Flow guide ring damping structure applied to fan

Abstract

The utility model discloses a flow guide ring damping structure applied to a fan. The impeller is fixedly arranged on an output shaft of the motor; the flow guide ring is fixedly arranged on the motor and is positioned between the impeller and the motor; the flow guide cover covers the peripheries of the flow guide ring and the impeller and is fixedly connected with a shell of the motor, and an air inlet is formed in the flow guide cover; the damping ring is attached to the inner ring of the flow guide cover, one end of the damping ring abuts against the flow guide cover, and the other end abuts against the outer end of the flow guide ring. According to the flow guide ring damping structure applied to the fan, the damping ring is arranged on the inner wall of the flow guide cover, after the flow guide cover and the motor shell are assembled, one end of the damping ring abuts against the protrusion arranged on the inner wall of the flow guide cover, and the other end of the damping ring abuts against the outer end of the flow guide ring, so that the flow guide ring is pressed and reinforced; and the problem of noise caused by vibration under high-speed airflow is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a guide ring shock-absorbing structure used in fans. Background Art

[0002] At present, fans are used in vacuum cleaners or floor scrubbers. Fans are usually composed of a motor, a guide ring, an impeller, and a guide cover. The impeller is fixed on the motor shaft and driven to rotate by the motor. The guide ring is fixed on the motor and located between the motor and the impeller. The guide cover is covered on the impeller and the guide ring. The motor drives the impeller to rotate to generate suction, sucking air from the air inlet of the guide cover and discharging it through the guide ring.

[0003] As the motor power increases, the impeller speed increases, the suction force it generates gradually increases, and the airflow velocity through the guide ring becomes more intense. In this case, the guide ring is prone to vibrate due to the passage of high-speed airflow, which in turn causes noise problems.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a guide ring shock-absorbing structure used in the fan to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the utility model aims to provide a guide ring shock absorbing structure used in a fan.

[0006] In order to achieve the above-mentioned purpose and other related purposes, the technical solution provided by the utility model is: a guide ring damping structure applied to a fan, comprising:

[0007] Motor;

[0008] An impeller, wherein the impeller is fixed on the output shaft of the motor;

[0009] A guide ring, the guide ring is fixed on the motor and located between the impeller and the motor;

[0010] A deflector cover, which is arranged on the outer periphery of the deflector ring and the impeller and is fixedly connected to the housing of the motor, and an air inlet is provided on the deflector cover;

[0011] A shock absorbing ring is attached to the inner circle of the air guide cover and one end of the shock absorbing ring abuts against the air guide cover, and the other end abuts against the outer end of the air guide ring.

[0012] The preferred technical solution is: a plurality of protrusions arranged at equal angles are provided on the inner wall of the deflector along the circumferential direction, the outer end of the shock absorbing ring abuts against the deflector ring, and the inner end of the shock absorbing ring abuts against the protrusions.

[0013] Due to the application of the above technical solution, the utility model has the following beneficial effects:

[0014] The utility model proposes a guide ring shock-absorbing structure for use in a fan. A shock-absorbing ring is arranged on the inner wall of the guide cover. After the guide cover is assembled with the motor housing, one end of the shock-absorbing ring abuts against a protrusion arranged on the inner wall of the guide cover, and the other end abuts against the outer end of the guide ring, so as to form a compression and reinforcement effect on the guide ring to avoid vibration under high-speed airflow and cause noise problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the fan involved in the utility model. DETAILED DESCRIPTION

[0016] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0017] See also Figure 1 . It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Example:

[0020] like Figure 1As shown, according to an overall technical concept of the utility model, a guide ring damping structure applied to a fan is provided, comprising:

[0021] Motor 1;

[0022] Impeller 2, impeller 2 is fixed on the output shaft of motor 1;

[0023] A guide ring 3, which is fixed on the motor 1 and located between the impeller 2 and the motor 1;

[0024] A guide cover 4, which is arranged on the outer periphery of the guide ring 3 and the impeller 2 and is fixedly connected to the housing of the motor 1, and an air inlet 41 is provided on the guide cover 4;

[0025] The shock absorbing ring 5 is attached to the inner circle of the air guide cover 4 and one end of the shock absorbing ring 5 abuts against the air guide cover 4 and the other end abuts against the outer end of the air guide ring 3 .

[0026] like Figure 1 As shown, in an exemplary embodiment of the utility model, a plurality of protrusions 42 arranged at equal angles are provided on the inner wall of the deflector 4 along the circumferential direction, the outer end of the shock-absorbing ring 5 abuts against the guide ring 3, and the inner end of the shock-absorbing ring 5 abuts against the protrusion 42. This structure is used to achieve compression and reinforcement of the guide ring 3 to prevent it from vibrating under the action of high-speed airflow.

[0027] Therefore, the utility model has the following advantages:

[0028] The utility model proposes a guide ring shock-absorbing structure for use in a fan. A shock-absorbing ring is arranged on the inner wall of the guide cover. After the guide cover is assembled with the motor housing, one end of the shock-absorbing ring abuts against a protrusion arranged on the inner wall of the guide cover, and the other end abuts against the outer end of the guide ring, so as to form a compression and reinforcement effect on the guide ring to avoid vibration under high-speed airflow and cause noise problems.

[0029] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. The guide ring damping structure used in the fan is characterized by: include: Motor; An impeller, wherein the impeller is fixed on the output shaft of the motor; A guide ring, the guide ring is fixed on the motor and located between the impeller and the motor; A deflector cover, which is arranged on the outer periphery of the deflector ring and the impeller and is fixedly connected to the housing of the motor, and an air inlet is provided on the deflector cover; A shock absorbing ring is attached to the inner circle of the air guide cover and one end of the shock absorbing ring abuts against the air guide cover, and the other end abuts against the outer end of the air guide ring.

2. The guide ring damping structure used in a fan according to claim 1, characterized in that: A plurality of protrusions arranged at equal angles are provided on the inner wall of the air guide cover along the circumferential direction, the outer end of the shock absorbing ring abuts against the air guide ring, and the inner end of the shock absorbing ring abuts against the protrusions.

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