CN216624627U

CN216624627U - Quick plug electrical connector

Info

Publication number: CN216624627U
Application number: CN202123000798.4U
Authority: CN
Inventors: 郑清涛; 周青; 马武兴; 赵光敏; 陈宇瑾; 谢小林; 郭增平; 叶妮; 郭光森; 易静; 刘维
Original assignee: Zhuhai China Construction Xingye Green Building Design Institute Co ltd; Zhuhai Xingye Energy Saving Science And Technology Co ltd; Shuifa Xingye Energy Zhuhai Co ltd; Zhuhai Singyes Green Building Technology Co Ltd; Shuifa Energy Group Co Ltd
Current assignee: Zhuhai China Construction Xingye Green Building Design Institute Co ltd; Zhuhai Xingye Energy Saving Science And Technology Co ltd; Shuifa Xingye Energy Zhuhai Co ltd; Zhuhai Singyes Green Building Technology Co Ltd; Shuifa Energy Group Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-05-27
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to an energy storage battery technical field to a quick plug electrical connector is provided, including public plug and female socket, public plug with female socket forms by the electrically conductive material preparation, the removable grafting of one end of public plug assemble in the one end of female socket, the removable assembly of the other end of public plug is on the electrically conductive support of battery pack or power supply battery pack installation, the removable assembly of the other end of female socket is on the electrically conductive support of power supply battery pack installation or battery pack. The application provides a quick plug electrical connector can supply battery pack to connect fast, and the installation operation is simpler, and is difficult to cause the fire incident, and is safer.

Description

Quick plug electrical connector

Technical Field

The application belongs to the technical field of energy storage batteries, and more specifically relates to a quick plug electrical connector.

Background

The energy occupation ratio of new energy sources such as wind power, photovoltaic and the like is gradually increased in China, and the energy storage technology is assisted for the vigorous popularization of the new energy sources such as the wind power, the photovoltaic and the like. The energy storage is regarded as a necessary technical means for improving the flexibility, economy and safety of the wind and light new energy power system, and is also an important component and a key support technology of a future smart grid and renewable energy for improving the energy supply ratio and 'internet +' smart energy.

The battery pack of present container energy storage power station is a good box of encapsulation, connects through cable or copper bar between the battery pack, installs electric connector utmost point ear and external cable junction on the box.

With respect to the related art among the above, the inventors consider that the following drawbacks exist:

the cable bending device has the advantages that the operation is complex, the cable is difficult to bend, if the connecting wires are not spliced according to strict regulations, the connection at the joint cannot be firm and is easy to loosen, and if the wire cores of the wires are not well twisted, part of the wire cores are tilted outwards, and once the wires are electrified after being collided with each other, a short circuit is formed, so that electric sparks are easy to generate, and even serious fire accidents can be caused.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a quick plug electrical connector to solve battery pack and adopt the installation complex operation that cable junction exists, the cable is bent the difficulty, the connection of joint department is not hard up easily, cause the technical problem of fire incident easily.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a quick plug electrical connector, includes male plug and female socket, male plug with female socket forms by the conducting material preparation, the removable grafting assembly of one end of male plug in the one end of female socket, the removable assembly of the other end of male plug is on the battery pack or the electrically conductive support of battery pack installation, the removable assembly of the other end of female socket is on the electrically conductive support of battery pack installation or on the battery pack.

Optionally, the male plug is connected with a battery pack, and the female socket is connected with a conductive bracket for mounting the battery pack.

Optionally, the male plug and the battery pack are assembled in a threaded manner, and the female socket and the conductive bracket for mounting the battery pack are assembled through bolts.

Optionally, the male plug comprises a plug section and a threaded section, the plug section is detachably plugged in the female socket, and the threaded section is assembled on the battery pack in a threaded manner.

Optionally, a blocking and screwing portion is further arranged between the insertion section and the thread section, and the minimum diameter of the blocking and screwing portion is larger than the maximum diameter of the insertion section.

Optionally, the end of the insertion section away from the threaded section is provided with a conical bevel.

Optionally, the female socket comprises a connecting part and an inserting cylinder, the connecting part is provided with a plurality of mounting holes matched with the bolts, and the inserting section is detachably inserted into the inserting cylinder.

Optionally, a plurality of multi-point contact spring pieces are arranged in the insertion cylinder, the multi-point contact spring pieces are of an annular structure, and the insertion section penetrates through the multi-point contact spring pieces.

Optionally, the diameter of the multi-point contact spring piece is gradually reduced from two ends to the middle, the insertion section is of a cylindrical structure, and the diameter of the insertion section is between the maximum diameter and the minimum diameter of the multi-point contact spring piece.

