Radio module and electrical apparatus

Abstract

To provide a radio module and an electrical apparatus, capable of suppressing vibration of a substrate.SOLUTION: A radio module is constructed so as to output an electric wave. The radio module comprises a substrate and a housing. In the substrate, an antenna is mounted. The housing is constructed so as to house the substrate. The housing includes a back surface member, and a front surface member. A space is formed between the back surface member and the front surface member. The substrate is positioned in the space. In each of a plurality of places of a peripheral edge part of the substrate, a notch is formed. The back surface member includes a flat-surface back surface member main body, and a plurality of column parts. Each of the plurality of column parts is adjacent to any notch. Each of the plurality of column parts includes: a first projection part extending in a front surface direction from the back surface member main body; and a second projection part extending in a direction perpendicular to the front surface direction from the first projection part. The substrate and the front surface member are nipped by the back surface member main body and the second projection part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a wireless module and an electric device. [Background technology]

[0002] Japanese Patent Application Laid-Open Publication No. 2019-083547 (Patent Document 1) discloses a wireless module. This wireless module includes a substrate on which an antenna and an integrated circuit are mounted. According to this wireless module, the antenna and the integrated circuit are arranged so as to be spaced apart from each other, so that the effect of noise from the integrated circuit on the antenna can be reduced (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-083547 A Summary of the Invention [Problem to be solved by the invention]

[0004] When an antenna vibrates, the accuracy of the antenna decreases. Therefore, in wireless modules and electrical devices, it is preferable to suppress antenna vibration. Furthermore, these wireless modules are required to be small and lightweight, and a housing shape design that meets these requirements is desired. However, the above-mentioned Patent Document 1 does not disclose a means for solving such problems.

[0005] The present invention has been made to solve such problems, and has an object to provide a wireless module and an electric device that are capable of suppressing vibration of a board on which an antenna is mounted. [Means for solving the problem]

[0006] A wireless module according to an aspect of the present invention is configured to output radio waves. The wireless module includes a substrate and a housing. An antenna is mounted on the substrate. The housing is configured to accommodate the substrate. The housing includes a rear member and a front member. A space is formed between the rear member and the front member. The substrate is located in the space. A notch is formed at each of a plurality of locations on the peripheral edge of the substrate. The rear member includes a planar rear member main body and a plurality of pillars. Each of the plurality of pillars is adjacent to one of the notches. Each of the plurality of pillars includes a first protrusion extending from the rear member main body in the front direction and a second protrusion extending from the first protrusion in a direction perpendicular to the front direction. The substrate and the front member are sandwiched between the rear member main body and the second protrusion.

[0007] According to this wireless module, the rear member main body and the second protrusion sandwich the board and the front member, so that vibration of the board on which the antenna is mounted can be suppressed.

[0008] In the above wireless module, an antenna may be mounted on a first surface of the substrate, and a connection portion for electrically connecting the wireless module to an electrical device external to the wireless module may be mounted on a second surface of the substrate, an opening may be formed in the rear member main body portion, and the connection portion may protrude from the opening toward the rear surface.

[0009] According to this wireless module, since the connection portion protrudes from the opening in the rear member main body, it is easy to check whether the connection portion is mounted on the board.

[0010] In the above-mentioned wireless module, when viewed from the rear side, the shape of the rear member may be a rectangle including long sides and short sides, and when viewed from the rear side, the shape of the connection portion may be asymmetric with respect to at least one of a first axis extending from the center of the long side in the direction in which the short side extends, a second axis extending from the center of the short side in the direction in which the long side extends, and a third axis connecting the diagonal corners of the rectangle.

[0011] According to this wireless module, the shape of the connection part is asymmetric with respect to at least one of the first, second and third axes, thereby preventing the connection part from being connected to the electrical equipment in the wrong orientation relative to the electrical equipment.

[0012] In the above wireless module, the connection portion may be formed by a plurality of conductive pins, each of which may include a first portion extending along the substrate and a second portion extending from the first portion toward the rear surface, and when viewed from the rear surface side, at least a portion of the plurality of conductive pins may be arranged in a row, and first portions of two adjacent conductive pins among the row may extend in opposite directions.

[0013] According to this wireless module, the first portions of two adjacent conductive pins among the conductive pins arranged in a row extend in opposite directions, so that the load on the connection part is distributed, thereby ensuring the strength of the connection part.

