Industrial tablet PC

Abstract

This application relates to the field of electronic equipment technology and discloses an industrial tablet PC, comprising: a computer body and a handset, the handset being connected to the computer body via a cable; the handset includes a handle, a housing, and an earpiece, the housing having a housing limiting protrusion on its outer periphery opposite to the handle, and the earpiece having an earpiece limiting protrusion on its outer periphery opposite to the handle; the computer body includes a front panel, the front panel having a housing limiting member and an earpiece limiting member, the housing limiting member forming an upward-facing housing limiting groove with the front panel, and the earpiece limiting member forming an upward-facing earpiece limiting groove with the front panel; the housing limiting groove is used for the housing limiting protrusion to engage downwards, and the earpiece limiting groove is used for the earpiece limiting protrusion to engage downwards, so that the handset is mounted on the front panel. Through the above method, this application, while improving the call quality of the tablet PC via the handset, also ensures a stable connection of the handset to the computer body under extremely harsh environments.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, specifically to an industrial tablet PC. Background Technology

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

[0003] Existing industrial tablet PCs achieve call functionality through speakers and microphones integrated within the main unit. However, in the extreme scenarios mentioned above, there is often significant noise, which interferes with the microphone's sound pickup and the user's listening experience through the speakers, thus affecting call quality.

[0004] Therefore, how to better ensure the call quality of computers has become an urgent problem to be solved for industrial tablet PCs. Summary of the Invention

[0005] In view of the above problems, this application provides an industrial tablet PC with a handset, which not only improves the call quality of the tablet PC through the handset, but also ensures a stable connection of the handset to the main body of the computer in extremely harsh environments.

[0006] According to one aspect of the embodiments of this application, an industrial tablet computer is provided, including: a computer body and a handset. The computer body is wall-mounted on a carrier, and the handset is connected to the computer body via a cable signal connection. The handset includes a handle, a mouthpiece, and an earpiece. The mouthpiece and earpiece are respectively disposed at both ends on the same side of the handle. A mouthpiece limiting protrusion is provided on the outer periphery of the side of the mouthpiece facing away from the handle, and an earpiece limiting protrusion is provided on the outer periphery of the side of the earpiece facing away from the handle. The computer body includes a front panel, and a mouthpiece limiting member and an earpiece limiting member are disposed on the front panel. A mouthpiece limiting groove with an upward opening is formed between the mouthpiece limiting member and the front panel, and an earpiece limiting groove with an upward opening is formed between the earpiece limiting member and the front panel. The mouthpiece limiting groove is used for the mouthpiece limiting protrusion to be inserted downward, and the earpiece limiting groove is used for the earpiece limiting protrusion to be inserted downward, so that the handset is mounted on the front panel.

[0007] In one alternative embodiment, a first flexible pad is provided on the inner wall of the groove facing the front panel on both the mouth bearing limiting member and the ear bearing limiting member; a second flexible pad is provided on the side of the mouth bearing limiting protrusion and the ear bearing limiting protrusion facing away from the handle; after the mouth bearing limiting protrusion and the ear bearing limiting protrusion are respectively used to engage downwards with the mouth bearing limiting groove and the ear bearing limiting groove, the first flexible pad 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 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.

[0008] In one alternative embodiment, after the mouth bearing limiting protrusion and the lug bearing limiting protrusion are respectively engaged downwards into the mouth bearing limiting groove and the lug bearing limiting groove, there are gaps between the mouth bearing limiting protrusion and the bottom wall of the mouth bearing limiting groove, and between the lug bearing limiting protrusion and the bottom wall of the lug bearing limiting groove.

[0009] In one alternative embodiment, the mouth-holding limiting member includes a first base, a first flexible gasket, and a first pressing block. The first base is disposed on the front panel and protrudes from the surface of the front panel. The first flexible gasket is disposed on the side of the first base opposite to the front panel. The first pressing block presses against the side of the first flexible gasket opposite to the first base. Both the first flexible gasket and the first pressing block protrude upward from the first base, forming a mouth-holding limiting groove between the first base, the first pressing block, and the front panel. 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-holding limiting member; and / or The lug retainer includes a second base, a second flexible pad, and a second pressure block. The second base is disposed on the front panel and protrudes from the surface of the front panel. The second flexible pad is disposed on the side of the second base away from the front panel. The second pressure block is pressed against the side of the second flexible pad away from the second base, and the second pressure block is fixedly connected to the second base. Both the second flexible pad and the second pressure block protrude upward from the second base, so that a lug retainer groove is formed between the base, the second pressure block, and the front panel. The portion of the second flexible pad that protrudes upward from the second base forms a first flexible pad layer on the inner wall of the groove of the lug retainer.

[0010] In one alternative embodiment, the mouth support retainer is semi-circular in shape, which is adapted to the shape of the bottom edge of the mouth support retainer protrusion; the ear support retainer includes a first retaining portion and a second retaining portion that are mirror-symmetrical with respect to the vertical mirror surface, and the first retaining portion and the second retaining portion are adapted to the shape of the lower edge on both sides of the ear support retainer protrusion.

[0011] In one alternative embodiment, a first magnetic member is provided on the front panel at a position between the first limiting part and the second limiting part, and a second magnetic member is provided on the handle at a position adjacent to the earpiece. The first magnetic member is used to magnetically connect with the second magnetic member when the handle is mounted on the front panel.

[0012] In one alternative embodiment, the front panel has multiple button openings; the industrial panel PC also includes a button assembly, which includes a button board and a flexible button sleeve. The button board is located on the back of the front panel, and multiple buttons are arranged on the button board opposite to the button openings. The back of the flexible button sleeve is recessed to form multiple fastening grooves, and the back of the flexible button sleeve is attached to the button board, with each fastening groove covering a button. The front of the flexible button sleeve has protrusions forming pressing blocks opposite to each fastening groove. The flexible button sleeve is clamped between the button board and the front panel to form an interference fit, and each pressing block extends from one button opening.

