CN210015379U - A projector temperature control box with air inside and outside circulation control - Google Patents

Abstract

The utility model discloses a temperature control box for a projector with air inside and outside circulation control, comprising a projection box body, a partition plate and an air inlet bellows; the projection box body: the projection box body is a rectangular box body, and the projection box body includes a A rainproof shell, an external protection frame and a box body, the rainproof shell is installed on the top of the box body, the outer protection frame is installed on the side of the box body, the rear side of the box body is installed with light-transmitting glass, and the box body An air outlet control mechanism is installed on the left and right sides of the projector, and the air outlet control mechanism is connected with an air outlet pipe; baffle: the baffle is installed inside the projection box body and close to the front side of the box, and the baffle will The projection box body is divided into two chambers, the utility model provides a projector temperature control box with air inside and outside circulation control, the temperature control box has good airtightness, has the function of air inside and outside circulation control, and can meet the protection of bad weather Require.

Description

A projector temperature control box with air inside and outside circulation control

technical field

The utility model relates to the technical field of outdoor projection, in particular to a temperature control box for a projector with internal and external circulation control of air.

Background technique

A temperature control box is a box that can control the temperature. It can change the internal temperature through a cooling or heating device. Because the projector needs to run for a long time during work, it is easy to heat up and is easily damaged when exposed to the outside. Therefore, a temperature control box is required to assist. The traditional projector protective box and temperature control box do not have the function of air circulation control, only simple air inlet and outlet filters, or simple one-way valves installed in the air outlet. In special outdoor weather conditions such as high temperature, heavy rain, typhoon, existing It is difficult to maintain a good seal in the structure of the projector, and the external water vapor, dust, high temperature, and cold air can easily enter the device. Even the protective box equipped with a one-way valve will have the problem of air leakage. The projector with higher outdoor power is generally more expensive. The use environment also has high requirements, so the traditional projector protective box and temperature control box cannot meet the protection requirements of bad weather.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide a projector temperature control box with air inside and outside circulation control. It can effectively solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a projector temperature control box with air inside and outside circulation control, including a projection box body, a clapboard and an air inlet bellows;

Projection box body: The projection box body is a cuboid box body. The projection box body includes a rainproof casing, an external protection frame and a box body. The rainproof casing is installed on the top of the box body, and the external protection frame is installed in the box. The side surface of the box body, the rear side of the box body is installed with light-transmitting glass, the left side and the right side of the box body are installed with an air outlet control mechanism, and the air outlet control mechanism is connected with an air outlet pipe;

Partition: The partition is installed inside the projection box body and close to the front side of the box. The partition divides the projection box body into two chambers, and a heat exchanger is installed in the middle of the front side of the partition. A projector is installed at the bottom of the body, and the projector is located on the rear side of the partition;

Air inlet bellows: The air inlet bellows are installed on the front side of the partition, and the two air inlet bellows are located on the left and right sides of the heat exchanger respectively. The bottom end is provided with a bottom air inlet, the top of the air box of the air inlet is installed with a motor, and the outer side of the motor is provided with a motor box. The air outlet and bellows are connected in rotation, and an air duct door is installed on the side of the rotating shaft, and the air duct door is located at the air outlet position on the rear side of the air inlet bellows;

Wherein: it also includes a controller, the controller is installed on the left side of the rear side of the partition, the input end of the controller is electrically connected with the output end of the external power supply, and the output end of the controller is connected to the heat exchanger, the air outlet control mechanism and the The input end of the motor is electrically connected.

Further, it also includes a gear lever, an air duct door opening limit switch and an air duct door closing limit switch. The gear lever is installed in the middle of the air duct door, and runs through the upper and lower ends of the air duct door, between the two ends of the gear lever and the air inlet bellows. There is a gap, the air duct door open limit switch and the air duct door close limit switch are installed at the top inside the air inlet bellows, and the gear lever cooperates with the air duct door open limit switch and the air duct door close limit switch. The limit switch and the air duct door closing limit switch disconnect the circuit to realize the opening and closing functions, which can prevent the air duct door from being opened or closed without a limit device, resulting in collision with the air inlet bellows.

