CN111556645A

CN111556645A - PCB board

Info

Publication number: CN111556645A
Application number: CN202010334700.XA
Authority: CN
Inventors: 张波; 余小海
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-08-18

Abstract

The invention belongs to the technical field of electronic components, and particularly relates to a PCB (printed circuit board), which comprises a board body; the locking device comprises a plate body, a locking plate, a sliding rod, a clamping block and a clamping groove, wherein the two sides of the plate body are connected with mounting plates, the bottom of the plate body is provided with a base, the top end of the base is provided with a slot, the side wall of the slot on one side of the plate body is provided with the locking groove, the locking groove is internally connected with the locking rod in a threaded manner, the end part of the locking rod is rotatably connected with the locking plate, the top end of the locking plate is connected with the sliding rod, one side of; according to the invention, the mounting plates are arranged on the two sides of the plate body of the PCB, and the base capable of being movably mounted is arranged at the bottom end of the plate body, so that the plate body can be stably fixed on the base, and meanwhile, the plate body can be rapidly dismounted from the base and maintained, thereby greatly improving the stability and convenience of the PCB in use.

Description

PCB board

Technical Field

The invention belongs to the technical field of electronic components, and particularly relates to a PCB.

Background

The PCB is an important electronic component, which is also called a printed circuit board, and is a support for electronic components, which is a carrier for electrical connection of electronic components, and is called a printed circuit board because it is manufactured by electronic printing. Its development has been over 100 years old; the design of the method is mainly layout design; the circuit board has the main advantages that wiring and assembly errors are greatly reduced, and the automation level and the production labor rate are improved; the circuit board can be divided into a single-sided board, a double-sided board, a four-layer board, a six-layer board and other multi-layer circuit boards according to the number of the layers of the circuit board.

For the better fixed PCB circuit board, some slot-in type PCB circuit boards have appeared on the market, but this kind of slot-in type PCB circuit board often can not be stable fix the PCB circuit board, also has the inconvenient problem of dismantling after fixed completion of PCB circuit board simultaneously for the maintenance of PCB circuit board is changed and is become complicated and difficult, thereby influences the operating quality and the life of PCB board.

In view of this, the invention provides a PCB, which is characterized in that mounting plates are arranged on two sides of a board body of the PCB, and a base capable of being movably mounted on the bottom end of the board body is arranged at the bottom end of the board body, so that the board body can be stably fixed on the base, and the board body can be rapidly detached and maintained from the base, thereby greatly improving the stability and convenience of the PCB in use.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the PCB, the mounting plates are arranged on the two sides of the plate body of the PCB, and the base capable of being movably mounted on the bottom end of the plate body is arranged at the bottom end of the plate body, so that the plate body can be stably fixed on the base, and meanwhile, the plate body can be rapidly detached and maintained from the base, and the stability and convenience of the PCB in use are greatly improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a PCB board comprises a board body; the outer edges of two sides of the plate body are symmetrically connected with a strip-shaped mounting plate, the bottom of the plate body is provided with a base for mounting the plate body, the top end of the base is provided with a slot which can be matched with the bottom of the plate body, the side wall of the slot corresponding to the mounting plate on one side of the plate body is provided with a locking groove, the inside of the locking groove is in threaded connection with a locking rod, the inner end of the locking rod is arranged in a polished rod form and extends into the slot, the end part of the locking rod is rotatably connected with a locking plate, the locking rod on the outer side of the locking plate is fixedly connected with a pressing plate, the side surface of the top end of the locking plate is connected with a sliding rod, one side of the sliding rod is provided with a sliding block, the sliding block is attached to the side surface of the sliding block along the width direction of the, a triangular clamping block is arranged at one end, away from the sliding rod, of the sliding block, a clamping groove matched with the clamping block is formed in the side face of the bottom end of the mounting plate, and springs are symmetrically connected between the sliding block and the side face of the clamping groove; a limiting block is arranged on the side wall of the slot corresponding to the mounting plate on the other side of the plate body, and a first inclined surface is arranged at the top end of the side surface of the limiting block close to the mounting plate; during work, some slot-in type PCB circuit boards appear on the market for better fixing the PCB circuit board, but the slot-in type PCB circuit board often cannot stably fix the PCB circuit board, and meanwhile, the problem that the PCB circuit board is inconvenient to disassemble after the fixing is finished also exists, so that the maintenance and the replacement of the PCB circuit board become complicated and difficult, and the working quality and the service life of the PCB board are influenced; when the PCB is assembled and used, the bottom end of the board body is aligned with the slot on the base, then the bottom end of the board body is pushed into the slot, at the moment, the inclined surface on the limiting block can guide the end part of the mounting board which is attached to the surface of the inclined surface, so that the motion track and the position of the board body can be adjusted in the process of inserting the slot, the bottom end of the mounting board at the other end of the board body can be contacted and extruded with the side surface of the clamping block, at the moment, the inclined side surface of the clamping block can drive the sliding groove on the sliding block to move towards one side of the sliding rod and extrude the spring under the action of the bottom end of the mounting board, when the mounting board moves to align the clamping block and the clamping groove, at the moment, the clamping block which is mutually clamped is ejected into the clamping groove under the action of the spring and can limit, meanwhile, the side surface of the slot, which is attached to the side surface of the plate body, can limit the displacement of the plate body along the width direction of the plate body; then, the locking rod is screwed to enable the locking rod to be screwed into the slot and simultaneously drive the pressing plate to apply acting force to the locking plate, so that the locking plate drives the sliding rod to press the sliding block at the sliding groove under the action of the locking rod and the pressing plate, the sliding block can apply pressure to the mounting plate on one side and limit the plate body at the mounting plate to displace along the length direction of the plate body, the plate body can be stably fixed in the slot, and the stability of the PCB during working is effectively improved; simultaneously when the plate body need be dismantled and change, twist it no longer to carry on spacingly to the plate body through following slot inside with the lock lever inner this moment to can convenient and fast take out the plate body from slot inside, and then convenience and practicality when having improved the PCB board greatly and using.

