A DC uninterruptible power supply

Abstract

This utility model relates to the field of power equipment technology, and more specifically, to a DC uninterruptible power supply (UPS), comprising a housing, a cover plate, a PCBA, a battery module, a battery expansion module, a communication module, and a heat dissipation module, and also includes a rack expansion structure. The rack expansion structure includes a first limiting member, several guide members, and a second limiting member. The first limiting member has a male seat, and a guide groove is formed between every two guide members. An expansion port is provided on the side wall of the housing, and the second limiting member is disposed in the expansion port. The battery expansion module enters through the expansion port and is placed inside the housing along the guide groove. One end of the battery expansion module is inserted and fixed to the male seat on the first limiting member, and the other end is abutted against the second limiting member. This utility model of DC uninterruptible power supply allows for the free insertion and removal of the battery expansion module, enabling the battery cell capacity to be adjusted and replaced according to different scenarios. The overall use is more flexible, and transportation is more convenient, allowing it to be transported directly as ordinary goods.

Description

Technical Field

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

[0002] A DC uninterruptible power supply (UPS) is a power supply device that converts alternating current (AC) to direct current (DC) and continues to provide stable DC power when the mains power is interrupted. Goods with a total battery pack power exceeding 100 Wh (watt-hours) are considered overpowered goods, and their transportation requires meeting specific conditions (for safety reasons, high-power batteries may pose risks such as overheating and short circuits during transportation).

[0003] Currently, uninterruptible power supplies (UPS) for security and network communication equipment installed in building computer rooms, small computer rooms, and other similar locations mostly use battery packs. While these can solve the problem of energy storage and ensuring uninterrupted power supply during sudden mains power outages, the structure of battery packs is relatively fixed and difficult to modify to meet specific energy storage needs. For example, a 300W UPS with a 300Wh battery pack requires hazardous material transportation, increasing transportation costs and process complexity, and making it difficult to adapt to diverse power demands in different scenarios.

[0004] For example, Chinese Patent Publication No. CN217606961U discloses a rack-mounted energy storage device, including a rack and multiple energy storage units. The rack has multiple layers of housing space, and the energy storage units are disposed within these housing spaces. Each energy storage unit has a positive terminal and a negative terminal. The rack also has a positive busbar and a negative busbar. The positive terminal of each energy storage unit is connected to the positive busbar via a wire, and the negative terminal is connected to the negative busbar via a wire. Such energy storage devices have multiple layers of housing space, increasing flexibility, but their overall size is also very large, making them inconvenient to transport. Utility Model Content

[0005] This utility model provides a DC uninterruptible power supply that allows for the easy insertion or removal of battery expansion modules, enabling the battery cell capacity to be adjusted and replaced according to different scenarios. The overall use is more flexible and the transportation is more convenient, allowing it to be transported directly as ordinary goods.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A DC uninterruptible power supply is provided, including a housing, a cover plate that covers the housing, a PCBA disposed within the housing, a battery module electrically connected to the PCBA, a battery expansion module, a communication module, and a heat dissipation module. The housing also has an input interface and an output interface electrically connected to the PCBA, and includes a rack expansion structure. The rack expansion structure includes a first limiting member, several guide members, and a second limiting member disposed on the bottom wall of the housing. The first limiting member has a male connector electrically connected to the PCBA. A guide groove is formed between every two guide members. An expansion opening is provided on the side wall of the housing, and the second limiting member is disposed in the expansion opening. The battery expansion module enters through the expansion opening and is placed inside the housing along the guide groove. One end of the battery expansion module is inserted and fixed to the male connector on the first limiting member, and the other end is abutted against the second limiting member.

[0008] Furthermore, there are several expansion ports, and the number of second limiting members is equal to the number of expansion ports; the second limiting members are arranged side by side and are arranged opposite to the first limiting members.

[0009] Furthermore, the number of guide grooves is equal to the number of expansion ports and corresponds one-to-one; the opening of each guide groove faces the corresponding expansion port, and the center line of each guide groove is perpendicular to the first limiting member.

