WO2020024877A1 - 空调系统、电子膨胀阀及其电磁线圈结构 - Google Patents

空调系统、电子膨胀阀及其电磁线圈结构 Download PDF

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Publication number
WO2020024877A1
WO2020024877A1 PCT/CN2019/097884 CN2019097884W WO2020024877A1 WO 2020024877 A1 WO2020024877 A1 WO 2020024877A1 CN 2019097884 W CN2019097884 W CN 2019097884W WO 2020024877 A1 WO2020024877 A1 WO 2020024877A1
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WO
WIPO (PCT)
Prior art keywords
plastic
lead
cavity
electromagnetic coil
coil structure
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Application number
PCT/CN2019/097884
Other languages
English (en)
French (fr)
Inventor
曾庆军
赵俊
Original Assignee
浙江盾安禾田金属有限公司
天津华信机械有限公司
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.)
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Publication date
Application filed by 浙江盾安禾田金属有限公司, 天津华信机械有限公司 filed Critical 浙江盾安禾田金属有限公司
Priority to JP2020551484A priority Critical patent/JP7256819B2/ja
Priority to KR2020207000060U priority patent/KR200495689Y1/ko
Publication of WO2020024877A1 publication Critical patent/WO2020024877A1/zh

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Classifications

    • 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
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306—Fastening or mounting coils or windings on core, casing or other support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • 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 air-conditioning equipment manufacturing, and in particular, to air-conditioning, electronic expansion valves, and electromagnetic coil structures thereof.
  • Electronic expansion valve also known as throttle valve or regulating valve, is one of the main components in air conditioning systems, which mainly plays the role of throttling and reducing pressure and regulating flow.
  • Electronic expansion valves generally include an electromagnetic coil structure and a valve body structure connected to the electromagnetic coil structure.
  • the electronic expansion valve inevitably needs to be transferred between various stations such as warehouses and workshops before installation.
  • the flow of the electronic expansion valve is usually achieved by the workers by grasping the leads provided on the structure of the electromagnetic coil.
  • the lead root is prone to rupture and breakage of the lead wire due to the back and forth bending; especially in low temperature environments, the lead wire tends to become hard and brittle, making it easier to break the lead wire. , which greatly affects the service life of the electronic expansion valve.
  • An electromagnetic coil structure includes,
  • the coil component includes a plastic-encapsulated casing and a coil received and fixed in the plastic-encapsulated casing;
  • An insulation protection plate is disposed on a side wall of the plastic-encapsulated casing and forms a receiving cavity with a cable outlet between the plastic-encapsulated casing and the side wall of the plastic-encapsulated casing.
  • the receiving cavity includes a fixed cavity and an extending cavity that communicate with each other.
  • the extension cavity is disposed near the outlet;
  • a sealant is received and solidified in the fixed cavity, and a seal surface is formed on an end of the sealant near the wire outlet;
  • the lead assembly includes a lead, one end of the lead is buried in the sealing compound and electrically connected to the coil, and the other end extends out of the wire outlet.
  • the insulation protection plate includes a fixing portion and an extension portion which are respectively spaced from the side wall of the plastic-encapsulated casing, and the extension portion is disposed near the outlet, and the fixing portion and the The fixing cavity is enclosed between the side walls of the casing, and the extension cavity is enclosed between the extension and the side wall of the plastic-molded casing.
  • a gap between the extending portion and a side wall of the plastic housing is smaller than a gap between the fixing portion and a side wall of the plastic housing.
  • an edge of the extension portion is provided with a valgus portion.
  • an included angle between the eversion portion and an extending direction of the insulation protection plate is an acute angle.
  • an end of the insulating protection plate near the outlet is provided with a support surface
  • the lead can be abutted against the support surface
  • an end of the plastic-encapsulated housing near the outlet is provided with a fixing surface. The distance from the support surface to where the leads protrude from the sealing surface is greater than the distance from the support surface to the fixed surface.
  • the insulation protection board includes a main body, and a distance from the support surface to a position where the lead wire protrudes from the sealing surface is greater than a distance from the main body to the plastic-encapsulated casing.
  • a mounting portion is provided on a side wall of the plastic-encapsulated casing, the insulating protection plate is mounted on the mounting portion, and the accommodation is formed between the insulating protection plate and a surface of the mounting portion Cavity.
  • the coil assembly further includes a pin
  • the lead assembly further includes a circuit board
  • the pin is fixed on the plastic housing, and one end of the pin is electrically connected to the coil. Connected, the other end is housed in the fixed cavity, the circuit board is housed in the fixed cavity, and is electrically connected to one end of the lead embedded in the sealing body, and the pin is inserted into the circuit
  • the board is electrically connected to the circuit board to achieve an electrical connection between the lead and the coil.
  • An electronic expansion valve comprising
  • a valve body structure includes a hollow housing, a rotor housed in the housing, and a valve needle drivingly connected to the rotor.
  • the housing is provided at one end of the housing, and the rotor and the coil Cooperate.
  • An air conditioning system includes the electronic expansion valve described above.
  • the structure of the air conditioner, the electronic expansion valve and the electromagnetic coil thereof has the following advantages:
  • the extension cavity projects from the sealing surface, so the extension cavity has a limiting effect on the bent lead. Therefore, during the flow of the electronic expansion valve, when the lead wire is bent, the edge of the outlet can effectively reduce the bending angle of the lead wire, which greatly reduces the lead skin rupture and lead breakage caused by the transitional bending. The probability of occurrence prolongs the service life of the lead wire, which in turn makes the service life of the electromagnetic coil structure longer. Therefore, the service life of the electronic expansion valve and air conditioner including the electromagnetic coil structure is also longer.
  • FIG. 1 is a schematic structural diagram of an electronic expansion valve provided by the present application
  • FIG. 3 is a partial cross-sectional view of an electromagnetic coil structure provided by the present application.
  • FIG. 4 is a partial enlarged view of A in FIG. 3 provided by the present application.
  • FIG. 5 is a schematic structural diagram with a distance label in FIG. 3 provided by the present application.
