Device for testing air tightness of middle frame of mobile equipment

Abstract

The invention discloses a mobile equipment middle frame air tightness testing device, which comprises a mounting seat, a lower die component, a mounting component, at least one locking mechanism and an unlocking mechanism, and is characterized in that the lower die component is arranged on the mounting seat and is provided with an accommodating groove for accommodating a mobile equipment middle frame; the upper die component is located on the upper side of the lower die component and can abut against the mobile equipment middle frame in the containing groove. The mounting component comprises a mounting part and a connecting part connected to the mounting part, and the mounting part is used for being connected with the upper die component; the locking mechanism comprises a base arranged on the mounting seat and two clamping jaws arranged on the base, the two clamping jaws are arranged at an interval, the middle of each clamping jaw is rotationally connected with the base, a clamping part is constructed at the upper end of each clamping jaw, a pressing part is constructed at the lower end of each clamping jaw, and the two clamping parts can clamp the connecting part; the unlocking mechanism is arranged on the mounting base and comprises a driving component and a rolling component arranged at the output end of the driving component, and the driving component is used for driving the rolling component to move in the direction towards the pressing part so as to drive the two clamping parts to move oppositely to release the connecting part.

Description

Technical Field

[0001] The present invention relates to the field of airtightness testing devices for mobile devices, and particularly to an airtightness testing device for the middle frame of a mobile device. Background Art

[0002] Mobile devices (such as mobile phones, tablets, etc.) are indispensable electronic products in modern people's daily lives. The housing structure of a mobile device usually includes a front glass cover plate, a middle frame, and a rear cover. The middle frame is usually made of metal or high-strength plastic and serves to support and connect internal components.

[0003] The middle frame of a mobile device is not only a framework for supporting the internal components of the device but is also directly related to the waterproof and dustproof performance of the device. In related technologies, in order to ensure that a mobile device can still work properly when encountering moisture, dust, or other environmental factors, the manufacturer will perform an airtightness test on the middle frame during the production process. For example, the middle frame is placed in the upper and lower molds, and then a certain air pressure difference or vacuum environment is applied to the middle frame to observe whether there is leakage.

[0004] However, there are the following problems in the airtightness test of the middle frame in related technologies: In the existing middle frame test, in order to maintain the stability of the middle frame test, it is necessary to use manual labor or a cylinder to apply pressure to the upper and lower molds to fix the middle frame first. When disassembling the molds to replace the middle frame to be tested after the test is completed, due to the application of external force, it is not easy to separate the two molds, resulting in poor usability of the existing airtightness testing device for the middle frame. Summary of the Invention

[0005] The main object of the present invention is to propose an airtightness testing device for the middle frame of a mobile device, aiming to improve the usability of the airtightness testing device for the middle frame of a mobile device.

[0006] To achieve the above object, the present invention proposes an airtightness testing device for the middle frame of a mobile device, including:

[0007] A mounting base;

[0008] A lower mold member, provided on the mounting base, having a receiving groove for receiving the middle frame of a mobile device;

[0009] An upper mold member, located above the lower mold member, and the upper mold member can abut against the middle frame of the mobile device in the receiving groove;

[0010] A mounting member, including a mounting portion and a connecting portion connected to the mounting portion, and the mounting portion is used to connect the upper mold member;

[0011] At least one locking mechanism, including a base provided on the mounting base and two clamping jaws provided on the base. The two clamping jaws are spaced apart. The middle of each clamping jaw is rotatably connected to the base. A clamping portion is formed at the upper end of each clamping jaw, and a pressing portion is formed at the lower end. The two clamping portions can clamp the connecting portion.

[0012] The unlocking mechanism is provided on the mounting base and includes a driving member and a rolling member provided at the output end of the driving member. The driving member is used to drive the rolling member to move in a direction towards the pressing portion, so as to drive the two clamping portions to move away from each other to release the connecting portion.

