CN112242770B - Motor casing, motor and have its vehicle - Google Patents
Motor casing, motor and have its vehicle Download PDFInfo
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- CN112242770B CN112242770B CN201910641909.8A CN201910641909A CN112242770B CN 112242770 B CN112242770 B CN 112242770B CN 201910641909 A CN201910641909 A CN 201910641909A CN 112242770 B CN112242770 B CN 112242770B
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- reinforcing
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- bearing chamber
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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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor housing, a motor and a vehicle with the motor, wherein the motor housing comprises: the shell comprises a shell body and an end cover, wherein the end cover is connected with the shell body; the shell body is provided with a first bearing chamber, the end cover is provided with a second bearing chamber, the circumferential edge of the first bearing chamber and/or the circumferential edge of the second bearing chamber are/is provided with a plurality of reinforcing parts, and the plurality of reinforcing parts limit a plurality of silencing spaces. Thus, on the one hand, by providing a plurality of reinforcements on the circumferential rim of the first bearing chamber and/or the circumferential rim of the second bearing chamber, the plurality of reinforcements significantly increase the structural strength of the housing body and/or the end cap, and thus of the motor housing; on the other hand, a plurality of silencing spaces are defined by the plurality of reinforcing parts so as to reduce the working noise of the motor.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a motor shell, a motor and a vehicle with the motor shell.
Background
In the related art, a motor is used as a power source of a hybrid vehicle or an electric vehicle, and mainly functions to convert electric energy into mechanical energy, and the motor performs reciprocating linear motion or rotation under the action of current to provide driving torque for the vehicle so as to drive the vehicle to move. However, in the existing motor technology, the structural strength of the motor housing is insufficient, and it is difficult to bear the large driving force generated by the motor, and meanwhile, when the motor works, the motor generates a large amount of noise, thereby causing serious noise pollution.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a motor housing which has a higher structural strength and a noise reduction effect.
The invention further provides a motor with the motor shell.
The invention also provides a vehicle which is provided with the motor.
A motor housing according to an embodiment of the first aspect of the invention includes: the shell comprises a shell body and an end cover, wherein the end cover is connected with the shell body; the shell body is provided with a first bearing chamber, the end cover is provided with a second bearing chamber, the circumferential edge of the first bearing chamber and/or the circumferential edge of the second bearing chamber are/is provided with a plurality of reinforcing parts, and the plurality of reinforcing parts limit a plurality of silencing spaces.
According to the motor shell disclosed by the embodiment of the invention, on one hand, the plurality of reinforcing parts are arranged on the circumferential edge of the first bearing chamber and/or the circumferential edge of the second bearing chamber, so that the plurality of reinforcing parts can obviously increase the structural strength of the shell body and/or the end cover, and thus the structural strength of the motor shell is obviously increased; on the other hand, a plurality of silencing spaces are defined by the plurality of reinforcing parts so as to reduce the working noise of the motor.
According to some embodiments of the invention, the reinforcement comprises: a first reinforcing part defining a plurality of sound deadening spaces independent of each other.
In some embodiments, the first reinforcing part is plural and each of the first reinforcing parts includes: the plurality of strengthening ribs that connect gradually, it is a plurality of the strengthening rib is injectd the amortization space.
Further, each of the first reinforcing portions is defined by an even number of the reinforcing beads.
In some embodiments, the reinforcement further comprises: a second reinforcement portion defining a plurality of sound deadening spaces communicating with each other.
Further, the second reinforcement portion includes: the sound attenuation device comprises a plurality of sub-reinforcing parts for limiting sound attenuation spaces and sound guide ribs for communicating two adjacent sound attenuation spaces.
Further, the sound guiding rib is of a hollow structure, and two ends of the sound guiding rib are respectively communicated with two adjacent silencing spaces.
In some embodiments, the first reinforcement portion or the second reinforcement portion is disposed on the case body, and the first reinforcement portion or the second reinforcement portion is disposed on the end cap.
