Silicon controlled rectifier wire inlet assembly and silicon controlled rectifier power supply

Abstract

The utility model relates to the technical field of power supplies, and discloses a silicon controlled rectifier wire inlet assembly and a silicon controlled rectifier power supply, comprising a wire inlet bar, an anode silicon controlled rectifier, an anode wire outlet bar, a cathode silicon controlled rectifier and a cathode wire outlet bar. One end of the incoming line bar is provided with a connector bar. The at least two positive silicon controlled rectifiers and the at least two negative silicon controlled rectifiers are sequentially arranged in the length direction of the wire inlet row, and the positive wire outlet row and the negative wire outlet row are parallel to the wire inlet row. The two ends of each anode silicon controlled rectifier are electrically connected with the wire inlet bar and the anode wire outlet bar respectively, and an anode output part is arranged at one end, away from the connector bar, of the anode wire outlet bar in the length direction. The two ends of each negative silicon controlled rectifier are electrically connected with the wire inlet bar and the negative wire outlet bar respectively, and a negative output part is arranged at the end, away from the connector bar, of the negative wire outlet bar in the length direction. According to the silicon controlled rectifier wire inlet assembly and the silicon controlled rectifier power supply, the alternating current input distance and the direct current output distance of each positive silicon controlled rectifier or each negative silicon controlled rectifier are close, and the current sharing property is better.

Description

Technical Field

[0001] This application relates to the field of power supply technology, specifically to a thyristor input component and a thyristor power supply. Background Technology

[0002] A three-phase bridge thyristor power supply is a device that uses thyristors to convert three-phase AC power at industrial frequency into DC power. For three-phase AC power, each phase is converted to DC power through a thyristor input assembly. To improve conversion efficiency and reliability, each thyristor input assembly includes multiple thyristors connected in parallel, converting single-phase AC power into DC power for output through each thyristor. The thyristor input assembly has high requirements for current sharing; that is, for each thyristor in the thyristor input assembly, the sum of the AC input distance and the DC output distance should be as equal as possible. The AC input distance is the distance between the AC input position and the thyristor, and the DC output distance is the distance between the DC output position and the thyristor.

[0003] In existing thyristor input assemblies, the input and output positions are often located on the same side. This results in the thyristor closest to the input and output positions having a smaller sum of AC input and DC output distances, while the thyristor farther away from the input and output positions has a larger sum of AC input and DC output distances. Consequently, the current sharing performance of the thyristor input assembly in the thyristor power supply is poor.

[0004] Therefore, how to solve or improve the problem of poor current sharing of thyristor input components in related technologies has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, this application provides a thyristor input module and a thyristor power supply to solve or improve the problem of poor current sharing of the thyristor input module.

[0006] In a first aspect, this application provides a silicon controlled rectifier (SCR) inlet assembly, comprising:

[0007] The incoming line has a terminal block at one end for connecting to AC power;

[0008] At least two positive thyristors are provided and arranged sequentially along the length of the input line. The first end of each positive thyristor is energized and connected to the input line. The positive thyristors are adapted to conduct during the positive half-cycle of the alternating current.

[0009] A positive terminal output bus is arranged parallel to the input bus. The second end of each positive thyristor is energized and connected to the positive terminal output bus. A positive output section is provided at the end of the positive terminal output bus away from the terminal block in the length direction.

[0010] The negative electrode thyristor corresponds one to the positive electrode thyristor and is arranged sequentially along the length of the input line. The first end of each negative electrode thyristor is energized and connected to the input line. The positive electrode thyristor is adapted to conduct during the negative half-cycle of the AC current.

[0011] The negative terminal output bus is arranged parallel to the input bus. The second end of each negative terminal thyristor is energized and connected to the negative terminal output bus. The negative terminal output bus has a negative output section at the end away from the terminal block in the length direction.

[0012] Optionally, it also includes:

[0013] Each conductive sheet corresponds to a positive thyristor. The middle part of each conductive sheet is connected to the input busbar. The first end of each conductive sheet is connected to each positive thyristor, and the second end of each conductive sheet is connected to each negative thyristor.

[0014] Optionally, it also includes:

[0015] Each positive electrode conductive bus is connected to a corresponding positive electrode thyristor, and each positive electrode conductive bus is energized and connected to the positive electrode input bus.

