Temperature control plate and method for manufacturing a temperature control plate

Abstract

To provide a temperature-control plate for battery cooling and a method for manufacturing a temperature-control plate.SOLUTION: A temperature-control plate includes a plate body including a first plate element (1), a second plate element, and at least one connection pipe (2) for temperature-control fluid. Components are joined to each other with a brazing technology. A connection pipe (2) includes an outer flange (4) and an insertion part. The outer flange (4) abuts on an outside of the first plate element (1). The insertion part is positioned inside a fitting opening of the first plate element (1). The fitting opening is disposed in a molding part within the first plate element (1). An annular peripheral edge part (10) of the fitting opening is displaced relative to a plate plane of the first plate element (1). An insertion part terminal portion is plastically formed in an inner flange (30) and includes an annular groove (31) that is formed therein.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a temperature control plate for temperature control of electronic components and / or batteries, and a method for manufacturing the temperature control plate.

[0002] In particular, the present invention relates to a cooling plate for cooling a battery, especially for cooling a vehicle battery.

Background Art

[0003] In electric vehicles or hybrid vehicles, a high-voltage battery system is used. Battery thermal management is necessary to ensure the driving range, driving performance, charging performance, and service life of electric-driven vehicles. In order to keep the battery within an optimal temperature range, an excessive amount of waste heat generated during battery operation is discharged from the battery, and a temperature control device that guarantees that the battery is maintained at a uniform temperature level is used.

[0004] To control the temperature of a battery or battery module, a temperature control plate that directly or indirectly contacts the battery is used. A temperature control fluid flows through the temperature control plate. Such a temperature control plate usually consists of two plate elements assembled on a plate body and defining one or more cooling channels therebetween. The temperature control fluid is guided through the one or more cooling channels. Usually, the temperature control plate is made of a light metal sheet, especially an aluminum sheet.

[0005] To supply and discharge the temperature control fluid to and from the temperature control plate, the plate is provided with connecting pipes. Usually, the connecting pipes are manufactured by forming or machining. Fixing the connecting pipes to the temperature control plate is performed by welding, brazing, or adhesion. Bonding with screws is also known.

[0006] Fixing the connecting pipes after manufacturing the plate body of the temperature control plate requires an additional joining step and is correspondingly complicated.

[0007] In the prior art, a temperature control plate in the form of a cooling plate is known.

[0008] A cooling plate, consisting of a structural plate and a cover plate joined by brazing technology, is described in German Patent Application Publication No. 102014217728.

[0009] Cooling plates and methods for manufacturing cooling plates are included in the prior art by German Patent Application Publication No. 102018123972. The cooling plate comprises a connecting pipe for a cooling fluid, the connecting pipe comprising a mounting flange and a socket portion. The mounting flange abuts against the plate body of the cooling plate. The socket portion is positioned within a mounting opening in the plate body, plastically deformed, and joined to the plate body.

[0010] The non-airtightness that can occur during the material bonding of the temperature control plate or cooling plate to the connecting pipe, particularly due to thermal distortion and related post-processing work, is a problem. [Prior art documents] [Patent Documents]

[0011] [Patent Document 1] German Patent Application Publication No. 102014217728 [Patent Document 2] German Patent Application Publication No. 102018123972 Specification [Overview of the Initiative] [Problems that the invention aims to solve]

[0012] Based on prior art, the fundamental problem of the present invention is to provide a functionally and manufacturably improved temperature-controlled plate having connecting tubes that are joined rationally and process-wise, and to present an advantageous method for manufacturing such a temperature-controlled plate. [Means for solving the problem]

[0013] The solution to the physical aspect of the problem lies in the temperature control plate according to the features of claim 1.

[0014] The method of the problem is solved by the method according to claim 7.

[0015] Preferred embodiments and variations of the present invention are subject to the dependent claims.

