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JP-2026076093-A - Combination of wireless communication module and base circuit board, lock unit and wireless communication module

JP2026076093AJP 2026076093 AJP2026076093 AJP 2026076093AJP-2026076093-A

Abstract

[Problem] To provide a combination of a wireless communication module and a base circuit board that allows for easy modification of the wireless communication method. [Solution] A combination of a wireless communication module and a base circuit board to which the wireless communication module is mounted. The wireless communication module includes a circuit board, a wireless communication interface provided on a first surface of the circuit board, and an antenna provided on a second surface of the circuit board opposite to the first surface and used in the wireless communication performed by the wireless communication interface. A portion of the base circuit board is a mounting area that overlaps with at least a portion of the circuit board when the wireless communication module is mounted on the base circuit board. [Selection Diagram] Figure 7

Inventors

  • 仲江川 弘毅
  • 鈴木 健
  • 渡邉 竜矢
  • 河添 純正
  • ▲高▼久 太
  • 伊藤 哲也

Assignees

  • ミネベアミツミ株式会社

Dates

Publication Date
20260511
Application Date
20250205
Priority Date
20241023

Claims (13)

  1. A combination of a wireless communication module and a base circuit board on which the wireless communication module is mounted, The aforementioned wireless communication module is Circuit board and A wireless communication interface provided on the first surface of the circuit board, The circuit board has an antenna provided on a second surface opposite to the first surface and used in the wireless communication performed by the wireless communication interface, A combination in which a portion of the base circuit board is a mounting area that overlaps with at least a portion of the circuit board when the wireless communication module is attached to the base circuit board.
  2. The combination according to claim 1, wherein the mounting area overlaps with the entire circuit board when the wireless communication module is mounted on the base circuit board.
  3. The combination according to claim 1 or 2, wherein, in the mounting area, when the wireless communication module is mounted on the base circuit board, no circuit elements protruding from that surface are provided on the surface facing the circuit board.
  4. The combination according to any one of claims 1 to 3, wherein the base circuit board is configured such that, when viewed in the thickness direction of the base circuit board with the wireless communication module attached to it, the conductor and semiconductor are not located at the position where the antenna exists.
  5. The combination according to any one of claims 1 to 3, wherein the base circuit board is configured such that, when viewed in the thickness direction of the base circuit board with the wireless communication module attached to it, the base circuit board is not present at the location where the antenna is located.
  6. The combination according to any one of claims 1 to 5, wherein the end face of the circuit board is provided with a module-side mounting portion for attaching the wireless communication module to the base circuit board.
  7. The combination according to claim 6, wherein the module-side mounting portion does not overlap with the antenna when viewed in one direction extending within the plane of the second surface of the circuit board, and does not overlap with the antenna when viewed in an orthogonal direction that extends within the plane of the second surface and is perpendicular to the aforementioned one direction.
  8. The combination according to any one of claims 1 to 7, wherein a base-side mounting portion for attaching the wireless communication module to the base circuit board is provided on the outer edge of the mounting area of the base circuit board.
  9. The end face of the circuit board is provided with a module-side mounting portion for attaching the wireless communication module to the base circuit board. A base-side mounting portion for attaching the wireless communication module to the base circuit board is provided on the outer edge of the mounting area of the base circuit board. The combination according to any one of claims 1 to 5, wherein the module-side mounting portion and the base-side mounting portion are configured such that the wireless communication module is fixed to the base circuit board and an electrical connection is made between the wireless communication module and the base circuit board by mounting the wireless communication module to the base circuit board via the module-side mounting portion and the base-side mounting portion.
  10. The combination according to claim 9, wherein the module-side mounting portion and the base-side mounting portion are connected by solder.
  11. The combination according to any one of claims 1 to 10, wherein the wireless communication module is configured to communicate using the UWB method.
  12. The combination according to any one of claims 1 to 11, wherein the wireless communication module is mounted on the base circuit board, A lock unit comprising an actuator module that performs locking and unlocking operations based on wireless communication via the aforementioned combination.
  13. A wireless communication module that is mounted on a base circuit board, Circuit board and A wireless communication interface provided on the first surface of the circuit board, An antenna provided on the second surface of the circuit board opposite to the first surface and used in the wireless communication performed by the wireless communication interface, A wireless communication module comprising a mounting portion provided on the side surface of the circuit board, wherein the wireless communication module is mounted to the base circuit board by overlapping at least a part of the circuit board with the base circuit board.

