Industrial tablet computer

Abstract

The invention relates to the technical field of electronic equipment, and discloses an industrial tablet personal computer which comprises a computer body and a handle, and the handle is in signal connection with the computer body through a cable. The handle comprises a handle, a mouth bearing and a lug bearing, a mouth bearing limiting protrusion is arranged on the outer periphery of the side, away from the handle, of the mouth bearing, and a lug bearing limiting protrusion is arranged on the outer periphery of the side, away from the handle, of the lug bearing; the computer main body comprises a front panel, a mouth bearing limiting piece and a lug bearing limiting piece are arranged on the front panel, a mouth bearing limiting groove with an upward notch is formed between the mouth bearing limiting piece and the front panel, and a lug bearing limiting groove with an upward notch is formed between the lug bearing limiting piece and the front panel; the mouth bearing limiting groove is used for enabling the mouth bearing limiting protrusion to be clamped downwards, and the ear bearing limiting groove is used for enabling the ear bearing limiting protrusion to be clamped downwards, so that the telephone handle is hung on the front panel. By means of the mode, on the basis that the conversation quality of the tablet personal computer is improved through the handle, it can be guaranteed that the handle is stably connected to the computer body in the extremely harsh environment.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an industrial tablet computer. Background Art

[0002] With the development of science and technology, industrial tablet computers have become essential equipment in many production operation scenarios. In extremely harsh environments such as military, shipborne, vehicle-mounted, aerospace, etc., in addition to requiring tablet computers to realize corresponding control and communication functions, they are also required to have good call quality.

[0003] Existing industrial tablet computers realize the calling function through the speakers and microphones configured inside the computer body. In the extreme scenarios mentioned above, there is generally a lot of noise, which will interfere with the microphone's sound reception and the user's listening effect through the speaker, thereby affecting the call quality.

[0004] Based on this, how to better ensure the call quality of the computer has become an urgent problem that needs to be solved by industrial tablets. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides an industrial tablet computer with a handle, which, on the basis of improving the call quality of the tablet computer through the handle, can also ensure the stable connection of the handle to the computer body in extremely harsh environments.

[0006] According to one aspect of an embodiment of the present application, an industrial tablet computer is provided, comprising: a computer body and a handset, the computer body being wall-mounted on a carrier, the handset being connected to the computer body via a cable signal; the handset comprising a handle, a mouthpiece and an earpiece, the mouthpiece and the earpiece being respectively arranged at two ends of the same side of the handle, a mouthpiece limiting protrusion being arranged on the outer periphery of the mouthpiece on a side away from the handle, and an earpiece limiting protrusion being arranged on the outer periphery of the earpiece on a side away from the handle; the computer body comprising a front panel, a mouthpiece limiting member and an earpiece limiting member being arranged on the front panel, a mouthpiece limiting groove with a notch upwardly formed between the mouthpiece limiting member and the front panel, and an earpiece limiting groove with a notch upwardly formed between the earpiece limiting member and the front panel; the mouthpiece limiting groove is used for the mouthpiece limiting protrusion to be snapped downwardly, and the earpiece limiting groove is used for the earpiece limiting protrusion to be snapped downwardly, so that the handset is mounted on the front panel.

[0007] In an optional manner, a first flexible pad layer is provided on the inner wall of the groove facing the front panel on the mouth bearing limit piece and the ear bearing limit piece; a second flexible pad layer is provided on the side of the mouth bearing limit protrusion and the ear bearing limit protrusion facing away from the handle; the mouth bearing limit protrusion and the ear bearing limit protrusion are used to respectively clamp downward into the mouth bearing limit groove and the ear bearing limit groove, and the first flexible pad layer is clamped between the mouth bearing limit protrusion and the inner wall of the groove of the mouth bearing limit piece and between the ear bearing limit protrusion and the inner wall of the groove of the ear bearing limit piece to form an interference fit, and the second flexible pad layer is clamped between the mouth bearing limit protrusion and the front panel and between the ear bearing limit protrusion and the front panel to form an interference fit.

[0008] In an optional manner, after the mouth bearing limiting protrusion and the ear bearing limiting protrusion are respectively snapped downward into the mouth bearing limiting groove and the ear bearing limiting groove, there is a gap between the mouth bearing limiting protrusion and the bottom wall of the mouth bearing limiting groove, and between the ear bearing limiting protrusion and the bottom wall of the ear bearing limiting groove.

[0009] In an optional manner, the mouth bearing limiter includes a first base, a first flexible gasket and a first pressure block, the first base is arranged on the front panel and protrudes from the surface of the front panel, the first flexible gasket is arranged on the side of the first base facing away from the front panel, and the first pressure block is crimped to the side of the first flexible gasket facing away from the first base; the first flexible gasket and the first pressure block both protrude upward from the first base, so that a mouth bearing limiter groove is formed between the first base, the first pressure block and the front panel, and the part of the first flexible gasket protruding upward from the first base forms a first flexible pad layer on the inner wall of the groove of the mouth bearing limiter; and / or The ear bearing limiter includes a second base, a second flexible gasket and a second pressure block. The second base is arranged on the front panel and protrudes from the surface of the front panel. The second flexible gasket is arranged on the side of the second base facing away from the front panel. The second pressure block is crimped to the side of the second flexible gasket facing away from the second base, and the second pressure block is fixedly connected to the second base; the second flexible gasket and the second pressure block both protrude upward from the second base, so that an ear bearing limiter groove is formed between the base, the second pressure block and the front panel, and the part of the second flexible gasket protruding upward from the second base forms a first flexible pad layer on the inner wall of the groove of the ear bearing limiter.

[0010] In an optional embodiment, the mouth bearing limit member is semi-annular in shape and matches the bottom edge shape of the mouth bearing limit protrusion; the ear bearing limit member includes a first limit portion and a second limit portion that are mirror-symmetrical relative to the vertical mirror plane, and the first limit portion and the second limit portion are respectively matched to the edge shape obliquely downward on both sides of the ear bearing limit protrusion.

[0011] In an optional manner, a first magnetic component is provided on a protrusion on the front panel between the first limit portion and the second limit portion, and a second magnetic component is provided on the handle adjacent to the ear support. The first magnetic component is used to be adsorbed and connected to the second magnetic component when the handle is mounted on the front panel.

