Electric heating device based on infrared radiation

Abstract

The utility model discloses an electric heating device based on infrared radiation, which comprises a shell, a heating tube, a first light energy reflecting plate, a second light energy reflecting plate and a heat insulation layer are arranged in the shell, and a cavity is formed between the shell and the heat insulation layer. According to the utility model, the long-strip-shaped metal shell adopts an integral casting process, so that the heater has a firmer and more durable shell, and a heating element with higher power can be mounted. Preferably, the metal shell is made of aluminum alloy, the light energy reflecting plate is composed of two sets of symmetrical arc-shaped faces, and the light energy reflecting plate is made of a mirror surface stainless steel plate or a mirror surface aluminum plate. A layer of temperature-resistant heat-insulating material is covered on the shady face of the reflecting plate, the heat-insulating material is basalt fiber or glass fiber or asbestos fiber board or porous vacuum silicon cloth, and meanwhile, the heater is characterized in that human body recognition sensor modules are arranged in the upper cover plates of the cavities at the two ends of the heater.

Description

TECHNICAL FIELD

[0001] The utility model relates to infrared radiation electric heating device technical field, especially in a kind of based on infrared radiation electric heating device. BACKGROUND

[0002] The existing suspension type long strip infrared heating device, it is a planar or circular arc reflecting plate with thickness of about 0.4-1mm between heating element and shell, for improving heat energy utilization rate. The reflecting plate installed in this way can reflect more than 90% of infrared rays, but the light and heat energy radiated outward by high-temperature quartz glass tube is transmitted to the external metal shell by air convection and conduction, so that the temperature of the metal shell reaches more than 200℃, causing unnecessary loss of heat.

[0003] In addition, the heater designed in this way has a spotlight effect on the human body located directly below, causing the head to be heated concentrated, resulting in discomfort, and the effective heat utilization rate is low for multi-person social occasions. INVENTION CONTENTS

[0004] The utility model aims at providing a kind of based on infrared radiation electric heating device, its long strip metal shell adopts integral casting process, so that the heater has more solid and durable shell, can install the heating element of higher power. The preferred material of metal shell is aluminum alloy, the light energy reflecting plate is formed by two groups of symmetrical arc surfaces, and the material is mirror stainless steel plate or mirror aluminum plate. A layer of temperature-resistant heat insulation material is covered on the back light surface of reflecting plate, and the heat insulation material is basalt fiber or glass fiber or asbestos fiber plate or porous vacuum silicon cloth. At the same time, the special feature of the heater of the utility model is that a human body recognition sensor module is installed in the upper cover plate of the cavity at both ends of the heater.

[0005] In order to achieve the above purpose, the main technical scheme adopted by the utility model includes:

[0006] A kind of based on infrared radiation electric heating device, comprising:

[0007] Shell, the inside of the shell is provided with heating tube, first light energy reflecting plate, second light energy reflecting plate and heat insulation layer, and the cavity is formed between the shell and heat insulation layer.

[0008] The above-mentioned electric heating device based on infrared radiation, wherein the heating tube is fixed by tube clamp, and the bottom of the tube clamp is fixedly connected with pad, and the pad is fixedly installed in the inside of the shell by screw.

[0009] The above-mentioned electric heating device based on infrared radiation, wherein the top of the shell is provided with protective net.

[0010] The infrared radiation-based electric heating device, wherein the inside of the shell is further provided with two symmetrical support seats, and a cabin partition plate is arranged on the support seats to divide the inside space of the shell.

[0011] The infrared radiation-based electric heating device, wherein a detachable partition plate is further arranged on the cabin partition plate.

[0012] The infrared radiation-based electric heating device, wherein a semicircular hole is arranged on the detachable partition plate.

[0013] The infrared radiation-based electric heating device, wherein a groove is arranged on one side of the bottom of the detachable partition plate.

[0014] The infrared radiation-based electric heating device, wherein a hole is further arranged on the detachable partition plate.

[0015] The infrared radiation-based electric heating device, wherein screw holes for mounting the shell are further arranged on the shell.