[0016] The temperature-controlled plate comprises a plate body composed of two plate elements. Temperature-controlled fluid is supplied and discharged via connecting pipes. The connecting pipes are materially joined to the plate body or its plate elements. The plate elements are, in particular, channel plates and base plates that are integrated into and joined to each other in a plate stack to form the plate body. The plate elements are made of light metal or light metal alloy, particularly aluminum alloy. At least one of the plate elements of the temperature-controlled plate's plate body has a channel structure for allowing the temperature-controlled fluid to pass through. The plate elements are materially joined by press brazing. The brazing process is performed in a forming brazing die. Thus, the plate stack composed of both plate elements is clamped and pressed against each other in the forming brazing die and heated to a temperature above the melting point of the brazing material applied between the plate elements, thereby causing the brazing material to melt and transition to the liquid phase, and after the solidification of the brazing material, material bonding of the plate elements occurs at the adjacent joining surfaces.

[0017] To form one or more channels in at least one of the plate elements, the plate elements are clamped within a forming brazing die, and the intermediate space between the plate elements is subjected to internal pressure. For this purpose, a working medium is introduced into the intermediate space, and a channel structure having at least one or more channels is formed by internal high-pressure technology.

[0018] The connecting pipe for the temperature-controlled plate according to the present invention comprises an outer flange and a insertion portion. The outer flange abuts against the outside of one plate element of the plate body of the temperature-controlled plate. The insertion portion is positioned within a mounting opening of the plate element and is plastically formed. According to the present invention, the mounting opening is located within a molded portion in the first plate element. The molded portion displaces the annular periphery of the mounting opening relative to the plate plane of the first plate element. The connecting pipe is inserted through the mounting opening in the plate element by its insertion portion. The end portion of the insertion portion is formed into an inner flange by plastic forming. The inner flange extends annularly radially outward. An annular groove is formed between the outer flange and the inner flange. The periphery of the mounting opening extends within the annular groove. The annular periphery of the mounting opening is fitted and fluidly tightly joined between the outer flange and the inner flange. The flange attachment of the end portion constitutes the inner flange, forming a crimped joint between the connecting pipe and the first plate element.

[0019] The diameters of the mounting opening and the insertion portion are configured to fit together. The mounting opening may be circular, elliptical, or elongated. The mounting opening is formed in the first plate by punching technology. The mounting opening can be formed in the first plate element before, during, or after the formation of the molded portion.

[0020] The connecting pipes are immovably coupled to the plate elements by crimping. The plate elements are reusable and constitute the first plate elements of a plate laminate for manufacturing the plate bodies of temperature-controlled plates.

[0021] The plate elements, as well as at least one plate element and one or more connecting pipes, are joined to each other by a material, particularly by brazing, preferably by press brazing.

[0022] The forming part is formed as a local recess within one of the plate elements. The forming part is configured in the shape of a bowl or a dish. The recess can have a circular, elliptical, or slot-shaped perimeter. The depth of the forming part is small relative to the minimum diameter of the forming part. The forming part has a perimeter and depth set such that an inner flange is accommodated within the forming part.

[0023] Advantageously in practice, the wall thickness of the inner flange is set to be 0.5 mm or more and 1.0 mm or less.

[0024] Particularly advantageously, the forming part has a depth set to be at least as great as the wall thickness of the inner flange. In particular, the forming part is geometrically set such that the inner flange is accommodated within the receiving part and is substantially flush with the adjacent inner surface of the first plate element. Advantageously, the inner flange does not protrude with respect to the inner surface of the first plate element. Substantially flush means that the inner side of the inner flange and the inner surface of the first plate element are at the same height, taking into account the technical tolerances of the part.

[0025] A further advantageous embodiment contemplates that a brazing material, in particular a ring made of brazing material, i.e., a brazing ring and / or a seal, is incorporated between the outer flange and the first plate element. The brazing material or the brazing ring can also form a seal. The brazing material melts during the press brazing joining of the plate element and the connecting pipe. After the brazing has solidified, a material bond is formed between the outer flange and the annular peripheral part of the mounting opening sandwiched between the outer flange and the inner flange.

[0026] More advantageously, the brazing material, in particular the brazing ring and / or the seal, is arranged within a receiving part in the outer flange. Thereby, a second fitting and fluid-tight joint is produced.

