WO2022033565A1 - 电子膨胀阀 - Google Patents

电子膨胀阀 Download PDF

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Publication number
WO2022033565A1
WO2022033565A1 PCT/CN2021/112369 CN2021112369W WO2022033565A1 WO 2022033565 A1 WO2022033565 A1 WO 2022033565A1 CN 2021112369 W CN2021112369 W CN 2021112369W WO 2022033565 A1 WO2022033565 A1 WO 2022033565A1
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WO
WIPO (PCT)
Prior art keywords
valve body
cavity
electronic expansion
clamping
expansion valve
Prior art date
Application number
PCT/CN2021/112369
Other languages
English (en)
French (fr)
Inventor
邸志强
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202021704259.1U external-priority patent/CN212389773U/zh
Priority claimed from CN202010820482.0A external-priority patent/CN114076207A/zh
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Priority to JP2022567518A priority Critical patent/JP7453416B2/ja
Priority to KR1020237001453A priority patent/KR20230022302A/ko
Publication of WO2022033565A1 publication Critical patent/WO2022033565A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of electronic expansion valve equipment, and in particular, to an electronic expansion valve.
  • the electronic expansion valve plays an important role.
  • a fixed plate that protrudes outward is usually set on the outer casing of the coil, and the fixed plate is used to position the valve.
  • the sheet is fixed on the casing of the coil, and finally the axial positioning and circumferential positioning of the valve body and the coil are realized through the positioning sheet.
  • the structure of connecting the valve body and the coil by the above method is relatively complicated.
  • the fixing plate and the positioning sheet, and the positioning sheet and the outer casing of the coil need to be connected by riveting or welding, and the production process is relatively complicated, which makes the electronic expansion valve in the production. The production efficiency in the process becomes lower and the production cost increases.
  • the main purpose of the present application is to provide an electronic expansion valve, so as to solve the problems of high processing cost and low production efficiency caused by using positioning sheets for positioning and fixing in the prior art.
  • an electronic expansion valve comprising: a valve body, the bottom of the valve body is provided with a nozzle, the nozzle includes a transverse pipe section, the transverse pipe section extends from the side wall of the valve body, and the extension direction of the transverse pipe section is perpendicular to The axial direction of the valve body; the protective shell, the protective shell includes a shell, a cover and a clamping part located at the bottom end of the shell, there is an installation cavity inside the shell, the cover is set on the top of the installation cavity, and the valve body is installed in the installation cavity Among them, the top of the valve body abuts on the inner wall of the cover body, the clamping part is integrally formed with the casing, and the clamping part is used for clamping the transverse pipe section.
  • the clamping part includes a clamping block, a clamping cavity and a vacating cavity are arranged inside the clamping block, the transverse tube section is penetrated in the clamping cavity, and the caving cavity is located at one end of the clamping cavity close to the shell, and is connected with the clamping cavity. Keep the cavity connected.
  • clamping cavity forms an opening on the end face of the end of the clamping block away from the housing.
  • the side walls on both sides of the clamping cavity are provided with concave arc surfaces, and the concave arc surfaces are matched with the side walls of the nozzle.
  • a plurality of protruding strip structures are arranged on the concave arc surface, the protruding strip structures are parallel to the nozzle, and the plurality of protruding strip structures are arranged at intervals along the circumferential direction of the clamping cavity.
  • valve body includes a valve body and a valve seat located at the bottom of the valve body, the connecting pipe is connected with the valve seat, at least one annular groove is arranged on the circumference of the valve seat, and the electronic expansion valve also includes at least one sealing ring, and the sealing ring is sleeved on the valve seat. in the annular groove.
  • valve body and the valve seat are welded and connected to form a welding seam, and the sealing ring is located under the welding seam.
  • the opening gradually decreases from bottom to top.
  • cover body and the casing are integrally injection-molded.
