pressure sensor

Abstract

The pressure sensor (2) includes an insulator sheet main body (21), a first detection electrode (32), a second detection electrode (62), a first insulator sheet (31), and a first shield electrode (33). The first insulator sheet (31) has a thickness that is equal to or less than a thickness of the insulator sheet main body (21). The first shield electrode (33) is arranged to overlap the first detection electrode (32) as viewed in a thickness direction of the first shield electrode (33), has an outer shape that includes an outer shape of the first detection electrode (32), and has a plurality of first openings (33a) that penetrate the first shield electrode (33) in the thickness direction of the first shield electrode (33).

Description

Technical Field

[0001] This disclosure relates to pressure sensors. Background Technology

[0002] Previously, as a pressure sensor installed in the seats of vehicles such as motor vehicles to detect the biometric information of the occupant, the pressure sensor described in Patent Document 1 is known. This pressure sensor is installed in the seat cushion and detects biometric information such as breathing and heartbeat of the person sitting in the seat.

[0003] The aforementioned pressure sensor has an insulating sheet made of non-woven fabric positioned between a pair of detection electrodes made of conductive cloth. When a person sits in the seat, pressure is applied to the pressure sensor through their breathing and heartbeat, for example. This compresses the insulating sheet between the detection electrodes, changing the distance between them. Consequently, the electrostatic capacitance between the detection electrodes changes. By detecting this change in electrostatic capacitance, biometric information about the person is obtained.

[0004] Existing technical documents Patent documents Patent document 1: International Publication No. 2019 / 116919. Summary of the Invention

[0005] The problem that the invention aims to solve Various electrical devices are sometimes arranged around the seat. For example, in a vehicle, there are multiple electrical devices around the seat. In such cases, to improve the detection accuracy of the pressure sensor, it is desirable to electromagnetically shield the noise generated by the electrical devices. Therefore, it is considered to place a shielding electrode outside the detection electrode. In this case, an insulating clamp is placed between the detection electrode and the shielding electrode. As a result, so-called parasitic capacitance is generated between the detection electrode and the shielding electrode. Due to the influence of parasitic capacitance, there is a potential risk of reduced detection sensitivity of the detection electrode.

[0006] To reduce parasitic capacitance, increasing the thickness of the insulating clamp to increase the distance between the detection electrode and the shielding electrode is considered. However, if the insulating clamp is made of a rigid material, increasing its thickness may reduce the seating comfort of the occupant. Conversely, if the insulating clamp is made of a softer material, the pressure exerted by the occupant, corresponding to biometric information, may be absorbed by the insulating clamp, potentially reducing the detection sensitivity of the pressure sensor.

[0007] In addition, the same problem arises when pressure sensors are installed on bedding and other items besides seats to obtain the user's biological information.

[0008] One object of this disclosure is to provide a pressure sensor that improves detection sensitivity while suppressing discomfort to users of seats and bedding. Another object of this disclosure is to provide a pressure sensor that can be implemented at low cost through a simple structure.

[0009] means for solving problems One aspect of this disclosure lies in a pressure sensor, wherein... The pressure sensor includes: Insulator sheet body; The first detection electrode is disposed on the first side of the insulator sheet body; The second detection electrode is disposed on the second side of the insulator sheet body and is configured to overlap with the first detection electrode. A first insulating sheet is disposed on the outer surface side of the first detection electrode; and A first shielding electrode is disposed on the outer surface of the first insulator sheet and provides electromagnetic shielding for the first detection electrode. The thickness of the first insulator sheet is equal to or less than the thickness of the main body of the insulator sheet. Viewed from the thickness direction of the first shielding electrode, the first shielding electrode is configured to overlap with the first detection electrode and has a shape that includes the outline of the first detection electrode. The first shielding electrode has a plurality of first openings extending through the thickness direction of the first shielding electrode.

[0010] Another aspect of this disclosure lies in a pressure sensor, wherein... The pressure sensor includes: Insulator sheet body; A first electrode unit is disposed on a first surface of the insulator sheet body, is disposed on the insulator sheet body in a non-adhesive manner, and is configured to be separate from the insulator sheet body; and The second detection electrode is disposed on the second side of the insulating sheet body in a non-adhesive manner, and is configured to overlap with the first electrode unit. The first electrode unit includes: First insulating sheet; The first detection electrode is bonded to the inner surface of the first insulator sheet; and The first shielding electrode is bonded to the outer surface of the first insulator sheet and provides electromagnetic shielding for the first detection electrode.

[0011] Invention Effects According to one aspect of this disclosure, the thickness of the first insulating sheet is equal to or less than the thickness of the main insulating sheet body, thus reducing the overall thickness of the pressure sensor. This improves the seating comfort of the person sitting in the chair equipped with the pressure sensor. Furthermore, it improves the sleep comfort of the user using bedding equipped with the pressure sensor. In this way, discomfort caused to the user of chairs, bedding, etc., equipped with pressure sensors can be suppressed.

[0012] Furthermore, by incorporating a first shielding electrode, the pressure sensor can reduce the impact of external noise on the first detection electrode. Additionally, by providing multiple first openings in the first shielding electrode, the area where the first detection electrode and the first shielding electrode face each other can be reduced. As a result, the parasitic capacitance generated between the first detection electrode and the first shielding electrode can be reduced. Therefore, the detection sensitivity of the pressure sensor can be improved.

[0013] As described above, according to one aspect of this disclosure, a pressure sensor can be provided that suppresses discomfort for users of seats and bedding and improves detection sensitivity.

[0014] According to other embodiments of this disclosure, a first insulating sheet, a first detection electrode, and a first shielding electrode constitute a first electrode unit. This simplifies manufacturing and reduces costs. Furthermore, it allows for a stable distance between the first detection electrode and the first shielding electrode. Consequently, variations in parasitic capacitance between the first detection electrode and the first shielding electrode can be suppressed. Therefore, the detection sensitivity of the pressure sensor can be improved.

[0015] As described above, according to other aspects of this disclosure, it is possible to provide a pressure sensor that can be made low-cost through a simple structure.

[0016] It should be noted that the reference numerals in parentheses in the claims indicate the correspondence with the specific means described in the embodiments described below, and do not limit the technical scope of this disclosure. Attached Figure Description

[0017] Figure 1 This is a diagram illustrating the structure of a user state estimation system including a pressure sensor in the implementation embodiment.

[0018] Figure 2 This is a 3D view of the pressure sensor viewed from above.

[0019] Figure 3 This is a 3D view of the pressure sensor from below.

[0020] Figure 4This is an exploded 3D view of the pressure sensor structure with the protective film removed, viewed from above.

[0021] Figure 5 This is an exploded 3D view of the pressure sensor structure with the protective film removed, viewed from below.

[0022] Figure 6 This is a cross-sectional view of a pressure sensor.

[0023] Figure 7 It is a cross-sectional view showing the state of the insulator sheet, the first electrode unit, and the second electrode unit that make up the pressure sensor after disassembly.

[0024] Figure 8 This is a top view of the structure of the first electrode unit with the protective film removed, viewed from above (outer surface side). Figure 8 In the diagram, only the outlines (outlines) of the first shielding electrode, the first main wiring shielding electrode, and the first auxiliary wiring shielding electrode are shown.

[0025] Figure 9 This is a top view (from above, inner surface side) of the structure of the second electrode unit with the protective film removed. Figure 9 In the diagram, only the outlines (outlines) of the second shielding electrode, the second main wiring shielding electrode, and the second auxiliary wiring shielding electrode are shown.

[0026] Figure 10 This is a perspective view of the first electrode unit constituting the pressure sensor in the deformation mode (where the protective film is removed). Detailed Implementation

[0027] (Implementation Method) 1. Overview of User State Prediction System 1 Reference Figure 1 The general outline of the user state estimation system 1 in this embodiment will be described. The user state estimation system 1 is configured to estimate the state of a person sitting on the seat 10 of a vehicle or the seat 10 of furniture. However, in addition to the case of the person sitting on the seat 10, the user state estimation system 1 can also be used for the person sitting on the cushion, and can also be used for the person lying on the bed, bedding, or other bedding.

[0028] The state of the user as a presumed subject includes at least one biological information selected from the user's heart rate information and breathing information. Furthermore, the state of the user as a presumed subject may also include the sitting posture (sitting position) of a person sitting on the seat 10 or cushion, or the sleeping posture (lying position) of a person lying on bedding. In this embodiment, the case where the state of the user as a presumed subject includes the heart rate information, breathing information, and the sitting posture (sitting position) of a person sitting on the seat 10 is taken as an example. The sitting posture includes at least one of the sitting posture itself, indicating the sitting position, and changes in the sitting posture.

[0029] 2. Structure of Seat 10 As described above, in this embodiment, the user state estimation system 1 estimates the biometric information and sitting posture of the person seated in the seat 10. Therefore, referring to... Figure 1 The structure of seat 10 will be explained.

[0030] The seat 10 includes a seat frame 11, a seat cushion 12, a seat surface material 13, a backrest frame 14, a backrest cushion 15, a backrest surface material 16, a headrest frame 17, a headrest cushion 18, and a headrest surface material 19. Here, in the seat 10, the seat cushion 12 and the seat surface material 13 can be configured to be fixed to the seat frame 11, or they can be configured to be detachably mounted on the seat frame 11, like a seat cushion.

[0031] 3. Basic Structure of User State Prediction System 1 Reference Figure 1 The basic structure of the user's state estimation system 1 is described below. The state estimation system 1 includes a pressure sensor 2 and a state estimation device 3.

[0032] In this embodiment, the pressure sensor 2 is disposed within the seat cushion 12 of the seat 10. For example, the pressure sensor 2 is disposed at the midpoint of the seat cushion 12 in the vertical direction, and is configured to be sandwiched between the upper and lower cushions. The pressure sensor 2 outputs a signal corresponding to the pressure input via the seat cushion 12. It should be noted that the pressure sensor 2 may also be disposed on the backrest cushion 15 instead of the seat cushion 12. Alternatively, the pressure sensor 2 may be disposed within the seat cushion itself.

