Helium pressurizing tank filling block and helium pressurizing tank
By designing a helium pressurized tank filling block, using the container cavity and multiple air intake holes in it, the problems of helium consumption and waste in quartz crystal oscillator tests are solved, achieving more efficient air tightness testing and cost reduction.
Patent Information
- Application Number
- CN202420449219.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-07
AI Technical Summary
During the airtightness test of quartz crystal oscillator, the prior art requires helium to fill the entire helium pressurized tank, resulting in helium consumption and waste, especially when the amount of quartz crystal oscillator tested is small, resulting in production costs. improve.
A helium pressurized tank filling block is designed, including a test net cup for the filling block body to accommodate the quartz crystal oscillator, and multiple air intake holes are provided on the outer side wall of the filling block body by installing the quartz crystal oscillator. The test net cup is placed in the filling block, and then the filling block is placed in the helium pressurized tank for airtightness testing, reducing the waste of helium and filling amount.
Through this technology, the remaining space in the cavity of the helium pressurized tank is reduced, the consumption of helium is reduced, the accuracy and efficiency of airtightness testing are improved, and the production cost is reduced.
Smart Images
Figure CN222231973U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic component testing devices, in particular to a helium pressurized tank filling block and a helium pressurized tank. Background Art
[0002] During the production process of quartz crystal oscillators, the air tightness of quartz crystal oscillators needs to be tested. During the test, the quartz crystal oscillator will be placed in a helium pressure tank, and helium will be filled into the helium pressure tank until the helium pressure tank is full of helium. The leak detector on the helium pressure tank will be used to measure whether the quartz crystal oscillator is leaking. The amount of quartz crystal oscillator tested each time varies. When only testing a quartz crystal oscillator with a net cup, the entire helium pressure tank must be filled with helium, resulting in a large amount of helium consumption and waste, which increases production costs. Utility Model Content
[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a helium pressurized tank filling block and a helium pressurized tank, which are used to solve the problem in the prior art that a large amount of helium is consumed even when the amount of quartz crystal oscillators tested is small.
[0004] To achieve the above-mentioned purpose and other related purposes, the utility model provides a helium pressurized tank filling block, including a filling block body, a receiving cavity is arranged in the filling block body, the receiving cavity is used to receive a test net cup equipped with a quartz crystal oscillator, and an air inlet hole is arranged on the outer side wall of the filling block body, and the air inlet hole is connected to the receiving cavity.
[0005] Optionally, the filling block body is a cylinder.
[0006] Optionally, there are multiple air inlet holes, which are arranged axially and / or circumferentially along the outer side wall of the filling block body.
[0007] Optionally, a communication groove is provided on the outer side wall of the filling block body, the communication groove extends to an end surface of the filling block body along the axial direction thereof, and the communication groove is connected with each of the air inlet holes.
[0008] Optionally, an avoidance groove for avoiding a top cover of a helium gas pressurized tank is provided on an end surface of one axial end of the filling block body.
[0009] Optionally, the avoidance groove is fan-shaped.
[0010] Optionally, the avoidance groove is communicated with the accommodating cavity.
[0011] Optionally, a helium contact groove is provided at the bottom of the accommodating cavity, and the air inlet hole is communicated with the helium contact groove.
[0012] Optionally, the accommodating cavity is a cylindrical accommodating cavity.
[0013] The utility model also provides a helium pressurized tank, comprising the helium pressurized tank filling block as described above.
