A tuning fork type quartz crystal oscillator and resonator
By adding convex energy shunt blocks to the fixed block of the tuning fork-type quartz crystal oscillation plate, the problem of excessive impedance caused by vibration leakage during packaging in the prior art is solved, and a lower impedance and more significant limited kinetic energy are achieved.
Patent Information
- Application Number
- CN202311520065.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2043-11-15
AI Technical Summary
The design of quartz tuning fork resonators in the prior art ignores the vibration leakage phenomenon during the packaging process, resulting in excessive overall impedance.
Add convex energy shunt blocks to the fixed block of the tuning fork-type quartz crystal oscillation plate to limit the energy of the interdigit to the dispensing position of the fixed block and avoid energy transfer to the ceramic base.
It effectively avoids vibration leakage, reduces the overall impedance of the resonator, and significantly increases the limited kinetic energy, making the effect more significant.
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Figure CN117439571B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of quartz crystals, and in particular to a tuning fork type quartz crystal oscillator and a resonator. Background Art
[0002] With the miniaturization and ultra-thinness of communication terminal electronic products, especially the strict requirements of smart wearable electronic products on line installation space, electronic devices also require small size and miniaturization. As the tuning fork type quartz crystal resonator that generates clock signals in electronic products, the package size is gradually reduced, which also means that the size of the tuning fork type quartz oscillator is getting smaller and smaller. Therefore, traditional mechanical processing technology is difficult to meet the requirements. In order to solve this problem, QMEMS lithography technology is applied to the processing of anisotropic material single crystal SIO2. With the miniaturization of quartz tuning fork crystal resonators, the biggest problem currently faced is the impedance problem.
[0003] After the tuning fork chip is designed, it is fixed in the ceramic base by conductive glue, and then the base is vacuum-sealed. During the design process, the characteristics of the quartz chip are generally studied, focusing on the vibration amplitude, frequency and corresponding vibration impedance of the tuning fork. However, the chip is finally fixed on the ceramic base, and the kinetic energy of the vibration beam is transmitted to the area of the fixed block along the vibration beam, and finally leakage vibration occurs, resulting in the overall impedance of the tuning fork being too large.
[0004] The applicant has found that the prior art has at least the following technical problems:
[0005] The prior art design of quartz tuning fork resonators basically focuses on the design of tuning fork type crystal oscillator, while ignoring the leakage vibration phenomenon in the packaging process. Summary of the invention
[0006] The purpose of the present invention is to provide a tuning fork type quartz crystal oscillator and resonator to solve the technical problem that the prior art basically focuses on the design of the tuning fork type crystal oscillator and ignores the leakage phenomenon in the packaging process. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.
[0007] To achieve the above object, the present invention provides the following technical solutions:
[0008] The present invention provides a tuning fork type quartz crystal oscillator plate, comprising a quartz crystal oscillator plate body, wherein an outwardly protruding energy shunt block is provided on the energy transfer path of the quartz crystal oscillator plate body.
[0009] Optionally or preferably, the energy diversion block has at least one sharp corner structure away from the quartz crystal oscillator plate body.
[0010] Optionally or preferably, the energy diversion block is in the shape of a triangle, a rectangle or a trapezoid; and when the energy diversion block is in the shape of a triangle, a rectangle or a trapezoid, one side of the energy diversion block is connected to the body of the quartz crystal oscillator.
[0011] Optionally or preferably, at least one energy shunt block is respectively provided on both sides of the quartz crystal oscillator body.
[0012] Optionally or preferably, an energy shunt block is respectively provided on both sides of the quartz crystal oscillator body.
[0013] Optionally or preferably, the energy shunt block is arranged on a fixed block of the quartz crystal oscillator plate body and is arranged close to a vibration beam of the quartz crystal oscillator plate body.
[0014] Optionally or preferably, the energy shunt block and the quartz crystal oscillator plate body are an integrated structure.
[0015] The present invention provides a resonator, comprising the above-mentioned tuning fork type quartz crystal oscillator.
