Battery management module, battery device and electric equipment

Abstract

The application provides a battery management module, a battery device and a power utilization equipment, and relates to the technical field of batteries. The battery management module comprises a beam body and a signal module, the beam body is internally provided with an accommodating groove, and the signal module is arranged in the accommodating groove. The battery management module provided by the application protects the signal module through the beam body, reduces the possibility of damage of the signal module in extreme working conditions such as expansion or thermal diffusion of the battery pack, and ensures that the signal module can collect information of the battery pack in real time, so that the real-time state of the battery pack can be conveniently judged.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery management module, battery device, and electrical equipment. Background Technology

[0002] The Battery Management System (BMS) of a battery pack is a system specifically designed to manage and monitor the individual battery cells within the battery pack.

[0003] In the prior art, the housing of the battery management system is usually fixed to the battery tray of the battery pack by a bracket.

[0004] However, the battery management system is easily damaged in extreme conditions such as collisions or thermal runaway, making it impossible to determine the real-time status of the battery pack. Utility Model Content

[0005] This application provides a battery management module, a battery device, and an electrical appliance to solve the problem in the prior art that the battery management system is easily damaged under extreme conditions such as collision or thermal diffusion of the battery pack, resulting in the inability to determine the real-time status of the battery pack.

[0006] In a first aspect, this application provides a battery management module, comprising:

[0007] The beam body has a receiving groove inside;

[0008] A signal module is disposed within the receiving slot.

[0009] In some possible implementations, the battery management module further includes a mounting bracket that covers at least a portion of the signal module and is connected to the signal module, the mounting bracket being connected to the beam.

[0010] In some possible implementations, the mounting bracket has at least one first snap-fit ​​portion, and the beam has at least one second snap-fit ​​portion, with the first snap-fit ​​portion and the second snap-fit ​​portion engaging correspondingly.

[0011] In some possible implementations, the mounting bracket has two first side surfaces arranged along the length direction of the mounting bracket, and the first snap-fit ​​portion is disposed on the first side surface.

[0012] In some possible implementations, the first snap-fit ​​portion includes at least two spaced-apart first snap-fit ​​ribs, and the second snap-fit ​​portion includes at least one second snap-fit ​​rib, wherein the at least two first snap-fit ​​ribs are respectively snapped between opposite sides of the second snap-fit ​​rib.

[0013] In some possible implementations, the first snap-fit ​​portion further includes a first connecting segment and a second connecting segment, the second connecting segment being spaced apart from the first side, and the first connecting segment connecting the first side and the second connecting segment;

[0014] The first snap-fit ​​rib is connected to the side of the second connecting segment opposite to the first side.

[0015] In some possible implementations, the distance between the second connecting segment and the first side is greater than or equal to twice the length of the first snap-fit ​​rib in the length direction of the mounting bracket.

[0016] In some possible implementations, the first connecting segment is inclined relative to the first side, and the angle between the first connecting segment and the first side is greater than or equal to 10° and less than or equal to 30°.

[0017] In some possible implementations, the thickness t of the first connecting segment is greater than or equal to 1.5 mm and less than or equal to 2.5 mm;

[0018] And / or, the length L3 of the first connecting segment and the thickness t of the first connecting segment satisfy the following relationship:

[0019] 8×t≥L3≥5×t.

[0020] In some possible implementations, the first snap-fit ​​portion further includes an arc-shaped segment that connects the first connecting segment to the first side surface.

[0021] In some possible implementations, the mounting bracket has two second sides disposed opposite to each other along the width direction of the mounting bracket, the second sides intersecting with the first side, at least one third snap-fit ​​portion is provided on at least one second side, and the beam has at least one fourth snap-fit ​​portion, the third snap-fit ​​portion snapping into the fourth snap-fit ​​portion.

[0022] In some possible implementations, the third snap-fit ​​portion includes a third connecting segment and a hook connected to the third connecting segment, the third connecting segment being connected to the second side, and the fourth snap-fit ​​portion being a first snap hole that matches the hook.

[0023] In some possible implementations, the hook has a guide surface for guiding the third engaging portion when the mounting bracket is inserted into the receiving groove.

[0024] In some possible implementations, the angle between the plane containing the guide surface and the third connecting segment is greater than or equal to 30° and less than or equal to 45°.

[0025] In some possible implementations, the hook has a locking surface that forms a locking angle with the third connecting segment, the locking angle being greater than or equal to 85° and less than or equal to 95°.

[0026] In some possible implementations, the thickness d of the third connecting segment is greater than or equal to 1 mm and less than or equal to 1.6 mm;

[0027] And / or, the length L4 of the third connecting segment and the thickness d of the third connecting segment satisfy the following relationship:

[0028] 8×d≥L4≥5×d.

[0029] In some possible implementations, an adhesive element is also included, through which the mounting bracket is bonded to the beam.

[0030] In some possible implementations, the adhesive is a structural adhesive filled between the inner wall of the beam and the mounting bracket.

[0031] In some possible implementations, the mounting bracket has at least one mounting post, and the signal module has at least one mounting hole, with the mounting post correspondingly inserted into the mounting hole.

