CN217642692U - Sauna bath blanket protection circuit and sauna bath blanket - Google Patents
Sauna bath blanket protection circuit and sauna bath blanket Download PDFInfo
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- CN217642692U CN217642692U CN202221503572.8U CN202221503572U CN217642692U CN 217642692 U CN217642692 U CN 217642692U CN 202221503572 U CN202221503572 U CN 202221503572U CN 217642692 U CN217642692 U CN 217642692U
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Abstract
The utility model provides a sauna bath blanket protection circuit and sauna bath blanket, include: the device comprises an AC power input circuit, an EMC circuit, an AC-DC switching circuit, a photoelectric coupling isolation control circuit, a voltage stabilizing circuit, an MCU control module, a temperature feedback and overheating feedback sampling circuit, a silicon controlled short circuit, a heating wire short circuit detection circuit, a heating driving circuit, a short circuit protection circuit, a key display circuit, a massage motor and a heating wire; the AC power supply input circuit is connected with the AC-DC switching circuit and the photoelectric coupling isolation control circuit through the fuse circuit, and the photoelectric coupling circuit is connected with the massage motor; the AC power supply input circuit is connected with the voltage stabilizing circuit; the voltage stabilizing circuit, the temperature feedback and overheating feedback sampling circuit, the silicon controlled rectifier short circuit, the heating wire short circuit detection circuit, the heating driving circuit and the key display circuit are connected with the MCU control module; and the short-circuit protection circuit is connected with the MCU control module and the heating wire.
Description
Technical Field
The utility model relates to the technical field of electronics, specifically a sauna bath blanket protection circuit and sauna bath blanket.
Background
Sauna blankets are a kind of thermal far infrared sauna bath which uses the concept of body wrap to help eliminate unwanted chemicals from the body and break down fatty tissue deposits. The use of sauna blankets has two benefits: beauty and health; the sauna bath blanket can help to lose weight and reduce the appearance of orange peel tissue; can also help lower blood pressure, reduce inflammation, relieve muscle and joint pain, arthritic pain and headache; the sauna bath blanket is favorable for cleaning toxins of the body and improving the mood of a user, so the sauna bath blanket is deeply loved by consumers, but the existing sauna bath blanket has poor performance in temperature control and protection, often endangers internal devices when a heating wire is disconnected, seriously influences the safety of the user and has high maintenance cost.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To the not enough of prior art, the utility model provides a sauna bath blanket protection circuit and sauna bath blanket has solved the problem that proposes among the above-mentioned background art when taking place to generate heat the line and open circuit, often endangers inside device, causes the influence to user safety when serious to cost of maintenance is high.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a sauna bath blanket protection circuit, comprising: the device comprises an AC power input circuit, an EMC circuit, an AC-DC switching circuit, a photoelectric coupling isolation control circuit, a voltage stabilizing circuit, an MCU control module, a temperature feedback and overheating feedback sampling circuit, a silicon controlled short circuit, a heating wire short circuit detection circuit, a heating driving circuit, a short circuit protection circuit, a key display circuit, a massage motor and a heating wire;
the AC power supply input circuit is sequentially connected with the AC-DC switching circuit and the photoelectric coupling isolation control circuit through the fuse circuit, and the output end of the photoelectric coupling circuit is connected with the massage motor;
the AC power supply input circuit is connected with the voltage stabilizing circuit;
the voltage stabilizing circuit is connected with the MCU control module;
the temperature feedback and overheating feedback sampling circuit is connected with the MCU control module;
the silicon controlled short circuit and heating wire short circuit detection circuit is connected with the MCU control module;
the heating driving circuit is connected with the MCU control module;
the temperature feedback and overheating feedback sampling circuit, the silicon controlled short circuit, the heating wire short circuit detection circuit and the heating driving circuit are connected with the heating wire;
the short-circuit protection circuit is connected with the MCU control module and the heating wire;
and the key display circuit is connected with the MCU control module.
Preferably, the MCU control module selects an SN8F570320 chip, and generates the PWM signal through interruption of the SN8F 570320.
Preferably, the voltage stabilizing circuit is a KP3310GS chip, and the voltage stabilizing circuit supplies power to the MCU control module at a voltage of 5V.
Preferably, the key display circuit adopts an LCD3/89070 chip, collects different voltage values of the MCU control module, and judges different input control commands.
Preferably, the photocoupling isolation control circuit adopts MT6522A and EL817 to realize 12VDC output and control the massage motor to work.
The utility model also provides a sauna bath blanket, include: the sauna bath blanket comprises a blanket body, a heating line, a massage bag and a controller, and is characterized in that the controller adopts a sauna bath blanket protection circuit as any one of the above.