[0010] Furthermore, the length of the first limiting member is greater than the sum of the widths of all the guide slots, the number of male seats on the first limiting member is equal to the number of guide slots and corresponds one-to-one, and each male seat is electrically connected to the PCBA.

[0011] Preferably, the first limiting member has a first base plate fixing member on the side facing the guide groove, and the first base plate fixing member is disposed on the inner bottom wall of the housing; the bottom of the second limiting member extends towards the side facing the guide groove to form a second base plate fixing member; the battery expansion module is inserted and fixed at one end of the male seat and abuts against the first base plate fixing member, and at the other end and abuts against the second base plate fixing member.

[0012] Preferably, the battery expansion module is a 100Wh battery.

[0013] Preferably, the battery module and the battery expansion module are connected in parallel.

[0014] Optionally, the housing may also be provided with a display screen that is electrically connected to the PCBA.

[0015] Optionally, the housing is also provided with a universal socket that is electrically connected to the PCBA.

[0016] Compared with existing technologies, the DC uninterruptible power supply of this utility model simplifies the structure of existing energy storage devices. It features a frame expansion structure on the casing, including a first and second limiting member for securing the front and rear ends of the battery expansion module, and a guide groove for guiding the insertion and removal of the battery expansion module. This allows the battery cell capacity of the DC uninterruptible power supply to be adjusted and replaced according to different usage scenarios. Furthermore, because its battery expansion module can be freely plugged in or removed, it is more flexible in use and adapts to the diverse power needs of security and network communication equipment in different scenarios such as building computer rooms and small computer rooms. Transportation is also more convenient; it can be disassembled into multiple modules for separate transport, ensuring that each module meets the requirements for ordinary cargo transportation and avoiding the cumbersome procedures and additional costs associated with transporting dangerous goods. Attached Figure Description

[0017] Figure 1 This is an overall view of a DC uninterruptible power supply according to one embodiment of the present invention.

[0018] Figure 2 This is another view of the DC uninterruptible power supply in one embodiment of the present invention.

[0019] Figure 3 for Figure 2 Enlarged view of section AA in the image.

[0020] Figure 4 This is a partial structural diagram of a DC uninterruptible power supply in one embodiment of the present invention.

[0021] Figure 5 This is a partial structural diagram of a DC uninterruptible power supply in one embodiment of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It should be understood that terms such as "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0023] like Figures 1 to 5 The figure shown is an embodiment of the DC uninterruptible power supply of this utility model.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the DC uninterruptible power supply of this embodiment includes a housing 10, a cover plate 20 that covers the housing 10, a PCBA 30, a battery module 40, a battery expansion module 50, a communication module 60, and a heat dissipation module 70. The PCBA 30 is disposed inside the housing 10. The battery module 40, the battery expansion module 50, the communication module 60, and the heat dissipation module 70 are all electrically connected to the PCBA 30. The housing 10 is also provided with an input interface 11 and an output interface 12 that are electrically connected to the PCBA 30.

[0025] The DC uninterruptible power supply of this utility model simplifies the structure of existing energy storage devices by providing a rack expansion structure on the housing 10 for fixing the battery expansion module 50. For example... Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the rack expansion structure includes a first limiting member 13, a guide member 14, a second limiting member 15, a male connector 16, and an expansion port 17. The first limiting member 13 is disposed on the inner bottom wall of the housing 10; multiple guide members 14 are provided, and a guide groove 141 is formed between every two guide members 14; the male connector 16 is disposed on the first limiting member 13 and electrically connected to the PCBA 30; the expansion port 17 is disposed on the side wall of the housing 10 and is externally connected to the DC uninterruptible power supply; the second limiting member 15 is disposed at the expansion port 17. When installing the battery expansion module 50, the battery expansion module 50 is pushed into the expansion port 17 and slides along the guide groove 141 until it is placed inside the housing 10. One end of the battery expansion module 50 is inserted and fixed to the male connector 16 on the first limiting member 13, and the other end is abutted against the second limiting member 15. It is understood that a handle 51 can also be provided on the battery expansion module 50 for easy insertion and removal during installation.

