阅读说明：本技术 一种侧置双磁铁拨动式自发电装置及无线开关 (Side-arranged double-magnet toggle type self-generating device and wireless switch ) 是由 李春光 于 2021-02-04 设计创作，主要内容包括：本发明涉及开关技术领域,具体涉及一种侧置双磁铁拨动式自发电装置及无线开关,所述自发电装置包括线圈支架、连接磁板和软磁板,线圈支架上绕设有线圈,线圈支架内贯穿设置连接磁板,连接磁板的第一端连接有第一导磁板,连接磁板的第二端连接有第二导磁板,第一导磁板朝向所述第二导磁板弯折,形成有第一接触口,第二导磁板朝向所述第一导磁板弯折,形成有第二接触口,软磁板在初始状态下和按压后分别形成第一闭合磁路和第二闭合磁路,在第一闭合磁路中经过连接磁板的磁感线方向与第二闭合磁路中经过连接磁板的磁感线方向相反。本发明的自发电装置结构简单、占用空间小,使得应用其制作的开关尺寸小且结构紧凑。(The invention relates to the technical field of switches, in particular to a side-mounted double-magnet toggle type self-generating device and a wireless switch. The self-generating device disclosed by the invention is simple in structure and small in occupied space, so that the switch manufactured by the self-generating device is small in size and compact in structure.)

1. The utility model provides a formula self-generating device is dialled to side double magnet which characterized in that includes:

the coil support (11), the coil (12) is wound on the coil support (11), and a connecting magnetic plate (13) penetrates through the coil support (11);

the magnetic switch comprises a connecting magnetic plate (13), wherein a first end of the connecting magnetic plate (13) is connected with a first magnetic conduction plate (14), and a second end of the connecting magnetic plate (13) is connected with a second magnetic conduction plate (15);

the magnetic connector comprises a first magnetic conducting plate (14), wherein the first magnetic conducting plate (14) is bent towards the second magnetic conducting plate (15) to form a first bent part (141), the upper surface and the lower surface of the first bent part (141) are respectively bent along the width direction of the connecting magnetic plate (13) to form a first upper bent part (142) and a first lower bent part (143), and a first contact port (144) is formed between the first upper bent part (142) and the first lower bent part (143);

a second magnetic conductive plate (15), wherein the second magnetic conductive plate (15) is bent towards the first magnetic conductive plate (14) to form a second bent portion (151), the upper and lower surfaces of the second bent portion (151) are bent along the width direction of the connecting magnetic plate (13) respectively, and the bending direction of the upper and lower surfaces of the second bent portion (141) is the same as that of the first bent portion (152), so as to form a second upper bent portion (152) and a second lower bent portion (153), a first permanent magnet (154) is arranged on the inner side of the second upper bent portion (152), a second permanent magnet (155) is arranged on the inner side of the second lower bent portion (153), and a second contact opening (156) is formed between the first permanent magnet (154) and the second permanent magnet (155);

the soft magnetic plate (17) is configured to be movably mounted, in an initial state, the soft magnetic plate (17) is in contact with a first contact part of the first contact port (144) and is in contact with a first contact part of the second contact port (156) at the same time, a first closed magnetic circuit is formed, after the soft magnetic plate (17) moves, the soft magnetic plate (17) is in contact with a second contact part of the first contact port (144) and is in contact with a second contact part of the second contact port (156) at the same time, a second closed magnetic circuit is formed, and the direction of a magnetic induction line passing through the connecting magnetic plate (13) in the first closed magnetic circuit is opposite to the direction of a magnetic induction line passing through the connecting magnetic plate (13) in the second closed magnetic circuit.

2. The self-generating device according to claim 1, wherein the soft magnetic plate (17) comprises a first magnetic conductive part (171) and a second magnetic conductive part (172), the first magnetic conductive part (171) is in contact with the first contact port (144), the second magnetic conductive part (172) is in contact with the second contact port (156), and the first magnetic conductive part (171) and the second magnetic conductive part (172) are located on the same side of the soft magnetic plate (17).

