Lateral pushing structure and air tightness detection equipment

Abstract

The invention provides a side pushing structure and air tightness detection equipment, and a driving member moves along a first direction to drive a first housing to move towards a second housing so as to drive a first wedge block to extrude a second wedge block and to drive the second wedge block to generate a pushing force along a second direction and act on a microphone assembly. Therefore, the microphone assembly is abutted against the plugging assembly, and sealing is formed between the microphone assembly and the plugging assembly. The driving piece is adopted to drive the first shell and the first wedge block to move, and the first wedge block further pushes the second wedge block to seal the microphone assembly, so that the overall structure is more miniaturized. The microphone assembly and the plugging assembly are pushed to be extruded and sealed in the second direction by adopting an extrusion mode of the first wedge block and the second wedge block, so that the problem of pushing displacement caused by rotation of the main shaft in the prior art can be completely avoided, and the microphone assembly and the plugging assembly can be better plugged; and the sealing performance detection result is more accurate.

Description

Technical Field

[0001] This application relates to the field of airtightness detection equipment, and particularly to a side-pushing structure and an airtightness detection equipment. Background Art

[0002] With the requirements for the waterproof performance of electronic devices, during the production process of electronic devices, it is usually necessary to perform airtightness detection on some parts to ensure the airtightness of some parts in the electronic devices. For example: the sealing of USB holes, the airtightness detection of microphone holes and speaker holes, etc., to ensure the airtightness of the electronic devices.

[0003] For traditional airtightness detection, the water pressure method is often used for detection. By putting the parts into water, it is observed whether bubbles are generated on the surface of the parts to judge the airtightness of the parts. However, this method has drawbacks:

[0004] First, since there are circuits or metal components on some parts, when they are completely immersed in water, if there is an airtightness problem, the water will directly enter the interior, causing the water to directly contact the circuit part inside the parts, and then resulting in the scrapping of the parts and making them unusable.

[0005] Second, due to the surface tension of the liquid, when there are small air holes on the parts, under the action of the tension, the liquid will not enter the interior of the parts, resulting in errors in the airtightness detection results.

[0006] Third, when detecting airtightness through water, it is often observed manually to judge the airtightness problem, and manual judgment will have subjective factors, making the standards of the detection results inconsistent and causing inaccurate airtightness results.

[0007] A Chinese patent discloses a microphone sealing mechanism with the patent number CN217957307U, including: a side-pressing module, a downward-pressing module and a sliding table module, so as to block the speaker hole of the microphone and then detect its airtightness.

[0008] During use, the end is sealed by the plug driving device of the downward-pressing module, and then the side-pressing module's pushing driving device (cylinder) is used for pushing. The side microphone of the product is pressed and blocked by the pushing block to ensure airtightness, and finally a sealing test is carried out to achieve airtightness detection.

[0009] Regarding the structure of the microphone sealing mechanism, although the side-pressing module and the downward-pressing module are used to seal the parts to ensure airtightness. The cylinder of the side-pressing module requires a large movement space and installation space, so the whole sealing mechanism is very large. At the same time, it is easy to interfere with other components, easily causing errors in the airtightness detection results.

[0010] Secondly, when the cylinder of the side pressure module moves along the main axis direction, it will produce a slight rotation due to the action of gas pressure, making the connected main axis prone to slight rotation along its axis. Since the pushing block is fixedly connected to the main axis, the rotating main axis will drive the pushing block to rotate together, resulting in displacement of the pushing block, causing the pushing block to be unable to effectively block, and making the sealing performance detection result have a large error.

[0011] The side-pushing sealing structure driven by a cylinder is a common method in the industry. In the actual detection process, for the airtightness detection of a microphone, generally, the method of filling or extracting gas into the whole machine is used for detection, and then the overall airtightness detection data is used to judge the overall sealing effect of the microphone, rather than detecting the airtightness of a certain part or a certain component of the microphone.

[0012] In the process of overall detection, since the overall airtightness is detected, it is impossible to accurately measure the airtightness of some special positions. Only the overall airtightness data can be used to evaluate the airtightness of the entire electronic device, and further judgment of the positions that need to be detected locally cannot be carried out.

[0013] In the process of using a microphone, the user will face the microphone and pick up sound through the diaphragm at one end of the microphone. During the user's speech, there may be droplets ejected. Since only the overall structure outside the microphone is detected during the detection process, the airtightness detection of this end is often ignored. As a result, during the long-term use of the microphone, the droplets passing through its sound pickup end will enter the inside of the microphone, causing the diaphragm to get damp and the sound pickup performance to decline. The capacitor inside the microphone fails due to droplets or the internal amplifier circuit is short-circuited, resulting in the microphone being unable to be used. Summary of the Invention

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

[0015] An embodiment of the present application provides a side-pushing structure, and the side-pushing structure includes:

[0016] A driving member;

[0017] A first housing, with a first wedge block provided on one side and fixedly connected to the driving member on the other side, and the driving member drives the first housing to move along a first direction;

[0018] A second housing, having an installation position and an activity cavity communicated with the installation position formed inside;

[0019] A second wedge block, slidably installed in the activity cavity and moving along a second direction, and the first direction is perpendicular to the second direction;

[0020] A plugging component is provided at the installation position;

[0021] Wherein, the driving member moves along the first direction to drive the first housing to move towards the second housing, so as to drive the first wedge block to squeeze the second wedge block, so as to drive the second wedge block to generate a thrust along the second direction and act on the microphone assembly, so as to abut the microphone assembly against the plugging component, and form a seal between the microphone assembly and the plugging component.