[0026] In this embodiment of the utility model, the battery expansion module 50 is a 100Wh battery, which enables general cargo transportation, simplifies the transportation process, and saves additional costs.

[0027] That is, multiple guide members 14 are set to form multiple guide slots 141 to facilitate the installation of multiple battery expansion modules 50, making it more flexible and convenient to use. In addition, it is understood that the PCBA30 is equipped with protection circuits to effectively protect against overcharging, over-discharging, short circuits, over-temperature, etc., improving the safety of the power supply; the communication module 60 can remotely monitor the working status of the battery pack, allowing users to understand the status of the equipment in a timely manner. When a single module fails, it can promptly remind the user to replace it individually, reducing maintenance costs and difficulty; the heat dissipation module 70 can be a fan.

[0028] The DC uninterruptible power supply (UPS) features a rack expansion structure on its housing 10. This structure includes a first limiting member 13 and a second limiting member 15 for securing the battery expansion module 50 to its front and rear ends, as well as a guide groove 141 for guiding the insertion and removal of the battery expansion module 50. This allows the battery cell capacity of the UPS to be adjusted and replaced according to different usage scenarios. Furthermore, the battery expansion module 50 can be freely plugged in or removed, making it more flexible in use. Through the expansion combination of multiple 100Wh battery modules 40, it can adapt to the diverse power needs of security and network communication equipment in different scenarios such as building computer rooms and small computer rooms. Transportation is also more convenient; it can be disassembled into multiple modules for separate transport, ensuring that each module meets the requirements for ordinary cargo transportation and avoiding the cumbersome procedures and additional costs associated with transporting dangerous goods.

[0029] In a preferred embodiment, such as Figure 1 , Figure 4As shown, to facilitate the installation and use of multiple battery expansion modules 50, multiple expansion ports 17 can be provided, and the number of second limiting members 15 is approximately equal to the number of expansion ports 17. In this embodiment, two expansion ports 17 are provided, but in practical applications, the number can be adjusted as needed. For ease of use and transportation, the overall rack structure is mainly flat, so the second limiting members 15 are arranged side by side. At the same time, the second limiting members 15 are arranged opposite to the first limiting members 13 to ensure the stability of the battery expansion module 50 during installation, as well as the reliability and safety of the mechanical structure and electrical connection interface of the battery expansion module 50.

[0030] In a preferred embodiment, such as Figure 4 As shown, the number of guide slots 141 corresponds one-to-one with the number of expansion ports 17. The opening of each guide slot 141 faces the corresponding expansion port 17, and the center line of each guide slot 141 is perpendicular to the first limiting member 13, making it more convenient and easier to operate when inserting or removing the expansion battery; Figure 4 As shown, the length of the first limiting member 13 is greater than the sum of the widths of all guide grooves 141. The number of male connectors 16 on the first limiting member 13 is equal to the number of guide grooves 141 and corresponds one-to-one. Each male connector 16 is electrically connected to the PCBA 30, which simplifies the circuit structure inside the housing 10 and ensures that the connection end of each battery expansion module 50 and the male connector 16 can be reliably connected to the connection terminal of the male connector 16.

