A power supply device and a communication device

Abstract

This application relates to the field of communication technology, and in particular to a power supply device and communication equipment. The power supply device includes a basic module and an expansion module. The basic module includes a main frame and at least one main rectifier module housed within the main frame. The main frame has a main connection terminal electrically connected to the main rectifier module. The expansion module includes a slave frame and at least one slave rectifier module housed within the slave frame. The slave frame has a slave connection terminal electrically connected to both the slave rectifier module and the main connection terminal. The power supply device of this application can be expanded based on the basic module through the expansion module, thereby increasing power. Furthermore, the original basic module does not need to be removed and scrapped, saving costs.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a power supply device and a communication equipment. Background Technology

[0002] In traditional embedded communication power supplies (commonly referred to as interlocking power supplies in the industry), most are designed with fixed power. With the development of the communication industry, the power requirements of base stations are increasing, and the fixed power interlocking design can no longer meet the growing expansion needs. Utility Model Content

[0003] In view of the above problems, this application provides a power supply device and a communication device that overcomes or at least partially solves the above problems.

[0004] According to one aspect of this application, a power supply device is provided, including a base module and an expansion module. The base module includes a main frame and at least one main rectifier module housed within the main frame. The main frame has a main connection terminal electrically connected to the main rectifier module. The expansion module includes a slave frame and at least one slave rectifier module housed within the slave frame. The slave frame has a slave connection terminal electrically connected to both the slave rectifier module and the main connection terminal.

[0005] In some embodiments, the number of expansion modules is several, and the expansion modules are stacked on the base module. The slave connection terminal of one expansion module is electrically connected to the main connection terminal, and the slave connection terminals of two adjacent expansion modules are electrically connected.

[0006] In some embodiments, the main connection terminals include a main AC input terminal and a main DC output terminal, and the slave connection terminals include a slave AC input terminal and a slave DC output terminal. Specifically, the slave AC input terminal of one expansion module is connected to the main AC input terminal, and the slave DC output terminal of another expansion module is connected to the main DC output terminal. The slave AC input terminals of two adjacent expansion modules are connected, and the slave DC output terminals of two adjacent expansion modules are connected.

[0007] In some embodiments, the basic module further includes a monitoring module housed within the main frame, and the monitoring module is electrically connected to the main connection terminal and the slave connection terminal.

[0008] In some embodiments, the main frame has a first opening and a second opening, and the secondary frame has a third opening and a fourth opening. A main AC input terminal passes through the first opening and the third opening sequentially to connect to a secondary AC input terminal, and a main DC output terminal passes through the second opening and the fourth opening sequentially to connect to a secondary DC output terminal. The secondary frame also has a fifth opening and a sixth opening. A secondary AC input terminal extends out of the fifth opening to connect to a secondary AC input terminal of an adjacent expansion module, and a secondary DC output terminal extends out of the sixth opening to connect to a secondary DC output terminal of an adjacent expansion module.

[0009] In some embodiments, the main AC input terminal includes a first conductive element and a second conductive element. The first conductive element is fixed in the main frame and connected to the main rectifier module. The secondary AC input terminal includes a third conductive element and a fourth conductive element. The third conductive element is fixed in the secondary frame and connected to the secondary rectifier module. One end of the second conductive element is screwed to the first conductive element by a screw connector. The other end of the second conductive element passes through the first opening and the third opening in sequence and is screwed to the third conductive element by a screw connector. One end of the fourth conductive element is screwed to the third conductive element by a screw connector. The other end of the fourth conductive element extends out of the fifth opening and is screwed to the third conductive element of the adjacent expansion module by a screw connector. The main DC output terminal includes a fifth conductive element and a sixth conductive element. The fifth conductive element is fixed in the main frame and connected to the main rectifier module. The slave DC output terminal includes a seventh conductive element and an eighth conductive element. The seventh conductive element is fixed in the slave frame and connected to the slave rectifier module. One end of the sixth conductive element is screwed to the fifth conductive element by a screw connector. The other end of the sixth conductive element passes through the second opening and the fourth opening in sequence and is screwed to the seventh conductive element by a screw connector. One end of the eighth conductive element is screwed to the seventh conductive element by a screw connector. The other end of the eighth conductive element extends out of the sixth opening and is screwed to the seventh conductive element of the adjacent expansion module by a screw connector.

[0010] In some embodiments, the main frame is provided with a first surface, a first opening and a second opening are located on the first surface, a second surface is provided on the frame, a third opening and a fourth opening are located on the second surface, the second surface abuts against the first surface, the first opening corresponds to the third opening, and the second opening corresponds to the fourth opening.

