Door body opening and closing power generation device

Abstract

The utility model discloses a door body switch power generation device, and aims to solve the problem of endurance caused by frequent replacement due to limited battery capacity of an electronic door lock. The device comprises a door frame, a door plate, a door lock and an energy conversion module. The core of the energy conversion module is a gear set. The gear set comprises a first gear, a second gear, a third gear and a fourth gear, the at least one intermediate transmission gear is positioned in the door plate and is meshed with the first gear; the second gear is located in the door plate and serves as a final power output end. When the door plate is opened and closed, the first gear drives the intermediate transmission gear, and the second gear drives the micro generator in the door plate to generate electricity after speed increase. The electric energy is processed by a control circuit in the door plate and then charges a rechargeable battery, and the battery supplies power to the door lock. Door body opening and closing energy is effectively utilized to charge the door lock battery, the endurance is prolonged, replacement is reduced, and convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to door lock technical field more particularly, relate to a door body switch power generation device. BACKGROUND

[0002] With the continuous improvement of intelligent level of life, electronic door lock has been widely used in various residential and commercial places, and brings convenient unlocking experience and enhanced security protection for users. However, most of the electronic door locks on the market at present mainly rely on the built-in battery as the power source of the core electronic system (such as fingerprint identification module, password input module, induction card module, motor drive and wireless communication module, etc.). Due to the limited capacity of the battery itself, and the continuous power consumption of various functions of the electronic door lock, the service life of the battery is relatively short. Users have to face the trouble of frequent checking of battery power, regular replacement of battery or charging of battery. This not only increases the use cost and maintenance effort of users, but more seriously, once the battery power is unexpectedly consumed and not handled in time, it may lead to the failure of the door lock to normally open or close, which brings inconvenience to daily life, and even causes safety problems. In addition, a large number of discarded disposable batteries also cause pressure on environmental protection that cannot be ignored.

[0003] Although some technical solutions for generating electricity by using door body movement appear in the prior art, for example, through a complex mechanical energy storage device (such as a clockwork mechanism) to collect energy and then drive a generator, or setting a power generation unit on the door frame to obtain energy through a specific linkage mechanism. But these schemes have problems such as long energy conversion path, complex structure, mechanical wear and tear and efficiency decay, or have many restrictions on the structure and installation of the door frame.

[0004] Therefore, how to effectively utilize the mechanical energy generated during the opening and closing of the door body, and provide power for the battery of the electronic door lock in a simple structure, convenient integration and high energy conversion efficiency, so as to solve the inconvenience and potential problems caused by the limited capacity of the battery, short service life and frequent replacement, is a technical problem to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a door body switch power generation device which can overcome the inconvenience and problems caused by the limited capacity of the battery, short service life and frequent replacement of the electronic door lock and other door-mounted devices in the prior art.

[0006] The utility model provides a door body switch power generation device, which comprises:

[0007] The door frame; the door plate rotatably connected with the door frame through at least one hinge; the door lock installed on the door plate; the energy conversion module, the component part of which is fixed to the door frame and the other part of which is accommodated in the door plate, the energy conversion module comprising: a gear set, the gear set comprising: a first gear fixedly installed on the door frame as a power input end of the gear set; at least one intermediate transmission gear located in the door plate, the input end of which is in meshing transmission with the first gear to drive the intermediate transmission gear to rotate during the opening and closing of the door plate; a second gear located in the door plate as a final power output end of the gear set and driven to rotate by the intermediate transmission gear; a micro generator installed in the door plate, the input shaft of the micro generator being in transmission connection with the second gear; a control circuit integrated in the door plate, the input end of the control circuit being in electrical connection with the output end of the micro generator; at least one rechargeable battery electrically connected to the output end of the control circuit for storing the electric energy generated by the micro generator and supplying power to the door lock; the gear set drives the micro generator to generate electricity through the synergistic action of the first gear, the intermediate transmission gear and the second gear after the rotation obtained from the first gear is speeded up.

