Battery pack and electronic equipment

Abstract

The utility model relates to a battery pack and electronic equipment, and the battery pack comprises a box body which is provided with a containing cavity; the locking and attaching beam is detachably connected with the box body, and the containing cavity is divided into a module area and an electrical area by the locking and attaching beam; the battery module is arranged in the module area; the first cover body is connected with the box body and covers the module area; a gap is formed between the locking and attaching beam and the cavity bottom of the accommodating cavity, and a wire harness connected with the battery module penetrates through the lower part of the locking and attaching beam to enter the electrical area. The locking and attaching beam and the box body can be separated, and the wire can penetrate through the lower part of the locking and attaching beam, so that in the assembling process of the battery pack, the wire harness can be connected and mounted firstly, and then the locking and attaching beam is mounted on the box body, so that the wiring and mounting of the wire harness can be facilitated, and the production efficiency of the battery pack can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery pack and an electronic device. Background Art

[0002] The existing battery pack box is usually equipped with a partition, which divides the box cavity into a module area and an electrical area. The battery module (cell) is located in the module area, and the electrical area is usually used to place electronic control components such as BMS and BDU. The wiring harness and copper busbar connected to the cell need to pass through the partition and enter the electrical area to connect with the electronic control components. The box and partition of the existing battery pack are usually welded or integrated. When installing the wiring harness and copper busbar, the partition hinders the operation, resulting in low production efficiency. Utility Model Content

[0003] Based on this, it is necessary to provide a battery pack and an electronic device to address the above technical problems, which can facilitate the installation of the wiring harness and thus improve the production efficiency of the battery pack.

[0004] In a first aspect, the present application provides a battery pack, comprising:

[0005] A box body having a containing cavity;

[0006] A locking beam, detachably connected to the box body, the locking beam divides the accommodating cavity into a module area and an electrical area;

[0007] A battery module is arranged in the module area;

[0008] A first cover body, connected to the box body and covering the module area;

[0009] There is a gap between the locking beam and the bottom of the accommodating cavity, and the wiring harness connected to the battery module passes through the bottom of the locking beam and enters the electrical area.

[0010] In one embodiment, the locking beam is in the shape of an elongated strip, a first end of the locking beam is detachably connected to one side of the box body, and a second end of the locking beam is detachably connected to the other side of the box body.

[0011] In one of the embodiments, a sealant is provided between the first end and / or the second end of the locking beam and the box body.

[0012] In one embodiment, the locking beam includes a first beam section, a second beam section and a third beam section, and the first beam section, the second beam section and the third beam section are connected in sequence, the end of the first beam section away from the second beam section is detachably connected to one side of the box body, and the end of the third beam section away from the second beam section is detachably connected to the other side of the box body, and with the bottom of the accommodating cavity as a reference, the end of the first beam section and the end of the third beam section are both lower than the second beam section.

[0013] In one embodiment, the detachable connection between the locking beam and the box body includes screw connection, snap connection or plug connection.

[0014] In one of the embodiments, the gap between the locking beam and the bottom of the accommodating cavity is a clearance groove, and the wiring harness connected to the battery module passes through the clearance groove and enters the electrical area.

[0015] In one embodiment, the first cover is connected to the upper surface of the locking beam.

[0016] In one embodiment, adhesive is provided between the first cover and the battery module.

[0017] In one of the embodiments, the battery pack further includes a second cover, which is connected to the box and covers the electrical area.

[0018] In one embodiment, the second cover is detachably connected to the box.

[0019] In one of the embodiments, the second cover is detachably connected to the upper surface of the locking beam.

[0020] In a second aspect, the present application also provides an electronic device, comprising the battery pack described above.

