WO2020177759A1

WO2020177759A1 - Electrical connector, refrigerant pluggable connecting element, insert end, and receiving end

Info

Publication number: WO2020177759A1
Application number: PCT/CN2020/078134
Authority: WO
Inventors: 张建平; 黄春华
Original assignee: 奥动新能源汽车科技有限公司
Priority date: 2019-03-06
Filing date: 2020-03-06
Publication date: 2020-09-10

Abstract

An electrical connector (40), provided with an insert end (50) and a receiving end (60). The insert end comprises: a mount base (51); an electrical connecting part (41), and a refrigerant connecting part (42). The refrigerant connecting part and the electrical connecting part are arranged on a same side of the mount base. The electrical connecting part is used for electrical connection and signal transmission. The refrigerant connecting part is used for communicating with a cooling medium. The refrigerant connecting part is provided with a refrigerant pluggable connecting element connector (20), which comprises a connector valve core (21), a connector valve plug (22), a connector valve housing (23), and a connector flexible element (25). The insert end is adapted to the receiving end. Also related is a refrigerant pluggable connecting element (10) comprising the refrigerant pluggable connecting element connector and a refrigerant pluggable connecting element plug (30) adapted thereto. The insert end of the electrical connector integrates together the electrical connecting part and the refrigerant connecting part, is convenient to manufacture, and reduces manufacturing costs for the electrical connector. The refrigerant pluggable connecting element connector is liquid-tight and is not prone to risks such as liquid dripping and leakage.

Description

Electric connector and its refrigerant plug, inserting end and receiving end

This application claims the priority of the Chinese patent application 2019101681474 with the filing date of March 6, 2019 and the Chinese patent application 201910167826X with the filing date of March 6, 2019. This application quotes the full text of the aforementioned Chinese patent application.

Technical field

The invention relates to the field of electric vehicles, in particular to an electrical connector and its refrigerant plug, insertion end and receiving end, and also to a battery pack and quick-change bracket containing the electrical connector, and an electric vehicle containing them.

Background technique

At present, the energy acquisition of electric vehicles mainly includes two methods: charging and switching. Since the power exchange method can realize the rapid supply of electric energy, reduce the waiting time of customers and improve the utilization rate of the power exchange station. In addition, the battery can be charged centrally at night, realizing the "peak shaving and energy storage" of the electric load. At the same time, the comprehensive utilization efficiency of power equipment is improved, and the service life of the battery is prolonged, which has high promotion value and economic significance.

Pure electric vehicles solve the problem of vehicle endurance. The first solution is to increase the power of the battery pack, but the cost of the vehicle and the actual charging of the vehicle are more prominent. To solve the battery life problem of electric vehicles, the battery pack can also be replaced by quick change, which is the traditional fuel vehicle refueling mode. The current quick change battery pack replacement speed is faster than the refueling mode, and can greatly reduce the cost of electric vehicles.

However, the battery pack generates a lot of heat during use. Therefore, it is necessary to cool the battery pack by means of water cooling. At present, the interface between the water cooling pack and the battery pack is usually set separately from the electrical connection interface of the battery pack to facilitate the water cooling pack or The battery pack is replaced separately, but this separate arrangement greatly increases the manufacturing cost of the quick-change assembly of the electric vehicle.

At the same time, in a battery-swappable electric vehicle, the cooling pipe provided on the quick-change battery pack is connected to the cooling system on the electric vehicle, and the circulation of the coolant is used to realize the heat balance of the quick-change battery pack. However, the current quick-change battery pack and the plug-in structure on the quick-change bracket assembly are not perfect in liquid tightness, and dripping and leakage may occur, which may cause safety hazards such as electric leakage. In addition, the current connectors also have some problems in the butt positioning, which are prone to problems such as misplaced insertion.

Summary of the invention

In order to solve the above technical problems in the prior art, the present invention provides an electrical connector and its refrigerant plug, insertion end and receiving end, as well as a battery pack and quick-change bracket containing the electrical connector, and Electric vehicles containing them.

The present invention solves the above technical problems through the following technical solutions:

An electrical connector insertion end, which includes: a mounting seat;

The mounting base is provided with an electrical connection portion and a refrigerant connection portion, the refrigerant connection portion and the electrical connection portion are located on the same side of the mounting base, the electrical connection portion is used for power connection and signal transmission, the refrigerant The connection part is used for communicating the cooling medium.

