DE102011003535A1 - tensioning devices - Google Patents

Abstract

The present invention relates to a device for clamping an electrochemical energy storage module (1) with a cooler (5) having at least one heat transfer surface for transferring heat energy, and wherein the energy storage module has at least one contact surface for applying the heat transfer surface and at least two module carrier (12) which are arranged on two opposite sides of the energy storage module. The device has a clamping plate (15) with at least two connecting elements (18) arranged at opposite ends of the clamping plate for connecting the clamping plate to the module carriers, wherein the clamping plate is designed to partially surround the cooler and a clamping force to at least partial areas of a exert from the heat transfer surface side facing away from the radiator when the clamping plate is connected to the module carriers.

Description

The present invention relates to a device for clamping an electrochemical energy storage module with a cooler, an energy storage device, and to a method for producing an energy storage device according to the main claims.

In order to ensure the longevity of a battery during charging, discharging or storage and to ensure its optimum performance during operation, it is necessary to keep the battery within a defined temperature range, so that the battery is neither too hot nor too cold. For this purpose, the battery or a stack is equipped with a cooler or a heater, which causes or maintains the optimum battery temperature. The cooler, however, develops its maximum effectiveness only with its optimal connection to the battery.

It is the object of the present invention to provide an improved device for clamping, an electrochemical energy storage module with a cooler, an improved energy storage device, and an improved method for producing an energy storage device.

This object is achieved by a device for clamping an electrochemical energy storage module with a cooler, an energy storage device, and a method for producing an energy storage device according to the main claims.

The present invention is based on the finding that clamping devices with different clamping concepts can be used for connecting a battery cooler to a battery. Furthermore, interface materials can be used, which reduce the heat transfer resistance between radiator and battery or increase the usable cooling area, in order to achieve an optimal connection between radiator and battery. A thermally optimal connection of a cooling plate to the battery can be achieved by a uniform distribution of contact pressure. For this purpose, plastically preformed or pre-bent means can be used in order to be able to apply a surface-distributed force in one plane.

Advantageously, a reduction of a heat transfer resistance between an energy storage module and a temperature control unit can be achieved by using a bracing device as presented here. As a result, complex work steps, such as soldering or welding, as well as gluing can be superfluous. Reducing labor costs can result in lower production costs.

The present invention provides a device for clamping an electrochemical energy storage module with a cooler, which has at least one heat transfer surface for transferring heat energy and wherein the energy storage module has at least one contact surface for applying the heat transfer surface and at least two module carrier, which arranged on two opposite sides of the energy storage module are. In this case, the clamping device has a clamping plate with at least two connecting elements arranged at opposite ends of the clamping plate for connecting the clamping plate to the module carriers, the clamping plate being designed to partially enclose the cooler and a clamping force to at least partial regions of the heat transfer surface exert the opposite side of the radiator when the clamping plate is connected to the module carriers.

An electrochemical energy storage module can be understood to mean a device that can convert electrical energy into chemical energy by an electrochemical reaction and store it, and / or convert chemical energy stored in the reverse electrochemical reaction into electrical energy, and convert it to at least two electrical energy Can provide contacts. For example, an electrochemical energy storage module may be a battery or a rechargeable battery. The electrochemical energy storage module may comprise a one-piece housing or a multi-part housing, which may have at least one contact surface, which is suitable for mounting a cooler. The housing may have stiffening elements to achieve increased stability of the housing. Stiffening elements may be, for example module carrier. Under a cooler, a device can be understood that absorb and dissipate thermal energy or can supply and deliver. For example, the cooler may be a heat exchanger. The cooler may have at least one heat transfer surface to be disposed on the electrochemical energy storage module. Under a clamping plate can be understood a flat component, which may have an extension from a first module carrier to a second module carrier. A size of the clamping plate can essentially correspond to a size of the contact surface. The clamping plate may have recesses for compensating for irregularities of the radiator. A connecting element may be a device for connecting the clamping plate to one of the module carriers. The connection can be made by material connection, positive locking and additionally or alternatively via adhesion. When connecting a clamping force can be exerted on the clamping plate, which can exert the clamping plate at least partially normal to the contact surface as a clamping force on the radiator. According to the invention, the term "two module carriers" can also be understood to mean a one-piece module which has two module carriers, which are arranged on two mutually opposite sides of the energy storage module.

According to one embodiment of the present invention, the connecting elements of the clamping plate may have a biasing force directed against the pre-bending, when the clamping plate is not connected to the module carriers. Further, the clamping plate can evenly distribute the clamping force on the radiator or portions of the radiator when the clamping plate is connected to the module carriers. By a pre-bend, a plastic deformation can be understood, so that the ends of the clamping plate are bent away from the energy storage module when the clamping plate is not connected to the module carriers. When the tension plate is connected to the module brackets, a spring force counteracting elastic deformation of the pre-bend can enhance the bracing force, and at the same time, uniformly force the bracing force on the radiator. In this case, the clamping plate can be in direct or indirect contact with the radiator.

According to a further embodiment, the device may comprise at least one clamping body for arranging between the radiator and the clamping plate. A clamping body can be understood as a pressure element which can transmit the clamping force from the clamping plate to the cooler when the clamping plate is connected to the module carriers. In this case, a clamping body deflect the clamping plate out of a plane in order to bring about the clamping force of the clamping plate, the clamping force for the clamping element. Furthermore, according to the invention, a tensioning body can also be understood as meaning a push-in tensioning body, a tensioning slide, a clamping block, a clamping wedge, an oval bar or an equivalent embodiment.

In this case, a state of the clamping body can be changed from a first state to a second state, wherein the clamping body in the first state exerts a lower clamping force on the radiator or portions of the radiator than in the second state when the clamping plate is connected to the module carriers. Under a first state, a state during assembly can be understood. Under a second state, a strained state can be understood. For example, the clamping body in the second state, at least normal to the radiator have a greater extent than in the first state. As a result, the clamping plate can be elastically stretched and exert an increased clamping force in the clamping plate a larger clamping force on the radiator, as when the clamping body is in the first state.

Furthermore, the clamping body can have at least one point of force application for changing the clamping body from the first state to the second state. Additionally or alternatively, the clamping body may comprise a latching device, which is designed to allow a change of the clamping body from the first state to the second state and to prevent a return from the second state to the first state. A force application point can be understood as meaning a means for moving at least part of the clamping body. In this case, the movement can be translational and / or rotational. The force application point may take various forms. For example, a tab, a bridge, a plate, a head or a gear. The force application point can transmit the movement to the tensioning body. A latching device can be understood to mean a shape on the clamping body which, in interaction with surrounding edges and / or surfaces, prevents an independent state change. For example, a latching device may be a snap spring, a cotter pin, or a fuse wire. Likewise, the latching device may briefly have a greater extent normal to the radiator during a latching, as in the second state. As a result, a state change back to the first state can be inhibited by a necessary activation force.