[0033] The pressure sensor 2 is configured so as not to cause discomfort to the user sitting in the seat 10 associated with its presence. For example, the pressure sensor 2 is formed in the form of a sheet (film) and is flexible. The pressure sensor 2 can be configured to extend and retract in the surface direction or it can be configured not to extend and retract.

[0034] The pressure sensor 2 is configured to detect signals used to infer biometric information about the user. For example, the pressure sensor 2 is configured to detect pressure transmitted through the seat cushion 12 due to the pulsation of the artery in the user's thigh. Here, the pulsation of the artery in the thigh includes activities corresponding to heartbeat and respiration, which are biometric information. Therefore, the pressure sensor 2 is configured to detect the pulsation of the artery in the thigh as a signal for inferring biometric information.

[0035] Furthermore, in this embodiment, the pressure sensor 2 is configured to detect a signal used to estimate the user's sitting posture. Changes in the user's sitting position and posture correspond to changes in the position of the user's thighs. Therefore, the pressure sensor 2 is configured to detect the position of the user's thighs and changes in their position, serving as a signal for estimating the user's posture.

[0036] It should be noted that, when detecting the user's biometric information and sleeping posture, the pressure sensor 2 can be installed in mattresses, quilts, or other bedding. Alternatively, the pressure sensor 2 can be installed in bed sheets laid on top of the bedding. Furthermore, the pressure sensor 2 can also be installed between overlapping bedding items.

[0037] The state estimation device 3 is configured to estimate the state of the user sitting in the seat 10 by performing calculations based on the signal output by the pressure sensor 2. The state estimation device 3 can be disposed inside the seat cushion 12 or outside the seat cushion 12.

[0038] Specifically, the state estimation device 3 applies a voltage for pressure detection to the pressure sensor 2. Furthermore, when the detection voltage is applied to the pressure sensor 2, the state estimation device 3 detects the voltage corresponding to the electrostatic capacitance detected by the pressure sensor 2. Then, the state estimation device 3 performs calculations based on the signal output from the pressure sensor 2, thereby estimating the user's state. As described above, the estimated user state includes the user's biometric information, the user's seating posture, etc.

[0039] It should be noted that when the user's state estimation system 1 targets the user of the bedding, the state estimation device 3 performs calculations based on the signals output from the pressure sensor 2 disposed on the bedding, thereby estimating the user's biological information and lying posture.

[0040] 4. Basic structure of pressure sensor 2 Reference Figure 2 as well as Figure 3The basic structure of pressure sensor 2 will be described. Pressure sensor 2 is formed in the shape of a sheet and constitutes an electrostatic sensor. Pressure sensor 2 is configured to include an insulating sheet body 21, a first electrode unit 22, and a second electrode unit 23.

[0041] The insulating sheet body 21 constitutes the dielectric layer of the electrostatic sensor. The insulating sheet body 21 is formed of a material capable of elastic deformation. For example, the insulating sheet body 21 is formed of an insulating elastomer or rubber. Therefore, the insulating sheet body 21 is configured to undergo compressive deformation when the pressure sensor 2 is subjected to compressive force in the plane normal direction. The insulating sheet body 21 has a predetermined thickness to allow for compressive deformation. The thickness of the insulating sheet body 21 is, for example, set to 0.1 mm to 5 mm. For example, in... Figure 2 as well as Figure 3 In this case, the shape of the insulator sheet body 21 is, for example, rectangular, but it can also be any shape.

[0042] The first electrode unit 22 is configured as one electrode containing an electrostatic sensor. The first electrode unit 22 is formed in a sheet (film) shape. The first electrode unit 22 is disposed on the first surface 21a side of the insulating sheet body 21. Figure 2 as well as Figure 3 (The upper side). In this embodiment, the first electrode unit 22 is configured to be in contact with the first surface 21a of the insulator sheet body 21. However, the first electrode unit 22 is configured to be non-adhesive to the insulator sheet body 21. That is, in this embodiment, the first electrode unit 22 is configured to be separate from the insulator sheet body 21.

[0043] The first electrode unit 22 includes a first sensor electrode portion 22a, a first wiring portion 22b, and a first virtual wiring portion 22c. The first sensor electrode portion 22a is located in the portion corresponding to the insulator sheet body 21. In this embodiment, the first sensor electrode portion 22a is formed to have the same shape as the insulator sheet body 21, but it may also be formed to have a different shape. Moreover, the first sensor electrode portion 22a is configured to include one electrode of an electrostatic sensor. The first sensor electrode portion 22a is arranged to be in contact with the first surface 21a of the insulator sheet body 21.

[0044] The first wiring portion 22b is formed in the shape of an elongated strip. The first wiring portion 22b has the function of electrically connecting the state estimation device 3 to the first sensor electrode portion 22a. The first wiring portion 22b extends from a portion of the side edge (outer periphery) of the first sensor electrode portion 22a along the surface direction of the first sensor electrode portion 22a. Specifically, one end of the first wiring portion 22b is connected to one side of the rectangle of the first sensor electrode portion 22a.

[0045] The first virtual wiring portion 22c is formed in the shape of an elongated strip. The first virtual wiring portion 22c is slightly shorter than the second wiring portion 23b, which will be described later. The first virtual wiring portion 22c does not function as a wiring component but is provided for shielding purposes. The first virtual wiring portion 22c extends from a portion of the side edge (outer periphery) of the first sensor electrode portion 22a along the surface direction of the first sensor electrode portion 22a. Specifically, one end of the first virtual wiring portion 22c is connected to another side of the rectangle of the first sensor electrode portion 22a. In this embodiment, the first wiring portion 22b and the first virtual wiring portion 22c are respectively connected to adjacent sides of the rectangle of the first sensor electrode portion 22a.

[0046] The second electrode unit 23 is configured to include the other electrode of the electrostatic sensor. The second electrode unit 23 is formed in a sheet (film) shape. The second electrode unit 23 is disposed on the second surface 21b side of the insulator sheet body 21. Figure 2 as well as Figure 3 (The lower side). In this embodiment, the second electrode unit 23 is configured to be in contact with the second surface 21b of the insulator sheet body 21. However, the second electrode unit 23 is configured to be non-adhesive to the insulator sheet body 21. That is, in this embodiment, the second electrode unit 23 is configured to be separate from the insulator sheet body 21.

[0047] The second electrode unit 23 includes a second sensor electrode portion 23a, a second wiring portion 23b, and a second virtual wiring portion 23c. The second sensor electrode portion 23a is located in the portion corresponding to the insulator sheet body 21. In this embodiment, the second sensor electrode portion 23a is formed to have the same shape as the insulator sheet body 21, but it may also be formed to have a different shape. Moreover, the second sensor electrode portion 23a is configured to include the other electrode of the electrostatic sensor. The second sensor electrode portion 23a is arranged to be in contact with the second surface 21b of the insulator sheet body 21.

[0048] The second wiring portion 23b is formed in the shape of an elongated strip. The second wiring portion 23b functions to electrically connect the state estimation device 3 to the second sensor electrode portion 23a. The second wiring portion 23b extends from a portion of the side edge (outer periphery) of the second sensor electrode portion 23a along the surface direction of the second sensor electrode portion 23a. Specifically, one end of the second wiring portion 23b is connected to one side of the rectangle of the second sensor electrode portion 23a.

[0049] The second virtual wiring portion 23c is formed in the shape of an elongated strip. The second virtual wiring portion 23c is slightly shorter than the first wiring portion 22b. The second virtual wiring portion 23c does not function as a wiring component but is provided for shielding purposes. The second virtual wiring portion 23c extends from a portion of the side edge (outer periphery) of the second sensor electrode portion 23a along the surface direction of the second sensor electrode portion 23a. Specifically, one end of the second virtual wiring portion 23c is connected to another side of the rectangle of the second sensor electrode portion 23a. In this embodiment, the second wiring portion 23b and the second virtual wiring portion 23c are respectively connected to adjacent sides of the rectangle of the second sensor electrode portion 23a.

[0050] The second electrode unit 23 is configured to overlap with the first electrode unit 22. That is, when viewed from the thickness direction of the insulating sheet body 21, the first electrode unit 22 and the second electrode unit 23 are configured to overlap. In this embodiment, the shape of the second electrode unit 23 is formed to be the same as that of the first electrode unit 22. Therefore, the first electrode unit 22 and the second electrode unit 23 are configured to overlap throughout the entire area.

[0051] The first sensor electrode portion 22a of the first electrode unit 22 and the second sensor electrode portion 23a of the second electrode unit 23 are positioned opposite each other, sandwiching the insulating sheet body 21. The first wiring portion 22b of the first electrode unit 22 and the second virtual wiring portion 23c of the second electrode unit 23 are directly opposite each other without passing through the insulating sheet body 21. The first wiring portion 22b and the second virtual wiring portion 23c have a portion in direct contact. The first virtual wiring portion 22c of the first electrode unit 22 and the second wiring portion 23b of the second electrode unit 23 are directly opposite each other without passing through the insulating sheet body 21. The first virtual wiring portion 22c and the second wiring portion 23b have a portion in direct contact.

[0052] However, an insulating sheet identical to the insulating sheet body 21 may also be disposed between the first wiring section 22b and the second virtual wiring section 23c. Similarly, an insulating sheet identical to the insulating sheet body 21 may also be disposed between the first virtual wiring section 22c and the second wiring section 23b.

[0053] 5. Details of the first electrode unit 22 and the second electrode unit 23 5-1. Details of the first electrode unit 22 Reference Figures 2-8 The details of the first electrode unit 22, which is a component of the pressure sensor 2, will be described below. As described above, the first electrode unit 22 includes a first sensor electrode portion 22a, a first wiring portion 22b, and a first virtual wiring portion 22c.