[0027] A method for manufacturing a temperature-regulating plate is · providing a connecting pipe having an outer flange and an insertion part; · providing a first plate element; The steps include forming a molded portion within the first plate element and forming a mounting opening within the first plate element, - During the formation of the molded portion, the annular peripheral edge of the bottom and / or mounting opening of the molded portion is displaced relative to the plate plane of the first plate body, The steps include: introducing the insert portion into the mounting opening until the outer flange contacts the first plate element; The step of forming the end portion of the insertion part into an inner flange, A step in which an annular groove is formed between the outer flange and the inner flange, and the peripheral edge of the mounting opening is fixed between the outer flange and the inner flange within the annular groove, The step of providing a second plate element and constructing a plate laminate consisting of the first plate element and the second plate element, wherein a brazing material is applied between the plate elements, or the step of applying a brazing material. The steps include inserting a plate stack into a heated molding brazing die that includes a lower die and an upper die, The steps include closing the molding brazing die and clamping the plate stack between the lower and upper molds, • A step of heating the plate stack, The steps include: applying internal pressure to the intermediate space between plate elements of a plate stack by introducing a working medium, thereby forming a channel in at least one of the plate elements; The steps include: melting the brazing material between the plate elements, joining the plate elements at the contacting joint surfaces by brazing, and joining the connecting pipe to the first plate element by brazing; The steps include opening the molding brazing die and removing the temperature control plate from the molding brazing die, It is equipped with.

[0028] The formation of localized molded portions and mounting openings within the first plate element can be performed simultaneously or with a time staggerment relative to each other. First, a molded portion in the form of a local recess or pre-embossed area can be formed within the region of the first plate element, and then a mounting opening can be punched out within the molded portion or at the bottom of the molded portion. However, it is also possible to form the molded portion and the mounting opening simultaneously. Alternatively, the mounting opening can be formed in the plate element first, and then the region around the mounting opening can be molded, thereby forming the molded portion by molding technology.

[0029] The molding portion displaces the bottom of the molding portion and / or the annular periphery of the mounting opening relative to the plate plane of the first plate body. In this case, the periphery of the mounting opening extends particularly in an S-shape. The connecting pipe is introduced into the mounting opening by its insertion portion until the outer flange abuts against the first plate element.

[0030] Next, the end portion of the socket is plastically formed to create the inner flange.

[0031] The inner flange of the insertion portion is formed in an annular shape radially outward. Here, the inner flange is aligned at a substantially 90° angle with respect to the longitudinal axis of the connecting pipe. The periphery of the mounting opening is fitted and fluid-tightly housed within the annular groove formed between the outer flange and the inner flange.

[0032] The shaping of the end portion of the insertion part is preferably carried out in two stages. In the first shaping stage, the end portion is shaped or bent outwards. Here, the end portion is preferably bent at an angle of about 45° with respect to the longitudinal axis of the connecting pipe. In the second shaping stage, the end portion is displaced radially, particularly at an angle of about 90° with respect to the longitudinal axis of the connecting pipe.

[0033] Between the outer flange, the inner flange, and the peripheral edge of the mounting opening extending within the annular groove between them, a crimped joint is formed due to the plastic deformation of the joining partner, particularly the inner flange.

[0034] The plate elements are joined to each other materially within the molding brazing die. Within the molding brazing die, the connecting tubes to the first plate elements are also joined using brazing techniques.

[0035] The molding brazing mold is heated to a mold temperature at which both the internal high-pressure molding process for forming the channel and the joining process by brazing technology are carried out. In particular, the mold temperature is 540°C to 670°C, and especially advantageously, the mold temperature is 550°C to 640°C.

[0036] To manufacture a temperature-controlled plate, a plate laminate consisting of a first plate element and a second plate element is constructed. The plate elements are made of a metallic material, particularly a light metal alloy. A brazing material is applied between the plate elements, or the brazing material is applied when constructing the plate laminate. At least the first plate element is provided with a connecting tube joined to the first plate element according to the present invention. The plate laminate is inserted into a heated forming brazing die. The forming brazing die comprises a lower die and an upper die. The forming die is closed, but the lower die and upper die are moved relative to each other.

