Shielding box for radio frequency test

Abstract

The utility model discloses a shielding box for a radio frequency test, which comprises a shielding box body, the shielding box body is internally provided with a cavity, the side surface of the cavity is provided with a through hole, and the through hole penetrates through the outer side of the shielding box body; the air drying mechanism is arranged on the side face of the shielding box and communicated with the through hole so as to be suitable for air drying of the cavity; the opening and closing mechanism is arranged at the position of the through hole and communicated with the through hole, the opening and closing mechanism can rotate in the cavity in the first direction or the second direction so that the opening and closing mechanism can be switched to be in an opening state or a closing state so as to be suitable for opening or closing the through hole, and when the opening and closing mechanism rotates in the first direction, the opening and closing mechanism can be switched to be in a closed state or a closed state so that the through hole can be opened or closed. When the opening and closing mechanism rotates towards the first direction, the opening and closing mechanism is switched to the opening state so that the air drying mechanism can dry the cavity, and when the opening and closing mechanism rotates towards the second direction, the opening and closing mechanism is switched to the closing state so that the through hole can be closed.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency testing, and particularly relates to a shielding box for radio frequency testing. Background Art

[0002] Radio frequency, abbreviated as RF, is radio frequency current, which is a kind of high-frequency alternating current changing electromagnetic wave. Alternating current with less than 1000 changes per second is called low-frequency current, and that with more than 10000 changes per second is called high-frequency current, and radio frequency is such a high-frequency current; the tests for GSM, WCDMA, CDMA2000, Bluetooth, Wi-Fi, WiMAX, etc. all belong to RF tests.

[0003] During radio frequency testing, generally the product is placed in a shielding box that can shield external electromagnetic waves for testing. However, external moisture may enter the shielding box during daily placement or testing. Once moisture enters the inside of the shielding box, it will affect the test effect and even damage the radio frequency components. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems in the related technologies to some extent. For this purpose, an object of the utility model is to provide a shielding box for radio frequency testing, including:

[0005] A shielding box, which is provided with a cavity inside, and a through hole is provided on the side surface of the cavity, and the through hole penetrates through the outside of the shielding box;

[0006] An air drying mechanism, which is arranged on the side surface of the shielding box and is communicated with the through hole to be suitable for drying the cavity;

[0007] An opening and closing mechanism, which is arranged at the through hole and is communicated with the through hole. The opening and closing mechanism can rotate in a first direction or a second direction inside the cavity to switch to an open state or a closed state, so as to be suitable for opening or closing the through hole. When the opening and closing mechanism rotates in the first direction, the opening and closing mechanism switches to the open state to enable the air drying mechanism to dry the cavity. When the opening and closing mechanism rotates in the second direction, the opening and closing mechanism switches to the closed state to seal the through hole.

[0008] Preferably, the shielding box includes:

[0009] A first box body;

[0010] A second box body, which is arranged on the first box body and jointly encloses the cavity with the first box body;

[0011] Two hinges, the two hinges are arranged at the rear ends of the first box body and the second box body, and the upper ends of the two hinges are connected to the first box body, and the lower ends of the two hinges are connected to the second box body.

[0012] Preferably, the shielding box further includes:

[0013] A handle, the handle is arranged at the front end of the first box body;

[0014] Two first air rods, the two first air rods are respectively arranged on both sides of the first box body and the second box body, and one end of the two first air rods is connected to the first box body, and the other end is connected to the second box body;

[0015] A socket, the socket is arranged at the rear end of the second box body.

[0016] Preferably, the air-drying mechanism includes:

[0017] A blower, the blower is arranged on the side of the first box body;

[0018] A first connecting pipe, one end of the first connecting pipe is connected to the first end of the blower, and the other end is connected to the through hole;

[0019] A filter screen, the filter screen is arranged in the through hole;

[0020] A second connecting pipe, the second connecting pipe is connected to the second end of the blower;

[0021] A drying box, the drying box is connected to the second connecting pipe.

[0022] Preferably, the opening and closing mechanism includes:

[0023] A fixing plate, the fixing plate is arranged on the side of the first box body;

[0024] An annular groove, the annular groove is arranged in the fixing plate and is arranged along the thickness direction of the fixing plate;

[0025] A connecting hole, the connecting hole is arranged in the annular groove and is arranged through along the thickness direction of the fixing plate and corresponds to the through hole;

[0026] An arc-shaped groove, the arc-shaped groove is arranged on the outer peripheral surface of the fixing plate and penetrates into the annular groove to communicate with the annular groove.