  • the bottom side wall of the installation cavity is provided with a plurality of bosses, the plurality of bosses are arranged at intervals along the circumferential direction of the installation cavity, and the end faces of the plurality of bosses close to one end of the bottom of the shell together form a positioning surface, and the positioning surface and the installation An accommodating cavity is formed between the bottom ends of the cavities, and the sealing ring is installed in the accommodating cavity and abuts on the positioning surface.
  • the electronic expansion valve of the present application is clamped to the bottom of the valve body through the clamping part integrally formed on the casing, and at the same time, the top of the valve body can be placed on the bottom of the cover body, so that the valve body can be connected to the bottom of the cover body through the valve body.
  • the cooperation of the cover body realizes the load-bearing of the protective shell and other equipment on the protective shell, such as coils, etc., without the need for the clamping part to bear the load, realizes the axial positioning and circumferential positioning between the valve body and the coil, and the shell and the clamping part.
  • Integrated injection molding can effectively improve production efficiency and reduce production costs.
  • FIG. 1 schematically shows a structural diagram of an embodiment of the electronic expansion valve of the present application
  • FIG. 2 schematically shows a cross-sectional view of an embodiment of the electronic expansion valve of the present application
  • FIG. 3 schematically shows a structural diagram of another angle of the embodiment of the electronic expansion valve of the present application
  • FIG. 4 schematically shows a structural diagram of an embodiment of the valve body of the present application
  • FIG. 5 schematically shows a structural diagram of an embodiment of the valve seat of the present application.
  • valve body 111, valve body; 112, valve seat; 12, take over; 20, protective shell; 21, shell; arc surface; 23, cover body; 30, annular groove; 40, sealing ring; 50, boss.
  • an embodiment of the present application provides an electronic expansion valve, including a valve body 10 and a protective shell 20 , wherein a connecting pipe 12 is provided at the bottom of the valve body 10 , and the connecting pipe 12 includes The transverse pipe section, the transverse pipe section protrudes from the side wall of the valve body 10, and the extension direction of the transverse pipe section is perpendicular to the axial direction of the valve body 10; 22.
  • the body 21 is integrally formed, and the clamping portion 22 is used for clamping the transverse pipe section.
  • the protective shell 20 wraps the coil of the electronic expansion valve, and the electronic expansion valve of the present application clamps the connecting pipe 12 at the bottom of the valve body 10 through the clamping part 22 integrally formed on the casing 21 , and the top of the valve body can be pressed against The bottom of the cover body, so as to realize the load-bearing of the protective shell and other equipment on the protective shell, such as coils, etc. through the cooperation of the valve body and the cover body, without the need for the clamping part to bear the load, and realize the axial positioning between the valve body 10 and the coil. and circumferential positioning, so that the valve body 10 is fixedly connected with the protective shell and the coil.
  • the coil and the protective shell When the product is used, it is installed vertically, under the action of downward gravity, the coil and the protective shell will not fall off when the valve body withstands it. If the protective shell and the coil are lifted up, they also need to overcome the clamping of the clamping portion 22 to the socket 12 to be removed. The clamping force does not need to be too large, as long as the protective shell and the coil do not fall off.
  • the nozzle 12 further includes a vertical pipe section, the vertical pipe section is connected to the end of the horizontal pipe section, and the axis of the vertical pipe section is parallel to the axis of the valve body.
  • the clamping part 22 in this embodiment includes a clamping block, and a clamping cavity 222 and a receding cavity 221 are arranged inside the clamping block, and the transverse pipe section is penetrated in the clamping cavity 222 .
  • the escape cavity 221 is located at one end of the clamping cavity 222 close to the housing 21 and communicates with the clamping cavity 222 .
  • the clamping cavity 222 accommodates and clamps the transverse pipe section to realize the fixation of the butt pipe 12.
  • the clamping block in this embodiment also has an escape cavity 221. By setting the escape cavity 221, the clamping block can be The clamping parts on both sides of the clamping cavity 222 have larger deformation space, sufficient elasticity, high reliability and longer service life.
  • the clamping cavity 222 in this embodiment forms an opening on the end face of the end of the clamping block away from the housing 21, and the elastic deformation space of the clamping cavity 222 can be further increased by providing the opening. Further, it is convenient to snap the connecting pipe 12 together.