3. The self-generating device according to claim 2, further comprising a first limiting member (181) and a second limiting member (182), wherein the first limiting member (181) and the second limiting member (182) are respectively disposed on two sides of the second magnetic conductive portion (172).

4. The self-generating device according to claim 1, further comprising a fixed plate (16), wherein an elastic component is disposed on the fixed plate (16), and in an initial state, the soft magnetic plate (17) is simultaneously contacted with the first contact opening (144) and the second contact opening (156) under the action of the elastic component to form a first closed magnetic circuit.

5. The self-generating device according to claim 4, wherein the elastic component comprises a fixed shaft (163) and a torsion spring (164) which are arranged at the bottom of the soft magnetic plate (17), the fixed shaft (163) is arranged to be fixedly installed, the torsion spring (164) is sleeved on the fixed shaft (163), a rotating shaft (175) is arranged on the soft magnetic plate (17), the soft magnetic plate (17) can rotate around the rotating shaft (175), and in an initial state, the torsion spring (164) tightly pushes the soft magnetic plate (17) so that the soft magnetic plate (17) is simultaneously contacted with the first contact opening (144) and the second contact opening (156).

6. Self-generating device according to claim 4, characterized in that said elastic assembly comprises a spring (176), said spring (176) being arranged between said soft magnetic plate (17) and said fixed plate (16).

7. The self-generating device according to claim 6, further comprising a plurality of limiting plates (177), wherein the plurality of limiting plates (177) are respectively arranged around the soft magnetic plate (17) to limit displacement of the soft magnetic plate (17) in the front-rear and left-right directions.

8. A wireless switch, characterized in that it comprises a base (2), inside said base (2) there being arranged a self-generating device according to any one of claims 1-7.

9. The wireless switch according to claim 8, further comprising an upper cover (3) and an elastic member (4), wherein one end of the elastic member (4) is fixedly connected with the soft magnetic plate (17), and the other end of the elastic member (4) is connected with the upper cover (3).

10. The wireless switch according to claim 9, wherein a plurality of limiting hooks are arranged on the upper cover (3), a plurality of limiting grooves are arranged on the base (2), and the limiting hooks and the limiting grooves are matched to limit the upper cover (3) and the base (2) to prevent the upper cover (3) from being separated from the base (2).

Technical Field

The invention relates to the technical field of switches, in particular to a side double-magnet toggle type self-generating device and a wireless switch.

Background

With the continuous development of electronic technology, wireless technology plays an increasingly important role in intellectualization, wireless switches for controlling household appliances by using wireless technology appear at present, the existing wireless switches can be divided into battery type wireless switches and self-generating type wireless switches, and the use of the wireless switches is greatly convenient for the daily life of people.

However, the existing wireless switch still has some problems, wherein a rechargeable battery needs to be installed on the battery type wireless switch, the battery needs to be taken out frequently for charging because the switch is in a wireless connection state, and a user forgets to charge frequently, so that the power failure is judged by mistake when the wireless switch is used, and the wireless switch is inconvenient to use; and the current from generating electricity formula wireless switch from power generation facility occupation space big, be not convenient for integrate the processing.

Disclosure of Invention

The invention provides a self-generating device and a wireless switch, aiming at solving the technical problems that the self-generating device in the prior art occupies large space and is inconvenient for integrated processing, and the self-generating device and the wireless switch are simple in structure, small in occupied space and convenient for integrated processing.

