Heat dissipation structure of full-wrapped cable clamp of low-voltage complete switchgear

Abstract

The application discloses a heat dissipation structure of a full-cover cable clamp of low-voltage complete switch equipment, relates to the technical field of cable clamps, and comprises a base, which is provided with a flexible bearing block and a pressing seat; an arch part is fixedly arranged on the flexible bearing block; an arc-shaped placing groove is formed in the arch part; and heat conduction strips in a circumferential array are fixedly arranged in the placing groove. The heat dissipation structure of the full-cover cable clamp of the low-voltage complete switch equipment is characterized in that the pressing seat is slid to be close to the flexible bearing block, the pressing seat is moved to extrude the cable in the placing groove, the pressing seat further extrudes the arch part to deform to adhere to the side surface of the cable, full-cover fixing and limiting of the cable are completed, the heat conduction strips in the placing groove are axially in contact with the circumferential side of the cable, the heat conduction strips are used to directly touch the cable for heat dissipation, the heat dissipation efficiency of the wrapped cable is improved, and the problem of high-temperature damage of the cable caused by the difficulty in heat dissipation of the cable is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable clamp, in particular to a heat dissipation structure of a full-cover cable clamp of a low-voltage switchgear. BACKGROUND

[0002] It is known that the existing low-voltage switchgear generally installs electrical components on the back plate through component assembly rails, and the wiring is also arranged on the back plate. Cable clamps are commonly used to organize and fix the cable wiring.

[0003] For example, an invention patent with the application publication number CN118712903A and the application publication date of September 27, 2024, and the name of "A high-voltage switchgear convenient for wiring" has a specific structure of a wire clamp assembly, which includes a sliding block. A screw rod A is installed on the top of the sliding block through a threaded connection. A locking nut A is connected to the outer side of the screw rod A through a threaded connection. Screw rods B are installed on both sides of the sliding block through a threaded connection. A fixed frame is fixedly installed on the other end of the screw rod B. A silica gel pad is fixedly installed on the inner wall of the fixed frame. A deformation hole is formed on the surface of the silica gel pad.

[0004] The existing technology has the following disadvantages. The sliding block is used to press the cable into the deformation hole of the silica gel pad, so that the silica gel pad deforms and adheres to the circumference of the cable to form full-cover protection and limiting. However, since the silica gel pad directly touches and wraps the cable, the heat generated by the cable during operation is difficult to dissipate, which may cause damage to the cable due to high temperature. SUMMARY

[0005] The present application aims to provide a heat dissipation structure of a full-cover cable clamp of a low-voltage switchgear to solve the above-mentioned problems in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a heat dissipation structure of a full-cover cable clamp of a low-voltage switchgear, which includes a base. A flexible bearing block and a pressing seat arranged in sliding relation to the flexible bearing block are arranged on the base. An arched portion in the shape of a semi-cylinder is fixedly arranged on the flexible bearing block. An arc-shaped placement groove is formed in the arched portion. Heat-conducting strips in a circumferential array are fixedly arranged in the placement groove.

[0007] Further description of the above-mentioned technical solution: a pressing groove is formed in the pressing seat. The bottom surface of the pressing groove is arc-shaped, and the curvature of the bottom surface of the pressing groove is greater than the curvature of the bottom surface of the placement groove.

[0008] Further description of the above-mentioned technical solution: an arc-shaped elastic plate is further included. Both ends of the elastic plate are fixedly connected to the movable cavities formed in the flexible bearing block. The middle part of the elastic plate is arched towards the side of the pressing groove in the default state.

[0009] As a further description of the above technical solution: further comprising a connecting rope arranged in an arc shape to sequentially connect the plurality of heat-conducting strips.

[0010] As a further description of the above technical solution: a middle portion of the connecting rope is connected to a pull rope portion, and another end of the pull rope portion is fixedly connected to a middle portion of the elastic plate.

[0011] As a further description of the above technical solution: further comprising a bead arranged on the pull rope portion, a knot is arranged on the pull rope portion to axially limit the bead, and the elastic plate is in a default state such that the bead is located in a spherical cavity arranged on the flexible bearing block.

