Drawer type shielding box

Abstract

The utility model provides a drawer type shielding box, which comprises a fixed frame, at least two groups of shielding box bodies, a movable plate and a positioning device, one end of each shielding box body is provided with a feeding hole, the fixed frame is fixedly sleeved on the outer surface of each shielding box body, the movable plate passes through the feeding hole and is in sliding connection with the inner wall of the shielding box body, the movable plate is provided with a test groove, and the test groove is connected with the positioning device. Shielding covers are arranged at the outer ends of the movable plates; the positioning device can buckle the shielding cover from the inside of the shielding box body, so that the connection stability of the device is improved; an air inlet hole and an air outlet hole are formed in the shielding box body, waveguide tubes are arranged in the air inlet hole and the air outlet hole, and a fan is arranged on the waveguide tube of the air outlet hole in a covering manner; the upper and lower surfaces of the shielding box bodies are respectively provided with integral plates fixedly connected with each group of shielding box bodies, so that the integral stability of the plurality of shielding box bodies is improved. The device is reasonable in design, simple in structure, convenient to operate, capable of improving the testing efficiency of the shielding box body and high in practicability.

Description

Technical field:

[0001] The utility model relates to the technical field of shielding devices, in particular to a drawer-type shielding box. Background technology:

[0002] With the continuous development of communication technology, the demand for testing small mobile communication products has exploded, and the shielding box device is widely used as a signal device. The existing shielding box currently includes a box body and a shielding cover connected to the box body. A plurality of partitions are arranged in the box body, and the partitions divide the box body into a plurality of independent spaces for the product to be tested. During the test, the operator only needs to place the product in the box body, then close the shielding cover, and finally supply a fixed signal to the box body through the filter, so that the output and input capabilities of the signal of the product to be tested can be detected.

[0003] However, in order to improve the shielding performance, the prior art sets the multiple cover plates covering the multiple shielding cavities into an integral shielding cover, which results in the shielding cover covering the entire box body. Once the shielding cover is opened, the top wall of the entire box body is in an open state, resulting in low flexibility between the multiple independent spaces in the box body. Although the existing shielding box can detect multiple products to be tested at the same time, the detection time of the products in the box body must be consistent, otherwise once the shielding cover on the box body is opened, all the products to be tested will be affected. Once multiple different products are tested at the same time, the operator can only wait for the product with the longest detection time to be tested before opening the shielding cover, which greatly reduces the overall test efficiency of multiple products with different test times. This problem needs to be solved urgently. Therefore, the utility model proposes a drawer-type shielding box to solve the above problems. Summary of the invention:

[0004] The utility model aims to provide a drawer-type shielding box in view of the deficiencies in the prior art.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model provides a drawer-type shielding box, comprising a fixed frame, at least two groups of shielding box bodies and movable plates with the same number as the shielding box bodies; a feeding hole is arranged at one end of the shielding box body, the fixed frame is arranged at the feeding end of the shielding box body, and a fixed sleeve is arranged on the outer surface of each shielding box body to integrate each group of shielding box bodies into one; the movable plate passes through the feeding hole and is slidably connected to the inner wall of the shielding box body, a test slot for placing a test piece is arranged on the movable plate, and a shielding cover for covering the feeding hole is arranged at one end of the movable plate away from the shielding box body.

[0007] Furthermore, the shielding cover is provided with a boss on one side facing the shielding box body, and correspondingly, the fixing frame is provided with a sealing groove that matches the position and specification of the boss, and the boss can be embedded in the sealing groove. Through the embedded arrangement of the sealing groove and the boss, the path for the electromagnetic waves in the shielding box body to overflow can be increased, thereby improving the sealing performance of the entire shielding box body.

[0008] Furthermore, the device is also provided with a positioning device; the positioning device includes a knob, a rotating shaft, a buckle plate and a pad; the knob is arranged on the outer surface of the shielding cover on the side facing away from the shielding box body, and is rotatably connected to the shielding box body; the outer end of the rotating shaft passes through the shielding box body and is fixedly connected to the knob, and the inner end of the rotating shaft is fixedly connected to the buckle plate; the pad is arranged inside the shielding box body and is fixedly connected to the inner wall of the shielding box body; when the shielding cover is buckled with the fixed frame, the buckle plate rotates under the action of the knob and the rotating shaft and is clamped on the surface of the pad, so that the shielding cover can be buckled from the inside of the shielding box body, thereby improving the connection stability of the device.