The technical scheme of the invention is as follows:

a side-mounted double-magnet stirring type self-generating device comprises:

the coil support is wound with a coil, and a connecting magnetic plate penetrates through the coil support;

the first end of the connecting magnetic plate is connected with a first magnetic conduction plate, and the second end of the connecting magnetic plate is connected with a second magnetic conduction plate;

the first magnetic conduction plate is bent towards the second magnetic conduction plate to form a first bent part, the upper surface and the lower surface of the first bent part are respectively bent along the width direction of the connecting magnetic plate to form a first upper bent part and a first lower bent part, and a first contact port is formed between the first upper bent part and the first lower bent part;

the second magnetic conduction plate is bent towards the first magnetic conduction plate to form a second bent part, the upper surface and the lower surface of the second bent part are bent along the width direction of the connecting magnetic plate respectively and are in the same bending direction as the upper surface and the lower surface of the first bent part to form a second upper bent part and a second lower bent part, a first permanent magnet is arranged on the inner side of the second upper bent part, a second permanent magnet is arranged on the inner side of the second lower bent part, and a second contact port is formed between the first permanent magnet and the second permanent magnet;

the soft magnetic plate is configured to be movably installed, in an initial state, the soft magnetic plate is in contact with a first contact part of the first contact port and is simultaneously in contact with a first contact part of the second contact port to form a first closed magnetic circuit, after the soft magnetic plate moves, the soft magnetic plate is in contact with a second contact part of the first contact port and is simultaneously in contact with a second contact part of the second contact port to form a second closed magnetic circuit, and the direction of a magnetic induction line passing through the connecting magnetic plate in the first closed magnetic circuit is opposite to the direction of a magnetic induction line passing through the connecting magnetic plate in the second closed magnetic circuit.

Furthermore, the soft magnetic plate comprises a first magnetic conduction part and a second magnetic conduction part, the first magnetic conduction part is in contact with the first contact port, the second magnetic conduction part is in contact with the second contact port, and the first magnetic conduction part and the second magnetic conduction part are located on the same side of the soft magnetic plate.

Furthermore, the self-generating device further includes a first limiting member and a second limiting member, and the first limiting member and the second limiting member are respectively disposed on two sides of the second magnetic conductive portion.

Furthermore, the self-generating device further comprises a fixed plate, an elastic component is arranged on the fixed plate, and in an initial state, the soft magnetic plate is simultaneously contacted with the first contact port and the second contact port under the action of the elastic component to form a first closed magnetic circuit.

Optionally, the elastic component comprises a fixing shaft and a torsion spring, the fixing shaft is arranged at the bottom of the soft magnetic plate and is fixedly installed, the torsion spring is sleeved on the fixing shaft, a rotating shaft and the soft magnetic plate can rotate around the rotating shaft are arranged on the soft magnetic plate, and in an initial state, the torsion spring tightly pushes the soft magnetic plate so that the soft magnetic plate is simultaneously contacted with the first contact opening and the second contact opening.

Optionally, the resilient assembly comprises a spring, the spring being arranged between the soft magnetic plate and the fixed plate.

Further, the self-power-generation device further comprises a plurality of limiting plates, wherein the plurality of limiting plates are respectively arranged on the periphery of the soft magnetic plate and limit displacement of the soft magnetic plate in the front-back left-right direction.

In another aspect of the invention, there is provided a wireless switch comprising a base, wherein the self-generating device as described in any one of the above is disposed in the base.

Furthermore, the wireless switch further comprises an upper cover and an elastic piece, one end of the elastic piece is fixedly connected with the soft magnetic plate, and the other end of the elastic piece is connected with the upper cover.

Further, the upper cover is provided with a plurality of limiting hooks, the base is provided with a plurality of limiting grooves, and the limiting hooks and the limiting grooves are matched and limited to the upper cover and the base to prevent the upper cover from being separated from the base.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:

(1) according to the self-generating device, the first magnetic conduction plate and the second magnetic conduction plate are bent inwards, the first permanent magnet, the second permanent magnet and the soft magnetic plate are arranged on the side of the coil support, the size of the whole device in the length direction of the coil support is reduced, integration treatment is facilitated, and the size of the whole device in the width direction of the coil support can be further reduced by enabling the openings of the first contact port and the second contact port to face the side. Meanwhile, the self-generating device of the embodiment can fully utilize the space at the side of the coil support in the switch, so that the switch is small in overall size and compact in structure.

