Battery cluster

Abstract

The present application discloses a battery cluster, comprising: a battery plug-in box, an insertion end thereof being provided with a first limiting structure; and a battery cabinet body, provided with an insertion opening and further provided with at least one insertion slot. Inner side walls of the insertion slot are each provided with a slot track and a guide rib. The battery plug-in box is inserted from the insertion opening and slides along the slot track. One end of each guide rib close to the insertion opening is provided with a chamfer. One end of the insertion slot away from the insertion opening is provided with a second limiting structure corresponding to the first limiting structure. When the battery plug-in box is inserted from the insertion opening such that the battery plug-in box completely enters the insertion slot, the guide ribs contact two sides of the battery plug-in box, and the first limiting structure and the second limiting structure are fixed in a limiting manner.

Description

A battery cluster

[0001] The present application claims priority to the Chinese patent application No. 2024219804757 filed on August 14, 2024 with the China Patent Office, the whole content of the above application is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of battery energy storage equipment, in particular to a battery cluster. BACKGROUND

[0003] In the current battery energy storage system or electric vehicle battery management system, the battery insertion box as a key component, its insertion into the cabinet of the battery cluster and the effective fixation process is crucial. TECHNICAL PROBLEM

[0004] Firstly, the battery insertion box in the related art generally lacks a limiting guide structure when being inserted into the cabinet. This deficiency leads to the difficulty in accurately aligning the battery insertion box with the positioning port of the cabinet during the insertion process. The positioning port is usually located at the opening of the cabinet, which increases the difficulty of fixing the battery insertion box through screws. Due to the inaccuracy of manual alignment, it is often necessary to adjust multiple times or even re-insert to ensure that the screws can pass through the pre-set hole position correctly, which not only reduces the installation efficiency, but also increases the risk of operation failure, which may cause damage to the battery insertion box or the cabinet.

[0005] Secondly, most of the cabinets in the related art adopt a simple frame structure. Although this structure reduces the weight and manufacturing cost to a certain extent, it has deficiencies in providing sufficient support and stability. Especially after the battery insertion box is pulled out and the screws are fixed, due to the inherent limitations of the frame structure, the battery insertion box may still shake inside the cabinet. This shaking not only affects the overall stability of the battery system, but also may intensify during the transportation of the cabinet, causing mechanical stress to the battery insertion box and connecting components, and further causing safety hazards such as breakage, deformation or short circuit, etc. TECHNICAL SOLUTION

[0006] The application provides a battery cluster, comprising: a battery plug-in box, one end of which is an insertion end, provided with a first limiting structure; a battery cabinet body, having an insertion opening, at least one insertion slot for inserting the battery plug-in box is provided inside the battery cabinet body from the insertion opening, the insertion slot includes two opposite side walls, the side walls are provided with slot tracks and guide ribs, the battery plug-in box is inserted from the insertion opening and slides along the slot tracks, one end of the guide rib close to the insertion opening is provided with a chamfer, and one end of the insertion slot away from the insertion opening is provided with a second limiting structure corresponding to the first limiting structure; when the battery plug-in box is inserted from the insertion opening until it is completely inserted into the insertion slot, the guide rib abuts against both sides of the battery plug-in box, and the first limiting structure and the second limiting structure are limited and fixed. Advantages

[0007] 1. Improved installation accuracy and efficiency: The slot tracks and guide ribs in the insertion slot provide a clear insertion path and guiding effect for the battery plug-in box, allowing it to be inserted smoothly and accurately into the insertion slot of the cabinet body. This greatly reduces the need for multiple adjustments and reinsertions due to inaccurate manual alignment, improving installation efficiency. At the same time, the design of the guide rib ensures that the battery plug-in box can slide smoothly during insertion, reducing the risk of damage caused by friction and collision, further improving the success rate of installation.

[0008] 2. Enhanced stability: When the battery plug-in box is completely inserted into the insertion slot, the guide rib abuts tightly against both sides of the battery plug-in box, effectively limiting the shaking phenomenon of the battery plug-in box in the insertion slot. This stable connection structure improves the stability of the battery plug-in box in the insertion slot, maintaining good positioning even in a vibrating or impact environment. Through the cooperation of the first limiting structure and the second limiting structure, the fixing effect of the battery plug-in box in the insertion slot is further enhanced, preventing displacement or falling of the battery plug-in box during transportation or use, achieving double guiding and positioning effects with the guide rib.

