Frequency converter cooling and heat dissipation protection system
By designing an inverter cooling and heat dissipation protection system and utilizing components such as a mounting frame, a cooling fan, a positioning seat, and a guide seat, the problem of uneven heat dissipation inside the inverter is solved, achieving a uniform and efficient heat dissipation effect and extending the service life of electronic components.
Patent Information
- Application Number
- CN202422748149.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-12
AI Technical Summary
Uneven heat dissipation inside the inverter causes local overtemperature, affecting the reliability and life of electronic components.
A frequency converter cooling and heat dissipation protection system is designed, which includes a mounting frame, a cooling fan, a positioning seat, a filter and a guide seat. It can dissipate heat efficiently by evenly dissipating airflow and facilitate the cleaning and replacement of the filter.
This achieves uniform temperature distribution among the components inside the inverter, avoids local overheating, and extends the service life of electronic components.
Smart Images
Figure CN223452284U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of frequency converter, concretely is a kind of frequency converter cooling and heat dissipation protection system. BACKGROUND
[0002] Frequency converter is a kind of application frequency conversion technology and microelectronic technology, by changing the power frequency mode of motor working power to control the electric power control device of alternating current motor;Frequency converter has a large number of electronic components inside, such as rectifier bridge, IGBT (Insulated Gate Bipolar Transistor), capacitor etc.;These components can generate certain power loss in working process, and these losses are mainly in the form of heat dissipation;If not in time heat dissipation, heat accumulation can lead to component temperature rise;According to Joule's law, power loss is proportional to the square of current and resistance;
[0003] When fan is cooling frequency converter inside, airflow cannot evenly cool frequency converter inside, since airflow is uneven, some areas inside frequency converter can not be cooled enough, leading to local temperature too high;Power module, rectifier bridge and other high-heat components can exceed normal operating temperature range due to insufficient heat dissipation;Local overheating can accelerate the aging of electronic components, reduce its reliability and service life. INVENTION CONTENTS
[0004] The utility model aims at providing a kind of frequency converter cooling and heat dissipation protection system to solve the defects mentioned in the above background.
[0005] To achieve the above object, provide a kind of frequency converter cooling and heat dissipation protection system, including installation frame, the surface of installation frame is screw connected and installed with heat dissipation fan, and the end surface of installation frame is equipped with positioning slot, while the section opening of installation frame is provided with filter screen, and the bottom outer side of installation frame is welded with positioning seat, positioning seat covers the surface of frequency converter rear cover, and the middle part of frequency converter rear cover is equipped with air inlet, while the surface of air inlet is installed with flow guide seat, and the upper end and lower end of flow guide seat are both fixedly installed with mounting seat, and mounting seat covers the surface of frequency converter rear cover and is fixedly connected by bolt.
[0006] Preferably, the installation frame is elliptical as a whole, and two groups of heat dissipation holes are evenly formed on the surface of the installation frame, and heat dissipation fans are installed at the two groups of heat dissipation holes.
[0007] Preferably, four groups of through holes are evenly formed on the positioning seat, and four groups of screw holes are evenly formed on the surface of the frequency converter rear cover, the through holes on the positioning seat are adapted to the size of the first bolts, and the first bolts are screwed into the screw holes formed on the surface of the frequency converter rear cover through the through holes on the positioning seat.
[0008] Preferably, the positioning groove is matched with the size of the filter screen, the thickness of the filter screen is equal to the depth of the positioning groove, and the filter screen is clamped in the positioning groove and is fixed by screwing the second bolt.
[0009] Preferably, a plurality of groups of flow guide bases are uniformly arranged at the air inlet, the flow guide bases are arranged in a rectangular shape, the distance between adjacent two groups of flow guide bases is consistent, and an air inlet heat dissipation channel is formed between the adjacent two groups of flow guide bases.
[0010] Preferably, the surface of the flow guide base is provided with a flow guide fin, and the cross section of the flow guide fin is arranged in an isosceles trapezoidal shape.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1. The utility model discloses a plurality of groups of flow guide bases are impacted by gas, and the surface of the flow guide base is provided with a flow guide fin.
[0013] 2. The utility model discloses that the positioning seat is detached from the surface of the frequency converter rear cover, the second bolt is detached, the filter screen can be taken out from the inside of the positioning groove, and the filter screen covered with dust particles can be conveniently cleaned and replaced. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a front view of the utility model structure.
[0015] Figure 2 It is a bottom view. Figure 1
[0016] Figure 3 It is a sectional view. Figure 1
[0017] Figure 4 It is a top view. Figure 1
[0018] Figure 5 It is an enlarged structure schematic view of A in the utility model. Figure 2
[0019] The figure label: 1, heat dissipation fan; 2, mounting frame; 3, positioning seat; 31, positioning groove; 4, filter screen; 5, frequency converter rear cover; 51, air inlet; 52, flow guide seat; 521, flow guide piece; 522, mounting seat; 6, first bolt; 7, second bolt. DETAILED DESCRIPTION
[0020] Please refer to Figures 1-5 The utility model provides a kind of frequency converter cooling heat dissipation protection system, including mounting frame 2, the surface of mounting frame 2 is bolted and installed heat dissipation fan 1, and the end surface of mounting frame 2 is equipped with positioning groove 31, while the section opening of mounting frame 2 is provided with filter screen 4, and the bottom outer side of mounting frame 2 is welded with positioning seat 3, positioning seat 3 covers the surface of frequency converter rear cover 5, and the middle part of frequency converter rear cover 5 is equipped with air inlet 51, while the surface of air inlet 51 is installed with flow guide seat 52, and the upper end and lower end of flow guide seat 52 are fixedly installed with mounting seat 522, and mounting seat 522 covers the surface of frequency converter rear cover 5 and is fixedly connected by bolt.
[0021] Working principle: when using, the external switch of heat dissipation fan 1 is started, heat dissipation fan 1 works, airflow after acceleration impacts on the surface of filter screen 4, and dust particles in gas are cooled through filter screen 4, to ensure the cleanliness of cooling gas entering the interior of frequency converter, gas impacts on multiple flow guide seats 52, flow guide seat 52 is rectangle, and air inlet cooling channel is formed between adjacent two groups of flow guide seats 52, and flow guide piece 521 is arranged on the surface of flow guide seat 52; flow guide seat 52 is arranged, to evenly divide cooling airflow into multiple groups, evenly enter the interior of frequency converter, and discharge from the vent hole opened outside the interior of frequency converter, to avoid pressure build-up in the interior of frequency converter; it can realize uniform and efficient cooling work in the interior of frequency converter; uniform cooling can ensure that the temperature of each element in the interior of frequency converter is kept in a more suitable range, to avoid local overheating; greatly slow down the aging speed of electronic element, to prolong its service life; after using for a period of time, positioning seat 3 is disassembled from the surface of frequency converter rear cover 5, second bolt 7 is disassembled, and filter screen 4 can be taken out from the interior of positioning groove 31, to facilitate cleaning and replacement of filter screen 4 covered with dust particles.
[0022] Mounting frame 2 is elliptical as a whole, and two groups of heat dissipation holes are evenly arranged on the surface of mounting frame 2, and heat dissipation fan 1 is arranged in the two groups of heat dissipation holes.
[0023] As a preferable implementation form, four groups of through holes are uniformly arranged on the positioning seat 3, and four groups of screw holes are uniformly arranged on the surface of the frequency converter rear cover 5. The through holes on the positioning seat 3 are matched with the size of the first bolt 6, and the first bolt 6 is screwed into the screw hole arranged on the surface of the frequency converter rear cover 5 through the through hole on the positioning seat 3.
[0024] The positioning groove 31 is matched with the size of the filter screen 4, and the thickness of the filter screen 4 is equal to the depth of the positioning groove 31. The filter screen 4 is clamped in the positioning groove 31 and is fixed by the second bolt 7.
[0025] As a preferable implementation form, a plurality of groups of flow guide seats 52 are uniformly arranged at the air inlet 51, and the flow guide seats 52 are arranged in a rectangular shape. The distance between the adjacent two groups of flow guide seats 52 is consistent, and the air inlet heat dissipation channel is formed between the adjacent two groups of flow guide seats 52.
[0026] The surface of the flow guide seat 52 is provided with a flow guide fin 521, and the cross section of the flow guide fin 521 is arranged in an isosceles trapezoidal shape.
Claims
1. A frequency converter cooling and heat dissipation protection system, comprising a mounting frame (2), characterized in that: The surface of the mounting frame (2) is screwed with a cooling fan (1), and a positioning groove (31) is provided at the end surface of the mounting frame (2). At the same time, a filter (4) is provided at the cross-sectional opening of the mounting frame (2), and a positioning seat (3) is welded to the outer side of the bottom of the mounting frame (2), the positioning seat (3) covers the surface of the inverter rear cover (5), and an air inlet (51) is provided in the middle of the inverter rear cover (5), and a guide seat (52) is installed on the surface of the air inlet (51), and the upper and lower ends of the guide seat (52) are fixedly installed with a mounting seat (522), and the mounting seat (522) covers the surface of the inverter rear cover (5) and is fixedly connected by bolts.
2. The inverter cooling and heat dissipation protection system according to claim 1, characterized in that: The mounting frame (2) is elliptical in shape as a whole, and two groups of heat dissipation holes are evenly opened on the surface of the mounting frame (2), and heat dissipation fans (1) are installed at both groups of heat dissipation holes.
3. The inverter cooling and heat dissipation protection system according to claim 1, characterized in that: The positioning seat (3) is evenly provided with four groups of through holes, and the surface of the inverter rear cover (5) is evenly provided with four groups of screw holes. At the same time, the through holes on the positioning seat (3) are adapted to the size of the first bolt (6), and the first bolt (6) passes through the through holes on the positioning seat (3) and is screwed into the screw holes provided on the surface of the inverter rear cover (5).
4. The inverter cooling and heat dissipation protection system according to claim 1, characterized in that: The positioning groove (31) is adapted to the size of the filter screen (4), and the thickness of the filter screen (4) is equal to the depth of the positioning groove (31). The filter screen (4) is clamped inside the positioning groove (31) and is screwed and fixed by the second bolt (7).
5. The inverter cooling and heat dissipation protection system according to claim 1, characterized in that: A plurality of groups of guide seats (52) are evenly installed at the air inlet (51), and the guide seats (52) are arranged in a rectangular shape. The distance between two adjacent groups of guide seats (52) is consistent, and an air inlet and heat dissipation channel is formed between the two adjacent groups of guide seats (52).
6. The inverter cooling and heat dissipation protection system according to claim 5, characterized in that: A guide plate (521) is provided on the surface of the guide seat (52), and the cross section of the guide plate (521) is an isosceles trapezoidal arrangement.