[0014] According to another aspect of the present invention, there is provided an electric device including the wireless module described above. The wireless module is configured to detect a motion of a detection target. The electric device further includes a control unit. The control unit is configured to execute control based on a detection result of the wireless module.

[0015] According to this electrical device, control is performed based on the detection result of the wireless module, so that appropriate device control can be achieved in accordance with the operation of the detection target. Effect of the Invention

[0016] According to the present invention, it is possible to provide a wireless module and an electric device capable of suppressing vibration of a board on which an antenna is mounted. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a perspective view illustrating the appearance of a wireless module. [Diagram 2]FIG. 2 is an exploded perspective view showing a schematic diagram of a wireless module. [Diagram 3] FIG. 2 is a diagram illustrating a plan view of the wireless module. [Figure 4] FIG. 4 is a schematic diagram showing a cross section taken along line IV-IV in FIG. [Diagram 5] FIG. 2 is a perspective view showing a schematic view of a substrate and a rear member. [Figure 6] FIG. 2 is a diagram illustrating a back surface of the wireless module. [Figure 7] 1 is a schematic side view of a conductive pin mounted on a substrate body; FIG. [Figure 8] FIG. 2 is a diagram illustrating a schematic plan view of a substrate. [Figure 9] 4A to 4C are diagrams for explaining the relationship between the antenna, the substrate body, and the front member. [Figure 10] 1A to 1C are diagrams for explaining an assembly procedure for the wireless module. [Figure 11] 2 is a block diagram showing an example of an electrical configuration of an electrical device equipped with a wireless module; FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an embodiment according to one aspect of the present invention (hereinafter also referred to as "the present embodiment") will be described in detail with reference to the drawings. Note that the same or corresponding parts in the drawings are given the same reference numerals and their description will not be repeated. Also, each drawing is drawn in a schematic manner with objects appropriately omitted or exaggerated for ease of understanding.

[0019] [1. Overview] Fig. 1 is a perspective view showing a schematic external appearance of a wireless module 10 according to the present embodiment. Referring to Fig. 1, the wireless module 10 is used in a state where it is attached to an electric device such as a home appliance. The wireless module 10 is configured to output radio waves in a front direction and detect the motion of an object based on the radio waves reflected by the object present in the front direction. The wireless module 10 is configured by, for example, a Doppler radar.

[0020] The wireless module 10 includes an antenna 220, which will be described later, and the antenna 220 outputs radio waves. When vibrations are applied to the antenna 220, the accuracy with which the antenna 220 detects the movement of an object decreases. The wireless module 10 employs a structural design for suppressing vibrations of the antenna 220. The configuration of the wireless module 10 will be described in detail below.

[0021] [2. Wireless module configuration] FIG. 2 is an exploded perspective view showing a schematic view of the wireless module 10. As shown in FIG. 2, the wireless module 10 includes a front member 100, a substrate 200, and a rear member 300. Each of the front member 100, the substrate 200, and the rear member 300 has a substantially rectangular shape in a plan view. When the front member 100 and the rear member 300 are overlapped with each other, a space is formed between the front member 100 and the rear member 300. The substrate 200 is located in the space between the front member 100 and the rear member 300. That is, the substrate is housed inside the housing (the front member 100 and the rear member 300).

[0022] The front member 100 is made of, for example, resin, and includes a bulge 110 and a flange 120. Examples of resins that can be used include epoxy resin, polyphenylene ether, and acrylonitrile butadiene styrene (ABS) resin. The bulge 110 is formed in an area including the center of the front member 100, and has a shape that protrudes more toward the front as it approaches the center of the front member 100. In addition, in a plan view, the bulge 110 has a shape that is symmetrical in the vertical and horizontal directions. The flange 120 is formed on the peripheral portion of the front member 100, and extends continuously from the outer periphery of the bulge 110 toward the outside in the radial direction. The flange 120 has a planar shape. Holes H1 are formed in the vicinity of each of the four corners of the front member 100.

