CN212970639U

CN212970639U - Shielding case structure of cell-phone PCB test

Info

Publication number: CN212970639U
Application number: CN202021535332.7U
Authority: CN
Inventors: 谢金成; 刘宏孝; 汪小玲
Original assignee: Shanghai Tecan Radio Frequency Technology Co ltd
Current assignee: Shanghai Tecan Radio Frequency Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-13
Anticipated expiration: 2030-07-29

Abstract

The utility model relates to a mobile phone shielding test technical field, concretely relates to shielding box structure for mobile phone PCB test, comprising an upper box body and a lower box body, wherein the lower box body is upwards connected with the upper box body after being upwards opened, the upper box body comprises a top plate, a panel, a back plate, a left side plate and a right side plate, a baffle plate is arranged in the upper box body, and the baffle plate divides the inner cavity of the upper box body into two same independent cavities; a cylinder bottom plate is arranged in any one of the independent cavities, the cylinder bottom plates are all connected with a guide rail bottom plate in a sliding mode, an object carrying plate is arranged on the upper surface of any one of the guide rail bottom plates, the object carrying plate on the guide rail bottom plate can enter and exit the independent cavity after sliding relative to the cylinder bottom plate, and any one of the object carrying plates is connected with a door plate; a loading plate inlet is formed in the panel of the upper box body corresponding to any one independent chamber, so that the loading plate can conveniently enter and exit the independent chamber. The utility model discloses a carry out the effect of two cell-phone PCB's shielding test simultaneously in same shielded cell, improved efficiency of software testing.

Description

Shielding case structure of cell-phone PCB test

Technical Field

The utility model relates to a mobile phone shielding test technical field, concretely relates to shielded cell structure of mobile phone PCB test.

Background

The electromagnetic shielding box is commonly used for shielding and testing devices such as mobile phones, tablets, computers, routers, intelligent household appliances, intelligent wearable electronic products and Internet of things equipment. A common structure of shielded cell for cell-phone PCB test includes the box and sets up objective table, antenna boom and all kinds of interface package in the box inner chamber, and the objective table passes through cylinder and guide rail drive back and is gone out inside and outside the shielded cell. Before testing, a product to be tested is placed on the objective table, and then the objective table is retracted into the inner cavity of the box body to perform receiving and transmitting testing of wireless signals.

The traditional structure of the shielding box for testing the mobile phone PCB is generally designed for a single object carrying table, namely, the shielding box can only support the shielding test of the single mobile phone PCB at the same time, and the testing efficiency is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shielded cell structure of cell-phone PCB test solves above technical problem.

The utility model provides a technical problem can adopt following technical scheme to realize:

a shielding box structure for testing a mobile phone PCB comprises an upper box body and a lower box body, wherein the lower box body is connected with the upper box body upwards after being opened upwards, the upper box body comprises a top plate, a panel, a back plate, a left side plate and a right side plate, a partition plate is arranged in the upper box body, and an inner cavity of the upper box body is divided into two same independent cavities by the partition plate;

a cylinder bottom plate is arranged in any one of the independent chambers, any cylinder bottom plate is connected with a guide rail bottom plate in a sliding mode, an object carrying plate is arranged on the upper surface of any guide rail bottom plate, the object carrying plate on the guide rail bottom plate can enter and exit the independent chamber after sliding relative to the cylinder bottom plate, and any object carrying plate is connected with a door plate;

and a loading plate inlet is formed on the panel of the upper box body corresponding to any one independent chamber, so that the loading plate can enter and exit the independent chamber conveniently.

The baffle, the panel, the backplate, the left side board and the right side board are of an integrally formed structure.

Sealing strips are arranged around the inlet of the object carrying plate, so that the corresponding door plate covers the inlet of the object carrying plate, and a sealing effect is achieved.

It is arbitrary the lower surface of guide rail bottom plate is equipped with the guide rail that two bilateral symmetry set up, the guide rail bottom plate is connected the upper surface of cylinder bottom plate is equipped with two the slider that the guide rail corresponds realizes the guide rail along the gliding effect of slider behind the mutual joint of slider that guide rail and correspond with it to make guide rail bottom plate and the year thing board above that also slide thereupon, realize carrying the effect of the independent cavity of the product business turn over that awaits measuring of thing board and placing above that, the slip direction of guide rail is the fore-and-aft direction.

