EP3369159A1 - Kühlgehäuse für eine elektrische maschine und herstellungsverfahren für ein solches - Google Patents
Kühlgehäuse für eine elektrische maschine und herstellungsverfahren für ein solchesInfo
- Publication number
- EP3369159A1 EP3369159A1 EP16781464.9A EP16781464A EP3369159A1 EP 3369159 A1 EP3369159 A1 EP 3369159A1 EP 16781464 A EP16781464 A EP 16781464A EP 3369159 A1 EP3369159 A1 EP 3369159A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base body
- recess
- jacket
- face
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/064—Cooling by a cooling jacket in the pump casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
Definitions
- the invention relates to a cooling housing for an electrical machine, for example for an electrical machine of a motor vehicle, and a method for producing a
- Cooling housing for an electrical machine for example for an electrical machine of a motor vehicle.
- housings for electrical machines are subject to numerous functional and mechanical requirements, which they must meet reliably over the entire life of the electrical machine.
- electrical machines electrical motors
- a circulating cooling jacket which is part of the housing of the electric machine (e-machine housing).
- This cooling jacket is usually integrated on the vehicle side in the cooling circuit and is flowed through by a water-glycol mixture. Therefore, it is important that the cooling jacket be sealed inward toward the electric machine and outwardly throughout the life of the electric machine.
- the tightness of the cooling jacket are in the
- the housing may comprise a two-part stator support having a cooling structure and a pipe section covering the cooling structure and connected in a fluid-tight manner to a stator support.
- such housings have a plurality of sealing points, in particular concept-related, inner sealing points in the direction of the electrical
- DE 10 2010 042 259 A1, DE 10 2010 040 399 A1 and DE 10 2006 044 785 A1 each propose a housing for an electrical machine, which has a cylindrical stator carrier and a tube which is plugged onto the stator carrier and connected thereto, so that the tube covers a cooling structure in the stator carrier liquid-tight.
- the stator must be made very precise that the tube can be plugged onto the stator and liquid-tight can be connected to the stator.
- one-piece molded casings are known ("cast cooling jacket”), which are produced by means of a generally lost core forming a structure of the water jacket, but the manufacturing process is complex and costly.
- Object of the present invention is therefore to provide a cooling housing for an electrical
- a favorable and simple housing concept is to be provided which manages without a lost core and avoids potential cooling water leaks, in particular in the direction of the electrical machine.
- the invention relates to a cooling housing for an electrical
- a base body for receiving the electric machine wherein the main body has in its outer surface an expanding in the circumferential direction of the base body recess;
- bent shell member mechanically coupled to the base body, the bent shell member having a first end face, one through a shell surface of the shell
- Sheath element spaced from the first end face, second end face and a
- Connecting line between the first end side and the second end side of the jacket member extends and through a first terminal edge and one of the first terminal edge
- the jacket element covers the recess in the base body and rests against the base body.
- the present invention relates to a method for producing a cooling housing for an electrical machine, in particular a cooling housing according to one of the preceding claims, comprising:
- a bent shell member having a first end face, a second end face spaced from the first end face by a shell surface of the shell member, and an interruption extending along one of the shell surface
- Terminal edge opposite, second terminal edge is fixed
- a cooling housing according to the invention for an electrical machine comprises a base body for receiving the electrical machine, for example a stator support, and a bent, in particular elastic, jacket element, for example a jacket sheet, which is mechanically coupled to the base body.
- the main body In its outer surface, the main body has a recess which expands in the circumferential direction of the main body, which recess is designed in particular such that it can be flowed through by cooling liquid.
- Sheath element in particular after it is placed around the base body and before and / or after it is coupled to the base body, has a first end face, a second end face spaced from the first end face by a jacket surface of the jacket element and an interruption.
- the interruption extends along one on the
- Cloak surface extending connecting line between the first end side and the second Front side of the jacket member and is defined by a first terminal edge and one of the first terminal edge opposite, second terminal edge.
- the connecting edge and the second connecting edge of the jacket element are mechanically and / or mechanically coupled to the base body in a fluid-tight manner, wherein the mechanical coupling of the first connecting edge and the second connecting edge to each other and / or with the
- Base body takes place while the jacket element, the recess in the base body covering is placed around the body and rests against the body.