[0037] An advantageous embodiment of the method according to the present invention intends that the closing process of the forming brazing die is interrupted before reaching the closed position. The upper and lower dies are held spaced apart from each other in this holding position when the plate stack is inserted. The holding position is maintained for a holding time. During this time, the plate stack placed on the lower die is heated. After the holding time, the closing movement is continued, the forming brazing die is closed, and the plate stack is clamped between the lower and upper dies. The plate stack is further heated within the forming brazing die to the brazing temperature while clamped. The intermediate space between the clamped plate elements within the forming brazing die is subjected to internal pressure in order to form one or more channels in at least one of the plate elements. For this purpose, a working medium is introduced into the intermediate space, and a channel structure having at least one or more channels is formed by internal high-pressure technology. The introduction of the working medium into the intermediate space between the plate elements can be done via a pre-fitted and fluid-tightly joined connecting tube.

[0038] After opening the molding brazing die, and after a cooling stage as necessary, the temperature control plate can be removed from the molding brazing die.

[0039] The present invention will be described in detail below with reference to the drawings. [Brief explanation of the drawing]

[0040] [Figure 1] Perspective view of a portion of the temperature control plate and connecting pipe. [Figure 2] Partial plan view of a plate element with a mounting opening [Figure 3] Cross-sectional view along line AA in Figure 2 after the molded part has been formed. [Figure 4] Cross-sectional view of the connecting pipe [Figure 5] Cross-sectional view of the first plate element of a temperature control plate to which a connecting pipe is attached. [Figure 6] A molding die for the first molding step to secure the connecting pipe within the mounting opening of the first plate element. [Figure 7]A molding die for a second molding step to secure a connecting pipe within the mounting opening of the first plate element. [Modes for carrying out the invention]

[0041] Figure 1 shows a portion of the first plate element 1 of the temperature control plate and a connecting pipe 2 fixed to the plate element 1.

[0042] Temperature-controlled plates are used for battery cooling, particularly for vehicle batteries in automobiles. Typically, a temperature-controlled plate comprises a plate body composed of two plate elements. Of these plate elements, the first plate element 1 is shown here. Typically, a temperature-controlled plate includes two connecting pipes 2 for supplying and discharging the temperature-controlled fluid. The first plate element 1 shown here is a completely or nearly completely flat base plate. The plate body of the temperature-controlled plate is completed by a second plate element, which is a channel plate having a channel structure with at least one temperature-controlled channel.

[0043] The first plate element 1 and the second plate element are positioned flat vertically to form a plate body. The adjacent surfaces of the plate elements are provided with brazing material, either entirely or regionally. In particular, the brazing material is pre-applied to one of the plate elements in the form of a plated brazing layer. The adjacent surfaces of the plate elements are joined to each other, either entirely or regionally. The connecting pipe 2 is joined to the first plate element 1 by fitting and material.

[0044] The connecting pipe 2 includes an outer connecting portion 3. This connecting portion is configured for connecting the temperature-controlled fluid line. Furthermore, the connecting pipe includes an outer flange 4 that extends radially outward from the connecting portion 3 (see Figure 4). The connecting pipe 2 has a insertion portion 5 at the extension of the connecting portion 3. A passage opening 6 extends longitudinally through the connecting pipe 2.

[0045] A mounting opening 7 is formed in the first plate element 1 (see Figures 2 and 3). In the illustrated embodiment, the mounting opening 7 is circular. The mounting opening 7 has a diameter that matches the outer diameter of the insertion portion 5.

[0046] The mounting opening 7 is located within the molded portion 8 of the first plate element 1. The molded portion 8 is formed by a local recess 9 within the first plate element 1. The mounting opening 7 includes an annular peripheral portion 10. The peripheral portion 10 is configured to curve in an S-shape. The peripheral portion 10 of the mounting opening 7 is displaced in one direction relative to the plate plane PE of the first plate element 1. This is achieved by molding techniques such as shear molding or compression molding.

[0047] The outer flange 4 has a housing portion 12 in the form of an annular groove on the flange side 11 facing the plate element 1. A brazing material in the form of a brazing ring 13 is housed within the housing portion.

[0048] The connecting pipe 2 is fixed to the first plate element 1. This is done by fitting together through plastic deformation of the end portion 14 of the insertion portion 5. The end portion 14 is flanged, forming a crimped joint.

[0049] Figure 5 shows a connecting pipe 2 that is fitted into the first plate element 1.

