Patent Description:
Self-powered technology is a new type of power supply technology that converts oscillation energy or magnetic field energy or the like into electrical energy, thereby driving electronic devices with low power consumption to be operated. By virtue of the self-powered technology, zero power consumption can be effectively achieved, costs on assembling and usage are saved, and the environment is protected.

Currently, self-powered technology has been gradually applied to products such as switches, doorbells and remote controls of electronic devices, and a self-powered device disclosed in a Chinese invention patent publication No. <CIT>. However, during a using process of the self-powered device, it is found that, the structure for accommodating piezoelectric patch is arranged on a bottom shell or a top shell, when the self-powered device is attached to a wall, or be placed on a desktop, or be assembled into a box or be held by hand, the power generations of the self-powered device are significantly different. The consistency of power supplying cannot be guaranteed. According to a research experiment, it is found that the root of the problem is that an oscillation mechanism is restricted by the bottom shell or the top shell. In the restricted state, a power waveform output of the self-generation device after bridge rectification is shown in <FIG>, this restriction is related to the environment of placement, installation and use, and it is impossible to require users to use the self-powered device in constant environment in the process of actual use. <CIT> discloses a self-power generation module and a wireless control switch, the self-power generation module includes: a housing, a power generation mechanism, a driving arm and an elastic reset member; the power generation mechanism is located in the housing, the driving arm is pivotally connected to the housing and connected to the power generation mechanism, the driving arm is configured to interact with the elastic reset member and cause the power generation mechanism to generate electricity when rotating. The elastic reset member is located between the driving arm and the housing, and in the relaxed state of the elastic reset member, a gap is formed at least one of between a first elastic end and a pressureapplying surface and between a second elastic end and a pressure-bearing surface. The driving arm is not subject to a reverse elastic force of the elastic reset member in the initial state of being pressured, that is, in the initial state, it is not hindered by the elastic reset member, effectively reducing the initial operating force of the driving arm, so that the driving arm to which the self-power generation module is applied requires small operating force when being pressed. <CIT> discloses a four-sided-synchronous-swing dual-mode broadband power generation device, comprising a fixing frame, a piezoelectric beam swing mechanism, and electromagnetic induction power generators. Four groups of straight piezoelectric beams and L-shaped piezoelectric beams are installed in a small space, therefore, a limited working space can be fully utilized, the working area can be reduced, and the requirements for development of a microelectromechanical system can be satisfied. Each L-shaped piezoelectric beam comprises a horizontal beam and a vertical beam, so that vibration in two directions can be implemented, therefore, the dynamic behavior of piezoelectric cantilevers is enriched, and the power generation efficiency of the system is improved. The straight piezoelectric beams and L-shaped piezoelectric beams have different lengths, so that energy of different swing frequencies can be effectively harvested, and the effective working frequency bandwidth can be broadened. The adjacent straight piezoelectric beams, L-shaped piezoelectric beams, and electromagnetic induction power generators constitute four groups of dual-mode piezoelectric electromagnetic composite power generation structures, effectively improving power generation. The four-sided-synchronous-swing dual-mode broadband power generation device can harvest energy inputted in the form of rotation from environment and currently can be applied to wind power generation, hydroelectric power generation, bicycle self-power supply, and other fields. <CIT> discloses a keyboard including a plurality of keys, each key has a key top, a guiding structure that includes linking units pivotally movable in response to vertical motion of the key top, an elastic member to be pressed down by the vertical motion of the key top, and a contact which is operatively associated with the vertical motion of the key top. The guiding structure includes a common unit which is shared with all the other keys.

One objective of the present application is to provide a self-powered device, which aims to solve a technical problem that the vibration structure of the existing self-powered device is restricted by a bottom shell or a top shell.

In order to achieve the above-mentioned objective, a self-powered device is provided in the present application, the self-powered device includes a a triggering structure. The triggering structure includes a first lever structure, the first lever structure includes a first support part and a first triggering member, the first triggering member includes a first power part, a first resistance part and a first connection part. The first power part and the first resistance part are arranged on opposite sides of the first connection part respectively. The first connection part is rotatably connected to the first support part to form a first revolute. The self-powered device further includes: a bottom shell, the first support part is arranged on an inner wall of the bottom shell; and a top cover, the top cover and the bottom shell are enclosed to form a mounting cavity, the first triggering member and the self-generation structure are accommodated in the mounting cavity. The self-powered device further includes: a circuit board arranged on a surface of the first power part facing the top cover; and a first group of buttons. The first group of buttons includes a plurality of first buttons arranged to be spaced apart on the top cover, bottom ends the plurality of first buttons are abutted against the circuit board and are spaced at an equal distance from the first connection part.

The self-powered device further includes a self-generation structure arranged on the first resistance part.

When the first power part is driven by an external force to rotate around an axis of the first revolute and towards a side of the first support part, the first resistance part is rotated around the axis of the first revolute in a direction opposite to a rotation direction of the first power part, in order that the self-generation structure is triggered in a suspended state and generates electrical energy.

In one embodiment, a first force-bearing part is arranged on the first power part, the triggering structure further includes a second lever structure, the second lever structure includes a second support part and a second triggering member. The second support part is arranged on the first power part and is located at a one-half position of a power arm of the first force-bearing part, the second triggering member is accommodated in the mounting cavity, and the second triggering member includes a second power part, a second resistance part and a second connection part. The second power part and the second resistance part are located on opposite sides of the second connection part, respectively. The second force-bearing part is arranged on the second power part, the second resistance part is abutted against the top cover or the bottom shell so as to form a pivot point. The second connection part is rotatably connected to the second support part so as to form a second revolute, a power arm of the second force-bearing part is twice of a resistance arm of the second revolute in length.