Preferably, the bottom surface of the clamping block is a horizontal limiting surface, and the size and the shape of the clamping groove are the same as those of the clamping block; the during operation, though the fixture block can insert inside the draw-in groove and mutually block with it, the fixture block bottom still exists from the inside roll-off of draw-in groove and the risk that breaks away from, thereby influence the smooth and effectual installation of plate body, this moment through set the bottom surface of fixture block to the spacing face of horizontally, and set the draw-in groove size and shape the same with the fixture block, make the inside spacing face of draw-in groove can carry out more stable and abundant effect with the draw-in groove bottom surface, reduce because of spacing face slope or draw-in groove notch and the inconsistent accident that leads to fixture block and draw-in groove of draw-in groove, thereby make draw-in groove and fixture block can continuously stable cooperation and fix the plate body, stability and validity when the assembly of PCB board have been strengthened greatly.

Preferably, the side face of the sliding block at the top end of the clamping block is arranged to be an attaching face parallel to the side face of the mounting plate, and one end, close to the mounting plate, of the top end of the sliding block is provided with a second inclined face; the during operation, binding face that parallels is set to through the slider side with the fixture block top to side of the mounting panel, make behind the mutual block of fixture block and draw-in groove, binding face on the slider can fully contact the laminating with the mounting panel side of draw-in groove notch outer end, the action area of slider to the mounting panel has been improved greatly, thereby the spacing effect of slider to the plate body has been improved, simultaneously through setting No. two inclined planes to the one end that is close to the mounting panel with the slider top, make No. two inclined planes that set up can play the guide effect to the motion of male mounting panel bottom department, thereby make the motion that the plate body can be fast and stable to the slot bottom and assemble, and then the convenience when having improved the assembly effect and the assembly of PCB board.

Preferably, the free end of the sliding rod is arranged obliquely upwards, and the sliding groove corresponds to the sliding rod in shape; during operation, though the mounting panel bottom can make the slider slide through applying the effort to the inclined plane of fixture block, but the vertical component force that exists between horizontally slide bar and the spout side has increaseed the frictional force between spout and the slide bar, thereby influence the slider and carry out more easily and effectual slip, through setting up slide bar and spout slope this moment, the frictional force that can effectual reduction slide bar and spout receive when relative slip, thereby make the slider can be more easily stable under the effect of mounting panel move, and then make things convenient for the assembly and the dismantlement of PCB board.