An electric machine according to an embodiment of the second aspect of the invention comprises: such as the motor housing described in the embodiments above.
A vehicle according to an embodiment of a third aspect of the invention includes: a motor as described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
figure 1 is a front view of a housing body of a motor housing according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
figure 3 is a front view of an end cap of a motor housing according to an embodiment of the present invention;
fig. 4 is a sectional view taken along line B-B of fig. 3.
Reference numerals:
a housing body 10, a first bearing chamber 11,
the dimensions of the end cap 20, the second bearing chamber 21,
a first reinforcing part 31, a reinforcing rib 311, a second reinforcing part 32, a sub-reinforcing part 321, a sound-guiding rib 322,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A motor housing according to an embodiment of the present invention is described below with reference to fig. 1-4.
As shown in fig. 1 and 3, a motor case according to an embodiment of the first aspect of the invention includes: the shell comprises a shell body 10 and an end cover 20, wherein the end cover 20 is connected with the shell body 10; wherein, be formed with first bearing chamber 11 on the shell body 10, be formed with second bearing chamber 21 on the end cover 20, be provided with a plurality of reinforcements on the first bearing chamber 11 circumference border and/or the circumference border of second bearing chamber 21, a plurality of reinforcements limit a plurality of amortization spaces 40.
Specifically, a first bearing chamber 11 is formed at the center of the housing body 10, a second bearing chamber 21 is formed at the center of the end cover 20, the geometric profiles of the first bearing chamber 11 and the second bearing chamber 21 are both configured to be substantially circular, the end cover 20 is connected with the housing body 10, and a reinforcing part is provided on the circumferential edge of the first bearing chamber 11, so that the first bearing chamber 11 and the circumferential edge of the housing body 10 are structurally reinforced by the reinforcing part; set up the rib simultaneously on the circumference border of second bearing chamber 21 to carry out the structure through the rib and strengthen between the circumference border of second bearing chamber 21 and end cover 20, and a plurality of silenced space 40 are injectd to a plurality of ribs, in order when the motor is worked, reduce the operating noise of motor through a plurality of silenced space 40.
It should be noted that, in some embodiments, the first bearing chamber 11 is provided with a plurality of reinforcements on the circumferential edge; in other embodiments, the circumferential rim of the second bearing chamber 21 is provided with a plurality of reinforcements; in still other embodiments, a plurality of reinforcements are provided on both the circumferential rim of the first bearing chamber 11 and the circumferential rim of the second bearing chamber 21.
Preferably, a plurality of reinforcing portions are provided on both the circumferential rim of the first bearing chamber 11 and the circumferential rim of the second bearing chamber 21.
According to the motor housing of the embodiment of the invention, on one hand, the plurality of reinforcing parts are arranged on the circumferential edge of the first bearing chamber 11 and/or the circumferential edge of the second bearing chamber 21, so that the plurality of reinforcing parts can obviously increase the structural strength of the housing body 10 and/or the end cover 20, and thus the structural strength of the motor housing is obviously increased; on the other hand, a plurality of sound deadening spaces 40 are defined by the plurality of reinforcing parts to reduce the operating noise of the motor.
As shown in fig. 1 and 2, according to some embodiments of the present invention, the reinforcement portion includes: a first reinforcing part 31, the first reinforcing part 31 defining a plurality of sound deadening spaces 40 independent of each other.
Specifically, the plurality of reinforcing parts define a plurality of sound deadening spaces 40, the plurality of first reinforcing parts 31 are disposed around the case body 10 or around the end cover 20, and the first reinforcing parts 31 define a plurality of sound deadening spaces 40 independent of each other, so that the plurality of sound deadening spaces 40 independent of each other reduce the operating noise of the motor without interfering with each other.
Thus, on the one hand, the first reinforcement 31 improves the structural strength of the housing body 10 and/or the end cap 20, thereby improving the structural strength of the motor housing; on the other hand, the first reinforcing part 31 defines a plurality of silencing spaces 40 independent from each other, and the plurality of silencing spaces 40 independent from each other reduce noise during operation of the motor without interfering with each other, so as to effectively reduce operating noise of the motor.
