WO2017005028A1

WO2017005028A1 - Transistor-pushing device

Info

Publication number: WO2017005028A1
Application number: PCT/CN2016/079318
Authority: WO
Inventors: 魏伟伟; 杨卫卫; 梁志刚; 王峰; 石一逴; 张晓毅; 郭耀斌
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-07-08
Filing date: 2016-04-14
Publication date: 2017-01-12
Also published as: CN205021038U

Abstract

A transistor-pushing device, comprising a body portion (10) installed on a printing circuit board (40); a transistor-pushing portion (20), provided on the body portion and extending away from the body portion; and an inclined surface (21) provided on the transistor-pushing portion; wherein, the inclined surface is provided opposite to a side wall of an input side of a power transistor slot (41) on the printed circuit board such that in the transistor-pushing portion, when the inclined surface and the side wall of the input side are fit together, the power transistor in the power transistor slot is pushed to an output side of the power transistor slot. The transistor-pushing device solves the problem in the prior art in which it is difficult to control the position of a power transistor in a power transistor groove of a printed circuit board.

Description

Push tube device

Technical field

The present invention relates to the field of communication equipment production testing, and in particular to a pipe pushing device.

Background technique

At present, with the development of communication technology, the functions of communication devices are increasingly powerful, the size of devices is getting smaller and smaller, and the performance indexes and heat dissipation requirements of high-power module units of communication devices are getting higher and higher.

In order to improve the performance index and heat dissipation performance of the high-power power amplifier module unit, the final power tube production patch generally adopts the method of PCB slotting to solder the power tube to the copper substrate, and is subject to PCB slotting tolerance and power supply tolerance of different manufacturers. The influence causes the inconsistency of the position of the power tube in the slot after welding, affects the consistency of the performance indicators of the high-power power amplifier module, and causes the yield of the mass production to fluctuate.

The position of the power tube in the slot after welding is inconsistent, mainly as the power tube is located close to the input side or the output side. From the performance point of view, the position of the power tube after welding in the groove should be as uniform as possible and close to the output side.

At present, there are mainly manual push or push pin methods: the manual push pipe is to manually push the power tube to the output side before loading the pressure tool; push the pin to insert the power tube into the power tube slot, and push the power tube to the output. side.

However, the manual push operation is easy to miss due to individual differences, and the consistency is not good. Pushing the pin method requires avoiding the hole due to the metal base. During the installation of the whole machine, the silicone grease will come up and affect the characteristics of the microstrip line.

Summary of the invention

The main object of the present invention is to provide a pipe pushing device to solve the problem in the prior art that it is difficult to control the position of the power tube in the power tube slot of the printed circuit board.

In order to achieve the above object, the present invention provides a pipe pushing device comprising: a body portion mounted on a printed circuit board; a push tube portion, the push tube portion is disposed on the body portion, and the push tube portion faces away from the body portion Extending in a direction, the push tube portion is provided with an inclined surface; wherein the inclined surface is opposite to the side wall of the input side of the power tube slot on the printed circuit board, so that the push tube portion is on the inclined side and the input side side wall When fitting, push the power tube in the power tube slot to the output side of the power tube slot.

In an embodiment of the invention, the push tube portion is disposed at a first end of the body portion, and the inclined surface is disposed at a side of the push tube portion adjacent the second end of the body portion.

In an embodiment of the invention, the inclined surface extends in a direction away from the body portion and extends away from the second end of the body portion.

In an embodiment of the invention, the push tube portion includes a tip block with an inclined surface disposed on the tip block.

In an embodiment of the invention, the tip block is a right angle block and the first right angle side of the cross section of the right angle block is parallel to the end face of the body portion.

In an embodiment of the invention, the length of the first right angle side is equal to the difference between the maximum width value of the power tube slot and the minimum width value of the power tube.

In an embodiment of the invention, the push tube portion further includes a support block, the support block being coupled to the body portion, and the tip block being disposed at an end of the support block remote from the body portion.

In an embodiment of the invention, the main body portion is provided with a support positioning post, and the support positioning post extends in the same direction as the push tube portion.

In an embodiment of the invention, the support positioning post is a stepped post, the small diameter end of the stepped post is inserted into the positioning hole of the printed circuit board, and the stepped surface of the stepped post is supported on the end surface of the printed circuit board.

In an embodiment of the invention, a retaining hole is provided in the body portion.

In an embodiment of the invention, the body portion is a U-shaped plate, the opening of the U-shaped plate facing away from the side of the push tube portion.

