Lamp for demisting by using electromagnetic waves

Abstract

The utility model discloses a lamp utilizing electromagnetic waves for demisting, which comprises a light source positioned at one end of a lamp holder, a light-emitting mirror positioned at the other end of the lamp holder, and an electromagnetic demisting device positioned in the lamp holder, the electromagnetic demisting device emits electromagnetic waves towards the light inlet side of the light outlet mirror to heat liquid on the electromagnetic demisting device. According to the lamp for demisting by utilizing the electromagnetic waves, the electromagnetic waves are emitted to the light incident side of the light emitting mirror through the electromagnetic demisting device, so that liquid on the electromagnetic waves is heated under the action of the electromagnetic waves and is evaporated and disappears, and the light emitting mirror is quickly dried. As the electromagnetic demisting device is not in direct contact with the light emitting mirror, the lighting effect is not affected, and electromagnetic waves directly act on the liquid, compared with traditional heat conduction heating, the heating efficiency is high, and the heating speed is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp demisting technical field more specifically, it relates to a kind of lamp for demisting using electromagnetic wave. BACKGROUND

[0002] When lamp just starts, air in lamp head is heated, and the temperature of light exit mirror is generally synchronized with the outside world, when the ambient temperature is low, the slightly hot air in the lamp can condense liquid on the light entrance side of light exit mirror, which greatly affects the light efficiency. At the same time, after the lamp is placed for a long time, liquid can also be condensed under the influence of natural temperature difference between the inside and outside of the lamp, which is not conducive to the immediate use of the lamp. It is necessary to use the heat generated by the lamp during operation to dry the liquid, which takes a long time.

[0003] In the prior art, a heating belt is arranged around the light exit mirror to heat the periphery of the light exit mirror, but this method dries the liquid in the center of the light exit mirror slowly and the effect is not ideal. UTILITY MODEL CONTENT

[0004] The utility model provides a lamp for demisting using electromagnetic wave to overcome at least one of the above-mentioned defects of the prior art, which can quickly demist the light exit mirror.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a lamp for demisting using electromagnetic wave, which comprises a light source at one end of a lamp head and a light exit mirror at the other end. The light emitted by the light source is emitted from the light exit mirror. The lamp further comprises an electromagnetic demisting device located in the lamp head, which emits electromagnetic waves towards the light entrance side of the light exit mirror to heat the liquid thereon.

[0006] The lamp for demisting using electromagnetic wave emits electromagnetic waves towards the light entrance side of the light exit mirror through the electromagnetic demisting device, so that the liquid thereon is heated under the action of electromagnetic waves and evaporates and disappears, quickly drying the light exit mirror. Since the electromagnetic demisting device does not directly contact the light exit mirror, it does not affect the light efficiency, and the electromagnetic waves directly act on the liquid, which has a higher heating efficiency and a faster speed than traditional heat conduction heating.

[0007] Further, the wavelength of the electromagnetic waves is 1 mm to 1 m. That is, microwaves are used to heat the liquid. The microwaves resonate with polar molecules (such as water molecules) in the liquid, causing the polar molecules to vibrate and generate heat, thereby heating the liquid.

[0008] Further, the wavelength of the electromagnetic waves is 0.77 μm to 1 mm. That is, infrared rays are used to heat the liquid. The infrared radiation directly acts on the surface of the liquid and is converted into heat energy after being absorbed, thereby heating the liquid.

[0009] Further, the electromagnetic defogging device is multiple in number and is arranged around the light exit mirror. The multiple electromagnetic defogging devices work together to uniformly defog the light exit mirror, and the power of each electromagnetic defogging device does not need to be too high.

[0010] Further, the electromagnetic defogging device has a transmitting surface for transmitting electromagnetic waves, and the transmitting surface extends around the light exit mirror. The transmitting surface can enlarge the divergence angle of the electromagnetic waves and increase the transmitting area of the electromagnetic waves to better cover the light exit mirror, thereby uniformly defogging the light exit mirror.

[0011] Further, a divergence device is further included for diverging the electromagnetic waves transmitted by the electromagnetic defogging device to cover the whole light exit mirror. The divergence device can enlarge the divergence angle of the electromagnetic waves to better cover the light exit mirror, thereby uniformly defogging the light exit mirror.

[0012] Further, the divergence device is a reflecting sheet or a frosted mirror. Different divergence devices are used for electromagnetic waves of different wavelengths to better cover the whole light exit mirror.

[0013] Further, a first temperature detector for detecting the temperature of the light exit mirror and a second temperature detector for detecting the temperature near the light exit mirror in the lamp head and a humidity detector for detecting the humidity near the light exit mirror are further included. The dew point temperature of the air in the lamp head can be calculated by using the second temperature detector and the humidity detector, and the dew point temperature is compared with the temperature of the light exit mirror detected by the first temperature detector to determine whether the air in the lamp head is likely to condense liquid on the light exit mirror.

