Single-phase power system and single-phase power distribution three-phase commutator switch thereof

Abstract

The application relates to the technical field of power devices, in particular to a single-phase power system and a single-phase power distribution three-phase commutating switch thereof, which comprises a shell, a first connecting rod and first, second and third loops arranged in the shell, and the rotation of the first connecting rod enables at most one of the first, second and third loops to be communicated. In use, a first input component, a second input component and a third input component are combined with A phase, B phase and C phase of three-phase power respectively, and a power consumption device is connected with a first connecting part; according to the actual load condition of three-phase power, for example, A phase > B phase > C phase, the first connecting rod is rotated to enable two ends of a third connecting block to be connected with the third input component and a third output component respectively, at this moment, the third loop is communicated, and the first loop and the second loop are disconnected, and the single-phase power consumption device can be connected to the C phase loop, so that the effect of balancing three-phase load is achieved.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and in particular to a single-phase power system and its single-phase power distribution three-phase switching switch. Background Technology

[0002] Power systems typically output three-phase electricity, while end-user devices often require single-phase distribution. The widespread use of single-phase devices in a power system can easily lead to three-phase imbalance. Existing methods for mitigating three-phase imbalance primarily involve balancing the three-phase load during the initial planning and design phases, followed by centralized mitigation at the front end using three-phase imbalance mitigation equipment. However, actual load distribution often deviates significantly from the planned design, making it difficult to achieve true three-phase balance. Centralized three-phase balancing equipment uses power electronic rectification and inversion technology to transfer current from high-load phases to low-load phases, thus achieving three-phase balance. This technology suffers from drawbacks such as high equipment cost and significant losses, and is rarely used in power systems. To achieve three-phase balance throughout the entire power system link from the end to the front end, a power device is needed to perform three-phase commutation for end-user single-phase distribution systems, thereby balancing the three-phase load of the distribution system.

[0003] Data center terminal equipment such as servers, switches, lighting, various valves, and sensors are all single-phase devices. Three-phase imbalance is more common in data center power systems. This imbalance increases losses in transformers, UPS systems, and cables, reduces the overall system load, and shortens equipment lifespan. Therefore, a power device is needed to perform three-phase commutation in data center terminal power distribution systems to balance the three-phase load. Summary of the Invention

[0004] Based on this, the present invention provides a single-phase power system for electrical equipment and a single-phase power distribution three-phase switching switch thereof.

[0005] The technical solution of the present invention is as follows: a single-phase power system and its single-phase power distribution three-phase switching switch, comprising a housing, a first connecting rod, and a first circuit, a second circuit, and a third circuit disposed within the housing. The first circuit includes a first input component, a first connecting block, and a first output component. The second circuit includes a second input component, a second connecting block, and a second output component. The third circuit includes a third input component, a third connecting block, and a third output component. The housing has a first connecting portion, and the first output component, the second output component, and the third output component are all connected to the first connecting portion. The first connecting block, the second connecting block, and the third connecting block are fixed to the first connecting rod from top to bottom. The first input component, the first output component, the second input component, the second output component, the third input component, and the third output component are located in the same plane. The planes where the first connecting block, the second connecting block, and the third connecting block are located are different. The rotation of the first connecting rod causes at most one of the first circuit, the second circuit, and the third circuit to be connected.

[0006] Optionally, the first circuit further includes a first insulating block, the second circuit further includes a second insulating block, and the third circuit further includes a third insulating block. The first insulating block and the first connecting block form a first cylinder, and the first input component and the first output component respectively abut against the outer peripheral side of the first cylinder. The second insulating block and the second connecting block form a second cylinder, and the second input component and the second output component respectively abut against the outer peripheral side of the second cylinder. The third insulating block and the third connecting block form a third cylinder, and the third input component and the third output component respectively abut against the outer peripheral side of the third cylinder.

[0007] Optionally, a knob is also included, which is connected to one end of the first connecting rod and is located outside the housing.

