Bundled battery pack structure and energy storage power supply

Abstract

The present disclosure provides a bundled battery pack structure and energy storage power supply. The bundled battery pack structure includes a battery cell assembly, a bundled fixing assembly, and a power collection assembly; the bundled fixing assembly includes a heat-conducting end plate and a bundled member, the heat-conducting end plate includes two heat-conducting end plates, the two heat-conducting end plates are respectively arranged on both sides of the battery cell assembly and arranged opposite to each other, the bundled member is wrapped around the outer walls of the two heat-conducting end plates, and is wrapped at least once so that the two heat-conducting end plates jointly clamp the battery cell assembly; the two heat-conducting end plates are both provided with a heat dissipation flange on the side facing away from the battery cell assembly, and the heat dissipation flange forms a heat dissipation airflow channel. The bundled battery pack structure has a high degree of safety in use.

Description

Technical Field

[0001] The present disclosure relates to the technical field of energy storage power supplies, and in particular to a bundled battery pack structure and an energy storage power supply. Background Art

[0002] As the core component of energy storage power supply, the rationality of the battery pack design directly affects the performance and cost of the product. Traditional battery pack structures generally use metal frames to fix the battery cell components, but this solution has the following significant drawbacks:

[0003] 1. Structural redundancy and low efficiency: The assembly relies on multiple components such as bolts and clips, and the process is complicated, resulting in reduced production efficiency of energy storage power supplies and increased manufacturing costs;

[0004] 2. Excessive weight and poor portability: The weight of the metal frame significantly increases the overall weight of the energy storage power supply, greatly reducing the ease of use of the energy storage power supply;

[0005] 3. Heat dissipation is hindered and reliability is low: The frame structure blocks the surface of the battery cell components, hindering heat dissipation. Long-term use can easily cause thermal runaway of the battery cell components and even lead to safety hazards such as explosion.

[0006] To address these technical pain points, some manufacturers have already begun researching and developing new technologies. For example, patent CN205944186U discloses a structurally integrated soft-pack fast-charging battery pack. This design, through the combined design of a bracket array, a position-limiting protection plate, strapping tape, a position-limiting top plate, and a battery management system circuit board, not only improves the battery pack's production efficiency and heat dissipation efficiency, but also reduces its weight, significantly enhancing its portability.

[0007] However, in the above-mentioned battery pack, the limit protection plate and the limit top plate are respectively abutted against the soft-pack fast-charging battery assembly for limit, so that the thermal resistance of the contact surface between the soft-pack fast-charging battery assembly and the limit protection plate and the limit top plate is still large, which makes the heat dissipation efficiency of the soft-pack fast-charging battery assembly low, thereby restricting the effective conduction and dissipation of heat during the operation of the battery cell assembly, so that the battery pack is prone to local overheating of the battery cell assembly under continuous high-load operation conditions. If the temperature exceeds the safety threshold, it may induce catastrophic consequences such as thermal runaway or even explosion of the battery cell assembly, greatly reducing the safety of the battery pack. Summary of the Invention

[0008] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a bundled battery pack structure and energy storage power supply with higher safety in use.

[0009] The purpose of this disclosure is achieved through the following technical solutions:

[0010] A bundled battery pack structure is used to be installed in an energy storage power supply, and the bundled battery pack structure includes a battery cell assembly, a bundle fixing assembly, and a power collection assembly;

[0011] The bundling and fixing assembly includes a heat-conducting end plate and a bundling piece, the heat-conducting end plate includes two heat-conducting end plates, the two heat-conducting end plates are respectively arranged on both sides of the battery core assembly and are arranged opposite to each other, the number of the bundling piece is at least one, and the bundling piece is wrapped around the outer walls of the two heat-conducting end plates and is wrapped around for at least one circle, so that the two heat-conducting end plates jointly clamp and limit the battery core assembly;

[0012] A heat dissipation flange is protruded from one side of the two heat-conducting end plates facing away from the battery core assembly, and the heat dissipation flange forms a heat dissipation air flow channel.

[0013] In one embodiment, the power acquisition component includes a voltage acquisition board and a temperature acquisition component. The voltage acquisition board is installed and fixed on the heat-conducting end plate. The voltage acquisition board is also electrically connected to the battery core assembly. The voltage acquisition board is used to monitor the voltage of the battery core assembly. The temperature acquisition component is fixed to the voltage acquisition board, and the temperature acquisition component is used to monitor the temperature of the battery core assembly. The voltage acquisition board and the temperature acquisition component are both used to be electrically connected to the control board of the energy storage power supply.

[0014] In one embodiment, the two heat-conducting end plates are used to be detachably installed in the energy storage power supply.

[0015] In one embodiment, both of the heat-conducting end plates are formed with straight locking screw holes and side locking screw holes.

[0016] In one embodiment, there are multiple heat dissipation flanges, each of which is formed with air flow holes, and the multiple air flow holes together form the heat dissipation air flow channel.

[0017] In one embodiment, the heat dissipation flange includes a transverse heat dissipation flange and a longitudinal heat dissipation flange, and the number of the transverse heat dissipation flanges and the longitudinal heat dissipation flanges are both multiple, and the multiple transverse heat dissipation flanges are arranged parallel to each other and spaced apart, and the multiple longitudinal heat dissipation flanges are arranged parallel to each other and spaced apart, and the air flow holes include first air flow holes and second air flow holes, and the multiple transverse heat dissipation flanges are all formed with the first air flow holes, and the multiple first air flow holes are arranged relative to each other to jointly form a transverse air flow channel, and the multiple longitudinal heat dissipation flanges are all formed with the second air flow holes, and the multiple second air flow holes are arranged relative to each other to jointly form a longitudinal air flow channel, and the transverse air flow channel is connected to the longitudinal air flow channel and jointly forms the heat dissipation air flow channel.

[0018] In one embodiment, the power collection component further includes a conductive member, which is fixed to and electrically connected to the voltage collection board, and the tabs of the battery cell assembly are welded and fixed to the welding conductive ends of the conductive member, so that the tabs of the battery cell assembly are electrically connected to the welding conductive ends of the conductive member.

[0019] In one embodiment, the conductive part includes a welding conductive part and an electrical connection part, the welding conductive end of the conductive part is provided at the welding conductive part, the number of the welding conductive parts is multiple, and the multiple welding conductive parts are fixed and electrically connected to the voltage collection board; the battery cell assembly includes multiple battery cell units, the tabs of each battery cell unit are welded and electrically connected to each welding conductive part, and the multiple welding conductive parts are electrically connected to the electrical connection part, so that the multiple battery cell units are electrically connected through the electrical connection part.

[0020] In one embodiment, a positioning slot is formed at the conductive end of the voltage collection board, the positioning slot is adapted to the conductive member, the conductive member is snapped into the positioning slot and welded to the inner wall of the positioning slot, so that the conductive member is electrically connected to the voltage collection board.

[0021] In one embodiment, the voltage collection board is arranged opposite to the battery core assembly, and a heat dissipation connection hole is formed on the voltage collection board.

[0022] An energy storage power supply comprises a control board and the bundled battery pack structure described in any one of the above embodiments.

