Combined Industrial Tablet PC

Abstract

The present invention relates to the technical field of electronic equipment, and discloses a combined industrial tablet computer, comprising a tablet computer body, a protective shell arranged on the tablet computer body, the protective shell comprising a first shell and a second shell arranged on the back of the first shell, a heat dissipation component is arranged on the back of the protective shell, and the heat dissipation component is used to introduce air into the interior of the protective shell to take away the heat of the electronic components of the tablet computer body. The tablet computer body controls the cooling fan to start working, the cooling fan suction generates negative pressure to make the sealing plate move toward the cooling fan, and pushes the connecting rod to drive the moving plate to move to the rear end of the ventilation slot, so that air is drawn into the heat dissipation cavity from the air inlet along the ventilation slots on both sides, so that the air can effectively flow through the electronic components inside the tablet, and finally pass out from the air outlets on both sides to take away the heat of the electronic components of the tablet computer body.

Description

Technical Field

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

[0002] An industrial tablet computer is an electronic device designed and manufactured specifically for industrial environments. It has strong durability and adaptability. Industrial tablet computers usually have a more rugged casing and a higher level of protection to cope with harsh industrial conditions such as dust, water, vibration, and high temperature.

[0003] In order to protect the electronic components of industrial tablet computers from damage by external factors, a protective shell is usually used on the outside, such as a durable plastic or aluminum alloy shell. Aluminum alloy as a shell material usually has good heat dissipation performance, but it can also absorb external heat into the interior. For example, in conditions such as outdoors or in high-temperature workshops, the high temperature of the surrounding environment will increase the heat dissipation burden of the equipment, making it more prone to overheating.

[0004] Some tablet computers that are easy to dissipate heat have also appeared on the market, such as a combined tablet computer disclosed in CN219552903U. After the tablet body and the protective shell are fixed to each other, the power supply head is inserted into the power supply port of the tablet body to power the fan. The fan runs and the tablet body is cooled by air. However, in actual use, the fan can only cool a local area of ​​the tablet computer. The flow path of the hot air is limited, which will cause uneven heat dissipation, cause the temperature of the local area to be too high, and still cause the heat to not be quickly and effectively discharged, affecting the performance of the device. Summary of the invention

[0005] In order to solve the technical problems existing in the above-mentioned prior art, the present invention provides a combined industrial tablet computer, the purpose of which is to improve the cooling and heat dissipation effect of the tablet computer in an industrial environment, so that air can effectively flow through the electronic components inside the tablet to take away heat, thereby avoiding local overheating of the tablet computer and affecting the performance of the device.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a combined industrial tablet computer, comprising a tablet computer body, a protective shell arranged on the tablet computer body, the protective shell comprising a first shell and a second shell arranged on the back of the first shell, a heat dissipation component is arranged on the back of the protective shell, and the heat dissipation component is used to introduce air into the interior of the protective shell to take away the heat of the electronic components of the tablet computer body;

[0007] The heat dissipation assembly includes a heat dissipation cavity opened in the inner cavity of the first shell, an air inlet penetrating through the center of the second shell, air outlets opened on both sides of the first shell, a horizontal rod arranged on the back of the first shell, a sealing disk arranged on the outer wall of the horizontal rod, a ventilation groove opened on the inner wall of the second shell along the length direction of the horizontal rod, and the ventilation grooves are symmetrically arranged on both sides of the air inlet, a movable plate arranged in the ventilation groove, a connecting rod arranged between the sealing disk and the movable plate, a heat dissipation fan arranged between the air inlet and the first shell, and the heat dissipation fan is electrically connected to the tablet computer body, and the diameters of the annular filter and the sealing disk are the same as the inner diameter of the air inlet;

[0008] When the cooling fan is turned on, suction generates negative pressure, the sealing plate is located between the ventilation slots on both sides, and the ventilation slots on both sides are exposed, the movable plate is located at the front end of the ventilation slots, and air is drawn into the heat dissipation cavity from the air inlet along the ventilation slots on both sides; when the cooling fan is not turned on, the negative pressure stops, the sealing plate is located at the back of the ventilation slots, and the movable plate is located at the rear end of the ventilation slots.

[0009] By adopting the above technical solution, the cooling fan is controlled to start working through the tablet computer body. The cooling fan suction generates negative pressure to make the sealing plate move toward the cooling fan, and pushes the connecting rod to drive the movable plate to move to the rear end of the ventilation slot, so that air is drawn into the heat dissipation cavity from the air inlet along the ventilation slots on both sides, so that the air can effectively flow through the electronic components inside the tablet, and finally pass out from the air outlets on both sides to take away the heat of the electronic components of the tablet computer body.

[0010] Furthermore, the heat dissipation assembly also includes an annular filter screen arranged in the air inlet, and the diameters of the annular filter screen and the sealing disk are the same as the inner diameter of the air inlet, and a first reset member is arranged between the annular filter screen and the sealing disk, and the first reset member is symmetrically arranged in two groups, and the first reset member is in a stretched state when the heat dissipation fan is turned on, and is in an initial state when the heat dissipation fan is not turned on.

