CN215418282U

CN215418282U - Power battery module assembly and shaping equipment

Info

Publication number: CN215418282U
Application number: CN202121800706.8U
Authority: CN
Inventors: 罗雪龙
Original assignee: Time Faw Power Battery Co ltd
Current assignee: Time Faw Power Battery Co ltd
Priority date: 2021-08-03
Filing date: 2021-08-03
Publication date: 2022-01-04
Anticipated expiration: 2031-08-03

Abstract

The utility model provides an assembling and shaping device of a power battery module, which comprises a shaping bottom plate, wherein a plurality of air suction holes are uniformly formed in the shaping bottom plate; a sealing pressing frame is arranged right above the shaping bottom plate; a transverse sealing shaping film capable of lifting up and down is arranged between the sealing pressing frame and the shaping bottom plate, and the length and the width of the sealing shaping film are both larger than those of the sealing pressing frame; a lifting power device for driving the sealing pressing frame to lift is fixedly connected above the sealing pressing frame; and a circle of corresponding sealing device is arranged on the lower surface of the sealing pressing frame and/or the upper surface of the shaping bottom plate. The power battery module disclosed by the utility model is uniformly and tightly contacted with the sealing shaping film, the power battery module is uniformly extruded and stressed, the glue inside the power battery module is good in dispersibility and bonding effect, the power battery module is small in shaping size deviation and high in precision, and the energy density of the power battery module after shaping is not lost.

Description

Power battery module assembly and shaping equipment

Technical Field

The utility model relates to the field of power battery assembly, in particular to an assembly and shaping device for a power battery module.

Background

Module & Pack: the power battery pack refers to a combination body which can directly provide electric energy after battery monomers are combined in a series-parallel connection mode and a protection circuit board and a shell are added, so that a battery pack is formed (hereinafter, modules refer to battery packs).

Module forming process: when a battery pack is formed by connecting single battery cells in series and parallel, a certain amount of glue needs to be coated on each interface (between the battery cells, between the battery cells and side plates, and the like), after the glue is solidified, the glue forms the battery cells into a relatively stable whole, and in the later assembly or operation process, the size fluctuation of the module is reduced, the acting force among all the components is reduced, so that the use performance and the service life of the product are improved.

Importance of Module Molding Process: when the Module is loaded or forms a Pack, the size deviation can cause the Module to interfere with the vehicle body, so that the vehicle body is damaged or the Module fails; meanwhile, the stability and consistency of the Module size are improved, and during the design process, the buffer can be reduced, the space utilization rate is improved, and the energy density is increased;

the current Module forming process comprises the following steps: the side plates are clamped by the heating plates, so that the Module side plates are tightly attached to the battery cell, the product size is qualified, the side plates are heated by the heating plates, the glue is quickly cured and formed, and the curing and forming time is reduced;

this technique has the following problems: heating plate parallelism: the angle deviation of the heating plate is 1 DEG, the gap between the side plate and the heating plate is approximately equal to 10mm, so that the conditions of uneven surface temperature of the side plate → over-specification temperature difference of two sides of the Module, unstressed force of one side of the side plate → unpressed glue → insufficient bonding area → insufficient structural strength of the Module and large fluctuation of the width of the Module (1mm) → 1% reduction of energy density are caused; monitoring the process: the process monitoring (the side plate clamping state) cannot be accurately carried out, only the air pressure of a workshop is monitored, and the risks of equipment identification incapability and product failure exist; thirdly, the clamping force of the side plate is greatly influenced by the pressure of the factory building (0.5-0.7 MPa).

SUMMERY OF THE UTILITY MODEL

The utility model provides an assembling and shaping device of a power battery module, which solves the defects that in the prior art, when the power battery module is assembled, a heating plate is adopted to clamp a side plate for shaping, the angle of the heating plate is deviated, a gap exists between the side plate and the heating plate, the surface of the side plate is heated unevenly, the stress of the side plate is uneven, the temperature difference of two sides of a power battery exceeds the specification, the structural strength of the power battery is insufficient, and the energy density of the power battery is reduced.

