Port assembly of battery, battery, battery pack and electric device

Abstract

An electric device. The electric device comprises a battery pack, which comprises a battery. The battery comprises a port assembly and an electrode assembly, wherein the port assembly is located at an end of the electrode assembly. The port assembly comprises a top spacer and an inner spacer. The top spacer comprises a first main body portion and a first snap-fit portion, wherein the first snap-fit portion is arranged on a side surface of the first main body portion. The inner spacer comprises a second main body portion and a second snap-fit portion, wherein the second snap-fit portion is arranged on a side surface of the second main body portion, and the first snap-fit portion is in snap-fit with the second snap-fit portion.

Description

Battery port components, batteries, battery packs, and electrical devices

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese patent application No. 202421817344.7, filed on July 29, 2024, with the China National Intellectual Property Administration and entitled "Port assembly of battery, battery, battery pack and electrical device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of electrical equipment technology, and in particular to a battery port assembly, a battery, a battery pack, and an electrical device. Background Technology

[0004] In related technologies, battery cover assemblies are connected and assembled using plastic parts, which are then secured with snap-fit ​​fasteners. However, in the port assembly, the snap-fit ​​fasteners on the top spacer are all independently raised above the body. During packaging and transportation, these fasteners are easily deformed or damaged due to mutual squeezing between products, leading to product defects. Deformed fasteners can also trigger fault alarms on automated assembly lines, affecting production rhythm and capacity. Furthermore, the existing snap-fit ​​structure results in thin iron at the insertion point of the mold, making the mold prone to deformation or breakage during production. This leads to excess glue on the product, preventing it from passing through and impacting normal mold output. Frequent mold repairs also increase maintenance costs.

[0005] Public content

[0006] This disclosure aims to address at least one of the technical problems existing in the prior art. To this end, this disclosure proposes a battery port assembly that can improve product yield, avoid impacting production capacity, and further improve mold life and production efficiency.

[0007] This disclosure further proposes a battery.

[0008] This disclosure further proposes a battery pack.

[0009] This disclosure also proposes an electrical device.

[0010] According to the present disclosure, a port assembly of a battery is disposed within the battery, the battery including an electrode core, the port assembly being located at the end of the electrode core, the port assembly including: a top spacer, the top spacer including a first main body portion and a first snap-fit ​​portion, the first snap-fit ​​portion being disposed on the side of the first main body portion; and an inner spacer, the inner spacer including a second main body portion and a second snap-fit ​​portion, the second snap-fit ​​portion being disposed on the side of the second main body portion, the first snap-fit ​​portion engaging with the second snap-fit ​​portion.

[0011] According to the battery port assembly disclosed herein, a first latching portion is disposed on the side of a first main body, and a second latching portion is disposed on the side of a second main body. This allows the first latching portion to be adjusted within the maximum outline of the port assembly, preventing it from protruding independently above the first main body. This avoids mutual compression and deformation of the port assemblies during packaging and transportation, improving product yield and minimizing impact on production capacity. Furthermore, it reduces the number of thin metal insertion points in the mold, thereby reducing mold malfunctions caused by thin metal deformation or breakage, and improving mold lifespan and production efficiency.

[0012] In some examples of this disclosure, the first snap-fit ​​portion is constructed as a slot, and the second snap-fit ​​portion is constructed as a buckle.

[0013] In some examples of this disclosure, the snap-fit ​​is a resilient structural element.

[0014] In some examples of this disclosure, the inner spacer further includes an adhesive portion that is bonded to the connection between the buckle and the second main body; or the connection between the buckle and the second main body is provided with a chamfered structure.

[0015] In some examples of this disclosure, the direction of force on the buckle is a first direction, and the direction of engagement between the top spacer and the inner spacer is a second direction, wherein the first direction and the second direction are perpendicular to each other.

[0016] In some examples of this disclosure, the top spacer ring is further provided with a first guide portion, which is disposed at one end of the first snap-fit ​​portion adjacent to the inner spacer ring.

[0017] In some examples of this disclosure, the inner spacer is further provided with a second guide portion, which is located at one end of the second snap-fit ​​portion adjacent to the top spacer.

[0018] In some examples of this disclosure, the first guide portion is constructed with a chamfered structure, and the second guide portion is constructed with a chamfered structure.

