Wireless communication-enabled cell monitoring circuit, and battery module equipped therewith.

Abstract

The present invention provides a top plate assembly for a battery module, the top plate assembly including a cell monitoring circuit capable of wirelessly communicating with a master-level battery control circuit, and a battery module including the top plate assembly. The top plate assembly includes a metal top plate; a substrate receiving hole provided in a portion of the top plate; a substrate received in the substrate receiving hole; a wireless communication antenna mounted on the substrate; and a non-metallic housing that receives the substrate and secures it to the top plate. The substrate receiving hole has a noise prevention groove cut into the metal top plate to ensure a predetermined distance from the wireless communication antenna. The housing includes a lower housing made of a resin material on the bottom surface of the top plate that supports a lower portion of the substrate, and an upper housing made of a resin material on the top surface of the top plate that covers the substrate and the substrate receiving hole.

Claims

1. A top plate assembly that covers the top of the battery module, Metal top plate; A substrate housing hole provided in a portion of the top plate; A substrate to be housed in the aforementioned substrate housing hole; Wireless communication antenna mounted on the aforementioned substrate; and A housing made of a non-metallic material that accommodates the substrate and fixes it to the top plate; The wireless communication antenna is mounted closest to the first portion of the outer edge of the substrate. The aforementioned substrate housing hole is The top plate of the metal material is provided with a noise suppression groove cut out to ensure a predetermined isolation distance from the wireless communication antenna; Top plate assembly.

2. The substrate housing hole is located in the center of the top plate, The top plate assembly according to claim 1.

3. The noise suppression groove is defined by a portion of the inner edge of the top plate defined by the substrate housing hole, where the second portion adjacent to the first portion is recessed so as to be further separated from the outer edge of the substrate. The top plate assembly according to claim 1.

4. The shape of the outer edge of the substrate and the shape of the inner edge of the top plate defined by the substrate housing hole are substantially corresponding, The noise suppression groove is defined by a portion of the inner edge of the top plate that is recessed so as to be further separated from the corresponding outer edge of the substrate. The top plate assembly according to claim 1.

5. The isolation distance is 10 mm or more. The top plate assembly according to claim 1.

6. The aforementioned housing is A lower housing made of resin material that supports the lower part of the substrate at the bottom surface of the top plate; and The upper housing of a resin material covering the substrate and the substrate housing hole on the upper surface of the top plate; The top plate assembly according to claim 1.

7. The lower housing covers the lower part of the noise suppression groove, The upper housing covers the upper part of the noise suppression groove. The top plate assembly according to claim 6.

8. The aforementioned lower housing is Base member; and Includes an inner wall member extending upward from the base member and penetrating the top plate through the substrate housing hole; The substrate is housed in the space provided inside the inner wall member of the base member. The top plate assembly according to claim 6.

9. At least a portion of the outer part of the base member provided on the outside of the inner wall member is fixed to the bottom surface of the top plate, and the outer part covers the lower part of the noise suppression groove. The top plate assembly according to claim 8.

10. The base member is provided with an internal snap fit that extends upward from the base member. The locking shape provided at the upper end of the internal snap fit protrudes inward from the inner wall member, The internal snap fit elastically fastens to the outer edge of the substrate. The top plate assembly according to claim 8.

11. The base member is provided with an external snap fit that extends upward from the base member. The locking shape provided at the upper end of the external snap fit protrudes outward from the inner wall member, The external snap-fit ​​elastically fastens to the inner edge of the top plate as defined by the substrate housing hole. The top plate assembly according to claim 8.

12. A top plate assembly that covers the upper part of a battery module, Metal top plate; A substrate housing hole provided in a portion of the top plate; A substrate to be housed in the aforementioned substrate housing hole; Wireless communication antenna mounted on the aforementioned substrate; and A housing made of a non-metallic material that accommodates the substrate and fixes it to the top plate; The aforementioned substrate housing hole is The top plate of the metal material is provided with a noise-preventing groove cut out to ensure a predetermined isolation distance from the wireless communication antenna; A board connector is mounted on the edge of the aforementioned board, which is connected to a sensor for measuring the temperature of the battery module. A connector housing groove is provided in the inner edge of the top plate, defined by the substrate housing hole, in a portion corresponding to the edge portion of the substrate on which the substrate connector is mounted, by cutting out the top plate. Top plate assembly.

13. A top cable connecting the circuit board connector and the sensor is attached to the bottom surface of the top plate. The top cable includes an fPCB cable positioned to avoid the housing. The top plate assembly according to claim 12.