[0023] The substrate 200 includes a substrate body 210, an antenna 220, and a plurality of conductive pins 230. The substrate body 210 is, for example, a printed circuit board. The substrate body 210 has a planar shape. In a plan view, the substrate body 210 has a substantially rectangular shape. A notch N1 is formed at each of the four corners of the substrate body 210. An antenna 220 is mounted on the front surface of the substrate body 210, and a plurality of conductive pins 230 are mounted on the rear surface of the substrate body 210. The antenna 220 is, for example, a chip antenna, and is configured to transmit and receive radio waves. The antenna 220 is configured to transmit radio waves mainly in the front direction and to receive radio waves incident from the front direction. The plurality of conductive pins 230 are configured to electrically connect an external electric device of the wireless module 10 to the wireless module 10. By inserting the conductive pins 230 into a socket provided on the electric device, the electric device and the wireless module 10 are electrically connected. Each of the conductive pins 230 is made of, for example, a metal.

[0024] The back member 300 is made of, for example, resin, and includes a back member main body 310 and a plurality of pillars 320. In a plan view, the back member main body 310 has a substantially rectangular shape. The back member main body 310 includes a base 312 and a side wall 314. The base 312 has a planar shape. In addition, the base 312 has a substantially rectangular shape in a plan view. The base 312 has holes H2 and H3. A conductive pin 230 provided on the substrate 200 penetrates each of the holes H2 and H3. The side wall 314 protrudes from the outer periphery of the base 312 toward the front direction. The side wall 314 is formed around the entire outer periphery of the base 312. A pillar 320 is formed near each of the four corners of the base 312. Each pillar 320 extends from the base 312 in the front direction.

[0025] Fig. 3 is a diagram that typically shows a plan view of the wireless module 10. Fig. 4 is a diagram that typically shows a cross section taken along line IV-IV in Fig. 3. With reference to Figs. 3 and 4, the column portion 320 includes a first protruding portion 322 and a second protruding portion 324. The first protruding portion 322 extends in the front direction from the base portion 312 of the back member main body portion 310. The second protruding portion 324 extends in a direction perpendicular to the front direction from the end portion on the front side of the first protruding portion 322.

[0026] Fig. 5 is a perspective view that shows a schematic view of the substrate 200 and the rear surface member 300. Referring to Fig. 5, the substrate 200 is disposed on the rear surface member 300. Each pillar portion 320 of the rear surface member 300 is located adjacent to a different notch N1 of the substrate body 210. More specifically, each pillar portion 320 is located adjacent to the notch N1 to such an extent that the first protrusion portion 322 does not overlap the substrate body 210 and the second protrusion portion 324 overlaps the substrate body 210 in a plan view.

[0027] 3 and 4, the substrate 200 and the front member 100 are sandwiched between the rear member main body 310 and the second protrusion 324. Since the rear member main body 310 and the second protrusion 324 sandwich the substrate 200 and the front member 100, the substrate 200 on which the antenna 220 is mounted is sufficiently fixed, and vibration of the antenna 220 is suppressed.

[0028] FIG. 6 is a diagram showing a schematic view of the back surface of the wireless module 10. As shown in FIG. 6, the wireless module 10 has a substantially rectangular shape having a long side 302 and a short side 304. Each of the holes H2 and H3 formed in the back surface member 300 has a rectangular shape having a long side and a short side. The long side of the hole H2 is parallel to the long side 302 of the wireless module 10, and the short side of the hole H2 is parallel to the short side 304 of the wireless module 10. The long side of the hole H3 is parallel to the short side 304 of the wireless module 10, and the short side of the hole H3 is parallel to the long side 302 of the wireless module 10. A plurality of conductive pins 230 are visible through each of the holes H2 and H3. According to the wireless module 10, since each of the conductive pins 230 protrudes from the holes H2 and H3 of the back surface member 300, it is possible to easily check whether each of the conductive pins 230 is mounted on the board body 210.

[0029] Fig. 7 is a schematic side view of the conductive pin 230 mounted on the substrate body 210. As shown in Fig. 7, the conductive pin 230 includes a first portion 232 and a second portion 234. The first portion 232 extends along the substrate body 210. The second portion 234 extends from an end of the first portion 232 in the rear direction.

