CN208444836U - Packaging body, switch power module, PCB module and air conditioner - Google Patents

Abstract

The utility model discloses a kind of packaging body, switch power module, PCB module and air conditioner.Wherein, for the packaging body for being electrically connected with external pcb board, the packaging body includes package casing, and the package casing is equipped with protrusion, the protrusion with external pcb board for offseting, so that space defined by between the package casing and external pcb board is connected to free surrounding space.Protrusion is arranged by package casing in technical solutions of the utility model, when packaging body is soldered to external pcb board, the presence of the protrusion to form space between package casing and external pcb board, it is i.e. non-between the bottom of package casing and external pcb board to be close to, with this make between package casing and external pcb board defined by space be connected to free surrounding space, increase the flowing of air, prevent the aggregation of wet air and generate condensation water, avoid external pcb board due to condensation water presence and circuit malfunction.

Description

Packaging body, switch power module, PCB module and air conditioner

Technical field

The utility model relates to electronic component encapsulation technology field, in particular to a kind of packaging body, switch power module, PCB module and air conditioner.

Background technique

Each discrete component is carried out modularized encapsulation by packaging body, to be formed, volume is smaller, the higher mould of power density Block.After traditional packaging body is soldered to external pcb board, packaging body is close to exterior PC B, such as encounters wet environment or quickly temperature When changing environment, condensation water easy to form between the package casing bottom of packaging body and external pcb board, the presence of the condensation water can be led The decline for causing the surface insulation performance of external pcb board, causes circuit malfunction.

Utility model content

The main purpose of the utility model is to propose a kind of packaging body, it is intended to solve to be installed on external pcb board when packaging body When, condensation water is easily formed between packaging body and external pcb board and causes what the surface insulation performance of external pcb board declined to ask Topic.

To achieve the above object, the utility model discloses a kind of packaging bodies, described for being electrically connected with external pcb board Packaging body includes package casing, and the package casing is equipped with protrusion, and the protrusion is used to offset with external pcb board, so that Space defined by between the package casing and external pcb board is connected to free surrounding space.

Optionally, the package casing includes cover, the opening that the cover is equipped with cavity and is connected to the cavity, The protrusion is set to the root edge of the corresponding cover of the opening.

Optionally, the packaging body further include:

Internal PCB, the Internal PCB are set in the cavity；

Draw pin, one end of the draw pin are electrically connected to the Internal PCB, the other end in the open protrusion, for External pcb board electrical connection.

Optionally, along the length direction of the draw pin, the size of the protrusion is less than the draw pin and protrudes from described open The size at the position of mouth.

Optionally, the package casing includes end plate and cover, and the cover is equipped with cavity and is connected to the cavity Opening, the end plate be set to it is described opening to block the cavity；The protrusion is set to the cover or the end plate.

Optionally, the packaging body further include:

Internal PCB, the Internal PCB are set in the cavity；

Draw pin, one end of the draw pin are electrically connected to the Internal PCB, and the other end runs through the end plate, for it is outer The electrical connection of portion's pcb board.

Optionally, along the direction of the draw pin, the size of the protrusion is less than the draw pin and protrudes from the end plate The size at position.

Optionally, when the protrusion is set to the end plate, the protrusion is set to the edge of the end plate；

When the protrusion is set to the cover, the protrusion is set to the bottom of the corresponding cover of the opening Edge.

Optionally, the protrusion is molded as one with the end plate or the cover.

Optionally, the cover is rectangular parallelepiped structure, and the protrusion is set to the cover, and is located at described open corresponding Cover root edge corner；

And/or the height of the protrusion is 0.8~3.5mm.

Optionally, the protrusion includes the first protruding part and the second protruding part of intersection connection, first protruding part The corner of the root edge of the cover is connected to second protruding part.

Optionally, the packaging body further includes component, and the component is set in the cavity and is electrically connected to described Internal PCB；

Or, the packaging body further includes component, the component is set in the cavity and is electrically connected to the inside Pcb board；The component includes one of transformer, inductance, electrolytic capacitor or a variety of.

The invention also discloses a kind of switch power module, the switch power module is encapsulation as described above Body.

The invention also discloses a kind of PCB module, the PCB module includes external pcb board and is electrically connected to outer Switch power module on portion's pcb board, the switch power module are switch power module as described above.

The invention also discloses a kind of air conditioner, the air conditioner includes PCB module as described above.