The clamping body can be designed to distribute the clamping force uniformly on the radiator or portions of the radiator when the clamping plate is connected to the module carriers. For example, a single clamping body via a continuous deflection effect a planar distribution of the clamping force. Likewise, a plurality of clamping bodies via a respective deflection of the clamping plate on each one of the clamping body cause a uniform distribution of the clamping force on the plurality of clamping bodies. By varying a degree of deflection, the clamping force can also be distributed unevenly.

In a further embodiment, the clamping body may have a device for receiving a heating element. A heating element may be a means for supplying thermal energy. For example, the heating element may be a heating wire. As a result, heat energy can be supplied to the energy storage module when the cooler does not emit energy.

Furthermore, the invention also provides an energy storage device with a cooler, with at least one heat transfer surface for transferring heat energy. Furthermore, the energy storage device comprises an energy storage module with at least one contact surface for applying the heat transfer surface and at least two module carriers, which are arranged on two opposite sides of the energy storage module, wherein the cooler is arranged on the contact surface. Furthermore, the energy storage device has a device for clamping the electrochemical energy storage module with the cooler according to an embodiment of the invention, wherein the connecting elements are connected to the module carriers, and the clamping plate surrounds the cooler at least partially and the clamping plate a clamping force on at least portions of a heat transfer surface exerted side of the radiator.

In this case, between the cooler and the energy storage module, an intermediate material may be arranged, which compensates for unevenness of the heat transfer surface and additionally or alternatively the contact surface via a plastic and additionally or alternatively an elastic deformation. An intermediate material may be understood to mean an interface material, that is to say a means for lowering a heat transfer resistance. For example, the interface material may increase a contact area between the radiator and the energy storage module. The interface material can have good heat conduction properties. As a result, the interface material can form thermal bridges within the bumps and thereby reduce the heat transfer resistance.

Furthermore, the invention comprises a method for producing an energy storage device, comprising a step of providing a cooler, with at least one heat transfer surface for transferring heat energy. Furthermore, the method comprises a step of providing an energy storage module with at least one contact surface for applying the heat transfer surface and at least two module carriers, which are arranged on two opposite sides of the energy storage module. Furthermore, the method comprises a step of providing a device for clamping an electrochemical energy storage module with a cooler, with a clamping plate with at least two opposing connecting elements for connecting the clamping plate to the module carriers, wherein the clamping plate is designed to enclose the cooler part of the circumference, and a Apply clamping force on at least portions of a side remote from the heat transfer surface side of the radiator, when the clamping plate is connected to the module carriers. The method also includes a step of placing the radiator on the energy storage module with the heat transfer surface applied to the abutment surface. Furthermore, the method comprises a step of connecting the connecting elements to the module carriers in order to partially enclose the cooler with the clamping plate, and to exert a clamping force on at least partial regions of a side of the cooler facing away from the heat transfer surface.

Advantageous embodiments of the present invention will be explained below with reference to the accompanying drawings. Show it:

1 a schematic two-dimensional representation of the assembly battery;

2 a spatial representation of a battery with module carrier;

3 a spatial representation of a battery with laminated plate cooler;

4 a spatial representation of a battery with extrusion profile cooler;

5 a spatial representation of a battery with cooler and tensioning device;

6 a spatial representation of a tension of a battery with radiator on clamping body;

7 a spatial representation of a tension of a battery with radiator module carrier with integrated bracing device;

8th a spatial view of a battery with cooler and recessed clamping device;

9 a spatial representation of a battery with cooler and slot-strap clamping;

10 a spatial representation of a tension of a battery with radiator on insert clamping body;

11 a spatial representation of a tension of a battery with radiator on articulated insert clamping body;

12 a spatial representation of an articulated insert clamping body;

13 a spatial representation of a coherent articulated insert clamping body;

14 a spatial representation of a battery with unstrained cooler and bracing device with Spannschiebern;

15 a spatial representation of an unstressed tensioning device with Spannschiebern;

16 a spatial representation of a battery with strained radiator and bracing device with Spannschiebern;

17 a spatial representation of a battery with unstressed radiator and bracing device with Spannquerer;

18 a spatial representation of a clamping cuboid;

19 a detail of a cross section of a battery with unstressed radiator and bracing device with clamping box;

20 a spatial representation of a battery with strained radiator and bracing device with clamping box;

21 a detail of a cross section of a battery with strained cooler and bracing device with clamping box;

22 a detail of a three-dimensional representation of a battery with cooler and bracing device with clamping cubes and alternative end of the clamping box;

23 a section of a cross section of a battery with unstrained cooler and bracing device with clamping cuboid and resilient element;

24 a detail of a cross section of a battery with strained radiator and bracing device with clamping cuboid and resilient element;

25 a spatial representation of a battery with cooler and tensioning device with clamping wedge and wedge tensioner;

26 a spatial representation of a clamping wedge and wedge tensioner;

27 a detail of a cross section of a battery with unstressed cooler and tensioning device with clamping wedge and wedge tensioner;

28 a detail of a cross section of a battery with strained cooler and tensioning device with clamping wedge and wedge tensioner;

29 a spatial representation of a battery with cooler and tensioning device with clamping wedge plate;

30 a section of a cross section of a battery with unstrained cooler and tensioning device with clamping wedge plate;

31 a spatial view of a battery with unstressed radiator and bracing device with oval rod;

32 a detail of a longitudinal section of a battery with unstressed radiator and bracing device with oval rod;

33 a spatial representation of a battery with strained radiator and bracing device with oval rod and cotter pin;

34 a section of a longitudinal section of a battery with strained cooler and bracing device with oval rod;

35 a spatial representation of a battery with unstrained cooler and bracing device with elastic tension mat;

36 a spatial representation of various elastic clamping mats;

37 a detail of a plan view of a battery with unstressed cooler and bracing device with elastic tensioning mat;

38 a detail of a plan view of a battery with strained cooler and bracing device with elastic tensioning mat;

39 a detail of a plan view of a battery with unclamped radiator and bracing device;

40 a detail of a plan view of a battery with strained cooler and bracing device;

41 a detail of a plan view of a battery with strained cooler and bracing device with contiguous clamping body;

