Method for joining at least one temperature-control-medium nozzle to a temperature-control plate through which a temperature-control medium can flow

Abstract

The invention relates to a method for joining at least one temperature-control-medium nozzle (3) to a temperature-control plate (1) through which a temperature-control medium can flow, comprising the following measures: a) providing a first plate part (2a), in which a channel structure (4) through which a temperature-control medium can flow is formed, and a second plate part (2b) for joining to the first plate part (2a) and for covering the channel structure (4), wherein the two plate parts (2a, 2b) are designed and adapted to each other in such a way that, with the plate parts (2a, 2b) joined together, at least one opening (6) fluidically communicating with the channel structure (4) is formed in a circumferential side (5) of the temperature-control plate (1) formed by both plate parts (2a, 2b), b) providing the temperature-control-medium nozzle (3), which extends along an axial direction (A), is made of a plastics material and, at one (7a) of its two axial ends (7a, 7b), has a flange portion (8) designed to complement the opening (6) and having at least one outwardly protruding, preferably nose-like projection (9a, 9b) for fixing the temperature-control-medium nozzle (3) in the opening (6), c) integrally connecting the flange portion (8) arranged in the opening (6), including the at least one projection (9a, 9b), to the two plate parts (3a, 3b), and integrally connecting the two plate parts (2a, 2b) to each other.

Description

[0001] Method for joining at least one temperature control nozzle to a temperature control plate through which a temperature control medium can flow

[0002] The present invention relates to a method for joining at least one temperature control medium nozzle to a temperature control plate through which a temperature control medium can flow. The invention further relates to a temperature control plate and a battery assembly comprising such a temperature control plate.

[0003] Conventional temperature control plates for battery temperature control usually consist of two metal plate parts that are joined together. A channel structure is embossed into one of the two plates, through which a temperature control medium can flow, while the other of the two plate parts can be flat, covering and sealing the channel structure. Alternatively, the other plate part can also have a channel structure. Corresponding connections for introducing the temperature control medium into the channel structure or for discharging it from the channel structure are often designed as nozzles in the form of temperature control medium nozzles.

[0004] For space-saving reasons, such temperature control nozzles often have to be arranged on a peripheral side of the temperature control plate formed by the two plate parts. However, forming an opening in the peripheral side of the temperature control plate such that such a temperature control nozzle can be inserted and joined to the two plate parts in a fluid-tight manner often proves to be technically problematic and therefore complex to implement. In particular, it proves difficult to seal gaps that remain after the temperature control nozzle has been inserted into the opening between the temperature control nozzle and the two plates in a fluid-tight manner. It is therefore an object of the present invention to create an improved method for joining a temperature control nozzle to a temperature control plate through which a temperature control medium can flow, in which method the aforementioned disadvantages are at least partially, preferably completely, eliminated.

[0005] This object is achieved by the subject matter of the independent patent claims. Preferred embodiments are the subject matter of the dependent claims.

[0006] The basic idea of ​​the invention is therefore to form an opening in the two plate parts of a temperature control plate on the circumference, which is designed to accommodate a temperature control nozzle through which the temperature control medium can flow. Such an opening can be created by opposing bulges of the two plate parts in the region of the circumferential side of the temperature control plate. In the method according to the invention, a temperature control nozzle is inserted into this opening.

[0007] In contrast to temperature control nozzles made of metal, with a temperature control nozzle made of plastic - particularly with the aid of a suitable injection molding tool - as implemented in the inventive solution presented here, at least one lug protruding outward from the flange section can be created on a flange section of the temperature control nozzle to be inserted into the opening. This lug closes the gaps remaining after the temperature control nozzle has been inserted into the opening between the temperature control nozzle and an opening edge formed by the two plate parts and delimiting the opening. By bonding said lug to the two plate parts, a fluid-tight seal of the opening can thus be achieved.An undesirable leakage of tempering medium through a gap between the tempering medium nozzle inserted into the opening and a gap remaining between the inserted tempering medium nozzle and the plate parts is thus excluded.

[0008] Following the inventive concept explained above, the method according to the invention serves to join at least one temperature control nozzle to a temperature control plate through which a temperature control medium can flow. The method according to the invention comprises three mandatory steps a), b), and c).

[0009] According to measure a), a first plate part is provided in which a channel structure through which a temperature control medium can flow is formed. Likewise, in measure a), a second plate part is provided for joining to the first plate part and for covering the channel structure. The two plate parts are designed and coordinated with one another such that, when the plate parts are joined together, at least one opening that communicates fluidically with the channel structure is formed in a peripheral side of the temperature control plate formed by both plate parts. In further developments, two or more such openings can also be provided, which are arranged at a distance from one another on the peripheral side. Further openings can also be formed in the first plate part and in the second plate part.