In one embodiment, an avoidance groove is further arranged on the first power part. The avoidance groove penetrates through the first power part and is located between the first connection part and the first force-bearing part, and the second support part is formed on a groove wall of the avoidance groove adjacent to the first force-bearing part. The second resistance part is abutted against the top cover, and the second power part is positioned to correspond to the avoidance groove.

When the second force-bearing part is driven by an external force to approach towards a bottom wall of the bottom shell by rotating around the pivot point, the second revolute drives the first power part to rotate around the axis of the first revolute and towards the bottom wall of the bottom shell.

A distance of rotation of the first power part driven by the second force-bearing part is equal to a distance of rotation of the first power part driven by the first force-bearing part under a same magnitude of external force.

In one embodiment, an avoidance groove is further arranged on the first power part. The avoidance groove penetrates through the first power part and is located between the first connection part and the first force-bearing part, and the second support part is formed on a groove wall of the avoidance groove adjacent to the first force-bearing part; the second resistance part is abutted against the first power part and the top cover. The second power part is positioned to correspond to the avoidance groove, and a third force-bearing part is arranged on the second resistance part.

When the third force-bearing part is driven by an external force towards the bottom wall of the bottom shell, the second resistance part is pressed against the first power part and is rotated around the axis of the first revolute and towards the bottom wall of the bottom shell. When the second force-bearing part is driven by an external force to approach towards the bottom wall of the bottom shell around the pivot point, the second revolute drives the first power part to rotate around the axis of the first revolute and towards the bottom wall of the bottom shell.

A distance of rotation of the first power part driven by the third force-bearing part is equal to a distance of rotation of the first power part driven by the second force-bearing part under the same magnitude of external force.

In one embodiment, an avoidance groove is further arranged on the first power part. The avoidance groove penetrates through the first power part and is located between the first connection part and the first force-bearing part, and the second support part is formed on a groove wall of the avoidance groove adjacent to the first force-bearing part, the second resistance part penetrates through the avoidance groove and is abutted against the bottom shell.

When the second force-bearing part is driven by an external force to approach towards the first power part around the pivot point, the second revolute drives the first power part to rotate around the axis of the first revolute and towards the bottom wall of the bottom shell.

A distance of rotation of the first power part driven by the second force-bearing part is equal to a distance of rotation of the first power part driven by the first force-bearing part under the same magnitude of external force.

In one embodiment, a self-powered device is provided, the self-powered device includes:.

The self-powered device further includes a first group of buttons, the first group of buttons includes a plurality of first buttons which are arranged to be spaced apart on the top cover, bottom ends of the plurality of first buttons are abutted against the circuit board.

The self-powered device further includes a second group of buttons which are arranged to be spaced from the first group of buttons and are located on one side of the first group of buttons adjacent to the first support part. The second group of buttons includes a plurality of second buttons which are arranged to be spaced apart on the top cover, and bottom ends of the plurality of second buttons are abutted against the circuit board.

A spacing between the bottom ends of the plurality of first buttons and an edge of the first end of the circuit board is equal to a spacing between the bottom ends of the plurality of second buttons and an edge of the second end of the circuit board.

In one embodiment, a self-powered device is further provided, the self-powered device includes:.

The self-powered device further includes a first group of buttons, the first group of buttons includes a plurality of first buttons arranged to be spaced apart on the top cover, and bottom ends of the plurality of first buttons are abutted against the circuit board.

The self-powered device further includes a second group of buttons arranged to be spaced from the first group of buttons and located on one side of the first group of buttons adjacent to the first support part. The second group of buttons includes a plurality of second buttons arranged to be spaced apart on the top cover, and bottom ends of the plurality of second buttons are abutted against the circuit board.

In one embodiment, the self-generation structure is a piezoelectric power generation structure.

In one embodiment, the self-generation structure is a magnet generator structure.

The beneficial effects of the self-powered device according to the embodiment of the present application are reflected in that, the first lever structure is used to trigger the self-generation structure, the first power part is used to receive an external force and drive the self-generation structure arranged on the first resistance part to be suspended, in order that the self-generation structure generates electrical energy in the suspended state. Thus, the restriction of the self-generation structure by the bottom shell or the top shell is avoided, and the technical problem that the oscillation structure of the existing self-generation device is restricted by the bottom shell or the top shell is solved, and the efficiency and the stability of the self-generation of the self-powered device are effectively improved.

In order to describe the embodiments of the present application more clearly, a brief introduction regarding the accompanying drawings that need to be used for describing the embodiments or existing technologies is given below.

In order to make the technical problems, the technical solutions and the beneficial effects of the present application be clearer and more understandable, the present application will be further described in detail below with reference to the embodiments.

It needs to be noted that, when one component is described to be "fixed to" or "arranged on" another component, this component may be directly or indirectly arranged on another component. When it is described that one component "is connected with" another component, this component may be directly or indirectly connected to the another component. Directions or location relationships indicated by terms such as "length", "width", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and so on are the directions or location relationships shown in the accompanying figures, and are only intended to describe the present application conveniently and are for the purpose of conciseness of the description, but should not be interpreted as indicating or implying that a device or a component indicated by the terms must have specific locations and be constructed and manipulated according to the specific locations. Therefore, these terms shouldn't be considered as limitation to the present application. In addition, terms such as "the first" and "the second" are only used for the purpose of illustration, and thus should not be considered as indicating or implying any relative importance, or implicitly indicating the plurality of indicated technical features. Thus, technical feature(s) restricted by "the first" or "the second" can explicitly or implicitly comprise one or more such technical feature(s). In the description of the present application, a term "a plurality of" has the meaning of at least two, unless otherwise there is additional explicit and specific limitation for the term of "a plurality of'.

