Battery module temperature control device

Abstract

The present invention relates to a temperature control device for a battery module, which controls the temperature of multiple battery modules that can be accommodated in a battery holder for an electric vehicle, wherein the temperature control device can be thermally coupled to the multiple battery modules, and the temperature control device comprises: a temperature control plate for controlling the temperature of the multiple battery modules, the temperature control plate having a surface, the temperature control plate having a fluid channel, through which a temperature control fluid can flow to control the temperature of the battery modules, wherein the fluid channel has a channel opening; and a connecting element, which is fluid-tightly connected to the channel opening, the connecting element having a connecting piece, which can be fluidically connected to a fluid guide to provide a fluid connection between the fluid guide and the fluid channel, wherein the connecting piece extends at a certain angle relative to the surface of the temperature control plate.

Description

Technical Field

[0001] The present invention relates to a temperature control device for controlling the temperature of a plurality of battery modules of an electric vehicle, and more particularly to a temperature control device for controlling the temperature of a plurality of battery modules that can be accommodated in a battery container for an electric vehicle. Background Art

[0002] In order to hold the battery modules for providing electric energy in electric vehicles, a battery holder arranged between the axles of the vehicle is usually used. A temperature control device, especially a cooling plate, is usually arranged at the corresponding battery holder, and the temperature control device is configured to control the temperature of the battery module accommodated in the battery holder, especially to cool it, so that it can operate at a relatively constant temperature during the operation of the electric vehicle.

[0003] For example, document DE 10 2016 115 647 B3 describes a battery holder designed as a battery tray.

[0004] Furthermore, document EP 2 372 761 A2 discloses a cooling plate having structurally integral fluid connections. Summary of the invention

[0005] An object of the present disclosure is to provide an effective temperature control device for controlling the temperature of a battery module that may be accommodated in a battery holder.

[0006] This object is achieved by the features of the independent claims. Advantageous embodiments are the subject matter of the dependent claims, the description and the drawings.

[0007] The invention is based on the recognition that a particularly compact temperature control device can be provided and therefore a temperature control device that requires little installation space in a vehicle can be provided, because the passage opening of the temperature control plate of the temperature control device is not directly connected to the fluid supply device, but the temperature control device comprises a connecting element with a connecting piece, which is connected to the passage opening in a fluid-tight manner. In this case, the connecting piece extends at an angle relative to the surface of the temperature control plate.

[0008] The connection element can be used to provide a temperature control device with a low installation height, which can also be easily and efficiently assembled by arranging the connection piece in particular on the side, and can be attached to the battery holder of the vehicle in a particularly advantageous manner. Thus, an effective thermal coupling can be provided between the temperature control device and the battery module accommodated in the battery holder.

[0009] According to one aspect, the present disclosure relates to a temperature control device for controlling the temperature of a plurality of battery modules that can be accommodated in a battery holder for an electric vehicle, wherein the temperature control device can be thermally coupled to the plurality of battery modules. The temperature control device comprises: a temperature control plate for controlling the temperature of the plurality of battery modules, wherein the temperature control plate has a surface, wherein the temperature control plate has a fluid channel through which a temperature control fluid can flow to control the temperature of the battery modules, and wherein the fluid channel has a channel opening, and a connecting element that is fluid-tightly connected to the channel opening, wherein the connecting element has a connecting piece that can be fluidically connected to a fluid guide to provide a fluid connection between the fluid guide and the fluid channel, wherein the connecting piece extends at a certain angle relative to the surface of the temperature control plate.

[0010] This has the technical advantage that a temperature control device is obtained which requires little installation space and can therefore be mounted on the battery holder in a space-saving manner to ensure effective temperature control of the battery modules accommodated in the battery holder. In particular, the height of the temperature control device can be advantageously reduced.

[0011] In particular, the temperature control device according to the invention can be used within the battery holder, for example in the case of modular temperature control or cooling, or also below the battery holder, for example in the case of integrated temperature control or cooling.

[0012] The connecting element of the temperature control device arranged between the passage opening and the connecting piece allows the connecting piece to be displaced outwardly relative to the passage opening of the temperature control plate so that the connecting piece is arranged outside the temperature control plate.

[0013] In particular, the connecting element is arranged on a surface of the temperature control plate and the connecting element protrudes beyond a plate edge of the temperature control plate, wherein in particular a connecting piece of the connecting element is arranged outside the temperature control plate.

[0014] Therefore, the fluid guide connected to the connection member is also arranged outside the temperature control board. If the temperature control board is mounted on the battery holder, the fluid guide connected to the connection member will also be arranged outside the battery holder. Therefore, in the event of leakage of the fluid guide, no influence is exerted on the battery module accommodated in the battery holder.

[0015] The connection element extends at an angle to the surface of the temperature control plate, in particular at a right angle to the surface of the temperature control plate. According to the invention, the angled arrangement of the connection element to the surface of the temperature control plate in particular excludes the surface of the temperature control plate and the connection element extending parallel to each other.

[0016] In particular, the connecting piece extends at an angle, in particular a right angle, to the longitudinal direction and the transverse direction of the temperature control plate.

[0017] Furthermore, the temperature control device ensures an effective fluid seal between the passage opening, the connecting element and the connecting piece. In particular, an effective sealing surface can be obtained on one plane. Furthermore, by advantageously fastening the temperature control plate, the connecting element and the connecting piece to each other, for example by means of a threaded connection, it is not necessary to thermally bond the individual components of the temperature control device together.