- the jacket element can be coupled in a simple manner fluid-tight to the base body independently of a shape of the base body.
- any one-piece body can be used.
- a coupling in particular a welded joint, can be automated and produced in one operation, with good accessibility from the outside. Should leaks in the fluid-tight coupling between the base body and the jacket element or between the
- connection edges of the jacket element occur, these can be recognized, since they occur outwardly and thus are visible, so that a simple reworking is possible.
- the electric machine may be an electric machine of a motor vehicle, for example a starter-generator, an electric booster and / or an electric motor
- the electric machine may be an industrial electric machine or an industrial electric machine.
- the jacket element may have a first end side edge on the first end side and a second end side edge on the second end side.
- the first end side edge and the second end side edge with the
- the jacket element can also have transitional edges between the front side edges and the connecting edges, which can likewise be coupled in a fluid-tight manner to the base body.
- the entire recess in the body along an outer edge of the jacket member can be covered fluid-tight.
- the main body may be in the form of a hollow cylinder-like element.
- the hollow cylinder-like element may be open at both end faces or be open at one end face and closed at the other end face, that is to say be pot-shaped.
- hollow cylindrical element may have an inner side, the one in particular circular cylindrical cavity for receiving the electrical machine sets.
- the hollow cylinder-like element may have an outer side whose basic shape corresponds to a lateral surface of a geometric cylinder whose base is, for example, circular, oval, elliptical or polygonal with rounded edges and / or with rounded corners. In the outside of the recess is provided.
- the recess may in particular have a uniform depth in the circumferential direction, in particular if the basic shape of the lateral surface of a geometric cylinder with a circular base area (circular cylinder) corresponds.
- the depth of the recess may vary in the circumferential direction, for example, if the basic shape of the lateral surface of a geometric cylinder having an oval or elliptical base or a polygonal base corresponds to round edges and / or with rounded corners. In these cases, the depth of the recess in areas of the base surface which have a minimum curvature can be maximum.
- the hollow cylindrical element next to the recess which is preferably positioned centrally in the longitudinal direction of the hollow cylindrical member, one or more protruding from the outside connecting elements for fixing the electric machine in the housing and / or for incorporating the cooling housing in a drive system.
- the connection elements are preferably outside the
- connection elements can be designed as screw jack, ribs and / or similar connection structures.
- connection elements can be designed as screw jack, ribs and / or similar connection structures.
- Connection elements may be provided to attach a bearing plate or other component for fixing the electric machine to the housing and / or to couple the electric machine with a transmission or other drive component of the drive system. Since the jacket element has the interruption and therefore can be spread apart in particular elastically during joining to the base body, it can be attached to the
- Connection elements and similar interference contours are passed axially.
- the main body may be formed in one or more parts.
- the main body may be formed in one or more parts.
- Base body integrally formed or has a central, coreless main part, which contains the entire recess, so that in the areas facing the electrical machine no sealing points, in particular no welds, bonds or seals are. As a result, leaks in the direction of the electric machine of avoided in the first place and the electric machine is effectively in front of the cooling medium
- the main body or the central main part can be manufactured as a cast part, for example as a chill cast part, die cast part or other cast part.
- the main body can contain zinc, aluminum, copper, nickel, iron, titanium and / or another metal or consist of one or more of these metals.
- the base body may alternatively or additionally contain or consist of an aluminum alloy, a copper alloy such as brass or silicon tombac or another alloy.
- the jacket element can be formed in one or more parts. Preferably that is
- Sheath element integrally formed since so improves the automation and the
- the interruption of the jacket element may extend from the first end side to the second end side of the jacket element.
- the first end face may be open, partially open or closed, while the second end face is open.
- the jacket element may, for example, have the shape of a hollow cylinder sector or a hollow cylinder sector with rounded transition areas or with transitional edges between the front side edges and the connecting edges.
- the jacket element may be a planar element with an outline in the form of a rectangle or a rectangle with rounded corners, which when applied to the base body and / or coupling the shell element to the base body to a hollow cylinder sector or a hollow cylinder sector with rounded transition areas between the front side edges and the terminal edges is formed.
- the jacket element is advantageously flexible and / or elastic.