A refrigerant plug connector, comprising: a joint valve core, a joint valve plug, a joint valve housing, and a joint elastic member; one end of the joint valve housing is an open end, and the open end is used to receive a refrigerant plug Plug; the joint valve core is fixed inside the joint valve housing, and a refrigerant channel is formed between the open end and the joint valve housing; the joint valve plug is arranged around the joint valve core, And can reciprocate between an open position to open the refrigerant passage and a closed position to close the refrigerant passage; the joint elastic member biases the joint valve plug in a direction that moves toward the closed position Connector valve plug.

The positive improvement effect of the present invention is that the insertion end of the electrical connector integrates the electrical connection part and the refrigerant connection part together, which facilitates manufacturing and reduces the manufacturing cost of the electrical connector. The liquid tightness of the refrigerant plug joint is relatively good, so that risks such as liquid dripping are not easily generated.

Description of the drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of an insertion end of an electrical connector according to a preferred embodiment of the present invention.

Fig. 2 is another three-dimensional structural diagram of the insertion end of the electrical connector according to the preferred embodiment of the present invention.

Fig. 3 is a schematic diagram of a three-dimensional structure of a refrigerant plug according to a preferred embodiment of the present invention.

Fig. 4 is a schematic cross-sectional structure diagram of a refrigerant connector according to a preferred embodiment of the present invention.

Fig. 5 is another schematic cross-sectional structure diagram of the refrigerant connector according to the preferred embodiment of the present invention, wherein the refrigerant connector is in a normally connected state.

Fig. 6 is another cross-sectional structural diagram of the refrigerant connector according to the preferred embodiment of the present invention, in which the refrigerant connector is in an extreme insertion state.

Fig. 7 is a schematic diagram of a three-dimensional structure of a receiving end of an electrical connector according to a preferred embodiment of the present invention.

Fig. 8 is another three-dimensional structural diagram of the receiving end of the electrical connector according to the preferred embodiment of the present invention.

Fig. 9 is a three-dimensional structural diagram of an electrical connector according to a preferred embodiment of the present invention.

Fig. 10 is a schematic cross-sectional structure diagram of an electrical connector according to a preferred embodiment of the present invention.

Fig. 11 is a schematic diagram of a three-dimensional structure of a battery pack according to a preferred embodiment of the present invention.

Fig. 12 is a three-dimensional structural diagram of a quick-change bracket according to a preferred embodiment of the present invention.

Fig. 13 is a structural diagram of a battery pack installed on a quick-change bracket according to a preferred embodiment of the present invention.

Description of Reference Signs: refrigerant connector 10; refrigerant connector connector 20; connector valve core 21; connector valve plug 22; connector valve housing 23; open end 231; refrigerant passage 232; step surface 233; first flow port 24; joint elastic member 25; first sealing member 26; second sealing member 27; insertion groove 271; sealing convex ring 272; refrigerant plug connector 30; plug valve core 31; plug valve housing 32; insertion end 321; Limiting surface 322; second circulation port 323; plug elastic 33; electrical connector 40; electrical connection portion 41; refrigerant connection portion 42; electrical connector insertion end 50; mounting base 51; electrical connection portion 52; high voltage terminal 521 Low-voltage signal terminal 522; refrigerant connection portion 53; water inlet 531; water outlet 532; first groove 54; second groove 55; positioning pin 56; electrical connector receiving end 60; jack 61; battery pack 70; Quick change bracket 80;

detailed description

In the following, the present invention will be further described by way of embodiments with reference to the accompanying drawings, but the present invention is not limited to the scope of the following embodiments.

FIG. 1 is a schematic diagram of a three-dimensional structure of an insertion end 50 of an electrical connector according to this embodiment. FIG. 2 shows the electrical connector insertion end 50 viewed from the opposite side of FIG. 1.

The electrical connector insertion end 50 includes a mounting seat 51. The mounting base 51 is provided with an electrical connection portion 52 and a refrigerant connection portion 53, the refrigerant connection portion 53 and the electrical connection portion 52 are located on the same side of the mounting base 51, the electrical connection portion 52 is used for power connection and signal transmission, and the refrigerant connection portion 53 is used for Connect the cooling medium. The cooling medium can be a liquid such as water, ethylene glycol, or air-conditioning hot and cold gas.

In this embodiment, the refrigerant connection portion 53 is located on both sides of the electrical connection portion 52. Alternatively, those skilled in the art may also provide the refrigerant connection portion 53 on the same side of the electrical connection portion 52 instead of on both sides.

