Dual-power change-over switch

Abstract

The utility model relates to a dual power supply change-over switch, which comprises a mechanical change-over execution body, a power supply change-over control body and an electrical control module, the power supply change-over control body is provided with a side plate, the side plate is provided with an opening, and the electrical control module is detachably arranged in the opening; the electrical control module comprises a control module body and a PCB (printed circuit board), the control module body is provided with a cavity, the PCB is arranged in the cavity, and a gap between the PCB and the cavity is filled with insulating sealant. The gap between the PCB and the cavity is filled with the insulating sealant, so that no terminal of an electronic component on the PCB is exposed, the situation that the terminal of the electrical component of the PCB is easily in direct contact with the control module body in a humid environment to generate an electric arc to cause short circuit is avoided, the moisture-proof and dust-proof effects of the electrical control module are realized, and the service life of the electrical control module is prolonged. And the use safety and stability of the dual-power switching switch are improved.

Description

Technical Field

[0001] This utility model relates to a switch, and more particularly to a dual power supply switching switch. Background Technology

[0002] A dual power transfer switch is a device that can reliably switch between two power sources. With the development of society and the economy, many industries and departments have higher requirements for the reliability of power supply. In order to ensure the continuity of power supply, dual power supply is used in many important occasions.

[0003] Dual power transfer switches are typically installed inside distribution boxes, which are usually located in building basements or electrical rooms. These boxes are often in damp and cramped environments, placing higher demands on the stability and moisture resistance of the switches. Existing dual power transfer switches have PCB boards installed inside the control module body, with the component terminals on the PCB board exposed. Since the control module body is made of iron stamping parts with powder coating, it is prone to corrosion and rust in humid environments, which greatly reduces its insulation. Furthermore, the PCB board, which has not undergone any moisture-proofing treatment, is also prone to direct contact with the control module body in this environment, generating arcs and causing short circuits. This can easily lead to short circuits, burnout, or even explosion of the circuit board, thus preventing the dual power transfer switch from functioning properly. Utility Model Content

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a dual-power switching switch.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a dual power supply switching switch, including a mechanical switching execution body, a power switching control body and an electrical control module. The power switching control body is provided with a side plate, the side plate is provided with an opening, and the electrical control module is detachably provided in the opening.

[0006] The electrical control module includes a control module body and a PCB board. The control module body has a cavity, and the PCB board is placed inside the cavity. The gap between the PCB board and the cavity is filled with insulating sealant.

[0007] In a preferred embodiment of this utility model, the insulating sealant is an epoxy resin adhesive.

[0008] In a preferred embodiment of the present invention, a plurality of incoming copper busbars are provided on one side of the mechanical conversion actuator body, and a plurality of load copper busbars are provided on the other side. The outer surfaces of the plurality of incoming copper busbars are respectively covered with an incoming copper busbar insulating protective shell, and the outer surfaces of the plurality of load copper busbars are respectively covered with a load copper busbar insulating protective sleeve.

[0009] In a preferred embodiment of this utility model, each of the inlet copper busbars is provided with a groove, a connecting hole is provided in the groove, an external hexagonal nut is provided in the connecting hole, an inlet copper busbar is provided in the groove, and the inlet connecting hole of the inlet copper busbar is located on the upper part of the external hexagonal nut.

[0010] In a preferred embodiment of this utility model, the control module body is provided with an over / under voltage module socket.

[0011] In a preferred embodiment of this utility model, the control module body is provided with a buckle, and the PCB board abuts against the bottom end of the cavity through the buckle.

[0012] The beneficial effects of this utility model are: by filling the gap between the PCB board and the cavity with insulating sealant, it ensures that no terminals of electronic components are exposed on the PCB board, thus avoiding the situation where the terminals of electrical components on the PCB board are easily in direct contact with the control module body in a humid environment, which may cause arcing and short circuit. This achieves the function of moisture and dust protection for the electrical control module and improves the safety and stability of the dual power supply switching. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0015] Figure 3 This is an exploded structural diagram of the present invention. Figure 1 ;

[0016] Figure 4 This is an exploded structural diagram of the present invention. Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the connection structure between the incoming copper busbar and the insulating protective shell of the incoming copper busbar;

