Fan control device and lamp
A control device and fan technology, applied in pump control, lighting device, cooling/heating device of lighting device, etc., can solve the problems of poor cooling effect of fan, abnormal start-up and stop, etc.
Active Publication Date: 2021-07-30
GUANGZHOU FINEART LIGHTING
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Problems solved by technology
[0002]There are many kinds of lamps and lanterns, which are used frequently in daily life. In some application scenarios, lamps will heat up after a period of use. When the temperature reaches a certain value, the lamp cannot be used normally, so a fan is needed to dissipate heat for the lamp. However, after a period of use, most fans cannot start normally due to the aging of their internal coils, and the fan will be canceled directly. Rotate at full speed with the function of speed regulation change, or increase the driving voltage of the driving fan, so that the normal working voltage range of the fan is reduced, that is, close to the maximum normal working voltage, so that the fan appears "sneak stop" phenomenon under the lower normal driving voltage, making the fan The heat dissipation effect is poor
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[0040] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.
[0041] The fan control device provided by this application can be applied to such as figure 1 shown in the application environment. Among them, multiple fans 200 can jointly dissipate heat for one lamp 100, the start-up voltage of multiple fans can be the same or different, and different fans 200 can also dissipate heat for different lamps 100 respectively; it should be noted that , The fan 200 can also dissipate heat for other equipment, which is not limited in this application.
[0042] In one embodiment, such as figure 2 As shown, a fan control device is provided, w...
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The invention relates to a fan control device and a lamp. The control device comprises a control module, a driving module, a capacitance compensation module and a detection module. The detection module sends a first indication signal to the control module when a fan fails to start according to an initial start voltage; and the control module determines a target compensation voltage under the indication of the first indication signal, and adjusts the output voltage of the capacitance compensation module to the target compensation voltage, so that the driving module conducts the negative electrode of the fan with the ground according to the target compensation voltage, a voltage difference is generated between the positive electrode and the negative electrode of the fan, and then the fan starts to rotate. According to the fan control circuit, under the condition that the starting voltage required by the fan is increased due to aging of the fan, the driving module can be conducted in a mode of performing voltage compensation on the driving module, so that the fan can be started, and the problem that the fan cannot be started is solved.
Description
technical field [0001] The present application relates to the technical field of fan control, in particular to a fan control device and a lamp. Background technique [0002] There are many types of lamps, and their frequency of use in daily life is also very high. In some application scenarios, the lamps will heat up after a period of use. When the temperature of the lamps reaches a certain value, the lamps cannot be used normally, so Fans are needed to dissipate heat from lamps, but most fans cannot start normally due to the aging of their internal coils after being used for a period of time. The fan will directly cancel the speed adjustment function and rotate at full speed, or increase the driving voltage of the drive fan. The range of the normal working voltage of the fan is narrowed, that is, it is close to the maximum normal working voltage, so that the phenomenon of "stealing" occurs under the lower normal driving voltage of the fan, and the heat dissipation effect of...
Claims
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Login to View More IPC IPC(8): F04D27/00F21V29/61
CPCF04D27/00F04D27/001F04D27/004F04D27/008F21V29/61
Inventor 刘建华王惠均江炯同张昭荣
Owner GUANGZHOU FINEART LIGHTING