A type of iron core sheath

Abstract

This utility model discloses a core sheath, including an iron core, a shaft, a first bushing, a second bushing, a copper ring, an insulation component, and a heat insulation component. The shaft is coaxially fixedly installed on the iron core. The first and second bushings are coaxially arranged with the shaft and located on opposite sides of the iron core, respectively. The copper ring is fixedly installed on the first bushing. The insulation component is disposed on the copper ring. The heat insulation component is disposed between the insulation component and the first bushing to reduce heat transfer between the iron core and the first bushing. This utility model can block heat conduction between the first bushing and the copper ring, preventing the thermosetting powder of the insulation component from falling off due to insufficient curing temperature, thus ensuring the insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a core sheath. Background Technology

[0002] In the field of iron core winding, an insulating layer needs to be coated on the surface of relevant iron core components to ensure insulation performance. This is usually assisted by a fixture with a sheath. In the existing technology, the bushing of the fixture sheath is mostly made of copper, which has a high thermal conductivity.

[0003] When thermosetting insulating powder is coated onto the copper ring of the iron core and cured at high temperature, the copper bushing will quickly conduct heat from the copper ring, making it difficult to maintain the temperature of the copper ring at a level that allows the insulating powder to cure fully. This results in the insulating powder failing to cure or curing insufficiently, causing it to fall off. Ultimately, this leads to poor insulation after the iron core is wound, affecting the performance of the iron core product. Utility Model Content

[0004] In order to solve the technical problems existing in the background art, this utility model proposes an iron core sheath.

[0005] This utility model proposes a core sheath, comprising an iron core, a shaft, a first bushing, a second bushing, a copper ring, an insulation component, and a heat insulation component; the shaft is coaxially fixedly installed on the iron core; the first bushing and the second bushing are coaxially arranged with the shaft and are respectively located on both sides of the iron core; the copper ring is fixedly installed on the first bushing; the insulation component is disposed on the copper ring; the heat insulation component is disposed between the insulation component and the first bushing to reduce heat transfer between the iron core and the first bushing.

[0006] Preferably, the insulating component is a ring-shaped assembly made of thermosetting powder that has been cured at high temperature and partially covers the outer surface of a copper ring.

[0007] Preferably, the thermosetting powder is an epoxy resin-based thermosetting insulating powder.

[0008] Preferably, the annular assembly covers the outside of the copper ring to form insulation between the enameled wire and the copper ring after the enameled wire is wound around the outer wall of the iron core.

[0009] Preferably, the thermal insulation component is a Teflon sleeve fitted onto the first bushing, with the end of the Teflon sleeve abutting against the copper ring.

[0010] Preferably, the thermal conductivity of the Teflon sheath is lower than that of the first bushing.

[0011] Preferably, both the first bushing and the second bushing are made of copper.

[0012] The iron core sheath proposed in this utility model has the following advantages: the heat insulation component blocks heat conduction between the first bushing and the copper ring, preventing the thermosetting powder of the insulation component from falling off due to insufficient temperature and poor curing, thus ensuring the insulation effect. The insulation component forms insulation between the enameled wire and the copper ring, preventing direct contact between the two. At the same time, the components are arranged coaxially to ensure structural stability during iron core processing. Attached Figure Description

[0013] Figure 1 This is an overall structural diagram of a core sheath proposed in this utility model;

[0014] Figure 2 This is a diagram showing the internal structure of an iron core sheath proposed in this utility model. Detailed Implementation

[0015] refer to Figure 1-2 This utility model proposes a core sheath, comprising: an iron core 1, a shaft 2, a first bushing 3, a second bushing 7, a copper ring 4, an insulation component 5, and a heat insulation component 6.

[0016] Shaft 2 is coaxially fixedly installed on iron core 1. Shaft 2 provides an installation reference for first bushing 3 and second bushing 7, ensuring that all components are coaxially arranged around iron core 1. First bushing 3 and second bushing 7 are coaxially arranged with shaft 2 and located on both sides of iron core 1, respectively. Both first bushing 3 and second bushing 7 are made of copper and together support iron core 1, positioning copper ring 4, and insulation component 5, ensuring that iron core 1 maintains structural stability during the coating of insulation layer and subsequent winding process.

[0017] The copper ring 4 is fixedly installed on the first bushing 3. The copper ring 4 and the first bushing 3 are fixedly connected and can be assembled by welding or interference fit. The copper ring 4 is used to cooperate with the insulation component 5 to provide an insulation fit base for the enameled wire on the outer wall of the iron core 1.

[0018] An insulating component 5 is disposed on the copper ring 4. The insulating component 5 is a ring-shaped kit that is formed by curing thermosetting powder at high temperature and partially covering the outer surface of the copper ring 4. The thermosetting powder is an epoxy resin-based thermosetting insulating powder. This type of powder can form a stable insulating structure after high temperature curing. The ring-shaped kit covers the outside of the copper ring 4 so that after the enameled wire is wound around the outer wall of the iron core 1, insulation is formed between the enameled wire and the copper ring 4, avoiding the insulation failure problem caused by direct contact between the enameled wire and the copper ring 4.

[0019] A thermal insulation component 6 is disposed between the insulation component 5 and the first bushing 3 to reduce heat transfer between the iron core 1 and the first bushing 3. The thermal insulation component 6 is a Teflon sleeve fitted onto the first bushing 3, with its end abutting against the copper ring 4. This end abutment structure ensures that the thermal insulation component 6 is fixed in position on the first bushing 3, preventing assembly misalignment from affecting the thermal insulation effect. The thermal conductivity of the Teflon sleeve is lower than that of the first bushing 3. Since the first bushing 3 is made of metallic copper, which has a higher thermal conductivity, the Teflon sleeve can block heat conduction between the first bushing 3 and the copper ring 4. This prevents the temperature of the copper ring 4 from dropping due to heat conduction to the first bushing 3 during the coating of the insulation layer on the iron core 1. Consequently, it avoids the problem of the thermosetting powder of the insulation component 5 falling off due to insufficient temperature or incomplete curing, ensuring that the insulation component 5 is stably attached to the surface of the copper ring 4.

Claims

1. A core sheath, characterized in that, It includes an iron core (1), a shaft (2), a first bushing (3), a second bushing (7), a copper ring (4), an insulation component (5), and a heat insulation component (6); the shaft (2) is coaxially fixedly installed on the iron core (1); the first bushing (3) and the second bushing (7) are coaxially arranged with the shaft (2) and are located on both sides of the iron core (1); the copper ring (4) is fixedly installed on the first bushing (3); the insulation component (5) is set on the copper ring (4); the heat insulation component (6) is set between the insulation component (5) and the first bushing (3) to reduce the heat transfer between the iron core (1) and the first bushing (3).

2. The iron core sheath according to claim 1, characterized in that, The insulating component (5) is a ring-shaped kit that is made of thermosetting powder that has been cured at high temperature and partially covers the outer surface of the copper ring (4).

3. A core sheath according to claim 2, characterized in that, The thermosetting powder is an epoxy resin-based thermosetting insulating powder.

4. A core sheath according to claim 2, characterized in that, The ring-shaped kit covers the outside of the copper ring (4) to form insulation between the enameled wire and the copper ring (4) after the enameled wire is wound around the outer wall of the iron core (1).

5. A core sheath according to claim 2, characterized in that, The thermal insulation component (6) is a Teflon sleeve fitted onto the first bushing (3), with the end of the Teflon sleeve abutting against the copper ring (4).

6. A core sheath according to claim 5, characterized in that, The thermal conductivity of the Teflon sheath is lower than that of the first bushing (3).

7. A core sheath according to claim 1, characterized in that, Both the first bushing (3) and the second bushing (7) are made of copper.

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