Side pushing structure and air tightness detection equipment

Abstract

The application provides a side pushing structure and air tightness detection equipment. A driving member moves in a first direction to drive a first shell to move in a direction close to a second shell, to drive a first wedge to extrude a second wedge, to drive the second wedge to generate a pushing force in a second direction and act on a microphone assembly, to abut the microphone assembly on a plugging assembly, and to form a seal between the microphone assembly and the plugging assembly. Since the driving member is used to drive the first shell and the first wedge to move, and the first wedge in turn pushes the second wedge to seal the microphone assembly, the overall structure is more miniaturized. The first wedge and the second wedge are extruded, thereby pushing the microphone assembly and the plugging assembly to be extruded and sealed in the second direction, which can completely avoid the problem of pushing displacement caused by the rotation of the main shaft in the prior art, and in turn can better plug the microphone assembly and the plugging assembly, so that the sealing detection result is more accurate.

Description

Technical Field

[0001] This application relates to the field of airtightness testing equipment, and more particularly to a side-push structure and an airtightness testing device. Background Technology

[0002] With increasing demands for waterproofing in electronic devices, airtightness testing is often required for certain components during the manufacturing process to ensure their airtightness. Examples include testing the sealing of USB ports, microphone holes, and speaker holes to guarantee the overall airtightness of the electronic device.

[0003] Traditional leak testing often uses a hydrostatic method, where parts are submerged in water and the presence of air bubbles on their surface is observed to determine their leak resistance. However, this method has drawbacks:

[0004] 1. Because some parts contain circuits or metal components, if there is an airtightness problem when they are fully immersed in water, water will directly enter the interior and come into direct contact with the circuit parts inside the parts, thus rendering the parts unusable.

[0005] Second, due to the surface tension of liquids, when there are tiny pores on the parts, they will not enter the parts under the action of surface tension, thus causing errors in the airtightness test results.

[0006] Third, when testing for air tightness using water, it is often done manually to determine air tightness issues. However, manual judgment is subject to subjective factors, which leads to inconsistent test results and inaccurate results.

[0007] Chinese patent discloses a microphone sealing mechanism with patent number CN217957307U, which includes a side pressure module, a downward pressure module and a slide module, thereby sealing the microphone's speaker hole and then testing its sealing performance.

[0008] During use, the end is sealed by the plug drive device of the pressure module, and then the push drive device (cylinder) of the side pressure module is used to push it. The push block presses and seals the microphone on the side of the product to ensure the airtightness. Finally, a sealing test is performed to achieve the airtightness test.

[0009] Regarding the microphone sealing mechanism, although side-pressure modules and bottom-pressure modules are used to seal the parts to ensure sealing performance, the cylinder of the side-pressure module requires a large movement space and installation space, making the entire sealing mechanism very large. Furthermore, it is prone to interference with other components, which can easily lead to errors in the sealing performance test results.

[0010] Secondly, when the cylinder of the side pressure module moves along the main shaft, it will rotate slightly due to the gas pressure. This causes the connected main shaft to rotate slightly along its axis. Since the push block is fixedly connected to the main shaft, the rotating main shaft will drive the push block to rotate as well, which will cause the push block to be displaced. This will prevent the push block from effectively sealing, resulting in a large error in the sealing test results.

[0011] The use of a cylinder-driven side-push sealing structure is a common method in the industry. However, in actual testing, the airtightness of a microphone is usually tested by filling or extracting gas into the entire device. The overall sealing effect of the microphone is then judged based on the overall airtightness test data, rather than testing the airtightness of a specific part or section of the microphone.

[0012] However, when testing the airtightness of the entire device, it is impossible to accurately measure the airtightness of specific locations. Only the overall airtightness data can be used to evaluate the airtightness of the entire electronic device, and it is impossible to further judge the local locations that need to be tested.

[0013] When using a microphone, the user faces it directly, and the microphone picks up sound through the diaphragm at one end. During speech, droplets may be expelled. Because testing often only focuses on the microphone's external structure and neglects the airtightness of this pickup end, droplets can enter the microphone over time, causing the diaphragm to become damp and reducing its pickup performance. Droplets can also cause internal capacitors to fail or short-circuit the internal amplification circuitry, rendering the microphone unusable. Summary of the Invention

[0014] In view of this, it is necessary to provide a side-push structure and an airtightness testing device to solve the above problems.

[0015] An embodiment of this application provides a side-pushing structure, the side-pushing structure comprising:

[0016] Drive components;

[0017] A first housing has a first wedge block on one side and is fixedly connected to the driving member on the other side. The driving member drives the first housing to move along a first direction.

[0018] The second housing has an internal mounting position and a movable cavity communicating with the mounting position;

[0019] The second wedge is slidably installed in the movable cavity and moves along the second direction, wherein the first direction is perpendicular to the second direction;

[0020] A sealing component is disposed at the mounting position;

[0021] The driving member moves along the first direction to drive the first housing to move closer to the second housing, thereby causing the first wedge to press against the second wedge, which in turn causes the second wedge to generate a thrust along the second direction and act on the microphone assembly, thereby bringing the microphone assembly against the sealing assembly and forming a seal between the microphone assembly and the sealing assembly.

[0022] In at least one embodiment of this application, the first wedge has a first inclined surface, and the second wedge has a second inclined surface on the side of the first wedge.

[0023] In at least one embodiment of this application, the active cavity includes a first position close to the blocking component and a second position away from the blocking component, wherein the projection of the first inclined surface in the first direction is located between the first position and the second position.

