Insulation protection structure, fastening assembly and electronic equipment

Abstract

The utility model belongs to the technical field of insulation protection, and discloses an insulation protection structure, a fastening assembly and electronic equipment. The insulation protection structure comprises an insulation sleeve, the insulation sleeve comprises a first annular wall and a supporting bottom wall, the first annular wall and the supporting bottom wall define a first containing groove with an opening, and a mounting hole is formed in the supporting bottom wall; the mounting hole is used for allowing the fastener to penetrate out of the first containing groove from the interior of the first containing groove, and the first containing groove is used for wrapping the side face of the fastener. The technical problem that in the prior art, when the safety distance between a metal fastener and a strong current device is insufficient, the electric gap and the creepage distance required under the corresponding standard can still be met can be solved.

Description

Technical Field

[0001] This application belongs to the field of insulation protection technology, specifically relating to an insulation protection structure, fastening components, and electronic equipment. Background Technology

[0002] In the field of electrical engineering, ensuring the safe operation and long-term stability of equipment is of paramount importance. Therefore, the concepts of clearance and creepage distance have become indispensable parameters in the design and testing of electrical equipment, directly affecting its safety and reliability.

[0003] In the pursuit of low cost and miniaturization, existing electrical equipment further compresses the internal space of the product, which not only makes the overall layout of the product more difficult, but also leads to insufficient safety distance between non-energized metal fasteners and high-voltage components after the printed circuit board (PCB) is tightly arranged. That is, the electrical clearance and creepage distance required by the corresponding standards are not met.

[0004] Therefore, how to ensure that metal fasteners and high-voltage electrical components can still meet the electrical clearance and creepage distance requirements of the corresponding standards when the safety distance is insufficient is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide an insulating protective structure, fastening components, and electronic devices to solve the technical problem in the prior art that when the safety distance between metal fasteners and high-voltage components is insufficient, the electrical clearance and creepage distance required by the corresponding standards can still be met.

[0006] To achieve the above objectives, the first aspect of this application provides an insulating protective structure, comprising: an insulating sleeve, the insulating sleeve including a first annular wall and a supporting bottom wall, the first annular wall and the supporting bottom wall forming a first receiving groove with an opening, the supporting bottom wall having a mounting hole; the mounting hole is used for a fastener to pass through the first receiving groove to the outside of the first receiving groove, the first receiving groove being used to cover the side of the fastener.

[0007] In some embodiments, at least one limiting protrusion is also provided on the support bottom wall, the limiting protrusion being used to position the insulating sleeve.

[0008] In some embodiments, the insulating protective structure includes at least two limiting protrusions, each of which is evenly arranged around the circumference of the mounting hole.

[0009] In some embodiments, the insulating protective structure further includes: an insulating plug, the insulating plug including a second annular wall and a protective top wall, the second annular wall and the protective top wall enclosing to form a second receiving groove with an opening; the insulating plug is fixed in the first receiving groove, and the second annular wall abuts against the inner side of the first annular wall, the protective top wall covers the opening of the first receiving groove, and the second receiving groove is used to cover the top surface of the fastener.

[0010] In some embodiments, the first annular wall and the second annular wall are interference-fitted.

[0011] The second aspect of this application also provides a fastening assembly, including a fastener and an insulating protective structure according to any one of the first aspect embodiments. The fastener includes a head and a mounting portion, the head being covered within a first receiving groove, and the mounting portion extending from a mounting hole to the outside of the insulating sleeve.

[0012] The second aspect of this application also provides another fastening assembly, including a fastener and the insulating protective structure in the first aspect embodiment. The fastener includes a head and a mounting portion. The head is covered in a first receiving groove, and the mounting portion extends from a mounting hole to the outside of the insulating sleeve. The second receiving groove covers the side of the head.

[0013] An embodiment of the third aspect of this application also provides an electronic device, including a first electrical component, a second electrical component, a mounting component, a fastener, and an insulating protective structure of any one of the embodiments of the first aspect, wherein the second electrical component is mounted on the first electrical component, and the fastener extends from the mounting hole to the outside of the insulating sleeve and mounts the first electrical component on the mounting component.

