Integrated electromagnetic energy harvesting device and multi-key wireless switch with such device

Abstract

The present invention discloses an integrated electromagnetic energy harvesting device and a multi-key wireless switch having the same, which relates to the technical field of new multi-key wireless switches. The present invention includes an integrated housing, a coil group, a magnet group and a torsion spring. One end inside the integrated housing is snap-connected with the coil group, and the other end inside the integrated housing is rotatably connected with a rotating shaft. A magnet group is fixedly connected to the outside of the rotating shaft, and torsion springs are sleeved at both ends of the magnet group. The magnet group includes a first pressing point contact piece, a pressing piece, a second pressing point, a magnet group rotating shaft, a mounting buckle groove, a magnetic conduction sheet and a permanent magnet block. Through the design of the structure, the device becomes a new power source with the function of electromagnetic energy harvesting, greatly improving the stability and service life of the power supply, and not generating a large amount of energy waste; at the same time, the device adopts an integrated design, with a thin module, few parts, high power generation conversion efficiency, and can realize automated production.

Description

Technical Field

[0001] The present invention relates to the technical field of new multi-key wireless switches, and specifically to an integrated electromagnetic energy harvesting device and a multi-key wireless switch having the device. Background Art

[0002] Most low-power wireless electronic products use batteries as the power source for operation, such as wireless switches, remote controls, sensors, etc.

[0003] Using batteries as the power source has limitations. Most batteries are disposable items with a limited service life. If long-term use is required, batteries must be continuously purchased. These problems will significantly increase the user's usage cost. Some batteries are also prone to rusting and leakage. Using batteries will greatly reduce the reliability of electronic products and cannot meet the need for all-weather long-term energy supply. Moreover, manufacturing batteries not only consumes resources, but also a large number of waste batteries are discarded, which will have an adverse impact on the environment and is not environmentally friendly. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated electromagnetic energy harvesting device and a multi-key wireless switch having the device, so as to solve the existing problems: the overall energy of the wireless switch is not convenient for long-term low-cost use, and the corresponding use reliability is easily affected by the existing battery power source.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] The electromagnetic energy harvesting device includes an integrated housing, a coil group, a magnet group, and a torsion spring. One end inside the integrated housing is snap-connected with the coil group. The other end inside the integrated housing is rotatably connected to a rotating shaft. A magnet group is fixedly connected to the outside of the rotating shaft. Torsion springs are sleeved at both ends of the magnet group.

[0007] The magnet group includes a first pressing point contact piece, a pressing piece, a second pressing point, a magnet group rotating shaft, a mounting snap groove, a magnetic conduction sheet, and a permanent magnet block. One end of the pressing piece is fixed with the first pressing point contact piece. An installation snap groove is opened inside the pressing piece. The installation snap groove is used for installing the magnetic conduction sheet. The magnetic conduction sheet is snap-connected inside the installation snap groove. A positioning installation hole is opened at one end of the magnetic conduction sheet. The positioning installation hole is snap-connected with the snap groove. A permanent magnet block is also fixed inside the installation snap groove. The magnetic conduction sheet is welded to both sides of the pressing piece. The inside of the magnet group rotating shaft is in clearance fit with the rotating shaft. The outside of both sides of the rotating shaft is in transition fit with the torsion spring. Second pressing points are opened on both sides of the first pressing point contact piece. The second pressing points are V-shaped.

[0008] The magnet group is used to generate kinetic energy through pressing drive, so that the coil group and the integrated core have an instantaneous movement.

[0009] The integrated housing includes a housing body, buckle holes, an integrated core, rotation holes, and spring positioning plates. Buckle holes are provided on both sides at one end of the housing body. A mating spring card is welded at the auxiliary positioning seat. The buckle holes are used for snap connection with the mating spring card. The bottom end inside the housing body is fixedly connected with an integrated core. Rotation holes are provided on both sides at the other end of the housing body. The rotation holes facilitate the rotation of the magnet group around these holes. The rotation holes and the rotating shaft are in clearance fit. Spring positioning plates are welded at the top ends on both sides of the housing body near the rotation holes. The top end of the integrated core is in contact with the coil group;

