CN210093009U - Condensed water prevention structure of motor - Google Patents
Condensed water prevention structure of motor Download PDFInfo
- Publication number
- CN210093009U CN210093009U CN201921335813.0U CN201921335813U CN210093009U CN 210093009 U CN210093009 U CN 210093009U CN 201921335813 U CN201921335813 U CN 201921335813U CN 210093009 U CN210093009 U CN 210093009U
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- motor
- terminal box
- motor casing
- output shaft
- inner cavity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a motor anti-condensation water structure. It includes motor casing, motor output shaft and terminal box, in motor casing was arranged in to the motor output shaft, motor casing extended out to the motor output shaft tip, the motor casing outside was located to the terminal box, and terminal box inner chamber and motor casing inner chamber intercommunication, it is sealed through the sealing member between motor output shaft and the motor casing to make the waterproof grade of motor casing be the IP68 grade, the terminal box inner chamber is equipped with the drier, the drier is used for absorbing the steam of motor casing inner chamber, terminal box inner chamber. The utility model relates to a rationally, the drier is passed through in the motor housing, in the terminal box and is absorbed, ensures inside air drying, and the motor winding generates heat and can only generate dry hot-air, can not generate the comdenstion water after the cooling of dry hot-air, and the protection motor part improves insulating properties, and simultaneously, motor casing IP 68's waterproof grade prevents that outside steam from getting into in the motor housing, makes keeping dry in motor housing and the terminal box.
Description
Technical Field
The utility model relates to the technical field of motors, specifically relate to a motor anti-condensation water structure.
Background
The existing new energy automobile motor has the problem of condensate water, and most of the existing new energy automobile motors have poor anti-condensation effect or have no anti-condensation design.
The reason for the condensed water is that under the weather conditions of day and night temperature difference and large air humidity, the motor starts to operate from standing, the motor winding generates heat to generate a large amount of humid hot air, at the moment, the temperature of a shell of the motor, such as a junction box, and a three-phase power line on the junction box is lower, and the humid hot air caused by the heat generation of the motor winding can form the condensed water on the surface of the humid hot air when contacting low-temperature components such as the junction box, the power line and the like.
The condensate water can greatly reduce the insulation performance of the motor, and the motor is prevented from insulation failure, so that the automobile cannot run. The condensed water generated in the motor can corrode parts of the motor, and even can cause short circuit of the motor in severe cases.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an inside no humid air of motor to prevent motor condensed water structure that the comdenstion water generated.
The purpose of the utility model is realized like this.
The utility model provides a motor anti-condensation water structure, includes motor casing, motor output shaft and terminal box, and in the motor casing was arranged in to the motor output shaft, motor casing extended out to motor output shaft tip, the motor casing outside was located to the terminal box, and terminal box inner chamber and motor casing inner chamber intercommunication, its characterized in that: the motor output shaft and the motor shell are sealed through a sealing element, so that the waterproof grade of the motor shell is IP68 grade, and the inner cavity of the junction box and/or the inner cavity of the motor shell are/is provided with drying agents which are used for absorbing water vapor in the inner cavity of the motor shell and the inner cavity of the junction box.
The technical scheme can be further perfected as follows.
More specifically, the sealing member is sealed for skeleton oil blanket and terminal surface oil blanket, and the terminal surface oil blanket sets up in the skeleton oil blanket outside. The end face oil seal resists the erosion of silt, and the skeleton oil seal blocks moist air outside the motor.
More specifically, a partition plate is arranged between the inner cavity of the junction box and the inner cavity of the motor shell, a lead through hole is formed in the partition plate, and the drying agent is arranged in the inner cavity of the junction box and close to the lead through hole. In the steam that stays in the motor during equipment gets into the terminal box through the clearance between winding wire and the wire through-hole, the baffle avoids steam quick, get into the terminal box in a large number, also avoids in the terminal box steam quick, get into the motor in a large number, and the drier can direct contact get into the steam of terminal box, improves the dehumidification effect, and in addition, the motor inner space is less, and structural design is complicated, is unfavorable for placing the drier, and in the terminal box was arranged in to the drier, the easy installation, the change of being convenient for.
More specifically, the lead through hole is arranged at the upper part of the partition plate to prevent the desiccant and the desiccant after water absorption from passing through.
More specifically, an airflow channel is formed from the wire through hole to the junction box, the drying agent is arranged along the direction of the airflow channel, and the drying agent is located below the airflow channel, so that the water vapor adsorption efficiency is improved.
