Sensor device

Abstract

To provide a sensor device which allows a sensor to be accurately attached to an attachment target member.SOLUTION: A sensor device comprises a sensor and an attachment target member for having the sensor attached thereon, the attachment target member comprising a metal plate for having the sensor mounted thereon and a resin portion for pressingly sandwiching the sensor between itself and the metal plate. The metal plate is configured to have a flange portion of the sensor mounted thereon and the resin portion pressingly sandwiches the flange portion between itself and the metal sheet.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a sensor device in which a sensor such as a pressure sensor is attached to a member to be attached.

Background Art

[0002] Conventionally, a sensor device having a configuration in which a sensor is attached to a member to be attached is known.

[0003] For example, Patent Document 1 discloses a pressure sensor attached to a member to be attached. In Patent Document 1, in a state where the pressure sensor is assembled to the member to be attached, a protruding piece portion of the lid of the pressure sensor contacts the bottom surface of the large-diameter portion of the member to be attached over a predetermined length from the outer peripheral end. Then, by pressing the caulked portion of the member to be attached with a punch and caulking the protruding piece portion to the large-diameter portion, the pressure sensor is attached to the member to be attached.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in Patent Document 1, since the lid of the sensor is sandwiched by the member to be attached formed of a resin material, the attachment accuracy of the sensor to the member to be attached is reduced.

[0006] An object of the present invention is to provide a sensor device capable of accurately attaching a sensor to a member to be attached.

Means for Solving the Problems

[0007] The sensor device according to the present invention includes a sensor and a member to be attached to which the sensor is attached. The member to be attached includes a sheet metal on which the sensor is placed and a resin portion that presses and clamps the sensor between the sheet metal.

Effect of the Invention

[0008] According to the present invention, the sensor can be accurately attached to the member to be attached.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0010] Hereinafter, with reference to the drawings, a sensor device according to an embodiment of the present invention will be described. Note that the scope of the present invention is not limited to the following embodiments and can be arbitrarily changed within the scope of the technical idea of the present invention. In the following drawings, in order to make each configuration easier to understand, the scale and number, etc. of each structure may be different from those in the actual structure.

[0011] <Configuration of the Sensor Device> The configuration of the sensor device 1 according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 5.

[0012] The sensor device 1 includes a sensor 10, a sheet metal 20, a connector part 30, a wiring part 40, a case 50, and a cover 60.

[0013] The sensor 10 includes a main body part 11, a terminal part 12, a flange part 13, and a protruding part 14, and here, a pressure sensor is exemplified.

[0014] The main body part 11 is circular when viewed from above (above in FIG. 5) and includes a detection part (not shown) inside.

[0015] The terminal part 12 is formed of a conductive material and is electrically connected to the detection part of the main body part 11. The terminal part 12 extends from the main body part 11 and is connected to the wiring part 40 by soldering or the like. The terminal part 12 outputs a signal corresponding to the detection result in the detection part to the wiring part 40.

[0016] The flange part 13 is provided along the peripheral edge of the main body part 11 and protrudes outward from the main body part 11.

[0017] The protruding part 14 protrudes outward from the flange part 13 and engages with the engaging part 58 of the case 50 (see FIG. 2).

[0018] The sheet metal 20 is integrally provided on the case 50 by integral molding and includes an insertion hole 21 and a pressing part 22.

[0019] The insertion hole 21 penetrates in the thickness direction of the sheet metal 20 and, as shown in FIG. 4, a part of the sensor 10 is inserted therethrough.

[0020] The pressing part 22 is formed at the peripheral edge of the insertion hole 21 and is exposed in the insertion hole 57 of the case 50. The flange part 13 of the sensor 10 is placed on the pressing part 22 in the state shown in FIG. 4 with the case 50 and the cover 60 reversed up and down.

[0021] The connector part 30 is connected to the conductive terminals of a mating connector (not shown) and includes a connection terminal part (not shown) that is connected to the wiring part 40. The housing of the connector part 30 is integrally provided in the case 50.

[0022] The wiring part 40 is integrally provided in the case 50 by integral molding. One end of the wiring part 40 is connected to the connection terminal part of the connector part 30, and the other end is connected to the terminal part 12 of the sensor 10.

[0023] The case 50 is formed of resin and includes a mounting part 51, an opening part 55, a clamping part 56, an insertion hole 57, and an engaging part 58.

[0024] The mounting part 51 houses and fixes the flange part 62 of the cover 60. Specifically, the mounting part 51 is composed of a base part 52, an inner protruding part 53, and an outer protruding part 54.

