Electronic expansion valve retainer mounting structure and electronic expansion valve

Abstract

The embodiment of the utility model provides an electronic expansion valve retainer mounting structure and an electronic expansion valve, and relates to the field of valves, the electronic expansion valve retainer mounting structure comprises a retainer body and a magnet assembly, and the magnet assembly comprises a connecting plate and a magnet body which are connected. The retainer body comprises a fixing part and a retaining part which are connected, the fixing part is connected with the connecting plate, and the retaining part is used for being connected with the slip ring so as to drive the slip ring to rotate through the retaining part when the connecting plate rotates; the ends, away from the fixing part, of the connecting plate and the stopping part are located on the two sides of the plate face of the connecting plate. Through the design of the mounting structure, the connecting reliability of the retainer and the connecting plate can be improved, the retainer is not prone to falling off, the assembling mode is simple, and the assembling efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve field, specifically, relate to a kind of electronic expansion valve stopper mounting structure and electronic expansion valve. BACKGROUND

[0002] In the field of refrigeration and heating technology, electronic expansion valve is the refrigerant flow control component of refrigeration and heating equipment, and its working process is generally that, with the energization or de-energization of coil device, the opening of valve needle adjusting valve port is adjusted, so as to adjust the flow of refrigerant. In the prior art, the opening of valve port is controlled by adjusting the lifting stroke of valve needle, and the lifting stroke of valve needle is realized by cooperation of stopper, sliding ring, screw rod and nut, the outer periphery of nut is provided with helical guide groove, and screw rod is screwed in the thread hole of nut; the sliding ring is located in the helical guide groove, the stopper is connected with the magnet through the connecting plate, the screw rod is connected with the connecting plate, the stopper and the screw rod are rotated with the magnet, and can drive the sliding ring to rotate, and the screw rod and the valve needle cooperate, and can be lifted together. The rotation stroke of sliding ring is limited by the starting end and the terminal end of helical guide groove, so the rotation range of magnet is limited, and the lifting stroke of screw rod and valve needle is limited.

[0003] The inventor found in the research that the electronic expansion valve stopper mounting structure of the prior art has at least the following disadvantages:

[0004] The stopper is connected to the inner wall of the connecting seat, and is assembled in the magnet, so the assembly process is difficult, and the assembly cost is high; in addition, the connection reliability of the stopper is low, and the stopper is easy to fall off from the connecting plate. INVENTION CONTENTS

[0005] The utility model aims to provide, for example, an electronic expansion valve stopper mounting structure and electronic expansion valve, which can improve the connection reliability of stopper and connecting plate, the stopper is not easy to fall off, and the assembly mode is simple and the assembly efficiency is high.

[0006] The embodiment of the utility model can be realized as follows:

[0007] In the first aspect, the utility model provides an electronic expansion valve stopper mounting structure, comprising:

[0008] The stopper body and the magnet assembly, the magnet assembly comprises connecting plate and magnet body, the stopper body comprises fixed part and stopper part, the fixed part is connected with the connecting plate, and the stopper part is used for being connected with sliding ring, so as to drive the sliding ring to rotate through the stopper part when the connecting plate rotates;The end of the connecting plate and the stopper part away from the fixed part is located on both sides of the plate surface of the connecting plate.

[0009] In an optional embodiment, the connecting plate is provided with a relief hole, and the stop portion is arranged in the relief hole.

[0010] According to the above scheme, by arranging the stop portion in the relief hole, the space in the area surrounded by the profile of the connecting plate is reasonably utilized, the combination of the stop portion and the connecting plate is more compact, the stop portion does not occupy the space outside the connecting plate, and the overall structure is not easy to increase in size in the radial direction of the connecting plate, so that the overall structure is small in size and occupies less space, and the expansion valve is small in size and light in weight.

[0011] In an optional embodiment, the number of the relief holes is multiple, and the multiple relief holes are uniformly arranged in the circumferential direction of the rotating axis of the connecting plate.

[0012] According to the above scheme, by arranging multiple uniformly arranged relief holes, the structural regularity of the connecting plate can be ensured, and the rotation of the connecting plate is more stable and reliable.

[0013] In an optional embodiment, the fixing portion is welded to the connecting plate.

[0014] According to the above scheme, the fixing mode of the fixing portion and the connecting plate is simple and reliable, and the fixing portion is convenient to process and has high processing efficiency.

