Self-generating electronic scale

Abstract

The utility model discloses a self-generating electronic scale. The electronic scale includes a shell and a power generation component. The shell is provided with a button component, and the button component includes a button and a rack. The power generation component includes a transmission gear component, an inertia wheel component and a power generation coil group. The inertia wheel component includes an inertia wheel and a driven gear. The inertia wheel is provided with a plurality of magnets. The inertia wheel and the power generation coil group are arranged opposite to each other, and the rack is meshed with the input end of the transmission gear component. The rack can drive the transmission gear component to rotate, and drive the output end of the transmission gear component to move from a first position to a second position, so that the output end of the transmission gear component meshes with the driven gear for transmission, so as to drive the inertia wheel to rotate, and when the button is released, it can return from the second position to the first position. When the output end of the transmission gear component is separated from the driven gear, the inertia wheel can continue to rotate by relying on its own inertia. The inertia wheel of the present application can continue to rotate, so that the power generation component can continue to generate electricity.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic scales, in particular to an electronic scale which utilizes a power generation mechanism to supply power autonomously. Background Art

[0002] In the related art, the power supply method of the self-generating electronic scale is to drive the power generation component to generate electricity by pressing a button or a knob, and the generated electric energy is stored in an energy storage element such as a capacitor, and then the electric energy stored in the energy storage element is used for the electronic scale. The disadvantage of this power supply method is that the power supply current is small and large current cannot be supplied. In addition, due to the capacity of the energy storage element, the electric energy stored in the energy storage element is limited, and the power supply time for the electronic scale is short, which affects the normal use of the electronic scale. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a self-generating electronic scale, which achieves the effect of continuous power generation to supply large current to the electronic scale and can achieve power supply for a long time.

[0004] The self-generating electronic scale according to the embodiment of the utility model comprises a shell and a power generation assembly, wherein the shell is provided with a button assembly, wherein the button assembly comprises a button and a rack, wherein the rack is provided on the button; the power generation assembly is provided in the shell, wherein the power generation assembly comprises a transmission gear assembly, an inertia wheel assembly and a power generation coil group, wherein the inertia wheel assembly comprises an inertia wheel and a driven gear coaxially arranged with the inertia wheel, wherein the inertia wheel is provided with a plurality of magnets, wherein the plurality of magnets are arranged along the circumference of the inertia wheel, wherein the inertia wheel is arranged opposite to the power generation coil group, wherein the rack is meshed with an input end of the transmission gear assembly, and wherein an output end of the transmission gear assembly has a first position and a second position. The transmission gear assembly is configured as follows: when the button is pressed to move downward, the rack can drive the transmission gear assembly to rotate, and drive the output end of the transmission gear assembly to move from the first position to the second position, so that the output end of the transmission gear assembly is meshed with the driven gear for transmission, so as to drive the inertia wheel to rotate; when the button is released to reset the button upward, the rack can drive the output end of the transmission gear assembly to move from the second position to the first position, and the output end of the transmission gear assembly is separated from the driven gear, so that the inertia wheel can continue to rotate relying on its own inertia.

[0005] The self-generating electronic scale according to the embodiment of the utility model has at least the following beneficial effects: the self-generating electronic scale of the present application adopts a power generation component that combines a transmission gear assembly and an inertia wheel assembly, and the mechanical energy generated by the transmission gear assembly is transmitted to the inertia energy component through the meshing transmission of the transmission gear assembly and the inertia wheel assembly, and the inertia wheel continues to rotate by separating the transmission gear assembly from the inertia wheel assembly, so that the power generation component continues to generate electricity, thereby adapting to the use occasions with large working currents and being able to achieve longer power supply time in related occasions.

[0006] According to some embodiments of the utility model, the transmission gear assembly includes a first gear and a second gear, the rack meshes with the first gear, and the second gear meshes with the first gear; the second gear is configured as follows: when the button is pressed to move the button downward, the first gear can drive the second gear to move so that the second gear meshes with the driven gear; when the button is released to reset the button upward, the first gear can drive the second gear to separate from the driven gear.