[0016] A negative electrode conductive bus is connected to each of the negative electrode thyristors in a one-to-one correspondence, and the first end of each of the negative electrode thyristors is connected to each of the negative electrode conductive buses in a one-to-one correspondence.

[0017] Optionally, it also includes:

[0018] An insulating plate is connected between the positive electrode output busbar and the negative electrode output busbar. The positive electrode thyristor is connected between the positive electrode conductive busbar and the positive electrode output busbar, and the negative electrode thyristor is connected between the negative electrode conductive busbar and the negative electrode output busbar.

[0019] Optionally, it also includes a clamping device.

[0020] The clamping device is connected to the positive electrode conductive busbar and the negative electrode conductive busbar respectively. The clamping device is used to clamp the positive electrode conductive busbar, the positive electrode thyristor, the positive electrode output busbar, the insulating plate, the negative electrode output busbar, the negative electrode thyristor and the negative electrode conductive busbar in sequence.

[0021] Optionally, the clamping device includes:

[0022] Base frame;

[0023] The first elastic element has one end connected to the base frame and the other end connected to the positive electrode conductive bus. Under the elastic force of the first elastic element, the positive electrode conductive bus tends to move closer to the positive electrode thyristor.

[0024] The second elastic element has one end connected to the base frame and the other end connected to the negative electrode conductive bus. Under the elastic force of the second elastic element, the negative electrode conductive bus tends to move closer to the negative electrode thyristor.

[0025] Optionally, the base frame includes:

[0026] A first substrate, wherein the first elastic element is connected between the first substrate and the positive electrode conductive busbar;

[0027] The second substrate, the second elastic element is connected between the second substrate and the negative electrode conductive busbar;

[0028] A connecting rod is used to connect the first substrate and the second substrate.

[0029] Optionally, it also includes:

[0030] A positive electrode fuse corresponds one-to-one with the positive electrode thyristor, and the first terminal of each positive electrode thyristor is energized and connected to the incoming line through the positive electrode fuse.

[0031] A negative electrode fuse; corresponding to each of the negative electrode thyristors, the first end of each of the negative electrode thyristors is energized and connected to the incoming line through the negative electrode fuse.

[0032] Secondly, this application also provides a thyristor power supply, including any of the thyristor input components described above.

[0033] Optionally, three thyristor input components are provided.

[0034] This application provides a thyristor input assembly, comprising: an input bus, a positive thyristor, a positive output bus, a negative thyristor, and a negative output bus. One end of the input bus is provided with a terminal block for connecting to AC power. At least two positive thyristors are provided, arranged sequentially along the length of the input bus, with the first end of each positive thyristor energized and connected to the input bus. The positive thyristors are adapted to conduct during the positive half-cycle of the AC power. The positive output bus is arranged parallel to the input bus, with the second end of each positive thyristor energized and connected to the positive output bus. A positive output section is provided at the end of the positive output bus furthest from the terminal block along its length. The negative thyristors correspond one-to-one with the positive thyristors and are arranged sequentially along the length of the input bus. The first end of each negative thyristor is energized and connected to the input bus. The positive thyristors are adapted to conduct during the negative half-cycle of the AC power. The negative terminal output busbar is arranged parallel to the input busbar. The second terminal of each negative terminal thyristor is energized and connected to the negative terminal output busbar. The negative terminal output busbar has a negative output section at the end furthest from the terminal block along its length. The input busbar has a first end and a second end along its length. A terminal block can be installed at either the first or second end of the input busbar for connecting AC power.

[0035] Since both the positive and negative output sections are located at the end furthest from the terminal block, the circuit for each positive thyristor includes the distance along the length of the positive output section between the terminal block and the positive output section, as well as the energizing distance from the input terminal block through each positive thyristor to the positive output terminal block. Therefore, the sum of the AC input distance and the DC output distance for each positive thyristor is similar, resulting in better positive current sharing in the thyristor input assembly. Similarly, the circuit for each negative thyristor includes the distance along the length of the negative output section between the terminal block and the negative output section, as well as the energizing distance from the input terminal block through each negative thyristor to the negative output terminal block. Therefore, the sum of the AC input distance and the DC output distance for each negative thyristor is similar, resulting in better negative current sharing in the thyristor input assembly. Thus, both positive and negative current sharing are better for the thyristor input assembly. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this application, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0037] Figure 1 This is a first-view axonometric view of a thyristor input assembly according to an embodiment of this application;

