阅读说明：本技术 可以适配多种电压的电加热系统及加热方法 (Electric heating system capable of adapting to various voltages and heating method ) 是由 杨群振 曾丽 吕玮 綦悦 史华杰 于 2020-12-03 设计创作，主要内容包括：本发明公开了一种可以适配多种电压的电加热系统及加热方法。所述电加热系统包括：多个发热体、控制器、变频充电元件和至少一个电连接接头,其中,所述控制器与所述多个发热体电连接,所述多个发热体并联设置,以及,所述控制器还经所述变频充电元件与所述至少一个电连接接头电连接,以使所述电连接接头能够与不同额定功率的电源连接并按照预设的通电逻辑向所述多个发热体供电。本发明实施例提供的一种可以适配多种电压的电加热系统及加热方法,采用特有的加热逻辑,可适配多电压类型输入,且多片独立控温；且可适配所有的外部电源,保证10W、18W、40W外部电源都可以在额定功率下运行。(The invention discloses an electric heating system capable of adapting to various voltages and a heating method. The electric heating system includes: the heating device comprises a plurality of heating bodies, a controller, a variable-frequency charging element and at least one electric connection joint, wherein the controller is electrically connected with the heating bodies, the heating bodies are arranged in parallel, and the controller is also electrically connected with the electric connection joint through the variable-frequency charging element, so that the electric connection joint can be connected with power supplies with different rated powers and supplies power to the heating bodies according to preset electrifying logic. The electric heating system and the heating method which can adapt to various voltages provided by the embodiment of the invention adopt the special heating logic, can adapt to multi-voltage type input, and have multiple independent temperature control; and all external power supplies can be adapted, and the 10W, 18W and 40W external power supplies can be operated under rated power.)

1. An electrical heating system adaptable to a plurality of voltages, comprising: a plurality of heating elements, a controller and at least one electrical connection joint, wherein the controller is electrically connected with the plurality of heating elements, the plurality of heating elements are arranged in parallel, and,

the controller is further electrically connected with at least one electric connection joint, and when the electric connection joint is connected with an external power supply, the controller can enable the external power supply to distribute power to the heating bodies according to preset electrifying logic, so that the output power of the external power supply does not exceed the rated power of the external power supply.

2. An electric heating system adaptable to a plurality of voltages according to claim 1, characterized in that: the plurality of heating elements are respectively and independently electrically connected with the controller and can independently generate heat under the control of the controller.

3. An electric heating system adaptable to a plurality of voltages according to claim 1 or 2, characterized in that: the heating temperatures and/or heating times of the plurality of heating elements may be the same or different.

4. An electric heating system adaptable to a plurality of voltages according to claim 1, characterized in that: the controller comprises a quick-charging protocol chip, a single chip microcomputer and a plurality of control circuit modules, wherein the single chip microcomputer is respectively connected with the quick-charging protocol chip and the plurality of control circuit modules, and the plurality of control circuit modules are respectively connected with the plurality of heating bodies.

5. An electric heating system adaptable to a plurality of voltages according to claim 4, comprising: the controller is respectively connected with the heating units, wherein each heating unit comprises one or more heating bodies.

6. An electric heating system adaptable to a plurality of voltages according to claim 1, characterized in that: the heating body comprises an electric heating film.

7. An electric heating system adaptable to a plurality of electric voltages as set forth in claim 1, including a plurality of electric connection terminals including USB terminals.

8. An electric heating system adaptable to a plurality of voltages as set forth in claim 1, further comprising: and the temperature sensors are respectively connected with the heating bodies and the controller.

9. An electrical heating method adaptable to a plurality of voltages, comprising:

providing an electrical heating system adaptable to a plurality of voltages according to any one of claims 1-8 and electrically connecting the electrical connection joint with an external power source;

and at least according to the rated power of the external power supply and/or the area of each heating element, supplying power to the plurality of heating elements according to a preset electrifying logic and distributing the power so as to enable the plurality of heating elements to independently heat, wherein the output power of the external power supply does not exceed the rated power of the external power supply.

