CN214743587U - High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve - Google Patents
High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve Download PDFInfo
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- CN214743587U CN214743587U CN202120914308.2U CN202120914308U CN214743587U CN 214743587 U CN214743587 U CN 214743587U CN 202120914308 U CN202120914308 U CN 202120914308U CN 214743587 U CN214743587 U CN 214743587U
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Abstract
The utility model relates to a high pressure-resistant high-sealing heat pump air conditioner relief valve, which comprises a valve body, wherein a cavity is arranged in the middle of the valve body, a sealing seat is arranged at the installation insertion end of the valve body, and an exhaust passage is arranged in the middle of the sealing seat; a sealing ball, a sliding block and a spring are sequentially arranged in a cavity of the valve body, the sliding block is movably arranged in the cavity, the sliding block is provided with an exhaust through hole, the sealing ball is arranged between the sliding block and the sealing seat, one end of the spring is abutted against the sliding block, and the other end of the spring is limited by a limiting piece; in normal working conditions, the sealing ball blocks the exhaust passage of the sealing seat and the exhaust through hole of the sliding block; and when the working condition is high, the exhaust passage of the sealing seat and the exhaust through hole of the sliding block are opened. This structure is to the characteristic of bearing high pressure, high temperature resistant, resistant vibration of relief valve, sets up the structure, and hardness through different materials is poor, adopts to screw up hard sealed, satisfies current solenoid valve operation requirement.
Description
Technical Field
The utility model relates to a solenoid valve, concretely relates to high withstand voltage high seal heat pump air conditioner relief valve.
Background
With the continuous improvement of the demand of consumers for comfort experience, the country pays more and more attention to environmental protection, and new energy electric transportation becomes a trend. The new energy electric automobile plays a key role in popularization of urban electric traffic, prolonging of battery life, improvement of endurance capacity and improvement of performance of a driving system at present in terms of improvement of endurance mileage and thermal management. The heat pump air conditioner is an effective solution for heating of a pure electric vehicle. The heat pump air conditioner is a few feasible technologies to ensure low-energy-consumption heating under the condition that the power battery does not have breakthrough progress, the efficiency coefficient is 2-3 times higher than that of PTC heating, and the endurance mileage can be effectively prolonged by more than 20%.
The working cold medium of the automobile air conditioning system usually adopts CO2，CO2The critical pressure of the refrigerant is high (Pc is 7.38MPa), the critical temperature of the refrigerant is low (Tc is 31.25 ℃), and in order to achieve good comprehensive refrigeration performance, a refrigeration system using carbon dioxide as a refrigerant must work in a transcritical region, and the working pressure exceeds the critical pressure, which is much higher than that of the current automobile air-conditioning system. At present, an electronic expansion valve/an electronic stop valve working in a high-pressure refrigeration system smoothly drives a valve core to move under high pressure, on one hand, the driving force is increased by adopting a large-specification motor, a speed reducer and other modes, and the mode has the defects of complex structure, high energy consumption, difficulty in miniaturization and the like; on the other hand, the end of the valve core is designed into a needle point shape, so that the cross-sectional area is reduced, and the force acting on the valve core is reduced, and the mode comprises the following steps: complex valve core processing, large flow regulation nonlinear area and the like.
Patent CN112361671A discloses a solenoid valve with hard seal structure, and this utility model adopts the assembly methods of hard seal, is difficult to cause the leakage, increases the life of solenoid valve, nevertheless with this solenoid valve is supporting, still needs high withstand voltage relief valve, and traditional air conditioner relief valve can't bear the requirement of pressure release when system's pressure reaches 130 and 170 bar.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high withstand voltage high seal heat pump air conditioner relief valve for solving above-mentioned problem, solve the problem that the air conditioner electronic valve easily leaked under the superhigh pressure operating mode, especially the outside of air conditioner electronic valve is leaked and is leaded to the problem that cold media reduced in air conditioning system, and provides a heat pump air conditioner electron combination valve seal structure.
The purpose of the utility model is realized through the following technical scheme:
a high-pressure-resistance high-sealing heat pump air conditioner pressure relief valve comprises a valve body, wherein a hollow cavity is arranged in the middle of the valve body, a sealing seat is arranged at an installation insertion end of the valve body, and an exhaust passage is arranged in the middle of the sealing seat;
a sealing ball, a sliding block and a spring are sequentially arranged in a cavity of the valve body, the sliding block is movably arranged in the cavity, the sliding block is provided with an exhaust through hole, the sealing ball is arranged between the sliding block and the sealing seat, one end of the spring is abutted against the sliding block, and the other end of the spring is limited by a limiting piece;
under the normal working condition, the sliding block extrudes the sealing ball under the action of the pre-tightening force of the spring, and the sealing ball blocks the exhaust passage of the sealing seat and the exhaust through hole of the sliding block; and when the working condition is high, the exhaust passage of the sealing seat and the exhaust through hole of the sliding block are opened.
