A battery module and energy storage system

Abstract

The embodiment of the utility model relates to the field of energy storage technology, and discloses a battery module and an energy storage system, wherein the battery module comprises a shell, a top cover, a battery cell assembly, a first end plate, a limiter and a wiring harness; the top cover covers the shell along a first direction; the battery cell assembly is accommodated in the shell; the first end plate and the battery cell assembly are arranged along a first direction; the limiter is arranged on a side of the first end plate away from the battery cell assembly; one end of the wiring harness is connected to the battery cell assembly, and part of the wiring harness is arranged on a side of the limiter away from the first end plate and fixed to the limiter to limit the movement of the wiring harness.

Description

Technical Field

[0001] The embodiments of the utility model relate to the field of energy storage technology, and in particular to a battery module and an energy storage system. Background Art

[0002] The battery module generally includes a shell, a battery cell assembly and a wiring harness. The shell includes a shell and a top cover. The battery cell assembly is housed in the shell. One end of the wiring harness is electrically connected to the battery cell assembly, and the other end is used to connect to the electrical device. During the assembly process, one end of the wiring harness needs to be electrically connected to the battery cell assembly first, then the battery cell assembly is placed in the shell, and finally the top cover is closed over the shell.

[0003] During the implementation of the embodiments of the utility model, the inventor discovered that the wiring harness may move, affecting the electrical connection of the battery module. Utility Model Content

[0004] The main technical problem solved by the embodiments of the utility model is to provide a battery module and an energy storage system to limit the movement of the wiring harness.

[0005] In order to solve the above technical problems, a technical solution adopted in the embodiment of the utility model is: provide a battery module, including a shell, a top cover, a battery cell assembly, a first end plate, a limiter and a wiring harness; the top cover covers the shell along a first direction; the battery cell assembly is accommodated in the shell; the first end plate and the battery cell assembly are arranged along a first direction; the limiter is arranged on the side of the first end plate away from the battery cell assembly; one end of the wiring harness is connected to the battery cell assembly, and part of the wiring harness is arranged on the side of the limiter away from the first end plate and fixed to the limiter. In this embodiment, by fixing part of the wiring harness to the limiter, the movement of the wiring harness is restricted, thereby reducing the risk of loosening between the wiring harness and the battery cell assembly and affecting the electrical connection between the wiring harness and the battery cell assembly, thereby improving the safety of the battery module.

[0006] In one or more / any one of the above optional embodiments, the battery module includes a circuit board, which is arranged on the side of the stopper away from the first end plate; the circuit board is provided with a first connection part, and the wiring harness is provided with a second connection part, which is plugged into the first connection part. In this embodiment, the convenience of connecting the wiring harness and the circuit board can be improved by plugging and matching the first connection part and the second connection part.

[0007] In one or more / any one of the above optional embodiments, the circuit board is separated from the wiring harness along the second direction, and the second direction is perpendicular to the first direction. By separating the wiring harness from the circuit board, the interference of the magnetic field generated by the current in the wiring harness on the electronic components in the circuit board can be reduced.

[0008] In one or more / any one of the above optional embodiments, the shell includes a first side wall and a second side wall arranged opposite to each other along a second direction, and the second direction is perpendicular to the first direction; the limiting member includes a base and a first protrusion, the base is fixed to the side of the first end plate away from the battery cell assembly, and the base is located between the circuit board and the battery cell assembly.

[0009] In one or more / any one of the above optional embodiments, the limiting member is provided with a first hole, and the battery module includes a first fastener, which passes through the first hole to fix the wiring harness and the limiting member.

[0010] In one or more / any one of the above optional embodiments, the first hole is arranged on the base. The first hole is arranged on the base to facilitate the installation of the first fastener.

[0011] In one or more / any one of the above optional embodiments, the first fastener includes a cable tie, and along the second direction, part of the first fastener is located between the first protrusion and the wiring harness, which can reduce the friction between the wiring harness and the first protrusion and reduce the risk of damage to the insulation layer of the wiring harness.