[0014] Further, an electromagnetic wave intensity detector for detecting the remaining intensity of the electromagnetic waves transmitted by the electromagnetic defogging device after passing through the light exit mirror is further included. The electromagnetic wave intensity detector can detect whether liquid is evaporated or condensed to control the electromagnetic defogging device to be turned off or turned on, and can monitor the leakage degree of the electromagnetic waves from the light exit mirror to avoid affecting the outside.

[0015] Further, an arm for supporting the rotation of the lamp head and a case for supporting the rotation of the arm are further included. The rotation of the arm and the case can project the light emitted by the lamp head to any direction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is an exploded structural schematic view of the lamp head of the first embodiment of the utility model.

[0017] Figure 2It is the lamp cap explosion structure schematic diagram of the second embodiment of the utility model.

[0018] Figure 3 It is the structure schematic diagram of the whole lamp removes the lamp cap shell.

[0019] In the drawing,

[0020] 100, lamp cap, 110, light source, 120, light exit mirror, 200, electromagnetic defogging device, 210, emitting surface, 220, diffusing device, 230, first temperature detector, 240, second temperature detector, 250, humidity detector, 260, electromagnetic wave intensity detector, 300, arm, 400, case. DETAILED DESCRIPTION

[0021] The drawings are only for example illustration, can not be understood as the limitation of the patent, in order to better illustrate the embodiment, some components of the drawing will have omission, enlargement or reduction, and does not represent the size of actual product, for the person skilled in the art, some well-known structure and its description in the drawing can be omitted, it is understandable. The position relation described in the drawing is only for example illustration, can not be understood as the limitation of the patent.

[0022] As Figure 1 The utility model provides a kind of lamp for defogging by electromagnetic wave, including the light source 110 in the lamp cap 100 one end and the light exit mirror 120 in the other end, the light emitted by the light source 110 is shot from the light exit mirror 120, further include the electromagnetic defogging device 200 in the lamp cap 100, the electromagnetic defogging device 200 emits electromagnetic wave towards the light entry side of the light exit mirror 120 and heats the liquid thereon.

[0023] The lamp for defogging by electromagnetic wave emits electromagnetic wave towards the light entry side of the light exit mirror 120 by electromagnetic defogging device 200, so that the liquid thereon is heated under electromagnetic wave, to evaporate and disappear, the light exit mirror 120 is quickly dried. Since electromagnetic defogging device 200 and light exit mirror 120 are not directly contacted, so it will not affect light efficiency, and electromagnetic wave directly acts on liquid, relative to traditional heat conduction heating, heating efficiency is high, and speed is also faster.

[0024] The liquid can be water droplet or oil mist.

[0025] In the preferred embodiment of the utility model, the wavelength of electromagnetic wave is 1 mm to 1 m. That is, liquid is heated by microwave, resonance occurs between microwave and polar molecule (such as water molecule) in liquid, so that polar molecule vibrates to generate heat, thereby heating liquid.

[0026] Preferably, the wavelength of electromagnetic wave is 12.2 cm.

[0027] In the preferred embodiment of the utility model, the electromagnetic wave wavelength is 0.77 μm to 1 mm. That is, the liquid is heated by infrared rays, and the infrared radiation directly acts on the liquid surface, is absorbed and converted into heat energy, thereby heating the liquid.

[0028] As Figure 2 In the preferred embodiment of the utility model, the electromagnetic demisting device 200 is multiple in number and is arranged around the light exit mirror 120. Multiple electromagnetic demisting devices 200 work cooperatively to demist the light exit mirror 120 more uniformly, and the power of a single electromagnetic demisting device 200 does not need to be too high.

[0029] In the embodiment, the number of electromagnetic demisting devices 200 is four, and they are arranged uniformly around the light exit mirror 120.

[0030] Preferably, the electromagnetic waves emitted by the electromagnetic demisting device 200 are superimposed in the middle region of the light exit mirror 120 to heat the liquid in the region more quickly, because the liquid condensed in the region is usually the most and has the greatest impact on the light efficiency.

[0031] As Figure 1 In the preferred embodiment of the utility model, the electromagnetic demisting device 200 has a transmitting surface 210 for emitting electromagnetic waves, and the transmitting surface 210 extends around the light exit mirror 120. The transmitting surface 210 can expand the divergence angle of the electromagnetic waves and increase the emission area of the electromagnetic waves to better cover the light exit mirror 120, thereby demisting the light exit mirror 120 more uniformly.

[0032] As Figure 2 In the preferred embodiment of the utility model, a divergence device 220 for diverging the electromagnetic waves emitted by the electromagnetic demisting device 200 to cover the entire light exit mirror 120 is further included. The divergence device 220 can expand the divergence angle of the electromagnetic waves so that the electromagnetic waves can better cover the light exit mirror 120, thereby demisting the light exit mirror 120 more uniformly.

[0033] Preferably, the middle region of the light exit mirror 120 has a greater electromagnetic wave intensity than the peripheral region by using the transmitting surface 210 or the divergence device 220 to heat the liquid in the middle region more quickly, because the liquid condensed in the middle region is usually the most and has the greatest impact on the light efficiency.