Protrusion is arranged by package casing in technical solutions of the utility model, should when packaging body is soldered to external pcb board The presence of protrusion to form space between package casing and external pcb board, i.e., the bottom of package casing and external pcb board it Between non-abutting, with this make between package casing and external pcb board defined by space be connected to free surrounding space, increase air Flowing, prevent the aggregation of wet air and generate condensation water, avoid external pcb board due to condensation water presence and circuit lose Effect.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is that packaging body is installed on exterior PC B plate structural schematic diagram；

Fig. 2 is packaging body perspective view；

Fig. 3 is packaging body perspective view (another visual angle)；

Fig. 4 is packaging body exploded view；

Fig. 5 is packaging body main view；

Fig. 6 is cover perspective view；

Fig. 7 is cover main view.

Drawing reference numeral explanation:

Label	Title	Label	Title
				1	Packaging body	120	Protrusion
2	External pcb board	121	First protruding part
				100	Package casing	122	Second protruding part
110	Cover	130	End plate
				111	It is open	210	Draw pin
112	Cavity	N/A	N/A

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.

In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.

In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model It is required that protection scope within.

The utility model proposes a kind of packaging bodies 1.

As shown in Figures 1 to 7, in the present embodiment, the packaging body 1 with external pcb board 2 for being electrically connected, the envelope Filling body 1 includes package casing 100, and the package casing 100 is equipped with protrusion 120, and the protrusion 120 is used for and exterior PC B Plate 2 offsets, so that space defined by between the package casing 100 and external pcb board 2 is connected to free surrounding space.

In the present embodiment, by the way that protrusion 120 is arranged on package casing 100, when packaging body 1 is electrically connected to outside When pcb board 2, the protrusion 120 offsets with external pcb board 2, limits jointly between package casing 100 and external pcb board 2 Space, and the space due to protrusion 120 presence and be connected to free surrounding space, wet air is not easy to be gathered in envelope Between casing 100 and external pcb board 2.When encountering moist environment or quick temperature changing environment, air can be in package casing 100 and external pcb board 2 defined by flowed between space and free surrounding space, it is not easy to aggregation and form condensation water, to prevent The decline of 2 surface insulation performance of external pcb board, avoids the failure of external 2 circuit of pcb board caused by the formation of condensation water.

The packaging body 1 be component etc. is encapsulated by package casing 100, the package casing 100 play installation, The effects of fixed, sealing, protection.These components are electrically connected to Internal PCB, and Internal PCB is electrically connected to by draw pin 210 External circuit (external pcb board 2) realizes the connection of the circuit and external circuit inside packaging body 1.

At work, the component etc. of encapsulation can give off heat the packaging body 1, therefore the material of the package casing 100 It is chosen as ambroin, the ceramics etc. of high thermal conductivity.

Electrical connection between the component of the Internal PCB for encapsulation etc., external pcb board 2 are external component Carrier, packaging body 1 can be electrically connected on external pcb board 2 by draw pin 210.

Electrical connection as described above, to those skilled in the art, being welded by tin cream or other welding materials is A kind of method of relatively easy realization, similarly hereinafter.

The free surrounding space mean the space defined by between package casing 100 and external pcb board 2 in addition to space, Realize the air circulation in air space with defined by of free surrounding space.

Further, as shown in figure 4, the package casing 100 includes end plate 130 and cover 110, the cover 110 is set The opening 111 for having cavity 112 and being connected to the cavity 112, the end plate 130 are set to described open 111 described in closure Cavity 112；The protrusion 120 is set to the cover 110 or the end plate 130.

In the present embodiment, the cover 110 forms opening 111, described convenient for placing Internal PCB and component etc. Cover 110 and the end plate 130, which combine, jointly protects the formation such as Internal PCB, the component being placed in cavity 112. The end plate 130 be set to described open 111, it is to be understood that the end plate 130 can adhesive be bonded by way of with The bonding of cover 110 blocks the cavity 112 to realize, or in 1 encapsulation process of packaging body, in the cavity 112 Embedding Material is perfused in cover 110 by elder generation in interior perfusion Embedding Material, can be with Embedding Material knot when lid sets end plate 130 Close, after potting material cure can fixed charge method end plate 130, or by the way that draw pin 210 is combined with the injection molding of end plate 130 thus fixing end Plate 130.Embedding Material can be polyurethane, silica gel, epoxy resin.

Further, the packaging body 1 further include:

Internal PCB (not shown), the Internal PCB are set in the cavity 112；

Draw pin 210, one end of the draw pin 210 are electrically connected to the Internal PCB, and the other end runs through the end plate 130, For being electrically connected with external pcb board 2.In the present embodiment, the Internal PCB is set in the cavity 112, can pass through glue Hydropexis can also be realized by the cavity wall of Internal PCB and cavity 112 interference fit and be fixed, the present embodiment is not in cavity It limits.

