CN201047976Y - Refrigerator gate alarm - Google Patents
Refrigerator gate alarm Download PDFInfo
- Publication number
- CN201047976Y CN201047976Y CNU200720084963XU CN200720084963U CN201047976Y CN 201047976 Y CN201047976 Y CN 201047976Y CN U200720084963X U CNU200720084963X U CN U200720084963XU CN 200720084963 U CN200720084963 U CN 200720084963U CN 201047976 Y CN201047976 Y CN 201047976Y
- Authority
- CN
- China
- Prior art keywords
- contact
- circuit
- contacts
- switch
- door
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to an energy saving device for an electrical apparatus, in particular to an alarm for a refrigerator door, which comprises a circuit part and contacts connected by a spring; wherein, a part of the circuit is formed by connecting a power supply, a switch S, two parallel branches and a resistance R in series and in order. In a parallel part, a switch S1 is connected with a resistance R1 in series and then connected with a buzzer H in parallel; two contacts are respectively led out from the current input terminal of the resistance R and the current input terminal of the switch S so as to form a contact 1; a b part of the circuit is a wire and the wire is connected with the two contacts, and the two contacts form a contact 2. The resistances of various devices correspond to the relationship that: R1 is smallest than RA, wherein, RA is equal to R. The utility model has the advantages that the energy saving device for electrical apparatus has simple principle and small size, but is convenient and practical, and the configuration of the resistances of various devices in the circuit ensures that the power of the device is minimum when the refrigerator door is closed.
Description
Technical field
The utility model belongs to the electric appliance energy-saving device, specifically a kind of energy-conservation alarm of door of refrigerator.
Background technology
Refrigerator is the electrical equipment that has of every household almost, and a kind of situation that often occurs in the use is, door is not closed tight after opening door of refrigerator, so that cooling gas leakage, compressor operating time lengthening expended a large amount of electric energy, and the user is entirely ignorant of.
The utility model content
The purpose of this utility model is the warning device of a kind of door of refrigerator of design, reports to the police automatically after the door of refrigerator is opened a period of time, and the prompting user closes door tight, avoids unnecessary waste of energy.
The technical solution of the utility model is: the door of refrigerator alarm comprises circuit part and the contact that is connected by spring.Wherein, a of circuit part is composed in series successively by power supply, switch S, two parallel branches and resistance R, in the part in parallel, and switch S ' same resistance R
1After the series connection, in parallel with hummer H again; The electric current of R flows into the electric current outflow end of end and S and draws two contacts respectively, constitutes contact 1; The b of circuit partly is a lead, and lead connects two contacts, and this two contact constitutes contact 2.The resistor satisfied relation of each device: R
1＜＜R
H=R.
Described door of refrigerator alarm, its contact is connected on the circuit structure of casing and door by spring.
Advantage of the present utility model is that principle of device is simple, volume is small and exquisite, but convenient, practical; The configuration of the resistance of each device in the circuit makes when door of refrigerator is closed, device electric power minimum.
Description of drawings
Fig. 1 is the device appearance synoptic diagram;
Fig. 2 is device circuit figure;
Embodiment
The utility model embodiment:
As Fig. 2, a of circuit part is composed in series successively by power supply, switch S, two parallel branches and resistance R.In the part in parallel, switch S ' same resistance R
1Series connection, in parallel with hummer H again.The electric current of R flows into the electric current outflow end of end and S and draws two contacts respectively, constitutes contact 1; The b of circuit partly is a lead, and lead connects two contacts, and this two contact constitutes contact 2.The resistor satisfied relation of each device: R
1＜＜R
H=R.R takes according to the resistance of the hummer of practical application.Closed S has then started this device.When door of refrigerator was closed, contact 1 contacted with contact 2, and hummer H is by the lead short circuit of b circuit; When door of refrigerator was opened, separated with contact 2 contact 1, and this moment, hummer H was by R
1Short circuit, delay switch picks up counting, and predetermined a period of time finishes back (for example 1 minute), and S ' disconnects, and hummer H reports to the police.
As Fig. 1, a of device, b partly are separately fixed on casing and the door, connect each contact by spring.
Claims (2)
1. the door of refrigerator alarm comprises circuit part and the contact that is connected by spring, it is characterized in that: a of circuit part is composed in series successively by power supply, switch S, two parallel branches and resistance R, in the part in parallel, and switch S ' same resistance R
1After the series connection, in parallel with hummer H again; The electric current of R flows into the electric current outflow end of end and S and draws two contacts respectively, constitutes contact 1; The b of circuit partly is a lead, and lead connects two contacts, and this two contact constitutes contact 2, the resistor satisfied relation of each device: R
1＜＜R
H=R.
2. door of refrigerator alarm according to claim 1 is characterized in that: the contact is connected on the circuit structure of casing and door by spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720084963XU CN201047976Y (en) | 2007-05-29 | 2007-05-29 | Refrigerator gate alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720084963XU CN201047976Y (en) | 2007-05-29 | 2007-05-29 | Refrigerator gate alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047976Y true CN201047976Y (en) | 2008-04-16 |
Family
ID=39300566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720084963XU Expired - Fee Related CN201047976Y (en) | 2007-05-29 | 2007-05-29 | Refrigerator gate alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047976Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895473A (en) * | 2015-06-10 | 2015-09-09 | 常州机电职业技术学院 | Automatic reminding safety door |
-
2007
- 2007-05-29 CN CNU200720084963XU patent/CN201047976Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895473A (en) * | 2015-06-10 | 2015-09-09 | 常州机电职业技术学院 | Automatic reminding safety door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201047976Y (en) | Refrigerator gate alarm | |
| CN101980405B (en) | Multi-purpose time delay power supply socket manufactured by using time base circuit | |
| CN201465822U (en) | Energy-saving switch | |
| CN204358800U (en) | Based on the intelligent electromagnetic oven of Internet of Things | |
| CN204089765U (en) | A kind of single live wire contact witch | |
| CN201533074U (en) | Intelligent power saving socket | |
| CN201314759Y (en) | Refrigerator with door-opening voice prompting function | |
| CN201706844U (en) | Mechanical temperature-controlled overtemperature alarming refrigerating cabinet/refrigerator | |
| CN201845967U (en) | Multipurpose time-delay power socket manufactured by time-base circuit | |
| CN203299351U (en) | Portable alkaline battery testing device | |
| CN202856098U (en) | Electromagnetic clockwork spring type automatic power-off socket | |
| CN207069208U (en) | A kind of smart jack | |
| CN105606886A (en) | Collection device of electricity consumption information and multiple-electrical-appliance separation recognition method | |
| CN205070961U (en) | Time switch circuit of low -power consumption for electric light | |
| CN201503481U (en) | Multifunctional durable experiment table for starting dynamo | |
| CN202815620U (en) | Integrated circuit based temperature-frequency transformation type temperature controller | |
| CN204045526U (en) | A kind of automatic switching-on device for old-fashioned circuit breaker | |
| CN201490496U (en) | Novel timing socket | |
| CN209217444U (en) | A kind of lead switching circuit | |
| CN201859328U (en) | Energy-saving switching device | |
| CN205609007U (en) | Non - code infrared remote control switch | |
| CN202797502U (en) | Computer power socket with alarm function | |
| CN103383436B (en) | A kind of Portable alkaline battery proving installation | |
| CN200969294Y (en) | Switch for automatic break circuit of power failure and socket thereof | |
| CN2694580Y (en) | Circuit break warning equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 |