Connecting assembly and electronic equipment

Abstract

The utility model provides a connecting assembly and electronic equipment, and relates to the technical field of connecting structures, the connecting assembly comprises a screw and a first sealing ring, the screw comprises a screw cap, a polished rod and a screw rod, the screw cap, the polished rod and the screw rod are coaxially connected, the polished rod is sleeved with the first sealing ring, and the first sealing ring is arranged on the screw cap; the projection of the screw rod along the central axis covers at least one part of the projection of the first sealing ring along the central axis, and when the polished rod penetrates through the through hole of the first part to be assembled, at least one part of the screw cap and at least one part of the first sealing ring are located at the two axial ends of the through hole respectively. According to the connecting assembly, the purpose that the connecting assembly is not loosened on the first to-be-assembled part can be achieved by limiting the first sealing ring through the screw cap and the screw rod, meanwhile, the disassembly and assembly convenience of the connecting assembly can be effectively improved through the deformable performance of the first sealing ring, and the connecting stability of the connecting assembly is guaranteed.

Description

Technical Field

[0001] The present disclosure relates to the technical field of connection structures, and in particular to a connection component and an electronic device. Background Art

[0002] In the use of electronic equipment consisting of a protective box and functional components such as a power supply or switch inside it, for the purpose of regular inspection and maintenance or fault repair, a captive connection structure is usually provided on a structure consisting of two assembly parts such as a box body and a box door, or a box panel or an inspection panel with an inspection port, so as to ensure the convenience of frequent disassembly and assembly through the captive function.

[0003] However, the current non-detachable connection structure usually achieves its non-detachable function by being fixedly connected to a movable one of the two assembly parts, such as a box door. The overall disassembly and assembly is relatively cumbersome, and with the frequent disassembly and assembly between the two assembly parts, extrusion and deformation occur between the internal components of the non-detachable connection structure, affecting the connection stability of the non-detachable connection structure. Utility Model Content

[0004] In view of this, the present disclosure provides a connection assembly and an electronic device.

[0005] In a first aspect, the present disclosure provides a connection assembly, comprising a screw and a first sealing ring, wherein the screw comprises a screw cap, a polished rod and a screw rod, wherein the screw cap, the polished rod and the screw rod are coaxially connected, and the first sealing ring is sleeved on the polished rod, and the projection of the screw rod along the central axis covers at least a portion of the projection of the first sealing ring along the central axis. When the polished rod is passed through the through hole of the first component to be assembled, at least a portion of the screw cap and at least a portion of the first sealing ring are respectively located at the axial ends of the through hole.

[0006] Optionally, the first sealing ring includes a sealing portion and a positioning portion; in the axial direction of the through hole, the sealing portion abuts against both ends of the first to-be-assembled component and the second to-be-assembled component respectively;

[0007] In the axial direction of the through hole, at least one end of the sealing portion is connected to the positioning portion, and the first sealing ring is plug-connected to the first to-be-assembled component or the second to-be-assembled component via the positioning portion.

[0008] Optionally, in the axial direction of the through hole and in a direction gradually away from the sealing portion, the outer diameter of at least part of the shaft section of the positioning portion gradually decreases.

[0009] Optionally, in the axial direction of the through hole, at least one end of the sealing portion is provided with an annular portion, the annular portion is provided around the polished rod, and the annular portion is configured to be deformed by axial pressure;

[0010] When the positioning portion and the annular portion are provided at the same end of the sealing portion, the annular portion is disposed around the positioning portion at the same end, and the annular portion and the positioning portion are spaced apart in the radial direction.

[0011] Optionally, a threaded structure is provided inside the first sealing ring, the threaded structure is adapted to the threaded portion on the screw rod, and the diameter of the smooth rod is less than or equal to the minor diameter of the thread of the threaded portion.

[0012] In a second aspect, the present disclosure provides an electronic device, including a first component to be assembled, a second component to be assembled, and the connection assembly as described in the first aspect above. A through hole is provided on the first component to be assembled, and a mounting hole is provided on the second component to be assembled. The screw of the connection assembly passes through the through hole, the first sealing ring of the connection assembly, and the mounting hole.

[0013] Optionally, the screw rod of the screw is threadedly connected to the mounting hole.

[0014] Optionally, the mounting hole is a blind hole.

[0015] Optionally, in the axial direction of the through hole, a sealing hole is provided at the adjacent end faces of the first component to be assembled and the second component to be assembled. The sealing hole is formed in at least one of the first component to be assembled and the second component to be assembled, and the sealing hole communicates with the corresponding through hole or the mounting hole; at least a part of the first sealing ring is received in the sealing hole.

[0016] When the first sealing ring includes a positioning portion, the sealing hole includes a positioning hole provided corresponding to the positioning portion, and the positioning portion is inserted into the corresponding positioning hole.

