CN206299894U - A kind of bellows prepressing device of heating power expansion valve - Google Patents
A kind of bellows prepressing device of heating power expansion valve Download PDFInfo
- Publication number
- CN206299894U CN206299894U CN201621397450.XU CN201621397450U CN206299894U CN 206299894 U CN206299894 U CN 206299894U CN 201621397450 U CN201621397450 U CN 201621397450U CN 206299894 U CN206299894 U CN 206299894U
- Authority
- CN
- China
- Prior art keywords
- bellows
- fixed seat
- expansion valve
- heating power
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
The utility model is related to a kind of bellows prepressing device of heating power expansion valve, the heating power expansion valve throttling technology field in category vapor compression type refrigerating system, it is adaptable to the precompressed after various thermostatic expansion valve bellows fillings.It is main to be made up of base plate (1), bellows fixed seat (2), sealing round section joint ring (3), cylinder (4), compact heap (5), bellows (6), sealing "O"-ring (7), pressure sensor (8) etc..It is characterized in that：The bellows (6) is threadably secured with bellows fixed seat (2), and the bellows fixed seat (2) is fixed by compact heap (5) by cylinder (4).Gases at high pressure are filled with by base plate air admission hole (11), bellows fixed seat air admission hole (24) in bellows (6), gases at high pressure directly act on bellows (6) interior diaphragm (61) without being influenceed by other external force, so that diaphragm (61) pressure is stable, precompressed uniformity is good.
Description
Technical field
The utility model is related to a kind of bellows prepressing device of heating power expansion valve, the heat in category vapor compression type refrigerating system
Power expansion valve throttling technology field, it is adaptable to the precompressed after various thermostatic expansion valve bellows fillings.
Background technology
Heating power expansion valve plays reducing pressure by regulating flow, regulation flow, keeps suitable as the critical component in automotive air-conditioning system
The effect of the degree of superheat, the quality of its performance directly affects the performance of air-conditioning system.Bellows as heating power expansion valve core component,
It is the direct driving force source of heating power expansion valve work, the quality of its performance directly affects the performance and air conditioning for automobiles of heating power expansion valve
The performance of system.The refrigerant of filling is the source of bellows power in bellows, due to bellows be welded by various welding manners and
Into, if welding existing defects, there is small slow leakage after refrigerant charging, tested in follow-up heating power expansion valve assembling
Cannot be detected in journey, finally flow into automobile main frame maker, subsequently during the long-term use of automotive air-conditioning system, heating power expansion valve
Refrigerant in bellows has finally all been leaked, and thermal expansion defective valve causes system jams, air-conditioning system not to be freezed, and causes visitor
Complain at family.
The air conditioning for automobiles that filling refrigerant in bellows inside is leaked and caused slowly can not be completely eliminated because static state constant-temperature is preserved
System jams and not freezing for causing, it is to carry out constant temperature preservation again after bellows precompressed bellows to be solved at present and leaks general fashion slowly.
Existing bellows precompressed mode is mechanical precompressed, device as shown in figure 1, main by base plate 1, base 2, bellows 3, briquetting 4, bullet
Spring 5, briquetting fixed plate 6, block 7, cam 8 etc. are constituted.Bellows pre-compaction process：Bellows 3 is put into base 2, cam 8 rotation with
Block 7 is contacted, and block 7 drives briquetting fixed plate 6 downwards, and the drive briquetting 4 of briquetting fixed plate 6 is carried out to the inner limited block 31 of bellows 3
Precompressed, makes diaphragm 32 move down a segment distance, and cam 8 continues to rotate to peak, and the resilience of spring 5 drives briquetting fixed plate 6
Upwards, briquetting fixed plate 6 drives briquetting 4 up, and diaphragm 32 is returned to original position in the presence of film closes 3 internal refrigeration storage agent,
Complete a pre-compaction process.Because the stroke and the size of bellows 3 of mechanical prepressing device deposit error, cause the stroke of diaphragm 32 not
Certainty, stroke is excessive, can damage diaphragm 32, and stroke is too small, and weld defect can not fully be exposed, and pre-compressed effect is failed to understand
It is aobvious, so as to the filling slow leakage problem of refrigerant in bellows inside cannot be solved thoroughly.
