High-protection backpack frequency converter structure
By using a partition to separate the internal cavity in the backpack inverter, combined with a heat sink and carbon fiber capacitor heat-conducting sleeve, the problem of poor heat dissipation of the backpack inverter in a sealed environment is solved, achieving efficient heat dissipation and high protection.
Patent Information
- Application Number
- CN202520774449.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Existing backpack-type frequency converters cannot simultaneously achieve internal sealing and waterproofing as well as efficient heat dissipation in the operating environment, especially the heat dissipation requirements of heat-generating components such as IGBTs and capacitors are not fully met.
The inverter's internal cavity is separated by a partition, and a heat sink and fan with a spaced fin structure are installed. Combined with a capacitor heat-conducting sleeve made of carbon fiber material, the airtightness and efficient heat dissipation are ensured, and the cooling is accelerated by the fan.
It achieves efficient heat dissipation under sealed conditions, ensuring the high protection level of the frequency converter and avoiding performance degradation due to poor heat dissipation.
Smart Images
Figure CN223809700U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to frequency converter technical field, concretely relates to a high protection knapsack type frequency converter structure. BACKGROUND
[0002] Frequency converter is application frequency conversion technology and microelectronic technology, through the change motor working power frequency mode to control the electric power control equipment of AC motor, and frequency converter adjusts the voltage and frequency of output power supply by the opening and closing of internal IGBT, provides the power supply voltage required by motor according to the actual need, and further reaches the purpose of energy saving and speed regulation, and knapsack type frequency converter is one of frequency converters, which is widely used in water pumps and other portable devices.
[0003] The existing knapsack type frequency converter needs to maintain the internal sealing and waterproofing, and at the same time, the heat dissipation of the internal IGBT and other heat generating elements of the frequency converter needs to be maintained. In addition, the capacitor provided in the frequency converter needs to be cooled, and a higher protection structure design is required. UTILITY MODEL CONTENTS
[0004] In view of the prior art, the purpose of the utility model is to provide a high protection knapsack type frequency converter structure, which can ensure the use requirements under the premise of ensuring the sealing of the internal elements.
[0005] In order to achieve the above purpose, the utility model adopts the technical scheme of a high protection knapsack type frequency converter structure, which comprises a frequency converter main body with an installation inner cavity and a cover plate arranged on the top of the frequency converter main body. The installation inner cavity comprises an installation cavity provided with a PCB and a heat dissipation cavity provided with a heat sink and a fan. The heat sink is fixedly arranged relative to the frequency converter main body, and the heat sink is arranged to close the communication opening on the partition plate between the installation cavity and the heat dissipation cavity.
[0006] As a further arrangement of the above scheme, the heat generating elements on the PCB are attached to the heat sink arranged on the surface of the installation cavity. The part of the heat sink in the heat dissipation cavity is arranged as a spaced fin structure.
[0007] As a further arrangement of the above scheme, airflow holes are arranged on both sides of the heat dissipation cavity. The fan is arranged between the heat sink and the airflow holes, and the fan is opposite to the gap direction of the spaced fin structure.
[0008] As a further arrangement of the above scheme, a capacitor heat conduction sleeve is further arranged in the installation inner cavity, which is wrapped outside the capacitor. The capacitor heat conduction sleeve is provided with a mounting ring and a partition plate fixed between the installation cavity and the heat dissipation cavity.
[0009] As a further arrangement of the above-mentioned scheme, the capacitor heat-conducting sleeve extends into the heat-dissipating cavity and is located at one side of the heat-dissipating device and dissipates heat by a fan.
[0010] As a further arrangement of the above-mentioned scheme, the partition plate of the frequency converter body is further provided with a sealing wiring member, and the outer side of the frequency converter body is further fixed with a mounting plate.
