KR20240100017A - A Pressing Jig For Assembling A Battery Pack And A Battey Pack Assembly Method Using The Same - Google Patents

Abstract

The present invention relates to a press jig for assembling a battery pack and a method of assembling a battery pack using the same. Specifically, the present invention relates to a flat support plate, a pair of fixing bars spaced apart from each other on the upper surface of the support plate, and a band-shaped end portion. A press jig for assembling a battery pack, characterized in that the press belt is formed with fixing parts that are respectively fixed to the fixing bar, and the press belt includes a length adjustment member that can adjust the length of the press belt, and a method of assembling a battery pack using the same. It's about.

Description

Pressing jig for assembling a battery pack and a battery pack assembly method using the same {A Pressing Jig For Assembling A Battery Pack And A Battey Pack Assembly Method Using The Same}

The present invention relates to a press jig for assembling a battery pack and a method of assembling a battery pack using the same. Specifically, the press jig for assembling a battery pack can prevent case assembly defects caused by wires stored in the case when assembling a case of a battery pack. This relates to a jig and a method of assembling a battery pack using the same.

Recently, the demand for secondary batteries that can store generated electrical energy is increasing due to air pollution caused by the use of fossil fuels and the development of alternative energy due to energy depletion. Secondary batteries that can be charged and discharged are closely used in our daily lives, including in mobile devices, electric vehicles, and hybrid electric vehicles.

The capacity of secondary batteries, which are used as an energy source for various electronic devices that are indispensable in modern society, is increasing due to the increased use and complexity of mobile devices and the development of electric vehicles. In order to meet user demand, a large number of battery cells are placed in small devices, but battery modules that electrically connect multiple battery cells or battery packs that include multiple such battery modules are used in automobiles, etc.

Meanwhile, a battery pack may contain one or more battery modules, and these battery modules may include a wire for supplying electrical energy to the outside or a wire for electrically connecting a BMS (Battery Management System) with the battery cells stored in the battery module. It can be provided.

Figure 1 is a perspective view showing a battery module according to the prior art. As shown in Figure 1, the battery module according to the prior art includes a case 10 for storing battery cells, one side of which is connected to the battery cells in the case 10, and the other side of which is connected to an external device or BMS (Battery Management System). It may be configured to include a wire-type harness 20.

The wire-type harness 20 according to the prior art can push the battery module out by applying a repulsive force to the battery pack case when storing it in the battery pack case. This repulsive force creates a gap between the battery pack cases and is used by fastening members such as bolts. There is a problem that fastening defects may occur during fastening.

In addition, since the worker directly applies pressure to the repulsion force and performs the tightening work after fixing, gaps between cases may still occur and fastening defects may occur, and the worker must continuously apply pressure during the fastening work. There is a problem that worker fatigue increases and work efficiency decreases.

Korean Patent Publication No. 2011-0136774

In order to solve the above problems, the present invention provides a press jig for assembling a battery pack that can prevent fastening defects due to a gap being formed between the cases of the battery pack due to the repulsion force of the wire during the fastening operation, and a battery pack using the same. The purpose is to provide an assembly method.

In addition, the purpose of the present invention is to provide a press jig for battery pack assembly that can improve worker fatigue and work efficiency by pressurizing the case of the battery pack during fastening work using the press jig, and a method of assembling a battery pack using the same. .

In order to achieve the above object, the press jig for assembling a battery pack according to the present invention includes a flat support plate 100 and a pair of fixing bars 200 spaced apart from each other on the upper surface of the support plate 100. , a push belt 300 that is strip-shaped and has fixing parts 310 each fixed to the fixing bar 200 at the ends, and the push belt 300 has a length that can adjust the length of the push belt 300. It is characterized in that it includes an adjustment member (400).

Additionally, in the press jig for assembling a battery pack according to the present invention, the support plate 100 is characterized by being provided with a guide wall 110 capable of guiding the seating position of the battery pack.

