CN101818825A - Bi-stable pulse electromagnetic valve and refrigerator - Google Patents
Bi-stable pulse electromagnetic valve and refrigerator Download PDFInfo
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- CN101818825A CN101818825A CN 201010149809 CN201010149809A CN101818825A CN 101818825 A CN101818825 A CN 101818825A CN 201010149809 CN201010149809 CN 201010149809 CN 201010149809 A CN201010149809 A CN 201010149809A CN 101818825 A CN101818825 A CN 101818825A
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- electromagnetic valve
- piezoresistance
- pulse electromagnetic
- stable pulse
- thermistor
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Abstract
The invention discloses a bi-stable pulse electromagnetic valve, which is used for controlling a circulating path of a refrigerant in a refrigerating system and comprises a magnet exciting coil and a valve body component. The magnet exciting coil of the prior art comprises a coil winding, a thermistor and a current connecting insert. When the electromagnetic valve of the prior art is struck by lightning and disturbed by external high-voltage pulse during use, the magnet exciting coil of the electromagnetic valve produces instantaneous electromagnetic pulse magnetic fields so that error reversion produced by a core iron in the valve body component or vibration noise produced by unreliable core iron motion seriously affects the using reliability of the electromagnetic valve. The magnet exciting coil is connected in parallel with a voltage dependent resistor so as to radically solve the problem that the electromagnetic valve produces the error reversion or the vibration noise when the electromagnetic valve is struck by lightning and disturbed by the external high-voltage pulse and ensure the reliability of a product in the system.
Description
Technical field
The present invention is applied to the control solenoid valve of refrigeration agent circulation path in a kind of refrigeration system, as is used for the bi-stable pulse electromagnetic valve of refrigerator control refrigerant circulation path.
Background technique
A kind of bi-stable pulse electromagnetic valve that is used for the control of refrigeration system refrigeration agent circulation path, it comprises field coil and valve body parts.A kind of bi-stable pulse electromagnetic valve that following mask body is used with refrigerator elaborates its structure and working principle:
Valve body parts comprises the valve seat of the both sides that the big sleeve pipe made by the thin walled tube of non-magnetic material and two ends are made by magnetic conductive material, in big sleeve pipe, have again a thin walled tube that make with small casing big sleeve pipe arranged coaxial, mangetic core assembly can move back and forth in small casing, radially both sides are provided with a pair of homopolarity permanent magnet opposed between big sleeve pipe and small casing, the magnetic field that permanent magnet produces makes mangetic core assembly and a valve seat valve port of adhesive reach effective adhesive and maintenance, realizes " not having electric self-locking ".Field coil comprises coil winding, thermistor is connected inserted sheet with electric current, thermistor is serially connected in coil winding and is connected between the inserted sheet with electric current, when needs change refrigerant flow direction, pass to instantaneous reverse dc pulse current to field coil, field coil is produced in valve pocket with permanent magnet make the reverse pulsed magnet field of mangetic core assembly polar flux, the actuating valve core assembly moves to opposite side, reach effective applying with the valve seat valve port of opposite side, the field coil dead electricity is that magnetic field disappears, magnetic flux and valve seat that mangetic core assembly then relies on the permanent magnet of valve pocket both sides to produce keep stable state, realize the commutation of refrigeration agent circulation path.
When the bi-stable pulse electromagnetic valve of said structure in use suffers thunderbolt, external high voltage Flutter, to produce the transient electromagnetic pulsed magnet field in the field coil of solenoid valve, and make the interior core iron action of valve body parts and cause that mistake commutation or core iron move unreliable and vibration noise generation.Therefore, make the use of solenoid valve more reliable, and to make solenoid valve when being arranged, the abnormal pulsers voltge surge can proper functioning be the problem that those skilled in the art will urgently solve still.
Summary of the invention
The object of the invention is to provide a kind of and in use suffers thunderbolt, during the external high voltage Flutter, can not produce misoperation or vibration noise, and simple in structure, easily manufactured, bi-stable pulse electromagnetic valve cheaply.
The present invention adopts following technological scheme for this reason:
Bi-stable pulse electromagnetic valve of the present invention, comprise field coil and valve body parts, described field coil comprises coil winding, described bi-stable pulse electromagnetic valve also comprises piezoresistance, thermistor, the circuit at described piezoresistance and described coil winding place is connected in parallel, and described thermistor is connected in series with the circuit at described coil winding place or is connected in series with combinational circuit after described piezoresistance is in parallel with the circuit at described coil winding place.