[0024] In at least one embodiment of this application, in the second direction, the distance from the first inclined plane to the second position is denoted as a; the projected length of the second inclined plane in the second direction is denoted as d;

[0025] When the second wedge is in the first position, the distance from the end of the second inclined surface away from the sealing assembly to the first position is denoted as b;

[0026] Let c be the distance between the first position and the second position, which satisfies the following relationship: 2b≥c>b≥a, and b>d>a.

[0027] In at least one embodiment of this application, the first inclined plane and the second inclined plane are inclined in the same direction;

[0028] The second wedge has a second inclined surface on the side away from the sealing assembly, and the second inclined surface is formed at an angle towards the side close to the sealing assembly.

[0029] In at least one embodiment of this application, the side-pushing structure further includes:

[0030] A guide rod is disposed within the movable cavity and arranged along the second direction; the second wedge is slidably connected to the guide rod.

[0031] The elastic element has one end abutting against the inner wall of the movable cavity near the sealing assembly, and the other end abutting against the second wedge.

[0032] In at least one embodiment of this application, the blocking component includes:

[0033] An abutment is installed in the mounting position, and a positioning groove is provided on the side of the abutment near the second wedge;

[0034] A flexible sealing element is disposed within the positioning groove and is used to seal the connection between the microphone assembly and the abutment element.

[0035] In at least one embodiment of this application, the abutting member is provided with a protrusion, the positioning groove is provided around the protrusion, and the protrusion is provided with a communicating hole;

[0036] The second housing has a first gas channel and a second gas channel, one end of the first gas channel is connected to the connecting hole, and the other end is connected to the outside;

[0037] One end of the second gas passage is connected to the outside, and the other end is connected to the mounting position.

[0038] In at least one embodiment of this application, the second housing has an arc-shaped groove and a receiving groove communicating with both ends of the arc-shaped groove on the side near the first housing. The receiving groove and the arc-shaped groove form an annular groove, and the annular groove surrounds the mounting position and the movable cavity.

[0039] The side-push structure also includes:

[0040] The first sealing element is disposed in the arc-shaped groove, and both ends extend into the receiving groove;

[0041] The second sealing element is disposed in the receiving groove and is detachably connected to both ends of the first sealing element to seal the connection between the first housing and the second housing;

[0042] A guide rod is disposed on the first housing, and a guide hole is provided on the second housing, with the guide rod corresponding to the guide hole.

[0043] An airtightness testing device, comprising a side-push structure as described in any one of the above;

[0044] The airtightness testing equipment also includes:

[0045] The frame has a receiving position, and the side push structure is provided on the receiving position;

[0046] An airtightness testing component is disposed on the receiving position and is connected to the side-push structure.

[0047] The side-push structure and airtightness testing equipment implemented in this embodiment will have at least the following beneficial effects:

[0048] 1. The side-push structure and airtightness testing device provided above use a driving component to drive the first housing and the first wedge to move, and the first wedge then pushes the second wedge to seal the microphone assembly, thereby making the overall structure more compact.

[0049] 2. The side-push structure and airtightness testing equipment provided above use a single driving component for pushing, so that the entire side-push structure only needs a single driving component to achieve compression and sealing in the first and second directions. This avoids interference with other components due to the large size of the structure, thereby ensuring more accurate results in the airtightness test.

[0050] 3. The side-push structure and airtightness testing equipment provided above, since the first wedge and the second wedge are both located inside the first housing and the second housing, make the overall structure more compact and the overall side-push structure more airtight. For small microphone components, the airtightness test results are more accurate.

[0051] 4. The side-push structure and airtightness testing equipment provided above adopt the method of pressing the first wedge and the second wedge to push the microphone assembly and the sealing assembly to press and seal in the second direction. This can completely avoid the problem of push displacement caused by the rotation of the main shaft in the prior art, and thus better seal the microphone assembly and the sealing assembly, making the airtightness test results more accurate.

[0052] 5. When testing a microphone assembly requiring airtightness testing, high-pressure gas is introduced through the first gas channel and the connecting hole to perform airtightness testing on the end of the microphone assembly within the independent space. Simultaneously, high-pressure gas is injected into the movable cavity through the second gas channel to perform airtightness testing on the entire microphone assembly. This two simultaneous injections of high-pressure gas allow for simultaneous airtightness testing of both the entire microphone assembly and the end requiring airtightness testing, obtaining airtightness results for both the overall microphone assembly and its ends, thus accurately determining the airtightness of different parts of the microphone.

[0053] A single operation can simultaneously perform airtightness testing on both the entire microphone assembly and specific areas, thereby improving testing efficiency.

[0054] 6. When testing the airtightness of the microphone assembly, the driving component moves closer to the second housing along the first direction. The driving component drives the first housing closer to the second housing. At the same time, the first wedge on the first housing moves closer to the second wedge on the second housing. When the first wedge and the second wedge come into contact, the first wedge pushes the second wedge to move along the second direction, thereby pushing the microphone assembly to seal with the flexible sealing component, and thus separating the space at one end of the microphone assembly and the flexible sealing component from the active cavity into two independent spaces.

