CN212412920U - New energy automobile and prevent condensation motor thereof - Google Patents

Abstract

The utility model discloses a prevent condensation motor, including motor main part and terminal box (4) that have wire nose (7), its characterized in that, the surface parcel of wire nose (7) has heat preservation insulating layer (8). The heat-insulation layer is additionally arranged on the outer surface of the wire nose, so that the wire nose has the heat-insulation effect, the problem of rapid cooling of the wire nose is solved, and the condensation phenomenon is reduced. Furthermore, the utility model also discloses a new energy automobile of having above-mentioned condensation motor of preventing.

Description

New energy automobile and prevent condensation motor thereof

Technical Field

The utility model relates to a new energy automobile's technical field, in particular to new energy automobile and prevent condensation motor thereof.

Background

The new energy automobile has great significance for protecting the environment due to the advantage of emission. The driving motor is used as a core component of the new energy automobile, and the reliability of the driving motor is a key index of the new energy automobile. Under the environment of high humidity of the external world, the temperature change can be produced before and after the motor works, because the cooling rate is different at each position in the motor, when the fastest position of cooling reaches dew point temperature, the steam in the air can be separated out and attached to the place, namely the condensation phenomenon generally known, and the condensation can influence the insulating property of the motor. Generally, after the insulation resistance value is reduced, the vehicle can report faults frequently, and in severe cases, the insulation performance of the motor is reduced permanently, and finally, the motor is burnt and scrapped.

The condensation water is easy to condense on the inner wall of the junction box and the exposed copper nose of the high-voltage wire harness, because the junction box is far away from a heating source and is fast in heat exchange with the outside, the copper nose positioned in the junction box is the only exposed part in the high-voltage wire harness, and the temperature is also fast reduced due to the lack of the wrapping heat preservation of an insulating material. Water on the inner wall of the junction box is easy to drip onto the copper nose and the high-voltage wire harness after accumulating, the creepage distance is reduced, electric leakage and short circuit are caused, and even the insulation performance of the motor is reduced.

Therefore, how to provide a motor capable of preventing condensation and reducing the phenomenon of condensation is a technical problem to be solved urgently in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a prevent condensation motor reduces the phenomenon of condensation. In addition still utility model provides a new energy automobile who has above-mentioned condensation motor of preventing still provides.

In order to achieve the above object, the utility model provides a following technical scheme:

the anti-condensation motor comprises a motor main body and a junction box with a wire nose, wherein the outer surface of the wire nose is wrapped with a heat insulation layer.

Preferably, in the anti-condensation motor, the heat insulation layer is a fluororubber heat-shrinkable film adhered to the surface of the wire nose or a BBS foaming agent layer smeared on the surface of the wire nose.

Preferably, in the above-mentioned condensation prevention motor, the motor further includes a protective cover provided on the motor main body for preventing water from entering the oil seal of the output shaft.

Preferably, in the above-mentioned anti-condensation motor, the protective cover covers an outer side of the oil seal, and a gap is provided between the protective cover and the output shaft. .

Preferably, in the above anti-condensation motor, the motor main body has a vent hole, and a check valve that is communicated with the outside from the motor main body in a one-way manner is disposed at the vent hole.

Preferably, in the above-described anti-condensation motor, the vent hole is located on an upper surface of the motor main body.

Preferably, the anti-condensation motor further comprises a condensation dredging structure arranged in the junction box and used for absorbing water.

Preferably, in the above anti-condensation motor, the condensation leading structure is made of foam bonded to an inner wall of the junction box.

Preferably, in the above-mentioned anti-condensation motor, the condensation guiding structure is mounted on an upper surface of an inner wall of the junction box.

The new energy automobile comprises an anti-condensation motor, wherein the anti-condensation motor is any one of the anti-condensation motors.

The utility model provides a pair of prevent condensation motor, online nose surface parcel has the heat preservation insulating layer. The heat-insulation layer is additionally arranged on the outer surface of the wire nose, so that the wire nose has the heat-insulation effect, the problem of rapid cooling of the wire nose is solved, and the condensation phenomenon is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front sectional view of an anti-condensation motor disclosed in an embodiment of the present invention;

fig. 2 is a partial structure view of the anti-condensation motor disclosed in the embodiment of the present invention.

Detailed Description

The utility model discloses a prevent condensation motor reduces the phenomenon of condensation. Furthermore, the utility model also discloses a new energy automobile of having above-mentioned condensation motor of preventing.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the present application further discloses an anti-condensation motor, which comprises a motor main body and a junction box 4 having a wire nose 7, wherein the wire nose 7 is a wire nose 7 connected with a high-voltage wire 5 and is a copper nose, and the present application is characterized in that the outer surface of the wire nose 7 is wrapped with a thermal insulation layer 8. The heat insulation layer 8 is additionally arranged on the outer surface of the wire nose 7, so that the wire nose 7 is insulated in heat insulation, the problem of rapid cooling of the wire nose 7 is solved, and the condensation phenomenon is reduced.

