Infrared heat source covering visible light and infrared bands

Abstract

The utility model belongs to the technical field of infrared heat sources, and particularly discloses an infrared heat source covering visible light and infrared wave bands, which comprises a casing, a reflecting cover, an infrared light source, a halogen tungsten lamp and an LED (light-emitting diode) projection lamp, the casing is provided with an opening, the reflecting cover is mounted in the opening in an embedded manner, the infrared light source is mounted in the reflecting cover, and the halogen tungsten lamp is mounted in the LED projection lamp. The halogen tungsten lamp, the LED projection lamp and the like are installed on the two sides of the opening in an embedded mode respectively, the bottom of the shell is provided with a power supply interface of a 220V alternating current power supply, and the infrared light source, the halogen tungsten lamp and the LED projection lamp are all electrically connected to the power supply interface. According to the utility model, visible light and infrared full-band (0.37-14 [mu] m band) radiation output can be realized, the infrared light source is fixed in the middle of the shell through the reflecting cover to generate medium-long wave infrared radiation output of 3-14 [mu] m band, and the LED projection lamp is arranged on the right side of the infrared light source to realize visible light output and generate 0.4-0.8 [mu] m visible light band; the halogen tungsten lamp is arranged on the left side of the infrared light source, and short-wave infrared radiation output with the wave band of 0.8-3 microns is generated.

Description

Technical Field

[0001] This utility model belongs to the field of infrared heat source technology, specifically relating to an infrared heat source covering the visible light and infrared bands. Background Technology

[0002] According to Planck's law, the intensity of an object's thermal radiation is related to its temperature and wavelength; objects at different temperatures have different radiation intensities in different wavelength bands. An infrared heat source is a heat source that emits infrared radiation, and its main function is to utilize the thermal effect of infrared radiation to achieve functions such as heating, detection, and imaging.

[0003] With the advancement of technology, the application fields of infrared heat sources are constantly expanding, ranging from industrial manufacturing and medical diagnosis to security monitoring. However, traditional infrared heat source equipment has certain limitations in use. At a specific temperature, the radiation energy of conventional infrared heat sources is mainly concentrated in a specific wavelength range, making it difficult to cover the entire visible and infrared wavelengths.

[0004] Currently, although some technologies can extend the spectral output range of infrared heat sources, these technologies often suffer from problems such as low efficiency, high cost, and complex equipment. For example, nonlinear optics and quantum cascade technologies can generate infrared lasers in specific spectral bands, but these technologies have low conversion efficiency, making it difficult to achieve high-power, full-spectrum infrared radiation output.

[0005] To address the issue that existing infrared heat sources cannot cover the entire visible and infrared bands, the structure of the infrared heat source needs to be improved to solve the current technical problem. Utility Model Content

[0006] The purpose of this invention is to provide an infrared heat source that covers the visible and infrared bands, enabling full-band (0.37μm~14μm band) radiation output in both visible and infrared bands.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an infrared heat source covering the visible light and infrared bands, comprising a housing and a reflector detachably mounted on the housing, an infrared light source, a halogen tungsten lamp, and an LED floodlight. One end of the housing has an opening, the reflector is embedded in the opening, the infrared light source is detachably mounted inside the reflector, and the halogen tungsten lamp and LED floodlight are respectively embedded on both sides of the opening. The bottom of the housing has a 220V AC power supply interface, and the side wall of the housing has a 220V power indicator light to show whether the power is on. The infrared light source, halogen tungsten lamp, and LED floodlight are all electrically connected to the power supply interface.

[0008] To better realize this utility model, the top and bottom surfaces of the shell are both designed with a hollow structure.

[0009] To better realize this utility model, the reflector is composed of two symmetrically arranged stretched parabolic structures with two reflection focal points. Each reflection focal point is provided with an infrared light source, and the reflection angle of the two infrared light sources is 183.4°.