[0012] In one or more / any one of the above optional embodiments, a first metal boss is provided on the first surface of the base, and the first surface faces away from the first end plate; the battery module includes a circuit board, the circuit board is fixed to the first metal boss, the circuit board is electrically connected to the first metal boss, and the first metal boss is electrically connected to the shell. By providing the first metal boss, the circuit board is electrically connected to the shell through the first metal boss, so that the circuit board is grounded, ensuring the safety of the battery module, and the circuit board is suspended relative to the first surface through the first metal boss, which is conducive to reducing the risk of short circuit in the circuit board.

[0013] In one or more / any one of the above optional embodiments, the battery module includes a support member, one end of the support member is connected to the circuit board, and the other end of the support member is connected to the base, and along the first direction, the circuit board is separated from the first surface of the base. By providing the support member, the support member and the first metal protrusion can jointly support the circuit board, thereby improving the stability of the circuit board support.

[0014] In one or more / any one of the above optional embodiments, the circuit board is provided with a plug hole, one end of the support member is plugged into the plug hole, the base is provided with a mounting hole, and the other end of the support member is plugged into the mounting hole. By plugging one end of the support plate into the plug hole and the other end into the mounting hole, the movement of the support member in the first direction and the second direction is restricted, and the stability of the support member supporting the circuit board can be improved.

[0015] In order to solve the above technical problems, another technical solution adopted by the embodiment of the utility model is: to provide an energy storage system, including the above battery module.

[0016] The beneficial effects of the embodiments of the utility model are as follows: different from the prior art, in the embodiments of the utility model, by arranging the first end plate and the battery cell assembly along the first direction, setting the limiting member on the side of the first end plate away from the battery cell assembly, setting part of the wiring harness on the side of the limiting member away from the first end plate, and fixing part of the wiring harness to the limiting member, the movement of the wiring harness is restricted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a structural schematic diagram of a battery module provided in an embodiment of the utility model;

[0019] Figure 2 is a schematic diagram of the disassembled state of the battery module provided in the embodiment of the utility model;

[0020] Figure 3 yes Figure 2 A magnified view of the area shown in middle A;

[0021] Figure 4 It is a schematic diagram of the structure of the battery module provided in the embodiment of the utility model when the top cover is hidden;

[0022] Figure 5 yes Figure 4 A magnified view of the area shown in part B;

[0023] Figure 6 yes Figure 4 Enlarged view of the area shown in middle C;

[0024] Figure 7 It is a structural schematic diagram of a position limiting member provided in an embodiment of the utility model;

[0025] Figure 8 It is a schematic diagram of a partial structure of a battery module when the first fastener provided in an embodiment of the utility model is a cable tie;

[0026] Fig. 9 It is a partial structural schematic diagram of a battery module provided in an embodiment of the utility model;

[0027] Fig.10 It is a structural schematic diagram of the battery core assembly and the first end plate provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element or there can be one or more centered elements therebetween. The orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "vertical", "horizontal", etc. used in this specification is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0030] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] See also Figure 1 and Figure 2 The battery module 100 includes a shell 11, a top cover 12 and a cell assembly 2. The cell assembly 2 is accommodated in the shell 11, and the top cover 12 covers the shell 11 along a first direction X.

[0032] In some embodiments, see Figures 2 to 5 The battery module 100 includes a first end plate 3, a stopper 5 and a wiring harness 4. The battery cell assembly 2 and the first end plate 3 are arranged along a first direction X, and the first end plate 3 is located between the battery cell assembly 2 and the top cover 12. The stopper 5 is disposed on a side of the first end plate 3 away from the battery cell assembly 2, one end of the wiring harness 4 is connected to the battery cell assembly 2, a portion of the wiring harness 4 is disposed on a side of the stopper 5 away from the first end plate 3, and a portion of the wiring harness 4 is fixed to the stopper 5. In this embodiment, by fixing a portion of the wiring harness 4 to the stopper 5 to limit the movement of the wiring harness 4, when the top cover 12 is closed over the shell 11, the risk of the insulation layer of the wiring harness 4 being damaged due to the pressing of the top cover 12 and the shell 11 can be reduced, which is beneficial to improving the safety of the battery module 100.

