Aviation battery management unit housing structure

Abstract

This application relates to a housing structure for an aviation battery management unit, including a first housing and a second housing. The first housing includes a first component plate, a first frame, a snap-fit ​​protrusion, and a limiting member. The second housing includes a second component plate, a second frame, and a snap-fit ​​plate. The second frame and the peripheral wall of the positioning groove form a positioning opening for placing the circuit board interface, eliminating the need for tilting the circuit board during installation. The first and second housings are positioned by abutting against the ends of the second frame and the first frame and the inner wall of the limiting member, and are fixed by the engagement of the snap-fit ​​plate and the snap-fit ​​protrusion, without requiring the second housing to be completely embedded into the first housing. Therefore, the assembly and disassembly process is convenient and quick, preventing the reinforcing ribs and other structures on the housing from scratching the circuit board, effectively preventing damage to the components on the circuit board, and improving safety during use.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a housing structure for an aviation battery management unit. Background Technology

[0002] The housing structure of the battery management unit can be wrapped around the outside of the circuit board 30 to protect the circuit board 30.

[0003] In conventional technologies, such as Figure 1 and Figure 2 As shown, the housing structure of the battery management unit includes an upper housing 10 and a lower housing 20. The upper housing 10 is provided with a positioning hole 11 for the interface 31 of the circuit board 30. The inner wall of the upper housing 10 and the outer wall of the lower housing 20 are provided with a snap-fit ​​structure. During assembly, the circuit board 30 needs to be tilted and placed into the upper housing 10 first, so that the interface 31 of the circuit board 30 is inserted into the positioning hole 11. After the circuit board 30 is aligned, the lower housing 20 is then embedded into the upper housing 10 and snap-fitted for fixation.

[0004] The battery management unit with this type of housing structure is difficult to disassemble and assemble, which can easily damage the components on the circuit board 30 and compromise safety. This is especially true in the aerospace field, where damage to the circuit board 30 in the battery management unit can lead to serious consequences. Utility Model Content

[0005] Therefore, it is necessary to provide an aviation battery management unit housing structure to address the problem that the circuit board is easily damaged during installation of the housing structure of the battery management unit in conventional technology.

[0006] This application provides an aviation battery management unit housing structure, including a first housing and a second housing; the first housing includes a first constituent plate, a first frame, a snap-fit ​​protrusion, and a limiting member, the first frame is fixedly connected to the first constituent plate, the first frame has a positioning groove located at the end of the first frame and a first hidden groove located on the outside of the first frame, the snap-fit ​​protrusion is located in the first hidden groove and is fixedly connected to the first frame, and the limiting member is fixedly disposed on the outside of the first frame; the second housing includes a second constituent plate, a second frame, and a snap-fit ​​plate, the second frame is fixedly connected to the second constituent plate, the second frame abuts against the end of the first frame and the inner wall of the limiting member respectively, the second frame and the peripheral wall of the positioning groove form a positioning opening for placing a circuit board interface, the snap-fit ​​plate is fixedly connected to the second constituent plate and / or the second frame, and the snap-fit ​​plate is provided with a snap-fit ​​hole that engages with the snap-fit ​​protrusion.

[0007] According to one embodiment of this application, a clearance groove is formed at the corner of the first frame, and the first housing further includes: a mounting bracket, which is fixedly connected to the first frame and surrounds the outside of the second housing, the mounting bracket having a first through hole communicating with the clearance groove; and a buffer pad, which is fixedly connected to the mounting bracket, the buffer pad having a second through hole communicating with the first through hole, one end of the buffer pad protruding from the end of the mounting bracket away from the clearance groove.

[0008] According to one embodiment of this application, the mounting bracket includes: a first component fixedly connected to the first frame, the first component having a first through hole, and one end of the first component facing away from the clearance groove abutting against the buffer pad; and a second component fixedly connected to the first component, the second component, the first component, and the second frame forming a mounting groove for mounting the buffer pad.

[0009] According to one embodiment of this application, a mounting post is provided on one side of the first constituent plate that is in the same direction as the first frame. The first housing further includes a metal insert, which is fixedly disposed on the mounting post. The metal insert has an internal threaded hole, and the metal insert is fixedly connected to the circuit board through a threaded part located in the internal threaded hole.

[0010] According to one embodiment of this application, the metal insert extends from one end away from the first constituent plate to the outside of the mounting post.

[0011] According to one embodiment of this application, the thickness of the snap-fit ​​plate near the end of the second constituent plate is greater than the thickness away from the end of the second frame.