  • the side walls on both sides of the clamping cavity 222 in this embodiment are provided with concave arc surfaces 223 .
  • the side walls are adapted, and the axes of the two concave arc surfaces 223 are both coincident with the axis of the nozzle 12 , so that the two concave arc surfaces 223 can locate and fix the nozzle 12 .
  • a plurality of ridge structures are provided on the concave arc surface 223 in this embodiment. Circumferential spacing settings. By arranging a plurality of bosses 50 structures, the frictional force between the concave arc surface 223 and the outer wall of the nozzle 12 is increased, thereby effectively preventing the nozzle 12 from slipping.
  • the valve body 10 in this embodiment includes a valve body 111 and a valve seat 112 at the bottom of the valve body 111 , the connecting pipe 12 and the valve seat 112 is connected, at least one annular groove 30 is disposed on the circumference of the valve seat 112 , and the electronic expansion valve further includes at least one sealing ring 40 , and the sealing ring 40 is sleeved in the annular groove 30 .
  • valve body 111 and the valve seat 112 are welded and connected to form a welding seam, and the sealing ring 40 is located under the welding seam.
  • the sealing ring 40 is located under the welding seam, and the sealing effect of the sealing ring 40 is fully utilized to effectively seal between the valve body 111 and the valve seat 112 and between the valve body 10 and the protective shell 20 .
  • the top of the valve body 10 is positioned by the cover body 23, not by the clamping part 22, so as to prevent the clamping part 22 from being damaged, ensure the support of the protective shell, and facilitate the installation and positioning of the staff.
  • the bodies 21 can be detachably connected. If a detachable connection is adopted, a sealing ring 40 needs to be added.
  • the cover body 23 and the housing 21 in this embodiment are integrally injection-molded to ensure sealing performance.
  • the opening in this embodiment is gradually reduced from bottom to top, and the two sides of the opening form guiding inclined surfaces.
  • the bottom side wall of the mounting cavity is provided with a plurality of bosses 50 , and the plurality of bosses 50 are arranged at intervals along the circumferential direction of the mounting cavity.
  • a accommodating cavity is formed between the positioning surface and the bottom end of the mounting cavity, and the sealing ring 40 is installed in the accommodating cavity and abuts on the positioning surface.
  • the O-ring can be positioned, and on the other hand, it can meet the needs of the injection molding process.
  • the junction of the installation cavity and the bottom of the housing 21 is provided with a chamfer, so as to facilitate the installation of the valve body 10 and the sealing ring 40 .
  • the electronic expansion valve of the present application is easy to assemble, can effectively improve the production efficiency and reduce the production cost.
  • the protective shell 20 is arranged on the outer shell of the coil, which can prevent the original metal shell of the coil from rusting and corroding, which can effectively improve the service life of the expansion valve.
  • the plastic shell can also play a role in suppressing noise, which can effectively reduce the working time of the electronic expansion valve noise.
  • the bottom of the valve body is clamped by the clamping part integrally formed on the casing, and at the same time, the top of the valve body can be pressed against the bottom of the cover body, so that protection can be realized through the cooperation between the valve body and the cover body.
  • the load-bearing of the shell and other equipment on the protective shell, such as the coil, does not need the clamping part to bear the load, so as to realize the axial positioning and circumferential positioning between the valve body and the coil.
  • the integral injection molding of the shell and the clamping part can effectively improve production. efficiency and reduce production costs.