[0032] In some possible implementations, at least one protective cover is also included, which covers a portion of the signal module and is connected to the mounting bracket.

[0033] In some possible implementations, the mounting bracket has two grooves with openings facing opposite directions, the grooves being used to accommodate the signal module, and two protective covers are provided correspondingly over the openings of the grooves.

[0034] In some possible implementations, the mounting bracket has at least one fifth snap-fit ​​portion, and the protective cover has at least one sixth snap-fit ​​portion, with the fifth snap-fit ​​portion snapping into the sixth snap-fit ​​portion.

[0035] In some possible implementations, the mounting bracket is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene, or glass fiber reinforced polyphenylene ether.

[0036] And / or, the first snap-fit ​​portion is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene or glass fiber reinforced polyphenylene ether;

[0037] And / or, the third snap-fit ​​part is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene or glass fiber reinforced polyphenylene ether.

[0038] Secondly, this application provides a battery device, including a battery pack and the aforementioned battery management module disposed on one side of the battery pack, wherein the battery pack is electrically connected to a signal module.

[0039] In some possible implementations, the battery device further includes a housing, a beam disposed within the housing and dividing the housing into multiple receiving cavities, multiple battery packs located within the receiving cavities, and a signal module electrically connected to at least one battery pack.

[0040] Thirdly, this application provides an electrical device, including a device body and any of the aforementioned battery devices or battery management modules disposed on the device body.

[0041] This application proposes a battery management module, battery device, and electrical equipment. The battery management module is equipped with a beam, and the signal module is placed in the receiving groove of the beam. The beam protects the signal module and reduces the possibility of damage to the signal module under extreme conditions such as battery expansion or thermal diffusion. This ensures that the signal module can collect information from the battery pack in real time, thereby facilitating the judgment of the real-time status of the battery pack. Attached Figure Description

[0042] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0043] Figure 1 This is a schematic diagram of the battery management module provided in an embodiment of this application;

[0044] Figure 2 for Figure 1 Partial structural diagram;

[0045] Figure 3 for Figure 2 Another structural diagram from a different perspective;

[0046] Figure 4 for Figure 3 A structural diagram of the central protection module, mounting bracket, and protective cover;

[0047] Figure 5 for Figure 4 Another structural diagram from a different perspective;

[0048] Figure 6 for Figure 4 A structural diagram of the mid-signal module and mounting bracket;

[0049] Figure 7 for Figure 6 A schematic diagram of the structure of the mounting bracket;

[0050] Figure 8for Figure 7 A schematic diagram of the middle section of the mounting bracket;

[0051] Figure 9 for Figure 7 A schematic diagram of the structure of the third connecting part;

[0052] Figure 10 for Figure 6 A schematic diagram of the structure of the intermediate signal module;

[0053] Figure 11 for Figure 4 Schematic diagram of the structure of the middle protective cover;

[0054] Figure 12 for Figure 11 A structural diagram from another perspective.

[0055] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0056] Explanation of reference numerals in the attached figures:

[0057] 100 - Beam body; 110 - Receiving groove; 120 - Second snap-fit ​​part; 130 - Fourth snap-fit ​​part; 130a - First snap-fit ​​hole;

[0058] 200 - Signal module; 210 - Mounting hole; 220 - Connector;

[0059] 300-Mounting bracket; 301-First side; 302-Second side; 310-First snap-fit ​​part; 311-First snap-fit ​​rib; 312-First connecting section; 313-Second connecting section; 314-Arc-shaped section; 320-Third snap-fit ​​part; 321-Third connecting section; 322-Hook; 323-Guide surface; 324-Locking surface; 330-Mounting post; 340-Fifth snap-fit ​​part; 350-Mounting bracket; 351-Groove; 360-First abutment rib; 370-Third abutment rib;

[0060] 400 - Protective cover; 410 - Sixth snap-fit ​​part; 410a - Second snap hole; 420 - Second abutment rib; 430 - Reinforcing rib; 440 - Abutment post. Detailed Implementation

[0061] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0062] In existing technologies, the battery management system (BMS) casing is typically attached to the battery tray using multiple bolts. Under extreme conditions such as collisions or thermal runaway, the BMS is easily damaged, preventing it from collecting battery pack information and determining the real-time status of the battery pack. Furthermore, the BMS casing is susceptible to bolt loss. These small bolts are difficult to locate if they fall into the battery pack and can cause unusual noises, potentially leading to insulation abnormalities throughout the pack. Additionally, installing multiple bolts takes considerable time, impacting battery pack production efficiency.

[0063] Based on this, this application provides a battery management module. By setting a beam, the signal module is placed in the receiving groove of the beam, so as to protect the signal module by the beam, reduce the possibility of damage to the signal module when the battery pack expands or thermally diffuses, and ensure that the signal module can collect the information of the battery pack in real time, thereby facilitating the judgment of the real-time status of the battery pack.

[0064] The embodiments of this application are described below with reference to the accompanying drawings.