[0009] 3. Improved safety: The stable connection structure of the battery plug-in box reduces the mechanical stress on the battery plug-in box and connecting components, reducing the probability of safety hazards such as wire breakage, poor contact, or short circuit. Double guiding and fixing design ensures the stability of the battery plug-in box during transportation, avoiding damage or failure caused by shaking, improving the transportation safety of the battery cluster.

[0010] 4. Prolonged service life: By reducing the risk of damage caused by improper installation or shaking, the overall service life of the battery plug-in box and the battery cluster is extended. The stable connection structure reduces wear and fatigue caused by vibration or impact, further improving the durability of the battery cluster.

[0011] 5. Simplify maintenance operation: when the battery plug-in box needs to be maintained or replaced, the stable connection structure and clear disassembly path make the operation more convenient and fast. Reduce the risk of damage or failure caused by improper disassembly, reduce maintenance cost and time. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a schematic diagram of the battery plug-in box of the embodiment of the present application;

[0013] Fig. 2 is a schematic diagram of the battery cabinet and the battery plug-in box of the embodiment of the present application;

[0014] Fig. 3 is an enlarged view of area A in Fig. 2;

[0015] Fig. 4 is an enlarged view of area B in Fig. 2;

[0016] Fig. 5 is a schematic diagram of the front structure of the battery cabinet of the embodiment of the present application.

[0017] Wherein, the meaning of the reference signs is as follows: 1, battery plug-in box; 11, plug-in end; 111, first limiting structure; 1111, positioning hole; 12, pull-out end; 121, first fixing structure; 1211, fixed screw hole; 13, pull-out end plate; 14, plug-in end plate; 15, bottom plate; 16, side plate; 17, triangular rib; 2, battery cabinet; 21, insertion port; 211, second fixing structure; 2111, fixed stud; 22, insertion slot; 221, second limiting structure; 2211, positioning pin; 23, side wall; 231, insertion slot track; 232, guide rib; 24, top wall; 25, bottom wall; 26, back plate; 3, fixed screw; 4, baffle. Embodiment of the present application

[0018] Embodiment 1 of the present application is shown in FIGS. 1-5, which discloses a battery cluster, comprising a battery plug-in box 1 and a battery cabinet 2, the battery cabinet 2 has a plug-in port 21, at least one slot 22 for inserting the battery plug-in box 1 is arranged in the battery cabinet 2 from the plug-in port 21, that is, the ratio of the number of plug-in ports 21 to the number of slots 22 is 1:n, n≥1; the battery cabinet 2 is surrounded by a top wall 24, a bottom wall 25, a back plate 26 and two side walls 23, so that there are two side walls 23 for each slot 22, the side wall 23 is provided with a slot rail 231 and a guide rib 232 for each slot 22, the slot rail 231 is used to abut the bottom of the battery plug-in box 1 and serves as a support, and the guide rib 232 is used to limit the two sides of the battery plug-in box 1, specifically, one end of the battery plug-in box 1 is an insertion end 11, and the other end is a pull-out end 12, the insertion end 11 is provided with a first limiting structure 111, the battery plug-in box 1 is inserted into the slot 22 from the plug-in port 21 and slides along the slot rail 231, one end of the guide rib 232 close to the plug-in port 21 is provided with a chamfer, and one end of the slot 22 away from the plug-in port 21 is provided with a second limiting structure 221 corresponding to the first limiting structure 111, it should be noted that the corresponding here means that the first limiting structure 111 can be adapted to the second limiting structure 221 to achieve the limiting effect in the insertion direction; when the battery plug-in box 1 is inserted from the plug-in port 21 until it is completely inserted into the slot 22, the guide rib 232 abuts the two sides of the battery plug-in box 1, and the first limiting structure 111 and the second limiting structure 221 are limited and fixed.

