JP5950204B2 - Wireless communication module - Google Patents

Description

  The present invention relates to a wireless communication module.

  2. Description of the Related Art Conventionally, there is a wireless communication module in which an antenna and a circuit board are built in a housing and wireless communication with an external device is performed (for example, see Patent Document 1). 10A, 10B, and 10C are schematic configuration diagrams of a conventional wireless communication module. In the following description, the up / down / left / right direction in FIG. 10 (a) is defined as the up / down / left / right direction, and the direction orthogonal to the up / down / left / right direction is defined as the front / rear direction. 10A is an exploded perspective view of a conventional wireless communication module, FIG. 10B is an external perspective view of the conventional wireless communication module, and FIG. 10C is an external view from the front side of the conventional wireless communication module. It is.

  A conventional wireless communication module mainly includes a housing 1, a circuit board 2, and an antenna 3.

  The housing 1 includes a rectangular box-shaped first structure 11 having an upper surface opened, and a rectangular box-shaped second structure 12 having a lower surface opened. The lower surface of the first structure 11 and the upper surface of the second structure 12 are formed in substantially the same shape. Moreover, the vertical dimension of the first structure 11 and the second structure 12 is formed substantially the same. And the 2nd structure 12 is combined so that the opening of the 1st structure 11 may be covered, and the rectangular-shaped housing | casing 1 is comprised, The rectangular-shaped space is also formed inside the housing | casing 1. FIG. doing. In the housing 1, the circuit board 2 and the antenna 3 are built.

  The circuit board 2 is mounted with an antenna 3 and circuit elements (not shown) constituting a control unit, a power source unit 21 and the like for performing wireless communication with an external device using the antenna 3. The circuit board 2 is formed in a rectangular plate shape, and is mounted on the lower surface of the first structure 11 so as to be substantially parallel to the lower surface of the first structure 11 (the upper surface of the second structure 12). It is housed in the housing 1 in a placed state.

  The antenna 3 is mounted on the circuit board 2 by forming a protruding portion 31 and a main body portion 32 by bending a linear conductor into an L shape.

  The protrusion 31 is mounted on the mounting surface (upper surface) of the circuit board 2. Specifically, the protruding portion 31 is mounted so as to protrude upward from the vicinity of the left end at the approximate center in the front-rear direction of the mounting surface of the circuit board 2.

  The main body 32 is bent 90 degrees rightward from the tip (upper end) of the protrusion 31 and is formed to be substantially horizontal with the circuit board 2.

Then, as shown in FIG. 10 (b), the circuit board 2 where the antenna 3 is mounted on the first structure 11 is accommodated, by combining the second structure 12 to the first structure 11 The circuit board 2 and the antenna 3 are built in the housing 1.

  The wireless communication module configured as described above performs wireless communication with an external device by transmitting or receiving radio waves using the antenna 3.

JP 2007-299803 A

  The housing 1 includes a first structure 11 and a second structure 12, and the first structure 11 and the second structure 12 are combined on the side surface of the housing 1. A mating portion 13 is formed. The mating portion 13 is a joint between the first structure 11 and the second structure 12, and therefore has a lower insulating property than other portions of the housing 1. In addition, the mating portion 13 is formed on the side surface of the housing 1 that faces the peripheral surface of the protruding portion 31 of the antenna 3.

  For this reason, a discharge potential due to static electricity is applied from the mating portion 13 to the projecting portion 31, that is, static electricity that has entered the housing 1 through the mating portion 13 may be applied to the projecting portion 31. When static electricity is applied to the protrusions 31, static electricity is also applied to the circuit elements mounted on the circuit board 2, and the circuit elements may be damaged.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide a wireless communication module capable of preventing static electricity applied to a protruding portion of an antenna via a matching portion of a casing. is there.

The wireless communication module of the present invention is a combination of a plurality of structures, so that a casing that forms a space therein, a circuit element is mounted, a circuit board built in the casing, and the mounting of the circuit board An antenna comprising a protrusion protruding from a surface in a first direction along the thickness direction of the circuit board, and a main body extending from the tip of the protrusion in a second direction along the mounting surface The housing is formed with a mating portion where the structures are combined on an opposing surface facing the peripheral surface of the projecting portion, and is insulated between only the projecting portion and the opposing surface of the antenna. It is characterized by the presence of a body.