Furthermore, the end face of the outer end part of the sealing seat is provided with a protruding ring tooth structure, and hard sealing is realized between the protruding ring tooth structure and a counterpart piece to be sealed.
Further, the pressure release valve is installed in the electronic valve body, the sealing seat is a soft metal piece, and the hardness of the sealing seat is smaller than that of the sealing ball and the electronic valve body.
Further, the ring tooth structure has a certain width and is provided with a chamfer angle of 45 degrees.
Further, the outlet of the exhaust passage in the middle of the sealing seat is a tapered hole, and the taper of the tapered hole is 60 degrees.
Further, the diameters of the exhaust channel and the exhaust through hole are smaller than the diameter of the sealing ball.
Further, the section of the sealing seat is T-shaped.
Further, the limiting part is an adjusting nut, the adjusting nut is screwed in the valve body cavity and located at one end of the outer side of the valve body, a through hole is formed in the middle of the adjusting nut, and pressure of the pressure release valve is adjusted by adjusting the position of the adjusting nut.
Further, the sliding block and the adjusting nut are both provided with sleeve structures used for installing the spring, and the end portions of the spring are respectively installed in the sleeves of the sliding block and the adjusting nut.
Furthermore, the valve body is installed in the electronic valve body in a screwing mode through threads, and an annular groove is formed outside the valve body.
The heat pump air conditioner pressure release valve sealing structure is mainly divided into external leakage and internal leakage. The external leakage can reduce refrigerant in the air conditioning system, so that system parts are damaged and lose efficacy under the condition of refrigerant shortage, the external sealing area is the joint of the sealing seat and the electronic valve or the compressor body, the valve body of the pressure relief valve is screwed with torsion through threads, and the protruding ring teeth on the end face of the sealing seat are sealed with the counterpart piece through extrusion, so that the problem of external leakage is solved; and the inside leakage takes place easily for the exhaust through-hole of the exhaust passage of seal receptacle and slider, the utility model discloses the sealed ball extrusion seal receptacle conical surface seals, gives in slider thrust through the adjustment spring compression, and the slider promotes the sealed ball extrusion seal receptacle conical surface and seals. And when the high-pressure working condition is adopted, the exhaust passage of the sealing seat and the exhaust through hole of the sliding block are opened. The safe pressure relief is realized when the pressure of the electronic valve or the compressor system reaches 130bar and 170 bar.
The utility model discloses the structure sets up the structure to the characteristic of bearing high pressure, high temperature resistant, resistant vibration of relief valve, and is poor through the hardness of different materials, adopts to screw up hard sealedly, has other to seal with present traditional electronic valve and adopts non-metallic material sealed, satisfies the high standard operation requirement of current solenoid valve.
Drawings
Fig. 1 is a schematic external structural view of the present invention;
FIG. 2 is a cross-sectional view C-C of FIG. 1;
fig. 3 is a schematic structural view of the sealing seat of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic diagram of the present invention;
FIG. 6 is an enlarged view taken at W in FIG. 3;
in the figure: 1-valve body, 2-slide block, 3-adjusting nut, 4-sealing seat, 5-sealing ball and 6-spring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, a high pressure-resistant high-sealing heat pump air conditioner pressure release valve comprises a valve body 1, a hollow chamber is arranged in the middle of the valve body 1, a sealing seat 4 is arranged at an installation insertion end of the valve body 1, and an exhaust passage is arranged in the middle of the sealing seat 4; a sealing ball 5, a sliding block 2 and a spring 6 are sequentially arranged in a cavity of the valve body 1, the sliding block 2 is movably arranged in the cavity, the sliding block 2 is provided with an exhaust through hole, the sealing ball 5 is arranged between the sliding block 2 and a sealing seat 4, one end of the spring 6 is abutted against the sliding block 2, and the other end of the spring 6 is limited by a limiting piece; the end face of the outer end part of the sealing seat 4 is provided with a convex annular tooth structure, hard sealing is realized between the convex annular tooth structure and a counterpart piece to be sealed, the annular tooth structure has a certain width and is provided with a chamfer of 45 degrees, the outlet of the exhaust passage in the middle of the sealing seat 4 is a conical hole, and the taper of the conical hole is 60 degrees. The pressure release valve is installed in the electronic valve body 1, the sealing seat 4 is a soft metal part, and the hardness of the sealing seat 4 is smaller than that of the sealing ball 5 and the electronic valve body 1. The diameters of the exhaust passage and the exhaust through hole are smaller than the diameter of the sealing ball 5. The section of the sealing seat 4 is T-shaped. The locating part is adjusting nut 3, and adjusting nut 3 connects soon in 1 cavity of valve body to be located the outside one end of valve body 1, be equipped with the through-hole in the middle of adjusting nut 3, carry out the regulation of relief valve pressure through the position of adjusting nut 3, slider 2 and adjusting nut 3 all are equipped with the sleeve structure that is used for installing spring 6, and the tip of spring 6 is installed respectively in slider 2 and adjusting nut 3's sleeve. The valve body 1 is installed in the electronic valve body 1 through screw thread screwing, and an annular groove is formed outside the valve body 1.