[0011] By adopting the above technical scheme, the first reset member can be a spring, which is convenient for driving the sealing disk to reset after the cooling fan stops working, so as to cut off the communication between the air inlet and the heat dissipation chamber; the annular filter is used to filter the air entering the air inlet. When the cooling fan stops working, the sealing disk approaches the annular filter under the reset action of the first reset member. When the sealing disk moves to cover the ventilation slots on both sides, as the movable plate continues to move in the ventilation slot to the rearmost end of the ventilation slot, the air between the sealing disk and the annular filter forms pressure, which washes away the dust on the side of the annular filter away from the sealing disk.

[0012] Furthermore, a fixing rod is symmetrically arranged at one end of the horizontal rod close to the first shell, and is connected to the inner wall of the second shell via the fixing rod. An end of the horizontal rod away from the first shell extends to the back of the annular filter.

[0013] By adopting the above technical solution, the horizontal rod is fixed in the air inlet, thereby improving the stability of the sealing disk when it moves horizontally along the axis of the horizontal rod.

[0014] Furthermore, a self-cleaning component is provided on the back of the heat dissipation component, and the self-cleaning component is used to self-clean and remove dust from the annular filter screen during the process of the sealing disk returning to its original position after the heat dissipation fan stops working;

[0015] The self-cleaning component includes a first slide groove opened on the outer wall of the horizontal rod, and a strip slider arranged on the inner wall of the sealing disk. The strip slider is slidably connected in the first slide groove, and the length of the strip slider is equal to the distance between the annular filter and the sealing disk when the cooling fan is not turned on.

[0016] By adopting the above technical solution, when the first reset member drives the sealing disk to reset, the strip slider moves synchronously in the first slide groove until the first reset member stops moving after being completely reset.

[0017] Furthermore, the self-cleaning component also includes a rotating cylinder arranged on the inner wall of the annular filter through a bearing, and the rotating cylinder extends out of the back of the annular filter, a connecting plate symmetrically arranged on the outer wall of the rotating cylinder, and a brush strip arranged on the outer wall of the connecting plate, and the brush strip is located between the connecting plate and the annular filter, and is used to clean dust or impurities attached to the surface of the annular filter.

[0018] By adopting the above technical solution, the rotating cylinder can rotate under the connection of the bearing, so that the connecting plate can rotate with the brush bar to brush the dust or impurities attached to the surface of the annular filter screen, and flush the dust or impurities when the auxiliary sealing disk is reset.

[0019] Furthermore, a second slide groove is provided on the outer wall of the horizontal rod, a semi-arc slide plate is provided on the top of the second slide groove, and the length of the semi-arc slide plate is half of the total length of the second slide groove, a spiral guide groove is provided on the outer wall of the semi-arc slide plate, and a transmission rod is provided on the inner wall of the rotating cylinder; when the cooling fan is turned on, the semi-arc slide plate is located at the front end of the second slide groove, that is, the transmission rod is located at the rear end of the guide groove; when the cooling fan is not turned on, the semi-arc slide plate is located at the rear end of the second slide groove, that is, the transmission rod is located at the front end of the guide groove.

[0020] By adopting the above technical solution, after the cooling fan stops working, the strip slider is reset together with the sealing disk, and pushes the semi-arc slider to reset, so that the transmission rod rotates 180° under the guidance of the guide groove, thereby allowing the rotating cylinder to drive the connecting plate to rotate 180°, so that the two brush strips can brush the dust or impurities attached to the surface of the annular filter.

[0021] Furthermore, a traction rope is provided between the strip-shaped sliding block and the semi-arc-shaped sliding block. The traction rope is in a stretched state when the cooling fan is turned on, and is in a relaxed state when the cooling fan is not turned on.

[0022] By adopting the above technical solution, after the cooling fan is turned on, the strip slider moves in the first slide groove along with the sealing plate, and the traction rope is first straightened and then the semi-arc slide plate is moved in the second slide groove through the traction rope, so that the brush bar can brush the dust or impurities attached to the surface of the annular filter when the cooling fan is turned on, so as to avoid affecting the heat dissipation effect of the tablet computer body.

[0023] Furthermore, a matching component is provided on the first shell, and the matching component is used to make the heat dissipation cavity in the first shell communicate with the air outlet when the heat dissipation fan is turned on; and to separate the heat dissipation cavity in the first shell from the air outlet after the heat dissipation fan stops working;

[0024] The matching component includes a rotating disk arranged on the back of the cooling fan, a convergence groove opened on the wall of the rotating disk, and the convergence grooves are two symmetrical about the center of the rotating disk, a telescopic member symmetrically arranged between the rotating disk and the tablet computer body, and the telescopic member and the convergence groove are slidably connected, a compensation block symmetrically arranged in the telescopic member up and down, and a second reset member arranged between the inner wall of the telescopic member and the outer wall of the compensation block.