[0015] In an optional embodiment, the connecting plate comprises a plate body and a protruding column connected to each other, the protruding column is protruded on one plate surface of the plate body, the fixing portion is fixedly connected to the protruding column or the plate body, and the fixing portion is attached to the plate surface of the plate body connecting the protruding column.

[0016] According to the above scheme, the fixing portion is matched with the protruding column and the plate body, the contact area of the fixing portion and the connecting plate is large, the assembly is more compact, and the stop member body is not easy to fall off from the connecting plate.

[0017] In an optional embodiment, the fixing portion is provided with a clamping hole, and the clamping hole is sleeved outside the protruding column.

[0018] According to the above scheme, the positioning of the stop member body and the connecting plate is realized by the cooperation of the clamping hole and the protruding column, the installation positions of the two are accurate and reliable, the positioning difficulty is reduced, and the assembly efficiency is improved.

[0019] In an optional embodiment, the fixing portion is provided with a gap communicating with the clamping hole, so that the size of the clamping area surrounded by the clamping hole is adjustable.

[0020] According to the above scheme, due to the design of the gap, the inner diameter of the clamping hole can be designed to be smaller than the outer diameter of the protruding column, after the clamping hole is clamped outside the protruding column, the clamping hole is expanded by the protruding column, the fixing portion has a certain deformation ability, can tightly hold the protruding column, and thus the combination firmness of the fixing portion and the protruding column is improved.

[0021] In an optional embodiment, the cross-sectional profile of the card hole is a superior arc shape, and the cross-section is a plane perpendicular to the axis of the card hole.

[0022] Based on the above scheme, the card hole is a superior arc hole, and the holding effect of the convex column is good.

[0023] In an optional embodiment, the magnet body is provided in a cylindrical structure, and the connecting plate is integrally formed with the magnet body and seals one end of the magnet body.

[0024] Based on the above scheme, the integrated structure has high strength and long service life.

[0025] In a second aspect, the utility model provides an electronic expansion valve, the electronic expansion valve includes:

[0026] The electronic expansion valve stopper mounting structure of any one of the foregoing embodiments.

[0027] The beneficial effects of the utility model embodiment include, for example:

[0028] In summary, the electronic expansion valve stopper mounting structure provided by the embodiment includes a fixed part and a stop part connected to each other, the fixed part is fixedly connected with the connecting plate of the magnet assembly, and the fixed part and the stop part are located on the two sides of the plate surface of the connecting plate, in this way, when the connecting plate is connected with the magnet, the fixed part can be located on the upper side of the connecting plate, that is, on the outer side of the top of the connecting plate, and the stop part is located on the inner side of the top of the connecting plate, since the fixed part is directly exposed and is not affected by the magnet body, the installation operation of the fixed part and the connecting plate is simple and reliable, and the assembly efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as limiting the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0030] Figure 1 It is a schematic view of the electronic expansion valve stopper mounting structure of the embodiment of the application.

[0031] Figure 2 It is a schematic view of the stopper body of the embodiment of the application.

[0032] Figure 3A schematic view of the connection plate and the magnet of the embodiment of the present application.

[0033] Icon:

[0034] 100 - stopper body; 110 - fixed part; 111 - clamping hole; 112 - notch; 120 - stop part; 200 - connection plate; 210 - plate body; 211 - avoiding part; 220 - protruding column; 230 - through hole; 300 - magnet body. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0036] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0037] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product of the present application when it is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0039] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0041] In the prior art, when the stopper of the electronic expansion valve is assembled with the connecting plate 200, the top surface of the stopper is fixedly connected with the bottom surface of the connecting plate 200, and due to the influence of the assembly sequence, the stopper needs to be assembled with the connecting plate 200 in the limited space surrounded by the magnet body 300, which leads to small assembly space, high assembly difficulty and low efficiency; in addition, the stopper is easy to fall off from the connecting plate 200 and has a short service life.

[0042] Therefore, the designer provides an electronic expansion valve stopper mounting structure which can reduce the mounting difficulty, improve the mounting efficiency, and firmly combine the stopper with the connecting plate 200, so that the stopper is not easy to fall off.

[0043] Please refer to Figures 1-3 In the embodiment, the electronic expansion valve stopper mounting structure includes a stopper body 100 and a magnet assembly. The magnet assembly includes a connecting plate 200 and a magnet body 300 connected together. The stopper body 100 includes a fixed part 110 and a stop part 120 connected together. The fixed part 110 is connected with the connecting plate 200, and the stop part 120 is used to connect with the slip ring to drive the slip ring to rotate when the connecting plate 200 rotates. The end of the connecting plate 200 away from the fixed part 110 is located on both sides of the plate surface of the connecting plate 200.

