Power battery module and assembling method thereof

Abstract

This disclosure provides a power battery module and its assembly method. The power battery module includes a power supply component and a housing component. A first mounting groove has a plurality of first support ribs protruding from its bottom. A plurality of second support ribs, opposite to the first support ribs, are formed on one side of the power supply component adjacent to the bottom of the first mounting groove. Each first support rib and its corresponding second support rib abut against each other for support. A second mounting groove has a plurality of limiting support flanges protruding from its bottom. A plurality of limiting grooves are formed on one side of the power supply component adjacent to the bottom of the second mounting groove. The limiting end of each limiting support flange is embedded in a corresponding limiting groove. The power battery module described above has a high service life and stable operation.

Description

Technical Field

[0001] This disclosure relates to the technical field of power battery modules, and in particular to a power battery module and its assembly method. Background Technology

[0002] With the rapid rise of the new energy industry, power battery modules, as the energy supply units for core equipment such as new energy vehicles and energy storage power stations, are increasingly widely used, and market demand continues to climb. The stable operation of power battery modules is directly related to the safety and reliability of terminal equipment; therefore, stringent requirements are placed on the protection design of each component inside the power battery module.

[0003] In existing power battery modules, the power supply components are typically fixed to the housing using screws. However, when the power battery module is subjected to external forces such as vehicle bumps, transportation vibrations, or environmental temperature changes, the power supply components are prone to collisions and compression with the housing, leading to internal structural damage, poor terminal contact, or even short circuits. To address this issue, the industry commonly employs a protective solution of adding rubber pads between the power supply components and the housing, as exemplified by existing patent CN215266521U. These rubber pads, with their excellent elastic deformation capabilities, effectively buffer external impacts and distribute the contact pressure between the power supply components and the housing, thereby reducing the probability of damage caused by compression and collisions. This significantly improves the lifespan and operational stability of the power battery module.

[0004] However, in practical applications, the aforementioned rubber pad protection solution has significant technical defects. The working environment of power battery modules is complex and variable, subject to long-term conditions of large temperature fluctuations, humidity changes, and continuous vibration. As a high-polymer elastic material, the rubber pad is highly susceptible to aging due to environmental factors, gradually losing its elasticity and becoming hardened, brittle, or even cracked. This significantly reduces its original buffering and vibration damping function, making it unable to effectively counteract the pressure and vibration transmission between the power supply components and the casing. This not only increases the risk of rigid contact between the power supply components and the casing but also may cause debris from cracked rubber pads to enter the module, potentially leading to secondary short circuits. Ultimately, this greatly reduces the lifespan and operational stability of the power battery module. Summary of the Invention

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a power battery module and its assembly method that have a long service life and stable operation.

[0006] The purpose of this disclosure is achieved through the following technical solution: A power battery module includes a power supply component and a housing component; The housing assembly includes an upper housing and a lower housing. The upper housing has a first mounting groove, and the lower housing has a second mounting groove. The upper housing and the lower housing are fixedly connected, such that the first mounting groove and the second mounting groove together form a battery receiving cavity, which is used to accommodate and install the power supply component. The bottom of the first mounting groove is provided with a plurality of first support ribs. The side of the power supply component adjacent to the bottom of the first mounting groove is provided with a plurality of second support ribs that are opposite to the first support ribs. Each first support rib and the corresponding second support rib abut against each other to support each other, so that the power supply component and the bottom of the first mounting groove are spaced apart. The bottom of the second mounting groove is provided with a plurality of limiting support flanges. The side of the power supply component adjacent to the bottom of the second mounting groove is provided with a plurality of limiting grooves. The limiting end of each limiting support flange is embedded in the corresponding limiting groove. The supporting end of the limiting support flange abuts against the side of the power supply component adjacent to the bottom of the second mounting groove, so that the power supply component and the bottom of the second mounting groove are spaced apart.

[0007] In one embodiment, the end face of the first support bone is formed with an abutting flange, and the end face of the second support bone is formed with an abutting groove opposite to the abutting flange. The abutting flange is fitted into the abutting groove so that the abutting flange and the inner wall of the abutting groove abut against each other for support.

[0008] In one embodiment, the second support bone has multiple hollow areas, which are spaced apart from each other.

[0009] In one embodiment, the bottom of the first mounting groove is further provided with a plurality of first stop flanges, which are evenly arranged along the outer periphery of the bottom of the first mounting groove, and the first stop flanges are located on the side of the first support rib facing away from the power supply component; the bottom of the second mounting groove is further provided with a plurality of second stop flanges, which are evenly arranged along the outer periphery of the bottom of the second mounting groove, and the second stop flanges are located on the side of the limiting support flange facing away from the power supply component.

[0010] In one embodiment, the inner peripheral wall of the first mounting groove is further provided with a first support boss, the end face of the first support boss being fixedly connected to the side of the first stop flange facing away from the power supply component; the inner peripheral wall of the second mounting groove is further provided with a second support boss, the end face of the second support boss being fixedly connected to the side of the second stop flange facing away from the power supply component.

[0011] In one embodiment, a plurality of the first support ribs are evenly arranged along the outer periphery of the bottom of the first mounting groove; a plurality of the limiting support flanges are evenly arranged along the outer periphery of the bottom of the second mounting groove.

[0012] In one embodiment, the outer surface of the upper housing has a plurality of first strip-shaped protrusions, which are arranged parallel to each other and spaced apart; the outer surface of the lower housing has a plurality of second strip-shaped protrusions, which are arranged parallel to each other and spaced apart.

[0013] In one embodiment, the limiting support flange includes a limiting portion and a supporting portion. The limiting end of the limiting support flange is disposed in the limiting portion, and the supporting end of the limiting support flange is disposed in the supporting portion. The supporting portion protrudes from the bottom of the second mounting groove, and the limiting portion is fixed to one side of the supporting portion away from the bottom of the second mounting groove. The limiting portion of each limiting support flange is adapted to the corresponding limiting groove, and the limiting portion is embedded and confined within the limiting groove.