As the further of technique scheme improved and replenish, so that adopt multiple structural type in the specific implementation, the present invention also comprises following technical characteristics:
Particularly, the circuit at described piezoresistance elder generation and described coil winding place is connected in parallel, and the circuit after being connected in parallel then is connected in series with described thermistor again.
Particularly, described coil winding and described thermistor are connected in series, and the circuit after being connected in series then is connected in parallel with described piezoresistance again.
Particularly, described piezoresistance, thermistor comprise and are fixed in the described field coil.
Further, described piezoresistance, thermistor are respectively more than 1 or 2.
Further, the ratio of the voltage rating of pressure sensitive voltage of described piezoresistance (or being called switching voltage) and described coil winding is between 2-3 times.The pressure sensitive voltage of described piezoresistance (or being called switching voltage) is meant the voltage that the piezoresistance two ends produced when described piezoresistance was led to the 1mA direct current (d.c.).
Preferentially, the ratio of the voltage rating of pressure sensitive voltage of described piezoresistance (or being called switching voltage) and described coil winding is between 2-2.5 times.
Preferentially, the pressure sensitive voltage of described piezoresistance (or being called switching voltage) is 2.2 times of voltage rating of described coil winding power supply.
Particularly, at voltage rating is the bi-stable pulse electromagnetic valve of 220V, the pressure sensitive voltage of pairing piezoresistance (or being called switching voltage) is between the 440-660V, and the coil winding of effective supply solenoid valve is to the DC pulse of voltage rating behind over commutation of input, and the voltage rating of coil winding refers in the voltage rating without the input power supply before the over commutation in this patent file.Preferentially, the pressure sensitive voltage of pairing piezoresistance (or being called switching voltage) is between the 440-550V.
Further, described thermistor is the thermistor of positive temperature coefficient, between thermally sensitive temperature (or being called switch temperature) is 65-85 ℃.
Particularly, be under the situation of 220V at the voltage rating of the power supply of field coil, the specified zero-power resistance of described thermistor is between the 200-300 Ω.The specified zero-power resistance of described thermistor is meant the zero power resistance that records under 25 ± 2 ℃ environment.
In addition, described piezoresistance can also be connected described field coil outside, and this can reach purpose of the present invention equally.
The present invention also comprises a kind of refrigerator, comprises any bi-stable pulse electromagnetic valve of foregoing invention.
The present invention comprises another kind of refrigerator equally, comprise bi-stable pulse electromagnetic valve, also comprise piezoresistance, the circuit at the bi-stable pulse electromagnetic valve coil winding place of described piezoresistance and described prior art is connected in parallel, and just directly the power supply of the bi-stable pulse electromagnetic valve of the prior art on refrigerator is imported two ends cross-over connection piezoresistance.Above-mentioned any and connect piezoresistance after refrigerator, can avoid the noise or the anomaly that cause owing to the external high voltage Flutter, improve the stability and the reliability of refrigerator proper functioning.
The invention has the beneficial effects as follows: by improvement innovation field coil, compared with prior art, have that the solenoid valve of making in use is struck by lightning or during the external high voltage Flutter, can not produce misoperation or vibration noise, improve the advantages such as reliability of solenoid valve.
Description of drawings:
Fig. 1: be the electrical block diagram of the solenoid valve field coil of prior art;
Fig. 2: be the electrical block diagram of the solenoid valve field coil of prior art;
Fig. 3: be bi-stable pulse electromagnetic valve first embodiment's of the present invention field coil circuit structural representation;
Fig. 4: be bi-stable pulse electromagnetic valve first embodiment's of the present invention excitation coil structure schematic representation;
Fig. 5: be bi-stable pulse electromagnetic valve second embodiment's of the present invention field coil circuit structural representation;
Fig. 6: be bi-stable pulse electromagnetic valve second embodiment's of the present invention excitation coil structure schematic representation.
Symbol description among the figure:
1-field coil, 11-coil winding, 12-electric current connect inserted sheet, 13-thermistor,
The 14-piezoresistance.
Embodiment
In order to make those skilled in the art person understand this programme better, be described in further detail below in conjunction with drawings and embodiments.
