CN110895110B

CN110895110B - Electronic module, temperature control device and method for controlling the temperature of an electronic module

Info

Publication number: CN110895110B
Application number: CN201910843270.1A
Authority: CN
Inventors: D·埃伦伯格
Original assignee: Witzenmann GmbH
Current assignee: Witzenmann GmbH
Priority date: 2018-09-13
Filing date: 2019-09-06
Publication date: 2021-04-02
Anticipated expiration: 2039-09-06
Also published as: FR3086047A1; CN110895110A; FR3086047B1; DE102018122414A1; DE102018122414B4

Abstract

An electronic module, a temperature control device and a method for controlling the temperature of the electronic module are provided, the temperature control device comprising: a housing having an interior space, the housing comprising a tubular wall section and being configured for substantially completely accommodating the electronic module except for electrical connection contacts and/or a driven shaft of the electronic module; at least one structured zone located in the tubular wall section; an inlet line to the interior space for a temperature control fluid; an outlet line for the temperature control fluid, the housing having a plurality of discrete shaping regions in at least one structured region, the discrete shaping regions extending at least partially and/or at least partially transversely to the longitudinal axis of the wall section, the inlet line leading into a first distribution and collection section in the interior space, the outlet line leading out of or branching out of a second distribution and collection section in the interior space of the housing, parts of the discrete shaping regions transitioning into the first or second distribution and collection section of the housing with a continuous change in course of their first and second end sections.

Description

Electronic module, temperature control device and method for controlling the temperature of an electronic module

Technical Field

The disclosure relates to a temperature control device for controlling the temperature of an electronic module, in particular a battery module or an electric motor.

Furthermore, the disclosure relates to an electronic module, in particular a battery module or an electric motor, having a temperature control device according to the disclosure.

The disclosure further relates to a method for tempering an electronic module, in particular a battery module or an electric motor, using a tempering device according to the disclosure.

Background

EP 3056847 a1 discloses tempering a body by means of a device for flowing a tempering medium around the body. The known device is characterized in that the temperature control device comprises at least one strip-shaped metal hose wound from a metal strip, which is arranged on a side face of the body and at least partially surrounds the side face. The strip-shaped metal hose forms a helical effective flow space for the temperature control medium within its profile. Since the structure of the band-shaped metal hose is not completely fluid-tight, an additional outer tube is provided for sealing.

In the case of the aforementioned prior art, it has proven to be disadvantageous that, in the case of cooling applications, the heat to be removed must be removed partially through the wall of the metal strip hose, which is even partially double-layered. The required multi-part solution with the outer tube results in relatively high material and cost outlay. Furthermore, the flow guidance through a single long flow channel also causes relatively high pressure losses.

In order to avoid the aforementioned problems, temperature control devices are often required for bodies to be temperature-controlled (i.e. to be heated or cooled), by means of which a uniform and efficient temperature control can be carried out with as low or definable a pressure loss as possible and as little mass flow differential as possible, while material and cost expenditure can be reduced.

Disclosure of Invention

According to the disclosure, this object is achieved by a temperature control device having the features of claim 1, by an electronic module having the features of claim 15 and by a method having the features of claim 16.

Advantageous refinements of the idea according to the present disclosure are the subject of dependent approaches.

The temperature control device according to the disclosure for controlling the temperature of an electronic module, in particular a battery module or an electric motor, comprises: a housing having an interior space, the housing comprising a tubular wall section, the housing being configured for substantially completely accommodating an electronic module except for electrical connection contacts and/or a driven shaft of the electronic module; at least one structured zone located in the tubular wall section; at least one inlet line to the interior space for a temperature-control fluid; and at least one outlet line for the temperature control fluid, wherein the housing has a plurality of discrete shaped regions in the at least one structured region, the discrete shaped regions extending at least partially and/or at least partially transversely to the longitudinal axis of the tubular wall section, the inlet line leading into a first distribution and collection section in the interior space, the outlet line leading out of or leading out of a second distribution and collection section in the interior space of the housing, wherein part of the discrete shaped regions, with their respective first and second end sections changing continuously in their respective course, transitions into the first distribution and collection section or into the second distribution and collection section of the housing.