[0014] The embodiments of the third aspect of this application also provide another electronic device, including a first electrical component, a second electrical component, a mounting component, a fastener, and an insulating protective structure as in the first aspect embodiment, wherein the second electrical component is mounted on the first electrical component, the fastener extends through the mounting hole to the outside of the insulating sleeve, and mounts the first electrical component on the mounting component; and the first electrical component is provided with at least one limiting groove, the limiting groove being adapted to a limiting protrusion.

[0015] The embodiments of the third aspect of this application also provide another electronic device, including a first electrical component, a second electrical component, a third electrical component, a mounting component, a fastener, and an insulating protective structure as in the first aspect embodiment, wherein the second electrical component is mounted on the first electrical component, the fastener extends through a mounting hole to the outside of the insulating sleeve and mounts the first electrical component on the mounting component, and the third electrical component is fixed on the side of the insulating sleeve away from the first electrical component.

[0016] The beneficial effects of the insulating protective structure, fastening assembly, and electronic equipment provided in this application are as follows: the first annular wall and the supporting bottom wall can prevent the head of the fastener from being electrically connected to surrounding live devices, and the first receiving groove can completely cover the side of the fastener head, thereby improving the insulation effect between the peripheral side of the fastener and surrounding live devices. This application can solve the technical problem in the prior art where metal fasteners and high-voltage electrical devices can still meet the electrical clearance and creepage distance requirements under the corresponding standards when the safety distance is insufficient. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Schematic diagram of the insulating protection structure provided in some embodiments of this application;

[0019] Figure 2 This is an exploded view of the insulation protection structure provided in some embodiments of this application;

[0020] Figure 3 Cross-sectional views of the insulating protective structure provided in some embodiments of this application;

[0021] Figure 4 A schematic diagram of a fastening assembly provided in some embodiments of this application;

[0022] Figure 5 A schematic diagram of an electronic device provided for some embodiments of this application.

[0023] The following are the labeling elements in the figure:

[0024] 1000. Electronic devices;

[0025] 100. Fastening components;

[0026] 10. Insulating protective structure; 11. Insulating sleeve; 111. First annular wall; 112. Supporting bottom wall; 1121. Mounting hole; 113. Limiting protrusion; 114. First receiving groove; 12. Insulating plug; 121. Second annular wall; 122. Protective top wall; 123. Second receiving groove;

[0027] 20. Fastener; 21. Head; 22. Mounting part;

[0028] 200. First electrical component;

[0029] 300. Installation components;

[0030] 400. Third electrical component;

[0031] 500. Second electrical component. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] An embodiment of the first aspect of this application provides an insulating protective structure capable of insulating and isolating the heads of fasteners such as bolts, screws, and rivets from adjacent live devices.

[0037] An embodiment of the first aspect of this application provides an insulating protective structure; please refer to... Figure 1 and Figure 3 The insulating protective structure 10 includes an insulating sleeve 11. The insulating sleeve 11 includes a first annular wall 111 and a supporting bottom wall 112. The first annular wall 111 and the supporting bottom wall 112 enclose a first receiving groove 114 with an opening. The supporting bottom wall 112 is provided with a mounting hole 1121.

[0038] The insulating sleeve 11 is used to impede the electrical connection between conductors, increase the creepage distance and clearance, and the insulating sleeve 11 includes insulating material.

[0039] The first annular wall 111 is an annular structure with openings at both ends. For ease of description, the first annular wall 111 is defined as extending along the first direction X, that is, the openings at both ends of the first annular wall 111 are arranged along the first direction X. In other directions perpendicular to the first direction X, the first annular wall 111 can prevent the head of the fastener inside the insulating sleeve 11 from being electrically connected to the live device outside the insulating sleeve 11.

