Liquid cooling battery case and box type battery
Technical field
This application involves field of batteries, and in particular to the cabinet electricity of a kind of liquid cooling battery case and this liquid cooling battery case of configuration
Pond.
Background technique
In the prior art, the battery case with liquid cooling structure is usually this structure type:One is buried inside tank wall
The water pipe of root or more bendings.In use, the entery and delivery port of aforementioned water pipe is connected with extraneous circulating water supply system, follow
Water at low temperature is sent to water pipe and is flowed in water pipe by ring water system, and absorbing tank wall along the water at low temperature of water pipe flowing, (tank wall absorbs
Cell heat in case) heat after heat up, the water after heating is back to aforementioned circulating water supply system from water pipe water outlet.
Embedded technique of the above-mentioned water pipe in tank wall is usually:The water pipe of stainless steel material is put into cabinet as inserts
In casting die, after the aluminum water of melting is poured such as mold and cooling, the battery case that water pipe is embedded in tank wall is just formd.
1, the battery case of above-mentioned this structure, because water pipe bending is embedded in tank wall, and the tank wall of aluminum was forming
Die casting can not be carried out to it in journey and improve its structural strength, so must do the thickness of tank wall is unusual big, at least need
Guarantee that tank wall has the thickness of 16mm or so, this makes battery case self weight very big, while also increasing the body of battery case outer profile
Type, this runs in the opposite direction with the design of box type battery light and smallization, and also increases the material cost of battery case.
2, the battery case of above-mentioned this structure, used water pipe is stainless steel tube, however the stainless steel tube coefficient of heat transfer
It is lower.
3, the battery case of above-mentioned this structure, which must be made thick, just can guarantee its intensity.
4, the heat exchanging water pipe in above-mentioned this structure battery case once break down, can not by water pipe remove repair or
Replacement, causes entire battery case integrally to be scrapped, can not secondary use.
Summary of the invention
The purpose of the application is:In view of the above technical problems, the application proposes a kind of new structural liquid cooling battery case, simultaneously
A kind of box type battery for configuring this battery case is also disclosed, this liquid cooling battery case has thinner tank wall thickness, Er Qie
Heat exchanging water pipe can easily replace when damaging.
The technical solution of the application is:
A kind of liquid cooling battery case, including:
Open cabinet, and
The heat exchanging water pipe of arrangement is contacted with the cabinet;
The surface of the cabinet is provided with the conduit being recessed inwardly, and the heat exchanging water pipe is embedded in the conduit.
The application further includes following preferred embodiment based on the above technical solution:
The outer surface of the cabinet is arranged in the conduit.
The cabinet includes cabinet bottom wall and encloses and be set to wall box above the cabinet bottom wall, the conduit
It is set to the outer surface of the cabinet bottom wall.
The protection board being closed in the heat exchanging water pipe in the conduit is fixedly installed in the outer surface of the cabinet bottom wall.
The heat exchanging water pipe is metal tube.
The heat exchanging water pipe is copper pipe, aluminum pipe or copper aluminum composite pipes, and the copper aluminum composite pipes are by the outer layer aluminium that is fixedly connected
Pipe and internal layer copper pipe are constituted.
The heat exchanging water pipe, which is extruded, to be embedded in the conduit, and the tube wall of the heat exchanging water pipe and the conduit
Channel wall squeezes contact.
The groove being recessed inwardly is formed in the channel sidewalls of the conduit, heat exchanging water pipe's tube wall is along the conduit
Width direction lateral extension deformation and protrude into the groove.
The conduit and the heat exchanging water pipe are multistage bending structure, and the heat exchanging water pipe is flat tube, and described are changed
The radial thickness of hot-water line and the thickness of the cabinet bottom wall are arranged in the same direction.
The surface of the cabinet is formed with several reinforcing ribs being criss-cross arranged, and the conduit is formed in the reinforcing rib
Between.
The heat exchanging water pipe is provided with two altogether, this two heat-exchanging water in-pipe flows from the middle part of the cabinet bottom wall to
Two sides guidance.
A kind of box type battery, liquid cooling battery case including above structure and the electricity being contained in the liquid cooling battery case
Pond.
The advantages of the application is:
1, conduit is set in tank surface, heat exchanging water pipe is embedded in conduit, heat exchanging water pipe and cabinet are greatly facilitated
Assembly, and when heat exchanging water pipe damage when, water pipe can be milled directly to the water pipe for removing and more renewing from conduit, it is very convenient.
Convex portion between tank surface conduit has structural strengthening effect, after heat exchanging water pipe is embedded in conduit, applies to channel sidewalls
Added with lateral support, to ensure that the structural strength of cabinet, the thickness of cabinet is advantageously reduced.
2, heat exchanging water pipe has good thermal conductivity, outer layer aluminum pipe using the copper aluminum composite pipes of the double-layer structure of aluminium copper-clad
There is better associativity with aluminium cabinet, and memory is managed after being used for a long time by can avoid with good resistance to corrosion
Corrosion of the interior water flow to tube wall.
