Large-size ultra-thin EE-type reverse plug-in transformer for TV and use method of EE-type reverse plug-in transformer

Abstract

The invention discloses a large-size ultra-thin EE type reverse plug-in transformer for a TV and a use method of the EE type reverse plug-in transformer, and relates to the technical field of transformers, the EE type reverse plug-in transformer comprises a box body, a motor and a third frame body, magnetic cores are symmetrically installed on the inner walls of the two sides of the box body, the third frame body is installed at the bottom of the box body, and a control unit is installed on one side of the third frame body; motors are symmetrically installed on the two sides of the box body and are in electric signal connection with the control unit, lead screws are installed at the output ends of the motors, lifting rods are installed on the outer sides of the lead screws, dust sweeping mechanisms are arranged on the front faces of the lifting rods, and dust collecting mechanisms are arranged on the inner side of the third frame body. The internal temperature of the box body can be detected through the temperature sensing unit, an alarm can be given out through the buzzer when the temperature reaches a set value, meanwhile, the motor can drive the brush to move up and down to scrape dust on the front face of the box body and the outer sides of the cooling fins into the dust accumulation frame, and normal heat dissipation of the box body is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to an EE-type reverse plug-in transformer for a large-size ultra-thin TV and a use method thereof. Background Art

[0002] The EE-type transformer is a transformer with an E-shaped core structure. The two E-type cores are in opposite directions, that is, the two E-type cores are inserted reversely inside the box. The transformer will generate heat when working. Large-size ultra-thin TVs generally use thin transformers. In order to ensure the heat dissipation of the transformer, it is usually necessary to set heat dissipation holes on the battery casing. External dust can easily enter the TV casing through the heat dissipation holes and cover the transformer, affecting the normal heat dissipation of the transformer.

[0003] The defects of existing transformers are: 1. The prior art KR1020140010773A discloses a transformer, which does not have the function of giving an alarm when the temperature inside the transformer rises, and cannot clean the dust on the outside of the transformer when the temperature of the transformer rises. Therefore, a large-size ultra-thin EE-type reverse plug-in transformer for TV that can give an alarm when the temperature of the transformer rises and can clean the dust on the outer wall of the transformer is needed to solve this problem.

[0004] 2. The prior art KR1020150093401A discloses a transformer, which does not have a structure for collecting dust on the outside of the transformer. When the cleaning structure cleans the dust on the outside of the transformer, the dust is easily scattered to other components inside the TV housing, thereby affecting the heat dissipation of other components. Therefore, a large-size ultra-thin EE-type reverse-plug-in transformer for TV that can collect the cleaned dust is needed to solve this problem.

[0005] 3. The prior art KR1020140015993A discloses a transformer, which does not have a structure for collecting dust on the outside of the transformer. If a fixed collection structure is provided, the dust in the collection structure is not convenient to be discharged. Therefore, a large-size ultra-thin TV EE-type reverse plug-in transformer with a dust collection structure that is also convenient for discharging the dust in the collection structure is needed to solve this problem.

[0006] 4. The prior art CN112400208B discloses a transformer, which does not have a dust-blocking structure. When a dust-cleaning structure is provided on the outside of the transformer, the dust is easily dispersed to other places during dust cleaning, causing pollution to devices in other places. Therefore, a large-size ultra-thin EE-type reverse-plug-in transformer for TV that can reduce the dust dispersion range is needed to solve this problem. Summary of the invention

[0007] One purpose of the present application is to provide an EE-type reverse plug-in transformer for a large-size ultra-thin TV and a method of using the same, which can solve the technical problems raised in the prior art.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an EE type reverse plug-in transformer for large-size ultra-thin TV, comprising a box, a motor and a frame three, magnetic cores are symmetrically installed on the inner walls of both sides of the box, the frame three is installed on the bottom of the box, a control unit is installed on one side of the frame three, motors are symmetrically installed on both sides of the box, and the motors are connected to the control unit by electrical signals, a screw rod is installed on the output end of the motor, a lifting rod is installed on the outer side of the screw rod, and a dust sweeping mechanism is arranged on the front of the lifting rod; A dust collecting mechanism is arranged on the inner side of the frame body three.

[0009] Preferably, the magnetic core is of an "E"-shaped structure, a coil is wound around the middle column of the magnetic core, a plurality of heat dissipation fins are installed on the front of the box, blocks are symmetrically installed on both sides of the box, and the blocks are located outside the screw rod.

[0010] Preferably, a pipe is installed at the top input end of the box body, and a pipe cover is installed on the outside of the pipe.