Further, it also includes an air inlet filter, the air inlet filter is installed on the air inlet bellows, and is located at the front air inlet and the bottom air inlet, filtering large particles such as sundries from the outside, avoiding the inside of the box. , which affects the internal structure.

Further, the bottom of the outer protection frame is lower than the bottom of the box body, the outer protection frame includes a ring frame, a support plate and a U-shaped frame, and four support rods are installed on the side array of the ring frame, and the tops of the four support rods are arranged. A U-shaped rod is installed, the support rod runs through the ring frame and the U-shaped frame, and the external protective frame supports the entire box body, ensuring that the box body is in a suspended state, and the bottom of the box is not in contact with external objects, thereby increasing the heat dissipation performance.

Further, the air outlet duct is a triangular prism structure, the air outlet duct is installed on the side of the box, the bottom end of the air outlet duct is provided with an air outlet, and the air outlet is arranged at the bottom end, which can effectively avoid rainwater or external dust. , sundries, etc. invade into the interior of the box.

Compared with the prior art, the beneficial effect of the present utility model is: the temperature control box of the projector with air circulation control has the following advantages:

1. By setting the air outlet control mechanism and the air inlet bellows, the interior space of the temperature control box can be isolated from the outside air to the greatest extent. All air inlet and outlet ducts are electrically controlled, and can be opened and closed according to the controller;

2. By setting the rainproof casing and the inlet and outlet filters, it can achieve the most effective protection for the internal precious projector, and protect the projector from the influence of external air pressure and bad weather;

3. By setting the heat exchanger to keep the temperature inside the box constant, the function of controlling the air circulation inside and outside the box can be realized.

Description of drawings

Fig. 1 is the structural representation of the utility model;

2 is a schematic diagram of the internal structure of the utility model;

3 is a schematic diagram of the internal structure of the air inlet bellows of the present invention.

In the picture: 1 heat exchanger, 2 partitions, 3 projection box body, 31 rainproof casing, 32 external protection frame, 33 box body, 4 controller, 5 air outlet control mechanism, 6 projector, 7 transparent glass, 8 motor box, 9 air inlet bellows, 10 air inlet filter, 11 motor, 12 air duct door open limit switch, 13 coupling, 14 air duct door close limit switch, 15 air duct door, 16 rotating shaft, 17 front side inlet Air outlet, 18 bottom air inlet, 19 air outlet duct.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a projector temperature control box with air inside and outside circulation control, including a projection box body 3, a partition plate 2 and an air inlet bellows 9;

Projection box body 3: The projection box body 3 is a cuboid box body. The projection box body 3 includes a rainproof casing 31, an external protection frame 32 and a box body 33. The rainproof casing 31 is installed on the top of the box body 33. Outdoor special Under weather conditions such as high temperature, heavy rain, and typhoon, it can protect the internal structure. The outer protection frame 32 is installed on the side of the box body 33 to protect the box body 33 from being damaged by external impacts. The bottom of the outer protection frame 32 is lower than the box body 33. At the bottom, the outer protection frame 32 includes a ring frame, a support plate and a U-shaped frame. Four support rods are installed on the side of the ring frame, and U-shaped rods are installed at the top of the four support rods. The support rods pass through the ring frame and the U-shaped frame. The frame is used to protect the box body 33 from all sides. The rear side of the box body 33 is provided with light-transmitting glass 7. The structure of the mechanism 5 is the same as that of the air inlet bellows 9, that is, the control plays a sealing role and controls the outflow of gas. The air outlet control mechanism 5 is connected with an air outlet duct 19. The air outlet duct 19 is a triangular prism structure, and the air outlet duct 19 is installed in the On the side of the box body 33, the bottom end of the air outlet duct 19 is provided with an air outlet, and the air outlet is arranged below the air outlet duct 19, which can adapt to the rainy weather outside. will accumulate, which can effectively protect the internal projector 6;

