Heat dissipation structure of fully-wrapped cable clamp of low-voltage switchgear assembly

Abstract

The invention, which relates to the technical field of cable clamps, discloses a heat dissipation structure of a fully-wrapped cable clamp of a low-voltage switchgear assembly, comprising a base on which a flexible bearing block and a pressing seat are arranged, the flexible bearing block is fixedly provided with an arching part, the arching part is provided with an arc-shaped placing groove, and the pressing seat is provided with a clamping groove. And heat conduction strips which are distributed in a circumferential array are fixedly arranged in the placement groove. According to the heat dissipation structure of the fully-wrapped cable clamp of the low-voltage complete switch equipment, the pressing seat slides to be close to the flexible bearing block, the pressing seat moves to extrude the cable to be located in the placing groove, the pressing seat further extrudes the arched part to deform so as to be attached to the side face of the cable, and fully-wrapped fixing and limiting of the cable are completed; at the moment, the heat conduction strips in the placement grooves axially abut against the peripheral sides of the cables, and then the heat conduction strips are used for conducting direct contact type heat dissipation on the cables, so that the heat dissipation efficiency of the wrapped cables is improved, and the problem that the cables are damaged due to high temperature due to the fact that heat generated on the cables is difficult to dissipate is solved.

Description

Technical Field

[0001] This invention relates to the field of cable clamp technology, specifically to a heat dissipation structure for a fully enclosed cable clamp of a low-voltage switchgear assembly. Background Art

[0002] As is well known, existing low-voltage switchgear typically uses component mounting rails on a backplate for installing electrical components, and the wiring is also laid out on the backplate simultaneously. Cable clamps are commonly used to organize and fix the cable lines.

[0003] For example, the invention patent with application publication number CN118712903A, application publication date of September 27, 2024, and titled "A High Voltage Switchgear for Easy Wiring", has a specific structure of a wire clamp assembly including a slider, a screw A threadedly installed on the top of the slider, a locking nut A threadedly connected to the outer side of the screw A, screws B threadedly installed on both sides of the slider, a fixing frame fixedly installed at the other end of the screw B, a silicone pad fixedly installed on the inner wall of the fixing frame, and deformation holes opened on the surface of the silicone pad.

[0004] The shortcoming of the existing technology is that the slider is used to press the cable into the deformation hole of the silicone pad, so that the silicone pad deforms and fits the periphery of the cable to form a full-enclosed protective limit. However, since the silicone pad directly contacts and wraps the cable, the heat generated by the cable during operation is difficult to dissipate, which leads to high temperature damage to the cable. Summary of the Invention

[0005] The purpose of this invention is to provide a heat dissipation structure for a fully enclosed cable clamp of a low-voltage switchgear assembly, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation structure for a fully enclosed cable clamp of a low-voltage switchgear assembly, comprising a base on which a flexible support block and a pressing seat slidably arranged relative to the flexible support block are disposed. A semi-cylindrical arched portion is fixedly disposed on the flexible support block, and an arc-shaped placement groove is opened on the arched portion. Heat-conducting strips distributed in a circumferential array are fixedly disposed in the placement groove.

[0007] As a further description of the above technical solution: the pressing seat is provided with a pressing groove, the bottom surface of the pressing groove is arc-shaped, and the arc of the bottom surface of the pressing groove is greater than the arc of the bottom surface of the placement groove.

[0008] As a further description of the above technical solution: it also includes an arc-shaped elastic plate, whose two ends are respectively fixedly connected to the movable cavity opened on the flexible support block, and the middle of the elastic plate arches towards the pressing groove in the default state.

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

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

[0011] As a further description of the above technical solution: it also includes a bead sleeved on the pull rope part, and the pull rope part is provided with a knot for axially limiting the bead. The elastic plate, in its default state, causes the bead to be located in a spherical cavity opened on the flexible support block.

[0012] As a further description of the above technical solution: it also includes a swing bar symmetrically rotated on the pressing seat, the base being provided with an arc-shaped contact surface, the swing bar following the movement of the pressing seat so that the end of the swing bar contacts the contact surface, and the swing bar swings closer to the pressing groove.

[0013] As a further description of the above technical solution: the swing bar is provided with a protrusion, and the swing bar is driven to rotate so that the protrusion presses against the end of the elastic plate.

[0014] As a further description of the above technical solution: the pressing seat is symmetrically provided with air guide plates arranged coaxially with the pressing groove.