[0008] Optionally, the rechargeable battery is arranged in the door plate.

[0009] Optionally, the rechargeable battery arranged in the door plate also serves as a backup battery of the door lock to supply power to the door lock when the main battery of the door lock is powered off or has insufficient power.

[0010] Optionally, the rechargeable battery is built in the door lock.

[0011] Optionally, the first rechargeable battery arranged in the door plate and the second rechargeable battery built in the door lock are further included; the output end of the control circuit is connected to the first rechargeable battery; the first rechargeable battery is further electrically connected to the second rechargeable battery through a charge management branch.

[0012] Optionally, the total speed-up transmission ratio from the input of the first gear to the output of the second gear of the gear set is set to be in the range of 35:1 to 40:1.

[0013] Optionally, the first gear is a crown gear or a bevel gear; if the first gear is a crown gear, the intermediate transmission gear directly meshing with the first gear in the gear set is a straight-tooth cylindrical gear; if the first gear is a bevel gear, the intermediate transmission gear directly meshing with the first gear in the gear set is a bevel gear matched with the first gear.

[0014] Optionally, the micro generator generates alternating current; the control circuit comprises: a rectification and filtering module in electrical connection with the output end of the micro generator; a DC-DC voltage conversion module in electrical connection between the input end and the output end of the rectification and filtering module; a charge management module in electrical connection between the input end and the output end of the DC-DC voltage conversion module, the output end of the charge management module being used to connect the rechargeable battery.

[0015] Optionally, the rectification and filtering module comprises a bridge rectification circuit and a filtering capacitor.

[0016] Optionally, the DC-DC voltage conversion module comprises a switching power supply integrated circuit and an inductor and at least one associated capacitor working in cooperation with the switching power supply integrated circuit; and / or the charge management module comprises a dedicated charge management integrated circuit and at least one associated capacitor working in cooperation with the dedicated charge management integrated circuit.

[0017] According to the technical content disclosed by the utility model, the following beneficial effects are achieved:

[0018] The utility model discloses a fixed first gear (as the input end of gear set) is set up on the door frame, and the speed increasing gear set including intermediate transmission gear and the second gear (as the output end of gear set) of final connection generator is integrated in the door plate, and miniature generator and control circuit cooperate chargeable battery power supply for door lock, realize the effective capture and electric energy conversion of the mechanical energy produced in the door body switch process. When the door plate is opened or closed operation, the fixed first gear drives the gear set in the door plate to run, and through the internal speed increasing mechanism, finally by the second gear high -speed drive miniature generator generates electricity, and the electric energy produced is safely charged for chargeable battery after the intelligent processing of control circuit, and then more durable and reliable power support is provided for door lock and other door load equipment. This design ingeniously utilizes the action of user daily switch door to carry out energy self -replenishment, thereby the frequency of user replacement battery and the dependence on external power charging are reduced significantly, the convenience of door lock use and the overall reliability of system are improved, and simultaneously also help reducing the environmental pressure due to discarded battery, and the design concept of energy saving and environmental protection is embodied.

[0019] Other features of the utility model and its advantages will become clear from the following detailed description of exemplary embodiments of the utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

[0021] Figure 1 It is the structure diagram of the door body switch power generation device of the utility model under the open door state.

[0022] Figure 2 It is the structure diagram of the door body switch power generation device of the utility model under the close door state.

[0023] Figure 3 It is the gear set structure diagram of the utility model.

[0024] Figure 4 A detailed principle block diagram of the control circuit part of the utility model.

[0025] The drawing label explanation: 1, door frame; 2, door panel; 3, hinge; 4, gear set; 401, first gear; 402, second gear; 5, electric wire; 6, door lock; 7, micro generator; 8, rechargeable battery. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. Note that the relative arrangement, numerical expressions, and numerical values of components and steps set forth in these embodiments are not limiting to the scope of the present utility model unless otherwise specifically stated.

[0027] The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the present utility model and its application or uses.

