Three-phase power supply distribution unit

Abstract

The utility model provides a three-phase power supply distribution unit. The three-phase power supply distribution unit comprises a housing; the body is arranged on the end face of one side of the shell and forms a plug-in area with a slot, at least two plug-in groups are sequentially arranged in the plug-in area in the first direction, and each plug-in group comprises a first plug-in position, a second plug-in position and a third plug-in position; wherein a live wire pin is arranged in the slot, the live wire pin located at the first plugging position is electrically connected with the first phase line, the live wire pin located at the second plugging position is electrically connected with the second phase line, and the live wire pin located at the third plugging position is electrically connected with the third phase line.

Description

Technical Field

[0001] At least one embodiment of this utility model relates to the field of three-phase power distribution equipment, and more particularly to a three-phase power distribution unit. Background Technology

[0002] A power distribution unit (PDU) is a commonly used power management device in data centers, server rooms, and other similar locations. It is used to distribute power supplied from the power input terminal to power-consuming equipment such as servers and network devices.

[0003] Currently, three-phase power distribution units typically have several plug-in positions based on the segmentation of each phase of the live wire. This means that each plug-in position in each segment is electrically connected to the same phase of the live wire. With increasing computing power requirements, the number of electrical devices installed in a facility is also increasing. Consequently, the number of plug-in positions in three-phase power distribution units has increased accordingly. Commonly used three-phase power distribution units often have 20 or more plug-in positions, resulting in a large distance along the length of the unit between plug-in positions connected to different phases. This makes it difficult for electrical devices to insert their plugs into suitable plug-in positions, hindering convenient power access and three-phase load balancing, thus limiting the load-carrying capacity of the three-phase power distribution unit. Utility Model Content

[0004] To address at least one of the above-mentioned and other technical problems in the prior art, this utility model provides a three-phase power distribution unit so that the plugs of electrical equipment can sequentially draw power.

[0005] This utility model provides a three-phase power distribution unit, including: a housing; a body disposed on one end face of the housing and forming a plug-in area with a slot, wherein at least two plug-in groups are arranged sequentially along a first direction in the plug-in area, and each plug-in group includes a first plug-in position, a second plug-in position and a third plug-in position; wherein the slot has a live wire pin, the live wire pin located at the first plug-in position is electrically connected to the first phase line, the live wire pin located at the second plug-in position is electrically connected to the second phase line, and the live wire pin located at the third plug-in position is electrically connected to the third phase line.

[0006] According to an embodiment of the present invention, the first insertion position, the second insertion position, and the third insertion position are arranged sequentially along the first direction.

[0007] According to an embodiment of the present invention, the first insertion position, the second insertion position, and the third insertion position are arranged in random order along the first direction.

[0008] According to an embodiment of the present invention, the slot also has a neutral wire pin that is electrically connected to the neutral wire.

[0009] According to an embodiment of the present invention, the slot also has a grounding pin that is electrically connected to the ground wire.

[0010] According to an embodiment of the present invention, the slot has three sockets; wherein, one of the three sockets has the live wire pin, another has the neutral wire pin, and the third has the ground wire pin.

[0011] According to an embodiment of the present invention, it further includes: five conductive elements disposed within the housing; four of the five conductive elements are each electrically connected to one of the first phase line, second phase line, third phase line, and neutral line of the external power supply, and are electrically connected to the live wire pin or the neutral wire pin of at least two of the plug groups; the other of the five conductive elements is electrically connected to the housing; wherein the housing is made of conductive material.

[0012] According to an embodiment of the present invention, at least one of the above-mentioned live wire pin, the above-mentioned neutral wire pin, and the above-mentioned ground wire pin has a connection end, and the above-mentioned conductive element is mechanically connected to and electrically connected to the above-mentioned connection end.

[0013] According to an embodiment of the present invention, the conductive element is configured as a rod-shaped structure and extends along the first direction; the connecting end extends along a second direction forming an angle with the first direction.

