Volute fan backpack type driver

Abstract

The utility model provides a volute fan backpack type driver which comprises a fan body and a frequency converter installed at one end of the fan body, an embedded heat dissipation window is arranged on the fan body, a heat dissipation part is arranged at the bottom of the frequency converter, the heat dissipation part is arranged in the heat dissipation window after the frequency converter is installed, and the frequency converter is arranged in the heat dissipation window. The mounting surface of the frequency converter is an arc-shaped inner concave surface, and the heat dissipation part is arranged at the center of the inner concave surface. According to the backpack driver of the volute fan, the radiating window is arranged on the fan body, the frequency converter can be directly assembled on the fan body, and the radiating part is arranged in the radiating window, so that the problems of electromagnetic compatibility caused by a long output line of the frequency converter and interference on weak current signals of a sensor, an instrument and the like are solved; and meanwhile, due to the design of the sawtooth arc heat dissipation teeth, the effects that the noise of the fan is not increased and the wind resistance is not increased can be achieved, and the performance parameters of the original fan are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to central air conditioning air supply fan technical field, especially a volute fan back -carrying type driver. BACKGROUND

[0002] Frequency converter as a kind of current transformer has been widely used in air conditioning and other fields, mainly for adjusting the speed of compressor. Volute fan back -carrying type driver is widely distributed due to installation, after the centralized installation of frequency converter, the output line of frequency converter to fan is longer, so line loss is big, electromagnetic compatibility is poor, it is very easy to interfere with temperature sensor and other sensor weak signal equipment;If frequency converter is installed near fan, it needs special electric cabinet and cooling fan to cool it, so that fan as a whole is difficult to adapt to the originally small installation space. UTILITY MODEL CONTENTS

[0003] (One) technical problem to be solved

[0004] The utility model to be solved problem provides a volute fan back -carrying type driver, to overcome the problems, such as other inverter signal and insufficient installation space, after the installation of central air conditioning fan frequency converter in prior art.

[0005] (Two) technical scheme

[0006] To solve the technical problem, the utility model provides a volute fan back -carrying type driver, including fan body and the frequency converter installed in the one end of the fan body, the embedded heat dissipation window is equipped on the fan body, the bottom of the frequency converter is equipped with the heat dissipation part, the heat dissipation part is placed in the heat dissipation window after the installation of the frequency converter, specifically, the mounting surface of the frequency converter is the arc inner concave surface, the heat dissipation part is arranged at the center of the inner concave surface, the inner concave surface is attached after installation with the fan body, the frequency converter is directly installed on the surface of fan body and can shorten the length of output line, so as to solve the problem of poor signal.

[0007] In some embodiments, the fan body includes cylindrical main body part and installation part arranged on one side of the main body part, the curvature of the inner concave surface is same with the main body part, the heat dissipation window is arranged on the main body part, the main body part is used for installing fan, etc., and when it operates, the heat dissipation part at the heat dissipation window can be blown, so as to realize the cooling treatment of the frequency converter.

[0008] In some embodiments, the heat dissipation part is composed of a plurality of rows of equidistantly arranged racks, the lower end surface of the rack is attached to the inner concave surface and the upper end surface is horizontally arranged, a plurality of teeth are uniformly distributed on the rack, and the rack as a whole is zigzag-shaped, which can improve the heat dissipation effect of the heat dissipation part when blowing.

[0009] In some embodiments, an arc-shaped inner recess is arranged between the teeth, and a heat dissipation channel is formed between the inner concave surface and the rack, which can improve the heat dissipation effect.

[0010] In some embodiments, the horizontal angle between the center of the opening and the frequency converter mounting position is 40-50°, and the arc of the inner concave surface is 80-100°.

[0011] (Three) beneficial effects

[0012] The utility model provides a kind of volute fan backpack type driver, by being provided with heat dissipation window on fan body, frequency converter can be directly assembled on fan body and heat dissipation part is placed in heat dissipation window, solve the electromagnetic compatibility and the problem of weak electric signal interference to sensor, instrument etc. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0014] Fig. 1 It is a perspective view of the volute fan backpack type driver of the utility model;

[0015] Fig. 2 It is another perspective view of the volute fan backpack type driver of the utility model;

[0016] Fig. 3 It is a frequency converter bottom perspective view of the volute fan backpack type driver of the utility model;

[0017] Fig. 4 It is another perspective view of the frequency converter of the volute fan backpack type driver of the utility model;

[0018] Fig. 5The utility model relates to a fan body perspective view of a volute fan back-carrying type driver.

[0019] Fig. 6 The utility model relates to a front view of a volute fan back-carrying type driver.

[0020] The corresponding component names of various reference numerals in the drawing are as follows: 1, fan body; 101, main body part; 102, mounting part; 2, frequency converter; 3, heat dissipation window; 4, heat dissipation part; 5, inner concave surface; 6, opening; 7, heat dissipation channel. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be described in detail below with reference to the drawings.

[0022] The embodiments of the present application will be described in detail below with reference to the drawings.

[0023] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the teachings herein one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that an aspect described herein can be implemented both as any number of software and / or hardware configurations and that the examples described herein are not the only way to implement such aspects. For example, an item or article of manufacture can comprise any one or combination of systems or apparatuses or methods for implementing this disclosure as taught by any one of the aspects described herein.

[0024] It should also be noted that the graphical illustrations provided in the following embodiments are only to schematically illustrate the basic concepts of the present application, and only the components related to the present application are shown in the drawings, not drawn according to the number, shape and size of the components when actually implemented, and the shapes, numbers and proportions of the components when actually implemented can be arbitrarily changed, and the layout pattern of the components can also be more complex.

