CN203594856U - Inversely-driven permanent magnet gas proportional valve - Google Patents
Inversely-driven permanent magnet gas proportional valve Download PDFInfo
- Publication number
- CN203594856U CN203594856U CN201320767223.1U CN201320767223U CN203594856U CN 203594856 U CN203594856 U CN 203594856U CN 201320767223 U CN201320767223 U CN 201320767223U CN 203594856 U CN203594856 U CN 203594856U
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- Prior art keywords
- valve
- proportional
- permanent magnet
- proportional valve
- valve body
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 7
- 210000000981 epithelium Anatomy 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 239000012528 membrane Substances 0.000 abstract 4
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000005347 demagnetization Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses an inversely-driven permanent magnet gas proportional valve. The inversely-driven permanent magnet gas proportional valve comprises a self-absorption valve and a proportional valve body, wherein the self-absorption valve and the proportional valve body are combined in a valve main body. The air outlet of the proportional valve body is formed in the upper end of the valve main body. A valve plug cushion on a plastic valve core is used in cooperation with a valve base on the valve main body for controlling the opening of the proportional valve body. The upper end of the plastic valve core abuts against and presses a return spring which abuts against a cover plate of the valve main body. An ejector rod is arranged at the lower end of the plastic valve core. A membrane covers a lower port of the valve main body and connected with the reverse proportional valve body. The proportional valve body comprises a permanent magnet and a proportional electromagnetic valve. The ejector rod penetrates through a central hole of the membrane and abuts against the upper end of the permanent magnet. The permanent magnet is connected with a magnet base. The upper end of the magnet base abuts against the lower side of the membrane. The periphery of the magnet base abuts against the bottom face of a bowl-shaped proportional valve body cover plate through a pressure stabilizing spring. The membrane is fixedly connected to the lower end face of the valve main body through the periphery of the over plate of the proportional valve body. The lower side of the bottom face of the proportional valve body cover plate is connected with the proportional electromagnetic valve. The proportional electromagnetic valve comprises a support which is connected to the lower end of the valve main body, wherein an iron core is connected to a nut fixed to the bottom of the support in an adjustable mode. The inversely-driven permanent magnet gas proportional valve can be used in a gas water heater and has the advantages of being small in size, small in air flow pressure loss and stable.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of gas ratio valve.
Background technique
Existing gas control valve door, although also there is application percentage valve, but its Principles of Regulation, the position of air inlet/outlet arranges, the stopping mode of valve, all miscellaneous, more or less there is such-and-such deficiency, for example suction port and air outlet are all located to the middle part of valve, the electromagnet of regulator is joined armature for moving iron core, stable-pressure device is located at the upper position of valve, these are arranged so that valve or volume is large, install inconvenient, Security is low, gaseous-pressure poor stability, or the not good potential safety hazard that exists of cut-off envelope valve arrangement, for example China Patent No. 201210466132.4, name is called the utility model patent of " current-limiting type gas ratio valve ", it comprises valve body, the lower end surface of valve body is provided with suction port, valve inner is provided with stick harness, the lower end of stick harness is provided with the patch that suction port can be blocked, the upper end of stick harness is provided with moving core, the outside of moving core is provided with several Proportional valve coils, between the lower end of moving core and stick harness, elastic recovery device is also installed, the upper end of moving core is also provided with limit stoper, by limit stoper is set, after Proportional valve coil electricity, moving core applies magnetic force to stick harness, make stick harness drive patch motion, between patch and suction port, form aperture, excessive or when too small when being applied to electric current on Proportional valve coil, limit stoper assurance suction port and patch are worked between maximum opening and minimum aperture.This model utility intention drives patch to make up the not good deficiency of cut-off envelope valve arrangement by setting up stick harness, raises the cost for this needs to set up mechanism's increase volume.
summary of the invention
The utility model technical issues that need to address are, overcome the volume that prior art combustion gas regulates Proportional valve to exist large, install inconvenient, Security is low, the not good defect of cut-off envelope valve arrangement, a kind of small volume is provided, more convenient, the reliable gas ratio valve of cut-off envelope valve is installed.