[0016] Based on the above technical solution, the embodiments of the present invention can at least produce the following technical effects:
[0017] (1) The tuning fork type quartz crystal oscillator provided by the present invention adds a protruding energy shunt block on the fixed block of the tuning fork type quartz crystal oscillator. After the quartz crystal oscillator is packaged and fixed on the ceramic base, the energy of the fork finger can be effectively limited to the protruding energy shunt block so that it will not be transmitted to the glue point of the fixed block, thereby avoiding the energy transfer to the ceramic base, and further avoiding the overall impedance of the resonator being too large due to leakage vibration. Compared with the resonator using the tuning fork crystal oscillator with a notch in the prior art, the limited kinetic energy of the resonator using the tuning fork type quartz crystal oscillator of the present invention is 3 times that of the resonator using the tuning fork type crystal oscillator with a notch in the prior art, and the effect is more significant; and after the tuning fork type quartz crystal oscillator in the present invention is packaged, the impedance analysis is performed through finite element analysis, and the impedance of the resonator using the tuning fork type quartz crystal oscillator of the present invention is less than the impedance of the resonator using the tuning fork type crystal oscillator with a notch in the prior art.
[0018] (2) The resonator provided by the present invention adopts the tuning fork type quartz crystal oscillator in the present invention, and adds a protruding energy shunt block to the fixing block of the tuning fork type quartz crystal. After the quartz crystal oscillator is packaged and fixed on the ceramic base, the energy of the fork fingers can be effectively limited to the protruding energy shunt block so that it will not be transmitted to the glue point of the fixing block, thereby avoiding the energy transfer to the ceramic base, and further avoiding the overall impedance of the resonator being too large due to leakage vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;
[0021] Figure 2 is a schematic structural diagram of Embodiment 2 of the present invention;
[0022] Figure 3 is a schematic diagram of the structure of Embodiment 3 of the present invention;
[0023] Figure 4 is a schematic structural diagram of Embodiment 4 of the present invention;
[0024] Figure 5 is a schematic diagram of the structure of Embodiment 5 of the present invention;
[0025] Figure 6 is a schematic diagram of the structure of Embodiment 6 of the present invention;
[0026] Figure 7 is a schematic diagram of the structure of Embodiment 7 of the present invention;
[0027] Figure 8 is a schematic diagram of the structure of Embodiment 8 of the present invention;
[0028] Fig. 9 is a schematic structural diagram of Embodiment 9 of the present invention;
[0029] Fig.10 is a schematic diagram of the structure of Embodiment 10 of the present invention;
[0030] Fig.11 is a schematic diagram of the structure of Embodiment 11 of the present invention;
[0031] Fig.12 It is a schematic diagram of the structure of Comparative Example 1 and Comparative Example 2;
[0032] Fig.13 It is a calculation model diagram of the design calculation performed according to the finite element method in comparative example 1 and comparative example 2;
[0033] Fig.14 It is a mesh model diagram of the design calculation performed according to the finite element method in Comparative Example 1 and Comparative Example 2;
[0034] Fig.15 It is the kinetic energy diagram of the finite element simulation of Example 1;
[0035] Fig.16 It is the kinetic energy diagram of the finite element simulation of Example 2;
[0036] Fig.17 It is a structural schematic diagram of Comparative Example 3;
[0037] Fig.18 It is a vibration displacement diagram of time domain analysis of finite element simulation of Example 3;
[0038] Fig.19 It is the kinetic energy diagram of the finite element simulation of Example 3;
[0039] Fig. 20 is a meshed model diagram of the design calculation performed according to the finite element method in Example 3;
[0040] Fig.21 is a time domain analysis vibration displacement diagram of finite element simulation of Example 3;
[0041] Fig. 22 is an impedance analysis diagram of finite element simulation of Example 3;
[0042] Fig.23 is a kinetic energy diagram of finite element simulation of Example 3;
[0043] Fig.24 It is a structural schematic diagram of a SMD2012 quartz crystal oscillator in the prior art;
[0044] Fig.25 It is a schematic diagram of dimension marking of comparative example 1 and comparative example 2;
[0045] Fig.26 This is a schematic diagram of dimension marking for Example 3;
[0046] Fig. 27 It is a dimension marking schematic diagram of Example 3.
[0047] In the figure: 1. Quartz crystal oscillator body; 2. Energy diversion block; 3. Sharp-angle structure; 4. Notch. DETAILED DESCRIPTION
[0048] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.
