WO2009147728A1 - Electronic apparatus testing device and electronic apparatus testing method - Google Patents

Abstract

Provided is an electronic apparatus testing device capable of precisely and consecutively testing the operation of many electronic apparatuses such as cellular phones. The electronic apparatus testing device (1) has a test box (10) for testing the electronic apparatuses (P), waveguides (20A, 20B) which communicate the outside and inside of the test box (10) with each other and have slide doors (23) for blocking radio waves from the outside by closing their opening parts at least when performing the test, and a belt conveyer (30) having a belt (31) for conveying the electronic apparatuses (P). The electronic apparatus testing device is characterized in that the belt (31) can pass through the insides of the waveguides (20A, 20B) to convey the electronic apparatuses (P) into the test box (10) and out of the same.

Description

Electronic device test apparatus and electronic device test method

The present invention relates to an electronic device test apparatus and an electronic device test method that can accurately and continuously perform an operation test on a large number of electronic devices such as mobile phones.

無線 A wireless connection test using radio waves (hereinafter referred to as a test) may be performed to determine whether the device operates or functions normally after manufacturing or repairing an electronic device such as a mobile phone. Conventionally, in order to perform an accurate reception capability test, such a test is performed in a large special room called an anechoic chamber (an anechoic chamber) where external radio waves are blocked, or a shield box (a radio wave shielding box). ) Was done inside the box.

For example, Japanese Patent Application Laid-Open No. 5-249163 (Claim 1, Paragraph 0008, FIG. 1) discloses a metal assembling-type shield box having a radio wave absorber mounted on its inner surface and a shield effect provided on one side of the box. A window with a high lid, a test antenna provided in a position facing the window in the box, and a removable door provided on one of the side surfaces arranged perpendicular to the side surface having the window portion An anechoic chamber device is provided.

Japanese Patent Laid-Open No. 2006-153841 (Claim 1, Paragraph 0045, FIG. 1 and FIG. 3) discloses a test box body having radio wave shielding and radio wave absorbability, and a test fixed to the front side of the test box body. Two hand-insertion waveguides that allow the outside and inside of the box body to communicate with each other, a radio wave shielding window that is provided in the test box body so that the inside thereof can be seen, and an electronic device that is disposed inside the test box body There is described a test box for an electronic device mainly including an antenna for transmitting and receiving radio waves to and from a cable and a cable arranged inside the test box main body and connected to the electronic device.

According to the prior art described above, it is possible to easily test the operation of electronic devices one by one. In particular, the test box for electronic devices described in Japanese Patent Application Laid-Open No. 2006-153841 has an advantage that a tester can accurately test an electronic device while directly handling the electronic device. However, these prior arts repeat the work of putting an electronic device inside the assembly-type shield box or test box main body and conducting a test, then taking out the electronic device after the test and inserting another electronic device. Since it is necessary, it is suitable for testing the operation of each electronic device one by one, but not suitable for testing the operation of many electronic devices.

Therefore, in order to solve such a problem, the present invention provides a test apparatus for an electronic device and an electronic device test method capable of accurately and continuously performing an operation test of many electronic devices such as mobile phones. It is an issue to provide.

As means for solving the above-mentioned problems, the invention according to claim 1 is characterized in that a test box for performing a test on an electronic device communicates with the outside and the inside of the test box, and at least when performing a test, A test apparatus for electronic equipment comprising a passage having a radio wave shielding means for shielding radio waves from a carrier and a transport means having a transport section for transporting an electronic device, wherein the transport section is configured to be able to pass through the inside of the passage. The electronic device is carried into the test box and unloaded from the test box.

According to such a test apparatus for electronic equipment, the electronic equipment to be tested is continuously carried into the test box through the inside of the passage, and the electronic equipment after the test is continuously taken from the test box. Since it is carried out, the operation test of a large number of electronic devices can be continuously performed. In addition, since it is equipped with a passage having radio wave shielding means that shields radio waves from the outside when performing the test, the operation of the electronic device must be precisely tested while maintaining the radio wave shielding property of the test box. Can do.
It should be noted that the “test box” in the present invention includes a large room in which a tester can enter and exit, such as an anechoic chamber.

The invention according to claim 2 is the electronic apparatus testing device according to claim 1, wherein the passage has radio wave absorptivity inside.

According to such a test apparatus for electronic equipment, the radio wave absorption inside the passage absorbs the radio wave that is about to propagate through the hollow portion (inside) of the passage and maintains the radio wave shielding property of the test box well. be able to.

The invention according to claim 3 is the electronic apparatus test apparatus according to claim 1, wherein the passage is configured by a pair of an inlet-side passage and an outlet-side passage, and the inlet-side passage. And the outlet side passage is arranged on a straight line.

According to such a test apparatus for electronic equipment, the linear conveying means can be arranged so as to communicate the outside and inside of the test box, and the electronic equipment before the test is continuously placed inside the test box. At the same time, the electronic equipment after the test can be continuously carried out of the test box.

The invention according to claim 4 is the electronic apparatus test apparatus according to any one of claims 1 to 3, wherein the radio wave shielding means includes a curtain made of a conductive cloth. It is characterized by including.

According to such a test apparatus for electronic equipment, the degree of propagation from the inside of the test box to the outside and the test box of the radio wave to be propagated through the hollow portion (inside) of the passage communicating between the outside and the inside of the test box The degree of propagation from the outside to the inside can be further reduced as compared with the case where no curtain is provided. That is, since a part of the radio wave that attempts to pass through the hollow portion (inside) of the passage causes a diffraction loss due to the metal component of the conductive cloth constituting the curtain, the propagation degree of the radio wave can be reduced. The conductive cloth is a cloth containing a metal component, specifically, a cloth made of a composite fiber of metal fibers and polymer fibers, a cloth made of polymer fibers plated with a metal such as Ni or Cu, and the like. Is mentioned.
Note that the diffraction loss means that the radio wave is reflected by a metal component such as metal fiber or metal plating, and is thus difficult to propagate to the traveling direction side of the radio wave (in this case, the back side of the curtain).

Also, since the curtain is a relatively soft cloth, it can be carried into and out of the test box without damaging the electronic equipment.

The invention according to claim 5 is the electronic apparatus testing apparatus according to claim 1, wherein the radio wave shielding means opens and closes the passage in conjunction with the movement of the transport unit. It is characterized by including a member.

According to such a test apparatus for electronic equipment, the degree of propagation from the inside of the test box to the outside and the test box of the radio wave to be propagated through the hollow portion (inside) of the passage communicating between the outside and the inside of the test box The degree of propagation from the outside to the inside can be further reduced as compared with the case where no door member is provided.

The invention according to claim 6 is the test apparatus for electronic equipment according to claim 5, wherein the door member includes a door main body made of an aluminum plate or an aluminum alloy plate, and the door main body. It consists of the rubber-type electromagnetic wave absorber stuck.

According to such a test apparatus for electronic equipment, a part of the radio wave that is about to pass through the hollow portion (inside) of the passage is reflected by the door body made of an aluminum plate or an aluminum alloy plate, and pasted on the door body. By being absorbed by the attached rubber-based radio wave absorber, the radio wave propagation degree can be reduced.

The invention according to claim 7 is the test apparatus for electronic equipment according to claim 1, wherein the passage is a waveguide that does not propagate radio waves having a wavelength longer than a predetermined wavelength. Features.

According to such a test apparatus for electronic equipment, since a waveguide that does not propagate radio waves having a wavelength longer than a predetermined wavelength is provided as a passage, even if the curtain and the door member are not provided, the guide is provided. It is possible to reliably absorb radio waves having a wavelength longer than a predetermined wavelength to propagate through the hollow portion (inside) of the wave tube (passage), and to suitably maintain the radio wave shielding property of the test box. Moreover, the radio wave shielding property of the test box can be more favorably maintained by using the above-described curtain and door member in combination.
Note that “does not propagate radio waves longer than the predetermined wavelength” means “designed with specifications that allow radio waves having wavelengths below the predetermined wavelength to propagate well without being attenuated” .

The invention according to claim 8 is the electronic apparatus test apparatus according to claim 1, wherein the test box is made of a metal case having radio wave shielding properties. And

According to such a test apparatus for electronic equipment, radio waves can be reliably shielded by the metal casing having conductivity. Moreover, by being metal, the rigidity of a housing | casing is improved and the durability of a test box can be improved as a result.