The utility model relates to a rationally, the drier is passed through in the motor housing, in the terminal box and is absorbed, ensures inside air drying, and the motor winding generates heat and can only generate dry hot-air, can not generate the comdenstion water after the cooling of dry hot-air, protects the motor part, improves insulating properties, and simultaneously, the waterproof grade of motor casing is IP68, prevents that outside steam from getting into in the motor housing, makes keeping dry in motor casing and the terminal box.
Drawings
FIG. 1 is a partial cross-sectional view of an embodiment.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
in the first embodiment, as shown in fig. 1, a motor condensed water prevention structure includes a motor casing 1, a motor output shaft 2 and a junction box 3, the motor output shaft 2 is arranged in the motor casing 1, one end of the motor output shaft 2 extends out of the motor casing 1, the motor output shaft 2 and the motor casing 1 are sealed through a framework oil seal 4 and an end face oil seal 5, and the end face oil seal 5 is arranged outside the framework oil seal 4, so that the waterproof grade in the motor casing 1 is IP68 grade.
The terminal box 3 is arranged on the outer side of the motor shell 1, the inner cavity of the terminal box 3 is communicated with the inner cavity of the motor shell 1, a partition plate 6 is arranged between the inner cavity of the terminal box 3 and the inner cavity of the motor shell 1, a wire through hole 7 is formed in the upper portion of the partition plate 6, an air flow channel 8 is formed from the wire through hole 7 to a wiring terminal (preferably a wiring plate 31) in the terminal box 3, the drying agent 9 is arranged in the inner cavity of the terminal box 3 and close to the wire through hole 7, the drying agent 9 is arranged along the direction of the air.
After the motor assembly is completed, the air of the motor shell 1 has certain water vapor, the motor runs, the winding generates heat, the air in the motor is heated into humid hot air, the humid hot air rises to enter the junction box 3 through the gap between the lead through hole 7 and the lead of the winding, the humid hot air is continuously contacted with the drying agent 9, the water vapor in the humid hot air is absorbed by the drying agent 9, the humid hot air becomes dry hot air, the dry hot air is connected with the wiring terminal in the junction box 3, the power line is contacted and cooled, and then condensed water cannot be formed, so that the purpose of avoiding the generation of the condensed water is achieved.
Claims (5)
1. The utility model provides a motor anti-condensation water structure, includes motor casing, motor output shaft and terminal box, and in the motor casing was arranged in to the motor output shaft, motor casing extended out to motor output shaft tip, the motor casing outside was located to the terminal box, and terminal box inner chamber and motor casing inner chamber intercommunication, its characterized in that: the motor output shaft and the motor shell are sealed through a sealing element, so that the waterproof grade of the motor shell is IP68 grade, and the inner cavity of the junction box and/or the inner cavity of the motor shell are/is provided with drying agents which are used for absorbing water vapor in the inner cavity of the motor shell and the inner cavity of the junction box.
2. The motor condensed water preventing structure of claim 1, wherein: the sealing element is sealed for skeleton oil blanket and terminal surface oil blanket, and the terminal surface oil blanket sets up in the skeleton oil blanket outside.
3. The motor condensed water preventing structure of claim 1, wherein: a partition plate is arranged between the inner cavity of the junction box and the inner cavity of the motor shell and provided with a lead through hole, and the drying agent is arranged in the inner cavity of the junction box and close to the lead through hole.
4. The motor condensed water preventing structure of claim 3, wherein: the lead through hole is arranged at the upper part of the partition plate.
5. The motor condensed water preventing structure of claim 3, wherein: an air flow channel is formed from the wire through hole to the junction box, the drying agent is arranged along the direction of the air flow channel, and the drying agent is positioned below the air flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921335813.0U CN210093009U (en) | 2019-08-17 | 2019-08-17 | Condensed water prevention structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921335813.0U CN210093009U (en) | 2019-08-17 | 2019-08-17 | Condensed water prevention structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210093009U true CN210093009U (en) | 2020-02-18 |
Family
ID=69486075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921335813.0U Active CN210093009U (en) | 2019-08-17 | 2019-08-17 | Condensed water prevention structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210093009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450668A (en) * | 2020-03-06 | 2020-07-28 | 浙江零跑科技有限公司 | Condensation structure is prevented to electricity drive power assembly |
-
2019
- 2019-08-17 CN CN201921335813.0U patent/CN210093009U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111450668A (en) * | 2020-03-06 | 2020-07-28 | 浙江零跑科技有限公司 | Condensation structure is prevented to electricity drive power assembly |
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