[0010] In measure b), a temperature control nozzle made of a plastic, preferably polypropylene (PP) or polyamide (PA), is provided. The temperature control nozzle preferably extends along an axial direction. The temperature control nozzle can therefore be longitudinally shaped and extend in a straight line. However, it is also possible for the temperature control nozzle to be curved or angled, in particular with a first and a second nozzle section that merge into one another and are arranged at an angle, particularly preferably of 90°, to one another.

[0011] The temperature control nozzle has a flange section at one of its two axial ends, complementary to the opening. The flange section, in turn, has at least one, preferably nose-like, projection projecting outward from the temperature control nozzle, which is designed to secure the temperature control nozzle in the opening. The projection can be integrally formed on the flange section, i.e., the flange section and the projection are formed in one piece and from the same material. The projection can taper radially outward, away from the flange section.

[0012] In step c), the flange section arranged in the opening, including the at least one projection, is firmly bonded to the two plate parts. Likewise, in step c), the two plate parts are firmly bonded to each other.

[0013] In a preferred embodiment, the two plate parts are joined together by a material fit before the flange section is joined to the two plate parts, i.e. in a separate work step. In this embodiment, the two plate parts, when joined to one another, form a receptacle for receiving the flange section in the area of ​​the opening. The flange section is therefore only arranged in this opening in a further separate work step and then joined to the two plate parts by a material fit. This embodiment allows the two plate parts to be joined together initially by means of a soldered or welded connection without the resulting high joining temperatures, even in the area of ​​the opening, causing damage to the temperature control nozzle made of the plastic material.This embodiment proves to be particularly advantageous if one plate material of the two plate parts is a metal.

[0014] In a preferred embodiment, at least the material-to-material connection of the flange section of the temperature control nozzle to the two plate parts is achieved by bonding. A suitable adhesive can be used for this purpose. For bonding, the two plate parts and the adhesive can be heated to a joining temperature. After the adhesive has cooled down following heating, it can harden and thus create the desired material-to-material connection of the flange section, including the projection protruding from the flange section, to the two plate parts. A two-component epoxy adhesive or a hotmelt adhesive is particularly suitable.

[0015] Particularly preferably, the bonding of the two plate parts of the temperature control plate can also be achieved by adhesive bonding. For this purpose, the two plate parts and the adhesive can be heated to their own joining temperature, so that after cooling following heating, the desired bonding between the two plate parts is achieved using the cured adhesive.

[0016] The bonding of the temperature control nozzle to the two plate parts and the bonding of both plate parts to one another can preferably be carried out in a single work step. This simplifies and accelerates the joining process. According to another preferred embodiment, the material-to-material connection of at least the flange section to the temperature control plate, in particular to the two plate parts according to measure c), is not carried out by means of an adhesive bond, but by means of thermal joining. During thermal joining, the joining partners, in this case the flange section of the temperature control nozzle and the two plate parts, are heated and pressed together. In this way, a permanently stable and strong connection between the temperature control nozzle and the two plate parts can be created with comparatively little effort.

[0017] Particularly preferably, the thermal joining can comprise melting the temperature control nozzle in the flange section and heating at least the flange section. This requires temporarily heating the plastic material of the temperature control nozzle in the flange section to a joining temperature that is greater than the melting temperature of the plastic material, so that the plastic material in the flange section melts at least locally. After the molten plastic material has hardened, the desired integral connection is realized.

[0018] Particularly expediently, for melting the flange portion, the flange portion and / or at least one plate part, preferably both plate parts, at least in the region of the opening, can be heated to a joining temperature of at least 150°C and / or at most 300°C.

[0019] Particularly preferably, the thermal joining in step c) can comprise pressing the temperature control nozzle with at least one plate part, preferably with both plate parts. Particularly preferably, the pressing and heating can take place simultaneously. Alternatively, however, it can also be provided that the pressing takes place after the heating. According to a further alternative, the pressing can also take place before the heating.

[0020] According to an advantageous development of the method according to the invention, thermal joining takes place without any filler material, in particular without the use of an adhesive. This eliminates the comparatively complex dosing of the filler material or adhesive, and additional time is also not required for the filler material or adhesive to cure. This leads to a significant acceleration of the manufacturing process.

[0021] Particularly expediently, the plate material of the first and / or second plate part can be a metal, preferably aluminum, or, alternatively, a plastic, preferably polypropylene (PP) or polyamide (PA). A combination of both materials is also conceivable, in that one of the two plate parts is made of a metal and the other of the two plate parts is made of a plastic.

[0022] The invention further relates to a temperature control plate for controlling the temperature of a battery, in particular of a motor vehicle, preferably of an electric vehicle. The temperature control plate according to the invention comprises a first plate part and a second plate part, which are materially connected to one another and surround a channel structure through which a temperature control medium can flow. The channel structure can be formed in the first plate part. The second plate part can be designed as a cover which covers the channel structure in a fluid-tight manner. The material of the first plate part can be a plastic, preferably polypropylene (PP) or polyamide (PA), or a metal, preferably aluminum. The material of the second plate part can be a plastic, preferably polypropylene (PP) or polyamide (PA), or a metal, preferably aluminum. An oil is particularly suitable as the temperature control medium.

