CN219575876U - Parallel connector and energy storage system - Google Patents

Abstract

The utility model provides a parallel connector and an energy storage system, and belongs to the technical field of connectors. The parallel connector comprises a main body and a connecting assembly, wherein a containing cavity and a through hole are formed in the main body, the connecting assembly is provided with a first connecting part, a second connecting part and a third connecting part, the connecting assembly is contained in the containing cavity, the first connecting part and the second connecting part are respectively and correspondingly arranged with the through hole, and the power transmission line comprises a first power transmission line with one end contained in the first connecting part and a second power transmission line with one end contained in the second connecting part; the device includes a conductive member extending partially into the third connection portion to electrically connect the device and the connection assembly. The parallel connector enables the equipment to be connected with the two power transmission lines through the connecting component, on one hand, a plurality of pieces of equipment are connected in parallel through the parallel connector, the practicability of the parallel connector is improved, on the other hand, the number of the connectors is reduced, and the cost of the energy storage system is reduced.

Description

Parallel connector and energy storage system

Technical Field

The utility model relates to a parallel connector and an energy storage system, and belongs to the technical field of connectors.

Background

At present, with the rise of new energy, people pay more attention to the storage and transmission of electric energy, and an energy storage system is used for realizing the serial connection or the parallel connection among a plurality of battery packs by installing connectors on the battery packs so as to store or release the electric energy.

In the existing energy storage system, the connector can only be connected with one cable, if a plurality of battery packs are required to be connected, a plurality of connectors are required to be arranged on the battery packs, so that the number of the connectors is increased, and the cost of the energy storage system is high; on the other hand, a plurality of connectors are provided on the battery pack, so that the wiring of the energy storage system is disordered.

In view of the foregoing, it is necessary to provide a parallel connector and an energy storage system to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a parallel connector and an energy storage system, which are used for solving the problems that the connector can only be connected with one cable in the prior art, the practicability is poor and the cost of the energy storage system is high.

To achieve the above object, the present utility model provides a parallel connector, which cooperates with a power line to achieve parallel connection of at least two devices, the parallel connector comprising:

the main body is internally provided with a containing cavity and a perforation communicated with the containing cavity, and the transmission line passes through the perforation and is partially contained in the containing cavity;

the connecting assembly is provided with a first connecting part, a second connecting part and a third connecting part, the connecting assembly is accommodated in the accommodating cavity, the first connecting part and the second connecting part are respectively arranged corresponding to the through holes, the power transmission line comprises a first power transmission line and a second power transmission line, one end of the first power transmission line is accommodated in the first connecting part, and one end of the second power transmission line is accommodated in the second connecting part, so that the electric connection between the connecting assembly and the power transmission line is realized;

the device comprises a conductive piece, and part of the conductive piece extends into the third connecting part to electrically connect the connecting assembly and the device.

As a further improvement of the utility model, the first connecting part and the second connecting part are respectively formed by inwards sinking from the two ends of the connecting assembly, the sinking directions of the first connecting part and the second connecting part are positioned on the same straight line, and the opening direction of the third connecting part is perpendicular to the opening direction of the first connecting part.

As a further improvement of the utility model, the accommodating cavity is internally provided with a buckling part protruding from the inner side wall of the main body towards the accommodating cavity, and the connecting component is provided with a clamping part matched with the buckling part so as to limit and accommodate the connecting component in the accommodating cavity.

As a further improvement of the utility model, two connecting components are arranged for respectively transmitting positive current and negative current, two accommodating cavities are correspondingly arranged, and the two accommodating cavities are respectively arranged at two sides of the main body for respectively accommodating the two connecting components.

As a further improvement of the utility model, the main body comprises four external connection ends arranged at the top angle of the main body, the through holes penetrate through the external connection ends to be communicated with the containing cavity, and the first power transmission line and the second power transmission line respectively penetrate through the corresponding through holes to be electrically connected with the connecting assembly.

As a further improvement of the utility model, the external connection terminal is a locking external connection terminal, and the parallel connector further comprises a locking component matched with the locking external connection terminal, so that the power transmission line is in sealed locking connection with the main body.

