CN219760011U - Electrical connector and electrical connection assembly - Google Patents

Abstract

The utility model discloses an electric connector and an electric connection assembly. The electrical connector includes: the electric transmission body is hollow and tubular. The inner cavity of the electric transmission body serves as a cooling fluid circulation passage, and first and second fluid through holes are formed in peripheral walls of both ends of the electric transmission body, respectively, to allow the cooling fluid to flow into the electric transmission body via one of the first and second fluid through holes and to flow out of the electric transmission body via the other of the first and second fluid through holes. In the present utility model, the electric transmitting body of the electric connector is used for transmitting both electric current and cooling fluid, and therefore, the temperature rise of the electric connector can be reduced.

Description

Electrical connector and electrical connection assembly

Technical Field

The present utility model relates to an electrical connector and an electrical connection assembly including the same, and more particularly, to an electrical connector and an electrical connection assembly for electrically connecting a charging gun and a battery pack.

Background

In the prior art, in order to achieve an electrical connection between the charging gun and the battery pack, it is often necessary to provide a charging cradle, a cable and a connector. The charging stand includes a charging stand housing and a charging terminal disposed in the charging stand housing. The connector includes a connector housing and connection terminals provided in the connector housing. One end of the cable is electrically connected with the charging terminal of the charging seat. The other end of the cable is electrically connected with the connection terminal of the connector. Therefore, in the related art, it is necessary to provide a separate charging terminal for the charging stand and a separate connecting terminal for the connector, which results in high costs. Moreover, in the related art, it is necessary to crimp or weld the end portion of the cable to the charging terminal of the cradle or the connection terminal of the connector, which may reduce manufacturing efficiency. In addition, in the prior art, there is a large resistance at a connection portion between the cable and the charging terminal or at a connection portion between the cable or the connecting terminal, which may cause a large temperature rise of the product, seriously affecting the use safety of the charging device.

Furthermore, in the prior art, in order to increase the charging speed, the cable needs to carry a large current, which leads to a higher temperature rise. To reduce the temperature rise, large-section cables are generally used, which leads to increased costs and increased volume.

Further, in the related art, in order to prevent a large temperature rise from occurring at the crimping or welding portion between the cable and the charging terminal or the cable and the connection terminal, it is necessary to provide a heat sink or a cooling fan. This also leads to increased costs and increased volume.

Disclosure of Invention

The present utility model is directed to solving at least one of the above-mentioned problems and disadvantages of the prior art.

According to one aspect of the present utility model, an electrical connector is provided. The electrical connector includes: the electric transmission body is hollow and tubular. The inner cavity of the electric transmission body serves as a cooling fluid circulation passage, and first and second fluid through holes are formed in peripheral walls of both ends of the electric transmission body, respectively, to allow the cooling fluid to flow into the electric transmission body via one of the first and second fluid through holes and to flow out of the electric transmission body via the other of the first and second fluid through holes.

According to an exemplary embodiment of the present utility model, the electrical connector further comprises: a mating end portion connected to one end of the electrical transmission body and serving as a charging terminal of the charging stand; and a connection end portion connected to the other end of the electrical transmission body and serving as a connection terminal of the connector.

According to another exemplary embodiment of the present utility model, the electrical connector is a single piece.

According to another aspect of the present utility model, an electrical connection assembly is provided. The electrical connection assembly includes: two electrical connectors; an insulated pipe communication member fitted over one end of the two electric transmission bodies for communicating the first fluid through holes of the two electric transmission bodies so that the inner cavities of the two electric transmission bodies communicate with each other; and the two insulating pipe joint pieces are sleeved on the other ends of the two electric transmission bodies respectively and are communicated with the second fluid through holes of the two electric transmission bodies respectively. One of the two coupling members is adapted to interface with a cooling fluid supply pipe and the other is adapted to interface with a cooling fluid return pipe such that cooling fluid can flow into and out of the electrical transmission body via the two coupling members.

According to another exemplary embodiment of the present utility model, the pipe communication includes: two tubular parts respectively sleeved on one ends of the two electric transmission bodies; and a communication portion connected between the two tubular portions and having a communication hole through which the first fluid through holes of the two electric transmission bodies communicate with each other.

According to another exemplary embodiment of the present utility model, two first sealing rings are sleeved on one end of the electric transmission body, and the two first sealing rings are respectively positioned at the inner sides of two ends of the tubular part and are pressed between the tubular part and the electric transmission body so as to realize sealing between the two.

