Multi-protection radiant cooker control circuit
The safety control switch circuit, composed of a self-resetting normally open switch and a relay, solves the problems of accidental activation and cumbersome operation of the electric ceramic cooker switch, achieves multiple protections, reduces the probability of accidental activation, and simplifies the operation process.
Patent Information
- Application Number
- CN202520238642.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The safety mechanism of the existing electric ceramic stove switch is easily triggered by accident, leading to safety accidents, and the operation is cumbersome.
The safety control switch circuit, composed of a self-resetting normally open switch and a relay, uses voltage difference to trigger the relay to close, achieving multiple protections, reducing the probability of accidental activation, and simplifying switch operation.
It effectively reduces the chance of accidental start-up of the electric ceramic stove, simplifies the operation of the heating switch, and improves safety and convenience.
Smart Images
Figure CN223954222U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric ceramic stove manufacturing, especially a multiple protection electric ceramic stove control circuit. BACKGROUND
[0002] The conventional electric ceramic stove is generally connected to one switch corresponding to one burner, and the burner can be started by rotating or pressing the switch, but this triggering mode is easy to be triggered by human error, leading to safety accidents. In order to reduce the triggering by human error, the electric ceramic stoves sold on the market are provided with corresponding safety mechanisms. The switch safety mechanisms of the electric ceramic stove mainly have two types. The first type is to add a plastic switch cover on the outside of the burner switch. The burner switch is covered by the plastic switch cover. The switch cover is removed during use and covered during non-use. The operation is relatively complicated. Moreover, the plastic switch cover is not firm and is easy to be opened by mistake or lost. The second type is to add a switch lock on the burner switch of the electric ceramic stove. The switch can be turned only after the switch lock is unlocked. However, the operation mode of the burner switch is also relatively complicated. SUMMARY
[0003] In view of the above problems of the prior art, the utility model aims to provide a multiple protection electric ceramic stove control circuit with a safety control switch circuit, which can reduce the triggering probability of the electric ceramic stove by human error and the complexity of the operation of the heating switch of the electric ceramic stove.
[0004] The utility model realizes the above-mentioned purpose in the following way.
[0005] The utility model discloses a multiple protection electric ceramic stove control circuit, including load circuit, safety control switch circuit and power supply, the safety control switch circuit includes self-resetting always-on switch, relay 1 and relay 2, the load circuit is connected in parallel by a plurality of heating control circuits, wherein, one end of self-resetting always-on switch is connected to one end of the always-on switch of relay 1 and power supply access end L2, the other end of self-resetting always-on switch is connected to the other end of the always-on switch of relay 1 and one end of the coil of relay 2, the other end of the always-on switch of relay 2 is connected with power supply access end L2, one end of the always-on switch of relay 2 is connected with the other end of the coil of relay 1, one end of the coil of relay 1 is connected to one end of the heating element of heating control circuit, the heating element is connected in series with one end of heating switch, the other end of heating switch is connected to power supply access end L1, the other end of heating element is connected with the other end of the coil of relay 1 and one end of the always-on switch of relay 2, the other end of the coil of relay 2 is connected with power supply access end L1, the voltage of power supply access end L1 is different from the voltage of power supply access end L2.
[0006] Further, a working indicator lamp is further included, the working indicator lamp is connected in parallel with the heating element of one of the heating control circuits, one end of the working indicator lamp is further connected with one end of the coil of the relay 1, and the other end of the working indicator lamp is further connected with the other end of the coil of the relay 1 and one end of the normally open switch of the relay 2.
