Electrical feed pump frequency converter

Abstract

The utility model relates to the technical field of feed pump frequency conversion, and discloses an electrical feed pump frequency converter which comprises a shell, a panel is installed at one end of the shell, a control unit is installed at one end in the shell, clamping shafts are fixed to the other end of the shell, and limiting blocks are fixed to one ends of the clamping shafts. A fixing piece is arranged at one end of the shell, and a limiting hole is formed in the fixing piece. According to the utility model, through the arrangement of the components such as the fixing sheet, the limiting hole, the limiting block, the clamping shaft and the like, the frequency converter is installed before being used, the frequency converter can be rapidly installed at a corresponding use position through the mutual cooperation of the components, and when the frequency converter needs to be maintained subsequently, the frequency converter can be conveniently disassembled and assembled, so that the maintenance cost is reduced. Therefore, the dismounting convenience of the frequency converter is greatly improved, and the overall use of the frequency converter is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of frequency conversion technology for water supply pumps, specifically to an electrical water supply pump frequency converter. Background Technology

[0002] A water pump is a mechanical device used to provide water pressure, mainly for transporting domestic and industrial water and wastewater. A water pump frequency converter is a type of device in a water pump. By installing a frequency converter in the water pump, the speed of the motor inside the water pump can be adjusted according to the actual usage conditions, thereby enabling the water pump to achieve energy saving, load reduction, and better ensure the stable operation of the water pump.

[0003] Traditional electric water pump frequency converters are installed on one side of the water pump using fixing bolts. Subsequent replacement and maintenance require unscrewing each bolt to remove the converter, which is tedious and inconvenient. Therefore, we propose an electric water pump frequency converter to improve upon these issues. Utility Model Content

[0004] The purpose of this utility model is to provide an electric water pump frequency converter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric water pump frequency converter, comprising a housing, a panel mounted on one end of the housing, a control unit mounted on one end inside the housing, heat dissipation fins mounted on the other end inside the housing, and a cooling fan at the bottom of the heat dissipation fins; a terminal block mounted on the bottom of the control unit; a retaining shaft fixed on the other end of the housing, and a limit block fixed on one end of each retaining shaft; a fixing plate provided on one end of the housing, and a limit hole provided inside the fixing plate.

[0006] Preferably, the limiting hole adopts an irregular shape design, and the limiting hole and the retaining shaft form an engaging structure.

[0007] Preferably, four sets of limiting blocks and limiting holes are provided, and the four sets of limiting blocks and limiting holes are symmetrically distributed about the central axis of the outer shell and the fixing plate, respectively.

[0008] Preferably, a threaded rod is movably provided at one end of the outer casing, a round block is fixed on one side of the threaded rod, and a locking bar is movably provided on the other side of the threaded rod.

[0009] Preferably, the threaded rods are provided in two sets, and the two sets of threaded rods are symmetrically distributed about the central axis of the outer casing.

[0010] Preferably, the length of the locking bar is equal to the length of the outer casing, and the locking bar is adapted to the outer casing.

[0011] Preferably, the top of the inner shell is provided with a mounting groove, the mounting groove is provided with a mounting block, the bottom of the mounting block is provided with a frame, and the inside of the frame is provided with moisture-proof particles, and the bottom of the inside of the moisture-proof particles is provided with a vent hole.

[0012] Preferably, a plurality of ventilation holes are provided, and the plurality of ventilation holes are distributed at equal intervals at the bottom end inside the frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the frequency converter of the electric water pump not only makes it easier to disassemble and replace the frequency converter, making it more convenient to use, but also enables the limiting of the connecting wires installed on the frequency converter to ensure the stable connection of the wires, and also achieves moisture protection for the inside of the frequency converter.

[0014] (1) By setting components such as fixing plates, limiting holes, limiting blocks and clamping shafts, the frequency converter can be installed before use. Through the cooperation of the above components, the frequency converter can be quickly installed in the corresponding use position. When the frequency converter needs to be maintained in the future, it can also be easily disassembled and assembled, which greatly increases the convenience of disassembling and assembling the frequency converter, thus making the frequency converter more convenient to use as a whole.