[0025] The base part 52 presses and clamps the flange part 62 between it and the outer protruding part 54.

[0026] The inner protruding part 53 is composed of a plate material, stands up from the base part 52, and is located inside the flange part 62. Here, the inside means the inside with respect to the center when the sensor device 1 is viewed from above (above in FIG. 3).

[0027] The outer protruding part 54 is composed of a plate material, stands up from the base part 52, and is located outside the flange part 62. Here, the outside means the outside with respect to the center when the sensor device 1 is viewed from above. The tip side of the outer protruding part 54 in the standing direction (upward in FIG. 3) extends to the upper part of the flange part 62 by caulking.

[0028] The opening part 55 opens upward.

[0029] Clamping portion 56 extends below flange portion 13 of sensor 10 (downward in FIG. 3) by crimping, and presses and clamps flange portion 13 together with pressing portion 22. A plurality of clamping portions 56 are provided around insertion hole 57 at intervals from each other.

[0030] The plurality of clamping portions 56 that press and hold one flange portion 13 of adjacent sensors 10 are disposed between the plurality of clamping portions 56 that press and hold the other flange portion 13 of adjacent sensors 10. Specifically, as shown in Fig. 2, the clamping portions 56 are disposed such that the width R2 of the clamping portion 56 that press and hold the other flange portion 13 is included within the range of the interval R1 between the plurality of clamping portions 56 that press and hold one flange portion 13.

[0031] The insertion hole 57 communicates with the insertion hole 21 and has a larger diameter than the insertion hole 21. The sensor 10 is inserted into the insertion hole 57.

[0032] The engaging portion 58 is in communication with the insertion hole 57 and is recessed from the periphery of the insertion hole 57 . The engaging portion 58 is recessed and extends outward in a direction parallel to the radial direction. The engaging portion 58 engages with the protruding portion 14 of the sensor 10 to position the sensor 10 relative to the case 50.

[0033] The cover 60 is made of resin and includes a covering portion 61 and a flange portion 62 .

[0034] The covering portion 61 covers the opening 55 of the case 50 .

[0035] The flange portion 62 is bent vertically downward from the end of the covering portion 61 (downward in FIG. 3).

[0036] In the sensor device 1 having the above configuration, the metal plate 20 having the pressing portion 22 and the case 50 as a resin portion having the clamping portion 56 constitute a mounting member to which the flange portion 13 of the sensor 10 is mounted. As shown in FIG. 4, the flange portion 13 is pressed and clamped by the pressing portion 22 and the clamping portion 56.

[0037] <Method for manufacturing a sensor device> A method for manufacturing a sensor device 1 according to an embodiment of the present invention will be described in detail with reference to FIG. 6.

[0038] First, a molded product is formed by integrally molding a sheet metal 20, a connector portion 30, a wiring portion 40, and a case 50.

[0039] Next, with the case 50 positioned above the sheet metal 20 as shown in FIG. 4, while aligning the protruding portion 14 of the sensor 10 with the engaging portion 58 of the case 50, the terminal portion 12 of the sensor 10 is inserted into the insertion hole 57 of the case 50, and the main body portion 11 of the sensor 10 is inserted into the insertion hole 57 of the case 50. As a result, the protruding portion 14 and the engaging portion 58 engage with each other, enabling the sensor 10 to be positioned with respect to the case 50, and the flange portion 13 of the sensor 10 is placed on the pressing portion 22 of the sheet metal 20.

[0040] Next, the clamping portion 56 of the case 50 is positioned above the flange portion 13 of the sensor 10 in FIG. 4 by caulking, and the flange portion 13 is pressed and clamped by the clamping portion 56 and the pressing portion 22 of the sheet metal 20. As a result, the sensor 10 can be attached to the molded product. At this time, by pressing and clamping the flange portion 13 by a plurality of clamping portions 56 and the pressing portion 22 of the sheet metal 20, the sensor 10 can be stably attached to the member to be attached, and the assemblability is improved, reducing the manufacturing cost.

[0041] Next, the terminal portion 12 of the sensor 10 and the wiring portion 40 are soldered and connected in a state where the sheet metal 20 is turned upside down with respect to the state shown in FIG. 4 where the sheet metal 20 is above the case 50.

[0042] Next, the flange portion 62 of the cover 60 is inserted between the inner protruding portion 53 and the outer protruding portion 54 of the case 50, and the lower end of the flange portion 62 in FIG. 3 is brought into contact with the base portion 52.

