Constant-temperature crystal oscillator with good air tightness

Abstract

The utility model belongs to the technical field of constant-temperature crystal oscillators, and particularly relates to a constant-temperature crystal oscillator with good air tightness, which comprises a constant-temperature crystal oscillator body. A protection box is arranged at the bottom of the outer side wall of the constant-temperature crystal oscillator body; an inclined notch is formed in the side wall of the protection box; the inner side wall of the inclined notch is in sliding contact with a first sealing plate; a plurality of first springs are fixedly connected to the outer side wall of the first sealing plate; the tops of the outer side walls of the first springs are fixedly connected with first supporting plates. A pair of first supporting plates is arranged; the outer side wall of the protection box is fixedly connected with a pair of sliding grooves. The inner side wall of the sliding groove is in sliding contact with a second sealing plate. The outer side wall of the second sealing plate is fixedly connected with a pair of connecting blocks; a pair of first notches is formed in the side wall of the first sealing plate; and through arrangement of an inclined notch, a connecting block and a first notch, when the equipment is disassembled, debugged and replaced for multiple times, the probability that the sealing performance of the equipment is reduced due to multiple times of disassembly is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of constant temperature crystal oscillators, in particular to a constant temperature crystal oscillator with good air tightness. Background Art

[0002] Oven controlled crystal oscillator, also known as oven controlled crystal oscillator, has a wide range of applications, including military and aerospace fields (such as communication navigation, radar, etc.), scientific research and measurement (such as atomic clocks, measuring equipment, etc.), industrial fields (such as communication, telecommunications, aviation, etc.), consumer fields (such as watches, telephones, etc.) and automotive fields (such as engine control, GPS applications, etc.).

[0003] It uses a constant temperature bath to keep the temperature of the quartz crystal resonator in the crystal oscillator constant, thereby minimizing the change in the oscillator output frequency caused by changes in the surrounding temperature. The constant temperature crystal oscillator consists of a constant temperature bath control circuit and an oscillator circuit, and usually uses a differential series amplifier composed of a thermistor "bridge" to achieve temperature control.

[0004] In the process of using a constant temperature crystal oscillator, a protective shell is generally in the form of a snap-on, which is convenient to install. However, when the protective shell needs to be removed multiple times, the connecting rod method of the snap-on will cause some parts to deform, thereby reducing the sealing and the protection of the constant temperature crystal oscillator. Therefore, in order to solve the above problem, a constant temperature crystal oscillator with good airtightness is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the utility model provides a constant temperature crystal oscillator with good airtightness.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model described in the utility model is a constant temperature crystal oscillator with good airtightness, comprising a constant temperature crystal oscillator body; a protection box is arranged at the bottom of the outer side wall of the constant temperature crystal oscillator body; an inclined slot is provided on the side wall of the protection box; a first sealing plate is in sliding contact with the inner side wall of the inclined slot; a plurality of first springs are fixedly connected to the outer side wall of the first sealing plate; a first support plate is fixedly connected to the top of the outer side wall of the first spring; the first support plate is arranged as a pair; a pair of slide grooves are fixedly connected to the outer side wall of the protection box; a second sealing plate is in sliding contact with the inner side wall of the slide groove; a pair of connecting blocks are fixedly connected to the outer side wall of the second sealing plate; a pair of first slots are provided on the side wall of the first sealing plate; the connecting block is in sliding contact with the first slot; the connecting block is larger than the first slot; the connecting block is made of plastic material.

[0007] Preferably, the length of the second sealing plate is greater than the length of the protective box; a pair of second support plates are fixedly connected to the outer side wall of the second sealing plate; a fixed column is rotatably connected to the inner side wall of the second support plate; a rotating rod is fixedly connected to the outer side wall of the fixed column; a connecting column is fixedly connected to the outer side wall of the rotating rod; the first sealing plate is fixedly connected to the limiting plate on the outer side wall; and the connecting column is in contact with the limiting plate.

[0008] Preferably, the outer wall of the protection box is fixedly connected to a wire tube; the outer wall of the wire tube is fixedly connected to a support column; the top of the outer wall of the support column is fixedly connected to a measuring instrument; and the outer wall of the wire tube is fixedly connected to a sensing wire.