Referring to <FIG>, <FIG>, <FIG>, <FIG> and <FIG> together, a self-powered device <NUM> provided by this embodiment includes a triggering structure and a self-generation structure <NUM>. The triggering structure includes a first lever structure, the first lever structure includes a first support part <NUM> and a first triggering member <NUM>, the first triggering member <NUM> includes a first power part <NUM>, a first resistance part <NUM> and a first connection part <NUM>, the first power part <NUM> and the first resistance part <NUM> are located on opposite sides of the first connection part <NUM>, respectively. The first connection part <NUM> is rotatably connected to the first support part <NUM> so as to form a first revolute <NUM>, and the self-generation structure <NUM> is arranged on the first resistance part <NUM>. When the first power part <NUM> is driven by an external force to rotate around an axis of the first revolute <NUM> and towards a side of the first support part <NUM>, the first resistance part <NUM> rotates around the axis of the first revolute <NUM> in a direction opposite to a rotation direction of the first power part <NUM>, such that the self-generation structure <NUM> is caused to be triggered and generate electrical energy in a suspended state. It can be understood that the first revolute <NUM> is actually a pivot point of swing of the first triggering member <NUM>.

In particular, the first support <NUM> may be a convex rib having a rounded top, or be one or multiple projection(s) arranged to be spaced and having spherical crown shaped top(s), and the first connection <NUM> may be an arcuate recess matching with the top of the first support part <NUM>. The first support part <NUM> is lapped or engaged with the top of the first connection part <NUM>, so that the first connection part <NUM> is rotatably connected to the first support part <NUM> to form the first revolute <NUM>, and the first triggering member <NUM> can be swung up and down by taking the first revolute <NUM> as a pivot point. In a practical application, when a user applies pressure to the first power part <NUM>, as shown in <FIG> and <FIG>, the first power part <NUM> will be rotated downwards around the axis of the first revolute <NUM>, while the first resistance part <NUM> will be rotated upwards around the axis of the first revolute <NUM>, such that the self-generation structure <NUM> is driven to be suspended and is triggered to generate electrical energy. In this embodiment, the self-generation structure <NUM> is a piezoelectric power generation structure, an alternating load is exerted on the piezoelectric patch through vibration, and the electrical energy is generated accordingly. From the waveform of the electrical energy output from the self-generation structure <NUM> after bridge rectification shown in <FIG>, it can be seen that the electrical energy generated by the self-generation structure <NUM> in the suspended state is greater and more steadily than the electrical energy generated by the self-generation structure <NUM> in the non-suspended state (unrestricted state).

According to the self-powered device <NUM> provided in the present application, the first lever structure is used to trigger the self-generation structure <NUM>, the first power part <NUM> receives the external force and drives the self-generation structure <NUM> arranged on the first resistance part <NUM> to be suspended, so that the self-generation structure <NUM> can generate electrical energy in the suspended state, the restriction of the self-generation structure <NUM> caused due to the bottom shell or the top shell is avoided, a problem that a vibration structure of the existing self-generation device is restricted by the bottom shell or the top shell is solved, and the efficiency and the stability of self-generation of the self-powered device <NUM> are effectively improved.

Furthermore, referring to <FIG>, in this embodiment, the self-powered device <NUM> further comprises a bottom shell <NUM> and a top cover <NUM>. The first support part <NUM> is arranged on an inner wall of the bottom shell <NUM>, the top cover <NUM> is enclosed with the bottom shell <NUM> to form a mounting cavity <NUM>, and the first triggering member <NUM> and the self-generation structure <NUM> are accommodated in the mounting cavity <NUM>. In particular, the first support part <NUM> and the bottom shell <NUM> are integrally formed, so that the production and the processing of the first support part <NUM> are facilitated. The top cover <NUM> and the bottom shell <NUM> are cooperated to enclose the first triggering member <NUM> and the self-generation structure <NUM> in the mounting cavity <NUM>, so that the self-generation structure <NUM> can be better protected from being affected by external environment.

Furthermore, referring to <FIG> and <FIG>, in this embodiment, the self-powered device <NUM> further includes a circuit board <NUM> and a first group of buttons. The circuit board <NUM> is arranged on one surface of the first power part <NUM> facing the top cover <NUM>. The first group of buttons includes a plurality of first buttons <NUM>, the plurality of first buttons <NUM> are arranged on the top cover <NUM> at intervals, and bottom ends of the plurality of first buttons <NUM> are abutted against the circuit board <NUM> and are equally spaced from the first connection part <NUM>. In particular, the self-powered device <NUM> can be a switch, and the circuit board <NUM> is fixed on the surface of the first power part <NUM> facing the top cover <NUM>, and the bottom ends of the first buttons <NUM> are always abutted against the circuit board <NUM>. The circuit board <NUM> is driven by each first button <NUM> to swing with the first power part <NUM> and does not obstruct the travel of the first buttons <NUM>. In this way, the first button <NUM> can achieve turning on and turning off of the circuit board <NUM> at a stroke of <NUM> millimeter (mm) instead of using a high stroke switch with a stroke of <NUM>, so that a production cost of the self-powered device <NUM> is greatly reduced. Since the plurality of first buttons <NUM> are arranged at an equal distance from the first connection <NUM>, such that the stroke of any one of the first buttons <NUM> can drive the self-powered structure <NUM> to rotate at the same distance, and the same self-generation effect can be achieved.