[0013] In some embodiments, the number of the locking mechanisms is two, and the two locking mechanisms are spaced apart on opposite sides of the lower die member; the number of the connecting portions is two, and the two connecting portions respectively protrude from opposite sides of the mounting portion.

[0014] In some embodiments, the airtightness testing device for the middle frame of the mobile device further includes a rotating shaft; mounting notches are recessed on opposite sides of the base. First mounting holes are formed on both side walls of the mounting notch, and second mounting holes are formed in the middle of the clamping jaw. The clamping jaw and the base are rotatably connected by passing the rotating shaft through the first mounting hole and the second mounting hole.

[0015] In some embodiments, a first through hole is formed in the base, and the first through hole communicates with the two mounting notches; the airtightness testing device for the middle frame of the mobile device further includes:

[0016] An elastic member, the middle of the elastic member passes through the first through hole, and its two ends respectively abut against one side of the two pressing portions facing the mounting notch.

[0017] In some embodiments, the rolling member includes:

[0018] Two swing rods, spaced apart on both sides of the locking mechanism. The middle of the two swing rods is connected to the driving member, and one end of each of the two swing rods is rotatably connected to the mounting base;

[0019] Two rolling members, the two rolling members are respectively provided at the other ends of the two swing rods;

[0020] Wherein, the two swing rods rotate relative to the mounting base under the drive of the driving member, so that the two rolling members contact the pressing portions of the two clamping jaws, so that the clamping portions of the two clamping jaws move away from each other.

[0021] In some embodiments, the airtightness testing device for the middle frame of the mobile device further includes at least one sealing mechanism, and the sealing mechanism includes:

[0022] A sealing member is located between the lower die member and the locking mechanism. The sealing member is slidably connected to the mounting base.

[0023] A sealing driving member is provided on the mounting base. The output end of the sealing driving member is connected to the sealing member to drive the sealing member to contact or move away from the middle frame of the moving device in the accommodating groove in the horizontal direction.

[0024] In some embodiments, a second through hole is formed in the base. The sealing driving member is provided on the side of the base facing away from the sealing member. The sealing mechanism further includes:

[0025] A connecting rod. The middle part of the connecting rod passes through the second through hole. One end of the connecting rod is connected to the sealing member, and the other end is connected to the output end of the sealing driving member.

[0026] In some embodiments, the middle frame airtightness testing device of the mobile device further includes a slide rail and a slider. The slide rail is arranged on the lower die member, and the slider is slidably connected to the slide rail. The sealing member is detachably connected to the slider.

[0027] In some embodiments, a first air hole is formed in the bottom wall of the accommodating groove, and a second air hole communicating with the first air hole is formed in the side wall of the lower die member.

[0028] In some embodiments, the upper die member is elastically connected to the mounting portion.

[0029] The middle frame airtightness testing device of the present application provides a middle frame airtightness testing solution with high usability by setting a mounting base, a lower die member, an upper die member, a mounting member, a locking mechanism and an unlocking mechanism. Specifically, the lower die member is provided with an accommodating groove for accommodating the middle frame of the mobile device to be tested, and the upper die member applies pressure or support to the middle frame. The clamping jaws of the locking mechanism are used to clamp the connecting portion of the middle frame to ensure the stability of the middle frame during the testing process. The unlocking mechanism drives the pressing portions of the clamping jaws to move relative to each other through a driving member and a rolling member, so that the clamping portions of the two clamping jaws quickly unlock and release the clamped upper die member. Through the above settings, the installation and disassembly operations of the upper and lower die members during the middle frame testing process are more simple and efficient, and the usability is good. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of an embodiment of the middle frame airtightness testing device of the mobile device of the present invention;

[0031] Figure 2 It is a schematic structural diagram of the locking mechanism and the rotating shaft in an embodiment of the middle frame airtightness testing device of the mobile device of the present invention;

[0032] Figure 3 Schematic diagram of the installation component and the upper die component in an embodiment of the airtightness testing device for the middle frame of a mobile device according to the present invention;

[0033] Figure 4 Schematic diagram of a partial structure in an embodiment of the airtightness testing device for the middle frame of a mobile device according to the present invention.

