Large-current printed circuit board integrated protection device

Abstract

The invention discloses a large-current printed circuit board integrated protection device which comprises a bottom plate, a printed circuit board, a first bearing assembly and a second bearing assembly. The first bearing assembly is composed of a first bearing seat and a first bearing piece assembly, and the second bearing assembly is composed of a second bearing seat and a second bearing piece assembly. The high-current printed circuit board integrated protection device can improve the heat dissipation effect of the printed circuit board, increase the area of a ventilation area at the lower end, prevent the printed circuit board from bottom collision caused by vibration, and prevent the printed circuit board from being damaged. And meanwhile, the stability and the buffering effect of the printed circuit board can be enhanced in cooperation with the first bearing assembly and the second bearing assembly, the printed circuit board can be well protected, and the service life of the printed circuit board is prolonged.

Description

Technical Field

[0001] The present invention relates to printed circuit board technology, and particularly to an integrated protection device for high-current printed circuit boards. Background Art

[0002] A printed circuit board, also known as a printed wiring board, is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. Almost every electronic device, from a watch and calculator to a computer and communication electronic device, as long as it has electronic components such as integrated circuits, uses a printed circuit board to achieve electrical connection between components.

[0003] Due to the gradual development of technology, the degree of integration is getting higher and higher, and the number of electronic components integrated on the circuit board is increasing, resulting in an increasing weight of the circuit board. Since printed circuit boards are fixedly installed inside devices for use, once the external device vibrates violently during use, it will drive the printed circuit board installed inside to vibrate violently as well. Such long-term vibration will cause the solder joints of the electronic components on the printed circuit board to become loose or even disconnected, ultimately leading to poor contact, thus affecting the normal use of the device. At the same time, it is difficult to avoid vibration during the transportation of the printed circuit board, which will also cause the same damage to the printed circuit board, resulting in a reduction in the service life of the printed circuit board before it is even used, and greatly reducing its practicality. Summary of the Invention

[0004] In order to solve the defects existing in the above-mentioned prior art, the present invention proposes an integrated protection device for high-current printed circuit boards.

[0005] The technical solution of the present invention is realized as follows:

[0006] An integrated protection device for high-current printed circuit boards, comprising:

[0007] A bottom plate, on one side of which there are symmetrically arranged first mounting openings, and on the other side there is a second mounting opening, and the opening directions of the first mounting opening and the second mounting opening are perpendicular to each other;

[0008] The first bearing assembly is disposed within the first installation opening. The first bearing assembly is composed of a first bearing base and a first bearing member assembly. The first bearing member is disposed in the middle of the first bearing base. The first bearing base is installed within the first installation opening and supports and raises the bottom plate. The first bearing base is provided with symmetrically arranged first arc-shaped support arms and second arc-shaped support arms. The second arc-shaped support arm is provided with a vertically extending section. An activity area is formed between the first arc-shaped support arm and the second arc-shaped support arm. A clamping gap is formed at the lower ends of the first arc-shaped support arm and the second arc-shaped support arm. The first bearing member is inserted into the clamping gap. The first bearing member is provided with an arc-shaped pressing arm, and the arc-shaped pressing arm is disposed within the activity area;

[0009] And the second bearing assembly is disposed within the second installation opening. The second bearing assembly is composed of a second bearing base and a second bearing member assembly. The second bearing member is installed in the middle of the second bearing base. The second bearing base is disposed within the second installation opening. An installation area is formed in the middle of the second bearing base. The second bearing member is disposed within the installation area. The upper end and the lower end of the second bearing member are respectively hinged and installed on the second bearing base through hinge shafts.

[0010] In the present invention, the first bearing base is further provided with a bearing section and symmetrically arranged inclined sections. The bearing section connects one end of the symmetrically arranged sections. The other ends of the symmetrically arranged inclined sections are respectively connected to the first arc-shaped support arm and the second arc-shaped support arm. A fixed area is formed between the bearing section and the symmetrically arranged inclined sections. The bottom of the first bearing member is inserted into the fixed area.