[0023] Compared with the prior art, the present disclosure has at least the following advantages:

[0024] 1. The above-mentioned bundled battery pack structure, since the bundling and fixing assembly includes a heat-conducting end plate and a bundling piece, the heat-conducting end plate includes two heat-conducting end plates, and the two heat-conducting end plates are respectively arranged on both sides of the battery cell assembly and arranged opposite to each other, the number of the bundling piece is at least one, and the bundling piece is wrapped around the outer walls of the two heat-conducting end plates and is wrapped at least once, so that the two heat-conducting end plates jointly clamp the limited battery cell assembly, so that the contact area between the battery cell assembly and the air is greatly increased, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure; at the same time, the two heat-conducting end plates can also dissipate heat on the contact surface between themselves and the battery cell assembly, which not only reduces the thermal resistance of the contact surface between the battery cell assembly and the heat-conducting end plates, but also can conduct heat away from the battery cell assembly, further improving the heat dissipation efficiency of the bundled battery pack structure, so that the possibility of thermal runaway of the bundled battery pack structure due to local overheating of the battery cell assembly is greatly reduced, thereby greatly improving the safety of the energy storage power supply.

[0025] 2. Since the two heat-conducting end plates are both provided with a heat dissipation flange on the side facing away from the battery cell assembly, the contact area between the heat-conducting end plates and the air is increased, and the heat dissipation efficiency of the heat-conducting end plates is improved, the heat dissipation efficiency of the bundled battery pack structure is greatly improved, and the possibility of thermal runaway of the bundled battery pack structure due to local overheating of the battery cell assembly is further reduced, thereby greatly improving the safety of the energy storage power supply; at the same time, the heat dissipation flange can also increase the thickness of the heat-conducting end plates, so as to greatly improve the overall stiffness of the heat-conducting end plates, greatly improving the bending, torsion and load-bearing capacity of the heat-conducting end plates, thereby greatly improving the structural strength of the bundled battery pack structure, thereby improving the stability of the energy storage power supply.

[0026] 3. Since the heat dissipation flange is formed with a heat dissipation airflow channel to improve the airflow efficiency of the heat dissipation flange, the air is promoted to form convection gas between the heat dissipation flanges, thereby accelerating the heat dissipation on the heat dissipation flange, making the heat dissipation efficiency of the heat-conducting end plate greatly improved, further improving the heat dissipation efficiency of the bundled battery pack structure, thereby greatly reducing the possibility of thermal runaway of the battery cell assembly, thereby greatly improving the safety of the energy storage power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a schematic structural diagram of a bundled battery pack structure according to one embodiment;

[0029] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the bundled battery pack structure shown;

[0030] Figure 3 for Figure 1 A schematic diagram of a partial structure of a bundled battery pack structure is shown;

[0031] Figure 4 for Figure 3 A schematic structural diagram of a bundled battery pack structure in another embodiment is shown;

[0032] Figure 5 for Figure 1 Another partial structural diagram of the bundled battery pack structure shown;

[0033] Figure 6 for Figure 5 A schematic structural diagram of a bundled battery pack structure in another embodiment is shown;

[0034] Figure 7 for Figure 1 Another partial structural schematic diagram of the bundled battery pack structure shown;

[0035] Figure 8 for Figure 5 A partially enlarged schematic diagram of the bundled battery pack structure shown;

[0036] Figure 9 for Figure 5 Another partially enlarged schematic diagram of the bundled battery pack structure shown;

[0037] Figure 10 for Figure 1 Another partial structural schematic diagram of the bundled battery pack structure shown;

[0038] Figure 11 for Figure 1 Another partial structural schematic diagram of the bundled battery pack structure shown;

[0039] Figure 12 for Figure 9 A partially enlarged schematic diagram of the bundled battery pack structure shown;

[0040] Figure 13 Schematic diagram of the structural model of the bundled battery pack structure.

[0041] Reference numerals: bundled battery pack structure 10; battery cell assembly 100; bundle fixing assembly 200; heat-conducting end plate 210; heat-conducting end plate 211; heat dissipation flange 2111; heat dissipation airflow channel 21111; transverse airflow channel 21111a; longitudinal airflow channel 21111b; airflow hole 21112; first airflow hole 21112a; second airflow hole 21112b; transverse heat dissipation flange 21113; longitudinal heat dissipation flange 21114; straight locking screw hole 2112; side locking screw hole 2113; positioning flange 2114; fixing flange 2115; snap-fit ​​flange 2116; first limiting groove 2117; fillet transition 21171; threaded hole 2118; second limiting groove 2119; conductive terminal mounting hole 212; end plate heat dissipation hole 213; bundling piece 220; power collection component 300; voltage collection board 310; heat dissipation connection hole 311; positioning hole 312; limiting flange 313; positioning slot 314; temperature collection component mounting hole 315; wire clamping hole 316; mounting opening 317; conductive member 320; welding conductive portion 321; electrical connection portion 322; collection terminal 330; conductive terminal 340; locking hole 341; fastener 400; cover member 500; heat dissipation hole 510; snap-fit ​​member 520; hollow area 530; reinforcing rib 540; buffer pad 600; thermal insulation sheet 700. DETAILED DESCRIPTION

[0042] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0046] like Figures 1 to 13As shown, a bundled battery pack structure 10 of an embodiment is used to be installed in an energy storage power supply. The bundled battery pack structure 10 includes a cell assembly 100, a bundled fixing assembly 200 and a power collection assembly 300; the bundled fixing assembly 200 includes a heat-conducting end plate 210 and a bundled member 220. The heat-conducting end plate 210 includes two heat-conducting end plates 211. The two heat-conducting end plates 211 are respectively arranged on both sides of the cell assembly 100 and are arranged opposite to each other. The number of the bundled member 220 is at least one, and the bundled member 220 is wrapped around the outer walls of the two heat-conducting end plates 211 and is wrapped around for at least one circle. In addition, the cell assembly 100 is located between the two heat-conducting end plates 211, and the bundled function of the bundled member 220 enables the two heat-conducting end plates 211 to jointly clamp the limited cell assembly 100. Compared with the frame-fixed battery pack, the two The heat-conducting end plates 211 not only fix and limit the battery cell assembly 100, but the two heat-conducting end plates 211 are only located on the side surfaces on opposite sides of the battery cell assembly 100, so that the contact area between the battery cell assembly 100 and the air is greatly increased, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10; at the same time, the two heat-conducting end plates 211 can also perform heat dissipation operations on the contact surfaces between the battery cell assembly 100, which not only reduces the thermal resistance of the contact surface between the battery cell assembly 100 and the heat-conducting end plates 211, but also can conduct heat from the battery cell assembly 100, further improving the heat dissipation efficiency of the bundled battery pack structure 10, and greatly reducing the possibility of thermal runaway of the bundled battery pack structure 10 due to local overheating of the battery cell assembly 100, thereby greatly improving the safety of the energy storage power supply.

[0047] Furthermore, if Figures 1 to 13As shown, in another embodiment, the two heat-conducting end plates 211 are both provided with a heat dissipation flange 2111 on one side facing away from the battery cell assembly 100, so as to increase the contact area between the heat-conducting end plates 211 and the air, thereby improving the heat dissipation efficiency of the heat-conducting end plates 211, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10, further reducing the possibility of thermal runaway of the bundled battery pack structure 10 due to local overheating of the battery cell assembly 100, thereby greatly improving the safety of the energy storage power supply; at the same time, the heat dissipation flange 2111 can also increase the thickness of the heat-conducting end plates 211, thereby greatly improving the overall stiffness of the heat-conducting end plates 211, and greatly improving the bending resistance of the heat-conducting end plates 211. , torsion resistance and load-bearing capacity, so that the structural strength of the bundled battery pack structure 10 is greatly improved, thereby improving the stability of the energy storage power supply; further, the heat dissipation flange 2111 is formed with a heat dissipation airflow channel 21111 to improve the airflow circulation efficiency of the heat dissipation flange 2111, promote the formation of convection gas between the heat dissipation flange 2111, thereby accelerating the heat dissipation on the heat dissipation flange 2111, and greatly improving the heat dissipation efficiency of the heat-conducting end plate 211, further improving the heat dissipation efficiency of the bundled battery pack structure 10, thereby greatly reducing the possibility of thermal runaway of the battery cell assembly 100, thereby greatly improving the safety of the energy storage power supply.

