CN114172311A - Cover body structure, motor, compressor and air conditioner - Google Patents

Cover body structure, motor, compressor and air conditioner Download PDF

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Publication number
CN114172311A
CN114172311A CN202111481561.4A CN202111481561A CN114172311A CN 114172311 A CN114172311 A CN 114172311A CN 202111481561 A CN202111481561 A CN 202111481561A CN 114172311 A CN114172311 A CN 114172311A
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China
Prior art keywords
motor
cover body
cover
groove
groove structure
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CN202111481561.4A
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CN114172311B (en
Inventor
陈飞龙
华贤龙
刘娜
杨文德
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207Casings 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225Terminal boxes or connection arrangements
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/26Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The invention provides a cover body structure, a motor, a compressor and an air conditioner, wherein the cover body structure comprises: the lid body, the inside cavity that has of lid body, be formed with the opening with the cavity intercommunication on the first side of lid body, first side encircles open-ended at least part, and be provided with at least one sunken groove structure on the first side, first side can meet with the casing cooperation of motor, the lid body gets into the casing through the clearance between lid body and the sealed pad in outside air, the water vapor in the air touches groove structure's obstruction, can carry out the reciprocating flow of short time in groove structure's inside, humidity is big, the gas that vapor density is high, easily adhere to on groove structure's wall, thereby isolate in the follow-up air, just so greatly reduced along with the content of the inside moisture of outside air entering motor, the life of motor has been prolonged, property loss has been reduced.