[0010] The coil group includes a hollow coil skeleton, wire grooves, a coil body, and current output poles. One end of the hollow coil skeleton is fixedly connected with a current output pole. The hollow design of the hollow coil skeleton aims to reduce the thickness of the coil body, simplify the forming die, and improve the electromagnetic induction intensity. Wire grooves are provided at the top ends on both sides of the hollow coil skeleton near the current output pole. Multiple turns of the coil body are wound around the outside of the hollow coil skeleton. The lead wires of the multiple turns of the coil body are welded to the current output poles;

[0011] The coil group is used to receive the kinetic energy generated by the drive, reciprocally cut the magnetic induction lines to cause the magnetic flux to change, and drive power generation;

[0012] An avoidance through-hole is also provided inside the housing body. The avoidance through-hole is used for avoidance and shaping. A coil installation buckle position is also provided at one end of the housing body near the buckle holes. The coil installation buckle position is used to position the coil group to prevent the coil group from detaching.

[0013] A multi-key wireless switch includes a switch panel and a mating base. An auxiliary positioning seat is fixedly connected inside the top end of the mating base. The electromagnetic energy collection device is snap-connected inside the auxiliary positioning seat and is used to collect electromagnetic energy through pressing induction to form a power supply.

[0014] Preferably, a protective cover for protecting the device is also fixedly connected to the bottom end of the switch panel. A protective silica gel for conducting the pressing force is fixedly connected to the bottom end of the protective cover. A pressing plate is fixedly connected to the bottom end of the protective silica gel. The force pressed on the switch panel is transferred to one end of the pressing plate, and the other end abuts against the bottom of the protective silica gel. By using the clearance fit between the middle of the pressing plate and the pressed part of the electromagnetic energy collection device, the electromagnetic energy collection device is driven through the lever principle. A rectification and communication circuit board is fixedly connected to the bottom end of the pressing plate. Multiple micro switches are fixedly connected to the top end of the rectification and communication circuit board. The top end of the micro switch is in contact with the protective silica gel. The bottom end of the micro switch is fixedly connected to the mating base through screws.

[0015] Preferably, contact force conduction plates are injection-molded on both sides inside the pressing plate. The contact force conduction plates and the second pressing point are in clearance fit, which is convenient for pressing the magnet group through the pressing plate to form force conduction.

[0016] Preferably, the material of the switch panel is engineering plastic, and the switch panel is integrally injection-molded from engineering plastic. Using the integrated design, the inductance is greatly increased, and the power generation can be significantly improved.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] Through the design of the structure, the device of the present invention becomes a new type of power source with the function of electromagnetic energy collection, greatly improving the stability and service life of the power supply, and not generating a large amount of energy waste; at the same time, the device adopts an integrated design, with a thin module, few parts, high power generation conversion efficiency, and can realize automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0021] Figure 2 is an exploded view of the whole of the present invention;

[0022] Figure 3 is a half-sectional view of the whole of the present invention;

[0023] Figure 4 is a partially sectional exploded view of the whole of the present invention;

[0024] Figure 5 is a schematic partial structural diagram of the electromagnetic energy collection device of the present invention;

[0025] Figure 6 is a schematic partial structural diagram of the integrated housing of the present invention;

[0026] Figure 7 is a schematic partial structural diagram of the coil group of the present invention;

[0027] Figure 8 is a schematic partial structural diagram of the magnet group of the present invention;

[0028] Figure 9 is a partial sectional view of the electromagnetic energy collection device of the present invention

[0029] In the figure: 1. Switch panel; 2. Fitting base; 3. Auxiliary positioning card seat; 4. Electromagnetic energy collection device; 5. Rectifying and communication circuit board; 6. Microswitch; 7. Pressure plate; 8. Protective silica gel; 9. Protective cover; 10. Integrated housing; 11. Coil group; 12. Magnet group; 13. Torsion spring; 14. Housing main body; 15. Buckling hole; 16. Integrated core; 17. Rotation hole; 18. Spring positioning card plate; 19. Hollow coil skeleton; 20. Wire groove; 21. Coil main body; 22. Current output pole; 23. First pressing point contact piece; 24. Pressing piece; 25. Second pressing point; 26. Magnet group rotation shaft; 27. Installation buckle groove; 28. Magnetic conduction sheet; 29. Permanent magnet block; 30. Clearance through hole; 31. Coil installation buckle position. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Refer to Figures 1-9 : Embodiment

[0032] This embodiment is used to disclose an integrated electromagnetic energy collection device.