[0007] The utility model discloses the beneficial effect:
[0008] The utility model discloses a kind of multiple protection electric ceramic stove control circuits with safety control switch circuit, when self-resetting normally open switch is closed, the coil of relay 2 is connected with power access end L1, L2, because the voltage of power access end L1 and the voltage of power access end L2 are not identical, there is voltage difference, the coil of relay 2 is thus powered and triggers the other end closure of the normally open switch of relay 2, thus, the normally open switch of relay 2 is closed, and the several heating control circuits connected in parallel in load circuit can be connected with power access end L2 through the normally open switch of relay 2, at this time, select to close one of heating switch, the heating switch will connect corresponding heating control circuit with power access end L1, thus, the heating control circuit is connected with power access end L1, L2 and constitutes a loop of electrical communication, the heating control circuit is thus powered and works, while the coil of relay 1 is also connected with power access end L1, L2 through the heating control circuit and is powered, triggers the other end closure of the normally open switch of relay 1, so that the normally open switch of relay 1 is closed, after that, as long as the closed heating switch continues to maintain closed state, the heating control circuit corresponding to the closed heating switch will maintain connection state with power access end L2, and other heating control circuits connected in parallel with the heating control circuit can be connected with power access end L2 through the heating control circuit, at this time, the closed heating switch replaces self-resetting normally open switch, and self-resetting normally open switch can be disconnected, and other heating control circuits can be connected with power access end L2 through the heating control circuit that has been powered, in this way, other heating control circuits only need to close corresponding heating switch to connect with power access end L1, and can be powered and work with power communication, without needing to close self-resetting normally open switch simultaneously, reduce the degree of operation complexity of heating switch, and, relative to prior art, the electric ceramic stove control circuit of the utility model, any one of self-resetting normally open switch and several heating switches is closed, and the electric ceramic stove cannot be started, and only according to the above operation method can the electric ceramic stove be started, and the probability that the electric ceramic stove is mistakenly triggered to start can be reduced. BRIEF DESCRIPTION OF DRAWINGS
[0009] The utility model is further illustrated in connection with the drawings and examples:
[0010] Figure 1 It is the working principle flow chart schematic view of a kind of multiple protection electric ceramic stove control circuit in the utility model one embodiment.
[0011] Figure 2 It is a structure schematic view of a multiple protection electric ceramic stove control circuit in an embodiment of the utility model. CONCRETE IMPLEMENTATION
[0012] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further explained in detail below by combining with the embodiment and the drawing, and the illustrative embodiment and the explanation thereof of the utility model are only used for analyzing the utility model, and do not serve as the limitation to the utility model.
[0013] Figure 2 The specific circuit structure of a multiple protection electric ceramic stove control circuit in an embodiment of the utility model is shown, and the multiple protection electric ceramic stove control circuit specifically includes a load circuit, a safety control switch circuit and a power supply, the power supply includes a power supply access end L1 and a power supply access end L2, the voltage of the power supply access end L1 is not same with the voltage of the power supply access end L2, the load circuit, the safety control switch circuit and the power supply, the safety control switch circuit includes a self-resetting normally open switch, a relay 1 and a relay 2, the load circuit is connected in parallel by a plurality of heating control circuits, wherein one end of the self-resetting normally open switch is connected to one end of the normally open switch of the relay 1 and the power supply access end L2, the other end of the self-resetting normally open switch is connected to the other end of the normally open switch of the relay 1 and one end of the coil of the relay 2, the other end of the normally open switch of the relay 2 is connected with the power supply access end L2, one end of the normally open switch of the relay 2 is connected with the other end of the coil of the relay 1, one end of the coil of the relay 1 is connected to one end of the heating element of the heating control circuit, the heating element is connected in series with one end of the heating switch, the other end of the heating switch is connected to the power supply access end L1, the other end of the heating element is connected with the other end of the coil of the relay 1 and one end of the normally open switch of the relay 2, the other end of the coil of the relay 2 is connected with the power supply access end L1.
