CN117411233B - Motor group - Google Patents
Motor group Download PDFInfo
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- CN117411233B CN117411233B CN202311708389.0A CN202311708389A CN117411233B CN 117411233 B CN117411233 B CN 117411233B CN 202311708389 A CN202311708389 A CN 202311708389A CN 117411233 B CN117411233 B CN 117411233B
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- Prior art keywords
- motor
- shell
- air
- heat dissipation
- air inlet
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 97
- 230000001681 protective effect Effects 0.000 claims description 32
- 238000005192 partition Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 description 16
- 238000007599 discharging Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Abstract
The invention provides a motor group, which comprises a shell, an upper motor and a lower motor, wherein the upper motor and the lower motor are arranged in the shell, the upper motor and the lower motor are arranged in a clearance way with the shell, air inlets are formed at the top and the bottom of the shell, and an air outlet is formed at the waist of the shell so as to form a heat dissipation air channel between the outer walls of the upper motor and the lower motor and the shell; two first centrifugal fans are arranged in the heat dissipation air duct, are respectively and fixedly connected with the rotors of the upper motor and the lower motor in a coaxial manner, and are respectively arranged at the two air inlets. According to the motor set provided by the invention, the shell is arranged outside the motor, the heat dissipation air channel with the closed plate is formed, the heat dissipation air flow can be effectively limited in a certain area close to the surface of the motor, the dissipation of the heat dissipation air flow is effectively reduced, the heat dissipation effect is improved, the heat dissipation air flows of the upper motor and the lower motor are led out from the waist position of the motor set, the interference of two heat dissipation air flows on the heat dissipation of the other motor is avoided, and the heat dissipation effect of each motor is ensured.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor group.
Background
In motor operation, its winding generates heat under the action of operating current, and the iron core receives the magnetic flux change influence and generates heat, and high temperature can influence the electromagnetic properties of motor and insulating material's insulating properties, influences the normal work of motor, therefore, the motor generally has certain heat dissipation design.
In the prior art, the heat dissipation structure of the motor generally comprises natural cooling, fan cooling, water cooling, oil cooling and the like, wherein the fan cooling has low cost and considerable effect, is most widely used, and is used for realizing heat dissipation by blowing the surface of the motor through the fan, wherein a motor group which is operated by combining a plurality of motors is provided with a plurality of heat sources, the heat dissipation air blown by the fan is unidirectional air, the heat emitted by the motor at the upstream of the air direction can be brought to a motor at the downstream, the heat dissipation of the motor at the downstream is easy to be influenced, the actual heat dissipation effect is poor, the problem of outward dissipation exists in the air outlet of the fan, the phenomenon of wind attenuation on the surface of the motor is obvious, and the actual heat dissipation efficiency and the energy utilization rate are lower.
Disclosure of Invention
Based on the above, the invention aims to provide a motor set to solve the problems of poor heat dissipation effect and low energy utilization rate of the motor set, so as to improve the heat dissipation effect of the motor set and the working efficiency of the motor set.
The present invention provides an electric motor set comprising: the shell, an upper motor and a lower motor which are arranged in the shell, wherein,
the upper motor, the lower motor and the shell are arranged in a clearance way, through holes are formed in the top and the bottom of the shell to form an air inlet, and an opening is formed in the waist of the shell to form an air outlet so as to form a heat dissipation air channel between the outer walls of the upper motor and the lower motor and the shell;
two first centrifugal fans are arranged in the heat dissipation air duct, are respectively and fixedly connected with the rotors of the upper motor and the lower motor in a coaxial manner, and are respectively arranged at the two air inlets;
the waist of the shell is also extended with a first protective shell, the first protective shell is provided with an air outlet channel, and the air outlet channel is communicated with the air outlet and extends downwards along the side wall of the shell so as to lead out the air outlet downwards;
the bottom of shell still is provided with the third protective housing, the third protective housing is formed with the second air inlet wind channel, second air inlet wind channel intercommunication the air intake of shell bottom, and extend to the lateral wall position of shell, the export in air-out wind channel with the import in second air inlet wind channel is all followed the circumference extension of shell, and set up the position and stagger each other.
Optionally, a sundry outlet is arranged at the bottom of the third protective shell, and the arrangement position of the sundry outlet is vertically aligned and matched with the air inlet position of the second air inlet duct.
