KR20070062318A - An air conditioner expansion valve for vehicle - Google Patents

An air conditioner expansion valve for vehicle Download PDF

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Publication number
KR20070062318A
KR20070062318A KR1020050122133A KR20050122133A KR20070062318A KR 20070062318 A KR20070062318 A KR 20070062318A KR 1020050122133 A KR1020050122133 A KR 1020050122133A KR 20050122133 A KR20050122133 A KR 20050122133A KR 20070062318 A KR20070062318 A KR 20070062318A
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KR
South Korea
Prior art keywords
valve
screw
spring
shaft
expansion valve
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KR1020050122133A
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Korean (ko)
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서경원
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기아자동차주식회사
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Priority to KR1020050122133A priority Critical patent/KR20070062318A/en
Publication of KR20070062318A publication Critical patent/KR20070062318A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/068—Expansion valves combined with a sensor
    • F25B2341/0683—Expansion valves combined with a sensor the sensor is disposed in the suction line and influenced by the temperature or the pressure of the suction gas

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Temperature-Responsive Valves (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

An air conditioner expanding valve for a vehicle is provided to simplify components and reduce cost by removing an o-ring and a vibration-proof spring. An air conditioner expanding valve for a vehicle a diaphragm(24), a shaft(28), a ball valve, and an adjust screw(34). The diaphragm is assembled on a body. The shaft is installed with interposing an o-ring at a lower side. The ball valve supports the shaft with a valve support. The adjust screw elastically supports the ball valve with a spring, and is assembled at the body to adjust elasticity. The ball valve includes a hexagonal nut, a screw axis, and a female screw unit. The hexagonal nut has a vibration-proof spring supported by the adjust screw at a lower side, and a valve supporter elastically supported by the spring. The screw axis is formed as one body on a straight line of the other side of the hexagonal nut. The female screw unit is coupled at a lower end to be coupled to a screw unit of the screw axis.

Description

자동차용 에어컨 팽창밸브 {an air conditioner expansion valve for vehicle}Air conditioner expansion valve for vehicle

도 1은 종래 기술에 따른 팽창밸브를 도시한 도면 도면.1 is a view showing an expansion valve according to the prior art.

도 2는 도 1에서 볼밸브의 편심 작용을 도시한 도면.Figure 2 shows the eccentric action of the ball valve in Figure 1;

도 3은 도 1에 방진 스프링이 설치된 것을 도시한 도면. 3 is a view showing that the dust-proof spring is installed in FIG.

도 4는 본 발명의 일 실시예에 따른 팽창밸브를 도시한 도면.4 is a view showing an expansion valve according to an embodiment of the present invention.

도 5는 도 3의 볼밸브를 분해 도시한 도면5 is an exploded view illustrating the ball valve of FIG. 3.

도 6은 도 4의 볼밸브를 도시한 도면.6 is a view showing the ball valve of FIG.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

20:에어컨 팽창밸브 22:바디20: Air conditioner expansion valve 22: Body

24:다이어프램 26:오링24: Diaphragm 26: O-ring

28:샤프트 30:볼밸브28: shaft 30: ball valve

32:볼밸브 34:어저스트 스크류32: ball valve 34: adjust screw

36:밸브서포터 38:육각너트36: Valve supporter 38: Hex nut

40:스크류축 42:나사부40: screw shaft 42: screw

44:암나사부 46:에어컨 팽창밸브44: Female thread 46: Air conditioner expansion valve

본 발명은 자동차용 에어컨 팽창밸브에 관한 것으로, 더욱 상세하게는 샤프트와 볼밸브사이가 면접촉 상태임에 따라 이부분에서 이상진동(공진) 발생시 편심이 발생되는 것을 샤프트와 볼밸브를 일체화하여 근본적으로 볼밸브의 편심 발생을 방지하게 되는 자동차용 에어컨 팽창밸브에 관한 것이다.The present invention relates to an air conditioner expansion valve for an automobile, and more particularly, the eccentricity is generated when an abnormal vibration (resonance) occurs in this part due to the surface contact between the shaft and the ball valve. The present invention relates to an air conditioner expansion valve for an automobile to prevent the occurrence of eccentricity of the ball valve.

일반적으로 차량 에어컨(냉방) 시스템은 크게 압축기(컴프레샤), 응축기(콘덴서), 팽창밸브(익스팬션밸브), 증발기(에바포레이터)로 구성된다.Generally, a vehicle air conditioner (cooling) system is composed of a compressor (compressor), a condenser (condenser), an expansion valve (expansion valve), and an evaporator (evaporator).

도 1은 종래 기술에 따른 팽창밸브를 도시한 도면 도면이고, 도 2는 도 1에서 볼밸브의 편심 작용을 도시한 도면이다.1 is a view showing an expansion valve according to the prior art, Figure 2 is a view showing the eccentric action of the ball valve in FIG.

