CN213276457U

CN213276457U - Waterproof and moistureproof touch integrated machine

Info

Publication number: CN213276457U
Application number: CN202022737988.3U
Authority: CN
Inventors: 邓华良; 曾春辉; 卢芳洪
Original assignee: Guangzhou Yichuang Electronic Technology Co ltd
Current assignee: Guangzhou Yichuang Electronic Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-05-25
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a dampproofing and waterproofing touch all-in-one, it includes the host computer body, and a plurality of louvres have been seted up to the host computer body, and louvre department is provided with the fan, and the air exit of fan is towards the louvre, and the air exit department of fan is provided with the layer and the fan exhaust air that absorb water that is arranged in absorbing vapor in the air and passes the layer that absorbs water, and the fan is coupled with humidity detection circuitry, and humidity detection circuitry includes: humidity detection unit, humidity comparison unit and switch unit. The electronic component air-drying device has the advantages that dry air penetrates through the water absorbing layer and enters the shell, and the dry air-dries wet electronic components in the shell; when the humidity of the electronic component in the shell is reduced, the humidity detection circuit controls the fan to stop rotating.

Description

Waterproof and moistureproof touch integrated machine

Technical Field

The application relates to the technical field of touch all-in-one machines, in particular to a waterproof and moistureproof touch all-in-one machine.

Background

The touch integrated machine is a touch product which binds a touch screen and related software together and is matched with an outer package for inquiry purposes, and has the advantages of firmness, durability, high reaction speed, space saving, easy communication and the like; the touch all-in-one machine truly integrates touch and control, and greatly improves the working efficiency of people.

In the prior art, a touch all-in-one machine integrates electronic components such as a touch screen, a mainboard, a memory, a hard disk, a display card and the like, all the electronic components are installed in the same shell, and the surface of the shell is usually provided with heat dissipation holes for heat dissipation of the electronic components; the touch all-in-one machine is exposed in the air when in use or idle.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the touch all-in-one exposes in the air for a long time, and when meetting moist weather, inside steam in the air easily entered into the casing by the louvre for electronic components surface is moist, and then when the touch all-in-one circular telegram, easily leads to electronic components to burn out.

SUMMERY OF THE UTILITY MODEL

In order to make the inside electronic components of casing be difficult for burning out when leading to the circular telegram because of the humidity, increase the life of touch all-in-one, this application provides a dampproofing and waterproofing touch all-in-one.

The application provides a pair of dampproofing and waterproofing touch all-in-one. The following technical scheme is adopted:

the utility model provides a dampproofing and waterproofing touch all-in-one, includes the host computer body, a plurality of louvres have been seted up to the host computer body, louvre department is provided with the fan, the air exit of fan is towards the louvre, the air exit department of fan is provided with the layer that absorbs water that is arranged in absorbing vapor in the air just fan exhaust air passes the layer that absorbs water, the fan is coupled with humidity detection circuitry, humidity detection circuitry includes:

the humidity detection unit is used for detecting the humidity of the surface of the electronic component in the shell and sending a humidity detection signal;

the humidity comparison unit is coupled with the humidity detection unit and is provided with a humidity reference value so as to output a humidity comparison signal when the humidity detection signal is greater than the humidity reference value;

and the switch unit is coupled with the humidity comparison unit, is connected in series in the power supply loop of the fan and is connected in series in the power supply loop of the fan so as to receive the humidity comparison signal and send out a switch signal to control the fan to start.

By adopting the technical scheme, when wet weather occurs, water vapor in the air enters the shell through the heat dissipation holes, the humidity detection unit detects the humidity in the shell in real time and sends a humidity detection signal, when the time that the touch all-in-one machine is idle in the wet air is prolonged, the humidity detection signal sent by the humidity detection unit is increased, when the humidity detection signal is greater than a humidity reference value, the humidity comparison unit sends a humidity comparison signal to the switch unit, the switch unit receives the humidity comparison signal and sends a switch signal to control the fan to start, the fan rotates and blows the air to the water absorption layer, after the water absorption layer absorbs the water vapor in the air, the drier air passes through the water absorption layer and enters the shell, and the drier air dries the wet electronic components in the shell; when the humidity of the electronic components in the shell is reduced, the humidity detection circuit controls the fan to stop rotating, so that the electronic components in the shell are not easy to burn out when powered on due to humidity, and the service life of the touch all-in-one machine is prolonged.

Optionally, the humidity detection unit comprises a humidity sensitive resistor RS, and the humidity sensitive resistor RS is installed in the shell and close to the electronic component in the shell.

