CN208905232U - A kind of overtemperature protection system for electromagnetic heater - Google Patents
A kind of overtemperature protection system for electromagnetic heater Download PDFInfo
- Publication number
- CN208905232U CN208905232U CN201821104479.3U CN201821104479U CN208905232U CN 208905232 U CN208905232 U CN 208905232U CN 201821104479 U CN201821104479 U CN 201821104479U CN 208905232 U CN208905232 U CN 208905232U
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- China
- Prior art keywords
- tds
- switch
- magnetic latching
- latching relay
- open type
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Abstract
The utility model discloses the components such as a kind of overtemperature protection system for electromagnetic heater, including open type temperature detect switch (TDS), closed type magnetic latching relay, metal blind pipe, switch element, control circuit.The open type temperature detect switch (TDS), the trigger winding of closed type magnetic latching relay and the switch element are connected between DC power supply and ground wire.The contact of the closed type magnetic latching relay, is series in the AC power source of equipment, for controlling the power-off protection of complete machine.The overtemperature protection system of the electromagnetic heater; in heater working condition, by control circuit, element is turned on the switch; the heater is out of control; cause water temperature over-high, more than overheating protection water temperature value when, the open type temperature detect switch (TDS) heats up closure; form complete current loop; the contact that trigger winding controls magnetic latching relay disconnects, and powers off complete machine, carries out overheating protection；When other are standby or the non-heated state such as are not keyed up; control circuit turns off the switch element, even if the heated closure of the open type temperature detect switch (TDS), also no current passes through trigger winding; therefore the contact that not can control magnetic latching relay disconnects, and is not in the overheating protection of mistake.
Description
Technical field
The utility model belongs to overheat protective technology field, and in particular to a kind of overheating protection dress for electromagnetic heater
It sets.
Background technique
(patent No. 201120527859.X) elaborates a kind of feasible scheme for the overheating protection of electromagnetic heater.
But in practical, there are also some shortcomingss, and mainly relatively more using components, structure is relative complex；Maximum problem is
A possibility that there is malfunctions, immediately heating water heater is when in use, it is possible to the hot water in other sources (such as: too
Positive energy water heater etc.) it is used in series, the hot water for often having more than overheating protection temperature value at this time flows through inside heater, due to
Kick switches are pure mechanic structure, can not artificially select to control the movement of its kick, just will appear the overheating protection of mistake, cause whole
Machine can not reuse.And at this time into the water temperature of water heater much higher than setting heating water temperature value, water heater and inactive heater
Make, does not need overheating protection at all.
The overheat protective structure of the instant electric water heater of existing resistance-type fever in the market, all there is this to ask
Topic.
Utility model content
The purpose of this utility model is to provide a kind of overtemperature protection systems for electromagnetic heater, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of overheat guarantor for electromagnetic heater
Protection unit, including open type temperature detect switch (TDS), closed type magnetic latching relay, metal blind pipe, switch element, control circuit, it is described
Open type temperature detect switch (TDS), the trigger winding of the closed type magnetic latching relay, the switch element be connected on DC power supply and
Between ground wire, a metal blind pipe is mounted in heater inner core, outwardly, the open type temperature detect switch (TDS) insertion is golden for opening
Belong to inside blind pipe, the overtemperature protection system of the electromagnetic heater when needing to carry out overheating protection, by control circuit, is beaten
Switch element is opened, when not needing to carry out overheating protection, control circuit turns off the switch element, the closed type magnetic latching relay
Contact is series in the AC power source of equipment, for controlling the power-off protection of complete machine.
This is used for the overtemperature protection system of electromagnetic heater, and in heater working condition, by control circuit, opening is opened
Close element and if heater is out of control at this time cause water temperature over-high, more than overheating protection water temperature value when, the open type temperature control
The heated closure of switch forms complete current loop, and the contact that trigger winding controls magnetic latching relay disconnects, and keeps complete machine disconnected
Electricity carries out overheating protection；When other are standby or the non-heated state such as are not keyed up, control circuit turns off the switch element, even if institute
The heated closure of open type temperature detect switch (TDS) is stated, also no current passes through trigger winding, therefore not can control the contact of magnetic latching relay
It disconnects, is not in the overheating protection of mistake.