[0055] Then, high-pressure gas is injected into the first gas channel, and the high-pressure gas enters the connecting hole through the first gas channel to perform an airtightness test on the end of the microphone assembly. At the same time, high-pressure gas is introduced through the second gas channel, and the high-pressure gas enters the active cavity through the second gas channel to perform an airtightness test on the entire microphone assembly, thereby obtaining two airtightness test data. The airtightness results of the entire microphone assembly and its end can be accurately determined by the two airtightness test data. Attached Figure Description

[0056] Figure 1 This is a structural diagram of the side-push structure in this invention;

[0057] Figure 2 for Figure 1 Exploded view of the center-side thrust structure;

[0058] Figure 3 for Figure 2 Structural diagram of the second shell in the middle;

[0059] Figure 4 for Figure 2 Structural diagram of the first shell in the middle;

[0060] Figure 5 for Figure 2 Structural diagram of the second wedge block;

[0061] Figure 6 for Figure 2 Structural diagram of the central sealing component;

[0062] Figure 7 for Figure 2 Structural diagram of the second seal;

[0063] Figure 8 for Figure 2 Structural diagram of the first sealing element;

[0064] Figure 9 for Figure 6 Exploded view of the central plugging component;

[0065] Figure 10 for Figure 1 A cross-sectional view of the middle section (reference diagram of the usage state when the first and second housings are sealed);

[0066] Figure 11 for Figure 10 Another sectional view of the middle section structure;

[0067] Figure 12 This is a structural diagram of the airtightness testing equipment;

[0068] Figure 13for Figure 12 Exploded view of the air tightness testing equipment;

[0069] Figure 14 A schematic diagram of one embodiment of an airtightness testing device for airtightness testing.

[0070] Explanation of main component symbols

[0071] 100. Side-push structure;

[0072] 110. Driving components;

[0073] 120. First shell; 121. First wedge; A. First direction; 1211. First inclined plane;

[0074] 130, Second housing; 130a, Mounting position; 130b, Movable cavity; 130c, First position; 130d, Second position; B, Second direction; 130e, First gas passage; 130f, Second gas passage; 130g, Guide hole; 130h, Arc groove; 130i, Receiving groove; 130j, Annular groove;

[0075] 140. Second wedge; 141. Second inclined plane;

[0076] 150. Sealing component; 151. Abutment; 1511. Protrusion; 1511a. Connecting hole; 151a. Positioning groove; 152. Flexible sealing component;

[0077] 160. Guide rod; 161. Elastic element;

[0078] 170. First seal; 171. Second seal; 172. Guide rod;

[0079] 180. Air tightness testing equipment;

[0080] 181. Frame; 181a. Storage location; 182. Air tightness testing component;

[0081] 200. Microphone assembly. Detailed Implementation

[0082] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0083] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0084] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0085] An embodiment of this application provides a side-pushing structure 100, the side-pushing structure 100 comprising:

[0086] Drive component 110;

[0087] The first housing 120 has a first wedge 121 on one side and is fixedly connected to the driving member 110 on the other side. The driving member 110 drives the first housing 120 to move along the first direction A.

[0088] The second housing 130 has an internal mounting position 130a and a movable cavity 130b communicating with the mounting position 130a.

[0089] The second wedge 140 is slidably installed in the movable cavity 130b and moves along the second direction B, wherein the first direction A and the second direction B are perpendicular to each other.

[0090] A sealing component 150 is disposed on the mounting position 130a;

[0091] The driving member 110 moves along the first direction A to drive the first housing 120 to move closer to the second housing 130, thereby causing the first wedge 121 to press against the second wedge 140, thereby causing the second wedge 140 to generate a thrust along the second direction B and act on the microphone assembly 200, thereby bringing the microphone assembly 200 against the sealing assembly 150, so that a seal is formed between the microphone assembly 200 and the sealing assembly 150.

[0092] Please refer to Figures 1-11 In this embodiment, before testing, one end of the microphone assembly 200 is placed on the mounting position 130a and the other end is placed in the active cavity 130b; then the drive unit 110 is activated, and the drive unit 110 moves along the first direction A toward the direction close to the second housing 130, so as to drive the first wedge 121 toward the direction close to the second wedge 140.

[0093] When the first wedge 121 abuts against the second wedge 140, the drive member 110 continues to move, so that the first wedge 121 continues to move along the first direction A. Under the compression of the first wedge 121, the second wedge 140 moves along the second direction B and generates a thrust on the microphone assembly 200. When the drive member 110 drives the first housing 120 to abut against the second housing 130, under the action of the first wedge 121, the second wedge 140 generates a compressive force on the microphone assembly 200 to abut against the sealing assembly 150, so that a seal is formed between the microphone assembly 200 and the sealing assembly 150. Finally, an airtightness test is performed to ensure the results of the airtightness test.

[0094] Because the first housing 120 and the first wedge 121 are driven by the drive element 110 to move, and the first wedge 121 in turn pushes the second wedge 140 to seal the microphone assembly 200, the overall structure is made more compact.

[0095] Secondly, since a single driving component 110 is used for pushing, the entire side-pushing structure 100 only needs a single driving component 110 to achieve compression and sealing in the first direction A and the second direction B, avoiding interference with other components due to the large size of the structure, thereby ensuring more accurate sealing test results.

[0096] Meanwhile, since the first wedge 121 and the second wedge 140 are both located inside the first housing 120 and the second housing 130, the overall structure is more compact, and the overall side-push structure 100 has better sealing performance. For the small microphone assembly 200, the sealing performance test results are more accurate.

[0097] By using the compression method of the first wedge 121 and the second wedge 140, the microphone assembly 200 and the sealing assembly 150 are pushed to compress and seal in the second direction B. This completely avoids the problem of push displacement caused by the rotation of the main shaft in the prior art, and thus can better seal the microphone assembly 200 and the sealing assembly 150, making the sealing test results more accurate.

[0098] It should be noted that the driving component 110 is a cylinder or a hydraulic cylinder; the first housing 120 is generally rectangular plate-shaped, and a cavity is formed by inward indentation on the side near the second housing 130; the first wedge 121 is generally a right-angled triangular block, the second wedge 140 is a right-angled triangular block, and the first wedge 121 and the second wedge 140 are set in opposite directions, with the hypotenuse of the first wedge 121 and the hypotenuse of the second wedge 140 being set opposite to each other.