Optionally, the multipoint contact elastic sheet is provided with a plurality of hollow holes arranged at regular intervals along the central axis direction thereof.

In summary, the present application includes at least one of the following beneficial effects:

1. the quick installation of the battery pack can be realized only by simple plugging operation without twisting the conductive cable according to strict regulations, the installation operation is simpler, the assembly efficiency is higher, the plugging force is moderate, the service life is longer, and the battery pack is convenient to replace subsequently;

2. the quick plugging electric connector has the advantages that the contact pressure ratio is smaller, the contact resistance is also smaller, even if a larger current passes through the battery pack in the combined use process, the battery pack is not easy to generate heat, the electric energy loss ratio is smaller, electric sparks are not easy to generate, serious fire accidents are not easy to cause, and the quick plugging electric connector is safer;

3. and the design of the multipoint contact elastic sheet can avoid the abrasion caused by the plugging operation as much as possible, and the abrasion is reduced, so that the contact looseness can not be easily caused, the contact resistance can not rise at will, the quick plugging electric connector is ensured to have good electric performance, and the plugging times are more.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a quick-connect/disconnect electrical connector provided in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a male plug according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a female socket according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a multi-point contact spring according to an embodiment of the present disclosure.

Wherein, in the figures, the respective reference numerals:

1. a male plug; 11. a plug section; 111. a conical bevel; 12. a threaded segment; 13. a barrier screw-threaded portion; 2. a female socket; 21. a connecting portion; 211. mounting holes; 22. inserting a cylinder; 3. a multi-point contact spring; 31. and (6) hollowing out the holes.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, a quick-connect/disconnect electrical connector according to an embodiment of the present application will be described.

The battery pack of present container energy storage power station is a good box of encapsulation, connects through cable or copper bar between the battery pack, installs electric connector utmost point ear and outside cable junction on the box.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the cable bending device has the advantages that the operation is complex, the cable is difficult to bend, if the connecting wires are not spliced according to strict regulations, the connection at the joint cannot be firm and is easy to loosen, and if the wire cores of the wires are not well twisted, part of the wire cores are tilted outwards, and once the wires are electrified after being collided with each other, a short circuit is formed, so that electric sparks are easy to generate, and even serious fire accidents can be caused.

In order to solve the above-mentioned defect, the embodiment of the present application provides a quick-plugging electrical connector, please refer to fig. 1, including male plug 1 and female socket 2, male plug 1 and female socket 2 are made by conductive material, mainly used to realize the circular telegram between a plurality of adjacent battery packs, considering based on electric conductivity, cost of manufacture and structural soundness, conductive material is preferably copper or aluminum in this embodiment, or conductive material can also select other alloy materials with good electric conductivity and good structural strength.

The removable grafting assembly of one end of male plug 1 is in female socket 2's one end, and the removable assembly of the other end of male plug 1 is on the battery pack or the electrically conductive support of supplying battery pack installation, and the removable assembly of the other end of female socket 2 is on the electrically conductive support of supplying battery pack installation or battery pack.

Referring to fig. 1, the male plug 1 is connected with the battery pack, the female socket 2 is connected with the conductive bracket for mounting the battery pack, and the battery pack is a box-type structure which can be easily carried, so that the male plug 1 can easily switch positions along with the battery pack, alignment between the male plug 1 and the female socket 2 is facilitated, and the mounting mode is more beneficial for workers to quickly assemble the battery pack.

Of course, in other embodiments, the male plug 1 may be connected to a conductive bracket for mounting the battery pack, and the female socket 2 may also be connected to the battery pack.

Please refer to fig. 1 and fig. 2, the male plug 1 and the battery pack are assembled by screw threads, and the female socket 2 and the conductive bracket mounted by the battery pack are assembled by bolts, so that the installation mode is favorable for fast and firm assembly between the male plug 1 and the battery pack, and fast and firm assembly between the female socket 2 and the conductive bracket mounted by the battery pack.

Of course, in other embodiments, the male plug 1 and the battery pack may be assembled by bolts, and the female socket 2 and the conductive bracket for mounting the battery pack may be assembled by threads. The assembling mode can be not only limited to bolt assembling or thread assembling, but also can be other detachable assembling modes such as plug assembling, clamping assembling and the like.

The male plug 1 comprises a plug section 11 and a threaded section 12, the plug section 11 is detachably plugged into the female socket 2, the threaded section 12 is threadedly assembled on the battery pack, the diameters of the plug section 11 and the threaded section 12 are consistent and are between 10 and 14 millimeters, and the lengths of the plug section 11 and the threaded section 12 are consistent and are between 30 and 36 millimeters (preferably 33 millimeters in the embodiment).

