Battery pack structure

Abstract

The invention discloses a battery pack structure, and relates to the field of energy storage batteries, the battery pack structure comprises a bottom bracket part, a central supporting frame part, an upper pressing frame part and batteries, a sleeve is arranged at the upper end of each side arm of a lower bottom plate of multiple side arms, so that the batteries can be independently inserted into the sleeves, and gaps exist between the batteries, so that the batteries can be independently inserted into the sleeves; compared with a traditional battery pack of an integrated packaging structure, the battery pack structure can effectively avoid heat accumulation and is more convenient to dissipate heat, meanwhile, the upper pressing frame part is detachably connected and installed on the center supporting frame part arranged on the multi-side-arm lower bottom plate, after the battery is inserted into the sleeve, the battery is pressed downwards through the upper pressing frame part, and therefore heat dissipation is more convenient. And the battery is pressed and fixed between the upper pressing frame part and the multi-side-arm lower bottom plate, so that the fixing effect on the battery is good, and the battery is convenient to install and fix. Compared with a traditional battery pack with an integrated packaging structure, the whole pack body does not need to be disassembled when a single battery breaks down, operation is more convenient, and the maintenance cost can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy storage batteries, in particular to a battery pack structure. BACKGROUND

[0002] In the field of new energy storage, electric vehicles (such as electric balance cars), etc., the battery pack is the core component of energy storage and supply, and its structure design directly affects the safety of battery use, the reliability of electrical connection and the convenience of maintenance.

[0003] The patent with publication number CN212810460U discloses a balance car battery pack structure, which comprises a shell cover and a battery pack body. The upper end of the battery pack body is provided with a shell cover. The upper end surface of the shell cover is provided with a charging port protection assembly in the middle position. The charging port protection assembly comprises a protective cover, a damping sliding groove and a protective sleeve. The upper end surface of the shell cover is provided with a protective sleeve in the middle position. The inside of the protective sleeve is provided with a damping sliding groove. The inside of the damping sliding groove is provided with a protective cover. The utility model discloses a charging port protection assembly, which improves the service life of the charging port, prevents foreign matter from entering, prevents water from seeping into the battery pack to cause short circuit, improves the safety of use, ensures the working efficiency, improves the stability of discharge, sets up the limiting and fixing assembly, prevents the battery pack from slipping during use, ensures the stability of work, improves the use quality, and improves the disassembly and assembly efficiency.

[0004] The above-mentioned patent only improves the shell, and the battery pack body is a common battery pack with integrated packaging structure. However, the traditional battery pack has the following disadvantages: 1. The battery heat dissipation structure is imperfect. The battery pack is fixed by plastic cladding. The gap between each battery is small, which easily leads to heating and heat accumulation, which easily leads to performance degradation; 2. It is inconvenient to maintain. The traditional battery pack is mostly integrated packaging. When a single battery fails, the entire pack body needs to be disassembled, which is cumbersome and has high maintenance cost. Therefore, there is an urgent need for a battery pack structure with good heat dissipation and convenient maintenance. SUMMARY

[0005] The purpose of the present application is to provide a battery pack structure to solve the problems in the prior art: 1. The battery heat dissipation structure is imperfect. The battery pack is fixed by plastic cladding. The gap between each battery is small, which easily leads to heating and heat accumulation, which easily leads to performance degradation; 2. It is inconvenient to maintain. The traditional battery pack is mostly integrated packaging. When a single battery fails, the entire pack body needs to be disassembled, which is cumbersome and has high maintenance cost.

[0006] To achieve this purpose, the following technical solutions are adopted: A battery pack structure, comprising: A bottom seat part, the bottom seat part comprising a multi-side arm lower bottom plate and a sleeve fixedly arranged on the upper end of each side arm of the multi-side arm lower bottom plate, and the upper end surface of the multi-side arm lower bottom plate is provided with a lower pole piece; a center support frame part, comprising a pipe base for connecting with the multi-lateral arm lower bottom plate, and a pressing piece arranged outside the pipe base, and an inner partition pipe arranged in the pipe base; an upper pressing frame part, which is detachably connected and installed on the center support frame part, and the upper end of the upper pressing frame part is provided with an upper pole piece; a battery, which is inserted into the sleeve of the bottom seat part, and the upper end of the upper pressing frame part presses the upper end of the battery.