In addition, in the pressing jig for assembling a battery pack according to the present invention, the pressing belt 300 is characterized by being made of an elastic material.

Additionally, in the press jig for assembling a battery pack according to the present invention, the elastic material is characterized in that it includes at least one from the group consisting of rubber, polyurethane, and silicone.

In addition, in the press jig for assembling a battery pack according to the present invention, the fixing part 310 has a curved end so that it can be fastened to the fixing bar 200.

In addition, in the press jig for battery pack assembly according to the present invention, the length adjustment member 400 includes a belt fixing shaft 410 connected to the press belt 300, and a fixing body for fixing the belt fixing shaft 410. (420), it is characterized in that it includes a handle (430), a latch gear (440), and a lever (450) formed to be rotatable on the fixing body (420).

In addition, in the press jig for assembling a battery pack according to the present invention, the press belt 300 is provided with an adhesion plate 500 that is in close contact with the upper surface of the battery pack seated on the support plate 100.

In addition, in the press jig for assembling a battery pack according to the present invention, a buffer member 510 is further provided on the lower surface of the contact plate 500.

In addition, the battery pack assembly method using the press jig for battery pack assembly according to the present invention includes a first step of positioning the battery pack (P) on the upper surface of the support plate 100, and fixing the battery pack (P) located on one side of the support plate 100. A second step of connecting the fixing part 310 formed on one side of the push belt 300 to the bar 200, so that the contact plate 500 formed on the push belt 300 is in close contact with the upper surface of the battery pack (P). It is characterized by comprising a third step of positioning and a fourth step of fixing the case of the battery pack (P) through a fastening member (B).

In addition, the battery pack assembly method according to the present invention further includes the step of adjusting the length of the pressing belt 300 through the length adjustment member 400 before the fourth step.

Additionally, in the battery pack assembly method according to the present invention, the contact plate 500 is positioned so as not to overlap the fastening position of the fastening member (B).

As described above, the press jig for assembling a battery pack according to the present invention and the method of assembling a battery pack using the same prevent fastening defects by performing the fastening operation while continuously applying pressure and fixing the case of the battery pack. There is an advantage in that it can be prevented.

In addition, the press jig for battery pack assembly according to the present invention and the battery pack assembly method using the same have the advantage of accumulating worker fatigue and improving work efficiency by offsetting the repulsion force of the wire by using the press jig.

Figure 1 is a perspective view showing a battery module in the prior art.
Figure 2 is a perspective view showing a pressing jig for assembling a battery pack according to a first preferred embodiment of the present invention.
Figure 3 is a perspective view showing a guide wall according to a first preferred embodiment of the present invention.
Figure 4 is an enlarged perspective view showing the fixing part of the pressing belt according to the first preferred embodiment of the present invention.
Figure 5 is a perspective view showing a length adjustment member according to a first preferred embodiment of the present invention.
Figure 6 is a perspective view showing a contact plate according to a first preferred embodiment of the present invention.
Figure 7 is a perspective view showing a contact plate according to a second preferred embodiment of the present invention.

Hereinafter, with reference to the attached drawings, an embodiment by which a person skilled in the art can easily carry out the present invention will be described in detail. However, when explaining in detail the operating principle of a preferred embodiment of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

In addition, the same reference numerals are used for parts performing similar functions and actions throughout the drawings. Throughout the specification, when a part is said to be connected to another part, this includes not only cases where it is directly connected, but also cases where it is indirectly connected through another element in between. In addition, including a certain component does not mean excluding other components unless specifically stated to the contrary, but rather means that other components may be further included.

Hereinafter, the press jig for assembling a battery pack according to the present invention and the method of assembling a battery pack using the same will be described with reference to the attached drawings.

