Heat insulation window structure and thermal imaging equipment

Abstract

The utility model discloses a heat insulation window structure and thermal imaging equipment, which are applied to the technical field of instrument equipment. The heat insulation window structure comprises a shell, a display screen and a glass assembly, a mounting cavity is formed in the shell, one end of the shell is provided with a mounting edge, and a window communicated with the mounting cavity is defined by the mounting edge; the display screen is accommodated in the mounting cavity and is arranged corresponding to the window; the glass assembly is contained in the mounting cavity, the glass assembly is arranged between the mounting edge and the display screen, the window is blocked by the glass assembly, the glass assembly and the display screen are arranged at an interval, and the glass assembly is in sealing fit with the mounting edge and the inner circumferential wall of the mounting cavity; the glass assembly comprises a heat insulation frame and multiple layers of heat insulation glass installed on the heat insulation frame, and the multiple layers of heat insulation glass are sequentially arranged at intervals in the direction from the installation edge to the display screen so that a gap can be formed between any two adjacent layers of heat insulation glass. The heat insulation window structure and the thermal imaging equipment have the advantages of light weight, good heat insulation effect and high reliability, and the size of the equipment is prevented from being increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to instrument equipment technical field, especially a kind of heat insulation window structure and thermal imaging equipment. BACKGROUND

[0002] Thermal imaging equipment, such as infrared thermal imager used in fire fighting, the window structure equipped is the main heat entry point, so the heat insulation design of window structure is crucial. At present, most infrared thermal imagers usually adopt the mode of thickening heat insulation glass, or increasing the distance from display screen to heat insulation glass, or adding a layer of PC (Polycarbonate) sheet inside window structure to realize cooling for display screen.

[0003] However, the mode of thickening heat insulation glass will lead to large weight of window structure and affect display effect; increasing the distance from display screen to heat insulation glass will lead to large space occupation of window structure and increase equipment volume; and the mode of adding a layer of PC sheet inside window structure, PC sheet itself is not resistant to high temperature, and is prone to aging and yellowing during long time use, affecting observation effect of display screen, in addition, no closed space is formed between PC sheet and heat insulation glass, and air flowing between them will conduct heat with equipment interior, reducing heat insulation effect and reliability. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of heat insulation window structure and thermal imaging equipment, to solve the technical problems that the heat insulation design of existing window structure will lead to large weight, large volume or poor reliability.

[0005] To achieve the above-mentioned purpose, the utility model provides a kind of heat insulation window structure, the heat insulation window structure includes:

[0006] Shell, installation cavity is formed in the shell, the shell has installation edge at one end, the installation edge surrounds window communicating with the installation cavity;

[0007] Display screen, the display screen is housed in the installation cavity, and is set corresponding to the window;

[0008] Glass assembly, the glass assembly is housed in the installation cavity, the glass assembly is set between the installation edge and the display screen, the glass assembly blocks the window and is spaced apart from the display screen, and the glass assembly is sealingly engaged with the installation edge and the inner peripheral wall of the installation cavity;The glass assembly includes heat insulation frame and multiple layers of heat insulation glass mounted on the heat insulation frame, and the multiple layers of heat insulation glass are sequentially and spaced apart in the direction from the installation edge to the display screen, so that a gap is formed between any two adjacent layers of the heat insulation glass.

[0009] In an embodiment, the heat insulation frame extends inwardly to form a mounting wall corresponding to the position of each gap; the mounting wall forms two mounting sides respectively facing the mounting edge and the display screen; the two adjacent heat insulation glasses forming the gap are mounted on the two mounting sides of the mounting wall respectively.

[0010] In an embodiment, the mounting side and the corresponding heat insulation glass are bonded and sealed by back adhesive.

[0011] In an embodiment, the heat insulation frame comprises a limiting wall extending along the direction from the mounting edge to the display screen; the mounting wall extends inwardly from the inner circumferential wall of the limiting wall; the inner circumferential wall of the limiting wall abuts the outer circumferential wall of each heat insulation glass.

[0012] In an embodiment, the two heat insulation glasses adjacent to the mounting edge and the display screen in the glass assembly are a first heat insulation glass and a second heat insulation glass respectively; the first heat insulation glass protrudes from the limiting wall in the direction of the mounting edge; the second heat insulation glass protrudes from the limiting wall in the direction of the display screen; the first heat insulation glass is sealed with the mounting edge; the inner circumferential wall of the mounting cavity is sealed with the first heat insulation glass, the limiting wall and the second heat insulation glass.