The pipe pushing device of the present invention includes a body portion and a push tube portion. Since the push tube portion is disposed on the body portion and the inclined portion is provided on the push tube portion, the body portion is mounted on the printed circuit board to push the tube The inclined surface of the portion is opposite to the inner side wall of the input side of the power tube slot of the printed circuit board. When the power tube in the power tube slot needs to be pushed, the end of the body portion close to the push tube portion is pressed to make the push tube portion Moving down so that the inclined surface is attached to the inner side of the input side of the power tube slot makes it easier to push the power tube.

The push tube device of the invention has the advantages of simple structure and convenient operation, and can conveniently push the power tube in the slot of the power tube, thereby solving the difficulty in controlling the position of the power tube in the slot of the power tube of the printed circuit board in the prior art. problem.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

Figure 1 is a schematic view showing the structure of an embodiment of a pipe pushing device according to the present invention;

Figure 2 shows a partial cross-sectional view of the push tube device of Figure 1;

Figure 3 shows a plan view of the push tube device of Figure 1;

Figure 4 shows a side view of the push tube device of Figure 3;

Figure 5 is a partial schematic view of the push tube device of Figure 3 including a support positioning post;

Figure 6 is a block diagram showing the structure of the push tube device of Figure 1 mounted on a printed circuit board.

Wherein, the above figures include the following reference numerals:

10, the body portion; 11, the position hole; 20, the push tube portion; 21, the inclined surface; 22, the tip block; 23, the support block; 30, the support positioning column; 40, the printed circuit board; 41, the power tube slot .

detailed description

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

The embodiment provides a push tube device. Referring to FIG. 1 to FIG. 6 , the push tube device includes: a body portion 10 mounted on the printed circuit board 40; the push tube portion 20 and the push tube portion 20 are disposed. On the body portion 10, and the push tube portion 20 extends away from the body portion 10, the push tube portion 20 is provided with an inclined surface 21; wherein the inclined surface 21 and the power tube slot 41 on the printed circuit board 40 are input. The side walls of the side are opposed to each other such that the push tube portion 20 pushes the power tube in the power tube slot 41 to the output side of the power tube slot 41 when the inclined surface 21 is in contact with the side wall on the input side.

The pipe pushing device in this embodiment includes a body portion 10 and a push tube portion 20. Since the push tube portion 20 is disposed on the body portion 10, and the push tube portion 20 is provided with an inclined surface 21, the body portion 10 is mounted on the body portion 10 On the printed circuit board 40, the inclined surface 21 of the push tube portion 20 is opposed to the inner side wall of the input side of the power tube slot 41 of the printed circuit board 40, and when the power tube in the power tube slot 41 needs to be pushed, the pressing is performed. The end of the main body portion 10 near the push tube portion 20 moves the push tube portion 20 downward so that the inclined surface 21 is attached to the inner side surface of the input side of the power tube slot 41, so that the power tube can be pushed more conveniently.

The push tube device in this embodiment has a simple structure and convenient operation, and can conveniently push the power tube in the power tube slot 41, which solves the difficulty in controlling the power tube in the power tube slot of the printed circuit board in the prior art. Location problem.

In the present application, the input side of the power tube slot 41 is the side of the push tube portion 20 that extends into the power tube slot 41, and the output side of the power tube slot 41 is away from the side of the power tube slot 41. .

In the present embodiment, the push tube portion 20 is provided at the first end of the body portion 10, and the inclined surface 21 is provided on the side of the push tube portion 20 near the second end of the body portion 10.

In this embodiment, by providing the push tube portion 20 at the first end of the body portion 10, the inclined surface 21 is disposed on a side of the push tube portion 20 near the second end of the body portion 10, when the push tube device is installed, The inclined surface 21 is relatively conveniently opposed to the inner side wall of the input side of the power tube slot 41. When the power tube needs to be pushed, only the first end of the body portion 10 needs to be pressed downward, so that the inclined surface 21 can be The inner side wall of the input side of the power tube slot 41 is gradually fitted, and the power tube is gradually pushed down the output side of the power tube slot 41.

In the present embodiment, the inclined surface 21 gradually extends in a direction away from the second end of the body portion 10 in a direction away from the body portion 10.

In this embodiment, by gradually moving the inclined surface 21 away from the second end of the body portion 10 in a direction away from the body portion 10, the inclined surface 21 and the inner side wall of the input side of the power tube slot 41 can be gradually fitted.

In the present embodiment, the push tube portion 20 includes a tip end block 22 on which the inclined surface 21 is disposed.