Optionally, the sundry discharge port extends downwards from the third protective shell, and the caliber is gradually reduced outwards.
Optionally, the top of shell still is provided with the second protecting crust, the second protecting crust covers the air intake setting at shell top, and be formed with the intercommunication the first air inlet duct of air intake at shell top, the edge slant downwardly extending of second protecting crust, the top outward flange of shell is chamfer structure, in order to form slant downwardly air inlet between the top of shell with the second protecting crust.
Optionally, a second centrifugal fan is further arranged between the upper motor and the lower motor, and the heat dissipation airflow in the heat dissipation air duct flows to the air outlet to be discharged through the second centrifugal fan.
Optionally, the second centrifugal fan comprises a partition plate, the upper surface and the lower surface of the partition plate are provided with centrifugal fan blades, wherein,
the arrangement position of the partition plate corresponds to the waist position of the air outlet, so that the space above the partition plate and the space below the partition plate are communicated to the air outlet;
the proportion of the size of the air channel from the space above the partition plate to the air outlet is consistent with the proportion of the rotating speeds of the upper motor and the lower motor.
Optionally, the second centrifugal fan is a Qu Shexing centrifugal fan, and the first centrifugal fan is a straight blade type centrifugal fan.
Optionally, the upper motor and the lower motor are both inner rotor motors, and cooling fins extend out of the outer wall of the stator of the inner rotor motor.
The motor group provided by the invention comprises: the device comprises a shell, an upper motor and a lower motor, wherein the upper motor and the lower motor are arranged in the shell in a clearance manner, air inlets are formed in the top and the bottom of the shell, and an air outlet is formed in the waist of the shell so as to form a heat dissipation air channel between the outer walls of the upper motor and the lower motor and the shell; the heat dissipation air duct is internally provided with two first centrifugal fans which are respectively and fixedly connected with the rotors of the upper motor and the lower motor in a coaxial manner and are respectively arranged at two air inlets, when the upper motor and the lower motor work, the first centrifugal fans synchronously rotate to suck external air from the air inlets, heat dissipation air flow is formed in the heat dissipation air duct and is converged at the waist of the motor group and discharged from the air outlets, and then heat generated by the motor work is taken out. The motor set provided by the invention is provided with the shell outside the motor, and the heat dissipation air duct with the closed plate is formed, so that heat dissipation air flow can be effectively limited in a certain area close to the surface of the motor, the dissipation of the heat dissipation air flow is effectively reduced, the heat dissipation effect is improved, the heat dissipation air flow of the upper motor and the lower motor is led out in the joint area of the heat dissipation air flow, the interference of two heat dissipation air flows to the heat dissipation of the other motor is effectively avoided, and the respective heat dissipation effect of the upper motor and the lower motor is ensured.
Drawings
FIG. 1 is a schematic view of an external structure of a motor unit according to an embodiment of the present invention;
FIG. 2 is a schematic view of a part of an internal structure of a motor unit according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure of a motor unit according to an embodiment of the present invention.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Because the problem of outward dissipation of the air outlet of the fan is more obvious, the wind attenuation phenomenon applied to the surface of the motor is less than expected, and based on the problems in the prior art, the invention provides a motor set, as shown in fig. 1, 2 and 3, which comprises: the shell 10, set up the last motor and the lower motor in the shell 10, in this embodiment, go up motor and lower motor symmetrical arrangement, and be the inner rotor motor, rotor 01 sets up in stator 02, rotor 01's pivot 011 draws forth the setting, wherein, go up motor and lower motor and shell 10 clearance setting, shell 10's top and bottom all are provided with the through-hole, in order to form the air intake, shell's waist is provided with the opening, in order to form the air outlet, in order to form the heat dissipation wind channel between last motor and lower motor's outer wall and shell 10, restrict the heat dissipation air current in the heat dissipation wind channel, avoid the loss of heat dissipation air current, can ensure the surface that the heat dissipation air current is pressed close to the motor as far as possible simultaneously, ensure the efficiency of taking away heat from the motor surface, ensure the radiating efficiency.
