KR101808307B1 - Terminal cover and battery module including the same - Google Patents

Abstract

Disclosed herein is a terminal cover having improved compatibility that can be applied even if the standard of a terminal cable connected to an electrode terminal is changed, and a battery pack including the terminal cover.
A terminal cover according to the present invention is a terminal cover for covering an electrode terminal of a battery pack. The terminal cover has an internal space for accommodating the electrode terminal, and a terminal insertion portion is formed at a lower end of the terminal cover so that the electrode terminal can be inserted into the internal space. A cover body having at least one side surface formed with a cable passage portion through which a terminal cable connected to the electrode terminal can pass; And a cover cap which is connected to one side surface of the cover body formed with the cable passage portion and covers at least a part of the cable passage portion and is rotatable about the cover body at a predetermined angle.

Description

[0001] The present invention relates to a terminal cover and a battery pack including the terminal cover,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal cover for protecting an electrode terminal of a battery pack, and more particularly, to a terminal cover having improved compatibility for applying various terminal cables and a battery pack including the same.

2. Description of the Related Art In recent years, demand for portable electronic products such as notebook computers, video cameras, and portable telephones has rapidly increased, and electric vehicles, storage batteries for energy storage, robots, and satellites have been developed in earnest. Are being studied actively.

The secondary rechargeable batteries are nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel- It is very popular because of its low self-discharge rate and high energy density.

These lithium secondary batteries mainly use a lithium-based oxide and a carbonaceous material as a cathode active material and an anode active material, respectively. The lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate each coated with such a positive electrode active material and a negative electrode active material are disposed with a separator interposed therebetween, and an outer casing, that is, a battery case, for sealingly storing the electrode assembly together with the electrolyte solution.

Generally, a lithium secondary battery can be classified into a can type secondary battery in which an electrode assembly is embedded in a metal can, and a pouch type secondary battery in which an electrode assembly is embedded in a pouch of an aluminum laminate sheet, depending on the shape of the casing.

In recent years, secondary batteries have been widely used not only in small-sized devices such as portable electronic devices but also in medium- and large-sized devices such as automobiles and energy storage systems (ESS). Particularly, as carbon energy is getting depleted and the interest in the environment is increasing, attention is focused on electric vehicles and electric power storage systems worldwide, including the United States, Europe, Japan, and Korea. The most critical component in such electric vehicles and power storage systems is a battery pack that supplies power.

The battery pack of the electric vehicle or the electric power storage system includes a plurality of secondary batteries, and the plurality of secondary batteries are connected in series and in parallel to each other to improve capacity and output. The battery pack includes a cell assembly having a plurality of secondary cells stacked, and a pack housing housing the cell assembly in an inner space. In order to use such a battery pack, the battery pack and the external device must be electrically connected through a connecting member such as a connecting wire or a bus bar. To this connection, an electrode terminal may be provided in the battery pack . In particular, in many cases, the electrode terminal is formed in an exposed shape protruding outward from the pack housing in order to facilitate the connection with the connecting member. Therefore, the connecting member is connected to the electrode terminal at one end, and the other end is connected to the external device, such as the motor of the electric vehicle, while being extended from one end through a cable or the like, thereby supplying driving power from the battery pack to the external device .

However, according to such a battery pack configuration, various problems may occur because the electrode terminals can be exposed to the outside. For example, when the electrode terminal is exposed to the outside, a conductive object such as a bolt, metal debris, or electric wire may contact the electrode terminal. In this case, a short circuit may occur. Such contact of a conductive object may cause a fire due to spark or the like as well as damage to the battery pack or the electric system. Accordingly, attempts have been made to reduce or eliminate the exposure of the electrode terminal in order to overcome such a problem. Among them, a typical example is to cover the outside of the electrode terminal through the terminal cover.