The invention according to claim 9 is the electronic apparatus test apparatus according to claim 8, wherein the metal casing is configured by assembling a plurality of metal members, The plurality of metal members are joined by welding.

According to such a test apparatus for an electronic device, a housing having a desired shape can be easily configured by appropriately assembling a plurality of metal members. In addition, by joining multiple metal members together by welding, it is possible to reliably shield radio waves that try to pass through the joints and reliably prevent radio waves from leaking between the inside and outside of the test box. Can do.

The invention according to claim 10 is the electronic apparatus testing apparatus according to claim 8 or 9, wherein at least one of the metal casing and the passage is made of aluminum or aluminum. It is formed from an alloy.

According to such a test apparatus for electronic equipment, at least one of the metal casing and the passage can be reduced in weight.

The invention according to claim 11 is the electronic apparatus test apparatus according to claim 1, wherein the test box has a window through which the inside can be visually confirmed.

According to such a test apparatus for electronic equipment, for example, the operation status of the electronic equipment inside the test box can be visually recognized from the outside of the test box through the window while testing the electronic equipment. .

The invention according to claim 12 is the test apparatus for electronic equipment according to claim 11, characterized in that the window has a shielding property against radio waves.

According to such a test apparatus for electronic devices, since the window has a radio wave shielding property, the radio wave shielding property of the test box can be suitably maintained.

The invention according to claim 13 is the electronic apparatus testing apparatus according to claim 1, wherein the test box has an openable / closable door.

According to such a test apparatus for electronic equipment, the electronic equipment can be freely put in and out by opening and closing the door of the test box as appropriate.

The invention according to claim 14 is the electronic apparatus test apparatus according to claim 1, wherein the measurement antenna transmits and receives radio waves to and from the electronic apparatus inside the test box. Is provided.

According to such a test apparatus for electronic equipment, radio waves can be exchanged between the measurement antenna and the electronic equipment inside the test box.

The invention according to claim 15 is the electronic apparatus test apparatus according to claim 14, wherein the plane of polarization of the radio wave radiated from the measurement antenna and the radiation of the antenna of the electronic apparatus are emitted. The axis of the antenna for measurement can be rotated around the axis so that the plane of polarization of the radio wave to be transmitted is parallel or perpendicular.

According to such an electronic apparatus test apparatus, the measurement antenna has a plane of polarization so that the plane of polarization of the radio wave radiated from the antenna for measurement is parallel or perpendicular to the plane of polarization of the radio wave radiated from the antenna of the electronic apparatus. The shaft can be adjusted for rotation. Thereby, the change in the electric field of the radio wave radiated from the measurement antenna can be easily set in either an environment where the antenna of the electronic device is easily received or an environment where the antenna of the electronic device is difficult to receive.
Note that the polarization plane refers to a plane in which the wave of an electric field vibrates in an electromagnetic wave. A radio wave radiated from a normal antenna is linearly polarized.

The invention according to claim 16 is the electronic device test apparatus according to claim 14 or 15, wherein a distance between the measurement antenna and the antenna of the electronic device is the measurement device. It is characterized by being not less than the wavelength λ of the radio wave radiated from the antenna.

According to such a test apparatus for electronic equipment, it becomes possible to place the antenna of the electronic equipment in the region of the far electromagnetic field inside the test box, and test the electronic equipment at a position where the electric field strength is stable. Can do. Thus still it is possible to perform precisely the test of the electronic device, the far field region, the wave impedance means that the equal area on the wave impedance Z ₀ of the space. The radio wave radiated from the measurement antenna propagates close to a plane wave in this region.

The invention according to claim 17 is the electronic apparatus test apparatus according to claim 14, wherein a magnetic sheet is provided in the vicinity of the measurement antenna on the inner surface of the test box. It is characterized by that.

According to such a test apparatus for electronic equipment, electromagnetic induction due to radio waves radiated from a measurement antenna disposed inside the test box can be suppressed, and eddy current is generated inside the test box. Can be effectively prevented.

The invention according to claim 18 is the electronic apparatus test apparatus according to claim 1, wherein the transport unit includes a plurality of holding means for holding the electronic apparatus, The holding means includes a connector to which one end of the cable is connected and electrically connects the cable and the electronic device.

According to such a test apparatus for electronic equipment, since the transport unit includes a plurality of holding means for holding the electronic equipment, by installing the electronic equipment on the holding means, the electronic equipments are arranged in the order of installation, and It is possible to test the operation of the electronic equipment by regularly carrying it into the test box.

In addition, since the holding means is provided with a connector to which one end of the cable is connected and electrically connects the cable and the electronic device, the electronic device and the connector are connected by installing the electronic device on the holding means. The electronic device and the cable can be electrically connected via the connector.

The invention according to claim 19 is the electronic apparatus test apparatus according to claim 18, wherein the cable is covered with a noise absorber that absorbs noise. .

According to such a test apparatus for electronic equipment, since the cable is covered with the noise absorber, noise generated from the cable can be effectively absorbed during the test, and the electronic equipment can be accurately tested. it can.

The invention according to claim 20 is the electronic apparatus testing apparatus according to claim 18 or 19, wherein the cable is adjacent to the holding means provided in the transport section. And has a terminal on the other end opposite to the one end, and the terminal is connected to an external terminal connected to a test unit for determining the state of the electronic device at least when performing a test. It is characterized by.

According to such a test apparatus for electronic equipment, the cable has a terminal on the other end opposite to one end connected to the holding means, and this terminal is connected to a test unit for determining the state of the electronic equipment. By connecting to the terminal at least when performing the test, it is possible to check whether the electronic device is operating normally via the cable and to send various instructions to the electronic device. Can be made.

The invention according to claim 21 is the electronic apparatus testing device according to claim 18, characterized in that the transport section is a belt made of a rubber-based electromagnetic wave absorber.

According to such a test apparatus for electronic equipment, since the transport unit is a belt made of a rubber-based electromagnetic wave absorber, noise generated from the cable during the test can be absorbed, and the electronic equipment is tested accurately. be able to.

The invention according to claim 22 is the electronic apparatus testing apparatus according to claim 1, wherein the passage is configured to transmit radio waves from the outside below the transport section passing through the interior. A metal filter for shielding is provided.

According to such a test apparatus for electronic equipment, since the metal filter that shields radio waves from the outside is provided below the transport section that passes through the inside of the passage, the outside and inside of the test box communicate with each other. It is possible to further reduce the degree of propagation of radio waves that are to propagate through the inside of the passage from the outside to the inside of the test box.

The invention according to claim 23 is the electronic apparatus test apparatus according to claim 1, wherein at least one of the test box and the passage has a λ / 4 type wave absorber inside. It is characterized by having.

According to such a test apparatus for electronic equipment, by including the λ / 4-type radio wave absorber, radio waves radiated from the measurement antenna during the test can be effectively absorbed. Thereby, the resonance phenomenon of the radio wave can be prevented and the electronic device can be accurately tested.
The resonance phenomenon of radio waves refers to a phenomenon in which, when radio waves are radiated from a measurement antenna inside a test box having radio wave shielding properties, the radio waves are repeatedly reflected on the inner wall of the test box and cause interference. .

The invention according to claim 24 is the electronic apparatus testing apparatus according to claim 1, characterized in that the test box is provided with illumination.

According to such a test apparatus for electronic equipment, the inside of the test box can be brightened. The illumination is preferably an LED lamp (Light Emitting Diode Lump). This is because LED lamps hardly generate noise when flashing, unlike fluorescent lamps.

The invention according to claim 25 is an electronic device testing method using the electronic device test apparatus according to claim 1, wherein a plurality of electronic devices are sequentially transferred to the transport portion of the transport means. The electronic device is loaded into a predetermined position inside the test box, tested for the electronic device, and then carried out of the test box by the transport means.

According to such an electronic device test method, using the above-described test apparatus for electronic devices, a plurality of electronic devices are sequentially placed on a transport portion of the transport means and carried into a predetermined position inside the test box, After the electronic device is tested, the operation of many electronic devices can be continuously tested by carrying it out of the test box by the transport means.

Further, according to such an electronic device testing method, the electronic device testing apparatus includes a passage having a radio wave shielding means for shielding radio waves from the outside at least when performing a test. It is possible to accurately test the operation of the electronic device while maintaining the shielding property of the radio wave.

According to the present invention, it is possible to provide an electronic device test apparatus and an electronic device test method that can accurately and continuously test the operation of many electronic devices such as mobile phones.