Bi-stable pulse electromagnetic valve mainly comprises field coil 1 and valve body parts.Field coil 1 suit also is fixed on the excircle of valve body parts, field coil and valve body parts acting in conjunction realize the control of solenoid valve to refrigeration agent circulation path in the refrigeration system, the concrete working principle of solenoid valve is existing in background technique to be introduced in detail, does not repeat them here.
Fig. 3 is first embodiment of bi-stable pulse electromagnetic valve of the present invention, is specially the electrical block diagram of field coil, and this schematic representation only shows part related to the present invention, and other partly do not draw.As shown in the figure, successively an end of power supply being connected inserted sheet 12 by an electric current is connected inserted sheet 12 with another electric current of thermistor-coil winding 11-and is connected in series, this moment, thermistor 13 was serially connected in combinational circuit with coil winding 11, two ends at combinational circuit be connected with the two ends of piezoresistance 14 respectively (being that combinational circuit and piezoresistance are connected in parallel), simultaneously, the two ends of piezoresistance 14 are connected inserted sheet with two electric currents respectively to be connected, as shown in Figure 4, piezoresistance comprises and is fixed on the field coil of bistable electromagnetic valve that Fig. 4 is the structural representation of first embodiment of the present invention field coil.The another kind of mode of present embodiment just directly connects the piezoresistance that end span between inserted sheet connects corresponding specification at two electric currents of the bi-stable pulse electromagnetic valve on the refrigerator, can realize the purpose of this invention equally.
Fig. 5 is the electrical block diagram of second embodiment's of bi-stable pulse electromagnetic valve of the present invention field coil, the two ends of coil winding 11 are connected with the two ends of piezoresistance 14 as shown in the figure, be connected in parallel into combinational circuit, successively an electric current being connected inserted sheet 12-thermistor-combinational circuit-another electric current connection inserted sheet 12 then is connected in series, Fig. 6 is the structural representation of second embodiment of the present invention field coil, and piezoresistance as shown in the figure is fixed in the field coil of solenoid valve of the present invention.
Bi-stable pulse electromagnetic valve of the present invention had both comprised that voltage rating was the solenoid valve of 220V, comprised that also voltage rating is the solenoid valve of 110V and other each grade voltages.Voltage rating is the solenoid valve of 110V and the piezoresistance that connects corresponding specification, and promptly the pressure sensitive voltage of piezoresistance (or being called switching voltage) is between 220-330V, and preferentially, the pressure sensitive voltage of piezoresistance (or being called switching voltage) is between 220-275V.
Simultaneously, the also claimed refrigerator that uses above-mentioned bi-stable pulse electromagnetic valve of the present invention.This refrigerator can prevent the accidental shock of abnormal voltage such as thunder and lightning or the high-voltage pulse electricity of system like this, and can not produce misoperation, so also can not produce the noise that causes because of misoperation.The present invention can also improve use in the current refrigerator system in addition, as long as in the circuit of existing solenoid valve, installs a piezoresistance additional, makes being connected in parallel around figure winding place circuit of itself and solenoid valve, and this can reach purpose of the present invention equally.
Only open circuit diagram and the structural representation relevant of accompanying drawing in this patent file with the present invention.
Claims (11)
1. bi-stable pulse electromagnetic valve, comprise field coil (1) and valve body parts, described field coil (1) comprises coil winding (11), it is characterized in that: described bi-stable pulse electromagnetic valve also comprises piezoresistance (14), thermistor (13), the circuit at described piezoresistance (14) and described coil winding place is connected in parallel, and described thermistor (13) is connected in series with the circuit at described coil winding place or is connected in series with combinational circuit after described piezoresistance (14) is in parallel with the circuit at described coil winding place.
2. bi-stable pulse electromagnetic valve according to claim 1 is characterized in that, described piezoresistance (14) elder generation is connected in parallel with the circuit at described coil winding place, and the circuit after being connected in parallel then is connected in series with described thermistor (13) again.
3. bi-stable pulse electromagnetic valve according to claim 1 is characterized in that, described coil winding and described thermistor (13) are connected in series, and the circuit after being connected in series then is connected in parallel with described piezoresistance (13) again.
4. according to the wherein arbitrary described bi-stable pulse electromagnetic valve of claim 1,2,3, it is characterized in that described piezoresistance (14), thermistor (13) comprise and be fixed in the described field coil (1).
5. bi-stable pulse electromagnetic valve according to claim 4 is characterized in that, described piezoresistance (14), thermistor (13) are respectively more than 1 or 2.