[0014] As described above, the helium pressurized tank filling block of the utility model has the following beneficial effects:
[0015] The helium pressurized tank filling block includes a filling block body, and a receiving cavity is provided in the filling block body, and the receiving cavity is used to receive a test net cup carrying a quartz crystal oscillator. The outer wall of the filling block body is provided with an air inlet hole, and the air inlet hole is connected to the receiving cavity. By placing the test net cup equipped with the quartz crystal oscillator into the filling block body, and then placing the filling block body into the inner cavity of the helium pressurized tank for air tightness test, instead of directly placing the test net cup equipped with the quartz crystal oscillator into the helium pressurized tank for testing. The filling block body can occupy a part of the inner cavity volume of the helium pressurized tank when it is loaded into the helium pressurized tank, reducing the remaining space in the inner cavity of the helium pressurized tank, thereby reducing the amount of helium passing into the inner cavity of the helium pressurized tank, reducing the waste of helium, and reducing production costs. Since the volume of the quartz crystal oscillator is small, the space between each other after stacking in the test net cup is small, and it is not easy for helium to enter between each quartz crystal oscillator, so it is not easy to fully contact with each quartz crystal oscillator. By arranging the air inlet holes on the outer side wall of the filling block body, the helium can be brought into contact with each quartz crystal oscillator faster and more fully, thereby improving the accuracy and efficiency of the air tightness test. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A three-dimensional diagram of an embodiment of the utility model;
[0017] Figure 2 Another perspective view of an embodiment of the present invention;
[0018] Figure 3 A three-dimensional diagram of an embodiment of the utility model from a top view;
[0019] Figure 4 It is a front view of an embodiment of the utility model;
[0020] Figure 5 It is a cross-sectional view taken along line CC of an embodiment of the present utility model.
[0021] Part Number Description
[0022] 1-filling block body; 11-air inlet hole; 12-connecting groove; 13-accommodating cavity; 14-avoidance groove; 15-helium contact groove. DETAILED DESCRIPTION
[0023] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.
[0024] It should be noted that the diagrams provided in the present embodiment are only used to illustrate the basic concept of the present invention in a schematic manner, so the diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the layout of the components may be more complicated. The structure, proportion, size, etc. shown in the diagrams attached to this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that the present invention can produce. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of the implementation of the present utility model. Changes or adjustments to their relative relationships should be regarded as the scope of the implementation of the present utility model without substantially changing the technical content.
[0025] See also Figures 1 to 5 The present embodiment provides a helium pressurized tank filling block, which is arranged in the inner cavity of the helium pressurized tank. The helium pressurized tank filling block includes a filling block body 1, the top of the filling block body 1 is open, and a receiving chamber 13 is arranged in the filling block body 1. The receiving chamber 13 is used to receive a test net cup carrying a quartz crystal oscillator, and the receiving chamber 13 is connected to the opening, and the test net cup enters the receiving chamber 13 through the opening. The shape of the receiving chamber 13 is exactly the same as the shape and size of the test net cup, which is convenient for the test net cup to be loaded into the receiving chamber 13. The size of the receiving chamber 13 can be loaded into the test net cup. If the volume of the receiving chamber 13 is too large, more helium needs to be introduced into the receiving chamber 13, resulting in a waste of helium. The smaller the size of the receiving chamber 13, the larger the solid volume of the filling block body 1, and thus the less helium needs to be introduced into the inner cavity of the helium pressurized tank. The top of the test net cup is open, and the outer side wall and the bottom of the test net cup are both mesh structures, and helium can enter the test net cup through the mesh structure. An air inlet hole 11 is provided on the outer side wall of the filling block body 1 . The air inlet hole 11 is a through hole that penetrates the outer side wall of the filling block body 1 in the thickness direction. The air inlet hole 11 is connected to the accommodating cavity 13 .
[0026] In this embodiment, the test net cup equipped with a quartz crystal oscillator is placed in the filling block body 1, and then the filling block body 1 is placed in the inner cavity of the helium pressure tank for air tightness test, instead of directly placing the test net cup equipped with a quartz crystal oscillator into the helium pressure tank for testing. The filling block body 1 can occupy a part of the inner cavity volume of the helium pressure tank when it is placed in the helium pressure tank, reducing the remaining space in the inner cavity of the helium pressure tank, thereby reducing the amount of helium passing into the inner cavity of the helium pressure tank, reducing the waste of helium, and reducing production costs. Since the volume of the quartz crystal oscillator is small, the space between them after stacking in the test net cup is small, and it is not easy for helium to enter between each quartz crystal oscillator, so it is not easy to fully contact each quartz crystal oscillator. By setting the air inlet 11 on the outer wall of the filling block body 1, the helium can contact each quartz crystal oscillator faster and more fully, thereby improving the accuracy and efficiency of the air tightness test.