[0019] In some examples of this disclosure, the inner spacer includes a first inner spacer and a second inner spacer. A first mounting portion is provided on the side of the first inner spacer adjacent to the second inner spacer, and a second mounting portion is provided on the side of the second inner spacer adjacent to the first inner spacer. The first mounting portion and the second mounting portion are fitted together.

[0020] In some examples of this disclosure, one of the first mounting portion and the second mounting portion is a mounting protrusion, and the other of the first mounting portion and the second mounting portion is a mounting groove, wherein the mounting protrusion engages within the mounting groove.

[0021] In some examples of this disclosure, a mounting groove is provided on the side surface of the top spacer facing the inner spacer, the mounting groove being used to install the lead-out piece.

[0022] According to the present disclosure, a battery includes: a housing; a cover plate disposed on the housing; an electrode core disposed within the housing; and a port assembly of the battery described above, the port assembly being disposed within the housing, wherein the internal spacers include a first internal spacer and a second internal spacer, the electrode tabs of the electrode core are sandwiched between the first internal spacer and the second internal spacer, and at least a portion of the electrode tabs are located within a cavity formed by the top spacer and the internal spacers.

[0023] The battery pack according to this disclosure includes the batteries described above.

[0024] The electrical equipment according to this disclosure includes the battery pack described above.

[0025] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic diagram of a port component according to an embodiment of the present disclosure;

[0028] Figure 2 is an exploded view of a port assembly according to an embodiment of the present disclosure;

[0029] Figure 3 is a schematic diagram of the top spacer ring;

[0030] Figure 4 is a schematic diagram of the internal spacers;

[0031] Figure 5 is a schematic block diagram of a battery pack according to an embodiment of the present disclosure;

[0032] Figure 6 is a schematic block diagram of an electrical appliance according to an embodiment of the present disclosure;

[0033] Figure 7 is a schematic diagram of the cover plate according to an embodiment of this disclosure;

[0034] Figure 8 is a schematic diagram of the cover plate from another perspective according to an embodiment of this disclosure;

[0035] Figure 9 is a schematic diagram of the housing and electrode core according to an embodiment of this disclosure;

[0036] Figure 10 is a schematic diagram of the housing and electrode tabs according to an embodiment of the present disclosure.

[0037] Reference numerals: 3000, electrical equipment; 2000, battery pack; 1000, battery; 2, housing; 3, cover plate; 4, electrode core; 5, electrode tab; 1, port assembly; 10, top spacer; 100, first main body; 101, first snap-fit ​​part; 102, first guide part; 103, assembly groove; 20, internal spacer; 200, second main body; 201, second snap-fit ​​part; 202, adhesive part; 203, second guide part; 204, first internal spacer; 205, second internal spacer; 206, first mounting part; 207, second mounting part. Detailed Implementation

[0038] The embodiments of this disclosure are described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary.

[0039] The following description, with reference to Figures 1-4, describes a battery port assembly 1 according to an embodiment of the present disclosure, which can be used for connecting and assembling a blade battery cover assembly.

[0040] As shown in Figures 1 and 2, according to an embodiment of the present disclosure, a port assembly 1 of a battery is disposed within the battery. The battery includes an electrode core 4, and the port assembly 1 is located at the end of the electrode core 4, and includes a top spacer 10 and an inner spacer 20. The port assembly 1 is disposed within the battery, and the electrode core 4 is disposed within the battery. The port assembly 1 serves two purposes: firstly, it allows for the installation of a cover plate assembly at the edge and provides insulation from the cover plate; secondly, it secures the electrode core 4 and the tab 5, making the battery structure more stable. The top spacer 10 and the inner spacer 20 are components of the port assembly 1, and the top spacer 10 and the inner spacer 20 are snap-fitted together to form the port assembly 1.

[0041] As shown in Figures 3 and 4, the top spacer 10 includes a first main body 100 and a first snap-fit ​​portion 101, with the first snap-fit ​​portion 101 disposed on the side of the first main body 100. The first main body 100 is the main body of the top spacer 10 and can be used to connect and install other components. The first snap-fit ​​portion 101 is a component of the top spacer 10, and its main function is to snap and fix the connection. The first snap-fit ​​portion 101 is disposed on the side of the first main body 100, thus forming a single unit with the first main body 100, facilitating the installation and setting of the top spacer 10.