The heat dissipation air flue is internally provided with two first centrifugal fans 20, the first centrifugal fans 20 are respectively and fixedly connected with rotors 01 of an upper motor and a lower motor in a coaxial mode, the first centrifugal fans 20 are respectively arranged at two air inlets, when the upper motor and the lower motor work, the two first centrifugal fans 20 are respectively driven by the two rotors 01 to operate, external air is sucked into the heat dissipation air flue and is conveyed into the heat dissipation air flue, and heat dissipation air flow is formed in the heat dissipation air flue.
The motor group provided by the invention is provided with the shell outside the motor, the closed type heat dissipation air duct is formed between the shell and the motor, the air inlets are arranged at the top and the bottom of the shell, the air outlets are arranged at the waist of the shell, the two air inlets are respectively provided with the first centrifugal fans, heat dissipation air flows are fed in from the top and the bottom and respectively flow through the upper motor and the lower motor, are converged at the waist position of the motor group and are discharged from the air outlets, the two paths of heat dissipation air flows are limited in the heat dissipation air duct, the air flow speed and the air flow are guaranteed, the heat dissipation efficiency can be effectively guaranteed, and the heat dissipation capacity of the motor group is improved.
The motor set provided by the invention can be used in a double-rotor aircraft, the upper motor and the lower motor can be respectively used for driving the upper rotor and the lower rotor, the rotating speeds of the upper motor and the lower motor can be respectively controlled correspondingly, the rotating speeds of the two first centrifugal fans are consistent with the rotating speeds of the corresponding motors, the flow of heat dissipation air flow can be improved along with the increase of the rotating speeds of the motors, the heat dissipation capacity is adaptively improved, and the working reliability of the corresponding motors is ensured.
In order to improve the safety, the external sundries are prevented from falling into the motor arranged in the housing 10, in this embodiment, the waist of the housing 10 is further extended with a first protecting shell 11, the first protecting shell 11 is formed with an air outlet duct, and the air outlet duct is communicated with the air outlet and extends downwards along the side wall of the housing 10 so as to lead out the air outlet downwards. Wherein, the air outlet on the main body of the casing 10 is completely shielded by the first protecting shell 11, so that the external sundries can be effectively prevented from falling into the casing 10 in the working state and the non-working state, and the safety of the motor unit is ensured.
In order to avoid that the exhausted hot air is sucked into the heat dissipation air duct again, in the embodiment, the bottom of the shell 10 is further provided with a third protective shell 13, the third protective shell 13 is provided with a second air inlet air duct, the second air inlet air duct is communicated with an air inlet at the bottom of the shell 10 and extends to the side wall position of the shell 10, the outlet of the air outlet air duct and the inlet of the second air inlet air duct extend along the circumferential direction of the shell, and the positions are staggered, so that the air outlet direction and the two air inlet directions are completely staggered on the whole, the risk that the exhausted hot air is sucked into the heat dissipation air duct again is effectively reduced, the inhaled heat dissipation air is cold air, and the heat dissipation reliability is ensured.
In order to further reduce the risk that the exhausted hot air is sucked into the heat dissipation air duct again, the setting height of the top air inlet of the second air inlet air duct is at least flush with or higher than the setting height of the outlet of the air outlet air duct.
In order to prevent the sundries such as rainwater and stones from falling into the third protective housing 13, in this embodiment, the bottom of the third protective housing 13 is provided with a sundry outlet 131, and the sundries such as rainwater and stones falling into the second air inlet duct from the top of the third protective housing 13 can be discharged from the sundry outlet 131.
Specifically, in this embodiment, the setting position of the sundry outlet 131 is vertically aligned with the air inlet position of the second air inlet duct, so that sundries such as rainwater and stones that vertically fall into the second air inlet duct can be prevented from colliding with the third protective shell 13 and bouncing to fall into the inner area of the second air inlet duct, and waterproof and dustproof effects are ensured.
Meanwhile, to further improve the capability of discharging the sundries falling into the second air inlet duct, in this embodiment, the sundries outlet 131 extends downward from the third protecting shell 13, and the caliber gradually decreases outward, so that the peripheral area above the third protecting shell is an inclined surface, so that the sundries falling into the peripheral area can naturally slide down and be discharged.
