A control device for a direct-current power supply and a power supply apparatus

Abstract

The utility model relates to a control device and power supply equipment of direct current power supply, include: control module, control module includes control panel, at least one power module, power module includes power board and installs power device on power board, power board sets up in the side of control panel, and power device sets up in the side of power board away from control panel, support subassembly sets up in control panel and power module, and support subassembly is used for interval power module with control panel, and will control module and power module interconnect fixed and electric connection. Through the power module design is modularized and is suspended in control module, lets control module on signal wire and power module separate, can avoid power module on power device influence signal wire, lets control module on wire and power module on wire path be more smooth, and the power module and control module are separated, and the power module modularization design is easy to install and post -maintenance replacement.

Description

Technical Field

[0001] This utility model relates to the field of power supply equipment, and more specifically, to a control device and power supply equipment for a DC power supply. Background Technology

[0002] Current high-efficiency, high-power LVDC power supply topologies generally employ interleaved parallel LLC or full-bridge topologies to achieve power outputs in the KW range.

[0003] However, when increasing the power level requires connecting more modules in parallel, a problem arises regarding how to route multiple power loops in the control section. High dv / dt or di / dt values ​​on the power loops and power traces will radiate through space to the control signal traces, causing common-mode noise in the signal sampling input or output. This common-mode noise can range from minor issues like inaccurate sampling to severe impacts on the design's reliability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a control device and power supply equipment for a DC power supply with separate control module and power module, which addresses the defect of the power circuit on the control board of the prior art affecting the signal routing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a control device for a DC power supply, comprising:

[0006] The control module includes a control board;

[0007] Support components;

[0008] and at least one power module, the power module including a power board and power devices mounted on the power board;

[0009] The control board is disposed on one side of the power board, the power device is disposed on the side of the power board opposite to the control board, and the support assembly is disposed between the control board and the power board;

[0010] The support component is used to separate the power module and the control board, and to connect and fix the control module and the power module to each other and make them electrically connected.

[0011] In some embodiments, the support assembly includes a plurality of support units distributed at different locations on the power board.

[0012] In some embodiments, the support unit includes a support body and a locking device, both of which are made of conductive materials. The support body is disposed on the control board, and the locking device passes through the power board and is connected to the support body.

[0013] In some embodiments, the support unit includes a support member made of conductive material, and both ends of the support member are respectively plugged into and connected to the control board and the power board.

[0014] In some embodiments, the support unit includes a first support unit and a second support unit, which are respectively disposed at both ends of the power board, connecting the control module and the power module to each other and electrically.

[0015] In some embodiments, the number of the first support units is less than the number of the second support units. The first support units are used to allow the control board to input current to the power board, and the second support units are used to allow the power board to output current to the control board.

[0016] In some embodiments, the power module includes a transformer and an inductor disposed on the power board, the transformer being located between the first support unit and the inductor, and the inductor being located between the second support unit and the transformer.

[0017] In some embodiments, one end of the power board is provided with two first support units, and the other end of the power board is provided with four second support units.

[0018] In some embodiments, the control board is provided with a first plug-in portion, and the power board is provided with a second plug-in portion. The first plug-in portion and the second plug-in portion are plugged into each other for communication connection between the control board and the power board.

[0019] This utility model also constructs a power supply device, including the control device for the DC power supply.

[0020] The control device and power supply equipment for a DC power supply that implements this utility model have the following beneficial effects: by designing the power module above the control module, the signal traces on the control module are separated from the power module, which can prevent the power devices on the power module from affecting the signal traces, making the traces on the control module and the power module smoother. Separating the power module from the control module and modularizing the power module design makes it easier to install and maintain and replace later. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the DC power supply control device in the assembly state of an embodiment of this utility model;

[0023] Figure 2 yes Figure 1A top-view structural diagram;

[0024] Figure 3 yes Figure 1 A schematic diagram of the decomposed state structure;

[0025] Figure 4 yes Figure 1 A top view of the medium power module;

[0026] Figure 5 yes Figure 4 A schematic cross-sectional view along line AA showing the assembled state of the medium power module and the control module. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the power supply device in a preferred embodiment of this utility model can be applied to fields such as industrial control, industry, and communications. The power supply device includes a control device 10, which can be applied to high-power DC power supply products. The control device 10 of the DC power supply includes a control module 11, at least one power module 12, a support component 13, etc.

[0029] The control module 11 includes a control board 111, which has signal traces such as control lines to transmit control signals, allowing the control components to be completed on the control board 111. The power module 12 includes a power board 121 and power devices mounted on the power board 121. A power circuit is provided on the power board 121, allowing power conversion to be completed on the power module 121. The control board 111 is located on one side of the power board 121, and the power board 121 and the control board 111 are spaced apart. The power devices are located on the side of the power board 121 facing away from the control board 111, thereby achieving a spaced layout between the power and signal control components.

[0030] The support component 13 is disposed between the control board 111 and the power module 12. The support component 13 is used to separate the power module 12 from the control board 111, and to connect and fix the control module 11 and the power module 12 to each other and make them electrically connected.

[0031] By designing the power module 12 to be mounted above the control module 11, the signal traces on the control module 11 are separated from the power module 12. This avoids the traces on the power module 12 from interfering with the signal traces, making the trace paths on both the control module 11 and the power module 12 smoother. Separating the power module 12 from the control module 11, the modular design of the power module 12 facilitates installation and subsequent maintenance and replacement.

[0032] By designing the power module 12 to be mounted above the control module 11, it is beneficial to avoid the high dv / dt or di / dt interference sources generated by the power module 12 from affecting the signal sampling and control signals on the control module 11. At the same time, it is beneficial to distribute the thermal design of the devices on the power module 12 evenly and isolate them from the devices on the bottom control module 11.

