CN210005846U

CN210005846U - radiating structure for indoor projector

Info

Publication number: CN210005846U
Application number: CN201920876222.8U
Authority: CN
Inventors: 周伟昕
Original assignee: Shenzhen Background Interior Design Co Ltd
Current assignee: Shenzhen Background Interior Design Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-01-31
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to an heat radiation structure for indoor projector, it is including hanging the projector body of putting on the ceiling, be equipped with the electric fan that the air outlet aimed at projector body air outlet on the ceiling, projector body air outlet department is equipped with detection device, controlling means and final controlling element, detection device is used for detecting projector body air outlet department temperature size and output temperature signal, controlling means is used for receiving temperature signal and output control signal, final controlling element is used for receiving control signal and output final controlling element to the electric fan and opens with the control electric fan and stop, detection device is temperature sensor, temperature sensor passes through the installation subassembly and installs on the projector body, the utility model discloses when using, can reduce near the temperature of projector to the life of extension projector.

Description

radiating structure for indoor projector

Technical Field

The utility model relates to a projecting apparatus technical field especially relates to indoor heat radiation structure for projecting apparatus.

Background

At present, projectors, also called projectors, are kinds of devices capable of projecting images or videos onto a curtain, and can be connected with computers, VCDs, DVDs, BDs, game machines, DVs, and the like through different interfaces to play corresponding video signals.

the rooms are often installed with projectors to increase the satisfaction of guests, usually, the projectors are hung on the ceiling, and then a matching screen is installed at a predetermined position for projection by the projectors.

However, in a restaurant, the ambient temperature of the projector operating on the ceiling is greatly different from the temperature under the restaurant due to the rising of hot air such as food, and denier of the temperature near the projector is high, which may cause the polysilicon LCD panel in the projector to burn out, and further cause the projector to be damaged, which may affect the service life of the projector.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat radiation structure for kinds of indoor projecting apparatus can reduce the temperature near the projector to prolong the life of projector.

The above object of the present invention can be achieved by the following technical solutions:

A heat dissipation structure for indoor projector comprises a projector body hung on a ceiling, wherein the ceiling is provided with an electric fan with an air outlet aligned with the air outlet of the projector body, the air outlet of the projector body is provided with a detection device, a control device and an execution device, the detection device is used for detecting the temperature of the air outlet of the projector body and outputting a temperature signal, the control device is used for receiving the temperature signal and outputting a control signal, the execution device is used for receiving the control signal and outputting an execution signal to the electric fan to control the start and stop of the electric fan, the detection device is a temperature sensor, and the temperature sensor is installed on the projector body through an installation component.

Through adopting above-mentioned technical scheme, the detection device who sets up can detect the temperature of projector body air outlet department, and can be with in the temperature signal transmission who detects to controlling means, controlling means receives temperature signal after, handle and can output control signal to the execution apparatus in, after execution apparatus received control signal, can export execution signal through the processing, this execution signal can drive opening and shutting of electric fan, through this mode, when the electric fan starts, just enable the temperature decline of projector body air outlet department, and then can make the temperature decline in the projector body, to this, just can reduce polycrystalline silicon LCD because receive the high temperature and the destroyed condition emergence, effectively prolong the life of projector body.

The utility model discloses advance step and set up to the installation component includes fixed block, loading board, riser, slide and threaded rod, the fixed block is installed on projector body lateral wall, the loading board is installed on the fixed block and is paralleled with ground, slide, riser symmetry set up in the both sides of loading board and mutually perpendicular with the loading board, the slide slides and connects on the loading board, threaded connection has the threaded rod on the slide, the extending direction of threaded rod is the same with the moving direction of slide.

Through adopting above-mentioned technical scheme, when needs install temperature sensor on the projector body, will place temperature sensor vertical earlier on the loading board, rotatory threaded rod again makes threaded rod drive slide, treats that the slide is with the temperature sensor centre gripping between slide and riser, and the stop rotation threaded rod just can stabilize temperature sensor on preset position this moment.

The utility model discloses advance step and set up to controlling means includes comparator A, resistance R1, slide rheostat R2, relay K coil, DC power supply VCC1, DC power supply VCC2 and triode Q, triode Q is coupled in comparator A, comparator A's homophase end is coupled in temperature sensor, comparator A's inverting terminal is coupled in resistance R1's end, the tip that resistance R1 kept away from the inverting terminal is coupled in DC power supply VCC1, resistance R1 keeps away from DC power supply VCC 1's tip is coupled in slide rheostat R2, slide rheostat R2 keeps away from resistance R1's tip ground connection, triode Q's base is coupled in comparator A's output, triode Q's projecting pole ground connection, triode Q's collecting electrode is coupled in relay K coil, relay K coil keeps away from triode Q's tip and is coupled in DC power supply VCC 2.