[0014] In one embodiment, the end face of the limiting part has an arc-shaped structure, the limiting groove is an arc-shaped groove adapted to the end face of the limiting part, and the end face of the limiting part abuts and supports the inner wall of the limiting groove.

[0015] A method for assembling a power battery module, used to assemble the power battery module described in any of the above embodiments, the assembly method comprising: Obtain the housing assembly and power supply assembly; The lower housing is mounted on the fixing fixture, with the opening of the second mounting groove facing upwards; Position the limiting groove of the power supply component relative to the limiting support flange at the bottom of the second mounting groove; The power supply component is installed in the second mounting groove, such that the limiting end of each limiting support flange is embedded in the corresponding limiting groove, and the supporting end of each limiting support flange abuts against a side of the power supply component adjacent to the bottom of the second mounting groove, so that the power supply component and the bottom of the second mounting groove are spaced apart. The upper housing and the lower housing are positioned opposite each other so that the opening of the first mounting groove faces the opening of the second mounting groove, and the first support bone is positioned opposite the second support bone. The upper housing is installed and fixed at a preset position on the lower housing, so that the second support bone abuts against and supports the first support bone, and the first mounting groove and the second mounting groove together form the battery receiving cavity.

[0016] Compared with the prior art, this disclosure has at least the following advantages: 1. In the aforementioned power battery module, the bottom of the first mounting groove is provided with multiple first support ribs, and the side of the power supply component adjacent to the bottom of the first mounting groove is provided with multiple second support ribs opposite to the first support ribs. Each first support rib and its corresponding second support rib abut against each other to support each other, so that the power supply component and the bottom of the first mounting groove are spaced apart. The bottom of the second mounting groove is provided with multiple limiting support flanges, and the side of the power supply component adjacent to the bottom of the second mounting groove is provided with multiple limiting grooves. The limiting end of each limiting support flange is embedded in the corresponding limiting groove, and the supporting end of the limiting support flange abuts against the side of the power supply component adjacent to the bottom of the second mounting groove, so that the power supply component and the bottom of the second mounting groove are spaced apart. This allows the first support ribs and the limiting support flanges to jointly and securely clamp and limit the power supply component within the battery housing cavity, which can effectively reduce... The power battery module is susceptible to shaking or even displacement of the power supply component under the influence of external factors such as vibration or collision. This invention reduces the possibility of collision or compression between the power supply component and the inner wall of the battery housing. Furthermore, the first support rib and the limiting support flange reduce the contact area between the power supply component and the housing, thereby reducing the stress transmitted from the housing to the power supply component under the influence of external factors such as collision or vibration. At the same time, the first support rib and the limiting support flange can evenly distribute the stress on the power supply component to the housing, reducing stress concentration. Compared with the above-mentioned related technologies, the power battery module of this disclosure can effectively limit and protect the power supply component within the battery housing without the need for rubber pads, thereby greatly improving the service life and stability of the power battery module.

[0017] 2. Compared with the power battery modules in the aforementioned related technologies, the power battery module of this disclosure can reliably clamp and fix the power supply component in the battery cavity through the mutual cooperation between the first support rib and the limiting support flange. This eliminates the need to use screws to fix the power supply component in the battery cavity, thereby greatly reducing the production difficulty of the power battery module of this disclosure. It not only greatly improves the production efficiency of the power battery module, but also greatly reduces the production cost of the power battery module. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a power battery module according to one embodiment; Figure 2 for Figure 1 The diagram shows the internal structure of the power battery module. Figure 3 for Figure 2 A partially enlarged schematic diagram of the power battery module shown; Figure 4 for Figure 2 Another enlarged schematic diagram of a power battery module shown; Figure 5 for Figure 2 Another enlarged schematic diagram of the power battery module shown; Figure 6 for Figure 1 The diagram shows the exploded structure of the power battery module. Figure 7 for Figure 6 A partially enlarged schematic diagram of the power battery module shown; Figure 8 for Figure 1 The diagram shows a partial structural schematic of the power battery module. Figure 9 for Figure 1 Another partial structural diagram of the power battery module shown; Figure 10 for Figure 9 A partially enlarged schematic diagram of the power battery module shown; Figure 11 for Figure 1 Another partial structural schematic diagram of the power battery module shown; Figure 12 for Figure 1 Another partial structural schematic diagram of the power battery module shown; Figure 13 for Figure 12 A partially enlarged schematic diagram of the power battery module shown; Figure 14 for Figure 1 Another partial structural schematic diagram of the power battery module shown; Figure 15 for Figure 14 A partially enlarged schematic diagram of the power battery module shown; Figure 16 This is a partial schematic diagram of a power battery module.

[0020] Reference numerals: Power battery module 10; Power supply component 100; Second support rib 110; Abutment groove 111; Hollowed-out area 112; Limiting groove 120; Battery bracket 130; Cell limiting area 131; Support flange 132; Cell 140; Housing assembly 200; Upper housing 210; First mounting groove 211; First support rib 2111; Abutment flange 2111a; First stop flange 2112; First support boss 2113; First strip protrusion 212; Threaded hole 213; Annular glue groove 214; Female mounting groove 2 15; Limiting boss 2151; Connecting hole 216; Lower housing 220; Second mounting groove 221; Limiting support flange 2211; Limiting part 2211a; Support part 2211b; Second stop flange 2212; Second support boss part 2213; Second strip protrusion 222; Positioning hole 223; Annular positioning flange 224; Vent hole 225; Waterproof and breathable membrane 226; Battery housing cavity 230; Fastener 240; Charge / discharge female connector 300; Plug hole 310; Dust cover 400; Annular sealing part 410; Cover part 420. Detailed Implementation

[0021] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this 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 complete understanding of the disclosure.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: like Figures 1 to 16As shown, a power battery module 10 in one embodiment includes a power supply component 100 and a housing component 200; the housing component 200 includes an upper housing 210 and a lower housing 220, the upper housing 210 has a first mounting groove 211, the lower housing 220 has a second mounting groove 221, the upper housing 210 and the lower housing 220 are fixedly connected, and the first mounting groove 211 and the second mounting groove 221 together form a battery receiving cavity 230, which is used to accommodate and install the power supply component 100.