Preferably, a gap of 2-4mm is formed between the plate body and the side face corresponding to the slot along the length direction of the plate body, guide plates attached to the side face of the mounting plate are symmetrically arranged in the gap, and the guide plates are connected with the side wall of the slot through connecting rods; during operation, through setting up the clearance between the lateral wall of plate body and slot, and carry out the deflector of laminating through setting up and mounting panel side for the deflector can carry on spacingly and fixed to the plate body of mounting panel department, thereby damage and the work inefficacy that effectual reduction slot lateral wall and plate body surface direct contact extrusion lead to, the radiating effect of PCB board also can be strengthened to the clearance that sets up simultaneously, thereby the effectual operating quality and the life who improves the PCB board.

Preferably, the top ends of the guide plates are provided with inclined guide surfaces, and the opening widths of the top ends of the two symmetrical guide surfaces are larger than the width of the slot opening of the slot; the during operation, because the mounting panel of two deflectors of symmetry and plate body both sides sets up for the laminating, make installer need carry on the deflector opening on plate body and the slot accurate alignment can make its smooth insert to the slot inside, thereby the assembly efficiency of very big influence PCB board, this moment through setting up the spigot surface of slope on the deflector top, and through setting up the opening width on two spigot surface tops of symmetry, make things convenient for the plate body can be quick when the assembly insert to the opening department on two spigot surface tops, make it move to slot notch department and align with it through the slip on the spigot surface afterwards, thereby make things convenient for the PCB board to carry out quick assembly, the effectual assembly efficiency who improves the PCB board.

The invention has the following beneficial effects:

1. according to the invention, the mounting plates are arranged on the two sides of the plate body of the PCB, and the base capable of being movably mounted is arranged at the bottom end of the plate body, so that the plate body can be stably fixed on the base, and meanwhile, the plate body can be rapidly dismounted from the base and maintained, thereby greatly improving the stability and convenience of the PCB in use.

2. According to the invention, the bottom surface of the clamping block is set to be the horizontal limiting surface, and the size and the shape of the clamping groove are set to be the same as those of the clamping block, so that the limiting surface in the clamping groove and the bottom surface of the clamping groove can perform more stable and sufficient action, the accidental separation of the clamping block from the inside of the clamping groove is reduced, and the stability and the effectiveness of the PCB during assembly are greatly enhanced.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a perspective view of the base of the present invention;

FIG. 6 is an enlarged view at C in FIG. 5;

FIG. 7 is a perspective view of the slider of the present invention;

in the figure: the plate body 1, the mounting plate 11, the clamping groove 12, the base 2, the slot 21, the locking groove 22, the locking rod 23, the locking plate 24, the pressing plate 25, the sliding rod 26, the spring 27, the limiting block 28, the first inclined surface 29, the sliding block 3, the sliding groove 31, the clamping block 32, the limiting surface 33, the adhering surface 34, the second inclined surface 35, the gap 4, the guide plate 41, the connecting rod 42 and the guide surface 43.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.