However, in such a configuration, there is an advantage in that safety is improved by reducing the exposure of the electrode terminal due to the terminal cover, but a new problem that the battery pack can not be applied to various devices may arise. For example, an external device to which a battery pack is applied requires power of various sizes for each external device. At this time, the size of the cable for supplying electric power varies depending on the size of electric power required by the external device. The conventional terminal cover which is conventionally used is designed to be applicable only to a predetermined cable thickness. Therefore, there is an inconvenience that the terminal cover must be changed or replaced whenever the external device applied to the battery pack is changed or replaced. Therefore, according to the related art, there is a problem that the compatibility of the battery pack is deteriorated depending on the apparatus to which the battery pack is applied.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal cover having improved compatibility and a battery pack including the same, even if the terminal cable connected to the electrode terminal is different in size.

Other objects and advantages of the present invention will become apparent from the following description, and it will be understood by those skilled in the art that the present invention is not limited thereto. It is also to be understood that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations thereof.

According to an aspect of the present invention, there is provided a terminal cover for covering an electrode terminal of a battery pack, the terminal cover having an internal space for accommodating the electrode terminal, A cover main body having a cable passing portion through which a terminal cable connected to the electrode terminal can pass; And a cover cap which is connected to one side surface of the cover body formed with the cable passage portion and covers at least a part of the cable passage portion and is rotatable about the cover body at a predetermined angle.

The cover cap may be formed with a cable passage groove through which the terminal cable can pass.

The width of the cable passing portion may be wider than the width of the cable passing groove.

Two cable passing portions are formed on both sides of the cover body, and two cover caps may be provided to cover the two cable passing portions one by one.

The terminal cover may be made of an insulating material.

The terminal cover may be integrally formed by injection molding.

The terminal cover may further include an elastic member connecting the cover body and the cover cap.

The cover body may further include an engaging portion that engages with the battery pack having the electrode terminal.

The engaging portion may include at least one bar-shaped engaging projection formed from the cover body.

At least one of the engaging projections may be provided with a cylindrical press-fitting bar extending from the engaging projection and having a length longer than the engaging projection.

According to an aspect of the present invention, a battery pack includes the terminal cover.

According to the present invention, since the cover cap can rotate at a predetermined angle with respect to the cover body, it is not necessary to replace the terminal cover even if the size of the terminal cable is changed.

According to an aspect of the present invention, since the cable passage groove of the cover cap is formed in a size suitable for the size of the terminal cable used, it is possible to provide a terminal cover optimized for the standard of the terminal cable used.

According to another aspect of the present invention, it is possible to prevent the cover cap from flowing unnecessarily by the elastic member connecting the cover body and the cover cap.

The above and other effects of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It is also to be understood that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations thereof.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further augment the technical spirit of the invention. And should not be construed as limiting.
1 is an exploded perspective view of a battery pack according to an embodiment of the present invention.
Fig. 2 is a view showing a state in which the cover cap is removed from the terminal cover of Fig. 1. Fig.
Fig. 3 is a view of the terminal cover of Fig. 1 seen from the right, showing the operation in which the cover cap rotates around the cover body at a predetermined angle. Fig.
4 is a front view and a rear view of a terminal cover according to an embodiment of the present invention.
5 is a view showing an example of a state before a terminal cover according to an embodiment of the present invention covers an electrode terminal of a battery pack.
6 is a view showing an example of a state after the terminal cover covers the electrode terminal of the battery pack in Fig.
7 is a view showing another example of a state before the terminal cover according to the embodiment of the present invention covers the electrode terminal of the battery pack.
8 is a view showing another example of a state after the terminal cover covers the electrode terminals of the battery pack in Fig.
9 is a view showing another example of a state before the terminal cover covers the electrode terminal of the battery pack according to the embodiment of the present invention.
10 is a view showing another example of a state after the terminal cover covers the electrode terminals of the battery pack in Fig.
11 is a partial perspective view of a terminal cover and a battery pack according to an embodiment of the present invention.
Fig. 12 is a view of the terminal cover of Fig. 11 (a) viewed from the front direction. Fig.
FIG. 13 is a view showing an operational configuration of a terminal cover according to another embodiment of the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be construed as meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The embodiments of the present invention are provided to explain the present invention more fully to the ordinary artisan, so that the shape and size of the components in the drawings may be exaggerated, omitted or schematically shown for clarity. Thus, the size or ratio of each component does not entirely reflect the actual size or ratio.