[0018] According to the present invention, a temperature control fluid may flow through the fluid channel of the temperature control plate so as to control the temperature of the battery module, that is, so as to thermally control the battery module. For example, when the vehicle consumes a large amount of energy, the battery module may become hot, in which case the temperature control fluid conducted through the fluid channel may dissipate heat from the battery module so as to cool it. For example, when the vehicle is started at a lower external temperature, the battery module may have a lower temperature, in which case the temperature control fluid conducted through the fluid channel provides heat to the battery module to heat it. As a result, a relatively constant temperature of the battery module may be ensured during vehicle operation, which has a favorable effect on the performance parameters and service life of the battery module.

[0019] In one embodiment, the connecting piece is formed integrally with the connecting element, or the connecting piece is connected to the connecting element in a material-fitting, force-fitting and / or form-fitting manner.

[0020] This achieves the technical advantage that an advantageously integral and non-fluid-tight connecting element is obtained through a one-piece design, while alternatively, a particularly advantageous modular structure of the connecting part and the connecting element can be ensured through a material bond, a press fit and / or a form-fitting connection between the connecting part and the connecting element.

[0021] The material-locking connection particularly comprises welding and / or bonding of the connecting element and the connecting piece. In particular, the press-fit connection comprises screwing, locking and / or pressing the connecting element and the connecting piece.

[0022] In particular, the connecting element has a connecting element stop, onto which, for example, a fluid guiding element connected to the connecting element can be pushed.

[0023] In one embodiment, the channel opening of the fluid channel is arranged on a surface of the temperature control plate, in particular on the first surface and / or the second surface, and the connecting element is arranged on a surface of the temperature control plate, in particular on the first surface and / or the second surface.

[0024] This results in the technical advantage that a particularly advantageous fluid connection can be ensured between the channel opening of the fluid channel and the connecting element.

[0025] The passage opening and / or the connecting element are arranged in particular in an edge region of the temperature-control plate. The edge region of the temperature-control plate adjoins in particular a plate edge of the temperature-control plate which delimits the temperature-control plate.

[0026] In one embodiment, the connecting element has an element housing with a first element opening which is connected to the passage opening in a fluid-tight manner, the first element opening and the passage opening being arranged aligned with one another.

[0027] This achieves the technical advantage that the aligned and fluid-tight arrangement of the first element opening and the channel opening can ensure an effective fluid connection between the fluid channel and the connecting element.

[0028] In particular, the connecting element is formed in a T-shape or is shaped as a tray.

[0029] In one embodiment, the connecting element has an element housing with a second element opening which is connected to the connecting piece in a fluid-tight manner, the first element opening and the second element opening of the element housing being arranged in particular on the same side of the element housing.

[0030] This achieves the technical advantage that the fluid-tight connection of the second element opening to the connecting piece can ensure an effective fluid process connection between the fluid channel and the connecting piece.

[0031] In particular, the connecting piece has a connecting flange which is connected to a region of the element housing surrounding the second element opening.

[0032] In particular, the connecting piece, in particular the connecting flange, is connected to the second element opening, in particular to a region of the element housing surrounding the second element opening, in a press-fit, form-fit and / or materially connected manner, in particular welded and / or glued.

[0033] In particular, the first element opening and the second element opening of the element housing are arranged on the same side of the element housing, in particular on a housing contact side, which in particular corresponds to a side of the element housing lying against the temperature control plate.

[0034] In particular, the component housing has a first housing subregion in which a first component opening is formed, and the component housing has a second housing subregion in which a second component opening is formed. In particular, the first component opening is formed on the housing contact side of the first housing subregion of the component housing, and the second component opening is formed on the housing contact side of the second housing subregion of the component housing.

[0035] In particular, the first housing subregion has a larger volume than the second housing subregion. In particular, the first housing subregion is wider and / or longer than the second housing subregion.

[0036] In particular, the second housing subregion of the element housing projects over the temperature control plate, in particular over a plate edge of the temperature control plate, so that the connection element is arranged outside the temperature control plate.

[0037] In particular, the passage opening, the first element opening and / or the second element opening are shaped as elongated holes and / or circular holes. In particular, the passage opening and the first element opening are shaped as elongated holes, while the second element opening is shaped as a circular hole.

[0038] In one embodiment, the connecting element has an element housing with a third element opening, which is particularly arranged on a side of the element housing facing away from the first and / or second element opening of the element housing. The connecting element has a housing cover which is connected to the element housing and closes the third element opening in a fluid-tight manner.

[0039] This has the technical advantage that a fluid-tight connection between the third component opening and the housing cover enables an effective fluid-tight sealing of the component housing.

[0040] In particular, the housing cover is connected to the third element opening in a force-fitting, form-fitting and / or materially bonded manner, in particular welded and / or glued manner.

[0041] In particular, the element housing has a housing attachment which at least partially surrounds the third element opening and on which the housing cover can be placed.

[0042] In one embodiment, the temperature control plate is designed as an at least partially double-layered temperature control plate having a first surface and / or a second surface delimiting the fluid channel, the channel opening being formed in the first surface and / or the second surface.

[0043] This achieves the technical advantage that the fluid channels can be shaped particularly advantageously in the double-layer temperature control plate.

