CN202229491U - Thermal expansion valve power head automatic cross filling device - Google Patents
Thermal expansion valve power head automatic cross filling device Download PDFInfo
- Publication number
- CN202229491U CN202229491U CN2011202776165U CN201120277616U CN202229491U CN 202229491 U CN202229491 U CN 202229491U CN 2011202776165 U CN2011202776165 U CN 2011202776165U CN 201120277616 U CN201120277616 U CN 201120277616U CN 202229491 U CN202229491 U CN 202229491U
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- China
- Prior art keywords
- cover plate
- expansion valve
- power head
- bottom electrode
- lower cover
- Prior art date
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- Withdrawn - After Issue
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Abstract
The utility model discloses a thermal expansion valve power head automatic cross filling device. Both sides of an upper cover plate and a lower cover plate are respectively and fixedly connected through support plates. An upper cylinder is disposed on the upper cover plate, a piston rod of the upper cylinder penetrates through the upper cover plate and then is connected with the upper end of an upper insulating block, and the lower end of the upper insulating block is connected with an upper conducting block. The small end of an upper electrode block is embedded in a center hole of the upper conducting block, the inner side of a support plate is provided with a sliding rail perpendicular to the lower cover plate, and a guide rail on one side of the upper insulating block is connected with the sliding rail of the lower cover plate in sliding mode. A locating seat is installed on the lower cover plate, and a lower electrode block of a lower electrode assembly penetrates through the lower cover plate and is connected with the lower end of the locating seat. The thermal expansion valve power head automatic cross filling device achieves automation of thermal expansion valve power head filling, and a programmable logic controller (PLC) automatically controls filled gas and amount according to preset parameters, thereby enabling a filling process to be automated. Therefore, the thermal expansion valve power head automatic cross filling device ensures consistency and stability of product performance, improves labor efficiency and greatly reduces labor cost and intensity.
Description
Technical field
The utility model relates to a kind of thermostatic expansion valve power head filling device, especially relates to the automatic cross charge device of a kind of thermostatic expansion valve power head.
Background technology
Unit head at the idle call heating power expansion valve fills in the process; Need charge into a kind of and refrigerant medium system matches is called pure gas and fills; Be called cross charge if pour the mixture of a kind of refrigerant and inert gas, no matter single fill and mix fill, the gas flow that charges into is required very strict; Currently mainly fill, can not guarantee to charge into the amount of gas and the uniformity of entire block by the gas charge of manual control at the manual pure gas of usefulness.
Summary of the invention
The purpose of the utility model is to provide a kind of thermostatic expansion valve power head automatic cross charge device, can realize the automation of cross charge and filled process.
The technical scheme that the utility model adopts is:
One, a kind of thermostatic expansion valve power head cross charge device:
The both sides of upper cover plate and lower cover are fixedly connected with gripper shoe respectively; Upper cylinder is installed above the upper cover plate; The piston rod of upper cylinder is connected with the upper end of last collets after passing upper cover plate, and the lower end of last collets is connected with last conducting block, and top electrode piece small end embeds to be gone up in the conducting block centre bore; A gripper shoe inboard is provided with the slide rail of vertical and lower cover; The slide rail of last collets one side rails and lower cover is slidingly connected, positioning seat be installed in lower cover above, the bottom electrode piece in the bottom electrode assembly passes the lower ends of lower cover and positioning seat.
Have the last O type ring recess that is used for the sealed motive force head in the described positioning seat upper end hole, have two following O type ring recess that are used to seal bottom electrode assembly in the positioning seat upper end hole, positioning seat radially has with the positioning seat upper end hole and connects the filled air admission hole that fills.
The bottom electrode piece lower end of described bottom electrode assembly is installed in the upper end of lower cylinder, and following conducting block upper end is passed piston block and linked to each other with the bottom electrode piece, and the location copper band is placed on the upper end of bottom electrode piece, and lower cylinder one side has two cylinder intake holes.
Two, a kind of thermostatic expansion valve power head cross charge method:
At first be placed on the stainless steel steel ball in the location copper band of bottom electrode piece; Again unit head is placed upside down in the positioning seat 8, through slide rail, will goes up collets, last conducting block and top electrode piece and push down unit head from above through the PLC control cylinder; Make unit head be in sealing state with the lower part filling device; Open vacuum valve through PLC this moment, and hermetic unit is evacuated, and judges through pressure sensor and close vacuum valve after vacuum state has reached and open first, second refrigerant valve; Charge into refrigerant; Judge through pressure sensor and to close first, second refrigerant valve and to open nitrogen valve after the refrigerant state has reached, charge into nitrogen, judge after the nitrogen state has reached through pressure sensor and close nitrogen valve; After the nitrogen body charges, PLC control cylinder electrode assemblie, stainless steel steel ball on the top makes it fully to contact with unit head, and the stainless steel steel ball is lived with the unit head weldering, makes air seal in the unit head.