[0009] Furthermore, the shielding box body is provided with an air inlet and an air outlet, and a waveguide is provided in each of the air inlet and the air outlet. The air inlet and the air outlet can form air circulation in the shielding box body, thereby taking away the heat generated by the DUT when being tested in the shielding box body, and the waveguide can prevent electromagnetic waves in the shielding box body from leaking while allowing air to pass through.

[0010] Furthermore, a fan is provided on the waveguide tube of the air outlet, and the fan can accelerate the air flow in the shielding box, thereby increasing the temperature reduction speed in the shielding box.

[0011] Furthermore, the number of the shielding box bodies is 2; the air inlet holes are arranged at one end close to the fixed frame, and the air outlet holes are arranged at one end close to the adjacent shielding box body, so as to increase the coverage area of ​​the air flow between the air inlet holes and the air outlet holes in the shielding box body as much as possible, thereby improving the heat dissipation effect in the shielding box body.

[0012] Furthermore, the upper and lower surfaces of the shielding box bodies are respectively provided with integral plates, and the integral plates are fixedly connected to each group of shielding box bodies, thereby improving the overall stability of the plurality of shielding box bodies.

[0013] Furthermore, holding flanges are respectively provided on both sides of the fixing frame, and holding handles are connected to the holding flanges. The holding flanges and the holding handles can provide fulcrums for the smooth shielding box body, thereby facilitating the movement of the shielding box body.

[0014] Furthermore, a U-shaped handle is provided on the surface of the shielding cover facing away from the shielding box body to facilitate pulling the movable plate.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model sets up multiple independent shielding boxes to make the test environment of the device to be tested independent, and opens inlet and outlet holes on the end face of the shielding box. Then, by pulling and inserting the movable plate, the disassembly and assembly action of the device to be tested in the shielding box is set to be carried out outside the shielding box. Finally, with the help of the shielding cover, the device to be tested is sent into the shielding box, which is also the process of covering the feeding hole with the shielding cover. Compared with the method of opening a feeding hole on the top wall of the shielding box and covering it by hinged top wall, this method of combining feeding and shielding reduces the opening and closing path of the feeding hole when disassembling and assembling the device to be tested, thus saving the actual space required for the shielding box. The drawer-type shielding box of this scheme reduces the overall space occupancy of the shielding box, increases the integration amount of the shielding box in a single cabinet, and then increases the test volume of the shielding box, thereby improving the test efficiency of the device to be tested.

[0017] (2) The utility model can increase the path for electromagnetic waves in the shielding box to overflow through the interlocking arrangement of the sealing groove and the boss, thereby improving the sealing performance of the entire shielding box.

[0018] (3) The utility model can buckle the shielding cover from the inside of the shielding box body by rotating the buckle plate by twisting the rotating shaft, and the gasket can further improve the stability of the buckle plate and the shielding frame body, thereby improving the connection stability of the shielding cover and the shielding box body.

[0019] (4) The utility model can form air circulation in the shielding box by setting the air inlet and outlet holes, thereby taking away the heat generated by the test piece when being tested in the shielding box, and ensuring the stability of the test piece during the testing process. The waveguide can prevent the leakage of electromagnetic waves in the shielding box while allowing air to pass through, and the fan can accelerate the air flow in the shielding box, thereby increasing the temperature reduction rate in the shielding box.

[0020] (5) The utility model arranges the air inlet and the air outlet at the diagonal of the shielding box body, so as to increase the coverage area of ​​the air flow between the air inlet and the air outlet in the shielding box body as much as possible, thereby improving the heat dissipation effect in the shielding box body.

[0021] (6) In the utility model, the ends of several shielding box bodies are fixedly connected to a fixed frame. Since the shielding box bodies are relatively long, the parts of the shielding box bodies outside the fixed frame are unstable and prone to shaking and deformation. The integral plate can integrate the several shielding box bodies into a whole, thereby improving the overall stability of the several shielding box bodies.

