JP2016111114A - Radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication device which achieves high durability while maintaining the heat radiation efficiency of a radio communication module.SOLUTION: A radio communication device 1 includes a box shaped housing 100 and a radio communication module housed in the housing 100. One or more heat radiation slits 151 are formed on a side surface of the housing 100. The radio communication device 1 includes cover members 160, each of which covers the slit 151 while securing air permeability between the interior and exterior of the housing 100 with the slit 151, at opening positions of the slits 151.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wireless communication apparatus in which a wireless communication module is housed in a box-shaped housing.

  This type of wireless communication apparatus is used in fields such as telemetering and telematics. A typical example is a vending machine management system in which a wireless communication device is installed in a vending machine, and the main control device of the vending machine transmits sales data of the vending machine, payment information of electronic money, etc. to a management server. It has been known. Other examples include a parking lot management system and a water flow management system.

  The wireless communication device incorporates a wireless communication module and a control board in a housing (see Patent Document 1). This wireless communication module is a device corresponding to a data circuit-terminating equipment. Therefore, the system can be constructed even if the wireless communication module is directly mounted on a utilization device such as a main controller of the vending machine. However, wireless communication standards and specifications vary depending on the type of carrier or module. Therefore, if the equipment used is designed to be compatible with a certain wireless communication module, it will become a carrier / provided service / model. There is a problem that it is difficult to cope with changes and the like. One of the reasons for such a change is that the lifetime of the entire system is shorter than the product cycle of wireless communication. On the other hand, depending on the system, unique functions and specifications may be required for wireless communication. Therefore, a wireless communication device incorporates a wireless communication module and a control device, and the control device absorbs the difference between carriers and provided services and models, or adds system-specific functions, thereby reducing the cost. We are working to reduce and enhance convenience. As described above, the wireless communication device has a built-in wireless communication module that is a data line termination device. However, the wireless communication device is configured so that the entire wireless communication device appears to be one data line termination device. Yes.

JP 2008-28622 A

  By the way, the wireless communication module housed in the housing generally has high heat generation. For this reason, in the wireless communication device, the heat dissipation structure of the housing is an important issue. When attention is paid only to the heat radiation efficiency, it is conceivable to form a large number of heat radiation holes in the housing. However, this type of wireless communication device is often housed in equipment installed outdoors, and comprehensive durability such as prevention of foreign matter contamination, dust resistance, and water resistance is regarded as important. For this reason, it is difficult to maintain high durability of the wireless communication device simply by forming a large number of heat radiation holes in the housing.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a wireless communication device having high durability while maintaining the heat dissipation efficiency of the wireless communication module.

  In order to achieve the above object, the present invention provides a wireless communication apparatus including a box-shaped housing and a wireless communication module accommodated in the housing. A slit is formed, and an opening position of the slit is provided with a covering member that covers the slit while ensuring air permeability inside and outside the casing by the slit.

  According to the present invention, since the heat dissipation of the wireless communication module is ensured by the slit and the foreign material is prevented from being mixed by the covering member, the durability is improved.

  As an example of a preferable aspect of the present invention, the covering member includes a covering piece that covers the entire surface of the slit and a holding piece that holds the covering piece. In the case of such an embodiment, more specifically, the slit is formed in a long hole shape whose longitudinal direction is the thickness direction of the side surface of the housing, and the holding piece is attached to the long side of the slit. It is done. More specifically, the covering member has a substantially L-shaped cross section.

  Moreover, as another example of the preferred embodiment of the present invention, there may be mentioned one provided with a shielding member for closing the slit of the housing so as to be freely opened and closed. According to the present invention, the heat radiation capacity from the housing can be adjusted according to the installation environment of the wireless communication device and the amount of heat generated in the housing, and when the slit is closed, the dust resistance and water resistance are improved. The durability according to etc. can be acquired.