[0014] According to an embodiment of the present invention, the second direction is orthogonal to the first direction, and the connecting end is configured as a sheet structure.

[0015] According to an embodiment of the present invention, the connecting end has a through hole, and the conductive element passes through the through hole; wherein the area of ​​the through hole is configured to be greater than or equal to the cross-sectional area of ​​the conductive element.

[0016] As shown in the illustrative embodiment of this utility model, each plug group in the plug-in area has a first plug position electrically connected to the first phase line, a second plug position electrically connected to the second phase line, and a third plug position electrically connected to the third phase line. That is, the three plugs of the same electrical device can be inserted into the three plug positions of the same plug group to form electrical connections with the first, second, and third phase lines respectively, while the three plugs of another electrical device can be inserted into the three plug positions of the next plug group to draw power. This allows electrical devices to conveniently draw power from nearby locations, thus shortening the cable length of the plugs, and eliminates the need for deliberately evenly distributing the plugs, thereby improving ease of use and fault tolerance, and allowing for more efficient utilization of the rated power of the three-phase power distribution unit. Attached Figure Description

[0017] Figure 1 The diagram schematically shows a front view of a three-phase power distribution unit according to an embodiment of the present invention;

[0018] Figure 2 The schematic diagram illustrates the wiring principle of a three-phase power distribution unit according to an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 A magnified view of part A;

[0020] Figure 4 yes Figure 1 The diagram shows a first cross-section of the three-phase power distribution unit.

[0021] Figure 5 yes Figure 1 The diagram shows a second cross-section of the three-phase power distribution unit.

[0022] Figure 6 yes Figure 1 The diagram shows the third cross-section of the three-phase power distribution unit.

[0023] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0024] 1. Shell;

[0025] 2. Ontology;

[0026] 3. Connector assembly;

[0027] 31. First insertion position;

[0028] 32. Second insertion position;

[0029] 33. Third insertion position;

[0030] 4. Slots;

[0031] 41. First socket;

[0032] 42. Second socket;

[0033] 43. Third socket;

[0034] 5. Pin;

[0035] 51. Live wire pin;

[0036] 52. Grounding pin;

[0037] 53. Neutral wire pin;

[0038] 54. Through hole;

[0039] 6. Conductive components;

[0040] 61. Live wire conductive components;

[0041] 611. First live wire conductive component;

[0042] 612. Second live wire conductive component;

[0043] 613. Third live wire conductive component;

[0044] 62. Grounding conductor;

[0045] 63. Neutral wire conductive component. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0047] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0048] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0049] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0050] Three-phase power distribution units are widely used in power management devices commonly found in data centers, server rooms, and other locations (such as for 380V power management). They are suitable for distributing power supplied from the power input terminal to power-consuming equipment such as servers and network devices. Currently, three-phase power distribution units are mostly configured with several plug-in positions based on the segmentation of each phase of the live wire. That is, the plug-in position in each segment is electrically connected to the same phase of the live wire.

[0051] For example, a three-phase power distribution unit has 30 plug positions. The first 10 plug positions are connected to the first phase, the middle 10 are connected to the second phase, and the last 10 are connected to the third phase. When one device draws power from the three-phase power distribution unit, the three plugs must be inserted into plug positions 01, 11, and 21 respectively. When the next device draws power from the same device, the three plugs must be inserted into plug positions 02, 12, and 22 respectively. And so on, the three plugs of the same device must be inserted at intervals of 10 plug positions.

[0052] This necessitates designing the power extraction points for the electrical equipment plugs. To ensure the cables connected to the plugs are of as uniform length as possible, the cables need to be relatively long. Furthermore, because the plug positions are spaced apart across different sections, the intervals between each plug position must be counted when inserting the plug, posing a risk of errors (such as connecting two plugs of the same electrical equipment to the same phase line). Additionally, this arrangement of plug positions limits the length of the three-phase power distribution unit (e.g., with 60 plug positions, each section has 20 positions, requiring the plugs of electrical equipment to be inserted at 20 intervals, resulting in excessively long cables and tangling of different cables within the same section), thus limiting the load-bearing capacity of the three-phase power distribution unit.