[0022] (7) The holding flange and the holding handle of the utility model can provide a fulcrum for the smooth shielding box body, thereby facilitating the operator to move the shielding box body. Description of the drawings:

[0023] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 It is a distribution diagram of the air inlet holes and air outlet holes of an embodiment of the present utility model;

[0025] The reference signs in the drawings are:

[0026] 1. Shielding box body; 11. Integral plate; 12. Holding flange; 13. Holding handle; 2. Air inlet hole; 21. Air outlet hole; 22. Waveguide; 23. Fan; 3. Fixed frame; 31. Sealing groove; 32. Boss; 33. Feeding hole; 34. Moving plate; 35. Testing groove; 36. Shielding cover; 4. Positioning device; 41. Rotating shaft; 42. Clamping plate; 43. Spacer block. Specific implementation manners:

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0028] Embodiment 1

[0029] Referring to Figures 1 - 2 , an embodiment of the present utility model provides a drawer-type shielding box, which includes a fixed frame 3, two groups of shielding box bodies 1 and two groups of moving plates 34; a feeding hole 33 is provided at one end of the shielding box body 1, the fixed frame 3 is arranged at the feeding end of the shielding box body 1 and is fixedly sleeved on the outer surface of each shielding box body 1 to integrate each group of shielding box bodies 1 into one body; the moving plate 34 passes through the feeding hole 33 and is slidably connected to the inner wall of the shielding box body 1, a testing groove 35 for placing a test piece is provided on the moving plate 34, and a shielding cover 36 for covering the feeding hole 33 is provided at one end of the moving plate 34 away from the shielding box body 1.

[0030] In this embodiment, a boss 32 is provided on the surface of the shielding cover 36 facing the shielding box body 1. Correspondingly, a sealing groove 31 with a position and specification adapted to those of the boss 32 is provided on the fixed frame 3, and the boss 32 can be embedded in the sealing groove 31. When the shielding cover 36 slides towards the shielding box body 1 along with the moving plate 34 and covers the feeding hole 33, the boss 32 is embedded in the sealing groove 31. Through the fitting arrangement of the sealing groove 31 and the boss 32, the path for the electromagnetic wave in the shielding box body 1 to overflow can be increased, thereby improving the sealing performance of the entire shielding box body 1.

[0031] In this embodiment, integral plates 11 are respectively disposed on the upper and lower surfaces of the shielding box bodies 1 , and the integral plates 11 are fixedly connected to each group of shielding box bodies 1 , thereby improving the overall stability of the plurality of shielding box bodies 1 .

[0032] In this embodiment, the two sides of the fixed frame 3 are respectively provided with holding flanges 12, and the holding flanges 12 are connected with holding handles 13. The holding flanges 12 and the holding handles 13 can provide a fulcrum for the smooth shielding box body 1, so as to facilitate the movement of the shielding box body 1. The surface of the shielding cover 36 facing away from the shielding box body 1 is provided with a U-shaped handle, so as to facilitate the pulling of the movable plate 34.

[0033] Example 2

[0034] The main structure of the embodiment of the utility model is the same as that of the embodiment 1, except that: the embodiment is further provided with a positioning device 4.

[0035] Specifically, refer to Figures 1 - 2 In this embodiment, the positioning device 4 includes a knob, a rotating shaft 41, a pinch plate 42 and a cushion block 43. The knob is arranged on the outer surface of the shielding cover 36 on the side facing away from the shielding box body 1 and is rotatably connected to the shielding box body 1. The outer end of the rotating shaft 41 passes through the shielding box body 1 and is fixedly connected to the knob. The inner end of the rotating shaft 41 is fixedly connected to the pinch plate 42. The cushion block 43 is arranged inside the shielding box body 1 and is fixedly connected to the inner wall of the shielding box body 1. Twisting the knob can drive the rotating shaft 41 to rotate, thereby driving the pinch plate 42 to flip to the cushion block 43, so as to achieve the positioning effect.

[0036] When the shielding cover 36 is buckled with the fixing frame 3, the buckle plate 42 rotates under the action of the knob and the rotating shaft 41 and is clamped on the surface of the cushion block 43, so that the shielding cover 36 can be buckled from the inside of the shielding box body 1 to improve the connection stability of the device.

[0037] Example 3

[0038] The main structure of the embodiment of the utility model is the same as that of the embodiment 1, except that: the embodiment is further provided with an air inlet 2 and an air outlet 21 .

