Housing device, battery and electric appliance

Abstract

The application relates to the battery technical field and discloses a shell device, a battery and an electric equipment. The shell device comprises a box body and a mounting piece. The box body comprises a bottom wall, a surrounding wall, a first mounting part and an elastic part. The surrounding wall is connected to the edge of the bottom wall and surrounds the bottom wall to form an accommodation cavity which is open in a first direction and is used for accommodating a battery cell. The first mounting part is arranged on the bottom wall and defines a first mounting groove which is used for accommodating the end of the battery cell. The first mounting part is used for absorbing the tolerance of the battery cell in a second direction which is perpendicular or obliquely intersected with the first direction. The elastic part is arranged on the bottom wall and located in the first mounting groove. The mounting piece is covered on the box body and is used for limiting the battery cell in the first direction together with the elastic part. The elastic part is used for generating deformation to absorb the assembly tolerance of the battery cell. The application has the beneficial effect of improving the assembly efficiency and assembly yield of the battery.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to casing devices, batteries, and electrical equipment. Background Technology

[0002] Batteries typically consist of cells and a casing. The cells are housed within the casing. Some known batteries suffer from technical issues such as low production yields and high product costs. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned technical deficiencies and propose a casing device, battery and electrical equipment to solve the technical problems of low production yield and high product cost of batteries in the known technology.

[0004] To achieve the above-mentioned technical objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a housing device, including a housing and a mounting member. The housing includes a bottom wall, a surrounding wall, a first mounting portion, and an elastic portion. The surrounding wall connects to the edge of the bottom wall and forms a receiving cavity open along a first direction, the receiving cavity being used to receive a battery cell. The first mounting portion is disposed on the bottom wall and defines a first mounting groove for receiving an end of the battery cell. The first mounting portion is used to absorb tolerances of the battery cell along a second direction, the second direction being perpendicular to or obliquely intersecting the first direction. The elastic portion is disposed on the bottom wall and located within the first mounting groove. The mounting member covers the housing and is used to limit the battery cell along the first direction with the elastic portion. The elastic portion is used to deform to absorb assembly tolerances of the battery cell.

[0006] In some embodiments, the elastic portion and the bottom wall are integrally formed components.

[0007] In some embodiments, the elastic portion includes a connecting wall and a supporting wall, one end of the connecting wall being connected to the bottom wall and the other end of the connecting wall extending along a first direction, the supporting wall being connected to the other end of the connecting wall, a deformation gap being formed between the supporting wall and the bottom wall, the supporting wall being used to abut against the battery cell, and the supporting wall being configured to deform under the pressure of the battery cell to absorb the assembly tolerance of the battery cell.

[0008] In some embodiments, the edge of the mounting member is formed with a first snap-fit ​​portion, and the end of the enclosure away from the bottom wall is formed with a second snap-fit ​​portion, wherein the first snap-fit ​​portion and the second snap-fit ​​portion engage with each other.

[0009] In some embodiments, the edge of the mounting member is formed with a first clearance groove, the first latching portion extends from the first clearance groove along a first direction, the end of the first latching portion facing the bottom wall is formed with a first latch, and the first latch protrudes outward from the edge of the mounting member; the second latching portion protrudes from the inner surface of the enclosure wall, the second latching portion is received in the first clearance groove, and the first latching portion abuts against the surface of the second latching portion facing the bottom wall.

[0010] In some embodiments, the first mounting portion includes a plurality of first mounting walls, which are disposed around the elastic portion and form the first mounting groove; one end of the first mounting wall is connected to the bottom wall, and the other end of the first mounting wall is formed with a first limiting rib protruding toward the elastic portion, the first limiting rib being used to abut against the side of the battery cell to limit the battery cell.

[0011] In some embodiments, a third latching portion is formed on the side of the mounting member away from the bottom wall, the third latching portion being used to fasten the connecting row to the mounting member, the connecting row being used to connect two adjacent battery cells.