[0007] In a specific embodiment, the multi-lateral arm lower bottom plate comprises: a center circular plate; a support arm, which is fixedly arranged on the side of the center circular plate; a support plate, which is fixedly arranged on the other end of the support arm, for supporting the lower end of the battery; a connecting plate, which is fixedly arranged between the support arms, and the connecting plate is provided with a screw.

[0008] In a specific embodiment, the sleeve comprises: a clearance opening, which is arranged on the sleeve, for giving clearance to the pressing end of the pressing piece, and the length of the clearance opening is the same as the length of the sleeve; the sleeve is also provided with a heat dissipation opening, and the lower end of the sleeve is fixedly connected to the support plate.

[0009] In a specific embodiment, the lower pole piece comprises: a first contact end, which is a copper sheet, and the first contact end is arranged on the upper end surface of the multi-lateral arm lower bottom plate; a first insulating shell, which is sleeved on the outside of the first contact end; a copper pipe, which is connected with the first contact end and arranged in the middle of the multi-lateral arm lower bottom plate, the circular pole end of the first contact end is arranged on the support plate, the connecting sheet end of the first contact end is arranged on the support arm and connected with the lower end of the copper pipe, and the lower end of the clearance opening gives clearance to the connecting sheet end of the first contact end; a first insulating wire, which is fixedly arranged on the upper end of the copper pipe and passes through the upper end of the upper pressing frame part.

[0010] In a specific embodiment, the center circular plate of the multi-lateral arm lower bottom plate further comprises: a guide column, the lower end of which is fixedly arranged on the center circular plate, and the upper end of the guide column is provided with a threaded hole; A first reset spring is sleeved on the guide post, and a lower end of the first reset spring is fixedly arranged on the center circular plate.

[0011] In a specific embodiment, the pipe base comprises: A pipe body, an inner diameter of which matches an outer diameter of the copper pipe, is a component made of plastic material; A lower notch is arranged at a lower end of the pipe body to provide space for a connecting piece end of the first contact end; A mounting foot is fixedly arranged at the lower end of the pipe body to be connected to the center circular plate by a screw.

[0012] In a specific embodiment, the abutting member comprises: A slot block is fixedly arranged at the middle of the outer side of the pipe body, a through hole is arranged on the slot block, and a positioning groove is arranged on a side surface of the slot block; A plug-in plate is inserted through the slot of the slot block; A rubber abutting block is fixedly arranged at one end of the plug-in plate; Positioning side blocks are fixedly arranged at both sides of the plug-in plate, and the positioning side blocks are movably arranged in the positioning groove; A second reset spring is arranged in the positioning groove, one end of the second reset spring is connected to the positioning side block, and the other end of the second reset spring is connected in the positioning groove.

[0013] In a specific embodiment, the inner partition pipe comprises: A ring cover; An inner pipe body is fixedly arranged at a lower end surface of the ring cover, the ring cover is fixedly arranged at an upper end of the pipe body, the inner pipe body is inserted into the pipe body, an outer diameter of the inner pipe body matches an inner diameter of the copper pipe, and an inner diameter of the inner pipe body is greater than a diameter of the guide post.

[0014] In a specific embodiment, the upper pressing frame part comprises: A pressing cover frame is arranged at the same position as the lower bottom plate of the multi-side arm, and an upper pole piece is arranged at a lower end of the pressing cover frame; A positioning sleeve is fixedly arranged at a lower end surface of the pressing cover frame, the positioning sleeve is inserted into the inner pipe body and sleeved on the guide post, an outer diameter of the positioning sleeve matches an inner diameter of the inner pipe body, and an inner diameter of the positioning sleeve matches the diameter of the guide post; The plug-in plate is fixedly arranged on the lower end surface of the pressing frame, and the lower end of the plug-in plate is in a slope structure and used for pushing the plug-in plate in the through hole; The locking bolt is arranged on the upper end of the pressing frame and is in threaded connection with the threaded hole of the upper end of the guide column.

