Encapsulated transformer with temperature protection switch

Abstract

The utility model relates to the technical field of transformers, in particular to an encapsulated transformer with a temperature protection switch, which comprises a framework, a primary winding and a secondary winding are mounted on the framework, a bridge plate is mounted at the top end of the framework, and the framework is provided with a first binding post and a second binding post which are used for connecting an input end and an output end of the primary winding. The bridge plate is provided with a first temperature protection switch and a second temperature protection switch, the first temperature protection switch is connected between the first binding post and the second binding post through a lead, and the second temperature protection switch is connected between the first binding post and the second binding post through a lead. The second temperature protection switch is connected between the third binding post and the fourth binding post through a lead; the first temperature protection switch and the second temperature protection switch are connected with the primary winding and the secondary winding respectively, when the temperature of the transformer is out of control, the windings are disconnected through the temperature protection switches, and use safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer with a temperature protection switch for potting tape. Background Art

[0002] A transformer is an electrical component often used in circuits, and its main functions include voltage transformation, impedance transformation, current transformation, isolation, etc. In modern society, there are relatively high requirements for the flame retardancy, sealing, moisture resistance, dust resistance and safety of transformers. Electric shock and fire accidents caused by safety defects of transformers during the use of electrical appliances have become a problem that poses a great threat to people's lives and property. How to improve the safety of transformers has become a difficult problem that needs to be solved urgently. Content of the Utility Model

[0003] The purpose of the utility model is to provide a transformer with a temperature protection switch for potting tape, which solves the problem of the safe use of transformers.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A transformer with a temperature protection switch for potting tape, including a skeleton, on which a primary winding and a secondary winding are installed. A bridge plate is installed at the top of the skeleton. The skeleton is provided with a first terminal and a second terminal for connecting the input end and the output end of the primary winding, and a third terminal and a fourth terminal for connecting the output end and the output end of the secondary winding. The bridge plate is provided with a first temperature protection switch and a second temperature protection switch. The first temperature protection switch is connected between the first terminal and the second terminal through a lead wire, and the second temperature protection switch is connected between the third terminal and the fourth terminal through a lead wire.

[0005] By adopting the above technical solution: The skeleton is provided with terminals for the primary winding and the secondary winding. The bridge plate can be used to install temperature protection switches, and the first temperature protection switch and the second temperature protection switch are respectively connected to the primary winding and the secondary winding. When the temperature of the transformer gets out of control, the windings are disconnected through each temperature protection switch to ensure safe use.

[0006] Insulating tape is wound on the bridge plate, and both the first temperature protection switch and the second temperature protection switch are wrapped by the insulating tape.

[0007] By adopting the above technical solution: The insulating effect is ensured by winding insulating tape, thereby ensuring the reliability of the temperature protection switch.

[0008] The skeleton is provided with a fifth terminal and a sixth terminal. The fifth terminal is arranged between the first terminal and the second terminal. One end lead of the first temperature protection switch is connected to the first terminal, and the other end lead is connected to the fifth terminal. One end lead of the second temperature protection switch is connected to the third terminal, and the other end lead is connected to the sixth terminal.

[0009] By adopting the above technical solution: The fifth terminal and the sixth terminal are set as intermediate terminals, which facilitates the installation of the first temperature protection switch and the second temperature protection switch.

[0010] It further includes a housing for the installation of the skeleton. The skeleton is provided with an iron core, and potting glue is filled in the skeleton and the housing.

[0011] By adopting the above technical solution: The housing is used to encapsulate the transformer, and the heat conduction transfer of the transformer is realized by filling potting glue in the housing, improving the heat dissipation effect of the transformer.

[0012] A spiral cooling channel is opened on the housing. A water injection port connected to the cooling channel is provided at the top end of the housing, and a water outlet connected to the cooling channel is provided at the bottom of the housing.

[0013] By adopting the above technical solution: The cooling channel is spirally opened on the housing, which is used to exchange heat with the transformer, improving the heat dissipation effect of the transformer.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. In this solution, terminals for the primary winding and the secondary winding are provided on the skeleton. The temperature protection switch can be installed through the bridge plate, and the first temperature protection switch and the second temperature protection switch are respectively connected to the primary winding and the secondary winding. When the temperature of the transformer gets out of control, the windings are disconnected through each temperature protection switch to ensure the use safety.

[0016] 2. In this solution, the insulation effect is ensured by winding insulating tape, thus ensuring the reliability of the temperature protection switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of the transformer with potting tape temperature protection switch provided by the present utility model;

[0018] Figure 2 It is a sectional view of the transformer with potting tape temperature protection switch provided by the present utility model;

[0019] Figure 3 It is a top view of the transformer with potting tape temperature protection switch provided by the present utility model.

[0020] Reference Numerals: 1, skeleton; 2, iron core; 3, primary winding; 4, secondary winding; 5, bridge plate; 6, potting compound; 7, housing; 8, cooling channel; 9, water injection port; 10, water outlet; 11, first temperature protection switch; 12, second temperature protection switch; 13, first terminal; 14, second terminal; 15, third terminal; 16, fourth terminal; 17, fifth terminal; 18, sixth terminal. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment

[0023] This embodiment provides a transformer with a temperature protection switch for a potting tape as shown in Figure 1 which includes a skeleton 1, on which a primary winding 3 and a secondary winding 4 are installed. A bridge plate 5 is installed at the top of the skeleton 1. The skeleton 1 is provided with a first terminal 13 and a second terminal 14 for connecting the input end and the output end of the primary winding 3, and a third terminal 15 and a fourth terminal 16 for connecting the output ends of the secondary winding 4. The bridge plate 5 is provided with a first temperature protection switch 11 and a second temperature protection switch 12. The first temperature protection switch 11 is connected between the first terminal 13 and the second terminal 14 through a lead, and the second temperature protection switch 12 is connected between the third terminal 15 and the fourth terminal 16 through a lead.

[0024] It can be seen that the skeleton 1 is provided with terminals for the primary winding 3 and the secondary winding 4. The temperature protection switches can be installed through the bridge plate 5, and the first temperature protection switch 11 and the second temperature protection switch 12 are respectively connected to the primary winding 3 and the secondary winding 4. When the temperature of the transformer gets out of control, the windings are disconnected through the respective temperature protection switches to ensure the safety of use.

[0025] Furthermore, an insulating tape is wound around the bridge plate 5 of this embodiment, and both the first temperature protection switch 11 and the second temperature protection switch 12 are wrapped by the insulating tape. By winding the insulating tape, the insulation effect is ensured, thereby ensuring the reliability of the temperature protection switch.

[0026] In one embodiment, as shown in Figure 2 and Figure 3As shown, a fifth terminal 17 and a sixth terminal 18 are provided on the skeleton 1. The fifth terminal 17 is arranged between the first terminal 13 and the second terminal 14. One lead of the first temperature protection switch 11 is connected to the first terminal 13, and the other lead is connected to the fifth terminal 17. One lead of the second temperature protection switch 12 is connected to the third terminal 15, and the other lead is connected to the sixth terminal 18. In this embodiment, by setting the fifth terminal 17 and the sixth terminal 18 as intermediate terminals, it is convenient for the installation of the first temperature protection switch 11 and the second temperature protection switch 12.

[0027] Furthermore, this embodiment also includes a housing 7 for installing the skeleton 1. An iron core 2 is installed on the skeleton 1, and potting glue 6 is filled in the skeleton 1 and the housing 7. The housing 7 is used to encapsulate the transformer, and the heat conduction transfer of the transformer is realized by filling potting glue 6 in the housing 7, improving the heat dissipation effect of the transformer.

[0028] In another embodiment, a spiral cooling channel 8 is opened on the housing 7. A water injection port 9 connected to the cooling channel 8 is provided at the top of the housing 7, and a water outlet 10 connected to the cooling channel 8 is provided at the bottom of the housing 7. The cooling channel 8 is spirally opened on the housing 7 and is used to exchange heat with the transformer, improving the heat dissipation effect of the transformer.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A potted transformer with a temperature protection switch, comprising a frame (1), on which a primary winding (3) and a secondary winding (4) are mounted, characterized in that: A bridge plate (5) is installed at the top of the frame (1). The frame (1) has a first terminal (13) and a second terminal (14) for connecting the input end and the output end of the primary winding (3), and a third terminal (15) and a fourth terminal (16) for connecting the output end and the output end of the secondary winding (4). The bridge plate (5) has a first temperature protection switch (11) and a second temperature protection switch (12). The first temperature protection switch (11) is connected between the first terminal (13) and the second terminal (14) through a lead wire, and the second temperature protection switch (12) is connected between the third terminal (15) and the fourth terminal (16) through a lead wire.

2. A potted transformer with a temperature protection switch as claimed in claim 1, characterized in that: The bridge plate (5) is wrapped with insulating tape, and the first temperature protection switch (11) and the second temperature protection switch (12) are both wrapped with the insulating tape.

3. A potted transformer with a temperature protection switch as claimed in claim 2, characterized in that: The skeleton (1) is provided with a fifth terminal (17) and a sixth terminal (18); the fifth terminal (17) is provided between the first terminal (13) and the second terminal (14); one end of the lead of the first temperature protection switch (11) is connected to the first terminal (13), and the other end of the lead is connected to the fifth terminal (17); one end of the lead of the second temperature protection switch (12) is connected to the third terminal (15), and the other end of the lead is connected to the sixth terminal (18).

4. A potted transformer with a temperature protection switch as claimed in claim 3, characterized in that: It also includes a shell (7) for installing the frame (1), an iron core (2) is installed on the frame (1), and potting glue (6) is injected into the frame (1) and the shell (7).

5. A potted transformer with a temperature protection switch as claimed in claim 4, characterized in that: The shell (7) is provided with a spiral cooling channel (8), the top of the shell (7) is provided with a water injection port (9) connected to the cooling channel (8), and the bottom of the shell (7) is provided with a water outlet (10) connected to the cooling channel (8).

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