Mounting device

Abstract

The utility model discloses a mounting device which is arranged on a substrate of a circuit board and is used for mounting a heating film. The mounting device comprises a connecting structure and a mounting structure, the connecting structure is mounted on the base plate, the extension line of the axis of a through hole of the connecting structure penetrates through the plate surface of the base plate, and the end face of the through hole and the plate surface of the base plate are arranged at an interval. The installation structure is partially arranged in the through hole, and the heating film is installed at the end, close to the base plate, of the installation structure in the axial direction of the through hole and used for moving towards or away from the plate face of the base plate. By adopting the mounting device provided by the utility model, the moving distance of the mounting structure for driving the heating film to face the substrate can be adjusted according to different thicknesses of the heating film, so that the universality of the mounting device is improved. When the heating film abuts against the plate face of the base plate, the part, deviating from the base plate, of the installation structure abuts against the end face of the side, deviating from the base plate, of the through hole so as to be used for limiting the installation structure to continuously move towards the base plate, and therefore the risk that the heating film is damaged by the installation device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and in particular to an installation device. Background Technology

[0002] With economic development, the application range of electronic devices is becoming increasingly wide. However, the starting temperature of the internal components of electronic devices is generally above -10℃, while when the ambient temperature of the electronic device is below -20℃, it will be difficult for it to start normally. Therefore, it is necessary to install a heating film (electrothermal film) on the internal components of electronic devices to enable them to start normally. Currently, most of the mounting parts used to install heating films are special-purpose parts, which lack a certain degree of universality, and the dimensional accuracy of these special-purpose parts needs to be strictly controlled to reduce the risk of damage to the heating film.

[0003] Therefore, how to improve the versatility of heating film mounting components and reduce the risk of damage to the heating film caused by the mounting components has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This invention provides an installation device that improves the versatility of heating film installation devices while reducing the risk of damage to the heating film caused by the installation device.

[0005] This invention provides a mounting device disposed on the surface of a circuit board substrate and used to mount a heating film. Circuit board components are mounted on the side of the substrate facing away from the mounting device and are positioned opposite the heating film. The mounting device includes a connecting structure and a mounting structure. The connecting structure is used for mounting on the substrate, wherein the connecting structure includes a through hole, the extension line of the axis of the through hole penetrating the surface of the substrate, and the end face of the through hole being spaced apart from the surface of the substrate. A portion of the mounting structure is disposed in the through hole, and along the axial direction of the through hole, the end of the mounting structure near the substrate is used to mount the heating film. Along the axial direction of the through hole, the mounting structure is used to move toward or away from the surface of the substrate. When the heating film abuts against the surface of the substrate, the portion of the mounting structure facing away from the substrate abuts against the end face of the through hole facing away from the substrate.

[0006] The mounting device provided by this invention allows for adjustment of the movement distance of the heating film towards the substrate by the mounting structure, based on the different thicknesses of the heating film, thereby improving the versatility of the mounting device. Furthermore, when the heating film abuts against the substrate surface, the portion of the mounting structure facing away from the substrate abuts against the end face of the through hole facing away from the substrate, thus limiting the continued movement of the mounting structure towards the substrate and reducing the risk of damage to the heating film caused by the mounting device.

[0007] In one possible implementation of this invention, the mounting structure is threadedly connected to the inner wall of the through hole. This simplifies the structure of the mounting device while allowing the mounting structure to move relative to the through hole.

[0008] In one possible implementation of this invention, the mounting structure includes a first body and a limiting portion, with the first body disposed within a through hole. The limiting portion is disposed within the first body, and a portion of the limiting portion extends out of the first body radially. When the heating film abuts against the surface of the substrate, the portion of the limiting portion extending out of the first body abuts against the end face of the through hole on the side opposite to the substrate. This simplifies the mounting structure while satisfying the requirement to limit further movement of the mounting structure toward the substrate.

[0009] In one possible implementation of this invention, one end of the limiting portion is fixed to the end face of the first body away from the substrate along the axial direction of the through hole. This simplifies the installation structure while still meeting the functional requirements of the limiting portion.