[0025] By adopting the above technical scheme, the second reset member can be a spring or a spring sheet, so that the compensation block can be completely retracted into the telescopic member after pressure is applied, and the second reset member is in a compressed state after the cooling fan stops working; after the cooling fan is turned on, under the action of centrifugal force, the telescopic member can extend outward along the convergence groove, and under the reset action of the second reset member, the compensation block extends out from the telescopic member, so that the two groups of telescopic members and the compensation block can form a complete "circle"; when the tablet computer body is cooled down and reaches the preset suitable temperature of the device, the cooling fan is controlled by the tablet computer body to rotate half a circle in the opposite direction, so that the telescopic member can be retracted inward along the convergence groove, and the compensation block is retracted into the telescopic member.

[0026] Furthermore, a limiting rod is provided on one side of the telescopic part close to the air outlet, limiting plates are provided on the top and bottom of the limiting rod, and the outer wall of the limiting plate is fixedly connected to the inner wall of the first shell, and a blocking block is movably sleeved on the outer wall of the limiting rod, and the blocking block is located on the inner side of the air outlet.

[0027] By adopting the above technical solution, the shielding block is used to shield the air outlet after the cooling fan stops working, thereby reducing the accumulation of dust inside the tablet computer body, thereby reducing the loss and wear of electronic components and extending the service life of the tablet computer body.

[0028] Furthermore, a third reset member is arranged between the shielding block and the limiting plate at the top, and when the heat dissipation cavity in the first shell is connected with the air outlet, the third reset member is in a compressed state; an inclined block is arranged on the side of the shielding block close to the telescopic member, a driving rod is arranged between the inclined block and the telescopic member, and the driving rod is slidably connected to the inner wall of the first shell.

[0029] By adopting the above technical solution, the third reset member can be a spring, so that after the cooling fan stops working, the blocking block moves downward to block the air outlet, and the blocking block drives the inclined block to move synchronously, so that the inclined block pushes the driving rod to reset; after the cooling fan starts working, the outer wall of the telescopic member and the compensation block pushes the driving rod to move toward the inclined surface of the inclined block, so that the end of the driving rod pushes the inclined block to move upward, exposing the air outlet to achieve communication between the air inlet, the heat dissipation cavity in the first shell and the air outlet, thereby effectively taking away the heat from the electronic components of the tablet computer body.

[0030] Beneficial effects of the present invention:

[0031] 1. The cooling fan is controlled to start working through the tablet computer body. The cooling fan generates suction and negative pressure to move the sealing plate toward the cooling fan, and pushes the connecting rod to drive the moving plate to move to the rear end of the ventilation slot, so that air is drawn into the heat dissipation cavity from the air inlet along the ventilation slots on both sides, so that the air can effectively flow through the electronic components inside the tablet, and finally pass out from the air outlets on both sides to take away the heat of the electronic components of the tablet computer body.

[0032] 2. When the strip-shaped slider moves in the first slide groove along with the sealing plate, the traction rope is first straightened and then the semi-arc-shaped slider is moved in the second slide groove along with the traction rope, so that the transmission rod rotates 180° under the guidance of the guide groove, thereby the rotating cylinder drives the connecting plate to rotate 180°, so that when the cooling fan is turned on, the brush strip can brush the dust or impurities attached to the surface of the annular filter to avoid affecting the cooling effect of the tablet computer body, and the annular filter can be self-cleaned again after the cooling fan stops working.

[0033] 3. After the cooling fan is turned on, under the action of centrifugal force, the telescopic member can extend outward along the convergence groove, and under the resetting action of the second resetting member, the outer wall of the telescopic member and the compensation block pushes the driving rod to move toward the inclined surface of the inclined block, so that the end of the driving rod pushes the inclined block to move upward, exposing the air outlet to achieve communication between the air inlet, the heat dissipation cavity in the first shell and the air outlet, effectively taking away the heat of the electronic components of the tablet computer body, and when the tablet computer body is cooled down and reaches the preset suitable temperature of the device, the shielding block moves downward to shield the air outlet, thereby reducing the accumulation of dust inside the tablet computer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the whole first-view when the air outlet of the present invention is opened;

[0035] Figure 2 A second perspective schematic diagram of the overall air outlet of the present invention when it is opened;

[0036] Figure 3 is a schematic cross-sectional structural diagram of the second housing of the present invention;

[0037] Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0038] Figure 5 It is a structural schematic diagram of the sealing disk of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the first chute of the present invention;

[0040] Figure 7 It is a schematic diagram of the traction rope of the present invention in a straightened state;

[0041] Figure 8 It is a schematic diagram of the cross-section structure of the rotating drum of the present invention;

[0042] Fig. 9 It is a structural schematic diagram of the guide groove of the present invention;

[0043] Fig.10 For the present invention Figure 8 The enlarged schematic diagram of point B in the middle;

[0044] Fig.11 is a schematic cross-sectional structural diagram of the first shell of the present invention;

[0045] Fig.12 It is a structural schematic diagram of the telescopic member of the present invention;

[0046] Fig.13 It is a structural schematic diagram of the convergence groove of the present invention;

[0047] Fig.14For the present invention Fig.13 The enlarged schematic diagram at C in the middle;

[0048] Fig.15 It is a schematic diagram of the third reset member of the present invention when stretched.