The cylinder bottom plate is provided with a limiting block, so that the guide rail can be decelerated conveniently and the stop position of the guide rail can be determined conveniently, and the surface of one side, facing the guide rail, of the limiting block is an inclined surface;

the limiting blocks correspond to the guide rails one to one.

A support plate is arranged in a cavity of the lower box body, and any cylinder bottom plate is downwards fixedly connected with the support plate through a first support.

The carrying plate is fixedly connected with the corresponding guide rail bottom plate downwards through a second support column.

The upper surface of any cylinder bottom plate is provided with a jacking cylinder, the jacking cylinder is connected with a wiring board carrier which can be lifted up and down, the wiring board carrier is used for placing and fixing a wiring board, an interface circuit for testing is arranged on the wiring board, a mobile phone PCB is placed on a carrying plate and is retracted into an independent cavity, then the jacking cylinder is pressed downwards, after the wiring board carrier moves downwards, the wiring board on the wiring board carrier is close to the mobile phone PCB downwards and is finally connected with each circuit interface on the mobile phone PCB;

a flexible subassembly is connected to one side of wiring board carrier, the vertical setting of flexible subassembly is convenient for cooperate the jacking cylinder is realized the stable lift of wiring board carrier.

The telescopic assembly is characterized in that the telescopic assembly is a linear guide rail, the linear guide rail comprises a guide pillar, a linear bearing and a fixing frame, the lower end of the fixing frame is fixed on a cylinder bottom plate in an independent cavity where the fixing frame is located, the lower end of the guide pillar is fixed on the cylinder bottom plate in the independent cavity where the guide pillar is located, the upper end of the guide pillar is fixedly connected with the fixing frame, the linear bearing is sleeved on the guide pillar, and the linear bearing is fixedly connected with a wiring board carrier in the independent cavity where the linear bearing is located.

And any lug plate is connected with the wiring board carrier, the lug plate protrudes out of the rear side of the wiring board carrier, and a hole is formed in the lug plate, so that the lug plate is sleeved on the outer surface of the linear bearing conveniently through the hole and is fastened with the linear bearing.

Has the advantages that: due to the adoption of the technical scheme, the utility model discloses a carry out the effect of two cell-phone PCB's shielding test simultaneously in same shielded cell, improved efficiency of software testing.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the top plate removed;

FIG. 3 is a schematic view of the structure of FIG. 1 with the upper box removed;

FIG. 4 is a partial schematic view of FIG. 3;

fig. 5 is another partial structure diagram of fig. 3.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further explained with reference to the specific drawings. It is noted that the terms "first," "second," "third," "fourth," and the like (if any) in the description and in the claims of the present invention are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises" or "comprising," and any variations thereof, are intended to cover non-exclusive inclusions, such that a product or apparatus that comprises a list of elements or units is not necessarily limited to those elements or units expressly listed, but may include other elements or units not expressly listed or inherent to such product or apparatus.

Referring to fig. 1, 2 and 3, the shielding box structure for testing the mobile phone PCB comprises an upper box body and a lower box body 200, wherein the lower box body 200 is upwards connected with the upper box body after being upwards opened, the upper box body comprises a top plate 101, a face plate 102, a back plate 103, a left side plate 104 and a right side plate 105, a partition plate 106 is arranged in the upper box body, and the partition plate 106 divides an inner cavity of the upper box body into two same independent chambers; an air cylinder bottom plate 301 is arranged in any independent chamber, any air cylinder bottom plate 301 is connected with a guide rail bottom plate 302 in a sliding mode, an object carrying plate 303 is arranged on the upper surface of any guide rail bottom plate 302, the object carrying plate 303 on the guide rail bottom plate 302 can enter and exit the independent chamber after sliding relative to the air cylinder bottom plate 301, and any object carrying plate 303 is connected with a door plate 107;

a carrier plate access opening is provided in the top panel 102 of the upper housing corresponding to any of the individual chambers for allowing any carrier plate 303 to enter and exit its corresponding individual chamber.

