CN217561566U

CN217561566U - Power battery series connection test integrated device

Info

Publication number: CN217561566U
Application number: CN202221173623.5U
Authority: CN
Inventors: 王海生; 周明辉; 张良新
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-10-11
Anticipated expiration: 2032-05-16

Abstract

The utility model discloses a power battery series connection test integrated device, including box, relay and a plurality of high-pressure aerial sockets, all high-pressure aerial sockets are located the box outside, and the positive end and the negative end of all high-pressure aerial sockets all pass the box and are connected in series inside the box, the normally open contact of relay connects between two adjacent high-pressure aerial sockets, and the positive end of test cabinet is connected with the positive end of the first high-pressure aerial socket in the box, and the negative end of test cabinet is connected with the negative end of the last high-pressure aerial socket in the box, and each high-pressure aerial socket all matches with the aerial socket of battery package; the utility model has the advantages that: the operation is simple, the error is not easy to occur, and the safety accident is greatly avoided.

Description

Power battery series connection test integrated device

Technical Field

The utility model relates to a power battery test field, more specifically relates to a power battery series connection test integrated device.

Background

With the national environmental protection importance and the rapid development of new energy industries, the lithium battery industry enters a rapid development stage, the power battery needs to perform factory inspection on a battery pack before the power battery leaves a factory, wherein the battery pack comprises an electrical performance test, and the battery pack is subjected to one-time complete charging and discharging test to detect the performance of the battery pack.

At present, the miniature electric vehicle is popular in the market due to low price and strong practicability, but the low-power battery pack used by the miniature electric vehicle is a great challenge to the capacity of a battery factory, particularly in an electrical performance test, the requirement on the number of test cabinets is great, and a plurality of manufacturers adopt a plurality of battery packs to be connected in series for testing to solve the problem. Chinese patent publication No. CN112684268a discloses a test system for simultaneously testing a plurality of battery systems, which comprises a battery system charge and discharge detection device, a battery system and a PC terminal, wherein a plurality of positive and negative electrodes of the battery system are connected in series end to end, and the battery system is connected with the battery system charge and discharge detection device. The utilization rate of the charging and discharging detection equipment is greatly improved, and the equipment investment is reduced; the manpower utilization rate is greatly improved in the mass high-rhythm production, and the test period is shortened. However, for the series test of the battery packs, the battery packs need to be connected in series and then tested, the operation is complex, errors are easy to occur, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in the series test of prior art battery package, and the operation is complicated easily makes mistakes, has very big potential safety hazard.

The utility model discloses a following technical means realizes solving above-mentioned technical problem: the utility model provides a power battery series connection test integrated device, includes that box, relay and a plurality of high pressure are inserted by plane, and all high pressure are inserted by plane and are all located the box outside, and all high pressure are inserted by plane positive end and negative terminal and are all passed the box and at the inside series connection of box, the normally open contact of relay connects between two adjacent high pressure are inserted by plane, and the positive end that first high pressure was inserted by plane in the positive end of test cabinet and the box is connected, and the negative end that last high pressure was inserted by plane in the negative end of test cabinet and the box is connected, and every high pressure is inserted by plane and all is matchd with the inserting of battery package.

The utility model discloses to many batteries package series test, develop a device, simplify battery package high pressure series operation, only need insert the high pressure aviation plug that corresponds with inserting battery package aviation plug can realize the series test of many batteries package, easy operation is difficult for makeing mistakes, greatly avoids taking place the incident.

Furthermore, the high-voltage aerial plug is provided with a first positive high-voltage wire as a positive end and a first negative high-voltage wire as a negative end, and the first positive high-voltage wire and the first negative high-voltage wire of all the high-voltage aerial plugs penetrate through the box body and are connected in series inside the box body; the test cabinet is provided with a second positive pole high-voltage wire as a positive end and a second negative pole high-voltage wire as a negative end, the second positive pole high-voltage wire of the test cabinet is connected with a first positive pole high-voltage wire of a first high-voltage aerial-plug in the box body, and the second negative pole high-voltage wire of the test cabinet is connected with a first negative pole high-voltage wire of a last high-voltage aerial-plug in the box body.

Furthermore, the tail parts of the first positive high-voltage wire and the first negative high-voltage wire of the high-voltage aerial plug are respectively fixed with a connecting terminal.