42 a spatial representation of a battery with unstressed radiator and bracing device with Aufstell-clamping plate;

43 a spatial representation of different Aufstell-clamping plates;

44 a section of a three-dimensional view of a battery with unstressed radiator and bracing device with Aufstell-clamping plate;

45 a detail of a plan view of a battery with unstressed radiator and bracing device with Aufstell-clamping plate;

46 a section of a three-dimensional view of a battery with strained cooler and bracing device with Aufstell-clamping plate;

47 a detail of a plan view of a battery with strained cooler and bracing device with Aufstell-clamping plate;

48 a detail of a plan view of a battery with cooler and bracing device with resilient element;

49 a detail of a plan view of a battery with cooler and bracing device with expanding material;

50 a spatial view of a battery with cooler and bracing device with elastic plug;

51 a spatial view of an elastic plug mat;

52 a detail of a plan view of a battery with unstressed cooler and bracing device with elastic plug;

53 a detail of a plan view of a battery with strained cooler and bracing device with elastic plug;

54 a detail of a plan view of a battery with strained cooler and bracing device with elastic plug and resilient element;

55 a spatial view of an elastic plug mat as an extrusion part;

56 a schematic two-dimensional representation of the assembly battery with adapter or gill plate;

57 a spatial representation of a fitting or gill plate;

58 a spatial representation of a section of a fitting or gill plate;

59 a spatial representation of a section of an alternative adapter or gill plate;

60 a spatial representation of a section of an alternative adapter or gill plate;

61 a spatial representation of a section of an alternative adapter or gill plate;

62 a spatial representation of a section of an alternative adaptation or knobs / embossing plate;

63 a spatial representation of a section of an alternative adaptation or knobs / embossing plate; and

64 a spatial representation of a section of an alternative adaptation or nubs / embossing plate.

In the following description of the preferred embodiments of the present invention, the same or similar reference numerals are used for the elements shown in the various drawings and similar, and a repeated description of these elements will be omitted. For a complete list of reference numerals, a list of reference numerals is attached.

1 shows a schematic two-dimensional representation of the assembly battery and 2 a spatial representation of a corresponding battery with module carrier.

The battery 1 consists essentially of one or more battery stacks 1 which are in series and / or parallel electrically interconnected 3. The stacks 1 can be arranged side by side, behind or one above the other. The battery 1 and / or the stack 1 can with other electronic components 4 be equipped. The battery 1 is usually from a housing 13 enclosed. The stack 1 consists essentially of a plurality of successively arranged cells 2 , which are electrically interconnect 3. To the cell composite of the stack 1 The stack can be grasped and positioned 1 with a module carrier 12 be provided, which holds the cell composite as possible in the x-, y- and z-direction. The module carrier 12 can for example have a basket-like shape or from external plates or Pressure bodies are made up of the cells 2 hold over threaded rods.

To the battery 1 Keep in a defined temperature range, the battery will 1 or the stack 1 with a radiator or heater 5 equipped, which causes or maintains the optimum battery temperature. The cooler 5 flows through air, cooling or refrigerant, but usually coolant.

3 shows a three-dimensional view of a battery with laminated heat sink and 4 a spatial representation of a corresponding battery with Extrusionsprofil cooler.

The cooler 5 can be designed in different ways. Common is a all-aluminum cooler 5 , which, for example, by laminations 6 or extrusion profiles 7 is formed. In the case of extrusion profiles 7 z. B. flat tubes are doing this at the ends of collecting tanks 8th caught. The extrusion profiles 7 can be spaced apart from each other. The cooler 5 can be a cover or stiffening sheet 9 have, which on the top and / or bottom of the radiator 5 is attached. The cooler 5 is via lines 10 supplied with the coolant. The cooler 5 can also use electrical heating components 11 z. B. heating wire to the coolant and / or the battery 1 to warm up.

In principle, a stack 1 with a plurality of coolers 5 be equipped by the radiator 5 for example, between the individual cells 2 be introduced. In general, the stack is 1 or the battery 1 but only with a cooler 5 then placed above or below or on the sides of the stack 1 is attached flat. Shown is the second case. The cooler 5 stands in direct or indirect contact with the outer skin of the cells 2 ,

To get the best possible effectiveness of the radiator 5 In operation, it is necessary to increase the thermal resistance between radiator 5 and stack 1 to reduce. For this purpose, a cohesive connection of the two components would be best suited, but this is usually not practical in real applications. The presented approach therefore sees a tension 14 the radiator 5 against the battery / stack 1 before, with sufficiently high pressure and a uniform distribution of the same to the joint surfaces, the surface unevenness and roughness of the two joining partners are balanced to the largest possible and, from a thermal point of view, high-quality contact between radiator 5 and stack 1 manufacture. In this case, the space requirement of the Verspannmechanismus 14 to be as low as possible. The same applies to the production costs and assembly costs.

In the following illustrations of the bracing devices 14 For the sake of simplicity, it will be the radiator 5 always as extrusion profile cooler 7 . 5 shown. However, the device presented here can in principle any cooler 5 regardless of design and construction. For reasons of clarity, the presentation of collection boxes is used 8th and wires 10 waived. Also show the illustrations of the radiator 5 consistently the bottom of the battery 1 as the joint of the radiator 5 , The variants, designs and bracing regulations, however, are not limited to this application.

5 shows a three-dimensional view of a battery with cooler and tensioning device and 6 a spatial representation of a tension of a corresponding battery with radiator on clamping body.

The bracing device 14 here is a flexible, elastic strap 15 or clamping plate 15 This consists for example of aluminum or steel, preferably spring steel. Also a plastic is conceivable. The clamping plate 15 contacts the radiator 15 or the clamping body 16 s. below and gets energized with the module carrier 12 or the housing 13 connected, so the cooler 5 doing against the battery 1 is pressed. The connection of the bracing device with the module carrier or the housing 18 can be produced cohesively by welding or soldering or by screwing, riveting or insertion. Even a positive hooking / hooking or clipping is conceivable.

The cooler 5 itself can do this with clamping bodies 16 be carried out, over which the clamping pressure on the radiator 5 is initiated. The clamping bodies 16 rise up to the radiator at regular intervals 5 , and depending on the position on the radiator 5 be executed at different heights. It can be in the central area of the radiator 5 attached clamping body 16 be increasingly higher than the outside, to a uniform pressure distribution on the radiator 5 outside How to reach the center.