[0033] Specifically, this electromagnetic energy collection device

[0034] Integrated electromagnetic energy collection device, the electromagnetic energy collection device 4 includes an integrated housing 10, a coil group 11, a magnet group 12 and a torsion spring 13. One end inside the integrated housing 10 is snap-connected with the coil group 11. The other end inside the integrated housing 10 is rotatably connected with a rotating shaft. The outside of the rotating shaft is fixedly connected with the magnet group 12. Both ends of the magnet group 12 are sleeved with the torsion spring 13;

[0035] The magnet group 12 includes a first pressing point contact piece 23, a pressing piece 24, a second pressing point 25, a magnet group rotation shaft 26, an installation buckle groove 27, a magnetic conduction sheet 28 and a permanent magnet block 29. One end of the pressing piece 24 is fixed with the first pressing point contact piece 23. The inside of the pressing piece 24 is provided with the installation buckle groove 27. The installation buckle groove 27 is used for installing the magnetic conduction sheet 28. The magnetic conduction sheet 28 is snap-connected inside the installation buckle groove 27. A positioning installation hole is opened at one end of the magnetic conduction sheet 28. The positioning installation hole is snap-connected with the buckle groove 27. A permanent magnet block 29 is also fixed inside the installation buckle groove 27. The two sides of the pressing piece 24 are welded with the magnet group rotation shaft 26. The inside of the magnet group rotation shaft 26 has a clearance fit with the rotating shaft. The outside of both sides of the rotating shaft has an interference fit with the torsion spring 13. The two sides of the first pressing point contact piece 23 are provided with the second pressing point 25. The second pressing point 25 is V-shaped;

[0036] The magnet set 12 is used to generate kinetic energy through pressing drive, causing the coil set 11 and the integrated core 16 to move instantaneously.

[0037] The integrated housing 10 includes a housing main body 14, a buckle hole 15, an integrated core 16, a rotation hole 17, and a spring positioning card plate 18. Buckle holes 15 are opened on both sides at one end of the housing main body 14. A fitting spring card is welded at the auxiliary positioning card seat 3, and the buckle hole 15 is used for clamping with the fitting spring card. The integrated core 16 is fixedly connected to the bottom end inside the housing main body 14. Rotation holes 17 are opened on both sides at the other end of the housing main body 14. The rotation holes 17 facilitate the rotation of the magnet set 12 around these holes. The rotation holes 17 and the rotating shaft are in clearance fit. Spring positioning card plates 18 are welded to the top ends on both sides of the housing main body 14 near the rotation holes 17. The top end of the integrated core 16 is in contact with the coil set 11.

[0038] The coil set 11 includes a hollow coil skeleton 19, a wire groove 20, a coil body 21, and a current output pole 22. A current output pole 22 is fixedly connected to one end of the hollow coil skeleton 19. The hollow design of the hollow coil skeleton 19 aims to reduce the thickness of the coil body 21, simplify the molding die, and improve the electromagnetic induction intensity. Wire grooves 20 are opened at the top ends on both sides of the hollow coil skeleton 19 near the current output pole 22. Multiple turns of the coil body 21 are wound around the outside of the hollow coil skeleton 19, and the lead wires of the multiple turns of the coil body 21 are welded to the current output pole 22.

[0039] The coil set 11 is used to receive the kinetic energy generated by the drive, reciprocally cut the magnetic induction lines to cause the magnetic flux to change, and drive power generation.

[0040] An avoidance through hole 30 is also opened inside the housing main body 14. The avoidance through hole 30 is used for avoidance and shaping. A coil installation buckle position 31 is also opened at one end of the housing main body 14 near the buckle hole 15. The coil installation buckle position 31 is used to position the coil set 11 to prevent the coil set 11 from detaching.

[0041] Embodiment 2: This embodiment is used to disclose a multi - key wireless switch including the above - mentioned Embodiment 1.