[0016] The utility model at least has following beneficial effects:

[0017] In the utility model, realize a kind of electric heating device based on infrared radiation, and the metal shell of long strip shape adopts integral casting process, so that the heater has more solid and durable shell, and the higher power heating element of installation power can be installed.Metal shell preferred material is aluminum alloy, and the light energy reflection plate shape is formed by two groups of symmetrical arc surfaces, and the material is mirror stainless steel plate or mirror aluminum plate.A layer of temperature-resistant heat insulation material is covered on the back light surface of the reflection plate, and the heat insulation material is basalt fiber or glass fiber or asbestos fiber plate or porous vacuum silicon cloth, and simultaneously, the special place of the heater of the utility model is also installed in the upper cover plate of the cavity of both ends of the heater human recognition sensor module. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present application, and form part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.In the drawings:

[0019] Figure 1 It is the structure schematic view of the top view of the electric heating device based on infrared radiation of the utility model;

[0020] Figure 2 It is the structure schematic view of the front view of the electric heating device based on infrared radiation of the utility model;

[0021] Figure 3 It is the structure schematic view of the side view of the electric heating device based on infrared radiation of the utility model;

[0022] Figure 4 For the utility model Figure 1 The cross section structure schematic view of C-C;

[0023] Figure 5 For the utility model Figure 1 The cross section structure schematic view of C-C;

[0024] Figure 6 For the utility use three-dimensional structure schematic view of the electric heating device based on infrared radiation of the utility model;

[0025] Figure 7 For the utility use the diagram and technical principle schematic view of light energy reflecting plate in the electric heating device based on infrared radiation of the utility model;

[0026] Figure 8 For the utility use light reflection schematic view of the electric heating device based on infrared radiation of the utility model;

[0027] Figure 9 For the utility use the structure schematic view of end cover plate in the electric heating device based on infrared radiation of the utility model.

[0028] Explanation of the attached drawing number:

[0029] 1, shell, 2, heating tube, 3, first light energy reflecting plate, 4, second light energy reflecting plate, 5, heat insulation layer, 9, protective net, 101, cavity, 10, support seat, 11, cabin partition, 12, separate partition, 14, semicircular hole, 15, recess, 16, hole, 17, cushion block, 18, pipe clamp, 19, screw hole, 20, screw, 21, millimeter wave sensor module, 22, relay output contact, 23, end cover plate, 24, fixing hole. Specific implementation

[0030] The following will cooperate with the drawings and examples to explain the implementation of the application in detail, by which the realization process of how to apply technical means to solve technical problems and achieve technical effects of the application can be fully understood and implemented.

[0031] Please refer to Figures 1 to 9 The embodiment of the utility model provides a kind of electric heating device based on infrared radiation, including: shell 1, the inside of shell 1 is provided with heating tube 2, first light energy reflecting plate 3, second light energy reflecting plate 4 and heat insulation layer 5, cavity 101 is formed between shell 1 and heat insulation layer 5;

[0032] Wherein, light energy reflecting plate shape is two groups of symmetrical arc surfaces, and its material is mirror stainless steel plate or mirror aluminum plate, and its thickness is 0.4-1.2mm. Cover a layer of temperature-resistant heat insulation material on the back light surface of reflecting plate, such as Figures 4-5The heat insulation material is basalt fiber or glass fiber or rock wool fiber plate or porous vacuum silicon cloth, and the thickness is 3-10 mm.

[0033] By adopting the above technical scheme, the long strip-shaped metal shell is integrally cast, so that the heater has a more solid and durable shell, and a higher power heating element can be installed. The metal shell is preferably made of aluminum alloy, the light energy reflecting plate is formed by two groups of symmetrical arc-shaped surfaces, and the material is mirror surface stainless steel plate or mirror surface aluminum plate. A layer of temperature-resistant heat insulation material is covered on the back surface of the reflecting plate, the heat insulation material is basalt fiber or glass fiber or rock wool fiber plate or porous vacuum silicon cloth, and the heater is special in that a human body recognition sensor module is installed in the upper cover plate of the cavity 101 at both ends of the heater.