[0065] Reference Figures 1 to 10 As shown in the embodiment of this application, a battery management module includes: a beam 100, a signal module 200, and a mounting bracket 300. The beam 100 has a receiving groove 110. The signal module 200 is disposed in the receiving groove 110. The mounting bracket 300 covers at least a portion of the signal module 200 and is connected to the signal module 200. The mounting bracket 300 is connected to the beam 100.

[0066] The receiving groove 110 is at least one, and the mounting bracket 300 is located within the receiving groove 110. The receiving groove 110 can be a rectangular groove. There can also be at least two receiving grooves 110, which are spaced apart along the length of the beam 100.

[0067] For example, the beam 100 can be a metal beam. Metal beams have high strength and can withstand greater pressure and impact, providing better protection for the signal module 200. The mounting bracket 300 has good insulation to keep the signal module 200 and the beam 100 in an insulated state, avoiding abnormal signal acquisition by the signal module 200 or triggering safety accidents, and reducing the insulation risk between the signal module 200 and the beam 100.

[0068] The battery device also includes a base plate, at least one battery pack, at least two parallel and spaced-apart crossbeams, and at least two parallel and spaced-apart longitudinal beams. Both the crossbeams and longitudinal beams are mounted on the base plate and are perpendicular to each other. The space between two adjacent crossbeams is used to accommodate the battery pack, and the space between two adjacent longitudinal beams is also used to accommodate the battery pack. In this embodiment, one of the crossbeams is a beam body 100, or one of the longitudinal beams is a beam body 100. Further, the beam body 100 may be integrally formed with the base plate.

[0069] The signal module 200 is used to collect voltage and current information of the battery pack, as well as temperature information inside the battery device, in order to determine the real-time status of the battery pack and to ensure the performance and safety of the battery pack.

[0070] The battery management module provided in this application embodiment, by setting up a beam body 100, and setting the signal module 200 in the receiving groove 110 of the beam body 100, protects the signal module 200 through the beam body 100, reduces the possibility of damage to the signal module 200 when the battery pack expands or thermally diffuses, and ensures that the signal module 200 can collect information of the battery pack in real time, so as to facilitate the judgment of the real-time status of the battery pack.

[0071] In addition, by setting up a mounting bracket 300, which connects the signal module 200 and the beam 100, the signal module 200 is fixed in the receiving groove 110. At the same time, the mounting bracket 300 covers at least part of the signal module 200, thereby reducing the possibility of direct contact between the signal module 200 and the beam 100 and reducing the insulation risk between the signal module 200 and the beam 100.

[0072] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, the mounting bracket 300 has at least one first snap-fit ​​portion 310, and the beam 100 has at least one second snap-fit ​​portion 120, with the first snap-fit ​​portion 310 and the second snap-fit ​​portion 120 engaging correspondingly.

[0073] The mounting bracket 300 is snapped into the beam 100. The snap-fit ​​structure is simple, making it easy and convenient to install the mounting bracket 300 into the beam 100. This improves the installation efficiency of the battery management module and eliminates the risk of bolts falling off, as there is no need to use bolts to connect the beam 100 and the mounting bracket 300.

[0074] Reference Figure 6 and Figure 7 As shown, in a specific implementation, the mounting bracket 300 has two first side surfaces 301 arranged along the length direction of the mounting bracket 300, and the first snap-fit ​​portion 310 is provided on the first side surface 301.

[0075] The mounting bracket 300 is aligned with the length of the beam 100. Two first side panels 301 are positioned opposite each other and are parallel to each other. The stability and reliability of the engagement between the first side panels 301 and the second side panels 120 are improved by providing first engaging portions 310 on the two opposite first side panels 301.

[0076] Specifically, the receiving groove 110 has two opposing inner sidewalls, which are opposite to the first side 301, and the second snap-fit ​​portion 120 is disposed on the inner sidewall.

[0077] Reference Figure 2 and Figure 8 As shown, in some embodiments, the first snap-fit ​​portion 310 includes at least two spaced-apart first snap-fit ​​ribs 311, and the second snap-fit ​​portion 120 includes at least one second snap-fit ​​rib, with at least two first snap-fit ​​ribs 311 respectively snapped between opposite sides of the second snap-fit ​​rib.

[0078] In this configuration, a snap-fit ​​groove is formed between two adjacent first snap-fit ​​ribs 311, and the second snap-fit ​​rib is at least partially located within the snap-fit ​​groove so that the second snap-fit ​​rib snaps into the snap-fit ​​groove.

[0079] For example, the snap-fit ​​groove matches a portion of the second snap-fit ​​rib. For instance, the first snap-fit ​​ribs 311 are parallel to each other, and the snap-fit ​​groove can be a rectangular groove.

[0080] Specifically, the distance between two adjacent first clamping ribs 311 can be the thickness of the second clamping rib plus 0.5mm. This facilitates the placement of the second clamping rib between two adjacent first clamping ribs 311.

[0081] Reference Figure 8 As shown, in a specific implementation, the first snap-fit ​​portion 310 further includes a first connecting segment 312 and a second connecting segment 313. The second connecting segment 313 is spaced apart from the first side surface 301. The first connecting segment 312 connects the first side surface 301 and the second connecting segment 313. The first snap-fit ​​rib 311 is connected to the side of the second connecting segment 313 that is away from the first side surface 301.

