CN106911211A - The sealing structure that three parts coordinate - Google Patents
The sealing structure that three parts coordinate Download PDFInfo
- Publication number
- CN106911211A CN106911211A CN201510971342.2A CN201510971342A CN106911211A CN 106911211 A CN106911211 A CN 106911211A CN 201510971342 A CN201510971342 A CN 201510971342A CN 106911211 A CN106911211 A CN 106911211A
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- CN
- China
- Prior art keywords
- sealing
- coordinates
- housing
- procapsid
- sealing ring
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Classifications
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- 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
-
- 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
Abstract
The present invention provides the sealing structure that a kind of three part coordinates, including：Procapsid, extruding housing and back casing are successively with the motor housing for merging composition closing；Coolant channel, it is arranged in procapsid circumference；Sealing ring, it is clipped between procapsid and extruding housing and is sealed.The sealing structure that a kind of three part of present invention design coordinates, back-end sealing structure can effectively be sealed to motor, and with relatively low manufacturing cost.
Description
Technical field
The present invention relates to motor in electric automobile manufacturing technology field, in particular to the sealing structure that a kind of three parts of Motor for Electric Automobile coordinate.
Background technology
Along with the high speed development of automobile industry, petroleum resources shortage, environment are warmed and have been burst a series of problems, such as climate warming.New-energy automobile with pure electric automobile as representative will turn into one of important directions of China's development of automobile industry.And automobile power-driven system, used as the unique power source of pure electric automobile, its performance directly affects dynamic property, stability and the comfortableness of vehicle.
Existing motor sealing structure is complicated, and manufacturing cost is higher, and sealing effectiveness is not ideal enough, does not reach related request of the automobile industry to motor seal performance.
In view of this, it is necessary to design a kind of sealing structure of Motor for Electric Automobile, motor can be sealed.
The content of the invention
For above-mentioned technical problem, a kind of sealing structure of three part cooperation of present invention design can effectively be sealed to motor, and with relatively low manufacturing cost.
To achieve the above object, the invention provides the sealing structure that a kind of three part coordinates, including：Sealing ring；Supporting construction, it applies support pressure radially to sealing ring；First extrusion structure, it applies squeeze pressure axially upward to sealing ring；Second extrusion structure, it can cooperate with supporting construction, the first extrusion structure, and apply squeeze pressure and squeeze pressure radially inward axially downward to sealing ring；Wherein, sealing ring is clipped in supporting construction, the first extrusion structure and the second extrusion structure and realizes sealing.
Further, the section of the supporting construction is：Vertical walls, the part that its support sealing ring will be moved to procapsid.
Further, the section of first extrusion structure is：Thimble, it applies extruding force to sealing ring.
Further, the section of second extrusion structure is：Ladder, it is embedded in another part of sealing ring.
Further, the ladder is circumferentially disposed along extruding housing.
Further, the ladder is further included：First step, it is configured to extrude the circumferential outer edge of housing；And second step, it is highly less than first step, and to be arranged on the inner side of extruding housing circumference outer edge close to first step ground mode.
Further, the sealing structure that three part coordinates includes：Angle between the first step and the second step is more than or equal to 90 degree and less than 180 degree.
Further, have between the first step and the second step along the circumferentially disposed groove of extruding housing.
Further, the procapsid includes：The supporting construction is the outer side surface of procapsid；First extrusion structure is the interior sidewall surface for extruding housing；Second extrusion structure is the circumferential edge surface that back casing coordinates side with procapsid；Wherein, the procapsid, the extruding housing and the back casing are successively with the motor housing for merging composition closing.
Further, the sealing structure that three part coordinates includes：The extruding edge stepped structure of the housing towards back casing side；The edge of the back casing direction extruding housing side is in top acicular texture；The procapsid is in face of extruding housing and the perpendicular wall structure in side of back casing；Wherein, step structure, top acicular texture and vertical walls structure complement each other to form closed cavity, to accommodate sealing ring.
Further, the sealing structure that three part coordinates includes：The back casing is linked in end of the procapsid towards back casing；Also, the extruding housing is resisted against the upper side of back casing towards the edge of back casing side.
Further, the sealing structure that three part coordinates includes：The extruding edge stepped structure of the housing towards back casing side；The back casing is to the edge of extruding housing side in top acicular texture；The procapsid is in face of extruding housing and the perpendicular wall structure in side of back casing；Wherein, step structure, top acicular texture and vertical walls structure complement each other to form closed cavity, to accommodate sealing ring.