[0040] A supporting bottom wall 112 is connected to the opening of the first annular wall 111. The supporting bottom wall 112 and the first annular wall 111 form an insulating sleeve 11 with a first receiving groove 114. The supporting bottom wall 112 can prevent the head of the fastener in the insulating sleeve 11 from being electrically connected to a live device located on the side of the supporting bottom wall 112 away from the first annular wall 111 along the first direction X. The mounting hole 1121 is used to allow the fastener to pass through the first receiving groove 114 to the outside of the first receiving groove 114. That is, the fastener can enter the insulating sleeve 11 from the opening of the first receiving groove 114 and can pass through the mounting hole 1121 and be located on the side of the supporting bottom wall 112 away from the first annular wall 111 along the first direction X. The supporting bottom wall 112 can support the head of the fastener, allowing the fastener to pass through the mounting hole 1121 and connect with other devices, and hold the supporting bottom wall 112 against other devices. The fastener is a metal fastener. Optionally, the supporting bottom wall 112 and the first annular wall 111 are integrally formed, resulting in high production efficiency for the insulating sleeve 11. Optionally, the insulating sleeve 11 may include materials such as rubber and nylon, which have good electrical insulation, high strength, and wear resistance. The insulating sleeve 11 can stably support the fasteners without affecting the subsequent installation of fasteners or the strength and rigidity of the local structure after installation.

[0041] The first receiving groove 114 is used to cover the side of the fastener, that is, the first receiving groove 114 can completely cover the side of the fastener head. In the first direction X, the depth of the first receiving groove 114 is greater than or equal to the size of the fastener head, and the size of the first annular wall 111 is greater than or equal to the size of the fastener head.

[0042] In use, the fastener is passed through the mounting hole 1121 and the head of the fastener is placed into the first receiving groove 114 of the insulating sleeve 11, so that the head of the fastener is insulated and isolated from the live components outside the insulating protective structure 10.

[0043] The beneficial effects of this application embodiment are as follows: the first annular wall 111 and the supporting bottom wall 112 can prevent the head of the fastener from being electrically connected to surrounding live devices, and the first receiving groove 114 can completely cover the side of the fastener head, thereby improving the insulation effect between the peripheral side of the fastener and surrounding live devices. This application embodiment can solve the technical problem in the prior art that when the safety distance between metal fasteners and high-voltage devices is insufficient, the electrical clearance and creepage distance required by the corresponding standards can still be met.

[0044] In some embodiments, at least one limiting protrusion 113 is also provided on the support bottom wall 112. The limiting protrusion 113 is used to position the insulating sleeve 11 and also to position the mounting hole 1121, so as to position the fastener for installation, so as to facilitate the fastener to be installed quickly.

[0045] The limiting protrusion 113 is used to connect with corresponding grooves or other structures on other devices to position the insulating sleeve 11. Optionally, the limiting protrusion 113 is integrally formed with the supporting bottom wall 112, resulting in high production efficiency of the insulating sleeve 11.

[0046] The side of the supporting bottom wall 112 away from the first annular wall 111 along the first direction X is used to contact other devices. Optionally, a limiting protrusion 113 is provided on the side of the supporting bottom wall 112 away from the first annular wall 111 along the first direction X, to facilitate the connection of the limiting protrusion 113 with corresponding structures on other devices.

[0047] Optionally, the cross section of the limiting protrusion 113 perpendicular to the first direction X can be a polygon to prevent the limiting protrusion 113 from rotating relative to other devices.

[0048] The beneficial effects of this application embodiment are as follows: the setting of the limiting protrusion 113 can correspond to the structure on other devices, which facilitates the positioning of the installation position of the insulating sleeve 11, so as to position the installation of the fastener, thereby facilitating the quick installation of the fastener.

[0049] In some embodiments, please refer to Figure 1 The insulating sleeve 11 includes at least two limiting protrusions 113, and each limiting protrusion 113 is evenly arranged around the circumference of the mounting hole 1121.

[0050] Two or more limiting protrusions 113 can be provided. Each limiting protrusion 113 is evenly distributed around the circumference of the mounting hole 1121, that is, each limiting protrusion 113 is evenly distributed around the axis of the mounting hole 1121. In this way, each limiting protrusion 113 can fit into the corresponding grooves and other structures on other devices. That is, one limiting protrusion 113 can fit into multiple corresponding grooves. Thus, when the insulating sleeve 11 is placed and fixed, it does not need to be positioned at a specified angle, which makes it more flexible and the operation faster and more convenient.

[0051] For example, please refer to Figure 1 The angle A between the two limiting protrusions 113 and the center line of the mounting hole 1121 is 180°, so that the two limiting protrusions 113 are subjected to opposite forces, keeping the insulating sleeve 11 stable. In addition, the insulating sleeve 11 can be placed at 0 degrees or rotated 180 degrees before placement, which provides greater flexibility.