[0044] In one embodiment, the first surface and / or the second surface delimiting the fluid channel comprises a protrusion extending along the temperature control plate, in particular along a central area of ​​the temperature control plate.

[0045] This achieves the technical advantage that the projections formed in the first surface and / or the second surface ensure that the fluid channel formed in the temperature control plate has a sufficiently large volume.

[0046] Here, the projections defining the fluid channel extend in particular along a central region of the temperature control plate, in particular from the central region to an edge region, wherein the channel opening is in particular arranged in the edge region and the edge region extends in particular from a plate edge of the temperature control plate.

[0047] In one embodiment, the connecting element, in particular the element housing of the connecting element, is connected to the temperature control plate, in particular the first surface and / or the second surface, in a press-fit and / or form-fitting manner, in particular by screwing, crimping, gluing and / or welding.

[0048] This has the technical advantage that a particularly effective fastening of the connecting element to the temperature control plate is ensured.

[0049] In one embodiment, the temperature control plate, in particular the first surface and / or the second surface, has a contact area defining a fluid channel, the channel opening being formed in the contact area, the contact area being in particular arranged in an edge area of ​​the temperature control plate, wherein the connecting element, in particular the element housing of the connecting element, has an element contact area which is connected to the contact area of ​​the temperature control plate in a fluid-tight manner, wherein in particular the first element opening is formed in the element contact area.

[0050] This achieves the technical advantage that the connection between the contact region of the temperature control plate and the element contact region of the connecting element ensures a spatially advantageous positioning of the connecting element relative to the temperature control plate.

[0051] In one embodiment, the channel height of the fluid channel in the contact region is lower than the channel height outside the contact region, and / or the channel width of the fluid channel in the contact region is greater than the channel width outside the contact region.

[0052] This achieves a technical advantage in that, due to the lower channel height of the fluid channel in the contact region, the entire height of the temperature control device (comprising the temperature control plate and the connecting element) can be effectively reduced when the element contact region of the connecting element is connected to the contact region. If the fluid channel is formed to have a larger channel width, in particular in the contact region, it can be ensured that a sufficiently large volume is provided for the fluid flow in the case of a reduced channel height in the region of the contact region.

[0053] In one embodiment, the connecting element, in particular the element housing of the connecting element, has at least one fastening flange which is fastened to the temperature control plate, in particular to the first surface and / or the second surface.

[0054] This achieves the technical advantage that a particularly effective fastening of the connecting element to the temperature control plate can be ensured by the fastening flange.

[0055] In particular, the element housing has two fastening flanges which are fastened to opposite sides of the element housing.

[0056] In particular, at least one fastening flange is formed on the element contact area of ​​the element housing and the at least one fastening flange protrudes beyond the contact area of ​​the temperature control plate.

[0057] In one embodiment, the fastening flange has at least one flange opening, wherein at least one fastening element, in particular a fastening screw, is fastened to the temperature control plate, in particular on the first surface and / or the second surface. The fastening element is guided through the flange opening, wherein another fastening element, in particular a fastening nut, is fastened to the fastening element guided through the flange opening.

[0058] This has the technical advantage that a particularly effective fastening of the connecting element to the temperature control plate can be ensured by the fastening element.

[0059] In particular, at least one fastening element is fastened to the temperature control plate next to the contact area. In particular, a plurality of, in particular two, fastening elements are fastened next to one side of the contact area, and a plurality of, in particular two, fastening elements are fastened next to the opposite side of the contact area, each fastening element passing through a corresponding flange opening of a first fastening flange or a second fastening flange, the second fastening flange being opposite to the first fastening flange, and the fastening elements are fastened respectively by another fastening element, in particular a fastening nut.

[0060] In one embodiment, the temperature control plate, in particular the contact area, has a sealing receiver around the channel opening, and / or wherein the connecting element, in particular the element contact area of ​​the element housing of the connecting element, has a further sealing seat around the first element opening, the temperature control device having a sealing element, which is accommodated in the sealing seat and / or in the further sealing seat to ensure a fluid-tight connection between the channel opening and the connecting element, in particular with the first element opening.

[0061] This achieves the technical advantage that the sealing element can ensure an effective fluid seal between the temperature control plate and the connecting element.

[0062] In one embodiment, the connecting element is formed as a milled or deep-drawn connecting element.

[0063] This achieves the technical advantage that simple and advantageous producibility of the connecting element can be ensured.

[0064] In one embodiment, the temperature control device includes a battery holder for accommodating a battery module, wherein the temperature control board is arranged inside or below the battery holder and attached to the battery holder.

[0065] This has the technical advantage that effective temperature control of the battery modules in the battery holder can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Other embodiments will be described with reference to the accompanying drawings, which include:

[0067] Figure 1 is a perspective view of the temperature control device according to the first embodiment at a first viewing angle;

[0068] Figure 2 is a perspective view of the temperature control device according to the first embodiment at a second viewing angle;

[0069] Figure 3A , 3B 3C is a perspective view showing a temperature control device according to the first embodiment in a partial representation;

[0070] Figure 4A , 4B 4C shows a partial representation of a perspective view of a temperature control device according to a second embodiment.