[0015] In a specific embodiment, the upper pole piece comprises: The second contact end head is a copper sheet; The second insulating shell is sleeved on the outer side of the second contact end head; The second insulating wire is connected with the connecting piece end of the second contact end head and penetrates out from the upper end surface of the pressing frame.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1. By arranging the sleeve on the upper end of each side arm of the multi-side-arm lower bottom plate and arranging the lower pole piece on the upper end surface of the multi-side-arm lower bottom plate, the battery can be individually inserted into the sleeve, and there is a gap between each battery. Compared with the traditional integrated packaging structure of the battery pack, the battery pack structure can effectively avoid heat accumulation and is more convenient for heat dissipation. The upper pressing frame part is detachably connected and installed on the center support frame part arranged on the multi-side-arm lower bottom plate. After the battery is inserted into the sleeve, the battery is pressed by the upper pressing frame part and is tightly fixed between the upper pressing frame part and the multi-side-arm lower bottom plate. The fixing effect of the battery is good, and the installation and fixing are convenient.

[0017] 2. The battery is individually inserted into the sleeve arranged on the multi-side-arm lower bottom plate, and the upper pressing frame part is detachably connected and installed on the center support frame part arranged on the multi-side-arm lower bottom plate. When the battery needs to be maintained, the upper pressing frame part is disassembled, and the battery to be replaced is taken out. Compared with the traditional integrated packaging structure of the battery pack, when a single battery fails, the entire pack does not need to be disassembled, the operation is more convenient, and the maintenance cost can be effectively reduced.

[0018] 3. By arranging the abutting piece on the outer side of the pipe seat and arranging the plug-in plate on the lower end of the pressing frame of the upper pressing frame part, when the upper pressing frame part is installed on the center support frame part, the slope structure of the lower end of the plug-in plate pushes the plug-in plate arranged by the abutting piece, so that the rubber block at the other end of the plug-in plate can push and lock the side surface of the battery inserted into the sleeve through the gap opening of the sleeve, so that the battery can be more stably placed in the sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall disassembled structure of the present invention; Figure 3 This is a schematic diagram of the structure of the base support and the central support frame of the present invention; Figure 4 This is a top view of the base support and central support frame of the present invention; Figure 5 This is a schematic diagram of the multi-sided arm lower base plate, lower electrode plate and central support frame of the present invention; Figure 6 This is a schematic diagram of the internal structure of the tube body of the present invention; Figure 7 This is a schematic diagram of the central support frame structure of the present invention; Figure 8 for Figure 5 Enlarged view of point A in the middle; Figure 9 This is a first-view structural schematic diagram of the upper pressure frame of the present invention; Figure 10 This is a second-view structural schematic diagram of the upper pressure frame of the present invention.

[0022] Illustration: 100. Base support; 110. Multi-sided arm lower base plate; 111. Central circular plate; 112. Support arm; 113. Support plate; 114. Connecting plate; 120. Sleeve; 121. Relief opening; 130. Lower electrode plate; 131. First contact end; 132. First insulating shell; 133. Copper tube; 134. First insulated wire; 140. Guide post; 141. Threaded hole; 150. First return spring; 200, center support frame part; 210, pipe seat part; 211, pipe body; 212, lower notch; 213, mounting foot; 220, abutting part; 221, slot block; 201, through opening; 202, positioning channel; 222, insertion plate; 223, rubber abutting block; 224, positioning side block; 225, second reset spring; 230, inner partition pipe part; 231, ring cover; 232, inner pipe body; 300, upper pressing frame part; 310, pressing cover frame; 320, positioning sleeve; 330, abutting insertion plate piece; 340, locking bolt; 350, upper pole piece part; 351, second contact end; 352, second insulating shell; 353, second insulating wire; 400, battery. DETAILED DESCRIPTION

[0023] In order to make the inventive purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component disposed therebetween.

