CN205681292U

CN205681292U - Internally-arranged type Switching Power Supply

Info

Publication number: CN205681292U
Application number: CN201620609705.8U
Authority: CN
Inventors: 谢学灵
Original assignee: Zhejiang Hengwei Technology Co Ltd
Current assignee: Zhejiang Hengwei Technology Co Ltd
Priority date: 2016-06-18
Filing date: 2016-06-18
Publication date: 2016-11-09
Anticipated expiration: 2026-06-18

Abstract

The utility model discloses a kind of internally-arranged type Switching Power Supply, its drip irrigation device is to include housing and the circuit board being fixed in housing, housing includes drain pan and the upper cover being connected with it by screw, it is connected with limited block on the inwall of drain pan both sides, upper cover both sides are formed with flange, and flange has the chute extended along drain pan length direction, and limited block is connected with chute sliding, upper cover one end extends the rib being formed with drain pan end face abutting, has reached to be easy to the effect of assembling shell.

Description

Internally-arranged type Switching Power Supply

Technical field

This utility model relates to a kind of Switching Power Supply, particularly to a kind of internally-arranged type Switching Power Supply.

Background technology

Switching Power Supply is to utilize modern power electronics technology, controls the time ratio that switching tube turns on and off, and remains steady Determining a kind of power supply of output voltage, Switching Power Supply is typically controlled IC and MOSFET by pulse width modulation (PWM) and constitutes.Along with electricity The development of power electronic technology and innovation so that switch power technology is also innovated constantly.At present, Switching Power Supply is with small-sized, light Amount and high efficiency feature are widely used almost all of electronic equipment, and it is indispensable to be that current electronics and information industry develops rapidly Few a kind of power mode.

Have now a kind of internally-arranged type Switching Power Supply housing and circuit board on the market, the housing being rectangle become to include drain pan with Upper cover, drain pan has two sides and an end face, and cover rim is downwardly extending flange, and flange is plugged in bottom Between side, flange has corresponding screwed hole and is bolted with side.

But for keeping stablizing of drain pan side and upper cover, flange is closed against the side of shell, owing to being completely embedded, It is difficult to insert in drain pan upper cover；After insertion, it is difficult to again adjust drain pan with upper cover relative to position, makes screwed hole and the flange of upper cover Screwed hole corresponding.

Utility model content

The purpose of this utility model is to provide a kind of internally-arranged type Switching Power Supply being easy to assembling.

Above-mentioned technical purpose of the present utility model has the technical scheme that

A kind of internally-arranged type Switching Power Supply, including housing and the circuit board that is fixed in housing, housing include drain pan and with Its upper cover connected by screw, drain pan both sides inwall is connected with limited block, and upper cover both sides are formed with flange, flange has The chute extended along drain pan length direction, limited block is connected with chute sliding, and the extension of upper cover one end is formed with drain pan end face and abuts Rib.

By using such scheme, first upper cover one end is inserted in drain pan, utilize the elasticity of drain pan and upper cover, by drain pan Limited block inserts in the chute on flange, allows limited block while sliding in chute, and relative, upper cover is axial with limited block Lower upset, whole upper cover pushes in drain pan, when the end face of upper cover rib Yu drain pan abuts against, drain pan and the screwed hole pair of upper cover Together, by bolt, drain pan is being fixed with upper cover, completing the assembling of housing；First chute is coordinated with limited block play the most spacing Effect, and upper cover one end drain pan will insert in drain pan relatively and whole drain pan inserted in drain pan more efficient and convenient, make Chute is relative with limited block to be overturn and sliding, so that rib abuts with drain pan end face, and then makes screwed hole align, it is simple to alignment Drain pan and the screwed hole of upper cover, so facilitate assembling.

The formation boss it is also preferred that the left drain pan side face caves inward, boss upper surface abuts with flange.

By using such scheme, reinforcing plate is supported by boss, limits the upper and lower position of upper cover further Fixed, it is simple to the screwed hole of alignment drain pan and upper cover, consequently facilitating assembling.

It is also preferred that the left limited block becomes hemispherical, its plane is welded with drain pan, and its sphere is towards inside drain pan.

