CN1341825A - Magnetic latching solenoid valve for safe protection device of combustion equipment - Google Patents
Magnetic latching solenoid valve for safe protection device of combustion equipment Download PDFInfo
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- CN1341825A CN1341825A CN 00130778 CN00130778A CN1341825A CN 1341825 A CN1341825 A CN 1341825A CN 00130778 CN00130778 CN 00130778 CN 00130778 A CN00130778 A CN 00130778A CN 1341825 A CN1341825 A CN 1341825A
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Abstract
The present invention relates to a solenoid valve for gas range. It possesses a press manual operation mechanism with automatic reset function, a magnetic holding electromagnet seal-mounted in the cavity body of gas valve and cut-off valve mechanical device. The press handle makes the described solenoid valve be in magnetic holding normal-opening valve position, when the reserve excitation coil DZF of the magnetic holding solenoid valve is conducted by means of pulse, the gas source can be automatically closed by means of solenoid value. Said invention adopts low-carbon steel to make iron core, its structure and process are simple, when valve is closed, it only consumers D.C. pulse power with 1.5-3V and 0.2 A/0.02 sec.
Description
The present invention is dividing an application of Chinese invention patent application CN98111838.0.Original application day: 1998.01.23; Application number: 98111838.0; Denomination of invention: the preparation method of flame sensor and combustion utensile safety protector.
The present invention relates to a kind of combustion gas blowout protection magnetic valve of combustion utensile safety protector, particularly a kind of magnetic holding solenoid valve belongs to the electromagnet and the mechanical magnetic valve field of electricity.
In the prior art, CN89105949.0 provides a kind of technical scheme of magnetic holding type tractive electromagnet.Its main weak point is: this is a kind of general technical scheme that relates to magnetic-holding electric magnet, and magnetic structure is unreasonable, lacks manual-operating mechanism.
The objective of the invention is to overcome the weak point of above-mentioned prior art; the magnetic holding solenoid valve that provides a kind of combustion utensile safety protector to use; it has manually drives valve, opens not power consumption under the valve state, only consumes when closing valve 1.5～3V; 0.15 the pulsed operation electric current about～0.2A/20mS, its structure and technology are simple ripe, with low cost, volume is small and exquisite, work is highly reliable.
Purpose of the present invention can realize by following measure:
The magnetic holding solenoid valve of combustion utensile safety protector, the axis part of valve is provided with a cavity, a handle, one can axially-movable connecting rod, a washer that links with the connecting rod rigidity, a spring constitutes the automatic reset mechanism of magnetic valve handle/connecting rod, described connecting rod passes valve body and makes the cavity of described magnetic valve and valve body space outerpace keep essential air-tightness by one or more sealing device, the middle part of cavity is provided with a control mouth, the one side is a gas inlet, opposite side is the gas outlet, a magnetic-holding electric magnet, comprise upper magnet yoke 1, fixedly magnetic core 2, permanent magnet 3, side magnetic yoke 4, lower yoke 5, solenoid 6, bobbin 7, moving iron core 8 and back-moving spring 9, so that fixedly magnetic core 2 and moving unshakable in one's determination 8 central axis are symmetry axis, be formed on geometry, the installation site, structural behaviour, the symmetrical work magnetic circuit in magnetic property aspect, wherein permanent magnetic circuit is closed symmetrical magnetic circuits when electromagnetic actuation, the permanent-magnet line passes moving unshakable in one's determination 8 main working gas gap and parallel each other with the main flux of the electromagnetism magnetic line of force in the described magnetic circuit, the polarity on two planes up and down of permanent magnet 3 that is installed in the central axis both sides is opposite each other, central part in lower yoke 5 is provided with the guide rail bearing that moving 8 insertions unshakable in one's determination are slided, it has the inboard vertical plane of regularization, it is characterized in that: magnetic-holding electric magnet 200 is sealed to be installed on the bottom valve seat 205 of described cavity, its 8 and valve rod 10 rigidity moving unshakable in one's determination link, the other end of valve rod 10 is installed the supporting