[0052] The beneficial effects of this application embodiment are as follows: setting two or more spaced limiting protrusions 113 can keep the insulating sleeve 11 stable relative to other devices in the direction perpendicular to the first direction X. After placement, the position is relatively fixed. When the fastener is connected to other devices by threads, quick positioning and installation can be achieved, and the insulating sleeve 11 is also prevented from rotating with the fastener. When the fastener is connected to other devices via threads, the mounting hole 1121 needs to be aligned with the mounting holes of other devices. In this way, the limiting protrusion 113 can position and align the mounting hole 1121, allowing the fastener to be installed quickly. The fastener needs to rotate on the supporting bottom wall 112. The friction between the fastener and the supporting bottom wall 112 causes the supporting bottom wall 112 to tend to rotate. At this time, the limiting protrusion 113 abuts against other devices to prevent the supporting bottom wall 112 from rotating. The limiting protrusion 113 is subjected to the reaction force of other devices. The limiting protrusions 113 are evenly distributed, which can make the force on each limiting protrusion 113 uniform. In addition, multiple limiting protrusions 113 are evenly arranged around the circumference of the mounting hole 1121, so that each limiting protrusion 113 can be adapted to the corresponding grooves and other structures on other devices. That is, one limiting protrusion 113 can be adapted to multiple corresponding grooves. In this way, when the insulating sleeve 11 is placed and fixed, it does not need to be positioned at a specified angle, which makes it more flexible and easier to operate.

[0053] In some embodiments, please refer to Figure 2 and Figure 3 The insulating protective structure 10 also includes an insulating plug 12, which includes a second annular wall 121 and a protective top wall 122. The second annular wall 121 and the protective top wall 122 enclose to form a second receiving groove 123 with an opening. The insulating plug 12 is fixed in the first receiving groove 114, and the second annular wall 121 abuts against the inner side of the first annular wall 111. The protective top wall 122 covers the opening of the first receiving groove 114. The second receiving groove 123 is used to cover the top surface of the fastener.

[0054] The insulating plug 12 is used to impede electrical connections between conductors, increasing creepage distance and clearance. All insulating plugs 12 include insulating material. The insulating plug 12 and the insulating sleeve 11 are two separate parts. Optionally, the insulating plug 12 may include materials such as rubber or silicone, providing good electrical insulation.

[0055] The second annular wall 121 is an annular structure with openings at both ends. The second annular wall 121 extends along the first direction X, and the openings at both ends of the second annular wall 121 are arranged along the first direction X.

[0056] The second annular wall 121 abuts against the inner side of the first annular wall 111. That is, there is friction at the point where the second annular wall 121 abuts against the first annular wall 111. The friction fixes the second annular wall 121 to the inner side of the first annular wall 111. The inner side of the first annular wall 111 is the surface that forms the first receiving groove 114. In other words, the second annular wall 121 of the insulating plug 12 is fixed in the first receiving groove 114.

[0057] The protective top wall 122 covers the opening of the first receiving groove 114, that is, the protective top wall 122 is connected to the end of the second annular wall 121 away from the supporting bottom wall 112 along the first direction X. Optionally, the protective top wall 122 and the second annular wall 121 are integrally formed, resulting in high production efficiency of the insulating plug 12.

[0058] The second receiving groove 123 is used to cover the top surface of the fastener. That is, the opening of the second receiving groove 123 faces the supporting bottom wall 112. In the first direction X, the protective top wall 122 can prevent the head of the fastener in the insulating plug 12 from being electrically connected to the device located on the side of the protective top wall 122 away from the supporting bottom wall 112. The second annular wall 121 can prevent the peripheral side of the head of the fastener in the insulating plug 12 from being electrically connected to the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112.

[0059] The current in the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112 needs to bypass the second annular wall 121 and approach the end of the supporting bottom wall 112 before it can be electrically connected to the head of the fastener in the insulating plug 12; that is, the creepage distance between the head of the fastener and the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112, as well as the electrical clearance and the size of the second annular wall 121 in the first direction X, are positively correlated.