10. The electric heating method capable of adapting to multiple voltages according to claim 9, specifically comprising: periodically supplying power to the plurality of heating elements in sequence to cause the plurality of heating elements to periodically generate heat, or simultaneously supplying power to the plurality of heating elements to cause the plurality of heating elements to simultaneously generate heat, wherein the time for supplying power to the plurality of heating elements is the same or different;

preferably, the total current in the plurality of heating elements does not exceed the rated current of the external power supply;

preferably, the rated current of the external power supply is 2A, and the rated voltage is 5-20V;

preferably, when the voltage of the external power supply is 20V, the heating time of each heating element in one power supply cycle is as follows: tn/(S1 + S2+ … + Sn), and the heating power of each heating element is: pn × tn U²X tn/Rn, wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements;

preferably, when the voltage of the external power supply is 9V, in a power supply cycle, the heating time of each heating element is as follows: tn ═ 2 × Sn)/(S1+ S2+ … + Sn), and the heating power per heat-generating body was: pn × tn U²X tn/Rn, wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of an external power supply, and Rn is the resistance of the heating elements;

preferably, when the voltage of the external power supply is 5V, in one power supply cycle, the heating duration ratio tn of each heating element is 1, and the heating power of each heating element is: pn × tn U²X tn/Rn, where n is the number of heating elements, n is 2 or more, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of an external power supply, and Rn is the resistance of the heating elements.

Technical Field

The invention relates to an electric heating system, in particular to an electric heating system capable of adapting to various voltages and a heating method, and belongs to the technical field of electric heating.

Background

With the wide application of intelligent heating clothing products in the market, the requirements of users on the temperature rising speed and the heating area are higher and higher. However, the rated output of the conventional power bank in the market is mostly 5V/2A, and due to the limitation of the output capacity of the power supply of the heating system, the heating area and the heating speed of the heating system cannot meet the requirement of people on the heating experience.

Disclosure of Invention

The invention mainly aims to provide an electric heating system and a heating method which can adapt to various voltages so as to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:

the embodiment of the invention provides an electric heating system capable of adapting to various voltages, which is characterized by comprising the following components: a plurality of heaters, a controller and at least one electrical connection joint, wherein the controller is electrically connected with the plurality of heaters, the plurality of heaters are arranged in parallel, and,

the controller is further electrically connected with at least one electric connection joint, and when the electric connection joint is connected with an external power supply, the controller can enable the external power supply to distribute power to the heating bodies according to preset electrifying logic, so that the output power of the external power supply does not exceed the rated power of the external power supply.

The embodiment of the invention also provides an electric heating method capable of adapting to various voltages, which comprises the following steps:

providing the electric heating system which can be adapted to various voltages, and electrically connecting the electric connection joint with an external power supply;

compared with the prior art, the invention has the advantages that the power is supplied to the plurality of heating elements according to the preset electrifying logic and the power distribution is carried out at least according to the rated power of the external power supply and/or the heating area corresponding to each heating element, so that the plurality of heating elements independently generate heat, and the output power of the external power supply does not exceed the rated power of the external power supply, and the invention comprises the following steps:

1) the electric heating system and the heating method which can adapt to various voltages provided by the embodiment of the invention adopt the special heating logic, can adapt to multi-voltage type input, and have multiple independent temperature control;

2) the invention adopts special heating logic, can adapt to all external power supplies, and ensures that the external power supplies of 10W, 18W and 40W can operate under rated power;

3) the invention adopts special heating logic, and can not cause the over-power output of the external power supply due to the change of the input voltage.

Drawings

Fig. 1 and fig. 2 are schematic structural diagrams of an electric heating system capable of adapting to various voltages provided in an exemplary embodiment of the present invention;

fig. 3 is a schematic diagram of the energization logic of an electric heating system capable of adapting to various voltages in embodiment 1 of the present invention;

fig. 4 is a schematic diagram of the energization logic of an electric heating system capable of adapting to various voltages in embodiment 2 of the present invention;

fig. 5 is a schematic diagram of the energization logic of an electric heating system capable of adapting to various voltages in embodiment 3 of the present invention.