The purpose of this utility model is achieved by following technical proposals: the magneto gas ratio valve that a kind of upside-down drives, comprise self-priming valve and Proportional valve, it is characterized in that, self-priming valve and Proportional valve are combined in a right-angle type valve body, the outlet side of self-priming valve is communicated with the inlet end of Proportional valve, Proportional valve is provided with straight-through type buffering air cavity, the air outlet of Proportional valve is located at side, valve body upper end portion, the openings of sizes of Proportional valve coordinates control by being embedded in the valve plug pad of moulding on spool with the valve seat being located on valve body, the upper end of moulding spool compresses formation back pressure type envelope valve arrangement with the return spring withstanding on valve body cover plate, there is a push rod lower end of moulding spool, lower end mouth capping at valve body has epithelium, below epithelium, connect upside-down Proportional valve, Proportional valve comprises permanent magnet and proportional electromagnetic valve, push rod is pressed in permanent magnet upper-end surface through the center hole top of epithelium, permanent magnet is fixed in magnetic receiver, the intermediate portion of magnetic receiver upper end withstands on epithelium downside, the periphery position of magnetic receiver withstands on the bottom surface upside of the Proportional valve cover plate of bowl type by pressure-stabilizing spring, the periphery of epithelium is fixedly connected on valve body lower end face by the periphery of Proportional valve cover plate, Proportional valve cover plate bottom surface downside connects proportional electromagnetic valve, proportional electromagnetic valve comprises the support that is connected to valve body lower end face, the iron core adjustable ground of proportional electromagnetic valve is connected in the nut that is fixed on support bottom surface.
Form compound proportional valve by self-priming valve and Proportional valve, self-priming valve and Proportional valve are all with cutoff function, i.e. power-off can be cut off source of the gas, therefore it can save a stop valve than general Proportional valve, can reduce production costs; The gentle road of buffering air cavity of Proportional valve is by a side of right-angle type valve body to side, opposite side upper end portion, and profile is small and exquisite, and passage is smooth and easy, and air-flow crushing is little, is more suitable for computerized thermostatic gas instantaneous water heater and other gas appliance, and is more suitable for ultra-thin type etc.; By current regulating valve door open degree, coordinate permanent magnet to make to regulate sensitiveer more steady, under off-position, permanent magnet is inhaled all the time to the iron core in proportional electromagnetic valve coil, adding that return spring compresses moulds spool and forms back pressure type envelope valve arrangement, valve plug pad is produced to constant pulling force, make this valve port there is good sealing effect.
As preferably, proportional electromagnetic valve is by computer controller control, and the out-put supply of computer controller is [constant, and its output current wave is DC stacked AC wave shape.The corresponding certain valve port opening of each current value, within the scope of rated current, electric current is larger, aperture is larger, therefore requiring computer controller output current must be constant-current type, otherwise with extending service time, will make Proportional valve coil heating, and cause Coil resistance to increase, electric current reduces, air valve opening also can reduce, and affects the stability of water heater, requires the microcomputer controller output constant current driving power matching with Proportional valve simultaneously, current waveform is DC stacked interchange, the return difference minimum that can make like this Proportional valve, stable output, has given play to optimum performance; Controller can regulate electric current automatically to control gas flow by water temperature feedback signal automatically, thereby reaches the object of regulation and control water temperature and stable water temperature.
As preferably, the polarity of the core magnetism performance of proportional electromagnetic valve is contrary with the polarity of described permanent magnet.Permanent magnet when this setting makes work, in state of suspension, is conducive to regulate sensitiveer more steady.
As preferably, moulding spool is that plastic materials is made, and valve plug pad is that rubber material is made.This scheme of material selection is more conducive to become to produce to improve in batches effect.