[0023] At least one opening that communicates fluidically with the channel structure is formed in a peripheral side of the temperature control plate formed by both plate parts. In further developments, however, two or more such openings can also be formed at a distance from one another in the peripheral side. Preferably, the respective opening serves to introduce the temperature control medium into the channel structure or to discharge the coolant from the channel structure after flowing through it. The channel structure can comprise at least one temperature control channel through which the temperature control medium flows. If two or more such temperature control channels are provided, they can basically be arranged in any desired arrangement. In particular, a fluidic parallel or series connection of two or more such temperature control channels can be provided.

[0024] The channel structure can extend laterally across the entire temperature control plate so that heat can be transferred between the temperature control medium flowing through the channel structure and a battery arranged on the temperature control plate. In particular, to cool this battery, the waste heat generated during operation can be transferred to the temperature control medium flowing through the channel structure and thus removed from the battery. The channel structure can be part of a temperature control circuit separate from the temperature control plate, in which the temperature control medium is circulated. Outside the temperature control plate, heat can thus be transferred from the temperature control medium to another liquid or gaseous medium to cool the temperature control medium. If the temperature control medium needs to be heated, heat can be transferred from another medium to the temperature control medium outside the temperature control plate.Such heat transfer can, for example, occur with the aid of a heat exchanger arranged in the temperature-controlled circuit. The temperature control plate according to the invention further comprises a temperature control nozzle made of a plastic, preferably polypropylene (PP) or polyamide (PA), which extends along an axial direction and through which a temperature control medium can flow. At one of its two axial ends, the temperature control nozzle has a flange section which is complementary to the opening provided in the circumferential side of the temperature control plate and which is integrally connected to the two plate parts and is arranged in the opening. The temperature control nozzle can comprise a hollow, in particular hollow-cylindrical, tubular body through which the temperature control medium can flow, or can be designed as such a tubular body.

[0025] According to the invention, the flange section has at least one outwardly projecting, preferably nose-like, projection, which is preferably designed in a nose-like manner, i.e. can in particular have the geometric shape of a nose. The projection can be formed integrally on the flange section, i.e. in this case the flange section and the projection are formed in one piece and from the same material. The projection can taper radially outwards, away from the flange section. Said projection is supported on the two plate parts. In this case, this projection closes off, preferably in a fluid-tight manner, a space formed between the flange section and the two plate parts, which forms part of the opening provided in the peripheral side of the temperature control plate.

[0026] In a preferred embodiment, the opening provided in the peripheral side of the temperature control plate can be partially delimited by a second bulge provided in the first plate part and protruding from the second plate part path, and partially by a second bulge provided in the second plate part and protruding away from the first plate part. In this embodiment, the two bulges together form a receptacle of the temperature control plate for the temperature control medium nozzle, in which the flange section of the temperature control medium nozzle, including the at least one projection, is received.

[0027] The integral connection of the flange section, including the at least one projection, to the two plate parts can expediently be an adhesive bond. Such an adhesive bond can be created using a suitable adhesive and ensures a permanently stable, firm connection between the two plate parts and the temperature control medium nozzle. Alternatively, the integral connection of the flange section, including the at least one projection, to the two plate parts can be formed without any additional material, in particular without any adhesive. Such a filler-material-free connection can be created in particular using the thermal joining process explained above. Since the use of an additional material, in particular an adhesive, is dispensed with, this type of liquid-material connection is particularly simple and therefore cost-effective to produce.In particular, the comparatively complex dosing of filler material or adhesive is eliminated, and additional curing time is also eliminated. This significantly accelerates the manufacturing process.

[0028] The flange section particularly preferably has at least two, preferably opposite, nose-like projections, which are both supported on both plate parts. Since, when the temperature control medium nozzle is inserted into the opening, two opposite gaps are generally formed between the flange section and the two plate parts, these two gaps can each be closed by one of the two projections. In a further preferred embodiment, the opening can be enclosed by an opening edge which is formed partly by the first plate and partly by the second plate. In this development, the at least one projection protruding from the flange section is supported on the opening edge at a transition from the first to the second plate.

[0029] According to an advantageous further development, two mutually opposite transitions and correspondingly two, preferably nose-like, projections can be provided, so that each of the transitions is assigned a projection.

[0030] In another preferred embodiment, the flange portion, viewed in a plan view along the axial direction, can have the geometry of an elongated hole, an oval, or a rectangle, preferably with rounded corners. In this embodiment, the two, preferably nose-like, projections are arranged at opposite longitudinal ends of the elongated hole, oval, or rectangle.

