CN217134575U

CN217134575U - Install voltage balancing unit in power lithium cell package

Info

Publication number: CN217134575U
Application number: CN202123043149.2U
Authority: CN
Inventors: 张恒祥
Original assignee: Yien New Power Technology Shandong Co ltd
Current assignee: Yien New Power Technology Shandong Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-08-05
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a voltage balancing device installed in a power lithium battery pack, which comprises a box body, wherein the top surface of the box body is provided with a box cover and a battery pack, and the battery pack is fixedly installed on the inner bottom surface of the box body; the groove is formed in the front side face of the box body; the mounting groove is formed in the front side wall of the box body, is positioned on the top surface of the groove and is communicated with the groove; the shielding mechanism is arranged on the box body; the pushing mechanism is connected with the shielding mechanism; and the voltage balancing mechanism is arranged on the box body. This install voltage balancing unit in power lithium cell package provides great balanced current, can the balanced voltage fast, also need not the battery producer to maintain to the scene, and the user oneself just can operate, saves a large amount of human costs.

Description

Install voltage balancing unit in power lithium cell package

Technical Field

The utility model relates to a power lithium cell technical field specifically is an install voltage balancing unit in power lithium cell package.

Background

The power battery is a power supply for providing a power source for tools, and is a storage battery for providing power for electric automobiles, electric trains, electric bicycles and golf carts, and is widely applied to the field of mechanical vehicles such as many high-altitude operation carts and the like at present;

however, most of the lithium batteries used by mechanical vehicles such as high-rise vehicles and the like do not have the automatic balancing function, the current is too small, and the problem of voltage imbalance cannot be well solved, so most of battery manufacturers can arrange after-sales personnel to manually maintain the batteries on the site of a client, and serious batteries are even returned to the manufacturers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an install voltage balancing unit in power lithium cell package to the lithium cell that mechanical vehicles such as the current most of high machines used does not possess automatic balanced function automatic equalizing current undersize in solving above-mentioned background art, the unbalanced problem of solution voltage that can not be fine, so most of battery manufacturers can arrange that after-sales personnel carry out manual maintenance to the customer scene, problem in the factory is returned even to serious person's battery package.

In order to achieve the above object, the utility model provides a following technical scheme: a voltage balancing device installed in a power lithium battery pack comprises: a box body, a box cover is arranged on the top surface of the box body,

the battery pack is fixedly arranged on the inner bottom surface of the box body;

the groove is formed in the front side face of the box body;

the mounting groove is formed in the front side wall of the box body, is positioned on the top surface of the groove and is communicated with the groove;

the shielding mechanism is arranged on the box body;

the pushing mechanism is connected with the shielding mechanism;

and the voltage balancing mechanism is arranged on the box body.

By adopting the technical scheme, the battery can be balanced conveniently, and larger balancing current can be provided.

As a preferred aspect of the present invention, the shielding mechanism includes:

the two symmetrically arranged sliding grooves are formed in the front side wall of the box body and communicated with the groove;

the two symmetrically arranged sliding blocks are in sliding connection with the sliding grooves;

the baffle is fixedly arranged on the inner side surface of the sliding block and extends into the mounting groove;

the convex plate is fixedly and vertically arranged at the lower end of the front side face of the baffle.

By adopting the technical scheme, the effect of covering protection is convenient to play.

As an optimal technical solution of the present invention, the pushing mechanism includes:

the hole groove is formed in the top surface of the baffle;

the fixing rod is fixedly and vertically arranged on the top surface of the mounting groove, extends into the hole groove and is connected with the hole groove in a sliding manner;

the spring, the spring housing is located the outside of dead lever, just the upper and lower both ends of spring respectively with the top surface of mounting groove with the top surface fixed connection of baffle.

By adopting the technical scheme, the baffle can be conveniently pushed upwards and then can be enabled to be reset and moved downwards through the arrangement of the spring.

As an optimal technical scheme of the utility model, the dead lever equidistance evenly sets up, just the length of dead lever is less than the degree of depth in hole groove.

By adopting the technical scheme, the baffle is convenient to ensure to stably move upwards.

