Anti-explosion thermal infrared imager

Abstract

The utility model relates to an explosion-proof infrared thermal imager, which comprises an explosion-proof outer shell which comprises an explosion-proof middle shell, an explosion-proof front cover arranged at the front end of the explosion-proof middle shell and an explosion-proof rear cover arranged at the rear end of the explosion-proof middle shell, a lens cover is arranged on the explosion-proof front cover, and the explosion-proof rear cover is in contact with the explosion-proof middle shell; the machine core support is arranged in the anti-explosion middle shell, one end of the machine core support is fixedly connected with the anti-explosion rear cover, and the other end of the machine core support extends to the lens cover and forms a gap with the lens cover; the infrared movement is installed on the movement support and right faces the lens cover, and the bottom face and / or the side face of the infrared movement are / is attached to the movement support; the machine core support, the anti-explosion rear cover and the anti-explosion middle shell are all made of heat conduction materials. According to the scheme, heat in the explosion-proof shell can be transmitted to the outside of the explosion-proof shell through the machine core support, the explosion-proof rear cover and the explosion-proof middle shell, heat accumulation in the shell is avoided, the influence of the internal high-temperature environment on infrared machine core monitoring imaging is obviously reduced, and the imaging monitoring efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of infrared thermal imagers, and in particular to an explosion-proof infrared thermal imager. Background Art

[0002] Infrared thermal imagers are widely used in equipment maintenance, fire prevention, night vision, and security in the industrial field. They detect infrared heat non-contact and convert it into thermal images and temperature values, which are then displayed on a monitor and the temperature values are calculated to accurately identify and analyze heating fault areas.

[0003] Existing explosion-proof thermal imagers have sealed and explosion-proof casings to ensure explosion-proof safety, resulting in poor heat dissipation of the thermal imager. When in use, the heat generated by the infrared camera cannot be dissipated from the casing well, causing the temperature inside the casing to accumulate too high, affecting the temperature measurement accuracy of the infrared thermal image, and even worse, causing damage to the thermal imager. Utility Model Content

[0004] Based on this, the utility model provides an explosion-proof infrared thermal imager to solve the problem that the existing thermal imager has poor heat dissipation, resulting in excessive temperature accumulation inside the shell, affecting the temperature measurement accuracy of the infrared thermal image, and even worse causing damage to the thermal imager.

[0005] The utility model provides an explosion-proof infrared thermal imager, comprising:

[0006] An explosion-proof housing, comprising an explosion-proof middle shell, an explosion-proof front cover at the front end of the explosion-proof middle shell, and an explosion-proof rear cover arranged at the rear end of the explosion-proof middle shell, wherein the explosion-proof front cover is provided with a lens cover, and the explosion-proof rear cover is in contact with the explosion-proof middle shell;

[0007] A movement bracket is disposed in the explosion-proof middle shell, one end of which is fixedly connected to the explosion-proof back cover, and the other end of which extends to the lens cover and has a gap between the lens cover;

[0008] An infrared camera core is mounted on the camera core bracket and faces the lens cover, with the bottom and / or side surfaces of the infrared camera core being in contact with the camera core bracket;

[0009] Wherein, the movement bracket, the explosion-proof back cover and the explosion-proof middle shell are all made of heat-conducting materials.

[0010] In one embodiment, the movement support includes a bottom plate that fits with the bottom surface of the infrared movement and side plates that fit with the two side surfaces of the infrared movement;

[0011] The bottom surface of the infrared core is fitted with the bottom plate, and the two side surfaces of the infrared core are fitted with the two side plates respectively.

[0012] In one embodiment, a heat-conducting medium is filled between the bottom surface of the infrared core and the bottom plate; and / or

[0013] The two side surfaces of the infrared core and the space between the two side plates are filled with a heat-conducting medium.

[0014] In one embodiment, the heat-conducting medium is a heat-conducting gel, a heat-conducting grease, a heat-conducting silicone pad or a heat-conducting plastic pad.