[0007] According to some embodiments of the utility model, the transmission gear assembly includes a driving gear, a vortex gear, a linkage gear, a first gear and a second gear, the linkage gear is coaxially arranged with the vortex gear, the driving gear is meshed with the rack, the vortex gear is meshed with the driving gear, and the linkage gear is meshed with the first gear; the second gear is configured as follows: when the button is pressed to move the button downward, the first gear can drive the second gear to move so that the second gear is meshed with the driven gear, and when the button is released to reset the button upward, the first gear can drive the second gear to separate from the driven gear.

[0008] According to some embodiments of the utility model, the power generation component includes a shell, the inner wall of the shell is provided with a guide groove, the guide groove is extended along the rotation direction of the first gear, the rotating shaft of the second gear extends into the guide groove, and the rotating shaft of the second gear can move along the guide groove.

[0009] According to some embodiments of the utility model, along the circumference of the inertia wheel, a plurality of installation positions are provided on a side of the inertia wheel away from the driven gear, and a plurality of the magnets are provided at corresponding installation positions.

[0010] According to some embodiments of the present invention, the transmission gear assembly is an acceleration gear assembly.

[0011] According to some embodiments of the present utility model, the generating coil group includes a plurality of coils and a mounting frame, the coils are mounted on the mounting frame, and the coils are used to be electrically connected to a main control board of the electronic scale.

[0012] According to some embodiments of the present utility model, a return spring is provided in the shell, one end of the return spring abuts against the button, and the other end of the return spring abuts against the bottom wall of the shell.

[0013] According to some embodiments of the utility model, the shell includes a bottom shell and a surface shell assembled on the bottom shell, the bottom shell and the surface shell form a accommodating cavity, and the power generation component is arranged in the accommodating cavity.

[0014] According to some embodiments of the present utility model, the electronic scale further includes a weighing sensor assembly, and the weighing sensor assembly is disposed on the shell.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 A three-dimensional schematic diagram of a self-generating electronic scale according to an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional exploded schematic diagram of a self-generating electronic scale according to an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional exploded schematic diagram of a power generation component of a self-generating electronic scale according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the assembly of the power generation component and the housing of a self-generating electronic scale according to an embodiment of the utility model;

[0021] Figure 5 This is a front view of the assembly of a power generation component and a housing of a self-generating electronic scale according to an embodiment of the utility model;

[0022] Figure 6 A cross-sectional structural diagram of the output end of a transmission gear assembly of a self-generating electronic scale in accordance with an embodiment of the utility model meshing with a driven gear;

[0023] Figure 7 This is a cross-sectional structural diagram of the output end of the transmission gear assembly of a self-generating electronic scale according to an embodiment of the utility model being separated from the driven gear;

[0024] Figure 8 This is an assembly structure diagram of a transmission gear assembly and a driven gear of a self-generating electronic scale according to an embodiment of the utility model (in meshing state);

[0025] Fig. 9 This is an assembly structure diagram of a transmission gear assembly and a driven gear of a self-generating electronic scale according to an embodiment of the utility model (separated state);

[0026] Fig.10 A schematic diagram of the shell structure of a power generation component of a self-generating electronic scale according to an embodiment of the utility model;

[0027] Fig.11 It is a three-dimensional exploded schematic diagram of another power generation component of a self-generating electronic scale according to an embodiment of the utility model;

[0028] Fig.12 for Fig.11 A three-dimensional exploded schematic diagram of another power generation component of the self-generating electronic scale of the illustrated embodiment from another viewing direction;

[0029] Fig.13 for Fig.11 A front view of the assembly of the power generation component and the housing of the self-generating electronic scale of the illustrated embodiment;

[0030] Fig.14 for Fig.11 A schematic diagram of the assembly of the power generation assembly of the self-generating electronic scale of the illustrated embodiment (engaged state);

[0031] Fig.15 for Fig.11 A schematic diagram of the assembly of the power generation assembly of the self-generating electronic scale of the illustrated embodiment (separated state);

[0032] Fig.16 for Fig.11 A schematic structural diagram of the housing of a power generation assembly of a self-generating electronic scale according to the illustrated embodiment.

