CN207555961U - A kind of electric heater with automatic temperature-control - Google Patents
A kind of electric heater with automatic temperature-control Download PDFInfo
- Publication number
- CN207555961U CN207555961U CN201721145442.0U CN201721145442U CN207555961U CN 207555961 U CN207555961 U CN 207555961U CN 201721145442 U CN201721145442 U CN 201721145442U CN 207555961 U CN207555961 U CN 207555961U
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- CN
- China
- Prior art keywords
- babinet
- electrically heated
- heated rod
- electric heater
- automatic temperature
- 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
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- Domestic Plumbing Installations (AREA)
Abstract
The utility model is related to a kind of electric heaters with automatic temperature-control, the electric heater is included for the babinet for storing water, the cold water inlet being connected with babinet, the outlet pipe being connected with babinet and the electrically heated rod being set in babinet, the electrically heated rod is connect with an external power supply, the anode of the external power supply is connect successively through a negative tempperature coefficient thermistor, an electromagnetic switch with the positive terminal of the electrically heated rod, the cathode of the negative pole end connection external power supply of the electrically heated rod；The thermistor is placed in the babinet；A float level meter for being used to measure water level in babinet is additionally provided in the babinet, be additionally provided with a solenoid valve, the solenoid valve and float level meter on the cold water inlet is electrically connected with a main control chip.The beneficial effects of the utility model are：By thermistor and electromagnetic switch cooperation control electrically heated rod, automatic temperature-control is realized.
Description
Technical field
The utility model is related to a kind of electric heaters with automatic temperature-control.
Background technology
Electric heater is living electric apparatus common in people's life, but it is about 45- that human body, which receives best water temperature range,
55 DEG C, electric heater also just constantly by various Insulations, ensures that leaving water temperature reaches this range（Certainly, if with
Except family oneself adjustment water temperature value）, but the mode of the traditional holding constant temperature of electric heater is exactly ceaselessly in water tank body
Cold water is added in, when the cold water of addition can not all meet the adjustment of temperature, then automatically powers off, is no longer heated, but work as water temperature
When dropping to below range, then continue to heat.
Invention content
The purpose of this utility model is to be directed to more than shortcoming, provides a kind of electric heater with automatic temperature-control,
Realize automatic temperature-control.
Scheme is used by the utility model solves technical problem：A kind of electric heater with automatic temperature-control, it is described
Electric heater include for store the babinet, the cold water inlet being connected with babinet, the outlet pipe being connected with babinet of water with
And the electrically heated rod in babinet is set to, the electrically heated rod is connect with an external power supply, and the anode of the external power supply is successively
It is connect through a negative tempperature coefficient thermistor, an electromagnetic switch with the positive terminal of the electrically heated rod, the electrically heated rod is born
The cathode of extreme connection external power supply；The thermistor is placed in the babinet；One is additionally provided in the babinet for surveying
The float level meter of water level in measuring tank body is additionally provided with a solenoid valve, the solenoid valve and float liquid level on the cold water inlet
Meter is electrically connected with a main control chip.
Further, the electrically heated rod is set to above the bottom of the babinet, and below the middle part of babinet.
Further, the babinet is equipped with a limit switch close to bottom position, and the float is equipped with and the limit
The bar of bit switch cooperation, the limit switch are electrically connected with the main control chip.
Further, the main control chip controls the solenoid valve through a relay.
Further, the main control chip is microcontroller.
Compared with prior art, the utility model has following advantageous effect：The variation of water temperature, root are detected by thermistor
Variation is sent according to the resistance value of the variation thermistor of water temperature, when water temperature raising reaches specific threshold A1, thermistor
Resistance value reduces, and flows into electric current in electromagnetic switch at this time and increases, and the electromagnet magnetic force increase in electromagnetic switch realizes that electromagnetic switch is broken
It opens, electrically heated rod stops heating, and when water temperature is reduced to specific threshold A2, the resistance value increase of thermistor flows into electromagnetism at this time
Electric current reduces in switch, and the magnetic force of electromagnet declines, and realizes and is closed electromagnetic switch, electrically heated rod is heated；Pass through temperature-sensitive
Resistance and electromagnetic switch cooperation control electrically heated rod, realize automatic temperature-control.
Description of the drawings
The utility model patent is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structure diagram of the utility model electric heater.
Fig. 2 is the thermoregulation circuit schematic diagram of the utility model electric heater.
Fig. 3 is the circuit control principle figure of the utility model electric heater.