Above-mentioned structural design's male plug 1, not only sound construction, it is not flexible, moreover can be stable with the female socket 2 between peg graft the assembly, the connection between screw thread section 12 and the battery pack is also very firm simultaneously.

A blocking and screwing part 13 is further arranged between the inserting section 11 and the thread section 12, the inserting section 11 is of a cylindrical structure, and the minimum diameter of the blocking and screwing part 13 is larger than the maximum diameter of the inserting section 11. The plugging section 11, the thread section 12 and the blocking and screwing part 13 can be integrally formed.

The barrier screw 13 is substantially disc-shaped, the thickness of the barrier screw 13 is between 3 and 5 mm (preferably 4 mm in the present embodiment), and the diameter of the barrier screw 13 is between 16 and 20 mm (preferably 18 mm in the present embodiment).

And two sides of the blocking and screwing part 13 are respectively provided with a plane, the two planes are symmetrical and parallel (the symmetrical plane of the simulated nut is convenient for clamping), the clamping of a worker by using tools such as a wrench is convenient, then the male plug 1 is rotated, and the installation and the operation are more convenient.

The end part, far away from the threaded section 12, of the plugging section 11 is provided with a conical inclined plane 111, and due to the design of the conical inclined plane 111, the male plug 1 can be conveniently aligned to the female socket 2, so that the assembly is more convenient.

Referring to fig. 1 and 3, the female receptacle 2 includes a connecting portion 21 and an inserting cylinder 22, two mounting holes 211 adapted to the bolts are disposed on the connecting portion 21, the number of the mounting holes 211 may be one, three or more in other embodiments, and the inserting section 11 is detachably inserted into the inserting cylinder 22.

The connecting portion 21 is a lath-shaped structure, the inserting cylinder 22 is a cylindrical structure, the connecting portion 21 and the inserting cylinder 22 are in circular arc transition, the connecting portion 21 and the inserting cylinder 22 can be integrally formed, and the outer diameter of the inserting cylinder 22 is consistent with the diameter of the blocking and screwing portion 13.

The inner diameter of the plug barrel 22 is 1-2 mm larger than the diameter of the plug section 11, the length of the whole female socket 2 is about 85 mm, and the length of the connecting part 21 and the length of the plug barrel 22 are both 40-42 mm (41 mm is preferred in the embodiment).

Referring to fig. 1 and 4, 2 multi-point contact spring pieces 3 are clamped in the insertion tube 22, the multi-point contact spring pieces 3 are made of copper, the length of each multi-point contact spring piece 3 is 12-15 mm (in the embodiment, 13 mm is preferable), the interval between two adjacent multi-point contact spring pieces 3 is 1-3 mm (in the embodiment, 2 mm is preferable), each multi-point contact spring piece 3 is of an annular structure, and the insertion section 11 penetrates through each multi-point contact spring piece 3.

The number of the multi-point contact spring pieces 3 may be one, three or more in other embodiments, and a certain gap still needs to be kept between adjacent multi-point contact spring pieces 3.

The diameter of the multipoint contact elastic sheet 3 is gradually reduced from two ends to the middle, the diameter of the plug-in section 11 is between the maximum diameter and the minimum diameter of the multipoint contact elastic sheet 3, and the multipoint contact elastic sheet 3 is provided with a plurality of hollow holes 31 which are uniformly arranged at intervals along the direction of the central axis of the multipoint contact elastic sheet 3.

The maximum diameter of the multi-point contact spring 3 is consistent with the inner diameter of the plug cylinder 22, and the minimum diameter of the multi-point contact spring 3 is slightly smaller than the maximum diameter of the plug section 11.

This quick plug electrical connector is used for coping with the characteristics that the heavy current that energy storage system battery pack connects is connected specially, in order to make this quick plug electrical connector's contact resistance can not too big and arouse the improvement of temperature rise, so must have sufficient contact pressure, nevertheless if contact pressure too big can cause the required plug power when installing great, the operation is inconvenient, too big contact pressure also can influence this quick plug electrical connector's life.

The mechanical property of the quick-connect/disconnect electrical connector is the plugging force of the quick-connect/disconnect electrical connector, i.e., the force required when the male plug 1 is plugged into the female socket 2, and the force required when the male plug is plugged out. The magnitude of the force F is determined by the magnitude of the pressure of the contact and the coefficient of friction, where F is μ N, where F is the insertion and extraction force, N is the contact pressure of the contact, and μ is the coefficient of friction.

The male plug 1 has certain abrasion when being plugged, the abrasion can cause loose contact, the contact resistance rises, and the electrical performance of the quick plugging electrical connector is influenced, so the abrasion needs to be controlled in a relatively low range to meet the requirement of certain minimum plugging times, namely the requirement of the quick plugging electrical connector on the service life needs to be met.