[0017] Optionally, when the sealing hole includes a positioning hole provided corresponding to the positioning portion, the sealing hole further includes a support hole. The inner diameter of the support hole is larger than the inner diameter of the positioning hole. The support hole communicates with the positioning hole, and the end face of the support hole close to the positioning hole forms a support step. The sealing hole receives the sealing portion of the first sealing ring through the support hole and abuts against the first sealing ring through the support step.

[0018] Optionally, the electronic device further includes a second sealing ring. The second sealing ring is disposed around the first sealing ring, and the second sealing ring and the first sealing ring are spaced apart in the radial direction.

[0019] Both the first sealing ring and the second sealing ring are configured to abut against the first component to be assembled and the second component to be assembled respectively under the action of the screw of the connection assembly.

[0020] Optionally, at least one of the first fitting to be assembled and the second fitting to be assembled is provided with a sealing groove for accommodating the second sealing ring.

[0021] Optionally, the first fitting to be assembled further forms a groove structure, the through hole is located at the bottom of the groove structure, and the screw head of the connecting component is accommodated in the cavity of the groove structure.

[0022] At least one of the beneficial effects of multiple embodiments of the present disclosure is as follows: When the connecting component is used for connecting the first fitting to be assembled and the second fitting to be assembled, the first sealing ring can be placed at the adjacent end faces of the first fitting to be assembled and the second fitting to be assembled, and the screw sequentially passes through the through hole of the first fitting to be assembled and the first sealing ring and then is connected to, for example, the mounting hole of the second fitting to be assembled, so as to realize the connection between the first fitting to be assembled and the second fitting to be assembled. During the frequent disassembly and assembly of the first fitting to be assembled and the second fitting to be assembled, the screw is prevented from falling off in the first fitting to be assembled by means of the screw rod, the first sealing ring and the screw head. The structure is simple. On this basis, the deformable property of the first sealing ring facilitates the first sealing ring to be forced to be inserted into or separated from the screw, thereby effectively improving the disassembly and assembly convenience of the connecting component and avoiding the deformation of internal components during the use of the connecting component, ensuring the connection stability of the connecting component. Description of the Drawings

[0023] Figure 1 is a schematic structural diagram of the connecting component in the first embodiment of the present disclosure;

[0024] Figure 2 is a schematic structural diagram of the electronic device in the first embodiment of the present disclosure;

[0025] Figure 3 is a schematic structural diagram of the first sealing ring in the second embodiment of the present disclosure;

[0026] Figure 4 is a schematic structural diagram of the connecting component in the second embodiment of the present disclosure;

[0027] Figure 5 is a schematic structural diagram of the electronic device in the second embodiment of the present disclosure;

[0028] Figure 6 is a schematic structural diagram of the connecting component in the third embodiment of the present disclosure;

[0029] Figure 7 is an exploded schematic diagram of the connecting component in the fourth embodiment of the present disclosure;

[0030] Figure 8 is a schematic structural diagram of the electronic device in the fifth embodiment of the present disclosure;

[0031] Figure 9Schematic diagram of the structure of the electronic device in the sixth embodiment of the present disclosure;

[0032] Figure 10 Schematic diagram of the structure of the electronic device in the seventh embodiment of the present disclosure.

[0033] Explanation of reference numerals:

[0034] 1. Screw cap; 2. Smooth rod; 3. Screw rod; 31. Rod body; 32. Threaded part; 4. First sealing ring; 41. Sealing part; 42. Positioning part; 43. Ring part; 5. First fitting to be installed; 51. Through hole; 52. Groove structure; 6. Second fitting to be installed; 61. Installation hole; 62. Sealing groove; 7. Sealing hole; 71. Support hole; 72. Positioning hole; 73. Support step; 8. Second sealing ring. Detailed implementation manners

[0035] To make the above objects, features, and advantages of the present disclosure more obvious and understandable, the following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the accompanying drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0036] The Z-axis in the drawings represents the vertical direction, that is, the up and down positions, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the X-axis in the drawings represents the horizontal direction and is specified as the left and right positions, and the positive direction of the X-axis represents the right side, and the negative direction of the X-axis represents the left side; the Y-axis in the drawings represents the horizontal direction and is specified as the front and back positions, and the positive direction of the Y-axis represents the front side, and the negative direction of the Y-axis represents the back side. At the same time, it should be noted that the above-mentioned meanings of the Z-axis and X-axis are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present disclosure.

[0037] As used herein, the term "including" and its variations are open-ended, i.e., "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiment". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts such as "first", "second", etc. mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0038] It should be noted that the modifications of "one" and "a plurality" mentioned in this disclosure are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise clearly specified in the context, it should be understood as "one or more".