In this embodiment, the refrigerant connection portion 53 is provided on both sides of the electrical connection portion 52 in the longitudinal direction of the mounting base 51. Alternatively, the refrigerant connection portion 53 may also be provided in the electrical connection in the vertical direction of the mounting base 51. Section 52 on both sides.

The mounting portion is provided with a connecting surface, the connecting surface is provided with a first groove 54 and a second groove 55, the electrical connecting portion 52 is arranged in the first groove 54, and the refrigerant connecting portion 53 is arranged in the second groove 55.

Different grooves are provided to separate the electrical connection portion 52 and the refrigerant connection portion 53. In this way, even if the refrigerant connection portion 53 has accidents such as liquid leakage, it can be avoided to affect the electrical connection portion 52 and cause the electrical connection portion. 52 short circuit or leakage.

The refrigerant connection part 53 includes a water inlet 531 and a water outlet 532. The water inlet 531 and the water outlet 532 are respectively provided on both sides of the electrical connection part 52. The cooling medium enters from the water inlet 531 and flows out from the water outlet 532.

The electrical connection part 52 includes a low-voltage signal terminal 522 and a high-voltage terminal 521. The height of the low-voltage signal terminal 522 is lower than that of the high-voltage terminal 521. High and low voltage electrical appliances can use the principle of low voltage to control high voltage during the automatic connection process to ensure the safe and reliable connection of high and low voltage points. Low voltage control high voltage: The height of the low voltage signal terminal 522 is lower than the high voltage terminal 521. When the battery pack 70 is installed, the high voltage terminal 521 is connected before the low voltage signal terminal 522. After the low voltage signal terminal 522 is in good contact, the high voltage terminal 521 can be contacted and energized; when removing the battery The low-voltage terminal is disconnected before the high-voltage terminal 521, that is, the low-voltage is disconnected first, that is, the high-voltage forced power-off is controlled to avoid the high-voltage electric arc during the splitting process.

The electrical connection part 52 further includes a positioning pin 56. The positioning pin 56 is used for positioning the insertion position of the insertion end 50 of the electrical connector to ensure insertion accuracy.

Preferably, the refrigerant connecting portion 53 includes a refrigerant connector plug or a refrigerant connector connector. If the refrigerant connecting portion 53 is provided with a refrigerant plug, the electrical connector receiving end 60 is provided with a corresponding refrigerant plug connector. If the refrigerant connecting portion 53 is provided with a refrigerant plug connector, the electrical connector receiving end 60 is provided with a corresponding refrigerant plug connector.

Figures 3-6 illustrate the refrigerant connector 10 of this embodiment.

As shown in FIGS. 3-4, the refrigerant connector 10 includes a refrigerant connector connector 20 and a refrigerant connector plug 30. The refrigerant plug connector 20 and the refrigerant plug plug 30 can cooperate with each other to achieve liquid communication. The refrigerant may be a liquid such as water, ethylene glycol, or air-conditioning hot and cold gas.

The refrigerant plug connector 20 includes a connector valve core 21, a connector valve plug 22, a connector valve housing 23, and a connector elastic member 25.

One end of the joint valve housing 23 is an open end 231, and the open end 231 is used to receive a refrigerant plug.

The joint valve core 21 is fixed inside the joint valve housing 23, and a refrigerant channel 232 is formed between the open end 231 and the joint valve housing 23. In this embodiment, the joint valve core 21 is fixed to the inside of the joint valve housing 23 through a threaded connection. The end of the joint valve core 21 is provided with an external thread, and the inside of the joint valve housing 23 is provided with a threaded hole, and the joint valve core 21 is threadedly engaged in the threaded hole. In other embodiments, the joint valve core may also be fixed inside the joint valve housing by means of welding, bonding, or the like.

The joint valve plug 22 is arranged around the joint spool 21 and can reciprocate between an open position where the refrigerant passage 232 is opened and a closed position where the refrigerant passage 232 is closed.

The joint elastic member 25 biases the joint valve plug 22 in a direction that causes the joint valve plug 22 to move toward the closed position.

In this embodiment, the joint elastic member 25 is a spring. In other embodiments, other suitable elastic members can also be selected.

The joint valve housing 23 is provided with a first circulation port 24, and the cooling liquid enters or flows out of the inner cavity of the joint valve housing 23 from the first circulation port 24.

The refrigerant plug connector 30 includes a plug valve core 31, a plug valve housing 32, and a plug elastic member 33.

The insertion end 321 of the plug valve housing 32 is open.

The plug valve core 31 is disposed inside the plug valve housing 32 and can reciprocate between a first position that opens the opening of the insertion end 321 and a second position that closes the opening of the insertion end 321.