[0015] (2) By setting up a round block, a threaded rod and a locking bar, the corresponding wire will be connected to the terminal block position at the bottom of the inverter after it is installed. After the wire is installed, the locking bar can be pushed to fit against one side of the wire by rotating the threaded rod to squeeze and limit it, so that the wire is stably connected to the inverter and is not easy to fall off during use.

[0016] (3) By setting up mounting blocks, frames, moisture-proof particles and ventilation holes, the frames are filled with moisture-proof particles and can be installed at the top of the inverter through the engagement between the mounting slot and the mounting blocks. The moisture-proof particles can absorb the moisture generated inside the inverter, keeping the inside of the inverter dry and preventing excessive moisture from damaging its internal components. Attached Figure Description

[0017] Figure 1 This is a side sectional view of the present invention.

[0018] Figure 2 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle;

[0019] Figure 3 This is a front view cross-sectional structural diagram of the frame of this utility model;

[0020] Figure 4 This is a front view structural diagram of the present invention.

[0021] In the diagram: 1. Outer shell; 2. Panel; 3. Control unit; 4. Mounting slot; 5. Fixing plate; 6. Limiting hole; 7. Limiting block; 8. Clip; 9. Cooling fan; 10. Cooling fins; 11. Terminal block; 12. Round block; 13. Threaded rod; 14. Locking strip; 15. Mounting clip; 16. Frame; 17. Moisture-proof particles; 18. Vent hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figure 1-4 An electric water pump frequency converter includes a housing 1, a panel 2 installed at one end of the housing 1, a control unit 3 installed at one end inside the housing 1, a heat sink 10 installed at the other end inside the housing 1, and a cooling fan 9 at the bottom of the heat sink 10. A terminal block 11 is installed at the bottom of the control unit 3. A retaining shaft 8 is fixed at the other end of the housing 1, and a limit block 7 is fixed at one end of each retaining shaft 8. A fixing plate 5 is provided at one end of the housing 1, and a limit hole 6 is provided inside the fixing plate 5. The limit hole 6 adopts an irregular shape design to facilitate the replacement and maintenance of the frequency converter after disassembly and assembly. The limit hole 6 and the retaining shaft 8 form a locking structure. There are four sets of limit blocks 7 and limit holes 6, and the four sets of limit blocks 7 and limit holes 6 are symmetrically distributed about the central axis of the housing 1 and the fixing plate 5, respectively. The four sets of symmetrically distributed limit blocks 7 and limit holes 6 make the installation stability of the frequency converter stronger.

[0024] Specifically, such as Figure 1 As shown, first fix the fixing plate 5 in the corresponding position with fixing bolts, then align the limiting block 7 at one end of the housing 1 with the upper part of the limiting hole 6 and insert it, then push the housing 1 downward so that the locking shaft 8 engages with the bottom end inside the limiting hole 6, thus installing the frequency converter for use. When disassembly is required later, push the housing 1 upward so that the locking shaft 8 on one side moves to the upper part of the limiting hole 6, and then pull the housing 1 to one end to remove it.

[0025] Example 2: A threaded rod 13 is movably provided at one end of the outer shell 1. A round block 12 is fixed on one side of the threaded rod 13, and a locking bar 14 is movably provided on the other side of the threaded rod 13. There are two sets of threaded rods 13, which are symmetrically distributed about the central axis of the outer shell 1. They can stably push the locking bar 14 to move, so that the locking bar 14 has a better locking effect. The length of the locking bar 14 is equal to the length of the outer shell 1, and the locking bar 14 is compatible with the outer shell 1.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, after the cable is installed at the terminal block 11, hold the round block 12 and rotate it in one direction. The threaded rod 13 pushes the locking strip 14 to fit against the outer wall of the cable for compression and limiting.

[0027] Example 3: The top of the inner shell 1 is provided with a mounting groove 4, the inside of the mounting groove 4 is provided with a mounting block 15, the bottom of the mounting block 15 is provided with a frame 16, and the inside of the frame 16 is provided with moisture-proof particles 17. The bottom of the inside of the moisture-proof particles 17 is provided with a vent hole 18. There are several vent holes 18, and the several vent holes 18 are evenly distributed at the bottom of the inside of the frame 16. The evenly distributed vent holes 18 facilitate the uniform and comprehensive absorption of moisture inside the frequency converter.