[0012] As a further description of the above technical solution: further comprising a swing strip symmetrically arranged on the compression seat, an arc-shaped abutting surface is arranged on the base, the swing strip moves along with the compression seat to make the end of the swing strip abut against the abutting surface, and the swing strip swings to close the compression groove.

[0013] As a further description of the above technical solution: a protruding portion is arranged on the swing strip, and the swing strip is driven to rotate to make the protruding portion press the end of the elastic plate.

[0014] As a further description of the above technical solution: the compression seat is symmetrically provided with an air deflector coaxially arranged with the compression groove.

[0015] As a further description of the above technical solution: further comprising a driving rod screwedly arranged on the base, a rotating portion is arranged on a first end of the driving rod, and the rotating portion is rotatably connected to a connecting portion fixedly arranged on the compression seat.

[0016] In the above technical solution, the low-voltage complete switch device full-cover cable clamp heat dissipation structure provided by the application uses the compression seat to slide close to the flexible bearing block, the compression seat moves to press the cable in the placing groove, and the compression seat also presses the arching portion to deform to fit the side surface of the cable, thereby completing full-cover fixing and limiting of the cable, at this time, the heat-conducting strips in the placing groove also axially abut against the circumferential side of the cable, and the heat-conducting strips are used to directly touch the cable to dissipate heat, thereby improving the heat dissipation efficiency of the wrapped cable, avoiding the problem of high-temperature damage of the cable due to the difficulty of heat dissipation of the cable, and improving the protection of the cable. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0018] Figure 1The overall structural schematic diagram provided by the embodiment of the present application;

[0019] Figure 2 The overall structural sectional view schematic diagram provided by the embodiment of the present application;

[0020] Figure 3 The explosion structural schematic diagram of the base and the driving rod provided by the embodiment of the present application;

[0021] Figure 4 The structural schematic diagram of the compression seat and the swing bar provided by the embodiment of the present application;

[0022] Figure 5 The structural schematic diagram of the flexible bearing block, the heat-conducting bar and the elastic plate provided by the embodiment of the present application;

[0023] Figure 6 The explosion structural schematic diagram of the compression seat and the swing bar provided by the embodiment of the present application;

[0024] Figure 7 The explosion structural schematic diagram of the flexible bearing block, the heat-conducting bar and the elastic plate provided by the embodiment of the present application;

[0025] Figure 8 The partial structural enlarged schematic diagram of A in the Figure 2

[0026] Figure 9 The partial structural sectional view schematic diagram of the flexible bearing block provided by the embodiment of the present application.

[0027] Explanation of reference numerals:

[0028] 1, base; 11, installation groove; 112, abutting surface; 13, mounting portion; 2, flexible bearing block; 21, arch portion; 22, placement groove; 221, mounting groove; 23, movable cavity; 24, spherical cavity; 31, compression seat; 311, compression groove; 312, air deflector; 313, connecting portion; 314, mounting hole; 32, driving rod; 321, rotating portion; 322, gripping portion; 4, heat-conducting bar; 5, elastic plate; 6, connecting rope; 61, pulling rope portion; 62, knot; 7, bead; 8, swing bar; 82, rotating shaft; 81, protruding portion. DETAILED DESCRIPTION

[0029] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0030] Please refer to Figures 1-9 ​The embodiment of the present application provides a technical scheme: including the base 1, which is provided with the flexible bearing block 2 and the compression seat 31 arranged to slide relative to the flexible bearing block 2, the flexible bearing block 2 is fixedly provided with the arch part 21 in the shape of a semi-cylinder, the arch part 21 is provided with the placement groove 22 in the shape of an arc, and the placement groove 22 is fixedly provided with the heat conduction strips 4 arranged in a circumferential array.

