CN203348664U

CN203348664U - Control valve core for refrigerating system of automotive air conditioner

Info

Publication number: CN203348664U
Application number: CN 201320269814
Authority: CN
Inventors: 方宇
Original assignee: CHANGZHOU TENGLI AUTO PARTS Co Ltd
Current assignee: CHANGZHOU TENGLI AUTO PARTS Co Ltd
Priority date: 2013-05-16
Filing date: 2013-05-16
Publication date: 2013-12-18
Anticipated expiration: 2023-05-16

Abstract

The utility model discloses a control valve core for a refrigerating system of an automotive air conditioner. The control valve core is installed in a valve base body of the control valve and comprises a valve core body provided with an inner cavity, a base located on the bottom of the valve core body, a core rod penetrating from the upper end of the inner cavity of the valve core body to be fixedly connected with the base, and a return spring used for resetting after the core rod operates, the periphery of the upper end of the valve core body is in threaded connection with the inner wall of the valve base body, a sealing gasket is arranged between the base and the valve core body, a seal ring is arranged between the side face of the valve core body and the inner wall of the valve base body, the return spring is arranged in the inner cavity of the valve core body, and the core rod penetrates through an inner hole of the return spring to be fixedly connected with the base. According to the control valve core, the return spring is arranged in the inner cavity of the valve core body, so the return spring is lengthened, restoring force of the return spring is increased, the valve core can return to the original position rapidly, and meanwhile the length of the body of the core rod stretching out of the valve core body can be correspondingly shortened.

Description

Automobile air conditioning system is with controlling spool

Technical field

The utility model relates to the air-conditioning refrigeration system technical field, especially a kind of spool of the control for automobile air conditioning system.

Background technique

Be equipped with the control valve as the action executing element in automobile air conditioning system, by control valve, move the normal operation that realizes car air conditioner.In general, in the action executing process, core bar relies on the active force of Returnning spring and realizes resetting, so the size of spring force, has determined the reset speed of core bar, in the larger situation of system action force, requires Returnning spring to have corresponding rigidity and elastic force.Returnning spring commonly used is Compress Spring, for Compress Spring, length is longer, the restoring force produced is just larger, because all being sleeved on the core bar upper end, stretches out on the body of rod of valve core by current Returnning spring, therefore Returnning spring length is longer, certainly will cause the core bar body of rod that stretches out valve core to lengthen, and also makes the spool entire length longer.

The model utility content

The technical problems to be solved in the utility model is: overcome the deficiency in prior art, provide a kind of and meeting the control spool for automobile air conditioning system that effectively shortens core bar length under core bar Rapid reset prerequisite.

The utility model solves the technological scheme that its technical problem adopts: a kind of automobile air conditioning system is with controlling spool, be arranged in the valve body of control valve, comprise the valve core with inner chamber, be positioned at the base of valve core bottom, penetrate the core bar and the Returnning spring for resetting the core bar action that are connected with base from valve core inner chamber upper end, valve core upper end periphery is connected with the valve body inner thread, be provided with sealing gasket between base and valve core, be provided with seal ring between valve core side and valve body inwall, described Returnning spring is arranged in the inner chamber of valve core, core bar is connected through Returnning spring endoporus and base.

Further, described base has columnar portion and the outside outstanding ring part be connected with core bar, be provided with the guide pad of ring-type on ring part, sealing gasket is located in the cavity that ring part has and is positioned at the guide pad below, and the internal chamber wall of guide pad periphery and valve core is slidably matched.

Described core bar middle part has annular protrusion, and the core bar bottom has tapered protrusion, and Returnning spring is fastened between annular protrusion and tapered protrusion.

The beneficial effects of the utility model are: the utility model is located at Returnning spring in the inner chamber of valve core, lengthened Returnning spring length, increased the restoring force of Returnning spring, realized the Rapid reset of core bar, simultaneously the corresponding core bar body of rod length of stretching out valve core that shortens.

The accompanying drawing explanation

Below in conjunction with drawings and embodiments, the utility model is further illustrated.

Fig. 1 is structural representation of the present utility model.

