TWI413321B - Energy storage device - Google Patents

Abstract

An energy storage device includes a frame, a plurality of energy storage elements stacked in the frame, at least a clip, and a plurality of blocks. The frame forms a plurality of ribs, and each energy storage element has two conductive portions on opposite sides thereof. The conductive portions of the adjacent energy storage elements are clipped and electrically connected to each other by the clip. The blocks are detachably disposed between the ribs to restrict the energy storage elements in the frame.

Description

Energy storage device

The invention relates to an energy storage device, in particular to an energy storage device which can be easily disassembled and connected.

A general energy storage device (such as a battery or a super capacitor) is usually provided with a plurality of energy storage components stacked on each other, and the energy storage components are mostly connected by soldering to achieve the serial/parallel electrical property. Most of the common conventional welding methods use resistance welding or metal ultrasonic welding, but they are often limited by many conditions during welding, and are easily affected by the material, shape and size constraints of the components, which will inevitably increase the difficulty of the process.

On the other hand, since the energy storage element is not easily replaced after soldering, when the energy storage element has flaws, it will cause it to fail to perform its intended function and cause the product to fail. In view of this, how to design an energy storage device that is easy to assemble and connect and can easily replace parts has become an important issue.

An embodiment of the present invention provides an energy storage device including a frame, a plurality of energy storage elements, at least one elastic piece, and a plurality of blocks. The foregoing frame is formed with a plurality of ribs, and the energy storage elements are disposed inside the frame and stacked on each other, wherein each energy storage element has two conductive portions, and the conductive portions are respectively located on opposite sides of the energy storage element. The elastic piece is used for clamping the conductive portion corresponding to the adjacent energy storage element, so that the energy storage element can be connected in series in a zigzag structure and electrically connected to each other. The aforementioned stopper is detachably disposed between the aforementioned ribs to limit the energy storage element within the frame.
In an embodiment, the energy storage device further includes a plurality of elastic pieces for clamping the conductive portion of the energy storage component.
In an embodiment, the ribs are respectively disposed on opposite sides of the frame and are substantially parallel to the energy storage element.
In one embodiment, the energy storage element has a plate-like structure, and the conductive portions are respectively located on opposite sides of the plate-like structure.
In one embodiment, the stopper has a body and two protrusions, and the protrusions are respectively located on opposite sides of the body and are engaged between adjacent ribs.
In an embodiment, the thickness of the protruding portion is smaller than the thickness of the body.
In an embodiment, the body has at least one card slot, and the elastic piece is fixed in the card slot.
In an embodiment, the conductive portion is a metal piece.
In one embodiment, the shrapnel has a "ㄇ" shape structure.
In an embodiment, the energy storage device is a battery or a super capacitor.
The above described objects, features, and advantages of the invention will be apparent from the description and appended claims

First, please refer to FIGS. 1A to 1C, wherein FIG. 1B is a cross-sectional view taken along line X1-X2 in FIG. 1A, and FIG. 1C is an enlarged view of a portion A in FIG. 1B. As shown in FIG. 1A to FIG. 1C , an energy storage device 100 according to an embodiment of the present invention is, for example, a battery or a super capacitor, which mainly includes a frame 10 , a plurality of blocks 20 , at least one elastic piece 30 , and a plurality of The energy storage elements P are, for example, hard-packed batteries, supercapacitors or similar energy storage elements. A plurality of ribs 11 are formed on both sides of the frame 10, and the ribs 11 are formed on opposite sides of the frame 10 in this embodiment. The energy storage elements P are disposed inside the frame 10 in a stacked manner (as shown in FIG. 1B), wherein each of the energy storage elements P is provided with a conductive portion P1 at each end thereof, and the conductive portion P1 is, for example, a metal piece.

It should be particularly noted that the energy storage element P in this embodiment has a plate-like structure and is disposed substantially parallel to the ribs 11 on both sides of the frame 10. The conductive portion P1 is respectively formed by the plate shape of the energy storage element P. The two ends of the structure extend toward the outside, wherein the elastic piece 30 is, for example, a "ㄇ" shape, and the elastic piece 30 can be mainly used to clamp the conductive portion P1 of the adjacent energy storage element P (as shown in FIG. 1C), thereby enabling energy storage. The elements P are connected in series in a zigzag structure and electrically connected to each other. That is, as shown in FIG. 1B and FIG. 1C, a plurality of energy storage elements P are connected end to end, and are folded back and forth by a plurality of conductive portions P1. After the energy storage element P and the elastic piece 30 are assembled, the aforementioned stopper 20 can be inserted into the gap between the ribs 11 to restrict the energy storage element P to the inside of the frame 10.