[0010] To better realize this utility model, the side wall of the housing is provided with an infrared power supply indicator light to display the working status of the infrared light source, and an infrared low-level control key and an infrared high-level control key to control the infrared light source. When the infrared low-level control key is activated, only one infrared light source works; when the infrared high-level control key is activated, both infrared light sources work simultaneously.

[0011] To better realize this utility model, the LED floodlight is composed of highly integrated LED beads, an optical lens group and a 12V power supply system. The side wall of the housing is provided with a visible light power supply indicator to display the working status of the LED floodlight and a visible light control key to control the LED floodlight.

[0012] To better realize this utility model, two halogen lamps are provided, including 15W and 20W power, both of which are composed of miniature halogen lamps and miniature light cups. The miniature light cups are made of quartz aluminum-coated reflective film. The side wall of the housing is provided with a shortwave power supply indicator to display the working status of the halogen lamp, a shortwave low-range control key to control the 15W halogen lamp, and a shortwave high-range control key to control the 20W halogen lamp.

[0013] To better realize this utility model, the interior of the infrared light source is composed of a core rod and a heating wire wound around the core rod. The heating wire is made of molybdenum wire, and the core rod is made of silicon nitride. The exterior of the infrared light source is made of high-temperature ceramic.

[0014] To better realize this utility model, one end of the infrared light source is provided with a ceramic thread, and one side of the reflector is provided with a threaded hole adapted to the ceramic thread.

[0015] To better realize this utility model, a protective net is fixedly provided at the opening, and the mesh size of the protective net is 40mm×40mm.

[0016] To better realize this utility model, the power supply interface adopts a tri-proof aviation plug.

[0017] Beneficial effects:

[0018] This invention can achieve full-band (0.37μm~14μm band) radiation output in the visible and infrared bands. The infrared light source is fixed in the middle of the housing by a reflector, generating mid- and long-wave infrared radiation output in the 3μm~14μm band. An LED floodlight is set to the right of the infrared light source to achieve visible light output, generating visible light in the 0.4μm~0.8μm band. After being focused by a standard lens group, it is projected remotely in a directional manner. A halogen tungsten lamp is set to the left of the infrared light source as a near-infrared enhanced light source, generating short-wave infrared radiation output in the 0.8μm~3μm band.

[0019] The infrared heat source is designed by detachably mounting the infrared light source inside a reflector, which forms a working cavity for the infrared light source. This creates a semi-enclosed working cavity that protects the light source from external wind and rain, reduces disturbances caused by airflow, and ensures consistent operating temperature. The reflector has a special structural design that optimizes light utilization and convergence angle within the constraints of size and weight. Each infrared light source has a reflection angle of 183.4°, effectively ensuring directional reflection. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the device of this utility model;

[0021] Figure 2 This is a bottom view of the device of this utility model;

[0022] Figure 3 This is a top view of the device of this utility model;

[0023] Figure 4 This is a structural diagram of the reflector of this utility model;

[0024] Figure 5 This is a design drawing of the reflector surface of the present invention;

[0025] Figure 6 This is a diagram showing the external structure of the infrared light source of this utility model.

[0026] In the diagram: 1. Housing; 11. Opening; 2. Reflector; 21. Threaded hole; 3. Infrared light source; 31. Infrared power supply indicator; 32. Infrared low-range control key; 33. Infrared high-range control key; 34. Ceramic thread; 4. Halogen tungsten lamp; 41. Shortwave power supply indicator; 42. Shortwave low-range control key; 43. Shortwave high-range control key; 5. LED floodlight; 51. Visible light power supply indicator; 52. Visible light control key; 6. Power supply interface; 61. 220V power indicator. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example