[0011] Preferably, a temperature sensing unit is installed through the top of the box body, and the temperature sensing unit is electrically connected to the control unit; a buzzer is installed on the top of the box body, and the buzzer is electrically connected to the control unit.

[0012] Preferably, the dust sweeping mechanism includes a frame body, a brush and a fastener body, the back side of the frame body is connected to the front side of the lifting rod, a brush is installed through the back side of the frame body, a plurality of fastener bodies are installed through the top of the frame body, and one end of the fastener body passes through the top inner wall of the frame body.

[0013] Preferably, frame body 2 is installed on the front side of frame body 1, a plurality of fasteners 2 are installed through the front side of frame body 2, and one end of fastener 2 passes through the front inner wall of frame body 2, and a dust blocking cloth is installed on the inner side of frame body 2.

[0014] Preferably, the dust collecting mechanism includes a dust collection frame, an inclined plate, a limit groove, a limit rod, a plate body, a spring one and a spring two. The dust collection frame is slidably installed on the inner side of the frame body three, a plurality of springs two are installed on the back inner wall of the frame body three, an inclined plate is installed on the front inner wall of the dust collection frame, and limit grooves are symmetrically penetrated on both sides of the dust collection frame. Two limit rods are symmetrically penetrated and movably installed on both sides of the frame body three, and one end of the limit rod penetrates the inner wall of one side of the frame body three, one end of the limit rod is installed with a plate body, and a spring one is symmetrically installed on one side of the plate body, and one end of the spring one is connected to one side of the frame body three.

[0015] Preferably, a guide frame is installed on the front of the frame body three, and the guide frame is located on the outside of the dust blocking cloth, a counterweight frame is installed on the outside of the dust blocking cloth, and the counterweight frame is located below the dust blocking cloth, and a plurality of fasteners three are installed through the front of the counterweight frame.

[0016] Preferably, the method of using the EE type reverse plug-in transformer for large-size ultra-thin TV is as follows: S1. The temperature sensing unit detects the temperature of the oil inside the box. When the temperature rises to the set value, the buzzer sounds an alarm, and the motor drives the brush to move up and down to scrape the dust on the front of the box and the outside of the heat dissipation fins into the dust collection frame; S2. Dust-blocking cloth reduces the range of dust drifting to other places when it falls; S3. When the dust inside the dust storage frame needs to be discharged, the plate body is pulled outward to drive the limiting rod to move out of the limiting groove, and then the dust storage frame is pulled forward to facilitate dumping of the dust in the dust storage frame.

[0017] Preferably, the step S2 further includes the following steps: S21. The dust blocking cloth rises with the rise of the frame. When the frame moves down, the counterweight frame moves down under the action of gravity, thereby driving the dust blocking cloth to move down.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can detect the internal temperature of the box through the temperature sensing unit. When the temperature reaches the set value, an alarm can be sounded through the buzzer. At the same time, the motor can drive the brush to move up and down to scrape the dust on the front of the box and the outside of the heat dissipation fins into the dust collection frame to ensure normal heat dissipation of the box.

[0019] 2. The present invention can collect dust brushed off by the brush through the dust collection frame, thereby preventing the dust from falling on other components inside the TV housing and affecting the heat dissipation of other components.

[0020] 3. When the dust inside the dust frame needs to be cleaned, the present invention only needs to pull the plate from the outside to pull the limiting rod out of the limiting groove, so that the dust frame can be taken out from the frame body three, thereby conveniently dumping the dust in the dust frame.

[0021] 4. The present invention can reduce the range of dust dispersion when the brush cleans the front of the box by setting the dust blocking cloth, thereby reducing the dust from falling to other places and allowing more dust to fall into the dust collection frame. At the same time, the dust blocking cloth can avoid blocking the front of the box when moving downward, thereby ensuring normal heat dissipation of the front of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A perspective view of the present invention; Figure 2It is a front cross-sectional view of the box body of the present invention; Figure 3 It is a schematic diagram of the box structure of the present invention; Figure 4 It is a schematic diagram of the motor structure of the present invention; Figure 5 It is a schematic diagram of the lifting rod structure of the present invention; Figure 6 It is a schematic diagram of a structure of a frame of the present invention; Figure 7 It is a schematic diagram of the third structure of the frame of the present invention; Figure 8 It is a three-dimensional front cross-sectional view of the frame of the present invention; Fig. 9 The figure is a flow chart of the method for using the present invention.