[0054] The first sensor electrode portion 22a includes a first insulating sheet 31, a first detection electrode 32, a first shielding electrode 33, and a first sensor protective film 34. Figure 2 as well as Figure 7 (As shown).

[0055] The first insulating sheet 31 is, for example, a sheet made of resin. Figures 2-7 As shown, the first insulator sheet 31 is configured to face the first surface 21a of the insulator sheet body 21 and has the same shape as the insulator sheet body 21. In this embodiment, the first insulator sheet 31 is formed into a rectangle similar to the insulator sheet body 21. The thickness of the first insulator sheet 31 is set to be equal to or less than the thickness of the insulator sheet body 21. In particular, the thickness of the first insulator sheet 31 can be set to be thinner than the thickness of the insulator sheet body 21. For example, the thickness of the first insulator sheet 31 is set to be in the range of 10 μm to 2 mm.

[0056] The first insulator sheet 31 is formed of a material having a Young's modulus greater than that of the insulator sheet body 21. For example, the first insulator sheet 31 is formed of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide (PI), etc. Furthermore, as described above, the thickness of the first insulator sheet 31 is set to be thinner than the thickness of the insulator sheet body 21. By setting it in this way, the first insulator sheet 31 is less prone to compression deformation relative to the insulator sheet body 21. Therefore, when the pressure sensor 2 is subjected to pressure, the thickness of the first insulator sheet 31 can remain almost unchanged.

[0057] like Figures 5-8 As shown, the first detection electrode 32 is disposed on the inner surface side of the first insulator sheet 31. Therefore, the first detection electrode 32 is disposed on the first surface 21a side of the insulator sheet body 21, and the first insulator sheet 31 is disposed on the outer surface side of the first detection electrode 32. In this embodiment, the first detection electrode 32 is disposed on the insulator sheet body 21 in a non-adhesive manner.

[0058] In this embodiment, the first detection electrode 32 is bonded to the inner surface of the first insulating sheet 31. The first detection electrode 32 is formed by printing a conductive material onto the inner surface of the first insulating sheet 31. Therefore, the first detection electrode 32 is a printed formation bonded to the inner surface of the first insulating sheet 31. The first detection electrode 32 can be made of any conductive material; any material can be used. For example, silver, copper, carbon, etc., can be used. The thickness of the first detection electrode 32 is, for example, set to a range of 1 μm to 100 μm.

[0059] like Figure 5 as well as Figure 8As shown, the first detection electrode 32 is formed as a plurality of strip electrodes parallel to one side of the rectangle of the first insulating sheet 31. In this embodiment, the first detection electrode 32 has four strip electrodes, but it can be set to any number of strip electrodes. It should be noted that the first detection electrode 32 can also be, for example, a matrix of electrodes arranged in multiple rows × multiple columns. For example, when the first detection electrode 32 is arranged in 4 rows × 4 columns, it forms 16 electrodes.

[0060] The first shielding electrode 33 is configured to provide electromagnetic shielding for the first detection electrode 32. For example... Figure 2 , Figure 4 , Figures 6-8 As shown, the first shielding electrode 33 is disposed on the outer surface of the first insulating sheet 31. In this embodiment, the first shielding electrode 33 is bonded to the outer surface of the first insulating sheet 31. In this embodiment, the first shielding electrode 33 is formed by printing a conductive material onto the outer surface of the first insulating sheet 31. Therefore, the first shielding electrode 33 is a printed product bonded to the outer surface of the first insulating sheet 31. The first shielding electrode 33 can be made of any conductive material. For example, silver, copper, carbon, etc., can be used for the first shielding electrode 33. However, when using silver or copper, carbon or the like can be used for coating to prevent oxidation. The thickness of the first shielding electrode 33 is set to, for example, in the range of 1 μm to 100 μm.

[0061] like Figure 4 , Figures 6-8 As shown, viewed from the thickness direction (vertical direction) of the first shielding electrode 33, the first shielding electrode 33 is configured to overlap with the first detection electrode 32 and has an outline that includes the shape of the first detection electrode 32. That is, viewed from the thickness direction of the first shielding electrode 33, the outline of the first shielding electrode 33 is configured to include the first detection electrode 32.

[0062] Furthermore, the first shielding electrode 33 has a plurality of first openings 33a extending through its thickness direction. In this embodiment, the first shielding electrode 33 has an outer frame formed by lines, and the inner region (inside the frame) is also formed by lines. In particular, the first shielding electrode 33 forms the inner region in a lattice shape, having rectangular first openings 33a. However, the first openings 33a can be circular or other polygonal shapes besides rectangular. In addition, in this embodiment, the first shielding electrode 33 forms the lines of the inner region at an angle relative to the edge of the outer frame. However, the first shielding electrode 33 can also form the lines of the inner region parallel to the edge of the outer frame.

[0063] Thus, the first shielding electrode 33 has multiple first openings 33a, and is therefore configured to oppose only a portion of the first detection electrode 32. That is, there is no material forming the first shielding electrode 33 at the position corresponding to the first opening 33a in the first detection electrode 32. It should be noted that, viewed from the thickness direction of the first shielding electrode 33, the first shielding electrode 33 may also have a portion located in the region where the first detection electrode 32 is not present.

[0064] Here, as described above, the first shielding electrode 33 is configured to electromagnetically shield the first detection electrode 32. The maximum span of the first opening 33a is set in such a way that noise from the object can be shielded even when the first shielding electrode 33 has a first opening 33a. When the first opening 33a is rectangular, the maximum span of the first opening 33a is the length of the diagonal of the rectangle. When the first opening 33a is circular, the maximum span of the first opening 33a is the diameter.

[0065] In this embodiment, the plurality of first openings 33a are configured to have the same shape. However, the plurality of first openings 33a may also be configured to have different shapes and sizes depending on the region. For example, the maximum span of the plurality of first openings 33a may also be configured to be multiple based on the frequency of noise of the object electromagnetically shielded by the first shielding electrode 33.

[0066] like Figure 2 , Figures 6-7 As shown, the first sensor protective film 34, formed of an insulating material, covers the outer surface of the first shielding electrode 33. At the location of the first opening 33a of the first shielding electrode 33, the first insulator sheet 31 faces outwards. Therefore, the first sensor protective film 34 covers this portion of the first insulator sheet 31. In this embodiment, the first sensor protective film 34 is formed by printing insulating material onto the outer surface of the first shielding electrode 33. Therefore, the first sensor protective film 34 is a printed formation adhered to both the outer surface of the first shielding electrode 33 and a portion of the outer surface of the first insulator sheet 31.

[0067] The first sensor protective film 34 can be made of any insulating material. For example, epoxy resin, phenolic resin, etc., which have properties such as heat- and ultraviolet-based curability, insulation, and heat resistance can be used. The thickness of the first sensor protective film 34 can be set to, for example, in the range of 1 μm to 100 μm.

[0068] The first wiring section 22b includes a first main extension insulator sheet 41, a first wiring 42, a first main wiring shielding electrode 43, and a first wiring protective film 44. Figure 2 as well as Figure 7 (As shown).

[0069] The first primary extension insulator sheet 41 is, for example, a sheet made of resin. Figures 2-8 As shown, the first main extended insulator sheet 41 extends from the side edge of the first insulator sheet 31 along the surface direction of the first insulator sheet 31. The first main extended insulator sheet 41 is located at a position where the insulator sheet body 21 is not present. In this embodiment, the first main extended insulator sheet 41 is formed of a resin sheet integral with the first insulator sheet 31. Therefore, the first main extended insulator sheet 41 is formed of the same type of material as the first insulator sheet 31 and has the same thickness.

[0070] like Figures 5-8 As shown, the first wiring 42 is disposed on the inner surface side of the first main extension insulator sheet 41. In this embodiment, the first wiring 42 is bonded to the inner surface of the first main extension insulator sheet 41. The first wiring 42 is formed by printing conductive material onto the inner surface of the first main extension insulator sheet 41. Therefore, the first wiring 42 is a printed formation bonded to the inner surface of the first main extension insulator sheet 41.

[0071] The first wiring 42 is electrically connected to the first detection electrode 32. The first wiring 42 is formed of the same type of material and the same thickness as the first detection electrode 32. In this embodiment, the first wiring 42 is formed by printing simultaneously with the first detection electrode 32.

[0072] The first wiring 42 is connected to a plurality of strip electrodes constituting the first detection electrode 32. One end of the first wiring 42 is connected to the first detection electrode 32, and the other end extends to the front end of the first main extended insulator sheet 41. The first wiring 42 and Figure 6 Connector 24 shown is electrically connected.

[0073] The first main wiring shielding electrode 43 is configured to provide electromagnetic shielding for the first wiring 42. For example... Figure 4 , Figures 6-8 As shown, the first main wiring shielding electrode 43 is disposed on the outer surface of the first main extension insulator sheet 41. In this embodiment, the first main wiring shielding electrode 43 is bonded to the outer surface of the first main extension insulator sheet 41. The first main wiring shielding electrode 43 is formed by printing a conductive material onto the outer surface of the first main extension insulator sheet 41. Therefore, the first main wiring shielding electrode 43 is a printed formation bonded to the outer surface of the first main extension insulator sheet 41.

[0074] The first main wiring shielding electrode 43 is electrically connected to the first shielding electrode 33. The first main wiring shielding electrode 43 is formed of the same type of material and the same thickness as the first shielding electrode 33. In this embodiment, the first main wiring shielding electrode 43 is formed by printing simultaneously with the first shielding electrode 33.

[0075] like Figure 4 , Figures 6-8 As shown, viewed from the thickness direction of the first main wiring shield electrode 43, the first main wiring shield electrode 43 is configured to overlap with the first wiring 42 and has an outline that includes the portion of the first wiring 42 excluding the area of ​​the connector 24. That is, viewed from the thickness direction of the first main wiring shield electrode 43, the outline of the first main wiring shield electrode 43 is configured to include the portion of the first wiring 42 excluding the area of ​​the connector 24.

