Battery devices and electrical appliances

Abstract

This application discloses a battery device and an electrical device, relating to the field of battery technology. The battery device includes a housing assembly, a battery cell assembly, a first adhesive barrier structure, and a low-voltage sampling module. The housing assembly has a receiving cavity, and the battery cell assembly is disposed within the receiving cavity. The battery cell assembly is fixed to the first wall of the housing assembly by adhesive. The first adhesive barrier structure is fixed to the first wall and is disposed on one side of the battery cell assembly in a first direction, extending along a second direction at an angle to the first direction. The low-voltage sampling module is disposed within the receiving cavity and is located on the side of the first adhesive barrier structure facing away from the battery cell assembly in the first direction. The low-voltage sampling module is electrically connected to the battery cell assembly to collect low-voltage data from the battery cell assembly. The technical solution of this application can reduce the impact of adhesive on the low-voltage sampling module when bonding the battery cell assembly to the housing assembly.

Description

Technical Field

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

[0002] With the rapid development of new energy vehicles, batteries are increasingly coming into the public eye. Battery devices typically include battery cell assemblies composed of multiple battery cells, which can be connected in series, parallel, or series-parallel in a housing assembly.

[0003] In related technologies, battery cell modules are fixed to the housing assembly by structural adhesive. During the adhesive injection process, the structural adhesive can easily flow to other areas of the housing assembly, affecting devices such as low-voltage sampling modules installed in the battery device. Utility Model Content

[0004] The main objective of this application is to provide a battery device and an electrical device designed to reduce the impact of adhesive on the low-voltage sampling module when bonding and fixing the battery cell assembly to the housing assembly.

[0005] To achieve the above objectives, the battery device proposed in this application includes:

[0006] A housing assembly, wherein the housing assembly has a receiving cavity;

[0007] A battery cell assembly is disposed within the receiving cavity; wherein the battery cell assembly is fixed to the first wall of the housing assembly by adhesive application.

[0008] The first adhesive barrier structure is fixed to the first box wall. The first adhesive barrier structure is disposed on one side of the battery unit assembly in a first direction, and the first adhesive barrier structure extends along a second direction. The first direction and the second direction are arranged at an angle.

[0009] A low-pressure sampling module is disposed within the receiving cavity, and the low-pressure sampling module is disposed on the side of the first adhesive barrier structure facing away from the battery cell assembly in the first direction. The low-pressure sampling module is electrically connected to the battery cell assembly to collect low-pressure data of the battery cell assembly.

[0010] The technical solution of this application, through the setting of the first adhesive-blocking structure, prevents the adhesive from flowing into the installation area of ​​the low-voltage sampling module during the process of injecting adhesive into the housing assembly to bond and fix the battery unit assembly in the receiving cavity. This avoids the low-voltage sampling module from being contaminated with adhesive, thereby preventing any impact on the performance and disassembly of the low-voltage sampling module. Simultaneously, the setting of the first adhesive-blocking structure allows the adhesive to be injected within the height range of the first adhesive-blocking structure, enabling the battery unit assembly to also bond with the first adhesive-blocking structure. This improves the connection strength and stability of the battery unit assembly installed in the housing assembly, reduces the risk of battery unit assembly detachment, and is beneficial for improving the overall main frequency of the module.

[0011] In one embodiment, the housing assembly includes a first housing wall, two second housing walls disposed opposite to each other along the first direction, and two third housing walls disposed opposite to each other along the second direction, wherein the first adhesive-blocking structure is integrally formed with the first housing wall.

[0012] This design not only improves the ease of manufacturing the housing assembly and the first adhesive barrier structure, reducing assembly steps, but also enhances the connection strength between the first adhesive barrier structure and the housing assembly, thereby improving the connection strength between the battery cell assembly and the housing assembly and increasing the overall structural stability.

[0013] In one embodiment, the first box wall and the second box wall are integrally formed.

[0014] Using the above method, the preparation of the housing components is more convenient, which is conducive to improving production efficiency; and it can also improve the structural strength of the housing components.

[0015] In one embodiment, the battery device has two first adhesive-blocking structures arranged side by side along the first direction, and the first mounting area is located between the two first adhesive-blocking structures.

[0016] This setup allows for effective containment of the battery cell assembly in the first direction using two first adhesive barriers; it also creates mounting areas on both sides of the battery cell assembly that are less susceptible to adhesive contamination, thus preventing any impact on the low-voltage sampling modules or other devices mounted on either side of the battery cell assembly.

[0017] In one embodiment, the low-voltage sampling module includes a first sampling module and a second sampling module, the first sampling module and the second sampling module being located on both sides of the battery cell assembly along the first direction, respectively.

[0018] Using the above method, two first adhesive-blocking structures physically separate the enclosure assembly, forming two second mounting areas on either side of the first mounting area. The first sampling module and the second sampling module are respectively installed in the two second mounting areas, making full use of the space of the enclosure assembly in the first direction. Both the first and second sampling modules have ample installation space, avoiding interference during assembly and disassembly. At this point, the space on both side walls of the enclosure assembly in the width direction can be used for the arrangement of low-voltage connection harnesses, maximizing the utilization of the internal space of the enclosure assembly. The two first adhesive-blocking structures also prevent adhesive from flowing into the first and second sampling modules, respectively.

[0019] In one embodiment, the height of the first adhesive barrier structure is set to 15mm to 30mm.

[0020] By employing the above method, the first adhesive barrier structure is at least 15mm thick, ensuring its effective adhesive-blocking function and allowing for the injection of more structural adhesive in the mounting area for fixing the battery unit assembly. This guarantees the bonding strength and stability of the battery unit assembly within the housing cavity. Keeping the first adhesive barrier structure at least 30mm high prevents it from obstructing the battery unit assembly's insertion into the housing, improving the ease of assembly and disassembly. It also prevents interference from the first adhesive barrier structure when assembling or removing other components from the battery assembly.

[0021] In one embodiment, the length of the first adhesive barrier structure along the second direction is not less than the length of the battery cell assembly along the second direction.

[0022] Using the above method, the adhesive used to bond the battery unit assembly can be blocked at all positions in the second direction by the first adhesive-blocking structure and will not flow to the low-voltage sampling module; thus, the entire bottom area of ​​the battery unit assembly in the second direction can be coated with adhesive to fix it to the first box wall, which is beneficial to improving the connection strength and stability of the battery unit assembly fixed in the receiving cavity.

[0023] In one embodiment, the battery cell assembly is bonded and fixed to the first adhesive barrier structure.

[0024] By adopting the above method, the battery unit assembly is bonded to the first adhesive structure on a portion of its side facing the first adhesive structure. At this time, both the side of the battery unit assembly facing the first adhesive structure and the surface facing the first box wall are bonded and fixed, which helps to improve the stability of the battery unit assembly installed in the box assembly and improve the overall structural stability of the battery device.

[0025] In one embodiment, the side wall of the housing assembly is provided with an installation port communicating with the receiving cavity, and the low-pressure sampling module is detachably installed in the installation port.

[0026] Using the above method, the low-pressure sampling module can be directly installed and removed from the outside of the enclosure assembly. When maintenance of the low-pressure sampling module is required, it can be removed from the installation port outwards without opening the enclosure cover, thus improving the convenience of maintenance of the low-pressure sampling module.