[0034] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0035] Next, the solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0038] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] Referring to Figures 1 to 4 , the present application provides an airtightness testing device for the middle frame of a mobile device, including:

[0040] Mounting base 1;

[0041] Lower die component 2, disposed on the mounting base 1, having a receiving groove 21 for receiving the middle frame of the mobile device;

[0042] The upper die member 3 is located above the lower die member 2, and the upper die member 3 can abut against the accommodating groove 21 and / or the middle frame of the mobile device within the accommodating groove 21.

[0043] The mounting member 4 includes a mounting portion 41 and a connecting portion 42 connected to the mounting portion 41, and the mounting portion 41 is used to connect the upper die member 3.

[0044] At least one locking mechanism 5 includes a base 51 provided on the mounting base 1 and two clamping jaws 52 provided on the base 51. The two clamping jaws 52 are spaced apart. The middle of each clamping jaw 52 is rotatably connected to the base 51. A clamping portion 521 is formed at the upper end of each clamping jaw 52, and a pressing portion 522 is formed at the lower end. The two clamping portions 521 can clamp the connecting portion 42.

[0045] The unlocking mechanism 6 is provided on the mounting base 1 and includes a driving member 61 and a rolling member 62 provided at the output end of the driving member 61. The driving member 61 is used to drive the rolling member 62 to move in the direction towards the pressing portion 522, so as to drive the two clamping portions 521 to move away from each other to release the connecting portion 42.

[0046] In this embodiment, the present application can be used for airtightness testing of the middle frames of mobile devices such as mobile phones and tablet computers. Usually, various holes (such as holes for data interfaces, headphone holes, etc.) or openings on the middle frame are sealed, and air is inflated from the inside of the middle frame to observe whether it leaks from the positions of various holes (such as holes for data interfaces, headphone holes, etc.) on the middle frame.

[0047] The accommodating groove 21 of the lower die member 2 is used to place the middle frame of the mobile device, playing a positioning role. The upper die member 3 can abut against the middle frame of the mobile device within the accommodating groove 21, and cooperate with the accommodating groove 21 to fix the middle frame at a specific position to prevent it from moving during the testing process. The two clamping jaws 52 of the locking mechanism 5 clamp the connecting portion 42 of the mounting member 4, and through the connection between the mounting member 4 and the locking member, the upper die member 3 is relatively fixed to the mounting base 1, that is, the upper die member 3 is relatively fixed to the lower die member 2, ensuring the stability of the entire testing process.

[0048] When it is necessary to unlock the upper die member 3 and the lower die member 2, the driving member 61 of the unlocking mechanism 6 can be used to drive the rolling member 62 to move towards the pressing portion 522. The rolling member 62 acts on the pressing portion 522 of the clamping jaw 52. Since the middle of the clamping jaw 52 is rotatably connected to the base 51, according to the lever principle, the force on the pressing portion 522 at one end of the clamping jaw 52 will cause the clamping portion 521 at the other end of the clamping jaw 52 to move away from each other, so that the two clamping jaws 52 move away from each other to release the connecting portion 42, realizing the unlocking of the upper die member 3 and the lower die member 2.

[0049] Specifically, the operation process of the present application can be briefly described as follows:

[0050] Preparation stage: Place the middle frame of the mobile device in the receiving groove 21 of the lower die member 2, and then move the upper die member 3 to the upper side of the lower die member 2. Without limitation here, make it contact the receiving groove 21 and the middle frame of the mobile device to preliminarily fix the middle frame. Exemplarily, the movement of the upper die member 3 can be driven manually or by an external driving member.

[0051] Locking stage: The connecting portion 42 of the mounting member 4 is clamped between the two jaws 52 of the locking mechanism 5. Under the action of elastic force or other initial forces, the clamping portions 521 of the two jaws 52 clamp the connecting portion 42, thereby firmly locking the mounting member 4 and the upper die member 3 connected to the mounting member 4, and tightly fixing the middle frame of the mobile device between the upper and lower die members 2.

