CN207460114U - A kind of empty deep encapsulating structure of crystal oscillator - Google Patents
A kind of empty deep encapsulating structure of crystal oscillator Download PDFInfo
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- CN207460114U CN207460114U CN201820237363.0U CN201820237363U CN207460114U CN 207460114 U CN207460114 U CN 207460114U CN 201820237363 U CN201820237363 U CN 201820237363U CN 207460114 U CN207460114 U CN 207460114U
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- encapsulating
- pcb board
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- crystal oscillator
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Abstract
The utility model is related to a kind of crystal oscillators with empty deep encapsulating structure, including：The u-bracket that is fixed on pcb board, the encapsulating shell for encapsulating u-bracket and quartz crystal slice, the encapsulating shell bottom end opening, the pcb board is equipped at least one groove for encapsulating shell insertion, which is strip, and the part u-bracket is located at the inner cavity of encapsulating shell.It is reliably welded or is pasted in the rectangle trench structure that the u-bracket of the utility model can be reserved directly on pcb board, reduce one section of height of conventional stent stem, pre-groove also effectively reduces length of the crystal oscillator welding on pcb board on pcb board simultaneously, so as to effectively reduce the volume of crystal resonator and combinations thereof.
Description
Technical field
The utility model belongs to quartz-crystal resonator installing area, and in particular to a kind of empty deep encapsulating structure of crystal oscillator.
Background technology
Common quartz crystal slice mount structure is Fig. 1-coil structures shown in Fig. 3, wherein, the both ends of the structure are
2-3 coil spring circles, to be straight dry, one end is welded on metallic support for centre, and the other end is used to fix quartz crystal slice.Common quartz
The effective height size that crystal resonator is welded on pcb board is：10mm or so.
In order to meet the needs of quartz-crystal resonator, quartz-crystal filter and its Related product minimize, it is badly in need of carrying
For a kind of for pcb board, for encapsulating the deep encapsulating structure of the sky of crystal oscillator.
The content of the invention
In order to meet the needs of quartz-crystal resonator miniaturization, the utility model provides a kind of empty deep encapsulation of crystal oscillator
Structure.The technical problems to be solved in the utility model is achieved through the following technical solutions：
A kind of empty deep encapsulating structure of crystal oscillator, including：The u-bracket that is fixed on pcb board, for encapsulate u-bracket and
The encapsulating shell of quartz crystal slice, the encapsulating shell bottom end opening, the pcb board are equipped with for at least one recessed of encapsulating shell insertion
Slot, the groove are strip, and the part u-bracket is located at the inner cavity of encapsulating shell；
The u-bracket includes：For clamping the two of quartz crystal slice frame bodies being oppositely arranged, which includes fixing
Bottom plate on pcb board, the U-board for being inserted and fixed quartz crystal slice, the bending section of the U-board, which has, to be extended downwardly
To the support portion of bottom plate, which can realize being fixedly connected for bottom plate and U-board.
A kind of empty deep encapsulating structure of above-mentioned crystal oscillator, the U-board include the bending section vertically stretched, from curved
Two ends of pars convoluta horizontally extending the first plate body and the second plate body are formed between the first plate body and the second plate body and supplied
The cavity of quartz crystal slice insertion.
A kind of empty deep encapsulating structure of above-mentioned crystal oscillator is equipped with fabrication hole on first plate body and the second plate body.
A kind of empty deep encapsulating structure of above-mentioned crystal oscillator, the pcb board are equipped with to weld the copper foil pad of bottom plate, institute
It states bottom plate and is equipped with the through hole passed through for filler, solder or conducting resinl.
A kind of empty deep encapsulating structure of above-mentioned crystal oscillator, the height of the U-board are at least common or standard packaging stone
The 1/2 of English crystal wafer height.
A kind of empty deep encapsulating structure of above-mentioned crystal oscillator, is additionally provided with encapsulated layer, the encapsulation between the encapsulating shell and groove
Layer is tin sealing or adhesive layer.
