Dual-power transformer type switching circuit and structure
Through the dual-power transformer-type switching circuit design, automatic power-off protection is achieved when any circuit fails, reducing costs, improving product price competitiveness, and solving the problem of high component costs in the existing technology.
Patent Information
- Application Number
- CN202422288222.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing circuit requires a two-cut switch board, switching power supply and relay, resulting in high component costs and high overall product costs.
The switch circuit of dual power transformer is adopted, and the main control circuit and the sub-control circuit are connected in series to the control board. The main control circuit is connected to the first power transformer circuit, the sub-control circuit is connected to the second power transformer circuit, and is connected to the control board in parallel to realize that when any circuit fails, the circuit is disconnected through the control board, which plays a power-off protection role.
It reduces product costs, improves product price competitiveness, and realizes circuit protection through mechanical kinetic energy, avoiding redundant use of components.
Smart Images
Figure CN223141803U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of circuit control, and relates to a switching circuit and structure of a dual-power transformer type. Background Art
[0002] The switch in the circuit is an important part of the power system and plays a role in controlling the on-off of the current. To prevent circuit failure, a protection circuit needs to be set up. When one switch fails, another switch is activated. Existing products need to use a two-knife switch board + switching power supply + relay, with high component costs and high overall product costs. Therefore, a switching circuit and structure of a dual-power transformer type are designed to reduce product costs. Content of the Utility Model
[0003] In order to achieve the above object, the utility model adopts the following technical solutions:
[0004] A switching circuit of a dual-power transformer type includes a main control circuit, a sub-control circuit, a first power transformation circuit, a second power transformation circuit, and a control board;
[0005] The main control circuit and the sub-control circuit are connected in series to the control board. The main control circuit is connected to the first power transformation circuit, the sub-control circuit is connected to the second power transformation circuit, and the first power transformation circuit and the second power transformation circuit are connected in parallel to the control board.
[0006] As a further scheme of the utility model: The main control circuit includes a first switch and a second switch. The first switch is connected to the live wire, and the second switch is connected to the neutral wire; the sub-control circuit includes a third switch, and the third switch is connected to the live wire.
[0007] As a further scheme of the utility model: The main control circuit and the sub-control circuit are connected to the control board through a pin connector.
[0008] A switching structure of a dual-power transformer type includes a main connector, a sub-connector, a first cover assembly, a second cover assembly, a first power transformer, a second power transformer, a first magnetic sheet, a second magnetic sheet, a sliding plate assembly, and a fixing bracket;
[0009] The main connector, the secondary connector, the first power transformer and the second power transformer are arranged on the fixed bracket; the main connector is electrically connected to the secondary connector, and the main connector is electrically connected to the first power transformer; the secondary connector is electrically connected to the second power transformer. The first cover assembly is arranged above the first power transformer, and the first magnetic sheet is located between the first cover assembly and the first power transformer. The second cover assembly is arranged above the second power transformer, and the second magnetic sheet is located between the second cover assembly and the second power transformer.
[0010] The sliding plate assembly is used to interlock with the first cover assembly and the second cover assembly, and the sliding plate assembly, the first cover assembly and / or the second cover assembly are used to connect to the main connector and / or the secondary connector.
[0011] As a further solution of the present utility model: the sliding plate assembly includes a sliding plate, a guide shaft and a tension spring. The guide shaft is connected to the fixed bracket, the sliding plate slides on the guide shaft, and one end of the tension spring is connected to the sliding plate.
[0012] As a further solution of the present utility model: the sliding plate is provided with a first skeleton position for interlocking with the first cover assembly, and the sliding plate is provided with a second skeleton position for interlocking with the second cover assembly; the sliding plate is provided with a third skeleton position for elastically connecting to the main connector; the second cover assembly is provided with a protruding position for elastically connecting to the secondary connector.
[0013] As a further solution of the present utility model: the second cover assembly includes a second cover and a torsion spring. The protruding position is located on the second cover, the second cover rotates along the axis of the torsion spring, and the lower part of the second cover interlocks with the second skeleton position.