  In this wireless communication module, it is preferable that the protrusion is covered with the insulator.

  In this wireless communication module, it is preferable that the protrusion is coated with the insulator.

  In this wireless communication module, it is preferable that the insulator is provided in a state of being separated from the protruding portion.

The wireless communication module of the present invention is a combination of a plurality of structures, so that a casing that forms a space therein, a circuit element is mounted, a circuit board built in the casing, and the mounting of the circuit board A protrusion protruding from a surface in a first direction along the thickness direction of the circuit board, and extending from a tip of the protrusion in a second direction different from the first direction along the mounting surface. An antenna composed of a main body, and the housing is formed with a mating portion where the structural bodies are combined with each other on a facing surface facing the peripheral surface of the projecting portion, and facing only the projecting portion of the antenna. A conductor electrically connected to the ground of the circuit board is interposed between the surface and the surface.

  The wireless communication module preferably includes a coaxial cable or a semi-rigid cable having an inner conductor that constitutes the protruding portion and the main body portion and an outer conductor that constitutes the conductor.

  In the wireless communication module, each of the pair of structures to be combined includes a protruding fitting portion and a fitted portion to which the fitting portion is fitted, and the fitting portion is attached to one of the structures. The fitting portion to be formed and the fitting portion formed on the other structure body are fitted together, and the fitting portion and the fitting portion are formed with a thickness of the structure body. It is preferable to be provided side by side in the direction.

  In this wireless communication module, among the plurality of facing surfaces facing the peripheral surface of the projecting portion, the facing surface closest to the projecting portion is formed by combining the first structure and the second structure. Preferably, the first structure is formed with a convex portion that fits into a concave portion formed in the second structure, and the convex portion is opposed to the protruding portion.

  In this wireless communication module, the housing includes a box-shaped first structure having an opening on one surface and a second structure that covers the opening of the first structure, and the periphery of the projecting portion. In all of the plurality of facing surfaces facing the surface, it is preferable that the mating portion where the first structure body and the second structure body are combined does not face the protruding portion.

  As described above, the present invention has an effect of preventing static electricity applied to the projecting portion of the antenna through the mating portion of the housing.

(A) (b) (c) It is a schematic block diagram of the radio | wireless communication module of Embodiment 1 of this invention. It is a schematic block diagram of the radio | wireless communication module of another structure same as the above. It is a schematic block diagram of the radio | wireless communication module of another structure same as the above. 6 is a schematic configuration diagram of a wireless communication module according to Embodiment 2. FIG. It is a schematic block diagram of the radio | wireless communication module of another structure same as the above. (A) (b) It is a schematic block diagram of the radio | wireless communication module of Embodiment 3. FIG. (A) (b) (c) It is a schematic block diagram of the radio | wireless communication module of Embodiment 4. FIG. (A) (b) (c) It is a schematic block diagram of the radio | wireless communication module of Embodiment 5. FIG. (A) (b) (c) It is a schematic block diagram of the radio | wireless communication module of another structure same as the above. (A) (b) (c) It is a schematic block diagram of the conventional radio | wireless communication module.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
1A, 1B and 1C are schematic configuration diagrams of the wireless communication module of the present embodiment. In the following description, the vertical and horizontal directions in FIG. 1A are defined as vertical and horizontal directions, and the direction orthogonal to the vertical and horizontal directions is defined as the longitudinal direction. 1 (a) is an exploded perspective view of the wireless communication module of the present embodiment, and FIG. 1 (b) is an external perspective view of the wireless communication module of the present embodiment, FIG. 1 (c) of the wireless communication module of the present embodiment It is an external view from the front side.

  The wireless communication module according to the present embodiment is configured to perform wireless communication with an external device by transmitting or receiving radio waves using the antenna 3 with the casing 1, the circuit board 2, the antenna 3, and the insulator 4 as main components. is there.

  The housing 1 includes a rectangular box-shaped first structure 11 having an upper surface opened, and a rectangular box-shaped second structure 12 having a lower surface opened. The lower surface of the first structure 11 and the upper surface of the second structure 12 are formed in substantially the same shape. Moreover, the vertical dimension of the first structure 11 and the second structure 12 is formed substantially the same. And the 2nd structure 12 is combined so that the opening of the 1st structure 11 may be covered, and the rectangular-shaped housing | casing 1 is comprised, The rectangular-shaped space is also formed inside the housing | casing 1. FIG. doing. And inside this housing | casing 1, the circuit board 2, the antenna 3, and the insulator 4 are incorporated.