As shown in fig. 1 to 7, a PCB according to the present invention includes a board body 1; the outer edges of two sides of the plate body 1 are symmetrically connected with a long strip-shaped mounting plate 11, the bottom of the plate body 1 is provided with a base 2 for mounting the plate body 1, the top end of the base 2 is provided with a slot 21 matched with the bottom of the plate body 1, the side wall of the slot 21 corresponding to the mounting plate 11 on one side of the plate body 1 is provided with a locking groove 22, the inside of the locking groove 22 is in threaded connection with a locking rod 23, the inner end of the locking rod 23 is arranged in a polished rod form and extends into the slot 21, the end part of the locking rod 23 is rotatably connected with a locking plate 24, the locking rod 23 on the outer side of the locking plate 24 is fixedly connected with a pressing plate 25, the side surface of the top end of the locking plate 24 is connected with a sliding rod 26, one side of the sliding rod 26 is provided with a sliding block 3, two side surfaces of the sliding block 3 in the width, the end part of the sliding rod 26 is positioned in the sliding groove 31 and can freely slide in the sliding groove, a triangular clamping block 32 is arranged at one end of the sliding block 3 away from the sliding rod 26, a clamping groove 12 matched with the clamping block 32 is arranged on the side surface of the bottom end of the mounting plate 11, and springs 27 are symmetrically connected between the sliding block 3 and the side surface of the slot 21; a limiting block 28 is arranged on the side wall of the slot 21 corresponding to the mounting plate 11 on the other side of the plate body 1, and a first inclined surface 29 is arranged at the top end of the side surface of the limiting block 28 close to the mounting plate 11; during work, in order to better fix the PCB, some slot 21 type PCB boards appear on the market, but the slot 21 type PCB boards cannot stably fix the PCB boards, and meanwhile, the problem that the PCB boards are inconvenient to detach after the fixing is finished also exists, so that the maintenance and the replacement of the PCB boards become complicated and difficult, and the working quality and the service life of the PCB boards are influenced; when the PCB is assembled and used, the bottom end of the plate body 1 is aligned with the slot 21 on the base 2, then the bottom end of the plate body 1 is pushed into the slot 21, at the moment, the inclined surface 29 on the limiting block 28 can guide the end part of the mounting plate 11 which is attached to the surface of the inclined surface, so that the movement track and the position of the plate body 1 can be adjusted in the process of inserting the plate body 1 into the slot 21, the bottom end of the mounting plate 11 at the other end of the plate body 1 can be in contact with and extruded by the side surface of the clamping block 32, at the moment, the inclined side surface of the clamping block 32 can drive the sliding groove 31 on the sliding block 3 to move towards one side of the sliding rod 26 and extrude the spring 27 under the action of the bottom end of the mounting plate 11, when the clamping block 32 moves to be aligned with the clamping groove 12, at the moment, the clamping block 32 is ejected into the clamping groove 12 under the action of the rebound force of the spring 27 Meanwhile, the side surface of the slot 21 attached to the side surface of the plate body 1 can limit the displacement of the plate body 1 along the width direction; then, the locking rod 23 is screwed to enable the locking rod 23 to be screwed into the slot 21 and simultaneously drive the pressing plate 25 to apply acting force to the locking plate 24, so that the locking plate 24 drives the sliding rod 26 to press the sliding block 3 at the sliding groove 31 under the action of the locking rod 23 and the pressing plate 25, the sliding block 3 can apply pressure to the mounting plate 11 on one side and limit the displacement of the plate body 1 at the mounting plate 11 along the length direction of the plate body, the plate body 1 can be stably fixed in the slot 21, and the stability of the PCB during working is effectively improved; when the plate body 1 needs to be disassembled and replaced, the inner end of the locking rod 23 is screwed out from the inside of the slot 21 to prevent the locking rod from limiting the plate body 1, so that the plate body 1 can be conveniently and quickly taken out from the inside of the slot 21, and convenience and practicability of the PCB during use are greatly improved.

As an embodiment of the present invention, the bottom surface of the latch 32 is set as a horizontal limiting surface 33, and the size and shape of the slot 12 are the same as those of the latch 32; during operation, although fixture block 32 can insert inside and mutually block with it to draw-in groove 12, fixture block 32 bottom still exists from the inside roll-off of draw-in groove 12 and the risk that breaks away from, thereby influence the smooth and effectual installation of plate body 1, the spacing face 33 of horizontally is set to through the bottom surface with fixture block 32 this moment, and set into with draw-in groove 12 size and shape the same with fixture block 32, make the inside spacing face 33 of draw-in groove 12 can carry out more stable and abundant effect with draw-in groove 12 bottom surface, reduce because of spacing face 33 slope or draw-in groove 12 notch and fixture block 32 inconsistent result in the unexpected of fixture block 32 with draw-in groove 12 breaking away from, thereby make draw-in groove 12 and fixture block 32 can last stable cooperation and fix plate body 1, the stability and the validity of PCB board when the equipment have been strengthened greatly.