Is it the radiator 5 around a cooler 7 . 5 with several extrusion profiles z. B. flat tubes, and these are spaced from each other and a cover plate 9 interconnected s. 5 and 6 , can the clamping body 16 between the extrusion profiles 7 on the cover plate 9 be applied so that the clamping body 16 also the function of a spacer element 16 if they can handle the extrusion profiles 7 to contact. The clamping bodies 16 may be made of plastic or metal, for example. Are extrusion profile 7 , Cover plate 9 and clamping body 16 made of aluminum, they can be soldered together in a suitable manner. The clamping bodies 16 can recesses or holes 17 have, as recordings for heating elements 17 such as an electric heating wire serve.

7 shows a spatial representation of a tension of a battery with radiator on module carrier with integrated bracing device. module carrier 12 and bracing device 14 are a part 19 , preferably a sheet. So the battery 1 the clamping forces of the module carrier with integrated bracing device 19 can absorb, without affecting the location of the battery 1 is impaired, has the module carrier with integrated bracing device 19 via an elastic-flexible suspension hook 20 , which on the cooling plate 5 opposite side of the battery 1 is connected and held with this by hanging, with a pronounced elastic deformation of the suspension hook 20 in this assembly step, which sets a permanent distortion of the radiator 5 with the battery 1 causes.

8th shows a three-dimensional view of a battery with cooler and recessed clamping device. The bracing device 14 has recesses 22 on, creating a plurality of bracing strips 23 in the bracing device 14 is formed. This allows the different pressures of the radiator occurring in the joint area 5 against the battery 1 due to the locally varying unevenness of the mating surface of the radiator 5 and / or the joining surface of the battery 1 result, more individual and thus more accurate when tensioning the bracing strip 23 can be adjusted so that unwanted pressure fluctuations can be reduced. The bracing device 14 has exemplary holes for screwing 21 with the module carrier 12 or the housing 13 so that when tightening the bracing device 14 is energized, and due to the radiator 5 against the battery 1 is pressed.

9 shows a three-dimensional view of a battery with cooler and slot-strap clamping. The bracing device 14 has a plurality of openings / slots 24 on. The module carrier 12 has a plurality of tabs 25 on. The assembly process can take place in several steps. When tensioning the radiator 5 against the battery 1 become the tabs 25 in the openings / slots 24 plugged. The tabs 25 are then bent in the clamping direction by up to 180 °. At the tabs 25 is pulled in the tensioning direction, so that the bracing device 14 against the radiator 5 is pressed. The elastically and plastically deformed straps 25 while maintaining the tension with the module carrier 12 connected, reducing the compressive stress between radiator 5 and battery 1 permanently "frozen".

10 shows a spatial representation of a tension of a battery with radiator on insert clamping body. module carrier 12 and bracing device 14 or housing 13 and bracing device 14 are first firmly connected here, but not under increased tension. The bracing of the radiator 5 with the stack 1 by means of bracing device 14 happens belatedly by the slide-in tension body 26 in the gap 27 between cooler 5 and bracing device 14 be introduced. By adjusting the height of the tension body 26 the height of the gap 27 exceeds, arises when pushing the required compressive stress. The clamping bodies 26 can also be here either directly over the radiator 5 act, or over a cover plate 9 if, for example, the extrusion profiles 7 the radiator 5 spaced apart from each other. Accordingly, under the name gap 27 the space between the bracing device 14 and coolers 5 or the space between the bracing device 14 and cover plate 9 be understood.

11 shows a spatial representation of a tension of a battery with radiator on articulated insert clamping body and 12 a spatial representation of an articulated insert clamping body. 13 shows a spatial representation of a coherent articulated insert clamping body.

The defined here insert-clamping body 28 is called articulated insert clamping body 28 designated. He will come with a variety of instep shoes 29 and tension shoe connectors 30 and a connecting rail 31 executed. The tension shoe connector 30 connects tension shoe 29 and connecting rail 31 , The assembly process can take place in two steps. The tension shoes 29 be in the recesses 22 the bracing device 14 perpendicular to the radiator 5 in the gap 27 introduced. Then the tension shoes 29 in the gap 27 between cooler 5 and the tin 15 the bracing device 14 horizontal to the radiator 5 inserted. The connecting rail 31 serves as a holding element.

By adjusting the height of the spinal shoes 29 the height of the gap 27 exceeds, arises when pushing the required compressive stress. The distance between the tension shoe 29 and connecting rail 31 exceeds the sheet thickness 15 the bracing device 14 , There may be a plurality of articulated insertion clamping bodies 28 intended to ensure a uniform compressive stress. The individual articulated insert clamping body 28 can be connected to each other, or ultimately just be a coherent part, so that the connecting rail 31 as a connection plate 32 can be designated. On the described elements elevations and depressions (not shown) can be provided, which is a locking of the articulated insert clamping body 28 in the cooler 5 or in the bracing device 14 brought about during assembly, so that unintentional release of the insert clamping body 28 is prevented. The articulated insert clamping body 28 can be made of a metal or a plastic.

14 shows a three-dimensional view of a battery with unstressed cooler and tensioning device with Spannschiebern. 15 shows a spatial representation of an unstressed tensioning device with Spannschiebern. 16 shows a three-dimensional view of a battery with strained cooler and bracing device with Spannschiebern.

Again, before the actual bracing the bracing device 14 with the module carrier 12 be joined and connected. Instead of a plug-in clamping body is doing a cocking slide 33 used for clamping. The cocking slide 33 is essentially a flat or wavy thereby spring tension during insertion or profiled sheet 33 , The cocking slide 33 is over a slot 24 in the bracing device 14 incorporated into this. The cocking slide 33 gets into the slot 24 the bracing device 14 in the gap 27 inserted. By adjusting the height of the cocking slide 33 the height of the gap 27 exceeds, arises when pushing the required compressive stress.

The cocking slide 33 may have at the respective ends of thickening or widening or curved portions, a release of the cocking slide 33 from the bracing device 14 before and / or after bracing the radiator 5 prevent. There may be a plurality of Spannschiebern 33 be provided. The cocking slide 33 can be connected. The bracing device 14 . 34 z. B. as a sheet metal can also be a corrugated or profiled contour 34 have, for example, the insertion of clamping bodies 26 . 28 or clamping slides 33 or other subsequently introduced clamping elements to facilitate and / or even to achieve a resilient and thus tensioning effect.

17 shows a three-dimensional view of a battery with unclamped cooler and bracing device with clamping cubes. 18 shows a spatial representation of a Spannquaders. 19 shows a section of a cross section of a battery with unclamped cooler and bracing device with clamping cubes. 20 shows a spatial representation of a battery with strained radiator and bracing device with clamping cuboid. 21 shows a section of a cross section of a battery with strained cooler and bracing device with clamping cubes. 22 shows a section of a three-dimensional representation of a battery with cooler and bracing device with clamping cubes and alternative end of the clamping box.