[0012] According to one embodiment of this application, the end of the snap-fit ​​plate opposite to the second constituent plate is provided with a guide radius.

[0013] According to one embodiment of this application, the width of the snap-fit ​​hole gradually increases from one end near the second constituent plate to one end away from the second constituent plate.

[0014] According to one embodiment of this application, a second hidden groove is provided on the outer side of the second frame, and the limiting member is located in the second hidden groove.

[0015] According to one embodiment of this application, the first constituent plate is provided with honeycomb-shaped reinforcing ribs on the side near the first frame; and / or, the second constituent plate is provided with honeycomb-shaped reinforcing ribs on the side near the second frame.

[0016] The aforementioned aviation battery management unit housing structure features a second frame that, together with the periphery of the positioning groove, forms a positioning opening for the circuit board interface, eliminating the need for tilting the circuit board during installation. The first and second housings are positioned by abutting against the ends of the second frame and the inner walls of the limiting members, and are secured by the engagement of a snap-fit ​​plate and snap-fit ​​protrusion, without requiring the second housing to be completely embedded within the first housing. Therefore, the assembly and disassembly process is convenient and quick, preventing reinforcing ribs and other structures on the housing from scratching the circuit board, effectively preventing damage to components on the circuit board, and improving operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the housing structure of a battery management unit in the background art.

[0018] Figure 2 This is a schematic diagram of the circuit board mounting process in the background art.

[0019] Figure 3 This is a perspective view of the housing structure of an aviation battery management unit according to an embodiment of this application.

[0020] Figure 4 This is a schematic diagram of the structure of the first housing in an embodiment of the aviation battery management unit housing structure of this application.

[0021] Figure 5 This is a schematic diagram of the structure of the second housing in an embodiment of the aviation battery management unit housing structure of this application.

[0022] Figure 6 This is a schematic diagram of the snap-fit ​​plate in the housing structure of an aviation battery management unit according to an embodiment of this application.

[0023] Figure 7 This is a schematic diagram of the buffer pad mounting structure in the housing structure of an aviation battery management unit according to an embodiment of this application.

[0024] Figure 8 for Figure 4 Enlarged view of point A in the image.

[0025] Figure 9 This is another perspective view of the upper housing in the housing structure of an aviation battery management unit according to an embodiment of this application.

[0026] Figure 10 for Figure 9 Enlarged view of point B in the image.

[0027] Figure label:

[0028] 10. Upper housing; 11. Positioning hole; 20. Lower housing; 30. Circuit board; 31. Interface;

[0029] 100. First housing; 110. First structural plate; 111. Mounting post; 112. Reinforcing rib; 120. First frame; 121. Positioning groove; 122. First concealed groove; 123. Clearance groove; 130. Snap-fit ​​protrusion; 140. Limiting member; 150. Mounting bracket; 151. First structural part; 152. Second structural part; 153. First through hole; 160. Buffer pad; 161. Second through hole; 170. Metal insert;

[0030] 200, Second housing; 210, Second structural plate; 220, Second frame; 221, Second hidden groove; 230, Snap-fit ​​plate; 231, Snap-fit ​​hole; 232, Guide fillet. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] Combination Figures 3 to 5 An embodiment of this application provides an aviation battery management unit housing structure, including a first housing 100 and a second housing 200 that are disposed opposite to each other and fixedly connected.

[0038] The first housing 100 includes a first constituent plate 110, a first frame 120, a snap-fit ​​protrusion 130, and a limiting member 140. The first frame 120 is fixedly connected to the first constituent plate 110. The first frame 120 has a positioning groove 121 located at the end of the first frame 120 and a first hidden groove 122 located on the outside of the first frame 120. The snap-fit ​​protrusion 130 is located in the first hidden groove 122 and is fixedly connected to the first frame 120. The limiting member 140 is fixedly disposed on the outside of the first frame 120.

[0039] The second housing 200 includes a second constituent plate 210, a second frame 220, and a snap-fit ​​plate 230. The second constituent plate 210 is disposed opposite to the first constituent plate 110. For example, the first constituent plate 110 and the second constituent plate 210 are parallel to each other and form a spaced straight plate or approximately straight plate structure. The second frame 220 is fixedly connected to the second constituent plate 210. The second frame 220 abuts against the end of the first frame 120 and the inner wall of the limiting member 140, thereby defining the minimum distance between the first constituent plate 110 and the second constituent plate 210 and their relative positions in the direction parallel to the first constituent plate 110 and the second constituent plate 210.