(2) According to the self-generating device, the soft magnetic plate is arranged on the side of the coil support, the space on the side of the coil support is large, the soft magnetic plate is not arranged in the coil support and cannot be shielded by the coil support, the soft magnetic plate can realize the pressing type deflection motion at two ends of the middle fulcrum and can also realize the middle pressing type elastic contact motion, so that the self-generating device can be applied to switches in various pressing modes, and the internal structure of the switch is compact.

Drawings

Fig. 1 is an exploded view of a structure of a self-power generation device in the prior art;

FIG. 2 is a schematic cross-sectional view of a prior art self-generating device;

FIG. 3 is a schematic structural diagram of a self-generating device (without a soft magnetic plate) according to a first embodiment;

FIG. 4 is an exploded view of the structure of a self-generating device (without a soft magnetic plate) according to the first embodiment;

fig. 5 is a schematic structural view of a first magnetic conductive plate according to the first embodiment;

fig. 6 is a schematic structural view of a second magnetic conductive plate according to the first embodiment;

FIG. 7 is a schematic structural diagram of a self-power-generation device according to a first embodiment;

FIG. 8 is an exploded view of the structure of a self-power-generating device according to the first embodiment;

fig. 9 is a schematic overall structure diagram of a wireless switch according to a second embodiment;

fig. 10 is an exploded view of the structure of the wireless switch according to the second embodiment;

fig. 11 is a schematic view of the internal structure of the upper cover according to the second embodiment;

fig. 12 is a sectional view of a wireless switch according to the second embodiment;

FIG. 13 is a schematic structural view of a self-power-generating device according to a third embodiment;

FIG. 14 is a schematic view showing the position of a spring according to the third embodiment;

fig. 15 is an exploded view of the wireless switch according to the third embodiment.

Wherein the content of the first and second substances,

the coil support 11 ', the coil 12', the first permanent magnet 154 ', the second permanent magnet 155', the soft magnetic plate 17 ', and the flux guide 19';

the coil comprises a coil support 11, a coil 12, a connecting magnetic plate 13, a first magnetic conductive plate 14, a first bent part 141, a first upper bent part 142, a first lower bent part 143, a first contact port 144, a second magnetic conductive plate 15, a second bent part 151, a second upper bent part 152, a second lower bent part 153, a first permanent magnet 154, a second permanent magnet 155, a second contact port 156, a fixed plate 16, a first fixed part 161, a second fixed part 162, a fixed shaft 163, a torsion spring 164, a soft magnetic plate 17, a first magnetic conductive part 171, a second magnetic conductive part 172, a buffer 173, a rotating frame 174, a rotating shaft 175, a spring 176, a limit plate 177, a limit sleeve 178, a first limit part 181 and a second limit part 182;

the base 2, a first limiting groove 21 and a second limiting groove 22;

the upper cover 3, a first limit hook 31, a second limit hook 32 and a positioning rod 33;

an elastic member 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The first embodiment is as follows:

as shown in fig. 1-2, the self-generating device in the prior art includes a coil support 11 ', a coil 12 ', a soft magnetic plate 17 ', a flux guide 19 ', a first permanent magnet 154 ' and a second permanent magnet 155 ', the coil support 11 ' is wound with the coil 12 ', the soft magnetic plate 17 ' is rotatably installed in the coil support 11 ', the upper and lower sides of one end of the coil support 11 ' are respectively provided with the first permanent magnet 154 ' and the second permanent magnet 155 ' fixed to the flux guide 19 ', and in an initial state, as shown in fig. 2, the soft magnetic plate 17 ' is simultaneously contacted with the second permanent magnet 155 ' and the flux guide 19 ' to form a first closed magnetic circuit formed by the second permanent magnet 155 ' -the soft magnetic plate 17 ' -the flux guide 19 ' -the second permanent magnet 155 ', and after the right end of the soft magnetic plate 17 ' is pressed, the soft magnetic plate 17 ' is simultaneously contacted with the first permanent magnet 154 ' and the flux guide 19 ', a second closed magnetic circuit is formed by the first permanent magnet 154 '-the magnetic frame 19' -the soft magnetic plate 17 '-the first permanent magnet 154', and the direction of the magnetic induction line passing through the soft magnetic plate 17 'in the first closed magnetic circuit is opposite to the direction of the magnetic induction line passing through the soft magnetic plate 17' in the second closed magnetic circuit. This induces a current in the coil 12' which can be used to drive the rf circuit board for wireless switch control. However, in the self-generating device, the first permanent magnet 154 'and the second permanent magnet 155' are disposed at one end of the coil support 11 ', so that the length of the whole coil support 11' is increased, a large space in the length direction is occupied, and the overall size of the manufactured switch is large; and the application of the switch to a square switch or a round switch can cause the waste of the residual space inside the switch; in addition, this structure can only perform the pressing operation at both ends of the soft magnetic plate 17', and cannot be applied to a middle pressing type button switch.

