Battery shell assembly and battery

Abstract

The utility model discloses a battery shell assembly and a battery, and the battery shell assembly comprises a shell end cover which is provided with a mounting hole; the polar column is arranged in the mounting hole in a penetrating manner and is provided with a convex part penetrating out of the mounting hole, and the convex part is provided with a clamping groove; the upper insulating part comprises a clamping part arranged corresponding to the clamping groove, the clamping part comprises an elastic buckle, the elastic buckle is extruded when being clamped into the corresponding clamping groove and is clamped with the corresponding clamping groove in a matched mode when being clamped in place, the upper insulating part surrounds the periphery of the pole, and the bottom of the upper insulating part abuts against the outer surface of the shell end cover in an attached mode. When the upper insulating part is installed, the elastic buckle of the clamping part is clamped into the corresponding clamping groove of the pole, so that the elastic buckle is matched and clamped with the corresponding clamping groove, the connection between the upper insulating part and the pole is realized by adopting a clamping mode, the assembly process is simple, the assembly is convenient, and the assembly cost can be correspondingly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a battery housing assembly. In addition, the utility model also relates to a battery comprising the battery housing assembly. Background Art

[0002] As a key component of the battery, the battery housing assembly is used to contain and seal the battery cell. The battery housing assembly includes an end cap, a pole and an upper plastic, and the upper plastic is used to insulate the pole and the housing.

[0003] In the prior art, the upper plastic is usually connected to the end cover by riveting, or is injected on the outer periphery of the pole by integral molding. However, these two methods require special riveting or injection molding processes for the assembly of the battery housing assembly, and the assembly process is complicated and costly.

[0004] Therefore, how to simplify the assembly process of the battery housing assembly and reduce the cost is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a battery housing assembly, which has a simple assembly process and low cost.

[0006] Another object of the utility model is to provide a battery comprising the battery housing assembly, wherein the assembly process of the battery housing assembly is simple and the cost is low.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A battery housing assembly, comprising:

[0009] A shell end cover, wherein the shell end cover is provided with a mounting hole;

[0010] A pole, the pole is passed through the mounting hole and has a protruding portion passing through the mounting hole, and the protruding portion is provided with a slot;

[0011] The upper insulating member includes a clamping member arranged corresponding to the slot, and the clamping member includes an elastic buckle. The elastic buckle is squeezed when it is inserted into the corresponding slot, and is clamped with the corresponding slot when it is inserted into place; the upper insulating member surrounds the outer periphery of the pole, and the bottom of the upper insulating member is in contact with the outer surface of the shell end cover.

[0012] Optionally, the clamping member is provided with a clamping base, the elastic clamp comprises a spring sheet, one end of the spring sheet is fixed to a side of the clamping base facing away from the shell end cover, and the spring sheet is inclined in a direction away from the clamping base.

[0013] Optionally, the card slot includes:

[0014] A recessed groove for accommodating the buckle base;

[0015] The clamping groove portion is formed with a vertical surface perpendicular to the direction of the buckle base, and the elastic sheet abuts against the vertical surface.

[0016] Optionally, the pole is provided with a slope guide groove connected to the slot, the slope guide groove has an inclined surface and a straight surface, the distance between the inclined surface and the straight surface gradually increases from approaching the slot to away from the slot, and the straight surface is arranged between the inclined surface and the shell end cover; the clamping piece is provided with a wedge-shaped slope for fitting with the slope guide groove.

[0017] Optionally, the clamping member further comprises a boss, which is connected to a side of the wedge-shaped slope away from the buckle base and extends in a direction away from the wedge-shaped slope.

[0018] Optionally, the pole is provided with a slot corresponding to the slot, and the connector is provided with an embedded plane portion for inserting into the slot, and the embedded plane portion is used to withstand pressure in a direction perpendicular to the plane where the upper insulating member is located after the elastic buckle is clamped with the slot.

[0019] Optionally, the clamping member is provided with a protrusion, which is located at the radial outer edge of the embedded plane portion and protrudes from the surface of the embedded plane portion, so as to fit and abut against the outer periphery of the pole after the elastic buckle is clamped with the slot.