[0011] In the present invention, contact parts are formed at the connection positions of the inclined sections with the first arc-shaped support arm and the second arc-shaped support arm. The clamping gap is formed between the contact parts. A limiting notch is provided within the clamping gap.

[0012] In the present invention, the first bearing member further includes a fixed arm and a strengthening arm. The fixed arm is composed of a matching section, a bending section, and a fixing section. The matching section and the strengthening arm are vertically and parallelly arranged. The fixing section is inserted into the fixed area through the clamping gap and is placed on the bearing section. A limiting protrusion that cooperates with the limiting notch is provided on the bending section.

[0013] In the present invention, a first compression area is formed between the arc-shaped pressing arm and the strengthening arm. A second compression area is formed between the arc-shaped pressing arm and the second arc-shaped support arm.

[0014] In the present invention, a stamping hole is provided on the arc pressing arm, a pressing arm is arranged in the stamping hole, a moving hole cooperating with the pressing arm is provided on the vertical extension section, symmetric arc surfaces are arranged in the moving hole, the arc surfaces are tangent to the surface of the pressing arm, a supporting surface is provided on the first arc-shaped supporting arm, and a pressing hook cooperating with the supporting surface is provided on the arc pressing arm.

[0015] In the present invention, the second bearing seat is composed of a connecting plate, a first hinged plate and a second hinged plate. The first hinged plate is located at the upper end of the second hinged plate. An installation area is formed between the first hinged plate and the second hinged plate. An extension plate is provided at the lower end of the connecting plate, and the extension plate is in contact with the side surface of the bottom plate.

[0016] In the present invention, moving grooves, hinged arc openings and placing openings are provided on the first hinged plate and the second hinged plate. The hinged arc opening communicates with the installation area through the placing opening, and the arc angle of the hinged arc opening is a major arc.

[0017] In the present invention, the second bearing member is composed of a first elastic part, a second elastic part and a connecting part for connecting the first elastic part and the second elastic part. The first elastic part is composed of a first elastic arm and a second elastic arm. Both the first elastic arm and the second elastic arm are arc-shaped. The second elastic arm cooperates with the hinged arc opening through a hinge shaft. The first elastic arm is arranged in the moving groove. The second elastic part is composed of a third elastic arm and a fourth elastic arm. Both the third elastic arm and the fourth elastic arm are arc-shaped. The fourth elastic arm cooperates with the hinged arc opening through a hinge shaft. The third elastic arm is arranged in the moving groove. The connecting part is composed of a connecting block and symmetrically arranged clamping plates. The symmetrically arranged clamping plates are respectively connected with the first elastic part and the second elastic part. A clamping area is formed between the clamping plates.

[0018] In the present invention, a first sliding block is provided on the first elastic arm, a second sliding block is provided on the third elastic arm, a positioning block is arranged between the second sliding block and the third elastic arm, and the positioning block cooperates with the second installation opening for limiting.

[0019] Implementing the integrated protection device for large-current printed circuit boards of the present invention has the following beneficial effects: The integrated protection device for large-current printed circuit boards can improve the heat dissipation effect of the printed circuit board, increase the area of the lower ventilation area, and at the same time can prevent the printed circuit board from being damaged due to vibration and bottom collision. At the same time, cooperating with the first bearing assembly and the second bearing assembly can strengthen the stability and buffering effect of the printed circuit board, can play a good protection effect on the printed circuit board, and extend the service life of the printed circuit board. Description of the Drawings

[0020] Figure 1 Schematic diagram of the structure of the high-current printed circuit board integrated protection device of the present invention;

[0021] Figure 2 is Figure 1 front view of;

[0022] Figure 3 is Figure 1 schematic diagram of the bottom plate in;

[0023] Figure 4 is Figure 3 partial enlarged view at position A in;

[0024] Figure 5 is Figure 3 partial enlarged view at position B in;

[0025] Figure 6 is Figure 1 schematic diagram of the second bearing component in;

[0026] Figure 7 is Figure 6 top view of;

[0027] Figure 8 is Figure 7 sectional view taken along line C-C in;

[0028] Figure 9 is Figure 6 exploded view of;

[0029] Figure 10 is Figure 1 schematic diagram of the first bearing component in;

[0030] Figure 11 is Figure 10 top view of;

[0031] Figure 12 is Figure 11 sectional view taken along line D-D in;

[0032] Figure 13 is Figure 12 exploded view of.