The term "electronic module" here generally denotes a body to be temperature-regulated, which is supplied with or provides electrical energy and which accordingly has electrical connection contacts (clips). Furthermore, a driven shaft may also be present in the case of an electric motor.

The distribution and collection section can preferably be designed as a straight tube region, so that the housing is completely free of special structures in this straight tube region. This is advantageous for flow guidance reasons; the present disclosure is not limited to such a design.

The temperature conditioning device according to the present disclosure is intended to substantially completely accommodate such an electronic module. In this context, "substantially completely" means that at least the electrical connection contacts of the electronic module and/or the output shaft can project from the housing in order to apply, in particular, an electrical connection line or a drive force which can be generated by means of an electric motor. The housing comprises a tubular wall section, which means that the wall section is closed over the circumference. In the tubular wall section there is at least one structured area in which the outer jacket has a plurality of discrete, i.e. individual, shaped areas. The shaping region extends at least partially and/or at least partially transversely to the longitudinal axis of the tubular wall section. At least some of the discrete shaped areas transition into the first distribution and collection section or the second distribution and collection section of the outer cover with their respective first and second end sections in respective continuously changing orientations. In this context, "continuously variable" means that the course changes gradually from a direction transverse to the longitudinal axis of the tubular wall section to the extent of the distribution and collection section. Uncontrolled vortex formation should therefore be avoided, which limits pressure losses and improves the temperature control effect. Furthermore, the temperature control device according to the disclosure comprises a supply line for the temperature control fluid, which leads to the first distribution and collection section. Finally, there is an outlet line for the temperature control fluid, which branches off or branches off from the second distribution and collection section. The tempering fluid thus passes via the feed line into the first distribution and collection section and is guided from there to the structured or discrete shaping region. After flowing through these regions, the tempering fluid reaches the second distribution and collection section and from there enters the outlet line. In this way, a mass flow distribution for the tempering fluid is achieved, the tempering fluid surrounding and/or passing between the discrete shaping regions. The result is a controlled pressure loss and an improved tempering effect.

Since the temperature-regulating device according to the present disclosure is similar to known (metal) bellows, the implementation according to the present disclosure may also be referred to as "cooling bellows" or generally as "temperature-regulating bellows". Since the machinery and processes required for its manufacture are known, simple and therefore cost-effective manufacturability is also achieved. No additional external seal is required.

The method according to the disclosure for tempering an electronic module, in particular a battery module or an electric motor, by means of a tempering device according to the disclosure comprises: tempering fluids, preferably water, optionally water with additives, oils or dielectrics, e.g. 3M^TMNovec^TMThe High-Tech fluid is guided via an inlet line through the interior in the structured region of the tubular wall section of the housing to an outlet line. In this process, the flow of the tempering fluid is guided in a targeted manner in the region of the discrete shaping regions, as already described.

In a development of the temperature control device according to the disclosure, the main flow direction of the temperature control fluid in the first distribution and collection section in the region of the supply line and/or in the second distribution and collection section in the region of the discharge line is arranged substantially parallel to the longitudinal axis of the tubular wall section. In this way, the tempering fluid can be introduced axially in parallel into the first distribution and collection section or can be discharged from the second distribution and collection section with a corresponding reduction in installation space.

Accordingly, in a further development of the temperature control device according to the disclosure, provision can be made that the supply line and/or the discharge line are each oriented substantially transversely to the longitudinal axis of the tubular wall section.

A further development of the temperature control device according to the disclosure can provide that the tubular wall section has two structured areas, preferably diametrically opposite one another, and two distribution and collection sections, preferably diametrically opposite one another. As uniform a cooling effect as possible with respect to the circumference of the electronic module is thereby achieved. However, the disclosure is not limited to this design: for example, it may be advantageous if the distribution and collection sections are not radially opposite one another, but are arranged jointly on one side of the electronic module. The discrete shaping regions on one side of the electronic module then extend over a significantly longer section than the discrete shaping regions on the other side of the electronic module. Thus, the temperature control effect can be influenced in a targeted manner. For example, the power electronics of the electric motor can be arranged in the region of the shorter segment in order to specifically optimize the temperature control effect here.

