Temperature measurement resistor element for generator stator coil

Abstract

The utility model relates to the technical field of generator temperature measurement, in particular to a temperature measurement resistor element for a generator stator coil, which comprises a generator shell, a stator support frame is arranged in the generator shell, a mounting cavity is formed between the stator support frame and the generator shell, and an extension plate is fixedly connected to the outer side wall of the stator support frame. The top end of the extension plate is fixedly connected with the inner wall of the generator shell, a communication port is formed in the middle of the extension plate, a temperature measuring ring is arranged on the outer side wall of the stator supporting frame and composed of a connecting piece and a positioning piece, and temperature measuring resistor element bodies are embedded in the middles of the connecting piece and the positioning piece. According to the utility model, the internal temperature of the generator can be monitored, when a certain temperature measurement resistor element main body is damaged, the generator does not need to be disassembled, and the maintenance is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of generator temperature measurement, in particular to a temperature measuring resistance element for a generator stator coil. Background Art

[0002] Electricity is an indispensable part of modern society, providing power for our daily life and production. However, the power grid will fail after working for a long time, and the power company needs to shut down the power grid for maintenance. But many devices cannot be powered off, such as refrigerators. Once a power outage occurs, the temperature inside the refrigerator will rise, causing damage to the items stored in the refrigerator. For this reason, many places with high power demand are equipped with generators, which will generate electricity to provide power for the equipment when there is a power outage. When the existing generator is generating electricity, the rotor rotates inside the stator, thereby cutting the magnetic flux lines. In this process, a lot of heat will be generated. It is necessary to monitor the temperature inside the generator set at all times to avoid abnormal temperature rise, otherwise it will seriously threaten the normal and stable operation of the unit, and in severe cases it will cause a short circuit; now the temperature measuring resistor elements are directly fixed inside the generator. When a temperature measuring resistor element fails, the generator needs to be disassembled, and maintenance is more cumbersome. Utility Model Content

[0003] The utility model aims to provide a temperature measuring resistance element for a generator stator coil to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temperature measuring resistor element for a stator coil of a generator, comprising a generator housing, a stator support frame is provided inside the generator housing, an installation cavity is formed between the stator support frame and the generator housing, an extension plate is fixedly connected to the outer wall of the stator support frame, the top of the extension plate is fixedly connected to the inner wall of the generator housing, a connecting port is provided in the middle of the extension plate, a temperature measuring ring is provided on the outer wall of the stator support frame, the temperature measuring ring is composed of a connecting plate and a positioning plate, the middle of the connecting plate and the positioning plate are both inlaid with a temperature measuring resistor element body, an installation port is provided on the right side of the generator housing, and a sealing cover is provided at the installation port.

[0005] Preferably, a positioning protrusion is fixedly connected to the inner wall of the positioning plate, and the rest of the structure of the positioning plate is the same as the structure of the connecting plate. The connecting plate and the positioning plate are connected end to end to each other to form a temperature measuring ring. An annular groove is provided on the outer wall of the stator support frame, and the temperature measuring ring is located in the annular groove. A positioning groove is provided on the inner wall of the annular groove, and the positioning protrusion and the positioning groove are clamped together.

[0006] Preferably, one end of the positioning piece is fixedly connected with a connecting piece, and the other end of the positioning piece is provided with a clamping groove, and the connecting piece is inserted into the clamping groove.

[0007] Preferably, an elastic rubber column is fixedly connected to the inner wall of the clamping groove, a magnet sheet is fixedly connected to the top end of the elastic rubber column, and the magnet sheet is an arc-shaped structure.

[0008] Preferably, the top end of the connecting piece is a spherical structure, the top end of the connecting piece is an iron ball structure, and the tail end of the connecting piece is a columnar structure.

[0009] Preferably, locking plates are fixedly connected to the inner walls on both sides of the snap-in groove, both sides of the locking plates are arc-shaped structures, the locking plates are elastic structures, and the distance between the two locking plates is smaller than the diameter of the spherical structure at the front end of the connecting piece.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the temperature measuring ring is located on the stator support frame, and can monitor the temperature inside the generator. When a certain temperature measuring resistor element body is damaged, it is only necessary to rotate the temperature measuring ring, move the part to the sealing cover, take out the connecting piece or the positioning piece, replace it with a new one, and re-form a complete temperature measuring ring. The maintenance is simple and convenient, and there is no need to disassemble the generator casing when replacing the temperature measuring resistor element body. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the connection between the stator support frame and the temperature measuring ring.

[0012] Figure 2 This is a schematic diagram of the temperature measuring loop connection.

[0013] Figure 3 This is a schematic diagram of the connection between the positioning piece and the connecting piece.

[0014] Figure 4 This is an enlarged schematic diagram of point A.

[0015] In the figure: 1 generator housing, 2 stator support frame, 3 sealing cover, 4 extension plate, 5 connecting port, 6 installation cavity, 7 temperature measuring ring, 71 connecting plate, 72 positioning plate, 8 positioning protrusion, 9 temperature measuring resistor element body, 10 clamping groove, 11 elastic rubber column, 12 magnet plate, 13 locking plate, 14 connecting piece. DETAILED DESCRIPTION

[0016] In order to deepen the understanding and recognition of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described and introduced in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments, and are not intended to limit the embodiments in any form. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 The utility model provides a technical solution: a temperature measuring resistor element for a stator coil of a generator, comprising a generator housing 1, a stator support frame 2 is arranged inside the generator housing 1, an installation cavity 6 is formed between the stator support frame 2 and the generator housing 1, an extension plate 4 is fixedly connected to the outer wall of the stator support frame 2, the top of the extension plate 4 is fixedly connected to the inner wall of the generator housing 1, a connecting port 5 is arranged in the middle of the extension plate 4, a temperature measuring ring 7 is arranged on the outer wall of the stator support frame 2, the temperature measuring ring 7 is composed of a connecting piece 71 and a positioning piece 72, a temperature measuring resistor element body 9 is inlaid in the middle of the connecting piece 71 and the positioning piece 72, an installation port is arranged on the right side of the generator housing 1, a sealing cover 3 is arranged at the installation port, and the temperature measuring ring 7 can rotate in the installation cavity, so as to move the temperature measuring resistor element body 9 to the place where the temperature needs to be measured, so as to monitor the inside of the generator.

[0018] A positioning protrusion 8 is fixedly connected to the inner wall of the positioning piece 72, and the rest of the structure of the positioning piece 72 is the same as that of the connecting piece 71. The connecting piece 71 and the positioning piece 72 are connected end to end to form a temperature measuring ring 7. An annular groove is provided on the outer wall of the stator support frame 2, and the temperature measuring ring 7 is located in the annular groove. A positioning groove is provided on the inner wall of the annular groove. The positioning protrusion 8 and the positioning groove are clamped. The temperature measuring ring 7 is composed of a connecting piece 71 and a positioning piece 72 connected end to end. When a certain temperature measuring resistor element body 9 is damaged, the temperature measuring ring 7 can be rotated to move the damaged part to the sealing cover 3, and the damaged part can be replaced. The new part can re-compose the temperature measuring ring 7. After the positioning protrusion 8 and the positioning groove are clamped, the temperature measuring ring 7 can be positioned and placed, thereby monitoring the area where the internal temperature of the generator is prone to rise.

[0019] One end of the positioning piece 72 is fixedly connected with a connecting piece 14, and the other end of the positioning piece 72 is provided with a clamping groove 10, and the connecting piece 14 is inserted into the clamping groove 10, and an elastic rubber column 11 is fixedly connected to the inner wall of the clamping groove 10, and a magnet sheet 12 is fixedly connected to the top of the elastic rubber column 11, and the magnet sheet 12 is an arc-shaped structure. The top of the connecting piece 14 is a spherical structure, the top of the connecting piece 14 is an iron ball structure, and the tail end of the connecting piece 14 is a columnar structure. Locking pieces 13 are fixedly connected to the inner walls of both sides of the clamping groove 10, and both sides of the locking piece 13 are arc-shaped structures, and the locking piece 13 is an elastic structure. The distance between the two locking plates 13 is smaller than the diameter of the spherical structure at the front end of the connecting piece 14. The top end of the connecting piece 14 is brought close to the snap-in groove 10, and the magnetic plate 12 adsorbs the connecting piece 14 into the snap-in groove 10. At this time, it is squeezed again to deform the two locking plates 13, allowing the connecting piece 14 to be snapped into the snap-in groove 10. The locking plates 13 lock and fix the connecting piece 14. When the connecting piece 14 squeezes the magnetic plate 12, the elastic rubber column 11 can be deformed, which can change the gap between the positioning plate 72 and the connecting piece 71, thereby facilitating the installation and disassembly of the connecting piece 71 or the positioning plate 72.

[0020] Although the embodiments of the utility model have been shown and described, it should be emphasized that the above description is only an introduction and description of the use of the embodiments of the utility model, and does not limit the utility model in any form. For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A temperature measuring resistor element for a generator stator coil, comprising a generator housing (1), characterized in that: A stator support frame (2) is provided inside the generator housing (1), and a mounting cavity (6) is formed between the stator support frame (2) and the generator housing (1). An extension plate (4) is fixedly connected to the outer wall of the stator support frame (2), and the top of the extension plate (4) is fixedly connected to the inner wall of the generator housing (1). A connecting port (5) is provided in the middle of the extension plate (4). A temperature measuring ring (7) is provided on the outer wall of the stator support frame (2), and the temperature measuring ring (7) is composed of a connecting plate (71) and a positioning plate (72). A temperature measuring resistor element body (9) is embedded in the middle of the connecting plate (71) and the positioning plate (72). A mounting port is provided on the right side of the generator housing (1), and a sealing cover (3) is provided at the mounting port.

2. The temperature measuring resistance element for a generator stator coil according to claim 1, characterized in that: A positioning protrusion (8) is fixedly connected to the inner wall of the positioning piece (72); the remaining structure of the positioning piece (72) is the same as that of the connecting piece (71); the connecting piece (71) and the positioning piece (72) are connected end to end to form a temperature measuring ring (7); an annular groove is provided on the outer wall of the stator support frame (2); the temperature measuring ring (7) is located in the annular groove; a positioning groove is provided on the inner wall of the annular groove; the positioning protrusion (8) is snap-fitted to the positioning groove.

3. The temperature measuring resistance element for a generator stator coil according to claim 1, characterized in that: One end of the positioning piece (72) is fixedly connected with a connecting piece (14), and the other end of the positioning piece (72) is provided with a clamping groove (10), and the connecting piece (14) is inserted into the clamping groove (10).

4. The temperature measuring resistance element for a generator stator coil according to claim 3, characterized in that: An elastic rubber column (11) is fixedly connected to the inner wall of the clamping groove (10), and a magnet sheet (12) is fixedly connected to the top of the elastic rubber column (11), wherein the magnet sheet (12) is an arc-shaped structure.

5. The temperature measuring resistance element for a generator stator coil according to claim 3, characterized in that: The top end of the connecting piece (14) is a spherical structure, the top end of the connecting piece (14) is an iron ball structure, and the tail end of the connecting piece (14) is a columnar structure.

6. The temperature measuring resistance element for a generator stator coil according to claim 3, characterized in that: Locking plates (13) are fixedly connected to the inner walls on both sides of the clamping groove (10), both sides of the locking plate (13) are arc-shaped structures, the locking plate (13) is an elastic structure, and the distance between the two locking plates (13) is smaller than the diameter of the spherical structure at the front end of the connecting piece (14).

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