[0033] Figure Number:

[0034] The housing 100, the bottom housing 110, the top housing 120, the weighing panel 130, the accommodating chamber 140, the return spring 150, the button assembly 160, the button 161, the pressing part 1611, the movable part 1612, and the rack 162;

[0035] Power generation assembly 200, housing 210, guide groove 220, power generation coil assembly 230, magnet 231, coil 232, mounting frame 233;

[0036] Transmission gear assembly 300, driving gear 310, vortex gear 320, linkage gear 330, first gear 340, second gear 350;

[0037] Inertia wheel assembly 400, inertia wheel 410, mounting position 411, driven gear 420;

[0038] Weighing sensor assembly 500 and main control board 510 . DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be understood that the descriptions involving orientation, such as left, right, etc., the orientation or positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.

[0041] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] The self-generating electronic scale provided in the embodiment of the utility model comprises a housing 100, a power generation component 200, a weighing sensor component 500 and a control system.

[0044] Specifically, refer to Figures 1 to 10 The housing 100 includes a bottom housing 110 and a front housing 120. The front housing 120 is assembled on the bottom housing 110. The bottom housing 110 and the front housing 120 form a receiving chamber 140. The power generation assembly 200, the weighing sensor assembly 500 and the control system are arranged in the receiving chamber 140. The power generation assembly 200 is electrically connected to the weighing sensor assembly 500 and the control system. The power generation assembly 200 can generate electric energy for use by the weighing sensor assembly 500 and the control system. The housing 100 is provided with a weighing panel 130. The weighing panel 130 is used to place the object to be weighed. The weighing panel 130 is provided with a display screen. The weight of the object to be weighed can be displayed on the display screen.

[0045] The shell 100 is provided with a button assembly 160, which includes a button 161 and a rack 162. The rack 162 is arranged on the button 161. The rack 162 and the button 161 can adopt an integrated structure or a split structure. One end of the button 161 is exposed on the weighing panel 130, and the other end is arranged in the shell 100. The button 161 can move back and forth in the up and down directions of the shell 100.

[0046] Reference Figure 4 , Figure 5 , Figure 6 The power generation component 200 is arranged in the housing 100. The power generation component 200 includes a transmission gear component 300, an inertia wheel component 400 and a power generation coil group 230. The inertia wheel component 400 includes an inertia wheel 410 and a driven gear 420 coaxially arranged with the inertia wheel 410. The inertia wheel 410 is fixedly connected to the driven gear 420. The inertia wheel 410 is provided with a plurality of magnets 231. The plurality of magnets 231 are arranged along the circumference of the inertia wheel 410. The inertia wheel 410 is arranged opposite to the power generation coil group 230. The plurality of magnets 231 are opposite to the power generation coil group 230. When the inertia wheel 410 rotates, the magnets 231 on the inertia wheel 410 and the power generation coil 232 rotate relative to each other, generating a cutting magnetic motion, thereby enabling the power generation coil group 230 to generate electrical energy. The rack 162 is meshed with the input end of the transmission gear assembly 300, and the output end of the transmission gear assembly 300 has a first position and a second position. The output end of the transmission gear assembly 300 can be switched between the first position and the second position through the meshing transmission between the rack 162 of the button assembly 160 and the transmission gear assembly 300. When the output end of the transmission gear assembly 300 is in the first position, the output end of the transmission gear assembly 300 is separated from the driven gear 420 of the inertia wheel assembly 400, and when the output end of the transmission gear assembly 300 is in the second position, the output end of the transmission gear assembly 300 is meshed with the driven gear 420 of the inertia wheel assembly 400.

