CN106410316B - Battery pack and vehicle with such battery pack - Google Patents

Abstract

The invention particularly proposes a battery assembly (3) having a battery housing (4), a battery carrier (5) which forms the bottom, to which two or more battery modules (9) are fastened and which are electrically connected to each other, wherein at least one heat exchanger (12) is arranged between two adjacent battery cell modules (9), which is connected or connectable in a fluid-tight manner by means of at least one inlet connection stub and at least one return connection stub (20, 21) to an associated receiving element (24, 25) of a fluid line of a fluid circuit within the battery housing (4), and wherein the connection stubs (20, 21) together with the receiving elements (24, 25) form a releasable quick-connection.

Description

Battery pack and vehicle with such battery pack

technical field

The invention relates to a battery pack according to the invention in combination of the features of claim 1 . Furthermore, according to claim 12 , the invention relates to a vehicle, in particular a hybrid vehicle or an electric vehicle, having such a battery pack.

Background technique

Hybrid or electric vehicles are operated by means of rechargeable electrical energy stores, also referred to as traction batteries. During recharging of the battery, in particular during fast charging, high power losses occur, which can cause a high thermal load on the battery. In order to cope with this situation, a temperature regulation of the traction battery is required, which takes place, for example, by means of a cooling device. In this regard, DE 10 2010 007 975 B4 proposes a charging station for an electrical energy store of a motor vehicle, which charging station has a cooling device with at least one cooling line that can be connected to the motor vehicle , for supplying coolant to the traction battery. In this case, the traction battery should have a cooling module with at least one cooling channel, wherein during charging, the coolant supplied by the cooling line of the charging station is to be guided through the cooling channel of the traction battery. The connection of the cooling line of the cooling device of the charging station to the vehicle-side interface for the cooling module of the traction battery takes place via a coupling.

Furthermore, it is known that the service life of the traction battery is reduced when the operating temperature of the battery exceeds 40°C, and that its efficiency decreases below -10°C. In addition, the temperature difference between the individual battery cells should not exceed 5°C. To ensure that the boundary conditions are known, the traction battery is integrated into the vehicle-side cooling system. In this case, the battery-side cooling module is integrated into the low-temperature cooling circuit of the motor vehicle, wherein the thermal manager ensures that the ideal operating temperature range is maintained. This ideal operating temperature range is, for example, 20°C to 30°C. Furthermore, the temperature controller regulates the temperature of the battery system in the stated temperature range in all operating states of the battery system, in particular also during driving of the motor vehicle. A cooling module is known from DE 10 2008 059 969 A1, which is designed in the form of a plate as a heat exchanger and is connected to the cells of the battery in a heat-conducting manner within the battery housing. Proceeding from the heat exchanger, the coolant line section leads into a region outside the battery housing and is connected there in a fluid-tight manner with the air conditioning unit of the vehicle via a releasable coupling element. The document does not describe how the direct connection between the coolant line section and the heat exchanger is achieved. However, on the basis of obvious prior use it is known that the cooling lines are fastened fluid-tightly on the connecting stubs of the heat exchanger by means of manually assembled pipe clamps. This measure is expensive, since a tool must be provided for this, which in addition requires a correspondingly large free space for operation. Furthermore, in the event of possible incorrect assembly and the resulting introduction of clips into the battery system, the battery system has to be dismantled, since a potential electrical hazard is created here.

SUMMARY OF THE INVENTION

The object of the present invention is therefore to create a battery assembly which can be produced in a simple and cost-effective manner and which allows, in particular, a comfortable manual assembly of the fluid lines on the heat exchanger of the battery assembly inside the battery housing . Furthermore, it is an object of the present invention to provide a vehicle, in particular a hybrid vehicle or an electric vehicle, which has a battery pack of the aforementioned type.

The proposed task is solved by a battery assembly having a battery carrier of the battery housing, which forms the bottom, on which two or more battery modules are fastened and are electrically connected to each other, wherein the two or more battery modules are electrically connected to each other. Arranged between two adjacent battery modules is at least one heat exchanger, which is connected to the fluid line of the fluid circulation inside the battery housing by means of at least one connection stub of the inflow and at least one return stub of the return. The assigned receiving element is connected or connectable in a fluid-tight manner, and the connector stub together with the receiving element forms a releasable quick connector.