[0029] like Figures 1-6 As shown, an infrared heat source covering the visible and infrared bands primarily achieves full-band (0.37μm~14μm) radiation output in both visible and infrared wavelengths. It includes a housing 1 and a detachable reflector 2, an infrared light source 3, a halogen tungsten lamp 4, and an LED floodlight 5, all mounted on the housing 1. The housing 1 is made of 5052 aluminum sheet. One end of the housing 1 has an opening 11. The top and bottom surfaces are perforated for weight reduction. A protective net is fixedly installed at the opening 11 to prevent personnel from touching the high-temperature internal area. The protective net is made of 304 stainless steel with a mesh size of 40mm×40mm, effectively preventing burns from accidental contact with the infrared light source 3 and minimizing the impact on infrared radiation intensity. Reinforcing ribs are added to the mounting locations of the reflector 2, halogen tungsten lamp 4, and LED floodlight 5 to ensure the overall structural strength. Considering the possibility of rain or dust ingress, a drain and dust outlet are provided at the bottom. The power supply is located at the rear of the radiation source and is sealed for rain protection. To ensure effective heat dissipation of the power supply section, the power supply has a heatsink structure at the rear.

[0030] Reflector 2, embedded in opening 11 and secured with screws, is used to converge and reflect mid- and long-wave infrared radiation. High-temperature components such as reflector 2 and infrared light source 3 are designed as a single unit, requiring heat insulation at connections with other structures. The main heat-generating area behind reflector 2 is the primary heat dissipation area. Heat dissipation holes are located at the bottom and top of housing 1, with inclined walls to allow gas flow within the cavity, reducing temperature and improving heat dissipation. Reflector 2 is a 15mm stretched parabolic structure, with opening 11 measuring 163.7mm and a height of 60mm. The structural design optimizes light utilization and convergence angle within the constraints of volume and weight. Each infrared light source 3 has a reflection angle of 183.4°, effectively ensuring directional reflection. The bottom of reflector 2 is 12mm from the light source, and its operating temperature is around 180℃. In the infrared band, aluminum, gold, copper, and silver have much higher reflectivity than other metals, and their reflectivity is relatively stable at different temperatures. Aluminum reflector 2 is simple to manufacture, has good thermal stability, and is inexpensive. Choosing pure aluminum ensures good reflectivity while maintaining structural stability. The design guarantees that the radiation stability of the infrared source does not exceed 5%. A detailed structural diagram is shown below. Figure 4 , Figure 5 As shown.

[0031] The infrared light source 3 adopts a cylindrical lamp tube structure for its light-emitting surface. The axis of the lamp tube coincides with the focal point of the reflector 2, making it easier to focus the light emitted by the lamp tube. The infrared light source 3 is composed of a heating wire and a core rod. The heating wire is made of molybdenum wire with a heat resistance of 2600℃, which is wound around the core rod of the heating rod. The core rod is made of silicon nitride material with a higher heat resistance and a thermal stability temperature of 1800℃. The infrared light source 3 is composed of high-temperature ceramic with an alumina content of 86%, a silicon nitride content of 4%, and a silicon carbide content of 10%, and its thermal stability temperature is 1300℃. A heating wire is wound 10mm away from the fixed end face to reduce the temperature at both ends of the infrared light source 35. The infrared light source 35 is fixed with a standard M16 ceramic thread 34 for quick replacement and installation. One side of the reflector 2 is provided with a threaded hole 21 that is adapted to the ceramic thread 34 for the installation of the infrared light source 3.