[0071] Reference numerals:

[0072] 100 Temperature control device

[0073] 101 Temperature control panel

[0074] 101-1 First Surface

[0075] 101-2 Second Surface

[0076] 101-3 First Sub-Board

[0077] 101-4 Second sub-board

[0078] 101-5 Central Area

[0079] 101-6 Marginal Area

[0080] 101-7 Board Edge

[0081] 103 Fluid Channel

[0082] 103-1 Channel height

[0083] 103-2 Channel Width

[0084] 103-3 Channel Opening

[0085] 105 Connecting elements

[0086] 105-1 Component housing

[0087] 105-2 Housing accessories

[0088] 107 Connectors

[0089] 107-1 Nozzle Stop

[0090] 107-2 Connection flange

[0091] 109-1 Vertical direction

[0092] 109-2 Horizontal direction

[0093] 109-3 Vertical direction

[0094] 111 Contact area

[0095] 111-1 Sealing seat

[0096] 112 Sealing element

[0097] 113 Component contact area

[0098] 115 First element opening

[0099] 117 Second element opening

[0100] 119 Shell contact side

[0101] 121-1 First shell sub-area

[0102] 121-2 Second shell sub-area

[0103] 121-3 Sub-area stairs

[0104] 123 Third element opening

[0105] 125 Fastening elements

[0106] 127 Fastening flange

[0107] 127-1 Flange opening

[0108] 129 Additional fastening elements

[0109] 131 Housing cover

[0110] 133-1 First weld

[0111] 133-2 Second weld DETAILED DESCRIPTION

[0112] Figure 1 1 is a perspective view of a temperature control device according to a first embodiment at a first viewing angle. The temperature control device 100 according to the present disclosure includes a temperature control plate 101. Here, the temperature control device 100 can be thermally coupled to a plurality of battery modules ( Figure 1 ), the battery module can be accommodated in a battery container ( Figure 1 (not shown).

[0113] The temperature of the battery module can vary, for example, depending on the external temperature of the electric vehicle and / or on the energy consumption of the electric vehicle. Since strong fluctuations in the temperature of the battery module can in some cases have a negative impact on the service life and performance of the battery module, the object of the present disclosure is to keep the temperature of the battery module as constant as possible and to avoid temperature fluctuations.

[0114] therefore, Figure 1 The temperature control device 100 shown includes a temperature control plate 101 for controlling the temperature of a plurality of battery modules. The temperature control plate 101 has at least one fluid channel 103 (in Figure 1 (shown only schematically in FIG. 1 ), a temperature control fluid can flow through the fluid channel 103 so as to control the temperature of the battery module accommodated in the temperature control device 100, that is, to control the battery module in a thermal manner.

[0115] Here, the temperature control plate 101 or the fluid channel 103 is thermally coupled to the battery module accommodated in the battery container to ensure effective heat exchange between the temperature control fluid and the battery module.

[0116] The temperature control fluid can cause the battery modules to be heated, for example, if the temperature of the battery modules is too low due to low external temperatures of the electric vehicle. The temperature control fluid can cause the battery modules to be cooled, for example, if the temperature of the battery modules is too high due to the high power demand of the electric vehicle.

[0117] Thus, by means of the temperature control fluid it can be ensured that the battery module operates at a temperature which is as constant as possible.

[0118] The temperature control board 101 shown can be used, for example, in the context of modular temperature control or cooling. The temperature control board 101 can be used in a battery holder, in particular a battery box ( Figure 1 The temperature control plate 101 particularly has a first surface 101-1, and particularly has a second surface 101-2 facing away from the first surface 101-1.

[0119] In particular, the temperature control plate 101 is formed by a plurality of, in particular two, sub-plates 101-3, 101-4, which are connected to each other, in particular by material bonding, form fit and / or press fit. In particular, the temperature control plate 101 is designed as an at least partially double-layer temperature control plate 101, which includes a first sub-plate 101-3 and a second sub-plate 101-4.

[0120] The temperature control device 100 further comprises a connecting element 105 which is connected in a fluid-tight manner to a channel opening 103-3 of the fluid channel 103 of the temperature control plate, wherein the channel opening 103-3 is not Figure 1For detailed illustration of the channel opening 103-3, please refer to Figure 3A .

[0121] The connecting element 105 also includes a connecting piece 107, which can be connected to a fluid guide, such as a fluid hose (in Figure 1 The fluid guide (not shown) can be inserted into the connector 107, in particular, to provide an effective fluid connection between the fluid channel 103 of the temperature control plate 101 and the fluid guide. Figure 1 ) may in particular comprise a fluid supply or a fluid discharge for supplying or for discharging a temperature control fluid.

[0122] The connection piece 107 extends at an angle, in particular at a right angle, to the surfaces 101 - 1 , 101 - 2 of the temperature control plate 101 , in particular to the first surface 101 - 1 and the second surface 101 - 2 of the temperature control plate 101 .

[0123] In particular, the temperature control plate 101 extends along a longitudinal direction 109-1 and a transverse direction 109-2, and the connection member 107 extends along a vertical direction 109-3, which forms a certain angle, in particular a right angle, with respect to the longitudinal direction 109-1 and the transverse direction 109-2.

[0124] In particular, the connection piece 107 extends from the second surface 101-2 of the temperature control plate 101 along the vertical direction 109-3 in the direction of the first surface 101-1 of the temperature control plate 101. Here, the connection piece 107 protrudes beyond the first surface 101-1 of the temperature control plate 101 and also beyond the second surface 101-2 of the temperature control plate 101.

[0125] The connection element 107 has in particular a connection element stopper 107 - 1 , onto which, for example, a fluid guide element connected to the connection element 107 can be pushed.

