CN207353971U - A kind of motor anti-dewing structure - Google Patents
A kind of motor anti-dewing structure Download PDFInfo
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- CN207353971U CN207353971U CN201721039161.7U CN201721039161U CN207353971U CN 207353971 U CN207353971 U CN 207353971U CN 201721039161 U CN201721039161 U CN 201721039161U CN 207353971 U CN207353971 U CN 207353971U
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- motor
- dewing
- thermal insulation
- insulation layer
- connection box
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Abstract
It the utility model is related to new energy field, provide a kind of motor anti-dewing structure, motor anti-dewing structure includes being internally provided with electric machine casing, the connection box for motor being arranged at the top of electric machine casing of coil, connected between the electric machine casing and connection box for motor by crossing line three-way hole, the top of the connection box for motor is equipped with thermal insulation layer or the connection box for motor is made of heat-barrier material.In motor operation, vapor rising can rise, and thermal insulation layer is arranged at the top of terminal box, motor internal temperature is set to be not much different with terminal box head temperature, so as to which water vapor condensation will not be made, the insulation of motor is not interfered with, solves the problems, such as that anti-dewing effect is poor in the prior art.
Description
Technical field
It the utility model is related to new-energy automobile field, and in particular to a kind of motor anti-dewing structure.
Background technology
New-energy automobile industry is developed rapidly, motor is as new energy due to its economy and environment friendly
The power source of source automobile, its reliability directly influence traffic safety.And the insulation performance of motor is motor reliability
Important indicator, motor insulation values are once less than setting, it will system dynamic occur and interrupt or motor phenomena such as burning.Electricity
Motivation is internally provided with coil, and terminal box is provided with the top of motor field frame, and electricity is driven for inputting high voltage cable
Machine rotates, and line three-way hole was provided between electric machine casing and connection box for motor.When driving, winding is passed through electric current
Temperature raises afterwards, and vapor in motor can be made to rise at motor connecting cartridge, by wiring through hole ascension to connector cover,
Since connector cover is contacted with the external world, temperature is not high, and vapor can liquefy directly at terminal box condense into dewdrop to the cold.Vehicle
If vibrating in the process of moving, dewdrop falls, and is entered by wiring hole in internal winding, also has part dewdrop to be scattered in height
On crimping, decline motor insulation resistance, reduce working life, influence the normal use and traffic safety of motor.
It is the structure diagram of motor in the prior art as shown in Figure 1.Operationally, machine winding 7 is powered motor
After generate heat, raise motor interior temperature, can volatilize in the vapor of motor interior, form heat steam, heat steam passes through
Cable-through hole 5 is entered in terminal box 4, and junction box cover plate 8 is contacted with the external world, and temperature is relatively low, if the vapor of heat reaches saturation journey
Degree, then condense on the relatively low junction box cover plate 8 of temperature and form droplet.
The prior art mainly by installing one-way ventilating valve 9 on junction box cover plate 8, passes through the heat steam of transpiration and breathes freely
Valve 9 is discharged in external environment, but there are the problem of for vent valve passed through vapor, the dust in external environment, which can be stained with, to be paid wet
On the vent valve of profit, reduce Air permenbility, air permeability effect declines, and vapor can still exist；If vent valve is blocked by dust, no
Vapor can be excluded in time to reduce condensation, thus have to timing replace, to ensure enough Air permenbilities, add maintenance into
This, anti-dewing effect is poor in the prior art on the whole.
Utility model content
The purpose of this utility model is to provide a kind of motor anti-dewing structure, to solve anti-dewing effect in the prior art
The problem of poor.
To achieve the above object, the utility model adopts the following technical solution：Technical solution 1：A kind of motor anti-dewing knot
Structure, including the electric machine casing of coil, the connection box for motor being arranged at the top of electric machine casing are internally provided with, the electric machine casing and electricity
Connected between machine terminal box by crossing line three-way hole, it is characterised in that：The top of the connection box for motor is equipped with thermal insulation layer or institute
Connection box for motor is stated to be made of heat-barrier material.Its advantage is：During using thermal insulation layer to make motor operation, internal temperature
It is little with junction box cover plate temperature difference, when motor internal vapor is entered in terminal box by cable-through hole, will not condense, and
It is to be in saturation state, water droplet will not be formed and be dropped on winding, ensure that motor insulating properties.
Technical solution 2：Motor anti-dewing structure according to technical solution 1, it is characterised in that：The thermal insulation layer is set
Inner surface or outer surface at the top of connection box for motor.Its advantage is：Thermal insulation layer is arranged on the interior table at the top of terminal box
Face or outer surface, the thermal insulation layer coefficient of heat conduction is low, can ensure the temperature difference of the temperature and motor internal at the top of terminal box
Less, vapor will not be made to run into condensation at the top of terminal box, improve anti-dewing effect.
