CN211321100U - Novel motor junction box, motor and intelligent household appliance - Google Patents
Novel motor junction box, motor and intelligent household appliance Download PDFInfo
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- CN211321100U CN211321100U CN201921913501.3U CN201921913501U CN211321100U CN 211321100 U CN211321100 U CN 211321100U CN 201921913501 U CN201921913501 U CN 201921913501U CN 211321100 U CN211321100 U CN 211321100U
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Abstract
The utility model provides a novel motor terminal box, motor and intelligent household electrical appliances, including semi-closed box structure and box body, semi-closed box structure sets up in the box body, semi-closed box structure includes main part, supporting framework and air vent, supporting framework with the air vent all sets up on the outer wall of main part, supporting framework supports between main part outer wall and box body internal face, the box body bottom still is provided with out water mechanism. Through increasing semi-closed box structure and play water mechanism on original motor terminal box for condensation in the terminal box takes place between semi-closed box structure outer wall face and box internal face, and the drop of water that forms that condenses does not contact with other components in the box body, has avoided the insulating destruction of condensation to motor inner line and corruption, and the play water mechanism of increase can regularly carry out the evacuation to the water that condenses in the box body and handles, reduces motor inside air humidity, improves the security and the reliability of motor.
Description
Technical Field
The utility model relates to the technical field of motors, concretely relates to novel motor terminal box, motor and intelligent household electrical appliances.
Background
In the face of increasingly severe problems of environmental pollution, resource shortage and the like, new energy automobiles become the direction of future development of the current automobile industry. The driving motor system is one of three large core components of the new energy automobile, and the reliability of the driving motor directly influences the driving safety of the automobile.
The air mainly comprises dry air, water vapor and dust. Generally, humidity refers to the content of water vapor in air and can be expressed as relative humidity, absolute humidity and saturated humidity. Saturation humidity is the maximum limit of water vapor that a unit volume of air can contain under certain humidity conditions; absolute humidity is the mass of water vapor in a volume of air; relative humidity is the ratio of absolute humidity to saturated humidity. The saturation humidity is related to the air temperature, and the higher the temperature, the more moisture is contained. If the absolute humidity of the air is kept unchanged, the temperature of the air is reduced, the humidity in the air is saturated when the temperature is reduced to a certain value, the temperature is continuously reduced, the moisture in the air is separated out, and the phenomenon that liquid water is separated out is called condensation. The dew point temperature is a temperature at which the humidity of air can reach 100% with the moisture content and atmospheric pressure kept constant.
The condensation phenomenon mainly occurs in the following two cases:
(1) in the temperature rising stage, the surface temperature of the shell is lower than the ambient temperature in the temperature rising process, and when air on the outer wall surface of the shell meets the surface of an object with the temperature lower than the dew point temperature, water vapor is condensed on the outer wall of the shell to form condensation;
(2) appear in the cooling stage, the external environment is the cooling down earlier, so shells inner wall is lower than inside air temperature, if shells inner wall temperature when reaching inside air's dew point temperature, shells inner wall will form the condensation.
When the driving motor operates, the stator winding is connected with three-phase alternating current, the temperature inside the motor rises, water vapor inside the motor can rise to the junction box, the temperature drops fast due to the contact of the junction box and the outside, and the water vapor can be liquefied and condensed into dew on the inner wall of the junction box when meeting cold. If the vehicle is in the in-process that traveles vibration, the dew can fall, flows into inside winding through the wiring hole in, and partial dew scatters on the high-tension line, makes driving motor's insulation resistance descend, has reduced working life, influences the normal use and the driving safety of motor.
As shown in fig. 1 and 2, a schematic view of a junction box structure of a conventional driving motor, a junction box cover plate 6 is fixed by screws, so that a closed space is formed inside a box body 1, when a motor is in an operation process, the internal temperature rises, water vapor inside the motor can volatilize to form heat vapor, the heat vapor enters the box body 1 through an original outlet 3, a junction box outer wall 4 is in contact with the outside, the temperature of an inner wall 8 of the junction box is faster reduced than that of the air inside the junction box, and when the temperature of an inner wall 5 of the junction box is reduced to a dew point temperature, the surface of the inner wall 5 of the junction box is.