[0048] like Figure 2 and Figure 7 As shown, in one embodiment, the power collection assembly 300 includes a voltage collection board 310 and a temperature collection component (not shown). The voltage collection board 310 is mounted and fixed on the heat-conducting end plate 210 and is arranged opposite to the battery cell assembly 100. The voltage collection board 310 is also electrically connected to the battery cell assembly 100. The voltage collection board 310 is used to monitor the voltage of the battery cell assembly 100. The temperature collection component is fixed to the voltage collection board 310 and is used to monitor the temperature of the battery cell assembly 100. The voltage collection board 310 and the temperature collection component are both used to be electrically connected to the control board of the energy storage power supply, so that the bundled battery pack structure 10 can monitor the voltage and temperature of the battery cell assembly 100 in real time through the voltage collection board 310 and the temperature collection component, thereby further improving the safety of the energy storage power supply.

[0049] like Figures 1 to 3 As shown, in one embodiment, the heat dissipation flange 2111 and the heat conductive end plate 211 are integrally formed to improve the structural compactness of the heat conductive end plate 211 .

[0050] like Figures 1 to 3As shown, in one embodiment, the heat dissipation flange 2111 is fin-shaped to increase the heat dissipation area of ​​the heat-conducting end plate 211 and improve the heat exchange rate of the heat-conducting end plate 211, so that the heat-conducting end plate 211 can better dissipate the heat generated by the battery cell assembly 100, thereby greatly reducing the possibility of thermal runaway of the battery cell assembly 100, thereby improving the safety of the energy storage power supply.

[0051] like Figures 1 to 3 As shown, in one embodiment, the heat-conducting end plate 211 is an aluminum end plate or a copper end plate, so that the heat-conducting end plate 211 can have better heat dissipation performance, so that the heat-conducting end plate 211 can better dissipate the heat generated by the battery cell assembly 100, further reducing the possibility of thermal runaway of the battery cell assembly 100.

[0052] like Figures 1 to 3 As shown, in one embodiment, two heat-conducting end plates 211 are used to be detachably installed in the energy storage power supply, so that the bundled battery pack structure 10 can be installed in the energy storage power supply through the heat-conducting end plates 211. At the same time, it also facilitates the installation and disassembly of the bundled battery pack structure 10, thereby greatly reducing the difficulty of assembling and maintaining the energy storage power supply.

[0053] like Figures 1 to 3 As shown, in one embodiment, both heat-conducting end plates 211 are formed with straight locking screw holes 2112 and side locking screw holes 2113, so that the bundled battery pack structure 10 can not only be vertically locked and fixed in the energy storage power supply through the straight locking screw holes 2112 of the heat-conducting end plates 211, but also can be laterally locked and fixed in the energy storage power supply through the side locking screw holes 2113 of the heat-conducting end plates 211, so that the bundled battery pack structure 10 can be locked and fixed in the energy storage power supply by selecting a suitable locking method according to the type of energy storage power supply, thereby greatly improving the applicability of the bundled battery pack structure 10; at the same time, the fixing method of the bundled battery pack structure 10 being threadedly connected to the energy storage power supply through the straight locking screw holes 2112 or the side locking screw holes 2113 greatly reduces the installation and disassembly of the bundled battery pack structure 10, thereby greatly reducing the difficulty of assembling and maintaining the energy storage power supply.

[0054] like Figures 1 to 4 As shown, in another embodiment, there are multiple heat dissipation flanges 2111, and multiple heat dissipation flanges 2111 are formed with air flow holes 21112. The multiple air flow holes 21112 together form a heat dissipation airflow channel 21111 to improve the airflow efficiency of the heat dissipation flanges 2111, promote the formation of convection gas between the heat dissipation flanges 2111, thereby accelerating the heat dissipation on the heat dissipation flanges 2111, and greatly improving the heat dissipation efficiency of the heat-conducting end plate 2111.

[0055] like Figures 1 to 4As shown, in another embodiment, the number of heat dissipation airflow channels 21111 is multiple, so as to further improve the airflow efficiency of the heat dissipation flange 2111, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10.

[0056] like Figures 1 to 4 As shown, in another embodiment, the heat dissipation flange 21111 includes a transverse heat dissipation flange 21113 and a longitudinal heat dissipation flange 21114, and the number of the transverse heat dissipation flange 21113 and the longitudinal heat dissipation flange 21114 are both multiple, and the multiple transverse heat dissipation flanges 21113 are arranged parallel to each other and spaced apart, and the multiple longitudinal heat dissipation flanges 21114 are arranged parallel to each other and spaced apart, further increasing the contact area between the heat dissipation flange 2111 and the air, and improving the heat dissipation efficiency of the bundled battery pack structure 10; the air flow hole 21112 includes a first air flow hole 21112a and a second air flow hole 21112b, and the multiple transverse heat dissipation flanges 21113 are each formed with a first air flow hole 21112a, and the multiple first air flow holes 21112a are relatively arranged to jointly form a transverse air flow channel 21111a, and the multiple longitudinal heat dissipation flanges 21114 are each formed with a second air flow hole 21112b, The second air flow holes 21112b are arranged relatively to each other to jointly form a longitudinal air flow channel 21111b, and the transverse air flow channel 21111a is connected to the longitudinal air flow channel 21111b and jointly form a heat dissipation air flow channel 21111, so that the transverse air flow channel 21111a and the longitudinal air flow channel 21111b can jointly form a three-dimensional heat dissipation grid, optimize the air flow path of the heat dissipation flange 2111, and make the air flow cover wider and penetrate deeper, thereby greatly improving the heat dissipation efficiency of the heat-conducting end plate 211, and at the same time, it can also effectively reduce the airflow dead corners of the heat-conducting end plate 211, ensure that the heat on the heat-conducting end plate 211 can be evenly dissipated, and avoid the battery cell assembly 100 from being locally overheated due to uneven heat dissipation of the heat-conducting end plate 211, thereby greatly reducing the possibility of thermal runaway of the battery cell assembly 100, and further improving the safety of the energy storage power supply.

[0057] like Figures 1 to 4 As shown, in another embodiment, the number of the transverse air flow channels 21111a and the longitudinal air flow channels 21111b are both multiple, and the multiple transverse air flow channels 21111a are connected to the multiple longitudinal air flow channels 21111b to further improve the heat dissipation efficiency and heat dissipation uniformity of the heat-conducting end plate 211.

[0058] like Figures 1 to 4 As shown, in one embodiment, the transverse heat dissipation flange 21113 and the longitudinal heat dissipation flange 21114 are an integrally formed structure to improve the structural compactness of the heat dissipation flange 2111.

[0059] like Figures 1 to 3As shown, in one embodiment, a positioning flange 2114 is further formed on one side of the two heat-conducting end plates 211 facing away from the battery cell assembly 100. The positioning flange 2114 is used to pre-position the heat-conducting end plates 211 at a preset position of the energy storage power supply, so that the production staff can lock and fix the heat-conducting end plates 211 in the energy storage power supply, thereby reducing the difficulty of assembling the energy storage power supply. At the same time, it can also prevent the heat-conducting end plates 211 from sliding or displacing relative to the energy storage power supply during the process of being locked and fixed in the energy storage power supply, thereby improving the assembly stability of the heat-conducting end plates 211, reducing assembly errors, and greatly reducing the rework rate of the energy storage power supply, thereby greatly improving the production quality and production efficiency of the energy storage power supply.

