High-pressure automobile air conditioner expansion valve

Abstract

The high-pressure automobile air conditioner expansion valve comprises a valve body, a temperature sensing bag is installed on the outer surface of one end of the valve body, a valve needle is installed in the valve body, first connectors are formed in the ends, close to the temperature sensing bag, of the outer surfaces of the two sides of the valve body, and second connectors are formed in the ends, away from the temperature sensing bag, of the outer surfaces of the two sides of the valve body. A spring seat assembly is installed on the outer surface of the end, away from the temperature sensing bulb, of the valve body. According to the high-pressure automobile air conditioner expansion valve, through the arranged spring seat assembly, the movement of the valve element and the size of the throttling opening can be further influenced by changing the pre-tightening force or the compressing force of the spring, when the pre-tightening force or the compressing force of the spring is changed, the valve needle can move up and down, and therefore the opening degree of the throttling opening is changed; the flow of a refrigerant is controlled, refrigeration control is achieved, the spring seat assembly is arranged, a compression spring is installed in the spring seat assembly, and the stability of the inside hexagonal bolt is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to high pressure automobile air conditioning expansion valve technical field, specifically for a kind of high pressure automobile air conditioning expansion valve. BACKGROUND

[0002] Expansion valve is responsible for the refrigerant liquid of medium temperature high pressure is changed into low temperature low pressure wet steam state.In the evaporator before refrigerant flows, this change is necessary, because only in this way, refrigerant can effectively absorb heat in evaporator, to realize refrigeration effect.

[0003] The high pressure automobile air conditioning expansion valve in prior art is composed of valve body, high-low pressure interface, temperature sensing bag, valve needle, valve head, spring, spring seat and the like structure, since spring seat is fixed, the pre-tightening force and compression force of spring in prior art are not easy to be adjusted, and the applicability of refrigeration control is reduced.

[0004] Therefore, we propose a kind of high pressure automobile air conditioning expansion valve. UTILITY MODEL CONTENTS

[0005] (One) technical problem solved

[0006] In view of the deficiencies of prior art, the utility model provides a kind of high pressure automobile air conditioning expansion valve, by changing the pre-tightening force or compression force of spring, to further influence the movement of valve core and the size of throttling, realize the control of refrigeration, and it is convenient to adjust and the like advantages, can effectively solve the problems in background art.

[0007] (Two) technical scheme

[0008] To achieve the above object, the technical scheme adopted by the utility model is as follows: a kind of high pressure automobile air conditioning expansion valve, including valve body, the outer surface of one end of the valve body is equipped with temperature sensing bag, the inside of the valve body is equipped with valve needle, the outer surface of the two sides of the valve body is equipped with first interface near temperature sensing bag one end, the outer surface of the two sides of the valve body is equipped with second interface away from temperature sensing bag one end, the outer surface of the one end of the valve body away from temperature sensing bag is equipped with spring seat assembly, the spring seat assembly includes fixed block, guide ring, inner hexagonal bolt, mounting hole, guide slot, moving rod, sliding block, installation slot, first movable block, compression spring, second movable block, spring connecting block and nut, the fixed block is fixedly installed on the outer surface of the one end of the valve body away from temperature sensing bag, and the guide ring is fixedly installed on the outer surface of the one end of temperature sensing bag, and the guide ring is located at the one end of the inner cavity of the valve body away from temperature sensing bag.

[0009] Preferably, the mounting hole is opened in the middle of the outer surface of one side of fixed block, the guide slot is opened in the left and right sides of mounting hole, and one end of the inner hexagonal bolt is inserted into the mounting hole.

[0010] Preferably, the second movable block and the spring connecting block are located in the guide ring, the second movable block is fixedly installed between the outer surface of one end of the spring connecting block and the outer surface of one end of the moving rod, and the outer wall of the second movable block is in sliding connection with the inner wall of the guide ring.

[0011] Preferably, the mounting groove is arranged on the outer surface of one end of the moving rod away from the second movable block, the nut is fixedly installed at one end of the mounting groove away from the second movable block, the inner hexagonal bolt penetrates through the nut, and the outer wall of the inner hexagonal bolt is in threaded connection with the nut.

[0012] Preferably, the sliding block is fixedly installed on the outer surfaces of the two sides of the moving rod, the outer wall of the sliding block is in sliding connection with the guide groove, a bearing is arranged between the inner hexagonal bolt and the fixed block, and the inner hexagonal bolt is rotationally connected with the fixed block through the bearing.

