Protective structure of inspection terminal and protective shell thereof

Abstract

The utility model relates to the technical field of inspection equipment protection, especially to a kind of protection structure and protective shell of inspection terminal, it can give consideration to sealing dustproof moisture-proof, efficient heat dissipation and impact protection;Including shell main body, buffer layer and heat dissipation module;Shell main body inside is equipped with the chamber for accommodating inspection terminal and heat dissipation module;Buffer layer is coated in the outside of shell main body;Heat dissipation module includes semiconductor refrigeration unit and airflow circulation unit, semiconductor refrigeration unit is divided into equipment installation cavity and heat exchange cavity independent of each other, its cold end is towards equipment installation cavity, hot end is towards heat exchange cavity, and is connected with radiating fin group;Airflow circulation unit is set in heat exchange cavity, for driving airflow to flow through radiating fin group;Shell main body is equipped with air inlet channel and air outlet channel with heat exchange cavity communication, and filter piece for blocking outside pollutant is passed in passage.

Description

Technical Field

[0001] This utility model relates to the technical field of protection for inspection equipment, and in particular to a protective structure for an inspection terminal and its protective shell. Background Technology

[0002] Inspection terminals are essential equipment widely used in field operations in industries such as power, petrochemicals, and railways. They typically integrate a handheld host, display screen, battery, scanning module, communication module, and various sensors. Due to the complex and variable operating environment, inspection terminals are frequently subjected to external impacts such as drops, bumps, and continuous vibrations during long-term use, which can easily damage internal electronic components, affecting the equipment's accuracy and lifespan. Furthermore, the dust and humidity commonly present in the field environment also threaten the stable operation of the terminals.

[0003] Currently, most inspection terminal protective shells adopt a closed or semi-closed design, and generally add buffer pads at the corners to cope with mechanical impacts. The closed structure has good dustproof performance, but because the shell is completely sealed, the heat generated by the equipment operation is difficult to dissipate effectively, and tends to accumulate inside, causing the terminal to overheat, which in turn affects performance stability and equipment lifespan. Although the semi-closed structure improves heat dissipation by opening ventilation holes, it introduces the risk of dust and moisture intrusion, and the protective effect is greatly reduced in humid or dusty working conditions. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a protective structure for an inspection terminal and its protective shell.

[0005] This utility model discloses a protective shell for an inspection terminal, comprising a shell body, a buffer layer, and a heat dissipation module. The shell body contains a chamber for accommodating the inspection terminal and the heat dissipation module. The buffer layer covers the outer side of the shell body. The heat dissipation module includes a semiconductor cooling unit and an airflow circulation unit. The semiconductor cooling unit divides the chamber into an independent equipment mounting cavity and a heat exchange cavity. The cold end face of the semiconductor cooling unit faces the equipment mounting cavity for thermal contact with the heat source area of ​​the inspection terminal housed within the equipment mounting cavity. The hot end face of the semiconductor cooling unit faces the heat exchange cavity and is connected to a heat dissipation fin assembly. The airflow circulation unit is located within the heat exchange cavity and drives airflow through the heat dissipation fin assembly. The shell body has an air inlet channel and an air outlet channel communicating with the heat exchange cavity. Both the air inlet and outlet channels are equipped with filters to block external contaminants.

[0006] Furthermore, the semiconductor cooling unit includes a cold-end conductive plate, a semiconductor cooling chip, and a hot-end conductive plate stacked sequentially; the cold-end conductive plate forms a cold end surface, and the hot-end conductive plate forms a hot end surface and is connected to the heat dissipation fin assembly.

[0007] Furthermore, the inner wall of the equipment installation cavity is equipped with a clamping component that presses the inspection terminal against the cold end conduction plate.

[0008] Furthermore, the buffer layer has a thickened buffer section formed in the corner area of ​​the outer shell body, and a hollow buffer air cavity is formed in the thickened buffer section.

[0009] Furthermore, a transparent protective plate is embedded in the area of ​​the outer shell corresponding to the inspection terminal display screen, and the transparent protective plate and the outer shell are sealed together by a first sealing element.

[0010] Furthermore, the outer shell body has a scanning window in the area corresponding to the inspection terminal scanning module, and a closable protective cover is provided at the scanning window. When the protective cover is closed, it forms a seal with the periphery of the scanning window through a second sealing element.

[0011] Furthermore, the outer shell body is equipped with a removable battery compartment cover in the area corresponding to the battery compartment of the inspection terminal, and the battery compartment cover is connected to the outer shell body by a quick-lock mechanism.

[0012] Furthermore, the filter element is a hydrophobic and breathable membrane or an airflow channel element with a labyrinth structure.