  • FIG. 6 is a bottom view of FIG. 5 provided by the present application.
  • FIG. 7 is a schematic structural diagram of an embodiment of a protection board provided by this application.
  • FIG. 8 is a rear view of the protective plate in FIG. 7 provided by the present application.
  • FIG. 9 is a schematic structural diagram of an embodiment of a protection board provided by this application.
  • FIG. 10 is a left side view of the protective plate in FIG. 9 provided by the present application.
  • FIG. 11 is a schematic structural diagram of an embodiment of a protection board provided by this application.
  • FIG. 12 is a left side view of the protective plate in FIG. 11 provided by the present application.
  • 100 indicates an electronic expansion valve
  • 10 indicates an electromagnetic coil structure
  • 110 indicates a coil assembly
  • 111 indicates a molded case
  • 1111 indicates a side wall of the molded case
  • 112 indicates a coil
  • 113 indicates a pin
  • 120 indicates an insulating protective plate.
  • 120a indicates the main body
  • 1201 indicates the fixed portion
  • 1202 indicates the extension portion
  • 120b indicates the connection portion
  • 120c indicates the welding line
  • 121 indicates the receiving cavity
  • 122 indicates the outlet
  • 1211 indicates the fixed cavity
  • 1212 indicates the extension cavity
  • 122 indicates the outlet
  • 123 Denotes a valgus portion
  • 124 indicates a support surface
  • 130 indicates a sealant
  • 131 indicates a sealant surface
  • 140 indicates a lead assembly
  • 141 indicates a lead
  • 142 indicates a circuit board
  • 20 indicates a valve body structure
  • 21 indicates a housing
  • 211 indicates a connector.
  • a component when a component is called “installed on” another component, it may be directly on another component or a centered component may exist. When a component is considered to be “set on” another component, it can be directly set on another component or a centered component may exist at the same time. When a component is considered to be “fixed” to another component, it may be fixed directly to another component or there may be a centered component at the same time.
  • the present application provides an air conditioning system (not shown), which can be applied to the fields of cold storage, vehicle, household and the like.
  • the air-conditioning system includes an electronic expansion valve 100, which is installed on a pipe and is used to regulate the flow of the refrigerant in the air-conditioning system.
  • the air-conditioning system further includes components such as a compressor, a heat exchanger, and the like, and each component cooperates with each other to implement a cooling and / or cooling function of the air-conditioning system.
  • the electronic expansion valve 100 includes an electromagnetic coil structure 10 and a valve body structure 20.
  • the electromagnetic coil structure 10 is mounted on the valve body structure 20.
  • the electromagnetic coil structure 10 is mainly used to provide a The rotating magnetic field drives the mechanism in the valve body structure 20 to realize the function of adjusting the flow of the electronic expansion valve 100.
  • the valve body structure 20 includes a housing 21, a valve needle (not shown), and a rotor (not shown).
  • the housing 21 is a hollow structure, and a valve port (not shown) is opened in the housing 21.
  • the rotor and The valve needle is housed in the housing, one end of the valve needle is connected to the rotor, and the other end is matched with the valve port.
  • the rotor is matched with the electromagnetic coil structure 10, and the electromagnetic coil structure 10
  • the generated magnetic field drives the rotor to rotate, the rotor drives the valve needle to reciprocate and controls the opening of the valve port, thereby realizing the adjustment of the flow rate of the refrigerant.
  • valve body structure 20 also includes components such as a screw structure.
  • the above-mentioned components cooperate with each other to achieve the adjustment of the electronic expansion valve 100. Traffic capabilities.
  • the electromagnetic coil structure 10 includes a coil component 110, an insulation protective shell 120, a sealing compound 130, and a lead component 140.
  • the electromagnetic coil structure 10 is installed in the housing 21, and the insulation and protection shell 120 is provided in the coil component 110, and a receiving cavity 121 with a wire outlet 122 is enclosed between the coil and the component 110.
  • the gel body 130 is received and solidified in the storage cavity 121.
  • One end of the lead assembly 140 is embedded in the sealing gel body 130 and is electrically connected to the coil component 110. The other end extends out of the storage cavity from the outlet 122. Outside 121, it is used to connect with an external power source to realize the energization of the electromagnetic coil structure 100.
  • the coil assembly 110 includes a plastic-encapsulated casing 111 and a coil 112.
  • the coil 112 is received and fixed in the plastic-encapsulated casing 111.
  • the plastic-encapsulated casing 111 mainly supports and electrically isolates the plastic-encapsulated casing 111.
  • the housing 21 is used for installation between the electromagnetic coil structure 10 and the valve body structure 20, the coil 112 is used as a stator, the coil 112 is arranged coaxially with the rotor, and a magnetic field is generated after the coil 112 is energized. To drive the rotor to rotate.
  • the plastic casing 111 is a hollow structure with an opening.
  • the plastic-encapsulated casing 111 is made of a material having high insulation and strength such as plastic and mica, so that the plastic-encapsulated casing 111 has a large bearing capacity under the premise of having electrical insulation.
  • the plastic-encapsulated casing 111 is injection-molded from plastic.
  • the plastic casing 111 has a circular shape. Since the casing 21 is generally a cylindrical structure, setting the plastic-encapsulated casing 111 into a circular ring shape can make the connection between the plastic-encapsulated casing 111 and the casing 21 closer, thereby making electromagnetic
  • the connection between the coil structure 10 and the valve body structure 20 is stronger, and the structural stability of the electronic expansion valve 100 is improved.
  • a connecting piece 211 is provided between the plastic-molded housing 111 and the housing 21.
  • One end of the connecting piece 211 is connected to the plastic-molded housing 111 and the other end is connected to the housing 21, so that all The connection between the plastic casing 111 and the casing 21 is described.
  • the coil 112 is embedded in the plastic case 111, that is, the plastic case 111 covers the outer surface of the coil 112.
  • the coil 112 is disposed along the circumferential direction of the plastic case 111; therefore, after the coil 112 is energized, a rotating magnetic field is generated inside the plastic case 111, thereby driving the rotor to move.