[0025] like Figures 1 to 16 As shown, further, the bottom of the first mounting groove 211 is provided with a plurality of first support ribs 2111, and the side of the power supply assembly 100 adjacent to the bottom of the first mounting groove 211 is provided with a plurality of second support ribs 110 opposite to the first support ribs 2111. Each first support rib 2111 and the corresponding second support rib 110 abut against each other to support each other, so that the power supply assembly 100 and the bottom of the first mounting groove 211 are spaced apart; the bottom of the second mounting groove 221 is provided with a plurality of limiting support flanges 2211, and the power supply assembly 100... A plurality of limiting grooves 120 are formed on one side of the power supply assembly 100 adjacent to the bottom of the second mounting groove 221. The limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120. The supporting end of the limiting support flange 2211 abuts and supports the power supply assembly 100 on one side of the power supply assembly 100 adjacent to the bottom of the second mounting groove 221, so that the power supply assembly 100 and the bottom of the second mounting groove 221 are spaced apart, so that the first support rib 2111 and the limiting support flange 2211 can together securely clamp and limit the power supply assembly 100 within the battery receiving cavity 230. This not only effectively reduces the risk of the power supply component 100 shaking or even shifting under the influence of external factors such as vibration or collision of the power battery module 10, thereby reducing the possibility of collision or compression between the power supply component 100 and the inner wall of the battery housing cavity 230, but also reduces the contact area between the power supply component 100 and the housing through the first support rib 2111 and the limiting support flange 2211, thereby reducing the stress transmitted from the housing component 200 to the power supply component 100 under the influence of external factors such as collision or vibration. Furthermore, it can also... The first support rib 2111 and the limiting support flange 2211 evenly distribute the stress on the power supply component 100 to the housing component 200, reducing the stress concentration of the power supply component 100. Compared with the above-mentioned related technologies, the power battery module 10 uses rubber pads to limit and protect the power supply component 100. The power battery module 10 disclosed in this invention can effectively limit and protect the power supply component 100 in the battery cavity 230 without the need for rubber pads, thereby greatly improving the service life and stability of the power battery module 10.

[0026] like Figures 1 to 16As shown, further, compared with the power battery module 10 in the above-mentioned related technologies, the power battery module 10 of this disclosure can reliably clamp and fix the power supply component 100 in the battery receiving cavity 230 through the mutual cooperation between the first support rib 2111 and the limiting support flange 2211. This means that the power battery module 10 of this disclosure does not need to use screw fastening to fix the power supply component 100 in the battery receiving cavity 230, thereby greatly reducing the production difficulty of the power battery module 10 of this disclosure, not only greatly improving the production efficiency of the power battery module 10, but also greatly reducing the production cost of the power battery module 10.

[0027] The aforementioned power battery module 10 has multiple first support ribs 2111 protruding from the bottom of the first mounting groove 211, and multiple second support ribs 110 opposite to the first support ribs 2111 are formed on one side of the power supply component 100 adjacent to the bottom of the first mounting groove 211. Each first support rib 2111 and its corresponding second support rib 110 abut against each other to support each other, so that the power supply component 100 and the bottom of the first mounting groove 211 are spaced apart. The bottom of the second mounting groove 221 has multiple limiting support flanges 2211 protruding from it, for... A plurality of limiting grooves 120 are formed on one side of the power supply component 100 adjacent to the bottom of the second mounting groove 221. The limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120. The supporting end of the limiting support flange 2211 abuts and supports the power supply component 100 on one side adjacent to the bottom of the second mounting groove 221, so that the power supply component 100 and the bottom of the second mounting groove 221 are spaced apart, so that the first support rib 2111 and the limiting support flange 2211 can together securely clamp and limit the power supply component 100 in the battery receiving cavity 2. Within 30, it can not only effectively reduce the risk of the power supply component 100 shaking or even displacing under the influence of external factors such as vibration or collision of the power battery module 10, thereby reducing the possibility of collision or compression between the power supply component 100 and the inner wall of the battery housing cavity 230, but also reduce the contact area between the power supply component 100 and the housing through the first support rib 2111 and the limiting support flange 2211, thereby reducing the stress transmitted from the housing assembly 200 to the power supply component 100 under the influence of external factors such as collision or vibration, and at the same time, it can also The stress on the power supply component 100 is evenly distributed to the housing component 200 by the first supporting rib 2111 and the limiting supporting flange 2211, reducing the stress concentration of the power supply component 100. Compared with the above-mentioned related technologies, the power battery module 10 uses rubber pads to limit and protect the power supply component 100. The power battery module 10 disclosed in this invention can effectively limit and protect the power supply component 100 in the battery housing cavity 230 without the need for rubber pads, thereby greatly improving the service life and stability of the power battery module 10.

[0028] Compared to the power battery module 10 in the aforementioned related technologies, the power battery module 10 of this disclosure can reliably clamp and fix the power supply component 100 in the battery receiving cavity 230 through the mutual cooperation between the first support rib 2111 and the limiting support flange 2211. This eliminates the need for screw fastening to fix the power supply component 100 in the battery receiving cavity 230, thereby greatly reducing the production difficulty of the power battery module 10 of this disclosure. It not only greatly improves the production efficiency of the power battery module 10, but also greatly reduces the production cost of the power battery module 10.