[0013] Furthermore, the outer surface of the main body of the outer shell is provided with anti-slip parts, and the anti-slip parts are distributed with textures to increase friction.

[0014] A protective structure for an inspection terminal, using the protective shell of this utility model.

[0015] In the above technical solution, the protective structure and protective shell of the inspection terminal provided by this utility model have the following beneficial effects: 1. The chamber is divided into an independent equipment installation chamber and a heat exchange chamber by a semiconductor cooling unit. The equipment installation chamber is designed to be closed, which can effectively prevent dust and moisture from entering and protect the internal components of the inspection terminal from the corrosion of harsh environments. At the same time, the cold end of the semiconductor cooling unit is in direct thermal contact with the heat source area of ​​the terminal, and the hot end is in rapid heat dissipation through the heat dissipation fins and airflow circulation unit. The air inlet and outlet channels of the heat exchange chamber are also equipped with filters, which can achieve efficient airflow circulation and heat dissipation and prevent external pollutants from entering the heat exchange chamber.

[0016] 2. The buffer layer is designed with thickened buffer sections at the corners of the main body of the shell, forming a hollow buffer air cavity. Compared with the traditional method of simply adding a buffer pad, it can more efficiently absorb the impact of drops, bumps, and vibrations, greatly reducing the transmission of impact energy to the main body of the shell and the internal inspection terminal, and reducing the probability of electronic components being damaged by impact. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments will be briefly described below.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view structural diagram of the present invention; Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure of section AA; The attached diagram shows the following components: 1. Main body of the outer casing; 111. Equipment mounting cavity; 1111. Clamping component; 112. Heat exchange cavity; 12. Air inlet channel; 13. Air outlet channel; 14. Scanning window; 15. Battery compartment; 16. Anti-slip part; 161. Texture; 2. Buffer layer; 21. Thickened buffer part; 3. Heat dissipation module; 31. Semiconductor cooling unit; 311. Cold end face; 312. Hot end face; 313. Cold end conduction plate; 314. Semiconductor cooling chip; 315. Hot end conduction plate; 32. Airflow circulation unit; 33. Heat dissipation fin assembly; 4. Filter; 5. Transparent protective plate; 6. First sealing component; 7. Protective cover; 8. Second sealing component; 9. Battery compartment cover; 10. Quick lock component. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0020] Reference Figure 1 , Figure 2 and Figure 3As shown, a protective shell for an inspection terminal according to an embodiment of this utility model includes a shell body 1, a buffer layer 2, and a heat dissipation module 3. The shell body 1, serving as the supporting frame for the entire protective shell, can be made of high-strength engineering plastic or lightweight alloy. The shell body 1 has an internal cavity for accommodating the inspection terminal and the heat dissipation module 3. The size of the cavity is adapted to the shape of the inspection terminal to ensure that the inspection terminal is stably placed within it without shaking, preventing damage from collisions between the terminal and the inner wall of the shell caused by internal shaking. The buffer layer 2 completely covers the outside of the shell body 1 and can be made of highly elastic silicone, polyurethane, or EVA. The material, through its elastic deformation, can absorb the impact energy generated by drops and bumps, weakening the effect of external forces on the internal terminals and reducing the risk of damage to electronic components. The heat dissipation module 3 includes a semiconductor cooling unit 31 and an airflow circulation unit 32. The semiconductor cooling unit 31 divides the chamber into an independent equipment mounting cavity 111 and a heat exchange cavity 112. This separation design avoids direct contact between the heat exchange airflow and the inspection terminal, ensuring the airtightness of the equipment mounting cavity 111 while dissipating heat and preventing dust and moisture intrusion. The semiconductor cooling unit 31 is used for active cooling. Its cold end face 311 faces the equipment mounting cavity 111 and is in close thermal contact with the heat source area of ​​the inspection terminal for rapid heat conduction. Its hot end face 312 faces the heat exchange cavity 112 and is connected to multiple The heat dissipation fin assembly 33, composed of parallel aluminum alloy, copper, or copper-aluminum alloy fins, disperses heat by increasing the heat dissipation area. The airflow circulation unit 32 is located in the heat exchange chamber 112 and can be an axial fan or a centrifugal fan to drive airflow through the heat dissipation fin assembly 33 to remove heat. The outer shell 1 has an air inlet channel 12 and an air outlet channel 13 that communicate with the heat exchange chamber 112. Each channel is equipped with a filter 4. The filter 4 can be a hydrophobic and breathable membrane that uses nano-sized micropores to allow air to pass through while blocking water vapor and dust, or a labyrinth structure airflow channel that uses inertia to block contaminants through a tortuous channel, eliminating the need for frequent replacement. Both types of filters can block contaminants while ensuring airflow, ensuring the long-term stable operation of the heat dissipation module 3.