In the present embodiment, by providing the tip block 22, the setting of the inclined surface 21 can be realized relatively conveniently.

Preferably, as shown in FIG. 4, the tip block 22 is a right angle block, and the first right angle side of the cross section of the right angle block is parallel to the end surface of the body portion 10.

In the present embodiment, as shown in FIG. 4, the cross-section of the right-angled block is a triangle, and the right-angled side of the triangle is an edge forming a right angle of the triangle.

In the present embodiment, by providing the tip block 22 as a right-angled block and using the inclined surface of the right-angled block as an inclined surface, the setting of the tip block 22 can be completed relatively conveniently. In the present embodiment, a plane in which the right-angled blocks form a right angle is connected to the body portion 10.

Preferably, the length of the first right angle side is equal to the difference between the maximum width value of the power tube slot 41 and the minimum width value of the power tube.

In the present embodiment, the first right-angled side is on a plane forming a right angle of the right-angled block, and the first right-angled side is a side of a right angle of a triangle on a horizontal street surface on the triangular block.

In the present embodiment, as shown in FIG. 4, the push tube portion 20 further includes a support block 23 to which the support block 23 is coupled, and the tip end block 22 is disposed at one end of the support block 23 away from the body portion 10.

In this embodiment, the support block 23 is provided, and the tip block 22 can be connected to the body portion 10 relatively conveniently.

In the present embodiment, as shown in FIG. 3 to FIG. 5, the main body portion 10 is provided with a supporting positioning post 30, and the extending direction of the supporting positioning post 30 is the same as the extending direction of the push tube portion 20.

In this embodiment, the main body portion 10 can be supported on the printed circuit board 40 more conveniently by providing the support positioning post 30.

In this embodiment, the support positioning post 30 is a stepped post. The small diameter end of the stepped post is inserted into the positioning hole of the printed circuit board 40, and the stepped surface of the stepped post is supported on the end surface of the printed circuit board 40.

In this embodiment, by providing the support positioning post 30 as a stepped column, on the one hand, the support positioning post 30 can be conveniently inserted on the printed circuit board 40, thereby supporting the body portion 10; on the other hand, the support can be positioned. The post 30 is supported on the printed circuit board 40, thereby flowing out of the space at the first end of the body portion 10.

In the present embodiment, the body portion 10 is provided with a yielding hole 11. By providing the retaining holes 11 in the main body portion 10, it is possible to more conveniently avoid the components on the printed circuit board 40, thereby preventing the main body portion 10 from interfering with components, and also avoiding other structural components.

In the present embodiment, the body portion 10 is a U-shaped plate, and the opening of the U-shaped plate faces the side away from the push tube portion 20.

By providing the body portion 10 in a U shape, it is possible to hold the side wall of the U-shaped plate when lifting the pipe pushing device, which is convenient and easy to operate.

The invention relates to the field of production testing of communication equipment, in particular to the prevention and control of inconsistent indicators caused by slotting tolerances in the production test section of the RF slotted welding power tube of the communication electronic product. The invention is derived from the production of the patch of the RF power amplifier single board, but can be extended to the field of similar device production and patching, especially for improving the consistency of the production of the patch and the index of the RF slotted soldering device.

The object of the present invention is to design a push-tube welding device (pushing device) for improving the consistency of the RF power amplifier index, and to solve the problem that the high-power module patch production is affected by the PCB slotting tolerance and the power tube feed tolerance of different manufacturers. The consistency of batch performance indicators; make up for the defects of poor manual pipe operation and the impetus of the installation of silicone grease in the pin machine. The device is simple in structure, easy to use, and fully compatible with existing pressure tooling, ensuring consistent power amplifier welding. Sexuality improves the consistency of module indicators and improves the yield and competitiveness of power distribution.

The invention provides a push tube welding device for improving the consistency of an RF power amplifier index. As shown in FIG. 1 , the structural composition includes a connecting body, a supporting positioning column, an escape hole and a push tube card.

The invention has simple design and is easy to implement, and the principle is as follows:

Before the patch production and installation of the pressure tool, firstly, the main body portion 10 is held by hand to insert the support positioning post 30 into the PCB board screw hole, and secondly, the push tube portion 20 is inserted into the input side groove of the power tube slot 41, and the push tube portion is pushed. The tip end of 20 is a beveled surface whose thickness gradually increases in a direction away from the body portion 10 for compatibility with different tolerances, and the power tube is squeezed to the output side by means of the push tube portion 20; then, the pressure tooling is installed, and the escape hole is The pressure spring of the pressure tool is reserved; finally, the furnace is welded, and the power tube is close to the output side after welding.