Furthermore, referring to <FIG>, <FIG>, in this embodiment, the self-generation structure <NUM> includes a piezoelectric patch <NUM>, a metal dome <NUM>, a mass block <NUM> and a spring <NUM>. The specific structures of the piezoelectric patch <NUM>, the metal dome <NUM>, the mass block <NUM> and the spring <NUM> are as same as the structures disclosed in the published CN patent application (Publication No. <CIT>). Moreover, the piezoelectric patch <NUM>, the piezoelectric patch <NUM>, the metal dome <NUM>, the mass block <NUM> and the spring <NUM> are arranged coaxially and are laminated sequentially in an axial direction. The piezoelectric patch <NUM> is arranged on the surface of the first resistance part <NUM> facing the top cover <NUM>, one end of the spring <NUM> is abutted against the mass block <NUM>, and the other end of the spring <NUM> can be connected to an inner wall of the top cover <NUM> or a fixing member <NUM>. When the self-powered device <NUM> includes the fixing member <NUM>, the fixing member <NUM> is fixed to a bottom wall of the bottom shell <NUM>, and a space for allowing the first resistance part <NUM> to swing around the first support part <NUM> in a reciprocating manner are formed between the fixing member <NUM> and the bottom shell <NUM>. When the first power part <NUM> is forced to drive the first resistance part <NUM> to drive the self-power mechanism <NUM> to be lifted, the piezoelectric patch <NUM> is pressed against the metal dome metal dome <NUM> upwards, while the mass block <NUM> presses against the metal dome <NUM> downwards under an elastic force of the spring <NUM>, and when the piezoelectric patch <NUM> and the mass block <NUM> are pressed against the metal dome metal dome <NUM>, the piezoelectric patch <NUM> and the mass block <NUM> are pressed against the metal dome metal dome <NUM>. When a clamping force of the piezoelectric patch <NUM> and the mass block <NUM> is greater than a triggering threshold, the metal dome <NUM> is deformed and is rebounded back to its original state when the first resistance part <NUM> is kept in the suspended state, thereby driving the mass block <NUM> to generate vibration and transferring the vibration to the piezoelectric patch <NUM>, such that the piezoelectric patch <NUM> receives the alternating load and is deformed, and the mechanical energy generated due to the vibration can be converted into electrical energy. Since the whole vibration and power generation process occurs in the suspended state, so that the vibration can be avoided from being restricted by the bottom shell <NUM>, the top cover <NUM> or the fixing member <NUM>, and it is ensured that the vibration can maximize the electrical energy conversion efficiency of the piezoelectric patch <NUM>, which facilitates enhancing the efficiency and the stability of the self-power generation of the self-power device <NUM>.

In order to ensure the effective conversion of the vibration, the self-generation structure <NUM> may also include a clamping member <NUM>, and an avoidance hole <NUM> for avoiding the mass block <NUM> is recessed on the middle part of the clamping member <NUM>, and a plurality of positioning protrusions <NUM> are arranged at edges of the clamping member <NUM>. The plurality of positioning protrusions <NUM> are arranged to be spaced apart around a peripheral wall of the clamping member <NUM>. Moreover, a plurality of lug bosses <NUM> are arranged on a surface of the first resistance part <NUM> facing the top cover <NUM>, and the plurality of lug bosses <NUM> are arranged to be spaced around the circumference of the piezoelectric patch <NUM>. A step <NUM> and a slot <NUM> are arranged on each of the plurality of lug bosses <NUM>. When the self-generation structure <NUM> is assembled, the positioning protrusions <NUM> of the clamping member <NUM> are snap-fitted with the slots <NUM> in a one-to-one correspondence manner, so that the clamping member <NUM> presses the edge of the piezoelectric patch <NUM> against the steps <NUM>, and the steps <NUM> supports the piezoelectric patch <NUM> at a certain height, so that a space for allowing the deformation of the piezoelectric patch <NUM> due to the vibration is formed between the piezoelectric patch <NUM> and the surface of the first resistance part <NUM>. Certainly, according to the specific situation and the requirement, in other embodiments of the present application, the self-generation structure <NUM> may also be a piezoelectric power generation structure having other structure.

The second embodiment is not covered by the subject matter defined by the claims.

Referring to <FIG>, <FIG>, and <FIG> together, the self-powered device <NUM> provided in this embodiment is basically the same as the self-powered device <NUM> provided in the first embodiment, the difference between the self-powered device provided in this embodiment and the self-powered device <NUM> provided in the first embodiment is that, a first force-bearing part <NUM> is arranged on the first power part <NUM>, and the triggering structure further includes a second lever structure. The second lever structure includes a second support part <NUM> and a second triggering member <NUM>. The second support part <NUM> is arranged on the first power part <NUM> and is located at a one-half of a power arm of the first force-bearing part <NUM>, the second triggering member <NUM> is accommodated in the mounting cavity <NUM>. Moreover, the second triggering member <NUM> includes a second power part <NUM>, a second resistance part <NUM> and a second connection part <NUM>, the second power part <NUM> and the second resistance part <NUM> are located at opposite sides of the second connection part <NUM>, respectively, and a second force-bearing part <NUM> is arranged on the second power part <NUM>. The second resistance part <NUM> is connected to the top cover <NUM> to form a pivot point O, the second connection part <NUM> is rotatably connected to the second support part <NUM> to form the second revolute <NUM>, and a power arm of the second force-bearing part <NUM> is twice of a resistance arm of the second revolute <NUM> in length. That is, the first lever structure and the second lever structure are rotatably connected to form a cross lever structure. In particular, referring to <FIG>, assuming that the self-generation structure <NUM> is triggered to exert a pressure force having a value F on the first force-bearing part <NUM>, however, since the power arm L1 of the first force-bearing part <NUM> is twice of a resistance arm <NUM>/2L1 of the second revolute <NUM> in length in the first lever structure, thus, it needs to exert a pressure force having a value 2F on the second force-bearing part <NUM> to reach the trigger condition of the self-generation structure <NUM>. However, in the second lever structure, the pivot point of the second trigger element <NUM> is the pivot point O, a resistance arm <NUM>/2L2 of the second revolute <NUM> which receives a reactive force is one half of the power arm L2 of the second force-bearing part <NUM> in length. Thus, it only needs to exert a pressure force with the value F on the second force-bearing part <NUM> to generate a pressure force with the value 2F at the second revolute <NUM> according to lever principle. That is, no matter the pressure force with the value F is exerted on the first force-bearing part <NUM> or exerted on the second force-bearing part <NUM>, the self-generation structure <NUM> can be triggered to generate electrical energy.

