CN204334516U - A kind of crystal oscillator vibration absorber based on flexible strip - Google Patents
A kind of crystal oscillator vibration absorber based on flexible strip Download PDFInfo
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- CN204334516U CN204334516U CN201520073182.5U CN201520073182U CN204334516U CN 204334516 U CN204334516 U CN 204334516U CN 201520073182 U CN201520073182 U CN 201520073182U CN 204334516 U CN204334516 U CN 204334516U
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- flexible strip
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Abstract
The utility model discloses a kind of crystal oscillator vibration absorber based on flexible strip, first flexible strip and the second flexible strip are symmetrically arranged in four sides of crystal oscillator respectively, adjusting screw(rod) is connected by screw pair with adjusting nut, and all the other each parts are connected by screw.The utility model realizes vibration-damping function by the first flexible strip and the second flexible strip, the screw mechanism that adjusting screw(rod) and adjusting nut are formed realizes the adjustment of vibration damping rigidity, the spring steel of the first flexible strip and the second flexible strip high-elasticity impact-resistant processes, and can provide good effectiveness in vibration suppression.In addition, compact conformation of the present utility model, flexible strip configuration enriches, and design space is comparatively large, and applicability is wide, and damping property is good, and rigidity is easy to regulate, and high-low temperature resistant is anticorrosive, not easily aging, has very strong practicality and wide application prospect.
Description
Technical field
The utility model belongs to technical field of electronic equipment, particularly relates to a kind of crystal oscillator vibration absorber based on flexible strip.
Background technology
Airborne, carrier-borne, vehicle electronic device needs crystal oscillator to provide high-precision frequency reference for it, and the vibration and impact of matrix greatly can affect the reliability of crystal oscillator work, make it export electric signal characteristic to be deteriorated, phase noise increases, thus cannot meet the requirement as the steady fundamental frequency signal of height; The acceleration sensitive direction of crystal oscillator is also the key factor that design vibration absorber needs to consider simultaneously.Existing rubber ring vibration isolator easily occurs aging, and properties deteriorate after vibration, is not easy to the shortcomings such as adjustment, therefore needs to have redesigned one and is convenient to adjustment, can provide the crystal oscillator vibration absorber of reliable and stable effectiveness in vibration suppression.
Utility model content
The purpose of this utility model is to provide a kind of crystal oscillator vibration absorber based on flexible strip, is intended to solve existing rubber ring vibration isolator and easily occurs aging, properties deteriorate after vibration, is not easy to the problem adjusted.
The utility model realizes like this, a kind of crystal oscillator vibration absorber based on flexible strip, comprise, shell outer catch, upper shell, lower house, lower house base plate, it is characterized in that, the internal structure of this vibration absorber comprises: soft, counterweight under crystal oscillator, circuit board, the first flexible strip, the second flexible strip, adjusting screw(rod), adjusting nut, connector, plate; First flexible strip and the second flexible strip are all the uniform flake structures of thickness, soft two offsides be arranged in below circuit board under connector and plate respectively in a center of symmetryly, first flexible strip and the second flexible strip are symmetrically arranged in four sides of crystal oscillator respectively, and adjusting screw(rod) is connected by screw pair with adjusting nut.
Further, soft, two connectors under two the first flexible strip, two the second flexible strip, two plates, four adjusting screw(rod)s, four adjusting nuts, four outer catch of shells should be set based on crystal oscillator vibration absorber of flexible strip.
Further, also should comprise based on the crystal oscillator vibration absorber setting of flexible strip: circuit board, the first pan head screw, the first sunk screw, counterweight, the second pan head screw, the 3rd pan head screw, the 4th pan head screw, the 5th pan head screw, the second sunk screw, the 3rd sunk screw, the 4th sunk screw;
Connector is connected with the first pan head screw with the through hole of circuit board corner respectively mutually with one end screw of soft under plate; First flexible strip and adjusting nut are at one end connected mutually with the 3rd pan head screw, and the other end is connected mutually with the screwed hole on connector; Second flexible strip and adjusting nut are at one end connected mutually with the 5th pan head screw, and the screwed hole under the other end and plate on soft is connected mutually; Counterweight is connected by the first sunk screw mutually with two connectors; Adjusting screw(rod) is arranged in the coaxial unthreaded hole at upper shell corner place, is assembled in upper shell by the vibration-proof structure of the screw pair of adjusting screw(rod) and adjusting nut; The outer catch of shell is enclosed within the round ladder optical axis that adjusting screw(rod) stretches out outside upper shell, and is connected on the outer wall of upper shell by the second sunk screw; Lower house is connected with upper shell mutually by 3 the 3rd sunk screws, and lower house base plate is connected with lower house mutually by 3 the 4th sunk screws.