[0028] Specifically, such as Figure 1 Figure 3 As shown, open the frame 16 and put the moisture-proof particles 17 inside. Then, close the frame 16 and engage the mounting clip 15 inside the mounting slot 4 to install the moisture-proof particles 17 inside the outer shell 1. Then, the moisture inside the outer shell 1 is absorbed through the vent 18 to keep the inside of the outer shell 1 dry.

[0029] Working principle: When using this utility model, the frequency converter is first installed. During installation, the fixing plate 5 is fixed in the corresponding position with fixing bolts. Then, the limiting block 7 at one end of the outer shell 1 is aligned with the upper part of the limiting hole 6 and inserted. Then, the outer shell 1 is pushed down so that the locking shaft 8 is engaged with the bottom end of the limiting hole 6, thus installing the frequency converter. After installation, the corresponding wire is connected to the terminal block 11. After the wire is installed, the round block 12 is held and rotated in one direction. The locking strip 14 is pushed to the outer wall of the wire by the threaded rod 13 to squeeze and limit it. During use, the control unit 3 is operated through the panel 2. The control unit 3 controls the water pump accordingly. During the operation, the heat dissipation fins 10 conduct heat and then dissipate heat through the cooling fan 9. In addition, the moisture-proof particles 17 placed inside the upper frame 16 of the frequency converter can also absorb the moisture generated inside the outer shell 1, keeping the inside of the panel 2 dry.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric water pump frequency converter, comprising a housing (1), characterized in that: A panel (2) is installed at one end of the outer shell (1), a control unit (3) is installed at one end inside the outer shell (1), a heat sink (10) is installed at the other end inside the outer shell (1), and a heat sink fan (9) is installed at the bottom end of the heat sink (10). A terminal block (11) is installed at the bottom end of the control unit (3). A retaining pin (8) is fixed at the other end of the outer shell (1), and a limit block (7) is fixed at one end of the retaining pin (8). A fixing plate (5) is provided at one end of the outer shell (1), and a limit hole (6) is provided inside the fixing plate (5).

2. The frequency converter for an electrical water supply pump according to claim 1, characterized in that: The limiting hole (6) adopts an irregular shape design, and the limiting hole (6) and the locking shaft (8) form a locking structure.

3. The frequency converter for an electric water supply pump according to claim 1, characterized in that: The limiting block (7) and the limiting hole (6) are provided in four sets, and the four sets of the limiting block (7) and the limiting hole (6) are symmetrically distributed about the central axis of the outer shell (1) and the fixing piece (5).

4. The frequency converter for an electrical water supply pump according to claim 1, characterized in that: One end of the outer shell (1) is movably provided with a threaded rod (13), and a round block (12) is fixed on one side of the threaded rod (13), and a locking bar (14) is movably provided on the other side of the threaded rod (13).

5. The frequency converter for an electrical water supply pump according to claim 4, characterized in that: The threaded rods (13) are provided in two sets, and the two sets of threaded rods (13) are symmetrically distributed about the central axis of the outer shell (1).

6. The frequency converter for an electrical water supply pump according to claim 4, characterized in that: The length of the locking bar (14) is equal to the length of the outer shell (1), and the locking bar (14) is adapted to the outer shell (1).

7. The frequency converter for an electrical water supply pump according to claim 1, characterized in that: The top of the outer shell (1) is provided with an installation groove (4), and an installation block (15) is installed inside the installation groove (4). A frame (16) is installed at the bottom of the installation block (15), and moisture-proof particles (17) are provided inside the frame (16). A vent hole (18) is provided at the bottom of the moisture-proof particles (17).

8. The frequency converter for an electrical water supply pump according to claim 7, characterized in that: The ventilation holes (18) are provided in a plurality of manner, and the plurality of ventilation holes (18) are distributed at equal intervals at the bottom end inside the frame (16).

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