[0025] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0026] Referring to Figures 1-10 As shown in the drawings, the embodiments of the present application provide a battery pack structure, comprising: A bottom seat part 100, the bottom seat part 100 comprises a multi-side arm lower bottom plate 110 and a sleeve 120 fixedly arranged at the upper end of each side arm of the multi-side arm lower bottom plate 110, and the upper end surface of the multi-side arm lower bottom plate 110 is provided with a lower pole piece part 130; A center support frame part 200, the center support frame part 200 comprises a pipe seat part 210 for connecting with the multi-side arm lower bottom plate 110 and an abutting part 220 arranged outside the pipe seat part 210, and an inner partition pipe part 230 is further arranged in the pipe seat part 210; The upper pressing frame part 300 is detachably connected and installed on the center support frame part 200, and the upper end of the upper pressing frame part 300 is provided with an upper pole piece 350; The battery 400 is inserted into the sleeve 120 of the bottom seat part 100, and the upper end of the upper pressing frame part 300 presses the upper end of the battery 400.

[0027] The sleeve 120 is provided on the upper end of each side arm of the multi-side-arm lower bottom plate 110, and the lower pole piece 130 is provided on the upper end surface of the multi-side-arm lower bottom plate 110, so that the battery 400 can be individually inserted into the sleeve 120, and there is a gap between each battery 400. Compared with the traditional integrated packaging structure of the battery pack, the battery pack structure can effectively avoid heat accumulation and is more convenient for heat dissipation.

[0028] Meanwhile, the upper pressing frame part 300 is detachably connected and installed on the center support frame part 200 provided by the multi-side-arm lower bottom plate 110, and after the battery 400 is inserted into the sleeve 120, the battery 400 is pressed by the upper pressing frame part 300, and the battery 400 is tightly fixed between the upper pressing frame part 300 and the multi-side-arm lower bottom plate 110. The fixing effect of the battery 400 is good, and the installation and fixing are convenient.

[0029] When the battery needs to be maintained, the upper pressing frame part 300 is disassembled, and the battery to be replaced is taken out. Compared with the traditional integrated packaging structure of the battery pack, when a single battery fails, the entire pack does not need to be disassembled, the operation is more convenient, and the maintenance cost can be effectively reduced.

[0030] In some embodiments of the present application, referring to Figures 5-6 As shown in the figure, the multi-side-arm lower bottom plate 110 comprises: A center circular plate 111; An arm 112 fixedly arranged on the side surface of the center circular plate 111, in the embodiment shown in the figure, eight groups of arms 112 are arranged on the side surface of the center circular plate 111; A supporting plate 113 fixedly arranged on the other end of the arm 112, used for supporting the lower end of the battery 400; A connecting plate 114 fixedly arranged between the arms 112, and the connecting plate 114 is provided with a screw.

[0031] In some embodiments of the present application, referring to Figure 3 , Figures 5-7 As shown in the figure, the sleeve 120 comprises: A gap 121 provided on the sleeve 120, used for giving way to the abutting end of the abutting piece 220, and the length of the gap 121 is the same as the length of the sleeve 120; The sleeve 120 is also provided with a heat dissipation opening, and the lower end of the sleeve 120 is fixedly connected to the supporting plate 113.

[0032] In some embodiments of the present application, referring to Figures 5-6 As shown in the figure, the lower pole piece 130 comprises: A first contact end 131, which is a copper sheet, is arranged on the upper end surface of the multi-limb lower base plate 110. A first insulating shell 132 is arranged on the outer side of the first contact end 131. A copper pipe 133 is connected to the first contact end 131 and arranged in the middle of the multi-limb lower base plate 110. The round pole end of the first contact end 131 is arranged on the supporting plate 113, the connecting sheet end of the first contact end 131 is arranged on the supporting arm 112 and connected to the lower end of the copper pipe 133, and the lower end of the gap 121 is arranged to accommodate the connecting sheet end of the first contact end 131. A first insulating wire 134 is fixedly arranged on the upper end of the copper pipe 133 and passes through the upper end of the upper pressing frame part 300.

[0033] In some embodiments of the present application, referring to Figures 5-6 As shown in the figure, the central circular plate 111 of the multi-limb lower base plate 110 further comprises: A guide column 140, the lower end of which is fixedly arranged on the central circular plate 111, and the upper end of the guide column 140 is provided with a threaded hole 141. A first reset spring 150 is sleeved on the guide column 140, and the lower end of the first reset spring 150 is fixedly arranged on the central circular plate 111.