[0013] In an embodiment, the first heat insulation glass and the mounting edge are bonded and sealed by back adhesive; the inner circumferential wall of the mounting cavity forms an extension wall around the glass assembly; the extension wall extends from the mounting edge to the display screen; the extension wall forms a sealed gap with the first heat insulation glass, the limiting wall and the second heat insulation glass; the sealed gap is filled with sealing adhesive for bonding and sealing.

[0014] In an embodiment, the sealing adhesive extends in the direction from the mounting edge to the display screen; the sealing adhesive covers one end of the limiting wall facing the mounting edge and fills at least the second heat insulation glass; the thickness direction of the second heat insulation glass is consistent with the direction from the mounting edge to the display screen.

[0015] In an embodiment, the sealing adhesive is dispensed into the sealed gap in the direction from the mounting edge to the display screen.

[0016] In an embodiment, a sealing ring is provided outside the glass assembly; the first heat insulation glass and the mounting edge, the inner circumferential wall of the mounting cavity and the first heat insulation glass, the limiting wall and the second heat insulation glass are sealed by the sealing ring.

[0017] In one embodiment, the sealing ring includes a first sealing portion, a second sealing portion, and a connecting portion. The first sealing portion and the second sealing portion are spaced apart along the direction from the mounting edge to the display screen. The connecting portion connects the first sealing portion and the second sealing portion. The first sealing portion is clamped between the first heat-insulating glass and the mounting edge. The second sealing portion is clamped between the second heat-insulating glass and a bracket. The bracket is received in the mounting cavity and connected to the housing. The connecting portion is clamped between the inner peripheral wall of the mounting cavity and the first heat-insulating glass, the limiting wall, and the second heat-insulating glass.

[0018] In one embodiment, the inner peripheral wall of the mounting cavity forms an extension wall surrounding the glass assembly, the extension wall extending from the mounting edge to the display screen. The bracket includes a first support wall and a second support wall, the two ends of the first support wall being a first end and a second end, respectively. The first end is disposed close to the extension wall, and the second end is connected to the second support wall. The second support wall cooperates with the second heat-insulating glass to clamp the second sealing portion. The extension wall, the first heat-insulating glass, and the limiting wall cooperate, and the first support wall and the second heat-insulating glass cooperate to clamp the connecting portion together.

[0019] This utility model also proposes a thermal imaging device, which includes a main body and a heat-insulating window structure as described above, with the other end of the housing positioned relative to the window mounted on the main body.

[0020] Compared to the existing technology that uses single-layer heat-insulating glass of the same thickness, this utility model uses glass components of the same thickness as single-layer heat-insulating glass, and achieves a hollow design while having multiple layers of heat-insulating glass, which not only improves the heat insulation effect, but also makes it lighter.

[0021] Compared to existing technologies that increase the distance between the display screen and the heat-insulating glass, for example, from 1mm to 4mm-5mm, this invention can use a glass assembly with the same thickness as a single layer of heat-insulating glass. The glass assembly utilizes multiple layers of heat-insulating glass, such as two layers of heat-insulating glass, to improve the heat insulation effect without increasing the distance between the heat-insulating glass and the display screen. This results in a compact structure, saving space and avoiding increasing the size of the equipment.

[0022] Compared to existing technologies that add a layer of PC sheet inside the window structure, this invention adds a PC sheet and uses a glass assembly to seal the window. The glass assembly and the mounting edge, as well as the glass assembly and the inner wall of the mounting cavity, are sealed together, which improves the reliability of the seal. This not only prevents external water and moisture from entering and protects the electronic components inside the mounting cavity from water immersion or moisture, ensuring normal operation, but also prevents heat transfer from airflow, improving the heat insulation effect. The high reliability prevents the electronic components inside the mounting cavity, including the display screen, from aging and yellowing after long-term use. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional schematic diagram of a heat-insulating window structure according to an embodiment of the present invention;

[0025] Figure 2 for Figure 1 Enlarged view of region A in the middle;

[0026] Figure 3 This is a cross-sectional schematic diagram of the heat-insulating window structure according to another embodiment of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of region B in the middle.

[0028] Explanation of icon numbers:

[0029] 100. Window structure; 10. Housing; 11. Mounting cavity; 12. Mounting edge; 13. Window; 14. Extension wall; 20. Display screen; 30. Glass assembly; 31. Heat insulation frame; 311. Mounting wall; 3111. Mounting side; 312. Limiting wall; 32. Heat-insulating glass; 321. First heat-insulating glass; 322. Second heat-insulating glass; 33. Gap; 40. Adhesive backing; 50. Sealant; 60. Sealing gap; 70. Sealing ring; 71. First sealing part; 72. Second sealing part; 73. Connecting part; 80. Bracket; 81. First support wall; 82. Second support wall; 200. Main body.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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.