Further, adjusting nut and adjusting screw(rod) are matched by screw pair, adjusting nut has two tapped through holes, the screwed hole of vertical direction is in order to be connected mutually with flexible strip, it is secondary that screw thread on the screw of horizontal direction and adjusting screw(rod) forms adjustable screw, the rotary motion of adjusting screw(rod) is converted to the translational motion of nut relative to screw axial.
Further, upper shell and lower house respectively make the asymmetric two parts in four sides, and lower housing section is made up of lower house and lower house base plate again.
Further, counterweight is connected by connector mutually with crystal oscillating circuit plate.
Further, under the first flexible strip, the second flexible strip and the plate that adopt high resiliency and impact-resistant spring steel to make soft.
The beneficial effects of the utility model are:
1, the utility model realizes the adjustment of vibration-proof structure rigidity easily by screw mechanism;
2, the two pairs of flexible strip are arranged in four sides of crystal oscillator, make use of limited space fully, make compact conformation, small volume;
3, the flexible strip of high-elasticity impact-resistant had both had good effectiveness in vibration suppression, and effectively can resist simultaneously and impact thus protection crystal oscillator, compared to former rubber damping scheme, its damping property is better, has anticorrosive simultaneously, not easily aging, high reliability;
4, in the utility model, the special configuration of flexible strip has abundant type selecting space, reaches different rigidity by the shape and size adjusting flexible strip or adapts to the restriction of specific crystal oscillator vibration-proof structure.Therefore applicability is wide, can the space of Optimal improvements large.
Accompanying drawing explanation
Fig. 1 is the first step assembly structure that provides of the utility model embodiment and assembling schematic diagram thereof;
Fig. 2 is the first flexible strip modular construction of providing of the utility model embodiment and assembling schematic diagram thereof;
Fig. 3 is the second flexible strip modular construction of providing of the utility model embodiment and assembling schematic diagram thereof;
Fig. 4 is that the vibration-proof structure that provides of the utility model embodiment and assembling thereof complete design sketch;
Fig. 5 is the stiffness tuning structural representation that the utility model embodiment provides;
In figure: (a) is stiffness tuning structure and assembling schematic diagram thereof; B () is upper shell structure chart; C () is adjusting screw(rod) structure chart;
Fig. 6 is the upper-lower casing that provides of the utility model embodiment and lower house base arrangement and assembling schematic diagram thereof;
Fig. 7 is that the assembling that the utility model embodiment provides completes design sketch;
Fig. 8 is the first flexible strip of the second embodiment that the utility model embodiment provides and the structure chart of the second flexible strip;
In figure: 1, circuit board; 2, crystal oscillator; 3, the first pan head screw; 4, connector; 5, the first sunk screw; 6, counterweight; 7, under plate soft; 8, the second pan head screw; 9, the first flexible strip; 10, adjusting nut; 11, the 3rd pan head screw; 12, the second flexible strip; 13, the 4th pan head screw; 14, the 5th pan head screw; 15, the second sunk screw; 16, the outer catch of shell; 17, adjusting screw(rod); 18, upper shell; 19, the 3rd sunk screw; 20, lower house; 21, lower house base plate; 22, the 4th sunk screw.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.There is not the innovation of method or software in the utility model.
Below in conjunction with drawings and the specific embodiments, application principle of the present utility model is further described.
