Panel assembly, connector assembly, battery pack and electric equipment

Abstract

The utility model provides a panel assembly, a connector assembly, a battery pack and electric equipment. The panel assembly comprises a panel body and a shielding cover, a first connecting hole is formed in the panel body, the shielding cover is installed on the panel body, a second connecting hole corresponding to the first connecting hole is formed in the shielding cover, and elastic pieces are arranged around the second connecting hole. According to the utility model, through the design of the shielding cover additionally provided with the elastic sheets, the influence of external interference on the connector can be effectively reduced, the stability of a system is improved, and the stable and reliable connection between the connector and external equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically to a panel assembly, a connector assembly, a battery pack and an electrical device. Background Art

[0002] The power battery pack needs to be electrically connected to external devices through a connector, and the connector needs to be arranged on the battery pack panel to achieve interconnection between systems. The connector in the prior art does not have a shielding structure that can ensure stable operation of the system, improve safety, and adapt to various environmental requirements.

[0003] Therefore, it is necessary to provide a battery pack panel and a connector assembly to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the present invention provides a panel assembly, comprising:

[0006] A panel body, wherein the panel body is provided with a first connection hole and a connection groove arranged around the first connection hole;

[0007] A shielding cover, the shielding cover is mounted on the panel body, the shielding cover is provided with a second connection hole corresponding to the first connection hole, and a spring sheet is provided around the second connection hole;

[0008] The spring sheet protrudes from the surface of the shielding cover, and the spring sheet can be received in the connecting groove under the action of external force.

[0009] According to the panel assembly provided in the first aspect of the present invention, by adding a shielding cover design with springs to replace the traditional die-cast plate, the impact of external interference on the connector can be effectively reduced, the stability of the system can be improved, and a stable and reliable connection with external devices can be ensured.

[0010] Optionally, a connecting groove is arranged around the first connecting hole; the elastic sheet is arranged to protrude from the surface of the shielding cover, and the elastic sheet can be accommodated in the connecting groove under the action of external force.

[0011] The spring protrudes from the shielding cover when there is no external force, and can be accommodated in the connection groove under the action of external force. The spring is deformed by pressure to ensure that the spring and the connector wire end shell can effectively contact when the board end connector and the wire end connector are connected. The entire assembly has a compact structure, which saves space while increasing shielding performance.

[0012] Optionally, the shielding cover has a first surface and a second surface that are arranged opposite to each other, the first surface is arranged toward the panel body, and the elastic sheet protrudes from the second surface of the shielding cover.

[0013] Optionally, the spring sheet is provided in plurality, and the connecting groove is provided in plurality; wherein,

[0014] The number of the spring sheets is greater than or equal to the number of the connecting grooves.

[0015] Optionally, the shielding cover is detachably connected to the panel body.

[0016] Optionally, the panel body is made of plastic; and / or

[0017] The shielding cover is made of metal.

[0018] A second aspect of the utility model provides a connector assembly, comprising the above-mentioned panel assembly and a connector, wherein the connector is connected to the panel assembly.

[0019] According to the connector assembly provided in the second aspect of the utility model, the panel assembly provides a reliable interface and plug-in and pull-out functions, making the electrical connection between the battery pack and the external device more convenient and reliable. Since the panel assembly has a shielding cover, it can effectively block external electromagnetics; the arrangement of the spring clips in the shielding cover ensures good contact with the external structure.

[0020] Optionally, a board-end connector is further included, at least part of which extends to the first connection hole and the second connection hole, wherein:

[0021] The board connector is connected to the panel assembly, or

[0022] The board-end connector is integrally formed with the panel assembly.

[0023] Optionally, the board-end connector includes at least one of a low-voltage connector, an AC connector, a three-phase connector, and a DC charging connector.

[0024] Optionally, the board-end connector includes a low-voltage connector, and the low-voltage connector includes:

[0025] a housing having a first end and a second end opposite each other, the first end being connected to the panel assembly;

[0026] a circuit board, the circuit board being disposed at the second end portion, the circuit board being used to be connected to an onboard connector;

[0027] A terminal extends from the first end to the second end and is electrically connected to the circuit board.

[0028] Optionally, the circuit board is arranged on the outer periphery of the shell, and the terminal is arranged inside the shell;

[0029] The portion of the terminal located at the second end is in a bent structure.

[0030] Optionally, it further comprises a line end connector, the line end connector is used to be plugged with the board end connector, and the line end connector can be electrically connected to the board end connector; wherein,

[0031] When the line-end connector is plugged into the board-end connector, the line-end connector presses the spring sheet into the connection groove.

[0032] Optionally, a breathable valve and / or an explosion-proof valve is further included, wherein the breathable valve and / or the explosion-proof valve is connected to the panel assembly, and at least part of the breathable valve and / or the explosion-proof valve extends to the first connecting hole and the second connecting hole.

