Self-resetting power generation deviceTechnical Field
The invention belongs to the technical field of electrical and electronic switches, and particularly relates to a self-resetting power generation device.
Background
With the rapid development of modern home, passive switch controllers are gradually developed in the market in order to save the tedious steps of switch wiring. Typically by built-in batteries or self-generating modules. The self-generating module has the advantages of environmental protection, long service life and the like, and has market prospect. The wireless kinetic energy switch on the market at present utilizes the pressing self-generating module to provide the electric energy required by the signal processing device, and then controls corresponding equipment in a wireless signal transmission mode.
In the prior art, a power generation device of a self-generating switch usually adopts energy storage components such as springs and the like to realize resetting, so that the accuracy of a subsequent transmitting signal of the switch is realized. However, this has a problem in that the spring generates a corresponding elastic force in a state of being pressed against its movement, and the larger the pressing force is, the larger the elastic force is. The metal elastic sheet of the self-generating module can reduce the self-transient speed under the elastic buffering, thereby reducing the power generation voltage, and the spring has fatigue life after being obviously stressed and used for a long time, thereby influencing the subsequent power generation and normal use.
Disclosure of Invention
The embodiment of the invention aims to provide a self-resetting power generation device, which aims to solve the problems in the background art.
The embodiment of the invention is realized in such a way that the self-resetting power generation device comprises a base, a key board buckled on the base, a gland positioned between the base and the key board and forming a limiting space with the base, a metal pressing plate positioned in the limiting space, a self-generating module with a metal poking piece, and a PCB (printed circuit board) electrically connected with the self-generating module and provided with a touch key, wherein a limiting seat for fixing the self-generating module and a rotary supporting seat for fixing the metal pressing plate are arranged in the base:
a pressing part positioned at one side of the metal poking piece is arranged in the metal pressing plate;
the metal pressing plate rotates by taking the rotary supporting seat as a supporting point under the action of the first pressing column, and then the metal plectrum is pressed by the pressing part;
And one side of the metal pressing plate is provided with a magnet which is used for enabling the metal pressing plate which is separated from the action of the key plate to return to the original position.
Preferably, a plurality of magnet baffles for fixing the magnets are arranged in the base, and the magnets are arranged in the plurality of magnet baffles.
Preferably, a rotating shaft which is rotatably arranged on the base is arranged on one side of the key board.
Preferably, a rotating hole is formed in the base, and the key board is rotatably arranged in the rotating hole through the rotating shaft.
Preferably, the gland is provided with a through hole, and the first pressing column passes through the through hole and is abutted with the metal pressing plate.
Preferably, a rotating part which is rotationally fixed in the rotary supporting seat is arranged in the metal pressing plate.
Preferably, the gland is fixedly arranged on the base.
Preferably, the key board is provided with at least one key.
The working principle of the invention is as follows:
(1) The left side of the metal pressing plate is contacted with the magnet, the right side of the metal pressing plate is positioned above the metal plectrum and has a certain gap with the metal spacer, and the metal plectrum is positioned on the self-generating module;
(2) The first pressing column on the key board applies pressing force to the right side of the metal pressing plate, the metal pressing plate rotates by taking the rotary supporting seat as a supporting point under the action of the pressing force, at the moment, the right half part of the metal pressing plate moves downwards, the pressing part on the metal pressing plate downwards dials the metal poking plate, the magnetic flux in the self-generating module changes to generate electric energy, the second pressing column on the key board downwards presses the touch key on the PCB board, so that the PCB board and the self-generating module form a passage, and further control signals are transmitted to receiving equipment through circuit energy storage processing and signal processing;
(3) And in a return state, when no external force is applied, the left side of the metal pressing plate moves downwards under the action of the attraction force of the magnet, so that the metal pressing plate rotates again by taking the rotary supporting seat as a supporting point, the rotating direction of the metal pressing plate is opposite to the rotating direction in the working state, the right half part of the metal pressing plate moves upwards until the metal pressing plate returns to the initial state, the limiting space is used for limiting the movable stroke of the metal pressing plate, and at the moment, the metal plectrum is separated from the action of the metal pressing plate and also returns to the initial state.