[0008] Optionally, the housing is provided with three first marking portions, and the knob is provided with a second marking portion. The first marking portions are distributed around the knob. When the first circuit, the second circuit, and the third circuit are respectively connected, the second marking portions point to three different first marking portions.

[0009] Optionally, the system may also include several springs, with the springs provided between the first input component and the housing, between the first output component and the housing, between the second input component and the housing, between the second output component and the housing, between the third input component and the housing, and between the third output component and the housing.

[0010] Optionally, the housing has at least three second connecting portions at one end away from the first connecting portion. The three second connecting portions are respectively connected to the first input component, the second input component and the third input component. The end of the housing with the second connecting portions is stepped.

[0011] Optionally, a slot is provided at the bottom of the housing.

[0012] Optionally, the projections of the first connecting block, the second connecting block, and the third connecting block in the vertical direction are centrally symmetrical, and there are angles of 60° between the first connecting block, the second connecting block, and the third connecting block on the projection plane.

[0013] Another object of the present invention is to provide a single-phase power supply three-phase power distribution switching system, including a power supply unit, a power consumption unit and the above-mentioned single-phase power distribution three-phase switching switch, wherein the power consumption unit includes phase A, phase B and phase C, phase A, phase B and phase C are respectively connected to the first input component, the second input component and the third input component, and the power consumption unit is connected to the first connection part.

[0014] Optionally, it also includes a miniature circuit breaker, wherein the thickness of the housing is the same as the thickness of the miniature circuit breaker.

[0015] Compared with the prior art, implementing the embodiments of the present invention has the following beneficial effects: The single-phase power system and its single-phase distribution three-phase commutator of the present invention, in use, combine the first input component, the second input component, and the third input component with phases A, B, and C of the three-phase power supply, respectively. Connect the electrical equipment to the first connection part. Depending on the actual load of the three-phase power supply, for example, when phase A > phase B > phase C, rotate the first connecting rod so that both ends of the third connecting block are connected to the third input component and the third output component, respectively. At this time, the third circuit is connected while the first and second circuits are disconnected, allowing the electrical equipment to be connected to the phase C circuit, thereby achieving the effect of balancing the three-phase circuit. For single-phase electrical equipment such as servers, switches, lighting, various valves, and sensors in data centers, a commutator switch capable of balancing the three-phase load at the end is needed to handle the three-phase imbalance phenomenon in the system. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the single-phase power distribution three-phase phase switching switch according to an embodiment of the present invention.

[0017] Figure 2 This is a front view of the single-phase power distribution three-phase phase switching switch described in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of the first connecting block, the first insulating block, the second connecting block, the second insulating block, the third connecting block, and the third insulating block according to an embodiment of the present invention.

[0019] Figure 4 This is a top view of the housing described in an embodiment of the present invention.

[0020] Figure 5 This is a connection diagram of the single-phase power system described in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 100. Single-phase power distribution three-phase phase-changing switch, 200. Power supply unit 300. Electrical unit 400. Miniature circuit breakers 1. Housing; 11. First connecting part; 12. First marking part; 13. Second connecting part; 14. Card slot; 2. First link, 3. First circuit; 31. First input component; 32. First connecting block; 33. First output component; 34. First insulating block. 4. Second circuit; 41. Second input component; 42. Second connecting block; 43. Second output component; 44. Second insulating block. 5. Third circuit; 51. Third input component; 52. Third connecting block; 53. Third output component; 54. Third insulating block. 6. Knob; 61. Second marking section; 7. Spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first," "second," etc., are used in this invention to describe various types of information, but these terms should not be limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0025] Reference Figure 1 , Figure 2 , Figure 3and Figure 4 This embodiment provides a single-phase power system and its single-phase power distribution three-phase switching switch, including a housing 1, a first connecting rod 2, and a first circuit 3, a second circuit 4, and a third circuit 5 disposed within the housing 1. The first circuit 3 includes a first input component 31, a first connecting block 32, and a first output component 33; the second circuit 4 includes a second input component 41, a second connecting block 42, and a second output component 43; and the third circuit 5 includes a third input component 51, a third connecting block 52, and a third output component 53. The housing 1 has a first connecting part 11, and the first output component 33, the second output component 43, and the third output component 53 are all connected to the first connecting part 11. For single-phase power equipment such as servers, switches, lighting, various valves, and sensors in data centers, a switching switch capable of balancing three-phase loads at the end is needed to handle the three-phase imbalance of the system.