[0060] like Figures 1 to 3 As shown, in one embodiment, the heat-conducting end plate 211 and the positioning flange 2114 are an integrally formed structure to improve the structural compactness of the heat-conducting end plate 211, while also enabling the heat-conducting end plate 211 to more securely position the positioning flange 2114 at a preset position of the energy storage power supply, further improving the assembly stability of the heat-conducting end plate 211.

[0061] like Figures 1 to 3 As shown, in one embodiment, two positioning flanges 2114 are formed on the side of the two heat-conducting end plates 211 facing away from the battery cell assembly 100, and the two positioning flanges 2114 are arranged relatively spaced apart so that the heat-conducting end plates 211 can be more securely positioned at the preset position of the energy storage power supply through the positioning flanges 2114, further reducing the possibility of assembly errors when the heat-conducting end plates 211 are installed in the energy storage power supply, thereby greatly reducing the rework rate of the energy storage power supply.

[0062] like Figures 1 to 3 As shown, in one embodiment, a fixing flange 2115 is formed on one side of the two heat-conducting end plates 211 facing away from the battery cell assembly 100, and a straight locking screw hole 2112 is formed in the fixing flange 2115, so that the heat-conducting end plates 211 can be locked and fixed in the energy storage power supply through the fixing flange 2115, preventing the bundled battery pack structure 10 from shaking or displacing relative to the energy storage power supply when the energy storage power supply is affected by external factors such as collision or vibration, thereby avoiding the bundled battery pack structure 10 from colliding with the internal structure of the energy storage power supply due to shaking or displacement relative to the energy storage power supply, thereby greatly reducing the possibility of damage or even destruction of the bundled battery pack structure 10, thereby greatly improving the stability and service life of the energy storage power supply.

[0063] like Figures 1 to 3 As shown, in one embodiment, the heat-conducting end plate 211 and the fixing flange 2115 are an integrally formed structure to improve the structural compactness of the heat-conducting end plate 211, while enabling the heat-conducting end plate 211 to be more securely fixed in the energy storage power supply, further improving the stability and service life of the energy storage power supply.

[0064] like Figures 1 to 3 As shown, in one embodiment, side locking screw holes 2113 are formed on both sides of the heat-conducting end plate 211, so that the bundled battery pack structure 10 can be laterally locked and fixed in the energy storage power supply through the side locking screw holes 2113 of the heat-conducting end plate 211. This not only enables the bundled battery pack structure 10 to be firmly fixed in the energy storage power supply, but also enables the bundled battery pack structure 10 to select a suitable locking method according to the type of the energy storage power supply to be locked and fixed in the energy storage power supply, thereby greatly improving the applicability of the bundled battery pack structure 10.

[0065] like Figures 1 to 5 As shown, in one embodiment, a clamping flange 2116 is formed on one side of the two heat-conducting end plates 211 adjacent to the battery cell assembly 100, and a clamping groove (not shown) arranged opposite to the clamping flange 2116 is formed on both sides of the battery cell assembly 100. The clamping flange 2116 is arranged in the clamping groove so that the two heat-conducting end plates 211 are clamped and fixed to the two sides of the battery cell assembly 100, so that the two heat-conducting end plates 211 can be firmly fixed on the battery cell assembly 100. At the same time, the heat-conducting end plates 211 can also support and limit the battery cell assembly 100 through the clamping flange 2116, so that the bundling and fixing assembly 200 can more firmly limit the battery cell assembly 100, effectively avoiding the phenomenon that the battery cell assembly 100 is detached from the bundling and fixing assembly 200 due to external factors such as vibration of the energy storage power supply, thereby enabling the battery cell assembly 100 to be firmly fixed in the energy storage power supply through the bundling and fixing assembly 200.

[0066] like Figures 1 to 2 As shown, in one embodiment, the bundling piece 220 can be a metal bundling strap or a high-strength fiber bundling strap, so that the bundling piece 220 can have better structural strength and toughness, so that the bundling piece 220 can more securely bundle and limit the two heat-conducting end plates 211 on both sides of the battery cell assembly 100, and then the two heat-conducting end plates 210 can more securely clamp and limit the battery cell assembly 100, thereby greatly improving the use stability of the bundled battery pack structure 10.

[0067] like Figures 1 to 5As shown, in one embodiment, the two heat-conducting end plates 211 are both formed with a first limiting groove 2117, and the first limiting grooves 2117 of the two heat-conducting end plates 211 are formed on a side away from the battery cell assembly 100 and are arranged opposite to each other. The first limiting grooves 2117 of the two heat-conducting end plates 211 are both used to accommodate the limiting binding members 220, so that the binding members 220 can be firmly limited in the first limiting grooves 2117, thereby avoiding the phenomenon that the binding members 220 slide relative to the heat-conducting end plates 211 during assembly of the energy storage power supply, and then the binding members 220 can firmly bind the two heat-conducting end plates 211 and limit them on both sides of the battery cell assembly 100, thereby greatly improving the stability of the energy storage power supply.

[0068] like Figures 1 to 5 As shown, in one embodiment, the corners of the two heat-conducting end plates 211 located in the first limiting groove 2117 are formed with rounded transitions 21171 to avoid the corners of the heat-conducting end plates 211 located in the first limiting groove 2117 being too sharp, which may cause damage or even destruction to the binding member 220, thereby improving the service life of the binding member 220. At the same time, it can also reduce the possibility of production workers scratching their hands when the binding member 220 is wrapped around the heat-conducting end plate 211, thereby improving the assembly safety of the energy storage power supply.

[0069] like Figures 1 to 5 As shown, in one embodiment, elastic buffers (not shown) are fixed to the corners of the two heat-conducting end plates 211 located in the first limiting grooves 2117. The elastic buffers are in elastic contact with the bundling members 220, so that the elastic buffers can adapt to the bundling force of the bundling members 220 through their own elastic deformation ability. When the bundling force of the bundling members 220 is too large, the elastic buffers can absorb excess energy through elastic deformation to disperse the pressure between the bundling members 220 and the corners of the heat-conducting end plates 211, reduce local stress concentration, and avoid damage or even destruction of the corners of the bundling members 220 and the heat-conducting end plates 211, thereby greatly improving the service life and bundling stability of the bundling members 220 and the heat-conducting end plates 211; at the same time, when the bundling force of the bundling members 220 is too small, the elastic buffers can use their own rebound force to make the bundling members 220 tightly contact the elastic buffers, so as to ensure the bundling stability of the bundling members 220, thereby greatly improving the use stability of the bundled battery pack structure 10.

[0070] like Figures 1 to 5As shown, in one embodiment, the outer surface of the elastic buffer is provided with a friction limiting surface (not shown) to increase the friction between the elastic buffer and the bundling member 220 to prevent the bundling member 220 from sliding or shifting relative to the elastic buffer. This not only effectively reduces the wear between the bundling member 220 and the elastic buffer, but also enables the bundling member 220 to more securely bundle and fix the heat-conducting end plate 211, thereby greatly improving the stability of the bundled battery pack structure 10.

