CN222797789U - Front fan cover capable of reducing fan outlet temperature and fan thereof - Google Patents

Abstract

The utility model relates to the technical field of household appliances, and provides a front fan cover capable of reducing the air outlet temperature of a fan and a fan thereof, wherein the front fan cover is provided with a compression channel which is communicated from front to back, the rear end opening of the compression channel is round, the front end opening is round-corner rectangle, the middle of the front end opening is also provided with a baffle plate, the compression channel is used for throttling and expanding air entering from the rear end of the front fan housing to reduce the air outlet temperature of the fan, and the rear end of the front fan housing is provided with a plurality of mounting parts for mounting the front fan housing. The air flow high-efficiency throttling and expansion are realized by arranging the compression channels with the front openings being round-corner rectangles in the front fan cover, so that the cooling performance of the fan is improved, the cooling effect is improved and the number of the compression channels is prevented from increasing by arranging the partition plates in the middle of the front openings of the compression channels, and the user can more conveniently maintain the cleanness and the sanitation of the fan by arranging the compression channels in the front fan cover.

Description

Front fan cover capable of reducing air outlet temperature of fan and fan thereof

Technical Field

The utility model relates to the technical field of household appliances, in particular to a front fan cover capable of reducing the air outlet temperature of a fan and the fan thereof.

Background

The fan is used as a common household appliance, is widely applied to families, offices, public places and the like, and provides a comfortable environment for people by the characteristics of simplicity, economy and energy conservation. The working principle of the fan is that the fan blades are driven by the motor to rotate, so that air flow is generated, the flow of air is accelerated, heat is taken away, and the purposes of reducing the environment temperature and improving the comfort level of a human body are achieved. However, with the increase of the requirements of people on life quality, the cooling effect of the traditional fan cannot meet the needs of some users, and especially in a high-temperature environment, the cooling effect of the traditional fan is not ideal.

Although some technologies for reducing the temperature of the air discharged from a fan by utilizing the air throttling expansion principle exist in the market, some defects still exist in the practical application of the technologies. For example, in the patent with the publication number of CN214887941U, entitled "a front hood plate capable of reducing the blowing temperature of a fan and a fan thereof", a plurality of reducers capable of making air throttle expand are densely distributed on the front plate surface of the front hood plate, the air inlet end of each reducer penetrates from the front plate surface to the rear plate surface of the front hood plate, when air flows to the air outlet end, the flow area is reduced, the flow speed is accelerated, and the blown air temperature is reduced. Although the patent can reduce the air outlet temperature of the fan to a certain extent, the patent has the defects that firstly, the opening of the circular air outlet end of the reducing pipe is larger, the temperature reduction range of air passing through the throttling part is limited, and the requirement of a user on lower-temperature air flow cannot be effectively met. Secondly, the number of the reducers is large, so that the difficulty in production and manufacture is increased, and the cost is correspondingly increased. Finally, because the reducer is uniformly distributed on the outer surface of the front air cover plate, the sanitary dead angle is more, dust and dirt are easy to accumulate, and cleaning and maintenance work become relatively difficult.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model aims to provide a front fan cover capable of reducing the air outlet temperature of a fan and the fan thereof.

The utility model provides a can reduce preceding fan housing of fan air-out temperature is equipped with the compression passageway that link up from front to back, compression passageway rear end opening is circular, compression passageway front end opening is the fillet rectangle, compression passageway is used for will follow the air that preceding fan housing rear end got into throttles the inflation, makes fan air-out temperature reduce, preceding fan housing rear end is equipped with the installation department and is used for the installation of preceding fan housing.

Further, a partition plate is arranged in the middle of the opening at the front end of the compression channel.

Further, the compression channels are distributed in a plurality of circles and are in an annular array.

Further, the installation department includes preceding installation piece and buckle, preceding fan housing left and right sides rear end and bottom rear end are equipped with preceding installation piece, preceding fan housing top rear end is equipped with the buckle.

Further, a notch is arranged in the middle of the rear end of the buckle.

A fan adopting a front fan cover capable of reducing the air outlet temperature of the fan comprises a base, wherein a vertical supporting sleeve is fixedly connected to the center of the top of the base, a driving piece is arranged at the top of the supporting sleeve, a rear fan cover is fixedly connected to the front end of the driving piece, the rear fan cover is fixedly connected with the front fan cover, a fan blade is fixedly connected to an output shaft of the driving piece, and the fan blade is positioned between the rear fan cover and the front fan cover.

Further, adjust knob has been cup jointed to support sleeve top periphery, support sleeve top is equipped with the master control panel, the master control panel lower extreme is equipped with the bracing piece, the bracing piece stretches into support sleeve is inside, adjust knob is used for fixing the master control panel, the master control panel top articulates there is the regulating block, the regulating block top rotates and is connected with the driving piece.

