CN220209192U

CN220209192U - Take screw rod mechanism's bolt tightening formula CTP structure

Info

Publication number: CN220209192U
Application number: CN202321781748.0U
Authority: CN
Inventors: 张烨昕; 唐先念
Original assignee: Huading Guolian Sichuan Battery Material Co ltd
Current assignee: Huading Guolian Sichuan Battery Material Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2023-12-19
Anticipated expiration: 2033-07-07

Abstract

In the CTP structure, a runner system is arranged at the bottom of a battery pack box body and is communicated with a water inlet and a water outlet, a runner cover plate is arranged on the runner system and is in sealing connection with the battery pack box body, and a plurality of electric cores are sequentially stacked in the battery pack box body; the pair of fastening end plates are respectively and vertically connected to two sides of the battery pack box body and clamp the battery cell, two ends of the screw rod mechanisms are respectively and detachably connected with a third mounting hole on the pair of fastening end plates through tightening bolts, and the screw rod mechanisms and the fastening end plates surround the battery cell; the tightening operation rod is detachably connected with the tightening bolt, the tightening cavity accommodates the tightening bolt, and the handle is arranged at one end of the tightening cavity far away from the tightening bolt. The CTP structure is convenient to install and detach.

Description

Take screw rod mechanism's bolt tightening formula CTP structure

Technical Field

The utility model relates to the technical field of battery packs, in particular to a bolt tightening type CTP structure with a screw mechanism.

Background

The battery pack is an important component of a new energy technology, provides energy and power for storage of a new energy automobile, adopts a CTP structure for improving the energy density of the battery pack at present, and CTP (Cell To Pack) is a module-free battery pack structure technology, and the structure can reduce the energy density and reduce the cost, but the existing CTP adopts a welding mode and is inconvenient to detach.

The above information disclosed in the background section is only for enhancement of understanding of the background of the utility model and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide a screw-down type CTP structure with a screw mechanism, which is convenient to install and detach by stacking electric cores and then bidirectionally extruding the screw through a tool.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model relates to a bolt tightening type CTP structure with a screw mechanism, which comprises:

a battery pack case, which includes,

a water inlet and a water outlet which are arranged at one side of the battery pack box body,

the runner system is arranged at the bottom of the battery pack box body and communicated with the water inlet and the water outlet,

a runner cover plate which is covered on the runner system and is connected with the battery pack box body in a sealing way,

the first mounting holes are distributed on two sides of the battery pack box body;

the battery pack comprises a plurality of battery cells, a plurality of battery pack box bodies and a plurality of battery modules, wherein the battery cells are sequentially stacked in the battery pack box bodies;

a pair of fastening end plates respectively vertically connected to both sides of the battery pack case and clamping the battery cells, the fastening end plates comprising,

a plurality of second mounting holes which are arranged at the bottom of the fastening end plate and are fixedly connected with the first mounting holes in a matching way,

a plurality of third mounting holes provided at the waist portion of the fastening end plate;

the two ends of the screw rod mechanisms are detachably connected with the third mounting holes on the pair of fastening end plates through tightening bolts respectively, and the screw rod mechanisms and the fastening end plates surround the battery cell;

a tightening lever detachably connected to the tightening bolt, the tightening lever including,

a tightening cavity accommodating the tightening bolt,

the handle is arranged at one end of the tightening cavity, which is far away from the tightening bolt.

In the screw-down type CTP structure with the screw mechanism, the battery pack box body further comprises,

a plurality of fourth mounting holes arranged on two sides of the battery pack case,

the positioning pins are arranged on the battery pack box body and are adjacent to the first mounting holes.

The CTP structure with the screw mechanism and screwed by the bolt further comprises an electric device support, wherein the electric device support comprises a fifth mounting hole matched with the fourth mounting hole, a positioning hole matched with a positioning pin and a sixth mounting hole for mounting the electric device, and the electric device support is mounted on the battery pack box body in a positioning mode through the fourth mounting hole, the fifth mounting hole, the positioning hole and the positioning pin.

In the screw-down type CTP structure with the screw mechanism, the electric device support is provided with a first reinforcing rib.

In the screw-down type CTP structure with the screw mechanism, the waist of the fastening end plate is provided with a second reinforcing rib.

In the screw-down type CTP structure with the screw mechanism, the second mounting hole is an elliptical hole.

In the screw-down type CTP structure with the screw mechanism, the battery pack box body is of a rectangular structure.

In the screw-down type CTP structure with the screw mechanism, the battery pack box body is provided with a convex edge for limiting and fastening the end plate.

In the screw-down type CTP structure with the screw mechanism, the electric cells are stacked in the battery pack box body in an array manner.