[0126] from Figure 1 It can be seen that the fluid channel 103 has a large channel width 103 - 2 in particular, so that the fluid channel 103 can have a low channel height 103 - 1 when the volume of the fluid channel 103 is constant.

[0127] Since the connecting member 107 is relative to Figure 1 The arrangement of the temperature control plate 101 shown makes it possible overall to achieve a very low height of the temperature control device 100 , so that the available installation space in or below the battery holder can be used particularly effectively.

[0128] Therefore, it is possible to ensure that the temperature control device 100 has a space-saving design while ensuring the sealing requirements for the fluid process connection points within the temperature control device 100 and sufficient fluidity of the temperature control fluid through the temperature control device 100.

[0129] According to the first embodiment Figure 1 For more details of the temperature control device 100 shown, refer to the following Figure 2 , 3A , 3B and 3C.

[0130] Figure 2 FIG. 1 is a perspective view of the temperature control device according to the first embodiment at a second viewing angle. Figure 1 Compared with the first perspective shown, Figure 2 The temperature control device 100 shown in the second viewing angle is rotated 180° along the longitudinal direction 109 - 1 of the temperature control plate 101 .

[0131] exist Figure 2 In the second perspective, the fluid channel 103 is not shown due to perspective, but the connecting element 105 and the connecting member 107 are shown. For more details of the temperature control device 100, refer to Figure 1 , 3A , 3B and 3C.

[0132] Figure 3A , 3B 3C is a perspective view showing a temperature control device according to the first embodiment in a partially illustrated manner.

[0133] exist Figure 3A In FIG. 1 , the temperature control plate 101 is shown, but the connecting element 105 is not shown and the connecting piece 107 is not shown. Figure 3B In FIG. 1 , the temperature control plate 101 and part of the connecting element 105 are shown, but the connecting piece 107 is not shown. Figure 3C The temperature control plate 101 , the connecting element 105 and the connecting piece 107 are shown.

[0134] from Figure 3A and 3B 1 and 2. A channel opening 103-3 of the fluid channel 103 can be seen in the figure, through which a fluid can be introduced or discharged into the fluid channel 103. The channel opening 103-3 is formed in the second surface 101-2 of the temperature control plate 101, and the fluid channel 103 is formed as a protrusion of the second surface 101-2 of the temperature control plate 101 extending along the temperature control plate 101. The fluid channel 103 in the shape of a protrusion extends in particular along the central area 101-5 of the temperature control plate 101.

[0135] Here, the temperature control plate 101, in particular the second surface 101-2, in particular has a contact area 111, in which the passage opening 103-3 is formed, and in which Figure 3A The contact region 111 is particularly advantageously shown in FIG. The contact region 111 is arranged in particular in an edge region 101 - 6 of the temperature control plate 101 , which extends from a plate edge 101 - 7 of the temperature control plate 101 .

[0136] from Figure 3B 1, it can be seen that the connecting element 105, in particular the element housing 105-1 of the connecting element 105, has an element contact area 113, which is connected in a fluid-tight manner to the contact area 111 of the temperature control plate 101. In this case, a first element opening 115 is formed in the element contact area 113, which is connected in a fluid-tight manner to the channel opening 103-3.

[0137] The first element opening 115 is arranged in alignment with the passage opening 103-3. The first element opening 115 and the passage opening 103-3 are in particular shaped as elongated holes.

[0138] Figure 3A It is further shown that the fluid channel 103 in the contact area 111 has a lower channel height 103 - 1 than outside the contact area 111 , and the fluid channel 103 in the contact area 111 has a larger channel width 103 - 2 than outside the contact area 111 .

[0139] By flattening the contact region 111 , the structural height of the entire temperature control device 100 can be advantageously reduced.

[0140] Figure 3A It is further shown that the temperature control plate 101, in particular the contact area 111, in particular has a sealing seat 111-1 around the passage opening 103-3, in which a sealing element 112, in particular a sealing ring, is accommodated to ensure a fluid-tight connection between the passage opening 103-3 and the first element opening 115. The use of the sealing element 112 is optional.

[0141] Figure 3B It is also shown that the connecting element 105, in particular the element housing 105-1 of the connecting element 105, has a second element opening 117, which is connected to the connecting piece 107 ( Figure 3B In particular, the first element opening 115 and the second element opening 117 are arranged on the same side of the element housing 105 - 1 , in particular on a housing contact side 119 of the element housing 105 - 1 that is in contact with the temperature control plate 101 .

[0142] The second element opening 117 is in particular shaped as a circular hole.

[0143] Figure 3B It is also shown that the element housing 105-1 has a first housing sub-region 121-1 in which the first element opening 115 is formed and a second housing sub-region 121-2 in which the second element opening 117 is formed. In particular, the first housing sub-region 121-1 has a larger volume than the second housing sub-region 121-2. In particular, the first housing sub-region 121-1 is wider and / or longer than the second housing sub-region 121-2.

[0144] from Figure 3B It can also be seen that the connecting element 105, in particular the element housing 105-1, in particular the second housing sub-region 121-2, protrudes beyond the plate edge 101-7 of the temperature control plate 101. Therefore, in particular the second element opening 117 is arranged outside the temperature control plate 101. Thus, for example Figure 3C It can be seen that the connection piece 107 received in the second element opening 117 is also arranged outside the temperature control plate 101 .

