Frequency conversion device for reducing power consumption of precooling water pump

Abstract

The utility model relates to the technical field of frequency conversion heat dissipation, in particular to a frequency conversion device for reducing power consumption of a pre-cooling water pump. According to the technical scheme, the frequency converter comprises a frequency converter body, an axial flow hole, a base and a heat conduction frame, side edge strips are symmetrically arranged on the rear surface of the frequency converter body, the base and the heat conduction frame are fixed to the two side edge strips through installation bolts, the heat conduction frame is attached to the rear surface of the frequency converter body, fins are arranged on the heat conduction frame at equal intervals, and the axial flow hole is formed in the heat conduction frame. Axial flow holes are formed in the fins and the heat conduction frame at equal intervals, and a negative pressure fan is arranged on the base. According to the utility model, through the cooperation between the structures and the air inducing action of the fan, the air velocity of the heat dissipation air channel is accelerated, the diversity of the direction of the heat dissipation air channel is increased, and the heat dissipation efficiency is improved through the interaction between the heat dissipation fins.

Description

Technical Field

[0001] The utility model relates to the technical field of variable-frequency heat dissipation, in particular to a variable-frequency device for reducing the power consumption of a pre-cooling water pump. Background Technique

[0002] For the dedicated frequency converter part, according to the different operating characteristics of the normal-temperature water pump and the low-temperature water pump, a dedicated frequency converter control circuit and power module are designed. By analyzing the load characteristics of the water pump, the output waveform and frequency adjustment range of the frequency converter are optimized to meet the requirements of the water pump under various working conditions.

[0003] During the working process of the frequency converter, a large amount of heat is often generated. The existing heat dissipation structure of the frequency converter usually conducts the working heat of the frequency converter through the heat dissipation fins, and then interacts with the external environment for natural air cooling. The air duct direction of the heat dissipation fins is single, and there is no interaction between the heat dissipation fins, resulting in low heat dissipation efficiency.

[0004] Therefore, we propose a variable-frequency device for reducing the power consumption of a pre-cooling water pump to solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to propose a variable-frequency device for reducing the power consumption of a pre-cooling water pump aiming at the problems existing in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a variable-frequency device for reducing the power consumption of a pre-cooling water pump, including a frequency converter body, axial flow holes, a base and a heat conduction frame. Side strips are symmetrically arranged on the rear surface of the frequency converter body. The base and the heat conduction frame are both fixed to the two side strips through mounting bolts. The heat conduction frame is attached to the rear surface of the frequency converter body. Each fin is equidistantly arranged on the heat conduction frame. Axial flow holes are equidistantly opened on each fin and the heat conduction frame. A negative pressure fan is arranged on the base.

[0007] Preferably, heat dissipation windows are opened on the frequency converter body, and the two heat dissipation windows are symmetrically distributed with respect to the frequency converter body.

[0008] Preferably, wire grooves are opened at the top and bottom of the frequency converter body, and each interface is equidistantly installed in the wire grooves.

[0009] Preferably, mounting holes are opened on the heat conduction frame. Three mounting holes are in a group, and two groups of mounting holes are symmetrically distributed with respect to the heat conduction frame.

[0010] Preferably, the base is directly above the heat conduction frame. Frames are symmetrically installed on the base through bolts, and the negative pressure fan is fixed inside the frames through bolts.

[0011] Preferably, a perforation adapted to the mounting bolt is formed on the side bar, the mounting bolt is movably inserted into the perforation, and each mounting bolt is threadedly connected between the base and the heat conduction frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] During the use of the frequency conversion device for reducing the power consumption of the pre-cooling water pump of the present utility model, the frequency converter body can be applied to the pre-cooling water pump to work. When the frequency converter body works, its working heat is transferred to the heat conduction frame and the fins. At this time, an external power supply is connected to make the negative pressure fan work. The negative pressure fan sucks the air below the heat conduction frame, so that the air flow rate around the heat conduction frame and the fins is accelerated, thereby dissipating the heat on the heat conduction frame and the fins;

[0014] Furthermore, through the design of the axial flow holes, the air flow interaction between the fins and between the fins and the heat conduction frame is achieved, thereby increasing the diversity of the heat dissipation air ducts and improving the heat dissipation efficiency;

[0015] In the present utility model, by using the action of the fan to draw air, the air flow rate of the heat dissipation air duct is accelerated, and at the same time, the diversity of the heat dissipation air duct direction is increased, and the heat dissipation fins interact with each other to improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 3 is a top view structural schematic diagram of the present utility model;

[0019] Figure 4 is a cross-sectional structural schematic diagram of the axial flow holes of the present utility model.

[0020] Reference Numerals:

[0021] 1, frequency converter body; 2, heat dissipation window; 3, side bar; 4, mounting bolt; 5, axial flow hole; 6, interface; 7, negative pressure fan; 8, frame; 9, base; 10, mounting hole; 11, heat conduction frame; 12, fin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment 1

[0024] As Figures 1 - 4 shown, a frequency conversion device for reducing the power consumption of a pre-cooling water pump proposed by the present utility model includes a frequency converter body 1, an axial flow hole 5, a base 9, and a heat conduction frame 11. Side bars 3 are symmetrically arranged on the rear surface of the frequency converter body 1. The base 9 and the heat conduction frame 11 are both fixed to the two side bars 3 through mounting bolts 4. The heat conduction frame 11 is attached to the rear surface of the frequency converter body 1. A plurality of fins 12 are equidistantly arranged on the heat conduction frame 11. Axial flow holes 5 are equidistantly opened on each of the fins 12 and the heat conduction frame 11. A negative pressure fan 7 is provided on the base 9.