[0027] In one embodiment, the low-voltage sampling module includes:

[0028] A connecting bracket, which covers the mounting opening from the outside of the receiving cavity and is detachably connected to the housing assembly; and

[0029] The module body is disposed on the surface of the connecting bracket facing the receiving cavity.

[0030] By employing the above method, the mounting opening can be sealed using the connecting bracket, ensuring the internal airtightness of the enclosure assembly and reducing the risk of foreign objects entering the receiving cavity. The connecting bracket and the outer wall of the enclosure assembly also act as a limit, preventing the low-pressure sampling module from excessively extending into the receiving cavity. Simultaneously, this method also increases the connection area between the low-pressure sampling module and the enclosure assembly, thereby improving the connection strength.

[0031] In one embodiment, the connecting bracket includes:

[0032] A connecting part is provided around the circumference of the mounting opening, the connecting part covers the outer wall of the housing assembly, and is detachably connected to the housing assembly;

[0033] A protrusion is provided that protrudes toward the receiving cavity relative to the connecting portion, and the module body is provided on the surface of the protrusion toward the receiving cavity.

[0034] By using the above method, a protective structure is formed by the cooperation between the protrusion and the side wall of the housing assembly at the edge of the mounting port. This can prevent the flame from spreading outward along the mounting port when a fire occurs inside the battery device, and can prevent the flame from directly contacting the external components of the housing cavity. For example, it can prevent the flame from directly contacting the seal between the connection part and the outer wall of the housing assembly.

[0035] In one embodiment, the sidewall where the protrusion connects to the connecting portion is inclined or bent in a direction away from the connecting portion.

[0036] Using the above method, the cross-sectional size of the protrusion gradually decreases along the direction close to the receiving cavity, so that the protrusion will not interfere with the edge of the mounting port when it is inserted into the mounting port for installation. It also allows the connection part to be installed close to the outer wall of the housing assembly, avoiding the problem of unstable installation due to installation gaps. In addition, it also ensures that the protrusion and the side wall of the housing assembly at the edge of the mounting port can form a better protective structure.

[0037] In one embodiment, the battery device further includes a low-voltage connection harness extending along the side wall of the housing assembly, and the low-voltage connection harness being connected to the battery cell assembly and the low-voltage sampling module, respectively.

[0038] The above method utilizes the space on the side wall of the enclosure component to arrange low-voltage connection harnesses, thereby maximizing the use of the internal space of the enclosure component.

[0039] In one embodiment, the low-voltage connection harness includes a first harness, a second harness, and a third harness. The first harness is fixed to the side wall of the housing assembly, and the second harness extends from a first branch point of the first harness toward the battery cell assembly and is electrically connected to the battery cell assembly.

[0040] The third wiring harness extends from the second branch point of the first wiring harness toward the low-voltage sampling module and is electrically connected to the low-voltage sampling module. The length of the third wiring harness is greater than the distance between the second branch point and the low-voltage sampling module.

[0041] By adopting the above method, the third wire harness in the low-voltage connection harness, which extends from the branch of the first wire harness to the low-voltage sampling module, is set to be longer, which is redundant compared to the distance between the first wire harness and the low-voltage sampling module, thereby facilitating the assembly and disassembly of the low-voltage sampling module.

[0042] In one embodiment, the battery device further includes a low-voltage connector configured for electrical connection to an external device, and the low-voltage connection harness is electrically connected to the low-voltage connector. In this configuration, the battery device can be electrically connected to an external device via the low-voltage connector for transmitting low-voltage signals or for powering low-power devices.

[0043] In one embodiment, the low-voltage connection harness is detachably connected to the low-voltage sampling module.

[0044] This configuration allows the low-voltage sampling module to be removed entirely from the housing assembly without needing to be disassembled and reassembled together with the low-voltage connection harness.

[0045] In one embodiment, the battery device further includes a high-voltage circuit module disposed on the side wall of the housing assembly and electrically connected to the battery cell assembly.

[0046] The high-voltage circuit module is equipped with a high-voltage connector, which is configured for electrical connection with external equipment.

[0047] Using the above method, the battery device can be electrically connected to external equipment through a high-voltage connector to transmit a large current to meet the power supply needs of high-power devices.

[0048] In one embodiment, the high-voltage circuit module is provided with a high-voltage interlock circuit, and the low-voltage sampling module is electrically connected to the high-voltage interlock circuit;

[0049] In this configuration, the high-voltage interlock circuit is a protective circuit used to detect the integrity or continuity of the high-voltage circuit. It detects the on / off status of the high-voltage circuit through a low-voltage signal, so that when an abnormal disconnection of the high-voltage circuit is detected, an alarm is triggered in time and the high-voltage power supply is cut off to avoid the risk of electric shock.

[0050] In one embodiment, the high-voltage circuit module includes a maintenance switch circuit breaker.

[0051] Using the above method, the high-voltage circuit can be physically disconnected manually through the maintenance switch circuit breaker, ensuring that the risk of high-voltage electric shock is avoided during maintenance. Furthermore, the maintenance switch circuit breaker can work in conjunction with a high-voltage interlock circuit, triggering the high-voltage interlock function when the high-voltage circuit is disconnected via the maintenance switch circuit breaker, further cutting off the high-voltage circuit.

[0052] In one embodiment, the battery device further includes a second adhesive barrier structure, which is fixed to the first housing wall and is disposed on one side of the battery cell assembly in the second direction and extends along the first direction.

[0053] The high-voltage circuit module is disposed on the side of the second adhesive barrier structure facing away from the battery cell assembly in the second direction.

[0054] Using the above method, during the process of injecting adhesive into the housing assembly to bond and fix the battery unit assembly in the receiving cavity, the adhesive can be blocked by the second adhesive barrier structure to prevent adhesive from flowing into the high-voltage circuit module, thereby reducing the impact on the high-voltage circuit module. Furthermore, the second adhesive barrier structure can also limit and position the battery unit assembly in different directions from the first adhesive barrier structure, ensuring accurate installation of the battery unit assembly. Simultaneously, during the process of injecting adhesive into the receiving cavity to bond the battery unit assembly, some structural adhesive can be sandwiched between the battery unit assembly and the second adhesive barrier structure to bond the battery unit assembly and the second adhesive barrier structure, thereby improving the connection strength and stability of the battery unit assembly fixed in the receiving cavity. In addition, the second adhesive barrier structure can also act as a reinforcing rib to improve the structural strength of the housing assembly and reduce the risk of bending deformation of the first wall of the housing assembly.

[0055] In one embodiment, the end of the second adhesive barrier structure abuts against the side wall of the housing assembly.

[0056] This design helps to improve the structural strength and stability of the enclosure components.

[0057] In one embodiment, the battery cell assembly is configured as a battery module, and the plurality of battery cells of the battery cell assembly are connected as an integral module by connectors.

[0058] Using the above method, multiple battery cells are connected to form a modular structure to form a battery module, which facilitates the management and disassembly of battery cell components.

[0059] This application also proposes an electrical device, including a battery device as described in any of the foregoing embodiments.

[0060] By using the battery device described in the preceding embodiments of this application in the electrical device, it is possible to avoid the structural adhesive used when bonding the battery cell assembly from contaminating the low-voltage sampling module and affecting the performance and disassembly of the low-voltage sampling module.

