CN114629283A - Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment - Google Patents
Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment Download PDFInfo
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- CN114629283A CN114629283A CN202011483466.3A CN202011483466A CN114629283A CN 114629283 A CN114629283 A CN 114629283A CN 202011483466 A CN202011483466 A CN 202011483466A CN 114629283 A CN114629283 A CN 114629283A
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- stator
- expansion valve
- electronic expansion
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- assembly
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 23
- 239000000565 sealant Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 235000006506 Brasenia schreberi Nutrition 0.000 claims 1
- 244000267222 Brasenia schreberi Species 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 239000000084 colloidal system Substances 0.000 description 11
- 239000000243 solution Substances 0.000 description 8
- ONBQEOIKXPHGMB-VBSBHUPXSA-N 1-[2-[(2s,3r,4s,5r)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4,6-dihydroxyphenyl]-3-(4-hydroxyphenyl)propan-1-one Chemical compound O[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1OC1=CC(O)=CC(O)=C1C(=O)CCC1=CC=C(O)C=C1 ONBQEOIKXPHGMB-VBSBHUPXSA-N 0.000 description 7
- 229940126142 compound 16 Drugs 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000003292 glue Substances 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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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
- 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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a stator assembly for an electronic expansion valve, the electronic expansion valve and refrigeration equipment, wherein the stator assembly for the electronic expansion valve comprises a stator main body and a plurality of contact pins, one end of each contact pin is arranged in the stator main body, the other end of each contact pin extends out of the stator main body, the plurality of contact pins are provided with extending sections extending out of the stator main body, the extending sections are respectively arranged into a protecting section and an exposed section from one end close to the stator main body to one end far away from the stator main body, and waterproof parts hermetically connected with the stator main body are arranged on the peripheries of the protecting sections of the plurality of contact pins. The technical scheme of the invention can reduce the possibility of short circuit caused by water vapor entering among a plurality of contact pins of the stator assembly of the electronic expansion valve.
Description
Technical Field
The invention relates to the technical field of throttling devices, in particular to a stator assembly for an electronic expansion valve, the electronic expansion valve and refrigeration equipment.
Background
The electronic expansion valve, also called as throttle valve or regulating valve, is the main element in air conditioning system, and mainly plays the role of throttling, pressure reducing and flow regulating. The electronic expansion valve generally comprises a stator assembly and a valve body assembly connected with the stator assembly. The stator assembly generally comprises a wiring part, a contact pin penetrating out of the wiring part, a protective shell covering the contact pin, a circuit board arranged in the protective shell and connected with the contact pin, and a sealing colloid accommodated and solidified in the protective shell.
Because the material of protecting crust is different with the material of sealing the colloid, the material of sealing the colloid and wiring portion is also different, so when electronic expansion valve used, receive temperature variation's influence, between protecting crust and the colloid, the condition of taking place the separation and producing slight gap very easily between colloid and the wiring portion is sealed, external steam is very easy through this slight gap infiltration contact pin department this moment, and then leads to the electric property to switch on and take place the condition of short circuit between the contact pin easily, influences stator module's use reliability.
Disclosure of Invention
The invention mainly aims to provide a stator assembly for an electronic expansion valve, which aims to reduce the possibility of short circuit between a plurality of contact pins due to water vapor entering the contact pins.
In order to achieve the above object, the present invention provides a stator assembly for an electronic expansion valve, comprising:
a stator body; and the number of the first and second groups,
a plurality of contact pins, it is a plurality of the one end of contact pin is located in the stator main part, the other end certainly the stator main part stretches out, and is a plurality of the contact pin has stretches out the outer section of stretching out of stator main part, stretch out the section from with the one end that stator main part is close to is to keeping away from the one end branch of stator main part is established to protection section and naked section, and is a plurality of the periphery of the protection section of contact pin be provided with stator main part sealing connection's waterproof portion.
In one embodiment, the stator body includes:
a stator housing; and
the coil assembly is accommodated in the stator shell, the plurality of contact pins are arranged at one end in the stator main body and electrically connected with the coil assembly, the extending section extends out of the stator shell, and the waterproof part and the stator shell are integrally molded through injection.
In one embodiment, the stator housing, the waterproof portion and the pin are integrally connected by injection molding.
In an embodiment, the waterproof portion is disposed on the protection segment of each contact pin, and any two adjacent waterproof portions are disposed at intervals.