[0049] like Figure 1-Figure 27 As shown:
[0050] 1. Implementation
[0051] Embodiment 1:
[0052] The present invention provides a tuning fork type quartz crystal oscillator, comprising a quartz crystal oscillator body 1 , wherein an outwardly protruding energy shunt block 2 is provided on the energy transfer path of the quartz crystal oscillator body 1 .
[0053] As an optional implementation, the energy shunt block 2 has at least one sharp corner structure 3 away from the quartz crystal oscillator plate body 1 .
[0054] As an optional implementation, the energy diversion block 2 is in the shape of a triangle, a rectangle or a trapezoid; and when the energy diversion block 2 is in the shape of a triangle, a rectangle or a trapezoid, one side of the energy diversion block 2 is connected to the quartz crystal oscillator plate body 1.
[0055] As an optional implementation, at least one energy shunt block 2 is respectively provided on both sides of the quartz crystal oscillator body 1 .
[0056] As an optional implementation, an energy shunt block 2 is respectively provided on both sides of the quartz crystal oscillator body 1 .
[0057] As an optional implementation, the energy shunt block 2 is disposed on a fixed block of the quartz crystal oscillator body 1 and is disposed close to a vibration beam of the quartz crystal oscillator body 1 .
[0058] As an optional implementation, the energy shunt block 2 and the quartz crystal oscillator plate body 1 are an integrated structure.
[0059] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and a glue dispensing platform is arranged at one end of the fixed block away from the vibration arm, and the glue dispensing platform is used for glue dispensing and fixing the tuning fork type quartz crystal.
[0060] In this embodiment, an energy shunt block 2 is provided on both sides of the fixing block of the quartz crystal oscillator body 1 , and the energy shunt block 2 is in the shape of an isosceles triangle with a sharp angle structure 3 .
[0061] Embodiment 2:
[0062] The difference between this embodiment and the first embodiment is that the energy diversion block 2 is in the shape of a right triangle, wherein one right angle side is connected to the quartz crystal oscillator plate body 1 .
[0063] The rest is the same as Example 1.
[0064] Embodiment 3:
[0065] The present embodiment is different from the first embodiment in that an energy shunt block 2 is provided on both sides of the fixing block of the quartz crystal oscillator body 1 , respectively. The energy shunt block 2 is rectangular in shape and has two sharp corner structures 3 .
[0066] The rest is the same as Example 1.
[0067] Embodiment 4:
[0068] The present embodiment is different from the first embodiment in that two energy shunt blocks 2 are respectively provided on both sides of the fixing block of the quartz crystal oscillator body 1 , and the energy shunt blocks 2 are rectangular in shape and have two sharp corner structures 3 .
[0069] The rest is the same as Example 1.
[0070] Embodiment 5:
[0071] The present embodiment is different from the first embodiment in that three energy shunt blocks 2 are respectively provided on both sides of the fixing block of the quartz crystal oscillator body 1 , and the energy shunt blocks 2 are rectangular in shape and have two sharp corner structures 3 .
[0072] The rest is the same as Example 1.
[0073] Embodiment 6:
[0074] The present embodiment is different from the first embodiment in that an energy shunt block 2 is provided on both sides of the fixing block of the quartz crystal oscillator body 1 , respectively. The energy shunt block 2 is trapezoidal in shape and has two sharp corner structures 3 .
[0075] The rest is the same as Example 1.
[0076] Embodiment 7:
[0077] The difference between this embodiment and embodiment 1 is that:
[0078] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and also includes a pair of dispensing arms arranged on the fixed block and extending along the length direction of the vibration arms and parallel to the vibration arms. The dispensing arms are distributed on both sides of the two vibration arms, and a dispensing platform is provided at the arm end of the dispensing arm to facilitate the dispensing and fixing of the tuning fork type quartz crystal.
[0079] In this embodiment, an energy shunt block 2 is provided on both sides of the fixed block of the quartz crystal oscillator body 1 . The energy shunt block 2 is rectangular in shape and has two sharp corner structures 3 .
[0080] The rest is the same as Example 1.