[0027] In one embodiment, if Figures 1 to 5 As shown, the inner cavity of the helium pressure tank is cylindrical, the filling block body 1 is cylindrical, and the size of the filling block body 1 is slightly smaller than the inner cavity size of the helium pressure tank. The above arrangement can maximize the volume proportion of the filling block body 1 in the inner cavity of the helium pressure tank, thereby reducing the amount of helium that needs to be introduced into the inner cavity of the helium pressure tank, avoiding waste of helium, and reducing production costs.
[0028] In one embodiment, the number of the air inlet holes 11 is multiple and evenly distributed along the axial direction and / or circumferential direction of the outer side wall of the filling block body 1. Figure 1 , Figure 4 , Figure 5 As shown, there are two air inlet holes 11, which are arranged along the axial direction of the outer wall of the filling block body 1, one of which is arranged at the same horizontal height of the outer wall of the filling block body 1 and the bottom of the accommodating cavity 13, and the other air inlet hole 11 is arranged at a position slightly above the middle of the outer wall of the filling block body 1. The volume of the quartz crystal oscillator is small, and the space between them after stacking in the test net cup is small, so it is not easy for helium to enter between each quartz crystal oscillator, and thus it is not easy to fully contact each quartz crystal oscillator. An air inlet hole 11 is respectively arranged at the bottom and the middle of the outer wall of the filling block body 1, on the one hand, it can make helium contact with quartz crystal oscillators at different heights and different positions faster and more fully, and improve the accuracy and efficiency of the air tightness test. On the other hand, there are only two air inlet holes 11, which avoids setting too many air inlet holes 11 and needing to fill more helium, resulting in a waste of helium. Exemplarily, there are two air inlet holes 11, which are arranged along the circumference of the outer wall of the filling block body 1, and the two air inlet holes 11 are evenly distributed along the circumference of the outer wall of the filling block body 1.
[0029] In one embodiment, if Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, a connecting groove 12 is provided on the outer wall of the filling block body 1, and the connecting groove 12 extends to an end face of the filling block body 1 along its axial direction, that is, the connecting groove 12 extends upward from the bottom end face of the filling block. The connecting groove 12 connects each of the air inlet holes 11, that is, the connecting groove 12 passes through each of the air inlet holes 11. When the size of the filling block body 1 is slightly smaller than the inner cavity size of the helium pressurized tank, the gap size between the outer wall of the filling block body 1 and the inner cavity of the helium pressurized tank is small, and helium is not easy to enter the air inlet hole 11 from the bottom of the helium pressurized tank, resulting in a long time for helium to fill the inner cavity of the helium pressurized tank, and the efficiency of the air tightness test is low. The setting of the connecting groove 12 can make it easier for helium to enter each of the air inlet holes 11 from the bottom of the helium pressurized tank, thereby improving the air intake effect of the accommodating cavity 13 and the efficiency of the air tightness test. Furthermore, the depth of the connecting groove 12 on the outer wall of the filling block body 1 is relatively shallow, and the volume and space occupied by this part of the connecting groove 12 are relatively small, so the amount of helium required to be introduced is relatively small, and no waste of helium is caused.
[0030] In one embodiment, if Figure 2 , Figure 3 , Figure 5 As shown, a bypass groove 14 for avoiding the top cover of the helium pressurized tank is provided on the end face of one axial end of the filling block body 1. Specifically, a bypass groove 14 for avoiding the top cover of the helium pressurized tank is provided on the top end face of the filling block body 1. In order to increase the volume occupied by the filling block body 1 in the inner cavity of the helium pressurized tank, the height of the filling block body 1 is slightly smaller than the height of the inner cavity of the helium pressurized tank. After the filling block body 1 is loaded into the inner cavity of the helium pressurized tank, the top cover of the helium pressurized tank needs to be covered and tightened by rotation. A protrusion is provided at the bottom of the top cover of the helium pressurized tank. The shape of the bypass groove 14 is the same as that of the protrusion and can avoid the protrusion, so as to avoid the protrusion from interfering with the top of the filling block body 1 and causing the top cover of the helium pressurized tank to be unable to be tightened, thereby improving the accuracy of the airtightness test.