As a further improvement of the present utility model, the connection assembly further includes a locking member, a first locking hole and a second locking hole, the first locking hole being in communication with the first connection portion so that the locking member passes through the first locking hole and abuts against the first power transmission line; the second locking hole is communicated with the second connecting part, so that the locking piece penetrates through the second locking hole and is abutted to the second power transmission line, and the connecting assembly is fixedly connected with the first power transmission line and the second power transmission line.

As a further improvement of the utility model, the opening direction of the first locking hole and the second locking hole is parallel to the opening direction of the third connecting part, and the connecting assembly further comprises two observation holes which are respectively positioned between the first locking hole and the third connecting part and between the second locking hole and the third connecting part.

As a further improvement of the utility model, the external connection end is an opposite-plug type male connector or an opposite-plug type female connector, and the first power transmission line and the second power transmission line are respectively fixed in the opposite-plug type male connector and the opposite-plug type female connector.

In order to achieve the above object, the present utility model further provides an energy storage system, which includes a plurality of battery packs and a plurality of parallel connectors, wherein the parallel connectors are installed on the corresponding battery packs to connect the plurality of battery packs in parallel.

The beneficial effects of the utility model are as follows: according to the parallel connector, the first connecting part, the second connecting part and the third connecting part are arranged on the connecting component, so that the equipment can be connected with two power transmission lines through the connecting component, on one hand, the parallel connection of a plurality of pieces of equipment through the parallel connector is realized, the practicability of the parallel connector is improved, on the other hand, the number of the connectors is reduced, the cost of an energy storage system is reduced, and meanwhile, the wiring mode in the energy storage system is simplified.

Drawings

Fig. 1 is a perspective view of a parallel connector according to a first preferred embodiment of the present utility model.

Fig. 2 is another angular perspective view of the parallel connector of fig. 1.

Fig. 3 is an exploded view of the parallel connector of fig. 2.

Fig. 4 is a perspective view of the body of fig. 3.

Fig. 5 is a schematic perspective view of the connection assembly of fig. 3.

Fig. 6 is a schematic diagram of the application of the parallel connector of fig. 1 in an energy storage system.

Fig. 7 is a perspective view of a parallel connector according to a second preferred embodiment of the present utility model.

Fig. 8 is an exploded view of the parallel connector of fig. 7.

Fig. 9 is a schematic perspective view of the connection assembly of fig. 8.

Fig. 10 is a schematic diagram of the application of the parallel connector of fig. 7 in an energy storage system.

Reference numerals illustrate: the energy storage system 100, the parallel connector 200/200', the power transmission line 300, the battery pack 400, the connection assembly 1, the first connection part 11, the second connection part 12, the third connection part 13, the notch 14, the clamping part 15, the observation hole 16, the first locking hole 17, the second locking hole 18, the locking piece 19/19', the main body 2, the accommodating cavity 21, the buckling part 211, the through hole 22, the external connection end 23, the plug-in external connection end 231, the plug-in male head 232, the plug-in female head 233, the locking external connection end 234, the locking end 235, the sealing strip 24, the fixing piece 25, the fixing hole 26, the locking assembly 3, the extrusion piece 31, the first through hole 311, the sealing piece 32, the second through hole 321, the first power transmission line 4 and the second power transmission line 5.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, 6, 7 and 10, an energy storage system 100 for storing or discharging electrical energy is disclosed. The energy storage system 100 includes a plurality of battery packs 400, a plurality of parallel connectors 200, and a plurality of power lines 300, the plurality of parallel connectors 200 are connected through the power lines 300, the parallel connectors 200 are mounted on the battery packs 400 and electrically connected with the battery packs 400, such that the parallel connectors 200 cooperate with the power lines 300 to connect the plurality of battery packs 400 in parallel.

In this embodiment, the energy storage system 100 is taken as an example to describe the application of the parallel connector 200, so the device is the battery pack 400, however, in other embodiments, the parallel connector 200 in this technical solution may be used in other systems, and the parallel connection of several devices in other systems is realized by the cooperation of the parallel connector 200, the power line 300 and the device, which is not limited herein.