It is a perspective view showing one embodiment of a testing device for electronic equipment of the present invention. FIG. 2 is a sectional view taken along line XX of the electronic apparatus testing apparatus shown in FIG. FIG. 2 is a YY sectional view of the electronic apparatus testing apparatus shown in FIG. It is sectional drawing which shows the electromagnetic wave absorber formed in the inner surface of the test box which comprises the test device for electronic devices which concerns on one Embodiment. FIG. 2 is a ZZ cross-sectional view of the electronic apparatus testing apparatus shown in FIG. It is a front view which shows the opening part of the external side of the waveguide which comprises the test device for electronic devices which concerns on one Embodiment. (A) And (b) is sectional drawing which shows the sliding door which comprises the testing apparatus for electronic devices which concerns on one Embodiment. It is a perspective view which shows the belt conveyor which comprises the testing apparatus for electronic devices which concerns on one Embodiment. It is a figure for demonstrating operation | movement of the testing apparatus for electronic devices which concerns on one Embodiment, (a) is sectional drawing of a test box and a waveguide, (b) is a side view of the edge part of a belt conveyor, (c) ) Is a plan view of the end of the belt conveyor. It is a figure for demonstrating operation | movement of the testing apparatus for electronic devices which concerns on one Embodiment, (a) is sectional drawing of a test box and a waveguide, (b) is a side view of the edge part of a belt conveyor, (c) ) Is a plan view of the end of the belt conveyor. It is a figure for demonstrating operation | movement of the testing apparatus for electronic devices which concerns on one Embodiment, (a) is sectional drawing of a test box and a waveguide, (b) is a side view of the edge part of a belt conveyor, (c) ) Is a plan view of the end of the belt conveyor. It is a figure for demonstrating operation | movement of the testing apparatus for electronic devices which concerns on one Embodiment, (a) is sectional drawing of a test box and a waveguide, (b) is a side view of the edge part of a belt conveyor, (c) ) Is a plan view of the end of the belt conveyor. (A) is sectional drawing which shows the opening / closing door which comprises the testing apparatus for electronic devices which concerns on a modification, (b) is a perspective view which shows the opening / closing door which comprises the testing apparatus for electronic devices which concerns on a modification. (A) is a perspective view which shows the opening / closing door which comprises the test device for electronic devices which concerns on another modification, (b) is a perspective view which shows the slide door which comprises the test device for electronic devices which concerns on a modification. is there.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Test apparatus for electronic devices 10 Test box 11 Case 11a Panel (metal member)
12 Door 12b Window 13 Wave Absorber 14 Antenna 14c Magnetic Sheet 15 LED Lamp (Lighting)
20A, 20B Waveguide (passage)
22 Radio wave absorber 23 Sliding door (door member / radio wave shielding means)
23a Door body 23b Rubber-based electromagnetic wave absorber 24 Curtain (Radio wave shielding means)
25 Filter 30 Belt conveyor (conveyance means)
31 belt (conveyance unit)
33 Holding means 33a Connector 34 Cable 40 Test unit P Electronic device RT External terminal T terminal

Hereinafter, an embodiment of the present invention will be described with reference to the drawings as appropriate.
FIG. 1 is a perspective view showing an embodiment of a test apparatus for electronic equipment. 2 is an XX cross-sectional view of the electronic device testing apparatus shown in FIG. 1, and FIG. 3 is a YY cross-sectional view of the electronic device testing apparatus shown in FIG. FIG. 4 is a cross-sectional view showing a radio wave absorber formed on the inner surface of the test box. FIG. 5 is a ZZ sectional view of the electronic apparatus testing apparatus shown in FIG. FIG. 6 is a front view showing the opening on the outside of the waveguide. FIGS. 7A and 7B are sectional views showing the sliding door. FIG. 8 is a perspective view showing a belt conveyor.

[Test equipment for electronic equipment]
As shown in FIG. 1, a test apparatus 1 for an electronic device includes a test box 10 that performs a test on the electronic device P, and a waveguide that communicates the outside and the inside of the test box 10 and serves as a passage for the electronic device P. 20A and 20B, and a belt conveyor 30 which is a conveying means having a belt 31 (conveying unit) for conveying the electronic device P is mainly provided.

<Test box>
As shown in FIGS. 1 to 3, the test box 10 is provided with a metal casing 11, a door 12 provided on a side wall of the casing 11, and inner surfaces of the casing 11 and the door 12. A radio wave absorber 13, an antenna 14 provided on the upper wall of the housing 11, and an LED lamp 15 (see FIG. 5) are provided.

The housing 11 is formed in a substantially rectangular parallelepiped box shape by welding a plurality of metal panels 11a to a frame (not shown) serving as a skeleton. Since the casing 11 is formed of a conductive metal panel 11a and a frame (not shown), it has a shielding property against external radio waves, a predetermined rigidity, and a durability thereof. Has been enhanced. Moreover, since the several panel 11a and the flame | frame (not shown) are joined by welding, the sealing property of the housing | casing 11, ie, the shielding property of an electromagnetic wave, is improved.

The metal forming the panel 11a and the frame (not shown) is not particularly limited in the present invention, and may be an alloy as well as a pure metal, for example. In addition, especially when the panel 11a and the frame (not shown) are formed of aluminum or an aluminum alloy, the weight of the housing 11 can be reduced while maintaining a desired rigidity. Moreover, since aluminum and aluminum alloys have a unique gloss, the casing 11 (test box 10) is excellent in aesthetics.

As shown in FIG. 3, the door 12 is formed of a metal panel 12a, and a window 12b is provided above the panel 12a in a front view (see FIG. 1).
The panel 12a is rotatably attached to the side surface of the housing 11 via a hinge 11b, and the door 12 can be appropriately opened and closed. Note that a frame-shaped packing 11c having a radio wave shielding property, for example, a conductive rubber packing, is provided at the contact portion between the housing 11 (panel 11a) and the door 12 (panel 12a) when the door 12 is closed. It is desirable to provide it. Thereby, the shielding property of the radio wave of the test box 10 when the door 12 is closed can be suitably maintained.

A rectangular glass plate having transparency is attached to the window 12b by a frame 12c. Thereby, while testing the electronic device P, the inside of the test box 10 can be visually recognized from the outside through the window 12b. For example, the presence or absence of lighting of the incoming lamp due to reception of radio waves is visually recognized. be able to.
Moreover, since the glass plate has radio wave reflectivity (shielding property) for preventing radio waves from coming and going through the window 12b, the radio wave shielding property of the test box 10 should be suitably maintained. Can do. As such a window 12b, what formed the ITO (Indium Tin Oxide: indium tin oxide) film | membrane on the single side | surface of a glass plate can be used, for example.

When radio waves radiated from the electronic device P or the antenna 14 are directly applied to the window 12b (glass plate), the radio waves are reflected on the surface of the window 12b (glass plate), and the radio waves are reflected inside the test box 10. Since this may cause a resonance phenomenon, the window 12b is preferably provided at a position where the radio waves radiated from the electronic device P and the antenna 14 are not irradiated as much as possible.

The frame 12c is a metal frame member, and is welded to the panel 12a so as to cover the peripheral edge of the window 12b. It is desirable to provide a packing (not shown) having radio wave shielding properties at a contact portion between the frame 12c and the window 12b (glass plate). Thereby, the shielding property of the electromagnetic wave in the peripheral part of the window 12b (glass plate) can be ensured, and the shielding property of the electromagnetic wave of the test box 10 can be suitably maintained.
The panel 12a and the frame 12c are preferably formed of aluminum or an aluminum alloy, like the housing 11. The casing 11 (panel 11a) and the door 12 (panel 12a) described above also function as a part of the radio wave absorber 13 described later.

The radio wave absorber 13 has a structure based on a known method (λ / 4 type) for absorbing radio waves, and as shown in FIGS. 2 and 3, the inner surface of the test box 10 (the casing 11 and the door 12). The radio waves radiated from the electronic device P and the antenna 14 are absorbed in a pseudo manner without being reflected by the inner surface of the test box 10. That is, the radio wave absorber 13 prevents the radio waves radiated from the electronic device P and the antenna 14 from resonating with the radio waves reflected by the inner surface of the test box 10.

As shown in FIG. 4, the radio wave absorber 13 is arranged on the panel 11a (or the panel 12a), the spacer 13a disposed on the inner surface side thereof, and further on the inner surface side thereof, and transmits half of the radio wave. A resistive film sheet 13b having a function and a protective film 13c disposed on the inner surface side thereof to protect the resistive film sheet 13b are configured.