At the top of the housing 10, a second protective shell 12 is further provided, the second protective shell 12 covers the air inlet at the top of the housing 10, and a first air inlet duct communicating with the air inlet at the top of the housing 10 is formed, the second protective shell 12 is disc-shaped as a whole, the edge of the second protective shell 12 extends obliquely downward to be flush with the top surface of the main body of the housing 10 (in an alternative embodiment, lower than the top surface of the main body of the housing 10), and the outer edge of the top of the housing 10 is in a chamfer structure so as to form an obliquely downward air inlet between the top of the housing 10 and the second protective shell 12.
Wherein, because the gas outlet is guided to be downward by first protecting shell 11, the exhaust steam is difficult to flow to the top again, and the downward air inlet of slope that forms between shell 10's top and the second protecting shell 12 sets up to the round along the circumference of motor group, can ensure the air inlet efficiency of upper portion, ensures the radiating effect.
In order to improve the air-out efficiency, in this embodiment, a second centrifugal fan 30 is further disposed between the upper motor and the lower motor, the heat dissipation air flow in the heat dissipation air duct flows to the air outlet to be discharged through the second centrifugal fan 30, and additional discharging power is provided for the heat dissipation air flow between the upper motor and the lower motor through the second centrifugal fan 30, so that the discharging efficiency of the heat dissipation air flow can be improved, the deceleration influence of two paths of heat dissipation air flows in the process of converging is avoided, the overall fluid smoothness of the heat dissipation air flow is ensured, and the heat dissipation effect is ensured.
In order to avoid convection of the two paths of heat dissipation airflows, in the present embodiment, the second centrifugal fan 30 includes a partition plate 31, centrifugal fan blades 32 are disposed on the upper surface and the lower surface of the partition plate 31, and the disposed position of the partition plate 31 corresponds to the waist position of the air outlet, so as to ensure that the upper path of heat dissipation airflows and the lower path of heat dissipation airflows can be smoothly conveyed to the air outlet.
And correspond with the application in two rotor crafts, the space below baffle 31 is greater than the space above, the rotational speed of lower motor is greater than the rotational speed of last motor promptly, the rotational speed of the coaxial fixed connection's of rotor with lower motor first centrifugal fan is higher than the coaxial fixed connection's of rotor with last motor first centrifugal fan, the flow of the radiating air current in the lower radiating wind channel is bigger, dispose bigger radiating air current exhaust space for baffle 31 below, can balance the air current flow and the atmospheric pressure when upper and lower two-way radiating air current are discharged respectively by the space above and below baffle 31, avoid appearing the hedging phenomenon, in order to ensure the circulation discharge reliability of two-way radiating air current, guarantee cooling system's operational reliability.
That is, the proportion of the air duct size from the space above the partition plate 31 and the space below to the air outlet is consistent with the proportion of the rotating speed of the upper motor and the rotating speed of the lower motor, so that the airflow flow and the air pressure of the upper and lower paths of heat dissipation airflows respectively discharged from the upper and lower spaces of the partition plate 31 can be balanced, the phenomenon of opposite impact is avoided, the circulation and discharge reliability of the two paths of heat dissipation airflows is ensured, the working reliability of a heat dissipation system is ensured, and when the rotating speed of the upper motor is greater than the rotating speed of the lower motor, the upper space corresponding to the partition plate 31 is greater than the size of the lower space.
In order to improve the working coordination of the two first centrifugal fans 20 and the second centrifugal fan 30, in this embodiment, the second centrifugal fan 30 is a Qu Shexing centrifugal fan, the first centrifugal fan 20 is a straight-blade type centrifugal fan, and the blowing efficiency of the curved-blade type centrifugal fan is higher than that of the straight-blade type centrifugal fan, so that the air-out of the two first centrifugal fans 20 can be effectively converged and processed, and the reduction of the working efficiency of the first centrifugal fans due to insufficient converging capability is avoided.
In this embodiment, the upper motor and the lower motor are both inner rotor motors, the outer wall of the stator 02 of the inner rotor motor is extended with cooling fins, the cooling fins comprise a first type of cooling fin 021 and a second type of cooling fin 022, the thickness of the first type of cooling fin 021 is larger than that of the second type of cooling fin 022, screw holes are formed in the first type of cooling fin 021, positioning holes 101 are formed in the side wall of the housing 10, the housing 10 is fixed to the first type of cooling fin 021 through bolts, and then the housing 10 is fixed to the stator 02.