[0060] An insulating space is formed between the second annular wall 121, the protective top wall 122, the first annular wall 111, and the supporting bottom wall 112. In other words, the insulating protective structure 10 can wrap the head of the fastener in the insulating space and prevent the head of the fastener in the insulating space from being electrically connected to the live device outside the insulating space.

[0061] In use, the fastener is passed through the mounting hole 1121 and the head of the fastener is placed into the first receiving groove 114 of the insulating sleeve 11. The fastener is connected to other devices outside the first receiving groove 114, so that the head of the fastener is insulated and isolated from the live devices around the insulating protective structure 10.

[0062] When the head of the fastener needs insulation protection on the side away from the support base wall 112 along the first direction X, the opening of the insulating plug 12 is oriented toward the support base wall 112 and the second annular wall 121 is placed on the periphery of the head of the fastener. The insulating plug 12 is connected in the first receiving groove 114, so that the head of the fastener is insulated from the live components located on the side of the fastener away from the support base wall 112 along the first direction X.

[0063] When the head of the fastener does not require insulation protection on the side away from the support base wall 112 along the first direction X, the insulating plug 12 may not be used.

[0064] The beneficial effect of this application embodiment is that: the insulating plug 12 can prevent the head of the fastener inside the insulating plug 12 from being electrically connected to the device located on the side of the protective top wall 122 away from the supporting bottom wall 112, thereby enhancing the insulation protection effect. In this application embodiment, the insulating sleeve 11 and the insulating plug 12 are set separately. The insulating plug 12 can be used according to specific circumstances. When the head of the fastener along the first direction X away from the supporting bottom wall 112 does not require insulation protection, the insulating plug 12 can be omitted, reducing the steps of disassembling and assembling the insulating plug 12.

[0065] The creepage distance and clearance between the head of the fastener and the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112 are positively correlated with the size of the second annular wall 121 in the first direction X. The insulating sleeve 11 and the insulating plug 12 are set separately so that the second annular wall 121 can be set to a longer size in the first direction X, so that a larger creepage distance and clearance can be set between the head of the fastener and the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112.

[0066] In some embodiments, please refer to Figure 2 and Figure 3 The insulating sleeve 11 and the insulating plug 12 are detachably connected.

[0067] Optionally, the insulating sleeve 11 and the insulating plug 12 can be connected by threads to make the insulating sleeve 11 and the insulating plug 12 stably connected.

[0068] Optionally, the insulating sleeve 11 and the insulating plug 12 can be interference-fitted to facilitate quick and easy installation and removal of the insulating plug 12.

[0069] The beneficial effects of this application embodiment are that the insulating sleeve 11 and the insulating plug 12 are detachably connected, making it convenient to remove the insulating plug 12 from the insulating sleeve 11 and to facilitate the disassembly and assembly of fasteners.

[0070] In some embodiments, please refer to Figure 2 and Figure 3The first annular wall 111 and the second annular wall 121 are interference-fitted, meaning that when the insulating sleeve 11 and the insulating plug 12 are not connected, the dimension of the second annular wall 121 in other directions perpendicular to its length is greater than the dimension of the inner wall surface of the first annular wall 111 in other directions perpendicular to its length. The first annular wall 111 and / or the second annular wall 121 are elastic. When the insulating sleeve 11 and the insulating plug 12 are connected, the inner wall surface of the first annular wall 111 and the outer wall surface of the second annular wall 121 are pressed against each other, and the elastic first annular wall 111 and / or the second annular wall 121 undergo elastic deformation in a direction perpendicular to the first direction X. Optionally, the first annular wall 111 may include silicone material, which has high elasticity and facilitates the installation and removal of the insulating plug 12.

[0071] The beneficial effects of the embodiments of this application are as follows: the first annular wall 111 and the second annular wall 121 are interference-fitted, and the insulating plug 12 and the insulating sleeve 11 can be stably connected together simply by inserting the insulating plug 12 into the annular sleeve, which enables the insulating plug 12 and the insulating sleeve 11 to be quickly connected.