[0145] from Figure 3B It can also be seen that the first housing sub-region 121-1 of the element housing 105-1 of the connecting element 105 rests on the contact area 111 of the temperature control plate 101, and the second housing sub-region 121-2 of the element housing 105-1 of the connecting element 105 does not rest on the contact area 111, but is outside the contact area 111 on the temperature control plate 101.

[0146] Therefore, the second housing sub-region 121-2 has a greater height than the first housing sub-region 121-1. In particular, a sub-region step 121-3 is arranged between the first housing sub-region 121-1 and the second housing sub-region 121-2, by which the housing contact side 119 of the second housing sub-region 121-2 is displaced in the direction of the temperature control plate 101 relative to the housing contact side 119 of the first housing sub-region 121-1.

[0147] from Figure 3B It can also be seen that the connecting element 105, in particular the element housing 105-1, in particular has a third element opening 123, and the connecting element 105 has a housing cover 131 (in Figure 3B The housing cover 131 is not shown in the figure, which is connected to the element housing 105-1 and closes the third element opening 123 in a fluid-tight manner. Figure 3C Shown in.

[0148] A fluid-tight closure of the element housing 105-1 of the connecting element 105 is thereby ensured. In particular, the element housing 105-1 has a housing attachment 105-2 which at least partially surrounds the third element opening 123 and on which the housing cover 131 can be placed.

[0149] The connection options between the connecting element 105 and the temperature control plate 101 include in particular a press-fit, form-fit and / or material-bonded connection, in particular connecting the connecting element 105 to the temperature control plate 101 by screwing, crimping, gluing and / or welding.

[0150] from Figure 3A As can be seen in FIG. 1 , the temperature control plate 101 and the connecting element 105 are connected, in particular, by a force-fit screw connection. In this case, in particular close to the contact area 111, a plurality of fastening elements 125, in particular screws, are arranged, which are connected to a fastening flange 127 of the connecting element 105, which protrudes above the element contact area 113 and the contact area 111, as shown in FIG. Figure 3B In particular, a fastening element 125, in particular a screw, is guided through a flange opening 127-1 of a fastening flange 127 and is secured by a further fastening element 129, in particular a nut ( Figure 3A , not shown in 3B and 3C) are fastened.

[0151] In particular, the fastening flanges 127 are arranged on both sides of the first element opening 115 on the element housing 105 - 1 of the connecting element 105 .

[0152] Figure 3C Basically corresponds to Figure 1 , and Figure 3B In contrast, the connecting piece 107 is accommodated in a fluid-tight manner in the second element opening 117 of the connecting element 105. The housing cover 131 is connected in a fluid-tight manner to the third element opening 123 of the connecting element 105. For further structural details, reference is made to what has already been provided.

[0153] The following is a brief description of the Figure 3C The temperature control plate 101 shown in the figure has individual method steps, wherein the connecting element 105 is formed in particular during a milling process and is thus formed as a milled connecting element 105. In a first method step, as Figure 3A As shown, the fastening element 125 (especially a screw) is welded to the temperature control plate 101. In a second method step, as shown in FIG. Figure 3B As shown, the sealing element 112 is accommodated in the sealing seat 111 - 1 .

[0154] In the third method step, if Figure 3BAs shown, the connecting element 105 is placed on the temperature control plate 101. In the fourth method step, as shown in FIG. Figure 3C As shown, the connecting piece 107 is welded to the connecting element 105 from the inside.

[0155] In the fifth method step, Figure 3C As shown, the housing cover 131 is glued and / or welded to the third element opening 123. In a sixth method step, as shown in FIG. Figure 3C Not shown in the figure, a further fastening element 129 , in particular a nut, is screwed onto the fastening element 125 , in particular a screw.

[0156] Figure 4A , 4B 4C show a partial representation of a perspective view of a temperature control device according to a second embodiment.

[0157] Figure 4A A temperature control plate 101 with a connecting element 105 according to a second embodiment is shown. For the design of the temperature control plate 101 and the fluid channel 103, reference is made to the above statements regarding the first embodiment. The connecting element 105 is designed in particular as a deep-drawn connecting element 105 and is connected in a fluid-tight manner to the channel opening 103-3 of the fluid channel 103, which is only Figure 4A It is schematically shown in FIG.

[0158] In particular, the first element opening 115 arranged in the first housing subregion 121 - 1 of the element housing 105 - 1 of the connecting element 105 is connected to the passage opening 103 - 3 in a fluid-tight manner. Figure 4A , 4B In the second embodiment shown in FIG. 4C , no sealing element 112 is arranged in the contact area 111 of the temperature control plate 101 , but the housing contact side 119 of the first housing subarea 121 - 1 of the element housing 105 - 1 is directly connected to the contact area 111 in a fluid-tight manner, in particular directly welded in a fluid-tight manner. The corresponding first weld seam 133 - 1 is Figure 4A Shown in.

[0159] The first weld seam 133 - 1 is designed in particular as a first weld seam 133 - 1 which surrounds the element opening 115 and the passage opening 103 - 3 , so that in addition to the material fastening, a fluid-tight seal is also ensured by the surrounding first weld seam 133 - 1 .

[0160] Furthermore, in particular the housing contact side 119 of the second housing subregion 121-2 of the element housing 105-1 is not connected to the contact region 111 itself in a fluid-tight manner, but is directly connected outside the contact region 111, in particular at the edge region 101-6 of the temperature control plate 101, in particular welded to the temperature control plate 101 in a fluid-tight manner. The corresponding second weld seam 133-2 is Figure 4A Shown in.