[0025] Based on Embodiment 1:

[0026] During the use of the frequency conversion device for reducing the power consumption of the pre-cooling water pump of the present utility model, the frequency converter body 1 can be applied to the pre-cooling water pump for work. When the frequency converter body 1 is working, its working heat is transferred to the heat conduction frame 11 and the fins 12. At this time, the external power supply is connected to make the negative pressure fan 7 work. The negative pressure fan 7 sucks the air below the heat conduction frame 11, so that the air flow rate around the heat conduction frame 11 and the fins 12 is accelerated, thereby dissipating the heat on the heat conduction frame 11 and the fins 12;

[0027] Furthermore, through the design of the axial flow hole 5, air flow interaction is achieved between the fins 12 and between the fins 12 and the heat conduction frame 11, thereby increasing the diversity of the heat dissipation air duct and improving the heat dissipation efficiency.

[0028] Embodiment 2

[0029] As Figures 1 - 4 shown, a frequency conversion device for reducing the power consumption of a pre-cooling water pump proposed by the present utility model, compared with Embodiment 1, this embodiment further includes: heat dissipation windows 2 are opened on the frequency converter body 1. The two heat dissipation windows 2 are symmetrically distributed with respect to the frequency converter body 1. The heat dissipation windows 2 assist the frequency converter body 1 in heat dissipation.

[0030] Wire grooves are opened at the top and bottom of the frequency converter body 1. A plurality of interfaces 6 are equidistantly installed in the wire grooves. The frequency converter body 1 is electrically connected to the external structure through the interfaces 6.

[0031] The heat-conducting frame 11 is provided with various mounting holes 10. Three mounting holes 10 form a group, and two groups of mounting holes 10 are symmetrically distributed with respect to the heat-conducting frame 11. The inverter body 1 can be fixed at a specified position of the pre-cooling water pump unit through the mounting holes 10 by means of a positioning rivet structure.

[0032] The base 9 is located directly above the heat-conducting frame 11. The frame 8 is symmetrically mounted on the base 9 by bolts. The negative pressure fan 7 is fixed inside the frame 8 by bolts, which facilitates positioning the installation position of the negative pressure fan 7.

[0033] The side bar 3 is provided with through holes adapted to the mounting bolts 4. The mounting bolts 4 are movably inserted into the through holes, and each mounting bolt 4 is threadedly connected between the base 9 and the heat-conducting frame 11.

[0034] It should be noted that the structure of the negative pressure fan 7 is a mature existing technology. Its working principle and internal structure are known to those skilled in the art. The present utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any optional selection according to their needs or convenience.

[0035] The above specific embodiments are merely several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0036] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A frequency conversion device for reducing power consumption of a precooling water pump, comprising a frequency converter body (1), an axial flow hole (5), a base (9) and a heat conduction frame (11), characterized in that: The rear surface of the inverter body (1) is symmetrically provided with side strips (3); the base (9) and the heat-conducting frame (11) are fixed to the two side strips (3) by means of mounting bolts (4); the heat-conducting frame (11) is attached to the rear surface of the inverter body (1); fins (12) are equidistantly provided on the heat-conducting frame (11); axial flow holes (5) are equidistantly provided on each of the fins (12) and the heat-conducting frame (11); and a negative pressure fan (7) is provided on the base (9).

2. A frequency conversion device for reducing power consumption of a precooling water pump according to claim 1, characterized in that: The inverter body (1) is provided with a heat dissipation window (2), and the two heat dissipation windows (2) are symmetrically distributed relative to the inverter body (1).

3. A frequency conversion device for reducing power consumption of a precooling water pump according to claim 1, characterized in that: The inverter body (1) is provided with wire grooves at the top and bottom ends, and various interfaces (6) are installed at equal intervals in the wire grooves.

4. A frequency conversion device for reducing power consumption of a precooling water pump according to claim 1, characterized in that: The heat-conducting frame (11) is provided with mounting holes (10), three mounting holes (10) form a group, and two groups of mounting holes (10) are symmetrically distributed relative to the heat-conducting frame (11).

5. A frequency conversion device for reducing power consumption of a pre-cooling water pump according to claim 1, characterized in that: The base (9) is located directly above the heat-conducting frame (11); a frame (8) is symmetrically mounted on the base (9) via bolts; and the negative pressure fan (7) is fixed inside the frame (8) via bolts.

6. A frequency conversion device for reducing power consumption of a precooling water pump according to claim 1, characterized in that: The side strip (3) is provided with a through hole matched with the mounting bolt (4), the mounting bolt (4) is movably plugged into the through hole, and each mounting bolt (4) is threadedly connected to the base (9) and the heat conducting frame (11).

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