Further, it is convex that the degree that the protrusion 120 protrudes the package casing 100 can be more than or less than draw pin 210 The degree of the package casing 100 out.When the degree that protrusion 120 protrudes is greater than the degree that draw pin 210 is protruded, it is necessary to right The structure of external pcb board 2 is transformed, such as the corresponding position of external pcb board 2 is thickened, to guarantee draw pin 210 and outside The connection of pcb board 2 can also prevent package casing 100 to be bonded with outside pcb board 2 simultaneously, but since this mode is related to pair External pcb board 2 carries out the transformation of structure, increases cost.Therefore, in the present embodiment, as shown in figure 5, along the draw pin 210 Direction, the size of the protrusion 120 is less than the size that the draw pin 210 protrudes from the position of the end plate 130.Work as draw pin When 210 end is electrically connected to external pcb board 2, protrusion 120 offsets with external pcb board 2, plays the work of positioning and carrying With.When the protrusion 120 and external pcb board 2 offset, the end of draw pin 130 is embedded in the corresponding welding of external pcb board 2 Position will not be embedded in excessive or be embedded in very few and lead to rosin joint, and in the welding process, protrusion 120 plays carrying encapsulation The effect of shell 100, so that welding is easy to carry out.

Since the draw pin 210 will run through the end plate 130, by the way that protrusion 120 is set to the cover 110, To facilitate processing.

Further, the protrusion 120 is set to the root edge of the open 111 corresponding cover 110.In this implementation In example, protrusion 120 is set to the root edge of the cover 110, in order to the bottom of package casing 100 and external pcb board 2 it Between form space, and the occupancy to volume can be reduced in a limited space.

In one embodiment, the protrusion 120 is set to the end plate 130.It according to different requirements, can also be by protrusion 120 are set to the end plate 130.Further, the protrusion 120 is set to the edge of the end plate 130.By that will protrude Portion 120 is set to the edge of end plate 130, and the arrangement to draw pin 210 is avoided to impact.

Further, the protrusion 120 is molded as one with the end plate 130 or the cover 130.In the present embodiment In, protrusion 120 and end plate 130 or cover 110 are molded as one, avoid the need for that protrusion 120 is individually connected to end plate 130 or cover 110, molding obtains simultaneously in 110 manufacturing process of end plate 130 or cover, improves production efficiency.It is understood that It is to be molded as one including being realized by injection molding process realization or sintering forming process.

In one embodiment, the package casing 100 include cover 110, the cover be equipped with cavity 112 and with it is described The opening 111 that cavity 112 is connected to, the protrusion 120 are set to the root edge of the open 111 corresponding cover 110.At this It is unlike the embodiments above in embodiment, it is not provided with end plate, reduces cost, it is same by the way that protrusion 120 is arranged in cover 110 It is avoided that the formation of condensation water.Further, the packaging body 1 further include: Internal PCB, the Internal PCB are set to described In cavity 112；Draw pin 210, one end of the draw pin 210 are electrically connected to the Internal PCB, and the other end is in described open 111 Protrusion, for being electrically connected with external pcb board 2.Along the direction of the draw pin 210, the size of the protrusion 130 is less than described draw Needle 210 protrudes from the size at open 111 position.

Further, as shown in Figures 1 to 7, the cover 110 is rectangular parallelepiped structure, and the protrusion 120 is set to described Cover 110, and it is located at the corner of the root edge of the cover 110.In the present embodiment, cuboid knot is set by cover 110 Structure maximally utilizes the space that cavity is surrounded to adapt to the topology requirement of Internal PCB.Furthermore protrusion 120 is set to institute The corner of the root edge of cover 110 is stated, namely in the present embodiment, the quantity of the protrusion 120 is four, is distributed in cover The corner of 110 root edge has biggish space between adjacent protrusion 120, so that air is easier to flow, into One step avoids the aggregation of humid air.

Further, in the present embodiment, the height of the protrusion is 0.8~3.5mm.By adjusting the protrusion 120 height, to ensure to be not take up excessive volume under the premise of prevent the formation of condensation water, this highly can for 0.8mm, 1.3mm, 1.9mm, 2.4mm, 2.7mm, 3.1mm or 3.5mm.

Further, the protrusion 120 includes the first protruding part 121 and the second protruding part 122 of intersection connection, described First protruding part 121 and second protruding part 122 are connected to the corner of the root edge of the cover 110.In the present embodiment, It is in the first protruding part 121 and the second protruding part 122,122 phase of the first protruding part 121 and the second protruding part by the setting of protrusion 120 Setting is handed over, is adapted with the corner of the root edge of cover 110, therefore when packaging body 1 is installed on external pcb board 2, the protrusion 120 presence can guarantee four corners of cover 110 consistent namely package casing 100 and outer at a distance from external pcb board 2 The distance of portion's pcb board 2 is consistent, avoids the skew of local packaging body 1.In addition, the protrusion 120 is guaranteeing package casing 100 While supportting effect, can take into account between package casing 100 and external pcb board 2 defined by sky between space and exterior space Air-flow is logical.