plate 12 that a rigid material is made, the valve plug 11 that a flexible material is made is installed on the outer side plane of supporting plate 12, when described magnetic holding solenoid valve is in when closing valve position, be sleeved on the valve rod 10 and be bearing in supporting plate 12 and guide rail bearing 51 between back-moving spring 9 force control mouth 217 tight closings of valve plug 11 with described cavity; Pressing operation handle 201 moves connecting rod 202 to the inside and clashes into valve rod 10 and drives valve plug 11 and moving unshakable in one's determination 8 motions to the inside, described magnetic holding solenoid valve is the valve position of opening that magnetic remains on zero-power after the release handle, at this moment, keep a suitable axial air gap Δ H ' between the outside end face of the inner side end of connecting rod 202 and valve rod 10; The solenoid 6 of magnetic-holding electric magnet 200 is that the reverse excitation of a pulsation job is closed valve coil DZF.The side magnetic yoke 4 of described magnetic-holding electric magnet 200 is cylindric magnetic conductors, be provided with an axle center hole 32 at the bottom of the cylinder, a smooth outer pole-face 23 is arranged at the bottom of the cylinder, and the open top end position of cylindric magnetic conductor is provided with an inner stopper 61 and smooth seam inner edge surface 62; The lower yoke 5 of described magnetic-holding electric magnet 200 is circular orifices that are provided with central axis hole, the outside of described axis hole is provided with the circular guide rail bearing 51 of an evagination, by the pressurization interference fit described lower yoke 5 is imbedded the described seam inner edge surface 62 of described side magnetic yoke 4, its best magnitude of interference is no less than 0.02mm.The upper magnet yoke 1 of described magnetic-holding electric magnet 200 be one with the long-pending suitable circular yoke of described cylindric magnetic conductor projection plane, its central part is provided with a fixedly magnetic core 2,38, one nuts of cylinder 16 that the axis part place in described fixedly magnetic core 2 outsides also is provided with an evagination cooperate a cored screw 15 that cylinder 38 and described magnetic-holding electric magnet 200 are fixed on the described valve seat 205.Moving unshakable in one's determination 8 of described magnetic-holding electric magnet 200 also is provided with one at the end near described guide rail bearing 51 and controls the confined planes 81 that moves impulse stroke δ unshakable in one's determination.Between the central axis hole of moving unshakable in one's determination 8 and described magnetic-holding electric magnet bobbin 7 of described magnetic-holding electric magnet 200, and all reserve enough the air gaps 33 so that the air bag damping phenomena that produces when eliminating described moving axially-movable unshakable in one's determination at the described magnetic-holding electric magnet solenoid 6 and the inner wall space of the cylindric magnetic conductor of the described magnetic-holding electric magnet of sealing.Be provided with an annular groove on the mating surface of moving 8 outboard end unshakable in one's determination, fill sealing ring or sealed solid filler 53 in described groove, the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.Be provided with an annular groove on the inboard mating surface of guide rail bearing 51, fill sealing ring or sealed solid filler 53 in described groove, the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.The outside top that stuffing-box housing 57 fixes at described guide rail bearing 51, fill sealing ring or sealed solid filler 53 in stuffing-box housing 57, the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.Also be provided with on the annular lip 63 of described inner stopper more than two and turn over riveting pressure point 64 in uniform.
Compared with the prior art the present invention has following advantage:
1. circuit structure and production technology are simple, and volume is small and exquisite.
2. cheap for manufacturing cost.
3. defencive function is reasonable, and manually opened magnetic valve realizes that no power consumption magnetic keeps operation, and flame-out accident is protected fast, than 9 times of existing national standard (gas instantaneous water heater) raising speed.
4. the Overall Power Consumption of one four duration and degree of heating burner when normal combustion is about 3V/1.5 μ A or 4.5V/3 μ A, reduces about 4000 times than the power consumption of conventional AC induction type flame sensor.