[0023] In the figure: 1. box body; 2. magnetic core; 3. coil; 4. pipe; 5. pipe cover; 6. temperature sensor unit; 7. buzzer; 8. heat sink fin; 9. motor; 10. screw rod; 11. block; 12. lifting rod; 13. frame body 1; 14. brush; 15. fastener 1; 16. frame body 2; 17. fastener 2; 18. dust blocking cloth; 19. frame body 3; 20. control unit; 21. dust collection frame; 22. guide frame; 23. inclined plate; 24. limit groove; 25. limit rod; 26. plate body; 27. spring 1; 28. counterweight frame; 29. ​​fastener 3; 30. spring 2. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; It includes a box body 1, a coil 3 and a block body 11. The inner walls of both sides of the box body 1 are symmetrically installed with magnetic cores 2. The magnetic core 2 is an "E"-shaped structure. The coil 3 is wound on the middle column of the magnetic core 2. A plurality of heat dissipation fins 8 are installed on the front of the box body 1. Blocks 11 are symmetrically installed on both sides of the box body 1, and the block 11 is located on the outside of the screw rod 10. The box body 1 can provide an installation position for other components of the device. The box body 1 adopts a thin rectangular design, which is more suitable for installation inside an ultra-thin TV. The magnetic core 2 can provide an installation position for the coil 3. The number of turns of the coil 3 on the two magnetic cores 2 on the left and right sides is different, thereby realizing the rise and fall of voltage. The heat dissipation fins 8 increase the heat dissipation area and accelerate the dissipation of heat on the box body 1. The block body 11 can provide support for one end of the screw rod 10.

[0028] See also Figure 1 , Figure 3 , Figure 4 , Figure 7 and Figure 8 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; It includes a frame body 3 19 and an ash collecting mechanism. The frame body 3 19 is installed at the bottom of the box body 1, a control unit 20 is installed on one side of the frame body 3 19, and an ash collecting mechanism is arranged on the inner side of the frame body 3 19. The ash collecting mechanism includes a dust collecting frame 21, an inclined plate 23, a limiting groove 24, a limiting rod 25, a plate body 26, a spring 1 27 and a spring 2 30. The dust collecting frame 21 is slidably installed on the inner side of the frame body 3 19, a plurality of springs 2 30 are installed on the back inner wall of the frame body 3 19, an inclined plate 23 is installed on the front inner wall of the dust collecting frame 21, and limiting grooves 24 are symmetrically penetrated on both sides of the dust collecting frame 21. Two limiting rods 25 are symmetrically penetrated and movably installed on both sides of the frame body 3 19, and one end of the limiting rod 25 penetrates the inner wall of one side of the frame body 3 19, and a plate body 26 is installed on one end of the limiting rod 25. A spring 1 27 is symmetrically installed on one side of the plate body 26, and one end of the spring 1 27 is connected to one side of the frame body 3 19. , frame three 19 can provide an installation position for the dust frame 21, the control unit 20 is a controller, which can receive the signal of the temperature sensor unit 6, and can control the buzzer 7 and the motor 9 at the same time, the dust frame 21 plays a role in collecting dust, the inclined plate 23 can reduce the dust inside the dust frame 21 from floating out under the action of slight wind, the limit groove 24 can provide an insertion position for the limit rod 25, one end of the limit rod 25 in the limit groove 24 can prevent the dust frame 21 from falling off from the frame three 19, the plate body 26 can provide an installation position for the spring one 27, the spring one 27 can apply a pulling force to the plate body 26, so that the limit rod 25 can be stably inserted into the limit groove 24, the spring two 30 can apply pressure to the back of the dust frame 21, so that the dust frame 21 can extend forward as far as possible and contact the shell of the TV in front, thereby increasing the area for receiving the fallen dust as much as possible.

[0029] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; The box body 1 includes a motor 9 and a dust sweeping mechanism. The motor 9 is symmetrically installed on both sides of the box body 1, and the motor 9 is electrically connected to the control unit 20. A screw rod 10 is installed at the output end of the motor 9. A lifting rod 12 is installed on the outside of the screw rod 10. The front of the lifting rod 12 is provided with a dust sweeping mechanism. The dust sweeping mechanism includes a frame body 13, a brush 14 and a fastener 15. The back of the frame body 13 is connected to the front of the lifting rod 12. The brush 14 is installed through the back of the frame body 13. A plurality of fasteners 15 are installed through the top of the frame body 13. , and one end of the fastener 15 passes through the top inner wall of the frame 13, the motor 9 can convert electrical energy into kinetic energy, thereby driving the screw 10 to rotate, the screw 10 can drive the lifting rod 12 to move up and down by rotating, the lifting rod 12 can drive the frame 13 to move up and down by moving up and down, the frame 13 can drive the brush 14 to move up and down by moving up and down, the brush 14 can clean the dust on the front of the box 1 and the heat dissipation fins 8 by moving up and down, and the fastener 15 is a bolt, which can squeeze and fix the brush 14.

