Centrifugal fan impeller and fan

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses a centrifugal fan impeller and a fan, the centrifugal fan impeller comprises a first mounting disc and a second mounting disc, the center of the first mounting disc is provided with a motor mounting disc, and the opposite ends of the first mounting disc and the second mounting disc are fixedly connected with a plurality of blades; a plurality of heat dissipation grooves are formed in the bottom of the first installation disc, through holes are formed in the centers of the blades, a plurality of air inlets and a plurality of air outlets are formed in the second installation disc and the first installation disc respectively, and air inlet grooves are formed in the side wall face of the second installation disc. According to the utility model, airflow enters the middle part through the ventilation cavity, enters the penetrating through hole from the air inlet and is finally guided out from the air outlet, and the air inlet groove is formed in the side wall surface of the second mounting disc, so that rapid circulation of air is facilitated, the suction amount of air is increased, heat of the motor is taken away, and the heat dissipation effect is better; and reinforcing steel bars are fixedly mounted on the blades, so that the blades are firmer and more durable.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal fan technical field especially, relates to a centrifugal fan impeller and fan. BACKGROUND

[0002] Centrifugal fan is relied on inputted mechanical energy, improves gas pressure and sends away gas, and it is a kind of driven fluid machinery.Centrifugal fan is widely used in factory, mine, tunnel, cooling tower, vehicle, ship and the ventilation, dust removal and cooling of building;Ventilation and air induction of boiler and industrial furnace;Cooling and ventilation in air conditioning equipment and household appliance equipment;Grain drying and selection and sending;Wind tunnel air source and air cushion ship's inflation and propulsion etc.

[0003] Through the retrieval application No. CN202323271012.1 discloses a centrifugal fan impeller and centrifugal fan, the front wheel disc of the centrifugal fan impeller and the rear wheel disc opposite to the front wheel disc are provided, 15 pieces of backward inclined blades are arranged in the space between the front wheel disc and the rear wheel disc, the backward inclined blades are arranged in the form of circular array with the center of the impeller as the axis, the backward inclined blades divide the space between the front wheel disc and the rear wheel disc into 15 air channels, the width of the air channel gradually increases from the side close to the center to the side close to the outer edge of the impeller, the first air channel opening is formed on the side close to the center of each air channel, the second air channel opening is formed on the side close to the outer edge of the impeller of each air channel, the opening angle corresponding to the first air channel opening is smaller than the opening angle corresponding to the second air channel opening, and the opening angle corresponding to the second air channel opening is 24°. Through the application, the problems of small wind power and air volume provided by the impeller of the centrifugal fan and large noise of the centrifugal fan in the related art are solved.

[0004] In the above prior art, the impeller is driven to work by the motor, and the heat generated by the motor enters the wheel cavity through the mortise and air channel, but the heat dissipation effect is poor.

[0005] Therefore, we propose a centrifugal fan impeller and fan. UTILITY MODEL CONTENTS

[0006] The utility model mainly solves the technical problems in the prior art, and provides a centrifugal fan impeller and fan.

[0007] In order to realize the above purpose, the utility model adopts the following technical scheme, a centrifugal fan impeller, including first installation disc and second installation disc, the center of first installation disc is installed with motor installation disc, the opposite end of first installation disc and second installation disc is all fixedly connected with a plurality of blades, the bottom of first installation disc is equipped with a plurality of heat dissipation grooves, the center of blade is all equipped with through-hole, a plurality of air inlets and a plurality of air outlets are respectively formed in second installation disc and first installation disc, and the side wall surface of second installation disc is all equipped with air inlet groove.

[0008] As preferred, the reinforcing steel bars are fixedly installed on the blades and located on both sides of the through holes.

[0009] As preferred, the first mounting disc, the second mounting disc and the blades form a centrifugal fan impeller, and the ventilation cavities are formed between the adjacent two blades.

[0010] As preferred, the motor mounting disc is arranged at the inner side of the first mounting disc, and the heat dissipation grooves are annular structures.

[0011] As preferred, the blades are multiple and arranged in an inclined manner in the middle of the first mounting disc and the second mounting disc.

[0012] As preferred, the air inlet and the air outlet are matched with the through holes.

[0013] The fan comprises the centrifugal fan impeller.

[0014] Advantages

[0015] The centrifugal fan impeller and the fan have the following advantages:

[0016] 1. The centrifugal fan impeller and the fan, the airflow enters the middle through the ventilation cavities, the airflow enters the through holes from the air inlets and is finally guided out from the air outlets, and the air inlets arranged on the side walls of the second mounting disc facilitate the rapid circulation of air, thereby increasing the suction amount of the gas and carrying away the heat of the motor, and the heat dissipation effect is better.

[0017] 2. The centrifugal fan impeller and the fan, the reinforcing steel bars are fixedly installed on the blades, and the addition of the reinforcing steel bars makes the blades more solid and durable. DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.