[0039] In the related art, between the lid and the box body of the protective box in an electronic device such as an inverter, a fastening connection is generally achieved through screws to realize the protection function of functional components such as power supplies in the box body and ensure the working stability of the functional components. At the same time, during the use of the electrical device, for the purpose of regular inspection, maintenance and fault repair of the functional components, the lid needs to be separated from the box body frequently to realize opening and closing. Therefore, in order to avoid the screws from falling off or even being lost during the frequent opening and closing of the lid, which affects the normal use of the protective box and the work efficiency of inspection and maintenance, a non-loosening connection structure is usually provided on the lid. A connection assembly is formed by the screw and the non-loosening connection structure. Among them, the non-loosening connection structure is fixedly connected to the end face of the lid facing away from the box body, and the screw can pass through the non-loosening connection structure to be connected to the box body. The non-loosening connection structure can also form an axial limit on the screw to prevent the screw from falling off the lid after being separated from the box body. However, when the connection assembly is installed and disassembled, the non-loosening connection structure needs to be fixedly connected first, and the overall loading and unloading is relatively cumbersome. Moreover, when the screw is connected to the box body, the gradually screwed-in screw is prone to mutual extrusion with the non-loosening connection structure, and then the screw and / or the non-loosening connection structure are deformed with the frequent disassembly and assembly of the lid and the box body, affecting the overall connection stability of the connection assembly.

[0040] As Figure 1 shown, a connection assembly provided by an embodiment of the present disclosure includes a screw and a first sealing ring 4. The screw includes a screw head 1, a smooth rod 2 and a screw rod 3. The screw head 1, the smooth rod 2 and the screw rod 3 are coaxially connected. The first sealing ring 4 is sleeved on the smooth rod 2. The projection of the screw rod 3 along the central axis covers at least a part of the projection of the first sealing ring 4 along the central axis. When the smooth rod 2 passes through the through hole 51 of the first fitting to be installed 5, at least a part of the screw head 1 and at least a part of the first sealing ring 4 are respectively located at the two axial ends of the through hole 51.

[0041] Specifically, as Figure 1 shown, the axial direction of the screw is the Z-axis direction, and the extending direction of the central axis is the Z-axis direction; the screw head 1, the smooth rod 2, and the screw rod 3 are usually integrally provided, and the threaded portion 32 on the screw rod 3 is the external connection interface of the screw. The first sealing ring 4 is an elastic rotary body structure with a variable diameter or an equal diameter. Exemplarily, the first sealing ring 4 is an elastic rotary body structure with an equal diameter. The first sealing ring 4 is sleeved on the smooth rod 2. The inner wall of the first sealing ring 4 can be attached to the surface of the smooth rod 2, or the inner wall of the first sealing ring 4 can be provided with a gap from the surface of the smooth rod 2 to allow the first sealing ring 4 to reciprocate along the smooth rod 2. In some cases, the first sealing ring 4 can be radially deformed under axial pressure to make its inner wall fit with the surface of the smooth rod 2.

[0042] As Figure 2 shown, the connecting assembly can be connected to the first fitting part 5 and the second fitting part 6 of the electronic device. Exemplarily, the first fitting part 5 is a lid, the second fitting part 6 is a box body, a through hole 51 is provided on the first fitting part 5, and a mounting hole 61 is provided on the second fitting part 6. The screw of the connecting assembly passes through the through hole 51, the first sealing ring 4 of the connecting assembly, and the mounting hole 61. When the smooth rod 2 passes through the through hole 51 of the first fitting part 5, at least part of the screw head 1 and at least part of the first sealing ring 4 are respectively located at the two axial ends of the through hole 51. Under the connection action of the screw of the connecting assembly, the first fitting part 5 and the second fitting part 6 are respectively abutted against the first sealing ring 4. After loosening the screw to release the connection between the screw and the second fitting part 6, since the projection of the screw rod 3 along the central axis covers at least a part of the projection of the first sealing ring 4 along the central axis, the screw rod 3 will limit the movement of the first sealing ring 4 in the direction away from the screw head 1 to a certain extent, so that the connecting assembly will remain on the first fitting part 5, realizing the non-loosening function.

[0043] In the first embodiment of the present disclosure, as Figure 1 shown, the screw head 1, the smooth rod 2, and the screw rod 3 of the screw are sequentially connected along the axial direction, and the first sealing ring 4 is sleeved on the smooth rod 2, so that it can be arranged at an axial interval from the screw head 1, and the projection of the screw rod 3 along the central axis is set to cover at least a part of the projection of the first sealing ring 4 along the central axis. With such a setting, the screw rod 3 can limit the first sealing ring 4 to prevent the first sealing ring 4 from sliding out of the screw rod 3 along the smooth rod 2, so as to cooperate with the screw head 1 for limiting, so that the first sealing ring 4 can only reciprocate on the smooth rod 2, that is, the screw head 1, the smooth rod 2, the screw rod 3, and the first sealing ring 4 form a connecting assembly with a non-loosening function. Thus, as Figure 2As shown, when the connecting component is used to connect the first fitting to be assembled 5 and the second fitting to be assembled 6, the first sealing ring 4 can be placed at the adjacent end faces of the first fitting to be assembled 5 and the second fitting to be assembled 6, and the screw sequentially passes through the through hole 51 of the first fitting to be assembled 5 and the first sealing ring 4 and then is connected to, for example, the mounting hole 61 of the second fitting to be assembled 6, so as to realize the connection between the first fitting to be assembled 5 and the second fitting to be assembled 6. During the frequent disassembly and assembly of the first fitting to be assembled 5 and the second fitting to be assembled 6, the screw is prevented from loosening and falling off in the first fitting to be assembled 5 by means of the screw rod 3, the first sealing ring 4 and the screw cap 1. The structure is simple. On this basis, the deformable property of the first sealing ring 4 facilitates the first sealing ring 4 to be forced to be inserted into the screw or separated from the screw, thereby effectively improving the disassembly and assembly convenience of the connecting component and avoiding the deformation of internal components during the use of the connecting component, and ensuring the connection stability of the connecting component.

