CN201403081Y - Electronic oscillator - Google Patents
Electronic oscillator Download PDFInfo
- Publication number
- CN201403081Y CN201403081Y CN2009200707943U CN200920070794U CN201403081Y CN 201403081 Y CN201403081 Y CN 201403081Y CN 2009200707943 U CN2009200707943 U CN 2009200707943U CN 200920070794 U CN200920070794 U CN 200920070794U CN 201403081 Y CN201403081 Y CN 201403081Y
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- layer printed
- following layer
- resonant crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Oscillators With Electromechanical Resonators (AREA)
Abstract
The utility model discloses an electronic oscillator which comprises an upper layer printed circuit board, a lower layer printed circuit board, a baseplate, a resonance crystal and a casing. The lowerlayer printed circuit board and the upper layer printed circuit board are electrically connected with and propped against each other through a lead wire; the baseplate and the lower layer printed circuit board are electrically connected with and propped against each other through a lead wire; the resonance crystal is clamped between the upper layer printed circuit board and the lower layer printed circuit board; the upper layer printed circuit board, the lower layer printed circuit board and the resonance crystal are accommodated in the casing hermetically; and a positioning groove for accommodating and positioning the resonance crystal is formed on at least one of the upper layer printed circuit board and the lower layer printed circuit board. Compared with the prior art, the positioninggroove for accommodating and positioning the resonance crystal is formed on at least one of the upper layer printed circuit board and the lower layer printed circuit board, so that the utility modelhas the advantages of reliable positioning and easy replacement.
Description
Technical field
The utility model relates to a kind of electro coupled oscillator.
Background technology
Electro coupled oscillator (Oven Controlled Crystal Oscillator) comprises printed circuit board (PCB) and resonant crystal.Because resonant crystal must be worked under stationary temperature.Therefore must be provided with heater element on the printed circuit board (PCB), be used for the temperature of resonant crystal is regulated, make it under constant temperature, to work.In the prior art, resonant crystal generally sticks on the heater element by binding agent.But there is the aging easily problem that comes off in binding agent, and causes the position of resonant crystal unfixing, is offset out the thermal treatment zone easily, is difficult to regulate the working temperature of resonant crystal then.Another shortcoming of using binding agent is dismounting inconvenience, can not arbitrarily change resonant crystal.
The utility model content
Therefore, the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, reliable, the stable height in a kind of resonant crystal location is provided and changes electro coupled oscillator easily.
To achieve these goals, the technical solution of the utility model provides a kind of electro coupled oscillator, comprising: upper printed circuit board; Following layer printed circuit board is electrically connected and supports by lead-in wire between described layer printed circuit board down and the upper printed circuit board; Base plate is electrically connected and supports by lead-in wire between described base plate and the following layer printed circuit board; Resonant crystal, described resonant crystal are clamped between upper printed circuit board and the following layer printed circuit board; And housing, described housing is used for holding hermetically upper printed circuit board, the following layer printed circuit board harmony crystal that shakes, and wherein, at least one in upper printed circuit board and the following layer printed circuit board is provided with the location notch that holds and locate resonant crystal.
Preferably, upper printed circuit board is supported on down on the layer printed circuit board by lead-in wire with suspending.
Preferably, following layer printed circuit board is supported on the base plate by lead-in wire with suspending.
Preferably, be parallel to each other in twos between upper printed circuit board, following layer printed circuit board and the base plate.
Preferably, upper printed circuit board and following layer printed circuit board all are printed with the resistor heats district, and resonant crystal is clamped between two resistor heats districts.
Compared with prior art, advantage of the present utility model is:
1. because at least one in upper printed circuit board and the following layer printed circuit board is provided with the location notch that holds and locate resonant crystal, therefore, resonant crystal can be fixed on the thermal treatment zone reliably, and can arbitrarily change as required;
2. upper printed circuit board and following layer printed circuit board are provided with the thermal treatment zone, therefore, can heat resonant crystal from the two sides simultaneously, thereby working temperature that can the quick adjustment resonant crystal;
3. upper printed circuit board and following layer printed circuit board are supported on the base plate by a plurality of leads with suspending, do not contact with base plate, therefore improve heat-insulating property, prevent that resonant crystal is subjected to the influence of ambient temperature.
Description of drawings
Fig. 1 is the perspective view of electro coupled oscillator of the present utility model;
Fig. 2 is the longitudinal sectional view of electro coupled oscillator of the present utility model;
Fig. 3 is the longitudinal sectional view of the following layer printed circuit board of electro coupled oscillator of the present utility model; With
Fig. 4 is the longitudinal sectional view of the electro coupled oscillator of the present utility model when installing shell.
Embodiment
Describe embodiment of the present utility model below in detail, the example of embodiment is shown in the drawings, and wherein same or analogous label is represented same or analogous element.The embodiment that describes below with reference to accompanying drawing is exemplary, is intended to explain the present invention, and can not be interpreted as limitation of the present invention.
Fig. 1 shows the perspective view of electro coupled oscillator of the present utility model; Fig. 2 shows the longitudinal sectional view of electro coupled oscillator of the present utility model; Fig. 3 shows the longitudinal sectional view of the following layer printed circuit board of electro coupled oscillator of the present utility model; Longitudinal sectional view with the of the present utility model electro coupled oscillator of Fig. 4 demonstration when installing shell.