[0009] Preferably, a pair of fixing plates are fixedly connected to the inner side wall of the protection box; a spring column is fixedly connected to the side wall of the fixing plate; an extrusion plate is fixedly connected to the bottom of the outer side wall of the spring column; the extrusion plate is in contact with the protection box; and the fixing plate is not in contact with the induction wire.

[0010] Preferably, a first sealing strip is fixedly connected to the inner side wall of the protection box; an outer side wall of the first sealing strip is in contact with a second sealing plate; a second sealing strip is fixedly connected to the side wall of the first sealing plate; and the second sealing strip is in sliding contact with the second sealing plate.

[0011] Preferably, a valve is provided on the side wall of the protection box; the valve is arranged at a position close to the wire tube.

[0012] Preferably, a protection tube is fixedly connected to the outer side wall of the protection box; the protection tube is arranged on the outer side wall of the valve.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model provides a constant temperature crystal oscillator with good airtightness. By setting the inclined notch, the connecting block and the first notch, when the equipment is working normally, the first sealing plate and the second sealing plate can achieve the sealing effect on the protection box. When the equipment needs to be disassembled, it is only necessary to pull the second sealing plate and the first sealing plate in sequence to achieve the maintenance or replacement of the constant temperature crystal oscillator body. When the equipment encounters multiple disassembly, debugging and replacement, the probability of reduced sealing of the equipment due to multiple disassembly is reduced, the practicality of the equipment is increased, and it is convenient for the staff to maintain and use the equipment.

[0015] 2. The utility model provides a constant temperature crystal oscillator with good airtightness. Through the connection column and the limit plate, when the equipment is installed, if it encounters an accidental collision or improper operation by the staff, the limit plate can fix the connection column so that the second sealing plate cannot be separated from the equipment, thereby achieving a reinforcement effect and reducing the phenomenon of the second sealing plate being separated from the equipment due to accidental collision or operational error. When encountering a collision, the second sealing plate will move. The second sealing plate itself is set to be longer, so that the second sealing plate can always form a sealing effect on the protective box, thereby increasing the practicability and convenience of the equipment and facilitating the maintenance of the equipment by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the protection box in the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the first spring in the utility model;

[0020] Figure 4 It is a three-dimensional diagram of the limiting plate in the utility model;

[0021] Figure 5 It is a cross-sectional view of the protection tube in the utility model.

[0022] Legend:

[0023] 1. Constant temperature crystal oscillator body; 11. Protection box; 12. Inclined notch; 13. First sealing plate; 14. First spring; 15. First support plate; 16. Slide groove; 17. Second sealing plate; 18. Connecting block; 19. First notch; 2. Second support plate; 21. Fixed column; 22. Turn bar; 23. Connecting column; 24. Limiting plate; 3. Wire tube; 31. Support column; 32. Measuring instrument; 33. Induction wire; 4. Fixed plate; 41. Spring column; 42. Extrusion plate; 5. First sealing strip; 51. Second sealing strip; 6. Valve; 7. Protection tube. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Specific examples are given below.

[0026] See also Figure 1 - Figure 5 The utility model provides a constant temperature crystal oscillator with good air tightness, including a constant temperature crystal oscillator body 1; a protection box 11 is arranged at the bottom of the outer side wall of the constant temperature crystal oscillator body 1; an inclined notch 12 is opened on the side wall of the protection box 11; a first sealing plate 13 is slidably contacted on the inner side wall of the inclined notch 12; a plurality of first springs 14 are fixedly connected to the outer side wall of the first sealing plate 13; a first support plate 15 is fixedly connected to the top of the outer side wall of the first spring 14; the first support plate 15 is arranged as a pair; a pair of slide grooves 16 are fixedly connected to the outer side wall of the protection box 11; a second sealing plate 17 is slidably contacted on the inner side wall of the slide groove 16; a pair of connecting blocks 18 are fixedly connected to the outer side wall of the second sealing plate 17; a pair of first notches 19 are opened on the side wall of the first sealing plate 13; the connecting block 18 is in sliding contact with the first notch 19; the connecting block 18 is larger than the first notch 19; the connecting block 18 is made of plastic material. The first sealing plate 13 is pushed, and the first sealing plate 13 moves toward the inclined notch 12. Since the inclined notch 12 is in an inclined state, the first spring 14 and the first supporting plate 15 are squeezed. The farther away from the second sealing plate 17, the stronger the squeezing force is, so that the first sealing plate 13 is fixed, and the second sealing plate 17 is slid through the slide groove 16. At this time, the first notch 19 contacts the connecting block 18, and the connecting block 18 is larger than the first notch 19, so that the friction between the connecting block 18 and the first notch 19 is increased, so that the second sealing plate 17 is fixed. Through the set inclined notch 12, connecting block 18 and first notch 19, when the equipment is working normally, the first sealing plate 13 and the second sealing plate 17 can achieve a sealing effect on the protection box 11. When the equipment needs to be disassembled, it is only necessary to pull the second sealing plate 17 and the first sealing plate 13 in sequence to achieve the maintenance or replacement of the constant temperature crystal oscillator body 1. When the equipment encounters multiple disassembly, debugging and replacement, the probability of reduced sealing of the equipment due to multiple disassembly is reduced, the practicality of the equipment is increased, and it is convenient for the staff to maintain and use the equipment.