In this embodiment, the casing 10 may be of a three-section structure, and corresponds to the setting positions of the upper motor, the lower motor and the second centrifugal fan 30, and when assembled, the first protecting shell 11, the second protecting shell 12 and the third protecting shell 13 may be assembled in sequence from bottom to top, and are fixedly connected with the middle section, the upper section and the lower section of the casing 10, specifically, the positioning holes are formed in the upper section and the lower section, and are fixed with the upper motor and the lower motor through the upper section and the lower section, and the middle section is clamped and fixed through the upper section and the lower section, and is in sealing butt joint.
The radiating fins extend vertically on the unfolding surface of the side wall of the stator 02 or extend obliquely or extend in a bending mode, so that the length of the sub radiating air duct can be increased, the radiating efficiency is improved, and the number of blades of each centrifugal fan and the arrangement form of the radiating fins can be selected adaptively according to specific radiating requirements.
In this embodiment, the second centrifugal fan 30 is disposed between the upper motor and the lower motor, and is further configured with a driving motor, and the rotational speed of the second centrifugal fan 30 can be adjusted independently, and the rotational speed of the second centrifugal fan 30 can be adjusted in real time according to the real-time rotational speed of the motor unit.
In an alternative embodiment, the rotation shafts of the rotors of the upper motor and the lower motor extend to the setting position of the second centrifugal fan 30, and the second centrifugal fan can be directly driven by the rotors of the upper motor and the lower motor when the rotation speeds of the rotors of the upper motor and the lower motor are synchronous; when the rotor speeds of the upper motor and the lower motor are not synchronous, the second centrifugal fan 30 can be driven after the rotor speeds of the upper motor and the lower motor are balanced through a differential mechanism and other structures, or the second centrifugal fan can be directly driven by the rotor of the motor with higher speed.
In this embodiment, each corner of the heat dissipation air duct is subjected to smoothing treatment, that is, at least the outer corner of the corner is subjected to chamfering treatment, so that the heat dissipation air flow smoothly changes the circulation direction, the influence of reversing impact on the air flow is reduced, and the heat dissipation efficiency is ensured.
The motor group provided by the invention comprises: the device comprises a shell, an upper motor and a lower motor, wherein the upper motor and the lower motor are arranged in the shell in a clearance manner, air inlets are formed in the top and the bottom of the shell, and an air outlet is formed in the waist of the shell so as to form a heat dissipation air channel between the outer walls of the upper motor and the lower motor and the shell; the heat dissipation air duct is internally provided with two first centrifugal fans which are respectively and fixedly connected with the rotors of the upper motor and the lower motor in a coaxial manner and are respectively arranged at two air inlets, when the upper motor and the lower motor work, the first centrifugal fans synchronously rotate to suck external air from the air inlets, heat dissipation air flow is formed in the heat dissipation air duct and is converged at the waist of the motor group and discharged from the air outlets, and then heat generated by the motor work is taken out. The motor set provided by the invention is provided with the shell outside the motor, and the heat dissipation air duct with the closed plate is formed, so that heat dissipation air flow can be effectively limited in a certain area close to the surface of the motor, the dissipation of the heat dissipation air flow is effectively reduced, the heat dissipation effect is improved, two heat dissipation air flows are led out from the waist of the motor set and cannot flow through the surface of the other motor, the heat dissipation interference to the other motor is avoided, and the heat dissipation effect of the two motors is ensured.
The air outlet is led out downwards from the side wall of the shell through the first protective shell, so that foreign matters such as external rainwater, dust and the like can be prevented from falling into the motor in the shell, and the safety is ensured;
the air inlet at the lower part is led to the side wall of the shell through the third protective shell and is staggered with the leading-out area of the first protective shell, so that the risk that exhausted hot air is sucked into the heat dissipation system again is effectively avoided, the sucked heat dissipation air is a low-temperature system, and the reliability of air cooling heat dissipation is guaranteed.
The side part of the third protective shell is transparent up and down, so that sundries such as rainwater, larger dust and stones falling from the upper part can fall out in order, the deposition of the sundries in the third protective shell is avoided, the protection effects such as dust prevention and water prevention of air inlet below are ensured, and the safety of the system is ensured.