[0034] In the preferred embodiment of the utility model, the divergence device 220 is a reflective sheet or a frosted mirror. Different wavelengths of electromagnetic waves are matched with corresponding divergence devices 220 to better cover the entire light exit mirror 120 with electromagnetic waves.

[0035] Generally, for electromagnetic waves with a wavelength of 0.77 μm to 1 mm, the diffusing device 220 is an abrasive mirror, and for electromagnetic waves with a wavelength of 1 mm to 1 m, the diffusing device 220 is a reflecting sheet. The reflecting sheet does not necessarily have to be a very smooth mirror surface, as long as it can reflect electromagnetic waves.

[0036] In the preferred embodiment of the present application, a first temperature detector 230 is used to detect the temperature of the light exit mirror 120, and a second temperature detector 240 is used to detect the temperature near the light exit mirror 120 inside the lamp holder 100, and a humidity detector 250 is used to detect the humidity near the light exit mirror 120 inside the lamp holder 100. The dew point temperature of the air inside the lamp holder 100 can be calculated using the second temperature detector 240 and the humidity detector 250. By comparing the dew point temperature with the temperature of the light exit mirror 120 detected by the first temperature detector 230, it can be determined whether the air inside the lamp holder 100 is likely to condense liquid on the light exit mirror 120.

[0037] In the present embodiment, the first temperature detector 230 is attached to the edge of the light exit mirror 120, and the second temperature detector 240 and the humidity detector 250 are located at a distance of more than 1 cm from the light exit mirror 120, so as to avoid interference from the light exit mirror 120.

[0038] In the preferred embodiment of the present application, an electromagnetic wave intensity detector 260 is located outside the lamp holder 100 and is used to detect the remaining intensity of the electromagnetic waves emitted by the electromagnetic de-fogging device 200 after passing through the light exit mirror 120. The electromagnetic wave intensity detector 260 can detect whether liquid is evaporating or condensing, so as to control the electromagnetic de-fogging device 200 to be turned off or turned on, and can also monitor the leakage of electromagnetic waves from the light exit mirror 120, so as to avoid affecting the outside world.

[0039] In the present embodiment, the electromagnetic wave intensity detector 260 is located directly opposite the electromagnetic de-fogging device 200, and detects the intensity of the electromagnetic waves emitted by the electromagnetic de-fogging device 200 after directly passing through the light exit mirror 120, rather than the intensity of the electromagnetic waves after multiple reflections inside the lamp holder 100, so the detection is more accurate.

[0040] As Figure 3 In the preferred embodiment of the present application, an arm 300 is used to support the rotation of the lamp holder 100, and a case 400 is used to support the rotation of the arm 300. Through the rotation support of the arm 300 and the case 400, the light emitted by the lamp holder 100 can be projected in any direction.

[0041] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A luminaire for defogging using electromagnetic waves, characterized by, The lamp head (100) includes a light source (110) at one end and a light exit mirror (120) at the other end, the light source (110) emits light which exits from the light exit mirror (120), and further includes an electromagnetic defogging device (200) in the lamp head (100), the electromagnetic defogging device (200) emits electromagnetic waves towards the light entrance side of the light exit mirror (120) to heat the liquid thereon.

2. The luminaire that defogs with electromagnetic waves according to claim 1, characterized by, The electromagnetic waves have a wavelength of 1 mm to 1 m.

3. The fixture to defog using electromagnetic wave according to claim 1, characterized by, The electromagnetic waves have a wavelength of 0.77 μm to 1 mm.

4. The fixture to defog using electromagnetic wave according to claim 1, characterized by, The electromagnetic defogging device (200) is multiple in number and is arranged around the light exit mirror (120).

5. The fixture to defog using electromagnetic wave according to claim 1, characterized by, The electromagnetic defogging device (200) has an emitting surface (210) for emitting electromagnetic waves, the emitting surface (210) extends around the light exit mirror (120).

6. The fixture to defog using electromagnetic wave according to claim 1, characterized by, Further includes a diverging device (220) for diverging the electromagnetic waves emitted by the electromagnetic defogging device (200) to cover the whole light exit mirror (120).

7. The luminaire of claim 6, wherein, The diverging device (220) is a reflective sheet or a frosted mirror.

8. The fixture to defog using electromagnetic wave according to claim 1, characterized by, Further includes a first temperature detector (230) for detecting the temperature of the light exit mirror (120), a second temperature detector (240) for detecting the temperature near the light exit mirror (120) in the lamp head (100), and a humidity detector (250) for detecting the humidity near the light exit mirror (120) in the lamp head (100).

9. The fixture to defog using electromagnetic wave according to claim 1, characterized by, Further includes an electromagnetic wave intensity detector (260) outside the lamp head (100) for detecting the intensity of the electromagnetic waves emitted by the electromagnetic defogging device (200) after passing through the light exit mirror (120).

10. The fixture to defog using electromagnetic wave according to claim 1, characterized by, Further includes an arm (300) for supporting the rotation of the lamp head (100), and a cabinet (400) for supporting the rotation of the arm (300).

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