As the utility model discloses a preferred technical scheme, voltage balance mechanism includes:

the power battery control and management system is fixedly arranged on the inner wall of the rear side of the box body;

the voltage balancing module is fixedly arranged on the inner wall of the front side of the box body and is communicated with the power battery control management system through a CAN communication port;

the 220 VAC-to-5 VDC switching power supply is arranged in the groove, and the DC output end of the 220 VAC-to-5 VDC switching power supply is connected with the DC input end of the voltage balancing module;

the three hole supply socket of 220VAC, three hole supply socket of 220VAC install in the recess, and three hole supply socket of 220VAC connects the alternating current input who changes 5VDC switching power supply 220 VAC.

By adopting the technical scheme, the equalization operation can be conveniently, rapidly and effectively carried out.

Compared with the prior art, the beneficial effects of the utility model are that: the voltage balancing device arranged in the power lithium battery pack provides large balancing current, can quickly balance voltage, does not need a battery manufacturer to maintain on site, and can be operated by a user, so that a large amount of labor cost is saved;

1. when the convex plate is pushed upwards, the baffle moves upwards stably under the action of the sliding groove and the sliding block, so that the fixed rod extends into the hole groove and compresses the spring at the same time, and the baffle is switched from 220VAC to 5VDC switching power supply and the front side of a 220VAC three-hole power socket is moved;

2. when the voltage balancing function needs to be started, the lithium battery is started firstly, then the three-hole alternating-current plug is inserted into the 220VAC three-hole power socket, alternating current is switched on, at the moment, the 220VAC is switched to the 5VDC switching power supply to be started, 5VDC is output at the output end, the voltage balancing module is started, battery string information needing power compensation is transmitted to the voltage balancing module through the CAN, the voltage balancing module controls the switch to be closed according to a power compensation strategy, power compensation is carried out on the low-voltage battery string, and large balancing current is provided.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the structure at A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure at B-B of FIG. 2 according to the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 2;

fig. 5 is a schematic diagram of the circuit structure of the voltage equalizing mechanism of the present invention.

In the figure: 1. a box body; 2. a box cover; 3. a battery pack; 4. a groove; 5. mounting grooves; 6. a chute; 7. a slider; 8. a baffle plate; 9. a convex plate; 10. a hole groove; 11. fixing the rod; 12. a spring; 13. a power battery control management system; 14. a voltage equalization module; 15. a 220VAC to 5VDC switching power supply; 16. a 220VAC three-hole power outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the technical solution of the present invention is: a voltage balancing device installed in a power lithium battery pack comprises a box body 1, a box cover 2 is arranged on the top surface of the box body 1, a battery pack 3 is fixedly installed on the inner bottom surface of the box body 1, a groove 4 is formed in the front side surface of the box body 1, an installation groove 5 is formed in the front side wall of the box body 1, the installation groove 5 is located on the top surface of the groove 4, the installation groove 5 is communicated with the groove 4, two symmetrically arranged sliding chutes 6 are arranged in the front side wall of the box body 1, and the sliding chutes 6 are communicated with the groove 4, two symmetrically arranged sliding blocks 7 are connected with the sliding chute 6 in a sliding way, the baffle 8 is fixedly arranged on the inner side surface of the sliding blocks 7, and the baffle plate 8 extends into the mounting groove 5, the convex plate 9 is fixedly and vertically arranged at the lower end of the front side surface of the baffle plate 8, the baffle 8 is stably moved upwards under the action of the chute 6 and the slide block 7 by pushing the hand-held convex plate 9 upwards;

the hole groove 10 is formed in the top surface of the baffle plate 8, the fixing rod 11 is fixedly and vertically installed on the top surface of the installation groove 5, the fixing rod 11 extends into the hole groove 10, the fixing rod 11 is in sliding connection with the hole groove 10, the spring 12 is sleeved on the outer side of the fixing rod 11, the upper end and the lower end of the spring 12 are fixedly connected with the top surface of the installation groove 5 and the top surface of the baffle plate 8 respectively, the fixing rods 11 are uniformly arranged at equal intervals, the length of the fixing rod 11 is smaller than the depth of the hole groove 10, the fixing rod 11 extends into the hole groove 10 when the baffle plate 8 moves upwards, and the spring 12 is compressed at the same time;

