CN206149634U

CN206149634U - PCB shell

Info

Publication number: CN206149634U
Application number: CN201621031702.7U
Authority: CN
Inventors: 陈利君; 彭志军
Original assignee: SICHUAN SHENGHUA POWER SUPPLY TECHNOLOGY Co Ltd
Current assignee: SICHUAN SHENGHUA POWER SUPPLY TECHNOLOGY Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-05-03
Anticipated expiration: 2026-08-31

Abstract

The utility model relates to a power electronics field particularly, relates to a PCB shell. The utility model provides a pair of PCB shell, including open -top's casing and supporting part, in order to keep certain safe distance with the bottom plate after the PCB installation, make face and bottom plate keeping parallelism, the utility model discloses the supporting part has been taked to set up in the casing, supporting part and casing integrated into one piece to replace the mode of establishing plastic washer that adds, thus reduction manufacturing cost, the while has also been solved plastic washer's highly very difficult unanimously leading to and can't have been satisfied the problem that the high accuracy required, overlaps the process of establishing plastic washer simultaneously in the time of also simplifying the encapsulating, and it is more convenient that the messenger operates.

Description

PCB shells

Technical field

This utility model is related to technical field of electronic components, in particular to a kind of PCB shells.

Background technology

With the high speed development of Power Electronic Technique, electron electric power equipment is increasingly close with the relation of the life of people, work Cut, and electronic equipment all be unable to do without reliable power supply.Switching Power Supply is to utilize modern power electronics technology, controlling switch open and The time ratio of shut-off, maintains a kind of power supply of regulated output voltage.With the development and innovation of Power Electronic Technique, switch electricity Source technology is also innovated constantly.

Common Switching Power Supply includes PCB and shell, and PCB is connected by the installation portion that nut is arranged with inside the shell, in order to Allow between PCB and shell and keep certain safe spacing, while in order to reach insulation effect, when being commonly installed PCB can PCB with it is outer Plastic washer is added between shell installation portion, plastic washer is poor due to high consistency, therefore when required precision is high, need through Could use after screening, while sleeving plastic packing ring is also needed to when encapsulating, complex procedures, and increase cost.

Utility model content

The purpose of this utility model is to provide a kind of PCB shells, and it can solve the problem that and adds the height of plastic washer very Difficult consistent problem, while operation when can also simplify encapsulating, reduces production cost, using convenient.

What embodiment of the present utility model was realized in：

A kind of PCB shells, can be used to encapsulate the PCB of Switching Power Supply, and the PCB shells include open-topped housing and prop up Support part, supporting part is arranged in housing, and supporting part is integrally formed with housing, and housing includes base plate, and base plate is provided with installing hole.

Further, the housing include the first side wall, second sidewall, the 3rd side wall, the 4th side wall and base plate, first Side wall, second sidewall, the 3rd side wall, the 4th side wall are connected with base plate, and the first side wall is oppositely arranged with second sidewall, the 3rd side Wall and the 4th side wall are oppositely arranged, and the first side wall and the 3rd side wall junction form the first corner, the first side wall and the 4th side wall Junction forms the second corner, and the 4th side wall forms the method for three turning angles with second sidewall junction, and the 3rd side wall is tied with second sidewall The 4th corner is formed at conjunction.

Further, the installing hole includes the first installing hole, the second installing hole, the 3rd installing hole and the 4th installation Hole, base plate is provided with the first lobe near the first corner, and the first installing hole is opened in the first lobe, and base plate is near the second corner It is provided with the second lobe, the second installing hole is opened in the second lobe, base plate is provided with the 3rd lobe near the method for three turning angles, the 3rd Installing hole is opened in the 3rd lobe, and base plate is provided with the 4th lobe near the 4th corner, and it is convex that the 4th installing hole is opened in the 4th The portion of rising.