According to the invention, a quick connector is understood to mean a fluid-tight connection between two tubular ends of a fluid line, which is achieved only by axially plugging in, in particular manually, the ends. Other manual engagement measures, such as by means of mechanical fastening elements, which in particular require tools, are therefore not necessary. This measure advantageously simplifies the fluid-tight attachment of the fluid line fluid to the heat exchanger inside the battery housing. In addition, savings are achieved in particular in production time and material.

The dependent claims describe preferred refinements or configurations of the invention.

According to an embodiment of the invention, which is especially practical, the connector stubs are each designed in a tubular shape and are inserted or can be inserted into a tubular receiving element of the assigned fluid line and are positively connected or can be connected to one another. connect.

In order to achieve the positive fit, the respective joint stub is preferably formed with a circumferential detent element directed radially outward from the outer side of the joint stub, which detent element is assigned to the respective joint stub. The latching counterpart of the receiving element and pointing radially inward.

Furthermore, it is preferred that the currently preferably encircling latching element is formed in one piece with the joint stub, so that a saving in material and production time is achieved.

According to a particularly simple and functionally reliable embodiment of the latching counterpart, the latching counterpart is formed by a clamping part which can be fastened to the base part of the receiving element and which, in the assembled state, is at least partially Surrounding the joint stub, the clamping element comprises a spring-elastically constructed, arcuate base body, which extends through a central arcuate section and at each end one of the two ends adjoins the central arcuate section. The bow-shaped legs are formed, wherein one of the latching counterparts is formed on the free end of each bow-shaped leg.

The latch counterparts are preferably arranged opposite one another in a clamp-like manner and point towards each other. In the assembled state of the clamping element with the base part of the receiving element and the joint stub, the latching counterpart penetrates through a corresponding opening in the wall of the base part of the receiving element and thus axially aligns the joint stub fixed on the receiving element.

The arcuate base body of the clamping part is guided in a movable manner in the guide groove of the base part, preferably transversely to the longitudinal direction of the receiving element, that is to say from the first operating state "I" to the second operating state In “II”, the first operating state corresponds to the base state in which the central segment of the arcuate base body is arranged radially spaced apart from the outer contour of the base part of the receiving element and The latching counterpart is in a latching state relative to the latching element, and in the second operating state the central segment of the arcuate base rests against or is arranged close to the outer contour of the base part of the receiving element . This has the advantage of easy accessibility and manual operation of the clamping element for possibly releasing the form fit. For this purpose, a ramp is formed in each case by the two arcuate feet, which engage on the central arcuate section of the arcuate base body and carry the latching counterpart. In this case, the ramp is supported on the base part of the receiving element in such a way that the detent counterpart is radially positioned as a result of the movement of the clamping element from its first operating state "I" into its second operating state "II" Move away from each other and release the latching of the latching counterpart and the latching element of the connector stub.

According to a further provision of the invention, the connection stub is preferably arranged at an angle "α" pointing away from the battery holder, so that, in particular, the connection of the fluid line to the heat exchanger is minimized while the installation space requirement is minimized. Manual connection on the assigned connector stubs is simplified. The angle "α" has been shown to be particularly advantageous: the angle is selected from the range of 10° to 30°. The angle "α" is preferably about 15°.

With regard to the at least one heat exchanger, the heat exchanger is here preferably of plate-like design, so that the heat exchanger advantageously has a large surface against two adjacent, in each case plate-like contact surfaces. on the battery cell module.

The invention also relates to a vehicle, in particular a hybrid or electric vehicle, having a battery pack of the aforementioned type.

Description of drawings

The invention is explained in more detail below with reference to the exemplary embodiments shown schematically in the drawings. However, the present invention is not limited to the described embodiments, but includes all configurations defined by the claims. The attached figure shows:

FIG. 1 shows very schematically a motor vehicle equipped with a battery pack constructed according to the invention,

Figure 2 shows the described battery assembly in a perspective view,

Figure 3 shows an exploded perspective view of the assembled unit consisting of two cell modules and a heat exchanger,

FIG. 4 shows the assembly unit according to FIG. 3 in assembly,

Fig. 5 shows the detail part "Z" according to Fig. 2,

Fig. 6 shows a cross-sectional view of the quick connector between the heat exchanger and the fluid line, corresponding to the section line "A-A" according to Fig. 5,

Fig. 7 shows the detail part "Y" according to Fig. 6,

FIG. 8 shows the quick connector according to FIGS. 6 and 7 in a perspective one-piece view with a connector stub arranged on the heat exchanger side and a receiving element for the connector stub arranged on the fluid line side,

Figure 9 shows a perspective individual view of the base part of the receiving element,

FIG. 10 shows a perspective individual view of the clamping part of the receiving element,

FIG. 11 shows a view on the front side of the receiving element according to FIG. 9 with a representation of the clamping part in the first operating state or in the basic state, and

FIG. 12 shows a view on the end side of the receiving element according to FIG. 9 with a representation of the clamping part in a second operating state.