Two refrigerant valve actions of described use are to prevent that nitrogen springs back in the cold media gas in the process that fills, thereby cause refrigerant impure.
The beneficial effect that the utlity model has is:
The utility model has been realized the automation that thermostatic expansion valve power head fills; PLC is according to preset parameters; Automatically control charges into gas and quantity, makes the process of filling realize automation, thereby has guaranteed uniformity in product performance and stability; Improve efficiency, greatly reduced labour cost and intensity.
Description of drawings
Fig. 1 is that the structural principle of the utility model is always schemed.
Fig. 2 is the positioning seat structural representation of the utility model.
Fig. 3 is the bottom electrode assembly structural representation of the utility model.
Fig. 4 is the gas circuit sketch map of the utility model.
Fig. 5 is the unit head sketch map of the utility model.
Among the figure: 1, upper cylinder, 2, upper cover plate, 3, go up collets, 4, slide rail, 5, gripper shoe, 6, go up conducting block; 7, top electrode piece, 8, positioning seat, 9, lower cover (following collets), 10, bottom electrode assembly, 11, go up O type ring recess, 12, fill air admission hole; 13, down O type ring recess 1,14, O type ring recess 2,15, location copper band down, 16, the bottom electrode piece, 17, cylinder air inlet, 18, lower cylinder; 19, piston block, 20, following conducting block, 21, pressure sensor, 22, nitrogen valve, 23, refrigerant valve 1,24, refrigerant valve 2; 25, vacuum valve, 26, vent valve, 27, the nitrogen choke valve, 28, the coolant throttle valve, 29, check valve; 30, nitrogen pressure table, 31, the refrigerant Pressure gauge, 32, the nitrogen pressure-reducing valve, 33, the refrigerant pressure-reducing valve, 34, unit head.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment to the utility model is described further.
As shown in Figure 1; The both sides of upper cover plate 2 and lower cover 9 are fixedly connected with gripper shoe 5 respectively, and upper cylinder 1 is installed above the upper cover plate 2, and the piston rod of upper cylinder 1 passes upper cover plate 2 backs and is connected with the upper end of last collets 3; The lower end of last collets 3 is connected with last conducting block 6; Top electrode piece 7 small ends embed to be gone up in conducting block 6 centre bores, and gripper shoe 5 inboards are provided with the slide rail 4 of vertical and lower cover 9, and the slide rail 4 of last collets 3 one side rails and lower cover 9 is slidingly connected; Positioning seat 8 be installed in lower cover 9 above, the bottom electrode piece 16 in the bottom electrode assembly 10 passes the lower ends of lower cover 9 and positioning seat 8.
As shown in Figure 2; Have the last O type ring recess 11 that is used for sealed motive force head 34 in described positioning seat 8 upper end holes; Have two following O type ring recess 13,14 that are used to seal bottom electrode assembly 10 in positioning seat 8 upper end holes; Positioning seat 8 radially has with positioning seat 8 upper end holes and connects the filled air admission hole 12 that fills, and it is air seal in the assurance device that O type ring recess is set up and down.
As shown in Figure 3; Bottom electrode piece 16 lower ends of described bottom electrode assembly 10 are installed in the upper end of lower cylinder 18; Following conducting block 20 upper ends are passed piston block 19 and are linked to each other with bottom electrode piece 16, and location copper band 15 is placed on the upper end of bottom electrode piece 16, and lower cylinder 16 1 sides have two cylinder intake holes 17.