[0010] In one possible implementation of this utility model, the limiting part is an elastic cantilever. During the movement of the mounting structure, the free end of the elastic cantilever is lifted, causing it to bend upwards relative to the fixed end. An external force is applied to the free end of the elastic cantilever, causing the entire mounting structure to move towards or away from the substrate. When the fixed end of the elastic cantilever is flush with the upper surface of the through hole, the free end of the elastic cantilever is released, allowing it to abut against the upper surface of the through hole. This improves the ease of operation of the mounting structure.

[0011] In one possible implementation of this invention, the connecting structure further includes a groove, with the groove opening located on the end face of the through hole facing away from the substrate; the groove penetrates the sidewall of the through hole along its radial direction. When the heating film abuts against the substrate surface, the free end of the elastic cantilever is embedded in the groove and abuts against the bottom of the groove. Thus, when the heating film abuts against the substrate surface, the free end of the limiting portion can be directly embedded in the groove to limit the mounting structure along the axial direction of the through hole and along the rotational direction of the mounting structure, thereby effectively improving the connection reliability between the mounting structure and the connecting structure, as well as the contact stability between the heating film and the substrate.

[0012] In one possible implementation of this invention, the connecting structure is provided with multiple grooves distributed circumferentially along the through hole. This allows for the limitation of the free end of the elastic cantilever by selecting grooves at different positions, thereby restricting the movement distance of the mounting structure.

[0013] In one possible implementation of this utility model, the connecting structure further includes a connecting portion and a mounting portion, with a through hole provided in the connecting portion. The mounting portion is used to mount onto the substrate. The connecting portion is used to engage with the mounting portion. Using the mounting device provided by this utility model, since the heating film is connected to the connecting portion through the mounting structure, the ease of installation and disassembly between the mounting structure and the substrate can be effectively improved by engaging the connecting portion with the mounting portion.

[0014] In one possible implementation of this utility model, the connecting structure includes two mounting portions, spaced apart along the radial direction of the through hole; the through hole is located between the two mounting portions. The connecting portion includes a second body, a bending structure, and an elastic arm, with the through hole located in the second body. The distance between the two mounting portions along the radial direction of the through hole is greater than the distance between the bending structure and the elastic arm. The fixed end of the bending structure is located in the second body, and the open end of the bending structure is inserted into one mounting portion. The fixed end of the elastic arm is located in the second body, and the free end of the elastic arm is engaged with the other mounting portion. This design improves the ease of installation and disassembly of the connecting portion and the mounting portion, while also simplifying the structure of the mounting device.

[0015] In one possible implementation of this invention, the mounting portion is spaced apart from the substrate surface along the axial direction of the through hole; the free end of the elastic arm and the open end of the bending structure are located one-to-one in the gap between the mounting portion and the substrate surface. This simplifies the structure of the mounting device while meeting the connection requirements between the mounting portion and the connecting portion.

[0016] In one possible implementation of this utility model, the connecting structure includes two mounting portions, spaced apart along the radial direction of the through hole. The through hole is located between the two mounting portions. The connecting portion includes a second body and two elastic arms, with the through hole located in the second body. One end of each elastic arm is located in the second body, and the free ends of the two elastic arms are engaged with the two mounting portions in a one-to-one manner. This facilitates the installation and disassembly of the connecting portion and the mounting portion, while also simplifying the structure of the mounting device. Attached Figure Description

[0017] Figure 1 A schematic diagram of the installation device provided by this utility model;

[0018] Figure 2 for Figure 1 Front view of the provided installation device;

[0019] Figure 3 for Figure 1 A partial view of the provided mounting device;

[0020] Figure 4 for Figure 1 A cross-sectional view of the provided installation device;

[0021] Figure 5 A schematic diagram of the installation structure of the installation device provided for the utility model;

[0022] Figure 6 A schematic diagram of the connection portion of the mounting device provided for the utility model;

[0023] Figure 7 A schematic diagram of the mounting section of the mounting device provided for the utility model.