Furthermore, the power battery series connection test integrated device further comprises a switching insulating column, the switching insulating column comprises an insulating stud, a nut, a third positive high-voltage wire and a third negative high-voltage wire, one end of the third positive high-voltage wire and one end of the third negative high-voltage wire are all sleeved on the insulating stud and are fixed through the nut, and the other ends of the third positive high-voltage wire and the third negative high-voltage wire are not overlapped in space.

Furthermore, the connecting terminal at the tail of the first negative high-voltage wire of the current high-voltage aerial plug is connected with the other end of the third negative high-voltage wire of one switching insulating column, and the other end of the third positive high-voltage wire of the switching insulating column is connected with the connecting terminal at the tail of the first positive high-voltage wire of the next high-voltage aerial plug.

Furthermore, the connection terminal is an O-shaped terminal, the other end of the third negative high-voltage wire of one of the adapter insulating columns passes through the O-shaped terminal at the tail of the first negative high-voltage wire of the current high-voltage aerial plug to be in contact with the O-shaped terminal, and the other end of the third positive high-voltage wire of the adapter insulating column passes through the O-shaped terminal at the tail of the first positive high-voltage wire of the next high-voltage aerial plug to be in contact with the O-shaped terminal.

Furthermore, the number of the test battery packs is adjusted by replacing the connecting position of the second negative high-voltage wire of the test cabinet.

Furthermore, the high-voltage aerial plug is provided with a positive pole mark, a negative pole mark and a position mark.

Further, power battery series test integrated device still includes the fuse, the fuse is connected in series between first high-pressure aviation plug and second high-pressure aviation plug with the normally open contact of relay.

Furthermore, the box body is made of insulating materials.

The utility model has the advantages of:

(1) The utility model discloses to many batteries package series test, develop a device, simplify battery package high pressure series operation, only need insert the high pressure aviation plug that corresponds with inserting battery package aviation plug can realize the series test of many batteries package, easy operation is difficult for makeing mistakes, greatly avoids taking place the incident.

(2) The utility model discloses a high pressure is inserted the afterbody by plane and is set up O type terminal, and the other end that directly passes the third negative pole high-voltage line or the third positive pole high-voltage line of switching insulated column passes O type terminal and can realize being connected between the two, and the wiring is convenient.

(3) The utility model discloses be equipped with positive negative pole sign and position sign on the high pressure boat, according to positive negative pole sign quick identification positive negative pole in the use, avoid misconnection, according to position sign and corresponding battery package high pressure boat insert the opposite insertion in the use, avoid the wrong potential safety hazard that inserts, the significantly reduced.

(4) The utility model discloses it has fuse and relay to connect in the battery package series test circuit, and the fuse can fuse under the abnormal conditions such as external circuit short circuit or electric current are too big appearing to carry out safety protection to whole testing arrangement, the normally open contact of relay whether has got electricity according to its coil and changes the break-make state, can be used for opening of whole device to stop the control.

Drawings

Fig. 1 is a schematic structural view of an integrated power battery series test device disclosed in an embodiment of the present invention;

fig. 2 is a schematic structural view of a high voltage aerial plug in the power battery series connection test integrated device disclosed in the embodiment of the present invention;

fig. 3 is a schematic structural view of a transfer insulating column in an integrated device for power battery series test according to an embodiment of the present invention.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below in combination with the technical solution of the embodiments of the present invention, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the power battery series connection test integrated device comprises a box body 1, a plurality of high-voltage aerial sockets 2, a switching insulating column 3, a relay 5 and a fuse 6.

The box body 1 is made of insulating materials, and the insulating materials comprise metal materials with insulating protection. All high-voltage aerial sockets 2 are located outside the box body 1, the high-voltage aerial sockets 2 are provided with a first positive high-voltage wire 21 serving as positive ends of the high-voltage aerial sockets, a first negative high-voltage wire 22 serving as negative ends of the high-voltage aerial sockets, and red and black insulating layers are used for distinguishing and identifying. A plurality of first through holes are correspondingly formed in the positions, where the high-voltage aerial plugs 2 are located, above the box body 1, the first positive high-voltage wires 21 and the first negative high-voltage wires 22 of all the high-voltage aerial plugs 2 penetrate through the first through holes in the box body 1 and are connected in series inside the box body 1, the series connection mode among the high-voltage aerial plugs 2 is a negative-positive-negative-positive … mode, namely the first negative high-voltage wire 22 of the current high-voltage aerial plug 2 is connected with the first positive high-voltage wire 21 of the next high-voltage aerial plug 2 through the switching insulating column 3.