Referring to fig. 1 to 5, in a first embodiment of the present utility model, a parallel connector 200 includes a main body 2 and a connection assembly 1, wherein a housing cavity 21 and a through hole 22 communicating with the housing cavity 21 are provided in the main body 2, a power line 300 passes through the through hole 22 and is partially housed in the housing cavity 21, the connection assembly 1 is provided with a first connection portion 11, a second connection portion 12 and a third connection portion 13, such that the first connection portion 11 and the second connection portion 12 are disposed corresponding to the through hole 22, the power line 300 includes a first power line 4 and a second power line 5, one end of the first power line 4 is housed in the first connection portion 11, one end of the second power line 5 is housed in the second connection portion 12 to electrically connect the connection assembly 1 and the power line 300, and the battery pack 400 includes a conductive member, and a portion of the conductive member extends into the third connection portion 13 to electrically connect the connection assembly 1 and the battery pack 400.

Preferably, the first connection portion 11, the second connection portion 12 and the third connection portion 13 are all connection holes, so that the first power line 4 can be accommodated in the first connection portion 11, the second power line 5 can be accommodated in the second connection portion 12, and one end of the conductive member can be accommodated in the third connection portion 13, however, in other embodiments, the first connection portion 11, the second connection portion 12 and the third connection portion 13 may be connected to the first power line 4, the second power line 5 and the conductive member by other connection methods, such as welding, riveting, etc., which are not limited herein.

The two connecting components 1 are arranged to respectively transmit the positive current and the negative current, the two accommodating cavities 21 are correspondingly arranged to respectively accommodate the two connecting components 1, and the two accommodating cavities 21 are respectively arranged on two sides of the main body 2 to separate the positive current and the negative current and avoid the short circuit of the current in the main body 2. Specifically, one side of the main body 2 is recessed inward to form a semi-cylindrical accommodating cavity 21, the shape of the connecting component 1 is substantially cylindrical, and the size of the connecting component 1 is smaller than that of the accommodating cavity 21, so that the connecting component 1 can be completely accommodated in the accommodating cavity 21.

The accommodating cavity 21 is internally provided with a buckling part 211 protruding from the inner side wall of the main body 2 towards the accommodating cavity 21, the connecting component 1 is provided with a clamping part 15 matched with the buckling part 211 so as to limit the connecting component 1 to be accommodated in the accommodating cavity 21, specifically, the buckling parts 211 are arranged in the accommodating cavity 21 in four and are uniformly distributed on two opposite side walls of the accommodating cavity 21, the clamping part 15 is formed by inwards recessing from the outer side wall of the connecting component 1, and the clamping part 15 is arranged on two side walls of the connecting component 1 and is correspondingly arranged with the buckling part 211, so that when the connecting component 1 is accommodated in the accommodating cavity 21, the clamping part 15 is matched with the buckling part 211 so as to limit the connecting component 1 in the accommodating cavity 21.

In this embodiment, the connection assembly 1 and the main body 2 are connected by a buckle to limit the connection assembly 1 to be accommodated in the accommodating cavity 21, however, in other embodiments, the connection assembly 1 may be fixed on the main body 2 by a screw or may be fixed in the accommodating cavity 21 by a connecting adhesive, so long as the limit connection between the connection assembly 1 and the main body 2 can be achieved, and the connection mode of the connection assembly 1 and the main body 2 is not limited.

Referring to fig. 5, the first connecting portion 11 and the second connecting portion 12 are respectively formed by recessing inward from two ends of the connecting assembly 1, and the recessing directions of the first connecting portion 11 and the second connecting portion 12 are in the same straight line, and the opening direction of the third connecting portion 13 is perpendicular to the opening direction of the first connecting portion 11. Specifically, the first connecting portion 11, the second connecting portion 12 and the third connecting portion 13 are in a T-shaped arrangement, the first connecting portion 11 and the second connecting portion 12 are all in a circular arrangement so as to process and accommodate the power transmission line 300, and the third connecting portion 13 is arranged in the middle of the connecting assembly 1 so that the connecting assembly 1 is electrically connected with the battery pack 400.

