CN101865310A - Heating power expansion valve - Google Patents
Heating power expansion valve Download PDFInfo
- Publication number
- CN101865310A CN101865310A CN200910131653A CN200910131653A CN101865310A CN 101865310 A CN101865310 A CN 101865310A CN 200910131653 A CN200910131653 A CN 200910131653A CN 200910131653 A CN200910131653 A CN 200910131653A CN 101865310 A CN101865310 A CN 101865310A
- Authority
- CN
- China
- Prior art keywords
- heating power
- power expansion
- expansion valve
- screw bolt
- valve
- 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.)
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Abstract
The invention relates to a heating power expansion valve, which belongs to the technical field of the throttling of a vapor compression type refrigeration system. The invention is applicable to various heating power expansion valves in one-way work and two-way work. A steel ball (5-2) is arranged between a sealing ring seat (5-1) and a regulation screw post (5-4), the invention can ensure that a balance spring (3) and a valve core (2) can not rotate in the assembly and debugging process, i.e. the invention can ensure that the center of the valve core (2) and the center of a valve hole (1-1) can not be deviated, and the regulation performance of the heating power expansion valve is improved.
Description
Technical field
The present invention relates to a kind of heating power expansion valve, belong to the throttling technology field in the vapour compression refrigeration system, be applicable to the heating power expansion valve of various one-way only operations and two-way working.
Background technique
Existing heating power expansion valve, because regulating double-screw bolt and packing holder is one, in assembling, debug process, when rotating the adjusting double-screw bolt for the adjustment spring force, by the frictional force that balance spring power produces, balance spring and spool are rotated, with the rotation of regulating double-screw bolt because balance spring both ends of the surface not parallel and both ends of the surface and spring center line out of plumb, cause center spool and valve opening misalignment, cause the adjusting function of heating power expansion valve to descend.
Wherein, existing heating power expansion valve is for addressing the aforementioned drawbacks, and when guaranteeing the adjustment spring force, spool can not rotate, and has adopted various baroque technological schemes.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is low, can guarantee assembling, spool can not rotate the heating power expansion valve that center spool and valve opening center can not be departed from the debug process.
Heating power expansion valve of the present invention is made up of valve body, valve opening, spool, balance spring, O shape rubber seal etc., it is characterized in that being provided with steel ball or sharp cone distal boss in the central position between packing holder and the adjusting double-screw bolt.
Described steel ball places packing holder or regulates in the center hole of double-screw bolt, and the top of steel ball is outside center hole.
Described sharp cone distal boss and packing holder or adjusting double-screw bolt are one.
Heating power expansion valve of the present invention, owing between adjusting double-screw bolt and packing holder, be provided with steel ball or sharp cone distal boss, in assembling, debug process, when double-screw bolt is regulated in rotation, packing holder, balance spring and spool can not rotate, and can guarantee that center spool and valve opening center do not depart from.
Description of drawings
Fig. 1 is the structure of existing heating power expansion valve.
Fig. 2,3 is two embodiments of the present invention.
Shown in the figure:
The 1-valve body, the 1-1-valve opening, the 2-spool, the 3-balance spring, 4-O shape rubber seal, 5-regulates the double-screw bolt combination, the 5-1-packing holder, the 5-2-steel ball, 5-3-sharp cone distal boss, 5-4-regulates double-screw bolt.
