Self-generating device and carriage

Abstract

The utility model discloses a self-power-generating device and a carriage, and relates to the technical field of miniature power generation, the self-power-generating device comprises a shell, an inductance assembly and an elastic piece, and an inner cavity is formed in the shell; the inductor assembly comprises a coil, an elastic piece, a magnetic core, a PCB and a super capacitor. The coil is arranged on the peripheral wall of the inner cavity. The magnetic core is located in the inner cavity. The PCB is arranged on the shell and is electrically connected with the coil; the super capacitor is arranged on the PCB and is electrically connected with the PCB; the elastic piece is arranged on the bottom wall of the inner cavity, and the magnetic core penetrates through the coil and is connected to the end, away from the shell, of the elastic piece. In the technical scheme of the utility model, the elastic piece is connected with the magnetic core, and the magnetic core can reciprocate for multiple times relative to the coil under the action of the elastic piece after the shell vibrates once, so that the vibration frequency of the magnetic core is improved, and the power generation efficiency of the self-power-generation device is further improved; the amplitude of slight vibration of the shell on the magnetic core through the elastic piece is increased, and power can be effectively generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to micro power generation technical field, especially a self -power device and carriage. BACKGROUND

[0002] Self -power technology is through gathering environment and human activity's sound, light, heat, force etc. all kinds of forms of energy, will it transform into electric energy, and power is supplied for micro low -power consumption electronic system or equipment. Vibrating self -power device is a kind of equipment that mechanical vibration energy is converted into electric energy, and vibration causes the relative movement between closed coil and magnetic core, produces induced electromotive force and electric current, based on faraday electromagnetic induction law, through the structure of magnetic core and closed coil, vibration energy is converted into electric energy.

[0003] At present, in the self -power device of vibration, basically selects magnetic suspension or pulley two forms to place magnetic core in the copper coil that is wound and carries out vibration power generation. But if applied to train, due to the frequency of magnetic core vibration in vertical direction is low, will lead to the power generation efficiency of self -power device is too low and can not be used. UTILITY MODEL CONTENTS

[0004] The utility model discloses a self -power device and carriage, aims at improving the vibration frequency of magnetic core to improve the power generation efficiency of self -power device.

[0005] To realize the above-mentioned purpose, the self -power device provided by the utility model comprises:

[0006] Shell, the shell forms inner chamber;

[0007] Inductance component, the inductance component includes coil, elastic piece, magnetic core, PCB board and super capacitor;The coil is located at the peripheral wall of the inner chamber, and the magnetic core is located in the inner chamber;The PCB board is arranged on the shell and is electrically connected with the coil;The super capacitor is arranged on the PCB board and is electrically connected with the PCB board;And

[0008] Elastic piece, the elastic piece is arranged on the bottom wall of the inner chamber, and the magnetic core passes through the coil and is connected to the end of the elastic piece away from the shell.

[0009] In an embodiment, the shell forms a retaining ring, the retaining ring is located in the inner chamber, and the inner chamber is divided into a vibration chamber and a mounting chamber by the retaining ring, and the mounting chamber is located at the outer periphery of the vibration chamber;The magnetic core and the elastic piece are both located in the vibration chamber, and the coil is located in the mounting chamber.

[0010] In an embodiment, the PCB board is arranged on the outer wall of the end of the vibration chamber away from the elastic piece, and the super capacitor is arranged on the side of the PCB board away from the vibration chamber.

[0011] In an embodiment, the self-generating device further comprises a magnet, which is arranged on the inner wall of the vibration cavity away from one end of the elastic member.

[0012] In an embodiment, the magnetic core is a neodymium iron boron permanent magnet.

[0013] In an embodiment, the shell comprises a housing and an upper cover, the upper cover is detachably connected to the housing and forms the inner cavity together with the housing; the PCB is arranged on the side of the upper cover away from the housing, and the super capacitor is arranged on the side of the PCB away from the upper cover.

[0014] In an embodiment, the self-generating device comprises a plurality of elastic members, each of the elastic members is arranged on the bottom wall of the inner cavity, and the magnetic core is connected to each of the elastic members.

[0015] In an embodiment, the elastic member is a spring.

[0016] In an embodiment, the self-generating device further comprises a backup battery, which is electrically connected to the PCB.

