Anti-electric shock switch and electric energy meter

Abstract

The utility model provides an anti-electric shock switch and an electric energy meter, the anti-electric shock switch is arranged at one side, close to a wall surface, of the electric energy meter, and the anti-electric shock switch is characterized by comprising a connecting piece which is fixed at one side, close to the wall surface, of the electric energy meter and is made of an insulating material; the conductive piece is fixed to the side, close to the wall surface, of the connecting piece, and the conductive piece is in a connected state when bearing external pressure and is in a natural state when not bearing external pressure; the first contact is fixed on the connecting piece and electrically connected with an internal circuit of the electric energy meter, and the first contact is electrically connected with the conductive piece; and the second contact is fixed on the connecting piece and is electrically connected with an internal circuit of the electric energy meter, when the conductive piece is in the connecting state, the second contact is electrically connected with the conductive piece, and when the conductive piece is in the natural state, the second contact and the conductive piece are not conducted, so that automatic conduction and automatic power-off of the electric energy meter are realized. And the safety and convenience of the electric energy meter can be improved.

Description

Technical Field

[0001] This application belongs to the field of switches and relates to a technology for protecting against electric shock, particularly a switch and an electricity meter that are designed to prevent electric shock. Background Technology

[0002] Electricity meters are usually stored in meter boxes. When they reach the end of their service life or malfunction, they need to be removed for replacement or repair. It should be noted that removing an electricity meter while it is powered on poses a risk of electric shock. Generally, there is a switch on the meter; turning off the switch allows for safe removal of the meter.

[0003] However, existing electricity meter switches are usually manual switches, meaning that operators need to manually turn off the meter before removing it. This type of switch is not only inconvenient but also poses safety hazards. For example, if an operator forgets to turn off the switch, fails to press it due to error, or a non-professional accidentally removes the meter, there is a risk of electric shock.

[0004] Therefore, how to safely and conveniently remove the electricity meter is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide an anti-electric shock switch and an electricity meter to solve the problem that in the prior art, the switch of the electricity meter needs to be manually opened or closed by the operator, which may lead to the electricity meter being removed and the switch being forgotten or not being closed successfully, thus posing a certain safety hazard.

[0006] In a first aspect, this application provides an anti-electric shock switch, comprising: a connector fixed to the side of an electricity meter near a wall, the connector being made of an insulating material; a conductive element fixed to the side of the connector near the wall, the conductive element being in a connected state when subjected to external pressure and in a natural state when not subjected to external pressure; a first contact fixed to the connector and electrically connected to the internal circuit of the electricity meter, the first contact being electrically connected to the conductive element; and a second contact fixed to the connector and electrically connected to the internal circuit of the electricity meter, the second contact being electrically connected to the conductive element when the conductive element is in the connected state, and not conducting between the second contact and the conductive element when the conductive element is in the natural state.

[0007] In one embodiment of this application, the anti-electric shock switch further includes a pressure structure, which is fixedly connected or hinged to the connector, facing the conductive element and located on the side of the conductive element close to the wall; the pressure structure extends at least partially outside the electricity meter, and when the electricity meter is fixed to the wall for use, the pressure structure applies external pressure to the conductive element.

[0008] In one embodiment of this application, the pressure structure includes: an elastic element fixed to the connector and located on the side of the conductive element near the wall, the elastic element extending at least partially outside the electricity meter, and the wall exerting pressure on the elastic element when the electricity meter is fixed to the wall for use; and a pressing assembly located between the conductive element and the elastic element and fixedly connected to the elastic element, the pressing assembly applying external pressure to the conductive element when the wall exerts pressure on the elastic element.

[0009] In one embodiment of this application, the pressing assembly includes: a spring, fixedly connected to the elastic member; and a pressing end, fixedly connected to the end of the spring away from the elastic member and facing the conductive member.

[0010] In one embodiment of this application, the elastic element is made of any one of metal, rubber, or plastic.

[0011] In one embodiment of this application, both the first contact and the second contact are metal posts fixed on the connector.

[0012] In one embodiment of this application, a third contact is fixed on the connector. When the conductive element is in a connected state, the third contact is not conductive with the conductive element. When the conductive element is in a neutral state, the third contact is electrically connected with the conductive element.

[0013] Secondly, this application provides an electricity meter, comprising: an electricity meter housing, the electricity meter housing being made of insulating material; an anti-electric shock switch as described above, fixed to the side of the electricity meter housing near the wall; and an internal circuit disposed inside the electricity meter housing, the two ends of the internal circuit being electrically connected to the first contact and the second contact of the anti-electric shock switch, respectively.