For the problem of solving motor terminal box inner wall condensation, prior art is mostly through outer wall spraying insulating layer or anti-corrosion coating in the motor casing, perhaps increases the heat insulating mattress at the terminal box inner wall and eliminates heat-conduction difference, reduces the inside condensation of motor, the normal operating of guarantee motor, increase of service life. However, such an approach may increase the difficulty of the motor production process and increase the motor manufacturing cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel motor terminal box, through add semi-closed box structure and play water mechanism at original motor terminal box, the condensation that produces in making the terminal box can not contact the inner line, has avoided the condensation to insulating destruction of transmission line and corruption, improves driving motor's reliability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a novel motor terminal box, includes semi-closed box structure and box body, semi-closed box structure sets up in the box body, semi-closed box structure includes main part, supporting framework and air vent, supporting framework with the air vent all sets up on the outer wall of main part, supporting framework supports between main part outer wall and box body internal face, the box body bottom still is provided with out water mechanism. Through increasing semi-closed box structure and play water mechanism on original motor terminal box for condensation in the terminal box takes place between semi-closed box structure outer wall face and box internal face, and the drop of water that forms that condenses does not contact with other components in the box body, has avoided the insulating destruction of condensation to motor inner line and corruption, and the play water mechanism of increase can regularly carry out the evacuation to the water that condenses in the box body and handles, reduces motor inside air humidity, improves the security and the reliability of motor.
Furthermore, a notch is further formed in the outer wall surface of the main body and is arranged on the supporting framework. The breach size is according to supporting skeleton length and box body size design for the liquid that each face condensation of box body formed flows through the breach, hoards to the terminal box bottom surface, discharges ponding through water mechanism at last, has guaranteed on the one hand that the liquid that the condensation formed can not stop for a long time on the box body surface, and on the other hand has guaranteed the speed that liquid flows, has guaranteed the safety of box body inner line.
Furthermore, the outer wall surface of the main body is also provided with a wire inlet and a wire outlet, the edge of the wire inlet is provided with a first protrusion, and the edge of the wire outlet is provided with a second protrusion. The wire inlet is used for the access of electric wire, and the wire outlet is used for the takeout of electric wire, and first protrusion and second protrusion are used for guaranteeing the sealed of electric wire to and play the fixed action of location.
Further, still the cover is equipped with the apron on the main part, the apron with the main part is detachable construction. The cover plate is also provided with a supporting framework and an air vent, so that liquid flow is facilitated, and the designed detachable mechanism can be conveniently detached for maintenance, element replacement and other operations.
Furthermore, the water outlet mechanism is specifically a bolt, and the bolt is provided with a plurality of bolts at the bottom of the box body. The bolt makes things convenient for the manual drainage of operating personnel, and the position of the quantity of bolt can set up according to the terminal box condition of reality to reach better drainage effect.
Further, the vent hole is of a conical structure. When wind flows from the large opening of the conical vent hole to the end of the small opening, the air is released from the small opening after being extruded, so that the air can be regarded as small throttling expansion, and the air temperature can be reduced. In the diffusion process of air from inside to outside, the air is released by pressure, the released heat can be used for increasing the temperature of the semi-closed box-type structure, and the condensation phenomenon on the inner wall of the semi-closed box-type structure is avoided
Furthermore, the box body is provided with a first concave station with the size matched with the first convex position, and the box body is provided with a second concave station with the size matched with the second convex position. The first concave station is installed in a matched mode with the first protrusion, and the second concave station is installed in a matched mode with the second protrusion, so that the semi-closed box type structure is stably assembled with the box body.
Furthermore, the supporting framework is made of a material with high thermal conductivity. Select for use high thermal conductivity's material, the support chassis that takes itself makes this structure except the contact site of support chassis and box body, does not have other contact surfaces with the box body inner wall, has guaranteed that this semi-closed box structure temperature keeps unanimous with the inside temperature of motor, makes the condensation take place between semi-closed box structure outer wall and box body inner wall, guarantees that the dewdrop can not lead to the fact the influence to the insulation of motor high-voltage line, the inside winding of motor.