[0012] In an optional manner, a plurality of button openings are provided on the front panel; the industrial tablet computer also includes a button assembly, the button assembly includes a button plate and a flexible button cover, the button plate is arranged on the back of the front panel, and a plurality of buttons are arranged on the button plate at a position opposite to the button opening; the back of the flexible button cover is recessed to form a plurality of snap-fit ​​grooves, the back of the flexible button cover is attached to the button plate, and each snap-fit ​​groove covers a button; a pressing block is formed on the front of the flexible button cover at a position opposite to each snap-fit ​​groove, the flexible button cover is clamped between the button plate and the front panel to form an interference fit, and each pressing block extends from a button opening.

[0013] In an optional embodiment, a screen assembly is integrated on the front panel; the computer body also includes a main shell, the front of the main shell has a baffle, the edge of the baffle is raised and encloses a mounting wall, the front panel is connected to the mounting wall, so that the screen assembly is accommodated in a accommodating cavity formed by the mounting wall; a main board is arranged inside the main shell, a wire passing hole is provided on the baffle, the screen assembly and the mainboard are electrically connected by a wire passing through the wire passing hole, and the accommodating cavity is used to accommodate some of the wires.

[0014] In an optional manner, at the edges of the mounting wall and the front panel facing each other, one is provided with an annular sealing groove, and the other is provided with an annular sealing rib, a sealing ring is embedded in the sealing groove, and the sealing rib is used to at least partially insert into the sealing groove and press the sealing ring to form an interference fit.

[0015] In an optional manner, the mainboard is arranged parallel to the baffle, a CPU is arranged on the side of the mainboard facing the baffle, a heat conductive block is protruded on the baffle at a position opposite to the CPU, the heat conductive block is fitted with the CPU, and is used to conduct the heat of the CPU to the baffle.

[0016] In the industrial tablet computer provided in the embodiment of the present application, a handle is first configured on the computer body, so that when the user is talking, the handle can be held to the side of the face to make the microphone closer to the mouth and the speaker closer to the ear, thereby achieving better listening and receiving effects, and ensuring that the industrial tablet computer still has good call quality in a noisy use environment. Further, considering that most industrial tablet computers are in an impact and vibration application environment, in order to make the handle still be firmly connected to the front panel in such an environment, the embodiment of the present application respectively arranges a mouth bearing limiter and an ear bearing limiter on the front panel to form a mouth bearing limiter groove and an ear bearing limiter groove with the notch upward, and at the same time, a mouth bearing limiter protrusion and an ear bearing limiter protrusion are respectively arranged on the outer periphery of the mouth bearing and the ear bearing, so that when the computer body is wall-mounted on the carrier, the handle can be stably and reliably mounted and fixed on the front panel by the mouth bearing limiter protrusion and the ear bearing limiter protrusion respectively clamping the mouth bearing limiter groove and the ear bearing limiter groove downward, ensuring that the handle can still be kept on the front panel without falling off in harsh environments such as impact and vibration.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an industrial tablet computer provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the structure of an industrial tablet computer provided by an embodiment of the present invention after the handle is removed from the computer body;

[0021] Figure 3 A schematic cross-sectional structure diagram of the connection between the handle and the computer body in the industrial tablet computer provided by an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of the industrial tablet computer provided by an embodiment of the present invention when the handle and the computer body are about to be connected;

[0023] Figure 5A schematic diagram of the explosion structure of the mouth bearing limiter and the ear bearing limiter in the industrial tablet computer provided by an embodiment of the present invention;

[0024] Figure 6 A schematic cross-sectional structure diagram of a key assembly on the front panel of an industrial tablet computer provided by an embodiment of the present invention;

[0025] Figure 7 A schematic diagram of an exploded structure of a computer body from one perspective in an industrial tablet computer provided by an embodiment of the present invention;

[0026] Figure 8 A schematic diagram of an exploded structure of a computer body in an industrial tablet computer provided by an embodiment of the present invention from another perspective;

[0027] Fig. 9 A schematic cross-sectional view of the sealed connection between the front panel and the mounting wall of the industrial tablet computer provided by an embodiment of the present invention;

[0028] Fig.10 A schematic diagram of the cross-sectional structure of the industrial tablet computer provided by an embodiment of the present invention at the joint between the CPU and the heat conductive block;

[0029] Fig.11 A schematic diagram of the structure inside the main housing of the industrial tablet computer provided by an embodiment of the present invention;

[0030] Fig.12 A schematic diagram of the circuit structure of an industrial tablet computer provided in an embodiment of the present invention.

[0031] The reference numerals in the specific implementation manner are as follows:

[0032] 100. Industrial tablet computer;

[0033] 110. Computer body;

[0034] 111, front panel; 1111, key port; 1112, sealing groove; 1113, sealing ring;

[0035] 112, mouth bearing limiting member; 1121, mouth bearing limiting groove; 1122, first groove inner wall; 1123, first base; 1124, first flexible gasket; 1125, first pressing block;

[0036] 113, ear bearing limiting member; 1131, ear bearing limiting groove; 1132, second groove inner wall; 1133, second base; 1134, second flexible gasket; 1135, second pressing block; 1136, first limiting portion; 1137, second limiting portion;

[0037] 114. first flexible cushion layer; 115. first magnetic attraction member; 116. screen assembly;

[0038] 117, main housing; 1171, baffle; 11711, wire hole; 11712, heat conducting block; 1172, installation wall; 11721, sealing rib; 1173, accommodating cavity; 1174, partition; 11741, wiring hole; 11751, first installation cavity; 11752, second installation cavity; 1176, installation port; 1177, cover plate;

[0039] 118, motherboard; 1181, CPU; 1182, memory; 1183, hard disk; 1184, sound card; 1185, CPLD; 11851, GPIO interface; 1186, display conversion chip; 1187, USB HUB; 11871, MCU; 11872, camera; 1188, network chip; 11881, network interface A; 11882, network interface B;

[0040] 119, power supply assembly; 1191, power supply board; 1192, power supply filter;

[0041] 120, a handle; 121, a handle; 122, a mouthpiece; 1221, a mouthpiece limiting protrusion; 1222, a microphone; 123, an earpiece; 1231, an earpiece limiting protrusion; 1232, a speaker; 124, a second flexible cushion layer; 125, a second magnetic attraction member;

[0042] 130, cable; 140, key assembly; 141, key board; 1411, button; 142, flexible key cover; 1421, buckle groove; 1422, pressing block;

[0043] 151. Digital key group; 152. Function key group; 160. Hands-free speaker; 170. Hands-free microphone; 181. Power amplifier A; 182. Power amplifier B. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0050] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] In order to improve the call quality of industrial tablet computers in extremely harsh environments, the present application first equips the tablet computer with a handset specifically used for making calls. Similar to a telephone, the mouthpiece on the handset can be in contact with the user's mouth, and the earpiece on the handset can be snapped onto the user's ear to improve the sound reception effect of the microphone at the mouthpiece and the effect of the user listening to the sound from the speaker at the earpiece, thereby ensuring the quality of calls made by users through industrial tablet computers in noisy environments such as military, shipborne, vehicle-borne, aerospace, and machinery factories.