The beneficial effects of the utility model：
It is reliably welded in the rectangle trench structure that the u-bracket of the utility model can be reserved directly on pcb board
It connects or pastes, reduce one section of height of conventional stent stem, while pre-groove also effectively reduces crystal oscillator weldering on pcb board
The length being connected on pcb board, so as to effectively reduce the volume of crystal resonator and combinations thereof.
The utility model is described in further details below with reference to accompanying drawings and embodiments.
Description of the drawings
Fig. 1 is the front schematic view of ball spring coil.
Fig. 2 is the side schematic view of ball spring coil.
Fig. 3 is the mount structure schematic diagram of ball spring coil.
Fig. 4 is the decomposition diagram of empty deep encapsulating structure.
Fig. 5 is pcb board and the structure diagram of u-bracket installation.
Fig. 6 is the positive structure schematic of u-bracket.
Fig. 7 is the dimensional structure diagram of u-bracket.
Fig. 8 is the top view of u-bracket.
Fig. 9 is the u-bracket structure diagram loaded onto after quartz wafer.
Figure 10 is the structure diagram that empty deep encapsulating structure cuts open along the horizontal plane.
Figure 11 is the structure diagram that empty deep encapsulating structure diagonally cuts open.
Figure 12 is the structure diagram that multiple quartz crystal slices are encapsulated in same encapsulating shell.
In figure：100th, ball spring coil；1st, pcb board；11st, copper foil pad；12nd, groove；2nd, quartz crystal slice；3rd, frame body；
31st, bottom plate；32nd, U-board；32-1, bending section；32-2, the first plate body；32-3, the second plate body；33rd, support portion；4th, solder；5、
Encapsulating shell.
Specific embodiment
For the technological means and effect that the utility model is reached predetermined purpose and taken is expanded on further, below in conjunction with attached drawing
And embodiment, to specific embodiment of the present utility model, structure feature and its effect, detailed description are as follows.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For the limitation to the utility model.
In addition, term " first ", " second ", " the 3rd " etc. are only used for description purpose, and it is not intended that instruction or hint
Relative importance or the implicit quantity for indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can express or implicitly include one or more this feature.In the description of the utility model, unless otherwise indicated,
" multiple " are meant that two or more.
Term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or removable
It unloads connection or is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
Common 2 mount structure of quartz crystal slice is coil structures, and both ends are 2-3 coil spring circles, and centre is straight dry, one
End is welded on metallic support, and for the other end for fixing quartz crystal slice 2, structure is shown in attached drawing 1, Fig. 2 and Fig. 3, common quartz-crystal
Body resonator is welded on pcb board 1, realizes that the effective height size in the case of certain function is under equal projected area：
10mm or so.
In order to meet the needs of quartz-crystal resonator miniaturization, a kind of empty deep encapsulation knot of crystal oscillator is present embodiments provided
Structure, as shown in figure 4, including：The u-bracket that is fixed on pcb board, the encapsulating shell for encapsulating u-bracket and quartz crystal slice 2
5,5 bottom end opening of encapsulating shell, pcb board is equipped at least one groove 12 being inserted into for encapsulating shell 5, which is strip
Shape, u-bracket are located at the inner cavity of encapsulating shell 5；
With reference to Fig. 5-Figure 11, the u-bracket of the present embodiment includes clamping two of quartz crystal slice 2 and is oppositely arranged
Frame body 3, the frame body 3 include the bottom plate 31 for being fixed on 1 upper surface of pcb board, the U-board for being inserted and fixed quartz crystal slice 2
32, the bending section 32-1 of U-board 32 have the support portion 33 for extending downward into bottom plate 31, which can realize 31 He of bottom plate
U-board 32 is fixedly connected.