[0029] like Figure 3 and Figure 15 As shown, in one embodiment, the end face of the first support bone 2111 is formed with an abutment flange 2111a, and the end face of the second support bone 110 is formed with an abutment groove 111 opposite to the abutment flange 2111a. The abutment flange 2111a is fitted into the abutment groove 111, so that the abutment flange 2111a and the inner wall of the abutment groove 111 abut against each other and support each other. This allows the first support bone 2111 to be securely limited to the preset position of the second support bone 110 by the abutment groove 111, effectively improving the circumferential limiting effect of the second support bone 110 on the first support bone 2111 and greatly reducing the first support bone 2111's circumferential position. The risk of wobbling or even displacement of the first support rib 2111 relative to the second support rib 110 is eliminated. This not only allows the first support rib 2111 to more reliably confine the power supply component 100 within the battery housing cavity 230, but also greatly increases the contact area between the first support rib 2111 and the second support rib 110. This allows the stress on the power supply component 100 to be effectively transferred to the housing component 200 through the first support rib 2111 and the second support rib 110, further reducing stress concentration in the power supply component 100 and thus greatly improving the service life and operational stability of the power battery module 10.

[0030] like Figure 3 and Figure 15 As shown, in one embodiment, the abutment groove 111 is a counter groove. When the abutment flange 2111a is fitted into the abutment groove 111, the inner walls on both sides of the abutment groove 111 and the abutment flange 2111a abut against each other and support each other. This not only makes the first support rib 2111 securely positioned at the preset position of the second support rib 110 through the abutment groove 111, effectively reducing the phenomenon of the power supply component 100 shaking or even displacement relative to the housing component 200, but also greatly reduces the difficulty of aligning the abutment flange 2111a and the abutment groove 111, and improves the assembly efficiency.

[0031] like Figure 3 and Figure 15As shown, in another embodiment, the abutment groove 111 is an annular groove. When the abutment flange 2111a is fitted into the abutment groove 111, the inner wall of the abutment groove 111 and the abutment flange 2111a abut against each other in all directions, further improving the limiting reliability of the first support rib 2111 and the second support rib 110, ensuring that the first support rib 2111 is stably fixed in the preset position of the second support rib 110, and ensuring the assembly accuracy and overall stability between the power supply component 100 and the housing component 200.

[0032] like Figure 3 and Figure 15 As shown, in one embodiment, the second support rib 110 is formed with a plurality of hollow areas 112, which are spaced apart from each other. This not only effectively reduces the overall weight of the power supply component 100, but also improves the elastic deformation capability of the second support rib 110. This allows the second support rib 110 to buffer and disperse the stress between the housing component 200 and the power supply component 100 through its own elastic deformation capability, thereby reducing the stress concentration of the power supply component 100.

[0033] like Figure 1 and Figure 13 As shown, in one embodiment, the bottom of the first mounting groove 211 is further provided with a plurality of first stop flanges 2112, which are evenly arranged along the outer periphery of the bottom of the first mounting groove 211. The first stop flanges 2112 are located on the side of the first support rib 2111 facing away from the power supply assembly 100. The bottom of the second mounting groove 221 is further provided with a plurality of second stop flanges 2212, which are evenly arranged along the outer periphery of the bottom of the second mounting groove 221. The second stop flanges 2212 are located on the side of the limiting support flange 2211 facing away from the power supply assembly 100. When the power supply assembly 100 is installed in the battery receiving cavity 230, the sides of the first stop flanges 2112 and the second stop flanges 2212 adjacent to the power supply assembly 100 are both adjacent to the peripheral outer wall of the power supply assembly 100. The abutting support together achieves circumferential positioning and fixation of the power supply component 100, allowing the power supply component 100 to be more securely positioned within the battery housing cavity 230. Simultaneously, the power supply component 100, through the support of the first stop flange 2112 and the second stop flange 2212, forms an isolation space with the inner walls of the first mounting groove 211 and the second mounting groove 221. This effectively prevents the impact force from being directly transmitted to the power supply component 100 when the housing component 200 is subjected to external collisions or vibrations, thus providing a buffering protection effect. Furthermore, the power supply component 100 can also stably transmit its own stress to the housing component 200 through the first stop flange 2112 and the second stop flange 2212, further improving the positioning stability and stress dispersion effect of the power supply component 100, ensuring the overall structural reliability of the power battery module 10.

[0034] like Figure 1 and Figure 13 As shown, in one embodiment, the inner peripheral wall of the first mounting groove 211 is further provided with a first support boss 2113, the end face of the first support boss 2113 is fixedly connected to the side of the first stop flange 2112 facing away from the power supply assembly 100; the inner peripheral wall of the second mounting groove 221 is further provided with a second support boss 2213, the end face of the second support boss 2213 is fixedly connected to the side of the second stop flange 2212 facing away from the power supply assembly 100. This not only improves the structural strength of the first stop flange 2112 and the second stop flange 2212, but also allows the first stop flange 2112 and the second stop flange 2212 to better transfer the stress on the power supply assembly 100 to the housing assembly 200 through the first support boss 2113 and the second support boss 2213, respectively, further improving the stress dispersion effect of the power supply assembly 100.

[0035] like Figure 10 As shown, in one embodiment, the first support boss 2113 and the first stop flange 2112 are integrally formed to improve the structural compactness of the first stop flange 2112.

[0036] like Figure 13 As shown, in one embodiment, the second support boss 2213 and the second stop flange 2212 are integrally formed to improve the structural compactness of the second stop flange 2212.

[0037] like Figures 1 to 13 As shown, in one embodiment, a plurality of first support ribs 2111 are evenly arranged along the outer periphery of the bottom of the first mounting groove 211; a plurality of limiting support flanges 2211 are evenly arranged along the outer periphery of the bottom of the second mounting groove 221. This not only enables the first support ribs 2111 and the limiting support flanges 2212 to provide balanced and stable support and limiting for the power supply component 100, but also allows the stress on the power supply component 100 to be evenly distributed and transmitted to the housing component 200 through the first support ribs 2111 and the limiting support flanges 2212, further improving the stress rationality and structural stability of the power supply component 100. Figures 1 to 6 As shown, in one embodiment, both the upper housing 210 and the lower housing 220 are metal housings, so that the upper housing 210 and the lower housing 220 can have better structural strength, elastic modulus, impact resistance and vibration damping, so that the upper housing 210 and the lower housing 220 can effectively disperse and buffer the stress transmitted by the power supply component 100, and can also buffer and disperse the external collision force and extrusion force, thereby reducing the stress on the power supply component 100.