Furthermore, in this embodiment, an avoidance groove <NUM> is arranged on the first power part <NUM>, the avoidance groove <NUM> penetrates through the first power part <NUM> and is located between the first connection part <NUM> and the first force-bearing part <NUM>, and the second support part <NUM> is formed on the groove wall of the avoidance groove <NUM> adjacent to the first force-bearing part <NUM>, the second power part <NUM> is positioned to correspond to the avoidance groove <NUM>. When the second force-bearing part <NUM> is driven by an external force to approach towards the bottom wall of the bottom shell <NUM> around the pivot point O, as shown in <FIG>, the second revolute <NUM> drives the first power part <NUM> to rotate around the axis of the first revolute <NUM> towards the bottom wall of the bottom shell <NUM>, thereby driving the first resistance part <NUM> to approach towards the top cover <NUM> around the axis of the first revolute <NUM> and is in a suspended state. Under the same magnitude of external force, the distance of rotation of the first power part driven by the second force-bearing part <NUM> is equal to the distance of rotation of the first power part <NUM> driven by the first force-bearing part <NUM>. In particular, the axis of the second revolute <NUM> is parallel to the axis of the first revolute <NUM>. The second resistance part <NUM> is located on a top side of the first power part <NUM> and is arranged to be inserted in an interval between two adjacent first buttons <NUM>. The second resistance part <NUM> can be swung in the interval in a reciprocating manner, and one end of the second resistance part <NUM> away from the second connecting section <NUM> is abutted against the top cover <NUM>. The second power part <NUM> has an outer contour being adapted to an inner contour of the avoidance groove <NUM>, such that the second power part <NUM> can penetrate through the avoidance groove <NUM> and is swung in a reciprocating manner. The second support part <NUM> may be a convex rib having a rounded top or be one or more protrusion(s) arranged at intervals and having spherical-crown shaped top(s). The second connection part <NUM> is an arc-shaped groove adapted to the top of the second support part <NUM>, and is lapped with or snapped on the top of the second support part <NUM>. The second connection <NUM> may also be an arc-shaped groove, and the second connection part <NUM> may be a convex rib having a rounded top or be one or more projection(s) arranged at intervals and having spherical-crown shaped top(s), and the second support part <NUM> is lapped with or snapped on the top of the second connection part <NUM>, such that the second connection part <NUM> is rotatably connected to the second support part <NUM> to form the second revolute <NUM>. As shown in <FIG>, the bottom ends of the plurality of first buttons <NUM> are pierced on the first force-bearing part <NUM>, and end surfaces of the bottom ends of the plurality of first buttons <NUM> are exposed on the bottom side of the first power part <NUM>. When a first external force is applied to one first button <NUM> to drive the first power part <NUM> to rotate downwards at a first distance, the end surface of the bottom end of the first button <NUM> abuts against the circuit board <NUM>. The bottom ends of the plurality of second buttons <NUM> are pierced on the second force-bearing part <NUM>, and end surfaces of the bottom ends of the plurality of second buttons <NUM> are exposed on a bottom side of the second power part <NUM>. When a second external force is applied to one second button <NUM> to drive the second power part <NUM> to rotate downwards at a second distance, the bottom end of the second button <NUM> abuts against the circuit board <NUM>. If the magnitude of the second external force is the same as the magnitude of the first external force, the second distance is the same as the first distance. That is, in practical application, the first buttons <NUM> and the second buttons <NUM> can trigger the self-generation structure <NUM> with the same magnitude of pressing force and the same stroke. No matter the user triggers the self-generation structure <NUM> by pressing the first buttons <NUM> or the second buttons <NUM>, a result of different strokes and different power generations of the self-generation structure <NUM> would not occur, although the distance between the first buttons <NUM> and the first support part <NUM> and the distance between the second buttons <NUM> and the first support part <NUM> are different. The self-powered device is in better conformity with user's usage habits and facilitates improving the user's experience.

