CN207116551U - Battery modules and battery bag - Google Patents

Abstract

The utility model provides a kind of battery modules and battery bag.Battery modules include：Framework, it is thermal conductivity, there is perisporium and host cavity；Two end plates, are respectively fixedly connected with the both ends of the axially open of framework, and seal the both ends of the axially open of framework respectively to form sealing space together with perisporium；Multiple battery units, are contained in sealing space, and each battery unit has at least one secondary cell；Battery modules also include：Coolant, it is housed in sealing space, contacts perisporium and impregnate each secondary cell.Battery bag includes：Lower box, there is bottom wall；At least one battery pack row, each battery pack row includes at least one battery modules, each battery modules are arranged on bottom wall, each battery modules are associated with least one point of coolant flow path, and the battery modules of each battery pack row divide total coolant flow path that coolant flow path forms battery modules row.The setting of coolant drastically increases the radiating effect of battery modules and battery bag.

Description

Battery modules and battery bag

Technical field

It the utility model is related to field of batteries, more particularly to a kind of battery modules and battery bag.

Background technology

Secondary cell has various forms.According to types of housings, secondary cell can be divided into bag type secondary battery and pot Secondary cell.The shell of bag type secondary battery is made up of the laminate including polymeric layer and metal level.Can type secondary battery Shell is generally made up of metal-back and metal roof cover plate.

Multiple secondary cells are generally arranged and fixed by corresponding framework by battery modules.

Battery modules using can type secondary battery are typically the multiple can type secondary batteries and former and later two end plates arranged Two side plates are welded and fixed again in two end plates after being pressed together, finally in the bottom peripheral hardware water of multiple can type secondary batteries Cooling system (or even thermal conductive silicon rubber cushion).

Battery modules using bag type secondary battery are typically that bag type secondary battery is pasted on into metallic plate (generally use aluminium Plate) over-assemble into battery cell arrangement being fixed again after battery unit, finally with the battery modules using can type secondary battery Equally, the bottom peripheral hardware water-cooling system (or even thermal conductive silicon rubber cushion) of multiple battery units, the secondary electricity of pouch-type is realized by metallic plate Heat transfer of the pond to water-cooling system.

It is but either still equal using the battery modules of bag type secondary battery using the battery modules of can type secondary battery Need further to improve in the radiating of battery modules, to improve the radiating effect of battery modules.

Similarly, the battery modules using can type secondary battery or the battery modules using bag type secondary battery are applied to electricity , it is necessary to further be improved in the radiating of battery bag, to improve the radiating effect of battery bag when pond is wrapped.

Utility model content

In view of problem present in background technology, the purpose of this utility model is to provide a kind of battery modules and battery Bag, it can improve the radiating effect of battery modules and battery bag.

To achieve these goals, the utility model first aspect provides a kind of battery modules, and it includes：Framework, it is Thermal conductivity, there is perisporium and perisporium to surround the host cavity of circumferentially closed but axial both ends open；Two end plates, are fixed respectively It is connected to the both ends of the axially open of framework, and seals the both ends of the axially open of framework respectively to form sealing together with perisporium Space；Multiple battery units, are contained in sealing space, and each battery unit has at least one secondary cell；Battery modules are also Including：Coolant, it is housed in sealing space, contacts perisporium and impregnate each secondary cell.

To achieve these goals, the utility model second aspect provides a kind of battery bag, and it includes：Lower box and At least one battery pack row.Lower box has bottom wall.Each battery pack row includes at least one battery modules, each battery modules arrangement In on the bottom wall of lower box, each battery modules have the multiple batteries for forming the housing of sealing space and being contained in sealing space Unit, each battery unit have at least one secondary cell；Each battery modules are associated with least one point of coolant flow path, The battery modules of each battery pack row divide total coolant flow path that coolant flow path forms battery modules row.

To achieve these goals, the utility model third aspect provides a kind of battery bag, and it includes：Lower box, tool There is bottom wall, runner is provided with bottom wall；Battery modules described at least one first aspect, are supported on the bottom wall of lower box.

The beneficial effects of the utility model are as follows：

According in battery modules of the present utility model and battery bag, the setting of coolant drastically increases battery mould The radiating effect of group and battery bag.

Brief description of the drawings

Fig. 1 is used according to the exploded perspective view of battery modules of the present utility model, the wherein battery unit of battery modules Bag type secondary battery and each lug has been bent, and the bending of each lug can just bend or formed when forming battery unit Do not bend during battery unit and bent when forming battery modules.