5. through the operation of the keying about 3000 times more than 2 years, prove that the cmos circuit and the magnetic holding solenoid valve work of the present invention's proposition is all very reliable.
6. can under the prerequisite that does not change existing combustion gas tool machine product basic structure, implement the present invention.
Accompanying drawing drawing explanation of the present invention:
Fig. 1. magnetic holding solenoid valve example structure schematic diagram.
Fig. 2. magnetic holding solenoid valve electromagnet embodiment.
Fig. 3. the moving unshakable in one's determination and guide rail bearing sealing device structure embodiment of magnetic holding solenoid valve.
Fig. 4. combustion utensile safety protector embodiment.
The invention will be further elaborated below in conjunction with accompanying drawing.
Fig. 1 shows magnetic holding solenoid valve example structure schematic diagram of the present invention.
Whole valve body is fixedly installed on the interior spatial structure of burner.The cut-off type magnetic holding solenoid valve that (relevant burner partly this figure omission is not painted) described in the present embodiment magnetic valve is a bi-bit bi-pass.The axis part of valve is provided with a cavity, and the one side communicates with air inlet 216, and the middle part of cavity is provided with a control mouth 217, and it communicates with the gas outlet 218 of cavity opposite side.The magnetic-holding electric magnet 200 of a magnetic valve is sealed to be installed on the bottom valve seat 205 of cavity, it has the valve rod 10 of an axially-movable, one by spring 9, annexes such as supporting plate are installed the other end that the sheet valve plug 11 of locating is installed in valve rod 10, in the upper end of cavity with the control interruption-forming, with valve rod 10 same axle center, be provided with a through hole 243 at the top of valve body 204, the connecting rod 202 of an axially-movable passes from through hole 243, and their cross-sectional area should match each other and make cavity and valve body space outerpace keep certain air-tightness by one or more fixing seal devices 233 that are installed in through-hole wall.Washer 203 rigidity are attached on the valve rod, are provided with a spring 231 between washer and the control mouth, and under the spring tension effect, connecting rod 202 moves laterally and be spacing by the upper end inner side plane institute of washer and cavity.A handle 201 is installed in an end of the connecting rod that stretches out valve body, and 637 1 enough operation height Δ H of the hole of the burner guidance panel 602 of emerging, and the other end of connecting rod 202 and sheet valve plug 11 and valve rod 10 leave a suitable axial air gap Δ H '.Under nature, sheet valve plug 11 is closed described control mouthfuls 217 under the tension force effect of spring 9, and this moment, the air inlet and the gas outlet of magnetic valve were tightly cut off, as Fig. 1 a) shown in.Manually push handle 201 and connecting rod 202, force sheet valve plug 11 and valve rod 10 to move axially to the inside and clash into described valve rod 10 and drive moving unshakable in one's determination 8 motions to the inside of described magnetic-holding electric magnet 200 simultaneously and coincide with fixing magnetic core 2, whole connecting rod, handle return to reset condition after loosing one's grip under the tension force effect of spring 231, but this moment is closed because of the polarization magnetic circuit of described electromagnet, so the control mouth of air inlet after opening is communicated with the gas outlet, what described magnetic holding solenoid valve promptly was in no power consumption manually drives valve position, as Fig. 1 b) shown in.
Fig. 2 shows the embodiment of the magnetic-holding electric magnet of magnetic holding solenoid valve of the present invention.
It is a new invention that forms through further improving on the granted patent CN89105949.0 basis that the inventor obtains.
