Manual closing device of magnetic control type low-voltage molded case switch

Abstract

The utility model provides a magnetic control type low-voltage plastic shell switch manual closing device which comprises a power supply module, the power supply module is connected with an MCU, an analog signal sampling circuit, a battery and a capacitor charging module, the analog signal sampling circuit is connected with the MCU, the battery is sequentially connected with a boosting module and the capacitor charging module, a switch is arranged between the battery and the boosting module, and the capacitor charging module is connected with the MCU. A circuit is arranged on the rear side of the switch, the other end of the circuit is connected between the power module and the MCU, the capacitor charging module is sequentially connected with the capacitor and the H bridge, and the H bridge is further connected with the MCU and the magnetic control type low-voltage plastic shell switch. The problem that closing energy cannot be provided when no mains supply is input into a magnetic control switch is solved, and the magnetic control switch is compact in design, low in power consumption, energy-saving, environment-friendly, suitable for manual closing of the magnetic control switch and capable of being expanded to other application scenes needing a standby power supply; preferably, a zinc-nickel battery is used, so that the battery is more stable, safer, high in fire protection grade, small and convenient to install.

Description

Technical Field

[0001] This application relates to the field of low-voltage magnetic switch control, specifically to a manual closing device for a magnetically controlled low-voltage molded case switch. Background Technology

[0002] A magnetically controlled switch is a device that utilizes advanced semi-hard magnetic materials, employing excitation and demagnetization, supplemented by springs and a moving opening and closing mechanism. It is widely used in medium and low voltage lines. However, manually closing a magnetically controlled switch presents certain difficulties. Unlike permanent magnet materials, the magnetic materials used in magnetically controlled switches lose their magnetism after demagnetization. Closing requires external energy to the excitation coil; without mains power input, no closing energy can be provided. This application aims to enable manual closing. A search of existing technologies using keywords such as "magnetically controlled," "magnetically controlled switch," "low-voltage molded case switch," "manual," and "closing" yielded no relevant technical solutions.

[0003] Therefore, a new technical solution is needed to solve the technical problem that magnetically controlled switches cannot provide closing energy when there is no mains power input. Utility Model Content

[0004] This application provides a manual closing device for a magnetically controlled low-voltage molded case switch, including a power supply module. The power supply module is connected to an MCU, an analog signal sampling circuit, a battery, and a capacitor charging module. The analog signal sampling circuit is connected to the MCU. The battery is connected to a boost module and a capacitor charging module in sequence. A switch is provided between the battery and the boost module. A line is provided on the rear side of the switch. The other end of the line is connected between the power supply module and the MCU. The capacitor charging module is connected to a capacitor and an H-bridge in sequence. The H-bridge is also connected to the MCU and the magnetically controlled low-voltage molded case switch.

[0005] As a preferred embodiment, the magnetically controlled low-voltage molded case switch includes a molded case body and an excitation coil, the excitation coil being connected to an H-bridge.

[0006] As a preferred option, the battery is a zinc-nickel battery.

[0007] As a preferred embodiment, a diode D1 is provided between the power module and the MCU.

[0008] As a preferred embodiment, a diode D2 is provided on the circuit.

[0009] As a preferred embodiment, a diode D3 is provided between the power supply module and the capacitor charging module.

[0010] As a preferred embodiment, a diode D4 is provided between the boost module and the capacitor charging module.

[0011] This application can solve the problem that magnetically controlled switches cannot provide closing energy when there is no mains power input. This application has a compact design, low power consumption, energy saving and environmental protection. It is not only suitable for manual closing of magnetically controlled switches, but can also be extended to other application scenarios that require backup power. Preferably, this application uses zinc-nickel batteries, which makes the batteries more stable and safe, has a high fire protection rating, and the batteries are small and easy to install. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this application;

[0013] Figure label:

[0014] 1. Power supply module; 2. MCU; 3. Analog signal sampling circuit; 4. Battery; 5. Capacitor charging module; 6. Capacitor; 7. Boost module; 8. Circuit; 9. H-bridge; 10. Plastic housing body; 11. Excitation coil. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 The specific embodiments of this utility model will be described in detail below. It should be noted that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "front", "back", "between", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. 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; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0018] Example 1:

[0019] This embodiment provides a manual closing device for a magnetically controlled low-voltage molded case switch, comprising:

[0020] Power module 1 is connected to MCU 2, analog signal sampling circuit 3, battery 4, and capacitor charging module 5. Power module 1 draws power from AC mains and employs a high-efficiency power conversion chip to ensure the stability and reliability of AC mains power. Power module 1 outputs four voltage levels: DC1 (typically 3.3V / 5V) provides digital power to MCU 2; DC2 (typically 2.5V / 3V) provides analog power to analog signal sampling circuit 3; DC3 (3.6V-5.4V) charges battery 4; and DC4 (typically 16V-24V) powers capacitor charging module 5. MCU 2 is a microcontroller unit used to control the operation of the entire device. It can monitor and control the device status in real time; battery 4 uses AA or AAA grade zinc-nickel batteries, generally 2-3 of which are selected as backup power. Zinc-nickel batteries are lithium-free, more stable and safe, and have a high fire resistance rating; the size and application of zinc-nickel batteries are no different from civilian AA and AAA grade batteries, and the batteries are small and easy to install; in addition, the selection of zinc-nickel batteries can ensure long service life. Zinc-nickel batteries can meet the calendar life of 10 years and 5000 cycle life, and there is no need to replace the batteries during the entire life of the magnetic switch; the output voltage of capacitor charging module 5 is generally around 400V, which is used to charge capacitor 6 and store energy, and can complete the charging of capacitor 6 in a short time.

[0021] The analog signal sampling circuit 3 is connected to the MCU2. The analog signal sampling circuit 3 is used to collect signals from the voltage transformer (PT) and the current transformer (CT) and transmit the signals to the MCU2.

[0022] The battery 4 is sequentially connected to the boost module 7 and the capacitor charging module 5. A switch SW1 is provided between the battery 4 and the boost module 7. A line 8 is provided on the rear side of the switch SW1, and the other end of the line 8 is connected between the power module 1 and the MCU2. The boost module 7 boosts the voltage DC5 (2V-5.4V) provided by the battery 4 to the voltage DC6 (16V-24V) required by the capacitor charging module 5. When there is no mains power, the switch SW1 is closed to provide power to the subsequent system. The switch SW1 can be selected as a self-locking switch or a non-self-locking switch. If a non-self-locking switch is selected, it needs to be used with a hardware self-locking circuit. After the switch SW1 is triggered, the hardware circuit self-locks the switch and automatically turns off the self-locking after the circuit is closed. This is conventional prior art, and this application does not make any improvements to it, so it will not be described in detail here.

[0023] The capacitor charging module 5 is connected in sequence with capacitor 6 and H-bridge 9. H-bridge 9 is also connected to MCU2 and magnetically controlled low-voltage molded case switch respectively. The magnetically controlled low-voltage molded case switch includes a molded case body 10 and an excitation coil 11, which is a mature existing technology. This application does not make any improvements to it and will not be described in detail here. Capacitor 6 is used to store the boosted electrical energy and a high-capacity, high-voltage capacitor is selected. H-bridge 9 is used to drive the excitation coil 11 of the magnetically controlled low-voltage molded case switch.

[0024] When there is mains power input, power module 1 draws power from the mains and outputs four voltages to power MCU2, analog signal sampling circuit 3, battery 4, and capacitor charging module 5 respectively. When there is no mains power input, switch SW1 is manually closed, battery 4 provides energy to MCU2 and boost module 7, boost module 7 boosts the voltage to DC6 (16V-24V) to capacitor charging module 5, capacitor charging module 5 outputs DC7 (about 400V) to charge capacitor 6 for energy storage. When capacitor 6 has completed energy storage, MCU2 sends a closing signal to H-bridge 9, H-bridge 9 obtains energy from capacitor 6 to drive excitation coil 11, thereby completing the closing of the magnetically controlled low-voltage molded case switch.

[0025] Example 2:

[0026] This embodiment can prevent backflow between some components and avoid affecting the normal operation of other sub-circuits. Specifically:

[0027] Specifically: a diode D1 is provided between the power module 1 and the MCU2, and the diode D1 can prevent reverse current between the power module 1 and the MCU2; a diode D2 is provided on the line 8; the combined provision of diodes D1 and D2 can prevent reverse current between the power module 1 and the battery 4, and avoid affecting other sub-circuits.

[0028] A diode D3 is provided between the power module 1 and the capacitor charging module 5. The diode D3 is provided to prevent reverse current between the power module 1 and the capacitor charging module 5. A diode D4 is provided between the boost module 7 and the capacitor charging module 5. The diode D4 is provided to prevent reverse current between the boost module 7 and the capacitor charging module 5. The combined arrangement of diodes D3 and D4 is used to prevent reverse current between the power module 1 and the boost module 7, so as to avoid affecting other sub-circuits.

