CN211018623U

CN211018623U - DC-DC switching power supply module packaging structure

Info

Publication number: CN211018623U
Application number: CN201922339059.4U
Authority: CN
Inventors: 杨刚刚; 马小宁
Original assignee: Xi'an Yuxi Hongyang Electromechanical Co ltd
Current assignee: Xi'an Yuxi Hongyang Electromechanical Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-14
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a DC-DC switching power supply module packaging structure, including circuit board and packaging shell, the packaging shell is open-top's box structure, the circuit board set up in the packaging shell, just the circuit board top is provided with right the packaging shell open-top carries out the confined apron. Has the advantages that: the utility model discloses a correspond on packaging shell and set up a plurality ofly and the sealed piece of pin position complex elasticity, run through sealed piece and stretch out the packaging shell through the pin to seal in order to meet the department with the packaging shell through pushing down sealed piece, can realize the supporting role of packaging shell to the pin through sealed piece simultaneously, increase the stability of pin structure, the practicality is strong.

Description

DC-DC switching power supply module packaging structure

Technical Field

The utility model relates to a power structure field, concretely relates to DC-DC switching power supply module packaging structure.

Background

With the development of electronic technology, various electronic devices are emerging continuously, and the requirements of corresponding equipment on power supply are different, in order to meet the requirements of various electronic devices, a voltage conversion device is generally required to be arranged at a power supply position, a DC-DC switching power supply module is a commonly used power supply module, the packaging forms of the DC-DC power supply modules used in the market at present are many, and the switching power supply module is sealed through a packaging structure to ensure the normal use of a circuit board in the switching power supply module.

The applicant finds that at least the following technical problems exist in the prior art: the DC-DC switching power supply module packaging structure used in the market at present mainly seals an equipment structure through a shell, a through hole is formed in the position of a pin so that the pin structure can stretch out, the sealing performance of the structure at the joint of the pin and the packaging structure is poor, the packaging structure cannot directly support the pin, the pin is easily stressed and bent in the power supply module installation process, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a DC-DC switching power supply module packaging structure just lies in solving above-mentioned problem, corresponds on the packaging shell and sets up a plurality ofly and the sealed piece of pin position complex elasticity, runs through sealed piece through the pin and stretches out the packaging shell to meet the department to the pin and packaging shell and seal, realize the supporting role of packaging shell to the pin simultaneously, increase pin structural stability, the practicality is strong, sees the explanation below in detail.

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

the utility model provides a DC-DC switching power supply module packaging structure, including circuit board and packaging shell, the packaging shell is open-topped box-shaped structure, the circuit board sets up in the packaging shell, and be provided with above the circuit board to the packaging shell open-topped cover plate go on seal;

a plurality of groups of vertically arranged pins are arranged at the bottom of the circuit board, the pins penetrate through the packaging shell and extend to the lower part of the packaging shell, a positioning cylinder is arranged at the joint of the outer side of the pins and the circuit board, the positioning cylinder is in interference fit with the pins, an adjusting disc is in threaded fit with the outer side of the positioning cylinder, and a spring is sleeved on the outer side of the positioning cylinder below the adjusting disc;

the bottom of the inner side of the packaging shell corresponds to multiple groups of the pins and is provided with a plurality of pressure-bearing cylinders, the bottom ends of the pressure-bearing cylinders vertically penetrate through accommodating holes in the packaging shell, the pins penetrate through the accommodating holes and are in clearance fit with the accommodating holes, the inner side of the top end of each pressure-bearing cylinder is provided with an inverted round platform-shaped sealing block, the pins penetrate through the sealing blocks, and the top ends of the sealing blocks are tightly abutted to the bottom ends of the springs.

When the packaging structure of the DC-DC switching power supply module is adopted, the circuit board is placed in the packaging shell when in use, the circuit board supports the pins to penetrate through the sealing block, thereby the bottom end of the spring is pressed against the top end of the sealing block, the pin penetrates through the packaging shell and extends to the bottom of the packaging shell, the spring is pressed downwards by the adjusting disc, thereby the sealing block is pressed by the spring to be pressed into the accommodating hole, the pins and the side wall of the containing hole are sealed by the sealing blocks, an operator can seal the pins and the side wall of the containing hole according to the length of the sealing blocks extending into the containing hole, the position height of the adjusting disc is changed by adjusting the position of the adjusting disc on the positioning cylinder, therefore, the sealing blocks which are short in length and extend into the accommodating holes are finely adjusted, and the pins at corresponding positions of the sealing blocks are sealed.

Preferably, the top end of the sealing block is provided with a limiting block, the limiting block and the sealing block are made of rubber materials and are integrally formed, and the bottom end of the spring is sleeved on the outer side of the limiting block.

Preferably, the four corners of the circuit board are provided with mounting frames, each mounting frame is an L-shaped structure, each mounting frame comprises vertical rods and horizontal rods which are perpendicular to each other, and the vertical rods are fixed on the outer side of the circuit board.