Through adopting above-mentioned technical scheme, the moisture sensitive material absorption moisture in the air of moisture sensitive resistance RS through its surface and lead to resistance value itself to change, and moisture sensitive resistance RS installs the setting of being close to electronic components department in the casing for moisture sensitive resistance RS changes and detects electronic components in the casing, and the testing result is comparatively accurate.

Optionally, one end of the humidity sensing resistor RS is coupled to the power supply voltage VCC, the other end of the humidity sensing resistor RS is connected in series with a first resistor R1, and the other end of the first resistor R1 is grounded.

Through adopting above-mentioned technical scheme, when the inside humidity of casing increased, the resistance of wet resistance RS reduced, and then made the voltage that wet resistance RS both ends divide reduce, and the humidity detection signal grow that wet resistance RS and first resistance R1's connected node sent. When the humidity in the shell is reduced, the resistance value of the humidity-sensitive resistor RS is increased, so that the voltage divided at the two ends of the humidity-sensitive resistor RS is increased, and a humidity detection signal sent by a connection node of the humidity-sensitive resistor RS and the first resistor R1 is reduced; thereby realizing the function of humidity detection.

Optionally, the humidity comparing unit includes a comparator N1, a first signal input terminal of the comparator N1 is coupled to a connection node between the humidity sensing resistor RS and the first resistor R1, a second signal input terminal of the comparator N1 is connected to the humidity reference value through a second resistor R2, and a signal output terminal of the comparator N1 is coupled to the switching unit.

Through adopting above-mentioned technical scheme, when the humidity detected signal that the first signal input part of comparator N1 received is greater than the humidity reference value of second signal input part, the signal output part output humidity comparison signal of comparator N1 to the switch unit, when the humidity detected signal that the first signal input part of comparator N1 received is less than the humidity reference value of second signal input part, the signal output part output low level signal of comparator N1 to the switch unit, realize the high low comparative function of humidity in the casing.

Optionally, the humidity comparing unit further includes a third resistor R3 and a fourth resistor R4, one end of the third resistor R3 is coupled to the power voltage VCC, the other end of the third resistor R3 is coupled to the fourth resistor R4, the other end of the fourth resistor R4 is grounded, and a second signal input end of the comparator N1 is coupled to a connection node between the third resistor R3 and the fourth resistor R4.

By adopting the above technical scheme, the connection node of the third resistor R3 and the fourth resistor R4 is coupled to the second signal input end of the comparator N1, so that the voltage value of the second signal input end of the comparator N1 is stable, and further a reference signal is provided for the humidity detection signal, and a reference comparison value is provided for the judgment of the humidity degree in the housing.

Optionally, the switching unit includes a transistor Q1, a base of the transistor Q1 is coupled to the signal output terminal of the comparator N1, a collector of the transistor Q1 is coupled to the power voltage VCC, and an emitter of the transistor Q1 is grounded.

By adopting the technical scheme, when the base electrode of the triode Q1 receives the humidity comparison signal sent by the comparator N1, the base electrode of the triode Q1 is converted from low level to high level, so that the triode Q1 is conducted, the switch unit sends a switch signal, and the fan is started; when the base of the triode Q1 does not receive the humidity comparison signal sent by the comparator N1, the base of the triode Q1 maintains the low-frequency state, so that the switch unit does not send the switch signal, and the fan is not powered.

Optionally, the switch unit further includes a relay KM1, one end of the relay KM1 is coupled to a collector of the transistor Q1, the other end of the relay KM1 is coupled to the power voltage VCC, the relay KM1 includes a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in the power supply loop of the fan.

By adopting the technical scheme, when the triode Q1 is conducted, the second relay KM1 is conducted to further enable the normally open contact switch KM1-1 to be closed, the fan is started, when the triode Q1 is converted from a high level to a low level, the normally open contact switch KM1-1 is converted from a closed state to a disconnected state, a power supply loop of the fan is not conducted, and therefore the fan is energy-saving.

Optionally, the humidity detection circuit further includes a warning unit, the warning unit includes a light emitting diode D1, the light emitting diode D1 is installed on the surface of the housing, an anode of the light emitting diode D1 is coupled to an emitter of the transistor Q1, and a cathode of the light emitting diode D1 is grounded.

Through adopting above-mentioned technical scheme, when triode Q1 switched on, emitting diode D1 sent light in order to warn the staff comparatively moist and the fan is air-drying the moist electronic components in the casing this moment in the casing, can further protect or drying process the touch all-in-one after the staff receives warning signal, increase the air-dry speed of touch all-in-one, emitting diode D1 installs the setting at the casing surface, makes things convenient for the staff to discover that the touch all-in-one is in moist state.