[0027] Further, such as Figure 1 and Figure 4As shown, the length of the second sealing plate 17 is greater than the length of the protection box 11; a pair of second support plates 2 are fixedly connected to the outer side wall of the second sealing plate 17; the inner side wall of the second support plate 2 is rotatably connected to a fixing column 21; the outer side wall of the fixing column 21 is fixedly connected to a rotating rod 22; the outer side wall of the rotating rod 22 is fixedly connected to a connecting column 23; the outer side wall of the first sealing plate 13 is fixedly connected to a limiting plate 24; the connecting column 23 is in contact with the limiting plate 24. After installing the second sealing plate 17, rotate the rotating rod 22 to make the connecting column 23 contact with the limiting plate 24. Through the setting of the connecting column 23 and the limiting plate 24, when the equipment is installed, if it encounters an unexpected collision or improper operation by the staff, the limiting plate 24 can fix the connecting column 23, so that the second sealing plate 17 cannot be separated from the equipment, thereby achieving a reinforcement effect and reducing the phenomenon of the second sealing plate 17 being separated from the equipment due to accidental collision or operational error. When encountering a collision, the second sealing plate 17 will move. The second sealing plate 17 itself is set to be longer, so that the second sealing plate 17 can always form a sealing effect on the protective box 11, thereby increasing the practicability and convenience of the equipment and facilitating the maintenance of the equipment by the staff.

[0028] Further, such as Figure 1 and Figure 3 As shown, the outer wall of the protection box 11 is fixedly connected to the wire tube 3; the outer wall of the wire tube 3 is fixedly connected to the support column 31; the top of the outer wall of the support column 31 is fixedly connected to the measuring instrument 32; the outer wall of the wire tube 3 is fixedly connected to the sensing wire 33. The sensing wire 33 displays the tested temperature and humidity on the measuring instrument 32. Through the setting of the sensing wire 33 and the measuring instrument 32, the staff can quickly and conveniently understand the status of their equipment, which is convenient for the staff to understand the working status of the equipment in various environments in real time, and is convenient for the staff to test the equipment and record various experimental data.

[0029] Further, such as Figure 2 As shown, a pair of fixing plates 4 are fixedly connected to the inner side wall of the protection box 11; a spring column 41 is fixedly connected to the side wall of the fixing plate 4; an extrusion plate 42 is fixedly connected to the bottom of the outer side wall of the spring column 41; the extrusion plate 42 is in contact with the protection box 11; and the fixing plate 4 is not in contact with the induction wire 33. The spring column 41 squeezes the extrusion plate 42 toward the protection box 11. When the device encounters an impact, the spring column 41 and the extrusion plate 42 are provided, so that part of the kinetic energy generated by the impact is converted into the potential energy of the spring column 41, thereby reducing the damage of the vibration generated by the impact to the constant temperature crystal oscillator body 1, increasing the practicality of the device, and reducing the probability of device failure.

