发热组件及吹风机
By designing switchable heating elements and circuit controls, the problem of hair dryers being incompatible due to differences in voltage standards has been solved, enabling normal use and consistent power in different countries or regions, thus improving ease of use and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DREAME TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hair dryers are not compatible with different countries or regions due to differences in voltage standards, causing inconvenience in use.
Design a heating component comprising a main circuit and first and second heating branches, which are respectively connected to input power supplies of different voltages. The heating devices are switched in parallel or series to adapt to different standard voltages. A thyristor switch is used to control the switching of the circuit state to ensure consistent power.
This technology ensures consistent power output for hair dryers across different standard voltages, improving ease of use and safety, and extending the lifespan of the heating element.
Smart Images
Figure CN224521188U_ABST
Abstract
Claims
1. A heat-generating assembly for a hair dryer, characterized by include: The main line is used to connect to the input power supply; wherein the input power supply includes a first target power supply or a second target power supply, and the voltage of the second target power supply is greater than the voltage of the first target power supply; The first heating branch is connected to the main line and has a first heating device; The second heating branch is connected to the main circuit and has a second heating device; The heating component has a first working state and a second working state; the first working state is: the input power is the first target power, the first heating branch and the second heating branch are both in the conducting state, and the first heating device and the second heating device are in the parallel working state. The second working state is as follows: the input power supply is the second target power supply, the first heating branch is turned on and the second heating branch is turned off so that the first heating device is in the working state; The resistance of the first heating element is greater than the resistance of the second heating element.
2. The heat generating component of claim 1, wherein, The main circuit has a third heating element, which is connected to the first heating branch and the second heating branch respectively. In the first working state, the third heating device is connected in series with a parallel assembly consisting of the first heating device and the second heating device connected in parallel. In the second operating state, the third heating device is connected in series with the first heating device.
3. The heat generating assembly of claim 2, wherein, The resistance of the third heating element is less than that of the first heating element and greater than that of the second heating element.
4. The heat generating assembly of claim 3, wherein, The heating component further includes a support member, wherein the first heating device, the second heating device, and the third heating device are each heating wires, and all are wound around the support member; wherein the second heating device and the third heating device are located on both sides of the first heating device.
5. The heat generating assembly of claim 4, wherein, The first heating device, the second heating device, and the third heating device have the same length and cross-sectional area, but have different resistivities.
6. The heat generating component of claim 4, wherein, The first heating device, the second heating device, and the third heating device have the same resistivity and cross-sectional area, but have different lengths.
7. The heat generating component of claim 4, wherein, The first heating device, the second heating device, and the third heating device have the same resistivity and length, but different cross-sectional areas.
8. The heating component according to any one of claims 1 to 7, characterized in that, The total resistance of the heating component in the first working state and the total resistance in the second working state satisfy a preset relationship, such that the power of the heating component in the first working state is the same as the power in the second working state.
9. A hair dryer characterized by Includes the heating element as described in any one of claims 1 to 8.
10. The hair dryer of claim 9, wherein, Also includes: A voltage detection circuit is used to detect the voltage magnitude of the input power supply; The controller is connected to the voltage detection circuit and is also connected to the control terminals of the first heating branch and the second heating branch, respectively.