CN206516736U - A kind of hydroecium for battery modules - Google Patents

Abstract

The utility model discloses a kind of hydroecium for battery modules, the Corrosion Protection of hydroecium can be improved at lower cost, while the temperature control efficiency of hydroecium can also be improved.The hydroecium includes：Body is molded, the injection body has temperature control sap cavity and water nozzle；Wherein, the temperature control sap cavity has the first opening and the second opening, first opening is located at the injection side of the body towards battery modules, and second opening is located at the opposite side of the injection body dorsad battery modules, and the water nozzle is connected with the temperature control sap cavity；Metallic plate, the metallic plate is installed in the injection body towards the side of battery modules and closes first opening, and, the metal plate is formed with oxide-film to the surface of the described first opening；Plasticity cover plate, the plasticity cover plate is installed in the injection body away from the opposite side of battery modules and closes second opening.

Description

A kind of hydroecium for battery modules

Technical field

The utility model is related to the temperature control technology of battery modules, more particularly to a kind of hydroecium for battery modules.

Background technology

Existing electric car uses battery modules as power source, and implements temperature control to battery modules using hydroecium.

As shown in figure 1, hydroecium generally includes metal-back 51 and metal water nozzle 52, metal-back 51 has temperature control sap cavity, metal Water nozzle 52 is connected with the temperature control sap cavity.

Wherein, metal-back 51 and metal water nozzle 52 are mostly made and this using the metal material such as aluminum or aluminum alloy Both are by being weldingly connected, i.e. hydroecium is made up of metal material on the whole.Temperature control fluid is generally from the mixed of temperature control ethylene glycol and water Liquid temperature draining is closed, such mixed liquor is easily changed into acid after a long time use, thus needed in regular maintenance periodically more Change, otherwise temperature control, the temperature control fluid for being changed into acid can cause the hydroecium of metal material to be corroded.Especially, metal-back 51 and metal Welding region between water nozzle 52 is easier to be changed to the temperature control corrosion of acidity, so as to cause temperature control fluid leakage occur, makes electricity Pond case interior insulation resistance reduction, and then situation about leaking electricity.

If wishing to avoid above-mentioned situation from occurring, a kind of optional solution is the metal-back 51 to the hydroecium of metal material Surfaces externally and internally does anodized, and such processing needs higher cost, and anodized can not be applied Welding region between metal-back 51 and metal water nozzle 52, i.e. the welding region between metal-back 51 and metal water nozzle 52 is anti- Corrode blind spot.Therefore, the solution can improve the manufacturing cost of hydroecium and can not implement comprehensive to the hydroecium of metal material Anticorrosion.In addition, the thermal conductivity factor of metal shell 51 is big, thus its heat-insulating property is not good, causes the temperature control fluid wherein accommodated Easily occur heat exchange with external environment condition, cause temperature control inefficient.

It can be seen that, existing hydroecium has metal welding region using metal material on the whole can not implement etch-proof lack Fall into, while also there is the problem of temperature control is inefficient.

Utility model content

In order to solve the above technical problems, the utility model provides a kind of hydroecium for battery modules, can be with relatively low Cost improves the Corrosion Protection of hydroecium, while the temperature control efficiency of hydroecium can also be improved.

A kind of hydroecium for battery modules that one embodiment of the present utility model is provided includes：

Body is molded, the injection body has temperature control sap cavity and water nozzle；Wherein, the temperature control sap cavity has the first opening With the second opening, first opening is located at the side of the injection body towards battery modules, and second opening is located at institute The opposite side of injection body dorsad battery modules is stated, and the water nozzle is connected with the temperature control sap cavity；

Metallic plate, the metallic plate is installed in the injection body towards the side of battery modules and closes described first and open Mouthful, and, the metal plate is formed with oxide-film to the surface of the described first opening；With

Plasticity cover plate, the plasticity cover plate is installed in the injection body away from the opposite side of battery modules and closes described Second opening.

Alternatively, the injection body includes frame, and the frame has first around the temperature control sap cavity, the frame Inner edge, and the water nozzle takes shape in first inner edge.

Alternatively, the edge of the metallic plate is embedded in the frame.

Alternatively, the frame offers groove, the metallic plate in the injection body towards the side of battery modules With flange, and the flange is embedded in the groove.