As shown in fig. 1, in some embodiments, the first reinforcing part 31 is plural and each first reinforcing part 31 includes: a plurality of reinforcing ribs 311 connected in series, the plurality of reinforcing ribs 311 defining the sound deadening space 40.
Specifically, the plurality of reinforcing parts define a plurality of sound deadening spaces 40, the reinforcing parts provided on the housing body 10 and on the end cap 20 are configured as the first reinforcing part 31, and further, the plurality of reinforcing ribs 311 are connected end to define the first reinforcing part 31, and the first reinforcing part 31 is formed as the closed sound deadening space 40, so that the plurality of reinforcing ribs 311 connected in sequence reinforce the structural strength of the motor housing.
In this way, the plurality of ribs 311 connected in sequence in the first reinforcing part 31 increases the distribution density of the ribs 311 between the circumferential edge of the end cap 20 and the second bearing chamber 21 or between the circumferential edge of the housing body 10 and the first bearing chamber 11, thereby improving the structural strength of the motor housing.
As shown in fig. 1 and 3, further, each of the first reinforcing parts 31 is defined by a plurality of reinforcing beads 311.
Specifically, the plurality of reinforcing ribs 311 are connected in sequence to define the first reinforcing part 31, so that the wall surface defining the sound deadening space 40 of each of the reinforcing ribs 311 is formed as a reflecting surface, and the noise sound wave entering into the first reinforcing part 31 can be reflected a plurality of times on the plurality of reflecting surfaces (corresponding to the number of the reinforcing ribs 311).
In one embodiment, each of the first reinforcing parts 31 is defined by an even number of reinforcing ribs 311, and specifically, the even number of reinforcing ribs 311 are sequentially connected to define the first reinforcing part 31, so that the wall surface of each of the reinforcing ribs 311 defining the sound deadening space 40 is formed as a reflecting surface, thereby allowing the noise sound wave entering into the first reinforcing part 31 to be reflected a plurality of times on the even number of reflecting surfaces (corresponding to the number of the reinforcing ribs 311).
Thus, when the motor is operated, the motor is operated to generate a noise sound wave, the noise sound wave is reflected a plurality of times in the sound deadening space 40 defined by the plurality of ribs 311 connected in series, and the noise sound wave is reflected an odd number of times by the reflection surface of the sound deadening space 40 defined by the ribs 311 (the wall surface of the plurality of ribs 311 facing the sound deadening space 40).
For example: the noise sound wave transmitted into the silencing space 40 at the time point t1 is reflected back to the incident surface at the time point t2, the noise sound wave entering into the silencing space 40 from the incident surface at the time point t2 and the noise sound wave reflected back to the incident surface generate a superposition effect, and further the energy between two noise sound waves with the phase difference of 180 degrees which is odd times is reduced, so that the noise reduction effect is achieved.
It can be understood that, by making the noise sound wave perform odd number of reflections in the sound deadening space 40, the noise sound wave entering at the time point t1 differs from the noise sound wave entering at the time point t2 in phase by an odd number times of 180 degrees, so as to play a role of reducing the noise sound wave under the effect of superposition of the noise sound wave.
The incident surface is a first surface through which the noise sound waves enter sound deadening space 40.
As shown in fig. 3 and 4, in some embodiments, the reinforcement further comprises: a second reinforcing part 32, the second reinforcing part 32 defining a plurality of sound deadening spaces 40 communicating with each other.
Specifically, the second reinforcement portion 32 may be provided on the end cap 20 or on the case body 10 selectively.
Further, in the embodiment in which the second reinforcing portion 32 is provided on the housing body 10, the second reinforcing portion 32 surrounds the first bearing chamber 11 of the housing body 10 to improve the structural strength of the housing body 10; in embodiments where the second reinforcement 32 is provided on the end cap 20, the second reinforcement 32 surrounds the second bearing chamber 21 of the end cap 20 to improve the structural strength of the end cap 20.