In a further development of the temperature control device according to the disclosure, it is provided that the discrete shaping regions (also referred to as "shaping") are configured as raised regions or recessed regions of the housing. In this case, the shaping (alternatively also referred to as "fin pins") need not always be carried out up to the side (outer surface) of the electronic module; this side can also only be present as a narrowing of the effective free space between the outer tubular wall section and the built-in electronic module, i.e. as a (local) reduction in the channel height. The throttling function for the tempering fluid flowing around the electronics module is thus reflected. Furthermore, a reinforcement is thereby achieved to reinforce the (plate) material of the housing. The reduction in channel height also causes an increase in the flow velocity of the tempering fluid, which in turn affects the formation of the boundary layer and affects the heat transfer performance. Instead of or in addition to the inward profiling, for example in the form of a recess or depression, an outward (channel height increasing) profiling can also be provided.

According to a further development of the disclosure, provision is made for the width of at least some of the discrete shaping regions to be configured relatively longer and preferably to have a substantially constant cross section. This essentially involves longitudinally extending waves or corrugations, as is known from corrugated hoses or tubes.

According to a further development of the disclosure, it is provided that some of the discrete shaping regions are configured to be linear or curved and that this is preferably formed at least in the region of the first and second end sections thereof. The shape of the region can be used to influence the flow in a targeted manner.

According to a further development of the disclosure, provision is made for at least some of the discrete shaping regions to be configured in the form of drops or as streamline regions or as so-called NACA shaping, for example NACA-0015. The NACA styling is a two-dimensional cross-section of an airfoil styling for aircraft airfoils, which is the airfoil design (english "airfoil design") formulated by the National Aviation Council (NACA), see de. The circulation flow parameters are therefore known in a simple manner and can be selected in a targeted manner in order to bring about the desired flow behavior.

The NACA style is a variation of the original style. NACA has created a variety of build tables (NACA catalogs) for different NACA builds for standardized descriptions of the builds. These tables contain geometric data and form values (lift coefficient cA, resistivity cW and moment coefficient cM) for different adjustment angles. These teachings can be used in the present disclosure. The NACA formation is preferably flooded with the tempering fluid such that its thicker end is disposed upstream.

By introducing a flow-guiding profile (e.g. NACA-0015), a significantly improved heat transfer performance can be achieved with a large increase in pressure losses compared to parallel flow-through channels.

In a further development of the temperature control device according to the disclosure, at least some of the relatively long regions and at least some of the drop-shaped, streamlined or NACA-shaped regions are arranged in succession substantially in the flow direction of the temperature control fluid. This makes it possible to influence the flow of the temperature control fluid and the temperature control effect in a targeted manner. The shaping can also be arranged offset ("with notches").

A further development of the temperature control device according to the disclosure provides that at least some of the relatively long regions and at least some of the drop-shaped, streamlined or NACA-shaped regions are arranged substantially parallel to one another in the flow direction of the temperature control fluid. This also makes it possible to influence the flow behavior and the temperature control effect in a targeted manner.

A further development of the temperature control device according to the disclosure provides that the relatively long region defines a meandering flow channel in which the drop-shaped, streamlined or NACA-shaped regions are arranged substantially one behind the other. The relatively long region thus effectively lengthens the flow channel, while the drop-shaped, streamlined or NACA-shaped region specifically forms the flow within its flow channel.

In a further development of the temperature control device according to the disclosure, it is provided that the tubular wall section has a round, in particular round or oval, cross section and is preferably constructed in one piece or consists of at least two half-shells. For this purpose, the two half-shells can be formed by a material-locking connection in the distribution and collection section. The mentioned circular, in particular circular or oval, cross-section of the temperature control device is particularly suitable for accommodating the rotationally symmetrical, common geometries of battery cells or battery modules currently used in the field of electronic mobility. If the tubular wall sections are formed by half shells, these can be produced particularly cost-effectively as deep-drawn parts of the tip.

A particular development of the temperature control device according to the disclosure provides that the supply line and the discharge line are arranged at a common end of the tubular wall section. This may result in a particularly simple connection of the temperature control device.