Partition 2: The partition 2 is installed inside the projection box body 3 and is close to the front side of the box body 33, and has good sealing performance. The partition 2 divides the projection box body 3 into two chambers, which are located on the front side The air inlet cavity, and the main chamber located on the rear side of the partition plate 2, the heat exchanger 1 is installed in the middle of the front side of the partition plate 2. The heat exchanger 1 can keep the temperature and humidity in the box constant, and ensure that the internal air has the function of internal and external circulation. When the temperature in the box is higher than the range that the refrigeration device can bear, the air duct is opened, and the exhaust device discharges the hot air in the box. The projector 6 is in the internal circulation mode when it is not working, and the projector 6 is installed at the bottom of the box body 33 . , the projector 6 is located on the rear side of the partition 2;

Air inlet bellows 9: The air inlet bellows 9 are installed on the front side of the partition plate 2, and the two air inlet bellows 9 are respectively located on the left and right sides of the heat exchanger 1 to control the entry of outside air. The front side of the air inlet bellows 9 There is a front side air inlet 17, the bottom end of the air inlet bellows 9 is provided with a bottom air inlet 18, the outside air enters the box 33 from the front side air inlet 17 and the bottom air inlet 18, and the top of the air inlet bellows 9 is installed with a motor 11. , the outside of the motor is provided with a motor box 8, which can protect the motor 11 and improve its service life. The output shaft of the motor 11 is connected with a rotating shaft 16 through a coupling 13. The air inlet bellows 9 is rotatably connected, the bottom end of the rotating shaft 16 is installed with a rotating shaft bushing, and the side of the rotating shaft 16 is installed with an air duct door 15 for controlling the circulation of air. When the duct door 15 is opened, the motor 11 is turned on, and the output shaft of the motor 11 drives the air duct door 15 to rotate through the rotating shaft 16, so that the tuyere position on the rear side of the air inlet bellows 9 leaks out, and the outside air flows in from the tuyere position. It includes a gear lever, an air duct door opening limit switch 12 and an air duct door closing limit switch 14. The gear lever is installed in the middle of the air duct door 15 and runs through the upper and lower ends of the air duct door 15 to limit the rotation angle of the air duct door 15. There is a gap between the two ends of the rod and the air inlet bellows 9. The air duct door opening limit switch 12 and the air duct door closing limit switch 14 are installed at the top of the air inlet bellows 9. When opened, the gear lever squeezes the air duct door opening limit. After the position switch 12 is turned off, the circuit is disconnected, the breakpoint of the air duct door open limit switch 12 is closed, the power supply is disconnected, and when the air duct door 15 is closed, after the gear lever contacts the air duct door close limit switch 14, the circuit is automatically disconnected, Protect the air duct door 15 from impact;

Wherein: also includes a controller 4, the controller 4 is installed on the left side of the rear side of the partition 2, and is used to control various electrical components inside, the input end of the controller 4 is electrically connected with the output end of the external power supply, and the controller 4 The output end of the heat exchanger 1, the air outlet control mechanism 5 and the input end of the motor 11 are electrically connected, and the air inlet filter screen 10 is also included. The air inlet filter screen 10 is installed on the air inlet bellows 9 and is located on the front side. At the positions of the air inlet 17 and the bottom air inlet 18, the air inlet filter 10 can filter the air entering the box 33 from the outside, prevent large particles from entering the box 33, and effectively protect the projector 6 inside.

In use: turn on the motor 11, the output shaft of the motor 11 drives the rotating shaft 16 to rotate through the coupling 13, the rotating shaft 16 drives the air duct door 15 to rotate, the gear lever on the air duct door 15 rotates accordingly, and squeezes the air duct door to open the limit Switch 12, the contacts on the air duct door open limit switch 12 are closed, the circuit of the motor 11 is automatically disconnected, the outside air flows into the interior of the box 33 from the front air inlet 17 and the bottom air inlet 18, and then closes the air duct door 15. The gear lever is in contact with the air duct door closing limit switch 14, that is, the closing of the air duct door 15 is completed, and the internal air is cooled or heated by the heat exchanger 1 to realize circulation. When the temperature is too high, the air outlet control mechanism 5 is opened, and the internal air is automatically The air outlet duct 19 is discharged.