[0076] One end of the first main wiring shielding electrode 43 is connected to the first shielding electrode 33, and the other end extends to the front end of the first main extension insulator sheet 41. The first main wiring shielding electrode 43 and... Figure 6 Connector 24 shown is electrically connected.

[0077] Furthermore, the first main wiring shielding electrode 43 has a plurality of third openings 43a extending through its thickness direction. In this embodiment, the first main wiring shielding electrode 43 has an outer frame formed by lines, and the inner region (inside the frame) is also formed by lines. In particular, the first main wiring shielding electrode 43 forms a lattice-like inner region with rectangular third openings 43a. However, the third openings 43a can be circular or other polygonal shapes besides rectangles. In addition, in this embodiment, the first main wiring shielding electrode 43 is formed such that the lines of the inner region are at an angle relative to the edge of the outer frame. However, the first main wiring shielding electrode 43 can also have the lines of the inner region formed parallel to the edge of the outer frame.

[0078] Thus, the first main wiring shielding electrode 43 has multiple third openings 43a, and is therefore configured to oppose only a portion of the first wiring 42. That is, there is no material forming the first main wiring shielding electrode 43 at the position corresponding to the third opening 43a in the first wiring 42. It should be noted that, viewed from the thickness direction of the first main wiring shielding electrode 43, the first main wiring shielding electrode 43 may also have a portion located in the region where the first wiring 42 does not exist.

[0079] Here, as described above, the first main wiring shielding electrode 43 is configured to provide electromagnetic shielding for the first wiring 42. The maximum span size of the third opening 43a is set in such a way that it can shield against noise from the object even when the first main wiring shielding electrode 43 has a third opening 43a.

[0080] In this embodiment, the plurality of third openings 43a are configured to have the same shape. Furthermore, the plurality of third openings 43a are formed to have the same shape as the first opening 33a. Therefore, the span dimension of the third opening 43a is also the same as the maximum span dimension of the first opening 33a. However, the third openings 43a may also be configured to have a different shape and size than the first opening 33a. Additionally, the plurality of third openings 43a may be configured to have different shapes and sizes depending on the region. For example, the maximum span dimension of the plurality of third openings 43a may also be set to a plurality based on the frequency of noise of the object electromagnetically shielded by the first main wiring shielding electrode 43.

[0081] like Figure 2 , Figures 6-7 As shown, the first wiring protection film 44, formed of an insulating material, covers the outer surface of the first main wiring shielding electrode 43. At the location of the third opening 43a of the first main wiring shielding electrode 43, the first main extension insulator sheet 41 faces outwards. Therefore, the first wiring protection film 44 covers this portion of the first main extension insulator sheet 41. In this embodiment, the first wiring protection film 44 is formed by printing the insulating material onto the outer surface of the first main wiring shielding electrode 43. Therefore, the first wiring protection film 44 is a printed formation adhered to the outer surface of the first main wiring shielding electrode 43 and a portion of the first main extension insulator sheet 41.

[0082] The first wiring protection film 44 is connected to the first sensor protection film 34. The first wiring protection film 44 is formed of the same type of material and the same thickness as the first sensor protection film 34. In this embodiment, the first wiring protection film 44 is formed by printing simultaneously with the first sensor protection film 34.

[0083] The first virtual wiring section 22c includes a first extended insulating sheet 51, a first wiring shielding electrode 53, and a first virtual wiring protective film 54. Figure 2 as well as Figure 7 (As shown).

[0084] The first extended insulating sheet 51 is, for example, a resin sheet. Figures 2-8 As shown, the first extended insulating sheet 51 extends from the side edge of the first insulating sheet 31 along the surface direction of the first insulating sheet 31. The first extended insulating sheet 51 is located at a position where the insulating sheet body 21 is not present. In this embodiment, the first extended insulating sheet 51 is formed of a resin sheet integral with the first insulating sheet 31. Therefore, the first extended insulating sheet 51 is formed of the same type of material as the first insulating sheet 31 and has the same thickness.

[0085] Here, as Figure 5As shown above, a first wiring 42 is formed on the inner surface of the first main extension insulator sheet 41. On the other hand, conductive materials such as electrodes and wiring are not formed on the inner surface of the first auxiliary extension insulator sheet 51. Therefore, the first auxiliary extension insulator sheet 51 is exposed throughout the entire inner surface area.

[0086] The first auxiliary extended insulator sheet 51 is non-adhesively grounded to the second main extended insulator sheet 71 of the second wiring portion 23b of the second electrode unit 23 (described later), and is configured to face the second main extended insulator sheet 71. The first auxiliary extended insulator sheet 51 is formed with the same shape as the second main extended insulator sheet 71. Therefore, the first auxiliary extended insulator sheet 51 is configured to face the entire area of ​​the second main extended insulator sheet 71.

[0087] The first auxiliary wiring shielding electrode 53 is configured to provide electromagnetic shielding for the second wiring 72 of the second wiring section 23b of the second electrode unit 23, which will be described later. For example... Figure 4 , Figures 6-8 As shown, the first auxiliary wiring shielding electrode 53 is disposed on the outer surface side of the first auxiliary extension insulator sheet 51. In this embodiment, the first auxiliary wiring shielding electrode 53 is formed by printing on the outer surface of the first auxiliary extension insulator sheet 51. Therefore, the first auxiliary wiring shielding electrode 53 is a printed formation bonded to the outer surface of the first auxiliary extension insulator sheet 51.

[0088] The first auxiliary wiring shielding electrode 53 is electrically connected to the first shielding electrode 33. The first auxiliary wiring shielding electrode 53 is formed of the same type of material and the same thickness as the first shielding electrode 33. In this embodiment, the first auxiliary wiring shielding electrode 53 is formed by printing simultaneously with the first shielding electrode 33.

[0089] like Figure 4 , Figures 6-9 As shown, viewed from the thickness direction of the first sub-wiring shield electrode 53, the first sub-wiring shield electrode 53 is arranged overlapping the second wiring 72, and has an outline that includes the portion of the second wiring 72 excluding the area of ​​the connector 25. That is, it is configured such that, viewed from the thickness direction of the first sub-wiring shield electrode 53, the outline of the first sub-wiring shield electrode 53 includes the portion of the second wiring 72 excluding the area of ​​the connector 25.

[0090] Furthermore, the first sub-wiring shielding electrode 53 has a plurality of fifth openings 53a extending through its thickness direction. In this embodiment, the first sub-wiring shielding electrode 53 has an outer frame formed by lines, and the inner region (inside the frame) is also formed by lines. In particular, the first sub-wiring shielding electrode 53 forms a lattice-like inner region with rectangular fifth openings 53a. However, the fifth openings 53a can be circular or other polygonal shapes besides rectangles. In addition, in this embodiment, the first sub-wiring shielding electrode 53 forms the lines of the inner region at an angle relative to the edge of the outer frame. However, the first sub-wiring shielding electrode 53 can also form the lines of the inner region parallel to the edge of the outer frame.

[0091] Thus, the first sub-wiring shield electrode 53 has multiple fifth openings 53a, and is therefore configured to oppose only a portion of the second wiring 72. That is, there is no material forming the first sub-wiring shield electrode 53 at the position corresponding to the fifth opening 53a in the second wiring 72. It should be noted that, viewed from the thickness direction of the first sub-wiring shield electrode 53, the first sub-wiring shield electrode 53 may also have a portion located in the region where the second wiring 72 does not exist.

[0092] Here, as described above, the first secondary wiring shielding electrode 53 is configured to provide electromagnetic shielding for the second wiring 72. The maximum span size of the fifth opening 53a is set in such a way that noise of the object can be shielded even when the first secondary wiring shielding electrode 53 has a fifth opening 53a.

[0093] In this embodiment, the plurality of fifth openings 53a are configured to have the same shape. Furthermore, the plurality of fifth openings 53a are formed to have the same shape as the first opening 33a. Therefore, the span dimension of the fifth opening 53a is also the same as the maximum span dimension of the first opening 33a. However, the fifth openings 53a may also be configured to have a different shape and size than the first opening 33a. Additionally, the plurality of fifth openings 53a may be configured to have different shapes and sizes depending on the region. For example, the maximum span dimension of the plurality of fifth openings 53a may also be set to a plurality based on the frequency of noise of the object electromagnetically shielded by the first secondary wiring shielding electrode 53.

[0094] like Figure 2 , Figures 6-7As shown, the first virtual wiring protection film 54, formed of an insulating material, covers the outer surface of the first secondary wiring shielding electrode 53. At the fifth opening 53a of the first secondary wiring shielding electrode 53, the first secondary extended insulator sheet 51 faces outwards. Therefore, the first virtual wiring protection film 54 covers this portion of the first secondary extended insulator sheet 51. In this embodiment, the first virtual wiring protection film 54 is formed by printing an insulating material onto the outer surface of the first secondary wiring shielding electrode 53. Therefore, the first virtual wiring protection film 54 is a printed formation adhered to the outer surface of the first secondary wiring shielding electrode 53 and a portion of the first secondary extended insulator sheet 51.

[0095] The first virtual wiring protection film 54 is connected to the first sensor protection film 34. The first virtual wiring protection film 54 is formed of the same type of material and the same thickness as the first sensor protection film 34. In this embodiment, the first virtual wiring protection film 54 is formed by printing simultaneously with the first sensor protection film 34.

[0096] 5-2. Details of the second electrode unit 23 Reference Figures 2-7 , Figure 9 The details of the second electrode unit 23, which is a component of the pressure sensor 2, will be described below. As described above, the second electrode unit 23 includes a second sensor electrode portion 23a, a second wiring portion 23b, and a second virtual wiring portion 23c.

[0097] The second sensor electrode section 23a is configured to face the first sensor electrode section 22a across the insulating sheet body 21. The second sensor electrode section 23a includes a second insulating sheet 61, a second detection electrode 62, a second shielding electrode 63, and a second sensor protective film 64. Figure 3 as well as Figure 7 (As shown).