Alternatively, the flange is tilted to the edge outside of the plate body of the metallic plate, the groove and the flange Tilt in the same direction

Alternatively, the injection body further has boss, and the boss is in the body that is molded towards battery modules Side connect the frame, and the boss is in the periphery for wrapping around the metallic plate of the groove.

Alternatively, side split of the boss with the metallic plate in injection body towards the battery modules forms flat Smooth surface.

Alternatively, the plasticity cover plate is fixed on the frame, or plasticity cover plate bonding by ultrasonic bonding In the frame.

Alternatively, the plasticity cover plate has reinforcement.

Alternatively, the frame, which has, further has the second inner edge, and second inner edge is located at and first inner edge Opposite side, also, the injection body further has cut-off, and the cut-off is positioned at the temperature control fluid intracavitary and is connected to institute State between the first inner edge and second inner edge.

From above technical scheme, based on the utility model, hydroecium by plastic material injection body and plasticity cover plate It is assembled with the metallic plate of metal material.

On the one hand, water nozzle and injection body integrated injection molding, thus hydroecium is blind in the absence of anticorrosion is formed at water nozzle The metal welding region of point, and then avoid causing due to weld failure present in metal welding region of the prior art Temperature control fluid seepage the problems such as；Also, only have metallic plate to employ metal material in hydroecium, due to the injection body of plastic material There is preferable anti-corrosion property with plasticity cover plate, thus metal plate forms oxidation to the surface of the first opening of temperature control sap cavity Film is enough to resist the temperature control corrosion for being changed into acid, and need not implement overall anodized to hydroecium.So as to by subtracting Lack the processing area of anodized to reduce anticorrosion cost, can implement at a relatively low cost to the comprehensive of hydroecium Anticorrosion.

On the other hand, the injection body and plasticity cover plate of plastic material have preferable heat-insulating property, it is thus possible to reduce Heat exchange between the temperature control fluid and external environment condition of temperature control fluid intracavitary, to reduce the thermal loss of temperature control fluid；At the same time, water Room still uses the big metallic plate of thermal conductivity factor towards the side of battery modules, to ensure that the heat between hydroecium and battery modules is handed over Changing to be obstructed.So as to by the basis of ensureing that heat exchange is smoothly between hydroecium and battery modules, in hydroecium Temperature control fluid implements insulation, can improve the temperature control efficiency of hydroecium.

Brief description of the drawings

The following drawings only does schematic illustration and explanation to the utility model, does not limit scope of the present utility model.

Fig. 1 is the structural representation of hydroecium of the prior art；

Fig. 2 be one embodiment of the present utility model in hydroecium structural representation；

Fig. 3 be Fig. 2 in A-A faces sectional view；

Fig. 4 illustrates for the decomposition texture of hydroecium as shown in Figure 2；

Fig. 5 be decomposition texture as shown in Figure 4 with the sectional view figure in Fig. 2 on the equidirectional of A-A faces；

Fig. 6 is that the injection body that shows is blocked the structural representation of side in the figure in Fig. 4；

Fig. 7 is that the metallic plate that shows is blocked the structural representation of side in the figure in Fig. 5

Fig. 8 is that the hydroecium in one alternate embodiment of the utility model is being molded body and the partial cutaway of metallic plate junction View.

Fig. 9 is the structural representation of the plastic plate in the utility model another alternate embodiment.

Label declaration

1 hydroecium

10 injection bodies

11 frames

111 first inner edges

112 second inner edges

12 water nozzles

13 cut-offs

14 grooves

15 boss

20 metallic plates

21 plate bodies

22 flange

30 plasticity cover plates

31 reinforcements

40 temperature control sap cavities

41 first openings

42 second openings

51 metal-backs

52 metal water nozzles

Embodiment

In order to be more clearly understood to the technical characteristic of utility model, purpose and effect, now control illustrates this The embodiment of utility model, in the various figures identical label represent identical part.

Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.

To make only schematically show and the utility model relevant portion, and not generation in simplified form, each figure Table its as product practical structures.In addition, so that simplified form is readily appreciated, there is identical structure or function in some figures Part, only symbolically depict one of those, or only marked one of those.