[0024] Reference numerals: 01-substrate; 02-heating film; 03-component; 1-connection structure; 11-through hole; 12-groove; 13-connection part; 131-second body; 132-bending structure; 133-elastic arm; 14-mounting part; 141-opening; 2-mounting structure; 21-first body; 22-limiting part. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The terms expressing position and direction described in the embodiments of this utility model are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the protection scope of this utility model. The accompanying drawings of the embodiments of this utility model are only for illustrating relative positional relationships and do not represent actual proportions.

[0026] It should be noted that specific details are set forth in the following description to facilitate understanding of this utility model. However, this utility model can be implemented in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] With economic development, the application range of electronic devices is becoming increasingly wide. However, the starting temperature of the internal electrical components of electronic devices is generally above -10℃. When the ambient temperature of the electronic device is below -20℃, it will be difficult for it to start normally. Therefore, it is necessary to install a heating film (electrothermal film) on the internal electrical components of electronic devices to enable them to start normally. Currently, most of the mounting parts used to install heating films are specialized parts, which lack a certain degree of versatility, and the dimensional accuracy of these specialized parts needs to be strictly controlled to reduce the risk of damaging the heating film.

[0028] In view of this, the installation device provided by this utility model, by setting the heating film on the installation structure and moving the installation structure toward or away from the component, allows the installation structure to be moved different distances according to different sizes of the heating film. When the moving distance of the installation structure meets the size requirements of the heating film, the installation structure is fixed. This improves the versatility of the heating film installation device while reducing the risk of damage to the heating film caused by the installation device. To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0029] It should be noted that the internal components of an electronic device can be, for example, chips.

[0030] A heating film is a device that converts electrical energy into heat energy, typically composed of conductive polymer materials, metal current-carrying strips, and an insulating film. When electricity is applied, these materials generate heat, thus achieving a heating effect. For example, a polyimide electric heating film uses a polyimide film as the outer insulator and a metal foil or wire as the inner conductive heating element, formed by high-temperature and high-pressure heat sealing.

[0031] refer to Figure 1 , Figure 1 This is a schematic diagram of the mounting device provided by this utility model. The mounting device is disposed on the surface of the substrate 01 of the circuit board. Figure 2 As shown, Figure 2 For display Figure 1 The provided mounting device is shown in the front view when it is installed on the circuit board. The mounting device is used to install the heating film 02.

[0032] Component 03 of the circuit board is mounted on the surface of the circuit board substrate 01. During the operation of the electronic device, component 03 will generate a large amount of heat. Therefore, a heat dissipation device needs to be installed on the surface of component 03 facing away from the substrate 01 to improve the operational stability of the electronic device. The substrate 01 is located between the heating film 02 and component 03.

[0033] In the installation device provided by this utility model, such as Figure 1 As shown, the mounting device includes a connecting structure 1 and a mounting structure 2, with the connecting structure 1 mounted on the substrate 01. Figure 3 As shown, Figure 3 For display Figure 1 A partial schematic diagram of the provided mounting device shows that the connection structure 1 includes a through hole 11, and the extension line of the axis of the through hole 11 passes through the surface of the substrate 01. At the same time, the end face of the through hole 11 is spaced apart from the surface of the substrate 01.

[0034] When specifically setting up installation structure 2, such as Figure 4 As shown, Figure 4 For display Figure 1The provided cross-sectional view of the mounting device shows that part of the mounting structure 2 is disposed within the through hole 11, along the axial direction of the through hole 11 (e.g., Figure 4 (As shown in the Z-axis direction), the end of the mounting structure 2 near the substrate 01 is used to mount the heating film 02. And along the axial direction of the through hole 11, the mounting structure 2 can drive the heating film 02 to move toward or away from the surface of the substrate 01.

[0035] It should be noted that this utility model does not limit the specific structure of the installation structure 2, and all aspects are referred to herein. Figure 4 and Figure 5 , Figure 5 A schematic diagram illustrating the installation structure 2. For example, the installation structure 2 includes a first body 21 disposed within a through hole 11. The first body 21 can be a cylindrical structure, with external threads on the outer wall of the cylindrical structure and internal threads on the inner wall of the through hole 11. The cylindrical structure is threadedly connected to the through hole 11. This simplifies the structure of the installation device while allowing the installation structure 2 to move relative to the through hole 11.