[0033] In some embodiments, see Figure 3 and Figure 6 The battery module 100 includes a circuit board 6, which is disposed at one end of the stopper 5 away from the first end plate 3, and the circuit board 6 is provided with a first connection portion 61, and the wiring harness 4 is provided with a second connection portion 41, and the second connection portion 41 is plugged into the first connection portion 61 to achieve electrical connection between the wiring harness 4 and the circuit board 6. In this embodiment, the electrical connection between the wiring harness 4 and the circuit board 6 is achieved by plugging and matching between the first connection portion 61 and the second connection portion 41, and the installation is convenient.

[0034] In some embodiments, the circuit board 6 is provided with a plurality of first connection parts 61 , the wiring harness 4 is provided with a plurality of second connection parts 41 , and a second connection part 41 is plugged into a first connection part 61 .

[0035] By fixing part of the wiring harness 4 to the limit piece 5, the swinging of the wiring harness 4 and the amplitude of the swinging of the wiring harness 4 during the transportation or use of the battery module 100 can be reduced, thereby reducing the risk of the wiring harness 4 and the circuit board 6 becoming loose or even separating from each other due to the swinging of the wiring harness 4 between the first connection part 61 and the second connection part 41, which is beneficial to improving the stability of the electrical connection between the wiring harness 4 and the circuit board 6.

[0036] In some embodiments, see Figure 5 , along the second direction Y, the circuit board 6 is separated from the wiring harness 4, which can reduce the risk of the wiring harness 4 interfering with the circuit board 6, wherein the second direction Y is perpendicular to the first direction X. When a signal or current passes through the wiring harness 4, a magnetic field is generated around the wiring harness 4. By separating the circuit board 6 from the wiring harness 4, the influence of the magnetic field generated by the wiring harness 4 on the electronic devices in the circuit board 6 can be reduced.

[0037] In some embodiments, see Figure 2 , Figure 3 and Figure 7 The housing 11 includes a first side wall 111 and a second side wall 112 that are arranged opposite to each other along the second direction Y. The stopper 5 includes a base 51 and a first protrusion 52. The base 51 is fixed to a side of the first end plate 3 that is away from the battery cell assembly 2. The base 51 is located between the circuit board 6 and the battery cell assembly 2. The first protrusion 52 is connected to an end of the base 51 that is close to the second side wall 112.

[0038] See also Figure 8 , viewed along the first direction X, part of the wiring harness 4 is disposed between the first protrusion 52 and the circuit board 6 , thereby reducing the interference of the wiring harness 4 with the circuit board 6 .

[0039] In some embodiments, the first protrusion 52 is arranged at a first angle with the base 51. The first angle between the first protrusion 52 and the base 51 is 80° to 100°, preferably 90°.

[0040] In some embodiments, the housing 11 includes a third side wall 113, a fourth side wall 114 and a bottom wall 115, the third side wall 113 and the fourth side wall 114 are arranged opposite to each other along the third direction Z, and the top cover 12 and the bottom wall 115 are arranged opposite to each other along the first direction X. The first side wall 111, the second side wall 112, the third side wall 113, the fourth side wall 114 and the bottom wall 115 are connected to form a receiving space, and the battery cell assembly 2 is arranged in the receiving space.

[0041] In some embodiments, Figure 3 , Figure 5 and Figure 7 The limiting member 5 is provided with a first hole 511 , and the battery module 100 includes a first fastener 71 , which passes through the first hole 511 , and the first fastener 71 fixes the wiring harness 4 and the limiting member 5 .

[0042] In some embodiments, the first hole 511 is disposed on the base 51. It is more convenient to install the first fastener 71.

[0043] It is understandable that the first hole 511 may be disposed on the first protruding portion 52 .

