Battery pack upper cover assembly, battery pack box body, battery pack and electric equipment

Abstract

The utility model provides a battery pack upper cover assembly, a battery pack box body, a battery pack and electric equipment, the battery pack upper cover assembly comprises an upper cover, a separator is arranged in the upper cover, and the separator divides the inner cavity of the upper cover into a first area for installing a control panel and a second area for installing an interface board; the first area is provided with a first conductive terminal, and the second area is provided with a second conductive terminal; the separator is a metal piece integrally formed with the upper cover, and insulating layers are arranged at the positions, at least corresponding to the first conductive terminals and at least corresponding to the second conductive terminals, of the separator, so that the safety of the battery pack is improved, and the structural strength of the battery pack upper cover assembly and the battery pack box body is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a battery pack cover assembly, a battery pack housing, a battery pack, and electrical equipment. Background Technology

[0002] Battery packs have been widely used in electric vehicles, electric bicycles, drones and other electric equipment.

[0003] The battery pack specifically includes a housing and a battery module. The housing includes a lower shell and a top cover. The battery module is located inside the lower shell, and the top cover is placed on the lower shell. The top cover contains a control board and an interface board for connecting to external devices. The battery module is connected to the control board, which monitors and manages the battery module. However, the safety of the battery packs in this technology does not meet the requirements. Utility Model Content

[0004] In view of this, the present invention aims to provide a battery pack cover assembly, a battery pack housing, a battery pack, and electrical equipment, so as to improve the safety of the battery pack to a certain extent.

[0005] In a first aspect, this utility model provides a battery pack cover assembly, including a cover;

[0006] An isolating element is provided inside the upper cover, which divides the inner cavity of the upper cover into a first area for installing a control board and a second area for installing an interface board; the first area is provided with a first conductive terminal, and the second area is provided with a second conductive terminal;

[0007] The isolating component is a metal part integrally formed with the upper cover, and the isolating component is provided with an insulating layer at least at the position corresponding to the first conductive terminal and at least at the position corresponding to the second conductive terminal.

[0008] Optionally, the insulating layer is an insulating adhesive coated on the surface of the insulating member;

[0009] And / or, the insulating layer covers the entire surface of the insulating member.

[0010] Optionally, a first support portion is provided on the side of the isolation member facing the first area, and at least a portion of the edge of the control plate on the side near the isolation member overlaps the first support portion.

[0011] Optionally, the first support portion is a first step disposed on the side of the isolation member facing the first area;

[0012] And / or, the first support portion is integrally formed with the isolation member.

[0013] Optionally, a second support portion is provided on the side of the isolator facing the second region, and at least a portion of the edge of the interface plate on the side near the isolator overlaps the second support portion.

[0014] Optionally, the second support portion is a second step disposed on the side of the isolation member facing the second area;

[0015] And / or, the second support portion is integrally formed with the isolation member.

[0016] Optionally, along the length of the isolator, the isolator includes a central isolating section and two end isolating sections, with the two end isolating sections respectively connected to both ends of the central isolating section along its length.

[0017] The end of the end isolation section that is furthest from the middle isolation section is connected to the top cover.

[0018] Optionally, the height of the end isolation section is greater than the height of the middle isolation section.

[0019] Optionally, the height of the end isolation section gradually increases in the direction from the middle isolation section to the end isolation section.

[0020] Optionally, the end isolation section includes two opposing sidewalls and an end wall connected between the two sidewalls, one of the sidewalls facing the first area and the other sidewall facing the second area, and the end of the sidewall away from the middle isolation section is connected to the top cover.

[0021] The height of the sidewall gradually increases along the direction from the middle isolation section to the end isolation section.

[0022] Optionally, the thickness of the end isolation section is greater than the thickness of the middle isolation section.

[0023] Optionally, the thickness of the end isolation section gradually increases in the direction from the middle isolation section to the end isolation section.

[0024] Optionally, the end isolation section includes two opposing sidewalls and an end wall connecting the two sidewalls;

[0025] One of the sidewall surfaces faces the first area, and the other sidewall surface faces the second area, with one end of the sidewall surface away from the central isolation section connected to the top cover;

[0026] In the direction from the middle isolation section to the end isolation section, at least one of the sidewall surfaces bends and extends away from the other sidewall surface.

[0027] Optionally, the sidewall of the end isolation section facing the first region is an arc-shaped surface;

[0028] And / or, the sidewall surface of the end isolation section facing the second region is an arc-shaped surface;

[0029] And / or, the end wall surface is an arc-shaped surface.

[0030] Optionally, the top cover includes a first main body and a second main body. The second main body protrudes from the middle of the first main body in a direction away from the first main body. The two sides of the second main body form corners at the joints with the first main body. The two ends of the spacer in the length direction are respectively connected to the corresponding corners.

[0031] And / or, the spacer is a plate-shaped member;

[0032] And / or, the height of the spacer is in the range of 7mm to 20mm;

[0033] And / or, the thickness of the separator ranges from 0.5 mm to 1 mm;

[0034] And / or, the minimum distance between the isolator and the first conductive terminal is not less than 4 mm;

[0035] And / or, the minimum distance between the isolator and the second conductive terminal is not less than 4 mm;

[0036] And / or, in the height direction of the upper cover, the spacer does not protrude from the end face of the upper cover.

[0037] Secondly, this utility model provides a battery pack housing, including a lower housing and a battery pack top cover assembly as described above;

[0038] The battery pack cover assembly is mounted on the lower housing.

[0039] Optionally, the second area is provided with a plug-in portion that is electrically connected to the interface board, and the plug-in portion is plugged into and connected to the electrical equipment;

[0040] The projection of the plug portion along the height direction of the battery pack housing is located outside the projection of the lower housing along the height direction of the battery pack housing.

[0041] Thirdly, this utility model provides a battery pack, including a battery module and a battery pack housing as described above, wherein the battery module is located inside the battery pack housing.

[0042] Fourthly, this utility model provides an electrical device, including the battery pack described above.

[0043] The battery pack cover assembly, battery pack housing, battery pack, and electrical equipment provided by this utility model, by setting an isolation component inside the cover of the battery pack cover assembly, divides the inner cavity of the cover into a first area for installing the control board and a second area for installing the interface board. In other words, the isolation component separates the control board and the interface board, that is, it separates the first conductive terminal on the control board and the second conductive terminal on the interface board. This, to a certain extent, avoids the generation of electric arc between the first and second conductive terminals, which could lead to fires, explosions, or other unsafe accidents in the battery pack, thereby improving the safety of the battery pack.

[0044] Furthermore, by making the separator an integrally formed metal part with the top cover—that is, the top cover and the separator are both integrally formed and both are metal parts—compared to the solution of making the top cover a plastic part, this utility model improves the structural strength of the top cover to a certain extent, enhances the impact resistance of the top cover assembly, and thus improves the structural strength of the battery pack top cover assembly and the battery pack housing. This effectively protects the battery modules and other components inside the battery pack, preventing damage or unsafe accidents caused by impacts or compression, thereby improving the safety of the battery pack. At the same time, integrally forming the separator with the top cover further improves the overall structural strength of the top cover assembly, reduces the number of molds required, improves manufacturing convenience, and reduces manufacturing costs to a certain extent.

[0045] Meanwhile, insulating layers are provided at least at the positions corresponding to the first conductive terminal and at least at the positions corresponding to the second conductive terminal of the separator to prevent the conductive terminals from contacting the separator, thereby further ensuring the effective isolation of the first and second conductive terminals by the separator. In other words, while improving the safety of the battery pack, the structural strength of the battery pack cover assembly and the entire battery pack housing is also improved. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of a battery pack according to an embodiment of the present invention;

[0047] Figure 2 This is a schematic diagram of the battery pack from another perspective according to an embodiment of the present invention;

[0048] Figure 3 This is a bottom view of the battery pack cover assembly according to an embodiment of the present invention;

[0049] Figure 4 This is a structural schematic diagram of the battery pack cover assembly according to another embodiment of the present invention;

[0050] Figure 5 for Figure 4 The corresponding structural diagram after removing the control board and interface board;

[0051] Figure 6 for Figure 5 Enlarged view of the structure at point I;

[0052] Figure 7 for Figure 5 Enlarged view of the structure at point A in the middle;

[0053] Figure 8 for Figure 5 Enlarged view of the structure at point B;

[0054] Figure 9 for Figure 3 Enlarged view of the structure at point I;

[0055] Figure 10 for Figure 3 Enlarged view of the structure at point A in the middle.

[0056] Among them, 100, battery pack top cover assembly; 1, top cover; 11, first zone; 12, second zone; 13, control board; 131, first conductive terminal; 14, interface board; 141, second conductive terminal; 142, plug-in part; 15, first main body part; 16, second main body part; 17, corner; 18, glue groove; 2, separator; 21, first bearing part; 22, second bearing part; 23, middle isolation section; 24, end isolation section; 241, side wall surface; 242, end wall surface; 3, insulating layer; 200, lower shell; 300, battery pack housing. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0058] The battery pack includes a housing and a battery module. The battery module may include multiple battery cells. The housing includes a lower shell and a top cover. The battery module is located inside the lower shell, and the top cover is placed on the lower shell.

[0059] The top cover houses a control board and an interface board. The battery module is electrically connected to the control board, which monitors and manages the battery module's status, such as its charge level, current, and temperature. The interface board is electrically connected to the device, enabling the battery pack to connect to external devices and thus allowing charging and discharging. However, battery pack safety remains a key concern for both the industry and consumers.

[0060] To at least improve the safety of the battery pack, this utility model provides a battery pack cover assembly, a battery pack housing, a battery pack, and electrical equipment. By setting an isolator inside the cover of the battery pack cover assembly, the control board and the interface board are separated into different areas. That is, the conductive terminals on the control board and the conductive terminals on the interface board are isolated, thereby preventing electric arcs between the conductive terminals on the control board and the conductive terminals on the interface board, which could lead to fires, explosions, or other unsafe accidents in the battery pack. At the same time, by setting the isolator as a metal part integrally formed with the cover, and setting an insulating layer at least at the position corresponding to the conductive terminals on the isolator, the conductive terminals are effectively isolated, improving the safety of the battery pack. This also improves the structural strength of the cover assembly, thereby improving the impact resistance of the cover assembly. In other words, the structural strength and safety of the battery pack are improved simultaneously.

[0061] The battery pack cover assembly, battery pack housing, battery pack, and electrical equipment provided by this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0062] Reference Figures 1 to 10 As shown, this embodiment provides a battery pack cover assembly 100, including a cover 1. A separator 2 is disposed inside the cover 1, dividing the inner cavity of the cover 1 into a first area 11 for mounting a control board 13 and a second area 12 for mounting an interface board 14. The first area 11 is provided with a first conductive terminal 131, and the second area 12 is provided with a second conductive terminal 141.

[0063] For example, the first conductive terminal 131 can be disposed on the control board 13, and the second conductive terminal 141 can be disposed on the interface board 14. The first conductive terminal 131 and the second conductive terminal 141 can be, for example, high-voltage terminals.

[0064] The first zone 11 may contain one, two or more first conductive terminals 131. The second zone 12 may contain one, two or more second conductive terminals 141, depending on actual requirements.

[0065] If an electric arc is generated between the first conductive terminal and the second conductive terminal, it may cause the battery pack to catch fire or explode. By isolating the first conductive terminal 131 and the second conductive terminal 141 with the insulating member 2, the occurrence of an electric arc between the first conductive terminal 131 and the second conductive terminal 141 can be avoided to a certain extent, thereby improving the safety of the battery pack.

[0066] The spacer 2 is a metal part integrally formed with the upper cover 1. That is, both the upper cover 1 and the spacer 2 are metal parts and are integrally formed. For example, the upper cover 1 and the spacer 2 are integrally formed by die casting.

[0067] Compared to designs that use injection-molded plastic covers, this invention uses a metal cover 1, which improves the structural strength of the cover 1, thereby increasing the structural strength of the battery pack cover assembly 100 and the battery pack housing 300, and enhancing the cover assembly's impact resistance. Since the separator 2 is integrally formed with the cover 1, the overall structural strength of the cover assembly is further improved, and the number of molds required is reduced, increasing manufacturing convenience and lowering production costs to some extent.

[0068] Meanwhile, in order to ensure that the isolator 2 effectively isolates the first conductive terminal 131 and the second conductive terminal 141 and prevents the conductive terminals from contacting the isolator 2, an insulating layer 3 is provided at least at the position corresponding to the first conductive terminal 131 and at least at the position corresponding to the second conductive terminal 141 of the isolator 2.

[0069] The insulating layer 3 provides insulation to the corresponding surface of the separator 2, thereby effectively isolating the conductive terminals and improving the safety of the battery pack.

[0070] In practice, a glue groove 18 can be provided on the side of the upper cover 1 facing the lower housing 200, that is, on the bottom edge of the upper cover 1. Glue is poured into the glue groove 18 to achieve a seal between the upper cover 1 and the lower housing 200, so as to prevent external moisture, dust, chemicals and other substances from entering the battery pack and causing corrosion or damage to the internal components of the battery pack, and also to prevent electrolyte leakage in the battery pack.

[0071] For example, the upper cover 1 includes a cover plate and a side wall arranged circumferentially along the cover plate, the side wall and the cover plate together forming the inner cavity of the upper cover. Specifically, the glue groove 18 can be provided on the bottom end face of the side wall of the upper cover 1 (i.e. the end face of the side wall of the upper cover 1 facing the lower housing 200).

[0072] In one feasible implementation, the insulating layer 3 can be an insulating adhesive coated on the surface of the insulating member 2.

[0073] For example, the insulating adhesive can be formed by partially flowing onto the surface of the insulating member 2 while the adhesive is being poured onto the top cover 1. This makes the installation of the insulating layer 3 more convenient, and while achieving insulation for the insulating member 2, the adhesive can directly bond to the insulating member 2 without the need for additional connectors to fix the insulating layer 3 to the insulating member 2.

[0074] Of course, in other implementations, the insulating adhesive on the insulating member 2 can also be formed by applying or dispensing adhesive separately on the insulating member 2.

[0075] In addition, the insulating layer 3 can also be insulating tape pasted on the insulating member 2 or other insulating materials sprayed on the insulating member 2.

[0076] The battery pack cover assembly 100 provided in this embodiment, by providing an isolation member 2 inside the cover 1 of the battery pack cover assembly 100, divides the inner cavity of the cover 1 into a first area 11 for mounting the control board 13 and a second area 12 for mounting the interface board 14. That is, the isolation member 2 separates the control board 13 and the interface board 14, that is, it separates the first conductive terminal 131 on the control board 13 and the second conductive terminal 141 on the interface board 14, thereby avoiding, to a certain extent, the generation of electric arc between the first conductive terminal 131 and the second conductive terminal 141, which could lead to fire, explosion or other unsafe accidents in the battery pack, thereby improving the safety of the battery pack.

[0077] Furthermore, by setting the separator 2 as a metal part integrally formed with the top cover 1, that is, the top cover 1 and the separator 2 are integrally formed and both are metal parts, compared with the solution of setting the top cover 1 as a plastic part, this utility model improves the structural strength of the top cover 1 to a certain extent by setting the top cover 1 as a metal part, improves the impact resistance of the top cover assembly, and thus improves the structural strength of the battery pack top cover assembly 100 and the battery pack box, effectively protecting the battery modules and other components inside the battery pack, and avoiding damage to the battery modules and other components from impacts or unsafe accidents; at the same time, the integral forming of the separator 2 with the top cover 1 further improves the overall structural strength of the top cover assembly, and reduces the number of molds required, improves the convenience of manufacturing, and reduces the manufacturing cost to a certain extent.

[0078] Meanwhile, an insulating layer 3 is provided at least at the position corresponding to the first conductive terminal 131 and at least at the position corresponding to the second conductive terminal 141 of the isolation member 2 to prevent the conductive terminal from contacting the isolation member 2, thereby further ensuring the effective isolation of the first conductive terminal 131 and the second conductive terminal 141 by the isolation member 2. In other words, while improving the safety of the battery pack, the structural strength of the battery pack cover assembly 100 and the entire battery pack box is improved.

[0079] In some embodiments, the insulating layer 3 can cover the entire surface of the separator 2, which can further improve the insulation effect of the surface of the separator 2, thereby further improving the effective isolation between the separator 2 and the first conductive terminal 131 of the first region 11 and the second conductive terminal 141 of the second region 12. It can also further prevent the conductive terminals from making conductive contact with the separator 2 and generating safety hazards such as sparks, thereby further improving the safety of the battery pack.

[0080] Reference Figures 3 to 10 As shown, in some embodiments, the spacer 2 can specifically be a plate-shaped member.

[0081] This effectively isolates the first conductive terminal 131 and the second conductive terminal 141, making manufacturing easier and saving internal space of the top cover 1.

[0082] Combination Figures 4 to 6 As shown, in some embodiments, a first support portion 21 is provided on the side of the isolation member 2 facing the first region 11, and at least a portion of the edge of the control plate 13 on the side near the isolation member 2 overlaps the first support portion 21.

[0083] This configuration allows the first support unit 21 to support and position the control board 13 to a certain extent, improving the assembly efficiency and stability of the control board 13, thereby ensuring the stable operation of the battery pack.

[0084] In a specific implementation, the first supporting part 21 can be a first step set on the side of the isolation member 2 facing the first area 11. The control plate 13 is supported by the step, which is convenient to manufacture and improves the stability of the control plate 13.

[0085] Of course, in other implementations, the first support portion 21 may also be a protrusion provided on the side of the isolation member 2 facing the first region 11.

[0086] In some embodiments, the first support portion 21 and the separator 2 are integrally formed. This further improves the stability of the first support portion 21 in supporting the control board 13, further improves the structural strength of the separator 2 and the first support portion 21 as a whole, and further improves the structural strength of the upper cover assembly, and makes the assembly of the battery pack housing 300 more convenient.

[0087] Combination Figures 4 to 6 As shown, in some embodiments, a second support portion 22 is provided on the side of the isolation member 2 facing the second region 12, and at least a portion of the edge of the interface plate 14 on the side near the isolation member 2 overlaps the second support portion 22.

[0088] This configuration allows the second support unit 22 to support and position the interface board 14 to a certain extent, improving the assembly efficiency and stability of the interface board 14, thereby ensuring the stable operation of the battery pack.

[0089] In a specific implementation, the second bearing part 22 can be a second step provided on the side of the isolation member 2 facing the second area 12. The step supports the interface plate 14, which is convenient to manufacture and improves the stability of the interface plate 14.

[0090] Of course, in other implementations, the second support portion 22 may also be a protrusion provided on the side of the isolation member 2 facing the second region 12.

[0091] In some embodiments, the second support portion 22 is integrally formed with the separator 2. This further improves the stability of the second support portion 22 in supporting the interface plate 14, further improves the overall structural strength of the separator 2 and the second support portion 22, and further improves the structural strength of the top cover assembly, and makes the assembly of the battery pack housing 300 more convenient.

[0092] Reference Figures 3 to 8 As shown, in some embodiments, along the length direction of the isolation member 2, the isolation member 2 may specifically include: a central isolation section 23 and two end isolation sections 24. The two end isolation sections 24 are respectively connected to both ends of the central isolation section 23 along its length direction. The end of the end isolation section 24 furthest from the central isolation section 23 is connected to the upper cover 1.

[0093] For example, the spacer 2 can be bent within the upper cover 1 according to the layout of the internal components of the upper cover 1, so as to effectively utilize the internal space of the upper cover 1.

[0094] Continue to refer to Figures 4 to 8 As shown, in some embodiments, the height h of the end isolation section 24 may be greater than the height h of the middle isolation section 23.

[0095] This design increases the connection area between the end isolation section 24 and the top cover 1, that is, it increases the connection area between the end of the isolation member 2 and the top cover 1, thereby further improving the structural strength of the connection between the isolation member 2 and the top cover 1, reducing the stress at the connection between the isolation member 2 and the top cover 1, and to a certain extent avoiding the occurrence of breakage or cracking at the connection between the two, ensuring the effective isolation of the conductive terminals by the isolation member 2, and improving the structural strength of the entire top cover assembly, thereby improving the structural strength of the entire battery pack housing 300.

[0096] Furthermore, the height of the end isolation section 24 can be gradually increased in the direction from the middle isolation section 23 to the end isolation section 24.

[0097] This design makes the end isolation section 24 relatively smooth, avoiding excessive stress on the end isolation section 24 and adjacent positions that could lead to breakage or damage, further improving the structural strength of the isolation component 2, thereby further ensuring the isolation effect and improving the structural strength of the upper cover assembly.

[0098] Continue to refer to Figures 4 to 8As shown, in some embodiments, the end isolation section 24 specifically includes: two opposing sidewall surfaces 241 and an end wall surface 242 connecting the two sidewall surfaces 241. One sidewall surface 241 faces the first region 11, and the other sidewall surface 241 faces the second region 12. The end of the sidewall surface 241 away from the central isolation section 23 is connected to the upper cover 1.

[0099] Specifically, the height of the sidewall 241 can be gradually increased along the direction from the middle isolation section 23 to the end isolation section 24. That is, the height of the two sidewalls 241 gradually increases along the direction from the middle isolation section 23 to the end isolation section 24, thereby increasing the area at the connection between the end isolation section 24 and the upper cover 1, improving the structural strength of the connection, and making the end isolation section 24 smoother overall, avoiding excessive stress at the end isolation section 24 that could lead to breakage or damage, thereby improving the stability of the isolation member 2.

[0100] Reference Figures 4 to 8 As shown, in some embodiments, the thickness D of the end isolation section 24 is greater than the thickness D of the middle isolation section 23.

[0101] This design increases the connection area between the end isolation section 24 and the top cover 1. In other words, it increases the connection area between the end of the isolation member 2 and the top cover 1, thereby further improving the structural strength of the connection between the isolation member 2 and the top cover 1, reducing the stress at the connection between the isolation member 2 and the top cover 1, and to a certain extent avoiding the occurrence of breakage or cracking at the connection between the two. This ensures the effective isolation of the conductive terminals by the isolation member 2 and improves the structural strength of the entire top cover assembly, thereby improving the structural strength of the entire battery pack housing 300.

[0102] Furthermore, the thickness of the end isolation section 24 can be gradually increased in the direction from the middle isolation section 23 to the end isolation section 24.

[0103] This design makes the side edges of the end isolation section 24 smoother, which can avoid the end isolation section 24 from being broken or cracked due to excessive stress to a certain extent, further improving the structural strength of the isolation member 2, and thus further ensuring the isolation effect of the isolation member 2.

[0104] Specifically, at least one of the sidewalls 241 may be bent and extended in a direction away from the other sidewall 241 in the direction along the middle isolation section 23 to the end isolation section 24.

[0105] In one feasible implementation, the sidewall 241 of the end isolation section 24 facing the first region 11 can be bent and extended away from the second region 12 in the direction from the middle isolation section 23 to the end isolation section 24, thereby gradually increasing the thickness of the end isolation section 24.

[0106] For example, in the direction from the middle isolation section 23 to the end isolation section 24, the side wall surface 241 of the end isolation section 24 facing the first region 11 is an arc-shaped surface. This arrangement makes the side wall of the end isolation section 24 smoother when the thickness of the end isolation section 24 is increased, which further improves the structural strength and stability at that location.

[0107] In a second feasible implementation, the sidewall 241 of the end isolation section 24 facing the second region 12 can be bent and extended away from the first region 11 in the direction from the middle isolation section 23 to the end isolation section 24, thereby gradually increasing the thickness of the end isolation section 24.

[0108] For example, in the direction from the middle isolation section 23 to the end isolation section 24, the side wall surface 241 of the end isolation section 24 facing the second region 12 is an arc-shaped surface. This arrangement makes the side wall of the end isolation section 24 smoother when the thickness of the end isolation section 24 is increased, which further improves the structural strength and stability at that location.

[0109] In the third feasible implementation, along the direction from the middle isolation section 23 to the end isolation section 24, the side wall 241 of the end isolation section 24 facing the first region 11 can be bent and extended away from the second region 12, and the side wall 241 of the end isolation section 24 facing the second region 12 can be bent and extended away from the first region 11, thereby gradually increasing the thickness of the end isolation section 24 and increasing the connection area between the isolation member 2 and the upper cover 1.

[0110] In some embodiments, the end wall surface 242 may also be formed as an arc-shaped surface.

[0111] Reference Figures 3 to 5 As shown, in some embodiments, the upper cover 1 may specifically include: a first main body portion 15 and a second main body portion 16, the second main body portion 16 protruding from the middle of the first main body portion 15 toward a direction away from the first main body portion 15, and the two sides of the second main body portion 16 forming corners 17 at the junction with the first main body portion 15.

[0112] For example, the top cover 1 is roughly formed into a T-shaped structure.

[0113] In practice, the two ends of the spacer 2 along its length can be connected to the corresponding corners 17. This arrangement also makes the spacer 2 structurally reinforce the corners 17, reducing the stress at the corners 17 and thus improving the structural strength of the upper cover assembly.

[0114] In practical implementation, if the height of the isolator 2 is too low, it will reduce the isolation effect of the isolator 2 on the first conductive terminal 131 and the second conductive terminal 141. However, if the height of the isolator 2 is set too high, when the upper cover assembly is assembled on the lower housing 200, the isolator 2 may interfere with other components inside the battery pack housing 300, and will also lead to waste of materials used in the manufacture of the isolator 2. Based on this, referring to Figure 8 As shown, in some embodiments, the height h of the spacer 2 can be set between 7mm and 20mm.

[0115] The height h of the isolation element 2 here can be, for example, the average height of the isolation element 2.

[0116] For example, the height h of the separator 2 can be 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm.

[0117] By setting the height h of the isolator 2 within the aforementioned range, not only is the effective isolation of the first conductive terminal 131 and the second conductive terminal 141 by the isolator 2 guaranteed, but also interference between the isolator 2 and other components within the battery pack housing 300 can be avoided to a certain extent, ensuring the normal assembly of the battery pack and preventing waste of isolator 2 materials.

[0118] In practical implementation, if the thickness of the isolator 2 is too small, it will affect the structural strength of the isolator 2 itself, thereby affecting the isolation effect of the isolator 2 on the first conductive terminal 131 and the second conductive terminal 141. However, if the thickness of the isolator 2 is too large, it will affect the assembly of the surrounding devices and result in a large amount of material consumption in the manufacture of the isolator 2. Based on this, referring to Figure 6 As shown, in some embodiments, the thickness D of the spacer 2 can be set between 0.5 mm and 1 mm.

[0119] The thickness D of the separator 2 here can be, for example, the average thickness of the separator 2.

[0120] For example, the thickness D of the separator 2 can be 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, or 1mm.

[0121] By setting the thickness D of the isolator 2 within the above range, not only is the structural strength of the isolator 2 itself guaranteed, thus ensuring the effective isolation of the first conductive terminal 131 and the second conductive terminal 141 by the isolator 2, but it will also not affect the assembly of surrounding devices and save on manufacturing materials.

[0122] Combination Figure 3 and Figure 9 As shown, in some embodiments, the minimum distance b between the isolator 2 and the first conductive terminal 131 is not less than 4 mm.

[0123] The minimum distance b here can be understood as the distance from the point / surface of the first conductive terminal 131 that is closest to the isolator 2 to the isolator 2.

[0124] For example, the distance between the isolator 2 and the first conductive terminal 131 can be set to 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 5mm, 6mm, 7mm, or 8mm.

[0125] This ensures that the isolator 2 maintains a certain safe distance from the first conductive terminal 131, further guaranteeing the effective isolation of the first conductive terminal 131 and the second conductive terminal 141 by the isolator 2, and preventing the conductive terminal from coming into contact with the isolator 2, thus further improving the safety of the battery pack.

[0126] Combination Figure 3 and Figure 10 As shown, in some embodiments, the minimum distance c between the isolator 2 and the second conductive terminal 141 is not less than 4 mm.

[0127] The minimum distance c here can be understood as the distance from the point / surface of the second conductive terminal 141 that is closest to the isolator 2 to the isolator 2.

[0128] For example, the distance between the isolator 2 and the second conductive terminal 141 can be set to 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 5mm, 6mm, 7mm, or 8mm.

[0129] This ensures that the isolator 2 maintains a certain safe distance from the second conductive terminal 141, further guaranteeing the effective isolation of the first conductive terminal 131 and the second conductive terminal 141 by the isolator 2, and preventing the conductive terminals from coming into contact with the isolator 2, thus further improving the safety of the battery pack.

[0130] In some embodiments, the spacer 2 does not protrude from the end face of the upper cover 1 along the height direction of the upper cover 1. Here, the height direction refers to... Figure 1 and Figure 2 The ZZ direction. The end face of the upper cover 1 here is the bottom end face of the upper cover 1 facing the lower housing 200.

[0131] In this way, when the battery pack top cover assembly 100 is assembled on the lower housing 200, interference between the separator 2 and the components inside the lower housing 200 can be avoided.

[0132] This embodiment also provides a battery pack housing 300, including a lower housing 200 and an upper cover assembly, with the upper cover assembly covering the lower housing 200.

[0133] The top cover assembly in this embodiment has the same structure and implementation principle as the battery pack top cover assembly 100 provided in the above embodiment, and can bring the same or similar technical effects, which will not be described in detail here.

[0134] Other technical features are the same as those in the above embodiments, and specific details can be found in the description of the above embodiments.

[0135] Reference Figure 2 As shown, the second zone 12 is provided with a plug-in part 142 that is electrically connected to the interface board 14, and the plug-in part 142 is plugged into and connected to the electrical equipment.

[0136] In some embodiments, the insertion portion 142 is along the height direction of the battery pack housing 300. Figure 1 and Figure 2 The projection of the lower housing 200 in the ZZ direction is located outside the projection of the lower housing 200 along the height direction of the battery pack housing 300.

[0137] The insertion part 142 is located in the second area 12, which makes it easier to connect the insertion part 142 to the interface board 14. Moreover, the above arrangement makes the insertion part 142 exposed on the outside of the lower housing 200, which facilitates the insertion part 142 to be connected to the electrical equipment and improves the user experience.

[0138] This embodiment also provides a battery pack, including a battery pack housing 300 and a battery module, wherein the battery module is located inside the battery pack housing 300.

[0139] The battery pack housing 300 in this embodiment has the same structure as the battery pack housing 300 provided in the above embodiments, and can bring the same or similar technical effects. It will not be described in detail here. For details, please refer to the description of the above embodiments.

[0140] This embodiment also provides an electrical device, which includes a battery pack.

[0141] The battery pack in this embodiment has the same specific structure and implementation principle as the battery pack provided in the above embodiments, and can bring the same or similar technical effects. It will not be described in detail here. For details, please refer to the description of the above embodiments.

[0142] In practice, the electrical device has a corresponding plug-in part, and the plug-in part on the electrical device matches and plugs into the aforementioned plug-in part 142 of the battery pack cover assembly 100, thereby enabling the battery pack to supply power to the electrical device.

[0143] For example, an electrical device may have a battery compartment in which a battery pack is placed.

[0144] Electrical equipment can include, but is not limited to, pure electric vehicles, hybrid electric vehicles, electric bicycles, drones, etc.

[0145] Other technical features are the same as those in the above embodiments, and will not be repeated here. For details, please refer to the description of the above embodiments.

[0146] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection or an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, the terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., 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 component 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.

[0147] In this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0148] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack cover assembly, characterized in that, Including the top cover (1); An isolation member (2) is provided inside the upper cover (1), which divides the inner cavity of the upper cover (1) into a first area (11) for mounting the control board (13) and a second area (12) for mounting the interface board (14); the first area (11) is provided with a first conductive terminal (131), and the second area (12) is provided with a second conductive terminal (141); The isolation member (2) is a metal part integrally formed with the upper cover (1), and the isolation member (2) is provided with an insulating layer (3) at least at the position corresponding to the first conductive terminal (131) and at least at the position corresponding to the second conductive terminal (141).

2. The battery pack cover assembly according to claim 1, characterized in that, The insulating layer (3) is an insulating adhesive coated on the surface of the insulating member (2); And / or, the insulating layer (3) covers the entire surface of the insulating member (2).

3. The battery pack cover assembly according to claim 1, characterized in that, The isolation member (2) has a first support portion (21) on the side facing the first area (11), and at least a portion of the edge of the control plate (13) on the side near the isolation member (2) overlaps the first support portion (21).

4. The battery pack cover assembly according to claim 3, characterized in that, The first support part (21) is a first step provided on the side of the isolation member (2) facing the first area (11); And / or, the first support portion (21) is integrally formed with the isolation member (2).

5. The battery pack cover assembly according to claim 1, characterized in that, The isolation member (2) has a second support portion (22) on the side facing the second area (12), and at least a portion of the edge of the interface plate (14) on the side near the isolation member (2) overlaps on the second support portion (22).

6. The battery pack cover assembly according to claim 5, characterized in that, The second support portion (22) is a second step provided on the side of the isolation member (2) facing the second area (12); And / or, the second support portion (22) is integrally formed with the isolation member (2).

7. The battery pack cover assembly according to any one of claims 1 to 6, characterized in that, Along the length of the isolation member (2), the isolation member (2) includes a middle isolation section (23) and two end isolation sections (24), the two end isolation sections (24) being respectively connected to the two ends of the middle isolation section (23) along the length of the middle isolation section (23); The end of the end isolation section (24) that is away from the middle isolation section (23) is connected to the top cover (1).

8. The battery pack cover assembly according to claim 7, characterized in that, The height of the end isolation section (24) is greater than the height of the middle isolation section (23).

9. The battery pack cover assembly according to claim 8, characterized in that, The height of the end isolation section (24) gradually increases along the direction from the middle isolation section (23) to the end isolation section (24).

10. The battery pack cover assembly according to claim 9, characterized in that, The end isolation section (24) includes two opposing sidewalls (241) and an end wall (242) connected between the two sidewalls (241); One of the sidewall surfaces (241) faces the first region (11), and the other sidewall surface (241) faces the second region (12). The end of the sidewall surface (241) away from the central isolation section (23) is connected to the top cover (1). The height of the sidewall (241) gradually increases in the direction from the middle isolation section (23) to the end isolation section (24).

11. The battery pack cover assembly according to claim 7, characterized in that, The thickness of the end isolation section (24) is greater than the thickness of the middle isolation section (23).

12. The battery pack cover assembly according to claim 11, characterized in that, The thickness of the end isolation section (24) gradually increases in the direction from the middle isolation section (23) to the end isolation section (24).

13. The battery pack cover assembly according to claim 12, characterized in that, The end isolation section (24) includes two opposing sidewalls (241) and an end wall (242) connected between the two sidewalls (241); One of the sidewall surfaces (241) faces the first region (11), and the other sidewall surface (241) faces the second region (12). The end of the sidewall surface (241) away from the central isolation section (23) is connected to the top cover (1). In the direction from the middle isolation section (23) to the end isolation section (24), at least one of the sidewalls (241) bends and extends away from the other sidewall (241).

14. The battery pack cover assembly according to claim 13, characterized in that, The side wall (241) of the end isolation section (24) facing the first area (11) is an arc-shaped surface; And / or, the sidewall (241) of the end isolation section (24) facing the second region (12) is an arc-shaped surface; And / or, the end wall surface (242) is an arc-shaped surface.

15. The battery pack cover assembly according to any one of claims 1 to 6, characterized in that, The top cover (1) includes a first main body (15) and a second main body (16). The second main body (16) protrudes from the middle of the first main body (15) in a direction away from the first main body (15). The two sides of the second main body (16) form corners (17) at the joints with the first main body (15). The two ends of the isolation member (2) in the length direction are respectively connected to the corresponding corners (17). And / or, the spacer (2) is a plate-shaped piece; And / or, the height of the spacer (2) is in the range of 7mm to 20mm; And / or, the thickness of the separator (2) ranges from 0.5 mm to 1 mm; And / or, the minimum distance between the isolator (2) and the first conductive terminal (131) is not less than 4 mm; And / or, the minimum distance between the isolator (2) and the second conductive terminal (141) is not less than 4 mm; And / or, in the height direction along the upper cover (1), the spacer (2) does not protrude from the end face of the upper cover (1).

16. A battery pack housing, characterized in that, Includes a lower housing (200) and a battery pack cover assembly as described in any one of claims 1 to 15; The battery pack cover assembly is mounted on the lower housing (200).

17. The battery pack housing according to claim 16, characterized in that, The second area (12) is provided with a plug-in part (142) that is electrically connected to the interface board (14), and the plug-in part (142) is plugged into and connected to the electrical equipment; The projection of the plug-in portion (142) along the height direction of the battery pack housing is located outside the projection of the lower housing (200) along the height direction of the battery pack housing.

18. A battery pack, characterized in that, It includes a battery module and a battery pack housing as described in claim 16 or 17, wherein the battery module is located within the battery pack housing.

19. An electrical appliance, characterized in that, Includes the battery pack as described in claim 18.

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