[0022] In at least one embodiment of the present application, the first wedge block is provided with a first inclined surface, and a second inclined surface is provided on one side of the second wedge block close to the first wedge block.

[0023] In at least one embodiment of the present application, the movable cavity includes a first position close to the plugging component and a second position far from the plugging component, and 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 the present application, in the second direction, the distance from the first inclined surface to the second position is denoted as a; the projected length of the second inclined surface in the second direction is denoted as d;

[0025] When the second wedge block is located at the first position, the distance from the end of the second inclined surface far from the plugging component to the first position is denoted as b;

[0026] The distance from the first position to the second position is denoted as c, and the relational expression is satisfied: 2b≥c>b≥a, and b>d>a.

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

[0028] The second inclined surface is provided on one side of the second wedge block far from the plugging component, and is inclined towards the side close to the plugging component.

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

[0030] A guide rod is provided in the movable cavity and is arranged along the second direction, and the second wedge block is slidably connected with the guide rod;

[0031] An elastic member has one end abutted against the inner wall of the movable cavity close to the plugging component and the other end abutted against the second wedge block.

[0032] In at least one embodiment of the present application, the plugging component includes:

[0033] The abutting member is installed on the installation position, and a positioning groove is formed on one side of the abutting member close to the second wedge block;

[0034] The flexible sealing member is arranged in the positioning groove and is used to seal the connection between the microphone assembly and the abutting member.

[0035] In at least one embodiment of the present application, the abutting member is provided with a protruding portion, the positioning groove is arranged around the protruding portion, and a communication hole is formed in the protruding portion;

[0036] A first gas channel and a second gas channel are formed on the second housing. One end of the first gas channel is communicated with the communication hole, and the other end is communicated with the outside;

[0037] One end of the second gas channel is communicated with the outside, and the other end is communicated with the installation position.

[0038] In at least one embodiment of the present application, an arc-shaped groove and a receiving groove communicated with both ends of the arc-shaped groove are formed on one side of the second housing close to the first housing. The receiving groove and the arc-shaped groove form an annular groove, and the annular groove is arranged around the installation position and the movable cavity;

[0039] The side pushing structure further includes:

[0040] A first sealing member is arranged in the arc-shaped groove, and both ends extend into the receiving groove;

[0041] A second sealing member is arranged in the receiving groove and is detachably connected to both ends of the first sealing member to seal the connection between the first housing and the second housing;

[0042] A guide rod is arranged on the first housing, a guide hole is formed on the second housing, and the guide rod corresponds to the guide hole.

[0043] An airtightness detection device includes the side pushing structure as described in any one of the above;

[0044] The airtightness detection device further includes:

[0045] A frame body forms a receiving position, and the side pushing structure is arranged on the receiving position;

[0046] An airtightness detection member is arranged on the receiving position and is communicated with the side pushing structure.

[0047] Implementing the side pushing structure and the airtightness detection device of this embodiment will at least have the following beneficial effects:

[0048] 1. For the side push structure and airtightness detection device provided above, since the driving member is used to drive the first housing and the first wedge block to move, and the first wedge block further pushes the second wedge block to seal the microphone assembly, the overall structure is made more compact.

[0049] 2. For the side push structure and airtightness detection device provided above, since a single driving member is used for pushing, only a single driving member is required for the overall side push structure to achieve extrusion and sealing in the first direction and the second direction, avoiding the problem of interference with other components due to the excessive volume of the structure, and thus ensuring more accurate results of airtightness detection.

[0050] 3. For the side push structure and airtightness detection device provided above, since both the first wedge block and the second wedge block are located inside the first housing and the second housing, the overall structure is more compact, the airtightness of the overall side push structure is better, and for a small microphone assembly, the results of airtightness detection are more accurate.

[0051] 4. For the side push structure and airtightness detection device provided above, the method of squeezing the first wedge block and the second wedge block is adopted to push the microphone assembly and the plugging assembly to be squeezed 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 thus can better plug between the microphone assembly and the plugging assembly, making the results of airtightness detection more accurate.

[0052] 5. When detecting a microphone assembly that needs to be subjected to airtightness detection, high-pressure gas is introduced through the first gas passage and the communication hole respectively to perform airtightness detection on the end of the microphone assembly that needs to be subjected to airtightness detection in the independent space. At the same time, high-pressure gas is injected into the movable cavity through the second gas passage to perform airtightness detection on the overall microphone assembly, so that high-pressure gas is injected simultaneously twice, and the airtightness detection device performs airtightness detection on the overall microphone assembly and the end that needs to be detected for airtightness at the same time, so as to obtain the airtightness results of the overall microphone assembly and the end, and accurately judge the airtightness degree of different parts of the microphone.