Referring to fig. 1 in conjunction with fig. 2 and fig. 3, a connection terminal 23 is fixed to the tail of each of the first positive high-voltage wire 21 and the first negative high-voltage wire 22 of the high-voltage aviation plug 2, and the connection terminal 23 is an O-shaped terminal. The switching insulating column 3 includes an insulating stud 31, a nut 32, a third positive high-voltage wire 33 and a third negative high-voltage wire 34, where one end of each of the third positive high-voltage wire 33 and the third negative high-voltage wire 34 is sleeved on the insulating stud 31 and fixed by the nut 32, and the other end of each of the third positive high-voltage wire 33 and the third negative high-voltage wire 34 is not overlapped in space, and if the third positive high-voltage wire 33 and the third negative high-voltage wire 34 are overlapped, the positive and negative electrodes are connected to form a short circuit, so that the third positive high-voltage wire 33 and the third negative high-voltage wire 34 should be staggered by a certain angle to avoid the short circuit caused by the contact of the two, in this embodiment, the other ends of the third positive high-voltage wire 33 and the third negative high-voltage wire 34 are located in opposite directions, that is, that the two directions are 180 °. In this embodiment, the switching insulating column 3 plays a role of connecting two adjacent high-voltage aerial plugs 2, specifically, the other end of the third negative high-voltage wire 34 of one switching insulating column 3 passes through the O-shaped terminal at the tail of the first negative high-voltage wire 22 of the current high-voltage aerial plug 2 to contact therewith, the other end of the third positive high-voltage wire 33 of the switching insulating column 3 passes through the O-shaped terminal at the tail of the first positive high-voltage wire 21 of the next high-voltage aerial plug 2 to contact therewith, for example, in fig. 1, the other end of the third negative high-voltage wire 34 of the switching insulating column 3 passes through the O-shaped terminal at the tail of the first negative high-voltage wire 22 of the 2 nd high-voltage aerial plug 2 to contact therewith, and the other end of the third positive high-voltage wire 33 of the switching insulating column 3 passes through the O-shaped terminal at the tail of the first positive high-voltage wire 21 of the 3 rd high-voltage aerial plug 2 to contact therewith.

The numbers of '1, 2, 3 …' are pasted on the plurality of high-voltage aerial plug 2 to serve as position marks of the high-voltage aerial plug, and the aerial plug is inserted oppositely according to the position marks and the aerial plug of the corresponding battery pack in use, so that the wrong insertion is avoided. The arrangement mode of the high-voltage aviation plugs 2 is not particularly limited, but for the sake of the beauty of the testing device and the convenience of testing, the arrangement of the high-voltage aviation plugs 2 may be an array arrangement, and the array direction is parallel to the long edge of the box body 1. Every high pressure aviation plug 2 model matches with the aviation plug that corresponds the battery package that detects, only needs insert the aviation plug of battery package and insert the high pressure aviation plug 2 that corresponds and can realize the series connection test of many battery packages, easy operation, difficult mistake, greatly avoid taking place the incident.

The test cabinet 4 is provided with a second anode high-voltage wire 41 as the positive end thereof, a second cathode high-voltage wire 42 as the negative end thereof, the left side of the box body 1 is provided with two second through holes, the second anode high-voltage wire 41 of the test cabinet 4 penetrates through the second through holes to be connected with the first anode high-voltage wire 21 of the first high-voltage aerial plug 2 in the box body 1, and the second cathode high-voltage wire 42 of the test cabinet 4 penetrates through the other second through hole to be connected with the first cathode high-voltage wire 22 of the last high-voltage aerial plug 2 in the box body 1.

And a normally open contact of the relay 5 and the fuse 6 are connected in series between the first high-voltage aerial plug 2 and the second high-voltage aerial plug 2 and used for safety protection of the integrated device. The relay 5 is a high-voltage direct-current relay, a coil of the relay is connected with a control button in series, when the test is started, the coil is electrified by pressing the control button, the normally open contact of the relay 5 is attracted, when the test is finished, the control button is pressed again, the coil is electrified, and the normally open contact of the relay 5 is turned off by attraction. The fuse 6 can be fused under the abnormal conditions such as short circuit of an external circuit or excessive current, so that the whole testing device is safely protected.

