Housing assembly, battery, battery assembly and electronic device

Abstract

The invention provides a shell assembly, a battery, a battery assembly and electronic equipment, and relates to the technical field of electronic equipment, a shell of the shell assembly is provided with an accommodating cavity, the accommodating cavity is suitable for accommodating a pole core assembly, the shell is provided with a first mounting part, the first mounting part sinks towards the accommodating cavity, and the first mounting part is provided with a second mounting part; the second installation part sinks towards the containing cavity and is suitable for containing the circuit board assembly. According to the shell assembly provided by the invention, the increase of the total height of the shell assembly by the circuit board assembly can be reduced, and the space occupancy rate of the shell assembly and the battery is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a housing assembly, a battery, a battery assembly, and an electronic device. Background Art

[0002] Batteries are typically installed in electronic devices and are used to provide electrical energy for the electronic devices. The battery may include a housing assembly and a core assembly. The battery provides current to the electrical device via a circuit board assembly installed in the housing assembly.

[0003] However, when the circuit board in the above-mentioned related technology is set on the housing, it will occupy the space outside the battery, resulting in reduced space utilization of the battery component and reduced space utilization of the battery itself inside the electronic device, which is not conducive to the thinning of the battery or electronic device. Summary of the Invention

[0004] The embodiments of the present application provide a housing assembly, a battery, a battery assembly, and an electronic device, which are used to solve the technical problem in the above-mentioned related technologies that when a circuit board is set on the housing, it occupies the space outside the battery, resulting in reduced space utilization of the battery assembly and reduced space utilization of the battery itself inside the electronic device, which is not conducive to the thinning of the battery or the electronic device.

[0005] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0006] A first aspect of an embodiment of the present application provides a housing assembly, comprising:

[0007] The shell has a accommodating cavity, which is suitable for accommodating a pole core assembly. The shell has a first mounting portion, which is sunken toward the accommodating cavity. The first mounting portion has a second mounting portion, which is sunken toward the accommodating cavity. The second mounting portion is suitable for accommodating a circuit board assembly.

[0008] An embodiment of the present application provides a housing assembly. The housing assembly includes a first mounting portion that is recessed toward an accommodating cavity, such that the thickness of the housing at the first mounting portion is less than the thickness at other locations on the housing. A second mounting portion is provided on the first mounting portion, and a circuit board assembly is disposed within the second mounting portion. Compared to disposing the circuit board assembly at a location on the housing other than the first mounting portion, this arrangement can reduce the impact of the circuit board assembly on the space occupancy of the housing assembly, reduce the space occupancy of the housing assembly, and reduce the likelihood of interference between the housing assembly and other electrical devices in the electronic device.

[0009] Based on the above technical solution, this application can also be improved as follows.

[0010] In a possible implementation, the first mounting portion has an inclined portion, and the inclined portion is inclined toward the accommodating cavity.

[0011] In one possible implementation, the housing includes:

[0012] a shell body, the shell body having a first opening;

[0013] The first cover plate is suitable for covering the first opening and is connected to the shell body to form the accommodating cavity. The first mounting portion is located on the first cover plate. The first cover plate includes a straight portion and an inclined portion connected to the straight portion. The inclined portion is inclined relative to the straight portion toward the accommodating cavity.

[0014] In a possible implementation, the shell body has a first end and a second end opposite to each other along the second direction, and the inclined portion is located on a side of the straight portion close to the first end.

[0015] In a possible implementation, the shell body includes a frame and a second cover plate, the frame has the first opening and the second opening arranged opposite to each other, the first cover plate is suitable for covering the first opening, and the second cover plate is suitable for covering the second opening.

[0016] In a possible implementation, the straight portion is parallel to the second cover plate;

[0017] One end of the inclined portion is connected to the straight portion, and the other end is connected to the first end.

[0018] In a possible implementation, the second mounting portion is provided on the inclined portion, and the second mounting portion is a recessed portion sunken toward the accommodating cavity, and the recessed portion is suitable for accommodating the circuit board assembly.

[0019] In a possible implementation, along the first direction, a distance between the bottom wall of the lower recess and the second cover plate is ≥0.07 mm.

[0020] In a possible implementation, the lower recess is provided with a pole hole penetrating through the bottom wall.

[0021] In a possible implementation, the lower recess is provided with a liquid injection hole penetrating through the bottom wall.

[0022] In a possible implementation, the frame includes a first side wall, a second side wall, a third side wall, and a fourth side wall, the first end is located on the first side wall, the second end is located on the second side wall, and the third side wall and the fourth side wall are connected to both ends of the first side wall and the second side wall, respectively;

[0023] The third side wall and the fourth side wall each include:

[0024] a first frame, connected to the inclined portion correspondingly;

[0025] a second frame, connected to the straight portion correspondingly;

[0026] In a thickness direction of the straight portion, a size of the first frame is smaller than or equal to a size of the second frame.

[0027] In a possible implementation, in the thickness direction of the straight portion, a size of the first frame gradually decreases from the second end to the first end.

[0028] In one possible implementation, the first frame includes a first edge connected to the inclined portion, the second frame includes a second edge connected to the straight portion, and an angle is formed between the first edge and the second edge, and the angle ranges from greater than or equal to 165° to less than or equal to 179°.

[0029] In a possible implementation, in the thickness direction of the straight portion, the size of the first side wall is H1, the size of the second side wall is H2, H1:H2=0.70-0.95, wherein H1 and H2 are measured in the same unit.

[0030] In one possible implementation, the second mounting portion is a recessed portion sunken toward the accommodating cavity, the depth of the recessed portion is H3, the dimension of the second side wall in the thickness direction of the straight portion is H2, and H3:H2=0.3-0.7, wherein H3 and H2 are measured in the same unit.

[0031] In one possible implementation, the first side wall and the third side wall are connected by an arc edge, and / or the third side wall and the second side wall are connected by an arc edge, and / or the second side wall and the fourth side wall are connected by an arc edge, and / or the fourth side wall and the first side wall are connected by an arc edge.

[0032] In a possible implementation, the area of ​​the outer surface of the first cover plate is greater than the area of ​​the outer surface of any of the first side wall, the second side wall, the third side wall, and the fourth side wall.

[0033] In a possible implementation, the shell is made of steel or titanium alloy.

[0034] A second aspect of the embodiments of the present application provides a battery, comprising:

[0035] a housing assembly as described above;

[0036] The pole core assembly is accommodated in the accommodating cavity.

[0037] In a possible implementation, the pole core assembly includes:

[0038] A pole core is disposed in the accommodating cavity;

[0039] The pole tab is connected to one side of the pole core close to the first mounting portion on the shell of the housing assembly along the second direction.

[0040] In a possible implementation, the second mounting portion is provided with a pole hole penetrating through the bottom wall, and the battery further includes a pole assembly, and the pole assembly passes through the pole hole.

[0041] In a possible implementation, the tabs include a positive electrode tab and a negative electrode tab that are spaced apart.

[0042] The pole assembly includes a positive pole assembly and a negative pole assembly, one end of the positive pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the positive pole assembly is electrically connected to the positive pole tab; one end of the negative pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the negative pole assembly is electrically connected to the negative pole tab.

[0043] In a possible implementation, the tabs include a positive electrode tab and a negative electrode tab that are spaced apart.

[0044] The pole assembly is a positive pole assembly, one end of the positive pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the positive pole assembly is electrically connected to the positive electrode tab;

[0045] The negative electrode tab is electrically connected to the inner wall of the shell, or,

[0046] The pole assembly is a negative pole assembly, one end of the negative pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the negative pole assembly is electrically connected to the negative electrode tab;

[0047] The positive electrode tab is electrically connected to the inner wall of the shell.