[0032] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] Thermal imaging equipment, such as infrared thermal imagers used in firefighting, relies heavily on its viewing window structure as the primary point of heat entry. Therefore, the heat insulation design of the viewing window structure is crucial. Currently, most infrared thermal imagers typically use thicker heat-insulating glass, increase the distance between the display screen and the heat-insulating glass, or add a layer of PC (Polycarbonate) sheet inside the viewing window structure to cool the display screen.

[0035] However, using thicker heat-insulating glass results in a heavier window structure and affects the display effect; increasing the distance between the display screen and the heat-insulating glass leads to the window structure occupying a larger portion of the overall thickness space, increasing the device size; while adding a layer of PC sheet inside the window structure is problematic because PC sheet itself is not heat-resistant and is prone to aging and yellowing over time, affecting the viewing effect of the display screen. In addition, there is no sealed space between the PC sheet and the heat-insulating glass, and the air flowing between them will conduct heat with the inside of the device, reducing the heat insulation effect and resulting in poor reliability.

[0036] This utility model provides a heat-insulating window structure and thermal imaging device that solve the above problems.

[0037] In one embodiment, the heat-insulating window structure 100 includes a housing 10, a display screen 20, and a glass assembly 30. The housing 10 has a mounting cavity 11, and one end of the housing 10 has a mounting edge 12 that forms a window 13 communicating with the mounting cavity 11. The display screen 20 is housed within the mounting cavity 11 and is positioned corresponding to the window 13. The glass assembly 30 is housed within the mounting cavity 11 and is positioned between the mounting edge 12 and the display screen 20. The glass assembly 30 blocks the window 13 and is spaced apart from the display screen 20. The glass assembly 30 is sealed to the mounting edge 12 and the inner peripheral wall of the mounting cavity 11. The glass assembly 30 includes a heat-insulating frame 31 and multiple layers of heat-insulating glass 32 mounted on the heat-insulating frame 31. The multiple layers of heat-insulating glass 32 are sequentially spaced along the direction from the mounting edge 12 to the display screen 20, so that a gap 33 is formed between any two adjacent layers of heat-insulating glass 32.

[0038] The heat-insulating window structure 100 of this utility model can be applied to equipment with a window structure that requires heat insulation, such as thermal imaging equipment, visible light imaging equipment, etc. In this embodiment, the heat-insulating window structure 100 is described using an infrared thermal imager for fire protection as an example.

[0039] like Figures 1 to 4 As shown, the front end of the housing 10 has a mounting edge 12, which forms a window 13 communicating with the mounting cavity 11 inside the housing 10 to ensure visualization. The display screen 20 and the glass assembly 30 are both housed within the mounting cavity 11. The display screen 20 is positioned corresponding to the window 13, and the glass assembly 30 is positioned between the mounting edge 12 and the display screen 20. That is, the mounting edge 12, the glass assembly 30, and the display screen 20 are arranged sequentially from front to back, allowing observation of the display effect of the display screen 20 through the window 13 and the glass assembly 30. Understandably, in addition to housing the display screen 20 and the glass assembly 30, the mounting cavity 11 can also house other electronic components of the thermal imaging device. The glass assembly 30 seals the window 13, preventing external water and moisture from entering the mounting cavity 11 of the housing 10 through the window 13, thereby protecting the electronic components inside the mounting cavity 11 from water immersion or moisture and ensuring normal operation. The glass assembly 30 is spaced apart from the display screen 20 to achieve a heat insulation effect. In addition, the sealed fit between the glass assembly 30 and the mounting edge 12, and between the glass assembly 30 and the inner peripheral wall of the mounting cavity 11, improves the sealing reliability. This not only prevents external water and moisture from entering and protects the electronic components in the mounting cavity 11 from water immersion or moisture, ensuring normal operation, but also prevents heat transfer from airflow, improving the heat insulation effect and ensuring high reliability. This also prevents the electronic components in the mounting cavity 11, including the display screen 20, from aging and yellowing after long-term use.