Further, the supporting part includes the first supporting part, the second supporting part, the 3rd supporting part and the 4th supporting part, First supporting part includes the first supporting surface, and the second supporting part includes the second supporting surface, and the 3rd supporting part includes the 3rd supporting surface, the Four supporting parts include the 4th supporting surface, and the first supporting surface, the second supporting surface, the 3rd supporting surface and the 4th supporting surface are and base plate Parallel, base plate is equal with the vertical dimension of the first supporting surface, the second supporting surface, the 3rd supporting surface and the 4th supporting surface.

Further, first supporting part and the first lobe interval setting, between the second supporting part and the second lobe Every setting, the 3rd supporting part and the 3rd lobe interval setting, the 4th supporting part and the 4th lobe interval setting, first supports Center of the portion from the first corner inner surface to housing extends, and the first supporting surface intersects respectively with the first side wall and the 3rd side wall, the One supporting part staggers with the first installing hole；Center of second supporting part from the second corner inner surface to housing extends, and second supports Face is intersected respectively with the first side wall and the 4th side wall, and the second supporting part staggers with the second installing hole；3rd supporting part is by the 3rd turn Angle inner surface to the center of housing extends, and the 3rd supporting surface intersect respectively with the 4th side wall and second sidewall, the 3rd supporting part and 3rd installing hole staggers；Center of 4th supporting part from the 4th corner inner surface to housing extends, and the 4th supporting surface is respectively with the Two side walls and the 3rd side wall are intersecting, and the 4th supporting part staggers with the 4th installing hole.

Further, first supporting part can also from the first side wall to the center of housing extend, the second supporting part from Second sidewall to the center of housing extends, and the 3rd supporting part extends from the 3rd side wall to casing center, and the 4th supporting part is by the 4th Side wall to casing center extends, and the first supporting part, the second supporting part, the 3rd supporting part and the 4th supporting part set with base plate interval Put.

Further, first supporting part can also be the first boss being arranged in the first lobe, first boss It is arranged between the first installing hole and the first corner, staggers with the first installing hole；Second supporting part is to be arranged at the second lobe On second boss, second boss is arranged between the second installing hole and the second corner, staggers with the second installing hole；3rd supports Portion is the 3rd boss being arranged in the 3rd lobe, and the 3rd boss is arranged between the 3rd installing hole and the method for three turning angles, with Three installing holes stagger；4th supporting part is the 4th boss being arranged in the 4th lobe, and the 4th boss is arranged at the 4th installation Between the corners of Kong Yu tetra-, stagger with the 4th installing hole.

Further, the base plate is provided with the raised radiating part in multiple open top directions to housing, radiating part with The position of components correspondence of the installation on pcb board, radiating part can fit the package surface of the element installed on pcb board, improve radiating Effect.

Hinge structure, this utility model has the advantages that：A kind of PCB shells that this utility model is provided, Including open-topped housing and supporting part, supporting part is integrally formed with housing, and the base plate of housing is provided with installing hole.Thus, can So that PCB is placed on supporting part, and PCB is fixedly connected with the installing hole on base plate, supporting part can make pcb board face and bottom Plate keeping parallelism, without adding plastic washer, thus reduces cost, and the operation of sleeving plastic packing ring is eliminated during encapsulating so that It is more convenient to operate.

To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and Coordinate appended accompanying drawing, be described in detail below.

Description of the drawings

It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of this utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in this utility model embodiment The embodiment stated is a part of embodiment of this utility model, rather than the embodiment of whole.Generally described in accompanying drawing herein and The component of this utility model embodiment for illustrating can be arranged and designed with a variety of configurations.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the model of this utility model protection Enclose.

A kind of floor map of PCB shells that Fig. 1 is provided for this utility model first embodiment；

A kind of axonometric chart of PCB shells that Fig. 2 is provided for this utility model first embodiment；

A kind of floor map of PCB shells that Fig. 3 is provided for this utility model second embodiment；

A kind of axonometric chart of PCB shells that Fig. 4 is provided for this utility model second embodiment；

A kind of floor map of PCB shells that Fig. 5 is provided for this utility model 3rd embodiment；

A kind of axonometric chart of PCB shells that Fig. 6 is provided for this utility model 3rd embodiment.