(III) advantageous effects
The utility model provides a sauna bath blanket protection circuit and sauna bath blanket. The method has the following beneficial effects:
under the condition that the uncontrollable heating wire is broken, the safety of important components and parts inside the controller and user personnel can be protected, and the maintenance cost is reduced.
Drawings
FIG. 1 is a block diagram of a circuit for protecting a sauna bath blanket provided by the utility model;
FIG. 2 is a circuit diagram of a photoelectric coupling isolation control circuit of a sauna blanket protection circuit provided by the utility model;
FIG. 3 is a circuit diagram of the MCU control module and the voltage stabilizing circuit of the sauna bath blanket protection circuit provided by the utility model;
FIG. 4 is a circuit diagram of the connection between the MCU control module and the key display circuit of the sauna bath blanket protection circuit provided by the utility model;
FIG. 5 is a circuit diagram of the connection between the MCU control module and the temperature feedback and overheating feedback sampling circuit of the sauna blanket protection circuit provided by the utility model;
figure 6 is a circuit diagram of the sauna bath blanket protection circuit MCU control module and the silicon controlled short circuit, heating wire short circuit detection circuit provided by the utility model.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
The embodiment of the utility model provides a sauna bath blanket protection circuit, as shown in fig. 1-6, include: the massage machine comprises an AC power input circuit 1, an EMC circuit 2, an AC-DC switch circuit 3, a photoelectric coupling isolation control circuit 4, a voltage stabilizing circuit 6, an MCU control module 7, a temperature feedback and overheating feedback sampling circuit 8, a silicon controlled short circuit, a heating wire short circuit detection circuit 9, a heating drive circuit 10, a short circuit protection circuit 11, a key display circuit 13, a massage motor 5 and a heating wire 12;
the AC power input circuit 1 is sequentially connected with an AC-DC switching circuit 3 and a photoelectric coupling isolation control circuit 4 through an EMC circuit 2, and the output end of the photoelectric coupling isolation control circuit 4 is connected with a massage motor 5;
the AC power input circuit 1 is connected with a voltage stabilizing circuit 6;
120 60HZ input by the AC power input circuit 1 passes through an F1 current fuse of the fuse circuit 2, then passes through an EMC interference suppression circuit, then passes through zero commercial power sampling, and then enters the blanket body and the switch power module;
KP3310GS voltage stabilization 5V supplies power to MCU control module, and MCU control module realizes temperature control, constant temperature control and display feedback by the feedback of temperature sampling silicon controlled rectifier short circuit break detection heating wire temperature sensing line module, short circuit break detection and protection module.
The voltage stabilizing circuit 6 is connected with the MCU control module 7;
the temperature feedback and overheating feedback sampling circuit 8 is connected with the MCU control module 7;
the silicon controlled short circuit and heating wire short circuit detection circuit 9 is connected with the MCU control module 7, and the AD value sampling is carried out by utilizing the resistance change characteristic of the temperature sensing wire PTC;
the heating driving circuit 10 is connected with the MCU control module 7;
the temperature feedback and overheating feedback sampling circuit 8, the silicon controlled short circuit and heating wire short circuit detection circuit 9 and the heating drive circuit 10 are connected with the heating wire 12;
as shown in fig. 5, when the current flows from H1 to H2 to the heating wire, the temperature feedback and overheating feedback sampling circuit 8 starts to heat, applies VCC 5V voltage to H4, and enters the ground from R32 through the temperature sensing wire H3, generates a voltage drop at the port P2.1, detects the voltage at the port P2.1 by the pin MCU 12, converts the voltage into an AD value, and determines the temperature of the heating wire set in the corresponding gear to control the temperature by using the PTC characteristic of the temperature sensing wire.
As shown in fig. 6, the P18 of the MCU detects a full-wave high-low alternating level of a sine wave in a normal heating working state, when the SCR1 is short-circuited, the P18 detects a continuous low level, which indicates that the SCR1 is short-circuited, and the pin P12 outputs a high level to drive the SCR2 to heat the RX1 and burn the F2, so as to cut off the power supply, and at this time, the circuit does not operate, thereby achieving the protection effect.
When the temperature sensing line between H4 and H3 is disconnected, the voltage value of the port P2.1 is P11 of the MCU of 0V, the disconnection of the temperature sensing line is detected, and meanwhile, the MCU prompts a user that the heating line is disconnected, and the fault is reported and F is displayed.
When the voltage value of the P2.1 port exceeds 4.8V after the temperature sensing wires between the H4 and the H3 are short-circuited, the P11 detects the short circuit of the temperature sensing wires, and meanwhile, the MCU prompts a user of error reporting of the short circuit of the heating wire and displays F.
