CN214063946U - Clamping structure and electronic expansion valve applying same - Google Patents
Clamping structure and electronic expansion valve applying same Download PDFInfo
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- CN214063946U CN214063946U CN202023285980.4U CN202023285980U CN214063946U CN 214063946 U CN214063946 U CN 214063946U CN 202023285980 U CN202023285980 U CN 202023285980U CN 214063946 U CN214063946 U CN 214063946U
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Abstract
The utility model discloses an electronic expansion valve of joint structure and applied this structure belongs to switch accessory technical field, and it is unreasonable to have solved traditional electronic expansion valve joint structural design, and the assembly and debugging in-process wearing and tearing are big, the installation wastes time and energy, the relatively poor problem of use comfort. The clamping device mainly comprises a mounting bracket and a clamping piece, wherein a plurality of bosses are arranged on a connecting plate of the mounting bracket at intervals; the clamping and buckling piece is provided with a positioning hole for embedding the boss, and the back of the clamping and buckling piece is provided with convex ridges distributed along an arc track. The utility model discloses wearing and tearing between locating hole and the boss are few, adjust installation labour saving and time saving, and user experience comfort level is high, and the assembly is firm, and is wear-resisting reliable, can wide application in trade fields such as electrical apparatus refrigeration, gas utensil.
Description
Technical Field
The utility model relates to a be applied to switch accessory in gas utensil, the electrical apparatus refrigeration trade, specifically speaking especially relates to a joint structure that the installation is laborsaving, wear-resisting reliable, long service life, user experience comfort level are high and use the electronic expansion valve of this structure.
Background
The refrigeration equipment realizes the control of the refrigeration flow through the electronic expansion valve, and the gas appliance realizes the control of the gas flow through the electronic expansion valve. The electronic expansion valve is composed of a coil assembly and a valve body, wherein the valve body mainly comprises a rotor assembly, a valve core assembly, a valve seat assembly, a gas circulation port and the like. The rotor assembly comprises a rotor, a valve needle component and a stop rod, the valve needle component and the stop rod are fixedly connected with the rotor in a coaxial mode, and the stop rod pushes a rotary spring; the valve core assembly comprises a valve core, a valve core fixing ring, a guide rail spring and a stop ring, the guide rail spring and the stop ring are sleeved on the valve core after being screwed, the valve core is fixedly connected with the valve core fixing ring, and the valve core fixing ring is fixedly connected with a valve seat of the valve seat assembly; the valve seat assembly comprises a valve seat, a valve shell fixedly connected with the valve seat and a valve port arranged at the bottom of the valve seat, and the valve port is matched with the valve needle component. The gas flow openings include a transversely disposed gas inlet 22 and a vertically disposed gas outlet 23. The air inlet 22, the valve body, the air outlet 23 and the air-conditioning pipeline system form a closed refrigerant system, or form a closed gas system together with the stove pipeline system.
The working principle of the electronic expansion valve is as follows: the coil drives the magnetic rotor to rotate forwards or reversely, and the magnetic rotor drives the valve needle assembly to rotate in the valve core and move along the axial direction of the valve core, so that the flow area of the valve port is adjusted, and further the flow of refrigerant or fuel gas is adjusted. The electronic expansion valve has the advantages of large adjustment range, rapid and sensitive action, high adjustment precision, strong stability and the like, and is widely applied to the industry fields of electric appliance refrigeration, gas appliances and the like.
The invention relates to an authorized bulletin number CN205136742U, an authorized bulletin date 2016.04.06, a clamping mechanism and an electronic expansion valve with the clamping mechanism. The electronic expansion valve mainly comprises a buckle metal plate and a coil fixing frame, wherein the buckle metal plate is of an inverted U-shaped buckle structure and is fixedly connected with a coil of the electronic expansion valve, and the coil fixing frame is of a 180-degree point-to-point perforated structure and is fixedly connected with the valve body; the buckle metal plate is provided with a U-shaped convex hull; the lower end surface of the U-shaped convex hull is provided with a convex part; through holes are arranged on the surface of the coil fixing frame around the second through hole, and the through holes are arranged in a 180-degree point-to-point mode relative to the second through hole; six through holes are arranged on the coil fixing frame, wherein three through holes are symmetrically arranged with the other three through holes. It can be seen from the drawings and the technical solutions disclosed in the patent documents that a hemispherical convex portion is designed on a buckle metal (buckle part), and a through hole (positioning hole) is formed in a coil fixing frame (mounting bracket), the hemispherical convex portion can be sequentially embedded into the through hole in the process of rotating the coil fixing frame, and if the through hole to be embedded is the last through hole, the hemispherical convex portion can perform the actions of embedding first and then pulling out in each through hole.