[0015] In one embodiment, the core bracket is made of metal heat-conducting material.

[0016] In one embodiment, the movement bracket is made of copper, aluminum, or copper-aluminum alloy.

[0017] In one embodiment, the explosion-proof middle shell includes a middle shell outer layer and a middle shell inner layer, the middle shell outer layer and the middle shell inner layer are both cylindrical, and the middle shell outer layer and the middle shell inner layer are coaxially arranged, and the diameter of the middle shell outer layer is larger than the diameter of the middle shell inner layer, so that a heat dissipation cavity is formed between the middle shell outer layer and the middle shell inner layer;

[0018] The front end and / or the rear end of the explosion-proof housing are provided with heat dissipation holes communicated with the heat dissipation cavity.

[0019] In one embodiment, the explosion-proof front cover is provided with a plurality of heat dissipation holes connected with the heat dissipation cavity.

[0020] In one embodiment, a mounting bracket is provided at the bottom of the explosion-proof middle shell.

[0021] In one embodiment, the explosion-proof housing is provided with a sunshade covering the upper half of the explosion-proof housing.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] This explosion-proof infrared thermal imager connects the infrared core with a core bracket, an explosion-proof back cover and an explosion-proof middle shell made of heat-conducting materials in sequence, so that the heat on the infrared core and inside the explosion-proof shell can be transferred to the outside of the explosion-proof shell through the core bracket, the explosion-proof back cover and the explosion-proof middle shell at a speed much higher than the heat transfer of air. The heat dissipation efficiency is high and the effect is good, which avoids heat accumulation inside the shell, solves the problem of inaccurate temperature measurement caused by uneven internal temperature, significantly reduces the impact of the internal high-temperature environment on the monitoring imaging of the infrared core, and improves the efficiency of imaging monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 2 is a schematic structural diagram of an explosion-proof infrared thermal imager in one embodiment;

[0025] Figure 2 A schematic structural diagram of an explosion-proof infrared thermal imager from another angle in one embodiment;

[0026] Figure 3 is a cross-sectional view of an explosion-proof infrared thermal imager in one embodiment;

[0027] Figure 4 An exploded view of an explosion-proof infrared thermal imager in one embodiment;

[0028] Figure 5 The figure is a schematic structural diagram of a core bracket of an explosion-proof infrared thermal imager in one embodiment.

[0029] The figure marks in the drawings of the specification include: explosion-proof outer shell 1, explosion-proof middle shell 101, middle shell outer layer 1011, middle shell inner layer 1012, heat dissipation cavity 1013, explosion-proof front cover 102, explosion-proof rear cover 103, lens cover 2, movement bracket 3, bottom plate 301, side plate 302, connecting plate 303, infrared movement 4, heat dissipation hole 5, mounting bracket 6, sunshade 7. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0031] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention.

[0032] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not intended to limit the conditions under which the present invention can be implemented. Any structural modifications, changes in proportions, or adjustments in sizes should still fall within the scope of the technical contents disclosed in this utility model without affecting the effects and purposes that can be achieved by the present utility model.

[0033] Terms such as "upper," "lower," "left," "right," "center," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification to indicate positions or locations are based on those shown in the accompanying drawings and are intended solely for ease of description. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Existing explosion-proof thermal imagers have sealed and explosion-proof casings to ensure explosion-proof safety, resulting in poor heat dissipation of the thermal imager. When in use, the heat generated by the infrared core cannot be dissipated from the casing well, causing the temperature inside the casing to accumulate too high, affecting the temperature measurement accuracy of the infrared thermal image, and even worse, causing damage to the thermal imager.