[0082] The first connecting segment 312 is inclined relative to the second connecting segment 313.

[0083] For example, there are two first snap-fit ​​ribs 311, one of which is close to the first connecting segment 312.

[0084] Specifically, the beam 100 has an insertion interface communicating with the receiving groove 110. After the mounting bracket 300 is connected to the signal module 200, the mounting bracket 300 is inserted into the receiving groove 110 through the insertion interface. During the insertion of the mounting bracket 300 into the receiving groove 110, the first snap-fit ​​rib 311 abuts against the second snap-fit ​​rib. The second snap-fit ​​rib pushes the first snap-fit ​​portion 310 towards the first side 301 and compresses it until the second snap-fit ​​rib is aligned with the snap-fit ​​groove. Then, under the elastic action, the first snap-fit ​​portion 310 rotates and resets towards the side away from the first side 301, so that the second snap-fit ​​rib is snapped into the snap-fit ​​groove. When the first snap-fit ​​portion 310 is compressed towards the first side 301, at least one of the first connecting section 312 and the second connecting section 313 moves towards the first side 301.

[0085] In some embodiments, the distance between the second connecting segment 313 and the first side 301 is greater than or equal to twice the length of the first snap-fit ​​rib 311 in the length direction of the mounting bracket 300.

[0086] The second connecting segment 313 is parallel to the first side surface 301. The distance between the second connecting segment 313 and the first side surface 301 refers to the distance between the side of the second connecting segment 313 facing the first side surface 301 and the first side surface 301 when the first latching part 310 is in its natural state, that is, when the first latching part 310 is not compressed.

[0087] For example, the distance between the second connecting segment 313 and the first side surface 301 is as follows: Figure 8 As shown in L1, the length of the first snap-fit ​​rib 311 in the longitudinal direction of the mounting bracket 300 is as follows: Figure 8 As shown in L2, L2 is greater than or equal to 1.5 mm.

[0088] In some embodiments, the first connecting segment 312 is inclined relative to the first side surface 301, and the included angle between the first connecting segment 312 and the first side surface 301 is greater than or equal to 10° and less than or equal to 30°. This allows the first connecting segment 312 to rotate relative to the first side surface 301, and the deformation of the first connecting segment 312 is within a controllable range.

[0089] The angle between the first connecting segment 312 and the first side surface 301 refers to the angle between the plane containing the side of the first connecting segment 312 facing the first side surface 301 and the plane containing the first side surface 301. The angle between the first connecting segment 312 and the first side surface 301 is as follows: Figure 8 As shown in Figure a.

[0090] In a specific implementation, the first snap-fit ​​portion 310 also includes an arc-shaped segment 314, which connects the first connecting segment 312 and the first side surface 301.

[0091] In contrast to the first connecting segment 312 being directly connected to the first side 301, the arc segment 314 is provided to connect the first connecting segment 312 and the first side 301, thereby increasing the connection strength between the first connecting segment 312 and the first side 301, and making it less likely for the first snap-fit ​​portion 310 to break when compressed.

[0092] In some embodiments, the length of the first connecting segment 312 is greater than or equal to five times the wall thickness of the first connecting segment 312, and less than or equal to eight times the wall thickness of the first connecting segment 312. This allows the elastic deformation of the first snap-fit ​​portion 310 to be controllable.

[0093] For example, the first connecting segment 312 is plate-shaped. The wall thickness of the first connecting segment 312 is as follows: Figure 8 As shown in Figure t, the length of the first connecting segment 312 is as follows: Figure 8 As shown in L3. If the thickness t of the first connecting segment 312 is too small, the strength of the first connecting segment 312 is difficult to guarantee; if the thickness t of the first connecting segment 312 is too large, the first connecting segment 312 occupies a large space. In this embodiment, the wall thickness t of the first connecting segment 312 is greater than or equal to 1.5 mm and less than or equal to 2.5 mm. The wall thickness of the second connecting segment 313 can be equal to the wall thickness of the first connecting segment 312.

[0094] When the length of the first connecting segment 312 is small, the amount of elastic deformation of the first connecting segment 312 is small, making it difficult for the first snap-fit ​​rib 311 to snap into place with the second snap-fit ​​rib. When the length of the first connecting segment 312 is large, the amount of elastic deformation of the first connecting segment 312 is large, making the snap-fit ​​between the first snap-fit ​​rib 311 and the second snap-fit ​​rib unreliable. Therefore, in the embodiments of this application, the length L3 and the thickness t of the first connecting segment 312 can satisfy the following relationship: 8×t≥L3≥5×t. This avoids the first connecting segment 312 being too short or too long. In some examples, the mounting bracket 300 is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene, or glass fiber reinforced polyphenylene ether.

[0095] In some examples, the elastic modulus of the first snap-fit ​​portion 310 may be greater than or equal to 2000 MPa and less than or equal to 3000 MPa to ensure the elastic deformation capability of the first snap-fit ​​portion 310. The first snap-fit ​​portion 310 may be made of polycarbonate (PC), ABS plastic, nylon (PA), glass fiber reinforced polypropylene (PP) or glass fiber reinforced polyphenylene oxide (PPO).

