CN211698637U

CN211698637U - Control circuit based on thermoelectric generation

Info

Publication number: CN211698637U
Application number: CN201922501621.9U
Authority: CN
Inventors: 方正; 王志忠
Original assignee: Jiujiang Technology Guangdong Co ltd
Current assignee: Jiujiang Technology Guangdong Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-16
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the technical field of the control circuit technique and specifically relates to indicate a control circuit based on thermoelectric generation, including thermoelectric generation chip IC3, boost module IC1, controller IC2, switch tube Q1, positive output port and negative output port, boost module IC 1's input and positive output port all are connected with thermoelectric generation chip IC 3's output, boost module IC 1's output and controller IC 2's the end that receives electricity are connected, negative output port is connected with switch tube Q1's first switch end, switch tube Q1's second switch end ground connection, switch tube Q1's control end is connected with controller IC 2's output, pilot lamp LED 1's positive pole is connected with boost module IC 1's output, controller IC 2's inside is equipped with timing module, controller IC2 is according to timing module's timing signal control switch tube Q1's break-make-break-make. The utility model discloses can reach the effect that prevents to be long length when the device of power supply by the thermoelectric generation chip operates.

Description

Control circuit based on thermoelectric generation

Technical Field

The utility model belongs to the technical field of the control circuit technique and specifically relates to indicate a control circuit based on thermoelectric generation.

Background

After the thermoelectric generation technology is born, some products which utilize thermoelectric generation to realize the stirring function appear on the market. The principle is that the thermoelectric generation chip is utilized to supply power to the driving piece, so that the stirring rod in the cup is driven by the driving piece to move. But the product that the stirring was realized to current utilization difference in temperature does not have control function, and the power receiving end of driving piece often directly is connected with the output of thermoelectric generation chip, and thermoelectric generation chip stops the power supply back promptly, and the driving piece just can stop the operation. Because the thermoelectric generation chip can continue to generate electricity until the liquid temperature in the product is lower, so the running time of driving piece is longer, and the user often spends longer time waiting for the stirring, results in that these products that have the stirring function use experience relatively poor.

Disclosure of Invention

The utility model discloses problem to prior art provides a control circuit based on thermoelectric generation, can control when utilizing thermoelectric generation to realize the stirring of the product of stirring.

The utility model adopts the following technical scheme: a control circuit based on thermoelectric power generation comprises a thermoelectric power generation chip IC3, a boosting module IC1, a controller IC2, a switch tube Q1, a switch tube Q2, an indicator light LED1, a positive output port and a negative output port, wherein the input end and the positive output port of the boosting module IC1 are connected with the output end of the thermoelectric power generation chip IC3, the output end of the boosting module IC1 is connected with the power receiving end of the controller IC2, the negative output port is connected with a first switch end of the switch tube Q1, a second switch end of the switch tube Q1 is grounded, the first switch end of the switch tube Q2 is connected with the cathode of the indicator light LED1, the second switch end of the switch tube Q2 is grounded, the control ends of the switch tube Q1 and the switch tube Q2 are respectively connected with the output end of the controller IC2, the anode of the indicator light IC1 is connected with the output end of the boosting module IC1, the controller IC2 is internally provided with a timing module, and the controller IC2 controls the on-off of the switch tube Q1 and the on-off of the switch tube Q2 according to a timing signal of the timing module.

Preferably, the control circuit based on thermoelectric power generation further comprises a resistor R3, one end of the resistor R3 is connected to the cathode of the indicator light LED1, and the other end of the resistor R3 is connected to the first switch end of the switch tube Q2.

Preferably, the control circuit based on thermoelectric power generation further comprises a resistor R2, and the control end of the switching tube Q2 is connected with the output end of the controller IC2 through a resistor R2.

Preferably, the control circuit based on thermoelectric power generation further comprises a resistor R1, and the controller IC2 is connected with the control end of the switching tube Q1 through the resistor R1.