In some preferred embodiments, the partition 106, the face plate 102, the back plate 103, the left side plate 104 and the right side plate 105 of the upper box body can be integrally formed, so that the structural strength of the upper box body can be effectively improved, and the risk of signal leakage generated after the side plates, the back plate and the face plate are spliced by welding or fasteners and the like is reduced.

It should be noted that the utility model discloses a lower part box 200 has the bottom plate, four curb plates all around, constitutes an upward opening's box structure behind the vertical connecting bottom plate of four curb plates, sets up louvre 201 and button trompil 202 on it, and button trompil 202 is used for installing the control button of all kinds of control box interior cylinder assembly, like jacking cylinder and push-and-pull cylinder. The upper case is connected to each other by a front panel 102 located in front, a rear panel 103 located in rear, a left side panel 104 located on left side, and a right side panel 105 located on right side to form a case structure having openings at both upper and lower sides, and the rear panel 103, the front panel 102, the left side panel 104, the right side panel 105, and the partition 106 may be formed as an integral structure, and the top panel 101 may be an independent installation structure as a box cover. Therefore, the left side plate and the right side plate are both provided with the lock catch structures 901, so that the top plate 101 can be conveniently locked when being covered on the opening above the upper box body. A group of handles 902 are symmetrically arranged on the upper surface of the top plate 101, so that the box body can be conveniently moved after being manually lifted. Another handle 903 may also be provided on the left side panel 104 or the right side panel 105.

The partition 106 may be configured as follows: the front end of the upper box body is vertically arranged in the inner cavity of the upper box body, the front end of the upper box body is connected with the front panel 102, the rear end of the upper box body is connected with the back panel 103, the front panel and the rear panel are parallel to the left side panel 104 or the right side panel 105, and at the moment, the left side panel 104 and the right side panel 105 are also parallel to each other.

In some preferred embodiments, a sealing strip is disposed around the entrance of any carrier plate 303, so that when the corresponding door panel covers the entrance of the carrier plate, a sealing effect is achieved.

The structure shown in fig. 3 is the structure schematic diagram of the utility model after the upper box is removed, which retains the panel subplate 1021 embedded in the panel, and the entrance of the object carrying plate is arranged on the panel subplate 1021. The advantage that sets up panel subplate 1021 lies in, can be with being used for on the panel embedding panel subplate 1021 the subplate trompil setting great, and the thing board entry of carrying the thing board business turn over of being convenient for on the panel subplate 1021 can then be according to actual demand, in the trompil size range of subplate trompil, sets up multiple size specification to make same shielded cell correspond the different sizes that carry the thing board or carry the product that awaits measuring on the thing board through the panel subplate of changing different specifications. It should be noted that in such embodiments, the door panel 107 also needs to be sized to correspond to the size of the carrier panel entrance in the panel sub-panel, such that the door panel can completely cover the carrier panel entrance.

In some embodiments, as shown in fig. 3 and 4, the lower surface of any one of the rail base plates 202 is provided with two bilaterally symmetrically arranged rails 3021, the upper surface of the cylinder base plate 301 connected to the rail base plate 302 is provided with a slider 3022 corresponding to the two rails 3021, the rail 3021 and the slider 3022 corresponding to the rail are clamped with each other to achieve the effect that the rail 3021 slides along the slider 3022, so that the rail base plate 302 and the object carrying plate 303 thereon also slide relative to the cylinder base plate 301, thereby achieving the effect that the object carrying plate 303 and the product to be tested placed thereon enter and exit from the independent chamber corresponding to the object carrying plate, and the sliding direction of the rail 3021 is the front-back direction, i.e., the direction from the panel to the back. In some preferred embodiments, the cylinder base plate 301 is provided with a stopper 3023 for providing a deceleration buffer of the guide rail 3021 and determining a stop position of the guide rail in the independent chamber, and a side surface of the stopper 3023 facing the guide rail 3021 is provided with an inclined surface; the limiting blocks 3023 correspond to the guide rails 3021 one to one.