  • spatially relative terms such as “on”, “over”, “on the surface”, “above”, etc., may be used herein to describe what is shown in the figures.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)

Abstract

一种电子膨胀阀，包括：阀体（10），阀体（10）底部设置有接管（12），接管（12）包括横管段，横管段从阀体（10）的侧壁伸出，横管段的延伸方向垂直于阀体（10）的轴线方向；保护壳（20），保护壳（20）包括壳体（21）、盖体（23）及位于壳体（21）底端的卡接部（22），壳体（21）内部具有安装腔，盖体（23）盖设在安装腔的顶部，阀体（10）安装在安装腔中，阀体（10）的顶部抵在盖体（23）的内壁上，卡接部（22）与壳体（21）一体成型，卡接部（22）用于卡接横管段。这种电子膨胀阀通过一体成型在壳体上的卡接部对阀体底部进行卡接，同时阀体顶部可以顶在盖体的底部，从而通过阀体与盖体的配合实现对保护壳以及保护壳上其他设备，如线圈等的承重，无需卡接部进行承重，实现阀体与线圈之间的轴向定位和周向定位，壳体与卡接部一体注塑成型可有效提高生产效率，降低生产成本。

Description

电子膨胀阀
本申请要求于2020年08月14日提交至中国国家知识产权局、申请号为202010820482.0、发明名称为“电子膨胀阀”的专利申请的优先权，于2020年08月14日提交至中国国家知识产权局、申请号为202021704259.1、发明名称为“电子膨胀阀”的专利申请的优先权。
技术领域
本申请涉及电子膨胀阀设备技术领域，具体而言，涉及一种电子膨胀阀。
背景技术
随着科技的发展，变压器、电感器等装置在当今社会获得了更为广泛的应用。而在变压器、电感器等这类装置中，电子膨胀阀起到重要作用，为了便于阀体与线圈的连接，通常会在线圈的外壳上设置向外凸起的固定板，通过固定板将定位片固定在线圈的外壳上，最后再通过定位片来实现阀体和线圈的轴向定位和周向定位。采用上述方式连接阀体和线圈结构较为复杂，固定板与定位片、及定位片与线圈的外壳之间需要通过铆接或焊接方式进行连接，其生产工艺较为复杂，这样就使得电子膨胀阀在生产过程中的生产效率变低，生产成本增加。
发明内容
本申请的主要目的在于提供一种电子膨胀阀，以解决现有技术中的采用定位片进行定位固定导致的加工成本高、生产效率低的问题。
为了实现上述目的，本申请提供了一种电子膨胀阀，包括：阀体，阀体底部设置有接管，接管包括横管段，横管段从阀体的侧壁伸出，横管段的延伸方向垂直于阀体的轴线方向；保护壳，保护壳包括壳体、盖体及位于壳体底端的卡接部，壳体内部具有安装腔，盖体盖设在安装腔的顶部，阀体安装在安装腔中，阀体的顶部抵在盖体的内壁上，卡接部与壳体一体成型，卡接部用于卡接横管段。
进一步地，卡接部包括卡块，卡块内部设置有夹持腔及让位腔，横管段穿设在夹持腔中，让位腔位于夹持腔的靠近壳体的一端，并与夹持腔连通。
进一步地，夹持腔在卡块的远离壳体的一端的端面上形成开口。
进一步地，夹持腔两侧的侧壁设置有凹弧面，凹弧面与接管的侧壁相适配。
进一步地，凹弧面上设置有多个凸条结构，凸条结构与接管平行，多个凸条结构沿夹持腔的周向间隔设置。
进一步地，阀体包括阀身及位于阀身底部的阀座，接管与阀座连接，阀座的周向设置有至少一个环形凹槽，电子膨胀阀还包括至少一个密封圈，密封圈套设在环形凹槽中。
进一步地，阀身与阀座焊接连接，并形成焊缝，密封圈位于焊缝下方。
进一步地，开口自下至上逐渐减小。
进一步地，盖体与壳体一体注塑成型。
进一步地，安装腔的底部侧壁设置有多个凸台，多个凸台沿安装腔的周向间隔设置，多个凸台的靠近壳体底部一端的端面共同形成定位面，定位面与安装腔的底端之间形成容纳腔，密封圈安装在容纳腔中，并抵接在定位面上。