[0038] Figure 2This is a second-view axonometric view of a thyristor input assembly according to an embodiment of this application;

[0039] Figure 3 This is a side view of a thyristor input assembly according to an embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the inlet of a thyristor inlet assembly according to an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the output of a thyristor input component according to an embodiment of this application;

[0042] Figure 6 This is a front view of a thyristor input assembly according to an embodiment of this application;

[0043] Figure 7 This is a schematic diagram of the structure of a thyristor power supply according to an embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Inlet busbar; 2. Positive thyristor; 3. Positive outlet busbar; 4. Negative thyristor; 5. Negative outlet busbar; 6. Conductive sheet; 7. Positive conductor busbar; 8. Negative conductor busbar; 9. Insulating plate; 91. Intermediate plate; 92. First insulator; 93. Second insulator; 10. Pressing device; 101. Base frame; 1011. First substrate; 1012. Second substrate; 1013. Connecting rod; 102. First elastic element; 103. Second elastic element; 11. Positive fuse; 12. Negative fuse; 13. Terminal block. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The following is combined Figures 1 to 7 This describes an embodiment of the present application.

[0048] According to an embodiment of this application, in one aspect, a thyristor input assembly is provided, including: input bus 1, positive thyristor 2, positive output bus 3, negative thyristor 4, and negative output bus 5.

[0049] The incoming line 1 has a first end and a second end along its length, wherein a terminal block 13 can be provided at the first end or the second end of the incoming line 1, and the terminal block 13 is used to connect AC power.

[0050] For the positive terminal conversion output:

[0051] At least two positive thyristors 2 are provided, and there can be three. The three positive thyristors 2 are arranged sequentially along the length of the incoming line 1.

[0052] The positive thyristor 2 has a first terminal and a second terminal. After the alternating current enters from the first terminal of the positive thyristor 2, the positive half-cycle of the alternating current can pass through the positive thyristor 2, while the negative half-cycle of the alternating current is blocked by the positive thyristor 2, so that the second terminal of the positive thyristor 2 outputs positive direct current.

[0053] The positive terminal outlet 3 is arranged parallel to the incoming terminal outlet 1, so that the length direction of the positive terminal outlet 3 is consistent with the length direction of the incoming terminal outlet 1. That is, the positive thyristors 2 are also arranged sequentially along the length direction of the positive terminal outlet 3, and the second terminal of each positive thyristor 2 is energized and connected to the positive terminal outlet 3. The end of the positive terminal outlet 3 closer to the terminal block 13 along its length is the first end, and the end of the positive terminal outlet 3 further away from the terminal block 13 along its length is the second end. A positive output section is provided on the positive terminal outlet 3, wherein both the first and second ends of the positive terminal outlet 3 can be positive output sections.

[0054] If the first end of the positive output terminal block 3 is used as the positive output part, then the terminal block 13 is connected to the second end of the input terminal block 1. If the second end of the positive output terminal block 3 is used as the positive output part, then the terminal block 13 is connected to the first end of the input terminal block 1.

[0055] Taking the second end of positive terminal outlet 3 as the positive output section as an example:

[0056] For the positive thyristor 2 located near the input terminal block 1, AC power is quickly conducted to the first terminal of the positive thyristor 2 after passing through terminal block 13, resulting in a short AC input distance. Then, the second terminal of the positive thyristor 2 outputs positive DC power, which is conducted to the first terminal of the positive output terminal block 3. Afterward, the positive DC power needs to travel a longer distance in the positive output terminal block 3 to reach the second terminal of the positive output terminal block 3, resulting in a longer positive DC input distance.

[0057] For the positive thyristor 2, which is far from the input terminal block 1, after the AC current is conducted to the first end of the input terminal block 1 through the terminal block 13, it needs to travel a relatively long distance in the input terminal block 1 before it can reach the first end of the positive thyristor 2, resulting in a long AC input distance. Then, after the second end of the positive thyristor 2 outputs positive DC current and conducts to the terminal block 13, it can quickly reach the second end of the positive output terminal block 3 for output, resulting in a shorter positive DC input distance.

