CN216291587U

CN216291587U - Circuit board of alternating current-to-direct current module

Info

Publication number: CN216291587U
Application number: CN202122936912.8U
Authority: CN
Inventors: 谭曾明
Original assignee: Shenzhen Vox Electric Co ltd
Current assignee: Shenzhen Vox Electric Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-04-12
Anticipated expiration: 2031-11-27

Abstract

The utility model discloses a circuit board of an alternating current-direct current module, which comprises a mounting seat and a circuit board, wherein a rectifier module and a filter capacitor are installed on the circuit board, the bottom of the circuit board is uniformly and fixedly connected with four insertion rods, the outer walls of the insertion rods are provided with locking holes in a penetrating manner, the tops of the mounting seat and the corresponding positions of the insertion rods are provided with insertion holes in a penetrating manner, the inner wall of the mounting seat is rotatably connected with a bidirectional screw rod, and the outer wall of the bidirectional screw rod is symmetrically and threadedly connected with two movable strips; when the circuit board dismounting device is used, the knob is rotated to drive the two movable strips to drive the locking blocks to be inserted into the corresponding locking holes, so that the circuit board is fixedly mounted, when the circuit board is dismounted, the knob is rotated reversely, the locking blocks are separated from the locking holes, the operation is simple and convenient, the locking device does not need to be in contact with the surface of the circuit board in the dismounting process, and the electronic elements on the surface of the circuit board can be effectively prevented from being damaged.

Description

Circuit board of alternating current-to-direct current module

Technical Field

The utility model relates to a circuit board, in particular to a circuit board of an alternating current-to-direct current module.

Background

The process of converting alternating current into direct current is called rectification, the direct current is not really direct current after rectification but pulsating direct current, and in order to obtain a smoother direct current waveform, a capacitor with a larger capacity is required to be added, and the capacitor is called a filter capacitor. There are three ways for a rectifier circuit: half-wave rectification, full-wave rectification, and bridge rectification.

The circuit board is also called a circuit board and a PCB board, and the circuit board is miniaturized and visualized and plays an important role in batch production of fixed circuits and optimization of electric appliance layout.

At present, most of circuit boards used for the alternating current-direct current conversion module are fixed in a module shell through screws, the circuit boards are troublesome to install and disassemble, the circuit boards are operated on the surfaces of the circuit boards when the screws are rotated, once the screw drivers slip in the rotating process, the electronic elements on the circuit boards are easily hit by the deviated screw drivers, and the damage of the electronic elements is easily caused and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a circuit board of an ac-to-dc module, so as to solve the problems mentioned in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a circuit board of alternating current-to-direct current module, includes mount pad and circuit board, install rectifier module and filter capacitance on the circuit board, four inserted bars of the even fixedly connected with in bottom of circuit board, the outer wall of inserted bar runs through and is provided with the locking hole, the top of mount pad all runs through with the department that corresponds of inserted bar and is provided with the jack, the inner wall of mount pad rotates and is connected with two-way screw rod, two-way screw rod's outer wall symmetry threaded connection has two movable strips, the outer wall of movable strip and the department fixedly connected with locking block that corresponds of jack, be provided with actuating mechanism on the mount pad, actuating mechanism is connected with two-way screw rod transmission.

As a further scheme of the utility model: the driving mechanism comprises a driving shaft penetrating through the outer wall of the mounting seat, one end, located in the mounting seat, of the driving shaft is fixedly connected with a second bevel gear, one end, located outside the mounting seat, of the driving shaft is fixedly connected with a knob, the outer wall of the bidirectional screw is fixedly connected with a first bevel gear, and the first bevel gear is meshed with the second bevel gear.

As a further scheme of the utility model: the cross section of the locking block is in an isosceles trapezoid shape, and the size of the locking hole is matched with that of the locking block.

As a further scheme of the utility model: the top of mount pad is run through and is provided with a plurality of ejector pins, ejector pin and mount pad sliding connection, the spacing piece of bottom fixedly connected with of ejector pin, the bottom fixedly connected with spring of spacing piece, the bottom of spring and the inner wall fixed connection of mount pad, the top fixedly connected with insulating rubber piece of ejector pin.