Further, the sealing structure that three part coordinates also includes：Coolant channel, it is arranged in procapsid circumference.
The sealing structure that a kind of three part that the present invention is provided coordinates, can effectively be sealed to motor, and with relatively low manufacturing cost.
The additional aspect of the present invention and advantage will be set forth in part in the description, and these will become apparent from the description below, or be recognized by practice of the invention.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and schematic description and description of the invention is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the explosive view of the sealing structure of the three parts cooperation of one embodiment of the invention；
Fig. 2 is the back-end sealing structure sectional view of the motor of one embodiment of the invention；
Fig. 3 is the close-up schematic view of G circles in Fig. 2 devices.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, the present invention is described in further detail with reference to the accompanying drawings and detailed description.Embodiments of the present invention are described in more detail below, the example of the implementation method is shown in the drawings, wherein same or similar label represents same or similar element or the element with same or like function from start to finish.Implementation method below with reference to Description of Drawings is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated singulative " " used herein, " one ", " described " and " being somebody's turn to do " may also comprise plural form.It should be further understood that, used in specification of the invention wording " including " refer to the presence of the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or add one or more other features, integer, step, operation, element, component and/or their group.It should be understood that when we claim element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or can also there is intermediary element.Wording "and/or" used herein includes one or more associated any cells for listing item and all combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined all terms used herein include that technical term and scientific terminology have the general understanding identical meaning with the those of ordinary skill in art of the present invention.It should also be understood that those terms defined in such as general dictionary should be understood that with the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not be with idealizing or excessively formal implication be explained.
Fig. 1 is the explosive view of the sealing structure of the three parts cooperation of one embodiment of the invention.As shown in figure 1, the sealing structure that the present invention is provided is applied to the integrated driving device of electric automobile, the integrated driving device can include：The motor driven using electric current and the inverter changed to AC-to-DC electricity.Procapsid 4, extruding housing 3 and back casing 1 constitute the motor housing matched somebody with somebody successively and merge and constitute and close with merging successively.The housing can be as the shell of integrated driving device.The sealing structure that three parts that the present invention is provided coordinate, can integrate motor and inverter, save assembly space, reduce weight of equipment, the support for supporting inverter be saved, so as to manufacturing cost is greatly reduced.
Inverter (not shown) is arranged in back casing 1, and it can include capacitance module and power model, and capacitance module has the DC connecting end electrically connected with dc source；It has multiple switch circuit, DC input terminal and AC output terminal to power model, and direct-flow input end is electrically connected to dc source (for example, Vehicular accumulator cell), and AC output terminal is electrically connected to electric motor.The direct current obtained from direct-flow input end is converted to alternating current by on-off circuit, and is exported by ac output end.Inverter case (that is, back casing 1) encapsulates in the chamber formed by it power model and capacitance module.
The stator module of motor is provided with three AC input terminals at it towards one end of inverter, and AC input terminal sets the end downside of stator module.Correspondingly, three AC output terminals are provided with the downside of one end of the power model of inverter, after the completion of three AC output terminals are arranged so as to turn inverter and group of motors, three AC output terminals and corresponding three AC input terminal directly contacts, for example it is connected through a screw thread, welding, solder, solder brazing, riveting and Elastic Contact link together, and without using extra connecting line, this reduces manufacturing cost.
Because the drive device of integrated motor and inverter needs to cool down motor and inverter, therefore the minor structure of composition coolant channel can be designed on procapsid 4, extruding housing 3 and back casing 1, so that after procapsid 4, extruding housing 3 and back casing 1 coordinate successively, the coolant flow channel (that is, coolant channel) of closing is formed in enclosure interior.
As a kind of embodiment, as shown in figure 1, procapsid 4 can include：Protecgulum 4-1；Cylinder 4-2 integrally formed with protecgulum and back seat 4-3；Wherein：The radial direction maximum radius value of protecgulum 4-1>The radial direction maximum radius value of back seat 4-3>The radial direction maximum radius value of the radial direction maximum radius value more than cylinder 4-2 of the radial direction maximum radius value of cylinder 4-2, i.e. the radial direction maximum radius value of the radial direction maximum radius value more than back seat 4-3 of protecgulum 4-1, and back seat 4-3.For example, the radial direction maximum radius value of the extruding housing 3>The radial direction maximum radius value of back seat 4-3；Also, the radial direction maximum radius value of the extruding housing 3<The radial direction maximum radius value of protecgulum 4-1.So, procapsid 4 can be linked in extruding housing 3, and causes back seat 4-3 through extruding housing 3 to carry out subsequent cooperation with back casing 1.Based on this structure, the invention provides the sealing structure that a kind of three part coordinates, can include：Procapsid 4, extruding housing 3 and back casing 1, these three housings are successively with the motor housing for merging composition closing；Coolant channel 4-6, it is arranged in the circumference of procapsid 4；Sealing ring 2-2, it is clipped between procapsid 4 and extruding housing 3 and is sealed.