Specifically, U-board 32 includes the bending section 32-1 vertically stretched, from two ends edge of bending section 32-1
The the first plate body 32-2 and the second plate body 32-3 of horizontal direction extension are formed between the first plate body 32-2 and the second plate body 32-3 and supplied
The cavity that quartz crystal slice 2 is inserted into is equipped with fabrication hole on the first plate body 32-2 and the second plate body 32-3, which is used for increasing
Circulation and the area of big solder or conducting resinl and quartz crystal slice.Preferably, it also is provided on bottom plate 31 for filler, solder or led
The through hole that electric glue passes through.
It may be noted that as the case may be, in the present embodiment, on bottom plate 31, the first plate body 32-2 and the second plate body 32-3
Fabrication hole can not also be set.
Chip can be directly fixed on by u-bracket on pcb board, then fixed to single or multiple by u-bracket
Chip be packaged, empty deep slot processing is first carried out in the corresponding position of pcb board and opens up groove 12, arrangement needs fixed brilliant
Piece or the position of chip combination.The deep encapsulating structure of sky of the present embodiment, directly reduces 5mm by the height that crystal oscillator or crystal oscillator combine
Left and right, simultaneously for crystal oscillator and combinations thereof product, achievees the purpose that effectively reduce volume.
The deep encapsulating structure of sky of the present embodiment, concrete technology are：Pcb board is first made, it is long according to design crystal oscillator and combinations thereof
Wide demand reserves a rectangular groove 12 in the corresponding position of pcb board, and 12 internal reservation of groove has U-bracket position,
U-bracket is first welded or is pasted onto on pcb board, then quartz crystal slice is inserted on U-bracket, then carries out dispensing, dry
The processes such as roasting, whole process are completed by quartz-crystal resonator technical process, and encapsulating shell 5 finally is inserted into pcb board corresponding female
In slot 12, handled using tin envelope or bonding, by taking tin seals as an example：Encapsulating shell 5 is inserted into the corresponding trench structure of pcb board, it will be whole
A pcb board tilts 45 degree of angles or so, is packaged with electric iron, first encapsulates two short sides, then encapsulates any one long side again, so
It is tested afterwards on the corresponding testing weld pad of the pcb board of the encapsulation, in the case for the treatment of that each crystal oscillator is normally functioning, to packaged
The entire pcb board on three sides carries out filling mental disorder processing.Then the encapsulation on the 4th side is carried out, at this moment, the empty deep construction packages of entire pcb board
Technique is completed.
As shown in figure 12, multiple quartz crystal slices 2, multiple quartz-crystals can be placed in an encapsulating shell 5 of the present embodiment
Body piece 2 is fixed on by two frame bodies on pcb board respectively.
The deep encapsulating structure of sky of the present embodiment, simple in structure, dependable performance can effectively reduce piezoelectric material component and group
The volume of part, and its performance is made not change.
And the effective height after the u-bracket installation quartz-crystal resonator of the present embodiment is：5mm, directly height are reduced
5mm, the concrete operation method of the present embodiment u-bracket：U-bracket is first welded or is pasted onto what is reserved in advance on pcb board 1
On copper foil pad 11, quartz crystal slice 2 is then inserted into this U-shaped and is shelved, then carry out the processes such as dispensing, baking, it is whole
A process is completed by quartz-crystal resonator technical process, sealing treatment is finally carried out, so that quartz-crystal resonator, quartz
The height dimension of crystal filter and its Related product is greatly lowered.
The u-bracket of the present embodiment and common mount structure（Spring ring）It compares, convenient for welding in the plane, that is, can
Directly reliably to be welded or pasted on the reserved pad of pcb board 1, ball spring coil is straight due to bottom coil structures
Being connected on pcb board 1 reliably can not weld or paste, therefore the present invention uses bottom plane structure, is so effectively contacted with pcb board 1,
The increase of contact area, convenient for welding and greatly improving soldering reliability.
The U-shaped structure of u-bracket can effectively play the role of fixed quartz crystal slice 2, and intermediate aperture makes subsequently
Point glue process reliability improves, while decreases one section of height gauge that old-fashioned spring ring bottom is welded on support lead column
It is very little, effectively reduce quartz-crystal resonator height dimension.