[0049] In the figure:

[0050] 1. Tablet computer body; 2. Protective shell; 21. First shell; 22. Second shell; 3. Heat dissipation assembly; 31. Air inlet; 32. Air outlet; 33. Ring filter; 34. Horizontal rod; 35. Sealing plate; 36. Ventilation slot; 37. Moving plate; 38. Connecting rod; 39. Cooling fan; 310. First reset member; 311. Fixed rod; 4. Self-cleaning assembly; 41. First slide slot; 42. Strip slider; 43. Rotating cylinder; 44. Connecting plate; 45. Brush strip; 46. Second slide groove; 47. Semi-arc slide plate; 48. Guide groove; 49. Transmission rod; 410. Traction rope; 5. Matching assembly; 51. Rotating disk; 52. Converging groove; 53. Telescopic member; 54. Compensation block; 55. Second reset member; 56. Limit rod; 57. Limit plate; 58. Blocking block; 59. Third reset member; 510. Bevel block; 511. Drive rod. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0052] Example 1, reference Figure 1-6 , which is the first embodiment of the present invention, provides a combined industrial tablet computer, including a tablet computer body 1, a protective shell 2 covering the tablet computer body 1, the protective shell 2 includes a first shell 21 and a second shell 22 detachably mounted on the back of the first shell 21, a heat dissipation component 3 is installed on the back of the protective shell 2, and the heat dissipation component 3 is used to introduce air into the interior of the protective shell 2 to take away the heat of the electronic components of the tablet computer body 1.

[0053] The heat dissipation assembly 3 includes a heat dissipation cavity opened in the inner cavity of the first shell 21, an air inlet 31 penetrating through the center of the second shell 22, air outlets 32 opened on both sides of the first shell 21, an annular filter 33 installed in the air inlet 31, a horizontal rod 34 located on the back of the first shell 21, a sealing disk 35 movably mounted on the outer wall of the horizontal rod 34, a ventilation groove 36 is opened on the inner wall of the second shell 22 along the length direction of the horizontal rod 34, and the ventilation grooves 36 are symmetrically opened on both sides of the air inlet 31, a movable plate 37 slidably connected in the ventilation groove 36, a connecting rod 38 fixedly connected between the sealing disk 35 and the movable plate 37, a heat dissipation fan 39 installed between the air inlet 31 and the first shell 21, and the heat dissipation fan 39 is electrically connected to the tablet computer body 1, and the diameters of the annular filter 33 and the sealing disk 35 are the same as the inner diameter of the air inlet 31.

[0054] When the cooling fan 39 is turned on, suction generates negative pressure, the sealing disk 35 is located between the ventilation slots 36 on both sides, and the ventilation slots 36 on both sides are exposed, the movable plate 37 is located at the front end of the ventilation slots 36, and the air is filtered by the annular filter 33 and then drawn into the cooling cavity from the air inlet 31 along the ventilation slots 36 on both sides; when the cooling fan 39 is not turned on, the negative pressure stops, the sealing disk 35 is located at the back of the ventilation slots 36, and the movable plate 37 is located at the rear end of the ventilation slots 36.

[0055] Specifically, the tablet computer body 1 adopts an industrial applicable computer body in the prior art. The specific structural composition and working principle are not particularly limited here. As long as it can include a touch screen, a central processing unit (CPU), an internal memory and a battery, it can complete basic interactive functions, execute computing tasks and control the cooling fan 39.

[0056] Specifically, the main components of the cooling fan 39 are fan blades, a micro motor, bearings and a controller. The fan controller monitors the temperature inside the tablet computer body 1 and adjusts the speed of the cooling fan 39 as needed. This can be configured and adjusted through the BIOS settings on the computer motherboard or the software in the operating system. The user can adjust the speed of the cooling fan 39 as needed to keep the temperature of the tablet computer body 1 within an appropriate range.

[0057] The control circuit of the tablet computer body 1 controls the current to pass through the stator coil to generate a magnetic field. This magnetic field interacts with the magnet on the rotor, causing the rotor to start rotating. The rotation of the rotor drives the fan blades to rotate together, thereby generating negative pressure airflow, which helps to discharge heat from the tablet computer body 1 and keep the temperature of the tablet computer body 1 within an appropriate range.