Instead of a slide-in clamping body or a cocking slide, a clamping cuboid 35 used for clamping. The tension cuboid 35 is essentially a rectangle rod. At the two ends of the cube 36 can one from the center piece of the rod 37 deviating form. The tension cuboid 35 will mount between the bracing device 14 and the radiator 5 positioned. The centerpiece of the cube 37 is rectangular in cross-section. Thus, it has a long here 38 and a short one 39 Page up. In the relaxed state is the short side 39 the center piece of the cube 37 orthogonal to the radiator 5 , This short page 39 is less than or equal to the distance between the bracing device 14 and coolers 5 what the height of the gap 27 corresponds, or between bracing device 14 and a cover plate 9 the radiator 5 ,

The long side 38 is greater than the distance between the bracing device 14 and coolers 5 what a height of the gap 27 corresponds, or between bracing device 14 and a cover plate 9 the radiator 5 , Will the jig 35 now turned 90 ° so that the long side of the center piece of the jig 38 orthogonal to the radiator 5 stands, braces the tension cuboid 35 the cooler 5 against the bracing device 14 and the radiator 5 will therefore be against the battery 1 pressed. A "snapping back" or automatic turning back of the square jaw 35 in the untensioned state is prevented due to its rectangular cross-sectional shape. The corners of the cube can be rounded or set. The end piece of the cube 36 which is above the actual stack 1 protrudes, may have a special shape or geometry to the rotation of the clamping cube 35 to facilitate mechanically during the clamping process or to simplify it mechanically.

If, for example, the radiator 5 through extrusion profiles 7 is formed and these are spaced apart and the extrusion profiles 7 with a cover plate 9 connected, the clamping cuboid 35 between the extrusion profiles 7 be introduced. This reduces the overall height of the radiator 5 including tensioning device 14 , and is often sought for reasons of limited space. The end piece of the cube 36 can be shaped so that in the tensioned state, on the one hand, the height of the gap 27 not or only slightly surmounted, and on the other hand with the two adjacent extrusion profiles 7 Approximately contacted to the clamping cuboid 35 permanent positioning. It can have a number of clamping blocks 35 be provided.

23 shows a section of a cross section of a battery with unclamped cooler and bracing device with clamping cuboid and resilient element. 24 shows a section of a cross section of a battery with strained cooler and bracing device with clamping cuboid and resilient element.

The tension cuboid 35 be between the extrusion profiles 7 installed. In addition, a resilient element 40 z. B. wavy or profiled spring steel, in the space 27 brought in. The springy element 40 is located between clamping cuboid 35 and coolers 5 on the one hand and bracing device 14 on the other hand and contacted at least the clamping cuboid 35 and the bracing device 14 , When tensioning the tensioner 35 , ie the 90 ° twist of the same, deforms the resilient element 40 elastic and in the form that the resilient element 40 over the bracing device 14 against the radiator 5 is tense, which in turn against the battery 1 is pressed.

25 shows a three-dimensional view of a battery with chuck and tensioning device with clamping wedge and wedge tensioner. 26 shows a spatial representation of a clamping wedge and wedge tensioner. 27 shows a section of a cross section of a battery with unclamped cooler and tensioning device with clamping wedge and wedge tensioner. 28 shows a section of a cross section of a battery with strained cooler and bracing device with clamping wedge and wedge tensioner.

The exciting element in this design is not a slide-in clamping body, cocking slide or clamping cube, but the complementary components clamping wedge 41 and wedge tensioner 42 , The one or more clamping wedges 41 be in the gap 27 introduced and contact on the one hand the radiator 5 and on the other hand, the wedge tensioner 42 , The wedge tensioner 42 again, on the one hand contacts the clamping wedges 41 and on the other hand, the bracing device 14 , The wedge tensioner 42 is a loose component. The clamping wedges 41 are in relation to the radiator 5 positioned or connected to it. The clamping wedges 41 are essentially wedge-shaped cross-sectional shape wedge tensioners 42 is essentially a plate or sheet with wedge-shaped elevations 43 , which with the clamping wedges 41 correspond. As in the previous variants, the bracing device 14 even before the actual tension with the module carrier 12 firmly connected. Similar to one of the variants shown here, namely the cocking slide 33 , the bracing device can 14 partially slotted in the lateral area 24 be. The attachment mechanism of the wedge clamp 42 penetrates the slots 24 in the untensioned state. When clamping the wedge tensioner 42 further into the bracing device 14 inserted. The wedges of the wedge tensioner 42 and the wedges of the clamping wedge 41 Sliding along each other, so due to the wedge shape, the clamping wedges 41 against the radiator 5 be tense and the wedge tensioner 42 against the bracing device 14 is tense. The cooler 5 will therefore be against the battery 1 pressed. Once tensioned, the attachment mechanism of the wedge tensioner prevents 44 a snap back of the wedge tensioner 42 and thus the release of the tension. The wedge tensioner 42 is preferably a plastic part.

29 shows a three-dimensional view of a battery with cooler and tensioning device with clamping wedge plate. 30 shows a section of a cross section of a battery with unstressed radiator and bracing device with clamping wedge plate.

The exciting element in this design is the clamping wedge plate 45 , The clamping wedge plate 45 gets into the gap 27 introduced and contacted on the one hand the radiator 5 and on the other hand, the bracing device 14 , The clamping wedge plate 45 is a loose component. The clamping wedge plate 45 is essentially a plate or plate with wedge-shaped cross-sectional shape.

The bracing device 14 is in her the cooler 5 facing shape with the clamping wedge plate 45 compliant, and therefore has a sloping connection surface. As in the previous variants, the bracing device 14 even before the actual tension with the module carrier 12 firmly connected. Similar to one of the previous variants [cocking slide 33 ] can the bracing device 14 partially slotted in the lateral area 24 be. The fastening mechanism of the clamping wedge plate 46 penetrates the slots 24 in the relaxed state. When clamping the clamping wedge plate 45 further into the bracing device 14 inserted. The clamping wedge plate 45 thereby slides along the radiator 5 and the bracing device 14 so that due to the angular contact surface of the Clamping wedge plate 45 with the bracing device 14 the clamping wedge plate 45 against the radiator 5 and against the bracing device 14 is tense. The cooler 5 will therefore be against the battery 1 pressed. Once tensioned, the attachment mechanism prevents the clamping wedge plate 46 a snap back of the clamping wedge plate 45 and thus the release of the tension. The clamping wedge plate 45 and the bracing device 14 are made in this embodiment preferably made of plastic.