Figure 2 is a perspective view showing a press jig for assembling a battery pack according to a first preferred embodiment of the present invention, Figure 3 is a perspective view showing a guide wall according to a first preferred embodiment of the present invention, and Figure 4 is a preferred embodiment of the present invention. Figure 5 is an enlarged perspective view showing the fixing part of the pressing belt according to the first embodiment of the present invention, Figure 5 is a perspective view showing the length adjustment member according to the first preferred embodiment of the present invention, and Figure 6 is a close contact according to the first preferred embodiment of the present invention. This is a perspective view showing the plate.

As shown in Figures 2 to 6, the press jig for assembling a battery pack according to the present invention includes a support plate 100, a fixing bar 200, a press belt 300, a length adjustment member 400, and an adhesion plate ( 500).

The support plate 100 plays a role similar to a workbench on which a battery pack to be assembled into a flat plate is placed, and may be provided with a guide wall 110 on its upper surface.

The support plate 100 may be formed as a shelf or table, as long as the battery pack to be assembled can be stably seated on the top surface.

The guide wall 110 is for guiding the seating position of the battery pack (P) to be assembled, and extends and supports the wall portion 111 in close contact with the lower edge of the battery pack (P) and the lower side of the wall portion 111. It may be configured to include a close contact portion 112 that is in close contact with the plate 100.

The wall portion 111 supports, adheres to, and fixes the bottom edge of the battery pack (P), and may have a shape corresponding to the bottom edge of the battery pack (P).

The close contact portion 112 extends from the lower side of the wall portion 111 in a direction perpendicular to the wall portion 111 and is in close contact with the support plate 100, and the close contact portion 112 is attached to the support plate 100 using bolts or adhesive members. It can be formed to be attachable and detachable.

Accordingly, the guide wall 110 can improve work efficiency by limiting the movement of the battery pack P during work.

In addition, the guide wall 110 has the advantage of being able to select a position on the support plate 100 according to the size or shape of the battery pack (P), supporting and fixing the battery pack (P) of various shapes. .

The fixing bars 200 may be formed as a pair, and may be formed on the upper surface of the support plate 100 to be spaced apart at a certain distance.

The fixing bar 200 may be configured to include a vertical portion that extends a certain length in a direction perpendicular to the support plate 100 while being spaced a certain distance apart, and a horizontal portion that connects the vertical portions to each other.

At this time, the fixing bar 200 may be configured to include one vertical portion extending a certain length in a direction perpendicular to the support plate 100 and a horizontal portion extending in a direction perpendicular to the vertical portion from an end of the vertical portion.

The push belt 300 is shaped like a long strip and is provided with fixing parts 310 at each end, and serves to apply pressure to the upper surface of the battery pack (P) seated on the support plate 100.

The push belt 300 may be made of an elastic material, thereby preventing excessive pressure from being applied to the battery pack (P).

Here, the push belt 300 may include one or more from the group consisting of rubber, polyurethane, and silicon, and is not limited to this as long as it is an elastic material that can relieve excessive pressure on the battery pack (P). No.

The fixing portions 310 are formed at both ends of the push belt 300 and are respectively connected to the fixing bars 200 provided on the upper surface of the support plate 100 so that the push belt 300 is connected to the battery pack (P). It is possible to maintain the state of applying pressure and tension.

The fixing part 310 may have a curved end so that it can be fastened to the fixing bar 200. For example, it may have a hook shape, and it is not limited to this because it can be fastened to the fixing bar 200.

The length adjustment member 400 is formed on the push belt 300 to partially adjust the length of the push belt 300, and includes a belt fixing shaft 410, a fixing body 420, a handle 430, and a latch gear ( It may be configured to include 440) and a lever 450.

The belt fixing shaft 410 may be connected to the push belt 300 in the form of a bar. For example, the push belt 300 may be wound around a latch gear.

The fixing body 420 can be supported by fastening the belt fixing shaft 410, and belt fixing shafts 410 may be provided on both sides of the fixing body 420, respectively.