Herein, " on ", " under ", "front", "rear", "left", "right" etc. are only used for representing relative between relevant portion Position relationship, and the absolute position of these non-limiting relevant portions.

Herein, " first ", " second " etc. are only used for mutual differentiation, rather than represent significance level and order and Premise existed each other etc..

Herein, the limitation on the mathematics and/or geometry meaning of " equal ", " identical " etc. and non-critical, is also included It will be appreciated by those skilled in the art that and manufacture or the error for the permission such as using.Unless otherwise indicated, numerical value model herein Enclosing not only includes the gamut in two end points, also including being contained in some subranges therein.

Referring first to Fig. 2 to Fig. 5, in one embodiment of the present utility model, the hydroecium 1 for battery modules includes： Integrally formed with the injection body 10 of water nozzle 12, and, metallic plate 20 (aluminium sheet that preferred weight is light, thermal conductivity factor is big) and plasticity Cover plate 30.

Please in conjunction with Fig. 6 while referring to Fig. 2 to Fig. 5, injection body 10 has temperature control sap cavity 40 and water nozzle 12.Its In, as shown in figure 5, temperature control sap cavity 40 has the first opening 41 and the second opening 42, the second opening is located at injection body 10 dorsad The opposite side of battery modules, and water nozzle 12 connects with temperature control sap cavity 40.

Specifically, referring more particularly to Fig. 6, injection body 10 includes frame 11, is to form by the circular space of frame 11 It is molded the temperature control sap cavity 40 of body 10.

Also, it can also be seen that frame 11 has the first inner edge respectively in the mutually anti-phase side of its length direction from Fig. 6 111 and second inner edge 112；Water nozzle 12 can take shape in the first inner edge 111；Also, the first inner edge 111 and the second inner edge 112 it Between form hollow out, a plurality of cut-off 13 is connected to the vacancy section between the first inner edge 111 and the second inner edge 112 in temperature control sap cavity 40 At domain, so that, a plurality of cut-off 13 forms a plurality of interconnected temperature control fluid flow channel in temperature control sap cavity 40, in order to temperature control Liquid has certain rule and guidance quality, rather than out of order flowing in the flowing of temperature control sap cavity 40.

Moreover, the temperature control fluid flow channel formed between a plurality of cut-off 13 passes through in the first inner edge 111 and the second inner edge Open space at 112 realizes UNICOM to each other, and temperature control fluid flow channel can pass through the opening at the first inner edge 111 Realize connection of the temperature control fluid in temperature control sap cavity 40 and water nozzle 12 in space.

Because injection body 10 can be processed by Shooting Technique, thus it can easily process and obtain with upper State the injection body 10 of structure.But it is understood that, the present embodiment is concerned with water nozzle 12 and is shaped in injection body 10, As for the structure such as the first inner edge 111, the second inner edge 112 and cut-off 13, it is not essential however to.

Please in conjunction with Fig. 6 while referring to Fig. 2 to Fig. 5, metallic plate 20 is installed in from body 10 is molded towards battery mould The side of group, also, refers to Fig. 5 and reviews Fig. 3, and metallic plate 20 is in injection body 10 towards one side closed the of battery modules One opening 41.

It is, being installed in from injection side metallic plate 20 of the body 10 towards battery modules, the first opening can be passed through 41 realize the heat exchange between the temperature control fluid in battery modules and temperature control sap cavity 40.Correspondingly, metallic plate 20 can pass through first Opening 41 is physically contacted with the temperature control fluid in temperature control sap cavity 40, therefore, in order that metallic plate 20 has to being changed into acidity The corrosion resistance of temperature control fluid, metallic plate 20 can be formed with oxidation towards the surface of the first opening 41 by anodized Film.Also, metallic plate 20 can be by being installed in from injection body 10 one towards battery modules with being fixedly connected for frame 11 Side, for example, the edge of metallic plate 20 is embedded in frame 11.Specific to refer to Fig. 5, frame 11 is being molded body 10 towards battery The side of module offers groove 14, and referring again to Fig. 3, Fig. 5 and Fig. 7, metallic plate 20 is except with plate shaped plate body Outside 21, also with the flange 22 formed in the edge of plate body 21.So as to, refer to Fig. 5 and review Fig. 3, metallic plate 20 Flange 22 be embedded in groove 14.