[0013] In one alternative approach, a screen assembly is integrated into the front panel; the computer body also includes a main housing, the front of which has a baffle, the edges of which protrude and enclose to form a mounting wall, the front panel being connected to the mounting wall so that the screen assembly is housed in a cavity enclosed by the mounting wall; a motherboard is housed inside the main housing, and a wire hole is provided on the baffle, the screen assembly and the motherboard being electrically connected by wires passing through the wire hole, and the cavity being used to accommodate some of the wires.

[0014] In one alternative embodiment, at the edges of the mounting wall and the front panel facing each other, one has an annular sealing groove and the other has an annular sealing rib protruding from it. 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 together to form an interference fit.

[0015] In one alternative configuration, the motherboard and the bezel are arranged parallel to each other. The CPU is located on the side of the motherboard facing the bezel, and a heat-conducting block is protruding on the bezel opposite the CPU. The heat-conducting block is in contact with the CPU and is used to conduct the heat of the CPU to the bezel.

[0016] The industrial tablet PC provided in this application embodiment firstly employs a microphone handle configured on the main body of the computer. This allows the user to hold the microphone handle to the side of their face during calls, bringing the microphone closer to their mouth and the speaker closer to their ear, thereby achieving better sound reception and ensuring good call quality even in noisy environments. Furthermore, considering that industrial tablet PCs are mostly used in environments subject to impact and vibration, this application embodiment incorporates a mouth-holding limiting member and an ear-holding limiting member on the front panel to ensure the microphone handle remains securely attached to the front panel even in such conditions. These form upward-facing mouth-holding limiting grooves and ear-holding limiting grooves. Simultaneously, mouth-holding limiting protrusions and ear-holding limiting protrusions are respectively provided on the outer periphery of the mouth-holding and ear-holding limiting grooves. When the main body of the computer is wall-mounted on a carrier, the mouth-holding limiting protrusions and ear-holding limiting protrusions can be used to engage the mouth-holding limiting grooves and ear-holding limiting grooves respectively, stably and reliably mounting the microphone handle to the front panel. This ensures that the microphone handle remains on the front panel and does not detach even in harsh environments such as impact and vibration.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

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

[0020] Figure 2 A schematic diagram of the structure of an industrial tablet PC after the microphone handle has been removed from the main body of the computer, as provided in an embodiment of the present invention.

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

[0022] Figure 4 A schematic diagram of the structure of an industrial tablet PC provided in an embodiment of the present invention when the microphone handle is about to connect with the main body of the computer.

[0023] Figure 5This is an exploded structural diagram of the mouth support limiting member and the ear support limiting member in the industrial tablet computer provided in an embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional view of the button assembly on the front panel of an industrial tablet computer provided in an embodiment of the present invention.

[0025] Figure 7 This is an exploded structural diagram of the main body of the industrial tablet computer provided in an embodiment of the present invention.

[0026] Figure 8 An exploded structural diagram of the main body of the industrial tablet computer provided in an embodiment of the present invention;

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

[0028] Figure 10 A schematic cross-sectional view of the industrial tablet PC at the junction of the CPU and the heat-conducting block, provided in an embodiment of the present invention.

[0029] Figure 11 This is a schematic diagram of the internal structure of the main casing in an industrial tablet PC provided in an embodiment of the present invention;

[0030] Figure 12 This is 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 detailed embodiments are as follows:

[0032] 100. Industrial panel PCs;

[0033] 110. Computer body;

[0034] 111. Front panel; 1111. Button port; 1112. Sealing groove; 1113. Sealing ring;

[0035] 112. Bearing limiting component; 1121. Bearing limiting groove; 1122. Inner wall of the first groove; 1123. First base; 1124. First flexible gasket; 1125. First pressure block;

[0036] 113. Ear support limiting component; 1131. Ear support limiting groove; 1132. Inner wall of the second groove; 1133. Second base; 1134. Second flexible gasket; 1135. Second pressure block; 1136. First limiting part; 1137. Second limiting part;

[0037] 114. First flexible pad; 115. First magnetic element; 116. Screen assembly;

[0038] 117. Main housing; 1171. Baffle; 11711. Wiring hole; 11712. Heat-conducting block; 1172. Mounting wall; 11721. Sealing rib; 1173. Receiving cavity; 1174. Partition; 11741. Wiring hole; 11751. First mounting cavity; 11752. Second mounting cavity; 1176. Mounting port; 1177. Cover plate;

[0039] 118. Motherboard; 1181. CPU; 1182. Memory; 1183. Hard Drive; 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 board; 1192. Power filter;

[0041] 120. Handle; 121. Handle; 122. Mouth support; 1221. Mouth support limiting protrusion; 1222. Microphone; 123. Ear support; 1231. Ear support limiting protrusion; 1232. Speaker; 124. Second flexible pad; 125. Second magnetic component;

[0042] 130. Cable; 140. Button assembly; 141. Button board; 1411. Button; 142. Flexible button sleeve; 1421. Snap-fit ​​groove; 1422. Pressing block;

[0043] 151. Numeric keypad group; 152. Function keypad group; 160. Hands-free speaker; 170. Hands-free microphone; 181. Power amplifier A; 182. Power amplifier B. Detailed Implementation

[0044] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0046] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0047] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0049] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0050] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] To improve the call quality of industrial tablet PCs in extremely harsh environments, this application first equips the tablet PC with a dedicated handset for making calls. Similar to a telephone, the handset can contact the user's mouth through the mouthpiece and the earpiece can be fastened to the user's ear, thereby improving the sound pickup effect of the microphone at the mouthpiece and the sound effect of the user hearing from the speaker at the earpiece. This ensures the quality of calls made by users through industrial tablet PCs in noisy environments such as military, shipborne, vehicle-mounted, aerospace, and machinery factories.