Detailed Description

In view of the deficiencies in the prior art, the inventors of the present invention have made extensive studies and extensive practices to provide technical solutions of the present invention. The technical solution, its implementation and principles, etc. will be further explained as follows.

The embodiment of the invention provides an electric heating system and a heating method which can be adapted to various voltages, and the electric heating system and the heating method can realize the effects of quick heating and large-area heating by calling the high-voltage rated output of 20V/2A or 9V/2A of an external power supply to heat through a quick charge calling technology, and simultaneously can be compatible with a 5V/2A power supply system on the market through a special heating logic.

The embodiment of the invention provides an electric heating system capable of adapting to various voltages, which comprises a plurality of heating bodies, a controller and at least one electric connection joint, wherein the controller is electrically connected with the plurality of heating bodies, the plurality of heating bodies are arranged in parallel,

the controller is further electrically connected with at least one electric connection joint, and when the electric connection joint is connected with an external power supply, the controller can enable the external power supply to distribute power to the heating bodies according to preset electrifying logic, so that the output power of the external power supply does not exceed the rated power of the external power supply.

Further, the plurality of heating elements are respectively and independently electrically connected with the controller and can independently generate heat under the control of the controller.

Further, the heat generation temperatures and/or heat generation times of the plurality of heat generation elements may be the same or different.

Further, the controller includes protocol chip, singlechip and a plurality of control circuit module fill soon, the singlechip respectively with fill soon protocol chip, a plurality of control circuit module are connected, a plurality of control circuit module respectively with a plurality of heat-generating bodies are connected.

Further, the electric heating system capable of adapting to various voltages comprises a plurality of heating units, and the controller is respectively connected with the plurality of heating units, wherein each heating unit comprises one or more heating bodies.

Further, the heating body comprises an electric heating film.

Further, the electric heating system capable of adapting to various voltages comprises a plurality of electric connection joints, and the electric connection joints comprise USB joints.

Further, the electric heating system capable of adapting to various voltages further comprises: and the temperature sensors are respectively connected with the heating bodies and the controller.

The embodiment of the invention also provides an electric heating method capable of adapting to various voltages, which comprises the following steps:

providing the electric heating system which can be adapted to various voltages, and electrically connecting the electric connection joint with an external power supply;

and at least according to the rated power of the external power supply and/or the area of each heating element, supplying power to the plurality of heating elements according to a preset electrifying logic and distributing the power so as to enable the plurality of heating elements to independently heat, wherein the output power of the external power supply does not exceed the rated power of the external power supply.

Further, the electric heating method capable of adapting to various voltages specifically comprises the following steps: and periodically supplying power to the plurality of heating elements in sequence so that the plurality of heating elements periodically generate heat in sequence, or simultaneously supplying power to the plurality of heating elements so that the plurality of heating elements generate heat simultaneously, wherein the time for supplying power to the plurality of heating elements is the same or different.

Further, the total current in the plurality of heat generating bodies does not exceed the rated current of the power supply.

Furthermore, the rated current of the power supply is 2A, and the rated voltage is 5-20V.

In some specific embodiments, when the voltage of the external power source is 20V, the heating duration of each heating element in one power supply cycle is: tn/(S1 + S2+ … + Sn), and the heating power of each heating element is: pn × tn U²The power factor is multiplied by x tn/Rn, wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements;

in some specific embodiments, when the voltage of the external power source is 9V, the heating duration of each heating element in one power supply cycle is: tn ═ 2 × Sn)/(S1+ S2+ … + Sn), and the heating power per heat-generating body was: pn × tn U²X tn/Rn, wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements.

In some more specific embodiments, when the voltage of the external power supply is 5V, in a power supply cycle, the heating duration time ratio tn of each heating element is 1, and the heating power of each heating element is: the function of Wn ═ Pntn＝U²X tn/Rn, where n is the number of heating elements, n is 2 or more, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements.