the power battery control and management system 13 is fixedly arranged on the inner wall of the rear side of the box body 1, the voltage equalization module 14 is fixedly arranged on the inner wall of the front side of the box body 1, the voltage equalization module 14 is communicated with the power battery control and management system 13 through a CAN communication port, the 220 VAC-to-5 VDC switching power supply 15 is arranged in the groove 4, the DC output end of the 220 VAC-to-5 VDC switching power supply 15 is connected with the DC input end of the voltage equalization module 14, the 220VAC three-hole power socket 16 is arranged in the groove 4, the 220VAC three-hole VAC power socket 16 is connected with the AC input end of the 220 VAC-to-5 VDC switching power supply 15, the 220 VAC-to-5 VDC switching power supply 15 and the 220VAC three-hole switching power socket 16 are exposed when the baffle plate 8 is moved upwards, the AC three-hole plug is inserted into the 220VAC three-hole power socket 16 to realize power supply, the 220VAC is started to be turned to the 5VDC switching power supply 15, the 5VDC output at the output end, and the voltage equalization module is started 14, the information of the battery string needing power supplement is transmitted to the voltage balancing module 14 through the CAN, and the voltage balancing module 14 controls the switch to be closed according to a power supplement strategy to supplement power to the low-voltage battery string.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A voltage balancing device installed in a power lithium battery pack comprises: a box body (1), a box cover (2) is arranged on the top surface of the box body (1), the box is characterized in that,

the battery pack (3), the battery pack (3) is fixedly arranged on the inner bottom surface of the box body (1);

the groove (4) is formed in the front side face of the box body (1);

the mounting groove (5) is formed in the front side wall of the box body (1), the mounting groove (5) is located on the top surface of the groove (4), and the mounting groove (5) is communicated with the groove (4);

a shielding mechanism provided on the box body (1);

the pushing mechanism is connected with the shielding mechanism;

the voltage balancing mechanism is arranged on the box body (1).

2. The voltage equalizing device of claim 1, wherein the shielding mechanism comprises:

the two symmetrically arranged sliding chutes (6) are formed in the front side wall of the box body (1), and the sliding chutes (6) are communicated with the groove (4);

the two sliding blocks (7) are symmetrically arranged, and the two sliding blocks (7) are in sliding connection with the sliding groove (6);

the baffle (8) is fixedly arranged on the inner side surface of the sliding block (7), and the baffle (8) extends into the mounting groove (5) to be arranged;

the convex plate (9), the convex plate (9) is fixedly and vertically arranged at the lower end of the front side surface of the baffle plate (8).

3. The voltage equalizing device installed in a lithium-ion power battery pack as claimed in claim 2, wherein the pushing mechanism comprises:

the hole groove (10) 10, the hole groove (10) 10 is arranged on the top surface of the baffle plate (8) 8;

the fixing rod (11) is fixedly and vertically arranged on the top surface of the mounting groove (5), the fixing rod (11) extends into the hole groove (10) to be arranged, and the fixing rod (11) is connected with the hole groove (10) in a sliding mode;

the spring (12), the outside of dead lever (11) is located to spring (12) cover, just the upper and lower both ends of spring (12) respectively with the top surface of mounting groove (5) with the top surface fixed connection of baffle (8).

4. The voltage equalizing device installed in a power lithium battery pack according to claim 3, wherein the fixing rods (11) are uniformly arranged at equal intervals, and the length of the fixing rods (11) is less than the depth of the hole grooves (10).

5. The voltage equalizing device installed in a lithium-ion power battery pack as claimed in claim 3, wherein the voltage equalizing mechanism comprises:

the power battery control and management system (13), the power battery control and management system (13) is fixedly arranged on the inner wall of the rear side of the box body (1);

the voltage balancing module (14) is fixedly arranged on the inner wall of the front side of the box body (1), and the voltage balancing module (14) is communicated with the power battery control management system (13) through a CAN communication port;

the 220 VAC-to-5 VDC switching power supply (15) is arranged in the groove (4), and the DC output end of the 220 VAC-to-5 VDC switching power supply (15) is connected with the DC input end of the voltage balancing module (14);

the three hole supply socket (16) of 220VAC, three hole supply socket (16) of 220VAC install in recess (4), and three hole supply socket (16) of 220VAC connect the alternating current input of 220VAC commentaries on classics 5VDC switching power supply (15).