31 shows a three-dimensional view of a battery with unstressed radiator and bracing device with oval rod. 32 shows a section of a longitudinal section of a battery with unstressed radiator and bracing device with oval rod. 33 shows a three-dimensional view of a battery with strained cooler and bracing device with oval bar and cotter pin. 34 shows a section of a longitudinal section of a battery with strained radiator and bracing device with oval rod.

This variant differs from previous variants in principle only in the cross-sectional shape of the clamping element, which is in this variant of an oval shape and not rectangular. The clamping element is therefore in this embodiment as an oval rod 47 referred to and not as a jig 35 , In contrast to the clamping block 35 , which is self-locking, must be at the oval rod 47 Measures are taken, the "snapping back" or automatic turning back of the oval rod 47 in the unstressed state. These are the oval bars 47 for example, in the tensioned state with one of the oval bars 47 penetrating cotter pin 49 provided the rotation angle of the oval bars 47 freezes. The oval bars 47 can with a cooler 5 with extrusion profiles 7 either with the extrusion profiles 7 contact yourself or with spacers 48 which is between the extrusion profiles 7 be introduced and slightly exceed this. Unlike in one of the preceding variants, the clamping elements in the associated representations do not run parallel but transversely to the radiator.

35 shows a three-dimensional view of a battery with unstressed radiator and bracing device with elastic tension mat. 36 shows a spatial representation of various elastic clamping mats. 37 shows a section of a plan view of a battery with unstrained cooler and bracing device with elastic tension mat. 38 shows a section of a plan view of a battery with strained cooler and bracing device with elastic tensioning mat.

Instead of clamping body is an elastic tension mat 50 used. The variant does not require a cover plate 9 the radiator 5 in the case of an extrusion profile cooler 7 . 5 , In the intermediate area 27 between cooler 5 and bracing device 14 becomes an elastic tension mat in the relaxed state 50 brought in. The elastic tension mat 50 is convex on at least one side. The other side may also be convex or flat. The convex side may be the radiator 5 and / or the bracing device 14 be facing and contacted in the untensioned condition not the entire surface with the radiator 5 and / or the bracing device 14 ,

The bracing takes place only with the attachment of the bracing device 14 on the module carrier 12 , Then the elastic tension mat 50 elastically deformed and contacted as a result of full surface with the radiator 5 and the bracing device 14 , The bracing device 14 will receive a convex meniscus contour at the latest. The convex shape of the elastic tension mat 50 it should have a uniform pressure distribution on the radiator 5 allow in the outer and central area. The tension mat 50 can with the cooler 5 or the bracing device 14 for example, be pre-assembled via a kind of "undercut anchor". The elastic tension mat 50 is preferably made of an elastomer z. B. EPDM. A thermoplastic elastomer is conceivable. The elastic tension mat 50 can be grooved, for example, to increase the tolerance range during clamping over the entire surface and to increase the clamping distance or to save weight and material.

The bracing device 14 , the module carrier 12 or the battery 1 may have a stop around the tension or the deformation of the tension mat 50 to limit. The stop defines the maximum approach of the bracing device 14 to the battery 1 when bracing.

39 shows a detail of a plan view of a battery with unstrained cooler and bracing device. It does not use a chuck or elastic tension mat. In the intermediate area 27 between cooler 5 and bracing device 14 no additional element is introduced. Instead, only the bracing device is used 14 even as a tension element. The bracing device 14 is for this purpose an elastic element z. B. spring steel and curved in the unstressed state in the surface convex.

The bracing takes place only with the attachment of the bracing device 14 on the module carrier 12 , Then the bracing device 14 elastically deformed and contacted as a result of in the Deformation of the contact area almost completely over the radiator 5 , The bracing device 14 is thus approximated in the contacting area. The originally convex shape of the bracing device 14 should be in the clamped state, a uniform pressure distribution on the radiator 5 ensure in the outer and central area. The bracing device 14 may also be wavy or profiled, or provided with beads, whereby the rigidity and the transferable forces of the bracing device 14 increase.

40 shows a detail of a plan view of a battery with strained cooler and bracing device. 41 shows a section of a plan view of a battery with strained cooler and bracing device with contiguous clamping body.

The individual clamping bodies in the intermediate area 27 become a coherent clamping body 51 z. B. extrusion profile summarized.

42 shows a three-dimensional view of a battery with unstressed radiator and bracing device with Aufstell-clamping plate. 43 shows a spatial representation of different set-up clamping plates. 44 shows a section of a spatial representation of a battery with unstressed radiator and bracing device with Aufstell-clamping plate. 45 shows a section of a plan view of a battery with unstressed cooler and bracing device with Aufstell-clamping plate. 46 shows a section of a spatial representation of a battery with strained cooler and bracing device with Aufstell-clamping plate. 47 shows a section of a plan view of a battery with strained cooler and bracing device with Aufstell-clamping plate.

The exciting element in this design is similar to the wedge tensioner and the clamping wedge plate, the set-up clamping plate 52 , The erection clamping plate 52 gets into the gap 27 introduced and contacted on the one hand the radiator 5 and on the other hand, the bracing device 14 , The erection clamping plate 52 is essentially a plate or sheet with regularly recurring bumps 55 , the installation area of the set-up clamping plate 55 , These surveys 55 are in the untensioned state at an angle of less than 90 ° from the base plate of the set-up clamping plate 52 path. The ends of the surveys 55 are in relation to the radiator 5 in the unstressed as well as in the tensioned state constantly fixed position.

Will the cooler 5 by a plurality of spaced apart extrusion profiles 7 formed, the surveys can 55 be designed so that they are in the unstressed as well as in the tensioned state just in the area between the extrusion profiles 7 can be positioned sz B. 42 - 47 , As with some of the previous variants, the bracing device becomes 14 even before the actual tension with the module carrier 12 firmly connected. The bracing device 14 Can be partially slotted in the lateral area 24 be. These slots 24 be from tabs 54 the erection clamping plate 52 penetrated. Clamping the erection clamping plate 52 is by pulling on the tabs 54 brought about. This shifts the set-up clamping plate 52 relative to the bracing device 14 and the radiator 5 , causing the surveys 55 Consequently, they stand upright and are under tension due to their fixed positioning. Thus, the surveys stand 55 in the tensioned state at an angle of approximately 90 ° from the base plate of the set-up clamping plate 52 path. The cooler 5 it will be against the battery 1 pressed.