In an embodiment, the circumferential dimension of the waterproof portion is gradually reduced in a direction in which the protection section points to the exposed section.
In one embodiment, the waterproof portion is conical or pyramidal.
In one embodiment, the waterproof part is wrapped on the peripheral wall of the protective section.
In an embodiment, the stator assembly further includes a circuit board, the circuit board is connected to the contact pins, at least one supporting portion is convexly disposed on a surface of the stator body, on which the protruding section protrudes, and the supporting portion abuts against a surface of the circuit board facing the stator body.
In an embodiment, in a direction in which the protection section points to the exposed section, one end of the support portion away from the stator main body is flush with or protrudes from one end of the waterproof portion away from the stator main body.
In an embodiment, the stator assembly for the electronic expansion valve further comprises a protective cover, the protective cover is arranged on the extending section and the waterproof part, and a sealing colloid is filled between the protective cover and the outer surface of the stator main body.
In one embodiment, the stator body is provided with a wiring part protruding outwards, the protruding section penetrates out of the wiring part, and the protective cover is connected with the wiring part.
The invention also provides an electronic expansion valve, which comprises a valve body assembly and a stator assembly for the electronic expansion valve, wherein the stator assembly for the electronic expansion valve comprises a stator main body and a plurality of contact pins, one end of each contact pin is arranged in the stator main body, the other end of each contact pin extends out of the stator main body, the plurality of contact pins are provided with extending sections extending out of the stator main body, the extending sections are respectively arranged into a protecting section and an exposed section from one end close to the stator main body to one end far away from the stator main body, and waterproof parts hermetically connected with the stator main body are arranged on the peripheries of the protecting sections of the plurality of contact pins. And the valve body assembly is connected with the stator assembly.
The invention also provides a refrigerating device which comprises the electronic expansion valve.
According to the technical scheme, the waterproof part hermetically connected with the stator main body is arranged on the periphery of the protection section of the contact pins, and at the moment, external water vapor needs to flow along the peripheral surface of the waterproof part and cross one end of the waterproof part far away from the stator main body to enter the space between the protection section and the waterproof part. The setting through waterproof portion has increased the steam route of stator main part surface to the exposed section of contact pin in other words to still increased the water transfer distance between each contact pin, avoided external steam directly to enter into the condition of protection section surface. Can effectively prevent that external steam from entering into between protection section and the waterproof portion, reduced external steam and the electrically conductive possibility of protection section contact to reduced between a plurality of contact pins because of entering steam and electric connection each other, lead to taking place short circuit or mutual signal interference's possibility between a plurality of contact pins, thereby promoted stator module and whole electronic expansion valve's use reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of one embodiment of a stator assembly for an electronic expansion valve of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a schematic structural view of the stator body and the pins of FIG. 1;
fig. 4 is an enlarged view at B in fig. 3.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a stator assembly for an electronic expansion valve.
In an embodiment of the present invention, referring to fig. 1 to 4 in combination, the stator assembly 10 for an electronic expansion valve includes a stator main body 11 and a plurality of pins 12, one end of each of the plurality of pins 12 is disposed in the stator main body 11, and the other end of each of the plurality of pins 12 extends from the stator main body 11, the plurality of pins 12 has an extending section 121 extending out of the stator main body 11, the extending section 121 is divided into a protecting section 122 and an exposed section 123 from the end close to the stator main body 11 to the end far from the stator main body 11, and a waterproof portion 111 hermetically connected to the stator main body 11 is disposed on an outer periphery of the protecting section 122 of the plurality of pins 12.
That is, one end of each pin 12 is disposed in the stator body 11, and the other end extends out from the stator body 11, and each pin 12 has an extending section 121 extending out of the stator body 11, and the exposed section 123 on the extending section 121 is connected to one end of the protection section 122 far away from the stator body 11. The outer periphery of each protection section 122 is provided with a waterproof portion 111 connected with the stator main body 11 in a sealing manner, i.e. the waterproof portion 111 is arranged around the outer periphery of the protection section 122. In practical application, water vapor enters the pins 12 along the surface of the stator main body 11, so that the pins 12 interfere with each other, the water vapor path from the surface of the stator main body 11 to the exposed sections 123 of the pins 12 is increased through the waterproof part 111, and the water transfer distance between the pins 12 is also increased.