[0040] Furthermore, in the heat-insulating window structure 100, the glass assembly 30 includes a heat-insulating frame 31 and multiple layers of heat-insulating glass 32 mounted on the heat-insulating frame 31. The multiple layers of heat-insulating glass 32 are sequentially spaced along the direction from the mounting edge 12 to the display screen 20, that is, the multiple layers of heat-insulating glass 32 are sequentially spaced from front to back, so that a gap 33 is formed between any two adjacent layers of heat-insulating glass 32, that is, the space between any two adjacent layers of heat-insulating glass 32 in the glass assembly 30 is hollow. The heat-insulating window structure 100 of this utility model adopts this design and has the following advantages:

[0041] Compared with the existing technology that uses single-layer heat-insulating glass 32 of the same thickness, in this utility model, a glass component 30 of the same thickness as single-layer heat-insulating glass 32 is used, and a hollow design is achieved while having multiple layers of heat-insulating glass 32, which not only improves the heat insulation effect, but also makes it lighter.

[0042] Compared to the existing technology that increases the distance between the display screen 20 and the heat insulation glass 32, for example, increasing the distance between the display screen 20 and the heat insulation glass 32 from 1mm to 4mm-5mm, this utility model can use a glass component 30 with the same thickness as the single-layer heat insulation glass 32. The glass component 30 can improve the heat insulation effect by using its multiple layers of heat insulation glass 32 spaced apart, such as two layers of heat insulation glass 32 spaced apart, without increasing the distance between the heat insulation glass 32 and the display screen 20. The structure is compact, thereby saving space and avoiding increasing the size of the equipment.

[0043] Compared to the existing technology that adds a layer of PC sheet inside the window structure 100, this utility model adds a PC sheet and uses glass assembly 30 to seal the window 13. The glass assembly 30 and the mounting edge 12 are sealed together, and the glass assembly 30 and the inner peripheral wall of the mounting cavity 11 are sealed together, which improves the sealing reliability. This not only prevents external water and moisture from entering, but also prevents the electronic components in the mounting cavity 11 from being immersed in water or damp, ensuring normal operation. It also prevents heat transfer from air flow, improves the heat insulation effect, and has high reliability. In addition, it prevents the electronic components in the mounting cavity 11, including the display screen 20, from aging and yellowing after long-term use.

[0044] In one embodiment, the heat insulation frame 31 extends into the gap 33 corresponding to the position of each gap 33 to form a mounting wall 311; the mounting wall 311 forms two mounting sides 3111 on the side facing the mounting edge 12 and the side facing the display screen 20, respectively, and the two adjacent layers of heat insulation glass 32 forming the gap 33 are respectively installed on the two mounting sides 3111 of the mounting wall 311.

[0045] like Figures 1 to 4As shown, the heat insulation frame 31 is an annular closed structure surrounding the periphery of the multi-layer heat-insulating glass 32, and the heat insulation frame 31 extends into the gaps 33 corresponding to the positions of each gap 33 to form a mounting wall 311. The mounting wall 311 forms two mounting sides 3111 on the side facing the mounting edge 12 and the side facing the display screen 20, respectively. That is, two mounting sides 3111 are formed on the front and rear sides of the mounting wall 311. The two adjacent layers of heat-insulating glass 32 that form the gaps 33 into which the mounting wall 311 extends are respectively installed on the two mounting sides 3111 of the mounting wall 311. That is, among the two adjacent layers of heat-insulating glass 32 that form the gaps 33 into which the mounting wall 311 extends, the front layer of heat-insulating glass 32 is installed on the front mounting side 3111 of the mounting wall 311, and the rear layer of heat-insulating glass 32 is installed on the rear mounting layer of the mounting wall 311, thereby realizing the assembly of the glass assembly 30. Furthermore, the mounting wall 311 separates the two adjacent layers of heat-insulating glass 32 while installing the heat-insulating glass 32, so that a gap 33 is formed between the two adjacent layers of heat-insulating glass 32, realizing the hollow design of the glass assembly 30, which reduces weight and improves the heat insulation effect.

[0046] In one embodiment, each mounting side 3111 is bonded and sealed to the corresponding heat-insulating glass 32 by adhesive backing 40. The adhesive backing 40 is used to bond and seal each heat-insulating glass 32 to the corresponding mounting side 3111, thereby facilitating the assembly and sealing of the glass assembly 30.

[0047] In one embodiment, the heat insulation frame 31 includes a limiting wall 312 that extends along the mounting edge 12 to the display screen 20. A mounting wall 311 extends from the inner peripheral wall of the limiting wall 312 toward the gap 33. The inner peripheral wall of the limiting wall 312 abuts against the outer peripheral wall of each heat insulation glass 32.