In some embodiments, as shown in fig. 3 and 4, a support plate 304 is disposed in the chamber of the lower housing 200, and the bottom plate 301 of any cylinder is fixedly connected to the support plate 304 via a first support 401.

In some embodiments, the carrier plate 303 is fixedly connected to its corresponding rail base 302 by a second pillar 402. Every year thing board 303 sets up four second pillar 402 at least, carries four angles of thing board 303 and all is equipped with a second pillar 402 and connects guide rail bottom plate 302 downwards, except carrying the second pillar 402 at four angles of thing board 303 in the structure of drawing, still all connect two second pillar 402 downwards in the subtend both sides of carrying the middle section position of thing board 303, it forms stable support to carry the thing board to have six second pillars in total, this structure can correspond to carry the length of thing board 303 and provide better supporting effect longer.

Further, a cylinder connecting plate (not shown) for connecting a piston rod 5031 of the propulsion cylinder is provided between the door panel 107 and the carrier plate 303. The cylinder connecting plate is fixedly connected to the surface of the door panel 107 facing the separate chamber. Or, carry thing board 303 and also can connect door plant 107 through the cylinder connecting plate, that is to say, carry the thing board and connect the cylinder connecting plate earlier, realize carrying the thing inter-plate after the door plant is connected to the cylinder connecting plate and connect with the door plant, in this structure, the cylinder connecting plate both was used for connecting the propulsion cylinder, as the door plant again and carries the connecting piece of thing board. Or the air cylinder connecting plate can be fixedly connected to the lower surface of the guide rail bottom plate and positioned between the door plate and the guide rail, and then the door plate is fixedly connected with the air cylinder connecting plate, so that a sequential connecting structure among the door plate, the air cylinder connecting plate, the guide rail bottom plate and the carrying plate is formed, and indirect connection from the door plate to the carrying plate is also formed.

In some embodiments, as shown in fig. 3 and 4, a jacking cylinder 501 is disposed on an upper surface of any cylinder base plate 301, the jacking cylinder 501 is connected to a wiring board carrier 305 that ascends and descends, the wiring board carrier 305 is used for placing and fixing a wiring board (not shown in the figures), an interface circuit for testing is disposed on the wiring board, a mobile phone PCB serving as a product to be tested is placed on the carrying board 303 and is retracted into a corresponding independent chamber, then the jacking cylinder 501 presses downward (the initial position of the jacking cylinder is a top dead center), after the wiring board carrier 305 moves downward, a wiring board on the wiring board carrier approaches the mobile phone PCB downward, and finally is connected to each circuit interface on the mobile phone PCB, in order to ensure the connection effect, the wiring board carrier needs to be fixed on the wiring board carrier, and therefore, a fixing knob 3051 is disposed on the; telescopic component 502 is connected to one side of wiring board carrier 305, and telescopic component 502 is vertical to be set up, is convenient for cooperate jacking cylinder 501 to realize the stable lift of wiring board carrier 305.

It should be noted that the retractable assembly 502 is not generally disposed on the same side as the jacking cylinder 501, and as shown in the figure, the retractable assembly 502 is disposed on the rear side (the side facing the back plate) of the same patch panel carrier 305, while the lifting cylinder 501 corresponding to the patch panel carrier is disposed on the left side or the right side of the patch panel carrier, for example, in the figure, the lifting cylinder of the patch panel carrier in the independent chamber on the left side is disposed on the left side and connected to the left side, and the lifting cylinder of the patch panel carrier in the independent chamber on the right side is disposed on the right side and connected to the right side. Alternatively, when the telescopic assembly 502 and the jacking cylinder 501 are located on the same side, another telescopic assembly is also needed to be arranged on different sides to control the balance of the patch panel carrier during lifting.