[0031] In one embodiment, if Figure 2 and Figure 3 As shown, the avoidance groove 14 is fan-shaped. When the top cover of the helium pressure tank is tightened, the protrusion moves with the top cover of the helium pressure tank in the fan-shaped avoidance groove 14, avoiding interference between the protrusion and the top of the filling block body 1, and facilitating the tightening and unlocking of the top cover of the helium pressure tank.
[0032] In one embodiment, if Figure 2 and Figure 3 As shown, the avoidance groove 14 is communicated with the accommodating chamber 13. The side of the avoidance groove 14 close to the accommodating chamber 13 is communicated with the accommodating chamber 13.
[0033] In one embodiment, if Figure 3 and Figure 5As shown, a helium contact groove 15 is provided at the bottom of the accommodating cavity 13, that is, a helium contact groove 15 is provided on the inner bottom wall of the filling block body 1, and the air inlet 11 is connected to the helium contact groove 15. The helium contact groove 15 is a circular groove and is arranged in the middle of the inner bottom wall of the filling block body 1. The diameter of the helium contact groove 15 is smaller than the outer diameter of the bottom of the test net cup, so that the bottom of the test net cup is arranged above the helium contact groove 15, that is, there is a gap between the bottom of the test net cup and the helium contact groove 15. The setting of the helium contact groove 15 allows helium to enter the helium contact groove 15 through the air inlet 11, and enter the test net cup from the bottom of the test net cup above the helium contact groove 15, so that the helium is fully in contact with the quartz crystal oscillator.
[0034] In one embodiment, if Figure 2 and Figure 3 As shown, the accommodating chamber 13 is a cylindrical accommodating chamber 13, which is the same shape as the test net cup, so that the test net cup can enter the accommodating chamber 13 conveniently, and can also reduce the idle space of the accommodating chamber 13, further reducing the waste of helium.
[0035] This embodiment also provides a helium pressurized tank, including the helium pressurized tank filling block as described in the above embodiment.
[0036] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A helium pressurized tank filling block, characterized in that: It comprises a filling block body, wherein a receiving cavity is arranged in the filling block body, and the receiving cavity is used to receive a test net cup equipped with a quartz crystal oscillator. An air inlet is arranged on the outer side wall of the filling block body, and the air inlet is communicated with the receiving cavity.
2. The helium pressurized tank filling block according to claim 1, characterized in that: The filling block body is a cylinder.
3. The helium pressurized tank filling block according to claim 2, characterized in that: The number of the air inlet holes is multiple and they are arranged along the axial direction and / or circumferential direction of the outer side wall of the filling block body.
4. The helium pressurized tank filling block according to claim 3, characterized in that: A communication groove is provided on the outer side wall of the filling block body, the communication groove extends to an end surface of the filling block body along the axial direction, and the communication groove is connected with each of the air inlet holes.
5. The helium pressurized tank filling block according to claim 1, characterized in that: An escape groove for escaping the top cover of the helium gas pressurized tank is arranged on an end surface of one end of the filling block body along the axial direction.
6. The helium pressurized tank filling block according to claim 5, characterized in that: The avoidance groove is fan-shaped.
7. The helium pressurized tank filling block according to claim 5, characterized in that: The avoidance groove is communicated with the accommodating cavity.
8. The helium pressurized tank filling block according to claim 1, characterized in that: A helium contact groove is arranged at the bottom of the accommodating cavity, and the air inlet hole is communicated with the helium contact groove.
9. The helium pressurized tank filling block according to claim 1, characterized in that: The accommodating cavity is a cylindrical accommodating cavity.
10. A helium pressurized tank, characterized in that: It comprises the filling block for the helium pressurized tank as claimed in any one of claims 1 to 9.