[0031] Particularly expediently, the temperature control medium nozzle can comprise one, preferably exactly one, tubular body through which the temperature control medium can flow.

[0032] In an alternative advantageous development, however, it is also conceivable that the temperature control medium nozzle comprises two tubular bodies, preferably arranged at a distance from one another, which have a common flange section and through which the temperature control medium can flow fluidically separately from one another.

[0033] Particularly preferably, the temperature control medium nozzle or the first plate part and / or the second plate part can be a plastic injection-molded part. The invention further relates to a battery arrangement for a motor vehicle, in particular for an electric vehicle. The battery arrangement according to the invention comprises at least one rechargeable battery, in particular for supplying an electric drive system of the motor vehicle or electric vehicle with electrical energy. The battery generates waste heat during operation. For temperature control of the battery and in particular for dissipating the waste heat generated during operation, the battery arrangement according to the invention comprises at least one temperature control plate according to the invention as presented above. Thus, the advantages of the temperature control plate according to the invention and the method according to the invention explained above are transferred to the battery arrangement according to the invention.In the battery arrangement according to the invention, at least one battery is arranged on the first plate part or on the second plate part for thermal coupling to the temperature control medium guided through the channel structure of the temperature control plate. This battery is preferably arranged on the plate part designed as a cover plate.

[0034] In another preferred embodiment, the second plate part is formed as a cover plate made of a metal, preferably aluminum. Such a cover plate can be manufactured cost-effectively and has high thermal conductivity, so that the temperature control medium guided through the channel structure can be thermally coupled particularly well to the battery to be temperature-controlled.

[0035] Further important features and advantages of the invention emerge from the dependent claims, the drawings, and the associated description of the figures with reference to the drawings. It is understood that the features mentioned above and those to be explained below can be used not only in the respective combinations specified, but also in other combinations or on their own, without departing from the scope of the present invention.

[0036] Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.

[0037] They show, schematically:

[0038] Fig. 1 is a partial perspective view of an example of a tempering plate according to the invention with two plate parts,

[0039] Fig. 2 the tempering plate of Figure 1 in another perspective

[0040] View in which, contrary to the representation in Figure 1, a temperature control nozzle arranged on the two plate parts of the temperature control plate can be seen,

[0041] Fig.3 a detailed view of Figure 2 in the area of ​​the temperature control nozzle,

[0042] Fig. 4a, 4b show the temperature control nozzles of Figures 2 and 3 in separate representation and viewed from different perspectives,

[0043] Fig. 5 a further development of the temperature control nozzle of Figures 4a,

[0044] 4b with two separate tubular bodies, Fig. 6 a flow diagram explaining the method according to the invention.

[0045] Figure 1 shows a partial perspective view of an example of a temperature control plate 1 according to the invention. The temperature control plate 1 comprises a first plate part 2a and a second plate part 2b, which are materially connected to one another and surround a channel structure 4 through which a temperature control medium can flow. In the perspective shown in Figure 1, the second plate part 2b is largely concealed by the first plate part 2a. The channel structure 4 can be formed in the first plate part 2a, as shown. The second plate part 2b can be designed as a cover which covers the channel structure 4 in a fluid-tight manner. The channel structure 4 itself can have a plurality of temperature control channels 21 through which the temperature control medium can flow. If two or more such temperature control channels 21 are provided, they can basically be formed in any desired arrangement in the temperature control plate 1.For example, the channel structure 4 can be formed by a fluidic parallel or series connection of two or more such tempering channels.

[0046] The channel structure 4 can be part of a temperature control circuit (not shown) that is not part of the temperature control plate 1 and in which the temperature control medium is circulated. Outside the temperature control plate 1, heat can thus be transferred from the temperature control medium to another liquid or gaseous medium to cool the temperature control medium. If the temperature control medium is to be heated, heat can be transferred from the other medium to the temperature control medium outside the temperature control plate 1. Such a heat transfer can be achieved, for example, with the aid of a heat exchanger (not shown) arranged in the temperature control circuit. The channel structure 4 with the temperature control channels 21 can be formed by bulges 17 formed in the first plate part 2a.The channel structure 4 can extend laterally in zones or across the entire temperature control plate 1, so that heat can be transferred between the temperature control medium flowing through the channel structure 4 and a battery (not shown) arranged on the temperature control plate 1. Thus, to cool the battery, waste heat generated by the battery during operation can be transferred to the temperature control medium flowing through the channel structure 4 and thus dissipated from the battery. Conversely, to heat the battery, heat can be transferred from the temperature control medium flowing through the channel structure 4 to the battery.

