Self-generating coil with small volume
By designing a small-volume self-generating coil that uses fixed magnetic steel to reset the movable magnetic steel in the self-generating doorbell system, the problem of larger coil volume in the prior art is solved, and a smaller and lighter coil structure is realized. Expanded application scope.
Patent Information
- Application Number
- CN202421216245.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The self-generating coils in the existing self-generating doorbell systems are large in size, resulting in a larger design of the overall doorbell structure and are not light and beautiful enough.
A small-volume self-generating coil is designed to install fixed magnetic steel outside a side plate of the mounting frame, and the reset of the movable magnetic steel is achieved by using the principle of repulsive and attracting the same level, thereby avoiding the pre-spring of the spring. Request for installation space.
The coil is reduced in size, the structure is more delicate and light, and the application range is wider, while avoiding excessive occupation of the internal space of the doorbell.
Smart Images
Figure CN222509073U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coils, in particular to a small-volume self-generating coil. Background Art
[0002] In a self-generating doorbell system, the self-generating coil may be a key component. When an external force acts on the doorbell, it drives a mechanical device, which in turn drives the self-generating coil to move in a magnetic field. According to the principle of electromagnetic induction, when the coil moves in a magnetic field, an induced current is generated inside it. This induced current is then used to drive the circuit and mechanical structure of the doorbell, thereby making a sound.
[0003] In the prior art, the structure of the self-generating doorbell system is mainly composed of a coil and a magnet located at one end of the coil, and a resettable driving component is arranged on the magnet. The driving component is often composed of a button and a spring assembly connected between the button and the magnet. The magnet is driven to move by pushing the button. After releasing the button, the magnet is reset to its initial state under the action of the elastic force of the spring. In this process, the magnetic pole of the magnet located at one end of the coil undergoes two rapid changes, thereby realizing the self-generating process of the coil.
[0004] However, if the spring assembly is used as the reset drive structure of the button, a certain installation space needs to be reserved for the spring. Therefore, the self-generating coil in the existing doorbell often has a certain volume, which has certain requirements on the internal space of the doorbell, so that the overall structure of the doorbell needs to be designed to be larger, which is not light and beautiful enough. Utility Model Content
[0005] The purpose of the utility model is to provide a small-volume self-generating coil to solve the following technical problems:
[0006] How to reduce the size of the self-generating coil in the doorbell?
[0007] The purpose of the utility model can be achieved through the following technical solutions:
[0008] A small-volume self-generating coil comprises a mounting frame and a coil, wherein one end of the coil is mounted on the mounting frame, and the other end of the coil is provided with a movable active magnetic steel, and in a stationary state, one end of the magnetic pole of the movable magnetic steel corresponds to the coil; a fixed magnetic steel is fixedly provided on one side of the mounting frame, and the other end of the magnetic pole of the movable magnetic steel corresponds to one end of the fixed magnetic steel.
[0009] As a further solution of the utility model: the mounting frame is a U-shaped structure, a limiting sleeve is installed on the inner side of the bottom plate, and the coil is inserted into the limiting sleeve.
[0010] As a further solution of the utility model: the coil is separately provided with a mounting frame at one end away from the inner side of the mounting frame bottom plate, and the movable magnetic steel is installed in the mounting frame; a connecting piece is also installed on the movable magnetic steel, and one end of the connecting piece is rotatably installed at the bottom of the mounting frame.
[0011] As a further solution of the utility model: a mounting plate is installed on the outer side of one of the side plates of the mounting frame, the fixed magnetic steel is installed on the mounting plate, and a magnetic phenomenon of like magnetic poles repelling each other or opposite magnetic poles attracting each other is generated between the fixed magnetic steel and the movable magnetic steel.
[0012] As a further solution of the utility model: the magnetic poles of the ends of the fixed magnetic steel and the movable magnetic steel that are close to each other are opposite.
[0013] As a further solution of the utility model: the installation frame is installed at one end away from the coil and at one side close to the fixed magnetic steel.
[0014] As a further solution of the utility model: iron sheets are provided at both ends of the movable magnetic steel close to the two side plates of the mounting frame.