[0099] The second housing 130 is generally a rectangular block, and the side of the second housing 130 near the first housing 120 is recessed inward to form a mounting position 130a and a movable cavity 130b. The mounting position 130a is generally a rectangular groove, the movable cavity 130b is generally a rectangular groove, and a connecting groove is formed between the movable cavity 130b and the mounting position 130a. The connecting groove is used to connect the movable cavity 130b and the mounting position 130a. One end of the microphone assembly 200 is placed in the movable cavity 130b and abuts against the second wedge 140, and the other end extends through the connecting groove into the mounting position 130a.

[0100] The first direction A is the extension and retraction direction of the drive member 110 (or the length direction or the vertical direction from the first housing 120 to the second housing 130), and is set perpendicular to the first housing 120.

[0101] In at least one embodiment of this application, the first wedge 121 is provided with a first inclined surface 1211, and the second wedge 140 is provided with a second inclined surface 141 on the side near the first wedge 121.

[0102] Please refer to Figures 1-11 In this embodiment, since the first wedge 121 is provided with a first inclined surface 1211, the second wedge 140 is provided with a second inclined surface 141 on the side close to the first wedge 121.

[0103] When the first wedge 121 abuts against the second wedge 140, the first inclined surface 1211 abuts against the second inclined surface 141. Since the first wedge 121 is fixed to the side of the first housing 120 near the second housing 130 by screws or bolts, when the driving member 110 drives the first housing 120, the first housing 120 will drive the first wedge 121 to move together towards the second housing 130.

[0104] When the first inclined surface 1211 of the first wedge 121 abuts against the second inclined surface 141 of the second wedge 140, since the second wedge 140 is slidably installed in the movable cavity 130b and slidably connected to the second housing 130, the first inclined surface 1211 moves towards the second inclined surface 141 along the first direction A. This causes the first inclined surface 1211 to exert a force along the first direction A on the second inclined surface 141. After the force along the first direction A acts on the second inclined surface 141, the component force on the second inclined surface 141 will push the second wedge 121... 40 moves along the second direction B toward the side closer to the sealing component 150. The second wedge 140 pushes the microphone component 200 in the movable cavity 130b to move toward the sealing component 150. When the first housing 120 and the second housing 130 abut against each other, the second wedge 140, under the force of the first wedge 121, abuts the microphone component 200 against the sealing component 150, so that the connection between the sealing component 150 and the microphone component 200 is sealed, thereby completing the seal between the microphone component 200 and the sealing component 150.

[0105] Finally, the airtightness of the microphone assembly 200 in the side-push structure 100 is tested.

[0106] As the first wedge 121 abuts against the second wedge 140, the end of the microphone assembly 200 is fixed to the sealing assembly 150, and the sealing assembly 150 and the end of the microphone assembly 200 form an effective seal, thereby improving the accuracy of airtightness detection.

[0107] It should be noted that, since the first wedge 121 pushes the second wedge 140 to slide within the movable cavity 130b by abutting, the second wedge 140 can abut the microphone assembly 200 against the sealing assembly 150 without the need for an additional power source, thereby achieving a seal between the microphone assembly 200 and the sealing assembly 150. This avoids the problem of excessive overall structural volume caused by an external power source.

[0108] At the same time, the first wedge 121 and the second wedge 140 are sealed between the first housing 120 and the second housing 130, which makes the overall sealing of the side thrust structure 100 better.

[0109] The microphone assembly 200 is abutted against the side of the second wedge 140 away from the first wedge 121, and then the microphone assembly 200 is abutted against the sealing assembly 150, so that a sealed connection is formed between the microphone assembly 200 and the sealing assembly 150. Since the microphone assembly 200 is fixed to the sealing assembly 150 by the second wedge 140 and the microphone assembly 200 through the surface to the surface, the sealing performance between the microphone assembly 200 and the sealing assembly 150 is guaranteed.

[0110] Secondly, since the second wedge 140 slides within the second housing 130 along the second direction B to abut the microphone assembly 200 against the sealing assembly 150, an effective seal is formed at the connection between the microphone assembly 200 and the sealing assembly 150. This avoids the problem of small-angle rotation caused by using a spindle or cylinder drive. Thus, the second wedge 140 can accurately position the microphone assembly 200 onto the sealing assembly 150, avoiding sealing problems caused by displacement, which would affect the error in the final airtightness test.

[0111] Please refer to Figures 1-14 In another embodiment, the microphone to be tested is placed on the mounting position 130a, with the end to be tested located on the mounting position 130a and the other end extending into the movable cavity 130b to abut against the second wedge 140.

[0112] When the drive unit 110 is activated, it drives the first housing 120 to move closer to the second housing 130, causing the first housing 120 to move the first wedge 121 closer to the second wedge 140. When the first wedge 121 and the second wedge 140 come into contact, the first inclined surface 1211 of the first wedge 121 comes into contact with the second inclined surface 141 of the second wedge 140. At this time, the first wedge 121 exerts a pushing force on the second wedge 140 in the first direction A. Since the pushing force acts on the second inclined surface 141 of the second wedge 140, the second wedge 140 will move along the second direction B towards the sealing assembly 150, thereby pushing the microphone.

[0113] When the first housing 120 abuts against the second housing 130, under the force of the first wedge 121, the second wedge 140 abuts the end of the microphone that needs to be tested against the flexible sealing member 152, so that the end of the microphone that needs to be tested forms a sealed connection with the abutting member 151 through the flexible sealing member 152. The part of the space at the mounting position 130a (referred to as the "independent space" in the following text) (i.e. the end of the microphone that needs to be tested for airtightness and the abutting member 151) forms an independent space. This space is connected to the connecting hole 1511a and is independent of the movable cavity 130b.