[0058] Specifically, the cooling fan 39 is controlled to start working through the tablet computer body 1, and the cooling fan 39 generates suction to generate negative pressure, causing the sealing disk 35 to move toward the cooling fan 39, and pushing the connecting rod 38 to drive the movable plate 37 to move to the rear end of the ventilation slot 36, so that the air filtered by the annular filter 33 is drawn into the heat dissipation cavity from the air inlet 31 along the ventilation slots 36 on both sides, so that the air can effectively flow through the electronic components inside the tablet, and finally pass out from the air outlets 32 on both sides to take away the heat of the electronic components of the tablet computer body 1.

[0059] Reference Figure 4 A first reset member 310 is connected between the annular filter screen 33 and the sealing disk 35, and the first reset member 310 is symmetrically arranged in two groups. When the cooling fan 39 is turned on, the first reset member 310 is in a stretched state, and when the cooling fan 39 is not turned on, the first reset member 310 is in an initial state.

[0060] Specifically, the first reset member 310 can be a spring, which is convenient for driving the sealing disk 35 to reset after the cooling fan 39 stops working, so as to cut off the communication between the air inlet 31 and the cooling chamber; when the cooling fan 39 stops working, the sealing disk 35 approaches the annular filter 33 under the reset action of the first reset member 310, and when the sealing disk 35 moves to cover the ventilation slots 36 on both sides, as the movable plate 37 continues to move in the ventilation slots 36 to the rearmost end of the ventilation slots 36, the air between the sealing disk 35 and the annular filter 33 forms pressure, which washes away the dust on the side of the annular filter 33 away from the sealing disk 35.

[0061] Reference Figure 6 The end of the horizontal rod 34 close to the first shell 21 is symmetrically connected to the fixing rod 311, and is connected to the inner wall of the second shell 22 through the fixing rod 311. The end of the horizontal rod 34 away from the first shell 21 extends to the back of the annular filter 33.

[0062] Specifically, the horizontal rod 34 is fixed in the air inlet 31 , thereby improving the stability of the sealing disk 35 when it moves horizontally along the axis of the horizontal rod 34 .

[0063] Example 2, reference Figure 1-10 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that a self-cleaning component 4 is installed on the back of the heat dissipation component 3. The self-cleaning component 4 is used to self-clean and remove dust from the annular filter 33 during the process of the sealing disk 35 returning to its original position after the heat dissipation fan 39 stops working.

[0064] The self-cleaning component 4 includes a first slide groove 41 opened on the outer wall of the horizontal rod 34, and a strip slider 42 connected to the inner wall of the sealing disk 35, the strip slider 42 is slidably connected in the first slide groove 41, and the length of the strip slider 42 is equal to the distance between the annular filter 33 and the sealing disk 35 when the cooling fan 39 is not turned on; it also includes a rotating cylinder 43 rotatably connected to the inner wall of the annular filter 33 through a bearing, and the rotating cylinder 43 extends out of the back of the annular filter 33, a connecting plate 44 symmetrically inserted on the outer wall of the rotating cylinder 43, and a brush strip 45 installed on the outer wall of the connecting plate 44, and the brush strip 45 is located between the connecting plate 44 and the annular filter 33, for cleaning dust or impurities attached to the surface of the annular filter 33.

[0065] Specifically, during the process of the first reset member 310 driving the sealing disk 35 to reset, the strip slider 42 moves synchronously in the first slide groove 41 until the first reset member 310 stops moving after being completely reset; the rotating cylinder 43 can rotate under the connection of the bearing, so that the connecting plate 44 can rotate with the brush strip 45 to brush the dust or impurities attached to the surface of the annular filter 33, and flush the dust or impurities when the auxiliary sealing disk 35 is reset.

[0066] Reference Figure 6-10 A second slide groove 46 is provided on the outer wall of the horizontal rod 34, and a semi-arc slide plate 47 is slidably connected to the top of the second slide groove 46, and the length of the semi-arc slide plate 47 is half of the total length of the second slide groove 46, and a spiral guide groove 48 is provided on the outer wall of the semi-arc slide plate 47, and a transmission rod 49 is connected to the inner wall of the rotating cylinder 43; when the cooling fan 39 is turned on, the semi-arc slide plate 47 is located at the front end of the second slide groove 46, that is, the transmission rod 49 is located at the rear end of the guide groove 48; when the cooling fan 39 is not turned on, the semi-arc slide plate 47 is located at the rear end of the second slide groove 46, that is, the transmission rod 49 is located at the front end of the guide groove 48.

[0067] Specifically, after the cooling fan 39 stops working, the strip slider 42 is reset together with the sealing disk 35, and pushes the semi-arc slider 47 to reset, so that the transmission rod 49 rotates 180° under the guidance of the guide groove 48, thereby allowing the rotating cylinder 43 to drive the connecting plate 44 to rotate 180°, so that the two brush strips 45 can brush the dust or impurities attached to the surface of the annular filter 33.