In actual processing hydroecium 1, the flange 22 of metallic plate 20 can be embedded in the injection injection molding process of body 10 To the groove 14 of injection body 10.

The flange 22 and plate body 21 that can be seen that metallic plate 20 from Fig. 3 and Fig. 5 are perpendicular or generally perpendicular, correspondingly, ditch The depth direction of groove 14 is also perpendicular or generally perpendicular with plate body 21.But as a kind of improvement of optimization, refer to Fig. 8, metal The flange 22 of plate 20 can also be to tilting on the outside of the edge of plate body 21, and the depth direction of groove 14 be also in this way, now, if still The flange 22 of metallic plate 20 is set to be embedded in the injection injection molding process of body 10 in the groove 14 of injection body 10, then Flange 22 more firmly can be limited in groove 14 by above-mentioned inclination, so that metallic plate 20 is more difficult to take off with injection body 10 From.

Referring again to Fig. 3 and Fig. 5 and Fig. 4 is combined, in order to protect the metallic plate 20 chimeric with frame 11, be molded body 10 Can further have boss 15, boss 15 connects frame 11, and boss in injection body 10 towards the side of battery modules 15 in the periphery for wrapping around metallic plate 20 of groove 14.That is, boss 15 is in injection side shape of the body 10 towards battery modules Into a protection chamber, and metallic plate 20 can be filled in the protection intracavitary.Certainly, it is contemplated that hydroecium 1 is towards battery modules The planarization of side, the side split that boss 15 can be with metallic plate 20 in injection body 10 towards battery modules forms flat table Face.

Referring also to Fig. 2 to Fig. 5, plasticity cover plate 30 is installed in the opposite side of injection body 10 dorsad battery modules, and moulds Property cover plate 30 injection body 10 dorsad battery modules opposite side closing second opening 42.Also, plasticity cover plate 30 can also By with being fixedly connected for frame 11 and be installed in the opposite sides of injection body 10 dorsad battery modules.

For example, be all that the plasticity cover plate 30 of plastic material can be fixedly connected by ultrasonic bonding with frame 11, wherein, Ultrasonic bonding is the ripe welding technique for supporting plastic material to be welded to each other, and here is omitted.For another example plasticity cover plate 30 Frame 11 can be adhered to by glue mediums such as fluid sealants.

In addition, plasticity cover plate 30 is located at the opposite side of injection body 10 dorsad battery modules, its will not as metallic plate 20 that Sample contacts the thermal conductive surface of battery modules as hydroecium 1, but as just making the closed cover-up surface of temperature control sap cavity 40, and it is such Therefore cover-up surface, in order to strengthen the ability that hydroecium 1 resists external impact, may be referred to Fig. 9, plasticity by external impact Cover plate 30 can have reinforcement 31.

When the height of cut-off 13 for being shown in Fig. 3 and Fig. 5 is equal to the depth of temperature control sap cavity 40, reinforcement 31 can With positioned at plasticity cover plate 30 dorsad second opening 42 surface.If but the height of cut-off 13 is less than the depth, simultaneously of temperature control sap cavity 40 And be retracted within the second opening 42, then reinforcement 31 can be located at plasticity cover plate 30 towards the surface of the second opening 42.That is, strengthen Whether the space that the surface where muscle 31 is depended in temperature control sap cavity 40 is enough to accommodate reinforcement 31.

Based on the above embodiments, hydroecium 1 is molded body 10 and plasticity cover plate 30 and metal material by plastic material Metallic plate 20 is assembled.

On the one hand, water nozzle 12 is not present at water nozzle 12 with the injection integrated injection molding of body 10, thus hydroecium 1 and forms anti- Corrode blind spot metal welding region, and then avoid present in metal welding region of the prior art due to weld failure Caused by temperature control fluid seepage the problems such as；

Also, only have metallic plate 20 to employ metal material in hydroecium 1, due to the injection body 10 and plasticity of plastic material Cover plate 30 has preferable anti-corrosion property, thus metallic plate 20 forms oxygen towards the surface of the first opening 41 of temperature control sap cavity 40 Change film to be just enough to resist the temperature control corrosion for being changed into acid, and overall anodized need not be implemented to hydroecium, i.e. pass through The processing area of anodized is reduced to reduce anticorrosion cost；

So as to which the above embodiments can implement the comprehensive anticorrosion to hydroecium 1 at a relatively low cost.