[0040] The second frame 220 and the peripheral wall of the positioning groove 121 form a positioning port for placing the interface 31 of the circuit board 30. When the circuit board 30 is assembled in the housing structure of the aviation battery management unit, the interface 31 of the circuit board 30 is located in the positioning port and is limited by the first frame 120 and the second frame 220.

[0041] The snap-fit ​​plate 230 is fixedly connected to at least one of the second constituent plate 210 and the second frame 220. The snap-fit ​​plate 230 is provided with a snap-fit ​​hole 231 that engages with the snap-fit ​​protrusion 130. The snap-fit ​​protrusion 130 is snapped and fixed to the snap-fit ​​plate 230 through the snap-fit ​​hole 231, thereby achieving a tight connection between the first housing 100 and the second housing 200 and preventing the first housing 100 and the second housing 200 from detaching from each other.

[0042] During assembly, the circuit board 30 can be mounted parallel to the first constituent plate 110 of the first housing 100 or the second constituent plate 210 of the second housing 200. Then, the first housing 100 and the second housing 200 are fastened together. The positioning of the second housing 200 and the first housing 100 is achieved by the abutment of the second frame 220 with the end of the first frame 120 and the inner wall of the limiting member 140. Then, the fastening is completed by the fastening hole 231 of the fastening plate 230 engaging with the fastening protrusion 130 in the first hidden groove 122. During this process, it is not necessary to completely embed the second housing 200 into the first housing 100.

[0043] Since the circuit board 30 does not need to be tilted during the assembly process, the first housing 100 and the second housing 200 will not rub against the electronic components on the circuit board 30, thus avoiding damage to the components caused by rubbing. At the same time, the snap-fit ​​method makes the disassembly and assembly process unnecessary, improving assembly efficiency and safety.

[0044] When the snap-fit ​​plate 230 engages with the snap-fit ​​protrusion 130, the snap-fit ​​plate 230 is located within the first hidden groove 122, which can prevent the snap-fit ​​plate 230 from protruding from the first frame 120. Furthermore, the setting of the first hidden groove 122 can make the assembly process of the first housing 100 and the second housing 200 smoother and more accurate, which is conducive to further improving assembly efficiency and assembly accuracy.

[0045] Optionally, the aviation battery management unit housing structure is an approximately rectangular box structure with four opposing sidewalls. Correspondingly, both the first housing 100 and the second housing 200 have four sidewalls. Each sidewall of the first housing 100 has at least one snap-fit ​​protrusion 130, and at least two opposing sidewalls of the first housing 100 have the aforementioned limiting members 140. Each sidewall of the second housing 200 has at least one snap-fit ​​plate 230 corresponding to the snap-fit ​​protrusion 130 on the same side as the first housing 100. This makes the fit between the first housing 100 and the second housing 200 more stable, effectively improving the robustness of the aviation battery management unit housing structure.

[0046] Optionally, the first component plate 110, the first frame 120, the snap-fit ​​protrusion 130, and the limiting member 140 are integrally formed, and / or the second component plate 210, the second frame 220, and the snap-fit ​​plate 230 are integrally formed. This effectively enhances the structural strength of the first housing 100 and / or the second housing 200, and reduces the manufacturing difficulty and cost of the aviation battery management unit housing structure.

[0047] In some embodiments, the thickness of the snap-fit ​​plate 230 at the end near the second constituent plate 210 is greater than the thickness at the end away from the second constituent plate 210. For example, the thickness of the snap-fit ​​plate 230 gradually decreases from the end near the second constituent plate 210 to the end away from the second constituent plate 210, or the snap-fit ​​plate 230 forms a stepped thickness from the end near the second constituent plate 210 to the end away from the second constituent plate 210. On the one hand, the smaller thickness at the end of the snap-fit ​​plate 230 away from the second constituent plate 210 makes it easier to undergo elastic deformation, which makes it easier for the snap-fit ​​protrusion 130 to snap into the snap-fit ​​hole 231 of the snap-fit ​​plate 230; on the other hand, the larger thickness at the end of the snap-fit ​​plate 230 near the second constituent plate 210 gives the position where the snap-fit ​​plate 230 connects to the second constituent plate 210 and / or the second frame 220 better structural strength, making it less prone to breakage, which helps to ensure the yield rate of the assembly process and improves the structural stability of the aviation battery management unit housing structure.