[0114] At the same time, the first seal 170 and the second seal 171 seal the connection between the first housing 120 and the second housing 130 so that the movable cavity 130b forms a sealed space.

[0115] When testing a microphone assembly that requires airtightness testing, high-pressure gas is introduced through the first gas channel 130e and the connecting hole 1511a to perform airtightness testing on the end of the microphone assembly within the independent space that requires airtightness testing. Simultaneously, high-pressure gas is injected into the movable cavity 130b through the second gas channel 130f to perform airtightness testing on the entire microphone assembly. This allows for two simultaneous injections of high-pressure gas, and the airtightness testing device 180 performs airtightness testing on both the entire microphone assembly and the end requiring airtightness testing simultaneously to obtain the airtightness results of the entire microphone assembly and its end, thereby accurately determining the airtightness degree of different parts of the microphone.

[0116] A single operation can simultaneously perform airtightness testing on both the entire microphone assembly and specific areas, thereby improving testing efficiency.

[0117] It should be noted that the existing testing method is used in the air tightness test. High-pressure gas is generated by an air compressor and then injected into the independent space and the active cavity 130b through an air pump, the first gas channel 130e and the second gas channel 130f respectively. Then, the air pressure in these two spaces is detected by an air pressure sensor and an air tightness tester to detect the air tightness of the microphone as a whole and the end to be tested.

[0118] In at least one embodiment of this application, the active cavity 130b includes a first position 130c near the blocking assembly 150 and a second position 130d away from the blocking assembly 150, and the projection of the first inclined surface 1211 in the first direction A is located between the first position 130c and the second position 130d.

[0119] Please refer to Figures 1-11 In this embodiment, before sealing, the drive member 110 moves, causing the drive member 110 to move along the first direction A, driving the first housing 120 to move along the first direction A. The first housing 120 approaches the second housing 130. At this time, the second wedge 140 is located at the second position 130d.

[0120] When the driving member 110 drives the first wedge 121 to abut against the second wedge 140, since the first wedge 121 is fixed on the first housing 120 and the second wedge 140 is slidably installed in the movable cavity 130b, when the first inclined surface 1211 abuts against the second inclined surface 141, the force of the first wedge 121 along the first direction A will act on the second wedge 140, and the component of the force on the second inclined surface 141 will push the second wedge 140 along the second direction B, thereby pushing the second wedge 140 to the first position 130c.

[0121] When the driving member 110 drives the first housing 120 to abut against the second housing 130, the second wedge 140 is pushed to the first position 130c under the force of the first wedge 121, so as to abut the microphone assembly 200 against the sealing assembly 150, thereby forming a seal between the microphone assembly 200 and the sealing assembly 150.

[0122] Finally, the microphone assembly 200 was tested for airtightness.

[0123] After the airtightness test is completed, the drive component 110 moves along the first direction A and away from the second housing 130 to drive the first housing 120 to separate from the second housing 130. The first housing 120 and the second housing 130 are separated so that the microphone assembly 200 can be removed from the second housing 130.

[0124] As the second wedge 140 moves from the second position 130d to the first position 130c under the action of the first wedge 121, it pushes one end of the microphone assembly 200 located in the movable cavity 130b, thereby pushing the other end of the microphone assembly 200 onto the sealing assembly 150, completing the seal between the end of the microphone assembly 200 and the sealing assembly 150, so as to facilitate subsequent airtightness testing. This avoids the possibility of gaps between the microphone assembly 200 and the sealing assembly 150 affecting subsequent airtightness testing.

[0125] In at least one embodiment of this application, the distance from the first inclined plane 1211 to the second position 130d in the second direction B is denoted as a; the projection length of the second inclined plane 141 in the second direction B is denoted as d.

[0126] When the second wedge 140 is located at the first position 130c, the distance from the end of the second inclined surface 141 away from the sealing assembly 150 to the first position 130c is denoted as b;

[0127] The distance from the first position 130c to the second position 130d is denoted as c, which satisfies the relationship: 2b≥c>b≥a, and b>d>a.

[0128] Please refer to Figures 1-11In this embodiment, because in the second direction B, when the second wedge 140 is located at the second position 130d, there exists a relationship b > d > a, so when the driving member 110 drives the first wedge 121 to move in the first direction A, when the first wedge 121 moves closer to the second housing 130, the first inclined surface 1211 and the second inclined surface 141 can abut. After the first inclined surface 1211 abuts with the second inclined surface 141, because the relationship 2b ≥ c > b ≥ a is satisfied, the driving member 110 continues to move closer to the second housing in the first direction A. At 130, the downward force of the driving member 110 passes through the first inclined surface 1211 and abuts against the second inclined surface 141, thereby converting the downward force of the driving member 110 into a force on the second inclined surface 141, which in turn pushes the second wedge block 140 closer to the sealing assembly 150 along the second direction B, so as to push the microphone assembly 200 to move towards the sealing assembly 150. When the first housing 120 and the second housing 130 abut and seal, the microphone assembly 200 is abutted against the sealing assembly 150, thereby achieving the effect of single-power bidirectional sealing.

[0129] Due to the single-power bidirectional sealing effect, the overall side-push structure 100 is smaller in size. Simultaneously, the microphone assembly 200 is pressed against the sealing assembly 150 by the first inclined surface 1211 and the second inclined surface 141, pushing the second wedge block 140. Because the first inclined surface 1211 and the second inclined surface 141 are in surface contact, and under the action of the first inclined surface 1211 and the second inclined surface 141, the second wedge block 140 slides along the second direction B within the movable cavity 130b, thus avoiding the rotational displacement problem caused by traditional methods, improving the sealing effect, and preventing rotational displacement even after long-term use.