  The circuit board 2 is mounted with an antenna 3 and circuit elements (not shown) constituting a control unit, a power source unit 21 and the like for performing wireless communication with an external device using the antenna 3. The circuit board 2 is formed in a rectangular plate shape, and is mounted on the lower surface of the first structure 11 so as to be substantially parallel to the lower surface of the first structure 11 (the upper surface of the second structure 12). It is housed in the housing 1 in a placed state.

  The antenna 3 is mounted on the circuit board 2 by forming a protruding portion 31 and a main body portion 32 by bending a linear conductor into an L shape.

  The protrusion 31 is mounted on the mounting surface (upper surface) of the circuit board 2. Specifically, the protruding portion 31 is mounted so as to protrude upward (first direction) from the vicinity of the left end at the approximate center in the front-rear direction of the mounting surface of the circuit board 2.

  The main body 32 is bent 90 degrees rightward (second direction) from the tip (upper end) of the protrusion 31 and is formed to be substantially horizontal with the circuit board 2.

  The insulator 4 is made of a material having high electrical insulation, such as polyethylene, and covers the peripheral surface of the protruding portion 31 made of a conductor.

Then, as shown in FIG. 1 (b), the circuit board 2 where the antenna 3 is mounted on the first structure 11 is accommodated, by combining the second structure 12 to the first structure 11 The circuit board 2, the antenna 3, and the insulator 4 are built in the housing 1.

  Here, as shown in FIG. 1C, the side surfaces (front surface, rear surface, left surface, right surface) of the housing 1 face (overlap) the peripheral surface of the protruding portion 31 of the antenna 3 when viewed from the side surface. It becomes the opposite surface. Further, on each side surface of the housing 1, a mating portion 13 in which the first and second structures 11 and 12 are combined is formed, and this mating portion 13 is also formed on the peripheral surface of the protruding portion 31 of the antenna 3. Opposite.

  In the conventional wireless communication module, static electricity enters from the mating portion 13 and is applied to the protruding portion 31 facing the mating portion 13, which may damage the circuit elements on the circuit board 2. However, in the wireless communication module of this embodiment, the peripheral surface of the protruding portion 31 is covered with the insulator 4. The insulator 4 can prevent static electricity that has entered from the mating portion 13 of the housing 1 from being applied to the protruding portion 31. Therefore, it is possible to prevent static electricity from being applied to the circuit elements on the circuit board 2 through the protrusions 31 and to prevent damage to the circuit elements due to static electricity.

  In the present embodiment, only the protruding portion 31 is covered with the insulator 4, but the main body portion 32 may also be covered with the insulator 4.

  Moreover, in this embodiment, although the protrusion part 31 is coat | covered with the insulator 4, it is not limited to a coating | cover. For example, the same effect as described above can be obtained by coating the protrusion 31 with the insulator 4. Alternatively, as shown in FIG. 2, the insulator 4 is formed in a cylindrical shape and mounted on the circuit board 2 so that the protruding portion 31 penetrates inside, and the peripheral surface of the protruding portion 31 is separated from the protruding portion 31. The same effect as described above can be obtained by enclosing the frame.

  Further, the protruding portion 31 can also be formed by interposing the insulator 4 only between the left surface closest to the protruding portion 31 and the protruding portion 31 among the side surfaces of the housing 1 facing the peripheral surface of the protruding portion 31 of the antenna 3. The application of static electricity to can be effectively prevented. For example, as shown in FIG. 3, the insulator 4 formed in a semi-cylindrical shape is mounted on the circuit board 2 so as to cover the left side of the protruding portion 31, and protrudes with the mating portion 13 formed on the left surface of the housing 1. The insulator 4 is interposed between the part 31. Thereby, it is possible to prevent static electricity from being applied to the circuit elements on the circuit board 2 through the protrusions 31 and to prevent damage to the circuit elements due to static electricity.

  In addition, although the antenna 3 of this embodiment is comprised by the linear L-shaped antenna, you may be comprised by the inverted F type antenna which formed the protrusion part 31 and the main-body part 32 in plate shape.