[0013] Preferably, the first movable block and the compression spring are located in the mounting groove, the compression spring is fixedly installed between the end of the mounting groove away from the nut and the outer surface of one side of the first movable block, the outer surface of one end of the inner hexagonal bolt is in contact with the first movable block, and the compression spring is in a compressed state.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the utility model provides a kind of high pressure automobile air conditioning expansion valve, with following beneficial effects:

[0016] 1、the high pressure automobile air conditioning expansion valve of this kind, by the spring seat assembly of setting, can change the pre-tightening force or compression force of spring, and then influence the movement of valve core and the size of throttle, when the pre-tightening force or compression force of spring changes, valve needle will move up and down, to change the opening of throttle, control the flow of refrigerant, realize the control of refrigeration.

[0017] 2、the high pressure automobile air conditioning expansion valve of this kind, the spring seat assembly of setting, compression spring is installed in spring seat assembly, improve the stability of inner hexagonal bolt. DRAWINGS

[0018] Figure 1 It is the overall structure schematic view of the utility model high pressure automobile air conditioning expansion valve.

[0019] Figure 2 It is the structure schematic view of the spring seat assembly of the utility model high pressure automobile air conditioning expansion valve.

[0020] Figure 3 It is the overhead sectional view of the spring seat assembly in the utility model high pressure automobile air conditioning expansion valve.

[0021] Figure 4This is a schematic diagram of the internal hexagonal bolt in a high-pressure automotive air conditioning expansion valve according to this utility model.

[0022] In the diagram: 1. Valve body; 2. First interface; 3. Second interface; 4. Temperature sensor; 5. Valve needle; 6. Spring seat assembly; 7. Fixing block; 8. Guide ring; 9. Socket head bolt; 10. Mounting hole; 11. Guide groove; 12. Moving rod; 13. Sliding block; 14. Mounting groove; 15. First movable block; 16. Compression spring; 17. Second movable block; 18. Spring connecting block; 19. Nut. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] This embodiment is a high-pressure automotive air conditioning expansion valve.

[0025] like Figures 1-4 As shown, the valve body includes a valve body 1. A temperature sensing bulb 4 is installed on the outer surface of one end of the valve body 1. A valve needle 5 is installed inside the valve body 1. A first interface 2 is opened on the outer surface of both sides of the valve body 1 near the temperature sensing bulb 4, and a second interface 3 is opened on the outer surface of both sides of the valve body 1 away from the temperature sensing bulb 4. A spring seat assembly 6 is installed on the outer surface of the valve body 1 away from the temperature sensing bulb 4. The spring seat assembly 6 includes a fixing block 7, a guide ring 8, an internal hex bolt 9, a mounting hole 10, a guide groove 11, a moving rod 12, a slider 13, a mounting groove 14, a first movable block 15, a compression spring 16, a second movable block 17, a spring connecting block 18, and a nut 19. The fixing block 7 is fixedly installed on the outer surface of the valve body 1 away from the temperature sensing bulb 4, and the guide ring 8 is fixedly installed on the outer surface of the temperature sensing bulb 4, and the guide ring 8 is located in the inner cavity of the valve body 1 away from the temperature sensing bulb 4.

[0026] The mounting hole 10 is arranged in the middle of the outer surface of one side of the fixed block 7, the guide groove 11 is arranged on the left and right sides of the mounting hole 10, and one end of the inner hexagonal bolt 9 extends into the mounting hole 10; the second movable block 17 and the spring connecting block 18 are both located in the guide ring 8, the second movable block 17 is fixedly installed between the outer surface of one end of the spring connecting block 18 and the outer surface of one end of the moving rod 12, and the outer wall of the second movable block 17 is in sliding connection with the inner wall of the guide ring 8; the mounting groove 14 is arranged on the outer surface of one end of the moving rod 12 away from the second movable block 17, the nut 19 is fixedly installed at one end of the mounting groove 14 away from the second movable block 17, the inner hexagonal bolt 9 penetrates through the nut 19, and the outer wall of the inner hexagonal bolt 9 is in threaded connection with the nut 19; the sliding block 13 is fixedly installed on the outer surfaces of both sides of the moving rod 12, and the outer wall of the sliding block 13 is in sliding connection with the guide groove 11; the bearing is arranged between the inner hexagonal bolt 9 and the fixed block 7, and the inner hexagonal bolt 9 is in rotary connection with the fixed block 7 through the bearing; the first movable block 15 and the compression spring 16 are both located in the mounting groove 14, the compression spring 16 is fixedly installed between one end of the mounting groove 14 away from the nut 19 and the outer surface of one side of the first movable block 15, the outer surface of one end of the inner hexagonal bolt 9 is in contact with the first movable block 15, and the compression spring 16 is in a compressed state.