As shown in fig. 3-6, the side-mounted dual-magnet toggle self-generating device of the present embodiment includes a coil bracket 11, a coil 12, a connecting magnetic plate 13, a first magnetic conductive plate 14, and a second magnetic conductive plate 15, the coil 12 is wound on the coil bracket 11, the connecting magnetic plate 13 is disposed in the coil bracket 11 in a penetrating manner, a first end of the connecting magnetic plate 13 is connected to the first magnetic conductive plate 14, and a second end of the connecting magnetic plate 13 is connected to the second magnetic conductive plate 15, where the connection manner is not limited as long as the connecting magnetic plate 13 is in contact with the first magnetic conductive plate 14 and the second magnetic conductive plate 15 to be magnetically conductive. Wherein, the first magnetic conductive plate 14 is bent toward the second magnetic conductive plate 15 by 90 degrees to form a first bent portion 141, the upper and lower surfaces of the first bent portion 141 are respectively bent along the width direction of the connecting magnetic plate 13 to form a first upper bent portion 142 and a first lower bent portion 143, and a first contact opening 144 is formed between the first upper bent portion 142 and the first lower bent portion 143; the second magnetic conductive plate 15 is bent by 90 degrees toward the first magnetic conductive plate 14 to form a second bent portion 151, the upper and lower surfaces of the second bent portion 151 are bent in the width direction of the connecting magnetic plate 13, and the bending direction of the upper and lower surfaces of the second bent portion 151 is the same as that of the first bent portion 141 to form a second upper bent portion 152 and a second lower bent portion 153, the inner side of the second upper bent portion 152 is configured with a first permanent magnet 154, the inner side of the second lower bent portion 153 is configured with a second permanent magnet 155, and a second contact opening 156 is formed between the first permanent magnet 154 and the second permanent magnet 155, so that the first permanent magnet 154 and the second permanent magnet 155 are both configured on the side of the coil support 11, and the openings of the first contact opening 144 and the second contact opening 156 are both facing the side.

Further, a closed magnetic circuit is formed by the soft magnetic plate 17 contacting the first contact port 144 and the second contact port 156, respectively, and the soft magnetic plate 17 is configured to be movably installed and can perform a spring-touch motion or a rotation motion. Specifically, in the initial state, the soft magnetic plate 17 contacts with the first contact portion of the first contact port 144 and simultaneously contacts with the first contact portion of the second contact port 156 to form a first closed magnetic circuit, after the soft magnetic plate 17 moves, the soft magnetic plate 17 contacts with the second contact portion of the first contact port 144 and simultaneously contacts with the second contact portion of the second contact port 156 to form a second closed magnetic circuit, and by setting the magnetic pole directions of the first permanent magnet 154 and the second permanent magnet 155, the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the first closed magnetic circuit is opposite to the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the second closed magnetic circuit, so that a current is induced in the coil 12 to supply power to the radio frequency circuit board.

