CN219954408U - Self-priming electromagnetic valve for flameout protection device of kitchen range - Google Patents
Self-priming electromagnetic valve for flameout protection device of kitchen range Download PDFInfo
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- CN219954408U CN219954408U CN202321663027.XU CN202321663027U CN219954408U CN 219954408 U CN219954408 U CN 219954408U CN 202321663027 U CN202321663027 U CN 202321663027U CN 219954408 U CN219954408 U CN 219954408U
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- kitchen range
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- 238000007789 sealing Methods 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000010411 cooking Methods 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
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- 238000007689 inspection Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000012634 fragment Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a self-suction electromagnetic valve used on a flameout protection device of a kitchen range, which comprises a shell, an electromagnetic shaft, an electromagnetic seat and a sealing gasket; a framework with a hollow structure is arranged in the shell, and a coil is wound on the framework; the lower part of the electromagnetic shaft extends into the framework; the upper end of the electromagnetic shaft is connected with the sealing gasket, and a spring sleeved on the electromagnetic shaft is arranged between the sealing gasket and the upper end of the shell; the electromagnetic shaft can move up and down; the electromagnetic seat is connected to the lower end of the shell, and the upper part of the electromagnetic seat extends into the framework; two guide holes are also arranged on the electromagnetic seat; the ground wire pin and the main wire pin of the coil are respectively led out from the two leading holes; the electromagnetic seat is connected with a copper plug which presses the ground wire pin of the coil. The electromagnetic valve can realize automatic suction without manual auxiliary suction, can realize intelligent control, and has excellent stability and reliability.
Description
Technical Field
The utility model relates to the technical field of electromagnetic valves, in particular to a self-priming electromagnetic valve used on a flameout protection device of a kitchen range.
Background
The electromagnetic valve in the flameout protection device of the gas cooker can play a role in timely cutting off the air source after the unexpected flameout of the cooker. The existing electromagnetic valve is mainly assembled by an electromagnet, an electromagnetic sheet, a coil, a spring, a sealing gasket, a base and the like. The attraction action of the existing electromagnetic valve mainly adopts a double-pass electric coil to generate a magnetic field so that the electromagnet and the electromagnetic sheet are attracted; because of the limitations of the structure, the coil and the like, the attraction process of the existing electromagnetic valve needs to overcome the spring force attraction, the distance (air gap) between the electromagnet and the electromagnetic sheet is small enough, and the attraction is realized by macroscopic contact of the electromagnet and the electromagnetic sheet, so that the electromagnetic sheet needs to be pushed to contact with the electromagnet by external force when the electromagnetic valve is started. When the device is particularly applied to a gas cooker, a user needs to press a valve rod (knob) by hand to finish the functions of ignition and the like. Because external force is needed to assist in opening the valve, the problem of loosening the hands and flameout often occurs on the kitchen range. In addition, the attraction reliability of the existing electromagnetic valve is highly dependent on the surface conditions of the electromagnet and the electromagnetic sheet, and once a small amount of fragments, dirt and scratches appear on the attraction surface, the electromagnetic valve is easy to cause functional failure, and the production and inspection cost is increased.
In addition, the coil ground wire in the existing electromagnetic valve is mostly welded with the lower base, and the defects of cold joint/wire breakage/gas corrosion resistance and the like easily occur in the welding process, so that the stability and reliability of the electromagnetic valve are reduced.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a self-priming electromagnetic valve for a flameout protection device of a kitchen range. The electromagnetic valve can realize automatic suction without manual auxiliary suction, can realize intelligent control, and has excellent stability and reliability.
In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:
a self-priming electromagnetic valve used on a flameout protection device of a kitchen range comprises a shell, an electromagnetic shaft, an electromagnetic seat and a sealing gasket; a framework with a hollow structure is arranged in the shell, and a coil is wound on the framework; the lower part of the electromagnetic shaft extends into the framework; the upper end of the electromagnetic shaft is connected with the sealing gasket, and a spring sleeved on the electromagnetic shaft is arranged between the sealing gasket and the upper end of the shell; the electromagnetic shaft can move up and down; the electromagnetic seat is connected to the lower end of the shell, and the upper part of the electromagnetic seat extends into the framework; two guide holes are also arranged on the electromagnetic seat; the ground wire pin and the main wire pin of the coil are respectively led out from the two leading holes; the electromagnetic seat is connected with a copper plug, and the copper plug presses the ground wire pin of the coil.