[0027] Preferably, the opening and closing mechanism further includes:

[0028] A plurality of positioning columns, the plurality of positioning columns are equidistantly arranged in the annular groove;

[0029] A fixing ring, which is arranged in the annular groove and is slidably connected to the annular groove;

[0030] A plurality of sliding grooves, which are arranged on the fixing ring at equal intervals. A plurality of positioning columns are respectively slidably arranged in the plurality of sliding grooves, and the plurality of sliding grooves are arranged in an arc shape;

[0031] A connecting piece, one end of which is connected to the fixing ring, the other end extends outside the arc-shaped groove, and the connecting piece is slidably connected to the arc-shaped groove.

[0032] Preferably, the opening and closing mechanism further includes:

[0033] A positioning ring, which is arranged in the annular groove and on the outer peripheral surface of the connecting hole;

[0034] A plurality of positioning columns, which are arranged on the positioning ring at equal intervals;

[0035] A plurality of rotating parts, which are respectively rotatably connected to the plurality of positioning columns;

[0036] A plurality of connecting rods, which are arranged on the fixing ring at equal intervals. One end of the plurality of connecting rods is rotatably connected to the fixing ring, and the other end is respectively rotatably connected to the plurality of rotating parts;

[0037] A second air rod, one end of which is fixed to the side surface of the cavity, and the other end of the second air rod is connected to the connecting piece.

[0038] The above solution of the present utility model has at least the following beneficial effects:

[0039] When the shielding box is not in use, the inside of the shielding box can be air-dried by the air-drying mechanism, so as to remove the moisture in the shielding box. When the air-drying mechanism is working, the opening and closing mechanism rotates in the first direction, so as to switch to the open state, so that the air-drying mechanism can air-dry the cavity inside the shielding box. When the air-drying is completed, the opening and closing mechanism rotates in the second direction, so as to switch to the closed state. Then, the product to be tested can be placed in the cavity, and the opening and closing mechanism switches to the closed state to seal the through hole, so as to prevent moisture from entering the shielding box through the air-drying mechanism from the through hole, so as to make the test data of the product accurate and ensure that the radio frequency components are not damaged.

[0040] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0042] Figure 1 is a schematic structural diagram of a shielding box provided in an embodiment of the present invention for radio frequency testing;

[0043] Figure 2 is Figure 1 a schematic cross-sectional structural diagram of A-A of

[0044] Figure 3 is Figure 2 an enlarged view of part B of

[0045] Figure 4 is a schematic structural diagram of an opening and closing mechanism provided in an embodiment of the present invention;

[0046] Figure 5 is a schematic structural diagram of a fixing plate provided in an embodiment of the present invention.

[0047] Explanation of the reference numerals in the drawings:

[0048] 1. Shielding box, 2. Air drying mechanism, 3. Opening and closing mechanism, 4. Cavity, 5. Through hole;

[0049] 101. First box body, 102. Second box body, 103. Hinge, 104. Handle, 105. First air rod, 106. Plug-in seat;

[0050] 201. Fan, 202. First connecting pipe, 204. Second connecting pipe, 205. Drying box;

[0051] 301. Fixing plate, 302. Annular groove, 303. Connecting hole, 304. Arc groove, 305. Positioning column, 306. Fixed ring, 307. Slide groove, 308. Connecting piece, 309. Positioning ring, 310. Rotating column, 311. Rotating piece, 312. Connecting rod, 313. Second air rod.

[0052] The realization of the purpose, functional characteristics and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0053] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0054] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0056] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0057] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0058] The following describes in detail the shielding box for radio frequency testing according to an embodiment of the present utility model with reference to the accompanying drawings.

[0059] Please refer to Figures 1 to 5 , in this embodiment, it includes: a shielding box 1, a cavity 4 is provided inside the shielding box 1, and a through hole 5 is provided on the side surface of the cavity 4, and the through hole 5 penetrates through the outer side of the shielding box 1; a drying mechanism 2, the drying mechanism 2 is arranged on the side surface of the shielding box 1 and is communicated with the through hole 5 to be suitable for drying the cavity 4; an opening and closing mechanism 3, the opening and closing mechanism 3 is arranged at the through hole 5 and is communicated with the through hole 5, and the opening and closing mechanism 3 can rotate in the cavity 4 in a first direction or a second direction to switch to an open state or a closed state, so as to be suitable for opening or closing the through hole 5. When the opening and closing mechanism 3 rotates in the first direction, the opening and closing mechanism 3 switches to the open state, so that the drying mechanism 2 dries the cavity 4. When the opening and closing mechanism 3 rotates in the second direction, the opening and closing mechanism 3 switches to the closed state to seal the through hole 5; when the shielding box 1 is not in use, the inside of the shielding box 1 can be dried through the drying mechanism 2, so as to remove the moisture inside the shielding box 1. When the drying mechanism 2 is working, the opening and closing mechanism 3 rotates in the first direction, so as to switch to the open state, so that the drying mechanism 2 can dry the cavity 4 inside the shielding box 1. After drying is completed, the opening and closing mechanism 3 rotates in the second direction, so as to switch to the closed state. Subsequently, the product to be tested can be placed inside the cavity 4, and the opening and closing mechanism 3 switches to the closed state to seal the through hole 5, so as to prevent moisture from entering the shielding box 1 from the through hole 5 through the drying mechanism 2, so as to make the test data of the product accurate and ensure that the radio frequency components are not damaged.