[0042] As shown in Figures 3 and 4, the inner spacer 20 includes a second main body 200 and a second snap-fit ​​part 201. The second snap-fit ​​part 201 is disposed on the side of the second main body 200, and the first snap-fit ​​part 101 engages with the second snap-fit ​​part 201. The second main body 200 is the main body of the inner spacer 20 and can be used to connect and install other components. The second snap-fit ​​part 201 is a component of the inner spacer 20, and its main function is to snap and fix the connection. The second snap-fit ​​part 201 is disposed on the side of the second main body 200, so that the second snap-fit ​​part 201 and the second main body 200 form a whole, which facilitates the installation and setting of the inner spacer 20. The snap-fit ​​connection between the first snap-fit ​​part 101 and the second snap-fit ​​part 201 is simple and convenient, and it can make the connection between the top spacer 10 and the inner spacer 20 firm and reliable.

[0043] Therefore, by placing the first latching portion 101 on the side of the first main body portion 100 and the second latching portion 201 on the side of the second main body portion 200, the first latching portion 101 can be adjusted to fit within the maximum outline of the port assembly 1. This prevents the first latching portion 101 from being independently higher than the first main body portion 100, thus avoiding mutual compression and deformation of the port assemblies 1 during packaging and transportation, improving the product qualification rate, and avoiding impact on production capacity. Furthermore, it reduces the number of thin metal insertion points in the mold, thereby reducing mold malfunctions caused by deformation or breakage of the thin metal, and improving mold lifespan and production efficiency.

[0044] Specifically, as shown in Figure 3, the first snap-fit ​​part 101 is constructed as a slot, and the second snap-fit ​​part 201 is constructed as a buckle. Both the slot and the buckle can serve to snap and fix the connection. The first snap-fit ​​part 101 is constructed as a slot, and the second snap-fit ​​part 201 is constructed as a buckle. In this way, the snap-fit ​​cooperation between the first snap-fit ​​part 101 and the second snap-fit ​​part 201 is achieved through the snap-fit ​​cooperation between the slot and the buckle. The structure of the slot and the buckle is simple and easy to process and manufacture. Moreover, the snap-fit ​​connection method between the slot and the buckle is simple and convenient, and it can make the connection between the top spacer 10 and the inner spacer 20 firm and reliable.

[0045] As shown in Figure 3, the buckle is an elastic structural component. Elastic structural components possess elastic properties; by designing the buckle as an elastic component, it can undergo elastic deformation. When the buckle engages with the slot, its shape can be adjusted through its own elastic deformation, making it easier to engage within the slot. Furthermore, this design avoids damage to the buckle caused by a rigid fit between the buckle and the slot.

[0046] Furthermore, as shown in Figure 4, the inner spacer 20 also includes an adhesive portion 202, which is bonded to the connection between the buckle and the second main body 200, or the connection between the buckle and the second main body 200 has a chamfered structure. The adhesive portion 202 primarily serves to bond and connect the buckle and the second main body 200. Bonding the buckle to the connection between the buckle and the second main body 200 increases the connection strength between them. Similarly, the chamfered structure at the connection between the buckle and the second main body 200 also increases the connection strength. This improves the safety and durability of the buckle, enhances the connection performance between the buckle and the second main body 200, and ensures that the buckle is not easily damaged during engagement.

[0047] Of course, as shown in Figure 2, the force direction of the buckle is the first direction, and the engagement direction of the top spacer 10 and the inner spacer 20 is the second direction. The first direction and the second direction are perpendicular to each other. The force direction of the buckle is the first direction, which is the force direction after the buckle is engaged in the slot. The first direction refers to the horizontal direction. The engagement direction of the top spacer 10 and the inner spacer 20 is the second direction, which refers to the vertical direction. The first direction and the second direction are perpendicular to each other. This can avoid the situation where the engagement direction of the top spacer 10 and the inner spacer 20 is the same as the force direction of the inner spacer 20 when assembling the top spacer 10, which would cause the buckle of the inner spacer 20 to break open.

[0048] Furthermore, as shown in Figure 3, the top spacer 10 is also provided with a first guide portion 102, which is located at one end of the first engaging portion 101 adjacent to the inner spacer 20. The first guide portion 102 is a component of the top spacer 10, primarily serving a positioning and guiding function. It can also withstand a certain amount of lateral pressure, reducing friction and wear, improving the smoothness of movement, and maintaining the uniformity of the gap. By positioning the first guide portion 102 at one end of the first engaging portion 101 adjacent to the inner spacer 20, it facilitates better engagement of the latch into the slot when the top spacer 10 and the inner spacer 20 are fastened together.

[0049] In addition, as shown in Figure 4, the inner spacer 20 is also provided with a second guide portion 203, which is located at one end of the second snap-fit ​​portion 201 adjacent to the top spacer 10. The second guide portion 203 is a component of the inner spacer 20. Similarly, the second guide portion 203 mainly functions as a positioning and guiding element, and can also withstand a certain amount of lateral pressure, reducing friction and wear, improving the smoothness of movement, and maintaining the uniformity of the gap. By positioning the second guide portion 203 at one end of the second snap-fit ​​portion 201 adjacent to the top spacer 10, it is easier for the snap fastener to engage better into the slot when the top spacer 10 and the inner spacer 20 are engaged.

[0050] It should be noted that, as shown in Figures 3 and 4, both the first guide portion 102 and the second guide portion 203 are constructed with chamfered edges. Constructing both the first guide portion 102 and the second guide portion 203 with chamfered edges facilitates processing and installation. Furthermore, the first guide portion 102 and the second guide portion 203 can better perform their positioning and guiding functions, and when the top spacer 10 and the inner spacer 20 are engaged, it facilitates better engagement of the snap fastener into the slot.

[0051] Additionally, as shown in Figure 4, the inner spacer 20 includes a first inner spacer 204 and a second inner spacer 205. A first mounting portion 206 is provided on the side of the first inner spacer 204 adjacent to the second inner spacer 205, and a second mounting portion 207 is provided on the side of the second inner spacer 205 adjacent to the first inner spacer 204. The first mounting portion 206 and the second mounting portion 207 are fitted together.

[0052] The first inner spacer 204 and the second inner spacer 205 are components of the inner spacer 20. Both the first mounting part 206 and the second mounting part 207 can be used for installation and fixation. The first inner spacer 204 is provided with the first mounting part 206 on the side adjacent to the second inner spacer 205, and the second inner spacer 205 is provided with the second mounting part 207 on the side adjacent to the first inner spacer 204. The first mounting part 206 and the second mounting part 207 are installed and fitted together, so that the first inner spacer 204 and the second inner spacer 205 can be snapped together, which facilitates the installation and setting of the inner spacer 20.

[0053] Optionally, as shown in Figure 4, one of the first mounting portion 206 and the second mounting portion 207 is a mounting protrusion, while the other is a mounting groove, with the mounting protrusion fitting into the mounting groove. Both the mounting protrusion and the mounting groove serve to fix the parts in place. The mounting protrusion and the mounting groove, with the mounting protrusion fitting into the mounting groove, facilitate the installation and setting of the first internal spacer 204 and the second internal spacer 205 by means of the mounting protrusion within the mounting groove. This also makes the setting of the internal spacer 20 more secure and reliable.

[0054] It should be noted that, as shown in Figure 3, a mounting groove 103 is provided on the surface of the top spacer 10 facing the inner spacer 20. The mounting groove 103 is used to install the lead-out piece. The mounting groove 103 can mainly be used to install other components. The mounting groove 103 is installed on the surface of the top spacer 10 facing the inner spacer 20. The mounting groove 103 can be used to install the lead-out piece, which is connected to the battery's tab 5 by welding.

[0055] The battery 1000 according to an embodiment of this disclosure includes a housing 2, a cover plate 3, an electrode core 4, and a port assembly 1 of the battery of the above embodiments, as shown in Figures 7-10. The cover plate 3 covers the housing 2, the electrode core 4 is disposed inside the housing 2, and the port assembly 1 is disposed inside the housing 2. The internal spacer 20 includes a first internal spacer 204 and a second internal spacer 205, and the electrode tabs 5 of the electrode core 4 are sandwiched between the first internal spacer 204 and the second internal spacer 205, and at least a portion of the electrode tabs 5 are located in the cavity formed by the top spacer 10 and the internal spacer 20.

[0056] The housing 2, cover plate 3, electrode core 4, and port assembly 1 of the battery in the above embodiment are components of the battery 1000. The cover plate 3 covers the housing 2, the electrode core 4 is disposed within the housing 2, and the port assembly 1 is disposed within the housing 2. The internal spacer 20 includes a first internal spacer 204 and a second internal spacer 205, which are components of the internal spacer 20. The electrode tabs 5 of the electrode core 4 are sandwiched between the first internal spacer 204 and the second internal spacer 205, and at least a portion of the electrode tabs 5 are located within the cavity formed by the top spacer 10 and the internal spacer 20. That is, the electrode tabs 5 of the electrode core 4 are disposed between the first internal spacer 204 and the second internal spacer 205, and at least a portion of the electrode tabs 5 are located within the cavity formed by the top spacer 10 and the internal spacer 20.

[0057] The battery pack 2000 according to an embodiment of the present disclosure includes the battery 1000 of the above embodiments, as shown in FIG5.

[0058] The electrical device 3000 according to an embodiment of the present disclosure includes the battery pack 2000 of the above embodiments, as shown in FIG6.

[0059] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0060] In the description of this disclosure, "first feature" and "second feature" may include one or more of the features. In the description of this disclosure, "a plurality of" means two or more. In the description of this disclosure, "above" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features not in direct contact but through another feature between them. In the description of this disclosure, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature.

[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although embodiments of this disclosure have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. A port assembly (1) of a battery, said port assembly (1) being arranged in said battery, said battery comprising a core (4), said port assembly (1) being located at an end of said core (4), characterized in that, The port assembly (1) comprises: a top spacer ring (10) comprising a first main body portion (100) and a first clamping portion (101) arranged on a side of the first main body portion (100); and an inner spacer ring (20) comprising a second main body portion (200) and a second clamping portion (201) arranged on a side of the second main body portion (200), the first clamping portion (101) being clamped with the second clamping portion (201).

2. The port assembly (1) of a battery according to claim 1, characterized in that The first clamping portion (101) is configured as a clamping groove, and the second clamping portion (201) is configured as a clamping buckle.

3. The port assembly (1) of a battery according to claim 2, characterized in that The clamping buckle is a resilient structural member.

4. The port assembly (1) of a battery according to claim 2 or 3, characterized in that The inner spacer ring (20) further comprises an adhesive portion (202) adhered to a connection between the clamping buckle and the second main body portion (200); or The connection between the clamping buckle and the second main body portion (200) is provided with a chamfer structure.

5. The port assembly (1) of a battery according to any one of claims 2-4, characterized in that, A force direction of the clamping buckle is a first direction, and a buckling direction of the top spacer ring (10) and the inner spacer ring (20) is a second direction, the first direction being perpendicular to the second direction.

6. The port assembly (1) of a battery according to any one of claims 1-5, characterized in that, The top spacer ring (10) is further provided with a first guide portion (102) arranged at one end of the first clamping portion (101) adjacent to the inner spacer ring (20).

7. The port assembly (1) of a battery according to claim 6, characterized in that The inner spacer ring (20) is further provided with a second guide portion (203) arranged at one end of the second clamping portion (201) adjacent to the top spacer ring (10).

8. The port assembly (1) of a battery according to claim 7, characterized in that The first guide portion (102) is configured as a chamfer structure, and the second guide portion (203) is configured as a chamfer structure.

9. The port assembly (1) of a battery according to any one of claims 1-8, characterized in that, The inner spacer ring (20) comprises a first inner spacer ring (204) and a second inner spacer ring (205), one side of the first inner spacer ring (204) adjacent to the second inner spacer ring (205) is provided with a first mounting portion (206), and one side of the second inner spacer ring (205) adjacent to the first inner spacer ring (204) is provided with a second mounting portion (207), the first mounting portion (206) being mounted with the second mounting portion (207).

10. The port assembly (1) of a battery according to claim 9, characterized in that One of the first mounting portion (206) and the second mounting portion (207) is a mounting protrusion, and the other of the first mounting portion (206) and the second mounting portion (207) is a mounting groove, the mounting protrusion being fitted in the mounting groove.

11. The port assembly (1) of a battery according to any one of claims 1-10, characterized in that, A mounting groove (103) for mounting a lead-out piece is arranged on a side surface of the top spacer ring (10) facing the inner spacer ring (20).

12. A battery (1000) characterized in that, It comprises: a shell (2); a cover plate (3) covering the shell (2); a pole core (4) arranged in the shell (2); and ​ The port assembly (1) of the battery according to any one of claims 1-11, wherein the inner gasket (20) comprises a first inner gasket (204) and a second inner gasket (205), and the tab (5) of the pole core (4) is clamped between the first inner gasket (204) and the second inner gasket (205), and at least part of the tab (5) is located in a cavity surrounded by the top gasket (10) and the inner gasket (20).

13. A battery pack (2000), characterized by, Comprising: The battery (1000) according to claim 12.

14. An electrical device (3000) characterized by: Comprising: The battery pack (2000) according to claim 13.

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