CN213619482U - Car seat heating control circuit, car seat and car - Google Patents
Car seat heating control circuit, car seat and car Download PDFInfo
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- CN213619482U CN213619482U CN202022379017.6U CN202022379017U CN213619482U CN 213619482 U CN213619482 U CN 213619482U CN 202022379017 U CN202022379017 U CN 202022379017U CN 213619482 U CN213619482 U CN 213619482U
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Abstract
The utility model provides an automobile seat heating control circuit, an automobile seat and an automobile, which comprises a controller, a first resistor, a single-channel intelligent high-end power switch and an electric heater; the controller comprises a PWM control pin and an A/D conversion pin; an input pin of the single-channel intelligent high-end power switch is connected with a PWM control pin; a detection pin of the single-channel intelligent high-end power switch is connected with an A/D conversion pin; the first end of the electric heater is connected with the output end of the single-channel intelligent high-end power switch; the second end of the electric heater is grounded; the first end of the first resistor is connected with the detection pin; the second end of the first resistor is grounded. The noise interference is reduced, and meanwhile, the temperature of the seat can be controlled steplessly and accurately.
Description
Technical Field
The utility model relates to an automotive equipment technical field particularly, relates to a car seat heating control circuit, car seat and car.
Background
At present, a relay control mode is adopted for heating a traditional seat, and the mode has the defects that large current is generated instantly when the seat is started and stopped, and the current can have large influence on a vehicle power grid system and a heating pad; the relay can be switched on and off repeatedly in the temperature adjusting process, the service life of the seat can be shortened due to the fact that a large current is heated by the seat and flows through the relay, meanwhile, the switching-on and switching-off of the relay can also generate noise interference, and the use experience of one type of electric and electronic equipment such as a radio is influenced. It is desirable to provide a solution that facilitates infinitely precise control of the seat temperature while reducing noise disturbances.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a car seat heating control circuit, car seat and car for realize carrying out the technological effect of accurate control to the seat temperature when reducing noise interference.
The utility model provides a car seat heating control circuit, which comprises a controller, a first resistor, a single-channel intelligent high-end power switch and an electric heater; the controller comprises a PWM control pin and an A/D conversion pin; an input pin of the single-channel intelligent high-end power switch is connected with the PWM control pin; a detection pin of the single-channel intelligent high-end power switch is connected with the A/D conversion pin; the first end of the electric heater is connected with the output end of the single-channel intelligent high-end power switch; the second end of the electric heater is grounded; the first end of the first resistor is connected with the detection pin; the second end of the first resistor is grounded.
Furthermore, the automobile seat heating control circuit further comprises a first capacitor, and a first end of the first capacitor is connected with the detection pin; the second end of the first capacitor is grounded.
Furthermore, the automobile seat heating control circuit further comprises a second resistor, and a first end of the second resistor is connected with the PWM control pin; and the second end of the second resistor is connected with the output end of the single-channel intelligent high-end power switch.
Further, the automobile seat heating control circuit further comprises a power module and a DC/DC converter, wherein the input end of the DC/DC converter is connected with the power module; and the output end of the DC/DC converter is connected with a power pin of the single-channel intelligent high-end power switch.
Further, the model of the single-channel intelligent high-end power switch is BTS50010-1tad or BTS50010-1 tae.
In a second aspect, the present invention provides a car seat, which comprises an electric heater and a car seat heating control circuit.
Third aspect, the utility model provides an automobile, be in including dry individual car seat and setting above-mentioned car seat heating control circuit on the car seat.
The utility model discloses the beneficial effect that can realize is: the utility model provides a car seat heating control circuit controls the heating process of heater through controller and the high-end switch of single channel intelligence, can not produce the electric spark in the start-up and the stop process of heater to can not produce the noise, utilize PWM modulation wave to realize the electrodeless accurate control of temperature in the temperature regulation process.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.
Fig. 1 is a schematic diagram of a heating control circuit for an automobile seat according to an embodiment of the present invention.
Icon: 10-a car seat heating control circuit; 100-a controller; 200-single channel intelligent high-end power switch; 300-an electric heater; 400-a power supply module; 500-DC/DC converter.
Detailed Description
The technical solution in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 is a schematic diagram of a heating control circuit for an automobile seat according to an embodiment of the present invention.
In one embodiment, the embodiment of the present invention provides an automobile seat heating control circuit 10, which includes a controller 100, a first resistor R1, a single-channel intelligent high-end power switch 200, and an electric heater 300; the controller 100 includes a PWM control pin and an a/D conversion pin; an input pin of the single-channel intelligent high-side power switch 200 is connected with a PWM control pin; a detection pin of the single-channel intelligent high-end power switch 200 is connected with an A/D conversion pin; the first end of the electric heater 300 is connected with the output end of the single-channel intelligent high-end power switch 200; the second end of the electric heater 300 is grounded; a first end of the first resistor R1 is connected with the detection pin; the second terminal of the first resistor R1 is connected to ground.