[0031] In a preferred embodiment, such as Figure 3 , Figure 4 and Figure 5 As shown, the first limiting member 13 is provided with a first base plate fixing member 131 on the side facing the guide groove 141, and the first base plate fixing member 131 is provided on the inner bottom wall of the housing 10; the bottom of the second limiting member 15 extends to the side facing the guide groove 141 to form a second base plate fixing member 151; the battery expansion module 50 is plugged into and fixed at one end of the male seat 16 and abuts against the first base plate fixing member 131, and the other end abuts against the second base plate fixing member 151. When installing the battery expansion module 50, first open the second limiting member 15 (which can actually serve as the front cover of the expansion port 17), and push the battery expansion module 50 from the outside to the inside through the expansion port 17, entering along the guide groove 141 until the entry end of the battery expansion module 50 reaches the bottom of the male connector 16. The battery expansion module 50 is first limited by the first bottom plate fixing member 131 to prevent the male connector 16 from colliding with the female connector electrical connector. Then, the second limiting member 15 is fixedly installed on the expansion port 17. At this time, the second bottom fixing member abuts against the battery expansion module 50, completing the electrical connection and installation of the battery expansion module 50. It should be noted that, in order to make the second bottom plate fixing member 151 on the second limiting member 15 more stably press the end of the battery expansion module 50, the second bottom plate fixing member 151 can be folded towards the contact surface with the battery expansion module 50 to form a pressing member 152.

[0032] In the above embodiments, the battery module 40 and the battery expansion module 50 are connected in parallel, resulting in more stable device operation; as... Figure 1 and Figure 2 As shown, the housing 10 is also equipped with a display screen 18 electrically connected to the PCBA 30, which allows for timely monitoring of equipment parameters and other information; the housing 10 is also equipped with a universal socket 19 electrically connected to the PCBA 30. In this embodiment of the DC uninterruptible power supply, the entire battery module expansion process is achieved through a plug-and-play method to ensure uninterrupted power supply. The product is designed as a single 100Wh battery module to ensure compliance with transportation safety requirements and enable general cargo transportation.

[0033] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A direct current uninterrupted power supply, comprising a housing, a cover plate covering the housing, a PCBA arranged in the housing, a battery module electrically connected with the PCBA, a battery expansion module, a communication module and a heat dissipation module, wherein the housing is further provided with an input interface and an output interface electrically connected with the PCBA. It also includes rack expansion structures; The rack expansion structure includes a first limiting member, several guide members, and a second limiting member disposed on the bottom wall of the housing. The first limiting member is provided with a male connector electrically connected to the PCBA. A guide groove is formed between every two guide members. An expansion opening is provided on the side wall of the housing. The second limiting member is disposed in the expansion opening. The battery expansion module enters through the expansion opening and is placed in the housing along the guide groove. One end of the battery expansion module is inserted and fixed to the male connector on the first limiting member, and the other end is abutted against the second limiting member.

2. The DC uninterruptible power supply of claim 1, wherein, The expansion port is provided in a plurality of ways, and the number of the second limiting member is equal to the number of the expansion port; the second limiting member is arranged in parallel and is arranged opposite to the first limiting member.

3. The DC uninterruptible power supply of claim 2, wherein, The number of guide grooves is equal to the number of expansion ports and they correspond one-to-one; the opening of each guide groove faces the corresponding expansion port, and the center line of each guide groove is perpendicular to the first limiting member.

4. The DC uninterruptible power supply of claim 3, wherein, The length of the first limiting member is greater than the sum of the widths of all the guide slots. The number of male seats on the first limiting member is equal to the number of guide slots and corresponds one-to-one. Each male seat is electrically connected to the PCBA.

5. The DC uninterruptible power supply of claim 4, wherein, The first limiting member has a first base plate fixing member on the side facing the guide groove, and the first base plate fixing member is disposed on the inner bottom wall of the housing; the bottom of the second limiting member extends to the side facing the guide groove to form a second base plate fixing member; the battery expansion module is inserted and fixed at one end of the male seat and abuts against the first base plate fixing member, and at the other end and abuts against the second base plate fixing member.

6. The DC uninterruptible power supply of claim 1, wherein, The battery expansion module is a 100Wh battery.

7. The DC-UPS of any of claims 1 to 6, characterized in that The battery module and the battery expansion module are connected in parallel.

8. The DC uninterruptible power supply according to any one of claims 1 to 6, characterized in that, The housing is also equipped with a display screen that is electrically connected to the PCBA.

9. The DC uninterruptible power supply of claim 8, wherein, The housing is also provided with a universal socket that is electrically connected to the PCBA.

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