[0053] On the basis of configuring a handle for the industrial tablet computer, considering that after the tablet computer is installed in the above-mentioned extremely harsh application scenarios, the carrier carrying the tablet computer may be a hull, car body, airplane, machine tool and other objects that are subject to impact, bumps and vibration environments, and the fixing method of the handle on a conventional telephone cannot meet these environments at all. Therefore, this application also aims at the wall-mounted installation method of the industrial tablet computer on the corresponding carrier, and has enhanced the stability of the connection and fixation of the handle on the computer body to ensure that the handle can still be stably maintained on the computer body under greater impact and vibration.

[0054] For the overall structure of the industrial tablet computer provided in the embodiment of the present application, please refer to Figure 1 The industrial tablet computer 100 includes a computer body 110 and a handle 120. The computer body 110 is wall-mounted on a carrier (not shown). Specifically, the carrier may be the above-mentioned structures such as the hull, car body, airplane, machine tool, etc. After the computer body 110 is wall-mounted on the carrier, the handle 120 extends vertically as a whole. The handle 120 and the computer body 110 are connected by a cable 130. The cable 130 may be an aviation plug cable, which has the characteristics of reliable and stable connection, and thus can ensure the stability of signal transmission between the handle 120 and the computer body 110. A pluggable connection may be used between the cable 130 and the handle 120 or the computer body 110, so that the handle 120 and the computer body 110 can be completely disassembled and separated. In addition, at least a portion of the cable 130 may also be as follows Figure 1 The spiral winding shown is similar to a telephone line, so that when the user takes down the handset 120 to make a call, it can be stretched and extended, ensuring that the user can still make a call through the handset 120 at a relatively far distance from the computer body 110.

[0055] Please further combine Figure 2, the figure shows the structure of the handset 120 after it is removed from the computer body 110. As shown in the figure, the handset 120 includes a handle 121, a mouthpiece 122 and an earpiece 123. The mouthpiece 122 and the earpiece 123 are respectively arranged at two ends of the same side of the handle 121. The outer periphery of the mouthpiece 122 away from the handle 121 is provided with a mouthpiece limiting protrusion 1221, and the outer periphery of the earpiece 123 away from the handle 121 is provided with an earpiece limiting protrusion 1231. Among them, the mouthpiece 122 is provided with a microphone 1222 to realize the sound reception when the user is talking, and the earpiece 123 is provided with a speaker 1232 to realize the sound listening when the user is talking.

[0056] Please further combine Figure 3 The cross-sectional structure of the connection between the handle 120 and the computer body 110 is shown in the figure. As shown in the figure, the computer body 110 includes a front panel 111, and the front panel 111 is provided with a mouth bearing limiter 112 and an ear bearing limiter 113. A mouth bearing limit groove 1121 with the notch upward is formed between the mouth bearing limiter 112 and the front panel 111, and an ear bearing limit groove 1131 with the notch upward is formed between the ear bearing limiter 113 and the front panel 111.

[0057] Please further combine Figure 4 The structure of the handle 120 when it is about to be connected to the front panel 111 is shown in the figure. It can be seen from the figure that the mouthpiece limit groove 1121 is used for the mouthpiece limit protrusion 1221 to be snapped downward, and the earpiece limit groove 1131 is used for the earpiece limit protrusion 1231 to be snapped downward, that is, along the Figure 3 and Figure 4 The handle 120 is inserted in the direction indicated by the arrow in the middle so that the handle 120 is Figure 1 and Figure 3 The state shown is mounted and fixed on the front panel 111.

[0058] Accordingly, when the user removes the handle 120, the user needs to hold the handle 121 and move the handle 120 upwards. After the mouthpiece limit protrusion 1221 and the earpiece limit protrusion 1231 are completely removed from the mouthpiece limit groove 1121 and the earpiece limit groove 1131 respectively, the handle 120 can be held to the side of the face for conversation.

[0059] The computer body 110 is wall-mounted on a carrier, and the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 are respectively clamped downward into the mouth bearing limiting groove 1121 and the ear bearing limiting groove 1131, so that after the handle 120 is mounted and fixed on the front panel 111, the mouth bearing limiting member 112 and the ear bearing limiting member 113 cooperate to limit the handle 120 in all directions except upward. When the carrier carrying the computer body 110 in a wall-mounted manner is impacted, shaken, bumped or vibrated, without considering the production and assembly tolerances, the handle 120 will only move upward. Since the upward movement requires overcoming the gravity of the handle 120 itself, except for extremely special cases such as severe up and down impact or shaking, in most other impact, shaking or vibration environments, such as the military, shipborne, vehicle-borne, aerospace, machinery factory and other scenes mentioned above, the handle 120 can remain on the front panel 111 and not fall off, thereby ensuring the overall structural stability of the industrial tablet computer 100.

[0060] In summary, in the industrial tablet computer 100 provided in the embodiment of the present application, the handle 120 is first configured on the computer body 110, so that when the user is talking, the handle 120 can be held to the side of the face to make the microphone 1222 closer to the mouth and the speaker 1232 closer to the ear, thereby achieving better listening and receiving effects, ensuring that the industrial tablet computer 100 still has good call quality in a noisy usage environment.

[0061] Furthermore, considering that the industrial tablet computer 100 is mostly in an application environment of impact and vibration, in order to ensure that the handle 120 can still be firmly connected to the front panel 111 in such an environment, the embodiment of the present application respectively arranges a mouth bearing limiter 112 and an ear bearing limiter 113 on the front panel 111, thereby forming a mouth bearing limit groove 1121 and an ear bearing limit groove 1131 with the groove opening upward, and at the same time, a mouth bearing limit protrusion 1221 and an ear bearing limit protrusion 1231 are respectively arranged on the outer periphery of the mouth bearing 122 and the ear bearing 123, so that when the computer body 110 is wall-mounted on the carrier, the handle 120 can be stably and reliably mounted and fixed on the front panel 111 by the mouth bearing limit protrusion 1221 and the ear bearing limit protrusion 1231 respectively snapping downward into the mouth bearing limit groove 1121 and the ear bearing limit groove 1131, thereby ensuring that the handle 120 can still remain on the front panel 111 and does not fall off in harsh environments such as impact and vibration.