[0019] Wherein, the chamfer of the guide rib 232 can be a slope or an arc surface, so that the guide rib 232 is close to the plug-in port 21, and the smaller the thickness of the guide rib 232 is, thereby reserving a mounting position for the insertion end 11 of the battery plug-in box 1, according to the guiding effect of the guide rib 232, the battery plug-in box 1 is smoothly inserted into the slot 22, improving the convenience of insertion and ensuring the stability of the battery plug-in box 1 during the insertion process. The chamfer design of one end of the guide rib 232 close to the plug-in port 21 helps the battery plug-in box 1 to smoothly enter the slot 22, reduces friction and collision, and when the battery plug-in box 1 is completely inserted into the slot 22, the guide rib 232 abuts the two sides of the battery plug-in box 1, increasing the stability of the plug-in box in the slot 22 and reducing the shaking phenomenon, while improving the success rate of the alignment of the first limiting structure 111 and the second limiting structure 221, after the successful limiting and fixing of the two, the stability can be maintained even during transportation, reducing the risk of mechanical stress on the battery plug-in box 1 and connecting components, thereby improving the transportation safety. After double guiding and fixing, the overall stability of the battery plug-in box 1 after insertion is improved, the fixing process is simplified, and the overall performance and safety of the battery cluster are improved.

[0020] In some embodiments, one of the first limiting structure 111 and the second limiting structure 221 is a positioning hole 1111, and the other is a positioning pin 2211. The positioning hole 1111 and the positioning pin 2211 are matched through precise tolerance, which can ensure that the battery plug-in box 1 can be positioned with high precision when being inserted into the battery cabinet body 2. This positioning method helps to reduce installation problems caused by inaccurate alignment, improves installation efficiency, and eliminates errors caused by manual operation, ensuring that the same precision standard is achieved every time. After the positioning pin 2211 is inserted into the positioning hole 1111, the movement freedom of the battery plug-in box 1 in the slot 22 can be effectively limited, preventing it from shaking in the vertical or horizontal direction, and also preventing the battery plug-in box 1 from accidentally falling off when subjected to external force, thereby improving the safety and reliability of the entire battery cluster. In some embodiments, the battery plug-in box 1 includes a pull-out end plate 13, an insertion end plate 14, a bottom plate 15, and two side plates 16. In order to reserve a position for the first limiting structure 111 on the insertion end plate 14, the installation distance between the two side plates 16 is less than the width of the bottom plate 15, which is beneficial for the locking connection between the side plates 16 and the pull-out end plate 13 and the insertion end plate 14, and the first limiting structure 111, which is a positioning hole 1111, can be arranged at both ends of the insertion end plate 14. The end of the slot track 231 away from the insertion port 21 is connected with a baffle 4, which abuts against the insertion end 11 of the battery plug-in box 1. The baffle 4 serves as the end limit of the slot track 231, ensuring that the battery plug-in box 1 can only reach a predetermined depth during insertion, avoiding collision with the back plate 26 of the battery cabinet body 2. The baffle 4 is provided with a second limiting structure 221, which is a positioning pin 2211. When the battery plug-in box 1 is fully inserted, the positioning pin 2211 of the baffle 4 can be inserted into the positioning hole 1111 on the insertion end plate 14, and the baffle 4 abuts against the insertion end plate 14 of the battery plug-in box 1. In some embodiments, in order to avoid the existence of useless space between the side plates 16 and the bottom plate 15, a triangular rib 17 is arranged between the outside of the side plates 16 and the bottom plate 15, which improves the strength of the battery plug-in box 1. Similarly, reinforcing ribs can also be arranged on the pull-out end plate 13 and the insertion end plate 14 in a horizontal and vertical staggered manner, and multiple slot structures can be formed between the reinforcing ribs, which is more conducive to accommodating and hiding the screw head and reducing the risk of collision, loosening, or damage.

[0021] In some embodiments, the end of the positioning pin 2211 is provided with a chamfer, which can reduce the contact area at the entrance of the positioning hole 1111, thereby reducing the friction during insertion, making it easier and smoother for the positioning pin 2211 to enter the positioning hole 1111, acting as a guide to direct the positioning pin 2211 in the correct direction into the positioning hole 1111, helping to achieve more accurate positioning; during the insertion process, the chamfer design can prevent the sharp edge of the positioning pin 2211 from scratching the inner wall of the positioning hole 1111, protecting the positioning hole 1111 from damage, improving the accuracy and reliability of installation, and prolonging its service life.