According to the technical scheme, the waterproof part 111 connected with the stator main body 11 in a sealing manner is arranged on the periphery of the protection section 122 of the plurality of contact pins 12, and at the moment, external water vapor can enter between the protection section 122 and the waterproof part 111 only by flowing along the peripheral surface of the waterproof part 111 and passing over one end, far away from the stator main body 11, of the waterproof part 111. Equivalently, the water vapor path from the surface of the stator main body 11 to the exposed section 123 of the contact pin 12 is increased through the waterproof part 111, the water transfer distance between the contact pins 12 is increased, and the condition that the external water vapor directly enters the outer surface of the protection section 122 is avoided. Can effectively prevent that external steam from entering into between protection section 122 and waterproof portion 111, reduced external steam and the electrically conductive possibility of protection section 122 contact to reduced because of entering steam and mutual electric connection between a plurality of contact pins 12, lead to taking place short circuit or mutual signal interference's possibility between a plurality of contact pins 12, thereby promoted stator module 10 and whole electronic expansion valve's use reliability.
In one embodiment, the stator assembly 10 for the electronic expansion valve further includes a circuit board 13 and a lead-out wire 14, the lead-out wire 14 is electrically connected with the pin 12 through the circuit board 13, so that the circuit board 13 is used for electrically connecting the lead-out wire 14 with the pin 12, the electrical connection between the pin 12 and the lead-out wire 14 is ensured, and the reliability of the product can be improved. Of course, in other embodiments, lead wires 14 may be soldered directly to pins 12, or lead wires 14 may be electrically connected to pins 12 through terminals.
In one embodiment, the stator assembly 10 for the electronic expansion valve further includes a protective cover 15, the protective cover 15 is covered on the protruding section 121 and the waterproof portion 111, and a sealing compound 16 is filled between the protective cover 15 and the outer surface of the stator main body 11. The sealing body 16 encapsulates the waterproof part 111 and the extending part, so that external moisture can be prevented from directly entering between the outer surfaces of the protective cover 15 and the stator main body 11, and the sealing performance of the inserting needle 12 can be improved. And after sealing colloid 16 cladding outside waterproof portion 111, even lead to sealing colloid 16 and stator main part 11 or sealing colloid 16 and protection casing 15 between produce the gap because of temperature variation, when external steam entered from this gap, steam also can only flow along waterproof portion 111 outer peripheral face and the gap between the colloid 16 of sealing, only can get into between protection section 122 and waterproof portion 111 when steam crosses waterproof portion 111 and keeps away from the one end of stator main part 11. This increases the path for water vapor to enter between the protective section 122 and the waterproof section 111, and further reduces the possibility of a short circuit between the plurality of pins 12 due to water vapor entering. The protective cover 15 can provide effective protection for the sealant 16, and reduces the possibility that the sealant 16 and the parts packaged in the sealant 16 are damaged by collision.
The sealing body 16 may be formed by injection molding or by filling a sealant such as glue. The molding compound 16 may be epoxy or other material. When the circuit board 13 is arranged to electrically connect the lead-out wires 14 and the contact pins 12, the sealing compound 16 also encapsulates the circuit board 13 and part of the lead-out wires 14, so that the possibility of water vapor entering the circuit board 13 is reduced, and the waterproof performance of the stator assembly 10 is improved. Meanwhile, the sealing colloid 16 can also effectively fix the circuit board 13, so that the looseness between the contact pin 12 and the circuit board 13 can be effectively prevented, and the connection reliability between the contact pin 12 and the circuit board 13 is improved. Of course, in other embodiments, the sealing compound 16 may not be provided.
In one embodiment, the stator body 11 includes a stator housing 114 and a coil assembly 115, the coil assembly 115 is accommodated in the stator housing 114, one end of the plurality of pins 12 disposed in the stator body 11 is electrically connected to the coil assembly 115, the extending section 121 is disposed to extend out of the stator housing 114, and the waterproof portion 111 is integrally formed with the stator housing 114. Specifically, the stator housing 114 and the waterproof portion 111 are integrally connected by injection molding, when the stator assembly 10 is assembled, the coil assembly 115 is electrically connected to the pins 12, and then the stator housing 114 is formed by injection molding outside the coil assembly 115, that is, the coil assembly 115, the plurality of pins 12 and the stator housing 114 are integrally formed by injection molding, so that the stator housing 114 encapsulates the coil assembly 115, the pins 12 are fixed, and the gap between the pins 12 and the stator housing 114 can be reduced or even avoided. When the stator housing 114 is molded, the waterproof portion 111 is also integrally molded with the stator housing 114 on the outer periphery of the shield segment 122 of the pin 12. So set up, on the one hand can reduce the process of being connected waterproof portion 111 and stator shell 114, on the other hand can promote waterproof portion 111 and stator shell 114's connection reliability and leakproofness, can avoid waterproof portion 111 and stator shell 114 junction to get into the possibility of steam, further reduced because of getting into the possibility that steam and take place the short circuit between a plurality of contact pins 12. Of course, in other embodiments, waterproof portion 111 and stator housing 114 may be integrally formed in other manners. The coil block 115 and the stator housing 114 may be integrally formed in other manners. The pin 12 and the stator housing 114 may be provided separately.
