KR100406797B1 - Tray for charging and discharging battery - Google Patents

Abstract

According to the invention, the bottom surface; A side wall surrounding a circumference of the bottom surface, the bottom surface being positioned at an intermediate portion thereof to form a lower space; A pocket wall protruding from the bottom surface to form a plurality of pockets into which the battery pouch is inserted, and an insert formed at one side thereof; And a guide attached to one side and fixed to the insert, the guide being inserted into the pocket to support the side surface of the battery pouch, and a tab of the battery pouch passing through the bottom surface corresponding to the pocket. Provided is a tray for battery charging and discharging, in which a hole is formed.

Description

Battery charging tray {Tray for charging and discharging battery}

The present invention relates to a tray for battery charging and discharging, and more particularly, to a tray used for charging and discharging a polymer secondary battery.

Typically, the polymer secondary battery performs a predetermined charge and discharge process after sealing the electrode assembly in a pouch made of aluminum. The pouch of the battery is formed to have a battery accommodating portion for accommodating the electrode assembly and a gas accommodating portion for accommodating the gas, wherein the battery accommodating portion and the gas accommodating portion are interconnected through a passage. The secondary battery discharges the gas generated from the electrode assembly to the gas accommodating part through the charging and discharging process, and then cuts the gas accommodating part in a closed state of the gas passage.

1 schematically shows a part of a typical battery charging and discharging tray.

Referring to the drawings, the tray 11 has a staircase of four layers, and an insertion opening for a battery pouch is formed in each layer. The tray 11 is provided with a first layer insertion hole 12, a second layer battery insertion hole 13, a third layer battery insertion hole 14, and a fourth layer battery insertion hole 15, which are formed in a stepwise manner with each other. do. In the drawings, the intervals indicated by D1, D2, D3, and D4 indicate the widths of the insertion holes into which the individual battery pouches enter. Protruding guides 16 are formed at each interval, and the battery pouches are guided by the protruding guides 16.

As shown in the drawing, the battery pouch 17 includes a gas accommodating part 18, a battery accommodating part 19, and a cover 21 integrally formed with the gas accommodating part 18 and the battery accommodating part ( Between 19) there is formed a gas flow passage not shown. A groove 22 is formed between the gas accommodating portion 18 and the battery accommodating portion 19, and the groove 22 corresponds to the protruding guide 16 of the tray so that the battery pouch 17 is a battery insertion hole. It acts as a guide when inserted into (12, 13, 14, 15). Denoted by reference numeral 20 is an electrode connected to an electrode tab of an electrode assembly (not shown) accommodated inside the battery accommodating portion 19. An electrode pin (not shown) applying power to charge and discharge the battery may contact the electrode 20 to charge and discharge the battery.

In the charging / discharging system of the polymer secondary battery as described above, the tray 11 was able to accommodate 32 batteries, each of which is eight in each layer. However, since the tray 11 accommodated the batteries in a multi-layered cascade, there was a problem that a lot of unnecessary space was generated as a whole. In addition, when contacting the electrode pin (not shown) in order to apply a voltage to the electrode 20 in the state in which the battery is inserted into the tray 11, the contact between the electrode 20 and the electrode pin is not made correctly, accordingly The process was difficult to carry out.

2 is a partial perspective view showing another example of a battery charging and discharging tray.

Referring to the drawings, the tray 25 is provided with a battery insertion portion 33, the insertion portion 33 is formed with a plurality of insertion openings 30 for inserting the battery pouch 17 in an inverted state It is. The battery insertion part 33 is surrounded by the edge 26, and the upper plane 29 of the edge is formed higher than the upper planes 27 of the insertion part 33. A plurality of holes (not shown) are formed at the bottom of the insertion hole 30, and the holes may pass through the electrodes 20 of the battery pouch 17, but may not pass through the battery pouch 17. Formed. Accordingly, when the battery pouch 17 is inserted into the insertion hole 30, the battery pouch 17 is supported by the bottom of the insertion hole in which the hole is formed, and only the electrode 20 may protrude through the hole. The bottom plane of the edge 29 is located lower than the bottom plane 32 of the insertion part 33, so that the bottom face of the insertion part 33 is in a floating state. Therefore, the electrode 20 protruding through the bottom hole of the insertion hole 30 may be maintained in the air without touching the bottom on which the tray 25 is placed.

Insertion port 30 is formed to correspond to the cross-sectional size of the battery. In the insertion port 30, a protruding guide 28 corresponding to the groove 22 of the battery pouch 17 extends from the upper plane 27 to the bottom surface. The battery pouch 17 does not swing in the insertion direction 30 in the width direction of the pouch 17 by the protruding guide 28.

Although the tray shown in FIG. 2 is prevented from swinging the battery by the protruding guide 28, there is a problem in that it cannot accommodate battery pouches 17 of various sizes. That is, since the tray is manufactured so that the insertion port 30 corresponds to the cross-sectional shape of the battery, the tray must also be manufactured again when the size of the battery cross section changes.