[0039] Specifically, refer to Figure 2 In this embodiment, the air inlet 2 and the air outlet 21 are arranged on the shielding box body 1, and a waveguide 22 is arranged in each of the air inlet 2 and the air outlet 21 to form a waveguide shielding ventilation window. The air inlet 2 and the air outlet 21 can form air circulation in the shielding box body 1, thereby taking away the heat generated by the DUT when being tested in the shielding box body 1, and the waveguide 22 can prevent the electromagnetic waves in the shielding box body 1 from leaking while allowing air to pass through. In addition, a fan 23 is arranged on the waveguide 22 of the air outlet 21, and the fan 23 can accelerate the air flow in the shielding box body 1, thereby increasing the temperature reduction speed in the shielding box body 1.

[0040] In this embodiment, the air inlet hole 2 is arranged at one end close to the fixed frame 3, and the air outlet hole 21 is arranged at one end close to the adjacent shielding box body 1, so as to improve the coverage area of the air flow between the air inlet hole 2 and the air outlet hole 21 in the shielding box body 1 as much as possible, thereby improving the heat dissipation effect in the shielding box body 1.

[0041] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A drawer - type shielding box, characterized in that: It includes a fixed frame (3), at least two groups of shielding box bodies (1), and moving plates (34) with the same number as the shielding box bodies (1); One end of the shielding box body (1) is provided with a feeding hole (33). The fixed frame (3) is arranged at the feeding end of the shielding box body (1), fixedly sleeved on the outer surface of each shielding box body (1), and integrating each group of shielding box bodies (1) into one body; The moving plate (34) passes through the feeding hole (33) and is slidably connected to the inner wall of the shielding box body (1). A test slot (35) for placing a test piece is arranged on the moving plate (34). One end of the moving plate (34) away from the shielding box body (1) is provided with a shielding cover (36) for covering the feeding hole (33).

2. The drawer - type shielding box according to claim 1, characterized in that: One side of the shielding cover (36) facing the shielding box body (1) is provided with a boss (32). Correspondingly, a sealing groove (31) with the same position and specification as the boss (32) is arranged on the fixed frame (3), and the boss (32) can be embedded into the sealing groove (31).

3. The drawer - type shielding box according to claim 1, characterized in that: A positioning device (4) is further provided; The positioning device (4) includes a knob, a rotating shaft (41), a buckle plate (42), and a cushion block (43); The knob is arranged on the outer surface of the shielding cover (36) on the side facing away from the shielding box body (1), and is rotatably connected to the shielding box body (1). The outer end of the rotating shaft (41) passes through the shielding box body (1) and is fixedly connected to the knob, and the inner end of the rotating shaft (41) is fixedly connected to the buckle plate (42). The cushion block (43) is arranged inside the shielding box body (1) and is fixedly connected to the inner wall of the shielding box body (1); When the shielding cover (36) is buckled with the fixed frame (3), the buckle plate (42) rotates under the action of the knob and the rotating shaft (41) and is clamped on the surface of the cushion block (43).

4. The drawer - type shielding box according to claim 1, characterized in that: The shielding box body (1) is provided with an air inlet hole (2) and an air outlet hole (21), and waveguides (22) are arranged in both the air inlet hole (2) and the air outlet hole (21).

5. The drawer - type shielding box according to claim 4, characterized in that: A blower (23) is covered and arranged on the waveguide (22) of the air outlet hole (21).

6. The drawer - type shielding box according to claim 4, characterized in that: The number of the shielding box bodies (1) is 2 groups; The air inlet hole (2) is arranged at one end close to the fixed frame (3), and the air outlet hole (21) is arranged at one end close to the adjacent shielding box body (1).

7. The drawer - type shielding box according to claim 1, characterized in that: Integral plates (11) are respectively arranged on the upper and lower surfaces of the shielding box body (1), and the integral plates (11) are fixedly connected to each group of shielding box bodies (1).

8. The drawer - type shielding box according to claim 1, characterized in that: On both sides of the fixed frame (3), holding flanges (12) are respectively arranged, and a holding handle (13) is connected to the holding flange (12).

9. The drawer-type shielding box according to claim 1, wherein A U-shaped handle is arranged on the surface of the shielding cover (36) on the side facing away from the shielding box body (1).

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