阅读说明：本技术 用于车辆的电池、冷却系统和制造方法 (Battery, cooling system and manufacturing method for vehicle ) 是由 B·布雷梅克 于 2020-04-07 设计创作，主要内容包括：本发明涉及一种用于车辆的电池(2),所述电池包括电池单元组件(4)、借助于接触元件(6)与所述电池单元组件(4)传递信号地和/或传递功率地连接的电池电子组件(8)以及用于冷却电池电子组件(8)的冷却元件(10),所述冷却元件(10)在电池(2)的安装状态中设置在电池单元组件(4)与电池电子组件(8)之间。为了改善对用于车辆的电池(2)的冷却,提出：所述冷却元件(10)构造为电池电子组件(8)的集成式组成部分。本发明还涉及一种冷却系统和一种用于制造电池(2)的方法。(The invention relates to a battery (2) for a vehicle, comprising a battery cell assembly (4), a battery electronics assembly (8) which is connected to the battery cell assembly (4) by means of a contact element (6) in a signal-transmitting and/or power-transmitting manner, and a cooling element (10) for cooling the battery electronics assembly (8), wherein the cooling element (10) is arranged between the battery cell assembly (4) and the battery electronics assembly (8) in a mounted state of the battery (2). In order to improve the cooling of a battery (2) for a vehicle, it is proposed that: the cooling element (10) is designed as an integrated component of the battery electronics assembly (8). The invention also relates to a cooling system and a method for producing a battery (2).)

1. Battery (2) for a vehicle, comprising a battery cell assembly (4), a battery electronics assembly (8) which is connected to the battery cell assembly (4) by means of a contact element (6) in a signal-transmitting and/or power-transmitting manner, and a cooling element (10) for cooling the battery electronics assembly (8), wherein the cooling element (10) is arranged between the battery cell assembly (4) and the battery electronics assembly (8) in the installed state of the battery (2), characterized in that the cooling element (10) is designed as an integrated component of the battery electronics assembly (8).

2. The battery (2) according to claim 1, characterized in that the cooling element (10) is configured as an integrated component of a housing (12) of a battery electronics assembly (8).

3. Battery (2) according to claim 1 or 2, characterized in that the cooling element (10) is additionally configured for cooling the battery cell assembly (4).

4. Battery (2) according to one of claims 1 to 3, characterized in that the cooling element (10) is configured for active cooling of the battery electronic assembly or for active cooling of the battery electronic assembly (8) and the battery cell assembly (4).

5. Battery (2) according to one of claims 1 to 4, characterized in that the cooling element (10) is indirectly connected with the component of the battery electronic assembly to be cooled or with the component of the battery electronic assembly (8) and of the battery cell assembly (4) to be cooled by means of at least one heat conducting means (18).

6. Battery (2) according to one of the claims 1 to 5, characterized in that the battery electronics assembly (8) is configured as a cover of the battery (2) and the battery cell assembly (4) has a housing (14) corresponding to the cover (8).

7. Battery (2) according to one of claims 1 to 6, characterised in that the battery electronics assembly (8) is designed as a hermetically closed battery electronics assembly (8), the contact element (6) is designed as a contact element (6) of the battery electronics assembly (8) and projects from the battery electronics assembly (8) for contacting the battery electronics assembly (8) with the battery cell assembly (4).

8. Battery (2) according to claim 7, characterised by the fact that the cooling element (10) has at least one cooling connection for conducting heat away from the cooling element (10), which extends from the battery electronics (8) for the purpose of contacting the cooling connection with an active and/or passive cooling device.

9. Cooling system comprising a battery (2) and a cooling device for the battery (2), characterized in that the battery (2) is constructed according to any one of claims 1 to 8.

10. The cooling system of claim 9, wherein the cooling device is an integrated component of the battery.

11. Method for producing a battery (2) according to one of claims 1 to 8, characterized in that the battery electronics component (8) and the battery cell component (4) are produced separately from one another and subsequently connected to one another mechanically and electrically conductively by means of the contact element (6).

12. Method according to claim 11, characterized in that the cooling element (10) is connected in a heat-conducting manner to the cooling device by means of a cooling interface.

Technical Field

The present invention relates to a battery for a vehicle according to the preamble of claim 1, a cooling system according to the preamble of claim 9 and a method for manufacturing a battery.

Background

Such batteries, cooling systems and production methods are known from the prior art in a large number of embodiment variants.

For example, WO 2018046442 a1 shows a dual-voltage battery, in particular for a vehicle, comprising a plurality of battery cells, wherein groups of battery cells are each connected to form battery cell blocks; the dual-voltage battery includes battery electronics having a plurality of power switching elements which are provided in a mounted state of the dual-voltage battery and are configured for connecting at least individual battery cell blocks in series and/or in parallel, wherein a first voltage is provided in a first connection arrangement of the battery cell blocks and a second voltage is provided in a second connection arrangement of the battery cell blocks; and the dual-voltage battery comprises a multi-part housing which, in the installed state, encloses the battery cells and the battery electronics, wherein the battery electronics are provided in the form of a battery electronics assembly, and wherein the battery cell blocks form a battery cell assembly separate from the battery electronics assembly in such a way that the battery electronics assembly has a power interface which, in the installed state, faces the battery cell blocks of the battery cell assembly and via which the battery electronics assembly is connected in an electrically conductive manner to the battery cell blocks.