[0071] like Figures 1 to 5 As shown, in one embodiment, the elastic buffer is a rubber part, a buffer cotton or a silicone part, so that the elastic buffer can have better elastic deformation ability, and at the same time can also increase the friction between the elastic buffer and the binding member 220, thereby improving the binding stability and service life of the binding member 220.

[0072] like Figures 1 to 2 As shown, in one embodiment, thermally conductive insulating pads (not shown) are provided between the two thermally conductive end plates 211 and both sides of the battery cell assembly 100, so that the thermally conductive insulating pads can insulate the thermally conductive end plates 211 from the battery cell assembly 100, thereby improving the safety of the energy storage power supply; at the same time, the thermally conductive insulating pads can further improve the heat conduction efficiency between the thermally conductive end plates 211 and the battery cell assembly 100, so that the battery cell assembly 100 can better conduct the heat generated by itself to the thermally conductive end plates 211 through the thermally conductive insulating pads, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10, and further improving the safety of the energy storage power supply.

[0073] like Figures 1 to 2 As shown, in one embodiment, the thermally conductive insulating pad is a thermally conductive silicone pad, so that the thermally conductive insulating pad has good electrical insulation ability, heat conduction efficiency and elastic deformation ability, so that the thermally conductive insulating pad can not only insulate the thermally conductive end plate 211 and the battery cell assembly 100 and improve the heat conduction efficiency between the thermally conductive end plate 211 and the battery cell assembly 100, but also buffer and disperse the pressure between the thermally conductive end plate 211 and the battery cell assembly 100, so as to reduce the local stress concentration of the battery cell assembly 100 and avoid the battery cell assembly 100 from being damaged or even destroyed due to excessive pressure. At the same time, the thermally conductive insulating pad can also compensate for the size of the gap between the thermally conductive end plate 211 and the battery cell assembly 100 through its own elastic deformation, so that the two side surfaces of the thermally conductive insulating pad can be tightly abutted against the battery cell assembly 100 and the thermally conductive end plate 211 respectively, so that the thermally conductive insulating pad can better conduct the heat generated by the battery cell assembly 100 to the thermally conductive end plate 211, reducing the possibility of thermal runaway of the battery cell assembly 100, and further improving the safety and service life of the energy storage power supply.

[0074] It can be understood that the thinner the thermal insulation pad is, the smaller the thermal resistance is, the better the thermal conductivity is, but the worse the buffer insulation effect is. The thicker the thermal insulation pad is, the better the buffer insulation is, but conversely, the worse the thermal conductivity is.

[0075] In one embodiment, the thickness of the thermally conductive insulating pad is 0.5 mm to 1.5 mm, so that the thermally conductive insulating pad has a good thermal conductivity and a good buffering and insulating effect.

[0076] like Figures 2 to 7 As shown, in one embodiment, the voltage collection board 310 is detachably connected to the two heat-conducting end plates 211, which not only enables the voltage collection board 310 to be securely fixed to the two heat-conducting end plates 211, but also facilitates the installation and removal of the voltage collection board 310, greatly reducing the difficulty of assembling and maintaining the energy storage power supply.

[0077] like Figures 2 to 7 As shown, in one embodiment, the bundled battery pack structure 10 further includes a fastener 400, and threaded holes 2118 are formed on the tops of the two heat-conducting end plates 211. The voltage collection plate 310 is formed with positioning holes 312 arranged opposite to the threaded holes 2118. The fastener 400 passes through the positioning holes 312 and is screwed to the threaded holes 2118, which not only enables the voltage collection plate 310 to be more securely fixed to the top of the heat-conducting end plate 211, but also further reduces the difficulty of installing and disassembling the voltage collection plate 310.

[0078] like Figures 3 to 10 As shown, in one embodiment, the tops of the two heat-conducting end plates 211 are each formed with a second limiting groove 2119, and both ends of the voltage collection plate 310 are formed with limiting flanges 313 arranged opposite to the second limiting groove 2119. The threaded hole 2118 is formed at the bottom of the second limiting groove 2119 and is connected to the second limiting groove 2119. The positioning hole 312 is formed in the limiting flange 313, so that when the limiting flange 313 is set in the second limiting groove 2119, the two ends of the voltage collection plate 310 can be pre-positioned by the limiting flange 313. The preset positions of the two heat-conducting end plates 211 not only align the positioning holes 312 with the threaded holes 2118, thereby reducing the difficulty of assembling the heat-conducting end plates 211 and the voltage collection plate 310, thereby improving the production efficiency of the energy storage power supply, but also prevent the voltage collection plate 310 from being displaced relative to the heat-conducting end plates 211 when the heat-conducting end plates 211 and the voltage collection plate 310 are threadedly connected, thereby reducing assembly errors between the heat-conducting end plates 211 and the voltage collection plate 310, and further improving the production efficiency of the energy storage power supply.

[0079] like Figure 10As shown, in one embodiment, the limiting flange 313 and the voltage collection board 310 are integrally formed to improve the structural compactness of the voltage collection board 310. At the same time, the voltage collection board 310 can be more securely fixed to the heat-conducting end plate 211 through the limiting flange 313, thereby greatly improving the assembly stability of the voltage collection board 310 and further improving the stability of the energy storage power supply.

[0080] Understandably, due to the significant differences in material properties between the voltage collection board 310 and the tabs of the cell assembly 100, the two exhibit significant differences in core physical parameters such as thermal expansion coefficient and hardness. The tabs of the cell assembly 100 are often made of metal foil (such as copper foil or aluminum foil) with high ductility but relatively low mechanical strength, while the voltage collection board 310 is composed of a multi-layer composite circuit structure, whose base material has high hardness and is significantly thicker than the tabs of the cell assembly 100. This difference in material properties directly reduces the adaptability of the welding process. During direct welding, the tab material of the cell assembly 100, due to its high ductility and low mechanical strength, is prone to defects such as wrinkling, tearing, or even breaking due to local overheating or stress concentration. At the same time, the welding end of the voltage collection board 310 is limited by the thickness of the copper foil and its insulation layer structure. Its current carrying capacity cannot meet the requirements of the tabs of the cell assembly 100 under continuous overcurrent conditions, resulting in the voltage collection board 310 being prone to short circuits, thereby greatly reducing the safety of the energy storage power supply.

[0081] like Figures 2 to 8 As shown, in one embodiment, the power collection component 300 further includes a conductive member 320, which is fixed and electrically connected to the voltage collection board 310, and the tabs of the battery cell assembly 100 are welded and fixed to the welding conductive ends of the conductive member 320, so that the tabs of the battery cell assembly 100 are electrically connected to the welding conductive ends of the conductive member 320, so that the tabs of the battery cell assembly 100 can be welded to the conductive member 320 to achieve a secure electrical connection with the voltage collection board 310, thereby avoiding poor contact or short circuit between the tabs of the battery cell assembly 100 and the voltage collection board 310, thereby greatly improving the stability and safety of the energy storage power supply.

[0082] like Figures 2 to 8 As shown, in one embodiment, the conductive member 320 is a copper conductive member, so that the conductive member 320 has a large current carrying capacity, so that the conductive member 320 can meet the requirements of the tab of the battery cell assembly 100 under a continuous overcurrent state, thereby greatly improving the stability of the energy storage power supply.

[0083] like Figures 7 to 9As shown, in one embodiment, the outer surface of the conductive member 320 is electroplated with a conductive protective film (not shown) to ensure that the conductive member 320 has good electrical conductivity while also effectively improving the corrosion resistance and wear resistance of the conductive member 320, thereby improving the operational stability of the energy storage power supply. In this embodiment, the conductive protective film is a nickel film or a gold film, which provides the conductive protective film with good electrical conductivity, corrosion resistance, and wear resistance. It also ensures that the conductive member 320 has good weldability, thereby enabling the tabs of the battery cell assembly 100 to be more securely welded to the conductive member 320, further improving the operational stability of the energy storage power supply.