[0161] In the element housing 105 - 1 of the connecting element 105 , in particular in the housing contact side 119 of the second housing subregion 121 - 2 of the element housing 105 - 1 , a second element opening 117 is formed which is connected to the connecting piece 107 in a fluid-tight manner, in particular welded.

[0162] As in the first embodiment, Figure 4A , 4B As shown in FIGS. 4C , the connecting element 105 according to the second embodiment also protrudes beyond the plate edge 101 - 7 of the temperature control plate 101 . The connecting piece 107 thus extends to the outside of the temperature control plate 101 .

[0163] Furthermore, the element housing 105 - 1 of the connecting element 105 has a third element opening 123 , which is arranged in particular on a side of the element housing 105 - 1 facing away from the first and second element openings 115 , 117 . Figure 4B and 4C It can be seen that the third element opening 123 is closed in a fluid-tight manner by the housing cover 131 .

[0164] Figure 4B A cross section through the temperature control plate 101 , through the connecting element 105 and through the connecting piece 107 is shown.

[0165] from Figure 4B It can be seen, for example, that the channel height 103-1 of the fluid channel 103 in the contact area 111 is lower than the channel height outside the contact area 111. Figure 4B It cannot be seen from the illustration that the channel width 103 - 2 of the fluid channel 103 in the contact area 111 is also greater than the channel width outside the contact area 111 .

[0166] from Figure 4B It can also be seen that the temperature control plate 101 is designed as an at least partially double-layer temperature control plate 101, which has a first sub-plate 101-3 and a second sub-plate 101-4. The first sub-plate 101-3 forms the first surface 101-1 of the temperature control plate 101, and the second sub-plate 101-4 forms the second surface 101-2 of the temperature control plate 101.

[0167] from Figure 4B It can be seen that the fluid channel 103 is bounded by the first surface 101-1 and the second surface 101-2. Here, the second surface 101-2 that defines the fluid channel 103 includes a protrusion extending along the temperature control plate 101, in particular along the central area 101-5 of the temperature control plate 101. The channel opening 103-3 is formed in the second surface 101-2, in particular in the contact area 111 of the temperature control plate 101.

[0168] Figure 4B Also shown is the aligned arrangement between the first element opening 115 of the first housing subregion 121 - 1 of the connecting element 105 and the passage opening 103 - 3 , and the fluid-tight fastening of the connecting element 105 to the temperature control plate 101 by means of the first weld seam 133 - 1 .

[0169] Furthermore, the second housing subregion 121 - 2 of the connecting element 105 is fastened to the temperature control plate 101 via a second weld seam 133 - 2 .

[0170] Figure 4B It is also shown that the connecting piece 107 received in the second element opening 117 of the element housing 105 - 1 has a connecting flange 107 - 2 which abuts against the housing contact side 119 of the second housing subregion 121 - 2 of the element housing 105 - 1 or is in particular connected thereto in a materially bonded manner.

[0171] Figure 4C The top view shows Figure 4B The temperature control plate 101, the connecting element 105 and the connecting piece 107 are shown in FIG.

Claims

1. A temperature control device (100) for controlling the temperature of a plurality of battery modules that can be accommodated in a battery holder of an electric vehicle, characterized in that: The temperature control device (100) is capable of being thermally coupled to the plurality of battery modules, and the temperature control device (100) comprises: A temperature control plate (101) for controlling the temperature of the plurality of battery modules, the temperature control plate (101) having surfaces (101-1, 101-2), the temperature control plate (101) having a fluid channel (103), a temperature control fluid can flow through the fluid channel (103) to control the temperature of the battery modules, the fluid channel (103) having a channel opening (103-3), and a connecting element (105) connected to the channel opening (103-3) in a fluid-tight manner, the connecting element (105) having a connecting piece (107) which can be fluidically connected to a fluid guide to provide a fluid connection between the fluid guide and the fluid channel (103), Wherein, the connecting member (107) extends at a certain angle relative to the surface (101-1, 101-2) of the temperature control plate (101); wherein the connecting element (105) is arranged on the surface of the temperature control plate (101), and the connecting element (105) protrudes beyond the plate edge of the temperature control plate (101), wherein the connecting piece (107) of the connecting element (105) is arranged outside the temperature control plate (101); The connecting element (105) has an element housing (105-1), the element housing has a third element opening (123), and the connecting element (105) has a housing cover (131), which is connected to the element housing (105-1) and closes the third element opening (123) in a fluid-tight manner; The temperature control plate (101) is an at least partially double-layered temperature control plate (101), which has a first surface (101-1) and a second surface (101-2) for defining the fluid channel (103), and the channel opening (103-3) is formed in the second surface (101-2).

2. The temperature control device (100) according to claim 1, characterized in that: The connecting member (107) is formed integrally with the connecting element (105), or The connecting piece (107) is connected to the connecting element (105) in a material-bonded, press-fit and / or form-fitting manner.

3. The temperature control device (100) according to claim 1 or 2, characterized in that: The channel opening (103-3) of the fluid channel (103) is arranged at the surface (101-1, 101-2), and the connecting element (105) is arranged at the surface (101-1, 101-2).