By using such scheme, hemispherical limited block smooth surface easy glide, when limited block is pressed into chute, upper cover Flange along the sphere sliding from top to bottom of limited block, utilize the elasticity of drain pan to be extruded the side of drain pan and open, thus by position block In press-in chute, so it is beneficial to upper cover is installed, it is simple to dress is worn.

It is also preferred that the left upper cover is connected with the push pedal being vertically arranged away from limited block one end, between leaving between push pedal and circuit board Gap.

By using such scheme, pull push pedal along drain pan length direction, make limited block and chute Relative sliding, by upper cover Rib separate with the end face of bottom；By upper cover pull-up from the gap between push pedal and circuit board, the upper cover is made with limited block to be Axle overturns；Finally upper cover is extracted out, due to the elasticity of upper cover Yu drain pan, thus upper cover is dismantled.

It is also preferred that the left the adjacent opposite side in reinforcing plate lower end is formed with chamfering structure.

By using such scheme, the spacing being smaller than drain pan two sides between guide part, so guide part is easy to insert Enter in drain pan；When inserting upper cover, first the portion of being directed to inserts in drain pan, along guide part lateral surface sliding, thus by whole upper cover Clamp-on between drain pan two sides.

It is also preferred that the left have screwed hole on flange, and screwed hole surrounding forms reinforcing plate.

By using such scheme, reinforcing plate ensures the intensity of screwed hole surrounding, prevents the flange of screw thread surrounding from damaging.

It is also preferred that the left screwed hole is connected with the threaded extension set being connected with screwed hole.

By using such scheme, threaded extension set extends the length of female thread, prevents bolt from threading off, thus ensure that Drain pan is connected fastening with upper cover.

It is also preferred that the left drain pan has the counter sink corresponding with screwed hole.

By using such scheme, counter sink ensures that bolt head will not protrude from drain pan surface, and the countersunk head of counter sink Partial sidewall becomes the conical surface, guides bolt to enter in counter sink.

In sum, this utility model has the advantages that by chute and chamfering structure, it is simple to inserted by upper cover In drain pan, solve the problem causing being difficult to assemble due to upper cover and closely cooperating of drain pan；By chute and limited block phase Coordinate, wait time circuit board is checked, it is not necessary to dismounting upper cover, only need to by demounting bolt again with push pedal by rib and drain pan end face Space out, upper cover can be flipped up, it is simple to the circuit board in housing is overhauled；Counter sink and threaded extension set, protect Demonstrate,prove bolted stable, prevented bolt from threading off.

Accompanying drawing explanation

Fig. 1 is internally-arranged type Switching Power Supply shell structure schematic diagram；

Fig. 2 is that bottom case structure schematic diagram is inserted in upper cover one end；

Fig. 3 is chute and limited block detaching structure schematic diagram；

Fig. 4 is internally-arranged type Switching Power Supply exploded perspective view.

In figure, 1, housing；11, drain pan；111, limited block；112, boss；113, counter sink；12, upper cover；121, flange； 1211, chute；122, rib；123, reinforcing plate；1231, chamfering structure；124, threaded extension set；125, push pedal；2, circuit board； 3, screwed hole.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.The most identical parts are with identical accompanying drawing Labelling represents.It should be noted that the word "front", "rear" used in describing below, "left", "right", "up" and "down" refer to Being the direction in accompanying drawing, word " bottom surface " and " end face ", " interior " and " outward " refer respectively to towards or away from particular elements geometry The direction at center.

As it is shown in figure 1, a kind of internally-arranged type Switching Power Supply, including housing 1 and the circuit board 2 being fixed in housing 1, housing 1 Rectangularity, and housing 1 includes drain pan 11 and forms the upper cover 12 of rectangular structure with drain pan 11.

Drain pan 11 has bottom surface, end face and two sides, totally four faces；Drain pan 11 extends formation to away from end face side Erecting bed, is installed with the terminal being connected with circuit board 2 by circuit on erecting bed.