The technical solution, the implementation process and the principle thereof will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, an electric heating system adaptable to various voltages includes three heating elements 20, 30, 40, a controller 10 and an electric connection joint 50, the controller 10 is electrically connected to the three heating elements 20, 30, 40, respectively, the three heating elements 20, 30, 40 are arranged in parallel, and,

the controller 10 is further electrically connected to the electrical connector 0, and when the electrical connector 50 is connected to an external power source, the controller 10 can distribute power from the external power source to the three heating elements 20, 30, and 40 according to a preset power-on logic so that the output power of the external power source does not exceed the rated power of the external power source, wherein the three heating elements 20, 30, and 40 are individually and electrically connected to the controller 10, and can individually generate heat under the control of the controller 10.

Specifically, the heating elements 20, 30 and 40 comprise electric heating films, and the electric connecting joint 50 comprises a USB interface 51 and a Type-c interface 52.

Specifically, the controller 10 includes: the device comprises a quick-charging protocol chip 11, a single chip microcomputer 12 and three control circuit modules 13, wherein the single chip microcomputer 12 is respectively connected with the quick-charging protocol chip 11 and the three control circuit modules 13, and the three control circuit modules 13 are respectively correspondingly connected with three heating bodies 20, 30 and 40.

Specifically, the single chip microcomputer 12 in the controller 10 is in communication connection with an external power supply through the quick charging protocol chip 11 via the D +, D-signal pin/Type-c interface 52 CC of the USB interface 51, the USB interface 51 can output 9V/5V voltage for heating of the heating element according to the standard communication protocol PD2.0 in the quick charging industry, and the Type-c interface 52 can output 20V/9V/5V voltage for heating of the heating element according to the CC interface communication protocol; meanwhile, a plurality of groups of heating control circuit modules 13 are arranged in the controller 10, the current or voltage output to the heating elements can be independently controlled, and the temperature of each group of heating elements is fed back to the single chip microcomputer, so that the purpose of independently controlling the temperature of each heating element is realized; simultaneously, the heating body is heated according to a special heating logic, so that the heating experience is excellent when the voltage is 20V, the heating experience is good when the voltage is 9V, and the heating experience is good when the voltage is 5V.

Specifically, the electric heating system capable of adapting to various voltages further comprises: and the plurality of temperature sensors are respectively connected with the plurality of heating bodies and the controller.

The electric heating system capable of being adapted to various voltages provided by the embodiment of the invention supports the PD3.0 quick charging function, because a conventional charger supports type-A output type-c interface output on the market, if the charger supports the quick charging function, the electric heating system capable of being adapted to various voltages is used as shown in fig. 1, a type-c electric connection joint can lead out a 20V &9V &5V power supply to supply power to the heating system, and a type-A electric connection joint (namely the USB interface) can lead out a 9V/5V power supply to supply power to the heating system.

Because when current conventional treasured output voltage that charges is 20V/9V/5V, rated current is 2A, so need control heat-generating body 20, 30, 40 resistance during the design, when guaranteeing that make full use of treasured power that charges, can not make treasured output current that charges exceed 2A, otherwise probably cause the treasured damage that charges or other bad phenomena produce.

In some specific embodiments, when the voltage of the external power source is 20V, the heating duration of each heating element in one power supply cycle is: tn/(S1 + S2+ … + Sn), and the heating power of each heating element is: pn × tn U²×tn/Rn＝20²The total power of the heating elements is obtained by the same principle that x tn/10 is 40 tn:

∑_Ww1+ W2+ W3+ … + Wn × (S1+ S2+ S3+ … + Sn)/(S1+ S2+ S3+ … + Sn) × 40W; wherein n is the number of the heating bodies, n is more than or equal to 2, Sn is the area of the heating body, Wn is the heating power of the heating body, Pn is the rated power of the heating body, Rn is the resistance of the heating body(ii) a Because the conventional quick-charging charger outputs 20V voltage, the current is only 2A at most, namely the power is 40W, the output power of the charger can be fully utilized when 20V power supply is used according to the heating logic, and meanwhile, the phenomenon that the current exceeds 2A can not occur.