  • the insulating protective shell 120 is disposed on the side wall 1111 of the plastic case 111, and is formed between the insulating case 120 and the side wall 1111 of the plastic case 111.
  • the receiving cavity 121 of the outlet 122 is described.
  • the accommodating cavity 121 is divided into a fixed cavity 1211 and an extension cavity 1212 which are communicated with each other.
  • the extension cavity 1212 is disposed near one end of the outlet 122, and the sealing body 130 is received and solidified in the fixed cavity 1211.
  • the insulating protective shell 120 may be made of a material having good electrical insulation properties, such as plastic, ceramics, and asbestos, that is, the insulating protective shell 120 has insulation properties.
  • the insulating protective shell 120 can be fixed to the sidewall 1111 of the plastic-encapsulated casing 111 by welding, bonding, screwing, or the like. In this embodiment, the insulating protective shell 120 is fixed to the side wall 1111 of the casing 11 by ultrasonic welding.
  • the insulating protective shell 120 includes a main body 120 a and a connecting portion 120 b.
  • the main body 120 a and the side wall 1111 of the plastic-encapsulated casing 111 are enclosed to form the outlet.
  • the receiving cavity 122 of the mouth 121, and the connection portion 120b is provided on a side of the main body 120a facing the plastic-molded casing 111, so as to realize the connection between the main body 120a and the plastic-molded casing 111.
  • the cross-section of the main body 120a is U-shaped, the U-shaped opening of the main body 120a is provided toward the plastic housing 111, and the connection portion 120b is arranged in the U-shaped of the main body 120a.
  • the main body 120a includes a fixing portion 1201 and an extension portion 1202 which are respectively spaced from the side wall 1111 of the plastic-molded casing 111, and the extension portion 1202 is disposed near the outlet 121, and the fixing portion
  • the fixing cavity 1211 is defined between 1201 and the side wall 1111 of the plastic-molded casing 111
  • the extension cavity 1212 is defined between the extension 121 b and the sidewall 1111 of the plastic-molded casing 111.
  • the connecting portion 120b is located on a side of the insulating protective shell 120 facing the outer shell 21, and the connecting portion 120b is adhered to the outer shell 21 and is ultrasonically welded to realize the insulating protective shell 120 It is connected with the plastic casing 111.
  • the connecting portion 120b is a flat surface, and a mounting portion 1113 is provided on a side wall 1111 of the plastic-encapsulated casing 111.
  • An outer surface of the mounting portion 1113 is also a flat surface, and the connecting portion 120b is attached to the flat portion.
  • the receiving portion 121 is formed on the mounting portion 1113, and is formed between the insulating protective shell 120 and the mounting portion 1113. It can be understood that the mounting portion 1113 can also be used as an identification portion to identify the position of the receiving cavity 121, so that the installation of the lead assembly 140 is more convenient and faster.
  • the connecting portion 120 b is provided with a welding line 120 c.
  • the welding line 120 c is fused with the plastic casing 111 to achieve a welding effect.
  • the cross section of the welding line 120c is triangular, and the connecting portion 120b is not provided with the welding line 120c at a position near the outlet 121.
  • the lead assembly 140 includes a lead 141.
  • One end of the lead wire 141 is embedded in the sealing compound 130 and is electrically connected to the coil 112, and the other end extends out of the wire outlet 122 and is electrically connected to an external power source, so as to realize the energization of the coil 112. Therefore, the main function of the lead wire 141 is to connect the coil 112 with an external power source, so that the external power source provides power to the coil 112.
  • the coil assembly 110 further includes a pin 113, which is fixed on the plastic-encapsulated housing 111, one end of the pin 113 is connected to the coil 112, and the other end is received in the fixing cavity 1211. .
  • the lead assembly 140 further includes a circuit board 142, which is housed in the fixing cavity 1211 and is electrically connected to an end of the lead 141 buried in the sealing compound 130, and the pin 113 is plugged in.
  • the circuit board 142 is electrically connected to the circuit board 142 to achieve the electrical connection between the lead 141 and the coil 111.
  • the pin 113 is a rod-shaped metal piece.
  • the pin 113 needs to be inserted into the circuit board 142, which is convenient and quick to install.
  • the sealing compound 130 is a gel, which is injected into the fixing cavity 1211. After the curing, the sealing compound 130 is formed, and one end of the lead assembly 140 is fixed in the fixing cavity 1211. A sealing surface 131 is formed on an end of the sealing compound 130 near the wire outlet 121. It can be understood that, since the sealing compound 130 is located in the fixing cavity 1211, the extension portion 1202 protrudes from the sealing surface 131.
  • the extension cavity 1212 will limit / support the lead 141, thereby reducing the bending angle of the lead 141 at the sealing surface 131 and reducing
  • the probability of the lead wire 141 being broken due to the transitional bending of the lead wire 141 and the breakage of the lead wire 141 effectively prolongs the service life of the lead wire 141 and makes the service life of the electromagnetic coil structure 10 longer.
  • an end of the insulation protective shell 120 near the outlet 122 has a support surface 124. Under the action of an external force, the lead wire 141 can abut against the support surface 124.
  • the end of the plastic casing 111 near the outlet 122 has a fixing surface 1112.
  • the distance from the supporting surface 124 to the position where the lead wire 141 protrudes from the sealing surface 131 is L1, and the supporting surface 124 is fixed to the fixing surface.
  • the distance of the surface 1112 is L2, and the relationship between L1 and L2 is: L1> L2> 0.
  • the sealant 130 is generally formed by pouring a colloid material into the receiving cavity 121. Before the sealant 130 is molded, the colloid material is fluid. If the distance from the support surface 124 to the lead 141 protruding from the sealing surface 131 is smaller than the distance from the support surface 124 to the fixing surface 1112 (that is, L1 ⁇ L2), the molding process of the sealing body 130 is performed. The colloid material will overflow from the containing cavity 121 and even flow to the fixed surface 1112, which will not only cause pollution to the plastic casing 111, but also reduce the protrusion of the support surface 1244 to the lead 141. The distance at the sealing surface 131.