[0098] The second insulator sheet 61 is configured to face the second surface 21b of the insulator sheet body 21. The second insulator sheet 61 is formed in the same manner as the first insulator sheet 31. For example, the thickness of the second insulator sheet 61 is equal to or less than the thickness of the insulator sheet body 21. The same applies to other structures.

[0099] The second detection electrode 62 is disposed on the inner surface side of the second insulator sheet 61. Therefore, the second detection electrode 62 is disposed on the second surface 21b side of the insulator sheet body 21, and the second insulator sheet 61 is disposed on the outer surface side of the second detection electrode 62. In this embodiment, the second detection electrode 62 is disposed on the insulator sheet body 21 in a non-adhesive manner. The second detection electrode 62 is configured to overlap with the first detection electrode 32. That is, when viewed from the thickness direction of the insulator sheet body 21, at least a portion of the second detection electrode 62 is configured to overlap with the first detection electrode 32.

[0100] like Figure 4 as well as Figure 9 As shown, the second detection electrode 62 is formed as a plurality of strip electrodes parallel to one side of the rectangle of the second insulator sheet 61. In this embodiment, the second detection electrode 62 has four strip electrodes, but it can be set to any number of strip electrodes. Furthermore, the direction in which each strip electrode of the second detection electrode 62 extends intersects the direction in which each strip electrode of the first detection electrode 32 extends. In this embodiment, the directions in which the strip electrodes of both extend at a 90-degree angle. Therefore, when viewed from the thickness direction of the insulator sheet body 21, the first detection electrode 32 and the second detection electrode 62 overlap at 16 points. However, this number can be arbitrarily set.

[0101] It should be noted that the second detection electrode 62 can also be, for example, a matrix of multiple electrodes arranged in multiple rows and multiple columns. For example, when the second detection electrode 62 is arranged in 4 rows and 4 columns, it forms 16 electrodes. In addition, when the first detection electrode 32 is an electrode arranged in multiple rows and multiple columns, the second detection electrode 62 can also be a single electrode.

[0102] The second detection electrode 62 is formed in the same manner as the first detection electrode 32. Furthermore, the relationship between the second detection electrode 62 and the second insulating sheet 61 is configured to be the same as that between the first detection electrode 32 and the first insulating sheet 31. For example, the second detection electrode 62 is a printed material adhered to the inner surface of the second insulating sheet 61. The same applies to other structures.

[0103] The second shielding electrode 63 is configured to provide electromagnetic shielding for the second detection electrode 62. The second shielding electrode 63 is disposed on the outer surface of the second insulator sheet 61. The second shielding electrode 63 is formed in the same manner as the first shielding electrode 33. Furthermore, the relationship between the second shielding electrode 63 and the second insulator sheet 61 is configured to be the same as that between the first shielding electrode 33 and the first insulator sheet 31. For example, the second shielding electrode 63 is a printed material adhered to the outer surface of the second insulator sheet 61. The same applies to other structures.

[0104] Furthermore, viewed from the thickness direction of the second shielding electrode 63, the second shielding electrode 63 is configured to overlap with the second detection electrode 62 and has an outline that includes the shape of the second detection electrode 62. In addition, the second shielding electrode 63 has a plurality of second openings 63a extending through the thickness direction of the second shielding electrode 63. The second openings 63a are formed in the same manner as the first opening 33a. However, the second openings 63a may also be formed differently from the first opening 33a.

[0105] In this embodiment, the plurality of second openings 63a are configured to have the same shape. However, the plurality of second openings 63a may also be configured to have different shapes and sizes depending on the region. For example, the maximum span of the plurality of second openings 63a may also be set to a plurality based on the frequency of noise of the object electromagnetically shielded by the second shielding electrode 63. Moreover, the maximum span of the second opening 63a may be the same as or different from the maximum span of the first opening 33a.

[0106] The second sensor protective film 64, formed of an insulating material, covers the outer surface of the second shielding electrode 63. The second sensor protective film 64 is formed in the same manner as the first sensor protective film 34. Furthermore, the relationship between the second sensor protective film 64, the second shielding electrode 63, and the second insulator sheet 61 is configured to be the same as that between the first sensor protective film 34, the first shielding electrode 33, and the first insulator sheet 31. For example, the second sensor protective film 64 is a printed formation adhered to a portion of the outer surface of the second shielding electrode 63 and the outer surface of the second insulator sheet 61. The same applies to other structures.

[0107] The second wiring section 23b is configured to face the first virtual wiring section 22c without being separated from the insulator sheet body 21. However, an insulator sheet identical to the insulator sheet body 21 may also be disposed between the second wiring section 23b and the first virtual wiring section 22c. The second wiring section 23b includes a second main extension insulator sheet 71, a second wiring 72, a second main wiring shielding electrode 73, and a second wiring protective film 74. Figure 3 as well as Figure 7 (As shown).

[0108] The second main extension insulator sheet 71 extends from the side edge of the second insulator sheet 61 along the surface direction of the second insulator sheet 61. The second main extension insulator sheet 71 is formed of a resin sheet integral with the second insulator sheet 61. The second main extension insulator sheet 71 is positioned opposite the first auxiliary extension insulator sheet 51 and is disposed on the first auxiliary extension insulator sheet 51 in a non-adhesive manner. The second main extension insulator sheet 71 is formed in the same manner as the first auxiliary extension insulator sheet 51.

[0109] However, the second main extended insulator sheet 71 is formed to be slightly longer than the first auxiliary extended insulator sheet 51. Therefore, the front end portion of the second main extended insulator sheet 71 has a region that is not opposite to the first auxiliary extended insulator sheet 51.

[0110] The second wiring 72 is disposed on the inner surface of the second main extension insulator sheet 71 and is electrically connected to the second detection electrode 62. The second wiring 72 is formed in the same manner as the first wiring 42. For example, the second wiring 72 is a printed formation bonded to the inner surface of the second main extension insulator sheet 71. The same applies to other structures. Furthermore, the second wiring 72 and... Figure 6 The connector 25 shown is electrically connected. The front end portion of the second wiring 72 is formed as an area that does not oppose the first extended insulating sheet 51. This area is electrically connected to the terminals of the connector 25.

[0111] The second main wiring shielding electrode 73 is configured to provide electromagnetic shielding for the second wiring 72. The second main wiring shielding electrode 73 is disposed on the outer surface of the second main extension insulator sheet 71. The second main wiring shielding electrode 73 is electrically connected to the second shielding electrode 63. The second main wiring shielding electrode 73 is formed in the same manner as the first main wiring shielding electrode 43. Furthermore, the relationship between the second main wiring shielding electrode 73 and the second main extension insulator sheet 71 is configured to be the same as the relationship between the first main wiring shielding electrode 43 and the first main extension insulator sheet 41. For example, the second main wiring shielding electrode 73 is a printed material adhered to the outer surface of the second main extension insulator sheet 71. The same applies to other structures.

[0112] One end of the second main wiring shielding electrode 73 is connected to the second shielding electrode 63, and the other end extends to the front end of the second main extension insulator sheet 71. The second main wiring shielding electrode 73 and... Figure 6 The connector 25 shown is electrically connected.

[0113] Furthermore, viewed from the thickness direction of the second main wiring shield electrode 73, the second main wiring shield electrode 73 is configured to overlap with the second wiring 72 and has an outline that includes the portion of the second wiring 72 excluding the area of ​​the connector 25. That is, viewed from the thickness direction of the second main wiring shield electrode 73, the outline, i.e., the shape, of the second main wiring shield electrode 73 is configured to include the portion of the second wiring 72 excluding the area of ​​the connector 25.

[0114] Furthermore, the second main wiring shielding electrode 73 has a plurality of fourth openings 73a extending through the thickness direction of the second main wiring shielding electrode 73. The fourth openings 73a are formed in the same manner as the third openings 43a. The fourth openings 73a may also be formed differently from the third openings 43a.

[0115] In this embodiment, the plurality of fourth openings 73a are configured to have the same shape. However, the plurality of fourth openings 73a may also be configured to have different shapes and sizes depending on the region. For example, the maximum span size of the plurality of fourth openings 73a may also be set to multiple based on the frequency of noise of the object electromagnetically shielded by the second main wiring shielding electrode 73. Moreover, the maximum span size of the fourth opening 73a may be the same as or different from the maximum span size of the third opening 43a.

[0116] The second wiring protection film 74, formed of an insulating material, covers the outer surface of the second main wiring shielding electrode 73. The second wiring protection film 74 is formed in the same manner as the first wiring protection film 44. Furthermore, the relationship between the second wiring protection film 74, the second main wiring shielding electrode 73, and the second main extension insulator sheet 71 is configured to be the same as the relationship between the first wiring protection film 44, the first main wiring shielding electrode 43, and the first main extension insulator sheet 41. For example, the second wiring protection film 74 is a printed formation adhered to a portion of the outer surface of the second main wiring shielding electrode 73 and the outer surface of the second main extension insulator sheet 71. The same applies to other structures.

[0117] The second virtual wiring section 23c is configured to face the first wiring section 22b without being separated by the insulator sheet body 21. However, an insulator sheet identical to the insulator sheet body 21 may also be disposed between the second virtual wiring section 23c and the first wiring section 22b. The second virtual wiring section 23c includes a second extended insulator sheet 81, a second wiring shielding electrode 83, and a second virtual wiring protective film 84. Figure 3 as well as Figure 7 (As shown).

[0118] The second extended insulator sheet 81 extends from the side edge of the second insulator sheet 61 along the surface direction of the second insulator sheet 61. The second extended insulator sheet 81 is formed of a resin sheet integral with the second insulator sheet 61. The second extended insulator sheet 81 is positioned opposite the first main extended insulator sheet 41 and is disposed on the first main extended insulator sheet 41 in a non-adhesive manner. The second extended insulator sheet 81 is formed in the same manner as the first main extended insulator sheet 41.