Fig. 2 is the assembling figure of Fig. 1 part building block, shows the assembly relation of end plate and multiple battery units.

Fig. 3 is Fig. 1 assembling figure.

Fig. 4 is the stereogram of the battery unit in battery modules of the present utility model, and wherein battery unit uses bag Type secondary cell and each lug is not bent.

Fig. 5 is the exploded perspective view of a Fig. 4 embodiment, wherein each lug is not bent.

Fig. 6 is the exploded perspective view of Fig. 4 another embodiment, wherein each lug is not bent.

Fig. 7 be according to the three-dimensional cutaway view of the part building block of battery modules of the present utility model, show framework with The sealing space that two end plates surround.

Fig. 8 is the sectional view according to battery modules of the present utility model.

Fig. 9 is the schematic diagram according to the coolant distribution of battery modules of the present utility model.

Figure 10 is the exploded perspective view according to an embodiment of battery bag of the present utility model.

Figure 11 is Figure 10 assembling stereogram.

Figure 12 is the stereogram splitted of the block in Figure 10.

Figure 13 is Figure 11 stereogram splitted.

Figure 14 is the stereogram splitted according to another embodiment of battery bag of the present utility model.

Figure 15 is the stereogram splitted according to the another embodiment of battery bag of the present utility model.

Figure 16 is the stereogram splitted according to the another embodiment of battery bag of the present utility model.

Figure 17 is the schematic diagram of another embodiment of the runner of the lower box in Figure 10.

Figure 18 is the stereogram of another embodiment of the battery modules in Figure 10.

Figure 19 is the exploded perspective view of the housing in Figure 18.

Figure 20 is according to the stereogram of another embodiment of battery bag of the present utility model, and it uses Fig. 3 battery modules.

Wherein, description of reference numerals is as follows：

The elastic buffering pad of 1 battery modules 17

The sealing ring of 11 framework 18

111 perisporium V1 balanced valves

1111 first the first check valves of perforate V2

1112 second the first epicoeles of perforate V21

1113 the 3rd the first intermediate cavities of perforate V22

1114 the first cavity of resorptions of end face V23

112 host cavity V24 springs

S sealing spaces the first spheroids of V25

12 the second check valves of end plate V3

121 the first upper channels of plate body V31

1211 the second lower channels of projection V32

1212 the second spheroids of accommodating recess V33

122 inserts P diaphragm seals

The housing of 1221 stop surface 19

The upper shell of 1222 tab 191

The lower house of 13 battery unit 192

The lower box of 131 secondary cell 2

The bottom wall of 1311 main part 21

1312 sidepiece B blocks

1313 lug R recesses

The dynamic path unit of 132 fixed block U shuntings

1321 locating slot U1 runners

1322 positioning convex portion U2 discharge orifices

1323 the first intercommunicating pores of location indentations U3

1324 groove U4 connecting tubes

14 the second intercommunicating pores of coolant U5

The joint of 15 connection sheet 3

16 output chip F1 flow passage side paths

161 teat F2 connecting tubes side paths

Embodiment

Describe in detail with reference to the accompanying drawings according to battery modules of the present utility model and battery bag.

Illustrate the battery modules according to the utility model first aspect first.

As shown in Figures 1 to 9, included according to the battery modules 1 of the utility model first aspect：11, two end plates of framework 12nd, multiple battery units 13.Framework 11 is thermal conductivity, and there is perisporium 111 and perisporium 111 to surround circumferentially closed but axial direction two The host cavity 112 of end opening；Two end plates 12 are respectively fixedly connected with the both ends of the axially open of framework 11, and sealing frame respectively The both ends of the axially open of body 11 are with the formation sealing space S together with perisporium 111；Multiple battery units 13 are contained in sealing space In S, each battery unit 13 has at least one secondary cell 131.Battery modules 1 also include：Coolant 14, it is empty to be housed in sealing Between in S, contact perisporium 111 simultaneously impregnates each secondary cell 131.