[0033] In the figure: bottom plate 1, printed circuit board 2, first bearing assembly 3, second bearing assembly 4, suspended area 5, first mounting opening 6, second mounting opening 7, through-channel 8, limiting channel 9, first bearing seat 10, clamping gap 11, first bearing member 12, base 13, second bearing seat 14, first arc-shaped support arm 15, second arc-shaped support arm 16, bearing section 17, inclined section 18, fixed area 19, vertical extension section 20, pressing arm 21, moving hole 22, moving end 23, connecting end 24, arc-shaped pressing arm 25, pressing hook 26, moving area 27, contact part 28, limiting notch 29, fixed arm 30, strengthening arm 31, first arc-shaped part 32, second arc-shaped part 33, mating section 34, bending section 35, fixed section 36, limiting protrusion 37, first compression area 38, second compression area 39, connecting plate 40, connecting part 41, punching hole 42, arc surface 43, supporting surface 44, second bearing member 45, mounting area 46, hinge shaft 47, first hinge plate 48, second hinge plate 49, extension plate 50, moving slot 51, hinge arc opening 52, placing opening 53, first elastic part 54, second elastic part 55, first elastic arm 56, second elastic arm 57, third elastic arm 58, fourth elastic arm 59, connecting block 60, clamping plate 61, clamping area 62, third compression area 63, first sliding block 64, second sliding block 65, positioning block 66, insertion slot 67, positioning slot 68, guiding area 69, inner wall surface 70, holding area 71. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] As Figures 1 to 13 shown, this large-current printed circuit board integrated protection device of the present invention includes a bottom plate 1, a printed circuit board 2, a first bearing assembly 3, and a second bearing assembly 4. The printed circuit board 2 is arranged on the bottom plate 1 through the first bearing assembly 3 and the second bearing assembly 4, and the printed circuit board 2 is supported by the first bearing assembly 3 and the second bearing assembly 4, so that a suspended area 5 is formed between the printed circuit board 2 and the bottom plate 1, which can improve the heat dissipation effect of the printed circuit board 2, increase the area of the ventilation area at the lower end, and at the same time can also prevent the printed circuit board 2 from being damaged due to vibration and bottom collision. At the same time, in cooperation with the first bearing assembly 3 and the second bearing assembly 4, the stability and buffering effect of the printed circuit board 2 can be enhanced, which can play a good protective effect on the printed circuit board 2 and extend the service life of the printed circuit board 2.

[0036] Of course, in actual application, all the first bearing assemblies 3 can be used for protection and support, or all the second bearing assemblies 4 can be used for protection and support, or according to Figure 1As shown in FIG, a first bearing assembly 3 and a second bearing assembly 4 are used in cooperation with each other.

[0037] A symmetrically arranged first installation opening 6 is provided on one side of the bottom plate 1, and a second installation opening 7 is provided on the other side. The opening directions of the first installation opening 6 and the second installation opening 7 are arranged vertically. The first installation opening 6 is composed of a through channel 8 and a limiting channel 9. The through channel 8 is located outside the limiting channel 9. The first bearing seat 10 is installed in the limiting channel 9 through the through channel 8. The width of the through channel 8 is smaller than the width of the limiting channel 9. When the first bearing seat 10 is installed in the first installation opening 6 and is in the position of passing through the through channel 8, the clamping gap 11 on the first bearing seat 10 is in a closed and fitted state. When the first bearing seat 10 is in the limiting channel 9, the clamping gap 11 on the first bearing seat 10 is in an open state, and is stretched open by the first bearing member 12, so that the first bearing seat 10 is limited in the limiting channel 9.