Further, the second reinforcing part 32 is configured as a plurality of sound deadening spaces 40 communicating with each other so that the noise sound wave generated from the motor can be reflected and transmitted multiple times between the plurality of sound deadening spaces 40 communicating with each other.
Thus, on the one hand, the second reinforcement 32 increases the structural strength of the motor housing, thereby increasing the load-bearing capacity of the motor housing; on the other hand, the plurality of silencing spaces 40, which are communicated with each other, continuously consume the energy of the noise sound wave in the process of continuously transmitting the noise sound wave, thereby achieving the effect of eliminating the noise sound wave.
As shown in fig. 3, the second reinforcement portion 32 includes: a plurality of sub-reinforcing parts 321 defining sound deadening spaces 40, and a sound leading rib 322 communicating adjacent two sound deadening spaces 40.
Specifically, the plurality of sub-reinforcing parts 321 in the second reinforcing part 32 define the sound deadening spaces 40, the sound guiding rib 322 in the second reinforcing part 32 communicates the adjacent two sound deadening spaces 40, and the sound guiding rib 322 forms a passage through which the adjacent sound deadening spaces 40 transmit noise so that the plurality of sound deadening spaces 40 communicate with each other.
It should be noted that, in the present embodiment, the sub-reinforcing part 321 defining the sound deadening space 40 is configured as a regular polygon (for example, a regular hexagon), and the sub-reinforcing part 321 of the regular polygon performs preliminary noise reduction, so that the noise sound wave entering into the sub-reinforcing part 321 can enter into the adjacent sub-reinforcing part 321 through the sound guiding rib 322.
Further, the cross-sectional area of the sub reinforcement part 321 is much larger than that of the sound guide rib 322 to define a "diverging muffler" by the plurality of sub reinforcement parts 321 and the sound guide rib 322, thereby effectively reducing the operating noise of the motor through the diverging muffler.
It can be appreciated that the noise reduction of the expanding muffler satisfies the following equation: TL 10lg (1/T)w)＝10lg{1+1/4(λ-1/λ)2(sinkL)2}；
Wherein: λ is expansion ratio, and λ ═ S2/S1，S1And S2The areas of the sound guiding rib 322 and the sound deadening space 40 are hollow structures, k is wave number, and k is ω/cAnd L is the length of sound deadening space 40 (i.e., the circumference of the regular polygon).
That is, the expansion ratio of the expansion muffler and the length of the sound deadening space 40 affect the noise reduction frequency range and the transmission loss value.
Like this, amortization space 40 is injectd to a plurality of sub-reinforcing parts 321 to promote the structural strength in amortization space 40, thereby promote the bearing effect in amortization space 40, simultaneously, communicate with leading sound rib 322 between a amortization space 40 and an adjacent amortization space 40, so that it is fixed to make leading sound rib 322 strengthen the connection of two adjacent amortization spaces 40, thereby has promoted the effect that reduces motor noise.
Further, as shown in fig. 3, the sound guide rib 322 is configured as a hollow structure, and both ends of the sound guide rib 322 are respectively communicated with the adjacent two sound deadening spaces 40.
Specifically, the sound guiding rib 322 in the second reinforcing part 32 is configured in a hollow structure such that the sound guiding rib 322 is a transmission passage of the noise sound wave, and both ends of the sound guiding rib 322 are respectively communicated with the adjacent two sound deadening spaces 40 such that the adjacent two sound deadening spaces 40 can transmit the noise sound wave.
In this embodiment, the sub-reinforcing portions 321 of the second reinforcing portion 32 define the geometric outline of the sound-deadening space 40, which is substantially configured as a honeycomb, and a hollow sound-guiding rib 322 is connected between the honeycomb-shaped sound-deadening space 40 and the adjacent honeycomb-shaped sound-deadening space 40, and the honeycomb-shaped sound-deadening spaces 40 are connected in pairs to form a closed sound-deadening circular pipe loop.