[0018] Figure 6 yes Figure 5 Enlarged structural diagram at point A in the middle;

[0019] Figure 7 This is a schematic diagram of the insulating protective shell structure for the incoming copper busbar;

[0020] Figure 8 yes Figure 7 Enlarged structural diagram at point B;

[0021] Figure 9 This is a schematic diagram of the insulation protection sleeve structure for the load copper busbar;

[0022] Figure 10 This is a schematic diagram of the electrical control module structure. Figure 1 ;

[0023] Figure 11 yes Figure 10 Enlarged structural diagram at point C;

[0024] Figure 12 This is a schematic diagram of the cavity structure filled with insulating sealant;

[0025] Figure 13 This is a schematic diagram of the electrical control module structure. Figure 2 ;

[0026] Figure 14 This is a schematic diagram of the over / under voltage module socket structure;

[0027] In the diagram: 1. Mechanical conversion actuator; 2. Power conversion control unit; 3. Electrical control module; 301. Control module body; 3011. Over / under voltage module socket; 302. PCB board; 303. Cavity; 304. Insulating sealant; 305. Buckle; 4. Inlet copper busbar; 401. Inlet connection hole; 5. Load copper busbar; 6. Inlet copper busbar insulating protective shell; 601. Groove; 602. Connection hole; 603. External hexagonal nut; 7. Load copper busbar insulating protective sleeve; 8. Side plate; 801. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] like Figures 1 to 14 The present invention relates to a dual power supply switching switch, comprising a mechanical switching actuator 1, a power switching control body 2, and an electrical control module 3. The power switching control body 2 is provided with a side plate 8, and the side plate 8 is provided with an opening 801. The electrical control module 3 is detachably disposed in the opening 801.

[0031] The electrical control module 3 includes a control module body 301 and a PCB board 302. The control module body 301 is provided with a cavity 303, and the PCB board 302 is provided inside the cavity 303. The gap between the PCB board 302 and the cavity 303 is filled with insulating sealant 304.

[0032] In the manufacturing process of the dual power supply switch of this utility model, the pre-made PCB board is first installed in the cavity 303 of the control module body 301. As a preferred embodiment, the control module body 301 in this application is provided with a buckle 305, and the PCB board 302 abuts against the bottom end of the cavity 303 through the buckle 305. The clip 305 improves the stability of the PCB board within the cavity 303, effectively preventing vibrations caused by the mechanical drive components switching on and off within the cavity 303. Then, insulating sealant 304 is filled into the gap between the PCB board and the cavity 303, ideally completely filling the gap without any exposed electronic component terminals. This also secures the PCB board within the cavity 303. Since no electrical component terminals are exposed, it prevents short circuits caused by direct contact between electrical component terminals and the control module body in humid environments. This achieves moisture and dust protection for the electrical control module 3, improving the safety and stability of the dual-power switching switch. As a preferred embodiment, the insulating sealant 304 in this application is epoxy resin, which is readily available and ensures insulation between the PCB board and the control module body 301. After filling the cavity 303 with insulating sealant 304, the side plate 8 is installed on the power conversion control body 2 with screws. Then, the completed electrical control module 3 is installed on the side plate 8 with screws, thus achieving a detachable connection between the electrical control module 3 and the power conversion control body 2. The size of the opening 801 on the side plate 8 can be adjusted according to the size of the electrical control module 3, greatly improving the adaptability of the electrical control module 3.

[0033] In a preferred embodiment, the mechanical switching actuator 1 of this application has multiple incoming copper busbars 4 on one side and multiple load copper busbars 5 on the other side. The outer surfaces of the multiple incoming copper busbars 4 are each covered with an incoming copper busbar insulating protective shell 6, and the outer surfaces of the multiple load copper busbars 5 are each covered with a load copper busbar insulating protective sleeve 7. The multiple incoming copper busbars 4 connect to the moving contacts within the mechanical switching actuator 1, and the multiple load copper busbars 5 connect to the stationary contacts within the mechanical switching actuator 1. The connection and disconnection of the moving contacts with the stationary contacts via mechanical drive components is a conventional technique in the art and therefore will not be elaborated upon in this application. The load copper busbars 5 are each covered with a load copper busbar insulating protective sleeve 7, and the incoming copper busbars 4 are each covered with an incoming copper busbar insulating protective shell 6. This achieves insulation of the remaining parts except for the necessary connections of the load copper busbars 5 and the incoming copper busbars 4, preventing the operator's hands or other parts from touching the incoming and load copper busbars of the switch, thus avoiding potential safety hazards.