4. The temperature control device (100) according to claim 3, characterized in that: The channel opening (103-3) of the fluid channel (103) is arranged at the first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101), and the connecting element (105) is arranged at the first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101).

5. The temperature control device (100) according to claim 1 or 2, characterized in that: The connecting element (105) has an element housing (105-1) having a first element opening (115), the first element opening (115) being connected to the channel opening (103-3) in a fluid-tight manner, the first element opening (115-3) and the channel opening (103-3) being arranged in alignment with each other.

6. The temperature control device (100) according to claim 5, characterized in that: The connecting element (105) has an element housing (105-1), the element housing has a second element opening (117), the second element opening is fluid-tightly connected to the connecting piece (107), and the first element opening (115) and the second element opening (117) of the element housing (105-1) are arranged on the same side of the element housing (105-1).

7. The temperature control device (100) according to claim 6, characterized in that: The third element opening is arranged on a side of the element housing that faces away from the first element opening (115) and / or the second element opening (117) of the element housing (105-1).

8. The temperature control device (100) according to claim 1, characterized in that: The first surface (101-1) and / or the second surface (101-2) defining the fluid channel (103) includes a protrusion extending along the temperature control plate (101), and the protrusion extends along a central area (101-5) of the temperature control plate (101).

9. The temperature control device (100) according to claim 1 or 2, characterized in that: The connecting element (105) is connected to the temperature control plate (101) by means of a press fit, a form fit and / or a material bond.

10. The temperature control device (100) according to claim 9, characterized in that: The connection element (105) is connected to the temperature control plate (101) by screwing, crimping, gluing and / or welding.

11. The temperature control device (100) according to claim 9, characterized in that: The element housing (105-1) of the connecting element (105) is connected to the first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101) in a press-fit, form-fit and / or material-bonded manner.

12. The temperature control device (100) according to claim 11, characterized in that: The element housing (105-1) of the connecting element (105) is connected to the first surface (101-1) and / or the second surface (101-2) by means of threading, crimping, gluing and / or welding.

13. The temperature control device (100) according to claim 5, characterized in that: The temperature control plate (101) has a contact area (111) which defines the fluid channel (103), the channel opening (103-3) is formed in the contact area (111), the contact area (111) is arranged in an edge area (101-6) of the temperature control plate (101), and the connecting element (105) has an element contact area (113) which is fluid-tightly connected to the contact area (111) of the temperature control plate (101).

14. The temperature control device (100) according to claim 13, characterized in that: The first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101) has the contact area (111), the element housing (105-1) of the connecting element (105) has the element contact area (113), and the first element opening (115) is formed in the element contact area (113).

15. The temperature control device (100) according to claim 13 or 14, characterized in that: The channel height (103-1) of the fluid channel (103) in the contact area (111) is lower than the channel height outside the contact area (111), and / or the channel width (103-2) of the fluid channel (103) in the contact area (111) is larger than the channel width outside the contact area (111).

16. The temperature control device (100) according to claim 1, characterized in that: The connecting element (105) has at least one fastening flange (127) which is fastened to the temperature control plate (101).

17. The temperature control device (100) according to claim 1, characterized in that: The element housing (105-1) of the connecting element (105) has at least one fastening flange (127), which is fastened to the first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101).

18. The temperature control device (100) according to claim 16, characterized in that: The fastening flange (127) has at least one flange opening (127-1), at least one fastening element (125) is fastened to the temperature control plate (101), the fastening element (125) is guided through the flange opening (127-1), and another fastening element (129-1) is fastened to the fastening element (125) guided through the flange opening (127-1).

19. The temperature control device (100) according to claim 17, characterized in that: The fastening flange (127) has at least one flange opening (127-1), at least one fastening element (125) is fastened to the first surface (101-1) and / or the second surface (101-2) of the temperature control plate (101), the fastening element (125) is guided through the flange opening (127-1), and another fastening element (129-1) is fastened to the fastening element (125) guided through the flange opening (127-1).

20. The temperature control device (100) according to claim 18 or 19, characterized in that: The at least one fastening element (125) is a fastening screw, and the other fastening element (129-1) is a fastening nut.

21. The temperature control device (100) according to claim 5, characterized in that: The temperature control plate (101) has a sealing seat (111-1) surrounding the channel opening (103-3), and / or the connecting element (105) has another sealing seat (111-1) surrounding the first element opening (115), and the temperature control device (100) has a sealing element (112) accommodated in the sealing seat (111-1) and / or the other sealing seat (111-1) to ensure a fluid-tight connection between the channel opening (103-3) and the connecting element (105).

22. The temperature control device (100) according to claim 5, characterized in that: The contact area (111) of the temperature control plate (101) has a sealing seat (111-1) surrounding the channel opening (103-3), and / or the element contact area (113) of the element housing (105-1) of the connecting element (105) has another sealing seat (111-1) surrounding the first element opening (115), and the temperature control device (100) has a sealing element (112) which is accommodated in the sealing seat (111-1) and / or the other sealing seat (111-1) to ensure a fluid-tight connection between the channel opening (103-3) and the first element opening (115).

23. The temperature control device (100) according to claim 1 or 2, characterized in that: The connecting element (105) is formed as a milled or deep-drawn connecting element (105).

24. The temperature control device (100) according to claim 1 or 2, characterized in that: The temperature control device has a battery seat for accommodating the battery module, and the temperature control board (101) is arranged inside or below the battery seat and attached to the battery seat.

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