Preferably, the thermoelectric power generation-based control circuit further comprises a diode D1, an anode of the diode D1 is connected to the negative output port, and a cathode of the diode D1 is connected to the positive output port.

Preferably, the control circuit based on thermoelectric power generation further comprises a capacitor C3, one end of the capacitor C3 is connected with the power receiving end of the controller IC2, and the other end of the capacitor C3 is grounded.

The utility model has the advantages that: the thermoelectric power generation chip supplies power to the outside through the positive output end and the negative output end, and the controller with the timing module is used for controlling the on-off of a loop between the positive output end and the negative output end according to a timing signal of the timing module, so that the running time of a device connected with the positive output end and the negative output end is controlled, and the effect of preventing the device supplied with power by the thermoelectric power generation chip from running for too long is achieved.

Drawings

Fig. 1 is a partial circuit diagram of the present invention.

Fig. 2 is another partial circuit diagram of the present invention.

The reference signs are: 1. a positive output port; 2. and a negative output port.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, a control circuit based on thermoelectric power generation includes a thermoelectric power generation chip IC3, a boost module IC1, a controller IC2, a switch tube Q1, a switch tube Q2, an indicator light LED1, a positive output port 1 and a negative output port 2, wherein an input terminal of the boost module IC1 and the positive output port 1 are both connected to an output terminal of the thermoelectric power generation chip IC3, an output terminal of the boost module IC1 is connected to a power receiving terminal of the controller IC2, the negative output port 2 is connected to a first switch terminal of the switch tube Q1, a second switch terminal of the switch tube Q1 is grounded, the first switch terminal of the switch tube Q2 is connected to a cathode of the indicator light LED1, the second switch terminal of the switch tube Q2 is grounded, a control terminal of the switch tube Q1 and a control terminal of the switch tube Q2 are respectively connected to an output terminal of the controller IC2, and an anode of the indicator light LED1 is connected to an output terminal 1 of the boost module IC 53936, the controller IC2 is internally provided with a timing module, and the controller IC2 controls the on-off of the switch tube Q1 and the on-off of the switch tube Q2 according to a timing signal of the timing module.

When the power supply is used, the positive output end is connected with the positive power receiving end of the driving piece in the product, and the negative output end is connected with the negative power receiving end of the driving piece in the product. After the thermoelectric generation chip IC3 senses the temperature difference, go out to positive output and pilot lamp LED1 output power signal, controller IC2 control switch tube Q1 and switch tube Q2 switch on for form the return circuit between positive output port 1 and the negative output port 2, the inside timing module of controller IC2 begins the timing simultaneously, the driving piece operation and pilot lamp LED1 light this moment. After the timing module in the controller IC2 times for a predetermined time, the controller IC2 controls the switch tube Q1 and the switch tube Q2 to be cut off, so that a loop is not formed between the positive output port 1 and the negative output port 2, at this time, the driving member stops operating, and the indicator light LED1 is not turned on, thereby controlling the operating time of the driving member, and achieving the effect of indicating the operating condition of the driving member by the indicator light LED 1.

The thermoelectric generation chip IC3 is an existing power generation mode, that is, heat energy is directly converted into electric energy by using the seebeck effect: one side of the device composed of the P-type and N-type combined semiconductor elements is maintained at a low temperature, and the other side is maintained at a high temperature, so that the high-temperature side of the device conducts heat energy to the low-temperature side and generates heat flow. That is, when heat energy flows into the device from the high temperature side and is discharged from the low temperature side through the device, a part of the heat energy flowing into the device does not release heat and is converted into electric energy in the device, and a direct current voltage and a current are output.

As shown in fig. 2, the thermoelectric power generation-based control circuit further includes a resistor R3, one end of the resistor R3 is connected to the cathode of the indicator LED1, and the other end of the resistor R3 is connected to the first switch end of the switching tube Q2. The current of the indicator light LED1 is limited by the resistor R3, so that the indicator light LED1 is prevented from being broken down due to the fact that the current flowing through the indicator light LED1 is too large.