The handle portion 430 may be installed so that one side is connected to one end of the fixing body 420 so that it can be rotated, and may have a certain space formed near the center.

Slit-shaped guide holes 431 may be formed on both sides of the handle portion 431.

The latch gear 440 may be formed at both ends of the belt fixing shaft 410, and may be shaped like a gear, and the gears may be configured with one side inclined.

As shown in FIG. 7(a), the lever 450 includes a flat lever body 451 with a partially cut central portion, a support portion 452 located in the cut central portion of the lever body 451, and the lever body 451. ), a protrusion 453 protruding from both sides of the lever body 451, a spring guide 454 extending a certain length from the edge of the cut portion of the lever body 451 in the direction of the support portion 452, and a spring 455 located on the spring guide 454. It may be configured to include.

Additionally, the lever 450 may be located in a space near the center of the handle portion 430, and one side of the lever body 451 may be located in close contact between the teeth of the latch gear 440.

The support portion 452 is located in the cut portion of the lever body 451, and both sides are fixed to the handle portion 430, and supports one side of the spring 455 to maintain the spring in a compressed state.

The protrusion 453 can be inserted into the guide hole 431 formed in the handle portion 430, and the lever 450 can be moved along the guide hole 431.

The spring guide 454 guides and fixes the position of the spring 455 and prevents the spring 455 from leaving its designated position.

The spring 455 is formed larger than the diameter of the spring guide 454 and is located in a shape that surrounds the spring guide 454, one side is in close contact with the rare body 451, and the other side is in close contact with the support portion 452 and is compressed. state, and because of this, the lever body 451 can be brought into close contact between the teeth.

The contact plate 500 has a flat plate shape with a certain thickness and may have a through hole 510 penetrating the central portion in the longitudinal direction.

The push belt 300 can pass through the through hole 510 of the adhesion plate 500, and the adhesion plate 500 is positioned to be in close contact with the upper surface of the case of the battery pack (P) seated on the support plate 100. can do.

The contact plate 500 allows the pressure applied to the upper surface of the case of the battery pack P by the pressing belt 100 to be applied more broadly.

Figure 7 is a perspective view showing a contact plate according to a second preferred embodiment of the present invention.

7 , the press jig for assembling a battery pack according to a second preferred embodiment of the present invention is similar to the battery pack according to the first embodiment described in FIGS. 2 to 6 except for the shape of the contact plate 500. Since it is the same as the press jig for pack assembly, description of the same configuration will be omitted.

The contact plate 500 according to the second embodiment may further be provided with a buffer member 520 on its lower surface.

The buffer member 520 reduces the length of the pressing belt 300 by the length adjustment member 400 to prevent the battery pack (P) from being damaged by excessive pressure being applied more than necessary when applying pressure to the battery pack (P). There is an advantage to being able to

The buffer member 520 may be, for example, rubber, polyurethane, silicone, sponge, etc., and is not limited thereto as long as it is a material that can relieve some of the pressure excessively applied to the battery pack (P) by the pressing belt 300. .

In addition, the battery pack assembly method using the press jig for battery pack assembly according to the present invention includes a first step of positioning the battery pack (P) on the upper surface of the support plate 100, and a fixing bar located on the support plate 100 ( A second step of connecting the fixing portions 310 formed at both ends of the push belt 300 to 200, where the adhesion plate 500 formed on the push belt 300 is positioned so as to be in close contact with the upper surface of the battery pack (P). It may be configured to include a third step and a fourth step of fixing the case of the battery pack (P) through the fastening member (B).

The first step of positioning the battery pack (P) on the upper surface of the support plate 100 is the step of positioning it to be seated and fixed between the guide walls 110 on the upper surface of the support plate 100.

The second step of connecting the fixing part 310 formed on one side of the push belt 300 to the fixing bar 200 located on one side of the support plate 100 is after the battery pack P is seated on the push belt 300. This is the step of fastening the fixing parts 310 to the fixing bars 200 and applying pressure to the battery pack P.