상기 팽창밸브(2)는 바디(2-1)에 다이어프램(2-2)과, 볼밸브(6)를 지지하는 밸브서포트(2-3), 스프링(10)을 지지하는 어저스트스크류(2-4)로 구성되며, 콘덴서에서 나온 고온고압의 액상의 냉매 증기를 교축작용에 의해 저온저압의 액상의 무화상태의 증기로 만드는 역할을 하게 된다.The expansion valve (2) has a diaphragm (2-2), a valve support (2-3) for supporting the ball valve (6) and an adjust screw (2) for supporting the spring (10) on the body (2-1). It is composed of -4) and plays the role of making the high temperature and high pressure liquid refrigerant vapor from the condenser into the vaporization state of the low temperature low pressure liquid phase by throttling.

상기한 팽창밸브(2)에서 무화상태로 만들어 증발기에서 열교환이 쉽도록 한다. 또한, 증발기 출구의 가스온도를 센싱하여 냉매가 이상과열 되지 않도록 조절하는 역할도 한다.Make the atomization state in the expansion valve (2) to facilitate heat exchange in the evaporator. In addition, by sensing the gas temperature of the evaporator outlet serves to control the refrigerant is not overheated.

상기한 팽창밸브(2)에서 발생하는 이음은 팽창밸브의 공진 또는 단품 불량등에 의해 냉매가 밸브 통과시 이음이 발생한다. The noise generated in the expansion valve 2 is generated when the refrigerant passes through the valve due to resonance of the expansion valve or defective unit.

이러한 이음 발생 원인은 배관 및 연결부 진동, 샤프트(4)와 볼 밸브(6) 사 이에서 발생하는 편심에 의해서이다. 그리고 냉매 통과 이음은 냉매가 팽창밸브(2) 통과시 발생한 기포 생성 및 소멸시 이음이 발생한다. The cause of these joints is due to pipe and connector vibrations and eccentricity between the shaft 4 and the ball valve 6. In addition, the refrigerant passing joint generates noise when bubbles are generated and disappeared when the refrigerant passes through the expansion valve 2.

이는 고압냉매의 기포발생, 밸브 또는 배관 내의 소음과, 팽창밸브 용량 과다에 따른 오링(8)을 추가하여 샤프트(4) 접동력(감쇠계수) 증대로 편심 발생이 개선되고 실정이다.The eccentricity is improved due to the increase in the sliding force (damping coefficient) of the shaft 4 by adding the O-ring 8 due to the bubble generation of the high pressure refrigerant, the noise in the valve or the pipe, and the expansion valve capacity.

도 3은 도 1에 방진 스프링이 설치된 것을 도시한 도면이다. 3 is a view showing that the anti-vibration spring is installed in FIG.

도면을 참고하면, 방진 스프링(10) 추가로 볼밸브(6)의 스프링에 방진스프링을 두어 접동 저항 증대하게 된다.Referring to the drawings, the anti-vibration spring 10 is added to the anti-vibration spring in the spring of the ball valve 6 to increase the sliding resistance.

한편 방진스프링(10)은 본체에 방진스프링 하중Ａ를 주어 ，종방향의 접동저항(감계수??)을 증대시키고, 또한 횡방향에도 힘이 미쳐 횡진동도 방지하게 된다.On the other hand, the anti-vibration spring 10 is subjected to the anti-vibration spring load A on the main body to increase the sliding resistance (reduction coefficient ??) in the longitudinal direction, and also to exert a force in the transverse direction to prevent lateral vibration.

방진스프링(10) 효과는 지탱하중 ３Ｎ이상이면 이음발생 없고, 적용시 최대유량 및 냉매 통과 이음에 영향은 없으나, 에어컨 작동상태에서 고속주행시 팽창밸브측에서 고주파이음 발생하는 문제점이 있다.The anti-vibration spring 10 effect is no noise generated when the bearing load is 3N or more, and there is no effect on the maximum flow rate and refrigerant passing joint when applied, but there is a problem that high-frequency joints are generated on the expansion valve side during high-speed driving in the air conditioner operating state.

상기한 엔진/차체 진동에 의한 특정 회전수에서 팽창밸브측 공진 및 편심 발생한 상태에서 밸브를 통과하는 냉매가스가 이음 발생시키게 된다.Refrigerant gas passing through the valve is generated in the expansion valve side resonance and eccentricity at a specific rotational speed caused by the engine / body vibration.

상기한 편심방지구조로 오링과 방진스프링 적용되고 있으나 문제가 재발되는 문제점이 있다. O-ring and anti-vibration spring is applied as the eccentric prevention structure, but there is a problem that the problem recurs.