Primary symbols explanation：

Housing 1, the first side wall 11, second sidewall 12, the 3rd side wall 13, the 4th side wall 14, base plate 15, the first corner 21, Second corner 22, the method for three turning angles 23, the 4th corner 24, the first installing hole 31, the second installing hole 32, the 3rd installing hole 33, the 4th Installing hole 34, radiating part 4.

In first embodiment：First supporting part 51, the second supporting part 52, the 3rd supporting part 53, the 4th supporting part 54, first Supporting surface 511, the second supporting surface 521, the 3rd supporting surface 531, the 4th supporting surface 541, the first lobe 61, the second lobe 62, the 3rd lobe 63, the 4th lobe 64；

In second embodiment：First supporting part 71, the second supporting part 72, the 3rd supporting part 73, the 4th supporting part 74, first Supporting surface 711, the second supporting surface 721, the 3rd supporting surface 731, the 4th supporting surface 741；

In 3rd embodiment：First supporting part 81, the second supporting part 82, the 3rd supporting part 83, the 4th supporting part 84.

Specific embodiment

Below in conjunction with accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the reality of whole Apply example.The component of this utility model embodiment generally described and illustrated in accompanying drawing herein can be come with a variety of configurations Arrangement and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit Claimed scope of the present utility model, but it is merely representative of selected embodiment of the present utility model.Based on this utility model Embodiment, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, all Belong to the scope of this utility model protection.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, Or be integrally connected；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to by intermediary It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in this utility model.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.

In description of the present utility model, " " center " " on ", D score, " interior ", " outward " etc. are indicated it should be noted that term Orientation or position relationship be that, based on orientation shown in the drawings or position relationship, or the utility model product is usual when using The orientation put or position relationship, are for only for ease of description this utility model and simplify description, rather than indicate or imply institute The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality With new restriction.Additionally, term " first ", " second ", " the 3rd ", " the 4th " etc. are only used for distinguishing description, and it is not understood that To indicate or implying relative importance.Term " parallel ", " vertical ", etc. term be not offered as requiring part abswolute level or outstanding Hang down, and can be to be slightly tilted.

Below in conjunction with the accompanying drawings, some embodiments of the present utility model are elaborated.In the case where not conflicting, under Feature in the embodiment stated and embodiment can be mutually combined.

First embodiment

Fig. 1 and Fig. 2 is refer to, the present embodiment provides a kind of PCB shells 100, and it includes housing 1 and supporting part, supporting part It is arranged inside housing 1, supporting part is integrally formed with housing 1.

Housing 1 includes base plate 15, the first side wall 11, second sidewall 12, the 3rd side wall 13, the 4th side wall 14, the first side wall 11st, second sidewall 12, the 3rd side wall 13, the 4th side wall 14 are connected with base plate 15, and the first side wall 11 is relative with second sidewall 12 Arrange, the 3rd side wall 13 and the 4th side wall 14 are oppositely arranged, the first side wall 11, second sidewall 12, the 3rd side wall 13, the 4th side wall 14 and base plate 15 constitute open-topped housing 1.

