Fan with stable structure

Abstract

The utility model relates to the field of fans, and discloses a fan with a stable structure, which comprises a casing, an impeller and a motor, the impeller and the motor are mounted in the casing, a mounting groove matched with the motor is arranged in the casing, a plurality of connecting supports are arranged on the circumferential outer wall of the motor in a protruding manner, and a plurality of connecting grooves matched with the connecting supports and provided with openings at the front ends are arranged on the inner wall of the mounting groove. The motor is mounted in the mounting groove, and the connecting support is correspondingly mounted in the connecting groove and locked and fixed through a threaded fastener. The connecting support is limited in the connecting groove, the connecting support is matched with the connecting groove to bear larger circumferential torsion, and the stability of the motor in the circumferential direction is improved. Moreover, shaking force generated in the circumferential direction of the motor during rotation of the motor acts on the connecting groove through the connecting bracket, so that the influence on a threaded fastener for fixing can be reduced; therefore, the stability of motor installation is improved.

Description

Technical Field

[0001] The utility model relates to the field of fans, in particular to a fan with a stable structure. Background Art

[0002] Centrifugal fans are widely used in both industrial and consumer applications and primarily consist of an impeller, a motor, and a housing. The motor is typically installed by providing a first connection hole on the front or rear end of the motor, a second connection hole corresponding to the first connection hole on the housing, and bolts connected to the first and second connection holes to secure the motor within the housing. For example, a centrifugal fan disclosed in utility model patent No. CN202122022388.3 uses this motor mounting structure to mount the motor. The structural strength of this motor mounting structure is insufficient. For example, if there is significant vibration or impact in the working environment, long-term use can lead to structural loosening. A loose motor mounting structure can increase the overall vibration of the fan, affecting the operating efficiency of the equipment. An unstable mounting structure can easily cause resonance, resulting in increased noise, which can affect the working environment and operator comfort. Furthermore, due to vibration and instability, the motor consumes more energy to maintain normal operation. An unstable centrifugal fan motor mounting structure not only affects the operating efficiency and lifespan of the equipment but also leads to a series of problems, including increased noise, safety hazards, and increased maintenance costs. Therefore, the stability of the motor installation structure must be ensured to ensure the normal and safe operation of the equipment. Utility Model Content

[0003] The main purpose of the utility model is to provide a fan with a stable structure, aiming to improve the stability of the motor installation structure.

[0004] The utility model proposes a fan with a stable structure, comprising a casing, an impeller and a motor installed in the casing, a mounting groove adapted to the motor provided in the casing, a plurality of connecting brackets protruding from the circumferential outer wall of the motor, a plurality of connecting grooves adapted to the connecting brackets provided on the inner wall of the mounting groove, the motor being installed in the mounting groove, and the connecting brackets being correspondingly inserted into the connecting grooves and locked and fixed by threaded fasteners.

[0005] Preferably, the connecting brackets are provided with at least two groups, and the two groups of connecting brackets are distributed front and back in the axial direction of the motor. The connecting grooves are provided with at least two groups, and their depths are respectively adapted to the positions of the connecting brackets. The connecting brackets are fixed on the bottom surface of the connecting grooves.

[0006] Preferably, the bottom surfaces of the two groups of connecting grooves are respectively close to both ends of the installation groove.

[0007] Preferably, the connecting bracket is L-shaped, including a first connecting part and a second connecting part perpendicular to each other, the first connecting part is connected and fixed on the motor, and the second connecting part is connected and fixed in the connecting groove; the two groups of connecting brackets distributed front and back are inverted with each other.

[0008] Preferably, a first connecting hole is provided on the second connecting portion, and a second connecting hole is provided on the bottom surface of the connecting groove. Bolts are installed in the corresponding first connecting hole and second connecting hole to connect and fix the connecting bracket in the installation groove.

[0009] Preferably, the casing includes a relatively connected air duct volute and a main outer shell, the impeller is located in the air duct volute, the air inlet end of the air duct volute is installed with an air inlet cover, and the air outlet end of the air duct volute is installed with an air outlet assembly; the mounting groove is arranged on the main outer shell, and the outer end cover of the mounting groove is provided with a heat dissipation cover.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The fan housing of the utility model is provided with a mounting slot adapted for the motor. A plurality of connecting brackets protrude from the circumferential outer wall of the motor. The inner wall of the mounting slot is provided with a plurality of connecting slots adapted for the connecting brackets and open at the front end. The motor is mounted in the mounting slot, and the connecting brackets are correspondingly inserted into the connecting slots and secured by threaded fasteners. The connecting brackets are positioned within the connecting slots, and the connection brackets cooperate with the connecting slots to withstand greater circumferential torque, thereby increasing the circumferential stability of the motor. Furthermore, the circumferential shaking force generated by the motor's rotation acts on the connecting slots through the connecting brackets, reducing the impact on the threaded fasteners used for fixing the motor, thereby improving the stability of the motor installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structural decomposition of the fan of the present invention.

[0013] Figure 2 This is a schematic diagram of the structural decomposition of the casing of the fan of the present invention.

[0014] Figure 3 This is a structural schematic diagram of the main casing of the fan of the present invention.

