CN204006923U - A kind of automatic close device of refrigerator - Google Patents
A kind of automatic close device of refrigerator Download PDFInfo
- Publication number
- CN204006923U CN204006923U CN201420311646.7U CN201420311646U CN204006923U CN 204006923 U CN204006923 U CN 204006923U CN 201420311646 U CN201420311646 U CN 201420311646U CN 204006923 U CN204006923 U CN 204006923U
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- Prior art keywords
- switch
- electromagnet
- effect transistor
- field
- cascaded
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Abstract
A refrigerator door engine, belongs to an electro-technical field.Comprise diode, electric capacity, variable resistor, switch and power supply, touch-switch, field-effect transistor, a plurality of electromagnet being cascaded, and a plurality of magnetizable metal parts corresponding with a plurality of electromagnet and the jacking block corresponding with described touch-switch; Wherein, described touch-switch is connected with diode with after Capacitance parallel connection again and is received the grid of field-effect transistor, the drain electrode of described field-effect transistor is connected with one end of a plurality of electromagnet coil wires that are cascaded, the other end of the plurality of electromagnet coil being cascaded is connected with positive source through switch, the source electrode of described field-effect transistor is connected with power cathode, one end that described touch-switch is connected with described diode is connected with positive source by variable resistor, and the other end of described touch-switch is connected with described power cathode.The utility model is simple in structure, has good automatic detection the function of closing refrigerator door.
Description
Technical field
The utility model relates to an electro-technical field, specifically relates to a kind of door engine of refrigerator.
Background technology
In refrigerator use procedure; the situation that often there will be refrigerator doors not close tight; thereby cause freezer compressor long time running; energy consumption increases; cause refrigerator parts to damage; refrigerator doors is not closed tight for a long time and also can be caused refrigerator weakening even to lose its due fresh-keeping function in addition, makes food in refrigerator accelerate putrid and deteriorated.
China Patent Publication No.: CN202534116U, Granted publication day: on November 14th, 2012, it is as follows that name is called the disclosed information of the utility model of " a kind of alert circuit of closing the door ": a kind of alert circuit of closing the door, comprise permanent magnet, open type tongue tube, diode, electric capacity, IC integrated chip, triode, loudspeaker, resistance, switch enclosure power supply, described tongue tube is fixed on the doorframe of door the inside, and corresponding with the permanent magnet on edge, door leaf top.When door is closed, tongue tube is subject to the effect electric shock adhesive in magnetic field, and electric capacity is by short circuit, and loudspeaker does not ring, and when door is opened, reed switch contact disconnects, capacitor charging, and after electricity fills enough, loudspeaker sends the voice message of closing the door.Technique scheme is applied widely, can be used for the prompting of closing the door of air conditioner refrigerator, but this technical scheme only possesses the prompt facility of closing the door, and does not possess the function of automatic door-closing.
Summary of the invention
The purpose of this utility model is to fit badly for current refrigerator door, easily cause freezer compressor long time running, energy consumption increases, cause refrigerator parts to damage, and cause defect and deficiency that refrigerator can not be for a long time fresh-keeping, provide a kind of and can automatically identify whether refrigerator doors is closed tight and the device of automatic door-closing, in order to reduce the unnecessary energy consumption of refrigerator, extend the life-span of refrigerator, guarantee the clean of refrigerator inside, guarantee the fresh-keeping function of refrigerator, and the work that reduces people, people's quality of life at home improved.
For achieving the above object, technical solution of the present utility model is:
A kind of refrigerator door engine, comprise diode, electric capacity, variable resistor, switch and power supply, touch-switch, field-effect transistor, a plurality of electromagnet being cascaded, and a plurality of magnetizable metal parts corresponding with a plurality of electromagnet and the jacking block corresponding with described touch-switch; Wherein, described touch-switch is connected with diode with after Capacitance parallel connection again and is received the grid of field-effect transistor, the drain electrode of described field-effect transistor is connected with one end of a plurality of electromagnet coil wires that are cascaded, the other end of the plurality of electromagnet coil being cascaded is connected with positive source through switch, the source electrode of described field-effect transistor is connected with power cathode, one end that described touch-switch is connected with described diode is connected with positive source by variable resistor, and the other end of described touch-switch is connected with described power cathode.
Further, described touch-switch be arranged in refrigerator doors the inside with the door near door handle along on corresponding perpendicular doorframe, described jacking block correspondence is arranged on door leaf; A plurality of electromagnet are cascaded by winding wire, and described electromagnet is arranged on the horizontal doorframe and the perpendicular doorframe corresponding with door handle of refrigerator doors the inside, and described magnetizable metal part correspondence is arranged on door leaf.
Compared with prior art, the beneficial effects of the utility model are:
1. the utility model is simple in structure, reasonable in design, easy for installation, has good automatic detection the function of closing refrigerator door;
2. the utility model, by arrange a plurality of electromagnet on the horizontal doorframe of refrigerator, also can close voluntarily refrigerator when opening is larger, has good automatic closing function.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present utility model;
Fig. 2 is the schematic diagram of the utility model while being placed on refrigerator;
In figure, touch-switch S1, diode VD, capacitor C, field-effect transistor N-MOSFET, electromagnet YA, variable resistor R, switch S 2, power supply VCC, magnetizable metal part 1,, jacking block 2.
The specific embodiment
Below in conjunction with accompanying drawing explanation and specific embodiment mode, the utility model is described in further detail.