[0043] Next, by caulking the tip side in the standing direction of the outer protrusion 54 inward by caulking, the flange portion 62 is pressed and clamped between the base portion 52 and the outer protrusion 54.

[0044] Thus, according to the present embodiment, the sensor 10 and the attached member to which the sensor 10 is attached are provided. The attached member includes a sheet metal 20 on which the sensor 10 is placed, and a case 50 that presses and clamps the sensor 10 between the sheet metal 20. By having these, the sensor 10 can be accurately attached to the attached member.

[0045] Further, according to the present embodiment, a plurality of clamping portions 56 that press and clamp one flange portion 13 of the sensors 10 adjacent to each other are arranged between a plurality of clamping portions 56 that press and clamp the other flange portion 13 of the sensors 10 adjacent to each other. Thus, the sensor device 1 can be miniaturized.

[0046] The above-described embodiments should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is shown not by the above-described embodiments but by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

[0047] Specifically, in the above embodiment, a plurality of clamping portions 56 are provided in the case 50, but the present invention is not limited to this, and clamping portions may be provided over the entire circumference of the insertion hole 57 of the case 50.

[0048] Also, in the above embodiment, the flange portion 13 of the sensor 10 is pressed and clamped by the pressing portion 22 of the sheet metal 20 and the clamping portion 56 of the case 50. However, the present invention is not limited to this, and portions other than the flange portion 13, such as the main body portion 11 of the sensor 10, may be pressed and clamped by the pressing portion 22 and the clamping portion 56.

Explanation of Reference Numerals

[0049] 1 Sensor device 10 Sensor 11 Main body portion 12 Terminal portion 13 Flange portion 14 Protrusion 20 Sheet metal 21 Insertion hole 22 Pressing part 30 Connector part 40 Wiring part 50 Case 51 Mounting part 52 Base part 53 Inner protrusion 54 Outer protrusion 55 Opening 56 Clamping part 57 Insertion hole 58 Engaging part 60 Cover 61 Coating part 62 Flange part

Claims

1. A sensor, a mounting member to which the sensor is attached, and having, wherein the mounting member is a sheet metal on which the sensor is placed, and a resin part that presses and clamps the sensor between the sheet metal, and having, the sheet metal and the resin part are formed to be integrated by integral molding. A sensor device characterized by this.

2. The flange portion of the sensor is placed on the sheet metal, and the resin part presses and clamps the flange portion between the sheet metal. The sensor device according to claim 1, characterized by this.

3. The sheet metal is provided with an insertion hole through which a part of the sensor is inserted, and the sensor is placed on the peripheral edge of the insertion hole. The sensor device according to claim 1 or claim 2, characterized by this.

4. The resin part presses and clamps the sensor between the sheet metal by caulking. The sensor device according to any one of claims 1 to 3, characterized by this.

5. A plurality of sensors each having a flange portion, a mounting member to which the plurality of sensors are attached, and having, wherein the mounting member is a sheet metal on which the flange portions of the plurality of sensors are placed, and a resin part that presses and clamps the flange portions of the plurality of sensors between the sheet metal, and having, the sheet metal is provided with a plurality of insertion holes through which parts of the plurality of sensors are respectively inserted, and the flange portions of the plurality of sensors are placed on the peripheral edges of the plurality of insertion holes, the resin part is provided with a plurality of clamping parts that press and clamp the flange portions of the plurality of sensors between the sheet metal, the plurality of clamping parts are arranged around the plurality of insertion holes of the sheet metal, the tips of the plurality of clamping parts are bent, and the flange portion of the sensor is clamped between the tip and the sheet metal, the plurality of clamping parts that press and clamp the flange portion formed on one of the sensors adjacent to each other are arranged between the plurality of clamping parts that press and clamp the flange portion formed on the other of the sensors adjacent to each other. A sensor device characterized by this.

6. A sensor having a flange portion and a protruding portion protruding outward from the flange portion, a mounting member to which the sensor is attached, and having, wherein the mounting member is a sheet metal on which the flange portion of the sensor is placed, and a resin part that presses and clamps the flange portion of the sensor between the sheet metal, and having, the flange portion of the sensor is placed on the sheet metal. The resin part presses and clamps the flange part with the sheet metal. The resin part includes an insertion hole into which a part of the sensor is inserted, and an engagement part that engages with the protruding part of the sensor. The engagement part is a recess that extends outward from the insertion hole. A sensor device characterized by the above.

Images