1 is an exploded perspective view of a battery pack according to an embodiment of the present invention.

Referring to FIG. 1, a battery pack according to an embodiment of the present invention includes a cell assembly, a pack housing 100, an electrode terminal 200, and a terminal cover 300.

The cell assembly includes at least one secondary battery. Preferably, the cell assembly may be an aggregate of secondary cells having a plurality of secondary cells, and the plurality of secondary cells may be stacked in one direction, for example, in a vertical direction.

The secondary battery included in the cell assembly may be a pouch type secondary battery. The cell assembly may include a stacking frame for stacking the pouch type secondary battery. Such a frame for laminating is a component used for laminating secondary batteries, which can hold the secondary batteries to prevent the secondary batteries from flowing, and can stack mutually, thereby guiding the assembling of the secondary batteries. Such a lamination frame may be replaced with various other terms such as a cartridge, and may be configured in the form of a rectangular ring with an empty central portion. In this case, the four corners of the stacking frame can be respectively located on the outer peripheral portion of the pouch type secondary battery.

Meanwhile, the cell assembly is housed in a pack housing 100 to be described later, so it is not shown in the drawing.

The pack housing 100 has a hollow space formed therein, and the cell assembly can be housed in the inner space. Since the pack housing 100 can serve as a casing for the battery pack, the pack housing 100 can provide structural stability to the battery pack, and can be housed in a cell assembly, such as a cell assembly, from other external physical factors such as an impact, And protects those components.

In addition, the pack housing 100 can accommodate various electrical components in addition to the cell assembly in the internal space. For example, a BMS, a current sensor, a relay, a fuse, and the like may be further housed in the inner space of the pack housing 100.

The electrode terminal 200 is connected to the cell assembly, and provides a terminal for electrically connecting the cell assembly and the external device. More specifically, the electrode terminal 200 may be directly or indirectly connected to the electrode lead of the secondary battery included in the cell assembly. For example, the electrode terminal 200 may be electrically connected to the electrode lead of the secondary battery through a bus bar.

The electrode terminal 200 may protrude outward from the pack housing 100 while being connected to the cell assembly. A hole may be formed in the pack housing 100 so that the electrode terminal 200 may be exposed to the outside and the electrode terminal 200 may penetrate the hole of the pack housing 100, As shown in FIG.

The electrode terminal 200 may be provided in two battery packs. At this time, one electrode terminal 200 can function as a positive terminal and the other electrode terminal 200 can function as a negative terminal. That is, the electrode terminal 200 may include a positive terminal and a negative terminal. In this case, the positive terminal is connected to the positive electrode lead of the secondary battery included in the cell assembly, and the negative terminal is connected to the secondary battery included in the cell assembly. To the negative terminal of the second switch.

The electrode terminal 200 may be electrically connected to an external device or the like through a terminal cable L. [ At this time, the electrode terminal 200 is physically connected to the terminal cable L. 5 to 10 and the like, the electrode terminal 200 is inserted into the connection groove of the terminal cable L and then is inserted into the nut 210 along the thread formed on the outer peripheral portion of the electrode terminal 200. [ So that it can be firmly coupled to the terminal cable L. However, this connection configuration of the electrode terminal 200 and the terminal cable L is one example, and the present invention is not limited to such an embodiment.

The terminal cover 300 can cover the electrode terminal 200 of the battery pack. The terminal cover 300 covers not only the electrode terminal 200 but also a part of the terminal cable L when the terminal cable L is connected to the electrode terminal 200 of the battery pack. A portion of the terminal cable L covered by the terminal cover 300 may be a portion where the terminal cable L and the electrode terminal 200 are connected.

