KR102043762B1 - Battery cartridge - Google Patents

Abstract

The present invention relates to a battery cartridge capable of housing secondary battery cells and, more particularly, to a battery cartridge in which a single metal plate is integrally in contact with a plurality of battery cells to increase the service life of a battery to have a certain amount of use, a guide plate can maintain intervals while supporting battery cells according to a predetermined row and column, and a coupling member fastens the metal plate and the guide plate by bolts. In addition, the battery cartridge forms a metal and printed circuit on the guide plate to increase electrical conductivity and versatility and has a block member, which blocks the side surface of the battery cartridge, to increase the durability of the battery cartridge with respect to an external environment and the vibration of a device. Therefore, various problems, of an existing integrated plastic battery cartridge, including productivity can be solved.

Description

Battery cartridge {Battery cartridge}

The present invention relates to a battery cartridge, and more particularly, to form a cartridge in which a plurality of battery cells are protected and supported by a printed circuit board, thereby increasing convenience, productivity, and safety of the battery cartridge, and by uniformly bonding the integrated electrodes to the battery cells. A battery cartridge provides a service life.

A battery is a device that can store electric energy to supply electric devices such as smartphones and electric vehicles. A battery refers to one cell and one battery cell has a limit in power supply, so a plurality of battery cells are bundled and used as one battery module or battery pack. The plurality of battery cells are connected to electrodes made of a conductive metal such as nickel to supply power to the outside. Since the battery is composed of a plurality of battery cells, the battery cells are protected in various ways to prevent defects or breakage of each battery cell. As a method of protecting the battery through control, a printed circuit board such as a battery management system (BMS) is provided at one side of the battery module to control the current inside the battery to prevent overcurrent and short. When attaching the BMS circuit is attached to one side of the battery module requires a separate space. Therefore, a problem arises that the size and configuration of the battery module design is limited. In addition, the battery causes a decrease in performance and lifespan of the battery by direct contact between the battery cells and generated heat. Therefore, a method of physically protecting the battery solves the problem by spaced apart between battery cells through a cartridge surrounding the battery. Such a cartridge for separating the battery cells is disclosed in Korean Patent Registration No. 10-1016596 ("Cell cartridge composed of a cell interconnection network, 2011. 02. 15"). In the case of such a conventional cartridge, the material is often composed of an integral plastic. When producing a conventional plastic cartridge is produced by injection molding using a mold. In the case of electric devices such as smartphones and electric vehicles, the frequency of design changes is inevitable due to rapid technological development. Due to the characteristics of plastic cartridge production using molds, size and dimensions cannot be changed at will, and production costs are also high. In addition, when additional devices are combined with cartridges, additional processes such as manual work are required, resulting in limitations in production automation. Furthermore, conventional plastic battery cartridges are integrally injected by injection molding, and cartridges are limited due to dimensional tolerances between injection moldings. There may be play in the interior. When the battery module or the battery pack does not have a separate cooling device, heat discharged according to the use of the battery is stacked in the clearance space of the cartridge, thereby increasing the internal temperature of the battery cartridge, thereby reducing the battery life and electrical efficiency.

In addition, according to the arrangement of the battery cells, a metal electrode such as nickel attached to the battery is attached to each battery cell to connect the battery cells in series or in parallel. In this case, when some of the plurality of battery cells are defective, such as manufacturing defects, the energy consumption stored in each single battery cell may not be constantly consumed for each cell. Therefore, there is a problem that the unbalanced usage of each battery cell usage and the power supply of the electric device is not smooth, so that it has a non-uniform service life between battery cells, thereby reducing the life of the entire battery. Therefore, there is a need for a battery cartridge that can be easily produced while increasing the safety of a secondary battery battery cell and increasing its service life.