On the other hand, the injection body 10 and plasticity cover plate 30 of plastic material have preferable heat-insulating property, it is thus possible to The heat exchange between the temperature control fluid and external environment condition in temperature control sap cavity 40 is reduced, to reduce the thermal loss of temperature control fluid；

At the same time, hydroecium 1 still uses the big metallic plate 20 of thermal conductivity factor towards the side of battery modules, to ensure hydroecium Heat exchange between 1 and battery modules will not be obstructed.

So as to by the basis of ensureing that heat exchange is smoothly between hydroecium 1 and battery modules, to the temperature in hydroecium 1 Draining implements insulation, can improve the temperature control efficiency of hydroecium.

It should be understood that, although this specification is described according to each embodiment, but not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should Using specification as an entirety, the technical scheme in each embodiment may also be suitably combined to form people in the art The understandable other embodiment of member.

The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above Body illustrates, and and be not used to limit protection domain of the present utility model, it is all without departing from the utility model skill spirit made etc. Embodiment or change are imitated, combination, segmentation or the repetition of such as feature should be included within protection domain of the present utility model.

Claims (10)

1. a kind of hydroecium (1) for battery modules, it is characterised in that including：

Body (10) is molded, the injection body (10) has temperature control sap cavity (40) and water nozzle (12)；Wherein, the temperature control sap cavity (40) there is the first opening (41) and the second opening (42), first opening (41) is located at the injection body (10) towards electricity The side of pond module, second opening (42) is located at the opposite side of injection body (10) the dorsad battery modules, and institute Water nozzle (12) is stated to connect with the temperature control sap cavity (40)；

Metallic plate (20), the metallic plate (20) is installed in the injection body (10) towards the side of battery modules and closes institute The first opening (41) is stated, and, the metallic plate (20) is formed with oxide-film towards the surface of the described first opening (41)；With

Plasticity cover plate (30), the plasticity cover plate (30) is installed in the injection body (10) and deviates from the opposite side of battery modules simultaneously Close second opening (42).

2. hydroecium (1) as claimed in claim 1, it is characterised in that the injection body (10) includes frame (11), the side Frame (11) has the first inner edge (111) around the temperature control sap cavity (40), the frame (11), and the water nozzle (12) is molded In first inner edge (111).

3. hydroecium (1) as claimed in claim 2, it is characterised in that the edge of the metallic plate (20) is embedded in the frame (11) in.

4. hydroecium (1) as claimed in claim 3, it is characterised in that the frame (11) is in described injection body (10) direction The side of battery modules offers groove (14), and the metallic plate (20) has flange (22), and the flange (22) is embedded In the groove (14).

5. hydroecium (1) as claimed in claim 4, it is characterised in that plate sheet from the flange (22) to the metallic plate (20) Tilted on the outside of the edge of body (21), the groove (14) tilts in the same direction with the flange (22).

6. hydroecium (1) as claimed in claim 4, it is characterised in that the injection body (10) further has boss (15), The boss (15) connects the frame (11), and the boss in the injection body (10) towards the side of battery modules (15) in the periphery for wrapping around the metallic plate (20) of the groove (14).

7. hydroecium (1) as claimed in claim 6, it is characterised in that the boss (15) is with the metallic plate (20) described The side split for being molded body (10) towards battery modules forms flat surfaces.

8. the hydroecium (1) as any one of claim 2 to 7, it is characterised in that the plasticity cover plate (30) passes through ultrasound Ripple is fixedly welded on the frame (11), or the plasticity cover plate (30) is adhered to the frame (11).

9. the hydroecium (1) as any one of claim 2 to 7, it is characterised in that the plasticity cover plate (30), which has, to be strengthened Muscle (31).

10. the hydroecium (1) as any one of claim 2 to 7, it is characterised in that the frame (11) has further With the second inner edge (112), second inner edge (112) is located at the opposite side with first inner edge (111), also, described Being molded body (10) further has cut-off (13), and the cut-off (13) is located in the temperature control sap cavity (40) and is connected to described Between first inner edge (111) and second inner edge (112).