[0014] As a further solution of the present utility model: the first cover assembly includes a first cover. The upper part of the first cover is provided with a wedge-shaped protrusion position for interlocking with the first skeleton position, and the first cover rotates along the axis of the wedge-shaped protrusion position.
[0015] As a further solution of the present utility model: the main connector includes a first connector and a second connector, the secondary connector includes a third connector, and the first connector, the second connector and the third connector are arranged in parallel.
[0016] As a further solution of the present utility model: the first connector, the second connector and the third connector are the same kind of component.
[0017] The beneficial effects of the present utility model:
[0018] A switching circuit of a dual-power transformer type, where the main control circuit is connected to the first power transformer circuit, and the secondary control circuit is connected to the second power transformer circuit. When any one of the main control circuit and the secondary control circuit fails, the other circuit controls the corresponding power transformer circuit to disconnect through the control board, thereby disconnecting the circuit and playing a power-off protection role. Adopting this technical solution can reduce costs and improve the price competitiveness of products.
[0019] A switching structure of a dual-power transformer type, when any one of the main connector and the secondary connector fails, the power transformer connected to the other connector is powered off, and the mechanical kinetic energy generated after the power transformer is powered off causes the sliding plate to reset, and the other connector is powered off, playing a circuit protection role. Adopting this technical solution can reduce costs and improve the price competitiveness of products. Brief Description of the Drawings
[0020] Figure 1 is a schematic diagram of a switching circuit of a dual-power transformer type;
[0021] Figure 2 is a schematic diagram of the closed state of a switching structure of a dual-power transformer type;
[0022] Figure 3 is a schematic diagram of the structure of the sliding plate of a switching structure of a dual-power transformer type;
[0023] Figure 4 is an assembly schematic diagram of the fixing plate of the sliding plate of a switching structure of a dual-power transformer type;
[0024] Figure 5 is a schematic diagram of the interlock between the sliding plate and the first cover plate of a switching structure of a dual-power transformer type;
[0025] Figure 6 is a schematic diagram of the interlock between the sliding plate and the second cover plate of a switching structure of a dual-power transformer type;
[0026] Figure 7 is another direction schematic diagram of the interlock between the sliding plate and the second cover plate of a switching structure of a dual-power transformer type;
[0027] As shown in the figure,
[0028] 110 - Main connector, 111 - First connector, 112 - Second connector,
[0029] 120 - Secondary connector, 121 - Third connector,
[0030] 210 - First cover plate assembly, 211 - First cover plate, 211a - Wedge protrusion position,
[0031] 220 - Second cover plate assembly, 221 - Second cover plate, 221a - Protruding position, 222 - Torsion spring,
[0032] 310 - First power transformer,
[0033] 320 - Second power transformer,
[0034] 410 - First magnetic sheet,
[0035] 420 - Second magnetic sheet,
[0036] 511 - Slide plate, 511a - First skeleton position, 511b - Second skeleton position, 511c - Third skeleton position, 512 - Guide shaft, 513 - Tension spring,
[0037] 610 - Fixed bracket. Detailed implementation mode
[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. It should be understood that the present application is not limited by the example embodiments disclosed herein. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.
[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.
[0041] In the embodiments of the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0042] Embodiment 1
[0043] As Figure 1 shown, a switching circuit of a dual - power transformer type includes a main control circuit, a sub - control circuit, a first power transformation circuit, a second power transformation circuit, and a control board; the main control circuit and the sub - control circuit are connected in series to the control board, the main control circuit is connected to the first power transformation circuit, the sub - control circuit is connected to the second power transformation circuit, and the first power transformation circuit and the second power transformation circuit are connected in parallel to the control board.
[0044] Among them, the main control circuit includes a first switch and a second switch, the first switch is connected to the live wire, and the second switch is connected to the neutral wire; the sub - control circuit includes a third switch, and the third switch is connected to the live wire.