[0044] As described above, the assembly method of the electronic expansion valve stopper mounting structure provided by the embodiment includes, for example:

[0045] The fixed part 110 of the stopper body 100 is located at the top of the connecting plate 200 and exposed outside the space surrounded by the magnet body 300. In this way, the stopper body 100 is not affected by the space surrounded by the magnet body 300 when it is fixed with the connecting plate 200, so the mounting difficulty is low and the mounting efficiency is high. At the same time, the fixed part 110 of the stopper body 100 is carried by the connecting plate 200, so the stopper body 100 is not easy to fall off from the connecting plate 200 and has a long service life.

[0046] The following embodiments illustrate the details of the electronic expansion valve mounting structure of the present application by way of example.

[0047] In the embodiment, the electronic expansion valve stopper mounting structure includes a stopper body 100 and a magnet assembly. The magnet assembly includes a connecting plate 200 and a magnet body 300. The stopper body 100 is fixedly connected with the connecting plate 200, and the stopper body 100 penetrates through the connecting plate 200 so that the stopper body 100 is distributed on both sides of the connecting plate 200. The stopper body 100 can rotate together with the connecting plate 200, thereby driving the slip ring to rotate together.

[0048] Please refer to Figures 1-3Optionally, the stopper body 100 comprises an integral fixing portion 110 and a stop portion 120, the fixing portion 110 is provided in a plate structure, the fixing portion 110 is provided with a clamping hole 111 and a notch 112 penetrating in the thickness direction thereof, the notch 112 is communicated with the clamping hole 111, the cross section profile of the clamping hole 111 is a superior arc shape, and the cross section of the clamping hole 111 is a plane perpendicular to the axis of the clamping hole 111. The stop portion 120 is provided in an L-shaped strip-shaped rod, one end of the stop portion 120 is integrated with the outer peripheral surface of the fixing portion 110. The other end of the stop portion 120 penetrates the connecting plate 200 and extends along the axial direction of the connecting plate 200.

[0049] It should be understood that the stopper body 100 can be manufactured by punching, blanking and the like, which is suitable for mass production and reduces the manufacturing cost.

[0050] Optionally, the connecting plate 200 comprises an integral plate body 210 and a convex column 220. The plate body 210 can be a disc, the plate body 210 is provided in an integral manner with the magnet body 300 and is combined tightly, and during operation, the connecting plate 200 cannot rotate relative to the magnet body 300. The convex column 220 can be a cylindrical structure, the convex column 220 is arranged on one plate surface of the plate body 210, and a through hole 230 can be arranged on the connecting plate 200, the through hole 230 penetrates the convex column 220 and the connecting plate 200 at the same time, the lead screw is inserted into the through hole 230 and assembled with the connecting plate 200, so as to realize the connection with the magnet assembly. It should be understood that the convex column 220 and the connecting plate 200 are coaxially arranged.

[0051] Meanwhile, the plate body 210 is provided with an avoiding portion 211, the number of the avoiding portions 211 can be multiple, the multiple avoiding portions 211 are uniformly and interval arranged around the rotation axis of the convex column 220, the structure of the plate body 210 is regular, the dynamic balance is good, and the rotation is stable and reliable. For example, in the embodiment, the number of the avoiding portions 211 on the plate body 210 is three, and the three avoiding portions 211 are uniformly and interval arranged in the circumferential direction of the axis of the connecting plate 200.

[0052] It should be understood that the avoiding portion 211 can be an avoiding groove or an avoiding hole. In order to improve the structural strength of the connecting plate 200, the avoiding portion 211 is provided as an avoiding hole, and there is no opening on the outer side of the connecting plate 200, and the connecting plate 200 has high strength.

[0053] Please refer to Figure 1When assembled, the stop portion 120 is arranged in the avoiding portion 211, the stop portion 120 utilizes the space in the area surrounded by the contour of the connecting plate 200, the combination of the stop portion 120 and the connecting plate 200 is more compact, the stop portion 120 does not occupy the space outside the connecting plate 200, and the overall structure is not easy to increase the size in the radial direction of the connecting plate 200, the overall structure has small volume and occupies small space, which is beneficial to the miniaturization and lightweight design of the expansion valve. At the same time, the clamping hole 111 on the fixing portion 110 is clamped outside the convex column 220, the clamping hole 111 tightly holds the convex column 220 by utilizing the elastic deformation force, the combination of the connecting plate 200 and the stopper body 100 is improved, and the clamping hole 111 and the convex column 220 cooperate to realize the rapid positioning of the stopper body 100 and the connecting plate 200, and the assembly efficiency is improved. The fixing portion 110 can be attached to the top surface of the plate body 210, and the fixing portion 110 and the plate body 210 or the convex column 220 are welded and fixed by welding, the welding operation is simple, and the fixing quality is high.