[0053] Through one operation, the airtightness of the overall and local parts of the microphone assembly can be detected simultaneously to improve the detection efficiency.

[0054] 6. When detecting the airtightness of the microphone assembly, the driving member moves close to the second housing in the first direction, the driving member drives the first housing to approach the second housing. At the same time, the first wedge block on the first housing approaches the second wedge block of the second housing. When the first wedge block abuts against the second wedge block, the first wedge block will push the second wedge block to move in the second direction, thereby pushing the microphone assembly to be sealed with the flexible plugging member, and then separating the space between the microphone assembly and one end of the flexible plugging member from the movable cavity into two independent spaces.

[0055] Then, by injecting high-pressure gas into the first gas channel, the high-pressure gas enters the communication holes through the first gas channel, and then the airtightness of the end of the microphone assembly is detected. At the same time, high-pressure gas is introduced through the second gas channel, and the high-pressure gas enters the movable cavity through the second gas channel, so as to detect the airtightness of the whole microphone assembly, obtain the airtightness detection data twice, and accurately judge the airtightness results of the whole and the end of the microphone assembly through the two airtightness detection data. Description of the Drawings

[0056] Figure 1 It is a structural diagram of the side push structure in the present invention;

[0057] Figure 2 is Figure 1 an exploded view of the side push structure in

[0058] Figure 3 is Figure 2 a structural diagram of the second housing in

[0059] Figure 4 is Figure 2 a structural diagram of the first housing in

[0060] Figure 5 is Figure 2 a structural diagram of the second wedge block in

[0061] Figure 6 is Figure 2 a structural diagram of the plugging assembly in

[0062] Figure 7 is Figure 2 a structural diagram of the second seal in

[0063] Figure 8 is Figure 2 a structural diagram of the first seal in

[0064] Figure 9 is Figure 6 an exploded view of the plugging assembly in

[0065] Figure 10 is Figure 1 a cross-sectional view of some structures in

[0066] Figure 11 is Figure 10 another perspective cross-sectional view of some structures in

[0067] Figure 12 a structural diagram of the airtightness detection device;

[0068] Figure 13For Figure 12 Exploded view of the airtightness detection device;

[0069] Figure 14 It is a schematic diagram of an embodiment during the airtightness detection of the airtightness detection device.

[0070] Description of main component symbols

[0071] 100, Side push structure;

[0072] 110, Driving part;

[0073] 120, First housing; 121, First wedge; A, First direction; 1211, First inclined surface;

[0074] 130, Second housing; 130a, Mounting position; 130b, Moving cavity; 130c, First position; 130d, Second position; B, Second direction; 130e, First gas channel; 130f, Second gas channel; 130g, Guide hole; 130h, Arc-shaped groove; 130i, Receiving groove; 130j, Ring-shaped groove;

[0075] 140, Second wedge; 141, Second inclined surface;

[0076] 150, Sealing component; 151, Contact part; 1511, Protrusion; 1511a, Communication hole; 151a, Positioning groove; 152, Flexible sealing piece;

[0077] 160, Guide rod; 161, Elastic piece;

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

[0079] 180, Airtightness detection device;

[0080] 181, Frame; 181a, Accommodating position; 182, Airtightness detection piece;

[0081] 200, Microphone assembly. Detailed implementation manners

[0082] Next, the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the 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 there may be an intermediate component present at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component present at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.

[0084] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0085] An embodiment of the present application provides a side push structure 100, and the side push structure 100 includes:

[0086] A driving member 110;

[0087] A first housing 120, with a first wedge 121 provided on one side and fixedly connected to the driving member 110 on the other side, and the driving member 110 drives the first housing 120 to move along a first direction A;

[0088] A second housing 130, having an installation position 130a and an activity cavity 130b communicating with the installation position 130a formed inside;

[0089] A second wedge 140, slidably installed in the activity cavity 130b and moving along a second direction B, and the first direction A is perpendicular to the second direction B;

[0090] A sealing component 150, provided on the installation position 130a;

[0091] Wherein, the driving member 110 moves along the first direction A to drive the first housing 120 to move towards the direction close to the second housing 130, so as to drive the first wedge 121 to squeeze the second wedge 140, so as to drive the second wedge 140 to generate a thrust along the second direction B and act on the microphone component 200, so as to abut the microphone component 200 against the sealing component 150, and form a seal between the microphone component 200 and the sealing component 150.

[0092] Please refer to Figures 1 - 11 , in this embodiment, before detection, one end of the microphone component 200 is placed on the installation position 130a, and the other end is placed in the activity cavity 130b; then the driving member 110 is started, and the driving member 110 moves along the first direction A towards the direction close to the second housing 130, so as to drive the first wedge 121 to move towards the direction close to the second wedge 140.

[0093] When the first wedge block 121 abuts against the second wedge block 140, the driving member 110 continues to move, so that the first wedge block 121 continues to move along the first direction A. Under the extrusion of the first wedge block 121, the second wedge block 140 moves along the second direction B and generates a thrust on the microphone assembly 200. When the driving member 110 drives the first housing 120 to move until it abuts against the second housing 130, under the action of the first wedge block 121, the second wedge block 140 generates a squeezing force on the microphone assembly 200 to abut the microphone assembly 200 against the plugging assembly 150, so as to form a seal between the microphone assembly 200 and the plugging assembly 150. Finally, an airtightness test is carried out to ensure the result of the airtightness test.