As shown in Figure 3 and Figure 4, upper cover 12 both sides extend and form flange 121, with drain pan 11 side outside two flange 121 Inner side abut, thus upper cover 12 is held between the side of drain pan 11, and then fixed cover on the width of drain pan 11 12；The i.e. side of drain pan 11 side face and end face cave inward and form boss 112, and flange 121 lower end is connected to the upper surface of boss 112 On, thus fixed cover 12 in the short transverse of drain pan 11；Upper cover 12 is bent with rib 122, push pedal 125 away from terminal one end Be vertically arranged and and circuit board 2 between leave gap, rib 122 is connected to inside the end face of drain pan 11, thus at drain pan 11 Fixed cover 12 on length direction；So complete upper cover 12 to fix with the preliminary of drain pan 11.

Being provided with the limited block 111 that mirror image is arranged inside drain pan 11 side, limited block 111 becomes hemispherical, limited block 111 Plane is welded with drain pan 11, and the spherical of limited block 111 is towards inside housing 1；Have for limited block 111 sliding on flange 121 The chute 1211 moved, chute 1211 is arranged along flange 121 length direction；On flange 121 with rib 122, upper cover 12 all has Screwed hole 3 corresponding with drain pan 11, and drain pan 11 has the corresponding counter sink of screwed hole 3 113, both are bolted. Wherein, screwed hole 3 surrounding of upper cover 12 is connected with threaded extension set 124, the column that threaded extension set 124 circularizes for cross section Body, the female thread of threaded extension set 124 is connected with the female thread of screwed hole 3.

Chute 1211 forms reinforcing plate 123 with screwed hole 3 surrounding, and reinforcing plate 123 is formed by flange 121 extension；Reinforcing plate 123 lower end outside are formed with chamfering structure 1231.

During installation, as shown in Figures 2 and 3, upper cover 12 first has rib 122 one end insert in drain pan 11；The recycling end Shell 11 and the elasticity of upper cover 12, in the chute 1211 be pressed into the limited block 111 of drain pan 11 on flange, allow limited block 111 slide In groove 1211 while sliding, relative, upper cover 12 downwardly turns over limited block 111 for axle, makes flange mutually support with boss 112 Connect；Tailing edge drain pan 11 length direction promotes push pedal 125, makes whole upper cover 12 push in drain pan 11, when the rib 122 of upper cover 12 When abutting against with the end face of drain pan 11, drain pan 11 aligns with the screwed hole 3 of upper cover 12, by bolt by drain pan 11 and upper cover 12 Fixing, complete the assembling of housing 1；Otherwise, the most detachably.

This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but As long as all being protected by Patent Law in right of the present utility model.

Claims

1. an internally-arranged type Switching Power Supply, including housing (1) and the circuit board (2) that is fixed in housing (1), housing (1) includes Drain pan (11) and the upper cover (12) being connected by screw with it, it is characterised in that: affixed limited on the inwall of drain pan (11) both sides Position block (111), upper cover (12) both sides are formed with flange (121), flange (121) have along the extension of drain pan (11) length direction Chute (1211), limited block (111) is connected with chute (1211) sliding, and the extension of upper cover (12) one end is formed with drain pan (11) end face The rib (122) abutted.

Internally-arranged type Switching Power Supply the most according to claim 1, it is characterised in that: limited block (111) becomes hemispherical, its plane Welding with drain pan (11), its sphere is towards drain pan (11) inner side.

Internally-arranged type Switching Power Supply the most according to claim 1, it is characterised in that: drain pan (11) side face cave inward formation convex Platform (112), boss (112) upper surface abuts with flange (121).

Internally-arranged type Switching Power Supply the most according to claim 1, it is characterised in that: upper cover (12) is away from limited block (111) End is connected with the push pedal (125) being vertically arranged, and leaves gap between push pedal (125) and circuit board (2).

Internally-arranged type Switching Power Supply the most according to claim 1, it is characterised in that: have screwed hole (3) on flange (121), And screwed hole (3) surrounding forms reinforcing plate (123).

Internally-arranged type Switching Power Supply the most according to claim 5, it is characterised in that: adjacent another in reinforcing plate (123) lower end Side is formed with chamfering structure (1231).

Internally-arranged type Switching Power Supply the most according to claim 5, it is characterised in that: screwed hole (3) is connected with and screwed hole (3) The threaded extension set (124) being connected.

Internally-arranged type Switching Power Supply the most according to claim 5, it is characterised in that: drain pan (11) has and screwed hole (3) phase Corresponding counter sink (113).