[0019] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not define the limiting conditions for the implementation of the present application, so they do not have technical substantial significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0020] Fig. 1This is a three-dimensional structural schematic diagram of the present utility model;

[0021] Fig. 2 This is a schematic diagram showing the disassembly of the first and second mounting discs of this utility model;

[0022] Fig. 3 This is a schematic diagram showing the detailed structure of the blade of this utility model.

[0023] Legend:

[0024] 1. First mounting plate; 101. Motor mounting plate; 102. Heat dissipation slot; 103. Air outlet; 2. Second mounting plate; 201. Air inlet; 202. Air inlet slot; 3. Blade; 301. Ventilation cavity; 302. Through hole; 4. Reinforcing steel bar. Detailed Implementation

[0025] 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.

[0026] Example: A centrifugal fan impeller, such as Figs. 1-3 As shown, the device includes a first mounting plate 1 and a second mounting plate 2. A motor mounting plate 101 is mounted at the center of the first mounting plate 1, located inside the first mounting plate 1 for mounting a motor. Multiple heat dissipation grooves 102 are formed at the bottom of the first mounting plate 1, creating multiple airflow channels to promote air circulation. Multiple blades 3 are fixedly connected to opposite ends of both the first mounting plate 1 and the second mounting plate 2. The first mounting plate, the second mounting plate 2, and the blades 3 form a centrifugal fan impeller. A ventilation cavity 301 is formed between adjacent blades 3. The multiple blades 3 are arranged at an angle on the first mounting plate 1 and the second mounting plate 2. In the middle of mounting plate 2, air circulation is accelerated, bringing the air closer to the center of the first mounting plate 1 and the second mounting plate 2. Multiple blades 3 have through holes 302 at their center positions. Multiple air inlets 201 are provided on the second mounting plate 2 at positions corresponding to the through holes 302. Multiple air outlets 103 are provided on the first mounting plate 1 at positions corresponding to the through holes 302. Rectangular air inlet slots 202 are provided on the side wall of the second mounting plate 2 at the center of adjacent air inlets 201 to facilitate rapid air circulation. Reinforcing steel bars 4 are fixedly installed on each blade 3 on both sides of the through holes 302, making the blades 3 more robust and durable.

[0027] The application further provides a fan comprising the centrifugal fan impeller, and the specific structure of the centrifugal fan impeller is referred to the above-mentioned embodiments.

[0028] The working principle of the utility model:

[0029] In use, the motor is installed at the motor mounting disc 101, airflow enters the middle part through the ventilation cavity 301, the plurality of blades 3 are arranged in an inclined manner in the middle part of the first mounting disc 1 and the second mounting disc 2, air flow is accelerated, airflow enters the through hole 302 from the air inlet 201 and is finally guided out from the air outlet 103, and the air inlet groove 202 is arranged on the side wall of the second mounting disc 2, so that the air flow is facilitated, the air intake amount is increased, and the motor heat is removed.

[0030] In use, the reinforcing steel bars 4 are fixedly installed on the blades 3, and the reinforcing steel bars 4 make the blades 3 more solid and durable.

[0031] For the convenience of description, spatial relative terms such as "above", "upper", "on", "top", and the like can be used herein to describe the spatial relationship between one device or feature and another device or feature as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawings is inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0032] It should be noted that the terms "first", "second", and the like in the specification and claims of the application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0033] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan impeller, characterized in that: It includes a first mounting plate (1) and a second mounting plate (2). A motor mounting plate (101) is mounted at the center of the first mounting plate (1). Multiple blades (3) are fixedly connected to the opposite ends of the first mounting plate (1) and the second mounting plate (2). Multiple heat dissipation grooves (102) are opened at the bottom of the first mounting plate (1). A through hole (302) is opened at the center of each blade (3). Multiple air inlets (201) and multiple air outlets (103) are opened on the second mounting plate (2) and the first mounting plate (1), respectively. An air inlet groove (202) is opened on the side wall of the second mounting plate (2).

2. The centrifugal fan impeller according to claim 1, characterized in that: Reinforcing steel bars (4) are fixedly installed on both sides of the blade (3) and the through hole (302).

3. A centrifugal fan impeller according to claim 1, characterized in that: The first mounting plate, the second mounting plate (2) and the blades (3) form a centrifugal fan impeller, and a ventilation cavity (301) is formed between two adjacent blades (3).

4. A centrifugal fan impeller according to claim 1, characterized in that: The motor mounting plate (101) is located inside the first mounting plate (1), and the heat dissipation groove (102) has a ring structure.

5. A centrifugal fan impeller according to claim 1, characterized in that: The number of blades (3) is multiple and they are arranged at an angle between the first mounting plate (1) and the second mounting plate (2).

6. A centrifugal fan impeller according to claim 1, characterized in that: The air inlet (201) and air outlet (103) are both adapted to the through hole (302).

7. A fan, characterized in that, Including a centrifugal fan impeller as described in any one of claims 1-6.

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