[0022] In some embodiments, the axis direction of the positioning hole 1111 and the axis direction of the positioning pin 2211 are parallel to the slot track 231. Since the axis direction of the positioning hole 1111 and the axis direction of the positioning pin 2211 are parallel to the slot track 231, when the battery insertion box 1 slides along the slot track 231, the positioning pin 2211 can smoothly enter the positioning hole 1111 without unnecessary resistance or jamming, thereby ensuring the smoothness of the insertion process; more effectively limiting the movement freedom of the battery insertion box 1 in the slot 22, reducing its shaking in the vertical or horizontal direction, and the parallel structure can more evenly transfer and distribute the load, improving the overall carrying capacity and impact resistance of the battery cluster.

[0023] In some embodiments, to improve the fixing effect after the battery insertion box 1 is inserted, a first fixing structure 121 is provided on the pull-out end 12, and a second fixing structure 211 corresponding to the first fixing structure 121 is provided on the slot track 231. It should be noted that the corresponding here means that the second fixing structure 211 can adapt to the first fixing structure 121, i.e. they can cooperate to achieve the fixing effect. The first fixing structure 121 and the second fixing structure 211 are fixedly connected, and the cooperation of the first fixing structure 121 and the second fixing structure 211 can fix the pull-out end 12 and the insertion port 21, preventing the battery insertion box 1 from sliding out of the insertion port 21, effectively preventing the battery insertion box 1 from shaking or falling off during transportation, installation or use, and enhancing the overall stability.

[0024] In some embodiments, one of the first and second fixing structures 121 and 211 is a fixing hole 1211, and the other is a fixing stud 2111. A fixing screw 3 is arranged between the fixing hole 1211 and the fixing stud 2111. The fixing hole 1211 and the fixing stud 2111 are connected by the fastening action of the fixing screw 3, forming a high-strength connection. This connection mode can withstand greater tensile force and shear force, ensuring the stability of the battery box 1 in the battery cabinet 2. The screw locking action can effectively prevent the battery box 1 from loosening due to factors such as vibration and impact during use, improving the reliability of the connection. At the same time, the installation and removal process of the battery box 1 becomes relatively simple, reducing maintenance difficulty and cost, and improving the maintainability of the equipment. The combination structure of the fixing hole 1211, the fixing stud 2111, and the fixing screw 3 is relatively simple, and the manufacturing cost is relatively low, which helps to improve the competitiveness of the product. In some embodiments, the part of the recessed groove structure on both sides of the pull-out end plate 13 that is in contact with the bottom plate 15 is provided with a first fixing structure 121, which is a fixing hole that penetrates the bottom plate 15 and the pull-out end plate 13. The end of the slot 22 guide rail close to the insertion port 21 is provided with a second fixing structure 211, which is a fixing stud 2111. The fixing hole and the fixing stud 2111 are provided with a fixing screw 3, which connects the bottom plate 15, the pull-out end plate 13, and the slot 22 guide rail, achieving the fixing effect.

[0025] In some embodiments, the fixing hole of the first fixing structure 121 can also be arranged on the bent part at both ends of the pull-out end plate 13, and the fixing stud 2111 of the second fixing structure 211 can be arranged on the side wall 23 of the battery cabinet 2. The pull-out end plate 13 and the battery cabinet 2 are fixed by the connection of the fixing screw 3, achieving the fixing effect. In some embodiments, a handle can be provided on the pull-out end plate 13 to facilitate the user to pull out the battery box 1.

[0026] Therefore, the axial direction of the fixing hole 1211, the axial direction of the fixing stud 2111, and the axial direction of the fixing screw 3 are perpendicular to the slot rail 231, ensuring that the battery box 1 can remain stable when subjected to lateral force and is not easy to deviate or shake, reducing loosening and damage caused by vibration; the perpendicular axial direction allows the installer to clearly identify the correct installation direction when installing the fixing screw 3, thereby avoiding installation problems caused by incorrect direction; when the battery box 1 needs to be maintained or replaced, the vertically arranged fixing hole 1211 and fixing screw 3 make the disassembly process more simple and direct.