[0033] A third aspect of the utility model provides a battery pack, comprising a battery pack body and the above-mentioned connector assembly, wherein the panel assembly is connected to the battery pack body by bolts.

[0034] According to the battery pack of the third aspect of the utility model, stable connection and electromagnetic shielding of the connector can be achieved.

[0035] Optionally, a sealing device is provided between the battery pack body and the connector assembly.

[0036] A fourth aspect of the utility model provides an electrical device, comprising the above-mentioned battery pack.

[0037] According to the electric device of the fourth aspect of the utility model, the battery pack ensures the power supply stability of the device during use, and the safety of the entire electric device is improved through the shielding cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0039] Figure 1A schematic front view of a battery pack, a connector assembly, and a panel assembly according to a preferred embodiment of the utility model;

[0040] Figure 2 It is an exploded three-dimensional schematic diagram of the battery pack, connector assembly, and panel assembly;

[0041] Figure 3 It is a schematic diagram of the exploded front view of the battery pack, connector assembly, and panel assembly;

[0042] Figure 4 A partial cross-sectional schematic diagram of the connection between the battery pack and the panel assembly;

[0043] Figure 5 It is a cross-sectional schematic diagram of the low voltage connector and the panel body;

[0044] Figure 6 A three-dimensional schematic diagram of a shielding cover.

[0045] Description of Reference Numerals

[0046] 10: Panel components

[0047] 110: Panel body

[0048] 111: First connection hole

[0049] 112: Connection slot

[0050] 113: First Surface

[0051] 114: Second Surface

[0052] 120: Shielding cover

[0053] 121: Second connection hole

[0054] 122: Shrapnel

[0055] 20: Bolt

[0056] 31: Low voltage connector

[0057] 311: Shell

[0058] 312: Circuit Board

[0059] 313: Terminal

[0060] 314: Onboard connector

[0061] 32: AC connector

[0062] 33: Three-phase connector

[0063] 34: DC charging connector

[0064] 35: Breathing valve

[0065] 40: Wire end connector

[0066] 50: Battery pack body

[0067] 51: Cable

[0068] 60: Sealing device DETAILED DESCRIPTION

[0069] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0070] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0071] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0072] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0073] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0074] Now, exemplary embodiments according to the present utility model will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0075] The battery pack needs to be electrically connected to an external device through a connector. The connector includes a board-side connector and a line-side connector 40. The board-side connector and the line-side connector 40 are plug-connected, and the board-side connector and the line-side connector 40 are electrically connected, thereby realizing signal, data and power transmission from the inside to the outside of the battery pack.

[0076] The board connector is used to connect the battery modules inside the battery pack. The board connector is usually located inside the battery pack and is used to electrically connect different battery modules or battery boards. The board connector usually has multiple pins for transmitting current, signals and data.

[0077] The line end connector 40 is an interface for electrically connecting the battery pack to an external device. The line end connector 40 is usually located outside the battery pack and is connected to the external device through a wire or a wiring harness. The line end connector 40 usually has two parts, a plug and a socket. One side of the plug is fixed to the external device, and the other side of the socket is fixed to the battery pack. Electrical connection is achieved by plugging and unplugging.

[0078] Reference Figure 1-Figure 3 In the present invention, a panel assembly 10 is disposed on the battery pack body 50 , and a connector is connected to the panel assembly 10 .

[0079] Reference Figure 2-4 The panel assembly 10 includes a panel body 110 and a shielding cover 120. The panel body 110 is provided with a first connection hole 111 and a connection groove 112 arranged around the first connection hole 111. The shielding cover 120 is provided with a second connection hole 121 and a spring 122 arranged around the second connection hole 121. The shielding cover 120 is connected to the panel body 110, the second connection hole 121 corresponds to the first connection hole 111, and the spring 122 corresponds to the connection groove 112. The spring 122 protrudes from the surface of the shielding cover 120, and the spring 122 can be accommodated in the connection groove 112 under the action of external force. In the present invention, the panel assembly 10 is fixed to the battery pack body 50, the first connection hole 111 and the second connection hole 121 are used to connect the board-end connector, and the board-end connector is provided with a connector portion with pins connected to the first connection hole 111 and the second connection hole 121, thereby extending to the outside of the battery pack body 50; the line-end connector 40 is plugged and connected to the board-end connector, thereby realizing the connection between the battery pack body 50 and the external device. When the line-end connector 40 is plugged into the board-end connector, the metal shell 311 of the line-end connector 40 abuts against the spring 122 to press the spring 122 into the connection groove 112.