Specifically, still be equipped with breach 14 on coupling assembling 1, the bottom of breach 14 is located to third connecting portion 13, the conductive piece stretches into breach 14 and stretches into third connecting portion 13 to realize the connection of conductive piece and coupling assembling 1, through setting up breach 14 on coupling assembling 1, the location of conductive piece when the installation has been realized on the one hand, make the location locking of conductive piece and third connecting portion 13 of realization that operating personnel can be convenient, on the other hand, through setting up breach 14 on coupling assembling 1, the use of coupling assembling 1 material has been reduced, the manufacturing cost of coupling assembling 1 has been reduced.

In this embodiment, the third connecting portion 13 is internally provided with threads, the conductive member includes a conductive ring and a locking member 19 detachably connected with the conductive ring, the locking member 19 is specifically a screw, the third connecting portion 13 is internally provided with threads, when in connection, the conductive ring is sleeved on the locking member 19 and located between the locking member 19 and the connecting assembly 1, the locking member 19 is accommodated in the third connecting portion 13 and is locked and connected through the threads, and connection stability between the conductive member and the connecting assembly 1 is improved. Of course, in other embodiments, the conductive element and the connection assembly 1 may be connected by other means, such as: the interference fit connection is achieved by restricting the conductive member in the third connecting portion 13 by other means, as long as a stable connection between the conductive member and the connection assembly 1 can be achieved, without limitation.

Referring to fig. 3 and fig. 4, in the present embodiment, four through holes 22 are provided to correspond to the first connection portion 11 and the second connection portion 12, specifically, four through holes 22 are provided at four top corners of the body, such that two through holes 22 are communicated with one housing cavity 21, and the two through holes 22 are provided at two opposite sides of the housing cavity 21, respectively, the connection assembly 1 is housed in the housing cavity 21, such that the first connection portion 11 and the second connection portion 12 correspond to the through holes 22, such that the first power line 4 passes through the through holes 22 and is housed in the first connection portion 11, the second power line 5 passes through the through holes 22 and is housed in the second connection portion 12, and the first power line 4 and the second power line 5 are disposed opposite to each other to realize convenient connection of the power line 300 and the parallel connector 200, however, in other embodiments, only two through holes 22 may be provided, i.e. one housing cavity 21 is communicated with one through hole 22, and the first power line 4 and the second power line 5 enter the housing cavity 21 from the through holes 22 and are respectively connected to the first power line 11 and the second power line 12 and the parallel connector 200, so that the connection is not limited.

The main body 2 includes four external connection terminals 23 disposed at the top angle of the main body 2, and the through holes 22 penetrate through the external connection terminals 23 to communicate with the accommodating cavity 21, and the first power line 4 and the second power line 5 respectively penetrate through the corresponding through holes 22 to be electrically connected with the connecting component 1. The external connection end 23 extends outwards from the top corner of the main body 2, and the setting position of the external connection end 23 corresponds to the setting position of the four perforation holes 22, so that the perforation holes 22 can be accommodated in the external connection end.

Specifically, the external connection end 23 is a locking external connection end 234, the parallel connector 200 includes a locking assembly 3 matched with the locking external connection end 234, so that the power transmission line 300 is in sealed locking connection with the main body 2, specifically, the locking external connection end 234 is provided with four external connection ends with the same structure, and the four through holes 22 respectively penetrate through the four locking external connection ends 234 to be communicated with the accommodating cavity 21.

The locking end 235 is located at the end of the locking external connection end 234 away from the main body 2, and the locking end 235 can move towards the central axis direction of the through hole 22 under the action of external force, so as to reduce the size of the through hole 22 and limit the movement of the power transmission line 300. The locking assembly 3 comprises an extrusion piece 31 and a sealing piece 32, wherein the shape and the size of the sealing piece 32 are matched with those of the through hole 22, a first through hole 311 for the transmission line 300 to pass through is formed in the sealing piece 32, and the sealing piece 32 is sleeved on the outer side of the transmission line 300 and is accommodated in the through hole 22 so as to realize the sealing of the external connection end 23 and the transmission line 300; the extrusion 31 is provided with a second through hole 321 through which the power line 300 passes, and the extrusion 31 is sized to match the locking end 235 so that the extrusion 31 can be sleeved on and moved along the end to reduce the size of the perforation 22. Preferably, the outer side wall of the locking end 235 is provided with an external thread, and the pressing member 31 is provided with an internal thread, so that the pressing member 31 is in threaded connection with the locking end 235, the locking end 235 is pressed by the pressing member 31, so that the size of the through hole 22 is reduced and the locking end 235 presses the sealing member 32, thereby realizing the locking seal between the power transmission line 300 and the main body 2.