상기한 바와 같이 이루어지는 종래기술의 문제점을 해소하기 위하여 제안된 것으로 본 발명의 목적은 볼 밸브의 편심 발생 방지와 볼밸브 편심 발생에 따른 샤 프트와 볼밸브사이에 면접촉 상태이며 이부분에서 이상 진동(공진) 발생시 편심이 발생되는데, 샤프트와 볼밸브를 일체화하여 근본적으로 편심 발생을 방지하는 자동차용 에어컨 팽창밸브를 제공한다.The object of the present invention has been proposed to solve the problems of the prior art made as described above is the surface contact state between the shaft and the ball valve according to the prevention of the occurrence of the eccentricity of the ball valve and the occurrence of the ball valve eccentricity and abnormal vibration in this part When (resonance) occurs, an eccentricity is generated, and it provides an air conditioner expansion valve for automobiles which essentially prevents eccentricity by integrating a shaft and a ball valve.

본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시예에 의해 알게 될 것이다. 또한, 본 발명의 목적 및 장점들은 특허청구범위에 나타낸 수단 및 조합에 의해 실현될 수 있다.Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the claims.

이와 같은 기술적 과제들을 달성하기 위하여,In order to achieve these technical challenges,

바디상에 조립되는 다이어프램과; 하측에 일정 길이로 연결되는 오링이 개재되어 설치되는 샤프트와; 상기 샤프트를 밸브서포트에 의하여 지지하도록 구비된 볼밸브와; 상기 밸브서포트를 방진스프링과 스프링으로 탄지하며 탄지력을 조정하게 바디에 조립된 어저스트 스크류로 구성된 에어컨 팽창밸브에 있어서,A diaphragm assembled on the body; A shaft installed with an O-ring interposed at a predetermined length on the lower side; A ball valve provided to support the shaft by a valve support; In the air-conditioning expansion valve composed of adjust screws assembled to the body to hold the valve support with a dust-proof spring and a spring, adjust the holding force,

상기 볼 밸브는 하측에 어저스트 스크류로 지지되는 방지스프링과 스프링에 의하여 탄지되는 스프링시이트가 일체로 부착된 육각너트와; The ball valve has a hexagon nut which is integrally attached to the lower spring and the spring spring supported by the spring and the prevention spring supported by the adjust screw;

상기 육각너트의 타측 일직선상에 일정 길이이고 일체로 형성되는 스크류축과; A screw shaft integrally formed on the other side of the hexagon nut and having a predetermined length;

상기 스크류축의 나사부에 결합되게 하단부에 암나사부를 체결하여 구성되는 것을 특징으로 하는 자동차용 에어컨 팽창밸브를 제공하는데 있다.It is to provide an air conditioner expansion valve for a vehicle characterized in that it is configured to fasten the female screw portion to the lower end to be coupled to the screw portion of the screw shaft.

이하, 첨부된 도면을 참조로 본 발명의 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일 실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

도 4는 본 발명의 일 실시예에 따른 팽창밸브를 도시한 도면이고, 도 5는 도 3의 볼밸브를 분해 도시한 도면이며, 도 6은 도 4의 볼밸브를 도시한 도면이다.4 is a view showing an expansion valve according to an embodiment of the present invention, Figure 5 is an exploded view of the ball valve of Figure 3, Figure 6 is a view showing the ball valve of FIG.

도면을 참조하면; 자동차용 에어컨 팽창밸브(20)는 바디(22)상에 조립되는 다이어프램(24)과; 하측에 일정 길이로 연결되는 오링(26)이 개재되어 설치되는 샤프트(28)와; 상기 샤프트(28)를 지지하도록 구비된 볼밸브(30)와; 상기 볼밸브(30)를 스프링(32)으로 탄지하며 탄지력을 조정하게 바디(22)에 조립된 어저스트 스크류(34)로 구성된 에어컨 팽창밸브에 있어서, 상기 볼 밸브(30)는 하측에 어저스트 스크류(34)로 지지되는 스프링(32)에 의하여 탄지되는 밸브서포터(36)가 일체로 부착된 육각너트(38)와; 상기 육각너트(38)의 타측 일직선상에 일정 길이이고 일체로 형성되는 스크류축(40)과; 상기 스크류축(40)의 나사부(42)에 결합되게 하단부에 암나사부(44)를 체결하여 자동차용 에어컨 팽창밸브(46)가 구성된다.Referring to the drawings; The automotive air conditioner expansion valve 20 includes a diaphragm 24 assembled on the body 22; A shaft 28 provided with an O-ring 26 connected to the lower side at a predetermined length; A ball valve (30) provided to support the shaft (28); In the air-conditioning expansion valve composed of adjust screws (34) assembled on the body (22) for holding the ball valve (30) with the spring (32) and adjusting the holding force, the ball valve (30) A hexagon nut 38 having a valve supporter 36 supported by a spring 32 supported by the just screw 34 integrally attached thereto; A screw shaft 40 integrally formed on the other side of the hexagon nut 38 and integrally formed with a predetermined length; The air conditioner expansion valve 46 for the automobile is configured by fastening the female screw portion 44 to the lower end portion to be coupled to the screw portion 42 of the screw shaft 40.