[0044] In some embodiments, see Figure 7 and Figure 8 The first fastener 71 may be a cable tie, which passes through the first hole 511 and binds and fixes a portion of the wire harness 4 and the limiting member 5 together to limit the movement of the wire harness 4 .

[0045] In some embodiments, along the second direction Y, a portion of the first fastener 71 is located between the first protrusion 52 and the wire harness 4 , thereby reducing direct contact between the wire harness 4 and the first protrusion 52 and improving protection of the wire harness 4 .

[0046] In some embodiments, the cable tie passes through the first hole 511 and passes around the first protrusion 52 to face away from the surface of the wire harness 4 to bind and fix part of the wire harness 4 .

[0047] In some embodiments, see Figure 3 and Figure 5The first stopper 5 includes a second protrusion 53, which is connected to one end of the base 51 close to the second side wall 112, and is arranged at a second angle with the base 51. The second protrusion 53 is spaced from the first protrusion 52, and part of the wire harness 4 is located on the side of the second protrusion 53 away from the second side wall 112. The second protrusion 53 is configured to limit the movement of part of the wire harness 4 along the second direction Y. The second protrusion 53 can limit the movement of the wire harness 4 along the second direction Y to reduce the risk of the wire harness 4 moving along the second direction Y to between the second side wall 112 and the top cover 12.

[0048] In some embodiments, the first protrusion 52 and the second protrusion 53 are spaced apart from each other.

[0049] In some embodiments, the second angle between the second protrusion 53 and the base 51 is 80° to 100°, preferably 90°.

[0050] In some embodiments, the base 51 is provided with a second hole 512, and the battery module 100 includes a second fastener 72, which passes through the second hole 512, and the second fastener 72 fixes the wire harness 4 to the stopper 5. In this embodiment, by providing the second fastener 72, the stability of the fixation between the wire harness 4 and the stopper 5 can be improved.

[0051] In some embodiments, the second hole 512 is disposed on the base 51. It is more convenient to install the second fastener 72.

[0052] It is understandable that the second hole 512 may also be provided on the second protruding portion 53 .

[0053] In some embodiments, see Figure 7 and Figure 8 The second fastener 72 is a cable tie, which passes through the second hole 512 and binds and fixes part of the wire harness 4 and the limiting member 5 together to limit the movement of the wire harness 4.

[0054] Furthermore, the cable tie passes through the second hole 512 and goes around the second protrusion 53 to face away from the surface of the wire harness 4 to bind and fix part of the wire harness 4 .

[0055] In some embodiments, see Figure 3 , Figure 7 and Fig. 9, a first metal boss 514 is provided on the first surface 513 of the base 51, and the first surface 513 is away from the first end plate 3. The circuit board 6 is fixed to one end of the first metal boss 514 away from the first surface 513, so that the circuit board 6 is suspended relative to the first surface 513. The circuit board 6 is electrically connected to the first metal boss 514, and the first metal boss 514 is electrically connected to the shell 11. In this embodiment, by providing the first metal boss 514, the circuit board 6 is electrically connected to the shell 11 through the first metal boss 514, so that the circuit board 6 is grounded, ensuring the safety of the battery module 100, and the circuit board 6 is suspended relative to the first surface 513 through the first metal boss 514, which is conducive to reducing the risk of short circuit in the circuit board 6.

[0056] In some embodiments, the circuit board 6 is provided with a first fixing hole 62, the first metal boss 514 is provided with a first screw hole 5141, and the battery module 100 includes a first screw connector 81, which passes through the first fixing hole 62 and is screwed to the first screw hole 5141 to fix the circuit board 6 to the first metal boss 514.

[0057] In some embodiments, the circuit board 6 is provided with a first grounding area (not shown) in the area facing the first metal boss 514. When the circuit board 6 is fixed to the first metal boss 514 by the first screw member 81, the first grounding area abuts against the first metal boss 514, so that the circuit board 6 is grounded through the first metal boss 514 and the shell 11.