[0096] Reference Figure 2 and Figure 6 As shown, in some embodiments, the mounting bracket 300 has two second side surfaces 302 disposed opposite to each other along the width direction of the mounting bracket 300, the second side surfaces 302 intersect with the first side surface 301, and at least one third snap-fit ​​portion 320 is provided on the second side surface 302, and the beam 100 has at least one fourth snap-fit ​​portion 130, the third snap-fit ​​portion 320 and the fourth snap-fit ​​portion 130 are snapped together accordingly.

[0097] The third snap-fit ​​part 320 and the fourth snap-fit ​​part 130 are snapped together to improve the stability and reliability of the connection between the mounting bracket 300 and the beam 100.

[0098] For example, the second side 302 is located on one side of the first side 301, and the second side 302 is perpendicular to the first side 301.

[0099] Reference Figure 2 and Figure 9 As shown, in some embodiments, the third snap-fit ​​portion 320 includes a third connecting segment 321 and a snap hook 322 connected to the third connecting segment 321. The third connecting segment 321 is connected to the second side surface 302. The fourth snap-fit ​​portion 130 is a first snap hole 130a that matches the snap hook 322.

[0100] The hook 322 is located on the side of the third connecting section 321 away from the second side 302, so that the hook 322 can be partially inserted into the corresponding first locking hole 130a, thereby facilitating the engagement of the third locking part 320 and the fourth locking part 130.

[0101] Specifically, when the mounting bracket 300 is inserted into the receiving groove 110 via the insertion interface, the hook 322 abuts against the inner wall of the receiving groove 110, so that the third engaging portion 320 is compressed toward the second side 302. Until the hook 322 moves to be opposite the first locking hole 130a, the third engaging portion 320 resets under elastic action, so that at least part of the hook 322 can extend into the first locking hole 130a, thereby allowing the third engaging portion 320 to engage with the first locking hole 130a.

[0102] Reference Figure 9As shown, in a specific implementation, the hook 322 has a guide surface 323, which is used to guide the third snap-fit ​​part 320 when the mounting bracket 300 is inserted into the receiving groove 110.

[0103] When the mounting bracket 300 is inserted into the receiving groove 110, the guide surface 323 first abuts against the inner wall of the receiving groove 110, and then the guide surface 323 moves along the inner wall of the receiving groove 110 to guide the third snap-fit ​​part 320 through the guide surface 323, so that the third snap-fit ​​part 320 is compressed toward the second side 302.

[0104] Specifically, the angle between the plane containing the guide surface 323 and the third connecting segment 321 is an acute angle.

[0105] In some embodiments, the angle between the plane containing the guide surface 323 and the third connecting segment 321 is greater than or equal to 30° and less than or equal to 45°. This facilitates the guide surface 323 in guiding the third engaging portion 320.

[0106] The angle between the plane containing the guide surface 323 and the third connecting segment 321 is as follows: Figure 9 As shown in b.

[0107] In its specific implementation, the hook 322 has a locking surface 324, and a locking angle is formed between the locking surface 324 and the third connecting section 321. Figure 9 In the diagram, the locking angle is indicated by c.

[0108] When the third latching part 320 and the fourth latching part 130 are latched together, a portion of the periphery of the fourth latching part 130 is located within the locking angle and abuts against the locking surface 324 and the third connecting section 321. The locking angle limits the fourth latching part 130, so that the third latching part 320 and the fourth latching part 130 form a self-locking mechanism. The portion of the periphery of the fourth latching part 130 is not easy to come out from the locking angle, thereby preventing the third latching part 320 and the fourth latching part 130 from disengaging.

[0109] For example, the locking angle is greater than or equal to 85° and less than or equal to 95°.

[0110] In some embodiments, the length of the third connecting segment 321 is greater than or equal to five times the wall thickness of the third connecting segment 321, and less than or equal to eight times the wall thickness of the third connecting segment 321. This ensures that the elastic deformation of the third snap-fit ​​portion 320 is controllable.

[0111] For example, the wall thickness of the third connecting segment 321 is as follows: Figure 9As shown in d, the space in the receiving groove 110 along the width direction is relatively small, and the first snap-fit ​​portion 310 has been provided to ensure the connection strength. Therefore, the thickness of the third connecting segment 321 in the third snap-fit ​​portion 320 can be slightly less than the thickness of the first connecting segment 312. In the embodiment of this application, the wall thickness d of the third connecting segment 321 is greater than or equal to 1 mm and less than or equal to 1.6 mm.

[0112] When the length of the third connecting segment 321 is small, its elastic deformation is limited, making it difficult for the hook 322 to engage with the fourth engaging portion 130. When the length of the third connecting segment 321 is large, its elastic deformation is large, making it easy for the hook 322 to detach from the fourth engaging portion 130, resulting in unreliable engagement between the hook 322 and the fourth engaging portion 130. Therefore, in this embodiment, the length L4 and thickness d of the third connecting segment 321 satisfy the following relationship: 8×d≥L4≥5×d. This avoids the third connecting segment 321 being too short or too long.