[0028] Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification.

[0029] In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as limiting. Other examples of the exemplary embodiments can therefore have different values.

[0030] Note that similar reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0031] Reference Figure 1 , Figure 2 and Figure 3 , the present utility model discloses a door body switch power generation device. The core idea of the present utility model is that through a set of integrated mechanical and electrical system, the mechanical energy generated when the user daily switches the door panel 2 is captured, and it is efficiently converted into electric energy, which is used to charge the rechargeable battery 8 of the door lock 6 or other electronic equipment installed on the door panel 2.

[0032] The overall working manner of the device is as follows: when the door plate 2 rotates relative to the door frame 1, the first gear 401 fixedly installed on the door frame 1 (as a power input end of the gear set 4) is engaged with the first intermediate transmission gear in the gear set 4 contained in the door plate 2. The engagement drives the entire gear set 4 to operate. The rotation speed is amplified inside the gear set 4 through a series of intermediate transmission gears, and the amplified high-speed rotation is transmitted to the rotor of the micro generator 7 through the second gear 402 at the output end of the gear set 4. The micro generator 7 converts the received mechanical energy into alternating current energy. Since the utility model preferably adopts an alternating current generator and a subsequent bridge rectifier circuit, whether the door plate 2 is opened or closed (that is, the micro generator 7 can rotate in different directions), alternating current energy that can be effectively converted can be generated, ensuring that energy can be captured in the bidirectional door body movement. The generated alternating current energy is sent to the control circuit integrated in the door plate 2. The control circuit rectifies, filters, DC-DC voltage conversion adjusts and charge management in turn, and finally safely and efficiently charges the processed electrical energy into the rechargeable battery 8. The electrical energy stored in the rechargeable battery 8 is used to power the door lock 6. In this way, energy collection and autonomous charging are realized by using the door body opening and closing action, thereby prolonging the endurance of the door lock battery.

[0033] Specifically, the door body opening and closing power generation device of the utility model mainly consists of a door frame 1, a door plate 2, a door lock 6 and an energy conversion module arranged between or in the door frame 1 and the door plate 2. The energy conversion module is the core of energy capture and conversion.

[0034] The component part of the energy conversion module is fixed to the door frame 1 and contained in the door plate 2, and the main components and working relationship are as follows:

[0035] The gear set 4 is a key mechanical transmission and speed increasing mechanism for realizing the rotation from low-speed door plate to high-speed generator. As a whole transmission system, it mainly includes the first gear 401 fixed to the door frame 1, a plurality of intermediate transmission gears contained in the door plate 2 and the second gear 402 also contained in the door plate 2. When the door plate 2 is opened and closed, the first gear 401 fixed to the door frame 1 is engaged with the first intermediate transmission gear in the door plate 2 as a power input, thereby driving the intermediate transmission gear to rotate. Then, the rotation speed is gradually amplified through the speed increasing gear pair composed of one or more intermediate transmission gears, and finally transmitted to the second gear 402 as the output end, so that it rotates at high speed.

[0036] As Figure 1 and Figure 2As shown, the first gear 401 is fixedly installed at a specific position on the door frame 1, such as the inner top side or the inner vertical edge near the hinge 3. When the door panel 2 rotates relative to the door frame 1, the first gear 401 remains stationary. Its structure can be selected as a crown gear or a bevel gear, or even a spur gear, depending on the meshing requirements with the gears inside the door panel. The teeth of the crown gear are distributed on the end face of the disc, suitable for converting the planar rotation of the door panel into the rotational input of the gear set; the bevel gear is used to transmit motion between two intersecting axes, smoothly changing the direction of motion transmission.

[0037] Combination Figure 1 and Figure 3 The intermediate transmission gear, located within door panel 2, is the core component for speed amplification. The first intermediate transmission gear, which directly meshes with the first gear 401, must be of a type matching the first gear 401: if the first gear 401 is a crown gear, then the intermediate transmission gear is typically a spur gear; if the first gear 401 is a bevel gear, then the intermediate transmission gear should be a matching bevel gear. The speed is increased through the cascading of at least one or more subsequent gear pairs (e.g., a combination of a large gear driving a small gear).