The junction of the side wall 13 of the first side wall 11 and the 3rd forms the first corner 21 of housing 1, the first side wall 11 and the 4th The junction of side wall 14 forms the second corner 22 of housing 1, and the 4th side wall 14 forms housing 1 with the junction of second sidewall 12 The method of three turning angles 23, the 3rd side wall 13 forms the 4th corner 24 of housing 1 with the junction of second sidewall 12.The base plate 15 of housing 1 On offer installing hole, in the present embodiment, installing hole can be blind hole.In the present embodiment, base plate 15 is near the first corner 21 one end is provided with the first lobe 61 protruded to the open top of housing 1, and the first lobe 61 opens up the first installing hole 31, Base plate 15 is provided with the second lobe 62 protruded to the open top of housing 1, the second lobe near one end of the second corner 22 62 open up the second installing hole 32, and base plate 15 is provided with the 3rd protruded to the open top of housing 1 near one end of the method for three turning angles 23 Lobe 63, the 3rd lobe 63 opens up the 3rd installing hole 33, and base plate 15 is provided with to housing 1 near one end of the 4th corner 24 4th lobe 64 of open top protrusion, the 4th lobe 64 is provided with the 4th installing hole 34.Due to base plate 15 it is very thin therefore logical Cross and add lobe in base plate 15 to realize opening up installing hole, PCB is coordinated by screw with installing hole, and PCB is fixed in realization In PCB encapsulating shells.

Supporting part includes the first supporting part 51, the second supporting part 52, the 3rd supporting part 53 and the 4th supporting part 54.First Support part 51 includes the first supporting surface 511, and the second supporting part 52 includes the second supporting surface 521, and the 3rd supporting part 53 includes the 3rd Support face 531, the 4th supporting part 54 includes the 4th supporting surface 541, the first supporting surface 511, the second supporting surface 521, the 3rd supporting surface 531 and the 4th supporting surface 541 it is parallel with base plate 15, and the first supporting surface 511 is to the distance and the second supporting surface 521 of base plate 15 To base plate 15 distance is equal, the second supporting surface 521 to base plate 15 distance and the 3rd supporting surface 531 arrive the distance phase of base plate 15 Deng the distance of the distance of the 3rd supporting surface 531 to base plate 15 and the 4th supporting surface 541 to base plate 15 is equal, to ensure that PCB is installed Plate face can be relative to the level of base plate 15 after PCB shells.

Center of first supporting part 51 from the inner surface of the first corner 21 to housing 1 extends, the area root of the first supporting surface 511 Arrange according to the area contacted with PCB edge insulating surfaces, the second supporting part 52 is prolonged from the inner surface of the second corner 22 to the center of housing 1 Stretch, the area of the second supporting surface 521 is arranged according to the area contacted with PCB edge insulating surfaces, and the 3rd supporting part 53 is by the 3rd turn The inner surface of angle 23 to the center of housing 1 extends, and the area of the 3rd supporting surface 531 is according to the area contacted with PCB edge insulating surfaces Arrange, center of the 4th supporting part 54 from the inner surface of the 4th corner 24 to housing 1 extends, the area of the 4th supporting surface 541 according to The area contacted with PCB edge insulating surfaces is arranged, while the first supporting part 51 staggers with the first installing hole 31, the second supporting part 52 Stagger with the second installing hole 32, the 3rd supporting part 53 staggers with the 3rd installing hole 33, the 4th supporting part 54 and the 4th installing hole 34 Stagger, stagger and be disposed to the stop for preventing supporting part to installing hole, hinder the installation of PCB.

PCB shells are made using metal material, and base plate 15 is provided with multiple radiatings raised to the open top direction of housing 1 Portion 4, radiating part 4 is fitted setting with the electron device package shell top surface installed on PCB, and the size and location of radiating part 4 is according to PCB The position of the electronic devices and components encapsulating shell top surface of upper installation and size determine, radiating part 4 using metal thermal diffusivity, by with electricity The contact of sub- component package shell top surface helps PCB radiatings.

The opening surface of housing 1 is provided with depression draw-in groove (figure is not marked) in the present embodiment, and PCB encapsulating shells yet include a upper lid (not shown), upper lid is oppositely arranged with base plate 15, is above covered with the fastener being engaged with depression draw-in groove, lid is completed to shell Closing.