[0047] Specifically, when the electronic scale is in an idle state, the output end of the transmission gear assembly 300 is located at the first position, and the output end of the transmission gear assembly 300 is separated from the driven gear 420 of the inertia wheel assembly 400. When the electronic scale needs to be used, the button 161 is pressed to move the button 161 downward, and the rack 162 of the button assembly 160 drives the transmission gear assembly 300 to rotate. Moreover, when the transmission gear assembly 300 rotates, under the cooperative transmission between the transmission gear assemblies 300, the output end of the transmission gear assembly 300 first moves from the first position to the second position, so that the output end of the transmission gear assembly 300 is meshed with the driven gear 420 for transmission, and the button 161 continues to move downward, and the transmission gear assembly 300 drives the driven gear 420 to rotate, thereby driving the inertia wheel. 410 rotates, when the inertia wheel 410 rotates, the magnet 231 on the inertia wheel 410 rotates relative to the generating coil 232, generating a cutting magnetic motion, so that the generating coil group 230 generates electrical energy, and when the button 161 is released, the button 161 is reset upward, and the rack 162 can drive the transmission gear assembly 300 to rotate in the opposite direction, driving the output end of the transmission gear to move from the second position to the first position, so that the output end of the transmission gear assembly 300 is separated from the driven gear 420, so that the inertia wheel 410 can continue to rotate by its own inertia. The inertia wheel 410 continues to rotate, and the magnet 231 on the inertia wheel 410 keeps rotating relative to the generating coil 232, so that the cutting magnetic motion is continuously generated, and the generating coil group 230 continues to generate electrical energy, so that the electronic scale can adapt to the use occasions with large working current, and can realize the power supply for a long time in the relevant occasions.

[0048] It can be understood that a smaller transmission ratio can be set between the transmission gear assembly 300 and the driven gear 420 so that the driven gear 420 rotates at a high speed, thereby making the inertia wheel 410 have a larger inertia. After the output end of the transmission gear assembly 300 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a longer time under the action of its own inertia, so that the generating coil group 230 can maintain continuous power generation for a longer time to meet the needs of weighing objects on the electronic scale.

[0049] It can be understood that the transmission gear assembly 300 can be set as an acceleration gear assembly. In other words, the transmission of the transmission gear assembly 300 itself is relatively small. When the rack 162 drives the transmission gear assembly 300 to rotate, it can drive the output gear of the transmission gear assembly 300 to rotate at a high speed, and then drive the driven gear 420 to rotate at a high speed, so that the inertia wheel 410 has a larger inertia. After the output end of the transmission gear assembly 300 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a long time under the action of its own inertia, so that the generating coil group 230 can maintain continuous power generation for a long time to meet the needs of the electronic scale to weigh objects.

[0050] It should be noted that the inertia wheel 410 can be made of a material with a relatively high density, so that the inertia wheel 410 has a certain mass, thereby enabling the inertia wheel 410 to have a relatively large inertia when rotating at a high speed.

[0051] Reference Figure 3 , Figure 4 , Figure 5 In some embodiments, the transmission gear assembly 300 includes a first gear 340 and a second gear 350, the rack 162 is meshed with the first gear 340, and the second gear 350 is meshed with the first gear 340. The first gear tooth is the input end of the transmission gear assembly 300, and the second gear 350 is the output end of the transmission gear assembly 300. Through the meshing transmission of the rack 162 and the first gear 340, the rack 162 converts the linear motion of the button 161 into the rotational motion of the first gear 340 and the second gear 350.

[0052] Reference Figure 7 , Fig. 9 When the electronic scale is in an idle state, the output end of the transmission gear assembly 300 is located at the first position, that is, the second gear 350 of the transmission gear assembly 300 is located at the first position, and the second gear 350 is separated from the driven gear 420 of the inertia wheel assembly 400.

[0053] Reference Figure 6 , Figure 8 When the button 161 is pressed to move the button 161 downward, the rack 162 drives the first gear 340 to rotate, and the first gear 340 drives the second gear 350. While driving the second gear 350 to rotate, the first gear 340 drives the second gear 350 to move along the rotation direction of the first gear 340, so that the second gear 350 moves from the first position to the second position, so that the second gear 350 is meshed with the driven gear 420 for transmission. The rotation of the second gear 350 drives the driven gear 420 to rotate, and then drives the inertia wheel 410 to rotate. Release the button 161 to make the button 161 move upward. When resetting, the rack 162 drives the first gear 340 to rotate in the opposite direction, and the first gear 340 drives the second gear 350 to rotate in the opposite direction. While the first gear 340 drives the second gear 350 to rotate in the opposite direction, it can drive the second gear 350 to move from the second position to the first position, so that the second gear 350 is separated from the driven gear 420. After the second gear 350 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a long time under the action of its own inertia, so that the generating coil group 230 can maintain continuous power generation for a long time to meet the needs of weighing objects on the electronic scale.