[0015] As a further description of the above technical solution: it also includes a drive rod that is rotatably mounted on the base, and a rotating part is provided on the first end of the drive rod, which is rotatably connected to a connecting part fixedly mounted on the clamping seat.

[0016] In the above technical solution, the present invention provides a heat dissipation structure for a fully enclosed cable clamp of a low-voltage switchgear. The clamping seat slides close to the flexible support block, and the clamping seat moves to squeeze the cable into the placement groove. The clamping seat also squeezes and deforms the arched part to fit the side of the cable, thus completing the full-enclosed fixing and limiting of the cable. At this time, the heat-conducting strip in the placement groove also axially abuts against the periphery of the cable, thereby using the heat-conducting strip to directly dissipate heat from the cable, thereby improving the heat dissipation efficiency of the enclosed cable, avoiding the problem of high-temperature damage to the cable caused by the heat generated on the cable being difficult to dissipate, and improving the protection of the cable. Attached Figure Description

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the overall structure provided in an embodiment of the present invention; Figure 3 An exploded structural diagram of the base and drive rod provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the clamping seat and the swing bar provided in an embodiment of the present invention; Figure 5 A schematic diagram of the flexible support block, heat-conducting strip, and elastic plate provided in an embodiment of the present invention; Figure 6 This is an exploded structural diagram of the clamping seat and the swing bar provided in an embodiment of the present invention; Figure 7 An exploded structural diagram of the flexible support block, heat-conducting strip, and elastic plate provided in an embodiment of the present invention; Figure 8 Provided for embodiments of the present invention Figure 2 A magnified view of the local structure at point A in the diagram; Figure 9 This is a partial structural cross-sectional view of the flexible support block provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Base; 11. Mounting groove; 112. Contact surface; 13. Mounting part; 2. Flexible bearing block; 21. Arched part; 22. Placement groove; 221. Mounting groove; 23. Movable cavity; 24. Spherical cavity; 31. Pressing seat; 311. Pressing groove; 312. Air guide plate; 313. Connecting part; 314. Mounting hole; 32. Drive rod; 321. Rotating part; 322. Grip part; 4. Heat conduction strip; 5. Elastic plate; 6. Connecting rope; 61. Pull rope part; 62. Knot; 7. Bead; 8. Swing bar; 82. Rotating shaft; 81. Protrusion. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] Please see Figure 1-9 The present invention provides a technical solution including a base 1, on which a flexible support block 2 and a pressing seat 31 slidably arranged relative to the flexible support block 2 are provided. A semi-cylindrical arched part 21 is fixedly provided on the flexible support block 2. An arc-shaped placement groove 22 is opened on the arched part 21. Heat-conducting strips 4 distributed in a circumferential array are fixedly provided in the placement groove 22.

[0022] Preferred, such as Figure 1As shown, the clamping seat 31 is slidably disposed on the base 1, and the flexible bearing block 2 is fixedly disposed in the mounting groove 11 opened on the base 1 by adhesive. The flexible bearing block 2 has an arched part 21 on the side facing the clamping seat 31. The arched part 21 is integral with the flexible bearing block 2. A placement groove 22 facing the clamping seat 31 is opened on the arched part 21, so that several heat-conducting strips 4 are arranged at intervals in the arc-shaped bottom surface of the placement groove 22. When the cable is passed between the clamping seat 31 and the flexible support block 2, the cable can be placed in the placement groove 22 first, and the clamping seat 31 can be driven to slide close to the flexible support block 2. The clamping seat 31 moves and squeezes the cable into the placement groove 22, and the clamping seat 31 also squeezes the arched part 21 to deform to fit the side of the cable, thus completing the full-enclosed fixing and limiting of the cable. At this time, the heat-conducting strip 4 in the placement groove 22 also axially abuts against the periphery of the cable, thereby using the heat-conducting strip 4 to directly heat the cable, thereby improving the heat dissipation efficiency of the wrapped cable, avoiding the problem of high temperature damage to the cable caused by the heat generated on the cable being difficult to dissipate, and improving the protection of the cable.

[0023] In the above technical solution, the clamping seat 31 slides close to the flexible bearing block 2, and the clamping seat 31 moves to squeeze the cable into the placement groove 22. The clamping seat 31 also squeezes the arched part 21 to deform and fit the side of the cable, thus completing the full-enclosed fixing and limiting of the cable. At this time, the heat-conducting strip 4 in the placement groove 22 also axially abuts against the periphery of the cable, thereby using the heat-conducting strip 4 to directly dissipate heat from the cable, thereby improving the heat dissipation efficiency of the wrapped cable, avoiding the problem of high temperature damage to the cable caused by the heat generated on the cable being difficult to dissipate, and improving the protection of the cable.