[0119] However, the second extension insulator sheet 81 is formed to be slightly shorter than the first main extension insulator sheet 41. Therefore, the front end portion of the first main extension insulator sheet 41 has a region that does not oppose the second extension insulator sheet 81. Consequently, the front end portion of the first wiring 42 is also formed to be a region that does not oppose the second extension insulator sheet 81. This region is electrically connected to the terminals of the connector 24.

[0120] The second auxiliary wiring shielding electrode 83 is configured to provide electromagnetic shielding for the first wiring 42 of the first wiring portion 22b of the first electrode unit 22. The second auxiliary wiring shielding electrode 83 is disposed on the outer surface of the second auxiliary extension insulator sheet 81. The second auxiliary wiring shielding electrode 83 is electrically connected to the second shielding electrode 63. The second auxiliary wiring shielding electrode 83 is formed in the same manner as the first auxiliary wiring shielding electrode 53. Furthermore, the relationship between the second auxiliary wiring shielding electrode 83 and the second auxiliary extension insulator sheet 81 is configured to be the same as that between the first auxiliary wiring shielding electrode 53 and the first auxiliary extension insulator sheet 51. For example, the second auxiliary wiring shielding electrode 83 is a printed material adhered to the outer surface of the second auxiliary extension insulator sheet 81. The same applies to other structures.

[0121] Furthermore, viewed from the thickness direction of the second sub-wiring shield electrode 83, the second sub-wiring shield electrode 83 is configured to overlap with the first wiring 42 and has an outline that includes the portion of the first wiring 42 excluding the area of ​​the connector 24. That is, viewed from the thickness direction of the second sub-wiring shield electrode 83, the outline of the second sub-wiring shield electrode 83 is configured to include the portion of the first wiring 42 excluding the area of ​​the connector 24.

[0122] The second auxiliary wiring shielding electrode 83 has a plurality of sixth openings 83a extending through the thickness direction of the second auxiliary wiring shielding electrode 83. The sixth openings 83a are formed in the same manner as the fifth openings 53a. The sixth openings 83a may also be formed differently from the fifth openings 53a.

[0123] In this embodiment, the plurality of sixth openings 83a are configured to have the same shape. However, the plurality of sixth openings 83a may also be configured to have different shapes and sizes depending on the region. For example, the maximum span size of the plurality of sixth openings 83a may also be set to multiple based on the frequency of noise of the object electromagnetically shielded by the second auxiliary wiring shielding electrode 83. Moreover, the maximum span size of the sixth opening 83a may be the same as or different from the maximum span size of the fifth opening 53a.

[0124] The second virtual wiring protection film 84, formed of an insulating material, covers the outer surface of the second auxiliary wiring shielding electrode 83. The second virtual wiring protection film 84 is formed in the same manner as the first virtual wiring protection film 54. Furthermore, the relationship between the second virtual wiring protection film 84, the second auxiliary wiring shielding electrode 83, and the second auxiliary extended insulator sheet 81 is configured to be the same as that between the first virtual wiring protection film 54, the first auxiliary wiring shielding electrode 53, and the first auxiliary extended insulator sheet 51. For example, the second virtual wiring protection film 84 is a printed formation adhered to a portion of the outer surface of the second auxiliary wiring shielding electrode 83 and the outer surface of the second auxiliary extended insulator sheet 81. The same applies to other structures.

[0125] 6. Effects The effects of this implementation method will be explained.

[0126] The pressure sensor 2 includes: an insulator sheet body 21; a first detection electrode 32 disposed on the first surface 21a of the insulator sheet body 21; a second detection electrode 62 disposed on the second surface 21b of the insulator sheet body 21, overlapping the first detection electrode 32; a first insulator sheet 31 disposed on the outer surface of the first detection electrode 32; and a first shielding electrode 33 disposed on the outer surface of the first insulator sheet 31, providing electromagnetic shielding for the first detection electrode 32. By including the first shielding electrode 33, the pressure sensor 2 can reduce the influence of external noise on the first detection electrode 32. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0127] The thickness of the first insulating sheet 31 is equal to or less than the thickness of the insulating sheet body 21. Therefore, the overall thickness of the pressure sensor 2 can be reduced. This improves the seating comfort of the person sitting in the seat 10 equipped with the pressure sensor 2. Furthermore, it improves the sleep comfort of the user using bedding equipped with the pressure sensor 2. In this way, discomfort caused to the user of the seat 10, bedding, etc., equipped with the pressure sensor 2 can be suppressed.

[0128] More preferably, the thickness of the first insulating sheet 31 is thinner than the thickness of the insulating sheet body 21. In this case, it is possible to more effectively suppress discomfort to the user.

[0129] Furthermore, viewed from the thickness direction of the first shielding electrode 33, the first shielding electrode 33 is configured to overlap with the first detection electrode 32 and has a shape that includes the outline of the first detection electrode 32, and has a plurality of first openings 33a extending through the thickness direction of the first shielding electrode 33. By providing the first shielding electrode 33 with a plurality of first openings 33a, the area of ​​the first detection electrode 32 and the first shielding electrode 33 facing each other can be reduced. As a result, the parasitic capacitance generated between the first detection electrode 32 and the first shielding electrode 33 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0130] Furthermore, the pressure sensor 2 also includes: a second insulating sheet 61 disposed on the outer surface of the second detection electrode 62; and a second shielding electrode 63 disposed on the outer surface of the second insulating sheet 61 to electromagnetically shield the second detection electrode 62. By including the second shielding electrode 63, the pressure sensor 2 can reduce the influence of external noise on the second detection electrode 62. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0131] The thickness of the second insulating sheet 61 is equal to or less than the thickness of the insulating sheet body 21. This helps to suppress discomfort for users of seats 10, bedding, etc., where the pressure sensor 2 is installed. More preferably, the thickness of the first insulating sheet 31 is thinner than the thickness of the insulating sheet body 21. In this case, discomfort for the user can be suppressed even more effectively.

[0132] Furthermore, viewed from the thickness direction, the second shielding electrode 63 is configured to overlap with the second detection electrode 62, and has a shape including the outline of the second detection electrode 62, and has a plurality of second openings 63a extending through the thickness direction of the second shielding electrode 63. By providing the second shielding electrode 63 with a plurality of second openings 63a, the area of ​​the second detection electrode 62 and the second shielding electrode 63 facing each other can be reduced. As a result, the parasitic capacitance generated between the second detection electrode 62 and the second shielding electrode 63 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0133] Furthermore, the pressure sensor 2 is configured to include a first electrode unit 22, which is disposed on the first surface 21a side of the insulating sheet body 21 and is configured to be separate from the insulating sheet body 21. The first electrode unit 22 includes a first insulating sheet 31, a first detection electrode 32 bonded to the inner surface of the first insulating sheet 31 and disposed on the insulating sheet body 21 in a non-bonded manner, and a first shielding electrode 33 bonded to the outer surface of the first insulating sheet 31.

[0134] Thus, the first insulator sheet 31, the first detection electrode 32, and the first shielding electrode 33 constitute the first electrode unit 22. This simple structure facilitates manufacturing and reduces costs. Furthermore, the distance between the first detection electrode 32 and the first shielding electrode 33 can be stabilized. As a result, fluctuations in the parasitic capacitance between the first detection electrode 32 and the first shielding electrode 33 can be suppressed. Consequently, the detection sensitivity of the pressure sensor 2 can be improved.

[0135] Furthermore, the first detection electrode 32 is a printed formation bonded to the inner surface of the first insulating sheet 31, and the first shielding electrode 33 is a printed formation bonded to the outer surface of the first insulating sheet 31. In this case, the first detection electrode 32 and the first shielding electrode 33 can be positioned with high precision. As a result, the desired shielding performance can be obtained, and the detection accuracy of the pressure sensor 2 can be improved.

[0136] In addition, the pressure sensor 2 is configured to have a second electrode unit 23 in addition to the first electrode unit 22. The second electrode unit 23 is disposed on the second surface 21b side of the insulating sheet body 21, and is configured to overlap with the first electrode unit 22, and is configured to be separate from the insulating sheet body 21.

[0137] The second electrode unit 23 includes a second insulating sheet 61, a second detection electrode 62 bonded to the inner surface of the second insulating sheet 61 and disposed on the insulating sheet body 21 in a non-bonded manner, and a second shielding electrode 63 bonded to the outer surface of the second insulating sheet 61.

[0138] Thus, the second insulator sheet 61, the second detection electrode 62, and the second shielding electrode 63 constitute the second electrode unit 23. This simple structure facilitates manufacturing and reduces costs. Furthermore, the distance between the second detection electrode 62 and the second shielding electrode 63 can be stabilized. As a result, fluctuations in the parasitic capacitance between the second detection electrode 62 and the second shielding electrode 63 can be suppressed. Consequently, the detection sensitivity of the pressure sensor 2 can be improved.

[0139] Furthermore, the second detection electrode 62 is a printed formation bonded to the inner surface of the second insulating sheet 61, and the second shielding electrode 63 is a printed formation bonded to the outer surface of the second insulating sheet 61. In this case, the second detection electrode 62 and the second shielding electrode 63 can be positioned with high precision. As a result, the desired shielding performance can be obtained, and the detection accuracy of the pressure sensor 2 can be improved.

[0140] In addition, the pressure sensor 2 also includes: a first main extending insulator sheet 41 extending from the side edge of the first insulator sheet 31 along the surface direction of the first insulator sheet 31; a first wiring 42 disposed on the inner surface side of the first main extending insulator sheet 41 and electrically connected to the first detection electrode 32; and a first main wiring shielding electrode 43 disposed on the outer surface side of the first main extending insulator sheet 41 and electrically connected to the first shielding electrode 33, providing electromagnetic shielding for the first wiring 42. By including the first main wiring shielding electrode 43, the pressure sensor 2 can reduce the influence of external noise on the first wiring 42. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0141] Furthermore, viewed from the thickness direction of the first main wiring shield electrode 43, the first main wiring shield electrode 43 is configured to overlap with the first wiring 42 and has a shape that includes the outer shape of the first wiring 42 excluding the area of ​​the connector 24, and has a plurality of third openings 43a extending through the thickness direction of the first main wiring shield electrode 43. By providing the first main wiring shield electrode 43 with a plurality of third openings 43a, the area of ​​the first wiring 42 and the first main wiring shield electrode 43 facing each other can be reduced. As a result, the parasitic capacitance generated between the first wiring 42 and the first main wiring shield electrode 43 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0142] Furthermore, the first electrode unit 22 is configured to include a first main extension insulating sheet 41, a first wiring 42, and a first main wiring shielding electrode 43. Thus, the pressure sensor 2 has a simplified structure. Moreover, the first wiring 42 and the first main wiring shielding electrode 43 can be connected to a shared connector 24. This enables miniaturization of the pressure sensor 2.