[0072] An embodiment of the second aspect of this application provides a fastening assembly; please refer to... Figures 1 to 4 The fastening assembly 100 includes a fastener 20 and an insulating protective structure 10 of any one of the first aspect embodiments. The fastener 20 includes a head 21 and a mounting portion 22 connected to the head 21. The head 21 is covered in a first receiving groove 114, and the mounting portion 22 extends from the mounting hole 1121 to the outside of the insulating sleeve 11.

[0073] The mounting portion 22 of the fastener 20 is used to connect to other devices outside the mounting hole 1121 and the insulating sleeve 11. The head 21 of the fastener 20 is used to hold the supporting bottom wall 112 against other devices. The head 21 of the fastener 20 is placed in the first receiving groove 114 of the insulating sleeve 11. When the insulating protective structure 10 includes an insulating plug 12, there is a gap between the head 21 and the first annular wall 111 that can accommodate the second annular wall 121. Optionally, the fastener 20 can be a bolt, screw, rivet, etc.

[0074] The head 21 is enclosed within the first receiving groove 114, meaning that the first receiving groove 114 can completely cover the side of the head 21. In the first direction X, the depth of the first receiving groove 114 is greater than or equal to the size of the head 21, and the size of the first annular wall 111 is greater than or equal to the size of the head 21.

[0075] In use, the mounting part 22 of the fastener 20 is passed through the mounting hole 1121 on the insulating sleeve 11, and the head 21 of the fastener 20 is placed in the first receiving groove 114 of the insulating sleeve 11. When the head 21 of the fastener 20 needs insulation protection on the side away from the support bottom wall 112 along the first direction X, the insulating plug 12 is placed on the head 21 of the fastener 20. The insulating plug 12 and the insulating sleeve 11 form an insulating space, and the head 21 of the fastener 20 is located in the insulating space to prevent the head 21 of the fastener 20 from being electrically connected to nearby live devices.

[0076] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application include the insulating protective structure 10 in the first aspect embodiment, the first receiving groove 114 can completely cover the side of the head 21 of the fastener 20, which can improve the insulation effect between the peripheral side of the fastener 20 and the surrounding live devices, and has all the advantages of the insulating protective structure 10 in the first aspect embodiment.

[0077] The second aspect of this application also provides another fastening component, please refer to... Figures 1 to 4 The fastening assembly 100 includes a fastener 20 and an insulating protective structure 10 in the first aspect embodiment. The fastener 20 includes a head 21 and a mounting portion 22. The head 21 is covered in a first receiving groove 114, and the mounting portion 22 extends from the mounting hole 1121 to the outside of the insulating sleeve 11. The second receiving groove 123 covers the side of the head 21.

[0078] The second receiving groove 123 is used to cover the side of the head 21 of the fastener 20, that is, the second receiving groove 123 can completely cover the side of the head 21. In the first direction X, the depth of the second receiving groove 123 is greater than or equal to the size of the head 21, and the size of the second annular wall 121 is greater than or equal to the size of the head 21.

[0079] The beneficial effect of this application embodiment is that: the second annular wall 121 is set to a longer dimension in the first direction X, so that the creepage distance and electrical clearance between the head 21 of the fastener 20 and the live device located on the side of the protective top wall 122 away from the supporting bottom wall 112 are larger, which can improve the insulation protection effect on the head 21.

[0080] The third aspect of this application also provides an electronic device, please refer to... Figures 1 to 5 The electronic device 1000 includes a first electrical component 200, a second electrical component 500, a mounting component 300, a fastener 20, and an insulating protective structure 10 of any one of the first aspect embodiments, wherein the second electrical component 500 is mounted on the first electrical component 200, the fastener 20 extends from the mounting hole 1121 to the outside of the insulating sleeve 11, and mounts the first electrical component 200 on the mounting component 300.

[0081] The fastener 20 includes a head 21 and a mounting portion 22. The head of the fastener 20 is located within the first receiving groove 114, and the mounting portion 22 of the fastener 20 is connected to the mounting member 300. The head 21 of the fastener 20 abuts against the supporting bottom wall 112 against the first electrical component 200, thereby abutting the first electrical component 200 against the mounting member 300. The fastener 20, the insulating sleeve 11, the first electrical component 200, and the insulating plug 12 are relatively fixed. The head 21, the supporting bottom wall 112, the first electrical component 200, and the mounting member 300 are arranged sequentially.