[0058] That is, the circuit for each positive thyristor 2 includes the distance along the length of the positive output section between the terminal block 13 and the positive output section, as well as the energizing distance from the input terminal block 1 through each positive thyristor 2 to the positive output terminal block 3. Therefore, the sum of the AC input distance and the positive DC output distance of each positive thyristor 2 is similar, resulting in better current sharing of the positive conversion of the thyristor input assembly.

[0059] For the negative terminal conversion output:

[0060] At least two negative electrode thyristors 4 are provided, and there can be three. The three negative electrode thyristors 4 are arranged sequentially along the length of the incoming line 1.

[0061] The negative thyristor 4 has a first terminal and a second terminal. After the alternating current enters from the first terminal of the negative thyristor 4, the negative half-cycle of the alternating current can pass through the negative thyristor 4, while the positive half-cycle of the alternating current is blocked by the negative thyristor 4, so that the second terminal of the negative thyristor 4 outputs negative direct current.

[0062] The negative terminal output busbar 5 is arranged parallel to the input busbar 1, so that the length direction of the negative terminal output busbar 5 is consistent with the length direction of the input busbar 1. That is, the negative terminal thyristors 4 are also arranged sequentially along the length direction of the negative terminal output busbar 5, and the second terminal of each negative terminal thyristor 4 is energized and connected to the negative terminal output busbar 5. The end of the negative terminal output busbar 5 closer to the terminal block 13 along its length direction is the first terminal, and the end of the negative terminal output busbar 5 further away from the terminal block 13 along its length direction is the second terminal. A negative terminal output section is provided on the negative terminal output busbar 5, wherein both the first and second terminals of the negative terminal output busbar 5 can be negative terminal output sections.

[0063] If the first end of the negative output terminal block 5 is used as the negative output part, then the terminal block 13 is connected to the second end of the input terminal block 1. If the second end of the negative output terminal block 5 is used as the negative output part, then the terminal block 13 is connected to the first end of the input terminal block 1.

[0064] Taking the second end of negative terminal 5 as the negative output section as an example:

[0065] For the negative thyristor 4 located near the input terminal block 1, AC power is quickly conducted to the first terminal of the input terminal block 1 via terminal block 13, resulting in a short AC input distance. Then, the second terminal of the negative thyristor 4 outputs negative DC power, which is conducted to the first terminal of the negative output terminal block 5. Afterward, the negative DC power needs to travel a longer distance in the negative output terminal block 5 to reach the second terminal of the negative output terminal block 5, resulting in a longer negative DC input distance.

[0066] For the negative thyristor 4, which is far from the input terminal block 1, after the AC current is conducted to the first end of the input terminal block 1 through the terminal block 13, it needs to travel a relatively long distance in the input terminal block 1 before it can reach the first end of the negative thyristor 4, resulting in a long AC input distance. Then, after the second end of the negative thyristor 4 outputs negative DC current and conducts to the terminal block 13, it can reach the second end of the negative output terminal block 5 as quickly as possible, resulting in a shorter negative DC input distance.

[0067] That is, the circuit for each negative thyristor 4 includes the distance along the length of the negative output section between the terminal block 13 and the negative output section, as well as the energizing distance from the input terminal block 1 through each negative thyristor 4 to the negative output terminal block 5. Therefore, the sum of the AC input distance and the DC output distance of each negative thyristor 4 is similar, resulting in better current sharing of the negative conversion in the thyristor input assembly.

[0068] In this way, the positive electrode current sharing and negative electrode current sharing of the thyristor-input module are both better, resulting in better stability of the thyristor-input module.

[0069] In some embodiments, the energizing distance from the input line 1 through each positive thyristor 2 to the positive output line 3 can be set to be the same, so that the sum of the AC input distance and the positive DC output distance of each positive thyristor 2 is the same, further improving the positive conversion current sharing performance.

[0070] The energizing distance from the input line 1 through each negative thyristor 4 to the negative output line 5 can be set to be the same, so that the sum of the AC input distance and the DC output distance of each negative thyristor 4 is the same, further improving the current sharing of the negative conversion.

