CN217778287U

CN217778287U - Electronic expansion valve, air conditioning system and vehicle

Info

Publication number: CN217778287U
Application number: CN202221861106.7U
Authority: CN
Inventors: 王宇; 丁鹏; 林军昌; 张旭
Original assignee: Hozon New Energy Automobile Co Ltd
Current assignee: Hozon New Energy Automobile Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-11-11
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses an electronic expansion valve, air conditioning system and vehicle, electronic expansion valve includes valve body, control piece and heat-proof part, and the valve body has first flow path, second flow path and the control flow path between first flow path and the second flow path; the control piece is movably arranged on the valve body so as to control the flow of the valve body by controlling the flow area of the control flow path; at least a part of the first flow path and the second flow path are opposite to each other in the extending direction of the valve body, at least a part of the valve body is positioned between the first flow path and the second flow path, and the heat insulation part is positioned on the at least a part of the valve body to reduce heat exchange between the first flow path and the second flow path. Therefore, the heat insulation part is arranged to reduce heat exchange generated on the solid part of the valve body between the first flow path and the second flow path, improve heat leakage of the valve body, improve the working stability of the electronic expansion valve, improve the working performance and reduce energy consumption.

Description

Electronic expansion valve, air conditioning system and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to an electronic expansion valve, air conditioning system and vehicle are related to.

Background

In the related art, in the air conditioning system, the temperature is rapidly reduced in the process of changing the refrigerant from a high-pressure state to a low-pressure state, so that the refrigerant can be used for refrigerating, and in the refrigerating process of the air conditioning system, an electronic expansion valve can be adopted to realize intelligent control and accurate control of the refrigerant flow, the refrigerating speed and the like.

In order to reduce the complexity of the pipeline, the high-pressure flow path, the low-pressure flow path and a control element for controlling the flow are integrated on the valve body, so that heat exchange is generated between the area where the high-pressure flow path is located and the area where the low-pressure flow path is located, the refrigeration performance of the air conditioning system is reduced, and the energy consumption is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an electronic expansion valve, which has less heat leakage and can improve the working stability of the electronic expansion valve.

The utility model discloses an adopt above-mentioned electronic expansion valve's air conditioning system is further provided.

The utility model also provides an adopt above-mentioned air conditioning system's vehicle.

According to the utility model discloses electronic expansion valve of first aspect embodiment, include: a valve body having a first flow path, a second flow path, and a control flow path between the first flow path and the second flow path; the control element is movably arranged on the valve body so as to control the flow of the valve body by controlling the flow area of the control flow path; at least a part of the first flow path and the second flow path are opposed to each other in an extending direction of the valve body, at least a part of the valve body is located between the first flow path and the second flow path, and the heat insulating portion is located on the at least a part of the valve body to reduce heat exchange between the first flow path and the second flow path.

According to the utility model discloses electronic expansion valve is through setting up thermal-insulated portion to reduce the heat exchange that the valve body is located the entity part production between first flow path and the second flow path, improve the heat leakage of valve body, improve electronic expansion valve's job stabilization nature, and improve working property, reduce the energy consumption.

According to some embodiments of the present invention, the inner wall of the valve body is provided with a projection, so that the flow area of the control flow path is smaller than the flow area of the first flow path and the second flow path, and the heat insulating portion is formed in the projection.

Further, the heat insulating portion is configured as a heat blocking groove formed on a side of the boss away from the control flow path.

Further, the opening of the heat resistance groove is gradually increased in a direction away from the control flow path.

In some embodiments, the thermal insulation portion is configured as a thermal barrier covering at least edges of the bumps, and the thermal barrier has a lower thermal conductivity than the valve body.

Further, the heat resistant layer also covers the first flow path and the second flow path.

Furthermore, a groove opposite to the bump is further formed in the inner wall of the valve body, the control flow path is defined between the groove and the bump, and the bottom wall and the side wall of the groove are covered with the heat resistance layers.