A motor comprises a motor junction box, and the motor junction box is specifically a novel motor junction box as described in any one of the above.
The utility model provides an air conditioner, includes outer machine and the machine, all be provided with the motor on outer machine and the interior machine, be provided with the motor terminal box on the motor, the motor terminal box specifically is as above arbitrary novel motor terminal box.
The utility model provides an intelligent household electrical appliance, includes the motor, be provided with the motor terminal box on the motor, the motor terminal box specifically is as above arbitrary any one novel motor terminal box.
The utility model provides a pair of novel motor terminal box, motor and intelligent household electrical appliances's beneficial effect lies in: through increasing semi-closed box structure and play water mechanism on original motor terminal box for condensation in the terminal box takes place between semi-closed box structure outer wall face and box internal face, and the drop of water that forms that condenses does not contact with other components in the box body, has avoided the insulating destruction of condensation to motor inner line and corruption, and the play water mechanism of increase can regularly carry out the evacuation to the water that condenses in the box body and handles, reduces motor inside air humidity, improves the security and the reliability of motor.
Drawings
FIG. 1 is a top view of an original junction box structure of a motor;
FIG. 2 is a sectional view of an original junction box structure of a motor;
FIG. 3 is a top view of the semi-enclosed box structure of the present invention;
fig. 4 is an axonometric view a of the semi-closed box structure of the present invention;
fig. 5 is an axonometric view B of the semi-closed box structure of the present invention;
FIG. 6 is a schematic view of the cover plate structure of the present invention;
FIG. 7 is a schematic view of the assembly of the semi-enclosed box structure of the present invention;
FIG. 8 is a schematic view of the structure of the vent hole of the present invention;
fig. 9 is a schematic view of the general structure of the junction box of the motor of the present invention;
fig. 10 is a sectional view of the overall structure of the motor junction box of the present invention.
In the figure: 1. a box body; 2. screw holes; 3. an original outlet; 4. a junction box is arranged outside; 5. the inner wall of the junction box; 6. a junction box cover plate; 7. a power line inlet; 8. the inner wall of the cover plate of the junction box; 9. a semi-enclosed box structure; 10. an outlet; 11. a support framework; 12. a second protrusion; 13. a vent hole; 14. a wire inlet; 15. a notch; 16. a first protrusion; 17. a bolt; 18. an outer wall surface of the semi-closed box structure; 19. a first recessed land; 20. a second recessed land.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step are within the scope of the present invention.
Please refer to fig. 1 to 10.
Example 1: a novel motor junction box.
The utility model provides a novel motor terminal box, includes semi-closed box structure 9 and box body 1, semi-closed box structure 9 sets up in box body 1, semi-closed box structure 9 includes main part 21, supporting framework 11 and air vent 13, supporting framework 11 with air vent 13 all sets up on the outer wall of main part 21, supporting framework 11 supports between main part 21 outer wall and 1 internal face of box body, 1 bottom of box body still is provided with out water mechanism, it specifically is bolt 17 to go out water mechanism.
The supporting framework 11 arranged on the wall surface outside the main body 21 is used for reducing the contact area between the outer wall surface 18 of the semi-closed box type structure and the inner wall surface of the box body 1, and the supporting framework 11 is made of a high-heat-conductivity material, so that the temperature of the outer wall surface 18 of the semi-closed box type structure is basically consistent with that of the air inside the box body 1, condensation occurs between the outer wall surface 18 of the semi-closed box type structure and the inner wall surface of the box body 1, and corrosion and damage of the condensation to a power transmission line.
Supporting framework 11 is guaranteeing to support under the prerequisite of semi-enclosed box structure 9 reliably, and the area of contact between supporting framework 11 and the 1 inner wall of box body is as little as possible, reduces the heat through supporting framework 11 transmission, guarantees that semi-enclosed box structure 9 is unanimous basically with the inside air temperature of box body 1.
The semi-closed box type structure 9 is provided with a first protrusion 16 arranged on the edge of a wire inlet 14, a second protrusion 12 arranged on the edge of a wire outlet 10, and a first concave platform 19 and a second concave platform 20 which are arranged at corresponding positions of the box body 1, wherein the first protrusion 16 is matched with the first concave platform 19 during installation, and the second protrusion 12 is matched with the second concave platform 20, so that dew is prevented from contacting with a line.