应用本申请的技术方案，本申请的电子膨胀阀通过一体成型在壳体上的卡接部对阀体底部的进行卡接，同时阀体顶部可以顶在盖体的底部，从而通过阀体与盖体的配合实现对保护壳以及保护壳上其他设备，如线圈等的承重，无需卡接部进行承重，实现阀体与线圈之间的轴向定位和周向定位，壳体与卡接部一体注塑成型可有效提高生产效率，降低生产成本。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示意性示出了本申请的电子膨胀阀的实施例的结构图；
图2示意性示出了本申请的电子膨胀阀的实施例的剖视图；
图3示意性示出了本申请的电子膨胀阀的实施例的另一角度的结构图；
图4示意性示出了本申请的阀体的实施例的结构图；
图5示意性示出了本申请的阀座的实施例的结构图。
其中，上述附图包括以下附图标记：
10、阀体；111、阀身；112、阀座；12、接管；20、保护壳；21、壳体；22、卡接部；221、让位腔；222、夹持腔；223、凹弧面；23、盖体；30、环形凹槽；40、密封圈；50、凸台。
具体实施方式
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
正如背景技术中所记载的，随着科技的发展，变压器、电感器等装置在当今社会获得了更为广泛的应用。而在变压器、电感器等这类装置中，电子膨胀阀起到重要作用，为了便于阀体与线圈的连接，通常会在线圈的外壳上设置向外凸起的固定板，通过固定板将定位片固定在线圈的外壳上，最后再通过定位片来实现阀体和线圈的轴向定位和周向定位。采用上述方式连接阀体和线圈结构较为复杂，固定板与定位片、及定位片与线圈的外壳之间需要通过 铆接或焊接方式进行连接，其生产工艺较为复杂，这样就使得电子膨胀阀在生产过程中的生产效率变低，生产成本增加。
为了解决上述问题，参见图1至图5所示，本申请的实施例提供了一种电子膨胀阀，包括阀体10和保护壳20，其中，阀体10底部设置有接管12，接管12包括横管段，横管段从阀体10的侧壁伸出，横管段的延伸方向垂直于阀体10的轴线方向；保护壳20包括壳体21、盖体23及位于壳体21底端的卡接部22，壳体21内部具有安装腔，盖体23盖设在安装腔的顶部，阀体10安装在安装腔中，阀体10的顶部抵在盖体23的内壁上，卡接部22与壳体21一体成型，卡接部22用于卡接横管段。其中，保护壳20包裹电子膨胀阀的线圈，本申请的电子膨胀阀通过一体成型在壳体21上的卡接部22对阀体10底部的接管12进行卡接，同时阀体顶部可以顶在盖体的底部，从而通过阀体与盖体的配合实现对保护壳以及保护壳上其他设备，如线圈等的承重，无需卡接部进行承重，实现阀体10与线圈之间的轴向定位和周向定位，使阀体10与保护壳及线圈固定连接。产品使用时竖直安装，受向下重力作用，线圈及保护壳被阀体顶住不会脱落。如果向上提起保护壳及线圈也需要克服卡接部22对接管12的卡接才能取下，此卡接的作用力无需太大，只要能满足保护壳及线圈不脱落即可。
具体来说，接管12还包括竖管段，竖管段与横管段的末端连接，竖管段的轴线与阀体的轴线平行，本实施例的壳体21与卡接部22一体注塑成型。
为了实现卡接部22的卡接功能，本实施例中的卡接部22包括卡块，卡块内部设置有夹持腔222及让位腔221，横管段穿设在夹持腔222中，让位腔221位于夹持腔222的靠近壳体21的一端，并与夹持腔222连通。通过夹持腔222容纳并夹持横管段，实现对接管12的固定，为了提高卡块的弹性，本实施例的卡块内部还具有让位腔221，通过设置让位腔221使得卡块的夹持腔222两侧的夹持部分具有更大的形变空间，弹性足、可靠性高，寿命更长。
为了便于对接管12进行卡接，本实施例中的夹持腔222在卡块的远离壳体21的一端的端面上形成开口，通过设置开口可进一步地增加夹持腔222的弹性变形空间，进而便于对接管12进行卡接。