[0014] In one embodiment of this application, both the first contact and the second contact are electrically connected to the internal circuit via conductive screws.

[0015] In one embodiment of this application, the internal circuit includes a transformer coil group.

[0016] As described above, this application provides an anti-electric shock switch and an electricity meter. The switch connects to a second contact when subjected to external pressure and is de-conductive when not subjected to external pressure. This allows the anti-electric shock switch to automatically switch from a conductive state to an open state when the electricity meter is removed, preventing electric shock caused by forgetting to turn off the switch or failing to turn it off successfully when removing the electricity meter. This effectively improves the safety of the electricity meter and simplifies the replacement or repair process without human intervention, thus improving the efficiency of electricity meter replacement or repair and facilitating its practical application. Attached Figure Description

[0017] Figure 1 The diagram shown is a structural schematic of an anti-electric shock switch according to an embodiment of this application.

[0018] Figure 2 The diagram shown is a structural schematic of another type of anti-electric shock switch described in an embodiment of this application.

[0019] Figure 3 The diagram shown is a structural schematic of another type of anti-electric shock switch described in an embodiment of this application.

[0020] Figure 4 The diagram shown is a structural schematic of another type of anti-electric shock switch described in an embodiment of this application.

[0021] Figure 5 The diagram shown is a structural schematic of another type of anti-electric shock switch described in an embodiment of this application.

[0022] Figure 6 The diagram shown is a structural schematic of another type of anti-electric shock switch described in an embodiment of this application.

[0023] Figure 7 The diagram shown is a schematic diagram of the internal circuit of an energy meter according to an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures

[0025] 100: Electric shock protection switch; 110: Connector; 120: First contact; 130: Second contact; 140: Conductive element; 150: Pressure structure; 151: Elastic element; 152: Pressing assembly; 1521: Spring; 1522: Pressing end; 160: Third contact; 210: Functional circuit; 220: Transformer coil assembly; 221: First coil; 222: Second coil. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] After prolonged use, electricity meters typically need to be removed for replacement or repair. To prevent electric shock when removing the meter, the meter's switch should generally be turned off to disconnect the power. However, existing electricity meter switches are usually located on the side of the meter and must be manually turned on or off by operators, which is inconvenient. Furthermore, if the switch is not turned off when removing the meter, or if it fails to disconnect due to aging or other issues, there is a significant risk of electric shock. Therefore, existing electricity meter switches still pose certain safety hazards.

[0029] The following embodiments of this application provide an anti-electric shock switch and an electricity meter. By ensuring that the conductive component is only connected when subjected to external pressure, the anti-electric shock switch automatically disconnects when removed, thereby reducing the risk of electric shock when removing the electricity meter. Moreover, it requires no manual operation, is convenient to operate, and helps to improve the efficiency of electricity meter replacement or maintenance.

[0030] The following will describe in detail the principle and implementation of an anti-electric shock switch and electricity meter according to the present embodiment with reference to the accompanying drawings, so that those skilled in the art can understand the anti-electric shock switch and electricity meter of the present embodiment without creative effort.

[0031] like Figure 1-2 As shown, the anti-electric shock switch 100 provided in this embodiment is installed on the side of the electricity meter near the wall. It can automatically cut off the power when the electricity meter is removed, thereby reducing the risk of electric shock and improving the safety of the electricity meter. Specifically, the anti-electric shock switch 100 provided in this embodiment includes a connector 110 and a conductive element 140, a first contact 120, and a second contact 130 fixed on the connector 110. The connector 110 is actually the main body of the anti-electric shock switch 100, used to provide mechanical support for the other structures of the anti-electric shock switch 100. Furthermore, the material of the connector 110 is an insulating material to achieve electrical isolation and insulation between the first contact 120 and the second contact 130, thereby enabling the anti-electric shock switch 100 to be turned on and off through the conductive element 140.

[0032] The first contact 120 and the second contact 130 are both fixed to the connector 110, serving as two electrical connection points of the anti-electric shock switch 100 for connection to the circuit. The circuit is controlled by whether the first contact 120 and the second contact 130 are electrically connected. Specifically, the first contact 120 and the second contact 130 are connected to both ends of the internal circuit of the electricity meter, so that the anti-electric shock switch 100 controls the opening or closing of the electricity meter. In some specific embodiments, such as... Figure 2 As shown, the first contact 120 and the second contact 130 are both metal pillars fixed on the connector 110. The conductivity of the metal is used to realize the electrical connection with the internal circuit of the energy meter. For example, the first contact 120 and the second contact 130 are both copper pillars, which have low resistivity and low cost.

