Silicon controlled rectifier direct current input power supply and power supply zero and live wire multiplexing structure
By sharing the DC neutral wire with the power supply negative electrode or common ground wire in the Thyristor control board, and conducting it with the T1 electrode of the Thyristor, the problem of current return due to the external neutral wire being disconnected is solved, and the wire harness saving and circuit safety improvement are achieved.
Patent Information
- Application Number
- CN202422095086.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-27
AI Technical Summary
In the prior art, the thyristor control board has a current return due to the external neutral circuit breaker, causing damage to the control board or peripheral circuit.
By sharing the DC neutral wire with the power supply negative electrode or common ground wire to form a multiplexed wire, and conducting the multiplexed wire with the T1 electrode of the Thyristor, the external neutral wire and the multiplexed wire are not connected, thereby avoiding current return.
It realizes the saving of wiring harnesses, optimizes wiring harness layout, reduces costs, and avoids the damage to the control board or peripheral circuit caused by external neutral circuit breakage.
Smart Images
Figure CN223052921U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of circuit technologies, and particularly to a thyristor DC input power supply and a power supply zero-fire wire multiplexing structure. Background Art
[0002] A bidirectional thyristor is an AC switching device that can control the flow of current in an AC circuit. Different from a unidirectional thyristor, a bidirectional thyristor can conduct in any direction, which makes it an ideal AC switching device. T1, T2, and G of the bidirectional thyristor represent its three electrodes respectively: T1 and T2 are the main terminals, without distinguishing between the cathode and the anode, and can conduct bidirectionally, while G is the gate, used to control the conduction and cut-off of the bidirectional thyristor. This design enables the bidirectional thyristor to flexibly control the direction and magnitude of current in an AC circuit.
[0003] In the prior art, the control board of the thyristor needs to be powered by isolated direct current, and its power supply methods mainly have the following four topological structures:
[0004] (1) The first one is as shown in Figure 1 . The external live wire is connected to the control board through a terminal. There is a load on the external live wire, and the external live wire is conducted to the T2 pole of the thyristor through the internal circuit of the control board; the external neutral wire is connected to the control board through a terminal, the positive power supply (V+ / VDD) is connected to the control board through a terminal, the negative power supply (V-) or the common ground wire (VSS) is connected to the control board through a terminal, and the external neutral wire and V- / VSS are conducted to the T1 pole of the thyristor through the internal circuit of the control board; the neutral wire of the direct current is connected to the external neutral wire through a terminal, and thus is indirectly conducted to the T1 pole of the thyristor;
[0005] (2) The second one is as shown in Figure 2 . The difference from the first one is that the external neutral wire and the positive power supply (V+ / VDD) are conducted to the T1 pole of the thyristor through the internal circuit of the control board, while the negative power supply (V-) or the common ground wire (VSS) is disconnected from the T1 pole of the thyristor;
[0006] (3) The third one is as shown in Figure 3 . The difference from the first one is that the positions of the external neutral wire and the external live wire are interchanged, and the live wire of the direct current is connected to the external live wire through a terminal;
[0007] (4) The fourth one is as shown in Figure 4 . The difference from the second one is that the positions of the external neutral wire and the external live wire are interchanged, and the live wire of the direct current is connected to the external live wire through a terminal.
[0008] However, for the above four topologies, once there are open circuit phenomena such as the external neutral line falling off or poor contact, it will cause the current to flow back to the circuit board powered by the control board, resulting in damage to the control board or the peripheral circuit of the control board. This problem has plagued the industry for many years. Summary of the Invention
[0009] An object of the present application is to provide a thyristor DC input power supply and power zero-fire wire multiplexing structure that can save wiring harnesses, optimize the wiring harness layout, and avoid damage to the control board or the peripheral circuit of the control board caused by an open circuit of the external neutral line.
[0010] To achieve the above object, the technical solution adopted in the present application is: a thyristor DC input power supply and power zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board; the neutral line of direct current is shared with the power supply negative pole and / or the common ground wire to form a multiplexing line and then connected to the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external live wire with a load; the external neutral line is connected to the control board, and the external neutral line is not conducted with the multiplexing line; the power supply positive pole is connected to the control board, and the power supply positive pole is not conducted with the T1 pole of the thyristor.
[0011] The present application also provides a thyristor DC input power supply and power zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board. The neutral line of direct current is shared with the power supply positive pole to form a multiplexing line and then connected to the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external live wire with a load; the external neutral line is connected to the control board, and the external neutral line is not conducted with the multiplexing line; the neutral line of the direct current and the power supply negative pole and / or the common ground wire are connected to the control board, and the neutral line of the direct current and the power supply negative pole and / or the common ground wire are not conducted with the T1 pole of the thyristor.