[0054] In this embodiment, refer to Figure 5 , Figure 6The rotating shafts of the first gear 340 and the second gear 350 are arranged in a direction perpendicular to the thickness of the shell 100, and the rack 162 is directly meshed with the first gear 340 for transmission. In addition, in this embodiment, the second gear 350 is arranged as a double gear, and the second gear 350 has a large gear and a small gear. The first gear 340 is meshed with the small gear for transmission, and the large gear is used to mesh with the driven gear 420 for transmission, so that the transmission gear assembly 300 has an acceleration function, so that the driven gear 420 can obtain a larger rotation speed.

[0055] Reference Fig.11 , Fig.12 , Fig.13 In some embodiments, the transmission gear assembly 300 includes a driving gear 310, a vortex gear 320, a linkage gear 330, a first gear 340 and a second gear 350. The linkage gear 330 is coaxially arranged with the vortex gear 320. The driving gear 310 is meshed with the rack 162, the vortex gear 320 is meshed with the driving gear 310, and the linkage gear 330 is meshed with the first gear 340.

[0056] In this embodiment, the rotating shafts of the first gear 340 and the second gear 350 are arranged parallel to the thickness direction of the shell 100, the rotating shaft of the driving gear 310 is arranged perpendicular to the thickness direction of the shell 100, the rack 162 is meshed with the driving gear 310 for transmission, the driving gear 310 is meshed with the vortex gear 320 for transmission, the linkage gear 330 is meshed with the first gear 340 for transmission, and the vortex gear 320 converts the linear motion of the rack 162 along the thickness direction of the shell 100 into rotation perpendicular to the plane where the thickness direction of the shell 100 is located.

[0057] Reference Fig.15 When the electronic scale is in an idle state, the output end of the transmission gear assembly 300 is located at the first position, that is, the second gear 350 of the transmission gear assembly 300 is located at the first position, and the second gear 350 is separated from the driven gear 420 of the inertia wheel assembly 400.

[0058] Reference Fig.14When the button 161 is pressed to move the button 161 downward, the rack 162 drives the driving gear 310 to rotate, the driving gear 310 drives the vortex gear 320 to rotate, and then drives the linkage gear 330 to rotate, the linkage gear 330 drives the first gear 340 to rotate, the first gear 340 drives the second gear 350, and the first gear 340 drives the second gear 350 to rotate while driving the second gear 350 to rotate, and drives the second gear 350 to move along the rotation direction of the first gear 340, so that the second gear 350 moves from the first position to the second position, so that the second gear 350 is meshed with the driven gear 420 for transmission, and the rotation of the second gear 350 drives the driven gear 420 to rotate, and then drives the inertia wheel 410 to rotate, and the release When the button 161 is turned on to reset it upward, the rack 162 drives the first gear 340 to rotate in the opposite direction through the driving gear 310, the vortex gear 320 and the linkage gear 330, and the first gear 340 drives the second gear 350 to rotate in the opposite direction. While the first gear 340 drives the second gear 350 to rotate in the opposite direction, it can drive the second gear 350 to move from the second position to the first position, so that the second gear 350 is separated from the driven gear 420. After the second gear 350 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a long time under the action of its own inertia, so that the generating coil group 230 can maintain continuous power generation for a long time to meet the needs of the electronic scale to weigh objects.

[0059] In the above embodiment, the driving gear 310, the first gear 340 and the second gear 350 can be set as double gears, and the driving gear 310, the vortex gear 320, the linkage gear 330, the first gear 340 and the second gear 350 are correspondingly meshed and driven, so that the transmission gear assembly 300 has a smaller transmission ratio, and the output end of the transmission gear (i.e., the second gear 350) has a higher rotation speed, and then the driven gear 420 has a higher rotation speed. After the output end of the transmission gear assembly 300 is separated from the driven gear 420, the inertia wheel 410 has a larger inertia, so that the inertia wheel 410 can continue to rotate for a longer time.

