Dustproof heat dissipation television shell

Abstract

The utility model discloses a dustproof heat dissipation television housing, which comprises a back plate and a mounting plate, the back plate is provided with an accommodating groove, the accommodating groove is internally communicated with a first air duct and a second air duct, the first air duct and the second air duct penetrate out of the back plate, and the first air duct and the second air duct are respectively covered with a first filter screen and a second filter screen. A first fan and a second fan are arranged in the first air channel and the second air channel, a heat dissipation area is formed by the first fan and the second fan, the PCB is installed on the installation plate, the installation plate is clamped into the containing groove, and the PCB is located in the heat dissipation area. The utility model provides a dustproof heat-dissipation television shell which can effectively filter cold air entering a television and can automatically clean dust on a filter screen.

Description

Technical Field

[0001] This utility model relates to the field of television sets, and more particularly to a dustproof and heat-dissipating television set casing. Background Technology

[0002] When a television is working, the PCB board inside the television generates a lot of heat. This heat needs to be dissipated to prevent high temperatures from affecting the normal operation of the television or even damaging it.

[0003] The current method for cooling a TV involves embedding a fan in the back panel, mounting the PCB board on the back panel with the fan facing the PCB board, and then covering the LCD screen on the cover. The fan draws cool air from outside the TV into the TV, where the cool air exchanges heat with the PCB board to reduce the TV's operating temperature.

[0004] However, the above cooling method will cause dust to enter the TV and adhere to the PCB board. The dust will affect the fan speed and reduce the heat exchange effect between the cold air and the PCB board. Utility Model Content

[0005] The purpose of this invention is to provide a dustproof and heat-dissipating television casing that effectively filters the cold air entering the television and can automatically clean the dust on the filter.

[0006] The technical solution adopted by the dustproof and heat-dissipating television casing disclosed in this utility model is as follows:

[0007] The device includes a backplate and a mounting plate. The backplate has a receiving groove, through which a first air duct and a second air duct are connected. The first and second air ducts extend out of the backplate and are respectively covered with a first filter and a second filter. A first fan and a second fan are installed in the first and second air ducts, forming a heat dissipation area. The PCB board is mounted on the mounting plate, which is snapped into the receiving groove, and the PCB board is located within the heat dissipation area.

[0008] As a preferred embodiment, the air inlet of the first fan is located in the first air duct, the air outlet of the first fan is located in the receiving slot, the air inlet of the second fan is located in the second air duct, and the air outlet of the second fan is located in the receiving slot.

[0009] As a preferred embodiment, a first baffle plate is rotatably connected inside the receiving slot. The first baffle plate is composed of a first upper plate and a first lower plate, with the first upper plate and the first lower plate forming a right angle. The first lower plate covers the connection between the first air duct and the receiving slot.

[0010] As a preferred embodiment, a first coil spring is fixedly connected to the first wind deflector, and the two ends of the first coil spring respectively contact the first lower plate and the first air duct.

[0011] As a preferred embodiment, a second baffle plate is rotatably connected inside the receiving slot. The second baffle plate is composed of a second upper plate and a second lower plate, with the second upper plate and the second lower plate forming a right angle. The second lower plate covers the air outlet of the second fan.

[0012] As a preferred embodiment, a second coil spring is fixedly connected to the second wind deflector, with the two ends of the second coil spring respectively contacting the second lower plate and the second air duct.

[0013] As a preferred embodiment, the receiving groove is provided with a slot, and a locking block extends from the mounting plate, the locking block being locked into the slot for fixation.

[0014] The beneficial effects of the dustproof and heat-dissipating television casing disclosed in this utility model are:

[0015] The PCB board is mounted on a mounting plate, which snaps into a receiving slot, sealing the slot. A first fan and a second fan operate alternately. The first fan draws in cool air from the outside, which passes through a first filter before entering the first air duct. The first filter removes dust from the cool air. The first fan then propels the cool air through a heat dissipation zone, where it exchanges heat with the PCB board to become hot air. This hot air enters the second air duct, passes through the second filter, and is exhausted, blowing away the dust accumulated on the second filter. Similarly, the second fan draws in cool air from the outside, which passes through the second filter before entering the second air duct. The second filter removes dust from the cool air, which then passes through a heat dissipation zone, exchanges heat with the PCB board, and is exhausted, blowing away the dust accumulated on the first filter. This process filters the cool air entering the receiving slot, preventing external dust from entering and adhering to the PCB board, the first fan, and the second fan. It also allows for alternating cleaning of the first and second filters. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a dustproof and heat-dissipating television casing according to the present invention.

[0017] Figure 2 This is a schematic diagram of the installation of a dustproof and heat-dissipating TV casing according to this utility model.

[0018] Figure 3 This is a schematic diagram of the installation of the first and second filters of a dustproof and heat-dissipating television casing according to the present invention.

[0019] Figure 4This is a cross-sectional view of a dustproof and heat-dissipating support bracket for a television casing according to this utility model.