- the shell element can then simply lay around the base body and is not in the form of a
- Pipe section attached to the body.
- the sheath member may contain or consist of a metal, for example aluminum and / or another metal, or an alloy, for example an aluminum alloy, a copper alloy or another alloy.
- the sheath element may contain or consist of a plastic, for example polyvinyl chloride (PVC) and / or another plastic.
- the shell element may be a sheet metal, for example a flat finished roll product, made of metal, an alloy or plastic, before and / or after the coupling of the shell element with the base body about a longitudinal axis to a hollow cylinder sector or to a hollow cylinder with rounded transition areas between the end side edges and the connecting edges is bent.
- the sheet may be a sheet metal from the body shop or a longitudinally slit and bent pipe section, which are available at low cost.
- the jacket element in particular the metal sheet, can have a thickness in the range from 1 mm to 5 mm, in particular from 2 mm to 3 mm.
- the fluid-tight mechanical coupling can be a cohesive connection, for example a soldering, welding or adhesive connection.
- the fluid-tight mechanical coupling by means of a separate seal, in particular a
- Rubber seal such as an O-ring done. It is also possible that the fluid-tight mechanical coupling is realized in some areas as a cohesive connection and in other areas by means of a separate seal.
- the welded joint may be a welded joint, which by means of a
- welding process which uses additional weld metal, for example by means of a MIG welding process (metal welding with inert gases).
- MIG welding process metal welding with inert gases
- weld can also be used with other welding methods, such as
- Beam welding process to be produced.
- the weld can be further processed.
- the base body may have a separating web which interrupts the recess in the circumferential direction of the main body, wherein the first connecting edge and the second connecting edge of the jacket element are mechanically fluid-tightly coupled to the separating web.
- the connecting edges can be easily coupled to the divider due to better accessibility, in particular welding.
- the elongation of the jacket element caused by a welding process in the circumferential direction can be compensated for by a provision on the welding joint of the separating web.
- the separating web extends parallel to a longitudinal axis of the main body.
- the divider can also along a helical line with great slope over extend an extension of the recess in the longitudinal direction of the body.
- the slope can be 1 or more.
- the divider can be formed integrally with the base body.
- the divider can be a molded divider.
- the separating web may be formed as a separate separating web, which is inserted into the recess and in the region of
- Recess is connected to the base body.
- the separating web in the region of the recess is fluid-tight welded, soldered or glued to the base body.
- the divider can be arranged in a region in which the base surface of the basic shape of the outer side of the body forming lateral surface of the cylinder has a minimum curvature.
- a height of the separating web may correspond, for example, to a depth of the recess, in particular a maximum depth of the recess, in the main body or may be smaller than this.
- the connecting edges of the jacket element can each be coupled in areas near the recess with the divider, so that there is a visible divider.
- the jacket element can span the base body along the entire circumference of the base body, so that the separating strip lies below a connection of the connecting edges and is completely covered by the jacket element.
- the separating web may have, in an outer surface of the separating web, a first passage opening, which opens into the recess of the main body.
- the first passage opening may be a supply opening for supplying cooling liquid into the recess or a discharge opening for discharging cooling liquid from the recess.
- the first passage opening may have a circular diameter in the region of the outer surface and may change in the region of the recess to form a wide slot which opens into the recess.
- the separator may have in its outer surface a second passage opening, which opens into the recess, wherein the first
- the first through-opening may be a supply opening for supplying cooling liquid into the recess and the second
- the second passage opening can likewise have a circular diameter in the region of the outer surface and can change in the region of the recess to form a wide slot which opens into the recess.
- the divider serves in addition to the simplified coupling of the jacket element to the body and the separation of hot and cold water.
- the main body can one or more further
- the jacket element may also have passage openings which extend from an outside of the
- Coolant be provided.
- Each of the passage openings can be provided with a connection.
- the nozzle can be screwed or inserted into the passage opening, for example, hammered and / or welded to the passage opening to be.
- the divider can also have one or more channels which extend between the flanks of the divider and allow a flow of cooling fluid through the divider in the circumferential direction of the body.
- the main body can have a recess bordering the recess for placing the jacket element.
- the support border may be the preparation of the mechanical coupling between the shell element and the
- Sheath element and the body simplified and improves the quality of the fluid-tight coupling.