[0062] In order to further improve the stability of the mounting of the handle 120, the present application also proposes an implementation method. Figure 3 As shown in FIG, the first flexible cushion layer 114 is disposed on the inner wall of the groove facing the front panel 111 on the mouth bearing limiter 112 and the ear bearing limiter 113 (the first inner wall 1122 and the second inner wall 1132 in the figure). Figure 2 and Figure 3 As shown in , the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 are both provided with a second flexible pad layer 124 on the side away from the handle 121. Among them, the first flexible pad layer 114 and the second flexible pad layer 124 can both be a silicone pad, a soft plastic pad, etc.

[0063] Please continue reading Figure 3 , the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 are used to respectively clamp downward into the mouth bearing limiting groove 1121 and the ear bearing limiting groove 1131, and then the first flexible cushion layer 114 is clamped between the mouth bearing limiting protrusion 1221 and the first groove inner wall 1122 and between the ear bearing limiting protrusion 1231 and the second groove inner wall 1132 to form an interference fit, and the second flexible cushion layer 124 is clamped between the mouth bearing limiting protrusion 1221 and the front panel 111 and between the ear bearing limiting protrusion 1231 and the front panel 111 to form an interference fit. Among them, the interference amount of the above-mentioned interference fit can be 0.2mm, that is, after clamping, the first flexible cushion layer 114 and the second flexible cushion layer 124 are compressed and deformed by 0.2mm. Of course, the interference amount can also be set to other values ​​as needed, which is not limited here.

[0064] Through the above arrangement, after the handle 120 is mounted, the front and rear sides (i.e. Figure 3 The left and right sides under the viewing angle) are respectively pressed tightly by the first flexible pad layer 114 and the second flexible pad layer 124. On the one hand, the friction between the front and rear sides of the mouth bearing limit protrusion 1221 and the ear bearing limit protrusion 1231 can be increased, so that they can withstand stronger impact and vibration and are not easy to shake in the mouth bearing limit groove 1121 and the ear bearing limit groove 1131. On the other hand, it can also prevent damage caused by collision and friction between the mouth bearing limit protrusion 1221 and the front panel 111 and the mouth bearing limit piece 112, and between the ear bearing limit protrusion 1231 and the front panel 111 and the ear bearing limit piece 113 during the placement and removal of the handle 120.

[0065] In order to further reduce the collision between the mouthpiece limiting protrusion 1221 and the inner wall of the mouthpiece limiting groove 1121 and the collision between the earpiece limiting protrusion 1231 and the inner wall of the earpiece limiting groove 1131, as shown in FIG. Figure 3 As shown in FIG. 1 , after the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 are respectively clamped downward into the mouth bearing limiting groove 1121 and the ear bearing limiting groove 1131, a dimension D is provided between the mouth bearing limiting protrusion 1221 and the bottom wall of the mouth bearing limiting groove 1121. 1 The gap between the ear bearing limiting protrusion 1231 and the bottom wall of the ear bearing limiting groove 1131 has a dimension D 2 gap.

[0066] In the present embodiment, by designing the depth dimension of the mouth bearing limit groove 1121 to be greater than the height dimension of the mouth bearing limit protrusion 1221, and designing the depth dimension of the ear bearing limit groove 1131 to be greater than the height dimension of the ear bearing limit protrusion 1231, after the handle 120 is inserted downward, there is a gap between the mouth bearing limit protrusion 1221 and the bottom wall of the mouth bearing limit groove 1121, and between the ear bearing limit protrusion 1231 and the ear bearing limit groove 1131. This gap can ensure that there will be no impact or collision between them, thereby effectively ensuring the structural stability of the mouth bearing limit member 112, the ear bearing limit member 113 and the handle 120. On this basis, combined with the arrangement of the first flexible pad layer 114 and the second flexible pad layer 124 on both sides of the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 after the handle 120 is inserted into the above embodiment, all-round collision protection is achieved around the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231, thereby fully ensuring the stability and reliability of the handle 120 after mounting.

[0067] In order to facilitate the assembly of the mouthpiece limiter 112, the present application further provides a structural design for the mouthpiece limiter 112. Figure 5 , the figure shows the explosion structure at the mouth bearing limiter 112. As shown in the figure, the mouth bearing limiter 112 includes a first base 1123, a first flexible gasket 1124 and a first pressing block 1125. The first base 1123 is arranged on the front panel 111 and protrudes from the surface of the front panel 111. Specifically, the first base 1123 can be integrally formed with the front panel 111, or can be fixedly connected to the front panel 111 by means of threaded fasteners, welding, etc. The first flexible gasket 1124 is arranged on the side of the first base 1123 away from the front panel 111, and the first pressing block 1125 is pressed on the side of the first flexible gasket 1124 away from the first base 1123.

[0068] Specifically, the first pressing block 1125 and the first base 1123 can be made of metal or hard plastic material, and the first flexible gasket 1124 can be made of soft silicone material. After the first pressing block 1125 is pressed onto the first flexible gasket 1124, Figure 5 As shown in the figure, the threaded fastener passes through the first pressing block 1125 and the first flexible gasket 1124 in sequence and is then threadedly connected to the first base 1123 to complete the assembly of the mouth bearing limiter 112. Of course, the first flexible gasket 1124 and the first base 1123, as well as the first pressing block 1125 and the first flexible gasket 1124, can also be assembled by bonding, welding, etc., which is not limited here.

[0069] Please further combine Figure 3The first flexible gasket 1124 and the first pressure block 1125 both protrude upward from the first base 1123, so that the above-mentioned mouth bearing limit groove 1121 is formed between the first base 1123, the first pressure block and the front panel 111, and the part of the first flexible gasket 1124 protruding upward from the first base 1123 forms the first flexible pad layer 114 in the mouth bearing limit groove 1121.