[0084] like Figures 7 to 9 As shown, in one embodiment, the conductive member 320 includes a welding conductive part 321 and an electrical connection part 322, the welding conductive end of the conductive member 320 is provided at the welding conductive part 321, the number of the welding conductive parts 321 is multiple, and the multiple welding conductive parts 321 are fixed and electrically connected to the voltage collection board 310; the battery cell assembly 100 includes multiple battery cells, the tabs of each battery cell are welded and electrically connected to each welding conductive part 321, and the multiple welding conductive parts 321 are electrically connected to the electrical connection part 322, so that the multiple battery cells are electrically connected through the electrical connection part 322, avoiding the voltage collection board 310 from short-circuiting or even burning due to being unable to withstand excessive current when current is collected by multiple battery cells, thereby greatly improving the safety of the energy storage power supply, and at the same time, it can effectively reduce the amount of wiring harness used in the bundled battery pack structure 10, thereby improving the space utilization rate of the bundled battery pack structure 10.

[0085] like Figures 7 to 9 As shown, in one embodiment, the welding conductive part 321 and the electrical connection part 322 are an integrally formed structure to improve the structural compactness of the conductive part 320, while also improving the impact resistance and fatigue resistance of the conductive part 320, to ensure that the welding conductive part 321 and the electrical connection part 322 can maintain a stable electrical connection even when subjected to impact or load.

[0086] like Figures 7 to 9 As shown, in one embodiment, the welding conductive part 321 and the electrical connection part 322 are spliced ​​structures, so that when the welding conductive part 321 or the electrical connection part 322 is damaged or needs functional expansion, they can be replaced separately, thereby greatly reducing the maintenance cost of the bundled battery pack structure 10.

[0087] like Figures 7 to 10As shown, in one embodiment, a positioning slot 314 is formed on the conductive end of the voltage collection board 310, and the positioning slot 314 is adapted to the conductive member 320. The conductive member 320 is snapped into the positioning slot 314 and welded to the inner wall of the positioning slot 314, so that the conductive member 320 is electrically connected to the voltage collection board 310. This not only enables the conductive member 320 to be pre-positioned on the voltage collection board 310 through the positioning slot 314, making it easier for the production staff to weld the conductive member 320 to the voltage collection board 310, thereby greatly reducing the manufacturing difficulty of the bundled battery pack structure 10, but also the positioning slot 314 can increase the welding area between the conductive member 320 and the voltage collection board 310, so that the conductive member 320 can be more securely fixed to the voltage collection board 310, thereby greatly improving the stability of the energy storage power supply.

[0088] like Figure 2 and 5 As shown, in one embodiment, the voltage collection board 310 is arranged opposite to the battery cell assembly 100, and the voltage collection board 310 is formed with a heat dissipation connection hole 311, so that the heat generated by the battery cell assembly 100 can be discharged through the heat dissipation connection hole 311, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10.

[0089] like Figure 1 As Figure 7 As shown, in one embodiment, the power acquisition component 300 also includes an acquisition terminal 330, which is installed and fixed on the voltage acquisition board 310. The acquisition terminal 330 is electrically connected to the voltage acquisition board 310 and the temperature acquisition component respectively, and the acquisition terminal 330 is also used to be electrically connected to the control board, so that the acquisition terminal 330 can transmit the voltage data collected by the voltage acquisition board 310 and the temperature data collected by the temperature acquisition component to the control board in real time, so that the control board can adjust the voltage and temperature of the battery cell assembly 100 in real time through the voltage data and temperature data of the battery cell assembly 100, so as to ensure that the energy storage power supply can maintain stable and normal operation, thereby greatly improving the stability of the energy storage power supply, and at the same time greatly reducing the use of the wiring harness of the bundled battery pack structure 10, so as to further improve the space utilization of the bundled battery pack structure 10.

[0090] like Figure 1 As for Figure 9As shown, in one embodiment, the power collection component 300 further includes a conductive terminal 340, the conductive end of the conductive terminal 340 is welded and electrically connected to the voltage collection board 310, and the conductive terminal 340 is used to electrically connect to the conductive end of the external electrical device and the conductive end of the internal electrical component of the energy storage power supply, so that the voltage collection board 310 can not only monitor the voltage of the battery cell assembly 100 in real time, but also transmit the current of the battery cell assembly 100 to the external electrical device and the internal electrical component of the energy storage power supply through the conductive terminal 340, so as to reduce the amount of wiring harness used in the energy storage power supply, thereby greatly improving the space utilization of the energy storage power supply.

[0091] like Figure 7 As shown, in one embodiment, the conductive terminal 340 is formed with a locking hole 341, so that the conductive end of the external electrical equipment and the conductive end of the internal electrical component of the energy storage power supply can be firmly fixed and electrically connected to the conductive terminal 340 through the locking hole 341, so that the electrical connection stability of the bundled battery pack structure 10 is greatly improved, thereby greatly improving the use stability of the energy storage power supply.

[0092] like Figure 9 As shown, in one embodiment, the locking hole 341 is a threaded locking hole, which not only allows the conductive end of the external electrical device and the conductive end of the internal electrical component of the energy storage power supply to be firmly fixed and electrically connected to the conductive terminal 340 through the locking hole 341, but also makes it easy to remove the conductive end of the external electrical device and the conductive end of the internal electrical component of the energy storage power supply from the conductive terminal 340, thereby greatly reducing the maintenance cost of the energy storage power supply and improving the convenience of using the energy storage power supply.

[0093] like Figure 9 As shown, in one embodiment, the conductive terminal 340 is a copper terminal, an aluminum terminal or a nickel terminal, so that the conductive terminal 340 not only has good conductivity but also has good structural strength, ensuring that the energy storage power supply can maintain stable and normal operation, thereby greatly improving the stability of the energy storage power supply.

[0094] like Figure 7 As shown, in one embodiment, the power acquisition component 300 further includes a temperature acquisition welding wire (not shown), one end of which is welded and electrically connected to the voltage acquisition board 310, and the other end of which is electrically connected to the signal output end of the temperature acquisition component, so that the temperature acquisition welding wire can transmit the temperature data detected by the temperature acquisition component to the acquisition terminal 330 through the voltage acquisition board 310, thereby reducing the amount of wiring harness used in the bundled battery pack structure 10, further improving the space utilization of the bundled battery pack structure 10, and greatly reducing the production cost of the energy storage power supply.

[0095] like Figures 2 to 8As shown, in one embodiment, the voltage collection board 310 is further formed with a temperature collection component mounting hole 315 and a wire clamping hole 316. The signal output end of the temperature collection component is fixedly mounted on a side of the voltage collection board 310 away from the battery cell assembly 100. The temperature sensing end of the temperature collection component is passed through the temperature collection component mounting hole 315 and is disposed on a side of the voltage collection board 310 adjacent to the battery cell assembly 100. The temperature sensing end of the temperature collection component is disposed toward the battery cell assembly 100 for detecting the temperature of the battery cell assembly 100. This enables the temperature collection component to more accurately detect the temperature of the battery cell assembly 100, thereby improving the safety of the energy storage power supply. The temperature collection welding wire is passed through the wire clamping hole 316. The wire clamping hole 316 is used to bundle the temperature collection welding wire so that the wire clamping hole 316 can help organize the direction of the temperature collection welding wire, reduce the risk of electromagnetic interference, and prevent the temperature collection welding wire from directly pulling or pressing the solder joint, thereby reducing the risk of solder joint breakage or damage to the temperature collection component, thereby greatly improving the stability of the temperature collection component and ensuring that the energy storage power supply can maintain stable and normal operation.