Compared with prior art carries out cooling using aluminium sheet, in the battery modules 1 according to the utility model first aspect, Multiple battery units 13 are contained in sealing space S, and coolant 14 contacts perisporium 111 and impregnates each secondary cell 131, makes Obtain secondary cell 131 and (i.e. at least one of the outer surface of the dipping of coolant 14 secondary cell 131 is directly contacted with coolant 14 Point), so as to prior art secondary cell 131 indirectly with water-cooling system water heat exchange compared with, thermal dissipating path is short, due to cooling The mobility of liquid 14 so that coolant 14 flowed under its liquid level be filled into sealing space S allowed it is all In gap, which increase heat conduction path, is effectively improved the radiating effect of battery modules 1 and the uniformity of radiating；Perisporium The 111 circumferentially closed frameworks 11 surrounded can be radiated using whole perisporium 111, drastically increase dissipating for battery modules 1 Thermal effect.

As shown in figures 1 and 3, the perisporium 111 of framework 11 is additionally provided with first perforate connected with host cavity 112 1111；Battery modules 1 also include：Balanced valve V1, it is communicated in the first perforate 1111.Balanced valve V1 is used to keep in sealing space S Air pressure constant, avoid battery modules 1 by external impact extruding or secondary cell 13 produced during charge and discharge cycles it is swollen The air pressure inside of battery modules 1 is excessive and leak coolant 14 when swollen.Preferably, balanced valve V1 is breather valve.Thus, coolant 14 Liquid level in sealing space S can determine depending on the air pressure requirement in sealing space S.

As shown in Fig. 1, Fig. 3, Fig. 7 and Fig. 8, the perisporium 111 of framework 11 be additionally provided with connected with host cavity 112 be used for cool down The second perforate 1112 that liquid 14 injects and the 3rd perforate 1113 for the gas discharge in coolant 14 and sealing space S.

After their function of rising is completed in the second perforate 1112 and the 3rd perforate 1113, the second perforate 1112 and the 3rd Perforate 1113 can be respectively provided with the diaphragm seal P blocked.So as to coolant of the battery modules 1 only by being housed in host cavity 112 14 and the framework 11 of thermal conductivity radiate.Certainly also outside cooling system can be further set to strengthen cooling effect outside Fruit.Battery modules 1 also include：First check valve V2, it is communicated in the second perforate 1112；Second check valve V3, is communicated in the 3rd and opens Hole 1113, the second check valve V3 and the first check valve V2 are opposite on fluid direct of travel.

First check valve V2 and the second check valve V3 can be set with any suitable construction.In one embodiment, reference Fig. 7 and Fig. 8, the first check valve V2 are used to inject coolant 14 into sealing space S and ensure that coolant 14 will not be single from first Flowed out to valve V2, the second check valve V3 is used to the excessive coolant 14 of the gas in sealing space S or injection is discharged and ensured The only export but no import of coolant 14 (it should be noted that the first check valve V2 and the second check valve V3 can be removed after the completion of fluid injection, and Second perforate 1112 and the 3rd perforate 1113 also can the pressurizing window after the first check valve V2 and the second check valve V3 is removed, such as Reference picture 1, the second perforate 1112 and the 3rd perforate 1113 are respectively provided with the diaphragm seal P blocked, certainly, the first check valve V2 and Second check valve V3 can not also be removed so that the later stage of coolant 14 extracts out and injected again, while by the second check valve V3 also It can be radiated).Specifically, the first check valve V2 has：First epicoele V21；First intermediate cavity V22, the first intermediate cavity V22's Diameter is more than the first epicoele V21 diameter；First cavity of resorption V23, connected with the first intermediate cavity V22, diameter is less than the first intermediate cavity V22, it is communicated in the second perforate 1112；First spheroid V25, diameter are more than the first epicoele V21 diameter, more than the first cavity of resorption V23 Diameter but less than the first intermediate cavity V22 diameter；Spring V24, it is arranged between the first spheroid V25 and the first cavity of resorption V23, bullet Spring V24 external diameter is more than the first cavity of resorption V23 diameter；Wherein, the first spheroid V25 is contained in the first intermediate cavity V22, in spring Can be moved upwards in the first intermediate cavity V22 in the presence of V24 makes the first epicoele V21 and to block the first epicoele V21 One intermediate cavity V22 is not connected and compression spring V24 and can opened on first downwards in the presence of the coolant 14 of injection Chamber V21 so that the first epicoele V21 connected with the first intermediate cavity V22 (ensure that coolant 14 can only be flowed into from the first epicoele V21 and It can not be flowed out from the first cavity of resorption V23).Second check valve V3 has：First upper channel V31；Second lower channel V32, second time logical Road V32 diameter is less than the first upper channel V31；Second spheroid V33, in the first upper channel V31, the second spheroid V33's is straight Footpath is more than the second lower channel V32 diameter but is less than the first upper channel V31 diameter (so as to ensure that coolant 14 can only be from second Lower channel V32 flows out and can not flowed into from the first upper channel V31).The first check valve V2 and second shown in Fig. 7 and Fig. 8 is unidirectional Valve V3 is only an example, and other any known check valves can be used.