[0045] Among them, the main control circuit and the sub - control circuit are connected to the control board through a pin connector.
[0046] For a switching circuit of a dual - power transformer type, the main control circuit is connected to the first power transformation circuit, and the sub - control circuit is connected to the second power transformation circuit. When any one of the main control circuit and the sub - control circuit fails, the other circuit controls the corresponding power transformation circuit to disconnect through the control board, thereby disconnecting the circuit and playing a power - off protection role.
[0047] In this embodiment, "failure" refers to the state in which the switching device cannot perform its closing function as expected under normal working conditions.
[0048] Embodiment 2
[0049] As Figures 2 - 6 shown, a switching structure of a dual - power transformer type includes a main connector 110, a sub - connector 120, a first cover assembly 210, a second cover assembly 220, a first power transformer 310, a second power transformer 320, a first magnetic sheet 410, a second magnetic sheet 420, a sliding plate assembly, and a fixed bracket 610.
[0050] The main connector 110, the secondary connector 120, the first power transformer 310, and the second power transformer 320 are arranged on the fixed bracket 610; the main connector 110 is electrically connected to the secondary connector 120, and the main connector 110 is electrically connected to the first power transformer 310; the secondary connector 120 is electrically connected to the second power transformer 320. A first cover assembly 210 is arranged above the first power transformer 310, and a first magnetic sheet 410 is located between the first cover assembly 210 and the first power transformer 310. A second cover assembly 220 is arranged above the second power transformer 320, and a second magnetic sheet 420 is located between the second cover assembly 220 and the second power transformer 320.
[0051] The sliding plate assembly is used to interlock with the first cover assembly 210 and the second cover assembly 220, and the sliding plate assembly, the first cover assembly 210, and / or the second cover assembly 220 are used to connect with the main connector 110 and / or the secondary connector 120.
[0052] Specifically, the main connector 110, the secondary connector 120, the first cover assembly 210, the second cover assembly 220, the first power transformer 310, the second power transformer 320, the first magnetic sheet 410, and the second magnetic sheet 420 are all fixed on the fixing frame, and the sliding plate assembly slides on the fixing frame. When the sliding plate assembly slides, the positions of the sliding plate assembly respectively trigger the main connector 110 to conduct, trigger the secondary connector 120 to conduct, trigger the first power transformer 310 to conduct through the first cover assembly 210, and trigger the second power transformer 320 to conduct through the second cover assembly 220.
[0053] The main connector 110 and the secondary connector 120 are elastic flappers. When the sliding plate assembly slides, when the main connector 110 or the secondary connector 120 is pressed by the sliding plate assembly, or indirectly pressed by the sliding plate assembly through the first cover assembly 210 or the second cover assembly 220, the corresponding circuits of the main connector 110 and the secondary connector 120 are conducted. When the sliding plate assembly slides, when the sliding plate assembly interlocks with the first cover assembly 210, it causes the first magnetic sheet 410 to contact the first power transformer 310, and the first power transformer 310 is conducted; when the sliding plate assembly interlocks with the first cover assembly 210, it causes the second magnetic sheet 420 to contact the second power transformer 320, and the second power transformer 320 is conducted.
[0054] Since the main connector 110 is electrically connected to the secondary connector 120, the main connector 110 is electrically connected to the first power transformer 310, and the secondary connector 120 is electrically connected to the second power transformer 320. When any one of the main connector 110 and the secondary connector 120 fails, the power transformer connected to the other connector is powered off. The mechanical kinetic energy generated after the power transformer is powered off resets the sliding plate 511, and the other connector is powered off, playing a role in circuit protection. Specifically, when the main connector 110 fails, the second power transformer 320 is controlled to be powered off, and the second cover assembly 220 moves under force to reset the sliding plate assembly. The elastic tab of the secondary connector 120 is not pressed, and the secondary connector 120 is powered off, protecting the circuit; when the secondary connector 120 fails, the first power transformer 310 is controlled to be powered off, and the first cover assembly 210 moves under force to reset the sliding plate assembly. The elastic tab of the main connector 110 is not pressed, and the main connector 110 is powered off, protecting the circuit.