As preferably, permanent magnet is by ferrite magnetic Cheng Bingyu spool made of stones riveting.Heatproof degree when application ferrite magnetite can well solve work, and do not affect demagnetization rate.
The beneficial effects of the utility model are:
1, while being provided with permanent magnet and work, in magnetic suspension state, be conducive to regulate sensitiveer more steady;
2, self-priming valve and Proportional valve all can be saved a stop valve with cutoff function and reduce costs;
3, the buffering gentle road of air cavity is by a side of right-angle type valve body to side, opposite side upper end portion, and profile is small and exquisite, and passage is smooth and easy, and air-flow crushing is little;
4, permanent magnet is by ferrite magnetic one-tenth made of stones, and heatproof degree is high, and demagnetization rate is low, permanent, stable performance of life-span;
5, volume is little, is applicable to ultra-thin type;
6, mould spool and comprise that push rod is plastic materials, can disposablely make;
6, magnetic receiver, by pressure-stabilizing spring top pressure ratio example valve cover, is offset the weight of spool and magnet, makes permanent magnet action equalization stable;
7, be specially adapted to popular various constant temp gas water heater.
Accompanying drawing explanation
?fig. 1 is the utility model structure and principle schematic.
In figure, self-priming valve 1; Buffering air cavity 2; Valve body 3; Valve seat 31; Valve body cover plate 32; Mould spool 4; Valve plug pad 41; Return spring 42; Push rod 43; Epithelium 5; Epithelium pallet 51; Elastic card 52; Proportional valve 6; Permanent magnet 61; Proportional electromagnetic valve 62; Support 621; Iron core 622; Nut 623; Magnetic receiver 63; Pressure-stabilizing spring 64; Proportional valve cover plate 65; ; Suction port 71; Housing 72; O-ring seals 73; Back shroud 74; Static iron core 75; Bracket panel 76; Coil 77; Moving iron core 78; Interior plug 781; Conduit 79; Filter screen 81; Taper spring 82; Bracket 83; Flap 84.
Embodiment
Below in conjunction with accompanying drawing and specific embodiments, the utility model is further described.
Embodiment: as shown in Figure 1, the magneto gas ratio valve that a kind of upside-down drives, comprise self-priming valve 1 and Proportional valve, self-priming valve 1 and Proportional valve 2 are combined in a right-angle type valve body 3, the outlet side 11 of self-priming valve 1 is communicated with the inlet end of Proportional valve, Proportional valve 2 is provided with straight-through type buffering air cavity 2, the air outlet of Proportional valve 2 is located at valve body 3 sides, upper end portion, the openings of sizes of Proportional valve 2 coordinates control by being embedded in the valve plug pad 41 of moulding on spool 4 with the valve seat 31 being located on valve body 3, the upper end of moulding spool 4 compresses formation back pressure type envelope valve arrangement with the return spring 42 withstanding on valve body cover plate 32, there is a push rod 43 lower end of moulding spool 4, lower end mouth capping at valve body 3 has epithelium 5, above epithelium 5, liner is by epithelium pallet 51, epithelium 5 connects upside-down Proportional valve 6 below, Proportional valve 6 comprises permanent magnet 61 and proportional electromagnetic valve 62, push rod 43 passes the center hole of epithelium 5 and is connected with magnetic receiver 63 by elastic card 52, push rod 43 tops are pressed in permanent magnet 61 upper-end surfaces, permanent magnet 61 is fixed in magnetic receiver 63, the intermediate portion of magnetic receiver 63 upper ends withstands on epithelium 5 downsides, the periphery position of magnetic receiver 63 withstands on the bottom surface upside of the Proportional valve cover plate 65 of bowl type by pressure-stabilizing spring 64, the periphery of epithelium 5 is fixedly connected on valve body 3 lower end surfaces by the periphery of Proportional valve cover plate 65, Proportional valve cover plate 65 bottom surface downsides connect proportional electromagnetic valve 62, proportional electromagnetic valve 62 comprises the support 621 that is connected to valve body 3 lower end surfaces, the iron core 622 of proportional electromagnetic valve 62 is connected in the nut 623 that is fixed on support 621 bottom surfaces by outside thread adjustable ground.