Due to the radial direction maximum radius value of the radial direction maximum radius value more than back seat 4-3 of protecgulum 4-1, and radial direction maximum radius value of the radial direction maximum radius value of back seat 4-3 more than cylinder 4-2, therefore the shape of procapsid 4 is actually similar to the small dumbbell-shaped structure in the big centre in two, so that after procapsid 4 coordinates with extruding housing 3, the circulation passage of cooling agent is formed between cylinder 4-2 and extruding housing 3.
Fig. 2 is the back-end sealing structure sectional view of the motor of one embodiment of the invention.As shown in Figure 2, seen by order from the bottom up, the bottom of integrated driving device constitutes cavity by back casing, procapsid, extruding housing, cooling agent is (for example, water) entrance covers after being arranged on, when cooling agent is when lower cavity is flowed through, the calorimetric of inverter electronic component generation is taken away, play a part of cooling.It is also conceivable to increase some compressing tablets between back casing and extruding housing, to adjust the cavity size flowed for cooling agent.Coolant channel in the middle part of integrated driving device is made up of stator casing, i.e. procapsid 4, extruding housing 3 and back casing 1, wherein：In stator casing bottom, sealed using sealing ring 2-2 (for example, O-ring) between procapsid 4, extruding housing 3 and back casing 1.Procapsid 4 has the small magnitude of interference with back casing 1 during coolant flow channel is formed, and is completed by press-loading process.Additionally, procapsid 4 and back casing 1 can be linked by bolt.Different from the cooling agent effect circulated in the cavity in integrated driving device lower inverter, the coolant channel at middle part and the coolant outlet on top are mainly stator are cooled down.
Fig. 3 is the close-up schematic view of G circles in Fig. 2 devices.As shown in figure 3, procapsid 4 includes：Supporting construction S1, it applies support pressure radially to sealing ring 2-2.For example, can be designed as supporting construction S1, its section is：Vertical walls, the part that its support sealing ring 2-2 will be moved to procapsid 4.For example, back casing 1 includes：First extrusion structure P1, it applies squeeze pressure axially upward to sealing ring 2-2.For example, can be by the section of supporting construction S1：Thimble, it applies extruding force to sealing ring 2-2.For example, extruding housing 3 includes：Second extrusion structure P2, it can cooperate with supporting construction S1, the first extrusion structure P1, and apply squeeze pressure and squeeze pressure radially inward axially downward to sealing ring 2-2.For example, can be designed as the first extrusion structure P1, its section is：Ladder, it is embedded in another part of the first sealing ring 2-1.For example, ladder is circumferentially disposed along extruding housing 3.For example, ladder is further included：First step, its outer edge for being configured to extrude the circumference of housing 3；And second step, it is highly less than first step, and to be arranged on the inner side of the circumferential outer edge of extruding housing 3 close to first step ground mode.For example, the angle between the first step and the second step is more than or equal to 90 degree and less than 180 degree.For example, having between first step and the second step along the circumferentially disposed groove of extruding housing 3.For example, the back casing 1 is linked in procapsid 4 towards the end of back casing 1；Also, the extruding housing 3 is resisted against the upper side of back casing 1 towards the edge of the side of back casing 1.For example, the extruding edge stepped structure of the housing 3 towards the side of back casing 1；The back casing 1 towards extruding housing 3 side edge in top acicular texture；The procapsid 4 is in face of extruding housing 3 and the perpendicular wall structure in side of back casing 1；Wherein, step structure, top acicular texture and vertical walls structure complement each other to form closed cavity, to accommodate sealing ring 2-2.For example, sealing ring 2-2 can be O-ring.
Above-mentioned sealing structure can apply in electric automotive motor, in the drive device that especially motor is integrated with inverter.For the formation of sealing structure, back casing 1, the first sealing ring 2-1 and extruding housing 3 complement each other to form another sealing.Above two sealing structure belongs to delta seal (axially and radially), and such sealing is relatively reliable.