Detailed ways

FIG. 1 firstly shows a vehicle 1 , here a motor vehicle, with an electric motor 2 as a drive motor and a battery pack 3 , which forms a traction battery. According to this exemplary embodiment, a purely electrically operated motor vehicle 1 is therefore involved. The invention naturally also includes a so-called hybrid vehicle which, in addition to one or more electric motors 2 , also has an internal combustion engine (not shown in the drawing).

According to FIG. 2 , the battery assembly 3 has a battery housing 4 with a bottom-forming battery carrier 5 , which is designed in the shape of a basin with a carrier bottom 5 a and upwardly directed carrier walls 5 b . This form of the battery holder 5 corresponds to the preferred form of the battery housing 4 taking into account the waterproofing. A cover element 6 , which is only shown schematically, is assigned to the battery holder 5 , which is placed on the free end side 7 of the tub-shaped battery holder 5 and is provided with hollow cylindrical centering pins shown in FIG. 2 . 8 and are threaded by means of screws, not shown in the drawing, which pass through the centering pins 8 . An annular seal, not shown in the drawing, is preferably provided in order to seal the engagement point. Furthermore, the battery holder 5 is preferably at least a casting made of, for example, aluminum or an aluminum alloy.

However, the invention is not limited to the described battery holder 5, which is preferably designed in the shape of a basin, but also includes a substantially plate-shaped battery holder 5 and therefore does not have the described holder wall 5b (not shown in the drawing) .

The battery carrier 5 is equipped here with eight cell modules 9 which are electrically connected to one another, wherein every four cell modules 9 form a module group 10a, 10b, and each module group 10a, 10b Consists of two assembly units 11 . According to FIGS. 2 to 4 , each assembly unit 11 consists of two parallelepiped-shaped battery cell modules 9 , which are given only by way of example, between which plate-shaped heat exchange is arranged. The heat exchanger 12 is preferably made of aluminium or an aluminium alloy. The two battery cell modules 9 of each assembly unit 11 together with the heat exchanger 12 are force-fitted by means of screw connections (not shown) in connection with the first and second module holders 13 , 14 . The first and second module supports are arranged on the end sides of the two battery cell modules 9 .

According to the present embodiment, the first and second module supports 13 , 14 have a substantially X-shaped configuration ( FIGS. 3 and 4 ) and are preferably formed by substantially upper-shaped sheet metal bending parts and/or stamping parts, respectively. The free legs 15 of the X-shaped module holders 13 , 14 are bent at 90° to the respective battery cell module 9 and each have a fastening hole 16 . The two cell modules 9 are provided by means of the fastening holes 16 visible in FIG. 4 of the adjacent module holders 13 , 14 and the through-drills assigned through the two cell modules 9 and the heat exchanger 12 The holes are tightened with screws 17 to connect to each other (Fig. 4). Here, the fastening screws 17 are supported axially at one end by means of their screw heads 18 on the free feet 15 of the first module support 13 and at the other end by means of nuts 19 on the second module on the free legs 15 of the bracket 14 . Said nut 19 is preferably connected as a so-called weld nut in a cohesive manner to the associated foot 15 of the second module support 14 by welding.

As can be seen in particular from FIG. 3 , the heat exchanger 12 has two joint stubs 20 , 21 which allow the heat exchanger 12 to be attached to the vehicle 1 , which is known and therefore not shown in the drawing. in the fluid circulation of the vehicle, especially the cooling circuit of the vehicle. Said cooling cycle preferably involves a cryogenic-cooling cycle. Said fluid circuit is accordingly a cooling circuit through which a cooling medium flows, for example comprising water and glycols. The connecting stub 20 is integrated or can be integrated into the so-called inflow part of the cooling circuit, and the further connecting stub 21 is integrated or can be integrated into the so-called return part of the cooling circuit. In this regard, FIG. 2 shows the battery support 5 together with the battery modules 9 while the battery support 5 is equipped with the line sections 22 a , 22 b ; 23 a , 23 b of the fluid lines of the inflow and return of the cooling circuit. . Two line sections 22a, 22b; 23a, 23b are provided for the current four heat exchangers 12 of the battery pack 3, both for the inflow and for the return, each having two receiving elements 24 , 25 for the fluid-tight connection of the line section with the correspondingly assigned connector stubs 20 or 21 in the interior of the battery housing 4 . The receiving elements 24, 25 are produced as separate components and are preassembled on the respective line sections 22a, 22b; 23a, 23b.