[0061] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0062] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0063] Figure 1 This is a structural diagram of one embodiment of a vehicle according to some embodiments of this application;

[0064] Figure 2 An exploded view of one embodiment of a battery device according to some embodiments of this application;

[0065] Figure 3 for Figure 2 Exploded view of the battery unit with battery cells removed from the battery device;

[0066] Figure 4 for Figure 2 Structural diagram of the battery unit with battery cell assembly and case cover removed;

[0067] Figure 5 for Figure 4 A structural diagram from another perspective;

[0068] Figure 6 This is a cross-sectional view of one embodiment of a battery device according to some embodiments of this application;

[0069] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0070] Figure 8 This is a structural diagram of the housing in a battery device according to some embodiments of this application.

[0071] Explanation of icon numbers:

[0072] 1000. Vehicle; 100. Battery unit; 10. Housing assembly; 11. Housing; 111. First housing wall; 112. Second housing wall; 113. Third housing wall; 114. Receiving cavity; 1141. First mounting area; 1142. Second mounting area; 115. Mounting port; 12. Housing cover; 13. First sealing structure; 14. Second sealing structure; 20. Battery unit assembly; 30. Low-voltage sampling module; 31. Connecting bracket; 311. Connecting part; 312. Protrusion; 32. Module body; 301. First sampling module; 302. Second sampling module; 40. Low-voltage connecting harness; 41. First harness; 42. Second harness; 43. Third harness; 50. High-voltage circuit module; 51. High-voltage connector; 60. Low-voltage connector; 200. Controller; 300. Motor; X, First direction; Y, Second direction.

[0073] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0074] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0075] 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 application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0076] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0077] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0078] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0079] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0080] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0081] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0082] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in rail transportation, military equipment, and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0083] The battery cell assembly is fixed to the housing assembly by structural adhesive. During the adhesive injection process, the structural adhesive can easily flow to other areas of the housing assembly, which may affect devices such as the low-voltage sampling module installed in the battery device.

[0084] Based on the above considerations, to address the issue of adhesive affecting the low-voltage sampling module during the bonding of battery cell components to the housing assembly, a battery device is designed. This device includes a housing assembly, a first adhesive-blocking structure, battery cell components, and a low-voltage sampling module. The housing assembly has a receiving cavity; the battery cell components are disposed within the receiving cavity and fixed to the first wall of the housing assembly by adhesive application; the first adhesive-blocking structure is fixed to the first wall and is disposed on one side of the battery cell component in a first direction, extending along a second direction at an angle to the first and second directions; the low-voltage sampling module is disposed within the receiving cavity and is located on the side of the first adhesive-blocking structure facing away from the battery cell component in the first direction; the low-voltage sampling module is electrically connected to the battery cell component to collect low-voltage data from the battery cell component.

[0085] This battery device, through the design of the first adhesive-blocking structure, prevents adhesive from flowing into the mounting area of ​​the low-voltage sampling module during the process of injecting adhesive into the housing assembly to bond and fix the battery unit assembly in the receiving cavity. This avoids adhesive contamination of the low-voltage sampling module, thus preventing any impact on its performance and disassembly. Simultaneously, the first adhesive-blocking structure allows adhesive to be injected up to its height, enabling the battery unit assembly to bond to it as well. This improves the connection strength and stability of the battery unit assembly within the housing assembly, reduces the risk of battery unit assembly detachment, and ultimately contributes to increasing the overall clock speed of the module.

[0086] The battery device in this application can serve as a power source or power system for an electrical device. The battery device refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. This is beneficial for improving the overall performance of the battery device and facilitating its promotion.

[0087] The aforementioned electrical devices may include, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, rail trains, ships, spacecraft, etc. Among them, electric toys may include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0088] For ease of explanation, the following embodiments will be described using a vehicle or rail train as an example of an electrical device according to an embodiment of this application.

[0089] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a rail train, a fuel-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle, and the battery can be located at the bottom, front, or rear of the vehicle. The battery can be used to power the vehicle 1000; for example, the battery device 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power needs of starting, navigating, and driving the vehicle 1000. In some embodiments of this application, the battery device 100 can also serve as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000, and can also be used to power electrical appliances on the vehicle 1000.

[0090] The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies 20 for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, parallel, or mixed connections via busbars.

[0091] In some embodiments, the battery cell assembly 20 is typically formed by arranging a plurality of battery cells.

[0092] As an example, the battery cell assembly 20 can be a battery module, which is formed by arranging and fixing multiple battery cells together to form an independent module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties.

[0093] In some embodiments, the battery device 100 may be a battery pack, which includes a housing 11 and one or more battery cell assemblies 20, the battery cell assemblies 20 being housed within the housing 11. As an example, the battery cell assembly 20 may be a battery module, which can be housed within the housing 11 by securing the battery module to the housing 11. Alternatively, the battery cell assembly 20 may be housed within the housing 11 by directly securing multiple individual battery cells to the housing 11.

[0094] The battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell can be cylindrical, flat, cuboid, or other shapes.

[0095] Please refer to Figures 2 to 4 The battery device 100 proposed in this application includes a housing assembly 10, a first adhesive barrier structure 13, a battery unit assembly 20, and a low-voltage sampling module 30. The housing assembly 10 has a receiving cavity 114. The battery unit assembly 20 is disposed in the receiving cavity 114 and is fixed to the first housing wall 111 of the housing assembly 10 by adhesive. The first adhesive barrier structure 13 is fixed to the first housing wall 111 and is disposed on one side of the battery unit assembly 20 in the first direction X, and extends along the second direction Y. The first direction X and the second direction Y are arranged at an angle. The low-voltage sampling module 30 is disposed in the receiving cavity 114 and is disposed on the side of the first adhesive barrier structure 13 away from the battery unit assembly 20 in the first direction X. The low-voltage sampling module 30 is electrically connected to the battery unit assembly 20 to collect low-voltage data of the battery unit assembly 20.

[0096] In this embodiment, the housing assembly 10 can be configured as a cuboid or other polygonal structure. The housing assembly 10 typically includes a housing 11 and a lid 12. The housing 11, as the main structure of the housing assembly 10, includes a first housing wall 111 and side walls surrounding the first housing wall 111. The first housing wall 111 and the side walls enclose a receiving cavity 114 with an opening. The opening of the receiving cavity 114 is positioned opposite to the first housing wall 111 along the height direction of the housing assembly 10. The lid 12 is a component that covers the opening of the housing 11 to isolate the receiving cavity 114 from the external environment. The shape of the lid 12 can be adapted to the shape of the housing 11 to fit the housing 11. Optionally, a fireproof layer may be provided on the inner wall of the housing assembly 10 to prevent the housing assembly 10 from being burned through and causing the flames to spread outward when the battery cells or other devices inside the housing assembly 10 catch fire. Of course, in some embodiments, a fireproof layer may also be provided on the outer wall of the housing assembly 10 to prevent the flames from burning through the housing assembly 10 and igniting the battery cells inside when the outside catches fire, thus avoiding greater safety hazards.