[0094] Since the driving member 110 is used to drive the first housing 120 and the first wedge block 121 to move, and the first wedge block 121 further pushes the second wedge block 140 to seal the microphone assembly 200, the overall structure is made more miniaturized.

[0095] Secondly, since a single driving member 110 is used for pushing, the overall side-pushing structure 100 only needs to use a single driving member 110 to achieve the extrusion and sealing in the first direction A and the second direction B, avoiding the problem of interference with other components due to the too large volume of the structure, and thus ensuring that the result of the airtightness detection is more accurate.

[0096] At the same time, since both the first wedge block 121 and the second wedge block 140 are located inside the first housing 120 and the second housing 130, the overall structure is made more compact, the airtightness of the overall side-pushing structure 100 is better, and for the small microphone assembly 200, the result of its airtightness detection is more accurate.

[0097] By adopting the extrusion method of the first wedge block 121 and the second wedge block 140 to push the microphone assembly 200 and the plugging assembly 150 to perform extrusion sealing in the second direction B, the problem of pushing displacement caused by the rotation of the main shaft in the prior art can be completely avoided, and thus the microphone assembly 200 and the plugging assembly 150 can be better plugged, making the result of the airtightness detection more accurate.

[0098] It should be noted that the driving member 110 is a cylinder or a hydraulic cylinder; the first housing 120 is generally in the shape of a rectangular plate, and a cavity is formed by inward depression on the side close to the second housing 130; the first wedge block 121 is generally in the shape of a right-angled triangle block, the second wedge block 140 is a right-angled triangle block, and the setting directions of the first wedge block 121 and the second wedge block 140 are opposite, and the hypotenuse of the first wedge block 121 is arranged opposite to the hypotenuse of the second wedge block 140.

[0099] The second housing 130 is generally a rectangular block, and on the side of the second housing 130 close to the first housing 120, an installation position 130a and a movable cavity 130b are recessed inward. The installation position 130a is generally a rectangular groove, and the movable cavity 130b is generally a rectangular groove. A connecting groove is formed between the movable cavity 130b and the installation position 130a for connecting the movable cavity 130b and the installation 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 installation position 130a.

[0100] The first direction A is the telescopic direction (or the length direction or the vertical direction from the first housing 120 to the second housing 130) of the driving member 110 and is perpendicular to the first housing 120.

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

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

[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 close to the second housing 130 by means of structures such as 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 in the direction close to the second housing 130.

[0104] When the first inclined surface 1211 of the first wedge block 121 abuts against the second inclined surface 141 of the second wedge block 140, since the second wedge block 140 is slidably installed in the movable cavity 130b and is slidably connected to the second housing 130, the first inclined surface 1211 moves along the first direction A towards the second inclined surface 141. As a result, there is a force along the first direction A acting on the second inclined surface 141 from the first inclined surface 1211. 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 block 140 to move towards the side close to the blocking assembly 150 along the second direction B. The second wedge block 140 pushes the microphone assembly 200 in the movable cavity 130b to move towards the blocking assembly 150 together. When the first housing 120 abuts against the second housing 130, under the action of the first wedge block 121, the second wedge block 140 presses the microphone assembly 200 against the blocking assembly 150, so that a seal is formed at the connection between the blocking assembly 150 and the microphone assembly 200, completing the seal between the microphone assembly 200 and the blocking assembly 150.

[0105] Finally, an airtightness test is performed on the microphone assembly 200 in the side-pushing structure 100.

[0106] Since the first wedge block 121 abuts against the second wedge block 140, the end of the microphone assembly 200 is fixed on the blocking assembly 150, and an effective seal is formed between the blocking assembly 150 and the end of the microphone assembly 200, thereby improving the accuracy of the airtightness test.

[0107] It should be noted that since the first wedge block 121 pushes the second wedge block 140 to slide in the movable cavity 130b by abutting, the second wedge block 140 can complete pressing the microphone assembly 200 against the blocking assembly 150 without additionally setting a power source, achieving the seal between the microphone assembly 200 and the blocking assembly 150, thus avoiding the problem of the overall structure being too large due to an external power source.

[0108] At the same time, the first wedge block 121 and the second wedge block 140 are sealed between the first housing 120 and the second housing 130, making the overall airtightness of the side-pushing structure 100 better.

[0109] The microphone assembly 200 is pressed against the blocking assembly 150 by the side of the second wedge block 140 away from the first wedge block 121, so that a sealed connection is formed between the microphone assembly 200 and the blocking assembly 150. Since the microphone assembly 200 is fixed to the blocking assembly 150 by the second wedge block 140 through surface-to-surface contact, the airtightness between the microphone assembly 200 and the blocking assembly 150 is ensured.

