CN214500188U - Stator module, electronic expansion valve and refrigeration equipment - Google Patents
Stator module, electronic expansion valve and refrigeration equipment Download PDFInfo
- Publication number
- CN214500188U CN214500188U CN202023026607.7U CN202023026607U CN214500188U CN 214500188 U CN214500188 U CN 214500188U CN 202023026607 U CN202023026607 U CN 202023026607U CN 214500188 U CN214500188 U CN 214500188U
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- electronic expansion
- stator assembly
- expansion valve
- metal shell
- stator
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Abstract
The utility model discloses a stator module, electronic expansion valve and refrigeration plant. The stator component is applied to an electronic expansion valve, and the electronic expansion valve is provided with a conduction pipe; the stator assembly comprises a shell, a coil assembly and a fixing piece; the coil assembly is arranged in the shell and comprises a metal shell for installing a coil; the fixing piece is arranged on the outer side of the shell so as to be suitable for electrically communicating the metal shell with a valve body of the electronic expansion valve. The outer surface of the metal shell is provided with a convex part which is convex outwards; the fixing piece is fixedly connected with the protruding portion. The utility model discloses a stator module can reduce the coil pack and produce the circumstances of discharging because of high-voltage pulse and appear to improve electronic expansion valve's security performance.
Description
Technical Field
The utility model relates to an electronic expansion valve makes technical field, in particular to stator module, electronic expansion valve and refrigeration plant
Background
Refrigeration equipment (such as air conditioners, refrigerators and the like) on the market at present are generally provided with an electronic expansion valve, so that the electronic expansion valve is utilized to adjust the flow of refrigerant on a refrigerant circulation pipeline. The electronic expansion valve generally comprises a valve body and a stator assembly nested on the valve body for driving a rotor of the valve body to rotate. A conventional stator assembly includes a coil assembly for nesting with the valve body, the conductor frame of the coil assembly being provided with magnetic pole teeth for contacting the valve body. However, these magnetic pole teeth are not completely able to contact the valve body, and a gap is likely to be generated between the two; under the state, when impulse voltage (such as lightning stroke) of several kV is generated on the coil assembly instantaneously, current on the coil assembly is difficult to conduct, so that discharge is easily generated between the magnetic pole teeth and the shell of the valve body, further surrounding circuits are interfered, even the shell of the valve body is broken down, and great potential safety hazard is caused.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a stator module, stator module is applicable to the electronic expansion valve, and the coil pack who aims at reducing stator module produces the circumstances of discharging because of high-voltage pulse and appears to improve the security performance of electronic expansion valve.
To achieve the above object, the present invention provides a stator assembly, which is applied to an electronic expansion valve, the electronic expansion valve having a conduction pipe; the stator assembly comprises a shell, a coil assembly and a fixing piece; the coil assembly is arranged in the shell and comprises a metal shell for installing a coil; the fixing piece is arranged on the outer side of the shell so as to be suitable for electrically communicating the metal shell with a valve body of the electronic expansion valve. Wherein, the outer surface of the metal shell is provided with a convex part which is convex outwards; the fixing piece is fixedly connected with the protruding portion.
Optionally, one end of the fixing piece is provided with a fixing hole; the protruding part is inserted into the fixing hole.
Optionally, the number of the protruding portions provided on the metal shell is greater than or equal to 1; the fixing piece is provided with a fixing hole corresponding to each protruding part so as to insert the corresponding protruding part.
Optionally, the protruding portion is matched with the fixing hole of the fixing piece through pneumatic riveting or welding connection.
Optionally, the metal shell has an end surface facing the conduction pipe, and an outer peripheral surface disposed along a circumference of the end surface; the protruding portion is provided on an end surface or an outer peripheral surface of the metal shell.
Optionally, the boss is integrally formed with the metal shell.
Optionally, the housing is provided with a through hole; the protrusion protrudes toward the through hole to be connected with the fixing member.
Optionally, the stator assembly is provided with a channel extending along the axis of the coil assembly, the channel being suitable for mounting a valve body of an electrically powered valve; the inner wall surface of the metal shell of the coil assembly is provided with magnetic pole teeth located in the channel.
Optionally, the projection extends from an outer surface of the metal shell in a direction away from the magnetic pole tooth.