And a second centrifugal fan is further arranged between the upper motor and the lower motor, so that the convection risk of the upper heat dissipation air flow and the lower heat dissipation air flow is reduced by utilizing the guidance quality of the second centrifugal fan, the discharge reliability of the heat dissipation air flow is ensured, and the heat dissipation reliability is ensured.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (5)
1. An electric machine set, comprising: the shell, an upper motor and a lower motor which are arranged in the shell, wherein,
the upper motor, the lower motor and the shell are arranged in a clearance way, through holes are formed in the top and the bottom of the shell to form an air inlet, and an opening is formed in the waist of the shell to form an air outlet so as to form a heat dissipation air channel between the outer surfaces of the upper motor and the lower motor and the shell;
two first centrifugal fans are arranged in the heat dissipation air duct, are respectively and fixedly connected with the rotors of the upper motor and the lower motor in a coaxial manner, and are respectively arranged at the two air inlets;
the waist of the shell is also extended with a first protective shell, the first protective shell is provided with an air outlet channel, and the air outlet channel is communicated with the air outlet and extends downwards along the side wall of the shell so as to lead out the air outlet downwards;
the bottom of the shell is also provided with a third protective shell, the third protective shell is provided with a second air inlet duct, the second air inlet duct is communicated with an air inlet at the bottom of the shell and extends to the side wall position of the shell, and an outlet of the air outlet duct and an inlet of the second air inlet duct extend along the circumferential direction of the shell and are staggered;
a second centrifugal fan is further arranged between the upper motor and the lower motor, and the heat dissipation airflow in the heat dissipation air duct flows to the air outlet through the second centrifugal fan and is discharged;
the top of the shell is also provided with a second protective shell, the second protective shell covers the air inlet at the top of the shell and is provided with a first air inlet duct communicated with the air inlet at the top of the shell, the edge of the second protective shell extends obliquely downwards, and the outer edge of the top of the shell is of a chamfer structure so as to form an obliquely downwards air inlet between the top of the shell and the second protective shell;
and the bottom of the third protective shell is provided with a sundry discharge port, and the setting position of the sundry discharge port is vertically aligned and matched with the air inlet position of the second air inlet duct.
2. The motor unit of claim 1, wherein the debris discharge port extends downwardly from the third protective casing and tapers outwardly in diameter.
3. The motor unit according to claim 1, wherein the second centrifugal fan comprises a partition plate, and both upper and lower surfaces of the partition plate are provided with centrifugal fan blades, wherein,
the arrangement position of the partition plate corresponds to the waist position of the air outlet, so that the space above the partition plate and the space below the partition plate are communicated to the air outlet;
the proportion of the size of the air channel from the space above the partition plate to the air outlet is consistent with the proportion of the rotating speeds of the upper motor and the lower motor.
4. The motor assembly of claim 1, wherein the second centrifugal fan is a Qu Shexing centrifugal fan and the first centrifugal fan is a straight vane type centrifugal fan.
5. The motor unit of claim 1, wherein the upper motor and the lower motor are inner rotor motors, and heat sinks extend from outer walls of stators of the inner rotor motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311708389.0A CN117411233B (en) | 2023-12-13 | 2023-12-13 | Motor group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311708389.0A CN117411233B (en) | 2023-12-13 | 2023-12-13 | Motor group |
Publications (2)
| Publication Number | Publication Date |