[0047] Figure 2 shows the temperature control plate 1 of Figure 1 in a partial view and from a different perspective than Figure 1. As can be seen from the view in Figure 2, an opening 6 is formed in a peripheral side 5 of the temperature control plate 1 formed by the two plate parts 2a, 2b, which opening communicates fluidically with the channel structure 4. This opening 6 can function as a fluid inlet for introducing the temperature control medium into the channel structure 4 or as a fluid outlet for discharging the temperature control medium from the channel structure 4 after it has flowed through it. In a further development of the example (not shown), two or more such openings can therefore be formed at a distance from one another in the peripheral side 5. For this purpose, a temperature control medium nozzle 3 through which the temperature control medium can flow is arranged in the opening 6.

[0048] As particularly illustrated in Figure 2, the opening 6 is partially defined by a second bulge 11a provided in the first plate part 2a and projecting away from the second plate part 2b, and partially by a second bulge 11b provided in the second plate part 2b and projecting away from the first plate part 2a. The two bulges 11a, 11b together form a receptacle 12 in which the temperature control medium nozzle 3 of the temperature control plate 1 is received.

[0049] Figure 3 is a detailed view of Figure 2 in the area of ​​said opening 6. Figures 4a and 4b each show the temperature control nozzle 3 separately and in different perspective views.

[0050] The temperature control medium nozzle 3 is made of a plastic. According to Figures 2 to 4b, the temperature control medium nozzle 3 extends along an axial direction A. The temperature control medium nozzle 3 can comprise a hollow, in particular hollow-cylindrical, tubular body 15 through which the temperature control medium can flow, or can be designed as such a tubular body 15, which extends axially from a first axial end 7a to a second axial end 7b. A central longitudinal axis M of the temperature control medium nozzle 3 or of the tubular body 15 extends along the axial direction A. A radial direction R of the temperature control medium nozzle 3 or of the tubular body 15 extends perpendicular to the axial direction A away from the central longitudinal axis M. A circumferential direction U of the temperature control nozzle 3 or of the tubular body 15 runs perpendicular to both the radial direction R and the axial direction A around the central longitudinal axis M.

[0051] The temperature control nozzle 3 has, at the first 7a of its two axial ends 7a, 7b, a flange section 8 complementary to the opening 6, which is arranged in the receptacle 12 and thus also in the opening 6 (see Figure 3). As shown, the tubular body 15 can merge into the flange section 8 along the axial direction A toward the first axial end 7a.

[0052] As Figures 4a and 4b illustrate, the flange section 8 has two opposing, nose-like projections 9a, 9b that protrude outward from the temperature control nozzle 3, thus each having the geometric shape of a nose. The two nose-like projections 9a, 9b can taper radially outward.

[0053] As Figures 2 and 3 show, each of the two projections 9a, 9b closes one of two gaps 10a, 10b formed between the flange section 8 and the two plate parts 2a, 2b. These two gaps 10a, 10b each form a part of the opening 6 provided in the peripheral side 5 of the temperature control plate 1. A first gap 10a is arranged between the flange section 8 and the first transition 14a. A second gap 10b is arranged between the flange section 8 and the second transition 14b.

[0054] In the example scenario, the opening 6 or the receptacle 12 is enclosed by an opening edge 13, which is formed partially by the first plate 2a and partially by the second plate 2b. The first projection 9a is arranged in the first intermediate space 10a and closes this intermediate space 10a. The second projection 9b is arranged in the second intermediate space 10b and closes this second intermediate space 10b.

[0055] In the example, a first 9a of the two projections 9a, 9b is supported on the opening edge 13 in the region of a first transition 14a from the first plate 2a to the second plate 2b. Analogously, a second 9b of the two projections 9a, 9b is supported on the opening edge 13 in the region of a second transition 14b from the first plate 2a to the second plate 2b. The two nose-like projections 9a, 9b are therefore each supported on both the first plate part 2a and the second plate part 2b. A tubular body interior 18 delimited by the tubular body 15 communicates fluidically with the channel structure 4 via the opening 6. The temperature control medium can thus be introduced into the tubular body interior 18 via the second axial end 7b of the temperature control medium nozzle 3 and introduced via this into the channel structure 4.

[0056] The temperature control medium nozzle 3 of the temperature control plate 1 according to the invention thus functions as a connecting component to which a fluid line (not shown) through which the temperature control medium can flow can be connected in order to introduce the temperature control medium into the temperature control plate 1 or to discharge it therefrom. Leakage of the temperature control medium is prevented by the projections 9a, 9b arranged in the two intermediate spaces 10a, 10b.

[0057] According to Figures 4a and 4b, the flange portion 8 can have the geometry of an elongated hole 20 in a plan view of the first end 7a along the axial direction A. Here, the two nose-like projections 9a, 9b are arranged at opposite longitudinal ends 16a, 16b of the elongated hole 20 and protrude from the flange portion 8 in or opposite to a longitudinal direction L, which extends perpendicular to the axial direction A along a virtual connecting line between the two longitudinal ends 16a, 16b.

