DE102016223162A1 - Method for producing a housing part - Google Patents

Abstract

A method of manufacturing a housing member comprising the steps of: selecting a portion of a plate-shaped base plate; reshaping the selected portion to effect confinement of an unselected portion of the base plate through the reshaped selected portion.

Description

The invention is based on a method for producing a housing part, a housing for accommodating an electrochemical energy store, a battery system and a use of the battery system in a vehicle and / or stationary energy storage system according to the preamble of the independent claims.

State of the art

The publication DE 10 2014 203 715 A1 discloses a housing for a battery module having a base body and a cover plate, wherein at least one cooling tube is integrated into the base body. Furthermore, the invention relates to a battery module with such a housing, wherein at least a plurality of electrically interconnected battery cells is arranged in the housing and a heat generated by these is at least passed through the integrated cooling element in the body of the housing. In addition, the document further relates to a battery pack having a plurality of such battery modules, which are electrically connected, wherein the battery pack is constructed by the battery modules of modular design. Furthermore, the document relates to an electric or hybrid vehicle with such a battery pack, which serves at least partially for supplying energy to a drive unit of the electric or hybrid vehicle.

The publication DE 10 2013 207 592 B3 discloses a battery system comprising at least a first and a second battery module, each battery module being formed by a base plate and a cell stack attached to a base of the base plate, and at least one subframe, wherein on a first side of the base plate a first shoulder and at one of First side opposite the second side, a first portion is arranged, wherein in the first paragraph and in the first portion parallel to the extension direction R1 of the first paragraph and the first portion first threaded holes are arranged, wherein the battery modules by screwing arranged in the subframe through holes in the first threaded holes on the subframe are connected together.

The publication DE 11 2012 000 424 T5 discloses a battery pack having a first module assembly, a second module assembly, and a center channel. The first module assembly includes a first frame and a first cassette of battery modules disposed in the first frame. The first cartridge of battery modules includes a first plurality of prismatic cells and a first plurality of module terminals. The second module assembly includes a second frame and a second cartridge of battery modules disposed in the second frame. The second cartridge of battery modules includes a second plurality of prismatic cells and a second plurality of module terminals. The center channel extends through a center of the battery pack and connects the first module assembly to the second module assembly. The first plurality of module terminals and the second plurality of module terminals are disposed adjacent the center channel on opposite sides of the central channel.

The publication 10 2014 204 245 A1 discloses an energy storage unit with a plurality of galvanic cells, the galvanic cells each having a first outer side comprising a first electrode and a second outer side comprising a second electrode and the galvanic cells by lining up the galvanic cells with the outer sides are electrically interconnected via the electrodes. The energy storage unit also comprises a first frame element and a second frame element, which are directly or indirectly connected to each other, wherein the first frame element is arranged at one end of the series of galvanic cells and the second frame element is arranged at the other end of the series of galvanic cells ,

Disclosure of the invention

Advantages of the invention

The method according to the invention with the characterizing features of the independent claims, on the other hand, has the advantage that a region of a plate-shaped base plate is selected, this region is deformed, whereby a delimitation of an unselected region of the base plate is effected by the reshaped selected region. This makes it possible to manufacture the housing part of a base plate and a restriction of only one blank.

Further, by the one-piece housing part advantageously a flexible adaptation to bauvariantenpezifische requirements implemented, for example, requirements for a maximum gross weight, a required stability, crash safety, a vibration sensitivity or resistance of a material used against environmental influences.

Further advantageous embodiments are the subject of the dependent claims.

For reshaping the base plate, a bending method is used in which a first bending angle is selected for a first bending section of the selected area, which is substantially perpendicular to the base plate and a second bending angle is selected for a second bending section of the selected area, which is substantially perpendicular to the first bending section.

Thereby, a particular stability of the effected restriction of the non-selected area of the base plate is achieved.

A width of the first bending portion and a width of the second bending portion are selected such that the confinement has a U-shaped profile.

By the U-shaped profile creates a cavity which is advantageously suitable for receiving components, such as electrical cables, or stabilizing components. Further, the containment with the U-shaped profile has a particular stability against mechanical stress on the containment, the base plate and / or the housing part.

For reshaping the base plate, a third bending angle, which is substantially perpendicular to the second bending section, is selected for a third bending section of the selected area.

This causes a confinement having a substantially closed profile.

A width of the first bending section, a width of the second bending section and / or a width of the third bending section are selected such that the boundary has a substantially closed, rectangular profile.

By the resulting cavity components, such as electrical cables and / or monitoring devices can be introduced into the cavity.

A contact surface between a side edge of the third bending portion and the non-selected portion of the base plate is glued and / or welded.