The type of secondary cell 131 is unrestricted.Secondary cell 131 has various forms.According to types of housings, secondary electricity Pond 131 can be divided into bag type secondary battery and can type secondary battery.The shell of bag type secondary battery is by including polymeric layer and gold The laminate of category layer is made.The shell of can type secondary battery is generally made up of metal-back and metal roof cover plate.

In one embodiment, for reference picture 4 to Fig. 6, each secondary cell 131 is bag type secondary battery；Secondary cell 131 has Main part 1311, the sidepiece 1312 positioned at the both ends of main part 1311 and the lug 1313 to stretch out from each sidepiece 1312. Each battery unit 13 also includes：Two fixed blocks 132, each fixed block 132 are fixed on the sidepiece 1312 of secondary cell 131 so that phase The main part 1311 of the secondary cell 131 of adjacent two battery units 13 is spaced apart, and each fixed block 132 is provided with along the axial direction of framework 11 The locating slot 1321 of insertion, each lug 1313 pass through the locating slot 1321 of each fixed block 132；Two neighboring secondary cell 131 Between main part 1311 between main part 1311 and perisporium 111 that perisporium 111 is adjacent and each end plate 12 internal face and institute (lug 1313 is located at the position from the part that fixed block 132 exposes) deposits between stating the fixed block 132 of multiple battery units 13 There is coolant 14, (coolant 14 there are a variety of filling situations, such as the height of the liquid level of coolant 14 does not reach perisporium 111 Inner top surface, it is preferable that as shown in figure 9, all gaps in the full sealing space S of the filling of coolant 14, are fully led with realizing Heat).Coolant 14 directly cools down to lug 1313, drastically increases the job stability of lug 1313.

Each fixed block 132 is elastomer.Preferably, each fixed block 132 is plastic cement.Fixed block 132 by a variety of molding modes, It is integrally formed as shown in figure 5, can use, naturally it is also possible to which as shown in Figure 6 being molded using split and then be docking together again Molding mode.

In the battery modules 1 according to the utility model first aspect, in one embodiment, as shown in figure 1, per adjacent two The lug 1313 of the secondary cell 131 of individual battery unit 13 is to bending and stick together that (certain connected mode is not limited to The lug 1313 of this or the adjacent secondary cell 131 more than two battery units 13 is to bending and abut in one Rise)；Battery modules 1 also include：Multiple connection sheets 15, for the multiple secondary cell 131 to be electrically connected, each connection The secondary cell 131 of each side of the orientation of piece 15 and two neighboring battery unit 13 to bending and stick together Connection (such as welding) face-to-face of lug 1313；Two output chips 16, it is each defeated for the output of the multiple secondary cell 131 Slice 16 is with the secondary cell 131 of two neighboring battery unit 13 to face-to-face to the lug 1313 for bending and sticking together Connection (is such as welded).

As shown in figure 1, each output chip 16 has teat 161 outstanding along the longitudinal direction；The two of two output chips 16 One in two end plates 12 of individual 161 hermetically passing of teat.

In the battery modules 1 according to the utility model first aspect, for the multiple battery units 13 that will be arranged side by side It is positioned together, in one embodiment, as shown in Figures 4 to 6, fixed block 132 is additionally provided with：At least one positioning convex portion 1322, Positioned at side of the fixed block 132 along the direction side by side of battery unit 13；At least one location indentations 1323, each location indentations 1323 It is with a positioning convex portion 1322 corresponding and positioned at opposite side of the fixed block 132 along the direction side by side of battery unit 13；Wherein, respectively Each positioning convex portion 1322 of the fixed block 132 of the one end of battery unit 13 and the fixed block 132 of adjacent one end of battery unit 13 are right The location indentations 1323 answered are docked, and two neighboring battery unit 13 is positioned together.Certainly can also use other Fixed form, however it is not limited to above-described embodiment.