[0020] Figure 5 This is a schematic diagram of the operation of the first fan in a dustproof and heat-dissipating television casing according to this utility model (the arrows indicate the flow direction of cold and hot air).

[0021] Figure 6 This is a schematic diagram of the operation of the second fan in a dustproof and heat-dissipating television casing according to this utility model (the arrows indicate the flow direction of cold and hot air). Detailed Implementation

[0022] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0023] Please refer to Figures 1-3 .

[0024] The present invention discloses a dustproof and heat-dissipating television casing, comprising a back panel 1 and a mounting plate 2;

[0025] A receiving slot 11 is provided on the back plate 1. A first air duct 12 and a second air duct 13 are connected in the receiving slot 11. The first air duct 12 and the second air duct 13 extend out of the back plate 1. The mounting plate 2 is inserted into the receiving slot 11 and seals the receiving slot 11. The receiving slot 11 can only communicate with the outside world through the first air duct 12 and the second air duct 13.

[0026] The back panel 1 has a first slot 121 and a second slot 131. The connection between the first air duct 12 and the outside is located in the first slot 121, and the connection between the second air duct 13 and the outside is located in the second slot 131. The first air duct 12 and the second air duct 13 are respectively covered with a first filter 122 and a second filter 132. The first filter 122 is inserted into the first slot 121, and the second filter 132 is inserted into the second slot 131. Outside cold air can only enter the first air duct 12 by passing through the first filter 122, and outside cold air can only enter the second air duct 13 by passing through the second filter 132. The first filter 122 and the second filter 132 filter the dust in the passing cold air.

[0027] The PCB board is mounted on the mounting plate 2. Two slots 111 are opened in the receiving groove 11. Two locking blocks 21 extend from the outer side of the mounting plate 2. The locking blocks 21 are locked into the slots 111 for fixation. In this embodiment, it is preferred that after the locking blocks 21 of the mounting plate 2 are locked into the slots 111, the mounting plate 2 is fixed in the receiving groove 11 by screws; the PCB board is located in the receiving groove 11.

[0028] Please refer to Figures 3-6 .

[0029] A first fan 123 and a second fan 133 are provided in the first air duct 12 and the second air duct 13. In this embodiment, the first fan 123 and the second fan 133 are preferably centrifugal fans, and the first fan 123 and the second fan 133 operate alternately. The first fan 123 and the second fan 133 form a heat dissipation area, and the PCB board is located in the heat dissipation area.

[0030] Furthermore, the first fan 123 is embedded in the first air duct 12, the air inlet of the first fan 123 is located in the first air duct 12, the air outlet of the first fan 123 is located in the receiving slot 11, and the connection between the first air duct 12 and the receiving slot 11 is close to the air outlet of the first fan 123; the second fan 133 is embedded in the second air duct 13, the air inlet of the second fan 133 is located in the second air duct 13, the air outlet of the second fan 133 is located in the receiving slot 11, and the connection between the second air duct 13 and the receiving slot 11 is close to the air outlet of the second fan 133; the air outlets of the first fan 123 and the second fan 133 are respectively close to the two sides of the heat dissipation area.

[0031] A first baffle plate 14 is rotatably connected inside the receiving slot 11. The first baffle plate 14 is composed of a first upper plate and a first lower plate. In this embodiment, the first upper plate and the first lower plate preferably form a right angle. The first baffle plate 14 rotates 90° so that the first lower plate covers the connection between the first air duct 12 and the receiving slot 11. A first coil spring is fixedly connected to the first baffle plate 14. The two ends of the first coil spring respectively abut against the first lower plate and the first air duct 12. The first coil spring pushes the first baffle plate 14 to rotate -90° to reset so that the first lower plate covers the air outlet of the first fan 123.

[0032] A second baffle plate 15 is rotatably connected inside the receiving slot 11. The second baffle plate 15 is composed of a second upper plate and a second lower plate. In this embodiment, the second upper plate and the second lower plate preferably form a right angle. The second baffle plate 15 rotates 90° so that the second lower plate covers the connection between the second air duct 13 and the receiving slot 11. A second coil spring is fixedly connected to the second baffle plate 15. The two ends of the second coil spring respectively abut against the second lower plate and the second air duct 13. The second coil spring pushes the second baffle plate 15 to rotate -90° to reset so that the second lower plate covers the air outlet of the second fan 133.

[0033] Please refer to Figure 5 and Figure 6 .