[0015] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0016] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout identify the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0018] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0019] Reference Figures 1 to 3 The present invention provides a structurally stable blower comprising a housing, an impeller 4 mounted within the housing, and a motor 3. The housing comprises a duct volute 2 and a main housing 1, which are connected relative to each other. The impeller 4 is located within the duct volute 2. An air inlet hood 5 is mounted at the air inlet end of the duct volute 2, and an air outlet assembly 6 is mounted at the air outlet end of the duct volute 2. The motor 3 is mounted within the main housing 1. A heat dissipation hood 7 is connected to the rear of the main housing 1 and faces the main housing 1.

[0020] The main housing 1 is provided with a mounting groove 11 for mounting the motor 3. The motor 3 is mounted in the mounting groove 11, and the output shaft of the motor 3 is connected to the impeller 4.

[0021] The circumferential outer wall of the motor 3 is protruded with a plurality of connecting brackets 31, and the inner wall of the mounting groove 11 is provided with a plurality of connecting grooves 12 adapted to the connecting brackets 31. The connecting brackets 31 are correspondingly installed in the connecting grooves 12 and locked and fixed by threaded fasteners.

[0022] Connecting bracket 31 is positioned within connecting groove 12. The combination of connecting bracket 31 and connecting groove 12 allows them to withstand greater circumferential torque, thereby increasing the circumferential stability of motor 3. Furthermore, the circumferential swaying force generated by motor rotation acts on connecting groove 12 via connecting bracket 31, minimizing the impact on the threaded fasteners used for securing the motor, thereby preventing them from loosening.

[0023] Specifically, there are two groups of connecting brackets 31, the first group of connecting brackets 311 and the second group of connecting brackets 312 are distributed front and rear in the axial direction of the motor, the second group of connecting brackets 312 are close to the axial rear end of the motor, and the second group of connecting brackets 311 are close to the axial middle part of the motor.

[0024] There are two groups of connecting grooves 12, and their depths are adapted to the positions of the connecting brackets. The first group of connecting grooves 121 is used to install the first group of connecting brackets 311, and the second group of connecting grooves 122 is used to install the second group of connecting brackets 312. The bottom surface of the first group of connecting grooves 121 is close to the outer end of the installation groove 11, and the bottom surface of the second group of connecting grooves 122 is close to the inner end of the installation groove 11. The two groups of connecting brackets are fixed on the bottom surfaces of the two groups of connecting grooves.

[0025] The stability of the motor installation is further enhanced by the connection and cooperation between the two groups of connecting brackets distributed at the front and rear and the two groups of connecting grooves.

[0026] The connecting bracket 31 is L-shaped and includes a first connecting portion and a second connecting portion that are perpendicular to each other. The first connecting portion is connected and fixed to the motor 3, while the second connecting portion is connected and fixed within the connecting slot 12. The two sets of connecting brackets, located front and back, are inverted. Specifically, the second connecting portion has a first connecting hole, and the bottom surface of the connecting slot 12 has a second connecting hole. Bolts are tightened in the corresponding first and second connecting holes to secure the connecting bracket 31 within the mounting slot 12.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A fan with a stable structure, comprising a casing, an impeller installed in the casing and a motor, characterized in that: A mounting groove adapted to the motor is provided in the housing, a plurality of connecting brackets are protruding from the circumferential outer wall of the motor, a plurality of connecting grooves adapted to the connecting brackets are provided on the inner wall of the mounting groove, the motor is installed in the mounting groove, and the connecting brackets are correspondingly inserted into the connecting grooves and locked and fixed by threaded fasteners.

2. The structurally stable fan according to claim 1, characterized in that: There are at least two groups of connecting brackets, and the two groups of connecting brackets are distributed front and back in the axial direction of the motor. There are at least two groups of connecting grooves, and their depths are respectively adapted to the positions of the connecting brackets. The connecting brackets are fixed on the bottom surface of the connecting grooves.

3. The structurally stable fan according to claim 2, characterized in that: The bottom surfaces of the two groups of connecting grooves are respectively close to the two ends of the installation groove.

4. The structurally stable fan according to claim 3, characterized in that: The connecting bracket is L-shaped and includes a first connecting portion and a second connecting portion perpendicular to each other. The first connecting portion is connected and fixed to the motor, and the second connecting portion is connected and fixed in the connecting groove. The two groups of connecting brackets distributed front and back are inverted with each other.

5. The structurally stable fan according to claim 4, characterized in that: A first connecting hole is provided on the second connecting portion, and a second connecting hole is provided on the bottom surface of the connecting groove. Bolts are installed in the corresponding first connecting hole and second connecting hole to connect and fix the connecting bracket in the installation groove.

6. The structurally stable fan according to any one of claims 1 to 5, characterized in that: The casing includes a relatively connected air duct volute and a main outer shell, the impeller is located in the air duct volute, the air inlet end of the air duct volute is installed with an air inlet cover, and the air outlet end of the air duct volute is installed with an air outlet assembly; the mounting groove is arranged on the main outer shell, and the outer end cover of the mounting groove is provided with a heat dissipation cover.

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