[0017] The utility model further proposes a car, apply to train, car includes:

[0018] A shell is formed with an inner cavity;

[0019] An inductance assembly comprises a coil, an elastic member, a magnetic core, a PCB and a super capacitor; the coil is arranged on the peripheral wall of the inner cavity, the magnetic core is located in the inner cavity; the PCB is arranged on the shell and is electrically connected to the coil; the super capacitor is arranged on the PCB and is electrically connected to the PCB; and

[0020] An elastic member is arranged on the bottom wall of the inner cavity, the magnetic core passes through the coil and is connected to one end of the elastic member away from the shell.

[0021] In the technical scheme of the utility model, the self-generating device includes a shell, an inductor assembly and an elastic piece, the shell forms an inner cavity, the inductor assembly includes a coil, the elastic piece, a magnetic core, a PCB and a super capacitor, the coil is arranged on the peripheral wall of the inner cavity, the magnetic core is located in the inner cavity, the PCB is arranged on the shell and is electrically connected with the coil, the super capacitor is arranged on the PCB and is electrically connected with the PCB, the elastic piece is arranged on the bottom wall of the inner cavity, the magnetic core passes through the coil and is connected to one end of the elastic piece away from the shell. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0023] Figure 1 The explosion map of the self-generating device of one embodiment of the utility model is provided.

[0024] Figure 2 The structural schematic view of the shell in the self-generating device is provided.

[0025] Figure 3 The structural schematic view of the shell in the self-generating device is provided. Figure 2 The sectional view along A-A.

[0026] Explanation of the reference numerals:

[0027] Reference Name Reference Name 1000 Self-generating device 21 Coil 1 Housing 22 Magnetic core 1a Inner cavity 23 PCB board 1a1 Vibration cavity 24 Super capacitor 1a2 Mounting cavity 3 Elastic member 1b Retaining ring 4 Magnet 11 Shell 5 Backup battery 12 Upper cover

[0028] The realization, functional characteristics and advantages of the utility model will be further explained by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be clearly and completely described by combining with the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] It should be noted that if the embodiment of the utility model has the direction indication (such as up, down, left, right, front, back), the direction indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, if the specific posture changes, the direction indication also changes accordingly.

[0031] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appears in the whole text, which means three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not in the protection scope required by the utility model.

[0032] The utility model provides a kind of self-generating device 1000.

[0033] Please refer to Figure 1 、 Figure 2 And Figure 3 In an embodiment of the utility model, the self-generating device 1000 includes shell 1, inductive component and elastic member 3, shell 1 is formed with inner cavity 1a;Inductive component includes coil 21, elastic member 3, magnetic core 22, PCB board and super capacitor 24;Coil 21 is located in the circumferential wall of inner cavity 1a, magnetic core 22 is located in inner cavity 1a;PCB board is located in shell 1, and is electrically connected with coil 21;Super capacitor 24 is located in PCB board, and is electrically connected with PCB board;Elastic member 3 is located in the bottom wall of inner cavity 1a, magnetic core 22 passes through coil 21, and is connected to the end of elastic member 3 away from shell 1.

[0034] In the technical scheme of the utility model, elastic member 3 is used to connect magnetic core 22, after shell 1 vibrates once, magnetic core 22 can reciprocate multiple times relative to coil 21 by the action of elastic member 3, so as to improve the vibration frequency of magnetic core 22, and further improve the power generation efficiency of self-generating device 1000;At the same time, after the slight vibration of shell 1 is transmitted through elastic member 3, the amplitude acting on magnetic core 22 will also increase, so that the original micro-amplitude that cannot generate electricity can also effectively generate electricity after the action of elastic member 3;In summary, the power generation efficiency of self-generating device 1000 is improved.

[0035] Referring to Figure 1 and Figure 3 In an embodiment of the present application, the shell 1 is formed with a baffle ring 1b, the baffle ring 1b is located in the inner cavity 1a and divides the inner cavity 1a into a vibration cavity 1a1 and a mounting cavity 1a2, the mounting cavity 1a2 is located at the outer periphery of the vibration cavity 1a1; the magnetic core 22 and the elastic member 3 are both located in the vibration cavity 1a1, and the coil 21 is located in the mounting cavity 1a2. By placing the magnetic core 22 and the elastic member 3 in the vibration cavity 1a1 and the coil 21 in the mounting cavity 1a2, direct contact between the coil 21 and the magnetic core 22 can be effectively avoided, thereby avoiding the coil 21 from disturbing the vibration of the magnetic core 22 and affecting the power generation efficiency of the self-power generation device 1000.