Above-mentioned sealing structure can not only generate the shell of protection field frame assembly, rotor assembly and inverter; and the different cooling structures cooled down respectively to the stator general name and inverter of motor are configured with the shell being combined into; so as to form the coolant flow channel of integrated insertion, for the overall cooling of motor and inverter.Coolant flow direction is mainly made up of two parts：Bottom, middle part.The bottom flow direction：Cavity is constituted by coolant entrance, back casing 1 and/or some compressing tablets, coolant takes away the calorimetric of inverter electronic component generation when cavity is flowed through, and plays a part of cooling.The middle part flow direction：The coolant channel at middle part is by procapsid 4, extruding housing 3, two sealing rings, back casings 1 are constituted, wherein procapsid 4 has the small magnitude of interference with extruding housing 3, procapsid 4 and back casing 1 during formation passes through, completed by press-loading process, and procapsid and back casing are linked by bolt, the coolant channel at middle part is mainly as stator is cooled down.
As another embodiment, the invention provides a kind of back-end sealing structure of Motor for Electric Automobile, including：Procapsid 4, extruding housing 3 and back casing 1 are successively with the motor housing for merging composition closing；Coolant channel, it is arranged in the circumference of procapsid 4；Sealing ring 2-2, it is clipped between procapsid 4, extruding housing 3 and back casing 1 and is sealed.
In embodiment of the present invention scheme, employ O-ring sealing, and unique mechanisms are formd on seal groove, seal groove is formed in procapsid 4, extruding housing 3 and the respective outer side edges of back casing 1, it is relatively reliable that this sealing belongs to the such sealing of delta seal (axially and radially).O-ring seal is a kind of extrusion pressing type sealing, and the basic functional principle of extrusion pressing type sealing is that elastic deformation occurs by seal, causes contact, contact not to be leaked then, otherwise then leak more than the internal pressure of sealed medium on sealing contact surface.
As shown in figure 1, procapsid has a shunting muscle in the coolant channel at middle part, when coolant is flowed into from inverter, coolant flows for one week counterclockwise, then to delivery port position, so forms a cooling on a large scale.For example, the shunting S-type edge of muscle is arranged on the cylinder between protecgulum and back seat parallel to the axial direction of cylinder, so as to coolant channel be separated so that cooling agent can be circulated along coolant channel along a predetermined direction.
Further, since using design structure of the invention, the procapsid 4 and back casing 1 of present invention design can use extrusion process, and extruding housing 3 can use extrusion process.With in the prior art, it is generally entirely different by the way of sand casting housing forms coolant flow channel, prior art all concentrates on all runners in one housing, so as to increase manufacture difficulty, and the present invention completely simplified in technique for casting into the relative housing of scheme of housing using this 3 parts groups it is a lot, so as to improve yield rate.The problem that the sand casting process of prior art is present is easily to produce stomata during sand casting, causes coolant flow channel to leak, and yield rate is low.
The sealing structure that a kind of three part of present invention design coordinates, can seal to the cooling body that motor and inverter are integrated, and with relatively low manufacturing cost.
The above is only some embodiments of the invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. the sealing structure that a kind of three part coordinates, it is characterised in that including：
Sealing ring (2-2)；
Supporting construction (S1), it applies support pressure radially to sealing ring (2-2)；
First extrusion structure (P1), it applies squeeze pressure axially upward to sealing ring (2-2)；
Second extrusion structure (P2), it can be with supporting construction (S1), the first extrusion structure (P1) phase interworking
Close, and apply squeeze pressure and squeeze pressure radially inward axially downward to sealing ring (2-2)；
Wherein, sealing ring (2-2) is clipped in supporting construction (S1), the first extrusion structure (P1) and the second extrusion structure
(P2) sealing is realized.
2. the sealing structure that three part according to claim 1 coordinates, it is characterised in that the branch
The section of support structure (S1) is：
Vertical walls, what its support sealing ring (2-2) will be moved towards supporting construction (S1) direction
A part.
3. the sealing structure that three part according to claim 1 coordinates, it is characterised in that described the
The section of one extrusion structure (P1) is：
Thimble, it applies extruding force to sealing ring (2-2).
4. the sealing structure that three part according to claim 1 coordinates, it is characterised in that described the
The section of two extrusion structures (P2) is：
Ladder, it is embedded in another part of sealing ring (2-2).
5. the sealing structure that three part according to claim 4 coordinates, it is characterised in that the rank
Ladder is circumferentially disposed along extruding housing (3).