In one embodiment, the shielding section 122 of each pin 12 is provided with waterproof portions 111, and any two adjacent waterproof portions 111 are arranged at intervals. That is, each protection section 122 is independently provided with a waterproof portion 111, and the interval sets up between two arbitrary waterproof portions 111, so be equivalent to steam only flow along two adjacent waterproof portion 111 outer peripheral faces simultaneously to when getting into between two waterproof portions 111 and two waterproof portion 111 respectively corresponding protection sections 122 simultaneously, just can make the condition of short circuit because of steam is electrically conductive between two contact pins 12, further reduced the possibility of taking place the short circuit because of getting into steam between a plurality of contact pins 12. In the embodiment of setting up the glue body 16, the glue body 16 is still filled between two adjacent waterproof portions 111, so even there is the production clearance between glue body 16 and waterproof portion 111, still can make steam get into the route between glue body 16 and the waterproof portion 111 longer to can play better water-proof effects. In addition, in other embodiments, a plurality of pins 12 may be packaged by one waterproof portion 111.
In one embodiment, the circumferential dimension of flashing 111 tapers in the direction of protective segment 122 toward exposed segment 123. I.e. the distance between the outer surface of flashing 111 and the outer surface of protecting section 122 decreases gradually in the direction in which protecting section 122 points towards exposed section 123. The distance between two adjacent flashing portions 111 gradually increases in the direction from the protective section 122 to the exposed section 123, and this arrangement ensures that there is a sufficient distance between two adjacent flashing portions 111 even when the distance between two adjacent pins 12 is small. Therefore, under the condition that the stator assembly 10 is compact in structure at the plurality of inserting pins 12, a good waterproof effect can be ensured, and the demolding of the waterproof part 111 can be facilitated.
In addition, in the embodiment of disposing the sealing compound 16, since the distance between two adjacent waterproof portions 111 gradually increases in the direction in which the protection section 122 points to the exposed section 123, it can be ensured that the sealing compound 16 is better filled between two adjacent waterproof portions 111, and the possibility of generating a gap between two adjacent waterproof portions 111 due to insufficient filling of the sealing compound 16 is reduced, so that the waterproof performance can be further improved. In addition, in other embodiments, waterproof portion 111 may be arranged in a cylindrical or prism shape.
Further, in an embodiment, the waterproof portion 111 has a conical shape or a pyramid shape. Here, the conical shape or the pyramid shape should be broadly understood, and the waterproof portion 111 is not limited to the case where the end portion away from the stator assembly 10 of the waterproof portion 111 is only pointed, and includes the case where the waterproof portion 111 is a circular truncated cone or a truncated pyramid. So make waterproof portion 111's simple structure, the shaping of being convenient for also is favorable to simplifying the mould structure, reduction in production cost. In addition, the cavity for forming the waterproof portion 111 on the mold is made to be in an inverted cone shape, so that the exposed section 123 can be conveniently inserted into the mold. When the waterproof portion 111 is pyramid-shaped, the waterproof portion 111 may be triangular pyramid, rectangular pyramid, pentagonal pyramid, hexagonal pyramid, or the like. Of course, in other embodiments, waterproof portion 111 may also be hemispherical, etc.