[0070] It should be noted that if the front panel 111 and the mouth bearing limiter 112 are produced in an integrated manner, since the mouth bearing limiter groove 1121 needs to be formed, better requirements will be placed on the production and processing capabilities of the front panel 111, which will undoubtedly lead to an increase in production costs. In this regard, in this embodiment, the mouth bearing limiter 112 is split into a first base 1123 and a first pressing block 1125 that are assembled with each other, and the mouth bearing limiter groove 1121 is formed by the first pressing block 1125 protruding upward from the first base 1123, so that the first base 1123 and the first pressing block 1125 can both be conventional block structures for easy production and processing.

[0071] In addition, considering that when the first flexible pad layer 114 is set on the inner wall of the already formed mouth bearing limit groove 1121, it is difficult to perform the corresponding operation due to the size of the mouth bearing limit groove 1121. In this regard, in this embodiment, the formation of the first flexible pad layer 114 in the mouth bearing limit groove 1121 is placed in the assembly step of the mouth bearing limit member 112. Specifically, when the first pressure block 1125 is assembled on the first base 1123, the first flexible gasket 1124 is clamped between the two, so that the first flexible gasket 1124 is installed and fixed. At the same time, the first flexible gasket 1124 protrudes upward from the first base 1123, so that the part of the first flexible gasket 1124 located in the mouth bearing limit groove 1121 forms the first flexible pad layer 114. Such a setting method not only facilitates the installation operation of the first flexible gasket 1124 and the first pressure block 1125 on the first base 1123, but also can reliably fix the first flexible gasket 1124 to ensure that the first flexible gasket 1124 can be effectively clamped between the mouth bearing limit protrusion 1221 and the first pressure block 1125, thereby providing reinforcement and impact buffering for the mounting of the handle 120.

[0072] Similarly, if Figure 3 and 5 As shown, the ear bearing limiter 113 may include a second base 1133, a second flexible gasket 1134 and a second pressure block 1135, which may be arranged in the same manner as the first base 1123, the first flexible gasket 1124 and the first pressure block 1125, and the details will not be repeated here.

[0073] In order to make the mounting of the handle 120 more convenient and stable, Figure 2As shown in the figure, the mouth bearing limiter 112 may be in a semi-circular shape that matches the bottom edge shape of the mouth bearing limiter protrusion 1221. The ear bearing limiter 113 may include a first limiter 1136 and a second limiter 1137 that are mirror-symmetrical relative to the vertical mirror plane, and the first limiter 1136 and the second limiter 1137 are respectively matched with the shape of the obliquely lower edges on both sides of the ear bearing limiter protrusion 1231. It should be noted here that the "obliquely lower edges on both sides of the ear bearing limiter protrusion 1231" refers to Figure 1 The ear support limiting protrusion 1231 shown in the figure is engaged with the edge portion of the second limiting portion 1137 and the edge portion of the first limiting portion 1136 which is blocked on the other side.

[0074] exist Figure 2 In the specific embodiment shown, the mouthpiece 122 and the earpiece 123 are both circular, and accordingly, the mouthpiece stopper 112 is semicircular, and the first stopper 1136 and the second stopper 1137 of the earpiece stopper 113 are both arc-shaped. It can be understood that the figure is only an embodiment shown in the present application, and it does not constitute a limitation on their specific shapes. For example, in other embodiments, the mouthpiece 122 and the earpiece 123 can also be elliptical, square or other irregular shapes, and the mouthpiece stopper 112 and the earpiece stopper 113 can be designed to be in an adaptive shape.

[0075] from Figure 1 and Figure 2 It can be seen from the figure that compared with the ear bearing limiter 113 and the ear bearing limiter protrusion 1231, the semi-annular mouth bearing limiter 112 and the mouth bearing limiter protrusion 1221 have a larger engagement area, and the semi-annular mouth bearing limiter 112 can be Figure 2 Left and right directions of view and Figure 3 The rightward direction in the viewing angle provides a better limiting effect for the mouthpiece limiting protrusion 1221 , thereby ensuring the stability of the mounting of the handle 120 .

[0076] If the earpiece stopper 113 is also set to a semi-circular shape, then when the handle 120 is mounted, the earpiece stopper protrusion 1231 needs to be accurately aligned with the earpiece stopper 113 and the mouthpiece stopper protrusion 1221 needs to be accurately aligned with the mouthpiece stopper 112 in the vertical direction, otherwise a jam may occur. For example, when the handle 120 is placed downward in a tilted state, it may be respectively aligned with the earpiece stopper 113 and the mouthpiece stopper 112. Figure 2 From the viewing angle, the upper left end of the mouthpiece limiter 112 and the upper right end of the earpiece limiter 113 are pressed against each other, thereby preventing the handle 120 from moving downward, which will undoubtedly affect the user experience.

[0077] Based on the above problems, in the present embodiment, the ear piece limiter 113 is split into a first limiter portion 1136 and a second limiter portion 1137, and two smaller ear piece limiter grooves 1131 on the first limiter portion 1136 and the second limiter portion 1137 are respectively engaged with the obliquely lower edges on both sides of the ear piece limiter protrusion 1231. While the ear piece limiter protrusion 1231 is engaged and fixed, when mounting the handle 120, the user only needs to roughly align the ear piece 123 with the ear piece limiter 113 to easily engage it.

[0078] from Figure 2 It can also be seen that in the specific embodiment shown in the figure, the outer peripheral size of the earpiece 123 is significantly larger than the outer peripheral size of the mouthpiece 122, which is also in line with the principle of the call of the handle 120. Specifically, the earpiece 123 needs to have a large area to ensure that it can basically buckle the user's ear, and the mouthpiece 122 only needs to be able to align with the user's mouth to receive sound. Based on this, the mouthpiece limiter 112 is set to a semi-ring shape, and the earpiece limiter 113 is split into a first limiter 1136 and a second limiter 1137. While the handle 120 can be reliably mounted and fixed, the area they need to occupy on the front panel 111 can be reduced as much as possible, thereby meeting the requirements of product miniaturization.

[0079] Considering that if the earpiece 123 is limited only by the first limiting portion 1136 and the second limiting portion 1137, the earpiece 123 may easily shake when subjected to strong impact or vibration. Figure 2 and Figure 5 As shown in the figure, a first magnetic component 115 can be provided on the front panel 111 at a position between the first limit portion 1136 and the second limit portion 1137, and a second magnetic component 125 is provided on the handle 121 at a position adjacent to the ear piece 123. The first magnetic component 115 is used to be adsorbed and connected with the second magnetic component 125 when the handle 120 is mounted on the front panel 111.