Form compound proportional valve by self-priming valve 1 and Proportional valve, self-priming valve 1 and Proportional valve 2 are all with cutoff function, i.e. power-off can be cut off source of the gas, therefore it can save a stop valve than general Proportional valve, can reduce production costs; The buffering air cavity 2 of Proportional valve and air flue are by a side of right-angle type valve body 3 to side, opposite side upper end portion, and profile is small and exquisite, and passage is smooth and easy, and air-flow crushing is little, is more suitable for computerized thermostatic gas instantaneous water heater and other gas appliance, and is more suitable for ultra-thin type etc.; By current regulating valve door open degree, coordinate permanent magnet 61 to make to regulate sensitiveer more steady, under off-position, permanent magnet 61 is inhaled all the time to the iron core 622 in proportional electromagnetic valve coil, adding that return spring 42 compresses moulds spool 4 and forms back pressure type envelope valve arrangement, valve plug pad 41 is produced to constant pulling force, make this valve port there is good sealing effect.Arrow A in Fig. 1 is depicted as airflow direction.
Proportional electromagnetic valve 62 is by computer controller control, and the out-put supply of computer controller is [constant, and its output current wave is DC stacked AC wave shape.The corresponding certain valve port opening of each current value, within the scope of rated current, electric current is larger, aperture is larger, therefore requiring computer controller output current must be constant-current type, otherwise with extending service time, will make Proportional valve coil heating, and cause Coil resistance to increase, electric current reduces, air valve opening also can reduce, and affects the stability of water heater, requires the microcomputer controller output constant current driving power matching with Proportional valve simultaneously, current waveform is DC stacked interchange, the return difference minimum that can make like this Proportional valve, stable output, has given play to optimum performance; Controller can regulate electric current automatically to control gas flow by water temperature feedback signal automatically, thereby reaches the object of regulation and control water temperature and stable water temperature.
The polarity of iron core 622 magnetic of proportional electromagnetic valve 62 is contrary with the polarity of described permanent magnet 61.This setting only needs appropriately to select the current direction of passing ratio valve coil just can reach, and the electric power polarity of exact connect ion Proportional valve coil just can reach in other words; Permanent magnet 61 while making work, in magnetic suspension state, is conducive to adjustable pressure sensitiveer more steady.
Mould spool 4 and make for plastic materials, valve plug pad 41 is made for rubber material.This scheme of material selection is more conducive to become to produce to improve in batches effect.Mould spool 4 and push rod 43 for integral type structure, be convenient to manufacture by injection molding, reduce the cost, work efficiency is provided.
The suction port 71 of self-priming valve is located at the lower end of valve body 3, when mounted, must guarantee that this suction port 71 installs vertically downward, and inclination is less than 5 degree, and suction port 71 is separated with filter screen 81, self-priming valve housing 72 is connected to a port of right-angle type valve body 3, joint is lined with O-ring seals 73, there is back shroud 74 housing 72 rear ends, the central position of back shroud 74 connects the static iron core 75 of self-priming valve, in housing 72, fix the coil 77 of self-priming valves by bracket panel 76, in coil 77, move and be furnished with moving iron core 78, moving iron core 78 coordinates by conical surface with the end face of static iron core 75, conical surface is communicated with the front end of moving iron core 78 by the conduit 79 of being located at coil rack inner side, the center portion of moving iron core 78 have interior plug 781 can anti-stop iron core 78 and static iron core 75 there is rigid collision, the front end of housing 72 is pressed the flap 84 of self-priming valve by taper spring 82 and bracket 83 tops, flap 84 coordinates with the inlet valve seat on valve body 3 switch that forms self-priming valve.