[0036] Referring to Figure 3 In an embodiment of the present application, the PCB is arranged on the outer wall of the vibration cavity 1a1 away from the elastic member 3 at one end, and the super capacitor 24 is arranged on the side of the PCB away from the vibration cavity 1a1. By arranging the PCB and the super capacitor 24 on the outer wall of the vibration cavity 1a1, the influence of the movement of the magnetic core 22 and the elastic member 3 inside the vibration cavity 1a1 on the PCB and the super capacitor 24 can be reduced, thereby improving the protection of the PCB and the super capacitor 24 and prolonging the service life.

[0037] Referring to Figure 1 and Figure 3 In an embodiment of the present application, the self-power generation device 1000 further comprises a magnet 4, which is arranged on the inner wall of the vibration cavity 1a1 away from the elastic member 3 at one end. The magnet 4 can generate a repulsive force on the magnetic core 22, thereby avoiding the magnetic core 22 from being damaged by colliding with the inner wall of the vibration cavity 1a1 when vibrating, and improving the service life of the self-power generation device 1000. Meanwhile, the repulsive force of the magnet 4 can ensure that the magnetic core 22 freely and effectively vibrates in the vibration cavity 1a1 without being hindered by the inner wall, which helps to improve the vibration efficiency of the magnetic core 22 and the power generation efficiency of the self-power generation device 1000.

[0038] The magnetic core 22 can be a neodymium-iron-boron permanent magnet, a samarium-cobalt magnet, or a ferrite. In an embodiment of the present application, the magnetic core 22 is a neodymium-iron-boron permanent magnet. The neodymium-iron-boron permanent magnet is currently the strongest permanent magnetic material, has the characteristics of high residual magnetism, high coercive force, and high magnetic energy product, and has strong anti-demagnetization ability and stable magnetism in various environments. The neodymium-iron-boron permanent magnet has relatively low cost. Due to the high magnetic energy product of the neodymium-iron-boron magnetic material, it has more advantages when applied to the self-power generation device 1000, which is a miniature power generation equipment. In summary, the magnetic core 22 is preferably a neodymium-iron-boron permanent magnet.

[0039] Referring to Figure 2 and Figure 3In an embodiment of the present application, the shell 1 comprises a shell body 11 and an upper cover 12, the upper cover 12 is detachably connected to the shell body 11 and forms an inner cavity 1a together with the shell body 11; the PCB is arranged on a side of the upper cover 12 away from the shell body 11, and the super capacitor 24 is arranged on a side of the PCB away from the upper cover 12. The design that the upper cover 12 is detachably connected to the shell body 11 makes it more convenient to maintain the internal components, and the user can easily open the upper cover 12 for necessary inspection and maintenance or replacement of components.

[0040] The self-power generation device 1000 comprises a plurality of elastic members 3. Please refer to Figure 1 and Figure 3 In an embodiment of the present application, the self-power generation device 1000 comprises five elastic members 3, each of which is arranged on the bottom wall of the inner cavity 1a, and the magnetic core 22 is connected to each elastic member 3. The five elastic members 3 can more effectively transmit vibration energy to the magnetic core 22, can ensure that the magnetic core 22 can generate a greater amplitude when subjected to vibration, thereby increasing the change of magnetic flux, so as to improve the power generation efficiency; the five elastic members 3 can cooperate with each other to limit the vibration direction of the magnetic core 22, reduce the direct contact between the magnetic core 22 and the cavity wall of the inner cavity 1a, thereby avoiding the coil 21 from disturbing the vibration of the magnetic core 22 and affecting the power generation efficiency of the self-power generation device 1000.

[0041] The elastic member 3 can be a spring, and can also be a polyurethane foam. In an embodiment of the present application, the elastic member 3 is a spring. The spring has a high elastic coefficient and can provide greater resilience under the action of the same force, so as to make the vibration amplitude of the magnetic core 22 greater, thereby making the power generation efficiency of the self-power generation device 1000 higher.

[0042] Please refer to Figure 1 In an embodiment of the present application, the self-power generation device 1000 further comprises a backup battery 5, and the backup battery 5 is electrically connected to the PCB. When the super capacitor 24 starts to charge, the system will automatically cut off the power supply path of the super capacitor 24 to the load (i.e. the device requiring power supply) and switch to supply power to the load by the backup battery 5. The purpose is to ensure that the super capacitor 24 can stably complete the charging process without being affected by the load; once the super capacitor 24 is fully charged (reaches a preset voltage threshold or energy storage amount), the system will switch again, i.e. cut off the power supply of the backup battery 5 to the load, while restoring the direct power supply of the super capacitor 24 to the load.