[0030] Further, such as Figure 2 and Figure 4As shown, the inner side wall of the protection box 11 is fixedly connected to the first sealing strip 5; the outer side wall of the first sealing strip 5 contacts the second sealing plate 17; the side wall of the first sealing plate 13 is fixedly connected to the second sealing strip 51; the second sealing strip 51 is in sliding contact with the second sealing plate 17. By providing the first sealing strip 5 and the second sealing strip 51, the sealing performance of the protection box 11 is further improved when the equipment is working, and the wear between the parts caused by sliding during long-term use, which reduces the sealing performance of the protection box 11, increases the practicality of the equipment, and facilitates the subsequent use and maintenance of the equipment by the staff.

[0031] Further, such as Figure 5 As shown, the side wall of the protection box 11 is provided with a valve 6; the valve 6 is arranged near the wire tube 3. When the device is working, the thermostatic crystal oscillator body 1 itself generates heat. Through the valve 6, when the temperature inside the protection box 11 is within a certain safety range, the valve 6 will continue to remain closed. When the device fails, the temperature inside the protection box 11 will increase, and the pressure will also change. When it reaches a certain amount, the valve 6 will be opened by the pressure, and the higher temperature gas inside the protection box 11 can be discharged, protecting the safety of other parts and increasing the practicality of the device.

[0032] Further, such as Figure 1 and Figure 5 As shown, the outer wall of the protection box 11 is fixedly connected with a protection tube 7; the protection tube 7 is arranged on the outer wall of the valve 6. When the device is working, the protection tube 7 can protect the valve 6, reduce the phenomenon of premature opening of the valve 6 due to accidental collision, and reduce the damage to the valve 6 caused by sharp objects.

[0033] Working principle: push the first sealing plate 13, the first sealing plate 13 moves toward the inclined notch 12, because the inclined notch 12 is in an inclined state, the first spring 14 and the first supporting plate 15 are squeezed, the farther away from the second sealing plate 17, the stronger the squeezing force, so that the first sealing plate 13 is fixed, and the second sealing plate 17 is slid through the slide groove 16, at this time the first notch 19 is in contact with the connecting block 18, the connecting block 18 is larger than the first notch 19, so that the friction between the connecting block 18 and the first notch 19 is increased, so that the second sealing plate 17 is fixed, and through the set inclined notch 12, connecting block 18 and first notch 19, when the equipment is working normally, the first sealing plate 13 and the second sealing plate 17 can achieve a sealing effect on the protection box 11, and when the equipment needs to be disassembled When disassembling, it is only necessary to pull the second sealing plate 17 and the first sealing plate 13 in sequence to repair or replace the constant temperature crystal oscillator body 1. When the equipment encounters multiple disassembly, debugging and replacement, the probability of reduced sealing of the equipment due to multiple disassembly is reduced, the practicality of the equipment is increased, and it is convenient for the staff to maintain and use the equipment. After installing the second sealing plate 17, the rotating rod 22 is rotated to make the connecting column 23 contact with the limiting plate 24. Through the setting of the connecting column 23 and the limiting plate 24, when the equipment is installed, if there is an accidental collision or improper operation by the staff, the limiting plate 24 can fix the connecting column 23, so that the second sealing plate 17 cannot be separated from the equipment, which has a reinforcement effect and reduces the second sealing plate 17 caused by accidental collision or operational errors. The sealing plate 17 is detached from the equipment. When encountering a collision, the second sealing plate 17 will move. The second sealing plate 17 itself is set longer, so that the second sealing plate 17 can always form a sealing effect on the protection box 11, increasing the practicality and convenience of the equipment, and facilitating the maintenance of the equipment by the staff. The induction wire 33 displays the tested temperature and humidity on the measuring instrument 32. Through the set induction wire 33 and the measuring instrument 32, the staff can quickly and conveniently understand the status of their equipment, which is convenient for the staff to understand the working status of the equipment in various environments in real time, and is convenient for the staff to test the equipment and record various experimental data. The spring column 41 squeezes the extrusion plate 42 toward the protection box 11. When the equipment encounters a collision, the spring column 41 is set 41 and the extrusion plate 42 convert part of the kinetic energy generated by the impact into the potential energy of the spring column 41, reduce the damage of the vibration generated by the impact to the constant temperature crystal oscillator body 1, increase the practicality of the equipment, and reduce the probability of equipment failure. By setting the first sealing strip 5 and the second sealing strip 51, when the equipment is working, the sealing of the protection box 11 is further increased, and the wear between the parts caused by sliding during long-term use, which reduces the phenomenon of reduced sealing inside the protection box 11, increases the practicality of the equipment, and facilitates the subsequent use and maintenance of the equipment by the staff. When the equipment is working, the constant temperature crystal oscillator body 1 itself generates heat. Through the valve 6, when the temperature inside the protection box 11 is within a certain safety range, the valve 6 will continue to remain in a closed state.When the device fails, the temperature in the protection box 11 will increase, and the pressure will also change. When it reaches a certain amount, the valve 6 will be opened by the pressure. At this time, the high temperature gas inside the protection box 11 can be discharged to protect the safety of other parts and increase the practicality of the device. When the device is working, the protective tube 7 can protect the valve 6, reduce the phenomenon of premature opening of the valve 6 due to accidental collision, and reduce the damage to the valve 6 caused by sharp objects.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A constant temperature crystal oscillator with good airtightness, comprising a constant temperature crystal oscillator body (1); characterized in that: A protection box (11) is provided at the bottom of the outer wall of the constant temperature crystal oscillator body (1); an inclined notch (12) is provided on the side wall of the protection box (11); a first sealing plate (13) is in sliding contact with the inner wall of the inclined notch (12); a plurality of first springs (14) are fixedly connected to the outer wall of the first sealing plate (13); a first support plate (15) is fixedly connected to the top of the outer wall of the first spring (14); the first support plate (15) is provided in a pair; a pair of slide grooves (16) are fixedly connected to the outer wall of the protection box (11); a second sealing plate (17) is in sliding contact with the inner wall of the slide groove (16); a pair of connecting blocks (18) are fixedly connected to the outer wall of the second sealing plate (17); a pair of first notches (19) are provided on the side wall of the first sealing plate (13); the connecting block (18) is in sliding contact with the first notch (19); the connecting block (18) is larger than the first notch (19); the connecting block (18) is made of plastic material.