3, conduit and heat exchanging water pipe are multistage bending structure, and the long enough that can be heat exchanging water pipe covers it as far as possible
Cover entire tank wall face.Heat exchanging water pipe is flat tube configuration, and the thickness cloth in the same direction of the radial thickness of heat exchanging water pipe and cabinet bottom wall
It sets, is conducive to do the thickness of cabinet bottom wall thinner, while the water-flowing amount for being also unlikely to heat exchanging water pipe is very few, and guarantees to change
Hot-water line 3 and cabinet have sufficiently large contact area.
4, the outer surface of cabinet is formed with the numerous reinforcing ribs being criss-cross arranged, and conduit is formed between reinforcing rib ---
Gap of the conduit between reinforcing rib.Reinforcing rib improves the structural strength of cabinet, tank thickness can be made thin, is embedded in and adds
Heat exchanging water pipe between strengthening tendons will not only occupy cabinet wall thickness, but also provide lateral support for reinforcing rib, further be promoted
Body structure intensity.
5, heat-exchanging water in-pipe flow is guided from the middle part of cabinet bottom wall to two sides, is conducive to middle part high-temperature battery in case
Fast cooling, the homogeneity of battery temperature in guard box.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required use in embodiment description
Attached drawing be briefly described, the drawings in the following description are only some examples of the present application, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of battery case in the embodiment of the present application;
Fig. 2 is the present invention looks up structural representation of battery case in the embodiment of the present application;
Fig. 3 is the A-A of Fig. 2 to sectional view;
Fig. 4 is the portion the B enlarged drawing of Fig. 3;
Fig. 5 is the portion the C enlarged drawing of Fig. 1;
For convenience of the technical solution for understanding the application, Fig. 1, Fig. 2 and Fig. 5 do not draw the incomplete structure of protection board.
Wherein:1- cabinet, 101- conduit, 102- reinforcing rib, 2- case lid, 3- heat exchanging water pipe, 4- protection board.
Specific embodiment
Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The application and be not limited to limitation scope of the present application.Implementation condition used in the examples can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Fig. 1 to Fig. 4 shows a specific embodiment of this liquid cooling battery case of the application, with traditional liquid cooling battery case phase
With also including open cabinet 1, the case lid 2 for closing the opening of the cabinet, with cabinet 1 contact arrangement
Heat exchanging water pipe 3.When practical application, battery is arranged in the battery case, the cooling water of circulation is passed through into heat exchanging water pipe 3, it is cooling
Water absorbs the heat of battery in cabinet 1 and case during flowing and battery is made to cool down, then flows out from water pipe water outlet.
The key improvements of the present embodiment are that above-mentioned heat exchanging water pipe 3 and cabinet 1 use completely new fit structure, specifically
For:The surface of cabinet 1 is provided with the conduit 101 being recessed inwardly, and heat exchanging water pipe 3 is embedded in conduit 101.
Conduit 101 is set in tank surface, heat exchanging water pipe 3 is embedded in conduit 101, heat exchanging water pipe 3 is greatly facilitated
With the assembly of cabinet 1, and when heat exchanging water pipe 3 damage when, water pipe can be milled directly to the water pipe for removing and more renewing from conduit, it is non-
It is often convenient.In addition, the convex portion between tank surface conduit 101 has structural strengthening effect, heat exchanging water pipe is embedded in conduit
After 101, lateral support is applied with to channel sidewalls, to ensure that the structural strength of cabinet, advantageously reduces the thickness of cabinet
Degree.
The inner surface in cabinet 1 had both can be set in above-mentioned conduit 101, also can be set in the outer surface of cabinet 1.And in order to
The interference of battery and heat exchanging water pipe 3 in conduit and conduit in case is avoided as far as possible, and conduit 101 is arranged in cabinet the present embodiment
1 outer surface.
Because the box type battery for configuring this liquid cooling battery case is used usually as automobile power cell, outer surface is most
It is exposed in an atmosphere.When in use, battery case outer surface can contact various sundries, be easy to be corroded, and have and fire by stone
The possibility of raw structural failure.In this regard, the present embodiment has a block protection plate outside the enclosure surface also fixed (welding or screw are fixed)
4, which is enclosed in the heat exchanging water pipe 3 in conduit in conduit, have prevent cabinet overlook, avoid cabinet directly by
The effect that stone is hit.
In the present embodiment, above-mentioned cabinet 1 is rectangular box comprising cabinet bottom wall and enclosing are set to the cabinet bottom wall
Four pieces of wall box of top, and above-mentioned conduit 101 is specifically set in the outer surface of cabinet bottom wall, protection board 4 is also disposed at
At cabinet bottom wall.