[0012] In some embodiments, the mounting member has a second mounting portion formed on the side facing the bottom wall, the second mounting portion defining a second mounting groove open toward the bottom wall, the second mounting groove for receiving the end of the battery cell, and the second mounting portion for absorbing the tolerance of the battery cell along a second direction.

[0013] Secondly, this application also provides a battery, including a battery cell and the aforementioned casing device. Both ends of the battery cell abut against the mounting member and the elastic portion, respectively.

[0014] Thirdly, this application also provides an electrical device, including the aforementioned housing device and / or the aforementioned battery.

[0015] Compared with known technologies, the housing device provided in this application allows for the insertion of one end of the battery cell into the receiving cavity during the process of installing the battery cell into the first mounting groove, with one end of the battery cell abutting against the elastic part. Then, the mounting component is placed over the housing, abutting the other end of the battery cell. After the mounting component is connected to the housing, the battery cell is limited by the elastic part and the mounting component along the first direction. Thus, the deformation of the elastic part absorbs assembly errors along the first direction, improving the ease of battery cell assembly and ensuring installation reliability. The first mounting part absorbs tolerances along the second direction, limiting the battery cell along the second direction, thereby comprehensively improving assembly yield. Furthermore, by placing the elastic part inside the first mounting groove, error absorption and limiting in both the first and second directions can be achieved simultaneously during battery cell assembly, thereby improving assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the electrical equipment provided in the embodiments of this application.

[0017] Figure 2 This is a schematic diagram of the battery structure provided in the embodiments of this application.

[0018] Figure 3 This is a schematic diagram of the exploded structure of the battery provided in the embodiment of this application.

[0019] Figure 4 This is a cross-sectional view showing the housing device separated from the battery cell according to an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the housing structure of the housing device provided in the embodiments of this application.

[0021] Figure 6 yes Figure 4 A magnified view of a portion of point III.

[0022] Figure 7 This is a top view of the housing of the housing device provided in the embodiments of this application along a first direction.

[0023] Figure 8 This is a schematic diagram of the structure of the battery cell, mounting component and connector provided in the embodiments of this application.

[0024] Figure 9 yes Figure 4 A magnified view of a portion of point VI in the middle.

[0025] Figure 10 This is a schematic diagram of the installation components and connecting strips provided in the embodiments of this application.

[0026] Figure 11 Figure 10 A magnified view of a portion of point V in the middle.

[0027] Figure 12 yes Figure 2 A magnified view of a portion of point II in the middle.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Electrical equipment; 10. Battery; 100. Housing device; 110. Box body; 111. Bottom wall; 112. Enclosure wall; 113. First mounting part; 1131. First mounting groove; 1132. First mounting wall; 1133. First limiting rib; 114. Elastic part; 1141. Connecting wall; 1142. Supporting wall; 1143. Deformation gap; 1144. Supporting protrusion; 1145. Relief groove; 115. Receiving cavity; 116. Second snap-fit ​​part; 1161. Second guide slope; 117. Fifth snap-fit ​​part; 1171. Snap hole; 118. Insertion wall; 119. Insertion groove; 120. Mounting component; 121. First snap-fit ​​part; 1211. Snap-fit ​​protrusion; 12111. First guide slope; 12112. Limiting surface; 122. First 123. Clearance groove; 1231. Second mounting part; 1232. Second mounting groove; 1233. Second mounting wall; 1233. Second limiting rib; 124. Through hole; 125. Third snap-fit ​​part; 1251. Fastener; 126. Fixing part; 200. Battery cell; 210. End face; 220. Liquid injection part; 230. Liquid injection hole; 300. Connecting row; 310. First connecting row; 311. Fixing section; 312. Bending section; 313. Connecting section; 320. Second connecting row; 400. Top cover; 410. Fourth snap-fit ​​part; 420. Reinforcing rib; 421. Second clearance groove; 430. Through hole; 500. Battery management system; 600. Sealing cover; X. First direction; Y. Second direction; Z1. Length direction; Z2. Width direction; Z3. Height direction. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0031] To address the technical problems of low yield and high cost in known battery production, this application provides a casing device, a battery, and an electrical device, which can reduce the assembly difficulty of the battery cell and casing device, improve production efficiency and yield, and reduce production costs. The battery includes a battery cell and a casing device. The battery cell is installed in the casing device.