(Embodiment 2)
FIG. 4 shows a schematic configuration diagram of the wireless communication module of the present embodiment. The wireless communication module of the present embodiment has a casing 1, a circuit board 2, an antenna 3, and a conductor 5 as main components. In addition, the same code | symbol is attached | subjected to the structure similar to Embodiment 1, and description is abbreviate | omitted.

  The wireless communication module of this embodiment is characterized in that the protruding portion 31 of the antenna 3 is surrounded by the conductor 5.

  The conductor 5 is formed in a cylindrical shape with a conductive material, and is mounted on the circuit board 2 so that the protruding portion 31 penetrates the conductor 5, and the peripheral surface of the protruding portion 31 is separated from the protruding portion 31. Surrounding. The conductor 5 is electrically connected to the ground of the circuit board 2.

  Thus, in the present embodiment, the protruding portion 31 is surrounded by the conductor 5 electrically connected to the ground of the circuit board 2, and static electricity that has entered from the mating portion 13 of the housing 1 is caused by the conductor 5. Application to the protruding portion 31 can be prevented. Therefore, it is possible to prevent static electricity from being applied to the circuit elements on the circuit board 2 through the protrusions 31 and to prevent damage to the circuit elements due to static electricity.

  Further, even if the conductor 5 is interposed only between the left surface closest to the projecting portion 31 and the projecting portion 31 among the side surfaces of the housing 1 facing the peripheral surface of the projecting portion 31 of the antenna 3, The application of static electricity can be effectively prevented. For example, as shown in FIG. 5, the conductor 5 formed in a semi-cylindrical shape is mounted on the circuit board 2 so as to cover the left side of the protruding portion 31, and the mating portion 13 and the protruding portion formed on the left surface of the housing 1. A conductor 5 is interposed between the conductor 31 and the terminal 31. Thereby, it is possible to prevent static electricity from being applied to the circuit elements on the circuit board 2 through the protrusions 31 and to prevent damage to the circuit elements due to static electricity.

  Moreover, you may comprise the antenna 3 and the conductor 5 using a coaxial cable or a semi-rigid cable. In this case, the same effect as described above can be obtained by configuring the protruding portion 31 and the main body portion 32 of the antenna 3 with the inner conductor of the coaxial cable or the semi-rigid cable and configuring the conductor 5 with the outer conductor. Further, by using a coaxial cable or a semi-rigid cable, the configuration of the antenna 3 and the conductor 5 can be simplified and the cost can be reduced.

(Embodiment 3)
6A and 6B are schematic configuration diagrams of the wireless communication module according to the present embodiment. 6A is an external perspective view of the wireless communication module of the present embodiment, and FIG. 6B is an enlarged view of the mating portion 13. Note that FIG. 6B illustrates a state where the first structure body 11 and the second structure body 12 are separated from each other in order to clarify the configuration.

  In the wireless communication module of the present embodiment, the first rib 111 and the first notch 112 are formed in the first structure 11, and the second rib 121 and the second notch are formed in the second structure 12. 122 is formed. In addition, the circuit board 2, the antenna 3, and the insulator 4 of the first embodiment (not shown) or the conductor 5 of the second embodiment (not shown) are built in the housing 1, and the same configuration as that of the first and second embodiments has the same configuration. The reference numerals are attached and the description is omitted.

  The first structure 11 is formed with a first rib 111 (fitting portion) and a first notch 112 (fitted portion) on an upper edge 11 a that is joined to the lower edge 12 a of the second structure 12. ing. The first rib 111 and the first notch 112 are provided side by side in the thickness direction of the first structure 11. The first rib 111 is formed at the upper edge 11 a of the first structure 11 so as to protrude upward along the inner surface of the first structure 11. The first notch 112 is formed outside the first rib 111.

  The second structure 12 has a second rib 121 (fitting portion) and a second notch 122 (fitted portion) formed on the lower edge 12a that is combined with the upper edge 11a of the first structure 11. ing. The second rib 121 and the second notch 122 are provided side by side in the thickness direction of the second structure 12. The second rib 121 is formed at the lower edge 12 a of the second structure 12 so as to protrude downward along the outer surface of the second structure 12. The second notch 122 is formed inside the second rib 121.

  Then, when the first structure 11 and the second structure 12 are combined, the first rib 111 and the second notch 122 are fitted together, and the second rib 121 and the first notch 121 are fitted together. And the mating portion 13 is formed.