[0015] Beneficial effects of the utility model:
[0016] When the coil is used for self-generating electricity, the mounting frame is pushed to move toward the side away from the fixed magnet, so that the iron sheet in the active magnet away from the fixed magnet moves to the side plate opposite to the mounting frame, and then the hand is immediately released. Since the magnetic poles of the fixed magnet and the active magnet are opposite, the active magnet moves in the opposite direction to the initial position under the attraction of the magnetic poles of the fixed magnet, and self-generating electricity is achieved in this process. Compared with the structure in the prior art that realizes the reset of the active magnet by a spring assembly, the coil only needs to install a fixed magnet outside a side plate of the mounting frame to reset the active magnet by the principle of the magnetic phenomenon that the same pole repels each other and the opposite pole attracts each other. This structure does not need to reserve a position for the installation of the spring, so the overall volume of the coil can be greatly reduced, making it more compact and lightweight, and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] Figure 1 This is a schematic structural diagram of a small-volume self-generating coil in one embodiment of the utility model;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure of a small to medium-sized self-generating coil from another angle;
[0020] Figure 3 yes Figure 1 Side view of a small to medium-sized self-generating coil;
[0021] Figure 4 yes Figure 3 Cross-sectional view of small and medium-sized self-generating coils;
[0022] Figure 5 yes Figure 1 Exploded diagram of small and medium-sized self-generating coils.
[0023] In the figure: 100, mounting frame; 200, coil; 300, limit sleeve; 400, mounting plate; 500, fixed magnet; 600, mounting frame; 601, push handle; 700, iron sheet; 800, movable magnet; 900, connecting piece. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] See also Figure 1-2 The utility model is a small-volume self-generating coil, which is composed of a mounting frame 100, a coil 200, a limiting sleeve 300, a mounting plate 400, a fixed magnetic steel 500, a mounting frame 600, an iron sheet 700, a movable magnetic steel 800 and a connecting piece 900; wherein, the mounting frame 100 is a U-shaped structure, which is composed of a bottom plate and side plates symmetrically vertically connected to both ends of the bottom plate, the limiting sleeve 300 is fixedly installed on one side of the bottom plate between the two side plates, one end of the coil 200 is inserted into the through hole at the center of the limiting sleeve 300 and is connected to the bottom plate in the mounting frame 100, and the limiting sleeve 300 can limit the coil 200.
[0026] See also Figure 3-4The mounting frame 600 is rectangular as a whole, and the active magnetic steel 800 is fixedly installed in the frame at the center of the mounting frame 600. Two iron sheets 700 are provided, and the two iron sheets 700 are fixedly installed on both sides of the mounting frame 600, respectively, to limit the active magnetic steel 800, and will not shield the magnetism of the active magnetic steel 800; the three frame edges in the mounting frame 600 are all provided with arc-shaped rails connected as one piece on the outside; the connecting piece 900 is a rectangular rod formed by enclosing, and its rod part is cylindrical, and the mounting frame 600 is fixedly clamped at one end of the inner side of the connecting piece 900 through its own arc-shaped rail; an arc groove is provided at the center of the bottom of the mounting frame 100, which The direction of the arc groove is perpendicular to the direction of the line between the center points of the two side plates, and the other end of the inner side of the connecting piece 900 is movably embedded in the arc groove and can rotate around the axis of the arc groove; the mounting frame 600 is located between the upper halves of the two side plates of the mounting frame 100, and one end of the movable magnetic steel 800 in the mounting frame 600 corresponds to the end of the coil 200 away from the bottom plate of the mounting frame 100 in a non-contact manner; when the mounting frame 600 is rotated and moved by the connecting piece 900, the iron sheets 700 on both sides of the mounting frame 600 will be limited by the two side plates in the mounting frame 100, so that the mounting frame 600 can only move between the two side plates.