  • the distance from the support surface 124 to the position where the lead wire 141 protrudes from the sealing surface 131 is set to be smaller than the distance from the support surface 124 to the fixed surface 1112 (that is, L1> L2), which not only prevents colloids Material spillage causes pollution to the plastic casing 111, and can also effectively extend the distance from the lead 141 protruding from the sealing surface 131, thereby reducing the lead 141 that is bent in the
  • the bending angle at the sealing surface 131 reduces the probability that the lead wire 141 has a lead skin crack and a lead 141 break at the sealing surface 131.
  • the sealing compound 130 mainly functions to seal, fix, and electrically insulate.
  • the sealing compound 130 is generally made of a colloid material with good electrical insulation properties such as polyester, epoxy, polyurethane, polybutadiene acid, silicone, polyesterimine, and polyimide.
  • the sealant 130 is formed by pouring a liquid glue material into the fixing cavity 1211 and cooling it. Therefore, the shape of the sealant 130 matches the shape of the inner wall of the fixing cavity 1211.
  • the encapsulant 130 is an epoxy colloid.
  • the epoxy adhesive has strong adhesion, good electrical properties, mechanical properties, high chemical stability and dimensional stability, so that the sealant 130 also has good electrical properties, good mechanical properties, and chemical properties. High stability and strong adhesion. Therefore, while maintaining good connection and stability with the receiving cavity 121, the gel body 130 also has advantages such as good electrical insulation performance and difficulty in deformation due to external forces.
  • the distance between the main body 120 a and the plastic-molded casing 111 is L3, and the relationship between L3 and L1 is: L1> L3, that is, the supporting surface 124 to the The distance that the lead 141 protrudes from the sealing surface 131 is greater than the distance between the main body 120 a and the plastic-encapsulated casing 111.
  • the distance from the support surface 124 to the position where the lead wire 141 protrudes from the sealing surface 131 is set to be greater than the distance between the main body 120a and the plastic-encapsulated casing 111, which can greatly reduce The distance between the edge of the extending cavity 1212 and the lead 141 at the sealing surface 131 is further reduced, so that the bending angle of the bent lead 141 at the sealing surface 131 is smaller, which greatly reduces the occurrence of the lead skin of the bent lead 141. The probability of breakage, breakage of the lead wire 141, etc. makes the lead wire 141 have a longer service life.
  • a gap between the extension portion 1202 and the side wall 1111 of the molded case 111 is L4, and the fixed portion 1201 and the molded case
  • the gap between the side walls 1111 of 111 is L5, and the relationship between L4 and L5 is: 0 ⁇ L4 ⁇ L5.
  • the fixing cavity 1211 is used to receive and fix the pins 113 and the circuit board 142, and protects the pins 113, the circuit board 142, and the leads 141.
  • the extension cavity 1212 mainly supports the bent lead 141. Therefore, on the premise of ensuring the electrical safety of the lead 141, the circuit board 142, and the pin 113 in the fixed cavity 1211, the gap between the extension 1202 and the side wall 1111 of the plastic housing 111 is effectively reduced.
  • the bending angle of the lead 141 at the sealing surface 131 can be further reduced, the probability of the lead skin rupture, the lead 141 breaking, etc. at the sealing surface 131 can be reduced, and the service life of the lead 141 can be effectively extended.
  • an eversion part 123 is provided at an end of the extension part 1202 near the outlet 121, and the eversion part 123 and the extension part 1202
  • the extension direction is set at an included angle, and the icon of the included angle is ⁇ .
  • the valgus portion 123 has a limit / support effect on the bent lead 141, and when the lead 141 is bent, the lead 141 is limited / supported by the valgus portion 123.
  • the transition is relatively smooth, that is, the angle of the secondary bending of the lead 141 is reduced, and the risk of the lead skin breaking is reduced.
  • an included angle between the eversion part 123 and the extension part 1202 is an acute angle (ie, an included angle between the eversion part 123 and the extension part 1202 is less than 90 degrees, ⁇ ⁇ 90 °), it can be understood that setting this angle to an acute angle can make the lead 141 be supported by the valgus portion 123 to form an acute angle transition, and further reduce the bending of the lead 141 at the folded portion 123. Bending angle; thus, the probability of the lead skin 141 being broken at the edge of the extended portion 1202, the lead 141 being broken, and the like after the bent lead 141 is reduced.
  • the advantage of the present application is that, since the sealing compound 130 is received and solidified in the fixing cavity 1211, the extension portion 1202 protrudes from the sealing surface 131, so the extension portion 1202 supports / limits the bent lead 141. effect.
  • the edge of the outlet 122 can effectively reduce the bending angle of the lead 141, and reduce the lead skin rupture and the lead 141 break due to the transitional bending of the lead 141 The probability of such a situation effectively prolongs the service life of the lead 141, thereby making the service life of the electromagnetic coil structure 10 longer.