Referring to <FIG>, <FIG> and <FIG> together, the self-powered device <NUM> provided in this embodiment is basically the same as the self-powered device <NUM> provided in the first embodiment, the difference between the self-powered device <NUM> provided in this embodiment and the self-powered device <NUM> provided in the first embodiment is that, a first force-bearing part <NUM> is arranged on the first power part <NUM>, and the triggering structure further includes a second lever structure, and the second lever structure includes a second support part <NUM> and a second triggering member <NUM>. The second support part <NUM> is arranged on the first power part <NUM> and is located at a one-half of a power arm of the first force-bearing part <NUM>. The second triggering member <NUM> is accommodated in the mounting cavity <NUM>, and the second triggering member <NUM> includes a second power part <NUM>, a second resistance part <NUM> and a second connection part <NUM>. The second power part <NUM> and the second resistance part <NUM> are located on opposite sides of the second connection part <NUM>, respectively. Moreover, a second force-bearing part <NUM> is arranged on the second power part <NUM>, and the second resistance part <NUM> is abutted against the top cover <NUM> to form a pivot point O. The second connection part <NUM> is rotatably connected to the second support part <NUM> to form a second revolute <NUM>. The power arm of the second force-bearing part <NUM> is twice of a resistance arm of the second revolute <NUM> in length. That is, the first lever structure and the second lever structure are rotatably connected to form a cross lever structure. Referring to <FIG>, assuming that the self-generation structure <NUM> is triggered to exert a pressure force having a value F on the first force-bearing part <NUM>, however, since the power arm L1 of the first force-bearing part <NUM> is twice of a resistance arm <NUM>/2L1 of the second revolute <NUM> in length in the first lever structure, thus, it needs to exert a pressure force having a value 2F on the second force-bearing part <NUM> to reach the trigger condition of the self-generation structure <NUM>. However, in the second lever structure, the pivot point of the second trigger element <NUM> is the pivot point O, a resistance arm <NUM>/2L2 of the second revolute <NUM> which receives a reactive force is one half of the power arm L2 of the second force-bearing part <NUM> in length. Thus, it only needs to exert a pressure force with the value F on the second force-bearing part <NUM> to generate a pressure force with the value 2F at the second revolute <NUM> according to lever principle. That is, no matter the pressure force with the value F is exerted on the first force-bearing part <NUM> or exerted on the second force-bearing part <NUM>, the self-generation structure <NUM> can be triggered to generate electrical energy.

Furthermore, in this embodiment, in addition to the circuit board <NUM> and the first group of buttons, the self-powered device <NUM> further includes a second group of buttons. The circuit board <NUM> is arranged on the surface of the second triggering member <NUM> facing the top cover <NUM>, the second group of buttons is spaced apart from the first group of buttons, and the second group of buttons is located on one side of the first group of buttons adjacent to the first support part <NUM>. The second group of buttons includes a plurality of second buttons arranged to be spaced apart on the top cover <NUM>, the bottom ends of the first buttons <NUM> and the bottom ends of the second button <NUM> are respectively abutted against the circuit board <NUM>. Thus, more control functions can be achieved by the self-powered device <NUM> through the matching of the circuit board <NUM>, the first group of buttons and the second group of buttons. The self-powered device <NUM> may be a remote control.

Furthermore, in this embodiment, an avoidance groove <NUM> is further arranged on the first power part <NUM>, the avoidance groove <NUM> penetrates through the first power part <NUM> and is located between the first connection part <NUM> and the first force-bearing part <NUM>, and a second support part <NUM> is arranged on one side of the avoidance groove <NUM> adjacent to the first force-bearing part <NUM>. The second resistance part <NUM> is respectively abutted against the first power part <NUM> and the top cover <NUM>. The position of the second power part <NUM> corresponds to the position of the avoidance groove <NUM>, and a third force-bearing part <NUM> is arranged on the second resistance part <NUM>. When the third force-bearing part <NUM> is driven towards the bottom wall of the bottom shell <NUM> by an external force, as shown in <FIG>, the second resistance part <NUM> will be pressed against the first power part <NUM> to enable the first power part <NUM> to rotate around the axis of the first revolute <NUM> towards the bottom wall of the bottom shell <NUM>. When the second force-bearing part <NUM> is driven to approach the bottom wall of the bottom shell <NUM> around the pivot point O, as shown in <FIG>, the second revolute <NUM> will drive the first power part <NUM> to rotate around the axis of the first revolute <NUM> and towards the bottom wall of the bottom shell <NUM>. It can be understood that one end of the second resistance part <NUM> away from the second connection part <NUM> is abutted against the top cover <NUM> and forms the pivot point O. Under the same magnitude of external force, the distance of rotation of the first power part <NUM> driven by the third force-bearing part <NUM> is equal to the distance of rotation of the first power part <NUM> driven by the second force-bearing part <NUM>. In particular, the second triggering member <NUM> is located on a top side of the first triggering member <NUM>, and the position of the third force-bearing part <NUM> corresponds to the position of the first force-bearing part <NUM>. The second power part <NUM> has an outer contour being adapted to an inner contour of the avoidance groove <NUM>, such that the second power part <NUM> can penetrate through the avoidance groove <NUM> and swing in a reciprocating manner. The second support part <NUM> may be a convex rib having a rounded top or be one or more protrusion(s) arranged at intervals and having spherical-crown shaped top(s). The second connection part <NUM> is an arc-shaped groove adapted to the top of the second support part <NUM>, and is lapped with or snapped on the top of the second support part <NUM>. The second connection <NUM> may also be an arc-shaped groove, and the second connection part <NUM> may be a convex rib having a rounded top, or be one or more projection(s) arranged at intervals and having spherical-crown shaped top(s), and the second support part <NUM> is lapped with or snapped on the top of the second connection part <NUM>, such that the second connection part <NUM> is rotatably connected to the second support part <NUM> to form the second revolute <NUM>. One end of the circuit board <NUM> away from the first support part <NUM> is the first end, the other end of the circuit board <NUM> adjacent to the first support part <NUM> is the second end, the first end and the second end of the circuit board <NUM> are abutted against the third force-bearing part <NUM> and the second force-bearing part <NUM>, respectively. The spacing between a bottom end of each first button <NUM> and an edge of the first end of the circuit board <NUM> is equal to a spacing between a bottom end of each second button <NUM> and an edge of the second end of the circuit board <NUM>. When either of the first buttons <NUM> or either of the second buttons <NUM> is pressed by the pressures with the same magnitude, the distances of downward rotations of the first power part <NUM> are equal. That is, in practical application, the first buttons <NUM> and the second buttons <NUM> can trigger the self-generation structure <NUM> with the same magnitude of pressing force and the same stroke. No matter the user triggers the self-generation structure <NUM> by pressing the first buttons <NUM> or the second buttons <NUM>, a result of different strokes and different power generations of the self-generation structure <NUM> would not occur, although the distance between the first buttons <NUM> and the first support part <NUM> and the distance between the second buttons <NUM> and the first support part <NUM> are different. The self-powered device <NUM> is in better conformity with user's usage habits and facilitates improving the user's experience.