[0030] See also Figure 1 and Figure 2 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; It includes a pipeline 4, the top input end of the box body 1 is installed with the pipeline 4, the outer side of the pipeline 4 is installed with a pipe cover 5, the top of the box body 1 is penetrated with a temperature sensing unit 6, and the temperature sensing unit 6 is electrically connected to the control unit 20, a buzzer 7 is installed on the top of the box body 1, and the buzzer 7 is electrically connected to the control unit 20, the pipeline 4 can provide a path for the oil to enter and leave the box body 1, the pipe cover 5 plays the role of closing the pipeline 4, the temperature sensing unit 6 is a temperature sensor, which can detect the temperature of the oil inside the box body 1, and the buzzer 7 can emit an alarm sound.

[0031] See also Figure 1 and Figure 3 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; It includes a frame body 16, and the front of the frame body 13 is installed with the frame body 16. The front of the frame body 16 is penetrated by a plurality of fasteners 17, and one end of the fasteners 17 penetrates the front inner wall of the frame body 16. A dust blocking cloth 18 is installed on the inner side of the frame body 16. The frame body 16 can provide an installation position for the dust blocking cloth 18. The fasteners 17 are bolts, which can squeeze and fix the dust blocking cloth 18. The dust blocking cloth 18 can reduce the range of dust dispersion.

[0032] See also Figure 1 , an embodiment provided by the present invention: an EE type reverse plug-in transformer for large-size ultra-thin TV; It includes a guide frame 22, the front of the frame body 19 is installed with the guide frame 22, and the guide frame 22 is located on the outside of the dust blocking cloth 18, the outside of the dust blocking cloth 18 is installed with a counterweight frame 28, and the counterweight frame 28 is located below the dust blocking cloth 18, and a plurality of fasteners three 29 are installed through the front of the counterweight frame 28, the guide frame 22 can provide guidance for the dust blocking cloth 18 so that the dust blocking cloth 18 can move up and down, the counterweight frame 28 can drive the dust blocking cloth 18 to move downward under the action of gravity, and the fasteners three 29 can ensure the stability of the connection between the dust blocking cloth 18 and the counterweight frame 28 by squeezing the dust blocking cloth 18.

[0033] The usage of EE type reverse plug-in transformer for large size ultra-thin TV is as follows: S1, the temperature sensing unit 6 detects the temperature of the oil inside the box 1. When the temperature rises to the set value, the buzzer 7 emits an alarm sound, and at the same time, the motor 9 drives the brush 14 to move up and down to scrape the dust on the front of the box 1 and the outside of the heat dissipation fins 8 into the dust collection frame 21; S2, dust blocking cloth 18 reduces the range of dust drifting to other places when it falls; S3. When the dust inside the dust frame 21 needs to be discharged, the plate 26 is pulled outward to drive the limiting rod 25 to move out of the limiting groove 24, and then the dust frame 21 is pulled forward to facilitate dumping of the dust in the dust frame 21.

[0034] S2 also includes the following steps: S21, the dust blocking cloth 18 rises with the rise of the frame 13. When the frame 13 moves downward, the counterweight frame 28 moves downward under the action of gravity, thereby driving the dust blocking cloth 18 to move downward.

[0035] Working principle: Before using the EE type reverse plug-in transformer for large-size ultra-thin TV, you should first check whether there are any problems that affect the use of the EE type reverse plug-in transformer for large-size ultra-thin TV. The temperature sensing unit 6 detects the temperature of the oil inside the box body 1. When the temperature rises to the set value, the buzzer 7 emits an alarm sound. At the same time, the motor 9 drives the brush 14 to move up and down to scrape the dust on the front of the box body 1 and the outside of the heat dissipation fins 8 into the dust frame 21. The dust blocking cloth 18 reduces the range of dust drifting to other places when it falls. The dust blocking cloth 18 rises with the rise of the frame body 13. When the frame body 13 moves down, the counterweight frame 28 moves down under the action of gravity, thereby driving the dust blocking cloth 18 to move down. When it is necessary to discharge the dust inside the dust frame 21, the plate body 26 is pulled outward to drive the limit rod 25 to move out of the limit groove 24, and then the dust frame 21 is pulled forward to facilitate the dumping of the dust in the dust frame 21.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference signs in the claims should not be regarded as limiting the rights involved.