It should be noted that the utility model discloses series connection test battery package quantity is adjustable, tests battery package quantity regulation through the second negative pole high-voltage line 42 hookup location of changing test cabinet 4, for example connects the second negative pole high-voltage line 42 of test cabinet 4 on the switching insulated column 3 after 3 rd high pressure boat plug 2 realizes the series test between the three battery package promptly.

Through above technical scheme, the utility model discloses to many batteries package series test, develop a device, simplify battery package high pressure series operation, only need insert the high pressure of corresponding with inserting of battery package and insert the series test that 2 can realize many batteries package, easy operation is difficult for makeing mistakes, greatly avoids taking place the incident.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a power battery series connection test integrated device, its characterized in that, insert including box, relay and a plurality of high pressure, all high pressure are inserted by plane and are all located the box outside, and all high pressure are inserted by plane positive end and negative terminal and are all passed the box and at the inside series connection of box, the normally open contact of relay connects between two adjacent high pressure are inserted by plane, and the positive end of first high pressure is inserted by plane in the positive end and the box of test cabinet is connected, and the negative terminal of test cabinet is connected with the negative terminal of last high pressure is inserted by plane in the box, and every high pressure is inserted by plane all and is matchd with the package of battery.

2. The power battery series connection test integrated device as claimed in claim 1, wherein the high-voltage aerial plug is provided with a first positive high-voltage wire as a positive end and a first negative high-voltage wire as a negative end, and the first positive high-voltage wire and the first negative high-voltage wire of all the high-voltage aerial plugs penetrate through the box body and are connected in series inside the box body; the test cabinet is provided with a second positive high-voltage wire as the positive end and a second negative high-voltage wire as the negative end, the second positive high-voltage wire of the test cabinet is connected with a first positive high-voltage wire of a first high-voltage aerial plug in the box body, and the second negative high-voltage wire of the test cabinet is connected with a first negative high-voltage wire of a last high-voltage aerial plug in the box body.

3. The integrated device for series connection and test of power batteries according to claim 2, wherein connecting terminals are fixed to the tail portions of the first positive high-voltage wire and the first negative high-voltage wire of the high-voltage aerial plug.

4. The power battery series connection test integrated device according to claim 3, further comprising a switching insulating column, wherein the switching insulating column comprises an insulating stud, a nut, a third positive high-voltage wire and a third negative high-voltage wire, one end of each of the third positive high-voltage wire and the third negative high-voltage wire is sleeved on the insulating stud and fixed through the nut, and the other end of each of the third positive high-voltage wire and the third negative high-voltage wire is not overlapped in space.

5. The integrated device for series connection and test of power batteries according to claim 4, wherein the connecting terminal at the tail of the first negative high-voltage wire of the current high-voltage aerial plug is connected with the other end of the third negative high-voltage wire of one switching insulating column, and the other end of the third positive high-voltage wire of the switching insulating column is connected with the connecting terminal at the tail of the first positive high-voltage wire of the next high-voltage aerial plug.

6. The integrated device for series connection and test of power batteries according to claim 5, wherein the connection terminals are O-shaped terminals, the other end of the third negative high voltage wire of one of the adaptive insulation columns passes through the O-shaped terminal at the tail of the first negative high voltage wire of the current high voltage aerial socket to be in contact with the O-shaped terminal, and the other end of the third positive high voltage wire of the adaptive insulation column passes through the O-shaped terminal at the tail of the first positive high voltage wire of the next high voltage aerial socket to be in contact with the O-shaped terminal.

7. The integrated device for power battery series connection and test as claimed in claim 2, wherein the number of the test battery packs is adjusted by replacing the connection position of the second negative high-voltage line of the test cabinet.

8. The integrated device for series connection and test of power batteries according to claim 1, wherein the high-voltage aviation plug is provided with a positive and negative pole mark and a position mark.

9. The integrated power battery series test device of claim 1, further comprising a fuse connected in series with the normally open contact of the relay between the first high voltage aerial plug and the second high voltage aerial plug.

10. The integrated device for series connection and test of power batteries according to claim 1, wherein the box body is made of an insulating material.