FIG. 1. It can be seen that the second end 220 of the liquid interface exemplarily includes a battery pack end stop valve 221 of the liquid interface 200 and a convenient liquid interface first. The end 210 and the second end 220 of the liquid interface are fitted with a guide 222. The top end of the guide member 222 may be tapered to be adapted to be inserted into a corresponding through hole in the floating plate 214 of the first end 210 of the liquid interface to facilitate automatic guiding and deviation correction of the connector assembly.

When the liquid interface first end 210 and the liquid interface second end 220 are inserted, the vehicle body end shutoff valve 213 and the battery pack end shutoff valve 221 are turned on to allow the cooling water passage to circulate. When the liquid interface first end 210 and the liquid interface second end 220 are disconnected, the shutoff valve 213 and the shutoff valve 221 automatically shut off the coolant flow to prevent the coolant from flowing out. Since the shape of the end portions of the

shutoff valves

221 and 213 is a planar shape, the coolant does not substantially remain. The liquid-cooled battery pack of the conventional charging mode does not have the above functions.

Figure 7 is an exploded view of the floating mechanism at the second end of the liquid interface of Figure 5.

As can be seen from the figure, the floating mechanism 211 includes a bolt 2111, a nut 2112, a spring 2113, a horizontal slider 215, a horizontal floating elastic body 2115, and a vehicle body floating mounting plate 214.

A through hole is disposed in the floating mounting plate 214, and the horizontal floating elastic body 2115 is located in the through hole. The horizontal slider 215 includes two integrally formed

flaps

2114, 2116 and a connecting portion connected between the two flaps, the connecting portion passes through the horizontal floating elastic body 2115, and the two blocking

pieces

2114, 2116 respectively cover the through hole Both ends. The bolt 2111 passes through the horizontal floating block 215 to pass through the horizontal floating elastic body 2115, and can realize horizontal floating at any angle in the through hole of the floating plate 214 (the movement space is obtained by the deformation of the extruded elastic body 2115, and the through hole and the elastic body are changed. 2115 diameter can adjust the horizontal float amount). The elastic body 2115 may be a columnar rubber body, and a tooth groove may be distributed on the outer peripheral surface thereof to enhance flexibility. The nut 2112 is joined to the threaded end of the bolt 2111. The spring 2113 is sleeved on the bolt 2111, and one end thereof abuts against the horizontal floating block 214 to achieve Z-direction fixing; the other end is fixed against the nut 2112, the nut 2112 is assembled with the bracket 13, and the floating plate 214 and the shut-off valve 213 can be in the Z Float along the bolt 2111. In this example, there are a total of four similar floating mechanisms in the four corners of the floating plate. Other numbers and other arrangements are contemplated by those skilled in the art.

Those skilled in the art will also appreciate that the floating mechanism arrangement in the electrical interface 100 can equally be used with the liquid interface 200; the floating mechanism arrangement in the liquid interface 200 can equally be used for the electrical interface 100.

From the above description, those skilled in the art will appreciate that the connector assembly of the present invention can be applied to any device having both electrical and liquid connections. Typically, the connector assembly of the present invention can be applied to an electric vehicle; for example, the connector assembly can be used between an undercarriage of an electric vehicle and a power battery pack. With reference to the example of FIG. 1, it can be understood that when the connector assembly of the present invention is applied to an electric vehicle, the first component 10 can be the chassis of the electric vehicle, and the second component 20 can be the power battery package of the electric vehicle. Battery pack housing. Alternatively, the connector assembly can be secured to the chassis or battery pack housing by mounting brackets. In conjunction with the detailed description above with respect to Figure 1, the manner in which the connector assembly is mounted on the electric vehicle can be more clearly understood.

According to the invention, the battery pack is integrated with the high and low voltage electrical connectors of the vehicle body, collectively referred to as the power quick change connector, which can have automatic correction deviation (with X, Y, Z direction floating), guiding mechanism, IP67, high voltage protection Finger touch, high voltage interlock HVIL function. The liquid-cooled quick-change joints are respectively fixed on the mounting plate, and have a shut-off valve function in both directions (the coolant will not overflow and leak after the joint is disconnected), with self-correction deviation (with X, Y, Z-direction float) And steering mechanism, IP67, zero leakage and prevent air from entering the cooling system.