According to the self-resetting power generation device provided by the embodiment of the invention, the metal pressing plate is rotatably arranged on the rotary supporting seat, so that a lever structure is formed. When the device works, the metal pressing plate rotates by taking the rotary supporting seat as a supporting point so as to press the metal plectrum downwards, so that the self-generating module generates electric energy, and when the device resets, the other end of the metal pressing plate is attracted by the magnet so that the metal pressing plate reversely rotates by taking the rotary supporting seat as the supporting point, and then the reset operation of the metal pressing plate and the metal plectrum is completed. The invention changes the existing mode of resetting the metal plectrum by adopting the spring, the attraction of the magnet to the metal plectrum can not be changed along with the change of the pressing force, the power generation voltage of the self-generating module is always kept stable, the service life of the magnet is longer than that of the spring, and the service life of the magnet is prolonged as compared with that of the self-resetting power generation device by adopting the spring.
The invention has simple structure, reasonable design of each part and small space occupation, can realize remote wireless transmission, does not need wiring for the wall switch, is convenient for the switch installation of a new house and the transformation of the wiring of an old house switch, converts mechanical energy into electric energy by utilizing the habitual action of people when fingers press the switch, and transmits a radio frequency control signal without a battery energy storage device.
Drawings
FIG. 1 is a schematic structural diagram of a self-resetting power generation device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an internal structure of a self-resetting power generation device according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a self-resetting power generation device according to an embodiment of the present invention;
FIG. 4 is a detailed schematic diagram of a self-resetting power generation device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a base according to an embodiment of the present invention;
FIG. 6 is a schematic view of a metal pressing plate according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a gland according to an embodiment of the present invention;
fig. 8 is an exploded view of a self-resetting power generation device according to an embodiment of the present invention.
In the drawing, 1, a base, 11, a rotary supporting seat, 12, a limit seat, 13, a rotary hole, 14, a magnet baffle, 2, a key board, 21, a first pressing column, 22, a second pressing column, 3, a gland, 31, a through hole, 4, a metal pressing plate, 41, a pressing part, 42, a rotary part, 5, a self-generating module, 51, a metal pulling sheet, 6, a magnet, 7, a PCB, 71, a light touch key and 8, a screw.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 4 and 8, the self-resetting power generation device provided by the embodiment of the invention comprises a base 1, a key board 2 buckled on the base 1, a gland 3 positioned between the base 1 and the key board 2 and forming a limiting space with the base 1, a metal pressing board 4 positioned in the limiting space, a self-generating module 5 with a metal pulling sheet 51, and a PCB 7 electrically connected with the self-generating module 5 and provided with a touch key 71, wherein a limiting seat 12 for fixing the self-generating module 5 and a rotary supporting seat 11 for fixing the metal pressing board 4 are arranged in the base 1:
a pressing part 41 positioned at one side of the metal poking piece 51 is arranged in the metal pressing plate 4;
A first pressing column 21 and a second pressing column 22 for applying pressing forces to the metal pressing plate 4 and the tact button 71 are respectively arranged in the key board 2, the metal pressing plate 4 rotates by taking the rotary supporting seat 11 as a supporting point under the action of the first pressing column 21, and then the metal pulling sheet 51 is pressed by the pressing part 41;
a magnet 6 is arranged on one side of the metal pressing plate 4 and is used for returning the metal pressing plate 4 which is separated from the action of the key plate 2 to the original position.
In practical application, the working principle of the self-resetting power generation device is as follows:
in the initial state, the left side of the metal pressing plate 4 is contacted with the magnet 6, the right side of the metal pressing plate is positioned above the metal poking plate 51 and has a certain gap with the metal spacer, and the metal poking plate 51 is positioned on the self-generating module 5;
(2) The key board 2 is pushed by a user to move downwards, a pressing force is applied to the right side of the metal pressing board 4 by the first pressing column 21 on the key board 2, the metal pressing board 4 rotates by taking the rotary supporting seat 11 as a supporting point under the action of the pressing force, at the moment, the right half part of the metal pressing board 4 moves downwards, the pressing part 41 on the metal pressing board 4 dials the metal poking piece 51 downwards, the magnetic flux in the self-generating module 5 changes with the downward movement to generate electric energy, the light touch key 71 on the PCB 7 is pressed downwards by the second pressing column 22 on the key board 2, the PCB 7 and the self-generating module 5 form a passage, and then a control signal is emitted to receiving equipment through circuit energy storage processing and signal processing;
(3) And in a return state, when no external force is applied, the left side of the metal pressing plate 4 moves downwards under the action of the attraction force of the magnet, so that the metal pressing plate 4 rotates again by taking the rotary supporting seat 11 as a fulcrum, the rotating direction is opposite to that of the working state, the right half part of the metal pressing plate 4 moves upwards until the metal pressing plate 4 returns to the initial state, the limiting space is used for limiting the movable stroke of the metal pressing plate 4, and at the moment, the metal pulling piece 51 is separated from the action of the metal pressing plate 4 and also returns to the initial state.