Furthermore, in this embodiment, a first flange <NUM> is formed on an edge of the second resistance part <NUM> away from the second connection part <NUM>, while a second flange <NUM> is formed on an edge of the second power part <NUM> away from the second connection part <NUM>, the first flange <NUM> and the second flange <NUM> are respectively abutted against the top cover <NUM>, an accommodation space is formed between the first flange <NUM> and the second flange <NUM>, and the circuit board <NUM> is accommodated in the accommodation space. In particular, the first flange <NUM> is perpendicular to a surface of the third force-bearing part <NUM> facing the top cover <NUM>, the second flange <NUM> is perpendicular to a surface of the second force-bearing part <NUM> facing the top cover <NUM>, and the first flange <NUM> and the second flange <NUM> are arranged to face the same side and are parallel to each other. A height of projection of the first flange <NUM> is equal to a height of projection of the second flange <NUM>, and is greater than or equal to a thickness of the circuit board <NUM>, so that the circuit board <NUM> can be avoided from being directly contacted with an inner wall of the top cover <NUM>, and the circuit board <NUM> is effectively protected.

Referring to <FIG>, <FIG> and <FIG> together, a first force-bearing part <NUM> is arranged on the first power part <NUM>, and the triggering structure further includes a second lever structure, and the second lever structure includes a second support part <NUM> and a second triggering member <NUM>. The second support part <NUM> is arranged on the first power part <NUM> and is located at a one-half of a power arm of the first force-bearing part <NUM>. The second triggering member <NUM> is accommodated in the mounting cavity <NUM>, and the second triggering member <NUM> includes a second power part <NUM>, a second resistance part <NUM> and a second connection part <NUM>. The second power part <NUM> and the second resistance part <NUM> are located on opposite sides of the second connection part <NUM>, respectively. Moreover, a second force-bearing part <NUM> is arranged on the second power part <NUM>, and the second resistance part <NUM> is abutted against the top cover <NUM> to form a pivot point O. The second connection part <NUM> is rotatably connected to the second support part <NUM> to form a second revolute <NUM>. The power arm of the second force-bearing part <NUM> is twice of a resistance arm of the second revolute <NUM> in length. That is, the first lever structure and the second lever structure are rotatably connected to form a cross lever structure. Referring to <FIG>, assuming that the self-generation structure <NUM> is triggered to exert a pressure force having a value F on the first force-bearing part <NUM>, however, since the power arm L1 of the first force-bearing part <NUM> is twice of a resistance arm <NUM>/2L1 of the second revolute <NUM> in length in the first lever structure, thus, it needs to exert a pressure force having a value 2F on the second force-bearing part <NUM> to reach the trigger condition of the self-generation structure <NUM>. However, in the second lever structure, the pivot point of the second trigger element <NUM> is the pivot point O, a resistance arm <NUM>/2L2 of the second revolute <NUM> which receives a reactive force is one half of the power arm L2 of the second force-bearing part <NUM> in length. Thus, it only needs to exert a pressure force with the value F on the second force-bearing part <NUM> to generate a pressure force with the value 2F at the second revolute <NUM> according to lever principle. That is, no matter the pressure force with the value F is exerted on the first force-bearing part <NUM> or exerted on the second force-bearing part <NUM>, the self-generation structure <NUM> can be triggered to generate electrical energy.

Furthermore, in this embodiment, in addition to the circuit board <NUM> and the first group of buttons, the self-powered device <NUM> further includes a second group of buttons, the circuit board <NUM> is arranged on a surface of the second triggering member <NUM> facing the top cover <NUM>, the second group of buttons is spaced apart from the first group of buttons, and the second group of buttons is located on one side of the first group of buttons adjacent to the first support part <NUM>. The second group of buttons includes a plurality of second buttons, and a plurality of second buttons <NUM> are arranged to be spaced on the top cover <NUM>, and the bottom ends of the first buttons61 and the bottom ends of the second buttons <NUM> are respectively abutted against the circuit board <NUM>. Thus, more control functions can be achieved by the self-powered device <NUM> through the matching of the board <NUM>, the first group of buttons and the second group of buttons. The self-powered device <NUM> may be a remote control.