[0034] Please refer to Figures 1 to 9 The heating pipe 2 is fixed by the pipe clamp 18, the bottom of the pipe clamp 18 is fixedly connected with the cushion block 17, and the cushion block 17 is fixedly installed in the inside of the shell 1 by the screw 20.

[0035] The cushion block 17 is made of ceramic material and has high heat resistance and heat insulation effect.

[0036] Please refer to Figures 1 to 9 The top of the shell 1 is provided with the protective net 9, and the inside of the shell 1 is also provided with two symmetrical support seats 10, the support seat 10 is provided with the cabin partition plate 11 for separating the inside space of the shell 1, the cabin partition plate 11 is also provided with the separated partition plate 12, the separated partition plate 12 is provided with the semicircular hole 14, one side of the bottom of the separated partition plate 12 is provided with the groove 15, and the separated partition plate 12 is also provided with the hole channel 16.

[0037] The groove 15 is used for penetrating the cable.

[0038] As shown above Figure 7 O1 is a light source. The curved surface M-P-N forms a semicircular reflecting surface.

[0039] Suppose that the position of the light source O1 is fixed relative to the reflecting surface, for the reflecting surface, the greater the curvature radius, the greater the radiation area of the light, and the intensity of the light received by the heated object will be weaker.

[0040] Assuming the reflecting surface is a semicircle, the radiation angle of the light emitted by the light source O1 is the angle between the ray O1M and the ray O1N. In particular, according to the reflection law, it is plotted that the light rays reflected by the light source O1 via the reflecting surface M-P-N are shown as the magenta lines in the above figure. This part of light rays is relatively concentrated in the direct below of the light source, thereby forming a higher energy density in the direct below of the light source. For some specific application occasions, such as metal surface paint baking treatment, this arrangement of the light source and the reflecting surface is suitable.

[0041] For the need of human body heating, we hope that the light source has a larger radiation range and a more concentrated energy. The existing same type of heater can be realized by the following methods: 1 adjusting the reflecting surface to be a circular arc; 2 placing the light source away from the reflecting surface; however, these two methods will lose and gain.

[0042] The speciality of the light energy reflecting plate of the utility model lies in changing the shape of the conventional arc-shaped reflecting surface with only one center, so that the distribution of the reflected light is more in line with the needs of human body for energy distribution.

[0043] The special reflecting surface of the utility model refers to a reflecting structure composed of several special continuous arc surfaces. Figure 7 As shown in the above figure, the P point is pulled down by a certain distance to the Q point, thereby forming a complete reflecting surface composed of M-F-Q-F'-N. Among them, the centers of M-F and N-F' are O2, the center of F-Q is O3, and the center of F'-Q is symmetric about the straight line PQ with respect to O3.

[0044] According to the law of light reflection, it is found through local drawing that after the light source O1 passes through the reflecting surface M-F-Q, the light distribution is concentrated in a reasonable set area, such as the yellow line part shown in the above Figure 7 and the following Figure 8 .

[0045] Through simulation of the actual application scene, such as Figure 8 , it is found through comparison that obviously the distribution of the yellow light is more reasonable than that of the magenta light.

[0046] Please refer to Figures 1 to 9 , the shell 1 is also provided with a screw hole 19 for mounting an end cover plate 23, the end cover plate 23 is provided with a millimeter wave sensor module 21, a relay output contact 22 and a fixing hole 24;

[0047] Among them, the speciality of the utility model also lies in that a detachable partition plate is designed in the middle of the two end cabin partition plates 11 of the heater, such as Figure 5The separated partition plate 12 enables the heater to install different types of infrared heating elements, such as carbon fiber heating tube or halogen heating tube or quartz heating tube, according to different application scenarios. This design also makes it more convenient to replace different specifications of heating lamp tubes. A semicircular hole 14 is designed on the upper edge of the separated partition plate 12 for placing and fixing the protective net 9.