It is worth noting that the core chip of the controller 4 disclosed in this embodiment is a PLC single-chip microcomputer, the specific model is STC10F12XE, the specific model of the heat exchanger 1 is BR032, the specific model of the motor 11 is M91X40SK4GG, and the controller 4 controls The work of the heat exchanger 1 and the motor 11 adopts the methods commonly used in the prior art.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a take projector temperature control box of inside and outside circulation control of air which characterized in that: comprises a projection box body (3), a partition plate (2) and an air inlet bellows (9);

projection box body (3): the projection box comprises a projection box body (3), wherein the projection box body (3) is a cuboid box body, the projection box body (3) comprises a rainproof shell (31), an external protection frame (32) and a box body (33), the rainproof shell (31) is installed on the top end of the box body (33), the external protection frame (32) is installed on the side face of the box body (33), light-transmitting glass (7) is installed on the rear side face of the box body (33), an air outlet control mechanism (5) is installed on the left side face and the right side face of the box body (33), and the air outlet control mechanism (5) is communicated with an air outlet pipeline (19;

separator (2): the projection box comprises a projection box body (3), a partition plate (2), a heat exchanger (1), a projector (6), a heat exchanger (2) and a heat exchanger (33), wherein the partition plate (2) is arranged in the projection box body (3) and close to the front side face of the box body (33), the projection box body (3) is divided into two chambers by the partition plate (2), the heat exchanger (1) is arranged in the middle of the front side face of the partition plate (2), the projector (6) is arranged at the bottom of the box body (33;

air inlet bellows (9): the air inlet air box (9) is arranged on the front side face of the partition board (2), the two air inlet air boxes (9) are respectively located on the left side and the right side of the heat exchanger (1), a front side air inlet (17) is arranged on the front side face of the air inlet air box (9), a bottom air inlet (18) is formed in the bottom end of the air inlet air box (9), a motor (11) is arranged at the top end of the air inlet air box (9), a motor box (8) is arranged on the outer side of the motor, an output shaft of the motor (11) is connected with a rotating shaft (16) through a coupler (13), the rotating shaft (16) is located inside the air inlet air box (9) and is rotatably connected with the air inlet air box (9), an air duct door (15) is arranged on the side face of the rotating shaft (16);

wherein: the air conditioner is characterized by further comprising a controller (4), wherein the controller (4) is installed on the left side of the rear side face of the partition plate (2), the input end of the controller (4) is electrically connected with the output end of an external power supply, and the output end of the controller (4) is electrically connected with the input ends of the heat exchanger (1), the air outlet control mechanism (5) and the motor (11).

2. The projector temperature control box with air internal and external circulation control of claim 1, characterized in that: the air inlet air box structure is characterized by further comprising a blocking rod, an air duct door opening limit switch (12) and an air duct door opening limit switch (14), wherein the blocking rod is installed in the middle of the air duct door (15) and penetrates through the upper end and the lower end of the air duct door (15), a gap is reserved between the two ends of the blocking rod and the air inlet air box (9), and the air duct door opening limit switch (12) and the air duct door opening limit switch (14) are installed at the top end of the interior of the air inlet air box (9).

3. The projector temperature control box with air internal and external circulation control of claim 1, characterized in that: still include air intake filter screen (10), air intake filter screen (10) are installed on air intake bellows (9), and are located front side air intake (17) and bottom air intake (18) position.

4. The projector temperature control box with air internal and external circulation control of claim 1, characterized in that: the bottom of external protection frame (32) is less than the bottom of box (33), and external protection frame (32) include annular frame, backup pad and U type frame, and four bracing pieces are installed to the side array of annular frame, and U type pole is installed on the top of four bracing pieces, and the bracing piece runs through annular frame and U type frame.

5. The projector temperature control box with air internal and external circulation control of claim 1, characterized in that: air-out pipeline (19) are the triangular prism structure, and air-out pipeline (19) are installed in the side of box (33), and the air outlet has been seted up to the bottom of air-out pipeline (19).

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