[0021] The above introduces a battery pack and an electronic device. The battery pack includes a box body, a locking beam, a battery module and a first cover body. The locking beam divides the accommodating cavity of the box body into a module area and an electrical area. The first cover body is connected to the box body and covers the module area to protect the battery module therein. The locking beam is detachably connected to the box body. The wiring harness connected to the battery module passes through the bottom of the locking beam and enters the electrical area. The locking beam is separable from the box body, and the wiring can be threaded under the locking beam. Therefore, during the assembly process of the battery pack, the wiring harness can be connected and installed first, and then the locking beam can be installed to the box body. This can facilitate the wiring and installation of the wiring harness, which is beneficial to improving the production efficiency of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a three-dimensional structure of a battery pack provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a top view of a battery pack provided in an embodiment of the present application after removing a first cover and a second cover;

[0024] Figure 3 A schematic diagram of a three-dimensional structure of a battery pack provided in an embodiment of the present application after removing a first cover and a second cover;

[0025] Figure 4 for Figure 3 The enlarged structural schematic diagram of the battery pack at position A is shown;

[0026] Figure 5 An exploded schematic diagram of a battery pack provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a three-dimensional structure of a locking beam provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the structure of another locking beam provided in an embodiment of the present application.

[0029] The reference numerals in the embodiments of the present application are described as follows:

[0030] Battery pack 100, box body 10, locking beam 11, first beam section 111, second beam section 112, third beam section 113, avoidance groove 114, sealant 12, battery module 20, wiring harness 21, adhesive 22, first cover body 31, second cover body 32, module area 41, electrical area 42, first sealing strip 51, second sealing strip 52, first end P, second end Q. DETAILED DESCRIPTION

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] Please also read Figures 1 to 3 The battery pack 100 of this embodiment includes a box body 10 , a locking beam 11 , a battery module 20 , a first cover body 31 and a second cover body 32 .

[0034] The box body 10 has a accommodating cavity; the locking beam 11 is detachably connected to the box body 10, and the locking beam 11 divides the accommodating cavity into a module area 41 and an electrical area 42; the battery module 20 is arranged in the module area 41; the first cover body 31 is connected to the box body 10 and covers the module area 41; wherein, there is a gap between the locking beam 11 and the bottom of the accommodating cavity, and the wiring harness 21 connected to the battery module 20 passes from the bottom of the locking beam 11 and enters the electrical area 42.

[0035] In this embodiment, the locking beam 11 is separable from the box body 10, and wires can be threaded underneath the locking beam 11. Therefore, during the assembly process of the battery pack 100, the wiring harness 21 can be connected and installed first, and then the locking beam 11 can be installed to the box body 10. This can facilitate the wiring and installation of the wiring harness 21, which is beneficial to improving the production efficiency of the battery pack 100.

[0036] The battery module 20 may include a plurality of cells arranged and distributed in the module area 41. The first cover 31 is connected to the box 10 and covers the module area 41 to protect the battery module 20 therein. The electrical area 42 may be used to place electronic control components such as BMS and BDU. The battery module 20 is connected to electronic control components such as BMS and BDU through copper busbars and wiring harnesses 21.

[0037] The locking beam 11 is in the shape of a long strip, and its two ends are respectively connected to the two side walls of the box body 10, or its two ends are respectively connected to the bottom of the accommodating cavity of the box body 10. The locking beam 11 can be in the shape of a bridge. There is a threading space below the locking beam 11, and the wire harness 21 and the copper plate can pass through it.

[0038] The locking beam 11 is detachably connected to the box body 10 , for example, the locking beam 11 can be installed on the box body 10 by screws or clamping.

[0039] The locking beam 11 is in the shape of an elongated strip, and the two ends of the locking beam 11 are respectively a first end P and a second end Q. The first end P is detachably connected to one side of the box body 10 , and the second end Q is detachably connected to the other side of the box body 10 .