[0071] As an optional embodiment, such as Figure 1 and Figure 4 As shown, the thyristor input assembly also includes conductive plates 6. Each thyristor input assembly corresponds one-to-one with the positive thyristor 2. The conductive plates 6 are arranged sequentially along the length of the input line 1. The middle portion of each conductive plate 6 is energized and connected to the input line 1, and the first end of each positive thyristor 2 is connected to the first end of a corresponding conductive plate 6, thus ensuring that the connection distance between each positive thyristor 2 and the input line 1 is the same.

[0072] The first end of each negative thyristor 4 is connected to the second end of a conductive sheet 6, thereby ensuring that the electrical distance between each negative thyristor 4 and the input line 1 is the same.

[0073] Meanwhile, since the middle part of each conductive sheet 6 is electrically connected to the input line 1, the connection distance between the first end of each positive thyristor 2 and the input line 1 is equal to the connection distance between the first end of each negative thyristor 4 and the input line 1, resulting in better overall current sharing of the thyristor input assembly.

[0074] It is worth noting that when the second end of the negative terminal output pin 5 serves as the negative output section, the situation is the same when the terminal block 13 is connected to the first end of the input pin 1.

[0075] As an optional embodiment, such as Figure 2 and Figure 3 As shown, the thyristor input assembly also includes a positive electrode busbar 7 and a negative electrode busbar 8.

[0076] For each positive electrode conducting bus 7, there is a one-to-one correspondence between the positive electrode conducting bus 7 and the positive electrode thyristor 2, and each positive electrode conducting bus 7 is arranged sequentially along the length of the input bus 1. The first end of each positive electrode thyristor 2 is connected to a corresponding positive electrode conducting bus 7, and each positive electrode conducting bus 7 is energized and connected to the input bus 1. The second end of each positive electrode thyristor 2 is energized and connected to the positive electrode output bus 3. Thus, for each positive electrode thyristor 2, AC power is conducted from the terminal block 13 to the input bus 1, and then through the corresponding positive electrode conducting bus 7 to the first end of that positive electrode thyristor 2.

[0077] When alternating current flows through the positive thyristor 2, the positive half-cycle of the alternating current can pass through the positive thyristor 2, while the negative half-cycle of the alternating current is blocked by the positive thyristor 2, thus outputting positive direct current from the second terminal of the positive thyristor 2. Then, the positive direct current is conducted to the positive terminal output line 3 and output from the positive output section.

[0078] For each negative electrode conductive busbar 8, there is a one-to-one correspondence between the negative electrode conductive busbar 8 and the negative electrode thyristor 4, with each negative electrode conductive busbar 8 arranged sequentially along the length of the input busbar 1. The first end of each negative electrode thyristor 4 is connected to a corresponding negative electrode conductive busbar 8, and each negative electrode conductive busbar 8 is energized and connected to the input busbar 1. The second end of each negative electrode thyristor 4 is energized and connected to the negative electrode output busbar 5. Thus, for each negative electrode thyristor 4, AC power flows from the terminal block 13 to the input busbar 1, and then through the corresponding negative electrode conductive busbar 8 to the first end of that negative electrode thyristor 4.

[0079] When alternating current passes through the negative thyristor 4, the negative half-cycle of the alternating current can pass through the negative thyristor 4, while the positive half-cycle of the alternating current is blocked by the negative thyristor 4, thus outputting negative direct current from the second terminal of the negative thyristor 4. Then, the negative direct current is conducted to the negative terminal output line 5 and output from the negative output section.

[0080] In optional embodiments, such as Figure 6As shown, the thyristor input assembly also includes an insulating plate 9, which is connected between the positive output busbar 3 and the negative output busbar 5, i.e., the positive output busbar 3 and the negative output busbar 5 are located on opposite sides of the insulating plate 9. The second terminal of the positive thyristor 2 is connected to the side of the positive output busbar 3 away from the insulating plate 9 to energize it, and the second terminal of the negative thyristor 4 is connected to the side of the negative output busbar 5 away from the insulating plate 9 to energize it. The first terminal of the positive thyristor 2 is connected to the positive conductive busbar 7 to energize it, and the first terminal of the negative thyristor 4 is connected to the negative conductive busbar 8 to energize it. In this way, the positive conductive busbar 7, the positive thyristor 2, the positive output busbar 3, the insulating plate 9, the negative output busbar 5, the negative thyristor 4, and the negative conductive busbar 8 are connected sequentially, making the overall assembly more compact.

