CN205262003U

CN205262003U - Thermostatic expansion valve that makes an uproar falls

Info

Publication number: CN205262003U
Application number: CN201521127915.5U
Authority: CN
Inventors: 叶方平; 孙书玉; 任兰英; 王彬
Original assignee: ZHEJIANG XINJIN AIR-CONDITIONING EQUIPMENT Co Ltd
Current assignee: ZHEJIANG XINJIN AIR-CONDITIONING EQUIPMENT Co Ltd
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-05-25
Anticipated expiration: 2025-12-30

Abstract

The utility model provides a thermostatic expansion valve that makes an uproar falls, includes the valve body, install in the valve body top and can be based on the diaphragm that comes from evaporimeter cold media temperature, pressure variation and transmit the ejector pin of this change, and open the diaphragm below has the passageway that radially runs through the valve body, and it has vertical hole of running through the passageway to open on the valve body, and the ejector pin is installed in vertical hole department, and horizontal spacing cooperation has the damping that is used for the centre gripping ejector pin to press from both sides on vertical hole, the damping is pressed from both sides including with notch annular portion, all is equipped with on the breach about annular portion to the circuitous circuitous portion of elasticity of an annular hole, and the tip of the circuitous portion of two types of bomb and a satellite nature all is equipped with arc portion, the centre gripping district of constitution elasticity centre gripping ejector pin between the two arc portions, the damping clamp is located the passageway below. The utility model discloses structural design is ingenious, reasonable, is worth popularizing and applying.

Description

Noise reduction heating power expansion valve

Technical field

The utility model relates to a kind of valve, especially a kind of heating power expansion valve.

Background technology

Expansion valve is a vitals in refrigeration system, generally be installed between liquid storage cylinder and evaporimeter, expansion valve makes the liquid refrigerant throttling of middle temperature high pressure become the moist steam of low-temp low-pressure, enter the effect that absorbs heat in evaporimeter and reach refrigeration, expansion valve can change the flow that carrys out by-pass valve control by the degree of superheat of evaporimeter end, prevents the phenomenon of evaporator area underutilization or frosting.

The vibration main source of expansion valve is on the market that its gas of cold-producing medium of middle temperature high pressure directly impacts elongated push rod, thereby cause the reset that is hit again of resetting that is repeatedly hit of elongated push rod, thereby produce the vibration of high frequency, this vibration meeting directly affects the vibration frequency of expansion valve, if cause the phenomenon of resonance with the close meeting of vibration frequency of automobile air conditioner compressor, the vibration aggravation of expansion valve, serious meeting directly damages expansion valve.

Utility model content

The utility model will solve the shortcoming of above-mentioned prior art, and providing a kind of can vibrate and then reduce the noise reduction heating power expansion valve that expansion valve vibrates by damping push rod, has met user for vibrating little demand in heating power expansion valve use procedure.

The utility model solves the technical scheme that its technical problem adopts: this noise reduction heating power expansion valve, comprise valve body, be installed on valve body top and can be according to carrying out the diaphragm that flash-pot refrigerant temperature, pressure change and transmitting the push rod of this variation, diaphragm below has the passage that radially runs through valve body, on valve body, have the longitudinal hole of penetrating via, push rod is installed on longitudinal hole place, and on longitudinal hole, cross spacing is combined with the damping folder for clamping push rod; Damping folder comprises notched ring part, is all provided with to the roundabout portion of the roundabout elasticity of ring part endoporus on the left and right breach of ring part, and the end of the two roundabout portions of elasticity is all provided with curved portions, forms the clamp area of resilient clamp push rod between two curved portions; Damping folder is positioned at passage below. This set, in the time that the gaseous coolant of middle temperature high pressure blows push rod by passage, push rod is blown shake by gas, at this moment the curved portions that clamps push rod on damping folder can play damping and slow down the effect that push rod swings, thereby avoid the high vibration of push rod, and then make expansion valve significantly reduce vibration, also can avoid close with the vibration frequency of automobile air conditioner compressor, avoid expansion valve generation resonance situation, in order to avoid damage expansion valve.

Further perfect, top stem casing is installed on longitudinal hole, the center of top stem casing has the centre bore that runs through its upper and lower end face, and push rod matched in clearance is in the central hole of top stem casing. This set, can utilize top stem casing to make the cold-producing medium of middle temperature high pressure impact top stem casing, thereby the impact that further keeps away face push rod is rocked.

Further perfect, ring part is annular. This set, is convenient to processing.

Further perfect, the cross section of ring part is circular. This set, is convenient to processing.

Further perfect, ring part, the roundabout portion of elasticity, curved portions all utilize spring steel wire material to be made into integration damping folder. This damping folder is convenient to processing in enormous quantities, and product quality is more stable, cost is lower.

