Temperature monitoring system for wind power converter

Abstract

The utility model discloses a temperature monitoring system for a wind power converter, which belongs to the technical field of monitoring equipment and comprises an installation box, a temperature monitor, an installation assembly and a heat dissipation dustproof assembly. The heat dissipation and dust prevention assembly comprises an air inlet, a dust prevention plate is arranged below the air inlet and located at the upper end of the interior of the mounting box, a fixing mechanism is arranged between the dust prevention plate and the mounting box, and a heat dissipation fan is arranged below the dust prevention plate. Through the arrangement of the dustproof plate, dustproof treatment can be conducted on the interior of the mounting box, through the arrangement of the fixing mechanism, the dustproof plate can be fixed to the upper end of the interior of the mounting box or detached from the interior of the mounting box, and the dustproof plate can be conveniently cleaned or replaced; the problem that the dustproof effect is reduced after a dustproof plate is used for a long time is solved, the dustproof effect of the dustproof plate is guaranteed, safety protection on the temperature monitor is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of monitoring equipment, in particular to a temperature monitoring system for a wind power converter. Background Art

[0002] With the rapid development of wind power technology, power systems are placing increasingly stringent safety requirements on wind turbines and their components. Capacitors, as energy storage devices, are widely used in the DC link of wind power converters. They primarily balance the power of the generator-side and grid-side converters, stabilize the DC bus voltage, and absorb the AC component in the two-stage converters. This allows fluctuations in the DC bus voltage to be controlled within an acceptable range. However, when ripple resonance occurs in a wind power converter, the metallized film capacitors in the converter can frequently overheat and become damaged, necessitating timely monitoring of the device.

[0003] A Chinese patent with publication number CN221630896U discloses a real-time monitoring device for a wind power converter, which relates to the field of monitoring and includes an installation box and a connection assembly. A temperature sensor is installed inside the installation box. The connection assembly for easy installation and disassembly is arranged at both ends of the temperature sensor, and the connection assembly includes a connecting block, a connecting slot, a mounting frame and a fastening bolt. The end of the connecting block is provided with a connecting slot, and the lower end of the temperature sensor is provided with a mounting frame, and the mounting frame is an "I"-shaped structure.

[0004] The real-time monitoring device for wind power converters involved in the above patent still has some obvious shortcomings during actual use. The device has the problem of being inconvenient to prevent dust from entering the air inlet of its cooling fan, which makes it easy for dust to enter the interior of the device through the cooling fan, affecting the normal operation of electronic components. Therefore, we need to propose a temperature monitoring system for wind power converters. Utility Model Content

[0005] The purpose of the present invention is to provide a temperature monitoring system for a wind power converter, which has a structure capable of preventing dust from entering the air inlet of a cooling fan, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a temperature monitoring system for a wind power converter, comprising a mounting box, a temperature monitor disposed inside the mounting box, a mounting assembly for mounting the temperature monitor disposed between the temperature monitor and the interior of the mounting box, and a heat dissipation and dustproof assembly for dissipating heat and preventing dust from the temperature monitor disposed above the temperature monitor and at the upper end of the mounting box;

[0007] The heat dissipation and dustproof component includes an air inlet opened at the top of the installation box, a dustproof plate is provided below the air inlet and at the upper end of the interior of the installation box, a fixing mechanism is provided between the dustproof plate and the upper end of the interior of the installation box, and the dustproof plate is installed at the upper end of the interior of the installation box through the fixing mechanism, and a heat dissipation fan is provided at a corresponding position below the dustproof plate.

[0008] Preferably, the fixing mechanism includes two groups of fixing plates fixedly installed on the upper end of the interior of the installation box, and an installation cavity that is adapted to the dustproof plate is formed between the top of the two groups of fixing plates and the inner wall of the upper end of the installation box, and the dustproof plate is inserted into the interior of the installation cavity.

[0009] Preferably, a fixing cavity is provided at one end of each of the two groups of fixing plates, a fixing rod is slidably connected to the interior of the fixing cavity, a limiting plate is installed on the surface of the fixing rod and located inside the fixing cavity, a telescopic spring is provided between one side of the limiting plate and the inner wall of one end of the fixing cavity, and the telescopic spring is located on the surface of the fixing rod.

[0010] Preferably, the fixing mechanism also includes a blocking block rotatably connected to the upper end of the installation box, and two groups of fixing holes are opened on both sides of the lower end of the blocking block. The two groups of fixing holes are arranged corresponding to the two groups of fixing rods, and one end of the fixing rod is inserted into the inner cavity of the fixing hole.

[0011] Preferably, the mounting assembly includes a sliding groove opened on the inner wall of the lower end of the mounting box, a driving motor is installed at one end inside the sliding groove, the output end of the driving motor is located inside the sliding groove and is fixedly connected to a bidirectional screw rod, and one end of the bidirectional screw rod is rotatably connected to the inner wall of one end of the sliding groove.

[0012] Preferably, two sets of splints are threadedly connected at both ends of the surface of the bidirectional screw and at both ends located inside the sliding groove, and the lower ends of the two sets of splints are slidably connected to the two ends inside the sliding groove through the bidirectional screw, and one side of the two sets of splints are respectively attached to both sides of the temperature monitor.