[0110] Secondly, since the second wedge block 140 slides in the second housing 130 along the second direction B to abut the microphone assembly 200 against the plugging assembly 150, an effective seal is formed at the connection between the microphone assembly 200 and the plugging assembly 150, avoiding the problem of small-angle rotation caused by using a main shaft or a cylinder drive. Thus, the microphone assembly 200 can be accurately positioned on the plugging assembly 150 by the second wedge block 140, avoiding the sealing problem caused by displacement and further affecting the error of the final airtightness detection.

[0111] Please refer to Figures 1 - 14 , in another embodiment, the microphone to be detected is placed on the mounting position 130a, so that the end to be detected is located on the mounting position 130a, and the other end extends into the moving cavity 130b and abuts against the second wedge block 140.

[0112] Start the driving member 110, and the driving member 110 drives the first housing 120 to move in the direction close to the second housing 130, so that the first housing 120 drives the first wedge block 121 to approach the second wedge block 140. When the first wedge block 121 abuts against the second wedge block 140, the first inclined surface 1211 of the first wedge block 121 abuts against the second inclined surface 141 of the second wedge block 140. At this time, the first wedge block 121 has a thrust on the second wedge block 140 in the first direction A. Since the thrust acts on the second inclined surface 141 of the second wedge block 140, the second wedge block 140 will move in the second direction B in the direction close to the plugging assembly 150, thereby pushing the microphone.

[0113] When the first housing 120 abuts against the second housing 130, under the action of the first wedge block 121, the second wedge block 140 abuts the end of the microphone to be detected against the flexible plugging member 152, so that the end of the microphone to be detected forms a sealed connection with the abutting member 151 through the flexible plugging member 152. A partial space at the mounting position 130a (hereinafter referred to as the "independent space") (that is, the space between the end of the microphone to be subjected to airtightness detection and the abutting member 151) forms an independent space, which communicates with the communication hole 1511a and is independent of the moving 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 moving cavity 130b forms a sealed space.

[0115] When detecting a microphone assembly that needs to be subjected to airtightness detection, high-pressure gas is respectively introduced through the first gas passage 130e and the communication hole 1511a to perform airtightness detection on the end part of the microphone assembly in the independent space that needs to be subjected to airtightness detection. At the same time, high-pressure gas is injected into the movable cavity 130b through the second gas passage 130f to perform airtightness detection on the entire microphone assembly, so that high-pressure gas is injected simultaneously twice, and the airtightness detection device 180 respectively performs airtightness detection on the whole of the microphone assembly and the end part that needs to be detected for airtightness at the same time, so as to obtain the airtightness results of the whole and the end part of the microphone assembly, and accurately judge the airtightness degree of different parts of the microphone.

[0116] Through one operation, the airtightness of the whole and the local parts of the microphone assembly can be detected simultaneously to improve the detection efficiency.

[0117] It should be noted that during the process of detecting airtightness, the existing detection method is adopted for detection. High-pressure gas is generated by an air compressor, and then is respectively injected into the independent space and the movable cavity 130b through an air pump, the first gas passage 130e and the second gas passage 130f, and then the air pressures in these two spaces are respectively detected by a pressure sensor and an airtightness detector to detect the airtightness of the whole microphone and the end part that needs to be detected.

[0118] In at least one embodiment of the present application, the movable cavity 130b includes a first position 130c close to the plugging assembly 150 and a second position 130d far from the plugging 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 driving member 110 moves, so that the driving member 110 moves along the first direction A, drives the first housing 120 to move along the first direction A, and the first housing 120 approaches the second housing 130. At this time, the second wedge block 140 is located at the second position 130d.

[0120] When the driving member 110 drives the first wedge block 121 to abut against the second wedge block 140, since the first wedge block 121 is fixed to the first housing 120 and the second wedge block 140 is slidably installed in the movable cavity 130b, when the first inclined surface 1211 abuts against the second inclined surface 141, the acting force of the first wedge block 121 in the first direction A will act on the second wedge block 140, and the component force of the acting force on the second inclined surface 141 will push the second wedge block 140 along the second direction B, thereby pushing the second wedge block 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 block 140 is pushed to the first position 130c under the action of the first wedge block 121, so as to abut the microphone assembly 200 against the plugging assembly 150, and a seal is formed between the microphone assembly 200 and the plugging assembly 150.

[0122] Finally, an airtightness test is performed on the microphone assembly 200.

[0123] When the airtightness test is completed, the driving member 110 moves along the first direction A and away from the second housing 130, so as to drive the first housing 120 to separate from the second housing 130, and the first housing 120 and the second housing 130 are separated, and the microphone assembly 200 can be taken out from the second housing 130.

[0124] Due to the action of the first wedge block 121, the second wedge block 140 moves from the second position 130d to the first position 130c, thereby pushing one end of the microphone assembly 200 located in the movable cavity 130b, so as to push the other end of the microphone assembly 200 to the plugging assembly 150, and the sealing of the end of the microphone assembly 200 and the plugging assembly 150 is completed, which is convenient for subsequent airtightness testing. It is avoided that the subsequent airtightness test is affected due to the gap between the microphone assembly 200 and the plugging assembly 150.

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

[0126] When the second wedge block 140 is located at the first position 130c, the distance from the end of the second inclined surface 141 away from the plugging 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, and the relational expression is satisfied: 2b≥c>b≥a, and b>d>a.