[0011] Beneficial effects: the frequency converter structure of the utility model through the partition plate between installation inner cavity is divided, and the heat-dissipating device and capacitor heat-conducting sleeve set up in installation inner cavity not only guarantee the partition plate to install the separation of inner cavity, and can be the heat generated by the work of PCB board is guided to the heat-dissipating cavity, and the fan in the heat-dissipating cavity is accelerated cooling, so as to guarantee that the heat dissipation of frequency converter can meet the work temperature rise, and the installation cavity of PCB board can guarantee good high protection level, avoid being affected. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is frequency converter structure schematic view of the utility model.
[0013] Figure 2 It is frequency converter internal structure schematic view of the embodiment.
[0014] Figure 3 It is frequency converter body structure schematic view of the embodiment.
[0015] Figure 4 It is PCB board and heat-dissipating device structure schematic view of the embodiment.
[0016] Reference signs: 1, frequency converter body;2, cover plate;3, installation inner cavity;31, installation cavity;32, heat-dissipating cavity;34, partition plate;35, sealing wiring member;37, mounting plate;38, air flow hole;4, PCB board;41, heating element;42, capacitor;5, heat-dissipating device;51, fan;52, capacitor heat-conducting sleeve;53, mounting ring sleeve;54, interval fin structure. DETAILED DESCRIPTION
[0017] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described in detail below by combining with the drawings and specific embodiments.It should be explained that the embodiments of the application and the features in the embodiments can be combined with each other without conflict.
[0018] Reference Figures 1-4As shown in the utility model discloses a kind of high protection knapsack type frequency converter structures, including the frequency converter main body 1 with the installation inner cavity 3 of being equipped with cover plate 2 being arranged at the top of frequency converter main body 1, the installation inner cavity 3 includes the installation cavity 31 of being equipped with PCB board 4 and the heat dissipation cavity 32 with radiator 5 and fan 51, the radiator 5 is fixedly arranged relative to frequency converter main body 1, and the radiator 5 is installed after closing the intercommunication opening on the partition 34 between installation cavity 31 and heat dissipation cavity 32.
[0019] As further provided in the above-mentioned scheme, the heat generating element 41 on the PCB board 4 is attached to the radiator 5 located on the surface of the installation cavity 31. The portion of the radiator 5 located in the heat dissipation cavity 32 is designed as a spaced fin structure 54. The heat dissipation cavity 32 is provided with airflow holes 38 on both sides. The fan 51 is arranged between the radiator 5 and the airflow holes 38, and the fan 51 is directly opposite the gap direction of the spaced fin structure 54.
[0020] As further provided in the above-mentioned scheme, the installation inner cavity 3 is further provided with a capacitor heat conduction sleeve 52 wrapped around the outside of the capacitor 42. The capacitor heat conduction sleeve 52 is provided with a mounting ring 53 and a partition fixed between the installation cavity 31 and the heat dissipation cavity 32. The capacitor heat conduction sleeve 52 extends into the heat dissipation cavity 32, and the side of the radiator 5 is cooled by the fan 51. The capacitor heat conduction sleeve 52 is made of carbon fiber material.
[0021] As further provided in the above-mentioned scheme, the partition 34 of the frequency converter main body 1 is further provided with a sealing wiring member 35, and the outside of the frequency converter main body 1 is further fixed with a mounting plate 37.
[0022] Embodiment 1, refer to Figures 1-2 As shown in the frequency converter structure of the present embodiment, the cover plate 2 is arranged on the frequency converter main body 1, and the installation inner cavity 3 is arranged on the frequency converter main body 1 below the cover plate 2. The installation inner cavity 3 is further divided into the installation cavity 31 and the heat dissipation cavity 32 by the partition 34 of the frequency converter main body 1. In order to ensure heat dissipation and protection, the present embodiment opens a communication gap in the partition 34, and fills and closes the communication gap with a radiator 5 matching the size of the gap. The heat generating element 41 on the PCB board 4 is attached to the upper surface of the radiator 5, and the lower surface of the radiator 5 extends into the heat dissipation cavity 32. In addition, the airflow holes 38 are arranged on the heat dissipation cavity 32, and the fan 51 is arranged to cool the radiator 5.
[0023] Refer to Figure 2 As shown in the present embodiment, the position of the capacitor 42 of the PCB board 4 relative to the frequency converter main body 1 is extended and arranged in a cylindrical shape by the partition 34 towards the heat dissipation cavity 32, wrapped around the outside of the capacitor 42, for sealing and protecting the capacitor 42, and also capable of extending the capacitor 42 into the heat dissipation cavity 32. As shown in the present embodiment, the capacitor heat conduction sleeve 52 is wrapped around the outside of the capacitor 42, and the capacitor heat conduction sleeve 52 is fixedly arranged in the installation cavity 31 and the heat dissipation cavity 32 by the mounting ring 53. Figure 3As shown, in order to make the capacitor 42 obtain better heat dissipation effect and accelerate its cooling, the embodiment is further provided with a capacitor heat conduction sleeve 52 made of carbon fiber and other good heat conduction materials, and it is worth noting that the capacitor heat conduction sleeve 52 is fixed on the partition plate 34 through the mounting ring 53 thereon, and a sealing structure such as a sealing silica gel sleeve can be arranged therebetween to ensure protection at the position.
[0024] The frequency converter structure of the utility model separates through the installation inner cavity 3 between the partition plate, the radiator 5 and the capacitor heat conduction sleeve 52 set up in the installation inner cavity 3, both ensure the separation and sealing of the installation inner cavity 3 by the partition plate 34, and can also guide the heat generated by the PCB board 4 to the heat dissipation cavity 32, cooperate the fan 51 in the heat dissipation cavity 32 to accelerate the cooling, so as to guarantee that the heat dissipation of the frequency converter can meet the work temperature rise, and the installation cavity 31 of the PCB board 4 can also guarantee good high protection level, avoid being affected.
[0025] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the utility model scheme and its equivalent technology, the utility model also intends to include these modifications and variations.
Claims
1. A high protection backpack inverter structure, comprising an inverter body (1) with a mounting inner cavity (3) and a cover plate (2) arranged at the top of the inverter body (1), characterized in that: The installation inner cavity (3) comprises an installation cavity (31) provided with a PCB (4) and a heat dissipation cavity (32) provided with a heat sink (5) and a fan (51), the heat sink (5) is fixedly arranged relative to the frequency converter body (1), and the heat sink (5) is arranged to close the communication opening on the partition plate (34) between the installation cavity (31) and the heat dissipation cavity (32).
2. A high protection back-pack inverter structure as claimed in claim 1, wherein: The heat generating element (41) on the PCB (4) is arranged on the surface of the installation cavity (31) of the heat sink (5), and the part of the heat sink (5) in the heat dissipation cavity (32) is arranged as a spaced fin structure (54).
3. A high protection back-pack inverter structure as claimed in claim 2, wherein: The heat dissipation cavity (32) is provided with airflow holes (38) on two sides, the fan (51) is arranged between the heat sink (5) and the airflow holes (38), and the fan (51) is opposite to the gap direction of the spaced fin structure (54).
4. The high-protective back-mounted frequency converter structure according to claim 1, characterized in that: The installation inner cavity (3) is further provided with a capacitor heat conduction sleeve (52) sleeved and wrapped outside the capacitor (42), the capacitor heat conduction sleeve (52) is provided with a mounting ring (53) and a partition plate fixed between the installation cavity (31) and the heat dissipation cavity (32).
5. A high protection back-pack inverter structure as claimed in claim 4, wherein: The capacitor heat conduction sleeve (52) extends into the heat dissipation cavity (32), and is located on one side of the heat sink (5) and is cooled by the fan (51), and the capacitor heat conduction sleeve (52) is made of carbon fiber material.
6. A high protection back-pack inverter structure as claimed in claim 1, wherein: The partition plate (34) of the frequency converter body (1) is further provided with a sealing wiring element (35), and the outer side of the frequency converter body (1) is further fixedly provided with a mounting plate (37).