[0058] In some embodiments, the first grounding area can be set in the area of ​​the circuit board 6 away from the first metal boss 514, and the first screw connector 81 is conductive. When the first screw connector 81 fixes the circuit board 6 to the first metal boss 514, the first grounding area abuts against the first screw connector 81, and the first grounding area is electrically connected to the first metal boss 514 through the first screw connector 81.

[0059] In some embodiments, the first surface 513 of the base 51 is provided with a second metal boss 515, and the circuit board 6 is fixed to one end of the second metal boss 515 away from the first surface 513, so that the circuit board 6 is suspended relative to the first surface 513. The circuit board 6 is electrically connected to the second metal boss 515, and the second metal boss 515 is also electrically connected to the housing 11. In this embodiment, by providing the second metal boss 515, the circuit board 6 can also be electrically connected to the housing 11 through the second metal boss 515, further improving the safety of the battery module 100, and the circuit board 6 is suspended relative to the first surface 513 by the second metal boss 515, thereby improving the stability of the fixation between the circuit board 6 and the stopper 5.

[0060] In some embodiments, the circuit board 6 is provided with a second fixing hole 63, the second metal boss 515 is provided with a second screw hole 5142, and the battery module 100 includes a second screw connector 82, which passes through the second fixing hole 63 and is screwed to the second screw hole 5142 to fix the circuit board 6 to the second metal boss 515.

[0061] In some embodiments, the circuit board 6 is provided with a second grounding area (not shown) in the area facing the second metal boss 515. When the circuit board 6 is fixed to the second metal boss 515 by the second screw connector 82, the second grounding area abuts against the second metal boss 515, so that the circuit board 6 is grounded through the second metal boss 515 and the shell 11.

[0062] In some embodiments, the second grounding area can be set in the area of ​​the circuit board 6 away from the second metal boss 515, and the second screw connector 82 is conductive. When the second screw connector 82 fixes the circuit board 6 to the second metal boss 515, the second grounding area abuts against the second screw connector 82, and the second grounding area is electrically connected to the second metal boss 515 through the second screw connector 82.

[0063] In some embodiments, see Figure 3 , Figure 7 and Fig. 9 The battery module 100 includes a support member 9, one end of the support member 9 is connected to the circuit board 6, and the other end of the support member 9 is connected to the base 51. The support member 9 is used to support the circuit board 6 so that the circuit board 6 is separated from the first surface 513 of the base 51 in the first direction X. Along the third direction Z, the support member 9 and the first metal protrusion 514 are spaced apart to reduce the risk of the circuit board 6 tilting relative to the first surface 513. The first direction X, the second direction Y and the third direction Z are perpendicular to each other. In this embodiment, by arranging the support member 9 to support the circuit board 6, the first metal protrusion 514 and the support member 9 jointly support the circuit board 6, and the stability of the support for the circuit board 6 can be improved.

[0064] In some embodiments, the support member 9 is made of plastic or silicone material, so that the support member 9 is non-conductive, which can reduce the impact of the support member 9 on the circuit board 6.

[0065] In some embodiments, see Figure 3 , Figure 7 and Fig. 9The circuit board 6 is provided with a plug hole 64, and one end of the support member 9 is plugged into the plug hole 64. The base 51 is provided with a mounting hole 516, and the other end of the support member 9 is plugged into the mounting hole 516. In this embodiment, by plugging one end of the support member 9 into the plug hole 64 and the other end into the mounting hole 516, the movement of the support member 9 in the second direction Y and the third direction Z is restricted, which is conducive to improving the stability of the support member 9 supporting the circuit board 6.

[0066] In some embodiments, there are multiple support members 9, the circuit board 6 is provided with multiple plug holes 64, the base 51 is provided with multiple mounting holes 516, the multiple mounting holes 516 are distributed in a rectangular array, one end of a support member 9 is plugged into a plug hole 64, and the other end of a support member 9 is plugged into a mounting hole 516, and multiple support members 9 are used to support the circuit board 6. In this embodiment, by providing multiple support members 9, the stability of the support for the circuit board 6 can be improved.