- the support border can also extend along the separating web.
- the support border in the region of the separating web can thus support the connecting edges of the jacket element, so that the connecting edges can be easily coupled to the separating web.
- the jacket element preferably has one Shape, which corresponds to a contour of the Auflageumrandung on a side facing away from the recess side of the support border.
- the support border may for example be embedded in the outside of the body.
- the support border may have a depth that corresponds to a thickness of the shell element or is less than the thickness of the shell element.
- the support border can be formed by a bead on the outside of the base body, which rotates the recess at a predetermined distance.
- the bead may have a height equal to or less than the thickness of the shell member.
- Supporting edge formed by a combination of a recess and a bead on the outside of the body, a sum of the depth of the recess and the height of the bead of the thickness of the shell member may be equal to or less than this.
- the recess of the base body may have a cooling structure.
- the cooling structure may, for example, have cooling ribs and / or cooling knobs.
- the cooling ribs and / or cooling knobs may be aligned or arranged along the circumferential direction or may be arranged meander-shaped in the recess.
- a height of the cooling ribs may be selected so that the jacket element, when it bears against the base body, is spaced from the cooling ribs and / or cooling knobs or rests on the cooling ribs and / or cooling knobs.
- the cooling fins and / or cooling knobs can also
- a height of the cooling fins and / or cooling knobs may be smaller than the depth of the recess or correspond to this.
- the cooling structure serves to improve the cooling performance and increase the strength of the body. It increases the effective cooling surface in the direction of the cooling medium and significantly contributes to an improvement in the rigidity against bending and tangential stresses. It also ensures targeted guidance of the cooling medium.
- Cast surface can also be promoted turbulent surface flow and the heat transfer between the inner cooling jacket and the cooling medium can be improved, whereas by a smooth surface of the jacket element, the flow losses can be minimized.
- collecting areas can be provided in one or more regions of the recess, which adjoin the flanks of the separating web, and which are free of cooling ribs and / or cooling knobs, so that there is an inlet and outlet side
- the collecting areas may preferably be provided in areas of the recess whose depth in the circumferential direction is at most or at least greater than a minimum depth of the recess in the circumferential direction. As a result, large collection areas can arise, which allow an optimal distribution of the cooling medium parallel to the longitudinal axis of the body.
- the recess may have a support structure which serves as a support of the jacket element.
- the support structure may, for example, support ribs and / or support knobs, whose height is selected so that the shell element, when it rests against the base body, rests on the support ribs and / or support knobs.
- the support ribs and / or support knobs are preferably aligned along the circumferential direction of the base body, but may also be arranged meander-shaped in the recess.
- the support structure serves to improve the dimensional stability of the jacket element after welding and to avoid acoustic conspicuities due to an undefined or alternating contact between the jacket element and the cooling structure.
- the jacket element can be clamped before the welding process, so that defined contact points arise in the region of the cooling jacket, between the lateral welds. Due to the expansion during welding and the subsequent contraction of the shell element in a cooling phase, a tension can be further increased.
- the support structure can divide the cooling jacket into circumferential cooling channels, each with a cooling structure.
- cooling fins and / or cooling knobs can also serve as support ribs and / or support knobs or serve the support ribs and / or support knobs as cooling fins and / or cooling knobs.
- the cooling housing may have a plurality of recesses which are interrupted by a corresponding number of separating webs from each other.
- the recesses may be covered in a fluid-tight manner by a single jacket element component. Alternatively, each one
- Sheath element component to be covered fluid-tight may be formed as stated above. Does the outside of the body have a basic shape on, which differs from the lateral surface of a circular cylinder, the separating webs may be arranged in areas in which the base of the basic shape of the
- the cooling housing may further comprise a bearing shield system, which may comprise a bearing plate and a bearing plate cover.
- a bearing shield system which may comprise a bearing plate and a bearing plate cover.
- the end shield system can be connectable to the end face of the main body.
- the present invention further relates to a heat exchanger, in particular tube or tube heat exchanger, which is designed as the above-described cooling housing for the electric machine.
- the present invention further relates to an electrical machine having a stator, a rotor and a cooling housing according to the invention, wherein the cooling housing is shrunk onto the stator.