[0033] The conductive element 140 is used to achieve an electrical connection between the first contact 120 and the second contact 130. Specifically, as shown... Figure 2 As shown, the conductive element 140 is electrically connected to the first contact 120. When the anti-electric shock switch 100 needs to be turned on, the conductive element 140 is in the connected state, that is, the conductive element 140 is electrically connected to the second contact 130. When the anti-electric shock switch 100 needs to be turned off, the conductive element 140 is in the unconnected state, that is, the conductive element 140 and the second contact 130 are not connected.

[0034] Furthermore, the conductive element 140 automatically transitions from a connected state to a neutral state when the electricity meter is removed, thereby disconnecting the anti-electric shock switch 100, reducing the risk of electric shock from the electricity meter, improving its safety, and offering greater convenience. Specifically, to achieve the state transition of the conductive element 140, it is fixed to the side of the connector 110 near the wall, extending at least partially outside the electricity meter. Since electricity meters are usually suspended on the wall during use, the side of the electricity meter closest to the wall is in close contact with the wall. Based on this, the conductive element 140 is set on the side of the connector 110 closest to the wall. When the electricity meter is suspended, the electricity meter is in close contact with the wall, and the part of the conductive element 140 extending to the outside of the electricity meter is squeezed by the wall. Under external pressure, the conductive element 140 is pressed down and is in a connected state, thereby realizing the electrical connection between the first contact 120 and the second contact 130. When the electricity meter is removed, the wall's squeezing of the conductive element 140 disappears. At this time, the conductive element 140 is not under external pressure, and the conductive element 140 springs up and is in a natural state. The first contact 120 and the second contact 130 are not conductive. Therefore, in this embodiment, the conductive element 140 is in a connected state when the electricity meter is in use, that is, when the electricity meter is suspended on the wall, so as to conduct the internal circuit of the electricity meter. When the electricity meter is removed, it pops up and automatically changes from the connected state to the natural state, thereby realizing the automatic power cut-off when the electricity meter is removed, so as to improve the safety and convenience of the electricity meter.

[0035] For example, the conductive element 140 is a metal sheet or metal strip. The conductivity of the metal is used to achieve electrical connection with the first contact 120 and the second contact 130. The ductility of the metal allows the conductive element 140 to change its state by being popped up or pressed down, thereby opening or closing the electric shock protection switch 100. Optionally, the conductive element 140 is a thin copper sheet, which has low resistivity, good ductility, and low cost.

[0036] It should be noted that the magnitude of the external pressure exerted by the wall on the conductive component 140 is actually determined by the mass of the electricity meter, which typically ranges from 300 grams to 3000 grams. To ensure that the conductive component 140 remains electrically connected to the second contact 130 even when the meter's mass is relatively small, the distance between the conductive component 140 and the second contact 130 is small in its natural state. Furthermore, since the conductive component 140 is energized when connected, its exposure poses a certain safety hazard. In some optional embodiments, such as... Figure 3 As shown, the conductive element 140 is located inside the connector 110 on the side near the wall. The anti-electric shock switch 100 also includes a pressure structure 150. Specifically, the pressure structure 150 is fixed to the connector 110 by a hinge and extends at least partially outside the electricity meter. When the electricity meter is suspended on the wall, the pressure of the wall causes the pressure structure 150 to rotate towards the conductive element 140, thereby pressing the conductive element 140 and applying external pressure to it.

[0037] In other alternative implementations, such as Figure 4 As shown, the pressure structure 150 is fixedly connected to the connector 110 on the side near the wall. Specifically, the pressure structure 150 includes an elastic member 151 fixed to the connector 110. The elastic member 151 extends at least partially beyond the electricity meter. When the electricity meter is suspended on the wall, the pressure from the wall causes the elastic member 151 to deform, bending towards the side near the conductive element, thereby compressing the conductive element 140 and applying external pressure to the conductive element 140. The material of the elastic member 151 includes, but is not limited to, metal, rubber, or plastic.

[0038] It should be noted that when the pressure structure 150 includes an elastic element 151, in order to improve the sensitivity of the electric shock protection switch 100, such as Figure 4 As shown, the pressure structure 150 also includes a pressing component 152, which is a pressing end or pressing block located between the conductive element 140 and the elastic element 151. It is fixedly connected to the elastic element 151 and transmits the pressure from the wall through the pressing component 152 to apply pressure to the conductive element 140, thereby reducing the deformation of the elastic element 151 when the electric shock switch 100 is turned on, and thus effectively improving the sensitivity of the electric shock switch 100.