The present invention has been made to solve the above problems, it is an object of the present invention to provide an improved battery charging tray.

Another object of the present invention is to provide a charging / discharging tray of a battery capable of accommodating the battery regardless of the thickness of the battery and the dimensions of the width.

Another object of the present invention is to provide a tray for charging a battery, in which a battery is stably held in a pocket by a guide.

1 schematically shows a part of a conventional battery charging and discharging tray.

2 is a partial perspective view schematically showing another example of a battery charging and discharging tray.

Figure 3 is a schematic perspective view of a part of the tray for battery charging and discharging according to the present invention.

4 is a perspective view showing an extract of the guide and the battery pouch shown in FIG.

5 is a perspective view of another example of the guide;

Figure 6 is a schematic perspective view of a part of the tray for battery charging and discharging according to the present invention.

7 is a cross-sectional view of a part of a tray for battery charging and discharging according to the present invention.

8 is a plan view of a part of a tray for battery charging and discharging according to the present invention;

9 is a bottom view of a part of a tray for battery charging and discharging according to the present invention.

<Brief Description of Major Codes in Drawings>

11.Tray 12.13.14.15. Battery compartment

16. Protrusion Guide 17. Battery Pouch

18. Gas compartment 19. Battery compartment

20. Electrode 21. Cover

40. Pocket 41. Pocket Wall

43. Guide 45. Fixing part

In order to achieve the above object, according to the present invention, the bottom surface; A side wall surrounding a circumference of the bottom surface, the bottom surface being positioned at an intermediate portion thereof to form a lower space; A pocket wall protruding from the bottom surface to form a plurality of pockets into which the battery pouch is inserted, and an insert formed at one side thereof; And a guide attached to one side and fixed to the insert, the guide being inserted into the pocket to support the side surface of the battery pouch, and a tab of the battery pouch passing through the bottom surface corresponding to the pocket. Provided is a tray for battery charging and discharging, in which a hole is formed.

According to one feature of the invention, the bottom of the fixing portion of the guide is formed with a hole into which the insert can be inserted.

According to another feature of the invention, the fixing portion of the guide grips the insert in the form of tongs.

According to another feature of the invention, a protrusion is formed on one side of the guide in contact with the side of the battery pouch, the thickness of the protrusion corresponds to the difference between the thickness of the battery pouch and the width of the pocket.

According to another feature of the invention, the pockets are arranged in a line in their longitudinal direction and staggered in their width direction with respect to neighboring pockets.

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings.

3 is a schematic exploded perspective view of a part of a tray for battery charging and discharging according to the present invention.

Referring to the drawings, the battery charge and discharge tray has a plurality of pockets (40) into which the battery pouch (17) can be inserted, and the battery pouch (17) in the pocket (40) can be held in place. The guide 43 is provided. The pocket 40 is formed as a space surrounded by the pocket wall 41 which protrudes from the bottom surface 49 of the tray body as shown in the figure. The cross-sectional size of the pocket 40 is largely formed to accommodate the battery pouches 17 of various sizes. A plurality of inserts 42 are formed at one side of the pocket wall 41, and the inserts 42 are inserted into the fixing part 45 attached to one side of the guide 43 to fix the guide 43. It plays a role. The insert 42 is shaped like a comb by cutting away a portion of the pocket wall 41 as shown in the figure.

The guide 43 serves to keep the battery pouch 17 stable in the pocket 40 by being in close contact with the side surface of the battery pouch 17 when the battery pouch 17 is inserted into the internal space of the pocket 40. do. A fixing part 45 is attached to the side of the guide 43, and a hole into which the insert 42 can be inserted is formed at the bottom of the ?? The guide 43 can thus be fixed in a suitable one of the plurality of inserts 42.

The guide 43 may be separately manufactured to correspond to the side shape of the battery pouch 17. For example, if the width W of the pocket 40 is wider than the thickness of the battery pouch 17, the battery pouch 17 will flow inside the pocket 40. In order to prevent this, a protrusion 43a is formed at one side of the guide 43. The protrusion 43a is to overcome the difference between the thickness of the battery pouch 17 and the width W of the pocket 40. The protrusion 43a is formed, so that the guide 43 has a side surface of the battery pouch 43. ) Can be stably supported and seated therein corresponding to the width W of the pocket 40.

The guide 43 may support both sides of the battery pouch 17. In the state where the guide 43 is in close contact with both sides of the battery pouch 17, the insert 42 of the pocket wall 42 is inserted into the bottom hole of the fixing part 45 attached to the guide 43. In other words, the guide 43 held fixed to the pocket wall 41 defines a space corresponding to the width direction of the battery pouch 17 in the internal space of the pocket 40. The battery pouch 17 having a width of various sizes may be stably held in the pocket 40 according to a position at which the guide 43 is fixed.

4 is an exploded perspective view illustrating the guide and the battery pouch described with reference to FIG. 3 in more detail.