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| CN117411233A CN117411233A (en) | 2024-01-16 |
| CN117411233B true CN117411233B (en) | 2024-03-22 |
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| CN202311708389.0A Active CN117411233B (en) | 2023-12-13 | 2023-12-13 | Motor group |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170344A (en) * | 1982-03-29 | 1983-10-06 | Fuji Electric Co Ltd | Tandem type rotary electric machine |
| CN87104033A (en) * | 1986-06-02 | 1987-12-16 | 株式会社佐竹制作所 | Speed adjustable induction motor |
| DE102010001705A1 (en) * | 2010-02-09 | 2011-08-11 | Siemens Aktiengesellschaft, 80333 | Electrical machine i.e. double motor, for e.g. chain scrapper, has housing provided for stators, cooling circuits i.e. inner cooling circuits, arranged in inner side of housing, and rotors comprising respective sets of cooling channels |
| CN107147260A (en) * | 2017-07-19 | 2017-09-08 | 沈阳工业大学 | A kind of axial permanent magnetic auxiliary radial direction magnetic resistance high-speed electric expreess locomotive with combination cooling structure |
| CN109038943A (en) * | 2016-05-11 | 2018-12-18 | 韦雪 | A kind of integrated dual-purpose machine device of motor generator |
| CN111526711A (en) * | 2017-12-22 | 2020-08-11 | 本田技研工业株式会社 | Prime mover of working machine |
| CN215186377U (en) * | 2021-03-23 | 2021-12-14 | 广东力源工程技术有限公司 | Electric device with lateral heat dissipation |
| CN216904522U (en) * | 2022-02-28 | 2022-07-05 | 苏州特种电机厂有限公司 | Explosion-proof motor housing that radiating efficiency is high |
| CN217388401U (en) * | 2021-12-15 | 2022-09-06 | 沈阳黎明电机制造有限公司 | Novel explosion-proof motor housing |
| CN218368322U (en) * | 2022-08-30 | 2023-01-24 | 峰飞航空科技(昆山)有限公司 | Heat abstractor, bi-motor and unmanned aerial vehicle |
| CN218387139U (en) * | 2022-08-30 | 2023-01-24 | 峰飞航空科技(昆山)有限公司 | Motor and heat dissipation device thereof |
| CN116317281A (en) * | 2023-03-17 | 2023-06-23 | 温州大学平阳智能制造研究院 | Detachable brushless motor device |
| CN219643715U (en) * | 2023-05-23 | 2023-09-05 | 重庆大江动力设备制造有限公司 | Double-air-duct heat radiation structure of generator |
-
2023
- 2023-12-13 CN CN202311708389.0A patent/CN117411233B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58170344A (en) * | 1982-03-29 | 1983-10-06 | Fuji Electric Co Ltd | Tandem type rotary electric machine |
| CN87104033A (en) * | 1986-06-02 | 1987-12-16 | 株式会社佐竹制作所 | Speed adjustable induction motor |
| DE102010001705A1 (en) * | 2010-02-09 | 2011-08-11 | Siemens Aktiengesellschaft, 80333 | Electrical machine i.e. double motor, for e.g. chain scrapper, has housing provided for stators, cooling circuits i.e. inner cooling circuits, arranged in inner side of housing, and rotors comprising respective sets of cooling channels |
| CN109038943A (en) * | 2016-05-11 | 2018-12-18 | 韦雪 | A kind of integrated dual-purpose machine device of motor generator |
| CN107147260A (en) * | 2017-07-19 | 2017-09-08 | 沈阳工业大学 | A kind of axial permanent magnetic auxiliary radial direction magnetic resistance high-speed electric expreess locomotive with combination cooling structure |
| CN111526711A (en) * | 2017-12-22 | 2020-08-11 | 本田技研工业株式会社 | Prime mover of working machine |
| CN215186377U (en) * | 2021-03-23 | 2021-12-14 | 广东力源工程技术有限公司 | Electric device with lateral heat dissipation |
| CN217388401U (en) * | 2021-12-15 | 2022-09-06 | 沈阳黎明电机制造有限公司 | Novel explosion-proof motor housing |
| CN216904522U (en) * | 2022-02-28 | 2022-07-05 | 苏州特种电机厂有限公司 | Explosion-proof motor housing that radiating efficiency is high |
| CN218368322U (en) * | 2022-08-30 | 2023-01-24 | 峰飞航空科技(昆山)有限公司 | Heat abstractor, bi-motor and unmanned aerial vehicle |
| CN218387139U (en) * | 2022-08-30 | 2023-01-24 | 峰飞航空科技(昆山)有限公司 | Motor and heat dissipation device thereof |
| CN116317281A (en) * | 2023-03-17 | 2023-06-23 | 温州大学平阳智能制造研究院 | Detachable brushless motor device |
| CN219643715U (en) * | 2023-05-23 | 2023-09-05 | 重庆大江动力设备制造有限公司 | Double-air-duct heat radiation structure of generator |
Non-Patent Citations (1)
| Title |
|---|
| 新型高压电机(IP23)通风散热特点;陈文胜, 崔达, 李振宇;防爆电机;20040515(第02期);第38-39页 * |
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| Publication number | Publication date |
|---|---|
| CN117411233A (en) | 2024-01-16 |
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