After the tension has been released, the attachment mechanism prevents the installation clamping plate 53 a snapping back of the set-up clamping plate 52 or the installation area 55 and thus the release of the tension. The attachment mechanism of the set-up clamping plate 53 can through one or more surveys 53 on the underside of the installation clamping plate 52 be formed. These mounting surveys 53 penetrate recesses 22 in the bracing device 14 , The mating attachment survey 53 and recess 22 is matched with respect to their shape. When tightening the mounting surveys rest 53 in a defined area of the recesses 22 one. The recesses 22 For this purpose, for example, have a bone-shaped contour, while the mounting surveys 53 V-shaped are designed. The erection clamping plate 52 is preferably a plastic part.

48 shows a detail of a plan view of a battery with cooler and bracing device with resilient element. In the gap 27 between cooler 5 and bracing device 14 becomes one or more springy elements 40 z. B. wavy or profiled sheet of spring steel. When fastening the bracing device 14 with the module carrier 12 becomes the springy element 40 partially compressed and thus elastically deformed.

49 shows a detail of a plan view of a battery with cooler and bracing device with expanding material. In the gap 27 between cooler 5 and bracing device 14 becomes an expanding one material 56 z. B. polyurethane foam introduced. When expanding the material 56 becomes the radiator 5 by increasing the volume of the material 56 against the battery 1 pressed. The bracing device 14 must first with the module carrier 12 be connected. The expanding material 56 can harden after expansion.

50 shows a spatial representation of a battery with cooler and bracing device with elastic plugs. 51 shows a spatial representation of an elastic plug mat. 52 shows a section of a plan view of a battery with unstrained cooler and bracing device with elastic plugs. 53 shows a detail of a plan view of a battery with strained cooler and bracing device with elastic plugs. 54 shows a detail of a plan view of a battery with strained cooler and bracing device with elastic plugs and resilient element. 55 shows a spatial representation of an elastic plug mat as an extrusion.

The exciting element in this embodiment is the elastic plug (s) 57 , The elastic plugs 57 be in the gap 27 introduced and contact on the one hand the radiator 5 and on the other hand, the bracing device 14 , Furthermore, the elastic plugs penetrate 57 in the untensioned state partially the bracing device 14 , which for this purpose with corresponding recesses 22 is provided. The elastic stopper 57 is substantially as a single piece of cylindrical shape, but has grooves and / or undercuts and tapered portions to the elastic plug 57 on the one hand with the recesses 22 the bracing device 14 pre-assemble in the untensioned state, and on the other to prevent snapping back after voltage and thus to release the voltage.

When tightening the elastic plug 57 further into the intermediate area 27 inserted. He is thereby between cooler 5 and bracing device 14 braced, - causing the radiator 5 against the battery 1 pressed. becomes, and deforms elastically. Because of his 57 Design with tapered areas remains the elastic plug 57 then in the tensioned state and no longer slides in the recess 22 back. The bracing device 14 is also in this version before the actual bracing with the module carrier 12 firmly connected. The elastic plugs 57 can be in the form of an elastic plug mat 58 be coherent. The plugs 57 can be of different heights, in which case they are in the middle area of the plug mat 58 are higher.

In a further embodiment, the plug is 57 or the plug mat 58 as an extrusion part 59 made, with the stopper 57 then no longer has a cylindrical shape but an elongated, rod-shaped. The extrusion part 59 In this case has a larger pressure surface and is cheaper to manufacture, but places higher demands on the bracing device in terms of strength 14 , The elastic plugs 57 . 58 . 59 may be formed by a metallic resilient element or by a plastic. Preferably, the elastic plugs are 57 . 58 . 59 to an elastomer or thermoplastic elastomer z. TPE, TPV. A combination of plastic and metallic parts is conceivable. Between grafting 57 . 58 . 59 and coolers 5 Can additionally a springy element 40 be introduced. The stopper 57 . 58 . 59 would not be elastic in this case, or to a lesser extent.

56 shows a schematic two-dimensional representation of the assembly battery with adapter or gill plate. In addition to the exemplary embodiments listed, it may be necessary to introduce intermediate materials, so-called interface materials, between cooler and battery or cell or stack in order to further improve the thermal contact. This may be necessary in particular when the unevenness and roughness of the parts to be joined are very pronounced and / or the radiator or the battery are made so stiff, so that a sufficient adaptation of the radiator to the interface surface of the battery by means of contact pressure of a bracing device no causes satisfactorily large contact areas. The interface material thus increases the effective heat-conducting contact surface or reduces the counteractive air inclusions between radiator and battery.

57 shows a spatial representation of a fitting or gill plate. 58 shows a spatial representation of a section of a fitting or gill plate. 59 shows a spatial representation of a section of an alternative adapter or gill plate. 60 shows a spatial representation of a section of an alternative adapter or gill plate. 61 shows a spatial representation of a section of an alternative adapter or gill plate. 62 shows a spatial representation of a section of an alternative adaptation or dimple / embossing plate. 63 shows a spatial representation of a section of an alternative adaptation or dimple / embossing plate. 64 shows a spatial representation of a section of an alternative adaptation or dimple / embossing plate.

The interface materials shown here can be of the most varied types and are fundamentally divided into the three groups of structured sheets 60 , adapting intermediate media and integral connections. Textured sheets 60 can be soldered to the cooler. Textured sheets 60 as an adjustment or gill plate 60 adapts to the two contact surfaces when the radiator and battery are compressed. This can be done with the textured sheet metal 60 as an adaptation or pimples / embossing plate 60 , be executed as a preformed cambered form sheet, or as a microstructure sheet. Likewise, structured sheets can 60 be designed as sheet metal sections or tips with different stiffness, as corrugated embossing plate, corrugated metal sheet or corrugated fins, as aluminum slot foil. In the process, a slotted film is stretched, giving it a 3D surface. Furthermore, the structural sheet 60 as sandwich honeycomb sheet metal, as a needled sheet metal, as a release liner with intermediate knobs made of elastomer, or as aluminum foil.

In addition to this, suitable intermediate media, such as heat-conducting film, heat-conductive silicone casting compound, plasticine, adhesive compound, aluminum flour, ceramic paste, copper paste, liquid metal, amorphous aluminum wool, PTC adhesive, phase change material, metal fleece, metal fleece, metal Velcro strips, metal Wool, metal flakes, compressible graphite foils, mounting foam; expanding graphite foam, liquid / spray rubber; or spray wax are used. For a compound of the illustrated structural plates with at least one of the contact surfaces can also cohesive connections, such as "baking", sintering with sintered intermediate material, vibration welding, micro-soldering, friction welding, or exothermic film welding z. B. with NiAl nano-active films are applied. Adhesive compositions for welding can also allow a direct contacting cell with coolant.