[0029] The working principle of this application is as follows:

[0030] When there is mains power input: power module 1 draws power from mains power and outputs four power sources. DC1 supplies power to MCU2 through diode D1, DC2 analog power supplies power to analog signal sampling circuit 3, DC3 charges battery 4, and DC4 supplies power to capacitor charging module 5 through diode D3. Capacitor charging module 5 further charges capacitor 6 to store energy. When it is necessary to open or close the circuit, MCU2 sends a command to control H-bridge 9 to drive the excitation coil 11 of magnetically controlled low-voltage molded case switch to realize the opening and closing action of the switch.

[0031] When there is no mains power input: When switch SW1 is closed, battery 4 provides energy to MCU2 through diode D2. Battery 4 also provides energy to boost module 7. Boost module 7 boosts the voltage provided by battery 4 to DC6. Capacitor charging module 5 outputs DC7 voltage to charge capacitor 6 for energy storage. When capacitor 6 has completed energy storage, MCU2 sends a closing signal to H-bridge 9. H-bridge 9 obtains energy from capacitor 6 to drive the excitation coil 11 of the magnetically controlled low-voltage molded case switch, thereby completing the closing of the magnetically controlled low-voltage molded case switch.

[0032] This application utilizes a battery as an energy source, combined with a power booster and energy storage module, to achieve a manual closing function when there is no mains power input. This application solves the problem that magnetically controlled switches cannot provide closing energy when there is no mains power input. This application features a compact design, low power consumption, energy saving, and environmental protection. It is not only suitable for the manual closing of magnetically controlled switches but can also be extended to other application scenarios that require backup power. Preferably, this application uses a zinc-nickel battery, which makes the battery more stable and safe, has a high fire protection rating, and is small and easy to install.

[0033] The specification provided herein contains numerous specific details; however, it will be understood that embodiments of the present invention may be practiced without these specific details, and in some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0034] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof; however, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspect lies in fewer than all features of the single embodiment disclosed above. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the invention.

[0035] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0036] It should be noted that the above embodiments are illustrative of the present invention and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention can be implemented by means of hardware comprising several different elements and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, etc., does not indicate any order. These words can be interpreted as names.

[0037] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

[0038] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications all fall within the protection scope of this application.

[0039] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, the various possible combinations in this application will not be described separately.

[0040] Furthermore, various different implementations of this application can be combined in any way, as long as they do not violate the spirit of this application, and such combinations should also be regarded as the content disclosed in this application.

Claims

1. A magnetically controlled low-voltage molded case switch manual closing device, comprising a power supply module (1), characterized in that, The power module (1) is connected to the MCU (2), the analog signal sampling circuit (3), the battery (4), and the capacitor charging module (5) respectively. The analog signal sampling circuit (3) is connected to the MCU (2). The battery (4) is connected to the boost module (7) and the capacitor charging module (5) in sequence. A switch SW1 is provided between the battery (4) and the boost module (7). A line (8) is provided on the back side of the switch SW1. The other end of the line (8) is connected between the power module (1) and the MCU (2). The capacitor charging module (5) is connected to the capacitor (6) and the H-bridge (9) in sequence. The H-bridge (9) is also connected to the MCU (2) and the magnetically controlled low-voltage plastic case switch respectively.

2. The manual closing device for a magnetically controlled low-voltage molded case switch according to claim 1, characterized in that, The magnetically controlled low-voltage molded case switch includes a molded case body (10) and an excitation coil (11), which is connected to an H-bridge (9).

3. The manual closing device for a magnetically controlled low-voltage molded case switch according to claim 1, characterized in that, The battery (4) is a zinc-nickel battery.

4. The manual closing device for a magnetically controlled low-voltage molded case switch according to claim 1, characterized in that, A diode D1 is provided between the power module (1) and the MCU (2).

5. A magnetically controlled low-voltage molded case switch manual closing device according to claim 1, characterized in that, A diode D2 is installed on the line (8).

6. A magnetically controlled low-voltage molded case switch manual closing device according to claim 1, characterized in that, A diode D3 is provided between the power module (1) and the capacitor charging module (5).

7. The manual closing device for a magnetically controlled low-voltage molded case switch according to claim 1, characterized in that, A diode D4 is provided between the boost module (7) and the capacitor charging module (5).

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