Sealing structure of battery pack

Abstract

The utility model discloses a sealing structure of battery pack, sealing structure includes the sealing seat of cooperation in the inner chamber of connecting seat, sets up the first sealing ring between sealing seat and connecting seat and, fills the glue in the sealing seat of being equipped with electric plug piece. The design forms a complete sealing structure through sealing ring, sealing seat, glue filling and the reasonable layout between parts, avoids external factor and enters the battery pack inside through the mouth, the connecting gap, and plays good protection function to the battery, the circuit board etc. of battery pack inside electric component involved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure cleaning machine field, concretely relates to battery pack. BACKGROUND

[0002] Electric product needs to be matched with battery pack, and the battery pack is detachably connected with the electric product. When the electric product is used, the battery pack needs to be connected with the electric product to supply power to the electric product. When the battery pack is idle or needs to be charged, the battery pack is detached from the electric product.

[0003] The connecting seat is provided with an electric connection socket and a charging socket. The battery pack is internally provided with a battery and a circuit board and other electrical components, and the battery pack is required to have a tight sealing structure to avoid external factors from entering the battery pack through the electric connection socket, the charging socket or the joint between the upper and lower shells to affect the battery and the circuit board and other electrical components. UTILITY MODEL CONTENTS

[0004] The technical problem solved by the application is to provide a sealing structure to avoid external interference with the electrical components in the battery pack.

[0005] To solve the above technical problem, the application provides the following technical scheme: a sealing structure of a battery pack, the sealing structure comprising a sealing seat fitted in an inner cavity of a connecting seat, a first sealing ring arranged between the sealing seat and the connecting seat, and glue filled in the sealing seat provided with an electric connector.

[0006] The electric connector comprises an electric connector corresponding to the electric connection socket on the connecting seat and an electric connector corresponding to the charging socket on the connecting seat, and these electric connectors are located in the inner cavity of the sealing seat. By filling glue in the inner cavity of the sealing seat and arranging a sealing ring between the outer side wall of the sealing seat and the inner side wall of the connecting seat, external factors such as moisture and dust are prevented from entering the battery pack through the electric connection socket and the charging socket.

[0007] As an improvement, the connecting seat is provided with a sunken structure, the charging socket is located in the sunken structure, and a detachable elastic sealing member is fitted in the sunken structure, and the elastic sealing member can seal the charging socket. When charging is needed, the elastic sealing member is detached, and after charging is completed, the elastic sealing member is reset.

[0008] As an option, the shell of the battery pack is composed of an upper shell and a lower shell, and the sealing structure comprises a second sealing ring arranged between the upper shell and the lower shell.

[0009] As an improvement, the upper shell is provided with an inner ring, the lower shell is provided with an outer ring, and the second sealing ring is arranged between the inner ring and the outer ring. The inner ring is integrally injection molded with the upper shell, and the outer ring is integrally injection molded with the lower shell. The cooperation of the outer ring and the inner ring has a protective effect on the electrical components such as batteries and circuit boards within the range of the inner ring. In addition, the second sealing ring can effectively seal the space within the inner ring.

[0010] As an improvement, the connecting bolt of the upper shell and the lower shell is located at the periphery of the outer ring. In this way, the influence of external factors on the electrical components such as batteries and circuit boards inside the battery pack through the bolt hole can be effectively avoided.

[0011] The present application has the following technical effects: through the sealing ring, the sealing seat, the glue filling, and the reasonable layout of the parts, a complete sealing structure is formed, which can prevent external factors from entering the battery pack through the socket and the connecting gap, and can effectively protect the electrical components such as batteries and circuit boards inside the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0012] The present application will be further described below with reference to the accompanying drawings:

[0013] Figure 1 is a schematic view of a battery pack;

[0014] Figure 2 is Figure 1 an exploded view;

[0015] Figure 3 is Figure 2 a schematic view from another angle.

[0016] SYMBOL DESCRIPTION IN DRAWINGS:

[0017] 10, upper shell; 11, connecting seat; 12, sunken structure; 13, charging socket; 14, elastic sealing element; 15, inner ring; 16, connecting column;

[0018] 20, lower shell; 21, second sealing ring; 22, outer ring; 23, positioning hole;

[0019] 30, sealing seat; 31, first sealing ring;

[0020] 40, electrical connector. DETAILED DESCRIPTION

[0021] As shown in Figure 2 , the sealing structure of the battery pack includes a sealing seat 30 fitted in the inner cavity of the connecting seat 11, a first sealing ring 31 arranged between the sealing seat and the connecting seat, and glue filled in the sealing seat provided with an electrical connector 40.

[0022] The connecting seat 11 is provided with a recessed structure 12, a charging socket 13 is located in the recessed structure, and a detachable elastic sealing piece 14 is matched in the recessed structure, and the elastic sealing piece can seal the charging socket. When charging is needed, the elastic sealing piece 14 is removed; after charging is completed, the elastic sealing piece is reset.

[0023] As Figure 2 , the shell of the battery pack is composed of an upper shell 10 and a lower shell 20, and the sealing structure further comprises a second sealing ring 21 arranged between the upper shell and the lower shell.

[0024] In combination Figure 2 , Figure 3 , the upper shell 10 is provided with an inner ring 15, the lower shell 20 is provided with an outer ring 22, and the second sealing ring 21 is arranged between the inner ring and the outer ring.

[0025] The connecting bolt of the upper shell 10 and the lower shell 20 is located at the periphery of the outer ring 22. Specifically, the upper shell 10 is provided with a connecting column 16, and the lower shell 20 is provided with a positioning hole 23, wherein the connecting column is provided with a threaded hole. The connecting column 16 and the positioning hole 23 are matched to realize the preliminary assembly of the upper shell and the lower shell, and then the bolt is passed through the positioning hole 23 from bottom to top and connected with the threaded hole to realize the fixed connection of the upper shell and the lower shell.

[0026] The above is only a preferred embodiment of the present application, and for ordinary skilled in the art, according to the idea of the present application, the specific embodiment and application range will be changed, and the content of the specification should not be understood as the limitation of the present application.

Claims

1. A sealed structure for a battery pack, characterized in that: The sealing structure includes a sealing seat (30) fitted in the inner cavity of the connecting seat (11), a first sealing ring (31) disposed between the sealing seat and the connecting seat, and adhesive injected into the sealing seat provided with the electrical connector (40).

2. The sealing structure of the battery pack as described in claim 1, characterized in that: The connector (11) is provided with a recessed structure (12), and the charging port (13) is located in the recessed structure. A detachable elastic seal (14) is fitted in the recessed structure, and the elastic seal can seal the charging port.

3. The sealing structure of the battery pack as described in claim 1, characterized in that: The battery pack housing consists of an upper housing (10) and a lower housing (20), and the sealing structure includes a second sealing ring (21) disposed between the upper housing and the lower housing.

4. The sealing structure of the battery pack as described in claim 3, characterized in that: The upper housing (10) is provided with an inner ring (15), the lower housing (20) is provided with an outer ring (22), and the second sealing ring (21) is provided between the inner ring and the outer ring.

5. The sealing structure of the battery pack as described in claim 4, characterized in that: The connecting bolts of the upper shell (10) and the lower shell (20) are located on the periphery of the outer ring (22).

Images