6. the sealing structure that three part according to claim 4 coordinates, it is characterised in that the rank
Ladder is further included：
First step, it is configured to extrude the circumferential outer edge of housing (3)；And
Second step, it is highly less than first step, and is arranged on close to first step ground mode
The inner side of extruding housing (3) circumference outer edge.
7. the sealing structure that three part according to claim 6 coordinates, it is characterised in that further
Including：
Angle between the first step and the second step is more than or equal to 90 degree and less than 180
Degree.
8. the sealing structure that three part according to claim 1 coordinates, it is characterised in that before described
Housing (4) includes：
The supporting construction (S1) is the outer side surface of procapsid (4)；
First extrusion structure (P1) is the interior sidewall surface for extruding housing (3)；
Second extrusion structure (P2) is the circumferential edge surface that back casing (1) coordinates side with procapsid (4)；
Wherein, the procapsid (4), extruding housing (3) and the back casing (1) are successively with merging
Constitute the motor housing of closing.
9. the sealing structure that three part according to claim 8 coordinates, it is characterised in that further
Including：
Edge stepped structure of extruding housing (3) towards back casing (1) side；
The back casing (1) is to the edge of extruding housing (3) side in top acicular texture；
The procapsid (4) is in face of extruding housing (3) and the perpendicular wall structure in side of back casing (1)；
Wherein, step structure, top acicular texture and vertical walls structure complement each other to form confined air
Chamber, to accommodate sealing ring (2-2).
10. the sealing structure that three part according to claim 8 coordinates, it is characterised in that also include：
Coolant channel (4-6), it is arranged in procapsid (4) circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971342.2A CN106911211B (en) | 2015-12-22 | 2015-12-22 | The sealing structure of three components cooperation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971342.2A CN106911211B (en) | 2015-12-22 | 2015-12-22 | The sealing structure of three components cooperation |
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| Publication Number | Publication Date |
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| CN106911211A true CN106911211A (en) | 2017-06-30 |
| CN106911211B CN106911211B (en) | 2019-06-21 |
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ID=59201097
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510971342.2A Active CN106911211B (en) | 2015-12-22 | 2015-12-22 | The sealing structure of three components cooperation |
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Citations (6)
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|---|---|---|---|---|
| JP2001280501A (en) * | 2000-03-31 | 2001-10-10 | Sanyo Denki Co Ltd | Sealing structure and dynamo-electric machine |
| DE102004022058A1 (en) * | 2004-05-05 | 2005-12-08 | Siemens Ag | Bearing cap or housing end cap for electrical machine has joggled flange with apertures for fastening bolts and may have groove or cutout to accommodate sealing ring |
| CN200990534Y (en) * | 2005-12-30 | 2007-12-12 | 比亚迪股份有限公司 | Electric machine casing cooling water path sealing structure |
| CN101951069A (en) * | 2010-09-09 | 2011-01-19 | 上海中科深江电动车辆有限公司 | Cooling water channel structure for motor casing |
| KR20140087358A (en) * | 2012-12-28 | 2014-07-09 | 주식회사 효성 | Frame apparatus for water cooled motor |
| CN204459147U (en) * | 2015-02-06 | 2015-07-08 | 池州腾虎机械科技有限公司 | A kind of Bolt Connection Bidirectional static seal structure |
-
2015
- 2015-12-22 CN CN201510971342.2A patent/CN106911211B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001280501A (en) * | 2000-03-31 | 2001-10-10 | Sanyo Denki Co Ltd | Sealing structure and dynamo-electric machine |
| DE102004022058A1 (en) * | 2004-05-05 | 2005-12-08 | Siemens Ag | Bearing cap or housing end cap for electrical machine has joggled flange with apertures for fastening bolts and may have groove or cutout to accommodate sealing ring |
| CN200990534Y (en) * | 2005-12-30 | 2007-12-12 | 比亚迪股份有限公司 | Electric machine casing cooling water path sealing structure |
| CN101951069A (en) * | 2010-09-09 | 2011-01-19 | 上海中科深江电动车辆有限公司 | Cooling water channel structure for motor casing |
| KR20140087358A (en) * | 2012-12-28 | 2014-07-09 | 주식회사 효성 | Frame apparatus for water cooled motor |
| CN204459147U (en) * | 2015-02-06 | 2015-07-08 | 池州腾虎机械科技有限公司 | A kind of Bolt Connection Bidirectional static seal structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106911211B (en) | 2019-06-21 |
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