  Thus, in the present embodiment, the creeping distance of the mating portion 13 in the thickness direction of the housing 1 is larger than that of the conventional case by the first and second ribs 111 and 121 and the first and second notches 112 and 122. become longer. This makes it difficult for static electricity to enter the housing 1 via the mating portion 13, thereby further preventing static electricity from being applied to the protruding portion 31. Therefore, it is possible to improve the effect of preventing the circuit element from being damaged by static electricity.

(Embodiment 4)
7A, 7B, and 7C are schematic configuration diagrams of the wireless communication module of the present embodiment. 7A is an exploded perspective view of the wireless communication module of the present embodiment, FIG. 7B is an external perspective view of the wireless communication module of the present embodiment, and FIG. 7C is a wireless view of the present embodiment. It is an external view from the left side of a communication module.

  The wireless communication module of the present embodiment is characterized in that a convex portion 113 is formed on the left surface 11 b of the first structure 11 and a concave portion 123 is formed on the left surface 12 b of the second structure 12. In addition, the circuit board 2, the antenna 3, and the insulator 4 of the first embodiment (not shown) or the conductor 5 of the second embodiment (not shown) are built in the housing 1, and the same configuration as that of the first and second embodiments has the same configuration. The reference numerals are attached and the description is omitted.

  The wireless communication module according to the present embodiment is convex on the left surface 11b of the first structure 11 constituting the left surface closest to the protruding portion 31 among the side surfaces of the housing 1 facing the peripheral surface of the protruding portion 31 of the antenna 3. A portion 113 is formed, and a recess 123 is formed on the left surface 12 b of the second structure 12.

  The convex portion 113 is formed in a rectangular plate shape that protrudes upward from the approximate center in the front-rear direction at the upper edge of the left surface 11 b of the first structure 11. As shown in FIG. 7C, the convex portion 113 faces the peripheral surface of the protruding portion 31 when the circuit board 2 and the antenna 3 are built in the housing 1.

  The concave portion 123 is configured by a rectangular cutout formed from a substantially center in the front-rear direction on the lower edge of the left surface 12b of the second structure 12 toward the upper direction. When the second structural body 12 is combined, the concave portion 123 is fitted into the convex portion 113.

  Thus, in this embodiment, the convex part 113 which opposes the protrusion part 31 is formed in the 1st structure 11, and the recessed part 123 by which the convex part 113 is fitted by the 2nd structure 12 is formed. As a result, of the side surfaces of the housing 1 facing the peripheral surface of the protruding portion 31, the mating portion 13 formed on the left surface closest to the protruding portion 31 bypasses the portion facing the protruding portion 31. That is, the mating portion 13 formed on the left surface of the housing 1 does not face the projecting portion 31, and the distance between the mating portion 13 and the projecting portion 31 is longer than the conventional one. The static electricity applied to 31 can be prevented more effectively. This can improve the effect of preventing circuit elements from being damaged by static electricity.

(Embodiment 5)
8A, 8B, and 8C are schematic configuration diagrams of the wireless communication module of the present embodiment. 8A is an exploded perspective view of the wireless communication module of the present embodiment, FIG. 8B is an external perspective view of the wireless communication module of the present embodiment, and FIG. 8C is a wireless view of the present embodiment. It is an external view from the front side of a communication module.

  The wireless communication module of the present embodiment is characterized in that the mating portion 13 formed on the side surface of the housing 1 that faces the peripheral surface of the protruding portion 31 of the antenna 3 does not face the protruding portion 31. In addition, the circuit board 2, the antenna 3, and the insulator 4 of the first embodiment (not shown) or the conductor 5 of the second embodiment (not shown) are built in the housing 1, and the same configuration as that of the first and second embodiments has the same configuration. The reference numerals are attached and the description is omitted.

  The first structure 11 of the present embodiment has a side surface whose vertical dimension is longer than those of the first to fourth embodiments, and is formed in a rectangular box shape that can accommodate the circuit board 2 and the antenna 3 as a whole. . As shown in FIG. 8C, the upper edge of the first structure 11 is positioned above the upper end of the protruding portion 31 when the circuit board 2 and the antenna 3 are housed in the first structure 11. doing.