[0032] See Figure 1 The electrical equipment 1 includes a housing 100 and / or a battery 10. The electrical equipment 1 may be a vehicle. The vehicle may be an electric vehicle or a hybrid vehicle.

[0033] It should be noted that the housing device described in this application is used in, but not limited to, automobiles, etc. For ease of explanation, this application only uses the application of housing device 100 in an automobile as an example. Housing device 100 and battery 10 can also be applied to electronic devices such as mobile phones and tablets, or mobile devices such as drones. The principle of housing device 100 and battery 10 in other types of devices is essentially the same as that in automobiles, and will not be elaborated here.

[0034] In this embodiment, the cross-section of the battery cell can be circular or rectangular. The following description uses a circular cross-section as an example. For ease of description, this embodiment defines a first direction X and a second direction Y. The first direction X is parallel to the axial direction of the battery cell. The second direction Y is parallel to the radial direction of the battery cell. When the cross-section of the battery cell is rectangular, the second direction Y is any direction on a plane perpendicular to the first direction X.

[0035] Please see Figure 2 and Figure 3 , Figure 2 This is a three-dimensional structural diagram of the battery 10 in this embodiment. Figure 3 This is a schematic diagram of the exploded structure of battery 10 in this embodiment. Battery 10 includes a casing 100 and a battery cell 200. See also... Figure 4 and Figure 5 The housing device 100 includes a housing 110 and a mounting member 120. The housing 110 includes a bottom wall 111, a surrounding wall 112, a first mounting portion 113, and an elastic portion 114. The surrounding wall 112 connects to the edge of the bottom wall 111 and forms a receiving cavity 115 open along a first direction X with the bottom wall 111. The receiving cavity 115 is used to receive the battery cell 200. The first mounting portion 113 is disposed on the bottom wall 111 and defines a first mounting groove 1131. The first mounting groove 1131 is used to receive the end of the battery cell 200 and is used to absorb the tolerance of the battery cell 200 along a second direction Y. The second direction Y intersects the first direction X perpendicularly or obliquely. The elastic portion 114 is disposed on the bottom wall 111 and is located within the first mounting groove 1131. Mounting member 120 covers housing 110. Mounting member 120 is used to limit battery cell 200 along first direction X with elastic part 114. Elastic part 114 is used to generate deformation to absorb assembly tolerance of battery cell 200.

[0036] According to the housing device 100 of this embodiment, during the process of installing the battery cell 200 into the receiving cavity 115, one end of the battery cell 200 can be inserted into the first mounting groove 1131, so that one end of the battery cell 200 abuts against the elastic part 114. Then, the mounting member 120 is closed to the housing 110, and the mounting member 120 abuts against the other end of the battery cell 200. After the mounting member 120 is connected to the housing 110, the battery cell 200 is limited by the elastic part 114 and the mounting member 120 along the first direction X. In this way, the deformation of the elastic part 114 can absorb the assembly error of the battery cell 200 along the first direction X. The assembly error includes the dimensional error of the battery cell 200 along the first direction X, the dimensional error of the elastic part 114, the dimensional error of the mounting member 120, the dimensional error of the housing 110, and the dimensional error of the connection relationship between the mounting member 120 and the housing 110. This can improve the ease of assembly of the battery cell 200 and ensure the installation reliability of the battery cell 200. The first mounting portion 113 absorbs the tolerance of the battery cell 200 along the second direction Y. This tolerance can be a dimensional error of the battery cell 200 along the second direction Y, thus limiting the battery cell 200 along the second direction Y and improving the overall assembly yield. Furthermore, by providing the elastic portion 114 inside the first mounting groove 1131, the error absorption and limiting effects in both the first direction X and the second direction Y can be achieved simultaneously during the assembly of the battery cell 200, thereby improving assembly efficiency. Therefore, by using the housing device 100 of this embodiment, the assembly yield and assembly efficiency of the battery cell 200 can be improved.

[0037] In this embodiment, see Figure 4 The box 110 has a length direction Z1, a width direction Z2, and a height direction Z3. The length direction Z1 is parallel to a first direction X. The width direction Z2 is parallel to one of a second direction Y. The height direction Z3 is perpendicular to the length direction Z1. The height direction Z3 is perpendicular to the width direction Z2.

[0038] In one embodiment, see Figure 4 The number of battery cells 200 can be single or multiple. The number of first mounting portions 113 is the same as the number of battery cells 200. The number of second mounting portions 123 is the same as the number of battery cells 200. When there are multiple battery cells 200, the multiple battery cells 200 can be arranged at intervals along the width direction Z2 of the housing 110, and adjacent battery cells 200 are staggered along the height direction Z3 of the housing 110. In this way, the number of battery cells 200 that can be installed can be increased when the length of the housing 110 is fixed. In other embodiments, adjacent battery cells 200 are arranged correspondingly along the height direction Z3 of the housing 110. The specific arrangement of the multiple battery cells 200 can be determined according to the specific dimensions of the housing 110.

[0039] In one embodiment, the elastic portion 114 and the bottom wall 111 are integrally formed. This reduces the number of structural components in the housing assembly 100, thereby saving assembly steps for the elastic portion 114, reducing the number of assembly parts in the housing assembly 100, further improving the assembly efficiency of the battery 10 and reducing assembly costs. The elastic portion 114 and the bottom wall 111 can be integrally formed using molding methods such as injection molding. In other embodiments, the elastic portion 114 and the bottom wall 111 can also be formed as two independent components. For example, the elastic portion 114 can be constructed as a foam or elastic column.

[0040] In one embodiment, see Figure 6 The elastic portion 114 includes a connecting wall 1141 and a supporting wall 1142. One end of the connecting wall 1141 is connected to the bottom wall 111, and the other end of the connecting wall 1141 extends along a first direction X. The supporting wall 1142 is connected to the other end of the connecting wall 1141. A deformation gap 1143 is formed between the supporting wall 1142 and the bottom wall 111. The supporting wall 1142 is used to abut against the battery cell 200. The supporting wall 1142 is configured to deform under the pressure of the battery cell 200 to absorb the assembly tolerance of the battery cell 200. Thus, when the dimension of the battery cell 200 along the first direction X is smaller than the distance between the supporting wall 1142 and the mounting member 120 along the first direction X in its natural state, the battery cell 200 causes the supporting wall 1142 to bend towards the bottom wall 111 and deform under the action of the mounting member 120, so that the elastic portion 114 can absorb the dimensional tolerance of the battery cell 200. When the battery 10 has other tolerances along the first direction X, the support wall 1142 can also deform accordingly to absorb the corresponding tolerances. The deformation gap 1143 ensures that the support wall 1142 deforms sufficiently to support the cell 200.

[0041] Optionally, there are two connecting walls 1141. The two connecting walls 1141 are spaced apart. The two ends of the support wall 1142 are respectively connected to the two connecting walls 1141. In this way, the overall structural reliability of the elastic part 114 can be improved, the possibility of the support wall 1142 breaking under pressure can be greatly reduced, thereby improving the structural reliability of the battery 10.

[0042] Optionally, see Figure 6Two spaced-apart support protrusions 1144 are formed on the side of the support wall 1142 opposite to the bottom wall 111. An end face 210 is formed at one end of the battery cell 200 along its length Z1. The end face 210 has an injection portion 220. An injection hole 230 is provided in the injection portion 220 for injecting electrolyte into the battery cell 200. The two support protrusions 1144 respectively abut against the end face 210 of the battery cell 200. A clearance groove 1145 is formed between the two support protrusions 1144 and the support wall 1142. The clearance groove 1145 is correspondingly provided to the injection portion 220 of the end face 210 of the battery cell 200. After the battery cell 200 is installed in the housing 110, the end of the battery cell 200 abuts against two support protrusions 1144, causing the support wall 1142 to deform. The clearance groove 1145 can prevent the liquid injection part 220 from directly contacting the support wall 1142, thereby protecting the liquid injection part 220. The liquid injection part 220 may protrude from the end face 210 or be flush with the end face 210.

[0043] In this embodiment, see Figure 6 and Figure 7 The first mounting portion 113 includes a plurality of first mounting walls 1132. The plurality of first mounting walls 1132 are arranged around the elastic portion 114 and form a first mounting groove 1131. One end of each first mounting wall 1132 is connected to the bottom wall 111, and the other end of each first mounting wall 1132 has a first limiting rib 1133 protruding towards the elastic portion 114. The first limiting rib 1133 is used to abut against the side of the battery cell 200 to limit the battery cell 200. When the radial dimension of the battery cell 200 is large, the first limiting rib 1133 can limit the radial displacement of the battery cell 200.

[0044] Optionally, the cross-sectional area of ​​the first mounting groove 1131 is slightly smaller than that of the battery cell 200 to achieve an interference fit between the first mounting part 113 and the battery cell 200. This facilitates the first mounting part 113 to absorb the radial tolerance of the battery cell 200 and provides a reliable limiting effect for the battery cell 200, preventing the battery cell 200 from shaking and improving the installation stability of the battery cell 200 within the housing device 100.

[0045] Optionally, see Figure 7 The cross-section of the first mounting wall 1132 is approximately arc-shaped. Furthermore, the lines connecting the cross-sections of the multiple first mounting walls 1132 are set in a shape that conforms to the outer peripheral surface of the battery cell 200, thereby enhancing the protection of the battery cell 200.

[0046] In this embodiment, see Figure 8 The edge of the mounting component 120 has a first snap-fit ​​portion 121. See also Figure 9A second latching portion 116 is formed at the end of the enclosure 112 opposite to the bottom wall 111. The first latching portion 121 engages with the second latching portion 116. In this way, the number of structural components required to connect the enclosure 112 and the mounting component 120 can be reduced, further simplifying the assembly steps of the housing device 100 and improving the assembly efficiency of the housing device 100.

[0047] Optionally, see Figure 10 There are multiple first latching parts 121. There are multiple second latching parts 116. Each second latching part 116 is connected to a corresponding first latching part 121. The multiple first latching parts 121 are arranged at intervals along the circumference of the mounting part. The multiple second latching parts 116 are arranged at intervals along the circumference of the enclosure 112.

[0048] In one embodiment, see Figure 8 The mounting member 120 has a first clearance groove 122 formed on its edge. A first latching portion 121 extends from the first clearance groove 122 along the first direction X. A latching protrusion 1211 is formed at the end of the first latching portion 121 facing the bottom wall 111. The latching protrusion 1211 protrudes outward from the edge of the mounting member 120. A second latching portion 116 protrudes from the inner surface of the enclosure wall 112. The second latching portion 116 is received in the first clearance groove 122. The latching protrusion 1211 abuts against the surface of the second latching portion 116 facing the bottom wall 111.

[0049] During the assembly of the first latching part 121, the first latching part 121 passes through the first clearance groove 122 and moves to the side of the second latching part 116 facing the bottom wall 111 under the limiting action of the second latching part 116. Afterwards, the second latching part 116 no longer limits the first latching part 121, and the first latching part 121 can abut against the second latching part 116, achieving a latching engagement. After the first clearance groove 122 avoids the first latching part 121, the first latching part 121 and the second latching part 116 can be engaged while the enclosure wall 112 of the housing 110 remains intact.