According to another exemplary embodiment of the present utility model, a protruding first mounting portion is formed on an outer circumferential surface of the tubular portion, a first screw hole is formed on the first mounting portion, and a first positioning hole corresponding to the first screw hole is formed on one end of the electric transmission body; the electrical connection assembly further includes a first screw threadedly coupled to the first threaded bore and inserted into the first locating bore to prevent axial movement and circumferential rotation of the tube communication member relative to the electrical transmission body.

According to another exemplary embodiment of the present utility model, the pipe joint member includes: a tubular body sleeved on the other end of the electric transmission body; and a pipe joint connected to the tubular body and having a connection hole adapted to interface with the cooling fluid supply pipe or the cooling fluid return pipe, and the connection hole of the pipe joint communicates with the second fluid through hole of the electrical transmission body.

According to another exemplary embodiment of the present utility model, two second sealing rings are sleeved on the other end of the electric transmission body, and the two second sealing rings are respectively positioned at the inner sides of the two ends of the tubular body and are pressed between the tubular body and the electric transmission body so as to realize sealing between the two.

According to another exemplary embodiment of the present utility model, a protruding second mounting portion is formed on an outer circumferential surface of the tubular body, a second screw hole is formed on the second mounting portion, and a second positioning hole corresponding to the second screw hole is formed on the other end of the electric transmission body; the electrical connection assembly further includes a second screw threadedly coupled to the second threaded bore and inserted into the second locating hole to prevent axial movement and circumferential rotation of the coupling member relative to the electrical transmission body.

According to another exemplary embodiment of the present utility model, the mating end portion of the electrical connector has a hollow cylindrical shape and is connected to one end of the electrical transmission body; the electrical connection assembly further includes a sealing plug that is inserted into one end of the electrical transmission body to seal the one end of the electrical transmission body.

According to another exemplary embodiment of the present utility model, the electrical connection assembly further comprises: the charging seat comprises a charging seat shell. The mating end of the electrical connector is inserted into the charging seat housing to form a charging terminal of the charging seat for mating connection with a mating terminal on the charging gun.

According to another exemplary embodiment of the utility model, the connection end of the electrical connection is flat and is connected to the other end of the electrical transmission body, which is sealed by the connection end.

According to another exemplary embodiment of the present utility model, the electrical connection assembly further comprises: a connector includes a connector housing. The connection end of the electrical connector is inserted into the connector housing to constitute a connection terminal of the connector for electrical connection with a bus bar in a battery pack.

According to another exemplary embodiment of the present utility model, the two pipe joint members are located outside the connector housing for connection with a cooling fluid circuit located outside the battery pack; or the two pipe joint members are located inside the connector housing for connection with a cooling fluid circuit located inside the battery pack.

According to another aspect of the present utility model, an electrical connection assembly is provided. The electrical connection assembly includes: two electrical connectors; an insulated first pipe connection fitting over one end of two electrical transmission bodies, a first fluid through-hole for communicating one end of the two electrical transmission bodies and connecting the first fluid through-hole to a cooling fluid circuit; and an insulated second pipe connection fitting over the other ends of the two electrical transmission bodies, a second fluid through hole for communicating the other ends of the two electrical transmission bodies and connecting the second fluid through hole to a cooling fluid circuit.

According to another exemplary embodiment of the present utility model, the first pipe connection includes: two first tubular parts respectively sleeved on one ends of the two electric transmission bodies; a first communication portion connected between the two first tubular portions and having a first communication hole; and a first pipe joint connected to the first communication portion and having a first connection hole communicating with the first communication hole, the first communication hole communicating with the first fluid through holes of the two electric transmission bodies.

According to another exemplary embodiment of the present utility model, a first protrusion is formed on an outer circumferential surface of the first tubular portion, a first screw hole is formed on the first protrusion, and a first positioning insertion hole corresponding to the first screw hole is formed on one end of the electric transmission body; the electrical connection assembly also includes a first threaded member threadedly coupled to the first threaded bore and inserted into the first positioning receptacle to prevent axial movement and circumferential rotation of the first tubular connection member relative to the electrical transmission body.

According to another exemplary embodiment of the present utility model, the second pipe connection includes: two second tubular parts respectively sleeved on the other ends of the two electric transmission bodies; a second communication portion connected between the two second tubular portions and having a second communication hole; and a second pipe joint connected to the second communication portion and having a second connection hole that communicates with the second communication hole that communicates with the second fluid through holes of the two electric transmission bodies.

According to another exemplary embodiment of the present utility model, a second boss is formed on an outer peripheral surface of the second tubular portion, a second screw hole is formed on the second boss, and a second positioning insertion hole corresponding to the second screw hole is formed on the other end of the electric transmission body; the electrical connection assembly also includes a second threaded member threaded into the second threaded bore and inserted into the second locating receptacle to prevent axial movement and circumferential rotation of the second tubular connection member relative to the electrical transmission body.