[0039] In some alternative implementations, such as Figure 5 As shown, the pressing assembly 152 includes a spring 1521 and a pressing end 1522 fixedly connected. The spring 1521 is fixedly connected to the elastic element 151, and the pressing end 1522 is fixedly connected to the end of the spring 1521 away from the elastic element 151 and facing the conductive element 140. The spring 1521 transmits the pressure of the wall on the elastic element 151, and the pressing end 1522 applies this pressure to the conductive element 140, thereby achieving electrical connection between the conductive element 140 and the second contact 130 in the connected state. Furthermore, the spring 1521 provides cushioning to prevent excessive impact when the pressing end 1522 applies pressure to the conductive element 140, thus extending the service life of the electric shock protection switch 100. Optionally, the pressing end 1522 is fixedly connected to the conductive element 140, or the pressing end 1522 is not connected to the conductive element 140. Furthermore, the material of the pressing end 1522 is an insulating material to prevent current from flowing out through the pressing end 1522 when the conductive part 140 is energized in the connected state, thereby improving the safety of the electricity meter.

[0040] For example, the pressing end 1522 can be a columnar structure or a spherical structure, with one end fixed to the spring 1521 and the other end facing the conductive element 140, so as to apply pressure to the conductive element 140 when the elastic element 151 is squeezed and deformed.

[0041] In some alternative implementations, such as Figure 6 As shown, the electric shock protection switch 100 also includes a third contact 160, fixed to the connector 110 to form a double-throw switch, enabling the electric shock protection switch 100 to switch between different states, thereby achieving different circuit connections and improving the flexibility of the electric shock protection switch 100. Specifically, the second contact 130 and the third contact 160 are respectively connected to two different circuits, and the first contact 120 serves as the common terminal of the two circuits, maintaining an electrical connection with the conductive member 140. When the conductive element 140 is in its natural state, i.e. when the conductive element 140 is popped up, there is no electrical connection between the second contact 130 and the conductive element 140, and the third contact 160 is electrically connected to the conductive element 140. The energy meter performs the circuit function connected to the third contact 160. When the conductive element 140 is in the connected state, i.e. when the conductive element 140 is pressed down by external pressure, the second contact 130 is electrically connected to the conductive element 140, and there is no electrical connection between the third contact 160 and the conductive element 140. The energy meter performs the circuit function connected to the second contact 130, thereby realizing the switching between different functions of the energy meter and improving the flexibility of the energy meter.

[0042] Based on this, this embodiment provides an anti-electric shock switch 100, which automatically cuts off the power to the electricity meter by changing the state of the conductive component 140 when the electricity meter is removed, thereby reducing the risk of electric shock when the electricity meter is removed, effectively improving the safety of the electricity meter, and eliminating the need for manual power disconnection, making it convenient to operate and improving the efficiency of electricity meter replacement or maintenance.

[0043] On the other hand, this application also provides an electricity meter that can automatically turn on when in use and automatically turn off when removed, thereby improving the convenience and safety of electricity meter use. Specifically, the electricity meter includes an electricity meter casing, an internal circuit disposed within the electricity meter casing, and an anti-electric shock switch 100 connected to the internal circuit and located on the side of the electricity meter casing closest to the wall. The electricity meter casing supports the various structural components of the electricity meter, enclosing each component within it to protect it. Furthermore, the electricity meter casing is made of insulating material to prevent electrical conductivity and potential safety hazards.

[0044] The anti-electric shock switch 100 is used to automatically turn on and off the electricity meter, thereby improving the safety and convenience of the meter. Specifically, when the electricity meter is suspended on the wall, the anti-electric shock switch 100 is on, and the meter can be used normally. When the electricity meter is removed, the anti-electric shock switch 100 is off to prevent electric shock caused by the meter being energized when it is removed. For the specific working principle and implementation method of the anti-electric shock switch 100, please refer to the foregoing content, which will not be repeated here.

[0045] The internal circuit refers to the circuit structure required for the electricity meter to measure electricity. The two ends of this internal circuit are electrically connected to the first contact 120 and the second contact 130 of the anti-electric shock switch 100, respectively, thereby enabling the electricity meter to open and close via the anti-electric shock switch 100. For example, the first contact 120 and the second contact 130 of the anti-electric shock switch 100 are each connected to a conductive screw, thereby establishing the electrical connection between the internal circuit and the anti-electric shock switch 100 via the conductive screw.