The spacer 13a is for setting the interval between the resistive film sheet 13b and the panel 11a (or the panel 12a) to λ / 4, where λ is the wavelength of the radio wave radiated from the electronic device P or the antenna 14. , And a thickness D of λ / 4. The spacer 13a may be formed of any material as long as it has radio wave transmission properties, for example, foamed polystyrene. In addition, when the spacer 13a is formed from a polystyrene foam, the thickness D can be adjusted easily.

The resistance film sheet 13b is a thin sheet whose surface resistance value is adjusted to be approximately equal to free space impedance (376.7Ω). As such a resistance film sheet 13b, for example, a sheet obtained by applying a carbon conductive paint to an appropriate base sheet or a film formed by adjusting the resistance value of the ITO film can be used.

The protective film 13c is laminated on the inner surface side of the resistance film sheet 13b, and protects the surface of the resistance film sheet 13b. Such a protective film 13c can be formed from, for example, polyethylene terephthalate (PET), polycarbonate (PC), polyacetal (POM), polyvinyl chloride (PVC), polyethylene (PE), or the like.

Here, the mechanism of radio wave absorption by the radio wave absorber 13 will be described with reference to FIG. Here, in order to simplify the description, a case will be described in which the radio wave W1 radiated from the electronic device P or the antenna 14 is incident from the vertical direction of the protective film 13c.

Of the radio wave W1 that has entered and passed through the protective film 13c, the radio wave W2 that passes through the resistance film sheet 13b is referred to as radio wave W2, and the radio wave W3 that reflects from the resistance film sheet 13b. The radio wave W2 that has passed through the resistance film sheet 13b travels through the spacer 13a, and then is reflected by the panel 11a (or the panel 12a) (this is referred to as radio wave W4). Note that the phase of the radio wave is inverted upon reflection on the resistance film sheet 13b or the panel 11a.

The radio wave W4 reflected by the panel 11a (or the panel 12a) and reaching the resistance film sheet 13b is twice the thickness D of the spacer 13a with respect to the radio wave W3 reflected by the resistance film sheet 13b, that is, “λ / 4”. × 2 = λ / 2 ”, and the phase of the radio wave W3 and the phase of the radio wave W4 are inverted. As a result, the radio wave W3 and the radio wave W4 cancel each other, and as a result, the radio wave W1 incident on the resistance film sheet 13b is absorbed in a pseudo manner.

In such a radio wave absorber 13, if the distance between the resistance film sheet 13b and the panel 11a (or the panel 12a) can be set to λ / 4, the spacer 13a having a thickness D of λ / 4. May not be provided. However, it is necessary that radio waves can be transmitted between the resistive film sheet 13b and the panel 11a (or the panel 12a).

The antenna 14 is for transmitting and receiving radio waves to and from the electronic device P. As shown in FIG. 2, an antenna waveguide 14a is provided in a through hole formed in the upper wall of the housing 11. Is provided. One end of a cable (not shown) is connected to the antenna 14, this cable (not shown) is pulled out of the antenna waveguide 14a, and the other end is connected to a radio wave transmitting / receiving unit (not shown). It is connected. The radio wave transmission / reception unit (not shown) has functions for radiating radio waves to the antenna 14, controlling the frequency band and output of the radio waves, and measuring radio waves from the electronic device P received by the antenna 14. Any known one can be used.

The distance between the antenna (not shown) of the electronic device P and the antenna 14 is preferably set to be equal to or greater than the wavelength λ of the radio wave radiated from the electronic device P or the antenna 14 so as to be equal to or greater than 2λ. It is more desirable to set to. As a result, the antenna (not shown) of the electronic device P can be disposed in the region of the far electromagnetic field, and the test of the electronic device P can be performed at a position where the electric field strength is stable. The test can be performed precisely.

The antenna waveguide 14a is a metal cylinder formed of, for example, aluminum or aluminum alloy, having a circular cross section and one end (inner side of the test box 10) bent in an L shape. It has a shielding property. The antenna waveguide 14a communicates between the outside and inside of the test box 10, and a cable (not shown) connected to the antenna 14 is wired in the hollow portion (inside). A rectangular ground plate 14b is fixed to the tip of the antenna waveguide 14a (inside the test box 10).

The specifications of the antenna waveguide 14a are set based on the wavelength of the radio wave that does not propagate inside. Specifically, the inner diameter and the length of the antenna waveguide 14a are set so that a radio wave having a wavelength longer than a predetermined wavelength does not propagate through the inside. Thereby, the radio wave shielding property of the test box 10 can be suitably maintained. In general, if the shape and dimensions of the opening of the waveguide are the same, the longer the waveguide, the higher the radio wave shielding performance. Although it depends on the shape of the opening of the waveguide, the limit frequency (predetermined frequency) of the radio wave that can be shielded by the waveguide increases as the area of the opening decreases.
The cross section of the antenna waveguide 14a is not limited to a circle, and may be a polygon, for example.

The antenna waveguide 14a is provided in a through hole formed in the upper wall of the housing 11 so as to be rotatable about a vertical axis (see FIG. 5). Near the outer end of the antenna waveguide 14a, there are a power source (for example, a motor), a power transmission mechanism (for example, a gear and a belt), and a control mechanism (for example, the rotation direction and rotation speed of the antenna). Is connected to a known drive unit (not shown). Thereby, the axis of the antenna 14 is rotationally adjusted so that the plane of polarization of the radio wave radiated from the antenna 14 and the plane of polarization of the radio wave radiated from the antenna (not shown) of the electronic device P are parallel or perpendicular. be able to.
The rotation adjustment of the shaft of the antenna 14 is not limited to this, and may be performed manually, for example.

Further, as shown in FIG. 5, it is desirable to provide a magnetic sheet 14c in the vicinity of the antenna 14 on the upper wall of the housing 11. In general, when an antenna is installed close to a metal object, an eddy current flows through the metal object and re-radiation of radio waves occurs, which may interfere with and influence the radio waves appropriately radiated to the specimen. Thus, this effect can be reduced by providing a magnetic sheet on the wall surface on which the antenna is installed (the wall surface opposite to the specimen; that is, the antenna is disposed between the wall surface and the specimen). Because.

The LED lamp 15 is illumination for illuminating the inside of the test box 10 and is provided on the upper wall of the housing 11 as shown in FIG. Thereby, for example, while testing the electronic device P, the inside of the test box 10 is illuminated so that the electronic device P can be easily seen. Unlike the fluorescent lamp, the LED lamp 15 hardly generates noise at the time of blinking, and thus can be suitably used as illumination for illuminating the inside of the test box 10.
In addition, the installation position of LED lamp 15, the arrangement | positioning, the number, etc. can be set suitably, and are not limited to the structure shown in FIG. Moreover, the illumination which illuminates the inside of the test box 10 is not limited to the LED lamp 15, For example, a halogen lamp, an incandescent lamp, etc. may be sufficient.

According to the test box 10 as described above, since it has a shielding property against external radio waves and a radio wave absorption property (radio wave absorber 13) that absorbs radio waves radiated inside, the test box 10 Can be prevented from reaching the inside, and resonance caused by reflection of the radio wave can be prevented by absorbing the radio wave generated inside (the radio wave radiated from the electronic device P or the antenna 14).

<Waveguide>
As shown in FIGS. 2 and 3, the waveguides 20A and 20B are passages that allow the outside and inside of the test box 10 to communicate with each other, and the electronic equipment P passes through the inside of the waveguides 20A and 20B. Then, it is carried into the test box 10 and unloaded from the test box 10. The waveguides 20A and 20B have a characteristic of not propagating radio waves having a wavelength longer than a predetermined wavelength.
The waveguide 20A and the waveguide 20B are arranged on a straight line, and are guided to one of the opposing side walls of the test box 10 so that one end of each of the waveguides 20A and 20B protrudes into the test box 10. The wave tube 20A is fixed to the other side, and the waveguide 20B is fixed to the other side.
In the present embodiment, the entrance-side passage through which the electronic device P is carried into the test box 10 is referred to as a waveguide 20A, and the exit-side passage through which the electronic device P is carried out from the test box 10 is referred to as a waveguide 20B.