[0034] In some embodiments of the present application, referring to Figures 5-8 As shown in the figure, the pipe seat 210 comprises: A pipe body 211, the inner diameter of which matches the outer diameter of the copper pipe 133, is a component made of plastic material. A lower notch 212 is arranged on the lower end of the pipe body 211 to accommodate the connecting sheet end of the first contact end 131. A mounting foot 213 is fixedly arranged on the lower end of the pipe body 211 to be connected to the central circular plate 111 by a screw.

[0035] In some embodiments of the present application, referring to Figure 5 、 Figures 7-8 As shown in the figure, the abutting member 220 comprises: The slot block 221 is fixedly arranged in the middle of the outer side of the pipe body 211, a through hole 201 is arranged on the slot block 221, and a positioning groove 202 is arranged on the side of the slot block 221; The plug plate 222 is inserted through the slot of the slot block 221. The rubber block 223 is fixedly arranged at one end of the plug plate 222. The positioning side block 224 is fixedly arranged on both sides of the plug plate 222, and the positioning side block 224 is movably arranged in the positioning groove 202. The second reset spring 225 is arranged in the positioning groove 202, and one end of the second reset spring 225 is connected with the positioning side block 224, and the other end of the second reset spring 225 is connected in the positioning groove 202.

[0036] The cooperation of the positioning side block 224 and the positioning groove 202 enables the movement of the plug plate 222 to be positioned, and when the plug plate 222 is pushed out of the slot of the slot block 221, the second reset spring 225 is stretched, and when the plug plate 222 is no longer pushed by an external force, the plug plate 222 can be reset under the action of the second reset spring 225.

[0037] In some embodiments of the present application, referring to Figure 7 The inner partition pipe 230 includes: The ring cover 231; The inner pipe body 232 is fixedly arranged at the lower end surface of the ring cover 231, the ring cover 231 is fixedly arranged at the upper end of the pipe body 211, the inner pipe body 232 is inserted into the pipe body 211, the outer diameter of the inner pipe body 232 matches the inner diameter of the copper pipe 133, and the inner diameter of the inner pipe body 232 is greater than the diameter of the guide column 140.

[0038] The arrangement of the inner partition pipe 230 enables the copper pipe 133 to be clamped between the inner pipe body 232 and the pipe body 211, thereby protecting the copper pipe 133.

[0039] In some embodiments of the present application, referring to Figures 9-10 The upper pressing frame part 300 includes: The pressing cover frame 310 is arranged in the same way as the multi-side arm lower bottom plate 110, and the upper pole piece 350 is arranged on the lower end of the pressing cover frame 310; The positioning sleeve 320 is fixedly arranged at the lower end surface of the pressing cover frame 310, the positioning sleeve 320 is inserted into the inner pipe body 232 and is sleeved on the guide column 140, the outer diameter of the positioning sleeve 320 matches the inner diameter of the inner pipe body 232, and the inner diameter of the positioning sleeve 320 matches the diameter of the guide column 140; When the upper pressing frame part 300 is connected and installed with the center support frame part 200, the positioning sleeve 320 is inserted into the inner pipe body 232, and the guide column 140 is inserted into the positioning sleeve 320, so that the positioning connection can be well performed.

[0040] The plug-in plate piece 330 is fixedly arranged on the lower end surface of the pressing cover frame 310, and the lower end of the plug-in plate piece 330 is in a beveled structure, which is used for being inserted into the through hole 201 to push the plug-in plate 222; The locking bolt 340 is arranged on the upper end of the pressing cover frame 310 and is threadedly connected with the threaded hole 141 at the upper end of the guide column 140.

[0041] When the positioning sleeve 320 is inserted into the inner pipe body 232, the first reset spring 150 can be pressed downward, and when the upper pressing frame part 300 is detached from the center support frame part 200, the locking bolt 340 is unscrewed, and the positioning sleeve 320 is lifted upward under the action of the first reset spring 150, so that the positioning sleeve 320 is lifted out of the inner pipe body 232, and the upper pole piece 350 can be quickly disconnected from the upper end of the battery 400.

[0042] The plug-in plate piece 330 is arranged on the lower end of the pressing cover frame 310, and the lower end of the plug-in plate piece 330 is in a beveled structure, which is used for being inserted into the through hole 201 to push the plug-in plate 222, so that the rubber block 223 at the other end of the plug-in plate 222 can push and lock the side surface of the battery 400 inserted into the sleeve 120 through the gap 121 of the sleeve 120, and the battery 400 can be more stably placed in the sleeve 120 through the inner support of the plug-in plate 222 by the beveled structure of the plug-in plate piece 330.