[0048] In a possible implementation, the pole assembly includes:

[0049] A conductive connecting piece is provided on a side of the bottom wall of the second mounting portion facing the accommodating cavity, and the conductive connecting piece is electrically connected to the tab;

[0050] The pole has one end adapted to be electrically connected to the circuit board assembly, and the other end passing through the second mounting portion and electrically connected to the conductive connecting piece.

[0051] In a possible implementation, the pole assembly further includes:

[0052] a first insulating member, disposed between the pole and the second mounting portion;

[0053] The second insulating member is disposed between the conductive connecting piece and the second mounting portion.

[0054] In a possible implementation, the battery further includes a filling body;

[0055] The filling body is disposed in the accommodating cavity, and the filling body is disposed corresponding to the second mounting portion.

[0056] In a possible implementation manner, the filling body is supported on a bottom wall of the second mounting portion.

[0057] In a possible implementation, the second mounting portion is provided with a liquid injection hole penetrating through the bottom wall, and the filling body has a first avoidance portion corresponding to the liquid injection hole.

[0058] In a possible implementation manner, the orthographic projection of the first avoiding portion along the first direction completely covers the orthographic projection of the liquid injection hole along the first direction.

[0059] In a possible implementation, the first avoidance portion is a through hole or a third opening that penetrates along the thickness direction of the filling body, and the through hole or the third opening is used to connect the injection hole and the accommodating cavity.

[0060] In one possible implementation, the battery further includes:

[0061] A sealing plug, used to seal the liquid injection hole;

[0062] A sealing cover is provided on a side of the sealing plug facing away from the accommodating cavity.

[0063] In a possible implementation, the tabs include a positive electrode tab and a negative electrode tab that are spaced apart.

[0064] The negative electrode tab is electrically connected to the housing, the filling body has a second avoidance portion corresponding to the negative electrode tab, and the negative electrode tab is connected to the bottom wall of the second mounting portion through the second avoidance portion;

[0065] Alternatively, the positive electrode tab is electrically connected to the shell, the filling body has a third avoidance portion corresponding to the positive electrode tab, and the positive electrode tab is connected to the bottom wall of the second mounting portion through the third avoidance portion.

[0066] In a possible implementation, in the thickness direction of the bottom wall of the second mounting portion, the depth of the second avoidance portion is greater than or equal to the thickness of the negative electrode tab; or,

[0067] In the thickness direction of the bottom wall of the second mounting portion, the depth of the third avoidance portion is greater than or equal to the thickness of the positive electrode tab.

[0068] In a possible implementation, the tabs include a positive tab and a negative tab that are spaced apart.

[0069] The negative electrode tab is electrically connected to the housing, the second mounting portion has a third end and a fourth end opposite to each other in the length direction, the negative electrode tab is closer to the fourth end relative to the positive electrode tab, and along the length direction of the second mounting portion, one end of the filling body is closer to the positive electrode tab and faces the negative electrode tab, and the other end of the filling body extends to the fourth end; or

[0070] The positive electrode tab is electrically connected to the housing, the second mounting portion has a third end and a fourth end opposite to each other in the length direction, the positive electrode tab is closer to the third end than the negative electrode tab, and along the length direction of the second mounting portion, one end of the filling body is closer to the negative electrode tab and faces the positive electrode tab, and the other end of the filling body extends to the third end; or

[0071] The positive electrode tab is electrically connected to the positive electrode post assembly, and the negative electrode tab is electrically connected to the negative electrode post assembly. In the length direction of the second mounting portion, one end of the filling body is close to the negative electrode tab and faces the positive electrode tab, and the other end of the filling body is close to the positive electrode tab and faces the negative electrode tab.

[0072] In a possible implementation, the filling body is an insulating structure;

[0073] And / or, the filler is made of polypropylene or acrylonitrile-butadiene-styrene copolymer.

[0074] In a possible implementation, the battery further includes an insulating member;

[0075] The insulating member is provided on an inner wall of the housing opposite to the first mounting portion, and the insulating member is used to insulate the tab from the inner wall opposite to the first mounting portion.

[0076] A third aspect of the embodiments of the present application provides a battery assembly, which includes a circuit board assembly and the battery as described above;

[0077] The circuit board assembly is at least partially disposed in the second mounting portion.

[0078] In a possible implementation, the circuit board assembly includes a first circuit board, the first circuit board is disposed in the second mounting portion, and the first circuit board is electrically connected to the battery.

[0079] In a possible implementation, the first circuit board does not protrude from the plane where the recess of the second mounting portion is located.

[0080] In a possible implementation, the circuit board assembly further includes a second circuit board;

[0081] One end of the second circuit board is electrically connected to the first circuit board, and the other end of the second circuit board extends outside the housing.

[0082] In a possible implementation, a portion of the second circuit board is located on a side of the first circuit board facing away from the bottom wall of the second mounting portion;

[0083] The maximum thickness of the battery assembly corresponding to the first mounting portion in the first direction is less than or equal to the thickness of the remaining positions of the battery assembly in the first direction.

[0084] In a possible implementation, the second circuit board is a flexible circuit board.

[0085] A fourth aspect of the embodiments of the present application provides an electronic device, comprising an electric device and the battery as described above, wherein the battery is used to power the electric device;

[0086] Alternatively, a battery assembly as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0088] Figure 1 A schematic structural diagram of a housing assembly provided in an embodiment of the present application;

[0089] Figure 2 A schematic structural diagram of a battery provided in an embodiment of the present application from another angle;

[0090] Figure 3 An exploded diagram of the structure of a battery provided in an embodiment of the present application;

[0091] Figure 4 An exploded view from another angle of the structure of a battery provided in an embodiment of the present application.

[0092] Description of reference numerals:

[0093] 100-housing assembly;

[0094] 110 - housing; 110a - first mounting portion; 110b - second mounting portion; 120 - first circuit board; 130 - second circuit board; 140 - circuit board assembly;

[0095] 111 - first end; 112 - second end; 113 - inclined portion; 114 - concave portion;

[0096] 115 - liquid injection hole; 116 - first cover plate; 117 - second cover plate; 118 - frame;

[0097] 119-shell body;

[0098] 1101-accommodation cavity;

[0099] 1141 - first opening; 1142 - third end; 1143 - fourth end; 1144 - notch;

[0100] 1161 - straight portion; 1181 - first frame; 1182 - second frame; 1183 - first side wall;

[0101] 1184 - second side wall; 1185 - third side wall; 1186 - fourth side wall;

[0102] 1187-first edge; 1188-second edge;

[0103] 200-core assembly;

[0104] 210-pole core; 220-pole tab; 220a-positive pole tab; 220b-negative pole tab;

[0105] 300-pole assembly; 300a-positive pole assembly;

[0106] 310 - conductive connecting piece; 320 - pole; 320a - positive pole; 330 - first insulating member; 340 - second insulating member;

[0107] 400-filler;

[0108] 410 - first avoidance portion; 411 - third opening; 420 - second avoidance portion;

[0109] 500-sealing plug; 600-sealing cover; 700-insulating part. DETAILED DESCRIPTION

[0110] As described in the background technology, when the circuit board in the above-mentioned related technology is set on the casing, it will occupy part of the space in the thickness direction of the battery, resulting in a decrease in the space utilization of the battery in the thickness direction and an increase in the space occupancy of the battery inside the electronic device, which is not conducive to the thinning of the battery or the electronic device.

[0111] The reason for this problem is that the circuit board in the prior art protrudes from the surface of the battery shell in the thickness direction. This causes the position of the circuit board to occupy a large space inside the electronic device when the battery is installed in the electronic device, and causes the electrical devices in the electronic device to interfere with the circuit board, affecting the assembly of the electronic device.

[0112] In response to the above technical problems, embodiments of the present application provide a housing assembly, a battery, a battery assembly, and an electronic device. The housing assembly is provided with a first mounting portion that is recessed toward the accommodating cavity, so that the thickness of the housing at the first mounting portion is lower than the thickness at other locations on the housing. A second mounting portion is provided on the first mounting portion, and the circuit board assembly is disposed within the second mounting portion. Compared to disposing the circuit board assembly at a location on the housing other than the first mounting portion, this can reduce the impact of the circuit board assembly on the space occupancy of the housing assembly, reduce the space occupancy of the housing assembly, and reduce the probability of interference between the housing assembly and other electrical devices in the electronic device.

[0113] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0114] refer to Figure 1 、 Figure 2 and Figure 3 The embodiment of the present application provides a housing assembly 100, which may include a housing 110. The housing 110 has a receiving cavity 1101, which is suitable for receiving the pole core 210 assembly 200, a first mounting portion 110a, which is sunken toward the receiving cavity 1101, and a second mounting portion 110b is provided on the first mounting portion 110a, which is sunken toward the receiving cavity 1101 and is suitable for receiving the circuit board assembly 140.

[0115] The housing 110 may be approximately cylindrical, rectangular or cube-shaped. Figure 2 The first end 111 and the second end 112 are opposite to each other in the X direction.

[0116] In some embodiments, the first mounting portion 110a may be an inclined portion inclined toward the accommodating cavity 1101, or the first mounting portion 110a may be a stepped structure sunken toward the accommodating cavity 1101, or the first mounting portion 110a may be a groove-shaped structure.

[0117] In some embodiments, the second mounting portion 110b may be a stepped structure that is sunken toward the accommodating cavity 1101 , or the second mounting portion 110b may be a groove-shaped structure.

[0118] The present application provides a housing assembly 100. The housing assembly 100 is provided with a first mounting portion 110a that is recessed toward an accommodating cavity 1101, thereby making the thickness of the housing 110 at the first mounting portion 110a lower than the thickness at other locations on the housing 110. A second mounting portion 110b is provided on the first mounting portion 110a, and a circuit board assembly 140 is disposed within the second mounting portion 110b. Compared to disposing the circuit board assembly 140 at a location on the housing 110 other than the first mounting portion 110a, this arrangement can reduce the impact of the circuit board assembly 140 on the space occupancy of the housing assembly 100, reduce the space occupancy of the housing assembly 100, and reduce the probability of interference between the housing assembly 100 and other electrical devices in the electronic device.

[0119] refer to Figure 3 In some embodiments, the first mounting portion 110 a may be an inclined portion 113 , and the inclined portion 113 is inclined toward the accommodating cavity 1101 .

[0120] The outer surface of the housing 110 has an inclined portion 113 that is inclined toward the internal receiving cavity of the housing 110. The inclined portion 113 can be located near the first end 111. This allows the thickness of the housing 110 at the inclined portion 113 to be smaller than the thickness at other locations on the housing 110, and allows the electrical devices in the electronic device to be avoided at the location on the housing 110 corresponding to the inclined portion 113.

[0121] Thus, by providing the housing 110 with an inclined portion 113 that is inclined toward the accommodating cavity 1101 of the housing 110, the thickness of the housing 110 at the inclined portion 113 is made thinner than the thickness at other locations on the housing 110. Providing the inclined portion 113 near one end of the housing 110 facilitates installation of the circuit board assembly 140 on the housing 110 and facilitates the extraction of the circuit board assembly 140 from the housing assembly 100, thereby improving assembly efficiency between the housing assembly 100 and the circuit board assembly 140.

[0122] It is understandable that if the housing 110 has a Figure 2If the shell 110 is composed of two opposite walls in the Y direction, the thickness of the shell 110 can be the distance between the surface of one side wall facing the outside of the shell 110 and the surface of the other side wall facing the outside of the shell 110 in the first direction of the shell 110.

[0123] refer to Figure 1 and Figure 2 In some embodiments, in a first direction of the housing 110 (eg Figure 2 In the Y direction (in the Y direction), the thickness of the housing 110 at the inclined portion 113 gradually decreases from the second end 112 to the first end 111 of the housing 110. The inclined portion 113 can extend all the way to the first end 111 of the housing 110.

[0124] Based on the above embodiment, the thickness of the housing 110 is smallest at the inclined portion 113 near the first end 111. The difference in thickness between the thinnest portion of the housing 110 at the inclined portion 113 and the rest of the housing 110 excluding the inclined portion 113 may be greater than or equal to 0.1 mm.

[0125] In this way, by gradually reducing the thickness of the shell 110 at the inclined portion 113 along the direction from the second end 112 to the first end 111, the processing of the shell 110 can be facilitated, the processing difficulty of the shell 110 can be reduced, and the processing efficiency of the shell 110 can be improved.

[0126] Specifically, the thickness of the housing 110 is greater than or equal to 1.8 mm and less than or equal to 6.5 mm. For example, the thickness of the housing 110 is one of 2.0 mm, 2.3 mm, 3.1 mm, 3.8 mm, 4.3 mm, 4.9 mm, 5.2 mm, and 6.2 mm.

[0127] Since this embodiment is applied to an ultra-thin battery, the thickness of the housing 110 is preferably greater than or equal to 1.8 mm and less than or equal to 3.5 mm.

[0128] refer to Figure 3 In some embodiments, the housing 110 may include a housing body 119 and a first cover plate 116. The first mounting portion 110a is located on the first cover plate 116. The housing body 119 is formed with a receiving cavity 1101. The receiving cavity 1101 has a first opening 1141. The receiving cavity 1101 is suitable for receiving the pole core 210 assembly 200. The first cover plate 116 is suitable for covering the first opening 1141 and is connected to the housing body 119 to form the receiving cavity 1101. The first cover plate 116 includes a straight portion 1161 and an inclined portion 113 connected to the straight portion 1161. The inclined portion 113 is inclined relative to the straight portion 1161 toward the receiving cavity 1101.

[0129] refer to Figure 1 and Figure 2In some embodiments, the housing body 119 may include a frame 118 and a second cover 117, with the first cover 116 connected to the second cover 117 via the frame 118. The frame 118 has a first opening 1141 and a second opening (not shown). The first cover 116 covers the first opening 1141, and the second cover 117 covers the second opening. The first cover 116, the second cover 117, and the frame 118 can together form the housing 110.

[0130] The first cover plate 116 and the second cover plate 117 can be used to accommodate the pole core assembly 200. In this way, the assembly of the housing 110 and the independent maintenance and replacement of the first cover plate 116 and the second cover plate 117 can be facilitated.

[0131] The first cover plate 116 may include an inclined portion 113 and a straight portion 1161 parallel to the second cover plate 117 . One end of the inclined portion 113 is connected to the straight portion 1161 , and the other end is inclined toward the second cover plate 117 and extends to the first end 111 .

[0132] The surface of the first cover plate 116 facing away from the second cover plate 117 may be the outer surface of the first cover plate 116, and the surface of the second cover plate 117 facing away from the first cover plate 116 may be the outer surface of the second cover plate 117. The thickness of the housing 110 may be the distance between the outer surface of the first cover plate 116 and the outer surface of the second cover plate 117.

[0133] Therefore, the thickness of the housing 110 at the inclined portion 113 may be, in the first direction (eg Figure 2 The thickness of the housing 110 at other locations except the inclined portion 113 can be, in the first direction (e.g., Figure 2 The distance between the outer surface of the straight portion 1161 and the outer surface of the second cover plate 117 in the Y direction.

[0134] The distance between the outer surface of the inclined portion 113 and the outer surface of the second cover plate 117 may be smaller than the distance between the outer surface of the straight portion 1161 and the outer surface of the second cover plate 117 .

[0135] refer to Figure 1 and Figure 2 In some embodiments, the distance between the inclined portion 113 and the second cover plate 117 gradually decreases along the direction from the second end 112 to the first end 111. Thus, the distance between the outer surface of the inclined portion 113 and the outer surface of the second cover plate 117 can be gradually reduced along the direction from the second end 112 to the first end 111, thereby reducing the difficulty in manufacturing the inclined portion 113, and also reducing the difficulty in manufacturing the second cover plate 117 and the housing assembly 10.