2. The oven-controlled crystal oscillator with good airtightness according to claim 1, characterized in that: The length of the second sealing plate (17) is greater than the length of the protection box (11); the outer side wall of the second sealing plate (17) is fixedly connected to a pair of second support plates (2); the inner side wall of the second support plate (2) is rotatably connected to a fixing column (21); the outer side wall of the fixing column (21) is fixedly connected to a rotating rod (22); the outer side wall of the rotating rod (22) is fixedly connected to a connecting column (23); the outer side wall of the first sealing plate (13) is fixedly connected to a limiting plate (24); the connecting column (23) is in contact with the limiting plate (24).

3. The oven-controlled crystal oscillator with good airtightness according to claim 1, characterized in that: The outer wall of the protection box (11) is fixedly connected to a wire tube (3); the outer wall of the wire tube (3) is fixedly connected to a support column (31); the top of the outer wall of the support column (31) is fixedly connected to a measuring instrument (32); and the outer wall of the wire tube (3) is fixedly connected to an induction wire (33).

4. The oven-controlled crystal oscillator with good airtightness according to claim 3, characterized in that: A pair of fixing plates (4) are fixedly connected to the inner side walls of the protection box (11); a spring column (41) is fixedly connected to the side walls of the fixing plates (4); an extrusion plate (42) is fixedly connected to the bottom of the outer side walls of the spring columns (41); the extrusion plate (42) is in contact with the protection box (11); and the fixing plates (4) are not in contact with the induction wire (33).

5. The oven-controlled crystal oscillator with good airtightness according to claim 1, characterized in that: The inner wall of the protection box (11) is fixedly connected to a first sealing strip (5); the outer wall of the first sealing strip (5) is in contact with a second sealing plate (17); the side wall of the first sealing plate (13) is fixedly connected to a second sealing strip (51); and the second sealing strip (51) is in sliding contact with the second sealing plate (17).

6. The oven-controlled crystal oscillator with good airtightness according to claim 3, characterized in that: The side wall of the protection box (11) is provided with a valve (6); the valve (6) is arranged at a position close to the wire tube (3).

7. The oven-controlled crystal oscillator with good airtightness according to claim 6, characterized in that: A protection tube (7) is fixedly connected to the outer side wall of the protection box (11); the protection tube (7) is arranged on the outer side wall of the valve (6).

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