[0060] Reference Figure 3 , Fig.11 In some embodiments, the power generation assembly 200 includes a housing 210, and the transmission gear assembly 300, the inertia wheel assembly 400 and the power generation coil assembly 230 are integrated in the housing 210, so that the structure of the power generation assembly 200 is compact.

[0061] Reference Fig.10 , Fig.16 Guide grooves 220 are provided on opposite sides of the inner wall of the housing 210 . The guide grooves 220 extend along the rotation direction of the first gear 340 . The rotating shaft of the second gear 350 extends into the guide grooves 220 . The rotating shaft of the second gear 350 can move along the guide grooves 220 .

[0062] When the electronic scale is in idle state, the output end of the transmission gear assembly 300 is located at the first position, that is, the second gear 350 of the transmission gear assembly 300 is located at the first position, the rotating shaft of the second gear 350 is located at one end of the guide groove 220, and the second gear 350 is separated from the driven gear 420 of the inertia wheel assembly 400.

[0063] When the button 161 is pressed to make the button 161 move downward, the rack 162 drives the first gear 340 to rotate, and the first gear 340 drives the second gear 350. While driving the second gear 350 to rotate, the first gear 340 drives the second gear 350 to move along the rotation direction of the first gear 340. The rotating shaft of the second gear 350 moves from one end of the guide groove 220 to the other end of the guide groove 220, that is, the second gear 350 moves from the first position to the second position, so that the second gear 350 is meshed with the driven gear 420 for transmission. The rotation of the second gear 350 drives the driven gear 420 to rotate, and then drives the inertia wheel 410 to rotate. Release the button 161 to make the button 161 move upward. During resetting, the rack 162 drives the first gear 340 to rotate in the opposite direction, and the first gear 340 drives the second gear 350 to rotate in the opposite direction. While the first gear 340 drives the second gear 350 to rotate in the opposite direction, it can drive the second gear 350 to move from the second position to the first position, that is, the rotating shaft of the second gear 350 moves from the other end of the guide groove 220 back to one end of the guide groove 220, and the second gear 350 is separated from the driven gear 420. After the second gear 350 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a long time under the action of its own inertia, so that the generating coil group 230 can maintain continuous power generation for a long time to meet the needs of the electronic scale to weigh objects.

[0064] Reference Figure 3 , Fig.11 In some embodiments, along the circumference of the inertia wheel 410 , a plurality of mounting positions 411 are provided on a side of the inertia wheel 410 away from the driven gear 420 , and a plurality of magnets 231 are provided at corresponding mounting positions 411 .

[0065] Reference Figure 3 , Fig.11 In some embodiments, the generating coil assembly 230 includes a plurality of coils 232 and a mounting frame, the coils 232 are mounted on the mounting frame, and the coils 232 are electrically connected to a main control board 510 of a control system of the electronic scale.

[0066] Reference Figure 2 , Figure 6 , Figure 7In some embodiments, a return spring 150 is disposed in the housing 100, one end of the return spring 150 abuts against the button 161, and the other end abuts against the bottom wall of the housing 100. When the button 161 is pressed to move the button 161 downward, the button 161 presses the return spring 150 to compress the return spring 150, and when the button 161 is released, the return spring 150 recovers, driving the button 161 to move upward, so that the button 161 is reset.