The connection assembly 1 further comprises a locking member 19', a first locking hole 17 and a second locking hole 18, the first locking hole 17 being in communication with the first connection portion 11, such that the locking member 19' passes through the first locking hole 17 and abuts against the first power transmission line 4; the second locking hole 18 communicates with the second connection portion 12, so that the locking member 19' passes through the second locking hole 18 and abuts against the second power line 5, and the connection assembly 1 is fixedly connected with the first power line 4 and the second power line 5. Specifically, the first locking hole 17 and the second locking hole 18 are both internally provided with threads, and the outer wall of the locking piece 19 'is also provided with threads, so that the locking piece 19' is in threaded connection with the connecting assembly 1, and the connection stability of the connecting assembly 1 with the first power transmission line 4 and the second power transmission line 5 is enhanced.

The opening directions of the first locking hole 17 and the second locking hole 18 are parallel to the opening direction of the third connecting portion 13, the connecting assembly 1 further comprises an observation hole 16, the observation hole 16 is provided with two parts, the two parts are respectively located between the first locking hole 17 and the third connecting portion 13 and between the second locking hole 18 and the third connecting portion 13, specifically, the opening directions of the first locking hole 17 and the second locking hole 18 on the connecting assembly 1 are the same as the opening directions of the third connecting portion 13, so that the locking piece 19' is connected with the connecting assembly 1, the observation hole 16 is used for checking the positions of the first power transmission line 4 and the second power transmission line 5 in the first connecting portion 11 and the second connecting portion 12, and an operator can conveniently assemble the power transmission line 300 and the connecting assembly 1, so that the connection stability of the power transmission line 300 and the connecting assembly 1 is improved.

In addition, the battery pack 400 is provided with a connection port (not shown), the conductive member is accommodated in the connection port and electrically connected with the battery in the battery pack 400, and the parallel connector 200 is covered at the connection port, so that the conductive member can be accommodated in the third connection portion 13 and electrically connected with the connection assembly 1, so as to input electric energy into the battery pack 400 or output electric energy in the battery pack 400 through the parallel connector 200.

Specifically, the accommodating cavity 21 is formed by recessing inwards from one side of the main body 2 and covered by the battery pack 400, so that the accommodating cavity 21 is arranged between the battery pack 400 and the main body 2, and the accommodating cavity 21 is covered by the side wall of the battery pack 400, so that the connection assembly 1 is further covered and sealed, and dust is prevented from entering the accommodating cavity 21.

The energy storage system 100 includes a sealing bar 24, and the sealing bar 24 is provided between the body 2 and the battery pack 400 to hermetically connect the parallel connector 200 and the battery pack 400. Specifically, the shape of the sealing strip 24 is similar to that of the main body 2, and the sealing strip 24 is arranged at the middle position of the frame of the main body 2, when the main body 2 abuts against the battery pack 400 and presses the sealing strip 24, the sealing between the main body 2 and the battery pack 400 is waterproof.

The main body 2 further comprises fixing holes 26 and fixing pieces 25, four fixing holes 26 are formed in the main body 2 and evenly distributed on the main body 2, and the fixing pieces 25 are matched with the fixing holes 26 to penetrate through the fixing holes 26 and fix the battery pack 400 so as to fix the parallel connector 200 on the battery pack 400. Of course, in other embodiments, the parallel connector 200 may be connected to the battery pack 400 in other ways, without limitation.