Referring to Fig. 1, a kind of refrigerator door engine, comprise diode VD, capacitor C, variable resistor R, switch S 2 and power supply VCC, touch-switch S1, field-effect transistor N-MOSFET, a plurality of electromagnet YA being cascaded, and a plurality of magnetizable metal parts 1 corresponding with a plurality of electromagnet YA and the jacking block 2 corresponding with described touch-switch S1, wherein, described touch-switch S1 connects with diode VD with after capacitor C parallel connection again and receives the grid of field-effect transistor N-MOSFET, the drain electrode of described field-effect transistor N-MOSFET is connected with one end of a plurality of electromagnet YA winding wires that are cascaded, the other end of the plurality of electromagnet YA coil being cascaded is connected with power supply VCC is anodal through switch S 2, the source electrode of described field-effect transistor N-MOSFET is connected with power supply VCC negative pole, one end that described touch-switch S1 is connected with described diode VD is connected by variable resistor R and power supply VCC are anodal, the other end of described touch-switch S1 is connected with described power supply VCC negative pole.
Referring to Fig. 2, described touch-switch S1 be arranged in refrigerator doors the inside with the door near door handle along on corresponding perpendicular doorframe, described jacking block 1 correspondence is arranged on door leaf; A plurality of electromagnet YA are cascaded by winding wire, and described electromagnet YA is arranged on the horizontal doorframe and the perpendicular doorframe corresponding with door handle of refrigerator doors the inside, and described magnetizable metal part 1 correspondence is arranged on door leaf.
Operation principle of the present utility model is: switch S 2 is all in on-state at ordinary times, when refrigerator doors is not closed tight, jacking block 2 is away from described touch-switch S1, the contact of described touch-switch S1 inside disconnects by the elasticity of self, now power supply VCC charges to capacitor C, when the level in capacitor C reaches certain numerical value, diode VD is switched on, thereby give high level of grid of field-effect transistor N-MOSFET, the high level of this grid is controlled described field-effect transistor N-MOSFET conducting, thereby make the electromagnet YA work being cascaded with described field-effect transistor N-MOSFET, electromagnet YA attracts the magnetizable metal part 1 of setting corresponding to it that refrigerator doors is closed tight.
When refrigerator doors is closed tight, be arranged at the jacking block 2 compressing described touch-switch S1 corresponding with described touch-switch S1 of doorframe place in refrigerator doors, make two contactings of touch-switch S inside, cause C two terminal shortcircuits, the charging charge at capacitor C two ends is bled off fast, field-effect transistor N-MOSFET disconnects, and electromagnet YA quits work, and circuit enters the marquis's state of keeping.
In addition, by adjust the resistance of adjustable resistance R can change open the door after electromagnet time of starting working, when the resistance of adjustable resistance R is larger, the charging of capacitor C is slower, electromagnet YA can start working in time delay again, as dislike this door engine reaction too fast, and can suitably tune up the resistance of variable resistor R, delay the start-up time of door engine.
Above content is the further description of the utility model being done in conjunction with the specific embodiment; can not think that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; the simple replacement of making, all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. a refrigerator door engine, comprise diode (VD), electric capacity (C), variable resistor (R), switch (S2) and power supply (VCC), it is characterized in that: also comprise touch-switch (S1), field-effect transistor (N-MOSFET), a plurality of electromagnet being cascaded (YA), and a plurality of magnetizable metal parts (1) corresponding with a plurality of electromagnet (YA) and the jacking block (2) corresponding with described touch-switch (S1), wherein, described touch-switch (S1) is connected with diode (VD) with after electric capacity (C) parallel connection again and is received the grid of field-effect transistor (N-MOSFET), the drain electrode of described field-effect transistor (N-MOSFET) is connected with one end of a plurality of electromagnet that are cascaded (YA) winding wire, the other end of the plurality of electromagnet being cascaded (YA) coil is connected through switch (S2) and power supply (VCC) positive pole, the source electrode of described field-effect transistor (N-MOSFET) is connected with power supply (VCC) negative pole, one end that described touch-switch (S1) is connected with described diode (VD) is connected by variable resistor (R) and power supply (VCC) are anodal, the other end of described touch-switch (S1) is connected with described power supply (VCC) negative pole.
2. a kind of refrigerator door engine according to claim 1, is characterized in that: described touch-switch (S1) be arranged in refrigerator doors the inside with the door near door handle along on corresponding perpendicular doorframe, described jacking block (1) correspondence is arranged on door leaf; A plurality of electromagnet (YA) are cascaded by winding wire, and described electromagnet (YA) is arranged on the horizontal doorframe and the perpendicular doorframe corresponding with door handle of refrigerator doors the inside, and described magnetizable metal part (1) correspondence is arranged on door leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311646.7U CN204006923U (en) | 2014-06-12 | 2014-06-12 | A kind of automatic close device of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420311646.7U CN204006923U (en) | 2014-06-12 | 2014-06-12 | A kind of automatic close device of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204006923U true CN204006923U (en) | 2014-12-10 |
Family
ID=52046912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420311646.7U Expired - Fee Related CN204006923U (en) | 2014-06-12 | 2014-06-12 | A kind of automatic close device of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204006923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726715A (en) * | 2017-10-30 | 2018-02-23 | 南宁市浩发科技有限公司 | Refrigerator doors fasten system automatically |
| CN110952873A (en) * | 2019-12-18 | 2020-04-03 | 潘承燕 | Refrigerator is with automatic door closing device based on capacitance variation |
-
2014
- 2014-06-12 CN CN201420311646.7U patent/CN204006923U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107726715A (en) * | 2017-10-30 | 2018-02-23 | 南宁市浩发科技有限公司 | Refrigerator doors fasten system automatically |
| CN110952873A (en) * | 2019-12-18 | 2020-04-03 | 潘承燕 | Refrigerator is with automatic door closing device based on capacitance variation |
| CN110952873B (en) * | 2019-12-18 | 2021-08-27 | 宁夏迎福食品科技有限公司 | Refrigerator is with automatic door closing device based on capacitance variation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150612 |
|
| EXPY | Termination of patent right or utility model |