As a still further scheme of the utility model: the outer wall of each movable strip is symmetrically provided with two guide rods in a penetrating mode, two ends of each guide rod are fixedly connected with the inner wall of the mounting seat, and the movable strips are connected with the guide rods in a sliding mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the circuit board dismounting device is used, the knob is rotated to drive the two movable strips to drive the locking blocks to be inserted into the corresponding locking holes, so that the circuit board is fixedly mounted, when the circuit board is dismounted, the knob is rotated reversely, the locking blocks are separated from the locking holes, the operation is simple and convenient, the locking device does not need to be in contact with the surface of the circuit board in the dismounting process, and the electronic elements on the surface of the circuit board can be effectively prevented from being damaged.

2. According to the utility model, through the arrangement of the ejector rod and the spring, when the circuit board is fixed on the mounting seat, the spring can push the ejector rod to enable the insulating rubber sheet to be attached to the bottom surface of the circuit board, and when the locking block moves out of the locking hole, the circuit board can drive the insertion rod to move upwards under the action of the spring, so that the circuit board is convenient to take down, and the insulating rubber sheet can play a certain role in shock absorption and buffering.

Drawings

Fig. 1 is a schematic structural diagram of a circuit board of an ac-dc conversion module.

Fig. 2 is a schematic diagram of an internal structure of a mounting base in a circuit board of an ac-dc module.

Fig. 3 is an enlarged view of a point a in fig. 1.

The device comprises a mounting base 1, a jack 2, a fixing lug 3, a bidirectional screw 4, a movable strip 5, a locking block 6, a first bevel gear 7, a driving shaft 8, a knob 9, a second bevel gear 10, a guide rod 11, a circuit board 12, an inserting rod 13, a top rod 14, a limiting piece 15, a spring 16 and an insulating rubber piece 17.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 3, in the embodiment of the utility model, a circuit board of an ac-to-dc module includes a mounting base 1 and a circuit board 12, the outer wall of the mounting base 1 is fixedly connected with a plurality of fixing lugs 3, a rectification module and a filter capacitor are mounted on the circuit board 12, the bottom of the circuit board 12 is uniformly and fixedly connected with four insertion rods 13, the outer wall of each insertion rod 13 is provided with a locking hole in a penetrating manner, the top of the mounting base 1 and the corresponding position of the insertion rod 13 are both provided with insertion holes 2 in a penetrating manner, the inner wall of the mounting base 1 is rotatably connected with a bidirectional screw 4, the outer wall of the bidirectional screw 4 is symmetrically and threadedly connected with two movable strips 5, the outer wall of each movable strip 5 and the corresponding position of the insertion holes 2 are fixedly connected with a locking block 6, the mounting base 1 is provided with a driving mechanism, and the driving mechanism is in transmission connection with the bidirectional screw 4.

The driving mechanism comprises a driving shaft 8 penetrating through the outer wall of the mounting seat 1, one end, located in the mounting seat 1, of the driving shaft 8 is fixedly connected with a second bevel gear 10, one end, located outside the mounting seat 1, of the driving shaft 8 is fixedly connected with a knob 9, the outer wall of the bidirectional screw rod 4 is fixedly connected with a first bevel gear 7, and the first bevel gear 7 is meshed with the second bevel gear 10.

The drive shaft 8 is rotated through the knob 9, namely the first bevel gear 7 and the second bevel gear 10 are engaged with each other to drive the bidirectional screw rod 4 to rotate, and then the bidirectional screw rod 4 is connected with the movable strips 5 through threads to drive the two movable strips 5 to drive the corresponding locking blocks 6 to move reversely.

The cross section of the locking block 6 is isosceles trapezoid, and the size of the locking hole is matched with that of the locking block 6.

In the process that the locking block 6 in the shape of an isosceles trapezoid is inserted into the corresponding locking hole, the inclined planes on the two sides of the locking block can be matched with the inclined planes in the locking hole, and a guiding effect is achieved, so that the insertion rod 13 can be better locked in the mounting base 1.

The top of mount pad 1 runs through and is provided with a plurality of ejector pins 14, ejector pin 14 and mount pad 1 sliding connection, the spacing piece 15 of bottom fixedly connected with of ejector pin 14, the bottom fixedly connected with spring 16 of spacing piece 15, the bottom of spring 16 and the inner wall fixed connection of mount pad 1, the top fixedly connected with insulating rubber piece 17 of ejector pin 14.

