CN220934257U

CN220934257U - Battery input and output structure and battery pack

Info

Publication number: CN220934257U
Application number: CN202322754918.2U
Authority: CN
Inventors: 潘群林; 李小兵; 徐建国; 李润朝; 廖兴群
Original assignee: Guangdong Highpower New Energy Technology Co Ltd
Current assignee: Guangdong Highpower New Energy Technology Co Ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-05-10
Anticipated expiration: 2033-10-13

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery input and output structure and a battery pack. The utility model provides a battery input/output structure, which comprises a housin, grafting terminal and PCB board, the casing is including upper casing and the inferior valve that involutes, the upper casing is equipped with the seal groove, the inferior valve is equipped with first mounting groove, the PCB board is installed in first mounting groove, be equipped with sealing portion on the side of PCB face upward the casing, grafting terminal installs on sealing portion, be equipped with the sealing backing plate on the sealing portion, the sealing backing plate sets up around grafting terminal, the sealing backing plate is just to the seal groove, the seal groove is just to the sealing backing plate involution formation seal chamber, the cell wall of seal groove is equipped with spliced eye and sealing washer, the sealing washer links to each other with the pore wall of spliced eye, the sealing washer is equipped with the grafting window, grafting window just to grafting terminal. The sealing washer forms first layer waterproof construction, and sealed storehouse forms second floor waterproof construction, can effectively avoid in the moisture in the sealed storehouse gets into other structures of battery package, has improved waterproof effect and the security of battery package.

Description

Battery input and output structure and battery pack

Technical Field

The utility model belongs to the technical field of batteries, and particularly relates to a battery input and output structure and a battery pack.

Background

The battery PACK is a product which is required by customers and is formed by combining and processing a battery core, a battery protection board, a battery connecting sheet, label paper and the like through a battery PACK process.

The existing battery pack comprises a shell, a battery cell, a plug terminal and a PCB board, wherein an installation cavity is formed in the shell, the battery cell and the PCB board are installed in the installation cavity, the battery cell is electrically connected with the PCB board, a plug window is formed in the shell, the plug terminal is connected with the shell, the plug end of the plug terminal is aligned with the plug window so as to be plugged by plugs of other equipment, and the plug terminal is electrically connected with the PCB board.

The plugging window of the battery pack is exposed, and moisture, air vapor and external impurities can enter the battery pack through the plugging window to corrode the plugging terminal and the PCB, so that the battery pack is damaged, and even equipment is damaged.

Disclosure of utility model

The technical problems to be solved by the utility model are as follows: aiming at the problem that moisture or impurities easily enter the existing battery pack, the battery input and output structure and the battery pack are provided.

In order to solve the technical problems, on the one hand, the embodiment of the utility model provides a battery input/output structure, which comprises a shell, a plug terminal and a PCB board, wherein the shell comprises an upper shell and a lower shell which are in butt joint, the upper shell is provided with a sealing groove, the lower shell is provided with a first mounting groove, the PCB board is arranged in the first mounting groove, a sealing part is arranged on the side surface of the PCB board facing the upper shell, the plug terminal is arranged on the sealing part, a sealing base plate is arranged on the sealing part, the sealing base plate is arranged around the plug terminal, the sealing base plate faces the sealing groove, and the sealing groove and the sealing base plate are in butt joint to form a sealing bin;

The cell wall of seal groove is equipped with spliced eye and sealing washer, the sealing washer with the pore wall of spliced eye links to each other, the sealing washer is equipped with the grafting window, the grafting window is just right the grafting terminal.

Optionally, the upper shell is provided with a second mounting groove, a baffle is arranged in the second mounting groove, the baffle and the groove wall of the second mounting groove enclose the sealing groove, and the inserting holes are formed in the groove wall of the second mounting groove.

Optionally, the upper shell is provided with a first connection structure, the lower shell is provided with a second connection structure, and the first connection structure is matched with the second connection structure so as to tightly press the groove wall of the second mounting groove and the baffle plate on the sealing backing plate.

Optionally, the first connecting structure includes a first threaded hole, the second connecting structure includes a second threaded hole, the first threaded hole is matched with the second threaded hole, and the upper shell and the lower shell are connected together through a penetrating screw.

Optionally, the first threaded hole is provided with a plurality of, and a plurality of first threaded holes are along the border of epitheca sets up, the quantity of second threaded hole with the quantity of first threaded hole is unanimous, and a plurality of second threaded holes is along the border of inferior valve sets up.

Optionally, a third connection structure is arranged on the upper shell, the third connection structure is arranged in the middle of the upper shell, a fourth connection structure is arranged on the PCB, and the third connection structure is matched with the fourth connection structure.

Optionally, the sealing pad is formed by curing foamed silica gel.

Optionally, the sealing ring is formed by solidifying foaming silica gel.

Optionally, the device further comprises a monitoring module, wherein the monitoring module comprises a sensor, the sensor is connected with the PCB, the sensor is used for detecting the water quantity in the sealed bin, and the monitoring module can cut off a circuit of the battery pack when water enters the sealed bin.