[0014] The specific working principle of a multiple protection electric ceramic stove control circuit in an embodiment of the utility model is as shown in the flow chart of Figure 1
[0015] When the self-resetting normally-open switch is closed, the coil of the relay 2 is connected with the power access terminals L1 and L2, and because the voltage of the power access terminal L1 is different from the voltage of the power access terminal L2, there is a voltage difference, so the coil of the relay 2 is electrified to trigger the other end of the normally-open switch of the relay 2 to be closed, thereby the normally-open switch of the relay 2 is closed, and the plurality of heat control circuits connected in parallel in the load circuit can be connected with the power access terminal L2 through the normally-open switch of the relay 2, at this time, one of the heat switches is selected to be closed, and the heat control circuit corresponding to the heat switch is connected with the power access terminal L1, thereby the heat control circuit and the power access terminals L1 and L2 are connected to form a loop of electrical connection, and the heat control circuit is electrified to work, and the heat element of the heat control circuit starts to work, at the same time, the coil of the relay 1 is substantially connected in parallel with the plurality of heat control circuits, when one of the heat control circuits is electrically connected, the coil of the relay 1 connected in parallel with the heat control circuit is electrified to trigger the other end of the normally-open switch of the relay 1 to be closed, so that the normally-open switch of the relay 1 is closed, and thereafter, as long as the closed heat switch continues to be closed, the heat control circuit corresponding to the heat switch is connected with the power access terminal L2, and the other heat control circuits connected in parallel with the heat control circuit can be connected with the power access terminal L2 through the heat control circuit, at this time, the closed heat switch replaces the self-resetting normally-open switch, and even if the self-resetting normally-open switch is opened, the relay 1 can be electrified through the load circuit to make the normally-open switch of the relay 1 continue to be closed, and the coil of the relay 2 can be electrified through the normally-open switch of the relay 1 and the load circuit to make the normally-open switch of the relay 2 continue to be closed, and thereafter, the self-resetting normally-open switch can be opened, and the other heat control circuits can be connected with the power access terminal L2 through the heat control circuit which is electrified, and thereafter, the other heat control circuits only need to close the corresponding heat switches to be connected with the power access terminal L1 to be connected with the power supply to make the heat elements be electrified to work, so that the self-resetting normally-open switch does not need to be closed at the same time, thereby the operation complexity of the heat switches is reduced, and when all the heat switches are opened, the load circuit is disconnected with the power supply, and the coils of the relays 1 and 2 are not electrified to trigger the normally-open switches to be opened, and the heat elements stop working, and when the electric ceramic stove is started next time, the above operation can be repeated.
[0016] Compared with the prior art, the multiple-protection electric ceramic stove control circuit provided by the utility model can start the electric ceramic stove only by the operation method, and the probability that the electric ceramic stove is started by mistake is reduced.
[0017] Further, as Figure 2As shown, in the embodiment, the working indicator lamp is connected in parallel with the heating element of one of the heating control circuits, one end of the working indicator lamp is also connected with one end of the coil of the relay 1, and the other end of the working indicator lamp is also connected with the other end of the coil of the relay 1 and one end of the normally open switch of the relay 2; when one of the heating control circuits in the load circuit is powered on, the working indicator lamp is powered on through the powered heating control circuit and the power supply, and the working indicator lamp is brightened to prompt the load circuit to be connected with the power supply; when all the heating switches are closed, the load circuit is powered off, and the working indicator lamp is turned off to prompt the load circuit to be disconnected with the power supply.
[0018] It can be understood that the above embodiment only expresses the preferred embodiment of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification of the present application claim and scope should belong to the scope of the present application claim.
Claims
1. A multiple protection control circuit for an electric ceramic stove, characterized in that: The application relates to a safety control switch circuit and a power supply, and the safety control switch circuit comprises a self-resetting always-on switch, a relay 1 and a relay 2, and a load circuit connected in parallel by a plurality of heat generating control circuits, wherein one end of the self-resetting always-on switch is connected to one end of an always-on switch of the relay 1 and a power supply access end L2, the other end of the self-resetting always-on switch is connected to the other end of the always-on switch of the relay 1 and one end of a coil of the relay 2, the other end of the always-on switch of the relay 2 is connected to the power supply access end L2, one end of the always-on switch of the relay 2 is connected to the other end of the coil of the relay 1, one end of the coil of the relay 1 is connected to one end of a heat generating element of the heat generating control circuit, the heat generating element is connected in series with one end of a heat generating switch, the other end of the heat generating switch is connected to the power supply access end L1, the other end of the heat generating element is connected to the other end of the coil of the relay 1 and one end of the always-on switch of the relay 2, the other end of the coil of the relay 2 is connected to the power supply access end L1, and the voltage of the power supply access end L1 is different from the voltage of the power supply access end L2.
2. The control circuit for a multi-protected electric ceramic stove according to claim 1, characterized in that: The application further relates to a working indicator lamp connected in parallel with the heat generating element of one of the heat generating control circuits, one end of the working indicator lamp is further connected to one end of the coil of the relay 1, and the other end of the working indicator lamp is further connected to the other end of the coil of the relay 1 and one end of the always-on switch of the relay 2.