[0038] The second gear 402 is located inside the door panel 2 and is the final output gear of the gear set 4. It carries the high-speed rotational motion after the speed increase.

[0039] The micro generator 7 is installed inside the door panel 2, and its input shaft is directly fixedly connected to the second gear 402 of the gear set 4 (e.g., through a key, spline or interference fit).

[0040] When the second gear 402 rotates at high speed, the rotor of the micro generator 7 rotates at a corresponding high speed, thereby converting the input mechanical energy into alternating current electrical energy. The design goal of the entire gear set 4 is to ensure that, at normal door opening and closing speeds, the micro generator 7 reaches its effective power generation speed through a total speed increase ratio of 35:1 to 40:1. Specifically, in the transmission direction from the first gear 401 to the second gear 402, the gear ratios between the multiple sets of gears that mesh sequentially are 48 / 16, 16 / 19, 40 / 19, 40 / 19, and 40 / 12, respectively, and the total speed increase ratio of the gear set 4 is 37.3:1.

[0041] The control circuit is integrated on one or more printed circuit boards inside the door panel 2, and its input terminals (such as...) Figure 4 The generator connection terminal (shown as H1) is electrically connected to the output terminal of the micro-generator 7. The control circuit is responsible for converting the normally unstable and alternating current electrical energy output by the micro-generator 7 into stable direct current electrical energy suitable for charging the rechargeable battery 8. Figure 4The detailed schematic diagram of the power conversion part in the control circuit is shown. The structure of the power conversion circuit includes, in sequence according to the signal processing flow, an input interface module, a transformer module, a rectifier module, an input filter module, a DC-DC conversion module, and an output filter module.

[0042] The input interface module: the starting end of the circuit is a generator input interface H1, which includes at least two terminals (such as terminals 1 and 2 shown in the figure) for receiving alternating current power from the micro generator 7.

[0043] The transformer module: the output end of the input interface H1 is connected to the primary coil (such as pins 1 and 2 shown in the figure) of the transformer U1. The transformer U1 is an isolation transformer, which has a primary coil and a secondary coil (such as pins 3 and 4 shown in the figure). The main function of the transformer U1 is to adjust the voltage level as needed (for example, to convert a higher and unstable alternating voltage that may exist at the input end into a lower alternating voltage), and to achieve electrical isolation between the input end and the subsequent circuit, thereby improving safety.

[0044] The rectifier module: the two output ends of the secondary coil of the transformer U1 are connected to the alternating current input end (such as pins 3 and 4 shown in the figure) of the rectifier bridge D1. The rectifier bridge D1 is preferably a full-wave rectifier bridge, which converts the alternating current from the secondary side of the transformer into pulsating direct current. The rectifier bridge D1 has a direct current positive output end (such as pin 1 shown in the figure, marked as +) and a direct current negative output end (such as pin 2 shown in the figure, marked as -). In this embodiment, the direct current negative output end is connected to the common reference ground of the circuit.

[0045] The input filter module: the direct current positive output end of the rectifier bridge D1 is connected to the input filter module. The input filter module is used to smooth the pulsating direct current output after rectification. In this embodiment, the filter module adopts a π-type LC filter structure, which specifically includes a series inductor L1, and a first filter capacitor C1 and a second filter capacitor C10 connected in parallel to the ground after L1. The capacitor C1 is preferably an electrolytic capacitor to provide a large capacitance value for low-frequency filtering; the capacitor C10 can be a ceramic capacitor, etc., for high-frequency filtering.