As shown in figure 1, battery modules 1 also include：Multiple elastic buffering pads 17, positioned at the two of two neighboring battery unit 13 The outermost each battery unit 13 in direction side by side is between individual fixed block 132 and in the multiple battery unit 13 Fixed block 132 and framework 11 perisporium 111 between.The setting of multiple elastic buffering pads 17 causes in direction outermost side by side Each battery unit 13 and framework 11 perisporium 111 between there are gap, and then ensure the outermost each battery in direction side by side Unit 13 contacts with coolant 14.Elastic buffering pad 17 can be foamed silica gel, and foamed silica gel will not be with adopting in battery modules 1 Reacted with the coolant 14 of conduction oil, and the through hole performance of foamed silica gel internal structure enough accommodates a large amount of coolants 14 and caused Coolant 14 fully contacts with the main part 1311 of multiple secondary cells 131, improves the radiating effect of battery modules 1.

In the battery modules 1 according to the utility model first aspect, as shown in figure 1, end plate 12 includes：Plate body 121；With And inserts 122, it is fixedly installed on plate body 121.

In order to which end plate 12 and fixed block 132 are positioned, in one embodiment, reference picture 1, fixed block 132 is additionally provided with：At least One groove 1324, positioned at the side towards end plate 12 of fixed block 132；The plate body 121 of end plate 12 is provided with：At least one projection 1211, positioned at the side towards multiple fixed blocks 132 of end plate 12；Each projection 1211 of plate body 121 is corresponding with fixed block 132 A groove 1324 dock, the fixed block 132 of end plate 12 and multiple battery units 13 is positioned together.

Each inserts 122 each side has a stop surface 1221, and stop surface 1221 abuts in the axial of perisporium 111 On end face 1114.The end face 1114 at the edge of stop surface 1221 and the perisporium 111 of framework 11 welds together.

Each inserts 122 each side has the tab 1222 extended to host cavity 112, and tab 1222 is located in simultaneously Arrange between the outermost fixed block 132 in direction and the perisporium 111 of framework 11 and abut in and be in the outermost fixation in direction side by side On the side of block 132.

In order that sealed between end plate 12 and framework 11, as shown in figure 1, battery modules 1 also include：Sealing ring 18, set In end plate 12 periphery and framework 11 perisporium 111 inner surface between, with the inner surface of the perisporium 111 of framework 11 and each end Sealing is formed between the periphery of plate 12.

The periphery of end plate 12 is provided with the accommodating recess 1212 for housing sealing ring 18.Specifically, accommodating recess 1212 is arranged at The periphery of plate body 121.

In the battery modules 1 according to the utility model first aspect, the material of plate body 121 is plastic cement, and the material of inserts 122 is Aluminium.Plate body 121 is integrally formed by injection molding with inserts 122.The material of framework 11 is aluminium.

Coolant 14 is iknsulating liquid.Preferably, iknsulating liquid is conduction oil.

In the battery modules 1 according to the utility model first aspect, perisporium 111 by upper wall, lower wall and left side wall and Right side wall is formed.

Secondly simple example illustrates the assemble method of battery modules 1.

The assemble method of battery modules 1 includes step：By each side-by-side docking of battery unit 13 together；Each elastic buffering pad 17 are arranged between two fixed blocks 132 of two adjacent battery units 13 and the battery unit of direction outermost both sides side by side The surface of 13 fixed block 132, to form assembly；Assembly frock is pressurizeed and elasticity of compression cushion pad 17, so as to by group Zoarium is put into the host cavity 112 of framework 11；By two end plates 12 be accordingly welded to connect in framework 11 axially open two End；First check valve V2 and the second check valve V3 are respectively arranged in the second perforate 1112 and the 3rd perforate 1113 of framework 11 On, the first check valve V2 keeps the only import but no export of coolant 14, and the second check valve V3 keeps the only export but no import of coolant 14, by balanced valve V1 is installed in the first perforate 1111；Coolant 14 is injected to the first check valve V2, when having a small amount of liquid from the second check valve V3 Illustrate that coolant 14 is completely filled with the internal voids of battery modules 1 during outflow, stop fluid injection；Remove the first check valve V2 and second Check valve V3, and the second perforate 1112 and the 3rd perforate 1113 are set into diaphragm seal P and gluing sealing.

Next the battery bag according to the utility model second aspect is illustrated.