Referring to fig. 7 to 9, in the second embodiment of the present utility model, the mating relationship between the parallel connector 200 'and the battery pack 400, the partial structure of the parallel connector 200', and the mating relationship between the partial structures are substantially the same as those of the parallel connector 200 in the first embodiment, except that: the connection relationship between the power line 300 and the connection assembly 1 and the specific structure of the external connection terminal 23 will be described in detail in the following description.

In this embodiment, the connection assembly 1 is connected with the power line 300 in an extrusion mode, wherein the first power line 4 is accommodated in the first connection portion 11, and an outer wall surface of the first power line 4 is closely attached to an inner wall surface of the first connection portion 11; the second power line 5 is accommodated in the second connection portion 12, and an outer wall surface of the second power line 5 is closely attached to an inner wall surface of the second connection portion 12. Specifically, in the installation, operating personnel is through applying external force to first power transmission line 4 for first power transmission line 4 extrudees in first connecting portion 11 under the effect of external force, makes first power transmission line 4 closely laminate with coupling assembling 1, has strengthened the connection stability of power transmission line 300 and coupling assembling 1, and similarly, second power transmission line 5 also realizes closely laminating with coupling assembling 1, accomplishes the stable connection of power transmission line 300 and coupling assembling 1. That is, in the present embodiment, the first locking hole 17, the second locking hole 18 and the locking member 19' are not provided on the connection assembly 1, so that the assembling steps of the power transmission line 300 and the connection assembly 1 are reduced, and the installation efficiency is improved.

The external connection terminal 23 is an opposite-plug type external connection terminal 231, the opposite-plug type external connection terminal 231 comprises an opposite-plug type male head 232 and an opposite-plug type female head 233, the first power transmission line 4 and the second power transmission line 5 are respectively fixed in the corresponding opposite-plug type male head 232 and the opposite-plug type female head 233, in this embodiment, two of the four external connection terminals 23 are opposite-plug type male heads 232, the other two are opposite-plug type female heads 233, specifically, the two opposite-plug type male heads 232 are oppositely arranged and transmit negative current, the two opposite-plug type female heads 233 are oppositely arranged and transmit positive current, so that the two opposite-plug type female heads 233 are oppositely arranged and transmit positive current, and the two opposite-plug type male heads can be in snap connection with the external connection terminal 23 through installing connectors corresponding to the external connection terminals 23 on the power transmission line 300, so that the connection stability of the power transmission line 300 and the parallel connector 200' is improved, and the main body 2 and the power transmission line 300 are quickly and conveniently connected. Of course, in other embodiments, two male connectors 232 may be disposed at diagonally opposite ends of the main body 2, i.e., one male connector 232 is disposed opposite one female connector 233 to transmit positive or negative current; in addition, the external connection ends 23 on the main body 2 may be all inserted male connectors 232, and the corresponding power transmission lines 300 may be all inserted female connectors 233; alternatively, the external connection terminals 23 on the main body 2 may be all the plug-in female connectors 233, and the corresponding power transmission lines 300 may be all the plug-in male connectors 232; the structure of the external terminal 23 is not limited herein, as long as the purpose of quick and convenient connection of the power line 300 to the main body 2 can be achieved.

Referring to fig. 6 and 10 specifically, when the energy storage system 100 is used, a parallel connector 200/200 'is disposed on a battery pack 400, two connection assemblies 1 in the parallel connector 200/200' are respectively connected with positive electrodes and negative electrodes in the battery pack 400, so that two positive electrodes and two negative electrodes exist in four external terminals 23 of the parallel connector 200/200', and one positive and one negative external terminals 23 disposed on the same side are correspondingly connected with the parallel connector 200/200' on the adjacent battery pack 400, so as to realize parallel connection of the adjacent two battery packs 400, and similarly, parallel connection of a plurality of battery packs 400 can be realized. When the last battery pack 400 is connected, a waterproof plug is arranged at the tail end of the parallel connector 200/200' to seal, so that water vapor and dust are prevented from entering the accommodating cavity 21.