In a further development of the temperature control device according to the disclosure, however, it is provided that the supply line and the discharge line are arranged at different ends of the tubular wall section. This makes it possible to achieve a uniform temperature control effect.

In a further development of the temperature control device according to the disclosure, however, it can be provided that the supply line and/or the discharge line are arranged in the middle region of the tubular wall section with respect to the longitudinal extent of the wall section. This also enables the temperature control effect to be influenced in a targeted manner.

In order to further improve the temperature control effect, in a further development of the temperature control device according to the disclosure it can be provided that the housing has an end wall section which closes off the tubular wall section at least on one end side (preferably with the exception of the passage of the electrical connection contacts or the output shaft). The end wall section may comprise at least one further structured area in which the housing has a plurality of discrete sculpted areas of the type described. The end-side structured regions can be merged into the corresponding first distribution and collection section or into the second distribution and collection section. In this way, the temperature control device according to the disclosure is supplemented by an end-side temperature control device, wherein the end-side temperature control device is substantially configured like the temperature control device in the tubular wall section, in order to further improve the temperature control effect.

According to a further aspect, the disclosure also relates to an electronic module, in particular a battery module or an electric motor, having a temperature control device according to the disclosure. As described above, the electronic module is accommodated in the tubular wall section and at the same time may abut the respective tubular wall section at least in the structured area, but the disclosure is not limited thereto. In order to prevent, in particular, the mass flow rate of the temperature control medium and also to reinforce the accommodated electronic module, it can additionally be provided that the electronic module and the temperature control device are fixedly connected to one another in at least one region, in particular by a material bond in the structured region in the depression or in the depression region. This can be counteracted by chemical and thermal influences, in particular in the case of deformation of the battery cell.

A preferred method for manufacturing a temperature regulating device according to the present disclosure is hydroforming. Possible method steps here are:

1. manufacturing a relatively thick-walled electronic module housing;

2. turning over (possibly with the aid of heat) a thin-walled sleeve made of metal (steel) with a hydraulic interface;

seal welding (at the ends) the two annular gaps left between the module housing and the sleeve and forming flow leads and/or heat transfer fins (discrete contoured regions according to the present disclosure) on the sleeve, for example by a seam or laser weld;

4. forming cooling channels (flow spaces or flow channels) by free hydroforming of the thin-walled housing via hydraulic interfaces (possibly supported by an inner housing for carrying);

5. the hydraulic interface preferably also forms a port (inlet/outlet line) for coupling in and out a temperature-controlled fluid flow during operation.

The already mounted stator of the electric motor (i.e. the possible electronic module) can be used to support the inner housing. Likewise, the temperature control device can be produced in the manner described by means of different channel shapes (flow spaces). A cost-effective single-piece or low-volume production and modification is thus achieved.

In addition, in the case of a (for example cohesive) connection between the (cooling) sleeve and the body to be tempered (electronic module), the overall structure can be reinforced, which increases the natural frequency.

Drawings

Further features and advantages of the disclosure result from the following description of embodiments in accordance with the accompanying drawings.

Fig. 1 schematically shows a temperature conditioning device according to the present disclosure and an electronic module accommodated therein;

fig. 2 shows a different embodiment of the shaped discrete regions in the object of the disclosure in a longitudinal section;

fig. 3 shows an embodiment of a tubular wall section in a tempering device according to the present disclosure in an unrolled state;

fig. 4 shows another embodiment of a tubular wall section in a tempering device according to the present disclosure in an unrolled state;

fig. 5 shows another embodiment of a tubular wall section in a tempering device according to the present disclosure in an unrolled state;

fig. 6 shows another embodiment of a tubular wall section in a thermostat according to the disclosure in an unrolled state;

fig. 7 shows another embodiment of a tubular wall section in a thermostat according to the disclosure in an unrolled state;

fig. 8 schematically shows a solution for manufacturing a temperature conditioning device according to the present disclosure.