[0097] The battery unit assembly 20 is composed of multiple battery cells, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells are connected in both series and parallel configurations. Multiple battery cells can also be directly connected in series, parallel, or in a mixed manner. In this embodiment, the battery unit assembly 20 includes multiple rows of battery packs arranged side-by-side along the width direction of the battery device 100, and each row of battery packs includes several battery cells stacked along the length direction of the battery device 100. In this embodiment, the battery unit assembly 20 is bonded to the first wall of the housing assembly 10 by applying adhesive in the receiving cavity 114. The first wall is a wall surface used to support the battery unit assembly 20, such as the bottom wall opposite the opening of the receiving cavity 114 through which the battery unit assembly 20 enters and exits. Optionally, each battery cell of the battery cell assembly 20 can be individually bonded and fixed in the receiving cavity 114, or the battery cell assembly 20 can be configured as a battery module, with multiple battery cells connected as a whole module by cable ties or other connectors and bonded together in the receiving cavity 114.

[0098] The low-voltage sampling module 30 is a functional module used to collect low-voltage data such as voltage and temperature of the battery cell assembly 20 in the battery device 100. It can monitor the status of the battery cell assembly 20 in real time to ensure its safe and efficient operation. The low-voltage sampling module 30 is usually used in conjunction with the battery management system. It acquires signal parameters such as voltage and temperature of the battery cell assembly 20 through sensors and sampling circuits, and transmits these signals to the battery management system for processing and analysis. The battery management system can be installed in the housing assembly 10 or set up independently of the housing assembly 10.

[0099] The low-voltage sampling module 30 includes, but is not limited to, voltage sampling circuits and temperature sampling circuits; optionally, the low-voltage sampling module 30 may also be equipped with an analog-to-digital converter for converting voltage / temperature signals into digital signals; it may also include protection circuits, filtering circuits, and other modules.

[0100] The low-pressure sampling module 30 is installed in the housing assembly 10. The low-pressure sampling module 30 can be modularly set as a whole and fixed on the side wall or the first housing wall 111 of the housing assembly 10, or the low-pressure sampling module 30 can be divided into at least two parts for separate installation.

[0101] In this embodiment, a first adhesive-blocking structure 13 is provided on the first wall of the receiving cavity 114. The first adhesive-blocking structure 13 divides the receiving cavity 114 into a first mounting area 1141 and a second mounting area 1142. The second mounting area 1142 is located adjacent to the side wall of the housing assembly 10. The first mounting area 1141 is used to install the battery unit assembly 20, and the second mounting area 1142 is used to install the low-voltage sampling module 30, so that the low-voltage sampling module 30 is located on the side of the first adhesive-blocking structure 13 away from the battery unit assembly 20. By providing the first adhesive-blocking structure 13, during the process of injecting adhesive into the housing assembly 10 to bond and fix the battery unit assembly 20 to the receiving cavity 114, the adhesive can be blocked by the first adhesive-blocking structure 13 to prevent it from flowing to the mounting area of ​​the low-voltage sampling module 30, thus preventing the low-voltage sampling module 30 from being contaminated with adhesive and avoiding any impact on the performance and disassembly of the low-voltage sampling module 30. Meanwhile, the setting of the first adhesive blocking structure 13 allows the adhesive to be injected into the height range of the first adhesive blocking structure 13, so that the battery unit assembly 20 can also be bonded to the first adhesive blocking structure 13, thereby improving the connection strength and stability of the battery unit assembly 20 installed in the housing assembly 10, reducing the risk of the battery unit assembly 20 delaminating, and helping to improve the overall main frequency of the module.

[0102] In some embodiments, the battery cell assembly 20 includes a plurality of battery packs arranged along the width direction of the battery device 100. Each battery pack includes a plurality of battery cells arranged along the length direction of the battery device 100. Each battery cell has two first surfaces facing away from each other along the width direction of the battery device 100, and two second surfaces facing away from each other along the length direction of the battery device 100. Both the first and second surfaces are outer surfaces of the battery device; wherein the surface area of ​​the second surface is larger than the surface area of ​​the first surface. This arrangement allows for the stacking of more battery cells in the battery packs along the length direction of the battery device 100, thereby increasing the battery capacity of the battery device 100.

[0103] In this embodiment, the first direction X can be the width direction of the battery device 100, and the corresponding second direction Y is the length direction of the battery device 100. In this case, the low-voltage sampling module 30 is disposed on at least one side of the battery cell assembly 20 along the width direction of the battery device 100, which can reduce the space occupied by the low-voltage sampling module 30 in the length direction of the battery device 100, allowing the battery cell assembly 20 to stack more battery cells in the length direction of the battery device 100, thereby increasing the number of battery cells in the battery device 100. In some embodiments, the first direction X can also be the length direction of the battery device 100, and the corresponding second direction Y is the width direction of the battery device 100. In this case, the low-voltage sampling module 30 is disposed on at least one side of the battery cell assembly 20 along the length direction of the battery device 100.

[0104] Optionally, the first adhesive barrier structure 13 and the housing assembly 10 can be made of the same material or different materials. For example, the housing assembly 10 is usually made of metal such as aluminum, while the first adhesive barrier structure 13 can be made of plastic or metal. No limitation is made here.

[0105] Optionally, the height of the first adhesive barrier structure 13 can be the same as or higher than that of the battery cell assembly 20, or the first adhesive barrier structure 13 can be lower than that of the battery cell assembly 20. For example, the first adhesive barrier structure 13 can be set as a rib structure with a relatively lower height than that of the battery cell assembly 20.

[0106] Optionally, the first adhesive barrier structure 13 can be connected to the housing assembly 10 by means of bonding, welding, bolting, etc. In this case, the battery unit assembly 20 can be connected to the first adhesive barrier structure 13 to indirectly connect to the housing assembly 10, or the battery unit assembly 20 can be bonded to both the first adhesive barrier structure 13 and the housing assembly 10 simultaneously. In some embodiments, the first adhesive barrier structure 13 can also be integrally formed with the first housing wall 111 of the housing assembly 10.

[0107] Please refer to Figure 4 and Figure 7 In one embodiment, the housing assembly 10 includes a first housing wall 111, two second housing walls 112 arranged opposite each other along a first direction X, and two third housing walls 113 arranged opposite each other along a second direction Y. The first adhesive barrier structure 13 is integrally formed with the first housing wall 111.

[0108] In this embodiment, the first box wall 111, the two second box walls 112, and the two third box walls 113 enclose and form a receiving cavity 114; the first baffle structure 13 is disposed in the area between the second box wall 112 and the battery unit assembly 20; the low-voltage sampling module 30 can be installed on the second box wall 112 or on the first box wall 111, and is located between the second box wall 112 and the first baffle structure 13.

[0109] The first baffle structure 13 and the first box wall 111 can be integrally formed by extrusion molding, injection molding, or machining directly onto the blank. The specific manufacturing method is not limited here. This arrangement improves the ease of manufacturing the box assembly 10 and the first baffle structure 13, reducing assembly steps. Furthermore, the first baffle structure 13 and the box assembly 10 have high connection strength. Simultaneously, by adopting this method, the first baffle structure 13 is also considered part of the box assembly 10, resulting in high structural strength, good verticality, and resistance to deformation. This eliminates the need to straighten the first baffle structure 13 during battery unit assembly 20 installation, improving installation convenience. It also increases the direct connection area between the battery unit assembly 20 and the box assembly 10, which helps improve the connection strength and overall structural stability.

[0110] In one embodiment, the first box wall 111 and the second box wall 112 are integrally formed.