[0030] 6 again, a plurality of conductive pins 230 penetrate through each of the holes H2 and H3. The first axis AX1 extends from the center of the long side 302 in the direction in which the short side 304 extends. The second axis AX2 extends from the center of the short side 304 in the direction in which the long side 302 extends. The third axis AX3 connects the diagonal corners of the back member 300. When viewed from the back side of the wireless module 10, the shape formed by the plurality of conductive pins 230 (eight pins) is asymmetric with respect to the first axis AX1, the second axis AX2, and the third axis AX3. According to the wireless module 10, since the shape formed by the plurality of conductive pins 230 is asymmetric with respect to the first axis AX1, the second axis AX2, and the third axis AX3, it is possible to suppress the occurrence of a situation in which the wireless module 10 is connected to an electric device in a state in which the wireless module 10 is connected to the electric device in a wrong orientation with respect to the electric device.

[0031] Moreover, the multiple conductive pins 230 (four pins) penetrating the hole H2 are aligned in a row along the second axis AX2. Moreover, the multiple conductive pins 230 (four pins) penetrating the hole H3 are aligned in a row along the first axis AX1. In each of the multiple conductive pins 230 (four pins) penetrating the hole H2 and the multiple conductive pins 230 (four pins) penetrating the hole H3, the first portions 232 of two adjacent conductive pins 230 extend in opposite directions. For example, with respect to the conductive pins 230A and 230B penetrating the hole H3, the first portion 232 of the conductive pin 230A and the first portion 232 of the conductive pin 230B extend in opposite directions in the direction along the second axis AX2. According to the wireless module 10, the first portions 232 of two adjacent conductive pins 230 among the conductive pins 230 arranged in a row extend in opposite directions to each other, and the load applied to the multiple conductive pins 230 is distributed, thereby ensuring the strength of the multiple conductive pins 230.

[0032] FIG. 8 is a diagram showing a schematic plan view of the substrate 200. Referring to FIG. 8, on the surface of the substrate 200 in the front direction, the antenna 220 is mounted in the center, and a plurality of electronic components 240 are mounted around the antenna 220. When the wavelength of the radio wave output from the antenna 220 is λ, each of the plurality of electronic components 240 is disposed at an interval of (1 / 4)λ or more from the antenna 220. The inventor(s) found that by mounting each electronic component 240 at a position that is ¼ wavelength or more away from the antenna 220, the disturbance of the waveform of the radio wave emitted from the antenna 220 is suppressed. According to the wireless module 10, since each electronic component 240 is disposed at a position that is ¼ wavelength or more away from the antenna 220, the waveform of the radio wave emitted from the antenna 220 can be stabilized.

[0033] Fig. 9 is a diagram for explaining the relationship between the antenna 220 and each of the board body 210 and the front member 100. Referring to Fig. 9, the distance from the antenna 220 to the front member 100 is ¼ wavelength or more. The inventor(s) found that by separating the antenna 220 from the front member 100 by ¼ wavelength or more, disturbance in the waveform of the radio wave emitted from the antenna 220 can be suppressed. According to the wireless module 10, the board 200 is disposed at a position separated by ¼ wavelength or more from the front member 100, so that the waveform of the radio wave emitted from the antenna 220 can be stabilized.

[0034] Moreover, the thickness of the bulge 110 of the front member 100 is not uniform. More specifically, the thickness of the bulge 110 is designed so that the length through which the radio waves output by the antenna 220 penetrate is constant. For example, the thickness of the bulge 110 is designed so that the lengths L1, L2, and L3 are uniform. This makes it possible to suppress disturbance of the waveform of the radio waves.

[0035] The board body 210 also includes insulating layers 211, 213, and 215, a ground layer 212, and a wiring layer 214. The ground layer 212 is a metal layer that supplies a ground potential. The wiring layer 214 is a layer on which various wirings are mounted. In the board body 210, the insulating layer 211, the ground layer 212, the insulating layer 213, the wiring layer 214, and the insulating layer 215 are laminated in this order from the front side to the rear side. That is, in the board body 210, the ground layer 212 is disposed closer to the antenna 220 than the wiring layer 214. This makes it possible to stabilize the waveform of the radio waves emitted from the antenna 220.