  In addition, the second structure 12 of the present embodiment is formed in a lid shape whose side dimension in the vertical direction is shorter than those of the first to fourth embodiments, and covers the opening of the first structure 11. In addition, the dimension of the up-down direction of the housing | casing 1 which combined the 1st structure 11 and the 2nd structure 12 is formed so that it may be the same as Embodiment 1-4.

  As described above, in the present embodiment, the vertical dimension of the first structure 11 is formed long so that the entire circuit board 2 and the antenna 3 can be accommodated, so that the mating portion 13 is the tip of the protruding portion 31. It is located above (upper end). That is, in all the side surfaces of the housing 1 facing the peripheral surface of the protruding portion 31, the mating portion 13 does not face the projecting portion 31, and the distance between the mating portion 13 and the projecting portion 31 becomes longer than before. Thereby, the static electricity applied to the protrusion part 31 via the matching part 13 can be prevented more effectively. Therefore, it is possible to improve the effect of preventing the circuit element from being damaged by static electricity.

  In addition, since the said effect can be acquired if the matching part 13 does not oppose the protrusion part 31, as shown to Fig.9 (a) (b) (c), the adjustment part 13 is rather than the lower end of the protrusion part 31. You may comprise so that it may be located below. In this case, the first structure 11 is formed in a dish-like shape with a short vertical dimension, and the second structure 12 is formed with a long vertical dimension to cover the entire circuit board 2 and antenna 3. To do. Even in this configuration, the mating portion 13 is positioned below the lower end of the projecting portion 31 on all the side surfaces of the housing 1 facing the peripheral surface of the projecting portion 31, so that the mating portion 13 is the projecting portion. The effect similar to the above can be obtained.

DESCRIPTION OF SYMBOLS 1 Case 2 Circuit board 3 Antenna 4 Insulator 11 1st structure 12 2nd structure 13 Matching part 31 Protrusion part 32 Main-body part

Claims (9)

A housing that forms a space inside by combining a plurality of structures,
A circuit board on which a circuit element is mounted and built in the housing;
A protruding portion that protrudes from the mounting surface of the circuit board in a first direction along the thickness direction of the circuit board, and a main body portion that extends from the tip of the protruding portion in a second direction along the mounting surface With an antenna composed of
The casing is formed with a mating portion in which the structures are combined with each other on a facing surface facing the peripheral surface of the protruding portion.
A wireless communication module, wherein an insulator is interposed between only the protruding portion of the antenna and the facing surface.   The wireless communication module according to claim 1, wherein the protrusion is covered with the insulator.   The wireless communication module according to claim 1, wherein the protrusion is coated with the insulator.   The wireless communication module according to claim 1, wherein the insulator is provided in a state of being separated from the protrusion. A housing that forms a space inside by combining a plurality of structures,
A circuit board on which a circuit element is mounted and built in the housing;
A protruding portion that protrudes from the mounting surface of the circuit board in a first direction along the thickness direction of the circuit board, and a main body portion that extends from the tip of the protruding portion in a second direction along the mounting surface With an antenna composed of
The casing is formed with a mating portion where the structures are combined with each other on a facing surface facing the peripheral surface of the protruding portion,
A wireless communication module, wherein a conductor electrically connected to a ground of the circuit board is interposed between only the protruding portion of the antenna and the facing surface.   6. The wireless communication module according to claim 5, further comprising a coaxial cable or a semi-rigid cable having an inner conductor that constitutes the protruding portion and the main body portion and an outer conductor that constitutes the conductor. Each of the pair of structures to be combined includes a protruding fitting portion and a fitted portion to which the fitting portion is fitted,
The mating portion is formed by fitting the fitting portion formed in one of the structures and the fitted portion formed in the other structure,
The wireless communication module according to claim 1, wherein the fitting portion and the fitted portion are provided side by side in a thickness direction of the structure. Of the plurality of facing surfaces facing the peripheral surface of the protruding portion, the facing surface closest to the protruding portion is configured by combining the first structure and the second structure,
The first structure is formed with a convex portion that is fitted into a concave portion formed in the second structural body, and the convex portion faces the protruding portion. The wireless communication module according to any one of the above. The casing is configured by a box-shaped first structure having an opening on one surface, and a second structure covering the opening of the first structure,
In all of the plurality of facing surfaces facing the peripheral surface of the protruding portion, the mating portion in which the first structure and the second structure are combined does not face the protruding portion. The wireless communication module according to any one of claims 1 to 7.

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