[0081] Embodiment 8:
[0082] The difference between this embodiment and embodiment 1 is that:
[0083] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and also includes a pair of dispensing arms arranged on the fixed block and extending along the length direction of the vibration arms and parallel to the vibration arms. The dispensing arms are distributed on both sides of the two vibration arms, and a dispensing platform is provided at the arm end of the dispensing arm to facilitate the dispensing and fixing of the tuning fork type quartz crystal.
[0084] In this embodiment, an energy shunt block 2 is provided on both sides of the fixed block of the quartz crystal oscillator body 1 . The energy shunt block 2 is in the shape of an isosceles triangle with a sharp angle structure 3 .
[0085] The rest is the same as Example 1.
[0086] Embodiment 9:
[0087] The difference between this embodiment and embodiment 1 is that:
[0088] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and also includes a pair of dispensing arms arranged on the fixed block and extending along the length direction of the vibration arms and parallel to the vibration arms. The dispensing arms are distributed on both sides of the two vibration arms, and a dispensing platform is provided at the arm end of the dispensing arm to facilitate the dispensing and fixing of the tuning fork type quartz crystal.
[0089] In this embodiment, an energy shunt block 2 is provided on both sides of the fixed block of the quartz crystal oscillator body 1. The energy shunt block 2 is in the shape of a right triangle, one of the right angles of which is connected to the quartz crystal oscillator body 1 and has a sharp angle structure 3.
[0090] The rest is the same as Example 1.
[0091] Embodiment 10:
[0092] The difference between this embodiment and embodiment 1 is that:
[0093] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and also includes a pair of dispensing arms arranged on the fixed block and extending along the length direction of the vibration arms and parallel to the vibration arms. The dispensing arms are distributed on both sides of the two vibration arms, and a dispensing platform is provided at the arm end of the dispensing arm to facilitate the dispensing and fixing of the tuning fork type quartz crystal.
[0094] In this embodiment, two energy shunt blocks 2 are respectively provided on both sides of the fixed block of the quartz crystal oscillator body 1 . The energy shunt blocks 2 are rectangular in shape and have two sharp corner structures 3 .
[0095] The rest is the same as Example 1.
[0096] Embodiment 11:
[0097] The difference between this embodiment and embodiment 1 is that:
[0098] In this embodiment, the structure of the tuning fork type quartz crystal oscillator is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and also includes a pair of dispensing arms arranged on the fixed block and extending along the length direction of the vibration arms and parallel to the vibration arms. The dispensing arms are distributed on both sides of the two vibration arms, and a dispensing platform is provided at the arm end of the dispensing arm to facilitate the dispensing and fixing of the tuning fork type quartz crystal.
[0099] In this embodiment, an energy shunt block 2 is provided on both sides of the fixed block of the quartz crystal oscillator body 1 . The energy shunt block 2 is trapezoidal in shape and has two sharp corner structures 3 .
[0100] The rest is the same as Example 1.
[0101] 2. Comparison
[0102] Comparative Examples 1, 2 and 3 are designed based on the structure of a tuning fork piezoelectric quartz chip of SMD3215 specification in the prior art.
[0103] In Comparative Examples 1, 2 and 3, the vibration frequency of the designed tuning fork-shaped quartz crystal wafers is 32.768 KHz.
[0104] Comparative Example 1:
[0105] like Fig.12 As shown, the structure of the tuning fork type quartz crystal is: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and a glue dispensing platform is arranged at one end of the fixed block away from the vibration arms, and the glue dispensing platform is used for glue dispensing and fixing the tuning fork type quartz crystal.
[0106] Comparative Example 2:
[0107] like Fig.12 As shown, the structure of the tuning fork type quartz crystal is: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, and a glue dispensing platform is arranged at one end of the fixed block away from the vibration arms, and the glue dispensing platform is used for glue dispensing and fixing the tuning fork type quartz crystal.