1. Korean Patent Registration No. 10-1016596 ("Cell Cartridge Composed of Cell Interconnection Network", 2011. 02. 15)

The present invention has been made to solve the above problems, an object of the present invention is to reduce the layout space of the control panel, such as BMS attached to the battery module or pack, to facilitate the separation between the battery cells and use the energy of the battery cells It is to provide a battery cartridge that can maintain the speed to increase the life expectancy of the battery and at the same time eliminate the problems of conventional plastic cartridge production, that is, injection molding cost and automation process and cartridge use problems.

In order to solve the above problems, the battery cartridge of the present invention comprises a plurality of secondary battery battery cells are formed in a positive column and a negative electrode in a vertical direction, arranged in a predetermined column and row; An upper housing including an upper guide plate having a plurality of perforations corresponding to the arrangement of the battery cells for the secondary battery, and an upper electrode plate in contact with an upper electrode of the battery cell and adjacent to the upper guide plate; And a lower housing including a lower guide plate having a plurality of perforations corresponding to the arrangement of the battery cell for the secondary battery, and a lower electrode plate contacting the lower electrode of the battery cell and adjacent to the lower guide plate. It includes, wherein the battery cell is a cylindrical secondary battery, the upper electrode plate and the lower electrode plate is composed of an integral plate-shaped electrode plate, the upper guide plate and the lower guide plate is FR1, FR2, FR4, FR5, CEM-3, CEM-5 or G10 is formed of a material, and the circuit of the battery management system printed circuit board printed with a printed circuit board to reduce the functional circuit space formed separately, the upper guide plate and the lower guide The perforated portion of the plate is perforated to a size corresponding to the diameter of the battery cell which is the cylindrical secondary battery, so that the top and bottom of the cylindrical battery cell are shoveled. The upper housing and the lower housing, the coupling of the upper guide plate and the upper electrode plate and the coupling of the lower guide plate and the lower electrode plate are bolted by the coupling means, the The coupling means is formed by bolt coupling by a fastening member of a male screw type conductive material and a female screw inserted into the upper guide plate and the lower guide plate, and the upper guide plate and the upper electrode plate, and the lower guide plate. The lower electrode plate is electrically connected, and an upper portion of the battery cell is inserted and supported by a perforation portion formed in the upper guide plate, and a lower portion of the battery cell is inserted and supported by a perforation portion formed in the lower guide plate, so as to separate The battery cell is coupled to and supported by the upper housing and the lower housing without a case, so that the upper electrode plate and the A negative electrode plate is integrally connected to the plurality of battery cells in parallel to increase battery efficiency and lifespan, and the upper housing and the lower housing are mechanically maintained so that a predetermined column and row gap is formed between the battery cells. Maintaining the connection is characterized by providing a structure that is advantageous for heat dissipation.

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In addition, the upper guide plate and the lower guide plate may be characterized in that gaps are formed at both ends.

In addition, the battery cartridge may further include a connection member which is connected at both ends to the upper housing or the lower housing, respectively, and fitted to the gap.

The battery cartridge of the present invention according to the above configuration can have a high space efficiency by printing a control circuit such as BMS on the guide plate constituting the cartridge does not require a separate PCB board space, a plurality of battery cells and one Electrodes are connected in parallel to provide a battery with a uniform service life. Unlike conventional plastic cartridges that require specialized equipment for injection molding using a mold, it can be produced in a desired size and shape through simple processing and low production cost. And there is an advantage to provide a cartridge that can be automated production.

1 is a perspective view of a battery cartridge of the present invention.
Figure 2 is an exploded perspective view of a battery cartridge of the present invention.
3 is a cross-sectional view of the battery cartridge of the present invention.
4 is a plan view of the upper guide plate and the lower guide plate of the present invention.
5 is a cross-sectional view of the upper guide plate and the lower guide plate of the present invention.
Figure 6 is a perspective view of the modified embodiment of the battery cartridge of the present invention.
7 is a perspective view of a modified embodiment of the battery cartridge of the present invention.

Hereinafter, the technical spirit of the present invention will be described in more detail with reference to the accompanying drawings.