Thus, the terminal cover 300 covers the connection between the electrode terminal 200 and the electrode terminal 200 and the terminal cable L, thereby preventing a problem caused by the exposure of the electrode terminal 200, 200, so that internal short-circuit, spark, fire, and the like can be effectively prevented.

Preferably, the terminal cover 300 may be included in the battery pack more than two. The battery pack may include a positive electrode terminal and a negative electrode terminal and two electrode terminals 200 as electrode terminals 200. In this case, two terminal covers 300 are also included to cover the positive and negative terminals Lt; / RTI >

Fig. 2 is a view showing a state in which the cover cap is removed from the terminal cover of Fig. 1. Fig.

Referring to FIGS. 1 and 2, a terminal cover 300 according to an embodiment of the present invention includes a cover body 310 and a cover cap 320.

A space may be formed in the cover body 310 to accommodate the electrode terminal 200 therein. In addition, not only the electrode terminal 200 can be accommodated in the inner space, but a part of the terminal cable L connected to the electrode terminal 200 may be accommodated.

A terminal insertion portion 311 may be formed at the lower end of the cover body 310. The terminal insertion portion 311 allows the electrode terminal 200 to be inserted into the inner space of the cover body 310. Referring to FIGS. 1 and 2, the rear surface of the terminal cover 300 shown in FIGS. 1 and 2 corresponds to the lower end of the cover body 310. 1, when the terminal cover 300 is coupled to the pack housing 100 along arrow B, the electrode terminal 200 is inserted into the inner space of the cover body 310 through the terminal insertion portion 311 .

A cable passing portion 312 may be formed on at least one side of the cover body 310. The cable passing portion 312 may provide a passage for allowing the terminal cable L connected to the electrode terminal 200 to pass therethrough. In other words, the terminal cable L can extend to the outside of the terminal cover 300 through the cable passing portion 312.

Referring to FIG. 2, the cover cap 320 is removed from the terminal cover 300. That is, in FIG. 2, the cover cap 320 is removed and the cable passing portion 312 is exposed to the outside. In FIG. 2, the cable passing portion 312 has a shape recessed along the lead-in direction of the electrode terminal 200.

At this time, when the terminal cover 300 is connected to the pack housing 100, the terminal cable L is extended to the outside through the cable passing portion 312 .

The cover cap 320 may be configured to cover at least a part of the cable passing portion 312. That is, the cover cap 320 may be connected to one side of the cover body 310 where the cable passing portion 312 is formed to cover at least a part of the cable passing portion 312. 1, the cover cap 320 is connected to one side of a cover body 310 formed with a cable passing portion 312. The cover cap 320 is connected to a cable passing portion 312 312, respectively.

In addition, the cover cap 320 is configured to be rotatable by a predetermined angle about the cover body 310 described above. Referring to FIG. 1, a connection part 330 is provided between the cover body 310 and the cover cap 320. The connection part 330 may be formed in a manner such that the cover cap 320 covers the cover body 310 at a predetermined angle So that it can rotate. The rotation operation of the cover cap 320 will be described with reference to FIG.

Fig. 3 is a view of the terminal cover of Fig. 1 seen from the right, showing the operation in which the cover cap rotates around the cover body at a predetermined angle. Fig.

3, one cover cap 320 is connected to the left side surface of the cover body 310 with respect to the cover body 310, and one cover cap 320 is connected to the right side surface of the cover body 310 . The cover cap 320 connected to the right side surface of the cover body 310 is rotated around the cover body 310 by a predetermined angle. The cover cap 320 is configured to be rotatable about the cover body 310 by a predetermined angle so that the terminal cable L can be extended to the outside through the cable passing portion 312 of the cover body 310 You can naturally take the shape of the upward direction.

