CN206442210U - A kind of blocking type electric engine stator case based on mechanical model - Google Patents
A kind of blocking type electric engine stator case based on mechanical model Download PDFInfo
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- CN206442210U CN206442210U CN201621395361.1U CN201621395361U CN206442210U CN 206442210 U CN206442210 U CN 206442210U CN 201621395361 U CN201621395361 U CN 201621395361U CN 206442210 U CN206442210 U CN 206442210U
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Abstract
The utility model is related to a kind of blocking type electric engine stator case based on mechanical model, and hot cover process is solved compared with prior art and installs the defect that there is inconvenience to stator and housing.One end of left shell half is provided with bolt fixed seat B provided with bolt fixed seat A, the other end in the utility model, bolt fixed seat A and both bolt fixed seat B are corresponding in mirror image, one end of right half-shell is provided with bolt fixed seat D provided with bolt fixed seat C, the other end, bolt fixed seat C and both bolt fixed seat D are corresponding in mirror image, the outside for being clipped in stator is engaged with right half-shell for left shell half and left shell half and both right half-shells are corresponding in mirror image, left bolt is arranged on bolt fixed seat A and bolt fixed seat C, and right bolt is arranged on bolt fixed seat B and bolt fixed seat D.The utility model uses blocking type electric engine housing design, and installation is fixed to left shell half and right half-shell two parts by bolt, the assembly technology of motor stator casing is greatly simplified.
Description
Technical field
The utility model is related to motor stator casing technical field, specifically a kind of sectional type based on mechanical model
Motor stator casing.
Background technology
With developing rapidly for electric automobile industry, correlation technique is also constantly improving, and permagnetic synchronous motor is as electronic
Automobile inner core part, directly determines the performance of electric automobile.Current new-energy automobile field interior permanent-magnet synchronous motor stator with
Housing is mainly assembled by hot cover process, i.e., heat electric machine casing, expands case swells, internal diameter, then will be fixed
Son loads, and with environment temperature rapid drawdown, housing inner diameter size reduces rapidly, and two are ensured by the magnitude of interference between stator and housing
Relative displacement does not occur for person.
Following deficiency is primarily present using such a assembling mode：
1st, because the heat produced in the motor course of work is mainly directly passed to housing by stator core, by housing
Internal cooling medium or outside air are taken out of, it is desirable to which stator core contacts very good with shell inner surface, otherwise two parts it
Between fit-up gap can cause larger thermal contact resistance, heat is difficult to pass out, and winding temperature rise certainly will be caused very fast.This is to fixed
The control of sub- iron core surface roughness and the magnitude of interference requires higher, and difficulty of processing is larger；
2nd, using such a assembling mode when carrying out hot jacket, assembly technology is complex, and operation is inconvenient, to assembler
People's muscle power, technical requirements are higher, and the unsuccessful ratio of assembling is higher, and easily causes irrecoverability to damage housing and stator；
3rd, the motor assembled using hot cover process, can not be replaced when later stage housing or stator are damaged to one of
Change maintenance；
4th, quantified controlling, this link randomness can not be carried out to pretightning force between motor stator and housing using hot cover process
Larger, product uniformity in terms of temperature rise, performance is poor.
How to develop it is a kind of do not use the stator of hot cover process and the assembling mode of housing have become be badly in need of solve
Technical problem.
Utility model content
The purpose of this utility model be in order to solve hot cover process in the prior art stator and housing are installed exist it is many
The defect of inconvenience solves the above problems there is provided a kind of blocking type electric engine stator case based on mechanical model.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of blocking type electric engine stator case based on mechanical model, including stator and housing,
Described housing includes left shell half and right half-shell, and one end of left shell half is provided with spiral shell provided with bolt fixed seat A, the other end
Both bolt fixed seat B, bolt fixed seat A and bolt fixed seat B are corresponding in mirror image, one end of right half-shell be provided with bolt fixed seat C,
The other end is in that mirror image is corresponding provided with both bolt fixed seat D, bolt fixed seat C and bolt fixed seat D, left shell half and right half-shell phase
Coordinate the outside for being clipped in stator and left shell half and both right half-shells are corresponding in mirror image, left bolt is arranged on bolt fixed seat A and spiral shell
On bolt fixed seat C, right bolt is arranged on bolt fixed seat B and bolt fixed seat D.