As shown in Figure 10 to Figure 19, included according to the battery bag of the utility model second aspect：Lower box 2, there is bottom wall 21；At least one battery pack row, each battery pack row include at least one battery modules 1, and each battery modules 1 are arranged in lower box 2 Bottom wall 21 on, each battery modules 1 have multiple batteries for forming sealing space S housing 19 and being contained in sealing space S Unit 13, each battery unit 13 have at least one secondary cell 131；Each battery modules 1 are associated with least one point of coolant Flow passage, the battery modules 1 of each battery pack row divide total coolant flow that coolant flow path forms battery modules row Path.

In one embodiment, as shown in Figure 10 to Figure 19, each battery modules 1 are associated with the dynamic path unit of at least one shunting U, each dynamic path unit U of shunting include：Runner U1, it is arranged at bottom wall 21；Discharge orifice U2, it is communicated in runner U1 and into bottom wall 21 Surface opening；First intercommunicating pore U3, each housing 19 is arranged at, connects the sealing space S and discharge orifice U2 of each battery modules 1； Connecting tube U4；And the second intercommunicating pore U5, each housing 19 is arranged at, connects the sealing space S and connecting tube of each battery modules 1 U4；Wherein, runner U1, discharge orifice U2, the first intercommunicating pore U3 form flow passage side path F1, the second intercommunicating pore U5 and connecting tube U4 shapes Into connecting tube side path F2, flow passage side path F1, the sealing space S of battery modules 1 and connecting tube side path F2 connect to be formed Divide coolant flow path.

When each battery pack row has only one battery modules 1, each point of coolant flow path of battery modules 1 forms electricity The total coolant flow path of pond module row；When each battery pack row has two battery modules 1, a battery modules 1 A point of coolant flow path connecting tube side path F2 and another battery modules 1 a point of coolant flow path Connecting tube side path F2 connections, to form a total coolant flow path for being used for each battery modules row；When each battery pack is arranged During with the battery modules 1 of more than three, the connecting tube side path of a point of coolant flow path of first battery modules 1 F2 is connected with the connecting tube side path F2 of a point of coolant flow path of second battery modules 1, second battery modules 1 A point of coolant flow path flow passage side path F1 and the 3rd battery modules 1 a point of coolant flow path stream The path F1 connections of road side, the rest may be inferred, to form the total coolant flow path of each battery modules row.

In the battery bag according to the utility model second aspect, it is dynamic logical that each battery modules 1 are associated with least one shunting Road unit U, and shunt dynamic path unit U-shaped composition coolant flow path, coolant 14 along each battery modules arrange by each One total coolant flow flow channels of point coolant flow path composition are with each battery modules 1 for arranging each battery modules Multiple battery units 13 caused by heat directly take away, be effectively improved the radiating effect of battery bag.

Runner U1 and discharge orifice U2 have a variety of generation types, in one embodiment, as shown in Figure 14 and Figure 15, all runner U1 Directly formed by bottom wall 21 with discharge orifice U2 (such as can directly being formed by 3D printing technique).

In the battery bag according to the utility model second aspect, the arrangement form of the battery modules 1 in battery bag and Quantity has various ways, in one embodiment, as shown in figure 14, total cold when each battery pack row has only one battery modules 1 But the runner U1 of liquid flow passage is directly formed by bottom wall 21；In another embodiment, as shown in figure 15, arrange and have when each battery pack When having two battery modules 1, the two connecting tube side path F2 to link together share a connecting tube U4, each total cooling liquid stream Two runner U1 of dynamic path are directly formed by bottom wall 21；In another embodiment, as shown in Figure 11, Figure 13 and Figure 16, When each battery pack row is with the battery modules 1 of more than three, the two flow passage side path F1 to link together share a stream Road U1, each shared runner U1 and with the discharge orifice U2 that each shared runner U1 is connected by hollow one that is arranged on bottom wall 21 Block B is formed, and other runner U1 in addition to shared runner U1 are directly formed by bottom wall 21.

As shown in Figure 10 and Figure 17, when there are block B, the bottom wall 21 of lower box 2 is additionally provided with the recess for housing block B R, certain block B and recess R shape are not limited to this, can be other shape and structures.

In the battery bag according to the utility model second aspect, each battery modules row's has the total coolant of two or more During flow passage, all total coolant flow paths are parallel to each other.As shown in figure 13, Figure 13 there are two battery modules rows, Each battery modules row shows a total cooling formed with two total coolant flow paths, the wherein Figure 13 stereogram splitted Liquid flow passage.Each battery modules row's there is compared to one total coolant flow of the total coolant flow path of two or more to lead to Road, quickly fully each battery modules 1 can be cooled down, improve the radiating effect of battery bag.