[0053] Based on the configuration of the handset for the industrial tablet PC, and considering that the tablet PC is installed in the aforementioned extremely harsh application scenarios, the carrier supporting the tablet PC may be an object subject to impact, turbulence, and vibration, such as a ship hull, vehicle body, airplane, or machine tool. The conventional method of fixing the handset on a telephone is simply not suitable for these environments. Therefore, this application also provides a robust design for the connection and fixation of the handset to the computer body for wall-mounted installation of industrial tablet PCs on corresponding carriers, so as to ensure that the handset can still be stably held on the computer body under greater impact and vibration.

[0054] For the overall structure of the industrial tablet PC provided in this application embodiment, please refer to [link / reference]. Figure 1 The industrial panel PC 100 includes a computer body 110 and a handset 120. The computer body 110 is wall-mounted onto a carrier (not shown). Specifically, the carrier can be a structure such as a ship hull, vehicle body, aircraft, or machine tool, as mentioned above. After the computer body 110 is wall-mounted onto the carrier, the handset 120 extends vertically. The handset 120 and the computer body 110 are connected via a cable 130. The cable 130 can be an aviation connector cable, which is characterized by reliable and stable connection, thus ensuring the stability of signal transmission between the handset 120 and the computer body 110. The cable 130 can be detachably connected to the handset 120 or the computer body 110, allowing for complete detachment. Furthermore, at least a portion of the cable 130 can also be... Figure 1 As shown, it is spirally wound, similar to a telephone line, so that it can be stretched and extended when the user removes the handset 120 to make a call, ensuring that the user can still make a call through the handset 120 even when the user is at a relatively far distance from the computer body 110.

[0055] Please combine further Figure 2The figure shows the structure of the microphone 120 after it has been removed from the computer body 110. As shown, the microphone 120 includes a handle 121, a mouthpiece 122, and an earpiece 123. The mouthpiece 122 and the earpiece 123 are respectively located at both ends of the same side of the handle 121. The outer periphery of the mouthpiece 122 opposite to the handle 121 has a mouthpiece limiting protrusion 1221, and the outer periphery of the earpiece 123 opposite to the handle 121 has an earpiece limiting protrusion 1231. The mouthpiece 122 houses a microphone 1222 for recording audio during calls, and the earpiece 123 houses a speaker 1232 for listening during calls.

[0056] Please combine further Figure 3 The cross-sectional structure at the connection between the handset 120 and the computer body 110 is shown in the figure. The computer body 110 includes a front panel 111. The front panel 111 is provided with a mouth support limiting member 112 and a lug support limiting member 113. A mouth support limiting groove 1121 with the slot opening facing upward is formed between the mouth support limiting member 112 and the front panel 111. A lug support limiting groove 1131 with the slot opening facing upward is formed between the lug support limiting member 113 and the front panel 111.

[0057] Please combine further Figure 4 The diagram shows the structure of the handset 120 when it is about to be connected to the front panel 111. As can be seen from the diagram, the mouthpiece retaining groove 1121 is used for the mouthpiece retaining protrusion 1221 to be inserted downwards, and the earpiece retaining groove 1131 is used for the earpiece retaining protrusion 1231 to be inserted downwards, that is, along... Figure 3 and Figure 4 Insert it in the direction indicated by the middle arrow so that the handle 120 is as shown. Figure 1 and Figure 3 The device shown is mounted and fixed to the front panel 111.

[0058] Accordingly, when removing the handset 120, the user needs to hold the handle 121 and move the handset 120 upwards. After the mouthpiece limiting protrusion 1221 and the earpiece limiting protrusion 1231 have completely moved out of the mouthpiece limiting groove 1121 and the earpiece limiting groove 1131 respectively, the user can then hold the handset 120 to the side of their face to make a call.

[0059] The computer body 110 is wall-mounted onto the carrier, and the mouth bearing limiting protrusion 1221 and the ear bearing limiting protrusion 1231 respectively engage downwards with the mouth bearing limiting groove 1121 and the ear bearing limiting groove 1131. After the handset 120 is mounted and fixed on the front panel 111, the mouth bearing limiting member 112 and the ear bearing limiting member 113 work together to limit the handset 120 in all directions except upwards. When the carrier supporting the computer body 110 in the wall-mounted manner is impacted, shaken, bumped, or vibrated, without considering production and assembly tolerances, the handset 120 will only move upwards. Since the upward movement needs to overcome the weight of the handset 120 itself, except in extremely special cases such as severe up-and-down impacts or shaking, in most other impact, shaking, or vibration environments, such as the aforementioned military, shipborne, vehicle-mounted, aerospace, and mechanical factory scenarios, the handset 120 can remain on the front panel 111 without falling off, thus ensuring the overall structural stability of the industrial panel PC 100.

[0060] In summary, the industrial tablet PC 100 provided in this application embodiment first adopts the method of configuring the microphone handle 120 on the computer body 110, so that when the user makes a call, he can hold the microphone handle 120 to the side of his face, so that the microphone 1222 is closer to the mouth and the speaker 1232 is closer to the ear, thereby achieving better sound hearing and sound reception, and ensuring that the industrial tablet PC 100 still has good call quality in noisy environments.

[0061] Furthermore, considering that industrial tablet PCs 100 are mostly used in environments subject to impact and vibration, in order to ensure that the handset 120 remains securely connected to the front panel 111 under such conditions, this embodiment of the application provides a mouth-bearing limiting member 112 and an ear-bearing limiting member 113 on the front panel 111, thereby forming a mouth-bearing limiting groove 1121 and an ear-bearing limiting groove 1131 with the groove opening facing upwards. At the same time, mouth-bearing limiting protrusions 1221 and ear-bearing limiting protrusions 1231 are provided on the outer periphery of the mouth-bearing 122 and ear-bearing limiting protrusions 1231, respectively. This allows the handset 120 to be stably and reliably mounted and fixed on the front panel 111 by the mouth-bearing limiting protrusions 1221 and ear-bearing limiting protrusions 1231 respectively engaging the mouth-bearing limiting grooves 1121 and ear-bearing limiting grooves 1131, ensuring that the handset 120 remains on the front panel 111 without falling off under harsh environments such as impact and vibration.