According to another aspect of the present utility model, an electrical connector is provided. The electrical connector includes: an electric transmission body which is hollow and tubular; a mating end portion connected to one end of the electrical transmission body and serving as a connection terminal of one connector; and a connection end portion connected to the other end of the electrical transmission body and serving as a connection terminal of the other connector. The inner cavity of the electric transmission body serves as a cooling fluid circulation passage, and first and second fluid through holes are formed in peripheral walls of both ends of the electric transmission body, respectively, to allow the cooling fluid to flow into the electric transmission body via one of the first and second fluid through holes and to flow out of the electric transmission body via the other of the first and second fluid through holes.

In the foregoing respective exemplary embodiments according to the present utility model, the electrical transmitting body of the electrical connector is used for both transmitting the electric current and transmitting the cooling fluid, and thus, the temperature rise of the electrical connector can be reduced.

Furthermore, in the foregoing some exemplary embodiments according to the present utility model, both ends of the electrical connection member serve as the charging terminal of the cradle and the connection terminal of the connector, respectively, and thus, there is no need to provide a separate charging terminal for the cradle, nor a separate connection terminal for the battery pack connector. This reduces production costs, improves manufacturing efficiency, and also reduces resistance and temperature rise of the electrical connection.

Other objects and advantages of the present utility model will become apparent from the following description of the utility model with reference to the accompanying drawings, which provide a thorough understanding of the present utility model.

Drawings

FIG. 1 shows a schematic perspective view of an electrical connection assembly according to an exemplary embodiment of the present utility model;

FIG. 2 shows a cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the utility model;

fig. 3 shows a schematic perspective view of an electrical connection assembly according to an exemplary embodiment of the utility model, wherein the cradle housing and connector housing are not shown;

fig. 4 shows a vertical cross-section of an electrical connection assembly according to an exemplary embodiment of the utility model, wherein the cradle housing and connector housing are not shown;

FIG. 5 shows a horizontal cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present utility model, wherein the cradle housing and connector housing are not shown;

fig. 6 shows a schematic perspective view of an electrical connection assembly according to another exemplary embodiment of the utility model;

fig. 7 shows a schematic perspective view of an electrical connection assembly according to another exemplary embodiment of the utility model;

fig. 8 shows a horizontal cross-sectional view of the electrical connection assembly shown in fig. 7.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of embodiments of the present utility model with reference to the accompanying drawings is intended to illustrate the general inventive concept and should not be taken as limiting the utility model.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in the drawings in order to simplify the drawings.

According to one general technical concept of the present utility model, an electrical connector is provided. The electrical connector includes: the electric transmission body is hollow and tubular. The inner cavity of the electric transmission body serves as a cooling fluid circulation passage, and first and second fluid through holes are formed in peripheral walls of both ends of the electric transmission body, respectively, to allow the cooling fluid to flow into the electric transmission body via one of the first and second fluid through holes and to flow out of the electric transmission body via the other of the first and second fluid through holes.

According to another general technical concept of the present utility model, there is provided an electrical connection assembly. The electrical connection assembly includes: two electrical connectors; an insulated pipe communication member fitted over one end of the two electric transmission bodies for communicating the first fluid through holes of the two electric transmission bodies so that the inner cavities of the two electric transmission bodies communicate with each other; and the two insulating pipe joint pieces are sleeved on the other ends of the two electric transmission bodies respectively and are communicated with the second fluid through holes of the two electric transmission bodies respectively. One of the two coupling members is adapted to interface with a cooling fluid supply pipe and the other is adapted to interface with a cooling fluid return pipe such that cooling fluid can flow into and out of the electrical transmission body via the two coupling members.

According to another general technical concept of the present utility model, there is provided an electrical connection assembly. The electrical connection assembly includes: two electrical connectors; an insulated first pipe connection fitting over one end of two electrical transmission bodies, a first fluid through-hole for communicating one end of the two electrical transmission bodies and connecting the first fluid through-hole to a cooling fluid circuit; and an insulated second pipe connection fitting over the other ends of the two electrical transmission bodies, a second fluid through hole for communicating the other ends of the two electrical transmission bodies and connecting the second fluid through hole to a cooling fluid circuit.

According to another general technical concept of the present utility model, there is provided an electrical connector. The electrical connector includes: an electric transmission body which is hollow and tubular; a mating end portion connected to one end of the electrical transmission body and serving as a connection terminal of one connector; and a connection end portion connected to the other end of the electrical transmission body and serving as a connection terminal of the other connector. The inner cavity of the electric transmission body serves as a cooling fluid circulation passage, and first and second fluid through holes are formed in peripheral walls of both ends of the electric transmission body, respectively, to allow the cooling fluid to flow into the electric transmission body via one of the first and second fluid through holes and to flow out of the electric transmission body via the other of the first and second fluid through holes.