The plug elastic member 33 biases the plug valve core 31 in a direction that causes the plug valve core 31 to move toward the second position.

The insertion end 321 is used to insert the open end 231.

In this embodiment, the plug elastic member 33 is a spring. In other embodiments, other suitable elastic members may also be selected.

An insertion hole is provided in the plug valve housing 32, the plug spool 31 is slidably inserted into the insertion hole, and the spring is sleeved on the plug spool 31 and abuts against the plug valve housing 32 and the plug spool 31 between.

A second circulation port 323 is provided in the plug valve housing 32, and the cooling liquid enters or flows out of the inner cavity of the plug valve housing 32 from the second circulation port 323.

As shown in Figure 5, when the refrigerant connector 10 is normally connected, the refrigerant connector plug 30 is inserted into the refrigerant connector connector 20, and the insertion end 321 of the plug valve housing 32 of the refrigerant connector plug 30 abuts against the refrigerant connector The connector valve plug 22 of the connector connector 20 makes the connector valve plug 22 move toward the open position against the elastic force of the connector elastic member 25, the refrigerant passage 232 is opened, and at the same time, the connector valve core 21 of the refrigerant connector connector 20 abuts against the refrigerant plug The plug spool 31 of the connector plug 30 moves the plug spool 31 toward the first position to open the opening of the insertion end 321. In this way, the opening of the insertion end 321 and the refrigerant passage 232 are opened at the same time, the refrigerant connector connector 20 and the refrigerant connector plug 30 are in communication with each other, so that the coolant (refrigerant) flows out or flows into the battery pack through the refrigerant connector 10 Battery pack.

The refrigerant plug 10 realizes fluid communication through two-way extrusion, and realizes that each has a self-locking function but can be automatically communicated when connected, but does not drip when disassembled.

The refrigerant plug connector 20 further includes a first seal 26, which is provided between the outer circumference of the connector valve plug 22 and the inner wall of the connector valve housing 23.

By providing the first sealing member 26 between the outer circumference of the joint valve plug 22 and the inner wall of the joint valve housing 23, the sealing performance between the joint valve plug 22 and the inner wall of the joint valve housing 23 is strengthened.

The inner wall of the joint valve housing 23 is provided with a groove, and the first sealing member 26 is arranged in the groove.

The first seal 26 is an O-ring.

The end surface of the connector plug 22 facing the open end 231 is provided with a second seal 27.

By providing the second seal 27 on the end surface of the end of the joint valve plug 22 facing the open end 231, the sealing performance between the refrigerant connector joint 20 and the refrigerant connector plug 30 when they are joined is enhanced.

The second sealing member 27 extends toward the inner peripheral surface of the joint valve plug 22 to seal the gap between the joint valve plug 22 and the joint valve core 21.

In this way, the second sealing member 27 can not only strengthen the sealing member between the refrigerant connector connector 20 and the refrigerant connector plug 30, but also enhance the sealing performance between the connector valve core 21 and the connector valve plug 22, achieving two goals.

The second sealing member 27 is sleeved on the end of the joint valve plug 22 facing the open end 231. The second sealing member 27 is arranged in the form of a kit for easy installation.

The second sealing member 27 has an annular structure and is provided with an insertion groove 271 and a sealing convex ring 272. The end of the joint valve plug 22 facing the open end 231 is provided with an insertion portion for engaging the insertion groove 271, and the sealing convex ring 272 is arranged in the insertion groove The opposite side of 271.

The second sealing member 27 is provided with at least two sealing convex rings 272. The two sealing convex rings 272 can achieve two seals to ensure the seal between the refrigerant plug connector 20 and the refrigerant plug connector 30 when they are joined.

The end of the joint valve core 21 facing the open end 231 has a tapered structure and tapers toward the inside of the joint valve housing 23. In this way, a tapered refrigerant passage 232 is formed between the joint valve core 21 and the joint valve housing 23. In this way, the joint valve plug 22 can easily close the refrigerant passage 232.

A step surface 233 is provided inside the joint valve housing 23, and the step surface 233 is used to limit the moving distance of the joint valve plug 22 toward the open position.

As shown in FIG. 6, the refrigerant connector plug 30 has been inserted into the extreme position of the refrigerant connector connector 20, and the connector valve plug 22 abuts against the step surface 233.

The outer surface of the plug valve housing 32 of the refrigerant connector plug 30 of this embodiment is also provided with a limit surface 322, which abuts against the end of the connector valve housing 23 to avoid the refrigerant plug plug 30 Over-insertion.