Preferably, the cover cap 320 is formed with a cable passage groove 321 through which the terminal cable L can pass. The cable passing groove 321 is formed in the cover cap 320 and is formed in parallel with the cable passing portion 312 formed in the cover body 310 to provide a passage through which the terminal cable L can pass can do. At this time, it is preferable that the width of the cable passage groove 321 is configured to be sufficiently smaller than the width of the cable passage portion 312 so that the terminal cable L can be sufficiently covered. It is preferable that the width of the cable passage groove 321 has a width corresponding to the sectional area of the terminal cable L which is mainly used for the battery pack to which the terminal cover 300 is applied. Thus, the terminal cable L which is mainly used can extend outward through the cable passage groove 321.

Referring again to FIG. 3, the cable passage groove 321 formed in the cover cap 320 is formed in parallel with the cable passage portion 312 formed in the cover body 310, as shown in FIG. The terminal cable L connected to the electrode terminal 200 can be sequentially extended to the outside through the cable passing portion 312 and the cable passing groove 321 in order. 2 and 3, the width of the cable passing portion 312 is wider than the width of the cable passing groove 321. Further, In other words, the width of the cable passage groove 321 formed in the cover cap 320 is sufficiently small so that the cover cap 320 covers the cable passage portion 312 and can be guided through the cable passage portion 312 Contact with the electrode terminal 200 can be effectively prevented.

The cable passing groove 312 formed in the cover cap 320 according to an embodiment of the present invention is similar to the cable passing portion 312 formed in the cover body 310, It has the form of indentation. Therefore, even if the size of the terminal cable L is larger than the size of the cable passage groove 312, the cover cap 320 is lifted upwards so that the terminal cable L can pass under the cable passage groove 312 . This operation is shown in Figs. 5 to 10 and the like and will be described later.

Also, preferably, two cable passing portions 312 may be formed on both sides of the cover body 310. The cover cap 320 may be connected to both sides of the cover body 310 so as to cover the respective cable passing portions 312 corresponding to the cable passing portions 312. 1, the cover cap 320 includes a cable passing portion 312 formed on one side of the cover body 310 and one on each side of the cover body 310, . As described above, by providing at least one cable passing portion 312 and a cover cap 320, the passages through which the terminal cable L can extend to the outside can be variously configured.

At this time, the cover cap 320 may be formed with a cable passage groove 321 through which the terminal cable L can pass, as described above. In the cover cap 320, It is preferable that the widths of the first electrode 321 are different from each other.

4 is a front view and a rear view of a terminal cover according to an embodiment of the present invention. That is, FIG. 4A is a top view of the terminal cover shown in FIG. 1, and FIG. 4B is a bottom view of the terminal cover shown in FIG.

4, a relatively small cable passage groove 321 is formed in the cover cap 320 provided at one side of the terminal cover 300 (see FIG. 4A), and the terminal cover 300 A cable passing groove 321 of a relatively large size is formed in the cover cap 320 provided on the other side of the cover (see FIG. 4 (b)). The size of the cable passage groove 321 is preferably formed to correspond to the size of the terminal cable L which is mainly used as described above. Thus, by varying the size of the cable passage groove 321, the cover cap 320 can be used in a state where the cover cap 320 can not be heard with respect to at least two types of terminal cables L. That is, according to this configuration, it is possible to provide an optimized cover effect for at least two kinds of terminal cables. As a result, contact with the electrode terminal 200, which may be caused through the cable passing portion 312, can be effectively prevented.

Hereinafter, the covering operation of the terminal cover 300 according to the difference in the standard of the terminal cable L will be described with reference to the drawings. The terminal cover 300 used in the following description has two cover caps 320. Cable cover recesses 321 of different sizes are formed in the two cover caps 320. [

2) when the size of the terminal cable is smaller than the size of any one of the two cable passage grooves; and 3) when the size of the terminal cable is smaller than that of the two cable passage grooves, The covering operation of the terminal cover 300 in three cases in which the size of the terminal cable is larger than the size of the two cable passage grooves will be described.