[0044] The first sealing ring 4 also seals at least the adjacent end faces of the first fitting to be assembled 5 and the second fitting to be assembled 6 in the circumferential direction of the screw, reducing the possibility that the second fitting to be assembled 6 communicates with the external space of the electronic device through the adjacent end face and the through hole 51, and effectively improving the sealing and waterproof performance of the electronic device. In some cases, when the first sealing ring 4 deforms under the axial pressure, it can fit with the smooth rod 2, further improving the sealing and waterproof performance of the electronic device.

[0045] Optionally, the first sealing ring 4 includes a sealing portion 41 and a positioning portion 42; in the axial direction of the through hole 51, both ends of the sealing portion 41 are respectively abutted against both ends of the first fitting to be assembled 5 and the second fitting to be assembled 6;

[0046] In the axial direction of the through hole 51, at least one end of the sealing portion 41 is connected with a positioning portion 42, and the first sealing ring 4 is inserted and connected with the first fitting to be assembled 5 or the second fitting to be assembled 6 through the positioning portion 42.

[0047] As Figures 3 to 5 shown in the third embodiment of the present disclosure, it shows the case where the positioning portion 42 is arranged on the side of the sealing portion 41 close to the screw rod 3. In this case, the positioning portion 42 is inserted into the positioning hole 72 of, for example, the sealing hole 7 described later of the second fitting to be assembled 6, so as to realize the relative position positioning of the first sealing ring 4 and the second fitting to be assembled 6.

[0048] It should be understood that in another implementation manner, the positioning portion 42 can also be arranged on the side of the sealing portion 41 close to the screw rod 3. In this case, the first fitting to be assembled 5 is provided with a sealing hole 7 having a positioning hole 72 corresponding to the positioning portion 42.

[0049] In this way, the arrangement of the positioning portion 42 on the first sealing ring 4 facilitates the relative position positioning of the first sealing ring 4 and the first fitting to be assembled 5 or the second fitting to be assembled 6. The structure is simple and the practicability is strong.

[0050] Further, in the axial direction of the through hole 51 and in the direction gradually away from the sealing portion 41, the outer diameter of at least a part of the shaft section of the positioning portion 42 gradually decreases.

[0051] At least a part of the circumferential side surface of the shaft section of the positioning portion 42 may be located on a conical surface or may also be located on a spherical surface.

[0052] Exemplarily, as Figure 3 and Figure 4 shown, both the sealing portion 41 and the positioning portion 42 are rotational body structures arranged in a ring shape around their own central axes, and the sealing portion 41 and the positioning portion 42 are integrally formed; from top to bottom, the outer diameter of the positioning portion 42 gradually decreases. For example, the positioning portion 42 is an inverted hollow frustum structure, and the sealing portion 41 is a hollow cylindrical structure, that is, the circumferential side surface of the positioning portion 42 is located on a conical surface, the outer diameter of the hollow cylindrical structure is greater than the maximum value of the outer diameter of the positioning portion 42, and the end surfaces of the hollow cylindrical structure in the up and down directions form a support surface for abutting against the first fitting to be installed 5 or the second fitting to be installed 6.

[0053] In this way, it is convenient for the positioning portion 42 to be inserted into the positioning hole 72 described later, and it is convenient for positioning the relative positions of the first sealing ring 4 and the first fitting to be installed 5 or the second fitting to be installed 6.

[0054] Optionally, in the axial direction of the through hole 51, at least one end of the sealing portion 41 is provided with an annular portion 43, the annular portion 43 surrounds the optical rod 2, and the annular portion 43 is configured to be deformed under axial pressure.

[0055] As Figure 7 shown, it shows the case where the annular portion 43 is provided at the lower end of the sealing portion 41, and this case will be taken as an example for subsequent description, but it should be understood that another annular portion 43 may also be provided at the upper end of the sealing portion 41, and details will not be described later.

[0056] In this case, when the first fitting to be installed 5 and the second fitting to be installed 6 are assembled and connected, the annular portion 43 at the lower end of the sealing portion 41 can abut against the second fitting to be installed 6. Under the tension of the screw, the annular portion 43 is deformed under the action of the extrusion force and extends in the radial direction of the first sealing ring 4, which can enhance the elastic performance of the first sealing ring 4, achieve a better buffering and protection effect between the first fitting to be installed 5 and the second fitting to be installed 6, prevent the screw from loosening, and thus improve the connection effect of the connection assembly. At the same time, it can also enhance the sealing performance between the first sealing ring 4 and the second fitting to be installed 6 at the adjacent end surfaces, with a simple structure and strong practicability.