The described embodiments are chosen only by way of example and can be combined with each other.

LIST OF REFERENCE NUMBERS

1

Battery and / or battery stack

2

Battery Cell

3

Electrical connection of the battery or cell

4

electronic components

5

Radiator and / or heater

6

Laminated sheet construction of the cooler

7

Extrusion profiles z. B. flat tubes of the radiator

8th

Collector box of the radiator

9

Cover or stiffening plate of the radiator

10

Lines of the radiator

11

Heating or heating wire of the radiator

12

Battery or battery stack holder / carrier also module carrier

13

battery case

14

Bracing device of the radiator

15

Clamping plate or strap

16

Clamping or plate

17

Recording for heating wire

18

Connection brace module support or connection brace housing

19

Combination module carrier and bracing device

20

suspension hooks

21

Holes for screwing

22

Recesses in bracing device

23

tension strips

24

Openings / slots in bracing device

25

Tabs of the module carrier

26

Insert clamping body

27

Space between radiator and bracing device

28

Articulated insert clamping body

29

tension shoe

30

Clamping shoe connector

31

connecting rail

32

connecting plate

33

clamping slide

34

Corrugated or profiled clamping plate

35

clamping cubes

36

End piece of the tensioning block

37

Centerpiece of the cube

38

Long side of the center piece of the cube

39

Short side of the center piece of the cube

40

Spring element z. B. spring steel sheet

41

clamping wedge

42

Wedge clamps

43

Wedge-shaped elevations of the wedge-tensioner

44

Fastening device of the wedge clamp

45

Clamping wedge plate

46

Fastening device of the clamping wedge plate

47

Oval Bar

48

Shim plates

49

cotter

50

Elastic tension mat

51

Related clamping body z. B. extrusion profile

52

Erecting chipboard

53

Fastening device of the Aufstellspannplatte z. B. V-shaped elevations

54

Tabs to pull

55

Set-up area of the set-up clamping plate elevations

56

Expanding material z. B. polyurethane foam

57

Elastic plugs

58

Elastic plug mat

59

Elastic plug mat as extrusion part

60

Structured sheet metal in particular adaptation, gills or nubs / embossing plate

61

Gills or slats

62

slotted pimples or embossing

63

embossing

Claims (10)

Device for clamping an electrochemical energy storage module ( 1 ) with a cooler ( 5 ), which has at least one heat transfer surface for the transmission of heat energy, and wherein the energy storage module at least one contact surface for applying the heat transfer surface and at least two module carrier ( 12 ), which are arranged on two opposite sides of the energy storage module, and the device has the following feature: a clamping plate ( 15 ) with at least two, arranged at opposite ends of the clamping plate connecting elements ( 18 ) for connecting the clamping plate with the module carriers ( 12 ), wherein the clamping plate is formed to the radiator ( 5 ) enclose part of the circumference and exert a bracing force on at least portions of a side facing away from the heat transfer surface side of the radiator, when the clamping plate is connected to the module carriers. Device according to claim 1, in which the connecting elements ( 18 ) of the clamping plate ( 15 ) have a biasing force directed against the pre-bending, if the clamping plate not with the module carriers ( 12 ) and wherein the clamping plate the clamping force evenly on the radiator ( 5 ) or portions of the radiator, when the clamping plate is connected to the module carriers. Device according to one of the preceding claims, with at least one clamping body ( 16 ) for placing between the radiator ( 5 ) and the clamping plate ( 15 ). Device according to Claim 3, in which a state of the clamping body ( 16 ) is changeable from a first state to a second state, wherein the clamping body in the first state, a lower clamping force on the radiator ( 5 ) or portions of the radiator than in the second state exerts when the clamping plate with the module carriers ( 12 ) connected is. Device according to Claim 4, in which the clamping body ( 16 ) at least one force application point ( 36 ) for changing the clamping body from the first state to the second state, and / or the clamping body has a latching device, which is designed to allow a change of the clamping body from the first state to the second state and a return from the second state to the first state Prevent condition. Device according to one of claims 3 to 5, wherein the clamping body ( 16 ) is formed to the clamping force evenly on the radiator ( 5 ) or parts of the radiator when the clamping plate ( 15 ) with the module carriers ( 12 ) connected is. Device according to one of claims 3 to 6, wherein the clamping body ( 16 ) An institution ( 17 ) for receiving a heating element. Energy storage device, comprising: a radiator ( 5 ), with at least one heat transfer surface for transferring heat energy; an energy storage module ( 1 ), with at least one contact surface for applying the heat transfer surface and at least two module carriers ( 12 ), which are arranged on two opposite sides of the energy storage module, wherein the cooler is arranged on the contact surface; and a device for clamping the electrochemical energy storage module with the cooler according to one of claims 1 to 7, wherein the connecting elements are connected to the module carriers, and the clamping plate ( 15 ) surrounds the radiator at least part of the circumference, and the clamping plate exerts a clamping force on at least portions of a side facing away from the heat transfer surface side of the radiator. Energy storage device according to claim 8, wherein between the radiator ( 5 ) and the energy storage module ( 1 ) an intermediate material ( 60 . 61 ) is arranged, which compensates for a plastic and / or elastic deformation unevenness of the heat transfer surface and / or the contact surface. Method for producing an energy storage device, comprising the following steps: providing a cooler ( 5 ), with at least one heat transfer surface for transferring heat energy; Provision of an energy storage module ( 1 ) with at least one contact surface for applying the heat transfer surface and at least two module carriers ( 12 ) disposed on two opposite sides of the energy storage module; Providing a device for clamping an electrochemical energy storage module with a cooler, with a clamping plate ( 15 ) with at least two opposing connecting elements ( 18 ) for connecting the clamping plate to the module carriers, wherein the clamping plate is formed to enclose the cooler part circumferentially, and exert a clamping force on at least portions of a side facing away from the heat transfer surface side of the radiator, when the clamping plate is connected to the module carriers; Arranging the cooler on the energy storage module, wherein the heat transfer surface is applied to the contact surface; and connecting the connecting elements with the module carriers in order to partially enclose the cooler with the clamping plate, and to exert a clamping force on at least partial regions of a side of the cooler facing away from the heat transfer surface.

Images