[0053] Figure 1The diagram schematically shows a front view of a three-phase power distribution unit according to an embodiment of the present invention. Figure 2 The schematic diagram illustrates the wiring principle of a three-phase power distribution unit according to an embodiment of the present invention.

[0054] To illustrate the following embodiments of the present invention in conjunction with the accompanying drawings, the following description is provided: Figure 1 Define a first direction and a second direction. The first direction is characterized by the length direction of shell 1, i.e., as shown below. Figure 1 The X direction is shown, and the second direction represents the width direction of shell 1, that is, as shown. Figure 1 The Y direction is shown. Unless otherwise stated, the first and second directions can be understood in this way in the following embodiments.

[0055] This utility model provides a three-phase power distribution unit, such as Figure 1 and Figure 2 As shown, the device includes a housing 1 and a body 2. The body 2 is disposed on one end face of the housing 1 and forms a plug-in area with a slot 4. At least two plug-in groups 3 are arranged sequentially along a first direction in the plug-in area. Each plug-in group 3 includes a first plug-in position 31, a second plug-in position 32, and a third plug-in position 33. The slot 4 has a live wire pin 51. The live wire pin 51 located at the first plug-in position 31 is electrically connected to the first phase line, the live wire pin 51 located at the second plug-in position 32 is electrically connected to the second phase line, and the live wire pin 51 located at the third plug-in position 33 is electrically connected to the third phase line.

[0056] In some illustrative embodiments, such as Figure 1 and Figure 2 As shown, the housing 1 includes, but is not limited to, a structure configured as a generally rectangular parallelepiped, with a body 2 disposed on one side of the housing 1. Specifically, the body 2 includes a plurality of socket modules, wherein each socket module is characterized as a module that can be detachably connected to a plug of an external electrical device, and when the plug is connected to the socket module, the electrical device can be electrically connected to an external power source to draw power from that power source.

[0057] In this implementation, each plug group 3 in the plugging area has a first plug position 31 electrically connected to the first phase line, a second plug position 32 electrically connected to the second phase line, and a third plug position 33 electrically connected to the third phase line. That is, the three plugs of the same electrical device can be inserted into the three plug positions of the same plug group 3 to form electrical connections with the first, second, and third phase lines respectively, while the three plugs of another electrical device can be inserted into the three plug positions of the next plug group 3 to draw power. Since the three plug positions in the same plug group 3 are adjacent, the cables configured for the electrical devices can be shorter, and the cables configured for different electrical devices will not cross. This shortens the cable length of the plugs and eliminates the need to deliberately arrange the plugs evenly, thus improving convenience. Furthermore, since the plugs of the electrical devices are arranged adjacently, there is no need to count the intervals between plug positions as in the prior art, reducing the likelihood of incorrect insertion and improving fault tolerance.

[0058] According to some embodiments of this utility model, such as Figure 1 and Figure 2 As shown, the first insertion position 31, the second insertion position 32 and the third insertion position 33 are arranged sequentially along the first direction.

[0059] In some illustrative embodiments, such as Figure 1 As shown, the housing 1 extends along a first direction (X direction), and a plurality of plug-in groups 3 are sequentially arranged along the first direction. Each plug-in group 3 has a plug-in group along one end of the housing 1 (e.g., Figure 1 The upper end shown) to the other end (as shown) Figure 1 The first plug-in position 31, the second plug-in position 32, and the third plug-in position 33 are arranged in sequence at the lower end of the plug-in group 3, that is, the first plug-in position 31 is located at the upper part of the plug-in group 3, the second plug-in position 32 is located at the middle part of the plug-in group 3, and the third plug-in position 33 is located at the lower part of the plug-in group 3.