The joint structure that adopts in the market at present all is this kind "design hemispherical bump, design locating hole on installing support on buckle spare" structural design, and this structural design has following not enough: 1. the convex points on the buckling piece are unique and can be abraded by different positioning holes for many times in the process of installation and debugging; different installation sites and different operations of an installer can cause different degrees of abrasion to the unique salient point, and the coil assembly and the valve body can shake due to serious abrasion, so that the flow precision of the electronic expansion valve is influenced; 2. the bump is the design of hemisphere type, and behind the root embedding locating hole of bump, the coil assembly will cooperate very firmly with the valve body, so the bump need not too high also can not be too high, and too high the degree of difficulty that can make the bump adjust next locating hole increases, and also can be more hard when the installation master worker assembles the regulation, and user experience comfort level is relatively poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a not enough to prior art exists, provide the electronic expansion valve of joint structure and applied this structure that the installation is laborsaving, wear-resisting reliable, long service life, user experience comfort level are high.
The utility model discloses a realize through following technical scheme:
a clamping structure is used for connecting a coil assembly and a valve body of an electronic expansion valve, and comprises a mounting bracket fixedly connected with the valve body and a clamping piece fixedly connected with the coil assembly, wherein a plurality of bosses are arranged on a connecting plate of the mounting bracket at intervals, the bosses are round tables with rounded corners at the upper edges, and a gap space between the clamping piece and the coil assembly is used for the connecting plate to rotate; the clamping and buckling piece is provided with a positioning hole for embedding the boss, the back of the clamping and buckling piece is provided with convex ridges distributed along an arc track, and the circle center of each convex ridge is located on the longitudinal central axis Y of the valve body.
Preferably, the positioning hole is a through hole.
Preferably, the cross section of the ridge is also circular-arc-shaped.
Preferably, the mounting bracket further comprises a sleeve-shaped vertical strut which is fixedly connected with the valve body; the connecting plate fixedly connected with the vertical strut is arranged along the upper edge of the vertical strut.
Preferably, the vertical pillar and the connecting plate are integrated through an injection molding process, and the vertical pillar is fixed with the valve seat of the valve body into a whole through a welded connection mode.
Preferably, the connecting plate is semi-annular.
Preferably, the tip sharp corner of the semi-annular connecting plate is chamfered.
Preferably, the fastener is an L-shaped fastener.
An electronic expansion valve comprises a clamping structure, wherein the clamping structure is the clamping structure.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has simple and ingenious structural design, adopts the structural design of one hole for a plurality of convex points, namely, the positioning holes are designed on the buckling piece, and a plurality of bosses are designed on the connecting plate, thereby effectively avoiding the frequent abrasion of the bosses in the adjusting process; the boss of the utility model is a round table with the upper edge in chamfer design, and the back of the buckle piece is provided with convex ridges distributed along the arc track; the boss is low in height, the boss can be separated from the positioning hole by slightly lifting the clamping part and rotating the valve body in the adjusting process, the positioning hole and the boss are less abraded under the combined action of two forces in different directions, the convex ridge of the clamping part is in contact with the surface of the connecting plate in the rotating process, the contact area is small, the friction force is small, the adjusting and mounting are time-saving and labor-saving, and the user experience comfort level is high;
the utility model discloses the assembly is firm, wear-resisting reliable, effectively guaranteed the flow precision of product, and product long service life, manufacturing are easy, the practicality is strong, can wide application in trade fields such as electrical apparatus refrigeration, gas utensil.
Drawings
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
FIG. 3 is a partial enlarged view of the present invention;
fig. 4 is a schematic structural view of the fastener of the present invention;
fig. 5 is a third schematic structural diagram of the present invention.
In the figure: 1. a coil assembly; 2. a valve body; 21. a valve seat; 22. an air inlet; 23. an air outlet; 31. mounting a bracket; 311. a connecting plate; 312. a boss; 313. a vertical pillar; 32. a fastener; 321. positioning holes; 322. a raised ridge.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
a clamping structure is used for connecting a coil assembly 1 and a valve body 2 of an electronic expansion valve, and comprises a mounting bracket 31 fixedly connected with the valve body 2 and a clamping piece 32 fixedly connected with the coil assembly 1, wherein a plurality of bosses 312 are arranged on a connecting plate 311 of the mounting bracket 31 at intervals, the bosses 312 are round tables with rounded corners at the upper edges, and a gap space between the clamping piece 32 and the coil assembly 1 is used for the rotation of the connecting plate 311; the fastener 32 is provided with a positioning hole 321 for the boss 312 to be embedded in, the back of the fastener 32 is provided with a convex ridge 322 distributed along an arc track, and the center of the convex ridge 322 is on the longitudinal central axis Y of the valve body 2.