[0108] The biggest difference between the above-mentioned comparative examples 1 and 2 is that the total length of the tuning fork is different, while the length A of the fork fingers is the same, which means that the size of the fixing block of the tuning fork is different; in order to achieve the frequency of the tuning fork to reach 32.768KHz, the length and width of the corresponding tuning fork vibration beam are slightly adjusted. The specific dimensions of the tuning fork type quartz crystal in comparative examples 1 and 2 are shown in Tables 1 and Fig.25 As shown:
[0109]
[0110] Comparative Example 3:
[0111] like Fig.17 As shown, the structure of the tuning fork type quartz crystal is as follows: it includes a fixed block and a pair of vibration arms symmetrically arranged about the central axis of the fixed block, a dispensing platform is arranged at one end of the fixed block away from the vibration arm, and the dispensing platform is used for dispensing and fixing the tuning fork type quartz crystal; a notch 4 is respectively provided on both sides of the fixed block, and the kinetic energy of the fork finger is limited at the notch 4. The specific dimensions of the tuning fork type quartz crystal in Comparative Example 3 are shown in Tables 2 and 3. Fig.26 As shown:
[0112]
[0113] 3. Experimental example:
[0114] 1. Design and calculate comparative examples 1 and 2 according to the finite element method
[0115] ①Computational model such as Fig.13 The gridded model is shown in Fig.14 shown.
[0116] ② The design and calculation results using the finite element method are as follows:
[0117] The vibration frequencies of the tuning fork-type quartz crystals of Comparative Examples 1 and 2 both meet the design requirement of 32.768 KHz, and the impedances of Comparative Examples 1 and 2 are 45 KΩ and 44.8 KΩ, respectively, which meet the requirements.
[0118] 2. The tuning fork quartz wafers in Comparative Example 1 and Comparative Example 2 were packaged under the same conditions and the tuning fork resonator was tested using a 250B plate.
[0119] The test results are:
[0120] The crystal impedances RR in Comparative Example 1 and Comparative Example 2 are 86766.62Ω and 43181.10Ω, respectively.
[0121] It was found that the biggest difference between the two groups of chips is the length of the two groups of chips. The total length of the chips in Example 2 is 10um longer than that in Example 1, and the length of the tuning fork fingers in Example 2 is 17um shorter than that in Example 1, which means that the length of the fixed block of the chip in Example 2 is 27um longer than that of the fixed block in Example 1.
[0122] 3. Comparison of kinetic energy of the wafers in comparative example 1 and comparative example 2 by finite element simulation
[0123] like Fig.15As shown, it is a kinetic energy diagram of finite element simulation of comparative example 1;
[0124] like Fig.16 As shown, it is the kinetic energy diagram of the finite element simulation of comparative example 2.
[0125] From the simulation results, it is found that the kinetic energy of the tuning fork in comparative example 1 transferred to the fixed block is three times that of comparative example 2. Therefore, the size of the fixed block often affects the vibration impedance of the entire device. If the kinetic energy of the tuning fork fingers is better limited to the local area and not transferred too much to the fixed block, it will help avoid the energy transfer between the tuning fork and the base, which is the so-called "leakage vibration phenomenon". For this reason, the size of the fixed block needs to be designed to be larger during the design process, but due to the problem of package size, the size of the fixed block is limited.
[0126] 4. Calculate comparative example 3 according to the finite element simulation method
[0127] Comparative Example 3 was calculated according to the finite element simulation method, and the kinetic energy transfer conditions of Comparative Examples 1 and 2 were compared.
[0128] like Fig.18 As shown, it is a time domain analysis vibration displacement diagram of finite element simulation of comparative example 3;
[0129] like Fig.19 As shown, it is the kinetic energy diagram of finite element simulation of comparative example 3.
[0130] Through simulation, it can be clearly found that the gap 4 structure in comparative example 3 limits the kinetic energy of the tuning fork fingers before the gap 4, effectively isolating the kinetic energy of the tuning fork fingers above the gap 4. However, compared with the structure without the gap 4, although the kinetic energy is isolated, the kinetic energy transmitted by the fingers is much larger in magnitude than that of the structure without the gap 4, so this structural design solves the problem by "blocking".
[0131] 5. According to Table 3 and Fig. 27 The corresponding finite element modeling
[0132]
[0133] like Fig. 20 , is a mesh model diagram of Example 3 designed and calculated according to the finite element method according to the dimensions in Table 2;
[0134] like Fig.21 , is a time domain analysis vibration displacement diagram of embodiment 3 according to the dimensions in Table 2 for finite element simulation;
[0135] like Fig. 22 , is an impedance analysis diagram of Example 3 subjected to finite element simulation according to the dimensions in Table 2;
[0136] like Fig.23 , is a kinetic energy diagram of Example 3 obtained by finite element simulation according to the dimensions in Table 2.