[0046] In some alternative implementations, the internal circuitry is connected to the power grid to supply power to the internal circuitry, enabling it to obtain electrical energy. Specifically, such as... Figure 7As shown, the internal circuit includes a transformer coil group 220, which includes a first coil 221 and a second coil 222 arranged opposite to each other. The first coil 221 is connected to the power grid. Specifically, one end of the first coil 221 is connected to the neutral wire, and the other end is connected to the live wire, so that the alternating current provided by the power grid generates an alternating magnetic field in the first coil 221. The second coil 222 is connected to the functional part circuit 210 of the internal circuit. Specifically, different functional parts in the functional part circuit 210 are respectively connected to corresponding power terminals, and the two ends of the second coil 222 are respectively connected to the corresponding power terminals to realize electrical connection with each functional part, thereby realizing the corresponding functions of the energy meter. According to the principle of electromagnetic induction, the alternating magnetic field generated by the first coil 221 will form a corresponding induced electric field in the second coil 222. That is, the second coil 222 generates an induced voltage in the alternating magnetic field of the first coil 221, thereby supplying power to other functional parts of the internal circuit to realize the energy meter's functions such as energy measurement.

[0047] Furthermore, the second coil 222 is connected to the anti-electric shock switch 100, and the anti-electric shock switch 100 controls the conduction or disconnection of the circuit where the second coil 222 is located, thereby realizing the control of the opening and closing of the electricity meter.

[0048] In summary, the electric shock protection switch and electricity meter provided in this application automatically turn the electric shock protection switch 100 on or off through the conductive component 140. When applied to an electricity meter, it can automatically cut off the power when the electricity meter is removed, thereby effectively reducing the risk of electric shock when removing the electricity meter, improving the safety during the replacement or maintenance of the electricity meter, and because the electricity meter automatically cuts off the power, no manual operation is required, which is simple and convenient, effectively improving the efficiency of electricity meter replacement or maintenance, and has high industrial application value.

[0049] The descriptions of the processes or structures corresponding to the above figures each have their own emphasis. For parts of a process or structure that are not described in detail, please refer to the relevant descriptions of other processes or structures.

[0050] The above embodiments are merely illustrative of the principles and effects of this application and are not intended to limit this application. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this application should still be covered by the claims of this application.

Claims

1. An electric shock protection switch, characterized in that, include: A connector is fixed to the side of the electricity meter near the wall, and the connector is made of insulating material; A conductive component is fixed to the side of the connector near the wall. The conductive component is in a connected state when subjected to external pressure and in a natural state when not subjected to external pressure. The first contact is fixed on the connector and electrically connected to the internal circuit of the energy meter; the first contact is also electrically connected to the conductive component. The second contact is fixed on the connector and electrically connected to the internal circuit of the energy meter. When the conductive element is in the connected state, the second contact is electrically connected to the conductive element. When the conductive element is in the unconnected state, the second contact is not connected to the conductive element.

2. The switch according to claim 1, characterized in that, It also includes a pressure structure, which is fixedly connected or hinged to the connector, facing the conductive element and located on the side of the conductive element closer to the wall; the pressure structure extends at least partially outside the electricity meter, and when the electricity meter is fixed to the wall for use, the pressure structure applies external pressure to the conductive element.

3. The switch according to claim 2, characterized in that, The pressure structure includes: An elastic element, fixed to the connector, is located on the side of the conductive element near the wall. The elastic element extends at least partially outside the electricity meter. When the electricity meter is fixed to the wall for use, the wall exerts pressure on the elastic element. The pressing component is located between the conductive element and the elastic element and is fixedly connected to the elastic element. When the wall surface presses against the elastic element, the pressing component applies external pressure to the conductive element.

4. The switch according to claim 3, characterized in that, The pressing component includes: The spring is fixedly connected to the elastic element; The pressing end is fixedly connected to the end of the spring away from the elastic element and is directly opposite the conductive element.

5. The switch according to claim 3, characterized in that, The elastic element is made of any one of metal, rubber, or plastic.

6. The switch according to claim 1, characterized in that, Both the first contact and the second contact are metal pillars fixed to the connector.

7. The switch according to claim 1, characterized in that, Also includes: The third contact is fixed on the connector. When the conductive component is in the connected state, the third contact is not conductive with the conductive component. When the conductive component is in the unconnected state, the third contact is electrically connected with the conductive component.

8. An electricity meter, characterized in that, include: The housing of the electricity meter is made of insulating material; The anti-electric shock switch as described in any one of claims 1-7 is fixed to the side of the electricity meter casing near the wall. An internal circuit is installed inside the casing of the electricity meter, and the two ends of the internal circuit are electrically connected to the first contact and the second contact of the anti-electric shock switch, respectively.

9. The electricity meter according to claim 8, characterized in that, Both the first contact and the second contact are electrically connected to the internal circuit via conductive screws.

10. The electricity meter according to claim 8, characterized in that, The internal circuitry includes a transformer coil assembly.

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