Battery and power consuming device
By setting the movable part of the retainer in the battery to abut against the contoured part and strengthening the connection with reinforcing ribs, the interference problem of the folding part is solved, and the stability and support effect after folding are achieved.
Patent Information
- Application Number
- CN202522572671.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-03
AI Technical Summary
After the folding section is folded, it is easy for it to squeeze and interfere with the contour block, causing the contour block to warp and deform, which affects the support effect on other components inside the battery.
Design a battery structure in which the movable part of the retainer folds up and abuts against the outer wall of the profiled part, and is connected to the profiled part by reinforcing ribs set on the base plate to enhance the connection strength, ensure that the profiled part is adapted to the shell, and maintain the support effect on other components.
The design of the abutment and reinforcing ribs ensures stability after folding, prevents the contoured parts from shaking and warping, enhances structural strength, ensures the compatibility of the contoured parts with the shell, and maintains the support effect on the pole post and pole lug assembly.
Smart Images
Figure CN224934755U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of batteries, and specifically discloses a battery and an electrical device. Background Technology
[0002] In some batteries, a retainer is installed inside the casing to support components such as the terminals and tabs. Specifically, the retainer includes a contour block and a folding section. The contour block conforms to the shape of the casing and has a cavity inside. When the folding section is folded, the redundant parts of the tabs can be folded and gathered.
[0003] However, after the folding section is folded, it is easy for the contour blocks to squeeze and interfere, causing the contour blocks to warp and deform, making it difficult to fit with the shell and affecting the support effect on other components inside the battery. Utility Model Content
[0004] This application provides a battery and a power supply device to solve the problem of interference between the folded part and the contour block after folding.
[0005] In a first aspect, this application provides a battery comprising a casing, a cell, and a retainer. The casing includes a main cavity and a sub-cavity that are connected to each other; the cell is disposed in the main cavity and extends multiple tabs to the sub-cavity, the multiple tabs being folded together to form a tab assembly; the retainer is disposed in the sub-cavity and includes a conforming member and a folding assembly, the folding assembly including a base plate and a movable member, the movable member being foldable relative to the base plate; the movable member has an abutment portion, which abuts against the outer wall of the conforming member after the movable member is folded; the conforming member is connected to the base plate, the base plate having reinforcing ribs, the reinforcing ribs being connected to the conforming member.
[0006] Secondly, this application also provides an electrical device, including the battery of the first aspect.
[0007] This application has at least the following beneficial effects: In this application, by "providing an abutment part to abut against the outer wall of the contoured part after folding", the stability of the movable part after folding is ensured, and shaking is avoided; "the base plate is provided with reinforcing ribs and connected to the contoured part", which enhances the structural strength of the connection between the base plate and the contoured part, resists the stress during folding, and prevents the contoured part from being squeezed and warped; the design basis of "contouring the contoured part with the shell" combined with the support of reinforcing ribs ensures that the contoured part is always adapted to the shell and maintains the support effect on other components (such as pole posts and pole lugs). Attached Figure Description
[0008] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0009] Figure 1 This is a schematic diagram of the overall structure of the battery proposed in some embodiments of this application; Figure 2 This is a schematic cross-sectional view of the battery at the terminal post according to some embodiments of this application; Figure 3 This is a schematic diagram showing the folded state of the cage proposed in some embodiments of this application; Figure 4 This is a schematic diagram showing the unfolded state of the cage as proposed in some embodiments of this application; Figure 5 for Figure 4 An enlarged schematic diagram of point A in the diagram.
[0010] Explanation of reference numerals in the attached figures: 10. Housing; 101. Main cavity; 102. Sub-cavity; 20. Battery cell; 201. Electrode assembly; 30. Cage; 301. Contouring part; 3011. Top wall; 3012. Side wall; 302. Base plate; 3021. Connecting plate; 3022. Hook; 3023. Opening; 303. Moving part; 3031. Abutting part; 3032. Connecting part; 3033. First plate; 3034. Second plate; 3035. Locking hole; 3036. Limiting protrusion; 304. Reinforcing rib; 40. Terminal post. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0012] The embodiments of this application are described below with reference to the accompanying drawings. It can be understood that the technical features involved in the different embodiments described below can be combined with each other as long as they do not conflict with each other.
[0013] According to an embodiment of the present invention, in a first aspect, in conjunction with Figures 1 to 5A battery is provided, comprising a housing 10, a cell 20, and a retainer 30. The housing 10 includes a main cavity 101 and a sub-cavity 102 that are connected to each other; the cell 20 is disposed in the main cavity 101 and extends multiple tabs to the sub-cavity 102, the multiple tabs being folded together to form a tab assembly 201; the retainer 30 is disposed in the sub-cavity 102 and includes a contouring member 301 and a folding assembly, the folding assembly including a base plate 302 and a movable member 303, the movable member 303 being foldable relative to the base plate 302; the movable member 303 has an abutment portion 3031, which abuts against the outer wall of the contouring member 301 after the movable member 303 is folded; the contouring member 301 is connected to the base plate 302, the base plate 302 having reinforcing ribs 304, the reinforcing ribs 304 being connected to the contouring member 301.
[0014] In this embodiment, the stability of the movable part 303 after folding is ensured by "the movable part 303 is provided with an abutment part 3031, which abuts against the outer wall of the contour part 301 after folding", thus avoiding shaking; "the base plate 302 is provided with a reinforcing rib 304 and connected to the contour part 301", which enhances the structural strength of the connection between the base plate 302 and the contour part 301, resists the stress during folding, and prevents the contour part 301 from being squeezed and warped; the design basis of "the contour part 301 conforms to the shell 10" combined with the support of the reinforcing rib 304 ensures that the contour part 301 is always adapted to the shell 10, maintaining the support effect on other components (such as the pole post 40 and the tab assembly 201).
[0015] In some embodiments, combined with Figure 4 and Figure 5 The thickness of the 304 stiffener is d1mm, and it satisfies 1.5mm≤d1mm≤3.5mm.
[0016] In this embodiment, the thickness d1mm of the reinforcing rib 304 is limited to balance the strength and lightweight requirements: if the thickness is too small, the reinforcement effect will be insufficient, and it will not be able to resist the bending stress that causes the contoured part 301 to warp; if the thickness is too large, it will increase the weight of the cage 30, waste materials, and may even interfere with the space of the sub-cavity 102. This range ensures that the reinforcing rib 304 effectively strengthens the connection between the substrate 302 and the contoured part 301, while avoiding over-design.
[0017] Specifically, d1mm can be any one of 1.5mm, 2mm, 2.5mm, 3mm and 3.5mm or a range between any two of these values.
[0018] In some embodiments, combined with Figure 4 and Figure 5 The height of the 304 stiffener is hmm, and it satisfies 1mm≤hmm≤3mm.
[0019] In this embodiment, the height hmm of the reinforcing rib 304 is limited to control its occupancy of the cavity 102 space and stress transfer efficiency: if the height is too small, the lever arm is short and the stress dispersion effect is poor; if the height is too large, it may interfere with other components (such as the tab assembly 201 and the shell 10), or cause local stress concentration due to excessive rigidity. This range ensures that the reinforcing rib 304 maximizes structural stability within a limited space.
[0020] Specifically, hmm can take any one of 1mm, 1.5mm, 2mm, 2.5mm and 3mm or a range between any two of these values.
[0021] In some embodiments, combined with Figure 3 and Figure 4 The movable component 303 includes a connector 3032, a first plate 3033 and a second plate 3034. The connector 3032 is connected between the first plate 3033 and the base plate 302. The second plate 3034 is set at an angle to the first plate 3033. The second plate 3034 has a protrusion that moves closer to the contouring component 301 and forms an abutment portion 3031.
[0022] In this embodiment, the "connector 3032 connects the first plate 3033 and the base plate 302" to achieve a hinged connection between the movable part 303 and the base plate 302, ensuring folding flexibility; the "second plate 3034 is set at an angle to the first plate 3033" to form a three-dimensional support structure, enhancing the rigidity of the movable part 303; the "second plate 3034 is provided with a protrusion that approaches the contoured part 301 to form an abutment part 3031", so that after folding, the abutment part 3031 acts precisely on the outer wall of the contoured part 301, dispersing the extrusion pressure to the local protrusion and preventing the contoured part 301 from being squeezed and warped as a whole; the combination design of the angle and the protrusion ensures stable contact between the abutment part 3031 and the outer wall of the contoured part 301, without the risk of interference.
[0023] In some embodiments, refer to Figure 2 The first plate 3033 is disposed opposite to the substrate 302, and the tab assembly 201 is disposed between the first plate 3033 and the substrate 302.
[0024] In this embodiment, the "first plate 3033 and substrate 302 are arranged opposite to each other" to form a limiting space for accommodating the tab assembly 201, preventing the tab assembly 201 from loosening and shifting; the "tab assembly 201 is disposed therein" to fix the position of the tab assembly 201 by clamping the first plate 3033 and substrate 302, avoiding the tab assembly 201 pulling the movable part 303 and causing the abutment part 3031 to shift when the folding assembly moves, thereby reducing abnormal compression on the contour part 301; the flat plate structure arranged opposite to each other makes it easy for the tab assembly 201 to be folded up, improving the ease of assembly.
[0025] In some embodiments, refer to Figure 2The second plate 3034 abuts against one end of the lead-out tab assembly 201 of the battery cell 20.
[0026] In this embodiment, "the second plate 3034 abuts against one end of the lead-out tab assembly 201 of the battery cell 20", fixing the axial position of the tab assembly 201 in the sub-cavity 102 and preventing the tab assembly 201 from shifting due to the expansion or vibration of the battery cell 20; "abutting" rather than a hard connection allows for slight deformation of the tab assembly 201, while the second plate 3034 transmits the positional error of the tab assembly 201 to the movable part 303, ensuring that the tab assembly 201 is in a preset folded state when the folding assembly is folded, and avoiding accidental contact between the tab assembly 201 and the contouring part 301 during the folding process.
[0027] In some embodiments, combined with Figure 3 and Figure 4 The substrate 302 is provided with a plug-in plate 3021, and the first plate 3033 is provided with a card hole 3035. The plug-in plate 3021 is at least partially plugged into the card hole 3035.
[0028] In this embodiment, the "plug-in plate 3021 and card hole 3035 plug-in" realizes the detachable / adjustable connection between the movable part 303 and the base plate 302, ensuring that the movable part 303 can be folded relative to the base plate 302 (hinged degree of freedom), and can be locked in position by plugging after folding; "at least partial plugging" allows for certain assembly tolerances, while ensuring connection rigidity and preventing the movable part 303 from loosening and causing the abutment part 3031 to detach from the outer wall of the contour part 301 or to be misaligned and squeezed with the contour part 301.
[0029] In some embodiments, combined with Figures 3 to 5 The reinforcing rib 304 is connected between the plug plate 3021 and the contour piece 301.
[0030] In this embodiment, the "reinforcing rib 304 connects the plug plate 3021 (connection point of the movable part 303) and the contoured part 301". When the movable part 303 is subjected to folding force, the reinforcing rib 304 transfers the stress from the plug plate 3021 to the contoured part 301, dispersing the concentrated load at the connection point and preventing the root of the connection between the contoured part 301 and the base plate 302 from warping due to excessive stress; it also strengthens the force transmission path between the movable part 303 and the contoured part 301, improving the overall structure's resistance to deformation.
[0031] In some embodiments, combined with Figure 3 and Figure 4 The first plate 3033 is provided with a limiting protrusion 3036. When the plug plate 3021 is inserted into the card hole 3035, the limiting protrusion 3036 abuts against the side of the plug plate 3021.
[0032] In this embodiment, the "limiting protrusion 3036 abuts against the side of the plug plate 3021" to limit the displacement of the movable part 303 relative to the substrate 302 in the non-folding direction (such as left and right swaying), ensuring the stability of the movable part 303 after folding; the "side abutment" rather than the end face blocking allows the rotational freedom required for folding, while preventing the movable part 303 from tilting and causing the abutment part 3031 to make skewed contact with the outer wall of the contour part 301, avoiding excessive local pressure that could cause deformation of the contour part 301.
[0033] In some embodiments, combined with Figure 3 and Figure 4 The limiting protrusion 3036 covers part of the card hole 3035, and the plug plate 3021 has a hook 3022 at one end facing the card hole 3035. The hook 3022 is engaged with the bottom of the limiting protrusion 3036.
[0034] In this embodiment, the "hook 3022 engages with the bottom of the limiting protrusion 3036" to form a secondary lock, enhancing the connection reliability between the first plate 3033 and the base plate 302 and preventing the movable part 303 from springing back after folding; the "limiting protrusion 3036 covers part of the card hole 3035" to guide the insertion plate 3021 to be inserted accurately, avoiding misalignment of the movable part 303; the "bottom engagement" utilizes the vertical space of the limiting protrusion 3036 to achieve locking without occupying additional horizontal space, ensuring a compact layout within the sub-cavity 102.
[0035] In some embodiments, combined with Figure 4 and Figure 5 The reinforcing ribs 304 are provided with at least two, and the substrate 302 is provided with an opening 3023 between two adjacent reinforcing ribs 304. The opening 3023 corresponds to at least part of the limiting protrusion 3036.
[0036] In this embodiment, "at least two reinforcing ribs 304" disperse the stress at the connection between the substrate 302 and the contour piece 301, avoiding excessive stress concentration in local stiffness caused by single-point reinforcement; "openings 3023 are provided between adjacent reinforcing ribs 304" reduce the weight of the retainer 30 and reserve buffer space; "the openings 3023 correspond to some of the limiting protrusions 3036" ensure that the movement of the limiting protrusions 3036 is not blocked by the reinforcing ribs 304, ensuring that the limiting function works normally (e.g., there is no structural interference when the limiting protrusions 3036 abut against the side of the plug plate 3021).
[0037] In some embodiments, refer to Figure 3 The contouring component 301 includes a top wall 3011 and a side wall 3012. The top wall 3011 is connected to the substrate 302. The thickness of the top wall 3011 is d2, and the thickness of the substrate 302 is d3, and both satisfy 0.1mm≤(d2-d3)mm≤3.1mm.
[0038] In this embodiment, the range of the difference between the thickness d2 of the top wall 3011 and the thickness d3 of the substrate 302 is defined to balance the rigidity matching between the contouring component 301 and the substrate 302: if the difference is too small, the contouring component 301 is prone to deformation with the substrate 302 (the substrate 302 is subjected to bending stress, causing the contouring component 301 to warp); if the difference is too large, stress concentration will occur at the connection between the top wall 3011 and the substrate 302 due to the sudden change in stiffness, which will exacerbate the risk of warping. This range ensures that the contouring component 301 maintains its shape stability under the pressure of the abutment portion 3031, maintaining its conformal fit with the housing 10.
[0039] Specifically, (d2-d3)mm can take any one of the following values: 0.1mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, and 3.1mm, or a range between any two of these values.
[0040] In some embodiments, refer to Figure 3 The thickness d2mm of the top wall 3011 satisfies 1.1mm≤d2mm≤3.4mm, and / or the thickness d3mm of the substrate 302 satisfies 0.3mm≤d3mm≤1.2mm.
[0041] In this embodiment, the thickness range of either the top wall 3011 (d2mm) or the substrate 302 (d3mm) is defined separately to precisely control the strength of each component: if the top wall 3011 is too thin, it is easily deformed by the abutment part 3031; if it is too thick, it increases the weight and deviates from the conformal shape of the shell 10. If the substrate 302 is too thin, it cannot support the reinforcing rib 304 and the movable part 303; if it is too thick, it occupies too much space in the sub-cavity 102. This range ensures that the conformal part 301 and the substrate 302 deform together with minimal deformation under folding force, maintaining the adaptive support effect on the shell 10.
[0042] Specifically, d2mm can be any one of 1.1mm, 1.5mm, 2mm, 2.5mm, 3mm and 3.4mm or a range between any two of these values.
[0043] Specifically, d3mm can be any one of 0.3mm, 0.5mm, 1mm and 1.2mm or fall within the range of any two of these values.
[0044] Secondly, embodiments of this application provide an electrical device that includes the battery of the first aspect. Therefore, the electrical device of the second aspect possesses all the technical effects of the battery of the first aspect, the specific technical effects of which will not be elaborated further. It should be understood that the electrical device includes other components besides the battery, which will not be described in detail here.
[0045] It should be noted that battery devices can serve as the operating power source for electrical devices, or as the driving power source for electrical devices, replacing or partially replacing fuel or natural gas to provide propulsion for vehicles. Electrical devices include devices in a wide range of technological fields such as energy storage equipment, electric ships, aircraft, laptops, power tools, electric bicycles, electric motorcycles, electric cars, military equipment, and aerospace.
[0046] In particular, the term "and / or" in this application should be understood as follows: In the first case, the term “and / or” between the first subject and the second subject includes any of the following meanings: (1) only the first subject; (2) only the second subject; and (3) both the first subject and the second subject.
[0047] In the second case, the term "and / or" between the last two of three or more subjects means including at least one of the subjects. For example, "first subject, second subject and / or third subject" has the same meaning as "first subject and / or second subject and / or third subject", specifically including the following combinations: (1) only the first subject; (2) only the second subject; (3) only the third subject; (4) first subject and second subject and no third subject; (5) first subject and third subject and no second subject; (6) second subject and third subject and no first subject; and (7) first subject, second subject and third subject; Furthermore, the character " / " in this application indicates that the objects before and after it are in an "or" relationship.
[0048] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.
Claims
1. A battery, characterized in that, include: The shell (10) includes a main cavity (101) and a sub-cavity (102) that are connected to each other. The battery cell (20) is located in the main cavity (101) and leads out multiple electrodes to the sub-cavity (102). The multiple electrodes are gathered together to form an electrode group (201). A retainer (30) is disposed within the sub-cavity (102) and includes a contouring member (301) and a folding assembly. The folding assembly includes a base plate (302) and a movable member (303). The movable member (303) can be folded relative to the base plate (302). The movable member (303) is provided with an abutment portion (3031). After the movable member (303) is folded, the abutment portion (3031) abuts against the outer wall of the contouring member (301). The contouring member (301) is connected to the base plate (302). The base plate (302) is provided with reinforcing ribs (304). The reinforcing ribs (304) are connected to the contouring member (301).
2. The battery according to claim 1, characterized in that, The thickness of the reinforcing rib (304) is d1mm, and satisfies 1.5mm≤d1mm≤3.5mm.
3. The battery according to claim 1, characterized in that, The height of the reinforcing rib (304) is hmm, and satisfies 1mm≤hmm≤3mm.
4. The battery according to claim 1, characterized in that, The movable component (303) includes a connector (3032), a first plate (3033), and a second plate (3034). The connector (3032) is connected between the first plate (3033) and the base plate (302). The second plate (3034) is set at an angle to the first plate (3033). The second plate (3034) has a protrusion that moves toward the contouring component (301) and forms an abutment portion (3031).
5. The battery according to claim 4, characterized in that, The first plate (3033) is disposed opposite to the substrate (302), and the tab assembly (201) is disposed between the first plate (3033) and the substrate (302).
6. The battery according to claim 4, characterized in that, The second plate (3034) abuts against one end of the electrode assembly (201) from which the battery cell (20) is led out.
7. The battery according to claim 5, characterized in that, The substrate (302) is provided with a plug-in plate (3021), and the first plate (3033) is provided with a card hole (3035). The plug-in plate (3021) is at least partially plugged into the card hole (3035).
8. The battery according to claim 7, characterized in that, The reinforcing rib (304) is connected between the plug plate (3021) and the contour piece (301).
9. The battery according to claim 7, characterized in that, The first plate (3033) is provided with a limiting protrusion (3036). When the plug plate (3021) is inserted into the card hole (3035), the limiting protrusion (3036) abuts against the side of the plug plate (3021).
10. The battery according to claim 9, characterized in that, The limiting protrusion (3036) covers part of the card hole (3035), and the plug plate (3021) is provided with a hook (3022) at one end facing the card hole (3035), and the hook (3022) engages with the bottom of the limiting protrusion (3036).
11. The battery according to claim 10, characterized in that, The reinforcing rib (304) is provided in at least two parts, and the substrate (302) is provided with an opening (3023) between two adjacent reinforcing ribs (304), and the opening (3023) corresponds at least to a portion of the limiting protrusion (3036).
12. The battery according to any one of claims 1 to 11, characterized in that, The contouring component (301) includes a top wall (3011) and a side wall (3012). The top wall (3011) is connected to the substrate (302). The thickness of the top wall (3011) is d2, and the thickness of the substrate (302) is d3, satisfying 0.1mm≤(d2-d3)mm≤3.1mm.
13. The battery according to claim 12, characterized in that, The thickness d2mm of the top wall (3011) satisfies 1.1mm≤d2mm≤3.4mm, and / or the thickness d3mm of the substrate (302) satisfies 0.3mm≤d3mm≤1.2mm.
14. An electrical appliance, characterized in that, Includes the battery as described in any one of claims 1 to 13.