[0035] In view of this, an embodiment of the present invention provides an explosion-proof infrared thermal imager, which includes:

[0036] The explosion-proof housing 1 includes an explosion-proof middle shell 101, an explosion-proof front cover 102 disposed at the front end of the explosion-proof middle shell 101, and an explosion-proof rear cover 103 disposed at the rear end of the explosion-proof middle shell 101. The explosion-proof front cover 102 is provided with a lens cover 2, and the explosion-proof rear cover 103 is in contact with the explosion-proof middle shell 101.

[0037] The movement bracket 3 is arranged in the explosion-proof middle shell 101, one end of which is fixedly connected to the explosion-proof back cover 103, and the other end extends to the lens cover 2 with a gap between the lens cover 2;

[0038] The infrared core 4 is mounted on the core bracket 3 and faces the lens cover 2, and the bottom and / or side of the infrared core 4 is in contact with the core bracket 3;

[0039] The movement support 3 , the explosion-proof back cover 103 and the explosion-proof middle shell 101 are all made of heat-conducting materials.

[0040] The explosion-proof infrared thermal imager according to the embodiment of the present invention works as follows:

[0041] By fitting the bottom and / or side surfaces of the infrared movement 4 to the movement bracket 3, the infrared movement 4 and the movement bracket 3 are in surface contact, and the heat generated by the infrared movement 4 can be quickly conducted to the movement bracket 3, thereby achieving rapid heat dissipation of the infrared movement and avoiding heat concentration on the infrared movement 4.

[0042] By connecting and fixing the movement bracket 3 to the explosion-proof back cover 103, the heat of the infrared movement 4 and the ambient heat inside the explosion-proof housing 1 can be transferred to the explosion-proof back cover 103 through the movement bracket 3, and the explosion-proof back cover 103 exchanges heat with the external environment, thereby achieving rapid dissipation of heat inside the explosion-proof housing 1, avoiding heat accumulation inside the explosion-proof housing 1, and significantly reducing the impact of the internal high-temperature environment on the monitoring and imaging of the infrared movement 4, thereby improving the efficiency of imaging monitoring.

[0043] By connecting the explosion-proof middle shell 101 with the explosion-proof rear cover 103, the heat of the explosion-proof rear cover 103 can also be transferred to the explosion-proof middle shell 101. The explosion-proof rear cover 103 and the explosion-proof middle shell 101 jointly exchange heat with the external environment, thereby increasing the heat exchange area between the thermal imager housing and the external environment, improving the heat dissipation efficiency and heat dissipation uniformity. The perfect combination of the explosion-proof housing 1 as a whole and the infrared core 4 significantly improves the heat dissipation and conduction between the two, and solves the problem of inaccurate temperature measurement caused by uneven internal temperature.

[0044] The thermal imager provided by the embodiment of the present invention sequentially connects the infrared core 4 with the core bracket 3, the explosion-proof back cover 103 and the explosion-proof middle shell 101 made of heat-conducting material, so that the heat on the infrared core 4 and inside the explosion-proof shell 1 can be transferred to the outside of the explosion-proof shell 1 through the core bracket 3, the explosion-proof back cover 103 and the explosion-proof middle shell 101 at a speed much higher than the heat transfer rate of air, thereby achieving high heat dissipation efficiency and good effect, and avoiding heat accumulation inside the shell.

[0045] The infrared thermal imager provided by the embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0046] according to Figure 4 An explosion-proof infrared thermal imager according to at least one embodiment of the present invention is exemplarily shown. The explosion-proof infrared thermal imager includes an infrared core 4 , a core bracket 3 and an explosion-proof housing 1 .

[0047] The infrared core 4 is used to convert the detected infrared radiation of the target area or object into a temperature distribution image, video, or data, and transmit it to an external terminal, thereby enabling temperature monitoring of the target area or object. For example, during the liquor brewing process, it can be used as a fire monitoring device to monitor the temperature of electrical equipment in the brewing workshop. It can also be used as a temperature measuring instrument to monitor the temperature of lees, alcohol vapor, fermented koji, and other materials involved in the brewing process, thereby providing real-time feedback on the temperature of each stage of the brewing process to ensure the quality of the wine.