The accompanying drawings are only examples to illustrate the technical idea of the present invention in more detail, and thus the technical idea of the present invention is not limited to the forms of the accompanying drawings.

Overall configuration of the battery cartridge using the PCB of the present invention

As shown in FIG. 1, the battery cartridge 1000 of the present invention may include an upper housing 100, a lower housing 200, and a coupling means 300. Each component of the battery cartridge 1000 will be described in detail as follows.

The upper housing 100 is in contact with the upper electrodes of the plurality of secondary battery cells 10 arranged in a predetermined row and row, and the upper portion of the battery cell 10 is inserted into the upper housing 100. Combined. The upper housing 100 may include an upper electrode plate 110 and an upper guide plate 120. In addition, the lower housing 200 is connected to the lower electrode of the battery cell 10 and the lower portion of the battery cell 10 is coupled in a form inserted into the lower housing 200. The lower housing 200 may include a lower electrode plate 210 and a lower guide plate 220, and each component of the upper housing 100 and the lower housing 200 may be described in detail in FIG. 2. I'll cover it in detail.

The coupling means 300 includes a fastening member 310 and a female screw 320. The coupling means 300 includes an upper electrode plate 110 and an upper guide plate 120, an upper lower electrode plate 210, and a lower guide plate, which are components of the upper housing 100 and the lower housing 200. 220 may serve to electrically connect the components of the upper housing 100 and the lower housing 200. The fastening member 310 may have a male screw shape made of a conductive material. The female screw 320 is inserted into the upper guide plate 110 and the lower guide plate 120 in the same line as the coupling position of the fastening member 310, the upper housing 100 and the lower housing 200. You can connect components of.

As shown in FIG. 2, the battery cartridge 1000 of the present invention includes an upper housing 100 and a lower housing 200, and components of the upper housing 100 and the lower housing 200 are fastening means. May be connected by 300. Detailed description of each component with reference to the combined perspective view of Figure 2 are as follows.

The upper electrode plate 110 and the lower electrode plate 210 are in contact with and coupled to the electrodes of the battery cell 10. The upper electrode plate 110 and the lower electrode plate 210 may be in contact with the plurality of battery cells 10 all at once to manage the amount of use of the battery cells 10 constantly. Therefore, the service life of the battery module or pack using the battery cartridge 1000 can be extended. In addition, the upper electrode plate 110 and the lower electrode plate 210 is preferably in a plate-like metal material of high conductivity, such as silver, copper, nickel. In addition, the upper electrode plate 110 and the lower electrode plate 220 may include the upper electrode plate 110 and the lower electrode plate 210 formed with a plating layer such as nickel to enhance corrosion resistance. In addition, it may have one or a plurality of through holes that may be provided with the fastening means (300).

The upper guide plate 120 and the lower guide plate 220 penetrate up and down to have a plurality of perforations 121 and 221 into which the battery cell 10 can be inserted, and to the upper guide plate 120. An upper portion of the battery cell 10 is inserted into the lower guide plate 220, and a lower portion of the battery cell 10 is inserted into the upper electrode plate 110 and the lower electrode plate 210. It is inserted through so that both electrodes of () can contact. The upper guide plate 120 and the lower guide plate 220 may be a printed circuit board (PCB). Therefore, by printing a circuit on the upper guide plate 120 and the lower guide plate 220 to print circuits such as BMS (Battery Management System Battery Management System) and the like to be formed separately on one side of the conventional battery cartridge Space can be reduced. In addition, the use of high-cost molds for general plastic molding has problems of simple design changes and size limitations, and requires additional processes or manual labor for production automation. The upper guide plate 120 and the lower guide plate 220 to compensate for the above problems because the upper guide plate 120 and the lower guide plate 220 is composed of a PCB substrate and the upper guide plate 120 and The lower guide plate 220 is preferably formed of any one of FR1, FR2, FR4, FR5, CEM-3, CEM-5 or G10. Perforations 121 and 221 formed on the upper guide plate 120 and the lower guide plate 220, gaps 122 and 222, and female threaded holes 123 and 223 are described in more detail in FIG. To deal with.