[0080] The position of the handle 121 adjacent to the earpiece 123 is further connected to the front panel 111 through the first magnetic member 115 and the second magnetic member 125, which can not only prevent the earpiece 123 from shaking, but also inhibit the upward movement of the handle 120 to a certain extent, thereby ensuring its mounting stability. Figure 2 and Figure 5 It can also be seen that since the first magnetic component 115 needs to protrude from the front panel 111 in order to be normally magnetically adsorbed to the handle 121, setting the first magnetic component 115 between the first limiting portion 1136 and the second limiting portion 1137 can not only better fix the ear piece 123, but also will not affect the user's ability to extend his fingers into the space below the first magnetic component 115 to grasp the handle 121, thereby ensuring the convenience of the user in taking and placing the handle 120.

[0081] In addition, in order to prevent incorrect adsorption, the shell of the handle 120 and the front panel 111 can be made of aluminum alloy, plastic or other materials without magnetic attraction, so as to avoid incorrect adsorption between the shell of the handle 120 and the first magnetic component 115 or the front panel 111 and the second magnetic component 125, thereby affecting the user experience.

[0082] In order to facilitate the function control of the industrial tablet computer 100, physical buttons can also be set on the front panel 111. For details, please continue to refer to Figure 5 , and further combined with Figure 6 , Figure 6 The cross-sectional structure of the front panel 111 at the key position is shown in FIG. As shown in the figure, a plurality of key openings are provided on the front panel 111. The industrial tablet computer 100 further includes a key assembly 140, which includes a key plate 141 and a flexible key cover 142. The key plate 141 is disposed on the back of the front panel 111 ( Figure 6 The left side of the front panel 111 is shown in the perspective view. A plurality of buttons 1411 are arranged on the keypad 141 at a position opposite to the key opening 1111. The back of the flexible key cover 142 is recessed to form a plurality of snap-fit ​​grooves 1421. The back of the flexible key cover 142 is attached to the keypad 141, and each snap-fit ​​groove 1421 snaps onto a button 1411. A pressing block 1422 is formed at a position opposite to each snap-fit ​​groove 1421 on the front of the flexible key cover 142. The flexible key cover 142 is clamped between the keypad 141 and the front panel 111 to form an interference fit, and each pressing block 1422 extends out from a key opening 1111.

[0083] In this embodiment, the flexible button cover 142 is an integral piece, and its back side ( Figure 6 After the left side of the flexible key cover 142 is attached to the key plate 141 (from the left side in the viewing angle), the multiple snap-fit ​​grooves 1421 on the back are snapped onto the periphery of the button 1411, thereby sealing and protecting the space around the button 1411 and ensuring the structural stability of the button 1411. The flexible key cover 142 is clamped between the key plate 141 and the front panel 111 and forms an interference fit to seal the key opening 1111 and ensure the stability of the internal key plate 141. At the same time, the button 1411 is triggered by the pressing block 1422 that protrudes from the flexible key cover 142 and extends from the button opening 1111. Specifically, the flexible key cover 142 is deformed and released from the button 1411 by pressing the pressing block 1422, thereby triggering the button 1411. In this regard, in order to prevent accidental key touches, such as Figure 6 As shown in FIG. 1 , a distance D may be left between the inner wall of the flexible button cover 142 at the pressing block 1422 and the button 1411. 3The gap between the pressing block 1422 and the pressing block 1422 makes it possible to prevent the button 1411 from being triggered directly when the pressing block 1422 is subjected to a small pressure and is pressed down to a small extent, thereby preventing the button from being accidentally touched.

[0084] Please refer again Figure 1 The front panel 111 may be provided with a numeric keypad group 151 and a function keypad group 152, both of which may adopt the same structure as the keypad assembly 140. Considering that the numeric keypad group 151 is only needed when dialing a number by picking up the handset 120, in order to minimize the area of ​​the front panel 111, as shown in FIG. Figure 1 As shown in the figure, the digital key group 151 can be set on the front panel 111 in the area between the mouth bearing limiter 112 and the ear bearing limiter 113, so as to realize the utilization of the space on the front panel 111 corresponding to the position of the rear handle 121 after mounting, and at the same time, the digital key group 151 can be prevented from being accidentally touched by blocking the digital key group 151 by the handle 121.

[0085] Regarding the assembly of the computer body 110, this application proposes an implementation method. For details, please refer to Figure 7 and Figure 8 , the exploded structure of the computer body 110 is shown from two perspectives. As shown in the figure, the front panel 111 is integrated with a screen assembly 116. The screen assembly 116 can be fixed to the back of the front panel 111 by a double-sided adhesive waterproof foam surface (not shown), and the sealing of the assembly connection between the screen assembly 116 and the front panel 111 is achieved by squeezing the waterproof foam surface.

[0086] The computer body 110 further includes a main housing 117. The front side ( Figure 7 The left side of the main housing 117 (in the left side of the viewing angle) has a baffle 1171, the edge of the baffle 1171 is raised and enclosed to form a mounting wall 1172, and the front panel 111 is connected to the mounting wall 1172, so that the screen assembly 116 is accommodated in the accommodating cavity 1173 enclosed by the mounting wall 1172. The main housing 117 is provided with a main board 118 inside, and a wire hole 11711 is provided on the baffle 1171. The screen assembly 116 and the main board 118 are electrically connected by a wire (not shown) passing through the wire hole 11711, and the accommodating cavity 1173 is used to store part of the wire.

[0087] In this embodiment, the mainboard 118 is separated from the screen assembly 116 by the baffle 1171, and the electrical connection is only made through the wire hole 11711, which can effectively reduce the electromagnetic interference between the mainboard 118 and the screen assembly 116, and improve the stability and reliability of the operation of the industrial tablet computer 100. In addition, it can be understood that the wire connecting the mainboard 118 and the screen assembly 116 is based on a redundant design, and the length is generally greater than the distance between the interfaces, and some redundant wires may be reserved to meet the needs of functional expansion. In order to better accommodate the wires, a mounting wall 1172 is provided on the edge of the baffle 1171, and the mounting wall 1172 is assembled and connected with the front panel 111, so that the accommodating cavity 1173 enclosed by the mounting wall 1172 can accommodate the screen assembly 116, and can also better accommodate redundant wires, ensuring that the internal wiring is reasonable and neat.