In the screw-down type CTP structure with the screw mechanism, the runner system comprises a serpentine coil.

In the technical scheme, the bolt tightening type CTP structure with the screw mechanism has the following beneficial effects: the CTP structure with the screw mechanism and the screw tightening type screw is characterized in that after the electric cores are stacked, the screws are bidirectionally extruded through the tool, so that the effect of inhibiting expansion force is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of a structure of a screw-down CTP structure with a screw mechanism;

FIG. 2 is a schematic diagram of a battery pack case of CTP structure according to the present utility model;

FIG. 3 is a schematic view of the back flow channel structure of the CTP structure battery pack case of the present utility model;

FIG. 4 is a schematic diagram of a stacked cell structure of the present utility model;

FIG. 5 is a schematic view of a first visual construction of a fastening end plate according to the present utility model;

FIG. 6 is a second visual schematic view of a fastening end plate according to the present utility model;

fig. 7 is a schematic diagram of a stacked cell and fastening end plate according to the present utility model;

FIG. 8 is a schematic view of the structure of the special tightening tool of the utility model;

fig. 9 is a schematic structural diagram of a cell according to the present utility model after the cell is compressed by tightening a bolt;

fig. 10: the first visual structure schematic diagram of the electric appliance part mounting bracket is provided;

fig. 11: the utility model relates to a second visual structure schematic diagram of an electric appliance part mounting bracket.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-11, in one embodiment, a screw-down CTP structure with a screw mechanism of the present utility model comprises,

the battery pack case 1, which includes,

a water inlet and outlet 1-5 which is arranged at one side of the battery pack box body 1,

the runner system 1-6 is arranged at the bottom of the battery pack box body 1 and is communicated with the water inlet and outlet 1-5,

a runner cover plate 1-7 which is covered on the runner system 1-6 and is connected with the battery pack box body 1 in a sealing way,

a plurality of first mounting holes 1-4 distributed on both sides of the battery pack case 1;

a plurality of electric cells 2 stacked in sequence in the battery pack case 1;

a pair of fastening end plates 4 vertically connected to both sides of the battery pack case 1, respectively, and clamping the battery cells 2, the fastening end plates 4 including,

a plurality of second mounting holes 4-2 which are arranged at the bottom of the fastening end plate 4 and are fixedly connected with the first mounting holes 1-4,

a plurality of third mounting holes 4-1 provided at the waist portion of the fastening end plate 4;

a plurality of screw mechanisms 3, both ends of which are detachably connected to the third mounting holes 4-1 on the pair of fastening end plates 4 via tightening bolts 7, respectively, and the screw mechanisms 3 and the fastening end plates 4 surround the battery cell 2;

a tightening lever 5 detachably connected to the tightening bolt 7, the tightening lever 5 including,

a tightening chamber 5-2, which accommodates said tightening bolt 7,

a handle 5-1 provided at an end of the tightening chamber 5-2 remote from the tightening bolt 7.

In the preferred embodiment of the screw-down CTP structure with screw mechanism 3, the battery pack case 1 further comprises,

a plurality of fourth mounting holes 1-1 provided at both sides of the battery pack case 1,

and a plurality of positioning pins 1-2 which are arranged on the battery pack case 1 and are adjacent to the first mounting holes 1-4.

In the preferred embodiment of the screw-tightening CTP structure with the screw mechanism 3, the CTP structure further comprises an electrical device bracket 6, which comprises a fifth mounting hole 6-2 matched with the fourth mounting hole 1-1, a positioning hole 6-1 matched with the positioning pin 1-2, and a sixth mounting hole 6-4 for mounting the electrical device, wherein the electrical device bracket 6 is positioned and mounted on the battery pack box 1 through the fourth mounting hole 1-1, the fifth mounting hole 6-2, the positioning hole 6-1 and the positioning pin 1-2.

In the preferred embodiment of the screw-down CTP structure with the screw mechanism 3, the electric device bracket 6 is provided with a first reinforcing rib 6-3.

In the preferred embodiment of the screw-down CTP structure with the screw mechanism 3, the waist portion of the fastening end plate 4 is provided with the second reinforcing rib 4-3.

In the preferred embodiment of the screw-down CTP structure with the screw mechanism 3, the second mounting hole 4-2 is an oval hole.

In the preferred embodiment of the screw-tightening CTP structure with the screw mechanism 3, the battery pack case 1 has a rectangular structure.

In the preferred embodiment of the screw-down CTP structure with the screw mechanism 3, the battery pack case 1 has a flange for limiting the fastening end plate 4.

In the preferred embodiment of the screw-down CTP structure with screw mechanism 3, the cells 2 are stacked in an array in the battery pack case 1.