It is to the principle that PCB is packaged using the PCB shells 100 of the present embodiment：PCB is placed in housing 1, and will Align respectively and be placed on the first supporting surface 511, the second supporting surface 521, the 3rd supporting surface 531 and the 4th supporting surface in four angles of PCB On 541, with nut by tetra- jiaos of PCB respectively with base plate 15 on the first installing hole 31, the second installing hole 32, the 3rd installing hole 33 and 4th installing hole 34 connects, and completes the installation to PCB, it is ensured that pcb board face relative to base plate 15 level, radiating part 4 and PCB The laminating of the electron device package outer casing top surface of upper installation also improves the radiating of PCB, without adding plastic washer, thus reduces Cost, eliminates the operation of sleeving plastic packing ring so that more convenient to operate during encapsulating.

Second embodiment

Fig. 3 and Fig. 4 is refer to, the present embodiment provides a kind of PCB shells 200, and it is big with first embodiment PCB shell 100 Cause is identical, and it is the arc boss being arranged in the first lobe 61 that the two difference is the first supporting part 71 of PCB shells 200, Simultaneously the first supporting part 71 is arranged between the first corner 21 and the first installing hole 31；Second supporting part 72 is convex to be arranged at second The arc boss in portion 62 is played, while the second supporting part 72 is arranged between the second corner 22 and the second installing hole 32；3rd Support part 73 is the arc boss being arranged in the 3rd lobe 63, while the 3rd supporting part 73 is arranged at the method for three turning angles 23 and the 3rd Between installing hole 33, the 4th supporting part 74 is the arc boss being arranged in the 4th lobe 64, while the 4th supporting part 74 sets It is placed between the 4th corner 24 and the 4th installing hole 34.Generally pcb board face edge is insulating surfaces, and supporting part is located at installing hole and turns Can ensure that supporting part is insulation with the contact surface of PCB between angle, to ensure safety when PCB works.

It is to the principle that PCB is packaged using the PCB shells 200 of the present embodiment：PCB is placed in housing 1, and will Align respectively and be placed on the first supporting surface 711, the second supporting surface 721, the 3rd supporting surface 731 and the 4th supporting surface in four angles of PCB On 741, with nut by tetra- jiaos of PCB respectively with base plate 15 on the first installing hole 31, the second installing hole 32, the 3rd installing hole 33 and 4th installing hole 34 connects, and completes the encapsulation to PCB, it is ensured that pcb board face is parallel relative to base plate 15, radiating part 4 and PCB The laminating of the electron device package outer casing top surface of upper installation also improves the radiating of PCB, without adding plastic washer, thus reduces Cost, eliminates the operation of sleeving plastic packing ring so that more convenient to operate during encapsulating.

3rd embodiment

Fig. 5 and Fig. 6 is refer to, the present embodiment provides a kind of PCB shells 300, its PCB shell 100 with first embodiment Roughly the same, the difference of the two is that the first supporting part 81 of the PCB shells 300 of the present embodiment is disposed on the first side wall 11 simultaneously Extend to the center of housing 1, the area of the first supporting part 81 is determined according to the area contacted with PCB edge insulating surfaces；Second To be arranged at second sidewall 12 and extending to the center of housing 1, the area of the second supporting part 82 is according to exhausted with PCB edge for support part 82 The area of edge face contact is determined；3rd supporting part 83 is arranged at the 3rd side wall 13 and extends to the center of housing 1, the 3rd supporting part 83 area is determined according to the area contacted with PCB edge insulating surfaces；4th supporting part 84 be disposed on the 4th side wall 14 and to The center of housing 1 extends, and the area of the 4th supporting part 84 can be with according to the area decision contacted with PCB edge insulating surfaces, so Safety when ensureing that PCB works.

In sum, this utility model ensure that pcb board face relative to the parallel of base plate, without adding plastic washer again, So as to reduce production cost, the operation of sleeving plastic packing ring when also eliminating encapsulating makes more convenient to operate.

