Power distribution module

Abstract

The utility model discloses a power distribution module, which relates to the technical field of electrical engineering, and comprises at least two power distribution units and a first busbar, the at least two power distribution units are stacked and arranged at intervals, each power distribution unit is provided with a confluence terminal, the confluence terminal is bent to form a connecting part, and the connecting part is connected with the first busbar. The first busbar is connected with the connecting part of one confluence terminal of each power distribution unit through a connecting piece, and the connecting piece and the relays on the power distribution units are arranged in a staggered manner; in the technical scheme provided by the utility model, the connecting part of the confluence terminal and the relay in the power distribution unit are arranged in a staggered manner along the stacking direction of the power distribution unit, so that the connecting piece can be ensured not to interfere with the relay even if the connecting piece penetrates out of the connecting part in the installation process, thereby avoiding the puncture of the relay and causing potential safety hazards. By bending the confluence terminal, a part of the confluence terminal is located below the circuit board, so that the rationality of the structure of the device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to a power distribution module. Background Technology

[0002] A power distribution module is an electronic device used for efficient management and distribution of power, widely used in automotive, industrial automation, communication base stations, and data centers. It provides a stable power supply to different devices by distributing input power to multiple output ports, and features overload protection, short-circuit protection, and voltage monitoring to ensure system safety and reliability. Its compact design and multiple installation methods allow it to adapt to various application scenarios, providing efficient and reliable power support for modern electronic systems.

[0003] In related technologies, the power distribution module has multiple distribution units. Each distribution unit is connected to the busbar through its bus terminal. The bus terminal has an overall U-shaped structure and a connection hole is provided on the surface of the bus terminal that is parallel to the relay. The connection hole is set opposite to the relay on the power distribution module.

[0004] Bolts are inserted through the connection holes to secure the busbar. However, since the connection holes are directly opposite the relays, there is a risk that the bolts may interfere with the relays during installation, potentially puncturing them. Utility Model Content

[0005] The main purpose of this utility model is to propose a power distribution module that has a more reasonable structure, is safer to use, and does not interfere with each other.

[0006] To achieve the above objectives, the power distribution module proposed in this utility model includes:

[0007] A power distribution unit, comprising at least two stacked and spaced apart, each power distribution unit having a bus terminal, the bus terminal being bent to form a connection portion; and

[0008] A first busbar is connected to the connection portion of a bus terminal of each of the power distribution units via a connector, and the connector is offset from a relay on the power distribution unit.

[0009] In one embodiment, the power distribution unit further includes a circuit board, at least two of the relays are disposed on the circuit board, and the at least two relays are electrically connected via a second bus, which is disposed on the circuit board.

[0010] In one embodiment, the bus terminal is disposed on the circuit board, and each of the relays is correspondingly disposed with one of the bus terminals.

[0011] In one embodiment, the first bus and the second bus are located on opposite sides of the relay.

[0012] In one embodiment, the distance between the top surface of the second busbar and the bottom surface of the adjacent circuit board is greater than or equal to 15 mm.

[0013] In one embodiment, each of the circuit boards is provided with a connector facing the side of the circuit board adjacent to the first busbar.

[0014] In one embodiment, the bus terminal further includes a mounting portion, one end of which is connected to the connecting portion and the mounting portion is disposed at an angle to the connecting portion, and the mounting portion is soldered to the circuit board of the power distribution unit.

[0015] In one embodiment, the connecting portion has a first connecting hole, the first busbar has a second connecting hole, the first connecting hole and the second connecting hole are coaxially arranged, and the connector passes through the first connecting hole and the second connecting hole;

[0016] The first connection hole and the relay are offset from each other along the stacking direction of the power distribution unit.

[0017] In one embodiment, the first connecting hole is configured as a through hole or a threaded hole.

[0018] In one embodiment, the mounting portion is provided with a plurality of solder pads, and the bus terminal is soldered to the circuit board through the plurality of solder pads.

[0019] This utility model proposes a power distribution module, including power distribution units and a first bus. Multiple power distribution units are each equipped with several bus terminals, which are connected to the first bus. The first bus then connects to an external circuit. The bus terminals are bent to form a connecting portion, which is offset from the relays within the power distribution units along the stacking direction of the power distribution units. The connecting portion serves to fix the connecting parts. When the connecting portion and the relays are offset, it ensures that even if the connecting parts protrude through the connecting portion during installation, they will not interfere with the relays, preventing relay puncture and potential safety hazards. By bending the bus terminals, a portion of their structure is located below the circuit board, thus ensuring the rationality of the device structure. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the power distribution module provided by this utility model;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 for Figure 1 Schematic diagram of the medium power distribution unit;

[0024] Figure 4 for Figure 3 A schematic diagram of the medium power distribution unit from another angle;

[0025] Figure 5 for Figure 3 A schematic diagram of the structure of the bus terminal.

[0026] Explanation of icon numbers:

[0027] 100. Power distribution module; 1. Power distribution unit; 11. Relay; 12. Circuit board; 13. Second busbar; 14. Connector; 2. First busbar; 21. Second connection hole; 3. Busbar terminal; 31. Connection part; 32. Mounting part; 33. Solder foot; 3a. First connection hole; 4. Connector.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] In related technologies, the power distribution module 100 has multiple distribution units, each of which is connected to a busbar via its bus terminal 3. The bus terminal 3 has a U-shaped structure and a connection hole is provided on the surface of the bus terminal 3 parallel to the relay 11. The connection hole is positioned directly opposite the relay 11 on the power distribution module 100. Bolts are inserted through the connection hole to fix it to the busbar. However, since the connection hole is directly opposite the relay 11, there is a risk that the bolt may interfere with the relay 11 during installation, potentially puncturing the relay 11.

[0033] To address the aforementioned problems, this utility model proposes a power distribution module 100, aiming to provide a power distribution module 100 with a more reasonable structure, safer use, and no interference between its components. Figures 1 to 5 This is a schematic diagram of an embodiment of the power distribution module 100 of this utility model.

[0034] Please refer to Figures 1 to 5 This utility model proposes a power distribution module 100, including a power distribution unit 1 and a first bus 2. At least two power distribution units 1 are stacked and spaced apart. Each power distribution unit 1 is provided with a bus terminal 3. The bus terminal 3 is bent to form a connecting part 31. The first bus 2 is connected to the connecting part 31 of a bus terminal 3 of each power distribution unit 1 through a connector 4. The connector 4 is offset from the relay 11 on the power distribution unit 1.

[0035] It should be noted that each power distribution unit 1 includes multiple relays 11, which can control the on / off state of multiple external circuits. There can be two or more power distribution units 1; this application does not limit this. In the technical solution of this application, there are five power distribution units 1, which are evenly spaced along the height of the power distribution module 100. The number of power distribution units 1 is adaptively adjusted according to the power distribution needs and the number of devices in the actual application scenario. For example, in complex systems that require controlling the on / off state of more external circuits, the number of power distribution units 1 will be increased to meet the independent power supply and management needs of multiple devices; while in relatively simple systems, the number of power distribution units 1 can be reduced to lower costs and complexity. This flexible adjustment method ensures that the power distribution module 100 can efficiently meet power distribution tasks of different scales and complexities, while maintaining the simplicity and reliability of the system.

[0036] This utility model proposes a power distribution module 100, including a power distribution unit 1 and a first busbar 2. Multiple power distribution units 1 are each provided with several bus terminals 3, which are connected to the first busbar 2 and then connected to an external circuit via the first busbar 2. The bus terminals 3 are bent to form a connecting portion 31. This connecting portion 31 is offset from the relay 11 in the power distribution unit 1 along the stacking direction of the power distribution unit 1. The function of the connecting portion 31 is to fix the connecting piece 4. When the connecting portion 31 and the relay 11 are offset, it ensures that even if the connecting piece 4 protrudes through the connecting portion 31 during installation, it will not interfere with the relay 11, preventing puncture of the relay 11 and potential safety hazards. By bending the bus terminals 3, a portion of their structure is located below the circuit board 12, thus ensuring the rationality of the device structure.

[0037] Furthermore, by placing the connection holes on the connection portion 31 in the gap area between the relay 11 and the upper circuit board 12, the connector 4 can be installed from both sides of the busbar. That is, the connector 4 can be installed from the side of the busbar facing away from the relay 11 or from the side of the busbar facing the relay 11. The specific installation method can be adapted to the ease of construction. It should be noted that the connector 4 can be a snap-fit, which is U-shaped and passes through the first connection hole 3a and the second connection hole 21 in sequence, and abuts against the connection portion 31 of the busbar and the bus terminal 3 respectively, thereby fixing the two. The connector 4 can also be a bolt, which screws the two together. This application does not limit this. In one embodiment of this application, the connector 4 is a bolt. The bolt connection has high strength and can ensure a firm connection between the bus terminal 3 and the busbar. It can remain stable even in high current or vibration environments, thereby improving the reliability of the entire power distribution module 100. Secondly, the bolt connection is easy to install and disassemble. Maintenance personnel can easily assemble, inspect and repair the module, reducing maintenance time and costs. Furthermore, the bolted connection offers high adjustment flexibility, allowing for adjustments to the tightness according to actual needs, ensuring a tight connection and reliable contact, and further optimizing power transmission efficiency. Circuit board 12 has a connector 14 on the side adjacent to the first busbar 2, enabling it to receive external power, communicate with other circuit boards, or control external devices. The connector 14 facilitates the integration of circuit board 14 into larger systems, enabling modular design and functional expansion. This design not only improves system flexibility and maintainability but also facilitates the replacement or upgrading of circuit boards when needed, without rewiring or modifying the entire system architecture.

[0038] It is understood that the bus terminal 3 consists of two parts: a connecting part 31 and a mounting part 32. The connecting part 31 and the mounting part 32 are connected together. The connecting part 31 is used to connect to the first busbar 2, and the mounting part 32 is used to mount the bus terminal 3 onto the corresponding circuit board 12. For details, please refer to further documentation. Figure 1 and Figure 2 By bending the connecting portion 31, it can be ensured that the extended portion of the connecting member 4 will not interfere with the relay 11 when connected to the connecting portion 31. It should be noted that the connecting portion 31 can be bent upwards along the stacking direction of the power distribution unit 1, or it can be bent downwards along the stacking direction of the power distribution unit 1. This application does not limit this. For details regarding the downward bending of the connecting portion 31, please refer to further reference. Figure 3By creating a first connecting hole 3a in the downwardly bent connecting portion 31, when the connector 4 protrudes through the first connecting hole 3a, the protruding part can be reasonably accommodated in the gap area between the lower relay 11 and the upper circuit board 12, thereby preventing the connector 4 from puncturing the relay 11 and causing equipment damage. Furthermore, the connecting portion 31 can also be bent upwards; for details, please refer to further documentation. Figure 4 The upwardly bent connecting part 31 needs to be designed to be longer than the downwardly bent connecting part 31, so as to ensure that it spans the relay 11 set on the same layer circuit board 12. Its height needs to be at least greater than the height of the relay 11. The first connecting hole 3a on the connecting part 31 is opened above the relay 11. The gap area between the same layer relay 11 and the upper layer relay 11 is used to realize the accommodation of the connector 4, and the space structure of the power distribution module 100 is reasonably utilized.

[0039] It should be noted that the first connecting hole 3a can be a through hole or a threaded hole, and this application does not limit it. In one embodiment of this application, both the first connecting hole 3a and the second connecting hole 21 are configured as through holes. For details, please refer to further reading. Figure 1 and Figure 3 In this embodiment, the connector 4 is a bolt, which is sequentially inserted into the first connecting hole 3a and the second connecting hole 21. During processing, the inner diameter of the first connecting hole 3a and the second connecting hole 21 can be increased to be larger than the outer diameter of the bolt, so that the bolt can be more easily assembled into the first connecting hole 3a and the second connecting hole 21.

[0040] To achieve efficient current distribution among the relays 11, a second bus 13 is provided on the upper surface of the circuit board 12. The second bus 13 is connected to multiple relays 11 on the circuit board 12. By connecting multiple relays 11 together, the second bus 13 forms a low-resistance current distribution path, thereby ensuring that the current can be stably and evenly distributed to each relay 11. This design not only improves the reliability of the circuit and reduces heat loss and voltage drop caused by uneven current transmission, but also enhances the overall performance and safety of the circuit. In addition, the second bus 13 simplifies the wiring of the circuit board 12, making the circuit structure more compact and neat, and facilitating maintenance and management.

[0041] To ensure the good electrical safety and insulation performance of the power distribution module 100, when designing the spacing between multiple power distribution units 1, the distance between the top surface of the second busbar 13 located on the upper surface of the circuit board 12 and the lower surface of the upper circuit board 12 should be at least 15mm. This ensures sufficient electrical clearance and creepage distance, thereby preventing arcing and creepage, improving insulation performance, providing mechanical protection, promoting heat dissipation, and meeting industry standards and specifications. These measures can effectively improve the safety and reliability of electrical equipment and reduce the risk of accidents.

[0042] In the technical solution of this application, the mounting portion 32 of the bus terminal 3 is attached to the circuit board 12, which is beneficial for heat dissipation. Multiple solder pads 33 are provided on one side of the mounting portion 32. For details, please refer to further reference. Figure 5 The soldered connection provides a reliable electrical connection, ensuring stable current transmission and low resistance, thereby reducing energy loss and voltage drop. The contact design between the solder pad 33 and the circuit board 12 facilitates heat conduction and dissipation. Through the heat dissipation path of the circuit board 12, the operating temperature of the bus terminal 3 can be effectively reduced, improving its heat dissipation efficiency and extending its service life. In addition, the soldering process is simple and low-cost, which can improve production efficiency. At the same time, the strong solder joint makes the bus terminal 3 more stably fixed on the circuit board 12, enhancing the mechanical strength and reliability of the entire circuit system.

[0043] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A power distribution module, characterized by, The utility model relates to a power distribution unit (1), at least two power distribution units (1) are stacked and spaced, each power distribution unit (1) is equipped with bus terminal (3), and the bus terminal (3) is bent to form connecting part (31);And First busbar (2), first busbar (2) is connected with the connecting part (31) of the bus terminal (3) of each power distribution unit (1) through connecting piece (4), and the connecting piece (4) is arranged in the position of the relay (11) on the power distribution unit (1). The power distribution unit (1) further comprises a circuit board (12), and at least two relays (11) are arranged on the circuit board (12). The at least two relays (11) are electrically connected by a second busbar (13) arranged on the circuit board (12).

2. The power distribution module of claim 1, wherein, The bus terminal (3) is arranged on the circuit board (12), and each relay (11) is arranged corresponding to a bus terminal (3).

3. The power distribution module of claim 2, wherein, The first busbar (2) and the second busbar (13) are respectively located on opposite sides of the relay (11).

4. The power distribution module of claim 2, wherein, The distance between the upper top surface of the second busbar (13) and the lower bottom surface of the adjacent circuit board (12) is greater than or equal to 15 mm.

5. The power distribution module of claim 2, wherein, Each circuit board (12) is provided with a connector (14) arranged towards the side adjacent to the first busbar (2) of the circuit board (12).

6. The power distribution module of claim 2, wherein, The bus terminal (3) further comprises a mounting portion (32), one end of the mounting portion (32) is connected with the connecting portion (31), and the mounting portion (32) is arranged at an angle with the connecting portion (31). The mounting portion (32) is welded to the circuit board (12) of the power distribution unit (1).

7. The power distribution module of any one of claims 1 to 6, wherein, The connecting portion (31) is formed with a first connecting hole (3a), the first busbar (2) is provided with a second connecting hole (21), the first connecting hole (3a) and the second connecting hole (21) are coaxially arranged, and the connecting piece (4) is arranged in the first connecting hole (3a) and the second connecting hole (21).

8. The power distribution module of claim 7, wherein, The first connecting hole (3a) and the relay (11) are arranged in the stacking direction of the power distribution unit (1). The first connecting hole (3a) is configured as a through hole or a threaded hole.

9. The power distribution module of claim 8, wherein, The mounting portion (32) is provided with a plurality of soldering legs (33), and the bus terminal (3) is welded to the circuit board (12) by the plurality of soldering legs (33).

10. The power distribution module of claim 7, wherein, ​

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