[0060] In this embodiment, the shielding box 1 includes: a first box body 101; a second box body 102, which is arranged on the first box body 101 and jointly encloses a cavity 4 with the first box body 101; two hinges 103, which are arranged at the rear ends of the first box body 101 and the second box body 102, and the upper ends of the two hinges 103 are connected to the first box body 101, and the lower ends of the two hinges 103 are connected to the second box body 102; the shielding box 1 further includes: a handle 104, which is arranged at the front end of the first box body 101; two first air rods 105, which are respectively arranged on both sides of the first box body 101 and the second box body 102, and one end of the two first air rods 105 is connected to the first box body 101, and the other end is connected to the second box body 102; a socket 106, which is arranged at the rear end of the second box body 102; before the test, one can hold the handle 104 and lift the second box body 102, and the two first air rods 105 extend, and then place the product to be tested in the first box body 101, and then pull the handle 104 to pull down the second box body 102, and the two first air rods 105 contract, so that the first box body 101 and the second box body 102 enclose the product inside, and finally the test of the product can be started.

[0061] In this embodiment, the air-drying mechanism 2 includes: a fan 201, which is arranged on the side of the first box body 101; a first connecting pipe 202, one end of the first connecting pipe 202 is connected to the first end of the fan 201, and the other end is connected to a through hole 5; a filter screen (not shown in the figure), which is arranged in the through hole 5; a second connecting pipe 204, which is connected to the second end of the fan 201; a drying box 205, which is connected to the second connecting pipe 204, and a desiccant is placed in the drying box 205; before the fan 201 evacuates and dries the cavity 4, the opening and closing mechanism 3 rotates in the first direction and switches to the open state, and then the air-drying mechanism evacuates and dries the cavity 4 through the first connecting pipe 202 to discharge the moisture in the shielding box 1 into the drying box 205, so as to ensure that the shielding box 1 will not affect the test effect and data due to moisture during use. When the air-drying work is completed, the opening and closing mechanism 3 rotates in the second direction and switches to the closed state.

[0062] In this embodiment, the opening and closing mechanism 3 includes: a fixing plate 301 disposed on the side surface of the first box body 101; an annular groove 302 disposed in the fixing plate 301 and arranged along the thickness direction of the fixing plate 301; a connecting hole 303 disposed in the annular groove 302 and penetrating along the thickness direction of the fixing plate 301 and corresponding to the through hole 5; an arc-shaped groove 304 disposed on the outer peripheral surface of the fixing plate 301 and penetrating into the annular groove 302 to communicate with the annular groove 302; the opening and closing mechanism 3 further includes: a plurality of positioning columns 305 equally spaced in the annular groove 302; a fixing ring 306 disposed in the annular groove 302 and slidably connected to the annular groove 302; a plurality of sliding grooves 307 equally spaced on the fixing ring 306, and the plurality of positioning columns 305 are respectively slidably disposed in the plurality of sliding grooves 307, and the plurality of sliding grooves 307 are arc-shaped; a connecting member 308, one end of the connecting member 308 is connected to the fixing ring 306, and the other end extends outside the arc-shaped groove 304, and the connecting member 308 is slidably connected to the arc-shaped groove 304; the opening and closing mechanism 3 further includes: a positioning ring 309 disposed in the annular groove 302 and on the outer peripheral surface of the connecting hole 303; a plurality of rotating columns 310 equally spaced on the positioning ring 309; a plurality of rotating members 311 respectively rotatably connected to the plurality of rotating columns 310; a plurality of connecting rods 312 equally spaced on the fixing ring 306, one end of the plurality of connecting rods 312 is rotatably connected to the fixing ring 306, and the other end is respectively rotatably connected to the plurality of rotating members 311; a second air rod 313, one end of the second air rod 313 is fixed to the side surface of the cavity 4, and the other end of the second air rod 313 is connected to the connecting member 308.