<When the size of the terminal cable is smaller than the size of the two cable passing grooves>

5 is a view showing an example of a state before the terminal cover covers the electrode terminal of the battery pack according to the embodiment of the present invention. FIG. 2 is a view showing an example of a state after the operation of FIG.

5 and 6, the size of the cable passage groove 321a (hereinafter referred to as the first cable passage groove) formed in the cover cap 320a (hereinafter referred to as the first cover cap) provided on one side of the terminal cover 300 Is smaller than the size of the cable passage groove 321b (hereinafter referred to as the second cable passage groove) formed in the cover cap 320b (hereinafter referred to as the second cover cap) provided on the other side surface of the terminal cover 300 1 size of cable passage groove < size of second cable passage groove).

The size of the terminal cable L is smaller than the size of the second cable passage groove 321b and smaller than the size of the first cable passage groove 321a The size of the groove <the size of the second cable passage groove). In this case, the terminal cable L may extend outward through the first cable passage groove 321a and the second cable passage groove 321b. At this time, the first cover cap 320a and the second cover cap 321b And the second spring 320b may not be rotated by a predetermined angle. 6, not only the terminal cable L extends to the outside in the direction of the first cover cap 320a (see the terminal cable shown by the solid line), but also the terminal cable L The terminal cable L is inserted into the cable passing grooves 321a and 321b formed in the respective cover caps 320a and 320b when the terminal cable extends outward in the direction of the cover cap 320b Lt; / RTI &gt;

&Lt; Case in which the size of the terminal cable is smaller than the size of the through-hole of one of the two cable-

7 is a view showing another example of the state before the terminal cover covers the electrode terminal of the battery pack according to the embodiment of the present invention. Fig. 5 is a view showing another example of the appearance after the step of Fig.

7 and 8, the size of the first cable passage groove 321a is smaller than that of the second cable passage groove 321b. This is the same as the embodiment shown in Figs. 7 and 8. However, in terms of the size of the terminal cable L, the embodiment shown in Figs. 7 and 8 is different from the embodiment shown in Figs. 5 and 6.

That is, the size of the terminal cable L is smaller than the size of the second cable passage groove 321b, but larger than the size of the first cable passage groove 321a (i.e., the size of the first cable passage groove &&Lt; Size of the second cable passage groove). In this case, although the terminal cable L can extend to the outside through the first cable passage groove 321a, the first cover cap 320a can not maintain the closed state, State. That is, as shown in Fig. 8, the first cover cap 320a comes into contact with the terminal cable L and comes to the top (see the terminal cable shown by the solid line). Alternatively, the second cover cap 320b can be kept closed when the terminal cable L is extended to the outside through another path, that is, through the second cable passage groove 321b. That is, as shown in Fig. 8, the second cover cap 320b does not contact the terminal cable L and can be kept closed (see the terminal cable shown by the one-dot chain line).

<When the size of the terminal cable is larger than the size of the two cable passing grooves>

Fig. 9 is a view showing another example of a state before the terminal cover covers the electrode terminal of the battery pack according to the embodiment of the present invention. Fig. 10 is a cross- And shows another example of the state after covering.

9 and 10, the size of the first cable passage groove 321a is smaller than that of the second cable passage groove 321b. This is the same as the embodiment shown in Figs. 5 to 8. However, in terms of the size of the terminal cable L, the embodiment shown in Figs. 9 and 10 is different from the embodiment shown in Figs. 5 to 8.

