CN113472124A - Motor and air conditioner - Google Patents
Motor and air conditioner Download PDFInfo
- Publication number
- CN113472124A CN113472124A CN202110759007.1A CN202110759007A CN113472124A CN 113472124 A CN113472124 A CN 113472124A CN 202110759007 A CN202110759007 A CN 202110759007A CN 113472124 A CN113472124 A CN 113472124A
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- CN
- China
- Prior art keywords
- cylinder
- motor
- end cover
- end cap
- axial
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- 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
- H02K5/06—Cast metal casings
-
- 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
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention provides a motor and an air conditioner, wherein the motor comprises a shell cylinder, a first end cover and a second end cover, wherein the first end cover and the second end cover are detachably connected to the two axial ends of the shell cylinder, and a wire outlet hole is formed in the first end cover or the second end cover. According to the invention, the wire outlet hole arranged on the shell barrel in the prior art is arranged on the first end cover or the second end cover, so that the axial length of the shell barrel only needs to meet the matching requirement of the stack height of the stator core, the relative position relation between the stator winding and the stator core and the shell barrel does not need to be considered, the problem that the leading-out wire is difficult to lead out or the shell material is excessively wasted due to the fact that the leading-out convenience and feasibility of the leading-out wire are considered in the motor series with different powers and the same base in the prior art is effectively avoided, and the leading-out of the leading-out wire and the assembly process of the motor are greatly facilitated.
Description
Technical Field
The invention belongs to the technical field of motor manufacturing, and particularly relates to a motor and an air conditioner.
Background
General motor need reserve out the line box position on motor casing and draw forth the power cord, and the iron core of high-power motor can be than longer, often leads to: (1) the stator iron core is too long and blocks the position of a wire outlet box (a wire outlet hole is correspondingly constructed) of the motor shell, so that a power line is difficult to lead out during the manufacturing of the motor, the manufacturing is difficult, the production efficiency is low, and even no wire can be led out to cause the scrapping of the motor shell; (2) the power cord is conveniently drawn out when the motor is manufactured, and designers need to design the length of the shell to be longer, so that the used materials of the shell are increased, and the material cost of the motor is higher.
For motors with the same machine base and different powers, the difference is that the iron core stack heights are different, and the stack heights have a difference of dozens of millimeters, but when the structure of the motor shell is designed, in order to save the die sinking cost, the length of the shell can be designed to be suitable for the motor with the longer iron core, and the motor with the shorter iron core also uses the shell, so that for the motor with the shorter iron core, the waste of shell materials of dozens of millimeters can be caused, the design cost is higher, of course, the different iron core stack heights can be matched in a mode that the shell is directly opened by two dies, but the die sinking cost of the motor is increased in the mode.
Disclosure of Invention
Therefore, the invention provides a motor and an air conditioner, which can overcome the defects that the lead-out wire of the motor is difficult to lead out or the material of the shell is wasted too much because the lead-out wire is arranged on the shell of the motor and the matching performance of the position of the lead-out wire and the stack height of the stator core is poor when the motor series with different powers adopts the same shell.
In order to solve the above problems, the present invention provides an electric motor, which includes a casing barrel, and a first end cover and a second end cover detachably connected to two axial ends of the casing barrel, wherein the first end cover or the second end cover is configured with a wire outlet.
Preferably, the first end cover is a motor front end cover, and the wire outlet hole is formed in the first end cover.
Preferably, the first end cap includes an end cap disc and a cylindrical wall disposed around an outer edge of the end cap disc, and the outlet hole is formed in the cylindrical wall.
Preferably, the cylinder wall is provided with an opening, and the opening is positioned with one axial end of the shell cylinder through a spigot.
Preferably, when the first end cover is assembled at one axial end of the casing barrel, the stator winding end portion at the end corresponding to the first end cover is a first winding end portion, the first winding end portion is at least partially accommodated in the barrel wall, and a first axial gap is formed between the first winding end portion and the end cover disk.
Preferably, the axial width of the first axial gap is delta, and delta is more than or equal to 3mm and less than or equal to 20 mm.
Preferably, the material of the shell cylinder is tensile aluminum.