- the present invention relates to a drive system with such an electric machine, which is coupled to a transmission, and a motor vehicle with such an electric machine.
- the present invention further relates to a method for producing a cooling housing for an electrical machine, in particular a cooling housing, as described above.
- a base body for example a stator carrier
- the main body may be formed as described above in detail with respect to the cooling housing.
- a casting method may be used, for example, a die casting method, a die casting method or another casting method.
- the base body can also be provided from a blank by machining.
- the provision may also include merely providing a previously formed stator support.
- a bent jacket member such as a jacket sheet
- the bent jacket element has a first end face, one through a jacket surface of the jacket element from the first end face spaced, second end face and an interruption, which extends along a running on the lateral surface connecting line between the first end side and the second end side of the jacket member and by a first terminal edge and one of the first terminal edge opposite, second terminal edge is fixed.
- Sheath member is formed as described above in detail with respect to the cooling housing.
- a sheet metal of metal or plastic can be cut to size and optionally to a
- the jacket element is placed on the base body such that the
- Sheath element covers the recess. For this purpose, the cut sheet metal around the
- Base body are bent around or the hollow cylinder sector-like jacket element spread and wrapped around the body. If the main body has a bearing border, then the jacket element can preferably be positioned such that the end side edges and, if the base body also has a separating web, also the
- the jacket element covers the recess in the base body and bears against the base body
- the first connection edge and the second connection edge of the jacket element are mechanically and / or mechanically coupled to the base body in a fluid-tight manner.
- the front side edges and possibly the transition edges of the jacket element can be mechanically coupled fluid-tightly to the base body.
- the jacket element can be coupled in a fluid-tight manner to the base body by being bonded to the base body in a material-tight manner,
- a can For example, welded, soldered or glued.
- a can for example, welded, soldered or glued.
- a can for example, welded, soldered or glued.
- Welding process are used, which uses additional weld metal, for example, a MIG welding process (metal welding with inert gases). Welding process with additional weld metal allows a good weld entry
- the jacket element can also be connected to the base body by means of a separate seal, for example a rubber seal such as one or more O-rings.
- the method may further comprise providing the separating web and connecting the separating web to the main body in the region of the recess.
- the separate separating web can, for example, be cast and / or produced by machining.
- the divider can with the
- Base body for example, welded, soldered or glued.
- the base body in particular the separating web, and / or the jacket element further one or more through holes for supplying and / or discharging cooling liquid can be formed, which are optionally provided with a connecting piece.
- the tightness of the recess covered with the jacket element is preferably tested after the coupling of the jacket element with the base body. If it turns out that leaks exist along the sealing points, the sealing points are reworked, for example by welding. Due to the external weld seams occurring defects can be easily detected and reworked, for example by the seam is locally liquefied to close pores with the resulting melt.
- any welding method can be used, preferably a TIG welding process (tungsten inert gas welding process).
- the cooling housing may preferably be after the fluid-sealing
- Coupling of the jacket element with the body are shrunk onto a stator of the electric machine. Furthermore, a bearing plate system can be attached to the base body to protect the front side of the rotor. The Lüschildsystem can be screwed to the body.
- Figure 1 is an exploded view of a drive with an electric machine having a cooling housing according to the invention.
- 2 is a schematic representation of a first embodiment of a cooling housing according to the invention;
- Fig. 3 is a schematic representation of a main body of the invention
- Fig. 4 is a schematic representation of a jacket plate of the invention
- Fig. 5 is a schematic representation of the main body of the first embodiment, wherein the region of the separating web is shown as a plan view;
- Fig. 6 is a schematic representation of the main body of the first embodiment, wherein the region of the separating web is shown as a side view; a method for producing the cooling housing according to the invention of the first embodiment; a cross-sectional view of a second embodiment of a
- FIG. 1 shows an exploded view of an electric drive 1 for a motor vehicle.
- the drive 1 has an electrical machine 10, a cooling housing 1 1 with a cast-on end shield (not shown) and a screwed bearing plate 12.
- the electric machine 10 includes a stator 100 and a rotor 13, which in the
- Cooling housing 1 1 has a molded stator support 2 and a jacket plate 3.
- the stator 100 of the electric machine 10 is partially inserted into the cooling housing 1 1 in the illustration of Figure 1 and is completely in the assembled state of the
- Cooling housing 1 1 added.