[0048] like Figures 1 to 4 As shown, the limiting wall 312 extends from front to back, corresponding to the positions of each gap 33. The limiting wall 312 extends from its inner peripheral wall into the gap 33 to form the mounting wall 311, making the mounting wall 311 integrally formed on the limiting wall 312. This eliminates the assembly steps and assembly gaps 33, simplifying manufacturing. The heat insulation frame 31 can be made of rigid plastic or metal with good high-temperature resistance and heat insulation effect, i.e., low thermal conductivity. In the heat insulation frame 31, the inner peripheral wall of the limiting wall 312 abuts against the outer peripheral wall of each heat-insulating glass 32, acting as a limiting element and improving the assembly stability of the heat-insulating glass 32 and the heat insulation frame 31 support 80.

[0049] In one embodiment, in the glass assembly 30, the two layers of heat-insulating glass 32 near the mounting edge 12 and near the display screen 20 are respectively a first heat-insulating glass 321 and a second heat-insulating glass 322. The first heat-insulating glass 321 protrudes from the limiting wall 312 toward the mounting edge 12, and the second heat-insulating glass 322 protrudes from the limiting wall 312 toward the display screen 20. The first heat-insulating glass 321 is sealed to the mounting edge 12, and the inner peripheral wall of the mounting cavity 11 is sealed to the first heat-insulating glass 321, the limiting wall 312, and the second heat-insulating glass 322.

[0050] Understandably, such as Figures 1 to 4 As shown, when the glass assembly 30 includes two layers of heat-insulating glass 32, the front layer of heat-insulating glass 32 is positioned closer to the mounting edge 12 and is designated as the first heat-insulating glass 321; the rear layer of heat-insulating glass 32 is positioned closer to the display screen 20 and is designated as the second heat-insulating glass 322. When the glass assembly 30 includes three, four, or five layers of heat-insulating glass 32, the frontmost layer of heat-insulating glass 32 is positioned closer to the mounting edge 12 and is designated as the first heat-insulating glass 321, while the rearmost layer of heat-insulating glass 32 is positioned closer to the display screen 20 and is designated as the second heat-insulating glass 322. The glass assembly 30 preferably uses two layers of heat-insulating glass 32.

[0051] The first heat-insulating glass 321 protrudes from the limiting wall 312 towards the mounting edge 12, meaning the frontmost heat-insulating glass 32 protrudes forward from the front end of the limiting wall 312; the second heat-insulating glass 322 protrudes from the limiting wall 312 towards the display screen 20, meaning the rearmost heat-insulating glass 32 protrudes backward from the rear end of the limiting wall 312. This design ensures that the first and second heat-insulating glasses 321 and 322 are not completely obscured by the limiting wall 312, allowing for a sealed fit with the inner peripheral wall of the mounting cavity 11. The sealing fit between the frontmost heat-insulating glass 32 and the mounting edge 12 not only seals the window 13 but also improves the assembly sealing with the housing 10. The inner peripheral wall of the mounting cavity 11 is sealed to the first heat-insulating glass 321, the limiting wall 312 and the second heat-insulating glass 322. Specifically, the inner peripheral wall of the mounting cavity 11 is sealed to the portion of the first heat-insulating glass 321 that protrudes forward from the front end of the limiting wall 312, and the portions of the limiting wall 312 and the second heat-insulating glass 322 that protrude backward from the rear end of the limiting wall 312, thereby improving the assembly sealing between the glass assembly 30 and the housing 10.

[0052] like Figure 1 and Figure 2As shown, in one embodiment, the first heat-insulating glass 321 is bonded and sealed to the mounting edge 12 by adhesive 40. The inner peripheral wall of the mounting cavity 11 forms an extension wall 14 that is arranged around the glass assembly 30. The extension wall 14 extends from the mounting edge 12 to the display screen 20. The extension wall 14 forms a sealing gap 60 with the first heat-insulating glass 321, the limiting wall 312 and the second heat-insulating glass 322, and is bonded and sealed by sealant 50 filled in the sealing gap 60.