The coupling means 300 includes a fastening member 310 and a female screw 320. The fastening member 310 is formed in the form of a conductive male screw and bolts on the same line as the female screw hole 123 in which the female screw 320 is inserted into the upper electrode plate 110 and the upper guide plate 120. The upper electrode plate 110 and the upper guide plate 120 are connected to each other. In addition, the fastening member 310 may be bolted to the lower electrode plate 210 and the lower guide plate 220 in the same line as the female screw hole 223 in which the female screw 320 is inserted. 210 and the lower guide plate 220 are connected. The fastening member 310 may be made of a conductive material to electrically connect the upper electrode plate 110 and the upper guide plate 120 and the lower electrode plate 210 and the upper guide plate 220.

As shown in FIG. 3, the upper guide plate 120 and the lower guide plate 220 of the battery cartridge 1000 of the present invention may include the gaps 122 and 222 of the perforations 121 and 221, and the female threaded holes 123. 223). The components of the upper guide plate 120 and the lower guide plate 220 will be described in detail as follows.

The perforations 121 and 221 are formed on the upper guide plate 120 and the lower guide plate 220 at the positions corresponding to the predetermined columns and rows of battery cells 10. Is formed so that the battery cell 10 is inserted into and coupled to the perforations 121 and 221. Therefore, the shape of the perforations 121 and 221 may vary according to the shape and shape of the battery cell 10. In addition, the perforations 121 and 221 are not formed by injection molding using a mold, which is a conventional method for producing a plastic cartridge, and produces the upper guide plate 120 and the lower guide plate 220 by using a separate mechanism. It is preferable to form the perforations 121 and 221 by perforation or perforation during the process.

The gaps 122 and 222 are formed at both ends of the upper guide plate 120 and the lower guide plate 220 to connect the upper member 100 and the lower housing 200. ) Can be fitted. Therefore, in the detailed description of FIG. 5, the fitting of the connecting member 400 and the gaps 122 and 222 will be described in more detail.

The female screw holes 123 and 223 are positions at which the female screw 320 is inserted on the upper guide plate 120 and the lower guide plate 220. Therefore, it is preferable that the shape is changed according to the female screw 320. In addition, since it is coupled to the fastening means 310, it is preferable to be formed on the same line as the male screw of the fastening means 310.

4 illustrates a cross-sectional view of the upper guide plate 120 and the lower guide plate 220. As shown in FIG. 4, the metal layers 124 and 224 and the printed circuits 125 and 225 may be formed on the upper guide plate 120 and the lower guide plate 220. The metal layers 124 and 224 are formed around the female screw holes 123 and 223 to form conductive metal layers 124 and 224 such as copper to increase the conductivity of the electric energy transmitted from the coupling means 300. In addition, by printing the printed circuit (125, 225) on the upper guide plate 120 and the lower guide plate 220 can be configured without a separate function circuit for the battery cartridge 1000 of the present invention. In addition, the upper guide plate 120 and the lower guide plate 220, the upper metal plate 110 and the lower metal plate 210 may further have a conductive metal junction such as copper to increase the electrical conductivity.

As shown in FIG. 5, the battery cartridge 1000 of the present invention may have an embodiment including a connecting member 400 connecting the upper housing 100 and the lower housing 200. The connection member 400 is fitted with the gaps 122 and 222 formed in the upper guide plate 120 and the lower guide plate 220 to surround the upper housing 100 and the lower housing 200, and the battery. It may be formed in a form that blocks the side of the cartridge (1000). The connection member 400 may have various embodiments since the battery cartridge 1000 may be formed to block the side surface of the battery cartridge 1000 and to be fitted with the gaps 122 and 222.