FIG. 1 shows a schematic perspective view of an electrical connection assembly according to an exemplary embodiment of the present utility model; FIG. 2 shows a cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the utility model; fig. 3 shows a schematic perspective view of an electrical connection assembly according to an exemplary embodiment of the present utility model, wherein the cradle housing 10 and the connector housing 20 are not shown; fig. 4 shows a vertical cross-section of an electrical connection assembly according to an exemplary embodiment of the present utility model, wherein the cradle housing 10 and the connector housing 20 are not shown; fig. 5 shows a horizontal cross-sectional view of an electrical connection assembly according to an exemplary embodiment of the present utility model, wherein the cradle housing 10 and the connector housing 20 are not shown.

As shown in fig. 1-5, in one exemplary embodiment of the present utility model, an electrical connector 30 is disclosed. The electrical connection 30 comprises an electrical transmission body 303 for transmitting electrical current. The electric transmission body 303 has a hollow tubular shape. The inner cavity of the electric transmission body 303 serves as a cooling fluid circulation passage, and first and second fluid through holes 30a and 30b are formed on peripheral walls of both ends of the electric transmission body 303, respectively, to allow cooling fluid to flow into the electric transmission body 303 via one of the first and second fluid through holes 30a and 30b and to flow out of the electric transmission body 303 via the other of the first and second fluid through holes 30a and 30 b.

As shown in fig. 1 to 5, in the illustrated embodiment, the electrical transmission body 303 of the electrical connector is used for both transmitting the electric current and transmitting the cooling fluid, and therefore, the temperature rise of the electrical connector 30 can be reduced.

As shown in fig. 1-5, in the illustrated embodiment, the electrical connector 30 further includes: a mating end 301 and a connecting end 302. The mating end 301 is connected to one end of the electrical transmission body 303 and serves as a charging terminal of the cradle 1. The connection end portion 302 is connected to the other end of the electrical transmission body 303, and serves as a connection terminal of the connector 2.

As shown in fig. 1-5, in the illustrated embodiment, the electrical connector 30 is a unitary piece. For example, the electrical connector 30 may be made by machining a single tubular member with both ends machined into the mating end 301 and the connecting end 302, respectively, as shown. The middle portion of the tubular member serves as the electrical transmission body 303 as shown.

In another exemplary embodiment of the present utility model, as shown in fig. 1-5, an electrical connection assembly 3 is also disclosed. The electrical connection assembly 3 comprises: two electrical connectors 30, an insulated pipe communication member 31, and two insulated pipe joint members 32. An insulated tube communication 31 is fitted over one end of the two electrical transmission bodies 303 for communicating the first fluid through holes 30a of the two electrical transmission bodies 303 so that the inner cavities of the two electrical transmission bodies 303 communicate with each other. Two insulated pipe joint members 32 are respectively fitted over the other ends of the two electric transmission bodies 303 and respectively communicate with the second fluid through holes 30b of the two electric transmission bodies 303. In the illustrated embodiment, one of the two coupling members 32 is adapted to interface with a cooling fluid supply tube and the other is adapted to interface with a cooling fluid return tube such that cooling fluid can flow into and out of the electrical transfer body 303 via the two coupling members 32.

As shown in fig. 1 to 5, in the illustrated embodiment, the pipe communication member 31 includes: two tubular portions 311 and one communicating portion 312. Two tubular portions 311 are respectively fitted over one ends of the two electrical transmission bodies 303. The communication portion 312 is connected between the two tubular portions 311 and has a communication hole 312a. The first fluid through holes 30a of the two electric transmission bodies 303 communicate with each other via the communication hole 312a of the communication portion 312.

As shown in fig. 1 to 5, in the illustrated embodiment, two first sealing rings 31a are fitted over one end of the electrical transmission body 303. Two first seal rings 31a are positioned inside the both ends of the tubular portion 311, respectively, and are pressed between the tubular portion 311 and the electrical transmission body 303 to achieve sealing therebetween.

As shown in fig. 1 to 5, in the illustrated embodiment, a first mounting portion 313 is formed as a protrusion on the outer peripheral surface of the tubular portion 311, a first screw hole is formed on the first mounting portion 313, and a first positioning hole 30c is formed on one end of the electric transmission body 303, which corresponds to the first screw hole. The electrical connection assembly 3 further includes a first screw 314, the first screw 314 being threadedly coupled to the first threaded bore and inserted into the first positioning bore 30c to prevent axial movement and circumferential rotation of the tube communication member 31 relative to the electrical transmission body 303.