According to the battery input/output structure provided by the embodiment of the utility model, the sealing ring can be filled in the gap between the plug and the plug hole of the corresponding device to form the first layer waterproof structure, so that external moisture or sundries are prevented from entering the sealing bin, the plug terminal is plugged with the plug of the corresponding device in the sealing bin, the plug terminal is isolated from other structures of the battery pack to form the second layer waterproof structure, moisture in the sealing bin is prevented from entering other structures of the battery pack, and the waterproof effect and the safety of the battery pack are improved.

On the other hand, the embodiment of the utility model also provides a battery pack, which comprises a battery core and the battery input/output structure.

Drawings

Fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the upper shell of FIG. 1;

FIG. 3 is another view of FIG. 2;

fig. 4 is a schematic view illustrating an internal structure of a battery pack according to an embodiment of the present utility model.

Reference numerals in the specification are as follows: 1. an upper case; 2. a lower case; 3. a seal ring; 4. a plug window; 5. a plug hole; 6. a first connection structure; 7. a first threaded hole; 8. a second mounting groove; 9. a baffle; 10. sealing grooves; 11. a third connection structure; 12. a second connection structure; 13. a second threaded hole; 14. a sealing backing plate; 15. a sensor; 16. a PCB board; 17. a battery cell; 18. a fourth connection structure; 19. a first mounting groove; 20. and (5) inserting terminals.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model 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 for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a battery pack, including a battery core 17 and a battery input/output structure, where the battery input/output structure includes a housing, a plug terminal 20, and a PCB board 16, the housing includes an upper housing 1 and a lower housing 2 that are opposite, the upper housing 1 is provided with a seal groove 10, the lower housing 2 is provided with a first mounting groove 19, the PCB board 16 is mounted in the first mounting groove 19, a side of the PCB board 16 facing the upper housing 1 is provided with a sealing portion, the plug terminal 20 is mounted on the sealing portion, a sealing pad 14 is disposed on the sealing portion, the sealing pad 14 is disposed around the plug terminal 20, the sealing pad 14 faces the seal groove 10, and the seal groove 10 and the sealing pad 14 are opposite to form a seal cabin.

The cell wall of seal groove 10 is equipped with spliced eye 5 and sealing washer 3, sealing washer 3 with spliced eye 5's pore wall links to each other, sealing washer 3 is equipped with grafting window 4, grafting window 4 just to grafting terminal 20.

The battery cell 17 is installed between the lower shell 2 and the PCB 16, the battery cell 17 is electrically connected with the PCB 16, and the battery cell 17 is fixed on the lower shell 2.

In an embodiment, the upper shell 1 is provided with a second installation groove 8, a baffle 9 is arranged in the second installation groove 8, the baffle 9 and the groove wall of the second installation groove 8 enclose the seal groove 10, and the plug hole 5 is arranged on the groove wall of the second installation groove 8. The baffle 9 and the second mounting groove 8 enclose a sealing groove 10, so that the structure is simple and the manufacturing is convenient.

In one embodiment, the upper shell 1 is provided with a first connecting structure 6, the lower shell 2 is provided with a second connecting structure 12, and the first connecting structure 6 cooperates with the second connecting structure 12 to press the groove wall of the second mounting groove 8 and the baffle 9 against the sealing pad 14. Specifically, the shape of the edge of the sealing groove 10 enclosed by the second mounting groove 8 and the baffle 9 is rectangular, the shape of the sealing pad 14 is consistent with the shape of the edge of the sealing groove 10, the sealing groove 10 is tightly pressed on the sealing pad 14 through the first connecting structure 6 and the second connecting structure 12, the gap between the edge of the sealing plate groove and the sealing pad 14 is reduced, and the sealing effect of the sealing bin is improved.

In an embodiment, the first connecting structure 6 includes a first threaded hole 7, the second connecting structure 12 includes a second threaded hole 13, the first threaded hole 7 is matched with the second threaded hole 13, and the upper shell 1 and the lower shell 2 are connected together through penetrating screws. The first connecting structure 6 and the second connecting structure 12 are connected through screws, so that the disassembly and assembly are convenient.

In an embodiment, the first threaded holes 7 are provided in a plurality, the first threaded holes 7 are provided along the edge of the upper case 1, the second threaded holes 13 are consistent with the first threaded holes 7, and the second threaded holes 13 are provided along the edge of the lower case 2. The border around upper shell 1 sets up first screw hole 7, can improve the joint strength between upper shell 1 and the inferior valve 2, and then further improves the degree of sealing in sealed storehouse.

In an embodiment, the upper shell 1 is provided with a third connection structure 11, the third connection structure 11 is disposed in the middle of the upper shell 1, the PCB 16 is provided with a fourth connection structure 18, and the third connection structure 11 is matched with the fourth connection structure 18. Specifically, the third connecting structure 11 is disposed near the baffle 9, and the third connecting structure 11 and the fourth connecting structure 18 are cooperatively connected, so as to further improve the compression degree between the seal groove 10 and the seal gasket 14.

In one embodiment, the gasket 14 is formed by curing a foamed silicone. The foaming silica gel can deform, and the groove edge of the sealing groove 10 can be sunk into the sealing backing plate 14 in the connecting process of the upper shell 1 and the lower shell 2, so that the sealing effect is further improved.