In one embodiment, waterproof portion 111 wraps around the perimeter wall of protective segment 122. That is, when integrally forming the stator housing 114 and the waterproof portion 111, the waterproof portion 111 may be integrally formed on the peripheral wall of the protective section 122, so that the sealing performance between the waterproof portion 111 and the protective section 122 can be improved, and the possibility that water vapor enters the coil assembly 115 from between the waterproof portion 111 and the protective section 122 and between the electronic housing and the contact pin 12 is reduced. When waterproof portion 111 is molded through a mold, a core pulling structure can be prevented from being arranged between waterproof portion 111 and protective section 122, so that the mold structure can be simplified, and production cost can be reduced. Of course, in other embodiments, waterproofing portion 111 may be spaced from protective section 122, that is, waterproofing portion 111 is spaced at the periphery of protective section 122. At this time, the sealant 16 may be filled between the waterproof portion 111 and the protection section 122, so as to further increase the path of water vapor penetrating to the surface of the protection section 122. In addition, in other embodiments, the waterproof portion 111 may be provided around the outer circumference of the plurality of pins 12.
In one embodiment, the stator body 11 is provided with a wire connecting portion 113 protruding outward, the protruding section 121 protrudes from the wire connecting portion 113, and the protective cover 15 is connected to the wire connecting portion 113. So set up, wiring portion 113 can provide the mounted position for protection casing 15, and can fix a position for the installation of protection casing 15 to be convenient for install protection casing 15 on stator main part 11. In one embodiment, the wire connection portion 113 is provided protruding from the outer surface of the stator housing 114. In addition, in other embodiments, the wire connecting portion 113 may not be provided.
In an embodiment, coil pack 115 includes the coil skeleton and locates the coil on the coil skeleton, the protruding fixed part that supplies contact pin 12 to fix that is equipped with of coil skeleton side direction, contact pin 12 is connected with the coil electricity, wiring portion 113 corresponds the fixed part setting, and wiring portion 113 wraps up in the fixed part, so make wiring portion 113 enough provide the mounted position for protection casing 15, also can wrap up the fixed part, avoid the fixed part to show outside, avoided additionally setting up the protruding structure that is used for wrapping up the fixed part, be favorable to simplifying the structure of stator main part 11.
In an embodiment, the stator assembly 10 further includes a circuit board 13, the circuit board 13 is connected to the pins 12, at least one supporting portion 112 is protruded from a surface of the stator body 11, from which the protruding portion 121 protrudes, and the supporting portion 112 abuts against a surface of the circuit board 13 facing the stator body 11. Specifically, when assembling the stator assembly 10, the circuit board 13 needs to be soldered to the exposed section 123 of the pin 12 to ensure that the circuit board 13 is reliably connected to the pin 12. Through setting up supporting part 112, when welding circuit board 13 with the exposed section 123 of contact pin 12, supporting part 112 can provide the support for circuit board 13, can guarantee on the one hand that circuit board 13 is comparatively stable in welding process, promotes welding quality. On the other hand, the circuit board 13 is spaced from the surface of the stator body 11 (the wiring portion 113), so that the heat generated when the circuit board 13 and the contact pin 12 are welded is reduced from being conducted to the stator body 11, and the stator body 11 can be effectively prevented from being deformed by heat. And can also guarantee that the welding liquid can smoothly flow to one side of the circuit board 13 towards the stator main body 11, and improve the welding quality. Wherein the support portion 112 may be provided with one, two, three or more, and so on. Of course, in other embodiments, the support portion 112 may not be provided.
In an embodiment, in a direction in which the protection section 122 points to the exposed section 123, an end of the supporting portion 112 away from the stator main body 11 is flush with or protrudes from an end of the waterproof portion 111 away from the stator main body 11. That is, when the exposed section 123 of the pin 12 is passed through the via hole of the circuit board 13 and the circuit board 13 is placed at the end of the support portion 112 away from the stator body 11, the surface of the circuit board 13 facing the stator body 11 is just in contact with or spaced from the waterproof portion 111. Therefore, heat generated when the circuit board 13 and the pin 12 are soldered can be reduced from being conducted to the waterproof portion 111, and the waterproof portion 111 can be reduced from being deformed by heat. In an embodiment, one end of the support portion 112, which is far away from the stator body 11, protrudes out of one end of the waterproof portion 111, which is far away from the stator body 11, so that the circuit board 13 is spaced from the waterproof portion 111, thereby avoiding the soldering liquid from contacting the waterproof portion 111, better reducing the heat generated when the circuit board 13 and the contact pin 12 are soldered to the waterproof portion 111, and avoiding the waterproof portion 111 from blocking the via hole for the contact pin 12 to pass through on the circuit board 13, thereby ensuring that the soldering liquid can be better filled in the via hole on the circuit board 13, and improving the soldering quality.
