CN216078635U - Fixing structure for water inlet and outlet pipe of battery pack - Google Patents

Abstract

The utility model aims to provide a fixing structure of a water inlet and outlet pipe of a battery pack, which has small occupied space and good sealing effect and comprises a mounting plate, wherein a plurality of through holes for the water inlet and outlet pipe to pass through are arranged on the mounting plate, a sealing groove is formed in the periphery of the inner plate surface of the mounting plate, which is close to a battery pack box body, a sealing ring is arranged in the sealing groove, and a stud penetrates through the connecting hole formed in the mounting plate to fixedly connect the mounting plate and the battery pack box body. Among the above-mentioned scheme, all integrate a plurality of business turn over water pipes on a plurality of battery module in the battery package on the mounting panel, then set up a sealing washer on the week of this mounting panel and can realize business turn over fixed and sealed of water pipe, compare in the prior art business turn over water pipe on each battery module alone fixed, sealed form, occupation space is little.

Description

Fixing structure for water inlet and outlet pipe of battery pack

Technical Field

The utility model relates to the technical field of power batteries, in particular to a fixing structure for a water inlet pipe and a water outlet pipe of a battery pack.

Background

With the development of science and technology, the use of new energy automobiles has become an important measure for accelerating the conversion of traffic energy in all countries in the world. The new energy automobile is a vehicle which takes a battery pack as a power source and drives wheels by a motor, the battery pack is taken as a new power source, and the new energy automobile has the technical indexes of ultra-long service life, safe use, large endurance and the like. The lithium ion battery pack is very sensitive to temperature rise and temperature difference, so a water cooling system is required to be arranged to cool the battery pack, and the water cooling technology is a cooling technology based on liquid heat exchange and can effectively control the temperature of the battery system. In order to improve the cruising ability of the battery pack, more battery modules are expected to be placed in the battery pack box body as far as possible, each battery module is provided with a single water inlet pipe and a single water outlet pipe, and each group of water inlet and outlet pipes are fixed and sealed, so that the occupied space is large, and the temperature difference of a water cooling system is difficult to control. Protruding a plurality of business turn over water pipes that stretch to the battery package box outside simultaneously have outside tube head power armlength, intensity subalternation problem, and when business turn over water pipe outside tube head received external force and warp, can influence the sealed effect between face and the business turn over water pipe in the battery package box.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing structure of a water inlet pipe and a water outlet pipe of a battery pack, which occupies a small space and has a good sealing effect.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides a fixed knot of battery package business turn over water pipe constructs, includes the mounting panel, is provided with the through-hole that a plurality of confession business turn over water pipe passed on the mounting panel, and the mounting panel has seted up the seal groove along the border on closing on the interior face of battery package box, is provided with the sealing washer in the seal groove, and the double-screw bolt passes behind the connecting hole of seting up on the mounting panel with nut locking and with mounting panel and battery package box fixed connection.

Among the above-mentioned scheme, all integrate a plurality of business turn over water pipes on a plurality of battery module in the battery package on the mounting panel, then set up a sealing washer on the week of this mounting panel and can realize business turn over fixed and sealed of water pipe, compare in the prior art business turn over water pipe on each battery module alone fixed, sealed form, occupation space is little.

Drawings

FIG. 1 is a schematic view of the overall structure of a fixing structure;

fig. 2 is an exploded view of fig. 1.

Detailed Description

As shown in fig. 1 and 2, a fixing structure for a water inlet and outlet pipe of a battery pack comprises a mounting plate 10, wherein a plurality of through holes for the water inlet and outlet pipe a to pass through are formed in the mounting plate 10, a sealing groove 12 is formed in the inner plate surface, close to a battery pack box body 20, of the mounting plate 10 along the circumference, a sealing ring 13 is arranged in the sealing groove 12, and a stud 21 penetrates through a connecting hole 14 formed in the mounting plate 10 and then is locked by a nut 15 to fixedly connect the mounting plate 10 with the battery pack box body 20. A plurality of business turn over water pipe A on a plurality of battery module in the battery package all integrate on mounting panel 10, then set up a sealing washer 13 on the periphery of this mounting panel 10 and can realize business turn over water pipe A's fixed and sealed, compare in the prior art business turn over water pipe A on each battery module alone fixed, sealed form, occupation space is little, and the product point of failure is few.