- the bolted end shield 12 is formed shield-like and together with the cast-on end shield of the bearing of the rotor 13 in the stator 100.
- the bearing plate 12 covers when the rotor 13 is pushed in the stator 100 and the electric machine 10 is received in the cooling housing 1 1 , a first face of the Cooling housing 1 1 and is bolted to the cooling housing 1 1 to fix the stator 100 and the electrical machine 10 laterally to protect against environmental influences.
- the stator support 2 is a hollow cylinder-like body having an inner surface 20, an outer side surface 21, an open first end 22 and a partially closed second end 23, wherein the second end face 23 is partially closed by the cast-on end shield.
- the inner surface 20 defines a circular cylindrical cavity for receiving the electric machine 10 whose size is adapted to the extent of the stator 100 of the electric machine 10.
- the stator support 2 On the mantle surface 21, the stator support 2 has a recess 24 and a separating web 25.
- the recess 24 is spaced from the first end face 22 and the second
- End face 23 is positioned and extends in the direction of a longitudinal axis L of the cooling housing 1 1 over about% of a length of the stator 2.
- the recess 24 further extends in a circumferential direction U of the cooling housing 1 1 and is in the circumferential direction U of the
- the separating web 25 extends parallel to the longitudinal axis L of the cooling housing 1 1 and has an outer surface 250 and a first flank 251 and a second flank 252, which define the recess 24 in regions.
- the mantle surface 21 has adjacent to the first end face 22 and the second end face 23 a plurality of fferbutzen 26 for fixing the end plate 12 and a transmission and other protruding connecting elements, which protrude from the mantle surface 21.
- the separating web 25 has, in its outer surface 250, a first through-opening 253 and a second through-opening 254, into which connecting stubs 4 are hammered.
- the first through-opening 253 opens into the recess 24 on the first flank 251 of the separating web 25 and the second through-opening 254 opens into the recess 24 on the second flank 252 of the separating web 25.
- the through-openings 253, 254 have a circular diameter in the region of the outer surface 250 on and widen in the region of the respective flank 251, 252 of the separating web 25 to a wide slot 2530, as Figure 6 shows.
- the recess 24 has a cooling structure with a plurality of cooling fins 240, which extend along the circumferential direction U of the cooling housing 2 through the recess 24. Adjacent to the first flank 251 of the separating web 25, the recess 24 has a collecting area 241 for fresh, cold cooling water, so that the cooling water can be distributed in the longitudinal direction L over the entire extent of the recess 24. Adjacent to the second flank 252 of the separating web 25, the recess 24 has a collecting region 242 for heated
- Cooling water so that the cooling water, which has flowed along the cooling fins, can be collected and removed.
- the inlet and outlet of the cooling water are distributed symmetrically as possible over the length of the cooling housing 1 1, a uniform flow through the cooling housing 1 1 is achieved, since the pressure losses or lengths of the individual currents compensate each other.
- the recess 24 is surrounded by a support border 27, which is embedded in the mantle surface 20.
- the support edge 27 extends along the first flank 251 of the separating web 25, along a first boundary 243 of the recess 24 extending in the circumferential direction U, along the second flank 252 of the separating web 25 and along a second boundary 244 of the recess 24 running in the direction of circulation U.
- the jacket plate 3 is a bent to a hollow cylinder sector with rounded transition areas sheet of an aluminum alloy.
- the jacket element 3 has a
- Inner surface 30 an outer surface 31, a first end face 32 and a second
- Interrupt 34 which by a first terminal edge 340 and a second
- Terminal edge 341 is fixed.
- the jacket element 3 In the region of the first end face 32, the jacket element 3 has a first end side edge 320 and in the region of the second end face 33, the jacket element 3 has a second end side edge 330.
- the rounded transition areas are by transition edges between the front side edges 320, 330 and the
- Connection edges 340, 341 set.
- the jacket plate 3 is welded to the stator 2 along a circumferential weld seam 28 shown in FIG.
- the jacket plate 3 rests with its edges 320, 330, 340, 341 on the support border 27 and covers the recess 24 completely.
- the jacket sheet 3 is welded fluid-tight along all edges of the jacket plate 3 with the stator 2 and closes the cooling jacket to the outside.