The utility model also provides an electronic expansion valve, which comprises a valve body and a stator component; the valve body is provided with a first conduction pipe and a second conduction pipe; the stator assembly is nested on the valve body; the stator component is applied to an electronic expansion valve, and the electronic expansion valve is provided with a conduction pipe; the stator assembly comprises a shell, a coil assembly and a fixing piece; the coil assembly is arranged in the shell and comprises a metal shell for installing a coil; the fixing piece is arranged on the outer side of the shell so as to be suitable for electrically communicating the metal shell with a valve body of the electronic expansion valve. Wherein, the outer surface of the metal shell is provided with a convex part; the fixing piece is fixedly connected with the protruding part; the fixing piece is further connected and fixed with the first conduction pipe or the second conduction pipe.
The utility model also provides a refrigeration plant, refrigeration plant includes refrigerant circulation pipeline to and electronic expansion valve, electronic expansion valve install in on the refrigerant circulation pipeline. The electronic expansion valve comprises a valve body and a stator assembly; the valve body is provided with a first conduction pipe and a second conduction pipe; the stator assembly is nested on the valve body; the stator component is applied to an electronic expansion valve, and the electronic expansion valve is provided with a conduction pipe; the stator assembly comprises a shell, a coil assembly and a fixing piece; the coil assembly is arranged in the shell and comprises a metal shell for installing a coil; the fixing piece is arranged on the outer side of the shell so as to be suitable for electrically communicating the metal shell with a valve body of the electronic expansion valve. Wherein, the outer surface of the metal shell is provided with a convex part; the fixing piece is fixedly connected with the protruding part; the fixing piece is further connected and fixed with the first conduction pipe or the second conduction pipe.
The technical scheme of the utility model, through the outer side configuration mounting of the shell of stator module to utilize this mounting to switch on the coil pack of stator module and the valve body of electronic expansion valve, thereby when the coil pack produces the impulse voltage (such as thunderbolt etc.) of several kV in the twinkling of an eye, avoid producing the discharge phenomenon between the magnetic pole tooth of coil pack and the casing of valve body (see the following introduction in detail); based on this, still be provided with the bellying of establishing to the evagination at the surface of metal casing to make operating personnel can aim at the bellying with the mounting from stator module's the outside, with being connected the mounting and fix this bellying, greatly reduced these both connect the degree of difficulty of assembly, both can ensure that the mounting is connected with the metal casing and stabilizes, still can realize the mounting and metal casing electrical property and switch on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of an internal structure of an embodiment of a stator assembly according to the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic view of a coil assembly of the stator assembly of FIG. 1;
fig. 4 is a schematic structural view of the electronic expansion valve of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | |
| End face | |
| 110 | |
121d | |
|
| 120 | |
130 | |
|
| 121 | |
200 | |
|
| 122 | |
211 | |
|
| 121a | |
212 | |
|
| 121b | Raised part |
The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, the present invention provides an embodiment of a stator assembly, wherein the stator assembly 100 is suitable for an electronic expansion valve, and aims to reduce the occurrence of discharge condition of the coil assembly 120 of the stator assembly 100 due to high voltage pulse, so as to improve the safety performance of the electronic expansion valve.
Referring to fig. 1 to 3, in an embodiment of the stator assembly of the present invention, the stator assembly 100 includes a housing 110, a coil assembly 120 and a fixing member 130; wherein the coil assembly 120 is disposed in the housing 110, the coil assembly 120 includes a metal shell 121 to which the coil 122 is mounted; the fixing member 130 is disposed outside the outer shell 110, and is adapted to electrically connect the metal shell 121 with the valve body 200 of the electronic expansion valve (as shown in fig. 4). Also, the outer surface of the metal case 121 is provided with a protrusion 121b, and the protrusion 121b penetrates the outer case 110; the fixing member 130 is electrically connected to the protrusion 121 b.
Specifically, the outer shell 110 of the stator assembly 100 is made of a plastic material, such that the outer shell 110 is not electrically conductive, thereby improving the safety of the stator assembly 100. The metal shell 121 of the coil assembly 120 of the stator assembly 100 is made of a metal material, such as cold-rolled sheet, so that the metal shell 121 has both electrical conductivity and magnetic permeability. The coil 122 of the coil assembly 120 is wound inside the metal case 122. The stator assembly 100 is provided with a passage extending along the axis of the coil assembly 120; the inner wall surface of the metal shell 121 of the coil assembly 120 is provided with magnetic pole teeth 121a located in the passage.