[0012] The present application also provides a thyristor DC input power supply and power zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board. The live wire of direct current is shared with the power supply negative pole and / or the common ground wire to form a multiplexing line and then connected to the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external neutral line with a load; the external live wire is connected to the control board, and the external neutral line is not conducted with the multiplexing line; the power supply positive pole is connected to the control board, and the power supply positive pole is not conducted with the T1 pole of the thyristor.
[0013] The present application also provides a thyristor DC input power supply and power supply zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board. The live wire of the direct current shares a common line with the power supply positive electrode to form a multiplexing line and then accesses the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external neutral wire with a load. The external live wire accesses the control board, and there is no conduction between the external neutral wire and the multiplexing line. The neutral wire of the direct current accesses the control board together with the power supply negative electrode and / or the common ground wire, and there is no conduction between the neutral wire of the direct current and the power supply negative electrode and / or the common ground wire and the T1 pole of the thyristor.
[0014] Preferably, an inductor and / or a resistor are / is provided on each of the multiplexing lines.
[0015] Compared with the prior art, the beneficial effects of the present application are as follows: (1) In the above four topological structures, since the neutral wire of the direct current shares a common line with the power supply negative electrode and / or the common ground wire to form a multiplexing line, or the neutral wire of the direct current shares a common line with the power supply positive electrode to form a multiplexing line, or the live wire of the direct current shares a common line with the power supply negative electrode and / or the common ground wire to form a multiplexing line, or the live wire of the direct current shares a common line with the power supply positive electrode to form a multiplexing line. Therefore, in the four topological structures, one wire harness can be saved, the wire harness layout is optimized, and the cost is reduced.
[0016] (2) Also, since there is no conduction between the multiplexing line and the external neutral wire in the four topological structures, even when the external neutral wire is open due to reasons such as falling off or poor contact, it will not cause current backflow to the circuit board powered by the control board, thus not causing damage to the control board or the peripheral circuit of the control board, and also avoiding the formation of other current loops by connecting the external neutral wire or the external live wire through the multiplexing line, solving the technical difficulties that have troubled the industry for many years. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the first topological structure in the prior art.
[0018] Figure 2 It is a schematic diagram of the second topological structure in the prior art.
[0019] Figure 3 It is a schematic diagram of the third topological structure in the prior art.
[0020] Figure 4 It is a schematic diagram of the fourth topological structure in the prior art.
[0021] Figure 5 It is a schematic diagram of Embodiment 1 provided by the present application.
[0022] Figure 6 It is a schematic diagram of Embodiment 2 provided by the present application.
[0023] Figure 7 It is a schematic structural diagram of the third embodiment provided by this application.
[0024] Figure 8 It is a schematic structural diagram of the fourth embodiment provided by this application.
[0025] Figure 9 It is a schematic structural diagram of the fifth embodiment provided by this application.
[0026] Figure 10 It is a schematic structural diagram of the sixth embodiment provided by this application.
[0027] Figure 11 It is a schematic structural diagram of the seventh embodiment provided by this application.
[0028] Figure 12 It is a schematic structural diagram of the eighth embodiment provided by this application.
[0029] Figure 13 It is a schematic structural diagram of the ninth embodiment provided by this application.
[0030] Figure 14 It is a schematic structural diagram of the tenth embodiment provided by this application.
[0031] Figure 15 It is a schematic structural diagram of the eleventh embodiment provided by this application.
[0032] Figure 16 It is a schematic structural diagram of the twelfth embodiment provided by this application.
[0033] In the figure: 100, resistor; 200, inductor. Specific embodiments
[0034] Next, in combination with specific embodiments, this application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.
[0035] In the description of the present application, it should be noted that for orientation terms, such as terms "center", "horizontal", "vertical", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation and position relationship are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present application 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 should not be construed as limiting the specific protection scope of the present application. The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. The terms "comprising" and "having" in the description and claims of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0036] Embodiment 1
[0037] Referring to Figure 5 , this embodiment provides a thyristor DC input power supply and power supply zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board; the zero line of the direct current shares with the power supply negative electrode (V-) and / or the common ground wire (VSS) to form a multiplexing line and then accesses the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external live wire with a load; the external zero line accesses the control board, and there is no conduction between the external zero line and the multiplexing line; the power supply positive electrode (V+ / VDD) accesses the control board, and there is no conduction between the power supply positive electrode (V+ / VDD) and the T1 pole of the thyristor.