[0043] In some embodiments of the present application, referring to Figure 10 The upper pole piece 350 includes: The second contact end head 351 is a copper sheet; The second insulating shell 352 is arranged on the outer side of the second contact end head 351; The second insulating wire 353 is connected with the connecting piece end of the second contact end head 351 and penetrates out of the upper end surface of the pressing cover frame 310.

[0044] When the battery pack structure is installed and used, the battery 400 is inserted into the sleeve 120 arranged on the upper end of each side arm of the multi-side arm lower base plate 110, and then the upper pressing frame part 300 is connected and installed with the center support frame part 200. When installed, the positioning sleeve 320 is inserted into the inner tube body 232, and the guide column 140 is inserted into the positioning sleeve 320, the second contact end head 351 arranged on the lower end surface of the pressing cover frame 310 is aligned with the pole head on the upper end of the battery 400, the locking bolt 340 is screwed to be threadedly connected with the threaded hole 141 on the upper end of the guide column 140, and the pressing cover frame 310 is fixed on the upper end of the tube body 211.

[0045] When the upper pressing frame part 300 is connected and installed with the center support frame part 200, the inclined surface structure of the plug-in plate piece 330 arranged on the lower end surface of the pressing cover frame 310 is inserted into the through hole 201 opened on the upper end of the plug-in groove block 221, and the inclined surface structure is in contact with and pushes against the plug-in plate 222, so that the plug-in plate 222 is pushed out of the slot of the plug-in groove block 221, and the rubber resistance block 223 at the other end of the plug-in plate 222 can push and lock the side surface of the battery 400 inserted into the sleeve 120 through the gap 121 opened in the sleeve 120. When the upper pressing frame part 300 is detached from the center support frame part 200, the plug-in plate piece 330 is pulled out of the through hole 201 of the plug-in groove block 221, and no longer pushes against the plug-in plate 222, and the positioning side block 224 arranged on the side surface of the plug-in plate 222 cooperates with the second reset spring 225, so that the plug-in plate 222 can be reset. The rubber resistance block 223 no longer pushes against the side surface of the battery 400.

[0046] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack structure, characterized by, The application relates to a battery holder, which comprises a bottom seat part (100), a center support frame part (200) and an upper pressing frame part (300). The bottom seat part (100) comprises a multi-lateral-arm lower bottom plate (110) and a sleeve (120) fixedly arranged at the upper end of each lateral arm of the multi-lateral-arm lower bottom plate (110), and the upper end surface of the multi-lateral-arm lower bottom plate (110) is provided with a lower polar piece (130). The center support frame part (200) comprises a tube seat (210) for connecting with the multi-lateral-arm lower bottom plate (110) and a pressing piece (220) arranged outside the tube seat (210), and an inner partition tube (230) is further arranged in the tube seat (210). The upper pressing frame part (300) is detachably connected and mounted on the center support frame part (200), and the upper end of the upper pressing frame part (300) is provided with an upper polar piece (350). The battery (400) is inserted into the sleeve (120) of the bottom seat part (100), and the upper end of the upper pressing frame part (300) presses the upper end of the battery (400).