其中，由于接管12为柱形，为了防止接管12从夹持腔222中滑落，本实施例中的夹持腔222两侧的侧壁设置有凹弧面223，凹弧面223与接管12的侧壁相适配，两个凹弧面223的轴线均与接管12的轴线重合，以通过两个凹弧面223对接管12实现定位，并进行固定。
为了进一步地防止接管12从夹持腔222中滑落，本实施例中的凹弧面223上设置有多个凸条结构，凸条结构与接管12平行，多个凸条结构沿夹持腔222的周向间隔设置。通过设置多个凸台50结构，增加凹弧面223与接管12外壁间的摩擦力，从而有效地防止接管12滑落。
为了防止外部杂质、水等进入保护壳20内，对阀体10及线圈进行腐蚀，本实施例中的阀体10包括阀身111及位于阀身111底部的阀座112，接管12与阀座112连接，阀座112的周向设置有至少一个环形凹槽30，电子膨胀阀还包括至少一个密封圈40，密封圈40套设在环形凹槽30中。
具体来说，本实施例中的阀身111与阀座112焊接连接，并形成焊缝，密封圈40位于焊缝下方，通过阀身111与阀座112焊接保证阀体10内部不进入杂质，同时，密封圈40位于焊缝下方，充分利用密封圈40的密封作用，对阀身111与阀座112之间，及阀体10与保护壳20之间进行有效密封。
通过盖体23对阀体10的顶部进行定位，而非通过卡接部22进行定位，防止卡接部22受损，保证对保护壳的支撑，且便于工作人员安装定位，盖体23与壳体21之间可为可拆卸连接，如采用可拆卸连接，则需要增加密封圈40，优选地，本实施例中的盖体23与壳体21一体注塑成型，保证密封性能。
为了便于对接管的卡接，本实施例中的开口自下至上逐渐减小，开口的两侧形成导向斜面，安装时，横管段从开口进入，并最终卡接在凹弧面中。
本实施例中的安装腔的底部侧壁设置有多个凸台50，多个凸台50沿安装腔的周向间隔设置，多个凸台50的靠近壳体21底部一端的端面共同形成定位面，定位面与安装腔的底端之间形成容纳腔，密封圈40安装在容纳腔中，并抵接在定位面上。通过设置多个凸台50，一方面可以定位O型圈，另一方面可以满足注塑工艺的需要。优选地，安装腔与壳体21底部的交接处设置有倒角，以便于安装阀体10及密封圈40。
本申请的电子膨胀阀组装方便，可有效提高生产效率，降低生产成本。在线圈的外壳上设置保护壳20，能防止线圈原有金属外壳生锈腐蚀，可有效提高膨胀阀的使用寿命，同时塑料壳还可以起到抑制噪音的作用，可有效降低电子膨胀阀工作时的噪音。
从以上的描述中，可以看出，本申请上述的实施例实现了如下技术效果：
本申请的电子膨胀阀通过一体成型在壳体上的卡接部对阀体底部的进行卡接，同时阀体顶部可以顶在盖体的底部，从而通过阀体与盖体的配合实现对保护壳以及保护壳上其他设备，如线圈等的承重，无需卡接部进行承重，实现阀体与线圈之间的轴向定位和周向定位，壳体与卡接部一体注塑成型可有效提高生产效率，降低生产成本。
应该指出，上述详细说明都是例示性的，旨在对本申请提供进一步的说明。除非另有指明，本文使用的所有技术和科学术语具有与本申请所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便这里描述的本申请的实施方式例如能够以除了在这里图示或描述的那些以外的顺序实施。
此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。
例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。
在上面详细的说明中，参考了附图，附图形成本文的一部分。在附图中，类似的符号典型地确定类似的部件，除非上下文以其他方式指明。在详细的说明书、附图及权利要求书中所描述的图示说明的实施方案不意味是限制性的。在不脱离本文所呈现的主题的精神或范围下，其他实施方案可以被使用，并且可以作其他改变。将容易理解的是，如本文一般所描述的及附图所图示说明的，本公开的方面可以在广泛种类的不同的配置中被编排、代替、组合、分开以及设计，所有这些在本文被明确地考虑。
