Alarm device for door opening detection

Abstract

The utility model discloses a kind of alarm devices for door switch detection, belong to door switch detection device technical field.The device includes Hall sensor component and permanent magnetic component, Hall sensor component and permanent magnetic component are respectively matched and set on door frame and door panel, and the position of both corresponds to each other, the device further includes switch door power generation mechanism, the switch door power generation mechanism includes the power generation assembly for generating electric energy, and the driving assembly for driving power generation assembly to generate electric energy, the power generation assembly and driving assembly are respectively set on door frame and door panel, so that the power generation assembly and driving assembly can cooperate with each other in the relative movement of door frame and door panel, the power generation assembly is electrically connected with Hall sensor component, and the electricity generated by the power generation assembly is supplied to Hall sensor component.The alarm device provided by the utility model has automatic power supply capability, without additional cabling connection external power supply, reduces use cost and wiring difficulty.

Description

Technical Field

[0001] This utility model relates to the technical field of door switch detection devices, and in particular to an alarm device for door switch detection. Background Technology

[0002] A door switch detection device is a sensor device used to monitor the opening and closing status of a door. Its core function is to detect changes in the physical position of the door and output an electrical signal to provide feedback on the door's status. Its working principle is usually based on mechanical contacts, magnetic induction, or photoelectric effect: when the door is closed, the contacts close or the magnetic field aligns, triggering the circuit to conduct; when the door is open, the contacts open or the magnetic field shifts, breaking the circuit.

[0003] When installing a door switch detection device, an independent power supply system is required, typically a safe DC 24V voltage. When the door is closed, the internal mechanical contacts of the device connect or the magnetic induction module aligns, forming a conductive circuit and sending a "door closed" signal to the control system; when the door is opened, the magnetic field shifts, the signal is interrupted, thus achieving detection.

[0004] The shortcomings of the existing technical solutions are as follows: In normally closed workshops such as chemical plants and electroplating plants, the installation of door switch detection devices faces wiring difficulties due to centralized cable routing. Because workshops need to prevent safety hazards such as cable insulation aging and leakage caused by corrosive gases or liquids, traditional wiring methods typically require cables to be run through conduits or centrally laid using high-protection-level cable trays. However, door switch detection devices need to be installed at multiple points in locations such as pass-through windows and isolation doors. Centralized wiring requires long-distance wiring and frequent branching, resulting in complex cable paths and increased construction costs. Furthermore, conduits are easily corroded in corrosive environments, affecting their service life. Utility Model Content

[0005] This invention provides an alarm device for door switch detection, which can solve the problem that existing door switch detection devices need to be installed at multiple points in locations such as pass-through windows and isolation doors, and centralized wiring requires long-distance lead-in and frequent branching, resulting in increased cable construction costs.

[0006] An alarm device for door opening / closing detection includes a Hall sensor component and a permanent magnet component, which are respectively mounted on a door frame and a door panel, with their positions corresponding to each other. The device also includes a door opening / closing power generation mechanism, which includes a power generation component for generating electrical energy and a drive component for driving the power generation component to generate electrical energy. The power generation component and the drive component are respectively mounted on the door frame and the door panel, so that the power generation component and the drive component can cooperate with each other during relative movement of the door frame and the door panel. The power generation component is electrically connected to the Hall sensor component, and the electricity generated by the power generation component is supplied to the Hall sensor component.

[0007] As a further embodiment of this utility model: the power generation component includes a micro generator, a drive wheel is fixedly installed at the output end of the micro generator, and an energy storage component is installed on one side of the micro generator; the drive component includes a connecting plate, and a slide rail that matches the drive wheel is fixedly installed on the connecting plate.

[0008] As a further embodiment of this utility model, the slide rail is integrally curved in an arc shape.

[0009] As a further embodiment of this utility model, the drive wheel is connected to the inner edge of the slide rail via a transmission connection.

[0010] As a further embodiment of this utility model, the slide rail is linearly arranged.

[0011] As a further embodiment of this utility model, the slide rail and the drive wheel are connected by gear meshing.

[0012] As a further embodiment of this utility model: the connecting plate is detachably connected to the door frame, and the micro generator is detachably connected to the door panel.