Preferred embodiment of the present utility model is the foregoing is only, this utility model is not limited to, for this For the technical staff in field, this utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims

1. a kind of PCB shells, it is characterised in that the PCB shells include open-topped housing and supporting part, the supporting part It is arranged in the housing, and is integrally formed with the housing, the housing includes base plate, the base plate is provided with installing hole.

2. PCB shells as claimed in claim 1, it is characterised in that the housing include the first side wall, second sidewall, the 3rd Side wall and the 4th side wall, the first side wall, second sidewall, the 3rd side wall, the 4th side wall are connected with the base plate, described The first side wall is oppositely arranged with second sidewall, and the 3rd side wall and the 4th side wall are oppositely arranged, the first side wall with it is described The junction of the 3rd side wall forms the first corner, and the first side wall forms the second corner with the junction of the 4th side wall, The junction of the 4th side wall and the second sidewall forms the method for three turning angles, the knot of the 3rd side wall and the second sidewall The 4th corner is formed at conjunction.

3. PCB shells as claimed in claim 2, it is characterised in that the installing hole includes that the first installing hole, second are installed Hole, the 3rd installing hole and the 4th installing hole, the base plate is provided with the first lobe, first peace near first corner Dress hole is opened in first lobe, and the base plate is provided with the second lobe near second corner, and described second installs Hole is opened in second lobe, and the base plate is provided with the 3rd lobe, the 3rd installing hole near the method for three turning angles The 3rd lobe is opened in, the base plate is provided with the 4th lobe near the 4th corner, and the 4th installing hole is opened Located at the 4th lobe.

4. PCB shells as claimed in claim 3, it is characterised in that the supporting part includes that the first supporting part, second support Portion, the 3rd supporting part and the 4th supporting part, first supporting part includes the first supporting surface, and second supporting part includes second Supporting surface, the 3rd supporting part includes the 3rd supporting surface, and the 4th supporting part includes the 4th supporting surface, and described first supports Face, second supporting surface, the 3rd supporting surface and the 4th supporting surface are parallel with the base plate.

5. PCB shells as claimed in claim 4, it is characterised in that the base plate and first supporting surface, second support The vertical dimension in face, the 3rd supporting surface and the 4th supporting surface is equal.

6. PCB shells as claimed in claim 4, it is characterised in that first supporting part is spaced with first lobe Arrange, between second supporting part and the second lobe interval setting, the 3rd supporting part and the 3rd lobe Every setting, the 4th supporting part and the 4th lobe interval setting, first supporting part is by first corner Surface to the center of the housing extends, and second supporting part is prolonged from the second corner inner surface to the center of the housing Stretch, center of the 3rd supporting part from the method for three turning angles inner surface to the housing extends, and the 4th supporting part is by institute State the 4th corner inner surface to extend to the center of the housing.

7. PCB shells as claimed in claim 6, it is characterised in that first supporting part staggers with first installing hole, Second supporting part staggers with second installing hole, and the 3rd supporting part staggers with the 3rd installing hole, and described Four supporting parts stagger with the 4th installing hole.

8. PCB shells as claimed in claim 4, it is characterised in that first supporting part, the second supporting part, the 3rd support Portion and the 4th supporting part with the base plate interval setting, during first supporting part is from the first side wall to the housing The heart extends, and center of second supporting part from the second sidewall to the housing extends, and the 3rd supporting part is by described 3rd side wall to the center of the housing extends, and the 4th supporting part is prolonged from the 4th side wall to the center of the housing Stretch.

9. PCB shells as claimed in claim 4, it is characterised in that first supporting part is raised to be arranged at described first First boss in portion, second supporting part is the second boss being arranged in second lobe, and the described 3rd supports Portion is the 3rd boss being arranged in the 3rd lobe, and the 4th supporting part is to be arranged in the 4th lobe 4th boss.

10. PCB shells as described in any one of claim 1-9, it is characterised in that the base plate is provided with multiple to the shell The raised radiating part in the open top direction of body.