[0067] Reference Figure 2 The button 161 includes a pressing portion 1611 and a movable portion 1612. The pressing portion 1611 is connected to the movable portion 1612. The pressing portion 1611 and the movable portion 1612 may be of a split structure or an integrated structure. A button with a split structure can facilitate assembly of the button. The rack 162 is arranged on the movable part 1612. When the pressing part 1611 is pressed downward, the movable part 1612 can be driven to move along the thickness direction of the shell 100, and then the rack 162 can be driven to move along the thickness direction of the shell 100, thereby driving the transmission gear assembly 300 to rotate, driving the second gear 350 to move from the first position to the second position, and the second gear 350 is meshed with the driven gear 420 to rotate the inertia wheel 410; when the pressing part 1611 is released, the return spring 150 can drive the movable part 1612 to move upward, and then drive the rack 162 to move upward along the thickness direction of the shell 100, thereby driving the transmission gear assembly 300 to rotate in the opposite direction, that is, driving the second gear 350 to move from the second position to the first position, and the second gear 350 is separated from the driven gear 420. After the second gear 350 is separated from the driven gear 420, the inertia wheel 410 can continue to rotate for a long time under the action of its own inertia.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A self-generating electronic scale, characterized in that: include: The housing is provided with a button assembly, wherein the button assembly includes a button and a rack, and the rack is provided on the button; A power generation assembly is arranged in the housing, the power generation assembly includes a transmission gear assembly, an inertia wheel assembly and a power generation coil group, the inertia wheel assembly includes an inertia wheel and a driven gear coaxially arranged with the inertia wheel, the inertia wheel is provided with a plurality of magnets, the plurality of magnets are arranged along the circumference of the inertia wheel, the inertia wheel and the power generation coil group are arranged oppositely, the rack is meshed with the input end of the transmission gear assembly, and the output end of the transmission gear assembly has a first position and a second position; The transmission gear assembly is configured as follows: when the button is pressed to move the button downward, the rack can drive the transmission gear assembly to rotate, and drive the output end of the transmission gear assembly to move from the first position to the second position, so that the output end of the transmission gear assembly is meshed with the driven gear for transmission, so as to drive the inertia wheel to rotate; when the button is released to reset the button upward, the rack can drive the output end of the transmission gear assembly to move from the second position to the first position, and the output end of the transmission gear assembly is separated from the driven gear, so that the inertia wheel can continue to rotate relying on its own inertia.

2. The self-generating electronic scale according to claim 1, characterized in that: The transmission gear assembly comprises a first gear and a second gear, the rack is meshed with the first gear, and the second gear is meshed with the first gear; The second gear is configured as follows: when the button is pressed to move downward, the first gear can drive the second gear to move so that the second gear engages with the driven gear; when the button is released to reset upward, the first gear can drive the second gear to separate from the driven gear.

3. The self-generating electronic scale according to claim 1, characterized in that: The transmission gear assembly comprises a driving gear, a vortex gear, a linkage gear, a first gear and a second gear, wherein the linkage gear is coaxially arranged with the vortex gear, the driving gear is meshed with the rack, the vortex gear is meshed with the driving gear, and the linkage gear is meshed with the first gear; The second gear is configured as follows: when the button is pressed to move downward, the first gear can drive the second gear to move so that the second gear engages with the driven gear; when the button is released to reset upward, the first gear can drive the second gear to separate from the driven gear.

4. The self-generating electronic scale according to claim 2, characterized in that: The power generation component includes a shell, the inner wall of the shell is provided with a guide groove, the guide groove is extended along the rotation direction of the first gear, the rotating shaft of the second gear extends into the guide groove, and the rotating shaft of the second gear can move along the guide groove.

5. The self-generating electronic scale according to claim 1, characterized in that: Along the circumference of the inertia wheel, a plurality of mounting positions are provided on a side of the inertia wheel away from the driven gear, and a plurality of magnets are provided at corresponding mounting positions.

6. The self-generating electronic scale according to any one of claims 1 to 5, characterized in that: The transmission gear assembly is an acceleration gear assembly.

7. The self-generating electronic scale according to claim 1, characterized in that: The generating coil group comprises a plurality of coils and a mounting frame, the coils are mounted on the mounting frame, and the coils are used to be electrically connected to a main control board of the electronic scale.

8. The self-generating electronic scale according to claim 1, characterized in that: A return spring is arranged in the shell, one end of the return spring abuts against the button, and the other end abuts against the bottom wall of the shell.

9. The self-generating electronic scale according to claim 1, characterized in that: The shell includes a bottom shell and a surface shell assembled on the bottom shell, the bottom shell and the surface shell form a containing cavity, and the power generation component is arranged in the containing cavity.

10. The self-generating electronic scale according to claim 1, characterized in that: The electronic scale further comprises a weighing sensor assembly, and the weighing sensor assembly is arranged on the shell.

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