[0020] Optionally, the number of the card slots is two, and the two card slots are symmetrically arranged; the upper insulating member includes two card connectors, and the two card connectors are symmetrically arranged and enclose the outer periphery of the pole.

[0021] Optionally, the range of the outer diameter dimension a of the upper insulating member as a whole includes: 12mm≤a≤30mm;

[0022] The range of the outer diameter dimension b of the embedded plane portion includes: 10mm≤b≤a-2mm;

[0023] The range of the inner diameter dimension c of the embedded plane portion includes: 6mm≤c≤b-4mm.

[0024] Optionally, the range of the width w1 of the elastic buckle along the clamping direction is: w1 ≥ 1 mm; the range of the width w2 of the wedge-shaped slope is: w2 ≥ 2 mm;

[0025] The sum of the widths w6 of the clamping slot and the ramp guide slot is in the range of: w6=w2+w1.

[0026] Optionally, the relationship between the maximum thickness dimension h1 of the upper insulating member and the thickness h2 of the buckle base is: 0.2mm≤h1-h2≤1.5mm, h2≥0.5mm.

[0027] Optionally, the range of the outer diameter dimension w4 of the pole includes: 8mm≤w4≤28mm; the range of the distance h4 between the top of the maximum opening end of the slope guide groove and the top surface of the pole is: h4≥0.7mm.

[0028] A battery comprises any one of the above-mentioned battery casing components and a battery cell arranged in the battery casing component.

[0029] The battery shell assembly provided by the utility model has the following beneficial effects: when installing the upper insulating member, the elastic buckle of the clamping member is clamped into the corresponding pole slot, so that the elastic buckle and the corresponding slot can be clamped together. When the clamping member and the corresponding slot are clamped tightly, the installation of the upper insulating member is realized, so that the upper insulating member is surrounded by the outer periphery of the pole, and the bottom of the upper insulating member is fitted and abutted against the outer surface of the shell end cover, so as to play the role of insulating the pole and the shell end cover.

[0030] It can be seen that the battery housing assembly changes the installation method of the upper insulating member in the prior art. This embodiment adopts a snap-on method to achieve the connection between the upper insulating member and the pole. The assembly process is simple and the assembly is convenient, so the assembly cost can be reduced accordingly.

[0031] The battery provided by the utility model comprises the above-mentioned battery housing assembly and has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the structure of a battery housing assembly provided in a specific embodiment of the utility model;

[0034] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0035] Figure 3 for Figure 1 A side view from one perspective;

[0036] Figure 4 for Figure 3Cross-sectional view of the middle BB;

[0037] Figure 5 for Figure 4 A partial enlarged schematic diagram of C in the middle;

[0038] Figure 6 for Figure 1 A side view from another perspective;

[0039] Figure 7 for Figure 6 Cross-sectional view of the middle DD;

[0040] Figure 8 for Figure 7 A partial enlarged schematic diagram of middle E;

[0041] Fig. 9 It is a structural schematic diagram of a card connector;

[0042] Fig.10 for Fig. 9 A top view of

[0043] Fig.11 for Fig. 9 The main view;

[0044] Fig.12 for Fig.11 A partial enlarged schematic diagram of middle F;

[0045] Fig.13 It is a schematic diagram of the structure of the pole;

[0046] Fig.14 for Fig.13 A cross-sectional view from one perspective;

[0047] Fig.15 for Fig.14 A partial enlarged schematic diagram of G in the middle;

[0048] Fig.16 for Fig.13 The main view;

[0049] Fig.17 for Fig.13 A cross-sectional view from another perspective.

[0050] Reference numerals:

[0051] 1-shell end cover; 2-pole; 21-slot; 211-displacement slot; 212-slot; 213-vertical surface; 22-slope guide groove; 221-inclined surface; 222-straight surface; 23-slot; 24-protrusion; 3-upper insulating member; 31-slot; 311-spring; 312-buckle bottom bracket; 313-wedge slope; 314-boss; 315-embedded plane portion; 316-protrusion; 4-shell; 5-lower insulating member; 6-sealing ring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] The core of the utility model is to provide a battery housing assembly, which has a simple assembly process and low cost. Another core of the utility model is to provide a battery including the battery housing assembly, which has a simple assembly process and low cost.

[0054] Please refer to Figures 1 to 5 The present utility model provides a battery housing assembly, including a housing end cover 1, a pole 2 and an upper insulating member 3, wherein the housing end cover 1 is provided with a mounting hole; the pole 2 is provided through the mounting hole and has a protrusion 24 that passes through the mounting hole, and the protrusion 24 is provided with a card slot 21 (such as Fig.14 As shown); the upper insulating member 3 includes a clamping member 31 arranged corresponding to the clamping slot 21, and the clamping member 31 includes an elastic buckle, which is squeezed when it is inserted into the corresponding clamping slot 21, and is clamped with the corresponding clamping slot 21 when it is inserted into place; the upper insulating member 3 is surrounded by the outer periphery of the pole 2, and the bottom of the clamping member 31 is in contact with the outer surface of the shell end cover 1.

[0055] That is to say, when installing the upper insulating member 3, the elastic buckle of the clamping member 31 is inserted into the corresponding clamping slot 21 of the pole 2, so that the elastic buckle and the corresponding clamping slot 21 can be engaged with each other. When the clamping member 31 and the corresponding clamping slot 21 are clamped, the installation of the upper insulating member 3 is realized, so that the upper insulating member 3 is surrounded by the outer periphery of the pole 2, and the bottom of the upper insulating member 3 is in contact with the outer surface of the shell end cover 1, so as to insulate the pole 2 from the shell end cover 1.

[0056] It can be seen that the embodiment of the utility model changes the installation method of the upper insulating member 3 in the prior art. The embodiment adopts a snap-on method to achieve the connection between the upper insulating member 3 and the pole 2. The assembly process is simple and the assembly is convenient, so the assembly cost can be reduced accordingly.

[0057] It should be noted that the present embodiment does not limit the specific material of the upper insulating member 3, as long as it can insulate the pole 2 from the shell end cover 1. For example, the upper insulating member 3 can be an upper plastic, of course, it can also be other structural members with insulating functions. In addition, the present embodiment does not limit the specific material of the pole 2. The pole 2 serves to guide electricity from the winding core inside the battery cell in the battery shell assembly to the outside. The pole 2 is generally a metal column. For example, the pole 2 is an aluminum pole 2 or a copper pole 2, or a composite pole 2. In addition, the shape of the pole 2 is not limited to a cylindrical shape, and can also be a square or other shaped column.

[0058] In addition, it should be noted that this embodiment does not limit the structures of other parts of the battery housing assembly. Figure 5 In some embodiments, the battery shell assembly further includes a shell 4, a lower insulating member 5 and a sealing ring 6. The shell 4 is a container for accommodating a battery cell. The shell end cover 1 is disposed at one end of the shell 4. The shell end cover 1 and the shell 4 can be connected together as a separate structure, or can be an integrally formed structural member; the lower insulating member 5 is located on the inner side of the shell end cover 1, and is used to physically insulate the electrode on the end face of the battery cell from the shell 4; the sealing ring 6 is located between the pole 2 and the shell end cover 1, and plays a sealing role between the pole 2 and the shell end cover 1.

[0059] It is understandable that when the upper insulating member 3 is clamped with the pole 2 by the clamping member 31, the pole 2 exerts a large compressive force on the sealing ring 6. Moreover, since the bottom of the upper insulating member 3 as a whole is in contact with the outer side of the shell end cover 1, the shell end cover 1 can be used to disperse the pressure. In this way, while ensuring continuous pressure on the sealing ring 6, the overall plane of the upper insulating member 3 is not easy to deform. In addition, there is a physical limit between the elastic buckle of the upper insulating member 3 and the slot 21 of the pole 2, so that the upper insulating member 3 is not easy to fall off, ensuring the stability of the sealing of the pole 2. It can be seen that the connection method between the upper insulating member 3 and the pole 2 provided in the embodiment of the utility model not only simplifies the assembly process and reduces the assembly cost, but also improves the sealing of the pole 2, avoids the complicated sealing design, and reduces the higher cost caused by the complicated sealing design.

[0060] It should be noted that the above embodiment does not limit the specific formation method of the elastic buckle, as long as the elastic buckle is elastic and can be squeezed and deformed when the elastic buckle is inserted into the corresponding slot 21, so that the elastic buckle can be inserted into the slot 21, and can be elastically reset and clamped with the corresponding slot 21 after being inserted into place.

[0061] Please refer to Fig. 9In some embodiments, the clamping member 31 is provided with a clamping base 312, and the elastic clamp includes a spring piece 311, one end of the spring piece 311 is fixed to a side of the clamping base 312 away from the housing end cover 1, and the spring piece 311 is tilted in a direction away from the clamping base 312. It can be understood that the fixed end of the spring piece 311 is fixed to an end of the clamping base 312 close to the pole 2, and the free end of the spring piece 311 extends in a direction away from the pole 2, so that the spring piece 311 is clamped with the slot 21. In other words, the spring piece 311 is provided in this embodiment so that the spring piece 311 and the slot 21 are clamped and limited, and the structure is simple and the setting is convenient. It can be understood that the spring piece 311 is tilted in a direction away from the pole 2 and away from the buckle base 312, so that there is an oblique opening between the spring piece 311 and the buckle base 312. When the spring piece 311 is inserted into the slot 21, the spring piece 311 is squeezed by the structure of the pole 2 and can be elastically deformed toward the oblique opening. When the spring piece 311 is elastically deformed to a certain extent, the spring piece 311 contacts the buckle base 312, and the buckle base 312 supports the spring piece 311, so as to avoid excessive deformation of the spring piece 311 and affect the service life of the spring piece 311. When the spring piece 311 reaches the position of the slot 21, the spring piece 311 bounces up and resets to lock with the slot 21 under the action of its own elastic restoring force.

[0062] Furthermore, the above embodiment does not limit the specific shape of the card slot 21, as long as the card slot 21 can be fastened with the card connector 31. In some embodiments, the card slot 21 includes a clearance slot portion 211 and a card connector portion 212, the clearance slot portion 211 is used to accommodate the buckle base 312; the card connector portion 212 is connected to the clearance slot portion 211, and the card connector portion 212 is formed with a vertical surface 213 along a direction perpendicular to the buckle base 312, and the spring piece 311 abuts against the vertical surface 213. It can be understood that when the clamping member 31 is inserted into the clamping slot 21, the clamping base 312 and the spring piece 311 first pass through the yielding groove portion 211, and are squeezed by the groove wall of the yielding groove portion 211, and the spring piece 311 is elastically deformed, and the spring piece 311 is deformed toward the oblique opening between it and the clamping base 312 until the spring piece 311 contacts the clamping base 312. When the spring piece 311 completely enters the clamping groove portion 212, the spring piece 311 is no longer squeezed by the groove wall of the yielding groove portion 211. Under the action of the elastic restoring force of the spring piece 311 itself, the spring piece 311 rebounds and resets, and the spring piece 311 bounces into the clamping groove portion 212, and the end of the spring piece 311 away from the pole 2 abuts against the vertical surface 213 to limit the position, so that the spring piece 311 and the clamping slot 21 are clamped.

[0063] In addition, in the process of the elastic buckle being inserted into the slot 21, in order to provide a certain guide for the elastic buckle, please combine Fig. 9 and Fig.14In some embodiments, the pole 2 is provided with a slope guide groove 22 connected to the card slot 21, the slope guide groove 22 has an inclined surface 221 and a straight surface 222, the distance between the inclined surface 221 and the straight surface 222 gradually increases from the direction close to the card slot 21 to the direction away from the card slot 21, and the straight surface 222 is arranged between the inclined surface 221 and the shell end cover 1; the clamping piece 31 is provided with a wedge-shaped slope 313 for matching with the slope guide groove 22. That is to say, in the process of inserting the spring piece 311 into the slot 21, the spring piece 311 is inserted from the largest end of the ramp guide slot 22, and the spring piece 311 is opposite to the inclined surface 221 of the ramp guide slot 22 until the elastic buckle is ejected into the slot 21. During the insertion process, the ramp guide slot 22 has a guiding function to facilitate the insertion of the spring piece 311. At the same time, the inclined surface 221 gradually applies an extrusion force to the spring piece 311 to make the spring piece 311 deform smoothly and avoid causing the spring piece 311 to deform significantly in an instant; moreover, during the insertion process, the wedge-shaped slope 313 gradually enters the ramp guide slot 22, and as the insertion action proceeds, the wedge-shaped slope 313 finally fits with the ramp guide slot 22, so as to improve the stability of the insertion of the elastic buckle and the reliability of the connection between the clamping member 31 and the pole 2 after clamping. It can be understood that the wedge-shaped slope 313 is used to face the inclined surface 221 of the ramp guide groove 22 , and therefore, the inclined direction of the wedge-shaped slope 313 is the same as the inclined direction of the elastic sheet 311 .