[0137] Through the above analysis, it can be observed that the method of adding an energy shunt block 2 to the tuning fork fixing block can effectively limit the kinetic energy of the fork fingers to the position of the energy shunt block 2, so as not to be transmitted down to the position of the dispensing platform, and avoid being transmitted to the ceramic base, resulting in excessive overall impedance of the device. Compared with the tuning fork crystal oscillator with a notch 4 in Comparative Example 3, the limited kinetic energy of the resonator of the tuning fork type quartz crystal oscillator in Example 3 is 3 times the limited kinetic energy of the resonator of the tuning fork type quartz crystal oscillator in Example 3, and the effect is more significant. In addition, the impedance analysis of the tuning fork chip of Example 3 was performed by finite element method, and the impedance value obtained was 38KΩ, while the impedance value of Comparative Example 3 was 42KΩ, and the impedance value in Example 3 was lower.
[0138] 6. Comparative Examples 1-3 and Examples 1-11 were each subjected to finite element simulation modeling
[0139] The limiting kinetic energy of the tuning fork crystal resonator and therefore the impedance value of the chip are shown in Table 4 below:
[0140]
[0141] It can be seen from Table 4 that the limited kinetic energy of the resonator using the tuning fork type quartz crystal oscillator in Examples 1 to 11 of the present invention is much greater than the limited kinetic energy of the resonator using the tuning fork type quartz crystal oscillator in Comparative Examples 1-3; and, by performing impedance analysis on the tuning fork quartz crystal oscillator in Examples 1-11 and Comparative Examples 1-3 using finite element method, the impedance value of the tuning fork quartz crystal oscillator in Example 1-11 is lower. In Examples 1-11 of the present invention, a protruding energy shunt block 2 is added to the fixed block of the quartz crystal oscillator body 1. After the quartz crystal oscillator is packaged and fixed on the ceramic base, the energy of the fork fingers can be effectively limited to the protruding energy shunt block 2 so that it is not transmitted to the glue dispensing position of the fixed block, thereby avoiding energy transfer to the ceramic base, and further avoiding excessive overall impedance of the device due to leakage vibration.
[0142] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A tuning fork type quartz crystal oscillator, comprising a quartz crystal oscillator body (1), characterized in that: An outwardly protruding energy shunt block (2) is provided on the energy transfer path of the quartz crystal oscillator body (1); the energy shunt block (2) has at least one sharp angle structure (3) away from the quartz crystal oscillator body (1); the energy shunt block (2) is arranged on the fixed block of the quartz crystal oscillator body (1) and is arranged close to the vibration beam of the quartz crystal oscillator body (1); the energy shunt block (2) is arranged on the energy transfer path between the vibration beam and the glue dispensing position of the fixed block, and the energy shunt block (2) is used to limit the kinetic energy of the vibration beam to the outwardly protruding energy shunt block (2) to prevent the kinetic energy from being transmitted to the glue dispensing position of the fixed block; At least one energy shunt block (2) is respectively provided on both sides of the quartz crystal oscillator body (1); The energy shunt block (2) and the quartz crystal oscillator plate body (1) are an integrated structure.
2. The tuning fork type quartz crystal oscillator according to claim 1, characterized in that: The energy shunt block (2) is in the shape of a triangle, a rectangle or a trapezoid; and when the energy shunt block (2) is in the shape of a triangle, a rectangle or a trapezoid, one side of the energy shunt block (2) is connected to the quartz crystal oscillator plate body (1).
3. The tuning fork type quartz crystal oscillator according to claim 1, characterized in that: An energy shunt block (2) is respectively provided on both sides of the quartz crystal oscillator body (1).
4. A resonator, characterized in that: The invention comprises a tuning fork type quartz crystal oscillator plate as described in any one of claims 1 to 3.
Citation Information
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Tuning-fork type quartz-crystal resonator
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Tuning fork type quartz crystal resonator
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