As seen from Figure 1, shown in Fig. 2 only be the combustion utensile safety protector magnetic valve core partly: i.e. the parts profilograph of cut-off type magnetic holding solenoid valves such as described magnetic-holding electric magnet 200 and described valve rod 10, sheet valve plug 11, back-moving spring 9.As a complete described safety protective valve, Fig. 2 has omitted traditional valve body, valve seat, connecting rod, connecting rod sealing device and operating grip.Wherein, upper magnet yoke 1, permanent magnet 3, side magnetic yoke 4, lower yoke 5, guide rail bearing 51, fixedly magnetic core 2, moving unshakable in one's determination 8 constitutes the polarization magnetic circuit of magnetic-holding electric magnets 200; And side magnetic yoke 4, lower yoke 5, guide rail bearing 51, moving unshakable in one's determination 8, the fixing electromagnetic circuit of the exhausted magnetosheath pipe 21 formation magnetic-holding electric magnets 200 of magnetic core 2, solenoid 6 and punching, more detailed description can be consulted the CN89105949.0 literature content.Described side magnetic yoke 4 is magnetic conductors cylindraceous, and a smooth outer pole-face 23 is arranged at the bottom of the cylinder, is provided with an axle center hole 32 at the bottom of the cylinder, the diameter in hole than the slightly larger in diameter of described fixedly magnetic core 2 some.The top at the uncovered position of cylinder is provided with an inner stopper 61 and smooth seam inner edge surface 62, and the axial height of seam exceeds about 1 to 2 millimeter of the thickness of lower yoke 5.A bobbin 7 axially is installed in the described cylinder, solenoid 6 be one flat around reverse magnet exciting coil DZF.The end of bobbin 7 is the exhausted magnetosheath pipes 21 (can certainly be made into an individual part) of a punching, and it is sleeved on fixedly on the magnetic core 2 and passes axle center hole 32.Be installed in parallel outside side magnetic yoke between the pole-face 23 and upper magnet yoke 1 at the polarized permanent magnet 3 of thickness direction, as seen by above-mentioned, because the existence of the exhausted magnetosheath pipe 21 of punching, permanent magnet 3 is unlikely formation magnet short-cut path.Moving unshakable in one's determination 8 is smooth cylinders, its pole-face and the fixing work pole-face 80 of the pole-face formation electromagnet of magnetic core 2.Moving unshakable in one's determination 8 present the face of cylinder of two different-diameters on axial height, the wherein close fixedly face of cylinder of magnetic core 2 one sides has main axial height and big slightly diameter; The intersection, the face of cylinder of two different-diameters forms the confined planes 81 that moving 8 impulse strokes unshakable in one's determination of control are no more than the δ value.Described lower yoke 5 is whole orifice plates of a circle, its axis part is provided with the guide rail bearing 51 of an evagination, it has smooth inner surface, with good being slidingly matched of moving 8 formation unshakable in one's determination, the sliding gap 52 of joining is generally tens of microns, making the whole orifice plate of described circle by the weight cooperation is that lower yoke 5 is imbedded in the seam edge face 62 of side magnetic yoke 4, and its best magnitude of interference is not less than 0.02 millimeter.At this moment because the annular lip 63 of inner stopper still exceeds about 1 to 2 millimeter of the outer edge surface of lower yoke 5, for the purpose of the location, on described annular lip 63, also be provided with uniform, be no less than more than two in turn over riveting pressure point 64.When moving back and forth, moving iron core 8 forms unsuitable air bag damping phenomena in order to eliminate in the axis hole of bobbin 7, the present invention's regulation, at the cylinder inner wall space of bobbin 7, must be reserved with enough air-gaps 33 with the side magnetic yoke 4 of moving iron core 8 and bobbin 7 and solenoid 6 and sealing.A valve rod 10 is rigidly connected with moving unshakable in one's determination 8, back-moving spring 9 is sleeved on outside valve rod and the guide rail bearing 51, valve rod 11 is provided with necessary cannelure, and sheet valve plug 11, pad 13, key pin 14 and the metal masthead 34 of back-moving spring locating flange 35, rigid tray 12, flexibility is installed respectively.For magnetic property and the processing technology of improving described magnetic-holding electric magnet, described fixedly magnetic core 2 can be a complete magnetic conductor with upper magnet yoke 1, is welded into an integral body after also can making respectively.Axis part place in described fixedly magnetic core 2 outsides, also be provided with the cylinder 38 of an evagination, rely on to expand riveting or be threaded will assemble all-in-one-piece magnetic-holding electric magnet 200 and cored screw 15 and nut 16 by cylinder 38 and is coupled to one and be fixed on the valve seat 205.Solenoid 6 draw electric wire 19 after passing the through wires hole 37 of side magnetic yoke 4 and upper magnet yoke 1, thereby with encapsulant 17 with the inner space of cored screw 15 and permanent magnet 3 and upper magnet yoke 1 and fixedly between the magnetic core 2 redundant space of formation all fill up and guarantee that magnetic holding solenoid valve has enough air-tightness.At last, join inside that gap invade electromagnet by moving unshakable in one's determination 8 with the cunning of guide rail bearing 51 formation in order to prevent impurity such as the tar in the combustion gas, little water droplet, molysite, the present invention also is provided with at the outboard end place that described cunning is joined the gap and is mounted in guide rail bearing or the moving surperficial annular groove unshakable in one's determination or is locked in sealing ring or sealed solid filler 53 in the stuffing-box housing, and specific embodiments can be referring to node A and shown in Figure 3.