[0046] The DC-DC conversion module: the output end of the input filter module is connected to the voltage input pin VIN (such as pin 1 shown in the figure) of the DC-DC conversion circuit U3. The DC-DC conversion circuit U3 is an integrated circuit module, which is used to accurately convert or stabilize the input direct current voltage that has been preliminarily filtered to the subsequent charge management module (not shown in the figure). Figure 4The DC-DC conversion module (not shown in detail) receives the input voltage VIN from the micro generator 7, and outputs a required direct current voltage value VOUT (for example, pin 5 shown in the figure). The module also includes a ground pin VSS (pin 2) and an enable control pin CE (pin 3), which in this embodiment is connected to the VIN pin, so that the DC-DC conversion circuit is always in working state.

[0047] Output filter module: The voltage output pin VOUT of the DC-DC conversion circuit U3 is connected to the output filter module, which includes a third filter capacitor C13 and a fourth filter capacitor C12 connected in parallel to the reference ground, for further stabilizing the output voltage VOUT.

[0048] The above-mentioned power conversion circuit (as shown in Figure 4 provides a stable and reliable input voltage VOUT for the subsequent charge management module.

[0049] Charge management module (not shown in detail in Figure 4 ): This module receives the stable direct current VOUT output from the DC-DC conversion module. Its core is usually a dedicated charge management integrated circuit, which works with related peripheral elements. This part is responsible for implementing intelligent charging strategies for the rechargeable battery 8 connected to its output, such as for lithium-ion batteries, which may include automatic switching between pre-charging, constant-current charging, constant-voltage charging, and other stages, and provides comprehensive safety protection functions such as overcharging protection, over-discharging protection (through the door lock itself or a battery protection board), over-current protection, and over-temperature protection.

[0050] At least one rechargeable battery 8 is connected to the output of the charge management module of the control circuit through a wire. Its main function is to store the processed electrical energy from the control circuit, and to provide power to the door lock 6 installed on the door panel 2 when needed, to meet the daily work and standby consumption of the door lock.

[0051] Wire 5 is used to establish reliable electrical connection between the output of micro generator 7 and the input of control circuit, as well as between the output of control circuit and rechargeable battery 8, and even between rechargeable battery 8 and door lock 6, to transmit electrical energy.

[0052] In order to improve practicality and reliability, the arrangement of rechargeable battery 8 can have multiple options. In some embodiments, the arrangement and backup scheme of the battery includes:

[0053] Option 1: Built-in battery in door panel. The rechargeable battery 8 can be directly placed in a separate battery compartment inside the door panel 2, and charged directly by the control circuit, and used as the main or auxiliary power supply for the door lock 6.

[0054] Scheme two: the battery built-in door plate as a backup power supply. In the case that the door lock 6 itself has a main power supply battery (not separately labeled), the rechargeable battery installed in the door plate 2 can be used as a backup battery for the door lock 6. In this preferred embodiment, when it is detected that the main battery of the door lock 6 is too low or fails, the backup battery in the door plate can be activated by a suitable switching circuit or by the power management system of the door lock, automatically or manually, to supply power to the door lock 6, thereby avoiding the failure of the door lock due to the main battery problem, greatly improving the reliability of the system.

[0055] Scheme three: battery built-in door lock. The rechargeable battery 8 can also be directly built-in in the housing of the door lock 6, and the output of the control circuit directly charges this battery built-in door lock.

[0056] Scheme four: dual battery cooperation. A more comprehensive design can include a first rechargeable battery installed in the door plate 2 and a second rechargeable battery built-in in the door lock 6. The primary charging object of the control circuit is the first rechargeable battery in the door plate. In addition, a charging management branch can be designed to take power from the first rechargeable battery. When it is detected that the second rechargeable battery built-in in the door lock is below a certain preset threshold, or when the first rechargeable battery in the door plate is sufficient (e.g. exceeds a certain set threshold), the first rechargeable battery can supplement the charging of the second rechargeable battery through the charging management branch. This dual battery cooperation mode can maximize the use of the energy generated by the door switch and provide a more flexible and multiple protection power supply scheme for the door lock.