The technical scheme of the utility model is realized as follows:

the assembling and shaping equipment for the power battery module comprises a shaping bottom plate, wherein a plurality of air suction holes are uniformly formed in the shaping bottom plate; a sealing pressing frame is arranged right above the shaping bottom plate; a transverse sealing shaping film capable of lifting up and down is arranged between the sealing pressing frame and the shaping bottom plate, and the length and the width of the sealing shaping film are both larger than those of the sealing pressing frame; a lifting power device for driving the sealing pressing frame to lift is fixedly connected above the sealing pressing frame; a circle of corresponding sealing device is arranged on the lower surface of the sealing pressing frame and/or the upper surface of the shaping bottom plate; the shaping bottom plate is used for placing the power battery module; the sealing pressing frame is used for pressing the sealing shaping film in cooperation with the shaping bottom plate to form a sealing cavity between the middle of the sealing shaping film and the shaping bottom plate; the air exhaust hole is used for vacuumizing the sealing cavity to form negative pressure; the sealed shaping film is used for shaping the power battery module in the sealed cavity through the uniform pressure of atmospheric pressure when the vacuumizing hole is vacuumized to form negative pressure.

Further, the lifting power device comprises a hanging bracket, a first lifting cylinder is fixedly connected to the upper end of the hanging bracket, the sealing pressing frame is fixedly connected to the lower portion of the hanging bracket, and two ends of the sealing shaping film are fixedly connected to two ends of the hanging bracket. Or, the lift power device include fixed connection in the second lift cylinder of sealed pressure frame upper end, the both ends of sealed design membrane are evenly connected with the coiling mechanism, and the coiling mechanism is used for control the lift at sealed design membrane middle part, the coiling mechanism includes the winding rod, and the tip transmission of winding rod is connected with the rolling motor.

Further, the air exhaust hole is connected with a vacuum pumping device.

Further, the sealing and setting film is a heat-resistant plastic film.

Further, the sealing device is a rubber and plastic sealing washer.

The utility model has the beneficial effects that: when the utility model is used, the sealing press frame and the sealing shaping film are lifted, the power battery module is placed in the middle of the upper surface of the shaping bottom plate through the mechanical gripper, the sealing press frame and the sealing shaping film are descended, the sealing shaping film covers the power battery module, the sealing press frame is matched with the shaping bottom plate to press the edge of the sealing shaping film, a sealing cavity is formed between the middle of the sealing shaping film and the shaping bottom plate, the power battery module is positioned in the sealing cavity, then the vacuumizing equipment vacuumizes the sealing cavity through the air exhaust hole, negative pressure is formed in the sealing cavity, the sealing shaping film is uniformly pressed to the surface of the power battery module under the action of external atmospheric pressure, the power battery module is kept in a clamping state, glue in the power battery module is extruded and uniformly flows into each gap, then is slowly solidified until the size of the power battery module is fixed and shaped after the glue in the power battery module is completely solidified, preferably, the negative pressure state is finished, the sealing press frame and the sealing shaping film are lifted, and the shaped power battery module is taken out through a mechanical gripper.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic structural view of a setting bed in example 1;

fig. 3 is a schematic structural view of embodiment 2.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, an assembling and shaping device for a power battery module comprises a shaping bottom plate 1, wherein a plurality of air suction holes 11 are uniformly formed in the shaping bottom plate 1; a sealing press frame 2 is arranged right above the shaping bottom plate 1; a transverse sealing shaping film 3 capable of lifting up and down is arranged between the sealing press frame 2 and the shaping bottom plate 1, and the length and the width of the sealing shaping film 3 are both larger than those of the sealing press frame 2; a lifting power device for driving the sealing pressing frame 2 to lift is fixedly connected above the sealing pressing frame 2; a circle of corresponding sealing device 4 is arranged on the lower surface of the sealing press frame 2 and/or the upper surface of the shaping bottom plate; the shaping bottom plate 1 is used for placing the power battery module 5; the sealing press frame 2 is used for being matched with the shaping bottom plate 1 to press the sealing shaping film 3, so that a sealing cavity is formed between the middle of the sealing shaping film 3 and the shaping bottom plate 1; the air exhaust hole 11 is used for vacuumizing the sealed cavity to form negative pressure; the sealing shaping film 3 is used for shaping the power battery module 5 in the sealing cavity by uniformly pressing the atmospheric pressure when the air exhaust hole 11 is vacuumized to form negative pressure.

As a preferable technical solution, the lifting power device includes a hanger 61, a first lifting cylinder 62 is fixedly connected to an upper end of the hanger 61, the sealing press frame is fixedly connected below the hanger 61 through a connecting rod 63, and two ends of the sealing shaping film 3 are fixedly connected to two ends of the hanger 61.

Wherein the sealing and setting film 3 is a heat-resistant plastic film. The user also can select the sealed shaping membrane of other materials as required, needs to guarantee durable, and repeated repetitious usage is difficult to damage.

Wherein, the sealing device 4 is a rubber and plastic sealing washer.