Preferably, the axial length of the shell cylinder is La, a stator core is arranged in the shell cylinder, the stacking height of the stator core is Lb, and La-Lb which is more than or equal to 5mm is less than or equal to 10 mm.
Preferably, the casing barrel includes a barrel body and a heat dissipation runner portion surrounding the peripheral wall of the barrel body, the heat dissipation runner portion includes a plurality of air flow channels running through in the axial direction of the barrel body.
Preferably, the airflow channel is in a regular hexagon shape projected on any radial plane of the cylinder body.
Preferably, the wall thickness of the partition wall clamped between any two adjacent airflow channels is s, and s is more than or equal to 1mm and less than or equal to 3 mm; and/or the side length of the regular hexagon is l, and l is more than or equal to 1.5mm and less than or equal to 5 mm; and/or the radius of the inner hole of the cylinder body is d, the side length of the regular hexagon is l, and l/d is more than or equal to 0.02 and less than or equal to 0.08.
Preferably, the plurality of air flow channels are uniformly distributed around the central axis of the cylinder body, and are distributed in a plurality of layers in a staggered manner in the radial direction of the cylinder body.
The invention also provides an air conditioner which comprises the motor.
According to the motor and the air conditioner, the wire outlet hole arranged on the shell barrel in the prior art is arranged on the first end cover or the second end cover, so that the axial length of the shell barrel only needs to meet the matching requirement of the stack height of the stator core, the relative position relation between the stator winding and the stator core and the shell barrel does not need to be considered, the problem that the leading-out wire is difficult to lead out or the shell material is excessively wasted due to the fact that the leading-out convenience and feasibility of the leading-out wire of motor series with different powers and bases in the prior art need to be considered is effectively avoided, and the leading-out of the leading-out wire and the motor assembling process are greatly facilitated.
Drawings
Fig. 1 is a schematic external structural view of a motor according to an embodiment of the present invention;
fig. 2 is a schematic view of the internal structure of the motor in fig. 1;
FIG. 3 is a schematic structural diagram of the housing cylinder of FIG. 1;
FIG. 4 is a schematic view of a first end cap of the enclosure of FIG. 3;
fig. 5 is a comparison of the time consumption of the power supply leading-out wire of the motor adopting the technical scheme of the invention and a common motor (namely in the prior art).
The reference numerals are represented as:
1. a housing barrel; 11. a cartridge body; 12. a heat dissipation flow channel part; 2. a first end cap; 21. an end cap plate; 22. a cylinder wall; 23. an inner spigot; 3. a second end cap; 4. a wire outlet hole; 5. a stator core; 6. a first winding end portion.
Detailed Description
Referring to fig. 1 to 5 in combination, according to an embodiment of the present invention, there is provided a motor, including a housing cylinder 1, and a first end cap 2 and a second end cap 3 detachably connected to both axial ends of the housing cylinder 1, where an outlet 4 is configured on the first end cap 2 or the second end cap 3, it can be understood that a power outlet of a stator winding in the motor will be led out from the outlet 4. Among this technical scheme, set up wire hole 4 on casing barrel 1 among the prior art on first end cover 2 or second end cover 3, thereby make the axial length of casing barrel 1 only need satisfy stator core 5 fold high match demand can, and need not to take into account the relative position relation between taboo stator winding and stator core 5 both and casing barrel 1, effectively avoided among the prior art motor series of the same frame of different power because need take into account the lead-out wire that the convenience of drawing out and feasibility of lead-out wire brought and draw forth the difficulty or the extravagant too much problem of casing material takes place, greatly facilitated the lead-out of lead-out wire and motor assembling process. It can be understood that, since the material consumption of the first end cap 2 and the second end cap 3 is much less than that of the casing cylinder 1, when a series of end caps cannot meet the requirement of the leading-out position of the leading-out wire, the corresponding end cap can be replaced, which obviously reduces the manufacturing cost of the motor.
In some embodiments, the first end cap 2 is a front end cap of a motor, the outlet hole 4 is configured on the first end cap 2, specifically, the first end cap 2 includes an end cap disc 21 and a cylinder wall 22 disposed around an outer edge of the end cap disc 21, the outlet hole 4 may be configured on the end cap disc 21, and preferably, the outlet hole 4 is configured on the cylinder wall 22, so as to increase a maintenance space of a position of a power output shaft of the motor.