That is, the size of the terminal cable L is not only larger than the size of the first cable passage groove 321a but also larger than the size of the second cable passage groove 321b (i.e., the size of the first cable passage groove < Size of cable through-hole <size of terminal cable). In this case, although the terminal cable L may extend outward through the first cable passage groove 321a or the second cable passage groove 321b, the first cover cap 320a or the second cover cap 320b Can not be maintained in a closed state, but is rotated by a predetermined angle to be held in the upper part. That is, as shown in FIG. 10, the first cover cap 320a and the second cover cap 320b are in contact with the terminal cable L so that they can not be held in a closed state. At this time, since the size of the first cable passage groove 321a is smaller than that of the second cable passage groove 321b, the first cover cap 320a rotates more than the second cover cap 320b. That is, the first cover cap 320a is more in the upper portion than the second cover cap 320b.

As described above, the terminal cover 300 according to the embodiment of the present invention can cover the terminal cable L of various sizes. Even when the size of the terminal cable L is large, the cover cap 320 rotates by a predetermined angle so that the terminal cable L can be extended to the outside. When the terminal cable L is smaller than the cable passage groove 321 formed in any of the cover caps 320 of the cover cap 320, the cable passage groove 321 formed in the cover cap 320 So that the cover cap 320 can be held in a closed state. Therefore, the terminal cover 300 can more stably cover the electrode terminal 200 and the like.

Meanwhile, the terminal cover 300 may cover the electrode terminal 200 while being coupled to the battery pack. To this end, the terminal cover 300 may further include a coupling portion 340. At this time, the coupling part 340 is provided on the cover body 310 and is coupled to the battery pack having the electrode terminal 200, so that the terminal cover 300 can cover the electrode terminal 200.

11 is a partial perspective view of a terminal cover and a battery pack according to an embodiment of the present invention. That is, FIG. 11A is an enlarged view of the periphery of the left electrode terminal of FIG. 1, and FIG. 11B is an enlarged view of the periphery of the right electrode terminal of FIG.

Fig. 12 is a view of the terminal cover of Fig. 11 (a) viewed from the front direction. Fig.

11 and 12, the cover body 310 has a coupling protrusion 341 formed therein. The engaging projection 341 has a bar shape. 11 and 12, the engaging projection 341 has a press-in bar 342 of a long cylindrical shape extending from the engaging projection 341. [

The pack housing 100 of the battery pack is provided with a coupling structure 110 for coupling with the coupling portion 340 of the terminal cover 300. More specifically, the pack housing 100 is formed with bar-shaped corresponding grooves h1 and h2 so that the two engaging projections 341 can be inserted. Further, the pack housing 100 is provided with a space into which the press-fitting bar 342 can be inserted. This space is provided by a plurality of plates P1 to P6 formed in the pack housing 100. [ The plates P3 to P6 provided on both sides of the space into which the press-fitting bar 342 is inserted are bent to face inward. Therefore, the indentation bar 342 is not easily detached after being press-fitted into the space s.

11 and 12, the battery pack according to the present invention is not limited to this embodiment, although one embodiment of the coupling portion 340 to the coupling structure 110 has been shown. That is, the coupling unit 340 may be implemented in various forms, and may be coupled to the battery pack. For example, the coupling portion 340 of the terminal cover 300 may be coupled to the battery pack by bonding, welding, or the like, and may be coupled to the battery pack by various methods not listed.

In addition, the terminal cover 300 may further include a stopper 343 for preventing the terminal cover from being inserted beyond a predetermined range.

Referring again to FIGS. 11 and 12, it can be seen that the terminal cover 300 further includes a stopper 343. FIG. The stopper 343 is provided to prevent the terminal cover 300 from being inserted beyond a predetermined range when the terminal cover 300 and the pack housing 100 are coupled to each other. . 2, the stopper 343 is formed at a position opposite to the engaging protrusion 341 and the press-in bar 342, but the number and / or position of the stopper 343 is limited thereto It is not.

The terminal cover 300 according to another embodiment of the present invention may further include an elastic member 350. The elastic member 350 is provided between the cover body 310 and the cover cap 320 to connect the cover body 310 and the cover cap 320. The elastic member 350 may be formed of rubber, spring, or the like, and is not limited to a specific shape or material. Any material that can provide an elastic force between the cover body 310 and the cover cap 320 Can be applied.