As can be seen in particular from FIG. 6 , the connection stubs 20 , 21 are at an angle “α” away from the battery holder 5 , that is to say upwards towards the cover element 6 , so that the fluid lines of the inflow and return of the cooling circuit are The attachment of the respective receiving elements 24, 25 of said line sections 22a, 22b; 23a, 23b of the road is simplified. An angle "α" of 10° to 30°, however preferably an angle "α" of about 15° has proven to be advantageous in experiments.

The line sections 22a, 23a of the inflow and the line sections 22b, 23b of the return line converge at the other end in each case and can be connected by means of coupling elements 26, 27, respectively, to a not shown diagram of the cooling circuit. connector on the short line. It can thus be seen that the two coupling elements 26 , 27 are guided outwards through the carrier base 5 a of the battery carrier 5 , so that the connection and release of the connections (not shown in the drawing) also takes place in the case of a closed battery housing 4 . Shows).

According to FIGS. 5 to 12 , the respective joint stubs 20 , 21 of each heat exchanger 12 and the respective assigned receiving elements 24 , 25 of the line sections 22 a , 22 b ; 23 a , 23 b of the fluid line can be configured to be loose detachable quick connector. As already explained above, according to this embodiment a quick connector is to be understood as a fluid-tight connection between the two tubular ends of a fluid line, which fluid-tight connection is achieved solely by the axial insertion of said ends, In particular, manual insertion is achieved. Other manual engagement measures, such as by means of mechanical fastening elements, which in particular require tools, are therefore not necessary.

Therefore, the joint stubs 20 , 21 are now of tubular design and inserted according to the direction arrows 28 in FIG. 5 by axial movement of the tubularly configured receiving elements 24 , 25 ( FIGS. 6 , 7 ) . The connector stubs 20 , 21 and the assigned receiving elements 24 , 25 are connected to each other in a form-fitting and fluid-tight manner in the assembled state. Said fluid-tightness is achieved by at least one, in this case two, preferably elastomeric, annular seals 29 which are inserted into the receiving elements 24 , 25 and form a unit with the latter. In the assembled state of the joint stubs 20 , 21 and the receiving elements 24 , 25 , the annular sealing portion 29 is supported not only on the inner contour of the receiving elements 24 , 25 , but also on the outside of the joint stubs 20 , 21 . Outline or outer face (Figs. 6, 7).

In order to achieve the aforementioned positive fit, the joint stubs 20 , 21 have a circumferential detent element 30 which points radially outward from the outer side of the joint stubs, or according to the annular flange A form that is integrally constructed with the joint stubs 20 , 21 . The joint stubs 20 , 21 are preferably made of aluminium or an aluminium alloy and in this respect are constructed in conformity with the material of the heat exchanger 12 .

The latching element 30 corresponds to the two latching counterparts 31 , 32 which are assigned to the receiving elements 24 , 25 and point radially inward. The latch counterparts 31 , 32 are formed here by clamping elements 33 that can be fastened to the base parts 24 a , 25 a of the receiving elements 24 , 25 and that in the assembled state at least partially surround the connector stubs 20 , 21 (in particular See Figure 7-10). Both the base parts 24a, 25a and the clamping part 33 are preferably produced from plastic, further preferably according to a plastic injection molding process.

According to FIG. 10 , the clamping part 33 comprises a spring-elastically constructed, arcuate base body 34 , which is formed by a central arcuate section 34a and an arcuate foot 34b that engages on the central arcuate section at both ends, 34c composition. One of the latching counterparts 31 , 32 is formed on the free ends of each of the bow legs 34b, 34c, which are arranged opposite one another in a pliers-like manner and point towards each other.