Optionally, the water absorption layer comprises a mesh bag and a plurality of activated carbon particles filled in the mesh bag, and gaps through which air can pass are left between the activated carbon particles.

Through adopting above-mentioned technical scheme, it is a plurality of leave the setting in the clearance that can let the air pass between the active carbon granule for the fan blows into the steam in net bag and the air with the air and is adsorbed by the active carbon, and then dry air passes the net bag and enters into in the casing, has realized the drying of humid air and with the function that dry back air blows into in the casing.

Optionally, a limiting frame is fixed to one end face of the fan, facing the heat dissipation holes, the limiting frame is arranged around a shell of the fan and one end of the limiting frame is provided with an opening, and the mesh bag is inserted into the limiting frame and clamped with the limiting frame.

Through adopting above-mentioned technical scheme, spacing frame's setting plays limiting displacement to the water absorption layer for the layer of absorbing water is difficult for breaking away from the air exit department of fan, and the net bag is inserted and is located spacing frame in and with the setting of spacing frame mutual joint, makes things convenient for the staff to absorb the change of water layer.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the water absorption layer absorbs water vapor in the air, the drier air passes through the water absorption layer and enters the shell, and the drier air dries the wet electronic components in the shell; when the humidity of the electronic components in the shell is reduced, the humidity detection circuit controls the fan to stop rotating, so that the electronic components in the shell are not easily burnt out due to humidity when being electrified, and the service life of the touch all-in-one machine is prolonged;

2. after receiving the warning signal, the worker can further protect or dry the touch all-in-one machine, the air drying speed of the touch all-in-one machine is increased, and the light emitting diode D1 is arranged on the surface of the shell, so that the worker can find that the touch all-in-one machine is in a wet state conveniently;

3. the fan blows air into the grid bag and water vapor in the air is adsorbed by the activated carbon, and then dry air passes through the grid bag and enters the shell, so that the functions of drying damp air and blowing the dried air into the shell are realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic structural diagram of the main body of the present embodiment;

FIG. 3 is an enlarged view of A in FIG. 2;

fig. 4 is a circuit diagram of the humidity detection circuit in the present embodiment.

Description of reference numerals: 1. a support frame; 2. a main body; 21. a housing; 211. heat dissipation holes; 212. air holes are formed; 22. a display screen; 3. a support plate; 4. a fan; 5. a limiting frame; 51. a guide portion; 52. a limiting part; 6. a water-absorbing layer; 61. a mesh bag; 7. a humidity detection unit; 8. a humidity comparison unit; 9. a switch unit; 10. and an alarm unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-4 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application discloses dampproofing and waterproofing touch all-in-one. Referring to fig. 1, dampproofing and waterproofing touch all-in-one includes the host computer body 2 and support frame 1, the one end and the ground butt of support frame 1, the one end and the host computer body 2 fixed connection on ground are kept away from to support frame 1, and the host computer body 2 includes casing 21, and casing 21 internally mounted has display screen 22 and a plurality of electronic components (not shown in the figure) that are used for realizing the touch all-in-one function, and display screen 22 stretches out on casing 21 surface.

Referring to fig. 2, the housing 21 is provided with a plurality of heat dissipation holes 211 and a plurality of ventilation holes 212, the plurality of heat dissipation holes 211 are uniformly arranged along the horizontal direction, the size of the plurality of ventilation holes 212 is far smaller than that of the heat dissipation holes 211, and the ventilation holes 212 are located at the bottom of the housing 21; the through hole is located casing 21 and keeps away from casing 21 and is fixed with backup pad 3, and backup pad 3 extends along the direction of arranging of louvre 211, and backup pad 3's both ends and casing 21 fixed connection along length direction leaves certain space between the one end of casing 21 is kept away from to backup pad 3 and louvre 211.

Be fixed with two fans 4 on the backup pad 3, fan 4 distributes along the length direction of backup pad 3, the air exit of fan 4 is just to a plurality of louvres 211, the one end that the air exit is close to louvre 211 is provided with spacing frame 5, spacing frame 5 and fan 4's shell fixed connection, spacing frame 5 is around fan 4's shell setting, spacing frame 5 includes guide part 51 and spacing portion 52, guide part 51 and fan 4's shell fixed connection and guide part 51 extend towards the direction of through-hole, the one end and spacing portion 52 fixed connection of fan 4's shell are kept away from to guide part 51, spacing portion 52 perpendicular to guide part 51, and guide part 51 extends towards fan 4's center department.

