CN202834111U - Secondary throttling two-way thermostatic expansion valve for vehicle - Google Patents
Secondary throttling two-way thermostatic expansion valve for vehicle Download PDFInfo
- Publication number
- CN202834111U CN202834111U CN 201220595053 CN201220595053U CN202834111U CN 202834111 U CN202834111 U CN 202834111U CN 201220595053 CN201220595053 CN 201220595053 CN 201220595053 U CN201220595053 U CN 201220595053U CN 202834111 U CN202834111 U CN 202834111U
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- valve
- throttling
- expansion valve
- valve body
- throttle
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- Expired - Fee Related
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Abstract
The utility model discloses a secondary throttling two-way thermostatic expansion valve for a vehicle. The thermostatic expansion valve is mainly composed of a valve body, a valve core, a valve needle, a transfer rod, a sealing screw cap, a valve port throttling channel, a throttling orifice and the like, wherein the passage cross section of the throttling orifice is smaller than the maximal cross section of the valve port throttling channel, and the valve port throttling channel is a conical annular pipe for throttling. The thermostatic expansion valve is reasonable in design, simple in structure, capable of realizing two-way operation, is reliable in temperature sensing, high in adjustment sensitivity and good in sealability; and a high-pressure liquid-state refrigerant is subject to secondary throttling in the valve, so that the problems of fluctuation and oscillation commonly existing in the thermostatic expansion valve can be effectively solved, and the energy efficiency ratio and refrigeration (heat) quantity of a system are improved. The secondary throttling two-way thermostatic expansion valve for the vehicle is suitable to be a throttling element for a refrigeration system of an automobile air conditioning device.
Description
Technical field
The utility model relates to the heating power expansion valve technical field, specifically a kind of automobile-used second throttle bidirectional heat expansion valve.
Background technique
Existing automobile-used heating power expansion valve for the throttling of automobile air controlling device refrigeration system, some is only experienced automatic temperature control valve mouth throttling passage cross section by bellows and carries out a throttling, before the throttling and the channel cross-section after the throttling all greater than the maximum cross-section of valve port throttling passage, be difficult to fundamentally overcome the ubiquitous fluctuation of heating power expansion valve and vibration, cause systematic energy efficiency ratio and refrigeration (heat) amount to descend.Some makes the heating power expansion valve sealability relatively poor because of the defective on the structural design, regulates sensitivity low, and can only one-way only operation.Though some heating power expansion valve can effectively be realized two-way working, complicated structure, manufacture cost is high.
The model utility content
Technical problem to be solved in the utility model is to overcome the defective that above-mentioned prior art exists, provide a kind of reasonable in design, simple in structure, can effectively realize bidirectional throttle, can not produce at work fluctuation and vibration, and refrigeration (heat) amount is large, Energy Efficiency Ratio is high, good seal performance is regulated highly sensitive automobile-used second throttle bidirectional heat expansion valve.
For this reason, the utility model adopts following technological scheme: automobile-used second throttle bidirectional heat expansion valve, the valve body that comprises upper end portion band bellows, place liquid inlet pipe and the drain pipe at two ends, the valve body lower portion left and right sides, place valve seat orifice and spool between liquid inlet pipe and the drain pipe, place transmission bar and needle between bellows and the spool, place the balance spring of spool bottom band Regulation spring seat, the valve port throttling passage, passage etc. after valve port throttling prepass and the valve port throttling, passage is provided with throttle orifice after the described valve port throttling, the channel cross-section of this throttle orifice is less than the maximum cross-section of valve port throttling passage, the bottom of the bellows in the described valve body is provided with return gas channel, the two ends, the left and right sides of return gas channel are provided with into muffler and go out muffler, the bottom of return gas channel is embedded with the positioning seat with the balance section sealing circle, the balance section sealing circle places the bottom of positioning seat, the bottom of described valve body is provided with sealing nut, is provided with seal ring between the lower end surface of described bellows and the valve body.
As the further of technique scheme improved and replenish, the utility model is taked following technical measures:
Described automobile-used second throttle bidirectional heat expansion valve transmits between bar and the needle and is provided with the transmission steel ball.
Described automobile-used second throttle bidirectional heat expansion valve is provided with rubber seal between Regulation spring seat and the valve body.
Described automobile-used second throttle bidirectional heat expansion valve is provided with seal ring between the lower end surface of sealing nut and valve body.
Described automobile-used second throttle bidirectional heat expansion valve is provided with rubber seal between the lower plane of bellows and the valve body.
The beneficial effects of the utility model are:
1, the channel cross-section of throttle orifice is less than the maximum cross-section of valve port throttling passage, add that valve seat orifice and spool all are made as taper shape, make its throttle style become the throttling of circular cone ring pipe, the changes in flow rate of adjustment process is steady, high pressure liquid refrigerant passes through second throttle therein, can effectively solve the ubiquitous ripple of heating power expansion valve or vibration, satisfy refrigeration or heat different flow demand under the condition, improve Energy Efficiency Ratio and refrigeration (heat) amount of refrigeration system.
2, the double sealing structure between sealing nut and valve body, Regulation spring seat and the valve body and the double sealing structure between bellows and the valve body have guaranteed the good sealability of valve and have regulated sensitivity.
3, be embedded at balance section sealing circle and the positioning seat thereof of the return gas channel bottom of valve body, not only can guarantee the sealing between liquid inlet and outlet pipe and the return gas channel, and can guarantee reverse operation the time, make high-pressure refrigerant can not pass to bellows, only act on that diameter is very little, also very little needle or transmit bar of sectional area, improve sealability, make reverse operation become possibility.
4, but the transmission steel ball guarantee effect between transmission bar and the needle improves the adjusting sensitivity of valve in the bellows internal pressure of needle and the central lines of balance spring power and needle.