- a stator support 2 as described above is provided.
- a non-machined blank in the form of the stator carrier described above is made available by means of a permanent mold casting process.
- a jacket sheet 3 as described above is provided.
- a sheet is cut into a rectangle with rounded corners so that a length of the later connecting edges 340, 341 by a double width of the support edge 27 are longer than the flanks 250, 251 of the divider 25 and that a length of the later
- End side edges 320, 330 by a double width of the support edge 27 are longer than the boundaries 243, 244 of the recess 24. Subsequently, the sheet is bent to the hollow cylinder sector-like jacket plate.
- the jacket plate 3 is applied to the stator 2, that the jacket plate 3, the recess 24 covers.
- the jacket plate 3 is spread elastically and placed around the stator 2 so that the first end edge 320 rests in the region of the first boundary 243 of the recess 24 on the support edge 27, the second end edge 330 in the region of the second boundary 244 of the recess 24 on the Pad rims 27 rests, the first terminal edge 340 rests in the region of the first edge 251 of the divider 25 on the support edge 27 and the second terminal edge 341 rests in the region of the second edge 252 of the divider 25 on the support border 27.
- the jacket sheet 3 is fluid-tightly welded to the stator support 2 by means of a MIG welding process, while the jacket sheet 3, the recess 24 in the stator
- the cooling housing 1 1 can be further processed, for example, be shrunk onto a stator 100. Otherwise, the leaks in the weld 28 are determined and reworked and sealed by means of a TIG welding process.
- FIGS 8 and 9 show a second embodiment of a cooling housing 1 1 '.
- the cooling housing 1 1 ' has a stator 2' and a jacket plate 3.
- the stator support 2 similar to the stator 2 of the first embodiment has a hollow cylindrical body having on its outer side 21 has a recess 24 and a divider (not shown in Figures 7 and 8).
- the recess 24 is surrounded by a support border 27.
- the support ribs 244 have a height that corresponds approximately to a depth of the recess 24 and divide the recess 24 in the direction of the longitudinal axis L of the cooling housing into three symmetrical, circumferential cooling channels, each having six, extending in the circumferential direction U cooling fins 240.
- the support ribs 244 form defined contact points with the jacket sheet 3 and avoid contact between the cooling ribs 240 and thus undesirable acoustic or fluidic side effects.
- stator support 2 ' has a bead 29 surrounding the support border 27.
- the bead 29 is designed such that it forms a wedge-shaped groove between the jacket plate 3 and the stator 2 'with the jacket plate 3, in the additional welding
- Weld metal can be inserted to increase the quality of the weld and to improve the tightness.
- the jacket sheet 3 is formed as with respect to the first embodiment. Again, the jacket plate 3 is circumferentially welded to the stator 2 'to cover the recess 24 fluid-tight.
- the cooling housing can be cast as a casting without a lost core, as it is used for the production of a "cast
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015221115.0A DE102015221115A1 (de) | 2015-10-28 | 2015-10-28 | Kühlgehäuse für eine elektrische Maschine und Herstellungsverfahren für ein solches |
PCT/EP2016/074701 WO2017071970A1 (de) | 2015-10-28 | 2016-10-14 | Kühlgehäuse für eine elektrische maschine und herstellungsverfahren für ein solches |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3369159A1 true EP3369159A1 (de) | 2018-09-05 |
Family
ID=57133218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16781464.9A Withdrawn EP3369159A1 (de) | 2015-10-28 | 2016-10-14 | Kühlgehäuse für eine elektrische maschine und herstellungsverfahren für ein solches |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3369159A1 (de) |