[0130] In at least one embodiment of this application, the first inclined surface 1211 and the second inclined surface 141 are inclined in the same direction;

[0131] The second wedge 140 has a second inclined surface 141 on the side away from the sealing assembly 150, and the second inclined surface 141 is formed inclined towards the side closer to the sealing assembly 150.

[0132] Please refer to Figures 1-11In this embodiment, since the first inclined surface 1211 and the second inclined surface 141 are inclined in the same direction, and the second inclined surface 141 is located on the side away from the sealing component 150, the second inclined surface 141 is inclined towards the side closer to the sealing component 150. This allows the first inclined surface 1211 to push the second inclined surface 141 to move, so that the downward abutting force of the first wedge 121 can act on the second wedge 140 and squeeze the microphone component 200 along the second direction B to form a seal at the connection between the microphone component 200 and the sealing component 150. This can effectively achieve the sealing of the end of the microphone component 200 close to the sealing component 150, avoiding the problem of inaccurate airtightness test results due to the gap between the microphone component 200 and the sealing component 150.

[0133] In at least one embodiment of this application, the side-pushing structure 100 further includes:

[0134] A guide rod 160 is disposed in the movable cavity 130b and is arranged along the second direction B. The second wedge block 140 is slidably connected to the guide rod 160.

[0135] The elastic element 161 has one end abutting against the inner wall of the movable cavity 130b near the sealing assembly 150, and the other end abutting against the second wedge 140.

[0136] Please refer to Figures 1-11 In this embodiment, when the first wedge 121 presses the second wedge 140, since the second wedge 140 is slidably connected to the guide rod 160 and the length direction of the guide rod 160 is set along the second direction B, the second wedge 140 slides in the movable cavity 130b along the length direction of the guide rod 160 in the second direction B under the force of the first wedge 121, so as to push the microphone assembly 200 and push the microphone assembly 200 to abut against the sealing assembly 150, so as to achieve the sealing of the connection between the microphone assembly 200 and the sealing assembly 150.

[0137] When the drive member 110 moves away from the second housing 130 along the first direction A, the first wedge 121 moves away from the second wedge 140 along the first direction A. Since one end of the elastic member 161 abuts against the inner wall of the movable cavity 130b near the sealing assembly 150 and the other end abuts against the second wedge 140, when the second wedge 140 is not subjected to the force of the first wedge 121, the elastic member 161 pushes the second wedge 140 from the first position 130c to the second position 130d under the action of the elastic force, so as to release the microphone assembly 200 and facilitate the removal of the microphone assembly 200 from the second housing 130.

[0138] Because of the use of the elastic element 161, when the first wedge 121 disengages from the second wedge 140, the second wedge 140 can slide to the second position 130d under the elastic force of the elastic element 161, avoiding manual return and improving safety during the detection process.

[0139] It should be noted that the guide rod 160 is round and there are two of them. The two guide rods 160 are respectively set on both sides of the second wedge 140. The head and tail of the guide rod 160 are fixed to the inner wall of the movable cavity 130b, providing direction for the movement of the second wedge 140, preventing the second wedge 140 from being displaced, and guiding the second wedge 140 to slide accurately so as to apply precise squeezing force to the microphone assembly 200.

[0140] The elastic element 161 is a spring, and the elastic element 161 is sleeved on the guide rod 160.

[0141] In at least one embodiment of this application, the blocking assembly 150 includes:

[0142] Abutting member 151 is installed on the mounting position 130a, and a positioning groove 151a is provided on the side of the abutting member 151 near the second wedge block 140;

[0143] A flexible sealing member 152 is disposed in the positioning groove 151a and is used to block the connection between the microphone assembly 200 and the abutment member 151.

[0144] Please refer to Figures 1-11 In this embodiment, when the second wedge 140 pushes the microphone assembly 200 towards the sealing assembly 150, after the second wedge 140 reaches the first position 130c, the microphone assembly 200 is pushed to abut against the flexible sealing member 152. Under the action of the extrusion force, the microphone assembly 200 and the flexible sealing member 152 form a seal. The flexible sealing member 152 is installed in the positioning groove 151a of the abutment member 151, so that the connection between the microphone assembly 200 and the abutment member 151 is sealed by the flexible sealing member 152 to achieve lateral sealing, so as to facilitate the subsequent airtightness test of the microphone assembly 200.

[0145] It should be noted that the flexible sealing element 152 is made of a flexible sealing material, such as silicone or rubber, and the flexible sealing element 152 is roughly annular.

[0146] The abutment 151 is a rectangular block and is fixed to the mounting position 130a by screws. The positioning groove 151a is an annular groove and is opened along the second direction B.

[0147] In at least one embodiment of this application, the abutment 151 is provided with a protrusion 1511, the positioning groove 151a is provided around the protrusion 1511, and the protrusion 1511 is provided with a connecting hole 1511a.

[0148] The second housing 130 has a first gas channel 130e and a second gas channel 130f. One end of the first gas channel 130e is connected to the connecting hole 1511a, and the other end is connected to the outside.

[0149] The second gas channel 130f is connected to the outside at one end and to the mounting position 130a at the other end.

[0150] Please refer to Figures 1-11 In this embodiment, when the first housing 120 and the second housing 130 are sealed under the drive of the drive member 110, the second wedge 140 is located at the first position 130c and presses the microphone assembly 200 along the second direction B, fixing the end of the microphone assembly 200 that needs to be tested onto the flexible sealing member 152, so that the flexible sealing member 152 fills the space between the microphone assembly 200 and the abutment member 151 to achieve a lateral seal.