It can be understood that in the electric vehicle, the liquid-cooled battery pack cooling water circuit and the high-low voltage power supply quick-change connector are designed to be installed on the same battery pack cover plate to realize synchronous action; and the power quick-change connector is respectively disposed on the cover. Hydroelectric isolation is achieved on the left and right sides of the board. The water and electricity quick-change connectors all support quick insertion and removal, which can realize full automatic and quick replacement of the battery pack without manual unlocking. The floating and guiding mechanism supports quick-change connector for blind insertion and automatic correction of deviation, which can ensure reliable contact of the connector and absorb the relative vibration and assembly tolerance generated by the battery pack and the body. A sealing ring is installed between the quick-change connector and the battery pack cover to achieve IP67 sealing, which ensures that the inside of the battery pack is isolated from the outside air and water. The liquid-cooled quick-change connector has a sensor status indication function, which can be used to indicate whether the quick-change connector is connected or not.

The technical scope of the present invention is not limited to the above description, and various modifications and changes can be made to the above-described embodiments without departing from the technical idea of the present invention. Within the scope of the invention.

Claims

A connector assembly, characterized in that the connector assembly comprises:

An electrical interface, the electrical interface including a first end of the electrical interface and a second end of the electrical interface;

a liquid interface, the liquid interface includes a first end of the liquid interface and a second end of the liquid interface, and the first end of the liquid interface and the second end of the liquid interface each have a shutoff valve;

And, the first end of the electrical interface and the first end of the liquid interface are fixed to the first component, and the second end of the electrical interface and the second end of the liquid interface are fixed to the second component.
The connector assembly of claim 1 wherein said electrical interface has a high voltage interface and a low pressure interface integrated therein and/or said liquid interface is a coolant interface.
The connector assembly of claim 1 wherein said first end of said electrical interface and said first end of said liquid interface are fixed side by side to said same surface on said first member, said second end of said electrical interface The second end of the liquid interface is fixed to the same surface side by side on the second component.
The connector assembly according to any one of claims 1 to 3, wherein a joint surface of the first end of the electrical interface and the second end of the electrical interface is opposite to the first end of the liquid interface and the liquid interface The joint surfaces of the two ends are coplanar.
The connector assembly of any of claims 1 to 3, wherein the first end of the electrical interface and the second end of the electrical interface have a guide for facilitating their adaptation, and/or the liquid The first end of the interface and the second end of the liquid interface have guides for facilitating their adaptation.
A connector assembly according to any one of claims 1 to 3, wherein:

One of the first end of the electrical interface and the second end of the electrical interface is a socket end having a PIN pin receptacle, the socket end being mounted to the first component by a first floating mechanism; and/or

The first end of the liquid interface is mounted to the first component by a second floating mechanism or the second end of the liquid interface is mounted to the second component by a second floating mechanism.
The connector assembly of claim 6 wherein said socket end includes a housing comprised of an upper cover and a base, wherein said housing has an intermediate baffle, a mounting for arranging a PIN pin, and said a first floating mechanism, wherein the first floating mechanism comprises:

a pin, the pin shaft passing through the through hole of the fixing seat, the two ends of which are respectively inserted into the hole in the middle baffle and the base;

a first horizontal floating block and a second horizontal floating block respectively located above and below the fixing seat at the through hole; a spring, the spring sleeve is outside the pin shaft, and both end faces thereof respectively Relying on the intermediate baffle and the first horizontal slider;

A horizontal floating elastic member that is placed in the interlayer of the mount and has a gap with the mount.
The connector assembly of claim 6 wherein said second floating mechanism comprises:

a floating mounting plate on which a through hole is arranged;

a horizontal floating elastomer located in the through hole;

a horizontal slider comprising two flaps and a joint connected between the two flaps, the joint passing through the horizontal floating elastic body, and the two flaps respectively covering the pass Both ends of the hole;

a bolt passing through the horizontal slider to pass through the horizontal floating elastomer;

a nut that is coupled to the threaded end of the bolt;

a spring sleeved on the bolt and having its two ends abut against the horizontal slider and the nut, respectively.
The connector assembly according to claim 8, wherein said elastic body is a columnar rubber body, and a tooth groove is distributed on an outer peripheral surface thereof.
A battery connection system, characterized in that the battery connection system comprises a connector assembly according to any of the preceding claims 1 to 9.
The battery connection system according to claim 10, wherein said battery connection system is a connection system of a power battery pack of the electric vehicle, and said first member is a vehicle body chassis of said electric vehicle, and said second member is A battery pack case for a power battery pack of an electric vehicle.
The battery connection system according to claim 11, wherein the connector assembly is fixed to the underbody and the battery pack case by a mounting bracket.