In one embodiment, the sealing ring 3 is formed by curing foamed silica gel. Specifically, the plug window 4 can be arranged to be smaller, so that the plug of the corresponding device is extruded into the sealing bin, and the sealing effect between the sealing ring 3 and the plug is improved.

In an embodiment, the battery pack further comprises a monitoring module, the monitoring module comprises a sensor 15, the sensor 15 is connected with the PCB board 16, the sensor 15 is used for detecting the water amount in the sealing bin, and the monitoring module can cut off a circuit of the battery pack when water enters the sealing bin.

The battery pack of the embodiment of the utility model has the following working principle:

When the water storage battery pack is used, the plug of corresponding equipment is plugged with the plug terminal 20 through the plug window 4, the sealing ring 3 forms a first layer of waterproof structure, when the sealing ring 3 is invalid or in the plug plugging process, after moisture enters the sealing bin through the plug window 4, the sensor 15 of the monitoring module can transmit water quantity information to the monitoring module, and the monitoring module can actively cut off all circuits of the battery pack after receiving water inlet information, so that the short circuit is avoided.

According to the battery pack disclosed by the embodiment of the utility model, the sealing ring 3 can be filled in the gap between the plug of the corresponding device and the plug hole 5 to form a first layer of waterproof structure, so that external moisture or sundries are prevented from entering the sealing bin, the plug terminal 20 is plugged with the plug of the corresponding device in the sealing bin, the plug terminal 20 is isolated from other structures of the battery pack, a second layer of waterproof structure is formed, moisture in the sealing bin is prevented from entering other structures of the battery pack, and the waterproof effect and the safety of the battery pack are improved.

In other embodiments, the first connection structure 6 may also be an adhesive female tape and the second connection structure 12 may be an adhesive male tape.

In addition, an embodiment of the utility model also provides a battery input/output structure in the battery pack.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The battery input and output structure is characterized by comprising a shell, an inserting terminal (20) and a PCB (16), wherein the shell comprises an upper shell (1) and a lower shell (2) which are combined, the upper shell (1) is provided with a sealing groove (10), the lower shell (2) is provided with a first mounting groove (19), the PCB (16) is mounted in the first mounting groove (19), a sealing part is arranged on the side surface of the PCB (16) facing the upper shell (1), the inserting terminal (20) is mounted on the sealing part, a sealing base plate (14) is arranged on the sealing part, the sealing base plate (14) is arranged around the inserting terminal (20), the sealing base plate (14) is opposite to the sealing groove (10), and the sealing groove (10) and the sealing base plate (14) are combined to form a sealing bin;

The cell wall of seal groove (10) is equipped with spliced eye (5) and sealing washer (3), sealing washer (3) with the pore wall of spliced eye (5) links to each other, sealing washer (3) are equipped with grafting window (4), grafting window (4) just right spliced terminal (20).

2. The battery input and output structure according to claim 1, wherein the upper case (1) is provided with a second mounting groove (8), a baffle plate (9) is arranged in the second mounting groove (8), the baffle plate (9) and the groove wall of the second mounting groove (8) enclose the sealing groove (10), and the plug hole (5) is arranged on the groove wall of the second mounting groove (8).

3. The battery input-output structure according to claim 2, characterized in that the upper case (1) is provided with a first connecting structure (6), the lower case (2) is provided with a second connecting structure (12), and the first connecting structure (6) cooperates with the second connecting structure (12) to press the groove wall of the second mounting groove (8) and the baffle plate (9) against the sealing pad (14).

4. A battery input-output structure according to claim 3, characterized in that the first connection structure (6) comprises a first threaded hole (7), the second connection structure (12) comprises a second threaded hole (13), the first threaded hole (7) is matched with the second threaded hole (13), and the upper shell (1) and the lower shell (2) are connected together through penetrating screws.

5. The battery input-output structure according to claim 4, wherein the first screw holes (7) are provided in plural, the plural first screw holes (7) are provided along the edge of the upper case (1), the number of the second screw holes (13) is identical to the number of the first screw holes (7), and the plural second screw holes (13) are provided along the edge of the lower case (2).

6. The battery input and output structure according to claim 5, wherein a third connection structure (11) is provided on the upper case (1), the third connection structure (11) is provided in the middle of the upper case (1), a fourth connection structure (18) is provided on the PCB board (16), and the third connection structure (11) is matched with the fourth connection structure (18).

7. The battery input-output structure according to claim 6, wherein the sealing gasket (14) is cured and molded from foamed silicone.

8. The battery input-output structure according to any one of claims 1 to 7, wherein the seal ring (3) is cured and molded from foamed silicone.

9. The battery input-output structure according to any one of claims 1 to 7, further comprising a monitoring module, the monitoring module comprising a sensor (15), the sensor (15) being connected to the PCB board (16), the sensor (15) being configured to detect the amount of water in the sealed compartment, the monitoring module being configured to cut off the electrical circuit of the battery pack when water is fed into the sealed compartment.

10. A battery pack comprising an electric core (17) and the battery input-output structure according to any one of claims 1 to 9.