Through adopting above-mentioned technical scheme, according to the adjustable resistance that moves resistance R2 of required ambient temperature to adjust the voltage value of comparator A inverting input end, when the temperature of air outlet department is less than preset temperature value, the voltage value of comparator A homophase input end is higher than the voltage value of inverting input end, thereby the comparator output high level, thereby it is simple and easy to make the triode Q who couples on comparator A output open and close.

The utility model discloses advance step and set up as actuating device includes electric fan, relay K normally open contact switch and alternating current power supply, relay K normally open contact switch end is coupled in alternating current power supply, another end is coupled in the electric fan, the end that relay K normally open contact switch was kept away from to the electric fan is coupled in alternating current power supply.

Through adopting above-mentioned technical scheme, when triode Q's base inserts the high level, triode Q switches on, and relay K coil gets electric, and relay K normally open contact switch is closed, and at this moment, the power supply circuit at electric fan place switches on, and the electric fan begins to rotate to it is easy to make the electric fan start.

The utility model discloses advance step and set up to the installation component includes fixed block, T-shaped piece and T-shaped groove, the T-shaped piece sets up on temperature sensor, the T-shaped groove set up on the fixed block and with T-shaped piece interference fit, the extending direction in T-shaped groove is mutually perpendicular with ground.

Through adopting above-mentioned technical scheme, when needs installation temperature sensor, can make the T-shaped piece align the T-shaped groove, slide the T-shaped piece into the T-shaped groove again, when the stable gomphosis of T-shaped piece was at the T-shaped inslot, just can indirectly lock temperature sensor in the T-shaped inslot, this simple structure is convenient for operate.

The utility model discloses step sets up to be that the notch department of T-shaped groove is provided with the rubber sleeve that matches with the notch.

Through adopting above-mentioned technical scheme, the rubber sleeve that sets up is made by the rubber material, during the use, establishes the rubber sleeve in T-slot with its cover, and the existence of rubber sleeve can reduce impurity such as dust and get into from the notch in T-slot, effectively improves the life in T-slot.

The utility model discloses step sets up to, the side that the slide is close to temperature sensor is provided with the inoxidizing coating.

Through adopting above-mentioned technical scheme, the inoxidizing coating of setting is made by the rubber material, and itself has flexibility and elasticity, can reduce the power of attack of slide to temperature sensor, and then can prolong temperature sensor's life.

The utility model discloses step sets up to, the threaded rod is equipped with the knob lid near the tip cover of slide.

Through adopting above-mentioned technical scheme, the knob lid that sets up can increase the frictional force between hand and the threaded rod, and then can remove the slide to preset position fast.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the mutual cooperation of the electric fan, the detection device, the control device and the detection device, the temperature at the air outlet of the projector body can be reduced, the condition that the polycrystalline silicon LCD is damaged due to high temperature can be further reduced, and the service life of the projector body is effectively prolonged.

2. Through mutually supporting of installation component, enable detection device and stabilize on preset position, and then be convenient for the accurate temperature of surveying projector body air outlet department of detection device, reduce because of the inaccurate error that leads to of detection device measurement.

Drawings

Fig. 1 is a circuit diagram of a detection device and a control device in embodiment 1 of the present invention;

fig. 2 is a schematic position diagram of an electric fan and a projector body in embodiment 1 of the present invention;

fig. 3 is a side sectional view of the mounting assembly and the detecting device in embodiment 1 of the present invention;

fig. 4 is a schematic top view of the mounting assembly and the projector body according to embodiment 2 of the present invention.

Reference numerals: 1. a projector body; 2. a detection device; 3. a control device; 4. an execution device; 5. mounting the component; 51. a fixed block; 52. a carrier plate; 53. a vertical plate; 54. a slide plate; 541. a protective layer; 55. a threaded rod; 551. a knob cover; 56. a T-shaped block; 57. a T-shaped slot; 6. a ceiling; 7. an electric fan.