[0024] In another embodiment of the present invention, a pressing groove 311 is provided on the pressing seat 31. The bottom surface of the pressing groove 311 is arc-shaped, and the arc of the bottom surface of the pressing groove 311 is greater than the arc of the bottom surface of the placement groove 22.

[0025] Preferred, such as Figure 2As shown, a clamping groove 311 is provided on the clamping seat 31, and the bottom curvature of the clamping groove 311 is greater than the bottom curvature of the placement groove 22. When the clamping seat 31 moves closer to the flexible support block 2, the top of the arched part 21 of the flexible support block 2 moves and extends into the clamping groove 311. As the clamping seat 31 gradually moves closer to the flexible support block 2, the top of the arched part 21 gradually contacts and deforms along the bottom surface of the clamping groove 311, thereby causing the arched part 21 to deform towards the side of the cable closer to the clamping groove 311. The guide on the arched part 21... The heat strip 4 is in contact with the periphery of the cable, so that the arched part 21 forms several gap cavities between the flexible support block 2 and the periphery of the cable during the deformation process. The gap cavities are connected at both ends along the axial direction of the cable, and the gap cavities and the heat strip 4 are distributed in a circumferential array. Thus, while the heat strip 4 and the flexible support block 2 are used to fully wrap and fix the cable, gap cavities for air circulation are also formed to further improve the heat dissipation efficiency of the fixed cable, avoid the problem of high temperature damage to the cable, and improve the protection of the cable.

[0026] In another embodiment of the present invention, an arc-shaped elastic plate 5 is further included, with its two ends fixedly connected to the movable cavity 23 opened on the flexible support block 2. In the default state, the middle part of the elastic plate 5 arches towards the pressing groove 311.

[0027] Preferred, such as Figure 8 As shown, the elastic plate 5 is arc-shaped, and its two ends are fixedly connected to the movable cavity 23, so that the two ends of the elastic plate 5 extend to the lateral ends of the arched portion 21. In the default state, the elastic plate 5 arches towards the pressing groove 311, thereby increasing the bearing capacity of the arched portion 21. When the pressing seat 31 moves closer to the flexible support block 2 to press the cable into the placement groove 22, the pressing seat 31 squeezes the cable, causing the cable to squeeze the middle of the arched portion 21 and the elastic plate 5. At this time, both sides of the arched portion 21 located between the cable and the elastic plate 5 are squeezed to increase the deformation speed of the arched portion 21. Because the middle of the elastic plate 5 is squeezed, the two ends of the elastic plate 5 deform away from each other to further apply the pressure of the deformation contraction placement groove 22 to the arched portion 21, thereby further improving the fixing stability of the arched portion 21 of the flexible support block 2 for the cable.

[0028] When clamping and limiting small-diameter cables, as the clamping seat 31 continues to move, the clamping seat 31 continuously presses the arched portion 21 against the elastic plate 5, causing the elastic plate 5 to deform until its middle part arches away from the placement groove 22. At this time, the pressure on the side of the arched portion 21 near the elastic plate 5 decreases, allowing the two sides of the arched portion 21 to further deform and compress the placement groove 22, thereby further improving the wrapping and protection of small-diameter cables. Furthermore, the presence of the elastic plate 5 enhances the clamping stability and applicability of the device for cables of different diameters.

[0029] In another embodiment of the present invention, a connecting rope 6 is further included, which is arranged in an arc shape to sequentially connect a plurality of heat-conducting strips 4.

[0030] Preferred, such as Figure 8 As shown, the heat-conducting strips 4 are connected to each other by connecting ropes 6, so that the heat-conducting strips 4 are flexibly connected by connecting ropes 6. As the clamping seat 31 gradually moves closer to the flexible support block 2, the top of the arched part 21 gradually contacts and deforms along the bottom surface of the clamping groove 311, causing the arched part 21 to deform towards the side of the cable closer to the clamping groove 311. Meanwhile, the heat-conducting strip 4 on the arched part 21 has come into contact with the periphery of the cable. As a result, during the deformation process, the arched part 21 forms several gap cavities between the flexible support block 2 and the periphery of the cable. The gap cavities and the heat-conducting strip 4 are distributed in a circumferential array. The presence of the connecting rope 6 makes the distribution of the heat-conducting strip 4 between the bottom surface of the placement groove 22 more uniform. When the clamping seat 31 and the flexible support block 2 complete the fixing and limiting of the cable, the presence of the connecting rope 6 makes the gap cavities formed by the arched part 21 more uniformly distributed along the circumference of the cable, thereby improving the heat dissipation efficiency and uniformity of the cable and avoiding the problem of high-temperature damage caused by local overheating of the cable.