Through the setting of ejector pin 14 and spring 16, when circuit board 12 was fixed on mount pad 1, spring 16 can promote ejector pin 14, made insulating rubber piece 17 and the laminating of the bottom surface of circuit board 12, when locking block 6 shifted out the locking hole, circuit board 12 can drive inserted bar 13 rebound under spring 16's effect to be convenient for take off circuit board 12, and insulating rubber piece 17 can play certain shock attenuation cushioning effect.

The outer wall of each movable strip 5 is symmetrically provided with two guide rods 11 in a penetrating mode, two ends of each guide rod 11 are fixedly connected with the inner wall of the mounting seat 1, and the movable strips 5 are connected with the guide rods 11 in a sliding mode.

Through the sliding fit of the guide rod 11 and the movable strip 5, the stability of the movement of the movable strip 5 in the mounting seat 1 can be improved.

The working principle of the utility model is as follows:

in the utility model, when the circuit board 12 is installed, the installation base 1 is fixed in the shell of the AC-DC module by matching the screws with the fixing lugs 3, then the four insertion rods 13 at the bottom of the circuit board 12 are inserted into the installation base 1 through the corresponding insertion holes 2, then the drive shaft 8 is rotated through the knob 9, the mutual engagement of the first bevel gear 7 and the second bevel gear 10 can drive the bidirectional screw 4 to rotate, and then the threaded connection of the bidirectional screw 4 and the movable strips 5 drives the two movable strips 5 to drive the locking blocks 6 to be inserted into the corresponding locking holes, so as to realize the fixed installation of the circuit board 12, when the circuit board 12 is disassembled, the knob 9 is rotated reversely to separate the locking block 6 from the locking hole, the operation is simple and convenient, and the surface of the circuit board 12 does not need to be contacted in the dismounting process, so that the electronic elements on the surface of the circuit board 12 can be effectively prevented from being damaged.

According to the utility model, through the arrangement of the ejector rod 14 and the spring 16, when the circuit board 12 is fixed on the mounting seat 1, the spring 16 can push the ejector rod 14 to enable the insulating rubber sheet 17 to be attached to the bottom surface of the circuit board 12, when the locking block 6 moves out of the locking hole, the circuit board 12 can drive the inserting rod 13 to move upwards under the action of the spring 16, so that the circuit board 12 can be conveniently taken down, and the insulating rubber sheet 17 can play a certain role in shock absorption and buffering.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a circuit board of exchange commentaries on classics direct current module which characterized in that: including mount pad (1) and circuit board (12), install rectifier module and filter capacitor on circuit board (12), four inserted bars (13) of the even fixedly connected with in bottom of circuit board (12), the outer wall of inserted bar (13) runs through and is provided with the locking hole, the top of mount pad (1) all runs through with the department of corresponding of inserted bar (13) and is provided with jack (2), the inner wall of mount pad (1) rotates and is connected with two-way screw rod (4), the outer wall symmetry threaded connection of two-way screw rod (4) has two movable strip (5), the outer wall of movable strip (5) and the department of corresponding fixedly connected with locking block (6) of jack (2), be provided with actuating mechanism on mount pad (1), actuating mechanism is connected with two-way screw rod (4) transmission.

2. The circuit board of claim 1, wherein: the driving mechanism comprises a driving shaft (8) penetrating through the outer wall of the mounting seat (1), one end of the driving shaft (8) located in the mounting seat (1) is fixedly connected with a second bevel gear (10), one end of the driving shaft (8) located outside the mounting seat (1) is fixedly connected with a knob (9), the outer wall of the bidirectional screw (4) is fixedly connected with a first bevel gear (7), and the first bevel gear (7) and the second bevel gear (10) are meshed with each other.

3. The circuit board of claim 1, wherein: the cross section of the locking block (6) is isosceles trapezoid, and the size of the locking hole is matched with that of the locking block (6).

4. The circuit board of claim 1, wherein: the top of mount pad (1) is run through and is provided with a plurality of ejector pins (14), ejector pin (14) and mount pad (1) sliding connection, the spacing piece of bottom fixedly connected with (15) of ejector pin (14), the bottom fixedly connected with spring (16) of spacing piece (15), the bottom of spring (16) and the inner wall fixed connection of mount pad (1), the top fixedly connected with insulating rubber piece (17) of ejector pin (14).

5. The circuit board of claim 1, wherein: every the outer wall of activity strip (5) all the symmetry is run through and is provided with two guide arms (11), the both ends of guide arm (11) all with the inner wall fixed connection of mount pad (1), activity strip (5) and guide arm (11) sliding connection.