Also include heat outlet washer, heat outlet washer is cylinder, and heat outlet washer is enclosed on stator, and described heat outlet washer is upper
The thickness in region is more than on heat outlet washer positioned between left shell half arc bottom and right half-shell arc bottom area between left bolt and right bolt
The thickness in domain.
Radiation water channel is provided with described left shell half, radiation water channel is located at the end of left shell half.
It is located on described heat outlet washer between left bolt and right bolt and is located at left shell half arc bottom on region and heat outlet washer
The thickness ratio in region is 1 between right half-shell arc bottom:4-1:8.
Described bolt fixed seat A, bolt fixed seat B, bolt fixed seat C, bolt fixed seat D, left bolt and right bolt
Quantity be 2.
Beneficial effect
A kind of blocking type electric engine stator case based on mechanical model of the present utility model, uses divide compared with prior art
Block formula electric machine casing is designed, and installation is fixed to left shell half and right half-shell two parts by bolt, motor is greatly simplified
The assembly technology of stator case.By arranging heat outlet washer between stator and housing, reduce due to assembly technology and add
Influence of the work precision to motor temperature rise, substantially increases the heat dispersion of motor.The utility model reduces assembling process to fixed
The spoilage of son and housing, while facilitating the later stage to carry out disassembling maintenance and part replacement to motor, improves the utilization rate of part.
Designed simultaneously by mechanical model, realize the quantization control to pretightning force between housing and stator according to motor maximum torque requirement
System, so that the stability in motor operation course and the uniformity of product are ensure that, and it is simple in construction, it is easy to accomplish.
Brief description of the drawings
Fig. 1 is structure top view of the present utility model；
Fig. 2 is Fig. 1 A-A profiles；
Fig. 3 is the structural representation of heat outlet washer in the utility model；
Fig. 4 is the stress diagram of stator in the utility model；
Fig. 5 is the method precedence diagram involved by the utility model；
Wherein, 1- housings, 2- radiation water channels, 3- heat outlet washers, 4- stators, the left bolts of 5-, the right bolts of 6-, 11- left shell halfs,
12- right half-shells, 13- bolt fixed seat A, 14- bolt fixed seat B, 15- bolt fixed seat C, 16- bolt fixed seats D.
Embodiment
To make to have a better understanding and awareness to architectural feature of the present utility model and the effect reached, to compared with
Good embodiment and accompanying drawing coordinate detailed description, are described as follows：
As shown in figure 1, a kind of blocking type electric engine stator case based on mechanical model described in the utility model, including it is fixed
Son 4 and housing 1.Housing 1 is block design, and unconventional overall structure, and it includes left shell half 11 and right half-shell 12.Such as Fig. 2
It is shown, one end of left shell half 11 provided with bolt fixed seat A13, the other end provided with bolt fixed seat B14, bolt fixed seat A13 with
Both bolt fixed seat B14 are structure as a whole in mirror image correspondence, bolt fixed seat A13, bolt fixed seat B14 and left shell half 11,
Installed for coordinating.Equally, one end of right half-shell 12 is provided with bolt fixed seat D16, spiral shell provided with bolt fixed seat C15, the other end
Both bolt fixed seat C15 and bolt fixed seat D16 are corresponding in mirror image, bolt fixed seat C15, bolt fixed seat D16 and right half-shell
12 can also be structure as a whole.Left shell half 11 is engaged the outside for being clipped in stator 4, left shell half 11 and right half-shell 12 with right half-shell 12
Both are folded with right half-shell 12 by left shell half 11 and stator 4 are fixed in mirror image correspondence, so as to avoid using traditional
Hot cover process.Left bolt 5 is arranged on bolt fixed seat A13 and bolt fixed seat C15, and right bolt 6 is arranged on bolt fixed seat
On B14 and bolt fixed seat D16, it is fixed to be removably mounted on left shell half 11 and right half-shell 12 by left bolt 5 and right bolt 6
The outside of son 4.