[0128] Please refer to Figures 1 - 11, in this embodiment, in the second direction B, when the second wedge 140 is located at the second position 130d, there is a relationship b > d > a. 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 and the second inclined surface 141 abut, since the relationship 2b ≥ c > b ≥ a is satisfied, when the driving member 110 continues to move closer to the second housing 130 in the first direction A, the downward acting force of the driving member 110, after abutting through the first inclined surface 1211 and the second inclined surface 141, thus converts the downward acting force of the driving member 110 into an acting force on the second inclined surface 141, and further pushes the second wedge 140 to move closer to the plugging assembly 150 in the second direction B, so as to push the microphone assembly 200 in the direction closer to the plugging assembly 150. When the first housing 120 abuts and seals with the second housing 130, the microphone assembly 200 is abutted against the plugging assembly 150, achieving the effect of single-power two-way sealing.

[0129] Due to the effect of single-power two-way sealing, the overall side-pushing structure 100 is smaller in volume. At the same time, by using the abutment of the first inclined surface 1211 and the second inclined surface 141 to push the second wedge 140, the microphone assembly 200 is abutted against the plugging assembly 150. Since the first inclined surface 1211 and the second inclined surface 141 are surface-to-surface contacts, and under the action of the first inclined surface 1211 and the second inclined surface 141, the second wedge 140 slides in the moving cavity 130b in the second direction B, thus avoiding the problem of rotational displacement caused by the traditional method, so as to improve the sealing effect, and there will be no problem of rotational displacement even after long-term use.

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

[0131] The second inclined surface 141 is provided on the side of the second wedge 140 away from the plugging assembly 150 and is inclined towards the side closer to the plugging assembly 150.

[0132] Please refer to Figures 1 - 11, in this embodiment, since the first inclined surface 1211 and the second inclined surface 141 incline in the same direction, and the second inclined surface 141 is located on the side away from the plugging component 150 and inclines towards the side close to the plugging component 150, when the first inclined surface 1211 pushes the second inclined surface 141 to move, the downward pressing force of the first wedge 121 can act on the second wedge 140 and squeeze the microphone assembly 200 along the second direction B, so as to form a seal at the connection between the microphone assembly 200 and the plugging component 150, which can effectively achieve the seal at one end of the microphone assembly 200 close to the plugging component 150 and avoid the problem that the airtightness detection result is inaccurate due to the gap between the microphone assembly 200 and the plugging component 150.

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

[0134] A guiding rod 160, which is arranged in the moving cavity 130b and arranged along the second direction B, and the second wedge 140 is slidably connected to the guiding rod 160;

[0135] An elastic member 161, one end of which abuts against the inner wall of the moving cavity 130b close to the plugging component 150, and the other end abuts against the second wedge 140.

[0136] Please refer to Figures 1 - 11 , in this embodiment, when the first wedge 121 squeezes the second wedge 140, since the second wedge 140 is slidably connected to the guiding rod 160 and the length direction of the guiding rod 160 is arranged along the second direction B, the second wedge 140 slides in the moving cavity 130b along the length direction of the guiding rod 160 towards the second direction B under the action of the first wedge 121, so as to push the microphone assembly 200 and push the microphone assembly 200 to abut against the plugging component 150, so as to realize the seal at the connection between the microphone assembly 200 and the plugging component 150.

[0137] When the driving 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 moving cavity 130b close to the plugging component 150 and the other end abuts against the second wedge 140, when the second wedge 140 is not affected by the acting 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] Due to the adoption of the elastic member 161, when the first wedge block 121 disengages from the second wedge block 140, the second wedge block 140 can slide to the second position 130d under the elastic force of the elastic member 161, avoiding manual resetting and improving the safety during the detection process.

[0139] It should be noted that the guide rod 160 is in the shape of a round rod and there are two of them. The two guide rods 160 are respectively arranged on both sides of the second wedge block 140. The head and tail of the guide rod 160 are respectively fixed to the inner wall of the movable cavity 130b, providing a direction for the movement of the second wedge block 140, avoiding displacement of the second wedge block 140, and at the same time guiding the second wedge block 140 to slide accurately to apply a precise extrusion force to the microphone assembly 200.

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

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

[0142] A contact member 151, installed on the installation position 130a, and a positioning groove 151a is formed on the side of the contact member 151 close to the second wedge block 140;

[0143] A flexible plugging member 152, arranged in the positioning groove 151a and used for plugging the connection between the microphone assembly 200 and the contact member 151.

[0144] Please refer to Figures 1 - 11 , in this embodiment, when the second wedge block 140 pushes the microphone assembly 200 to push the microphone assembly 200 in the direction close to the plugging assembly 150, after the second wedge block 140 reaches the first position 130c, the microphone assembly 200 is pushed and abuts against the flexible plugging member 152. Under the action of the extrusion force, the microphone assembly 200 and the flexible plugging member 152 form a seal. And the flexible plugging member 152 is arranged in the positioning groove 151a of the contact member 151, so that the connection between the microphone assembly 200 and the contact member 151 is sealed through the flexible plugging member 152 to achieve lateral sealing, facilitating subsequent airtightness detection of the microphone assembly 200.