Detailed Description

Fig. 1 schematically shows a temperature conditioning device according to the present disclosure, which may be referred to as "cooling bellows" or generally as "temperature conditioning bellows" according to embodiments in the introductory part of the description. The entire temperature control device is designated by reference numeral 10. The temperature control device has a structured region 10a which comprises a plurality of discrete shaping regions, which are not shown in fig. 2 for the sake of clarity (see fig. 2). The temperature control device 10 surrounds a body 20 to be temperature controlled (here a so-called electronic module with

connection contacts

20a, 20b, which are partially led out of the temperature control device 10) in the region of its surface (side) 20'. In this case, in one embodiment, the temperature control device 10 rests on the surface 20' in the region of the shaping and can be fastened in a material-locking manner in particular. Thereby, the mentioned mass flow difference rate can be suppressed; furthermore, the cohesive connection of the temperature control device 10 to the body 20 to be temperature-controlled leads to a reinforcement of the latter, which is advantageous and desirable in particular when the body 20 is embodied in the form of a battery module or a battery cell (in particular in the form of a prismatic, deep-drawn or extruded battery cup). Rather, the body 20 may also serve to reinforce the temperature regulating device 10.

In the context of the present disclosure, the tempering medium or the tempering fluid TF is guided via the inlet line 13 and the outlet line 14 through an inner cavity or flow space 4 defined between the main body surface 20' and the inner side of the tempering device 10. However, unlike the prior art, the flow space 4 is not a single continuous spiral-shaped flow space, but a plurality of, in particular, parallel flow spaces, which will be described in detail below. This makes it possible to improve the temperature control effect in a targeted manner and to reduce the pressure losses. Furthermore, the cover 11 is connected (preferably in a material-locking manner) to the surface 20' in the end-side edge region thereof and additionally also between the supply line 13 and the discharge line 14 in such a way that the tempering fluid TF can only flow through the flow space 4 according to a predetermined pattern (indicated in fig. 1 by a dashed arrow) and does not flow directly from the supply line 13 to the discharge line 14 without effectively flowing effectively around the electronic module 20.

Reference L indicates the longitudinal axis formed by the thermostat 10 and the electronic module 20.

Fig. 2 shows a temperature control device (temperature control bellows) 10 according to the disclosure and an electronic module 20 accommodated therein in the form of a longitudinal section. Here, electricityThe electrical connection contacts of the sub-module 20 are not shown. Reference numeral 11 denotes a housing of the temperature-regulating device 10, which is configured such that the electronic module 20 is completely accommodated, except for the connection contacts. The temperature-regulating device 10 or the housing 11 comprises a tubular wall section 10a and a structured area, already shown according to fig. 1, in which the housing 11 or the temperature-regulating device 10 has a plurality of discrete shaping areas, of which only a few of the reference numbers (r), (c) and (c) or (10b) are symbolically shown in fig. 2. These molding regions are configured differently: the areas (r) are depressions (grooves, dimples, setbacks) and the areas (r) are configured as bumps. The region (c) is in turn embodied as a depression and is embodied so deep that the cover 11 contacts the surface 20' and can be fixed there. Reference numerals

Showing either the inlet line 13 or the outlet line 14. In fig. 2, reference numerals 12.1, 12.2 denote a first or second distribution and collection section, wherein the distribution and collection section is in direct contact with the feed line 13 or the discharge line 14. The tempering fluid passes from the inlet line 13 through the distribution and collection sections 12.1, 12.2 into the flow space 4 or from the flow space 4 to the outlet line 14.

Fig. 3 shows an embodiment in which the outer cover 11 or structured area 10a is in an unwound state. The arrows show the longitudinal direction (length) and the circumferential direction (circumference). Structured area 10a includes a plurality of discrete styling areas ("styling") 10b, the styling configured as NACA styling or drop or streamline. Only a small fraction of the shapes are explicitly shown. The shaping 10b (apart from the end/starting section shown in the upper and lower part of fig. 3, which is designated by the

reference numeral

10d or 10e in fig. 3) extends substantially transversely to the longitudinal axis of the tubular wall section 10 a. The respective course of the shaping 10b at the transition into the respective distribution and collection section 12.1, 12.2 changes at the end/starting

end

10d, 10 e. The respective course changes continuously in such a way that the shaping 10b is bent into the respective distribution and collection section 12.1, 12.2, so that its course approaches the course or longitudinal extension of the respective distribution and collection section 12.1, 12.2. Furthermore, the build height may be gradually reduced to zero. Between them, the shaping 10b is configured substantially straight (in the circumferential direction). The builds are arranged in regular rows, with the row-to-row builds being staggered (with gaps) from one another.