Referring to the drawings, it can be seen that the side surfaces 48 corresponding to the side surfaces of the battery pouches 17 are formed on the inner surfaces of the pair of opposing guides 43, respectively. The protrusion 43a also extends from the side surface 48, thereby overcoming the difference between the thickness of the battery pouch 17 and the width W of the pocket 40, as described above.

5 is a perspective view showing another example of the guide.

As shown in the figure, the fixing portion 51 is integrally formed on the rear surface of the guide 43. The fixing portion 51 is in the form of tongs, and the holding space 52 is disposed between the guide 43. Is formed. By holding the pocket wall 41 inwardly of the gripping space 52, the guide 43 can be held fixed on one side of the pocket wall 41. The fixing part 51 can hold the guide 43 more stably by elasticity.

6 is a schematic perspective view of a part of the tray for battery charging and discharging, and FIG. 7 is a cross-sectional view of the tray for battery charging and discharging, showing a state in which a battery is inserted into pockets.

Referring to FIG. 6, it can be seen that the tray is formed by a plurality of pocket walls 41 protruding from the bottom surface 49 of the tray. The circumference of the tray is surrounded by the side wall 61. The bottom surface 49 of the tray is located at the middle of the entire height of the side wall 61 of the tray, so that a space is formed below the bottom surface 48. The upper end of the pocket wall 41 is preferably formed lower than the upper end surface of the side wall 61. In addition, when the battery pouch is inserted into the pocket 40, the side wall 61 preferably has a sufficient height so that the upper end of the battery pouch 17 is not higher than the upper end of the tray side wall 61.

Referring to FIG. 7, when the battery pouch 17 is inserted into the pocket 40, the battery pouch 17 remains in an inverted state, and only the tab 20 forms a hole formed in the bottom surface 49. It protrudes through the lower space 71 of a tray through. That is, a hole for the passage of the tab 20 is formed in the bottom surface 49 corresponding to the lower surface of the pocket 40. Thus, the battery pouch 17 itself remains stable in the space defined by the pocket wall 41 and the guides 43, while the tab 20 is at the bottom of the tray through a hole formed in the bottom 49. It can protrude into the space 71. By accessing the connection terminals (not shown) for battery charging and discharging to the lower space 71, a desired battery charging and discharging process may be performed.

8 is a plan view of a tray for battery charging and discharging, and a bottom view of a tray for battery charging and discharging is shown in FIG. 9.

Referring to FIG. 8, it can be seen that the plurality of pockets 40 are arranged in a straight line in the horizontal direction, and have a staggered arrangement with respect to adjacent pockets in the vertical direction. 9, it can be seen that holes 81 through which tabs pass are formed corresponding to pockets staggered with respect to adjacent pockets in the vertical direction.

8 and 9, a maximum number of pockets 40 may be arranged in one tray, and accessibility of the charge / discharge connecting terminal to the tab 20 may be ensured. That is, the length L of the pocket 40 should be as large as possible because it should be designed in consideration of the battery pouch of the maximum size. In addition, it is preferable that a maximum number of pockets are provided in one tray as much as possible. However, when the charge / discharge connection terminal is connected to the tab 20 of the battery pouch in the bottom space 71 of the tray, the neighboring tab 20 It is desirable to have a space between them. The arrangement of pockets as shown in Figures 8 and 9 fulfills these conflicting conditions.

Battery charging and discharging tray according to the present invention to accommodate a variety of battery pouch to perform a predetermined charge and discharge operation, there is an advantage that can maintain a stable battery pouch. In addition, it is very economical to maintain the battery pouch using a guide that can be manufactured at low cost, and do not have to produce a tray according to the size of the battery pouch. Moreover, there is an advantage in that a maximum number of pockets can be formed in the tray, and the operation of connecting the connection terminals to the tabs becomes easy.

Although the present invention has been described with reference to the embodiments shown in the accompanying drawings, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. . Therefore, the true scope of protection of the present invention should be defined only by the claims shown in the accompanying drawings.

Claims (5)

Bottom surface; A side wall surrounding a circumference of the bottom surface, the bottom surface being positioned at an intermediate portion thereof to form a lower space; A pocket wall protruding from the bottom surface to form a plurality of pockets into which the battery pouch is inserted, and an insert formed at one side thereof; And, And a guide attached to one side and fixed to the insert and inserted into the pocket to support the side surface of the battery pouch. The tray for battery charging and discharging is formed in the bottom surface corresponding to the pocket is a hole through which the tab of the battery pouch passes. The method of claim 1, The tray for battery charging and discharging, characterized in that a hole in which the insert can be inserted is formed in the bottom of the fixing part of the guide. The method of claim 1, The fixing part of the guide is a tray for battery charging and discharging, characterized in that for holding the insert in the form of tongs. The method of claim 1, A protrusion is formed at one side of the guide that contacts the side surface of the battery pouch, wherein the thickness of the protrusion corresponds to the difference between the thickness of the battery pouch and the width of the pocket. The method of claim 1, And the pockets are arranged in a line in the longitudinal direction thereof and staggered with respect to neighboring pockets in the width direction thereof.