FIG. 13 is a view showing an operational configuration of a terminal cover according to another embodiment of the present invention. FIG.

Referring to FIG. 13, the terminal cover 300 further includes an elastic member 350. The elastic member 350 is connected between the cover body 310 and the cover cap 320.

13, the terminal cable L extends outward through a cable passing portion 312 formed on one side surface of the cover main body 310. As shown in Fig. The cover cap 320 connected to one side of the cover body 310 is in contact with the terminal cable L. [ At this time, the elastic member 350 connected between the cover body 310 and the cover cap 320 provides an elastic force in a direction in which the cover cap 320 approaches the cover body 310 (see the arrow shown in FIG. 13) Thereby preventing the cover cap 320 from being excessively lifted. That is, the cover cap 320 receives an elastic force in the direction of the arrow shown in Fig. Therefore, the cover cap 320 can be maintained in a fixed state without unnecessarily flowing.

Preferably, the terminal cover 300 may be made of a material having insulation properties. Also, preferably, the terminal cover 300 may be injection molded and formed integrally. That is, the cover body 310 and the cover cap 320 of the terminal cover 300 may be integrally formed by injection molding.

The battery pack according to the present invention may include the terminal cover 300 described above. The battery pack may further include a cell assembly, a pack housing 100, etc. in addition to the terminal cover 300 described above. The terminal cover 300 may further include a coupling structure 110 corresponding to the coupling portion 340 of the terminal cover 300 so that the terminal cover 300 can be coupled to the battery pack.

On the other hand, in the present specification. Direction, such as up, down, left, right, inside, outside, etc., are used, but these terms are only for convenience of description, and are used for explanation object, target viewer's position, It will be apparent to those skilled in the art that various modifications and variations can be made thereto.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not to be limited to the details thereof and that various changes and modifications will be apparent to those skilled in the art. And various modifications and variations are possible within the scope of the appended claims.

100: Pack housing
200: electrode terminal
300: Terminal cover
310: Cover body
311:
312: Cable passage portion
320, 320a, 320b: a cover cap
321, 321a, 321b: Cable passage groove
330: Connection
340:
350: elastic member
L: Terminal cable

Claims (11)

A terminal cover for covering an electrode terminal of a battery pack,
A terminal inserting portion is formed at a lower end of the inserting portion so that the electrode terminal can be inserted into the inner space, and a cable passing portion A cover body formed;
A cover cap which is connected to one side of the cover body formed with the cable passage portion and covers at least a part of the cable passage portion;
A connecting portion provided between the cover body and the cover cap; And
And an elastic member spaced from the connection portion,
The cover cap
The cover body being rotatably connected to the cover body via the connection portion,
The elastic member
Wherein one end is connected to the cover body and the other end is connected to the cover cap to provide an elastic force from the cover cap toward the cover body.
The method according to claim 1,
Wherein the cover cap is formed with a cable passage groove through which the terminal cable can pass. 3. The method of claim 2,
And the width of the cable passage portion is wider than the width of the cable passage groove. The method according to claim 1,
The cable passing portion is formed on the both sides of the cover body,
Wherein two cover caps are provided to cover the two cable passing portions one by one. The method according to claim 1,
Wherein the terminal cover is made of a material having insulating properties.
The method according to claim 1,
And is integrally formed by injection molding. delete The method according to claim 1,
Wherein the cover body further includes a coupling portion that engages with the battery pack having the electrode terminal. 9. The method of claim 8,
Wherein the engaging portion includes at least one bar-shaped engaging projection formed to extend from the cover body. 10. The method of claim 9,
Wherein at least one of the engaging projections is provided with a cylindrical push-in bar extending from the engaging projection, the engaging projection being longer than the engaging projection. A battery pack comprising a terminal cover according to any one of claims 1 to 6 and 8 to 10.

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