In order to cool the battery electronics and the battery cell arrangement, a cooling module is arranged between the battery electronics and the battery cell arrangement in the mounted state.

Disclosure of Invention

The invention is started here.

The object of the invention is to improve the cooling of a battery for a vehicle.

The object is achieved by a battery for a vehicle having the features of claim 1, characterized in that the cooling element is designed as an integrated component of the battery electronics. In this way, the cooling of the battery for the vehicle is improved. On the one hand, the integration of the cooling element function into the battery electronics assembly results in a simplification in terms of the structural design and thus in a saving of components and a simplification of the production of the battery. On the other hand, the additional thermal resistance between the battery electronics and the cooling element is eliminated. Accordingly, the thermal conduction between the component of the battery electronics assembly to be cooled and the cooling element is improved. The object is also achieved by a cooling system according to claim 9 and a method for producing a battery according to claim 11.

The dependent claims relate to advantageous further developments of the invention.

Depending on the form, operating principle, geometry, materials, arrangement, number and integration into the battery electronics package, the cooling element can be freely selected within wide suitable limits. In an advantageous further development of the battery according to the invention, it is provided that the cooling element is designed as an integrated component of a housing of the battery electronics assembly. The cooling element is thereby realized in a constructionally particularly simple manner.

In principle, it is conceivable for the cooling element to be designed and arranged only for cooling the battery electronics. Advantageously, according to a further development of the battery according to the invention, it is provided that the cooling element is additionally designed for cooling the battery cell arrangement. In this way the function of the cooling element is improved. Accordingly, simultaneous cooling of the battery electronics assembly and the battery cell assembly can be achieved by means of the cooling element.

In a further advantageous development of the battery according to the invention, it is provided that the cooling element is designed for actively cooling the battery electronics assembly or for actively cooling the battery electronics assembly and the battery cell assembly. In the case of passive cooling only, cooling of the battery, in particular of the battery electronics, is achieved in a constructionally particularly simple manner. In the case of active cooling, which can be an alternative or in addition to a passive cooling configuration, a particularly effective cooling of the battery can be achieved. The active cooling may for example be air cooling or water cooling. However, other cooling media, such as oil, are also conceivable.

In a further advantageous development of the battery according to the invention, it is provided that the cooling element is indirectly connected to the component of the battery electronics assembly to be cooled or to the components of the battery electronics assembly and the battery cell assembly to be cooled by means of at least one heat conducting means. This further improves the heat conduction from the component of the battery electronics assembly to be cooled or from the components of the battery electronics assembly and the battery cell assembly to be cooled. The at least one heat conducting means may for example be a heat conducting glue or the like.

Depending on the form, operating principle, geometry, materials and arrangement, a battery with battery electronics and battery cell arrangement can in principle be freely selected within wide suitable limits. In an advantageous further development of the battery according to the invention, it is provided that the battery electronics assembly is designed as a cover of the battery, and that the battery cell assembly has a housing corresponding to the cover. In this way the functionality of the battery electronics is further improved.

A particularly advantageous further development of the battery according to the invention provides that the battery electronics assembly is designed as a hermetically closed battery electronics assembly, wherein the contact elements are designed as contact elements of the battery electronics assembly, and the contact elements project from the battery electronics assembly for contacting the battery electronics assembly with the battery cell assembly. As a result, the battery electronics of the battery electronics assembly are effectively protected against harmful environmental influences. Handling during storage, transport and production of the battery according to the invention is correspondingly simplified. For example, the battery electronics can be produced independently of the cell assembly of the battery according to the invention. Accordingly, the battery electronics assembly and the battery cell assembly may be obtained from different suppliers.

In an advantageous further development of the aforementioned embodiment of the battery according to the invention, it is provided that the cooling element has at least one cooling connection for conducting heat away from the cooling element, wherein the cooling connection protrudes from the battery electronics assembly for contacting the cooling connection with an active and/or passive cooling device. In this way, active and/or passive cooling of the battery electronic assembly or of the battery electronic assembly and the battery cell assembly is not impeded by the hermetically closed battery electronic assembly.

In an advantageous further development of the cooling system according to the invention, it is provided that the cooling device is an integrated component of the battery. The cooling system can thereby be realized in a constructionally simple manner and in a very compact structural manner.

In an advantageous further development of the method according to the invention, it is provided that the cooling element is connected to the cooling device in a thermally conductive manner by means of a cooling connection. In this way the production of the battery according to the invention is further simplified.

Drawings

The invention is explained in more detail below with the aid of the attached roughly schematic drawing. The sole figures show here:

fig. 1 shows an embodiment of a battery according to the invention and a cooling system according to the invention in a partial illustration in a sectional side view.