In the implementation process, the model of the single-channel intelligent high-end power switch 200 is BTS50010-1tad or BTS50010-1 tae. The controller 100 can be an independent STM32 single chip microcomputer or an automobile body controller of an automobile, and an I/O pin of the controller 100 can be used as a PWM control pin. When a user needs to heat the seat, the controller 100 may send a PWM modulation wave to the single-channel intelligent high-end power switch 200 through the PWM control pin to control the single-channel intelligent high-end power switch 200, thereby controlling the electric heater 300 to heat; meanwhile, the controller 100 can adjust the single-channel intelligent high-end power switch 200 through the detection current output by the detection pin of the single-channel intelligent high-end power switch 200, and the detection signal can be more stable through the set first resistor R1.
In one embodiment, the car seat heating control circuit 10 further includes a first capacitor C1, a first terminal of the first capacitor C1 is connected to the detection pin of the single-channel intelligent high-side power switch 200; the second terminal of the first capacitor C1 is connected to ground. The signal output by the detection pin of the single-channel intelligent high-side power switch 200 can be filtered through the first capacitor C1.
In one embodiment, the heating control circuit 10 further includes a second resistor R2, wherein a first end of the second resistor R2 is connected to the PWM control pin; the second terminal of the second resistor R2 is connected to the output terminal of the single-channel intelligent high-side power switch 200. The current-limiting protection can be carried out on the single-channel intelligent high-end power switch 200 through the second resistor R2, and the single-channel intelligent high-end power switch 200 is prevented from being burnt out.
In one embodiment, the car seat heating control circuit 10 further includes a power module 400 and a DC/DC converter 500, an input terminal of the DC/DC converter 500 is connected to the power module 400; the output of the DC/DC converter 500 is connected to the power pin of the single-channel intelligent high-side power switch 200. Through the circuit, the input voltage is convenient to be converted into the working voltage required by the single-channel intelligent high-end power switch 200.
In an embodiment, the embodiment of the present invention further provides a car seat, which includes an electric heater 300 disposed on the car seat and the car seat heating control circuit 10.
In an implementation manner, the embodiment of the present invention further provides an automobile, which includes a plurality of automobile seats and the above automobile seat heating control circuit 10 disposed on the automobile seats.
To sum up, the embodiment of the utility model provides an automobile seat heating control circuit, an automobile seat and an automobile, which comprises a controller, a first resistor, a single-channel intelligent high-end power switch and an electric heater; the controller comprises a PWM control pin and an A/D conversion pin; an input pin of the single-channel intelligent high-end power switch is connected with a PWM control pin; a detection pin of the single-channel intelligent high-end power switch is connected with an A/D conversion pin; the first end of the electric heater is connected with the output end of the single-channel intelligent high-end power switch; the second end of the electric heater is grounded; the first end of the first resistor is connected with the detection pin; the second end of the first resistor is grounded. The noise interference is reduced, and meanwhile, the temperature of the seat can be controlled steplessly and accurately.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. An automotive seat heating control circuit, comprising: the device comprises a controller, a first resistor, a single-channel intelligent high-end power switch and an electric heater; the controller comprises a PWM control pin and an A/D conversion pin; an input pin of the single-channel intelligent high-end power switch is connected with the PWM control pin; a detection pin of the single-channel intelligent high-end power switch is connected with the A/D conversion pin; the first end of the electric heater is connected with the output end of the single-channel intelligent high-end power switch; the second end of the electric heater is grounded; the first end of the first resistor is connected with the detection pin; the second end of the first resistor is grounded.
2. The car seat heating control circuit according to claim 1, further comprising a first capacitor, wherein a first end of the first capacitor is connected to the detection pin; the second end of the first capacitor is grounded.
3. The car seat heating control circuit according to claim 1, further comprising a second resistor, wherein a first end of the second resistor is connected to the PWM control pin; and the second end of the second resistor is connected with the output end of the single-channel intelligent high-end power switch.
4. The vehicle seat heating control circuit according to claim 1, further comprising a power module and a DC/DC converter, wherein an input terminal of the DC/DC converter is connected to the power module; and the output end of the DC/DC converter is connected with a power pin of the single-channel intelligent high-end power switch.
5. The car seat heating control circuit of claim 1, wherein the single-channel intelligent high-end power switch is model number BTS50010-1tad or BTS50010-1 tae.
6. A car seat comprising an electric heater provided on the car seat and a car seat heating control circuit as claimed in any one of claims 1 to 5.
7. An automobile comprising a plurality of automobile seats and the automobile seat heating control circuit of any one of claims 1 to 5 provided on the automobile seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022379017.6U CN213619482U (en) | 2020-10-22 | 2020-10-22 | Car seat heating control circuit, car seat and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022379017.6U CN213619482U (en) | 2020-10-22 | 2020-10-22 | Car seat heating control circuit, car seat and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213619482U true CN213619482U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022379017.6U Active CN213619482U (en) | 2020-10-22 | 2020-10-22 | Car seat heating control circuit, car seat and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213619482U (en) |
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2020
- 2020-10-22 CN CN202022379017.6U patent/CN213619482U/en active Active
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