Fig. 3 shows the moving iron core of magnetic holding solenoid valve of the present invention and the guide rail bearing cunning is joined the various embodiment schemes that sealing ring or airtight and watertight padding are set between the face.
Because the burner gaseous-pressure is generally all very low, its value is about about 1-5kpa, and sealing device of the present invention requires lower than the sealing device described in the common mechanical engineering, its main purpose is that the impurity that prevents the solid shape such as tar, the globule, molysite class black dirt in the combustion gas is joined the gap from described cunning and invaded electromagnet inside, and the pole-face of electromagnet can not finely be coincide.Fig. 3 has shown the structure of Fig. 2 node A: by 1a) as seen, be provided with the annular groove of a level at the end of guide rail bearing 51 medial surface, be provided with the sealing ring 53 of solid material making in the groove even also add the certain solid lubricant 54 of notes, push after moving unshakable in one's determination 8, join gap 52 and obturage sliding thereby sealing ring 53 is subjected to slight compression.Fig. 3 c), Fig. 3 e) shown in scheme described cannelure is arranged on moving unshakable in one's determination 8 outer surface, and for the purpose of easy to assembly, all sealing devices of Fig. 3 are equipped with to make installs fit-up gap 55 easily.Fig. 3 b), Fig. 3 H Fig. 3 F Fig. 3 D))) then show the embodiment of another kind of encapsulation scheme: be provided with sealing ring or sealed solid filler 53 at the top of guide rail bearing 51, it is locked within the stuffing-box housing 57.Element 57 can fix in the outside of guide rail bearing groove 56, as Fig. 3 b) shown in.Also can be fastened on the upper magnet yoke 5, as Fig. 3 D with screw 58) shown in.Can also utilize back-moving spring 9 and locating flange 59 to be fixed, as Fig. 3 F) shown in.Certainly can also filler 53 be squeezed and sealed sliding is joined the gap with traditional binding thread 60, as Fig. 3 H) shown in.
Fig. 4. combustion utensile safety protector embodiment.
This is the WO98/33019 that proposes of the inventor and the combustion utensile safety protector embodiment of Chinese invention patent application CN98111838.0.