根据本申请所描述的特定实施方案的本公开将不受限制，其被意图作为各种方面的图示说明。如对本领域技术人员将是清晰的那样，在不脱离本公开的精神和范围下可以作许多修改和变更。在本公开范围内，功能上等同的方法和设备，除了本文所列举的那些之外，从前述说明书来看对本领域技术人员将是清晰的。这样的修改和变更意图落入所附权利要求书的范围内。本公开将仅由所附权利要求书的条款以及这样的权利要求所给予权利的等同物的全部范围限制。将理解的是，本公开不限于特定的方法、试剂、化合物、组成或生物系统，其当然可以变化。也将理解的是，本文所使用的术语仅是出于描述特定的实施方案的目的，而并非意图是限制性的。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种电子膨胀阀，其特征在于，包括：
    阀体(10)，所述阀体(10)底部设置有接管(12)，所述接管(12)包括横管段，所述横管段从所述阀体(10)的侧壁伸出，所述横管段的延伸方向垂直于所述阀体(10)的轴线方向；
    保护壳(20)，所述保护壳(20)包括壳体(21)、盖体(23)及位于所述壳体(21)底端的卡接部(22)，所述壳体(21)内部具有安装腔，所述盖体(23)盖设在所述安装腔的顶部，所述阀体(10)安装在所述安装腔中，所述阀体(10)的顶部抵在所述盖体(23)的内壁上，所述卡接部(22)与所述壳体(21)一体成型，所述卡接部(22)用于卡接所述横管段。
  2. 根据权利要求1所述的电子膨胀阀，其特征在于，所述卡接部(22)包括卡块，所述卡块内部设置有夹持腔(222)及让位腔(221)，所述横管段穿设在所述夹持腔(222)中，所述让位腔(221)位于所述夹持腔(222)的靠近所述壳体(21)的一端，并与所述夹持腔(222)连通。
  3. 根据权利要求2所述的电子膨胀阀，其特征在于，所述夹持腔(222)在所述卡块的远离所述壳体(21)的一端的端面上形成开口。
  4. 根据权利要求2所述的电子膨胀阀，其特征在于，所述夹持腔(222)两侧的侧壁设置有凹弧面(223)，所述凹弧面(223)与所述接管(12)的侧壁相适配。
  5. 根据权利要求4所述的电子膨胀阀，其特征在于，所述凹弧面(223)上设置有多个凸条结构，所述凸条结构与所述接管(12)平行，多个所述凸条结构沿所述夹持腔(222)的周向间隔设置。
  6. 根据权利要求1所述的电子膨胀阀，其特征在于，所述阀体(10)包括阀身(111)及位于所述阀身(111)底部的阀座(112)，所述接管(12)与所述阀座(112)连接，所述阀座的周向设置有至少一个环形凹槽(30)，所述电子膨胀阀还包括至少一个密封圈(40)，所述密封圈(40)套设在所述环形凹槽(30)中。
  7. 根据权利要求6所述的电子膨胀阀，其特征在于，所述阀身(111)与所述阀座焊接连接，并形成焊缝，所述密封圈(40)位于所述焊缝下方。
  8. 根据权利要求3所述的电子膨胀阀，其特征在于，所述开口自下至上逐渐减小。
  9. 根据权利要求1所述的电子膨胀阀，其特征在于，所述盖体(23)与所述壳体(21)一体注塑成型。
  10. 根据权利要求7所述的电子膨胀阀，其特征在于，所述安装腔的底部侧壁设置有多个凸台(50)，多个所述凸台(50)沿所述安装腔的周向间隔设置，多个所述凸台(50)的靠近所述壳体(21)底部一端的端面共同形成定位面，所述定位面与所述安装腔的底端之间形成容纳腔，所述密封圈(40)安装在所述容纳腔中，并抵接在所述定位面上。
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