In this way, the self-generating device of the present embodiment is configured such that the first and second magnetic conductive plates 14 and 15 are bent inward, the first and second permanent magnets 154 and 155 and the soft magnetic plate 17 are disposed on the side of the coil support 11, so that the size of the entire device in the longitudinal direction of the coil support 11 is reduced, and the size of the entire device in the width direction of the coil support 11 can be further reduced by orienting the openings of the first and second contact openings 144 and 156 to the side. The self-generating device of the embodiment can fully utilize the space at the side of the coil support 11 in the switch, so that the switch is small in overall size and compact in structure. In addition, because the soft magnetic plate 17 is arranged at the side of the coil support 11, the space at the side of the coil support 11 is large, and the soft magnetic frame is not arranged at the inner side of the coil support 11 and can not be shielded by the coil support 11, the soft magnetic plate 17 can realize the deflection motion of the middle fulcrum two-end pressing type and can also realize the elastic contact motion of the middle pressing type, so that the self-generating device of the embodiment can be applied to switches in various pressing forms.

Further, as shown in fig. 7 to 8, the soft magnetic plate 17 of the present embodiment includes a first magnetic conductive part 171 and a second magnetic conductive part 172, the first magnetic conductive part 171 extends into the first contact opening 144 to contact with the first contact opening 144, the second magnetic conductive part 172 extends into the second contact opening 156 to contact with the second contact opening 156, and the first magnetic conductive part 171 and the second magnetic conductive part 172 are located on the same side of the soft magnetic plate 17.

Further, the self-generating device of the embodiment further includes a fixing plate 16, an elastic component is disposed on the fixing plate 16, and in an initial state, the soft magnetic plate 17 is simultaneously contacted with the first contact opening 144 and the second contact opening 156 under the action of the elastic component to form a first closed magnetic circuit. Specifically, as shown in fig. 7-8, the fixed plate 16 is disposed at the bottom of the soft magnetic plate 17 and connects the first magnetic conductive plate 14 and the second magnetic conductive plate 15, and the fixed plate 16 is further connected with a first fixing portion 161 and a second fixing portion 162, the elastic assembly includes two rotating frames 174, and a fixing shaft 163 and a torsion spring 164 disposed at the bottom of the soft magnetic plate 17, wherein two ends of the soft magnetic plate 17 are respectively and fixedly connected to the rotating frames 174, a rotating shaft 175 is disposed on the rotating frames 174, the rotating shaft 175 is rotatably mounted on the first magnetic conductive plate 14 and the second magnetic conductive plate 15, the rotating frames 174 can rotate around the rotating shaft 175 and simultaneously drive the soft magnetic plate 17 to move, and the rotating shaft 175 and the rotating frames 174 are optionally, but not limited to being integrally formed. At the bottom of the soft magnetic plate 17, a fixed shaft 163 is fixed to the first fixing portion 161 and the second fixing portion 162, and a torsion spring 164 is fitted over the fixed shaft 163.

In the initial state, the torsion spring 164 urges the soft-magnetic plate 17 such that the soft-magnetic plate 17 is in contact with the first contact opening 144 and the second contact opening 156 simultaneously. Specifically, the first contact 144 has a first contact portion above and a second contact portion below, and the second contact 156 has a first contact portion above and a second contact portion below. The first permanent magnet 154 is provided with an N pole at the upper side and an S pole at the lower side, and the second permanent magnet 155 is provided with an N pole at the upper side and an S pole at the lower side. In the initial state, the torsion spring 164 presses the soft magnetic plate 17 tightly, so that the soft magnetic plate 17 is simultaneously contacted with the first contact part of the first contact port 144 and the first contact part of the second contact port 156, and a first closed magnetic circuit of the first permanent magnet 154, the second magnetic conduction plate 15, the connecting magnetic plate 13, the first magnetic conduction plate 14, the soft magnetic plate 17 and the first permanent magnet 154 is formed; after the middle part of the soft magnetic plate 17 is pressed, the soft magnetic plate 17 rotates to contact with the second contact part of the first contact port 144 and the second contact part of the second contact port 156 to form a second closed magnetic circuit of the second permanent magnet 155-the soft magnetic plate 17-the first magnetic conduction plate 14-the connecting magnetic plate 13-the second magnetic conduction plate 15-the second permanent magnet 155, and as the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the first closed magnetic circuit is opposite to the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the second closed magnetic circuit, current is induced in the coil 12, and power can be supplied to a radio frequency circuit board and the like. Of course, the first permanent magnet 154 may have an S pole at the top and an N pole at the bottom, and the second permanent magnet 155 may have an S pole at the top and an N pole at the bottom, so that the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the first closed magnetic circuit is opposite to the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the second closed magnetic circuit.

