CN217825654U - Explosion-proof information terminal of type of restricting breathing - Google Patents

Abstract

The utility model provides an explosion-proof information-based terminal of restriction breathing type, its terminal casing includes sealing connection's procapsid in proper order, middle casing and back lid, touch-sensitive screen subassembly seal installation is in the screen window portion of procapsid, still include middle heat transfer cover that the chamber was acceptd to the backward concave screen that forms in the middle of the centre, the preceding blank pressing of middle casing and/or preceding blank pressing sealing connection of procapsid and middle heat transfer cover, the rear portion of touch-sensitive screen subassembly stretches into the screen backward and accepts the intracavity, form the mainboard chamber between back lid and the middle heat transfer cover, the control mainboard sets up in the mainboard intracavity and fixes on middle heat transfer cover. Inclosed inner chamber between procapsid and the back lid separates into the screen through middle heat transfer cover and accepts chamber and mainboard chamber, and it is inside to restrict external hazardous gas and carry out the cavity, can prevent again that having in the cavity spark component can not light outside explosive gas, and middle heat transfer cover is located the inside heated area that has increased in terminal, and the abundant is heated, and inside heat is through middle heat transfer cover from interior to exterior effective transmission, still plays effective radiating effect under airtight environment.

Description

Explosion-proof information terminal of type of restricting breathing

Technical Field

The utility model relates to an explosion-proof information-based terminal of type is breathed in restriction.

Background

In the current society, internet technology, big data analysis, cloud computing, internet of things technology and the like gradually go deep into various industries, and the management operation mode of the traditional industry is deeply changed. Safety is always the first criterion in the explosion-proof field, and in order to meet the requirements of multi-industry cross modern production operation in multiple technical fields today, various explosion-proof information terminals have extremely high use value and practical significance in the current industrial production, and the requirements of safety and explosion prevention need to be met so as to ensure personnel safety and environmental safety, and as an explosion-proof electronic product, the explosion-proof information terminal also needs to meet excellent heat dissipation performance and ensure the service life.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an explosion-proof information-based terminal of restriction breathing type.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an explosion-proof information-based terminal of restriction breathing type, includes the terminal casing, still including set up in touch-sensitive screen subassembly, control mainboard in the terminal casing, the terminal casing includes sealing connection's procapsid, middle casing and back lid in proper order, touch-sensitive screen subassembly seal install in the screen window portion of procapsid still includes middle heat transfer cover that the chamber was acceptd to the backward concave formation screen in the middle of, the preceding blank pressing of middle casing and/or the procapsid with the preceding blank pressing of middle heat transfer cover is connected, the rear portion of touch-sensitive screen subassembly stretches into backward the intracavity is acceptd to the screen, back lid with form the mainboard chamber between the middle heat transfer cover, the control mainboard set up in the mainboard intracavity is fixed on the middle heat transfer cover.

In certain embodiments, the intermediate heat transfer jacket is made of a highly conductive material.

In some embodiments, the control main board has a front surface on which at least one electronic component is mounted, and a chip is mounted on a back surface of the control main board, and the chip is directly arranged on the intermediate heat transfer cover in contact with the control main board or arranged on the intermediate heat transfer cover in contact with the control main board through a high heat conduction cushion block and/or a heat conduction silicone layer.

In some embodiments, the front pressing edge of the middle shell and the rear side surface of the front shell are connected by screws in a fastening manner after a sealant layer is coated between the front pressing edge of the middle shell and the rear side surface of the front shell, and a circle of front sealing ring is clamped between the front pressing edge of the middle shell and the rear side surface of the front shell.

In some embodiments, the front pressing edge of the middle heat transfer cover and the rear side surface of the front housing are connected by screw fastening after a sealant layer is coated between the front pressing edge of the middle heat transfer cover and the rear side surface of the front housing, and the front pressing edge of the middle heat transfer cover is pressed on the edge portion of the touch screen assembly.

In some embodiments, the rear portion of the intermediate case includes an intermediate rear ring platform formed by bending and extending transversely to the center, and an intermediate rear ring orifice formed by extending the intermediate rear ring platform rearwardly, the rear cover and the intermediate rear ring platform are connected by a screw, and a ring of rear sealing ring is tightly pressed between the rear cover and the intermediate rear ring orifice.

In some embodiments, the intermediate housing is provided with an explosion-proof sealed joint for leading in power, control or signal lines.

In some embodiments, a step groove has been seted up to the screen window portion inboard of procapsid, the touch-sensitive screen subassembly is including being located from the past to back encapsulation in proper order touch-sensitive screen and the explosion-proof toughened glass in the step groove, still including set up in explosion-proof toughened glass rear side and fixed set up in the liquid crystal display of intracavity is acceptd to the screen, the preceding blank pressing pressure of middle heat transfer cover is located on the explosion-proof toughened glass.