[0048] Specifically, in this embodiment, the infrared core 4 can be an existing conventional infrared imaging core, which belongs to mature conventional technology, and its structure and application are not described in detail here.

[0049] In this embodiment, the explosion-proof housing 1 is used to provide protection for the infrared core 4. The explosion-proof housing 1 can enable the infrared core 4 to work stably in harsh environments such as flammable and explosive environments, thereby achieving the purpose of real-time monitoring of the temperature of the flammable and explosive working environment.

[0050] For details, see Figure 3 The explosion-proof housing 1 of the present invention includes an explosion-proof middle shell 101 , an explosion-proof front cover 102 and an explosion-proof rear cover 103 .

[0051] Among them, the explosion-proof middle shell 101 is the main structure of the explosion-proof outer shell 1, which plays the role of fixing the explosion-proof front cover 102, fixing the explosion-proof rear cover 103 and installing the infrared movement 4. Its body is a stainless steel metal part with high strength and high hardness, which can achieve better explosion-proof effect.

[0052] For example, see Figure 3 and Figure 4 In this embodiment, the explosion-proof middle shell 101 is specifically a cylinder with openings at both ends, and a cavity for installing the infrared movement 4 is defined inside it. The explosion-proof front cover 102 and the explosion-proof rear cover 103 are respectively sealed at the openings at both ends of the explosion-proof middle shell 101, so that the internal cavity of the explosion-proof middle shell 101 is in a sealed state, so that it can provide good waterproof, dustproof and explosion-proof effects for the infrared movement 4 inside it.

[0053] Of course, in other embodiments of the present invention, the shape of the explosion-proof middle shell 101 can also be truncated cone, spherical, conical, etc., and its shape can be selected according to the actual usage scenario.

[0054] In this embodiment, the explosion-proof front cover 102 is also a stainless steel metal part, which has the characteristics of high strength and high hardness, and can play a good explosion-proof effect. The explosion-proof front cover 102 can be fixedly connected to the front end of the explosion-proof middle shell 101 by means of integral molding, welding fixation, screw connection, etc. For example, see Figure 3 The explosion-proof front cover 102 is connected to the explosion-proof middle shell 101 by screws and is sealed by a sealing strip. This connection method has a simple structure and is easy to assemble.

[0055] See also Figure 1 and Figure 3 The explosion-proof front cover 102 is also provided with a lens cover 2, which is fixed to the explosion-proof front cover 102 by screws and is located on the axis of the explosion-proof middle shell 101. The lens cover 2 is made of germanium glass, which is the material of the infrared core 4 output image and serves as a monitoring test and a dustproof seal.

[0056] Similarly, in this embodiment, the explosion-proof rear cover 103 is also a stainless steel metal part, which has the characteristics of high strength and high hardness, and can play a good explosion-proof effect. The explosion-proof rear cover 103 can be fixedly connected to the rear end of the explosion-proof middle shell 101 by integral molding, welding fixation, screw connection, etc. For example, see Figure 2 and Figure 3 The explosion-proof rear cover 103 is connected to the explosion-proof middle shell 101 by screws and is sealed by a sealing strip. This connection method has a simple structure and is easy to assemble.

[0057] In this embodiment, the explosion-proof rear cover 103 and the explosion-proof middle shell 101 are both made of stainless steel. Stainless steel has a certain degree of thermal conductivity and is a heat-conducting material. This not only enhances the structural strength of the body and ensures the explosion-proof effect, but also provides the explosion-proof rear cover 103 and the explosion-proof middle shell 101 with certain heat transfer properties, providing a basis for heat dissipation from the infrared core 4 and the interior of the explosion-proof housing 1. Of course, in other embodiments, the explosion-proof rear cover 103 and the explosion-proof middle shell 101 may also be made of other materials with better heat transfer properties, such as copper alloy, aluminum alloy, etc.