[0050] For the attachment of the connecting pipe 2 to the first plate element 1, the connecting pipe 2 is introduced into the mounting opening 7 by its insertion portion 5 until the outer flange 4 abuts against the outside of the first plate element 1. The insertion portion 5 then protrudes longitudinally from the inner surface 15 of the first plate element 1. The flange side 11 and the brazing ring 13 positioned within the housing portion 12 abut annularly against the outer surface 16 of the first plate element 1 adjacent to the molded portion 8.

[0051] The fitting-type crimp joint of the connecting pipe 2 to the first plate element 1 is performed in two stages. The joining process is explained with reference to Figures 6 and 7.

[0052] The first molding step is shown in Figure 6.

[0053] The second molding stage is shown in Figure 7.

[0054] The flange attachment process and the formation of the crimped joint between the connecting pipe and the first plate element 1 are carried out in two molding dies 17, 18, which are similarly configured and substantially differ only in the molding contour of their male molds 19 or 20.

[0055] Figure 6 shows the first molding die 17.

[0056] Figure 7 shows the second molding die 18.

[0057] The molding dies 17,18 substantially comprise an upper male mold 19 or 20, a counter holder 21 having a pipe housing 22, a down holder 23, and an upper damper element 24 positioned within the down holder 23.

[0058] To form a crimped joint between the connecting pipe 2 and the first plate element 1, the plate element 1 is positioned within the first molding die 17 by the insertion portion 5 of the connecting pipe 2, which is inserted into the mounting opening 7. The connecting pipe 2 protrudes into the pipe housing 22 at its connecting portion 3. The insertion portion 5 protrudes axially in the direction of the male mold 19 in the longitudinal direction of the connecting pipe 2. The first plate element 1 is clamped between the counter holder 21 and the down holder 23, and the male mold 19 is displaced axially. The male mold 19 descends in the direction of the end portion 14. This is done by applying an external axial force. The male mold 19 has a molding contour 25 that abuts against the inside of the end portion 14 of the insertion portion 5 when the male mold 19 is displaced axially. The molding contour includes a bevel 26 extending at an angle of approximately 45°. This bevel abuts against the end portion 14. The inclined plane 26 acts as a wedge, transmitting radial force to the end portion 14, which in turn bends this end portion outward with respect to the vertical axis L of the connecting pipe 2. This is illustrated in Figure 6. The end portion 14 is bent outward at an angle of approximately 45° with respect to the vertical axis L of the connecting pipe 2.

[0059] The parts, namely the first plate element 1 and the connecting pipe 2 pre-fixed to the first plate element 1, are then transferred to the second molding die 18. The male mold 20 of the second molding die 18 is configured and set to bend or flange the end portion 14 of the insertion portion 5, which was bent outward in the first molding step, at a right angle. Thus, the molding contour 27 includes a molding surface 28 aligned at a right angle with respect to the longitudinal axis L of the connecting pipe 2. As the male mold 20 descends, the end portion 14 is molded at a right angle, specifically at an angle of approximately 90° with respect to the longitudinal axis L of the connecting pipe 2, and the parts are pressed together. This is illustrated in Figure 7.

[0060] Both the molding die 17 and the molding die 18 are equipped with a mandrel 29 that protrudes into the extension of the male die 19 or 20 and into the passage opening 6 of the connecting pipe 2. As a result, the connecting pipe 2 is supported internally, particularly around the inner circumference of the passage opening 6, within the area of ​​the outer flange 4 and the insertion portion 5. The mandrel 29 can function as a height limiting device or a path limiting device in cooperation with an internal stopper. Thus, the axial displacement path of the male dies 19 and 20 is limited by the stopper that abuts against the end face of the mandrel 29.

[0061] The end portion 14 of the insertion portion 5 is formed on the inner flange 30 which is directed radially outward from the connecting pipe 2 (see also Figure 5).

[0062] An annular groove 31 is formed between the outer flange 4 and the inner flange 30 of the connecting pipe 2. The annular peripheral edge 10 of the mounting opening 7 is housed within the annular groove 31 and is fitted and crimped between the outer flange 4 and the inner flange 30, and is fluidly tightly joined.