[0080] In some embodiments of the present invention, the shielding cover 120 has a first surface 113 and a second surface 114 that are arranged opposite to each other, the first surface 113 is arranged toward the panel body 110, the spring piece 122 protrudes from the second surface 114 of the shielding cover 120, and the spring piece 122 can be received in the connecting groove 112 under the action of external force.

[0081] In the present invention, the spring sheet 122 protrudes from the second surface 114 of the shielding cover 120 when no external force is applied, and can be accommodated in the connection groove 112 under the action of external force. The spring sheet 122 is deformed by pressure to ensure that the spring sheet 122 and the connector wire end housing 311 can effectively contact when the board end connector and the wire end connector 40 are connected. The entire assembly structure is compact, which saves space while increasing the shielding performance.

[0082] In some embodiments of the present invention, at least a portion of the board connector extends to the first connection hole 111 and the second connection hole 121. During assembly, the board connector can be directly inserted into the panel assembly 10, thereby simplifying the installation process. The board connector and the panel assembly 10 are separated or integrally formed.

[0083] In some embodiments of the present invention, a plurality of spring sheets 122 are provided, and a plurality of connection slots 112 are provided. The number of spring sheets 122 is greater than or equal to the number of connection slots 112. It can be understood that one connection slot 112 can correspond to a plurality of spring sheets 122. With the provision of a plurality of spring sheets 122, a uniform shielding connection can be formed after the board-end connector and the line-end connector 40 are connected.

[0084] In some embodiments of the present invention, the shielding cover 120 is detachably connected to the panel body 110. Optionally, the shielding cover 120 and the panel body 110 are kept in relative position by interference fit through positioning pins.

[0085] In some embodiments of the present invention, the panel assembly 10 is detachably connected to the battery pack body 50. Optionally, the panel assembly 10 is connected to the battery pack body 50 by bolts 20. The bolts 20 are arranged along the circumference of the panel assembly 10, and the bolts 20 are in contact with the second surface 114 of the shielding cover 120. The shielding cover 120 forms a circle of uniform shielding connection with the battery pack body 50 through a circle of bolts 20.

[0086] In some embodiments of the present invention, a sealing device 60 may be provided between the panel assembly 10 and the battery pack body 50. The sealing device 60 may be a direct injection molding sealing ring assembled in the corresponding groove of the panel body 110; or an automatic glue spraying machine may be used to apply glue along the groove of the panel body 110, and then high-temperature curing is performed in an insulated box.

[0087] In some embodiments of the utility model, the panel body 110 is made of plastic. The plastic material has strong plasticity and is relatively light. It can reduce the weight of the entire panel assembly 10 and has low cost. The plastic material also has good insulation properties and good corrosion resistance. The shielding cover 120 is made of metal. Optionally, the shielding cover 120 uses a thin-walled metal plate. The thin-walled metal plate is preferably a stainless steel plate with a thickness of 0.2 mm. Stainless steel has good electromagnetic shielding properties and can effectively block the interference of external electromagnetic radiation on the internal circuits and equipment of the panel assembly 10, thereby improving the anti-interference ability of the system. Stainless steel also has excellent corrosion resistance. The stainless steel plate is directly exposed to the outside and does not need to be treated with anti-corrosion. Stainless steel + plating treatment is used in areas with high anti-corrosion requirements. Optionally, the shielding cover 120 is stamped and has a low thickness, light weight and low cost compared to the traditional connector metal mounting panel.

[0088] In some embodiments of the utility model, the number of the first connection holes 111 is set to be several. The number of the second connection holes 121 is set to be several. The first connection holes 111 correspond to the second connection holes 121. For connecting different board-end connectors. In this embodiment, all interfaces output by the battery pack body 50 are integrated and can realize assembly automation.

[0089] In some embodiments of the present invention, the board-end connector includes at least one of a low-voltage connector 31, an AC connector 32, a three-phase connector 33, a DC charging connector 34, a breathable valve 35, and an explosion-proof valve.

[0090] Based on the above embodiments, Figure 6 As shown, the shielding cover 120 reserves holes for the low-voltage connector 31, the AC connector 32, the three-phase connector 33, the DC charging connector 34, the vent valve 35, and the explosion-proof valve. That is, the six second connection holes 121 are respectively connected to the low-voltage connector 31, the AC connector 32, the three-phase connector 33, the DC charging connector 34, the vent valve 35, and the explosion-proof valve. The shielding cover 120 is provided with a spring 122 at the holes where the AC connector 32, the three-phase connector 33, and the DC charging connector 34 are located. The spring 122 can abut against the AC connector 32, the three-phase connector 33, and the DC charging connector 34.

[0091] In some embodiments of the present invention, the board-side connectors are all copper busbar structures, the copper busbar and the panel body 110 are injection molded as one, and the plug-in area between the line-end connector 40 and the board-side connector and the internal distribution copper busbar connection area of ​​the battery pack body 50 are exposed.