  • the electronic expansion valve 10 and the air conditioner including the electromagnetic coil structure 10 also have a longer service life.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Motor Or Generator Frames (AREA)
  • Compressor (AREA)

Abstract

一种电磁线圈结构，包括线圈组件（110）、绝缘防护板（120）、封胶体（130）以及引线组件（140），线圈组件（110）包括塑封壳体（111）及收容并固定于塑封壳体（111）内的线圈（112），绝缘防护板（120）设置于塑封壳体（111）的侧壁（1111），并与侧壁（1111）之间形成具有出线口（122）的收容腔（121），收容腔（121）分为固定腔（1211）及延伸腔（1212），延伸腔（1212）位于收容腔（121）靠近出线口（122）的一端，封胶体（130）收容并固化于固定腔（1211）内，封胶体（130）靠近出线口（122）的一端形成有封胶面（131）；引线组件（140）包括引线（141），引线（141）的一端埋设于封胶体（130）内并与线圈（112）电连接，另一端伸出于出线口（122）。一种包括电磁线圈结构的电子膨胀阀以及一种包括电子膨胀阀的空调系统。这种电磁线圈结构降低了引线由于过度弯折造成的引线皮破裂、引线断裂等情况的发生，延长了引线及电磁线圈结构的使用寿命。

Description

空调系统、电子膨胀阀及其电磁线圈结构
相关申请
本申请要求2018年7月28日申请的，申请号为2018212109441，名称为“空调、电子膨胀阀及其电磁线圈结构”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及空调设备制造技术领域，特别是涉及空调、电子膨胀阀及其电磁线圈结构。
背景技术
电子膨胀阀，又称节流阀或调节阀，是空调系统中的主要元件之一，其主要起节流降压及调节流量的作用。电子膨胀阀一般包括电磁线圈结构及与电磁线圈结构连接的阀体结构。电子膨胀阀在安装前不可避免地需要在仓库、车间等各工位之间流转，电子膨胀阀的流转通常都是工人通过抓紧设置于电磁线圈结构上的引线来实现。
在电子膨胀阀的流转过程中，引线根部由于来回弯折而极易发生引线皮破裂、引线断裂等情况；特别是在低温环境下，引线皮容易变硬发脆，使得引线弯折更容易断裂，大大影响了电子膨胀阀的使用寿命。
发明内容
基于此，有必要针对上述技术问题，提供一种使用寿命较长的空调系统、电子膨胀阀及其电磁线圈结构。
一种电磁线圈结构，包括，
线圈组件，包括塑封壳体及收容并固定于所述塑封壳体内的线圈；
绝缘防护板，设置于所述塑封壳体的侧壁，并与所述塑封壳体的侧壁之间围成具有出线口的收容腔，所述收容腔包括互相连通的固定腔及延伸腔，所 述延伸腔靠近所述出线口的设置；
封胶体，收容并固化于所述固定腔内，所述封胶体靠近所述出线口的一端形成有封胶面；及
引线组件，包括引线，所述引线的一端埋设于所述封胶体内并与所述线圈电连接，另一端伸出所述出线口。
在其中一个实施例中，所述绝缘防护板包括分别与所述塑封壳体的侧壁之间间隔设置的固定部以及延伸部，所述延伸部靠近所述出线口设置，所述固定部与所述壳体的侧壁之间围成所述固定腔，所述延伸部与所述塑封壳体的侧壁之间围成所述延伸腔。
在其中一个实施例中，所述延伸部与所述塑封壳的侧壁之间的间隙小于所述固定部与所述塑封壳体的侧壁之间的间隙。
在其中一个实施例中，所述延伸部的边缘设置有外翻部。
在其中一个实施例中，所述外翻部与所述绝缘防护板的延伸方向之间的夹角为锐角。
在其中一个实施例中，所述绝缘防护板靠近所述出线口的一端具有支撑面，所述引线能够抵靠于所述支撑面，所述塑封壳体靠近所述出线口的一端具有固定面，所述支撑面到所述引线伸出所述封胶面处的距离大于所述支撑面到所述固定面的距离。
所述绝缘防护板包括主体，所述支撑面到所述引线伸出所述封胶面处的距离大于主体到所述塑封壳体的距离。
在其中一个实施例中，所述塑封壳体的侧壁设置有安装部，所述绝缘防护板安装于所述安装部，所述绝缘防护板与所述安装部的表面之间形成所述收容腔。
在其中一个实施例中，所述线圈组件还包括插针，所述引线组件还包括线路板，所述插针固定于所述塑封壳体上，且所述插针的一端与所述线圈电连接，另一端收容于所述固定腔内，所述线路板收容于所述固定腔内并与所述引线埋设于所述封胶体内的一端电连接，所述插针插接于所述电路板并与所述电路板电连接，以实现所述引线与所述线圈之间的电连接。
本申请还提供如下技术方案
一种电子膨胀阀，其特征在于，包括
上述电磁线圈结构；及
阀体结构，包括呈中空结构的外壳、收容于所述外壳内的转子及与所述转子传动连接的阀针，所述壳体设于所述外壳的一端，且所述转子与所述线圈配合。
本申请还提供如下技术方案
一种空调系统，包括上述电子膨胀阀。
上述空调、电子膨胀阀及其电磁线圈结构具有以下优点：
由于封胶体收容并固化于固定腔，故延伸腔突出于封胶面，所以延伸腔对弯折后的引线具有限位作用。因此，在电子膨胀阀流转的过程中，当引线折弯时，出线口的边缘可有效地减小引线的弯折角度，大大降低了引线由于过渡弯折而造成引线皮破裂、引线断裂等情况发生的概率，延长了引线的使用寿命，进而使得电磁线圈结构的使用寿命更长。因此，包含有上述电磁线圈结构的电子膨胀阀及空调的使用寿命也更长。
附图说明
图1为本申请提供的电子膨胀阀的结构示意图；
图2为本申请提供的电磁线圈结构；
图3为本申请提供的电磁线圈结构的局部剖视图；
图4为本申请提供的图3中A处局部放大图；
图5为本申请提供的图3中带有距离标号的结构示意图；
图6为本申请提供的图5的仰视图；
图7为本申请提供的防护板一实施例的结构示意图；
图8为本申请提供的图7中防护板的后视图；
图9为本申请提供的防护板一实施例的结构示意图；
图10为本申请提供的图9中防护板的左视图；
图11为本申请提供的防护板一实施例的结构示意图；
图12为本申请提供的图11中防护板的左视图。