[0053] The inner peripheral wall of the mounting cavity 11 extends rearward from the mounting edge 12 to form an extension wall 14. During the assembly of the window structure 100, the glass assembly 30 is first assembled, the housing 10 is inverted with the window 13 facing rearward, and the glass assembly 30 is placed in the space enclosed by the extension wall 14 in the mounting cavity 11 with the first heat-insulating glass 321 facing the mounting edge 12, so that the extension wall 14 surrounds the glass assembly 30. The first heat-insulating glass 321 of the glass assembly 30 is bonded to the mounting edge 12 by the adhesive backing 40, thereby achieving the pre-fixation of the glass assembly 30 and the housing 10. In addition, the adhesive backing 40 can seal the mounting edge 12 and the glass assembly 30, improve the assembly sealing performance, and prevent glue leakage during the subsequent glue dispensing process. After the glass assembly 30 is pre-fixed, the extension wall 14 forms a sealing gap 60 with the first heat-insulating glass 321, the limiting wall 312 and the second heat-insulating glass 322. Specifically, the extension wall 14 and the portion of the first heat-insulating glass 321 protruding forward from the front end of the limiting wall 312, and the portion of the limiting wall 312 and the portion of the second heat-insulating glass 322 protruding backward from the rear end of the limiting wall 312 form a sealing gap 60. The sealing gap 60 is filled with sealant 50 so that the glass assembly 30 and the extension wall 14 of the housing 10 are bonded and sealed by the sealant 50, thereby improving the assembly sealing performance while achieving assembly.

[0054] In one embodiment, the sealant 50 extends along the direction from the mounting edge 12 to the display screen 20, and the sealant 50 covers one end of the limiting wall 312 facing the display screen 20, and at least fills the second heat-insulating glass 322, the thickness direction of the second heat-insulating glass 322 being consistent with the direction from the mounting edge 12 to the display screen 20.

[0055] like Figure 1 and Figure 2As shown, the sealant 50 extends from front to back, covering the front end of the limiting wall 312 and filling at least to the last layer of insulating glass 32. This increases the contact area between the sealant 50 and the glass assembly 30 and the extension wall 14 of the housing 10, further improving assembly stability and sealing reliability. It also avoids sealing dead zones, completely sealing the gap 33 between adjacent layers of insulating glass 32 in the glass assembly 30 to prevent airflow and heat transfer between adjacent layers, further improving the insulation effect. It also prevents air from flowing into the sealing gap 60 from the last insulating glass 32 and transferring heat, thus improving the insulation effect. Understandably, the thickness direction of the second insulating glass 322 is from front to back.

[0056] In a preferred embodiment, the sealant 50 covers the front end of the limiting wall 312 and extends rearward to at least half the thickness of the last layer of insulating glass 32, further increasing the contact area between the sealant 50 and the glass assembly 30 and the extension wall 14 of the housing 10, thereby improving assembly stability and sealing reliability. Furthermore, it further enhances the sealing reliability of completely sealing the gap 33 between two adjacent layers of insulating glass 32 in the glass assembly 30, and improves the insulation reliability between the last layer of insulating glass 32 and the air behind it, ensuring the insulation effect.

[0057] In one embodiment, the sealant 50 is formed by applying adhesive in a dotting motion along the mounting edge 12 towards the display screen 20 into the sealing gap 60, that is, by applying adhesive from front to back into the sealing gap 60 to form the sealant 50, thereby achieving the process of filling the sealing gap 60 with the sealant 50. It can be understood that the sealant 50 can also fill and seal the assembly gap 33 between the heat insulation frame 31 and each heat insulation glass 32. The sealant 50 can be an adhesive with good high-temperature resistance and heat insulation effect.

[0058] like Figure 3 and Figure 4 As shown, in another embodiment, the glass assembly 30 is fitted with a sealing ring 70, and the first heat-insulating glass 321 and the mounting edge 12, as well as the inner peripheral wall of the mounting cavity 11 and the first heat-insulating glass 321, the limiting wall 312 and the second heat-insulating glass 322 are all sealed together by the sealing ring 70.

[0059] After assembling the glass assembly 30, a sealing ring 70 is fitted over the glass assembly 30, and the glass assembly 30 with the sealing ring 70 is placed into the mounting cavity 11. The sealing assembly between the glass assembly 30 and the housing 10 is achieved by the compression of the sealing ring 70 between the first heat-insulating glass 321 and the mounting edge 12, and between the inner peripheral wall of the mounting cavity 11 and the first heat-insulating glass 321, the limiting wall 312 and the second heat-insulating glass 322. This method is simple, convenient and easy to manufacture.

[0060] Specifically, the sealing ring 70 includes a first sealing part 71, a second sealing part 72, and a connecting part 73. The first sealing part 71 and the second sealing part 72 are spaced apart along the direction from the mounting edge 12 to the display screen 20. The connecting part 73 connects the first sealing part 71 and the second sealing part 72. The first sealing part 71 is clamped between the first heat-insulating glass 321 and the mounting edge 12. The second sealing part 72 is clamped between the second heat-insulating glass 322 and a bracket 80. The bracket 80 is housed in the mounting cavity 11 and connected to the housing 10. The connecting part 73 is clamped between the inner peripheral wall of the mounting cavity 11 and the first heat-insulating glass 321, the limiting wall 312, and the second heat-insulating glass 322.