[0040] See also Figure 6 In one embodiment, the locking beam 11 includes a first beam section 111, a second beam section 112 and a third beam section 113, the first beam section 111, the second beam section 112 and the third beam section 113 are connected in sequence, the end of the first beam section 111 away from the second beam section 112 is detachably connected to one side of the box body 10 (for example, screw connection), and the end of the third beam section 113 away from the second beam section 112 is detachably connected to the other side of the box body 10 (for example, screw connection), with the bottom of the accommodating cavity as a reference, the end of the first beam section 111 (i.e., the first end P) and the end of the third beam section 113 (i.e., the second end Q) are both lower than the second beam section 112. The first end P and the second end Q are both lower than the second beam section 112, that is, the second beam section 112 is arched upward (the locking beam 11 can be arched as a whole), which provides more space for the battery module 20 and the wiring harness 21, which is conducive to increasing the capacity of the battery pack 100 and improving the convenience of threading.

[0041] The first beam 111, the second beam 112 and the third beam 113 can be three sections of profiles, which are welded together to form the locking beam 11. The locking beam 11 can also be an integrally formed profile or a die-casting or forging. The box 10 and the locking beam 11 can both be made of aluminum.

[0042] In one embodiment, the detachable connection between the locking beam 11 and the box body 10 includes screw connection, snap connection or plug connection. The locking beam 11 and the box body 10 can be connected by screws or snap connection, and a slot can be provided on the side wall of the box body 10, and the end of the locking beam 11 is inserted into the slot (plugged) to achieve detachable connection.

[0043] See also Figure 3 and Figure 4 In one embodiment, a sealant 12 is provided between the first end P and / or the second end Q of the locking beam 11 and the box body 10 , thereby improving the sealing between the locking beam 11 and the box body 10 and strengthening the protection of the battery module 20 .

[0044] In one embodiment, the first cover 31 is connected to the upper surface of the locking beam 11. The first cover 31 has four edges, three of which are connected to the side walls of the box 10, and the fourth edge can be connected to the upper surface of the locking beam 11. A first annular sealing strip 51 can be provided below the four edges of the first cover 31, thereby improving the sealing between the first cover 31 and the box 10, and between the first cover 31 and the locking beam 11.

[0045] See also Figure 5In one embodiment, an adhesive 22 is provided between the first cover 31 and the battery module 20. The adhesive 22 can improve the position stability of the battery module 20, thereby improving the safety of the battery. The adhesive 22 can be made of an adhesive material as a whole, or it can be made of foam as the main body and then the adhesive material is coated on the outer surface of the foam.

[0046] The second cover 32 is connected to the box body 10 and covers the electrical area 42 , thereby protecting the circuit components in the electrical area 42 .

[0047] In one embodiment, the second cover 32 is detachably connected to the box 10, thereby facilitating maintenance work on the circuit components in the electrical area 42. The connection between the second cover 32 and the box 10 can be a screw connection or a snap connection. During maintenance, the second cover 32 can be removed first, and then the circuit in the electrical area 42 can be inspected and repaired.

[0048] In one embodiment, the second cover body 32 is detachably connected to the upper surface of the locking beam 11, such as by screw connection or snap connection. The four edges of the second cover body 32, three of which are connected to the side walls of the box body 10, and the fourth edge can be connected to the upper surface of the locking beam 11. A second annular sealing strip 52 can be provided under the four edges of the second cover body 32, thereby improving the sealing between the second cover body 32 and the box body 10, and between the second cover body 32 and the locking beam 11. The first cover body 31, the second cover body 32 and the box body 10 can enclose a sealed space to protect the battery module 20 and circuit devices in the accommodating cavity. The first sealing strip 51 and the second sealing strip 52 can be non-sticky rubber rings, or can be sticky materials, or can be made of rubber (such as silicone) as the main body and then have a sticky material coated on the outer surface of the rubber.