Referring to fig. 1 and 4, when the stator assembly 100 is assembled with the valve body 200 of the electronic expansion valve, the valve body 200 is inserted into the passage of the stator assembly 100, and the housing 210 of the valve body 200 contacts with the magnetic pole teeth 121a, so that the valve body 200 and the stator assembly 100 are nested together; then, the fixing member 130 outside the stator assembly 100 is fixedly connected to the conduction pipe of the valve body 200, so that the coil assembly 120 is electrically conducted to the ground through the conduction pipe. Therefore, when the coil assembly 120 of the stator assembly 100 generates a pulse voltage of several kV at a moment (e.g., a lightning strike), the current of the coil assembly 120 is conducted to the conduction pipe of the electronic expansion valve through the fixing member 130, and then conducted out through the conduction pipe of the electronic expansion valve (e.g., conducted to the ground), so that the discharge is not easily generated between the magnetic pole teeth 121a of the coil assembly 120 and the housing 210 of the valve body 200, thereby avoiding interference with the surrounding circuit or breakdown of the housing 210 of the valve body 200.
It should be noted that the conduction pipe of the valve body 200 of the electronic expansion valve includes a first conduction pipe 211 and a second conduction pipe 212; one of the first conduction pipe 211 and the second conduction pipe 212 serves as an inlet conduction pipe, and the other serves as an outlet conduction pipe. The fixing member 130 of the stator assembly 100 may be fixedly connected to the first conduction pipe 211, or may be fixedly connected to the second conduction pipe 212, which is not limited herein.
In the present embodiment, it is considered that the fixing member 130 is not easily assembled in direct connection with the metal case 121 of the coil assembly 120 because the coil assembly 120 is located inside the case 110 and blocked by the case 110. In view of this, the protrusion 121b is disposed on the outer surface of the metal shell 121, and the protrusion 121b are protruded outward, so that an operator can connect the fixing member 130 with the protrusion 121b protruded outward from the metal shell 121 on the outer side of the insulating shell 110 without detaching the outer shell 110, and the assembling process is relatively simple and easy to operate.
For the protrusion portion 121b, the protrusion portion 121b should be made of a material having conductive property, such as a metal material. Considering that the protrusion 121b is exposed outside the stator assembly 100, in order to prevent the protrusion 121b from being corroded to affect the conductivity thereof, optionally, the protrusion 121b is made of a stainless steel material, so that corrosion damage is not likely to occur; the protrusion 121b is formed using a drawing and pressing process. The shape and structure of the projection 121b are not particularly limited. Such as but not limited to: the protrusion 121b may be cylindrical, rectangular, or triangular, and of course, the protrusion 121b may also be a flange. In this embodiment, the drawing guide protrusion is disposed in a cylindrical shape.
As for the formation of the protrusion 121b on the metal shell 121, various designs are possible. Such as but not limited to: the boss 121b is integrally formed with the metal shell 121; alternatively, the protrusion 121b may be mounted on the metal case 121 after the protrusion 121b and the metal case 121 are separately molded. Specifically, the protrusion 121b is integrally formed with the metal case 121, so that the manufacturing process is reduced and the production efficiency is improved.
The technical solution of the present invention is to configure the fixing member 130 outside the casing 110 of the stator assembly 100, so as to utilize the fixing member 130 to conduct the coil assembly 120 of the stator assembly 100 and the valve body 200 of the electronic expansion valve, thereby avoiding the discharge phenomenon between the magnetic pole teeth 121a of the coil assembly 120 and the housing 210 of the valve body 200 when the coil assembly 120 generates the pulse voltage (such as lightning stroke, etc.) of several kV in the moment (see the foregoing description in detail, and will not be described herein); based on this, for convenience of fixing piece 130 and coil assembly 120 being connected and fixed, be provided with at the surface of metal casing 121 and establish bellying 121b to the evagination, thereby make operating personnel can aim at bellying 121b with fixing piece 130 from stator module 100's the outside, in order to be connected fixedly with fixing piece 130 and this bellying 121b, greatly reduced these both connect the degree of difficulty of assembly, can ensure that fixing piece 130 and metal casing 121 are connected firmly, still can realize fixing piece 130 and metal casing 121 electrical property and switch on.