[0036] [3. Wireless module assembly procedure] FIG. 10 is a diagram for explaining the assembly procedure of the wireless module 10. First, referring to the diagram shown in the upper part of FIG. 10, the front member 100 and the rear member 300 on whose front surface the substrate 200 is arranged are prepared. Next, referring to the diagram shown in the center of FIG. 10, the front member 100 is attached to the rear member 300 by penetrating the column portion 320 of the rear member 300 into the hole H1 of the front member 100. Note that at this stage, the first protrusion 322 and the second protrusion 324 are not formed on each column portion 320, and each column portion 320 is a column with a uniform thickness. Next, referring to the diagram shown in the lower part of FIG. 10, the column portion 320 is melted to form the first protrusion 322 and the second protrusion 324 on the column portion 320. As a result, the second protrusion 324 of the column portion 320 and the rear member main body portion 310 sandwich the front member 100 and the substrate 200 (see FIG. 4). Through the above steps, the wireless module 10 is assembled.

[0037] [4. Examples of installation on electrical equipment] 11 is a block diagram showing an example of an electrical configuration of an electric device 20 equipped with a wireless module 10. The electric device 20 is, for example, an LED (Light Emitting Diode) lighting device.

[0038] As shown in FIG. 11, the wireless module 10 is attached to the electric device 20. In addition to the wireless module 10, the electric device 20 includes an operating unit 21, an operation unit 22, a power supply unit 23, and a control unit 24. The operating unit 21 is configured to realize the main functions of the electric device 20. When the electric device 20 is an LED lighting device, the operating unit 21 is configured to receive instructions from a user. When the electric device 20 is an LED lighting device, the operation unit 22 is configured to receive instructions from a user. When the electric device 20 is an LED lighting device, the operation unit 22 is configured to receive instructions from a user. The power supply unit 23 is configured to supply power to each unit of the electric device 20. The control unit 24 includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and is configured to control each unit of the electric device 20.

[0039] For example, when a human movement is detected via the wireless module 10, the control unit 24 controls the operating unit 21 to start operation. Also, when a predetermined time has elapsed since the human movement was no longer detected, the control unit 24 controls the operating unit 21 to stop operation. This makes it possible to suppress unnecessary operation of the electric device 20.

[0040] [5. Features] As described above, in the wireless module 10 according to the present embodiment, the substrate 200 and the front member 100 are sandwiched between the rear member main body 310 and the second protrusions 324. Therefore, according to the wireless module 10, the rear member main body 310 and the second protrusions 324 formed at the four corners of the rear member main body 310 sandwich the four corners of the substrate 200 where the notches N1 are formed and the four corners of the front member 100, so that it is possible to suppress vibration of the substrate 200 on which the antenna 220 is mounted. As a result, according to the wireless module 10, it is possible to suppress a decrease in the accuracy of detection of the movement of an object by the antenna 220.

[0041] Furthermore, in the wireless module 10, the multiple conductive pins 230 protrude in the rear direction from the holes H2, H3. Therefore, according to the wireless module 10, since the multiple conductive pins 230 protrude from the holes H2, H3 of the rear member main body portion 310, it is possible to easily check whether the multiple conductive pins 230 are mounted on the board main body 210.

[0042] Moreover, in the wireless module 10, when viewed from the rear side, the shape formed by the multiple conductive pins 230 is asymmetric with respect to each of the first axis AX1, the second axis AX2, and the third axis AX3. Therefore, the wireless module 10 can prevent the wireless module 10 from being connected to an electric device in an incorrect orientation with respect to the electric device.

[0043] Furthermore, in the wireless module 10, when viewed from the rear side, at least some of the multiple conductive pins 230 are arranged in a row, and the first portions 232 of two adjacent conductive pins 230 among the conductive pins 230 arranged in a row extend in opposite directions. Therefore, according to the wireless module 10, the load applied to each conductive pin 230 is distributed, so that the strength of each conductive pin 230 can be ensured.

[0044] Moreover, in the electric device 20 according to the present embodiment, control is executed based on the detection result of the wireless module 10. Therefore, according to the electric device 20, control is executed based on the detection result of the wireless module 10, so that appropriate device control according to the operation of the detection target can be realized.

[0045] [6. Other embodiments] The concept of the above embodiment is not limited to the embodiment described above. Hereinafter, an example of another embodiment to which the concept of the above embodiment can be applied will be described.

[0046] <6-1> In the above embodiment, a plurality of conductive pins 230 are mounted on the surface on the rear side of the board body 210. However, the connection portion connected to the electric device may be realized by a connector.