[0013] Preferably, two groups of hydraulic rods are fixedly installed on the top of the two groups of clamps, and the output ends of the two groups of hydraulic rods are fixedly connected to two groups of pressure plates, and one end of the bottom of the two groups of pressure plates is respectively attached to the two ends of the top of the temperature monitor.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model can carry out dust-proof treatment on the interior of the installation box by setting the dust-proof plate, and can facilitate heat dissipation and cooling of the temperature monitor inside the installation box by cooperating with the air inlet and the heat dissipation fan. The dust-proof plate can be fixed to the upper end of the interior of the installation box or removed from the interior of the installation box by setting the fixing mechanism, so that the dust-proof plate can be easily cleaned or replaced, which solves the problem of reduced dust-proof effect of the dust-proof plate after long-term use, ensures the dust-proof effect of the dust-proof plate, improves the safety protection of the temperature monitor, and increases the practicality of the device.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the heat dissipation fan of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the sliding groove of the utility model;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure.

[0021] In the figure: 1. Installation box; 2. Temperature monitor; 3. Air inlet; 4. Dustproof plate; 5. Fixing mechanism; 501. Fixing plate; 502. Fixing cavity; 503. Fixing rod; 504. Limiting plate; 505. Telescopic spring; 506. Blocking block; 507. Fixing hole; 6. Cooling fan; 7. Sliding slot; 8. Drive motor; 9. Bidirectional screw; 10. Clamp; 11. Hydraulic rod; 12. Pressure plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a temperature monitoring system for a wind power converter, comprising an installation box 1, a temperature monitor 2, an installation component, and a heat dissipation and dustproof component.

[0024] A temperature monitor 2 is provided inside the installation box 1, and a protective door is provided on one side of the installation box 1. Two sets of heat dissipation grilles are provided at both ends of the installation box 1 and on both sides of the temperature monitor 2. A mounting assembly for installing the temperature monitor 2 is provided between the temperature monitor 2 and the interior of the installation box 1. A heat dissipation and dustproof assembly for dissipating heat and preventing dust from the temperature monitor 2 is provided at a corresponding position above the temperature monitor 2 and at the upper end of the installation box 1. Through the provision of the temperature monitor 2, the temperature inside the wind power AC converter can be monitored in real time to avoid frequent overheating of the capacitors in the wind power converter, thereby avoiding damage to the wind power converter.

[0025] The heat dissipation and dust-proof assembly includes an air inlet 3, a dust-proof plate 4, a fixing mechanism 5 and a heat dissipation fan 6. The air inlet 3 is opened at the top of the installation box 1. A dust-proof plate 4 is provided below the air inlet 3 and at the upper end inside the installation box 1. A fixing mechanism 5 is provided between the dust-proof plate 4 and the upper end inside the installation box 1, and the dust-proof plate 4 is installed at the upper end inside the installation box 1 through the fixing mechanism 5. A heat dissipation fan 6 is provided at the corresponding position below the dust-proof plate 4.

[0026] By setting the dustproof plate 4, the interior of the installation box 1 can be dust-proofed. By co-using the air inlet 3 and the heat dissipation fan 6, the temperature monitor 2 inside the installation box 1 can be dissipated and cooled. By setting the fixing mechanism 5, the dustproof plate 4 can be fixed to the upper end of the interior of the installation box 1 or removed from the interior of the installation box 1, so that the dustproof plate 4 can be easily cleaned or replaced, which solves the problem of reduced dustproof effect of the dustproof plate 4 after long-term use, ensures the dustproof effect of the dustproof plate 4, improves the safety protection of the temperature monitor 2, and increases the practicality of the device.

[0027] The fixing mechanism 5 includes a fixing plate 501, a fixing cavity 502, a fixing rod 503, a limiting plate 504, a telescopic spring 505, a blocking block 506 and a fixing hole 507. The two sets of fixing plates 501 are fixedly installed at the upper end of the interior of the installation box 1. An installation cavity that is adapted to the dustproof plate 4 is formed between the top of the two sets of fixing plates 501 and the inner wall of the upper end of the installation box 1, and the dustproof plate 4 is inserted into the interior of the installation cavity. One end of each of the two sets of fixing plates 501 is provided with a fixing cavity 502, and the interior of the fixing cavity 502 is slidably connected to the fixing rod 5 03, a limiting plate 504 is installed on the surface of the fixing rod 503 and inside the fixing cavity 502, a telescopic spring 505 is arranged between one side of the limiting plate 504 and the inner wall of one end of the fixing cavity 502, and the telescopic spring 505 is located on the surface of the fixing rod 503, the blocking block 506 is rotatably connected to the upper end of the installation box 1, and two groups of fixing holes 507 are opened on both sides of the lower end of the blocking block 506, the two groups of fixing holes 507 are arranged corresponding to the two groups of fixing rods 503, and one end of the fixing rod 503 is inserted into the inner cavity of the fixing hole 507.