The u-bracket function admirable of the present embodiment, it is simple in structure, it can effectively reduce the height of piezoelectric material component and component
Spend size.U-bracket can effectively reduce the height dimension of quartz-crystal resonator, and quartz crystal is effectively reduced so as to reach
The purpose of wave filter and its subassembly product height dimension is quartz-crystal resonator, quartz-crystal filter and its Related product
Miniaturization lay the foundation.
The above content is combine specific preferred embodiment further detailed description of the utility model, it is impossible to
Assert that the specific implementation of the utility model is confined to these explanations.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, several simple deduction or replace can also be made, should all be regarded
To belong to the scope of protection of the utility model.
Claims (6)
1. a kind of empty deep encapsulating structure of crystal oscillator, which is characterized in that including：The u-bracket that is fixed on pcb board, for encapsulating U
Type stent and quartz crystal slice（2）Encapsulating shell（5）, the encapsulating shell（5）Bottom end opening, the pcb board are equipped with for encapsulating shell
（5）At least one groove of insertion（12）, the groove（12）For strip, the u-bracket is located at encapsulating shell（5）Inner cavity；
The u-bracket includes：For clamping quartz crystal slice（2）Two frame bodies being oppositely arranged（3）, the frame body（3）Bag
It includes and is fixed on pcb board（1）On bottom plate（31）, for being inserted and fixed quartz crystal slice（2）U-board（32）, the U-board
（32）Bending section（32-1）With extending downward into bottom plate（31）Support portion（33）, the support portion（33）Bottom plate can be achieved
（31）And U-board（32）Be fixedly connected.
2. the empty deep encapsulating structure of crystal oscillator as described in claim 1, which is characterized in that the U-board（32）Including along vertical
The bending section that direction stretches（32-1）, from bending section（32-1）Horizontally extending the first plate body in two ends（32-2）
With the second plate body（32-3）, the first plate body（32-2）With the second plate body（32-3）Between formed for quartz crystal slice（2）Insertion
Cavity.
3. the empty deep encapsulating structure of crystal oscillator as claimed in claim 2, which is characterized in that first plate body（32-2）With second
Plate body（32-3）On be equipped with fabrication hole.
4. the empty deep encapsulating structure of crystal oscillator as described in claim 1, which is characterized in that the pcb board（1）It is equipped with to weld
Connect bottom plate（31）Copper foil pad（11）, the bottom plate（31）It is equipped with the through hole passed through for filler, solder or conducting resinl.
5. such as claim 1-4 any one of them crystal oscillator deep encapsulating structure of sky, which is characterized in that the U-board（32）'s
Highly it is at least the 1/2 of common or standard packaging quartz crystal slice height.
6. the empty deep encapsulating structure of crystal oscillator as described in claim 1, which is characterized in that the encapsulating shell（5）With groove（12）
Between be additionally provided with encapsulated layer, the encapsulated layer be tin sealing or adhesive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237363.0U CN207460114U (en) | 2018-02-10 | 2018-02-10 | A kind of empty deep encapsulating structure of crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820237363.0U CN207460114U (en) | 2018-02-10 | 2018-02-10 | A kind of empty deep encapsulating structure of crystal oscillator |
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| Publication Number | Publication Date |
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| CN207460114U true CN207460114U (en) | 2018-06-05 |
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ID=62275991
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820237363.0U Active CN207460114U (en) | 2018-02-10 | 2018-02-10 | A kind of empty deep encapsulating structure of crystal oscillator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149103A (en) * | 2018-02-10 | 2019-08-20 | 咸阳振峰电子有限公司 | A kind of empty deep encapsulating structure of crystal oscillator |
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2018
- 2018-02-10 CN CN201820237363.0U patent/CN207460114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149103A (en) * | 2018-02-10 | 2019-08-20 | 咸阳振峰电子有限公司 | A kind of empty deep encapsulating structure of crystal oscillator |
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