It has the flame sensor 801 of CN98111838.0 claim 5 regulation, in the present embodiment, also adopt the CMOS phase inverter and the feedback network of two cascades to form auto-excitation type electric oscillator 101, about Fig. 5, Fig. 1 embodiment explanation that element number, circuit structure and the operation principle of described flame sensor 01 and described electro coupled oscillator 101 can be consulted CN98111838.0, present embodiment no longer gives repetition.Different with CN98111838.0 Fig. 8 embodiment is: the burner gas control valve interlocking switch LK of present embodiment is the moving pass of running jointly of one group of one pole, it is connected when opening valve position, disjunction when closing valve position, switch LK seals in the negative or positive electrode main circuit of power supply E1.Co simulate test circuit 808 is composed in series and is attempted by on node 108 and the G point by the low values of resistors Rc of a number kilo-ohm and making button LAC.During the simulated accident state, only need press LAC and surpass the setting time-delay, level amplitude discriminator 106 is that the output of CMOS inverter ic 4 is exported 1 level emergency logic signal immediately, and control module circuit 8001 and accident performance element circuit 8002 will start work on time.About the formation of described control module circuit 8001 with accident " is stopped working " and the operation principle of accident " short circuit " can be consulted related description such as Fig. 5 and Fig. 8, present embodiment is omitted and is no longer repeated.In the present embodiment, only the CMOS hex inverter chip of a CD4069 of needs can satisfy whole requirements of flame sensor 801 and 8001 pairs of IC circuit of control module circuit, this shows that its structure is very ingenious, simple and cheap.
By CN98111838.0 claims and specification as seen, magnetic holding solenoid valve provided by the invention is installed on the air inlet lateral line of described burner or burner burner, magnetic holding solenoid valve provided by the invention can also be installed on the burner fuel gas source air intake branch in addition.
When burner takes place flame-out accident, flame probe by the gas accidentses such as electric conductor short circuit beyond the flame, flame sensor 801 sends accident level 1 signal, control circuit 8001 sends the monostable triggering signal of tens of milliseconds of pulsewidths after time-delay in 3 to 4 seconds, power driving circuit 804 conductings, the reverse excitation of magnetic holding solenoid valve is closed valve coil DZF conducting, and magnetic holding solenoid valve discharges and close the fuel gas source of described burner automatically.
Obviously; present embodiment mainly provides accident " to stop working " and two kinds of basic protections of accident " short circuit "; but as long as with other sensor; for example earthquake, combustion liquid or signal of sensor such as gaseous-pressure superpressure, smog be adjusted into 1 level signal (the present invention is all by the positive logic design) and be connected to described node 109 ' or node e on, just can carry out simple to the defencive function of combustion utensile safety protector of the present invention and effectively expansion.
The CN98111838.0 that for further details, please refer to inventor's proposition discloses the explanation of relevant Fig. 8 embodiment in the text.
In addition, open text of one of basic patent of the present invention: ZL89105949.0 and mandate text all show: the present invention can adopt mild steel to make the iron core of magnetic-holding electric magnet.
Claims (10)
1. the magnetic holding solenoid valve of combustion utensile safety protector; the axis part of valve is provided with a cavity; a handle; one can axially-movable connecting rod; a washer that links with the connecting rod rigidity; a spring constitutes the automatic reset mechanism of magnetic valve handle/connecting rod; described connecting rod passes valve body and makes the cavity of described magnetic valve and valve body space outerpace keep essential air-tightness by one or more sealing device; the middle part of cavity is provided with a control mouth; the one side is a gas inlet; opposite side is the gas outlet; a magnetic-holding electric magnet; comprise upper magnet yoke [1]; fixing magnetic core [2]; permanent magnet [3]; side magnetic yoke [4]; lower yoke [5]; solenoid [6]; bobbin [7]; moving [8] and back-moving spring [9] unshakable in one's determination; central axis with fixing magnetic core [2] and moving [8] unshakable in one's determination is a symmetry axis; be formed on geometry; the installation site; structural behaviour; the symmetrical work magnetic circuit in magnetic property aspect; wherein permanent magnetic circuit is closed symmetrical magnetic circuits when electromagnetic actuation; permanent-magnet line and the main flux of the electromagnetism magnetic line of force pass the main working gas gap of moving [8] unshakable in one's determination and parallel each other in the described magnetic circuit; the polarity on two planes up and down of permanent magnet [3] that is installed in the central axis both sides is opposite each other; central part in lower yoke [5] is provided with the guide rail bearing that moving [8] unshakable in one's determination insertion is slided; it has the inboard vertical plane of regularization, it is characterized in that:
A. on the sealed bottom valve seat [205] that is installed in described cavity of a magnetic-holding electric magnet [200], its moving iron core [8] links with a valve rod [10] rigidity, the other end of valve rod [10] is installed the supporting plate [12] that a rigid material is made, the valve plug [11] that a flexible material is made is installed on the outer side plane of supporting plate [12], when described magnetic holding solenoid valve is in the pass valve position, is sleeved on valve rod [10] back-moving spring [9] last and that be bearing between supporting plate [12] and the guide rail bearing [51] and forces control mouth [217] tight closing of valve plug [11] described cavity;
B. pressing operation handle [201] moves connecting rod [202] to the inside and clashes into that valve rod [10] drives valve plug [11] and moving iron core [8] moves to the inside, described magnetic holding solenoid valve is the valve position of opening that magnetic remains on zero-power after the release handle, at this moment, keep a suitable axial air gap Δ H ' between the outside end face of the inner side end of connecting rod [202] and valve rod [10];
C. the solenoid [6] of magnetic-holding electric magnet [200] is the reverse excitation pass valve coil DZF of a pulsation job.
2. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: the side magnetic yoke [4] of described magnetic-holding electric magnet [200] is a cylindric magnetic conductor, be provided with an axle center hole [32] at the bottom of the cylinder, a smooth outer pole-face [23] is arranged at the bottom of the cylinder, the open top end position of cylindric magnetic conductor is provided with an inner stopper [61] and smooth seam inner edge surface [62], also is provided with on the annular lip of described inner stopper [63] more than two and turns over riveting pressure point [64] in uniform.
3. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: the lower yoke [5] of described magnetic-holding electric magnet [200] is a circular orifice that is provided with central axis hole, the outside of described axis hole is provided with the circular guide rail bearing [51] of an evagination, by the pressurization interference fit described lower yoke [5] is imbedded the described seam inner edge surface [62] of described side magnetic yoke [4], its best magnitude of interference is no less than 0.02mm.
4. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: the upper magnet yoke [1] of described magnetic-holding electric magnet [200] be one with the long-pending suitable unitary circular yoke of described cylindric magnetic conductor projection plane, its central part is provided with a fixedly magnetic core [2], the axis part in described fixedly magnetic core [2] outside also is provided with the cylinder [38] of an evagination, and a nut [16] cooperates a cored screw [15] that cylinder [38] and described magnetic-holding electric magnet [200] are fixed on the described valve seat [205].
5. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: the moving iron core [8] of described magnetic-holding electric magnet [200] also is provided with the confined planes [81] of a moving impulse stroke δ unshakable in one's determination of control at the end near described guide rail bearing [51].
6. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: between the moving iron core [8] of described magnetic-holding electric magnet [200] and the central axis hole of described magnetic-holding electric magnet bobbin [7], and all reserve enough the air gaps [33] so that the air bag damping phenomena that produces when eliminating described moving axially-movable unshakable in one's determination at the described magnetic-holding electric magnet solenoid [6] and the inner wall space of cylindric magnetic conductor of the described magnetic-holding electric magnet of sealing.
7. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: on the mating surface of moving [8] outboard end unshakable in one's determination, be provided with an annular groove, fill sealing ring or sealed solid filler [53] in described groove, the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.
8. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: on the inboard mating surface of guide rail bearing [51], be provided with an annular groove, fill sealing ring or sealed solid filler [53] in described groove, the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.
9. according to the magnetic holding solenoid valve of claim 1 regulation, it is characterized in that: a stuffing-box housing [57] fixes the outside top in described guide rail bearing [51], fill sealing ring or sealed solid filler [53] in stuffing-box housing [57], the sealing load that constitutes thus between described moving iron core and the described guide rail bearing is the sealing device that is slidingly matched of 1-5Kpa.