[0052] Testing stage: After the middle frame of the mobile device is fixed, airtightness testing can be carried out. For example, fill the middle frame with gas at a certain pressure and observe whether there is gas leakage. Due to the tight fit of the upper and lower die members 2 and the stable action of the locking mechanism 5, the airtightness and stability of the testing environment are ensured, making the test results accurate and reliable.

[0053] Unlocking stage: When the testing is completed, drive the driving member 61 of the unlocking mechanism 6 to drive the rolling member 62 to move towards the pressing portion 522 of the jaw 52. The rolling member 62 rolls and presses the pressing portion 522, causing the clamping portions 521 of the two jaws 52 to move away from each other against the elastic force and other acting forces, releasing the clamping of the connecting portion 42, so that the upper die member 3 and the middle frame of the mobile device can be conveniently removed.

[0054] The airtightness testing device for the middle frame of the mobile device with the above structure realizes the following effects in this application:

[0055] Firstly, through the cooperation of the receiving groove 21, the upper die member 3 and the locking mechanism 5, the middle frame of the mobile device can be accurately fixed and well sealed, avoiding deviation of the test results caused by the movement or poor sealing of the middle frame during the testing process, thereby improving the accuracy of the airtightness testing.

[0056] Secondly, the operation convenience is improved: The setting of the unlocking mechanism 6 enables the upper die member 3 to be conveniently and quickly unlocked after the testing is completed, facilitating the placing and removing of the middle frame of the mobile device, improving the working efficiency of the testing, and reducing the labor intensity of the operator.

[0057] Refer to Figures 1 to 4 In some embodiments, the number of the locking mechanisms 5 proposed in the embodiments of this application is two, and the two locking mechanisms 5 are spaced apart on the opposite sides of the lower die member 2; the number of the connecting portions 42 is two, and the two connecting portions 42 protrude from the opposite sides of the mounting portion 41 respectively.

[0058] In this embodiment, the air tightness test fixture for the frame of the mobile device of the present application uses two locking mechanisms 5 arranged at intervals on opposite sides of the lower mold member 2, and there are also two connecting parts 42, which are respectively protruded from the opposite sides of the mounting part 41, and have the following beneficial effects:

[0059] In terms of stability, the locking mechanisms 5 and the connecting parts 42 distributed on both sides can evenly disperse the force, avoid the middle frame from being offset or deformed due to excessive force locally, and ensure the accuracy of the test. At the same time, the pulling forces on both sides balance each other, enhancing the connection stability. In addition, the two-point locking method also makes the pressure of the upper mold member 3 on the mobile device middle frame in the receiving groove 21 more balanced.

[0060] Reference Figures 1 to 4 In some embodiments, the air tightness testing device for the middle frame of a mobile device proposed in the embodiment of the present application further includes a rotating shaft 7; mounting notches 511 are recessed on opposite sides of the base 51, and first mounting holes 512 are opened on the two side walls of the mounting notch 511, and a second mounting hole 523 is opened in the middle of the clamp 52, and the clamp 52 and the base 51 are rotatably connected by the rotating shaft 7 that penetrates the first mounting hole 512 and the second mounting hole 523.

[0061] In this embodiment, the second mounting hole 523 is aligned with the first mounting hole 512 , and then the rotating shaft 7 is passed through the two mounting holes. Thus, the two clamping jaws 52 are rotatably connected to the base 51 .

[0062] When the mobile device middle frame is placed on the lower mold member 2 and the upper mold member 3 is ready to be pressed down and fixed, the clamping stage is entered. The operator manually pushes the installation member 4 to push the upper mold member 3 to move toward the lower mold member 2, or applies force with the help of an external automated driving mechanism, and the two clamping jaws 52 can be opened by external force, and the installation member 4 enters between the clamping parts 521 of the two clamping jaws 52. The connecting part 42 of the installation member 4 can be provided with a flange, and the clamping part 521 of the clamping jaw 52 can be set to a hook shape to clamp the installation member 4.