[0062] To further enhance the stability of the handle 120 mounting, this application also proposes an implementation method, firstly as follows: Figure 3 As shown, a first flexible pad 114 is provided on the inner wall of the groove facing the front panel 111 on both the mouth-bearing limiting member 112 and the ear-bearing limiting member 113 (on the inner wall of the first groove 1122 and the inner wall of the second groove 1132 in the figure). Next, as... Figure 2 and Figure 3 As shown, both the mouth support limiting protrusion 1221 and the ear support limiting protrusion 1231 are provided with a second flexible pad 124 on the side opposite to the handle 121. The first flexible pad 114 and the second flexible pad 124 can both be silicone pads, soft plastic pads, etc.

[0063] Please continue reading. Figure 3 The bearing retaining protrusion 1221 and the lug retaining protrusion 1231 are used to respectively engage the bearing retaining groove 1121 and the lug retaining groove 1131. The first flexible pad 114 is clamped between the bearing retaining protrusion 1221 and the inner wall 1122 of the first groove, and between the lug retaining protrusion 1231 and the inner wall 1132 of the second groove, forming an interference fit. The second flexible pad 124 is clamped between the bearing retaining protrusion 1221 and the front panel 111, and between the lug retaining protrusion 1231 and the front panel 111, forming an interference fit. The interference amount of the above-mentioned interference fit can be 0.2mm, that is, after clamping, the first flexible pad 114 and the second flexible pad 124 are compressed and deformed by 0.2mm. Of course, the interference amount can also be set to other values ​​as needed, which are not limited here.

[0064] With the above settings, after the handset 120 is mounted, the front and rear sides of the mouthpiece limiting protrusion 1221 and the earpiece limiting protrusion 1231 (i.e., Figure 3 The left and right sides (from the perspective of the device) are respectively pressed against the first flexible pad 114 and the second flexible pad 124. On the one hand, this can increase the friction between the front and rear sides of the mouth support limiting protrusion 1221 and the ear support limiting protrusion 1231, so that they can resist stronger impacts and vibrations and are not easy to shake in the mouth support limiting groove 1121 and the ear support limiting groove 1131. On the other hand, it can also prevent damage from collisions and friction between the mouth support limiting protrusion 1221 and the front panel 111 and the mouth support limiting member 112, and between the ear support limiting protrusion 1231 and the front panel 111 and the ear support limiting member 113 during the placement and removal of the handset 120.

[0065] To further reduce the collision between the bearing retaining protrusion 1221 and the inner wall of the bearing retaining groove 1121, and the collision between the lug retaining protrusion 1231 and the inner wall of the lug retaining groove 1131, such as Figure 3 As shown, after the mouth bearing limiting protrusion 1221 and the lug bearing limiting protrusion 1231 are respectively engaged with the mouth bearing limiting groove 1121 and the lug bearing limiting groove 1131, there is a gap of size D1 between the mouth bearing limiting protrusion 1221 and the bottom wall of the mouth bearing limiting groove 1121, and there is a gap of size D2 between the lug bearing limiting protrusion 1231 and the bottom wall of the lug bearing limiting groove 1131.

[0066] In this embodiment, by designing the depth of the mouthpiece limiting groove 1121 to be greater than the height of the mouthpiece limiting protrusion 1221, and the depth of the earpiece limiting groove 1131 to be greater than the height of the earpiece limiting protrusion 1231, after the microphone handle 120 is inserted downwards, there are gaps between the bottom wall of the mouthpiece limiting protrusion 1221 and the mouthpiece limiting groove 1121, and between the bottom wall of the earpiece limiting protrusion 1231 and the earpiece limiting groove 1131. These gaps ensure that no impact or collision will occur between them, thereby effectively ensuring the structural stability of the mouthpiece limiting member 112, the earpiece limiting member 113, and the microphone handle 120. Based on this, combined with the first flexible pad 114 and the second flexible pad 124 on both sides of the mouthpiece limiting protrusion 1221 and the earpiece limiting protrusion 1231 after the handset 120 is inserted in the above embodiment, all-round collision protection is achieved around the mouthpiece limiting protrusion 1221 and the earpiece limiting protrusion 1231, thereby fully ensuring the stability and reliability of the handset 120 after it is mounted.

[0067] To facilitate the assembly of the bearing retaining member 112, this application has further refined its structural design, as detailed in the following reference. Figure 5 The figure shows the exploded structure at the bearing retainer 112. As shown, the bearing retainer 112 includes a first base 1123, a first flexible gasket 1124, and a first pressing block 1125. The first base 1123 is disposed 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 it can be fixedly connected to the front panel 111 by means of threaded fasteners, welding, etc. The first flexible gasket 1124 is disposed on the side of the first base 1123 opposite to the front panel 111, and the first pressing block 1125 presses against the side of the first flexible gasket 1124 opposite to the first base 1123.

[0068] Specifically, the first pressing block 1125 and the first base 1123 can be made of metal or hard plastic, and the first flexible pad 1124 can be made of soft silicone. After the first pressing block 1125 is pressed onto the first flexible pad 1124, it can be used as follows: Figure 5 As shown, the first bearing retainer 112 is assembled by threaded fasteners passing sequentially through the first pressure block 1125 and the first flexible gasket 1124 and then threadedly connecting to the first base 1123. Of course, the first flexible gasket 1124 and the first base 1123, as well as the first pressure block 1125 and the first flexible gasket 1124, can also be assembled by bonding, welding, or other methods; no specific method is limited here.