The waveguides 20 </ b> A and 20 </ b> B respectively include a waveguide body 21, a radio wave absorber 22 provided on the inner surface of the waveguide body 21, and a slide door 23 provided in the opening 21 a of the waveguide body 21. And a plurality of curtains 24 provided inside the waveguide body 21, and a filter 25 provided in the openings 21 a and 21 b of the waveguide body 21.

As shown in FIG. 6, the waveguide main body 21 has a rectangular cross section, and is a metal cylinder formed of, for example, aluminum or an aluminum alloy, and has radio wave shielding properties. Since the waveguide main body 21 communicates the outside and the inside of the test box 10, the electronic device P can be carried in and out of the test box 10 through the hollow portion (inside). ing.
In the present embodiment, among the openings at both ends of the waveguide main body 21 that is a cylindrical body, the one located outside the test box 10 is defined as the opening 21a, and the one located inside the test box 10 is opened. Let it be a portion 21b.

The sides S1 and S2 constituting the rectangular cross section of the waveguide body 21 are set based on the wavelength of the radio wave that does not propagate inside the waveguide body 21. Specifically, the side S <b> 1 and the side S <b> 2 of the waveguide body 21 are set so that radio waves having a wavelength longer than a predetermined wavelength do not propagate inside the waveguide body 21. Thereby, propagation of radio waves having a wavelength longer than the set wavelength can be prevented through the hollow portion of the waveguide body 21, so that the radio wave shielding property of the test box 10 can be suitably maintained. .
If the shape and dimensions of the opening are the same, the longer the waveguide, the higher the radio wave shielding performance, and the smaller the opening area, the higher the limit frequency of the radio wave that can be shielded by the waveguide. This is the same as the above-described antenna waveguide 14a.
The cross section of the waveguide body 21 is not limited to a rectangle, and may be, for example, a circle or a polygon (excluding a rectangle).

The radio wave absorber 22 is formed so as to cover the inner surface of the waveguide body 21, and absorbs radio waves that are to propagate through the inside of the waveguide body 21, so It increases the propagation characteristics. By providing the radio wave absorber 22, the waveguides 20 </ b> A and 20 </ b> B, which are passages of the electronic device P, have radio wave absorbability that absorbs radio waves inside thereof.

As such a radio wave absorber 22, for example, a radio wave absorption sheet called a dipole type can be used. Examples of the dipole-type radio wave absorbing sheet include (1) a sheet formed of a compound such as carbon powder and titanium oxide and absorbing radio waves using the electric field of these compounds, and (2) ferrite and carbonyl. A sheet formed from a compound such as iron and absorbing radio waves using the magnetic field of these compounds, or (3) a sheet absorbing a radio wave formed from a composite of a resin (eg polyurethane) and a magnetic material Etc. Specifically, for example, Lumidion (registered trademark) manufactured by Toyo Service Co., Ltd., HTD-101 manufactured by Hitachi Metals, Ltd., or the like can be used. Similarly to the above-described radio wave absorber 13, a λ / 4 type radio wave absorber can also be used. Since the λ / 4 type wave absorber has been described above, the description thereof is omitted here.

The slide door 23 is provided in the opening 21a of the waveguide main body 21 so as to be freely opened and closed. At least when performing a test, the sliding door 23 closes the opening 21a of the waveguide main body 21 and shields radio waves from the outside. It is. As shown in FIG. 7, the slide door 23 includes a door main body 23a made of aluminum or an aluminum alloy, and a rubber-based radio wave absorber 23b attached to the outer surface of the door main body 23a. The rubber-based wave absorber is, for example, a mixture of ethylene propylene rubber or chloroprene rubber mixed with carbon black, magnetic powder, etc., kneaded, pressed with a roll and formed into a sheet shape, and is a broadband wave absorber. It is desirable.

The opening / closing means of the slide door 23 is not particularly limited in the present invention, and known opening / closing means can be used. For example, as shown in FIG. 7 (a), the wire 23c attached to the upper portion of the door body 23a may be opened (opened / closed) by winding it with a winding mechanism 23d. As shown in (b) of the figure, the rack portion 23e formed on the door main body 23a may be opened and closed by engaging with a pinion 23f connected to a motor (not shown) or the like.

According to such a sliding door 23, a part of the radio wave that is about to pass through the hollow portion (inside) of the waveguide body 21 is reflected by the door body 23a made of an aluminum plate or an aluminum alloy plate, and the door. Since it is absorbed by the rubber-based radio wave absorber 23b attached to the outer surface of the main body 23a, the propagation degree of radio waves can be reduced. In addition, the slide door 23 closes the opening 21a of the waveguide main body 21 at least when performing the test, so that the radio wave shielding property of the test box 10 at the time of performing the test can be favorably maintained. The opening / closing operation of the slide door 23 is set to be performed in conjunction with the movement of the belt conveyor 30 (belt 31) described later, which will be described later. In the present embodiment, the slide door 23 is provided in the opening 21a of the waveguide body 21, but a slit (not shown) is provided in the center of the waveguide body 21, and the slide door is provided in the slit. May be inserted. In this case, if the structure is such that conductive rubber or aluminum foil is sandwiched between the slit and the slide door, the radio wave shielding property can be kept good.

The curtain 24 has a relatively soft cloth shape made of a conductive cloth, and a plurality of curtains 24 are provided inside the waveguide body 21 as shown in FIG. The conductive cloth is a cloth containing a metal component, and specifically, a cloth made of a composite fiber of a metal fiber and a polymer fiber and a polymer fiber plated with a metal such as Ni or Cu. Examples include cloth. According to such a curtain 24, a part of the radio wave that attempts to pass through the hollow portion (inside) of the waveguide body 21 causes diffraction loss due to the metal component contained in the curtain 24. Can be reduced. Specifically, the radio wave propagation degree can be reduced to about 30 to 40 dB.
Further, since the curtain 24 is a relatively soft cloth, even when the electronic device P is brought into and out of the test box 10, even if the electronic device P and the curtain 24 come into contact with each other, the electronic device P is not damaged. Has the advantage.

In the present embodiment, as shown in FIG. 2, one curtain 24 is provided at three locations inside the waveguide body 21 (including the opening 21b), but this is not limitative. Is not to be done. For example, the number of places where the curtain 24 is provided may be two or less or four or more, and the number of the curtains 24 provided in one place may be plural.

The filter 25 is, for example, a mesh laminate in which a plurality of metal meshes made of aluminum, aluminum alloy, or the like are stacked. As shown in FIGS. 2 and 6, the openings 21a, 21b is provided below a belt 31 (belt conveyor 30) which will be described later. Radio wave shielding means (slide door 23 and curtain 24) are provided above the belt 31 (belt conveyor 30) in the opening 21a and inside of the waveguide main body 21, but the propagation degree of radio waves is more reliably ensured. In order to lower the level, it is desirable to provide such a filter 25 also below the belt 31. Inside the filter 25, diffraction loss occurs due to the metal mesh laminate, and the radio wave propagation can be reliably reduced.
In addition, it is desirable to provide a seal member 26 formed of a rubber-based electromagnetic wave absorber or the like in the gap between the filter 25 and the belt 31. Moreover, you may provide the electroconductive brush which vapor-deposited the metal thin film on the flexible polymer fiber instead of the above-mentioned sealing member 26. FIG.

According to the waveguides 20A and 20B as described above, a conductor serving as a passage of the electronic device P having the radio wave shielding means (slide door 23, curtain 24), the radio wave absorber 22, and the filter 25 that shields radio waves from the outside. Since the wave tube main body 21 is provided, even when the outside and inside of the test box 10 communicate with each other, the radio wave shielding property of the test box 10 can be maintained well.

<Belt conveyor>
As shown in FIGS. 1 to 3, the belt conveyor 30 is a conveying means for conveying the electronic device P, and is disposed so as to pass through the inside of the waveguide 20A, the test box 10, and the waveguide 20B. ing. The belt conveyor 30 includes a belt 31 serving as a conveyance unit that conveys the electronic device P, a roller-equipped table 32 that drives the belt 31, a plurality of holding means 33 provided on the conveyance surface of the belt 31, and a holding means 33. And a cable 34 to be connected (see FIG. 8).

The belt 31 is an endless belt serving as a conveyance unit of the belt conveyor 30 and is formed from a rubber-based electromagnetic wave absorber. The belt 31 is stretched around a plurality of rollers 32a of the roller-equipped table 32. Power is transmitted by the rotation of the rollers 32a, and the belt 31 is driven, that is, the electronic device P is conveyed. ing.
In addition, the table 32 with a roller is not specifically limited by this invention, A well-known thing can be used. Further, the roller-equipped table 32 may be configured such that all the rollers 32 a rotate to transmit power to the belt 31, or a part of the driving rollers of the rollers 32 a rotate to transmit power to the belt 31. It may be a configuration.