By utilizing the throttling expansion effect, a plurality of vent holes 13 with small outside and large inside are arranged in a proper area of the semi-closed box type structure 9, the temperature of the air in the semi-closed box type structure 9 and the air in the box body 1 is basically consistent, a small amount of condensation formed in the semi-closed box type structure 9 can be discharged, and the arrangement mode of the vent holes 13 is convenient for the discharge of the condensation while the good ventilation function is achieved.
A gap 15 is formed in the supporting framework 11, the size and the position of the gap 15 are determined according to the length of the supporting framework 11 and the size of the box body 1, so that liquid formed by condensation on each surface of the box body 1 flows out through the gap 15 and is stored on the bottom surface of the box body 1, and accumulated water is discharged through a bolt 17 arranged on the bottom surface of the box body 1.
The external shape structure of the semi-closed box structure 9 should be close to the internal shape of the box body 1, and on the basis of ensuring that a sufficient air gap exists between the semi-closed box structure and the box body, the internal space of the semi-closed box structure 9 is made as large as possible so as to keep a sufficient electrical safety distance.
Example 2: an electric machine.
A motor comprising a motor junction box, in particular a novel motor junction box as described in embodiment 1.
Example 3: an air conditioner.
The utility model provides an air conditioner, includes outer machine and the machine, all be provided with the motor on outer machine and the interior machine, be provided with the motor terminal box on the motor, the motor terminal box specifically is as embodiment 1 novel motor terminal box.
Example 4: an intelligent household appliance.
The utility model provides an intelligent household appliance, includes the motor, be provided with the motor terminal box on the motor, the motor terminal box specifically is as embodiment 1 novel motor terminal box.
The above description is a preferred embodiment of the present invention, but the present invention should not be limited to the disclosure of the embodiment and the accompanying drawings, and therefore, all equivalents and modifications that can be accomplished without departing from the spirit of the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a novel motor terminal box, a serial communication port, includes semi-closed box structure and box body, semi-closed box structure sets up in the box body, semi-closed box structure includes main part, supporting framework and air vent, supporting framework with the air vent all sets up on the outer wall of main part, supporting framework supports between main part outer wall and box body internal face, the box body bottom still is provided with out water mechanism.
2. The novel motor junction box of claim 1, wherein a notch is further formed in the outer wall surface of the main body, and the notch is formed in the supporting framework.
3. The novel motor junction box of claim 1, wherein the outer wall surface of the main body is further provided with a wire inlet and a wire outlet, the edge of the wire inlet is provided with a first protrusion, and the edge of the wire outlet is provided with a second protrusion.
4. The novel motor junction box of claim 1, wherein a cover plate is further sleeved on the main body, and the cover plate and the main body are of detachable structures.
5. The novel motor junction box of claim 1, wherein the water outlet mechanism is embodied as a bolt, and a plurality of bolts are arranged at the bottom of the box body.
6. The novel motor junction box of claim 1, wherein said vent is embodied as a conical structure.
7. The novel motor junction box of claim 3, wherein the box body is provided with a first concave platform with a matched size corresponding to the first protruding position, and the box body is provided with a second concave platform with a matched size corresponding to the second protruding position.
8. An electric machine comprising a motor junction box, characterized in that the motor junction box is embodied as a novel motor junction box according to any one of claims 1 to 7.
9. An intelligent household appliance, comprising a motor, wherein the motor is provided with a motor junction box, and the motor junction box is the novel motor junction box as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913501.3U CN211321100U (en) | 2019-11-07 | 2019-11-07 | Novel motor junction box, motor and intelligent household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913501.3U CN211321100U (en) | 2019-11-07 | 2019-11-07 | Novel motor junction box, motor and intelligent household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211321100U true CN211321100U (en) | 2020-08-21 |
Family
ID=72081992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921913501.3U Active CN211321100U (en) | 2019-11-07 | 2019-11-07 | Novel motor junction box, motor and intelligent household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211321100U (en) |
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2019
- 2019-11-07 CN CN201921913501.3U patent/CN211321100U/en active Active
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