[0058] For further information, see Figure 3 In this embodiment, the explosion-proof middle shell 101 includes an outer shell layer 1011 and an inner shell layer 1012. Both outer shell layer 1011 and inner shell layer 1012 are cylindrical and coaxially arranged. This arrangement not only enhances the overall structural strength of the explosion-proof middle shell 101 and ensures its explosion-proof performance, but also utilizes a double-layer structure to conduct heat and dissipate heat, thereby increasing the overall heat dissipation area of the thermal imager and improving heat dissipation uniformity, thereby avoiding heat concentration in the thermal imager.

[0059] For further information, see Figure 3 The diameter of the middle shell outer layer 1011 is larger than the diameter of the middle shell inner layer 1012, so that a heat dissipation cavity 1013 is formed between the middle shell outer layer 1011 and the middle shell inner layer 1012, and the front end and / or the rear end of the explosion-proof housing 1 are provided with heat dissipation holes 5 connected to the heat dissipation cavity 1013. For example, see Figure 1 and Figure 3 The top of the explosion-proof front cover 102 is provided with a plurality of heat dissipation holes 5 that are connected to the heat dissipation channel. This arrangement, through the heat dissipation cavity 1013 for thermal insulation, prevents the heat from the outer layer 1011 of the middle shell from being directly superimposed on the inner layer 1012 of the middle shell, thereby reducing the amount of heat transferred from the outer layer 1011 of the middle shell to the interior of the explosion-proof middle shell 101. Furthermore, the provision of the heat dissipation holes 5 allows external ambient air to enter the heat dissipation cavity 1013 to exchange heat with the outer layer 1011 and the inner layer 1012 of the middle shell, further improving the overall heat dissipation effect of the thermal imager.

[0060] See also Figure 1 In some embodiments, a mounting bracket 6 is further provided at the bottom of the explosion-proof middle shell 101. The mounting bracket 6 is used to realize on-site installation of the thermal imager in different usage scenarios and provide support for the thermal imager. For example, see Figure 4 The mounting bracket 6 may specifically be a U-shaped plate, the end of which is welded and fixed to the lower portion of the explosion-proof middle shell 101 .

[0061] See also Figure 1In some embodiments, a sunshade 7 is fixed to the explosion-proof housing 1 by screws. The sunshade 7 is an arc-shaped plate that can cover the upper half of the explosion-proof housing 1, and the front and rear ends of the sunshade 7 at least extend outward from the front and rear ends of the explosion-proof housing 1. In this way, the sunshade 7 can block sunlight for the explosion-proof housing 1 and prevent dust from falling on the explosion-proof housing 1, providing better protection for the thermal imager.

[0062] In this embodiment, the movement bracket 3 is arranged inside the explosion-proof housing 1 to provide support for the infrared movement 4 and fix the position of the infrared movement 4 so that the infrared movement 4 is just opposite to the lens cover 2.

[0063] For details, see Figure 3 The rear end of the movement bracket 3 is connected and fixed to the inner side of the explosion-proof rear cover 103, the front end of the movement bracket 3 extends to the lens hood 2 and there is a gap between the lens hood 2, and the infrared movement 4 is installed at the front end of the movement bracket 3, so that the infrared movement 4 can be directly opposite the lens hood 2 after being installed on the movement bracket 3, ensuring its imaging effect.

[0064] In this embodiment, the movement bracket 3 is made of a heat-conducting material, for example, the movement bracket 3 is made of a metal heat-conducting material. More specifically, the material of the movement bracket 3 can be copper, aluminum, or a copper-aluminum alloy. Such a configuration not only makes the movement bracket 3 have a good structural strength and can provide a stable support for the infrared movement 4, but also when the infrared movement 4 is installed on the movement bracket 3, the movement bracket 3 can act as a heat-conducting component to quickly conduct the heat of the infrared movement 4 to the explosion-proof back cover 103, thereby achieving rapid dissipation of heat from the infrared movement 4 and the internal environment of the thermal imager, avoiding heat concentration in the thermal imager, and solving the problem of inaccurate temperature measurement caused by internal high temperature and uneven temperature.