The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.

Because of the application of the technical scheme, compared with the prior art, the utility model has the advantages of it is following: the utility model provides an explosion-proof information terminal of restriction breathing type, inclosed inner chamber between procapsid and the back lid, it accepts chamber and mainboard chamber to separate into the screen through middle heat transfer cover, the restriction external hazardous gas carries on inside the cavity, prevent in the cavity have the spark component can not light under the prerequisite of outside explosive gas, middle heat transfer cover is located the inside heating area that has increased in terminal, fully be heated, the heat that chamber and mainboard intracavity were acceptd to the screen is through middle heat transfer cover from interior to exterior effective transmission, still play effective radiating effect under airtight environment, realize the rapid cooling of whole terminal casing.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view taken along the line K-K of FIG. 1;

fig. 3 is a rear view of the disassembled cover body of the present invention;

wherein: 1. a front housing; 2. a middle housing; 2a, a main board cavity; 3. a rear cover body; 4. a touch screen assembly; 41. a touch screen; 42. explosion-proof toughened glass; 43. a liquid crystal display screen; 5. a control main board; 51. a chip; 52. a high thermal conductivity cushion block; 6. an explosion-proof sealed joint; 7. an intermediate heat transfer housing; 7a and a screen accommodating cavity.

Detailed Description

As shown in the figures, the explosion-proof informatization terminal capable of limiting respiration comprises a terminal shell, and further comprises a touch screen assembly 4 and a control main board 5 which are hermetically arranged in the terminal shell.

As shown in fig. 2, the terminal housing sequentially includes a front housing 1, a middle housing 2 and a rear cover 3, which are hermetically connected, the touch screen assembly 4 is hermetically mounted in a screen window portion of the front housing 1, and a hollow sealing body is formed between the front housing 1 and the rear cover 3 of the terminal.

As shown in fig. 2, the heat-shielding heat-transferring shield also comprises an intermediate heat-transferring shield 7 with a shield-receiving cavity 7a formed by a backward recess in the middle, wherein the intermediate heat-transferring shield 7 is a whole made of a high-conductivity material plate by a bending forming process. The front pressing edge of the middle heat transfer cover 7 is also hermetically connected with the front shell 1, and a main plate cavity 2a is formed between the rear cover body 3 and the middle heat transfer cover 7.

That is, the intermediate heat transfer cover 7 partitions a sealed inner cavity between the front case 1 and the rear cover 3 into a shield accommodating chamber 7a and a main board chamber 2a. The rear part of the touch screen component 4 extends backwards into the screen accommodating cavity 7a, and the control main board 5 is arranged in the main board cavity 2a and fixed on the middle heat transfer cover 7. Thereby because of the inside heated area that has increased of middle heat transfer cover 7 position in the terminal, fully be heated, the heat in the chamber 7a is acceptd to the screen and mainboard chamber 2a is effectively transmitted by interior and exterior through middle heat transfer cover 7, still plays effective radiating effect under inside airtight environment, realizes the rapid cooling of whole terminal casing.

The detailed connections are as follows:

the rear cover body 3 is connected with the rear part of the middle shell body 2 in a sealing way.

The rear part of the middle case 2 comprises a middle rear ring platform formed by transversely bending and extending towards the center and a middle rear ring opening formed by extending the middle rear ring platform backwards, the rear cover body 3 is connected with the middle rear ring platform through screws, and a circle of rear sealing ring is tightly pressed between the rear cover body 3 and the middle rear ring opening. As shown in fig. 2 and 3, the control main board 5 is disposed in the main board chamber 2a and fixed to the intermediate heat transfer cover 7. The control mainboard 5 is provided with a front surface for installing electronic elements such as capacitors and the like, the chip 51 is installed on the back surface of the control mainboard 5, and the middle of the high heat conduction cushion block 52 is coated with a heat conduction silicone grease layer to be contacted and arranged on the middle heat transfer cover 7, so that the effect of effective heat transfer is achieved.

The front shell 1 is connected with the front part of the middle shell 2 in a sealing way.

After a sealing glue layer is coated between the front pressing edge of the middle shell 2 and the back side surface of the front shell 1, the front pressing edge of the middle shell 2 and the back side surface of the front shell 1 are in fastening connection through screws, and a circle of front sealing ring is clamped between the front pressing edge of the middle shell 2 and the back side surface of the front shell 1. The front pressing edge of the middle heat transfer cover 7 is also connected with the back side surface of the front shell 1 in a screw fastening mode after a sealant layer is coated between the front pressing edge and the back side surface.