[0055] In this embodiment, the failure means the state that the switching device cannot execute its closing function as expected under the normal working state.
[0056] Further, in this embodiment, as Figure 3 shown, the sliding plate assembly includes a sliding plate 511, a guide shaft, and a tension spring. The guide shaft is connected to the fixed bracket 610, the sliding plate 511 slides on the guide shaft, and one end of the tension spring is connected to the sliding plate 511.
[0057] Further, in this embodiment, as Figure 4 shown, the sliding plate 511 is provided with a first skeleton position 511a that is interlocked with the first cover assembly 210, and the sliding plate 511 is provided with a second skeleton position 511b that is interlocked with the second cover assembly 220; the sliding plate 511 is provided with a third skeleton position 511c that is elastically connected to the main connector 110; the second cover assembly 220 is provided with a protruding position 221a that is elastically connected to the secondary connector 120.
[0058] Further, in this embodiment, as Figure 4 and 6 shown in -7, the second cover assembly 220 includes a second cover 221 and a torsion spring 222. The protruding position 221a is located on the second cover 221. The second cover 221 rotates along the axis of the torsion spring 222, and the lower part of the second cover 221 is interlocked with the second skeleton position 511b.
[0059] Further, in this embodiment, as Figure 4 and 5 shown, the first cover assembly 210 includes a first cover 211. The upper part of the first cover 211 is provided with a wedge-shaped protruding position 211a that is interlocked with the first skeleton position 511a, and the first cover 211 rotates along the axis of the wedge-shaped protruding position 211a.
[0060] Furthermore, in this embodiment, if Figure 4 As shown, the main connector 110 includes a first connector 111 and a second connector 112, and the secondary connector 120 includes a third connector 121. The first connector 111, the second connector 112 and the third connector 121 are arranged in parallel. The first connector 111, the second connector 112 and the third connector 121 are the same components, which refer to switches in a circuit.
[0061] A dual power transformer type switch circuit and structure specific working principle:
[0062] Normal working principle:
[0063] When starting, the tension spring is stretched and the sliding plate 511 gradually moves downward;
[0064] When the second frame position 511b of the sliding plate 511 pushes the second cover plate 221 to swing, the second magnetic sheet 420 is driven to fit with the iron core on the surface of the second power transformer 320, and the protrusion 221a of the second cover plate 221 presses the auxiliary connector 120, and the auxiliary connector 120 is closed; at the same time, the first frame position of the sliding plate 511 pushes the wedge-shaped protrusion 211a of the first cover plate 211 to swing, and the first cover plate 211 drives the first magnetic sheet 410 to leave the iron core on the surface of the first power transformer 310;
[0065] When the third frame part 511c presses the main connector 110, the main connector 110 is closed, and a loop power supply is formed, and the circuit is connected;
[0066] When the second frame position 511b of the sliding plate 511 is staggered with the second cover plate 221, the bottom of the second cover plate 221 abuts against the second frame position 511b to form an interlocking, and at the same time, the first frame position hooks the wedge-shaped protrusion position 211a of the first cover plate 211 to form an interlocking, and the first magnetic sheet 410 fits with the iron core on the surface of the first power transformer 310. At this time, the whole machine enters a normal power-on working state;
[0067] When the work is finished or stopped actively, the first power transformer 310 or the second power transformer 320 is powered off, the corresponding cover assembly is released from the interlocking state, the tension spring releases the elastic potential energy, and then the sliding plate 511 is reset, and the circuit is powered off.
[0068] Fail-safe working principle:
[0069] When the main connector 110 and the secondary connector 120 are closed and in the working state, if the main connector 110 fails, at the end of the work or when actively stopping working, the PCB control board gives a signal to cut off the power supply of the second power transformer 320. The second cover plate 221 is opened under the action of the torsion spring 222, releasing the closing pressure on the secondary connector 120. The secondary connector 120 is opened under its own elastic force for power-off protection.