As a result, a particular stability of the restriction is achieved. Next, an increased tightness of the cuboid profile against moisture and / or improved resistance of the cuboid profile is achieved against environmental influences.

Furthermore, special requirements for electromagnetic compatibility, conductivity, temperature influence, thermal conductivity and / or weight of the housing part can be fulfilled.

A space enclosed by the U-shaped profile and / or the cuboidal profile can be filled with a filling material, for example plastic, cementitious material and / or foamy material.

As a result, an increased stability of the containment and thus of the housing part is achieved, whereby a special crash safety of the housing part can be realized.

At least one deep-drawn portion of the unselected region of the base plate is formed into a hollow part.

By the hollow part, for example in the form of domes with a rectangular or cylindrical profile, attachment, stabilization, fixation and / or positioning of other components is possible, for example, cooling devices or stabilizing components, advantageously while maintaining a one-piece design of the housing part.

A cross member is positively and / or materially connected to at least a portion of the non-selected region of the base plate, the reshaped selected region and / or at least one hollow part, for example by clinching.

This achieves an improvement in stability. Next, the cross member is used for securing other components, such as cooling devices.

For tempering an electrochemical energy storage, a cooling plate is introduced into the confinement of the base plate. This can be done by simply inserting the cooling plate and / or by insertion into the border with the U-shaped profile.

The cooling plate is non-positively and cohesively connected to the base plate, the cross member, the hollow part and / or the delimitation of the base plate, for example by welding, bonding and / or clinching.

By the cooling plate, a good heat dissipation is ensured, the waste heat, for example, arises during operation of the electrochemical energy storage, and allows a high degree of automation in a production of the housing part.

To increase the stability of the housing part, at least one component is positively, positively and / or materially connected to the base plate, the first bending section, the second bending section and / or the third bending section.

The at least one component is, for example, a U-shaped frame element which, with the U-shaped opening, comprises the first, the second and the third bending section. This achieves a further increase in stability to physical agents.

Advantageously, depending on a loading zone of the housing part, these components can be made of different materials, whereby a weight reduction is achieved.

Advantageously, a housing for receiving an electrochemical energy store comprises a housing part produced by the method according to the invention.

Due to the one-piece housing part a construction variant specific adaptation of the housing part is easily possible. Furthermore, the housing part can be manufactured with a comparatively low manufacturing outlay compared with conventional methods.

Advantageously, a battery system is a housing for receiving an electrochemical energy store, which comprises at least one housing part produced by the method according to the invention.

Advantageously, the battery is used in a vehicle and / or stationary battery system with a lithium-ion, lithium-sulfur, lithium-air and / or solid electrolyte energy storage.

The electrochemical energy stores in the vehicle and / or stationary energy storage system are particularly protected against mechanical and electromagnetic environmental influences, but also against moisture and / or chemicals. Furthermore, requirements for mechanical stability, crash resistance and physical and electromagnetic tightness are advantageously achieved.

list of figures

Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.

• 1a eine erste Ausführungsform zur Herstellung einer Eingrenzung; und
• 1b eine zweite Ausführungsform zur Herstellung einer Eingrenzung; und
• 2 eine erste Ausführungsform einer Eingrenzung; und
• 3 eine zweite Ausführungsform einer Eingrenzung; und
• 4 eine erste Ausführungsform eines Gehäuseteils; und
• 5 eine zweite Ausführungsform eines Gehäuseteils; und
• 6 die erste Ausführungsform des Gehäuseteils mit einem Querträger; und
• 7 die erste Ausführungsform des Gehäuseteils mit Hohlteilen und
• 8 eine Ausführungsform von Stabilisierungselementen für das Gehäuseteil.

Show it:

• 1a a first embodiment for making a confinement; and
• 1b a second embodiment for making a confinement; and
• 2 a first embodiment of a confinement; and
• 3 a second embodiment of a confinement; and
• 4 a first embodiment of a housing part; and
• 5 a second embodiment of a housing part; and
• 6 the first embodiment of the housing part with a cross member; and
• 7 the first embodiment of the housing part with hollow parts and
• 8th an embodiment of stabilizing elements for the housing part.

Detailed description of the embodiments

The same reference numerals denote the same device components in all figures.

1a shows a first embodiment for making a confinement. A plate-shaped base plate 100a is in a selected area 101 the base plate 100a to effect a delimitation and to a non-selected area 102 the base plate 100a divided. The plate-shaped base plate 100a is made in one piece, for example, from a sheet metal part and / or a thermoplastic material.