Reference numeral 13 denotes an inlet line for the tempering fluid TF, wherein the corresponding arrows denote the mass flow of the tempering fluid. Reference numeral 14 accordingly denotes an outlet line for the tempering fluid TF. The feed line 13 leads into the first distribution and collection point 12.1, while the discharge line 14 leads out of or branches off from the second distribution and collection point 12.2. Thus, the first distribution and collection section 12.1 is also referred to as a pure distribution channel and the second distribution and collection section 12.2 is referred to as a pure collection section, but no distinction is made here and in the following. In fig. 3, the supply line 13 and the discharge line 14 are each arranged approximately in the middle of the longitudinal extent of the housing 11.

Fig. 4 shows an alternative embodiment in which the outer cover 11 or structured area 10a is in an unwound state. The arrows again indicate the longitudinal direction (length) and the circumferential direction (circumference). Structured area 10a includes a small number of discrete styling areas ("builds") 10b and a plurality of longitudinally extending, undulating, styling 10c (significantly longer than wide, preferably of constant cross-section) configured as NACA builds or as water drops or streamlines. Only a small number of the

shapes

10b, 10c are explicitly shown. The

moldings

10b, 10c (apart from the end/starting section shown in the upper and lower part of fig. 4, which is designated by the

reference numeral

10d or 10e in fig. 4) each extend substantially transversely to the longitudinal axis of the tubular wall section 10 a. The respective course of the shaping 10b, 10c during the transition into the respective distribution and collection section 12.1, 12.2 changes at the end/starting

end

10d, 10 e. The respective course changes continuously in such a way that the shaping 10b, 10c curves into the respective distribution and collection section 12.1, 12.2, so that its course approaches the course or longitudinal extent of the respective distribution and collection section 12.1, 12.2. Furthermore, the build height may be gradually reduced to zero. Between them, the longitudinally extending shaping 10c is configured substantially straight (in the circumferential direction). The moldings are arranged in regular rows, with discrete moldings 10b being located only in the region of the feed line 13 and the discharge line 14. In fig. 4, the inlet line 13 and the outlet line 14 are arranged in diagonally opposite corners of the housing 11.

Fig. 5 shows a further alternative embodiment of the outer cover 11 or structured area 10a in the unwound state. This embodiment is a combination of the embodiments of fig. 3 and 4. The arrows again indicate the longitudinal direction (length) and the circumferential direction (circumference). Structured area 10a includes a plurality of discrete styling areas ("builds") 10b configured as NACA builds or water droplets or streamlines, and a plurality of longitudinally extending undulating builds 10c (significantly longer than wide, preferably of constant cross-section) located therebetween. Only a small number of the

shapes

10b, 10c are explicitly shown. The

moldings

10b, 10c (apart from the end/starting section shown in the upper and lower part of fig. 5, which is designated by the

reference numeral

10d or 10e in fig. 5) each extend substantially transversely to the longitudinal axis of the tubular wall section 10 a. The respective course of the shaping 10b, 10c during the transition into the respective distribution and collection section 12.1, 12.2 changes at the end/starting

end

10d, 10 e. The respective course changes continuously in such a way that the shaping 10b, 10c curves into the respective distribution and collection section 12.1, 12.2, so that its course approaches the course or longitudinal extent of the respective distribution and collection section 12.1, 12.2. Furthermore, the build height may be gradually reduced to zero. Between them, the longitudinally extending shaping 10c is configured substantially straight (in the circumferential direction). The formations are arranged in regular rows with discrete NACA formations 10b located in the regions between longitudinally extending formations 10 c. In fig. 4, the inlet line 13 and the outlet line 14 are arranged in diagonally opposite corners of the housing 11.