[0063] When the test is completed and the upper mold component 3 needs to be removed, the rolling component 62 is driven by the unlocking drive member to move toward the pressing portion 522 of the clamp 52 and apply pressure. Under the action of this external force, the two clamps 52 rotate around the rotating shaft 7, so that the two clamping portions 521 move away from each other, releasing the connecting portion 42 of the mounting component 4 clamped between the two clamping portions 521. The operator can then easily remove the upper mold component 3 from the lower mold component 2, completing a complete testing process.

[0064] Reference Figures 1 to 4 In some embodiments, the base 51 provided in the embodiment of the present application is provided with a first through hole 513, and the first through hole 513 is connected to the two installation notches 511; the air tightness testing device for the frame of a mobile device further includes:

[0065] The elastic member has its middle part passing through the first through hole 513, and its two ends respectively abut against one side of the two pressing parts 522 facing the installation notch 511.

[0066] In this embodiment, the elastic member has the characteristics of elastic deformation and restoring to its original state. Generally, a spring can be selected as the elastic member. The middle part of the elastic member passes through the first through hole 513 connecting the two installation notches 511, and both ends expose from the first through hole 513, and its two ends respectively abut against one side of the two pressing parts 522 facing the installation notch 511.

[0067] In the initial state, the two pressing parts 522 are subjected to the force of the spring between them, and the two clamping parts maintain the initial clamping state.

[0068] When a test needs to be carried out, the middle frame of the mobile device can be placed in the accommodating groove 21 of the lower die member 2 by an operator or a manipulator, and then the upper die member 3 is slowly pushed close to the lower die member 2. The connecting part 42 of the upper die member 3 gradually approaches the two clamping parts 521 in the initial clamping state. As the connecting part 42 approaches, the connecting part 42 begins to squeeze the clamping part 521. Since the clamping jaw 52 is rotatably connected to the base 51 around the rotating shaft 7, the squeezed clamping part 521 moves away from each other, and the movement away from each other of the two clamping parts 521 drives the two pressing parts 522 to move towards each other, thereby squeezing the spring and causing the spring to be compressed and store elastic potential energy.

[0069] When the connecting part 42 successfully enters the appropriate position between the two clamping parts 521, the external force from the operator or the manipulator is withdrawn. The spring, relying on its elastic restoring force, pushes the two pressing parts 522 to move outwards, so that the two clamping parts 521 return to the initial clamping state, clamp the connecting part 42, and thus firmly connect the upper die member 3 and the lower die member 2 together, ensuring that the middle frame of the mobile device is stably clamped and providing a reliable guarantee for the airtightness test.

[0070] When it is necessary to remove the upper die member 3 after the test is completed, the driving member 61 drives the rolling member 62 to move towards the pressing part 522 by an external force. The rolling member 62 squeezes the pressing part 522, so that the two pressing parts 522 continue to move towards each other against the elastic force of the spring. As the pressing part 522 moves outwards, the clamping jaw 52 further rotates around the rotating shaft 7, and the clamping part 521 gradually releases the connecting part 42. In this process, the spring is further compressed and stores more elastic potential energy. When the connecting part 42 completely disengages from the clamping part 521, the rolling member 62 withdraws, and the spring quickly releases the elastic potential energy, pushing the pressing part 522 to quickly reset, and the clamping jaw 52 also returns to the initial state, preparing for the next installation of the upper die member 3 and the connecting part 42.

[0071] Refer to Figures 1 to 4 In some embodiments, the rolling member 62 proposed in the embodiment of the present application includes:

[0072] Two swing rods 621 are arranged at intervals on both sides of the locking mechanism 5. The middle parts of the two swing rods 621 are connected to the driving member 61, and one ends of the two swing rods 621 are rotatably connected to the mounting base 1;

[0073] Two rolling members 622 are respectively arranged at the other ends of the two swing rods 621;

[0074] Wherein, the two swing rods 621 rotate relative to the mounting base 1 under the drive of the driving member 61, so that the two rolling members 622 contact the pressing parts 522 of the two clamping jaws 52, so that the clamping parts 521 of the two clamping jaws 52 move away from each other.