Preferably, the fixing plate 16 is made of a non-magnetic material such as plastic, so that the magnetic induction lines do not pass through the fixing plate 16, and the fixing plate 16 is prevented from interfering with the magnetic circuit.

The self-generating device of the embodiment is suitable for a switch of a middle pressing type by setting the middle part of the soft magnetic plate 17 as a pressing part, and the switch is compact in structure. Further, the self-generating device is also suitable for a switch with two ends being pressed, and as shown in fig. 7, a buffer 173 can be arranged in the middle of the soft magnetic plate 17, so that buffering and energy storage can be performed during pressing, and the pressing hand feeling can be improved.

Preferably, as shown in fig. 3 to 8, the self-generating device of this embodiment further includes a first limiting member 181 and a second limiting member 182, and the first limiting member 181 and the second limiting member 182 are respectively disposed at two sides of the second magnetic conductive portion 172 of the soft magnetic plate 17, which is a portion of the soft magnetic plate 17 in the second contact port 156, so that the soft magnetic plate 17 can be limited in the left-right direction, i.e., in the length direction connecting the magnetic plate 13, and the soft magnetic plate 17 is prevented from being separated from the left-right direction. Further, the first contact port 144 and the second contact port 156 restrict the displacement of the soft magnetic plate 17 in the vertical direction, and prevent the soft magnetic plate 17 from being detached from the vertical direction.

From the above, the self-generating device provided by this embodiment has a simple structure and a small occupied space, and the switch manufactured by using the self-generating device has a small size and a compact structure, and meanwhile, the self-generating device is applicable to switches in various pressing forms.

Example two:

as shown in fig. 9-12, the present embodiment provides a wireless switch, which includes a base 2, an upper cover 3 and an elastic member 4, wherein the base 2 is configured with a self-generating device according to the first embodiment, one end of the elastic member 4 is fixedly connected to a soft magnetic plate 17, and the other end of the elastic member 4 is connected to the upper cover 3, and self-generation can be achieved by pressing the upper cover 3. Specifically, the self-generating device is fixed to the inner bottom surface of the base 2 through the fixing plate 16, one end of the elastic element 4 is fixed to the soft magnetic plate 17, and the other end of the elastic element 4 penetrates through and is sleeved on the positioning rod 33 on the inner bottom surface of the upper cover 3, so that the soft magnetic plate 17 can be driven to rotate by pressing the surface of the upper cover 3, switching of a closed magnetic circuit is performed, current is induced in the coil 12, and the wireless switch of the embodiment is small in size and compact in structure.

Further, in order to prevent the upper cover 3 from being separated from the base 2, the embodiment is provided with a plurality of limiting structures to limit the upper cover 3 and the base 2, as shown in fig. 10-12, the upper cover 3 is provided with a plurality of limiting hooks, the base 2 is provided with a plurality of limiting grooves, and the limiting hooks and the limiting grooves are matched to form the limiting structures to limit the upper cover 3 and the base 2. Specifically, spacing hook includes first spacing hook 31 and second spacing hook 32, and the spacing groove includes first spacing groove 21 and second spacing groove 22, and 3 inner walls of upper cover symmetry are equipped with two first spacing hooks 31, and 2 outer walls of base correspond and are equipped with two first spacing grooves 21, and under the initial condition, first spacing hook 31 catches on first spacing groove 21 and prevents that upper cover 3 breaks away from base 2 under the effect of elastic component 4. Further, four second limiting hooks 32 are further disposed on the inner side of the upper cover 3, and four second limiting grooves 22 are correspondingly disposed on the base 2, as shown in fig. 12, in an initial state, the second limiting hooks 32 hook the convex edge in the second limiting grooves 22 to prevent the upper cover 3 from being separated from the base 2 under the action of the elastic element 4. So, this embodiment can prevent that upper cover 3 from breaking away from base 2 through setting up a plurality of spacing hooks and spacing groove cooperation in diversified.