Wherein the air extraction hole is connected with a vacuum-pumping device, and the vacuum-pumping device is preferably a vacuum pump

The working principle of the utility model is as follows:

when the utility model is used, the sealing press frame 2 and the sealing shaping film 3 are lifted, the power battery module 5 is placed in the middle of the upper surface of the shaping bottom plate 1 by the mechanical gripper, the sealing press frame 2 and the sealing shaping film 3 are descended, the sealing shaping film 3 covers the power battery module 5, the sealing press frame 2 is matched with the shaping bottom plate 1 to press the edge of the sealing shaping film 3, so that a sealing cavity is formed between the middle of the sealing shaping film 3 and the shaping bottom plate 1, the power battery module 5 is positioned in the sealing cavity, then the vacuumizing equipment vacuumizes the sealing cavity through the air exhaust hole 11, negative pressure is formed in the sealing cavity (because the power battery module 5 is formed by connecting a plurality of single electric cores in series and in parallel, a gap is formed between the single electric cores, so that the vacuumizing of the air exhaust hole 11 cannot be influenced), the sealing shaping film is uniformly pressed on the surface of the power battery module 5 under the action of external atmospheric pressure, the power battery module 5 is kept in a clamping state, glue in the power battery module 5 is extruded and flows into each gap uniformly, then the glue is cured slowly, the size of the power battery module 5 is fixed and molded after the glue is cured completely, preferably, the negative pressure state is finished, the sealing pressing frame 2 and the sealing shaping film 3 are lifted, and the shaped power battery module 5 is taken out through a mechanical gripper.

Example 2

Referring to fig. 3, the present embodiment is different from embodiment 1 in that: the lifting power device comprises a second lifting cylinder 7 fixedly connected to the upper end of the sealing pressing frame, rolling devices are evenly connected to the two ends of the sealing shaping film 3 and used for controlling the lifting of the middle part of the sealing shaping film, each rolling device comprises a rolling rod 8, and the end portion of each rolling rod 8 is connected with a rolling motor in a transmission mode.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides an assembly and setting equipment of power battery module which characterized in that:

the air suction device comprises a shaping bottom plate, wherein a plurality of air suction holes are uniformly formed in the shaping bottom plate;

a sealing pressing frame is arranged right above the shaping bottom plate;

a transverse sealing shaping film capable of lifting up and down is arranged between the sealing pressing frame and the shaping bottom plate, and the length and the width of the sealing shaping film are both larger than those of the sealing pressing frame;

a lifting power device for driving the sealing pressing frame to lift is fixedly connected above the sealing pressing frame;

a circle of corresponding sealing device is arranged on the lower surface of the sealing pressing frame and/or the upper surface of the shaping bottom plate;

the shaping bottom plate is used for placing the power battery module; the sealing pressing frame is used for pressing the sealing shaping film in cooperation with the shaping bottom plate to form a sealing cavity between the middle of the sealing shaping film and the shaping bottom plate; the air exhaust hole is used for vacuumizing the sealing cavity to form negative pressure; the sealed shaping film is used for shaping the power battery module in the sealed cavity through the uniform pressure of atmospheric pressure when the vacuumizing hole is vacuumized to form negative pressure.

2. The assembling and shaping equipment for the power battery module as claimed in claim 1, wherein: the lifting power device comprises a hanging bracket, a first lifting cylinder is fixedly connected to the upper end of the hanging bracket, the sealing pressing frame is fixedly connected to the lower portion of the hanging bracket, and two ends of the sealing shaping film are fixedly connected to two ends of the hanging bracket.

3. The assembling and shaping equipment for the power battery module as claimed in claim 1, wherein: the lifting power device comprises a second lifting cylinder fixedly connected to the upper end of the sealing pressing frame, the two ends of the sealing shaping film are evenly connected with winding devices, and the winding devices are used for controlling the middle part of the sealing shaping film to lift.

4. The assembling and shaping equipment for the power battery module as claimed in claim 3, wherein: the winding device comprises a winding roller, and the end part of the winding roller is connected with a winding motor in a transmission manner.

5. The assembling and sizing device for power battery modules as claimed in any one of claims 1 to 4, wherein: the air exhaust hole is connected with a vacuumizing device.

6. The assembling and shaping equipment for the power battery module as claimed in claim 1, wherein: the sealing and shaping film is a heat-resistant plastic film.

7. The assembling and shaping equipment for the power battery module as claimed in claim 1, wherein: the sealing device is a rubber and plastic sealing washer.