An emergency base station power supply having an integrated tray structure

Abstract

The utility model relates to a kind of standby power base station power supply with integrated tray structure, including power supply tray and the battery pack and filler block being set in its internal all space;Power supply tray is made of bottom plate, three side fences and front baffle, bottom plate and three side fences are integrally formed;Fence includes side plate and the upper and lower extension of its upper and lower bending parts with side plate equal length, upper and lower bending parts are located in the side of side plate away from the center of power supply tray.Bend part reserved space is formed in the main body outside of the power supply tray of placing battery pack when power supply tray is placed into base station plug-in box, so that buffer space is left between core battery pack and base station plug-in box, improve its anti-external impact performance, protect the safety of core battery pack.Simultaneously, bottom plate and three side fences of integrated bending forming, in the weak strength of welding heat affected zone is avoided simultaneously, realize mechanical property leap, bending strength is improved compared with traditional stitch-welded structure, significantly reduce cracking risk in drop test.

Description

Technical Field

[0001] This utility model relates to the field of backup power base station power supplies, and in particular to a backup power base station power supply with an integrated tray structure. Background Technology

[0002] With the expansion of 5G base station construction, the demand for high-energy-density, long-life, and low-cost CTP (Cell to Pack) battery integration technology for backup power systems is becoming increasingly urgent. Currently, CTP (Central Photovoltaic Platform) power supplies are generally manufactured using a multi-piece aluminum alloy sheet welding process. While this technology has initially achieved the goal of direct cell integration, it has revealed significant drawbacks in practical applications: First, the manufacturing process is highly complex, requiring the welding of numerous parts per tray. The welding heat input leads to significant annealing strength loss in the base material, and the probability of weld cracking in drop tests is much higher than in non-welded areas, seriously threatening the reliability of base station equipment in extreme environments. Second, structural performance is limited. Excessive porosity in aluminum alloy welds can easily cause coolant leakage. The cumulative tolerances of multiple parts joining cause deviations in tray flatness, and thickening the material to compensate for strength loss increases tray weight, contradicting the lightweight goal of CTP. Third, cost competitiveness is low, hindering market competition. The welding process requires investment in high-value welding equipment, resulting in higher unit processing costs than more integrated solutions. Furthermore, a certain percentage of welding defects leads to rework, further increasing maintenance costs. Increased weld resistivity also leads to increased power loss. Existing technologies still struggle to meet the requirements of base station backup power systems for high-strength, high-sealing, and low-cost trays. Utility Model Content

[0003] In view of the problems of numerous parts, complex processing procedures, weakened strength and high cost in the power supply welding process in the existing technology, this utility model provides a backup base station power supply with an integrated tray structure, including a power supply tray and a battery pack disposed inside it.

[0004] The power tray consists of a base plate, three side panels, and a front baffle. The base plate and the three side panels are integrally formed. The side panels include side panels and upper and lower bent portions that extend from the side panels and are of the same length. The upper and lower bent portions are located on the side of the side panel away from the center of the power tray.

[0005] The upper bending section includes a first upper thin plate and a second upper thin plate, and the lower bending section includes a first lower thin plate and a second lower thin plate; the second upper thin plate is connected to the side plate through the first upper thin plate, and the second lower thin plate is vertically fixed to the bottom plate and connected to the side plate through the first lower thin plate.

[0006] Both the second upper thin plate and the second lower thin plate are parallel to the side plate and are on the same plane.

[0007] Furthermore, at least one of the first upper thin plate and the first lower thin plate is perpendicular to the side plate.

[0008] Furthermore, the second upper thin plate is located below the first upper thin plate, and the slot formed by the two plates and the side plate points towards the center of the power supply tray.

[0009] Furthermore, the battery pack includes a plurality of battery cells and electrode plates welded to the upper part of the battery cells, and the plurality of battery cells are arranged in series or in parallel in the power tray.

[0010] Furthermore, the power supply tray is also provided with a filling block, which is made of galvanized sheet and has the strength to withstand an expansion force of 20kN or more from the battery cell. The filling block is fixed to the power supply tray by bolts.

[0011] Furthermore, a pressure plate is provided on the upper part of the battery pack, and the pressure plate is fixed to the power tray.

[0012] Furthermore, the pressure plate is fixed to the power supply tray by bolts.

[0013] Furthermore, a fixing plate is provided at the contact point between the front baffle and the enclosure, and the front baffle is connected to the fixing plate and the bottom plate respectively by bolts.

[0014] Furthermore, bolt holes are provided on the base plate, the three-sided surrounding plate, the second upper thin plate, and the second lower thin plate.