[0038] Preferably, the metal casing is an aluminum alloy casing or a steel casing.

[0039] like Figures 1 to 11 As shown, in one embodiment, the outer surface of the upper housing 210 is formed with a plurality of first strip-shaped protrusions 212, which are arranged parallel to each other and spaced apart; the outer surface of the lower housing 220 is formed with a plurality of second strip-shaped protrusions 222, which are arranged parallel to each other and spaced apart. This not only greatly improves the structural strength of the upper housing 210 and the lower housing 220, but also reduces the stress concentration of the upper housing 210 and the lower housing 220.

[0040] like Figures 1 to 14 As shown, in one embodiment, the limiting support flange 2211 includes a limiting portion 2211a and a supporting portion 2211b. The limiting end of the limiting support flange 2211 is disposed in the limiting portion 2211a, and the supporting end of the limiting support flange 2211 is disposed in the supporting portion 2211b. The supporting portion 2211b protrudes from the bottom of the second mounting groove 221. The limiting portion 2211a is fixed to one side of the supporting portion 2211b away from the bottom of the second mounting groove 221. The limiting portion 2211a of each limiting support flange 2211 is adapted to the corresponding limiting groove 120. The limiting portion 2211a is embedded and limited within the limiting groove 120, so that... The limiting part 2211a can securely limit the power supply component 100 within the battery receiving cavity 230. At the same time, the supporting part 2211b can isolate the power supply component 100 from the bottom of the second mounting groove 221, which greatly reduces the contact area between the power supply component 100 and the battery receiving cavity 230. This not only reduces the risk of the power supply component 100 shaking or even displacing under the influence of external factors such as vibration or collision of the power battery module 10, but also reduces the possibility of collision or compression between the power supply component 100 and the inner wall of the battery receiving cavity 230, thereby reducing the phenomenon of stress concentration in the power supply component 100.

[0041] like Figures 13 to 14 As shown, in one embodiment, the end face of the limiting part 2211a is arc-shaped, and the limiting groove 120 is an arc-shaped groove adapted to the end face of the limiting part 2211a. The end face of the limiting part 2211a abuts and supports the inner wall of the limiting groove 120. This not only guides the power supply component 100 to be installed quickly and accurately at the preset position of the second mounting groove 221, but also effectively increases the contact area between the limiting part 2211a and the power supply component 100. This allows the stress on the power supply component 100 to be more effectively transmitted to the housing component 200 through the limiting support flange 2211, thereby greatly improving the production and assembly efficiency and service life of the power battery module 10.

[0042] like Figures 1 to 14As shown, in one embodiment, the power supply assembly 100 includes a battery bracket 130 and a plurality of battery cells 140. The battery bracket 130 is provided with a plurality of battery cell limiting areas 131 at even intervals. The plurality of battery cell limiting areas 131 are provided one-to-one with the plurality of battery cells 140. Each battery cell 140 is installed and fixed in the corresponding battery cell limiting area 131, so that the battery bracket 130 can effectively limit and protect the battery cell 140, avoid direct contact between the battery cell 140 and the housing assembly 200, and thus greatly improve the service life of the battery cell 140.

[0043] like Figures 1 to 14 As shown, in one embodiment, a second support rib 110 is formed on the top of the battery bracket 130, a limiting groove 120 is formed on the bottom of the battery bracket 130, and multiple support flanges 132 are evenly protruding on the left and right sides of the battery bracket 130. The multiple support flanges 132 abut against and support the inner peripheral wall of the first mounting groove 211 and the inner peripheral wall of the second mounting groove 221, respectively, so as to further reduce the contact area between the power supply component 100 and the housing component 200. This greatly reduces the stress transmitted from the housing component 200 to the power supply component 100 when the power battery module 10 is affected by external factors such as collisions or vibrations. At the same time, the power supply component 100 can also transmit the stress it receives to the housing component 200 through the support flanges 132, thereby reducing the phenomenon of stress concentration in the power supply component 100.

[0044] like Figures 1 to 6 As shown, in one embodiment, the upper housing 210 is detachably installed on the lower housing 220 to facilitate the installation and removal of the housing assembly 200. This not only greatly reduces the difficulty of assembling and producing the power battery module 10, but also greatly reduces the difficulty of maintaining and replacing the power battery module 10, thereby greatly improving the production efficiency and maintenance convenience of the power battery module 10.

[0045] like Figures 1 to 12 As shown, in one embodiment, the housing assembly 200 further includes fasteners. A positioning hole 223 is formed on the end face of the lower housing 220 adjacent to the upper housing 210. The upper housing 210 is formed with a threaded hole 213 opposite to the positioning hole 223. The fasteners are threaded into the positioning hole 223 through the threaded hole 213. This not only allows the upper housing 210 to be securely fixed to the lower housing 220, but also greatly reduces the difficulty of installing and disassembling the housing assembly 200.

[0046] like Figures 1 to 12As shown, in one embodiment, the end face of the upper housing 210 at the opening of the first mounting groove 211 is formed with an annular glue-applying groove 214, which is used to fill sealant. The end face of the lower housing 220 at the opening of the second mounting groove 221 is provided with an annular positioning flange that is opposite to the annular glue-applying groove 214. This allows the upper housing 210 to be quickly and accurately installed at a preset position on the lower housing 220 by snapping it in place with the annular positioning flange. At the same time, after the sealant cures, it can seal the gap between the upper housing 210 and the lower housing 220, preventing external water or other conductive liquids from entering the battery housing cavity 230 through the gap between the upper housing 210 and the lower housing 220. This greatly reduces the risk of short circuit in the power supply component 100 due to direct contact with external water or other conductive liquids, thereby greatly improving the safety and service life of the power battery module 10.