Technical solution 3：Motor anti-dewing structure according to technical solution 2, it is characterised in that：The connection box for motor
The inner surface at top has cavity, and thermal insulation layer is arranged in cavity.Its advantage is：Reduce the redundancy knot of terminal box
Structure, is easily installed thermal insulation layer, and thermal insulation layer is installed on inside grooves, improves the effect of the reduction heat transfer of thermal insulation layer, ensure that
Too big change will not occur for the temperature of motor internal, improve anti-dewing effect.
Technical solution 4：Motor anti-dewing structure according to 1 ~ 3 any one of technical solution, it is characterised in that：It is described
Thermal insulation layer is rubber pad or bakelite.Its advantage is：Rubber or bakelite have the relatively low coefficient of heat conduction, transmit the energy of heat
Power is relatively low, ensure that the working characteristics of thermal insulation layer, and rubber or bakelite material are with anti-oxidant, anticorrosive and heat safe steady
It is qualitative.
Technical solution 5：Motor anti-dewing structure according to 1 ~ 3 any one of technical solution, it is characterised in that：It is described
Thermal insulation layer is fixed in terminal box by mechanical structure.Its advantage is：Thermal insulation layer, convenience pair are fixed by mechanical structure
Insulating layer material is replaced and overhauled.
Technical solution 6：Motor anti-dewing structure according to 1 ~ 3 any one of technical solution, it is characterised in that：It is described
Connection box for motor includes the head cover in the opening at the top of box body and box body, and the head cover, which is equipped with, to be used to seal with the top surface of box body
The sealing ring of cooperation.Its advantage is：Adding sealing effect can ensure during motor operation, heat transfer effect
Fruit reduces, and improves anti-dewing effect.Extraneous dust will not enter in terminal box and be combined with vapor at the same time, pollute winding, drop
Low insulation resistance.
Technical solution 7：Motor anti-dewing structure according to 1 ~ 3 any one of technical solution, it is characterised in that：It is described
The top of connection box for motor is equipped with one-way ventilating valve.Its advantage is：One-way ventilating valve can make transpiration vapor from
Motor internal is discharged into external environment, reduces the situation of vapor aggregation and improves anti-dewing effect.
Brief description of the drawings
Fig. 1 is electric motor structure of the prior art；
Fig. 2 is the assembling schematic diagram of the utility model；
Fig. 3 is 1 anti-dewing structure diagram of embodiment in the utility model；
Fig. 4 is 2 anti-dewing structure diagram of embodiment in the utility model；
Fig. 5 is 3 anti-dewing structure diagram of embodiment in the utility model；
Fig. 6 is 4 anti-dewing structure diagram of embodiment in the utility model；
In figure：1. flange；2. shaft；3. engine base；4. terminal box；5. cable-through hole；6. motor lead-out wire；7. machine winding；
8. junction box cover plate；81. connector cover shell；82. thermal insulation layer；9. one-way ventilating valve；10. high voltage cable water-proof nut set；11.
High voltage cable.
Embodiment
As Fig. 2 ~ 3 show the embodiment 1 of the utility model, the utility model is a kind of motor anti-dewing structure, including
Be internally provided with the electric machine casing of coil, the connection box for motor being arranged at the top of electric machine casing, electric machine casing and connection box for motor it
Between connected by crossing line three-way hole, it is by heat-insulated material that the top of the connection box for motor, which is equipped with thermal insulation layer or the connection box for motor,
Material is made.In the present embodiment, select on junction box cover plate and the form of thermal insulation layer is set.Wherein junction box cover plate 8, including wiring
Box lid shell 81 and thermal insulation layer 82, thermal insulation layer 82 are installed on the inside of connector cover shell 81, junction box cover plate 8 and terminal box 4
Releasable connection.High voltage cable 11 is entered in terminal box 4 by high voltage cable water-proof nut set 10, and the lead-out wire 6 of machine winding 7 is saturating
Cross in 5 thereto of cable-through hole, the heat steam in engine base is through 6 ascension of cable-through hole into terminal box 4.Wherein, thermal insulation layer
82 are installed on the inside of connector cover shell 81, and different materials can be selected according to different situations, if selection heat insulating coat,
The temperature range that heat insulating coat adapts to is high, can be directly processed in the inside of connector cover shell 81, when running one section
Between after, heat insulating coat failure, can directly be brushed, Reusability, process is simply efficient.If select thermal insulation plate such as rubber
Rubber cushion or bakelite, the good heat-insulation effect of thermal insulation plate, and extensive utilization, thermal insulation plate are fixed on by mechanical structure and connect
In wire box.It is also an option that installation vacuum insulation panel, thermal conductivity factor is extremely low, technology maturation, can also select aerogel blanket or receive
Heat-insulated soft felt of base etc., these plates, which are also felt, vibration damping, erosion-resisting function.Junction box cover plate 8 employs bolt company with terminal box 4
Connect, leave gap between the through hole and shank of bolt of 4 processing on junction box cover plate 8 and terminal box, through hole requirement on machining accuracy is low, structure
Simply, it is convenient to mount and dismount, in vibration processes, bolt can be by axial force, radial shear power.Colleague, in junction box cover plate 8 and wiring
When box 4 connects, using rubber seal, it can ensure during electric motor operation, extraneous dust will not enter in terminal box
Combined with vapor, pollute winding, reduce insulation resistance.And elastomeric material has anti-oxidant, heat safe job stability.