[0034] At runtime:

[0035] When excessive dust accumulates on the second filter 132, the first fan 123 operates to draw in cool air from the outside. The cool air passes through the first filter 122 and enters the first air duct 12. The first filter 122 filters the dust in the cool air, preventing external dust from entering the receiving slot 11 and adhering to the first fan 123, the second fan 133, and the PCB board. The cool air is pushed into the receiving slot 11 by the air outlet of the first fan 123. The cool air pushes the first upper plate, causing the first baffle 14 to rotate 90°, so that the first lower plate covers the connection between the first air duct 12 and the receiving slot 11, preventing the cool air in the receiving slot 11 from flowing back into the duct. Inside the first air duct 12, cold air exchanges heat with the PCB board and is converted into hot air. Without the push of cold air, the second baffle 15 is rotated -90° to reset by the second coil spring. The second lower plate covers the air outlet of the second fan 133 to prevent hot air from entering the second fan 133. The second baffle 15 opens the connection between the second air duct 13 and the receiving slot 11, allowing hot air to enter the second air duct 13, pass through the second filter 132, and be discharged. When the hot air passes through the second filter 132, it blows away the dust accumulated on the second filter 132, thus cleaning the second filter 132.

[0036] When excessive dust accumulates on the first filter 122, the second fan 133 operates to draw in cool air from the outside. The cool air passes through the second filter 132 and enters the second air duct 13, where the second filter 132 filters out the dust. The cool air is then pushed into the receiving slot 11 by the outlet of the second fan 133. The cool air pushes the second upper plate, causing the second baffle 15 to rotate 90°, so that the second lower plate covers the connection between the second air duct 13 and the receiving slot 11, preventing the cool air in the receiving slot 11 from flowing back into the first air duct 12. The cool air then heats the PCB board. The exchange is converted into hot air; without the push of cold air, the first wind deflector 14 is rotated -90° to reset by the first coil spring. The first lower plate covers the air outlet of the first fan 123 to prevent hot air from entering the first fan 123. The first wind deflector 14 opens the connection between the first air duct 12 and the receiving slot 11, allowing hot air to enter the first air duct 12, pass through the first filter screen 122, and be discharged. When the hot air passes through the first filter screen 122, it blows away the dust accumulated on the first filter screen 122, thus cleaning the first filter screen 122.

[0037] This utility model provides a dustproof and heat-dissipating television casing. A PCB board is mounted on a mounting plate, which is then inserted into a receiving groove, sealing the groove. A first fan and a second fan operate alternately. The first fan draws in cool air from the outside, which passes through a first filter before entering the first air duct. The first filter removes dust from the cool air. The first fan propels the cool air through a heat dissipation zone, where it exchanges heat with the PCB board, converting into hot air. This hot air enters the second air duct, passes through the second filter, and is discharged, blowing away the dust accumulated on the second filter. Similarly, the second fan draws in cool air from the outside, which passes through the second filter and enters the second air duct. The second filter removes dust from the cool air, which passes through the heat dissipation zone, exchanges heat with the PCB board, and is discharged, blowing away the dust accumulated on the first filter. This system filters the cool air entering the receiving groove, preventing external dust from entering and adhering to the PCB board, the first fan, and the second fan. It also allows for the alternating cleaning of the first and second filters.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dustproof and heat-dissipating television housing for heat dissipation for a PCB board, characterized in that, The back plate and the mounting plate are included. The accommodating groove is formed on the back plate, and the first air duct and the second air duct are communicated in the accommodating groove. The first air duct and the second air duct pass through the back plate, and the first filter screen and the second filter screen are respectively arranged on the first air duct and the second air duct. The first fan and the second fan are arranged in the first air duct and the second air duct, and the first fan and the second fan form a heat dissipation area. The PCB board is mounted on the mounting plate, the mounting plate is clamped into the accommodating groove, and the PCB board is located in the heat dissipation area.

2. The dustproof and heat dissipating television housing of claim 1, wherein, The air inlet of the first fan is located in the first air duct, the air outlet of the first fan is located in the accommodating groove, the air inlet of the second fan is located in the second air duct, and the air outlet of the second fan is located in the accommodating groove.

3. The dustproof and heat dissipating television housing according to claim 2, wherein The first baffle is rotatably connected in the accommodating groove, the first baffle is composed of a first upper plate body and a first lower plate body, a right angle is formed between the first upper plate body and the first lower plate body, and the first lower plate body covers the communication part of the first air duct and the accommodating groove.

4. The dustproof and heat dissipating television housing according to claim 3, wherein The first coil spring is fixedly connected to the first baffle, and two ends of the first coil spring abut against the first lower plate body and the first air duct respectively.

5. The dustproof and heat dissipating television housing according to claim 4, wherein The second baffle is rotatably connected in the accommodating groove, the second baffle is composed of a second upper plate body and a second lower plate body, a right angle is formed between the second upper plate body and the second lower plate body, and the second lower plate body covers the air outlet of the second fan.

6. The dustproof and heat dissipating television housing according to claim 5, wherein The second coil spring is fixedly connected to the second baffle, and two ends of the second coil spring abut against the second lower plate body and the second air duct respectively.

7. The dustproof and heat dissipating television housing according to claim 6, wherein The clamping groove is formed in the accommodating groove, the clamping block extends from the mounting plate, and the clamping block is clamped into the clamping groove.

Images