As an embodiment of the present invention, the side surface of the slider 3 at the top end of the latch 32 is provided with an abutting surface 34 parallel to the side surface of the mounting plate 11, and one end of the top end of the slider 3 close to the mounting plate 11 is provided with a second inclined surface 35; the during operation, binding face 34 that parallels with mounting panel 11 side is set to through 3 sides of slider with fixture block 32 top, make behind fixture block 32 and the mutual block of draw-in groove 12, binding face 34 on the slider 3 can fully contact the laminating with the mounting panel 11 side of the 12 notch outer ends of draw-in groove, 3 to mounting panel 11's active area of slider has been improved greatly, thereby slider 3 to plate body 1's spacing effect has been improved, simultaneously through being close to mounting panel 11's one end with 3 tops of slider No. two inclined planes 35 are set to, make No. two inclined planes 35 that set up can play the guide effect to the motion of 11 bottom departments of male mounting panel, thereby make plate body 1 can quick stable motion to slot 21 bottom and assemble, and then the convenience when having improved the assembly effect and the assembly of PCB board.

As an embodiment of the present invention, the free end of the sliding rod 26 is disposed obliquely upward, and the sliding groove 31 corresponds to the shape of the sliding rod 26; during operation, though installation panel 11 bottom can make slider 3 slide through applying the effort to the inclined plane of fixture block 32, but the vertical component force that exists between horizontally slide bar 26 and the spout 31 side has increaseed the frictional force between spout 31 and the slide bar 26, thereby influence slider 3 and carry out more easily and effectual slip, set up through slide bar 26 and spout 31 slope this moment, can effectual reduction slide bar 26 and the spout 31 frictional force that receives when relative slip, thereby make slider 3 can be more easily stable carry out the motion under the effect of installation panel 11, and then make things convenient for the assembly and the dismantlement of PCB board.

As an embodiment of the invention, a gap 4 of 2-4mm is arranged between the plate body 1 and the corresponding side surface of the slot 21 along the length direction, guide plates 41 attached to the side surfaces of the mounting plate 11 are symmetrically arranged in the gap 4, and the guide plates 41 are connected with the side walls of the slot 21 by connecting rods 42; during operation, through setting up clearance 4 between the lateral wall at plate body 1 and slot 21, and through setting up the deflector 41 that carries out the laminating with mounting panel 11 side, make deflector 41 can carry on spacingly and fixed to the plate body 1 of mounting panel 11 department, thereby effectual reduction slot 21 lateral wall and the damage and the work inefficacy that plate body 1 surface direct contact extrusion leads to, the radiating effect of PCB board also can be strengthened to clearance 4 that sets up simultaneously, thereby effectual operating mass with the life who improves the PCB board.

As an embodiment of the present invention, the top end of each guide plate 41 is provided with an inclined guide surface 43, and the opening width of the top end of each guide surface 43 is larger than the notch width of the slot 21; the during operation, because the mounting panel 11 of two deflectors of symmetry 41 and plate body 1 both sides sets up for the laminating, make the installer need carry out accurate alignment with the deflector 41 opening on plate body 1 and slot 21 and just can make its smooth insert to slot 21 inside, thereby the assembly efficiency of very big influence PCB board, this moment through setting up the spigot surface 43 of slope on deflector 41 top, and through setting up the mouth-opening width on two spigot surface 43 tops of symmetry, make things convenient for plate body 1 can be quick when the assembly insert to the mouth-opening department on two spigot surface 43 tops, make it move to slot 21 mouth department and align with it through the slip on spigot surface 43 afterwards, thereby make things convenient for the PCB board to carry out quick assembly, the effectual assembly efficiency who improves the PCB board.