In order to guarantee that heat exchanging water pipe 3 can be with conduit snap fit, to reduce due to vibration after being embedded in cabinet conduit
A possibility that causing heat exchanging water pipe to be detached from from conduit, while guaranteeing the heat transfer efficiency of heat exchanging water pipe, the heat-exchanging water in the present embodiment
Pipe 3 uses the higher metal material of thermal coefficient, can use aluminum pipe or copper pipe, can also be using the outer layer by being fixedly connected
The copper aluminum composite pipes that aluminum pipe and internal layer copper pipe are constituted.Cabinet 1 is aluminium.If heat exchanging water pipe 3 uses aluminium pipe structure, with aluminium
Cabinet 1 has better associativity;According to copper pipe structure, with good resistance to corrosion, can avoid after being used for a long time
In-pipe flow promotes the service life of heat exchanging water pipe 3 to the corrosivity of tube wall;According to copper aluminum composite pipes structure above-mentioned, then
The associativity of water pipe and cabinet and the corrosion resistance of water pipe can be taken into account.
When assembly, the heat exchanging water pipe 3 of metal material is extruded under pressure to be embedded in conduit 101, and is exchanged heat
The tube wall of water pipe 3 is contacted with the extruding of the channel wall of conduit 101.When necessary, adhesive can be filled in conduit 101, with further
Promote the bonding strength of heat exchanging water pipe and cabinet.
In addition, in order to further promote the bonding strength of heat exchanging water pipe and cabinet, slot of the present embodiment in conduit 101
It is formed with the groove (being not drawn into figure) being recessed inwardly on road side wall, heat exchanging water pipe 3 is squeezed masterpiece when being press-fitted to conduit
With, and the tube wall of heat exchanging water pipe is deformed along the width direction lateral extension of conduit 101 and is protruded into groove.
It referring again to shown in Fig. 1 and Fig. 2, in the present embodiment, above-mentioned conduit 101 and heat exchanging water pipe 3 are multistage bending structure,
And heat exchanging water pipe 3 is flat tube, and the radial thickness of heat exchanging water pipe 3 and the thickness of cabinet bottom wall are arranged in the same direction.It is so-called " radial
Thickness " has this meaning:The cross section approximate ellipse of flat tube or the ring structure of rectangle, the long axis of the ring structure are referred to as
Short axle for radical length, the ring structure is referred to as radial thickness.Obviously, heat exchanging water pipe 3, be along its radial direction in bending
Length direction carries out bending, because only that can guarantee that the thickness of the radial thickness and cabinet bottom wall of heat exchanging water pipe 3 is same in this way
To arrangement.
It can be appreciated that the radial thickness of heat exchanging water pipe 3 and the thickness of cabinet bottom wall are arranged in the same direction, be conducive to cabinet bottom wall
Thickness do thinner, while the water-flowing amount for being also unlikely to heat exchanging water pipe 3 is very few, and guarantees that heat exchanging water pipe 3 and cabinet have
Sufficiently large contact area.
It refers again to shown in Fig. 1, above-mentioned conduit 101 is to be formed in 1 surface of cabinet in this form in the present embodiment:Cabinet
1 outer surface is formed with the numerous reinforcing ribs 102 being criss-cross arranged, and part reinforcing rib 102 is arranged close to, to lean at these
Above-mentioned conduit 101 is formd between the reinforcing rib closely arranged --- gap of the conduit 101 between reinforcing rib.Reinforcing rib 102
The structural strength of cabinet is improved, tank thickness can be made thin --- only need 12mm.
Above-mentioned reinforcing rib 102 and cabinet 1 are structure as a whole, and the two can be integrally cast, and can also work as flat
After cabinet bottom wall completes, then reinforcing rib 102 is formed to the outer surface groove milling of cabinet bottom wall.
In the present embodiment, above-mentioned heat exchanging water pipe 3 is provided with two altogether, and water flow is by cabinet bottom in this two heat exchanging water pipes 3
The middle part of wall is guided to two sides, that is to say, that when cooling water flows in heat exchanging water pipe 3, first passes through the middle region of cabinet bottom wall
Then domain is flowed to the side of cabinet bottom wall.This is because in case the temperature highest and two side areas of battery intermediate region temperature
Spend relatively low, by inlet segment setting at middle part, intermediate low temperature water flow and battery case wall temperature difference are larger so can more rapidly
Absorption intermediate cell heat, make intermediate cell fast cooling.Although the water flow of two sides is because absorbing certain heat due to temperature
Relatively high, heat absorption capacity dies down, but the battery temperature of two sides is relatively low, so influence less, to ensure that case on the whole
The consistency of interior battery temperature.
The inlet and outlet of above-mentioned two heat exchanging water pipes 3 are arranged in the middle part side of cabinet bottom wall.It is so convenient
The connection of outer loop water system and 3 intake-outlet of heat exchanging water pipe.
This battery case of the present embodiment first produces the conduit 101 of multistage bending in 1 outer surface of cabinet in production ---
By the way that in tank surface molding, reinforcing rib is realized in length and breadth;Then it will be originally used for making multistage bending after circular heat exchanging water pipe 3 flattens
Processing;The heat exchanging water pipe 3 after bending is press-fitted to conduit 101a again.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen
Content please is simultaneously implemented accordingly, and the protection scope of the application can not be limited with this.It is all according to the application main technical schemes
The equivalent transformation or modification that Spirit Essence is done should all be covered within the scope of protection of this application.