[0015] Compared with the prior art, this utility model has the following beneficial effects:

[0016] By incorporating upper and lower bends extending beyond the side panels on the outer ring of the structure, a pre-formed space for bending is created around the outer edge of the power tray containing the battery pack when it is placed into the base station enclosure. This provides a buffer space between the core battery pack and the base station enclosure, enhancing its resistance to external impacts and protecting the core battery pack. Simultaneously, the one-piece bent base plate and three-sided panels achieve a significant leap in mechanical properties while avoiding the weakening of the welded heat-affected zone. The bending strength is higher than that of traditional welded structures, significantly reducing the risk of cracking during drop tests. This technology allows for the integration of numerous components into a single-piece molding process, simplifying manufacturing procedures and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is an exploded view of the power supply for a backup base station with an integrated tray structure according to the present invention.

[0018] Figure 2This is an assembly structure diagram of a backup base station power supply with an integrated tray structure according to the present invention.

[0019] Figure 3 This is a diagram showing the tray structure of a backup power base station power supply with an integrated tray structure according to the present invention.

[0020] Figure 4 This is a schematic diagram of a fixing plate for a backup power base station with an integrated tray structure according to the present invention.

[0021] In the diagram: 1. Tray; 11. Base plate; 12. Enclosure plate; 13. Side plate; 14. Upper bending section; 141. First upper thin plate; 142. Second upper thin plate; 15. Lower bending section; 151. First lower thin plate; 152. Second lower thin plate; 2. Filler block; 3. Battery cell; 4. Electrode; 5. Pressure plate; 6. Front baffle; 7. Fixing plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. The terms "upper," "lower," "front," "rear," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or part referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0024] like Figures 1-3 As shown, a backup base station power supply with an integrated tray structure includes a power tray 1 and a battery pack disposed therein; the power tray 1 is composed of a base plate 11, three side panels 12 and a front baffle 6, and the base plate 11 and the three side panels 12 are integrally formed (e.g., using a CNC bending machine).

[0025] The enclosure 12 includes a side panel 13 and an upper bent portion 14 and a lower bent portion 15 extending vertically and vertically from the side panel 13, which are of the same length as the side panel 13. The upper bent portion 14 and the lower bent portion 15 are located on the side of the side panel 13 away from the center of the pallet.

[0026] The upper bending section 14 includes a first upper thin plate 141 and a second upper thin plate 142, and the lower bending section 15 includes a first lower thin plate 151 and a second lower thin plate 152. The second upper thin plate 142 is connected to the side plate 13 through the first upper thin plate 141, and the second lower thin plate 152 is vertically fixed to the bottom plate 11 and connected to the side plate 13 through the first lower thin plate 151. Both the second upper thin plate 142 and the second lower thin plate 152 are parallel to the side plate 13 and are on the same plane.

[0027] By setting upper bends 14 and lower bends 15 extending beyond the outer edge of the side plate 13 on the outer ring of the structure, a pre-reserved space for the bends is formed around the outer edge of the main body of the power tray 1, which holds the battery pack, when it is placed into the base station box. This creates a buffer space between the core battery pack and the base station box, improving its resistance to external impacts and protecting the safety of the core battery pack. Simultaneously, the base plate 11 and the three-sided surrounding plates 12, formed by integrated bending using a CNC bending machine, achieve a significant leap in mechanical properties while avoiding weakening of the weld heat-affected zone. The bending strength is higher than that of traditional welded structures, significantly reducing the risk of cracking during drop tests. This technology allows for the integration of numerous parts into a single-piece forming process, simplifying the manufacturing process and improving production efficiency.

[0028] In a preferred structural stress distribution, at least one of the first upper thin plate 141 and the first lower thin plate 151 is perpendicular to the side plate 13, which can better ensure the stability of the bending section support. Figure 3 As shown, in this embodiment, the first upper thin plate 141 is perpendicular to the side plate 13.

[0029] The second upper thin plate 142, which is fixed to the base station box, can be positioned above or below the first upper thin plate 141. However, for a more optimal structural stress distribution, such as... Figure 3 As shown, the second upper thin plate 142 is located below the first upper thin plate 141, and the slot formed by the two plates and the side plate 13 points towards the center of the power tray 1.

[0030] The battery pack includes several cells 3 and electrode plates 4 welded to the top of the cells 3. The cells 3 are arranged in series or parallel within the power supply tray 1. The battery pack adopts a module-less (CTP) design, eliminating the need for a brazed frame around the cells and large module fixing beams. By directly integrating several cells 3 in series and parallel within the power supply tray, performance and efficiency are significantly improved: space utilization is enhanced, and the greatly reduced number of components leads to increased production efficiency.