[0113] In some examples, the elastic modulus of the third snap-fit ​​portion 320 may be greater than or equal to 2000 MPa and less than or equal to 3000 MPa to ensure the elastic deformation capability of the third snap-fit ​​portion 320. The third snap-fit ​​portion 320 may be made of polycarbonate (PC), ABS plastic, nylon (PA), glass fiber reinforced polypropylene (PP) or glass fiber reinforced polyphenylene oxide (PPO).

[0114] In some embodiments, the battery management module provided in this application further includes an adhesive component, through which the mounting bracket 300 and the beam 100 are bonded. This makes the connection between the mounting bracket 300 and the beam 100 more stable and reliable.

[0115] In practice, the adhesive is a structural adhesive that fills the space between the inner wall of the receiving groove 110 and the mounting bracket 300.

[0116] Specifically, first connect the mounting bracket 300 to the signal module 200, then place the mounting bracket 300 and the signal module 200 into the receiving groove 110. Next, add structural adhesive into the receiving groove 110 so that the structural adhesive fills the space between the inner wall of the receiving groove 110 and the mounting bracket 300.

[0117] Reference Figure 7 and Figure 10 As shown, in some embodiments, the mounting bracket 300 has at least one mounting post 330, and the signal module 200 has at least one mounting hole 210, with the mounting post 330 correspondingly inserted into the mounting hole 210.

[0118] Specifically, by inserting the mounting post 330 into the mounting hole 210, the signal module 200 is fixed on the mounting bracket 300, preventing the signal module 200 from moving relative to the mounting bracket 300.

[0119] For example, the mounting hole 210 mates with the mounting post 330. For instance, the mounting post 330 is cylindrical, and the mounting hole 210 is a circular hole.

[0120] In some examples, the mounting holes 210 are located on the periphery of the signal module 200. There are at least two mounting holes 210, each of which is located on opposite sides of the signal module 200.

[0121] Reference Figure 4 , Figure 5 , Figure 11 and Figure 12 As shown, in some embodiments, the battery management module provided in this application also includes at least one protective cover 400, which covers part of the signal module 200 and is connected to the mounting bracket 300.

[0122] The protective cover 400 has good insulation properties. By providing the protective cover 400, the possibility of the signal module 200 coming into contact with the beam 100 is reduced, thereby protecting the signal module 200. In addition, the mounting bracket 300 and the protective cover 400 can be correspondingly covered on opposite sides of the signal module 200, thus facilitating the connection between the mounting bracket 300 and the signal module 200.

[0123] In some embodiments, the mounting bracket 300 has two grooves 351 with openings facing opposite directions. The grooves 351 are used to accommodate the signal module 200. There are two protective covers 400, each of which is correspondingly placed over the opening of the groove 351.

[0124] The beam 100 is located between the two battery packs, and the openings of the two grooves 351 face the two battery packs respectively. The signal module 200 is located in the groove 351 to facilitate electrical connection between the signal module 200 and the two battery packs, thereby enabling the signal module 200 to collect information from the battery packs.

[0125] For example, the mounting bracket 300 includes two mounting frames 350, with recesses 351 located on the bracket. Two protective covers 400 are abutted over the openings of the corresponding recesses 351 and connected to the corresponding mounting frames 350.

[0126] In some examples, the signal module 200 has at least one connection portion 220, which is electrically connected to the battery pack. The protective cover 400 is provided with at least one clearance portion to allow the connection portion 220 to be exposed, thereby facilitating the electrical connection of the connection portion 220 to the battery pack.

[0127] Reference Figure 7 and Figure 12 As shown, in a specific implementation, the mounting bracket 300 has at least one fifth snap-fit ​​portion 340, and the protective cover 400 has at least one sixth snap-fit ​​portion 410, with the fifth snap-fit ​​portion 340 and the sixth snap-fit ​​portion 410 snapping into each other.

[0128] There are at least two fifth snap-fit ​​parts 340, which are provided on at least two sides of the groove 351 to improve the stability and reliability of the snap-fit ​​between the mounting bracket 300 and the protective cover 400.

[0129] For example, the protective cover 400 includes a cover body and at least two bends, the cover body covering the protective module 200, and a sixth snap-fit ​​portion 410 located on the bends.

[0130] In some examples, the fifth latching portion 340 is a hook facing away from the interior of the groove 351. The sixth latching portion 410 is a second latching hole 410a that matches the hook. For example, the structure of the fifth latching portion 340 can be the same as that of the third latching portion 320.

[0131] In some examples, a first abutting rib 360 is provided on the second side 302 of the mounting bracket 300, and a second abutting rib 420 is provided on the side of the cover plate of the protective cover 400 facing away from the groove. The first abutting rib 360 and the second abutting rib 420 abut against the side wall of the receiving groove 110 to improve the stability of the mounting bracket 300 and the protective cover 400 in the receiving groove 110, reduce the possibility of the mounting bracket 300 and the protective cover 400 shaking in the receiving groove 110, and thus reduce the possibility of the signal module 200 contacting or colliding with the beam 100.

