CN213577703U

CN213577703U - Bathroom heater with two-way function

Info

Publication number: CN213577703U
Application number: CN202022234707.2U
Authority: CN
Inventors: 李玉林; 王柱; 曹东
Original assignee: Jiaxing Pova Electric Appliance Co ltd
Current assignee: Jiaxing Pova Electric Appliance Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-29
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a bathroom heater with two-way function, including the top lid, the collector is installed in the front of top lid, the back-mounted of top lid has fan shell, install two-way multi-wing centrifugal impeller and two-way motor in the fan shell, be equipped with the opening that communicates collector and fan shell respectively on the lid of top, be equipped with the outer tube connector on the fan shell, the back-mounted of top lid has the water conservancy diversion shell, be equipped with the water conservancy diversion air flue in the water conservancy diversion shell, the front of top lid is equipped with the air inlet, inside the water conservancy diversion air flue intercommunication fan shell, the collector, the opening, inside the fan shell, the water conservancy diversion air flue, the air inlet links into the inner loop air flue in proper order, the collector, the opening, inside. The utility model discloses eliminated shortcoming such as traditional fan-type bathroom heater's is bulky, with high costs, energy consumption height, can satisfy under the condition of single motor single impeller and blow and take a breath the needs, reduced installation space greatly, reduce the energy consumption, improved fan efficiency.

Description

Bathroom heater with two-way function

Technical Field

The utility model belongs to the technical field of the bathroom heater, concretely relates to bathroom heater with two-way function.

Background

With the rapid development of modern industry, fan products are more and more widely applied in various industries, and the multi-wing centrifugal fan is widely applied to the fields of ventilation, dust exhaust, cooling and the like as a machine for improving gas pressure and exhausting gas by means of input mechanical energy. In recent years, the fan is the first choice in designing kitchen range hoods and bathroom heaters by virtue of the advantages of small size, low noise, high wind pressure and the like. However, the existing bathroom heater needs to design different fans for exhaust and internal circulation heating and ventilation, and has the problems of large volume, more parts, complex installation, high use noise, low heating efficiency, high energy consumption and the like. Therefore, a light, comfortable, efficient and energy-saving bathroom heater needs to be researched and designed to meet the daily life requirements of people.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a technical scheme is: a bath heater with bidirectional function comprises a top end cover, a current collector is arranged on the front surface of the top end cover, a fan shell is arranged on the back surface of the top end cover, a bidirectional multi-wing centrifugal impeller and a bidirectional motor for controlling the bidirectional multi-wing centrifugal impeller to rotate are arranged in the fan shell, openings respectively communicated with the current collector and the fan shell are arranged on the top end cover, an outer pipe connector is arranged on the fan shell, a flow guide shell is arranged on the back surface of the top end cover, a flow guide air passage is arranged in the flow guide shell, an air inlet communicated with the flow guide air passage is arranged on the front surface of the top end cover, the flow collector, the openings, the interior of the fan shell, the flow guide air passage and the air inlet are sequentially connected into an inner circulation air passage, the current collector, the openings, the interior of the fan shell and the outer pipe connector are, when the bidirectional motor rotates reversely, the airflow flows into the air exchange passage from the current collector and flows out from the outer pipe connecting port.

Preferably as above-mentioned technical scheme, two-way multi-wing centrifugal impeller is including the leaf roof, the leaf medium plate, the leaf bottom plate, wheel hub and a plurality of blade, the leaf roof, leaf medium plate and leaf bottom plate are the annular and mutual parallel arrangement in proper order, all blade circumference arrays are arranged, the upper end of all blades is connected to the leaf roof, the lower extreme of all blades is connected to the leaf bottom plate, wheel hub installs on the leaf medium plate, all blades are connected to the leaf medium plate, the blade is including preceding blade and backward blade, preceding blade links to each other with the backward blade, preceding blade section is along clockwise slope, backward blade section is towards anticlockwise slope.

Preferably, the blade top plate comprises an inner ring surface, the outer side of the upper end of the forward blade is connected with the inner ring surface of the blade top plate, and the lower end surface of the forward blade is connected with the upper surface of the blade bottom plate.