[0068] Reference Figure 7 A traction rope 410 is connected between the strip slider 42 and the semi-arc slider 47. The traction rope 410 is stretched when the cooling fan 39 is turned on, and is relaxed when the cooling fan 39 is not turned on.

[0069] Specifically, after the cooling fan 39 is turned on, the strip-shaped slider 42 moves along with the sealing plate 35 in the first slide groove 41, first straightens the traction rope 410, and then the semi-arc-shaped slider 47 moves in the second slide groove 46 through the traction rope 410, so that when the cooling fan 39 is turned on, the brush strip 45 brushes the dust or impurities attached to the surface of the annular filter 33 to avoid affecting the cooling effect of the tablet computer body 1. The rest of the structure is the same as that of the first embodiment.

[0070] Example 3, reference Figure 1-15 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a matching component 5 is installed on the first shell 21, and the matching component 5 is used to connect the heat dissipation cavity in the first shell 21 with the air outlet 32 ​​when the heat dissipation fan 39 is turned on; after the heat dissipation fan 39 stops working, the heat dissipation cavity in the first shell 21 is separated from the air outlet 32.

[0071] The mating component 5 includes a rotating disk 51 connected to the back of the cooling fan 39, a convergence groove 52 opened on the wall of the rotating disk 51, and the convergence grooves 52 are two symmetrical about the center of the rotating disk 51, a telescopic member 53 symmetrically arranged between the rotating disk 51 and the tablet computer body 1, and the telescopic member 53 and the convergence groove 52 are slidably connected, a compensation block 54 symmetrically slidably connected in the telescopic member 53 up and down, and a second reset member 55 connected between the inner wall of the telescopic member 53 and the outer wall of the compensation block 54.

[0072] Specifically, the second reset member 55 can be a spring or a spring sheet, so that the compensation block 54 can be completely retracted into the telescopic member 53 after pressure is applied, and the second reset member 55 is in a compressed state after the cooling fan 39 stops working; after the cooling fan 39 is turned on, under the action of centrifugal force, the telescopic member 53 can extend outward along the convergence groove 52, and under the reset action of the second reset member 55, the compensation block 54 extends out from the telescopic member 53, so that the two groups of telescopic members 53 and the compensation block 54 can form a complete "circle"; when the tablet computer body 1 is cooled down and reaches the preset suitable temperature of the device, the cooling fan 39 is controlled by the tablet computer body 1 to rotate half a circle in the opposite direction, so that the telescopic member 53 can be retracted inward along the convergence groove 52, and the compensation block 54 is retracted into the telescopic member 53.

[0073] Reference Fig.14 A limiting rod 56 is provided on one side of the telescopic member 53 close to the air outlet 32, the top and bottom of the limiting rod 56 are connected to a limiting plate 57, and the outer wall of the limiting plate 57 is fixedly connected to the inner wall of the first shell 21, and a blocking block 58 is movably sleeved on the outer wall of the limiting rod 56, and the blocking block 58 is located on the inner side of the air outlet 32.

[0074] Specifically, the shielding block 58 is used to shield the air outlet 32 ​​after the cooling fan 39 stops working, thereby reducing the accumulation of dust inside the tablet computer body 1, thereby reducing the loss and wear of electronic components and extending the service life of the tablet computer body 1.

[0075] Reference Fig.14 and Fig.15 A third reset member 59 is connected between the shielding block 58 and the top limit plate 57. When the heat dissipation cavity in the first shell 21 is connected to the air outlet 32, the third reset member 59 is in a compressed state; a slanted block 510 is connected to the side of the shielding block 58 close to the telescopic member 53, and a driving rod 511 is provided between the slanted block 510 and the telescopic member 53, and the driving rod 511 is slidably connected to the inner wall of the first shell 21.

[0076] Specifically, the third reset member 59 can be a spring, so that after the cooling fan 39 stops working, the shielding block 58 moves downward to block the air outlet 32, and the shielding block 58 drives the inclined block 510 to move synchronously, so that the inclined block 510 pushes the driving rod 511 to reset; after the cooling fan 39 starts working, the outer wall of the telescopic member 53 and the compensation block 54 pushes the driving rod 511 to move toward the inclined surface of the inclined block 510, so that the end of the driving rod 511 pushes the inclined block 510 to move upward, exposing the air outlet 32 ​​to achieve the communication between the air inlet 31, the heat dissipation cavity in the first shell 21 and the air outlet 32, and effectively take away the heat of the electronic components of the tablet computer body 1. The rest of the structure is the same as that of Example 2.

[0077] Based on Examples 1-3, the working principle of the present invention is as follows:

[0078] S1: When the temperature of the tablet computer body 1 reaches the warning temperature and needs to be cooled down, the cooling fan 39 is controlled by the tablet computer body 1 to start working. The cooling fan 39 generates suction to generate negative pressure, causing the sealing disk 35 to move toward the cooling fan 39, and pushes the connecting rod 38 to drive the movable plate 37 to move to the rear end of the ventilation slot 36.