[0011] In some embodiments, in any of the housings, a third surface is provided opposite to the second surface, and a fifth opening and a sixth opening are located on the third surface, corresponding to each other. In two adjacent expansion modules, the third surface of one expansion module abuts against the second surface of another expansion module, the third opening of one expansion module corresponds to the fifth opening of another expansion module, and the fourth opening of one expansion module corresponds to the sixth opening of another expansion module.

[0012] In some embodiments, the base module further includes a main battery access terminal electrically connected to the main DC output terminal, and the main frame is also provided with a seventh opening. The expansion module further includes a slave battery access terminal electrically connected to the slave DC output terminal, and the slave frame is also provided with an eighth opening. The main battery access terminal passes through the seventh opening and the eighth opening in sequence to connect to the slave battery access terminal. The slave frame is also provided with a ninth opening, and the slave battery access terminal extends out of the ninth opening to connect to the slave battery access terminal of the adjacent expansion module. The main battery access terminal and the slave battery access terminal are used to connect to an energy storage battery.

[0013] According to one aspect of this application, a communication device is provided, including the power supply device described above.

[0014] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a power supply device including a basic module and an expansion module. The basic module includes a main frame and at least one main rectifier module housed within the main frame. The main frame has a main connection terminal electrically connected to the main rectifier module. Current input to the main connection terminal can be rectified by the main rectifier module, and the rectified current can be output through the main connection terminal. The expansion module includes a slave frame and at least one slave rectifier module housed within the slave frame. The slave frame has a slave connection terminal electrically connected to both the slave rectifier module and the main connection terminal. Current input to the slave connection terminal can be rectified by the slave rectifier module, and the rectified current can be output through the slave connection terminal. The main rectifier module and the slave rectifier module can be electrically connected to increase power. The power supply device of this application can be expanded based on the basic module through the expansion module, achieving an increase in power. Furthermore, the original basic module does not need to be removed and scrapped, saving costs. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this application, the drawings used in this application 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 drawings without creative effort.

[0016] Figure 1 This is a perspective view of the power supply device provided in the embodiments of this application;

[0017] Figure 2 This is a perspective view of the basic module provided in the embodiments of this application;

[0018] Figure 3 This is a perspective view of the basic module provided in the embodiments of this application;

[0019] Figure 4 This is a perspective view of the extended module provided in the embodiments of this application;

[0020] Figure 5 This is a perspective view of the extended module provided in the embodiments of this application;

[0021] Figure 6 This is a schematic diagram of the connection structure between the basic module and the expansion module provided in the embodiments of this application;

[0022] Figure 7 This is a schematic diagram of the connection structure between the main AC input terminal and the slave AC input terminal provided in an embodiment of this application;

[0023] Figure 8 This is a schematic diagram of the connection structure between the main DC output terminal and the slave DC output terminal provided in an embodiment of this application;

[0024] Figure 9 This is a system diagram of the power supply device provided in the embodiments of this application.

[0025] The reference numerals in the detailed embodiments are as follows:

[0026] 100. Power Supply Unit; 1. Basic Module; 11. Main Frame; 11a. First Surface; 111. First Opening; 112. Second Opening; 113. Seventh Opening; 12. Main Rectifier Module; 13. Main Connection Terminal; 131. Main AC Input Terminal; 1311. First Conductive Component; 1313. First Connection Part; 1312. Second Conductive Component; 132. Main DC Output Terminal; 1321. Fifth Conductive Component; 1323. Third Connection Part; 1322. Sixth Conductive Component; 14. Monitoring Module; 15. Main Battery Access Terminal; 151. Ninth Conductive Component; 152. Tenth Conductive Component; 16. User Interface Board; 17. CAN Communication Cascade Board; 2. Topology Module; 21. From the frame; 21a. Second surface; 21b. Third surface; 211. Third opening; 212. Fourth opening; 213. Fifth opening; 214. Sixth opening; 215. Eighth opening; 216. Ninth opening; 22. From the rectifier module; 23. From the connection terminal; 231. From the AC input terminal; 2311. Third conductive element; 2313. Second connection part; 2312. Fourth conductive element; 232. From the DC output terminal; 2321. Seventh conductive element; 2323. Fourth connection part; 2322. Eighth conductive element; 24. From the battery input terminal; 241. Eleventh conductive element; 242. Twelfth conductive element; 3. Screw connector. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0029] In traditional embedded communication power supplies (commonly referred to as interlocking power supplies in the industry), most are designed with fixed power. With the development of the communication industry, the power requirements of base stations are increasing, and the fixed power interlocking design can no longer meet the growing expansion needs.