[0057] As Figure 7As shown, further, when the positioning portion 42 and the annular portion 43 are provided at the same end of the sealing portion 41, the annular portion 43 is disposed around the positioning portion 42 at the same end, and the annular portion 43 and the positioning portion 42 are spaced apart in the radial direction.

[0058] In this case, under the tension of the screw, the annular portion 43 can abut against the second fitting 6 to be installed, and deform under the action of the extrusion force, and extend along the radial direction of the first sealing ring 4 toward or away from the junction of the positioning portion 42 and the sealing portion 41, which can not only assist the sealing portion 41 to further improve the sealing effect at the joint of the first fitting 5 and the second fitting 6, but also fill the junction of the positioning portion 42 and the sealing portion 41 by deforming and extending, thereby improving the sealing effect at the screw installation position and further improving the sealing and waterproof performance of the electronic device.

[0059] As Figure 6 shown, in the third embodiment of the present disclosure, a threaded structure is provided inside the first sealing ring 4, and the threaded structure is adapted to the threaded portion 32 on the screw rod 3, and the diameter of the smooth rod 2 is less than or equal to the minor diameter of the thread of the threaded portion 32.

[0060] Specifically, the screw rod 3 includes a rod body 31 and a threaded portion 32 located on the rod body 31. The diameter of the end of the rod body 31 close to the smooth rod 2 is less than or equal to the minor diameter of the thread of the threaded portion 32, and the diameters of the rod body 31 and the smooth rod 2 are the same. It should be understood that during processing, the screw is usually provided as an integral structure, and details are not described here.

[0061] Thus, since the threaded structure is adapted to the threaded portion 32, the first sealing ring 4 can rotate relative to the screw rod 3 and the first sealing ring 4 can move from the screw rod 3 to the smooth rod 2 in the state of threaded connection between the threaded structure and the threaded portion 32, so as to realize the sleeving of the first sealing ring 4 onto the smooth rod 2, which can avoid relying on the deformation ability of the first sealing ring 4 to pass over the screw rod 3 and sleeve onto the smooth rod 2. At the same time, the blocking performance of the threaded portion 32 on the first sealing ring 4 can be maintained to ensure the non-loosening function of the screw in the first fitting 5.

[0062] As Figure 2 shown, an electronic device provided by an embodiment of the present disclosure includes a first fitting 5, a second fitting 6 and a connection assembly as in the above embodiment. A through hole 51 is provided on the first fitting 5, and a mounting hole 61 is provided on the second fitting 6. The screw of the connection assembly passes through the through hole 51, the first sealing ring 4 of the connection assembly and the mounting hole 61.

[0063] Specifically, a through hole 51 through which the optical rod 2 of the connection assembly passes is provided on the first fitting to be installed 5, and a mounting hole 61 for installing the screw rod 3 of the connection assembly is provided on the second fitting to be installed 6. The first sealing ring 4 of the connection assembly is located at the adjacent end faces of the first fitting to be installed 5 and the second fitting to be installed 6, and the sealing ring 4 abuts against the first fitting to be installed 5 and the second fitting to be installed 6 respectively.

[0064] Specifically, the first fitting to be installed 5 and the second fitting to be installed 6 can be respectively a box body with a maintenance opening and a maintenance cover plate covering the maintenance opening, or can also be respectively a box body with an opening and a cover covering the box body. The through hole 51 penetrates through the cover plate, and the mounting hole 61 is a through hole or a blind hole provided at the edge of the opening of the box body.

[0065] Exemplarily, the mounting hole 61 is a through hole provided at the edge of the opening of the box body. In this case, in some scenarios, the screw rod 3 passes through the mounting hole 61 and is threadedly connected to a nut at one end of the mounting hole 61. In other scenarios, the screw rod 3 is inserted into the mounting hole 61 and is threadedly connected to the mounting hole 61.

[0066] As Figure 2 shown, exemplarily, the mounting hole 61 is a blind hole provided at the edge of the opening of the box body. In this case, the screw rod 3 is inserted into the mounting hole 61 and is threadedly connected to the mounting hole 61. The first sealing ring 4 can seal the two at the adjacent end faces of the cover plate and the box body in the up and down direction. Even if the first sealing ring 4 can move relative to the optical rod 2, the sealing performance of the connection component at the connection can still be maintained through the first sealing ring 4.