[0096] like Figure 8 As shown, in one embodiment, the voltage collection board 310 is further formed with a mounting opening 317 connected to the wire clamping hole 316. The size of the mounting opening 317 is smaller than the aperture of the wire clamping hole 316, so that the wire clamping hole 316 can perform a wire bundling operation on the temperature collection welding wire. At the same time, it is also convenient for the production staff to quickly pass the temperature collection welding wire into or remove it from the wire clamping hole 316, so that the difficulty of installing and disassembling the temperature collection component is greatly reduced, thereby greatly reducing the production cost and maintenance cost of the energy storage power supply.

[0097] In one embodiment, the temperature acquisition component is a temperature sensor or a thermistor, so that the temperature acquisition component can accurately monitor the temperature of the battery cell assembly 100 .

[0098] like Figure 1 and Figure 2 As shown, in one embodiment, the bundled battery pack structure 10 further includes a cover member 500, which is arranged on the top of the battery cell assembly 100, and the two ends of the cover member 500 are respectively fixed to the top of the two heat-conducting end plates 211, and the power collection component 300 is arranged between the battery cell assembly 100 and the cover member 500, so that the cover member 500 can protect the battery cell assembly 100 and the power collection component 300, thereby improving the service life of the bundled battery pack structure 10.

[0099] like Figure 1 and Figure 11As shown, in one embodiment, the cover member 500 is formed with a plurality of heat dissipation holes 510 to increase the contact area between the battery cell assembly 100 and the power collection assembly 300 and the outside air, thereby greatly improving the heat dissipation efficiency of the bundled battery pack structure 10, thereby reducing the possibility of thermal runaway of the battery cell assembly 100, and thereby greatly improving the safety of the energy storage power supply.

[0100] like Figure 2 As shown, in one embodiment, the bundled battery pack structure 10 further includes a buffer pad 600. The buffer pad 600 is provided at the bottom of the battery cell assembly 100 to provide buffering protection for the battery cell assembly 100, thereby preventing the battery cell assembly 100 from being damaged or even destroyed due to greater pressure, thereby greatly improving the service life and safety of the battery cell assembly 100.

[0101] like Figure 11 and Figure 12 As shown, in one embodiment, a fastener 520 is further protruded from the outer peripheral wall of the cover member 500, so that the cover member 500 can be installed and fixed in the energy storage power supply through the fastener 520, so that the bundled battery pack structure 10 can be more securely fixed in the energy storage power supply through the cover member 500, thereby improving the stability of the energy storage power supply.

[0102] like Figure 11 and Figure 12 As shown, in one embodiment, the fastener 520 and the cover member 500 are an integrally formed structure to improve the structural compactness of the cover member 500, while also enabling the cover member 500 to be more securely fastened to the energy storage power supply through the fastener 520, further improving the assembly stability of the bundled battery pack structure 10.

[0103] like Figure 11 and Figure 12 As shown, in one embodiment, the second limiting groove 2119 and the cover member 500 jointly form a conductive terminal mounting hole 212, and the conductive terminal 340 is located in the conductive terminal mounting hole 212, so as to facilitate fixing and electrically connecting the conductive end of the external electrical equipment and the conductive end of the internal electrical component of the energy storage power supply to the conductive terminal 340, thereby improving the convenience of using the energy storage power supply.

[0104] like Figure 1 and Figure 11 As shown, in one embodiment, the cover member 500 is further formed with a hollow area 530, which is arranged opposite to the collection terminal 330, so as to facilitate the production worker to electrically connect the collection terminal 330 to the control board of the energy storage power supply, thereby greatly reducing the difficulty of assembling the energy storage power supply.

[0105] like Figure 11 and Figure 12As shown, in one embodiment, a reinforcing rib 540 is formed on a side of the cover member 500 adjacent to the voltage collection plate 310. The reinforcing rib 540 abuts against the side of the voltage collection plate 310 facing away from the battery cell assembly 100, which not only greatly improves the structural strength of the cover member 500, but also the cover member 500 can limit the voltage collection plate 310 through the reinforcing rib 540, so that the voltage collection plate 310 can be more securely limited at the preset position of the bundled battery pack structure 10.

[0106] like Figure 1 and Figure 2 As shown, in one embodiment, the bundled battery pack structure 10 further includes a thermally conductive insulating sheet 700, which is attached to the outer surface of the battery cell assembly 100, so that the thermally conductive insulating sheet 700 can not only electrically insulate the battery cell assembly 100, but also can conduct heat generated by the battery cell assembly 100, so as to further improve the heat dissipation efficiency of the energy storage power supply, thereby greatly improving the safety of the use of the energy storage power supply.

[0107] like Figure 1 and Figure 2 As shown, in one embodiment, the thermally conductive insulating sheet 700 is a thermally conductive silicone sheet, so that the thermally conductive insulating sheet 700 has a better thermal conductive and insulating effect.

[0108] like Figures 1 to 6 As shown, in another embodiment, the heat-conducting end plate 211 is further formed with an end plate heat dissipation hole 213, and the end plate heat dissipation hole 213 is connected to the heat dissipation airflow channel 21111, which can not only increase the contact area between the battery cell assembly 100 and the air, but also the heat dissipation airflow channel 21111 can also improve the airflow circulation efficiency of the end plate heat dissipation hole 213, thereby greatly improving the heat dissipation efficiency of the battery cell assembly 100, thereby improving the heat dissipation efficiency of the bundled battery pack structure 10.

[0109] like Figures 1 to 6 As shown, in another embodiment, there are multiple end plate heat dissipation holes 213 , and each end plate heat dissipation hole 213 is connected to the heat dissipation air flow channel 21111 to further improve the heat dissipation efficiency of the bundled battery pack structure 10 .

[0110] like Figures 1 to 3 As shown, in one embodiment, a heat conductive layer (not shown) is provided on the surface of the heat dissipation flange 2111 to improve the thermal conductivity of the heat dissipation flange 2111, thereby greatly improving the heat dissipation efficiency of the energy storage power supply.

[0111] like Figures 1 to 3 As shown, in one embodiment, the heat-conducting layer is a heat-conducting mud layer, so that the heat-conducting layer has better heat-conducting performance.

[0112] The present disclosure further provides an energy storage power supply, comprising a control board and the bundled battery pack structure 10 described in any one of the above embodiments.

[0113] Compared with the prior art, the present disclosure has at least the following advantages:

[0114] 1. The above energy storage power supply, since the bundling fixing assembly 200 includes a heat-conducting end plate 210 and a bundling member 220, the heat-conducting end plate 210 includes two heat-conducting end plates 211, and the two heat-conducting end plates 211 are respectively arranged on both sides of the battery core assembly 100 and are arranged opposite to each other, the number of the bundling member 220 is at least one, and the bundling member 220 is wrapped around the outer wall of the two heat-conducting end plates 211, and is wrapped around for at least one circle, so that the two heat-conducting end plates 211 jointly clamp the battery core assembly 100, so that the contact area between the battery core assembly 100 and the air is greatly increased, thereby greatly The heat dissipation efficiency of the bundled battery pack structure 10 is improved; at the same time, the two heat-conducting end plates 211 can also dissipate heat on the contact surface between the battery cell assembly 100, which not only reduces the thermal resistance of the contact surface between the battery cell assembly 100 and the heat-conducting end plates 211, but also can conduct heat from the battery cell assembly 100, further improving the heat dissipation efficiency of the bundled battery pack structure 10, making it possible for the bundled battery pack structure 10 to cause thermal runaway of the battery cell assembly 100 due to local overheating to be greatly reduced, thereby greatly improving the safety of the energy storage power supply.