The invention further provides an electronic expansion valve, which comprises a valve body assembly and a stator assembly 10 for the electronic expansion valve, the specific structure of the stator assembly 10 for the electronic expansion valve refers to the above embodiments, and the electronic expansion valve adopts all technical solutions of all the above embodiments, so that the electronic expansion valve at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. Wherein the valve body assembly is connected with the stator assembly 10.
The present invention further provides a refrigeration device, which includes a compressor and an electronic expansion valve, and the specific structure of the electronic expansion valve refers to the above embodiments, and since the refrigeration device adopts all the technical solutions of all the above embodiments, the refrigeration device at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. Wherein, the electronic expansion valve is connected with the compressor. The refrigeration equipment may be an air conditioner or a refrigerator, etc.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. A stator assembly for an electronic expansion valve, comprising:
a stator body; and the number of the first and second groups,
a plurality of contact pins, it is a plurality of the one end of contact pin is located in the stator main part, the other end certainly the stator main part stretches out, and is a plurality of the contact pin has stretches out the outer section of stretching out of stator main part, stretch out the section from with the one end that stator main part is close to is to keeping away from the one end branch of stator main part is established to protection section and naked section, and is a plurality of the periphery of the protection section of contact pin be provided with stator main part sealing connection's waterproof portion.
2. The stator assembly for an electronic expansion valve of claim 1, wherein said stator body comprises:
a stator housing; and
the coil assembly is accommodated in the stator shell, the plurality of contact pins are arranged at one end in the stator main body and electrically connected with the coil assembly, the extending section extends out of the stator shell, and the waterproof part and the stator shell are integrally molded through injection.
3. The stator assembly for an electronic expansion valve according to claim 2, wherein said stator housing, said waterproof portion and said insertion pin are integrally injection-molded.
4. The stator assembly for an electronic expansion valve according to claim 2, wherein the protective section of each of the contact pins is provided with the waterproof portions, and any two adjacent waterproof portions are spaced apart.
5. The stator assembly for an electronic expansion valve according to claim 4, wherein a circumferential dimension of the water shield is tapered in a direction in which the protective segment is directed toward the exposed segment.
6. The stator assembly for an electronic expansion valve according to claim 5, wherein the waterproof portion has a conical or pyramidal shape.
7. The stator assembly for an electronic expansion valve according to claim 1, wherein the waterproof portion is wrapped around a circumferential wall of the protective segment.
8. The stator assembly for an electronic expansion valve according to any of claims 1 to 7, further comprising a circuit board connected to the pins, wherein at least one support portion is protruded from a surface of the stator body from which the protruding section protrudes, and the support portion abuts against a surface of the circuit board facing the stator body.
9. The stator assembly for an electronic expansion valve according to claim 8, wherein an end of the supporting portion remote from the stator main body is flush with or protrudes from an end of the waterproof portion remote from the stator main body in a direction in which the protective section points toward the exposed section.
10. The stator assembly for an electronic expansion valve according to any one of claims 1 to 7, further comprising a protective cover provided on the protruding section and the waterproof portion, wherein a sealant is filled between the protective cover and an outer surface of the stator main body.
11. A stator assembly for an electronic expansion valve according to claim 10, wherein said stator body has a terminal portion protruded therefrom, said protruding section protrudes from said terminal portion, and said shield is connected to said terminal portion.
12. An electronic expansion valve comprising a valve body assembly and a stator assembly for an electronic expansion valve according to any of claims 1 to 11, the valve body assembly being connected to the stator assembly.
13. A refrigeration appliance comprising an electronic expansion valve according to claim 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483466.3A CN114629283A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
| CN202310667407.9A CN116722690A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011483466.3A CN114629283A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310667407.9A Division CN116722690A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114629283A true CN114629283A (en) | 2022-06-14 |
Family
ID=81896727
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310667407.9A Pending CN116722690A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
| CN202011483466.3A Pending CN114629283A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310667407.9A Pending CN116722690A (en) | 2020-12-14 | 2020-12-14 | Stator assembly for electronic expansion valve, electronic expansion valve and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN116722690A (en) |
-
2020
- 2020-12-14 CN CN202310667407.9A patent/CN116722690A/en active Pending
- 2020-12-14 CN CN202011483466.3A patent/CN114629283A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN116722690A (en) | 2023-09-08 |
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