When battery bag has two or more battery modules row, in one embodiment, it is preferable that adjacent cell module row's Each total coolant flow path does not connect.As shown in figure 13, Figure 13 there are two battery modules rows, and each battery modules arrange to be formed There are two total coolant flow paths, the wherein Figure 13 stereogram splitted shows a total coolant flow path, two Total coolant flow path of battery modules row does not connect.Each total coolant flow path do not connect with it is described below each total cold But liquid stream is moved communication and compared, and the quantity for the battery modules 1 that coolant 14 flows through is few, and the temperature rise of coolant 14 is relatively low, has more Good cooling effect.

When battery bag has two or more battery modules row, in another embodiment, reference picture 17, adjacent cell module Each total coolant flow communication of row.

As shown in Figure 13 to Figure 16, battery bag also includes：Multiple joints 3, be connected to discharge orifice U2 and the first intercommunicating pore U3 it Between and connecting tube U4 one end and the second intercommunicating pore U5 between, the setting of joint 3 cause discharge orifice U2 and the first intercommunicating pore U3 it Between and connecting tube U4 one end and the second intercommunicating pore U5 between realize be tightly connected, prevent reveal liquid.

The type of cooling of battery bag is suitable for the confined space S formed in any way, in one embodiment, housing 19 by Framework 11 and two end plates 12 are formed.Certain confined space S can be formed by housing 19, such as shown in Figure 18 and Figure 19, housing 19 are made up of upper shell 191 and lower house 192.

In the battery bag according to the utility model second aspect, the secondary cell 131 in battery bag in each battery modules 1 Can be that can type secondary battery is alternatively bag type secondary battery.In one embodiment, secondary cell 131 is can type secondary battery, respectively Can type secondary battery directly constitutes battery unit 13.

In another embodiment, secondary cell 131 is bag type secondary battery, and secondary cell 131 has main part 1311, position Sidepiece 1312 and the lug 1313 that stretches out from each sidepiece 1312 in the both ends of main part 1311；Each battery unit 13 is also Including：Two fixed blocks 132, each fixed block 132 is fixed on the sidepiece 1312 of secondary cell 131 so that two neighboring battery unit The main part 1311 of 13 secondary cell 131 is spaced apart, each fixed block 132 be provided with along housing 19 axially through locating slot 1321, each lug 1313 passes through the locating slot 1321 of each fixed block 132.

Preferably, housing 19 is heat conduction, so as in addition to it can use the coolant of above-mentioned flowing and be cooled down, go back Itself it can be radiated by housing 19.When in use, housing 19 can be blowed.

Finally illustrate the battery bag according to the utility model third aspect.

As shown in figure 20, the battery bag of the utility model third aspect includes：Lower box 2, has a bottom wall 21, in bottom wall 21 Provided with runner U1；At least one battery modules 1 according to the utility model first aspect, it is supported on the bottom wall of lower box 2 On 21.Specifically, the battery bag of the utility model third aspect does not use Figure 10 to Figure 19 flowing coolant mode, that is, cancels Connecting tube U4, by runner U1 only in the bottom wall 21 and and ft connection, so as to using the battery modules in Fig. 1 to Fig. 9 1, Fig. 1 to Fig. 9 battery modules 1 by inside coolant 14 by framework 11 of the heat transfer caused by battery to thermal conductivity, then The other coolant 14 being delivered to by framework 11 via bottom wall 21 in runner U1, so as to realize radiating.

Claims (12)

1. a kind of battery modules (1), including：

Framework (11), it is thermal conductivity, there is perisporium (111) and perisporium (111) to surround circumferentially closed but axial both ends open Host cavity (112)；

Two end plates (12), are respectively fixedly connected with the both ends of the axially open of framework (11), and seal framework (11) respectively The both ends of axially open are with the formation sealing space (S) together with perisporium (111)；

Multiple battery units (13), it is contained in sealing space (S), each battery unit (13) has at least one secondary cell (131)；

Characterized in that, battery modules (1) also include：

Coolant (14), it is housed in sealing space (S), contact perisporium (111) simultaneously impregnates each secondary cell (131).

2. battery modules (1) according to claim 1, it is characterised in that

The perisporium (111) of framework (11) is additionally provided with first perforate (1111) connected with host cavity (112)；

Battery modules (1) also include：Balanced valve (V1), it is communicated in the first perforate (1111).