[0033] The support assembly 13 includes several support units 131 distributed at different positions on the power board 121, so as to achieve stable support for the power module 12.

[0034] Combination Figure 3 , 5 As shown, in some embodiments, the support unit 131 includes a support body 1311 and a locking member 1312. Both the support body 1311 and the locking member 1312 are made of conductive materials, such as conductive metal materials, to meet the requirements of conductivity and locking strength. Preferably, the support body 1311 is disposed on the control board 111, and the locking member 1312 passes through the power board 121 and is connected to the support body 1311.

[0035] In some embodiments, the support 1311 is typically a stud, and the locking fastener 1312 is typically a screw. The conductive support 1311 and locking fastener 1312 serve both to fix the power module 12 to meet product vibration requirements and to electrically connect the power module 12 to the power circuit of the control board 111 via the support 1311 and locking fastener 1312. The support 1311 is first inserted into the control board 111 and fixed to it via reflow soldering. Then, the power board 121 of the power module 12 is hot-plugged into the support 1311, and the power module 12 is fixed by locking it with the locking fastener 1312. This method makes the power module 12 easy and efficient to install and remove, and reduces maintenance costs.

[0036] In other embodiments, the support unit includes a support member (not shown) made of conductive material. The two ends of the support member are respectively plugged into and connected to the control board 111 and the power board 121 and are conductive. Both ends of the support member are fixed by reflow soldering to achieve the purpose of conductivity.

[0037] Combination Figure 3 , Figure 5As shown, in some embodiments, the support unit includes a first support unit 131a and a second support unit 131b. The structures of the first support unit 131a and the second support unit 131b can be the same or different. The first support unit 131a and the second support unit 131b are respectively disposed at both ends of the power board 121, connecting and electrically connecting the control module 11 and the power module 12. By locking and fixing the power board 121 at both ends and supporting the power board 121, the support of the power module 12 can be more balanced, improving the stability and reliability of the product. At the same time, supporting at both ends will not affect the internal wiring of the power board 121, facilitating the wiring design of the power board 121.

[0038] Preferably, the number of first support units 131a is less than the number of second support units 131b. The first support units 131a are used to input current from the control board 111 to the power board 121, and the second support units 131b are used to output current from the power board 121 to the control board 111, thereby satisfying the working condition where the input current of the power board 121 is less than the output current. Specifically, in this embodiment, one end of the power board 121 is provided with two first support units 131a, and the other end of the power board 121 is provided with four second support units 131b. The multiple first support units 131a and second support units 131b can share the current to meet the requirements of input current and output current.

[0039] Furthermore, such as Figure 4 As shown, the power module 12 includes a transformer 122 and an inductor 123 disposed on the power board 121. The transformer 122 is located between the first support unit 131a and the inductor 123, and the inductor 123 is located between the second support unit 131b and the transformer 122, which facilitates the routing of the wiring inside the power board 121 and saves the space occupied by the wiring.

[0040] Combination Figure 3 , 4 As shown, the control board 111 is provided with a first plug-in part 112, and the power board 121 is provided with a second plug-in part 124. The first plug-in part 112 and the second plug-in part 124 are plugged in and connected for communication connection between the control board 111 and the power board 121. This communication connection allows the control signals on the control board 111 to control the power module 12, for example, to control the switching devices on the power module 12.

[0041] The number of power modules 12 can be one or more. In this embodiment, there are three power modules 12. Preferably, the three power modules 12 have the same structure, allowing them to be interchanged and installed. Alternatively, a specific number of power modules 12 can be installed according to power requirements. Since the power modules 12 use independent plug-in structures to transmit control signals, the control module 11 can independently control each power module 12.

[0042] Understandably, the above-mentioned technical features can be used in any combination without restriction.

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

Claims

1. A control device for a DC power supply, characterized in that, include: The control module includes a control board; Support components; and at least one power module, the power module including a power board and power devices mounted on the power board; The control board is disposed on one side of the power board, the power device is disposed on the side of the power board opposite to the control board, and the support assembly is disposed between the control board and the power board; The support component is used to separate the power module and the control board, and to connect and fix the control module and the power module to each other and make them electrically connected.

2. The control device for the DC power supply according to claim 1, characterized in that, The support assembly includes several support units distributed at different locations on the power board.

3. The control device for the DC power supply according to claim 2, characterized in that, The support unit includes a support body and a locking device, both of which are made of conductive materials. The support body is disposed on the control board, and the locking device passes through the power board and is connected to the support body.

4. The control device for the DC power supply according to claim 2, characterized in that, The support unit includes a support member made of conductive material, and both ends of the support member are respectively plugged into and connected to the control board and the power board.

5. The control device for a DC power supply according to any one of claims 2 to 4, characterized in that, The support unit includes a first support unit and a second support unit, which are respectively disposed at both ends of the power board, connecting the control module and the power module to each other and electrically.

6. The control device for a DC power supply according to claim 5, characterized in that, The number of the first support units is less than the number of the second support units. The first support units are used to allow the control board to input current to the power board, and the second support units are used to allow the power board to output current to the control board.

7. The control device for a DC power supply according to claim 5, characterized in that, The power module includes a transformer and an inductor disposed on the power board, the transformer being located between the first support unit and the inductor, and the inductor being located between the second support unit and the transformer.

8. The control device for a DC power supply according to claim 6, characterized in that, The power board has two first support units at one end and four second support units at the other end.

9. The control device for a DC power supply according to any one of claims 1 to 4, characterized in that, The control board is provided with a first plug-in portion, and the power board is provided with a second plug-in portion. The first plug-in portion and the second plug-in portion are plugged in and connected for communication connection between the control board and the power board.

10. A power supply device, characterized in that, The control device includes the DC power supply as described in any one of claims 1 to 9.

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