[0115] 2. Since the two heat-conducting end plates 211 are both provided with a heat dissipation flange 2111 on the side facing away from the battery cell assembly 100, the contact area between the heat-conducting end plates 211 and the air is increased, and the heat dissipation efficiency of the heat-conducting end plates 211 is improved, the heat dissipation efficiency of the bundled battery pack structure 10 is greatly improved, and the possibility of thermal runaway of the bundled battery pack structure 10 due to local overheating of the battery cell assembly 100 is further reduced, thereby greatly improving the safety of the energy storage power supply; at the same time, the heat dissipation flange 2111 can also increase the thickness of the heat-conducting end plates 211, so that the overall stiffness of the heat-conducting end plates 211 is greatly improved, and the bending, torsion and load-bearing capacity of the heat-conducting end plates 211 are greatly improved, so that the structural strength of the bundled battery pack structure 10 is greatly improved, thereby improving the stability of the energy storage power supply.

[0116] 3. Since the heat dissipation flange 2111 is formed with a heat dissipation airflow channel 21111, the airflow efficiency of the heat dissipation flange 2111 is improved, and the air is promoted to form convection gas between the heat dissipation flange 2111, thereby accelerating the heat dissipation on the heat dissipation flange 2111, so that the heat dissipation efficiency of the heat-conducting end plate 211 is greatly improved, and the heat dissipation efficiency of the bundled battery pack structure 10 is further improved, thereby greatly reducing the possibility of thermal runaway of the battery cell assembly 100, thereby greatly improving the safety of the energy storage power supply.

[0117] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A bundled battery pack structure (10) for installation in an energy storage power supply, characterized in that: The bundled battery pack structure (10) comprises a battery cell assembly (100), a bundle fixing assembly (200) and a power collection assembly (300); The bundling and fixing assembly (200) includes a heat-conducting end plate (210) and a bundling piece (220), the heat-conducting end plate (210) includes two heat-conducting end plates (211), the two heat-conducting end plates (211) are respectively arranged on both sides of the battery core assembly (100) and are arranged opposite to each other, the number of the bundling piece (220) is at least one, and the bundling piece (220) is wrapped around the outer walls of the two heat-conducting end plates (211) and is wrapped around for at least one circle, so that the two heat-conducting end plates (211) jointly clamp and limit the battery core assembly (100); A heat dissipation flange (2111) is protruded from one side of the two heat-conducting end plates (211) facing away from the battery core assembly (100), and the heat dissipation flange (2111) forms a heat dissipation airflow channel (21111); There are multiple heat dissipation flanges (2111), each of the multiple heat dissipation flanges (2111) is formed with an air flow hole (21112), and the multiple air flow holes together form the heat dissipation air flow channel (21111); The heat dissipation flange includes a transverse heat dissipation flange (21113) and a longitudinal heat dissipation flange (21114), and the number of the transverse heat dissipation flange (21113) and the longitudinal heat dissipation flange (21114) is multiple, and the multiple transverse heat dissipation flanges (21113) are arranged in parallel and spaced apart from each other, and the multiple longitudinal heat dissipation flanges (21114) are arranged in parallel and spaced apart from each other, and the air flow hole (21112) includes a first air flow hole (21112a) and a second air flow hole (21112b), and the multiple transverse heat dissipation flanges (21113) are all formed with the first air flow hole (21112a), and the multiple first air flow holes (21112a) are arranged relatively to each other to form a total of A transverse airflow channel (21111a) is formed together, and a plurality of the longitudinal heat dissipation flanges (21114) are each formed with the second airflow hole (21112b), and the plurality of the second airflow holes (21112b) are arranged relatively to each other to jointly form a longitudinal airflow channel (21111b), and the transverse airflow channel (21111a) is connected to the longitudinal airflow channel (21111b) and jointly forms the heat dissipation airflow channel (21111); the number of the transverse airflow channel (21111a) and the longitudinal airflow channel (21111b) are both plural, and the plurality of the transverse airflow channels (21111a) are connected to the plurality of the longitudinal airflow channels (21111b); The heat-conducting end plate (211) is further formed with an end plate heat dissipation hole (213), and the end plate heat dissipation hole (213) is connected to the heat dissipation airflow channel (21111); the number of the end plate heat dissipation holes (213) is multiple, and each end plate heat dissipation hole (213) is connected to the heat dissipation airflow channel (21111).

2. The bundled battery pack structure (10) according to claim 1, characterized in that: The power acquisition component (300) comprises a voltage acquisition board (310) and a temperature acquisition component. The voltage acquisition board (310) is mounted and fixed on the heat-conducting end plate (210). The voltage acquisition board (310) is also electrically connected to the battery core assembly (100). The voltage acquisition board (310) is used to monitor the voltage of the battery core assembly (100). The temperature acquisition component is fixed to the voltage acquisition board (310) and is used to monitor the temperature of the battery core assembly (100). Both the voltage acquisition board (310) and the temperature acquisition component are used to be electrically connected to a control board of the energy storage power supply.

3. The bundled battery pack structure (10) according to claim 2, characterized in that: The two heat-conducting end plates (211) are used for being detachably installed in the energy storage power supply.

4. The bundled battery pack structure (10) according to claim 3, characterized in that: Both of the two heat-conducting end plates (211) are formed with a straight locking screw hole (2112) and a side locking screw hole (2113).

5. The bundled battery pack structure (10) according to claim 2, characterized in that: The power collection component (300) further comprises a conductive member (320), wherein the conductive member (320) is fixed to and electrically connected to the voltage collection board (310), and the tab of the battery cell component (100) is welded and fixed to the welding conductive end of the conductive member (320), so that the tab of the battery cell component (100) is electrically connected to the welding conductive end of the conductive member (320).

6. The bundled battery pack structure (10) according to claim 5, characterized in that: The conductive member (320) includes a welding conductive portion (321) and an electrical connection portion (322). The welding conductive end of the conductive member (320) is provided on the welding conductive portion (321). There are a plurality of welding conductive portions (321). The plurality of welding conductive portions (321) are fixed to and electrically connected to the voltage collection board (310). The battery cell assembly (100) includes a plurality of battery cell units. The tab of each battery cell unit is welded and electrically connected to each welding conductive portion (321). The plurality of welding conductive portions (321) are electrically connected to the electrical connection portion (322), so that the plurality of battery cell units are electrically connected via the electrical connection portion (322).

7. The bundled battery pack structure (10) according to claim 5, characterized in that: A positioning slot (314) is formed at the conductive end of the voltage collection board (310), the positioning slot (314) is adapted to the conductive member (320), the conductive member (320) is snapped into the positioning slot (314) and welded to the inner wall of the positioning slot (314), so that the conductive member (320) is electrically connected to the voltage collection board (310); and / or, The voltage collection plate (310) is arranged opposite to the battery core assembly (100), and a heat dissipation connection hole (311) is formed on the voltage collection plate (310).

8. An energy storage power supply, characterized in that: It comprises a control board and the bundled battery pack structure (10) according to any one of claims 1 to 7.

Images