After short circuit occurs between H1H 2 and H3H 4, large current flows from H1H 2 to H3H 4, and F3 and F4 fuses are firstly fused to protect important components such as MCU and the like from being burnt. F3 After F4 is fused, the current flows to RX2 to heat the F2 temperature fuse, and F2 is fused. The purpose of power failure is realized, and the work is stopped.
The short-circuit protection circuit 11 is connected with the MCU control module 7 and the heating wire 12; the short-circuit protection circuit 11 heats the RX1 RX2 by using a large current, and conducts heat to the F2 temperature fuse to realize fusing and power off.
The key display circuit 13 is connected with the MCU control module 7; the display key module and the MCU control module 10 pin sample different voltage values and judge different input commands; the LCD code breaking screen adopts LCD 3/89070) 1/2 bias voltage to display the current setting, and L7 provides backlight source for the LCD screen.
Preferably, the MCU control module 7 selects an SN8F570320 chip, and generates the PWM signal through interruption of the SN8F 570320.
Preferably, the voltage stabilizing circuit 6 is a KP3310GS chip, and the voltage stabilizing circuit supplies power to the MCU control module at a voltage of 5V.
Preferably, the key display circuit 13 selects an LCD3/89070 chip, collects different voltage values of the MCU control module 7, and determines different input control commands.
Preferably, 1,2,3,4,5,6,7,8 gear heating selection and timing can be selected through a key, wherein the selection is 1 minute equal to 15 minutes, 2 minutes equal to 30 minutes, 3 minutes equal to 45 minutes, and 4 minutes equal to 60 minutes; and after the corresponding gear is switched, the controller automatically keeps constant temperature of the corresponding gear.
Preferably, the photocoupling isolation control circuit 4 adopts MT6522A and EL817 to realize 12VDC output and control the operation of the massage motor 5.
The embodiment of the utility model provides a sauna bath blanket still provides, include: the sauna bath blanket comprises a blanket body, a heating line, a massage bag and a controller, and is characterized in that the controller adopts a sauna bath blanket protection circuit as any one of the above.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A sauna bath carpet protection circuit is characterized by comprising: the device comprises an AC power input circuit, an EMC circuit, an AC-DC switching circuit, a photoelectric coupling isolation control circuit, a voltage stabilizing circuit, an MCU control module, a temperature feedback and overheating feedback sampling circuit, a silicon controlled short circuit, a heating wire short circuit detection circuit, a heating driving circuit, a short circuit protection circuit, a key display circuit, a massage motor and a heating wire;
the AC power supply input circuit is sequentially connected with the AC-DC switching circuit and the photoelectric coupling isolation control circuit through the fuse circuit, and the output end of the photoelectric coupling circuit is connected with the massage motor;
the AC power supply input circuit is connected with the voltage stabilizing circuit;
the voltage stabilizing circuit is connected with the MCU control module;
the temperature feedback and overheating feedback sampling circuit is connected with the MCU control module;
the silicon controlled short circuit and heating wire short circuit detection circuit is connected with the MCU control module;
the heating driving circuit is connected with the MCU control module;
the temperature feedback and overheating feedback sampling circuit, the silicon controlled short circuit, the heating wire short circuit detection circuit and the heating driving circuit are connected with the heating wire;
the short-circuit protection circuit is connected with the MCU control module and the heating wire;
and the key display circuit is connected with the MCU control module.
2. The sauna blanket protection circuit of claim 1, wherein the MCU control module is an SN8F570320 chip, and the PWM signal is generated by interruption of SN8F 570320.
3. The sauna blanket protection circuit of claim 2, wherein the voltage regulator circuit is a KP3310GS chip, and the voltage regulator 5V supplies power to the MCU control module.
4. The sauna carpet protection circuit of claim 3, wherein the button display circuit selects LCD3/89070 chip, collects different voltage values of the MCU control module, and determines different input control commands.
5. The sauna blanket protection circuit of claim 4, wherein the optoelectronic coupling isolation control circuit adopts MT6522A and EL817 to realize 12VDC output and control the massage motor to work.
6. A sauna bath blanket comprising: the blanket body, the heating line, the massage bag and the controller, wherein the controller adopts a sauna bath blanket protection circuit as claimed in any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221503572.8U CN217642692U (en) | 2022-06-15 | 2022-06-15 | Sauna bath blanket protection circuit and sauna bath blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221503572.8U CN217642692U (en) | 2022-06-15 | 2022-06-15 | Sauna bath blanket protection circuit and sauna bath blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217642692U true CN217642692U (en) | 2022-10-21 |
Family
ID=83626214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221503572.8U Active CN217642692U (en) | 2022-06-15 | 2022-06-15 | Sauna bath blanket protection circuit and sauna bath blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217642692U (en) |
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2022
- 2022-06-15 CN CN202221503572.8U patent/CN217642692U/en active Active
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