[0042] Specifically, this multi - key wireless switch includes a switch panel 1 and a fitting base 2. An auxiliary positioning card seat 3 is fixedly connected to the inside of the top end of the fitting base 2. The electromagnetic energy collection device 4 is clamped inside the auxiliary positioning card seat 3 and is used to collect electromagnetic energy through pressing induction to form a power supply.

[0043] Preferably, a protective cover 9 for protecting the device is fixedly connected to the bottom end of the switch panel 1. A protective silica gel 8 for conducting the pressing force is fixedly connected to the bottom end of the protective cover 9. A pressing plate 7 is fixedly connected to the bottom end of the protective silica gel 8. The force pressing the switch panel 1 is transmitted to one end of the pressing plate 7, and the other end abuts against the bottom of the protective silica gel 8. By using the clearance fit between the middle of the pressing plate 7 and the pressed part of the electromagnetic energy collection device 4, the electromagnetic energy collection device 4 is driven by the lever principle. A rectifying and communication circuit board 5 is fixedly connected to the bottom end of the pressing plate 7. A plurality of microswitches 6 are fixedly connected to the top end of the rectifying and communication circuit board 5. The top end of the microswitch 6 is in contact with the protective silica gel 8, and the bottom end of the microswitch 6 is fixedly connected to the mounting base 2 by screws.

[0044] Preferably, contact force guiding plates are injection-molded on both sides inside the pressing plate 7. The contact force guiding plates and the second pressing point 25 are in clearance fit, which is convenient for pressing the magnet group 12 through the pressing plate 7 to form force derivation.

[0045] Preferably, the switch panel 1 is made of engineering plastic, and the switch panel 1 is integrally injection-molded from engineering plastic. By using the integrated design, the inductance is greatly increased, and the power generation can be significantly improved.

[0046] It should be noted that in practical applications, the switch panel 1 can have various specifications to match different practical situations. For example, when the device is only used for one function, the switch panel 1 can be set in the form of a single button. When the device is used for two or more functions, the switch panel 1 can also be set in the form of multiple buttons. This embodiment will not be elaborated here.

[0047] Working principle: First, check whether the device can be used normally. Then, when in use, press the switch panel 1, causing one end of the switch panel 1 to move downward, driving the pressing plate 7 and the protective silica gel 8 at the same end to press down simultaneously. At this time, the pressing plate 7 at the other end presses against the protective silica gel 8 at the same end, and the protective silica gel 8 is used to press the microswitch 6 when pressed down, enabling the device to output a control command outward. When pressing down, since the contact guide plate at the middle position of the pressing plate 7 abuts against the first pressing point contact piece 23 and the second pressing point 25, and at the same time, the first pressing point contact piece 23 is used to compress the torsion spring 13 when pressed down, allowing the magneto - conductive sheet 28 to rotate around the rotation axis through the magnet group rotation axis 26. Therefore, when the switch panel 1 is released, the switch panel 1 will return to its original position under the elastic action of the torsion spring 13. In this way, the magneto - conductive sheet 28 will drive the current output pole 22 and the magneto - conductive sheet 28 itself made of magnetic material to swing up and down reciprocally, enabling the current output pole 22 to contact the integrated core 16 when swinging, generating magnetic energy. Using the contact between the magnetic energy and the coil body 21, the coil body 21 is used for reciprocating cutting, causing the magnetic flux to change, cooperating to convert the magnetic energy into electrical energy, and directly delivering it to the rectifying and communication circuit board 5 through the cooperation of the current output pole 22, and then directly delivering it to the electrical device through the rectifying and communication circuit board 5, thereby maintaining the power generation efficiency and stability. Since it is internal - pressing power generation, it avoids the generation of power waste and is more environmentally friendly.