The utility model can use in various constant temp gas water heaters, have that volume is little, low cost, the life-span is long, air-flow crushing is little, regulate sensitive feature stably, if those skilled in the art does simple modification or replacement to foregoing invention content, such change can not think to depart from scope of the present utility model, all like this to the apparent modification of those skilled in the art by within being included in the scope of claim of the present utility model.
Claims (5)
1. the magneto gas ratio valve that upside-down drives, comprise self-priming valve and Proportional valve, it is characterized in that, self-priming valve and Proportional valve are combined in a right-angle type valve body, the outlet side of self-priming valve is communicated with the inlet end of Proportional valve, Proportional valve is provided with straight-through type buffering air cavity, the air outlet of Proportional valve is located at side, valve body upper end portion, the openings of sizes of Proportional valve coordinates control by being embedded in the valve plug pad of moulding on spool with the valve seat being located on valve body, the upper end of moulding spool compresses formation back pressure type envelope valve arrangement with the return spring withstanding on valve body cover plate, there is a push rod lower end of moulding spool, lower end mouth capping at valve body has epithelium, below epithelium, connect upside-down Proportional valve, Proportional valve comprises permanent magnet and proportional electromagnetic valve, push rod is pressed in permanent magnet upper-end surface through the center hole top of epithelium, permanent magnet is fixed in magnetic receiver, the intermediate portion of magnetic receiver upper end withstands on epithelium downside, the periphery position of magnetic receiver withstands on the bottom surface upside of the Proportional valve cover plate of bowl type by pressure-stabilizing spring, the periphery of epithelium is fixedly connected on valve body lower end face by the periphery of Proportional valve cover plate, Proportional valve cover plate bottom surface downside connects proportional electromagnetic valve, proportional electromagnetic valve comprises the support that is connected to valve body lower end face, the iron core adjustable ground of proportional electromagnetic valve is connected in the nut that is fixed on support bottom surface.
2. the magneto gas ratio valve that upside-down according to claim 1 drives, is characterized in that, proportional electromagnetic valve is by computer controller control, and the out-put supply of computer controller is [constant, and its output current wave is DC stacked AC wave shape.
3. the magneto gas ratio valve that upside-down according to claim 1 and 2 drives, is characterized in that, the polarity of the core magnetism performance of proportional electromagnetic valve is contrary with the polarity of described permanent magnet.
4. the magneto gas ratio valve that upside-down according to claim 3 drives, is characterized in that, moulding spool is that plastic materials is made, and valve plug pad is that rubber material is made.
5. the magneto gas ratio valve that upside-down according to claim 3 drives, is characterized in that, permanent magnet is by ferrite magnetic Cheng Bingyu spool made of stones riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320767223.1U CN203594856U (en) | 2013-11-29 | 2013-11-29 | Inversely-driven permanent magnet gas proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320767223.1U CN203594856U (en) | 2013-11-29 | 2013-11-29 | Inversely-driven permanent magnet gas proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594856U true CN203594856U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320767223.1U Expired - Lifetime CN203594856U (en) | 2013-11-29 | 2013-11-29 | Inversely-driven permanent magnet gas proportional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692402A (en) * | 2019-03-12 | 2020-09-22 | 芜湖美的厨卫电器制造有限公司 | Gas proportional valve for gas water heater and gas water heater |
| CN114526352A (en) * | 2021-12-31 | 2022-05-24 | 广东美的厨房电器制造有限公司 | Gas equipment and valve body assembly applied to same |
-
2013
- 2013-11-29 CN CN201320767223.1U patent/CN203594856U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692402A (en) * | 2019-03-12 | 2020-09-22 | 芜湖美的厨卫电器制造有限公司 | Gas proportional valve for gas water heater and gas water heater |
| CN114526352A (en) * | 2021-12-31 | 2022-05-24 | 广东美的厨房电器制造有限公司 | Gas equipment and valve body assembly applied to same |
| CN114526352B (en) * | 2021-12-31 | 2023-12-15 | 广东美的厨房电器制造有限公司 | Gas equipment and valve body assembly applied to same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
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| CX01 | Expiry of patent term |