[0028] The mounting assembly includes a sliding groove 7, a drive motor 8, a bidirectional screw rod 9, a splint 10, a hydraulic rod 11 and a pressure plate 12. The sliding groove 7 is opened on the inner wall of the lower end of the mounting box 1. A drive motor 8 is installed at one end of the sliding groove 7. The output end of the drive motor 8 is fixedly connected to the bidirectional screw rod 9 inside the sliding groove 7, and one end of the bidirectional screw rod 9 is rotatably connected to the inner wall of one end of the sliding groove 7. Two ends of the surface of the bidirectional screw rod 9 and the two ends located inside the sliding groove 7 are threadedly connected with two groups of splints 10. The lower ends of the two groups of splints 10 are slidably connected to the two ends of the sliding groove 7 through the bidirectional screw rod 9, and one side of the two groups of splints 10 are respectively attached to the two sides of the temperature monitor 2. Two groups of hydraulic rods 11 are fixedly installed on the top of the two groups of splints 10. The output ends of the two groups of hydraulic rods 11 are fixedly connected to two groups of pressure plates 12, and one end of the bottom of the two groups of pressure plates 12 is respectively attached to the two ends of the top of the temperature monitor 2.

[0029] Specifically, by using the sliding groove 7, the drive motor 8, the bidirectional screw 9, the splint 10, the hydraulic rod 11 and the pressure plate 12 in combination, the temperature monitor 2 can be easily installed inside the installation box 1, so as to facilitate the detection of the internal temperature of the wind power converter and to remind the workers in time.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temperature monitoring system for a wind power converter, characterized by: The invention comprises an installation box (1), wherein a temperature monitor (2) is arranged inside the installation box (1), an installation component for installing the temperature monitor (2) is arranged between the temperature monitor (2) and the interior of the installation box (1), and a heat dissipation and dustproof component for dissipating heat and preventing dust from the temperature monitor (2) is arranged at a position corresponding to the upper side of the temperature monitor (2) and located at the upper end of the installation box (1); The heat dissipation and dustproof component includes an air inlet (3) opened at the top of the installation box (1), a dustproof plate (4) is provided below the air inlet (3) and at the upper end inside the installation box (1), a fixing mechanism (5) is provided between the dustproof plate (4) and the upper end inside the installation box (1), and the dustproof plate (4) is installed at the upper end inside the installation box (1) through the fixing mechanism (5), and a heat dissipation fan (6) is provided at a corresponding position below the dustproof plate (4).

2. A temperature monitoring system for a wind power converter according to claim 1, characterized in that: The fixing mechanism (5) comprises two groups of fixing plates (501) fixedly mounted on the upper end of the interior of the installation box (1); a mounting cavity adapted to the dustproof plate (4) is formed between the tops of the two groups of fixing plates (501) and the inner wall of the upper end of the installation box (1); and the dustproof plate (4) is plugged into the interior of the mounting cavity.

3. A temperature monitoring system for a wind power converter according to claim 2, characterized in that: One end of each of the two groups of fixing plates (501) is provided with a fixing cavity (502), the interior of the fixing cavity (502) is slidably connected to a fixing rod (503), a limiting plate (504) is installed on the surface of the fixing rod (503) and located inside the fixing cavity (502), a telescopic spring (505) is provided between one side of the limiting plate (504) and the inner wall of one end of the fixing cavity (502), and the telescopic spring (505) is located on the surface of the fixing rod (503).

4. A temperature monitoring system for a wind power converter according to claim 3, characterized in that: The fixing mechanism (5) further comprises a blocking block (506) rotatably connected to the upper end of the installation box (1); two groups of fixing holes (507) are provided on both sides of the lower end of the blocking block (506); the two groups of fixing holes (507) are arranged corresponding to the two groups of fixing rods (503), and one end of the fixing rod (503) is inserted into the inner cavity of the fixing hole (507).

5. The temperature monitoring system for a wind power converter according to claim 1, characterized in that: The installation assembly includes a sliding groove (7) opened on the inner wall of the lower end of the installation box (1), a driving motor (8) is installed at one end inside the sliding groove (7), and a bidirectional screw rod (9) is fixedly connected to the output end of the driving motor (8) and located inside the sliding groove (7), and one end of the bidirectional screw rod (9) is rotatably connected to the inner wall of one end of the sliding groove (7).

6. A temperature monitoring system for a wind power converter according to claim 5, characterized in that: Two sets of clamping plates (10) are threadedly connected at both ends of the surface of the bidirectional screw rod (9) and at both ends located inside the sliding groove (7). The lower ends of the two sets of clamping plates (10) are slidably connected to the two ends inside the sliding groove (7) through the bidirectional screw rod (9), and one side of the two sets of clamping plates (10) is respectively attached to the two sides of the temperature monitor (2).

7. A temperature monitoring system for a wind power converter according to claim 6, characterized in that: Two groups of hydraulic rods (11) are fixedly installed on the tops of the two groups of clamping plates (10), and the output ends of the two groups of hydraulic rods (11) are fixedly connected to two groups of pressing plates (12), and one end of the bottom of the two groups of pressing plates (12) is respectively attached to the two ends of the top of the temperature monitor (2).

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