Detailed Description

The present invention will be described in further detail in with reference to the accompanying drawings.

kinds of indoor projector heat dissipation structures, as shown in fig. 2 and 3, include the projector body 1 that is hoisted on the ceiling 6, install the electric fan 7 towards the air outlet of the projector body 1 on the air outlet of the ceiling 6, as shown in fig. 1, in order to turn on the electric fan 7 automatically, so as to make the temperature of the air outlet of the projector body 1 reduce, have installed the checkout gear 2, controlling device 3 and actuator 4 on the projector body 1, the controlling device 3 is coupled to the checkout gear 2, the actuator 4 is coupled to the controlling device 3;

the detection device 2 is used for detecting the temperature at the air outlet of the projector body 1 and forming a temperature signal, in the embodiment, the model adopted by the temperature sensor is PT100, and the temperature sensor outputs a higher resistance value along with the rise of the temperature, so that the output voltage value is higher;

the control device 3 is configured to receive a temperature signal and output a control signal, the control device 3 includes a comparator a, a resistor R1, a sliding rheostat R2, a relay K coil, a dc power source VCC1, a dc power source VCC2, and a transistor Q, the transistor Q is coupled to the comparator a, a non-inverting terminal of the comparator a is coupled to the temperature sensor, a non-inverting terminal of the comparator a is coupled to a terminal of the resistor R1, an end of the resistor R1 away from the non-inverting terminal is coupled to the dc power source VCC1, an end of the resistor R1 away from the dc power source VCC1 is coupled to the sliding rheostat R2, an end of the sliding rheostat R2 away from the resistor R1 is grounded, a base of the transistor Q is coupled to an output terminal of the comparator a, an emitter of the transistor Q is grounded, a collector of the transistor Q is coupled to the relay K coil, an end of the relay K coil away from the;

the executing device 4 comprises an electric fan 7, a relay K normally open contact switch and an alternating current power supply, wherein the end of the relay K normally open contact switch is coupled to the alternating current power supply, the other end is coupled to the electric fan 7, and the end, far away from the relay K normally open contact switch, of the electric fan 7 is coupled to the alternating current power supply;

when the temperature sensor detects that the temperature at the air outlet is higher than a reference value preset in the comparator A, the comparator A outputs a high level, the triode Q high level is conducted, the relay K coil is electrified, the relay K normally-open contact switch is closed, at the moment, a power supply loop where the electric fan 7 is located is conducted, the electric fan 7 starts to rotate, at the moment, the air outlet of the electric fan 7 starts to blow air to the air outlet of the projector body 1, through the mode, the temperature at the air outlet of the projector body 1 can be reduced, the phenomenon that the polycrystalline silicon LCD board in the projector body 1 is burnt out due to high temperature, and the service life of the projector body 1 is influenced is avoided.

As shown in fig. 3, the temperature sensor is fixed on the projector body 1 through the mounting component 5, the mounting component 5 includes a fixing block 51, a bearing plate 52, a vertical plate 53, a sliding plate 54 and a threaded rod 55, the fixing block 51 is attached to the outer wall of the projector body 1, the bearing plate 52 is mounted on the fixing block 51 and is parallel to the ground, the sliding plate 54 and the vertical plate 53 are symmetrically mounted on two sides of the bearing plate 52 and are perpendicular to the bearing plate 52, a sliding groove with the same extending direction as the bearing plate 52 is formed on the bearing plate 52, the sliding plate 54 is connected to the sliding groove in a sliding manner, the threaded rod 55 is connected to the sliding plate 54 in a threaded manner, and the extending direction of the;

the end part of the threaded rod 55 close to the sliding plate 54 is sleeved with a knob cover 551, the friction between the hand and the threaded rod 55 can be increased due to the existence of the knob cover 551, the side surface of the sliding plate 54 close to the vertical plate 53 is pasted with a protective layer 541, the protective layer 541 is made of rubber materials, and the protective layer is flexible and elastic, so that the impact force of the sliding plate 54 abutting against the temperature sensor can be relieved, and the service life of the temperature sensor can be prolonged.

When the position of the temperature sensor needs to be locked, the temperature sensor is abutted against the side surface of the vertical plate 53 close to the sliding plate 54 to be positioned in a channel formed by the vertical plate 53 and the sliding plate 54, then the knob cover 551 is manually rotated, the threaded rod 55 drives the sliding plate 54 to horizontally move towards the vertical plate 53, and when the sliding plate 54 is abutted against the side wall of the temperature sensor, the knob cover 551 is stopped to rotate, and at the moment, the temperature sensor can be stabilized at a preset position.