14. The aforementioned housing is A lower housing made of resin material that supports the lower part of the substrate at the bottom surface of the top plate; and The upper housing of a resin material covering the substrate and the substrate housing hole on the upper surface of the top plate; A groove for exposing the connector housing groove is provided in the portion of the lower housing corresponding to the connector housing groove. The upper housing covers the upper part of the connector housing groove. The top plate assembly according to claim 12.

15. The aforementioned lower housing is Base member; and Includes an inner wall member extending upward from the base member and penetrating the top plate through the substrate housing hole; The aforementioned exposed groove is a form in which the base member and a part of the inner wall member have been removed. The top plate assembly according to claim 14.

16. A top plate assembly that covers the upper part of a battery module, Metal top plate; A substrate housing hole provided in a portion of the top plate; A substrate to be housed in the aforementioned substrate housing hole; A wireless communication antenna mounted on the aforementioned circuit board; and A housing made of a non-metallic material that accommodates the substrate and fixes it to the top plate; The aforementioned substrate housing hole is The top plate of the metal material is provided with a noise-preventing groove cut out to ensure a predetermined isolation distance from the wireless communication antenna; The aforementioned housing is A lower housing made of resin material that supports the lower part of the substrate at the bottom surface of the top plate; and The upper housing of a resin material covering the substrate and the substrate housing hole on the upper surface of the top plate; The aforementioned lower housing is Base member; and Includes an inner wall member extending upward from the base member and penetrating the top plate through the substrate housing hole; The substrate is housed in the space provided inside the inner wall member of the base member. The aforementioned upper housing is Mounting member attached to the upper surface of the top plate; An outer wall member extending upward from the inner portion of the mounting member and surrounding the inner wall member of the lower housing; and A cover member connected to the upper part of the outer wall member and covering the substrate and the substrate housing hole; Top plate assembly.

17. A downward step is formed at the lower part of the outer edge of the mounting member. The top plate assembly according to claim 16.

18. The outer wall member is positioned outside the inner wall member. The top plate assembly according to claim 16.

19. The fastening member penetrates the mounting member and the top plate and is fixed to the outer portion of the base member that is located outside the inner wall member. The top plate assembly according to claim 16.

20. A top plate assembly that covers the top of the battery module, Metal top plate; A substrate housing hole provided in a portion of the top plate; A substrate to be housed in the aforementioned substrate housing hole; A wireless communication antenna mounted on the aforementioned circuit board; and A housing made of a non-metallic material that accommodates the substrate and fixes it to the top plate; The aforementioned substrate housing hole is The top plate of the metal material is provided with a noise-preventing groove cut out to ensure a predetermined isolation distance from the wireless communication antenna; The aforementioned housing is A lower housing made of resin material that supports the lower part of the substrate at the bottom surface of the top plate; and The upper housing of a resin material covering the substrate and the substrate housing hole on the upper surface of the top plate; The aforementioned lower housing is Base member; and Includes an inner wall member extending upward from the base member and penetrating the top plate through the substrate housing hole; The inner wall member protrudes above the upper surface of the top plate, The substrate is housed in the space provided inside the inner wall member of the base member. Top plate assembly.

21. The base member is provided with an internal snap fit that extends upward from the base member. The locking shape provided at the upper end of the internal snap fit protrudes inward from the inner wall member, The internal snap fit elastically fastens to the outer edge of the substrate. The top plate assembly according to claim 20.

22. The base member is provided with an external snap fit that extends upward from the base member. The locking shape provided at the upper end of the external snap fit protrudes outward from the inner wall member, The external snap-fit ​​elastically fastens to the inner edge of the top plate as defined by the substrate housing hole. The top plate assembly according to claim 20.

23. At least a portion of the outer part of the base member of the lower housing, which is located outside the inner wall member, is in contact with the bottom surface of the top plate. The top plate assembly according to claim 22.

24. The aforementioned upper housing is Mounting member attached to the upper surface of the top plate; An outer wall member extending upward from the inner portion of the mounting member and surrounding the inner wall member of the lower housing; and A cover member connected to the upper part of the outer wall member and covering the upper part of the substrate; The top plate assembly according to claim 20.

25. A downward step is formed at the lower part of the outer edge of the mounting member. The top plate assembly according to claim 24.

26. The outer wall member is positioned outside the inner wall member. The top plate assembly according to claim 24.

27. The fastening member penetrates the mounting member and the top plate and is fixed to the outer portion of the base member that is located outside the inner wall member. The top plate assembly according to claim 24.

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