As shown in fig. 1 to 5, in the illustrated embodiment, the pipe joint member 32 includes: a tubular body 321 and a pipe joint 322. A tubular body 321 is fitted over the other end of the electrical transmission body 303. The pipe joint 322 is connected to the tubular body 321 and has a connection hole 322a. The pipe joint 322 is adapted to interface with a cooling fluid supply pipe or a cooling fluid return pipe, and the connection hole 322a of the pipe joint 322 communicates with the second fluid through hole 30b of the electric transmission body 303.

As shown in fig. 1 to 5, in the illustrated embodiment, two second sealing rings 32a are fitted over the other end of the electrical transmission body 303. Two second seal rings 32a are positioned inside the two ends of the tubular body 321, respectively, and are pressed between the tubular body 321 and the electric transmission body 303 to achieve sealing therebetween.

As shown in fig. 1 to 5, in the illustrated embodiment, a convex second mounting portion 323 is formed on the outer peripheral surface of the tubular body 321, a second screw hole is formed on the second mounting portion 323, and a second positioning hole 30d corresponding to the second screw hole is formed on the other end of the electric transmission body 303. The electrical connection assembly 3 further includes a second screw 324, and the second screw 324 is screwed into the second screw hole and inserted into the second positioning hole 30d to prevent the pipe joint member 32 from moving axially and rotating circumferentially with respect to the electrical transmission body 303.

As shown in fig. 1 to 5, in the illustrated embodiment, a heat shrink tube 35 is heat shrunk on the electrical transmission body 303 of the shop connection piece 30, the heat shrink tube 35 constituting an outer insulation layer of the electrical transmission body 303. In the illustrated embodiment, the end portions of the heat shrink tube 35 are joined to the tubular portion 311 of the tube communication member 31 and the end portions of the tubular body 321 of the tube joint member 32.

As shown in fig. 1 to 5, in the illustrated embodiment, the mating end 301 of the electrical connector 30 is hollow and cylindrical and is connected to one end of the electrical transmission body 303. The electrical connection assembly further comprises a sealing plug 34, the sealing plug 34 being inserted into one end of the electrical transmission body 303 to seal one end of the electrical transmission body 303.

As shown in fig. 1 to 5, in the illustrated embodiment, the electrical connection assembly 3 further comprises a charging cradle 1, the charging cradle 1 comprising a charging cradle housing 10. The mating end 301 of the electrical connector 30 is inserted into the cradle housing 10 to constitute a charging terminal of the cradle 1 for mating connection with a mating terminal on the charging gun.

As shown in fig. 1 to 5, in the illustrated embodiment, the connection end 302 of the electrical connector 30 is flat and connected to the other end of the electrical transmission body 303, and the other end of the electrical transmission body 303 is sealed by the connection end 302.

As shown in fig. 1-5, in the illustrated embodiment, the electrical connection assembly 3 further includes a connector 2, the connector 2 including a connector housing 20. The connection end 302 of the electrical connector 30 is inserted into the connector housing 20 to constitute a connection terminal of the connector 2 for electrical connection with a bus bar (not shown) in a battery pack (not shown).

As shown in fig. 1 to 5, in the illustrated embodiment, two pipe joint members 32 are located outside the connector housing 20 for connection with a cooling fluid circuit (not shown) located outside the battery pack.

Fig. 6 shows a schematic perspective view of an electrical connection assembly 3 according to another exemplary embodiment of the utility model.

The electrical connection assembly 3 shown in fig. 6 differs from the electrical connection assembly 3 shown in fig. 1-5 mainly in the arrangement of the two pipe joint members 32. In the embodiment shown in fig. 6, two pipe joint members 32 are located inside the connector housing 20 for connection with a cooling fluid circuit (not shown) located inside the battery pack. In this way, it is more convenient and the external cooling fluid circuit can be dispensed with.

Fig. 7 shows a schematic perspective view of an electrical connection assembly according to another exemplary embodiment of the utility model; fig. 8 shows a horizontal cross-sectional view of the electrical connection assembly shown in fig. 7.

The electrical connection assembly shown in fig. 7-8 differs from the electrical connection assembly shown in fig. 1-6 primarily in the insulating communication structure of the electrical transmission body 303 that communicates the two electrical connectors 30, which differences are described primarily below.

