Solid-sealed polar pole

Abstract

The utility model provides a solid-sealed polar pole which comprises a shell, an arc extinguish chamber located in the shell, an upper conductor and a lower conductor which are arranged on the shell and located at the upper end and the lower end of the arc extinguish chamber, an insulating pull rod located below the arc extinguish chamber, a flexible connection assembly and a heat dissipation block. The top end of the insulating pull rod is inserted into the movable end of the arc extinguish chamber and is in sliding fit with the arc extinguish chamber, the movable end of the arc extinguish chamber is sleeved with a conductive sliding block, the top end of the insulating pull rod is sleeved with the heat dissipation block, the heat dissipation block is located below the conductive sliding block, and the heat dissipation block is connected to a lower conductor through the flexible connection assembly. The LED lamp is suitable for small current, good in heat dissipation effect and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a sealed pole. Background Art

[0002] The sealed pole is formed by embedding the vacuum arc chamber and the conductive parts related to the circuit breaker into easily solidified solid insulating materials such as epoxy resin or thermoplastic materials, so that the entire circuit breaker pole becomes an integral component. The existing sealed pole includes a shell, a heat sink above the shell, an arc chamber located in the shell, an upper conductor at the upper and lower ends of the arc chamber, a lower conductor, a conductive slider located in the lower conductor, and an insulating pull rod connected to the lower end of the lower conductor. The heat sink is arranged outside the shell, which affects the aesthetic appearance. In addition, the existing sealed pole is suitable for large currents. When used for small currents, it will lead to high use costs, poor heat dissipation effects, and inconvenient installation. Utility Model Content

[0003] Based on the above problems, the purpose of the utility model is to provide a sealed pole which is suitable for small currents, has good heat dissipation effect and is easy to assemble.

[0004] In view of the above problems, the following technical solutions are provided: a sealed pole, comprising a shell, an arc extinguishing chamber located in the shell, an upper conductor and a lower conductor arranged on the shell at the upper and lower ends of the arc extinguishing chamber, and an insulating pull rod located below the arc extinguishing chamber, and also comprising a flexible connection assembly and a heat sink block, the upper conductor is conductively connected to the static end of the arc extinguishing chamber, the top end of the insulating pull rod is inserted into the moving end of the arc extinguishing chamber and slidably cooperates with the moving end of the arc extinguishing chamber, a conductive slider is sleeved on the outside of the moving end of the arc extinguishing chamber, the heat sink block is sleeved on the top end of the insulating pull rod and is located below the conductive slider, and the heat sink block is connected to the lower conductor through the flexible connection assembly.

[0005] In the above structure, the insulating pull rod is driven by the operating mechanism of the corresponding circuit breaker, and the insulating pull rod reciprocates in the up and down directions to realize the closing and opening operations of the arc extinguishing chamber. The utility model is suitable for small currents. By embedding the heat sink block in the shell, the heat generated during the operation of the utility model can be quickly transferred to the heat sink block for heat dissipation, thereby improving the heat dissipation effect of the utility model. By providing a soft connection component, the flexibility of the insulating pull rod in driving the heat sink block to move can be improved, thereby improving the reliability of the utility model. The heat sink block is connected to the shell through a soft connection, which is convenient for workers to assemble, thereby improving the assembly efficiency of the utility model.

[0006] The utility model is further configured that a heat dissipation fin is provided on a side of the heat dissipation block opposite to the lower conductor.

[0007] In the above structure, the heat dissipation effect of the heat dissipation block can be improved by providing the heat dissipation fins, thereby improving the safety and reliability of the utility model.

[0008] The utility model is further configured such that the flexible connection assembly includes a connecting plate and a pressure plate, one end of the connecting plate is connected to the lower conductor, and the other end is connected to the heat sink, connecting holes are provided at both ends of the pressure plate, and the pressure plate is connected to the lower conductor by bolts passing through the connecting holes to fix the outer end of the connecting plate.

[0009] The above structure can facilitate the installation of the flexible connection assembly and the heat sink, improving the convenience of assembly and the firmness of the structure of the utility model. The stability of the connection between the connecting piece and the lower conductor can be improved by setting the pressure plate, thereby improving the reliability of the utility model.

[0010] The utility model is further configured that the inner end of the connecting piece is provided with a through hole for the insulating pull rod to pass through, the connecting piece is provided with fixing holes on both sides of the through hole, and the heat dissipation block is provided with positioning holes corresponding to the fixing holes.

[0011] In the above structure, the connection piece is connected to the heat sink block by matching the bolts with the fixing holes and the positioning holes, thereby improving the convenience of assembly of the utility model.

[0012] The utility model is further configured that the soft connection components are provided with two groups, which are respectively located at the upper and lower ends of the heat dissipation block.

[0013] The above structure can improve the stability of the displacement of the heat sink block and enhance the reliability of the utility model.

[0014] The utility model is further configured that the conductive sliding block is provided with a screw hole corresponding to the fixing hole.

[0015] By adopting the above structure, the connecting piece, the heat sink block and the conductive slider can be connected by bolts, thereby improving the convenience of assembly of the utility model.

[0016] The utility model is further configured that a heat dissipation fin is provided on the outer wall of the shell on the same side as the heat dissipation fins, and the heat dissipation fin is extended from the top end of the shell to the bottom end of the shell.

[0017] In the above structure, the heat dissipation effect of the utility model can be improved by providing heat dissipation fins.

[0018] The utility model is further configured that at least two heat dissipation fins are arranged at intervals.

[0019] The above structure can further improve the heat dissipation effect of the present invention and improve the structural strength of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an existing sealed pole.

[0021] Figure 2 It is a structural schematic diagram of the utility model.

[0022] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0023] Figure 4 It is a schematic diagram of the split structure of the utility model.

[0024] Figure 5 It is a structural schematic diagram of the internal structure of the shell in the utility model.

[0025] The meaning of the numbers in the figure are as follows: 1-shell; 2-arc extinguishing chamber; 3-upper conductor; 4-lower conductor; 5-insulating pull rod; 6-flexible connection assembly; 7-heat sink block; 8-conductive slider; 71-heat sink fin; 61-connecting plate; 62-pressing plate; 621-connecting hole; 611-through hole; 612-fixing hole; 72-positioning hole; 81-screw hole; 11-heat sink fin. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, back...) in the embodiments of the utility model are only used to explain the relative position relationship and movement of the components under a certain posture (as shown in the attached drawings). If the specific posture changes, the directional indication will also change accordingly. The assembly connection relationship between the arc extinguishing chamber, the upper conductor and the lower conductor and the housing belongs to the prior art and will not be described in detail here.

[0028] like Figures 1 to 5 A sealed pole shown in the figure comprises a shell 1, an arc extinguishing chamber 2 located in the shell 1, an upper conductor 3 and a lower conductor 4 arranged on the shell 1 at the upper and lower ends of the arc extinguishing chamber 2, and an insulating pull rod 5 located below the arc extinguishing chamber 2, and also comprises a soft connection component 6 and a heat sink 7, wherein the upper conductor 3 is conductively connected to the static end of the arc extinguishing chamber 2, the top end of the insulating pull rod 5 is inserted into the moving end of the arc extinguishing chamber 2 and slidably cooperates with it, the moving end of the arc extinguishing chamber 2 is externally sleeved with a conductive slider 8, the heat sink 7 is sleeved on the top end of the insulating pull rod 5 and is located below the conductive slider 8, and the heat sink 7 is connected to the lower conductor 4 through the soft connection component 6.

[0029] In the above structure, the insulating pull rod 5 is driven by the operating mechanism of the corresponding circuit breaker, and the insulating pull rod 5 reciprocates in the up and down directions to realize the closing and opening operations of the arc extinguishing chamber 2. The utility model is suitable for small currents. By embedding the heat sink block 7 in the housing 1, the heat generated when the utility model is running can be quickly transferred to the heat sink block 7 for heat dissipation, thereby improving the heat dissipation effect of the utility model. By providing the soft connection component 6, the flexibility of the insulating pull rod 5 in driving the heat sink block 7 to move can be improved, thereby improving the reliability of the utility model. The heat sink block 7 is connected to the housing 1 through a soft connection, which is convenient for workers to assemble and improves the assembly efficiency of the utility model.

[0030] In this embodiment, a heat dissipation fin 71 is disposed on a side of the heat dissipation block 7 opposite to the lower conductor 4 .

[0031] In the above structure, the heat dissipation effect of the heat dissipation block 7 can be improved by providing the heat dissipation fins 71, thereby improving the safety and reliability of the utility model.

[0032] In this embodiment, the soft connection component 6 includes a connecting plate 61 and a pressure plate 62. One end of the connecting plate 61 is connected to the lower conductor 4, and the other end is connected to the heat sink 7. Connecting holes 621 are provided at both ends of the pressure plate 62. The pressure plate 62 is connected to the lower conductor 4 by bolts passing through the connecting holes 621 to fix the outer end of the connecting plate 61.

[0033] The above structure can facilitate the installation of the flexible connection assembly 6 and the heat sink 7, improving the convenience of assembly and the firmness of the structure of the utility model. The pressure plate 62 can improve the stability of the connection between the connecting piece 61 and the lower conductor 4, thereby improving the reliability of the utility model.

[0034] In this embodiment, a through hole 611 for the insulating pull rod 5 to pass through is formed at the inner end of the connecting piece 61, fixing holes 612 are formed on both sides of the through hole 611 on the connecting piece 61, and positioning holes 72 corresponding to the fixing holes 612 are formed on the heat dissipation block 7.

[0035] In the above structure, the connection sheet 61 is connected to the heat sink 7 by means of bolts, the fixing holes 612 and the positioning holes 72, thereby improving the convenience of assembly of the utility model.

[0036] In this embodiment, the soft connection components 6 are provided in two groups, which are respectively located at the upper and lower ends of the heat dissipation block 7 .

[0037] The above structure can improve the stability of the displacement of the heat sink 7 and improve the reliability of the utility model.

[0038] In this embodiment, a screw hole 81 corresponding to the fixing hole 612 is formed on the conductive slider 8 .

[0039] By adopting the above structure, the connecting piece 61, the heat sink block 7 and the conductive slider 8 can be connected by bolts, thereby improving the convenience of assembly of the utility model.

[0040] In this embodiment, a heat dissipation fin 11 is provided on the outer wall of the housing 1 on the same side as the heat dissipation fins 71 , and the heat dissipation fin 11 extends from the top end of the housing 1 to the bottom end of the housing 1 .

[0041] In the above structure, the heat dissipation effect of the utility model can be improved by providing the heat dissipation fins 11 .

[0042] In this embodiment, at least two heat dissipation fins 11 are arranged at intervals.

[0043] The above structure can further improve the heat dissipation effect of the present invention and improve the structural strength of the housing 1.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A sealed pole, comprising a shell, an arc extinguishing chamber in the shell, an upper conductor and a lower conductor arranged on the shell at the upper and lower ends of the arc extinguishing chamber, and an insulating pull rod located below the arc extinguishing chamber, characterized in that: It also includes a soft connection component and a heat sink block. The upper conductor is conductively connected to the static end of the arc extinguishing chamber. The top end of the insulating pull rod is inserted into the moving end of the arc extinguishing chamber and slidably cooperates with it. A conductive slider is sleeved on the outside of the moving end of the arc extinguishing chamber. The heat sink block is sleeved on the top end of the insulating pull rod and is located below the conductive slider. The heat sink block is connected to the lower conductor through the soft connection component.

2. The sealed pole according to claim 1, characterized in that: A heat dissipation fin is arranged on a side of the heat dissipation block opposite to the lower conductor.

3. The sealed pole according to claim 1, characterized in that: The flexible connection assembly includes a connecting plate and a pressing plate. One end of the connecting plate is connected to the lower conductor, and the other end is connected to the heat sink. Connecting holes are provided at both ends of the pressing plate. The pressing plate is connected to the lower conductor by bolts passing through the connecting holes to fix the outer end of the connecting plate.

4. The sealed pole according to claim 3, characterized in that: The inner end of the connecting piece is provided with a through hole for the insulating pull rod to pass through, the connecting piece is provided with fixing holes on both sides of the through hole, and the heat dissipation block is provided with positioning holes corresponding to the fixing holes.

5. The sealed pole according to claim 4, characterized in that: The soft connection components are provided with two groups, which are respectively located at the upper and lower ends of the heat dissipation block.

6. The sealed pole according to claim 5, characterized in that: The conductive sliding block is provided with screw holes corresponding to the fixing holes.

7. The sealed pole according to claim 2, characterized in that: A heat dissipation fin is arranged on the outer wall of the shell on the same side as the heat dissipation fins, and the heat dissipation fin is extended from the top end of the shell to the bottom end of the shell.

8. The sealed pole according to claim 7, characterized in that: At least two heat dissipation fins are arranged at intervals.

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