[0048] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above - mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An integrated electromagnetic energy harvesting device, characterized in that: The electromagnetic energy harvesting device (4) includes an integrated housing (10), a coil group (11), a magnet group (12), and a torsion spring (13). One end inside the integrated housing (10) is snap-connected with the coil group (11). The other end inside the integrated housing (10) is rotatably connected with a rotating shaft. A magnet group (12) is fixedly connected to the outside of the rotating shaft. Both ends of the magnet group (12) are sleeved with a torsion spring (13). The magnet group (12) includes a first pressing point contact piece (23), a pressing piece (24), a second pressing point (25), a magnet group rotating shaft (26), a mounting buckle groove (27), a magnetic conduction sheet (28), and a permanent magnet block (29). One end of the pressing piece (24) is fixed with a first pressing point contact piece (23). An installation buckle groove (27) is formed inside the pressing piece (24). The installation buckle groove (27) is used for installing the magnetic conduction sheet (28). The magnetic conduction sheet (28) is snap-connected to the inner side of the installation buckle groove (27). A positioning installation hole is formed at one end of the magnetic conduction sheet (28), and the positioning installation hole is snap-connected with the buckle groove (27). A permanent magnet block (29) is also fixed inside the installation buckle groove (27). Both sides of the pressing piece (24) are welded with a magnet group rotating shaft (26). The inside of the magnet group rotating shaft (26) has a clearance fit with the rotating shaft. The outside of both sides of the rotating shaft has an interference fit with the torsion spring (13). Second pressing points (25) are formed on both sides of the first pressing point contact piece (23). The second pressing points (25) are V-shaped. The integrated housing (10) includes a housing main body (14), buckle holes (15), an integrated core (16), rotating holes (17), and spring positioning plates (18). Buckle holes (15) are formed on both sides of one end of the housing main body (14). An integrated core (16) is fixedly connected to the bottom end inside the housing main body (14). Rotating holes (17) are formed on both sides of the other end of the housing main body (14). The rotating holes (17) have a clearance fit with the rotating shaft. Spring positioning plates (18) are welded to the top ends of both sides of the housing main body (14) near the rotating holes (17). The top end of the integrated core (16) is in contact with the coil group (11).

2. The integrated electromagnetic energy harvesting device according to claim 1, characterized in that: The coil group (11) includes a hollow coil skeleton (19), wire grooves (20), a coil main body (21), and a current output pole (22). One end of the hollow coil skeleton (19) is fixedly connected with a current output pole (22). Wire grooves (20) are formed on the top ends of both sides of the hollow coil skeleton (19) near the current output pole (22). A plurality of turns of coil main body (21) are wound around the outside of the hollow coil skeleton (19). The lead wire of the plurality of turns of coil main body (21) is welded to the current output pole (22).

3. The integrated electromagnetic energy harvesting device according to claim 2, characterized in that: A clearance through hole (30) is also formed inside the housing main body (14). A coil installation buckle position (31) is formed at one end of the housing main body (14) near the buckle holes (15).

4. A multi-key wireless switch, characterized in that: The multi-button wireless switch includes the electromagnetic energy harvesting device (4) as described in any one of claims 1-3, and further includes a switch panel (1) and a mounting base (2). An auxiliary positioning card seat (3) is fixedly connected inside the top end of the mounting base (2), and the electromagnetic energy harvesting device (4) is clamped inside the auxiliary positioning card seat (3) for collecting electromagnetic energy through pressing induction to form a power supply.

5. The multi-key wireless switch according to claim 4, characterized in that: A protective cover (9) for protecting the device is further fixedly connected to the bottom end of the switch panel (1). A protective silica gel (8) for conducting the pressing pressure is fixedly connected to the bottom end of the protective cover (9). A pressing plate (7) is fixedly connected to the bottom end of the protective silica gel (8). A rectifying and communication circuit board (5) is fixedly connected to the bottom end of the pressing plate (7). A plurality of micro switches (6) are fixedly connected to the top end of the rectifying and communication circuit board (5). The top end of the micro switch (6) is in contact with the protective silica gel (8), and the bottom end of the micro switch (6) is fixedly connected to the mounting base (2) by screws.

6. The multi-key wireless switch according to claim 5, characterized in that: Contact force guiding plates are injection-molded on both sides inside the pressing plate (7), and the contact force guiding plates are in clearance fit with the second pressing point (25).

7. The multi-key wireless switch according to claim 6, characterized in that: The switch panel (1) is made of engineering plastic, and the switch panel (1) is integrally injection-molded from engineering plastic.

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