[0132] Furthermore, the mounting bracket 300 is provided with a third abutting rib 370, which abuts against the bottom wall of the receiving groove 110, further improving the stability of the mounting bracket 300 within the receiving groove 110.

[0133] In some examples, the protective cover 400 is provided with a plurality of intersecting reinforcing ribs 430 on the side facing the signal module 200 to improve the structural strength and reliability of the protective cover 400.

[0134] In some examples, at least one abutment post 440 is provided on the side of the protective cover 400 facing the signal module 200, and the abutment post 440 abuts against the signal module 200 to improve the stability of the signal module 200.

[0135] Specifically, when assembling the battery management module, the signal module 200 is first placed in the groove, and each mounting post 330 is inserted into the corresponding mounting hole 210 to mount the signal module 200 on the mounting bracket 300. Then, two protective covers 400 are placed over the openings of the two grooves, and the fifth snap-fit ​​part 340 and the sixth snap-fit ​​part 410 are snapped together to engage the protective covers 400 with the mounting bracket 300. Then, the signal module 200, mounting bracket 300, and protective cover 400 are inserted into the receiving groove 110 through the insertion interface of the receiving groove 110, and the first snap-fit ​​part 310 is snapped into the second snap-fit ​​part 120, and the third snap-fit ​​part 320 is snapped into the fourth snap-fit ​​part 130, so that the mounting bracket 300 is snapped into the beam 100. Then, the signal module 200 can be fixed in the receiving groove 110 through the mounting bracket 300, thus completing the assembly of the signal module 200, mounting bracket 300, protective cover 400, and beam 100.

[0136] Based on the above embodiments, this application provides a battery device, including a battery pack and a battery management module disposed on one side of the battery pack, wherein the battery pack is electrically connected to a signal module 200.

[0137] The specific structure of the battery management module has been described in detail in the above embodiments, and will not be repeated here.

[0138] The battery pack is electrically connected to the signal module 200 in the battery management module. The signal module 200 is used to collect the voltage and current information of the battery pack, as well as the temperature information inside the battery device, in order to determine the real-time status of the battery pack and to ensure the performance and safety of the battery pack.

[0139] In one possible implementation, the battery device further includes a housing, with a beam 100 disposed inside the housing and dividing the housing into multiple receiving cavities. There are multiple battery packs, each located in one of the multiple receiving cavities. The signal module 200 can be electrically connected to some of the battery packs or to all of the battery packs.

[0140] The battery device provided in this application embodiment, by setting up a beam 100, houses the signal module 200 within the receiving groove 110 of the beam 100. This protects the signal module 200 from damage during extreme conditions such as battery pack expansion or thermal expansion, ensuring that the signal module 200 can collect battery pack information in real time for easy assessment of the battery pack's real-time status. A mounting bracket 300 connects the signal module 200 to the beam 100, fixing the signal module 200 within the receiving groove 110. The mounting bracket 300 also covers at least a portion of the signal module 200, reducing the possibility of direct contact between the signal module 200 and the beam 100, thus mitigating insulation risks between them.

[0141] Based on the above embodiments, this application provides an electrical device, including a device body and any of the above-mentioned battery devices disposed on the device body.

[0142] The specific structure of the battery device has been described in detail in the above embodiments, and will not be repeated here.

[0143] For example, electrical equipment includes vehicles.

[0144] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0145] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0146] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0147] Unless otherwise stated, the term "multiple" means two or more.

[0148] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the scope of this application is limited only by the appended claims.

Claims

1. A battery management module, characterized in that, include: A beam body (100) having a receiving groove (110) inside; A signal module (200) is disposed in the receiving slot (110).

2. The battery management module according to claim 1, characterized in that, It also includes a mounting bracket (300) that covers at least a portion of the signal module (200) and is connected to the signal module (200), and the mounting bracket (300) is connected to the beam (100).

3. The battery management module according to claim 2, characterized in that, The mounting bracket (300) has at least one first snap-fit ​​portion (310), and the beam (100) has at least one second snap-fit ​​portion (120), wherein the first snap-fit ​​portion (310) and the second snap-fit ​​portion (120) are snapped together.

4. The battery management module according to claim 3, characterized in that, The mounting bracket (300) has two first side surfaces (301) arranged opposite to each other along the length direction of the mounting bracket (300), and the first snap-fit ​​portion (310) is provided on the first side surface (301).

5. The battery management module according to claim 4, characterized in that, The first snap-fit ​​portion (310) includes at least two spaced-apart first snap-fit ​​ribs (311), and the second snap-fit ​​portion (120) includes at least one second snap-fit ​​rib. At least two of the first snap-fit ​​ribs (311) are snapped between opposite sides of the second snap-fit ​​rib.

6. The battery management module according to claim 5, characterized in that, The first snap-fit ​​portion (310) further includes a first connecting segment (312) and a second connecting segment (313), the second connecting segment (313) being spaced apart from the first side surface (301), and the first connecting segment (312) connecting the first side surface (301) and the second connecting segment (313); The first snap-fit ​​rib (311) is connected to the side of the second connecting segment (313) that is away from the first side (301).