[0025] Additionally, in the following description, specific details are provided to

[0026] Referring to Figs. 1-6 The utility model provides a volute fan back -carrying type driver, including fan body 1 and the frequency converter 2 of installing in fan body 1 one end, be equipped with the heat dissipation window 3 of embedded of fan body 1, the bottom of frequency converter 2 is equipped with the heat dissipation part 4, and the heat dissipation part 4 is placed in heat dissipation window 3 after the installation of frequency converter 2, specifically, the mounting surface of frequency converter 2 is the concave surface 5 of arc, and the heat dissipation part 4 is arranged at the center of concave surface 5, and fan body 1 includes the main part 101 of cylindrical and the installation part 102 of setting up in main part 101 one side, and the concave surface 5 is same with main part 101, and the heat dissipation window 3 is set up in main part 101, wherein the opening of heat dissipation window 3 is rectangular, and the overall shape of heat dissipation part 4 corresponds, and when assembling, heat dissipation part 4 is inserted into heat dissipation window 3, and the concave surface 5 of frequency converter 2 is attached on the surface of main part 101 located in the periphery of heat dissipation window 3 as mounting surface, so as to realize the direct installation of frequency converter 2 on fan body 1, need not separate assembly and is connected through long cable, solve the problem of electromagnetic compatibility and weak electric signal interference to sensor, instrument etc. of frequency converter output line long, overcome DU / DT simultaneously to the damage of motor coil insulation, prolong the service life of motor.

[0027] In some embodiments, as Figs. 2-5As shown, the heat dissipation part 4 is composed of multiple rows of equidistantly arranged racks, the lower end surfaces of the racks are attached to the inner concave surface 5 and the upper end surfaces are horizontally arranged, multiple teeth are uniformly arranged on the racks, and arc-shaped inner concave parts are arranged between the teeth, wherein the racks are integrally formed with the inner concave surface 5, the outer surface of the heat dissipation part 4 is integrally horizontally arranged, the teeth on a single rack are arranged in a zigzag shape, the heat dissipation channels 7 are formed between the inner concave surface 5 and the racks, the heat dissipation channels 7 can increase the blowing area of the heat dissipation part 4 as a whole, which is beneficial to air circulation, thereby improving the heat dissipation performance of the heat dissipation part 4 as a whole. Since the heat dissipation part 4 is placed inside the fan body 1 through the heat dissipation window 3, air flow can directly pass through the heat dissipation part 4 when the fan operates inside the fan body 1, and the heat dissipation part 4 is cooled by blowing, and the design of the zigzag arc heat dissipation teeth can achieve the effect of not increasing the noise and wind resistance of the fan, while maintaining the performance parameters of the original fan. In the embodiment, the opening 6 is circular on one side of the main body 101 of the fan body 1, the horizontal angle between the center of the opening 6 and the installation position of the frequency converter 2 is 40-50°, and the radian of the inner concave surface 5 is 80-100°. According to the actual installation requirements, the installation angle of the frequency converter 2 and the radian of the inner concave surface 5 can be adjusted appropriately, so as to improve the heat dissipation effect of the heat dissipation part 4 as much as possible. The accessories and cables can be put into the fan body 1 from the opening 6, and the frequency converter 2 is also provided with multiple terminal posts at both ends, which can be connected in circuit.

[0028] The volute fan back-mounted driver provided by the utility model can directly assemble the frequency converter on the fan body and place the heat dissipation part in the heat dissipation window, solves the problems of electromagnetic compatibility and interference to weak electric signal such as sensors and instruments caused by long output line of the frequency converter, can directly cool the frequency converter, can achieve the effect of not increasing the noise and wind resistance of the fan through the design of the zigzag arc heat dissipation teeth, and maintains the performance parameters of the original fan.

[0029] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, some improvements and decorations can be made without departing from the technical principles of the utility model, and these improvements and decorations should also be regarded as the protection range of the utility model.

Claims

1. A volute fan back-drive driver, comprising a fan body (1) and a frequency converter (2) installed at one end of the fan body (1), characterized in that: The fan body (1) is provided with an embedded heat dissipation window (3), the bottom of the frequency converter (2) is provided with a heat dissipation part (4), and the heat dissipation part (4) is arranged in the heat dissipation window (3) after the frequency converter (2) is installed.

2. The volute fan belt drive of claim 1, wherein: The mounting surface of the frequency converter (2) is an arc-shaped concave surface (5), and the heat dissipation part (4) is arranged at the center of the concave surface (5).

3. The volute fan belt drive of claim 2, wherein: The fan body (1) comprises a cylindrical main body part (101) and a mounting part (102) arranged on one side of the main body part (101), the concave surface (5) has the same curvature as the main body part (101), and the heat dissipation window (3) is arranged on the main body part (101).

4. The volute fan belt drive of claim 2, wherein: The heat dissipation part (4) is composed of a plurality of rows of equidistantly arranged racks.

5. The volute fan belt drive of claim 4, wherein: The lower end surface of the rack is attached to the concave surface (5), and the upper end surface is horizontally arranged, and a plurality of tooth parts are uniformly arranged on the rack.

6. The volute fan belt drive of claim 1, wherein: One side of the main body part (101) of the fan body (1) is provided with a circular opening (6).

7. The volute fan belt drive of claim 5 wherein: Arc-shaped concave parts are arranged between the tooth parts.

8. The volute fan belt drive of claim 4, wherein: The concave surface (5) and the rack form a heat dissipation channel (7) therebetween.

9. The volute fan belt drive of claim 6, wherein: The horizontal included angle between the center of the opening (6) and the mounting position of the frequency converter (2) is 40-50°.

10. The volute fan belt drive of claim 2, wherein: The curvature of the concave surface (5) is 80-100°.

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