[0069] Please combine further Figure 3The first flexible pad 1124 and the first pressure block 1125 both protrude upward from the first base 1123, so that the first base 1123, the first pressure block and the front panel 111 form the aforementioned mouth bearing limiting groove 1121, and the portion of the first flexible pad 1124 protruding upward from the first base 1123 forms the first flexible pad layer 114 in the mouth bearing limiting groove 1121.

[0070] It should be noted that if the front panel 111 and the bearing retaining member 112 are manufactured using an integral molding method, the bearing retaining groove 1121 needs to be formed, which will place higher demands on the manufacturing and processing capabilities of the front panel 111, undoubtedly leading to an increase in production costs. Therefore, in this embodiment, the bearing retaining member 112 is divided into a first base 1123 and a first pressure block 1125 that are assembled with each other. The bearing retaining groove 1121 is formed by the first pressure block 1125 protruding upwards from the first base 1123. This allows both the first base 1123 and the first pressure block 1125 to be conventional block structures, facilitating production and processing.

[0071] Furthermore, considering that when the first flexible pad 114 is set on the inner wall of the already formed bearing limiting groove 1121, it is difficult to perform the corresponding operation due to the size of the bearing limiting groove 1121. Therefore, in this embodiment, the formation of the first flexible pad 114 in the bearing limiting groove 1121 is incorporated into the assembly step of the bearing limiting member 112. Specifically, when the first pressure block 1125 is assembled on the first base 1123, the first flexible pad 1124 is clamped between the two, so that the first flexible pad 1124 is installed and fixed at the same time. By the way that the first flexible pad 1124 protrudes upward from the first base 1123, the portion of the first flexible pad 1124 located in the bearing limiting groove 1121 forms the first flexible pad 114. This arrangement not only facilitates the installation of the first flexible pad 1124 and the first pressure block 1125 on the first base 1123, but also reliably fixes the first flexible pad 1124 to ensure that the first flexible pad 1124 can be effectively clamped between the mouth support limiting protrusion 1221 and the first pressure block 1125, thereby providing reinforcement and impact buffering for the mounting of the handset 120.

[0072] Similarly, such as Figure 3 and 5 As shown, the ear support limiting member 113 may include a second base 1133, a second flexible pad 1134 and a second pressing block 1135. They can be arranged in the same way as the first base 1123, the first flexible pad 1124 and the first pressing block 1125 described above. The specific details will not be elaborated here.

[0073] To make the mounting of the handle 120 more convenient and stable, such as Figure 2As shown, the bearing retainer 112 can be semi-annular in shape, adapting to the shape of the bottom edge of the bearing retainer protrusion 1221. The lug retainer 113 can include a first retaining portion 1136 and a second retaining portion 1137 that are mirror-symmetrical with respect to the vertical mirror surface. The first retaining portion 1136 and the second retaining portion 1137 are respectively adapted to the shape of the lower oblique edges on both sides of the lug retainer protrusion 1231. It should be noted here that "the lower oblique edges on both sides of the lug retainer 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 that is blocked on the opposite side.

[0074] exist Figure 2 In the specific embodiment shown, both the mouth support 122 and the ear support 123 are circular. Correspondingly, the mouth support limiting member 112 is semi-circular, and the first limiting portion 1136 and the second limiting portion 1137 of the ear support limiting member 113 are both arc-shaped. It is understood that the figure is only one embodiment shown in this application and does not constitute a limitation on their specific shapes. For example, in other embodiments, the mouth support 122 and the ear support 123 may also be elliptical, square, or other irregular shapes, and the mouth support limiting member 112 and the ear support limiting member 113 may be designed to fit the shape.

[0075] from Figure 1 and Figure 2 As can be seen, compared to the lug retainer 113 and the lug retainer protrusion 1231, the semi-annular retainer 112 and the retainer protrusion 1221 have a larger engagement area, and the semi-annular retainer 112 can... Figure 2 Left and right directions from the perspective and Figure 3 The rightward direction from the viewing angle provides a better limiting effect for the mouthpiece limiting protrusion 1221, thereby ensuring the stability of the handle 120 mounting.

[0076] Considering that if the earpiece retainer 113 is also set as a semi-circular shape, when mounting the microphone handle 120, the earpiece retainer protrusion 1231 and the earpiece retainer 113, as well as the mouthpiece retainer protrusion 1221 and the mouthpiece retainer 112, need to be accurately aligned in the vertical direction. Otherwise, jamming may occur. For example, when the microphone handle 120 is placed downwards in an inclined position, it may jam with the earpiece retainer 1231 and the mouthpiece retainer 112. Figure 2 From a downward angle, the upper left end of the mouthpiece limiter 112 and the upper right end of the earpiece limiter 113 are blocked, which prevents the microphone handle 120 from moving further downward, which will undoubtedly affect the user's experience.

[0077] Based on the above problems, in this embodiment, the ear support limiting member 113 is divided into a first limiting part 1136 and a second limiting part 1137. The two smaller ear support limiting grooves 1131 on the first limiting part 1136 and the second limiting part 1137 respectively engage with the lower edges of the ear support limiting protrusion 1231 on both sides. While achieving the engagement and fixation of the ear support limiting protrusion 1231, when the handset 120 is mounted, the user only needs to roughly align the ear support 123 with the ear support limiting member 113 to easily insert it.

[0078] from Figure 2 It can also be seen that in the specific embodiment shown in the figure, the outer periphery of the earpiece 123 is significantly larger than that of the mouthpiece 122. This is consistent with the call principle of the microphone handle 120. Specifically, the earpiece 123 needs a large area to ensure that it can basically cover the user's ear, while the mouthpiece 122 only needs to be able to be aligned with the user's mouth to receive sound. Based on this, setting the mouthpiece limiting member 112 as a semi-ring shape and splitting the earpiece limiting member 113 into a first limiting part 1136 and a second limiting part 1137 can also minimize the area occupied by them on the front panel 111 while reliably mounting and fixing the microphone handle 120, thereby achieving the product miniaturization requirement.