The invention provides a push tube welding device for improving the consistency of the RF power amplifier index. As shown in FIG. 1 to FIG. 6 , the structural composition includes a body portion 10 , a support positioning column 30 , a positioning hole 11 and a push tube. Department 20.

As shown in FIG. 6 , the push tube device according to the present invention is installed in a screw hole of a PCB board (printed circuit board) and a power tube slot, and can be designed according to a PCB slot position, a screw hole position, and a pressure. Tooling structure, adjust the position, size and height of the push tube, support positioning column, body and avoidance holes, fully compatible with the pressure tooling, reducing the cost of modification.

The working process of the invention in the production of patch:

(1) insert the support positioning post into the screw hole of the PCB board;

(2) forcefully push the push tube card into the input side of the power tube slot, and push the power tube to the output side of the power tube slot by means of the push tube portion;

(3) Install the pressure tooling, the relief hole is reserved for the pressure spring on the pressure tooling;

(4) Over-flow reflow soldering. After cooling, remove the pressure tool and push tube device and reuse.

The yield consistency of the production after the application of the pipe pushing device is improved significantly.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

By adopting the push tube device of the invention, the problem that the index of the RF slotted welding power tube is inconsistent due to the slotting tolerance in the production test section can be effectively solved, and the consistency of the manual push tube operation is not overcome and the pin machine assembly is promoted. The shortcomings of silicone grease overflow, and fully compatible with existing positioning fixtures, only need to make a push tube device, and the cost is low.

The push tube device of the invention has flexible design, and can adjust the condition of the PCB according to different types of communication electronic equipment positioning fixtures and modules, and has versatility.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

According to the above technical solution provided by the embodiment of the invention, the push tube device has the advantages of simple structure and convenient operation, and can conveniently push the power tube in the slot of the power tube, thereby solving the difficulty in controlling the power tube on the printed circuit board in the prior art. The problem of the position inside the power tube slot.

Claims

A push tube device comprising:

a body portion (10), the body portion (10) is mounted on a printed circuit board (40);

a push tube portion (20), the push tube portion (20) is disposed on the body portion (10), and the push tube portion (20) extends in a direction away from the body portion (10), The push tube portion (20) is provided with an inclined surface (21);

Wherein the inclined surface (21) is disposed opposite to the side wall of the input side of the power tube slot (41) on the printed circuit board (40) such that the push tube portion (20) is at the tilt When the surface (21) is in contact with the side wall of the input side, the power tube in the power tube slot (41) is pushed to the output side of the power tube slot (41).
The pipe pushing device according to claim 1, wherein the push tube portion (20) is provided at a first end of the body portion (10), and the inclined surface (21) is provided at the push tube portion ( 20) is adjacent to one side of the second end of the body portion (10).
The pipe pushing device according to claim 2, wherein the inclined surface (21) gradually extends in a direction away from the second end of the body portion (10) in a direction away from the body portion (10).
The pipe pushing device according to claim 1, wherein the push tube portion (20) includes a tip block (22), and the inclined surface (21) is provided on the tip block (22).
The pipe pushing device according to claim 4, wherein the tip block (22) is a right angle block, and a first right angle side of a cross section of the right angle block is parallel to an end surface of the body portion (10).
The pipe pushing device of claim 5, wherein the length of the first right angle side is equal to a difference between a maximum width value of the power tube slot (31) and a minimum width value of the power tube.
The pipe pushing device according to claim 4, wherein the push tube portion (20) further comprises a support block (23), the support block (23) is coupled to the body portion (10), and the tip end A block (22) is disposed at an end of the support block (23) remote from the body portion (10).
The pipe pushing device according to claim 1, wherein the body portion (10) is provided with a supporting positioning post (30), an extending direction of the supporting positioning post (30) and the push tube portion (20) The direction of extension is the same.
The pipe pushing device according to claim 8, wherein the support positioning post (30) is a stepped column, a small diameter end of the stepped post is inserted into a positioning hole of the printed circuit board (40), and the step is The step faces of the posts are supported on the end faces of the printed circuit board (40).
The pipe pushing device according to claim 1, wherein the body portion (10) is provided with a retaining hole (11).
The pipe pushing device according to claim 1, wherein the body portion (10) is a U-shaped plate, and an opening of the U-shaped plate faces a side away from the push tube portion (20).