[0070] When the main connector 110 and the secondary connector 120 are closed and in the working state, if the secondary connector 120 fails, at the end of the work or when actively stopping working, the PCB control board gives a signal to cut off the power supply of the first power transformer 310. The first cover plate 211 loses the interlocking force, and the sliding plate 511 is pulled upward under the action of the tension spring. The third skeleton position 511c of the sliding plate 511 leaves the main connector 110, releasing the closing pressure on the main connector 110. The main connector 110 is opened under its own elastic force for power-off protection.
[0071] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.
[0072] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A switching circuit of a dual-power transformer type, characterized in that, It includes a main control circuit, a sub-control circuit, a first power transformation circuit, a second power transformation circuit, and a control board; The main control circuit and the sub-control circuit are connected in series to the control board. The main control circuit is connected to the first power transformation circuit, the sub-control circuit is connected to the second power transformation circuit, and the first power transformation circuit and the second power transformation circuit are connected in parallel to the control board.
2. The switching circuit of the dual-power transformer type according to claim 1, wherein The main control circuit includes a first switch and a second switch. The first switch is connected to the live wire, and the second switch is connected to the neutral wire; the sub-control circuit includes a third switch, and the third switch is connected to the live wire.
3. The switching circuit of the dual-power transformer type according to claim 1 or 2, characterized in that, The main control circuit and the sub-control circuit are connected to the control board through a pin connector.
4. A switching structure of a dual-power transformer type, characterized in that, It includes a main connector, a sub-connector, a first cover assembly, a second cover assembly, a first power transformer, a second power transformer, a first magnetic sheet, a second magnetic sheet, a sliding plate assembly, and a fixing bracket; The main connector, the sub-connector, the first power transformer, and the second power transformer are arranged on the fixing bracket; the main connector is electrically connected to the sub-connector, and the main connector is electrically connected to the first power transformer; the sub-connector is electrically connected to the second power transformer. The first cover assembly is arranged above the first power transformer, and the first magnetic sheet is located between the first cover assembly and the first power transformer. The second cover assembly is arranged above the second power transformer, and the second magnetic sheet is located between the second cover assembly and the second power transformer; The sliding plate assembly is used to interlock with the first cover assembly and the second cover assembly, and the sliding plate assembly, the first cover assembly, and / or the second cover assembly are used to connect to the main connector and / or the sub-connector.
5. The switch structure of the dual-power transformer type according to claim 4, characterized in that, The sliding plate assembly includes a sliding plate, a guide shaft, and a tension spring. The guide shaft is connected to the fixing bracket, the sliding plate slides on the guide shaft, and one end of the tension spring is connected to the sliding plate.
6. The switching structure of the dual-power transformer type according to claim 5, characterized in that, The sliding plate is provided with a first skeleton position for interlocking with the first cover assembly, and the sliding plate is provided with a second skeleton position for interlocking with the second cover assembly; the sliding plate is provided with a third skeleton position for elastically connecting to the main connector; the second cover assembly is provided with a protruding position for elastically connecting to the sub-connector.
7. The switching structure of the dual-power transformer type according to claim 6, characterized in that, The second cover assembly includes a second cover and a torsion spring. The protruding position is located on the second cover, and the second cover rotates along the axis of the torsion spring. The lower part of the second cover interlocks with the second skeleton position.
8. The switching structure of the dual-power transformer type according to claim 6 or 7, characterized in that, The first cover assembly includes a first cover. The upper part of the first cover is provided with a wedge-shaped protruding position for interlocking with the first skeleton position, and the first cover rotates along the axis of the wedge-shaped protruding position.
9. The switching structure of the dual-power transformer type according to claim 4, characterized in that, The main connector includes a first connector and a second connector, and the sub-connector includes a third connector. The first connector, the second connector, and the third connector are arranged in parallel.
10. The switch structure of the dual-power transformer type according to claim 9, characterized in that, The first connector, the second connector, and the third connector are the same kind of component.