In the assembled state of the clamping part 33 with the base parts 24 a , 25 a of the receiving elements 24 , 25 , the arcuate base body 34 of the clamping part 33 is guided displaceably in the guide grooves 36 transversely to the longitudinal direction of the receiving elements 24 , 25 . , the guide grooves are formed in the outer sides of the walls 35 of the base parts 24a, 25a. Here, the latch counterparts 31, 32 pass through corresponding openings 37, 38 in the walls 35 of the base parts 24a, 25a (FIGS. 8-10). According to the direction arrow 28 in FIG. 5 , if the receiving elements 24 , 25 are inserted axially on the joint stubs 20 , 21 , then the latching element 30 is locked due to the suitable inclination formed on the latching element. The mating parts 31 , 32 together with the arcuate legs 34 b , 34 c are radially away from each other or spread out from the said arcuate legs 34 b , 34 c and are then positioned behind the latching mating parts 31 , 32 , whereby the latching mating The parts then spring back and thus fix the joint stubs 20 , 21 on the receiving elements 24 , 25 in the axial direction. During the axial displacement of the receiving elements 24 , 25 onto the connecting stubs 20 , 21 , the annular seals 29 of the receiving elements 24 , 25 and the connecting stubs 20 , 21 are simultaneously in a fluid-tight operative connection ( FIGS. 6 , 7 ) .

For possible release of this form fit between the latching element 30 and the latching counterparts 31 , 32 or between the connector stubs 20 , 21 and the receiving elements 24 , 25 , the arcuate shape of the clamping part 33 is The base body 34 can be transferred from the first operating state "I" into the second operating state "II" ( FIGS. 6 , 7 , 11 ). The first operating state “I” corresponds to the base state of the clamping element 33 in which the central segment 34a of the segment-shaped base body 34 is radial to the outer contour of the base parts 24a, 25a of the receiving elements 24, 25. They are arranged at a distance and the latch counterparts 31 , 32 are in the latched state with respect to the latch elements 30 of the joint stubs 20 , 21 in the manner described above.

Due to the preferably manual application of a force "F" on the joint stubs 20 , 21 in the radial direction on the intermediate arcuate section 34 a ( FIG. 12 ), it is possible from the first operating state “I”, or the arcuate base body 34 . The basic state transitions into the second operating state “II” in which the central arcuate section 34a of the arcuate base body 34 comes into contact with or is close to the outer contour of the receiving elements 24 , 25 . The two arcuate legs 34b , 34c adjoining the central arcuate section 34a of the arcuate base body 34 and carrying the latching counterparts 31 , 32 respectively form a ramp 39 , 40 (see in particular FIG. 10 ). The ramps 39 , 40 are supported here on the base parts 24 a , 25 a of the receiving elements 24 , 25 or on at least one support bridge 41 formed inside the guide grooves 36 of the base parts 24 a , 25 a in such a way that due to the clamping When the element 33 is moved from its first operating state "I" into its second operating state "II", the latching counterparts 31 , 32 move radially away from each other or expand and cause the latching The mating portion is released from the latching elements 30 of the joint short tubes 20 and 21 ( FIG. 12 ). Next, the receiving elements 24 , 25 can be withdrawn from the joint stubs 20 , 21 in the axial direction against the direction arrow 28 shown in FIG. 6 .

List of reference signs

1 vehicle

2 electric motors

3 Battery pack

4 battery case

5 Battery bracket

5a Bottom of bracket

5b Bracket Wall

6 Cover element

7 End side (bracket wall 5b)

8 centering pins

9 battery cell module

10a module set

10b module set

11 Assembly unit

12 Heat Exchanger

13 First module bracket

14 Second module bracket

15 feet (module brackets 13, 14)

16 Fastening holes

17 Fastening screws

18 screw heads

19 Nuts

20 Joint short pipe (inflow part)

21 Joint short pipe (return part)

22a Pipe section (inflow)

22b Pipeline section (return section)

23a Pipe section (inflow)

23b Line section (return section)

24 Receiver element

24a Fundamentals

25 Receiver element

25a Fundamentals

26 Coupling elements

27 Coupling elements

28 Directional Arrows

29 Ring seal

30 locking element

31 Lock mating part

32 Lock mating part

33 Clamps

34 Matrix

34a Middle arcuate section

34b bow feet

34c bow feet

35 walls

36 Guide groove

37 Openings

38 openings

39 slopes

40 slopes

41 Support bridge

"α" angle

"I" first working state (clamping part 33)

"II" Second working state (clamping part 33)

"F" force

Claims (9)