The content of the invention
The purpose of the bellows prepressing device of heating power expansion valve described in the utility model is that and solves the above problems and not
Foot, there is provided a kind of new bellows prepressing device, its compact conformation, pre-compressed effect is obvious, it is possible to resolve bellows inside filling refrigeration
The slow leakage problem of agent, is widely used in various thermostatic expansion valve bellows precompressed.
Bellows prepressing device of the present utility model, mainly including cylinder, base plate, Positioning screw, bellows fixed seat, bellows,
Sealing round section joint ring, compact heap etc., it is characterised in that：The bellows is threadably secured with bellows fixed seat, and the bellows is fixed
Seat is fixed by compact heap by cylinder-pressing.
The utility model also includes following additional technical feature：
The bellows is sealed with bellows fixed seat, bellows fixed seat and base plate by sealing round section joint ring.
The bellows fixed seat is solid comprising bellows round section joint ring dedicated slot, base plate sealing round section joint ring dedicated slot, bellows
Determine screw thread, location hole, bellows fixed seat air admission hole, bellows fixed seat seal face, bellows fixed seat body, the location hole is half
Circle irregularly-shaped hole.
The base plate includes two Positioning screws, base plate air admission holes, and the Positioning screw is fillister head screw, and both sides are symmetrical
Arrangement.
The compact heap includes accommodating chamber, compact heap seal face, cylinder fixing hole.
Gases at high pressure, pressure sensor and film are filled with by base plate air admission hole, bellows fixed seat air admission hole in the bellows
Box fixed seat is connected.
The utility model uses gas precompressed mode, simulates heating power expansion valve actual operating mode, it is ensured that diaphragm precompressed
Uniformity.Bellows is fixed by bellows with bellows fixed seat and is screwed, and is entered by base plate air admission hole, bellows fixed seat in bellows
Stomata is filled with gases at high pressure, and gases at high pressure directly act on bellows interior diaphragm without being influenceed by other external force, so that diaphragm institute
Be stressed stabilization, and precompressed uniformity is good.Entered with bellows fixed seat, bellows fixed seat and base plate sealing round section joint ring by bellows
Row sealing, it is ensured that the sealing of bellows and bellows fixed seat, bellows fixed seat and base plate.It is special by bellows round section joint ring
Groove, base plate sealing round section joint ring dedicated slot, for sealing round section joint ring positioning, improve bellows and bellows fixed seat, bellows fixed seat
With base plate efficiency of assembling, it is ensured that its sealing.Bellows fixed seat is fixed by compact heap seal face by cylinder-pressing, and accommodating chamber is held
Receive bellows, the sealing of bellows fixed seat and base plate is ensured with the interference of sealing round section joint ring.Fixed with bellows by pressure sensor
Seat connection, makes pressure sensor show the pressure in bellows fixed seat, pressurize certain hour, by pressure differential detection bellows argon arc welding
Leakage.By the symmetrical fillister head screw of base, make the accurate positioning of bellows fixed seat and base.Bellows fixed seat is positioned
Hole is semicircle irregularly-shaped hole, makes cheese head screw quick with the accurate positioning of location hole.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is a kind of bellows filling device structure chart of known heating power expansion valve；
1- base plates, 2- bases, 3- bellows, 4- briquettings, 5- springs, 6- briquettings fixed plate, 7- blocks,
8- cams, 31- limited blocks, 32- diaphragms.
Fig. 2 is the bellows prepressing device structure chart of the utility model heating power expansion valve.
1- base plates, 2- bellows fixed seat, 3- sealings round section joint ring, 4- cylinders, 5- compact heaps, 6- bellows, 7- sealing " O " shapes
Circle, 8- pressure sensors.
Fig. 3 is the structure chart of base plate 1 in the bellows prepressing device of the utility model heating power expansion valve.
11- base plates air admission hole, 12- Positioning screws.
Fig. 4 is the structure chart of bellows fixed seat 2 in the bellows prepressing device of the utility model heating power expansion valve.
21- location holes, 22- bellows "O"-rings dedicated slot, 23- bellows fix screw thread, 24- bellows fixed seat air inlets
Hole, 25- bases sealing "O"-ring dedicated slot, 26- bellows fixed seats seal face, 27- bellows fixed seat bodies.
Fig. 5 is the structure chart of compact heap 5 in the bellows prepressing device of the utility model heating power expansion valve.
51- cylinders fixing hole, 52- accommodating chambers, 53- compact heap seal faces.