As shown in FIG. 8, the holding means 33 is for holding the electronic device P on the conveying surface of the belt 31, and a plurality of holding means 33 are provided on the conveying surface of the belt 31 with a certain interval. In the holding means 33, a connector 33a is provided at a position corresponding to a connection terminal (for example, an external connection terminal for communication of a mobile phone, not shown) of the electronic device P installed in the holding means 33. . Thereby, by installing the electronic device P in the holding means 33, a connection terminal (not shown) of the electronic device P and the connector 33a can be electrically connected.

The cable 34 is laid adjacent to a plurality of holding means 33 provided on the conveying surface of the belt 31, a metal plate having one end fixed to the connector 33 a provided on the holding means 33 and the other end fixed to the belt 31. Are respectively connected to terminals T. Thereby, the electronic device P and the test unit 40 to be described later can be electrically connected through the connector 33a, the cable 34, the terminal T, and the external terminal RT to be described later. In addition, the material of the terminal T is not specifically limited in this invention, Not only a pure metal but an alloy may be sufficient and the thing which performed the plating process to these may be sufficient.

The cable 34 is covered with a noise absorber that absorbs noise conducted through the cable 34. Thereby, since the noise which generate | occur | produces during a test can be absorbed effectively, the test of the electronic device P can be performed precisely. As such a noise absorber, for example, Lumidion (registered trademark) ET manufactured by Toyo Service Co., Ltd. can be used.

The length of the cable 34 is such that when one end (holding means 33) is located at a predetermined position (test position) inside the test box 10, the other end (terminal T) is the end of the belt conveyor 30 (the test box 10). The length is located near the entrance side. In addition, since the plurality of holding units 33 each include such a cable 34, a cable bundle 34 </ b> C in which the plurality of cables 34 are gathered is laid adjacent to the holding unit 33 on the conveyance surface of the belt 31.

According to the belt conveyor 30 as described above, since the belt 31 includes a plurality of holding means 33 provided at regular intervals, by installing the electronic device P in the holding means 33, the electronic device P Can be continuously carried into the test box 10 in the order of installation and regularly, and the operation of the electronic device P can be tested.

[Electronic equipment test method]
Next, an electronic device test method according to an embodiment of the present invention will be described with reference to the drawings as appropriate, while explaining the operation of the electronic device test apparatus 1 configured as described above.
FIGS. 9 to 12 are views for explaining the operation of the test apparatus for electronic equipment, (a) is a sectional view of a test box and a waveguide, and (b) is a side view of an end portion of a belt conveyor. (C) is a top view of the edge part of a belt conveyor. Although the belt 31 is provided with a plurality of holding means 33, the holding means 33 is not shown in FIGS. 9 to 12 (b) and (c) because it is not necessary for explanation.

(1) A plurality of electronic devices P (P _A , P _B , P _C , P _D , P _E ...) Are sequentially installed on the holding means 33 provided on the belt 31 (see FIG. 2). ), The connector 33a (see FIG. 8) provided in the holding means 33 and the connection terminal (not shown) of the electronic device P are electrically connected. The electronic device P may be installed on the holding means 33 when the belt 31 is stopped or when the belt 31 is driven.

(2) As shown in FIG. 2, the electronic device P installed in the holding means 33 is transported in the direction of the test box 10 as the belt 31 is driven, and passes through the inside of the waveguide 20A. Then, it is transported (loaded) into the test box 10. Then, as shown in FIG. 9 (a), after the test of the electronic device P _B, the electronic device P _C is conveyed to a predetermined position inside the test chamber 10 (test position).
Here, the slide door 23 is controlled by a control unit (for example, a computer or the like, not shown) so as to be in an open state when the belt 31 is driven and in a closed state when the belt 31 is stopped. Accordingly, when the electronic device P _C the belt 31 is driven is conveyed, the slide door 23 is in the door opening state, it is possible to carry the electronic device P _C to the interior of the test chamber 10.

The electronic device P _C which passes through the inside of the waveguide 20A is brought into contact with a plurality of curtain 24 disposed inside the waveguide 20A, the curtain 24 as described above are relatively soft cloth because it is, it does not damage the electronic equipment P _C.

(3) When the electronic device P _C reaches the interior of the test position of the test box 10, as shown in FIG. 10 (a), the control unit (not shown) performs a control to stop the belt 31 At the same time, control for closing the slide door 23 is executed.
The timing at which the control unit (not shown) executes the control to stop the belt 31 is, for example, when the drive shaft of a drive source (for example, a motor) that drives the belt 31 rotates a predetermined number of times, that is, the belt When 31 (holding means 33) moves a predetermined distance or for a predetermined time, or when a sensor (not shown) provided in the test box 10 and / or on the belt conveyor 30 detects that the holding means 33 reaches the test position. It can be.

When holding means 33 is installed an electronic device P _C is in the testing position, the terminal T _C of the other end of the cable 34, one end of which is connected to the holding means 33 (see FIG. 8) is of FIG. 10 ( As shown in b), it is located at the end 30E of the belt conveyor 30. Note that the end 30E is the end of the test box 10 on the inlet direction side.
In the vicinity of the end 30E, as shown in FIGS. 10B and 10C, a test unit 40 and an external terminal RT connected to the test unit 40 are provided. The test unit 40 can detect whether the electronic device P is receiving radio waves and determine whether the electronic device P is operating normally, and can send various instructions to the electronic device P to operate. It is a device that can.

At this time, as shown in FIG. 10 (a), the electronic device P _D next test is performed in the interior of the waveguide 20A is loaded, the inside of the waveguide 20B electronic device P _The electronic device P _B for which the test has been completed is located before _C. Further, an electronic device P _E (not shown) before the test is located outside the waveguide 20A, and an electronic device P _A (the test is completed before the electronic device P _B outside the waveguide 20B. (Not shown) is being carried out.

(4) When the belt 31 stops, the control unit (not shown) executes control to rotate the external terminal RT as shown in FIGS. 11 (b) and 11 (c). An external terminal RT is connected to the the front end portion and the terminal T _C is electrically rotated, so that it is exchanged electrical signals between the electronic device P _C and the test unit 40. Thereafter, as shown in FIG. 11 (a), it emits radio waves from the antenna 14 to the electronic device _{P C.}

(5) Test of operation of the electronic device P _C while emitting radio waves from the antenna 14 is performed by detecting the reception state of radio waves of the electronic apparatus P _C in the test unit 40. In the test unit 40 determines whether the electronic device P is operating normally by detecting the reception state of radio waves of the electronic apparatus P _C. At this time, it is possible to test the horizontal wave and the vertical wave by rotating the antenna 14. In addition, the above-described radio wave transmission / reception unit (not shown) can be tested by changing the intensity or frequency band of the radio wave radiated from the antenna 14.

(6) (not shown) control unit When the electronic device P test _C operation is completed, executes the control to rotate the external terminal RT in a reverse direction, the electrical connection between the external terminal RT and the terminal T _C (See (b) and (c) of FIG. 10). Then, by executing the control to again drive the belt 31, as shown in Figure 12 (a), and starts the conveyance of the electronic device P _C, executes control to door opening the sliding door 23. Thus, the electronic device P _C is, while being transported to the outside direction of the test box 10 through the interior of the waveguide 20B (out), then test line to the interior of the test position of the test chamber 10 dividing the electronic device P _D is conveyed.
The above is a series of operations of the electronic apparatus test apparatus 1 and the electronic apparatus test method.

According to such an electronic device testing method, a plurality of electronic devices P (P _A , P _B , P _C , P _D , P _E ...) Are sequentially held by the holding means provided on the belt 31 of the belt conveyor 30. It is possible to continuously test the operation of a large number of electronic devices P by installing them at 33 and carrying them in to the test position inside the test box 10 and carrying out the tests, and then carrying them out of the test box 10. it can.

Further, according to such an electronic device test method, when the test is performed, the slide door 23 that shields external radio waves completely opens the opening 21a of the waveguides 20A and 20B (waveguide body 21). Since it is closed, the test of the operation of the electronic device P can be accurately performed in a state where the radio wave shielding property of the test box 10 is maintained.

Although one embodiment of the present invention has been described above, the embodiment of the present invention is not limited to this. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention, For example, the following changes are possible.