Further, a first flow passage is defined between the bottom wall of the groove and the projection, a second flow passage is defined between the side wall of the groove and the projection, the first flow passage is communicated with the first flow passage, the second flow passage is communicated with the second flow passage, and the control element is used for controlling the flow area of the first flow passage and/or the second flow passage.

According to the utility model discloses air conditioning system of second aspect embodiment includes: the electronic expansion valve described in the above embodiments.

According to the third aspect of the present invention, the vehicle comprises the air conditioning system described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an electronic expansion valve according to a first embodiment of the present invention;

fig. 2 is a schematic view of an electronic expansion valve according to a second embodiment of the present invention;

fig. 3 is a schematic view of an electronic expansion valve according to a third embodiment of the present invention.

Reference numerals are as follows:

the electronic expansion valve 100 is provided with a valve,

the valve body 10, the first flow path 11, the second flow path 12, the control flow path 13, the first flow path 131, the second flow path 132, the projection 14, the groove 15,

the control member 20 is provided with a control member,

heat insulation part 30, heat resistance layer 31, heat resistance groove 32.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

An electronic expansion valve 100, an air conditioning system, and a vehicle according to embodiments of the present invention will be described below with reference to fig. 1 to 3.

As shown in fig. 1, fig. 2 and fig. 3, an electronic expansion valve 100 according to an embodiment of the present invention includes: a valve body 10, a control member 20, and a heat insulating part 30.

The valve body 10 has a first flow path 11, a second flow path 12, and a control flow path 13 between the first flow path 11 and the second flow path 12, one of the first flow path 11 and the second flow path 12 may be formed as a high-pressure flow path, and the other may be correspondingly formed as a low-pressure flow path, or both may be formed as a high-pressure flow path and both may be formed as low-pressure flow paths for applying to different fluid flow paths or different operation modes of the same fluid flow path, and the control flow path 13 is located between the first flow path 11 and the second flow path 12.

Furthermore, by providing the control member 20, the control member 20 can be movably disposed on the valve body 10 to control the flow rate of the valve body 10 by controlling the flow area of the control flow path 13, i.e., to control whether the first flow path 11 and the second flow path 12 are communicated or not and to control the flow rate.

Note that at least a part of the first flow path 11 and the second flow path 12 are opposed to each other in the extending direction of the valve body 10, at least a part of the valve body 10 is located between the first flow path 11 and the second flow path 12, and the heat insulating portion 30 is located at least a part of the valve body 10 to reduce heat exchange between the first flow path 11 and the second flow path 12.

Specifically, when the first flow path 11 is a high-pressure flow path, and the second flow path 12 is a low-pressure flow path; or the second flow path 12 is a high-pressure flow path, and when the first flow path 11 is a low-pressure flow path, the temperature difference exists between the two sides (toward the first flow path 11 and toward the second flow path 12) of the solid part of the valve body 10 between the first flow path 11 and the second flow path 12, which can generate heat exchange, resulting in the pressure drop of the fluid in the high-pressure flow path and the temperature rise of the fluid in the low-pressure flow path, the utility model discloses further set up the heat insulation part 30, and make the heat insulation part 30 be located on the solid part between the first flow path 11 and the second flow path 12 of the valve body 10, so as to reduce the heat exchange on the solid part, reduce the heat leakage, keep the temperature in the low-pressure flow path stable, the pressure in the high-pressure flow path stable, and improve the operation stability of the electronic expansion valve 100.

Exemplarily, electronic expansion valve 100 can be used at air conditioning system, and the heat exchange appears between air conditioning system's high temperature side and the low temperature side, can lead to air conditioning system's refrigeration performance to descend, and the energy consumption rises, the utility model discloses a set up heat-proof portion 30, can reduce the heat exchange between high temperature side and the low temperature side to guarantee refrigeration performance, it is stable to maintain the energy consumption.

According to the utility model discloses electronic expansion valve 100 is through setting up thermal-insulated portion 30 to reduce the heat exchange that produces on the entity part that valve body 10 is located between first flow path 11 and the second flow path 12, improve the hourglass heat of valve body 10, improve electronic expansion valve 100's job stabilization nature, and improve working property, reduce the energy consumption.