[0027] In some embodiments, the distance between the two guide ribs 232 corresponding to the two side walls 23 in the slot 22 is set as L1, and it is noted that the corresponding here refers to the two guide ribs 232 on the same horizontal plane of the two side walls 23. The distance between the two side edges of the insertion port 21 parallel to the side wall 23 is set as L2, and the length of the insertion end 11 or the length of the pull-out end 12 of the battery insertion box 1 is set as L3. Then L2 > L1 = L3. Since L1 is equal to L3, when the battery insertion box 1 is inserted into the slot 22, the two sides thereof will smoothly slide along the guide ribs 232 in the slot 22 until it is completely in place, avoiding installation difficulties or damage caused by position deviation. The design of L2 being greater than L1 provides sufficient space for the insertion of the battery insertion box 1, preventing the phenomenon of being stuck due to too tight size. This helps to simplify the installation process and improve the installation efficiency. When the battery insertion box 1 is completely inserted into the slot 22, the two sides thereof will be tightly matched with the guide ribs 232 in the slot 22 to form a stable connection. This design helps to reduce the shaking and displacement of the battery insertion box 1 in the slot 22, improving the reliability of the connection.

[0028] It is noted that in some embodiments, in the slot 22, each battery insertion box 1 corresponds to at least two slot tracks 231, that is, one battery insertion box 1 is subjected to force from at least two slot tracks 231 located on the same horizontal plane. The insertion end 11 and the pull-out end 12 of each battery insertion box 1 are at least in contact with two guide ribs 232, and in some embodiments, there are 3-4 guide ribs 232. Through the support of at least two slot tracks 231 and at least two guide ribs 232, the battery insertion box 1 is more stably supported in the slot 22. This multi-point support structure can significantly improve the stability of the battery insertion box 1 in the slot 22, preventing it from shaking or deviating when subjected to external force. The design of multiple slot tracks 231 and guide ribs 232 enables the battery insertion box 1 to be uniformly stressed during insertion, avoiding damage caused by excessive stress on a single point. At the same time, after the battery insertion box 1 is completely inserted, its weight can be better dispersed, reducing the burden on a single support point.

[0029] The operation principle of the present application is as follows:

[0030] The insertion end 11 of the battery plug-in box 1 is assembled towards the insertion slot 22 inside the insertion port 21, and the number of battery plug-in lines that can be installed is determined according to the number of insertion slots 22. When the insertion end 11 of the battery plug-in box 1 is inserted into the insertion port 21, it is convenient to align due to the fact that L2 is greater than L1. After entering the insertion slot 22, the side plate 16 of the battery plug-in box 1 is gradually clamped by the guiding effect of the guide ribs 232. When the insertion is complete, the positioning hole 1111 of the insertion end 11 of the battery plug-in box 1 is connected with the positioning pin 2211 on the baffle 4. Due to the chamfer at the end of the positioning pin 2211, the second guiding and positioning effect is achieved. Subsequently, the further fixation of the battery plug-in box 1 is realized by the fixed screw 3 passing through the fixed hole and the fixed stud 2111.

[0031] In summary, the battery cluster provided by the present application has the following technical effects:

[0032] 1. Improved installation accuracy and efficiency: The insertion slot track 231 and the guide rib 232 in the insertion slot 22 provide a clear insertion path and guiding effect for the battery plug-in box 1, enabling it to be smoothly and accurately inserted into the insertion slot 22 of the cabinet. This greatly reduces the need for multiple adjustments and reinsertions due to inaccurate manual alignment, improving installation efficiency. At the same time, the design of the guide rib 232 ensures that the battery plug-in box 1 can slide smoothly during insertion, reducing the risk of damage caused by friction and collision, further improving the success rate of installation.

[0033] 2. Enhanced stability: When the battery plug-in box 1 is completely inserted into the insertion slot 22, the guide rib 232 tightly abuts the two sides of the battery plug-in box 1, effectively limiting the shaking phenomenon of the battery plug-in box 1 in the insertion slot 22. This stable connection structure improves the stability of the battery plug-in box 1 in the insertion slot 22, and can maintain good positioning even in a vibrating or impacting environment. The use of the first limiting structure 111 and the second limiting structure 221 further enhances the fixing effect of the battery plug-in box 1 in the insertion slot 22, preventing displacement or falling of the battery plug-in box 1 during transportation or use, and achieving double guiding and positioning effect with the guide rib 232.