[0063] In this embodiment, when it is necessary to switch to the open state, the second air rod 313 pushes the connecting member 308 to slide in the arc-shaped groove 304 in the first direction, so that the connecting member 308 drives the fixed ring 306 to rotate in the annular groove 302, and when the fixed ring 306 rotates, it drives a plurality of connecting rods 312 to rotate, so that the plurality of connecting rods 312 respectively drive a plurality of rotating members 311 to rotate on a plurality of rotating columns 310 respectively, so that the plurality of rotating members 311 move away from each other, enabling the air drying mechanism 2 to air dry the cavity 4; when it is necessary to switch to the closed state, the second air rod 313 pulls the connecting member 308 to slide in the arc-shaped groove 304 in the second direction, so that the connecting member 308 drives the fixed ring 306 to rotate in the annular groove 302, and the plurality of connecting rods 312 on the fixed ring 306 also rotate accordingly, so that the plurality of connecting rods 312 respectively drive a plurality of rotating members 311 to rotate on the positioning rotating columns 310 respectively, so that the plurality of rotating members 311 approach each other until they are in contact with each other and close the through hole 5, so that moisture will not enter the cavity 4 from the air drying mechanism 2 through the through hole 5, and closing the through hole 5 can also ensure the accuracy of the test data.

[0064] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0065] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A shielding box for radio frequency testing, characterized in that: include: A shielding box, wherein a cavity is provided in the shielding box, and a through hole is provided on a side of the cavity, and the through hole passes through the outside of the shielding box; An air drying mechanism, which is disposed on a side of the shielding box and is connected to the through hole so as to be suitable for air drying the cavity; An opening and closing mechanism is arranged at the through hole and is connected to the through hole. The opening and closing mechanism can rotate in the first direction or the second direction in the cavity to switch to an open state or a closed state, so as to be suitable for opening or closing the through hole. When the opening and closing mechanism rotates in the first direction, the opening and closing mechanism switches to the open state so that the air-drying mechanism can air-dry the cavity. When the opening and closing mechanism rotates in the second direction, the opening and closing mechanism switches to the closed state to seal the through hole.

2. The shielding box for radio frequency testing according to claim 1, characterized in that: The shielding box comprises: The first box; a second box body, the second box body being disposed on the first box body and enclosing the cavity together with the first box body; Two hinges are arranged at the rear ends of the first box body and the second box body, and the upper ends of the two hinges are connected to the first box body, and the lower ends of the two hinges are connected to the second box body.

3. A shielding box for radio frequency testing according to claim 2, characterized in that: The shielding box also includes: A handle, the handle being arranged at the front end of the first box; Two first gas rods, the two first gas rods are respectively arranged on both sides of the first box and the second box, and one end of the two first gas rods is connected to the first box, and the other end is connected to the second box; A socket is arranged at the rear end of the second box.

4. The shielding box for radio frequency testing according to claim 3, characterized in that: The air-drying mechanism comprises: A fan, the fan being arranged on a side of the first box; a first connecting pipe, one end of which is connected to the first end of the fan, and the other end of which is connected to the through hole; A filter screen, the filter screen being arranged in the through hole; a second connecting pipe connected to a second end of the fan; A drying box is connected to the second connecting pipe.

5. The shielding box for radio frequency testing according to claim 4, characterized in that: The opening and closing mechanism comprises: A fixing plate, the fixing plate being arranged on a side surface of the first box body; an annular groove, the annular groove is arranged in the fixing plate and arranged along the thickness direction of the fixing plate; A connecting hole, which is arranged in the annular groove and is arranged through the fixing plate in the thickness direction and corresponds to the through hole; An arc-shaped groove is arranged on the outer peripheral surface of the fixing plate and penetrates into the annular groove to be connected with the annular groove.

6. The shielding box for radio frequency testing according to claim 5, characterized in that: The opening and closing mechanism also includes: A plurality of positioning posts, wherein the plurality of positioning posts are arranged in the annular groove at equal intervals; A fixing ring, the fixing ring is arranged in the annular groove and is slidably connected with the annular groove; A plurality of slide grooves, wherein the plurality of slide grooves are arranged on the fixing ring at equal intervals, the plurality of positioning posts are slidably arranged in the plurality of slide grooves respectively, and the plurality of slide grooves are arranged in an arc shape; A connecting piece, one end of which is connected to the fixing ring, and the other end of which extends outside the arc groove, and the connecting piece is slidably connected to the arc groove.

7. The shielding box for radio frequency testing according to claim 6, characterized in that: The opening and closing mechanism also includes: A positioning ring, the positioning ring is arranged in the annular groove and arranged on the outer peripheral surface of the connecting hole; A plurality of rotating columns, wherein the plurality of rotating columns are arranged on the positioning ring at equal intervals; A plurality of rotating members, wherein the plurality of rotating members are rotatably connected to the plurality of rotating columns respectively; A plurality of connecting rods, wherein the plurality of connecting rods are arranged on the fixing ring at equal intervals, one end of the plurality of connecting rods is rotatably connected to the fixing ring, and the other end of the plurality of connecting rods is rotatably connected to the plurality of rotating members respectively; A second gas rod, one end of which is fixed to the side surface of the cavity, and the other end of which is connected to the connecting piece.

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