In the above-described embodiment, a mobile phone is illustrated and described as the electronic device P. However, the electronic device P to be tested of the present invention is not limited to the mobile phone. For example, it may be a notebook personal computer equipped with a PDA (Personal Digital Assistance) or a wireless LAN (Local Area Network) function for transmitting and receiving radio waves in the same manner as a mobile phone. Further, it may be a precision measuring instrument or a medical instrument that is not preferably affected by external radio waves. Furthermore, it may be a home appliance or a medical device that is not preferable to radiate radio waves of a predetermined value or more to the outside.

Further, the test box 10 is not limited to the above-described embodiment, and may be a large room (test room) in which a tester can enter and exit, for example, an anechoic chamber. Such a test chamber may be formed of a metal casing similarly to the test box 10, or may be a concrete structure having radio wave shielding and radio wave absorption, for example.

In the above-described embodiment, the housing 11 is formed by welding a plurality of metal panels 11a to a frame (not shown) serving as a skeleton. However, the present invention is not limited to this. It is good also as a structure which can be assembled and disassembled and formed by assembling these panels with bolts. In such a configuration, it is desirable to interpose a filler having radio wave shielding properties in the gaps between the plurality of metal panels. Thereby, the radio wave shielding property of the housing (test box) can be maintained well. As a filler having radio wave shielding properties, for example, a resistance loss body (for example, a carbon resistance sheet, a metal thin film) in which at least one of upper and lower surfaces is insulated by an insulating layer (for example, an adhesive tape that also serves as paper or an adhesive layer) A sheet body for electromagnetic shielding joining having a resistance sheet, a heat ray shielding film, etc. can be used. Specifically, for example, Lumidion (registered trademark) IR manufactured by Toyo Service Co., Ltd. can be used.

In the above-described embodiment, as shown in FIG. 1, the door 12 is provided with the window 12b. However, the present invention is not limited to this, and the door and the window may be provided separately. A plurality of doors and windows may be provided.

In the above-described embodiment, the radio wave absorber 13 is a λ / 4 type radio wave absorber, but is not limited thereto. For example, in order from the panel 11a (or panel 12a) side, a resistive film sheet (impedance 1088Ω), a spacer (38mm), a resistive film sheet (impedance 280Ω), a spacer (38mm), and a protective film (aluminum plate or aluminum foil). It is good also as a structure to arrange. According to such a configuration, two types of radio waves around 880 MHz and 2050 MHz can be absorbed. Further, similarly to the above-described radio wave absorber 22, a dipole type radio wave absorption sheet can also be used.
The radio wave absorber and radio wave absorption sheet as described above can also be provided on the inner surface side of the antenna waveguide 14a.

In the above-described embodiment, as shown in FIGS. 1 to 3, the waveguides 20 </ b> A and 20 </ b> B serving as the passage of the electronic device P are arranged on a straight line. However, the present invention is not limited to this. . For example, the waveguide 20A is attached to one side surface of the test box 10, and the waveguide 20B is attached to one of the side surfaces arranged at a position perpendicular to the one side surface, and the waveguides 20A and 20B are L-shaped in plan view. It is good also as a structure arrange | positioned in the shape (not shown). Moreover, it is good also as a structure which has arrange | positioned waveguide 20A, 20B to the same side surface of the test box 10 (not shown). The shape of the belt conveyor 30 (conveying means) is appropriately changed depending on the arrangement of the waveguides 20A and 20B.

In the above-described embodiment, as shown in FIGS. 1 to 3, the two waveguides 20A and 20B are provided. However, the present invention is not limited to this. For example, a single waveguide is used. It is good also as a structure which carries in / out and may provide three or more waveguides as needed.

In the above-described embodiment, the path of the electronic device P is the waveguides 20A and 20B, but is not limited thereto. For example, it is good also as a structure which provided the electromagnetic wave shielding means (door member etc.) in the cylindrical body 27 (for example, aluminum, aluminum alloy, etc.) as shown in FIG. Even in such a configuration, the radio wave from the outside can be shielded by the conductive metal forming the cylindrical body 27 and the radio wave shielding means (door member, curtain, etc.). The shielding property of radio waves can be suitably maintained. As shown in FIG. 13 (a), the above-described radio wave absorber 22 and seal member 26 (or a conductive thin film deposited on a flexible polymer fiber on the inner surface side of the cylindrical body 27 are also provided. Brush).

In the above-described embodiment, the door member is the slide door 23, but the present invention is not limited to this. For example, an opening / closing door 28 as shown in FIG. 13 may be used.
The open / close door 28 is rotatably attached to the cylinder 27 via a hinge (not shown), and can be opened and closed as appropriate. The open / close door 28 includes a door main body 28a made of aluminum or an aluminum alloy, and a rubber-based radio wave absorber 28b attached to the outer surface of the door main body 28a, like the slide door 23 described above. The opening / closing means of the opening / closing door 28 is not particularly limited in the present invention, and a known opening / closing means can be used. Specifically, for example, a wire, a chain, or the like attached to the lower portion of the door main body 28a can be opened (opened / closed) by winding it with a winding mechanism (not shown).

Moreover, as shown to (a) of FIG. 14, it is good also as a structure provided with a pair of opening-and-closing doors 281 and 282 (a so-called double door type). Furthermore, as shown in FIG. 14 (b), a configuration including a pair of sliding doors 231 and 232 may be adopted (so-called draw door type).
Similarly to the slide door 23 described above, the door member as described above also has an opening in a passage (waveguides 20A, 20B, cylindrical body 27, etc.) at least when a test is performed by a control unit (not shown). The door is controlled to be opened and closed so as to block the radio waves from the outside. In the case of the opening / closing doors 281 and 282 shown in FIG. 14A, when the electronic device P passes, the door is directly pushed open by the electronic device P (holding means 33) itself, and the electronic device P passes through. After that, the door may be closed by a biasing means such as a spring provided on a hinge (not shown).
The opening / closing direction of the door member (including the slide door 23) as described above is not limited to the illustrated direction, and can be set as appropriate. Moreover, the opening / closing direction of the door member may be different in the entrance-side passage and the exit-side passage.

In the embodiment and the modification described above, as shown in FIGS. 2 and 13, the door member (the slide door 23, the open / close door 28, etc.) passes through the passage (waveguides 20A, 20B, cylinder 27) outside. However, the present invention is not limited to this. However, the present invention is not limited to this. That is, it is good also as a structure which provided the door member also in the opening part (for example, 21b) inside a channel | path, or the inside of a channel | path. Moreover, it is good also as a structure which uses curtain 24 together in such a structure. When a plurality of door members are provided in one passage, only the same type of door members may be used, or different types of door members may be combined.

In the above-described embodiment, as shown in FIGS. 2 and 13, the opening is provided inside the passage ( waveguides 20A and 20B, the cylindrical body 27, etc.) and the curtain 24 is provided inside the passage. However, the present invention is not limited to this. For example, a configuration in which a relatively thin rubber-based electromagnetic wave absorber is provided instead of the curtain 24 may be employed.

In the above-described embodiment, the metal filter (filter 25) is a mesh laminate in which a plurality of meshes made of aluminum or an aluminum alloy are stacked. However, the present invention is not limited to this. For example, it may be an aluminum piece filter constituted by a collection of small pieces (metal pieces) of aluminum or aluminum alloy, or a mesh laminate in which a plurality of meshes made of steel or stainless steel are stacked.

In the above-described embodiment and modification, the casing 11, the door 12, the waveguide main body 21, the cylindrical body 27, the door main bodies 23a and 28a, etc. are formed of aluminum or aluminum alloy, but are not limited thereto. is not. For example, steel, stainless steel, copper or the like can be used. In addition, the casing 11 and the like are made of metal to enhance the shielding property and the rigidity of external radio waves. However, the present invention is not limited to this. For example, the casing 11 is made of a plate material that shields radio waves. May be.

In the above-described embodiment, the conveying means is the belt conveyor 30 that uses the belt 31 stretched around the plurality of rollers 32a of the roller-equipped table 32 as the conveying portion, but is not limited thereto. For example, a net conveyor, a mesh conveyor, an air conditioner bear, etc. may be used. In order to carry the electronic device P into the test box 10 and carry it out of the test box 10, at least the transport surface of the transport unit (for example, the belt 31) is connected to the test box 10 and the passage (waveguide). 20A, 20B, the structure which passes the inside of the cylinder 27) is sufficient. Further, it is desirable that these conveying means are made of a non-conductive material that easily transmits radio waves, specifically, resin, rubber, ceramics, wood, or the like.