1. Battery assembly (3), comprising a battery carrier (5) of a battery housing (4) forming a base, two or more battery cell modules (9) being fastened to the battery carrier (5) and being electrically coupled to one another, wherein at least one heat exchanger (12) is arranged between two adjacent battery cell modules (9), which is connected or connectable in a fluid-tight manner by means of at least one inlet connector stub and at least one return connector stub (20, 21) to an assigned receiving element (24, 25) of a fluid line of a fluid circuit within the battery housing (4), and wherein the connector stubs (20, 21) together with the receiving elements (24, 25) form a releasable quick-action connection,

wherein the connecting stubs (20, 21) are each of tubular design and are inserted or insertable into tubular receiving elements (24, 25) of the assigned fluid line and are connected or connectable to one another in a form-fitting manner;

wherein, in order to achieve the form-locking of the respective connector stub (20, 21), a circumferential latching element (30) which is directed radially outward from the outer side of the connector stub is formed, which latching element corresponds to a latching counterpart (31, 32) which is assigned to the receiving element (24, 25) and which is directed radially inward,

wherein the latch partners (31, 32) are formed by a clamping element (33) which can be fastened to a base part (24a, 25a) of the receiving element (24, 25) and which, in the assembled state, at least partially surrounds the terminal stub (20, 21), the clamping element (33) comprising a spring-elastically formed, arcuate base body (34) which is formed by an intermediate arcuate section (34a) and arcuate legs (34b, 34c) which engage on the intermediate arcuate section at both ends, wherein one of the latch partners (31, 32) is formed on the free end of each arcuate leg (34b, 34c) in each case,

wherein, in the assembled state, the arcuate base body (34) of the clamping piece (33) is transverse to the longitudinal direction of the receiving elements (24, 25),

wherein an arcuate base body (34) of the clamping part (33) is guided in a guide groove (36) of the base part (24a, 25a) in a movable manner transversely to the longitudinal direction of the receiving element (24, 25), i.e. from a first operating state "I", which corresponds to the base state, in which an intermediate arcuate section (34a) of the arcuate base body (34) is arranged radially spaced apart from the outer contour of the base part (24a, 25a) of the receiving element (24, 25) and the latching engagement (31, 32) is in a latching state in which the intermediate arcuate section (34a) of the arcuate base body (34) latches into the latching element (30), to a second operating state "II", in which the intermediate arcuate section (34a) of the arcuate base body (34) abuts against or is close to a counterpart of the receiving element (24, 25), 25) Of the base parts (24a, 25a), and

wherein the two arcuate legs (34b, 34c) each form a ramp (39, 40) which engages over the central arcuate section (34a) of the arcuate base body (34) and carries the latching partners (31, 32), wherein the ramps (39, 40) are supported on the base parts (24a, 25a) of the receiving elements (24, 25) in such a way that: as a result of the clamping element (33) being moved from its first operating state "I" into its second operating state "II", the latching partners (31, 32) are moved away from one another in the radial direction and the latching of the latching partners with the latching elements (30) of the connector stubs (20, 21) is released.

2. Accumulator assembly (3) according to claim 1, characterized in that the latching element (30) is constructed in one piece with the junction stub (20, 21).

3. Accumulator assembly (3) according to claim 1, characterized in that the snap-on counterparts (31, 32) are arranged opposite one another in a pincer-like manner and are directed towards one another and, in the assembled state of the clamping piece (33) with the base section (24a, 25a) of the receiving element (24, 25) and the connector stub (20, 21), penetrate through a respective opening (37, 38) in the wall (35) of the base section (24a, 25a) of the receiving element (24, 25) and fix the connector stub (20, 21) in the axial direction on the receiving element (24, 25).

4. Accumulator assembly (3) according to any one of claims 1 to 3, characterized in that the junction stub (20, 21) is arranged directed away from the accumulator carrier (5) at an angle "a".

5. Accumulator assembly (3) according to claim 4, characterized in that said angle "a" is selected from the range from 10 ° to 30 °.

6. Accumulator assembly (3) according to claim 5, characterized in that said angle "a" is 15 °.

7. Battery assembly (3) according to one of claims 1 to 3, 5 to 6, characterized in that the at least one heat exchanger (12) is constructed plate-like.

8. Vehicle (1) having a battery assembly (3) according to any one of claims 1 to 7.

9. Vehicle (1) according to claim 8, characterized in that the vehicle (1) is a hybrid vehicle or an electric vehicle.

Images