[0032] Infrared light source 3 generates mid- and long-wave infrared radiation output in the 3μm–14μm band, achieved through thermal radiation generated by a ceramic heating rod, which is then focused by a stretched parabolic reflector 2 for directional projection. The infrared light source 3 is made of a silicon nitride and alumina composite ceramic tube. This composite ceramic is composed of alumina, silicon nitride, and silicon carbide, offering advantages over ordinary ceramics such as high temperature resistance, low thermal conductivity, thermal shock resistance, and high mechanical strength. Compared to single-component silicon carbide special ceramics, this material, composed of multiple components, exhibits a uniform and higher emissivity across all wavelengths. The ceramic has a maximum operating temperature of 1300℃ and a service life exceeding 5000 hours at a selected operating temperature of 627℃ (900K). This light source can also operate stably even in rain conditions. The infrared light source 35 processed using this material has the following advantages: the light source has a stable emissivity in the infrared band (ε≈0.8); the light source is resistant to thermal shock and has high thermal stability, and can work normally under conditions such as rain and water mist when operating at high temperatures; the light source material has low thermal conductivity, the installation position of the cold end of the light source has a low temperature, and the installation is convenient; the material performance is stable, and the light source has a long service life. The side wall of the housing 1 is equipped with an infrared power supply indicator 31 that displays the working status of the infrared light source 3, and an infrared low-level control key 32 and an infrared high-level control key 33 to control the infrared light source 3. The design of the radiation power of the infrared light source 3 mainly considers the temperature control of the radiating surface and the shape of the radiating surface. A two-level design is adopted. When the infrared low-level key is activated, only one infrared light source 3 works; when the infrared high-level control key 33 is activated, both infrared light sources 3 work simultaneously.

[0033] The power supply for the infrared light source 3 is a precision resistor-modulated voltage regulator, and the voltage of the power supply is modulated by the precision resistor to adjust the output voltage. The working area of ​​the infrared light source 3 forms a semi-enclosed working cavity through the reflector 2, which reduces the disturbance caused by air flow and ensures the consistency of the working temperature.

[0034] Halogen tungsten lamps 4 and LED floodlights 5 are embedded on both sides of opening 11. LED floodlight 5 generates visible light in the 0.4μm–0.8μm wavelength range, using a single LED bulb for visible light output, which is then focused and projected remotely via a standard lens assembly. A P120 type LED floodlight 5 bulb assembly is fixed to the right side of infrared light source 3. This bulb consists of a highly integrated bulb, an optical lens assembly, and a 12V power supply system. The LED floodlight 5 has a luminous flux ≥1000lm, a power of 15W, and an effective illumination distance of 1.5km. The LED floodlight 5 uses a special high-temperature resistant LED bulb, capable of continuous operation at 85℃. The LED floodlight 5 is installed on the right side of infrared heat source reflector 22 and enclosed within housing 1, allowing for lower operating temperature control. The side wall of housing 1 features a visible light power indicator 51 to display the LED floodlight 5's operating status and a visible light control button 52 to control the LED floodlight 5.

[0035] Two halogen tungsten lamps 4 are provided, generating short-wave infrared radiation output in the 0.8μm–3μm band. This is achieved using the infrared radiation generated by the halogen tungsten lamps 4, serving as a near-infrared enhancement light source. They are fixed to the left of the infrared light source 3 and are primarily used to supplement the near-infrared band light source; selection is possible as needed. Two warm-color-temperature miniature halogen tungsten lamps 4 serve as the near-infrared band enhancement light source, with a miniature light-emitting cup acting as a directional projection cover. The two halogen tungsten lamps 4 have powers of 15W and 20W respectively, both with a color temperature of 2400K. A quartz aluminum-coated reflective film is used as the light-emitting cup, which can generate strong radiation within a beam angle range of 10°. The peak radiation λm = 1.2 μm. At 20W power, the radiation intensity produced by the center of the light source in the 0.8μm to 3μm band is 36W / Sr and 66W / Sr, respectively, with the 0.8μm to 1.7μm band accounting for more than 75%. The side wall of the housing 1 is provided with a shortwave power supply indicator 41 to display the working status of the halogen lamp 4, a shortwave low-range control button 42 to control the 15W halogen lamp 4, and a shortwave high-range control button 43 to control the 20W halogen lamp 4. The shortwave power supply indicator 41 and the visible light power supply indicator 51 share the same power supply.