In the above-described embodiment, the holding means 33 is provided on the belt 31 so as to carry the mobile phone as the electronic device P into the test box 10 from the mouthpiece side, but is not limited thereto. is not. For example, the belt 31 may be provided so as to be carried into the test box 10 from the antenna side of the mobile phone, or may be provided on the belt 31 so that the mobile phone is in a lateral direction with respect to the opening 21a. In addition, it is a matter of course that the shape and size of the holding means (and the connector) are appropriately changed according to the type of the electronic device P.

In the embodiment described above, the electronic device P is installed and transported on the holding means 33. However, the present invention is not limited to this, and the electronic device P is directly placed on the transport surface of the belt 31 where the holding means 33 is not provided. It is good also as a structure which conveys. In the case of such a configuration, by connecting a connector (not shown) provided at one end of the cable 34 to the connection terminal of the electronic device P, at least when performing the test, the electronic device P and the test unit 40 Can be electrically connected.

In the above-described embodiment, the terminal T and the external terminal RT are connected at the end 30E of the belt conveyor 30 on the entrance direction side of the test box 10, but the end portion on the exit direction side of the test box 10 is used. It is good also as a structure performed by. Further, the connection method between the terminal T and the external terminal RT is not limited to the above-described embodiment (see FIG. 11).

In the above-described embodiment, the test unit 40 and the external terminal RT are provided in the vicinity of the end 30E of the belt conveyor 30, that is, outside the test box 10. However, the present invention is not limited to this. The external terminal RT may be provided inside the test box 10. In the case of such a configuration, for example, without providing the cable 34, a terminal (not shown) electrically connected to the connector 33a is exposed on the holding means 33, and this terminal (at least when performing a test) (Not shown) and the external terminal RT can be electrically connected. Alternatively, only the external terminal RT may be provided inside the test box 10.

In addition, when taking out a cable etc. from the inside of the test box 10 to the outside (or when putting it in from the outside of the test box 10), it is desirable to provide an EMI duct (not shown). The EMI (Electro Magnetic Interference) duct is a duct through which cables and the like can be inserted into and out of the test box 10 while preventing electromagnetic interference. Specifically, for example, a noise absorber such as a magnetic tape is wound around a cable, and a part thereof is passed through a duct provided in the test box 10. According to this, the radio wave shielding of the test box 10 can be suitably maintained, and noise generated from the cable can be effectively absorbed.

In the above-described embodiment, the door member (for example, the slide door 23) is controlled by a control unit (not shown) so that the door 31 is opened when the belt 31 is driven and closed when the belt 31 is stopped. However, the present invention is not limited to this. For example, a known sensor (not shown) may be provided on the belt conveyor 30 to control the opening and closing of the door member by detecting the passage of the electronic device P (holding means 33).

In the above-described embodiment, the electronic apparatus testing apparatus 1 includes a single test box 10, a pair of waveguides 20A and 20B (passages), and a single belt conveyor 30 (conveying means). However, the present invention is not limited to this. For example, a plurality of test boxes (or test chambers) having a pair of passages may be arranged in series and communicated with each other by a single conveying means. According to such a configuration, two or more different types of tests can be continuously performed on the electronic device P. Moreover, it is good also as a structure which provides several pairs of channel | paths in parallel in one test box (or test room), and is provided with a conveyance means, respectively.

In the above-described embodiment, the electronic device test method has been described in which the test unit 40 determines whether or not the electronic device P can normally receive radio waves by radiating radio waves from the antenna 14 to the electronic device P. The test method is not limited to this. For example, the test unit 40 transmits various instructions to the electronic device P, transmits radio waves from the electronic device P to the antenna 14, and measures the radio waves received by the antenna 14 with a radio wave transmission / reception unit (not shown). May be.

Claims (25)

1. A test box for testing electronic devices;
   A passage having radio wave shielding means for shielding radio waves from the outside at the time of performing a test, while communicating between the outside and the inside of the test box;
   An electronic device test apparatus comprising: a transport unit having a transport unit for transporting the electronic device;
   An electronic apparatus test apparatus, wherein the transport unit is configured to be able to pass through the passage, and the electronic apparatus is carried into the test box and unloaded from the test box.
2. 2. The test apparatus for electronic equipment according to claim 1, wherein the passage has radio wave absorptivity inside.
3. 2. The electronic device according to claim 1, wherein the passage includes a pair of an inlet-side passage and an outlet-side passage, and the inlet-side passage and the outlet-side passage are arranged on a straight line. Test equipment.
4. 4. The electronic apparatus testing apparatus according to claim 1, wherein the radio wave shielding means includes a curtain made of a conductive cloth.
5. 2. The electronic apparatus testing apparatus according to claim 1, wherein the radio wave shielding means includes a door member that opens and closes the passage in conjunction with the movement of the transport unit.
6. 6. The electronic device according to claim 5, wherein the door member includes a door main body made of an aluminum plate or an aluminum alloy plate, and a rubber-based electromagnetic wave absorber attached to the door main body. Test equipment.
7. 2. The electronic apparatus test apparatus according to claim 1, wherein the passage is a waveguide that does not propagate radio waves having a wavelength longer than a predetermined wavelength.
8. 2. The electronic apparatus testing apparatus according to claim 1, wherein the test box is made of a metal casing having radio wave shielding properties.
9. 9. The electronic device according to claim 8, wherein the metal casing is configured by assembling a plurality of metal members, and the plurality of metal members are joined together by welding. Test equipment.
10. 10. The electronic apparatus testing apparatus according to claim 8 or 9, wherein at least one of the metal casing and the passage is made of aluminum or an aluminum alloy.
11. 2. The test apparatus for electronic equipment according to claim 1, wherein the test box has a window through which the inside of the test box can be visually confirmed.
12. 12. The electronic apparatus testing apparatus according to claim 11, wherein the window has a radio wave shielding property.
13. 2. The test apparatus for electronic equipment according to claim 1, wherein the test box has a door that can be freely opened and closed.
14. The test apparatus for electronic equipment according to claim 1, wherein a measurement antenna for transmitting and receiving radio waves to and from the electronic equipment is provided inside the test box.
15. The axis of the antenna for measurement can be rotated around the axis so that the plane of polarization of the radio wave radiated from the antenna for measurement and the plane of polarization of the radio wave radiated from the antenna of the electronic device are parallel or perpendicular to each other. The electronic apparatus test apparatus according to claim 14, wherein the test apparatus is an electronic apparatus test apparatus.
16. 16. The electronic apparatus according to claim 14, wherein a distance between the measurement antenna and the antenna of the electronic apparatus is not less than a wavelength λ of a radio wave radiated from the measurement antenna. Testing equipment.
17. 15. The test apparatus for electronic equipment according to claim 14, further comprising a magnetic sheet in the vicinity of the measurement antenna on the inner surface of the test box.
18. The transport unit includes a plurality of holding means for holding the electronic device,
    The electronic device test according to claim 1, wherein the holding means includes a connector to which one end of a cable is connected and electrically connects the cable and the electronic device. apparatus.
19. 19. The electronic apparatus testing apparatus according to claim 18, wherein the cable is covered with a noise absorber that absorbs noise.
20. The cable is laid adjacent to the holding means provided in the transport unit, and has a terminal on the other end opposite to the one end. The terminal is a test unit that determines the state of the electronic device. 20. The electronic device testing apparatus according to claim 18 or 19, which is connected to the connected external terminal at least when performing a test.
21. 19. The electronic apparatus testing apparatus according to claim 18, wherein the transport unit is a belt made of a rubber-based electromagnetic wave absorber.
22. 2. The electronic apparatus testing apparatus according to claim 1, wherein the passage includes a metal filter that shields radio waves from the outside, below the transport section that passes through the passage. .
23. 2. The test apparatus for electronic equipment according to claim 1, wherein at least one of the test box and the passage is provided with a λ / 4 type wave absorber.
24. 2. The test apparatus for electronic equipment according to claim 1, wherein the test box is provided with illumination inside.
25. An electronic equipment test method using the electronic equipment test apparatus according to claim 1, wherein a plurality of electronic equipments are placed in order on the transport portion of the transport means, An electronic device testing method comprising carrying in a predetermined position and testing the electronic device, and then carrying the electronic device out of the test box by the transport means.

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