[0048] Combination Figure 6 In some embodiments, the end of the snap-fit ​​plate 230 facing away from the second constituent plate 210 is provided with a guide radius 232. The guide radius 232 is located on the inner side of the snap-fit ​​plate 230, that is, on the side of the snap-fit ​​plate 230 closer to the center of the second housing 200. The guide radius 232 reduces the resistance during the assembly process of the snap-fit ​​plate 230 and the snap-fit ​​protrusion 130, allowing the snap-fit ​​plate 230 to engage with the snap-fit ​​protrusion 130 more smoothly, avoiding damage to the snap-fit ​​structure caused by improper alignment, thereby improving the assembly quality.

[0049] In some embodiments, the width of the snap-fit ​​hole 231 gradually increases from one end near the second constituent plate 210 to the end away from the second constituent plate 210. This makes the snap-fit ​​hole 231 triangular or approximately triangular in shape, with a larger front end (i.e., the upper end in the figures) making it easier for the snap-fit ​​protrusion 130 to enter the snap-fit ​​hole 231, and a smaller rear end (i.e., the lower end in the figures) providing better fixation after the snap-fit ​​protrusion 130 is inserted into the snap-fit ​​hole 231, thereby improving assembly efficiency and reliability.

[0050] In some embodiments, a second hidden groove 221 is provided on the outer side of the second frame 220, and the limiting member 140 is located within the second hidden groove 221. This prevents the limiting member 140 from being exposed, avoiding damage from collisions with external objects during use; furthermore, this concealment method makes the appearance of the housing cleaner, reduces interference from the external environment on the limiting member 140, and improves the long-term reliability of the limiting member 140; in addition, the cooperation between the inner wall of the second hidden groove 221 and the limiting member 140 can increase the accuracy and stability of the assembly of the first housing 100 and the second housing 200.

[0051] In some embodiments, the first constituent plate 110 is provided with honeycomb-shaped reinforcing ribs 112 on the side near the second constituent plate 210; and / or, the second constituent plate 210 is provided with honeycomb-shaped reinforcing ribs 112 on the side near the second frame 220. Preferably, both the first constituent plate 110 and the second constituent plate 210 are provided with honeycomb-shaped reinforcing ribs 112 on the side near the second constituent plate 210 and the side near the second frame 220.

[0052] The honeycomb-shaped reinforcing ribs 112 improve the rigidity of the first constituent plate 110 and the second constituent plate 210 by dispersing stress. This allows the stress to be evenly distributed across the entire reinforcing rib 112 structure when the aviation battery management unit housing structure is subjected to external impact, reducing local stress concentration and thus improving the impact resistance of the housing and protecting the internal circuit board 30 from damage.

[0053] Combination Figure 7 and Figure 8 In some embodiments, clearance grooves 123 are formed at the corners of the first frame 120. For example, the four corners of the first frame 120 have an inwardly concave arc-shaped structure to form arc-shaped clearance grooves 123 at the corners of the first frame 120. Optionally, to accommodate the structure of the first frame 120, the corners of the second frame 220 have an inwardly concave arc-shaped structure.

[0054] The first housing 100 also includes a mounting bracket 150, which is fixedly connected to the first frame 120. The mounting bracket 150 surrounds the outer side of the second housing 200, further enhancing the overall structural strength of the housing, effectively resisting external impacts, and protecting the internal circuit board 30 from damage.

[0055] The mounting bracket 150 is provided with a first through hole 153, which is connected to the clearance groove 123.

[0056] The first housing 100 also includes a cushioning pad 160, which may be made of a highly elastic material, such as rubber or silicone, to ensure good cushioning performance.

[0057] The cushioning pad 160 is fixedly connected to the mounting bracket 150. Optionally, the cushioning pad 160 is bonded to the mounting bracket 150 to increase the stability of the installation of the cushioning pad 160.

[0058] One end of the cushioning pad 160 protrudes from the end of the mounting bracket 150 away from the clearance groove 123. For example, when the first frame 120 is facing downward, the clearance groove 123 is above the mounting bracket 150, and the lower end of the cushioning pad 160 protrudes from the lower end of the mounting bracket 150.

[0059] The buffer pad 160 has a second through hole 161 that communicates with the first through hole 153. Fasteners can be inserted into both the first through hole 153 and the second through hole 161 to achieve the installation and fixation of the aviation battery management unit housing structure.