[0038] Embodiment 2
[0039] Referring to Figure 6 , this embodiment provides a thyristor DC input power supply and power supply zero-fire wire multiplexing structure, including a control board and a thyristor located on the control board. The zero line of the direct current shares with the power supply positive electrode (V+ / VDD) to form a multiplexing line and then accesses the control board. The multiplexing line is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external live wire with a load; the external zero line accesses the control board, and there is no conduction between the external zero line and the multiplexing line; the zero line of the direct current and the power supply negative electrode (V-) and / or the common ground wire (VSS) access the control board, and there is no conduction between the zero line of the direct current and the power supply negative electrode (V-) and / or the common ground wire (VSS) and the T1 pole of the thyristor.
[0040] Embodiment 3
[0041] Refer to Figure 7 , this embodiment provides a thyristor DC input power supply and power supply zero-fire wire multiplexing structure, which includes a control board and a thyristor located on the control board. The live wire of the direct current shares with the power supply negative electrode (V-) and / or the common ground wire (VSS) to form a multiplexing wire and then accesses the control board. The multiplexing wire is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external neutral wire with a load; the external live wire accesses the control board, and there is no conduction between the external neutral wire and the multiplexing wire; the power supply positive electrode (V+ / VDD) accesses the control board, and the power supply positive electrode (V+ / VDD) is not conducted with the T1 pole of the thyristor.
[0042] Embodiment 4
[0043] Refer to Figure 8 , this embodiment provides a thyristor DC input power supply and power supply zero-fire wire multiplexing structure, which includes a control board and a thyristor located on the control board. The live wire of the direct current shares with the power supply positive electrode (V+ / VDD) to form a multiplexing wire and then accesses the control board. The multiplexing wire is conducted with the T1 pole of the thyristor, and the T2 pole of the thyristor is conducted with the external neutral wire with a load; the external live wire accesses the control board, and there is no conduction between the external neutral wire and the multiplexing wire; the neutral wire of the direct current accesses the control board with the power supply negative electrode (V-) and / or the common ground wire (VSS), and the neutral wire of the direct current is not conducted with the power supply negative electrode (V-) and / or the common ground wire (VSS) and the T1 pole of the thyristor.
[0044] It should be understood that in the four topological structures of Embodiment 1 to Embodiment 4, since the neutral wire of the direct current shares with the power supply negative electrode (V-) and / or the common ground wire (VSS) to form a multiplexing wire, or the neutral wire of the direct current shares with the power supply positive electrode (V+ / VDD) to form a multiplexing wire, or the live wire of the direct current shares with the power supply negative electrode (V-) and / or the common ground wire (VSS) to form a multiplexing wire, or the live wire of the direct current shares with the power supply positive electrode (V+ / VDD) to form a multiplexing wire. Therefore, in the four topological structures, one wire harness can be saved, the wire harness layout is optimized, and the cost is reduced.
[0045] In addition, because in the four topological structures, there is no conduction between the multiplexing wire and the external neutral wire. Therefore, even when the external neutral wire is open due to reasons such as falling off or poor contact, it will not cause current to flow back to the circuit board powered by the control board, thus not causing damage to the control board or the peripheral circuit of the control board, and also avoiding the formation of other current loops by connecting the external neutral wire or the external live wire through the multiplexing wire, solving the technical difficulties that have plagued the industry for many years.
[0046] It is understandable that, except for the circuit connection methods stated in this application, other circuit connection methods of the control board and thyristors [such as the connection methods between the positive power supply (V+ / VDD) and the internal circuit of the control board and between the external neutral wire and the internal circuit of the control board in Embodiment 1, the connection methods between the negative power supply (V-) and / or the common ground wire (VSS) and the control board and between the external neutral wire and the control board in Embodiment 2, the connection methods between the positive power supply (V+ / VDD) and the internal circuit of the control board and between the external live wire and the internal circuit of the control board in Embodiment 3, and the connection methods between the negative power supply (V-) and / or the common ground wire (VSS) and the control board and between the external live wire and the control board in Embodiment 4] are all prior arts and will not be elaborated in detail in this application.
[0047] Embodiment 5
[0048] Referring to Figure 9 , the difference between this embodiment and Embodiments 1 to 4 is that a resistor 100 is provided on the multiplexing line.
[0049] Embodiment 6
[0050] Referring to Figure 10 , the difference between this embodiment and Embodiment 5 is that the resistor 100 is replaced with an inductor 200.
[0051] Embodiment 7
[0052] Referring to Figure 11 , the difference between this embodiment and Embodiment 5 is that the resistor 100 is replaced with at least two resistors 100 connected in series.