In some embodiments, as shown in fig. 5, the telescopic assembly employs a linear guide, the linear guide includes a guide pillar 5021, a linear bearing 5022 and a fixing bracket 5023, the lower end of the fixing bracket 5023 is fixed on the cylinder bottom plate 301 in the independent chamber where the fixing bracket 5023 is located, the lower end of the guide pillar 5021 is fixed on the cylinder bottom plate 5021 in the independent chamber where the guide pillar 5021 is located, the upper end of the guide pillar 5021 is fixedly connected with the fixing bracket 5023, the linear bearing 5022 is sleeved on the guide pillar 5021 and moves up and down along the guide pillar, and the linear bearing 5022 is fixedly connected with the terminal plate carrier 305 in the. In some preferred embodiments, any patch panel carrier 305 is connected to an ear plate 3052, the ear plate 3052 protrudes from the rear side of the patch panel carrier 305, and the ear plate 3052 is provided with a hole for allowing the ear plate 3052 to be sleeved on and fastened to the outer surface of the linear bearing 5022 through the hole, so that when the linear bearing reciprocates up and down along the guide post, the patch panel carrier 305 also reciprocates up and down synchronously. In actual operation, the lifting cylinder is controlled to ascend or descend, so that the ascending or descending wiring board carrier 305 drives the linear bearing to ascend or descend along the guide pillar.

To sum up, the utility model discloses can support two cell-phone PCBs to shield the test simultaneously, effectively promote efficiency of software testing.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A shielding box structure for testing a mobile phone PCB comprises an upper box body and a lower box body, wherein the lower box body is connected with the upper box body after being opened upwards, and comprises a top plate, a panel, a back plate, a left side plate and a right side plate;

2. The shielding box structure for testing the PCB of the mobile phone as claimed in claim 1, wherein the partition board, the panel, the back board, the left side board and the right side board are integrally formed.

3. The shielding box structure for testing the PCB of the mobile phone according to claim 1, wherein a sealing strip is arranged around the entrance of any one of the loading plates.

4. The shielding box structure of claim 1, wherein two guide rails are symmetrically arranged on the lower surface of the guide rail bottom plate, the upper surface of the cylinder bottom plate connected with the guide rail bottom plate is provided with slide blocks corresponding to the two guide rails, the guide rails are clamped with the slide blocks corresponding to the guide rails, and the sliding direction of the guide rails is the front-back direction.

5. The shielding box structure for the PCB test of the mobile phone according to claim 4, wherein a limiting block is arranged on the cylinder bottom plate, and the surface of one side of the limiting block, which faces the guide rail, is an inclined surface;

the limiting blocks correspond to the guide rails one to one.

6. The shielding box structure of claim 1, wherein a supporting plate is disposed in the cavity of the lower box, and any one of the cylinder bottom plates is fixed to the supporting plate via a first pillar.

7. The shielding box structure for testing the PCB of the mobile phone according to claim 1, wherein the carrier plate is fixedly connected with the corresponding guide rail bottom plate downwards through a second pillar.

8. The shielding box structure for testing the PCB of the mobile phone as claimed in any one of claims 1 to 7, wherein a jacking cylinder is arranged on the upper surface of any one of the cylinder bottom plates, and the jacking cylinder is connected with a wiring board carrier which can be lifted up and down;

one side of the wiring board carrier is connected with a telescopic assembly, and the telescopic assembly is vertically arranged.

9. The shielding box structure of claim 8, wherein the telescopic assembly is a linear guide rail, the linear guide rail comprises a guide post, a linear bearing and a fixing frame, the lower end of the fixing frame is fixed on the cylinder bottom plate in the independent chamber where the fixing frame is located, the lower end of the guide post is fixed on the cylinder bottom plate in the independent chamber where the guide post is located, the upper end of the guide post is fixedly connected with the fixing frame, the linear bearing is sleeved on the guide post, and the linear bearing is fixedly connected with the wiring board carrier in the independent chamber where the linear bearing is located.

10. The shielding box structure of claim 9, wherein any one of the terminal block carriers is connected to an ear plate, the ear plate protrudes toward the rear side of the terminal block carrier, the ear plate is provided with an opening, and the ear plate is sleeved on the outer surface of the linear bearing through the opening.