As Figure 1-Figure 8, the crystal oscillator vibration absorber based on flexible strip of the utility model embodiment mainly comprises: circuit board 1, crystal oscillator 2, first pan head screw 3, connector 4, first sunk screw 5, counterweight 6, under plate soft 7, second pan head screw 8, first flexible strip 9, adjusting nut 10, 3rd pan head screw 11, second flexible strip 12, 4th pan head screw 13, 5th pan head screw 14, second sunk screw 15, the outer catch 16 of shell, adjusting screw(rod) 17, upper shell 18, 3rd sunk screw 19, lower house 20, lower house base plate 21, 4th sunk screw 22,
Under connector 4 and plate soft 7, be arranged in two offsides below circuit board respectively in a center of symmetryly; Counterweight 6 is connected mutually with connector 4; First flexible strip 9 and adjusting nut 10 are at one end connected mutually with the 3rd pan head screw 11, and the other end is connected mutually with the screwed hole on connector 4; Second flexible strip 12 and adjusting nut 10 are at one end connected mutually with the 5th pan head screw 14, and the screwed hole under the other end and plate on soft 7 is connected mutually; Adjusting screw(rod) 17 is contained in the coaxial unthreaded hole at upper shell 18 4 jiaos of places, is assembled in upper shell 18 by adjusting screw(rod) 17 and the screw pair of adjusting nut 10 by the vibration-proof structure of Fig. 4; The outer catch 16 of shell is enclosed within the round ladder optical axis that adjusting screw(rod) 17 stretches out outside upper shell 18, and is connected on the outer wall of upper shell 18 by the second sunk screw 15; In Fig. 6, lower house 20 is connected with upper shell mutually by 3 the 3rd sunk screws 19, and lower house base plate 21 is connected with lower house 20 mutually by 3 the 4th sunk screws 22;
During concrete installation, first according to Fig. 1 by the first pan head screw 3 by under two cover connectors 4 and plate soft 7 in a center of symmetry be connected on the unthreaded hole at circuit board corner place, and be arranged in the back side of crystal oscillator, note, in Fig. 1, circuit board becomes the octagon of symmetrical structure, and the some holes that has opened above is not used; Then counterweight 6 is connected with connector 4 by the first sunk screw 5; The edge of connector 4 should be made after assembling, under plate the edge of soft 7 respectively with four equal shapes in edge of crystal oscillator;
As Fig. 2 assembles the first flexible strip 9 assembly, the 3rd pan head screw 11 is screwed in the vertical screw of adjusting nut 10 through the through hole of first that end of flexible strip 9 shown in figure, the equal shape in edge of the edge of adjusting nut 10 and the first flexible strip 9 be ensured, again by the first empty set of the second pan head screw 8 in the through hole of first flexible strip 9 other end, in order to assembling below, in accompanying drawing 3, the assembling of the second flexible strip 12 assembly roughly the same, assemble two cover the second flexible strip assemblies are connected mutually by the 4th pan head screw 13 and the screw of soft 7 ends under plate, then assemble two cover the first flexible strip 9 assemblies are connected mutually by the second pan head screw 8 and connector 4 screw, to check after tightening screw whether each flexible strip parallels with each limit of crystal oscillator respectively, check whether the spacing of each flexible strip and crystal oscillator four side is 3.25mm and uniformity simultaneously, this stays enough flexible strip to vibrate the space of deformation to ensure, if spacing departs from or there is flexible strip and crystal oscillator edge is not parallel, then need to adjust, due to the diameter 0.2mm larger than screw external diameter of the flexible strip two ends through hole of design, therefore be enough used for compensating by it the spacing that the assembling that causes of mismachining tolerance occurs afterwards to depart from,
After more than assembling has been carried out, the assembling of vibration-proof structure has completed, now as shown in Figure 4; Vibration-proof structure is seated in two anisometric coaxial unthreaded holes at upper shell corner place, as shown in (a), (b) and (c) in accompanying drawing 5 by four adjusting screw(rod)s 17 respectively below; Four adjusting screw(rod)s 17 are screwed respectively through the screwed hole of adjusting nut 10 being positioned at vibration-proof structure corner, the segment optical axis of adjusting screw(rod) 17 end of thread is arrived in the little unthreaded hole of upper shell 18 inside, then outer for four shells catch 16 is enclosed within the little optical axis section of adjusting screw(rod) 17 other end cylinder multidiameter, outside upper shell 18, tightens the second sunk screw 15 outer for shell catch 16 is fastened on outside upper shell 18; In assembling process each adjusting screw(rod) 17 all rotate be encased in upper shell 18 inside after also need constantly by rotating with the position of adjusting nut 10 on adjusting screw(rod) 17, after making initial assembling with this, each flexible strip is not by assembly prestress; Some adjusting screw(rod) 17 meeting autorotation in vibration processes is found when testing, therefore be necessary that outside shell, add shim liner between catch 16 and adjusting nut 10 can be cut into internal diameter 4mm with plastic tab,, after tightening sunk screw like this, this phenomenon would not be there is in the ring segment of external diameter 7.5mm;
Wire bonding on circuit board is good and electrical interface by outside screw fastening to upper and lower shell, be affixed on upper shell 18 as shown in Figure 6 by lower house 20 by the 3rd sunk screw 19, lower house base plate 21 is affixed on lower house 20 by sunk screw; After having assembled as shown in Figure 7, crystal oscillator electrical interface and wire thereof is not drawn here;
It should be noted that, the place be connected by screw in above assembling process, in order to prevent screw in vibration processes from getting loose, needing to adopt spring washer or smear at screw thread place to loosen agent.