Example 2: as shown in fig. 4, the difference from embodiment 1 is in the mounting assembly 5, and in the present embodiment, the mounting assembly 5 includes: the temperature sensor comprises a fixed block 51, a T-shaped block 56 and a T-shaped groove 57, wherein the T-shaped block 56 is installed on the temperature sensor, the T-shaped groove 57 is formed in the fixed block 51 and is in interference fit with the T-shaped block 56, the extending direction of the T-shaped groove 57 is perpendicular to the ground, a rubber sleeve is sleeved on a notch of the T-shaped groove 57, and impurities such as dust can be reduced from entering the T-shaped groove 57 due to the existence of the rubber sleeve, so that the smoothness degree of the T-shaped groove;

when the temperature sensor needs to be installed, the T-shaped block 56 can be aligned with the T-shaped groove 57 from top to bottom, then the T-shaped block 56 is inserted into the T-shaped groove 57, and when the bottom end surface of the T-shaped block 56 is stably abutted against the bottom end surface of the T-shaped groove 57, the T-shaped block 56 stops moving downwards, and at this time, the temperature sensor can be stabilized at a preset position.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

The heat dissipation structure for the indoor projector comprises a projector body (1) hung on a ceiling (6), and is characterized in that an electric fan (7) with an air outlet aligned with the air outlet of the projector body (1) is arranged on the ceiling (6), a detection device (2), a control device (3) and an execution device (4) are arranged at the air outlet of the projector body (1), the detection device (2) is used for detecting the temperature of the air outlet of the projector body (1) and outputting a temperature signal, the control device (3) is used for receiving the temperature signal and outputting a control signal, the execution device (4) is used for receiving the control signal and outputting an execution signal to the electric fan (7) to control the start and stop of the electric fan (7), the detection device (2) is a temperature sensor, and the temperature sensor is installed on the projector body (1) through an installation component (5).
2. The kind of indoor projector heat dissipation structure of claim 1, wherein the mounting assembly (5) includes a fixing block (51), a bearing plate (52), a vertical plate (53), a sliding plate (54) and a threaded rod (55), the fixing block (51) is installed on the side wall of the projector body (1), the bearing plate (52) is installed on the fixing block (51) and parallel to the ground, the sliding plate (54) and the vertical plate (53) are symmetrically disposed on both sides of the bearing plate (52) and perpendicular to the bearing plate (52), the sliding plate (54) is slidably connected to the bearing plate (52), the threaded rod (55) is threadedly connected to the sliding plate (54), and the extending direction of the threaded rod (55) is the same as the moving direction of the sliding plate (54).
3. The kind of indoor projector heat dissipation structure of claim 1, wherein the control device (3) comprises a comparator A, a resistor R1, a sliding resistor R2, a relay K coil, a DC power VCC1, a DC power VCC2, and a transistor Q, the transistor Q is coupled to the comparator A, the non-inverting terminal of the comparator A is coupled to the temperature sensor, the inverting terminal of the comparator A is coupled to the terminal of the resistor R1, the end of the resistor R1 remote from the inverting terminal is coupled to the DC power VCC1, the end of the resistor R1 remote from the DC power VCC1 is coupled to the sliding resistor R2, the end of the sliding resistor R2 remote from the resistor R1 is grounded, the output terminal of the base comparator A of the transistor Q is coupled to the ground, the emitter of the transistor Q is coupled to the relay K coil, and the end of the relay K coil remote from the transistor Q is coupled to the DC power VCC 2.
4. The heat dissipating structure of indoor projectors of claim 1, wherein the actuator (4) comprises an electric fan (7), a relay K normally open contact switch () coupled to the AC power source, and a relay K normally open contact switch () coupled to the electric fan (7), and the end of the electric fan (7) away from the relay K normally open contact switch is coupled to the AC power source.
5. The kind of indoor projector heat dissipation structure of claim 1, wherein the mounting assembly (5) includes a fixing block (51), a T-block (56), and a T-shaped slot (57), the T-block (56) is disposed on the temperature sensor, the T-shaped slot (57) is opened on the fixing block (51) and is in interference fit with the T-block (56), and the extending direction of the T-shaped slot (57) is perpendicular to the ground.
6. The heat dissipating structure for kinds of indoor projectors of claim 5, wherein a rubber sleeve is provided at the notch of the T-shaped groove (57) to fit the notch.
7. The heat dissipating structure of indoor projectors of claim 2, wherein the side of the slider (54) near the temperature sensor is provided with a protective layer (541).
8. The heat dissipating structure for indoor projectors of claim 2, wherein the end of the threaded rod (55) near the sliding plate (54) is covered with a knob cover (551).