Embodiment
By heating power expansion valve of the present invention shown in Figure 2, between packing holder 5-1 and adjusting double-screw bolt 5-4, be provided with steel ball 5-2, in assembling, in the debug process, for the active force of adjustment spring 3 rotates when regulating double-screw bolt 5-4, because regulating the upper-end surface of double-screw bolt 5-4 is that central point contacts with steel ball 5-2, its arm of force is almost nil, again because steel ball 5-2 is metallic material with adjusting double-screw bolt 5-4, friction factor is very little, surface friction drag is also very little, and running torque is also almost nil, simultaneously, because O shape rubber seal 4 inboard and packing holder 5-1, the outside is tight the contact with valve body 1, and the rubber friction coefficient is very big, and the surface friction drag of generation is also very big, and surface friction drag to the arm of force at packing holder 5-1 center is the interior outer radius of packing holder 5-1 in addition, make its rotation, bigger running torque must be arranged.Therefore, when double-screw bolt 5-4 is regulated in rotation, the running torque that passes to packing holder 5-1 by steel ball 5-2 is almost nil, packing holder 5-1 can not rotate, place the balance spring 3 and the spool 2 on packing holder 5-1 top also can not rotate, double-screw bolt 5-4 is regulated in rotation only makes packing holder 5-1 move up and down, and changes the spring force of balance spring 3, assurance spool 2 centers and valve opening 1-1 center can not departed from because double-screw bolt 5-4 is regulated in rotation, and the adjusting function of heating power expansion valve is improved.
Claims (3)
1. heating power expansion valve, form by valve body (1), valve opening (1-1), spool (2), balance spring (3), O shape rubber seal (4) etc., it is characterized in that being provided with steel ball (5-2) or sharp cone distal boss (5-3) in the central position between packing holder (5-1) and the adjusting double-screw bolt (5-4).
2. by the described heating power expansion valve of claim 1, its feature is that also steel ball (5-2) places in the center hole of packing holder (5-1) or adjusting double-screw bolt (5-4), and the top of steel ball (5-2) is outside center hole.
3. by the described heating power expansion valve of claim 1, its feature is that also sharp cone distal boss (5-3) and packing holder (5-1) or adjusting double-screw bolt (5-4) are one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910131653A CN101865310A (en) | 2009-04-14 | 2009-04-14 | Heating power expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910131653A CN101865310A (en) | 2009-04-14 | 2009-04-14 | Heating power expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101865310A true CN101865310A (en) | 2010-10-20 |
Family
ID=42957146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910131653A Pending CN101865310A (en) | 2009-04-14 | 2009-04-14 | Heating power expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091426A (en) * | 2014-05-08 | 2015-11-25 | Tcl空调器(中山)有限公司 | Throttle valve and air conditioner adopting same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911099B1 (en) * | 1968-06-03 | 1974-03-14 | ||
| CN2599357Y (en) * | 2002-09-26 | 2004-01-14 | 邓永林 | Thermodynamic expansion valve |
| US20070194140A1 (en) * | 2006-02-17 | 2007-08-23 | Emerson Electric Co. | Thermostatic expansion valve |
| CN101377239A (en) * | 2007-08-30 | 2009-03-04 | 浙江春晖智能控制股份有限公司 | Heating power expansion valve |
-
2009
- 2009-04-14 CN CN200910131653A patent/CN101865310A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4911099B1 (en) * | 1968-06-03 | 1974-03-14 | ||
| CN2599357Y (en) * | 2002-09-26 | 2004-01-14 | 邓永林 | Thermodynamic expansion valve |
| US20070194140A1 (en) * | 2006-02-17 | 2007-08-23 | Emerson Electric Co. | Thermostatic expansion valve |
| CN101377239A (en) * | 2007-08-30 | 2009-03-04 | 浙江春晖智能控制股份有限公司 | Heating power expansion valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091426A (en) * | 2014-05-08 | 2015-11-25 | Tcl空调器(中山)有限公司 | Throttle valve and air conditioner adopting same |
| CN105091426B (en) * | 2014-05-08 | 2017-11-03 | Tcl空调器(中山)有限公司 | Choke valve and the air conditioner using the choke valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CHUNHUI INTELLIGENT CONTROL CO., LTD., ZHEJIANG Free format text: FORMER OWNER: DENG YONGLIN Effective date: 20111208 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100095 HAIDIAN, BEIJING TO: 312300 SHAOXING, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20111208 Address after: 288 No. 312300 Zhejiang city of Shangyu province Chunhui Industrial Avenue Applicant after: Zhejiang Chunhui Intelligent Control Co., Ltd. Address before: 100095, No. 1, building 54, 3 ring mountain village, Wenquan Town, Beijing, Haidian District Applicant before: Deng Yonglin |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101020 |