CN102537479A - Coil device, production method thereof and electronic expansion valve with same - Google Patents
Coil device, production method thereof and electronic expansion valve with same Download PDFInfo
- Publication number
- CN102537479A CN102537479A CN2010106152921A CN201010615292A CN102537479A CN 102537479 A CN102537479 A CN 102537479A CN 2010106152921 A CN2010106152921 A CN 2010106152921A CN 201010615292 A CN201010615292 A CN 201010615292A CN 102537479 A CN102537479 A CN 102537479A
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- coil device
- sealing
- tenminal block
- expansion valve
- wire
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- 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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- Magnetically Actuated Valves (AREA)
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Abstract
The invention discloses a coil device for an electronic expansion valve. The coil device comprises a terminal part (1), wherein a terminal (3) is led out of the terminal part (1) and is connected with a lead (2) of the electronic expansion valve, the terminal part (1) is coated with a sealing part (4) for sealing a joint between the terminal (3) and the lead (2), and the sealing part (4) is a thermo-melting material injection molding. According to the structural design of the coil device, on one hand, the production efficiency can be improved and the production cost can be reduced; on the other hand, environment pollution can be avoided and the insulating performance of the lead can be ensured. In addition, the invention also discloses an electronic expansion valve with the coil device and a production method of the coil device.
Description
Technical field
The present invention relates to the electronic expansion valve technology field, particularly a kind of coil device.In addition, the invention still further relates to a kind of electric expansion valve that comprises this coil device.Moreover, the invention still further relates to a kind of production method of this coil device.
Background technique
In the cooling and heating technical field, electric expansion valve is the cold medium flux controlling component of heating-cooling equipment, and its working procedure is generally: along with the energising or the outage of coil device, needle is regulated the aperture of valve port, thereby regulates the flow of refrigerant.
Please refer to Fig. 1, Fig. 1 is for being used for the manufacturing flow chart of the coil device of electric expansion valve in the existing technology.
As shown in Figure 1, in first width of cloth figure of coil device manufacturing process, coil device comprise tenminal block portion 1 ', tenminal block portion 1 ' lead to tenminal block 3 ', this tenminal block 3 ' with lead-in wire 2 ' be connected; Particularly, as shown in Figure 1, tenminal block 3 ' with the lead-in wire 2 ' be connected through circuit board 5 ' realization.In the second and the 3rd width of cloth figure of manufacturing process, tenminal block portion 1 ' the outside be provided with case 6 ', and this case 6 ' be welded in tenminal block portion 1 ' on.In the 4th width of cloth figure of manufacturing process, to case 6 ' cavity in pour into epoxy resin 4 ', after normal temperature 24 hours solidifies, the line terminals that achieves a butt joint portion 1 ' sealing.
Above-mentioned coil device of the prior art has following shortcoming:
The first, need after epoxy resin 4 ' embedding to solidify 24 hours, the time is longer, causes manufacturing efficiency low;
The second, the smell of influential environment discharges during curing reaction;
The 3rd, epoxy resin 4 ' embedding need carrier case 6 ', cause cost of production higher;
The 4th, these aeration outward appearance and insulating property bubble appears, in epoxy resin 4 ' curing back lead-in wire 2 ' can receive resin stain;
The 5th, epoxy resin 4 ' curing back hardness is harder, causes going between 2 ' with epoxy resin 4 ' binding site hidden danger such as stress cracking are arranged, thereby influences insulating property.
In view of this, how coil device of the prior art being improved, thereby enhance productivity, reduce production costs, and avoid befouling environment and the insulating property that guarantee lead-in wire simultaneously, is the problem that those skilled in the art need solution badly.
Summary of the invention
The object of the invention aims to provide a kind of coil device, and the structural design of this device can help enhancing productivity and reducing production costs on the one hand, can avoid befouling environment and the insulating property that guarantee lead-in wire on the other hand.In addition, further objective of the present invention is a kind of electric expansion valve that comprises this coil device is provided.Moreover further object of the present invention is the production method that a kind of this coil device is provided.
For solving the problems of the technologies described above; The present invention provides a kind of coil device; Be used for electric expansion valve; Comprise tenminal block portion, said tenminal block portion leads to the tenminal block that is connected with the lead-in wire of said electric expansion valve, and the external packets of said tenminal block portion is wrapped with the Sealing of the joint between said tenminal block of sealing and the said lead-in wire; Said Sealing is the hot melt material moulding.
Preferably, said Sealing is the PUR moulding.
Preferably, said Sealing be shaped as cuboid, the exterior edge face of said Sealing is parallel to the axis of said coil device.
Preferably, said Sealing be shaped as trapezoid body, the angle between the exterior edge face of said Sealing and the axis of said coil device is an acute angle, and Open Side Down at the angle of this acute angle.
Preferably, said Sealing comprises first Sealing that seals said lead-in wire and second Sealing that seals said joint, and the said second Sealing said coil device in edge thickness radially is greater than the said first Sealing said coil device in edge thickness radially.
In addition, for solving the problems of the technologies described above, the present invention also provides a kind of electric expansion valve, comprises valve body; Also above-mentioned each the described coil device of said electric expansion valve, and said coil device is set in the outside of said valve body.
Moreover for solving the problems of the technologies described above, the present invention also provides a kind of production method of coil device, and the Sealing of the outer wrap of the tenminal block portion of said coil device forms through the hot melt material injection moulding.
Preferably, said hot melt material is a PUR.
Preferably, said coil device integral body is inserted the hot-melting and injection-molding of accomplishing said Sealing in the plastic mould of PUR injection machine.
At last, on the basis of above-mentioned existing technology, the present invention also provides a kind of coil device, is used for electric expansion valve, comprises tenminal block portion, and said tenminal block portion is provided with downward opening wire connection cavity; Said coil device also comprises tenminal block; Said tenminal block is stretched in the said wire connection cavity by the diapire of said wire connection cavity, and is connected with the plug of the electric expansion valve lead-in wire that stretches into said wire connection cavity, and said plug is sealed in the said wire connection cavity through Sealing; Said Sealing is the hot melt material moulding.
Preferably, said Sealing is the PUR moulding.
On the basis of existing technology, the Sealing of coil device provided by the present invention is the hot melt material moulding, that is the sealing part forms through the hot melt material injection moulding under the low-temp low-pressure condition, and this concrete hot melt material can be PUR.Coil device of the present invention has following technique effect:
The first, because hot melt material low-temp low-pressure injection moulding process only needs 20 seconds, the time is very short, thereby has significantly improved manufacturing efficiency;
The second, hot melt material can refine in vegetable fat, does not have the smell of befouling environment to discharge natural environmental-protective in the injection moulding process;
The 3rd, in the injection moulding process, directly injection moulding in tenminal block portion need not case, thereby has reduced cost of production, simultaneously can be so that overall volume reduces 30%-50%;
The 4th, softness is flexible after the molding and forming of low-temp low-pressure hot melt material, and is low with wire bond point stress, thereby can not influence the insulating property of lead-in wire.
In sum, the structural design of coil device provided by the present invention can help enhancing productivity and reducing production costs on the one hand, can avoid befouling environment and the insulating property that guarantee lead-in wire on the other hand.
In addition, the technique effect of electric expansion valve provided by the present invention and the technique effect of above-mentioned coil device are basic identical, repeat no more at this.
Moreover the technique effect of the production method of this coil device provided by the present invention and the technique effect of above-mentioned coil device are basic identical, repeat no more at this.
Description of drawings
Fig. 1 is for being used for the manufacturing flow chart of the coil device of electric expansion valve in the existing technology;
Fig. 2 is the structural representation of coil device provided by the present invention before injection moulding;
Fig. 3 is the structural representation of the coil device after the injection moulding among first kind of embodiment of the present invention;
Fig. 4 is the plan view of coil device among Fig. 3;
Fig. 5 is the structural representation of the coil device after the injection moulding among second kind of embodiment of the present invention;
Fig. 6 is the plan view of coil device among Fig. 5;
Fig. 7 is the structural representation of the coil device after the injection moulding among the third embodiment of the present invention;
Fig. 8 is the plan view of coil device among Fig. 7;
Fig. 9 is the structural representation of another kind of coil device provided by the present invention.
Wherein, the corresponding relation between reference character and the component names is among Fig. 1:
1 ' tenminal block portion; 2 ' lead-in wire; 3 ' tenminal block; 4 ' epoxy resin; 5 ' circuit board; 6 ' case;
Corresponding relation among Fig. 2 to Fig. 9 between reference character and the component names is:
1 tenminal block portion; 11 wire connection cavities; 2 lead-in wires; 21 plugs; 3 tenminal blocks; 31 horizontal tenminal blocks; 32 vertical tenminal blocks; 4 Sealings; 41 exterior edge faces; 42 first Sealings; 43 second Sealings; 5 circuit boards.
Embodiment
Core of the present invention is for providing a kind of coil device, and the structural design of this device can help enhancing productivity and reducing production costs on the one hand, can avoid befouling environment and the insulating property that guarantee lead-in wire on the other hand.In addition, another core of the present invention is that a kind of electric expansion valve that comprises this coil device is provided.Moreover another core of the present invention is the production method that a kind of this coil device is provided.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
At first need to prove, among this paper the nouns of locality such as " upper and lower, a left side and right " all be with position shown in the accompanying drawing as reference, thereby can not be as restriction to protection domain of the present invention.
Please refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the structural representation of coil device provided by the present invention before injection moulding; Fig. 3 is the structural representation of the coil device after the injection moulding among first kind of embodiment of the present invention; Fig. 4 is the plan view of coil device among Fig. 3.
In the basic technology scheme, coil device provided by the present invention is used for electric expansion valve, comprises tenminal block portion 1, and tenminal block portion 1 leads to tenminal block 3, and this tenminal block 3 is connected with the lead-in wire 2 of electric expansion valve; Particularly, as shown in Figure 2, tenminal block 3 is realized being connected through circuit board 5 with lead-in wire 2.Like Fig. 3 and shown in Figure 4, the external packets of tenminal block portion 1 is wrapped with Sealing 4, and sealing part 4 is used for the joint between sealed wiring terminal 3 and the lead-in wire 2.
On the basis of above-mentioned existing technology, Sealing 4 further is the hot melt material moulding, that is sealing part 4 forms through the hot melt material injection moulding under the low-temp low-pressure condition, and this concrete hot melt material can be PUR.Coil device of the present invention has following technique effect:
The first, because hot melt material low-temp low-pressure injection moulding process only needs 20 seconds, the time is very short, thereby has significantly improved manufacturing efficiency;
The second, hot melt material can refine in vegetable fat, does not have the smell of befouling environment to discharge natural environmental-protective in the injection moulding process;
The 3rd, in the injection moulding process, directly injection moulding in tenminal block portion 1 need not case, thereby has reduced cost of production, simultaneously can be so that overall volume reduces 30%-50%;
The 4th, softness is flexible after the molding and forming of low-temp low-pressure hot melt material, and is low with wire bond point stress, thereby can not influence the insulating property of lead-in wire.
In sum, the structural design of coil device provided by the present invention can help enhancing productivity and reducing production costs on the one hand, can avoid befouling environment and the insulating property that guarantee lead-in wire 2 on the other hand.
Need to prove that in above-mentioned basic technology scheme, said hot melt material is not limited in PUR, other the hot melt material with above-mentioned technique effect is obviously also within protection scope of the present invention.
Further improvement can be made in basis in above-mentioned basic technology scheme, thereby obtains first kind of embodiment of coil device of the present invention.
In first kind of embodiment of coil device, like Fig. 3 and shown in Figure 4, Sealing 4 be shaped as cuboid, the exterior edge face 41 of Sealing 4 is parallel to the axis of said coil device.The Sealing 4 of this rectangular shape can closely wrap up tenminal block portion 1, thereby guarantees the insulating property of tenminal block portion 1, and outward appearance is more proper simultaneously.
Please refer to Fig. 5 and Fig. 6, Fig. 5 is the structural representation of the coil device after the injection moulding among second kind of embodiment of the present invention; Fig. 6 is the plan view of coil device among Fig. 5.
In second kind of embodiment of coil device, like Fig. 5 and shown in Figure 6, Sealing 4 be shaped as trapezoid body, the angle between the exterior edge face 41 of Sealing 4 and the axis of said coil device is an acute angle, and Open Side Down at the angle of this acute angle.The Sealing 4 of this kind structural design can reduce the consumption of PUR, thereby can reduce cost of material on the basis of the insulating property that guarantee tenminal block portion 1.
Please refer to Fig. 7 and Fig. 8, Fig. 7 is the structural representation of the coil device after the injection moulding among the third embodiment of the present invention; Fig. 8 is the plan view of coil device among Fig. 7.
In the third embodiment of coil device; Sealing 4 comprises first Sealing 42 and second Sealing 43; As shown in Figure 8, this first Sealing 42 is greater than parcel lead-in wire 2, and these second Sealing, 43 major parts are used for the joint between sealed wiring terminal 3 and the lead-in wire 2; And second Sealing, the 43 said coil devices in edge thickness radially is greater than first Sealing, the 42 said coil devices in edge thickness radially, that is the shape of Sealing 4 is similar to a species stage cuboid.
The coil device of this kind structural design can guarantee the insulating property of tenminal block portion 1, can reduce the consumption and the winding volume of PUR again, thereby helps reducing cost of material and the miniaturization of coil device volume.
In addition, the present invention also provides a kind of electric expansion valve, comprises valve body, the needle that is provided with valve port in this valve body and cooperates with valve port; Said electric expansion valve also comprises the coil device among above-mentioned any embodiment; This coil device is set in the outside of valve body, thereby under the effect in the magnetic field of coil device, needle moves up and down; Regulate the aperture of valve port, and then realize regulating the purpose of cold medium flux.Other parts of said electric expansion valve can be with reference to existing technology, and this paper no longer launches.
Moreover; The present invention also provides the production method of coil device among a kind of above-mentioned any embodiment; In this production method, the Sealing 4 of the outer wrap of the tenminal block portion 1 of said coil device forms through the hot melt material injection moulding, and this hot melt material specifically can be PUR.
Particularly; In above-mentioned production method; Said coil device integral body is inserted the hot-melting and injection-molding of accomplishing Sealing 4 in the plastic mould of PUR injection machine, elementary process is: at first, the coil device that is welded with lead-in wire 2 is packed in the plastic mould in the low-pressure hot-melting glue injection machine; Secondly, press the start button of low-pressure hot-melting glue injection machine, this injection machine carries out matched moulds, injection moulding, pressurize, cooling, die sinking automatically and a series of actions such as ejects; Injection moulding is accomplished the back and is taken out coil device, checks whether the injection moulding position is full, smooth densification etc.
In addition, the present invention also provides a kind of coil device, specifically please refer to Fig. 9, and Fig. 9 is the structural representation of another kind of coil device provided by the present invention.
As shown in Figure 9, coil device provided by the present invention is used for electric expansion valve, comprises tenminal block portion 1, and tenminal block portion 1 is provided with downward opening wire connection cavity 11; Said coil device also comprises horizontal tenminal block 31 and the vertical tenminal block 32 that is connected with horizontal tenminal block 31; Vertically tenminal block 32 is stretched in the wire connection cavity 11 by the diapire of wire connection cavity 11, and is connected with the plug 21 of the electric expansion valve lead-in wire 2 that stretches into wire connection cavity 11, and plug 21 is sealed in the wire connection cavity through Sealing 4; On this basis, Sealing 4 is the hot melt material moulding, and particularly, Sealing 4 can be the PUR moulding.
In the present embodiment, tenminal block is divided into horizontal tenminal block 31 and vertical tenminal block 32, and promptly both are split type connection, and obviously, both also can be made of one, and can realize the present invention equally.
The technique effect of this kind coil device is identical with the technique effect of coil device mentioned above, repeats no more at this.
More than to coil device provided by the present invention and production method thereof with comprise that the electric expansion valve of this coil device has carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (11)
1. coil device; Be used for electric expansion valve; Comprise tenminal block portion (1); Said tenminal block portion (1) leads to the tenminal block (3) that is connected with the lead-in wire (2) of said electric expansion valve, and the external packets of said tenminal block portion (1) is wrapped with the Sealing (4) of the joint between sealing said tenminal block (3) and the said lead-in wire (2); It is characterized in that said Sealing (4) is the hot melt material moulding.
2. coil device as claimed in claim 1 is characterized in that, said Sealing (4) is the PUR moulding.
3. coil device as claimed in claim 2 is characterized in that, said Sealing (4) be shaped as cuboid, the exterior edge face (41) of said Sealing (4) is parallel to the axis of said coil device.
4. coil device as claimed in claim 2 is characterized in that, said Sealing (4) be shaped as trapezoid body, the angle between the exterior edge face (41) of said Sealing (4) and the axis of said coil device is an acute angle, and Open Side Down at the angle of this acute angle.
5. coil device as claimed in claim 2; It is characterized in that; Said Sealing (4) comprises first Sealing (42) of the said lead-in wire of sealing (2) and seals second Sealing (43) of said joint, and said second Sealing (43) the said coil device in edge thickness radially is greater than said first Sealing (42) the said coil device in edge thickness radially.
6. an electric expansion valve comprises valve body; It is characterized in that said electric expansion valve also comprises like each described coil device of claim 1 to 5, and said coil device is set in the outside of said valve body.
7. the production method of a coil device is characterized in that, the Sealing (4) of the outer wrap of the tenminal block portion (1) of said coil device forms through the hot melt material injection moulding.
8. the production method of coil device as claimed in claim 7 is characterized in that, said hot melt material is a PUR.
9. the production method of coil device as claimed in claim 8 is characterized in that, said coil device integral body is inserted the hot-melting and injection-molding of accomplishing said Sealing (4) in the plastic mould of PUR injection machine.
10. a coil device is used for electric expansion valve, comprises tenminal block portion (1), and said tenminal block portion (1) is provided with downward opening wire connection cavity (11); Said coil device also comprises tenminal block; Said tenminal block is stretched in the said wire connection cavity (11) by the diapire of said wire connection cavity (11); And be connected with the plug (21) of the electric expansion valve lead-in wire (2) that stretches into said wire connection cavity (11), said plug (21) is sealed in the said wire connection cavity (11) through Sealing (4); It is characterized in that said Sealing (4) is the hot melt material moulding.
11. coil device as claimed in claim 10 is characterized in that, said Sealing (4) is the PUR moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106152921A CN102537479A (en) | 2010-12-30 | 2010-12-30 | Coil device, production method thereof and electronic expansion valve with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106152921A CN102537479A (en) | 2010-12-30 | 2010-12-30 | Coil device, production method thereof and electronic expansion valve with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102537479A true CN102537479A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106152921A Pending CN102537479A (en) | 2010-12-30 | 2010-12-30 | Coil device, production method thereof and electronic expansion valve with same |
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| CN (1) | CN102537479A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514911A (en) * | 2013-09-30 | 2015-04-15 | 浙江三花股份有限公司 | Electronic expansion valve and coil device thereof |
| CN105742002A (en) * | 2014-12-25 | 2016-07-06 | 株式会社不二工机 | Coil device and electrically actuated valve provided with same |
| WO2020024877A1 (en) * | 2018-07-28 | 2020-02-06 | 浙江盾安禾田金属有限公司 | Air conditioning system, and electronic expansion valve and electromagnetic coil structure of electronic expansion valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514911A (en) * | 2013-09-30 | 2015-04-15 | 浙江三花股份有限公司 | Electronic expansion valve and coil device thereof |
| CN104514911B (en) * | 2013-09-30 | 2017-05-03 | 浙江三花智能控制股份有限公司 | Electronic expansion valve and coil device thereof |
| CN105742002A (en) * | 2014-12-25 | 2016-07-06 | 株式会社不二工机 | Coil device and electrically actuated valve provided with same |
| WO2020024877A1 (en) * | 2018-07-28 | 2020-02-06 | 浙江盾安禾田金属有限公司 | Air conditioning system, and electronic expansion valve and electromagnetic coil structure of electronic expansion valve |
| KR20200002634U (en) * | 2018-07-28 | 2020-12-04 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Air conditioning system, electronic expansion valve and electromagnetic coil structure |
| KR200495689Y1 (en) * | 2018-07-28 | 2022-07-25 | 제지앙 둔안 아트피셜 인바이런먼트 컴퍼니 리미티드 | Air conditioning system, electronic expansion valve and electromagnetic coil structure |
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Application publication date: 20120704 |