[0065] See also Figure 3 In this embodiment, the bottom and / or side surfaces of the infrared movement 4 are fitted with the movement bracket 3. For example, the bottom and side surfaces of the infrared movement 4 are both fitted with the movement bracket 3. This arrangement allows the infrared movement 4 and the movement bracket 3 to be in surface contact, which can not only ensure the installation stability of the infrared movement 4 and the movement bracket 3, but also increase the heat transfer area between the two, thereby achieving rapid heat dissipation of the infrared movement 4 and avoiding heat concentration on the infrared movement 4.

[0066] For details, see Figure 5In this embodiment, the movement bracket 3 is a U-shaped structure, which includes a bottom plate 301 and two side plates 302 fixed on both sides of the bottom plate 301. The bottom plate 301 and the two side plates 302 form a U-shaped groove, and the infrared movement 4 is installed in the U-shaped groove. In addition, the surface of the bottom plate 301 matches the shape of the bottom surface of the infrared movement 4, and the inner wall surfaces of the two side plates 302 match the shape of the two side surfaces of the infrared movement 4. When the infrared movement 4 is installed on the movement bracket 3, the bottom surface of the infrared movement 4 can be in contact with the bottom plate 301, and the two side surfaces of the infrared movement 4 can be in contact with the two side plates 302 respectively. With this arrangement, the bottom and both sides of the infrared movement 4 form surface contact with the movement bracket 3, which increases the heat transfer area between the infrared movement 4 and the movement bracket 3, can further improve the heat conduction efficiency between the infrared movement 4 and the movement bracket 3, improve the heat dissipation effect of the infrared movement 4, and can make the heat dissipation direction of the infrared movement 4 wider, the heat distribution more uniform, and avoid heat concentration.

[0067] For more details, see Figure 4 and Figure 5 The bottom plate 301 and the two side plates 302 are both flat plates, the infrared movement 4 is a rectangular structure, and the bottom and two side surfaces of the infrared movement 4 are flat structures. This arrangement can ensure that the infrared movement 4 and the movement bracket 3 are fitted together to ensure the heat transfer effect.

[0068] Furthermore, in this embodiment, a heat-conducting medium (not shown) is filled between the bottom surface of the infrared core 4 and the bottom plate 301; and / or a heat-conducting medium (not shown) is filled between the two side surfaces of the infrared core 4 and the two side plates 302. This structural limitation can be understood in the following three ways:

[0069] The first type is that only the bottom surface of the infrared core 4 and the bottom plate 301 are filled with a heat-conducting medium, while the side surfaces of the infrared core 4 and the side plates 302 are not filled with a heat-conducting medium;

[0070] The second type is that only the side of the infrared core 4 and the side plate 302 are filled with a heat-conducting medium, and the bottom surface of the infrared core 4 and the bottom plate 301 are not filled with a heat-conducting medium;

[0071] The third type is that heat-conducting medium is filled between the side surface of the infrared core 4 and the side plate 302 , and between the bottom surface of the infrared core 4 and the bottom plate 301 .

[0072] This embodiment is preferably the third way. With this arrangement, the heat transfer rate between the infrared core 4 and the core bracket 3 can be further accelerated through the heat-conducting medium, thereby improving the heat dissipation effect of the infrared core 4.

[0073] For example, in this embodiment, the heat-conducting medium may be any one of heat-conducting gel, heat-conducting grease, heat-conducting silicone pad, or heat-conducting plastic pad.