The effect that the utility model is useful is: the utility model structural design is ingenious, reasonable, utilize the setting that is provided with the damping folder being arranged on push rod below passage, can play the effect of damping push rod vibration, and push rod overcoat has the effect of top stem casing, make the cold-producing medium of middle temperature high pressure directly impact top stem casing, thereby further reduce the pressurized vibration of push rod, avoid due to top vibration of bar, and directly cause the vibration of expansion valve, also can avoid close with the vibration frequency of automobile air conditioner compressor and cause the covibration of expansion valve, being worthy of popularization.

Brief description of the drawings

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

Fig. 2 is the A-A profile of Fig. 1;

Fig. 3 is the structural representation of damping folder in the utility model;

Fig. 4 is the B-B profile of Fig. 3.

Description of reference numerals: valve body 1, passage 1-1, longitudinal hole 1-2, diaphragm 2, push rod 3, damping folder 4, ring part 4-1, the roundabout 4-2 of portion of elasticity, curved portions 4-3, clamp area a.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail:

With reference to accompanying drawing: this noise reduction heating power expansion valve, comprise valve body 1, be installed on valve body 1 top and can be according to carrying out the diaphragm 2 that flash-pot refrigerant temperature, pressure change and transmitting the push rod 3 of this variation, diaphragm 2 belows have the passage 1-1 that radially runs through valve body 1, on valve body 1, have the longitudinal hole 1-2 of penetrating via 1-1, push rod 3 is installed on longitudinal hole 1-2 place, and the upper cross spacing of longitudinal hole 1-2 is combined with the damping folder 4 for clamping push rod 3;

Damping folder 4 comprises notched ring part 4-1, on the left and right breach of ring part 4-1, be all provided with to the roundabout 4-2 of portion of the roundabout elasticity of ring part 4-1 endoporus, the end of the roundabout 4-2 of portion of two elasticity is all provided with curved portions 4-3, forms the clamp area a of resilient clamp push rod 3 between two curved portions 4-3;

Damping folder 4 is positioned at passage 1-1 below.

Top stem casing 5 is installed on longitudinal hole 1-2, and push rod 3 matched in clearance are in the central hole of top stem casing 5.

Ring part 4-1 is annular.

The cross section of ring part 4-1 is circular.

Ring part 4-1, the roundabout 4-2 of portion of elasticity, curved portions 4-3 utilize spring steel wire material to be made into integration damping folder 4.

This expansion valve utilization is provided with the setting of the damping folder 4 being arranged on push rod 3 below passage 1-1, can play the effect of damping push rod vibration, and push rod 3 overcoats have the effect of top stem casing 5, make the gaseous refrigerant of middle temperature high pressure directly impact top stem casing 5 instead of push rod 3, thereby can further reduce the pressurized vibration of push rod 3, avoid the vibration due to push rod 3, and directly cause the vibration of expansion valve, also can avoid close with the vibration frequency of automobile air conditioner compressor and cause the covibration of expansion valve, being worthy of popularization.

Although the utility model illustrates and describes by reference to preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation in form and details.

Claims

1. a noise reduction heating power expansion valve, comprise valve body (1), be installed on valve body (1) top and can be according to carrying out flash-pot refrigerant temperature, pressure change diaphragm (2) and transmit the push rod (3) of this variation, diaphragm (2) below has the passage (1-1) that radially runs through valve body (1), it is characterized in that: the longitudinal hole (1-2) that has penetrating via (1-1) on described valve body (1), described push rod (3) is installed on longitudinal hole (1-2) and locates, the upper cross spacing of described longitudinal hole (1-2) is combined with the damping folder (4) for clamping push rod (3),

Described damping folder (4) comprises notched ring part (4-1), on the left and right breach of described ring part (4-1), be all provided with the elasticity roundabout portion (4-2) roundabout to ring part (4-1) endoporus, described in two, the end of the roundabout portion of elasticity (4-2) is all provided with curved portions (4-3), forms the clamp area (a) of resilient clamp push rod (3) between two curved portions (4-3);

Described damping folder (4) is positioned at passage (1-1) below.

2. noise reduction heating power expansion valve according to claim 1, is characterized in that: top stem casing (5) is installed on described longitudinal hole (1-2), and described push rod (3) matched in clearance is in the central hole of top stem casing (5).

3. noise reduction heating power expansion valve according to claim 1, is characterized in that: described ring part (4-1) is annular.

4. noise reduction heating power expansion valve according to claim 3, is characterized in that: the cross section of described ring part (4-1) is for circular.

5. noise reduction heating power expansion valve according to claim 4, is characterized in that: described ring part (4-1), the roundabout portion of elasticity (4-2), curved portions (4-3) all utilize spring steel wire material to be made into integration damping folder (4).