In order to solve the problems that a plurality of water inlet and outlet pipes A protruding to the outside of the battery pack box body 20 have long external pipe head force arms and poor strength, a pipe head fixing part 30 is arranged on the outer plate surface of the battery pack box body 20, the pipe head fixing part 30 comprises an upper half body 31 and a lower half body 32, semicircular notches a corresponding to the water inlet and outlet pipes A one by one are formed in the upper half body 31 and the lower half body 32, the upper half body 31 and the lower half body 32 are buckled to clamp the water inlet and outlet pipes A in a constraint area formed by the two semicircular notches a, the plate surfaces at two ends of the upper half body 31 and the lower half body 32 are partially overlapped, a mounting hole b is formed in the overlapped part, and a bolt 33 penetrates through the mounting hole b on the upper half body 31 and the lower half body 32 and then is fixedly connected with a projection welding nut 14 arranged on the battery pack box body 20. During installation, the water inlet and outlet pipe A extends out of the through hole of the battery pack box body 20, then the upper half body 31 and the lower half body 32 are buckled to clamp the water inlet and outlet pipe A in a constraint area formed by the two semicircular gaps a, the upper half body 31 and the lower half body 32 are fixed on the battery pack box body 20 through bolts 33, due to the fixing effect of the pipe head fixing part 30, the pipe head is not easy to damage after being stressed, and the water inlet and outlet pipe A in the battery pack box body 20 does not deform.

In order to improve the bulk strength of battery package box 20, battery package box 20 including inside and outside two-layer panel beating, the panel edge welding of inside and outside panel beating 22, 23 is as an organic whole, the panel beating interval at middle part is arranged and is constituted the cavity, panel beating 22's interior face including the double-screw bolt 21 is fixed, projection nut welds on the interior face of panel beating 23 outward, unthreaded hole 231 has been seted up to the face of the outer panel beating 23 that corresponds with projection nut. A small section of water inlet and outlet pipe A is arranged between the inner metal plate 22 and the outer metal plate 23, so that the influence on the pipe body inside the box body when the pipe head outside the box body deforms is further reduced, and the sealing effect is ensured.

Furthermore, the plate thicknesses of the upper half body 31 and the lower half body 32 are equal, the upper half body 31 and the lower half body 32 are in a strip plate shape, the two ends of the strip plate are both provided with connecting lugs c, the connecting lugs c are also in a flat plate shape, the sum of the thicknesses of the connecting lugs c at the same end of the upper half body 31 and the lower half body 32 is equal to the thickness of the main body of the upper half body 31 and the main body of the lower half body 32, the outer surfaces of the assemblies after the upper half body 31 and the lower half body 32 are buckled are flush, the inner surfaces of the assemblies are flush, and the mounting holes b are formed in the connecting lugs c.

Claims (4)

1. The utility model provides a fixed knot of battery package business turn over water pipe constructs which characterized in that: the battery pack box body fixing device comprises a mounting plate (10), wherein through holes for a plurality of water supply inlet and outlet pipes (A) to pass through are formed in the mounting plate (10), a sealing groove (12) is formed in the inner plate surface, close to the battery pack box body (20), of the mounting plate (10) along the periphery, a sealing ring (13) is arranged in the sealing groove (12), and a stud (21) penetrates through a connecting hole (14) formed in the mounting plate (10) and then is locked by a nut (15) and fixedly connected with the mounting plate (10) and the battery pack box body (20).

2. The fixing structure of the water inlet and outlet pipe of the battery pack according to claim 1, characterized in that: the outer plate surface of the battery pack box body (20) is provided with a tube head fixing part (30), the tube head fixing part (30) comprises an upper half body (31) and a lower half body (32), semicircular notches (a) which correspond to the water inlet and outlet pipes (A) one by one are formed in the upper and lower half bodies (31, 32), the upper and lower half bodies (31, 32) are buckled to clamp the water inlet and outlet pipes (A) in a constraint area formed by the two semicircular notches (a), the plate surfaces at the two ends of the upper and lower half bodies (31, 32) are partially overlapped, a mounting hole (b) is formed in the overlapped part, and a bolt (33) penetrates through the mounting hole (b) in the upper and lower half bodies (31, 32) and then is fixedly connected with a projection welding nut (24) arranged on the battery pack box body (20).

3. The fixing structure of the water inlet and outlet pipe of the battery pack according to claim 1, characterized in that: battery package box (20) including inside and outside two-layer panel beating, the panel edge welding of inside and outside panel beating (22, 23) is as an organic whole, the panel beating interval at middle part is arranged and is constituted the cavity, panel beating (22) including stud (21) are fixed on the interior face of, projection nut welds on the interior face of outside panel beating (23), unthreaded hole (231) that confession bolt (33) passed through are seted up to the face of the outer panel beating (23) that corresponds with projection nut (24).

4. The fixing structure of the water inlet and outlet pipe of the battery pack according to claim 2, characterized in that: the upper half body (31) and the lower half body (32) are equal in plate thickness, the upper half body (31) and the lower half body (32) are in a strip plate shape, connecting lugs (c) are arranged at two ends of the strip plate and are also in a flat plate shape, the sum of the thicknesses of the connecting lugs (c) at the same ends of the upper half body (31) and the lower half body (32) is equal to the thickness of the main bodies of the upper half body and the lower half body (31) and the lower half body, and mounting holes (b) are formed in the connecting lugs (c).

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