[0067] In some embodiments, see Fig.10 The battery cell assembly 2 includes a second end plate 21, multiple battery cells, multiple brackets 23 and a binding belt 24. Along the first direction X, the second end plate 21 and the first end plate 3 are arranged opposite to each other, and the multiple brackets 23 are stacked along the first direction X. A battery cell is located between two adjacent brackets 23, and the multiple battery cells and the multiple brackets 23 are both located between the first end plate 3 and the second end plate 21. The multiple battery cells are electrically connected to the circuit board 6, and the binding belt 24 binds and fixes the first end plate 3, the second end plate 21, the multiple battery cells and the multiple brackets 23.

[0068] In an embodiment of the utility model, the battery cell assembly 2 and the first end plate 3 are arranged along a first direction X, the limiter 5 is arranged on the side of the first end plate 3 away from the battery cell assembly 2, part of the wiring harness 4 is arranged on the side of the limiter 5 away from the first end plate 3, and part of the wiring harness 4 is fixed to the limiter 5, thereby limiting the movement of the wiring harness 4. When the top cover 12 covers the shell 11, the risk of wire compression can be reduced, and the occurrence of damage to the insulation layer of the wiring harness 4 can be reduced.

[0069] The present invention further provides an energy storage system embodiment, the energy storage system includes the above-mentioned battery module 100, the specific structure and function of the battery module 100 can be referred to the above-mentioned embodiment, and will not be described one by one here.

[0070] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A battery module, characterized in that: include: case; A top cover, the top cover covers the shell along a first direction; A battery cell assembly, wherein the battery cell assembly is accommodated in the shell; A first end plate, wherein the first end plate and the battery cell assembly are arranged along the first direction; A limiting member, the limiting member is arranged on a side of the first end plate away from the battery core assembly; A wiring harness, one end of which is connected to the battery core assembly, and a portion of the wiring harness is arranged on a side of the limiting member away from the first end plate and fixed to the limiting member.

2. The battery module according to claim 1, characterized in that: The battery module includes a circuit board, and the circuit board is arranged on a side of the limiting member away from the first end plate; The circuit board is provided with a first connection portion, and the wiring harness is provided with a second connection portion, and the second connection portion is plugged into the first connection portion.

3. The battery module according to claim 2, characterized in that: The circuit board is separated from the wiring harness along a second direction, and the second direction is perpendicular to the first direction.

4. The battery module according to claim 2, characterized in that: The housing comprises a first side wall and a second side wall arranged opposite to each other along a second direction, wherein the second direction is perpendicular to the first direction; The limiting member comprises a base and a first protrusion, wherein the base is fixed to a side of the first end plate away from the battery cell assembly, and the base is located between the circuit board and the battery cell assembly; When viewed along a first direction, a portion of the wiring harness is disposed between the first protrusion and the circuit board.

5. The battery module according to claim 4, characterized in that: The limiting member is provided with a first hole, and the battery module includes a first fastener, which passes through the first hole to fix the wiring harness and the limiting member.

6. The battery module according to claim 5, characterized in that: The first hole is disposed in the base.

7. The battery module according to claim 5, characterized in that: The first fastener comprises a cable tie, and a portion of the first fastener is located between the first protrusion and the wiring harness along the second direction.

8. The battery module according to any one of claims 4 to 7, characterized in that: A first metal protrusion is disposed on a first surface of the base, and the first surface faces away from the first end plate; The battery module includes a circuit board, the circuit board is fixed to the first metal protrusion, the circuit board is electrically connected to the first metal protrusion, and the first metal protrusion is electrically connected to the shell.

9. The battery module according to claim 8, characterized in that: The battery module comprises a support member, one end of the support member is connected to the circuit board, and the other end of the support member is connected to the base. Along a first direction, the circuit board is separated from a first surface of the base.

10. An energy storage system, characterized in that: Comprising a battery module as described in any one of claims 1-9.

Images