Description

Cover body structure, motor, compressor and air conditioner
Technical Field
The invention belongs to the technical field of sealing structures, and particularly relates to a cover body structure, a motor, a compressor and an air conditioner.
Background
Servo motors are widely used as high-precision power output devices in robots, machine tools, packaging equipment, printing equipment, and the like. In these applications, there are high humidity, underwater working environments where the waterproof performance of the servo motor needs to be considered. The waterproof facilities of traditional motor mainly consider the waterproof of motor outlet, and traditional waterproof construction is shown in figure 1, and this kind of traditional construction takes place to leak very easily in high-pressure and high-humidity environment, makes inside moisture gets into the motor, has reduced the life of motor, takes place internal circuit short circuit easily, causes the incident.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that the traditional motor outlet waterproof structure is easy to leak in a high-pressure high-humidity environment, so that moisture enters the motor, and the service life of the motor is shortened. Thereby providing a lid structure, motor, compressor and air conditioner.
In order to solve the above problem, the present invention provides a cover structure including: the cover body comprises a cover body, wherein a cavity is formed in the cover body, an opening communicated with the cavity is formed in a first side face of the cover body, at least part of the opening is surrounded by the first side face, at least one sunken groove structure is arranged on the first side face, and the first side face can be connected with a machine shell of a motor in a matched mode.
In some embodiments, the structure of the groove structure is a polyhedral, hemispherical, or semi-ellipsoidal groove.
In some embodiments, the groove structure is a square groove with a side length of a, the thickness at the first side face of the cover body is b, and a and b satisfy:
Figure BDA0003395054480000011
in some embodiments, the first side surface has an area S, and when the first side surface is provided with N groove structuresThen the area of the N groove structures is Na2(ii) a The distribution density ρ of the groove structure on the first side satisfies:
Figure BDA0003395054480000021
in some embodiments, ρ is
Figure BDA0003395054480000022
The range takes values.
In some embodiments, when the cover body is an outlet cover, the outlet cover is disposed at the outlet of the cable of the sealed component, and the outlet cover is further provided with an outlet for leading the cable out to the outside of the outlet cover.
In some embodiments, a gasket is disposed between the sealed component and the cover body, and the gasket is attached to the first side surface.
The invention also provides a motor which comprises the cover body structure.
In some embodiments, the cover body is fixed on the casing by screws, and the sealing gasket is arranged between the casing and the cover body.
The invention also provides a compressor which comprises the motor.
The invention also provides an air conditioner which comprises the compressor.
The cover body structure provided by the invention has the following beneficial effects:
the present invention provides a cover structure, including: the method comprises the following steps: the cover body is characterized in that a cavity is arranged in the cover body, an opening communicated with the cavity is formed in the first side face of the cover body, at least part of the opening is surrounded by the first side face, at least one sunken groove structure is arranged on the first side face, the first side face can be matched and connected with a machine shell of the motor, external air of the cover body enters the machine shell through a gap between the cover body and a sealing gasket, water vapor in the air touches the groove structure and can be condensed on the wall of the groove structure, and due to the obstruction of the cavity wall of the groove structure, the air can flow back and forth in the groove structure for a short time, and because of high air humidity, the water vapor density is high and is easy to attach to the wall of the groove structure, so that the water vapor is separated from the air, the content of the water entering the motor along with the external air is greatly reduced, and the service life of the motor is prolonged, the property loss is reduced.
On the other hand, the motor, the compressor and the air conditioner provided by the invention are manufactured based on the cover body structure, and the beneficial effects of the motor, the compressor and the air conditioner refer to the beneficial effects of the cover body structure, which are not described herein in detail.
Drawings
FIG. 1 is a schematic structural diagram of a conventional waterproof structure for a motor outlet;
FIG. 2 is a schematic structural diagram of a cover structure according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a cover construction of an embodiment of the present invention;
FIG. 4 is a view of a cover structure facing a first side according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a motor according to an embodiment of the present invention;
the reference numerals are represented as:
10. a cover body; 11. a first side surface; 12. a groove structure; 13. a cavity; 14. an opening; 20. a housing; 30. a gasket; 40. a cable; 50. and (4) screws.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Problems may occur when the servo motor operates. During normal operation of the servo motor, Q is equal to I2Rt it is known that the stator windings generate a large amount of heat energy. Because the motor belongs to a sealing structureOnly a small portion of the heat will be dissipated through the housing 20 and a large amount of heat will remain in the cavity inside the motor, circulating. In this process, a portion of the air in the motor cavity is exhausted to the outside of the motor along with the heat. Thus, when the motor cools down, a pressure difference is formed between the inside and the outside of the motor due to the loss of a part of air in the motor cavity. At the moment, the pressure P outside the motor1Greater than the pressure P inside the motor2Under the action of the pressure difference, the atmosphere enters the interior of the motor, and at the same time, the moisture in the air also enters the interior of the motor under the action of the pressure difference. In the process, the amount of moisture entering the interior of the motor is not only different from the pressure difference delta P-P1-P2The size of (2) is also related to the degree of sealing at the lid body 10. This places high demands on the degree of sealing of the cap body 10.
The waterproof structure aims to solve the technical problems that the traditional motor wire outlet waterproof structure is easy to leak in a high-pressure high-humidity environment, so that moisture enters the motor, and the service life of the motor is shortened.
As shown in fig. 2 to 5, the present invention provides a cover structure, including: the cover body 10 comprises a cover body 10, a cavity 13 is formed inside the cover body 10, an opening 14 communicated with the cavity 13 is formed on a first side surface 11 of the cover body 10, at least part of the opening 14 is surrounded by the first side surface 11, at least one concave groove structure 12 is arranged on the first side surface 11, and the first side surface 11 can be connected with a casing 20 of a motor in a matching mode.
It should be noted that, when the motor works in a high humidity environment, the air humidity is high, and when the motor stops working, the temperature of the machine body initially drops very quickly, at this time, the air pressure inside the motor decreases, and the outside air enters the casing 20 through the gap between the cover body 10 and the sealing gasket 30.
When the cover body 10 of this embodiment enters the casing 20 through the gap between the cover body 10 and the sealing gasket 30, the water vapor in the air hits the groove structure 12, and a condensation phenomenon occurs on the wall of the groove structure 12, and due to the obstruction of the cavity wall of the groove structure 12, the gas can flow back and forth in the groove structure 12 for a short time, and due to the high humidity of the gas, the water vapor density is high, and the gas is easy to adhere to the wall of the groove structure 12, so as to be separated from the air. Therefore, the content of moisture entering the motor along with the outside air is greatly reduced, the service life of the motor is prolonged, and property loss is reduced.
In some embodiments, the groove structures 12 are polyhedral, hemispherical, or semi-ellipsoidal grooves.
The groove structure 12 of the present embodiment is a polyhedron, a hemisphere or a semi-ellipsoid groove, and can be specifically selected and arranged according to different situations.
The amount of moisture in the air entering the interior of the motor is also related to the size of the cavity of the groove structure 12, and if the cavity of the groove structure 12 is too small, the moisture in the air is trapped too little, so that an ideal result cannot be obtained; if the cavity of the groove structure 12 is too large, the contact area between the cover body 10 and the sealing gasket 30 will be too small, the mechanical strength of the contact portion of the cover body 10 and the sealing gasket 30 will be reduced, and the cover body is easily damaged under the action of the locking stress of the screw 50, and thus a good sealing effect cannot be achieved.
In some embodiments, the groove structure 12 is a square groove with a side length of a, the thickness of the cover body 10 at the first side 11 is b, and a and b satisfy:
Figure BDA0003395054480000041
it should be noted that the amount of moisture in the air entering the interior of the motor is also related to the size of the cavity of the groove structure 12, and if the cavity of the groove structure 12 is too small, the moisture in the air is trapped too little, so that an ideal result cannot be obtained; if the cavity of the groove structure 12 is too large, the contact area between the cover body 10 and the sealing gasket 30 will be too small, the mechanical strength of the contact portion of the cover body 10 and the sealing gasket 30 will be reduced, and the cover body is easily damaged under the action of the locking stress of the screw 50, and thus a good sealing effect cannot be achieved.
Of the present embodimentThe groove structure 12 is a cube with a side length of a, the thickness of the first side surface 11 of the cover body 10 is b, and the side length a of the groove structure 12 and the thickness b of the cover body 10 satisfy
Figure BDA0003395054480000051
The sealing effect of the sealing cover is effectively guaranteed.
In some embodiments, the area of the first side surface 11 is S, and when N groove structures 12 are disposed on the first side surface 11, the area of the N groove structures 12 is Na2(ii) a The distribution density ρ of the groove structures 12 on the first side 11 satisfies:
Figure BDA0003395054480000052
it should be noted that how much moisture in the air enters the interior of the motor is also related to the distribution of the groove structures 12. When the groove structures 12 on the first side 11 are distributed sparsely, the moisture in the air is trapped too little, and thus the ideal result cannot be obtained; when the groove structures 12 on the first side 11 are distributed densely, the contact area between the cover body 10 and the sealing gasket 30 is too small, the mechanical strength of the contact portion of the cover body 10 and the sealing gasket 30 is reduced, and the cover body is easily damaged under the action of the locking stress of the screws 50, and thus a good sealing effect cannot be achieved.
The distribution density ρ of the groove structure 12 of the present embodiment on the first side 11 satisfies:
Figure BDA0003395054480000053
in some embodiments, ρ is
Figure BDA0003395054480000054
The range takes values.
The distribution density ρ of the groove structure 12 on the first side 11 of the present embodiment is
Figure BDA0003395054480000055
The range value can effectively ensure the sealing effect of the sealing cover.
Of course, in order to make the first side surface 11 more uniformly stressed when the cover body 10 is installed, the N groove structures 12 may be uniformly distributed on the first side surface 11.
In some embodiments, when the cover body 10 is an outlet cover, the outlet cover is disposed at the outlet of the cable 40 of the sealed component, and an outlet for leading out the cable 40 to the outside of the outlet cover is further disposed on the outlet cover.
In some embodiments, a sealing gasket 30 is disposed between the sealed component and the cover body 10, and the sealing gasket 30 is disposed in close contact with the first side surface 11, so as to improve the sealing effect.
The invention also provides a motor which comprises the cover body structure.
In some embodiments, the cover body 10 is fixed to the casing 20 by screws 50, and the sealing gasket 30 is disposed between the casing 20 and the cover body 10, so as to improve the sealing effect between the cover body 10 and the casing 20.
The invention also provides a compressor which comprises the motor.
The invention also provides an air conditioner which comprises the compressor.
It is easily understood by those skilled in the art that the above-described modes can be freely combined and 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 (11)