Thus, on one hand, the sound guiding ribs 322 improve the structural strength of the motor shell, thereby improving the bearing effect of the motor shell; on the other hand, one end of the sound guiding rib 322 with a hollow structure is connected with one sound deadening space 40, and the other end is connected with the adjacent sound deadening space 40, so that the two adjacent sound deadening spaces 40 are communicated with each other, when the motor works, the noise sound wave firstly enters the closed honeycomb sound deadening space 40, then enters the sound guiding rib 322 with the hollow structure, and then enters the adjacent closed honeycomb sound deadening space 40, because the cross section area of the noise sound wave on the transmission path changes suddenly in the transmission process, the expanding noise reduction is realized, the energy of the noise sound wave is reduced, and the effect of reducing the noise sound wave is further realized.
In some embodiments, the case body 10 is provided with the first reinforcement portion 31 or the second reinforcement portion 32, and the end cap 20 is provided with the first reinforcement portion 31 or the second reinforcement portion 32.
Specifically, the first bearing chamber 11 is surrounded by a plurality of first reinforcing portions 31 or a plurality of second reinforcing portions 32 to improve the structural strength of the housing body 10; the second bearing chamber 21 is surrounded by a plurality of first reinforcements 31 or a plurality of second reinforcements 32 to improve the structural strength of the end cap 20.
It should be noted that, in some embodiments, the first reinforcing portion 31 is disposed on both the case body 10 and the end cap 20; in other embodiments, the second reinforcement portion 32 is provided on both the case body 10 and the end cap 20; in still other embodiments, the case body 10 is provided with a first reinforcing portion 31, and the end cap 20 is provided with a second reinforcing portion 32; in still other embodiments, the case body 10 is provided with the second reinforcement portion 32, and the end cap 20 is provided with the first reinforcement portion 31.
Preferably, the case body 10 is provided with a first reinforcing portion 31, and the end cap 20 is provided with a second reinforcing portion 32.
Like this, all set up the rib on end cover 20 and shell body 10 to the structural strength of end cover 20 and shell body 10 has been improved, thereby has improved motor casing's structural strength, and then has promoted motor casing's bearing effect, and reduce the noise at work of motor effectively.
An electric machine according to an embodiment of the second aspect of the invention comprises: such as the motor housing of the previous embodiment.
Specifically, on the one hand, when the motor is operated, the noise sound wave transmitted into the silencing space 40 at the time point t1 is reflected back to the incident surface at the time point t2, the noise sound wave entering from the incident surface into the silencing space 40 at the time point t2 and the noise sound wave reflected back to the incident surface generate a superposition effect, so that the noise sound wave is reflected for an odd number of times in the silencing space 40, and the phase difference between the noise sound wave entering at the time point t1 and the noise sound wave entering at the time point t2 is an odd number multiple of 180 degrees, so that the noise sound wave is reduced under the action of the superposition effect of the noise sound wave;
on the other hand, when the motor works, the noise sound wave firstly enters the closed honeycomb-shaped silencing space 40, then enters the sound guide rib 322 with the hollow structure, and then enters the adjacent closed honeycomb-shaped silencing space 40, because the cross section area of the noise sound wave on the propagation path changes suddenly in the propagation process, the energy of the noise sound wave is reduced through the reflection effect of the noise sound wave, and the effect of reducing the noise sound wave is further achieved.
According to the motor of the embodiment of the invention, on one hand, the end cover 20 and the shell body 10 are provided with the plurality of reinforcing parts to improve the structural strength of the motor shell, so that the bearing effect of the motor shell is improved; on the other hand, a plurality of silencing spaces 40 are provided on the end cover 20 and the housing body 10 to reduce the noise of the motor, thereby reducing noise pollution.
A vehicle according to an embodiment of a third aspect of the invention includes: such as the motor in the above-described embodiment.