The electrical performance of the quick-plugging electrical connector is the contact resistance R of the quick-plugging electrical connector, and the lower the resistance of the quick-plugging electrical connector is, the more stable the quick-plugging electrical connector is in use.

The pack of the energy storage battery is usually very high current, the rated current is about 200A, and the heating power of the quick plugging electric joint is I²R, in order to ensure that the temperature rise of the quick plugging electric joint is within an allowable range, the value of the contact resistance R is important. Moreover, the influence of the contact pressure on the contact resistance is very important, and the contact resistance cannot be obviously reduced by only enlarging the contact surface without enough pressure.

The environment performance is also a very important performance of the quick plugging electric connector, the energy storage battery pack is usually used in a container, the operation environment is relatively stable, the requirement is not high, the temperature is generally-20 ℃ to +65 ℃, the relative humidity is below 85%, and the container can generally meet the requirement of IP45, so the design of the quick plugging electric connector ensures the reliable operation in the above environment conditions.

This problem just is solved in the design of multiple spot contact shell fragment 3, because the existence of multiple spot contact shell fragment 3, so contact pressure is more moderate, and when inserting section 11 and inserting in the section of thick bamboo 22, the material of multiple spot contact shell fragment 3 produced plastic deformation, and the surface membrane of multiple spot contact shell fragment 3 is crushed, effectively suppresses the influence of surface membrane to contact resistance, and the effective area of contact of multiple spot contact shell fragment 3 is great simultaneously, can make contact resistance descend rapidly to obtain more stable value.

And the design of the multipoint contact elastic sheet 3 can avoid the abrasion caused by the plugging operation as much as possible, and the abrasion is reduced, so that the contact looseness can not be easily caused, the contact resistance can not rise at will, the quick plugging electric connector is ensured to have good electric performance, and the plugging times are more.

Compared with the prior art, the quick plugging electrical connector has the advantages that the contact pressure ratio is smaller, the resistance is smaller, even if a larger current passes through the battery pack in the combined use process, the battery pack is not easy to generate heat, the electric energy loss ratio is smaller, electric sparks are not easy to generate, serious fire accidents are not easy to cause, and the quick plugging electrical connector is safer.

Need not to splice according to strict regulation electrically conductive cable, only need simple grafting operation, can realize the quick installation of battery pack, installation operation is simpler, and packaging efficiency is higher, and because the plug power is more moderate, life is also more of a specified duration, and convenient follow-up change battery pack.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a quick plug electrical connector which characterized in that: including public plug and female socket, public plug with female socket forms by the conducting material preparation, the removable grafting assembly in of one end of public plug in the one end of female socket, the removable assembly of the other end of public plug is on the battery pack or the electrically conductive support of power supply battery pack installation, the removable assembly of the other end of female socket is on the electrically conductive support of power supply battery pack installation or on the battery pack.

2. The quick connect electrical connector of claim 1, wherein: the male plug is connected with the battery pack, and the female socket is connected with the conductive support installed on the battery pack.

3. The quick connect electrical connector of claim 2, wherein: the male plug is assembled with the battery pack through threads, and the female socket is assembled with the conductive support installed on the battery pack through bolts.

4. The quick connect electrical connector of claim 3, wherein: the male plug comprises a plug section and a threaded section, the plug section is detachably plugged in the female socket, and the threaded section is assembled on the battery pack in a threaded mode.

5. The quick connect electrical connector of claim 4, wherein: the plug-in section with still be provided with between the screw thread section and separate and block the portion of twisting, it is greater than to separate the minimum diameter that blocks the portion of twisting the maximum diameter of plug-in section.

6. The quick connect electrical connector of claim 4, wherein: the end part of the inserting section far away from the thread section is provided with a conical inclined plane.

7. The quick connect electrical connector of claim 4, wherein: the female socket comprises a connecting part and an inserting cylinder, wherein the connecting part is provided with a plurality of mounting holes matched with the bolts, and the inserting section is detachably inserted into the inserting cylinder.

8. The quick connect electrical connector of claim 7, wherein: the plug-in section of thick bamboo is provided with a plurality of multiple spot contact shell fragment in, multiple spot contact shell fragment is the loop configuration, the grafting section runs through multiple spot contact shell fragment.

9. The quick connect electrical connector of claim 8, wherein: the diameter of the multipoint contact elastic sheet is gradually reduced from two ends to the middle, the inserting section is of a cylindrical structure, and the diameter of the inserting section is between the maximum diameter and the minimum diameter of the multipoint contact elastic sheet.

10. The quick connect electrical connector of claim 8, wherein: the multipoint contact elastic sheet is provided with a plurality of hollow holes which are uniformly arranged at intervals along the direction of the central axis of the multipoint contact elastic sheet.