In the preferred embodiment of the screw-down CTP configuration with screw mechanism 3, the runner systems 1-6 comprise serpentine coils.

In one embodiment, the battery pack case 1 is provided with a limit post 1-3 for limiting and fastening the end plate 4.

In one embodiment, the screw-down CTP structure with the screw mechanism comprises a battery pack case 1, an electric core 2, a screw mechanism 3, a fastening end plate 4, a tightening operation rod 5, an electric device bracket 6, and a tightening screw 7, see fig. 1. Further, a fourth mounting hole 1-1 and a positioning pin 1-2 of the electrical equipment support 6 are arranged on the battery pack box body 1 to realize the mounting and fixing of the subsequent electrical equipment support 6; further, first mounting holes 1-4 for fixing the fastening end plate 4 are provided to facilitate the mounting and fixing of the subsequent fastening end plate 4, and water inlet and outlet ports 1-5 for inflow and outflow of cooling water, see fig. 2. Further, fig. 3 is a schematic diagram of a second visual structure of the battery pack case 1 according to the present utility model, where the bottom is fixed together by a runner cover plate 1-7 and a runner system 1-6 in a welding manner, so as to realize sealing of the entire runner system; further, the small module assemblies a are formed by stacking the battery cells 2 into the case 1 in sequence, see fig. 4.

Referring to fig. 5 and 6, the waist of the fastening end plate 4 is provided with a third mounting hole 4-1 of the bolt mechanism 3, and the battery cells 2 are fixed together through the subsequent screwing action of the bolt mechanism 3; further, an oval second mounting hole 4-2 is designed at the bottom of the fastening end plate 4 for fixing with the first mounting hole 1-4 on the battery pack case 1; in order to increase the strength of the end plate, a second reinforcing rib 4-3 is designed at the waist part and used for better inhibiting the expansion of the large surface of the later-stage battery cell 2; this forms a module B, see fig. 7. Further, the tightening operation lever 5 of the present utility model includes a handle 5-1 of the tightening operation lever for manual operation and a tightening cavity 5-2 of the tightening bolt 7, the tightening bolt 7 is placed in the cavity 5-2 to effect one-by-one tightening of the screw mechanisms 3, and the tightening end plate 4 and the battery cell 2 are connected as one unit C through the screw mechanisms 3, see fig. 9. Further, in order to facilitate the installation of the front electric parts, the installation bracket 6 of the present utility model includes a positioning hole 6-1 and a fifth installation hole 6-2, to realize the positioning with the positioning pin 1-2 on the fastening end plate 1 and the installation function of the fourth installation hole 1-1; further, the first reinforcing ribs 6-3 are designed, so that the strength of the installation position is increased; further, a sixth mounting hole 6-4 for the electrical component is designed at the waist of the bracket 6 to realize the subsequent mounting of the electrical component, see fig. 10 and 11.

Finally, it should be noted that: the described embodiments are intended to be illustrative of only some, but not all, of the embodiments disclosed herein and, based on the embodiments disclosed herein, all other embodiments that may be made by those skilled in the art without the benefit of the teachings herein are intended to be within the scope of this application.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. A screw-down type CTP structure with a screw mechanism is characterized in that the structure comprises,

a battery pack case, which includes,

a tightening cavity accommodating the tightening bolt,

2. The screw-down CTP structure with screw mechanism according to claim 1, wherein said battery pack case further comprises,

3. The CTP structure with screw mechanism according to claim 2, further comprising an electrical device holder comprising a fifth mounting hole to which the fourth mounting hole is fitted, a positioning hole to which a positioning pin is fitted, and a sixth mounting hole for mounting an electrical device, the electrical device holder being positionally mounted to the battery pack case via the fourth mounting hole, the fifth mounting hole, the positioning hole, and the positioning pin.

4. A screw-down CTP structure with screw mechanism according to claim 3, wherein said electrical device support is provided with a first stiffener.

5. The CTP structure with screw mechanism according to claim 1, wherein the waist portion of the fastening end plate is provided with a second reinforcing rib.

6. The CTP structure with screw mechanism according to claim 1, wherein the second mounting hole is an oval hole.

7. The CTP structure with screw-down type of claim 1 wherein said battery pack case is a rectangular structure.

8. The CTP structure with screw-down type of claim 1 wherein the battery pack case has a flange for limiting the fastening end plate.

9. The screw-down CTP structure with screw mechanism according to claim 1, wherein said cells are stacked in an array in a battery pack case.

10. The screw-on CTP structure with screw mechanism according to claim 1, wherein said flow channel system comprises a serpentine coil.