1b shows a second embodiment for making a confinement. In 1b is a plate-shaped base plate 100b shown. The plate-shaped base plate 102 has a selected area 102b the base plate 100b to effect a delimitation as well as a non-selected area 101b the base plate 100b on. The selected area 102b includes exterior areas of the base plate 100b , This will make a non-selected area 101b circumscribed confinement causes.

2 shows a first embodiment of a confinement. In 2 is a housing part 200 shown with U-shaped profile. The limitation 201 includes two bending sections 201 ( 1 ), 202 ( 2 ). A bending angle of the first bending section 201 ( 1 ) is substantially perpendicular to a base plate 202 , A bending angle of the second bending section 202 ( 2 ) is substantially perpendicular to the first bending portion 201 ( 1 ).

This creates the U-shaped profile, which is a cavity 203 includes.

3 shows a second embodiment of a confinement. In 3 is a housing part 300 represented with cuboidal profile. The limitation 301 includes three bending sections 301 ( 1 ), 301 ( 2 ), 301 ( 3 ). A bending angle of the first bending section 301 ( 1 ) is substantially perpendicular to a base plate 302 , A bending angle of the second bending section 301 ( 2 ) is substantially perpendicular to the first bending section 301 ( 1 ). A bending angle of the third bending section 301 ( 3 ) is substantially perpendicular to the second bending section 301 ( 2 ). Through the three bending sections 301 ( 1 ), 301 ( 2 ), 303 ( 3 ), the cuboid profile is generated. Between the third bending section 301 ( 3 ) and the base plate 302 creates a contact surface 303a between the third bending section and the base plate 302 and a second contact surface 303b between a side edge of the third bending section 301 ( 3 ) and the base plate 302 ,

4 shows a first embodiment of a housing part. In 4 is a housing part 400 with circumferential confinement 401 shown. The limitation 401 has a cuboidal profile and borders and a base plate 402 one. A selected area of the base plate 402 is in three bending sections 404 ( 1 ), 404 (2), 404 ( 3 ) to the limitation 401 bent. One between the third bending section 404 ( 3 ) and the base plate 402 resulting contact surface 403 is advantageously sealed by a welding process.

5 shows a second embodiment of a housing part. In 5 is a housing part 500 with circumferential confinement 501 shown, with the limitation 501 has a U-shaped profile. A base plate 502 is due to the circumscribed confinement 501 limited. In the illustrated embodiment, a cavity of the U-shaped profile with a filling material 503 filled. The limitation 501 includes a first bending section 504 ( 1 ) and a second bending section 504 ( 2 ).

6 shows the first embodiment of the housing part with a cross member. In 6 is a housing part 600 with a circumferential confinement 601 shown. The limitation 601 has a cuboid profile. A base plate 602 is by the limitation 601 limited. The limitation 601 includes a first bending section 604 ( 1 ), 604 ( 2 ), 604 ( 3 ). A crossbeam 605 is at least with a portion of the unselected area of the base plate 602 and / or the reshaped selected area, in particular the third bending section 604 ( 3 ), connected.

7 shows the first embodiment of the housing part with hollow parts. In 7 is a housing part 700 with circumferential confinement 701 shown. The limitation 701 has a cuboid profile. A base plate 702 of the housing part 700 comprises a plurality of hollow parts 706a . 706b . 706c , The hollow part 706a is through a deep draw section of the unselected area of the base plate 702 shaped, wherein the hollow part 706a has a cube-shaped profile. The hollow part 706b is by forming a deep-drawn portion of the base plate 702 shaped, wherein the hollow part 706b has a cuboid profile. The hollow part 706 is by forming a deep-drawn portion of a portion of the base plate 702 shaped, wherein the hollow part 706c has a cylindrical profile. By a different choice of profile is a simple adaptation to bauvariantenpezifische requirements possible. Another advantage is that the hollow parts 706a . 706b . 706c are suitable for attachment of other components, wherein the housing part 700 continue to be made in one piece.

8th shows an embodiment of stabilizing elements for the housing part. In 8th is a housing part 800 shown with U-shaped profile, which is a base plate 802 which, which by a limitation 801 is bounded with two bending sections. A first bending section 804 ( 1 ) includes a bending angle substantially perpendicular to the base plate 802 is. A second bending section 804 ( 2 ) includes a bending angle substantially perpendicular to the first bending portion 804 ( 1 ). Next shows 8th a first component 807 ( 1 ), a second component 807 ( 2 ), a third component 807 ( 3 ), a fourth component 807 ( 4 ) for increasing the stability of the housing part, in particular the delimitation 801 , The components 807 ( 1 ), 807 ( 2 ), 807 ( 3 ), 807 ( 4 ) have a U-shaped profile. In the embodiment shown, the components 807 ( 1 ), 807 ( 2 ), 807 ( 3 ), 807 ( 4 ) with an opening of the U-shaped profile on the confinement 801 put on and, for example, positive, positive and / or cohesive with the limitation 801 connected.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102014203715 A1 [0002]
• DE 102013207592 B3 [0003]
• DE 112012000424 T5 [0004]