[0030] The power supply device of this application can be expanded based on the basic module through expansion modules, which can increase the power. In addition, the original basic module does not need to be removed and scrapped, which can save costs.

[0031] To facilitate the reader's understanding of the inventive concept of this utility model, the specific structure of the power supply device is described below:

[0032] Please see Figure 1-5The power supply device 100 includes a basic module 1 and an expansion module 2. The basic module 1 includes a main frame 11 and at least one main rectifier module 12, which is housed within the main frame 11. The main frame 11 is provided with a main connection terminal 13, which is electrically connected to the main rectifier module 12. The current input to the main connection terminal 13 can be rectified by the main rectifier module 12, and the rectified current can be output through the main connection terminal 13. The expansion module 2 includes a slave frame 21 and at least one slave rectifier module 22 housed within the slave frame 21. The slave frame 21 is provided with a slave connection terminal 23, which is electrically connected to the slave rectifier module 22 and the main connection terminal 13. The current input to the slave connection terminal 23 can be rectified by the slave rectifier module 22, and the rectified current can be output through the slave connection terminal 23. The main rectifier module 12 and the slave rectifier module 22 can be electrically connected to increase power. The power supply device 100 of this application can be expanded based on the basic module 1 through the expansion module 2, which can increase the power. In addition, the original basic module 1 does not need to be removed and scrapped, which can save costs.

[0033] In some embodiments, the basic module 1 further includes a monitoring module 14, which is housed within the main frame 11. The monitoring module 14 is electrically connected to the main connection terminal 13 and the slave connection terminal 23. The monitoring module 14 is used to monitor and control the operating status of each component in the basic module 1 and the expansion module 2.

[0034] In some embodiments, the basic module 1 further includes a user interface board 16 and a CAN (Controller Area Network) communication cascade board housed in the main frame 11. The user interface board 16 and the CAN communication cascade board 17 are electrically connected to the main connection terminal 13 and the slave connection terminal 23, respectively. The user interface board 16 is used to assist the basic module 1 in exchanging information with external devices, and the CAN communication cascade board 17 is used to assist the basic module 1 in transmitting data with external devices.

[0035] In some embodiments, the number of expansion modules 2 is several, which can further expand the capacity of the basic module 1. Several expansion modules 2 are stacked on the basic module 1, which can reduce the size of the power supply device 100. The slave connection terminal 23 of one expansion module 2 is electrically connected to the main connection terminal 13, and the slave connection terminals 23 of two adjacent expansion modules 2 are electrically connected, so that the main rectifier module 12 and the slave rectifier modules 22 of several expansion modules 2 can be electrically connected to further increase the power.

[0036] In some embodiments, the main connection terminal 13 includes a main AC input terminal 131 and a main DC output terminal 132, which are electrically connected to the main rectifier module 12, respectively. AC power input to the main AC input terminal 131 can be rectified by the main rectifier module 12 to form DC power, and the rectified DC power can be output through the main DC output terminal 132. The slave connection terminal 23 includes a slave AC input terminal 231 and a slave DC output terminal 232, which are electrically connected to the slave rectifier module 22, respectively. AC power input to the slave AC input terminal 231 can be rectified by the slave rectifier module 22 to form DC power, and the rectified DC power can be output through the slave DC output terminal 232. In this embodiment, the slave AC input terminal 231 of an expansion module 2 is connected to the main AC input terminal 131, and the slave DC output terminal 232 of an expansion module 2 is connected to the main DC output terminal 132, allowing the main rectifier module 12 and the slave rectifier module 22 of the expansion module 2 to be electrically connected to increase power. The AC input terminals 231 of two adjacent expansion modules 2 are connected, and the DC output terminals 232 of two adjacent expansion modules 2 are connected, so that the main rectifier module 12 and the slave rectifier modules 22 of several expansion modules 2 can be electrically connected to increase power.