Fig. 6 shows a further alternative embodiment of the outer cover 11 or structured area 10a in the unwound state. The arrows again indicate the longitudinal direction (length) and the circumferential direction (circumference). Structured zone 10a includes a plurality of discrete styling regions ("styling") 10b configured as NACA styling or water droplets or streamlines, and a plurality of longitudinally extending undulating, contouring 10c (significantly longer than wide, preferably of constant cross-section) defining tortuous flow passages 4 therebetween. Only a small number of the

shapes

10b, 10c are explicitly shown. The

moldings

10b, 10c extend substantially in the direction of the longitudinal axis of the tubular wall section 10 a. The respective course of the shaping 10b, 10c during the transition into the respective distribution and collection section 12.1, 12.2 changes at the end/starting

end

10d, 10 e. The respective course changes continuously in such a way that the shaping 10b is bent into the respective distribution and collection section 12.1, 12.2, so that its course approaches the course or longitudinal extension of the respective distribution and collection section 12.1, 12.2. Furthermore, the build height may be gradually reduced to zero. Between them, the longitudinally extending shaping 10c is configured substantially straight (in the circumferential direction). The molds are arranged at regular intervals; discrete formations 10b are located in the regions between longitudinally extending formations 10 c. In fig. 6, the inlet line 13 and the outlet line 14 are arranged in diagonally opposite corners of the housing 11.

Fig. 7 shows an embodiment similar to fig. 5, but here lacking the longitudinally extending shaping 10c (see fig. 5). With respect to fig. 5, the longitudinal direction and the circumferential direction are interchanged. The dividing line between the inlet line 13 and the outlet line 14 (after the casing 11 has been rolled into a tube) extends in a curved manner, not completely as shown in fig. 2. This can in principle be achieved in all embodiments.

Furthermore, all the embodiments shown have in common that the temperature control medium flowing in at 13 passes through the flow space surrounding the electronic module 20 from the first distribution and collection section 12.1, 12.2, which acts as a distributor, and is then collected again in the distribution and collection section 12.1, 12.2. And then output at reference numeral 14. Thus, the flow around the electronic module 20 occurs in a plurality of parallel flow channels 4. The curvature of the

shapes

10b, 10c in the first and

second end sections

10d, 10e and the geometry of the

shapes

10b, 10c itself avoid or control the formation of eddies and turbulence, which helps to minimize pressure losses and improve the temperature regulation effect.

Fig. 8 schematically shows a solution for manufacturing a thermostat according to the present disclosure by hydroforming.

Possible method steps here are:

1. manufacturing or providing a relatively thick-walled electronic module housing 21;

2. turning over (possibly with the aid of heat) a thin-walled sleeve 11 (housing) made of metal (steel) with a hydraulic interface (not shown);

(at the end) seal-welded to the two annular gaps left between module housing 21 and sleeve 11 (this is shown as image insertion in fig. 8) and forming flow leads and/or heat transfer fins (discrete shaped areas according to the present disclosure) on the sleeve, for example by means of a seam or laser weld (shown symbolically at 30);

4. the cooling channels (flow spaces or flow channels) are formed by free hydroforming (expansion) of the thin-walled housing (sleeve 11) via a hydraulic interface (possibly supported by an inner housing for carrying), which is symbolically illustrated by arrows in the figures; reference numeral 40 denotes a (hydraulic) medium which is introduced between the sleeve 11 and the module housing 21;

5. the hydraulic interface preferably also forms a port for coupling in and out a flow of tempering fluid during operation (input/

output lines

13, 14 — see above).

Claims

1. A thermostat for tempering an electronic module (20), the thermostat comprising:

a housing (11) having an interior space (4), the housing (11) comprising a tubular wall section, the housing (11) being configured for substantially completely accommodating the electronic module (20) except for electrical connection contacts (20a, 20b) and/or a driven shaft of the electronic module (20);

at least one structured region (10a) in the tubular wall section, wherein in the at least one structured region the outer cover (11) has a plurality of discrete shaped regions (10b) which extend at least partially and/or at least partially transversely to the longitudinal axis (L) of the tubular wall section (10 a);

an inlet line (13) for a temperature control fluid to the interior (4), the inlet line (13) leading to a first distribution and collection section (12.1) in the interior (4); and

an outlet line (14) for the tempering fluid, the outlet line (14) leading out or branching off from a second distribution and collection section (12.2) in the interior space (4) of the housing (11);

wherein portions of the discrete shaped areas (10b) transition into the first distribution and collection section (12.1) or into the second distribution and collection section (12.2) of the casing (11) with their respective first end section (10d) and second end section (10e) in respective course changing continuously.