In motor running, machine winding 7 is generated heat after powered up, raises the temperature of motor internal, exists in motor
Internal moisture, which is heated, is volatilized into vapor, is entered by cable-through hole 5 in terminal box 4, since the presence of thermal insulation layer 82, heat are right
Spread the heat led to greatly reduce so that the temperature of connector cover shell 81 is suitable with motor internal temperature, in motor operation mistake
After a period of time, vapor can be gathered constantly, reach degree of saturation, but in the suitable environment of temperature, vapor can not be put
Heat, will not be condensed into droplet, the problem of avoiding condensation, simultaneously because good heat-insulation effect, in motor internal, moisture can not adhere to
On insulating materials surface, the insulation resistance of the electrical equipment in terminal box will not change, and not have leakage current, Wu Fazao
Into insulation breakdown, traffic safety ensure that.
Embodiment 2：As shown in figure 4, differed only in embodiment 1：Whole junction box cover plate 8 uses heat-barrier material system
Into thermal insulation layer is junction box cover plate.
Embodiment 3：As shown in figure 5, differed only in embodiment 1：Thermal insulation layer 82 has been arranged on outside connector cover
81 top of shell, makes thermal insulation layer 82 be in 4 outer surface of terminal box.
Embodiment 4：As shown in fig. 6, differed only in embodiment 1：It is provided with connector cover shell 81 unidirectional
Vent valve 9, for discharging the vapor inside engine base 3.
In other embodiments, one-way ventilating valve and different types of connector cover can also be arranged on connection box for motor
Plate coordinates；, can also be heat-insulated on inner cavity top or outer surface increase when connector cover harden structure is the shell with inner cavity
Layer, alternatively, it is also possible to which the junction box cover plate for wrapping up junction box wire rod can be covered to make using heat-barrier material.
Claims (7)
1. a kind of motor anti-dewing structure, including it is internally provided with the electric machine casing of coil, the motor being arranged at the top of electric machine casing
Terminal box, is connected between the electric machine casing and connection box for motor by crossing line three-way hole, it is characterised in that：The connection box for motor
Top be equipped with thermal insulation layer or the connection box for motor and be made of heat-barrier material.
2. motor anti-dewing structure according to claim 1, it is characterised in that：The thermal insulation layer is arranged on connection box for motor
The inner surface at top or outer surface.
3. motor anti-dewing structure according to claim 2, it is characterised in that：Inner surface at the top of the connection box for motor
With cavity, thermal insulation layer is arranged in cavity.
4. the motor anti-dewing structure according to claim 1 ~ 3 any one, it is characterised in that：The thermal insulation layer is rubber
Pad or bakelite.
5. the motor anti-dewing structure according to claim 1 ~ 3 any one, it is characterised in that：The thermal insulation layer passes through machine
Tool structure is fixed in terminal box.
6. the motor anti-dewing structure according to claim 1 ~ 3 any one, it is characterised in that：The connection box for motor bag
The head cover in the opening at the top of box body and box body is included, the head cover is equipped with the sealing for being used for coordinating with the sealing of the top surface of box body
Circle.
7. the motor anti-dewing structure according to claim 1 ~ 3 any one, it is characterised in that：The connection box for motor
Top is equipped with one-way ventilating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721039161.7U CN207353971U (en) | 2017-08-18 | 2017-08-18 | A kind of motor anti-dewing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721039161.7U CN207353971U (en) | 2017-08-18 | 2017-08-18 | A kind of motor anti-dewing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207353971U true CN207353971U (en) | 2018-05-11 |
Family
ID=62411604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721039161.7U Active CN207353971U (en) | 2017-08-18 | 2017-08-18 | A kind of motor anti-dewing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207353971U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112152366A (en) * | 2020-09-07 | 2020-12-29 | 凯博易控车辆科技(苏州)股份有限公司 | Prevent condensation motor |
| CN113708551A (en) * | 2020-05-21 | 2021-11-26 | 中车株洲电力机车研究所有限公司 | Motor with prevent condensation and dampproofing function |
-
2017
- 2017-08-18 CN CN201721039161.7U patent/CN207353971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708551A (en) * | 2020-05-21 | 2021-11-26 | 中车株洲电力机车研究所有限公司 | Motor with prevent condensation and dampproofing function |
| CN112152366A (en) * | 2020-09-07 | 2020-12-29 | 凯博易控车辆科技(苏州)股份有限公司 | Prevent condensation motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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| CP03 | Change of name, title or address |