[0088] Considering that the industrial tablet computer 100 may need to work reliably in dusty, humid, salt spray and other environments, its sealing is very important. In order to improve the sealing performance of the assembly between the front panel 111 and the mounting wall 1172, the present application further proposes an implementation method. Please continue to refer to Figure 7 and Figure 8 , and further combined with Fig. 9 As shown in the cross-sectional structure, at the edges of the mounting wall 1172 and the front panel 111 facing each other, an annular sealing groove 1112 is provided on the front panel 111, an annular sealing rib 11721 is protruded on the mounting wall 1172, a sealing ring 1113 is embedded in the sealing groove 1112, and the sealing rib 11721 is used to at least partially insert into the sealing groove 1112 and press the sealing ring 1113 to form an interference fit.

[0089] In this embodiment, the annular sealing rib 11721 is inserted into the sealing groove 1112 and the sealing ring 1113 is pressed tightly, which can not only increase the contact area between the front panel 111 and the installation wall 1172, but also make the sealing ring 1113 fit tightly with the sealing rib 11721 and the inner wall of the sealing groove 1112, thereby effectively improving the sealing performance of the assembly gap between the two.

[0090] It is understandable that in some other embodiments, the positions of the sealing groove 1112 and the sealing rib 11721 can also be interchanged, that is, the sealing groove 1112 is arranged on the mounting wall 1172, and the sealing rib 11721 is arranged on the front panel 111. The assembly method and sealing effect are the same and will not be elaborated here.

[0091] In order to ensure the sealing performance, the industrial tablet computer 100 can also be designed as a fanless heat dissipation form. For details, please refer to Fig.10As shown in the cross-sectional structure, CPU1181 can be arranged on the side of the mainboard 118 facing the baffle 1171. A heat-conducting block 11712 is protruded from the baffle 1171 at a position opposite to the CPU1181. The heat-conducting block 11712 is in contact with the CPU1181 and is used to transfer the heat of the CPU to the baffle 1171.

[0092] Specifically, the baffle 1171, the heat conducting block 11712 and the main housing 117 can be made of one-piece aluminum, copper and other metal materials with good heat dissipation performance. Since the CPU 1181 is the main heating element on the motherboard 118, the heat conducting block 11712 can quickly absorb the heat generated by the CPU 1181 by fitting the heat conducting block 11712 with the CPU 1181. Then, the heat conducting block 11712 conducts the heat to the baffle 1171, and then the baffle 1171 and the main housing 117 dissipate the heat to the outside, thereby achieving efficient heat dissipation of the CPU 1181. The heat of other heating elements on the motherboard 118 can be dissipated to the internal space of the main housing 117 and then dissipated through the wall of the main housing 117. Based on this heat dissipation method, combined with the selection of internal electronic components, the industrial tablet computer 100 can meet the wide temperature working requirements of about -40°C to +65°C, so that it can better adapt to extreme environments with complex and changeable temperatures.

[0093] In order to further improve the working stability of the industrial tablet computer 100, the present application also designs the circuit inside the main housing 117 to prevent electromagnetic interference. For details, please refer to Fig.11 , the figure shows the internal structure of the main housing 117. As shown in the figure, a partition 1174 is provided in the main housing 117. The partition 1174 divides the internal space of the main housing 117 into a first installation cavity 11751 and a second installation cavity 11752. The mainboard 118 is provided in the first installation cavity 11751. The power supply assembly 119 is provided in the second installation cavity 11752. Specifically, the power supply assembly 119 may include a power board 1191 and a power supply filter 1192 as shown in the figure. A wiring hole 11741 is provided on the partition 1174. The mainboard 118 and the power supply assembly 119 are electrically connected by a wire (not shown) passing through the wiring hole 11741.

[0094] In this embodiment, the mainboard 118 and the power supply assembly 119 are isolated from each other by the partition 1174, which can effectively reduce the electromagnetic interference between the mainboard 118 and the power supply assembly 119 and ensure the stable operation of the industrial tablet computer 100.

[0095] Based on the weakening of electromagnetic interference between the screen assembly 116 and the mainboard 118 and between the screen assembly 116 and the power supply assembly 119 by the baffle 1171, and the weakening of electromagnetic interference between the mainboard 118 and the power supply assembly 119 by the partition 1174, the industrial tablet computer 100 has good electromagnetic compatibility.

[0096] For the assembly of the main housing 117, Figure 7 and Figure 8 As shown, a mounting opening 1176 is provided on the side of the main housing 117 opposite to the baffle 1171. The mounting opening 1176 is used for the mainboard 118 to be installed in the main housing 117. A cover plate 1177 is detachably provided at the mounting opening 1176. Further, the cover plate 1177 and the main housing 117 can be connected by a Fig. 9 The same sealing structure is shown between the front panel 111 and the mounting wall 1172 to fully ensure the sealing performance of the internal space of the main shell 117, thereby providing a reliable working environment for the mainboard 118.

[0097] like Figure 2 As shown in FIG. 1 , in addition to setting the handle 120, the industrial tablet computer 100 can also retain the hands-free speaker 160 and the hands-free microphone 170, so that in a relatively quiet environment, the user can also make a call through the hands-free speaker 160 and the hands-free microphone 170. Figure 1 This can be achieved by the function button group 152 on the front panel 111 as shown, or by touching the screen assembly 116 .

[0098] For the circuit structure of the industrial tablet computer 100, please refer to Fig.12, CPU1181 can use LPDDR4 onboard memory 1182, and can realize data storage through SATA3.0 onboard hard disk 1183. By connecting the sound card 1184, the audio input and output between the speaker 1232 and microphone 1222 on the handle 120 and the hands-free speaker 160 and hands-free microphone 170 can be realized. In addition, the indicator light can be set to feedback the current call mode, for example, the indicator light is off when the handle 120 is talking, and the indicator light is on when the hands-free call is made. At the same time, an audio power amplifier module (power amplifier A 181 and power amplifier B 182) is matched in each of the two audio output lines to drive the speaker 1232 and the hands-free speaker 160. The key signals of the digital key group 151 and the function key group 152 are collected and processed by CPLD1185. The digital key group 151 can directly input numbers or make calls, etc., and the function key group 152 can realize the switching control between the handle call and the hands-free call, power on and off, page turning and other functions. In addition, a GPIO interface 11851 is provided to support function expansion. The screen component 116 can use a 7-inch display screen, and with a display conversion chip 1186, it can support multi-touch operation. The CPU 1181 is connected to the MCU 11871 and the camera 11872 through the USB HUB 1187 to achieve the corresponding functions. The network chip 1188 is also used to expand the two-way gigabit network interface A 11881 and the network interface B 11882.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application is described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. An industrial tablet computer, characterized in that: include: A computer body and a handset, wherein the computer body is wall-mounted on a carrier, and the handset is connected to the computer body via a cable signal; The handle comprises a handle, a mouthpiece and an earpiece, wherein the mouthpiece and the earpiece are respectively arranged at two ends of the same side of the handle, a mouthpiece limiting protrusion is arranged on the outer periphery of the mouthpiece away from the handle, and an earpiece limiting protrusion is arranged on the outer periphery of the earpiece away from the handle; The computer body comprises a front panel, on which a mouth bearing limiter and an ear bearing limiter are arranged, a mouth bearing limiter groove with an upward notch is formed between the mouth bearing limiter and the front panel, and an ear bearing limiter groove with an upward notch is formed between the ear bearing limiter and the front panel; The mouthpiece limiting groove is used for the mouthpiece limiting protrusion to be snapped in downwards, and the earpiece limiting groove is used for the earpiece limiting protrusion to be snapped in downwards, so that the handle is mounted on the front panel.