[0061] like Figure 4 As shown, the first sealing portion 71 and the second sealing portion 72 of the sealing ring 70 are spaced apart in the front-to-back direction, and the connecting portion 73 connects the first sealing portion 71 and the second sealing portion 72. The first sealing portion 71 is clamped between the first heat-insulating glass 321 and the mounting edge 12, providing a sealing function. The second sealing portion 72 is clamped between the second heat-insulating glass 322 and a bracket 80, providing a sealing function. The bracket 80 is housed within the mounting cavity 11 and connected to the housing 10. The connecting portion 73 is clamped between the inner peripheral wall of the mounting cavity 11 and the first heat-insulating glass 321, the limiting wall 312, and the second heat-insulating glass 322. Specifically, it is clamped between the inner peripheral wall of the mounting cavity 11 and the portion of the first heat-insulating glass 321 protruding forward beyond the front end of the limiting wall 312, and the portion of the limiting wall 312 and the second heat-insulating glass 322 protruding backward beyond the rear end of the limiting wall 312, providing a sealing function and thereby improving the assembly sealing performance between the glass assembly 30 and the housing 10. The sealing ring 70 can be made of silicone or rubber with good high temperature resistance and heat insulation effect.

[0062] Furthermore, the inner peripheral wall of the mounting cavity 11 forms an extension wall 14 surrounding the glass assembly 30. The extension wall 14 extends from the mounting edge 12 to the display screen 20. The bracket 80 includes a first support wall 81 and a second support wall 82. The two ends of the first support wall 81 are a first end and a second end, respectively. The first end is located close to the extension wall 14, and the second end is connected to the second support wall 82. The second support wall 82 cooperates with the second heat-insulating glass 322 to clamp the second sealing part 72. The extension wall 14 cooperates with the first heat-insulating glass 321 and the limiting wall 312, and the first support wall 81 cooperates with the second heat-insulating glass 322 to clamp the connecting part 73.

[0063] like Figure 4As shown, the inner peripheral wall of the mounting cavity 11 extends rearward from the mounting edge 12 to form an extension wall 14. The first support wall 81 of the bracket 80 extends along the mounting wall 311 to the display screen 20, that is, from front to back, while the second support wall 82 is arranged side by side with the second heat-insulating glass 322. The front and rear ends of the first support wall 81 are respectively the first end and the second end. The first end is located close to the extension wall 14, and the second end is connected to the outer edge of the second support wall 82. The second support wall 82 cooperates with the second heat-insulating glass 322 to clamp the second sealing part 72 to achieve a seal. The extension wall 14 specifically cooperates with the first heat-insulating glass 321 and the limiting wall 312. The first support wall 81 specifically cooperates with the second heat-insulating glass 322 to clamp the connecting part 73 to achieve a seal. The structural design is reasonable and easy to assemble.

[0064] In the heat-insulating window structure 100 of this utility model, the thickness of the multi-layer heat-insulating glass 32 of the glass component 30 can be flexibly set according to actual usage requirements. The thickness of the multi-layer heat-insulating glass 32 can be the same, partially the same and partially different, or completely different, thus improving design flexibility.

[0065] This utility model also proposes a thermal imaging device, which includes a main body 200 and the aforementioned heat-insulating window structure 100, with the other end of the housing 10 positioned opposite the window 13 and mounted on the main body 200. For example... Figure 1 and Figure 3 As shown, the rear end of the housing 10, positioned relative to the window 13, is mounted on the main body 200, thus assembling the window structure 100 with the main body 200. The thermal imaging device can be an infrared thermal imager or a security device, etc. The specific structure and usage of this heat-insulated window structure 100 are as described in the above embodiments. Since this thermal imaging device employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be elaborated upon here.

[0066] The above description is only an optional embodiment of the present utility model and does not limit the scope of protection of the present utility model. All equivalent structural transformations made under the technical concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present utility model.