[0143] In addition, the pressure sensor 2 also includes: a second main extending insulator sheet 71 extending from the side edge of the second insulator sheet 61 along the surface direction of the second insulator sheet 61; a second wiring 72 disposed on the inner surface side of the second main extending insulator sheet 71 and electrically connected to the second detection electrode 62; and a second main wiring shielding electrode 73 disposed on the outer surface side of the second main extending insulator sheet 71 and electrically connected to the second shielding electrode 63, providing electromagnetic shielding for the second wiring 72. By including the second main wiring shielding electrode 73, the pressure sensor 2 can reduce the influence of external noise on the second wiring 72. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0144] Furthermore, viewed from the thickness direction of the second main wiring shield electrode 73, the second main wiring shield electrode 73 is configured to overlap with the second wiring 72, and has a shape that includes the outer shape of the second wiring 72 excluding the area of ​​connector 25, and has a plurality of fourth openings 73a extending through the thickness direction of the second main wiring shield electrode 73. By providing the second main wiring shield electrode 73 with a plurality of fourth openings 73a, the area of ​​the second wiring 72 and the second main wiring shield electrode 73 facing each other can be reduced. As a result, the parasitic capacitance generated between the second wiring 72 and the second main wiring shield electrode 73 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0145] Furthermore, the second electrode unit 23 is configured to include a second main extension insulating sheet 71, a second wiring 72, and a second main wiring shielding electrode 73. Thus, the pressure sensor 2 has a simplified structure. Moreover, the second wiring 72 and the second main wiring shielding electrode 73 can be connected to a shared connector 25. This enables miniaturization of the pressure sensor 2.

[0146] In addition, the pressure sensor 2 also includes: a first extended insulating sheet 51, which extends from the side edge of the first insulating sheet 31 along the surface direction of the first insulating sheet 31 and is disposed non-bondedly on the second main extended insulating sheet 71, positioned opposite to the second main extended insulating sheet 71; and a first wiring shielding electrode 53, which is disposed on the outer surface side of the first extended insulating sheet 51 and electrically connected to the first shielding electrode 33 to provide electromagnetic shielding for the second wiring 72. By including the first wiring shielding electrode 53, the pressure sensor 2 can reduce the influence of external noise on the second wiring 72. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0147] Furthermore, viewed from the thickness direction of the first sub-wiring shield electrode 53, the first sub-wiring shield electrode 53 is configured to overlap with the second wiring 72, and has a shape that includes the area of ​​the second wiring 72 excluding the area of ​​the connector 25, and has a plurality of fifth openings 53a extending through the thickness direction of the first sub-wiring shield electrode 53. By providing the first sub-wiring shield electrode 53 with a plurality of fifth openings 53a, the area of ​​the second wiring 72 facing the first sub-wiring shield electrode 53 can be reduced. As a result, the parasitic capacitance generated between the second wiring 72 and the first sub-wiring shield electrode 53 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0148] Furthermore, the first electrode unit 22 is configured to include a first extended insulating sheet 51 and a first wiring shield electrode 53. Thus, the pressure sensor 2 has a simple structure.

[0149] The pressure sensor 2 further includes: a second extended insulator sheet 81, which extends from the side edge of the second insulator sheet 61 along the surface direction of the second insulator sheet 61 and is disposed non-bondedly on the first main extended insulator sheet 41, positioned opposite to the first main extended insulator sheet 41; and a second wiring shielding electrode 83, which is disposed on the outer surface of the second extended insulator sheet 81 and electrically connected to the second shielding electrode 63, providing electromagnetic shielding for the first wiring 42. By including the second wiring shielding electrode 83, the pressure sensor 2 can reduce the influence of external noise on the first wiring 42. As a result, the detection accuracy of the pressure sensor 2 can be improved.

[0150] Furthermore, viewed from the thickness direction of the second auxiliary wiring shield electrode 83, the second auxiliary wiring shield electrode 83 is configured to overlap with the first wiring 42 and has a shape that includes the outer shape of the first wiring 42 excluding the area of ​​connector 24, and has a plurality of sixth openings 83a extending through the thickness direction of the second auxiliary wiring shield electrode 83. By providing the second auxiliary wiring shield electrode 83 with a plurality of sixth openings 83a, the area of ​​the first wiring 42 and the second auxiliary wiring shield electrode 83 facing each other can be reduced. As a result, the parasitic capacitance generated between the first wiring 42 and the second auxiliary wiring shield electrode 83 can be reduced. Therefore, the detection sensitivity of the pressure sensor 2 can be improved.

[0151] Furthermore, the insulator sheet body 21, the first detection electrode 32, and the second detection electrode 62 are configured without adhesive bonding. This simplifies the structure. However, the insulator sheet body 21, the first detection electrode 32, and the second detection electrode 62 could also be bonded together.

[0152] In the first shielding electrode 33, the maximum span size of the plurality of first openings 33a can also be set to be of the same type. However, the maximum span size of the plurality of first openings 33a can also be set to be multiple according to the frequency of the noise of the object to which the first shielding electrode 33 is electromagnetically shielded. The shielding performance of the first detection electrode 32 can be adjusted according to the frequency of the noise to be suppressed.

[0153] Furthermore, in the second shielding electrode 63, the maximum span size of the plurality of second openings 63a can also be set to the same type. However, the maximum span size of the plurality of second openings 63a can also be set to multiple values ​​depending on the frequency of the noise of the object to which the second shielding electrode 63 is electromagnetically shielding. The shielding performance of the second detection electrode 62 can be adjusted according to the frequency of the noise to be suppressed.

[0154] Furthermore, in the first main wiring shielding electrode 43, the maximum span size of the plurality of third openings 43a can also be set to the same type. However, the maximum span size of the plurality of third openings 43a can also be set to multiple values ​​based on the frequency of the noise of the object to which the first main wiring shielding electrode 43 is electromagnetically shielded. The shielding performance of the first wiring 42 can be adjusted according to the frequency of the noise to be suppressed.

[0155] Furthermore, in the second main wiring shielding electrode 73, the maximum span size of the plurality of fourth openings 73a can also be set to the same type. However, the maximum span size of the plurality of fourth openings 73a can also be set to multiple values ​​depending on the frequency of the noise of the object to which the second main wiring shielding electrode 73 is electromagnetically shielded. The shielding performance of the second wiring 72 can be adjusted according to the frequency of the noise to be suppressed.

[0156] Furthermore, in the first auxiliary wiring shielding electrode 53, the maximum span size of the plurality of fifth openings 53a can also be set to the same type. However, the maximum span size of the plurality of fifth openings 53a can also be set to multiple values ​​depending on the frequency of the noise of the object to which the first auxiliary wiring shielding electrode 53 is electromagnetically shielding. The shielding performance of the second wiring 72 can be adjusted according to the frequency of the noise to be suppressed.

[0157] Furthermore, in the second auxiliary wiring shielding electrode 83, the maximum span size of the plurality of sixth openings 83a can also be set to the same type. However, the maximum span size of the plurality of sixth openings 83a can also be set to multiple values ​​depending on the frequency of the noise of the object to which the second auxiliary wiring shielding electrode 83 is electromagnetically shielding. The shielding performance of the first wiring 42 can be adjusted according to the frequency of the noise to be suppressed.

[0158] Any one of the first opening 33a, the second opening 63a, the third opening 43a, the fourth opening 73a, the fifth opening 53a, and the sixth opening 83a can be set to have a maximum span size different from at least one of the others. Thus, at each location, appropriate shielding performance can be ensured based on the frequency of the noise being suppressed.

[0159] For example, the maximum span size of the first opening 33a can be set to be different from at least one of the maximum span sizes of the second opening 63a, the third opening 43a, the fourth opening 73a, the fifth opening 53a, and the sixth opening 83a. Alternatively, the maximum span size of the second opening 63a can be set to be different from at least one of the maximum span sizes of the first opening 33a, the third opening 43a, the fourth opening 73a, the fifth opening 53a, and the sixth opening 83a.

[0160] (Deformation method) As described above, the first opening 33a, the second opening 63a, the third opening 43a, the fourth opening 73a, the fifth opening 53a, and the sixth opening 83a can be set to any shape and size. For example, as Figure 10 As shown, the first opening 33a can also be set to have a maximum span smaller than that of the third opening 43a and the fifth opening 53a. The same applies to the other openings.

Claims

1. A pressure sensor (2), wherein, The pressure sensor includes: Insulator sheet body (21); The first detection electrode (32) is disposed on the first surface (21a) side of the insulator sheet body; The second detection electrode (62) is disposed on the second surface (21b) side of the insulator sheet body and is configured to overlap with the first detection electrode; A first insulating sheet (31) is disposed on the outer surface side of the first detection electrode; as well as The first shielding electrode (33) is disposed on the outer surface of the first insulator sheet and provides electromagnetic shielding for the first detection electrode. The thickness of the first insulator sheet is equal to or less than the thickness of the main body of the insulator sheet. Viewed from the thickness direction of the first shielding electrode, the first shielding electrode is configured to overlap with the first detection electrode and has a shape that includes the outline of the first detection electrode. The first shielding electrode has a plurality of first openings (33a) extending through the first shielding electrode in the thickness direction.