2. The battery pack structure of claim 1, wherein, The multi-lateral-arm lower bottom plate (110) comprises a center circular plate (111), a support arm (112) fixedly arranged at the lateral surface of the center circular plate (111), a supporting plate (113) fixedly arranged at the other end of the support arm (112) and used for supporting the lower end of the battery (400), and a connecting plate (114) fixedly arranged between the support arms (112) and provided with a screw. The sleeve (120) comprises a clearance opening (121) arranged on the sleeve (120) and used for giving clearance to the pressing end of the pressing piece (220), and the length of the clearance opening (121) is the same as that of the sleeve (120). The sleeve (120) is further provided with a heat dissipation opening, and the lower end of the sleeve (120) is fixedly connected to the supporting plate (113). The lower polar piece (130) comprises a first contact end head (131) which is a copper sheet and is arranged at the upper end surface of the multi-lateral-arm lower bottom plate (110), a first insulating shell (132) which is sleeved outside the first contact end head (131), and a copper tube (133) which is connected with the first contact end head (131) and is arranged in the middle of the multi-lateral-arm lower bottom plate (110), wherein the circular polar piece end of the first contact end head (131) is arranged on the supporting plate (113), the connecting sheet end of the first contact end head (131) is arranged on the support arm (112) and is connected with the lower end of the copper tube (133), and the lower end of the clearance opening (121) gives clearance to the connecting sheet end of the first contact end head (131). ​ 3. The battery pack structure of claim 2, wherein, ​ ​ ​ 4. The battery pack structure of claim 3, wherein, ​ ​ ​ ​ A first insulated wire (134) is fixedly arranged at the upper end of the copper pipe (133) and penetrates through the upper end of the upper pressing frame portion (300).

5. The battery pack structure of claim 4, wherein, The central circular plate (111) of the multi-lateral-arm lower base plate (110) further comprises: A guide column (140) is fixedly arranged at the lower end of the central circular plate (111), and a threaded hole (141) is formed at the upper end of the guide column (140); A first reset spring (150) is sleeved on the guide column (140), and the lower end of the first reset spring (150) is fixedly arranged at the central circular plate (111).

6. The battery pack structure of claim 5, wherein, The pipe seat member (210) comprises: A pipe body (211) whose inner diameter matches the outer diameter of the copper pipe (133) is made of plastic material; A lower notch (212) is formed at the lower end of the pipe body (211) to provide space for the connecting piece end of the first contact end head (131); A mounting foot (213) is fixedly arranged at the lower end of the pipe body (211) to be connected to the central circular plate (111) by a screw.

7. The battery pack structure of claim 6, wherein, The abutting member (220) comprises: A slot block (221) is fixedly arranged at the middle of the outer side of the pipe body (211), a through hole (201) is formed in the slot block (221), and a positioning groove (202) is formed in the side surface of the slot block (221); A plug plate (222) is inserted through the slot of the slot block (221); A rubber abutting block (223) is fixedly arranged at one end of the plug plate (222); Positioning side blocks (224) are fixedly arranged at both sides of the plug plate (222) and are movably arranged in the positioning groove (202); A second reset spring (225) is arranged in the positioning groove (202) and connected to the positioning side blocks (224) at one end and to the positioning groove (202) at the other end.

8. The battery pack structure of claim 7, wherein, The inner partition pipe member (230) comprises: A ring cover (231); An inner pipe body (232) is fixedly arranged at the lower end surface of the ring cover (231), the ring cover (231) is fixedly arranged at the upper end of the pipe body (211), the inner pipe body (232) is inserted into the pipe body (211), the outer diameter of the inner pipe body (232) matches the inner diameter of the copper pipe (133), and the inner diameter of the inner pipe body (232) is greater than the diameter of the guide column (140).

9. The battery pack structure of claim 8, wherein, The upper pressing frame portion (300) comprises: A pressing cover frame (310) is arranged at the lower end of the multi-lateral-arm lower base plate (110), and the upper pole piece member (350) is arranged at the lower end of the pressing cover frame (310). A positioning sleeve (320) is fixedly arranged on the lower end surface of the gland frame (310), is inserted into the inner pipe body (232), and is sleeved on the guide column (140). The outer diameter of the positioning sleeve (320) matches the inner diameter of the inner pipe body (232), and the inner diameter of the positioning sleeve (320) matches the diameter of the guide column (140); A push-in plate (330) is fixedly arranged on the lower end surface of the gland frame (310), and the lower end of the push-in plate (330) is a beveled structure for pushing the push-in plate (222) in the through hole (201); A locking bolt (340) is arranged on the upper end of the gland frame (310) and is threadedly connected with the threaded hole (141) on the upper end of the guide column (140).

10. The battery pack structure of claim 9, wherein, The upper pole piece (350) comprises: A second contact end head (351) is a copper sheet; A second insulating shell (352) is sleeved on the outer side of the second contact end head (351); A second insulating lead wire (353) is connected with the connecting piece end of the second contact end head (351) and penetrates out from the upper end surface of the gland frame (310).

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