In summary, the parallel connector 200/200' of the present utility model, by providing the first connection portion 11, the second connection portion 12 and the third connection portion 13 on the connection assembly 1, enables the devices to be connected with the two power lines 300 through the connection assembly 1, on one hand, realizes that a plurality of devices are connected in parallel through the parallel connector 200/200', improves the practicality of the parallel connector 200/200', on the other hand, reduces the number of connectors used on the surface of the battery pack 400, reduces the cost of the energy storage system 100, and meanwhile simplifies the wiring mode in the energy storage system 100; by setting the external connection terminal 23 as the opposite-plug external connection terminal 231 and the locking external connection terminal 234, the compatibility of the parallel connector 200/200' is improved to adapt to the type of the connector mainstream in the market at present; by providing the through holes 22 corresponding to the first connection portion 11 and the second connection portion 12, respectively, on the main body 2, the connection manner of the parallel connector 200/200' and the power transmission line 300 is simple and convenient, and the assembly efficiency is improved.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. A parallel connector for cooperation with a power line for effecting a parallel connection of at least two devices, the parallel connector comprising:

the main body is internally provided with a containing cavity and a perforation communicated with the containing cavity, and the transmission line passes through the perforation and is partially contained in the containing cavity;

the connecting assembly is provided with a first connecting part, a second connecting part and a third connecting part, the connecting assembly is accommodated in the accommodating cavity, the first connecting part and the second connecting part are respectively arranged corresponding to the through holes, the power transmission line comprises a first power transmission line and a second power transmission line, one end of the first power transmission line is accommodated in the first connecting part, and one end of the second power transmission line is accommodated in the second connecting part, so that the electric connection between the connecting assembly and the power transmission line is realized;

the device comprises a conductive piece, and part of the conductive piece extends into the third connecting part to electrically connect the connecting assembly and the device.

2. The parallel connector of claim 1, wherein: the first connecting portion and the second connecting portion are respectively formed by inwards sinking from two ends of the connecting assembly, the sinking directions of the first connecting portion and the second connecting portion are positioned on the same straight line, and the opening direction of the third connecting portion is perpendicular to the opening direction of the first connecting portion.

3. The parallel connector of claim 1, wherein: the accommodating cavity is internally provided with a buckling part protruding from the inner side wall of the main body towards the accommodating cavity, and the connecting component is provided with a clamping part matched with the buckling part so as to limit and accommodate the connecting component in the accommodating cavity.

4. The parallel connector of claim 1, wherein: the connecting components are arranged in two to respectively transmit positive current and negative current, the accommodating cavities are correspondingly arranged in two, and the two accommodating cavities are respectively arranged on two sides of the main body to respectively accommodate the two connecting components.

5. The parallel connector of claim 1, wherein: the main body comprises four external connection ends arranged at the top angle of the main body, the through holes penetrate through the external connection ends to be communicated with the accommodating cavity, and the first power transmission line and the second power transmission line respectively penetrate through the corresponding through holes to be electrically connected with the connecting assembly.

6. The parallel connector of claim 5, wherein: the external connection end is a locking type external connection end, and the parallel connector further comprises a locking component matched with the locking type external connection end, so that the transmission line is in sealing locking connection with the main body.

7. The parallel connector of claim 6, wherein: the connecting assembly further comprises a locking piece, a first locking hole and a second locking hole, wherein the first locking hole is communicated with the first connecting part, so that the locking piece passes through the first locking hole and is abutted with the first power transmission line; the second locking hole is communicated with the second connecting part, so that the locking piece penetrates through the second locking hole and is abutted to the second power transmission line, and the connecting assembly is fixedly connected with the first power transmission line and the second power transmission line.

8. The parallel connector of claim 7, wherein: the first locking hole and the second locking hole are arranged in parallel with the third connecting portion, the connecting assembly further comprises observation holes, two observation holes are arranged and are respectively arranged between the first locking hole and the third connecting portion and between the second locking hole and the third connecting portion.

9. The parallel connector of claim 5, wherein: the external connection end is a plug-in type male connector or a plug-in type female connector, and the first power transmission line and the second power transmission line are respectively fixed in the corresponding plug-in type male connector or plug-in type female connector.

10. An energy storage system, characterized by: comprising a number of battery packs and a number of parallel connectors according to any of claims 1-9, which are mounted on corresponding battery packs for connecting the number of battery packs in parallel.