[0151] Then, the airtightness testing element 182 injects high-pressure gas into the mounting position 130a through the second gas channel 130f, thereby performing an airtightness test on the microphone assembly 200 on the mounting position 130a; at the same time, the mounting position 130a is connected to the connecting hole 1511a through the microphone assembly 200, so that during the airtightness test, the end of the microphone assembly 200 near the sealing component 150 can be tested for airtightness. The second gas channel 130f is equipped with a device for measuring air pressure to test the airtightness.

[0152] This allows for simultaneous airtightness testing of the entire microphone assembly 200 and the ends requiring testing, achieving synchronous testing and improving the efficiency of airtightness testing.

[0153] After the airtightness test is completed, exhaust gas is released through the first gas channel 130e to complete the airtightness test.

[0154] Because a single driving source is used to seal the first direction A and the second direction B, the overall volume is smaller. At the same time, since the first wedge 121 and the second wedge 140 are located between the first housing 120 and the second housing 130, during sealing, the first wedge 121 and the second wedge 140 internally compress the microphone assembly 200 to achieve a lateral seal, thereby better ensuring the overall airtightness.

[0155] Secondly, the first wedge 121 and the second wedge 140 are located between the first housing 120 and the second housing 130, and will not interfere with other components during the airtightness test.

[0156] It should be noted that the protrusion 1511 is a rectangular block. When the microphone assembly 200 comes into contact with the flexible sealing member 152, the microphone assembly 200 will partially enter the positioning groove 151a, resulting in better sealing.

[0157] The connecting hole 1511a is a through hole used for airtightness testing and also facilitates subsequent gas discharge.

[0158] Both the first gas channel 130e and the second gas channel 130f are through channels. The first gas channel 130e is used to detect airtightness and exhaust. The second gas channel 130f is used as a channel for the airtightness testing component 182 to inject high-pressure gas into the mounting position 130a.

[0159] In at least one embodiment of this application, the second housing 130 is provided with an arc-shaped groove 130h and a receiving groove 130i communicating with both ends of the arc-shaped groove 130h on the side near the first housing 120. The receiving groove 130i and the arc-shaped groove 130h form an annular groove 130j. The annular groove 130j is arranged around the mounting position 130a and the movable cavity 130b.

[0160] The side thrust structure 100 also includes:

[0161] The first sealing element 170 is disposed in the arc-shaped groove 130h, and both ends extend into the receiving groove 130i;

[0162] The second sealing member 171 is disposed in the receiving groove 130i and is detachably connected to both ends of the first sealing member 170 to seal the connection between the first housing 120 and the second housing 130.

[0163] A guide rod 172 is disposed on the first housing 120, and a guide hole 130g is provided on the second housing 130, with the guide rod 172 corresponding to the guide hole 130g.

[0164] Please refer to Figures 1-11 In this embodiment, when the first housing 120 abuts against the second housing 130, the first housing 120 presses the first seal 170 and the second seal 171 along the first direction A, so that the first housing 120 and the second housing 130 are sealed through the first seal 170 and the second seal 171, so as to ensure the sealing of the movable cavity 130b and the mounting position 130a.

[0165] The guide rod 172 is used to guide the first housing 120. When the first housing 120 approaches the second housing 130 along the first direction A, the guide rod 172 is inserted into the guide hole 130g under the movement of the first housing 120 to achieve precise alignment and avoid the problem of displacement caused by deviation between the first housing 120 and the second housing 130.

[0166] It should be noted that the first seal 170 and the second seal 171 together form a sealing ring to seal the connection between the first housing 120 and the second housing 130, thereby avoiding the gap between the first housing 120 and the second housing 130 that would affect the subsequent airtightness test.

[0167] The first sealing element 170 is generally arc-shaped and made of flexible rubber or silicone material. The second sealing element 171 is generally rectangular and has two slots. The two ends of the first sealing element 170 are respectively engaged in the two slots so that the first sealing element 170 and the second sealing element 171 form an integral whole and surround the movable cavity 130b and the mounting position 130a to ensure the sealing of the movable cavity 130b and the mounting position 130a.

[0168] In existing technology, a separate mold is required to form the combination of the first seal 170 and the second seal 171, and it needs to be customized separately.

[0169] In this technical solution, a groove is made on the second seal 171, and then the annular sealing ring is directly cut to match and form a combined seal. During manufacturing, only the second seal 171 needs to be produced separately, without the need to open a mold for the whole seal.

[0170] The second seal 171 is used to seal the connection between the first housing 120 and the second housing 130, preventing sealing problems caused by gaps at the connection and thus ensuring accurate airtightness test results. This improves the accuracy of airtightness test results.

[0171] The guide rod 172 is a round rod, and a conical sealing gasket is provided at the end away from the first housing 120. The guide hole 130g is a conical hole. The guide rod 172 abuts against the guide hole 130g to seal the connection.

[0172] An airtightness testing device 180 includes a side-push structure 100 as described in any one of the above;

[0173] The airtightness testing device 180 also includes:

[0174] The frame 181 has a receiving position 181a, and the side push structure 100 is disposed on the receiving position 181a;

[0175] An airtightness testing element 182 is disposed on the receiving position 181a and is connected to the side push structure 100.