[0013] As a further embodiment of this utility model: the connecting plate and the door frame, and the micro generator and the door panel are all fixed by bolts.

[0014] As a further aspect of this utility model: the micro generator is an electromagnetic induction type micro generator.

[0015] As a further embodiment of this utility model: the connecting plate is detachably connected to the door panel, and the micro generator is detachably connected to the door frame.

[0016] The beneficial effects of this utility model are: 1. The alarm device for door opening and closing detection provided by this utility model has automatic power supply capability, eliminating the need for additional cable connections to an external power source, thus reducing operating costs and wiring complexity. The device incorporates a door opening and closing power generation mechanism, with its micro-generator preferably being electromagnetic induction type. During door opening and closing, the door frame and door panel move relative to each other, causing the wheel and slide rail to rotate, which in turn drives the internal coil of the micro-generator to cut magnetic field lines and generate electrical energy. Part of the generated electrical energy is directly supplied to the Hall sensor component to ensure real-time detection of the door panel position; the other part is stored in the energy storage component for backup. This eliminates dependence on an external power source, avoids long-distance wiring and frequent branching, and reduces cable installation costs.

[0017] 2. The alarm device of this utility model is versatile and can be adapted to two different types of doors, meeting the needs of diverse application scenarios. For revolving doors, such as those commonly found in laboratories and analytical rooms, the device features an arc-shaped curved slide rail, with the drive wheel connected to the inner edge of the rail. When the door frame and door panel rotate relative to each other, the drive wheel rolls along the inner edge of the slide rail, driving a micro-generator to generate electricity and detect the door's open / closed status. For horizontal sliding doors, such as pass-through windows and isolation doors, the slide rail is linearly arranged. When the door frame and door panel move in a straight line relative to each other, the drive wheel moves linearly along the slide rail, similarly driving the micro-generator to generate electricity and determine the door's open / closed status. This flexible design of the slide rail according to different door structures allows the device to be widely used in various locations. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of an alarm device for detecting door opening and closing provided by this utility model when the door panel is closed; Figure 2 A schematic diagram of the structure of an alarm device for detecting door opening and closing provided by this utility model when the door panel is opened; Figure 3 A schematic diagram of the first embodiment of an alarm device for door switch detection provided by this utility model; Figure 4 This is a schematic diagram of the second embodiment of an alarm device for door switch detection provided by this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Door frame; 2. Door panel; 3. Hall sensor component; 4. Permanent magnet component; 5. Door opening and closing power generation mechanism; 501. Drive component; 5011. Connecting plate; 5012. Slide rail; 502. Power generation component; 5021. Micro generator; 5022. Drive wheel. Detailed Implementation

[0020] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0021] like Figures 1 to 4As shown in the figure, an alarm device for door opening / closing detection provided by this utility model includes a Hall sensor component 3 and a permanent magnet component 4. The Hall sensor component 3 and the permanent magnet component 4 are respectively arranged in a positional cooperation manner on the door frame 1 and the door panel 2. Specifically, the Hall sensor component 3 can be combined with the door frame 1, and the permanent magnet component 4 can be combined with the door panel 2; or the opposite combination can be used, that is, the permanent magnet component 4 is combined with the door frame 1, and the Hall sensor component 3 is combined with the door panel 2. Regardless of the combination method, it must be ensured that the positions of the two are mutually corresponding, so that the Hall sensor component 3 can accurately sense the permanent magnet component 4, thereby facilitating the detection of the position of the door panel 2 and realizing the accurate determination of the door opening / closing status.

[0022] The device also includes a door-opening and closing power generation mechanism 5, which includes a power generation component 502 for generating electrical energy and a drive component 501 for driving the power generation component 502 to generate electrical energy. The power generation component 502 and the drive component 501 are respectively mounted on the door frame 1 and the door panel 2. This arrangement allows the power generation component 502 and the drive component 501 to cooperate with each other when the door frame 1 and the door panel 2 move relative to each other. Moreover, the power generation component 502 is electrically connected to the Hall sensor component 3, and the electrical energy generated by the power generation component 502 can supply the Hall sensor component 3, thereby achieving the effect of automatic power supply without the need for an external power source, reducing operating costs and wiring complexity.