[0060] According to some other embodiments of the present invention, the first insertion position 31, the second insertion position 32 and the third insertion position 33 are arranged in random order along the first direction.

[0061] In some illustrative embodiments, reference may continue to be made to... Figure 1 The housing 1 shown extends along the first direction (X direction), and a plurality of plug-in groups 3 are sequentially arranged along the first direction. However, unlike the above embodiment, each plug-in group 3 has a portion extending along one end of the housing 1 (e.g., ...). Figure 1 The upper end shown) to the other end (as shown) Figure 1 The three plug positions (as shown at the lower end) are arranged in random order.

[0062] For example, the first plug position 31 is located at the upper part of the plug group 3, the third plug position 33 is located at the middle part of the plug group 3, and the second plug position 32 is located at the lower part of the plug group 3.

[0063] For example, the second plug position 32 is located at the upper part of the plug group 3, the first plug position 31 is located at the middle part of the plug group 3, and the third plug position 33 is located at the lower part of the plug group 3.

[0064] For example, there are three other random arrangement methods besides the sequential arrangement methods mentioned above.

[0065] In other words, according to the above embodiments, the three plug positions (i.e., the first plug position 31, the second plug position 32 and the third plug position 33) in the plug group 3 can be either out of order or in sequence, and the order of the three plug positions in different plug groups 3 can be the same or different.

[0066] In this implementation, the arrangement order of the first plug-in position 31, the second plug-in position 32, and the third plug-in position 33 in the plug-in group 3 can be configured according to the shape and / or position of the conductive element 6 provided in the three-phase power distribution unit (which will be described in the following embodiments) to facilitate installation and / or reduce the material required to manufacture the conductive element 6. Furthermore, the arrangement order of the first plug-in position 31, the second plug-in position 32, and the third plug-in position 33 in the plug-in group 3 also needs to be designed based on the configured electrical equipment.

[0067] In a three-phase AC system, the three phases are balanced, and three-phase loads (such as three-phase motors and other electrical equipment) can operate in any sequence. Therefore, it is sufficient to ensure that the plugs of the same electrical equipment are connected to the first plug position 31, the second plug position 32, and the third plug position 33 within the same plug group 3. However, for some specific usage scenarios, such as when the phase sequence is crucial for the operation of the electrical equipment (e.g., certain control systems or electrical equipment that needs to be controlled in a specific sequence), it is necessary to distinguish the order of the three phase lines. In this usage scenario, the first plug position 31, the second plug position 32, and the third plug position 33 in each plug group 3 should be set sequentially along the first direction, and this sequence can be marked in the plug group (e.g., L1, L2, and L3) to guide the user to plug the corresponding plugs into the appropriate positions to ensure correct connection.

[0068] Figure 3 yes Figure 2 A magnified view of part A.

[0069] According to embodiments of the present invention, such as Figure 2 and Figure 3As shown, slot 4 also has a neutral pin 53 that is electrically connected to the neutral wire.

[0070] According to embodiments of the present invention, such as Figure 2 and Figure 3 As shown, slot 4 also has a ground pin 52 that is electrically connected to the ground wire.

[0071] According to embodiments of the present invention, such as Figure 2 and Figure 3 As shown, slot 4 has three sockets. One of the three sockets has a live wire pin 51, another has a neutral wire pin 53, and the third has a ground wire pin 52.

[0072] In some illustrative embodiments, such as Figure 2 and Figure 3 As shown, each socket module of the main body 2 has a slot 4, and each slot 4 includes a first socket 41, a second socket 42, and a third socket 43. Specifically, a live wire pin 51 is provided in the first socket 41, and this live wire pin 51 connects to the first phase wire (e.g., ...). Figure 2 and Figure 3 As shown in L1), the second socket 42 is provided with a ground pin 52, which is connected to the ground wire (also known as the protective earth, or PE); the third socket 43 is provided with a neutral pin 53, which is connected to the neutral wire (also known as the center wire or neutral line, or N).

[0073] It should be noted that, corresponding to the socket module being set in different plug-in positions (i.e., first plug-in position 31, second plug-in position 32, and third plug-in position 33), the aforementioned live wire pin 51 can also be connected to the second phase wire (e.g., Figure 2 The L2) electrical connection shown is shown, or the live wire pin 51 can also be connected to the third phase wire (such as...). Figure 2 The L3 electrical connection is shown.

[0074] In some illustrative implementations, the first socket 41, the second socket 42, and the third socket 43 provided in the slot 4 are, but are not limited to, rectangular holes, square holes, parallelogram holes, circular holes, and other arbitrary shapes of holes and combinations thereof, and should be configured according to the corresponding voltage, frequency, and safety standards.

[0075] Figure 4 yes Figure 1 The diagram shows a first cross-section of a three-phase power distribution unit. Figure 5 yes Figure 1 The diagram shows the second cross-section of the three-phase power distribution unit. Figure 6 yes Figure 1 The diagram shows the third cross-section of the three-phase power distribution unit.

[0076] According to embodiments of the present invention, such as Figures 4 to 6 As shown, at least one of the live wire pin 51, neutral wire pin 53 and ground wire pin 52 has a connection terminal, and the conductive element 6 is mechanically and electrically connected to the connection terminal.

[0077] According to embodiments of the present invention, such as Figures 4 to 6 As shown, the second direction is orthogonal to the first direction, and the connecting end is configured as a sheet structure.

[0078] In some illustrative implementations, such as Figures 4 to 6 As shown, the pins 5 (i.e., live wire pin 51, ground wire pin 52, and neutral wire pin 53) disposed in the slot 4 (i.e., the socket of the slot 4) include, but are not limited to, conductive sheets made of conductive materials. Specifically, the pins 5 have contact ends and connection ends. The contact ends include, but are not limited to, forming sheet-like or cylindrical contacts. These contact ends are suitable for tightly pressing against the conductive part of the plug when the plug of the electrical device is inserted, to form a mechanical and electrical connection. Furthermore, the connection end extends from the slot 4 and extends into the housing 1 to connect to the conductive element 6 described below. The conductive sheets include, but are not limited to, those made of copper, silver, nickel, and alloy materials.

[0079] It should be noted that the shape and material of the conductive sheet are not the key points of protection of this utility model. Any conductive sheet that can be used in sockets and (three-phase) power distribution units in this field can be selected and applied, and will not be elaborated further.

[0080] According to embodiments of the present invention, such as Figures 4 to 6 As shown, the three-phase power distribution unit also includes five conductive elements 6. The five conductive elements 6 are disposed within the housing 1. Four of the five conductive elements 6 are each electrically connected to one of the first phase line, second phase line, third phase line, and neutral line of the external power supply, and are electrically connected to either the live wire pin 51 or the neutral wire pin 53 of at least two plug groups 3. The remaining conductive element 6 is electrically connected to the housing 1. The housing 1 is made of a conductive material.

[0081] According to embodiments of the present invention, such as Figures 4 to 6 As shown, the conductive element 6 is configured as a rod-shaped structure and extends along a first direction. The connecting end extends along a second direction forming an angle with the first direction.

[0082] According to embodiments of the present invention, such as Figures 4 to 6 As shown, the connecting end of the conductive element 6 has a through hole 54, and the conductive element 6 passes through the through hole 54. The area of ​​the through hole 54 is configured to be greater than or equal to the cross-sectional area of ​​the conductive element 6.

[0083] In some illustrative embodiments, such as Figures 4 to 6 As shown, the conductive element 6 includes a live wire conductive element 61, a ground wire conductive element 62, and a neutral wire conductive element 63. Specifically, the live wire conductive element 61 further includes a first live wire conductive element 611, a second live wire conductive element 612, and a third live wire conductive element 613. That is, the three-phase power distribution unit has five conductive elements 6.

[0084] In some illustrative embodiments, such as Figures 4 to 6 As shown, the five conductive components 6 are generally parallel to each other. Generally parallel to each other means that the five conductive components 6 generally extend along the first direction (X direction), but at some local locations there may be bends extending along a direction that forms an angle with the first direction (such as the second direction or other directions). These bends are mainly for the purpose of facilitating proximity to other parts (such as the aforementioned pins 5 and wires) to form mechanical and electrical connections.

[0085] In some illustrative embodiments, the three-phase power distribution unit also includes a cable electrically connected to an external power source, or it may have terminals for connecting the cable to facilitate external cable access. The aforementioned cable or terminals are respectively and electrically connected to the live wire conductor 61 and the neutral wire conductor 63. Furthermore, the housing 1 is made of, but is not limited to, aluminum, copper, stainless steel, iron, and other conductive materials. The ground wire conductor 62 is connected to the housing 1 and grounds the three-phase power distribution unit to protect the safety of the electrical equipment and prevent electric shock accidents.

[0086] In some illustrative embodiments, such as Figures 4 to 6 As shown, at least some of the five conductive elements 6 are configured as rod-shaped structures, specifically cylindrical rods, rectangular rods, elliptical rods, and polygonal prism rods. More specifically, these conductive elements 6 are made of, but are not limited to, copper, aluminum, silver, alloys including copper, aluminum, and silver, and other conductive materials. Furthermore, the five conductive elements 6 can be designed as continuous; compared to using flexible cable connections, using rod-shaped conductive elements can reduce connection points, thereby simplifying the wiring structure.

[0087] Continue to refer to Figures 4 to 6 , Figure 4 The first cross-section is shown in the first insertion position. Figure 5 The second cross-section is shown in the second insertion position. Figure 6 The third section is shown in the third insertion position.

[0088] In some illustrative embodiments, such as Figure 4As shown, the socket module located at the first plug-in position 31 has a live wire pin 51, a ground wire pin 52, and a neutral wire pin 53. The connection end of the live wire pin 51 is electrically connected to the first live wire conductor 611, the connection end of the ground wire pin 52 is electrically connected to the ground wire conductor 62, and the connection end of the neutral wire pin 53 is electrically connected to the neutral wire conductor 63. Specifically, the connection ends of the aforementioned pins 5 extend along the second direction (Y direction) and form a sheet-like structure. Furthermore, the center of this sheet-like structure has a through hole 54, and a conductor 6 corresponding to the through hole 54 passes through the corresponding through hole.

[0089] Reference Figure 5 and Figure 6 As shown, in some illustrative embodiments, the live wire pin 51 located at the second plug position 32 is electrically connected to the second live wire conductor 612, and the live wire pin 51 located at the third plug position 33 is electrically connected to the third live wire conductor 613. Other aspects are similar to those in the above embodiments, and therefore will not be described in detail.

[0090] In this implementation, the connection method between the neutral wire pin 53 and the neutral conductor 63, and between the ground wire pin 52 and the ground conductor 62, is the same in each plug-in position within the same plug group 3 and in each plug-in position of different plug groups 3. That is, each neutral wire pin 53 is connected to the same neutral conductor 63, and each ground wire pin 52 is connected to the same ground conductor 62. This allows for a modular design, further simplifying the wiring. Different live wire pins 51 are electrically connected to the corresponding live conductor 61 at intervals according to the phase wires that need to be connected. For example, if each plug group 3 is arranged sequentially according to the first plug position 31, the second plug position 32, and the third plug position 33, then the live wire pins 51 in different plug groups 3 are electrically connected to the same live conductor 61 at intervals of two plug positions.

[0091] In some illustrative embodiments, such as Figures 4 to 6 As shown, the shape and size of the through hole 54 are configured to match the radial cross-sectional area of ​​the conductive element 6.

[0092] For example Figures 4 to 6As shown, taking a circular through-hole 54 and a cylindrical conductive element 6 as examples, the inner diameter of the through-hole 54 is slightly larger than the outer diameter of the conductive element 6, specifically by 0.5 mm, 1 mm, 1.5 mm, 2 mm, or any other arbitrary size. This allows the conductive element 6 to easily pass through the through-hole to form a connection. Furthermore, to ensure a good electrical connection between the conductive element 6 and the through-hole 54, the gap between them can be filled with solder (such as solder), thus forming a good weld relationship between the conductive element 6 and the through-hole 54 and controlling the temperature rise at the connection point within a reasonable range. The cross-sectional area of ​​the conductive element 6 includes, but is not limited to, the rated value of the input current required by the three-phase power distribution unit. It should be understood that the embodiments of this utility model are not limited to this.

[0093] For example, the three-phase power distribution unit can also be equipped with various indicator lights to display the power consumption status of the three-phase power distribution unit.

[0094] For example, the three-phase power distribution unit can also be configured with measurement, protection and other functional modules.

[0095] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.

[0096] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.

Claims

1. A three-phase power distribution unit, characterized in that, include: Shell (1); The body (2) is disposed on one side end face of the housing (1) and forms a plug-in area with a slot (4). The plug-in area is arranged in sequence along the first direction with at least two plug-in groups (3). Each plug-in group (3) includes a first plug-in position (31), a second plug-in position (32) and a third plug-in position (33). The slot (4) has a live wire pin (51). The live wire pin (51) located at the first plug position (31) is electrically connected to the first phase line, the live wire pin (51) located at the second plug position (32) is electrically connected to the second phase line, and the live wire pin (51) located at the third plug position (33) is electrically connected to the third phase line.

2. The three-phase power distribution unit according to claim 1, characterized in that, The first insertion position (31), the second insertion position (32) and the third insertion position (33) are arranged sequentially along the first direction.

3. The three-phase power distribution unit according to claim 1, characterized in that, The first plug-in position (31), the second plug-in position (32) and the third plug-in position (33) are arranged in random order along the first direction.

4. The three-phase power distribution unit according to any one of claims 1 to 3, characterized in that, The slot (4) also has a neutral wire pin (53) that is electrically connected to the neutral wire.

5. The three-phase power distribution unit according to claim 4, characterized in that, The slot (4) also has a ground pin (52) that is electrically connected to the ground wire.

6. The three-phase power distribution unit according to claim 5, characterized in that, The slot (4) has three sockets; Of the three sockets, one has the live wire pin (51), another has the neutral wire pin (53), and the third has the ground wire pin (52).

7. The three-phase power distribution unit according to claim 5, characterized in that, Also includes: Five conductive elements (6) are disposed inside the housing (1); Four of the five conductive elements (6) are each electrically connected to one of the first phase line, second phase line, third phase line and neutral line of the external power supply, and are electrically connected to the live wire pin (51) or the neutral wire pin (53) of at least two of the plug groups (3), and the other conductive element (6) is electrically connected to the housing (1). The housing (1) is made of a conductive material.

8. The three-phase power distribution unit according to claim 7, characterized in that, At least one of the live wire pin (51), the neutral wire pin (53), and the ground wire pin (52) has a connection end, and the conductive element (6) is mechanically and electrically connected to the connection end.

9. The three-phase power distribution unit according to claim 8, characterized in that, The conductive element (6) is configured as a rod-shaped structure and extends along the first direction; The connecting end extends along a second direction that forms an angle with the first direction.

10. The three-phase power distribution unit according to claim 9, characterized in that, The second direction is orthogonal to the first direction, and the connecting end is configured as a sheet structure.

11. The three-phase power distribution unit according to any one of claims 8 to 10, characterized in that, The connecting end has a through hole (54), and the conductive element (6) passes through the through hole (54); The area of ​​the through hole (54) is configured to be greater than or equal to the cross-sectional area of ​​the conductive element (6).

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