In figure：1- babinets；2- cold water inlets；3- outlet pipes；4- electrically heated rods；5- float level meters；6- solenoid valves；
7- limit switches.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
As shown in Figures 1 to 3, a kind of electric heater with automatic temperature-control of the present embodiment, the electric heater include using
In the babinet 1 for storing water, the cold water inlet 2 being connected with babinet 1, the outlet pipe 3 being connected with babinet 1 and it is set to case
Electrically heated rod 4 in body 1, the electrically heated rod 4 are connect with an external power supply, and the anode of the external power supply is successively through a subzero temperature
Degree coefficient resistance, an electromagnetic switch are connect with the positive terminal of the electrically heated rod 4, and the negative pole end of the electrically heated rod 4 connects
Connect the cathode of external power supply；The thermistor is placed in the babinet 1；One is additionally provided in the babinet 1 for measuring case
The float level meter 5 of water level in body 1 is additionally provided with a solenoid valve 6, the solenoid valve 6 and float liquid level on the cold water inlet 2
Meter 5 is electrically connected with a main control chip.In Fig. 2, R is thermistor, and K is electromagnetic switch, and M is electrically heated rod 4.
From the foregoing, the beneficial effects of the utility model are：Pass through thermistor and electromagnetic switch cooperation control electricity
Heating rod 4 realizes automatic temperature-control.
In the present embodiment, the electrically heated rod 4 is set to above the bottom of the babinet 1, and in babinet 1
Below portion.Electrically heated rod 4 is set to the middle position of babinet 1, prevents dry combustion method occur when water is very few.
In the present embodiment, the babinet 1 close to bottom position be equipped with a limit switch 7, the float be equipped with
The bar that the limit switch 7 coordinates, the limit switch 7 are electrically connected with the main control chip.Pass through 5 monitoring case of float level meter
The variation of water level in body 1, and then control the inflow of cold water.At the water level decreasing to limit switch 7 of babinet 1, then electricity is opened
Magnet valve 6, cold water enter.
In the present embodiment, the main control chip controls the solenoid valve 6 through a relay.
In the present embodiment, the main control chip is microcontroller.It is controlled by microcontroller, simpler convenience, the electricity
Heating rod 4 and thermistor can also be electrically connected with the microcontroller.
In conclusion a kind of electric heater with automatic temperature-control provided by the utility model, easy to control, it can be achieved that certainly
Dynamic temperature adjustment.
Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage,
It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (5)
1. a kind of electric heater with automatic temperature-control, the electric heater includes storing the babinet of water, with babinet being connected
Logical cold water inlet, the outlet pipe being connected with babinet and the electrically heated rod being set in babinet, it is characterised in that：It is described
Electrically heated rod is connect with an external power supply, and the anode of the external power supply is successively through a negative tempperature coefficient thermistor, an electromagnetism
Switch is connect with the positive terminal of the electrically heated rod, the cathode of the negative pole end connection external power supply of the electrically heated rod；The heat
Quick resistance is placed in the babinet；One is additionally provided in the babinet for measuring the float level meter of water level in babinet, it is described
A solenoid valve, the solenoid valve and float level meter is additionally provided on cold water inlet to be electrically connected with a main control chip.
2. a kind of electric heater with automatic temperature-control according to claim 1, it is characterised in that：The electrically heated rod is set
It is placed in above the bottom of the babinet, and below the middle part of babinet.
3. a kind of electric heater with automatic temperature-control according to claim 1, it is characterised in that：The babinet is the bottom of close to
Be equipped with a limit switch at portion position, the float is equipped with the bar that coordinate with the limit switch, the limit switch and
The main control chip is electrically connected.
4. a kind of electric heater with automatic temperature-control according to claim 1, it is characterised in that：The main control chip warp
One relay controls the solenoid valve.
5. a kind of electric heater with automatic temperature-control according to claim 4, it is characterised in that：The main control chip is
Microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145442.0U CN207555961U (en) | 2017-09-08 | 2017-09-08 | A kind of electric heater with automatic temperature-control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721145442.0U CN207555961U (en) | 2017-09-08 | 2017-09-08 | A kind of electric heater with automatic temperature-control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207555961U true CN207555961U (en) | 2018-06-29 |
Family
ID=62676009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721145442.0U Expired - Fee Related CN207555961U (en) | 2017-09-08 | 2017-09-08 | A kind of electric heater with automatic temperature-control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207555961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111526618A (en) * | 2020-05-19 | 2020-08-11 | 王伟 | Electric heater and control method thereof |
-
2017
- 2017-09-08 CN CN201721145442.0U patent/CN207555961U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111526618A (en) * | 2020-05-19 | 2020-08-11 | 王伟 | Electric heater and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20200908 |