[0079] Considering that if the lug 123 is limited only by the first limiting part 1136 and the second limiting part 1137, the lug 123 may easily wobble under strong impact or vibration, therefore, if Figure 2 and Figure 5 As shown, a first magnetic member 115 can be protruded on the front panel 111 at the position between the first limiting part 1136 and the second limiting part 1137, and a second magnetic member 125 is provided on the handle 121 at the position adjacent to the earpiece 123. The first magnetic member 115 is used to be magnetically connected to the second magnetic member 125 when the handset 120 is hung on the front panel 111.

[0080] The position on the handle 121 adjacent to the earpiece 123 is further magnetically connected to the front panel 111 via the first magnetic member 115 and the second magnetic member 125. This not only prevents the earpiece 123 from shaking but also, to a certain extent, suppresses the upward movement of the handset 120, ensuring its stable mounting. Additionally, from... Figure 2 and Figure 5 As can be seen, since the first magnetic component 115 needs to protrude from the front panel 111 to magnetically attach properly to the handle 121, placing the first magnetic component 115 between the first limiting part 1136 and the second limiting part 1137 not only provides a better fixation effect for the earpiece 123, but also does not affect the user's ability to reach their fingers into the space below the first magnetic component 115 to hold the handle 121, ensuring the user's convenience in picking up and putting down the handset 120.

[0081] In addition, to prevent incorrect adsorption, the outer shell of the handset 120 and the front panel 111 can be made of materials such as aluminum alloy or plastic without magnetic attraction, so as to avoid the outer shell of the handset 120 being incorrectly adsorbed with the first magnetic component 115 or the front panel 111 being incorrectly adsorbed with the second magnetic component 125, which would affect the user experience.

[0082] To facilitate the function control of the industrial panel PC 100, physical buttons can also be set on the front panel 111. Please refer to the following for details. Figure 5 and further combine Figure 6 , Figure 6 The figure shows a cross-sectional structure of the front panel 111 at the button area. As shown, the front panel 111 has multiple button openings. The industrial panel 100 also includes a button assembly 140, which includes a button plate 141 and a flexible button sleeve 142. The button plate 141 is located on the back of the front panel 111. Figure 6 (Viewed from the left side of the front panel 111), multiple buttons 1411 are arranged on the button plate 141 opposite to the button openings 1111. Multiple fastening grooves 1421 are recessed on the back of the flexible button sleeve 142, which is attached to the button plate 141, with each fastening groove 1421 covering one button 1411. A pressing block 1422 is protruded on the front of the flexible button sleeve 142, opposite to each fastening groove 1421. The flexible button sleeve 142 is clamped between the button plate 141 and the front panel 111 in an interference fit, with each pressing block 1422 extending from a button opening 1111.

[0083] In this embodiment, the flexible button sleeve 142 is a single piece, and its back side ( Figure 6 After the button 141 (left side view) is attached to the button plate 141, multiple locking grooves 1421 on the back cover the outer periphery of the button 1411, achieving a sealed protection of the space around the button 1411 and ensuring the structural stability of the button 1411. A flexible button sleeve 142 is clamped between the button plate 141 and the front panel 111, forming an interference fit to seal the button opening 1111, ensuring the stability of the internal button plate 141. Simultaneously, a pressing block 1422 protruding from the button opening 1111 on the flexible button sleeve 142 triggers the button 1411 by pressing down on it. Specifically, pressing down on the pressing block 1422 deforms the flexible button sleeve 142, causing it to release from the button 1411, thus triggering the button 1411. To prevent accidental button presses, such as... Figure 6As shown, the flexible button sleeve 142 can have a gap of D3 between the inner wall of the pressing block 1422 and the button 1411, so that when the pressing block 1422 is subjected to a small amount of pressure and a small degree of downward pressure, the button 1411 will not be directly triggered, thus preventing accidental button touch.

[0084] Please refer to it again. Figure 1 The front panel 111 can be equipped with a numeric keypad 151 and a function keypad 152, both of which can adopt the same structure as the keypad assembly 140 described above. Considering that the numeric keypad 151 is only needed when picking up the handset 120 to make a call, to minimize the area of ​​the front panel 111, such as... Figure 1 As shown, the numeric keypad 151 can be set on the front panel 111 in the area between the mouth support limiter 112 and the ear support limiter 113, so as to make use of the space on the front panel 111 corresponding to the position of the mounted handle 121, and at the same time, the numeric keypad 151 can be prevented from being accidentally touched by the handle 121 blocking the numeric keypad 151.

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

[0086] The computer body 110 also includes a main casing 117, the front of which is... Figure 7 The left side (viewed from above) has a baffle 1171, the edge of which protrudes and encloses a mounting wall 1172. The front panel 111 is connected to the mounting wall 1172, so that the screen assembly 116 is housed in the receiving cavity 1173 enclosed by the mounting wall 1172. The main body 117 has a motherboard 118 inside. The baffle 1171 has a wire hole 11711. The screen assembly 116 and the motherboard 118 are electrically connected by a wire (not shown) passing through the wire hole 11711. The receiving cavity 1173 is used to accommodate some of the wires.

[0087] In this embodiment, the motherboard 118 and the screen assembly 116 are separated by a baffle 1171 and electrically connected only through a wire hole 11711. This effectively reduces the electromagnetic interference between the motherboard 118 and the screen assembly 116, improving the stability and reliability of the industrial panel PC 100. Furthermore, it is understood that the wires connecting the motherboard 118 and the screen assembly 116 are based on a redundant design, and their length is generally greater than the distance between interfaces. Additionally, some extra wires may be reserved to meet functional expansion needs. Therefore, to better manage the wires, a mounting wall 1172 protrudes from the edge of the baffle 1171, and the mounting wall 1172 is assembled and connected to the front panel 111. This allows the accommodating cavity 1173 formed by the mounting wall 1172 to accommodate the screen assembly 116 and also better manage excess wires, ensuring a neat and organized internal wiring layout.