KR (1) | KR20180073583A (de) |
CN (1) | CN108292878B (de) |
DE (1) | DE102015221115A1 (de) |
WO (1) | WO2017071970A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3072224B1 (fr) | 2017-10-09 | 2019-10-04 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Machine electrique et procede de fabrication |
GB2569132B (en) * | 2017-12-06 | 2020-08-19 | Jaguar Land Rover Ltd | Tubular coolant sleeve |
CN109038952B (zh) * | 2018-07-28 | 2020-09-29 | 襄阳世阳电机有限公司 | 纺织用水冷电机 |
DE102018212654A1 (de) * | 2018-07-30 | 2020-01-30 | Zf Friedrichshafen Ag | Kühlung einer elektrischen Maschine |
KR102582741B1 (ko) * | 2018-11-28 | 2023-09-26 | 현대자동차주식회사 | 감속기 냉각 시스템 및 그 제어 방법 |
DE102018132500A1 (de) * | 2018-12-17 | 2020-06-18 | Valeo Siemens Eautomotive Germany Gmbh | Statorgehäuse und elektrische Maschine für ein Fahrzeug |
DE102018222494A1 (de) * | 2018-12-20 | 2020-06-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zum Dispensen von Dichtmasse und Gehäuse für eine elektrische Maschine |
US10869050B2 (en) | 2019-02-09 | 2020-12-15 | Tencent America LLC | Method and apparatus for video coding |
EP3716452B1 (de) * | 2019-03-28 | 2023-08-02 | Sumitomo Heavy Industries, Ltd. | Aktuator zur montage an einer spritzgiessmaschine, aktuatorkühlvorrichtung, spritzgiessmaschine und verfahren zur verwendung einer aktuatorkühlvorrichtung |
TWI747318B (zh) * | 2020-06-10 | 2021-11-21 | 威剛科技股份有限公司 | 導熱裝置的製造方法及其製造出的導熱裝置、馬達的製造方法及其製造出的馬達 |
DE102020125939A1 (de) | 2020-10-05 | 2022-04-07 | Audi Aktiengesellschaft | Kühlvorrichtung, Deckel für eine Kühlvorrichtung, Verfahren zur Herstellung einer Kühlvorrichtung sowie ein Gerät |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3127530A (en) * | 1962-02-21 | 1964-03-31 | Fostoria Corp | Motor driven pumps |
US5906236A (en) * | 1997-07-28 | 1999-05-25 | Heatflo Systems, Inc. | Heat exchange jacket for attachment to an external surface of a pump motor |
DE19854464C2 (de) * | 1998-06-20 | 2000-05-18 | Daimler Chrysler Ag | Flüssigkeitsgekühlter Generator |
DE102006044785A1 (de) | 2006-09-22 | 2008-04-03 | Siemens Ag | Anordnung zur Kühlung einer flüssigkeitsgekühlten elektrischen Maschine mit Korrosionsschutz durch Hochtemperaturverzinken |
DE102009001387A1 (de) * | 2009-03-06 | 2010-09-09 | Robert Bosch Gmbh | Elektromaschine |
DE102010040399A1 (de) | 2010-09-08 | 2012-03-08 | Siemens Aktiengesellschaft | Gehäuse zur Aufnahme eines elektrischen Antriebs |
DE102010042259A1 (de) | 2010-10-11 | 2012-04-12 | Robert Bosch Gmbh | Elektromaschine |
CN102904386B (zh) * | 2012-09-07 | 2015-08-19 | 联合汽车电子有限公司 | 用于电机定子冷却的水套结构 |
CN202931089U (zh) * | 2012-10-19 | 2013-05-08 | 桂林电器科学研究院 | 电机水冷机壳结构 |
US20140246933A1 (en) * | 2013-03-04 | 2014-09-04 | Remy Technologies, Llc | Liquid-cooled rotary electric machine having heat source-surrounding fluid passage |
DE102013110466A1 (de) * | 2013-09-23 | 2015-03-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Elektromaschine für den Einsatz im KFZ-Bereich |
-
2015
- 2015-10-28 DE DE102015221115.0A patent/DE102015221115A1/de not_active Withdrawn
-
2016
- 2016-10-14 CN CN201680069374.6A patent/CN108292878B/zh active Active
- 2016-10-14 KR KR1020187011861A patent/KR20180073583A/ko not_active Application Discontinuation
- 2016-10-14 WO PCT/EP2016/074701 patent/WO2017071970A1/de active Application Filing
- 2016-10-14 EP EP16781464.9A patent/EP3369159A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
CN108292878A (zh) | 2018-07-17 |
CN108292878B (zh) | 2020-09-08 |
DE102015221115A1 (de) | 2017-05-04 |
KR20180073583A (ko) | 2018-07-02 |
WO2017071970A1 (de) | 2017-05-04 |
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