[0075] In this embodiment, the rolling member 62 proposed in the present application utilizes the lever principle and the mechanical transmission principle. The driving member 61 serves as a power source and drives the middle part of the swing rod 621 connected thereto. The driving member 61 can be a mechanical power source such as a driving motor or a cylinder, or can also be a handle or a connecting rod structure for applying external force manually, which is not limited herein.

[0076] One end of the swing rod 621 is rotatably connected to the mounting base 1 as the rotation origin of the swing rod 621, and the other end is connected to the rolling member 622. When the driving member 61 provides power (directly or indirectly), the end of the swing rod 621 with the rolling member 622 rotates around the other end rotatably connected to the mounting base 1, so that the rolling member 622 contacts the pressing parts 522 of the two clamping jaws 52, thereby making the two pressing parts 522 move towards each other, that is, driving the pressing parts 522 of the two clamping jaws 52 to move away from each other, thereby releasing the clamping of the connecting part 42.

[0077] In some embodiments, the rolling member 622 can be a roller, which is rotatably connected to the swing rod 621. When the roller contacts the pressing part 522 of the clamping jaw 52 and pushes it to move, the friction between the roller and the pressing part 522 is rolling friction. Compared with sliding friction, the friction of rolling friction is smaller. This makes the process of the rolling member 622 pushing the pressing part 522 smoother, reduces the driving force required by the driving member 61, reduces energy consumption, and at the same time reduces the wear of the pressing part 522 and the rolling member 622, and prolongs the service life of the components.

[0078] In summary, by setting the rolling member 62 with the above structure, the present application efficiently converts the power of the driving member 61 into the opening and closing action of the clamping jaw 52, and greatly improves the unlocking speed compared with manual unlocking.

[0079] Refer to Figures 1 to 4 , in some embodiments, the airtightness testing device for the middle frame of the mobile device proposed in the embodiment of the present application further includes at least one sealing mechanism 9, and the sealing mechanism 9 includes:

[0080] A sealing member 91 is located between the lower die member 2 and the locking mechanism 5, and the sealing member 91 is slidably connected to the mounting seat 1;

[0081] A sealing driving member 92 is provided on the mounting seat 1. The output end of the sealing driving member 92 is connected to the sealing member 91 for driving the sealing member 91 to contact or move away from the middle frame of the moving device in the accommodating groove 21 in the horizontal direction.

[0082] In this embodiment, the middle frame of the mobile device usually has various holes such as a headphone jack, an infrared hole, a data interface, etc. To detect the airtightness of the middle frame and these holes, a sealing mechanism 9 needs to be provided. In this application, the sealing driving member 92 can be used as a mechanical power source. When it is started, it converts electrical energy or other forms of energy into mechanical energy and transmits the power to the sealing member 91 through its output end. Or, the sealing driving member 92 is used as a handle or button driven by an external force for driving by other power sources or manually.

[0083] The sealing member 91 is slidably connected to the mounting seat 1. Driven by the sealing driving member 92, the sealing member 91 can move stably in the horizontal direction. When an airtightness test is required, the sealing driving member 92 drives the sealing member 91 to move towards the middle frame of the moving device in the accommodating groove 21, so that the sealing member 91 closely fits the corresponding holes on the middle frame to seal the middle frame.

[0084] Refer to Figures 1 to 4 , in some embodiments, a second through hole 514 is provided in the base 51 proposed in the embodiment of the present application. The sealing driving member 92 is provided on the side of the base 51 facing away from the sealing member 91. The sealing mechanism 9 further includes:

[0085] A connecting rod 93. The middle part of the connecting rod 93 passes through the second through hole 514. One end of the connecting rod 93 is connected to the sealing member 91, and the other end is connected to the output end of the sealing driving member 92.