Please refer to FIG. 2, which is a schematic view of a baffle according to an embodiment of the present invention. The stopper 20 in this embodiment mainly includes a body 21 and two protrusions 22, and the body 21 is formed with a card slot 23, the position of the card slot 23 corresponds to the elastic piece 30, and the protrusion 22 is composed of the body. The two sides of the 21 are outwardly protruded. In the embodiment, the protrusions 22 are formed on opposite sides of the stopper 20. The protrusion 22 has a thickness smaller than the thickness of the body 21, and the protrusion 22 can be correspondingly engaged between the adjacent ribs 11 during assembly, and the elastic piece 30 can be fixed in the slot 23 to prevent falling off. When the parts inside the frame 10 are to be repaired or replaced (for example, the shrapnel 30 or the energy storage element P is replaced), the corresponding individual stops 20 can be withdrawn to facilitate the replacement operation without destroying the entire set of energy storage devices. Dismantling.

Please refer to FIG. 3 and FIG. 4 respectively, which are schematic diagrams of the elastic piece according to an embodiment of the present invention; and a schematic diagram of clamping the adjacent energy storage elements by using the elastic piece. The elastic piece 30 has a "ㄇ"-shaped structure (as shown in FIG. 3), wherein the conductive portion P1 located on the same side of the adjacent energy storage element P can be clamped by one or several elastic pieces 30 (as shown in FIG. 4). As shown, the adjacent conductive portions P1 can be electrically connected to each other. In addition, as shown in FIG. 1B, the energy storage portion P1 is disposed at both ends of the energy storage device P of the embodiment, wherein the elastic portion P1 can clamp the conductive portion P1 corresponding to the adjacent energy storage device P, and at the same time The energy storage elements P are connected in series in a zigzag manner and electrically connected to each other.

In summary, the present invention provides an energy storage device in which the conductive portions of adjacent energy storage elements are tightly coupled by the elastic clamping force of the elastic pieces, thereby achieving the purpose of electrical series connection. The invention has the advantages of easy assembly and convenient replacement of parts. In addition, when it is necessary to replace the shrapnel or the energy storage component inside the frame, it is only necessary to remove the stopper, so it is particularly suitable for use in a battery or a super capacitor device. Moreover, the series connection between the energy storage elements is also more convenient and more flexible in use.

Although the present invention has been disclosed above in the foregoing embodiments, it is not intended to limit the invention. Those skilled in the art having the ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

10‧‧‧Frame

11‧‧‧ rib

20‧‧ ‧block

21‧‧‧ body

22‧‧‧Protruding

23‧‧‧ card slot

30‧‧‧Shrap

100‧‧‧ energy storage device

P‧‧‧ energy storage components

P1‧‧‧Electrical Department

1A is a schematic view showing an energy storage device according to an embodiment of the present invention;

Figure 1B is a cross-sectional view taken along line X1-X2 in Figure 1A;

Figure 1C is an enlarged view of a portion A in Figure 1B;

Figure 2 is a schematic view showing a baffle according to an embodiment of the present invention;

Figure 3 is a schematic view showing a shrapnel according to an embodiment of the present invention;

Figure 4 is a schematic view showing the use of a shrapnel to hold adjacent energy storage elements.

10‧‧‧Frame

11‧‧‧ rib

20‧‧ ‧block

30‧‧‧Shrap

P‧‧‧ energy storage components

P1‧‧‧Electrical Department

Claims (10)

An energy storage device comprising:
a frame formed with a plurality of ribs;
a plurality of energy storage elements disposed inside the frame and stacked on each other, wherein each of the energy storage elements has two conductive portions, and the conductive portions are respectively formed on opposite sides of the energy storage device;
At least one elastic piece for holding the conductive portions corresponding to the adjacent energy storage elements, so that the clamped energy storage elements are electrically connected to each other; and a plurality of stoppers are detachably arranged Between the ribs to limit the energy storage elements within the frame. The energy storage device of claim 1, wherein the energy storage device further comprises a plurality of elastic pieces for clamping the conductive portions of the energy storage components, such that the energy storage components are in a zigzag shape. The structures are connected in series and electrically connected to each other. The energy storage device of claim 1, wherein the ribs are respectively formed on opposite sides of the frame and are substantially parallel to the energy storage elements. The energy storage device of claim 1, wherein the energy storage element has a plate-like structure, and the conductive portions are respectively located on opposite sides of the plate-like structure. The energy storage device of claim 1, wherein the stopper has a body and two protrusions, the protrusions are respectively located on opposite sides of the body, and are engaged with the adjacent ones. Between the ribs. The energy storage device of claim 5, wherein the thickness of the protrusions is less than the thickness of the body. The energy storage device of claim 5, wherein the body has at least one card slot, and the elastic piece is fixed in the card slot. The energy storage device of claim 1, wherein the conductive portion is a metal piece. The energy storage device of claim 1, wherein the elastic piece has a "ㄇ" shape structure. The energy storage device of claim 1, wherein the energy storage component is a battery or a super capacitor.