[0036] The mounting device provided by this invention allows for adjustment of the movement distance of the heating film 02 towards the substrate 01 by the mounting structure 2, based on the different thicknesses of the heating film 02, thereby improving the versatility of the mounting device. Furthermore, when the heating film 02 abuts against the surface of the substrate 01, the portion of the mounting structure 2 facing away from the substrate 01 abuts against the end face of the through hole 11 on the side facing away from the substrate 01, thus limiting the continued movement of the mounting structure 2 towards the substrate 01 and reducing the risk of damage to the heating film 02 caused by the mounting device.

[0037] It should be noted that the heating film 02 is electrically connected to the power source to convert electrical energy into heat energy.

[0038] In addition, since the installation device provided by this utility model moves the heating film 02 by the installation structure 2 to achieve contact between the heating film 02 and the substrate 01, the heating film 02 can be reliably installed without the installation structure 2 having high precision, which helps to reduce the processing difficulty of the installation device.

[0039] In one specific implementation, such as Figure 5 As shown, the mounting structure 2 also includes a limiting part 22, which is disposed on the first body 21 of the mounting structure 2, and a portion of the limiting part 22 extends out of the first body 21 along the radial direction of the first body 21.

[0040] It should be noted that the shape of the limiting part 22 is not limited in this utility model. For example, the limiting part 22 can be a long strip structure, and one end of the long strip structure is fixed to the first body 21. For example, along the axial direction of the through hole 11, it can be fixed to the end face of the first body 21 away from the substrate 01, so as to simplify the installation structure 2 while meeting the functional requirements of the limiting part 22.

[0041] Using the installation device provided by this utility model, such as Figure 1 As shown, when the heating film 02 abuts against the surface of the substrate 01, the portion of the limiting part 22 extending out of the first body 21 can abut against the end face of the through hole 11 on the side away from the substrate 01. This simplifies the mounting structure 2 while satisfying the requirement to restrict the mounting structure 2 from continuing to move toward the substrate 01.

[0042] In one alternative embodiment, the limiting part 22 can be a flexible cantilever. This allows for movement of the mounting structure 2 during the installation process, such as... Figure 4 As shown, along the positive Z-axis direction, the free end of the elastic cantilever is lifted, causing the free end of the elastic cantilever to bend relative to the fixed end toward the positive Z-axis. By applying an external force to the free end of the elastic cantilever, the entire mounting structure 2 is moved toward or away from the substrate 01. When the fixed end of the elastic cantilever is flush with the upper surface of the through hole 11, the free end of the elastic cantilever is released so that the free end of the elastic cantilever abuts against the upper surface of the through hole 11. This improves the ease of operation of the mounting structure 2.

[0043] In addition, the fixed end of the elastic cantilever can be connected to the first body 21 by riveting or welding, and the first body 21 can be a metal part or a plastic part.

[0044] In one specific implementation, such as Figure 3 As shown, the connecting structure 1 also includes a groove 12, and the opening of the groove 12 is located on the end face of the through hole 11 away from the substrate 01, that is, the direction of the bottom of the groove 12 is along the axial direction of the through hole 11. In addition, the groove 12 penetrates the sidewall of the through hole 11 radially. For example, when the shape of the groove 12 is a cuboid, the cuboid has only three sidewalls and one bottom wall. Specifically, the bottom wall is rectangular, and the three sides of the rectangle extend along the axial direction of the through hole 11 to form three sidewalls. The two oppositely arranged sidewalls intersect with the sidewall of the through hole 11.

[0045] Using the mounting device provided by this utility model, since the groove 12 penetrates the sidewall of the through hole 11 along the radial direction of the through hole 11, when the heating film 02 abuts against the surface of the substrate 01, the free end of the limiting part 22 (the free end of the elastic cantilever) can be directly embedded into the groove 12 and abut against the bottom of the groove 12. This is used to limit the mounting structure 2 along the axial direction of the through hole 11 and along the rotation direction of the mounting structure 2, thereby effectively improving the connection reliability between the mounting structure 2 and the connecting structure 1, and improving the contact stability between the heating film 02 and the substrate 01.