[0053] Embodiment 8
[0054] Referring to Figure 12 , the difference between this embodiment and Embodiment 5 is that the resistor 100 is replaced with at least two inductors 200 connected in series.
[0055] Embodiment 9
[0056] Referring to Figure 13 , the difference between this embodiment and Embodiment 5 is that the resistor 100 is replaced with at least one resistor 100 and at least one inductor 200 connected in series.
[0057] Embodiment 10
[0058] Referring to Figure 14 , the difference between this embodiment and Embodiment 5 is that the resistor 100 is replaced with at least two resistors 100 connected in parallel.
[0059] Embodiment 11
[0060] Referring to Figure 15, the difference between this embodiment and the fifth embodiment is that the resistor 100 is replaced by at least two inductors 200 connected in parallel.
[0061] Embodiment Twelve
[0062] Refer to Figure 16 , the difference between this embodiment and the fifth embodiment is that the resistor 100 is replaced by at least one resistor 100 and at least one inductor 200 connected in parallel.
[0063] It should be understood that the manner and quantity of arranging the resistor 100 and / or the inductor 200 on the multiplexing line are not limited to the manners provided in the fifth to twelfth embodiments, and may also be any other equivalent manners.
[0064] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope claimed by the present application. The scope claimed by the present application is defined by the appended claims and their equivalents.
Claims
1. A thyristor DC input power supply and power supply zero and live wire multiplexing structure, comprising a control board and a thyristor located on the control board, characterized in that: The neutral line of the direct current is shared with the negative pole of the power supply and / or the common ground line to form a multiplexed line, which is then connected to the control board. The multiplexed line is connected to the T1 pole of the thyristor, and the T2 pole of the thyristor is connected to the external live wire with a load; the external neutral line is connected to the control board, and the external neutral line is not connected to the multiplexed line; the positive pole of the power supply is connected to the control board, and the positive pole of the power supply is not connected to the T1 pole of the thyristor.
2. The thyristor DC input power supply and power supply zero and live wire multiplexing structure as claimed in claim 1, characterized in that: The multiplexing line is provided with an inductor and / or a resistor.
3. A thyristor DC input power supply and power supply zero and live wire multiplexing structure, comprising a control board and a thyristor located on the control board, characterized in that: The neutral line of the direct current is shared with the positive pole of the power supply to form a multiplexed line, which is then connected to the control board. The multiplexed line is connected to the T1 pole of the thyristor, and the T2 pole of the thyristor is connected to the external live wire with a load; the external neutral line is connected to the control board, and the external neutral line is not connected to the multiplexed line; the neutral line of the direct current is connected to the negative pole of the power supply and / or the common ground line, and the neutral line of the direct current is not connected to the negative pole of the power supply and / or the common ground line and the T1 pole of the thyristor.
4. The thyristor DC input power supply and power supply zero and live wire multiplexing structure as claimed in claim 3, characterized in that: The multiplexing line is provided with an inductor and / or a resistor.
5. A thyristor DC input power supply and power supply neutral and live wire multiplexing structure, comprising a control board and a thyristor located on the control board, characterized in that: The live wire of the direct current is shared with the negative pole of the power supply and / or the common ground wire to form a multiplexed line which is then connected to the control board. The multiplexed line is connected to the T1 pole of the thyristor, and the T2 pole of the thyristor is connected to the external neutral line with a load; the external live wire is connected to the control board, and the external neutral line is not connected to the multiplexed line; the positive pole of the power supply is connected to the control board, and the positive pole of the power supply is not connected to the T1 pole of the thyristor.
6. The thyristor DC input power supply and power supply zero and live wire multiplexing structure as claimed in claim 5, characterized in that: The multiplexing line is provided with an inductor and / or a resistor.
7. A thyristor DC input power supply and power neutral and live wire multiplexing structure, comprising a control board and a thyristor located on the control board, characterized in that: The live wire of the direct current is shared with the positive pole of the power supply to form a multiplexed line, which is then connected to the control board. The multiplexed line is connected to the T1 pole of the thyristor, and the T2 pole of the thyristor is connected to the external neutral line with a load; the external live wire is connected to the control board, and the external neutral line is not connected to the multiplexed line; the neutral line of the direct current is connected to the negative pole of the power supply and / or the common ground line, and the neutral line of the direct current is not connected to the negative pole of the power supply and / or the common ground line and the T1 pole of the thyristor.
8. The thyristor DC input power supply and power supply zero and live wire multiplexing structure as claimed in claim 7, characterized in that: The multiplexing line is provided with an inductor and / or a resistor.