[0031] Preferably, as shown in the figure, the compression seat 31 is arranged to slide on the base 1, the flexible bearing block 2 is fixedly arranged in the mounting groove 11 of the base 1 by means of glue, the side of the flexible bearing block 2 facing the compression seat 31 is provided with the arch part 21, the arch part 21 is integrated with the flexible bearing block 2, and the placement groove 22 is arranged on the arch part 21 and faces the compression seat 31, so that the heat conduction strips 4 are arranged in the arc-shaped bottom surface of the placement groove 22. Figure 1 When the cable is arranged in the placement groove 22 and the compression seat 31 is driven to slide close to the flexible bearing block 2, the compression seat 31 moves to extrude the cable in the placement groove 22, and the compression seat 31 also extrudes the arch part 21 to deform to fit the side surface of the cable, so that the full-wrapping fixed limiting of the cable is completed, the heat conduction strips 4 in the placement groove 22 also axially abut the circumferential side of the cable, and then the heat conduction strips 4 are used to directly touch the cable for heat dissipation, so that the heat dissipation efficiency of the wrapped cable is improved, the problem of high-temperature damage of the cable caused by the heat generated on the cable being difficult to dissipate is avoided, and the protection of the cable is improved.

[0032] In the above technical scheme, the compression seat 31 is arranged to slide close to the flexible bearing block 2, the compression seat 31 moves to extrude the cable in the placement groove 22, and the compression seat 31 also extrudes the arch part 21 to deform to fit the side surface of the cable, so that the full-wrapping fixed limiting of the cable is completed, the heat conduction strips 4 in the placement groove 22 also axially abut the circumferential side of the cable, and then the heat conduction strips 4 are used to directly touch the cable for heat dissipation, so that the heat dissipation efficiency of the wrapped cable is improved, the problem of high-temperature damage of the cable caused by the heat generated on the cable being difficult to dissipate is avoided, and the protection of the cable is improved.

[0033] In another embodiment of the present application, the compression seat 31 is provided with the compression groove 311, the bottom surface of the compression groove 311 is in the shape of an arc, and the curvature of the bottom surface of the compression groove 311 is greater than the curvature of the bottom surface of the placement groove 22.

[0034] Preferably, as shown in the figure, the compression seat 31 is arranged to slide on the base 1, the flexible bearing block 2 is fixedly arranged in the mounting groove 11 of the base 1 by means of glue, the side of the flexible bearing block 2 facing the compression seat 31 is provided with the arch part 21, the arch part 21 is integrated with the flexible bearing block 2, and the placement groove 22 is arranged on the arch part 21 and faces the compression seat 31, so that the heat conduction strips 4 are arranged in the arc-shaped bottom surface of the placement groove 22. Figure 2As shown, the pressing groove 311 is arranged on the pressing seat 31, and the bottom arc of the pressing groove 311 is greater than the bottom arc of the placing groove 22. When the pressing seat 31 moves close to the flexible bearing block 2, the top of the arch portion 21 of the flexible bearing block 2 moves into the pressing groove 311, and as the pressing seat 31 gradually moves close to the flexible bearing block 2, the top of the arch portion 21 gradually contacts and moves along the bottom of the pressing groove 311, and the arch portion 21 is deformed to the side of the pressing groove 311 close to the cable. The heat-conducting strip 4 on the arch portion 21 has contacted the periphery of the cable, so that the arch portion 21 is deformed in the process to form a plurality of gap cavities between the flexible bearing block 2 and the periphery of the cable, the gap cavities are through at both ends in the axial direction of the cable, and the gap cavities and the heat-conducting strip 4 are distributed in a circumferential array, so that the flexible bearing block 2 and the heat-conducting strip 4 are used to fix and limit the cable in a full wrapping manner, and the gap cavities are used for air circulation to further improve the heat dissipation efficiency of the fixed cable, avoid the high-temperature damage of the cable, and improve the protection of the cable.

[0035] In another embodiment of the present application, an arc-shaped elastic plate 5 is further arranged, both ends of the elastic plate 5 are fixedly connected into the movable cavity 23 arranged on the flexible bearing block 2, and the middle part of the elastic plate 5 is arched to the side of the pressing groove 311 in the default state.

[0036] Preferably, as shown in the drawings, Figure 8 The elastic plate 5 is arc-shaped, and both ends of the elastic plate 5 are fixedly connected into the movable cavity 23, so that both ends of the elastic plate 5 extend to both ends of the arch portion 21, and the elastic plate 5 is arched to the side of the pressing groove 311 in the default state. Thus, the elastic plate 5 in the default state is used to improve the supporting force of the arch portion 21. When the pressing seat 31 moves close to the flexible bearing block 2 to press the cable into the placing groove 22, the cable is pressed by the pressing seat 31 and the middle part of the elastic plate 5 is pressed by the cable. At this time, the two sides of the arch portion 21 between the cable and the elastic plate 5 are pressed to improve the deformation speed of the arch portion 21. Since the middle part of the elastic plate 5 is pressed, the two ends of the elastic plate 5 relatively deform away to further apply the pressure of the arch portion 21 to the deformation and contraction of the placing groove 22, thereby further improving the fixing stability of the arch portion 21 of the flexible bearing block 2 to the cable.

[0037] When the cable with a small wire diameter is clamped and fixed, as the pressing seat 31 continues to move, the pressing seat 31 continuously presses the arch portion 21 to press the elastic plate 5, and the middle part of the elastic plate 5 is deformed to arch away from the placing groove 22. At this time, the pressure on the side of the arch portion 21 close to the elastic plate 5 is reduced, and the two sides of the arch portion 21 can be further deformed to press and contract the placing groove 22, thereby further improving the wrapping and protection of the cable with a small wire diameter. Thus, the existence of the elastic plate 5 is used to improve the clamping stability and applicability of the device to cables with different wire diameters.

[0038] In still another embodiment of the present application, the connecting rope 6 is arranged in an arc shape to sequentially connect the plurality of heat-conducting strips 4.

[0039] Preferably, as shown in Figure 8 The heat-conducting strips 4 are connected to each other through the connecting rope 6, so that the heat-conducting strips 4 are flexibly connected through the connecting rope 6. When the pressing seat 31 gradually moves close to the flexible bearing block 2, the top of the arch portion 21 gradually contacts and moves along the bottom surface of the pressing groove 311 to deform, and then the arch portion 21 deforms to the side of the pressing groove 311 close to the cable, and the heat-conducting strips 4 on the arch portion 21 have contacted the periphery of the cable, so that the arch portion 21 forms a plurality of gap cavities between the flexible bearing block 2 and the periphery of the cable during the deformation, and the gap cavities are arranged in a circumferential array with the heat-conducting strips 4. The connecting rope 6 is used to make the distribution of the plurality of heat-conducting strips 4 between the bottom surfaces of the placement grooves 22 more uniform, and then the connecting rope 6 is used to make the gap cavities formed by the arch portion 21 more uniformly distributed along the periphery of the cable when the pressing seat 31 and the flexible bearing block 2 complete the fixation and limiting of the cable, so as to improve the heat dissipation efficiency and uniformity of the cable, and avoid the problem of high-temperature damage caused by local overheating of the cable.

[0040] In still another embodiment of the present application, the middle part of the connecting rope 6 is connected with a pulling rope portion 61, and the other end of the pulling rope portion 61 is fixedly connected with the middle part of the elastic plate 5.

[0041] Preferably, as shown in Figure 8 The one end of the pulling rope portion 61 is connected to the middle part of the connecting rope 6, and the other end of the pulling rope portion 61 is connected to the middle part of the elastic plate 5. When the pressing seat 31 moves close to the flexible bearing block 2 to press the cable into the placement groove 22, the pressing seat 31 extrudes the cable and makes the cable extrude the middle part of the elastic plate 5 and the arch portion 21, the middle part of the elastic plate 5 is extruded, and the two ends of the elastic plate 5 relatively deform away to further apply the deformation and contraction pressure of the placement groove 22 to the arch portion 21, so as to further improve the fixation stability of the cable by the arch portion 21 of the flexible bearing block 2. With the continuous movement of the pressing seat 31, the pressing seat 31 continuously extrudes the arch portion 21 to extrude the elastic plate 5, and makes the elastic plate 5 deform to arch away from the placement groove 22 at the middle part, and at the same time, the elastic plate 5 also pulls the connecting rope 6 to contract and close to the middle part of the elastic plate 5 through the pulling rope portion 61, so as to pull the plurality of heat-conducting strips 4 to extrude the arch portion 21 to close, thereby reducing the spacing between the heat-conducting strips 4, making the gap cavities with smaller flow cross-sectional area formed on the periphery of the cable with small diameter, and further improving the fixation stability of the cable with small diameter, and avoiding the problem of the cable with small diameter from being loosened from the flexible bearing block 2 due to the too large gap cavities on the periphery.

[0042] In still another embodiment of the present application, a bead 7 is sleeved on the pull rope 61, and a knot 62 is arranged on the pull rope 61 for axially limiting the bead 7. In the default state of the elastic plate 5, the bead 7 is located in the spherical cavity 24 formed in the flexible bearing block 2.

[0043] Preferably, as shown in the drawings, Figure 8 When the elastic plate 5 is in the default state, the bead 7 is located in the spherical cavity 24. When the pressing seat 31 moves close to the flexible bearing block 2 to press the cable in the placement groove 22, the pressing seat 31 extrudes the cable and makes the cable extrude the arch portion 21 and the middle part of the elastic plate 5. The middle part of the elastic plate 5 is extruded, the two ends of the elastic plate 5 relatively deform away to further apply the pressure of the arch portion 21 to the shrinkage of the placement groove 22, and the bead 7 is located between the placement groove 22 and the elastic plate 5 to further improve the bearing capacity of the arch portion 21.

[0044] With the continuous movement of the pressing seat 31, the pressing seat 31 extrudes the arch portion 21 to continuously extrude the elastic plate 5, and makes the elastic plate 5 deform to arch the middle part of the elastic plate 5 away from the placement groove 22. At the same time, the elastic plate 5 also pulls the connection rope 6 through the pull rope 61 to shrink the middle part of the elastic plate 5 close to the elastic plate 5, thereby pulling the plurality of heat-conducting strips 4 to extrude the arch portion 21 to deform close to each other, thereby reducing the spacing between the heat-conducting strips 4, making the cable with a small wire diameter form a gap cavity with a smaller cross-sectional area of flow passage on the peripheral side of the cable. At the same time, the bead 7 is pulled out of the spherical cavity 24 into the movable cavity 23 by the elastic plate 5, and the air pressure in the spherical cavity 24 is instantaneously smaller to make the installation groove 221 in the placement groove 22 have a negative pressure suction, thereby making the heat-conducting strips 4 more closely adhere to the peripheral side of the cable, improving the heat dissipation efficiency and fixing stability of the cable.

[0045] When the pressing seat 31 continues to move and extrude the cable and the arch portion 21, the arch portion 21 continues to deform and adhere to the elastic plate 5, and the bead 7 is extruded again from the movable cavity 23 into the spherical cavity 24 to extrude the gas in the spherical cavity 24 into the placement groove 22, thereby increasing the cross-sectional flow area of the gap cavities formed between the flexible bearing block 2 and the peripheral side of the cable. Avoid the problem that the cross-sectional flow area of the gap cavities formed between the flexible bearing block 2 and the peripheral side of the cable is reduced by extrusion during the deformation of the arch portion 21.

[0046] In still another embodiment of the present application, a swing strip 8 is symmetrically arranged on the pressing seat 31, and an arc-shaped abutting surface 112 is arranged on the base 1. The swing strip 8 moves with the pressing seat 31 to make the end of the swing strip 8 contact the abutting surface 112, and the swing strip 8 swings close to the pressing groove 311.

[0047] Preferably, the swing bar 8 is provided with a rotating shaft 82, the rotating shaft 82 is rotatably arranged in the mounting hole 314 of the pressing seat 31, and the swing bar 8 is inclined to the abutting surface 112 in the default state; when the pressing seat 31 moves close to the flexible bearing block 2 to fix the cable, the swing bar 8 moves close to the abutting surface 112 synchronously with the pressing seat 31, and the end of the swing bar 8 abuts on the abutting surface 112 to move; at this time, the swing bar 8 gradually swings close to the pressing groove 311 with the movement of the pressing seat 31, so that the end of the swing bar 8 can swing to abut under the cable, and the part of the cable not clamped by the flexible bearing block 2 is supported away from the base 1, thereby avoiding the damage caused by the contact and friction between the part of the cable not wrapped and fixed and the base 1.

[0048] Preferably, the pressing seat 31 is provided with a coil spring to drive the swing bar 8 to swing back to the default state.

[0049] Preferably, the swing bar 8 is provided with a protruding part 81, and the swing bar 8 is driven to rotate to make the protruding part 81 press the end of the elastic plate 5.

[0050] Preferably, the swing bar 8 is provided with a protruding part 81, and the swing bar 8 is driven to rotate to make the protruding part 81 press the end of the elastic plate 5. Figure 8 Preferably, the swing bar 8 is provided with a protruding part 81, and the swing bar 8 is driven to rotate to make the protruding part 81 press the end of the elastic plate 5.

[0051] Preferably, the pressing seat 31 is provided with a coil spring to drive the swing bar 8 to swing back to the default state.

[0052] Preferably, the pressing seat 31 is provided with a coil spring to drive the swing bar 8 to swing back to the default state.

[0053] Preferably, the pressing seat 31 is provided with a coil spring to drive the swing bar 8 to swing back to the default state.

[0054] Preferably, the pressing seat 31 is provided with a coil spring to drive the swing bar 8 to swing back to the default state. Figure 3As shown, the lower end of the driving rod 32 is the first end, and the upper end is the second end. The first end of the driving rod 32 is provided with a rotating part 321, and the second end is provided with a holding part 322. The rotating part 321 is rotationally connected in the connecting part 313 of the pressing seat 31, and the driving rod 32 is screwedly rotationally connected on the mounting part 13 of the base 1. The driving rod 32 can be rotated by the holding part 322, so that the driving rod 32 drives the pressing seat 31 to move close to the flexible bearing block 2, and the movement of the pressing seat 31 relative to the flexible bearing block 2 is realized, which is convenient for actual use.

[0055] Working principle:

[0056] When the cable is passed between the pressing seat 31 and the flexible bearing block 2, the cable can be placed in the placing groove 22 first, and the pressing seat 31 is driven to slide close to the flexible bearing block 2. The pressing seat 31 moves to extrude the cable in the placing groove 22, and the pressing seat 31 also extrudes the deformation of the arch part 21 to fit the side surface of the cable. The top of the arch part 21 of the flexible bearing block 2 moves into the pressing groove 311, and as the pressing seat 31 gradually moves close to the flexible bearing block 2, the top of the arch part 21 gradually contacts and deforms along the bottom surface of the pressing groove 311, so that the arch part 21 deforms to the side of the pressing groove 311 close to the cable, and the heat-conducting strip 4 on the arch part 21 has been in contact with the peripheral side of the cable, so that the arch part 21 forms a plurality of gap cavities between the flexible bearing block 2 and the peripheral side of the cable in the process of deformation. The pressing seat 31 extrudes the cable and makes the cable extrude the arch part 21 and the middle part of the elastic plate 5. At this time, the two sides of the arch part 21 between the cable and the elastic plate 5 are extruded to improve the deformation speed of the arch part 21,

[0057] When the cable with small wire diameter is clamped and limited, as the pressing seat 31 continues to move, the pressing seat 31 extrudes the arch part 21 to continuously extrude the elastic plate 5, and the elastic plate 5 deforms to the middle part of the arch part 21 away from the placing groove 22. At this time, the pressure on the side of the arch part 21 close to the elastic plate 5 is reduced, and the two sides of the arch part 21 can be further deformed to extrude and shrink the placing groove 22;

[0058] With the continuous movement of the pressing seat 31, the pressing seat 31 extrudes the arching part 21 to continuously extrude the elastic plate 5 and make the elastic plate 5 deform to arch in the middle part away from the placing groove 22, at the same time, the elastic plate 5 also pulls the connecting rope 6 through the pull rope part 61 to contract the middle part of the elastic plate 5 close to each other, thereby pulling the several heat-conducting strips 4 to extrude the arching part 21 to deform close to each other, thereby reducing the spacing between the heat-conducting strips 4, making the gap cavity with smaller cross-sectional area of flow pass formed on the circumference of the cable with small wire diameter, at the same time, the bead 7 is pulled out of the spherical cavity 24 into the movable cavity 23 by the elastic plate 5, and the air pressure in the spherical cavity 24 is instantaneously smaller to make the installation groove 221 in the placing groove 22 have a negative pressure suction, thereby making the heat-conducting strips 4 more closely adhere to the circumference of the cable, when the pressing seat 31 continues to move to extrude the cable and the arching part 21, the arching part 21 continues to deform and adhere to the elastic plate 5, and the bead 7 is extruded again from the movable cavity 23 into the spherical cavity 24 to extrude the gas in the spherical cavity 24 into the placing groove 22, thereby increasing the cross-sectional flow area of the several gap cavities formed between the flexible bearing block 2 and the circumference of the cable.

[0059] The foregoing merely illustrates some exemplary embodiments of the present application, no doubt numerous modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the present application. Therefore, the above description is not intended to limit the present application, but to enable any person skilled in the art to undertake various embodiments of the present application. The above figures and descriptions are in essence illustrative, and should not be understood as limiting the scope of the present application.

Claims

1. A heat dissipation structure of a full-cable clamp of a low-voltage switchgear, comprising a base (1) on which a flexible bearing block (2) and a pressing seat (31) slidingly arranged relative to the flexible bearing block (2) are arranged, characterized in that, The flexible bearing block (2) is fixedly provided with an arcuate arch (21), the arch (21) is provided with an arc-shaped placement slot (22), and the placement slot (22) is fixedly provided with a circumferentially arrayed heat conduction strip (4); Further comprising a connecting rope (6) arranged in an arc shape to sequentially connect a plurality of heat conduction strips (4); The compression seat (31) is provided with a compression slot (311), the bottom surface of the compression slot (311) is arc-shaped, and the curvature of the bottom surface of the compression slot (311) is greater than the curvature of the bottom surface of the placement slot (22); Further comprising an arc-shaped elastic plate (5), both ends of the elastic plate (5) are fixedly connected to the movable cavity (23) provided in the flexible bearing block (2), and the middle part of the elastic plate (5) is arched towards one side of the compression slot (311); The middle part of the connecting rope (6) is connected with a pull rope part (61), and the other end of the pull rope part (61) is fixedly connected to the middle part of the elastic plate (5); Further comprising a bead (7) sleeved on the pull rope part (61), the pull rope part (61) is provided with a knot (62) for axially limiting the bead (7), and the elastic plate (5) makes the bead (7) located in the spherical cavity (24) provided in the flexible bearing block (2).

2. The heat dissipation structure of the full-pack cable clamp of the low voltage switchgear according to claim 1, characterized in that, Further comprising a swing strip (8) symmetrically arranged on the compression seat (31), the base (1) is provided with an arc-shaped abutting surface (112), the swing strip (8) moves with the compression seat (31) to make the end of the swing strip (8) contact the abutting surface (112), and the swing strip (8) swings to close the compression slot (311).

3. The heat dissipating structure of the full-pack cable clamp of the low voltage switchgear according to claim 2, characterized in that, The swing strip (8) is provided with a protruding part (81), and the swing strip (8) is driven to rotate to make the protruding part (81) press the end of the elastic plate (5).

4. The heat dissipating structure of the full-pack cable clamp of the low voltage switchgear according to claim 1, wherein, The compression seat (31) is symmetrically provided with a wind guide plate (312) coaxially arranged with the compression slot (311).

5. The heat dissipating structure of the full-pack cable clamp of the low voltage switchgear according to claim 1, wherein, Further comprising a driving rod (32) threadedly arranged on the base (1), the first end of the driving rod (32) is provided with a rotating part (321), and the rotating part (321) is rotatably connected in the connecting part (313) fixedly arranged on the compression seat (31).

Images