[0060] Taking bolts as an example, when installing the aviation battery management unit housing structure onto a support structure (such as a mounting base), the fasteners can be simultaneously inserted into the support structure, the first through hole 153, and the second through hole 161, and locked in place with nuts. At this time, the buffer pad 160 is located between the mounting bracket 150 and the support structure. When the aviation battery management unit housing structure is subjected to external impact, the buffer pad 160 can absorb and disperse the impact force, protecting the internal circuit board 30 from damage. Furthermore, it can absorb vibration, reducing the transmission of vibration to the aviation battery management unit housing structure, thereby protecting the internal circuit board 30.

[0061] Optionally, the mounting bracket 150 is integrally formed into the first frame 120. Since there is no connection gap between the mounting bracket 150 and the first frame 120, there are no structural weaknesses caused by loose or failed connections. This integrally formed structure can better resist external impacts and vibrations, reducing the risk of housing deformation or damage due to impacts or vibrations. At the same time, the integral forming process simplifies the manufacturing process, reduces assembly steps and the number of parts, thereby reducing manufacturing costs and assembly difficulty. Furthermore, the integrally formed structure helps improve the sealing performance of the housing, preventing dust, moisture, and other external substances from entering the housing and protecting the internal circuit board 30 from damage.

[0062] In some embodiments, the mounting bracket 150 includes a first component 151 and a second component 152.

[0063] The first component 151 is fixedly connected to the first frame 120. For example, the first component 151 and the first frame 120 are integrally formed or bonded together. The first component 151 is provided with a first through hole 153. One end of the first component 151 away from the relief groove 123 abuts against the buffer pad 160 and can cooperate with the buffer pad 160 to form support.

[0064] The second component 152 is adapted to the side of the buffer pad 160 away from the second frame 220. The second component 152 is fixedly connected to the end of the first component 151 away from the relief groove 123 by means of integral molding or bonding. The second component 152, the first component 151 and the second frame 220 form a mounting groove for mounting the buffer pad 160, and one end of the buffer pad 160 is located in the mounting groove.

[0065] The mounting groove structure prevents the buffer pad 160 from shifting during vibration, thus ensuring the stability of the buffering effect. Due to the cooperation between the buffer pad 160 and the first component 151, the second component 152, and the second frame 220, the buffer pad 160 can evenly absorb and disperse the impact force from the outside, avoiding the impact force from being concentrated on the electronic components on the circuit board 30, thereby reducing the risk of damage to the electronic components in a vibration environment.

[0066] Combination Figure 9 and Figure 10 In some embodiments, a mounting post 111 is provided on the side of the first constituent plate 110 that is in the same direction as the first frame 120. Optionally, the mounting post 111 is integrally formed with the first constituent plate 110. The first housing 100 also includes a metal insert 170, which is fixedly disposed on the mounting post 111. The metal insert 170 has an internal threaded hole and is fixedly connected to the circuit board 30 through a threaded part located in the internal threaded hole.

[0067] The internal threaded hole of the metal insert 170 can mate with a threaded component to fix the circuit board 30. For example, the threaded component is a screw, which passes through a hole in the circuit board 30 and mates with the internal threaded hole of the metal insert 170 to fix the circuit board 30 to the metal insert 170.

[0068] The metal insert 170 prevents the threaded parts from directly contacting the plastic part of the housing, disperses the installation stress, prevents cracking caused by vibration and other reasons during long-term use, and enhances the firmness of the circuit board 30 installation.

[0069] Optionally, the metal insert 170 can be a tubular structure, fixed within the mounting post 111 by an interference fit. Furthermore, the metal insert 170 and the mounting post 111 are splined together. This makes the installation of the circuit board 30 more stable and less prone to loosening, thereby further improving the stability and safety of the housing structure.

[0070] In some embodiments, one end of the metal insert 170 facing away from the first constituent plate 110 extends beyond the mounting post 111. Optionally, the end of the metal insert 170 facing away from the first constituent plate 110 protrudes from the mounting post 111 by 0.2 mm to 0.5 mm, for example, the end of the metal insert 170 facing away from the first constituent plate 110 protrudes from the mounting post 111 by 0.2 mm, 0.3 mm, 0.4 mm, or 0.5 mm.

[0071] The metal insert 170 extends from one end away from the first component plate 110 to the outside of the mounting post 111, which can prevent the plastic overflow of the mounting post 111 when the metal insert 170 is embedded in the mounting post 111, which would cause the metal insert 170 to be covered by the plastic overflow of the mounting post 111. The threaded part and the plastic part are locked together, and the threaded part will loosen due to unwinding during long-term use.

