Wireless passive generator rotor temperature measuring device

Abstract

The invention discloses a wireless passive generator rotor temperature measuring device, which comprises a generator shell, a stator core and a stator, and is characterized in that a temperature measuring mechanism is mounted on the outer side of the stator, and relates to the technical field of generators, a receiving antenna can be embedded in the inner wall of the stator, and the receiving antenna penetrates out of a threading hole of the generator shell; the temperature measuring antenna is fixed on the bus at the annular groove of the rotor assembly, so that the temperature of the rotor assembly in the generator shell can be measured by matching the temperature measuring antenna with the chip, a temperature measuring signal of the chip is received through the receiving antenna, and meanwhile, the receiving antenna is connected with an external electric control cabinet and the like. Therefore, signals can be decoded, the measured temperature can be displayed, and when the temperature of the rotor assembly is too high, the temperature can be found in time and processed in advance, so that the service life and the power generation efficiency of the device are ensured.

Description

Technical Field

[0001] This invention relates to the field of generator technology, specifically to a wireless passive generator rotor temperature measuring device. Background Technology

[0002] A generator is a device that converts mechanical energy into electrical energy, and it is widely used in various industrial and civilian fields. It generates current by using the principle of electromagnetic induction to drive a coil in a magnetic field through rotating mechanical power. This device plays a crucial role in modern power systems, providing stable power support not only for critical facilities such as factories, hospitals, and data centers, but also playing an irreplaceable role in household electricity and traffic lighting.

[0003] Currently, due to technological limitations, it is impossible to measure the temperature of the internal rotor position during generator operation. In this case, operators cannot grasp the actual temperature of the rotor in a timely and accurate manner. When the rotor temperature continues to rise and exceeds the safe operating range, if the generator continues to run, the insulation layer on the rotor will gradually be damaged due to high temperature, which will further cause short circuits and may even burn out the stator coils, thereby significantly increasing the generator's failure rate and maintenance costs, and seriously affecting its normal operation and service life. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wireless passive generator rotor temperature measurement device, which solves the problem that existing technologies cannot measure the temperature of the internal rotor position, and operators cannot grasp the actual temperature of the rotor in a timely and accurate manner.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a wireless passive generator rotor temperature measuring device, comprising a generator housing, a stator core and a stator, wherein the inner wall of the generator housing is fixedly connected to the stator core, the interior of the stator core is wound and connected to the stator, and a temperature measuring mechanism is installed on the outer side of the stator;

[0006] The temperature measuring mechanism includes a rotor assembly disposed inside the stator, a busbar wound around the annular groove of the rotor assembly, slip rings connected to both ends of the busbar and connected to the rotor assembly, a temperature measuring antenna fixed to the outer wall of the busbar, a chip connected to the bottom end of the temperature measuring antenna, a receiving antenna embedded in the inner wall of the stator, and the top outer wall of the receiving antenna slidably connected to the wiring hole of the generator housing.

[0007] Preferably, a main shaft is fixedly connected inside the rotor assembly.

[0008] Preferably, the two ends of the main shaft are rotatably connected to a generator end cover and a generator tail cover via bearings, and both the generator end cover and the generator tail cover are threadedly connected to the generator housing by several bolts.

[0009] Preferably, the rotor assembly consists of rotor windings and a rotor core.

[0010] Beneficial effects

[0011] This invention provides a wireless passive generator rotor temperature measuring device, which has the following advantages:

[0012] A receiving antenna can be embedded in the inner wall of the stator and passed through the wiring hole in the generator housing;

[0013] The temperature measuring antenna is then fixed to the busbar at the annular groove of the rotor assembly. In this way, the temperature of the rotor assembly inside the generator housing can be measured by the temperature measuring antenna in conjunction with the chip. The receiving antenna receives the temperature measurement signal from the chip and connects to the external electrical control cabinet, etc., so that the signal can be decoded and the measured temperature can be displayed. This allows for timely detection and early handling when the rotor assembly temperature is too high, thereby ensuring the service life and power generation efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention.

[0015] Figure 2 This is a partially enlarged schematic diagram of the present invention.

[0016] In the diagram: 1. Generator housing; 2. Stator core; 3. Stator; 4. Busbar; 5. Slip ring; 6. Temperature measuring antenna; 7. Chip; 8. Rotor assembly; 9. Receiving antenna; 10. Main shaft; 11. Bearing; 12. Generator end cover; 13. Generator tail cover; 14. Bolt. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1 and 2The present invention provides a technical solution: a wireless passive generator rotor temperature measuring device, comprising a generator housing 1, a stator core 2 and a stator 3, wherein the inner wall of the generator housing 1 is fixedly connected to the stator core 2, the interior of the stator core 2 is wound and connected to the stator 3, and a temperature measuring mechanism is installed on the outer side of the stator 3.