Preferably, four mounting cylinders are arranged at the bottom of the inner side of the packaging shell corresponding to the four groups of mounting frames, the top ends of the mounting cylinders are abutted against the center of the cross rod, and the mounting cylinders are connected with the cross rod through screws.

Preferably, the installation section of thick bamboo outside the encapsulation shell is inside to be provided with the deflector, the equal vertical screw hole that is provided with in both sides center around the deflector, just the deflector is close to the vertical guide way that is provided with in mounting bracket one side, the horizontal pole is kept away from montant one end stretches into in the guide way, just the horizontal pole with guide way clearance fit.

Preferably, the bottom of the cover plate is provided with a rubber pad, the bottom surface of the rubber pad is abutted against the top of the circuit board, four groups of counter bores are arranged at four corners of the cover plate corresponding to the threaded holes, and the cover plate is connected with the guide plate through screws through the counter bores.

Has the advantages that: the utility model discloses a correspond on packaging shell and set up a plurality ofly and the sealed piece of pin position complex elasticity, run through sealed piece and stretch out the packaging shell through the pin to seal in order to meet the department with the packaging shell through pushing down sealed piece, can realize the supporting role of packaging shell to the pin through sealed piece simultaneously, increase the stability of pin structure, the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of the internal structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a top view of the guide plate of the present invention;

fig. 4 is a front view structural diagram of the present invention.

The reference numerals are explained below:

1. a circuit board; 101. a pin; 102. a positioning cylinder; 102a, an adjusting disk; 103. a spring; 104. a mounting frame; 2. packaging the shell; 201. a pressure-bearing cylinder; 202. a sealing block; 202a and a limiting block; 203. mounting the cylinder; 204. a guide plate; 204a, a threaded hole; 204b, a guide groove; 205. a housing hole; 3. a cover plate; 301. a rubber pad; 302. and (4) countersinking.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a DC-DC switching power supply module packaging structure, including circuit board 1 and packaging shell 2, packaging shell 2 is open-top's box-shaped structure, and circuit board 1 sets up in packaging shell 2, and is provided with above circuit board 1 and carries out confined apron 3 to packaging shell 2 open-top.

The bottom of the circuit board 1 is provided with a plurality of groups of vertically arranged pins 101, the pins 101 penetrate through the packaging shell 2 and extend to the lower part of the packaging shell 2, the joint of the outer side of the pins 101 and the circuit board 1 is provided with a positioning cylinder 102, the positioning cylinder 102 is in interference fit with the pins 101, the positioning cylinder 102 is welded and fixed with the circuit board 1, the outer side of the positioning cylinder 102 is in threaded fit with an adjusting disc 102a, and the outer side of the positioning cylinder 102 below the adjusting disc 102a is sleeved with a spring 103. A plurality of pressure-bearing cylinders 201 are arranged at the bottom of the inner side of the packaging shell 2 corresponding to the plurality of groups of pins 101, accommodating holes 205 vertically penetrate through the packaging shell 2 at the bottom ends of the pressure-bearing cylinders 201, the pins 101 penetrate through the accommodating holes 205 and are in clearance fit with the accommodating holes 205, inverted truncated cone-shaped sealing blocks 202 are arranged at the inner side of the top ends of the pressure-bearing cylinders 201, the pins 101 penetrate through the sealing blocks 202, and the top end of the sealing block 202 is pressed against the bottom end of the spring 103, after the circuit board 1 is installed in the packaging shell 2, the spring 103 is pressed down through the adjusting disk 102a, thereby pressing the sealing block 202 into the containing hole 205 at the bottom end of the pressure-bearing cylinder 201 through the spring 103, realizing the sealing at the joint of the pin 101 and the packaging shell 2, by adjusting the position of the adjustment disc 102a on the positioning cylinder 102, to change the pressing force of the adjustment disc 102a against the spring 103, thereby adjusting the downward pressure of sealing blocks 202 and ensuring that a plurality of sealing blocks 202 seal the position where pin 101 penetrates out of package 2.

As an optional implementation manner, a limiting block 202a is arranged at the top end of the sealing block 202, the limiting block 202a and the sealing block 202 are made of rubber materials and are integrally formed, the bottom end of the spring 103 is sleeved outside the limiting block 202a, four corners of the circuit board 1 are all provided with a mounting frame 104, the mounting frame 104 is of an L-shaped structure, the mounting frame 104 comprises vertical bars and horizontal bars which are perpendicular to each other, the vertical bars are fixed outside the circuit board 1, four mounting cylinders 203 are arranged at the bottom of the inner side of the packaging casing 2 corresponding to the four mounting frames 104, the top ends of the mounting cylinders 203 are abutted against the center of the horizontal bars, the mounting cylinders 203 are connected with the horizontal bars through screws, so as to fix the circuit board 1 and the packaging casing 2, a guide plate 204 is arranged inside the packaging casing 2 outside the mounting cylinders 203, threaded holes 204a are vertically formed in the centers of the front and back sides of the guide plate 204, guide plates 204 are vertically provided with guide grooves 204b near the mounting frame 104, one end of the horizontal bar far from the vertical bar extends into the guide groove 204b, so as to guide the process of placing the circuit board 1 into the packaging casing 2 through the guide groove 204b, so as to improve the convenience of installation, and the gap fit between the horizontal bars and the guide groove 204b, a rubber pad 301 is arranged at the bottom.