[0050] In one embodiment, see Figure 11A first guide slope 12111 is formed on the side of the snap-fit ​​protrusion 1211 facing the outer side of the mounting member 120. The first guide slope 12111 is inclined toward the end of the snap-fit ​​protrusion 1211 near the bottom wall 111, and the width of the snap-fit ​​protrusion 1211 gradually decreases along the direction near the bottom wall 111. A limiting surface 12112 is formed on the end of the snap-fit ​​protrusion 1211 facing away from the bottom wall 111. A second guide slope 1161 is formed on the side of the second snap-fit ​​portion 116 facing the inside of the receiving cavity 115. The second guide slope 1161 is approximately parallel to the first guide slope 12111. The second guide slope 1161 is inclined toward the end of the second snap-fit ​​portion 116 facing away from the bottom wall 111. Thus, during the assembly of the mounting component 120 and the housing 110, the cooperation between the second guide slope 1161 and the first guide slope 12111 guides the first snap-fit ​​portion 121 to deform, causing the snap-fit ​​protrusion 1211 to extend into the limiting surface 12112 towards the bottom wall 111. At this time, the second snap-fit ​​portion 116 extends into the first clearance groove 122 and no longer limits the first snap-fit ​​portion 121. The snap-fit ​​protrusion 1211 returns to its original shape and abuts against the limiting surface 12112, thereby achieving the snap-fit ​​engagement between the first snap-fit ​​portion 121 and the second snap-fit ​​portion 116. In this way, both the ease of installation and the reliability of the snap-fit ​​between the first snap-fit ​​portion 121 and the second snap-fit ​​portion 116 can be considered.

[0051] In other embodiments, the enclosure 112 and the mounting component 120 can also be fixedly connected by fastening components such as bolts, screws, and pins.

[0052] In one embodiment, see Figure 10 A second mounting portion 123 is formed on the side of the mounting member 120 facing the bottom wall 111. The second mounting portion 123 defines a second mounting groove 1231 that opens towards the bottom wall 111. The second mounting groove 1231 is used to receive the end of the battery cell 200, and the second mounting portion 123 is used to absorb the tolerance of the battery cell 200 along the second direction Y. In this way, the second mounting portion 123 cooperates with the first mounting portion 113 to reliably limit the radial direction of both ends of the battery cell 200.

[0053] In one embodiment, see Figure 11 The second mounting portion 123 includes a plurality of second mounting walls 1232. The plurality of second mounting walls 1232 form a second mounting groove 1231. A second limiting rib 1233 is formed at one end of the second mounting wall 1232 facing the bottom wall 111 and protruding toward the elastic portion 114. The second limiting rib 1233 is used to abut against the side of the battery cell 200 to limit the battery cell 200. When the radial dimension of the battery cell 200 is large, the second limiting rib 1233 can limit the radial displacement of the battery cell 200.

[0054] Optionally, the cross-sectional area of ​​the second mounting groove 1231 is slightly smaller than that of the battery cell 200 to achieve an interference fit between the second mounting part 123 and the battery cell 200. This facilitates the second mounting part 123 to absorb the radial tolerance of the battery cell 200 and provides a reliable limiting effect for the battery cell 200, preventing the battery cell 200 from shaking and improving the installation stability of the battery cell 200 within the housing device 100.

[0055] Optionally, the cross-section of the second mounting wall 1232 is approximately arc-shaped. Furthermore, the lines connecting the cross-sections of the plurality of second mounting walls 1232 are configured to conform to the outer peripheral surface of the battery cell 200, thereby enhancing the protection of the battery cell 200.

[0056] In this embodiment, see Figure 10 The battery 10 also includes a connecting strip 300. The connecting strip 300 is located on the side of the mounting member 120 opposite to the bottom wall 111. The connecting strip 300 connects two adjacent battery cells 200.

[0057] Optionally, the mounting member 120 has a plurality of through holes 124. The number of through holes 124 is the same as the number of battery cells 200. Each battery cell 200 protrudes from a corresponding through hole 124. One end of the connecting bar 300 can extend into the corresponding through hole 124 to connect the battery cell 200 within that through hole 124.

[0058] In this embodiment, the elastic part 114 is disposed on the bottom wall 111, which can ensure that the end of the battery cell 200 away from the bottom wall 111 remains connected to the connecting bar 300, thus ensuring the connection safety of the battery cell 200.

[0059] In one embodiment, see Figure 11 A third latching portion 125 is formed on the side of the mounting component 120 opposite to the bottom wall 111. The third latching portion 125 is used to fasten the connecting strip 300 to the mounting component 120. In this way, the assembly efficiency of the connecting strip 300 can be improved, the installation position of the connecting strip 300 can be fixed, and the connection safety between the connecting strip 300 and the battery cell 200 can be ensured.

[0060] In one embodiment, see Figure 11 The third latching part 125 includes two spaced fasteners 1251. The two fasteners 1251 are respectively used to press against the two sides of the connecting row 300 along its width direction Z2 to the mounting part 120. The two fasteners 1251 can be arranged facing each other along the length direction Z1 of the connecting row 300, or they can be staggered along the length direction Z1 of the connecting row 300.

[0061] In one embodiment, see Figure 10The mounting component 120 also includes two fixing parts 126. Along the distribution direction of the battery cells 200, the two fixing parts 126 are located at both ends of the mounting component 120, and are used to fix the two connecting bars 300 at both ends of the plurality of connecting bars 300 respectively. This further improves the fixing reliability of the plurality of connecting bars 300 on the mounting component 120.

[0062] Optionally, see Figure 10 and Figure 11 The plurality of connecting rows 300 includes two first connecting rows 310 and a plurality of second connecting rows 320. The plurality of second connecting rows 320 are sequentially spaced between the two first connecting rows 310. The second connecting rows 320 generally conform to the surface of the mounting member 120 facing away from the bottom wall 111. The first connecting row 310 includes a fixing section 311, a bending section 312, and a connecting section 313. The fixing section 311 is located on the surface of the fixing part 126 facing away from the bottom wall 111 and is connected to the fixing part 126 by a fastening member. The connecting section 313 generally conforms to the surface of the mounting member 120 facing away from the bottom wall 111 and connects to the battery cell 200. A third latching part 125 is used to engage the connecting section 313 with the mounting member 120. The bending section 312 connects the fixing section 311 and the connecting section 313.

[0063] In this embodiment, please refer again. Figure 3 The battery 10 also includes a top cover 400 and a battery management system 500. The top cover 400 is located on the side of the mounting member 120 opposite to the bottom wall 111. The top cover 400 is connected to the housing 110. The battery management system 500 is located between the top cover 400 and the mounting member 120. The battery management system 500 can be fixedly connected to the inside of the top cover 400 by screws.

[0064] In one embodiment, see Figure 12 The edge of the top cover 400 has a fourth snap-fit ​​portion 410. The housing 110 includes a fifth snap-fit ​​portion 117. The fifth snap-fit ​​portion 117 extends from the end of the enclosure wall 112 away from the bottom wall 111. The fifth snap-fit ​​portion 117 engages with the fourth snap-fit ​​portion 410. In this way, a quick and secure connection can be achieved between the top cover 400 and the housing 110, improving assembly efficiency and reducing the number of parts.

[0065] Optionally, the fifth latching part 117 has a latching hole 1171. The fourth latching part 410 engages with the latching hole 1171.

[0066] In one embodiment, see Figure 12 The outer peripheral surface of the top cover 400 has a protruding reinforcing rib 420. The reinforcing rib 420 is located on the side of the top cover 400 near its opening. The reinforcing rib 420 can strengthen and protect the top cover 400 and also serve a decorative purpose for the housing device 100.

[0067] Optionally, the reinforcing rib 420 is formed with a second clearance groove 421. The fifth latching part 117 extends into the second clearance groove 421. In this way, it plays a positioning role in the assembly position of the top cover 400 and the housing 110, further improving the assembly yield of the battery 10.

[0068] In one embodiment, after the fifth latching part 117 and the fourth latching part 410 are engaged, the top cover 400 and the housing 110 can also be sealed by applying adhesive.

[0069] Specifically, see Figure 5 The housing 110 also includes a plug-in wall 118. The plug-in wall 118 connects to one end of the enclosure wall 112 away from the bottom wall 111. One end of the plug-in wall 118 connects to the inside of the enclosure wall 112, and the other end of the plug-in wall 118 extends in the direction away from the bottom wall 111. The plug-in wall 118 and the enclosure wall 112 form a plug-in groove 119. The top cover 400 is inserted into the plug-in groove 119.

[0070] Optionally, the insertion slot 119 is annular. Adhesive can be injected into the insertion slot 119 to achieve a seal between the top cover 400 and the housing 110, and to achieve concealed adhesive application, improving the aesthetics of the battery 10. In other embodiments, the adhesive can also be applied to the outside of the housing 110.

[0071] In one embodiment, see Figure 2 The top cover 400 has a through hole 430 on the side opposite to the mounting member 120. The battery 10 also includes a sealing cover 600. The sealing cover 600 is disposed in the through hole 430 and closes the through hole 430.

[0072] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Any other corresponding changes and modifications made based on the technical concept of this application should be included within the scope of protection of the claims of this application.

Claims

1. A housing device, characterized by include: The housing includes a bottom wall, a surrounding wall, a first mounting portion, and an elastic portion. The surrounding wall connects to the edge of the bottom wall and forms a receiving cavity open along a first direction, the receiving cavity being used to receive a battery cell. The first mounting portion is disposed on the bottom wall and defines a first mounting groove for receiving the end of the battery cell. The first mounting portion is used to absorb the tolerance of the battery cell along a second direction, the second direction being perpendicular to or intersecting the first direction at an angle. The elastic portion is disposed on the bottom wall and located within the first mounting groove. as well as The mounting component covers the housing and is used to limit the battery cell along the first direction with the elastic part. The elastic part is used to generate deformation to absorb the assembly tolerance of the battery cell.

2. The housing device according to claim 1, characterized in that, The elastic part and the bottom wall are integrally formed components.

3. The housing device according to claim 1, characterized in that, The elastic part includes a connecting wall and a supporting wall. One end of the connecting wall is connected to the bottom wall, and the other end of the connecting wall extends along a first direction. The supporting wall is connected to the other end of the connecting wall. A deformation gap is formed between the supporting wall and the bottom wall. The supporting wall is used to abut against the battery cell. The supporting wall is configured to deform under the pressure of the battery cell to absorb the assembly tolerance of the battery cell.

4. The housing device according to claim 1, characterized in that, The edge of the mounting component has a first snap-fit ​​portion, and the end of the enclosure away from the bottom wall has a second snap-fit ​​portion, with the first snap-fit ​​portion and the second snap-fit ​​portion engaging.

5. The housing device according to claim 4, characterized in that, The edge of the mounting component is formed with a first clearance groove, the first buckle extends from the first clearance groove along a first direction, the end of the first buckle facing the bottom wall is formed with a first buckle, and the first buckle protrudes outward from the edge of the mounting component. The second latching part protrudes from the inner surface of the enclosure wall, the second latching part is received in the first clearance groove, and the first latching part abuts against the surface of the second latching part facing the bottom wall.

6. The housing device according to claim 1, characterized in that, The first mounting portion includes a plurality of first mounting walls, which are arranged around the elastic portion and form the first mounting groove; one end of the first mounting wall is connected to the bottom wall, and the other end of the first mounting wall is formed with a first limiting rib protruding toward the elastic portion. The first limiting rib is used to abut against the side of the battery cell to limit the battery cell.

7. The housing device according to claim 1, characterized in that, The mounting component has a third latching part on the side opposite to the bottom wall. The third latching part is used to fasten the connecting strip to the mounting component. The connecting strip is used to connect two adjacent battery cells.

8. The housing device according to claim 1, characterized in that, The mounting member has a second mounting portion formed on the side facing the bottom wall. The second mounting portion defines a second mounting groove that opens towards the bottom wall. The second mounting groove is used to receive the end of the battery cell. The second mounting portion is used to absorb the tolerance of the battery cell along a second direction.

9. A battery, characterized in that, The device includes a housing and a battery cell as described in any one of claims 1 to 8, wherein the two ends of the battery cell abut against the mounting member and the elastic portion, respectively.

10. An electrical appliance, characterized in that, Includes the battery as described in claim 9.

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