[0072] For ease of understanding, the assembly and fixing process of the aviation battery management unit housing structure in this embodiment is described below as an example:

[0073] The first housing 100 is placed horizontally with its first frame 120 facing upwards. The circuit board 30 is then placed flat on top of the first housing 100, with its interface 31 positioned within the positioning groove 121. The circuit board 30 is locked in place by the engagement of the threaded component and the metal insert 170. The second housing 200 is then moved above the first housing 100, with its second frame 220 and snap-fit ​​plate 230 facing downwards and aligned with the corresponding first hidden groove 122. The second housing 200 is moved downwards until the second frame 220 abuts against the end of the first frame 120 and the inner wall of the limiting member 140. The snap-fit ​​protrusion 130 engages with the snap-fit ​​hole 231 of the snap-fit ​​plate 230, completing the assembly process of the aviation battery management unit housing structure.

[0074] The assembled aviation battery management unit housing structure is placed horizontally on the support structure, so that the buffer is in contact with the support structure, the first through hole 153 and the second through hole 161 are aligned with the holes in the support structure, and then the fasteners are inserted into the first through hole 153, the second through hole 161 and the holes in the support structure. The nut is placed in the clearance groove 123 and connected and locked with the fastener to fix the aviation battery management unit housing structure.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A housing structure for an aviation battery management unit, characterized in that, Includes a first housing and a second housing; The first housing includes a first structural plate, a first frame, a snap-fit ​​protrusion, and a limiting member. The first frame is fixedly connected to the first structural plate. The first frame has a positioning groove at the end of the first frame and a first hidden groove on the outside of the first frame. The snap-fit ​​protrusion is located in the first hidden groove and is fixedly connected to the first frame. The limiting member is fixedly disposed on the outside of the first frame. The second housing includes a second constituent plate, a second frame, and a snap-fit ​​plate. The second frame is fixedly connected to the second constituent plate. The second frame abuts against the end of the first frame and the inner wall of the limiting member, respectively. The second frame and the peripheral wall of the positioning groove form a positioning opening for placing the circuit board interface. The snap-fit ​​plate is fixedly connected to the second constituent plate and / or the second frame. The snap-fit ​​plate is provided with snap-fit ​​holes that engage with the snap-fit ​​protrusions.

2. The aviation battery management unit housing structure according to claim 1, characterized in that, The corners of the first frame are formed with clearance grooves, and the first housing further includes: Mounting bracket, which is fixedly connected to the first frame and surrounds the outside of the second housing, and the mounting bracket is provided with a first through hole communicating with the clearance groove; A buffer pad is fixedly connected to the mounting bracket. The buffer pad has a second through hole communicating with the first through hole. One end of the buffer pad protrudes from the end of the mounting bracket away from the clearance groove.

3. The aviation battery management unit housing structure according to claim 2, characterized in that, The mounting bracket includes: A first component is fixedly connected to the first frame. The first component is provided with the first through hole. The end of the first component facing away from the relief groove abuts against the buffer pad. The second component is fixedly connected to the first component, and the second component, together with the first component and the second frame, forms a mounting groove for mounting the buffer pad.

4. The aviation battery management unit housing structure according to claim 1, characterized in that, A mounting post is provided on one side of the first structural plate that is in the same direction as the first frame, and the first housing further includes: A metal insert is fixedly disposed on the mounting post. The metal insert has an internal threaded hole and is fixedly connected to the circuit board through a threaded component located in the internal threaded hole.

5. The aviation battery management unit housing structure according to claim 4, characterized in that, The metal insert extends from one end away from the first constituent plate to the outside of the mounting post.

6. The aviation battery management unit housing structure according to any one of claims 1 to 5, characterized in that, The thickness of the snap-fit ​​plate at the end near the second constituent plate is greater than the thickness at the end away from the second frame.

7. The aviation battery management unit housing structure according to any one of claims 1 to 5, characterized in that, The end of the snap-fit ​​plate opposite to the second constituent plate is provided with a guide rounded corner.

8. The aviation battery management unit housing structure according to any one of claims 1 to 5, characterized in that, The width of the snap-fit ​​hole gradually increases from the end closest to the second constituent plate to the end furthest from the second constituent plate.

9. The aviation battery management unit housing structure according to any one of claims 1 to 5, characterized in that, A second hidden groove is provided on the outer side of the second frame, and the limiting member is located in the second hidden groove.

10. The aviation battery management unit housing structure according to any one of claims 1 to 5, characterized in that, The first constituent plate has honeycomb-shaped reinforcing ribs on the side near the first frame; and / or, The second component plate has honeycomb-shaped reinforcing ribs on the side near the second frame.

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