Claims

1. A heat-insulating window structure, characterized in that, The heat-insulating window structure includes: A housing having a mounting cavity formed within it, and one end of the housing having a mounting edge that forms a window communicating with the mounting cavity; A display screen, which is housed within the mounting cavity and is positioned corresponding to the window; A glass assembly is housed within the mounting cavity and disposed between the mounting edge and the display screen. The glass assembly seals the window and is spaced apart from the display screen, and the glass assembly is sealed to the mounting edge and the inner peripheral wall of the mounting cavity. The glass assembly includes a heat insulation frame and multiple layers of heat-insulating glass mounted on the heat insulation frame. The multiple layers of heat-insulating glass are sequentially spaced along the direction from the mounting edge to the display screen, so that a gap is formed between any two adjacent layers of heat-insulating glass.

2. The heat-insulating window structure as described in claim 1, characterized in that, The heat insulation frame extends into the gaps corresponding to the positions of each gap to form a mounting wall; the mounting wall forms two mounting sides on the side facing the mounting edge and the side facing the display screen, and the two adjacent layers of heat insulation glass forming the gaps are respectively installed on the two mounting sides of the mounting wall.

3. The heat-insulating window structure as described in claim 2, characterized in that, Each of the mounting sides is bonded and sealed to the corresponding heat-insulating glass using adhesive backing.

4. The heat-insulating window structure as described in claim 2, characterized in that, The heat insulation frame includes a limiting wall that extends along the mounting edge to the display screen. The mounting wall extends from the inner peripheral wall of the limiting wall toward the gap, and the inner peripheral wall of the limiting wall abuts against the outer peripheral wall of each of the heat insulation glasses.

5. The heat-insulating window structure as described in claim 4, characterized in that, In the glass assembly, the two layers of heat-insulating glass near the mounting edge and near the display screen are respectively a first heat-insulating glass and a second heat-insulating glass. The first heat-insulating glass protrudes from the limiting wall towards the mounting edge, and the second heat-insulating glass protrudes from the limiting wall towards the display screen. The first heat-insulating glass is sealed to the mounting edge, and the inner peripheral wall of the mounting cavity is sealed to the first heat-insulating glass, the limiting wall, and the second heat-insulating glass.

6. The heat-insulating window structure as described in claim 5, characterized in that, The first heat-insulating glass is bonded and sealed to the mounting edge by adhesive backing. The inner peripheral wall of the mounting cavity forms an extension wall surrounding the glass assembly. The extension wall extends from the mounting edge to the display screen. The extension wall forms a sealing gap with the first heat-insulating glass, the limiting wall, and the second heat-insulating glass, and is bonded and sealed by sealant filled in the sealing gap.

7. The heat-insulating window structure as described in claim 6, characterized in that, The sealant extends along the mounting edge to the display screen, and covers one end of the limiting wall facing the mounting edge, and fills at least into the second heat-insulating glass, the thickness direction of the second heat-insulating glass being consistent with the direction from the mounting edge to the display screen.

8. The heat-insulating window structure as described in claim 7, characterized in that, The sealant is applied by dispensing it into the sealing gap along the mounting edge towards the display screen.

9. The heat-insulating window structure as described in claim 5, characterized in that, The glass assembly is fitted with a sealing ring, and the first heat-insulating glass and the mounting edge, the inner peripheral wall of the mounting cavity and the first heat-insulating glass, the limiting wall and the second heat-insulating glass are all sealed together by the sealing ring.

10. The heat-insulating window structure as described in claim 9, characterized in that, The sealing ring includes a first sealing part, a second sealing part, and a connecting part. The first sealing part and the second sealing part are spaced apart along the direction from the mounting edge to the display screen. The connecting part connects the first sealing part and the second sealing part. The first sealing part is clamped between the first heat-insulating glass and the mounting edge. The second sealing part is clamped between the second heat-insulating glass and a bracket. The bracket is housed in the mounting cavity and connected to the housing. The connecting part is clamped between the inner peripheral wall of the mounting cavity and the first heat-insulating glass, the limiting wall, and the second heat-insulating glass.

11. The heat-insulating window structure as described in claim 10, characterized in that, The inner peripheral wall of the mounting cavity forms an extension wall surrounding the glass assembly. The extension wall extends from the mounting edge to the display screen. The bracket includes a first support wall and a second support wall. The two ends of the first support wall are a first end and a second end, respectively. The first end is located close to the extension wall, and the second end is connected to the second support wall. The second support wall cooperates with the second heat-insulating glass to clamp the second sealing part. The extension wall cooperates with the first heat-insulating glass and the limiting wall, and the first support wall cooperates with the second heat-insulating glass to clamp the connecting part.

12. A thermal imaging device, characterized in that, The thermal imaging device includes a main body and a heat-insulated window structure as described in any one of claims 1 to 11, wherein the other end of the housing is mounted on the main body relative to the window.

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