[0136] In some embodiments, the end of the inclined portion 113 facing away from the straight portion 1161 can extend to the first end 111 of the housing 110. Figure 2 In the Y direction), the difference between the distance between the outer surface of the inclined portion 113 at the first end 111 and the outer surface of the second cover plate 117 and the distance between the outer surface of the straight portion 1161 and the outer surface of the second cover plate 117 can be greater than or equal to 0.1 mm.

[0137] refer to Figure 2 In some embodiments, the second mounting portion 110b is a recessed portion 114 that is recessed toward the accommodating cavity 1101. The recessed portion 114 is adapted to accommodate the circuit board assembly 140. Along the first direction, the distance between the bottom wall of the recessed portion 114 and the second cover plate 117 is ≥ 0.07 mm. For example, the distance between the bottom wall of the recessed portion 114 and the second cover plate 117 may be one of 0.07 mm, 0.1 mm, 0.13 mm, 0.16 mm, and 0.2 mm. In this way, a sufficient distance can be provided between the bottom wall of the recessed portion 114 and the second cover plate 117, facilitating the installation of components such as the tab 220, the first insulating member 330, and the second insulating member 340.

[0138] refer to Figure 1 and Figure 2 In some embodiments, the frame 118 may include a first side wall 1183, a second side wall 1184, a third side wall 1185, and a fourth side wall 1186. The first end 111 is located on the first side wall 1183, the second end 112 is located on the second side wall 1184, and the third side wall 1185 and the fourth side wall 1186 are respectively connected to the first side wall 1183 and the second side wall 1184. The third side wall 1185 and the fourth side wall 1186 each include a first frame 1181 and a second frame 1182.

[0139] In some embodiments, the outer surface area of ​​the first cover plate 116 can be larger than the outer surface area of ​​any of the first side wall 1183 , the second side wall 1184 , the third side wall 1185 and the fourth side wall 1186 , and the first mounting portion 110a can be set on the first cover plate 116 .

[0140] The first frame 1181 is connected to the inclined portion 113, and the inclined portion 113 is covered by the first frame 1181. The second frame 1182 is connected to the straight portion 1161, and the straight portion 1161 is covered by the second frame 1182. In the first direction of the housing 110, the width of the first frame 1181 is less than or equal to the width of the second frame 1182.

[0141] refer to Figure 1 and Figure 2In some embodiments, if the distance from the outer surface of the inclined portion 113 to the outer surface of the second cover plate 117 gradually decreases along the direction from the second end 112 to the first end 111 of the shell 110, the width of the first frame 1181 in the first direction of the shell 110 also gradually decreases along the direction away from the second frame 1182, that is, the width of the first frame 1181 in the first direction of the shell 110 gradually decreases along the direction from the second end 112 to the first end 111.

[0142] refer to Figure 2 and Figure 3 In some embodiments, the first frame 1181 includes a first edge 1187 connected to the inclined portion 113, and the second frame 1182 includes a second edge 1188 connected to the straight portion 1161. The first edge 1187 and the second edge 1188 have an angle (such as Figure 2 The included angle α is greater than or equal to 165° and less than or equal to 179°. For example, the included angle can be one of 166°, 168°, 169°, 172°, 175°, and 178°.

[0143] In this way, by limiting the range of the included angle to greater than or equal to 165° and less than or equal to 179°, the cover plate bending process can be facilitated while ensuring that sufficient thickness space is provided for the circuit board assembly 140, and the welding process is not affected.

[0144] refer to Figure 2 and Figure 3 In some embodiments, in the first direction, the dimension of the first sidewall 1183 is H1, and the dimension of the second sidewall 1184 is H2, where H1:H2=0.70-0.95, where H1 and H2 are expressed in the same unit. For example, the values ​​of H1:H2 can be one of 0.7, 0.8, 0.90, 0.92, 0.94, and 0.95.

[0145] In this way, by limiting the ratio of H1 to H2 to a range of greater than or equal to 0.7 and less than or equal to 0.95, it is possible to ensure that sufficient thickness space is provided for the circuit board assembly 140 to facilitate the installation of batteries and circuit board assemblies 140 of different sizes.

[0146] refer to Figure 2 and Figure 3 In some embodiments, the depth of the lower recess 114 is H3, the dimension of the second sidewall 1184 in the first direction is H2, and H3:H2=0.3-0.7, where H3 and H2 are expressed in the same unit. For example, the value of H3:H2 can be one of 0.3, 0.4, 0.5, 0.6, 0.654, and 0.7.

[0147] In this way, the circuit board assembly 140 can be completely accommodated in the lower recess 114 , thereby reducing the probability of the circuit board assembly 140 being damaged and increasing the service life of the circuit board assembly 140 .

[0148] refer to Figures 1 to 4 In some embodiments, the first side wall 1183 is connected to the third side wall 1185 by an arc edge, and / or the third side wall 1185 is connected to the second side wall 1184 by an arc edge, and / or the second side wall 1184 is connected to the fourth side wall 1186 by an arc edge, and / or the fourth side wall 1186 and the first side wall 1183 are connected by an arc edge.

[0149] In this way, compared with the right-angle edge connection method between the first side wall 1183 and the third side wall 1185, by connecting the first side wall 1183 and the third side wall 1185 through an arc edge, the stress at the connection between the first side wall 1183 and the third side wall 1185 can be reduced, thereby improving the structural stability of the shell assembly 100.

[0150] Compared with the right-angle edge connection method between the second side wall 1184 and the fourth side wall 1186, by connecting the second side wall 1184 and the fourth side wall 1186 through an arc edge, the stress at the connection between the second side wall 1184 and the fourth side wall 1186 can be reduced, thereby improving the structural stability of the shell assembly 100.

[0151] refer to Figure 3 and Figure 4 In some embodiments, the inclined portion 113 can be disposed on the surface with the largest surface area of ​​the housing 110. Therefore, the inclined portion 113 can be disposed on the first cover plate 116, which can substantially reduce the volume of the housing 110 and help reduce the space occupancy of the housing assembly 100.

[0152] refer to Figure 3 and Figure 4 In some embodiments, the lower recess 114 is provided with a liquid injection hole 115 extending through the bottom wall. By arranging the liquid injection hole 115 in the lower recess 114, and by ensuring that the surface of the lower recess 114 is the surface with the largest surface area on the housing 110, the size and flow area of ​​the liquid injection hole 115 are not affected when the liquid injection hole 115 is arranged on a surface with a smaller surface area on the housing 110, thereby ensuring efficient and smooth liquid injection.

[0153] refer to Figure 3 and Figure 4 The lower recess is provided with a pole hole that passes through the bottom wall. Thus, by arranging the pole hole in the lower recess 114, and by making the surface of the lower recess 114 the largest surface area of ​​the housing 110, it is possible to avoid current overflow and load capacity on the pole assembly 300 due to the surface area of ​​the pole hole being too small.

[0154] refer to Figure 3 and Figure 4 The present application also provides a battery, which may include the housing assembly 100 described above. The battery may be a thin hard-shell battery, with the housing 110 being made of steel or a titanium alloy. In one embodiment, the housing 110 is preferably made of a titanium alloy, which helps reduce the weight of the overall structure and provides high strength. The titanium alloy has good thermal conductivity, facilitating the welding of the housing 110. During welding, the welding process has minimal thermal impact on the welded area, preventing deformation, and facilitating heat dissipation from the battery.

[0155] The battery provided in the embodiment of the present application can reduce the overall volume of the battery by using the above-mentioned housing assembly 100, and can enable the battery to avoid components in the electronic device at the inclined portion 113, thereby reducing the space occupancy of the battery in the electronic device and improving the practicality of the battery.

[0156] refer to Figure 3 and Figure 4 In some embodiments, the battery may further include a core assembly 200 disposed within the housing 110 within the outer shell assembly 100. The core assembly 200 is installed within the housing 110, which protects the core assembly 200 within the battery and reduces the chance of damage to the core assembly 200. The core assembly 200 can be electrically connected to the circuit board assembly 140 to facilitate transmission of electrical energy from the core assembly 200 to external electrical devices.

[0157] Since the housing 110 has the first mounting portion 110 a , which may be the inclined portion 113 as described above, the internal space of the housing 110 corresponding to the inclined portion 113 is smaller than the internal space of the housing 110 at other positions.

[0158] The core assembly 200 may include a core 210 and a plurality of tabs 220. The core 210 is disposed in a receiving cavity 1101 within the housing 110. The core 210 can be disposed within the housing 110 at positions corresponding to the remaining portions except for the inclined portion 113. In some examples, in a first direction, the orthographic projection of the core 210 does not overlap with the orthographic projection of the inclined portion 113.

[0159] In this way, the volume of the pole core 210 can be prevented from being affected by the space inside the shell 110 corresponding to the inclined portion 113 being smaller than the space inside the shell 110 at other positions, thereby ensuring that the energy density of the battery is not affected.

[0160] In some embodiments, the pole core 210 may be a wound pole core or a laminated pole core, which is not specifically limited in this application.

[0161] Each tab 220 is connected to one end of the electrode core 210 facing the inclined portion 113. Adjacent tabs 220 can be spaced apart, and each tab 220 is disposed corresponding to the inclined portion 113. In some embodiments, there can be two, three, or more tabs 220. The multiple tabs 220 can include either positive tabs 220a or negative tabs 220b, or the multiple tabs 220 can include both positive tabs 220a and negative tabs 220b.

[0162] refer to Figure 3 and Figure 4 In some embodiments, the second mounting portion 110b may be a lower recess 114, and the plurality of tabs 220 may include positive tabs 220a and negative tabs 220b arranged in an alternating pattern. The lower recess 114 defines a post hole extending through the bottom wall. The battery may further include a post assembly 300 disposed within the lower recess 114 of the housing assembly 100, and the post assembly 300 extends through the post hole. One end of the post assembly 300 is electrically connected to the circuit board assembly 140 of the housing assembly 100, while the other end passes through the bottom wall of the lower recess 114 and is electrically connected to the positive tab 220a. The other end of the positive tab 220a can be electrically connected to the positive electrode of the electrode core 210.

[0163] In some embodiments, the electrode assembly 300 may include a positive electrode assembly 300a and a negative electrode assembly (not shown). One end of the positive electrode assembly 300a is adapted to be electrically connected to the circuit board assembly 140, and the other end of the positive electrode assembly 300a is electrically connected to the positive electrode tab 220a. One end of the negative electrode assembly is adapted to be electrically connected to the circuit board assembly 140, and the other end of the negative electrode assembly is electrically connected to the negative electrode tab 220b.

[0164] In other embodiments, if the pole assembly 300 is a negative pole assembly, one end of the negative pole assembly is suitable for electrically connecting to the circuit board assembly 140, the other end of the negative pole assembly is electrically connected to the negative pole tab 220b, and the positive pole tab 220a is electrically connected to the inner wall of the shell 110.

[0165] refer to Figure 3 and Figure 4 If the electrode assembly 300 is a positive electrode assembly 300a, one end of the positive electrode assembly 300a is suitable for electrically connecting to the circuit board assembly 140, the other end of the positive electrode assembly 300a is electrically connected to the positive electrode tab 220a, and the negative electrode tab 220b is electrically connected to the inner wall of the housing 110. For example, the end of the negative electrode tab 220b facing away from the electrode core 210 can be connected to the inner wall of the housing 110 corresponding to the inclined portion 113.

[0166] In this way, by arranging the pole assembly 300 in the lower recess 114 , the influence of the pole assembly 300 on the total thickness of the housing assembly 100 can be reduced, thereby preventing the pole assembly 300 from increasing the space occupancy of the housing assembly 100 and thereby reducing the space occupancy of the battery.

[0167] In some embodiments, if the circuit board assembly 140 has a positive electrode and a negative electrode, the terminal assembly 300 can be electrically connected to the positive electrode of the circuit board assembly 140 , and the negative electrode of the circuit board assembly 140 can be electrically connected to the housing 110 .

[0168] refer to Figure 3 and Figure 4 In some embodiments, the pole assembly 300 may include a conductive connecting piece 310 and a pole 320 , and the pole 320 may be a positive pole 320 a .

[0169] The conductive connecting piece 310 is disposed on the second mounting portion 110b. The second mounting portion 110b can be a recessed portion 114, with the bottom wall of the recessed portion 114 facing one side of the housing 110. The conductive connecting piece 310 is electrically connected to the positive electrode tab 220a. One end of the positive electrode post 320a is electrically connected to the circuit board assembly 140, while the other end passes through the recessed portion 114 and is electrically connected to the conductive connecting piece 310. The positive electrode post 320a can be a rivet, which passes through the housing 110 and is electrically connected to the conductive connecting piece 310 through riveting.

[0170] refer to Figure 3 and Figure 4 In some embodiments, the pole assembly 300 may further include a first insulating member 330 and a second insulating member 340. If the second mounting portion 110b is a recessed portion 114, the first insulating member 330 is disposed between the pole 320 and the bottom wall of the recessed portion 114, and can be used to insulate the pole 320 from the housing 110 corresponding to the bottom wall of the recessed portion 114. The second insulating member 340 is disposed on the side of the conductive connecting piece 310 facing the recessed portion 114, and can be used to insulate the conductive connecting piece 310 from the housing 110. The first insulating member 330 and the second insulating member 340 can improve the insulation between the pole assembly 300 and the housing 110, thereby improving the safety of the battery.

[0171] In some embodiments, the pole 320 can pass through the first insulating member 330 , the housing 110 , and the second insulating member 340 to be electrically connected to the conductive connecting piece 310 .

[0172] refer to Figure 3 and Figure 4In some embodiments, the battery may further include a filling body 400 , which is disposed in the accommodating cavity 1101 of the shell 110 . The filling body 400 is disposed corresponding to the second mounting portion 110 b and is used to support the bottom wall of the recessed portion 114 .

[0173] In this way, by providing the filling body 400 to support the bottom wall of the lower concave portion 114 , the probability of the lower concave portion 114 being deformed by collision can be reduced, and the flatness of the outer surface of the battery can be improved.

[0174] In the first direction, the orthographic projection of the concave portion 114 can completely fall within the orthographic projection of the filling body 400. In this way, the filling body 400 can fully support the concave portion 114, thereby improving the supporting effect of the filling body 400 on the bottom wall of the concave portion 114.

[0175] refer to Figure 3 and Figure 4 In some embodiments, the second mounting portion 110b may be a recessed portion 114 having a lengthwise direction (eg Figure 3 The third end 1142 and the fourth end 1143 are opposite in the Z direction (in the middle), and the positive electrode tab 220a is closer to the third end 1142 than the negative electrode tab 220b.

[0176] In the length direction of the lower recess 114 , one end of the filling body 400 is close to the negative electrode tab 220 b and faces the positive electrode tab 220 a , and the other end of the filling body 400 extends to the third end 1142 .

[0177] In this way, the filling body 400 can avoid the positive electrode tab 220 a while ensuring the support stability of the filling body 400 on the lower recess 114 , thereby preventing the filling body 400 from squeezing the positive electrode tab 220 a and the pole assembly 300 .

[0178] In other embodiments, the positive electrode tab 220a is electrically connected to the positive electrode column assembly 300a, and the negative electrode tab is electrically connected to the negative electrode column assembly. In the length direction of the second mounting portion 110b, one end of the filling body 400 is close to the side of the negative electrode tab facing the positive electrode tab 220a, and the other end of the filling body 400 is close to the side of the positive electrode tab 220a facing the negative electrode tab.

[0179] refer to Figure 3 and Figure 4In some embodiments, the battery may further include a sealing plug 500 and a sealing cover 600. A liquid injection hole 115 is formed through the bottom wall of the lower recess 114. The sealing plug 500 is used to seal the liquid injection hole 115. The sealing cover 600 is disposed on the sealing plug 500, covering the side of the sealing plug 500 facing away from the liquid injection hole 115. The sealing plug 500 can be disposed within the liquid injection hole 115 by means of an interference fit. The sealing cover 600 is covered on the sealing plug 500 by bonding or welding to improve the sealing effect.

[0180] In this way, by opening the injection hole 115 on the bottom wall of the lower recess 114, the impact of the sealing plug 500 and the sealing cover 600 on the volume of the shell 110 can be reduced, thereby preventing the sealing plug 500 and the sealing cover 600 from increasing the space occupancy rate of the shell 110.

[0181] refer to Figure 3 and Figure 4 In some embodiments, the filler body 400 has a first direction (eg Figure 3 The first avoidance portion 410 corresponds to the liquid injection hole 115 in the Y direction, and there is a gap between the bottom of the first avoidance portion 410 and the liquid injection hole 115.

[0182] In this way, by providing the first avoidance portion 410 on the filling body 400 , the filling body 400 can be prevented from blocking the liquid injection hole 115 , and liquid can be easily injected into the housing 110 through the liquid injection hole 115 .

[0183] In some embodiments, the outline of the notch of the first avoiding portion 410 can be circular, rectangular, or elliptical. The first avoiding portion 410 can penetrate the filling body 400 in the thickness direction of the filling body 400.

[0184] refer to Figure 3 and Figure 4 In some embodiments, in the first direction, the orthographic projection of the injection hole 115 is completely located within the first avoidance portion 410. In this way, it is possible to avoid affecting the injection efficiency due to the filling body 400 on the outer periphery of the notch of the first avoidance portion 410 blocking the injection hole 115.

[0185] refer to Figure 3 and Figure 4 In some embodiments, the first avoidance portion 410 is circumferentially arranged along the inner edge of the liquid injection hole 115 , and the filling body 400 is supported on the inner wall of the shell 110 on the outer peripheral side of the liquid injection hole 115 .

[0186] In this way, the filling body 400 can provide 360° support to the shell 110 near the injection hole 115 in the circumferential direction, thereby improving the support stability of the filling body 400 on the shell 110 near the injection hole 115 and reducing the probability of sealing welding failure due to deformation of the shell 110 near the injection hole 115 during the injection or laser welding sealing process.

[0187] In other embodiments, the first avoidance portion 410 has a through hole or a third opening 411 on the side facing the pole core 210 that communicates with the interior of the accommodating cavity 1101. This facilitates the flow of liquid injected from the injection hole 115 to the pole core 210 in the pole core assembly 200, thereby improving injection efficiency.

[0188] refer to Figure 3 and Figure 4 In some embodiments, the tab 220 has a positive tab 220a and a negative tab 220b arranged at intervals, the negative tab 220b is electrically connected to the housing 110, and the filler 400 has a first direction (such as Figure 3 The second relief portion 420 (in the middle Y direction) corresponds to the negative electrode tab 220b. The second relief portion 420 is used to accommodate the negative electrode tab 220b in the first direction. The second relief portion 420 can penetrate the filling body 400 in the thickness direction of the filling body 400. This allows the second relief portion 420 to fully accommodate the negative electrode tab 220b, thereby improving the accommodation effect of the second relief portion 420.

[0189] refer to Figure 3 and Figure 4 In some embodiments, in the first direction, the depth of the second avoidance portion 420 is greater than or equal to the thickness of the negative electrode tab 220 b , so that the second avoidance portion 420 can completely accommodate the tab 220 .

[0190] refer to Figure 3 and Figure 4 In other embodiments, the positive electrode tab 220a is electrically connected to the housing 110, and the filler body 400 has a third relief portion (not shown) corresponding to the positive electrode tab 220a. The positive electrode tab 220a is connected to the bottom wall of the second mounting portion 110b via the third relief portion. In the thickness direction of the bottom wall of the second mounting portion 110b, the depth of the third relief portion is greater than or equal to the thickness of the positive electrode tab 220a.

[0191] In some embodiments, the filling body 400 may include a first portion and a second portion, the first portion and the second portion extending along the length direction of the lower recess 114 , the first portion having a first avoidance portion 410 , and the second portion having a second avoidance portion 420 .

[0192] The first part and the second part may be an integrated structure, or the first part and the second part may be two independent structures, and the first part and the second part may be connected by bonding.

[0193] refer to Figure 3 and Figure 4 In some embodiments, the filler 400 is an insulating structure, which can prevent a short circuit from occurring when the filler 400 contacts the negative electrode tab 220b or the positive electrode tab 220a, thereby improving the safety of the battery.

[0194] The filler 400 is made of polypropylene or acrylonitrile-butadiene-styrene copolymer. The filler 400 can be formed by injection molding or by 3D printing.

[0195] refer to Figure 3 and Figure 4 In some embodiments, the battery may further include an insulating member 700, which is disposed on the inner wall of the shell 110 opposite to the first mounting portion 110a. The insulating member 700 is used to insulate the tab 220 from the inner wall of the shell 110 opposite to the first mounting portion 110a.

[0196] In this way, the insulating member 700 can insulate the positive electrode tab 220a from the corresponding wall of the shell 110, and the insulating member 700 can also insulate the negative electrode tab 220b from the corresponding wall of the shell 110, thereby improving the safety of the battery.

[0197] An embodiment of the present application provides a battery assembly, which may include a circuit board assembly 140 and the aforementioned battery. Circuit board assembly 140 is at least partially disposed within second mounting portion 110b, which may be a recessed portion 114. A portion of circuit board assembly 140 is capable of extending from recessed portion 114 through inclined portion 113 on housing 110 to the exterior of housing 110.

[0198] refer to Figure 1 and Figure 2 The circuit board assembly 140 includes a first circuit board 120 and a second circuit board 130 , and the first circuit board 120 is disposed on the first mounting portion 110 a .

[0199] By arranging the first circuit board 120 on the first mounting portion 110a, the thickness of the first mounting portion 110a and the rest of the housing 110 have a difference, and the first circuit board 120 can be arranged on the first mounting portion 110a by utilizing the difference, so that the first circuit board 120 can be arranged in the first direction (such as Figure 2In the Y direction in the drawing, the sum of the thicknesses of the first circuit board 120 and the shell 110 at the first mounting portion 110a can be reduced, thereby reducing the influence of the first circuit board 120 on the total thickness of the shell 110, and avoiding the first circuit board 120 occupying additional space on the shell 110, which leads to an increase in the thickness of the shell assembly 100. Therefore, in the embodiment of the present application, the first circuit board 120 is arranged on the first mounting portion 110a, which can reduce the space occupancy rate of the shell assembly 10 and facilitate the thinning of the shell assembly 10.

[0200] refer to Figure 1 and Figure 2 In some embodiments, the first mounting portion 110 a has a second mounting portion 110 b that is sunken toward the interior of the housing 110 , and the first circuit board 120 is disposed in the second mounting portion 110 b .

[0201] In some embodiments, the second mounting portion 110b may be a recessed portion 114, the bottom surface of which may be a flat surface or an arcuate surface. The recessed portion 114 may be a groove, the bottom surface of which may be a flat surface. The first circuit board 120 may be disposed within the groove, and the first circuit board 120 may be disposed at the bottom of the groove.

[0202] In this way, by setting the first mounting portion 110a near the first end 111 in the second direction, the thickness of the shell 110 at the first mounting portion 110a is lower than the thickness at other positions on the shell 110, and the second mounting portion 110b is set on the first mounting portion 110a, and the first circuit board 120 is set in the second mounting portion 110b. Compared with setting the first circuit board 120 at other positions on the shell 110 except the first mounting portion 110a, the influence of the first circuit board 120 on the total thickness of the shell assembly 10 can be reduced, and the space occupancy rate of the shell assembly 100 can be reduced.

[0203] refer to Figure 1 and Figure 2 In some embodiments, the lower recess 114 has a notch 1144, and the first circuit board 120 does not protrude from the notch 1144 of the lower recess 114. The plane of the outward-facing surface of the first circuit board 120 can be flush with the plane of the notch 1144, or the outward-facing surface of the first circuit board 120 can be lower than the plane of the notch 1144.

[0204] In this way, by preventing the first circuit board 120 from protruding from the notch 1144 of the lower recess 114 , the first circuit board 120 can be prevented from increasing the total thickness of the housing assembly 10 , thereby reducing the space occupancy of the housing assembly 10 .

[0205] refer to Figure 1 and Figure 2In some embodiments, the housing assembly 100 may further include a second circuit board 130 , which may be a flexible circuit board. This improves the flexibility of the second circuit board 130 , facilitates bending of the second circuit board 130 , and facilitates assembly, thereby reducing the chance of breakage or damage to the second circuit board 130 .

[0206] One end of the second circuit board 130 is electrically connected to the first circuit board 120. The other end of the second circuit board 130 extends from the first mounting portion 110a to the exterior of the housing 110. The portion of the second circuit board 130 extending outside the housing 110 can be used to connect to the electronic device's electrical components. When the second circuit board 130 extends outside the housing 110, a portion of the second circuit board 130 is located on the surface of the first mounting portion 110a.

[0207] Thus, in the first direction (eg Figure 2 Since the thickness of the housing 110 at the first mounting portion 110a is less than the thickness at other locations on the housing 110, compared to extending the second circuit board 130 from a location other than the first mounting portion 110a, the impact of the second circuit board 130 on the total thickness of the housing 110 is reduced, and the impact of the second circuit board 130 on the space occupancy in the first direction is reduced, thereby reducing the space occupancy of the battery in the electronic device.

[0208] refer to Figure 1 and Figure 2 In some embodiments, since one end of the second circuit board 130 needs to extend from the first mounting portion 110a to the outside of the shell 110 to connect to an electrical device, a portion of the second circuit board 130 can be located on the first mounting portion 110a. In the first direction, the sum of the thickness of the second circuit board 130 on the first mounting portion 110a and the thickness of the shell 110 at the first mounting portion 110a is less than or equal to the thickness of the rest of the shell 110.

[0209] In some embodiments, the second circuit board 130 can be led out of the housing 110 from a portion of the first mounting portion 110 a close to the first end 111 .

[0210] For example, the sum of the thickness of the housing 110 corresponding to the location of the second circuit board 130 on the first mounting portion 110a and the thickness of the second circuit board 130 can be less than the thickness of the remaining locations on the housing 110. In this way, the total thickness of the housing assembly 10 can be approximately equal to the thickness of the housing 110, thereby preventing the second circuit board 130 from affecting the total thickness of the housing assembly 10.

[0211] In this way, the portion of the second circuit board 130 located on the first mounting portion 110 a can be prevented from becoming the location with the greatest thickness on the housing assembly 10 , thereby preventing the second circuit board 130 from increasing the space occupancy of the housing assembly 10 .

[0212] In some embodiments, the thickness of the second circuit board 130 can be greater than or equal to 0.1 mm. If the thickness of the housing 110 at the first mounting portion 110 a gradually decreases from the second end 112 to the first end 111 of the housing 110, the thickness of the housing 110 at the location farthest from the second end 112 on the first mounting portion 110 a is the smallest, representing the thinnest location of the housing 110 at the first mounting portion 110 a. The difference between the thickness of this thinnest location and the thickness of the remaining locations on the housing 110 can be greater than or equal to 0.1 mm.

[0213] The present application also provides an electronic device, which may include an electrical device and the above-mentioned battery, wherein the battery is used to supply power to the electrical device. Alternatively, the electronic device may include the above-mentioned battery assembly.

[0214] The electronic device provided in the embodiment of the present application uses the above-mentioned battery to power an electrical device, thereby improving the space utilization inside the electronic device and facilitating the lightweight and miniaturized design of the electronic device.

[0215] In some embodiments, one or more of the above-mentioned batteries can be installed in an electronic device.

[0216] In some embodiments, the electronic device may be a smart wearable device, such as a smartwatch. The electronic device may also be a mobile phone, tablet computer, or laptop computer. The electronic device may also be a vehicle (e.g., a new energy vehicle, which may be an electric vehicle), and the battery may power electrical devices in the vehicle. For example, the battery may power electronic control components in the vehicle.

[0217] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0218] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0219] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0220] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0221] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0222] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A housing assembly, characterized in that: include: The shell has a housing cavity, the housing cavity is suitable for accommodating a pole core assembly, the shell has a first mounting portion, the first mounting portion is sunken toward the housing cavity, the first mounting portion has a second mounting portion, the second mounting portion is sunken toward the housing cavity, and the second mounting portion is suitable for accommodating a circuit board assembly.

2. The housing assembly according to claim 1, wherein: The first mounting portion has an inclined portion, and the inclined portion is inclined toward the accommodating cavity.

3. The housing assembly according to claim 1, wherein: The housing comprises: a shell body having a first opening; The first cover plate is suitable for covering the first opening and is connected to the shell body to form the accommodating cavity. The first mounting portion is located on the first cover plate. The first cover plate includes a straight portion and an inclined portion connected to the straight portion. The inclined portion is inclined relative to the straight portion toward the accommodating cavity.

4. The housing assembly according to claim 3, wherein: The shell body has a first end and a second end opposite to each other along a second direction, and the inclined portion is located on a side of the straight portion close to the first end.

5. The housing assembly according to claim 4, wherein: The shell body includes a frame body and a second cover plate. The frame body has the first opening and the second opening arranged opposite to each other. The first cover plate is suitable for covering the first opening, and the second cover plate is suitable for covering the second opening.

6. The housing assembly according to claim 5, wherein: The straight portion is parallel to the second cover plate; One end of the inclined portion is connected to the straight portion, and the other end is connected to the first end.

7. The housing assembly according to claim 6, wherein: The second mounting portion is provided on the inclined portion. The second mounting portion is a concave portion sunken toward the accommodating cavity. The concave portion is suitable for accommodating the circuit board assembly.

8. The housing assembly according to claim 7, wherein: Along the first direction, the distance between the bottom wall of the lower recess and the second cover plate is ≥0.07 mm.

9. The housing assembly according to claim 7, wherein: The lower recess is provided with a pole hole penetrating through the bottom wall.

10. The housing assembly according to claim 7, wherein: The lower concave portion is provided with a liquid injection hole which passes through the bottom wall.

11. The housing assembly according to claim 5, wherein: The frame includes a first side wall, a second side wall, a third side wall and a fourth side wall, the first end is located on the first side wall, the second end is located on the second side wall, and the third side wall and the fourth side wall are connected to both ends of the first side wall and the second side wall respectively; The third side wall and the fourth side wall each include: a first frame, connected to the inclined portion correspondingly; a second frame, connected to the straight portion correspondingly; In a thickness direction of the straight portion, a size of the first frame is smaller than or equal to a size of the second frame.

12. The housing assembly according to claim 11, wherein: In the thickness direction of the straight portion, a size of the first frame gradually decreases from the second end to the first end.

13. The housing assembly according to claim 12, wherein: The first frame includes a first edge connected to the inclined portion, the second frame includes a second edge connected to the straight portion, and an angle is formed between the first edge and the second edge, and the angle ranges from greater than or equal to 165° to less than or equal to 179°.

14. The housing assembly according to claim 11, wherein: In the thickness direction of the straight portion, a size of the first side wall is H1, a size of the second side wall is H2, H1:H2=0.70-0.95, wherein H1 and H2 are measured in the same unit.

15. The housing assembly according to claim 11, wherein The second mounting portion is a recessed portion sunken toward the accommodating cavity, the depth of the recessed portion is H3, the dimension of the second side wall in the thickness direction of the straight portion is H2, and H3:H2=0.3-0.7, wherein H3 and H2 are measured in the same unit.

16. The housing assembly according to claim 11, wherein: The first side wall and the third side wall are connected by an arc edge, and / or the third side wall and the second side wall are connected by an arc edge, and / or the second side wall and the fourth side wall are connected by an arc edge, and / or the fourth side wall and the first side wall are connected by an arc edge.

17. The housing assembly according to claim 11, wherein: The area of ​​the outer surface of the first cover plate is greater than the area of ​​the outer surface of any of the first side wall, the second side wall, the third side wall, and the fourth side wall.

18. The housing assembly according to any one of claims 1 to 17, wherein: The shell is made of steel or titanium alloy.

19. A battery, characterized in that: include: The housing assembly according to any one of claims 1 to 18; The pole core assembly is accommodated in the accommodating cavity.

20. The battery according to claim 19, characterized in that The pole core assembly includes: A pole core is disposed in the accommodating cavity; The pole tab is connected to one side of the pole core close to the first mounting portion on the shell of the housing assembly along the second direction.

21. The battery according to claim 20, characterized in that The second mounting portion is provided with a pole hole penetrating through the bottom wall. The battery further comprises a pole assembly, and the pole assembly passes through the pole hole.

22. The battery according to claim 21, characterized in that The tabs include a positive tab and a negative tab that are spaced apart. The pole assembly includes a positive pole assembly and a negative pole assembly, one end of the positive pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the positive pole assembly is electrically connected to the positive pole tab; one end of the negative pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the negative pole assembly is electrically connected to the negative pole tab.

23. The battery according to claim 21, characterized in that The tabs include a positive tab and a negative tab that are spaced apart. The pole assembly is a positive pole assembly, one end of the positive pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the positive pole assembly is electrically connected to the positive electrode tab; The negative electrode tab is electrically connected to the inner wall of the shell, or, The pole assembly is a negative pole assembly, one end of the negative pole assembly is suitable for electrically connecting to a circuit board assembly, and the other end of the negative pole assembly is electrically connected to the negative electrode tab; The positive electrode tab is electrically connected to the inner wall of the shell.

24. The battery according to claim 21, characterized in that The pole assembly comprises: A conductive connecting piece is provided on a side of the bottom wall of the second mounting portion facing the accommodating cavity, and the conductive connecting piece is electrically connected to the tab; The pole has one end adapted to be electrically connected to the circuit board assembly, and the other end passing through the second mounting portion and electrically connected to the conductive connecting piece.

25. The battery according to claim 24, characterized in that The pole assembly further comprises: a first insulating member, disposed between the pole and the second mounting portion; The second insulating member is disposed between the conductive connecting piece and the second mounting portion.

26. The battery according to claim 22 or 23, characterized in that The battery further includes a filling body; The filling body is disposed in the accommodating cavity, and the filling body is disposed corresponding to the second mounting portion.

27. The battery according to claim 26, characterized in that The filling body is supported on the bottom wall of the second mounting portion.

28. The battery according to claim 26, characterized in that The second mounting portion is provided with a liquid injection hole penetrating through the bottom wall, and the filling body has a first avoidance portion corresponding to the liquid injection hole.

29. The battery according to claim 28, characterized in that The orthographic projection of the first avoiding portion along the first direction completely covers the orthographic projection of the liquid injection hole along the first direction.

30. The battery according to claim 29, characterized in that The first avoidance portion is a through hole or a third opening that penetrates along the thickness direction of the filling body, and the through hole or the third opening is used to connect the liquid injection hole and the accommodating cavity.

31. The battery according to claim 28, characterized in that The battery further comprises: A sealing plug, used to seal the liquid injection hole; A sealing cover is provided on a side of the sealing plug facing away from the accommodating cavity.

32. The battery according to claim 26, characterized in that The tabs include a positive tab and a negative tab that are spaced apart. The negative electrode tab is electrically connected to the housing, the filling body has a second avoidance portion corresponding to the negative electrode tab, and the negative electrode tab is connected to the bottom wall of the second mounting portion through the second avoidance portion; or The positive electrode tab is electrically connected to the shell, the filling body has a third avoidance portion corresponding to the positive electrode tab, and the positive electrode tab is connected to the bottom wall of the second mounting portion through the third avoidance portion.

33. The battery according to claim 32, characterized in that In the thickness direction of the bottom wall of the second mounting portion, the depth of the second avoidance portion is greater than or equal to the thickness of the negative electrode tab; or In the thickness direction of the bottom wall of the second mounting portion, the depth of the third avoidance portion is greater than or equal to the thickness of the positive electrode tab.

34. The battery according to claim 26, characterized in that The tabs have positive tabs and negative tabs that are spaced apart. The negative electrode tab is electrically connected to the housing, the second mounting portion has a third end and a fourth end opposite to each other in the length direction, the negative electrode tab is closer to the fourth end relative to the positive electrode tab, and along the length direction of the second mounting portion, one end of the filling body is closer to the positive electrode tab and faces the negative electrode tab, and the other end of the filling body extends to the fourth end; or The positive electrode tab is electrically connected to the housing, the second mounting portion has a third end and a fourth end opposite to each other in the length direction, the positive electrode tab is closer to the third end than the negative electrode tab, and along the length direction of the second mounting portion, one end of the filling body is closer to the negative electrode tab and faces the positive electrode tab, and the other end of the filling body extends to the third end; or The positive electrode tab is electrically connected to the positive electrode post assembly, and the negative electrode tab is electrically connected to the negative electrode post assembly. In the length direction of the second mounting portion, one end of the filling body is close to the negative electrode tab and faces the positive electrode tab, and the other end of the filling body is close to the positive electrode tab and faces the negative electrode tab.

35. The battery according to claim 26, characterized in that The filling body is an insulating structure; And / or, the filler is made of polypropylene or acrylonitrile-butadiene-styrene copolymer.

36. The battery according to claim 20, characterized in that The battery further includes an insulating member; The insulating member is provided on an inner wall of the housing opposite to the first mounting portion, and the insulating member is used to insulate the tab from the inner wall opposite to the first mounting portion.

37. A battery assembly, characterized in that: comprising a circuit board assembly and a battery as claimed in any one of claims 19 to 36; The circuit board assembly is at least partially disposed in the second mounting portion.

38. The battery assembly according to claim 37, wherein: The circuit board assembly includes a first circuit board, which is disposed in the second mounting portion and is electrically connected to the battery.

39. The battery assembly according to claim 38, wherein: The first circuit board does not protrude from the plane where the notch of the second mounting portion is located.

40. The battery assembly according to claim 38, wherein: The circuit board assembly further includes a second circuit board; One end of the second circuit board is electrically connected to the first circuit board, and the other end of the second circuit board extends outside the housing.

41. The battery assembly according to claim 40, characterized in that A portion of the second circuit board is located on a side of the first circuit board away from the bottom wall of the second mounting portion; The maximum thickness of the battery assembly corresponding to the first mounting portion in the first direction is less than or equal to the thickness of the remaining positions of the battery assembly in the first direction.

42. The battery assembly according to claim 40, wherein: The second circuit board is a flexible circuit board.

43. An electronic device, characterized in that: A device comprising an electric device, and a battery according to any one of claims 19 to 36, wherein the battery is used to power the electric device; Alternatively, a battery assembly as claimed in any one of claims 37 to 42.

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