Waterproof battery pack

Abstract

The utility model discloses a waterproof battery pack which comprises a shell, the shell is a hollow shell with two open ends, a battery pack is arranged in the shell, an upper end cover and a lower end cover are arranged at the upper end and the lower end of the shell respectively, and end cover sealing rings are arranged between the upper end cover and the upper end of the shell and between the lower end cover and the lower end of the shell respectively. A connector and two output terminals are arranged on the upper end cover, a mounting groove is formed in the upper end of the inner side of the shell along the inner circumference of the shell, a matched sealing ring is arranged in the mounting groove, a sealing ring groove is formed in the inner side of the sealing ring, a waterproof plate is clamped in the sealing ring groove, and a wire cavity is formed in the waterproof plate; the output terminal and the connector penetrate through the wire cavity through a metal wire to be connected with the battery pack, and the wire cavity is filled with waterproof sealant. According to the waterproof battery pack, the end cover sealing ring is arranged, meanwhile, the waterproof plate with the wire cavity is arranged in the shell, and the shell is filled with the sealant, so that sealing and waterproofing are enhanced, and water is prevented from entering the battery pack to cause short circuit.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of battery pack especially relates to a waterproof battery pack technical field. BACKGROUND

[0002] In the process of the rapid development of new energy batteries, new energy battery packs also develop rapidly, and the performance requirements of battery packs on the market are also higher and higher. With the expansion of application fields, new energy battery packs are more and more applied to outdoor and vehicle use scenarios, and higher requirements are put forward for the waterproofness, shock resistance and overall strength of the battery pack.

[0003] The waterproof performance of the existing battery pack is relatively weak, and can only prevent water splashing or rain, and water with large amount can flow into from the joint outside the battery pack. If the inflowing water cannot be blocked and isolated, the water enters the inside of the battery pack, which is easy to cause circuit short circuit, and further affect the internal electrical components, and there is a safety hazard. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model provides a waterproof battery pack with strong waterproof performance and good sealing effect.

[0005] To achieve the above purpose, the utility model provides the following scheme: a waterproof battery pack, including the shell, the shell is the hollow shell of two ends opening, be provided with battery group in the shell, the upper and lower two ends of the shell are equipped with upper end cover and lower end cover respectively, the upper end cover and lower end cover are equipped with end cover sealing ring between the upper and lower two ends of the shell respectively, the upper end cover is equipped with connector and two output terminals, the upper end of the shell inside along the shell inner circle is equipped with installation groove, the installation groove is equipped with the sealing ring in place, the inner side of the sealing ring is equipped with sealing ring groove, the waterproof board is clamped in the sealing ring groove, the waterproof board is equipped with wire cavity, the output terminal and connector are connected with battery group through the wire cavity of metal wire, the wire cavity is filled with waterproof sealant.

[0006] Further, the front wall of the upper end cover is provided with a first wiring slot, a second wiring slot and a third wiring slot, the two output terminals are arranged on the forward side walls in the first wiring slot and the second wiring slot respectively, and the connector is arranged on the forward side wall in the third wiring slot.

[0007] Further, the upper end cover is provided with a gas vent valve with a sealing ring at the forward position between the two output terminals.

[0008] Further, the output terminal and the connector are both provided with a sealing ring.

[0009] Further, the hollow shell is provided with a reinforcing rib outside.

[0010] Further, the battery group is provided with a shock pad outside.

[0011] Further, the shock-absorbing pad is a shock-absorbing sponge.

[0012] The utility model has the advantages of:

[0013] 1. The sealing ring is arranged between the shell and the end cover, the sealing and waterproof of the connection between the shell and the end cover are ensured, the sealing ring is arranged on the external connector and the output terminal of the upper end cover, water is prevented from flowing into from the connection of the external connector, the waterproof plate is arranged in the shell, the waterproof plate is clamped in the sealing ring on the shell, water in the shell is prevented from flowing into the battery pack from the connection between the waterproof plate and the shell, the wire cavity is arranged on the waterproof plate and filled with waterproof sealant, water is prevented from flowing into from the wire cavity, and the waterproof and sealing performance of the battery pack is further improved.

[0014] 2. The air vent with the sealing ring is arranged, the functions of waterproof, air permeability and heat dissipation are realized, the internal components are protected, the internal and external pressures of the battery pack are balanced, the stability of the parts is maintained, the shock-absorbing pad arranged around the battery pack improves the stability of the battery pack in the vibration environment, and the overall strength of the battery pack is increased by the reinforcing ribs arranged outside the shell. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the battery pack.

[0016] Figure 2 It is a structural schematic view of the waterproof plate.

[0017] The reference signs are as follows: the shell 1, the battery pack 2, the upper end cover 3, the lower end cover 4, the end cover sealing ring 5, the connector 6, the output terminal 7, the air vent 8, the first wiring slot 9, the second wiring slot 10, the third wiring slot 11, the shock-absorbing pad 12, the reinforcing rib 13, the mounting slot 14, the sealing ring 15, the sealing ring slot 16, the waterproof plate 17, the wire cavity 18, the waterproof sealant 19 and the metal wire 20. DETAILED DESCRIPTION

[0018] The utility model is further described with reference to the drawings.