[0088] Considering that the industrial panel PC 100 may need to operate reliably in environments with dust, humidity, salt spray, etc., its sealing performance is crucial. Therefore, to improve the sealing performance of the assembly between the front panel 111 and the mounting wall 1172, this application further proposes an implementation method, which will be detailed in the following sections. Figure 7 and Figure 8 and further combine Figure 9 The cross-sectional structure shown has an annular sealing groove 1112 on the front panel 111 at the edges of the mounting wall 1172 and the front panel 111 facing each other. An annular sealing rib 11721 is protruding on the mounting wall 1172. A sealing ring 1113 is embedded in the sealing groove 1112. 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 method of inserting the annular sealing rib 11721 into the sealing groove 1112 and pressing the sealing ring 1113 tightly not only increases the contact area between the front panel 111 and the mounting wall 1172, but also makes 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 at the assembly gap between the two.

[0090] It is understood 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 set on the mounting wall 1172 and the sealing rib 11721 is set on the front panel 111. The assembly method and sealing effect are the same, which will not be elaborated here.

[0091] To ensure sealing performance, the industrial panel PC 100 can also be designed with fanless cooling; please refer to [link / reference needed]. Figure 10As shown in the cross-sectional structure, the CPU1181 can be set on the side of the motherboard 118 facing the baffle 1171. A heat-conducting block 11712 is protruding on 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 conduct the heat of the CPU to the baffle 1171.

[0092] Specifically, the baffle 1171, heat-conducting block 11712, and main housing 117 can be made of integrally molded metal materials with good heat dissipation performance, such as aluminum or copper. Since the CPU 1181 is the main heat-generating component on the motherboard 118, by attaching the heat-conducting block 11712 to the CPU 1181, the heat-conducting block 11712 can quickly absorb the heat generated by 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 it to the outside, thereby achieving efficient heat dissipation for the CPU 1181. The heat from other heat-generating components on the motherboard 118 can be dissipated into the internal space of the main housing 117 and then dissipated through the walls of the main housing 117. Based on this heat dissipation method, combined with the selection of internal electronic components, the industrial panel PC 100 can meet the wide temperature operating requirements of approximately -40℃ to +65℃, thus better adapting to extreme environments with complex and changing temperatures.

[0093] To further improve the operational stability of the industrial panel PC 100, this application also incorporates electromagnetic interference protection design for the circuitry inside the main housing 117. Please refer to [link / reference] for details. Figure 11 The figure shows the internal structure of the main housing 117. As shown, a partition 1174 is provided inside the main housing 117, dividing the internal space of the main housing 117 into a first mounting cavity 11751 and a second mounting cavity 11752. The main board 118 is disposed in the first mounting cavity 11751, and a power supply assembly 119 is disposed in the second mounting cavity 11752. Specifically, the power supply assembly 119 may include a power board 1191 and a power filter 1192 as shown in the figure. A wiring hole 11741 is provided on the partition 1174, and the main board 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 motherboard 118 and the power supply component 119 are isolated from each other by the partition 1174, which can effectively reduce the electromagnetic interference between the motherboard 118 and the power supply component 119 and ensure the stable operation of the industrial panel PC 100.

[0095] Based on the reduction of electromagnetic interference between the screen assembly 116 and the motherboard 118 and between the screen assembly 116 and the power supply assembly 119 by the baffle 1171, and the reduction of electromagnetic interference between the motherboard 118 and the power supply assembly 119 by the partition 1174, the industrial panel PC 100 has good electromagnetic compatibility.

[0096] For the assembly of the main housing 117, such as 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 mounting the motherboard 118 inside the main housing 117. A cover plate 1177 is detachably provided over the mounting opening 1176. Furthermore, the cover plate 1177 and the main housing 117 can be connected by a... Figure 9 The front panel 111 and the mounting wall 1172 shown have the same sealing structure to fully ensure the sealing performance of the internal space of the main housing 117, thereby providing a reliable working environment for the motherboard 118.

[0097] like Figure 2 As shown, in addition to the handset 120, the industrial tablet PC 100 can also simultaneously retain the hands-free speaker 160 and hands-free microphone 170, allowing users to make calls using both in relatively quiet environments. Signal control of the industrial tablet PC 100 can be achieved through... Figure 1 The function buttons on the front panel 111 shown can be used, or they can be used by touch on the screen assembly 116.