[0057] Those skilled in the art should understand that the above embodiments are only to illustrate the present application, and are not to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. For example, the specific number of intermediate transmission gears in the gear set 4 and the total speed-up transmission ratio, the specific tooth profile parameters and material selection of the first gear 401 and the second gear 402, the type and rated parameters of the micro generator 7, the specific circuit implementation scheme of each part in the control circuit and the model specification of the components used, as well as the type, capacity and specific arrangement of the rechargeable battery 8, etc. can be flexibly adjusted and optimized according to the specific needs of the actual application scene

[0058] Although some specific embodiments of the present application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A door switch power generation device, characterized in that, include: Door frame; The door panel is rotatably connected to the door frame by at least one hinge; Door lock, installed on the door panel; An energy conversion module, the components of which are partially fixed to the door frame and partially housed within the door panel, the energy conversion module comprising: Gear set, the gear set comprising: The first gear is fixedly installed on the door frame and serves as the power input end of the gear set. At least one intermediate transmission gear located within the door panel has its input end meshing with the first gear to drive the intermediate transmission gear to rotate during the opening and closing of the door panel; The second gear, located inside the door panel, serves as the final power output end of the gear set and is driven to rotate by the intermediate transmission gear. A micro generator is installed inside the door panel, and the input shaft of the micro generator is connected to the second gear transmission. The control circuit is integrated into the door panel, and its input terminal is electrically connected to the output terminal of the micro generator. At least one rechargeable battery is electrically connected to the output of the control circuit to store the electrical energy generated by the micro generator and to power the door lock. The gear set, through the coordinated action of the first gear, the intermediate transmission gear, and the second gear, increases the rotation speed obtained from the first gear and drives the micro generator to generate electricity.

2. The door switch power generation device according to claim 1, characterized in that, The rechargeable battery is located inside the door panel.

3. The door switch power generation device according to claim 2, characterized in that, The rechargeable battery installed inside the door panel serves as a backup battery for the door lock, providing power to it when the main battery of the door lock is de-energized or has insufficient power.

4. The door switch power generation device according to claim 1, characterized in that, The rechargeable battery is built into the door lock.

5. The door switch power generation device according to claim 1, characterized in that, It also includes a first rechargeable battery disposed in the door panel and a second rechargeable battery built into the door lock. The output terminal of the control circuit is connected to the first rechargeable battery; the first rechargeable battery is also electrically connected to the second rechargeable battery through a charging management branch.

6. The door switch power generation device according to claim 1, characterized in that, The gear set achieves a total speed-up transmission ratio of 35:1 to 40:1 through its internal first gear, intermediate transmission gear, and second gear, from the input of the first gear to the output of the second gear.

7. The door switch power generation device according to claim 1 or 6, characterized in that, The first gear is a crown gear or a bevel gear; if the first gear is a crown gear, then the intermediate transmission gear in the gear set that directly meshes with the first gear is a spur gear; if the first gear is a bevel gear, then the intermediate transmission gear in the gear set that directly meshes with the first gear is a bevel gear that is paired with it.

8. The door switch power generation device according to claim 1, characterized in that, The micro generator produces alternating current; the control circuit includes: The rectifier and filter module is electrically connected to the output terminal of the micro generator; The input terminal of the DC-DC voltage conversion module is electrically connected to the output terminal of the rectifier and filter module. The charging management module has its input terminal electrically connected to the output terminal of the DC-DC voltage conversion module, and its output terminal is used to connect to the rechargeable battery.

9. The door switch power generation device according to claim 8, characterized in that, The rectifier and filter module includes a bridge rectifier circuit and a filter capacitor.

10. The door switch power generation device according to claim 8, characterized in that, The DC-DC voltage conversion module includes a switching power supply integrated circuit and an inductor and at least one associated capacitor that work in conjunction with the switching power supply integrated circuit; and / or, the charging management module includes a dedicated charging management integrated circuit and at least one associated capacitor that works in conjunction with the dedicated charging management integrated circuit.

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