Furthermore, in this embodiment, an avoidance groove <NUM> is further arranged on the first power part <NUM>, the avoidance groove <NUM> penetrates through the first power part <NUM> and is located between the first connection part <NUM> and the first force-bearing part <NUM>, and the second support part <NUM> is formed on the groove wall of the avoidance groove <NUM> adjacent to the first force-bearing part <NUM>, the second power part <NUM> is positioned to correspond to the avoidance groove <NUM>, the second resistance part <NUM> penetrates through the avoidance groove <NUM> and is abutted against the bottom shell <NUM> to form a pivot point O. When the second force-bearing part <NUM> is driven by an external force to approach towards the bottom wall of the bottom shell <NUM> around the pivot point O, as shown in <FIG>, the second revolute <NUM> drives the first power part <NUM> to rotate around the axis of the first revolute <NUM> and towards the bottom wall of the bottom shell <NUM>, thereby driving the first resistance part <NUM> to approach towards the top cover <NUM> around the axis of the first revolute <NUM>, and is in a suspended state. Under the same magnitude of external force, the distance of rotation of the first power part driven by the second force-bearing part <NUM> is equal to the distance of rotation of the first power part <NUM> driven by the first force-bearing part <NUM>. In particular, the axis of the second revolute <NUM> is parallel to the axis of the first revolute <NUM>. The second resistance part <NUM> is located on a top side of the first power part <NUM>, a width of the second resistance part <NUM> is adaptive to a width of the avoidance groove <NUM>, the second resistance part <NUM> penetrates through the avoidance groove <NUM> and is exposed at the bottom side of the first power part <NUM>. Furthermore, one end of the second resistance part <NUM> away from the second connection part <NUM> is provided with a limiting protrusion <NUM>, an inner surface of a side wall of the bottom shell <NUM> is provided with a hook <NUM>, the limiting protrusion <NUM> is abutted against the hook <NUM> to form a hinge, the pivot point O is formed on the hook <NUM>. The second connection <NUM> may be an arc-shaped groove, and the second connection part <NUM> may be a convex rib having a rounded top or be one or more projection(s) arranged at intervals and having spherical-crown shaped top(s), and the second support part <NUM> is lapped with or snapped on the top of the second connection part <NUM>. The second support part <NUM> may also be a convex rib having a rounded top or be one or more protrusion(s) arranged at intervals and having spherical-crown shaped top(s), the second connection part <NUM> is an arc-shaped groove adapted to the top of the second support part <NUM>, and the second connection part <NUM> is lapped with or snapped on the top of the second support part <NUM>, such that the second connection part <NUM> is rotatably connected to the second support part <NUM> to form the second revolute <NUM>. One end of the circuit board <NUM> away from the first support part <NUM> is the first end, the other end of the circuit board <NUM> adjacent to the first support part <NUM> is the second end, the first end and the second end of the circuit board <NUM> are abutted against the first force-bearing part <NUM> and the second force-bearing part <NUM>, respectively. The spacing between a bottom end of each first button <NUM> and an edge of the first end of the circuit board <NUM> is equal to a spacing between a bottom end of each second button <NUM> and an edge of the second end of the circuit board <NUM>. When either of the first buttons <NUM> or either of the second buttons <NUM> is pressed by the pressures with the same magnitude, the distances of downward rotations of the first power part <NUM> are equal. That is, in practical application, the first buttons <NUM> and the second buttons <NUM> can trigger the self-generation structure <NUM> with the same magnitude of pressing force and the same stroke. No matter the user triggers the self-generation structure <NUM> by pressing the first buttons <NUM> or the second buttons <NUM>, a result of different strokes and different power generations of the self-generation structure <NUM> would not occur, although the distance between the first buttons <NUM> and the first support part <NUM> and the distance between the second buttons <NUM> and the first support part <NUM> are different. The self-powered device <NUM> is in better conformity with user's usage habits and facilitates improving the user's experience.

Furthermore, in this embodiment, a second flange <NUM> is formed on an edge of the second power part <NUM> away from the second connection part <NUM>, while a third flange <NUM> is formed on an edge of the first power part <NUM> away from the first connection part <NUM>, the second flange <NUM> and the third flange <NUM> are respectively abutted against the top cover <NUM>, an accommodation space is formed between the second flange <NUM> and the third flange <NUM>, and the circuit board <NUM> is accommodated in the accommodation space. In particular, the second flange <NUM> is perpendicular to a surface of the second force-bearing part <NUM> facing the top cover <NUM>, the third flange <NUM> is perpendicular to a surface of the first force-bearing part <NUM> facing the top cover <NUM>, and the second flange <NUM> and the third flange <NUM> are arranged to face the same side and are parallel to each other. A height of projection of the second flange <NUM> is equal to a height of projection of the third flange <NUM>, and is greater than or equal to a thickness of the circuit board <NUM>, so that the circuit board <NUM> can be avoided from being directly contacted with an inner wall of the top cover <NUM>, and the circuit board <NUM> is effectively protected.

Claim 1:
A self-powered device (<NUM>), comprising:
a triggering structure, wherein the triggering structure comprises a first lever structure, the first lever structure comprises a first support part (<NUM>) and a first triggering member (<NUM>), the first triggering member (<NUM>) comprises a first power part (<NUM>), a first resistance part (<NUM>) and a first connection part (<NUM>), the first power part (<NUM>) and the first resistance part (<NUM>) are arranged on opposite sides of the first connection part (<NUM>) respectively, the first connection part (<NUM>) is rotatably connected to the first support part (<NUM>) to form a first revolute (<NUM>);
a self-generation structure (<NUM>) arranged on the first resistance part (<NUM>),
wherein when the first power part (<NUM>) is driven by an external force to rotate around an axis of the first revolute (<NUM>) and towards a side of the first support part (<NUM>), the first resistance part (<NUM>) is rotated around the axis of the first revolute (<NUM>) in a direction opposite to a rotation direction of the first power part (<NUM>), in order that the self-generation structure (<NUM>) is triggered in a suspended state and generates electrical energy;
a bottom shell (<NUM>), wherein the first support part (<NUM>) is arranged on an inner wall of the bottom shell (<NUM>); and
a top cover (<NUM>), wherein the top cover (<NUM>) and the bottom shell (<NUM>) are enclosed to form a mounting cavity (<NUM>), wherein the first triggering member (<NUM>) and the self-generation structure (<NUM>) are accommodated in the mounting cavity (<NUM>),
characterized in that the self-powered device (<NUM>) further comprises:
a circuit board (<NUM>) arranged on a surface of the first power part (<NUM>) facing the top cover (<NUM>); and
a first group of buttons, wherein the first group of buttons comprises a plurality of first buttons (<NUM>), the plurality of first buttons (<NUM>) are arranged to be spaced apart on the top cover (<NUM>), and bottom ends of the plurality of first buttons (<NUM>) are abutted against the circuit board (<NUM>) and are spaced at an equal distance from the first connection part (<NUM>).