As shown in fig. 1, according to some embodiments of the present invention, a protrusion 14 is disposed on an inner wall of the valve body 10, so that a flow area of the control flow path 13 is smaller than that of the first flow path 11 and the second flow path 12, and the heat insulating part 30 is formed on the protrusion 14.

Specifically, the heat exchanger or the heat transfer can be reduced by forming the projection 14 at least in a portion of the valve body 10 located between the first channel 11 and the second channel 12, and providing the projection 14 so that the flow areas of the first channel 11 and the second channel 12 are larger than the flow area of the control channel 13, thereby making the flow rate control, the shutoff, and the conduction control between the first channel 11 and the second channel 12 easier and more convenient, and the response speed of the conduction and the shutoff faster, and forming the heat insulating portion 30 in the projection 14.

In some embodiments, as shown in fig. 1 and 3, the thermal insulation 30 may be configured as a thermal resistance slot 32, the thermal resistance slot 32 being formed on a side of the bump 14 away from the control flow path 13.

That is, the empty groove (i.e., the heat blocking groove 32) is formed in the bump 14, and the heat blocking groove 32 is located on the side away from the control flow path 13, so that the formation of the heat blocking groove 32 does not affect the control flow path 13, and the heat blocking groove can be effectively isolated by air, thereby reducing the cross-sectional area of the area directly used for heat exchange or heat transfer on the bump 14, that is, reducing the cross-sectional area of the heat conduction path, so as to reduce the speed of heat conduction or heat transfer, and thus reducing the heat leakage of the valve body 10.

It should be noted that, air is used as a poor heat conductor, and the heat-blocking slot 32 is communicated with the outside atmosphere, so that a good heat-insulating effect can be achieved, and further, a heat-insulating medium with a heat-insulating effect superior to that of air can be filled in the heat-blocking slot 32, so as to reduce the heat conduction speed.

Further, the heat-blocking groove 32 is gradually opened in a direction away from the control flow path 13. Like this, can further improve thermal-insulated effect, further reduce heat conduction speed, and the pressure that the one end of neighbouring control circuit bore is bigger, and the opening is littleer, can reduce valve body 10's deformation, prolongs valve body 10's life to through setting up heat-blocking groove 32, reduce the material quantity, realize electronic expansion valve 100's lightweight setting, and reduce material cost.

Of course, the structure of the thermal insulation part 30 according to the embodiment of the present invention is not limited thereto, and as shown in fig. 1 and 2, in other embodiments, the thermal insulation part 30 is configured as a thermal insulation layer 31, the thermal insulation layer 31 covers at least the edge of the bump 14, and the thermal conductivity of the thermal insulation layer 31 is lower than that of the valve body 10.

That is, the thermal insulation layer 31 with a lower thermal conductivity coefficient may be adopted to cover the edge of the bump 14, so as to reduce the thermal conductivity between the first flow path 11 and the bump 14 and between the second flow path 12 and the bump 14, and from the technical perspective of reducing the thermal conductivity, effectively reduce the heat exchange between the fluid in the first flow path 11 and the fluid in the second flow path 12, thereby achieving the above technical effects.

Further, the heat-resistant layer 31 is further covered on the first flow path 11 and the second flow path 12, as shown in fig. 1, the inner wall of the valve body 10 is further provided with a groove 15 opposite to the bump 14, a control flow path 13 is defined between the groove 15 and the bump 14, and the bottom wall and the side wall of the groove 15 are covered with the heat-resistant layer 31, so that heat exchange between other areas of the valve body 10 and the fluid in the first flow path 11 and the fluid in the second flow path 12 can be further reduced, heat leakage of the electronic expansion valve 100 is further reduced, and the working performance of the electronic expansion valve 100 is improved.