图中，100表示电子膨胀阀、10表示电磁线圈结构、110表示线圈组件、111表示塑封壳体、1111表示塑封壳体的侧壁、112表示线圈、113表示插针、120表示绝缘防护板、120a表示主体、1201表示固定部、1202表示延伸部、120b表示连接部、120c表示焊接线、121表示收容腔、122表示出线口、1211表示固定腔、1212表示延伸腔、122表示出线口、123表示外翻部、124表示支撑面、130表示封胶体、131表示封胶面、140表示引线组件、141表示引线、142表示线路板、20表示阀体结构、21表示外壳、211表示连接件。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明的是，当组件被称为“装设于”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“设置于”另一个组件，它可以是直接设置在另一个组件上或者可能同时存在居中组件。当一个组件被认为是“固定于”另一个组件，它可以是直接固定在另一个组件上或者可能同时存在居中组件。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请提供了一种空调系统(图未示)，所述空调系统可以应用于冷库、车载、家用等领域。如图1所示，所述空调系统包括电子膨胀阀100，所述电子膨胀阀100安装于管道上，用于调节空调系统中制冷剂的流量。
当然，所述空调系统除了包括所述电子膨胀阀100，其还包括压缩机、换热器等部件，各个部件互相配合以实现所述空调系统的制冷和/或制冷功能。
请继续参阅图1，所述电子膨胀阀100包括电磁线圈结构10以及阀体结构20，所述电磁线圈结构10安装于所述阀体结构20上，所述电磁线圈结构10主要用于提供一旋转的磁场，以驱动阀体结构20内的机构运动，实现电子膨胀阀100的调节流量的功能。
阀体结构20包括外壳21、阀针(图未示)以及转子(图未示)，所述外壳21为中空结构，所述外壳21内开设有阀口(图未示)，所述转子以及所述阀针收容于所述外壳内，所述阀针的一端与所述转子连接，另一端与所述阀口配合，所述转子与所述电磁线圈结构10配合，所述电磁线圈结构10产生的磁场带动所述转子转动，所述转子带动所述阀针往返运动并控制所述阀口开启的大小，进而实现制冷剂流量大小的调节。
当然，除了描述的所述外壳21、所述阀针以及所述转子等部件，所述阀体结构20还包括螺杆结构等部件，上述各部件之间互相配合以实现所述电子膨胀阀100调节流量的功能。
请一并参阅图2至图4，电磁线圈结构10包括线圈组件110、绝缘防护壳120、封胶体130及引线组件140。所述电磁线圈结构10安装于所述外壳21，所述绝缘防护壳120设于所述线圈组件110，并与所述线圈组件110之间围成具有出线口122的收容腔121，所述封胶体130收容并固化于收容腔121内，所述引线组件140的一端埋设于所述封胶体130内并与所述线圈组件110电连接，另一端从所述出线口122伸出所述收容腔121外，用于与外部电源连接，以实现所述电磁线圈结构100的通电。
线圈组件110包括塑封壳体111及线圈112，所述线圈112收容并固定于塑封壳体111内，所述塑封壳体111主要起支撑及电绝缘作用，所述塑封壳体111安装于所述外壳21上，从而实现所述电磁线圈结构10与阀体结构20之间的安装，所述线圈112用作定子使用，线圈112与所述转子同轴设置，所述线圈112通电后产生磁场，以带动所述转子转动。
优选地，所述塑封壳体111为具有开口的中空结构。一般情况下，塑封壳体111由塑胶、云母等具有绝缘性及强度较高的材料制成，以使塑封壳体111在具有电绝缘性的前提下具有较大的承载力。
在本实施例中，所述塑封壳体111由塑胶注塑成型。所述塑封壳体111呈圆环形。由于所述外壳21一般也为圆筒状结构，将所述塑封壳体111设置为圆环形，可以使所述塑封壳体111与所述外壳21之间的连接更为紧密，进而使得电磁线圈结构10与阀体结构20的连接更为牢固，提高电子膨胀阀100的结构稳定性。
优选地，所述塑封壳体111与所述外壳21之间设有连接件211，所述连接件211的一端与所述塑封壳体111连接，另一端与所述外壳21连接，从而实现所述塑封壳体111与所述外壳21之间的连接。
进一步的，所述线圈112埋设于所述塑封壳体111内，即所述塑封壳体111包覆于所述线圈112的外表面。所述线圈112沿所述塑封壳体111的周向设置；因此，所述线圈112通电后会在塑封壳体111的内部产生旋转的磁场，从而驱动所述转子运动。
请一并参阅图7及图8，在一实施例中，所述绝缘防护壳120设置于所述塑封壳体111的侧壁1111，并与塑封壳体111的侧壁1111之间形成具有所述出线口122的所述收容腔121。所述收容腔121分为互相连通的固定腔1211及延伸腔1212，所述延伸腔1212靠近出线口122的一端设置，所述封胶体130收容并固化于所述固定腔1211内。
可选地，绝缘防护壳120可以由塑胶、陶瓷、石棉等电绝缘性较好的材料制成，即所述绝缘防护壳120具有绝缘性。绝缘防护壳120可以通过焊接、粘接、螺接等方式固定于所述塑封壳体111的侧壁1111。本实施例中，绝缘防护壳120是通过超声波焊接的方式固定于所述壳体11的侧壁1111。
进一步地，如图3及图7所示，所述绝缘防护壳120包括主体120a以及连接部120b，所述主体120a与所述塑封壳体111的侧壁1111之间围设形成具有所述出线口121的所述收容腔122，所述连接部120b设于所述主体120a面向所述塑封壳体111的一侧，用以实现所述主体120a与所述塑封壳体111之间的连接。
优选地，所述主体120a的横截面呈“U”形，所述主体120a的“U”形开口朝向所述塑封壳体111设置，所述连接部120b布设于所述主体120a“U”形开口的周向；所述主体120a一侧敞口设置，即形成所述出线口121。
进一步地，所述主体120a包括分别与所述塑封壳体111的侧壁1111之间间隔设置的固定部1201以及延伸部1202，所述延伸部1202靠近所述出线口121设置，所述固定部1201与所述塑封壳体111的侧壁1111之间围成所述固定腔1211，所述延伸部121b与所述塑封壳体111的侧壁1111之间围成所述延伸腔1212。