The operation principle of the utility model is following:
Like Fig. 4, shown in Figure 5, contrast nitrogen pressure table 30 and refrigerant Pressure gauge 31 before filling are regulated nitrogen pressure-reducing valve 32 and refrigerant pressure-reducing valve 33; Make air inlet nitrogen and refrigerant be in pressure stable, regulate nitrogen choke valve 27 and coolant throttle valve 28 again, the intake velocity of control nitrogen and refrigerant; Then be placed on the stainless steel steel ball in the location copper band 15 of bottom electrode piece 16; Again unit head 34 is placed upside down in the positioning seat 8, through slide rail 4, will goes up collets 3, go up conducting block 6 and top electrode piece 7 and push down unit head 34 from above through PLC control cylinder 1; Make unit head 34 be in sealing state with the lower part filling device; Open vacuum valve 25 through PLC this moment, and hermetic unit is evacuated, and judges through pressure sensor 21 and close vacuum valve 25 after vacuum state has reached and open first, second refrigerant valve 23,24; Charge into refrigerant; Judge after the refrigerant states have reached through pressure sensor 21 and to close first, second refrigerant valve 23,24 and to open nitrogen valve 22, charge into nitrogen, judge after the nitrogen states have reached through pressure sensor 21 and close nitrogen valve; After the nitrogen body charges, PLC control cylinder electrode assemblie 10, stainless steel steel ball 34 on the top; Make it fully to contact, the stainless steel steel ball is lived with the unit head weldering, make 34 li air seals of unit head with unit head; Filled the back and will install interior residual gas discharge, filled and accomplish through vent valve 29.
23,24 effects of two refrigerant valves of described use are to prevent that nitrogen springs back in the cold media gas in the process that fills, thereby cause refrigerant impure.
Claims (3)
1. automatic cross charge device of thermostatic expansion valve power head; It is characterized in that: upper cover plate (2) uses gripper shoe (5) to be fixedly connected respectively with the both sides of lower cover (9); Upper cylinder (1) is installed above the upper cover plate (2); The piston rod of upper cylinder (1) passes upper cover plate (2) back and is connected with the upper end of last collets (3), and the lower end of last collets (3) is connected with last conducting block (6), and top electrode piece (7) small end embeds to be gone up in conducting block (6) centre bore; A gripper shoe (5) inboard is provided with the slide rail (4) perpendicular to lower cover (9); The slide rail (4) of last collets (3) one side rails and lower cover (9) is slidingly connected, positioning seat (8) be installed in lower cover (9) above, the bottom electrode piece (16) in the bottom electrode assembly (10) passes the lower ends of lower cover (9) and positioning seat (8).
2. the automatic cross charge device of a kind of thermostatic expansion valve power head according to claim 1; It is characterized in that: have the last O type ring recess (11) that is used for sealed motive force head (34) in described positioning seat (8) upper end hole; Have two the following O type ring recess (13,14) that are used to seal bottom electrode assembly (10) in positioning seat (8) upper end hole, positioning seat (8) radially has with positioning seat (8) upper end hole and connects the filled air admission hole (12) that fills.
3. the automatic cross charge device of a kind of thermostatic expansion valve power head according to claim 1; It is characterized in that: bottom electrode piece (16) lower end of described bottom electrode assembly (10) is installed in the upper end of lower cylinder (18); Following conducting block (20) upper end is passed piston block (19) and is linked to each other with bottom electrode piece (16); Location copper band (15) is placed on the upper end of bottom electrode piece (16), and lower cylinder (16) one sides have two cylinder intake holes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202776165U CN202229491U (en) | 2011-08-02 | 2011-08-02 | Thermal expansion valve power head automatic cross filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202776165U CN202229491U (en) | 2011-08-02 | 2011-08-02 | Thermal expansion valve power head automatic cross filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229491U true CN202229491U (en) | 2012-05-23 |
Family
ID=46080076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202776165U Withdrawn - After Issue CN202229491U (en) | 2011-08-02 | 2011-08-02 | Thermal expansion valve power head automatic cross filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202229491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305504A (en) * | 2011-08-02 | 2012-01-04 | 中国计量学院 | Automatic cross filling device and filling method of thermostatic expansion valve power head |
| CN104807261A (en) * | 2015-04-19 | 2015-07-29 | 浙江春晖智能控制股份有限公司 | Diaphragm capsule filling device for thermostatic expansion valve |
-
2011
- 2011-08-02 CN CN2011202776165U patent/CN202229491U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305504A (en) * | 2011-08-02 | 2012-01-04 | 中国计量学院 | Automatic cross filling device and filling method of thermostatic expansion valve power head |
| CN102305504B (en) * | 2011-08-02 | 2013-02-13 | 中国计量学院 | Automatic cross filling device and filling method of thermostatic expansion valve power head |
| CN104807261A (en) * | 2015-04-19 | 2015-07-29 | 浙江春晖智能控制股份有限公司 | Diaphragm capsule filling device for thermostatic expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120523 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |