Integrated motor frequency converter with protective heat dissipation device
By introducing protective shells, buffer cotton, heat sinks and exhaust mechanisms into the integrated motor inverter, the problems of easy damage to the equipment and poor heat dissipation performance are solved, the equipment is protected and efficient heat dissipated, and the service life is extended and installation is simplified. .
Patent Information
- Application Number
- CN202420919823.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing integrated motor inverters lack protection devices and poor heat dissipation performance, are prone to damage and have short service life.
An integrated motor frequency converter including protective case, buffer groove, buffer cotton, heat sink mechanism, exhaust mechanism and dustproof net was designed. The heat sink and exhaust mechanism were protected by the buffer cotton to improve the heat dissipation effect, and through Dustproof net prevents dust from entering.
Provides protection functions to extend the life of the equipment, significantly improves heat dissipation and dust protection, and simplifies the installation process.
Smart Images
Figure CN222215513U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of frequency converters, in particular to an integrated motor frequency converter with a protective heat dissipation device. Background Art
[0002] The frequency converter is an electric energy control device that uses the on-off function of power semiconductor devices to convert the industrial frequency power supply into another frequency. Frequency conversion means changing the frequency. The frequency conversion device is called a frequency converter, and Siemens calls it a vector controller. The original frequency converter simply changed the frequency. The current frequency converter can re-modulate the voltage, current, and frequency, which is vector control. The frequency converter that uses the on-off function of power semiconductor devices to convert the industrial frequency power supply into another frequency of the power control device. The frequency converter currently used mainly adopts the AC-DC-AC method (VVVF frequency conversion or vector control frequency conversion). The industrial frequency AC power supply is first converted into a DC power supply through a rectifier, and then the DC power supply is converted into an AC power supply with controllable frequency and voltage to supply the motor. The circuit of the frequency converter generally consists of four parts: rectification, intermediate DC link, inversion and control. The rectification part is a three-phase bridge uncontrolled rectifier, the inversion part is an IGBT three-phase bridge inverter, and the output is a PWM waveform. The intermediate DC link is filtering, DC energy storage and buffering reactive power. In addition, before the frequency conversion technology, the motor used DC speed regulation, that is, changing the DC voltage. Because DC motors have brushes, maintenance is complicated, and there are electric sparks (cannot be used in dangerous places), they are basically eliminated. Relatively speaking, DC speed regulation has a more stable speed, so it is still used.
[0003] The existing integrated motor inverters still have the following deficiencies: 1) The existing integrated motor inverters lack protective devices and may be damaged by careless operation when used by the operator. 2) The existing integrated motor inverters generate a lot of heat when working, and it is difficult to dissipate heat simply by the integrated motor inverter body, which leads to failure of the integrated motor inverter or a reduction in service life. Utility Model Content
[0004] The utility model aims to provide an integrated motor frequency converter with a protective heat dissipation device, which solves the problems of lack of protective devices and poor heat dissipation performance.
[0005] To achieve the above-mentioned purpose, the utility model provides an integrated motor inverter with a protective heat dissipation device, including a motor inverter and a protective shell, the motor inverter being connected to a buffer cotton sleeve arranged inside the protective shell through a buffer groove opened on its outer surface, a first vent is opened on both sides of the motor inverter, a heat sink mechanism is arranged at the center of the outer surface of the motor inverter, an exhaust mechanism is installed on both sides of the protective shell, and a second vent is opened at the center of the outer surface of the protective shell.
[0006] Preferably, mounting plates are fixedly provided at both upper and lower ends of the protective shell and the side away from the second vent, and a plurality of through holes arranged at equal distances are opened on the mounting plate.
[0007] Preferably, the heat sink mechanism comprises a heat sink base plate, and heat sink clamping mechanisms are installed at four corners of the heat sink base plate, and the heat sink clamping mechanisms clamp the heat sink.
[0008] Preferably, the heat sink clamping mechanism comprises a clamping plate, a fixing screw is provided through the center of the clamping plate, a fixing pressing plate is installed at one end of the fixing screw located inside the clamping plate, and a buffer layer is attached to the bottom of the fixing pressing plate.
[0009] Preferably, the exhaust mechanism comprises an exhaust window, and an exhaust fan is installed inside the exhaust window.
[0010] Preferably, dustproof nets are installed at the external openings of the first vent, the second vent and the exhaust window.
[0011] Therefore, the utility model adopts an integrated motor inverter with a protective heat dissipation device of the above structure, which has the following beneficial effects:
[0012] (1) The utility model has a simple structure, is easy to operate and install, wherein the protective shell provides protection for the motor inverter, and the buffer cotton is provided to protect the corners of the motor inverter from being damaged, thereby improving the service life of the overall equipment.
[0013] (2) The first vent, the second vent, the exhaust mechanism and the heat sink mechanism in the present invention can greatly improve the heat dissipation effect of the entire device, and dustproof nets are provided at the openings to effectively prevent dust.
[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of an integrated motor frequency converter with a protective heat dissipation device according to the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of an integrated motor frequency converter with a protective heat dissipation device according to the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of an integrated motor frequency converter with a protective heat dissipation device according to the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of an integrated motor frequency converter with a protective heat dissipation device according to the utility model;
[0019] Figure 5 This is a schematic diagram of the structure of an integrated motor frequency converter with a protective heat dissipation device according to the utility model;
[0020] Reference numerals
[0021] 1. Motor inverter, 2. Heat sink mechanism, 3. First vent, 4. Protective shell, 5. Mounting plate, 6. Buffer slot, 7. Buffer cotton, 8. Second vent, 9. Exhaust mechanism, 21. Heat dissipation base plate, 22. Heat sink, 23. Heat sink clamping mechanism, 231. Clamp, 232. Fixing screw, 233. Fixing press sheet, 234. Buffer layer, 91. Exhaust fan, 92. Exhaust window. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.
[0023] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0024] Example
[0025] like Figure 1-5 As shown, the utility model provides an integrated motor inverter with a protective heat dissipation device, including a motor inverter 1 and a protective shell 4. The motor inverter 1 is connected to a buffer cotton 7 arranged inside the protective shell 4 through a buffer groove 6 opened on its outer surface, a first vent 3 is opened on both sides of the motor inverter 1, a heat sink mechanism 2 is arranged at the center of the outer surface of the motor inverter 1, exhaust mechanisms 9 are installed on both sides of the protective shell 4, and a second vent 8 is opened at the center of the outer surface of the protective shell 4.
[0026] Mounting plates 5 are fixedly provided at both upper and lower ends of the protective shell 4 and the side away from the second vent 8 , and a plurality of through holes arranged at equal intervals are provided on the mounting plate 5 .
[0027] The heat sink mechanism 2 includes a heat sink base plate 21 . Heat sink clamping mechanisms 23 are installed at four corners of the heat sink base plate 21 . The heat sink clamping mechanisms 23 clamp the heat sink 22 .
[0028] The heat sink clamping mechanism 23 includes a clamping plate 231 , a fixing screw 232 is provided through the center of the clamping plate 231 , a fixing pressing plate 233 is installed at one end of the fixing screw 232 located inside the clamping plate 231 , and a buffer layer 234 is attached to the bottom of the fixing pressing plate 233 .
[0029] The exhaust mechanism 9 includes an exhaust window 92, and an exhaust fan 91 is installed inside the exhaust window 92. The first vent 3, the second vent 8 and the outer opening of the exhaust window 92 are all installed with dustproof nets.
[0030] Working principle: Install the heat sink 22 into the clamping plate 231, and fix the heat sink 22 on the heat dissipation base plate 21 by adjusting the four fixing screws 232 so that the fixing pressing plate 233 can be used. When installing the motor inverter 1 and the protective shell 4, the buffer groove 6 needs to be aligned with the buffer cotton 7 inside the protective shell. The buffer cotton 7 can play two roles of support and buffering. The first vent 3 and the second vent 8 are used for ventilation and heat dissipation to maintain air circulation, and the exhaust mechanism 9 accelerates the air flow rate of the first vent 3 through the exhaust fan 91 to improve the heat dissipation effect.
[0031] Therefore, the utility model adopts the above-mentioned integrated motor inverter with protective heat dissipation device, which has a simple structure, is easy to operate and install, wherein the protective shell provides protection for the motor inverter, and is provided with buffer cotton to protect the corners of the motor inverter from damage, thereby improving the service life of the overall device. The first vent, the second vent, the exhaust mechanism and the heat sink mechanism in the utility model can greatly improve the heat dissipation effect of the overall device, and the openings are all provided with dustproof nets to effectively prevent dust.
[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.
Claims
1. An integrated motor inverter with a protective heat dissipation device, characterized in that: It includes a motor inverter and a protective shell. The motor inverter is connected to a buffer cotton sleeve arranged inside the protective shell through a buffer groove opened on its outer surface. First vents are opened on both sides of the motor inverter. A heat sink mechanism is arranged at the center of the outer surface of the motor inverter. Exhaust mechanisms are installed on both sides of the protective shell. A second vent is opened at the center of the outer surface of the protective shell.
2. The integrated motor inverter with a protective heat dissipation device according to claim 1, characterized in that: The protective shell and the upper and lower ends of the side away from the second vent are fixedly provided with mounting plates, and the mounting plate is provided with a plurality of through holes arranged at equal distances.
3. The integrated motor inverter with a protective heat dissipation device according to claim 2, characterized in that: The heat sink mechanism comprises a heat sink base plate, and heat sink clamping mechanisms are installed at four corners of the heat sink base plate, and the heat sink clamping mechanisms clamp the heat sink.
4. The integrated motor inverter with a protective heat dissipation device according to claim 3, characterized in that: The heat sink clamping mechanism comprises a clamping plate, a fixing screw is provided through the center of the clamping plate, a fixing pressing plate is installed at one end of the fixing screw located inside the clamping plate, and a buffer layer is attached to the bottom of the fixing pressing plate.
5. The integrated motor inverter with a protective heat dissipation device according to claim 4, characterized in that: The exhaust mechanism comprises an exhaust window, and an exhaust fan is installed inside the exhaust window.
6. The integrated motor inverter with a protective heat dissipation device according to claim 5, characterized in that: The first vent, the second vent and the external opening of the exhaust window are all equipped with dustproof nets.