As shown in fig. 7 and 8, in the illustrated embodiment, the electrical connection assembly basically includes: two electrical connectors 30, an insulated first tube connector 33 and an insulated second tube connector 33'. An insulated first pipe connection 33 is fitted over one end of the two electrical transmission bodies 303 for communicating the first fluid through holes 30a of one end of the two electrical transmission bodies 303 and connecting the first fluid through holes 30a to a cooling fluid circuit. An insulated second pipe connection 33' is fitted over the other ends of the two electrical transmission bodies 303 for communicating with the second fluid through holes 30b of the other ends of the two electrical transmission bodies 303 and connecting the second fluid through holes 30b to a cooling fluid circuit.

As shown in fig. 7 and 8, in the illustrated embodiment, the first pipe connection 33 includes: two first tubular portions 331 and a first communicating portion 332. The two first tubular portions 331 are respectively fitted over one ends of the two electrical conductors 303. The first communication portion 332 is connected between the two first tubular portions 331 and has a first communication hole 332a. The first pipe joint 333 is connected to the first communication part 332 and has a first connection hole 333a. The first connection hole 333a communicates with the first communication hole 332a, and the first communication hole 332a communicates with the first fluid through holes 30a of the two electric transmission bodies 303.

As shown in fig. 7 and 8, in the illustrated embodiment, a first boss 334 is formed on the outer peripheral surface of the first tubular portion 331, a first screw hole is formed on the first boss 334, and a first positioning insertion hole corresponding to the first screw hole is formed on one end of the electric transmission body 303. The electrical connection assembly 3 further includes a first screw 335, the first screw 335 being screwed into the first screw hole and inserted into the first positioning socket to prevent the first pipe connector 33 from moving axially and rotating circumferentially with respect to the electrical transmission body 303.

As shown in fig. 7 and 8, in the illustrated embodiment, the second pipe connection 33' includes: two second tubular portions 331 'and one second communicating portion 332'. The two second tubular portions 331' are respectively fitted over the other ends of the two electrical transmission bodies 303. The second communication portion 332' is connected between the two second tubular portions 331' and has a second communication hole 332a '. The second pipe joint 333' is connected to the second communication part 332' and has a second connection hole 333a '. The second connection hole 333a ' communicates with the second communication hole 332a ', and the second communication hole 332a ' communicates with the second fluid through holes 30b of the two electric transmission bodies 303.

As shown in fig. 7 and 8, in the illustrated embodiment, a second boss 334' is formed on the outer circumferential surface of the second tubular portion 331', a second screw hole is formed on the second boss 334', and a second positioning insertion hole corresponding to the second screw hole is formed on the other end of the electric transmission body 303. The electrical connection assembly 3 further includes a second screw 335', the second screw 335' being screwed into the second screw hole and inserted into the second positioning socket to prevent the second pipe connection 33' from moving axially and rotating circumferentially with respect to the electrical transmission body 303.

As shown in fig. 7 and 8, in the illustrated embodiment, the first pipe connection 33 and the second pipe connection 33' may be identical so that they can be used interchangeably, which is convenient to use and can reduce manufacturing costs.

In the embodiment shown in fig. 1 to 8, an electrical connection 30 is used for the electrical connection between the charging stand 1 and the connector 2. The present utility model is not limited to the illustrated embodiment, and for example, in another exemplary embodiment of the present utility model, an electrical connector 30 is also disclosed, the electrical connector 30 comprising: an electric transmission body 303 having a hollow tubular shape; a mating end 301 connected to one end of the electrical transmission body 303 and serving as a connection terminal for a connector (not shown); and a connection end portion 302 connected to the other end of the electrical transmission body 303 and serving as a connection terminal of the other connector 2. The inner cavity of the electric transmission body 303 serves as a cooling fluid circulation passage, and a first fluid through hole 30a and a second fluid through hole 30b are formed on peripheral walls of both ends of the electric transmission body 303, respectively, to allow the cooling fluid to flow into the electric transmission body 303 via one of the first fluid through hole 30a and the second fluid through hole 30b and to flow out of the electric transmission body 303 via the other of the first fluid through hole 30a and the second fluid through hole 30 b.

It will be appreciated by those skilled in the art that the above-described embodiments are exemplary and that modifications may be made to the embodiments described in various embodiments without structural or conceptual aspects and that these variations may be resorted to without departing from the scope of the utility model.

Although the present utility model has been described with reference to the accompanying drawings, the examples disclosed in the drawings are intended to illustrate preferred embodiments of the utility model and are not to be construed as limiting the utility model.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and that the word "a" or "an" does not exclude a plurality. In addition, any element numbers of the claims should not be construed as limiting the scope of the utility model.

Claims (21)

1. An electrical connector, comprising:

an electric transmission body (303) having a hollow tubular shape,

the inner cavity of the electric transmission body (303) serves as a cooling fluid circulation passage, and first fluid through holes (30 a) and second fluid through holes (30 b) are formed in peripheral walls of both ends of the electric transmission body (303) respectively to allow the cooling fluid to flow into the electric transmission body (303) via one of the first fluid through holes (30 a) and the second fluid through holes (30 b) and flow out of the electric transmission body (303) via the other of the first fluid through holes (30 a) and the second fluid through holes (30 b).

2. The electrical connector of claim 1, further comprising:

a mating end portion (301) connected to one end of the electric transmission body (303) and serving as a charging terminal of the charging stand (1); and

and a connection end portion (302) connected to the other end of the electrical transmission body (303) and serving as a connection terminal of the connector (2).

3. The electrical connector of claim 1, wherein: the electrical connection (30) is a single piece.

4. An electrical connection assembly, comprising:

two electrical connectors (30), the electrical connectors (30) being the electrical connectors of any one of claims 1-3;

an insulating tube communication member (31) fitted over one end of the two electric transmission bodies (303), a first fluid through hole (30 a) for communicating the two electric transmission bodies (303) so that inner cavities of the two electric transmission bodies (303) communicate with each other;

two insulated pipe joint members (32) respectively fitted over the other ends of the two electric transmission bodies (303) and respectively communicating with the second fluid through holes (30 b) of the two electric transmission bodies (303),

one of the two coupling members (32) is adapted to interface with a cooling fluid supply pipe and the other is adapted to interface with a cooling fluid return pipe such that cooling fluid can flow into and out of the electrical transmission body (303) via the two coupling members (32).

5. The electrical connection assembly of claim 4, wherein:

the pipe communication member (31) includes:

two tubular portions (311) respectively sleeved on one ends of the two electric transmission bodies (303); and

a communication part (312) connected between the two tubular parts (311) and having a communication hole (312 a),

the first fluid through holes (30 a) of the two electric transmission bodies (303) communicate with each other via a communication hole (312 a) of the communication portion (312).

6. The electrical connection assembly of claim 5, wherein:

two first sealing rings (31 a) are sleeved on one end of the electric transmission body (303), and the two first sealing rings (31 a) are respectively positioned on the inner sides of two ends of the tubular part (311) and are extruded between the tubular part (311) and the electric transmission body (303) so as to realize sealing between the two.

7. The electrical connection assembly of claim 5, wherein:

a first mounting portion (313) protruding from an outer peripheral surface of the tubular portion (311), a first screw hole being formed in the first mounting portion (313), and a first positioning hole (30 c) corresponding to the first screw hole being formed in one end of the electric transmission body (303);

the electrical connection assembly (3) further comprises a first screw (314), the first screw (314) being threaded into the first threaded hole and inserted into the first positioning hole (30 c) to prevent axial movement and circumferential rotation of the tube communication (31) relative to the electrical transmission body (303).

8. The electrical connection assembly of claim 4, wherein:

the pipe joint member (32) includes:

a tubular body (321) sleeved on the other end of the electric transmission body (303); and

a pipe joint (322) connected to the tubular body (321) and having a connection hole (322 a),

the coupling (322) is adapted to interface with the cooling fluid supply pipe or the cooling fluid return pipe, and the connection hole (322 a) of the coupling (322) communicates with the second fluid through hole (30 b) of the electrical transmission body (303).

9. The electrical connection assembly of claim 8, wherein:

two second sealing rings (32 a) are sleeved on the other end of the electric transmission body (303), and the two second sealing rings (32 a) are respectively positioned on the inner sides of two ends of the tubular body (321) and are extruded between the tubular body (321) and the electric transmission body (303) so as to realize sealing between the two.

10. The electrical connection assembly of claim 8, wherein:

a second mounting portion (323) protruding from an outer peripheral surface of the tubular body (321), a second screw hole being formed in the second mounting portion (323), and a second positioning hole (30 d) corresponding to the second screw hole being formed in the other end of the electric transmission body (303);

the electrical connection assembly (3) further comprises a second screw (324), the second screw (324) being threadedly coupled to the second threaded bore and inserted into the second locating hole (30 d) to prevent axial movement and circumferential rotation of the pipe joint member (32) relative to the electrical transmission body (303).

11. The electrical connection assembly of claim 4, wherein:

the opposite end (301) of the electric connector (30) is hollow and cylindrical and is connected with one end of the electric transmission body (303);

the electrical connection assembly further comprises a sealing plug (34), the sealing plug (34) being inserted into one end of the electrical transmission body (303) to seal one end of the electrical transmission body (303).