10. according to claim 1,4 magnetic holding solenoid valves of stipulating, it is characterized in that: at the bottom of the cylinder of described side magnetic yoke [4], upper magnet yoke [1] and cored screw [15] be provided with through wires hole [37], described electromagnetic valve coil DZF draw that lead is derived thus and with encapsulant 17 with itself and described magnetic holding solenoid valve seal isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001307789A CN1297780C (en) | 1998-01-23 | 1998-01-23 | Magnetic latching solenoid valve for safe protection device of combustion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001307789A CN1297780C (en) | 1998-01-23 | 1998-01-23 | Magnetic latching solenoid valve for safe protection device of combustion equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111838 Division CN1073700C (en) | 1997-01-24 | 1998-01-23 | Preparation method for flame sensor and combustion utensile safety protector |
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| Publication Number | Publication Date |
|---|---|
| CN1341825A true CN1341825A (en) | 2002-03-27 |
| CN1297780C CN1297780C (en) | 2007-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001307789A Expired - Fee Related CN1297780C (en) | 1998-01-23 | 1998-01-23 | Magnetic latching solenoid valve for safe protection device of combustion equipment |
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| CN (1) | CN1297780C (en) |
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| CN87206281U (en) * | 1987-04-08 | 1987-12-30 | 肖建平 | Dual-purpose safety kitchen range for cooking and heating water |
| CN1028575C (en) * | 1989-09-05 | 1995-05-24 | 张凡 | Magnetic holding type tractive electromagnet and control circuit thereof |
| CN2125782U (en) * | 1992-01-14 | 1992-12-23 | 轻工业部自动化仪表科学研究所 | Double-winding gas-range extinction protective device |
| CN2177199Y (en) * | 1992-07-14 | 1994-09-14 | 重庆峡江通用设备工业公司 | Ionization extinction protector for household gas burning quick-acting water heater |
| KR100193471B1 (en) * | 1996-06-05 | 1999-06-15 | 구자홍 | Safety shutoff device for gas burner |
-
1998
- 1998-01-23 CN CNB001307789A patent/CN1297780C/en not_active Expired - Fee Related
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| CN103026139A (en) * | 2010-08-06 | 2013-04-03 | Bsh博世和西门子家用电器有限公司 | Multiregulating appliance for gas appliances |
| CN102568734A (en) * | 2012-03-26 | 2012-07-11 | 无锡隆盛科技有限公司 | Flux concentrating ring |
| CN104565391A (en) * | 2014-12-31 | 2015-04-29 | 瑞安市东方阀门有限公司 | Anti-vibration solenoid valve |
| CN104565391B (en) * | 2014-12-31 | 2017-05-24 | 浙江亿斯特阀门有限公司 | Anti-vibration solenoid valve |
| CN109114589A (en) * | 2017-06-23 | 2019-01-01 | 株式会社能率 | Burner |
| CN109114589B (en) * | 2017-06-23 | 2021-12-28 | 株式会社能率 | Combustion apparatus |
| CN110025877A (en) * | 2019-05-24 | 2019-07-19 | 苏州维伟思医疗科技有限公司 | A kind of novel defibrillation electric silica gel injection apparatus |
| CN110428989A (en) * | 2019-07-25 | 2019-11-08 | 国网宁夏电力有限公司检修公司 | Relay protector cooling device |
| CN110906383A (en) * | 2019-12-02 | 2020-03-24 | 珠海优特智厨科技有限公司 | Flame-out protection device and gas equipment |
| WO2021130020A1 (en) * | 2019-12-24 | 2021-07-01 | BSH Hausgeräte GmbH | Solenoid valve and gas cooktop |
| ES2921248R1 (en) * | 2019-12-24 | 2022-10-26 | Bsh Hausgeraete Gmbh | SOLENOID VALVE AND COOKING GAS |
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| Publication number | Publication date |
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| CN1297780C (en) | 2007-01-31 |
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Address after: 518034 Shenzhen City, Guangdong province Futian District Hongli West Road Municipal compound 29, 301 Patentee after: Zhang Fan Address before: 610081 No. 23, No. 63, Zhang Jia alley, Chengdu, Sichuan, Jinniu District Patentee before: Zhang Fan |
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