Referring to fig. 2 and 3, the limiting frame 5 is abutted with the water absorbing layer 6, and a gap is left between the water absorbing layer 6 and the heat dissipation hole 211; the water absorbing layer 6 comprises a grid bag 61 and a plurality of activated carbon particles (not shown in the figure) filled in the grid bag 61, the grid bag 61 is put into the limiting frame 5 from the opening of the limiting frame 5, and the grid bag 61 is abutted with the guide part 51 and the limiting part 52; gaps for air to pass through are reserved among the active carbon particles.

Referring to fig. 4, a humidity detection circuit for controlling the fan 4 to start or stop is coupled to the fan 4, and the humidity detection circuit includes a humidity detection unit 7, a humidity comparison unit 8, a switch unit 9, and a warning unit 10.

The humidity detection unit 7 is used for detecting the humidity of the surface of the electronic component in the shell 21 and sending a humidity detection signal; the humidity detection unit 7 comprises a humidity sensitive resistor RS, the humidity sensitive resistor RS is installed in the shell 21 and close to the electronic component in the shell 21, one end of the humidity sensitive resistor RS is coupled to a power supply voltage VCC, the other end of the humidity sensitive resistor RS is connected with a first resistor R1 in series, and the other end of the first resistor R1 is grounded.

A humidity comparison unit 8 coupled to the humidity detection unit 7 and provided with a humidity reference value to output a humidity comparison signal when the humidity detection signal is greater than the humidity reference value; the humidity comparing unit 8 includes a comparator N1, a third resistor R3 and a fourth resistor R4, a first signal input terminal of the comparator N1 is a positive input terminal, the positive input terminal is coupled to a connection node between the humidity sensing resistor RS and the first resistor R1, one terminal of the third resistor R3 is coupled to the power voltage VCC, the other terminal of the third resistor R3 is coupled to the fourth resistor R4, the other terminal of the fourth resistor R4 is grounded, a second signal input terminal of the comparator N1 is an inverting input terminal, the inverting input terminal is coupled to a connection node between the third resistor R3 and the fourth resistor R4, and a signal output terminal of the comparator N1 is coupled to the switching unit 9.

The switch unit 9 is coupled to the humidity comparison unit 8, connected in series to the power supply loop of the fan 4 and connected in series to the power supply loop of the fan 4 to receive the humidity comparison signal and send a switch signal to control the fan 4 to start; the switch unit 9 includes a transistor Q1 and a relay KM1, a base of a transistor Q1 is coupled to a signal output end of the comparator N1, a collector of the transistor Q1 is coupled to a power supply voltage VCC after being connected in series with the relay KM1, an emitter of the transistor Q1 is grounded, the other end of the relay KM1 is coupled to the power supply voltage VCC, the relay KM1 includes a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the fan 4.

The warning unit 10 includes a light emitting diode D1, a light emitting diode D1, a light emitting diode D1 mounted on the surface of the housing 21, an anode of the light emitting diode D1 coupled to the emitter of the transistor Q1, and a cathode of the light emitting diode D1 grounded.

The implementation principle of a dampproofing and waterproofing touch all-in-one of this application embodiment does: when the touch all-in-one machine is exposed in humid air for a long time in humid weather, the humid air enters the shell 21 from the plurality of heat dissipation holes 211, and the surfaces of the electronic components in the shell 21 are humid.

In the process, the humidity sensing resistor RS detects the humidity degree in the shell 21 in real time and sends a humidity detection signal to the comparator N1, when the humidity in the shell 21 is increased, the humidity sensing resistor RS prevents the humidity from being reduced, and further the voltage divided at the two ends of the humidity sensing resistor RS is reduced, the humidity detection signal received by the normal phase input end of the comparator N1 is increased, when the humidity detection signal received by the normal phase input end of the comparator N1 is larger than the humidity reference value of the reverse phase input end, the signal output end of the comparator N1 outputs a high level signal to the base electrode of the triode Q1, the triode Q1 is conducted and sends a switch signal to control the light emitting diode D1 to emit light, the relay KM1 is powered to close the normally-open contact switch KM1-1, and the fan 4 is started.

Fan 4 starts and extracts the air, discharges the air to layer 6 that absorbs water, and the vapor in the air is fully absorbed and then comparatively dry air by the active carbon granule this moment, and comparatively dry air passes mesh bag 61 and enters into casing 21 after passing from the clearance between the active carbon granule inside, air-dries the processing to the inside moist components and parts of casing 21, and dry air in the casing 21 is discharged by a plurality of bleeder vents 212.