[0063] The inner flange 30 has a wall thickness s. The molded portion 8 has a depth t. The depth t of the molded portion 8 is set to be greater than or equal to the wall thickness s of the inner flange 30. The molded portion 8 is geometrically configured such that the inner flange 30 is housed within the molded portion 8 or recess 9, and is substantially flush with the adjacent inner surface 15 of the first plate element 1.

[0064] The wall thickness s is between 0.5 mm and 1.0 mm. The depth t of the molded section 8 is set accordingly. In particular, the depth t of the molded section 8 and the wall thickness s of the inner flange 30 are mutually identical and set to be substantially the same, so laminar flow characteristics exist in the transition region when the temperature-controlled fluid flows through it.

[0065] The first plate element 1, to which the connecting pipe 2 is joined, is then supplied to another manufacturing process for producing a temperature-controlled plate. The first plate element 1 is integrated with the second plate element to form a plate laminate. At least one of the two plate elements is equipped with a brazing material, in particular a plated brazing material layer. The plate laminate, consisting of both plate elements, is clamped in a forming brazing die. For this purpose, the forming brazing die is closed and the plate laminate is clamped between the lower and upper molds of the forming brazing die. Inside the forming brazing die, the plate laminate is heated to a temperature above the melting point of the brazing material. Clamped in the forming brazing dies 15, 16, the working medium is introduced into the intermediate space of the plate element, and a channel structure having at least one channel is formed by internal high-pressure technology. The working medium can be supplied via the connecting pipe 2. In the forming brazing die, a brazing ring 13 positioned within the housing 12 is also melted, thereby transitioning the brazing ring into a liquid phase. After the brazing material has solidified, material bonding occurs between adjacent joint surfaces, between the plate elements themselves, and between the first plate element 1 and the connecting pipe 2. While this application relates to the invention described in the claims, it may also encompass the following other embodiments. 1. A temperature-regulating plate for regulating the temperature of electronic components and / or batteries, having a plate body comprising a first plate element (1) and a second plate element and at least one connecting tube (2) joined together by brazing technology, wherein the connecting tube (2) comprises an outer flange (4) and an insertion portion (5), the outer flange (4) abutting against the outside of the first plate element (1), the insertion portion (5) being positioned within a mounting opening (7) of the first plate element (1), and the end portion (14) of the insertion portion (5) being molded, A temperature-controlled plate characterized in that a mounting opening (7) is located within a molded portion (8) in a first plate element (1), the annular peripheral portion (10) of the mounting opening (7) is displaced relative to the plate plane (PE) of the first plate element (1), the terminal portion (14) is formed in the inner flange (30), an annular groove (31) is formed between the outer flange (4) and the inner flange (30), and the peripheral portion (10) is housed within the annular groove (31). 2. The temperature control plate according to claim 1, characterized in that the inner flange (30) has a wall thickness (s), the molded portion (8) has a depth (t), and the depth (t) of the molded portion (8) is set to be greater than or equal to the wall thickness (s) of the inner flange (30). 3. The temperature control plate according to claim 1 or 2, characterized in that the molded portion (8) is geometrically set such that the inner flange (30) is housed within the molded portion and is substantially flush with the adjacent inner surface (15) of the first plate element (1). 4. A temperature-controlled plate according to any one of claims 1 to 3, characterized in that a brazing material, in particular a brazing ring (13) and / or seal, is incorporated between the outer flange (4) and the first plate element (1). 5. The temperature control plate according to item 4, characterized in that a brazing material, particularly a brazing ring (13) and / or a seal, is disposed within a housing (12) in the outer flange (4). 6. A temperature-regulating plate according to any one of claims 1 to 5 above, characterized in that the plate element (1) and / or connecting tube (2) are made of a light metal material, particularly an aluminum alloy. 7. A method for manufacturing a temperature control plate having a connecting pipe (2), The steps include providing a connecting pipe (2) having an outer flange (4) and an insertion portion (5), The steps include providing a first plate element (1), The steps include forming a molded portion (8) within the first plate element (1) and forming a mounting opening (7) within the first plate element (1), - During the formation of the molded portion (8), the annular peripheral portion (10) of the bottom and / or mounting opening (7) of the molded portion (8) is displaced relative to the plate plane (PE) of the first plate body (1), The steps include: introducing the insertion portion (5) into the mounting opening (7) until the outer flange (4) abuts against the first plate element (1), The step of forming the end portion (14) of the insertion portion (5) into the inner flange (30), - An annular groove (31) is formed between the outer flange (4) and the inner flange (30), and the peripheral edge (10) of the mounting opening (7) is fixed between the outer flange (4) and the inner flange (30) within the annular groove (31), The step of providing a second plate element and constructing a plate laminate consisting of a first plate element (1) and a second plate element, wherein a brazing material is applied between the plate elements, or the step of applying a brazing material. The steps include inserting a plate stack into a heated molding brazing die that includes a lower die and an upper die, The steps include closing the molding brazing die and clamping the plate stack between the lower and upper molds, • A step of heating the plate stack, The steps include: applying internal pressure to the intermediate space between plate elements of a plate stack by introducing a working medium, thereby forming a channel in at least one of the plate elements; The steps include: melting the brazing material between the plate elements, joining the plate elements at the contacting joint surfaces by brazing, and joining the connecting pipe (2) to the first plate element (1) by brazing; The steps include opening the molding brazing die and removing the temperature control plate from the molding brazing die, A method characterized by having the following: 8. The method according to the above-described specification, characterized in that the inner flange (30) of the insertion portion (5) is formed in an annular shape radially outward. 9. The method according to 7 or 8, characterized in that the molded portion (8) within the first plate element (1) is formed geometrically such that the inner flange (30) is located within the housing portion (12) and is substantially flush with the adjacent inner surface (15) of the first plate element (1). 10. The method according to any one of the above 7 to 9, characterized in that the shaping of the end portion (14) of the insertion portion (5) is performed in two stages, in the first shaping stage the end portion (14) is bent outward, particularly at an angle of about 45° with respect to the longitudinal axis (L) of the connecting pipe (2), and in the second shaping stage the end portion (14) is displaced radially, particularly at an angle of about 90° with respect to the longitudinal axis (L) of the connecting pipe (2). 11. The method according to any one of the above 7 to 10, characterized in that the peripheral edge (10) of the mounting opening (7) is fitted and fluid-tightly joined within the annular groove (31) between the outer flange (4) and the inner flange (30). 12. The method according to any one of 7 to 11 above, characterized in that a brazing material, in particular a brazing ring (13) and / or seal, is incorporated between the outer flange (4) and the first plate element (1). 13. The method according to any one of the above 7 to 12, characterized in that the molding brazing die is heated to a die temperature of 540°C to 670°C, particularly 550°C to 640°C. 14. The method according to any one of the above 7 to 13, characterized in that the closing process of the molding brazing die is interrupted for a holding time before reaching the closed position, the upper and lower dies are held spaced apart from each other when the plate stack is inserted, and after the holding time the molding brazing die is closed and the plate stack is clamped between the lower and upper dies. [Explanation of Symbols]

