SENSOR UNIT, ELECTRONIC APPARATUS AND VEHICLE

• US 20200132459A1
• Filed: 10/29/2019
• Published: 04/30/2020
• Est. Priority Date: 10/29/2018
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: JIN, Mikimoto, Motoyama, Hisao
• Granted Patent: US 11,073,394 B2
• Time in Patent Office: Days
• CPC Class Codes: G01C 19/5783 Mountings or housings not specific to any of the devices covered by groups G01C19/5607 - G01C19/5719

Abstract

A sensor unit includes a sensor module and a case having a storage space for storing the sensor module. In addition, the sensor module also includes an inertial sensor and a package for storing the inertial sensor. In addition, the package also includes a bottom surface and a side surface connected to the bottom surface. In addition, the case includes a bottom portion on which a protrusion is disposed, in which the protrusion protrudes into the storage space and includes a mounting surface for the bottom surface of the sensor module to be mounted, and an abutment portion having an abutment surface that abuts the side surface of the sensor module. Further, in plan view of the bottom portion, a separation distance between the abutment surface and the protrusion is longer than a separation distance between the abutment surface and the inertial sensor.

Claims

1. A sensor unit comprising:

a sensor module including an inertial sensor and a package for storing the inertial sensor; and

a case including a storage space for storing the sensor module,

wherein the package includes

a bottom surface, and

a side surface connected to the bottom surface, and

the case includes

a bottom portion on which a protrusion is disposed, the protrusion protruding into the storage space and including a mounting surface on which the bottom surface of the sensor module is placed, and

an abutment portion having an abutment surface abutting on the side surface of the sensor module,

in plan view of the bottom portion, a separation distance between the abutment surface and the protrusion is longer than a separation distance between the abutment surface and the inertial sensor.

2. The sensor unit according to claim 1,

wherein an angle between the mounting surface and the abutment surface is 90°

.

3. The sensor unit according to claim 1,

wherein the inertial sensor includes a plurality of inertial sensor elements, and

a measurement axis of at least one of the inertial sensor elements is orthogonal to the mounting surface.

4. The sensor unit according to claim 1,

wherein the inertial sensor includes a plurality of inertial sensor elements, and

a measurement axis of at least one of the inertial sensor elements is orthogonal to the abutment surface.

5. The sensor unit according to claim 1,

wherein, in plan view of the bottom portion,

the protrusion is located outside a region extending from the abutment surface in a normal direction of the abutment surface.

6. The sensor unit according to claim 1,

wherein the mounting surface is a cutting surface.

7. The sensor unit according to claim 1,

wherein the abutment surface is a cutting surface.

8. The sensor unit according to claim 1,

wherein the case is provided with a protruding portion including an object abutment surface to be abutted on an object and protruding to the outside of the storage space.

9. The sensor unit according to claim 8,

wherein the object abutment surface is parallel to the abutment surface.

10. The sensor unit according to claim 8,

wherein the object abutment surface is a cutting surface.

11. The sensor unit according to claim 8,

wherein, in plan view of the bottom portion,

the protrusion is located inside a region of the object abutment surface, extending in the normal direction.

12. The sensor unit according to claim 1,

wherein the case includes

a conductive base part,

an insulating coating layer covering the base part, and

a conductive member penetrating the coating layer and electrically connected to the base part.

13. An electronic apparatus comprising the sensor unit according to claim 1.

14. A vehicle comprising the sensor unit according to claim 1.