Further, the packaging body 1 further includes component, and the component is set in the cavity 112 and is electrically connected To the Internal PCB.Different types of component may be selected according to the difference of the specification of packaging body.

The invention also discloses a kind of switch power module, the switch power module includes encapsulation as described above Body 1.

Switch power module is that the discrete component in Switching Power Supply is carried out modularized encapsulation, to form volume more Small, the higher modular power source of power density.Since this switch power module includes whole skills of all embodiments as described above Art scheme, therefore at least all beneficial effects brought by the technical solution with embodiment as described above, herein no longer one by one It repeats.

Further, can refer to switch power module in the prior art, set by component include transformer, electricity One of sense, electrolytic capacitor are a variety of.

The invention also discloses a kind of PCB module, the PCB module includes external pcb board 2 and is electrically connected to outer Switch power module on portion's pcb board 2, the switch power module are switch power module as described above.The present embodiment is adopted Own with whole technical solutions of above-mentioned all embodiments, therefore at least brought by the technical solution with above-described embodiment Beneficial effect, this is no longer going to repeat them.

The invention also discloses a kind of air conditioner, the air conditioner includes PCB module as described above.The present embodiment Using whole technical solutions of above-mentioned all embodiments, therefore at least institute brought by the technical solution with above-described embodiment There is beneficial effect, this is no longer going to repeat them.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (15)

1. a kind of packaging body, for being electrically connected with external pcb board, the packaging body includes package casing, which is characterized in that described Package casing is equipped with protrusion, and the protrusion with external pcb board for offseting, so that the package casing and external pcb board Between defined by space be connected to free surrounding space.

2. packaging body as described in claim 1, which is characterized in that the package casing includes cover, and the cover, which is equipped with, to be held Chamber and the opening being connected to the cavity, the protrusion are set to the root edge of the corresponding cover of the opening.

3. packaging body as claimed in claim 2, which is characterized in that the packaging body further include:

Internal PCB, the Internal PCB are set in the cavity；

Draw pin, one end of the draw pin are electrically connected to the Internal PCB, and the other end is used for and outside in the open protrusion Pcb board electrical connection.

4. packaging body as claimed in claim 3, which is characterized in that along the length direction of the draw pin, the ruler of the protrusion The size at the very little position that the opening is protruded from less than the draw pin.

5. packaging body as described in claim 1, which is characterized in that the package casing includes end plate and cover, the cover Equipped with cavity and the opening being connected to the cavity, the end plate is set to the opening to block the cavity；The protrusion Portion is set to the cover or the end plate.

6. packaging body as claimed in claim 5, which is characterized in that the packaging body further include:

Internal PCB, the Internal PCB are set in the cavity；

Draw pin, one end of the draw pin are electrically connected to the Internal PCB, and the other end runs through the end plate, are used for and exterior PC B Plate electrical connection.

7. packaging body as claimed in claim 6, which is characterized in that along the direction of the draw pin, the size of the protrusion is small The size at the position of the end plate is protruded from the draw pin.

8. packaging body as claimed in claim 5, which is characterized in that when the protrusion is set to the end plate, the protrusion Portion is set to the edge of the end plate；

When the protrusion is set to the cover, the protrusion is set to the root edge of the corresponding cover of the opening.

9. packaging body as claimed in claim 5, which is characterized in that the protrusion is shaped to the end plate or the cover One.

10. the packaging body as described in claim 2 or 5, which is characterized in that the cover is rectangular parallelepiped structure, the protrusion Set on the cover, and it is located at the corner of the root edge of the corresponding cover of the opening；

And/or the height of the protrusion is 0.8~3.5mm.

11. packaging body as claimed in claim 10, which is characterized in that the protrusion includes the first protruding part of intersection connection With the second protruding part, first protruding part and second protruding part are connected to the corner of the root edge of the cover.

12. the packaging body as described in claim 2 or 5, which is characterized in that the packaging body further includes component, the member device Part is set in the cavity and is electrically connected to the Internal PCB；

Or, the packaging body further includes component, the component is set in the cavity and is electrically connected to the internal PCB Plate；The component includes one of transformer, inductance, electrolytic capacitor or a variety of.

13. a kind of switch power module, which is characterized in that the switch power module includes any one of claims 1 to 12 The packaging body.

14. a kind of PCB module, which is characterized in that the PCB module includes external pcb board and is electrically connected on external pcb board Switch power module, the switch power module be claim 13 described in switch power module.

15. a kind of air conditioner, which is characterized in that the air conditioner includes PCB module described in claim 14.