In some specific embodiments, when the voltage of the external power source is 9V, the heating duration of each heating element in one power supply cycle is: tn ═ 2 × Sn)/(S1+ S2+ … + Sn), and the heating power per heat-generating body was: pn × tn U²×tn/Rn＝9²X tn/10 ═ 8.1 tn; the total heating power of the plurality of heating elements is obtained by the same method:

∑_Ww1+ W2+ W3+ … + Wn-8.1 × (S1+ S2+ S3+ … + Sn)/(S1+ S2+ S3+ … + Sn): 8.1W; wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements; because the conventional quick-charging charger outputs 9V voltage, the current is only 2A at most, namely the power is 18W, the output power of the charger can be fully utilized when 9V power supply is used according to the heating logic, and meanwhile, the phenomenon that the current exceeds 2A can not occur.

In some more specific embodiments, when the voltage of the external power supply is 5V, in a power supply cycle, the heating duration time ratio tn of each heating element is 1, and the heating power of each heating element is: pn × tn U²×tn/Rn＝5²The total power of heating of the plurality of heating elements is obtained by the same method as that of the x tn/10 which is 2.5 tn:

∑_Ww1+ W2+ W3+ … + Wn 2.5 × (S1+ S2+ S3+ … + Sn)/(S1+ S2+ S3+ … + Sn) ═ 2.5 nW; wherein n is the number of the heating elements, n is more than or equal to 2, Sn is the area of the heating elements, Wn is the heating power of the heating elements, Pn is the rated power of the heating elements, and Rn is the resistance of the heating elements.

Specifically, when the power of the power bank is fully utilized for heating, the total current needs to be ensured to be smaller than the rated current 2A of the power bank, so that the power bank is prevented from being used in an over-power mode, the power bank is prevented from being damaged or other adverse consequences are caused, and therefore the total resistance values of the heat-generating body 20, the heat-generating body 30 and the heat-generating body 40 are guaranteed to be larger than 10R.

Specifically, assuming that the area of the heating element 30 (which may be defined as the heating plate 2, the same below) is 2 times the area of the heating element 20 (which may be defined as the heating plate 1, the same below) and the heating element 40 (which may be defined as the heating plate 3, the same below), in order to achieve the same heating effect, 1/2 is required to act on the heating element 2, 1/4 is required to act on the heating element 1, and 1/4 is required to act on the heating element 2.

Example 1

Referring to fig. 3, when a charger with a rated voltage of 20V and a rated current of 2A is used as an external power supply, the power-on logic of the electric heating system capable of adapting to various voltages is as follows: and starting heating by the heating plate 1 for 0-0.25s, starting heating by the heating plate 2 for 0.25-0.75s, and starting heating by the heating plate 3 for 0.75-1s, so that the circulation is realized, the rated power of the charger 40W can be completely used, and meanwhile, no overcurrent phenomenon occurs.

Example 2

Referring to fig. 4, when a charger with a rated voltage of 9V and a rated current of 2A is used as an external power supply, the power-on logic of the electric heating system capable of adapting to various voltages is as follows: and (3) heating by starting the heating sheet 1 for 0-0.5s, heating by starting the heating sheet 2 for 0-1s and heating by starting the heating sheet 3 for 0.5-1 s in a circulating manner, so that the rated power of the charger 18W can be completely used, and meanwhile, no overcurrent phenomenon occurs.

Example 3

Referring to fig. 5, when the charger with a rated voltage of 5V and a rated current of 2A is used as the external power supply, the power density of the heating element is low when 5V is used for supplying power, so that the heating sheets 1, 2 and 3 are all heated at full power, and the total power is about 7.5W, so that the power of the charger can be fully utilized.

The electric heating system and the heating method which can adapt to various voltages provided by the embodiment of the invention adopt the special heating logic, can adapt to multi-voltage type input, and have multiple independent temperature control sheets;

the invention adopts special heating logic, can adapt to all external power supplies, and ensures that the external power supplies of 10W, 18W and 40W can operate under rated power;

in addition, the invention adopts the specific heating logic, and the over-power output of the external power supply caused by the change of the input voltage can not be caused.

It should be understood that the above-mentioned embodiments are merely illustrative of the technical concepts and features of the present invention, which are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and therefore, the protection scope of the present invention is not limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.