[0031] In another embodiment of the present invention, a pull rope portion 61 is connected to the middle of the connecting rope 6, and the other end of the pull rope portion 61 is fixedly connected to the middle of the elastic plate 5.

[0032] Preferred, such as Figure 8 As shown, one end of the pull rope 61 is connected to the middle of the connecting rope 6, and the other end of the pull rope 61 is connected to the middle of the elastic plate 5. When the clamping seat 31 moves close to the flexible support block 2 to press the cable into the placement groove 22, the clamping seat 31 squeezes the cable and causes the cable to squeeze the arched part 21 and the middle of the elastic plate 5. The middle of the elastic plate 5 is squeezed, and the two ends of the elastic plate 5 deform away from each other to further apply the pressure of deformation contraction placement groove 22 to the arched part 21, thereby further improving the fixing stability of the cable by the arched part 21 of the flexible support block 2. As the clamping seat 31 continues to move, the clamping seat 31 continuously squeezes the arched part 21, causing the elastic plate 5 to deform and arch in the middle away from the placement groove 22. At the same time, the elastic plate 5 also pulls the connecting rope 6 towards the middle of the elastic plate 5 through the pull rope part 61, thereby pulling several heat-conducting strips 4 to squeeze the arched part 21 to deform and move closer together, thereby reducing the spacing between the heat-conducting strips 4. This results in a gap cavity with a smaller flow cross-sectional area being formed on the periphery of the small-diameter cable, thereby further improving the fixing stability of the small-diameter cable and avoiding the problem of the small-diameter cable loosening from the flexible support block 2 due to the excessively large periphery gap cavity.

[0033] In another embodiment of the present invention, a bead 7 is sleeved on the pull rope portion 61. A knot 62 is provided on the pull rope portion 61 to limit the axial position of the bead 7. In the default state, the elastic plate 5 causes the bead 7 to be located in the spherical cavity 24 opened on the flexible support block 2.

[0034] Preferred, such as Figure 8 As shown, the bead 7 is axially fixed to the pull rope portion 61 by the knot 62. When the elastic plate 5 is in the default state, the bead 7 is located in the spherical cavity 24. When the clamping seat 31 moves close to the flexible bearing block 2 to clamp the cable in the placement groove 22, the clamping seat 31 squeezes the cable and causes the cable to squeeze the arched portion 21 and the middle of the elastic plate 5. The middle of the elastic plate 5 is squeezed, and the two ends of the elastic plate 5 deform away from each other to further apply the pressure of deformation contraction placement groove 22 to the arched portion 21. The bead 7 is located between the placement groove 22 and the elastic plate 5 to further improve the bearing capacity of the arched portion 21.

[0035] As the clamping seat 31 continues to move, the clamping seat 31 continuously squeezes the arched part 21, causing the elastic plate 5 to deform and arch towards the middle of the placement groove 22. At the same time, the elastic plate 5 also pulls the connecting rope 6 towards the middle of the elastic plate 5 through the pull rope part 61, thereby pulling several heat-conducting strips 4 to squeeze the arched part 21 to deform and move closer together, thereby reducing the spacing between the heat-conducting strips 4. This results in a gap cavity with a smaller flow cross-sectional area being formed on the periphery of the small-diameter cable. At the same time, the bead 7 is pulled out of the spherical cavity 24 and enters the active cavity 23 by the elastic plate 5. The air pressure in the spherical cavity 24 is momentarily small, so that the mounting groove 221 in the placement groove 22 has a negative pressure suction force, which allows the heat-conducting strip 4 to fit more tightly on the periphery of the cable, improving the heat dissipation efficiency and fixing stability of the cable.

[0036] As the clamping seat 31 continues to move and compress the cable and the arched portion 21, the arched portion 21 continues to deform and adhere to the elastic plate 5. The beads 7 are then compressed again and enter the spherical cavity 24 from the movable cavity 23, thus forcing the gas in the spherical cavity 24 into the placement groove 22. This increases the cross-sectional flow area of ​​the several gap cavities formed between the flexible support block 2 and the periphery of the cable. This avoids the problem of reduced cross-sectional flow area due to compression of the several gap cavities formed between the flexible support block 2 and the periphery of the cable during the deformation of the arched portion 21.

[0037] In another embodiment of the present invention, a swing bar 8 is symmetrically rotated on the pressing seat 31. The base 1 is provided with an arc-shaped contact surface 112. The swing bar 8 moves with the pressing seat 31 so that the end of the swing bar 8 contacts the contact surface 112, and the swing bar 8 swings closer to the pressing groove 311.

[0038] Preferably, the swing bar 8 is provided with a rotating shaft 82, which is rotatably disposed in the mounting hole 314 opened on the clamping seat 31. In the default state, the swing bar 8 is tilted towards the contact surface 112. When the clamping seat 31 moves closer to the flexible support block 2 to fix the cable, the swing bar 8 moves synchronously with the clamping seat 31 to approach the contact surface 112, and the end of the swing bar 8 moves against the contact surface 112. At this time, the swing bar 8 gradually swings closer to the clamping groove 311 as the clamping seat 31 moves, so that the end of the swing bar 8 can swing to support the bottom of the cable and support the part of the cable not clamped by the flexible support block 2 away from the base 1, thereby avoiding the damage caused by the un-wrapped part of the cable contacting and rubbing against the base 1.

[0039] A worm spring is provided inside the clamping seat 31 to drive the swing bar 8 to swing back to the default state.

[0040] In another embodiment of the present invention, a protrusion 81 is provided on the swing bar 8, and the swing bar 8 is driven to rotate so that the protrusion 81 presses the end of the elastic plate 5.

[0041] Preferred, such as Figure 8 As shown, a protrusion 81 is provided on the swing bar 8. When the swing bar 8 moves with the pressure seat 31, it gradually swings closer to the pressure groove 311, so that the end of the swing bar 8 can swing to support the bottom of the cable and support the part of the cable not held by the flexible bearing block 2 away from the base 1. The protrusion 81 of the swing bar 8 also moves to abut the end of the elastic plate 5, so that the elastic plate 5 is further deformed and the middle arches up, thereby further improving the support force and deformation pressure of the elastic plate 5 on the arched part 21, and realizing the improvement of the stability of the arched part 21 in limiting the cable wrapping.

[0042] In another embodiment of the present invention, the pressing seat 31 is symmetrically provided with air guide plates 312 arranged coaxially with the pressing groove 311.

[0043] Preferably, the clamping seat 31 is symmetrically provided with air guide plates 312 arranged coaxially with the clamping groove 311. Since active heat dissipation equipment is often installed in the switchgear cabinet, the air guide plates 312 can be used to guide the airflow blown out by the active heat dissipation equipment into the clamping groove 311, thereby further improving the heat dissipation efficiency of the clamping groove 311 and the cables in the placement groove 22.

[0044] In another embodiment of the present invention, a drive rod 32 is rotatably mounted on the base 1. A rotating part 321 is provided on the first end of the drive rod 32. The rotating part 321 is rotatably connected to the connecting part 313 fixedly mounted on the clamping seat 31.

[0045] Preferred, such as Figure 3As shown, the lower end of the drive rod 32 is the first end, and the upper end is the second end. The first end of the drive rod 32 is provided with a rotating part 321, and the second end is provided with a gripping part 322. The rotating part 321 is rotatably connected to the connecting part 313 of the pressing seat 31, and the drive rod 32 is threadedly rotatably connected to the mounting part 13 of the base 1. The drive rod 32 can be rotated by the gripping part 322, thereby driving the pressing seat 31 to move closer to the flexible bearing block 2, realizing the movement of the pressing seat 31 relative to the flexible bearing block 2, which is convenient for practical use.

[0046] Working principle: When passing the cable between the clamping seat 31 and the flexible support block 2, the cable can first be placed in the placement groove 22, and the clamping seat 31 can be driven to slide closer to the flexible support block 2. The clamping seat 31 moves and squeezes the cable into the placement groove 22, and the clamping seat 31 also squeezes the arched part 21 to deform to fit the side of the cable. The top of the arched part 21 of the flexible support block 2 moves and extends into the clamping groove 311. As the clamping seat 31 gradually moves closer to the flexible support block 2, the top of the arched part 21 gradually contacts and moves and deforms along the bottom surface of the clamping groove 311, thereby causing the arched part 21 to deform towards the side of the cable closer to the clamping groove 311. The heat-conducting strip 4 on the arched part 21 has already abutted against the periphery of the cable, so that the arched part 21 forms several gap cavities between the flexible support block 2 and the periphery of the cable during the deformation process. The clamping seat 31 squeezes the cable and causes the cable to squeeze the arched part 21 and the elastic plate 5. In the middle, the arched portion 21 located between the cable and the elastic plate 5 is compressed on both sides to increase the deformation rate of the arched portion 21. When clamping and limiting small-diameter cables, as the clamping seat 31 continues to move, the clamping seat 31 squeezes the arched part 21 to continuously squeeze the elastic plate 5, and causes the elastic plate 5 to deform to the middle part arching away from the placement groove 22. At this time, the pressure on the side of the arched part 21 close to the elastic plate 5 is reduced, and the two sides of the arched part 21 can further deform to squeeze and shrink the placement groove 22. As the clamping seat 31 continues to move, the clamping seat 31 continuously compresses the arched portion 21 of the elastic plate 5, causing the elastic plate 5 to deform until its middle part arches away from the placement groove 22. At the same time, the elastic plate 5 is also pulled closer to the center of the elastic plate 5 by the pull rope portion 61 to the connecting rope 6, thereby pulling several heat-conducting strips 4 to deform and move closer together, thereby reducing the spacing between the heat-conducting strips 4, so that a gap cavity with a smaller flow cross-sectional area is formed around the small-diameter cable. At the same time, the bead 7 is pulled out of the spherical cavity 24 by the elastic plate 5 and enters the active cavity. Inside cavity 23, the air pressure inside spherical cavity 24 is momentarily lower, so that the mounting groove 221 inside placement groove 22 has negative pressure suction, thereby allowing the heat-conducting strip 4 to fit more tightly against the periphery of the cable. When the pressing seat 31 continues to move and squeeze the cable and the arched part 21, the arched part 21 continues to deform and fit against the elastic plate 5, and the bead 7 is squeezed again and enters the spherical cavity 24 from the movable cavity 23, so that the gas in the spherical cavity 24 is squeezed into the placement groove 22, thereby increasing the cross-sectional flow area of ​​the several gap cavities formed between the flexible bearing block 2 and the periphery of the cable.

[0047] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat dissipation structure for a fully enclosed cable clamp of a low-voltage switchgear assembly, comprising a base (1) on which a flexible support block (2) is disposed and a clamping seat (31) slidably arranged relative to the flexible support block (2), characterized in that, The flexible support block (2) is fixedly provided with a semi-cylindrical arched part (21), and an arc-shaped placement groove (22) is provided on the arched part (21). A heat-conducting strip (4) arranged in a circular array is fixedly provided in the placement groove (22).

2. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 1, characterized in that, The clamping seat (31) has a clamping groove (311) with an arc-shaped bottom surface and the arc of the bottom surface of the clamping groove (311) is greater than the arc of the bottom surface of the placement groove (22).

3. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 2, characterized in that, It also includes an arc-shaped elastic plate (5), whose two ends are fixedly connected to the movable cavity (23) opened on the flexible support block (2). In the default state, the middle part of the elastic plate (5) arches towards the pressing groove (311).

4. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 3, characterized in that, It also includes connecting ropes (6) arranged in an arc shape to sequentially connect several of the heat-conducting strips (4).

5. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 4, characterized in that, The middle part of the connecting rope (6) is connected to 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).

6. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 5, characterized in that, It also includes a bead (7) sleeved on the pull rope part (61), and the pull rope part (61) is provided with a knot (62) for axially limiting the bead (7). The elastic plate (5) in the default state allows the bead (7) to be located in the spherical cavity (24) opened on the flexible support block (2).

7. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 3, characterized in that, It also includes a swing bar (8) symmetrically rotated on the pressure seat (31), and the base (1) is provided with an arc-shaped contact surface (112). The swing bar (8) moves with the pressure seat (31) so that the end of the swing bar (8) contacts the contact surface (112), and the swing bar (8) swings and approaches the pressure groove (311).

8. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 7, characterized in that, The swing bar (8) is provided with a protrusion (81), and the swing bar (8) is driven to rotate so that the protrusion (81) presses the end of the elastic plate (5).

9. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 2, characterized in that, The pressing seat (31) is symmetrically provided with air guide plates (312) arranged coaxially with the pressing groove (311).

10. The heat dissipation structure of the fully enclosed cable clamp for low-voltage switchgear according to claim 1, characterized in that, It also includes a drive rod (32) that is rotatably mounted on the base (1) with a thread. The first end of the drive rod (32) is provided with a rotating part (321), which is rotatably connected to the connecting part (313) that is fixedly mounted on the clamping seat (31).

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