Detailed Description

Fig. 1 shows an exemplary embodiment of a battery for a vehicle according to the invention and of a cooling system according to the invention. Battery 2 for a vehicle, not shown, is designed as a dual-voltage battery for a motor vehicle and comprises a battery cell assembly 4, a battery electronics assembly 8 connected to battery cell assembly 4 by means of a contact element 6 in a signal-transmitting and power-transmitting manner, and a cooling element 10 for cooling battery electronics assembly 8, wherein cooling element 10 is arranged between battery cell assembly 4 and battery electronics assembly 8 in the installed state of battery 2 shown in fig. 1.

The cooling element 10 is designed as an integrated component of the battery electronics assembly 8, wherein the cooling element 10 is designed as an integrated component of a housing 12 of the battery electronics assembly 8. The housing 12 substantially seals the battery electronics unit 8 to the outside, so that the battery electronics assembly 8 is designed as a hermetically closed battery electronics assembly 8, wherein the contact elements 6 are designed as contact elements of the battery electronics assembly 8 and project from the battery electronics assembly 8 for contacting the battery electronics assembly 8 with the battery cell assembly 4.

The battery electronics assembly 8 is designed as a cover for the battery 2, and the battery cell assembly 4 has a housing 14 corresponding to the cover 8. The battery electronics assembly 8 configured as a cover and the housing 14 of the battery cell assembly 4 are configured in such a way that, in the installed state of the battery 2 shown in fig. 1, the battery electronics assembly 8 with its housing 12 substantially sealingly closes the battery cell assembly 4 with its housing 14.

In the present exemplary embodiment, cooling element 10 is additionally designed to cool battery cell assembly 4. In order to be able to achieve a high cooling power, the cooling element 10 is designed for actively cooling the battery electronics assembly 8 and the battery cell assembly 4. For this purpose, the cooling element 10 has a cavity 16 through which a cooling medium 15 can flow. Furthermore, the cooling element 10 has a cooling connection, not shown, for dissipating heat from the cooling element 10, wherein the cooling connection protrudes from the battery electronics assembly 8 for contacting the cooling connection with an active cooling device. Not shown in fig. 1 are active cooling devices, for example, circulation systems for the cooling medium 15 which is fed through the cavity 16 of the cooling element 10The battery 2 and a cooling device, not shown, thus constitute a cooling system according to the invention.

In order to achieve better thermal conduction from the components of the battery electronics assembly 8 and the battery cell assembly 4 to be cooled to the cooling element 10, the cooling element 10 is indirectly connected to the components of the battery electronics assembly 8 and the battery cell assembly 4 to be cooled by means of the heat conducting means 18. The individual components of the battery electronics assembly 8 and of the battery cell assembly 4 to be cooled are not shown in fig. 1. Only the circuit board 19 is shown, on which the components of the battery electronics assembly 8 to be cooled are arranged in an electrically conductive manner. The at least one heat conducting means 18 is configured, for example, as a heat conducting glue. Furthermore, in order to improve the heat conduction from the battery cell assembly 4 to the cooling element 10, the battery cell assembly 4 additionally has a cooling plate 20.

The method according to the invention for producing a battery 2 according to the present embodiment is explained in more detail below with the aid of fig. 1.

The battery electronics assembly 8 and the battery cell assembly 4 are first produced separately from one another and then connected to one another mechanically and electrically conductively by means of the contact elements 6. Furthermore, the cooling element 10 is connected in a thermally conductive, in the present case fluid-conducting manner to a cooling device, also not shown, by means of a cooling connection, also not shown. Correspondingly, the battery electronics 8 can also be produced separately from the battery cell assembly 4 of the battery 2 according to the invention. Thereby, the battery electronics assembly 8 and the battery cell assembly 4 may be obtained from different suppliers.

The present invention is not limited to the present embodiment. For example, the present invention may also be advantageously applied to other batteries for vehicles. Besides, the application of the present invention is not limited to vehicles. In contrast to the exemplary embodiments illustrated, the cooling element can also be designed and arranged to cool only the battery electronics. In addition to the active cooling of the battery electronics assembly or of the battery electronics assembly and the battery cell assembly, it is also conceivable to only passively cool the battery electronics assembly or of the battery electronics assembly and the battery cell assembly or to perform a combined passive cooling and active cooling.

Instead of using at least one heat conduction means for indirectly connecting the component to be cooled of the battery electronic component or the components to be cooled of the battery electronic component and the battery cell assembly to the cooling element, it can be provided that the aforementioned component to be cooled is at least partially directly, i.e. indirectly, in heat-conducting connection with the cooling element.

Furthermore, the cooling device of the cooling system according to the invention can also be constructed as an integrated component of the battery according to the invention. Accordingly, a very compact design of the cooling system according to the invention is obtained.

List of reference numerals

2 battery constructed as a dual voltage battery

4 battery 2 battery unit component

6 contact element of battery 2

Battery electronic assembly of 8 batteries 2

10 cooling element for a battery electronics assembly 8

12 casing of battery electronic assembly 8

14 housing of battery unit assembly 4

15 cooling medium

16 cooling the cavity of the element 10

18 heat conduction device constructed as heat conduction glue

19 circuit board of battery electronic assembly 8

20 cooling plate of battery cell assembly 4