As shown in FIG. 6, the first connection member 410 is formed to be long on one side of the battery cartridge 1000, and the second member 420 is coupled to the first connection member 410 on the other side of the battery cartridge 1000. It may have one embodiment. The surface not blocked by the connecting member 400 may solve heat generated by the use of the battery cartridge 1000 through an air cooling or air conditioning system between predetermined rows and rows of the battery cells 10. In addition, a stepped portion may be formed at ends of the upper guide plate 120 and the lower guide plate 220 to guide the connection member 400.

As the present invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not. At this time, if there is no other definition in the technical terms and scientific terms used, it has the meaning that is commonly understood by those of ordinary skill in the art to which this invention belongs, and the gist of the present invention is unnecessary in the following description and the accompanying drawings. Descriptions of well-known functions and configurations that may be blurred are omitted.

The present invention is not limited to the above-described embodiment, and the scope of application is not limited, as well as various modifications can be made without departing from the gist of the present invention as claimed in the claims.

1000: Battery Cartridge
100: upper housing 110: upper electrode plate
120: upper guide plate 121: perforation
122: clearance part 123: female threaded hole
124, 224 metal layer 125, 225 printed circuit
200: lower housing 210: lower electrode plate
220: lower guide plate 221: punched part
222: clearance 223: female threaded hole
300: coupling means 310: fastening member
320: female thread 400: connecting member
410: first connecting member 420: second connecting member
10: battery cell

Claims (8)

A plurality of secondary battery cells formed with positive and negative electrodes formed in a vertical direction and arranged in predetermined columns and rows;
An upper housing including an upper guide plate having a plurality of perforations corresponding to the arrangement of the battery cells for the secondary battery, and an upper electrode plate in contact with an upper electrode of the battery cell and adjacent to the upper guide plate; And
A lower housing including a lower guide plate having a plurality of perforations corresponding to the arrangement of the battery cells for the secondary battery and a lower electrode plate contacting the lower electrode of the battery cell and adjacent to the lower guide plate; Including,
The battery cell is a cylindrical secondary battery,
The upper electrode plate and the lower electrode plate is composed of an integral plate-shaped electrode plate,
The upper guide plate and the lower guide plate is formed of any one material of FR1, FR2, FR4, FR5, CEM-3, CEM-5, or G10, and the circuit of the battery management system to reduce the space of the functional circuit unit formed separately Consists of a printed circuit board,
The perforations of the upper guide plate and the lower guide plate are perforated to a size corresponding to the diameter of the battery cell which is the cylindrical secondary battery, and configured to support the upper and lower portions of the cylindrical battery cell.
The upper housing and the lower housing,
The coupling of the upper guide plate and the upper electrode plate and the coupling of the lower guide plate and the lower electrode plate are bolted by the coupling means,
The coupling means is formed by bolt coupling by a fastening member of a male screw type conductive material and a female screw inserted into the upper guide plate and the lower guide plate, and the upper guide plate and the upper electrode plate, and the lower guide plate. And the lower electrode plate are electrically connected to each other,
An upper portion of the battery cell is inserted and supported by a perforation portion formed in the upper guide plate, and a lower portion of the battery cell is inserted and supported by a perforation portion formed in the lower guide plate, so that the battery cell is not attached to the upper housing and the lower housing. Coupled to the housing,
The upper electrode plate and the lower electrode plate is integrally connected with the plurality of battery cells in parallel to effect the increase in battery efficiency and lifespan,
And the upper housing and the lower housing maintain a mechanical connection such that a predetermined row and row spacing is formed between the battery cells to maintain an advantageous structure for heat dissipation.
delete delete delete delete The method of claim 1, wherein the upper guide plate and the lower guide plate,
Battery cartridge, characterized in that the gap is formed at both ends.
The method of claim 6, wherein the battery cartridge,
A battery cartridge, characterized in that the both ends further comprises a connecting member connecting the upper housing or the lower housing, respectively, and fitted to the gap.
The method of claim 1, wherein the perforation portion,
Battery cartridge, characterized in that formed by perforation using a separate mechanism.

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