[0047] <6-2> In the above embodiment, a Doppler radar is given as an example of the wireless module 10, but the wireless module 10 may be a radio wave radar of the FMCW (Frequency Modulated Continuous Wave) type.

[0048] <6-3> In the above embodiment, an LED light is given as an example of the electric device 20, but the electric device 20 may be a heating device, an air conditioning device, etc. In these electric devices, for example, human detection using a radio radar may be performed, and control may be executed so as not to waste power when no one is present.

[0049] <6-4> In the above embodiment, when viewed from the rear side, the shape formed by the multiple conductive pins 230 is asymmetric with respect to each of the first axis AX1, the second axis AX2, and the third axis AX3. However, the shape formed by the multiple conductive pins 230 does not necessarily have to be asymmetric with respect to each of the first axis AX1, the second axis AX2, and the third axis AX3. It is sufficient that the shape formed by the multiple conductive pins 230 is asymmetric with respect to at least one of the first axis AX1, the second axis AX2, and the third axis AX3.

[0050] The above describes the embodiments of the present invention by way of example. That is, the detailed description and the accompanying drawings are disclosed for the purpose of illustrative description. Therefore, some components described in the detailed description and the accompanying drawings may be non-essential components for solving the problem. Therefore, just because the non-essential components are described in the detailed description and the accompanying drawings, it should not be immediately determined that the non-essential components are essential.

[0051] Moreover, the above-described embodiments are merely examples of the present invention in every respect. Various improvements and modifications of the above-described embodiments are possible within the scope of the present invention. For example, at least a part of the configuration of any of the embodiments may be combined with at least a part of the configuration of any of the other embodiments. In other words, in implementing the present invention, specific configurations can be appropriately adopted according to the embodiment. [Explanation of symbols]

[0052] 10 wireless module, 20 electrical equipment, 21 operating section, 22 operating section, 23 power supply section, 24 control section, 100 front member, 110 bulge section, 120 flange section, 200 substrate, 210 substrate main body, 211, 213, 215 insulating layer, 212 ground layer, 214 wiring layer, 220 antenna, 230 conductive pin, 232 first portion, 234 second portion, 240 electronic component, 300 rear member, 302 long side, 304 short side, 310 rear member main body, 312 base, 314 side wall, 320 pillar section, 322 first protrusion, 324 second protrusion, AX1 first axis, AX2 second axis, AX3 third axis, H1, H2, H3 hole, N1 notch.

Claims

1. A wireless module configured to output radio waves, A substrate on which an antenna is mounted; a housing configured to house the substrate; The housing includes a back member and a front member, A space is formed between the rear member and the front member, The substrate is located in the space, a notch is formed at each of a plurality of locations on the peripheral edge of the substrate; The back member includes a planar back member main body and a plurality of pillars, Each of the plurality of pillar portions is adjacent to one of the notches, Each of the plurality of pillars includes a first protruding portion extending from the back surface member main body in a front direction and a second protruding portion extending from the first protruding portion in a direction perpendicular to the front direction, The substrate and the front member are sandwiched between the rear member main body and the second protrusion.

2. The antenna is mounted on a first surface of the substrate, a connection portion for electrically connecting an electric device outside the wireless module to the wireless module is mounted on a second surface of the board; An opening is formed in the back member main body, The wireless module according to claim 1 , wherein the connection portion protrudes from the opening toward a rear surface.

3. When viewed from the rear side, the rear member has a rectangular shape including long sides and short sides, 3. The wireless module according to claim 2, wherein when viewed from the rear side, the shape of the connection portion is asymmetric with respect to at least one of a first axis extending from the center of the long side in the direction in which the short side extends, a second axis extending from the center of the short side in the direction in which the long side extends, and a third axis connecting diagonal corners of the rectangle.

4. The connection portion is constituted by a plurality of conductive pins, Each of the plurality of conductive pins includes a first portion extending along the substrate and a second portion extending from the first portion toward a rear surface thereof; 4. The wireless module according to claim 2, wherein when viewed from the rear side, at least a portion of the plurality of conductive pins are arranged in a row, and the first portions of two adjacent conductive pins among the conductive pins arranged in the row extend in opposite directions.

5. A wireless module according to any one of claims 1 to 3, The wireless module is configured to detect a motion of a detection target; The electrical device further comprises a control unit configured to execute control based on a detection result of the wireless module.

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