[0038] Example 1

[0039] The first bearing assembly 3 is arranged in the first installation opening 6, and the first bearing assembly 3 is composed of a first bearing seat 10 and a first bearing member 12 assembly. The first bearing seat 10 is used to support the first bearing member 12 and the base 13, and cooperate with the second bearing seat 14 to lift the base 13, and also can limit the first bearing seat 10 and the second bearing seat 14 on the base 13.

[0040] The first bearing member 12 is arranged in the middle of the first bearing seat 10, and the first bearing seat 10 is installed in the first installation opening 6 and supports and lifts the bottom plate 1. The first bearing seat 10 is provided with a symmetrically arranged first arc-shaped support arm 15 and a second arc-shaped support arm 16, and the first bearing seat 10 is also provided with a bearing section 17 and a symmetrically arranged inclined section 18, the bearing section 17 connects one end of the symmetrical arrangement, and the other end of the symmetrically arranged inclined section 18 is respectively connected to the first arc-shaped support arm 15 and the second arc-shaped support arm 16, and a fixed area 19 is formed between the bearing section 17 and the symmetrically arranged inclined section 18, and the bottom of the first bearing member 12 is inserted into the fixed area 19.

[0041] A vertical extension section 20 is provided on the second arc-shaped support arm 16, and the vertical extension section 20 is used to support the pressing arm 21, so that the pressing arm 21 can use the movable hole 22 on the vertical extension section 20 as a fulcrum to form a lever. When an external force is applied to the movable end 23 of the pressing arm 21, the arc pressure arm 25 will be lifted through the connecting end 24 of the pressing arm 21, thereby causing the pressure hook 26 to move upward.

[0042] An active area 27 is formed between the first arc-shaped support arm 15 and the second arc-shaped support arm 16. The first carrier 12 is disposed within the active area 27. When the printed circuit board 2 is installed, the external force acting on the first carrier 12 can cause the first carrier 12 to deform and displace within the active area 27 under the force.

[0043] A clamping gap 11 is formed at the lower ends of the first arc-shaped support arm 15 and the second arc-shaped support arm 16. The first carrier 12 is inserted into the clamping gap 11, and the clamping gap 11 can limit the position of the first carrier 12. An arc-shaped pressing arm 25 is provided on the first carrier 12, and the arc-shaped pressing arm 25 is disposed within the active area 27.

[0044] Contact portions 28 are formed at the connections between the inclined section 18 and the first arc-shaped support arm 15 and the second arc-shaped support arm 16. A clamping gap 11 is formed between the contact portions 28, and a limiting notch 29 is provided within the clamping gap 11.

[0045] The first carrier 12 further includes a fixing arm 30 and a strengthening arm 31. One end of the strengthening arm 31 is connected to the fixing arm 30 through a first arc portion 32, and the other end of the strengthening arm 31 is connected to the arc-shaped pressing arm 25 through a second arc portion 33. The fixing arm 30 is composed of a mating section 34, a bending section 35, and a fixing section 36. The mating section 34 is vertically and parallelly arranged with the strengthening arm 31. The fixing section 36 is inserted into the fixing area 19 through the clamping gap 11 and placed on the bearing section 17. A limiting protrusion 37 that mates with the limiting notch 29 is provided on the bending section 35.

[0046] The limiting notch 29 and the limiting protrusion 37 are fitted and installed. The width of the limiting notch 29 and the width of the limiting protrusion 37 are smaller than the widths of the contact portion 28 and the bending section 35.

[0047] A first compression area 38 is formed between the arc-shaped pressing arm 25 and the strengthening arm 31, and a second compression area 39 is formed between the arc-shaped pressing arm 25 and the second arc-shaped support arm 16. When the printed circuit board 2 is installed, the length of the printed circuit board 2 is greater than the distance between the mating section 34 and the connecting plate 40. Under the action of different lengths, the fixing arm 30 and the strengthening arm 31 are pushed to deform, causing the areas of the first compression area 38 and the second compression area 39 to change under force.

[0048] As Figure 1 and 2 shown, the length of the printed circuit board 2 at this time is exactly the length between the fixing arm 30 and the connecting plate 40. Therefore, the connecting portion 41 and the fixing arm 30 at this time are not deformed due to different lengths.

[0049] A stamping hole 42 is provided on the arc pressing arm 25, and a pressing arm 21 is provided in the stamping hole 42. The pressing arm 21 is a part separated from the stamping hole 42. An activity hole 22 cooperating with the pressing arm 21 is provided on the vertically extending section 20. Symmetrically arranged arc surfaces 43 are provided in the activity hole 22, and the arc surfaces 43 are tangent to the surface of the pressing arm 21. A supporting surface 44 is provided on the first arc-shaped supporting arm 15, and a pressing hook 26 cooperating with the supporting surface 44 is provided on the arc pressing arm 25. The pressing hook 26 is arc-shaped, which is convenient for the rapid installation of the printed circuit board 2. The printed circuit board 2 can be guided through the arc-shaped outer wall surface.

[0050] When an external force is applied to the movable end 23 of the pressing arm 21, the connecting end 24 on the pressing arm 21 can drive the pressing hook 26 on the arc pressing arm 25 to move upward. As Figure 12 shown, at this time, the pressing hook 26 is at the lower end of the supporting surface 44. Under the force of the pressing arm 21, the pressing hook 26 can be driven to move to the upper end of the supporting surface 44, thus facilitating the installation or disassembly of the printed circuit board 2.

[0051] Embodiment 2

[0052] The second bearing assembly 4 is arranged in the second installation opening 7. The second bearing assembly 4 is composed of a second bearing seat 14 and a second bearing member 45. The second bearing member 45 is installed in the middle of the second bearing seat 14. The second bearing seat 14 is arranged in the second installation opening 7. An installation area 46 is formed in the middle of the second bearing seat 14. The second bearing member 45 is arranged in the installation area 46. The upper end and the lower end of the second bearing member 45 are both hinged and installed on the second bearing seat 14 through a hinge shaft 47.

[0053] The second bearing seat 14 is composed of a connecting plate 40, a first hinge plate 48 and a second hinge plate 49. The first hinge plate 48 is located at the upper end of the second hinge plate 49. An installation area 46 is formed between the first hinge plate 48 and the second hinge plate 49. The second bearing member 45 is arranged in the installation area 46. An extension plate 50 is provided at the lower end of the connecting plate 40, and the extension plate 50 contacts the side surface of the bottom plate 1. The extension plate 50 can not only limit the installation position of the second bearing seat 14, but also cooperate with the first bearing seat 10 to support the base 13.

[0054] Activity slots 51, hinge arc openings 52 and placement openings 53 are provided on the first hinge plate 48 and the second hinge plate 49. The hinge arc openings 52 communicate with the installation area 46 through the placement openings 53. The arc angle of the hinge arc openings 52 is a major arc. The width of the placement opening 53 is slightly smaller than the diameter of the hinge shaft 47, and it needs to be pressed by an external force to install it therein. The hinge shaft 47 can also be inserted into the hinge arc openings 52 from both sides. The smaller-width placement opening 53 can prevent the hinge shaft 47 from detaching from the hinge arc openings 52.

[0055] The second carrier 45 is composed of a first elastic part 54, a second elastic part 55, and a connecting part 41 for connecting the first elastic part 54 and the second elastic part 55. The first elastic part 54 is composed of a first elastic arm 56 and a second elastic arm 57. Both the first elastic arm 56 and the second elastic arm 57 are arc-shaped. The second elastic arm 57 is matched with the hinge arc opening 52 through a hinge shaft 47. The first elastic arm 56 is arranged in the movable slot 51.

[0056] The second elastic part 55 is composed of a third elastic arm 58 and a fourth elastic arm 59. Both the third elastic arm 58 and the fourth elastic arm 59 are arc-shaped. The fourth elastic arm 59 is matched with the hinge arc opening 52 through a hinge shaft 47. The third elastic arm 58 is arranged in the movable slot 51.

[0057] A guiding area 69 is formed between the first elastic arm 56 and the third elastic arm 58. Holding areas 71 are formed between the first elastic arm 56 and the second elastic arm 57, and between the third elastic arm 58 and the fourth elastic arm 59.

[0058] The connecting part 41 is composed of a connecting block 60 and symmetrically arranged clamping plates 61. The symmetrically arranged clamping plates 61 are respectively connected to the first elastic part 54 and the second elastic part 55. A clamping area 62 is formed between the clamping plates 61.

[0059] When the connecting part 41 is stressed and deformed, a third compression area 63 is formed between the connecting block 60 and the inner wall surface 70 of the connecting plate 40. The printed circuit board 2 will push the connecting block 60 in the direction of the connecting plate 40.

[0060] A first sliding block 64 is arranged on the first elastic arm 56. A second sliding block 65 is arranged on the third elastic arm 58. A positioning block 66 is arranged between the second sliding block 65 and the third elastic arm 58. The positioning block 66 is limited by cooperation with the second mounting opening 7.

[0061] The second mounting opening 7 is composed of an insertion slot 67 and a positioning slot 68. The positioning slot 68 is limited by cooperation with the positioning block 66. Pull the second sliding block 65 to drive the positioning block 66 to move downward until it is lower than the position of the insertion slot 67. Then when it reaches the positioning slot 68, the positioning block 66 is pulled and limited in the positioning slot 68 under the elastic force of the third elastic arm 58.

[0062] After the printed circuit board 2 is installed, it will also push the connecting part 41 towards the inner wall surface 70 of the connecting board 40, causing the first elastic arm 56 and the third elastic arm 58 to be subjected to tensile force and deform. Under the reaction force, the printed circuit board 2 is supported and restricted on the first bearing member 12 and the second bearing member 45. The second elastic arm 57 and the fourth elastic arm 59 will exert a reverse force to block the movement of the first elastic arm 56 and the third elastic arm 58, preventing the first elastic arm 56 and the third elastic arm 58 from deforming excessively under force.

[0063] The first bearing member 12 and the second bearing member 45 are made of elastic rubber material, which can play a supporting and buffering effect. The first bearing seat 10 and the second bearing seat 14 are made of hard plastic and can undergo slight deformation under force, facilitating installation.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high current printed circuit board integrated protection device, characterized in that: include: A bottom plate, wherein one side of the bottom plate is provided with a first mounting opening symmetrically arranged, and the other side of the bottom plate is provided with a second mounting opening, and the opening directions of the first mounting opening and the second mounting opening are arranged perpendicularly; A first bearing assembly is arranged in the first installation opening, the first bearing assembly is composed of a first bearing seat and a first bearing member assembly, the first bearing member is arranged in the middle of the first bearing seat, the first bearing seat is installed in the first installation opening and lifts the bottom plate support, the first bearing seat is provided with a first arc-shaped support arm and a second arc-shaped support arm which are symmetrically arranged, the second arc-shaped support arm is provided with a vertical extension section, an active area is formed between the first arc-shaped support arm and the second arc-shaped support arm, a clamping gap is formed at the lower ends of the first arc-shaped support arm and the second arc-shaped support arm, the first bearing member is inserted in the clamping gap, and a circular arc pressure arm is provided on the first bearing member, and the circular arc pressure arm is arranged in the active area; And a second bearing assembly arranged in the second mounting opening, the second bearing assembly consists of a second bearing seat and a second bearing member assembly, the second bearing member is installed in the middle of the second bearing seat, the second bearing seat is arranged in the second mounting opening, the middle of the second bearing seat forms an installation area, the second bearing member is arranged in the installation area, and the upper end and the lower end of the second bearing member are both hingedly mounted on the second bearing seat through a hinge shaft.

2. The high current printed circuit board integrated protection device according to claim 1, characterized in that: The first bearing seat is also provided with a bearing section and a symmetrically arranged inclined section. The bearing section connects one end of the symmetrical arrangement, and the other end of the symmetrically arranged inclined section is respectively connected to the first arc-shaped support arm and the second arc-shaped support arm. A fixed area is formed between the bearing section and the symmetrically arranged inclined section, and the bottom of the first bearing member is inserted into the fixed area.

3. The high current printed circuit board integrated protection device according to claim 2, characterized in that: A contact portion is formed at the connection between the inclined section and the first arc-shaped support arm and the second arc-shaped support arm, and a clamping gap is formed between the contact portions. A limiting notch is provided in the clamping gap.

4. The high current printed circuit board integrated protection device according to claim 3, characterized in that: The first bearing member is also provided with a fixed arm and a reinforcing arm, the fixed arm is composed of a matching section, a bending section and a fixed section, the matching section and the reinforcing arm are arranged vertically and parallel, the fixed section is inserted into the fixed area through the clamping gap and placed on the bearing section, and the bending section is provided with a limiting protrusion that matches the limiting recess.

5. The high current printed circuit board integrated protection device according to claim 4, characterized in that: A first compression area is formed between the circular arc pressure arm and the reinforcing arm, and a second compression area is formed between the circular arc pressure arm and the second arc-shaped supporting arm.

6. The high current printed circuit board integrated protection device according to claim 5, characterized in that: A stamping hole is provided on the circular arc pressure arm, a pressing arm is provided in the stamping hole, a movable hole cooperating with the pressing arm is provided on the vertical extension section, a symmetrically arranged circular arc surface is provided in the movable hole, the circular arc surface is tangent to the surface of the pressing arm, a supporting surface is provided on the first arc-shaped supporting arm, and a pressure hook cooperating with the supporting surface is provided on the circular arc pressure arm.

7. The high current printed circuit board integrated protection device according to claim 1, characterized in that: The second bearing seat is composed of a connecting plate, a first hinge plate and a second hinge plate, the first hinge plate is located at the upper end of the second hinge plate, the installation area is formed between the first hinge plate and the second hinge plate, and an extension plate is provided at the lower end of the connecting plate, and the extension plate contacts the side of the base plate.

8. The high current printed circuit board integrated protection device according to claim 7, characterized in that: The first hinge plate and the second hinge plate are provided with a movable groove, a hinge arc opening and an insertion port, the hinge arc opening is connected with the installation area through the insertion port, and the arc angle of the hinge arc opening is a major arc.

9. The high current printed circuit board integrated protection device according to claim 8, characterized in that: The second bearing member is composed of a first elastic part, a second elastic part and a connecting part for connecting the first elastic part and the second elastic part, the first elastic part is composed of a first elastic arm and a second elastic arm, the first elastic arm and the second elastic arm are both arranged in an arc shape, the second elastic arm cooperates with the hinge arc through a hinge axis, and the first elastic arm is arranged in a movable groove, the second elastic part is composed of a third elastic arm and a fourth elastic arm, the third elastic arm and the fourth elastic arm are both arranged in an arc shape, the fourth elastic arm cooperates with the hinge arc through a hinge axis, and the third elastic arm is arranged in the movable groove, the connecting part is composed of a connecting block and a symmetrically arranged clamping plate, the symmetrically arranged clamping plates are respectively connected to the first elastic part and the second elastic part, and a clamping area is formed between the clamping plates.

10. The high current printed circuit board integrated protection device according to claim 9, characterized in that: The first elastic arm is provided with a first sliding block, the third elastic arm is provided with a second sliding block, a positioning block is provided between the second sliding block and the third elastic arm, and the positioning block cooperates with the second installation opening to limit position.

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