[0074] For further information, see Figure 4 and Figure 5 The rear end of the movement bracket 3 is also fixedly connected to a connecting plate 303, which is also a flat plate. During installation, the movement bracket 3 is connected to the inner wall surface of the explosion-proof rear cover 103 through the connecting plate 303, so that the movement bracket 3 can form surface contact with the explosion-proof rear cover 103 through the connecting plate 303, ensuring the heat transfer effect between the movement bracket 3 and the explosion-proof rear cover 103, and thus ensuring the outward dissipation of heat inside the explosion-proof housing 1.

[0075] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the concept of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be based on the appended claims.

Claims

1. An explosion-proof infrared thermal imager, characterized in that: include: An explosion-proof housing (1) comprises an explosion-proof middle shell (101), an explosion-proof front cover (102) arranged at the front end of the explosion-proof middle shell (101), and an explosion-proof rear cover (103) arranged at the rear end of the explosion-proof middle shell (101), wherein a lens cover (2) is arranged on the explosion-proof front cover (102), and the explosion-proof rear cover (103) is in contact with the explosion-proof middle shell (101); A movement bracket (3) is arranged in the explosion-proof middle shell (101), one end of which is fixedly connected to the explosion-proof back cover (103), and the other end of which extends to the lens cover (2) and has a gap between it and the lens cover (2); An infrared core (4) is mounted on the core support (3) and faces the lens cover (2), and the bottom surface and / or side surface of the infrared core (4) is arranged in contact with the core support (3); Wherein, the movement bracket (3), the explosion-proof back cover (103) and the explosion-proof middle shell (101) are all made of heat-conducting materials.

2. The explosion-proof infrared thermal imager according to claim 1, characterized in that: The core support (3) comprises a bottom plate (301) that fits with the bottom surface of the infrared core (4) and side plates (302) that fit with the two side surfaces of the infrared core (4); The bottom surface of the infrared core (4) is fitted with the bottom plate (301), and the two side surfaces of the infrared core (4) are fitted with the two side plates (302) respectively.

3. The explosion-proof infrared thermal imager according to claim 2, characterized in that: A heat-conducting medium is filled between the bottom surface of the infrared core (4) and the bottom plate (301); and / or A heat-conducting medium is filled between the two side surfaces of the infrared core (4) and the two side plates (302).

4. The explosion-proof infrared thermal imager according to claim 3, characterized in that: The heat-conducting medium is a heat-conducting gel, a heat-conducting grease, a heat-conducting silicone pad or a heat-conducting plastic pad.

5. The explosion-proof infrared thermal imager according to claim 1, characterized in that: The core bracket (3) is made of a metal heat-conducting material.

6. The explosion-proof infrared thermal imager according to claim 5, characterized in that: The material of the movement bracket (3) is copper, aluminum, or copper-aluminum alloy.

7. The explosion-proof infrared thermal imager according to claim 1, characterized in that: The explosion-proof middle shell (101) comprises a middle shell outer layer (1011) and a middle shell inner layer (1012); the middle shell outer layer (1011) and the middle shell inner layer (1012) are both cylindrical, and the middle shell outer layer (1011) and the middle shell inner layer (1012) are coaxially arranged; the diameter of the middle shell outer layer (1011) is larger than the diameter of the middle shell inner layer (1012), so that a heat dissipation cavity (1013) is formed between the middle shell outer layer (1011) and the middle shell inner layer (1012); The front end and / or the rear end of the explosion-proof housing (1) are provided with heat dissipation holes (5) that are in communication with the heat dissipation cavity (1013).

8. The explosion-proof infrared thermal imager according to claim 7, characterized in that: The explosion-proof front cover (102) is provided with a plurality of heat dissipation holes (5) connected to the heat dissipation cavity (1013).

9. The explosion-proof infrared thermal imager according to claim 1, characterized in that: A mounting bracket (6) is provided at the bottom of the explosion-proof middle shell (101).

10. The explosion-proof infrared thermal imager according to claim 1, characterized in that: The explosion-proof housing (1) is provided with a sunshade (7) covering the upper half of the explosion-proof housing (1).

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