Specifically, a plurality of first reinforcing parts 31 and second reinforcing parts 32 are arranged on the motor housing, the reinforcing ribs 311 in the first reinforcing parts 31 define a plurality of sound deadening spaces 40 which are closed independently of each other, and the second reinforcing parts 32 define a plurality of honeycomb sound deadening spaces 40 which are communicated with each other, wherein the sound guiding ribs 322 of the hollow structure in the first reinforcing parts 31 connect two adjacent honeycomb sound deadening spaces 40.
According to the vehicle provided by the embodiment of the invention, by adopting the motor in the embodiment, the noise in the use process of the vehicle can be reduced, the structural strength of the motor is higher, the service life of the motor is prolonged, the maintenance cost of the vehicle is further reduced, and the service life of the vehicle is prolonged.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (7)
1. An electric machine housing, comprising:
a case body (10); and
an end cap (20), the end cap (20) being connected with the case body (10); wherein
A first bearing chamber (11) is formed on the shell body (10), a second bearing chamber (21) is formed on the end cover (20), and a plurality of reinforcing parts are arranged on the circumferential edge of the first bearing chamber (11) and/or the circumferential edge of the second bearing chamber (21) and define a plurality of silencing spaces (40);
the reinforcing part includes: a first reinforcing portion (31), the first reinforcing portion (31) defining a plurality of sound deadening spaces (40) independent of each other; a second reinforcing portion (32), the second reinforcing portion (32) defining a plurality of sound deadening spaces (40) communicating with each other;
the second reinforcement (32) includes: a plurality of sub-reinforcing parts (321) defining sound deadening spaces (40), and a sound guide rib (322) communicating adjacent sound deadening spaces (40).
2. The electric machine housing according to claim 1, wherein the first reinforcing portion (31) is plural and each of the first reinforcing portions (31) includes: a plurality of reinforcing ribs (311) connected in series, the plurality of reinforcing ribs (311) defining the sound deadening space (40).
3. The electric machine housing according to claim 2, wherein each of the first reinforcing portions (31) is defined by an even number of the reinforcing ribs (311).
4. The motor housing according to claim 1, wherein the sound guide rib (322) is configured as a hollow structure, and both ends of the sound guide rib (322) communicate with two adjacent sound deadening spaces (40), respectively.
5. The electric motor housing according to claim 1, wherein the housing body (10) is provided with the first reinforcement portion (31) or the second reinforcement portion (32), and the end cap (20) is provided with the first reinforcement portion (31) or the second reinforcement portion (32).
6. An electric machine, comprising: the motor housing of any one of claims 1-5.
7. A vehicle, characterized by comprising: the electric machine of claim 6.
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| CN201910641909.8A CN112242770B (en) | 2019-07-16 | 2019-07-16 | Motor casing, motor and have its vehicle |
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| CN201910641909.8A CN112242770B (en) | 2019-07-16 | 2019-07-16 | Motor casing, motor and have its vehicle |
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| CN112242770B true CN112242770B (en) | 2022-03-18 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207819647U (en) * | 2018-01-10 | 2018-09-04 | 东方电气集团东方电机有限公司 | A kind of noise-dampened motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11234957A (en) * | 1998-02-17 | 1999-08-27 | Toshiba Corp | Noise suppressor for dynamo-electric machine |
| CN201581577U (en) * | 2009-12-17 | 2010-09-15 | 侯圣春 | Silencing internal decorative plate |
| CN101777812A (en) * | 2010-01-28 | 2010-07-14 | 卢连苗 | Diaphragm pump motor provided with sealed rear end cover structure |
| CN205265430U (en) * | 2015-11-26 | 2016-05-25 | 珠海格力电器股份有限公司 | Motor noise reduction device and air conditioner |
| JP2019030182A (en) * | 2017-08-02 | 2019-02-21 | 株式会社ケーヒン | Brushless motor for air conditioning apparatus |
| CN207926321U (en) * | 2018-04-09 | 2018-09-28 | 即墨市振华电机厂 | A kind of inorganic shell-type outer rotor three-phase asynchronous motor structure of treadmill |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207819647U (en) * | 2018-01-10 | 2018-09-04 | 东方电气集团东方电机有限公司 | A kind of noise-dampened motor |
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