Further, a first flow passage 131 is defined between the bottom wall of the groove 15 and the projection 14, a second flow passage 132 is defined between the side wall of the groove 15 and the projection 14, the first flow passage 131 is communicated with the first flow passage 11, the second flow passage 132 is communicated with the second flow passage 12, and the control member 20 is used for controlling the flow area of the first flow passage 131 and/or the second flow passage 132, so that the flow control and the opening and closing control of the electronic expansion valve 100 are simpler and more convenient, and the response speed is higher.

As shown in fig. 1, fig. 2 and fig. 3, the heat insulation portion 30 of the embodiment of the present invention may include a heat resistance groove 32 and a heat resistance layer 31, as in the first embodiment shown in fig. 1, the heat resistance groove 32 and the heat resistance layer 31 are disposed at the same time, as in the second embodiment shown in fig. 2, only the heat resistance layer 31 is disposed, as in the third embodiment shown in fig. 3, only the heat resistance groove 3232 is disposed, and all the technical effects can be achieved, and details are not repeated herein.

According to the utility model discloses air conditioning system of second aspect embodiment includes: the electronic expansion valve 100 in the above embodiment can improve the cooling capacity of the air conditioning system and reduce the energy consumption of the air conditioning system.

According to the utility model discloses vehicle of third aspect embodiment, including the air conditioning system in above-mentioned embodiment, the technological effect that has is unanimous with above-mentioned air conditioning system, and no longer gives unnecessary details here.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more.

In the description of the present invention, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic expansion valve, comprising:

a valve body (10), the valve body (10) having a first flow path (11), a second flow path (12), and a control flow path (13) between the first flow path (11) and the second flow path (12);

a control member (20), wherein the control member (20) is movably arranged on the valve body (10) to control the flow of the valve body (10) by controlling the flow area of the control flow path (13);

and a heat insulating portion (30) that is located at least in a portion of the first flow path (11) and the second flow path (12) so as to oppose each other in an extending direction of the valve body (10), at least in a portion of the valve body (10) between the first flow path (11) and the second flow path (12), and the heat insulating portion (30) is located at least in the portion of the valve body (10) so as to reduce heat exchange between the first flow path (11) and the second flow path (12).

2. An electronic expansion valve according to claim 1, wherein a protrusion (14) is provided on an inner wall of the valve body (10) so that a flow area of the control flow path (13) is smaller than flow areas of the first flow path (11) and the second flow path (12), and the heat insulating portion (30) is formed in the protrusion (14).

3. An electronic expansion valve according to claim 2, wherein the heat insulating portion (30) is configured as a heat blocking groove (32), the heat blocking groove (32) being formed on a side of the projection (14) remote from the control flow path (13).

4. An electronic expansion valve according to claim 3, wherein the heat resistance groove (32) is gradually increasing in opening in a direction away from the control flow path (13).

5. An electronic expansion valve according to claim 2, wherein the insulating portion (30) is configured as a heat resistant layer (31), the heat resistant layer (31) covering at least the rim of the bump (14), the heat resistant layer (31) having a lower thermal conductivity than the valve body (10).

6. An electronic expansion valve according to claim 5, wherein the thermal barrier (31) also covers the first flow path (11) and the second flow path (12).

7. An electronic expansion valve according to claim 5, wherein the valve body (10) further comprises a groove (15) on an inner wall thereof opposite to the projection (14), the control flow path (13) is defined between the groove (15) and the projection (14), and the heat-resistant layer covers a bottom wall and a side wall of the groove (15).

8. An electronic expansion valve according to claim 7, wherein a first flow passage (131) is defined between the bottom wall of the recess (15) and the projection (14), a second flow passage (132) is defined between the side wall of the recess (15) and the projection (14), the first flow passage (131) communicating with the first flow passage (11), the second flow passage (132) communicating with the second flow passage (12), and the control member (20) is adapted to control the flow area of the first flow passage (131) and/or the second flow passage (132).

9. An air conditioning system, comprising: an electronic expansion valve according to any of claims 1-8.

10. A vehicle characterized by comprising the air conditioning system of claim 9.