[0047] like Figure 6 and Figure 11 As shown, in one embodiment, the lower housing 220 also forms a vent 225 that communicates with the second mounting groove 221. A waterproof and breathable membrane is attached to the outer surface of the lower housing 220 at the vent 225. The waterproof and breathable membrane is sealed to the vent 225, which not only prevents external water or other liquids from entering the second mounting groove 221 through the vent 225, but also allows the gas generated by the power supply component 100 during use to be discharged through the vent 225 and the waterproof and breathable membrane, avoiding damage to the power battery module 10 due to excessive internal pressure, thereby greatly improving the service life of the power battery module 10.

[0048] like Figures 1 to 9As shown, in one embodiment, the power battery module further includes a charging / discharging female connector 300 and a dust cover 400. A female connector mounting groove 215 is formed on the outer surface of the upper housing. The charging / discharging female connector 300 is installed and fixed within the female connector mounting groove 215. A connecting hole 216, communicating with a first mounting groove, is formed at the bottom of the female connector mounting groove 215. The charging / discharging female connector 300 is electrically connected to the power supply component within the battery housing cavity 230 through the connecting hole 216. An annular sealing portion 410 of the dust cover 400 is disposed between the charging / discharging female connector 300 and the bottom of the female connector mounting groove 215. The two sides of the annular seal respectively press-fit against the charging / discharging female connector 300 and the bottom of the female connector mounting groove 215, and the annular sealing portion 410 surrounds the connecting hole 216, so that the annular sealing portion 410... The 0 effectively seals the gap between the charging / discharging female connector 300 and the bottom of the female connector mounting groove 215, preventing external water or other conductive liquids from entering the connecting hole 216 through the gap between the charging / discharging female connector 300 and the bottom of the female connector mounting groove 215. The cover portion 420 of the dust cover 400 is used to cover the insertion hole 310 of the charging / discharging female connector 300 to prevent dust from entering the insertion hole 310. A limiting boss 2151 protrudes from one end of the bottom of the female connector mounting groove 215 near the cover portion 420, so that the annular sealing portion 410 can be reliably limited within the female connector mounting groove 215, thereby reducing the possibility of the annular sealing portion 410 being pulled out of the female connector mounting groove 215 when the cover portion 420 is covered or removed, and thus reducing the risk of waterproof failure of the connecting hole 216.

[0049] like Figure 7 As shown, in one embodiment, the annular sealing portion 410 and the cover portion 420 are integrally formed to improve the structural compactness of the dust cover 400.

[0050] In one embodiment, PC sheets are attached to the bottom of both the first mounting groove 211 and the second mounting groove 221 to improve the structural strength of the upper housing 210 and the lower housing 220.

[0051] This disclosure also provides a method for assembling a power battery module 10, used to assemble the power battery module 10 described in any of the above embodiments. The assembly method includes some or all of the following steps: S10, acquire housing assembly 200 and power supply assembly 100; S20, the lower housing 220 is installed on the fixing fixture, and the opening of the second mounting groove 221 is set upward; In this embodiment, the lower housing 220 is mounted on a fixing fixture, and the opening of the second mounting groove 221 is set upward to facilitate the installation of the power supply component 100, thereby improving the production efficiency of the power battery module 10.

[0052] S30, the limiting groove 120 of the power supply component 100 is aligned with the limiting support flange 2211 at the bottom of the second mounting groove 221; In this embodiment, the limiting groove 120 of the power supply component 100 is aligned with the limiting support flange 2211 at the bottom of the second mounting groove 221, so as to quickly and accurately install the power supply component 100 at the preset position of the second mounting groove 221, reduce the risk of installation misalignment or even misalignment of the power supply component 100, and thus improve the assembly efficiency and production quality of the power battery module 10.

[0053] S40, the power supply component 100 is installed in the second mounting groove 221, so that the limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120, and the supporting end of each limiting support flange 2211 abuts against one side of the power supply component 100 adjacent to the bottom of the second mounting groove 221, so that the power supply component 100 and the bottom of the second mounting groove 221 are spaced apart. In this embodiment, the power supply component 100 is installed in the second mounting groove 221, so that the limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120, and the supporting end of each limiting support flange 2211 abuts against one side of the power supply component 100 adjacent to the bottom of the second mounting groove 221, so that the power supply component 100 and the bottom of the second mounting groove 221 are spaced apart. This not only allows the power supply component 100 to be reliably limited to the preset position of the second mounting groove 221 through the mutual cooperation of the limiting groove 120 and the limiting support flange 2211, so as to reduce the risk of the power supply component 100 shaking or even displacing relative to the lower housing 220 during subsequent assembly and use, but also the supporting end of the limiting support flange 2211 can effectively reduce the contact area between the power supply component 100 and the lower housing 220, so as to reduce the stress transmitted from the lower housing 220 to the power supply component 100 under the influence of external factors such as collision or vibration, thereby effectively reducing the stress concentration of the power supply component 100.

[0054] S50, the upper housing 210 and the lower housing 220 are positioned opposite each other so that the opening of the first mounting groove 211 faces the opening of the second mounting groove 221, and the first support bone 2111 and the second support bone 110 are positioned opposite each other. In this embodiment, the upper housing 210 and the lower housing 220 are positioned opposite each other so that the opening of the first mounting groove 211 faces the opening of the second mounting groove 221, and the first support rib 2111 and the second support rib 110 are positioned opposite each other. This facilitates the quick and accurate installation of the upper housing 210 at the preset position of the lower housing 220, reducing the risk of installation misalignment or even misalignment between the upper housing 210 and the lower housing 220, thereby improving the assembly efficiency and production quality of the power battery module 10.

[0055] S60, the upper housing 210 is installed and fixed at a preset position on the lower housing 220, so that the second support rib 110 abuts against and supports the first support rib 2111, and the first mounting groove 211 and the second mounting groove 221 together form the battery receiving cavity 230.