The third step is to position the contact plate 500 formed on the push belt 300 in close contact with the upper surface of the battery pack (P). This is the step to ensure that it is located on the top of the case.

At this time, the contact plate 500 may be positioned so as not to overlap the fastening member (B) for assembling and fastening the case of the battery pack (P).

The fourth step of fixing the case of the battery pack (P) through the fastening member (B) is to fix it using the fastening member (B) while the case of the battery pack (P) is in close contact with the press jig for battery pack assembly. and concluding step.

Here, before the fourth step, a step of adjusting the pressure applied to the battery pack P by adjusting the length of the pressing belt 300 through the length adjustment member 400 may be performed.

At this time, when the operator uses the lever 450 of the length adjustment member 400, the lever body 451 may be brought into close contact with and inserted between the teeth of the latch gear 440 by the expansion force of the compressed spring 455.

In the above state, if the handle part 430 is repeatedly moved up and down, the latch gear 440 rotates upward when the handle part 430 rises, and when the handle part 430 falls, the lever body 451 comes down on the latch gear 440, and the latch gear 440 is fixed without rotating.

Those of ordinary skill in the field to which the present invention pertains will be able to perform various applications and modifications within the scope of the present invention based on the above contents.

100: support plate
110: guide wall
111: wall portion 112: close contact portion
200: fixed bar
300: Push belt
310: fixing part
400: Length adjustment member
410: Belt fixing axis
420: Fixed body
430: Handle part
431: Guide hole
440: Latch gear
450: lever
451: lever body 452: support
453: Protrusion 454: Spring guide
455: spring
500: Adhesion plate
510: Through hole
520: Buffer member
P: battery pack
B: fastening member

Claims (11)

A flat support plate;
a pair of fixing bars spaced apart from each other on the upper surface of the support plate;
A push belt that is shaped like a strip and has fixing parts at the ends that are respectively fixed to the fixing bars; and
A pressing jig for assembling a battery pack, characterized in that the pressing belt includes a length adjustment member capable of adjusting the length of the pressing belt. According to paragraph 1,
A pressing jig for assembling a battery pack, characterized in that the support plate is provided with a guide wall capable of guiding the seating position of the battery pack. According to paragraph 1,
A pressing jig for assembling a battery pack, characterized in that the pressing belt is made of an elastic material. According to paragraph 3,
A pressing jig for assembling a battery pack, wherein the elastic material includes at least one from the group consisting of rubber, polyurethane, and silicon. According to paragraph 1,
A press jig for assembling a battery pack, wherein the fixing part has a curved end so that it can be fastened to the fixing bar. According to paragraph 1,
The length adjustment member includes a belt fixing shaft connected to the push belt, a fixing body for fixing the belt fixing shaft, a handle rotatably formed on the fixing body, a latch gear, and a lever. Dragon push jig. According to paragraph 1,
A pressing jig for assembling a battery pack, characterized in that the pressing belt is provided with a contact plate that is in close contact with the upper surface of the battery pack seated on the support plate. In clause 7,
A pressing jig for assembling a battery pack, characterized in that a buffer member is further provided on the lower surface of the adhesion plate. A method of assembling a battery pack using the pressing jig for assembling a battery pack according to any one of claims 1 to 8,
A first step of placing the battery pack on the upper surface of the support plate;
A second step of connecting a fixing part formed on one side of the push belt to a fixing bar located on one side of the support plate;
A third step of positioning the contact plate formed on the pressing belt to be in close contact with the upper surface of the battery pack; and
A battery pack assembly method comprising a fourth step of fixing the case of the battery pack through a fastening member. According to clause 9,
The battery pack assembly method further comprising the step of adjusting the length of the push belt through a length adjustment member before the fourth step. According to clause 9,
A battery pack assembly method, characterized in that the contact plate is positioned so as not to overlap the fastening position of the fastening member.

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