2. The pressure sensor according to claim 1, wherein, The pressure sensor also features: A second insulating sheet (61) is disposed on the outer surface side of the second detection electrode; and The second shielding electrode (63) is disposed on the outer surface of the second insulator sheet and provides electromagnetic shielding for the second detection electrode. The thickness of the second insulator sheet is equal to or less than the thickness of the main insulator sheet. Viewed from the thickness direction of the second shielding electrode, the second shielding electrode is configured to overlap with the second detection electrode and has a shape that includes the outline of the second detection electrode. The second shielding electrode has a plurality of second openings (63a) extending through the thickness direction of the second shielding electrode.

3. The pressure sensor according to claim 1, wherein, The pressure sensor also includes a first electrode unit (22), which is disposed on the first side of the insulating sheet body and is configured to be separate from the insulating sheet body. The first electrode unit includes: The first insulating sheet; The first detection electrode is bonded to the inner surface of the first insulator sheet and disposed on the insulator sheet body in a non-bonded manner; and The first shielding electrode is bonded to the outer surface of the first insulator sheet.

4. The pressure sensor according to claim 3, wherein, The first detection electrode is a printed material bonded to the inner surface of the first insulating sheet. The first shielding electrode is a printed formation bonded to the outer surface of the first insulating sheet.

5. The pressure sensor according to claim 2, wherein, The pressure sensor also features: A first electrode unit, disposed on a first surface of the insulator sheet body, is configured to be separate from the insulator sheet body; and The second electrode unit (23) is disposed on the second side of the insulator sheet body, and is configured to overlap with the first electrode unit, thus being separate from the insulator sheet body. The first electrode unit includes: The first insulating sheet; The first detection electrode is bonded to the inner surface of the first insulator sheet, but is disposed on the insulator sheet body in a non-bonded manner; and The first shielding electrode is bonded to the outer surface of the first insulator sheet. The second electrode unit includes: The second insulating sheet; The second detection electrode is bonded to the inner surface of the second insulator sheet, but is disposed on the insulator sheet body in a non-bonded manner; and The second shielding electrode is bonded to the outer surface of the second insulator sheet.

6. The pressure sensor according to claim 5, wherein, The first detection electrode is a printed material bonded to the inner surface of the first insulating sheet. The first shielding electrode is a printed formation bonded to the outer surface of the first insulating sheet. The second detection electrode is a printed formation bonded to the inner surface of the second insulator sheet. The second shielding electrode is a printed formation bonded to the outer surface of the second insulator sheet.

7. The pressure sensor according to claim 1, wherein, The pressure sensor also features: The first main extended insulating sheet (41) extends from the side edge of the first insulating sheet along the surface direction of the first insulating sheet; The first wiring (42) is disposed on the inner surface side of the first main extension insulator sheet and is electrically connected to the first detection electrode; as well as The first main wiring shielding electrode (43) is disposed on the outer surface of the first main extension insulator sheet and electrically connected to the first shielding electrode to provide electromagnetic shielding for the first wiring. Viewed from the thickness direction of the first main wiring shield electrode, the first main wiring shield electrode is configured to overlap with the first wiring and has a shape that includes the outline of the first wiring excluding the connector area. The first main wiring shield electrode has a plurality of third openings (43a) extending through the thickness direction of the first main wiring shield electrode.

8. The pressure sensor according to claim 2, wherein, The pressure sensor also features: The first main extended insulator sheet extends from the side edge of the first insulator sheet along the surface direction of the first insulator sheet; The first wiring is disposed on the inner surface side of the first main extension insulator sheet and is electrically connected to the first detection electrode; as well as A first main wiring shielding electrode is disposed on the outer surface of the first main extension insulator sheet and electrically connected to the first shielding electrode to provide electromagnetic shielding for the first wiring. Viewed from the thickness direction of the first main wiring shield electrode, the first main wiring shield electrode is configured to overlap with the first wiring and has a shape that includes the outline of the first wiring excluding the connector area. The first main wiring shield electrode has a plurality of third openings extending through the thickness direction of the first main wiring shield electrode. The pressure sensor also features: The second main extended insulator sheet (71) extends from the side edge of the second insulator sheet along the surface direction of the second insulator sheet; The second wiring (72) is disposed on the inner surface side of the second main extension insulator sheet and is electrically connected to the second detection electrode; as well as The second main wiring shielding electrode (73) is disposed on the outer surface of the second main extension insulator sheet and electrically connected to the second shielding electrode to provide electromagnetic shielding for the second wiring. Viewed from the thickness direction of the second main wiring shield electrode, the second main wiring shield electrode is configured to overlap with the second wiring and has a shape that includes the outline of the second wiring excluding the connector area. The second main wiring shield electrode has a plurality of fourth openings (73a) extending through the thickness direction of the second main wiring shield electrode.

9. The pressure sensor according to claim 8, wherein, The pressure sensor also features: The first extended insulating sheet (51) extends from the side edge of the first insulating sheet along the surface direction of the first insulating sheet and is disposed on the second main extended insulating sheet in a non-adhesive manner, and is configured to be opposite to the second main extended insulating sheet; as well as The first auxiliary wiring shielding electrode (53) is disposed on the outer surface of the first auxiliary extended insulator sheet and electrically connected to the first shielding electrode to provide electromagnetic shielding for the second wiring. Viewed from the thickness direction of the first sub-wiring shield electrode, the first sub-wiring shield electrode is configured to overlap with the second wiring and has a shape that includes the outline of the second wiring excluding the connector area. The first sub-wiring shield electrode has a plurality of fifth openings (53a) extending through the thickness direction of the first sub-wiring shield electrode.

10. The pressure sensor according to claim 9, wherein, The pressure sensor also features: The second extended insulating sheet (81) extends from the side edge of the second insulating sheet along the surface direction of the second insulating sheet and is disposed on the first main extended insulating sheet in a non-adhesive manner, and is configured to be opposite to the first main extended insulating sheet; as well as The second auxiliary wiring shielding electrode (83) is disposed on the outer surface of the second auxiliary extended insulator sheet and electrically connected to the second shielding electrode to provide electromagnetic shielding for the first wiring. Viewed from the thickness direction of the second sub-wiring shield electrode, the second sub-wiring shield electrode is configured to overlap with the first wiring and has a shape that includes the outline of the first wiring excluding the connector area. The second sub-wiring shield electrode has a plurality of sixth openings (83a) extending through the thickness direction of the second sub-wiring shield electrode.

11. The pressure sensor according to claim 1, wherein, The insulator sheet body, the first detection electrode, and the second detection electrode are configured in a non-adhesive manner.

12. The pressure sensor according to claim 1, wherein, The maximum span size of the plurality of first openings is set according to the frequency of the noise of the object electromagnetically shielded by the first shielding electrode.

13. The pressure sensor according to claim 2, wherein, The maximum span dimensions of the plurality of first openings are set according to the frequency of noise of the object being electromagnetically shielded by the first shielding electrode. The maximum span size of the plurality of second openings is set according to the frequency of noise of the object electromagnetically shielded by the second shielding electrode.

14. The pressure sensor according to claim 7, wherein, The maximum span dimensions of the plurality of first openings are set according to the frequency of noise of the object being electromagnetically shielded by the first shielding electrode. The maximum span size of the plurality of third openings is set according to the frequency of the noise of the object electromagnetically shielded by the first main wiring shielding electrode.

15. The pressure sensor according to claim 8, wherein, The maximum span dimensions of the plurality of first openings are set according to the frequency of noise of the object being electromagnetically shielded by the first shielding electrode. The maximum span dimensions of the plurality of second openings are set according to the frequency of noise of the object being electromagnetically shielded by the second shielding electrode. The maximum span dimensions of the plurality of third openings are set according to the frequency of noise of the object electromagnetically shielded by the first main wiring shielding electrode. The maximum span size of the plurality of fourth openings is set according to the frequency of the noise of the object electromagnetically shielded by the second main wiring shielding electrode.

16. The pressure sensor according to claim 10, wherein, The maximum span size of the first opening is different from at least one of the maximum span sizes of the second opening, the third opening, the fourth opening, the fifth opening, and the sixth opening.

17. The pressure sensor according to claim 10, wherein, The maximum span size of the second opening is different from at least one of the maximum span sizes of the first opening, the third opening, the fourth opening, the fifth opening, and the sixth opening.

18. A pressure sensor, wherein, The pressure sensor includes: Insulator sheet body; The first electrode unit is disposed on the first side of the insulating sheet body, is disposed on the insulating sheet body in a non-adhesive manner, and is configured to be separate from the insulating sheet body; as well as The second detection electrode is disposed on the second side of the insulating sheet body in a non-adhesive manner, and is configured to overlap with the first electrode unit. The first electrode unit includes: First insulating sheet; The first detection electrode is bonded to the inner surface of the first insulator sheet; and The first shielding electrode is bonded to the outer surface of the first insulator sheet and provides electromagnetic shielding for the first detection electrode.

19. The pressure sensor according to claim 18, wherein, The pressure sensor also includes a second electrode unit, which is disposed on the second side of the insulator sheet body and is configured to overlap with the first electrode unit, thus being separate from the insulator sheet body. The second electrode unit includes: Second insulator sheet; The second detection electrode is bonded to the inner surface of the second insulator sheet; and The second shielding electrode is bonded to the outer surface of the second insulator sheet and provides electromagnetic shielding for the second detection electrode.

20. The pressure sensor according to claim 18, wherein, The first detection electrode is a printed material bonded to the inner surface of the first insulating sheet. The first shielding electrode is a printed formation bonded to the outer surface of the first insulating sheet.

21. The pressure sensor according to claim 19, wherein, The first detection electrode is a printed material bonded to the inner surface of the first insulating sheet. The first shielding electrode is a printed formation bonded to the outer surface of the first insulating sheet. The second detection electrode is a printed formation bonded to the inner surface of the second insulator sheet. The second shielding electrode is a printed formation bonded to the outer surface of the second insulator sheet.

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