[0092] like Figure 5As shown, in some embodiments of the present invention, the low-voltage connector 31 includes a housing 311, a circuit board 312 and a terminal 313. The housing 311 has a first end and a second end opposite to each other, and the first end is connected to the panel assembly 10. The circuit board 312 is disposed at the second end, and the circuit board 312 is used to connect to the onboard connector 314. The terminal 313 extends from the first end to the second end, and the terminal 313 is electrically connected to the circuit board 312. The problem that the low-voltage flexible wiring harness terminal 313 of the traditional wiring harness is crimped and inserted into the connector is solved, which is time-consuming and labor-intensive, requires a lot of manpower, and has low production efficiency.

[0093] In the above embodiment, the circuit board 312 and the onboard connector 314 are connected in a plug-in manner and then wave soldered. The terminal 313 is welded to the circuit board 312. The flat cable 51 in the battery pack body 50 is electrically connected to the low voltage connector 31.

[0094] In some embodiments of the present invention, the circuit board 312 is disposed on the outer periphery of the housing 311, and the terminal 313 is disposed inside the housing 311; the portion of the terminal 313 located at the second end is a bent structure. Optionally, the terminal 313 is bent at 90 degrees.

[0095] In some embodiments of the present invention, a sealing structure is designed on the housing 311 to cooperate with the first connection hole 111 of the panel body 110 to form an end face or radial seal. The low-pressure connector 31 can be finally fastened to the panel assembly 10 by bolts 20 .

[0096] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0097] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A panel assembly, characterized in that: include: A panel body, wherein the panel body is provided with a first connecting hole for installing a board-end connector; A shielding cover is mounted on the panel body, the shielding cover is provided with a second connection hole corresponding to the first connection hole, and a spring sheet is provided around the second connection hole.

2. The panel assembly according to claim 1, characterized in that: A connection groove is arranged around the first connection hole; The spring piece is arranged to protrude from the surface of the shielding cover, and the spring piece can be received in the connecting groove under the action of external force.

3. The panel assembly according to claim 2, characterized in that: The shielding cover has a first surface and a second surface which are arranged opposite to each other. The first surface is arranged toward the panel body, and the elastic sheet protrudes from the second surface of the shielding cover.

4. The panel assembly according to claim 2, characterized in that: The spring sheet is provided in plurality, and the connecting groove is provided in plurality; wherein, The number of the spring sheets is greater than or equal to the number of the connecting grooves.

5. The panel assembly according to any one of claims 1 to 4, characterized in that: The shielding cover is detachably connected to the panel body.

6. The panel assembly according to any one of claims 1 to 4, characterized in that: The panel body is made of plastic; and / or The shielding cover is made of metal.

7. A connector assembly, characterized in that: include: The panel assembly according to any one of claims 1 to 6; A connector is connected to the panel assembly.

8. The connector assembly according to claim 7, characterized in that: The connector comprises a board-end connector, at least a portion of which extends to the first connection hole and the second connection hole, wherein: The board connector is connected to the panel assembly, or The board-end connector is integrally formed with the panel assembly.

9. The connector assembly according to claim 8, characterized in that: The board-end connector includes at least one of a low-voltage connector, an AC connector, a three-phase connector, and a DC charging connector.

10. The connector assembly according to claim 8, characterized in that The board-end connector includes a low-voltage connector, and the low-voltage connector includes: a housing having a first end and a second end opposite each other, the first end being connected to the panel assembly; a circuit board, the circuit board being disposed at the second end portion, the circuit board being used to be connected to an onboard connector; A terminal extends from the first end to the second end and is electrically connected to the circuit board.

11. The connector assembly according to claim 10, characterized in that The circuit board is arranged on the outer periphery of the shell, and the terminal is arranged inside the shell; The portion of the terminal located at the second end is in a bent structure.

12. The connector assembly according to claim 8, wherein: The connector further includes a line end connector, which is used to be plugged into the board end connector, and the line end connector can be electrically connected to the board end connector; wherein, When the line-end connector is plugged into the board-end connector, the line-end connector presses the spring sheet into the connection groove.

13. The connector assembly according to claim 7, wherein: It also includes a breathable valve and / or an explosion-proof valve, which are connected to the panel assembly, and at least part of the breathable valve and / or the explosion-proof valve extends to the first connecting hole and the second connecting hole.

14. A battery pack, characterized in that: It comprises a battery pack body and a connector assembly according to any one of claims 7 to 13, wherein the panel assembly is connected to the battery pack body by bolts.

15. The battery pack according to claim 14, characterized in that: A sealing device is provided between the battery pack body and the connector assembly.

16. An electrical equipment, characterized in that: Comprising a battery pack according to claim 14 or 15.

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