The present invention forms a lever structure by rotatably disposing the metal pressing plate 4 on the rotation support seat 11. When the device works, the metal pressing plate 4 rotates by taking the rotary supporting seat 11 as a supporting point, so that the metal pulling piece 51 is pressed down, the self-generating module 5 generates electric energy, and when the device resets, the other end of the metal pressing plate 4 is attracted by the magnet 6, so that the metal pressing plate 4 reversely rotates by taking the rotary supporting seat 11 as a supporting point, and then the resetting operation of the metal pressing plate 4 and the metal pulling piece 51 is completed. According to the invention, the existing mode of resetting the metal pulling piece 51 by using the spring is changed, the attractive force of the magnet 6 to the metal pulling piece 51 is not changed along with the change of the pressing force, the power generation voltage of the self-generating module 5 is always kept stable, the service life of the magnet 6 is longer than that of the spring, and the service life of the self-resetting power generation device by using the spring is prolonged.
The invention has simple structure, reasonable design of each part and small space occupation, can realize remote wireless transmission, does not need wiring for the wall switch, is convenient for the switch installation of a new house and the transformation of the wiring of an old house switch, converts mechanical energy into electric energy by utilizing the habitual action of people when fingers press the switch, and transmits a radio frequency control signal without a battery energy storage device.
As shown in fig. 5, as a preferred embodiment of the present invention, a plurality of magnet shields 14 for fixing the magnet 6 are provided in the base 1, and the magnet 6 is provided in the plurality of magnet shields 14.
Specifically, in this embodiment, two magnet shields 14 are provided on the base 1, and the magnet 6 is fixed between the two magnet shields 14.
As a preferred embodiment of the present invention, one side of the keypad 2 is provided with a rotation shaft rotatably provided on the base 1.
Specifically, the key sheet 2 is rotatably provided on the base 1 through a rotation shaft, and when the key sheet 2 is pressed down, the key sheet 2 rotates around the axis of the rotation shaft. The shape of the rotating shaft can be any rotary shape suitable for and conforming to the actual demands, such as a cylinder shape, a square column shape and the like.
As shown in fig. 4 and 5, as a preferred embodiment of the present invention, the base 1 is provided with a rotation hole 13 therein, and the key pad 2 is rotatably disposed in the rotation hole 13 by the rotation shaft.
Specifically, a plurality of rotating holes 13 are arranged in the base 1, and each rotating hole 13 corresponds to one rotating shaft.
As shown in fig. 7, as a preferred embodiment of the present invention, the gland 3 is provided with a through hole 31, and the first pressing post 21 passes through the through hole 31 to abut against the metal pressing plate 4.
Specifically, the first pressing column 21 is located above the metal pressing plate 4, and when the key is pressed, the first pressing column 21 moves downward to press the metal pressing plate 4. The through-holes 31 are arranged such that this action is not affected by the press cover 3, and the pressing force can be transmitted directly to the metal pressing plate 4 through the first pressing post 21.
As shown in fig. 6, as a preferred embodiment of the present invention, the metal pressing plate 4 is provided therein with a rotating portion 42 rotatably fixed in the rotary support 11.
Specifically, the rotating portion 42 in this example refers to protruding shafts on both sides of the metal pressing plate 4, and the metal pressing plate 4 is rotatably disposed in the rotary support base 11 through the protruding shafts, and the rotary support base 11, that is, a fulcrum at which the metal pressing plate 4 rotates.
As a preferred embodiment of the present invention, the gland 3 is fixedly disposed on the base 1.
Specifically, in this example, the gland 3 and the base 1 are fixed together by the screw 8, but the fixing manner between the two is not limited to this, and other fixing manners such as glue bonding may be adopted.
As shown in fig. 1, as a preferred embodiment of the present invention, the key pad 2 is provided with at least one key.
Specifically, the key sheet 2 in this example is provided with three keys.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.