[0111] In this embodiment, at least one second box wall 112 and the first box wall 111 can be integrally formed by extrusion molding, injection molding, bending, stamping, or machining directly onto the blank. The specific manufacturing method is not limited. Optionally, one of the second box walls 112 and the first box wall 111 can be integrally formed, or both second box walls 112 can be integrally formed with the first box wall 111. Using these methods, the manufacturing of the box assembly 10 is more convenient, which is beneficial for improving production efficiency; and it can also improve the structural strength of the box assembly 10.

[0112] Optionally, the end of the first adhesive-blocking structure 13 can abut against the third housing wall 113, so that the first adhesive-blocking structure 13, the two third housing walls 113, and the second housing wall 112 form the mounting area of ​​the battery unit assembly 20; or two first adhesive-blocking structures 13 are arranged side by side, so that the mounting area of ​​the battery unit assembly 20 is formed between the two first adhesive-blocking structures 13 and the two third housing walls 113. In this way, the battery unit assembly 20 can be limited, and the adhesive can be confined in the mounting area without overflowing.

[0113] Alternatively, the second adhesive barrier structure 14 can be provided in the following embodiments. For example, two first adhesive barrier structures 13 and two second adhesive barrier structures 14 can be used to enclose and form the installation area of ​​the battery unit assembly 20; or two first adhesive barrier structures 13, two second adhesive barrier structures 14, and a third enclosure wall 113 can be used to enclose and form the installation area of ​​the battery unit assembly 20; or two second adhesive barrier structures 14, one first adhesive barrier structure 13, and a second enclosure wall 112 can be used to enclose and form the installation area; or a first adhesive barrier structure 13, a second adhesive barrier structure 14, a second enclosure wall 112, and a third enclosure wall 113 can be used to enclose and form the installation area of ​​the battery unit assembly 20. All of the above methods can form an installation area for limiting the installation of the battery unit assembly 20 and preventing adhesive overflow.

[0114] In one embodiment, the battery device 100 is provided with two first adhesive barrier structures 13 arranged side by side along a first direction X, and the first mounting area 1141 is located between the two first adhesive barrier structures 13.

[0115] This configuration allows for better positioning of the battery unit assembly 20 in the first direction X using two first adhesive barrier structures 13; and it also creates mounting areas on both sides of the battery unit assembly 20 that are not easily contaminated by adhesive, thereby avoiding any impact on the low-voltage sampling module 30 or other devices mounted on both sides of the battery unit assembly 20.

[0116] Optionally, the mounting area on the side of one of the first adhesive barrier structures 13 facing away from the battery cell assembly 20 can be used as a second mounting area 1142 for mounting at least part of the low-voltage sampling module 30; the mounting area on the side of the other first adhesive barrier structure 13 facing away from the battery cell assembly 20 can be used to mount another part of the low-voltage sampling module 30 or to mount other devices of the battery device 100, such as for mounting the high-voltage circuit module 50.

[0117] Please refer to Figure 4 In one embodiment, the low-voltage sampling module 30 includes a first sampling module 301 and a second sampling module 302, which are located on both sides of the battery cell assembly 20 along the first direction X.

[0118] In this embodiment, the low-voltage sampling module 30 is divided into a first sampling module 301 and a second sampling module 302. Both the first sampling module 301 and the second sampling module 302 can be used to collect information such as voltage and temperature of the battery cell assembly 20. Alternatively, the first sampling module 301 and the second sampling module 302 can collect different parameter information of the battery cell assembly 20. For example, the first sampling module 301 can be configured to collect either temperature or voltage information of the battery cell assembly 20, and the second sampling module 302 can be configured to collect the other. Alternatively, the second sampling module 302 can be configured to collect both temperature and voltage information of the battery cell assembly 20. In some embodiments, the first sampling module 301 can be configured to collect both temperature and voltage information of the battery cell assembly 20, while the second sampling module 302 can be configured to perform at least one function, such as processing the collected signals and interacting with the battery management system.

[0119] In this design, the enclosure assembly 10 is physically separated by two first adhesive-blocking structures 13 to form two second mounting areas 1142 located on either side of the first mounting area 1141. The first sampling module 301 and the second sampling module 302 are respectively installed in the two second mounting areas 1142, making full use of the space of the enclosure assembly 10 in the first direction X. Both the first sampling module 301 and the second sampling module 302 have sufficient installation space, avoiding mutual interference during assembly and disassembly. At this time, the space on both side walls of the enclosure assembly 10 in the width direction can be used for the arrangement of low-voltage connection harnesses 40, maximizing the utilization of the internal space of the enclosure assembly 10. The two first adhesive-blocking structures 13 can prevent adhesive from flowing to the first sampling module 301 and the second sampling module 302, respectively.

[0120] In one embodiment, the height of the first adhesive barrier structure 13 is set to 15mm to 30mm.

[0121] In this embodiment, the height direction of the first adhesive-blocking structure 13 is perpendicular to the first housing wall. The height of the first adhesive-blocking structure 13 can be any value between 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm, and 15mm to 30mm. The first adhesive-blocking structure 13 is set to be no less than 15mm, which ensures that the first adhesive-blocking structure 13 plays a good role in blocking adhesive and allows for the injection of a relatively thick layer of structural adhesive in the mounting area of ​​the battery unit assembly 20, thereby ensuring the connection strength and stability of the battery unit assembly 20 bonded to the receiving cavity 114. The first adhesive barrier structure 13 is kept no higher than 30mm to avoid the first adhesive barrier structure 13 being too high and thus easily affecting the installation of the battery unit assembly 20 into the box. This also provides the installer with more operating space in the receiving cavity 114 to grab the battery unit assembly 20, thereby improving the convenience of disassembly and assembly of the battery unit assembly 20. It also avoids interference caused by the first adhesive barrier structure 13 when disassembling and assembling other components in the battery device 100.

[0122] In one embodiment, the length of the first adhesive barrier structure 13 along the second direction Y is not less than the length of the battery cell assembly 20 along the second direction Y.

[0123] In this embodiment, the length of the first adhesive-blocking structure 13 in the second direction Y can be the same as or greater than the length of the battery unit assembly 20. This arrangement ensures that the adhesive used to bond the battery unit assembly 20 is blocked by the first adhesive-blocking structure 13 and does not flow to the low-pressure sampling module 30. This allows the entire bottom surface area of ​​the battery unit assembly 20 in the second direction Y to be coated with adhesive for fixation to the first housing wall 111, which improves the connection strength and stability of the battery unit assembly 20 fixed in the receiving cavity 114.

[0124] In one embodiment, the battery cell assembly 20 is bonded and fixed to the first adhesive barrier structure 13.

[0125] In this embodiment, bonding the surface of the battery unit assembly 20 facing the first adhesive barrier structure 13 to the first adhesive barrier structure 13 can be achieved by applying a thick layer of structural adhesive to the first housing wall 111, so that when the battery unit assembly 20 is installed on the first housing wall 111, some of the structural adhesive is squeezed between the battery unit assembly 20 and the first adhesive barrier structure 13 to bond them together; alternatively, adhesive can be applied beforehand to at least one of the sides of the battery unit assembly 20 and the first adhesive barrier structure 13; no limitation is made here. With this arrangement, both the side of the battery unit assembly 20 facing the first adhesive barrier structure 13 and the surface facing the first housing wall 111 are bonded and fixed, which helps improve the stability of the battery unit assembly 20 installed in the housing assembly 10 and improves the overall structural stability of the battery device 100.