[0049] The present application also provides another embodiment of the locking beam 11, such as Figure 7 As shown, the gap between the locking beam 11 and the bottom of the accommodating cavity of the box body 10 is a clearance groove 114, and the wiring harness connected to the battery module 20 passes through the clearance groove 114 and enters the electrical area 42. The number of the clearance grooves 114 can be one or more. The locking beam 11 can be in the shape of a plate, and the clearance groove 114 is provided at the bottom of the locking beam 11, and the notch faces the bottom of the accommodating cavity of the box body 10.

[0050] An assembly process of the battery pack 100 of the present embodiment is: (1) installing the battery module 20 in the module area 41; (2) installing the electronic control components such as BMS and BDU in the electrical area 42; (3) leading the copper bus and wiring harness 21 from the battery module 20 and connecting them to the electronic control components in the electrical area 42; (4) installing the locking beam 11 and applying the sealant 12 at the connection; (5) laying the adhesive 22 on the top of the battery module 20; (6) laying the first sealant 12 and the second sealant 12; (7) installing the first cover 31 and the second cover 32.

[0051] In summary, the battery pack 100 of the present embodiment includes a case body 10, a locking beam 11, a battery module 20 and a first cover body 31. The locking beam 11 divides the accommodating cavity of the case body 10 into a module area 41 and an electrical area 42. The first cover body 31 is connected to the case body 10 and covers the module area 41 to protect the battery module 20 therein. The locking beam 11 is detachably connected to the case body 10. The wiring harness 21 connected to the battery module 20 passes through the bottom of the locking beam 11 and enters the electrical area 42. The locking beam 11 is detachable from the case body 10, and wiring can be threaded under the locking beam 11. Therefore, during the assembly process of the battery pack 100, the wiring harness 21 can be connected and installed first, and then the locking beam 11 can be installed to the case body 10. This can facilitate the wiring installation of the wiring harness 21, which is beneficial to improving the production efficiency of the battery pack 100.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A battery pack, characterized in that: include: A box body having a containing cavity; A locking beam, detachably connected to the box body, the locking beam divides the accommodating cavity into a module area and an electrical area; A battery module is arranged in the module area; A first cover body, connected to the box body and covering the module area; There is a gap between the locking beam and the bottom of the accommodating cavity, and the wiring harness connected to the battery module passes through the bottom of the locking beam and enters the electrical area.

2. The battery pack according to claim 1, characterized in that: The locking beam is in the shape of an elongated strip, a first end of the locking beam is detachably connected to one side of the box body, and a second end of the locking beam is detachably connected to the other side of the box body.

3. The battery pack according to claim 1, characterized in that: A sealant is provided between the first end and / or the second end of the locking beam and the box body.

4. The battery pack according to claim 1, characterized in that: The locking beam includes a first beam section, a second beam section and a third beam section, the first beam section, the second beam section and the third beam section are connected in sequence, the end of the first beam section away from the second beam section is detachably connected to one side of the box body, and the end of the third beam section away from the second beam section is detachably connected to the other side of the box body, and with the bottom of the accommodating cavity as a reference, the ends of the first beam section and the third beam section are both lower than the second beam section.

5. The battery pack according to claim 1, characterized in that: The detachable connection between the locking beam and the box body includes screw connection, clip connection or plug connection.

6. The battery pack according to claim 1, characterized in that: The gap between the locking beam and the bottom of the accommodating cavity is a position-avoiding groove, and the wiring harness connected to the battery module passes through the position-avoiding groove and enters the electrical area.

7. The battery pack according to claim 1, characterized in that: The first cover is connected to the upper surface of the locking beam.

8. The battery pack according to claim 1, characterized in that: Adhesive is provided between the first cover and the battery module.

9. The battery pack according to any one of claims 1 to 8, characterized in that: The battery pack further includes a second cover body, which is connected to the box body and covers the electrical area.

10. The battery pack according to claim 9, characterized in that: The second cover is detachably connected to the box.

11. The battery pack according to claim 9, characterized in that: The second cover is detachably connected to the upper surface of the locking beam.

12. An electronic device, characterized in that: Comprising a battery pack as described in any one of claims 1-11.

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