Further, the rear fan housing is provided with a rear mounting block, and the rear mounting block is fixedly connected with the mounting portion.

Further, the adjusting block is provided with a damping at the joint of the main control panel, and the direction of the driving piece is adjusted by the rotation of the adjusting block so as to adjust the air outlet direction of the fan.

Further, the rear mounting blocks are arranged at the left side, the right side and the bottom of the rear fan housing.

Wherein the throttle expansion (Throttling Expansion) refers to the adiabatic expansion of a fluid (gas or liquid) at a higher pressure through a porous plug (or throttle valve) in a direction of lower pressure. Adiabatic expansion refers to the expansion of a gas without heat exchange with the outside, but without work done by the gas against the outside. According to a first law of thermodynamics, this can be demonstrated as an isenthalpic process in which the volume of gas increases, the pressure decreases, and thus the temperature decreases. Adiabatic expansion is often used to reduce the temperature of the gas, acting as a freezing effect.

Compared with the prior art, the utility model has the beneficial effects that:

1. through set up the front end opening in the inside compression passageway that is the fillet rectangle of preceding fan housing, realized the high-efficient throttle and the inflation of air flow, this kind of design has not only improved the efficiency of air flow, still makes the air obtain reducing through throttle expansion effect temperature when passing through compression passageway to promoted the cooling performance of fan, provided more comfortable use experience for the user.

2. Through setting up the baffle in the middle of compression passageway front end opening, it has restricted the opening size of compression passageway when guaranteeing the circulation of air, has avoided influencing the cooling effect because of the opening is too big, and in addition, this kind of design still helps controlling manufacturing cost, because it has avoided the extra manufacturing cost that brings because of increasing compression passageway quantity, has realized the balance of cost and effect.

3. Through set up compression passageway in the front fan housing is inside, not only optimized the air flow path, still reduced the outside health dead angle of fan, this kind of design makes clean work become easier, and the user can more conveniently maintain the sanitation and hygiene of fan, has also improved the aesthetic degree and the whole use experience of fan simultaneously.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only one embodiment of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a front fan housing and a fan structure thereof for reducing the temperature of the air exiting from the fan.

Fig. 2 is an exploded view of a front fan housing and a fan structure thereof capable of reducing the temperature of the air outlet of the fan.

Fig. 3 is a partial enlarged view at a in fig. 2.

Fig. 4 is a rear side view of the front fan housing.

Fig. 5 is a rear side view of the front fan housing.

Fig. 6 is a left side view of the front fan housing.

Fig. 7 is a sectional view taken along line B-B in fig. 4.

Fig. 8 is a partial enlarged view at C in fig. 5.

Fig. 9 is a partial enlarged view at D in fig. 5.

The mark in the drawing is 1, the base; 2, a supporting sleeve, 3, an adjusting knob, 4, a main control panel, 5, an adjusting block, 6, a driving piece, 7, a rear fan cover, 71, a rear mounting block, 8, fan blades, 9, a front fan cover, 91, a front mounting block, 92, a buckle, 93, a compression channel, 94 and a partition plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the technical solutions in the embodiments of the present utility model are clearly and completely described below to further illustrate the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all versions.

In embodiment 1, as shown in fig. 4 to 9, a front fan cover 9 capable of reducing the air outlet temperature of a fan is provided with compression channels 93 penetrating from front to back, the compression channels 93 are distributed in a plurality of circles and are in an annular array, the rear end opening of each compression channel 93 is circular, the front end opening of each compression channel 93 is in a rounded rectangle, and the compression channels 93 are used for throttling and expanding air entering from the rear end of the front fan cover 9 so as to reduce the air outlet temperature of the fan. The front fan housing 9 rear end is equipped with a plurality of installation department and is used for the installation of front fan housing 9, the installation department includes preceding installation piece 91 and buckle 92, front fan housing 9 left and right sides rear end and bottom rear end are equipped with preceding installation piece 91, front fan housing 9 top rear end is equipped with buckle 92, be equipped with the notch in the middle of the buckle 92 rear end.

The front fan housing 9 adopts the integrated into one piece technology, and the material that adopts is plastics, in order to reduce the design manufacturing degree of difficulty of mould, reduces the manufacturing cost of front fan housing 9, compression passageway 93 quantity is unfavorable too much, but in order to guarantee the cooling effect, compression passageway 93 front end opening is also unfavorable too big, and this embodiment is in be equipped with baffle 94 in the middle of compression passageway 93 front end opening to this guarantees every compression passageway 93 front end opening is two fillet rectangle air outlets, and two air outlets share one compression passageway 93, both guaranteed that the front end opening can not be too big also avoided compression passageway 93 quantity increases.