[0082] Optionally, the first electrical component 200 and the mounting component 300 have through holes corresponding to the mounting hole 1121, through which the fastener 20 passes and connects to the first electrical component 200 and the mounting component 300. The insulating protective structure 10 is capable of insulating and isolating the head 21 of the fastener 20 from the first electrical component 200 and the second electrical component 500.

[0083] Optionally, the first electrical component 200 includes a circuit board, etc. Optionally, the second electrical component 500 includes a resistor, a rectifier, etc. Optionally, the mounting component 300 includes a heat sink, a device housing, etc. For example, the electronic device 1000 is a frequency converter, the first electrical component 200 is an aluminum substrate, and the mounting component 300 is a heat sink.

[0084] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application include the insulating protective structure 10 in the first aspect embodiment. The insulating protective structure 10 can insulate and isolate the head 21 of the fastener 20 from the first electrical component 200 and the second electrical component 500. The first receiving groove 114 can completely cover the side of the head 21 of the fastener 20, which can improve the insulation effect between the peripheral side of the fastener 20 and the second electrical component 500.

[0085] The embodiments of the third aspect of this application also provide another electronic device, please refer to Figures 1 to 5 The electronic device 1000 includes a first electrical component 200, a second electrical component 500, a mounting component 300, a fastener 20, and an insulating protective structure 10 as described in the first aspect embodiment. The second electrical component 500 is mounted on the first electrical component 200. The fastener 20 extends from the mounting hole 1121 to the outside of the insulating sleeve 11 and mounts the first electrical component 200 on the mounting component 300. Furthermore, the first electrical component 200 is provided with at least one limiting groove, which is adapted to the limiting protrusion 113.

[0086] The fastener 20 includes a head 21 and a mounting portion 22. The head of the fastener 20 is located in the first receiving groove 114, and the mounting portion 22 of the fastener 20 is connected to the mounting member 300.

[0087] The limiting groove and the limiting protrusion 113 are matched, that is, the number of limiting grooves and the limiting protrusion 113 are the same, and one limiting groove is engaged with one limiting protrusion 113.

[0088] In use, place the limiting protrusion 113 in the corresponding limiting groove, and then use the fastener 20 to connect the insulating sleeve 11 to the first electrical component 200 and the second electrical component 500.

[0089] The beneficial effects of this application embodiment are as follows: the limiting protrusion 113 is set to engage with the limiting groove, which facilitates the positioning of the installation position of the insulating sleeve 11; when the fastener 20 is connected to the mounting part 300 by threads, the relative position of the limiting protrusion 113 and the limiting groove is fixed, which can prevent the insulating sleeve 11 from rotating with the fastener 20.

[0090] The embodiments of the third aspect of this application also provide another electronic device, please refer to Figures 1 to 5 The electronic device 1000 includes a first electrical component 200, a second electrical component 500, a third electrical component 400, a mounting component 300, a fastener 20, and an insulating protective structure 10 as described in the first aspect embodiment. The second electrical component 500 is mounted on the first electrical component 200. The fastener 20 extends from the mounting hole 1121 to the outside of the insulating sleeve 11 and mounts the first electrical component 200 on the mounting component 300. The third electrical component 400 is fixed on the side of the insulating sleeve 11 away from the first electrical component 200.

[0091] The fastener 20 includes a head 21 and a mounting portion 22. The head of the fastener 20 is located in the first receiving groove 114, and the mounting portion 22 of the fastener 20 is connected to the mounting member 300.

[0092] Optionally, the third electrical component 400 includes circuit boards, resistors, etc.

[0093] The third electrical component 400 is fixed to the side of the insulating sleeve 11 away from the first electrical component 200. That is, the head 21 and the insulating protective structure 10 are located between the first electrical component 200 and the third electrical component 400. The insulating protective structure 10 increases the creepage distance and clearance between the head 21 of the fastener 20 and the first electrical component 200, the second electrical component 500, and the third electrical component 400, preventing electrical connection between the head 21 and these components. Specifically, the insulating sleeve 11 increases the creepage distance and clearance between the head 21 and the first electrical component 200 and the second electrical component 500, preventing electrical connection between the head 21 and the first electrical component 200. Similarly, the insulating plug 12 increases the creepage distance and clearance between the head 21 and the third electrical component 400, preventing electrical connection between the head 21 and the third electrical component 400.