[0034] 3. Improved safety: The stable connection structure of the battery plug-in box 1 reduces the mechanical stress on the battery plug-in box 1 and the connecting components, reducing the probability of safety hazards such as plug-in line breakage, poor contact, or short circuit. The double guiding and fixing design ensures the stability of the battery plug-in box 1 during transportation, avoiding damage or failure caused by shaking, and improving the transportation safety of the battery cluster.

[0035] 4. Extended service life: By reducing the risk of damage due to improper installation or shaking, the overall service life of the battery box 1 and the battery cluster is extended. The stable connection structure reduces wear and tear and fatigue caused by vibration or impact, further improving the durability of the battery cluster.

[0036] 5. Simplified maintenance operation: When maintenance or replacement of the battery box 1 is required, the stable connection structure and clear disassembly path make the operation more convenient and fast. Reducing the risk of damage or failure caused by improper disassembly, reducing maintenance cost and time.

Claims

1. A battery cluster comprising: a battery plug-in box (1) having a plug-in end (11) provided with a first limiting structure (111) at one end; a battery cabinet body (2) having a plug-in opening (21) from which at least one slot (22) for inserting the battery plug-in box (1) is provided inside the battery cabinet body (2), the slot (22) comprising two opposite side walls (23) inside, the side walls (23) being provided with a slot rail (231) and a guide rib (232), the battery plug-in box (1) being inserted from the plug-in opening (21) and sliding along the slot rail (231), the guide rib (232) being provided with a chamfer at one end close to the plug-in opening (21), and the slot (22) being provided with a second limiting structure (221) corresponding to the first limiting structure (111) at one end away from the plug-in opening (21); when the battery plug-in box (1) is inserted from the plug-in opening (21) until it is fully inserted into the slot (22), the guide rib (232) abuts against both sides of the battery plug-in box (1), and the first limiting structure (111) and the second limiting structure (221) are fixedly limited.

2. A battery cluster according to claim 1, wherein, One of the first limiting structure (111) and the second limiting structure (221) is a positioning hole (1111), and the other is a positioning pin (2211).

3. A battery cluster according to claim 2, wherein, The end of the positioning pin (2211) is provided with a chamfer.

4. A battery cluster according to claim 2, wherein, The axis direction of the positioning hole (1111) and the axis direction of the positioning pin (2211) are parallel to the slot rail (231).

5. The battery cluster of claim 1, wherein, The end of the battery plug-in box (1) opposite to the plug-in end (11) is a pull-out end (12), the pull-out end (12) is provided with a first fixing structure (121), the slot rail (231) is provided with a second fixing structure (211) corresponding to the first fixing structure (121), and the first fixing structure (121) and the second fixing structure (211) are fixedly connected.

6. A battery string according to claim 5, wherein, One of the first fixing structure (121) and the second fixing structure (211) is a fixed screw hole (1211), and the other is a fixed stud (2111), and a fixed screw (3) is assembled between the fixed screw hole (1211) and the fixed stud (2111).

7. A battery string according to claim 6, wherein, The axis direction of the fixed screw hole (1211), the axis direction of the fixed stud (2111), and the axis direction of the fixed screw (3) are perpendicular to the slot rail (231).

8. A battery string according to any one of claims 1-7, wherein, The distance between the guide ribs (232) corresponding to the two side walls (23) in the slot (22) is set as L1, the distance between the two side edges of the plug-in opening (21) parallel to the side walls (23) is set as L2, and the length of the plug-in end (11) or the length of the pull-out end (12) of the battery plug-in box (1) is set as L3, then L2 > L1 = L3.

9. A battery string according to any one of claims 1-7, wherein, The end of the slot rail (231) away from the plug-in opening (21) is connected with a baffle (4), and the baffle (4) abuts against the plug-in end (11) of the battery plug-in box (1).

10. A battery string according to any one of claims 1-7, wherein, Each of the battery plug-in boxes (1) corresponds to at least two slot tracks (231) in the slot (22); and the insertion end (11) and the pulling-out end (12) of each of the battery plug-in boxes (1) are in contact with at least two guide ribs (232) on both sides.

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