[0126] In one embodiment, the side wall of the housing assembly 10 is provided with an installation port 115 communicating with the receiving cavity 114, and the low-pressure sampling module 30 is detachably installed in the installation port 115.

[0127] In this embodiment, a mounting port 115 is provided on the side wall of the housing assembly 10, connecting the receiving cavity 114 and the external environment. The low-voltage sampling module 30 is installed at the mounting port 115 and detachably connected to the housing assembly 10. This configuration allows the low-voltage sampling module 30 to be directly installed and removed from the outside of the housing assembly 10. When maintenance is required, the low-voltage sampling module 30 can be removed from the mounting port 115 without opening the housing cover 12, improving the ease of maintenance. This configuration also facilitates maintenance of the low-voltage sampling module 30 in environments where opening the housing cover 12 is inconvenient. For example, when the battery device 100 is obstructed by other components, or when multiple battery devices 100 are stacked vertically to provide the required voltage and capacity in a rail transit system, allowing the low-voltage sampling module 30 to be installed and removed from the side of the housing assembly 10 eliminates the need to remove multiple battery devices 100 sequentially, further improving maintenance convenience.

[0128] Please refer to Figures 5 to 7 In one embodiment, the low-pressure sampling module 30 includes a connecting bracket 31 and a module body 32. The connecting bracket 31 is disposed on the mounting port 115 from the outside of the receiving cavity 114 and is detachably connected to the housing assembly 10. The module body 32 is disposed on the surface of the connecting bracket 31 facing the receiving cavity 114.

[0129] In this embodiment, the connecting bracket 31 can be mounted on the mounting port 115 from the outside of the housing assembly 10. The connecting bracket 31 can seal the mounting port 115, ensuring the airtightness of the housing assembly 10 and reducing the risk of foreign objects entering the receiving cavity 114. The connecting bracket 31 and the outer wall of the housing assembly 10 can also act as a limit, preventing the low-pressure sampling module 30 from excessively extending into the receiving cavity 114. Simultaneously, it also helps to increase the connection area between the low-pressure sampling module 30 and the housing assembly 10, thereby improving the connection strength.

[0130] Optionally, the connecting bracket 31 and the housing assembly 10 can be connected by at least one method, including but not limited to bolt connection and snap-fit; the module body 32 and the connecting bracket 31 can be connected and fixed by at least one method, including but not limited to adhesive connection, bolt connection and snap-fit.

[0131] Optionally, the module body 32 may include a housing and electronic components housed within the housing. The housing and the connecting bracket 31 enclose an installation space, where the electronic components are housed. Connection ports can be provided on the housing for electrical connection to the electronic components, facilitating the connection of external wiring harnesses. The housing and the connecting bracket 31 are detachably connected, for example, by bolts or clips, to facilitate separation of the housing and the connecting bracket 31 for inspection, maintenance, or replacement of the electronic components within the installation space.

[0132] Please refer to Figure 7 In one embodiment, the connecting bracket 31 includes a connecting portion 311 and a protrusion 312. The connecting portion 311 is arranged around the circumference of the mounting opening 115. The connecting portion 311 covers the outer wall of the housing assembly 10 and is detachably connected to the housing assembly 10. The protrusion 312 protrudes relative to the connecting portion 311 toward the receiving cavity 114. The module body 32 is disposed on the surface of the protrusion 312 toward the receiving cavity 114.

[0133] In this embodiment, with the connecting bracket 31 covering the mounting opening 115, the connecting portion 311 is positioned opposite to the outer wall of the housing assembly 10 and connected to the housing assembly 10. The protrusion 312 can be located in the mounting opening 115. The protrusion 312 cooperates with the side wall of the housing assembly 10 at the edge of the mounting opening 115 to form a protective structure. This can prevent the flame from spreading outward along the mounting opening 115 in the event of a fire inside the battery device 100, and can prevent the flame from directly contacting the external components of the receiving cavity 114. For example, it can prevent the flame from directly contacting the seal between the connecting portion 311 and the outer wall of the housing assembly 10, thereby reducing the risk of fire in the external components of the receiving cavity 114.

[0134] Please refer to Figure 7 In one embodiment, the sidewall where the protrusion 312 connects to the connecting portion 311 is inclined or bent in a direction away from the connecting portion 311.

[0135] In this configuration, the cross-sectional size of the protrusion 312 gradually decreases along the direction close to the receiving cavity 114, so that when the protrusion 312 is inserted into the mounting port 115 for installation, it will not interfere with the edge of the mounting port 115. It also allows the connecting part 311 to be installed close to the outer wall of the housing assembly 10, avoiding the problem of unstable installation due to installation gaps. In addition, it also ensures that the protrusion 312 and the side wall of the housing assembly 10 at the edge of the mounting port 115 can form a better protective structure, which plays a better role in fire prevention.

[0136] In one embodiment, the battery device 100 further includes a seal that surrounds the mounting opening 115 and is sandwiched between the outer wall of the housing assembly 10 and the connecting bracket 31.

[0137] This design improves the sealing of the housing assembly 10 and reduces the risk of foreign objects entering the receiving cavity 114.

[0138] Please refer to Figures 2 to 6 In one embodiment, the battery device 100 further includes a low-voltage connection harness 40, which extends along the side wall of the housing assembly 10 and is connected to the battery cell assembly 20 and the low-voltage sampling module 30, respectively.

[0139] In this embodiment, the low-voltage connection harness 40 can be used to connect the battery cell assembly 20 and the low-voltage sampling module 30 for signal and energy transmission, enabling the sampling signal to be transmitted to the low-voltage sampling module 30. The arrangement of the low-voltage connection harness 40 utilizes the space on the side wall of the housing assembly 10, maximizing the use of the internal space of the housing assembly 10.

[0140] Please refer to Figure 2 and Figure 3 In one embodiment, the low-voltage connection harness 40 includes a first harness 41, a second harness 42, and a third harness 43. The first harness 41 is fixed to the side wall of the housing assembly 10. The second harness 42 extends from the first branch point of the first harness 41 toward the battery unit assembly 20 and is electrically connected to the battery unit assembly 20. The third harness 43 extends from the second branch point of the first harness 41 toward the low-voltage sampling module 30 and is electrically connected to the low-voltage sampling module 30. The length of the third harness 43 is greater than the distance between the second branch point and the low-voltage sampling module 30.

[0141] In this embodiment, the first wire harness 41, the second wire harness 42, and the third wire harness 43 can be different structures on the same cable, with both ends of the first wire harness 41 connected to the second wire harness 42 and the third wire harness 43, respectively. In some embodiments, a protective sleeve or bundling structure can be used to cover or bundle multiple cables together to form the first wire harness 41, with one end of one cable detaching from the first branch point of the bundled first wire harness 41 and extending outward to form the second wire harness 42, and the other end of the cable detaching from the second branch point of the bundled first wire harness 41 and extending outward to form the third wire harness 43. The second wire harness 42 and the third wire harness 43 correspond to each other and are electrically connected to the battery unit assembly 20 and the low-voltage sampling module 30, respectively. When the battery unit assembly 20 and the low-voltage sampling wire harness are provided with multiple corresponding connection ports, multiple cables can extend outward from the first wire harness 41 to form the second wire harness 42 and the third wire harness 43, respectively, to connect to the multiple connection ports.