[0081] In optional embodiments, such as Figures 1 to 3 As shown, the thyristor input assembly also includes a clamping device 10, which is connected to the side of the positive electrode conductive bus 7 away from the positive electrode thyristor 2 and the side of the negative electrode conductive bus 8 away from the negative electrode thyristor 4, respectively.

[0082] The clamping device 10 clamps the positive electrode conductive busbar 7 against the positive electrode thyristor 2, which in turn clamps the positive electrode thyristor 2 against the positive electrode output busbar 3, and further clamps the positive electrode output busbar 3 against the insulating plate 9. The clamping device 10 also clamps the negative electrode conductive busbar 8 against the negative electrode thyristor 4, which in turn clamps the negative electrode thyristor 4 against the negative electrode output busbar 5, and further clamps the negative electrode output busbar 5 against the insulating plate 9.

[0083] In this way, since the positive terminal outlet 3 and the negative terminal outlet 5 are located on both sides of the insulating plate 9 respectively, under the pressing action of the pressing device 10, the positive terminal outlet 3 and the negative terminal outlet 5 are pressed against the insulating plate 9 from both sides of the insulating plate 9 in opposite directions, so that the positive terminal conductive bus 7, the positive terminal thyristor 2, the positive terminal outlet 3, the insulating plate 9, the negative terminal outlet 5, the negative terminal thyristor 4 and the negative terminal conductive bus 8 are fixedly connected in sequence.

[0084] As an optional implementation method, such as Figure 1 As shown, the clamping device 10 includes a base frame 101, a first elastic element 102, and a second elastic element 103. The first elastic element 102 and the second elastic element 103 can be springs.

[0085] The first elastic member 102 has a first end and a second end. The first end of the first elastic member 102 is connected to the base frame 101, and the second end is connected to the positive electrode conductive bus 7. The base frame 101 presses the first elastic member 102 onto the positive electrode conductive bus 7. As a result, under the elastic force of the first elastic member 102, the positive electrode conductive bus 7 tends to move closer to the positive electrode thyristor 2, so that the positive electrode conductive bus 7 is pressed against the first end of the positive electrode thyristor 2.

[0086] The second elastic member 103 has a first end and a second end. The first end of the second elastic member 103 is connected to the base frame 101, and the second end is connected to the negative electrode conductive bus 8. The base frame 101 presses the second elastic member 103 onto the negative electrode conductive bus 8. As a result, under the elastic force of the second elastic member 103, the negative electrode conductive bus 8 tends to move closer to the negative electrode thyristor 4, so that the negative electrode conductive bus 8 is pressed against the first end of the negative electrode thyristor 4.

[0087] In optional embodiments, such as Figure 2 As shown, the base frame 101 includes a first substrate 1011, a second substrate 1012, and a connecting rod 1013. The connecting rod 1013 has a first end and a second end. The first substrate 1011 is connected to the first end of the connecting rod 1013, and the connecting rod 1013 is perpendicular to the first substrate 1011. The second substrate 1012 is connected to the second end of the connecting rod 1013, and the connecting rod 1013 is perpendicular to the second substrate 1012.

[0088] The first end of the first elastic member 102 is connected to the first substrate 1011, and the second end is connected to the positive electrode conductive bus 7. The first substrate 1011 presses the first elastic member 102 onto the positive electrode conductive bus 7.

[0089] The first end of the second elastic member 103 is connected to the second substrate 1012, and the second end is connected to the negative electrode conductive busbar 8. The first substrate 1011 presses the second elastic member 103 onto the negative electrode conductive busbar 8.

[0090] The connecting rod 1013 has an external thread on its outer wall. Mounting holes are provided on both the first substrate 1011 and the second substrate 1012. After the first end of the connecting rod 1013 passes through the mounting hole on the first substrate 1011, the first nut is inserted into and tightened from the first end of the connecting rod 1013, thereby pressing the first elastic member 102 onto the positive electrode conductive busbar 7. After the second end of the connecting rod 1013 passes through the mounting hole on the second substrate 1012, the second nut is inserted into and tightened from the second end of the connecting rod 1013, thereby pressing the second elastic member 103 onto the negative electrode conductive busbar 8.