The utility model is reasonable in design, simple in structure, can effectively realize two-way working, and temperature-sensitive is reliable, regulate highly sensitive, good seal performance, high pressure liquid refrigerant passes through second throttle therein, can effectively solve the ubiquitous fluctuation of heating power expansion valve and vibration, improve Energy Efficiency Ratio and refrigeration (heat) amount of system.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Among the figure, the 1-valve body, 2-goes out muffler, the 3-valve seat orifice, the 4-spool, 5-liquid inlet pipe, 6-valve port throttling prepass, 7, the 25-rubber seal, 8,24-seal ring, 9-sealing nut, 10-Regulation spring seat, 11-balance spring, 12-valve port throttling passage, passage after the throttling of 13-valve port, 14-throttle orifice, 15-drain pipe, 16-advances muffler, the 17-needle, and 18-balance section sealing circle, 19-transmits steel ball, the 20-positioning seat, 21-transmits bar, 22-return gas channel, 23-bellows.
Embodiment
Automobile-used second throttle bidirectional heat expansion valve as shown in drawings, mainly by the valve body 1 of upper end portion band bellows 23, place two ends, the left and right sides, valve body 1 bottom liquid inlet pipe 5 and drain pipe 15, place valve seat orifice 3 and spool 4 between liquid inlet pipe 5 and the drain pipe 15, place after transmission bar 21 and the needle 17 between bellows 23 and the spool 4, the balance spring 11 that places spool 4 bottom band Regulation spring seats 10, valve port throttling passage 12, valve port throttling prepass 6 and the valve port throttling passage 13 etc. to consist of.Passage 13 is provided with throttle orifice 14 after the described valve port throttling, the channel cross-section of this throttle orifice 14 is less than the maximum cross-section of valve port throttling passage 12, described valve seat orifice 3 and spool 4 are taper shape, make its throttle style become the throttling of circular cone ring pipe, the changes in flow rate of adjustment process is steady, high pressure liquid refrigerant passes through second throttle therein, can effectively solve the ubiquitous fluctuation of heating power expansion valve and vibration, improves Energy Efficiency Ratio and refrigeration (heat) amount of system.The bottom of the bellows 23 in the described valve body 1 is provided with return gas channel 22, the two ends, the left and right sides of return gas channel 22 are provided with into muffler 16 and go out muffler 2, the bottom of return gas channel 22 is embedded with the positioning seat 20 with balance section sealing circle 18, and balance section sealing circle 18 places the bottom of positioning seat 20.Be provided with between described transmission bar 21 and the needle 17 and transmit steel ball 19, be provided with seal ring 24 between the lower end surface of described bellows 23 and the valve body 1, be provided with rubber seal 25 between the lower plane of bellows 23 and the valve body 1.The bottom of described valve body 1 is provided with sealing nut 9, is provided with seal ring 8 between the lower end surface of sealing nut 9 and valve body 1, is provided with rubber seal 7 between Regulation spring seat 10 and the valve body 1.
Claims (5)
1. automobile-used second throttle bidirectional heat expansion valve, the valve body (1) that comprises upper end portion band bellows (23), place liquid inlet pipe (5) and the drain pipe (15) at two ends, valve body (1) left and right sides, bottom, place valve seat orifice (3) and spool (4) between liquid inlet pipe (5) and the drain pipe (15), place transmission bar (21) and needle (17) between bellows (23) and the spool (4), place the balance spring (11) of spool (4) bottom band Regulation spring seat (10), valve port throttling passage (12), passage (13) etc. after valve port throttling prepass (6) and the valve port throttling, it is characterized in that, passage (13) is provided with throttle orifice (14) after the described valve port throttling, the channel cross-section of this throttle orifice (14) is less than the maximum cross-section of valve port throttling passage (12), described valve seat orifice (3) and spool (4) are taper shape, the bottom of the bellows (23) in the described valve body (1) is provided with return gas channel (22), the two ends, the left and right sides of described return gas channel (22) are provided with into muffler (16) and go out muffler (2), the bottom of this return gas channel (22) is embedded with the positioning seat (20) of band balance section sealing circle (18), described balance section sealing circle (18) places the bottom of positioning seat (20), the bottom of described valve body (1) is provided with sealing nut (9), is provided with seal ring (24) between the lower end surface of described bellows (23) and the valve body (1).
2. automobile-used second throttle bidirectional heat expansion valve according to claim 1 is characterized in that, is provided with between described transmission bar (21) and the needle (17) to transmit steel ball (19).
3. automobile-used second throttle bidirectional heat expansion valve according to claim 1 is characterized in that, is provided with rubber seal (7) between described Regulation spring seat (10) and the valve body (1).
4. automobile-used second throttle bidirectional heat expansion valve according to claim 1 is characterized in that, is provided with seal ring (8) between the lower end surface of described sealing nut (9) and valve body (1).
5. automobile-used second throttle bidirectional heat expansion valve according to claim 1 is characterized in that, is provided with rubber seal (25) between the lower plane of described bellows (23) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595053 CN202834111U (en) | 2012-10-31 | 2012-10-31 | Secondary throttling two-way thermostatic expansion valve for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220595053 CN202834111U (en) | 2012-10-31 | 2012-10-31 | Secondary throttling two-way thermostatic expansion valve for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834111U true CN202834111U (en) | 2013-03-27 |
Family
ID=47945820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220595053 Expired - Fee Related CN202834111U (en) | 2012-10-31 | 2012-10-31 | Secondary throttling two-way thermostatic expansion valve for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834111U (en) |
-
2012
- 2012-10-31 CN CN 201220595053 patent/CN202834111U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |