CN217334335U

CN217334335U - Battery package coupling assembling and have its battery package

Info

Publication number: CN217334335U
Application number: CN202220700777.9U
Authority: CN
Inventors: 何敏强; 雷悦民; 鲍添增; 高毓轩; 李文博; 陈俊挺; 宋超; 郑晓帆
Original assignee: Zhejiang Hengyuan New Energy Technology Co Ltd
Current assignee: Zhejiang Hengyuan New Energy Technology Co Ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-08-30
Anticipated expiration: 2032-03-28

Abstract

The utility model provides a battery package coupling assembling and battery package that has it, this battery package coupling assembling are including hoist and mount fitting piece and mounting, the mounting is used for with battery package fixed connection, the hoist and mount fitting piece with the connection can be dismantled to the mounting, the inside first cooperation structure that is equipped with of hoist and mount fitting piece, first cooperation structure can be dismantled with the hoist and mount connecting piece of battery package hoisting accessory and be connected. The utility model discloses can reduce the through-hole quantity of seting up on the battery package, simplify the structure of battery package, be favorable to the battery package to have good leakproofness.

Description

Battery package coupling assembling and battery package that has it

Technical Field

The utility model relates to a new forms of energy vehicle field, concretely relates to battery package coupling assembling and battery package that has it.

Background

As shown in fig. 1, for design needs, some battery packs have a plurality of cavities a for placing battery modules therein, and the cavities a are separated by plate-shaped solid spacers B; in such a battery pack, the solid space portion B is one of regions for penetrating the fixing parts when the upper cover C and the lower case D of the battery pack are coupled, and is also a force receiving portion when the battery pack is lifted. On the solid spacing part B, the part which needs to be matched with the hoisting device when the battery pack is hoisted and the part which needs to be used when the upper cover C and the lower shell D of the battery pack are connected are separately arranged.

Specifically, be equipped with the poroid functional area B1 that the several runs through upper cover C and casing D down on the entity interval portion B for cooperate with corresponding fixed part (for example the bolt, not shown in the figure), or be used for holding and lift by crane assembly complex through-hole bush (not shown in the figure), make the through-hole bush can weld on the battery package, and at battery package hoist and mount in-process with hoisting connection spare on the hoisting accessory (not shown in the figure, mostly be hoisting bolt, the effect is with hoisted thing fixed connection) cooperation, and then realize hoisting by crane of battery package. Described in more detail, a part of the number of functional regions B1 is used to cooperate with a fixing part for the fixing part to fix the upper cover C and the lower case D together; the remaining functional area B1 is used to match with the through hole bush, so that the through hole bush can be fixed on the battery pack and can be detachably connected with the hoisting connecting piece when the battery pack needs to be hoisted.

Therefore, when the battery pack needs to be lifted, the battery pack can be lifted only by fixedly connecting the through hole bushing with the lifting connecting piece on the lifting device in a detachable mode, and after the lifting is completed, the connection between the through hole bushing and the lifting connecting piece is removed, so that the connection between the lifting device and the battery pack can be removed. Furthermore, in order to ensure the sealing performance of the battery pack, an integral sealing gasket is generally laid on the solid interval part B of the battery pack, through holes which can correspond to the functional areas B1 one by one are respectively formed in the sealing gasket, and the fixing part or the through hole liner is matched with the battery pack, simultaneously penetrates through the sealing gasket and is tightly wrapped by the sealing gasket, so that the inside of the battery pack is ensured to form a sealed environment and isolated from the outside. Furthermore, in order to ensure the effect of welding connection between the battery pack and the through hole bush, the battery pack upper cover C, the lower casing D and the through hole bush are made of the same material, and are mostly aluminum alloy.

The disadvantage of this kind of arrangement scheme lies in, is used for connecting the fixed part of upper cover C and lower casing D to and be used for with hoist and mount connecting piece complex through-hole bush, this two sets of components of a whole that can function independently between them, lead to having too many through-holes on the battery package, be unfavorable for battery package to have good leakproofness promptly, also increased the complexity of battery package structure.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a battery package coupling assembling and battery package that has it, this battery package coupling assembling can regard as simultaneously with hoist and mount connecting piece complex hoist and mount fitting piece to and connect the mounting of upper cover and lower casing and use.

The utility model provides a battery package coupling assembling, including hoist and mount fitting piece and mounting, the mounting be used for with battery package fixed connection, the hoist and mount fitting piece with the connection can be dismantled to the mounting, the inside first cooperation structure that is equipped with of hoist and mount fitting piece, first cooperation structure can be dismantled with the hoist and mount connecting piece of battery package hoisting accessory and be connected.

Optionally, first cooperation structure includes dismouting cooperation portion and first hoist and mount cooperation portion, first hoist and mount cooperation portion can be dismantled with battery package hoisting accessory's hoist and mount connecting piece and be connected, dismouting cooperation portion can equip with the dismantlement that corresponds and cooperate, just the dismouting cooperation portion can hold the hoist and mount connecting piece and rotate in it.

Optionally, the hoist and mount fitting piece includes the minor diameter portion, the inside second cooperation structure that is equipped with of mounting, second cooperation structure includes minor diameter cooperation portion and second hoist and mount cooperation portion, the minor diameter portion with detachable mode fix to in the minor diameter cooperation portion, the hoist and mount connecting piece pass behind the minor diameter portion with second hoist and mount cooperation portion can dismantle the connection.

Optionally, the hoisting fitting piece further comprises a large diameter portion, a placing groove is formed in the fixing member, the placing groove is used for placing a sealing element, and the sealing element is clamped between the large diameter portion and the fixing member.

Optionally, the hoisting matching piece and the fixing piece are detachably connected in a threaded connection mode.

Optionally, the strength of the hoisting matching piece is greater than that of the fixing piece.

The utility model also provides a battery package, include as above arbitrary battery package coupling assembling.

Optionally, the battery package includes upper cover and lower casing, the inside cavity that is equipped with a plurality of intervals and sets up of battery package, battery package coupling assembling is located between the adjacent cavity, just the mounting with casing fixed connection down, the hoist and mount fitting piece passes the upper cover with the mounting links to each other, and will the upper cover is fixed on the casing down.

Optionally, a reinforcing frame is arranged on the lower shell, the reinforcing frame is an m-shaped frame with an opening facing the lower shell, and comprises a U-shaped mounting area and a reinforcing area located on the side edge of the mounting area, the lower ends of the mounting area and the reinforcing area abut against the lower shell, the fixing piece penetrates through the mounting area and is fixedly connected with the lower shell, a reinforcing hole is formed in the reinforcing area, and a reinforcing part can penetrate through the reinforcing hole and is fixed to the lower shell.

Optionally, at least one reinforcing plate is further disposed in the mounting region, and the reinforcing plate is supported between the mounting region and the lower housing, and is located at an end of the reinforcing frame or arranged along a length direction of the reinforcing frame.

To sum up, can cooperate with hoist and mount connecting piece through the setting, can be with upper cover and lower casing fixed battery package coupling assembling together again, the utility model discloses can reduce the through-hole quantity of seting up on the battery package, simplify the structure of battery package, be favorable to the battery package to have good leakproofness. Further, the utility model discloses still have following beneficial effect:

1. the utility model can reduce the production cost of the battery pack by reducing the types and the quantity of the parts needed to be used for the battery pack assembly;

2. by arranging the integral sealing gasket into the sealing rings which are matched with the battery pack connecting components in a one-to-one correspondence manner, the utility model greatly reduces the material consumption of the battery pack sealing components while ensuring the air tightness of the battery pack, and can further reduce the production cost;

3. through the use volume that reduces the sealing member, the utility model discloses effectively reduced among the correlation technique sealing member and suffered easily when the transportation and pull and then the risk of damage.

4. Because the utility model discloses in can dismantle between the hoist and mount mating member of multi-functional connecting piece and the mounting, therefore after the hoist and mount mating member takes place wearing and tearing, the utility model discloses can only carry out the individual change of hoist and mount mating member, so, the utility model discloses can reduce the after-sale cost of maintenance by a wide margin;

5. under the prerequisite of guaranteeing to weld even reliability between battery package coupling assembling and the lower casing, because the utility model discloses a material between hoist and mount fitting piece and the mounting can be different, and the hoist and mount fitting piece can adopt more wear-resisting material to make, consequently the utility model discloses can reduce the battery package frequency of appearance of after-sale problem by a wide margin to further reduce after-sale cost.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic view of a battery pack according to the related art.

Fig. 2 is a schematic diagram of a battery pack according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of the upper cover and the lower housing in the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of the lower housing in the embodiment of the present invention.

Fig. 5 is a schematic structural view of the battery pack connection assembly in the embodiment of the present invention.

Fig. 6 is a sectional view of the battery pack connection assembly according to the embodiment of the present invention.

Fig. 7 is the embodiment of the present invention in which the battery pack connecting assembly is assembled with the upper cover and the lower case.

Fig. 8 is a schematic view (first angle) of a reinforcing frame according to an embodiment of the present invention.

Fig. 9 is a schematic view (second angle) of a reinforcing frame according to an embodiment of the present invention.

Description of the reference numerals

A-cavity, B-solid spacer, B1-functional area, I-weld bead;

C. 1-upper cover, 11-assembly hole, D, 2-lower shell, 3-battery pack connecting component, 31-hoisting matching component, 310-small diameter part, 311-large diameter part, 312-first matching structure, 3121-dismounting matching part, 3122-first hoisting matching part, 32-fixing component, 321-second matching structure, 3211-small diameter matching part, 3212-second hoisting matching part, 322-placement groove, 4-first cavity, 5-second cavity, 6-third cavity, 7-first spacing part, 71-first transition area, 72-second transition area, 8-second spacing part, 81-third transition area, 82-fourth transition area, 9-reinforcing frame, 91-installation area, 911-reinforcing plate, 92-reinforcing area, 12-reinforcing holes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The terms "first," "second," and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

As shown in fig. 2 and fig. 3, the present embodiment provides a battery pack, which includes an upper cover 1, a lower housing 2, and a battery pack connecting assembly 3, wherein after the upper cover 1 and the lower housing 2 are assembled, a plurality of cavities are arranged at intervals inside the battery pack, specifically including a first cavity 4, a second cavity 5, and a third cavity 6, wherein a first solid partition 7 is arranged between the first cavity 4 and the second cavity 5, a second solid partition 8 is arranged between the second cavity 5 and the third cavity 6, the first partition 7 includes a first transition region 71 located in the upper cover 1 and a second transition region 72 located in the lower housing 2, and the second partition 8 includes a third transition region 81 located in the upper cover 1 and a fourth transition region 82 located in the lower housing 2; when the upper cover 1 is assembled with the lower housing 2, the first transition area 71 overlaps the second transition area 72, i.e. forms the first spacer 7, and the third transition area 81 overlaps the fourth transition area 82, i.e. forms the second spacer 8. In this embodiment, the first transition area 71 and the third transition area 81 are provided with assembly holes 11 penetrating through the upper cover 1, and the second transition area 72 and the fourth transition area 82 are provided with the battery pack connecting assembly 3.

Referring further to fig. 4 and 5, the battery pack connecting assembly 3 is disposed on the first and second spacing portions 7 and 8, and includes a hanging fitting member 31 and a fixing member 32 detachably connected, and the fixing member 32 is fixedly connected to the lower case 2; based on this, by means of the hoisting fitting member 31, the battery pack connecting assembly 3 can be connected with the hoisting connecting member when the battery pack is hoisted, and by means of the detachable connection relationship between the hoisting fitting member 31 and the fixing member 32, the battery pack connecting assembly 3 can fix the upper cover 1 and the lower housing 2 together.

Specifically, as shown in fig. 6, the hoisting fitting member 31 is T-shaped, and includes a large diameter portion 311 having a larger diameter and a small diameter portion 310 having a smaller diameter, the small diameter portion 310 being capable of fitting into the fitting hole 11, and being provided with threads on the outer periphery thereof. A first matching structure 312 penetrating through the hoisting matching member 31 is arranged inside the hoisting matching member 31, the first matching structure 312 comprises a dismounting matching part 3121 and a first hoisting matching part 3122, wherein the dismounting matching part 3121 is in a shape capable of matching with the hexagonal end of an inner hexagonal wrench, and the diameter of the dismounting matching part is larger than the maximum diameter of the hoisting connecting member, so that the hoisting connecting member can rotate in the dismounting matching part 3121; the diameter of first hoist and mount cooperation portion 3122 is less than the diameter of dismouting cooperation portion 3121, and is equipped with the screw on its inner wall, can dismantle with the hoist and mount connecting piece and be connected. Correspondingly, the fixing member 32 is cylindrical, and a second engaging structure 321 is disposed therein for detachable connection with the hanging engaging member 31; the second matching structure 321 is a variable-diameter hollow structure, and includes a small-diameter matching portion 3211 and a second hoisting matching portion 3212, the small-diameter matching portion 3211 is located above the second hoisting matching portion 3212, and the inner wall of the small-diameter matching portion 3211 is provided with threads, and can be connected and matched with the small-diameter portion 310 of the hoisting matching member 31 through the threads; the diameter of the second hoisting matching part 3212 is equal to the diameter of the first hoisting matching part 3122, and the inner wall of the second hoisting matching part is also provided with threads, so that the second hoisting matching part can be detachably connected with the hoisting connecting piece.

Thus, as shown in fig. 7, the fixing element 32 is disposed on the lower case 2, so that the lower portion of the fixing element 32 is fixedly connected with the lower case 2 by welding (in the figure, a circle of weld bead I at the lower portion of the fixing element 32 is shown), and then when the upper cover 1, the lower case 2 and the battery pack connecting assembly 3 are assembled, the upper cover 1 is aligned with the lower case 2, the small-diameter matching portion 3211 of the fixing element 32 is aligned with the assembling hole 11 of the upper cover 1, so that an allen key can be used to match with the assembling and disassembling matching portion 3121, and the hoisting matching element 31 can easily pass through the assembling hole 11 to enter the small-diameter matching portion 3211 with the help of the key and is fixedly connected with the fixing element 32 by screwing; at this time, the large-diameter portion 311 tightly presses the upper cover 1 between itself and the fixing member 32, the upper cover 1 is fixedly connected with the lower housing 2, and the first hoisting matching portion 3122 is aligned with the second hoisting matching portion 3212; based on this, when the battery pack needs to be lifted, the battery pack can be lifted only by extending the lifting connecting piece into the lifting matching piece 31, penetrating the dismounting matching part 3121 and penetrating the first lifting matching part 3122 and the second lifting matching part 3212 to form a fixed connection with the battery pack connecting assembly 3, and after the lifting is completed, the connection between the battery pack connecting assembly 3 and the lifting connecting piece is released, so that the connection between the lifting device and the battery pack can be released.

It should be noted that, in some possible embodiments, after the battery pack assembled by the battery pack connecting assembly 3, the upper cover 1 and the lower housing 2 is mounted on the whole vehicle, the upper surface of the lifting fitting piece 31 contacts with the chassis of the vehicle body, and is relatively displaced during the use of the vehicle, and then is worn, based on which, the fixing piece 32 can be made of the same material (for example, aluminum) as the material of the lower housing 2 of the battery pack, so as to ensure the welding effect between the fixing piece 32 and the lower housing 2, and meanwhile, the lifting fitting piece 31 is made of a material (for example, steel) with higher strength, so as to increase the wear resistance of the contact surface of the fixing piece 32 and the vehicle body, and ensure the service life of the multifunctional connecting piece.

Further, in order to enable the battery pack connecting assembly 3 to be adapted to hoisting connecting members of different specifications, the length of the small diameter fitting portion 3211 is greater than that of the small diameter portion 310 in this embodiment.

Alternatively, the disassembly and assembly fitting portion 3121 in this embodiment may also be configured in a contour shape of other common disassembly equipment (e.g., a square inner wrench).

Further, in this embodiment, a gasket of a one-piece type is not used, but a ring of placing grooves 322 for placing a sealing ring (not shown) is provided on the upper portion of the fixing member 32, so as to reduce the cost while ensuring the sealing performance of the battery pack; specifically, the placing groove 322 is located at a position on the upper surface of the fixing member 32, which will contact with the large diameter portion 311, and after the hoisting fitting member 31 and the fixing member 32 are connected, the sealing ring located in the placing groove 322 deforms under the extrusion of the hoisting fitting member 31 and the fixing member 32, so as to ensure the sealing performance of the battery pack, and ensure that the position on the battery pack, where the battery pack connecting assembly 3 is located, and the outside of the battery pack are in a reliable isolation state.

Preferably, referring to fig. 8 and 9, the second transition area 72 and the fourth transition area 82 of the lower shell 2 are shaped like a Chinese character 'ji' (for brevity, fig. 8 and 9 only show the second transition area 72 as an example), the left and right ends of the structure are respectively connected to the bottom walls of the adjacent cavities inside the battery pack, the fixing member 32 is inserted through the middle of the structure, most of the fixing member 32 extends out of the structure, and the lower portion of the fixing member 32 extends out of the structure, and is fixedly connected to the structure by welding.

As mentioned above, a reinforcing frame 9 is arranged above the middle part of the inverted-V shape to enhance the overall strength of the battery pack at the position where the battery pack connecting assembly 3 is arranged; the reinforcing frame 9 is substantially m-shaped with an opening facing downward, and includes a mounting area 91 and a reinforcing area 92, wherein the reinforcing area 92 is located on one side of the mounting area 91, the mounting area 91 and the reinforcing area 92 are both U-shaped with an opening facing downward, the fixing member 32 is located in the mounting area 91 and has a portion exposed out of the upper surface of the mounting area 91, a plurality of reinforcing holes 12 are formed in the upper surface of the reinforcing area 92, and reinforcing parts (such as bolts or pins) can pass through the reinforcing holes 12 and penetrate into the lower case 2 to press the reinforcing area 92 and the mounting area 91 against the lower case 2, so as to improve the overall strength of the reinforcing frame 9 and indirectly improve the stability of the battery pack. Further, a plurality of the battery pack connecting assemblies 3 are arranged in a row at intervals in the mounting region 91, reinforcing plates 911 are provided between each of the battery pack connecting assemblies 3 and at both ends of the reinforcing frame 9, and the reinforcing plates 911 are supported between the upper surface of the mounting region 91 and the lower case 2 to further improve the overall strength of the reinforcing frame 9.

To sum up, can cooperate with hoist and mount connecting piece through the setting, can be with upper cover 1 and lower casing 2 fixed battery package coupling assembling 3 together again, the utility model discloses can reduce the through-hole quantity of seting up on the battery package, simplify the structure of battery package, be favorable to the battery package to have good leakproofness. Further, the utility model discloses still have following beneficial effect:

2. by arranging the integral sealing gasket into the sealing rings which are matched with the battery pack connecting components 3 in a one-to-one correspondence manner, the utility model greatly reduces the material consumption of the battery pack sealing components while ensuring the air tightness of the battery pack, and can further reduce the production cost;

3. through the use volume who reduces the sealing member, the utility model discloses effectively reduced among the correlation technique sealing member and suffered easily when the transportation and drag and then the risk of damage.

4. Because the utility model discloses in can dismantle between the hoist and mount mating member 31 of multi-functional connecting piece and mounting 32, therefore after hoist and mount mating member 31 takes place wearing and tearing, the utility model discloses can only carry out the independent change of hoist and mount mating member 31, so, the utility model discloses can reduce the after-sale cost of maintenance by a wide margin;

5. under the prerequisite of guaranteeing to weld even reliability between battery package coupling assembling 3 and the lower casing 2, because the utility model discloses a material between hoist and mount fitting piece 31 and the mounting 32 can be different, and hoist and mount fitting piece 31 can adopt more wear-resisting material to make, consequently the utility model discloses can reduce the battery package frequency of appearance of after-sale problem by a wide margin to further reduce the after-sale cost.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a battery package coupling assembling, its characterized in that, includes hoist and mount fitting piece (31) and mounting (32), mounting (32) are used for with battery package fixed connection, hoist and mount fitting piece (31) with mounting (32) can be dismantled and be connected, hoist and mount fitting piece (31) inside is equipped with first cooperation structure (312), first cooperation structure (312) can be dismantled with the hoist and mount connecting piece of battery package hoisting accessory and be connected.

2. The battery pack connection assembly of claim 1, wherein the first engagement structure (312) comprises a disassembly and assembly engagement portion (3121) and a first lifting engagement portion (3122), the first lifting engagement portion (3122) is detachably connectable to a lifting connection member of a battery pack lifting device, the disassembly and assembly engagement portion (3121) is engageable with a corresponding disassembly device, and the disassembly and assembly engagement portion (3121) is capable of receiving the lifting connection member for rotation therein.

3. The battery pack connecting assembly according to claim 1, wherein the lifting fitting member (31) comprises a small diameter portion (310), the fixing member (32) is internally provided with a second fitting structure (321), the second fitting structure (321) comprises a small diameter fitting portion (3211) and a second lifting fitting portion (3212), the small diameter portion (310) is detachably fixed to the small diameter fitting portion (3211), and the lifting connecting member passes through the small diameter portion (310) and is detachably connected to the second lifting fitting portion (3212).

4. The battery pack connecting assembly according to claim 1, wherein the lifting fitting member (31) further comprises a large diameter portion (311), the fixing member (32) is provided with a placement groove (322), the placement groove (322) is used for placing a sealing member, and the sealing member is clamped between the large diameter portion (311) and the fixing member (32).

5. A battery pack connecting assembly according to claim 1, wherein the lifting fitting (31) is detachably connected to the fixing member (32) by means of a screw connection.

6. A battery pack connecting assembly according to claim 1, wherein the strength of the lifting fitting member (31) is greater than the strength of the fixing member (32).

7. A battery pack, characterized in that it comprises a battery pack connection assembly (3) according to any one of claims 1-6.

8. The battery pack according to claim 7, wherein the battery pack comprises an upper cover (1) and a lower housing (2), a plurality of cavities are arranged at intervals in the battery pack, the battery pack connecting assembly (3) is located between adjacent cavities, the fixing member (32) is fixedly connected with the lower housing (2), and the hoisting fitting member (31) penetrates through the upper cover (1) to be connected with the fixing member (32) and fixes the upper cover (1) on the lower housing (2).

9. The battery pack according to claim 8, wherein a reinforcing frame (9) is provided on the lower case (2), the reinforcing frame (9) is an m-shaped frame that opens toward the lower case (2) and includes a mounting area (91) having a U-shape and reinforcing areas (92) that are located at sides of the mounting area (91), lower ends of the mounting area (91) and the reinforcing areas (92) abut against the lower case (2), the fixing member (32) passes through the mounting area (91) and is fixedly connected to the lower case (2), and reinforcing holes (12) are provided in the reinforcing areas (92), and reinforcing members can be fixed to the lower case (2) through the reinforcing holes (12).

10. The battery pack according to claim 9, wherein at least one reinforcing plate (911) is further provided in the mounting region (91), and the reinforcing plate (911) is supported between the mounting region (91) and the lower case (2) and is positioned at an end of the reinforcing frame (9) or arranged along a length direction of the reinforcing frame (9).