[0079] S2: At the same time, under the action of centrifugal force, the telescopic member 53 can extend outward along the focusing groove 52, and under the resetting action of the second resetting member 55, the outer wall of the telescopic member 53 and the compensation block 54 pushes the driving rod 511 to move toward the inclined surface of the inclined block 510, so that the end of the driving rod 511 pushes the inclined block 510 to move upward, and compresses the third resetting member 59, exposing the air outlet 32 ​​to realize the communication between the air inlet 31, the heat dissipation cavity in the first shell 21 and the air outlet 32, and the air flow takes away the heat of the electronic components of the tablet computer body 1.

[0080] S3: During the movement of the sealing disk 35, the strip slider 42 is driven to move synchronously. The strip slider 42 is connected by the traction rope 410, so that the semi-arc slide plate 47 moves to the rearmost end of the second slide groove 46 and the frontmost end of the second slide groove 46, so that the rotating cylinder 43 drives the connecting plate 44 to rotate 180°, so that the two brush strips 45 can brush the dust or impurities attached to the surface of the annular filter 33 to avoid affecting the heat dissipation effect of the tablet computer body 1.

[0081] S4: When the tablet computer body 1 reaches the appropriate temperature range, the cooling fan 39 is stopped first, and the sealing disk 35 is moved closer to the annular filter 33 under the resetting action of the first resetting member 310. When the sealing disk 35 moves to cover the ventilation slots 36 on both sides, as the movable plate 37 continues to move in the ventilation slots 36 to the rearmost end of the ventilation slots 36, the air between the sealing disk 35 and the annular filter 33 forms pressure, and the dust on the side of the annular filter 33 away from the sealing disk 35 is washed away.

[0082] S5: When the sealing disk 35 washes the dust off the annular filter screen 33, the semi-arc slide plate 47 moves to the front end of the second slide groove 46, so that the rotating cylinder 43 drives the connecting plate 44 to rotate 180 degrees in the opposite direction. The two brush strips 45 brush the dust or impurities attached to the surface of the annular filter screen 33 again.

[0083] S6: Then control the cooling fan 39 to rotate half a circle in the opposite direction, so that the telescopic member 53 can be retracted inward along the convergence groove 52, and the compensation block 54 is retracted into the telescopic member 53. Under the resetting action of the third resetting member 59, the blocking block 58 moves downward to block the air outlet 32, and the blocking block 58 drives the inclined block 510 to move synchronously, so that the inclined block 510 pushes the driving rod 511 to reset.

[0084] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A combined industrial tablet computer, comprising a tablet computer body (1), and a protective housing (2) disposed on the tablet computer body (1), characterized in that: The protective shell (2) comprises a first shell (21) and a second shell (22) arranged on the back of the first shell (21); a heat dissipation component (3) is arranged on the back of the protective shell (2); the heat dissipation component (3) is used to introduce air into the interior of the protective shell (2) to remove heat from electronic components of the tablet computer body (1); The heat dissipation assembly (3) comprises a heat dissipation cavity opened in the inner cavity of the first shell (21), an air inlet (31) penetrating through the center of the second shell (22), air outlets (32) opened on both sides of the first shell (21), a horizontal rod (34) arranged on the back of the first shell (21), a sealing plate (35) arranged on the outer wall of the horizontal rod (34), a ventilation groove (36) opened on the inner wall of the second shell (22) along the length direction of the horizontal rod (34), and the ventilation grooves (36) are symmetrically arranged on both sides of the air inlet (31), a movable plate (37) arranged in the ventilation groove (36), a connecting rod (38) arranged between the sealing plate (35) and the movable plate (37), and a heat dissipation fan (39) arranged between the air inlet (31) and the first shell (21), and the heat dissipation fan (39) is electrically connected to the tablet computer body (1); When the heat dissipation fan (39) is turned on, suction generates negative pressure, the sealing disk (35) is located between the ventilation slots (36) on both sides, and the ventilation slots (36) on both sides are exposed, the movable plate (37) is located at the front end of the ventilation slots (36), and air is drawn into the heat dissipation cavity from the air inlet (31) along the ventilation slots (36) on both sides; when the heat dissipation fan (39) is not turned on, the negative pressure stops, the sealing disk (35) is located at the back of the ventilation slots (36), and the movable plate (37) is located at the rear end of the ventilation slots (36).

2. The combined industrial tablet computer according to claim 1, characterized in that: The heat dissipation assembly (3) further comprises an annular filter screen (33) arranged in the air inlet (31), and the diameters of the annular filter screen (33) and the sealing disk (35) are both the same as the inner diameter of the air inlet (31), a first reset member (310) is arranged between the annular filter screen (33) and the sealing disk (35), and the first reset member (310) is symmetrically arranged in two groups, and the first reset member (310) is in a stretched state when the heat dissipation fan (39) is turned on, and is in an initial state when the heat dissipation fan (39) is not turned on.