1. A cover structure, comprising: the motor cover comprises a cover body (10), wherein a cavity (13) is formed inside the cover body (10), an opening (14) communicated with the cavity (13) is formed in a first side face (11) of the cover body (10), at least part of the opening (14) is surrounded by the first side face (11), at least one sunken groove structure (12) is arranged on the first side face (11), and the first side face (11) can be matched and connected with a shell (20) of a motor.
2. Cover structure according to claim 1, characterized in that the structure of the groove structure (12) is a polyhedral, hemispherical or semi-ellipsoidal groove.
3. The cover structure according to claim 1, characterized in that the groove structure (12) is a groove of a cube with a side length a, the thickness at the first side (11) on the cover body (10) is b, and a and b satisfy:
Figure FDA0003395054470000011
4. a cover structure according to claim 3, wherein said first side surface (11) has an area S, and when N said groove structures (12) are provided on said first side surface (11), the area of N said groove structures (12) is Na2(ii) a The distribution density ρ of the groove structures (12) on the first side (11) satisfies:
Figure FDA0003395054470000012
5. the cover structure according to claim 4, wherein p is in
Figure FDA0003395054470000013
The range takes values.
6. The cover structure according to claim 1, wherein when the cover body (10) is an outlet cover, the outlet cover is disposed at an outlet of a cable (40) of the sealed component, and the outlet cover is further provided with an outlet for leading the cable (40) to an outside of the outlet cover.
7. The cover structure according to claim 1, wherein a gasket (30) is provided between the sealed member and the cover body (10), and the gasket (30) is attached to the first side surface (11).
8. An electrical machine comprising a cover structure according to any one of claims 1 to 7.
9. The machine according to claim 8, characterized by comprising a casing (20) and a sealing gasket (30), wherein the cover body (10) is fixed on the casing (20) by screws (50), and the sealing gasket (30) is arranged between the casing (20) and the cover body (10).
10. A compressor, characterized by comprising the motor of claim 8 or 9.
11. An air conditioner characterized by comprising the compressor of claim 10.
CN202111481561.4A 2021-12-06 2021-12-06 Cover body structure, motor, compressor and air conditioner Active CN114172311B (en)