[0142] In this embodiment, the third wire harness 43, which branches from the first wire harness 41 and extends to the low-voltage sampling module 30 in the low-voltage connection harness 40, is made relatively long. That is, the distance between the third wire harness 43 and the low-voltage sampling module 30 is redundant compared to the distance between the first wire harness 41 and the low-voltage sampling module 30. At this time, when connecting the third wire harness 43 to the low-voltage sampling module 30, the third wire harness 43 can be freely bent within a certain range to adjust the position of the third wire harness 43 and the low-voltage sampling module 30. When disassembling and assembling the low-voltage sampling module 30, it will not be excessively constrained by the third wire harness 43 and has a certain range of motion, thereby improving the convenience of disassembling and assembling the low-voltage sampling module 30.

[0143] In some embodiments, the side wall of the housing assembly 10 is provided with a mounting port 115 for installing the low-voltage sampling module 30. The low-voltage sampling module 30 can be removed from the mounting port 115. In this case, the third wiring harness 43 is set to be relatively long so that the low-voltage sampling module 30 is not excessively constrained when it is installed or removed, and has a certain range of motion. The low-voltage sampling module 30 can also be pulled out when the third wiring harness 43 is connected, thereby facilitating the installation and removal of the low-voltage sampling module 30.

[0144] Optionally, the low-voltage connection harness 40 has multiple second harnesses 42, and the battery unit assembly 20 has multiple first connection ports. The multiple second harnesses 42 correspond one-to-one with the multiple first connection ports and are interconnected. In this configuration, the battery unit assembly 20 can have first connection ports at different sampling locations. By connecting the multiple second harnesses 42 to the multiple first connection ports one-to-one, signals can be acquired from different battery cells or different locations, or different types of signals can be acquired.

[0145] Optionally, the low-voltage sampling module 30 is provided with multiple second connection ports, and the low-voltage connection harness 40 is provided with multiple third harnesses 43, with each third harness 43 corresponding to and connected to one of the multiple second connection ports. With this configuration, the low-voltage sampling module 30 can receive different signals from the signal transmission channels formed by different second connection ports and third harnesses 43.

[0146] Please refer to Figure 2 and Figure 3 In one embodiment, the battery device 100 further includes a low-voltage connector 60, which is configured for electrical connection to an external device. A low-voltage connection harness 40 is electrically connected to the low-voltage connector 60. The battery device 100 typically has two corresponding low-voltage connectors 60, one as a low-voltage input connector and the other as a low-voltage output connector, corresponding to the positive and negative terminals of the low-voltage circuit. With this configuration, the battery device 100 can be electrically connected to an external device via the low-voltage connector 60 for transmitting low-voltage signals or for powering low-power devices.

[0147] In one embodiment, the low-voltage connection harness 40 is detachably connected to the low-voltage sampling module 30. This arrangement allows the low-voltage sampling module 30 to be completely removed from the housing assembly 10 without disassembling the low-voltage connection harness 40. Specifically, one of a male and a female connector can be provided on the low-voltage connection harness 40, and the other (such as the second connection port mentioned earlier) can be provided on the low-voltage sampling module 30. The male and female connectors are plugged into each other for electrical connection, thereby achieving a detachable connection between the low-voltage sampling module 30 and the low-voltage sampling harness. In some embodiments, connection terminals, such as conductive rings, can also be provided on the low-voltage sampling module 30. These connection terminals are secured to the low-voltage sampling module 30 using bolts or similar structures to achieve electrical connection between the connection terminals and the low-voltage sampling module 30.

[0148] Please refer to Figure 2 and Figure 5 In one embodiment, the battery device 100 further includes a high-voltage circuit module 50, which is disposed on the side wall of the housing assembly 10 and electrically connected to the battery cell assembly 20; the high-voltage circuit module 50 is provided with a high-voltage connector 51, which is configured to be electrically connected to an external device.

[0149] In one embodiment, the battery device 100 further includes a high-voltage circuit module 50, which is disposed on the side wall of the housing assembly 10 and electrically connected to the battery cell assembly 20; the high-voltage circuit module 50 is provided with a high-voltage connector 51, which is configured to be electrically connected to an external device.

[0150] In this embodiment, the battery device 100 is provided with a high-voltage connector 51 for electrical connection with external devices. Typically, two high-voltage connectors 51 are provided, one of which is a high-voltage input connector and the other is a high-voltage output connector, corresponding to the positive and negative terminals of the high-voltage circuit. With this configuration, the battery device 100 can be electrically connected to external devices through the high-voltage connectors 51 to transmit larger currents to meet the power supply needs of high-power devices; it can also be used to charge the battery cell assembly 20.

[0151] Optionally, the high-voltage circuit module 50 and the low-voltage sampling module 30 can be located on the same side of the battery cell assembly 20. In some embodiments, the high-voltage circuit module 50 and the low-voltage sampling module 30 can also be located on different sides of the battery cell assembly 20 to avoid the high-voltage circuit affecting the low-voltage sampling signal; for example, the low-voltage sampling module 30 can be located on at least one side of the battery cell assembly 20 along the width direction of the battery device 100, and the high-voltage circuit module 50 can be located on one side of the battery cell assembly 20 along the length direction of the battery device 100. Alternatively, the low-voltage sampling module 30 can be located on at least one side of the battery cell assembly 20 along the length direction of the battery device 100, and the high-voltage circuit module 50 can be located on one side of the battery cell assembly 20 along the width direction of the battery device 100. Or, the low-voltage sampling module 30 and the high-voltage sampling module can be located on opposite sides of the battery module along the width or length direction of the battery device 100, respectively.

[0152] In one embodiment, the high-voltage circuit module 50 is provided with a high-voltage interlock circuit, and the low-voltage sampling module 30 is electrically connected to the high-voltage interlock circuit.

[0153] In this embodiment, the high-voltage interlock circuit is a protection circuit used to detect the integrity or continuity of the high-voltage circuit. It detects the on / off state of the high-voltage circuit through a low-voltage signal, so that when an abnormal disconnection of the high-voltage circuit is detected, an alarm is triggered in time and the high-voltage power supply is cut off to avoid the risk of electric shock.

[0154] In one embodiment, the high-voltage circuit module 50 includes a maintenance switch circuit breaker.

[0155] In this embodiment, the Manual Service Disconnect (MSD) is a manually controllable switching device. By setting up the MSD, the high-voltage circuit can be physically disconnected manually, ensuring that the risk of electric shock during maintenance is avoided. Furthermore, the MSD can work in conjunction with a high-voltage interlock circuit. When the high-voltage circuit is disconnected via the MSD, the high-voltage interlock function is triggered, further cutting off the high-voltage circuit.

[0156] Please refer to Figure 4 and Figure 5In one embodiment, the battery device 100 further includes a second adhesive barrier structure 14, which is fixed to the first housing wall 111. The second adhesive barrier structure 14 is disposed on one side of the battery unit assembly 20 in the second direction Y and extends along the first direction X. The high-voltage circuit module 50 is disposed on the side of the second adhesive barrier structure 14 facing away from the battery unit assembly 20 in the second direction Y.