As a further improvement of the technical scheme of the utility model, the spring is of a conical structure.
As a further improvement of the technical scheme, a gasket sleeved on the electromagnetic shaft is further arranged between the sealing gasket and the spring, the gasket is provided with a concave part and an upper flange, and the upper flange supports the sealing gasket; the concave part is matched with the spring.
As a further improvement of the above technical solution of the present utility model, the lower end of the electromagnetic shaft has a small diameter step.
As a further improvement of the technical scheme of the utility model, the end face of the small-diameter step of the electromagnetic shaft is provided with a pit.
As a further improvement of the technical scheme, the framework is of an I-shaped structure.
As a further improvement of the above technical solution of the present utility model, the lower part of the electromagnetic seat is connected with a connection needle, and the main wire pin of the coil passes through the inside of the connection needle and is welded with the lower end of the connection needle.
As a further improvement of the technical scheme, the connecting needle is connected with the kitchen range circuit board.
As a further improvement of the above technical solution of the present utility model, the upper portion of the housing is a flared necking structure to cooperate with the spring.
As a further improvement of the technical scheme of the utility model, the sealing surface of the sealing gasket is of a complete plane structure.
The beneficial effects of the utility model are as follows:
the coil in the electromagnetic valve is wound on the framework, and the lower part of the electromagnetic shaft and the upper part of the electromagnetic seat extend into the framework, so that a magnetic field is generated after the coil is electrified, and the lower end face of the electromagnetic shaft and the upper end face of the electromagnetic seat can be attracted in the framework, namely, the coil. The structure of the utility model can lead the sucking process to be carried out in the coil, and the magnetic field intensity generated in the coil is larger, thereby forming stronger magnetic force, overcoming the spring force, realizing the automatic sucking of the electromagnetic valve, and not needing manual auxiliary sucking, thereby not having the problem of the occasional flameout of the kitchen range caused by loosening hands; after the electromagnetic valve is applied to a kitchen range, the electromagnetic valve is matched with a kitchen range circuit design, and intelligent operations such as touch screen control, remote control and timing control can be realized.
The suction of the electromagnetic valve does not need to highly depend on the suction surface condition, thereby improving the functional reliability of the electromagnetic valve and reducing the production and inspection cost.
The skeleton in the electromagnetic valve is wound with the single coil, and the current change of the single coil can be controlled by an external control circuit so as to adopt large current when the electromagnetic valve is started in a sucking way, and small current is adopted in the process of maintaining the sucking way, so that compared with the electromagnetic valve adopting double coils, the electromagnetic valve has the advantage that the cost is reduced.
The ground wire pin of the coil in the electromagnetic valve is pressed on the electromagnetic seat by adopting the copper plug, so that the defects of cold joint/wire breakage/gas corrosion resistance and the like of a welding process adopted in the prior art can be effectively avoided, and the stability and the reliability of the electromagnetic valve are greatly improved.
Drawings
Fig. 1 is a schematic structural view of a self-priming electromagnetic valve for a stove flameout protection device of the present utility model.
Fig. 2 is a schematic structural view of an electromagnetic seat in the self-priming electromagnetic valve of the present utility model.
In the figure, 1: a housing; 2: electromagnetic shaft, 21: small diameter step, 22: pit; 3: electromagnetic seat, 31: hole guiding, 32: groove structure, 33: blind hole, 34: a flanging step structure; 4: a sealing gasket; 5: a skeleton; 6: coil, 61: ground pin, 62: a main line pin; 7: a spring; 8: gasket, 81: concave part, 82: an upper flange; 9: a copper plug; 10: connecting needle, 101: o-ring, 102: an insulating spacer.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front", "rear", "left", "right", "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
A preferred embodiment of a self-priming solenoid valve for a cooktop flameout protection device is shown in figures 1 and 2; the electromagnetic valve comprises a shell 1, an electromagnetic shaft 2, an electromagnetic seat 3 and a sealing gasket 4; a framework 5 with a hollow structure is arranged in the shell 1, and the framework 5 is of an I-shaped structure; a coil 6 is wound on the periphery of the framework 5; the lower part of the electromagnetic shaft 2 extends into the framework 5; the upper end of the electromagnetic shaft 2 is connected with a sealing gasket 4, and a spring 7 sleeved on the electromagnetic shaft 2 is arranged between the sealing gasket 4 and the upper end of the shell 1; the electromagnetic shaft 2 can move up and down; the electromagnetic seat 3 is connected to the lower end of the shell 1, and the upper part of the electromagnetic seat 3 stretches into the framework 5; the electromagnetic seat 3 is also provided with two guide holes 31; the ground wire pin 61 and the main wire pin 62 of the coil 6 are respectively led out from the two lead holes 31; the electromagnetic seat 3 is connected with a copper plug 9, the copper plug 9 is of a T-shaped structure, and the copper plug 9 presses the ground wire pin 61 of the coil 6.