[0058] The flange section 8 with the two projections 9a, 9b is integrally connected to the opening edge 13 in the region of the two transitions 14a, 14b. This integral connection of the flange section 8, including the two projections 9a, 9b, to the two plate parts 2a, 2b can expediently be an adhesive bond. Such an adhesive bond can be created using a suitable adhesive. Alternatively, the integral connection of the flange section 8 to the two plate parts 2a, 2b can be formed free of filler material, i.e., also free of adhesive. Such a filler material- or adhesive-free connection can be created in particular using the thermal joining process explained above, in which the joining partners are heated and pressed together.

[0059] Likewise, the two plate parts 2a, 2b are connected to one another in a material-to-material bond. By means of this material-to-material bond, the two outer edges 19a, 19b of the plate parts 2a, 2b can be firmly and fluid-tightly connected to one another. This material-to-material bond is therefore provided in the region of the peripheral side 5 of the temperature control plate 1. The material-to-material bond between the two plate parts 2a, 2b can expediently be an adhesive bond. Such an adhesive bond can be created using a suitable adhesive. Alternatively, the material-to-material bond between the two plate parts 2a, 2b can also be a soldered or welded connection. This requires that the plate material of both plate parts 2a, 2b is metal. In the example scenario, the temperature control medium nozzle 3 and the first plate part 2a are each a plastic injection-molded part. The second plate part 2b is designed as a cover plate or a cover sheet made of a metal.A battery, which is to be tempered by means of the tempering plate 1, can be arranged on the second plate part 2b. This battery can be thermally coupled via the second plate part 2b to the tempering medium guided through the channel structure 4. To improve the thermal coupling, it is therefore advantageous to choose a metal due to its comparatively high thermal conductivity.

[0060] Figure 5 shows a further development of the temperature control nozzle 3 of Figures 4a, 4b. Here, the temperature control nozzle 3 comprises two tubular bodies 15a, 15b arranged at a distance from one another, which have a common flange section 8 and through which the temperature control medium can flow fluidically separately from one another. Both tubular bodies 15a, 15b can extend at a distance from one another and parallel to one another along the axial direction A, as shown. With a suitable fluidic connection to the channel structure 4, a first 15a of the two tubular bodies 15a, 15b can function as a fluid inlet for introducing the temperature control medium into the temperature control plate 1 and a second 15b of the two tubular bodies 15a, 15b can function as a fluid outlet for discharging the temperature control medium from the temperature control plate 1 after it has flowed through the channel structure 4.

[0061] In the following, the method according to the invention for producing a temperature control plate 1 according to the invention is explained by way of example using the flow diagram in Figure 6. The method according to the invention comprises three mandatory measures a), b) and c).

[0062] According to measure a), a first plate part 2a is provided, in which a channel structure 4 through which a temperature control medium can flow is formed. Likewise, in measure a), a second plate part 2b is provided for joining to the first plate part 2a and for covering the channel structure 4. The two plate parts 2a, 2b are designed and coordinated with one another such that, when the plate parts 2a, 2b are joined to one another, at least one opening 6 that communicates fluidically with the channel structure 4 is formed in the peripheral side 5 of the temperature control plate 1 formed by both plate parts 2a, 2b. In further developments, two or more such openings 6 can also be provided, which are arranged at a distance from one another in the peripheral side 5. The plate material of the first or second plate part 2a, 2b can be a metal or, alternatively, a plastic.A combination of materials is therefore also conceivable in that one of the two plate parts is made of a metal and the other of the two plate parts 2a, 2b is made of a plastic. In measure b), the temperature control nozzle 3 extending along an axial direction A is made of a plastic. The temperature control nozzle 3 has, at one 7a of its two axial ends 7a, 7b, a flange section 8 designed complementary to the opening 6. The flange section 8 in turn has at least one preferably nose-like projection 9a, 9b projecting outwards from the temperature control nozzle 3, which is designed to fix the temperature control nozzle 3 in the opening 6. In measure c), the flange section 8 arranged in the opening 6, including the two projections 9a, 9b, is connected to the two plate parts 2a, 2b.Likewise, in measure c), the two plate parts 2a, 2b are joined together along their outer edges 19a, 19b.

[0063] In this example, the flange section 8 of the temperature control nozzle 3 is bonded to the two plate parts 2a, 2b by adhesive bonding. For bonding, the two plate parts 2a, 2b and the adhesive are heated to a joining temperature. After the adhesive has cooled down after heating, it can cure. This creates the desired bond between the flange section and the two plate parts.

[0064] In a manner analogous to that described above, the outer edges 19a, 19b of the two plate parts 2a, 2b can also be joined together by means of adhesive bonding. For this purpose, the two plate parts 2a, 2b and the adhesive can also be heated to their own joining temperature, so that after cooling following the heating, the desired bonded connection between the two plate parts 2a, 2b is created using the then cured adhesive. The bonded connection of the two plate parts 2a, 2b can take place before the bonded connection of the flange section 8 to the two plate parts 2a, 2b, i.e., as indicated in the flow diagram in Figure 6, in a separate work step c1). The two plate parts 2a, 2b, in a connected state, then form the receptacle 12 for receiving the flange section 8 in the region of the opening 6.Only in a further separate work step c2) is the flange section 8 arranged in this opening 6 and there connected in a material-to-material manner to the two plate parts 2a, 2b.