In some embodiments, the cylinder wall 22 has an opening, the opening and one axial end of the housing cylinder 1 are located through a seam allowance, specifically, an inner edge of the opening is configured with an inner seam allowance 23, and correspondingly, an end portion of the corresponding end of the housing cylinder 1 is configured with a corresponding outer seam allowance, the outer seam allowance and the inner seam allowance 23 can be matched and buckled together when being assembled, so as to realize the assembling and locating of the first end cover 2 and the housing cylinder 1, and similarly, the assembling and locating between the second end cover 3 and the housing cylinder 1 can also be the same.
In some embodiments, when the first end cap 2 is assembled at one axial end of the housing tube 1, the stator winding end portion at the end corresponding to the first end cap 2 is the first winding end portion 6, the first winding end portion 6 is at least partially accommodated in the tube wall 22, and a first axial gap is provided between the first winding end portion 6 and the end cap disc 21, preferably, the axial width of the first axial gap is δ, δ is greater than or equal to 3mm and less than or equal to 20mm, so as to ensure an electrical safety distance between the first winding end portion 6 and the first end cap 2 while accommodating the first winding end portion 6 conveniently. In a specific embodiment, the axial height L3 of the first winding overhang 6 is generally 20mm to 60mm, and the corresponding axial height L1 of the first end cap 2 is 23mm to 80mm (the thickness of the end cap disc 21 should be considered).
In some embodiments, the material of casing barrel 1 is tensile aluminium, adopts tensile aluminium preparation casing barrel 1 can be in when the axial length of casing barrel 1 is shorter relatively for example shorter than the pile height of stator core 5 in it, can be to its axial length of the tensile increase of certain degree of axial application of force of casing barrel 1 forms the compensation to the axial length of casing barrel 1, and then makes the electrical safety distance between first winding end portion 6 and first end cover 2 obtains guaranteeing. Preferably, the axial length of the machine shell cylinder 1 is La, the stator core 5 is arranged in the machine shell cylinder 1, the stacking height of the stator core 5 is Lb, and La-Lb is larger than or equal to 5mm and smaller than or equal to 10 mm. For example, in a specific embodiment, the stack height of the stator core 5 of the motors according to H63-H160 is 30 mm-200 mm, the range of the housing cylinder 1 can be 35 mm-210 mm, and the axial length of the first end cover 2 and the second end cover 3 can be adjusted according to the stack height of the stator core and the height of the winding end, so as to reserve a safe electrical distance.
In some embodiments, the casing barrel 1 includes a barrel 11 and a heat dissipation runner part 12 surrounding the peripheral wall of the barrel 11, the heat dissipation runner part 12 includes a plurality of airflow channels passing through in the axial direction of the barrel 11, through which the casing barrel 1 can dissipate heat, effectively reducing the temperature rise in the motor operation process. The motor further comprises a corresponding rotating shaft (not shown in the figure), the rotating shaft extends out of the outer side of the motor (for example, the outer side of the first end cover 2 or the outer side of the second end cover 3) and is sleeved with a fan blade (not shown in the figure), and when the motor runs, the fan blade is driven to rotate and drives airflow outside the motor shell barrel 1 to circulate in the airflow channel to take away heat. It will be appreciated that the two ends of the shaft are mounted on respective bearings (not referenced in the figures).
The projection is on any radial plane of the cylinder body 11, the airflow channel is in a regular hexagon shape, so that the heat dissipation flow channel part 12 is in a honeycomb shape on the cross section, and the structure can enable the thickness of the solid structure (namely, the wall body between two adjacent regular polygons) at the heat dissipation flow channel part 12 to be more uniform, thereby being beneficial to the heat dissipation balance of the shell cylinder body 1.