12. The electrical connection assembly of claim 11, further comprising:

a charging seat (1) comprising a charging seat shell (10),

the mating end (301) of the electrical connector (30) is inserted into the charging socket housing (10) to form a charging terminal of the charging socket (1) for mating connection with a mating terminal on a charging gun.

13. The electrical connection assembly of claim 11, wherein:

the connection end (302) of the electric connector (30) is flat and is connected with the other end of the electric transmission body (303), and the other end of the electric transmission body (303) is sealed by the connection end (302).

14. The electrical connection assembly of claim 13, further comprising:

a connector (2) includes a connector housing (20),

the connection end (302) of the electrical connector (30) is inserted into the connector housing (20) to constitute a connection terminal of the connector (2) for electrical connection with a bus bar in a battery pack.

15. The electrical connection assembly of claim 14, wherein:

the two pipe joint members (32) are located outside the connector housing (20) for connection with a cooling fluid circuit located outside the battery pack; or alternatively

The two pipe joint members (32) are located inside the connector housing (20) for connection with a cooling fluid circuit located inside the battery pack.

16. An electrical connection assembly, comprising:

two electrical connectors (30), the electrical connectors (30) being the electrical connectors of any one of claims 1-3;

an insulated first pipe connection (33) sleeved on one end of two electrical transmission bodies (303), a first fluid through hole (30 a) for communicating one end of the two electrical transmission bodies (303) and connecting the first fluid through hole (30 a) to a cooling fluid circuit; and

an insulated second pipe connection (33') is fitted over the other ends of the two electrical transmission bodies (303), for connecting a second fluid through hole (30 b) of the other ends of the two electrical transmission bodies (303) and for connecting the second fluid through hole (30 b) to a cooling fluid circuit.

17. The electrical connection assembly of claim 16, wherein:

the first pipe connection (33) comprises:

two first tubular portions (331) respectively sleeved on one ends of the two electric transmission bodies (303);

a first communication section (332) connected between the two first tubular sections (331) and having a first communication hole (332 a); and

a first pipe joint (333) connected to the first communication part (332) and having a first connection hole (333 a),

the first connection hole (333 a) communicates with the first communication hole (332 a), and the first communication hole (332 a) communicates with the first fluid through holes (30 a) of the two electrical transmission bodies (303).

18. The electrical connection assembly of claim 17, wherein:

a first boss (334) formed on an outer peripheral surface of the first tubular portion (331), a first screw hole formed on the first boss (334), and a first positioning insertion hole corresponding to the first screw hole formed on one end of the electric transmission body (303);

the electrical connection assembly (3) further comprises a first screw (335), the first screw (335) being screwed into the first screw hole and inserted into the first positioning socket to prevent axial movement and circumferential rotation of the first pipe connection (33) relative to the electrical transmission body (303).

19. The electrical connection assembly of claim 16, wherein:

the second pipe connection (33') comprises:

two second tubular portions (331') respectively fitted over the other ends of the two electrical transmission bodies (303);

a second communication portion (332 ') connected between the two second tubular portions (331 ') and having a second communication hole (332 a '); and

a second pipe joint (333 ') connected to the second communication part (332 ') and having a second connection hole (333 a '),

the second connection hole (333 a ') communicates with the second communication hole (332 a '), and the second communication hole (332 a ') communicates with the second fluid through holes (30 b) of the two electric transmission bodies (303).

20. The electrical connection assembly of claim 19, wherein:

a second protruding portion (334 ') formed on an outer peripheral surface of the second tubular portion (331 '), a second screw hole formed on the second protruding portion (334 '), and a second positioning insertion hole corresponding to the second screw hole formed on the other end of the electric transmission body (303);

the electrical connection assembly (3) further comprises a second screw (335 '), the second screw (335 ') being screwed into the second screw hole and inserted into the second positioning socket to prevent axial movement and circumferential rotation of the second pipe connection (33 ') relative to the electrical transmission body (303).

21. An electrical connector, comprising:

an electric transmission body (303) having a hollow tubular shape;

a mating end portion (301) connected to one end of the electrical transmission body (303) and serving as a connection terminal of one connector; and

a connection end portion (302) connected to the other end of the electrical transmission body (303) and serving as a connection terminal of the other connector (2),

the inner cavity of the electric transmission body (303) serves as a cooling fluid circulation passage, and first fluid through holes (30 a) and second fluid through holes (30 b) are formed in peripheral walls of both ends of the electric transmission body (303) respectively to allow the cooling fluid to flow into the electric transmission body (303) via one of the first fluid through holes (30 a) and the second fluid through holes (30 b) and flow out of the electric transmission body (303) via the other of the first fluid through holes (30 a) and the second fluid through holes (30 b).