When the plate body assembling device works, firstly, the bottom end of the plate body 1 is aligned with the slot 21 on the base 2, then, the bottom end of the plate body 1 is pushed into the slot 21, at the moment, the inclined surface 29 on the limiting block 28 can play a role of guiding the end part of the mounting plate 11 which is attached to the surface of the inclined surface, so that the plate body 1 can adjust the motion track and position of the plate body 1 in the process of being inserted into the slot 21, the bottom end of the mounting plate 11 at the other end of the plate body 1 can be contacted and extruded with the side surface of the clamping block 32, at the moment, the inclined side surface of the clamping block 32 can drive the sliding groove 31 on the sliding block 3 to move towards one side of the sliding rod 26 and extrude the spring 27 under the action of the bottom end of the mounting plate 11, when the mounting plate 11 moves to the clamping block 32 is aligned with the clamping groove 12, at the clamping block 32 is ejected into the clamping groove 12 under, meanwhile, the side surface of the slot 21 attached to the side surface of the plate body 1 can limit the displacement of the plate body 1 along the width direction; then, the locking rod 23 is screwed to enable the locking rod 23 to be screwed into the slot 21 and simultaneously drive the pressing plate 25 to apply acting force to the locking plate 24, so that the locking plate 24 drives the sliding rod 26 to press the sliding block 3 at the sliding groove 31 under the action of the locking rod 23 and the pressing plate 25, the sliding block 3 can apply pressure to the mounting plate 11 on one side and limit the displacement of the plate body 1 at the mounting plate 11 along the length direction of the plate body, the plate body 1 can be stably fixed in the slot 21, and the stability of the PCB during working is effectively improved; when the plate body 1 needs to be disassembled and replaced, the inner end of the locking rod 23 is screwed out from the inside of the slot 21 to prevent the locking rod from limiting the plate body 1, so that the plate body 1 can be conveniently and quickly taken out from the inside of the slot 21, and convenience and practicability of the PCB during use are greatly improved.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A PCB board comprises a board body (1); the method is characterized in that: the outer edges of two sides of the plate body (1) are symmetrically connected with a long-strip-shaped mounting plate (11), the bottom of the plate body (1) is provided with a base (2) for mounting the plate body (1), the top end of the base (2) is provided with a slot (21) which can be matched with the bottom of the plate body (1), the side wall of the slot (21) corresponding to the mounting plate (11) on one side of the plate body (1) is provided with a locking groove (22), the inside of the locking groove (22) is in threaded connection with a locking rod (23), the inner end of the locking rod (23) is arranged in a polished rod form and extends into the slot (21), the end part of the locking rod (23) is rotatably connected with a locking plate (24), the locking rod (23) on the outer side of the locking plate (24) is fixedly connected with a pressing plate (25), the side surface of the top end of the locking plate (24) is connected, the sliding block (3) is attached to the side face of the slot (21) along the two side faces in the width direction, a sliding groove (31) matched with the sliding block (3) is formed in the side face, corresponding to the sliding rod (26), of the sliding block (3), the end portion of the sliding rod (26) is located in the sliding groove (31) and can freely slide in the sliding groove, a triangular clamping block (32) is arranged at one end, away from the sliding rod (26), of the sliding block (3), a clamping groove (12) matched with the clamping block (32) is formed in the side face of the bottom end of the mounting plate (11), and springs (27) are symmetrically connected between the sliding block (3) and the side face; the mounting plate is characterized in that a limiting block (28) is arranged on the side wall of the slot (21) corresponding to the mounting plate (11) on the other side of the plate body (1), and a first inclined surface (29) is arranged at the top end, close to the mounting plate (11), of the side surface of the limiting block (28).

2. A PCB board according to claim 1, wherein: the bottom surface of the clamping block (32) is provided with a horizontal limiting surface (33), and the size and the shape of the clamping groove (12) are the same as those of the clamping block (32).

3. A PCB board according to claim 2, wherein: the side face of the sliding block (3) at the top end of the clamping block (32) is arranged to be an attaching face (34) parallel to the side face of the mounting plate (11), and a second inclined face (35) is arranged at one end, close to the mounting plate (11), of the top end of the sliding block (3).

4. A PCB board according to claim 1, wherein: the free end of the sliding rod (26) is arranged obliquely upwards, and the sliding groove (31) corresponds to the shape of the sliding rod (26).

5. A PCB board according to claim 1, wherein: the utility model discloses a plate body, including plate body (1) and slot (21), be provided with 2-4 mm's clearance (4) between the side that its length direction corresponds, the symmetry is equipped with deflector (41) of laminating mutually with mounting panel (11) side in clearance (4), link to each other with connecting rod (42) between deflector (41) and slot (21) lateral wall.

6. A PCB board according to claim 5, wherein: the top ends of the guide plates (41) are respectively provided with an inclined guide surface (43), and the opening width of the top ends of the two symmetrical guide surfaces (43) is larger than the width of the opening of the slot (21).