Example 2: as shown in fig. 1-3, a fan adopting a front fan cover 9 capable of reducing the air outlet temperature of the fan comprises a base 1, wherein a vertical support sleeve 2 is fixedly connected to the center of the top of the base 1, an adjusting knob 3 is sleeved on the periphery of the top of the support sleeve 2, a main control panel 4 is arranged above the support sleeve 2, a supporting rod is arranged at the lower end of the main control panel 4 and extends into the support sleeve 2, the adjusting knob 3 is used for fixing the main control panel 4, the installation height of the main control panel 4 can be adjusted by loosening the adjusting knob 3, a user can select the required installation height according to actual demands, an adjusting block 5 is rotationally connected to the top end of the main control panel 4, a driving piece 6 is rotationally connected to the top of the adjusting block 5, the adjusting block 5 with the junction of main control panel 4 is equipped with the damping, through the rotation of adjusting block 5 adjusts the orientation of driving piece 6 to adjust the whole air-out direction of fan, when the user selects the mode of shaking the head, driving piece 6 can rotate on the adjusting block 5, reaches the effect of sweeping the wind, driving piece 6 front end fixedly connected with rear fan cover 7, rear fan cover 7 left and right sides and bottom are equipped with rear mounting block 71, rear mounting block 71 with preceding installation block 91 fixed connection, the notch of buckle 92 with the metal pole joint of rear fan cover 7, thereby realize rear fan cover 7 with preceding fan cover 9's fixed connection, driving piece 6 output shaft fixedly connected with flabellum 8, flabellum 8 is located between rear fan cover 7 and the preceding fan cover 9.

Having described the main technical features and fundamental principles of the present utility model and related advantages, it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The above detailed description is, therefore, to be taken in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments in terms of various embodiments, not every embodiment is described in terms of a single embodiment, but rather that the descriptions of embodiments are merely provided for clarity, and that the descriptions of embodiments in terms of various embodiments are provided for persons skilled in the art on the basis of the description.

Claims (10)

1. The utility model provides a can reduce preceding fan housing of fan air-out temperature, its characterized in that, preceding fan housing (9) are equipped with compression passageway (93) that link up from front to back, compression passageway (93) rear end opening is circular, compression passageway (93) front end opening is the fillet rectangle, compression passageway (93) are used for will follow the air that preceding fan housing (9) rear end got into throttles and expands, makes fan air-out temperature reduce, preceding fan housing (9) rear end is equipped with the installation department and is used for the installation of preceding fan housing (9).

2. A front fan housing for reducing the temperature of the air exiting from a fan according to claim 1, characterized in that a partition plate (94) is provided in the middle of the front opening of the compression passage (93).

3. A front fan housing for reducing the temperature of the air exiting from a fan according to claim 1, characterized in that said compression channels (93) are distributed in a plurality of circles and are arranged in an annular array.

4. The front fan cover capable of reducing the air outlet temperature of the fan according to claim 1, wherein the mounting portion comprises a front mounting block (91) and a buckle (92), the front mounting block (91) is arranged at the rear ends of the left side and the right side of the front fan cover (9) and at the rear end of the bottom, and the buckle (92) is arranged at the rear end of the top of the front fan cover (9).

5. The front fan cover capable of reducing the air outlet temperature of the fan according to claim 4, wherein a notch is arranged in the middle of the rear end of the buckle (92).

6. The utility model provides a fan, has adopted the preceding fan housing of any one of claims 1~5 reducible fan air-out temperature, its characterized in that includes base (1), base (1) top center fixedly connected with vertical support sleeve (2), support sleeve (2) top is equipped with driving piece (6), driving piece (6) front end fixedly connected with back fan housing (7), back fan housing (7) with preceding fan housing (9) fixedly connected with, driving piece (6) output shaft fixedly connected with flabellum (8), flabellum (8) are located back fan housing (7) with preceding fan housing (9) between.

7. The fan according to claim 6, wherein an adjusting knob (3) is sleeved on the periphery of the top of the supporting sleeve (2), a main control panel (4) is arranged above the supporting sleeve (2), a supporting rod is arranged at the lower end of the main control panel (4), the supporting rod stretches into the supporting sleeve (2), the adjusting knob (3) is used for fixing the main control panel (4), an adjusting block (5) is hinged to the top end of the main control panel (4), and a driving piece (6) is rotatably connected to the top of the adjusting block (5).

8. A fan according to claim 6, characterized in that the rear fan housing (7) is provided with a rear mounting block (71), the rear mounting block (71) being fixedly connected to the mounting portion.

9. A fan according to claim 7, characterized in that the connection of the adjusting block (5) with the main control panel (4) is provided with damping, the orientation of the driving element (6) being adjusted by rotation of the adjusting block (5).

10. A fan according to claim 8, wherein the rear mounting blocks (71) are provided on the left and right sides and bottom of the rear fan housing (7).