[0067] As Figure 1 shown, the screw cap 1, the optical rod 2, and the screw rod 3 of the screw are connected in sequence along the axial direction. The first sealing ring 4 is sleeved on the optical rod 2, so that it can be arranged at an axial interval from the screw cap 1. The projection of the screw rod 3 along the central axis is set to cover at least a part of the projection of the first sealing ring 4 along the central axis. With such a setting, the screw rod 3 can limit the first sealing ring 4, preventing the first sealing ring 4 from sliding out of the screw rod 3 along the optical rod 2, and thus cooperating with the screw cap 1 for limiting, so that the first sealing ring 4 can only reciprocate on the optical rod 2. That is, the screw cap 1, the optical rod 2, the screw rod 3, and the first sealing ring 4 form a connection component with a non-loosening function. In this way, as Figure 2As shown in the figure, when connecting the first fitting 5 and the second fitting 6 to which the connecting component is applied, the first sealing ring 4 can be placed at the adjacent end faces of the first fitting 5 and the second fitting 6, and the screw sequentially passes through the through hole 51 of the first fitting 5 and the first sealing ring 4 and then is connected to, for example, the mounting hole 61 of the second fitting 6 to realize the connection between the first fitting 5 and the second fitting 6. During the frequent disassembly and assembly of the first fitting 5 and the second fitting 6, the screw is prevented from loosening in the first fitting 5 by means of the screw rod 3, the first sealing ring 4 and the screw cap 1. The structure is simple. On this basis, the deformable property of the first sealing ring 4 facilitates the first sealing ring 4 to be forced into or separated from the screw, thus effectively improving the disassembly and assembly convenience of the connecting component and avoiding the deformation of the internal components during the use of the connecting component, ensuring the connection stability of the connecting component.

[0068] Referring to Figure 8 , as Figure 5 shown, in the axial direction of the through hole 51, a sealing hole 7 is provided at the adjacent end faces of the first fitting 5 and the second fitting 6. At least one of the first fitting 5 and the second fitting 6 is formed with the sealing hole 7, and the sealing hole 7 communicates with the corresponding through hole 51 or mounting hole 61; at least a part of the first sealing ring 4 is received in the sealing hole 7.

[0069] It should be noted that the sealing hole 7 can be provided in one or more of the first fitting 5 and the second fitting 6 according to the structural design of the first sealing ring 4 and the need to accommodate the first sealing ring 4.

[0070] Exemplarily, when the first sealing ring 4 does not have a positioning portion 42 but only has a sealing portion 41, one or more of the first fitting 5 and the second fitting 6 are provided with the sealing hole 7, and the sealing hole 7 includes a support hole 71 for supporting the sealing portion 41.

[0071] It should be understood that when the first sealing ring 4 includes a positioning portion 42, the sealing hole 7 includes a positioning hole 72 provided corresponding to the positioning portion 42, and the positioning portion 42 is inserted into the corresponding positioning hole 72.

[0072] It should be understood that when the first sealing ring 4 only has one positioning portion 42, the sealing hole 7 can be provided as one or more.

[0073] Exemplarily, as Figure 5In the second embodiment of the present disclosure as shown, when the positioning portion 42 is provided only at one end of the sealing portion 41 close to the screw 3, a sealing hole 7 is provided on the second fitting to be assembled 6, and the sealing hole 7 should have a positioning hole 72 for inserting the positioning portion 42. Specifically, a positioning hole 72 is formed by the depression of the opening edge of the mounting hole 61 through which the screw 3 penetrates, and the positioning portion 42 of the first sealing ring 4 can be placed in the positioning hole 72. With this arrangement, during the process of screwing the screw 3 into the mounting hole 61, the positioning portion 42 can cooperate with the positioning hole 72 to achieve guiding during the screwing-in installation of the screw and the deformation sealing of the first sealing ring 4, thereby ensuring the stability during the fastening connection of the screw and the sealing and waterproof effect of the electronic device. In this case, the sealing portion 41 of the first sealing ring 4 is used to cover the opening edge of the through hole 51. Generally, the inner diameter of the mounting hole 61 is smaller than the inner diameter of the through hole 51 so that the screw 3 can pass through the through hole 51, the outer diameter of the first sealing ring 4 is larger than the inner diameter of the through hole 51, and the inner diameter of the first sealing ring 4 is smaller than the inner diameter of the through hole 51, ensuring that the first sealing ring 4 contacts the edge of the through hole 51 to achieve the sealing function.

[0074] Exemplarily, as Figure 10 In the seventh embodiment of the present disclosure as shown, when the positioning portion 42 is provided only at one end of the sealing portion 41 close to the screw 3, a sealing hole 7 is provided on the second fitting to be assembled 6, and the sealing hole 7 should have a positioning hole 72 for inserting the positioning portion 42, and a sealing hole 7 is provided on the first fitting to be assembled 5, and the sealing hole 7 has a supporting hole 71 for supporting the sealing portion 41.

[0075] In this way, the first sealing ring 4 can be partially accommodated in the sealing hole 7 to position the first sealing ring 4. For example, when the positioning portion 42 is provided on the first sealing ring 4, the positioning hole 72 of the sealing hole 7 is used to radially limit the positioning portion 42, and the screw can also be radially limited to prevent the screw from tilting during installation.