[0056] In this embodiment, the upper housing 210 is installed and fixed at a preset position on the lower housing 220, so that the second support rib 110 abuts against and supports the first support rib 2111, and the first mounting groove 211 and the second mounting groove 221 together form the battery receiving cavity 230. This allows the first support rib 2111 and the limiting support flange 2211 to jointly and securely clamp and limit the power supply component 100 within the battery receiving cavity 230. This not only effectively reduces the risk of the power supply component 100 shaking or even displacing under the influence of external factors such as vibration or collision of the power battery module 10, thus reducing the possibility of collision or compression between the power supply component 100 and the inner wall of the battery receiving cavity 230, but also allows the first support rib 2111 and the limiting support flange 2211 to securely clamp and limit the power supply component 100 within the battery receiving cavity 230. The support flange 2211 reduces the contact area between the power supply component 100 and the housing, thereby reducing the stress transmitted from the housing component 200 to the power supply component 100 under the influence of external factors such as collision or vibration. At the same time, the first support rib 2111 and the limiting support flange 2211 can evenly distribute the stress on the power supply component 100 to the housing component 200, reducing the stress concentration of the power supply component 100. Compared with the above-mentioned related technologies, the power battery module 10 uses a rubber pad to limit and protect the power supply component 100. The power battery module 10 disclosed in this invention can effectively limit and protect the power supply component 100 within the battery housing cavity 230 without the need for a rubber pad, thereby greatly improving the service life and stability of the power battery module 10.

[0057] In this embodiment, when assembling the power battery module 10, firstly, the housing assembly 200 and the power supply assembly 100 are obtained; secondly, the lower housing 220 is installed on the fixing fixture, with the opening of the second mounting groove 221 facing upwards; then, the limiting groove 120 of the power supply assembly 100 is aligned with the limiting support flange 2211 at the bottom of the second mounting groove 221; then, the power supply assembly 100 is installed in the second mounting groove 221, so that the limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120, and the supporting end of each limiting support flange 2211 abuts against the supporting power supply assembly 100. On one side adjacent to the bottom of the second mounting groove 221, the power supply assembly 100 is spaced apart from the bottom of the second mounting groove 221. Then, the upper housing 210 and the lower housing 220 are aligned so that the opening of the first mounting groove 211 faces the opening of the second mounting groove 221, and the first support rib 2111 and the second support rib 110 are aligned. Finally, the upper housing 210 is installed and fixed at a preset position on the lower housing 220 so that the second support rib 110 abuts against and supports the first support rib 2111, and the first mounting groove 211 and the second mounting groove 221 together form the battery receiving cavity 230.

[0058] In one embodiment, the end face of the upper housing 210 at the opening of the first mounting groove 211 is formed with an annular adhesive groove 214 for filling with sealant. The end face of the lower housing 220 at the opening of the second mounting groove 221 is provided with an annular positioning flange opposite to the annular adhesive groove 214. The step S50 of aligning the upper housing 210 and the lower housing 220 so that the opening of the first mounting groove 211 faces the opening of the second mounting groove 221, and aligning the first support rib 2111 and the second support rib 110, includes some or all of the following steps: S51, Perform a sealant application operation on the annular sealant application groove 214 to inject sealant liquid into the annular sealant application groove 214; S52, align the annular positioning flange with the annular glue-applying groove 214, and align the first support bone position 2111 with the second support bone position 110. In this embodiment, the annular positioning flange is aligned with the annular adhesive groove 214, and the first support rib 2111 is aligned with the second support rib 110. This allows the upper housing 210 to be quickly and accurately installed in the preset position of the lower housing 220 via the annular positioning flange. At the same time, after the sealant cures, it can seal the gap between the upper housing 210 and the lower housing 220, preventing external water or other conductive liquids from entering the battery housing cavity 230 through the gap between the upper housing 210 and the lower housing 220. This greatly reduces the risk of short circuits in the power supply component 100 due to direct contact with external water or other conductive liquids, thereby greatly improving the safety and service life of the power battery module 10.

[0059] In one embodiment, after applying sealant to the annular sealant groove 214 at room temperature, the upper housing 210 is installed and fixed at the preset position of the lower housing 220 within five minutes to avoid problems such as surface skin formation and decreased fluidity of the sealant due to excessive standing time, so that the cured sealant can effectively seal the gap between the upper housing 210 and the lower housing 220.

[0060] Compared with the prior art, this disclosure has at least the following advantages: 1. The assembly method of the power battery module 10 described above includes the following steps: First, obtain the housing assembly 200 and the power supply assembly 100; second, install the lower housing 220 on the fixing fixture, with the opening of the second mounting groove 221 facing upwards; then, align the limiting groove 120 of the power supply assembly 100 with the limiting support flange 2211 at the bottom of the second mounting groove 221; then, install the power supply assembly 100 into the second mounting groove 221, so that the limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120, and the supporting end of each limiting support flange 2211 abuts against the supporting power supply... The power supply component 100 is positioned adjacent to the bottom of the second mounting groove 221, with a gap between the power supply component 100 and the bottom of the second mounting groove 221. Then, the upper housing 210 and the lower housing 220 are aligned so that the opening of the first mounting groove 211 faces the opening of the second mounting groove 221, and the first support rib 2111 and the second support rib 110 are aligned. Finally, the upper housing 210 is fixed to a predetermined position on the lower housing 220, so that the second support rib 110 abuts against and supports the first support rib 2111, and the first mounting groove 211 and the second mounting groove 221 together form a battery housing. The cavity 230 allows the first support rib 2111 and the limiting support flange 2211 to securely clamp and confine the power supply component 100 within the battery receiving cavity 230. This not only effectively reduces the risk of the power supply component 100 shaking or even shifting under the influence of external factors such as vibration or collision, thus reducing the possibility of collision or compression between the power supply component 100 and the inner wall of the battery receiving cavity 230, but also reduces the contact area between the power supply component 100 and the housing through the first support rib 2111 and the limiting support flange 2211, thereby reducing the impact force of collision or vibration on the housing assembly 200. The stress transmitted to the power supply component 100 under the influence of external factors can be evenly distributed to the housing component 200 through the first support rib 2111 and the limiting support flange 2211, reducing the stress concentration of the power supply component 100. Compared with the above-mentioned related technologies, the power battery module 10 uses rubber pads to limit and protect the power supply component 100. The power battery module 10 disclosed in this invention can effectively limit and protect the power supply component 100 in the battery cavity 230 without the need for rubber pads, thereby greatly improving the service life and stability of the power battery module 10.