[0026] The first connecting block 32, the second connecting block 42, and the third connecting block 52 are fixed to the first connecting rod 2 from top to bottom. The first input component 31, the first output component 33, the second input component 41, the second output component 43, the third input component 51, and the third output component 53 are located in the same plane. The planes where the first connecting block 32, the second connecting block 42, and the third connecting block 52 are located are different. The rotation of the first connecting rod 2 causes at most one of the first circuit 3, the second circuit 4, and the third circuit 5 to be connected.

[0027] In use, the first input component 31, the second input component 41, and the third input component 51 are connected to phases A, B, and C of the three-phase power supply, respectively. The electrical equipment is then connected to the first connection part 11. Depending on the actual load of the three-phase power supply, for example, when phase A > phase B > phase C, the first connecting rod 2 is rotated so that the two ends of the third connecting block 52 are connected to the third input component 51 and the third output component 53, respectively. At this time, the third circuit 5 is connected and the first circuit 3 and the second circuit 4 are disconnected, so that the electrical equipment can be connected to the phase C circuit, thereby achieving the effect of balancing the three-phase circuit.

[0028] Better, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the first circuit 3 further includes a first insulating block 34, the second circuit 4 further includes a second insulating block 44, and the third circuit 5 further includes a third insulating block 54. The first insulating block 34 and the first connecting block 32 form a first cylinder, and the first input component 31 and the first output component 33 respectively abut against the outer peripheral side of the first cylinder. The second insulating block 44 and the second connecting block 42 form a second cylinder, and the second input component 41 and the second output component 43 respectively abut against the outer peripheral side of the second cylinder. The third insulating block 54 and the third connecting block 52 form a third cylinder, and the third input component 51 and the third output component 53 respectively abut against the outer peripheral side of the third cylinder. Taking the first circuit 3 as an example, when the first connecting rod 2 is rotated, the first input component 31, the first output component 33 are connected to the first connecting block 32, and the first circuit 3 is disconnected when the first input component 31, the first output component 33 are connected to the first insulating block 34. In addition, the side surface of the first cylinder is flat, which can prevent obstruction and poor contact during the switching process between the first connecting block 32 and the first insulating block 34. Better, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the single-phase power distribution three-phase phase-changing switch 100 also includes a knob 6, which is connected to one end of the first connecting rod 2 and is located outside the housing 1. The housing 1 has three first marking portions 12, and the knob 6 has a second marking portion 61. The first marking portions 12 are distributed around the knob 6. When the first circuit 3, the second circuit 4, and the third circuit 5 are connected, the second marking portions 61 point to three different first marking portions 12. Specifically, in this embodiment, the three first marking portions 12 are A, B, and C, respectively. The first circuit 3 is connected to phase A of the three-phase power supply, the second circuit 4 is connected to phase B of the three-phase power supply, and the third circuit 5 is connected to phase C of the three-phase power supply. When the first connecting rod 2 rotates to connect the first circuit 3, the second marking portion 61 corresponds to phase A. When the first connecting rod 2 rotates to connect the second circuit 4, the second marking portion 61 corresponds to phase B. When the first connecting rod 2 rotates to connect the third circuit 5, the second marking portion 61 corresponds to phase C.

[0029] Better, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In this embodiment, the single-phase power distribution three-phase switching switch 100 further includes several springs 7. Springs 7 are provided between the first input component 31 and the housing 1, between the first output component 33 and the housing 1, between the second input component 41 and the housing 1, between the second output component 43 and the housing 1, between the third input component 51 and the housing 1, and between the third output component 53 and the housing 1. Under the action of the springs 7, the first input component 31 and the first output component 33 are continuously in contact with the first connecting block 32 or the first insulating block 34, the second input component 41 and the second output component 43 are continuously in contact with the second connecting block 42 or the second insulating block 44, and the third input component 51 and the third output component 53 are continuously in contact with the third connecting block 52 or the third insulating block 54, thus avoiding poor contact.