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CN114172311B CN114172311B (en) 2023-05-23

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001097436A (en) * 1999-09-24 2001-04-10 Chuo Kagaku Co Ltd Packaging container
CN203965691U (en) * 2014-07-24 2014-11-26 东莞市亚美精密机械配件有限公司 A kind of long-acting combination sealing arrangement
JP2018023240A (en) * 2016-08-05 2018-02-08 株式会社日立産機システム Rotary electric machine and rotary electric machine terminal box
CN208241488U (en) * 2018-06-09 2018-12-14 蒋健 Waterproof line protecting box and motor
CN109104034A (en) * 2018-10-12 2018-12-28 珠海格力电器股份有限公司 Electrical apparatus device, motor and electrical apparatus of being qualified for next round of competitions
CN109327106A (en) * 2018-11-30 2019-02-12 珠海格力电器股份有限公司 Motor outlet box structure and motor thereof
CN109450180A (en) * 2018-12-27 2019-03-08 佛山市顺德区深研机电设备有限公司 A kind of projecting shaft servo motor preventing dew condensation phenomenon
CN209994193U (en) * 2019-06-11 2020-01-24 广东顺德腾浩电机有限公司 Motor with dampproofing effect
CN212572251U (en) * 2020-07-28 2021-02-19 成都金士力科技有限公司 Motor wire outlet cover and motor
CN212992105U (en) * 2020-09-24 2021-04-16 潍柴动力股份有限公司 Junction box and motor
CN213414699U (en) * 2020-09-02 2021-06-11 海南美乾包装制品有限公司 Novel packing box that fruit was used
CN213578817U (en) * 2020-10-27 2021-06-29 湖北成德换热设备有限公司 Novel seal structure of air cooler end cover
CN215009881U (en) * 2021-06-26 2021-12-03 金灵华 Junction box and motor

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001097436A (en) * 1999-09-24 2001-04-10 Chuo Kagaku Co Ltd Packaging container
CN203965691U (en) * 2014-07-24 2014-11-26 东莞市亚美精密机械配件有限公司 A kind of long-acting combination sealing arrangement
JP2018023240A (en) * 2016-08-05 2018-02-08 株式会社日立産機システム Rotary electric machine and rotary electric machine terminal box
CN208241488U (en) * 2018-06-09 2018-12-14 蒋健 Waterproof line protecting box and motor
CN109104034A (en) * 2018-10-12 2018-12-28 珠海格力电器股份有限公司 Electrical apparatus device, motor and electrical apparatus of being qualified for next round of competitions
CN109327106A (en) * 2018-11-30 2019-02-12 珠海格力电器股份有限公司 Motor outlet box structure and motor thereof
CN109450180A (en) * 2018-12-27 2019-03-08 佛山市顺德区深研机电设备有限公司 A kind of projecting shaft servo motor preventing dew condensation phenomenon
CN209994193U (en) * 2019-06-11 2020-01-24 广东顺德腾浩电机有限公司 Motor with dampproofing effect
CN212572251U (en) * 2020-07-28 2021-02-19 成都金士力科技有限公司 Motor wire outlet cover and motor
CN213414699U (en) * 2020-09-02 2021-06-11 海南美乾包装制品有限公司 Novel packing box that fruit was used
CN212992105U (en) * 2020-09-24 2021-04-16 潍柴动力股份有限公司 Junction box and motor
CN213578817U (en) * 2020-10-27 2021-06-29 湖北成德换热设备有限公司 Novel seal structure of air cooler end cover
CN215009881U (en) * 2021-06-26 2021-12-03 金灵华 Junction box and motor

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