[0048] The heater of the present application is special in that a human body recognition sensor module is installed in the upper cover plate of the cavity 101 at both ends of the heater. Figure 9 As shown in the figure. The end cover plate 23 is connected with the heater shell 1 through the fixing hole 24. The sensor module can be powered by 12-24VDC or 110-220AC. The relay output or transistor output.

[0049] The sensor adopts a 24GHz millimeter wave radar sensing chip. The working principle of this sensor is to use FMCV frequency modulation continuous wave to detect the human body target in the set space, combine radar signal processing, and accurate human body sensing algorithm to realize high sensitivity human body existence state sensing, can identify the human body in motion and static state, and can calculate the distance of the target and other auxiliary information. The maximum sensing distance can reach 6 meters, the resolution is 0.75 meters, the detection angle is ±60°, and the working environment temperature is-40℃-+80℃.

[0050] The working principle of the sensor module is that when a human body enters the detection range of the sensor, the relay output contact 22 is attracted after a certain time delay, which can be selected as 5s, 10s, 30s or 60s, and the heating lamp is powered on. When the human body leaves, the power is automatically cut off after a certain time delay, and the heater does not work. Thus, the effective use of electric energy is ensured.

[0051] Summary:

[0052] The infrared radiation electric heating device of the present application is novel in design, solid and durable, high in heat utilization efficiency, more scientific for human body warming, convenient for lamp tube replacement, and the switch can realize intelligentization.

[0053] The heater of the present application can be used for high and large space heating, human body warming, animal warming, greenhouse and other application scenarios.

[0054] The working principle of the utility model is: its long strip metal shell adopts integral casting process, so that the heater has more solid and durable shell, can install higher power heating element. The preferred material of metal shell is aluminum alloy, the shape of the light energy reflection plate is two groups of symmetrical arc surfaces, and the material is mirror stainless steel plate or mirror aluminum plate. A layer of temperature-resistant heat insulation material is covered on the back light surface of the reflection plate, the heat insulation material is basalt fiber or glass fiber or asbestos fiber plate or porous vacuum silicon cloth. Meanwhile, the special part of the utility model is that a human body recognition sensor module is installed in the upper cover plate of the cavity 101 at both ends of the heater.

[0055] The above description shows and describes several preferred embodiments of the utility model, but as described above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above teaching or related technology or knowledge within the scope of the utility model concept described herein. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.

Claims

1. An electric heating device based on infrared radiation comprising a housing (1), characterized in that, The inside of the shell (1) is provided with a heating tube (2), a first light energy reflection plate (3), a second light energy reflection plate (4) and a heat insulation layer (5), and a cavity (101) is formed between the shell (1) and the heat insulation layer (5).

2. An electrically heated device based on infrared radiation according to claim 1, characterized in that: The heating tube (2) is fixedly installed through a tube clamp (18), the bottom of the tube clamp (18) is fixedly connected with a cushion block (17), and the cushion block (17) is fixedly installed in the inside of the shell (1) through a screw (20).

3. An electrically heated device based on infrared radiation according to claim 2, characterized in that: The top of the shell (1) is provided with a protective net (9).

4. An electrically heated device based on infrared radiation according to claim 3, characterized in that: The inside of the shell (1) is also provided with two support seats (10) symmetrically arranged, and the support seat (10) is provided with a cabin partition plate (11) for dividing the inside space of the shell (1).

5. An electrically heated device based on infrared radiation according to claim 4, characterized in that: The cabin partition plate (11) is also provided with a detachable partition plate (12).

6. An electrically heated device based on infrared radiation according to claim 5, characterized in that: The detachable partition plate (12) is provided with a semicircular hole (14).

7. An electrically heated device based on infrared radiation according to claim 6, characterized in that: One side of the bottom of the detachable partition plate (12) is provided with a groove (15).

8. An electrically heated device based on infrared radiation according to claim 7, characterized in that: The detachable partition plate (12) is also provided with a hole channel (16).

9. An electrically heated device based on infrared radiation according to claim 8, characterized in that: The shell (1) is also provided with a screw hole (19) for installing an end cover plate (23), and the end cover plate (23) is provided with a millimeter wave sensor module (21), a relay output contact (22) and a fixing hole (24).

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