As shown in fig. 2, the control circuit based on thermoelectric power generation further includes a resistor R2, and the control terminal of the switching tube Q2 is connected to the output terminal of the controller IC2 through a resistor R2, so as to prevent the switching tube Q2 from being broken down due to an excessive current flowing through the control terminal of the switching tube Q2.

As shown in fig. 1, the control circuit based on thermoelectric power generation further includes a resistor R1, and the controller IC2 is connected to the control terminal of the switching tube Q1 through a resistor R1, so as to prevent the switching tube Q1 from being broken down due to an excessive current flowing through the control terminal of the switching tube Q1.

As shown in fig. 1, the thermoelectric power generation-based control circuit further includes a diode D1, an anode of the diode D1 is connected to the negative output port 2, and a cathode of the diode D1 is connected to the positive output port 1. The diode D1 can quickly reduce the high transient energy to the minimum value and clamp the voltage to a certain value when a reverse voltage is generated between the positive output port 1 and the negative output port 2, thereby protecting the driving parts connected to the positive output port 1 and the negative output port 2.

As shown in fig. 2, the thermoelectric power generation-based control circuit further includes a capacitor C3, one end of the capacitor C3 is connected to the power receiving end of the controller IC2, and the other end of the capacitor C3 is grounded. The capacitor C3 can filter the power signal output by the boost module IC1, thereby ensuring that the controller IC2 receives power stably.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a control circuit based on thermoelectric generation which characterized in that: the temperature difference power generation device comprises a temperature difference power generation chip IC3, a boosting module IC1, a controller IC2, a switch tube Q1, a switch tube Q2, an indicator light LED1, a positive output port (1) and a negative output port (2), wherein the input end of the boosting module IC1 and the positive output port (1) are connected with the output end of the temperature difference power generation chip IC3, the output end of the boosting module IC1 is connected with the power receiving end of the controller IC2, the negative output port (2) is connected with a first switch end of a switch tube Q1, a second switch end of a switch tube Q1 is grounded, a first switch end of a switch tube Q2 is connected with the cathode of the indicator light LED1, a second switch end of the switch tube Q2 is grounded, a control end of a switch tube Q1 and a control end of a switch tube Q2 are respectively connected with the output end of the controller IC2, and the anode of the indicator light LED1 is connected with the output end of the boosting module IC1, the controller IC2 is internally provided with a timing module, and the controller IC2 controls the on-off of the switch tube Q1 and the on-off of the switch tube Q2 according to a timing signal of the timing module.

2. The thermoelectric power generation-based control circuit according to claim 1, wherein: the control circuit based on thermoelectric generation further comprises a resistor R3, one end of the resistor R3 is connected with the cathode of the indicator light LED1, and the other end of the resistor R3 is connected with the first switch end of the switch tube Q2.

3. The thermoelectric power generation-based control circuit according to claim 1, wherein: the control circuit based on thermoelectric power generation further comprises a resistor R2, and the control end of the switching tube Q2 is connected with the output end of the controller IC2 through a resistor R2.

4. The thermoelectric power generation-based control circuit according to claim 1, wherein: the control circuit based on thermoelectric power generation further comprises a resistor R1, and the controller IC2 is connected with the control end of the switch tube Q1 through a resistor R1.

5. The thermoelectric power generation-based control circuit according to claim 1, wherein: the control circuit based on thermoelectric power generation further comprises a diode D1, wherein the anode of the diode D1 is connected with the negative output port (2), and the cathode of the diode D1 is connected with the positive output port (1).

6. The thermoelectric power generation-based control circuit according to claim 1, wherein: the control circuit based on thermoelectric power generation further comprises a capacitor C3, one end of the capacitor C3 is connected with the power receiving end of the controller IC2, and the other end of the capacitor C3 is grounded.