[0030] Better, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the end of the housing 1 furthest from the first connecting part 11 is provided with at least three second connecting parts 13. The three second connecting parts 13 are respectively connected to the first input component 31, the second input component 41, and the third input component 51. The end of the housing 1 with the second connecting parts 13 is stepped. Specifically, in this embodiment, one second connecting part 13 is provided on the first step, so that the three second connecting parts 13 are staggered in the horizontal direction, making it easier for the three conductors of the three-phase power supply to connect to the three second connecting parts 13 respectively, thereby saving the space occupied by the single-phase power distribution three-phase phase switching switch 100.

[0031] Better, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, a slot 14 is provided at the bottom of the housing 1. The single-phase power distribution three-phase phase changer 100 can be installed on a rail or combined with other mounting components through the slot 14, which facilitates the fixing and use of the single-phase power distribution three-phase phase changer 100.

[0032] Better, refer to Figure 5 In this embodiment, the projections of the first connecting block 32, the second connecting block 42, and the third connecting block 52 in the vertical direction are centrally symmetrical, and there are angles of 60° between the first connecting block 32, the second connecting block 42, and the third connecting block 52 on the projection surface.

[0033] This embodiment also provides a single-phase power system, including a power supply unit 200, a power consumption unit 300, and the aforementioned single-phase power distribution three-phase phase-changing switch 100. The power consumption unit 300 includes phase A, phase B, and phase C, which are respectively connected to the first input component 31, the second input component 41, and the third input component 51. The power consumption unit 300 is connected to the first connection part 11.

[0034] Better, refer to Figure 5 In this embodiment, the single-phase power system also includes a miniature circuit breaker 400, and the thickness of the housing 1 is the same as the thickness of the miniature circuit breaker 400. Specifically, in this embodiment, the miniature circuit breaker 400 is a standard component, and the thickness of both the housing 1 and the miniature circuit breaker 400 is 18mm, thereby saving overall space and facilitating the installation of the single-phase power distribution three-phase switching switch 100 in existing power systems.

[0035] The single-phase power system and its single-phase power distribution three-phase switching switch provided in this embodiment are used such that phases A, B and C are connected to the first input component 31, the second input component 41 and the third input component 51 respectively through the three second connection parts 13. According to the actual load of the three-phase power, the knob 6 is rotated to connect the circuit connected to the phase with the least load, while the other two circuits are disconnected, thereby connecting the power unit 300 to the phase with the least load and achieving the effect of balancing the three-phase circuit.

[0036] The single-phase power system and its single-phase power distribution three-phase phase-changing switch of this embodiment have the following beneficial effects: In use, the first input component 31, the second input component 41, and the third input component 51 are connected to phases A, B, and C of the three-phase power supply, respectively. The electrical equipment is then connected to the first connection part 11. Depending on the actual load of the three-phase power supply, for example, when phase A > phase B > phase C, the first connecting rod 2 is rotated so that both ends of the third connecting block 52 are connected to the third input component 51 and the third output component 53, respectively. At this time, the third circuit 5 is connected while the first circuit 3 and the second circuit 4 are disconnected, allowing the electrical equipment to be connected to the C-phase circuit, thereby achieving the effect of balancing the three-phase circuit. For single-phase electrical equipment such as servers, switches, lighting, various valves, and sensors in data centers, a phase-changing switch capable of balancing three-phase loads at the end is needed to handle the three-phase imbalance phenomenon in the system.