Preferably, the positioning hole 321 is a through hole. The through hole is convenient for observing whether the boss and the positioning hole are assembled in place.
Preferably, the cross section of the ridge 322 is also circular. The convex ridge with the arc-shaped cross section enables the contact surface between the convex ridge and the connecting plate to be only an arc line, the contact area is small, the friction obstruction is small, and the rotation smoothness is high.
Preferably, the mounting bracket 31 further includes a sleeve-shaped vertical support column 313, the vertical support column 313 is fixedly connected with the valve body 2, and a connecting plate 311 fixedly connected with the vertical support column 313 is arranged along an upper edge of the vertical support column 313. The structure is simple in design and convenient to produce.
Preferably, the vertical support column 313 and the connecting plate 311 are formed into a whole by an injection molding process, and the vertical support column 313 is fixed with the valve seat 21 of the valve body 2 into a whole by a welded connection form. The implementation is easy.
Preferably, the connecting plate 311 is semi-annular.
Preferably, the tip sharp corner of the semi-annular connecting plate 311 is chamfered. The safety is high, and the tip member is prevented from hurting people.
Preferably, the latch 32 is an L-shaped latch. The structure design is simple, and the production and the manufacture are easy.
An electronic expansion valve comprises a clamping structure, wherein the clamping structure is the clamping structure.
Example 1:
a clamping structure is used for connecting a coil assembly 1 and a valve body 2 of an electronic expansion valve. The clamping structure comprises a mounting support 31 fixedly connected with the valve body 2 and a clamping piece 32 fixedly connected with the coil assembly 1, the mounting support is fixedly connected with the valve body 2 in a welding mode, the clamping piece is L-shaped, and the clamping piece is embedded into the coil assembly through a vertical plate of the clamping piece by adopting an injection molding process. The mounting bracket 31 includes a connecting plate 311 and a sleeve-shaped vertical pillar 313, the vertical pillar 313 is fixedly connected to the valve seat 21 of the valve body 2, and the connecting plate 311 is fixedly disposed along an upper edge of the vertical pillar 313. The valve body is sleeved in the middle through hole of the coil assembly, the valve body is rotated, and the connecting plate can be inserted in a gap space between the clamping piece and the coil assembly.
The connecting plate 311 of the mounting bracket 31 of this embodiment is semi-annular, and a plurality of bosses 312 are arranged on the connecting plate at intervals, and generally five bosses are designed, and the boss 312 is a round table with an upper edge in a rounded corner design; the fastener 32 is provided with a positioning hole 321 for the boss 312 to be inserted into, and the back of the fastener 32 is provided with a ridge 322 distributed along an arc track, and the center of the ridge 322 is on the longitudinal central axis Y of the valve body 2. The rotary valve body, the connecting plate alternates in the clearance space between buckle 32 and coil assembly 1, during the rotation, convex ridge and connecting plate direct contact, area of contact is little, it is smooth and easy to rotate, when rotating boss and locating hole position corresponding, the boss can be embedded into the locating hole, thereby realize the rigid coupling of coil assembly and valve body, when needing to continue turned angle, lift buckle gently and rotate the valve body, just can make the boss break away from the locating hole, two not equidirectional power combined action make the wearing and tearing between locating hole and the boss very little.
The structure design of the embodiment is simple and ingenious, and the structure design of one hole for multiple convex points is adopted, namely, the positioning holes are designed on the buckling piece, and the multiple bosses are designed on the connecting plate, so that the frequent abrasion of the bosses in the adjusting process is effectively avoided; the boss of the embodiment is a round table with the upper edge in a chamfer design, and convex ridges distributed along an arc track are arranged on the back surface of the fastener; the boss is low in height, the boss can be separated from the positioning hole by slightly lifting the clamping part and rotating the valve body in the adjusting process, the positioning hole and the boss are less abraded under the combined action of two forces in different directions, the convex ridge of the clamping part is in contact with the surface of the connecting plate in the rotating process, the contact area is small, the friction force is small, the adjusting and mounting are time-saving and labor-saving, and the user experience comfort level is high;
the flow precision of the product is effectively guaranteed, the product has long service life, easy production and manufacture and strong practicability, and can be widely applied to the industry fields of electric appliance refrigeration, gas appliances and the like.
Example 2:
in the present embodiment, the positioning hole 321 is designed as a through hole based on embodiment 1. The through hole is convenient for observing whether the boss and the positioning hole are assembled in place.