[0046] Additionally, it is understood that since the groove 12 penetrates the sidewall of the through hole 11 along the radial direction of the through hole 11, when the heating film 02 abuts against the substrate 01, the free end of the elastic cantilever can be directly embedded into the groove 12 through the opening on the side of the groove 12 and abut against the bottom of the groove 12.

[0047] It is worth mentioning that the number of grooves 12 can be set according to actual needs. For example, along the axial direction of the through hole 11, the connecting structure 1 may include multiple grooves 12, and the multiple grooves 12 are distributed circumferentially along the through hole 11. In this way, by selecting grooves 12 at different positions, the free end of the elastic cantilever can be limited, thereby limiting the movement distance of the mounting structure 2 relative to the substrate 01. It is understood that the user can move the mounting structure 2 by different distances according to the different thicknesses of the heating film 02, so as to meet the contact effectiveness of heating films 02 of different specifications and substrate 01.

[0048] Furthermore, since the mounting structure 2 achieves axial movement through a helical feed, the rotation angle of the elastic cantilever will vary depending on the movement distance of the mounting structure 2. Therefore, by providing multiple grooves 12 along the axial direction of the through hole 11, the requirement for the free end of the elastic cantilever to be embedded in the groove 12 can be met at different rotation angles of the elastic cantilever.

[0049] It should be noted that this utility model does not limit the spacing between adjacent grooves 12. The smaller the spacing between adjacent grooves 12, the lower the risk of the installation device damaging the heating film 02.

[0050] In a specific embodiment, such as Figure 3As shown, the connecting structure 1 includes a connecting portion 13 and a mounting portion 14. A through hole 11 is provided in the connecting portion 13, meaning the mounting structure 2 can move the heating film 02 relative to the connecting portion 13. The mounting portion 14 is used to mount the substrate 01, and can be fixedly connected to the substrate 01 by welding, bonding, or fasteners. The connecting portion 13 is used to engage with the mounting portion 14. Using the mounting device provided by this invention, since the heating film 02 is connected to the connecting portion 13 through the mounting structure 2, engaging the connecting portion 13 with the mounting portion 14 effectively improves the ease of installation and disassembly between the mounting structure 2 and the substrate 01.

[0051] In addition, the mounting part 14 can be provided outside the projection of the through hole 11 onto the substrate 01 to avoid interference between the mounting structure 2 and the mounting part 14.

[0052] It should be noted that the present invention does not limit the number of mounting parts 14. For example, the connection structure 1 may include two mounting parts 14, and the two mounting parts 14 are arranged at intervals along the radial direction of the through hole 11, while the through hole 11 is located between the two mounting parts 14.

[0053] When the connecting structure 1 is provided with the two mounting portions 14 described above, in an optional embodiment, when specifically configuring the connecting portion 13, as follows: Figure 6 As shown, Figure 6 For display Figure 3 The connecting portion 13 includes a second body 131, a bending structure 132, and an elastic arm 133. A through hole 11 is provided in the second body 131. The second body 131 can be, for example, a rectangular plate structure. The through hole 11 is along the thickness direction of the rectangular plate structure (e.g., ...). Figure 6 (The Z-axis direction is shown). Alternatively, a thinner rectangular plate structure can be selected, and an annular protrusion facing the substrate 01 can be provided on the plate surface of the plate structure. The annular protrusion is used to form a through hole 11, which helps to reduce the material cost of the second body 131 and improve the structural strength of the second body 131.

[0054] When setting the relative positions of the bending structure 132, the elastic arm 133, and the second body 131, the bending structure 132 and the elastic arm 133 are spaced apart along the radial direction of the through hole 11, for example, along the Y-axis. The fixed end of the bending structure 132 is located in the second body 131, and the open end of the bending structure 132 is inserted into one of the mounting portions 14. The fixed end of the elastic arm 133 is located in the second body 131, and the free end of the elastic arm 133 is engaged with the other mounting portion 14.

