Silicone rubber insulated voltage transformer

Abstract

The present invention discloses a silicon rubber insulated voltage transformer, comprising a base plate, a ring-shaped iron core and a voltage transformer coil on the ring-shaped iron core, a metal bracket mounted on the voltage transformer coil, a support sleeve on the metal bracket with a silicon rubber jacket surrounding the iron core and the voltage transformer coil, the metal bracket comprising a shielding ring, a support arm and a connection post, the shielding ring being fixedly sleeved on the outside of the voltage transformer coil, the support arm extending integrally from the voltage transformer coil, a connection post being provided at the end thereof, the connection post passing through the silicon rubber jacket and electrically connected to the outside; the present invention adopts silicon rubber to make the jacket of the voltage transformer, in order to prevent the silicon rubber jacket from being deformed due to heat, a metal bracket is fixed outside the voltage transformer coil, the silicon rubber jacket is installed through the metal bracket and sleeves the voltage transformer coil and the iron core therein, replacing epoxy resin for insulation isolation, and effectively solving the harmfulness and pollution problems caused by epoxy resin.

Description

Technical Field

[0001] The present invention relates to a voltage transformer. Background Art

[0002] In the existing technology, voltage transformers are generally insulated with epoxy resin materials. However, since epoxy resin is carcinogenic and difficult to degrade, when the voltage transformer is scrapped and discarded, it will seriously pollute the environment and endanger human health. Therefore, it is necessary to find a method to replace epoxy resin materials to achieve voltage transformer insulation. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a voltage transformer capable of achieving insulation without using epoxy resin materials.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A silicone rubber insulated voltage transformer comprises a base plate, on which is provided an annular iron core and a voltage transformer coil sleeved on the annular iron core; a metal bracket is mounted on the voltage transformer coil; a silicone rubber jacket is sleeved on the metal bracket to surround the iron core and the voltage transformer coil; the metal bracket comprises a shielding collar, a support arm and a connection post; the shielding collar is fixedly sleeved on the outside of the voltage transformer coil; the support arm extends integrally from the voltage transformer coil; the connection post is provided at the end thereof; the connection post passes through the silicone rubber jacket and is electrically connected to the outside.

[0006] A silicone rubber insulation layer is sandwiched between the voltage transformer coil and the iron core.

[0007] The bottom of the iron core is provided with supporting feet which are connected and fixed to the bottom plate.

[0008] The silicone rubber outer shell is provided with an external wiring port.

[0009] The beneficial effects of the present invention are as follows: the present invention uses silicone rubber to make the outer jacket of the voltage transformer, and supports and installs it through a metal bracket fixed outside the voltage transformer coil, so that the voltage transformer coil and the iron core are sheathed inside, replacing epoxy resin to insulate and isolate the internal components of the voltage transformer, thereby solving the harmfulness and pollution problems caused by epoxy resin; on the other hand, the silicone rubber outer jacket is an independently processed component and is installed through the metal bracket. The outer jacket manufacturing process is simple, and the voltage transformer is easier to assemble. Compared with the generally cast and sealed voltage transformer, it can be disassembled and assembled, and the internal components can be repaired; and under the support of the metal bracket, the silicone rubber outer jacket can be effectively prevented from being deformed by heat after the voltage transformer coil is heated. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and examples.

[0011] Figure 1 It is a structural schematic diagram of the present invention;

[0012] Figure 2 is an internal perspective view of the present invention;

[0013] Figure 3 It is a schematic structural diagram of the internal components of the present invention. DETAILED DESCRIPTION

[0014] Reference Figures 1 to 3 A silicone rubber insulated voltage transformer includes a mounting base 1 for mounting a ring-shaped iron core 2, the base 1 being provided with a ring-shaped iron core 2 and a voltage transformer coil 3 sleeved on the ring-shaped iron core, the iron core 2 and the voltage transformer coil 3 being surrounded by a silicone rubber jacket 4, a metal bracket 5 being mounted on the voltage transformer coil 3, the metal bracket 5 comprising a collar 51, a support arm 52 and a connection post 53, the collar 51 being fixedly mounted on the outside of the voltage transformer coil 3, the support arm 52 extending integrally from the voltage transformer coil 3, the end of which being provided with a connection post 53, the connection post 53 serving as a primary terminal and passing through the silicone rubber jacket 4 for electrical connection, and the silicone rubber jacket 4 being mounted on the metal bracket 5 for installation.

[0015] The present invention uses silicone rubber to make the outer jacket of the voltage transformer, which is supported and installed by a metal bracket 5 to enclose the electrical components of the transformer to achieve insulation, and replaces epoxy resin to insulate and isolate the internal components of the voltage transformer, effectively solving the harmfulness and pollution problems caused by epoxy resin. On the other hand, the silicone rubber jacket 4 is an independently processed component and is installed through the metal bracket 5. The jacket manufacturing process is simple, and the assembly method of the voltage transformer is easier. Compared with the generally cast and sealed voltage transformer, it can be disassembled and assembled, and the internal components can be repaired; when the voltage transformer is working, the voltage transformer coil 3 will generate a certain amount of heat. Since the silicone rubber will deform due to heat, the metal bracket 5 can effectively separate the silicone rubber jacket 4 from the voltage transformer coil 3, avoiding the silicone rubber jacket 4 being deformed by heat and affecting the insulation effect.

[0016] As a preferred embodiment of the present invention, the insulating layer between the voltage transformer coil 3 and the iron core 2 is also made of silicone rubber. In addition, other insulating parts of the voltage transformer can be made of silicone rubber to completely replace the use of epoxy resin.

[0017] Preferably, a support foot 7 is provided at the bottom of the iron core 2, and the iron core is connected and fixed to the base plate 1 through the support foot 7, which facilitates the installation and arrangement of the iron core 2 and does not affect the copper wire turns of the iron core.

[0018] Preferably, the silicone rubber jacket 4 is provided with an external wiring port 41, which serves as a secondary wiring terminal and is electrically connected to the internal components of the voltage transformer through a wire. The user can directly connect the voltage transformer by connecting the external wiring port 41 for use, which is convenient and quick.

Claims

1. A silicon rubber insulated voltage transformer, comprising a base plate (1), a ring-shaped iron core (2) and a voltage transformer coil (3) sleeved on the ring-shaped iron core, characterized in that: A metal bracket (5) is mounted on the voltage transformer coil (3); a detachable support sleeve on the metal bracket (5) is provided with a silicone rubber jacket (4) to surround the iron core (2) and the voltage transformer coil (3); the metal bracket (5) comprises a shielding ring (51), a support arm (52) and a power connection post (53); the shielding ring (51) is fixedly sleeved on the outside of the voltage transformer coil (3); the support arm (52) extends integrally from the voltage transformer coil (3); the end of the support arm is provided with the power connection post (53); the power connection post (53) passes through the silicone rubber jacket (4) and is electrically connected to the outside.

2. The voltage transformer according to claim 1, characterized in that: A silicone rubber insulation layer (6) is sandwiched between the voltage transformer coil (3) and the iron core (2).

3. The voltage transformer according to claim 1, characterized in that: The bottom of the iron core (2) is provided with a supporting foot (7) which is connected and fixed to the bottom plate (1).

4. The voltage transformer according to claim 1, characterized in that: The silicone rubber outer shell (4) is provided with an external wiring port (41).

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