[0019] The technical solutions of the present invention will be further described in detail below through the accompanying drawings and embodiments.
[0020] figure 1 It is an exploded view of the control device of the present invention. As shown in the figure, the control device includes:
[0021] Case 8, sliding sheet 4, magnetic steel 2, protective cover 1, and Hall switch board 5.
[0022] The housing 8 has a sliding rail 9 and a through hole, through which the optical head of the optical machine housed in the housing 8 penetrates;
[0023] Specifically, the casing 8 is a carrier for other components. For example, the casing 8 carries a slide rail 9 and a through hole, and the position of the through hole is the same as the optical head of the optical machine arranged in the casing 8. Corresponding to the position, the light beam emitted by the optical handpiece penetrates through the through hole.
[0024] The sliding piece 4 is slidably arranged in the sliding rail 9 and slidably connected with the casing 8;
[0025] Specifically, the sliding sheet 4 is slidably arranged in the sliding rail 9 and is slidably connected to the casing 8 through the sliding rail 9. The sliding piece 4 is slid in front of the through hole on the sliding rail 9. The protective cover 1 is placed in front of the sliding piece 4 to cover the optical head. When the sliding piece 4 slides to the front of the Hall switch board 5, The Hall switch board 5 senses the magnetic field generated by the magnetic steel 2 installed on the protective cover 1 and generates an electrical signal, thereby conducting the main board current.
[0026] The magnetic steel 2 is fixed on the sliding plate 4;
[0027] Specifically, the magnetic steel 2 is fixed on the sliding sheet 4 and located inside the protective cover 1, and the position of the magnetic steel corresponds to the position of the Hall switch plate. The magnet 2 is used in conjunction with the Hall switch board 5. When the magnet 2 reaches the sensing area of the Hall switch board 5, the magnet 2 acts on the Hall switch board 5 to connect to the main board circuit, and then the entire drive system Start to work, the optical machine starts to run to realize the boot of the screenless TV. The magnetic steel 2 and the protective cover 1 can be connected by screws or glued.
[0028] The protective cover 1 is arranged on the sliding sheet 4 so as to accommodate the magnetic steel 2;
[0029] Specifically, the protective cover 1 is mainly used to protect the optical machine lens, and its shape and size should match the optical machine lens.
[0030] The Hall switch board 5 has a Hall switch and is fixed on the casing 8;
[0031] Furthermore, the present invention also includes an anti-wear strip 3 located on the inner edge of the protective cover 1 and used to prevent the casing 8 from being scratched. The shape of the wear-resistant strip 3 matches the shape of the inner side of the protective cover 1 so that the protective cover 1 and the casing 8 can be separated. At the same time, the wear-resistant strip 3 can also function to fix the position of the protective cover 1 and prevent the protective cover 1 from sliding on the slide rail 9 due to gravity.
[0032] In addition, the magnetic steel 2 and the protective cover 1 are connected by screws or glue, and the slide rail 9 and the protective cover 1 are connected by screws or glue.
[0033] Further, the electrical signal generated by the Hall switch sensing the magnetic field of the magnet 2 is sent to the control unit to generate a power-on signal.
[0034] Specifically, the Hall switch on the Hall switch board 5 senses the magnetic field generated by the magnet 2 to generate an electric signal, which is sent to the control unit, and after the control unit passes the electric signal detection, Generate the power-on signal to generate the motherboard current, that is, the power-on current.
[0035] In general, when the screenless TV is in a non-working state, the protective cover 1 should be located at the front of the optical head to cover the optical head to protect the optical head, and of course it can also be dustproof. When you need to turn on the machine, you can slide the protective cover 1 to drive the sliding piece 4 to move on the track. The protective cover 1 moves away from the optical handpiece and slides toward the Hall switch plate 5. When the inside of the protective cover 1 is attached to the sliding piece 4 When the upper magnet 2 is at the corresponding position of the Hall switch of the Hall switch board 5, it reaches the open position. The Hall switch on the Hall switch board 5 senses the magnetic field generated by the magnet steel 2 to generate an electric signal, which is sent to the control unit, and the control unit generates a power-on signal after passing the electric signal detection, thereby generating the main board The current is the start-up current, so as to realize the conduction of the circuit. After the main board circuit is turned on, the drive system just starts to work, and the screenless TV starts successfully.
[0036] figure 2 This is a schematic diagram of the sliding boot of the control device of the present invention. As shown in the figure, when the screenless TV is in a non-working state, the position of the protective cover 1 is located at the front of the optical head, and the optical head is closed to protect the light. The nose is of course also dustproof.
[0037] When you need to turn on the machine, you can slide the protective cover 1 to drive the sliding piece 4 to move on the track. The protective cover 1 moves away from the optical handpiece and slides toward the Hall switch plate 5. When the inside of the protective cover 1 is attached to the sliding piece 4 When the upper magnet 2 is at the corresponding position of the Hall switch of the Hall switch board 5, it reaches the open position. The Hall switch on the Hall switch board 5 senses the magnetic field generated by the magnet steel 2 to generate an electric signal, which is sent to the control unit, and the control unit generates a power-on signal after passing the electric signal detection, thereby generating the main board The current is the start-up current, so as to realize the conduction of the circuit. After the main board circuit is turned on, the drive system just starts to work, and the screenless TV starts successfully.
[0038] image 3 It is a schematic diagram of the sliding shutdown of the control device of the present invention. As shown in the figure, when the screenless TV is in working condition, the position of the protective cover 1 should be at the front of the Hall switch board 5, and the magnet 2 is on the Hall switch board. 5 within the magnetic field sensing area.
[0039] When you need to shut down, you can slide the protective cover 1 to drive the slide 4 to move on the track. The protective cover 1 moves away from the Hall switch plate 5 and slides toward the optical head. When the protective cover 1 is attached to the slide 4 The upper magnet 2 is located at the front of the optical head and when the optical head is closed, it reaches the shutdown position. The Hall switch on the Hall switch board 5 senses the change in the magnetic field generated by the magnet 2 and generates a shutdown electrical signal. The shutdown electrical signal is sent to the control unit, and the control unit generates a shutdown after passing the electrical signal detection. Signal, thereby disconnecting the main board current, in order to achieve the circuit breaker. When the main board circuit is disconnected, the drive system stops working, and the screenless TV is shut down successfully.
[0040] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in further detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. The protection scope, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