[0054] It should be noted that the magnet body can be provided as a cylindrical structure, for example, the magnet body is a cylinder, and the magnet body can be designed as an integrated structure with the connecting plate 200 by injection molding, the connecting plate 200 closes the top end of the magnet body, and the structures of the two are firm, high in strength, and long in service life. The stop portion 120 extends into the magnet body, and the fixing portion 110 is located outside the magnet body, which is convenient to install.

[0055] The electronic expansion valve stopper mounting structure provided in the embodiment can make the fixing portion 110 located on the upper side of the connecting plate 200, that is, on the outer side of the top of the connecting plate 200, and the stop portion 120 located on the inner side of the top of the connecting plate 200. Since the fixing portion 110 is directly exposed and is not affected by the magnet body 300, the fixing portion 110 and the connecting plate 200 are simple and reliable to install, and have high assembly efficiency. At the same time, the fixing portion 110 is located above the connecting plate 200, the fixing portion 110 is carried by the connecting plate 200, the combination of the fixing portion 110 and the connecting plate 200 is more firm, the fixing portion 110 is not easy to fall off from the connecting plate 200, has long service life, low failure rate, and low operation cost.

[0056] The embodiment further provides an electronic expansion valve, which comprises the electronic expansion valve stopper mounting structure of the above-mentioned embodiment, and has at least the advantages of simple assembly method, high assembly efficiency, and high combination firmness.

[0057] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A mounting structure for an electronic expansion valve stop, characterized in that, The electronic expansion valve stopper mounting structure comprises a stopper body (100) and a magnet assembly, the magnet assembly comprises a connecting plate (200) and a magnet body (300) connected together, the stopper body (100) comprises a fixed part (110) and a stopper part (120) connected together, the fixed part (110) is connected with the connecting plate (200), the stopper part (120) is used for being connected with a sliding ring, so that the sliding ring is driven to rotate by the stopper part (120) when the connecting plate (200) rotates; the connecting plate (200) and the end of the stopper part (120) away from the fixed part (110) are located on both sides of the plate surface of the connecting plate (200).

2. The electronic expansion valve stopper mounting structure according to claim 1, characterized in that: the connecting plate (200) is provided with a relief hole, and the stopper part (120) is arranged in the relief hole.

3. The electronic expansion valve stopper mounting structure according to claim 2, characterized in that: the number of the relief holes is multiple, and the multiple relief holes are uniformly arranged in the circumferential direction of the rotating axis of the connecting plate (200).

4. The electronic expansion valve stopper mounting structure according to claim 1, characterized in that: the fixed part (110) is welded with the connecting plate (200).

5. The electronic expansion valve stopper mounting structure according to claim 1, characterized in that: the connecting plate (200) comprises a plate body (210) and a protruding column (220) connected together, the protruding column (220) is protruded on one plate surface of the plate body (210), the fixed part (110) is fixedly connected with the protruding column (220) or the plate body (210), and the fixed part (110) is connected with the plate surface of the plate body (210) where the protruding column (220) is located.

6. The electronic expansion valve stopper mounting structure according to claim 5, characterized in that: the fixed part (110) is provided with a clamping hole (111), and the clamping hole (111) is sleeved outside the protruding column (220).

7. The electronic expansion valve stopper mounting structure according to claim 6, characterized in that: the fixed part (110) is provided with a notch (112) communicating with the clamping hole (111), so that the size of the clamping area surrounded by the clamping hole (111) is adjustable.

8. The electronic expansion valve stopper mounting structure according to claim 7, characterized in that: the cross-sectional profile of the clamping hole (111) is an arc shape, and the cross section is a plane perpendicular to the axis of the clamping hole (111).

9. The electronic expansion valve stopper mounting structure according to claim 1, characterized in that: the magnet body (300) is provided in a cylindrical structure, and the connecting plate (200) is integrally formed with the magnet body (300) and seals one end of the magnet body (300). The electronic expansion valve comprises:

10. An electronic expansion valve characterized by the electronic expansion valve stopper mounting structure according to any one of claims 1-9. ​

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