[0021] Specifically, the semiconductor cooling unit 31 includes a cold-end conductive plate 313, a semiconductor cooling chip 314, and a hot-end conductive plate 315 stacked sequentially. The cold-end conductive plate 313 and the hot-end conductive plate 315 are made of materials with high thermal conductivity, such as pure copper plates, aluminum alloy plates, or copper-aluminum alloy composite plates, and their surfaces are polished to reduce the contact gap. The semiconductor cooling chip 314 is sandwiched between the two conductive plates, and its upper and lower surfaces can be tightly bonded with thermally conductive grease or thermally conductive adhesive to eliminate air gaps and avoid increasing thermal resistance. The cold-end conductive plate 313 is located away from the semiconductor cooling chip. One side of the thermoelectric cooler 314 forms a cold end face 311, ensuring full contact with the heat source area of ​​the inspection terminal. The side of the hot end conduction plate 315 away from the thermoelectric cooler 314 forms a hot end face 312. The heat dissipation fin assembly 33 can be connected to it by welding, screw fixing or thermal adhesive. This stacked structure achieves uniform heat transfer through the conduction plate, which can avoid local overheating or uneven heat conduction caused by direct contact with the thermoelectric cooler 314, while protecting the fragile thermoelectric cooler 314 from external impact, improving cooling efficiency and structural reliability.

[0022] Since the inspection terminal may not be able to make close contact with the cold end conduction plate 313 due to assembly gaps after being installed in the equipment mounting cavity 111, in order to eliminate this gap and ensure the heat conduction effect, a clamping member 1111 is provided on the inner wall of the equipment mounting cavity 111 to press the inspection terminal against the cold end conduction plate 313. The clamping member 1111 can be in the form of elastic clamping, using elastic force to push the terminal against the cold end conduction plate 313, ensuring that heat is efficiently conducted through the solid, avoiding the increase in thermal resistance caused by air gaps, and ensuring the cooling efficiency of the semiconductor cooling unit 31.

[0023] Considering that the corners of the inspection terminal are most prone to drops and bumps, and the impact force is easily concentrated and transmitted to the internal components, the buffer layer 2 forms a thickened buffer part 21 in the corner area of ​​the outer shell 1, and a hollow buffer air cavity is formed inside the thickened buffer part 21; the shape of the buffer air cavity can be circular, elliptical, or polygonal, and the material can be closed-cell foam silicone or rubber; when the corner is impacted, the thickened material can absorb energy through elastic deformation, and the compression of the buffer air cavity generates a reaction force to further buffer and protect the corner of the terminal.

[0024] To balance convenience and protection of the inspection terminal, a transparent protective plate 5 is embedded in the area of ​​the main body 1 corresponding to the display screen of the inspection terminal. It can be made of high light transmittance, scratch resistance, and impact resistance materials, such as tempered glass or PC board, to balance strength and viewing effect. The transparent protective plate 5 and the main body 1 are sealed together by a first sealing element 6. The first sealing element 6 can be made of nitrile rubber, fluororubber or silicone, and has a cross-sectional shape of circular, rectangular or U-shaped to block dust and moisture.

[0025] The outer shell 1 has a scanning window 14 in the area corresponding to the scanning module of the inspection terminal, and a protective cover 7 that can be opened and closed is provided at the scanning window 14. The opening method can be a flip cover or a sliding cover. When the protective cover 7 is closed, it forms a seal with the periphery of the scanning window 14 through the second sealing member 8. The second sealing member 8 is made of the same material as the first sealing member, and fills the gap through elastic deformation when closed. When the scanning module is not in use, the protective cover 7 can be closed to prevent contamination, and opening it when in use does not affect scanning.

[0026] Most inspection terminals use replaceable batteries for power. To facilitate quick battery replacement on-site and ensure the battery compartment is sealed, the outer shell 1 has a removable battery compartment cover 9 in the area corresponding to the battery compartment 15 of the inspection terminal. The battery compartment cover 9 is connected to the outer shell 1 via a quick-locking component 10. The quick-locking component 10 can be a snap-on, knob, or press-type structure. The contact surface is equipped with a sealing strip to prevent dust and moisture from entering and to avoid short circuits or poor contact of the battery due to moisture. The quick-locking component 10 allows for quick installation and removal of batteries, improving on-site work efficiency while ensuring the protective performance of the battery compartment.