[0176] Please refer to Figures 1-11 In this embodiment, during testing, the microphone assembly 200 is placed inside the second housing 130, with part of the microphone assembly 200 located in the active cavity 130b and the other part located at the mounting position 130a. The airtightness testing device 180 is activated, and the driving member 110 moves along the first direction A toward the second housing 130, causing the first housing 120 to move toward the second housing 130. At the same time, the first wedge 121 moves toward the second wedge 140. When the first wedge 121 abuts against the second wedge 140, the first wedge 121 pushes the second wedge 140. Under the action of the push, the second wedge 140 pushes the microphone assembly 200 toward the sealing assembly 150 from the second position 130d along the second direction B.

[0177] When the first housing 120 abuts against the second housing 130, the second wedge 140 is located at the first position 130c, pressing the microphone assembly 200 against the flexible sealing member 152. At this time, the flexible sealing member 152 laterally seals the microphone assembly 200 and the abutting member 151, and the first sealing member 170 and the second sealing member 171 seal the connection between the first housing 120 and the second housing 130.

[0178] Then, high-pressure gas is introduced into the airtightness testing component 182. The high-pressure gas enters the mounting position 130a through the second gas channel 130f to test the overall airtightness of the microphone assembly 200 at the mounting position 130a. At the same time, since the end of the microphone assembly 200 is located at the sealing component 150, the end of the microphone assembly 200 can be tested for airtightness to obtain more accurate airtightness results.

[0179] After the airtightness test is completed, exhaust is performed through the first gas channel 130e and the connecting hole 1511a. The driving member 110 drives the first housing 120 away from the second housing 130. At this time, the first wedge 121 moves away from the second wedge 140. Under the elastic force of the elastic member 161, the second wedge 140 slides on the guide rod 160 to release the microphone assembly 200.

[0180] It should be further explained that during the airtightness test, the overall airtightness of the microphone assembly 200 at the mounting position 130a can be tested through the first gas channel 130e, while the second gas channel 130f is vented to test the airtightness of the end of the microphone assembly 200 (the connection between the microphone assembly 200 and the sealing assembly 150) through the connecting hole 1511a. This allows for the simultaneous acquisition of overall and local airtightness test results, thereby improving the efficiency of the airtightness test.

[0181] It should be noted that the frame 181 is roughly a rectangular shell, and the accommodating position 181a is a cavity inside the frame 181; the airtightness testing device 182 is an existing pneumatic airtightness testing device 182, which judges the airtightness by high pressure gas and measuring the pressure of the gas.

[0182] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A side-pushing structure, characterized in that, The side-push structure includes: Drive components; A first housing has a first wedge on one side and is fixedly connected to the driving member on the other side. The driving member is used to drive the first housing to move along a first direction. The second housing has an internal mounting position and a movable cavity communicating with the mounting position; The second wedge is slidably installed in the movable cavity and moves along the second direction, wherein the first direction is perpendicular to the second direction; A sealing component is disposed at the mounting position; The driving member moves along the first direction to drive the first housing to move closer to the second housing, thereby causing the first wedge to squeeze the second wedge, which in turn causes the second wedge to generate a thrust along the second direction and act on the microphone assembly, thereby bringing the microphone assembly against the sealing assembly and forming a seal between the microphone assembly and the sealing assembly. The first wedge has a first inclined surface, and the second wedge has a second inclined surface on the side closest to the first wedge. The movable cavity includes a first position close to the sealing component and a second position away from the sealing component, and the projection of the first inclined surface in the first direction is located between the first position and the second position; In the second direction, the distance from the first inclined plane to the second position is denoted as a; the projected length of the second inclined plane in the second direction is denoted as d; When the second wedge is in the first position, the distance from the end of the second inclined surface away from the sealing assembly to the first position is denoted as b; The distance from the first position to the second position is denoted as c, which satisfies the following relationship: 2b≥c>b≥a, and b>d>a; The side-push structure also includes: A guide rod is disposed within the movable cavity and arranged along the second direction; the second wedge is slidably connected to the guide rod. The elastic element has one end abutting against the inner wall of the movable cavity near the sealing assembly, and the other end abutting against the second wedge; The blocking assembly includes: An abutment is installed in the mounting position, and a positioning groove is provided on the side of the abutment near the second wedge; A flexible sealing element is disposed within the positioning groove and is used to seal the connection between the microphone assembly and the abutment element; The abutting member has a protrusion, the positioning groove is arranged around the protrusion, and the protrusion has a connecting hole; The second housing has a first gas channel and a second gas channel, one end of the first gas channel is connected to the connecting hole, and the other end is connected to the outside; One end of the second gas passage is connected to the outside, and the other end is connected to the mounting position.

2. The side-pushing structure according to claim 1, characterized in that, The first inclined plane and the second inclined plane are inclined in the same direction; The second wedge has a second inclined surface on the side away from the sealing assembly, and the second inclined surface is formed at an angle towards the side close to the sealing assembly.

3. The side-pushing structure according to claim 1, characterized in that, The second housing has an arc-shaped groove and a receiving groove communicating with both ends of the arc-shaped groove on the side near the first housing. The receiving groove and the arc-shaped groove form an annular groove, and the annular groove surrounds the mounting position and the movable cavity. The side-push structure also includes: The first sealing element is disposed in the arc-shaped groove, and both ends extend into the receiving groove; The second sealing element is disposed in the receiving groove and is detachably connected to both ends of the first sealing element to seal the connection between the first housing and the second housing; A guide rod is provided on the first housing, and a guide hole is provided on the second housing, with the guide rod corresponding to the guide hole.

4. An airtightness testing device, characterized in that, Includes the side-push structure as described in any one of claims 1-3; The airtightness testing equipment also includes: The frame has a receiving position, and the side push structure is provided on the receiving position; An airtightness testing component is disposed on the receiving position and is connected to the side-push structure.

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