The touch panel assembly 4 is hermetically mounted to the screen window portion of the front case 1 and extends rearward into the receiving cavity 7 a. The step groove has been seted up to the screen window portion inboard of procapsid 1, and touch-sensitive screen subassembly 4 is including being located 41 and the explosion-proof toughened glass 42 of encapsulation in the step groove in proper order after to in the past, still including setting up in explosion-proof toughened glass 42 rear side and being located the screen and accepting the liquid crystal display 43 in chamber 7a, and the preceding blank pressing of middle heat transfer cover 7 is located on explosion-proof toughened glass 42.

The middle shell 2 is provided with an explosion-proof sealing joint 6 for leading in power lines, control lines and signal lines.

Terminal casing, touch-sensitive screen subassembly 4, sealing connection between each part constitutes the restriction breathing type, and the leakproofness is good. The middle heat transfer cover 7 is arranged between the main board cavity and the screen accommodating cavity in an isolated mode, heat in the cavity, such as heat generated by the chip 51 and heat generated by the liquid crystal display screen 43, is transferred from inside to outside through the middle heat transfer cover 7 with high heat conduction, and the whole terminal shell is cooled quickly and effectively.

The above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which should not be construed as limiting the scope of the present invention. All modifications made according to the spirit of the main technical solutions of the present invention should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides an explosion-proof information-based terminal of type is breathed in restriction, includes terminal housing, still including set up in touch-sensitive screen subassembly (4), control mainboard (5) in the terminal housing, its characterized in that: terminal housing includes sealing connection's procapsid (1), middle casing (2) and back lid (3) in proper order, touch-sensitive screen subassembly (4) seal installation in the screen window portion of procapsid (1), still include middle heat transfer cover (7) that the screen was acceptd to the backward concave formation screen in the middle of, the preceding blank pressing of middle casing (2) and/or procapsid (1) with the preceding blank pressing of middle heat transfer cover (7) is connected, the rear portion of touch-sensitive screen subassembly (4) stretches into backward in the screen is acceptd in chamber (7 a), back lid (3) with form mainboard chamber (2 a) between middle heat transfer cover (7), control mainboard (5) set up in mainboard chamber (2 a) and fix on middle heat transfer cover (7).

2. The explosion-proof informationized terminal of limited breathing type according to claim 1, wherein: the intermediate heat transfer jacket (7) is made of a highly conductive material.

3. The explosion-proof informationized terminal of limited breathing type according to claim 2, wherein: the control mainboard (5) is provided with a front surface for mounting at least one electronic element, a chip (51) is mounted on the back surface of the control mainboard (5), and the chip (51) is directly arranged on the intermediate heat transfer cover (7) in a contact manner or arranged on the intermediate heat transfer cover (7) in a contact manner through a high heat conduction cushion block (52) and/or a heat conduction silicone grease layer.

4. The explosion-proof informationized terminal of limited breathing type according to claim 1, wherein: the front edge pressing device is characterized in that a sealing glue layer is coated between the front edge pressing of the middle shell (2) and the rear side face of the front shell (1) and then the front edge pressing of the middle shell (2) and the rear side face of the front shell (1) are fixedly connected through screws, and a circle of front sealing ring is clamped between the front edge pressing of the middle shell (2) and the rear side face of the front shell (1).

5. The explosion-proof informationized terminal of limited breathing type according to claim 4, wherein: the front pressing edge of the middle heat transfer cover (7) is connected with the rear side face of the front shell (1) in a screw fastening mode after a sealing glue layer is coated between the front pressing edge and the rear side face of the front shell, and the front pressing edge of the middle heat transfer cover (7) is pressed on the edge portion of the touch screen assembly (4).

6. The explosion-proof informationized terminal of limited breathing type according to claim 1, wherein: the rear portion of the middle shell (2) comprises a middle rear ring platform formed by transversely bending and extending towards the center and a middle rear ring opening formed by extending the middle rear ring platform backwards, the rear cover body (3) is connected with the middle rear ring platform through screws, and a circle of rear sealing ring is pressed and arranged between the rear cover body (3) and the middle rear ring opening.

7. The explosion-proof informationized terminal of limited breathing type according to claim 1, wherein: and the middle shell (2) is provided with an explosion-proof sealing joint (6) for leading in a power line, a control line or a signal line.

8. The explosion-proof informationized terminal of limited breathing type according to claim 1, wherein: the step groove has been seted up to the screen window portion inboard of procapsid (1), touch-sensitive screen subassembly (4) are including being located encapsulation in proper order after to in the past touch-sensitive screen (41) and explosion-proof toughened glass (42) of step inslot, still including set up in explosion-proof toughened glass (42) rear side and fixed set up in liquid crystal display (43) in chamber (7 a) are acceptd to the screen, the preceding blank pressing of middle heat transfer cover (7) is pressed and is located on explosion-proof toughened glass (42).

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