By adopting the structure, when in use, the circuit board 1 is placed in the packaging shell 2, the circuit board 1 supports the pins 101 to penetrate through the sealing block 202, so that the bottom end of the spring 103 is abutted against the top end of the sealing block 202, at the moment, the pins 101 penetrate through the packaging shell 2 and extend to the bottom of the packaging shell 2, the adjusting disc 102a presses down the spring 103, so that the sealing block 202 is pressed through the spring 103, so that the sealing block 202 is pressed into the containing hole 205, the pins 101 and the side wall of the containing hole 205 are sealed through the sealing block 202, an operator adjusts the position height of the adjusting disc 102a on the positioning barrel 102 according to the length of the sealing blocks 202 extending into the containing hole 205, so as to finely adjust the sealing blocks 202 extending into the containing hole 205 and having shorter lengths, and ensure that the pins 101 at corresponding positions are sealed by the sealing blocks 202;

through correspond on packaging shell 2 body set up a plurality ofly with pin 101 position complex elastic sealing block 202, run through sealed block 202 and stretch out packaging shell 2 through pin 101 to seal in order to meet the department with packaging shell 2 pin 101 through pushing down sealed block 202, realize packaging shell 2 to pin 101's supporting role simultaneously through sealed block 202, increase the stability of pin 101 structure, the practicality is strong.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a DC-DC switching power supply module packaging structure which characterized in that: the packaging structure comprises a circuit board (1) and a packaging shell (2), wherein the packaging shell (2) is of a box-shaped structure with an open top, the circuit board (1) is arranged in the packaging shell (2), and a cover plate (3) for sealing the open top of the packaging shell (2) is arranged above the circuit board (1);

a plurality of groups of vertically arranged pins (101) are arranged at the bottom of the circuit board (1), the pins (101) penetrate through the packaging shell (2) and extend to the lower part of the packaging shell (2), a positioning cylinder (102) is arranged at the joint of the outer side of the pins (101) and the circuit board (1), the positioning cylinder (102) is in interference fit with the pins (101), an adjusting disc (102a) is in threaded fit with the outer side of the positioning cylinder (102), and a spring (103) is sleeved on the outer side of the positioning cylinder (102) below the adjusting disc (102 a);

the inner side bottom of the packaging shell (2) corresponds to multiple groups, the pin (101) is provided with a plurality of pressure bearing barrels (201), the bottom end of each pressure bearing barrel (201) is arranged on the packaging shell (2) and vertically penetrates through a containing hole (205), the pin (101) penetrates through the containing hole (205) and is in clearance fit with the containing hole (205), the inner side of the top end of each pressure bearing barrel (201) is provided with an inverted round platform-shaped sealing block (202), the pin (101) penetrates through the sealing block (202), and the top end of the sealing block (202) is abutted against the bottom end of the spring (103).

2. The DC-DC switching power supply module package structure of claim 1, wherein: the top end of the sealing block (202) is provided with a limiting block (202a), the limiting block (202a) and the sealing block (202) are made of rubber materials and are integrally formed, and the bottom end of the spring (103) is sleeved on the outer side of the limiting block (202 a).

3. The packaging structure of the DC-DC switching power supply module is characterized in that mounting frames (104) are arranged at four corners of the circuit board (1), the mounting frames (104) are in L-shaped structures, each mounting frame (104) comprises vertical rods and transverse rods which are perpendicular to each other, and the vertical rods are fixed on the outer side of the circuit board (1).

4. The DC-DC switching power supply module package structure of claim 3, wherein: the bottom of the inner side of the packaging shell (2) corresponds to four groups of the mounting frames (104) and is provided with four mounting cylinders (203), the top ends of the mounting cylinders (203) are tightly propped against the center of the cross rod, and the mounting cylinders (203) are connected with the cross rod through screws.

5. The DC-DC switching power supply module package structure of claim 4, wherein: the installation section of thick bamboo (203) outside encapsulation shell (2) are inside to be provided with deflector (204), the equal vertical screw hole (204a) that is provided with in both sides center around deflector (204), just deflector (204) are close to the vertical guide way (204b) that is provided with in mounting bracket (104) one side, the horizontal pole is kept away from montant one end stretches into in guide way (204b), just the horizontal pole with guide way (204b) clearance fit.

6. The DC-DC switching power supply module package structure of claim 5, wherein: the bottom of the cover plate (3) is provided with a rubber pad (301), the bottom surface of the rubber pad (301) is tightly abutted to the top of the circuit board (1), four corners of the cover plate (3) correspond to the threaded holes (204a) and are provided with four groups of counter bores (302), and the cover plate (3) is connected with the guide plate (204) through screws through the counter bores (302).