[0086] In this embodiment, the second through hole 514 on the base 51 not only provides guidance and support for the connecting rod 93, but also enables the sealing driving member 92 to be arranged on the other side of the base 51. Compared with placing the sealing driving member 92 in other positions, this method greatly reduces the space occupied by the sealing mechanism 9.

[0087] For the entire test fixture, this means that without changing the overall volume, more layout space is reserved for other key components, providing strong support for the miniaturization and integration development of the test fixture, effectively improving the space utilization rate, and enabling the device to operate more efficiently in a limited space.

[0088] Refer to Figures 1 to 4, in some embodiments, the airtightness testing device for the middle frame of the mobile device proposed in the embodiments of the present application further includes a slide rail 10 and a slider 11. The slide rail 10 is arranged on the lower die member 2, the slider 11 is slidably connected to the slide rail 10, and the sealing member 91 is detachably connected to the slider 11.

[0089] In this embodiment, the slide rail 10 is fixedly arranged on the lower die member 2, providing an accurate movement guiding track for the slider 11. When the sealing driving member 92 pushes the sealing member 91 through the connecting rod 93, the slider 11 slides on the slide rail 10 along a predetermined linear direction. This process utilizes the low-friction and high-precision matching characteristics between the slider 11 and the slide rail 10, enabling the sealing member 91 to approach or move away from the middle frame of the mobile device in the accommodation groove 21 smoothly and accurately, realizing the sealing and unsealing actions.

[0090] Since the sealing member 91 is detachably connected to the slider 11, when testing with middle frames of different specifications of mobile devices, the sealing member 91 can be disassembled and replaced.

[0091] Refer to Figures 1 to 4 , in some embodiments, a first air hole 211 is opened on the bottom wall of the accommodation groove 21 proposed in the embodiments of the present application, and a second air hole 22 communicating with the first air hole 211 is opened on the side wall of the lower die member 2.

[0092] In this embodiment, the first air hole 211 is opened on the bottom wall of the accommodation groove 21 and is directly communicated with the middle frame of the mobile device placed in the accommodation groove 21. The second air hole 22 is arranged on the side wall of the lower die member 2 and is communicated with the first air hole 211. The two jointly build a flow path for the test gas. During the airtightness test, the detection gas can flow in through the second air hole 22 and then enter the inside of the middle frame of the mobile device through the first air hole 211, thereby providing the necessary gas input conditions for the airtightness test and enabling the test to be carried out smoothly.

[0093] Refer to Figures 1 to 4 , in some embodiments, the upper die member 3 proposed in the embodiments of the present application is elastically connected to the installation part 41.

[0094] In this embodiment, the upper die member 3 is elastically connected to the installation part 41. During the test, when pressure is applied to the middle frame of the mobile device, the upper die member 3 will receive a reaction force from the middle frame. The elastic connection can play a buffering role, avoiding damage to the middle frame, the upper die member 3, and the installation part 41 caused by excessive impact force due to rigid contact, prolonging the service life of each component, and reducing the maintenance cost of the equipment.

[0095] The elastic connection enables the upper die member 3 to adaptively move within a certain range to the shape and surface conditions of the middle frame of the mobile device. During the sealing process, even if there are slight dimensional deviations or surface unevenness in the middle frame, the upper die member 3 can better fit the middle frame through elastic deformation, enhance the sealing performance, reduce gas leakage, further improve the accuracy of the airtightness test, and ensure the reliability of the test results.

[0096] The above are only partial or preferred embodiments of the present invention. Neither the text nor the drawings can limit the scope of protection of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the overall concept of the present invention, or any direct / indirect application in other related technical fields is included in the scope of protection of the present invention.