7. The battery management module according to claim 6, characterized in that, The distance between the second connecting segment (313) and the first side (301) is greater than or equal to twice the length of the first snap-fit ​​rib (311) in the length direction of the mounting bracket (300).

8. The battery management module according to claim 6, characterized in that, The first connecting segment (312) is inclined relative to the first side surface (301), and the angle between the first connecting segment (312) and the first side surface (301) is greater than or equal to 10° and less than or equal to 30°.

9. The battery management module according to claim 6, characterized in that, The thickness t of the first connecting segment (312) is greater than or equal to 1.5 mm and less than or equal to 2.5 mm; And / or, the length L3 of the first connecting segment (312) and the thickness t of the first connecting segment (312) satisfy the following relationship: 8×t≥L3≥5×t.

10. The battery management module according to claim 6, characterized in that, The first snap-fit ​​portion (310) further includes an arc-shaped segment (314), which connects the first connecting segment (312) and the first side surface (301).

11. The battery management module according to claim 4, characterized in that, The mounting bracket (300) has two second side surfaces (302) arranged opposite to each other along the width direction of the mounting bracket (300), the second side surfaces (302) intersecting with the first side surface (301), at least one third snap-fit ​​portion (320) is provided on at least one second side surface (302), and the beam body (100) has at least one fourth snap-fit ​​portion (130), the third snap-fit ​​portion (320) and the fourth snap-fit ​​portion (130) are snapped together accordingly.

12. The battery management module according to claim 11, characterized in that, The third snap-fit ​​portion (320) includes a third connecting section (321) and a hook (322) connected to the third connecting section (321). The third connecting section (321) is connected to the second side surface (302). The fourth snap-fit ​​portion (130) is a first snap hole (130a) that matches the hook (322).

13. The battery management module according to claim 12, characterized in that, The hook (322) has a guide surface (323) which is used to guide the third snap-fit ​​part (320) when the mounting bracket (300) is inserted into the receiving groove (110).

14. The battery management module according to claim 13, characterized in that, The angle between the plane containing the guide surface (323) and the third connecting segment (321) is greater than or equal to 30° and less than or equal to 45°.

15. The battery management module according to claim 12, characterized in that, The hook (322) has a locking surface (324), and the locking surface (324) and the third connecting segment (321) form a locking angle, which is greater than or equal to 85° and less than or equal to 95°.

16. The battery management module according to claim 12, characterized in that, The thickness d of the third connecting segment (321) is greater than or equal to 1 mm and less than or equal to 1.6 mm; And / or, the length L4 of the third connecting segment (321) and the thickness d of the third connecting segment (321) satisfy the following relationship: 8×d≥L4≥5×d.

17. The battery management module according to claim 2, characterized in that, It also includes an adhesive, through which the mounting bracket (300) is bonded to the beam (100).

18. The battery management module according to claim 17, characterized in that, The adhesive is a structural adhesive filled between the inner wall of the receiving groove (110) and the mounting bracket (300).

19. The battery management module according to any one of claims 2-18, characterized in that, The mounting bracket (300) has at least one mounting post (330), and the signal module (200) has at least one mounting hole (210), with the mounting post (330) correspondingly inserted into the mounting hole (210).

20. The battery management module according to any one of claims 2-18, characterized in that, It also includes at least one protective cover (400) that covers a portion of the signal module (200) and is connected to the mounting bracket (300).

21. The battery management module according to claim 20, characterized in that, The mounting bracket (300) has two grooves (351) with openings facing opposite directions. The grooves (351) are used to accommodate the signal module (200). There are two protective covers (400), which are respectively placed on the openings of the grooves (351).

22. The battery management module according to claim 20, characterized in that, The mounting bracket (300) has at least one fifth snap-fit ​​portion (340), and the protective cover (400) has at least one sixth snap-fit ​​portion (410), wherein the fifth snap-fit ​​portion (340) and the sixth snap-fit ​​portion (410) are snapped together.

23. The battery management module according to claim 11, characterized in that, The mounting bracket (300) is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene or glass fiber reinforced polyphenylene ether; And / or, the first snap-fit ​​portion (310) is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene or glass fiber reinforced polyphenylene ether; And / or, the third snap-fit ​​portion (320) is made of one of polycarbonate, ABS plastic, nylon, glass fiber reinforced polypropylene or glass fiber reinforced polyphenylene ether.

24. A battery device, characterized in that, The battery pack includes a battery management module as described in any one of claims 1-23 disposed on one side of the battery pack, wherein the battery pack is electrically connected to the signal module (200).

25. The battery device according to claim 24, characterized in that, It also includes a housing, the beam (100) is disposed in the housing and divides the housing into multiple receiving cavities, there are multiple battery packs, the multiple battery packs are respectively located in the multiple receiving cavities, and the signal module (200) is electrically connected to at least one of the battery packs.

26. An electrical appliance, characterized in that, It includes a device body and a battery device as described in claims 24-25 or a battery management module as described in any one of claims 1-23, disposed on the device body.

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