[0019] Reference Figure 1 , Figure 2The utility model provides a waterproof battery pack, including two ends open hollow casing 1, the outside of casing 1 is provided with reinforcing rib 13, is provided with battery group 2 in casing 1, the outside of battery group 2 is provided with shock pad 12, the upper and lower both ends of casing 1 are equipped with upper end cap 3 and lower end cap 4 respectively, and the upper and lower both ends of casing 1 are equipped with end cap sealing ring 5 respectively, the front wall of upper end cap 3 is provided with first wiring slot 9, second wiring slot 10 and third wiring slot 11, and the side wall of first wiring slot 9 and second wiring slot 10 is provided with output terminal 7 with sealing ring respectively, the side wall of third wiring slot 11 is provided with connector 6 with sealing ring, the upper end cap 3 between two output terminals 7 is provided with air vent valve 8 with sealing ring to the front, the inside upper end of casing 1 is provided with mounting groove 14 along the inner circumference of casing 1, and the mounting groove 14 is provided with sealing ring 15 matched with mounting groove 14, the inside of sealing ring 15 is provided with sealing ring groove 16, and waterproof board 17 is clamped in sealing ring groove 16, and the waterproof board 17 is provided with wire cavity 18, and connector 6 and output terminal 7 are connected with battery group 2 through metal wire 20, and metal wire 20 passes through wire cavity 18, and wire cavity 18 is filled with waterproof sealant 20.

[0020] Specific implementation process: upper end cap 3 and lower end cap 4 are fixedly connected with casing 1 through end cap bolt, and end cap sealing ring 5 is clamped between upper end cap 3 and lower end cap 4 and casing 1, to ensure that casing 1 and the connecting place of end cap are sealed and waterproof, to avoid water from entering the inside of battery pack from the connecting place of end cap, the front wall of upper end cap 3 is provided with first wiring slot 9, second wiring slot 10 and third wiring slot 11, the side wall of first wiring slot 9 and second wiring slot 10 is provided with output terminal 7 respectively, and the side wall of third wiring slot 11 is provided with connector 6, to avoid water from splashing into connector 6 and output terminal 7 to some extent, and to save the installation space of external connecting piece, when part of water seeps from the connecting place of external connecting piece, a circle of mounting groove 14 is formed along the inner circumference of casing 1 on the upper end of casing 1, sealing ring 15 matched with mounting groove 14 is arranged in mounting groove 14, sealing ring groove 16 is formed along the inside of sealing ring 15, waterproof board 17 is clamped in sealing ring groove 16, to improve waterproof sealing property, to prevent water from seeping into the inside of battery pack from the connecting place of waterproof board 17 and casing 1, wire cavity 18 is formed on waterproof board 17, metal wire 20 passes through wire cavity 18 to electrically connect output terminal 7, connector 6 and battery group 2, and waterproof sealant 20 is filled in wire cavity 18, to prevent water from flowing into battery group 2 from wire cavity 18, to enhance waterproof performance.

[0021] In addition, a shock-absorbing pad 12 is arranged outside the battery pack 2, which is shock-absorbing sponge or the like, and can improve the stability of the battery pack in a vibrating environment; the design of the reinforcing ribs 13 on the outside of the shell 1 increases the overall strength of the battery pack; the connector 6 and the output terminal 7 are both provided with sealing rings, which further prevent water from flowing into the inside of the battery pack through the connector 6 hole and the output terminal 7 hole; the air vent valve 8 with a sealing ring is arranged on the forward position between the two output terminals 7 on the upper end cover 3, and has the functions of waterproofing, air permeability and heat dissipation, which not only can protect the internal components, but also can balance the internal and external pressures of the battery pack, maintain the stability of the components, improve the overall waterproof performance of the battery pack, and prolong the service life of the battery pack.

[0022] The preferred embodiments of the present application have been described above, but the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A waterproof battery pack, comprising a shell, the shell being a hollow shell with both ends open, a battery pack being arranged in the shell, an upper end cover and a lower end cover being respectively arranged at the upper and lower ends of the shell, an end cover sealing ring being respectively arranged between the upper and lower end covers and the upper and lower ends of the shell, and a connector and two output terminals being arranged on the upper end cover, characterized in that, The mounting groove is arranged on the upper end of the inner side of the shell along the inner periphery of the shell, and a matched sealing ring is arranged in the mounting groove.

2. The waterproof battery pack of claim 1, wherein, The first wiring groove, the second wiring groove and the third wiring groove are arranged on the front wall of the upper end cover, and the two output terminals are arranged on the forward side walls in the first wiring groove and the second wiring groove respectively, and the connector is arranged on the forward side wall in the third wiring groove.

3. The waterproof battery pack of claim 2, wherein, The air vent with the sealing ring is arranged on the forward position between the two output terminals of the upper end cover.

4. The waterproof battery pack according to claim 1 or 2, characterized in that, The output terminal and the connector are both provided with the sealing ring.

5. The waterproof battery pack of claim 1, wherein, The hollow shell is externally provided with the reinforcing rib.

6. The waterproof battery pack of claim 1, wherein, The battery pack is externally provided with the shock-absorbing pad.

7. The waterproof battery pack of claim 6, wherein, The shock-absorbing pad is the shock-absorbing sponge.

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