The cross section of the ridge 322 is also circular. The convex ridge with the arc-shaped cross section enables the contact surface between the convex ridge and the connecting plate to be only an arc line, the contact area is small, the friction obstruction is small, and the rotation smoothness is high.
The two ends of the semi-annular connecting plate 311 are chamfered in this embodiment. The design is humanized, and the security is high, prevents that the tip spare from hindering the people.
Example 3:
the electronic expansion valve is consistent with the traditional electronic expansion valve in structural design and comprises a coil assembly and a valve body. The valve body mainly comprises a rotor assembly, a valve core assembly, a valve seat assembly, a gas circulation port and the like. The rotor assembly comprises a rotor, a valve needle component and a stop rod, the valve needle component and the stop rod are fixedly connected with the rotor in a coaxial mode, and the stop rod pushes a rotary spring; the valve core assembly comprises a valve core, a valve core fixing ring, a guide rail spring and a stop ring, the guide rail spring and the stop ring are sleeved on the valve core after being screwed, the valve core is fixedly connected with the valve core fixing ring, and the valve core fixing ring is fixedly connected with a valve seat of the valve seat assembly; the valve seat assembly comprises a valve seat, a valve shell fixedly connected with the valve seat and a valve port arranged at the bottom of the valve seat, and the valve port is matched with the valve needle component. The gas flow openings include a transversely disposed gas inlet 22 and a vertically disposed gas outlet 23. The air inlet 22, the valve body, the air outlet 23 and the air-conditioning pipeline system form a closed refrigerant system, or form a closed gas system together with the stove pipeline system. The electronic expansion valve of this embodiment employs the snap structure described in embodiment 1 or embodiment 2.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications in the shape, structure, characteristics and spirit of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a joint structure, this joint structure is used for connecting electronic expansion valve's coil assembly and valve body, the joint structure include with valve body fixed connection's installing support, with coil assembly fixed connection's buckle spare, its characterized in that: a plurality of bosses are arranged on the connecting plate of the mounting bracket at intervals, the bosses are round tables with rounded upper edges, and a gap space between the buckling piece and the coil assembly is used for the connecting plate to rotate; the clamping and buckling piece is provided with a positioning hole for embedding the boss, the back of the clamping and buckling piece is provided with convex ridges distributed along an arc track, and the circle center of each convex ridge is located on the longitudinal central axis Y of the valve body.
2. A clamping arrangement according to claim 1, wherein: the positioning holes are through holes.
3. A clamping arrangement according to claim 1 or 2, wherein: the cross section of the convex ridge is also in a circular arc shape.
4. A clamping arrangement according to claim 3, wherein: the mounting bracket also comprises a sleeve-shaped vertical strut which is fixedly connected with the valve body; the connecting plate fixedly connected with the vertical strut is arranged along the upper edge of the vertical strut.
5. A clamping arrangement according to claim 4, wherein: the vertical strut and the connecting plate are integrated by adopting an injection molding process, and the vertical strut is fixed with the valve seat of the valve body into a whole by adopting a welded connection mode.
6. A clamping arrangement according to claim 4, wherein: the connecting plate is in a semi-ring shape.
7. A clamping arrangement according to claim 6, wherein: and chamfering the sharp corners of the ends of the semicircular connecting plates.
8. A clamping arrangement according to claim 3, wherein: the fastener is an L-shaped fastener.
9. The utility model provides an electronic expansion valve, includes joint structure, its characterized in that: the clamping structure is as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285980.4U CN214063946U (en) | 2020-12-30 | 2020-12-30 | Clamping structure and electronic expansion valve applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285980.4U CN214063946U (en) | 2020-12-30 | 2020-12-30 | Clamping structure and electronic expansion valve applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214063946U true CN214063946U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023285980.4U Active CN214063946U (en) | 2020-12-30 | 2020-12-30 | Clamping structure and electronic expansion valve applying same |
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| CN (1) | CN214063946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811157A (en) * | 2022-04-06 | 2022-07-29 | 浙江中宝自控元件有限公司 | Motor fixing structure and electric valve applying same |
| CN114833992A (en) * | 2022-05-19 | 2022-08-02 | 安徽阿斯通电气有限公司 | Split type preparation process of electronic expansion valve coil and electronic expansion valve coil using split type preparation process |
-
2020
- 2020-12-30 CN CN202023285980.4U patent/CN214063946U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811157A (en) * | 2022-04-06 | 2022-07-29 | 浙江中宝自控元件有限公司 | Motor fixing structure and electric valve applying same |
| CN114833992A (en) * | 2022-05-19 | 2022-08-02 | 安徽阿斯通电气有限公司 | Split type preparation process of electronic expansion valve coil and electronic expansion valve coil using split type preparation process |
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