The shell 1 is formed by integrally drawing and stamping stainless steel soft magnetic materials, the upper part of the shell is of a horn-shaped necking structure, and the lower part of the shell is provided with an opening riveted with the electromagnetic seat. The housing 1 is shielded on the one hand from external possible magnetic influences and on the other hand binds the magnetic field generated by the inner coil to form a magnetic circuit.
In the present utility model, the spring 7 has a tapered structure with a large inner diameter at an upper portion and a small inner diameter at a lower portion, and the upper portion is engaged with the gasket 4 and the lower portion is engaged with the reduced structure of the housing 1. The spring 7 with the conical structure can effectively prevent the deflection generated by the overall transverse movement of the spring on one hand, and the phenomenon of overlapping of the coils of the spring can not occur during full compression on the other hand, so that the effective use length is greatly increased.
A gasket 8 sleeved on the electromagnetic shaft 2 is also arranged between the sealing gasket 4 and the spring 7; the gasket 8 is made of copper material and is formed by stamping once; the gasket 8 has a lower recess 81 and an upper flange 82, and the upper flange 82 supports the gasket 4, and the lower recess 81 cooperates with the spring 7 to support and position the gasket 4. The gasket cooperates with the spacer so that spring force can be transferred to the gasket through the rigid spacer so that the overall force of the flexible gasket is more uniform.
The middle part of the sealing gasket 4 is provided with a middle hole which does not penetrate, the sealing gasket 4 is connected with the shaft end of the electromagnetic shaft 2 through the middle hole, and the sealing gasket 4 completely covers the shaft end of the electromagnetic shaft 2; the sealing surface of the sealing gasket 4 is of a complete plane structure, and the sealing reliability is high.
The framework 5 is a plastic mold forming part, and the upper part of a long straight hole at the center of the framework is matched with the electromagnetic shaft 2; the lower end is tightly matched and fixed with the electromagnetic seat 3.
The electromagnetic shaft 2 is machined by adopting stainless steel soft magnetic materials, the upper part of the electromagnetic shaft is matched with the sealing gasket 4, and the lower part of the electromagnetic shaft penetrates through the shell 1 and is inserted into the framework 5; the electromagnetic shaft 2 can move up and down in the long straight hole of the framework 5 along with the attraction and detachment of the electromagnetic valve.
The lower end of the electromagnetic shaft 2 has a small diameter step 21. The electromagnetic valve has the suction of tens of thousands times in the service life, the end surface of the electromagnetic shaft 2 collides with the upper end surface of the electromagnetic seat 3 for tens of thousands times, and the edge of the shaft end surface is inevitably deformed outwards; the design of the small-diameter step 21 can effectively prevent the edge deformed outwards from scraping the inner hole wall of the framework so as to influence the up-and-down motion of the electromagnetic shaft.
The V-shaped pit 22 is arranged on the end face of the small-diameter step 21 of the electromagnetic shaft 2, so that the problem of center protrusion caused by cutter abrasion in the machining process can be effectively avoided.
As shown in fig. 2, the electromagnetic seat 3 is machined by stainless steel soft magnetic material, and the columnar bulge at the upper part of the electromagnetic seat is matched with the long straight hole of the framework 5. The side part of the electromagnetic seat 3 is provided with a groove structure 32 so as to be riveted with the shell 1 to form a connecting whole; the two leading holes 31 of the electromagnetic seat 3 are symmetrically arranged; a blind hole 33 is also formed in the middle of the electromagnetic seat 3, and the copper plug 9 is in interference fit with the blind hole 33; the inner wall of the lower part of the electromagnetic seat 3 is also provided with a flanging step structure 34 matched with the connecting needle 10. The electromagnetic seat 3 is connected with a valve body of a gas valve (plug valve) of the kitchen range in a spinning way through a screw cap. V-shaped pits are also arranged on the end surface of the electromagnetic seat 3, so that the problem of center protrusion caused by cutter abrasion in electromagnetic seat machining can be effectively avoided.