[0061] 2. Compared with the power battery module 10 in the above-mentioned related technologies, the power battery module 10 of this disclosure can securely clamp and fix the power supply component 100 in the battery receiving cavity 230 through the mutual cooperation between the first support rib 2111 and the limiting support flange 2211. This means that the power battery module 10 of this disclosure does not need to use screw fastening to fix the power supply component 100 in the battery receiving cavity 230, thereby greatly reducing the production difficulty of the power battery module 10 of this disclosure, not only greatly improving the production efficiency of the power battery module 10, but also greatly reducing the production cost of the power battery module 10.

[0062] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A power battery module, characterized in that, Includes power supply components and housing components; The housing assembly includes an upper housing and a lower housing. The upper housing has a first mounting groove, and the lower housing has a second mounting groove. The upper housing and the lower housing are fixedly connected, such that the first mounting groove and the second mounting groove together form a battery receiving cavity, which is used to accommodate and install the power supply component. The bottom of the first mounting groove 211 is provided with a plurality of first support ribs 2111. The side of the power supply component 100 adjacent to the bottom of the first mounting groove 211 is provided with a plurality of second support ribs 110 opposite to the first support ribs 2111. Each first support rib 2111 and the corresponding second support rib 210 abut against each other to support each other, so that the power supply component 100 and the bottom of the first mounting groove 211 are spaced apart. The bottom of the second mounting groove 221 is provided with a plurality of limiting support flanges 2211. The side of the power supply component 100 adjacent to the bottom of the second mounting groove 221 is provided with a plurality of limiting grooves 120. The limiting end of each limiting support flange 2211 is embedded in the corresponding limiting groove 120. The supporting end of the limiting support flange 2211 abuts against the side of the power supply component 100 adjacent to the bottom of the second mounting groove 221 to support each other, so that the power supply component 100 and the bottom of the second mounting groove 221 are spaced apart.

2. The power battery module according to claim 1, characterized in that, The end face of the first support bone is formed with an abutting flange, and the end face of the second support bone is formed with an abutting groove opposite to the abutting flange. The abutting flange is fitted into the abutting groove so that the abutting flange and the inner wall of the abutting groove abut against each other for support.

3. The power battery module according to claim 1, characterized in that, The second support bone has multiple hollow areas, which are spaced apart from each other.

4. The power battery module according to claim 1, characterized in that, The bottom of the first mounting groove is further provided with a plurality of first stop flanges, which are evenly arranged along the outer periphery of the bottom of the first mounting groove. The first stop flanges are located on the side of the first support rib that is away from the power supply component. The bottom of the second mounting groove is further provided with a plurality of second stop flanges, which are evenly arranged along the outer periphery of the bottom of the second mounting groove. The second stop flanges are located on the side of the limiting support flange that is away from the power supply component.

5. The power battery module according to claim 4, characterized in that, The inner peripheral wall of the first mounting groove is further provided with a first support boss, and the end face of the first support boss is fixedly connected to the side of the first stop flange that is away from the power supply component; the inner peripheral wall of the second mounting groove is further provided with a second support boss, and the end face of the second support boss is fixedly connected to the side of the second stop flange that is away from the power supply component.

6. The power battery module according to claim 1, characterized in that, Multiple first support ribs are evenly arranged along the outer periphery of the bottom of the first mounting groove; multiple limiting support flanges are evenly arranged along the outer periphery of the bottom of the second mounting groove.

7. The power battery module according to claim 1, characterized in that, The outer surface of the upper housing has a plurality of first strip-shaped protrusions, which are arranged parallel to each other at intervals; the outer surface of the lower housing has a plurality of second strip-shaped protrusions, which are arranged parallel to each other at intervals.

8. The power battery module according to claim 1, characterized in that, The limiting support flange includes a limiting part and a supporting part. The limiting end of the limiting support flange is disposed in the limiting part, and the supporting end of the limiting support flange is disposed in the supporting part. The supporting part protrudes from the bottom of the second mounting groove. The limiting part is fixed to one side of the supporting part away from the bottom of the second mounting groove. The limiting part of each limiting support flange is adapted to the corresponding limiting groove, and the limiting part is embedded and limited within the limiting groove.

9. The power battery module according to claim 8, characterized in that, The end face of the limiting part has an arc-shaped structure, and the limiting groove is an arc-shaped groove that is adapted to the end face of the limiting part, and the end face of the limiting part abuts and supports the inner wall of the limiting groove.

10. A method for assembling a power battery module, characterized in that, The assembly method for assembling the power battery module according to any one of claims 1 to 9 includes: Obtain the housing assembly and power supply assembly; The lower housing is mounted on the fixing fixture, with the opening of the second mounting groove facing upwards; Position the limiting groove of the power supply component relative to the limiting support flange at the bottom of the second mounting groove; The power supply component is installed in the second mounting groove, such that the limiting end of each limiting support flange is embedded in the corresponding limiting groove, and the supporting end of each limiting support flange abuts against a side of the power supply component adjacent to the bottom of the second mounting groove, so that the power supply component and the bottom of the second mounting groove are spaced apart. The upper housing and the lower housing are positioned opposite each other so that the opening of the first mounting groove faces the opening of the second mounting groove, and the first support bone is positioned opposite the second support bone. The upper housing is installed and fixed at a preset position on the lower housing, so that the second support bone abuts against and supports the first support bone, and the first mounting groove and the second mounting groove together form the battery receiving cavity.

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