Referring to fig. 1 to 3, in an embodiment, the metal shell 121 has an end surface 121c facing a conducting pipe (such as the first conducting pipe 211 or the second conducting pipe 212) of the electronic expansion valve, and an outer peripheral surface 121d disposed along a circumference of the end surface 121 c; the boss 121b is provided on the end surface 121c or the outer peripheral surface 121d of the metal shell 121. Specifically, here, the boss 121b is provided on the end face 121c of the metal shell 121; also, the protrusion 121b extends from the end surface 121c in a direction away from the magnetic pole tooth 121a so that the protrusion 121b is closer to the valve body 200, thereby facilitating the connection of the fixing member 130 with both the connection protrusion 121b and the valve body 200.
Further, in order to facilitate the protrusion 121b to penetrate through the housing 110, a through hole 111 may be optionally formed through an end surface of the housing 110; the protrusion 121b protrudes toward the through hole 111 to be connected with the fixing member 130. When the stator assembly 100 is assembled, the coil assembly 120 is disposed inside the outer case 110, and the protrusion 121b of the coil assembly 120 protrudes from the through hole 111 of the outer case 110, so that the protrusion 121b is exposed from the through hole 111 to facilitate connection of the protrusion 121b with the fixing member 130.
Referring to fig. 1 to 3, in an embodiment, a fixing hole 131 is disposed at one end of the fixing member 130; the protrusion 121b is inserted into the fixing hole 131 to fix the fixing member 130 and the protrusion 121 b. Thus, the fixing member 130 can be welded or riveted without holding the fixing member 130 by hand. Specifically, the protrusion 121b may be in interference fit with the fixing hole 131 of the fixing member 130, or may be in clearance fit with the fixing hole. After the protrusions 121b are inserted into the fixing holes 131 of the fixing member 130, they may be coupled by pneumatic riveting or welding. When the riveting method is adopted, the protrusion 121b of the metal shell 121 directly contacts with the fixing member 130, so that the two are directly electrically conducted; when the welding method is adopted, the welding material forms a welding structure in the welding process between the fixing member 130 and the protruding portion 121b, and the fixing member 130 and the protruding portion 121b are not only connected and fixed by the welding structure, but also electrically conducted, so that the fixing member 130 and the metal shell 121 are electrically conducted.
Based on any of the above embodiments, the number of the protrusions 121b may be one, or two or more. The number of the fixing holes 131 on the fixing member 130 is appropriately configured according to the number of the protrusions 121b, so that each protrusion 121b corresponds to a fixing hole 131 inserted and matched with the protrusion. Alternatively, the number of the protrusions 121b provided to the metal shell 121 is greater than or equal to 1; the fixing member 130 is provided with a fixing hole 131 corresponding to each of the protrusions 121b for inserting the corresponding protrusion 121 b.
Referring to fig. 4, the present invention further provides an electronic expansion valve, which includes a valve body 200 and a stator assembly 100, wherein the stator assembly 100 is nested on the valve body 200; wherein, the valve body 200 is provided with a first conduction pipe 211 and a second conduction pipe 212; the specific structure of the stator assembly 100 is described with reference to the above embodiments. The fixing member 130 of the stator assembly 100 is connected and fixed to the first conduction pipe 211 or the second conduction pipe 212. Since the electronic expansion valve adopts all the technical solutions of all the embodiments, all the beneficial effects brought by the technical solutions of the embodiments are also achieved, and are not described in detail herein.
Specifically, the first conduction pipe 211 serves as an inlet conduction pipe, and the second conduction pipe 212 serves as an outlet conduction pipe. Since the first conduction tube 211 and the second conduction tube 212 are generally metal tubes, such as copper tubes, the first conduction tube 211 and the second conduction tube 212 have good electrical conductivity. Accordingly, the fixing member 130 can be connected and fixed to the first conduction pipe 211 and/or the second conduction pipe 212 of the valve body 200, i.e., can be conducted to the ground.
The fixing member 130 may be connected to the first conductive pipe 211 and/or the second conductive pipe 212 by a snap connection. For example, the fixing member 130 is designed as an elastic clip having a pair of elastic arms, and the elastic clip is clamped on the first conduction pipe 211 or the second conduction pipe 212 through the pair of elastic arms, so that the elastic clip is clamped on the first conduction pipe 211 or the second conduction pipe 212. Of course, the connection manner of the fixing member 130 and the first conduction pipe 211 and/or the second conduction pipe 212 is not limited to this, and in other embodiments, a screw fixing manner, a bundling fixing manner, or the like may be adopted.