In some embodiments, in order to ensure the mechanical strength of the casing cylinder 1 (which is usually a casting), it is preferable that the wall thickness of the partition wall sandwiched between any two adjacent airflow channels is s, 1mm ≦ s ≦ 3mm (an excessively small thickness is not favorable for the formation of a casting); and/or the side length of the regular hexagon is l, and l is more than or equal to 1.5mm and less than or equal to 5 mm; and/or the radius of the inner hole of the cylinder body 11 is d, the side length of the regular hexagon is l, l/d is more than or equal to 0.02 and less than or equal to 0.08, the difficulty degree of the machine shell machining can be increased due to the undersize of the side length, the material consumption of the shell structure can be increased due to the oversize, and the cost control is not facilitated. Furthermore, many airflow channel encircles the axis evenly distributed of a section of thick bamboo body 11, and is in a plurality of layers of crisscross distribution in the footpath of a section of thick bamboo body 11, multilayer airflow channel is favorable to the water conservancy diversion of motor self-driven (aforementioned blade drive) cold wind, reinforcing radiating effect.
According to an embodiment of the present invention, there is also provided an air conditioner including the motor described above.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (13)
1. The motor is characterized by comprising a shell cylinder (1), and a first end cover (2) and a second end cover (3) which are detachably connected to two axial ends of the shell cylinder (1), wherein a wire outlet hole (4) is formed in the first end cover (2) or the second end cover (3).
2. The electrical machine according to claim 1, characterized in that the first end cap (2) is a machine front end cap, and the outlet opening (4) is formed in the first end cap (2).
3. An electric machine according to claim 1 or 2, characterized in that the first end cap (2) comprises an end cap disc (21) and a cylinder wall (22) arranged around the outer edge of the end cap disc (21), the outlet opening (4) being configured on the cylinder wall (22).
4. The machine according to claim 3, characterized in that the cylinder wall (22) has an opening which is positioned with an axial end of the machine housing cylinder (1) by means of a spigot.
5. An electric machine according to claim 3, characterized in that the stator winding overhang of the end corresponding to the first end cap (2) is a first winding overhang (6) when the first end cap (2) is assembled to the axial end of the machine housing cylinder (1), the first winding overhang (6) being at least partially accommodated in the cylinder wall (22) with a first axial clearance between the first winding overhang (6) and the end cap disc (21).
6. The electric machine of claim 5 wherein the first axial gap has an axial width of δ, 3mm ≦ δ ≦ 20 mm.
7. The machine according to any of claims 1 to 6, characterized in that the material of the machine shell cylinder (1) is drawn aluminum.
8. The motor according to claim 7, characterized in that the axial length of the housing cylinder (1) is La, the housing cylinder (1) is internally provided with a stator core (5), and the stack height of the stator core (5) is Lb, La-Lb is larger than or equal to 5mm and smaller than or equal to 10 mm.
9. The electric machine according to any one of claims 1 to 6, wherein the casing cylinder (1) comprises a cylinder body (11) and a heat dissipation flow path portion (12) provided around an outer peripheral wall of the cylinder body (11), the heat dissipation flow path portion (12) comprising a plurality of air flow passages penetrating in an axial direction of the cylinder body (11).
10. The machine according to claim 9, characterised in that the air flow channels are regular hexagons, projected on any radial plane of the cartridge body (11).
11. The motor of claim 10, wherein the wall thickness of the partition wall sandwiched between any two adjacent air flow channels is s, 1mm ≤ s ≤ 3 mm; and/or the side length of the regular hexagon is l, and l is more than or equal to 1.5mm and less than or equal to 5 mm; and/or the radius of an inner hole of the cylinder body (11) is d, the side length of the regular hexagon is l, and l/d is more than or equal to 0.02 and less than or equal to 0.08.
12. The machine according to claim 10, characterised in that said air flow channels are uniformly distributed around the central axis of said cartridge body (11) and are staggered in a plurality of layers in a radial direction of said cartridge body (11).
13. An air conditioner characterized by comprising the motor of any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759007.1A CN113472124B (en) | 2021-07-05 | 2021-07-05 | Motor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759007.1A CN113472124B (en) | 2021-07-05 | 2021-07-05 | Motor and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113472124A true CN113472124A (en) | 2021-10-01 |
| CN113472124B CN113472124B (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110759007.1A Active CN113472124B (en) | 2021-07-05 | 2021-07-05 | Motor and air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN113472124B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113472124B (en) | 2022-11-25 |
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