[0019] The temperature measuring mechanism includes a rotor assembly 8 disposed inside the stator 3, a busbar 4 wound around the annular groove of the rotor assembly 8, slip rings 5 ​​connected to both ends of the busbar 4 and connected to the rotor assembly 8, a temperature measuring antenna 6 fixed to the outer wall of the busbar 4, a chip 7 connected to the bottom end of the temperature measuring antenna 6, a receiving antenna 9 embedded in the inner wall of the stator 3, and the top outer wall of the receiving antenna 9 slidably connected to the wire hole of the generator housing 1.

[0020] A wire hole is machined on the top of the generator housing 1 to allow the receiving antenna 9 to pass through. The receiving antenna 9 extends out of the generator housing 1 and can be connected to the signal receiver and electrical control cabinet, etc. An annular groove is machined on the outer wall of the rotor assembly 8 to install the busbar 4. Alternatively, the annular groove can be omitted, and the busbar 4 can be directly wound and fixed to an appropriate position on the rotor assembly 8. A temperature measuring antenna 6 is fixed on the busbar 4. The temperature measuring antenna 6 is made of copper wire. The chip 7 can be an SFX01 model or a different model chip can be selected according to requirements. In this way, the temperature measuring antenna 6 and the chip 7 can form a temperature sensor structure. The temperature measuring antenna 6 and the chip 7 are wireless and passive, do not hinder the rotation of the rotor assembly 8, and rotate together with the rotor assembly 8.

[0021] In this embodiment, the rotor assembly 8 is further configured such that a main shaft 10 is fixedly connected inside.

[0022] In this embodiment, the two ends of the main shaft 10 are respectively rotatably connected to the generator end cover 12 and the generator tail cover 13 via bearings 11, and the generator end cover 12 and the generator tail cover 13 are threadedly connected to the generator housing 1 by several bolts 14.

[0023] The main shaft 10 can be supported by the generator end cover 12 and the generator tail cover 13.

[0024] In this embodiment, the rotor assembly 8 is further configured to consist of rotor windings and rotor core.

[0025] It is worth noting that all standard parts used in this invention can be purchased commercially, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The models of electrical structures and equipment involved can be selected according to the user's needs, as long as they meet the requirements of this application. Furthermore, the circuit connections adopt conventional connection methods in the prior art. The control, current detection, position feedback, predicted voltage synchronization, and parameter adjustment of the electrical equipment are all existing technologies and will not be described in detail here. All content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0026] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0027] Example: When this device is needed, a receiving antenna 9 can be embedded in the inner wall of the stator 3 and passed through the wiring hole of the generator housing 1. Then, the temperature measuring antenna 6 is fixed to the busbar 4 at the annular groove of the rotor assembly 8. In this way, the temperature measuring antenna 6, together with the chip 7, can measure the temperature of the rotor assembly 8 inside the generator housing 1, and receive the temperature measurement signal of the chip 7 through the receiving antenna 9. At the same time, the receiving antenna 9 is connected to the external electrical control cabinet, etc., so that the signal can be decoded and the measured temperature can be displayed. Thus, when the temperature of the rotor assembly 8 is too high, it can be detected in time and dealt with early, thereby ensuring the service life and power generation efficiency of the device. Finally, according to the assembly process, the components are assembled according to the diagram, ensuring that the bolts are tightened and the welding is firm. Then, the circuit and control devices are connected, and after checking that all interfaces are correct, the power is turned on for testing to ensure that the current detection, position feedback and other functions are normal.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless passive generator rotor temperature measuring device, comprising a generator housing (1), a stator core (2), and a stator (3), wherein the inner wall of the generator housing (1) is fixedly connected to the stator core (2), and the interior of the stator core (2) is wound and connected to the stator (3), characterized in that: A temperature measuring mechanism is installed on the outside of the stator (3); The temperature measuring mechanism includes a rotor assembly (8) disposed inside the stator (3), a busbar (4) wound around the annular groove of the rotor assembly (8), slip rings (5) connected to both ends of the busbar (4), and the slip rings (5) connected to the rotor assembly (8), a temperature measuring antenna (6) fixed to the outer wall of the busbar (4), a chip (7) connected to the bottom end of the temperature measuring antenna (6), a receiving antenna (9) embedded in the inner wall of the stator (3), and the top outer wall of the receiving antenna (9) slidably connected to the wire hole of the generator housing (1).

2. The wireless passive generator rotor temperature measuring device according to claim 1, characterized in that, The rotor assembly (8) has a main shaft (10) fixed inside.

3. The wireless passive generator rotor temperature measuring device according to claim 2, characterized in that, The two ends of the main shaft (10) are respectively rotatably connected to the generator end cover (12) and the generator tail cover (13) via bearings (11), and the generator end cover (12) and the generator tail cover (13) are threadedly connected to the generator housing (1) by several bolts (14).

4. The wireless passive generator rotor temperature measuring device according to claim 2, characterized in that, The rotor assembly (8) consists of rotor windings and rotor core.

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