The inner peripheral surface of the open end 231 of the joint valve housing 23 is provided with an inclined guide surface.

The outer peripheral surface of the insertion end 321 is provided with an inclined guide structure, and the inclined guide structure is adapted to the inclined guide surface.

In this way, the refrigerant plug connector 30 is easily and accurately inserted into the refrigerant plug connector 20.

Figures 7-8 illustrate the electrical connector receiving end 60 of this embodiment. The electrical connector receiving end 60 is adapted to the electrical connector inserting end 50 as described above.

The electrical connector receiving end 60 is provided with mating terminals corresponding to the low voltage signal terminal 522 and the high voltage terminal 521 of the electrical connector insertion end 50. In addition, a socket 61 corresponding to the positioning pin 56 is provided for positioning the insertion end 50 of the electrical connector.

9-10 illustrate the electrical connector 40 of this embodiment. The electrical connector 40 includes the electrical connector insertion end 50 as above and the electrical connector receiving end 60 as above.

When the electrical connector insertion end 50 and the electrical connector receiving end 60 are engaged, the electrical connector 40 realizes electrical communication and cooling medium communication.

The electrical connector 40 further includes an electrical connection portion 41 and a refrigerant connection portion 42, and the refrigerant connection portion 42 includes the refrigerant connector 10 as described above.

The electrical connector 40 includes an electrical connector insertion end 50 and an electrical connector receiving end 60. The electrical connector insertion end 50 is provided with one of a refrigerant connector plug 30 and a refrigerant connector connector 20, and the electrical connector receiving end 60 The other of the refrigerant plug connector 30 and the refrigerant plug connector 20 is provided therein.

The use of the above-mentioned refrigerant plug 10 in the electrical connector 40 can improve its own liquid tightness and prevent the occurrence of liquid dripping and causing short circuit or leakage of the electrical connector 40.

FIG. 11 illustrates the battery pack 70 of this embodiment, and the battery pack 70 includes the electrical connector receiving end 60 as above.

The battery pack 70 includes a casing. A cooling medium channel is provided in the bottom plate of the casing. The cooling medium connecting portion 53 leads to the cooling medium channel. Specifically, the water inlet 531 and the water outlet 532 lead to the cooling medium channel. The refrigerant passage may be a serpentine passage or an annular passage formed integrally with the housing. The refrigerant channel may also be a serpentine channel or an annular channel formed between two plates, and the two plates constitute the bottom plate of the housing.

FIG. 12 illustrates the quick-change bracket 80 of this embodiment, and the quick-change bracket 80 includes the electrical connector insertion end 50 as above.

As shown in FIG. 13, the electrical connector insertion end 50 is adapted to the electrical connector receiving end 60 of the battery pack 70, so that the battery pack 70 is installed on the quick-change bracket 80 and water and electricity are connected.

This embodiment also provides an electric vehicle, which includes the above battery pack 70 and the above quick-change bracket 80.

The electrical connector insertion end 50 integrates the electrical connection portion 52 and the refrigerant connection portion 53 together, which facilitates manufacturing, reduces the manufacturing cost of the electrical connector 40, and correspondingly reduces the receiving end, which is compatible with or includes it, The manufacturing cost of the electrical connector 40, the quick-change bracket 80, the battery pack 70, and the electric vehicle.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply the pointed device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention, unless otherwise specified in the context.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example and the protection scope of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

A refrigerant plug connector, characterized in that it comprises: a connector valve core, a connector valve plug, a connector valve housing, and a connector elastic member;

One end of the joint valve housing is an open end, and the open end is used to receive a refrigerant plug;

The joint valve core is fixed inside the joint valve housing, and a refrigerant passage is formed between the open end and the joint valve housing;

The connector valve plug is arranged around the connector valve core and can reciprocate between an open position for opening the refrigerant passage and a closed position for closing the refrigerant passage;