Claims

1. A device for testing air tightness of a mobile device frame, characterized in that: include: Mounting seat; A lower mold component, arranged on the mounting seat, having a receiving groove for receiving the middle frame of the mobile device; An upper mold member, located on the upper side of the lower mold member, and the upper mold member can abut against the middle frame of the mobile device in the accommodating groove; A mounting member, comprising a mounting portion and a connecting portion connected to the mounting portion, wherein the mounting portion is used to connect the upper mold member; At least one locking mechanism, comprising a base provided on the mounting seat and two clamping claws provided on the base, the two clamping claws are arranged at intervals, the middle part of each clamping claw is rotatably connected to the base, the upper end of each clamping claw is configured with a clamping part, the lower end of each clamping claw is configured with a pressing part, and the two clamping parts can clamp the connecting part; The unlocking mechanism is arranged on the mounting seat, and comprises a driving member and a rolling member arranged at the output end of the driving member, wherein the driving member is used to drive the rolling member to move in a direction toward the pressing portion, so as to drive the two clamping portions to move away from each other to release the connecting portion.

2. The air tightness testing device for the mobile device middle frame according to claim 1, characterized in that: There are two locking mechanisms, which are spaced apart on opposite sides of the lower mold component; there are two connecting parts, which protrude from opposite sides of the mounting part respectively.

3. The air tightness testing device for the mobile device middle frame according to claim 1, characterized in that: The mobile device midframe air tightness testing device also includes a rotating shaft; mounting notches are recessed on opposite sides of the base, first mounting holes are opened on two side walls of the mounting notch, a second mounting hole is opened in the middle of the clamp, and the clamp and the base are rotatably connected by passing through the first mounting hole and the second mounting hole through the rotating shaft.

4. The air tightness testing device for the mobile device middle frame according to claim 3, characterized in that: The base is provided with a first through hole, and the first through hole is connected to the two mounting notches; the air tightness testing device for the frame of the mobile device further includes: An elastic member, wherein the middle portion of the elastic member is passed through the first through hole, and two ends of the elastic member respectively abut against one side of the two pressing portions facing the installation notch.

5. The air tightness testing device for the mobile device middle frame according to claim 1, characterized in that: The rolling component comprises: Two swing rods are arranged at intervals on both sides of the locking mechanism, the middle parts of the two swing rods are connected to the driving member, and one end of the two swing rods is rotatably connected to the mounting seat; Two rolling parts, the two rolling parts are respectively arranged at the other ends of the two swing rods; The two swing rods are driven by the driving member to rotate relative to the mounting seat, so that the two rolling members contact the pressing parts of the two clamping jaws, so that the clamping parts of the two clamping jaws move away from each other.

6. The air tightness testing device for the mobile device middle frame according to claim 1, characterized in that: The mobile device middle frame air tightness testing device further includes at least one sealing mechanism, and the sealing mechanism includes: A sealing member, located between the lower mold member and the locking mechanism, the sealing member being slidably connected to the mounting seat; A sealing driving member is arranged on the mounting seat, and an output end of the sealing driving member is connected to the sealing component to drive the sealing component to contact or move away from the mobile device middle frame in the accommodating groove in a horizontal direction.

7. The air tightness testing device for the mobile device middle frame according to claim 6, characterized in that: The base is provided with a second through hole, the sealing driving member is arranged on a side of the base facing away from the sealing member, and the sealing mechanism further comprises: A connecting rod, the middle portion of which is passed through the second through hole, one end of which is connected to the sealing component, and the other end of which is connected to the output end of the sealing driving component.

8. The air tightness testing device for the middle frame of a mobile device according to claim 6, characterized in that: The mobile device middle frame air tightness testing device further comprises a slide rail and a slider, wherein the slide rail is arranged on the lower mold component, the slider is slidably connected to the slide rail, and the sealing component is detachably connected to the slider.

9. The air tightness testing device for the middle frame of a mobile device according to claim 1, characterized in that: The bottom wall of the containing groove is provided with a first air hole, and the side wall of the lower mold component is provided with a second air hole communicating with the first air hole.

10. The air tightness testing device for the mobile device middle frame according to claim 1, characterized in that: The upper mold member is elastically connected to the mounting portion.

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