Specific embodiment of the utility model:
This execution mode only changes the structure of the first flexible strip 9 and the second flexible strip 12, and all the other all do not become, and the structure of the first flexible strip 9 and the second flexible strip 12 is shown in that, shown in accompanying drawing 8, the thickness of flexible strip is 0.45mm; Its installation process is completely with described in concrete enforcement above; Carry out for this embodiment the results are shown in Table shown in 1 and 2 after the vibration experiment of Z-direction:
The sinusoidal resident experiment of table 1.
Table 2. random vibration is tested
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. the crystal oscillator vibration absorber based on flexible strip, comprise, shell outer catch, upper shell, lower house, lower house base plate, it is characterized in that, the internal structure of this vibration absorber comprises: soft, counterweight under crystal oscillator, circuit board, the first flexible strip, the second flexible strip, adjusting screw(rod), adjusting nut, connector, plate; First flexible strip and the second flexible strip are all the uniform flake structures of thickness, soft two offsides be arranged in below circuit board under connector and plate respectively in a center of symmetryly, first flexible strip and the second flexible strip are symmetrically arranged in four sides of crystal oscillator respectively, and adjusting screw(rod) is connected by screw pair with adjusting nut.
2. as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, soft, two connectors under two the first flexible strip, two the second flexible strip, two plates, four adjusting screw(rod)s, four adjusting nuts, four outer catch of shells should be set based on crystal oscillator vibration absorber of flexible strip.
3. as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, should arrange based on the crystal oscillator vibration absorber of flexible strip and also comprise: circuit board, the first pan head screw, the first sunk screw, counterweight, the second pan head screw, the 3rd pan head screw, the 4th pan head screw, the 5th pan head screw, the second sunk screw, the 3rd sunk screw, the 4th sunk screw;
Connector is connected with the first pan head screw with the through hole of circuit board corner respectively mutually with one end screw of soft under plate; First flexible strip and adjusting nut are at one end connected mutually with the 3rd pan head screw, and the other end is connected mutually with the screwed hole on connector; Second flexible strip and adjusting nut are at one end connected mutually with the 5th pan head screw, and the screwed hole under the other end and plate on soft is connected mutually; Counterweight is connected by the first sunk screw mutually with two connectors; Adjusting screw(rod) is arranged in the coaxial unthreaded hole at upper shell corner place, is assembled in upper shell by the vibration-proof structure of the screw pair of adjusting screw(rod) and adjusting nut; The outer catch of shell is enclosed within the round ladder optical axis that adjusting screw(rod) stretches out outside upper shell, and is connected on the outer wall of upper shell by the second sunk screw; Lower house is connected with upper shell mutually by 3 the 3rd sunk screws, and lower house base plate is connected with lower house mutually by 3 the 4th sunk screws.
4. as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, adjusting nut and adjusting screw(rod) are matched by screw pair, adjusting nut has two tapped through holes, the screwed hole of vertical direction is in order to be connected mutually with flexible strip, it is secondary that screw thread on the screw of horizontal direction and adjusting screw(rod) forms adjustable screw, the rotary motion of adjusting screw(rod) is converted to the translational motion of nut relative to screw axial.
5. as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, upper shell and lower house respectively make the asymmetric two parts in four sides, and lower housing section is made up of lower house and lower house base plate again.
6., as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, counterweight is connected by connector mutually with crystal oscillating circuit plate.
7. as claimed in claim 1 based on the crystal oscillator vibration absorber of flexible strip, it is characterized in that, under the first flexible strip, the second flexible strip and the plate that adopt high resiliency and impact-resistant spring steel to make soft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073182.5U CN204334516U (en) | 2015-02-02 | 2015-02-02 | A kind of crystal oscillator vibration absorber based on flexible strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073182.5U CN204334516U (en) | 2015-02-02 | 2015-02-02 | A kind of crystal oscillator vibration absorber based on flexible strip |
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| Publication Number | Publication Date |
|---|---|
| CN204334516U true CN204334516U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520073182.5U Expired - Fee Related CN204334516U (en) | 2015-02-02 | 2015-02-02 | A kind of crystal oscillator vibration absorber based on flexible strip |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617956A (en) * | 2019-10-21 | 2019-12-27 | 山西汾西重工有限责任公司 | Coiling aging executing mechanism of constant force spring for mechanical time delay switch |
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2015
- 2015-02-02 CN CN201520073182.5U patent/CN204334516U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617956A (en) * | 2019-10-21 | 2019-12-27 | 山西汾西重工有限责任公司 | Coiling aging executing mechanism of constant force spring for mechanical time delay switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20200202 |