[0027] It should be noted that the utility model is a kind of high pressure automobile air conditioning expansion valve, the valve body 1, first interface 2, second interface 3, temperature sensing bag 4, valve needle 5 recorded in the document all belong to prior art, and the end of valve needle 5 away from temperature sensing bag 4 is provided with valve head, spring is provided on the side of valve head, for the technical personnel of the technical field, it can be effectively known, specific no longer repeat;Spring seat assembly 6 is set, when the pre-tightening force or compression force of spring inside valve body 1 needs to be adjusted, by rotating hexagonal bolt 9, the outer wall between hexagonal bolt 9 and nut 19 is screw connection, when rotating hexagonal bolt 9, nut 19 is moved, nut 19 moves link 12, link 12 moves slider 13 along guide groove 11, link 12 moves second movable block 17 and spring connecting block 18, the movement of spring connecting block 18 can change the pre-tightening force or compression force of spring inside valve body 1, to further influence the movement of valve core and the size of throttle, when the pre-tightening force or compression force of spring changes, valve needle 5 will move up and down, to change the opening of throttle, control the flow of refrigerant, realize the control of refrigeration, when the refrigeration effect needs to be enhanced, the flow of refrigerant can be increased;Conversely, when the refrigeration effect needs to be weakened, the flow of refrigerant can be reduced, and this adjusting capacity makes air conditioning system more flexible to adapt to different environmental temperature and refrigeration demand;When rotating hexagonal bolt 9, link 12 moves, one end of first movable block 15 is in contact with one end of hexagonal bolt 9, first movable block 15 extrudes compression spring 16, compression spring 16 always keeps compression, the counterforce of compression spring 16 is used to eliminate the looseness of hexagonal bolt 9 after screw connection, improve the stability of hexagonal bolt 9, to further improve the stability of expansion valve as a whole.

[0028] It should be noted that, in this document, relationship terms such as first and second (one and two) are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A high-pressure automotive air conditioning expansion valve, comprising a valve body (1), wherein a temperature sensing bulb (4) is mounted on the outer surface of one end of the valve body (1), a valve needle (5) is mounted inside the valve body (1), a first interface (2) is provided on the outer surfaces of both sides of the valve body (1) near the temperature sensing bulb (4), and a second interface (3) is provided on the outer surfaces of both sides of the valve body (1) away from the temperature sensing bulb (4), characterized in that: A spring seat assembly (6) is installed on the outer surface of the valve body (1) away from the temperature sensor (4). The spring seat assembly (6) includes a fixing block (7), a guide ring (8), an internal hex bolt (9), a mounting hole (10), a guide groove (11), a moving rod (12), a slider (13), a mounting groove (14), a first movable block (15), a compression spring (16), a second movable block (17), a spring connecting block (18), and a nut (19). The fixing block (7) is fixedly installed on the outer surface of the valve body (1) away from the temperature sensor (4), and the guide ring (8) is fixedly installed on the outer surface of the temperature sensor (4). The guide ring (8) is located in the inner cavity of the valve body (1) away from the temperature sensor (4).

2. The high-pressure automotive air conditioning expansion valve according to claim 1, characterized in that: The mounting hole (10) is located in the middle of the outer surface of one side of the fixing block (7), the guide groove (11) is located on the left and right sides of the mounting hole (10), and one end of the internal hex bolt (9) extends into the mounting hole (10).

3. A high-pressure automotive air conditioning expansion valve according to claim 2, characterized in that: The second movable block (17) and the spring connecting block (18) are both located in the guide ring (8). The second movable block (17) is fixedly installed between one end of the outer surface of the spring connecting block (18) and one end of the outer surface of the moving rod (12). The outer wall of the second movable block (17) and the inner wall of the guide ring (8) are slidably connected.

4. A high-pressure automotive air conditioning expansion valve according to claim 3, characterized in that: The mounting groove (14) is opened on the outer surface of the end of the moving rod (12) away from the second movable block (17). The nut (19) is fixedly installed on the end of the mounting groove (14) away from the second movable block (17). The internal hex bolt (9) passes through the nut (19), and the outer wall of the internal hex bolt (9) and the nut (19) are threaded together.

5. A high-pressure automotive air conditioning expansion valve according to claim 4, characterized in that: The slider (13) is fixedly installed on both outer surfaces of the moving rod (12), and the outer wall of the slider (13) is slidably connected to the guide groove (11). A bearing is provided between the internal hexagon bolt (9) and the fixing block (7), and the internal hexagon bolt (9) is rotatably connected to the fixing block (7) through the bearing.

6. A high-pressure automotive air conditioning expansion valve according to claim 5, characterized in that: The first movable block (15) and the compression spring (16) are both located in the mounting groove (14). The compression spring (16) is fixedly installed between the end of the mounting groove (14) away from the nut (19) and the outer surface of one side of the first movable block (15). The outer surface of one end of the internal hex bolt (9) is in contact with the first movable block (15), and the compression spring (16) is in a compressed state.

Images