2. Thermostat according to claim 1, wherein the electronic module (20) is a battery module or an electric motor.

3. Thermostat device according to claim 1, wherein a main flow direction of the thermostat fluid in the first distribution and collection section (12.1) in the region of the inlet line (13) and/or in the second distribution and collection section (12.2) in the region of the outlet line (14) is substantially parallel to a longitudinal axis of the tubular wall section, respectively.

4. Thermostat device according to claim 1, wherein the inlet line (13) and/or the outlet line (14) are each oriented substantially transversely to the longitudinal axis of the tubular wall section.

5. Thermostat device according to claim 1, wherein the discrete shaped regions (10b) are configured as raised or recessed regions of the housing (11).

6. Tempering device according to claim 1, wherein the width of at least some of said discrete styling areas (10b) is configured to be relatively longer.

7. Tempering device according to claim 6 wherein at least some of said discrete styling areas (10b) have a substantially constant cross-section.

8. Tempering device according to claim 6, wherein some of said discrete styling areas (10b) are configured to be linear or curved.

9. Tempering device according to claim 8, wherein some of said discrete styling areas (10b) are configured in the area of a first end section (10d) and a second end section (10e) thereof.

10. Tempering device according to any of claims 1 to 9 wherein at least some of said discrete styling areas (10b) are configured as drop shapes or streamlined areas or NACA styling.

11. Tempering device according to claim 6 wherein at least some relatively long zones and at least some drip, streamline or NACA shaped zones are arranged substantially in sequence along said flow direction in the flow direction of said tempering fluid.

12. Tempering device according to claim 6 wherein at least some relatively long zones and at least some drip, streamline or NACA shaped zones are arranged substantially parallel to each other in the flow direction of said tempering fluid.

13. Tempering device according to claim 11 or 12 wherein said relatively long regions define a tortuous flow passage in which drop shaped, streamlined or NACA shaped regions are arranged substantially in sequence.

14. Temperature conditioning device according to claim 1, wherein the tubular wall section has a circular cross section.

15. The temperature conditioning device of claim 14, wherein the tubular wall section has a right circular or elliptical cross section.

16. Temperature control device according to claim 14, wherein the tubular wall section is constructed in one piece or consists of at least two half-shells.

17. Thermostat arrangement according to claim 1, wherein the inlet line (13) and the outlet line (14) are arranged on a common end of the tubular wall section.

18. Thermostat arrangement according to claim 1, wherein the inlet line (13) and the outlet line (14) are arranged on different ends of the tubular wall section.

19. Thermostat arrangement according to claim 1, wherein the inlet line (13) and/or the outlet line (14) are arranged in a middle region of the tubular wall section with respect to the longitudinal extension of the wall section.

20. An electronic module (20) with a temperature-regulating device according to one of the preceding claims, wherein the electronic module (20) is accommodated in the tubular wall section.

21. The electronic module according to claim 20, wherein the electronic module (20) is a battery module or an electric motor.

22. Electronic module according to claim 20, wherein the electronic module (20) abuts the respective tubular wall section at least in the structured zone (10 a).

23. The electronic module according to claim 20, wherein the electronic module (20) and the thermostat are fixedly connected to each other.

24. The electronic module according to claim 23, wherein the electronic module (20) and the thermostat are connected by a material lock in the structured area (10a) in a recess or in a recess area.

25. Method for tempering an electronic module (20) having a tempering device according to any of claims 1-19, wherein said tempering fluid is conducted to said output line (14) through said inner space in said structured area (10a) of said tubular wall section of said housing (11) via said input line (13).

26. The method of claim 25, wherein the electronic module (20) is a battery module or an electric motor.

27. The method of claim 25, wherein the temperature regulating fluid is water.

28. The method of claim 25, wherein the temperature regulating fluid is water, oil, or a dielectric with additives.