[0094] In use, after the fastener 20, insulating sleeve 11, and first electrical component 200 are connected and fixed, the head 21 is encased in the insulating sleeve 11. The creepage distance and clearance between the head 21 and the second electrical component 500 around the insulating sleeve 11 meet the standard safety requirements. Then, the insulating plug 12 is placed over the head 21 of the fastener 20, completely encasing the head 21. The third electrical component 400 is then installed, ensuring that the creepage distance and clearance between the head 21 and the third electrical component 400 meet the standard safety requirements.

[0095] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application include the insulating protective structure 10 in the first aspect embodiment. The insulating protective structure 10 can insulate and isolate the head 21 of the fastener 20 from the first electrical component 200, the second electrical component 500 and the third electrical component 400, and has all the advantages of the insulating protective structure 10 in the first aspect embodiment.

[0096] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An insulating protective structure for fasteners, characterized in that, include: An insulating sleeve includes a first annular wall and a supporting bottom wall, the first annular wall and the supporting bottom wall forming a first receiving groove with an opening, and the supporting bottom wall having a mounting hole; the mounting hole is used for the fastener to pass through the first receiving groove and out of the first receiving groove, and the first receiving groove is used to cover the side of the fastener.

2. The insulating protective structure for fasteners as described in claim 1, characterized in that, The support bottom wall is also provided with at least one limiting protrusion, which is used to position the insulating sleeve.

3. The insulating protective structure for fasteners as described in claim 2, characterized in that, The insulating protective structure includes at least two limiting protrusions, and each limiting protrusion is evenly arranged around the circumference of the mounting hole.

4. The insulating protective structure for fasteners as described in any one of claims 1-3, characterized in that, The insulating protective structure also includes: An insulating plug, the insulating plug comprising a second annular wall and a protective top wall, the second annular wall and the protective top wall enclosing a second receiving groove having an opening; The insulating plug is fixed in the first receiving groove, and the second annular wall abuts against the inner side of the first annular wall. The protective top wall covers the opening of the first receiving groove, and the second receiving groove is used to cover the top surface of the fastener.

5. The insulating protective structure for the fastener as described in claim 4, characterized in that, The first annular wall and the second annular wall are interference-fitted.

6. A fastening assembly, characterized in that, The device includes a fastener and an insulating protective structure according to any one of claims 1-5, wherein the fastener includes a head and a mounting portion, the head being enclosed within the first receiving groove, and the mounting portion extending from the mounting hole to the outside of the insulating sleeve.

7. A fastening assembly, characterized in that, Includes fasteners and the insulating protective structure as described in claim 4 or 5, wherein the fasteners include a head and a mounting portion, the head being enclosed in the first receiving groove, and the mounting portion extending from the mounting hole to the outside of the insulating sleeve; The second receiving groove covers the side of the head.

8. An electronic device, characterized in that, The device includes a first electrical component, a second electrical component, a mounting component, a fastener, and an insulating protective structure according to any one of claims 1-5, wherein the second electrical component is mounted on the first electrical component, the fastener extends from the mounting hole to the outside of the insulating sleeve, and mounts the first electrical component on the mounting component.

9. An electronic device, characterized in that, The device includes a first electrical component, a second electrical component, a mounting component, a fastener, and an insulating protective structure as described in claim 2 or 3, wherein the second electrical component is mounted on the first electrical component, the fastener extends from the mounting hole to the outside of the insulating sleeve, and mounts the first electrical component on the mounting component; and the first electrical component is provided with at least one limiting groove, the limiting groove being adapted to the limiting protrusion.

10. An electronic device, characterized in that, The device includes a first electrical component, a second electrical component, a third electrical component, a mounting component, a fastener, and an insulating protective structure as described in claim 4 or 5, wherein the second electrical component is mounted on the first electrical component, the fastener extends through the mounting hole to the outside of the insulating sleeve and mounts the first electrical component on the mounting component, and the third electrical component is fixed to the side of the insulating sleeve away from the first electrical component.

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