The joint elastic member biases the joint valve plug in a direction that causes the joint valve plug to move toward the closed position.
The refrigerant plug connector of claim 1, wherein the refrigerant plug connector further comprises a first sealing element, and the first sealing element is provided on the outer periphery of the valve plug of the connector and the connector Between the inner walls of the valve housing.
The refrigerant plug connector according to claim 2, wherein the inner wall of the connector valve housing is provided with a groove, and the first sealing member is provided in the groove.
The refrigerant plug connector according to claim 2, wherein the first sealing member is an O-ring.
The refrigerant plug connector according to claim 2, wherein the end surface of the end of the connector valve plug facing the open end is provided with a second seal.
The refrigerant plug connector according to claim 5, wherein the second sealing member extends toward the inner peripheral surface of the connector valve plug for sealing between the connector valve plug and the connector valve core The gap between.
The refrigerant plug connector according to claim 6, wherein the second sealing member is sleeved on an end of the connector valve plug facing the open end.
The refrigerant plug connector according to claim 7, wherein the second sealing member has an annular structure and is provided with an insertion groove and a sealing convex ring, and an end of the connector valve plug facing the open end is provided with In the insertion part engaging the insertion groove, the sealing convex ring is provided on the opposite side of the insertion groove.
The refrigerant plug connector according to claim 8, wherein the second sealing member is provided with at least two sealing convex rings.
The refrigerant plug connector according to claim 1, wherein the end of the valve core of the connector facing the open end has a tapered structure and tapers toward the inside of the connector valve housing.
The refrigerant plug connector according to claim 1, wherein a step surface is provided inside the connector valve housing, and the step surface is used to limit the moving distance of the connector valve plug toward the open position .
The refrigerant plug joint according to claim 1, wherein the inner peripheral surface of the open end of the joint valve housing is provided with an inclined guide surface.
A refrigerant connector, characterized in that it comprises: the refrigerant connector connector and the refrigerant connector plug according to any one of claims 1-12, the refrigerant connector connector and the refrigerant connector The plugs can cooperate with each other to achieve fluid communication.
The refrigerant connector of claim 13, wherein the refrigerant connector plug comprises: a plug valve core, a plug valve housing, and a plug elastic member;

The insertion end of the plug valve housing is open;

The plug valve core is arranged inside the plug valve housing and can reciprocate between a first position that opens the opening of the insertion end and a second position that closes the opening of the insertion end;

The plug elastic member biases the plug valve core in a direction that causes the plug valve core to move toward the second position;

The insertion end is used to insert the open end.
The refrigerant plug of claim 14, wherein the outer peripheral surface of the insertion end is provided with an inclined guide structure, and the inclined guide structure is adapted to the inclined guide surface.
An electrical connector, characterized in that it comprises an electrical connection part and a refrigerant connection part, and the refrigerant connection part comprises the refrigerant connector according to claim 13.
An insertion end of an electrical connector, characterized in that it comprises: a mounting seat;

The mounting base is provided with an electrical connection portion and a refrigerant connection portion, the refrigerant connection portion and the electrical connection portion are located on the same side of the mounting base, the electrical connection portion is used for power connection and signal transmission, the refrigerant The connection part is used for communicating the cooling medium.
18. The electrical connector insertion end of claim 17, wherein the refrigerant connection portion is located on both sides of the electrical connection portion.
The electrical connector insertion end of claim 17, wherein the mounting portion is provided with a connecting surface, the connecting surface is provided with a first groove and a second groove, and the electrical connecting portion is provided at the In the first groove, the refrigerant connecting portion is arranged in the second groove.
17. The electrical connector insertion end of claim 17, wherein the refrigerant connection portion includes a water inlet and a water outlet, and the electrical connection portion includes a low-voltage signal terminal and a high-voltage terminal.
The insertion end of the electrical connector according to claim 20, wherein the water inlet and the water outlet are respectively provided on both sides of the electrical connection part.
The electrical connector insertion end of claim 20, wherein the height of the low voltage signal terminal is lower than the high voltage terminal.
18. The insertion end of the electrical connector according to claim 17, wherein the electrical connection part further comprises a positioning pin.
The plug-in end of the electrical connector according to any one of claims 17 to 23, wherein the refrigerant connection part comprises a refrigerant connector plug or a refrigerant connector joint.
An electrical connector receiving end, characterized in that the electrical connector receiving end is adapted to the electrical connector inserting end according to any one of claims 17-24.
An electrical connector, characterized in that it comprises the electrical connector insertion end according to any one of claims 17-24 and the electrical connector receiving end according to claim 25.
A battery pack, characterized in that it comprises the receiving end of the electrical connector according to claim 25.
The battery pack according to claim 27, wherein the battery pack comprises a casing, a cooling medium channel is provided in the bottom plate of the casing, and the cooling medium connecting portion leads to the cooling medium channel.
A quick-change bracket, characterized in that it comprises the electrical connector insertion end according to any one of claims 17-24.
An electric vehicle, characterized in that it comprises the battery pack according to claim 27 and the quick-change bracket according to claim 29.