The utility model also provides a refrigeration plant, refrigeration plant includes refrigerant circulation pipeline and electronic expansion valve, electronic expansion valve install in on the refrigerant circulation pipeline. The specific structure of the electronic expansion valve refers to the above-described embodiment. Since the refrigeration equipment adopts all technical solutions of all the embodiments, all the beneficial effects brought by the technical solutions of the embodiments are also achieved, and are not repeated herein.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (11)
1. A stator assembly is applied to an electronic expansion valve, wherein the electronic expansion valve is provided with a conduction pipe; characterized in that the stator assembly comprises:
a housing;
the coil assembly is arranged in the shell and comprises a metal shell for installing a coil; and
the fixing piece is arranged on the outer side of the shell and is suitable for electrically communicating the metal shell with a conducting pipe of the electronic expansion valve;
the outer surface of the metal shell is provided with a convex part which is arranged in a protruding manner; the fixing piece is fixedly connected with the protruding portion.
2. The stator assembly of claim 1, wherein one end of the stator member is provided with a stator hole; the protruding part is inserted into the fixing hole.
3. The stator assembly of claim 2, wherein the metal shell is provided with a number of lobes that is greater than or equal to 1; the fixing piece is provided with a fixing hole corresponding to each protruding part so as to insert the corresponding protruding part.
4. The stator assembly of claim 3, wherein the lobes mate with the securing holes of the fixture via a pneumatic rivet or welded connection.
5. The stator assembly of any one of claims 1 to 3, wherein the metal shell has an end face facing the conduit, and an outer circumferential surface disposed circumferentially along the end face; the protruding portion is provided on an end surface or an outer peripheral surface of the metal shell.
6. A stator assembly according to any of claims 1 to 3, characterized in that the lobes are integrally formed with the metal casing.
7. A stator assembly according to any of claims 1 to 3, wherein the housing has a through hole therethrough; the protrusion protrudes toward the through hole to be connected with the fixing member.
8. A stator assembly according to any of claims 1 to 3, wherein the stator assembly is provided with a channel extending along the axis of the coil assembly, the channel being adapted for mounting to a valve body of an electrically powered valve; the inner wall surface of the metal shell of the coil assembly is provided with magnetic pole teeth located in the channel.
9. The stator assembly of claim 8 wherein the lobes extend from an outer surface of the metal shell in a direction away from the pole teeth.
10. An electronic expansion valve, comprising:
the valve body is provided with a first conduction pipe and a second conduction pipe; and
the stator assembly of any of claims 1 to 9, nested on the valve body, the fixture of the stator assembly being fixedly connected to the first or second conduit.
11. A refrigerating apparatus comprising a refrigerant circulation line, and the electronic expansion valve of claim 10, wherein the electronic expansion valve is installed on the refrigerant circulation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023026607.7U CN214500188U (en) | 2020-12-14 | 2020-12-14 | Stator module, electronic expansion valve and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023026607.7U CN214500188U (en) | 2020-12-14 | 2020-12-14 | Stator module, electronic expansion valve and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214500188U true CN214500188U (en) | 2021-10-26 |
Family
ID=78208702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023026607.7U Active CN214500188U (en) | 2020-12-14 | 2020-12-14 | Stator module, electronic expansion valve and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214500188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484049A (en) * | 2022-04-15 | 2022-05-13 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
| WO2022127266A1 (en) * | 2020-12-14 | 2022-06-23 | 广东美芝制冷设备有限公司 | Stator assembly, electronic expansion valve, and refrigeration device |
-
2020
- 2020-12-14 CN CN202023026607.7U patent/CN214500188U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022127266A1 (en) * | 2020-12-14 | 2022-06-23 | 广东美芝制冷设备有限公司 | Stator assembly, electronic expansion valve, and refrigeration device |
| US11867439B2 (en) | 2020-12-14 | 2024-01-09 | Guangdong Meizhi Compressor Co., Ltd. | Stator assembly, electronic expansion valve and refrigeration device |
| CN114484049A (en) * | 2022-04-15 | 2022-05-13 | 广东威灵电机制造有限公司 | Electronic expansion valve and refrigeration equipment |
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