1. valve body 2. valve core 21. inner chamber 3. base 31. columnar portion 32. ring part 4. core bar 41. annular protrusion 42. tapered protrusion 5. Returnning spring 6. sealing gasket 7. seal ring 8. guide pads in figure

Embodiment

By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.

A kind of automobile air conditioning system as shown in Figure 1, with controlling spool, is arranged in the valve body 1 of control valve.Comprise valve core 2, base 3, core bar 4 and Returnning spring 5, valve core 2 has inner chamber 21, base 3 is positioned at the bottom of valve core 2, base 3 has columnar portion 31 and is positioned at the ring part 32 of columnar portion 31 tops, core bar 4 penetrates with the columnar portion 31 of base 3 and is connected from inner chamber 21 upper ends of valve core 2, valve core 2 upper ends have outside thread, and valve body 1 endoporus has internal thread, and valve core 2 upper ends are fixedly connected with by internal and external screw thread with valve body 1 endoporus.

Be provided with the guide pad 8 of ring-type on the ring part 32 of base 3, ring part 32 has cavity, be provided with sealing gasket 6 in the cavity of ring part 32, sealing gasket 6 is positioned at guide pad 8 belows and fits with valve core 2 lower end surfaces, be provided with seal ring 7 between valve core 2 sides and valve body 1 inwall, when control valve moves, guide pad 8 outer circumferential faces and valve core 2 inwalls are slidably matched, and have played leading role preferably.

For the Returnning spring 5 resetted after core bar 4 actions, be arranged in the inner chamber 21 of valve core 2, there is annular protrusion 41 at core bar 4 middle parts, the core bar bottom has tapered protrusion 42, Returnning spring 5 is fastened between annular protrusion 41 and tapered protrusion 42, core bar 4 is connected through the columnar portion 31 of Returnning spring 5 endoporus and base 3, inner chamber 21 bottoms at valve core 2 have a conical cavity, when depressing core bar 4, core bar 4 promotes guide pad 8 and base 3 moves down, and Returnning spring 5 bottom ends are crushed on the conical cavity bottom surface, Returnning spring 5 is compressed and produce elastic force.

The utility model is located at Returnning spring 5 in the inner chamber 21 of valve core 2, lengthen Returnning spring 5 length, increased the restoring force of Returnning spring 5, realized the Rapid reset of core bar 4, corresponding core bar 4 body of rod length of stretching out valve core 2 that shorten, also shortened the entire length of controlling spool simultaneously.

Above-mentioned mode of execution is only explanation technical conceive of the present utility model and characteristics; its purpose is to allow the person skilled in the art can understand content of the present utility model and be implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed in protection domain of the present utility model.

Claims

1. an automobile air conditioning system is with controlling spool, be arranged in the valve body (1) of control valve, comprise the there is inner chamber valve core (2) of (21), be positioned at the base (3) of valve core (2) bottom, penetrate the core bar (4) be connected with base (3) and the Returnning spring (5) resetted for core bar (4) from inner chamber (21) upper end of valve core (2), valve core (2) upper end periphery is connected with valve body (1) inner thread, be provided with sealing gasket (6) between base (3) and valve core (2), be provided with seal ring (7) between valve core (2) side and valve body (1) inwall, it is characterized in that: described Returnning spring (5) is arranged in the inner chamber (21) of valve core (2), core bar (4) is connected through Returnning spring (5) endoporus and base (3).

2. automobile air conditioning system according to claim 1 is with controlling spool, it is characterized in that: described base (3) has columnar portion (31) and the outside outstanding ring part (32) be connected with core bar (4), be provided with the guide pad (8) of ring-type on ring part (32), sealing gasket (6) is located in the cavity that ring part (32) has and is positioned at guide pad (8) below, and inner chamber (21) wall of guide pad (8) periphery and valve core (2) is slidably matched.

3. automobile air conditioning system according to claim 2 is with controlling spool, it is characterized in that: described core bar (4) middle part has annular protrusion (41), the core bar bottom has tapered protrusion (42), and Returnning spring (5) is fastened between annular protrusion (41) and tapered protrusion (42).