[0023] The power generation component 502 includes a micro-generator 5021, preferably an electromagnetic induction micro-generator 5021, which has advantages such as high power generation efficiency and good stability. A drive wheel 5022 is fixedly installed at the output end of the micro-generator 5021. When the drive wheel 5022 rotates, it drives the coil inside the micro-generator 5021 to cut magnetic field lines, thereby generating electrical energy. An energy storage component (not shown in the figure) is installed at the bottom of the micro-generator 5021. The energy storage component is preferably a removable battery pack for easy replacement when the battery is damaged. However, after installing the battery pack, it is necessary to ensure that it is sealed to prevent environmental factors from damaging the battery and affecting the normal operation of the device.

[0024] The drive assembly 501 includes a connecting plate 5011, on which a slide rail 5012, matching the drive wheel 5022, is fixedly mounted. When the door frame 1 and the door panel 2 move relative to each other, the slide rail 5012 and the drive wheel 5022 also move relative to each other, causing them to rotate due to friction, thus generating electricity. This utilizes the mechanical energy generated during door opening and closing, converting it into electrical energy to power the Hall sensor component 3, achieving efficient energy utilization.

[0025] The drive wheel 5022 can also be replaced by other gear set structures. By using the gear ratio and the matching relationship, the number of rotations can be guaranteed, thereby ensuring the power generation effect. All of these fall within the protection scope of this patent.

[0026] In one alternative, to further improve the transmission effect and avoid slippage or insufficient movement, the slide rail 5012 and the drive wheel 5022 are connected by gear meshing. Gear meshing transmission has the advantages of accurate, smooth, and reliable transmission, ensuring that the drive wheel 5022 and the slide rail 5012 can efficiently and stably transmit power when the door frame 1 and the door panel 2 move relative to each other, thereby improving power generation efficiency.

[0027] In one specific embodiment, considering the different opening and closing methods of different types of doors, the slide rail 5012 is designed with an overall arc-shaped curve, such as... Figure 1 , Figure 2 and Figure 3 As shown, the drive wheel 5022 is connected to the inner edge of the slide rail 5012 via a transmission connection. This design is suitable for rotating doors, such as the door structures commonly found in laboratories and analytical rooms. When the door frame 1 and the door panel 2 move relative to each other, the drive wheel 5022 rolls along the inner edge of the slide rail 5012. During this process, the rotation of the drive wheel 5022 drives the micro-generator 5021 to generate electricity, thus achieving the power generation effect.

[0028] In another specific embodiment, for horizontal sliding doors, such as pass-through windows and isolation doors, the slide rail 5012 is linearly arranged. When the door frame 1 and the door panel 2 move relative to each other, the drive wheel 5022 will move linearly along the slide rail 5012, which can also drive the micro generator 5021 to generate electricity. This slide rail 5012, designed according to different door structures, improves the applicability and versatility of the device.

[0029] In addition, regarding installation, the connecting plate 5011 is fixed to the door frame 1, and the micro generator 5021 is fixed to the door panel 2 with bolts. Alternatively, the connecting plate 5011 can be fixed to the door panel 2 with bolts, and the micro generator 5021 can be fixed to the door frame 1 with bolts. This installation method is more flexible and can be adjusted according to the actual installation environment and needs, and all fall within the protection scope of this patent. Moreover, the bolt fixing method facilitates the later maintenance and replacement of the device. When a component fails, a new component can be easily disassembled and installed, reducing maintenance costs and time.

[0030] Working principle: When the door needs to be opened, the door panel 2 begins to rotate relative to the door frame 1. As the door panel 2 moves, the permanent magnet component 4 and the micro-generator 5021 fixed to it also move. The drive wheel 5022 at the output end of the micro-generator 5021 moves relative to the slide rail 5012 on the connecting plate 5011 on the door frame 1. This causes the drive wheel 5022 to rotate, which in turn drives the coil inside the micro-generator 5021 to cut magnetic field lines, generating electrical energy according to the principle of electromagnetic induction.