进一步地，所述连接部120b位于所述绝缘防护壳120面向所述外壳21的一侧，所述连接部120b贴合于所述外壳21，并通过超声波焊接，以实现所述绝缘防护壳120与所述塑封壳体111之间连接。
优选地，所述连接部120b为平面，所述塑封壳体111的侧壁1111上设有安装部1113，所述安装部1113的外表面也为平面，所述连接部120b贴合于所述安装部1113上，且所述绝缘防护壳120与所述安装部1113之间形成所述收容腔121。可以理解的是，所述安装部1113上也可以作为标识部使用，以标识所述收容腔121的位置，使所述引线组件140的安装更为方便、快捷。
进一步地，如图8所示，所述连接部120b上设置有焊接线120c，在焊接时，所述焊接线120c会与塑封壳体111熔合在一起，以实现焊接效果。
优选地，焊接线120c横截面呈三角形，所述连接部120b在靠近所述出线口121位置处不设置所述焊接线120c。
如图3及图4所示，所述引线组件140包括引线141。所述引线141的一端埋设于所述封胶体130内并与所述线圈112电连接，另一端伸出所述出线口122并与外部电源电连接，以实现所述线圈112的通电。因此，所述引线141的主要作用是连接所述线圈112与外部电源，以使外部电源为线圈112提供电能。
所述线圈组件110还包括插针113，所述插针113固定于所述塑封壳体111上且所述插针113的一端与所述线圈112连接，另一端收容于所述固定腔1211内。所述引线组件140还包括线路板142，所述线路板142收容于所述固定腔1211内并与所述引线141埋设于所述封胶体130内的一端电连接，所述插针113插接于所述电路板142并与所述电路板142电连接，以实现所述引线141与所述线圈111之间的电连接。
具体的，所述插针113为杆状金属件。当需要将所述引线141与所述线 圈112电连接时，只需要将插针113插入线路板142即可，不仅安装方便且快捷。
所述封胶体130为胶体，其注入所述固定腔1211内，固化后形成所述封胶体130，并将所述引线组件140的一端固定于所述固定腔1211内。所述封胶体130靠近所述出线口121的一端形成有封胶面131。可以理解的，由于所述封胶体130位于所述固定腔1211内，因此，延伸部1202是突出于所述封胶面131。电子膨胀阀100在流转过程中，当引线141发生弯折时，延伸腔1212对引线141会起限位/支撑的作用，从而，减小引线141在封胶面131处的弯折角度，降低引线141由于过渡弯折而造成引线皮破裂导致引线141断裂等情况发生的概率，有效地延长了引线141的使用寿命，使得电磁线圈结构10的使用寿命更长。
进一步地，如图5所示，所述绝缘防护壳120靠近所述出线口122的一端具有支撑面124，在外力的作用下，所述引线141能够抵靠于所述支撑面124，所述塑封壳体111靠近所述出线口122的一端具有固定面1112，所述支撑面124到所述引线141伸出所述封胶面131处的距离为L1，所述支撑面124到所述固定面1112的距离为L2，L1与L2的关系为：L1＞L2＞0。
可以理解的是，所述封胶体130一般是通过在收容腔121内浇灌胶体材料后成型的，在封胶体130成型之前，胶体材料具有流动性的。若所述支撑面124到所述引线141伸出所述封胶面131处的距离小于所述支撑面124到所述固定面1112的距离(即L1＜L2)，则在封胶体130成型过程中，胶体材料会从收容腔121中溢出，甚至流至固定面1112，不仅会对所述塑封壳体111造成污染，而且还会减小所述支撑面1244到所述引线141伸出所述封胶面131处的距离。因此，将所述支撑面124到所述引线141伸出所述封胶面131处的距离设置为小于所述支撑面124到所述固定面1112的距离(即L1＞L2)，不但防止胶体材料溢出，对塑封壳体111造成的污染，而且还可以效地延长所述到所述引线141伸出所述封胶面131处的距离，从而，减小发生弯折的引线141在所述封胶面131处的弯折角度，降低所述引线141在所述封胶面131处发生引线皮破裂、引线141断裂的概率。
可以理解的是，所述封胶体130主要起密封、固定及电绝缘的作用。在本实施例中，所述封胶体130一般由聚酯、环氧、聚氨酯、聚丁二烯酸、有机硅、 聚酯亚胺、聚酰亚胺等电绝缘性能较好的胶体材料制成。具体的，封胶体130是通过将液体胶材料浇灌于固定腔1211内，待冷却后形成的。因此，封胶体130的形状与固定腔1211的内壁的形状相匹配。
优选地，所述封胶体130为环氧胶体。可以理解的是，环氧胶具有较强的粘附力、良好的电学性能、力学性能、较高的化学稳定性及尺寸稳定性，使得封胶体130也具有电学性能良好、力学性能好、化学稳定性高及粘附力强等优势。因此，胶体130在保持与收容腔121具有很好的连接稳固性的同时，还具有较好的电绝缘性能及受外力不容易变形等优点。
进一步地，如图5及图6所示，所述主体120a到所述塑封壳体111之间的距离为L3，L3与L1的关系为：L1＞L3，即所述支撑面124到所述引线141伸出所述封胶面131处的距离大于所述主体120a到所述塑封壳体111之间的距离。
可以理解的是，将所述支撑面124到所述引线141伸出所述封胶面131处的距离设置为大于所述主体120a到所述塑封壳体111之间的距离，能够大大减小了延伸腔1212的边缘到引线141在封胶面131处的距离，进而使得发生弯折的引线141在封胶面131处的弯折角度更小，大大降低发生弯折的引线141发生引线皮破裂、引线141断裂等情况的概率，使得引线141具有更长的使用寿命。
请一并参阅图9及图10，在一实施例中，所述延伸部1202与所述塑封壳体111的侧壁1111之间的间隙为L4，所述固定部1201与所述塑封壳体111的侧壁1111之间的间隙为L5，L4与L5之间的关系为：0＜L4＜L5。
可以理解的是，固定腔1211用于收容并固定插针113及线路板142，并对插针113、线路板142及引线141起防护作用。而延伸腔1212主要是对发生弯折的引线141起支撑作用。因此，在保证引线141、线路板142及插针113在固定腔1211内的电气安全的前提下，有效地减小了延伸部1202与所述塑封壳体111的侧壁1111之间的间隙，能够进一步减小引线141在封胶面131处的弯折角度，降低引线141在封胶面131处发生引线皮破裂、引线141断裂等情况的概率，有效地延长的引线141的使用寿命。