Description

This disclosure relates to a combination of a wireless communication module and a base circuit board, a lock unit, and a wireless communication module. Electrical appliances are being operated wirelessly via mobile devices (such as smartphones). Examples of electrical appliances operated wirelessly include home appliances such as televisions, air conditioners, and lighting fixtures, as well as electronic locks installed on vehicle doors and house doors. Patent Document 1 discloses an electronic locking device comprising a coupling means for connecting a thumbturn and a driving means for rotating a lock on a door in the unlocking or locking direction, a driving means for rotating the thumbturn in the unlocking and locking directions using the coupling means, a control means for operating the driving means provided on the back surface of the door, an instruction means for the control means provided on the door, and an electronic locking device in which the thumbturn is rotated by the driving means through the coupling means based on information from the instruction means. Japanese Patent Publication No. 2007-198062 Figure 1 is a side view showing a lock system, which is one embodiment of the system, attached to a door.Figure 2(a) is an exploded perspective view showing an example of an outdoor unit. Figure 2(b) is an exploded perspective view showing an example of an indoor unit.Figure 3 is a plan view showing an example of a lock unit.Figure 4(a) is a side view showing an example of an actuator module. Figure 4(b) is a front view showing an example of an actuator module. Figure 4(c) is a rear view showing an example of an actuator module.Figure 5 is a block diagram showing an example of the configuration of a lock system.Figure 6 is a plan view showing an example of the arrangement of the circuit board, motor, power transmission unit, and sensor group in an actuator module.Figure 7 is an exploded perspective view showing an example of a wireless communication module.Figure 8 is a perspective view showing an example of a wireless communication module.Figure 9(a) is a top view of the wireless communication submodule included in the wireless communication module shown in Figures 7 and 8. Figure 9(b) is a bottom view of the wireless communication submodule included in the wireless communication module shown in Figures 7 and 8.Figure 10 is a bottom view of the circuit board of the control submodule included in the wireless communication module shown in Figures 7 and 8.Figure 11 is a plan view showing an example of a circuit board to which a wireless communication submodule is to be mounted. <Implementation> A lock system 100 (Figure 1), which is one embodiment of the present disclosure, will be described as an example of how the lock system 100 is used when attached to a door 1000 (Figure 1), with reference to Figures 1 to 10. [Structure of Door 1000] A door 1000, which is locked and unlocked by a locking system 100, will now be described. As shown in Figures 2(a) and 2(b), the door 1000 mainly consists of a door body 1000M, a deadbolt 1000B provided on the side of the door body 1000M, and a deadbolt moving mechanism BM for moving the deadbolt 1000B. An opening OP 1000 is provided on the interior surface S IN (Figure 2(b)) of the door body 1000M. Inside the opening OP 1000 is a deadbolt moving mechanism BM, which is located inside the door body 1000M. The deadbolt moving mechanism BM is a mechanism that moves the deadbolt 1000B between a protruding state in which the tip of the deadbolt 1000B protrudes from the side surface of the door body 1000M (as shown in Figures 2(a) and 2(b)) and a retracted state in which the tip of the deadbolt 1000B is flush with the side surface of the door body 1000M. The deadbolt 1000B and the deadbolt moving mechanism BM constitute an example of the "lock" of this disclosure. In this embodiment, when the deadbolt 1000B is in the protruding position, the door 1000 is locked. Also, in this embodiment, when the deadbolt 1000B is in the retracted position, the door 1000 is unlocked. The door body 1000M is provided with a through hole th 1000 that extends between the interior surface S IN and the exterior surface S OUT of the door body 1000M. [Structure of the locking system 100] As shown in Figure 1, the locking system 100 includes an indoor unit 100 IN attached to the interior surface S IN of the door body 1000M, and an outdoor unit 100 OUT attached to the exterior surface S OUT of the door body 1000M. The indoor unit 100 IN , the outdoor unit 100 OUT , the deadbolt 1000B, and the deadbolt moving mechanism BM cooperate to function as the locking mechanism of the door 1000. As shown in Figure 2(b), the indoor unit 100 IN mainly comprises a base 10, a lock unit 20, and a cover 30. As shown in Figure 2(a), the outdoor unit 100 OUT mainly comprises a base 40, a circuit board 50 (equipped with a controller 51; details will be described later), and a cover 60. For the sake of explanation, the