[0037] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 6 The main frame 11 is provided with a first opening 111 and a second opening 112, and the secondary frame 21 is provided with a third opening 211 and a fourth opening 212. The main AC input terminal 131 passes through the first opening 111 and the third opening 211 in sequence and is connected to the secondary AC input terminal 231. The main DC output terminal 132 passes through the second opening 112 and the fourth opening 212 in sequence and is connected to the secondary DC output terminal 232. This facilitates the electrical connection between the main rectifier module 12 in the main frame 11 and the secondary rectifier module 22 in the secondary frame 21, and allows parts of the main AC input terminal 131 and the main DC output terminal 132 to be housed in the secondary frame 21, which can reduce the possibility that the main AC input terminal 131 and the main DC output terminal 132 will occupy additional external space. The frame 21 is also provided with a fifth opening 213 and a sixth opening 214. The fifth opening 213 extends from the AC input terminal 231 and connects to the AC input terminal 231 of the adjacent expansion module 2. The sixth opening 214 extends from the DC output terminal 232 and connects to the DC output terminal 232 of the adjacent expansion module 2. This facilitates the electrical connection of the rectifier module 22 of the adjacent expansion module 2 and allows portions of the AC input terminal 231 and the DC output terminal 232 to be housed within the frame 21 of the adjacent expansion module 2, reducing the possibility that the AC input terminal 231 and the DC output terminal 232 will occupy additional external space.

[0038] In some embodiments, please refer to the following: Figure 7 and Figure 8 The main AC input terminal 131 includes a first conductive element 1311 and a second conductive element 1312. The first conductive element 1311 is fixed inside the main frame 11 and connected to the main rectifier module 12. The secondary AC input terminal 231 includes a third conductive element 2311 and a fourth conductive element 2312. The third conductive element 2311 is fixed inside the secondary frame 21 and connected to the secondary rectifier module 22. One end of the second conductive element 1312 is screwed to the first conductive element 1311 through a screw connector 3, and the other end of the second conductive element 1312 passes through the first opening 111 in sequence. The third opening 211 and the third conductive element 2311 are screwed together by the screw connector 3. One end of the fourth conductive element 2312 is screwed to the third conductive element 2311 by the screw connector 3. The other end of the fourth conductive element 2312 extends out of the fifth opening 213 and is screwed to the third conductive element 2311 of the adjacent expansion module 2 by the screw connector 3. This improves the stability of the connection between the main AC input terminal 131 and the secondary AC input terminal 231, while also facilitating the fixing of the expansion module 2 to the base module 1 and the installation and removal of the expansion module 2 and the base module 1. The main DC output terminal 132 includes a fifth conductive element 1321 and a sixth conductive element 1322. The fifth conductive element 1321 is fixed inside the main frame 11 and connected to the main rectifier module 12. The secondary DC output terminal 232 includes a seventh conductive element 2321 and an eighth conductive element 2322. The seventh conductive element 2321 is fixed inside the secondary frame 21 and connected to the secondary rectifier module 22. One end of the sixth conductive element 1322 is screwed to the fifth conductive element 1321 via a screw connector 3. The other end of the sixth conductive element 1322 passes sequentially through the second opening 112 and... The fourth opening 212 is screwed to the seventh conductive element 2321 via a screw connector 3. One end of the eighth conductive element 2322 is screwed to the seventh conductive element 2321 via a screw connector 3, and the other end of the eighth conductive element 2322 extends out of the sixth opening 214 and is screwed to the seventh conductive element 2321 of the adjacent expansion module 2 via a screw connector 3. This improves the stability of the connection between the main DC output terminal 132 and the secondary DC output terminal 232, while also facilitating the fixing of the expansion module 2 to the base module 1 and the installation and removal of the expansion module 2 and the base module 1. In some embodiments, the screw connector 3 can be a screw or a bolt and nut.

[0039] In some embodiments, the first conductive element 1311 includes a first connecting portion 1313 extending toward the first opening 111, and the third conductive element 2311 includes a second connecting portion 2313 extending toward the fifth opening 213. One end of the second conductive element 1312 abuts against the surface of the first connecting portion 1313, and the other end of the second conductive element 1312 abuts against the surface of the second connecting portion 2313. This can increase the contact area between the second conductive element 1312 and the first conductive element 1311 and the third conductive element 2311, thereby improving the current carrying capacity. The fifth conductive element 1321 includes a third connecting portion 1323 extending toward the first opening 111, and the seventh conductive element 2321 includes a fourth connecting portion 2323 extending toward the sixth opening 214. One end of the sixth conductive element 1322 abuts against the surface of the third connecting portion 1323, and the other end of the sixth conductive element 1322 abuts against the surface of the fourth connecting portion 2323. This can increase the contact area between the sixth conductive element 1322 and the fifth conductive element 1321 and the seventh conductive element 2321, thereby improving the current carrying capacity.