[0091] In some embodiments, the insulating plate 9 includes an intermediate plate 91 and a first insulator 92 and a second insulator 93 disposed on both sides of the intermediate plate 91. The positive terminal output 3 is connected to the side of the first insulator 92 away from the intermediate plate 91, and the negative terminal output 5 is connected to the side of the second insulator 93 away from the intermediate plate 91. The intermediate plate 91 is provided with perforations, and the connecting plate passes through the perforations in the intermediate plate 91.

[0092] As an optional embodiment, such as Figure 4 and Figure 5 As shown, the thyristor input assembly also includes a positive electrode fuse 11 and a negative electrode fuse 12. Both the positive electrode fuse 11 and the negative electrode fuse 12 are fast-blow fuses.

[0093] The number of positive fuses 11 corresponds one-to-one with the number of positive thyristors 2. Each positive thyristor 2's first terminal is connected to a corresponding positive fuse 11, and each positive fuse 11 is connected to the incoming line busbar 1. Thus, each positive thyristor 2's first terminal is connected to the incoming line busbar 1 via a positive fuse 11. The positive fuses 11 provide protection between the incoming line busbar 1 and the positive thyristors 2, melting promptly in case of short circuits or other situations to protect the circuit.

[0094] The number of negative electrode fuses 12 corresponds one-to-one with the number of negative electrode thyristors 4. Each negative electrode thyristor 4 has its first terminal connected to a corresponding negative electrode fuse 12, and each negative electrode fuse 12 is connected to the incoming line busbar 1. Thus, each negative electrode thyristor 4's first terminal is connected to the incoming line busbar 1 via a negative electrode fuse 12. The negative electrode fuse 12 provides protection between the incoming line busbar 1 and the negative electrode thyristors 4, melting promptly in case of a short circuit to protect the circuit.

[0095] In an optional embodiment, the thyristor input assembly further includes multiple conductive plates 6, a positive electrode busbar 7, and a negative electrode busbar 8. The conductive plates 6 have a U-shaped structure, with the middle portion of each conductive plate 6 connected to the input busbar 1 for power supply. The first end of each conductive plate 6 is connected to a positive electrode fuse 11. The first end of each positive electrode busbar 7 is connected to the first end of a positive electrode thyristor 2 for power supply. The positive electrode fuse 11 is connected to the second end of a positive electrode busbar 7 for power supply.

[0096] The second end of each conductive sheet 6 is connected to a negative electrode fuse 12, the first end of each negative electrode conductive busbar 8 is connected to the first end of a negative electrode thyristor 4 for power supply, and the second end of each negative electrode fuse 12 is connected to the second end of a negative electrode conductive busbar 8 for power supply.

[0097] According to an embodiment of this application, another aspect provides a thyristor power supply, including any of the aforementioned thyristor input components. The technical effects of this thyristor power supply are the same as those of the thyristor input components, and therefore will not be described further.

[0098] In optional embodiments, such as Figure 7 As shown, three thyristor input assemblies are provided, each thyristor input assembly being used for electrical connection to one phase of the three-phase AC power supply. This forms a three-phase bridge thyristor power supply.

[0099] The positive output section of the positive terminal outlet 3 of the first thyristor input assembly is energized and connected to the positive terminal outlet 3 of the second thyristor input assembly. The positive output section of the positive terminal outlet 3 of the second thyristor input assembly is energized and connected to the positive terminal outlet 3 of the second thyristor input assembly. The positive output section of the positive terminal outlet 3 of the third thyristor input assembly can then serve as the DC positive output position of the thyristor power supply.

[0100] The negative output section on the negative terminal outlet 5 of the first thyristor input assembly is energized and connected to the negative terminal outlet 5 of the second thyristor input assembly. The negative output section on the negative terminal outlet 5 of the second thyristor input assembly is energized and connected to the negative terminal outlet 5 of the second thyristor input assembly. The negative output section on the negative terminal outlet 5 of the third thyristor input assembly can then serve as the negative output position of the thyristor power supply.