When the humidity inside the housing 21 is decreased, the humidity detection signal is smaller than the humidity reference value, and the fan 4 stops rotating.

The mesh bag 61 and the limiting frame 5 are clamped, so that the water absorption layer 6 can be conveniently replaced by workers.

The foregoing is a preferred embodiment of the present application and is not intended to limit the scope of the application in any way, and any features disclosed in this specification (including the abstract and drawings) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

Claims

1. The utility model provides a dampproofing and waterproofing touch all-in-one, includes the host computer body (2), a plurality of louvres (211), its characterized in that have been seted up to host computer body (2): louvre (211) department is provided with fan (4), the air exit of fan (4) is towards louvre (211), the air exit department of fan (4) is provided with water absorption layer (6) that are arranged in absorbing vapor in the air just fan (4) exhaust air passes water absorption layer (6), humidity detection circuitry is coupled to fan (4), humidity detection circuitry includes:

the humidity detection unit (7) is used for detecting the humidity of the surface of the electronic component in the shell (21) and sending a humidity detection signal;

the humidity comparison unit (8) is coupled with the humidity detection unit (7) and is provided with a humidity reference value so as to output a humidity comparison signal when the humidity detection signal is greater than the humidity reference value;

and the switch unit (9) is coupled with the humidity comparison unit (8), connected in series in the power supply loop of the fan (4) and connected in series in the power supply loop of the fan (4) so as to receive the humidity comparison signal and send out a switch signal to control the fan (4) to start.

2. The integrated waterproof and moisture-proof touch machine according to claim 1, wherein: humidity detection unit (7) include wet resistance RS, wet resistance RS installs in casing (21) and is close to the electronic components department in casing (21).

3. The integrated waterproof and moisture-proof touch machine according to claim 2, wherein: one end of the humidity sensitive resistor RS is coupled to a power supply voltage VCC, the other end of the humidity sensitive resistor RS is connected with a first resistor R1 in series, and the other end of the first resistor R1 is grounded.

4. The integrated waterproof and moisture-proof touch machine according to claim 3, wherein: the humidity comparison unit (8) comprises a comparator N1, a first signal input end of the comparator N1 is coupled to a connection node of a humidity-sensitive resistor RS and a first resistor R1, a second signal input end of the comparator N1 is connected to a humidity reference value after passing through a second resistor R2, and a signal output end of the comparator N1 is coupled to the switch unit (9).

5. The integrated waterproof and moisture-proof touch machine according to claim 4, wherein: the humidity comparison unit (8) further comprises a third resistor R3 and a fourth resistor R4, one end of the third resistor R3 is coupled to the power voltage VCC, the other end of the third resistor R3 is coupled to the fourth resistor R4, the other end of the fourth resistor R4 is grounded, and a second signal input end of the comparator N1 is coupled to a connection node of the third resistor R3 and the fourth resistor R4.

6. The integrated waterproof and moisture-proof touch machine according to claim 5, wherein: the switch unit (9) comprises a transistor Q1, the base of the transistor Q1 is coupled to the signal output end of the comparator N1, the collector of the transistor Q1 is coupled to the power voltage VCC, and the emitter of the transistor Q1 is grounded.

7. The integrated waterproof and moisture-proof touch machine according to claim 6, wherein: the switch unit (9) further comprises a relay KM1, one end of the relay KM1 is coupled to a collector of the triode Q1, the other end of the relay KM1 is coupled to a power supply voltage VCC, the relay KM1 comprises a normally open contact switch KM1-1, and the normally open contact switch KM1-1 is connected in series in a power supply loop of the fan (4).

8. The integrated waterproof and moisture-proof touch machine according to claim 6, wherein: the humidity detection circuit further comprises a warning unit (10), wherein the warning unit (10) comprises a light emitting diode D1, the light emitting diode D1 is installed on the surface of the shell (21), the anode of the light emitting diode D1 is coupled to the emitting electrode of the triode Q1, and the cathode of the light emitting diode D1 is grounded.

9. The integrated waterproof and moisture-proof touch machine according to claim 1, wherein: the water absorption layer (6) comprises a grid bag (61) and a plurality of activated carbon particles filled in the grid bag (61), and gaps allowing air to pass through are reserved among the activated carbon particles.

10. The integrated waterproof and moisture-proof touch machine of claim 9, wherein: fan (4) are fixed with spacing frame (5) towards the one end terminal surface of louvre (211), spacing frame (5) set up and the one end opening setting of spacing frame (5) around the shell of fan (4), grid bag (61) are inserted and are located spacing frame (5) and with spacing frame (5) mutual joint.