[0145] It should be noted that the flexible plugging member 152 is made of a flexible sealing material, such as silica gel, rubber, etc., and the flexible plugging member 152 is generally in a circular ring shape.

[0146] The contact member 151 is in the shape of a rectangular block, and the contact member 151 is fixed to the installation 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 the present application, the abutting member 151 is provided with a protrusion 1511, the positioning groove 151a is arranged around the protrusion 1511, and the protrusion 1511 is provided with a communication hole 1511a;

[0148] A first gas passage 130e and a second gas passage 130f are formed in the second housing 130. One end of the first gas passage 130e communicates with the communication hole 1511a, and the other end communicates with the outside;

[0149] One end of the second gas passage 130f communicates with the outside, and the other end communicates with the installation position 130a.

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

[0151] Then, the airtightness detection member 182 injects high-pressure gas into the installation position 130a through the second gas passage 130f, thereby performing airtightness detection on the microphone assembly 200 at the installation position 130a; at the same time, the installation position 130a is communicated with the communication hole 1511a through the microphone assembly 200, so that during the airtightness detection process, the end of the microphone assembly 200 close to the sealing assembly 150 can be subjected to airtightness detection. The second gas passage 130f is provided with a device for measuring air pressure to detect airtightness.

[0152] Realize simultaneous airtightness detection of the whole microphone assembly 200 and the end to be detected, so as to achieve the effect of synchronous detection and improve the efficiency of airtightness detection.

[0153] After the airtightness detection is completed, exhaust through the first gas passage 130e to complete the airtightness detection.

[0154] Since a single driving source is used to seal in 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 squeeze the microphone assembly 200 inside to achieve lateral sealing, so as to better ensure the overall airtightness.

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

[0156] It should be noted that the protrusion 1511 is in the shape of a rectangular block. When the microphone assembly 200 abuts against the flexible sealing member 152, the microphone assembly 200 will partially enter the positioning groove 151a, resulting in better sealing performance.

[0157] The communication hole 1511a is a through hole, which is used for airtightness detection and facilitates the subsequent gas discharge.

[0158] Both the first gas passage 130e and the second gas passage 130f are through passages. The first gas passage 130e is used for airtightness detection and exhaust. The second gas passage 130f is a passage for the airtightness detection member 182 to inject high-pressure gas into the installation position 130a.

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

[0160] The side push structure 100 further includes:

[0161] A first seal 170, which is arranged in the arc-shaped groove 130h and both ends extend into the receiving groove 130i;

[0162] A second seal 171, which is arranged in the receiving groove 130i and is detachably connected to both ends of the first seal 170 to seal the connection between the first housing 120 and the second housing 130;

[0163] A guide rod 172, which is arranged on the first housing 120, and a guide hole 130g is formed on the second housing 130, and the guide rod 172 corresponds 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 squeezes the first seal 170 and the second seal 171 in the first direction A, so that the connection between the first housing 120 and the second housing 130 is sealed by the first seal 170 and the second seal 171 to ensure the airtightness of the movable cavity 130b and the installation position 130a.

[0165] The guide rod 172 is used for guiding the first housing 120. When the first housing 120 approaches the second housing 130 along the first direction A, under the movement of the first housing 120, the guide rod 172 is inserted into the guide hole 130g to achieve precise alignment and avoid displacement problems caused by deviations 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 jointly enclose a sealing ring to seal the connection between the first housing 120 and the second housing 130, thereby preventing gaps between the first housing 120 and the second housing 130 from affecting subsequent airtightness detection.

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

[0168] In the existing technology, a separate mold needs to be opened 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, by opening card slots on the second seal 171 and then directly cutting a ring-shaped sealing ring, it can be matched to form a combined seal. During manufacturing, only the second seal 171 needs to be produced separately, and there is no need to open a mold for the overall 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 between the first housing 120 and the second housing 130, and further avoiding inaccurate airtightness detection results, so as to improve the accuracy of airtightness detection results.

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

[0172] An airtightness detection device 180 includes the side push structure 100 as described in any one of the above.

[0173] The airtightness detection device 180 further includes:

[0174] A frame body 181, which forms a receiving position 181a, and the side push structure 100 is arranged on the receiving position 181a;

[0175] The airtightness detection member 182 is disposed on the accommodation position 181a and communicates with the side pushing structure 100.

[0176] Please refer to Figures 1 - 11 , in this embodiment, during the detection, the microphone assembly 200 is placed into the second housing 130. A part of the microphone assembly 200 is located in the movable cavity 130b, and the other part is located at the installation position 130a. The airtightness detection device 180 is started, and the driving member 110 moves towards the second housing 130 along the first direction A, driving the first housing 120 to approach the second housing 130. At the same time, the first wedge 121 approaches the second wedge 140. When the first wedge 121 abuts against the second wedge 140, the first wedge 121 pushes the second wedge 140, and under the pushing action, the second wedge 140 pushes the microphone assembly 200 to approach the blocking assembly 150 along the second direction B from the second position 130d.