The technical effect and advantage of the utility model: this is used for the overtemperature protection system of electromagnetic heater, having heaters
Under working condition, by control circuit, element is turned on the switch, the contact that can just control magnetic latching relay at any time disconnects, into
Row overheating protection.Accurate and effective is protected, is not in the overheating protection of mistake.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
In figure: 1 open type temperature detect switch (TDS), 2 closed type magnetic latching relays, 3 metal blind pipes, 4 switch elements, 5 control electricity
Road, 21 trigger windings, 22 contacts.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of overtemperature protection system for electromagnetic heater as shown in Figure 1, including normally opened
Type temperature detect switch (TDS) 1, closed type magnetic latching relay 2, metal blind pipe 3, switch element 4, control circuit 5, the open type temperature control
Switch 1, the trigger winding 21 of the closed type magnetic latching relay 2, the switch element 4 be connected on DC power supply and ground wire it
Between, a metal blind pipe 3 is mounted in heater inner core, outwardly, it is blind that the open type temperature detect switch (TDS) 1 is inserted into metal to opening
Inside pipe, the overtemperature protection system of the electromagnetic heater, when needing to carry out overheating protection, by control circuit 5, opening is opened
Element 4 is closed, when not needing to carry out overheating protection, control circuit turns off the switch element 4, the closed type magnetic latching relay 2
Contact 22, is series in the AC power source of equipment, for controlling the power-off protection of complete machine.
This is used for the overtemperature protection system of electromagnetic heater, when heater is in running order, by control circuit 5,
Element 4 is turned on the switch, if heater is out of control at this time, causes water temperature over-high, when being more than set water temperature value, the open type temperature control
The heated closure of switch 1, forms complete current loop, and the contact 22 that trigger winding 21 controls magnetic latching relay 2 disconnects, makes
Complete machine power-off, carries out overheating protection；When other are standby or the non-heated state such as are not keyed up, control circuit 5 turns off the switch element
4, the heated closure of the open type temperature detect switch (TDS) 1, also no current passes through trigger winding 21, therefore not can control magnetic latching relay
2 contact 22 disconnects, and is not in overheating protection, and is not available complete machine.
A metal blind pipe 3 is mounted in heater inner core, opening outwardly, insert by open type Kick type temperature detect switch (TDS) 1
Enter inside metal blind pipe 3, the temperature detect switch (TDS) 1 used be open type mechanical structure, room temperature lower contact be disconnection state, two
Lead is mutually not turned on；When temperature is higher than the protection temperature value of setting, internal bimetal leaf movement makes contact closure, and two
Bar lead is instantaneously connected.If switch element 4 is the state opened at this time, electric current passes through the trigger winding of magnetic latching relay 2
21, the contact 22 of magnetic latching relay 2 is disconnected, thus power supply of the whole machine is broken, and it can not voluntarily restore, it must be by profession
Maintenance personal opens casing, after magnetic latching relay 2 is resetted, can just reuse.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (1)
1. a kind of overtemperature protection system for electromagnetic heater, including open type temperature detect switch (TDS) (1), closed type magnetic keep relay
Device (2), metal blind pipe (3), switch element (4), control circuit (5), the open type temperature detect switch (TDS) (1), the closed type magnetic
Trigger winding (21), the switch element (4) of guard relay (2) are connected between DC power supply and ground wire, in heater
A metal blind pipe (3) is mounted in inner core, opening outwardly, be inserted into inside metal blind pipe by the open type temperature detect switch (TDS) (1),
The overtemperature protection system of the electromagnetic heater when needing to carry out overheating protection, by control circuit (5), turns on the switch member
Part (4), when not needing to carry out overheating protection, control circuit turns off the switch element (4),
The contact (22) of the closed type magnetic latching relay (2), is series in the AC power source of equipment, for controlling complete machine
Power-off protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104479.3U CN208905232U (en) | 2018-07-12 | 2018-07-12 | A kind of overtemperature protection system for electromagnetic heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821104479.3U CN208905232U (en) | 2018-07-12 | 2018-07-12 | A kind of overtemperature protection system for electromagnetic heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208905232U true CN208905232U (en) | 2019-05-24 |
Family
ID=66567413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821104479.3U Active CN208905232U (en) | 2018-07-12 | 2018-07-12 | A kind of overtemperature protection system for electromagnetic heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208905232U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108834234A (en) * | 2018-07-12 | 2018-11-16 | 江门市银河科技发展有限公司 | A kind of overtemperature protection system for electromagnetic heater |
-
2018
- 2018-07-12 CN CN201821104479.3U patent/CN208905232U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108834234A (en) * | 2018-07-12 | 2018-11-16 | 江门市银河科技发展有限公司 | A kind of overtemperature protection system for electromagnetic heater |
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