  Further, as another example of a preferred aspect of the present invention, a first slit is formed on a side surface of the casing located at the first corner of the casing, and the casing has a first slit. A case in which the second slit is formed on the side surface of the housing located at the second corner portion that is point-symmetrical with respect to the center portion. According to the present invention, when the wireless communication device is attached to the wall surface of the installation place, the bottom surface of the housing is disposed so as to face the installation wall surface, so that at least one of the first slit and the second slit is upward. The other is located below. Therefore, the heat radiation efficiency is improved by natural convection.

  In addition, it is preferable from the viewpoint of dustproofness to attach a dustproof filter having air permeability to the slit.

  As described above in detail, according to the present invention, since the heat dissipation of the wireless communication module is ensured by the slit and the foreign material is prevented from being mixed by the covering member, the durability is improved.

Top plan view and side view of wireless communication device Plan sectional view of the main part of the wireless communication device

  A wireless communication apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a top plan view and a side view of the wireless communication device, and FIG. 2 is a plan sectional view of the main part of the wireless communication device. In FIG. 1, FIG. 1 (b) is a top plan view of the wireless communication apparatus, FIG. 1 (a) is a side view of the upper side in FIG. 1 (b), and FIG. 1 (c) is in FIG. It is a side view of the lower side of the paper.

  The wireless communication device 1 includes a box-shaped, that is, a rectangular parallelepiped housing 100, a wireless communication module (not shown), and a control board (not shown) housed in the housing 100. The wireless communication module is a device corresponding to a data circuit-terminating equipment. When a device using the wireless communication device 1 is connected to a predetermined connector, the control device mounted on the control board performs a process of relaying the used device and the wireless communication module. Here, the control device absorbs the difference between the types of the communication carrier, the provided service, and the wireless communication module, or provides the system with a function unique to the system. For example, a network connection process that is not implemented in a user device can be used by the control device performing a process on behalf of the user device for a network connection process that is not implemented in the user device. As described above, the wireless communication device 1 has a built-in wireless communication module that is a data line termination device. However, when a utilization device is connected to a predetermined connector of the wireless communication device 1, the wireless communication device is viewed from the utilization device. It is configured so as to be seen as one data circuit terminating device as a whole.

  In addition, the wireless communication device 1 includes an interface connected to a LAN (Local Area Network). In this case, the control device of the wireless communication device 1 functions as a router or gateway device that relays between the LAN and the WAN, with the wireless communication network connected by the wireless communication module as the WAN (Wide Area Network) side.

  The housing 100 includes a box-shaped resin main body 101 having an open bottom surface, and a metal bottom plate (not shown) that closes the open bottom surface of the housing main body 101. On the two side surfaces (hereinafter referred to as “left side surface” and “right side surface”) 120 and 130 on the short side of the casing body 101, mounting pieces projecting in the left-right direction from the bottoms of the side surfaces 120 and 130. 121 and 131 are attached. A plurality of mounting holes 122 and 132 are formed in the mounting pieces 121 and 131.

  A large number of display lamps 111 for operation confirmation are arranged on the upper surface 110 of the housing body 101. Further, a circular operation hole for operating a setting switch or the like disposed in the housing 100 is formed on the upper surface 110 of the housing body 101, and a lid 115 is fitted into the operation hole. Yes. For this reason, it is difficult to take a heat dissipation measure on the upper surface 110 side of the casing body 101.

  One side surface (hereinafter referred to as “upper side surface”) 140 on the long side of the casing body 101 is connected to a connector 310 for connecting to a device (higher level device) using a wireless communication device, and to an antenna. Antenna terminals 311 and 312, a LAN connector 313, a power connector 314, and the like are provided.

  A large number of rectangular slits 151 whose longitudinal direction is the thickness direction are formed on the entire other side surface (hereinafter referred to as “lower side surface”) 150 on the long side of the casing body 101 at intervals. ing. Air is communicated between the inside and outside of the housing 100 through the slit 151, and air permeability inside and outside the housing 100 is ensured. As shown in FIG. 2, a covering member 160 that covers the entire surface of each slit 151 while ensuring air permeability inside and outside the housing 100 is provided inside the lower side surface 150. The covering member 160 is formed for each slit 151 at the opening position of each slit 151, and the covering piece 161 having the same shape as the slit 151 and the covering piece at a position spaced apart from the lower side surface 150 inside the slit 151. And a holding piece 162 for holding 161. The holding piece 162 is formed from one long side of the slit 151 toward the inside of the housing body 101. The covering piece 161 is formed to be parallel to the lower surface 150 so as to cover the slit 151 from the end of the holding piece 162. Therefore, the cover piece 161 has a substantially L-shaped cross section. In the present embodiment, the covering member 160 is formed integrally with the housing body 101, and the covering piece 161 and the holding piece 162 are also formed integrally.

