Shielding cover structure and use method thereof

Abstract

The invention relates to the related technical field of shielding cases, in particular to a shielding case structure and a use method thereof.The shielding case structure comprises a shielding case body and an auxiliary disassembly structure, and the shielding case body is welded to a main board and is of a rectangular shell structure; the auxiliary dismounting structure is formed by combining the longitudinal auxiliary dismounting part and the transverse auxiliary dismounting part, the longitudinal auxiliary dismounting part is formed by combining the longitudinal support and the longitudinal heating expansion body, and the transverse auxiliary dismounting part is formed by the transverse support and the transverse heating expansion body. Therefore, when the shielding case main body is disassembled through the heating blower gun, the shielding case main body can be automatically separated from the mainboard through heating expansion of the longitudinal heating expansion body and the transverse heating expansion body, so that the inconvenience that maintenance personnel need to hold the heating blower gun for heating with one hand and need to pick up the shielding case main body with tweezers with the other hand is avoided; and the hidden danger that the shielding case main body is deformed due to overlarge stress in the prying process can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field related to shielding covers, and in particular to a shielding cover structure and a use method thereof. Background Art

[0002] The shielding cover is a tool used to shield electronic signals. Its function is to shield the influence of external electromagnetic waves on the internal circuit and the electromagnetic waves generated inside from radiating outward.

[0003] The existing Chinese patent document with announcement number CN105555113B discloses a shielding cover structure, which includes a shielding cover frame and an FPC, wherein the FPC is bonded to the shielding cover frame through a conductive adhesive layer. By using the FPC as a shielding cover, the metal wiring inside the FPC can achieve a shielding effect, and the insulating layer thereof can achieve an insulating effect, which can greatly reduce the weight of the shielding cover, and the FPC is small in size and will not compress the space of other components; the FPC and the shielding cover frame are bonded through a conductive adhesive layer, and the manufacturing process is simple, which reduces the requirements for manufacturing equipment and saves manufacturing costs; at the same time, the FPC is a flexible material, which can achieve shielding of spatial curved products, and can effectively dissipate heat, reduce the temperature of the whole machine, and provide a good environment for the operation of the whole machine;

[0004] However, the shielding cover in the above scheme can only be connected by welding like the traditional shielding cover, and the welding connection will be very difficult to disassemble later, so that when repairing the electrical components, the maintenance personnel need to use a heating air gun in one hand to melt the soldering points, and then use tweezers in the other hand to pry up the shielding cover. This process is more challenging for the maintenance personnel's skills. If the lifting force is too small, the shielding cover with melted soldering points will not be separated in time and will be re-bonded. Excessive force will easily cause the shielding cover to deform, thereby causing the shielding cover to be deformed and scrapped. For this reason, the present invention proposes a shielding cover structure and a method of using the same to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a shielding cover structure and a method of using the same to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a shielding cover structure, comprising:

[0007] A shielding cover body, which is welded on the main board, is a rectangular shell structure, and a mounting groove is provided at the lower port of the shielding cover body, and is a rectangular frame structure;

[0008] An auxiliary disassembly structure, the auxiliary disassembly structure is installed in the installation groove, the auxiliary disassembly structure is composed of a longitudinal auxiliary disassembly member and a transverse auxiliary disassembly member, and the longitudinal auxiliary disassembly member and the transverse auxiliary disassembly member are symmetrically arranged in a group, and the longitudinal auxiliary disassembly member and the transverse auxiliary disassembly member are enclosed to form a rectangular frame structure;

[0009] The longitudinal auxiliary disassembly member is composed of a longitudinal support and a longitudinal heat expansion body;

[0010] The transverse auxiliary disassembly member is composed of a transverse support and a transverse heat expansion body.

[0011] Preferably, the longitudinal bracket and the transverse bracket are combined to form a rectangular frame structure, the longitudinal heat expansion body is installed on the longitudinal bracket, and the transverse heat expansion body is installed on the transverse bracket. When the shielding cover body is heated and disassembled by a heating air gun, the longitudinal heat expansion body and the transverse heat expansion body are heated and expanded, and the expansion temperatures of the longitudinal heat expansion body and the transverse heat expansion body are lower than the melting temperature of the solder joint.

[0012] Preferably, the longitudinal bracket is composed of a combination of a heat-conducting column and a heat-conducting rod, the heat-conducting column and the heat-conducting rod are arranged in an alternating manner, and the heat-conducting column and the heat-conducting rod are integrally formed, the longitudinal heat-absorbing expansion body is a tubular structure, and the longitudinal heat-absorbing expansion body is cast from high-temperature resistant silicone rubber, the two ends of the longitudinal heat-absorbing expansion body are respectively fixedly connected to the heat-conducting columns on both sides, the heat-conducting rod is arranged in the inner cavity of the longitudinal heat-absorbing expansion body, and the inner cavity of the longitudinal heat-absorbing expansion body is filled with water, and the volume of the water filled in the longitudinal heat-absorbing expansion body is one tenth of the volume of the inner cavity of the longitudinal heat-absorbing expansion body, the cross-section of the mounting groove is U-shaped, the side wall of the heat-conducting column is fitted with the bottom of the mounting groove, the structure of the transverse bracket is the same as that of the longitudinal bracket, and the installation method of the transverse heat-absorbing expansion body is the same as the installation method of the longitudinal heat-absorbing expansion body.

[0013] Preferably, a connecting groove is provided at the end of the heat-conducting column, and the two ends of the longitudinal heat-expanding body are respectively mounted on the connecting grooves of the heat-conducting columns at both ends, and the longitudinal heat-expanding body and the connecting groove are fixedly glued, and the glue used for bonding the longitudinal heat-expanding body is high-temperature resistant inorganic glue.

[0014] Preferably, a heat dissipation column is integrally formed on the side wall of the heat conducting rod, and a plurality of heat dissipation columns are evenly arranged around the heat conducting rod, and the ends of the heat dissipation columns are arranged in a hemispherical shape.

[0015] Preferably, a heat-conducting protrusion is integrally formed on the side wall of the heat dissipation column, the heat-conducting protrusion is a hemispherical protrusion structure, and multiple groups of heat-conducting protrusions are evenly arranged around the heat dissipation column, and the heat dissipation column and the heat-conducting protrusions are both cast from heat-conducting metal.

[0016] Preferably, an air avoidance groove is opened on the side wall of the installation groove, and an elastic plate is integrally formed at the bottom of the air avoidance groove, and the elastic plate is arranged corresponding to the heat-conducting column, and a positioning protrusion is integrally formed on the outer side surface of the elastic plate, and both ends of the positioning protrusion are arranged with arc-mounted slope surfaces, and when the auxiliary disassembly structure is actually installed, the arc-mounted slope surface of the upper side end of the positioning protrusion is arranged in contact with the side wall of the heat-conducting column, and the lower side end of the heat-conducting column is flush with the port of the installation groove.

[0017] Preferably, a snap-fit ​​groove is formed at the end of the transverse bracket, and a snap-fit ​​protrusion is integrally formed at the end of the longitudinal bracket. When the longitudinal bracket and the transverse bracket are actually docked, the snap-fit ​​protrusion is embedded in the snap-fit ​​groove.

[0018] Preferably, a spherical groove is provided at the root of the engaging groove, a positioning ball is integrally formed at the end of the engaging protrusion, an open groove is penetrated through the engaging protrusion and the positioning ball, the engaging protrusion is cast from spring steel, the positioning ball is matched with the spherical groove, and the diameter of the positioning ball is greater than the width of the engaging groove, and when the longitudinal bracket and the transverse bracket are actually docked, the positioning ball is embedded into the spherical groove along the engaging groove.

[0019] A method for using a shielding cover structure, the method for using the shielding cover structure is used to disassemble and assemble the above-mentioned shielding cover structure. The method of use is that when the shielding cover body needs to be disassembled, the maintenance personnel use a handheld heating air gun to blow and heat the solder joints of the shielding cover body. At this time, the shielding cover body is heated and conducts heat to the heat-conducting columns and the heat-conducting rods, so that the water in the inner cavity of the longitudinal heat-expanding body is heated and evaporates, thereby causing the heat-expanding body to expand. When the solder joints between the shielding cover body and the mainboard melt, the shielding cover body will be propped up under the action of the heat-expanding body, thereby avoiding the soldering flux between the shielding cover body and the mainboard from re-solidifying and causing the shielding cover body and the mainboard to be re-bonded together. After the water vapor in the heat-expanding body is liquefied, the soldering flux between the shielding cover body and the mainboard has solidified. When the shielding cover body needs to be welded on the mainboard, the shielding cover body is first positioned on the mainboard by pressurizing the positioning tool, and then adding soldering flux at the contact position between the shielding cover body and the mainboard, and then the welding step is performed by a handheld heating air gun.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By providing a shielding cover structure composed of a shielding cover body and an auxiliary disassembly structure, and by providing the auxiliary disassembly structure to be composed of a longitudinal auxiliary disassembly piece and a transverse auxiliary disassembly piece, and providing the longitudinal auxiliary disassembly piece to be composed of a longitudinal bracket and a longitudinal heat expansion body, and providing the transverse auxiliary disassembly piece to be composed of a transverse bracket and a transverse heat expansion body, when the shielding cover body is disassembled by a heating air gun, the longitudinal heat expansion body and the transverse heat expansion body can be thermally expanded, so that the shielding cover body can be automatically separated from the mainboard, thereby avoiding the inconvenience of maintenance personnel having to use a heating air gun to heat with one hand and tweezers to pry up the shielding cover body with the other hand, and effectively avoiding the hidden danger of deformation of the shielding cover body due to excessive force during the prying process;

[0022] 2. The longitudinal bracket is configured to be composed of a heat-conducting column and a heat-conducting rod, and the longitudinal heat-expanding body and the transverse heat-expanding body are cast into a tube structure with silicone rubber, and a small amount of water is injected into the longitudinal heat-expanding body and the transverse heat-expanding body, so that when the maintenance personnel use a heating air gun to heat the solder joints of the shielding cover body, the heat can be transferred to the inside of the longitudinal heat-expanding body and the transverse heat-expanding body through the heat-conducting column and the heat-conducting rod, so that the water can evaporate to allow the longitudinal heat-expanding body and the transverse heat-expanding body to expand better, and when the heating is stopped, the longitudinal heat-expanding body and the transverse heat-expanding body can be prevented from resetting too quickly, thereby preventing the solder flux between the shielding cover body and the mainboard from re-solidifying and causing re-bonding between the shielding cover body and the mainboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a half-section view of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 4 for Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the structure at C in the middle;

[0028] Figure 6 This is a schematic diagram of the auxiliary disassembly structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the longitudinal auxiliary disassembly member of the present invention;

[0030] Figure 8This is a schematic diagram of the structure of the lateral auxiliary disassembly member of the present invention;

[0031] Fig. 9 for Figure 8 A magnified schematic diagram of the structure at D in the middle;

[0032] Fig.10 A half-section view of the longitudinal auxiliary disassembly member of the present invention;

[0033] Fig.11 for Fig.10 The enlarged schematic diagram of the structure at E in the middle;

[0034] Fig.12 for Fig.11 A magnified schematic diagram of the structure at F in the middle;

[0035] Fig.13 This is a schematic diagram of the longitudinal support structure of the present invention;

[0036] Fig.14 for Fig.13 Enlarged schematic diagram of the structure at G in the middle.

[0037] In the figure: shielding cover body 1, auxiliary disassembly structure 2, main board 3, mounting groove 4, longitudinal auxiliary disassembly part 5, transverse auxiliary disassembly part 6, longitudinal bracket 7, longitudinal heat expansion body 8, transverse bracket 9, transverse heat expansion body 10, heat conducting column 11, heat conducting rod 12, connecting groove 13, heat dissipating column 14, heat conducting protrusion 15, air avoidance groove 16, elastic plate 17, positioning protrusion 18, engaging groove 19, engaging protrusion 20, spherical groove 21, positioning ball 22, opening groove 23. DETAILED DESCRIPTION

[0038] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 14 , the present invention provides the following four preferred embodiments:

[0040] Embodiment 1, a shielding cover structure, including a shielding cover main body and an auxiliary disassembly structure, the shielding cover main body is welded on the main board, the shielding cover main body is a rectangular shell structure, and a mounting groove is opened at the lower side port of the shielding cover main body, the mounting groove is a rectangular frame structure, the auxiliary disassembly structure is installed in the mounting groove, the auxiliary disassembly structure is composed of a combination of longitudinal auxiliary disassembly parts and transverse auxiliary disassembly parts, and the longitudinal auxiliary disassembly parts and the transverse auxiliary disassembly parts are symmetrically arranged in a group, and the longitudinal auxiliary disassembly parts and the transverse auxiliary disassembly parts are enclosed to form a rectangular frame structure, the longitudinal auxiliary disassembly parts are composed of a combination of a longitudinal bracket and a longitudinal heat expansion body, and the transverse auxiliary disassembly parts are composed of a combination of a transverse bracket and a transverse heat expansion body.

[0041] The longitudinal bracket and the transverse bracket are combined to form a rectangular frame structure, the longitudinal heat expansion body is installed on the longitudinal bracket, and the transverse heat expansion body is installed on the transverse bracket. When the shielding cover body is heated and disassembled by a heating gun, the longitudinal heat expansion body and the transverse heat expansion body are heated and expanded, and the expansion temperatures of the longitudinal heat expansion body and the transverse heat expansion body are lower than the melting temperature of the solder joint. By setting a shielding cover structure composed of a shielding cover body and an auxiliary disassembly structure, and by setting the auxiliary disassembly structure to be composed of a longitudinal auxiliary disassembly piece and a transverse auxiliary disassembly piece, The longitudinal auxiliary disassembly part is arranged to be composed of a longitudinal bracket and a longitudinal heat expansion body, and the transverse auxiliary disassembly part is arranged to be composed of a transverse bracket and a transverse heat expansion body. When the shielding cover body is disassembled by means of a heating air gun, the longitudinal heat expansion body and the transverse heat expansion body can be thermally expanded to allow the shielding cover body to be automatically separated from the mainboard, thereby avoiding the inconvenience of maintenance personnel having to use a heating air gun with one hand to heat the shielding cover body and using tweezers with the other hand to pry up the shielding cover body, and can effectively avoid the hidden danger of deformation of the shielding cover body due to excessive force during the prying process.

[0042] The longitudinal bracket is composed of a combination of a heat-conducting column and a heat-conducting rod, the heat-conducting column and the heat-conducting rod are arranged in an alternating manner, and the heat-conducting column and the heat-conducting rod are integrally formed, the longitudinal heat-absorbing expansion body is a tubular structure, and the longitudinal heat-absorbing expansion body is cast from high-temperature resistant silicone rubber, the two ends of the longitudinal heat-absorbing expansion body are respectively fixedly connected to the heat-conducting columns on both sides, the heat-conducting rod is arranged in the inner cavity of the longitudinal heat-absorbing expansion body, and the inner cavity of the longitudinal heat-absorbing expansion body is filled with water, and the volume of the water filled in the longitudinal heat-absorbing expansion body is one tenth of the volume of the inner cavity of the longitudinal heat-absorbing expansion body, the cross-section of the mounting groove is U-shaped, the side wall of the heat-conducting column is fitted with the bottom of the mounting groove, the structure of the transverse bracket is the same as that of the longitudinal bracket, and the installation method of the transverse heat-absorbing expansion body is the same as that of the longitudinal heat-absorbing expansion body. The installation method is the same as that of the embodiment, by arranging the longitudinal bracket to be composed of a heat-conducting column and a heat-conducting rod, and casting the longitudinal heat-expanding body and the transverse heat-expanding body into a tube structure with silicone rubber, and injecting a small amount of water into the longitudinal heat-expanding body and the transverse heat-expanding body, so that when the maintenance personnel use a heating air gun to heat the solder joints of the shielding cover body, the heat can be transferred to the inside of the longitudinal heat-expanding body and the transverse heat-expanding body through the heat-conducting column and the heat-conducting rod, so that the water can evaporate, so as to allow the longitudinal heat-expanding body and the transverse heat-expanding body to expand better, and when the heating is stopped, the longitudinal heat-expanding body and the transverse heat-expanding body can be prevented from resetting too quickly, thereby preventing the solder flux between the shielding cover body and the mainboard from re-solidifying and causing re-bonding between the shielding cover body and the mainboard.

[0043] A connecting groove is provided at the end of the heat-conducting column, and the two ends of the longitudinal heat-expanding body are respectively mounted on the connecting grooves of the heat-conducting columns at both ends, and the longitudinal heat-expanding body and the connecting groove are fixedly glued, and the glue used for bonding the longitudinal heat-expanding body is high-temperature resistant inorganic glue. The setting of the connecting groove can ensure the connection stability of the longitudinal heat-expanding body and the transverse heat-expanding body.

[0044] Embodiment 2, based on embodiment 1, heat dissipation columns are integrally formed on the side wall of the heat-conducting rod, and multiple groups of heat dissipation columns are evenly arranged around the heat-conducting rod, and the ends of the heat dissipation columns are arranged in a hemispherical shape.

[0045] A heat-conducting protrusion is integrally formed on the side wall of the heat dissipation column. The heat-conducting protrusion is a hemispherical protrusion structure, and multiple groups of heat-conducting protrusions are evenly arranged around the heat dissipation column. The heat dissipation column and the heat-conducting protrusion are both cast from heat-conducting metal, which effectively increases the heat exchange area, thereby improving the expansion efficiency of the heat-expanding body and the transverse heat-expanding body.

[0046] Embodiment three, on the basis of embodiment two, an air avoidance groove is opened on the side wall of the installation groove, and an elastic plate is integrally formed at the bottom of the air avoidance groove, and the elastic plate is arranged corresponding to the heat-conducting column, and a positioning protrusion is integrally formed on the outer side surface of the elastic plate, and both ends of the positioning protrusion are arranged with arc-mounted slope surfaces, and when the auxiliary disassembly structure is actually installed, the arc-mounted slope surface of the upper side end of the positioning protrusion is arranged in contact with the side wall of the heat-conducting column, and the lower side end of the heat-conducting column is flush with the port of the installation groove, and the arrangement of the elastic plate and the positioning protrusion facilitates the disassembly and assembly of the auxiliary disassembly structure.

[0047] The end of the transverse bracket is provided with a locking groove, and the end of the longitudinal bracket is integrally formed with a locking protrusion. When the longitudinal bracket and the transverse bracket are actually docked, the locking protrusion is embedded in the locking groove, which facilitates disassembly and installation between the longitudinal bracket and the transverse bracket.

[0048] A spherical groove is provided at the root of the engaging groove, a positioning ball is integrally formed at the end of the engaging protrusion, an open groove is penetrated through the engaging protrusion and the positioning ball, the engaging protrusion is cast from spring steel, the positioning ball is matched with the spherical groove, and the diameter of the positioning ball is greater than the width of the engaging groove. When the longitudinal bracket and the transverse bracket are actually docked, the positioning ball is embedded into the spherical groove along the engaging groove, thereby improving the stability of the alignment connection between the longitudinal bracket and the transverse bracket.

[0049] Embodiment 4, on the basis of embodiment 3, a method for using a shielding cover structure, the method for using the shielding cover structure is used to disassemble and assemble the above-mentioned shielding cover structure, the method of using is that when the shielding cover body needs to be disassembled, the maintenance personnel blows and heats the solder joints of the shielding cover body with a handheld heating air gun, at this time, the shielding cover body is heated and conducts the heat to the heat-conducting column and the heat-conducting rod, so that the water in the inner cavity of the longitudinal heated expansion body is heated and evaporates, so that the heated expansion body expands, and when the solder joints between the shielding cover body and the mainboard melt, the shielding cover body will be propped up under the action of the heated expansion body, so as to avoid the soldering flux between the shielding cover body and the mainboard from re-solidifying and causing the shielding cover body and the mainboard to be re-bonded together, and when the water vapor in the heated expansion body is liquefied, the soldering flux between the shielding cover body and the mainboard has solidified, and when the shielding cover body needs to be welded on the mainboard, first, the shielding cover body is positioned on the mainboard by pressurizing the positioning tool, and then the soldering flux is added at the contact position between the shielding cover body and the mainboard, and then the welding step is performed by a handheld heating air gun.

[0050] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A shielding cover structure, characterized in that: include: A shielding cover body (1), the shielding cover body (1) being welded on the main board (3), the shielding cover body (1) being a rectangular shell structure, and a mounting groove (4) being provided at a lower port of the shielding cover body (1), the mounting groove (4) being a rectangular frame structure; An auxiliary disassembly structure (2), the auxiliary disassembly structure (2) being installed in the installation groove (4), the auxiliary disassembly structure (2) being composed of a longitudinal auxiliary disassembly member (5) and a transverse auxiliary disassembly member (6), and the longitudinal auxiliary disassembly member (5) and the transverse auxiliary disassembly member (6) are symmetrically arranged in a group, and the longitudinal auxiliary disassembly member (5) and the transverse auxiliary disassembly member (6) are enclosed to form a rectangular frame structure; The longitudinal auxiliary disassembly member (5) is composed of a longitudinal support (7) and a longitudinal heat expansion body (8); The transverse auxiliary disassembly member (6) is composed of a transverse support (9) and a transverse heat expansion body (10).

2. A shielding cover structure according to claim 1, characterized in that: The longitudinal bracket (7) and the transverse bracket (9) are combined to form a rectangular frame structure, the longitudinal heat expansion body (8) is mounted on the longitudinal bracket (7), and the transverse heat expansion body (10) is mounted on the transverse bracket (9). When the shielding cover body (1) is heated and disassembled by a heating gun, the longitudinal heat expansion body (8) and the transverse heat expansion body (10) are heated and expanded, and the expansion temperatures of the longitudinal heat expansion body (8) and the transverse heat expansion body (10) are lower than the melting temperature of the solder joint.

3. A shielding cover structure according to claim 2, characterized in that: The longitudinal support (7) is composed of a heat-conducting column (11) and a heat-conducting rod (12), the heat-conducting column (11) and the heat-conducting rod (12) are arranged in a staggered manner, and the heat-conducting column (11) and the heat-conducting rod (12) are integrally formed, the longitudinal heat-expanding body (8) is a tubular structure, and the longitudinal heat-expanding body (8) is cast from high-temperature resistant silicone rubber, the two ends of the longitudinal heat-expanding body (8) are respectively fixedly connected to the heat-conducting columns (11) on both sides, and the heat-conducting rod (12) is arranged in the inner cavity of the longitudinal heat-expanding body (8). The inner cavity of the longitudinal heat expansion body (8) is filled with water, and the volume of the water filled in the longitudinal heat expansion body (8) is one tenth of the volume of the inner cavity of the longitudinal heat expansion body (8), the cross-section of the installation groove (4) is U-shaped, the side wall of the heat-conducting column (11) is arranged in contact with the bottom of the installation groove (4), the structure of the transverse bracket (9) is the same as the structure of the longitudinal bracket (7), and the installation method of the transverse heat expansion body (10) is the same as the installation method of the longitudinal heat expansion body (8).

4. A shielding cover structure according to claim 3, characterized in that: The end of the heat-conducting column (11) is provided with a connecting groove (13), and the two ends of the longitudinal heat-expanding body (8) are respectively sleeved on the connecting grooves (13) of the heat-conducting columns (11) at both ends, and the longitudinal heat-expanding body (8) and the connecting groove (13) are fixedly glued, and the glue used for bonding the longitudinal heat-expanding body (8) is high-temperature resistant inorganic glue.

5. A shielding cover structure according to claim 4, characterized in that: A heat dissipation column (14) is integrally formed on the side wall of the heat-conducting rod (12), and a plurality of heat-dissipation columns (14) are evenly arranged around the heat-conducting rod (12), and the ends of the heat-dissipation columns (14) are arranged in a hemispherical shape.

6. A shielding cover structure according to claim 5, characterized in that: A heat-conducting protrusion (15) is integrally formed on the side wall of the heat-dissipating column (14); the heat-conducting protrusion (15) is a hemispherical protrusion structure, and a plurality of groups of heat-conducting protrusions (15) are evenly arranged around the heat-dissipating column (14); the heat-dissipating column (14) and the heat-conducting protrusion (15) are both cast from heat-conducting metal.

7. The shielding cover structure according to claim 4, characterized in that: A clearance groove (16) is provided on the side wall of the installation groove (4), and an elastic plate (17) is integrally formed at the bottom of the clearance groove (16). The elastic plate (17) is arranged corresponding to the heat-conducting column (11), and a positioning protrusion (18) is integrally formed on the outer side surface of the elastic plate (17). Both ends of the positioning protrusion (18) are arranged in the form of arc-shaped sloped surfaces, and when the auxiliary disassembly structure (2) is actually installed, the arc-shaped sloped surface of the upper side end of the positioning protrusion (18) is arranged in contact with the side wall of the heat-conducting column (11), and the lower side end of the heat-conducting column (11) is flush with the end of the installation groove (4).

8. The shielding cover structure according to claim 7, characterized in that: The end of the transverse bracket (9) is provided with a snap-fitting groove (19), and the end of the longitudinal bracket (7) is integrally formed with a snap-fitting protrusion (20); when the longitudinal bracket (7) and the transverse bracket (9) are actually docked, the snap-fitting protrusion (20) is embedded in the snap-fitting groove (19).

9. A shielding cover structure according to claim 8, characterized in that: A spherical groove (21) is provided at the root of the engaging groove (19), a positioning ball (22) is integrally formed at the end of the engaging protrusion (20), an open groove (23) is provided through the engaging protrusion (20) and the positioning ball (22), the engaging protrusion (20) is cast from spring steel, the positioning ball (22) is matched with the spherical groove (21), and the diameter of the positioning ball (22) is greater than the width of the engaging groove (19), and when the longitudinal bracket (7) and the transverse bracket (9) are actually docked, the positioning ball (22) is embedded in the spherical groove (21) along the engaging groove (19).

10. A method for using a shielding cover structure, characterized in that: The method for using the shielding cover structure is used to disassemble and assemble any one of the shielding cover structures of claims 3-9. The method for using the shielding cover structure is as follows: when the shielding cover body (1) needs to be disassembled, the maintenance personnel use a handheld heating air gun to blow and heat the solder joints of the shielding cover body (1). At this time, the shielding cover body (1) is heated and conducts the heat to the heat-conducting column (11) and the heat-conducting rod (12), so that the water in the inner cavity of the longitudinal heat-expanding body (8) is heated and evaporated, thereby causing the heat-expanding body (8) to expand. When the solder joints between the shielding cover body (1) and the main board (3) melt, the shielding cover body (1) will be heated at the heat-expanding body (8). ) is propped up under the action of the shielding cover body (1) and the main board (3), thereby preventing the soldering flux between the shielding cover body (1) and the main board (3) from re-solidifying and causing the shielding cover body (1) and the main board (3) to be re-bonded together. After the water vapor in the heat expansion body (8) is liquefied, the soldering flux between the shielding cover body (1) and the main board (3) has solidified. When the shielding cover body (1) needs to be welded on the main board (3), the shielding cover body (1) is first positioned on the main board (3) by pressurizing the positioning tool, and then adding soldering flux at the contact position between the shielding cover body (1) and the main board (3), and then the welding step is performed by using a hand-held heating air gun.

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