[0065] If one of the plate materials of each of the two plate parts 2a, 2b is metal, the two plate parts 2a, 2b can be joined together by means of a soldering or welding connection without the resulting high joining temperatures also causing damage to the temperature control nozzle 3 made of the plastic material in the area of ​​the opening; this is because the temperature control nozzle 3 is only joined to the two plate parts 2a, 2b after they have been soldered or welded.

[0066] If the material-to-material connection of the flange section 8 to the two plate parts 2a, 2b and the material-to-material connection of the two plate parts 2a, 2b to one another takes place in separate work steps c1) and c2), i.e. one after the other, the material-to-material connection of the flange section 8 to the two plate parts 2a, 2b can be carried out by thermal joining. During thermal joining, the joining partners, i.e. the flange section 8 of the temperature control medium nozzle 3 and the two plate parts 2a, 2b, are heated in a suitable, heatable press tool (not shown) and pressed together. The pressing and heating can take place simultaneously. Alternatively, it can also be provided that the pressing takes place after the heating. According to a further alternative, the pressing can also take place after the heating.In contrast to adhesive bonding, thermal joining takes place without additional material, i.e., in particular, without the use of an adhesive. Preferably, thermal joining may involve melting the temperature control nozzle 3 in the flange section 8 by heating the flange section 8. For this purpose, the plastic material of the temperature control nozzle 3 in the flange section 8 must be temporarily heated to a joining temperature that is greater than the melting temperature of the plastic material of the temperature control nozzle 3, so that it melts at least locally in the flange section 8. In particular, the two nose-like projections 9a, 9b may also be melted. After the molten plastic material has hardened, the desired integral and fluid-tight connection of the flange section 8 to the two plate parts 2a, 2b is created.

[0067] In a particularly advantageous variant of the example, it is also conceivable that the material-to-material connection of the flange section 8 to the two plate parts 2a, 2b and the material-to-material connection of the two plate parts 2a, 2b are carried out in a common work step, i.e. simultaneously, in particular if all the material-to-material connections created are adhesive connections, i.e. adhesive is used both for joining the flange section 8 to the two plate parts 2a, 2b and for joining the two plate parts 2a, 2b to one another.

Claims

Patent claims 1 . Method for joining at least one temperature control medium nozzle (3) to a temperature control plate (1) through which a temperature control medium can flow, comprising the following measures: a) providing a first plate part (2a), in which a channel structure (4) through which a temperature control medium can flow is formed, and a second plate part (2b) for joining to the first plate part (2a) and for covering the channel structure (4), wherein the two plate parts (2a, 2b) are designed and matched to one another such that, when the plate parts (2a, 2b) are joined to one another, at least one opening (6) communicating fluidically with the channel structure (4) is formed in a circumferential side (5) of the temperature control plate (1) formed by both plate parts (2a, 2b), b) providing a temperature control medium nozzle (3) made of a plastic material, preferably extending along an axial direction (A), which at one (7a) of its two, in particular axial, ends (7a,7b) a flange section (8) formed complementary to the opening (6) with at least one outwardly projecting, preferably nose-like, projection (9a, 9b) for fixing the temperature control nozzle (3) in the opening (6), c) materially connecting the flange section (8) arranged in the opening (6), including the at least one projection (9a, 9b), to the two plate parts (3a, 3b) and materially connecting the two plate parts (2a, 2b) to one another.

2. Method according to claim 1, characterized in that the material-to-material connection of the two plate parts (2a, 2b) to one another takes place in a separate work step before the material-to-material connection of the flange section (8) to the two plate parts (2a, 2b), so that the two plate parts (2a, 2b) in a state connected to one another form a receptacle (12) for receiving the flange section (8) in the region of the opening (6).

3. Method according to claim 1 or 2, characterized in that at least the material connection of the flange section to the two plate parts (2a, 2b) is carried out by means of gluing.

4. Method according to one of claims 1 to 3, characterized in that the material connection of the two plate parts (2a, 2b) of the temperature control plate (1) to one another is carried out by means of gluing.

5. Method according to claim 1, 2 or 4, characterized in that the material connection of at least the flange section (8) to the two plate parts (2a, 2b) according to measure c) is carried out by means of thermal joining.

6. The method according to claim 5, characterized in that the thermal joining comprises melting the temperature control nozzle (3) in the flange section (8) and heating at least the flange section (8).