Like fig. 5, 6, will the utility model discloses the relief valve is installed on certain solenoid valve, and the external seal is regional for seal receptacle 4 and electronic valve or this body coupling department of compressor, and torsion is screwed up through the screw thread to relief valve body 1, and 4 terminal surfaces of seal receptacle protrusion ring teeth are sealed with adversary's piece through the extrusion, have solved the external leakage problem.
In the specific working process, under the normal working condition, the sliding block 2 extrudes the sealing ball 5 under the action of the pre-tightening force of the spring 6, and the sealing ball 5 blocks the exhaust passage of the sealing seat 4 and the exhaust through hole of the sliding block 2; and under a high-pressure working condition, the exhaust passage of the sealing seat 4 and the exhaust through hole of the sliding block 2 are opened.
The sealing ball 5 extrudes the conical surface of the sealing seat 4 to seal, the thrust is given to the sliding block 2 by adjusting the compression amount of the spring 6, and the sliding block 2 pushes the sealing ball 5 to extrude the conical surface of the sealing seat 4 to seal. And under a high-pressure working condition, the exhaust passage of the sealing seat 4 and the exhaust through hole of the sliding block 2 are opened. The safe pressure relief is realized when the pressure of the electronic valve or the compressor system reaches 130bar and 170 bar.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A high-pressure-resistance high-sealing heat pump air conditioner pressure relief valve is characterized by comprising a valve body, wherein a hollow cavity is arranged in the middle of the valve body, a sealing seat is arranged at an installation insertion end of the valve body, and an exhaust passage is arranged in the middle of the sealing seat;
a sealing ball, a sliding block and a spring are sequentially arranged in a cavity of the valve body, the sliding block is movably arranged in the cavity, the sliding block is provided with an exhaust through hole, the sealing ball is arranged between the sliding block and the sealing seat, one end of the spring is abutted against the sliding block, and the other end of the spring is limited by a limiting piece;
under the normal working condition, the sliding block extrudes the sealing ball under the action of the pre-tightening force of the spring, and the sealing ball blocks the exhaust passage of the sealing seat and the exhaust through hole of the sliding block; and when the working condition is high, the exhaust passage of the sealing seat and the exhaust through hole of the sliding block are opened.
2. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 1, wherein the end face of the outer end of the sealing seat is provided with a protruding ring tooth structure.
3. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 2, wherein the pressure relief valve is installed in the electronic valve body, the sealing seat is made of soft metal, and the hardness of the sealing seat is smaller than that of the sealing ball and the electronic valve body.
4. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 2, wherein the ring gear structure has a certain width and is provided with a chamfer of 45 °.
5. The pressure relief valve for high pressure and high sealing performance of the heat pump air conditioner as claimed in claim 2, wherein the outlet of the exhaust passage in the middle of the sealing seat is a tapered hole, and the taper of the tapered hole is 60 °.
6. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 1, wherein the diameters of the exhaust passage and the exhaust through hole are smaller than the diameter of the sealing ball.
7. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 1, wherein the section of the sealing seat is T-shaped.
8. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 1, wherein said limiting member is an adjusting nut, said adjusting nut is screwed into said valve chamber and located at one end of the outer side of said valve body, a through hole is provided in the middle of said adjusting nut, and the pressure of said pressure relief valve is adjusted by adjusting the position of said adjusting nut.
9. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 8, wherein the sliding block and the adjusting nut are provided with a sleeve structure for mounting the spring, and the end of the spring is mounted in the sleeve of the sliding block and the sleeve of the adjusting nut respectively.
10. The pressure relief valve for the heat pump air conditioner with high pressure resistance and high sealing performance as claimed in claim 1, wherein the valve body is screwed in the electronic valve body through a screw thread, and an annular groove is arranged outside the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914308.2U CN214743587U (en) | 2021-04-29 | 2021-04-29 | High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120914308.2U CN214743587U (en) | 2021-04-29 | 2021-04-29 | High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve |
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| CN214743587U true CN214743587U (en) | 2021-11-16 |
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| CN202120914308.2U Active CN214743587U (en) | 2021-04-29 | 2021-04-29 | High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108099A (en) * | 2021-04-29 | 2021-07-13 | 上海众源燃油分配器制造有限公司 | High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve |
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2021
- 2021-04-29 CN CN202120914308.2U patent/CN214743587U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108099A (en) * | 2021-04-29 | 2021-07-13 | 上海众源燃油分配器制造有限公司 | High-pressure-resistance high-sealing-performance heat pump air conditioner pressure release valve |
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