Housing 1 is not only installation effect to stator 4, and more crucial act as thermolysis.Hot jacket in conventional art
Technique so that the inner surface of housing 1 is fully contacted with stator 4 to be radiated.And installed by left bolt 5 and right bolt 6
Mode, existing can not ensure that the inner surface of housing 1 is fully contacted with stator 4, thus herein use heat outlet washer 3 design.Such as
Shown in Fig. 3, the radiating that heat outlet washer 3 is used for stator 4 is used, and heat outlet washer 3 is cylinder, and heat outlet washer 3 is enclosed on stator 4,
The heat transfer of stator 4 is gone out.Due to also needing to ensure certain pretightning force, left bolt 5 and right bolt 6 are after torsion is applied, shell
Body 1 can have a certain degree of deformation, i.e., oval, and diameter of the housing 1 at left bolt 5 and right bolt 6 exists more than housing 1
The diameter at the arc bottom of left shell half 11 and the arc bottom of right half-shell 12.It therefore, it can that left bolt 5 and right bolt 6 will be located on heat outlet washer 3
Between region thickness be more than heat outlet washer 3 on be located between the arc bottom of left shell half 11 and the arc bottom of right half-shell 12 region thickness, this
Sample applies torsion when left bolt 5 and right bolt 6, when housing 1 is deformed, heat outlet washer 3 can preferably docile in housing 1
Inner surface.
It is preferred that, it is located on heat outlet washer 3 between left bolt 5 and right bolt 6 and is located at left shell half 11 on region and heat outlet washer 3
The thickness ratio in region is 1 between arc bottom and the arc bottom of right half-shell 12:4-1:8.It is also possible to by existing radiation water channel in the art
2 are applied in left shell half 11 and right half-shell 12, and radiation water channel 2 also is provided with such as left shell half 11, and radiation water channel 2 is located at left shell half 11
End, pass through radiation water channel 2 further increase heat dispersion.Similarly, in order to ensure installation reliability, bolt fixed seat A13,
Bolt fixed seat B14, bolt fixed seat C15, bolt fixed seat D16, the quantity of left bolt 5 and right bolt 6 can be 2.
A kind of trim designs method for blocking type electric engine stator case is also provided herein, so that it is determined that single bolt institute
The torsion needed, as shown in figure 5, a kind of trim designs method of the blocking type electric engine stator case based on mechanical model, including with
Lower step：
The first step, calculates the pressure that the pretightning force under reaction torque effect is produced.
For the maximum output torque of design of electrical motor, calculate pretightning force of the stator 4 with housing 1 under reaction torque effect and produced
Raw pressure p,
Its calculation formula is as follows：
Wherein：T is motor maximum output torque；U is the confficient of static friction between stator and housing；L is that stator connects with housing
The length of contact portion point vertically；R is stator exradius.
Second step, calculates stator 4 and left shell half 11 or the gross pressure F of the contact surface of right half-shell 12.Because housing 1 divide into a left side
Half-shell 11 and right half-shell 12, single calculating is carried out in this need for left shell half 11 or right half-shell 12, if both are combined one
Rise and calculated as the entirety of housing 1, it can not obtain the power that left shell half 11 or right half-shell 12 are born as single object of crime.
Its calculation formula is as follows：
It is wherein S stators 4 and the contact surface area of housing 1.
3rd step, calculates the power F' on the circumferencial direction single line of housing 1.Its calculation formula is as follows：
Wherein, F is stator 4 and left shell half 11 or the gross pressure of the contact surface of right half-shell 12, and R is stator exradius.
4th step, the calculating made a concerted effort.
Power F' on the circumferencial direction of housing 1 is decomposed into the Q that makes a concerted effort of its vertical direction, Q is total pretension of all bolts
Power, its calculation formula is as follows：
Wherein, θ is the power F' and the folder of left shell half 11 or the Inner arc top normal direction of right half-shell 12 on the circumferencial direction of housing 1
Angle, d θ are integration.As shown in figure 4, θ is on the circumferencial direction of housing 1 of diverse location in left shell half 11 or right half-shell 12
Suffered power F', the angle of the Inner arc top normal direction of housing 1 constituted with left shell half 11 and right half-shell 12, it exists many
It is individual, therefore concluded using integral operation, draw Q with joint efforts, total pretightning force of as all bolts.
5th step, single bolt pretightening is calculated according to bolt number.
When the quantity of left bolt 5 and right bolt 6 is 2, i.e., the design of a total of 4 bolts when, single bolt it is pre-
Clamp force is Q/4.Can be 6 or 8 bolt designs in practical application, then the pretightning force of single bolt is Q/6 or Q/8.
6th step, calculates the torsion N needed for single bolt, and its calculation formula is as follows：
Then：
Wherein,For the lead angle of bolt, d2For the pitch diameter of thread of bolt, ω is screw pair equivalent friction angle, d0For spiral shell
Bolt diameter, D0For the annular support surface external diameter of bolt, fcFor coefficient of friction between bolt and supporting surface.