[0076] As Figure 8 shown, optionally, when the sealing hole 7 includes a positioning hole 72 corresponding to the positioning portion 42, the sealing hole 7 further includes a supporting hole 71. The inner diameter of the supporting hole 71 is larger than the inner diameter of the positioning hole 72. The supporting hole 71 is communicated with the positioning hole 72, and the end surface of the supporting hole 71 close to the positioning hole 72 forms a supporting step 73. The sealing hole 7 accommodates the sealing portion 41 of the first sealing ring 4 through the supporting hole 71 and abuts against the first sealing ring 4 through the supporting step 73.

[0077] Specifically, in the fifth embodiment of the present disclosure, as Figure 8As shown, it shows the situation where a sealing hole 7 is provided on the second fitting to be installed 6. The sealing hole 7 is composed of a support hole 71 and a positioning hole 72. Among them, the opening edge of the mounting hole 61 through which the screw 3 penetrates is recessed to form the sealing hole 7. The positioning portion 42 of the first sealing ring 4 can be placed in the positioning hole 72, and the outer diameter of the positioning portion 42 gradually decreases from top to bottom, which can cooperate with the positioning hole 72 to realize the positioning and guiding during the installation of the first sealing ring 4, thereby ensuring the stability during the tightening connection of the screw; on this basis, the inner diameter value of the support hole 71 is greater than the inner diameter value of the positioning hole 72. The support hole 71 and the positioning hole 72 communicate to form a support step 73, and the sealing portion 41 of the first sealing ring 4 can be placed in the support hole 71. The end face of the sealing portion 41 facing the positioning portion 42 is used to abut against the support step 73. Such a setting can not only achieve the sealing and waterproofing of the connection between the first fitting to be installed 5 and the second fitting to be installed 6 through the cooperation of the inner wall of the support hole 71 and the support step 73 with the sealing portion 41 respectively, but also limit the radial movement of the sealing portion 41 through the mutual limitation between the positioning hole 72 and the sealing portion 41, effectively preventing the sealing portion 41 from shifting due to the radial force under the drive of the rotation of the screw, and avoiding affecting the sealing effect of the first sealing ring 4.

[0078] Of course, it should be understood that in this case, a sealing hole 7 can also be provided on the first fitting to be installed 5, such as Figure 9 As shown, in the sixth embodiment of the present disclosure, a sealing hole 7 is provided on the second fitting to be installed 6. The sealing hole 7 has a positioning hole 72 and a support hole 71. A sealing hole 7 is provided on the first fitting to be installed 5, and the sealing hole 7 only has a support hole 71. In this way, the first sealing ring 4 can be accommodated by using the two sealing holes 7, which can reduce the depth requirement for a single sealing hole 7.

[0079] Such as Figure 8 As shown, the electronic device further includes a second sealing ring 8. The second sealing ring 8 is arranged around the first sealing ring 4, and the second sealing ring 8 is spaced from the first sealing ring 4 in the radial direction;

[0080] Both the first sealing ring 4 and the second sealing ring 8 are configured to abut against the first fitting to be installed 5 and the second fitting to be installed 6 respectively under the action of the screw of the connection assembly.

[0081] Specifically, under the tension of the screw, the first sealing ring 4 abuts against the first fitting to be installed 5 and the second fitting to be installed 6 respectively, and the second sealing ring 8 abuts against the first fitting to be installed 5 and the second fitting to be installed 6 respectively.

[0082] In this alternative embodiment, the setting of the first sealing ring 4 and the second sealing ring 8 can perform multiple seals on the adjacent end faces of the first fitting to be installed 5 and the second fitting to be installed 6, improving the sealing reliability between the two.

[0083] Furthermore, at least one of the first fitting part to be installed 5 and the second fitting part to be installed 6 is provided with a sealing groove 62 for accommodating the second sealing ring 8. The second sealing ring 8 is positioned by the sealing groove 62.

[0084] It should be noted that in the above embodiments, the depth of the sealing groove 62 should be less than the thickness of the second sealing ring 8. Correspondingly, the depth of the support hole 71 (when the sealing holes 7 are two, it is the sum of the depths of the two support holes 71) is less than the thickness of the sealing part 41 of the first sealing ring 4.

[0085] In this way, the second sealing ring 8 is accommodated and positioned by the sealing groove 62, and the position reliability of the second sealing ring 8 is relatively high, with a simple structure and strong practicability.

[0086] Optionally, the first fitting part to be installed 5 further forms a groove structure 52. The through hole 51 is located at the bottom of the groove structure 52, and the screw cap 1 of the connecting component is accommodated in the cavity of the groove structure 52.

[0087] As Figure 8 shown, the groove structure 52 is formed by recessing from the cover body towards the inside of the box body. The through hole 51 is located at the center of the bottom of the groove structure 52, and the bottom of the groove structure 52 abuts against the first sealing ring 4 and the second sealing ring 8.

[0088] Compared with the first fitting part to be installed 5 arranged in a plane, by providing the groove structure 52 on the first fitting part to be installed 5, the screw cap 1 can be placed in the groove of the groove structure 52 to achieve a countersunk head setting, reducing the possibility of scratching or hitting the screw cap 1.