[0027] See also Figure 5 The mounting plate 400 is mounted on the outer side of one of the side plates in the mounting frame 100. A mounting groove is provided at the upper end of the mounting plate 400. The fixed magnetic steel 500 is fixedly mounted in the mounting groove. The fixed magnetic steel 500 and the movable magnetic steel 800 are of the same size, and the straight-line distance between the fixed magnetic steel 500 and the movable magnetic steel 800 and the bottom plate of the mounting frame 100 is the same. At the same time, the magnetic poles of the ends of the fixed magnetic steel 500 and the movable magnetic steel 800 that are close to each other are opposite. Therefore, under normal conditions, the fixed magnetic steel 500 and the movable magnetic steel 800 are in a state of opposite attraction. Then the movable magnetic steel 800 is fixed. Under the attraction of the fixed magnet 500, the iron sheet 700 of the movable magnet 800 close to the fixed magnet 500 is attached to the inner side of the side panel of the mounting frame 100 on which the fixed magnet 500 is mounted; 601 is installed at the upper end of the side of the mounting frame 600 close to the fixed magnet 500, which is used to push the mounting frame 600 to move toward the side away from the fixed magnet 500, so that the iron sheet 700 of the movable magnet 800 away from the fixed magnet 500 moves to the side panel opposite to the mounting frame 100. If you let go at this time, the movable magnet 800 will move in the opposite direction to the normal position under the attraction of the magnetic pole of the fixed magnet 500.
[0028] It should be noted that the inner sides of the two side plates in the mounting frame 100 are arranged to be sloped, so that the two iron sheets 700 can fit more closely when they move to the surface thereof.
[0029] The working principle of this utility model:
[0030] When the coil is used for self-generation, the mounting frame 600 is pushed to move to the side away from the fixed magnetic steel 500 by 601, so that the iron sheet 700 of the movable magnetic steel 800 away from the fixed magnetic steel 500 moves to the side plate opposite to the mounting frame 100, and then the hand is immediately released. Since the magnetic poles of the fixed magnetic steel 500 and the movable magnetic steel 800 are opposite, the movable magnetic steel 800 moves in the opposite direction to the initial position under the attraction of the magnetic poles of the fixed magnetic steel 500. In this process, the magnetic pole of the movable magnetic steel 800 close to the coil 200 undergoes two rapid changes, that is, from N level to S level and then from N level to S level. The coil 200 and the movable magnet 800 can be used to reset the movable magnet 800 by installing a fixed magnet 500 outside a side plate of the mounting frame 100, or the coil 200 can be converted from the S class to the N class and then to the S class. The coil 200 and the movable magnet 800 can be used to reset the movable magnet 800 by installing a fixed magnet 500 outside a side plate of the mounting frame 100. The structure does not need to reserve a position for the installation of the spring, so the overall volume of the coil can be greatly reduced, making it more compact and lightweight, and having a wider range of applications.
[0031] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A small-volume self-generating coil, comprising a mounting frame (100) and a coil (200), wherein one end of the coil (200) is mounted on the mounting frame (100), and the other end of the coil (200) is provided with a movable active magnetic steel (800), and in a stationary state, one end of the magnetic pole of the active magnetic steel (800) corresponds to the coil (200); characterized in that: A fixed magnetic steel (500) is fixedly arranged on one side of the mounting frame (100), and the other end of the magnetic pole of the movable magnetic steel (800) corresponds to one end of the fixed magnetic steel (500).
2. The small-volume self-generating coil according to claim 1, characterized in that: The mounting frame (100) is a U-shaped structure, a limiting sleeve (300) is installed on the inner side of the bottom plate, and the coil (200) is inserted into the limiting sleeve (300).
3. The small-volume self-generating coil according to claim 1, characterized in that: The coil (200) is provided with a mounting frame (600) at one end away from the inner side of the bottom plate of the mounting frame (100), and the movable magnetic steel (800) is installed in the mounting frame (600); a connecting piece (900) is also installed on the movable magnetic steel (800), and one end of the connecting piece (900) is rotatably installed on the bottom of the mounting frame (100).
4. The small-volume self-generating coil according to claim 3, characterized in that: A mounting plate (400) is mounted on the outer side of one of the side plates of the mounting frame (100), the fixed magnetic steel (500) is mounted on the mounting plate (400), and a magnetic phenomenon of like magnetic poles repelling each other or opposite magnetic poles attracting each other is generated between the fixed magnetic steel (500) and the movable magnetic steel (800).
5. The small-volume self-generating coil according to claim 4, characterized in that: The fixed magnetic steel (500) and the movable magnetic steel (800) have opposite magnetic poles at the ends close to each other.
6. The small-volume self-generating coil according to claim 5, characterized in that: The installation frame (600) is provided with (601) on one end away from the coil (200) and on one side close to the fixed magnetic steel (500).
7. The small-volume self-generating coil according to claim 6, characterized in that: Iron sheets (700) are arranged at both ends of the movable magnetic steel (800) close to the two side plates of the mounting frame (100).