그리고 볼밸브(30) 끝단에 스크류(42)를 형성하며, 밸브서포터(36)에 홀을 두어 육각너트(36)를 삽입후 아래측에서 원주 용접하여 볼밸브(30)가 상단의 스크류(42)로 샤프트(28) 일체로 형성한다. 이후 스프링(32)과 방진스프링(46)을 설치하면 샤프트(28)와 일체인 볼밸브(30)를 구성하게 되며, 마지막으로 어저스트 스크류(34)로 조립하면 된다.  Then, a screw 42 is formed at the end of the ball valve 30, a hole is provided in the valve supporter 36, and a hexagon nut 36 is inserted thereinto and then circumferentially welded from the lower side. ) To form the shaft 28 integrally. Then, when the spring 32 and the anti-vibration spring 46 is installed, the ball valve 30 is integrally formed with the shaft 28, and finally, the assembly may be made with the adjust screw 34.

이상에서 살펴본 바와 같이 본 발명에 따른 볼밸브의 편심에 의한 이음발생을 방지하게 되는 효과가 있다.As described above, there is an effect of preventing the occurrence of a joint due to the eccentricity of the ball valve according to the present invention.

또, 자동차 에어컨 팽창밸브의 부품수 절감 즉,오링, 방진스프링의 삭제가 이루어져 이에 따른 부품 단순화 및 원가개선이 이루어지게 되는 효과가 있다. In addition, it is possible to reduce the number of parts of the expansion valve of the air conditioner of the vehicle, that is, the o-ring, the anti-vibration spring is deleted, thereby simplifying the parts and improving the cost.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진자에 의해 본 발명의 기술 사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (2)

바디상에 조립되는 다이어프램과; 하측에 일정 길이로 연결되는 오링이 개재되어 설치되는 샤프트와; 상기 샤프트를 밸브서포트에 의하여 지지하도록 구비된 볼밸브와; 상기 밸브서포트로 스프링으로 탄지하며 탄지력을 조정하게 바디에 조립된 어저스트 스크류로 구성된 에어컨 팽창밸브에 있어서,A diaphragm assembled on the body; A shaft installed with an O-ring interposed at a predetermined length on the lower side; A ball valve provided to support the shaft by a valve support; In the air-conditioning expansion valve consisting of adjust screws assembled to the body to adjust the holding force to the spring by the valve support, 상기 볼 밸브는 하측에 어저스트 스크류로 지지되는 방진스프링과 스프링에 의하여 탄지되는 밸브서포터가 일체로 부착된 육각너트와; The ball valve has a hexagon nut which is integrally attached to the anti-vibration spring supported by the adjust screw on the lower side and the valve supporter carried by the spring integrally; 상기 육각너트의 타측 일직선상에 일정 길이이고 일체로 형성되는 스크류축과; A screw shaft integrally formed on the other side of the hexagon nut and having a predetermined length; 상기 스크류축의 나사부에 결합되게 하단부에 암나사부를 체결하여 구성되는 것을 특징으로 하는 자동차용 에어컨 팽창밸브.The air conditioner expansion valve for a vehicle, characterized in that is configured to fasten the female screw portion to the lower end to be coupled to the screw portion of the screw shaft. 청구항 1에 있어서, The method according to claim 1, 상기 육각너트는 밸브서포터와 용접되어 일체로 부착되는 것을 특징으로 하는 자동차용 에어컨 팽창밸브. The hexagon nut is an automobile air conditioner expansion valve, characterized in that attached to the valve supporter and integrally attached.
KR1020050122133A 2005-12-12 2005-12-12 An air conditioner expansion valve for vehicle KR20070062318A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108072210A (en) * 2017-05-25 2018-05-25 东莞质研工业设计服务有限公司 A kind of main valve body
CN110966413A (en) * 2018-09-30 2020-04-07 浙江三花汽车零部件有限公司 Expansion valve
EP3499150A4 (en) * 2016-08-09 2020-04-08 Fujikoki Corporation Expansion valve

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3499150A4 (en) * 2016-08-09 2020-04-08 Fujikoki Corporation Expansion valve
CN108072210A (en) * 2017-05-25 2018-05-25 东莞质研工业设计服务有限公司 A kind of main valve body
CN108072210B (en) * 2017-05-25 2020-10-30 马鞍山司匹诺机械科技有限公司 Main valve body
CN110966413A (en) * 2018-09-30 2020-04-07 浙江三花汽车零部件有限公司 Expansion valve

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