[0034] In a preferred embodiment, each of the inlet copper busbar insulating protective shells 6 in this application is provided with a groove 601, a connection hole 602 is provided in the groove, an external hexagonal nut 603 is provided in the connection hole 602, an inlet copper busbar 4 is provided in the groove 601, and the inlet connection hole 401 of the inlet copper busbar 4 is located on the upper part of the external hexagonal nut 603. In this application, when the incoming copper busbar 4 is connected to the terminal block of the connector, screws and nuts are required to connect the incoming connection hole 401 to the terminal block of the connector. However, in this application, the external hexagonal nut 603 is placed in the connection hole 602 on the incoming copper busbar, and the incoming connection hole 401 matches the external hexagonal nut 603. That is, the external hexagonal nut 603 is fixed on the insulating protective shell 6 of the incoming copper busbar. When it is necessary to connect the incoming copper busbar 4 to the terminal block of the connector, only the screw needs to be rotated. Compared with the existing operation method that requires fixing the nut and then rotating the screw to fix the incoming copper busbar 4 to the terminal block of the connector, fixing the external hexagonal nut 603 inside the insulating protective shell 6 of the incoming copper busbar greatly improves the connection efficiency between the incoming copper busbar 4 and the terminal block of the connector.

[0035] In a preferred embodiment, the control module body 301 of this application is provided with an over / under voltage module socket 3011, and an over / under voltage expansion module can be installed in the over / under voltage module socket 3011. When the rated voltage of the dual power supply switch of this application is the same as the rated voltage of the area where it is used, it is not necessary to install an over / under voltage expansion module in the over / under voltage module socket 3011. When the rated voltage of the dual power supply switch is higher or lower than the rated voltage of the area where it is used, an over / under voltage expansion module (specifically including an overvoltage expansion module and an undervoltage expansion module) needs to be installed in the over / under voltage module socket 3011 to adjust the voltage of the dual power supply switch to meet the requirements of the area where it is used, thereby ensuring the safety and adaptability of the dual power supply switch.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A dual-power transfer switch, characterized in that, It includes a mechanical conversion execution body (1), a power conversion control body (2) and an electrical control module (3). The power conversion control body (2) is provided with a side plate (8), and the side plate (8) is provided with an opening (801). The electrical control module (3) is detachably provided in the opening (801). The electrical control module (3) includes a control module body (301) and a PCB board (302). The control module body (301) is provided with a cavity (303), and the PCB board (302) is provided inside the cavity (303). The gap between the PCB board (302) and the cavity (303) is filled with insulating sealant (304).

2. The dual power supply switching switch according to claim 1, characterized in that, The insulating sealant (304) is an epoxy resin adhesive.

3. The dual power supply switching switch according to claim 1, characterized in that, The mechanical conversion actuator (1) has multiple incoming copper busbars (4) on one side and multiple load copper busbars (5) on the other side. The outer surfaces of the multiple incoming copper busbars (4) are covered with incoming copper busbar insulation protective shells (6), and the outer surfaces of the multiple load copper busbars (5) are covered with load copper busbar insulation protective sleeves (7).

4. The dual power supply switching switch according to claim 3, characterized in that, Each of the inlet copper busbar insulating protective shells (6) is provided with a groove (601), a connecting hole (602) is provided in the groove (601), an external hexagonal nut (603) is provided in the connecting hole (602), an inlet copper busbar (4) is provided in the groove (601), and the inlet connecting hole (401) of the inlet copper busbar (4) is located on the upper part of the external hexagonal nut (603).

5. The dual power supply switching switch according to claim 1, characterized in that, The control module body (301) is provided with an over / under voltage module socket (3011).

6. The dual power supply switching switch according to any one of claims 1-5, characterized in that, The control module body (301) is provided with a buckle (305), and the PCB board (302) abuts against the bottom of the cavity (303) through the buckle (305).

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