3. battery modules (1) according to claim 1, it is characterised in that

The perisporium (111) of framework (11) is additionally provided with the second perforate for being used for coolant (14) injection connected with host cavity (112) (1112) the 3rd perforate (1113) and for the gas in coolant (14) and sealing space (S) discharged.

4. battery modules (1) according to claim 3, it is characterised in that the second perforate (1112) and the 3rd perforate (1113) it is respectively provided with the diaphragm seal (P) blocked.

5. battery modules (1) according to claim 3, it is characterised in that battery modules (1) also include：

First check valve (V2), it is communicated in the second perforate (1112)；

Second check valve (V3), the 3rd perforate (1113) is communicated in, the second check valve (V3) is with the first check valve (V2) in fluid Direct of travel is opposite.

6. battery modules (1) according to claim 1, it is characterised in that

Each secondary cell (131) is bag type secondary battery；

Each secondary cell (131) have main part (1311), the sidepiece (1312) positioned at the both ends of main part (1311) and from The lug (1313) that each sidepiece (1312) stretches out；

Each battery unit (13) also includes：Two fixed blocks (132), each fixed block (132) are fixed on the side of secondary cell (131) Portion (1312) so that the secondary cell (131) of two neighboring battery unit (13) main part (1311) be spaced apart, each fixed block (132) be provided with along framework (11) axially through locating slot (1321), each lug (1313) determines through each fixed block (132) Position groove (1321)；

Between the main part (1311) of two neighboring secondary cell (131), with the adjacent main part (1311) of perisporium (111) with week Deposited between wall (111) and between the internal face of each end plate (12) and the fixed block (132) of the multiple battery unit (13) There is coolant (14).

7. battery modules (1) according to claim 6, it is characterised in that battery modules (1) also include：

Multiple elastic buffering pads (17), between two fixed blocks (132) of two neighboring battery unit (13) and it is located at The fixed block (132) and framework in the outermost each battery unit (13) in direction side by side in the multiple battery unit (13) (11) between perisporium (111).

8. battery modules (1) according to claim 6, it is characterised in that

Fixed block (132) is additionally provided with：At least one groove (1324), positioned at the side towards end plate (12) of fixed block (132)；

The plate body (121) of end plate (12) is provided with：At least one projection (1211), positioned at end plate (12) towards multiple fixed blocks (132) side；

Each projection (1211) groove (1324) docking corresponding with fixed block (132) of plate body (121), by end plate (12) fixed block (132) with multiple battery units (13) is positioned together.

9. battery modules (1) according to claim 7, it is characterised in that coolant (14) is conduction oil, elastic buffering pad (17) it is foamed silica gel.

10. a kind of battery bag, including：

Lower box (2), there is bottom wall (21)；

At least one battery pack row, each battery pack row include at least one battery modules (1), and each battery modules (1) are arranged in down On the bottom wall (21) of casing (2), each battery modules (1) have the housing (19) for forming sealing space (S) and are contained in sealing sky Between multiple battery units (13) in (S), each battery unit (13) has at least one secondary cell (131)；Each battery modules (1) at least one point of coolant flow path is associated with, the battery modules (1) of each battery pack row divide coolant flow path shape Into total coolant flow path of battery modules row.

11. battery bag according to claim 10, it is characterised in that each battery modules (1) are associated with least one shunting Dynamic path unit (U), each dynamic path unit (U) of shunting include：

Runner (U1), it is arranged at bottom wall (21)；

Discharge orifice (U2), it is communicated in runner (U1) and to the inner surface upper opening of bottom wall (21)；

First intercommunicating pore (U3), each housing (19) is arranged at, connects the sealing space (S) and discharge orifice (U2) of each battery modules (1)；

Connecting tube (U4)；And

Second intercommunicating pore (U5), each housing (19) is arranged at, connects the sealing space (S) and connecting tube of each battery modules (1) (U4)；

Wherein, runner (U1), discharge orifice (U2), the first intercommunicating pore (U3) formed flow passage side path (F1), the second intercommunicating pore (U5) with And connecting tube (U4) formed connecting tube side path (F2), flow passage side path (F1), battery modules (1) sealing space (S) and Connecting tube side path (F2) connection formation divides coolant flow path.

A kind of 12. battery bag, it is characterised in that including：

Lower box (2), there is bottom wall (21), runner (U1) is provided with bottom wall (21)；

At least one battery modules according to any one of claim 1-9, it is supported on the bottom wall (21) of lower box (2) On.