7. Method according to claim 6, characterized in that for melting the flange portion (8), the flange portion (8), in particular the at least one projection (9a, 9b), is heated to a joining temperature of at least 150°C and / or at most 300°C.

8. Method according to one of claims 5 to 7, characterized in that the thermal joining in measure c) comprises pressing the temperature control medium nozzle (3) with at least one plate part (2a, 2b), preferably with both plate parts (2a, 2b).

9. A method according to claim 8 and at least according to claim 6, characterized in that the pressing and the heating take place simultaneously; or that the pressing takes place after the heating; 10. Method according to one of claims 5 to 9, characterized in that the thermal joining takes place without additional material, in particular without the use of an adhesive.

11. Method according to one of the preceding claims, characterized in that a plate material of the first and / or second plate part (2a, 2b) is a metal, in particular aluminum, or a plastic, in particular polypropylene (PP) or polyamide (PA).

12. A temperature control plate (1) for controlling the temperature of a battery, in particular of a motor vehicle, preferably of an electric vehicle, comprising a first plate part (1) and a second plate part (6), which are integrally connected to one another and surround a channel structure (4) through which a temperature control medium can flow, wherein at least one opening (6) communicating fluidically with the channel structure (4) is formed in a peripheral side (5) of the temperature control plate formed by both plate parts (2a, 2b), with a temperature control medium nozzle (3) made of a plastic material, which extends along an axial direction (A) and through which a temperature control medium can flow, and which has at one (7a) of its two axial ends (4a, 4b) a flange section (8) complementary to the opening (6), arranged in the opening (5) and integrally connected to the two plate parts (2a, 2b),wherein the flange portion (8) has at least one outwardly projecting, preferably nose-like, projection (9a, 9b) which is supported on the two plate parts and fluid-tightly closes an intermediate space (10a, 10b) formed between the temperature control medium nozzle (3) and the two plate parts (2a, 2b).

13. Temperature control plate according to claim 12, characterized in that the opening (6) is partially delimited by a second bulge (11 a) provided in the first plate part (2a) and protruding away from the second plate part (2b) and partially by a second bulge (11 b) provided in the second plate part (2b) and protruding away from the first plate part (2a), so that the two bulges (11 a, 11 b) form a receptacle (12) of the temperature control plate (1), in which the flange section (8) of the temperature control medium nozzle is received.

14. Temperature control plate according to claim 12 or 13, characterized in that the material-to-material connection of the flange portion (8) to the two plate parts (2a, 2b) is an adhesive connection; or that the material-to-material connection of the flange portion (8) to the two plate parts (2a, 2b) is formed without additional material, in particular without adhesive.

15. Temperature control plate according to one of claims 12 to 14, characterized in that the flange section (8) has two opposing nose-like projections (9a, 9b), which are both supported on both plate parts (2a, 2b) and are arranged in a respective intermediate space (10a, 10b) formed between the flange section (8) and the two plate parts (2a, 2b).

16. Tempering plate according to one of claims 12 to 15, characterized in that - the opening (6) is enclosed by an opening edge (13) which is formed partly by the first plate (2a) and partly by the second plate (2b), - at least one projection (9a, 9b) projecting from the flange portion (8) is supported on the opening edge (13) in the region of a transition (14a, 14b) from the first plate (2a) to the second plate (2b).

17. Tempering plate according to claim 16, characterized in that two opposite transitions (14a, 14b) and two preferably nose-like projections (9a, 9b) are provided.

18. Tempering plate according to one of claims 14 to 17, characterized in that - the flange portion (8) has, in a plan view along the axial direction, the geometry of an elongated hole (13) or an oval or a rectangle, preferably with rounded corners; - the two, preferably nose-like, projections (9a, 9b) are arranged at opposite longitudinal ends (14a, 14b) of the elongated hole or oval or rectangle.

19. Temperature control plate according to one of claims 14 to 18, characterized in that the temperature control medium nozzle (3) comprises one, preferably exactly one, tubular body (15) through which the temperature control medium can flow.

20. Temperature control plate according to one of claims 14 to 18, characterized in that the temperature control medium nozzle (3) comprises two tubular bodies (15a, 15b) which have a common flange section (8) and through which the temperature control medium can flow fluidically separately from one another. 21 . Tempering plate according to one of claims 14 to 20, characterized in that the tempering medium nozzle (3) and / or the first plate part (2a) and / or the second plate part (2b) is / are a plastic injection-molded part made of a plastic, preferably the plastic is polypropylene (PP) or polyamide (PA).

22. Battery arrangement for a motor vehicle, in particular for an electric vehicle, with at least one rechargeable battery which generates waste heat during operation, with at least one temperature control plate (10) according to one of claims 12 to 21, wherein at least one battery for thermal coupling to the temperature control medium guided through the channel structure (7) is arranged on the plate part (1) and / or on the further plate part (6), preferably on the plate part (1, 6) designed as a cover plate (8). *****

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