[0040] In some embodiments, the main AC input terminal 131, the main DC output terminal 132, the slave AC input terminal 231, and the slave DC output terminal 232 can be copper busbars, which can improve the current carrying capacity and enhance the stability of the connection between the basic module 1 and the expansion module 2.

[0041] In some embodiments, the main frame 11 is provided with a first surface 11a, a first opening 111 and a second opening 112 are located on the first surface 11a, and the frame 21 is provided with a second surface 21a, a third opening 211 and a fourth opening 212 are located on the second surface 21a, the second surface 21a abuts against the first surface 11a, the first opening 111 corresponds to the third opening 211, and the second opening 112 corresponds to the fourth opening 212, so that the expansion module 2 can be tightly disposed on the base module 1, which can improve the stability of the power supply device 100 and reduce the size of the power supply device 100.

[0042] In some embodiments, in any of the housings 21, a third surface 21b is provided opposite to the second surface 21a. A fifth opening 213 and a sixth opening 214 are located on the third surface 21b, with the fifth opening 213 corresponding to the third opening 211 and the sixth opening 214 corresponding to the fourth opening 212. In two adjacent expansion modules 2, the third surface 21b of one expansion module 2 abuts against the second surface 21a of the other expansion module 2, the third opening 211 of one expansion module 2 corresponds to the fifth opening 213 of the other expansion module 2, and the fourth opening 212 of one expansion module 2 corresponds to the sixth opening 214 of the other expansion module 2. This allows the expansion modules 2 to be tightly disposed on adjacent expansion modules 2, which can improve the stability of the power supply device 100 and reduce the size of the power supply device 100.

[0043] In some embodiments, the base module 1 further includes a main battery access terminal 15 electrically connected to the main DC output terminal 132, and the main frame 11 is also provided with a seventh opening 113. The expansion module 2 further includes a slave battery access terminal 24 electrically connected to the slave DC output terminal 232, and the slave frame 21 is also provided with an eighth opening 215. The main battery access terminal 15 passes through the seventh opening 113 and the eighth opening 215 in sequence and connects to the slave battery access terminal 24. The slave frame 21 is also provided with a ninth opening 216, and the slave battery access terminal 24 extends out of the ninth opening 216 and connects to the slave battery access terminal 24 of the adjacent expansion module 2. The main battery access terminal 15 and the slave battery access terminal 24 are used to connect to an energy storage battery, which can provide power when the external power supply is unavailable.

[0044] In some embodiments, the main battery access terminal 15 includes a ninth conductive element 151 and a tenth conductive element 152. The ninth conductive element 151 is fixed inside the main frame 11 and connected to the main rectifier module 12. The secondary battery access terminal 24 includes an eleventh conductive element 241 and a twelfth conductive element 242. The eleventh conductive element 241 is fixed inside the secondary frame 21 and connected to the secondary rectifier module 22. One end of the tenth conductive element 152 is screwed to the ninth conductive element 151 via a screw connector 3, and the other end of the tenth conductive element 152 passes through the seventh opening 113 in sequence. The eighth opening 215 is screwed to the eleventh conductive element 241 via a screw connector 3. One end of the twelfth conductive element 242 is screwed to the eleventh conductive element 241 via a screw connector 3. The other end of the twelfth conductive element 242 extends out of the ninth opening 216 and is screwed to the eleventh conductive element 241 of the adjacent expansion module 2 via a screw connector 3. This improves the stability of the connection between the main battery access terminal 15 and the secondary battery access terminal 24, while also facilitating the fixing of the expansion module 2 to the base module 1 and the installation and removal of the expansion module 2 and the base module 1.

[0045] In some embodiments, please refer to the following: Figure 9 The basic module 1 may include several main rectifier modules 12, and the expansion module 2 may include several slave rectifier modules 22. When the power supply device 100 is powered by the energy storage battery, the main battery access terminal 15 and the slave battery access terminal 24 need to cooperate with external contactors and shunts to achieve battery management.

[0046] This utility model also provides an embodiment of a communication device, which includes the above-mentioned power supply device 100, energy storage battery, contactor and shunt.

[0047] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A power supply device, characterized in that, include: The basic module includes a main frame and at least one main rectifier module, wherein the main rectifier module is housed in the main frame, and the main frame is provided with a main connection terminal, which is electrically connected to the main rectifier module. An expansion module includes a housing and at least one slave rectifier module housed within the housing. The housing is provided with a slave connection terminal, which is electrically connected to the slave rectifier module and the main connection terminal.