请一并参阅图11及图12，在一实施例中，所述延伸部1202靠近所述出线口121的一端设置有外翻部123，且所述外翻部123与所述延伸部1202的延 伸方向呈夹角设置，该夹角的图标为β。可以理解的是，所述外翻部123对发生弯折的引线141具有限位/支撑作用，当所述引线141发生弯折时，所述引线141会受到外翻部123限位/支撑形成比较平滑的过渡，即减少引线141二次弯折的角度，降低引线皮破裂等风险。
优选地，所述外翻部123与所述延伸部1202的延伸方向呈夹角为锐角(即所述外翻部123与所述延伸部1202的延伸方向呈夹角小于90度，β＜90°)，可以理解的是，将该角度设置为锐角，可以使所述引线141受到所述外翻部123的支撑形成锐角过渡，进一步减小弯折后的引线141在翻折部123处的折弯角度；从而，降低弯折后的引线141在延伸部1202的边缘发生引线皮破裂、引线141断裂等情况的概率。
本申请的优点在于：由于所述封胶体130收容并固化于固定腔1211，故延伸部1202是突出于所述封胶面131，所以延伸部1202对弯折后的引线141有支撑/限位作用。在电子膨胀阀10流转的过程中，当引线141弯折时，出线口122的边缘可有效地减小引线141的弯折角度，降低引线141由于过渡弯折而造成引线皮破裂、引线141断裂等情况发生的概率，有效地延长了引线141的使用寿命，进而使得电磁线圈结构10的使用寿命更长。
可以理解的是，由于所述电磁线圈结构10具有较长的使用寿命，因此，包含有上述电磁线圈结构10的电子膨胀阀10及空调的使用寿命也更长。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种电磁线圈结构，其特征在于，包括，
    线圈组件(110)，包括塑封壳体(111)及收容并固定于所述塑封壳体(111)内的线圈(112)；
    绝缘防护板(120)，设置于所述塑封壳体(111)的侧壁(1111)，并与所述塑封壳体(111)的侧壁(1111)之间围成具有出线口(122)的收容腔(121)，所述收容腔(121)包括互相连通的固定腔(1211)及延伸腔(1212)，所述延伸腔(1212)收容腔(121)靠近所述出线口(122)的设置；
    封胶体(130)，收容并固化于所述固定腔(1211)内，所述封胶体(130)靠近所述出线口(122)的一端形成有封胶面(131)；及
    引线组件(140)，包括引线(141)，所述引线(141)的一端埋设于所述封胶体(130)内并与所述线圈(112)电连接，另一端伸出所述出线口(122)。
  2. 根据权利要求1所述的电磁线圈结构，其特征在于，所述绝缘防护板(120)包括分别与所述塑封壳体(111)的侧壁(1111)之间间隔设置的固定部(1201)以及延伸部(1202)，所述延伸部(1202)靠近所述出线口(122)设置，所述固定部(1201)与所述塑封壳体(111)的侧壁(1111)之间围成所述固定腔(1211)，所述延伸部(1202)与所述塑封壳体(111)的侧壁(1111)之间围成所述延伸腔(1212)。
  3. 根据权利要求2所述的电磁线圈结构，其特征在于，所述延伸部(1202)与所述塑封壳体(111)的侧壁(1111)之间的间隙小于所述固定部(1201)与所述塑封壳体(111)的侧壁(1111)之间的间隙。
  4. 根据权利要求2所述的电磁线圈结构，其特征在于，所述延伸部(1202)的边缘设置有翻折部(123)。
  5. 根据权利要求4所述的电磁线圈结构，其特征在于，所述翻折部(123)与所述绝缘防护板(120)的延伸方向之间的夹角为锐角。
  6. 根据权利要求1所述的电磁线圈结构，其特征在于，所述绝缘防护板(120)靠近所述出线口(122)的一端具有支撑面(124)，所述引线(141)能够抵靠于所述支撑面(124)，所述塑封壳体(111)靠近所述出线口(122)的 一端具有固定面(1112)，所述支撑面(124)到所述引线(141)伸出所述封胶面(131)处的距离大于所述支撑面(124)到所述固定面(1112)的距离。
  7. 根据权利要求6所述的电磁线圈结构，其特征在于，所述绝缘防护板(120)包括主体(120a)，所述支撑面(124)到所述引线(141)伸出所述封胶面(131)处的距离大于主体(120a)到所述塑封壳体(111)的距离。
  8. 根据权利要求1所述的电磁线圈结构，其特征在于，所述塑封壳体(111)的侧壁(1111)设置有安装部(1113)，所述绝缘防护板(120)安装于所述安装部(1113)，所述绝缘防护板(120)与所述安装部(1113)的表面之间形成所述收容腔(121)。
  9. 根据权利要求1所述的电磁线圈结构，其特征在于，所述线圈组件(110)还包括插针(113)，所述引线组件(140)还包括线路板(142)，所述插针(113)固定于所述塑封壳体(111)上，且所述插针(113)的一端与所述线圈(112)电连接，另一端收容于所述固定腔(1211)内，所述线路板(142)收容于所述固定腔(1211)内并与所述引线(141)埋设于所述封胶体(130)内的一端电连接，所述插针(113)插接于所述电路板(142)并与所述电路板(142)电连接，以实现所述引线(141)与所述线圈(112)之间的电连接。
  10. 一种电子膨胀阀，其特征在于，包括，
    如权利要求1至9任意一项所述的电磁线圈结构；
    阀体结构(20)，包括呈中空结构的外壳(21)、收容于所述外壳(21)内的转子及与所述转子传动连接的阀针，所述塑封壳体(111)设于所述外壳(21)的一端，且所述转子与所述线圈(112)配合。
  11. 一种空调系统，其特征在于，包括如权利要求10所述的电子膨胀阀。
PCT/CN2019/097884 2018-07-28 2019-07-26 空调系统、电子膨胀阀及其电磁线圈结构 WO2020024877A1 (zh)

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