[0064] Further, in some embodiments, one end of the wedge-shaped slope 313 is connected to the buckle base 312, and the size of the wedge-shaped slope 313 gradually increases from the end of the wedge-shaped slope 313 connected to the buckle base 312 to the end away from the buckle base 312. That is, in this embodiment, the smallest end of the wedge-shaped slope 313 is connected to the buckle base 312, and the wedge-shaped slope 313 extends from the buckle base 312 to the direction away from the buckle base 312. This structure is simple and easy to process.

[0065] In addition, please continue to refer to Fig. 9 In some embodiments, the clamping member 31 further includes a boss 314, which is connected to the side of the wedge-shaped slope 313 away from the buckle base 312 and extends in a direction away from the wedge-shaped slope 313. In other words, the boss 314 is connected to the largest end of the wedge-shaped slope 313. When the spring piece 311 is inserted into the slot 21 and the wedge-shaped slope 313 is matched with the slope guide groove 22, the boss 314 is located radially outside the pole 2. The boss 314 increases the area where the bottom of the clamping member 31 is in contact with the outer surface of the housing end cover 1, improves the push-pull resistance of the clamping member 31 in the radial plane of the pole 2, and improves the overall strength of the clamping member 31.

[0066] In addition, please combine Figure 6-Figure 9 , Fig.16 and Fig.17In some embodiments, the pole 2 is provided with a slot 23 corresponding to the slot 21, and the clamping member 31 is provided with an embedded plane portion 315 for inserting into the slot 23. The embedded plane portion 315 is used to withstand the pressure in the direction perpendicular to the plane where the upper insulating member 3 is located after the elastic buckle is clamped with the slot 21. That is, in the process of clamping the elastic buckle into the slot 21, the embedded plane portion 315 is inserted into the slot 23. When the elastic buckle is clamped with the slot 21, the embedded plane portion 315 is located in the slot 23, and withstands the pressure from the direction perpendicular to the plane where the upper insulating member 3 is located, and disperses the pressure to the entire upper insulating member 3.

[0067] For further information, please refer to Figure 8 and Fig. 9 In some embodiments, the clamping member 31 is provided with a protrusion 316, which is located at the radial outer edge of the embedded plane portion 315 and protrudes from the surface of the embedded plane portion 315, so as to fit and abut against the outer periphery of the pole 2 after the elastic buckle is clamped with the clamping slot 21. That is to say, in the process of inserting the embedded plane portion 315 into the slot 23, the protrusion 316 slides along the outer side of the pole 2, plays a role of sliding limit, and ensures that the embedded plane portion 315 is smoothly inserted into the slot 23. When the elastic buckle is clamped with the clamping slot 21, the protrusion 316 fits and abuts against the outer periphery of the pole 2, so as to realize the radial limit function of the clamping member 31 and the pole 2.

[0068] It should be noted that the above embodiments do not limit the specific number of the clamping parts 31. The clamping parts 31 may be one, two, three or other numbers, and those skilled in the art may set the number according to actual needs. Figure 1-3 As shown, in some embodiments, the number of the clamping members 31 is two, and correspondingly, the number of the slots 21 is two, the two slots 21 are symmetrically arranged, and the two clamping members 31 are symmetrically arranged. When the two clamping members 31 are clamped with the corresponding slots 21, the two clamping members 31 are enclosed on the outer periphery of the pole 2. That is, a single clamping member 31 is half of the upper insulating member 3, and the two clamping members 31 have the same structure and are mirror-imaged. Figure 4 As shown, in some embodiments, a single clip 31 is provided with two protrusions 316, and the two protrusions 316 are axially symmetrically arranged. When the elastic buckle is engaged with the slot 21, the two protrusions 316 hold the pole 2 from both sides of the pole 2, thereby achieving the fixation of the clip 31 in the direction perpendicular to the insertion direction within the plane where the clip 31 is located.

[0069] In addition, it can be understood that in order to improve the structural strength of the pole 2, the pole 2 is a solid structure except for the slotted portion. When the embedded planar portion 315 is inserted into the slot 23, in order to avoid the solid structure of the pole 2, in some embodiments, the clamp 31 is provided with a center hole, and an embedded planar portion 315 is formed between the center hole and the raised portion 316.

[0070] In addition, in order to make the upper insulating member 3 have better comprehensive performance, please refer to Fig.10 In some embodiments, the range of the outer diameter dimension a of the upper insulating member 3 as a whole includes: 12mm≤a≤30mm; the range of the outer diameter dimension b of the embedded plane portion 315 includes: 10mm≤b≤a-2mm; the range of the inner diameter dimension c of the embedded plane portion 315 includes: 6mm≤c≤b-4mm. It can be understood that the outer diameter dimension a of the upper insulating member 3 as a whole is also the maximum radial dimension of the upper insulating member 3 as a whole formed by more than two clamping members 31; the inner diameter dimension c of the embedded plane portion 315 is also the minimum radial dimension of the upper insulating member 3 as a whole formed by more than two clamping members 31. Due to this clamping method, the upper insulating member 3 as a whole will be subjected to pressure from the pole 2 and the shell end cover 1 in a direction perpendicular to the plane where the upper insulating member 3 is located. When the outer diameter dimension a of the upper insulating member 3 is less than 12 mm, the upper insulating member 3 will be subjected to excessive pressure on the surface of the shell end cover 1 and deformed or even broken; when the outer diameter dimension a of the upper insulating member 3 is greater than 30 mm, the entire upper insulating member 3 occupies too much space, and is not advantageous in terms of cost and utilization. Similarly, because the embedded plane portion 315 is a direct pressure-bearing area, when the outer diameter dimension b of the embedded plane portion 315 is too small, it is easy to deform and break. In addition, there should be at least a 1mm distance between the outer diameter dimension b of the embedded plane portion 315 and the outer diameter dimension a of the upper insulating member 3 as a whole, that is, the width of the protrusion 316 should be at least 1 mm, otherwise the protrusion 316 is easy to deform when it is pressed in a direction perpendicular to the insertion direction in the plane where the clamping member 31 is located. Therefore, 10mm≤b≤a-2mm. In addition, when the inner diameter c of the embedded plane portion 315 is less than 6 mm, it means that the minimum diameter of the internal slot 21 of the pole 2 is less than 6 mm. This will be the weak area of ​​the pole 2, which is prone to vibration cracking or pressure cracking. When c is greater than b-4, it means that the area of ​​the upper insulating member 3 embedded in the plane is too small and the upper insulating member 3 is not strong enough.

[0071] In addition, please combine Fig.10 and Fig.14 In some embodiments, the width w1 of the elastic buckle along the clamping direction is in the range of: w1 ≥ 1 mm; the width w2 of the wedge-shaped slope 313 is in the range of: w2 ≥ 2 mm; the sum w6 of the widths of the clamping slot 21 and the slope guide groove 22 is in the range of: w6 = w2 + w1. It can be understood that if the width w1 of the elastic buckle along the clamping direction is too small, it will not have a clamping effect; if the width w2 of the wedge-shaped slope 313 is too small, it will not have a guiding effect. The sum w6 of the widths of the clamping slot 21 and the slope guide groove 22 = w2 + w1, so that the clamping slot 21 just fits with the elastic buckle, and the slope guide groove 22 just fits with the wedge-shaped slope 313, making the structure compact.

[0072] Also, please refer to Fig.11 In some embodiments, the relationship between the maximum thickness dimension h1 of the upper insulating member 3 and the thickness h2 of the snap base 312 is: 0.2mm≤h1-h2≤1.5mm, h2≥0.5mm. It should be noted that when the dimension h1-h2 is too small, there will be slippage when the plane where the snap connector 31 is located is locked perpendicular to the insertion direction, which will cause the direction to be unable to be effectively locked. When the dimension h1-h2 is too large, the snap connector 31 will occupy too much height space, which will have side effects on the space utilization and cost of the battery cell. When h2 is less than 0.5, the strength of the upper insulating member 3 is not enough, and there is a risk of breakage.

[0073] Also, please refer to Fig.12 In some embodiments, the thickness h3 of the spring 311 is in the range of: h3 ≥ 0.3 mm; the contact width w3 of the connection between the spring 311 and the clamping member 31 is in the range of: w3 ≥ 0.2 mm; the clamping height h5 of the clamping slot 21 is in the range of: h5 = h3. It should be noted that when the thickness h3 of the spring 311 is less than 0.3 mm, the spring 311 is not strong enough and will easily break due to vibration; in addition, the contact width w3 of the connection between the spring 311 and the clamping member 31 affects the elasticity and strength of the spring 311. If w3 is too small, the strength of the spring 311 is too low and it is easy to break. If w3 is too large, the elasticity of the spring 311 is insufficient and it is difficult for the spring 311 to be clamped into the clamping slot 21. It can be understood that the clamping height h5 = h3 of the clamping slot 21 can make the end face of the spring 311 fully abut against the clamping slot 21 and improve the stability and reliability of the clamping.

[0074] In addition, please combine Fig.12 and Fig.15 In some embodiments, the relationship between the inclination angle r1 of the spring piece 311, the angle r2 of the wedge slope 313, the angle r4 of the slot 21 and the angle r3 of the slope guide groove 22 is: r1=r4≥r2=r3, and r1, r2, r3, r4 are all ≥15°. It should be noted that r1=r4, r2=r3 are conducive to ensuring that the spring piece 311 fully cooperates with the slot 21 and that the slope guide groove 22 and the wedge slope 313 are completely matched; in addition, r1=r4≥r2=r3 is conducive to the smooth insertion of the spring piece 311 into the slot 21 and the stability of the spring piece 311 into the slot 21; further, r1, r2, r3, r4 are all ≥15°, which is conducive to the smooth insertion of the spring piece 311 into the slot 21 and the smooth fit of the wedge slope 313 with the slope guide groove 22, otherwise, it will be difficult for the spring piece 311 to be inserted into the slot 21.

[0075] Also, please refer to Fig.14In some embodiments, the range of the outer diameter dimension w4 of the pole 2 includes: 8mm≤w4≤28mm; the range of the distance h4 between the top of the maximum opening end of the slope guide groove 22 and the top surface of the pole 2 is: h4≥0.7mm. It can be understood that when the pole 2 is too small, the strength of the pole 2 will be reduced, and the single-sided pressure is too large and it is easy to crack and deform; when the pole 2 is too large, it will affect the space utilization and cost. When h4 is less than 0.7mm, during the clamping process of the spring piece 311 and the slot 21, stress concentration will occur at the notch of the slope guide slot 22 and break upward.

[0076] In addition to the above-mentioned battery shell assembly, the utility model also provides a battery including the battery shell assembly disclosed in the above-mentioned embodiment, and the battery also includes a battery cell, and the battery cell is arranged in the battery shell assembly. For the structure of other parts of the battery, please refer to the prior art and will not be repeated in this article.

[0077] The focus of this embodiment is to use the battery housing assembly disclosed in any one of the above embodiments to achieve the same beneficial effects as the above battery housing assembly.

[0078] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0079] The battery housing assembly and the battery provided by the utility model are introduced in detail above. The principle and implementation method of the utility model are explained in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A battery housing assembly, characterized in that: include: A shell end cover (1), wherein the shell end cover (1) is provided with a mounting hole; A pole (2), the pole (2) being inserted through the mounting hole and having a protruding portion (24) extending through the mounting hole, the protruding portion (24) being provided with a slot (21); The upper insulating member (3) comprises a clamping member (31) arranged corresponding to the clamping slot (21), the clamping member (31) comprising an elastic buckle, the elastic buckle being squeezed when clamped into the corresponding clamping slot (21), and being locked in place with the corresponding clamping slot (21); the upper insulating member (3) is surrounded by the outer periphery of the pole (2), and the bottom of the upper insulating member (3) is in contact with the outer surface of the housing end cover (1).

2. The battery housing assembly according to claim 1, characterized in that: The clamping member (31) is provided with a clamping base (312), the elastic clamp comprising a spring sheet (311), one end of the spring sheet (311) being fixed to a side of the clamping base (312) facing away from the shell end cover (1), and the spring sheet (311) being arranged to be inclined in a direction away from the clamping base (312).

3. The battery housing assembly according to claim 2, characterized in that: The card slot (21) comprises: A clearance groove (211) for accommodating the buckle base (312); A snap-fit ​​groove portion (212), the snap-fit ​​groove portion (212) being formed with a vertical surface (213) along a direction perpendicular to the snap-fit ​​base (312), and the spring sheet (311) abutting against the vertical surface (213).

4. The battery housing assembly according to claim 2, characterized in that: The pole (2) is provided with a slope guide groove (22) connected to the clamping groove (21); the slope guide groove (22) has an inclined surface (221) and a straight surface (222); the distance between the inclined surface (221) and the straight surface (222) gradually increases in a direction from approaching the clamping groove (21) to away from the clamping groove (21); the straight surface (222) is arranged between the inclined surface (221) and the housing end cover (1); and the clamping member (31) is provided with a wedge-shaped slope (313) for fitting with the slope guide groove (22).

5. The battery housing assembly according to claim 4, characterized in that: The clamping member (31) further comprises a boss (314), wherein the boss (314) is connected to a side of the wedge-shaped slope (313) away from the buckle base (312) and extends in a direction away from the wedge-shaped slope (313).

6. The battery housing assembly according to any one of claims 1 to 5, characterized in that: The pole (2) is provided with a slot (23) corresponding to the clamping slot (21), and the clamping piece (31) is provided with an embedded plane portion (315) for inserting into the slot (23), and the embedded plane portion (315) is used to withstand pressure in a direction perpendicular to the plane where the upper insulating piece (3) is located after the elastic buckle is clamped with the clamping slot (21).

7. The battery housing assembly according to claim 6, characterized in that: The clamping member (31) is provided with a protrusion (316), the protrusion (316) being located at the radial outer edge of the embedded plane portion (315) and protruding from the surface of the embedded plane portion (315) so as to fit and abut against the outer periphery of the pole (2) after the elastic buckle is clamped with the clamping groove (21).

8. The battery housing assembly according to any one of claims 1 to 5, characterized in that: The number of the clamping slots (21) is two, and the two clamping slots (21) are symmetrically arranged; the upper insulating member (3) comprises two clamping members (31), and the two clamping members (31) are symmetrically arranged and enclose the outer periphery of the pole (2).

9. The battery housing assembly according to claim 6, characterized in that: The range of the outer diameter dimension a of the upper insulating member (3) as a whole includes: 12 mm ≤ a ≤ 30 mm; The range of the outer diameter dimension b of the embedded plane portion (315) includes: 10mm≤b≤a-2mm; The range of the inner diameter dimension c of the embedded plane portion (315) includes: 6mm≤c≤b-4mm.

10. The battery housing assembly according to claim 4, characterized in that: The range of the width w1 of the elastic buckle along the clamping direction is: w1≥1mm; the range of the width w2 of the wedge-shaped slope (313) is: w2≥2mm; The sum of the widths w6 of the clamping groove (21) and the ramp guide groove (22) is in the range of: w6=w2+w1.

11. The battery housing assembly according to claim 3, characterized in that: The relationship between the maximum thickness dimension h1 of the upper insulating member (3) and the thickness h2 of the buckle base (312) is: 0.2 mm ≤ h1-h2 ≤ 1.5 mm, h2 ≥ 0.5 mm.

12. The battery housing assembly according to claim 4, characterized in that: The range of the outer diameter dimension w4 of the pole (2) includes: 8mm≤w4≤28mm; the range of the distance h4 between the top of the maximum opening end of the slope guide groove (22) and the top surface of the pole (2) is: h4≥0.7mm.

13. A battery, characterized in that: It comprises the battery housing assembly according to any one of claims 1 to 12 and a battery cell arranged in the battery housing assembly.

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