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

[0178] Then, the airtightness detection member 182 introduces high-pressure gas, and the high-pressure gas enters the installation position 130a through the second gas passage 130f to detect the overall airtightness of the microphone assembly 200 at the installation position 130a. At the same time, since the end of the microphone assembly 200 is at the blocking assembly 150, the airtightness of the end of the microphone assembly 200 can be detected to obtain a more accurate airtightness result.

[0179] After the airtightness detection is completed, exhaust is carried out through the first gas passage 130e and the communication hole 1511a, and 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, and the second wedge 140 slides on the guide rod 160 under the elastic force of the elastic member 161 to release the microphone assembly 200.

[0180] It should be further noted that during the airtightness detection process, the overall airtightness of the microphone assembly 200 at the installation position 130a can be detected through the first gas passage 130e respectively. At the same time, the second gas passage 130f is ventilated to detect the airtightness of the end of the microphone assembly 200 (the connection between the microphone assembly 200 and the blocking assembly 150) through the communication hole 1511a, so as to obtain the airtightness detection results of the whole and the local at the same time, and improve the efficiency of the airtightness detection.

[0181] It should be noted that the frame 181 is generally a rectangular housing, and the accommodation position 181a is a cavity inside the frame 181; the airtightness detection member 182 is an existing pneumatic airtightness detection member 182, which judges the airtightness by high-pressure gas and measuring the pressure of the gas.

[0182] The above are only the implementation manners of the present application. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present application, but these all fall within the protection scope of the present application.

Claims

1. A thrust structure, characterized in that: The thrust structure comprises: Driving parts; A first housing, one side of which is provided with a first wedge, and the other side of which is fixedly connected to the driving member, wherein the driving member drives the first housing to move along a first direction; A second housing is formed with a mounting position and an active cavity communicating with the mounting position; A second wedge block is slidably mounted in the movable cavity and moves along a second direction, wherein the first direction is perpendicular to the second direction; A plugging assembly is arranged on the installation position; Among them, the driving member moves along the first direction to drive the first shell to move towards the second shell, so as to drive the first wedge block to squeeze the second wedge block, so as to drive the second wedge block to generate thrust along the second direction and act on the microphone assembly, so as to make the microphone assembly abut against the sealing assembly, so as to form a seal between the microphone assembly and the sealing assembly.

2. The thrust structure according to claim 1, characterized in that: The first wedge block is provided with a first inclined surface, and the second wedge block is provided with a second inclined surface on a side close to the first wedge block.

3. The thrust structure according to claim 2, characterized in that: The active cavity includes a first position close to the blocking assembly and a second position away from the blocking assembly, and a projection of the first inclined surface in the first direction is located between the first position and the second position.

4. The thrust structure according to claim 3, characterized in that: In the second direction, the distance from the first inclined surface to the second position is denoted as a; The projection length of the second inclined surface in the second direction is denoted as d; When the second wedge is located at the first position, the distance from the end of the second inclined surface away from the blocking assembly to the first position is recorded as b; The distance from the first position to the second position is denoted as c, which satisfies the relationship: 2b≥c>b≥a, and b>d>a.

5. The thrust structure according to claim 2, characterized in that: The first inclined surface and the second inclined surface have the same inclination direction; The second inclined surface is provided on a side of the second wedge away from the blocking assembly, and the second inclined surface is inclined toward a side close to the blocking assembly.

6. The thrust structure according to claim 1, characterized in that: The thrust structure further comprises: A guide rod is disposed in the movable cavity and arranged along the second direction, and the second wedge block is slidably connected to the guide rod; The elastic member has one end abutting against an inner wall of one side of the movable cavity close to the blocking component, and the other end abutting against the second wedge block.

7. The thrust structure according to claim 1, characterized in that: The blocking component comprises: An abutment member is installed on the installation position, and a positioning groove is formed on a side of the abutment member close to the second wedge block; The flexible blocking member is arranged in the positioning groove and is used for blocking the connection between the microphone assembly and the abutting member.

8. The thrust structure according to claim 7, characterized in that: The abutment member is provided with a protrusion, the positioning groove is arranged around the protrusion, and the protrusion is provided with a communicating hole; The second shell is provided with 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 channel is connected to the outside, and the other end is connected to the installation position.

9. The thrust structure according to claim 1, characterized in that: An arc-shaped groove and a receiving groove connected to both ends of the arc-shaped groove are formed on one side of the second shell close to the first shell, and the receiving groove and the arc-shaped groove form an annular groove, and the annular groove is arranged around the mounting position and the active cavity; The thrust structure further comprises: A first sealing member is disposed in the arc-shaped groove, and both ends of the first sealing member extend into the receiving groove; A second sealing member is disposed in the receiving groove and is detachably connected to both ends of the first sealing member to seal the connection between the first shell and the second shell; The guide rod is arranged on the first shell, and the second shell is provided with a guide hole, and the guide rod corresponds to the guide hole.

10. An airtightness detection device, characterized in that: A thrust structure comprising any one of claims 1 to 9; The airtightness detection equipment also includes: The frame is formed with a receiving position, and the side-pushing structure is arranged on the receiving position; An airtightness detection component is arranged on the accommodating position and is communicated with the side thrust structure.

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