Fig. 6 is the pre- structure chart of die pressing product bellows 6 of the utility model heating power expansion valve.
61- diaphragms, 62- limited blocks.
Specific embodiment
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, the utility model mainly by base plate 1, bellows fixed seat 2, sealing round section joint ring 3,
The compositions such as cylinder 4, compact heap 5, bellows 6, sealing "O"-ring 7, pressure sensor 8.The bellows 6 passes through with bellows fixed seat 2
It is screwed, bellows fixed seat 2 is fixed by compact heap 5 by cylinder 4.Bellows 6 is with bellows fixed seat 2 by sealing " O "
Shape circle 3 is sealed, and bellows fixed seat 2 is sealed with base plate 1 by sealing round section joint ring 7.Bellows fixed seat 2 includes bellows
Sealing round section joint ring dedicated slot 22, base plate sealing round section joint ring dedicated slot 25, bellows is fixed screw thread 23, location hole 21, bellows and is fixed
Seat air admission hole 24, bellows fixed seat seal face 26, bellows fixed seat body 27, location hole 21 are semicircle irregularly-shaped hole.Base plate is included
Two Positioning screws 12, base plate air admission holes 11, Positioning screw 12 are fillister head screw, and both sides are arranged symmetrically.Compact heap 5 includes appearance
Receive chamber 52, compact heap seal face 53, cylinder fixing hole 51.Pass through base plate air admission hole 11, bellows fixed seat air admission hole 24 in bellows 6
Gases at high pressure are filled with, pressure sensor 8 is connected with bellows fixed seat 2.
Bellows pre-compaction process is as follows：
Bellows 6, is threaded into bellows fixed seat 2 by unlatching equipment, and bellows fixed seat 2 is entered by Positioning screw 12
Row correcting positioning carries out bottom surface and fits with base plate 1.By bellows 6 and bellows fixed seat 2 with seal round section joint ring 3 sealed, film
Box fixed seat 2 is sealed with base plate 1 with sealing round section joint ring 7, it is ensured that bellows 6 and bellows fixed seat 2, bellows fixed seat 2 and bottom
The sealing of plate 1.Cylinder 4 is descending to drive compact heap 5 to compress bellows fixed seat 2.Bellows fixed seat 2 passes through compact heap seal face 53
It is fixed by cylinder 4, accommodating chamber 52 accommodates bellows 6.Gases at high pressure pass through bellows fixed seat air admission hole from base plate air admission hole 11
24 air inlets, are connected by bellows fixed seat 2 with pressure sensor 8, pressure sensor 8 is shown the pressure in bellows fixed seat 2
Power, pressurize certain hour, then leaked by the argon arc welding of pressure differential detection bellows 6.Gases at high pressure act on film by bellows fixed seat 2
Limited block 62 in box 6 carries out precompressed, diaphragm 61 is moved up a segment distance.Gases at high pressure are closed, diaphragm 61 is closed 6 in film
Original position is returned in the presence of internal refrigeration storage agent, a pre-compaction process is completed.Because gas prepressing device does not receive the chi of bellows 6
Very little error influence, the Compression Stability of bellows 6 will not also damage diaphragm 62, and precompressed uniformity is good, and pre-compressed effect is obvious.
Above example is only used to illustrative and not limiting the technical solution of the utility model.Do not depart from the utility model spirit and
Any modification or partial replacement of scope, all should cover in the middle of right of the present utility model.
Claims (6)
1. the bellows prepressing device of a kind of heating power expansion valve, including base plate (1), bellows fixed seat (2), sealing round section joint ring (3),
Cylinder (4), compact heap (5), bellows (6), sealing round section joint ring (7), pressure sensor (8), it is characterised in that：The bellows (6)
It is threadably secured with bellows fixed seat (2), the bellows fixed seat (2) is fixed by compact heap (5) by cylinder (4).
2. the bellows prepressing device of heating power expansion valve according to claim 1, it is characterised in that：The bellows (6) and film
Box fixed seat (2) is sealed by sealing round section joint ring (3), and bellows fixed seat (2) is with base plate (1) by sealing round section joint ring
(7) sealed.
3. the bellows prepressing device of heating power expansion valve according to claim 1, it is characterised in that：The bellows fixed seat
(2) comprising bellows round section joint ring dedicated slot (22), base plate seal round section joint ring dedicated slot (25), bellows fix screw thread (23),
Location hole (21), bellows fixed seat air admission hole (24), bellows fixed seat seal face (26), bellows fixed seat body (27), it is described
Location hole (21) is semicircle irregularly-shaped hole.