2. The industrial tablet computer according to claim 1, characterized in that: A first flexible cushion layer is provided on the inner wall of the groove of the mouth bearing limiter and the ear bearing limiter facing the front panel; The mouth bearing limiting protrusion and the ear bearing limiting protrusion are both provided with a second flexible cushion layer on a side away from the handle; The mouth bearing limiting protrusion and the ear bearing limiting protrusion are used to respectively snap downward into the mouth bearing limiting groove and the ear bearing limiting groove, and the first flexible pad layer is clamped between the mouth bearing limiting protrusion and the inner wall of the groove of the mouth bearing limiting member and between the ear bearing limiting protrusion and the inner wall of the groove of the ear bearing limiting member to form an interference fit, and the second flexible pad layer is clamped between the mouth bearing limiting protrusion and the front panel and between the ear bearing limiting protrusion and the front panel to form an interference fit.

3. The industrial tablet computer according to claim 2, characterized in that: After the mouth bearing limiting protrusion and the ear bearing limiting protrusion are respectively inserted downward into the mouth bearing limiting groove and the ear bearing limiting groove, there is a gap between the mouth bearing limiting protrusion and the bottom wall of the mouth bearing limiting groove, and between the ear bearing limiting protrusion and the bottom wall of the ear bearing limiting groove.

4. The industrial tablet computer according to claim 2, characterized in that: The mouth bearing limiter comprises a first base, a first flexible gasket and a first pressing block, wherein the first base is arranged on the front panel and protrudes from the surface of the front panel, the first flexible gasket is arranged on a side of the first base away from the front panel, and the first pressing block is pressed on a side of the first flexible gasket away from the first base; The first flexible gasket and the first pressing block both protrude upward from the first base, so that the mouth bearing limiting groove is formed between the first base, the first pressing block and the front panel, and the portion of the first flexible gasket protruding upward from the first base forms a first flexible pad layer on the inner wall of the groove of the mouth bearing limiting member; and / or, The ear bearing limiter comprises a second base, a second flexible gasket and a second pressing block, wherein the second base is arranged on the front panel and protrudes from the surface of the front panel, the second flexible gasket is arranged on a side of the second base away from the front panel, the second pressing block is pressed on a side of the second flexible gasket away from the second base, and the second pressing block is fixedly connected to the second base; The second flexible gasket and the second pressing block both protrude upward from the second base, so that the ear bearing limit groove is formed between the base, the second pressing block and the front panel, and the portion of the second flexible gasket protruding upward from the second base forms a first flexible pad layer on the inner wall of the groove of the ear bearing limiter.

5. The industrial tablet computer according to claim 1, characterized in that: The mouth bearing limiting member is in a semi-ring shape that matches the shape of the bottom edge of the mouth bearing limiting protrusion; The ear piece limiter comprises a first limiter portion and a second limiter portion which are mirror-symmetrical with respect to a vertical mirror plane, and the first limiter portion and the second limiter portion are respectively adapted to the shape of the obliquely lower edges on both sides of the ear piece limiter protrusion.

6. The industrial tablet computer according to claim 5, characterized in that: A first magnetic component is provided on the front panel at a protrusion between the first limiting portion and the second limiting portion, and a second magnetic component is provided on the handle at a position adjacent to the ear support, and the first magnetic component is used to be adsorbed and connected with the second magnetic component when the handle is mounted on the front panel.

7. The industrial tablet computer according to any one of claims 1 to 6, characterized in that: The front panel is provided with a plurality of button ports; The industrial tablet computer further includes a key assembly, the key assembly including a key panel and a flexible key cover, the key panel is arranged on the back of the front panel, and a plurality of buttons are arranged on the key panel at a position opposite to the key port; The back of the flexible key cover is concave to form a plurality of buckling grooves, the back of the flexible key cover is attached to the key board, and each buckling groove buckles a button; A pressing block is formed on the front side of the flexible key cover at a position opposite to each snap-fit ​​groove. The flexible key cover is clamped between the key plate and the front panel to form an interference fit, and each pressing block extends out from a key opening.

8. The industrial tablet computer according to any one of claims 1 to 6, characterized in that: The front panel is integrated with a screen assembly; The computer body also includes a main housing, the front of the main housing has a baffle, the edge of the baffle is raised and encloses a mounting wall, the front panel is connected to the mounting wall, so that the screen assembly is accommodated in the accommodating cavity enclosed by the mounting wall; A mainboard is disposed inside the main shell, a wire-passing hole is provided on the baffle, the screen assembly and the mainboard are electrically connected via a wire passing through the wire-passing hole, and the accommodating cavity is used to receive part of the wire.

9. The industrial tablet computer according to claim 8, characterized in that: At the edges of the mounting wall and the front panel facing each other, one is provided with an annular sealing groove, and the other is provided with an annular sealing rib. A sealing ring is embedded in the sealing groove, and the sealing rib is used to at least partially insert into the sealing groove and press the sealing ring to form an interference fit.

10. The industrial tablet computer according to claim 8, characterized in that: The mainboard is arranged in parallel with the baffle, a CPU is arranged on the side of the mainboard facing the baffle, a heat conductive block is protruded on the baffle at a position opposite to the CPU, the heat conductive block is fitted with the CPU, and the heat conductive block is used to conduct the heat of the CPU to the baffle.

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