The lower part of the electromagnetic seat 3 is connected with a connecting needle; specifically, the upper part of the connecting needle 10 is sleeved with an O-shaped ring 101; an insulating spacer 102 is riveted at the middle part of the connecting pin 10; the insulating gasket 102 is propped against the flanging step structure 34 of the electromagnetic seat 3; the O-ring 101 forms a good seal with the inner wall of the electromagnetic seat 3. The lower part of the connecting needle 10 extends out of the electromagnetic seat 3. The main wire pin 62 of the coil 6 is sleeved with an insulating sleeve, passes through the inside of the connection needle 10, and is welded with the lower end of the connection needle 10. The connection pin 10 is electrically connected with an external kitchen range circuit board, and the kitchen range circuit board is also connected with a thermocouple.
After the electromagnetic valve is applied to a stove flameout protection device, when the electromagnetic valve is started to suck, a stove circuit board energizes a coil 6, current enters from a main line pin 62 and flows out from a ground line pin 61, the coil 6 generates a magnetic field, an electromagnetic shaft 2 and an electromagnetic seat 3 are magnetized to generate magnetic force, the electromagnetic shaft 2 and the electromagnetic seat 3 suck, and a sealing gasket 4 of the electromagnetic valve opens a gas channel of a gas valve body. In the attraction and holding state, a thermocouple connected to the kitchen range circuit board is heated to generate electric potential, the thermoelectric potential is used as an electric signal to be transmitted to the circuit board, and the circuit board senses the electromotive force and continuously supplies power to the coil so as to maintain attraction. If the thermocouple on the kitchen range circuit board cannot sense flame, the coil 6 is powered off, the electromagnetic shaft 2 is separated from the electromagnetic seat 3, and the sealing gasket 4 of the electromagnetic valve closes the gas channel of the gas valve body, so that the flameout protection effect is achieved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. A from inhaling formula solenoid valve for on cooking utensils flameout protection device, its characterized in that: comprises a shell, an electromagnetic shaft, an electromagnetic seat and a sealing gasket; a framework with a hollow structure is arranged in the shell, and a coil is wound on the framework; the lower part of the electromagnetic shaft extends into the framework; the upper end of the electromagnetic shaft is connected with the sealing gasket, and a spring sleeved on the electromagnetic shaft is arranged between the sealing gasket and the upper end of the shell; the electromagnetic shaft can move up and down; the electromagnetic seat is connected to the lower end of the shell, and the upper part of the electromagnetic seat extends into the framework; two guide holes are also arranged on the electromagnetic seat; the ground wire pin and the main wire pin of the coil are respectively led out from the two leading holes; the electromagnetic seat is connected with a copper plug, and the copper plug presses the ground wire pin of the coil.
2. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: the spring is of a conical structure.
3. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: a gasket sleeved on the electromagnetic shaft is further arranged between the sealing gasket and the spring, the gasket is provided with a lower concave part and an upper flange, and the upper flange supports the sealing gasket; the concave part is matched with the spring.
4. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: the lower end of the electromagnetic shaft is provided with a small-diameter step.
5. The self-priming solenoid valve for a cooktop flameout protection device of claim 4, wherein: the end face of the small-diameter step of the electromagnetic shaft is provided with a pit.
6. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: the framework is of an I-shaped structure.
7. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: the lower part of the electromagnetic seat is connected with a connecting needle, and a main line pin of the coil penetrates through the inside of the connecting needle and is welded with the lower end of the connecting needle.
8. The self-priming solenoid valve for a cooktop flameout protection device of claim 7, wherein: the connecting needle is connected with the kitchen range circuit board.
9. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 2, wherein: the upper part of the shell is a horn-shaped necking structure so as to be matched with the spring.
10. The self-priming electromagnetic valve for a flameout protection device of a kitchen range according to claim 1, wherein: the sealing surface of the sealing gasket is of a complete plane structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321663027.XU CN219954408U (en) | 2023-06-28 | 2023-06-28 | Self-priming electromagnetic valve for flameout protection device of kitchen range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321663027.XU CN219954408U (en) | 2023-06-28 | 2023-06-28 | Self-priming electromagnetic valve for flameout protection device of kitchen range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954408U true CN219954408U (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321663027.XU Active CN219954408U (en) | 2023-06-28 | 2023-06-28 | Self-priming electromagnetic valve for flameout protection device of kitchen range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954408U (en) |
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2023
- 2023-06-28 CN CN202321663027.XU patent/CN219954408U/en active Active
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