4. the bellows prepressing device of heating power expansion valve according to claim 1, it is characterised in that：The base plate (1) includes
Two Positioning screws (12), base plate air admission holes (11), the Positioning screw (12) is fillister head screw, and both sides are arranged symmetrically.
5. the bellows prepressing device of heating power expansion valve according to claim 1, it is characterised in that：Compact heap (5) bag
Containing accommodating chamber (52), compact heap seal face (53), cylinder fixing hole (51).
6. the bellows prepressing device of heating power expansion valve according to claim 1, it is characterised in that：Lead in the bellows (6)
Cross base plate air admission hole (11), bellows fixed seat air admission hole (24) and be filled with gases at high pressure, pressure sensor (8) and bellows fixed seat
(2) it is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397450.XU CN206299894U (en) | 2016-12-12 | 2016-12-12 | A kind of bellows prepressing device of heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621397450.XU CN206299894U (en) | 2016-12-12 | 2016-12-12 | A kind of bellows prepressing device of heating power expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299894U true CN206299894U (en) | 2017-07-04 |
Family
ID=59215235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621397450.XU Active CN206299894U (en) | 2016-12-12 | 2016-12-12 | A kind of bellows prepressing device of heating power expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206299894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758064A (en) * | 2020-05-19 | 2021-12-07 | 法雷奥汽车空调湖北有限公司 | Electronic expansion valve and thermal management assembly |
-
2016
- 2016-12-12 CN CN201621397450.XU patent/CN206299894U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758064A (en) * | 2020-05-19 | 2021-12-07 | 法雷奥汽车空调湖北有限公司 | Electronic expansion valve and thermal management assembly |
| CN113758064B (en) * | 2020-05-19 | 2023-07-21 | 法雷奥汽车空调湖北有限公司 | Electronic expansion valve and thermal management assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105675221B (en) | It is a kind of to measure system and method for the sealing material low temperature seal than pressing performance parameter | |
| Ma et al. | Experimental investigation of the discharge valve dynamics in a reciprocating compressor for trans-critical CO2 refrigeration cycle | |
| CN105181267B (en) | For testing the device of Bolted Flanged Connection system leak rate | |
| CN114001882B (en) | Automobile thermostat shell airtight detection equipment and detection method thereof | |
| CN206299894U (en) | A kind of bellows prepressing device of heating power expansion valve | |
| JPH0211870A (en) | Method and device for inspecting function of cryopump operated by refrigerator | |
| CN108593216B (en) | Portable dynamic comparison positive pressure leak hole calibration device and method | |
| CN116907887A (en) | System and method for testing performance of Stirling engine heat regenerator and layered heat regenerator thereof | |
| CN103388943A (en) | Method and equipment for filling liquid in temperature sensing bulb of thermostatic expansion valve | |
| CN110686841B (en) | Air tightness detection device and detection method for double-cavity structure | |
| CN108044547A (en) | A kind of water pump casing for vehicle cramp for verifying and checking | |
| CN202939048U (en) | G-M refrigerator regenerator performance tester | |
| JP3348147B2 (en) | Airtightness inspection machine for temperature control part of temperature type expansion valve | |
| CN209727383U (en) | A kind of air-conditioning compressor cylinder device for detecting sealability | |
| CN114136609A (en) | Method for detecting inner and outer sealing performance of gasket | |
| CN116256163B (en) | Life test device for diaphragm production of diaphragm compressor | |
| CN104713894A (en) | Nuclear magnetic high-pressure isothermal adsorption device | |
| CN101701900B (en) | Device and method for testing absorbance by electric quantity method | |
| CN209559427U (en) | Seal planar defect air-tightness detection device | |
| CN105865719A (en) | Rotary compressor internal gas leakage test platform and test method thereof | |
| CN205538107U (en) | Inside gaseous leak testing platform of rotary compressor | |
| CN206726581U (en) | A kind of critical condition observation and p v T relationships measure teaching experimental base | |
| CN205352623U (en) | Leakage quantity testing arrangement is let out to ultra -low temperature balanced seal ring | |
| CN213517153U (en) | Rubber product detects with no rotor vulcameter | |
| CN216695439U (en) | Snow car transmission housing test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |