Embedded switching power supply structure

Abstract

The utility model relates to the technical field of switching power supplies, in particular to an embedded switching power supply structure. The device comprises a rectification module layer and a power distribution layer, the rectification module layer comprises a module box and a confluence conducting bar, the power distribution layer comprises a power distribution switch and a contactor, a plurality of rectification chambers used for installing rectifiers are arranged in the module box, a rectification butt joint seat is arranged in each rectification chamber, and the confluence conducting bar comprises a positive electrode busbar and a negative electrode busbar. One end of the positive busbar and one end of the negative busbar are connected with the positive electrode and the negative electrode of the power distribution switch respectively, the other end of the positive busbar and the other end of the negative busbar are connected with the positive electrodes and the negative electrodes of the rectification butt joint seats respectively, and the contactor is inversely connected to the negative busbar. The contactor is installed in an inverted manner, so that the use length of a copper bar can be greatly saved; the product performance is improved by adopting a confluence conducting bar connection structure; parts of parts of the module box are integrated, and the number of the parts is reduced.

Description

Technical Field

[0001] This utility model relates to the field of switching power supply technology, and in particular to an embedded switching power supply structure. Background Technology

[0002] With the continuous advancement of communication power supply technology, embedded power supply systems have become an essential component of communication power supplies; moreover, with the increasing demands for cost and safety from societal development, existing technologies are increasingly unable to meet these requirements.

[0003] Existing embedded power supply structures have the following technical problems:

[0004] 1) Contactors are all installed in the forward direction. The conductive copper busbar needs to take a long path to reach the top of the contactor and connect to it, which results in a lot of copper waste. In addition, the conductive copper busbar needs to be processed with more bends to connect to the contactor, resulting in high labor costs and low production efficiency.

[0005] 2) The AC input branch line uses an independent copper plate design, with the copper plate directly exposed without protection, posing a safety hazard;

[0006] 3) The rectifier module uses cable connections when combining current, which is difficult due to limited space, difficult wiring, and low efficiency;

[0007] 4) The modular box design involves sequentially fastening components such as the cover plate, partition plate, and bottom shell, resulting in a large number of parts, making assembly difficult and time-consuming. Utility Model Content

[0008] This invention provides an embedded switching power supply structure, which aims to solve the problems existing in the current embedded power supply structure.

[0009] This utility model provides an embedded switching power supply structure, including a rectifier module layer and a power distribution layer. The rectifier module layer includes a module box and a busbar. The power distribution layer includes a power distribution switch and a contactor. The module box has multiple rectifier chambers for mounting rectifiers. Each rectifier chamber has a rectifier docking seat inside. The busbar includes a positive busbar and a negative busbar. One end of the positive busbar and the negative busbar are respectively connected to the positive and negative terminals of the power distribution switch. The other end of the positive busbar and the negative busbar are respectively connected to the positive and negative terminals of the multiple rectifier docking seats. The contactor is connected inverted to the negative busbar.

[0010] As a further improvement of this utility model, the module box includes a module box cover plate, a module box bottom shell, and a fixing piece. The module box cover plate is connected to the module box bottom shell, and the fixing piece is integrally formed with the module box cover plate. The fixing piece is bent downward from the module box cover plate, and the bottom of the fixing piece is connected to the module box bottom shell. The fixing piece divides the cavity formed by the module box cover plate and the module box bottom shell into multiple rectifier chambers.

[0011] As a further improvement of this utility model, the module box cover is provided with a limiting block, the upper end of the limiting block is connected to the module box cover, and the lower end of the limiting block is connected to the bottom shell of the module box.

[0012] As a further improvement of this utility model, the busbar also includes a transition bus. The positive busbar includes a first positive busbar and a second positive busbar, and the negative busbar includes a first negative busbar and a second negative busbar. The first positive busbar and the second positive busbar are connected through the transition busbar, and the first negative busbar and the second negative busbar are connected through the transition busbar. The first positive busbar and the first negative busbar are respectively connected to the positive and negative terminals of the power distribution switch, and the second positive busbar and the second negative busbar are respectively connected to the positive and negative terminals of multiple rectifier docking stations.

[0013] As a further improvement of this utility model, the positive busbar is provided with multiple protruding positive terminals, and the negative busbar is provided with multiple protruding positive terminals. The positive and negative terminals of the rectifier docking seat are respectively connected to the positive terminal and the negative terminal. The positive terminal or the negative terminal is provided with a bending clearance, and the positive terminal and the negative terminal are staggered by the bending clearance.

[0014] As a further improvement of this utility model, the contactor is provided with a conductive contact, the conductive contact of the contactor facing downward and connected to the negative busbar, the conductive contact being located on the wiring path of the negative busbar between the power distribution switch and the rectifier docking seat.

[0015] As a further improvement of this utility model, the power distribution layer also includes a junction box, which includes a base and a terminal block. The base is provided with a live wire connection area and a neutral wire connection area. Each of the live wire connection area and the neutral wire connection area is connected to a terminal block. Each terminal block is provided with an input terminal and at least one output terminal. The input terminal is connected to a live wire or a neutral wire, and the output terminal is connected to the positive and negative terminals of the power distribution switch respectively.

[0016] As a further improvement of this utility model, the base is provided with a partition, which is located between the input wiring hole and the output wiring hole, or between two adjacent output wiring holes.

[0017] As a further improvement of this utility model, the junction box also includes a safety cover plate, which is rotatably connected to the base, and a safety cover plate covers both the live wire connection area and the neutral wire connection area.

[0018] As a further improvement of this utility model, the embedded switching power supply structure also includes a monitoring layer, which is located between the rectifier module layer and the power distribution layer.

[0019] The beneficial effects of this utility model are as follows: the contactor is installed in an inverted manner, so that the contactor's connection point is close to the busbar, which can greatly save the length of the busbar and thus save material costs; the AC input branch line adopts the junction box access method, which improves product safety and installation efficiency; the structure of using busbar connection to replace the existing cable connection method improves product performance and reduces material costs; some parts of the module box are integrated into one piece, reducing the number of parts, improving assembly efficiency, and effectively saving costs. Attached Figure Description

[0020] Figure 1 This is an overall structural view of the front of the embedded switching power supply structure of this utility model;

[0021] Figure 2 This is an overall structural diagram of the back of the embedded switching power supply structure of this utility model;

[0022] Figure 3 This is a structural diagram of the module box in this utility model;

[0023] Figure 4 This is a diagram of the connector of the busbar in this utility model;

[0024] Figure 5 This is a structural diagram of the junction box in this utility model. Detailed Implementation

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0026] like Figures 1 to 2As shown, the embedded switching power supply structure of this utility model includes a rectifier module layer 1 and a power distribution layer 3. The rectifier module layer 1 includes a module box 4 and a busbar 5. The power distribution layer 3 includes a power distribution switch 6 and a contactor 7. The module box 4 is provided with multiple rectifier chambers 41 for installing rectifiers. Each rectifier chamber 41 is provided with a rectifier docking seat 42. The busbar 5 includes a positive busbar 51 and a negative busbar 52. One end of the positive busbar 51 and the negative busbar 52 are respectively connected to the positive and negative terminals of the power distribution switch 6. The other end of the positive busbar 51 and the negative busbar 52 are respectively connected to the positive and negative terminals of the multiple rectifier docking seats 42. The contactor 7 is connected inverted to the negative busbar 52.

[0027] Each rectifier chamber 41 houses a rectifier, which is connected to the rectifier docking seat 42 and electrically connected to the power distribution switch 6, contactor 7, junction box 8, etc., via the busbar 5. The busbar 5 enables electrical connection between various components, improving product performance and reducing material costs compared to the existing method of using cables. The contactor 7 is connected inverted to the conductive copper plate of the negative busbar 52, which can significantly reduce the length of the copper busbar used, ultimately saving material costs.

[0028] like Figure 1 As shown, the embedded switching power supply structure also includes a monitoring layer 2, which is located between the rectifier module layer 1 and the power distribution layer 3. The monitoring layer 2 is used to connect to and monitor the status of various components within the rectifier module layer 1 and the power distribution layer 3, and to provide feedback on the monitored information.

[0029] like Figure 3 As shown, the module box 4 includes a module box cover plate 43, a module box bottom shell 44, and a fixing plate 45. The module box cover plate 43 and the module box bottom shell 44 are connected together, and the fixing plate 45 is integrally formed with the module box cover plate 43. The fixing plate 45 is bent downward from the module box cover plate 43, and the bottom of the fixing plate 45 is connected to the module box bottom shell 44. The fixing plate 45 divides the cavity formed by the module box cover plate 43 and the module box bottom shell 44 into multiple rectifier chambers 41. The fixing plate 45 is directly bent from the module box cover plate 43 to form a partition plate 87, and is connected to the bottom module box bottom shell 44. The added fixing plate 45 cleverly meets the requirements of the existing assembly structure. Compared with the existing structure where the partition plate 87 has an independent joint, each partition plate 87 needs to be fixed to the module box cover plate 43 and the module box bottom shell 44 with screws during installation. This structure, in which the fixing plate 45 is integrally formed with the module box cover plate 43, reduces the number of parts and improves assembly efficiency.

[0030] The module box cover 43 is provided with a limiting block 46. The upper end of the limiting block 46 is connected to the module box cover 43, and the lower end of the limiting block 46 is connected to the module box bottom shell 44. The installation of the limiting block 46 facilitates the alignment and installation of the module box cover 43 and the module box bottom shell 44, and also limits the height between the module box cover 43 and the module box bottom shell 44, thereby providing sufficient height space so that the fixing piece 45 can be bent completely vertically to form the partition 87.

[0031] like Figure 2 and Figure 4 As shown, the busbar 5 also includes a transition bus 53. The positive busbar 51 includes a first positive busbar 54 and a second positive busbar 55. The negative busbar 52 includes a first negative busbar 56 and a second negative busbar 57. The first positive busbar 54 and the second positive busbar 55 are connected through the transition busbar 53. The first negative busbar 56 and the second negative busbar 57 are connected through the transition busbar 53. The first positive busbar 54 and the first negative busbar 56 are respectively connected to the positive and negative poles of the power distribution switch 6. The second positive busbar 55 and the second negative busbar 57 are respectively connected to the positive and negative poles of the multiple rectifier docking seats 42.

[0032] This invention uses a busbar 5 structure to replace the existing structure that uses cables for electrical connection, which reduces the space occupied by the internal structure of the power supply. The positive busbar 51 is divided into a first positive busbar 54 and a second positive busbar 55, and the negative busbar 52 is divided into a first negative busbar 56 and a second negative busbar 57. This simplifies the layout of the positive and negative busbars 51 and 52 at different locations and avoids the design and manufacturing difficulties associated with excessively long or bent single busbars. The addition of transition busbars 53 between the first positive busbar 54 and the second positive busbar 55, and between the first negative busbar 56 and the second negative busbar 57, greatly improves the utilization rate of the copper plate layout.

[0033] The positive busbar 51 is provided with multiple protruding positive connectors 58, and the negative busbar 52 is provided with multiple protruding positive connectors 58. The positive and negative terminals of the rectifier docking seat 42 are respectively connected to the positive connectors 58 and the negative connectors 59. The positive connectors 58 or the negative connectors 59 are provided with bending clearance positions 510, and the positive connectors 58 and the negative connectors 59 are staggered by the bending clearance positions 510.

[0034] Specifically, the second positive bus 55 and the second negative bus 57, connected to the rectifier docking seat 42, adopt an irregular bus structure. Because the positive and negative docking positions with the rectifier docking seat 42 are relatively close, the positive connector 58 and the negative connector 59 will also be close during assembly design. This will result in a small safety clearance and pose an electrical safety risk. Therefore, a bending clearance 510 is provided on the positive connector 58 or the negative connector 59. The bending design cleverly meets the electrical safety clearance requirements while improving the current carrying capacity. Under the same current, the existing bus material needs to be 3 mm thick to meet the requirements, while after the improvement by this bending design, the bus material thickness only needs to be 2 mm thick.

[0035] like Figure 2 As shown, the contactor 7 is equipped with a conductive contact 71. The conductive contact 71 faces downward and is connected to the negative busbar 52. The conductive contact 71 is located on the wiring path of the negative busbar 52 between the distribution switch 6 and the rectifier docking seat 42. The inverted installation of the contactor 7 mainly reduces the path of the conductive copper busbar 52 and the number of bending operations in the copper busbar processing. In contrast, the existing contactor 7 uses a forward-facing connector, which requires the conductive copper busbar to extend upward to form an arched structure. This not only increases the path but also the number of bending operations. Therefore, the inverted installation structure of this contactor 7, compared to the existing forward-facing structure, achieves the purpose of reducing material and labor costs.

[0036] like Figure 5 As shown, the power distribution layer 3 also includes a junction box 8. The junction box 8 includes a base 81 and a terminal block 82. The base 81 is provided with a live wire connection area 83 and a neutral wire connection area 84. Each of the live wire connection area 83 and the neutral wire connection area 84 is connected to a terminal block 82. Each terminal block 82 is provided with an input terminal 85 and at least one output terminal 86. The input terminal 85 is connected to the live wire or the neutral wire, and the output terminal 86 is connected to the positive and negative terminals of the power distribution switch 6 respectively.

[0037] This junction box 8 can adopt a three-phase four-wire structure, with three live wire connection areas 83 and one neutral wire connection area 84. The external live wire and neutral wire are respectively connected to the input connectors of the live wire connection area 83 and the neutral wire connection area 84, and are fixed to the conductive sheet with screws. Then, multiple output wires are branched out from multiple output terminals 86 and connected to various electrical components in the entire switching power supply structure to realize power supply.

[0038] The base 81 is provided with a partition 87, which is located between the input wiring hole and the output wiring hole, or between two adjacent output wiring holes. The live wire wiring area 83 and the neutral wire wiring area 84 can adopt an upper and lower stepped structure so that the wiring of each zone is staggered. In the live wire wiring area 83 and / or the neutral wire wiring area 84, the electrodes of each hole are isolated from each other by the partition 87 to avoid contact between the electrodes and reverse short circuit.

[0039] The junction box 8 also includes a safety cover 88, which is rotatably connected to the base 81. A safety cover 88 covers both the live wire connection area 83 and the neutral wire connection area 84. Each terminal in the live wire connection area 83 and the neutral wire connection area 84 has an individual safety cover 88, ensuring electrical safety and avoiding potential safety hazards compared to existing directly exposed copper plate structures.

[0040] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. An embedded switching power supply structure, characterized in that, The system includes a rectifier module layer and a power distribution layer. The rectifier module layer includes a module box and a busbar. The power distribution layer includes a power distribution switch and a contactor. The module box contains multiple rectifier chambers for mounting rectifiers. Each rectifier chamber has a rectifier docking seat inside. The busbar includes a positive busbar and a negative busbar. One end of the positive busbar and the negative busbar are respectively connected to the positive and negative terminals of the power distribution switch. The other end of the positive busbar and the negative busbar are respectively connected to the positive and negative terminals of the multiple rectifier docking seats. The contactor is connected inverted to the negative busbar.

2. The embedded switching power supply structure according to claim 1, characterized in that, The module box includes a module box cover, a module box bottom shell, and a fixing piece. The module box cover is connected to the module box bottom shell, and the fixing piece is integrally formed with the module box cover. The fixing piece is bent downward from the module box cover and the bottom of the fixing piece is connected to the module box bottom shell. The fixing piece divides the cavity formed by the module box cover and the module box bottom shell into multiple rectifier chambers.

3. The embedded switching power supply structure according to claim 2, characterized in that, The module box cover is provided with a limiting block. The upper end of the limiting block is connected to the module box cover, and the lower end of the limiting block is connected to the bottom shell of the module box.

4. The embedded switching power supply structure according to claim 1, characterized in that, The busbar further includes a transition busbar. The positive busbar includes a first positive busbar and a second positive busbar. The negative busbar includes a first negative busbar and a second negative busbar. The first positive busbar and the second positive busbar are connected through the transition busbar. The first negative busbar and the second negative busbar are connected through the transition busbar. The first positive busbar and the first negative busbar are respectively connected to the positive and negative terminals of the power distribution switch. The second positive busbar and the second negative busbar are respectively connected to the positive and negative terminals of multiple rectifier docking stations.

5. The embedded switching power supply structure according to claim 1, characterized in that, The positive busbar is provided with multiple protruding positive terminals, and the negative busbar is provided with multiple protruding positive terminals. The positive and negative terminals of the rectifier dock are respectively connected to the positive terminal and the negative terminal. The positive terminal or the negative terminal is provided with a bending clearance, and the positive terminal and the negative terminal are staggered by the bending clearance.

6. The embedded switching power supply structure according to claim 1, characterized in that, The contactor is provided with conductive contacts, which face downward and are connected to the negative busbar. The conductive contacts are located on the wiring path of the negative busbar between the power distribution switch and the rectifier dock.

7. The embedded switching power supply structure according to claim 1, characterized in that, The power distribution layer also includes a junction box, which includes a base and a terminal block. The base has a live wire connection area and a neutral wire connection area. Each of the live wire connection area and the neutral wire connection area is connected to a terminal block. Each terminal block has an input terminal and at least one output terminal. The input terminal is connected to the live wire or the neutral wire, and the output terminal is connected to the positive and negative terminals of the power distribution switch.

8. The embedded switching power supply structure according to claim 7, characterized in that, The base is provided with a partition, which is located between the input wiring hole and the output wiring hole, or between two adjacent output wiring holes.

9. The embedded switching power supply structure according to claim 7, characterized in that, The junction box also includes a safety cover plate, which is rotatably connected to the base. Both the live wire connection area and the neutral wire connection area are covered by a safety cover plate.

10. The embedded switching power supply structure according to claim 1, characterized in that, It also includes a monitoring layer, which is located between the rectifier module layer and the power distribution layer.

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