[0043] It should be noted that the automatic switching circuit can be built by using MOS tube, and the super capacitor 24 is provided with double threshold values, i.e., a charging threshold value and a discharging threshold value, and the addition of the control circuit can ensure that the standby battery 5 and the super capacitor 24 are automatically switched to supply power to the load; when the super capacitor 24 is charged, the super capacitor 24 power supply circuit is cut off and powered by the standby battery 5; when the super capacitor 24 charging reaches the discharging threshold value, the standby battery 5 power supply circuit is cut off and powered by the super capacitor 24; when the super capacitor 24 discharges to the charging threshold value, the super capacitor 24 power supply circuit is cut off and powered by the standby battery 5.

[0044] The utility model discloses still propose a kind of compartments, the compartment includes compartment body, wheel and self-powered device 1000, the specific structure of the self-powered device 1000 refers to above-mentioned embodiment, since the present compartment has adopted all technical solutions of above-mentioned all embodiments, therefore at least have all beneficial effects brought by the technical solution of above-mentioned embodiment, here no longer repeat one by one.

[0045] The above-mentioned is only the exemplary embodiment of the utility model, and not therefore limit the patent range of the utility model, all equivalent structure transformations made in the technical concept of the utility model using the utility model specification and drawing contents, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A self-generating power device, characterized by, The self-generating device comprises: a shell (1) formed with an inner cavity (1a); an inductance assembly comprising a coil (21), a magnetic core (22), a PCB board (23) and a super capacitor (24); the coil (21) is arranged on the peripheral wall of the inner cavity (1a), the magnetic core (22) is located in the inner cavity (1a), the PCB board (23) is arranged on the shell (1) and electrically connected with the coil (21), and the super capacitor (24) is arranged on the PCB board (23) and electrically connected with the PCB board (23); and an elastic member (3) arranged on the bottom wall of the inner cavity (1a), the magnetic core (22) penetrates through the coil (21) and is connected to one end of the elastic member (3) away from the shell (1).

2. The self-generating power device of claim 1, wherein, The shell (1) is formed with a blocking ring (1b) located in the inner cavity (1a) and separating the inner cavity (1a) into a vibration cavity (1a1) and a mounting cavity (1a2), the mounting cavity (1a2) is located at the outer periphery of the vibration cavity (1a1), and the magnetic core (22) and the elastic member (3) are both located in the vibration cavity (1a1), and the coil (21) is located in the mounting cavity (1a2).

3. The self-generating power device of claim 2, wherein, The PCB board (23) is arranged on the outer wall of one end of the vibration cavity (1a1) away from the elastic member (3), and the super capacitor (24) is arranged on the side of the PCB board (23) away from the vibration cavity (1a1).

4. The self-generating power device of claim 3, wherein, The self-generating device further comprises a magnet (4) arranged on the inner wall of one end of the vibration cavity (1a1) away from the elastic member (3).

5. The self-generating power device of claim 1, wherein, The magnetic core (22) is a neodymium-iron-boron permanent magnet.

6. The self-generating power device of any one of claims 1 to 5, wherein, The shell (1) comprises a shell body (11) and an upper cover (12), the upper cover (12) is detachably connected to the shell body (11) and forms the inner cavity (1a) together with the shell body (11), the PCB board (23) is arranged on the side of the upper cover (12) away from the shell body (11), and the super capacitor (24) is arranged on the side of the PCB board (23) away from the upper cover (12).

7. The self-generating power device of any one of claims 1 to 5, wherein, The self-generating device comprises a plurality of elastic members (3), each of the elastic members (3) is arranged on the bottom wall of the inner cavity (1a), and the magnetic core (22) is connected to each of the elastic members (3).

8. The self-generating power device of claim 7, wherein, The elastic member (3) is a spring.

9. The self-generating power device of any one of claims 1 to 5, wherein, The self-generating device further comprises a backup battery (5) electrically connected with the PCB board (23).

10. A car for use in a train, characterized in that The vehicle compartment comprises a compartment body, wheels rotatably connected to the compartment body, and the self-generating device according to any one of claims 1 to 9, and the self-generating device is arranged on the wheels.

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