[0089] The electronic device can be an inverter, etc., which will not be elaborated here.

[0090] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present disclosure.

Claims

1. A connecting component, characterized in that, It includes a screw and a first sealing ring (4). The screw includes a screw head (1), a smooth rod (2) and a screw rod (3). The screw head (1), the smooth rod (2) and the screw rod (3) are coaxially connected. The first sealing ring (4) is sleeved on the smooth rod (2). The projection of the screw rod (3) along the central axis covers at least a part of the projection of the first sealing ring (4) along the central axis. When the smooth rod (2) passes through a through hole (51) of a first fitting to be assembled (5), at least a part of the screw head (1) and at least a part of the first sealing ring (4) are respectively located at two axial ends of the through hole (51).

2. The connection component according to claim 1, characterized in that, The first sealing ring (4) includes a sealing part (41) and a positioning part (42); axially of the through hole (51), the sealing part (41) abuts against two ends of the first fitting to be assembled (5) and a second fitting to be assembled (6) respectively; Axially of the through hole (51), at least one end of the sealing part (41) is connected with the positioning part (42), and the first sealing ring (4) is inserted and connected with the first fitting to be assembled (5) or the second fitting to be assembled (6) through the positioning part (42).

3. The connecting component according to claim 2, characterized in that Axially of the through hole (51) and in a direction gradually away from the sealing part (41), the outer diameter of at least a part of the axial section of the positioning part (42) gradually decreases.

4. The connection component according to any one of claims 2 to 3, characterized in that Axially of the through hole (51), at least one end of the sealing part (41) is provided with an annular part (43). The annular part (43) is arranged around the smooth rod (2), and the annular part (43) is configured to be deformed under axial pressure; When the positioning part (42) and the annular part (43) are provided at the same end of the sealing part (41), the annular part (43) is arranged around the positioning part (42) at the same end, and the annular part (43) and the positioning part (42) are arranged at a radial interval.

5. The connection component according to any one of claims 1 to 3, characterized in that The first sealing ring (4) is provided with a thread structure inside, and the thread structure is adapted to a thread part (32) on the screw rod (3). The diameter of the smooth rod (2) is less than or equal to the minor diameter of the thread of the thread part (32).

6. An electronic device, characterized in that, It includes a first fitting to be assembled (5), a second fitting to be assembled (6) and a connecting component as described in any one of claims 1 to 5. A through hole (51) is provided on the first fitting to be assembled (5), and a mounting hole (61) is provided on the second fitting to be assembled (6). The screw of the connecting component passes through the through hole (51), the first sealing ring (4) of the connecting component and the mounting hole (61).

7. The electronic device according to claim 6, wherein The screw rod (3) of the screw is threadedly connected with the mounting hole (61).

8. The electronic device according to claim 7, wherein The mounting hole (61) is a blind hole.

9. The electronic device according to claim 6, wherein Axially of the through hole (51), a sealing hole (7) is provided at the adjacent end faces of the first fitting to be installed (5) and the second fitting to be installed (6). At least one of the first fitting to be installed (5) and the second fitting to be installed (6) forms the sealing hole (7), and the sealing hole (7) communicates with the corresponding through hole (51) or the mounting hole (61); at least a part of the first sealing ring (4) is received in the sealing hole (7). When the first sealing ring (4) includes a positioning portion (42), the sealing hole (7) includes a positioning hole (72) provided corresponding to the positioning portion (42), and the positioning portion (42) is inserted into the corresponding positioning hole (72).

10. The electronic device according to claim 9, wherein When the sealing hole (7) includes a positioning hole (72) provided corresponding to the positioning portion (42), the sealing hole (7) further includes a support hole (71). The inner diameter of the support hole (71) is larger than the inner diameter of the positioning hole (72). The support hole (71) communicates with the positioning hole (72), and the end face of the support hole (71) close to the positioning hole (72) forms a support step (73). The sealing hole (7) receives the sealing portion (41) of the first sealing ring (4) through the support hole (71) and abuts against the first sealing ring (4) through the support step (73).

11. The electronic device according to claim 6, wherein The electronic device further includes a second sealing ring (8). The second sealing ring (8) is disposed around the first sealing ring (4), and the second sealing ring (8) is spaced from the first sealing ring (4) in the radial direction. Both the first sealing ring (4) and the second sealing ring (8) are configured to abut against the first fitting to be installed (5) and the second fitting to be installed (6) respectively under the action of the screw of the connection assembly.

12. The electronic device according to claim 11, wherein At least one of the first fitting to be installed (5) and the second fitting to be installed (6) is provided with a sealing groove (62) for receiving the second sealing ring (8).

13. The electronic device according to any one of claims 6 to 12, characterized in that, The first fitting to be installed (5) further forms a groove structure (52). The through hole (51) is located at the bottom of the groove structure (52), and the screw head (1) of the connection assembly is received in the cavity of the groove structure (52).

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