Claims (14)

Method for producing a housing part (200, 300, 400, 500, 600, 700, 800) with the following steps: - selecting a region (101a, 102b) of a plate-shaped base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802); - converting the selected area (101a, 102b) to effect a confinement (202, 301, 401, 501, 601, 701, 801) of a non-selected area (102a, 101b) of the base plate (100a, 100b, 202, 302, 402 , 502, 602, 702, 802) through the reshaped selected area (101a, 102b). Method according to Claim 1 , characterized in that for the forming of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802) a bending method is used, characterized in that - for a first bending section (201 (1), 301 (FIG. 1), 404 (1), 504 (1), 604 (1), 804 (1)) of the selected region (101a, 102b), a first bending angle is selected which is substantially perpendicular to the base plate (100a, 100b, 202 , 302, 402, 502, 602, 702, 802) and - for a second bending section (201 (2), 301 (2), 404 (2), 504 (2), 604 (2), 804 (2)) the selected region (101a, 102b) is selected to have a second bending angle which is substantially perpendicular to the first bending section (201 (1), 301 (1), 404 (1), 504 (1), 604 (1), 804 (804)). 1)). Method according to Claim 2 characterized in that a width of the first bending portion (201 (1), 301 (1), 404 (1), 504 (1), 604 (1), 804 (1)) and a width of the second bending portion (201 (201) 2), 301 (2), 404 (2), 504 (2), 604 (2), 804 (2)) are selected such that the confinement (200, 501, 801) has a U-shaped profile. Method according to Claim 3 characterized in that for forming the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802) - for a third bending section (301 (3), 404 (3), 504 (3), 604 (3), 804 (3)) of the selected area, a third bending angle is selected which is substantially perpendicular to the second bending section. Method according to Claim 4 characterized in that a width of the first bend portion (201 (1), 301 (1), 404 (1), 504 (1), 604 (1), 804 (1)), a width of the second bend portion (201 (201) 2), 301 (2), 404 (2), 504 (2), 604 (2), 804 (2)) and / or a width of the third bending portion (301 (3), 404 (3), 504 (3 ), 604 (3), 804 (3)) are selected such that the confinement (300, 401, 601, 701) has a substantially closed, cuboidal profile. Method according to Claim 5 further comprising the following step: bonding and / or welding a contact surface (303a, 303b, 403) between a side edge of the third bending section (301 (3), 404 (3), 504 (3), 604 (3), 804 (804) 3)) and the non-selected area of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802). Method according to one of Claims 3 to 6 Fermer comprising the following step: - filling a space enclosed by the U-shaped profile or the cuboid profile space (203, 503) with a filling material. Method according to one of the preceding claims, comprising the following step: - Forming at least one deep drawn portion of the non-selected area of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802) to a hollow part (706a, 706b, 706c). Method according to one of the preceding claims, comprising the following step: - positively, positively and / or materially connecting a cross member (605) with at least a portion of the non-selected portion (102a, 101b) of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802) and / or the reshaped selected area (101a, 102b). Method according to one of the preceding claims, with further following steps: - Introducing a cooling plate for controlling the temperature of an electrochemical energy storage in the confinement of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802); connecting the cooling plate to the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802) by force, form and / or material engagement, the cross member (605), the hollow part (706a, 706b, 706c ) and / or the confinement (201, 301, 401, 501, 601, 701, 801) of the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802). Method according to one of the preceding claims, with the further following step: - positively, positively and / or materially connecting a component (807 (1), 807 (2), 807 (3), 807 (4)) to the base plate (100a, 100b, 202, 302, 402, 502, 602, 702, 802), the first bending portion (201 (1), 301 (1), 404 (1), 504 (1), 604 (1), 804 (1)), the second bending portion (201 (2) , 301 (2), 404 (2), 504 (2), 604 (2), 804 (2)) and / or the third bending section (301 (3), 404 (3), 504 (3), 604 (FIG. 3), 804 (3)). Housing for receiving an electrochemical energy storage which at least one of the Claims 1 to 11 produced Housing part (200, 300, 400, 500, 600, 700, 800) includes. Battery system, the housing after Claim 12 includes. Use of the battery system after Claim 13 in a vehicle and / or stationary energy storage system.

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