[0036] A 220V AC power supply interface 6 is embedded in the bottom of the housing 1. A 220V power indicator light 61 is located on the side wall of the housing 1 to show whether the power is on. The infrared light source 3, halogen lamp 4, and LED floodlight 5 are all electrically connected to the power supply interface 6. The infrared light source 3 body 1 is powered by DC 160V, while the shortwave light source and LED floodlight 5 are powered by DC 12V. The maximum power consumption is 450W. The power supply interface 6 uses a rugged aviation connector and has a through-hole design for connecting to the tripod interface supporting the infrared light source 3.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An infrared heat source covering the visible and infrared bands, comprising a housing (1) and a reflector (2) detachably mounted on the housing (1), an infrared light source (3), a halogen tungsten lamp (4), and an LED floodlight (5), characterized in that, The housing (1) has an opening (11) at one end. The reflector (2) is embedded in the opening (11). The infrared light source (3) is detachably installed in the reflector (2). The halogen lamp (4) and the LED floodlight (5) are embedded on both sides of the opening (11). The bottom of the housing (1) is provided with a 220V AC power supply interface (6). The side wall of the housing (1) is provided with a 220V power indicator light (61) to show whether the power is on. The infrared light source (3), the halogen lamp (4) and the LED floodlight (5) are all electrically connected to the power supply interface (6).

2. An infrared heat source covering the visible and infrared waveband according to claim 1, characterized in that, The top and bottom surfaces of the shell (1) are both designed with a hollow structure.

3. The infrared heat source covering the visible and infrared bands according to claim 1, characterized in that, The reflector (2) is composed of two symmetrically arranged stretched parabolic structures with two reflection focal points. Each reflection focal point is provided with an infrared light source (3), and the reflection angle of the two infrared light sources (3) is 183.4°.

4. An infrared heat source covering the visible and infrared waveband according to claim 3, characterized in that, The side wall of the housing (1) is provided with an infrared power supply indicator (31) that displays the working status of the infrared light source (3), and an infrared low-level control key (32) and an infrared high-level control key (33) for controlling the infrared light source (3). When the infrared low-level control key (32) is activated, only one infrared light source (3) works; when the infrared high-level control key (33) is activated, both infrared light sources (3) work simultaneously.

5. The infrared heat source covering the visible and infrared bands according to claim 1, characterized in that, The LED floodlight (5) consists of highly integrated LED beads, an optical lens group and a 12V power supply system. The side wall of the housing (1) is provided with a visible light power supply indicator (51) to display the working status of the LED floodlight (5) and a visible light control key (52) to control the LED floodlight (5).

6. The infrared heat source covering the visible and infrared bands according to claim 1, characterized in that, Two halogen lamps (4) are provided, including 15W and 20W power, each consisting of a miniature halogen lamp (4) and a miniature light cup. The miniature light cup is a quartz aluminum-coated reflective film. The side wall of the housing (1) is provided with a shortwave power supply indicator (41) to display the working status of the halogen lamp (4), a shortwave low-range control key (42) to control the 15W halogen lamp (4), and a shortwave high-range control key (43) to control the 20W halogen lamp (4).

7. The infrared heat source covering the visible and infrared bands according to claim 1, characterized in that, The infrared light source (3) is composed of a core rod and a heating wire wound around the core rod. The heating wire is made of molybdenum wire and the core rod is made of silicon nitride. The outer part of the infrared light source (3) is made of high-temperature ceramic.

8. An infrared heat source covering the visible and infrared waveband according to claim 7, characterized in that, One end of the infrared light source (3) is provided with a ceramic thread (34), and one side of the reflector (2) is provided with a threaded hole (21) adapted to the ceramic thread (34).

9. The source of claim 1, wherein the source covers the visible and infrared bands. A protective net is fixedly provided at the opening (11), and the mesh size of the protective net is 40mm×40mm.

10. The infrared heat source covering the visible and infrared waveband according to claim 1, characterized in that, The power supply interface (6) uses a tri-proof aviation plug.

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