As Fig. 1-shown in Figure 4, electro coupled oscillator of the present utility model comprises: upper printed circuit board 1; Following layer printed circuit board 2 is electrically connected and supports by lead-in wire 7 between following layer printed circuit board 2 and the upper printed circuit board 1; Base plate 3 is electrically connected and supports by lead-in wire 8 between base plate 3 and the following layer printed circuit board 2; Resonant crystal 4, resonant crystal 4 are clamped between upper printed circuit board 1 and the following layer printed circuit board 2; With housing 9, housing 9 is used for holding hermetically upper printed circuit board 1, following layer printed circuit board 2 and resonance crystal 4, wherein, is being provided with the location notch 2a that holds and locate resonant crystal 4 in the layer printed circuit board 2 down.
But, need to prove, also can in upper printed circuit board 1, be provided with the location notch that holds and locate resonant crystal 4, perhaps in upper printed circuit board 1 and following layer printed circuit board 2, be provided with the location notch that holds and locate resonant crystal 4.That is, can upper printed circuit board 1 and following layer printed circuit board 2 at least one be provided with the location notch that holds and locate resonant crystal 4.
In the utility model, upper printed circuit board 1 is supported on down on the layer printed circuit board 2 by 7 quilts that go between with suspending.Lead-in wire is 7 not only as electrical connecting wire, and as the limited part of relative position between restriction upper printed circuit board 1 and the following layer printed circuit board 2, is separated from each other and causes resonant crystal 4 to come off so that prevent upper printed circuit board 1 and following layer printed circuit board 2.
In the utility model, following layer printed circuit board 2 is supported on the base plate 3 by 8 quilts that go between with suspending, thereby forms insulating air layer, thereby prevents external environment influence resonant crystal 4.
In the utility model, be parallel to each other in twos between upper printed circuit board 1, following layer printed circuit board 2 and the base plate 3.But, need to prove that the utility model is not limited to this, can not be parallel to each other in twos between upper printed circuit board 1, following layer printed circuit board 2 and the base plate 3 yet.
In the utility model, upper printed circuit board 1 and following layer printed circuit board 2 all are printed with the resistor heats district, and resonant crystal 4 is clamped between two resistor heats districts.Owing to can heat from the two sides, therefore, working temperature that can quick adjustment resonant crystal 4.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that under the situation that does not break away from principle of the present utility model and spirit and can change that scope of the present utility model is limited by claims and equivalent thereof to these embodiment.
Claims (5)
1. electro coupled oscillator comprises:
Upper printed circuit board (1);
Following layer printed circuit board (2) is electrically connected and supports by lead-in wire (7) between described layer printed circuit board (2) down and the upper printed circuit board (1);
Base plate (3), described base plate (3) and the described lead-in wire (8) that passes through between the layer printed circuit board (2) down are electrically connected and support;
Resonant crystal (4), described resonant crystal (4) are clamped in described upper printed circuit board (1) and described down between the layer printed circuit board (2); With
Housing (9), described housing (9) are used for holding hermetically upper printed circuit board (1), following layer printed circuit board (2) and resonant crystal (4), it is characterized in that:
In described upper printed circuit board (1) and the following layer printed circuit board (2) at least one is provided with the location notch (2a) that holds and locate resonant crystal (4).
2. electro coupled oscillator according to claim 1 is characterized in that: described upper printed circuit board (1) is supported on the described layer printed circuit board (2) down by lead-in wire (7) with suspending.
3. electro coupled oscillator according to claim 1 and 2 is characterized in that: described layer printed circuit board (2) down is supported on the described base plate (3) by lead-in wire (8) with suspending.
4. electro coupled oscillator according to claim 1 is characterized in that: be parallel to each other in twos between described upper printed circuit board (1), following layer printed circuit board (2) and the base plate (3).
5. electro coupled oscillator according to claim 1 is characterized in that: described upper printed circuit board (1) and following layer printed circuit board (2) all are printed with the resistor heats district, and described resonant crystal (4) is clamped between two resistor heats districts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200707943U CN201403081Y (en) | 2009-04-21 | 2009-04-21 | Electronic oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200707943U CN201403081Y (en) | 2009-04-21 | 2009-04-21 | Electronic oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201403081Y true CN201403081Y (en) | 2010-02-10 |
Family
ID=41662880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200707943U Expired - Fee Related CN201403081Y (en) | 2009-04-21 | 2009-04-21 | Electronic oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201403081Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394589A (en) * | 2011-10-09 | 2012-03-28 | 台州雅晶电子有限公司 | Device used for positioning crystal oscillator and support |
-
2009
- 2009-04-21 CN CN2009200707943U patent/CN201403081Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394589A (en) * | 2011-10-09 | 2012-03-28 | 台州雅晶电子有限公司 | Device used for positioning crystal oscillator and support |
| CN102394589B (en) * | 2011-10-09 | 2014-02-12 | 浙江雅晶电子有限公司 | Device used for positioning crystal oscillator and support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20120421 |