[0031] Depending on the user's different power requirements, when the space inside the power tray 1 is not completely filled by the battery cells 3, a filler block 2 is also provided inside the power tray 1. The filler block 2 is made of galvanized sheet and is used to fill the remaining space after the battery pack is placed inside the power tray 1 to ensure the relative fixation between the battery cells 3. The filler block 2 has high strength and can withstand an expansion force of 20kN or more from the battery cells 3, preventing the expansion of the battery cells 3 from squeezing and deforming the filler block 3. The filler block 2 is fixed to the power tray 1 with bolts.

[0032] A pressure plate 5 is provided on the upper part of the battery pack. The pressure plate 5 is fixed to the power tray 1 to limit the displacement of the battery pack in the vertical direction (z direction).

[0033] Generally, the pressure plate 5 is fixed to the power supply tray 1 by bolts.

[0034] like Figure 4 As shown, a fixing plate 7 is provided at the contact point between the front baffle 6 and the surrounding plate 12. The front baffle 6 is connected to the fixing plate 7 and the bottom plate 11 by bolts. The fixing plate 7 can be fixed to the side plate 13, the first upper thin plate 141, and the first lower thin plate 151 by welding. As a more preferred method, one side of the fixing plate 7 is integrally formed with the side plate 13, and its upper and lower parts are welded to the first upper thin plate 141 and the first lower thin plate 151 respectively for sealing.

[0035] Bolt holes are provided on the base plate 11, the three-sided enclosure 12, the second upper thin plate 142, and the second lower thin plate 152 to facilitate fixing after being placed into the base station box (e.g., by means of bolts).

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of implementation of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and all such improvements and modifications should be covered within the protection scope of this utility model.

Claims

1. An emergency base station power supply having an integrated tray structure, characterized by, Includes a power tray (1) and a battery pack disposed therein; The power tray (1) is composed of a base plate (11), three side panels (12) and a front baffle (6), wherein the base plate (11) and the three side panels (12) are integrally formed; The enclosure (12) includes a side panel (13) and an upper bent portion (14) and a lower bent portion (15) extending vertically and vertically with the same length as the side panel (13). The upper bent portion (14) and the lower bent portion (15) are located on the side of the side panel (13) away from the center of the power tray (1). The upper bending portion (14) includes a first upper thin plate (141) and a second upper thin plate (142), and the lower bending portion (15) includes a first lower thin plate (151) and a second lower thin plate (152); the second upper thin plate (142) is connected to the side plate (13) through the first upper thin plate (141), and the second lower thin plate (152) is vertically fixed to the bottom plate (11) and connected to the side plate (13) through the first lower thin plate (151); The second upper thin plate (142) and the second lower thin plate (152) are both parallel to the side plate (13) and are on the same plane.

2. A backup power supply for a base station having an integrated tray structure according to claim 1, characterized in that, At least one of the first upper thin plate (141) and the first lower thin plate (151) is perpendicular to the side plate (13).

3. A backup power supply for a base station having an integrated tray structure according to claim 1, wherein The second upper thin plate (142) is located below the first upper thin plate (141), and the slot formed by the two plates and the side plate (13) points towards the center of the power tray (1).

4. The backup power supply for a base station with an integrated tray structure according to claim 1, characterized in that, The battery pack includes several cells (3) and electrode plates (4) welded to the upper part of the cells (3). The cells (3) are placed in the power tray (1) in series or in parallel.

5. A backup power supply for a base station having an integrated tray structure according to claim 4, wherein The power tray (1) is also provided with a filling block (2), which is made of galvanized sheet and has the strength to withstand the expansion force of the battery cell (3) greater than or equal to 20kN. The filling block (2) is fixed to the power tray (1) by bolts.

6. A backup power supply for a base station having an integrated tray structure according to claim 1, wherein A pressure plate (5) is provided on the upper part of the battery pack, and the pressure plate (5) is fixed to the power tray (1).

7. A backup power supply for a base station having an integrated tray structure according to claim 6, wherein The pressure plate (5) is fixed to the power tray (1) by bolts.

8. A backup power supply for a base station having an integrated tray structure according to claim 1, wherein A fixing plate (7) is provided at the contact point between the front baffle (6) and the enclosure (12). The front baffle (6) is connected to the fixing plate (7) and the bottom plate (11) respectively by bolts.

9. A backup power supply for a base station having an integrated tray structure according to claim 1, wherein Bolt holes are provided on the base plate (11), the three-sided enclosure plate (12), the second upper thin plate (142), and the second lower thin plate (152).

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