[0098] For information on the circuit structure of the industrial panel PC 100, please refer to [link / reference]. Figure 12The CPU 1181 can utilize LPDDR4 onboard memory 1182 and can store data via a SATA 3.0 onboard hard drive 1183. Audio input and output between the speaker 1232 and microphone 1222 on the handset 120 and the hands-free speaker 160 and hands-free microphone 170 is achieved via a connected sound card 1184. Additionally, indicator lights can be set to indicate the current call mode; for example, the indicator light is off when the handset 120 is in use and on when hands-free is used. Simultaneously, an audio amplifier module (amplifier A 181 and amplifier B 182) is paired with each of the two audio output lines to drive the speaker 1232 and hands-free speaker 160. The CPLD 1185 acquires and processes the key signals from the numeric keypad 151 and function keypad 152. The numeric keypad 151 allows direct input of numbers or dialing, while the function keypad 152 enables switching between handset and hands-free use, power on / off, page turning, and other functions. Additionally, an external GPIO interface 11851 is provided to support functional expansion. The screen assembly 116 can use a 7-inch display, paired with a display conversion chip 1186, to support multi-touch operation. The CPU 1181 is extended to connect to the MCU 11871 and the camera 11872 via a USB hub 1187 to achieve corresponding functions. Two gigabit network interfaces, A 11881 and B 11882, are also provided via a network chip 1188.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. An industrial tablet PC, characterized in that, include: The computer body and the microphone handle are provided, wherein the computer body is wall-mounted on a carrier, and the microphone handle is connected to the computer body via a cable signal connection. The microphone handle includes a handle, a mouthpiece, and an earpiece. The mouthpiece and the earpiece are respectively disposed at both ends on the same side of the handle. The outer periphery of the mouthpiece facing away from the handle is provided with a mouthpiece limiting protrusion, and the outer periphery of the earpiece facing away from the handle is provided with an earpiece limiting protrusion. The computer body includes a front panel, on which a mouth-bearing limiting member and an ear-bearing limiting member are provided. The mouth-bearing limiting member and the front panel form an upward-facing mouth-bearing limiting groove, and the ear-bearing limiting member and the front panel form an upward-facing ear-bearing limiting groove. The mouthpiece limiting groove is used for the mouthpiece limiting protrusion to be inserted downwards, and the earpiece limiting groove is used for the earpiece limiting protrusion to be inserted downwards, so that the microphone handle is mounted on the front panel. A first flexible pad layer is provided on the inner wall of the groove facing the front panel on the mouth-bearing limiting member; The mouth-holding limiting member includes a first base, a first flexible pad, and a first pressing block. The first base is disposed on the front panel and protrudes from the surface of the front panel. The first flexible pad is disposed on the side of the first base away from the front panel. The first pressing block is pressed against the side of the first flexible pad away from the first base. Both the first flexible pad and the first pressure block protrude upward from the first base, so that the first base, the first pressure block and the front panel form the mouth support limiting groove, and the portion of the first flexible pad protruding upward from the first base forms the first flexible pad layer on the inner wall of the groove of the mouth support limiting member.

2. The industrial tablet PC according to claim 1, characterized in that, A first flexible pad is provided on the inner wall of the groove facing the front panel on the ear bearing limiting member; Both the mouth support limiting protrusion and the ear support limiting protrusion are provided with a second flexible pad layer on the side opposite to the handle; The bearing retaining protrusion and the lug retaining protrusion are respectively used to be inserted downward into the bearing retaining groove and the lug retaining groove. The first flexible pad is sandwiched between the bearing retaining protrusion and the inner wall of the groove of the bearing retaining member and between the lug retaining protrusion and the inner wall of the groove of the lug retaining member, forming an interference fit. The second flexible pad is sandwiched between the bearing retaining protrusion and the front panel and between the lug retaining protrusion and the front panel, forming an interference fit.

3. The industrial tablet PC according to claim 2, characterized in that, After the mouth support limiting protrusion and the ear support limiting protrusion are respectively inserted downward into the mouth support limiting groove and the ear support limiting groove, there are gaps between the mouth support limiting protrusion and the bottom wall of the mouth support limiting groove, and between the ear support limiting protrusion and the bottom wall of the ear support limiting groove.

4. The industrial tablet PC according to claim 2, characterized in that, The ear support limiting member includes a second base, a second flexible pad, and a second pressing block. The second base is disposed on the front panel and protrudes from the surface of the front panel. The second flexible pad is disposed on the side of the second base away from the front panel. The second pressing block is pressed against the side of the second flexible pad away from the second base, and the second pressing block is fixedly connected to the second base. The second flexible pad and the second pressure block both protrude upward from the second base, so that the lug retaining groove is formed between the base, the second pressure block and the front panel, and the portion of the second flexible pad protruding upward from the second base forms the first flexible pad layer on the inner wall of the groove of the lug retaining member.

5. The industrial tablet PC according to claim 1, characterized in that, The mouth support limiting member is in the shape of a semi-ring that matches the bottom edge of the mouth support limiting protrusion; The ear support limiting member includes a first limiting part and a second limiting part that are mirror-symmetrical with respect to the vertical mirror surface. The first limiting part and the second limiting part are respectively adapted to the edge shape of the ear support limiting protrusion on both sides below.

6. The industrial tablet PC according to claim 5, characterized in that, A first magnetic element is provided on the front panel at a position between the first limiting part and the second limiting part, and a second magnetic element is provided on the handle adjacent to the earpiece. The first magnetic element is used to magnetically connect with the second magnetic element when the handle is hung on the front panel.

7. The industrial tablet PC according to any one of claims 1-6, characterized in that, The front panel has multiple button ports; The industrial tablet PC also includes a button assembly, which includes a button board and a flexible button sleeve. The button board is located on the back of the front panel, and multiple buttons are arranged on the button board at positions opposite to the button opening. The back of the flexible button sleeve has a recessed groove forming multiple fastening slots. The back of the flexible button sleeve is attached to the button plate, and each fastening slot covers a button. The flexible button sleeve has a pressing block protruding on the front side opposite to each snap-fit ​​groove. The flexible button sleeve is clamped between the button plate and the front panel to form an interference fit, and each pressing block extends from a button opening.

8. The industrial tablet PC according to any one of claims 1-6, characterized in that, The front panel integrates a screen assembly; The computer body also includes a main housing, the front of which has a baffle, the edge of which protrudes and surrounds to form a mounting wall, and the front panel is connected to the mounting wall, so that the screen assembly is housed in the receiving cavity formed by the mounting wall. The main housing contains a motherboard, and the baffle has a wire hole. The screen assembly and the motherboard are electrically connected by a wire passing through the wire hole. The accommodating cavity is used to store some of the wires.

9. The industrial tablet PC according to claim 8, characterized in that, At the edges of the mounting wall and the front panel facing each other, one has an annular sealing groove and the other has 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 PC according to claim 8, characterized in that, The motherboard is arranged parallel to the baffle. A CPU is arranged on the side of the motherboard facing the baffle. A heat-conducting block is protruding on the baffle opposite to the CPU. The heat-conducting block is in contact with the CPU and is used to conduct the heat of the CPU to the baffle.

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