6. according to the wherein arbitrary described bi-stable pulse electromagnetic valve of claim 1,2,3, it is characterized in that the ratio of the voltage rating of pressure sensitive voltage of described piezoresistance (14) (or being called switching voltage) and described coil winding is between 2-3 times.
7. bi-stable pulse electromagnetic valve according to claim 6 is characterized in that, the ratio of the voltage rating of pressure sensitive voltage of described piezoresistance (14) (or being called switching voltage) and described coil winding is between 2-2.5 times.
8. according to the wherein arbitrary described bi-stable pulse electromagnetic valve of claim 1,2,3, it is characterized in that, between the thermally sensitive temperature of described thermistor (13) (or being called switch temperature) is 65-85 ℃.
9. according to the wherein arbitrary described bi-stable pulse electromagnetic valve of claim 1,2,3,5,7, it is characterized in that described piezoresistance (14) is connected described field coil (1) outside.
10. a refrigerator comprises the described bi-stable pulse electromagnetic valve of above-mentioned arbitrary claim.
11. a refrigerator comprises bi-stable pulse electromagnetic valve, it is characterized in that also comprising a piezoresistance, the circuit at the coil winding place at described piezoresistance and described bi-stable pulse electromagnetic valve place is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010149809 CN101818825A (en) | 2010-04-14 | 2010-04-14 | Bi-stable pulse electromagnetic valve and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010149809 CN101818825A (en) | 2010-04-14 | 2010-04-14 | Bi-stable pulse electromagnetic valve and refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN101818825A true CN101818825A (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010149809 Pending CN101818825A (en) | 2010-04-14 | 2010-04-14 | Bi-stable pulse electromagnetic valve and refrigerator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949471A (en) * | 2010-09-02 | 2011-01-19 | 苏州协昌环保科技有限公司 | Explosionproof electromagnetic pulse valve assembly |
| CN111022741A (en) * | 2019-06-05 | 2020-04-17 | 江门市甜的电器有限公司 | Solenoid valve coil assembly |
| CN111853246A (en) * | 2019-04-30 | 2020-10-30 | 江门市甜的电器有限公司 | Water inlet electromagnetic valve and implementation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2389286Y (en) * | 1999-07-30 | 2000-07-26 | 徐志胜 | Electric lamp with overvoltage protective function |
| CN2567845Y (en) * | 2002-09-11 | 2003-08-20 | 深圳市鹏科兴实业有限公司 | Overcurrent overvoltage protector |
| CN2670703Y (en) * | 2003-08-29 | 2005-01-12 | 王群辉 | Bistable two position and three way impulse solenoid valve |
-
2010
- 2010-04-14 CN CN 201010149809 patent/CN101818825A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2389286Y (en) * | 1999-07-30 | 2000-07-26 | 徐志胜 | Electric lamp with overvoltage protective function |
| CN2567845Y (en) * | 2002-09-11 | 2003-08-20 | 深圳市鹏科兴实业有限公司 | Overcurrent overvoltage protector |
| CN2670703Y (en) * | 2003-08-29 | 2005-01-12 | 王群辉 | Bistable two position and three way impulse solenoid valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949471A (en) * | 2010-09-02 | 2011-01-19 | 苏州协昌环保科技有限公司 | Explosionproof electromagnetic pulse valve assembly |
| CN111853246A (en) * | 2019-04-30 | 2020-10-30 | 江门市甜的电器有限公司 | Water inlet electromagnetic valve and implementation method |
| CN111853326A (en) * | 2019-04-30 | 2020-10-30 | 江门市甜的电器有限公司 | Alternating current low-power pilot-operated water inlet electromagnetic valve |
| CN111853326B (en) * | 2019-04-30 | 2022-04-01 | 江门市甜的电器有限公司 | Alternating current low-power pilot-operated water inlet electromagnetic valve |
| CN111853246B (en) * | 2019-04-30 | 2022-05-20 | 江门市甜的电器有限公司 | Water inlet electromagnetic valve and implementation method |
| CN111022741A (en) * | 2019-06-05 | 2020-04-17 | 江门市甜的电器有限公司 | Solenoid valve coil assembly |
| CN111022741B (en) * | 2019-06-05 | 2022-02-18 | 江门市甜的电器有限公司 | Solenoid valve coil assembly |
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Application publication date: 20100901 |