[0037] 2. Taking the first circuit 3 as an example, when the first connecting rod 2 is rotated, the first input component 31, the first output component 33 are connected to the first connecting block 32, and the first circuit 3 is disconnected when the first input component 31, the first output component 33 are connected to the first insulating block 34. In addition, the side surface of the first cylinder is flat, which can prevent obstruction and poor contact during the switching process of the first connecting block 32 and the first insulating block 34.

[0038] Third, a second connection part 13 is provided on the first step, so that the three second connection parts 13 are staggered in the horizontal direction, making it easier for the three conductors of the three-phase power to be connected to the three second connection parts 13 respectively, thereby saving the space occupied by the single-phase power distribution three-phase phase switching switch 100.

[0039] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A single-phase power distribution three-phase commutation switch, characterized in that, The device includes a housing, a first connecting rod, and a first circuit, a second circuit, and a third circuit disposed within the housing. The first circuit includes a first input component, a first connecting block, a first insulating block, and a first output component. The second circuit includes a second input component, a second connecting block, a second insulating block, and a second output component. The third circuit includes a third input component, a third connecting block, a third insulating block, and a third output component. The housing has a first connecting portion, and the first output component, the second output component, and the third output component are all connected to the first connecting portion. The first connecting block, the second connecting block, and the third connecting block are fixed to the first connecting rod from top to bottom. The first input component, the first output component, the second input component, the second output component, the third input component, and the third output component are located in the same plane. The planes where the first connecting block, the second connecting block, and the third connecting block are located are different. The rotation of the first connecting rod causes at most one of the first circuit, the second circuit, and the third circuit to be connected. The first insulating block and the first connecting block form a first cylinder, and the first input component and the first output component respectively abut against the outer periphery of the first cylinder. The second insulating block and the second connecting block form a second cylinder, and the second input component and the second output component respectively abut against the outer periphery of the second cylinder. The third insulating block and the third connecting block form a third cylinder, and the third input component and the third output component respectively abut against the outer periphery of the third cylinder. The first input component and the first output component always maintain continuous contact with one of the first connecting block and the first insulating block. The second input component and the second output component always maintain continuous contact with one of the second connecting block and the second insulating block. The third input component and the third output component always maintain continuous contact with one of the third connecting block and the third insulating block.

2. A single phase distribution three-phase phase changing switch according to claim 1, characterized in that, It also includes a knob, which is connected to one end of the first connecting rod and is located outside the housing.

3. A single phase distribution three-phase phase changing switch according to claim 2, characterized in that, The housing has three first markings, and the knob has a second marking. The first markings are distributed around the knob. When the first circuit, the second circuit, and the third circuit are connected, the second markings point to three different first markings.

4. The single-phase power distribution three-phase commutation switch according to claim 1, characterized in that, It also includes several springs, which are provided between the first input component and the housing, between the first output component and the housing, between the second input component and the housing, between the second output component and the housing, between the third input component and the housing, and between the third output component and the housing.

5. The single-phase power distribution three-phase commutation switch according to claim 1, characterized in that, The housing is provided with at least three second connecting parts at the end away from the first connecting part. The three second connecting parts are respectively connected to the first input component, the second input component and the third input component. The end of the housing provided with the second connecting parts is stepped.

6. The single-phase power distribution three-phase commutation switch according to claim 1, characterized in that, The bottom of the housing has a slot.

7. The single-phase power distribution three-phase commutation switch according to claim 1, characterized in that, The projections of the first connecting block, the second connecting block, and the third connecting block in the vertical direction are all centrally symmetrical, and there are angles of 60° between the first connecting block, the second connecting block, and the third connecting block on the projection plane.

8. A single phase electrical power system characterized by, It includes a power supply unit, a power consumption unit, and a single-phase power distribution three-phase switching switch as described in any one of claims 1-7. The power consumption unit includes phase A, phase B, and phase C, and phase A, phase B, and phase C are respectively connected to the first input component, the second input component, and the third input component. The power consumption unit is connected to the first connection part.

9. The single-phase electrical power system of claim 8, wherein, It also includes a miniature circuit breaker, wherein the thickness of the housing is the same as the thickness of the miniature circuit breaker.

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