In a preferred embodiment, the insulating layer 8 is a heat-shrinkable fluororubber film adhered to the surface of the wire nose 7. Due to the fact that the structure of the wire nose 7 is complex, the fluororubber heat-shrinkable film which has good deformation capacity, heat preservation, insulation and flame retardance can be attached to and wrapped on the surface of the wire nose 7 after being heated, and the comprehensiveness of wrapping the wire nose 7 is improved. In addition, in practice, the heat-insulating layer 8 can also be a BBS foaming agent layer coated on the surface of the wire nose 7, the BBS foaming agent is uniformly coated on the exposed copper nose part, and a hard-outside and soft-inside closed body is formed after expansion and solidification, so that the heat-insulating effect is achieved. The specific structure of the two heat-insulating layers 8 and the connection mode with the wire nose 7 are disclosed, and other materials with heat-insulating performance can be adopted in practice, can be installed according to the properties of the materials and are within the protection range.

In a further embodiment, the anti-condensation motor further comprises a protective cover 3 arranged on the motor body and used for preventing water flow from entering the oil seal 2 of the output shaft 1. Through the protection casing 3 that sets up oil blanket 2, can block that external high-speed impact rivers get into inside the motor from oil blanket 2, alleviate the condensation phenomenon through the inside moisture of reduction motor promptly. The material and size of the protective cover 3 can be set according to different requirements, and preferably, cast aluminum material can be adopted.

In a specific embodiment, the protective cover 3 is covered on the outer side of the oil seal 2, and a rotating gap is formed between the protective cover 3 and the output shaft 1. With foretell protection casing 3 setting in the front end of oil blanket 2, can prevent that outside rivers from getting into inside the motor through oil blanket 2. The specific installation position of the protective cover 3 is disclosed herein, and in practice, the installation position of the protective cover 3 can be selected according to different requirements and is within the protection range.

In a further embodiment, the motor main body is provided with a vent hole 10, and a one-way valve 9 which is communicated with the outside from the motor main body in a one-way mode is arranged at the vent hole 10. The inside and the outside of foretell air vent 10 intercommunication motor, when the cooling, check valve 9 is closed, inside external humid air and water all can't get into the motor, and when the motor heaied up, the inside temperature of motor risees for atmospheric pressure risees, inside the inside steam of motor then passes through check valve 9 discharge motor, this air vent 10 also can release the pressure that produces because of the inside steam of temperature rising motor simultaneously. Through air vent 10 and check valve 9 in this application, can not only prevent that external steam from getting into still can release the inside steam of motor, further alleviate the condensation problem. The ventilation hole 10 and the one-way valve 9 in the present application, in combination with the protective cover 3 disclosed in the above embodiments, can effectively reduce the humidity of the air inside the motor, i.e., destroy the condensation forming conditions, thereby effectively reducing the condensation.

Specifically, the above-described vent hole 10 is provided in the upper surface of the motor main body, and in practice, the vent hole 10 may be provided in another position of the motor main body having the same effect. The size and shape of the vent 10 are not particularly limited herein.

In a further embodiment, the motor disclosed in the present application further includes a condensation guiding structure 6 disposed in the junction box 4 for absorbing water. The condensation dredging structure 6 in this application will produce the water absorption on the 4 inner walls of terminal box through the water absorption performance and get up, and the heat that produces when the motor work evaporates the absorbed condensation water, finally through the motor of 9 discharges of check valve. The risk brought by motor condensation under extreme conditions can be reduced by arranging the condensation dredging structure 6.

In practice, the condensation leading structure 6 may be foam bonded to the inner wall of the junction box 4, or may be other material with water absorption property. The foam has good water absorption and flame retardance due to the porous property. Specifically, the condensation guiding structure 6 can be preferably installed on the upper surface of the inner wall of the junction box 4, and in practice, the condensation guiding structure 6 can be disposed on other surfaces of the inner wall of the junction box 4, no matter where the condensation guiding structure is disposed, as long as the structure capable of absorbing water in the junction box 4 is within the protection range.

In addition, this application still discloses a new energy automobile, including preventing the condensation motor, wherein, should prevent that the condensation motor is the condensation motor of preventing that the above-mentioned embodiment discloses, consequently, the new energy automobile who has this condensation motor of preventing also has all above-mentioned technological effects.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The anti-condensation motor comprises a motor main body and a junction box (4) with a wire nose (7), and is characterized in that the outer surface of the wire nose (7) is wrapped with a heat insulation layer (8).

2. The anti-condensation motor according to claim 1, wherein the heat insulating layer (8) is a fluororubber heat-shrinkable film adhered to the surface of the wire nose (7) or a BBS foaming agent layer coated on the surface of the wire nose (7).

3. The anti-condensation motor according to claim 1, further comprising a protective cover (3) provided on the motor main body for preventing water from entering the oil seal (2) of the output shaft (1).

4. The anti-condensation motor according to claim 3, wherein the protective cover (3) is covered on the outer side of the oil seal (2), and a rotation gap is formed between the protective cover (3) and the output shaft (1).

5. The motor of claim 1, wherein the motor body is provided with a vent hole (10), and a one-way valve (9) which is communicated with the outside from the motor body in one way is arranged at the vent hole (10).

6. The anti-condensation motor according to claim 5, wherein the vent hole (10) is located on an upper surface of the motor main body.

7. A motor according to any one of claims 1 to 6, further comprising a condensation diverting structure (6) arranged in the junction box (4) for absorbing water.

8. The motor according to claim 7, wherein the condensation guiding structure (6) is a foam glued to the inner wall of the junction box (4).

9. The motor of claim 7, wherein the condensation guiding structure (6) is mounted on an inner wall upper surface of the junction box (4).

10. A new energy automobile, comprising an anti-condensation motor, wherein the anti-condensation motor is the anti-condensation motor according to any one of claims 1 to 9.

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