[0031] The electrical energy generated by the micro generator 5021 is partly supplied to the Hall sensor component 3, enabling it to work continuously and detect changes in the position of the door panel 2 in real time; the other part of the electrical energy is stored in the energy storage component for later use.

[0032] As the door panel 2 continues to rotate, the distance between the Hall sensor component 3 and the permanent magnet component 4 gradually increases, and the intensity of the magnetic field signal sensed by the Hall sensor component 3 gradually weakens. When the door is fully open, the Hall sensor component 3 may no longer be able to sense the signal from the permanent magnet component 4. At this time, the Hall sensor component 3 will transmit this signal change to the subsequent control circuit, and the control circuit will determine the door's state as open according to the preset program.

[0033] When the door needs to be closed, the door panel 2 begins to rotate in the opposite direction, moving closer to the door frame 1. Similarly, the permanent magnet component 4 and the micro generator 5021 fixed on the door panel 2 move with the door panel 2, driving the wheel 5022 to roll in the opposite direction along the slide rail 5012, driving the micro generator 5021 to continue generating electricity to power the Hall sensor component 3.

[0034] As the door panel 2 gradually approaches the door frame 1, the distance between the Hall sensor component 3 and the permanent magnet component 4 gradually decreases, and the intensity of the magnetic field signal sensed by the Hall sensor component 3 gradually increases. When the door is fully closed, the Hall sensor component 3 accurately senses the strong magnetic field signal of the permanent magnet component 4 again and transmits this signal to the control circuit, which determines that the door is in a closed state. If an abnormality occurs during the closing process, such as not being fully closed, and the intensity of the magnetic field signal sensed by the Hall sensor component 3 does not reach the preset closing state threshold, the control circuit can trigger the alarm device to issue an alarm signal, reminding relevant personnel that the door is not properly closed.

[0035] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. An alarm device for detecting door opening and closing, comprising a Hall sensor component (3) and a permanent magnet component (4), wherein the Hall sensor component (3) and the permanent magnet component (4) are respectively disposed on a door frame (1) and a door panel (2), and their positions correspond to each other, characterized in that: The device also includes a door opening and closing power generation mechanism (5), which includes a power generation component (502) for generating electrical energy and a drive component (501) for driving the power generation component (502) to generate electrical energy. The power generation component (502) and the drive component (501) are respectively disposed on the door frame (1) and the door panel (2), so that the power generation component (502) and the drive component (501) can cooperate with each other in the relative movement of the door frame (1) and the door panel (2). The power generation component (502) is electrically connected to the Hall sensor component (3), and the electricity generated by the power generation component (502) is supplied to the Hall sensor component (3).

2. A warning device for door switch detection as defined in claim 1, wherein The power generation component (502) includes a micro generator (5021), a drive wheel (5022) is fixedly installed at the output end of the micro generator (5021), and an energy storage component is installed on one side of the micro generator (5021); the drive component (501) includes a connecting plate (5011), and a slide rail (5012) that matches the drive wheel (5022) is fixedly installed on the connecting plate (5011).

3. A warning device for door switch detection as defined in claim 2, wherein The slide rail (5012) is curved in an arc shape.

4. A warning device for door switch detection as defined in claim 3, wherein The drive wheel (5022) is connected to the inner edge of the slide rail (5012) via a transmission connection.

5. A warning device for door switch detection as defined in claim 2, wherein The slide rail (5012) is linearly set.

6. A warning device for door opening detection as claimed in claim 4 or 5, characterized in that The slide rail (5012) and the drive wheel (5022) are connected by gear meshing.

7. A warning device for door switch detection as defined in claim 6, wherein The connecting plate (5011) is detachably connected to the door frame (1), and the micro generator (5021) is detachably connected to the door panel (2).

8. A warning device for door switch detection as defined in claim 7, wherein The connecting plate (5011) is fixed to the door frame (1), and the micro generator (5021) is fixed to the door panel (2) by bolts.

9. A warning device for door switch detection as defined in claim 8, wherein, The micro generator (5021) is an electromagnetic induction micro generator.

10. A warning device for door switch detection as defined in claim 6, wherein, The connecting plate (5011) is detachably connected to the door panel (2), and the micro generator (5021) is detachably connected to the door frame (1).

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