[0066] 1 Plate element 2 connecting pipes 3. Connection part 4. Outer flange 5. Insertion part 6 Passage opening 7. Mounting opening 8 Molding section 9 recesses Periphery of 10 7 11 Flange side 12 Storage Unit 13 Waxing 14 Termination section 15 1's inner self 16 1 outer surface 17 Molding molds 18. Molding molds 19 Male type 20 male type 21 Counter holder 22 Nozzle housing 23 Down holder 24 Damper elements 25 Molding contour 26 Slopes 27. Molding contour 28 Molding surface 29 Mandrel 30 Inner flange 31 Ring groove L Vertical axis PE plate flat s Thickness t depth

Claims

1. A temperature-regulating plate for regulating the temperature of electronic components and / or batteries, having a plate body comprising a first plate element (1) and a second plate element for temperature-regulating fluids and at least one connecting tube (2) joined to each other by brazing technology, wherein the connecting tube (2) comprises an outer flange (4) and an insertion portion (5), the outer flange (4) abutting against the outside of the first plate element (1), the insertion portion (5) being positioned within a mounting opening (7) of the first plate element (1), and the end portion (14) of the insertion portion (5) being molded, A temperature-controlled plate characterized in that a mounting opening (7) is positioned within a molded portion (8) in a first plate element (1), the annular peripheral portion (10) of the mounting opening (7) is displaced relative to the plate plane (PE) of the first plate element (1), the terminal portion (14) is formed on the inner flange (30), an annular groove (31) is formed between the outer flange (4) and the inner flange (30), the peripheral portion (10) is housed within the annular groove (31), and a brazing material or brazing ring (13) is incorporated between the outer flange (4) and the first plate element (1), and the brazing material or brazing ring (13) is positioned within a housing portion (12) of the outer flange (4).