[0157] In this embodiment, a second adhesive-blocking structure 14 is provided in the battery phase, located on one side of the battery unit assembly 20 along the second direction Y. This arrangement prevents the adhesive from flowing into the high-voltage circuit module 50 during the process of injecting adhesive into the housing assembly 10 to bond and fix the battery unit assembly 20 to the receiving cavity 114, thus reducing the impact on the structure, performance, and disassembly / removal of the high-voltage circuit module 50. Furthermore, the second adhesive-blocking structure 14, along with the first adhesive-blocking structure 13, can limit and position the battery unit assembly 20 in different directions, ensuring accurate installation. Simultaneously, during the process of injecting adhesive into the receiving cavity 114 to bond the battery unit assembly 20, some structural adhesive can enter between the battery unit assembly 20 and the second adhesive-blocking structure 14, bonding the battery unit assembly 20 to the second adhesive-blocking structure 14 and improving the connection strength and stability of the battery unit assembly 20 fixed in the receiving cavity 14. In addition, the second baffle structure 14 can also serve as a reinforcing rib to improve the structural strength of the housing assembly 10 and reduce the risk of bending deformation of the first housing wall 111 of the housing assembly 10.

[0158] Please refer to Figure 5 and Figure 8 In one embodiment, the end of the second adhesive barrier structure 14 abuts against the side wall of the housing assembly 10. This arrangement allows the second adhesive barrier structure 14 to effectively strengthen the structure of the first housing wall 111, thereby improving the structural strength and stability of the housing assembly 10.

[0159] In one embodiment, the battery unit assembly 20 is configured as a battery module, and multiple battery cells of the battery unit assembly 20 are connected as an integral module by connectors.

[0160] In this embodiment, the connector can be a cable tie, a housing, or other connecting structure. By connecting and fixing multiple battery cells into a modular structure, the battery unit assembly 20 is configured as a battery module, which facilitates the management and disassembly of the battery unit assembly 20 and improves the overall structural stability.

[0161] Please refer to Figure 1This application also proposes an electrical device including a battery device 100 as described in any of the foregoing embodiments, the specific structure of which refers to the above embodiments. By using the battery device 100 in the electrical device described in the foregoing embodiments of this application, the structural adhesive used when bonding the battery cell assembly 20 can be avoided from contaminating the low-voltage sampling module 30 and affecting its performance and disassembly / removal.

[0162] Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, rail trains, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0163] Since the electrical device proposed in this application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0164] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A battery device, wherein, include: A housing assembly, wherein the housing assembly has a receiving cavity; A battery cell assembly is disposed within the receiving cavity; wherein the battery cell assembly is fixed to the first wall of the housing assembly by adhesive application. The first adhesive barrier structure is fixed to the first box wall. The first adhesive barrier structure is disposed on one side of the battery cell assembly in a first direction, and the first adhesive barrier structure extends along a second direction. The first direction and the second direction are arranged at an angle. A low-pressure sampling module is disposed within the receiving cavity, and the low-pressure sampling module is disposed on the side of the first adhesive barrier structure facing away from the battery cell assembly in the first direction. The low-pressure sampling module is electrically connected to the battery cell assembly to collect low-pressure data of the battery cell assembly.

2. The battery device of claim 1, wherein, The enclosure assembly includes a first enclosure wall, two second enclosure walls arranged opposite each other along the first direction, and two third enclosure walls arranged opposite each other along the second direction. The first adhesive-blocking structure is integrally formed with the first enclosure wall.

3. The battery device of claim 2, wherein, The first box wall and the second box wall are integrally formed.

4. The battery device as defined in any one of claims 1 to 3, wherein The battery device has two first adhesive-blocking structures arranged side by side along the first direction, and the battery cell assembly is located between the two first adhesive-blocking structures.

5. The battery device of claim 4, wherein, The low-voltage sampling module includes a first sampling module and a second sampling module, which are located on both sides of the battery cell assembly along the first direction.

6. The battery device according to any one of claims 1 to 3, wherein, The height of the first adhesive-blocking structure is set to be between 15mm and 30mm; And / or, the length of the first adhesive barrier structure along the second direction is not less than the length of the battery cell assembly along the second direction; And / or, the first adhesive barrier structure is bonded and fixed to the battery cell assembly.

7. The battery device according to any one of claims 1 to 3, wherein, The side wall of the housing assembly is provided with an installation port that communicates with the receiving cavity, and the low-pressure sampling module is detachably installed in the installation port.

8. The battery device of claim 7, wherein, The low-voltage sampling module includes: A connecting bracket, which covers the mounting opening from the outside of the receiving cavity and is detachably connected to the housing assembly; and The module body is disposed on the surface of the connecting bracket facing the receiving cavity.

9. The battery device as claimed in claim 8, wherein, The connecting bracket includes: A connecting part is arranged around the circumference of the mounting port, the connecting part covers the outer wall of the housing assembly, and is detachably connected to the housing assembly; A protrusion is provided that protrudes toward the receiving cavity relative to the connecting portion, and the module body is provided on the surface of the protrusion toward the receiving cavity.

10. The battery device as claimed in claim 9, wherein, The sidewall where the protrusion connects to the connecting part is inclined or bent away from the connecting part.

11. The battery device according to any one of claims 1 to 3, wherein, The battery device also includes a low-voltage connection harness, which extends along the side wall of the housing assembly and is connected to the battery cell assembly and the low-voltage sampling module, respectively.

12. The battery device of claim 11, wherein, The battery device also includes a low-voltage connector, which is configured for electrical connection to an external device, and the low-voltage connection harness is electrically connected to the low-voltage connector. And / or, the low-voltage connection harness is detachably connected to the low-voltage sampling module; And / or, the low-voltage connection harness includes a first harness, a second harness and a third harness, the first harness being fixed to the side wall of the housing assembly, the second harness extending from the first branch point of the first harness toward the battery cell assembly and being electrically connected to the battery cell assembly; The third wiring harness extends from the second branch point of the first wiring harness toward the low-voltage sampling module and is electrically connected to the low-voltage sampling module. The length of the third wiring harness is greater than the distance between the second branch point and the low-voltage sampling module.

13. The battery device according to any one of claims 1 to 3, wherein, The battery device also includes a high-voltage circuit module, which is located on the side wall of the housing assembly and electrically connected to the battery cell assembly. The high-voltage circuit module is equipped with a high-voltage connector, which is configured for electrical connection with external equipment.

14. The battery device of claim 13, wherein, The high-voltage circuit module is equipped with a high-voltage interlock circuit, and the low-voltage sampling module is electrically connected to the high-voltage interlock circuit. And / or, the high-voltage circuit module includes a maintenance switch circuit breaker.

15. The battery device of claim 13, wherein, The battery device further includes a second adhesive barrier structure, which is fixed to the first housing wall. The second adhesive barrier structure is disposed on one side of the battery cell assembly in the second direction and extends along the first direction, and the high-voltage circuit module is disposed on the side of the second adhesive barrier structure opposite to the battery cell assembly in the second direction.

16. The battery device of claim 15, wherein, The end of the second adhesive barrier structure abuts against the side wall of the housing assembly.

17. The battery device according to any one of claims 1 to 3, wherein, The battery unit assembly is configured as a battery module, and multiple battery cells of the battery unit assembly are connected as an integral module through connectors.

18. An electrical appliance, wherein, Includes the battery device as described in any one of claims 1 to 17.

Images