2. The power supply device according to claim 1, characterized in that, The number of expansion modules is several, and several expansion modules are stacked on the base module; the slave connection terminal of one expansion module is electrically connected to the main connection terminal, and the slave connection terminals of two adjacent expansion modules are electrically connected.

3. The power supply device according to claim 2, characterized in that, The main connection terminals include a main AC input terminal and a main DC output terminal, and the slave connection terminals include a slave AC input terminal and a slave DC output terminal; wherein... The slave AC input terminal of one of the expansion modules is connected to the main AC input terminal, and the slave DC output terminal of the expansion module is connected to the main DC output terminal; The AC input terminals of two adjacent expansion modules are connected, and the DC output terminals of two adjacent expansion modules are connected.

4. The power supply device according to claim 1, characterized in that, The basic module also includes a monitoring module, which is housed within the main frame and is electrically connected to the main connection terminal and the slave connection terminal.

5. The power supply device according to claim 3, characterized in that, The main frame is provided with a first opening and a second opening, the slave frame is provided with a third opening and a fourth opening, the main AC input terminal passes through the first opening and the third opening in sequence and is connected to the slave AC input terminal, and the main DC output terminal passes through the second opening and the fourth opening in sequence and is connected to the slave DC output terminal. The frame is also provided with a fifth opening and a sixth opening. The AC input terminal extends out of the fifth opening and connects to the AC input terminal of the adjacent expansion module. The DC output terminal extends out of the sixth opening and connects to the DC output terminal of the adjacent expansion module.

6. The power supply device according to claim 5, characterized in that, The main AC input terminal includes a first conductive element and a second conductive element. The first conductive element is fixed in the main frame and connected to the main rectifier module. The slave AC input terminal includes a third conductive element and a fourth conductive element. The third conductive element is fixed in the slave frame and connected to the slave rectifier module. One end of the second conductive element is screwed to the first conductive element by a screw connector. The other end of the second conductive element passes through the first opening and the third opening in sequence and is screwed to the third conductive element by a screw connector. One end of the fourth conductive element is screwed to the third conductive element by a screw connector. The other end of the fourth conductive element extends out of the fifth opening and is screwed to the third conductive element of the adjacent expansion module by a screw connector. The main DC output terminal includes a fifth conductive element and a sixth conductive element. The fifth conductive element is fixed in the main frame and connected to the main rectifier module. The slave DC output terminal includes a seventh conductive element and an eighth conductive element. The seventh conductive element is fixed in the slave frame and connected to the slave rectifier module. One end of the sixth conductive element is screwed to the fifth conductive element by a screw connector. The other end of the sixth conductive element passes through the second opening and the fourth opening in sequence and is screwed to the seventh conductive element by a screw connector. One end of the eighth conductive element is screwed to the seventh conductive element by a screw connector. The other end of the eighth conductive element extends out of the sixth opening and is screwed to the seventh conductive element of the adjacent expansion module by a screw connector.

7. The power supply device according to claim 5, characterized in that, The main frame is provided with a first surface, and the first opening and the second opening are located on the first surface. The secondary frame is provided with a second surface, and the third opening and the fourth opening are located on the second surface. The second surface abuts against the first surface, and the first opening corresponds to the third opening and the second opening corresponds to the fourth opening.

8. The power supply device according to claim 7, characterized in that, In any of the said secondary frames, the secondary frame is provided with a third surface opposite to the second surface, the fifth opening and the sixth opening are located on the third surface, the fifth opening and the third opening correspond to each other, and the sixth opening and the fourth opening correspond to each other; In two adjacent expansion modules, the third surface of one expansion module abuts against the second surface of the other expansion module, the third opening of one expansion module corresponds to the fifth opening of the other expansion module, and the fourth opening of one expansion module corresponds to the sixth opening of the other expansion module.

9. The power supply device according to claim 5, characterized in that, The basic module also includes a main battery access terminal electrically connected to the main DC output terminal, and the main frame is also provided with a seventh opening. The expansion module also includes a slave battery access terminal electrically connected to the slave DC output terminal, and the slave frame is also provided with an eighth opening. The main battery access terminal passes through the seventh opening and the eighth opening in sequence and connects to the slave battery access terminal. The frame is also provided with a ninth opening, and the battery access terminal extends out of the ninth opening and connects to the battery access terminal of the adjacent expansion module; wherein, the main battery access terminal and the battery access terminal are used to connect to the energy storage battery.

10. A communication device, characterized in that, Includes the power supply device as described in any one of claims 1-9.

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