3. The combined industrial tablet computer according to claim 2, characterized in that: A fixing rod (311) is symmetrically arranged at one end of the horizontal rod (34) close to the first shell (21), and is connected to the inner wall of the second shell (22) via the fixing rod (311). An end of the horizontal rod (34) away from the first shell (21) extends to the back of the annular filter screen (33).

4. The combined industrial tablet computer according to claim 3, characterized in that: A self-cleaning component (4) is provided on the back of the heat dissipation component (3), and the self-cleaning component (4) is used to self-clean and remove dust from the annular filter screen (33) during the process of the sealing disk (35) returning to its original position after the heat dissipation fan (39) stops working; The self-cleaning component (4) includes a first slide groove (41) opened on the outer wall of the horizontal rod (34), and a strip slider (42) arranged on the inner wall of the sealing disk (35), the strip slider (42) is slidably connected in the first slide groove (41), and the length of the strip slider (42) is equal to the distance between the annular filter (33) and the sealing disk (35) when the cooling fan (39) is not turned on.

5. The combined industrial tablet computer according to claim 4, characterized in that: The self-cleaning component (4) further comprises a rotating cylinder (43) arranged on the inner wall of the annular filter (33) via a bearing, the rotating cylinder (43) extending out of the back of the annular filter (33), a connecting plate (44) symmetrically arranged on the outer wall of the rotating cylinder (43), and a brush strip (45) arranged on the outer wall of the connecting plate (44), the brush strip (45) being located between the connecting plate (44) and the annular filter (33) and being used for cleaning dust or impurities attached to the surface of the annular filter (33).

6. The combined industrial tablet computer according to claim 5, characterized in that: A second slide groove (46) is provided on the outer wall of the horizontal rod (34), a semi-arc slide plate (47) is provided on the top of the second slide groove (46), and the length of the semi-arc slide plate (47) is half of the total length of the second slide groove (46), a spiral guide groove (48) is provided on the outer wall of the semi-arc slide plate (47), and a transmission rod (49) is provided on the inner wall of the rotating cylinder (43); when the cooling fan (39) is turned on, the semi-arc slide plate (47) is located at the front end of the second slide groove (46), that is, the transmission rod (49) is located at the rear end of the guide groove (48); when the cooling fan (39) is not turned on, the semi-arc slide plate (47) is located at the rear end of the second slide groove (46), that is, the transmission rod (49) is located at the front end of the guide groove (48).

7. The combined industrial tablet computer according to claim 6, characterized in that: A traction rope (410) is provided between the strip-shaped slider (42) and the semi-arc-shaped slider (47). The traction rope (410) is in a stretched state when the cooling fan (39) is turned on, and is in a relaxed state when the cooling fan (39) is not turned on.

8. The combined industrial tablet computer according to claim 1, characterized in that A matching component (5) is provided on the first shell (21), and the matching component (5) is used to make the heat dissipation cavity in the first shell (21) communicate with the air outlet (32) when the heat dissipation fan (39) is turned on; and to separate the heat dissipation cavity in the first shell (21) from the air outlet (32) after the heat dissipation fan (39) stops working; The matching component (5) comprises a rotating disk (51) arranged on the back of the cooling fan (39), a convergence groove (52) provided on the wall of the rotating disk (51), wherein the convergence grooves (52) are two symmetrical ones about the center of the rotating disk (51), a telescopic member (53) symmetrically arranged between the rotating disk (51) and the tablet computer body (1), wherein the telescopic member (53) and the convergence groove (52) are slidably connected, a compensation block (54) symmetrically arranged in the telescopic member (53) from top to bottom, and a second reset member (55) arranged between the inner wall of the telescopic member (53) and the outer wall of the compensation block (54).

9. The combined industrial tablet computer according to claim 8, characterized in that: A limiting rod (56) is provided on one side of the telescopic member (53) close to the air outlet (32); limiting plates (57) are provided on the top and bottom of the limiting rod (56); and the outer wall of the limiting plate (57) is fixedly connected to the inner wall of the first shell (21); a blocking block (58) is movably sleeved on the outer wall of the limiting rod (56), and the blocking block (58) is located on the inner side of the air outlet (32).

10. The combined industrial tablet computer according to claim 9, characterized in that: A third reset member (59) is arranged between the shielding block (58) and the limiting plate (57) at the top, and when the heat dissipation cavity in the first shell (21) is connected to the air outlet (32), the third reset member (59) is in a compressed state; an inclined block (510) is arranged on the side of the shielding block (58) close to the telescopic member (53), a driving rod (511) is arranged between the inclined block (510) and the telescopic member (53), and the driving rod (511) is slidably connected to the inner wall of the first shell (21).

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