Claims

1. A large-size ultra-thin EE type reverse plug-in transformer for TV, characterized in that: The invention comprises a box (1), a motor (9) and a frame three (19), wherein magnetic cores (2) are symmetrically mounted on the inner walls of both sides of the box (1), a frame three (19) is mounted on the bottom of the box (1), a control unit (20) is mounted on one side of the frame three (19), motors (9) are symmetrically mounted on both sides of the box (1), and the motor (9) and the control unit (20) are connected by electrical signals, a screw rod (10) is mounted on the output end of the motor (9), a lifting rod (12) is mounted on the outer side of the screw rod (10), and a dust sweeping mechanism is arranged on the front side of the lifting rod (12); A dust collecting mechanism is arranged on the inner side of the frame body three (19).

2. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 1, characterized in that: The magnetic core (2) is of an "E"-shaped structure, a coil (3) is wound on the middle column of the magnetic core (2), a plurality of heat dissipation fins (8) are installed on the front of the box (1), blocks (11) are symmetrically installed on both sides of the box (1), and the blocks (11) are located outside the screw rod (10).

3. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 1, characterized in that: A pipe (4) is installed at the top input end of the box body (1), and a pipe cover (5) is installed on the outside of the pipe (4).

4. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 1, characterized in that: A temperature sensing unit (6) is installed through the top of the box (1), and the temperature sensing unit (6) is electrically connected to the control unit (20); a buzzer (7) is installed on the top of the box (1), and the buzzer (7) is electrically connected to the control unit (20).

5. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 1, characterized in that: The dust sweeping mechanism comprises a frame body (13), a brush (14) and a fastener (15); the back side of the frame body (13) is connected to the front side of the lifting rod (12); the brush (14) is installed through the back side of the frame body (13); a plurality of fasteners (15) are installed through the top side of the frame body (13); and one end of the fastener (15) passes through the inner wall of the top side of the frame body (13).

6. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 5, characterized in that: The front face of the frame body 1 (13) is provided with a frame body 2 (16), the front face of the frame body 2 (16) is penetrated by a plurality of fasteners 2 (17), and one end of the fasteners 2 (17) penetrates the front inner wall of the frame body 2 (16), and a dust blocking cloth (18) is installed on the inner side of the frame body 2 (16).

7. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 1, characterized in that: The dust collecting mechanism comprises a dust collecting frame (21), an inclined plate (23), a limiting groove (24), a limiting rod (25), a plate body (26), a spring 1 (27) and a spring 2 (30). The dust collecting frame (21) is slidably mounted on the inner side of the frame body 3 (19). A plurality of springs 2 (30) are mounted on the back inner wall of the frame body 3 (19). The inclined plate (23) is mounted on the front inner wall of the dust collecting frame (21). The limiting grooves (24) are symmetrically penetrated on both sides of the dust collecting frame (21). Two limiting rods (25) are symmetrically penetrated and movably mounted on both sides of the frame body 3 (19). One end of the limiting rod (25) penetrates the inner wall of one side of the frame body 3 (19). One end of the limiting rod (25) is mounted on the plate body (26). One side of the plate body (26) is symmetrically mounted with a spring 1 (27), and one end of the spring 1 (27) is connected to one side of the frame body 3 (19).

8. The EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 6, characterized in that: A guide frame (22) is installed on the front of the frame body (19), and the guide frame (22) is located outside the dust blocking cloth (18). A counterweight frame (28) is installed on the outside of the dust blocking cloth (18), and the counterweight frame (28) is located below the dust blocking cloth (18). A plurality of fasteners (29) are installed through the front of the counterweight frame (28).

9. The method for using the EE type reverse plug-in transformer for large-size ultra-thin TV according to any one of claims 1 to 8, characterized in that: The method of using the EE type reverse plug-in transformer for large-size ultra-thin TV is as follows: S1, the temperature sensing unit (6) detects the temperature of the oil inside the box (1), and when the temperature rises to a set value, the buzzer (7) emits an alarm sound, and at the same time the motor (9) drives the brush (14) to move up and down to scrape the dust on the front of the box (1) and the outside of the heat dissipation fins (8) into the dust collection frame (21); S2, dust blocking cloth (18) to reduce the range of dust drifting to other places when it falls; S3. When it is necessary to discharge the dust inside the dust storage frame (21), the plate body (26) is pulled outward to drive the limiting rod (25) to move out of the limiting groove (24), and then the dust storage frame (21) is pulled forward to facilitate dumping of the dust in the dust storage frame (21).

10. The method for using the EE type reverse plug-in transformer for large-size ultra-thin TV according to claim 9, characterized in that: The step S2 also includes the following steps: S21, the dust blocking cloth (18) rises as the frame body (13) rises. When the frame body (13) moves downward, the counterweight frame (28) moves downward under the action of gravity, thereby driving the dust blocking cloth (18) to move downward.

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