2. The temperature control plate according to claim 1, characterized in that the inner flange (30) has a wall thickness (s), the molded portion (8) has a depth (t), and the depth (t) of the molded portion (8) is set to be greater than or equal to the wall thickness (s) of the inner flange (30).

3. The temperature control plate according to claim 1 or 2, characterized in that the molded portion (8) is geometrically set such that the inner flange (30) is housed within the molded portion and is substantially flush with the adjacent inner surface (15) of the first plate element (1).

4. The temperature control plate according to claim 1, characterized in that the plate element (1) and / or connecting pipe (2) are made of a light metal material.

5. A method for manufacturing a temperature control plate having a connecting pipe (2), - Providing a connecting pipe (2) having an outer flange (4) and an insertion portion (5), and - Providing a first plate element (1), - The step of forming a molded portion (8) within the first plate element (1) and forming a mounting opening (7) within the first plate element (1), - During the formation of the molded portion (8), the annular peripheral portion (10) of the bottom and / or mounting opening (7) of the molded portion (8) is displaced relative to the plate plane (PE) of the first plate body (1), - The step of introducing the insertion portion (5) into the mounting opening (7) until the outer flange (4) abuts against the first plate element (1), - A step of forming the end portion (14) of the insertion portion (5) into an inner flange (30), - An annular groove (31) is formed between the outer flange (4) and the inner flange (30), and the peripheral edge (10) of the mounting opening (7) is fixed between the outer flange (4) and the inner flange (30) within the annular groove (31), - A step of providing a second plate element and constructing a plate laminate consisting of a first plate element (1) and a second plate element, wherein a brazing material is applied between the plate elements, or the step of applying a brazing material. - The step of inserting a plate stack into a heated molding brazing die equipped with a lower die and an upper die, - The steps include closing the molding brazing die and clamping the plate stack between the lower and upper molds, - A step of heating the plate stack, - The step of introducing a working medium to apply internal pressure to the intermediate space between the plate elements of the plate stack, thereby forming a channel in at least one of the plate elements, - A step of melting the brazing material between the plate elements, joining the plate elements at the contacting joint surfaces by brazing technique, and joining the connecting pipe (2) to the first plate element (1) by brazing technique, A method characterized by comprising the steps of opening a molding brazing die and removing a temperature control plate from the molding brazing die.

6. The method according to claim 5, characterized in that the inner flange (30) of the insertion portion (5) is formed in an annular shape radially outward.

7. The method according to claim 5 or 6, characterized in that the molded portion (8) within the first plate element (1) is formed geometrically such that the inner flange (30) is located within the housing portion (12) and is substantially flush with the adjacent inner surface (15) of the first plate element (1).

8. The method according to claim 5, characterized in that the end portion (14) of the insertion portion (5) is formed in two stages, in the first forming stage the end portion (14) is bent outward at an angle of approximately 45° with respect to the vertical axis (L) of the connecting pipe (2), and in the second forming stage the end portion (14) is displaced radially at an angle of approximately 90° with respect to the vertical axis (L) of the connecting pipe (2).

9. The method according to claim 5, characterized in that the peripheral edge (10) of the mounting opening (7) is fitted and fluid-tightly joined within an annular groove (31) between the outer flange (4) and the inner flange (30).

10. The method according to claim 5, characterized in that a brazing material or brazing ring (13) is incorporated between the outer flange (4) and the first plate element (1).

11. The method according to claim 5, characterized in that the molding brazing die is heated to a die temperature of 540°C to 670°C.

12. The method according to claim 5, characterized in that the closing process of the molding brazing die is interrupted for a holding time before reaching the closed position, the upper and lower dies are held apart from each other when the plate stack is inserted, and after the holding time the molding brazing die is closed and the plate stack is clamped between the lower and upper dies.

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