Finally draw, if the maximum output torque T of design of electrical motor need to be met, the 4 of blocking type electric engine stator case structure
On individual bolt, the torsion that each bolt applies is no less than torsion N, when the bolt for carrying out left shell half 11 and right half-shell 12 is installed,
Staff is applied according to torque spanner.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the utility model spirit and scope are not departed from
Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement
Protection domain defined by appended claims and its equivalent.
Claims (5)
1. a kind of blocking type electric engine stator case based on mechanical model, including stator（4）And housing（1）, it is characterised in that：
Described housing（1）Including left shell half（11）And right half-shell（12）, left shell half（11）One end be provided with bolt fixed seat A
（13）, the other end be provided with bolt fixed seat B（14）, bolt fixed seat A（13）With bolt fixed seat B（14）Both are in mirror image pair
Should, right half-shell（12）One end be provided with bolt fixed seat C（15）, the other end be provided with bolt fixed seat D（16）, bolt fixed seat C
（15）With bolt fixed seat D（16）Both are in mirror image correspondence, left shell half（11）With right half-shell（12）It is engaged and is clipped in stator（4）'s
Outside and left shell half（11）With right half-shell（12）Both are in mirror image correspondence, left bolt（5）Installed in bolt fixed seat A（13）With spiral shell
Bolt fixed seat C（15）On, right bolt（6）Installed in bolt fixed seat B（14）With bolt fixed seat D（16）On.
2. a kind of blocking type electric engine stator case based on mechanical model according to claim 1, it is characterised in that：Also wrap
Include heat outlet washer（3）, heat outlet washer（3）For cylinder, heat outlet washer（3）It is enclosed on stator（4）On, described heat outlet washer（3）
It is upper to be located at left bolt（5）With right bolt（6）Between region thickness be more than heat outlet washer（3）It is upper to be located at left shell half（11）Arc bottom with
Right half-shell（12）The thickness in region between arc bottom.
3. a kind of blocking type electric engine stator case based on mechanical model according to claim 1, it is characterised in that：It is described
Left shell half（11）It is interior to be provided with radiation water channel（2）, radiation water channel（2）Positioned at left shell half（11）End.
4. a kind of blocking type electric engine stator case based on mechanical model according to claim 2, it is characterised in that：It is described
Heat outlet washer（3）It is upper to be located at left bolt（5）With right bolt（6）Between region and heat outlet washer（3）It is upper to be located at left shell half（11）
Arc bottom and right half-shell（12）The thickness ratio in region is 1 between arc bottom:4-1:8.
5. a kind of blocking type electric engine stator case based on mechanical model according to claim 2, it is characterised in that：It is described
Bolt fixed seat A（13）, bolt fixed seat B（14）, bolt fixed seat C（15）, bolt fixed seat D（16）, left bolt（5）With
Right bolt（6）Quantity be 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395361.1U CN206442210U (en) | 2016-12-19 | 2016-12-19 | A kind of blocking type electric engine stator case based on mechanical model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621395361.1U CN206442210U (en) | 2016-12-19 | 2016-12-19 | A kind of blocking type electric engine stator case based on mechanical model |
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| Publication Number | Publication Date |
|---|---|
| CN206442210U true CN206442210U (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621395361.1U Active CN206442210U (en) | 2016-12-19 | 2016-12-19 | A kind of blocking type electric engine stator case based on mechanical model |
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| CN (1) | CN206442210U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655585A (en) * | 2016-12-19 | 2017-05-10 | 合肥巨动力系统有限公司 | Segment type motor stator housing based on mechanical model and assembling design method thereof |
| CN110545015A (en) * | 2019-09-19 | 2019-12-06 | 河南师范大学 | Portable assembly auxiliary tool for casing and stator of servo motor |
-
2016
- 2016-12-19 CN CN201621395361.1U patent/CN206442210U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655585A (en) * | 2016-12-19 | 2017-05-10 | 合肥巨动力系统有限公司 | Segment type motor stator housing based on mechanical model and assembling design method thereof |
| CN106655585B (en) * | 2016-12-19 | 2024-03-15 | 合肥巨一动力系统有限公司 | Segmented motor stator shell based on mechanical model and assembly design method thereof |
| CN110545015A (en) * | 2019-09-19 | 2019-12-06 | 河南师范大学 | Portable assembly auxiliary tool for casing and stator of servo motor |
| CN110545015B (en) * | 2019-09-19 | 2021-02-09 | 河南师范大学 | Portable assembly auxiliary tool for casing and stator of servo motor |
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