[0055] In addition, such as Figure 4As shown, along the radial direction of the through hole 11, the distance between the two mounting portions 14 is greater than the distance between the bent structure 132 and the elastic arm 133.

[0056] It should be noted that the present invention does not limit the structural form of the connecting part 13; it can be an integral structure or a separate structure.

[0057] When using the installation device provided by this utility model, during the process of installing the connecting part 13 into the mounting part 14, the open end of the bent structure 132 can be inserted into the corresponding mounting part 14 first, and then the side of the second body 131 with the elastic arm 133 can be pressed down to allow the free end of the elastic arm 133 to slide down into the corresponding mounting part 14, thereby achieving the engagement of the elastic arm 133 and the mounting part 14. When it is necessary to disassemble the connecting part 13, simply press the free end of the elastic arm 133 towards the side of the bent structure 132 to disengage the free end of the elastic arm 133 from the corresponding mounting part 14, thereby effectively improving the convenience of installing and disassembling the connecting part 13 and the mounting part 14, and making the structure of the installation device simpler.

[0058] When specifically setting the bending structure 132 of the connecting part 13, such as Figure 4 As shown, the bending structure 132 can be L-shaped, with the long side of the L-shape being a fixed end that is fixedly connected to the second body 131, and the short side of the L-shape being an open end that is used to be inserted into the mounting part 14.

[0059] When specifically setting up the installation unit 14, please refer to the following: Figure 3 and Figure 7 , Figure 7 For display Figure 3 The mounting portion 14 of the provided mounting device is arranged along the axial direction of the through hole 11, with a portion of the mounting portion 14 spaced apart from the surface of the substrate 01; the free end of the elastic arm 133 and the open end of the bending structure 132 are located one-to-one in the gap between the mounting portion 14 and the surface of the substrate 01. This simplifies the structure of the mounting device while meeting the connection requirements between the mounting portion 14 and the connecting portion 13.

[0060] It should be noted that the present invention does not limit the specific structure of the mounting part 14. The mounting part 14 can be a rectangular plate, and the rectangular plate is provided with an opening 141. The free end of the elastic arm 133 and the open end of the bending structure 132 are both used to be set in the corresponding opening 141.

[0061] Additionally, the free end of the elastic arm 133 is provided with a hook for engaging with the aforementioned opening 141. For example... Figure 6As shown, along the X-axis direction, two elastic arms 133 can be provided at intervals. At the same time, two openings 141 on the mounting part 14 corresponding to the two elastic arms 133 can also be provided, and they correspond one-to-one with the elastic arms 133, so as to further improve the connection reliability between the connecting part 13 and the mounting part 14.

[0062] It is worth mentioning that, in an alternative embodiment, when the connecting structure 1 includes the two mounting portions 14 described above, the connecting portion 13 may also be a structure including a second body 131 and two elastic arms 133, and a through hole 11 is provided in the second body 131.

[0063] When setting the relative positions of the two elastic arms 133 and the second body 131, the two elastic arms 133 are spaced apart along the radial direction of the through hole 11, and one end of each of the two elastic arms 133 is set on the second body 131. At the same time, the free ends of the two elastic arms 133 are engaged with the two mounting parts 14 one by one.

[0064] When using the installation device provided by this utility model, during the process of installing the connecting part 13 onto the mounting part 14, simply pressing down on the second body 131 allows the free end of the elastic arm 133 to slide downwards into the corresponding mounting part 14, thereby achieving the engagement between the elastic arm 133 and the mounting part 14. When it is necessary to disassemble the connecting part 13, simply pressing down on the free end of the elastic arm 133 in the axial direction of the through hole 11 allows the free end of the elastic arm 133 to disengage from the corresponding mounting part 14, thus effectively improving the convenience of installing and disassembling the connecting part 13 and the mounting part 14, while also making the structure of the installation device simpler.

[0065] In summary, the mounting device provided by this utility model can adjust the movement distance of the heating film 02 towards the substrate 01 driven by the mounting structure 2 according to the different thicknesses of the heating film 02, thereby improving the versatility of the mounting device. Furthermore, when the heating film 02 abuts against the surface of the substrate 01, the portion of the mounting structure 2 facing away from the substrate 01 abuts against the end face of the through hole 11 on the side facing away from the substrate 01, thus limiting the continued movement of the mounting structure 2 towards the substrate 01 and reducing the risk of damage to the heating film 02 caused by the mounting device.

[0066] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A mounting device disposed on the surface of a substrate of a circuit board and used for mounting a heating film, wherein components of the circuit board are mounted on the surface of the substrate opposite to the mounting device and disposed opposite to the heating film, characterized in that, The mounting device includes a connecting structure and a mounting structure, wherein the connecting structure is used for mounting on the substrate, wherein: The connection structure includes a through hole, the extension line of the axis of the through hole is used to penetrate the surface of the substrate, and the end face of the through hole is spaced apart from the surface of the substrate. A portion of the mounting structure is disposed in the through hole, and along the axial direction of the through hole, the end of the mounting structure near the substrate is used to mount the heating film; Along the axial direction of the through hole, the mounting structure is used to move toward or away from the surface of the substrate; When the heating film abuts against the surface of the substrate, the portion of the mounting structure facing away from the substrate abuts against the end face of the through hole on the side facing away from the substrate.

2. The installation device according to claim 1, characterized in that, The mounting structure is threadedly connected to the inner wall of the through hole.

3. The installation device according to claim 2, characterized in that, The mounting structure includes a first body and a limiting part. The first body is disposed in the through hole. The limiting part is disposed in the first body and extends out of the first body along the radial direction of the first body. When the heating film abuts against the surface of the substrate, the portion of the limiting part extending out of the first body abuts against the end face of the through hole on the side opposite to the substrate.

4. The installation device according to claim 3, characterized in that, Along the axial direction of the through hole, one end of the limiting portion is fixed to the end face of the first body away from the substrate.

5. The installation device according to claim 3, characterized in that, The limiting part is an elastic cantilever.

6. The installation device according to claim 5, characterized in that, The connection structure further includes a groove, and the groove opening is located on the end face of the through hole on the side away from the substrate; the groove penetrates the sidewall of the through hole along the radial direction of the through hole. When the heating film abuts against the surface of the substrate, the free end of the elastic cantilever is embedded in the groove and abuts against the bottom of the groove.

7. The installation device according to claim 6, characterized in that, The connecting structure is provided with a plurality of grooves, which are distributed circumferentially along the through hole.

8. The installation device according to any one of claims 1-7, characterized in that, The connection structure further includes a connection part and a mounting part, and the through hole is provided in the connection part; The mounting portion is used to mount onto the substrate; the connecting portion is used to engage with the mounting portion.

9. The installation device according to claim 8, characterized in that, The connection structure includes two mounting portions, which are spaced apart along the radial direction of the through hole; the through hole is located between the two mounting portions. The connecting part includes a second body, a bending structure, and an elastic arm, and the through hole is provided in the second body; along the radial direction of the through hole, the distance between the two mounting parts is greater than the distance between the bending structure and the elastic arm; The fixed end of the bending structure is disposed on the second body, and the open end of the bending structure is inserted into one of the mounting parts; The fixed end of the elastic arm is disposed on the second body, and the free end of the elastic arm is engaged with another mounting part.

10. The installation device according to claim 9, characterized in that, Along the axial direction of the through hole, a portion of the mounting part is spaced apart from the surface of the substrate; the free end of the elastic arm and the open end of the bending structure are located one-to-one in the gap between the mounting part and the surface of the substrate.

11. The installation device according to claim 8, characterized in that, The connection structure includes two mounting portions, which are spaced apart along the radial direction of the through hole; the through hole is located between the two mounting portions. The connecting part includes a second body and two elastic arms. The through hole is provided in the second body. One end of each elastic arm is provided in the second body, and the free ends of the two elastic arms are engaged with the two mounting parts one by one.

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