  In the present embodiment, slits 151 are not formed on side surfaces 120, 130, and 140 other than lower side surface 150.

  According to the radio communication apparatus according to the present embodiment, durability is improved because the covering member 160 prevents foreign matter from entering the slit 151 while ensuring heat dissipation by the slit 151.

  Although one embodiment of the present invention has been described above, the present invention is not limited to this. For example, in the above embodiment, the covering member 160 is formed inside the casing body 101, but may be formed outside the casing body 101. In the above embodiment, the holding piece 162 that holds the covering piece 161 is formed on the long side of the slit 151, but it may be formed on the short side of the slit 151. In this case, it is preferable to provide the holding pieces 162 on both the upper and lower short sides from the viewpoint of securing the strength. Moreover, in the said embodiment, although the slit 151 was made into the rectangular shape, other shapes, such as an oblong hole shape, may be sufficient.

  In the above embodiment, the slit 151 is formed on only one of the four side surfaces of the housing body 101. However, the slit 151 may be formed on the other side surface. For example, a slit is formed on a side surface located at a corner portion of the housing 100, and a slit is also formed on a side surface located at another corner portion that is symmetric about the central portion of the housing 100 with respect to the corner portion. Forming. Accordingly, when the wireless communication apparatus is attached to the wall surface of the installation location, when the bottom surface of the housing 100 is disposed so as to face the installation wall surface, one slit is positioned above and the other slit is positioned below. . Therefore, the heat radiation efficiency is improved by natural convection.

  Moreover, you may make it provide the shielding member which closes the slit 151 so that opening and closing is possible. Thereby, the heat dissipation capability from the housing 100 can be adjusted according to the installation environment of the wireless communication device and the amount of heat generated in the housing 100, and when the slit 151 is closed, the dust resistance and water resistance are improved. Durability according to the environment can be obtained.

  Further, a dustproof filter having air permeability may be attached to the slit 151. Thereby, dustproofness improves.

  In the above embodiment, the wireless communication apparatus having the LAN connection function has been described. However, the LAN function may be omitted.

  DESCRIPTION OF SYMBOLS 1 ... Wireless communication apparatus 100 ... Housing | casing 101 ... Housing | casing main body, 151 ... Slit, 160 ... Covering member, 161 ... Covering piece, 162 ... Holding piece

Claims (7)

In a wireless communication device comprising a box-shaped housing and a wireless communication module accommodated in the housing,
One or more heat dissipation slits are formed on the side of the housing,
A wireless communication apparatus, comprising: a cover member that covers the slit while ensuring air permeability inside and outside the housing by the slit at an opening position of the slit. The wireless communication apparatus according to claim 1, wherein the covering member includes a covering piece that covers the entire surface of the slit and a holding piece that holds the covering piece. The wireless communication apparatus according to claim 2, wherein the slit is formed in a long hole shape having a thickness direction of a side surface of the housing as a longitudinal direction, and the holding piece is attached to a long side of the slit. The wireless communication apparatus according to claim 3, wherein the covering member has a substantially L-shaped cross section. The wireless communication apparatus according to claim 1, further comprising: a shielding member that closes the slit of the housing so as to be freely opened and closed. A first slit is formed on a side surface of the casing located at the first corner of the casing, and a second corner that is point-symmetric about the center of the casing with respect to the first corner. The wireless communication apparatus according to any one of claims 1 to 5, wherein a second slit is formed on a side surface of the casing. The wireless communication apparatus according to any one of claims 1 to 6, wherein a dustproof filter having air permeability is attached to the slit.

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