[0101] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A silicon controlled rectifier line-in assembly characterized by, Comprising: A wire inlet row (1) provided with a terminal block (13) for connecting alternating current at one end; Positive thyristors (2) provided at least two and arranged in sequence along the length direction of the wire inlet row (1), the first end of each of the positive thyristors (2) is respectively connected in power with the wire inlet row (1), the positive thyristors (2) are adapted to be turned on in the positive half cycle of the alternating current; A positive wire outlet row (3) arranged in parallel with the wire inlet row (1), the second end of each of the positive thyristors (2) is respectively connected in power with the positive wire outlet row (3), the positive wire outlet row (3) is provided with a positive output part at one end away from the terminal block (13) in the length direction; Negative thyristors (4) corresponding to the positive thyristors (2) and arranged in sequence along the length direction of the wire inlet row (1), the first end of each of the negative thyristors (4) is respectively connected in power with the wire inlet row (1), the positive thyristors (2) are adapted to be turned on in the negative half cycle of the alternating current; A negative wire outlet row (5) arranged in parallel with the wire inlet row (1), the second end of each of the negative thyristors (4) is respectively connected in power with the negative wire outlet row (5), the negative wire outlet row (5) is provided with a negative output part at one end away from the terminal block (13) in the length direction.

2. The silicon controlled rectifier line-in assembly of claim 1, wherein, Further comprising: Conductive sheets (6) corresponding to the positive thyristors (2), the middle part of each of the conductive sheets (6) is connected with the wire inlet row (1), the first end of each of the conductive sheets (6) is respectively connected with each of the positive thyristors (2) in one-to-one correspondence, and the second end of each of the conductive sheets (6) is respectively connected with each of the negative thyristors (4) in one-to-one correspondence.

3. The silicon controlled pacemaker lead assembly of claim 1, wherein, Further comprising: Positive conductive rows (7) connected with the positive thyristors (2) in one-to-one correspondence, each of the positive conductive rows (7) is respectively connected in power with the positive wire inlet row (1), Negative conductive rows (8) connected with the negative thyristors (4) in one-to-one correspondence, the first end of each of the negative thyristors (4) is respectively connected with each of the negative conductive rows (8) in one-to-one correspondence.

4. The silicon controlled pacemaker wire assembly of claim 3 wherein, Further comprising: An insulating plate (9) connected between the positive wire outlet row (3) and the negative wire outlet row (5), the positive thyristors (2) are connected between the positive conductive row (7) and the positive wire outlet row (3), and the negative thyristors (4) are connected between the negative conductive row (8) and the negative wire outlet row (5).

5. The silicon controlled pacemaker wire assembly of claim 4 wherein, Further comprising a compression device (10), The compression device (10) is respectively connected with the positive conductive row (7) and the negative conductive row (8), and the compression device (10) is used for sequentially compressing the positive conductive row (7), the positive thyristor (2), the positive wire outlet row (3), the insulating plate (9), the negative wire outlet row (5), the negative thyristor (4) and the negative conductive row (8).

6. The silicon controlled pacemaker wire assembly of claim 5, wherein, The compression device (10) comprises: A base frame (101); A first elastic member (102) has one end connected to the base frame (101) and the other end connected to the positive conductive bar (7). Under the elastic force of the first elastic member (102), the positive conductive bar (7) has a tendency to move close to the positive thyristor (2). A second elastic member (103) has one end connected to the base frame (101) and the other end connected to the negative conductive bar (8). Under the elastic force of the second elastic member (103), the negative conductive bar (8) has a tendency to move close to the negative thyristor (4).

7. The silicon controlled pacakge of claim 6 wherein, The base frame (101) comprises: A first base plate (1011) is connected between the first elastic member (102) and the positive conductive bar (7). A second base plate (1012) is connected between the second elastic member (103) and the negative conductive bar (8). A connecting rod (1013) is connected between the first base plate (1011) and the second base plate (1012).

8. The silicon controlled mains feed assembly according to any one of claims 1 to 7, characterized in that Further comprising: A positive fuse (11) corresponds to each positive thyristor (2). The first end of each positive thyristor (2) is connected to the incoming line bar (1) through the positive fuse (11). A negative fuse (12) corresponds to each negative thyristor (4). The first end of each negative thyristor (4) is connected to the incoming line bar (1) through the negative fuse (12).

9. A silicon controlled rectifier power supply characterized by comprising: Comprise: The silicon-controlled incoming line assembly according to any one of claims 1-8.

10. The SCR power supply of claim 9, wherein, The silicon-controlled incoming line assembly is provided with three.

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