As can be seen from the above, the wireless switch of the present embodiment is small in size and compact in structure.

Example three:

as shown in fig. 13 to 15, the present embodiment provides a self-generating device, which is different from the self-generating device of the first embodiment in the structure of the soft magnetic plate 17 and the elastic member, and the elastic member of the present embodiment includes a spring 176, and the spring 176 is disposed between the soft magnetic plate 17 and the fixed plate 16. Specifically, the lower surface of the soft magnetic plate 17 and the upper surface of the fixed plate 16 are provided with a position-limiting sleeve 178, and a spring 176 is placed in the position-limiting sleeve 178, so that switching of the closed magnetic circuit can be performed by pressing the soft magnetic plate 17.

In the present embodiment, the first contact 144 is located above the first contact, the second contact is located below the first contact, the first contact is located above the second contact 156, and the second contact is located below the second contact. The first permanent magnet 154 is provided with an N pole at the upper side and an S pole at the lower side, and the second permanent magnet 155 is provided with an N pole at the upper side and an S pole at the lower side. In the initial state, the spring 176 presses the soft magnetic plate 17 tightly, so that the soft magnetic plate 17 is simultaneously contacted with the first contact part of the first contact port 144 and the first contact part of the second contact port 156, and a first closed magnetic circuit of the first permanent magnet 154, the second magnetic conduction plate 15, the connecting magnetic plate 13, the first magnetic conduction plate 14, the soft magnetic plate 17 and the first permanent magnet 154 is formed; after the soft magnetic plate 17 is pressed, the soft magnetic plate 17 moves downwards to contact with the second contact part of the first contact port 144 and the second contact part of the second contact port 156, a second closed magnetic circuit of the second permanent magnet 155, the soft magnetic plate 17, the first magnetic conduction plate 14, the connecting magnetic plate 13, the second magnetic conduction plate 15 and the second permanent magnet 155 is formed, and as the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the first closed magnetic circuit is opposite to the direction of the magnetic induction line passing through the connecting magnetic plate 13 in the second closed magnetic circuit, current is induced in the coil 12, and power can be supplied to a radio frequency circuit board and the like.

Preferably, the number of the springs 176 of this embodiment is two, and the springs are symmetrically arranged, so that the soft magnetic plate 17 can be ensured to move up and down smoothly.

Further, the self-generating device of the present embodiment further includes a plurality of limiting plates 177, and the plurality of limiting plates 177 are respectively disposed around the soft magnetic plate 17 to limit displacement of the soft magnetic plate 17 in the front-rear and left-right directions. Specifically, as shown in fig. 13, two limiting plates 177 are fixedly connected to the fixed plate 16 at each end of the soft magnetic plate 17 to limit the displacement of the soft magnetic plate 17 in the left-right direction, i.e., the longitudinal direction of the connecting magnetic plate 13, two limiting plates 177 are also provided at the sides of the soft magnetic plate 17, and the first bent portion 141 and the second bent portion 151 cooperate to limit the displacement of the soft magnetic plate 17 in the front-back direction, i.e., the width direction of the connecting magnetic plate 13, thereby further ensuring the smooth movement of the soft magnetic plate 17.

As shown in fig. 15, the present embodiment further provides a wireless switch, which includes a base 2, an upper cover 3 and an elastic element 4, and the structures of the three are the same as those of the second embodiment, which is not described herein again. The switch of this embodiment adopts the bullet form of touching, has saved the rotating turret in embodiment one, has further reduced whole self-generating device and has connected the size of 13 width directions of magnetic sheet for whole self-generating device's size is littleer, thereby makes the size of whole switch littleer, and the structure is compacter.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.