[0027] The inspection terminal protective case needs to be used by hand. To reduce slippage, the outer surface of the main body 1 of the case is provided with an anti-slip part 16, which is achieved by coating with rubber / silicone or frosting. The anti-slip part 16 is also distributed with textures 161 to increase friction. The textures 161 can be striped, grid-like, or dotted to further improve the anti-slip effect.

[0028] Based on the aforementioned protective shell, this utility model also provides a protective structure for an inspection terminal, which uses the aforementioned protective shell to provide overall protection for the inspection terminal. During assembly, the inspection terminal is installed into the equipment mounting cavity 111, and the heat source area is brought into contact with the cold end face 311 of the semiconductor cooling unit 31 by the clamping member 1111. The buffer layer 2 covers the shell, the transparent protective plate 5 corresponds to the display screen, the protective cover 7 covers the scanning window 14, the battery compartment cover 9 is locked by the quick-lock member 10, and the air inlet channel 12 and the air outlet channel 13 are equipped with filters 4. This protective structure can take into account sealing, dust and moisture prevention, efficient heat dissipation and impact protection, improve the operational stability and life of the inspection terminal, and reduce maintenance costs.

[0029] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A protective casing for an inspection terminal, characterized in that, The device includes a main body (1), a buffer layer (2), and a heat dissipation module (3). The main body (1) has a chamber for accommodating the inspection terminal and the heat dissipation module (3). The buffer layer (2) covers the outside of the main body (1). The heat dissipation module (3) includes a semiconductor cooling unit (31) and an airflow circulation unit (32). The semiconductor cooling unit (31) divides the chamber into an independent equipment mounting cavity (111) and a heat exchange cavity (112). The cold end face (311) of the semiconductor cooling unit (31) faces the equipment mounting cavity (111) and is used to connect with the equipment mounted therein. The heat source area of ​​the inspection terminal in the installation cavity (111) is in thermal contact; the hot end face (312) of the semiconductor cooling unit (31) faces the heat exchange cavity (112) and is connected to the heat dissipation fin group (33); the airflow circulation unit (32) is set in the heat exchange cavity (112) and is used to drive the airflow through the heat dissipation fin group (33); the outer shell body (1) is provided with an air inlet channel (12) and an air outlet channel (13) communicating with the heat exchange cavity (112), and both the air inlet channel (12) and the air outlet channel (13) are provided with filters (4) to block external pollutants from passing through.

2. The protective casing of the inspection terminal as described in claim 1, characterized in that, The semiconductor cooling unit (31) includes a cold end conductive plate (313), a semiconductor cooling chip (314), and a hot end conductive plate (315) stacked in sequence; the cold end conductive plate (313) forms the cold end surface (311), the hot end conductive plate (315) forms the hot end surface (312) and is connected to the heat dissipation fin group (33).

3. The protective casing of the inspection terminal as described in claim 2, characterized in that, The inner wall of the equipment mounting cavity (111) is provided with a clamping member (1111) that presses the inspection terminal against the cold end conduction plate (313).

4. The protective casing of the inspection terminal as described in claim 1, characterized in that, The buffer layer (2) has a thickened buffer portion (21) formed in the corner area of ​​the outer shell body (1), and a hollow buffer air cavity is formed in the thickened buffer portion (21).

5. The protective casing of the inspection terminal as described in claim 1, characterized in that, The outer shell body (1) is fitted with a transparent protective plate (5) in the area corresponding to the inspection terminal display screen. The transparent protective plate (5) and the outer shell body (1) are sealed together by a first sealing element (6).

6. The protective casing of the inspection terminal as described in claim 1, characterized in that, The outer shell body (1) has a scanning window (14) in the area corresponding to the inspection terminal scanning module. A protective cover (7) that can be opened and closed is provided at the scanning window (14). When the protective cover (7) is closed, it forms a seal with the periphery of the scanning window (14) through the second sealing member (8).

7. The protective casing of the inspection terminal as described in claim 1, characterized in that, The outer shell body (1) is provided with a detachable battery compartment cover (9) in the area corresponding to the battery compartment (15) of the inspection terminal. The battery compartment cover (9) is connected to the outer shell body (1) by a quick-locking component (10).

8. The protective casing of the inspection terminal as described in claim 1, characterized in that, The filter element (4) is a hydrophobic and breathable membrane or an airflow channel element with a labyrinth structure.

9. The protective casing of the inspection terminal as described in claim 1, characterized in that, The outer surface of the outer shell body (1) is provided with an anti-slip part (16), and the anti-slip part (16) is provided with a texture (161) to increase friction.

10. A protective structure for an inspection terminal, characterized in that, The protective casing described in any one of claims 1-9 is used.

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