Preferably, the backward vane is provided with an installation opening, and the outer sides of the inner plates of the vane are respectively embedded into the installation opening.

Preferably, the hub is of a hemispherical structure with hollow parts, the middle of the hub is provided with a sleeve, the periphery of the hub is connected with the upper surface of the blade middle plate, the spherical surface of the hub is provided with a plurality of hollow holes which are uniformly arranged at intervals, and the periphery of the sleeve is provided with a plurality of reinforcing ribs.

Preferably, the blade top plate, the blade middle plate, the blade bottom plate, the hub, the blades and the reinforcing ribs are integrally formed, and the fan shell and the guide shell are integrally formed.

Preferably, the front surface of the top end cover is provided with a fence for covering the air inlet.

Preferably, the fence is composed of an upper layer and a lower layer.

Preferably, a PTC ceramic heater is installed between the two layers of fences.

Preferably, a rectifying plate is installed in the guide shell.

The utility model has the advantages that: the utility model provides a bathroom heater with two-way function compares than traditional bathroom heater, has abandoned radiation formula bathroom heater's defects such as being heated inhomogeneous, the bulb meets water unstability such as easy explosion, has eliminated shortcomings such as traditional fan formula bathroom heater's bulky, with high costs, energy consumption height, can satisfy the needs of blowing and taking a breath under single motor single impeller's the condition, has reduced installation space greatly, reduces the energy consumption, improves fan efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic structural view of a bidirectional multi-wing centrifugal impeller;

fig. 4 is another angle structure diagram of the bidirectional multi-wing centrifugal impeller.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a bath heater with bidirectional function comprises a top end cap 20, a current collector 21 is installed on the front surface of the top end cap 20, a fan housing 22 is installed on the back surface of the top end cap 20, a bidirectional multi-wing centrifugal impeller 23 and a bidirectional motor 24 for controlling the rotation of the bidirectional multi-wing centrifugal impeller 23 are installed in the fan housing 22, an opening 28 respectively communicating the current collector 21 and the fan housing 22 is arranged on the top end cap 20, an outer pipe connector 25 is arranged on the fan housing 22, a flow guide shell 26 is installed on the back surface of the top end cap 20, a flow guide air passage is arranged in the flow guide shell 26, an air inlet 27 communicating the flow guide air passage is arranged on the front surface of the top end cap 20, the flow guide air passage communicates with the inside of the fan housing 22, the current collector 21, the opening 28, the inside of the fan housing 22, the flow guide air passage and the air inlet, when the bidirectional motor 24 rotates forwards, the air flow enters the internal circulation air channel from the air inlet 27 and flows out of the collector 21, and when the bidirectional motor 24 rotates backwards, the air flow flows into the air exchange channel from the collector 21 and flows out of the external pipe connecting port 25. The blower housing 22 is internally designed with logarithmic spirals, and the transition part adopts tangent fillet transition, so that the guiding and diffusion effects of the blower housing 22 are improved. Meanwhile, the top end cover 20 is matched, so that the full-pressure efficiency of the fan is improved to the maximum extent, and the requirement of rapid heating is met.

Further, the bidirectional multi-wing centrifugal impeller comprises a blade top plate 1, a blade middle plate 2, a blade bottom plate 3, a hub 4 and a plurality of blades 5, wherein the blade top plate 1, the blade middle plate 2 and the blade bottom plate 3 are all annular and are sequentially arranged in parallel, all the blades 5 are arranged in a circumferential array around the axial lead of the blade top plate 1, the blade top plate 1 is connected with the upper ends of all the blades 5, the blade bottom plate 3 is connected with the lower ends of all the blades 5, the hub 4 is installed on the blade middle plate 2, the blade middle plate 2 is connected with all the blades 5, and the blades 5 are bidirectional blades. The blade top plate 1, the blade middle plate 2 and the blade bottom plate 3 are all designed by circular rings, pneumatic loss is reduced, and stability and strength of the impeller during high-speed rotation are improved. In the present embodiment, the number of the blades 5 is 41. Bidirectional blade is including preceding blade 6 and backward blade 7, and preceding blade 6 links to each other with backward blade 7, and preceding blade 6 inclines along clockwise, and backward blade 7 inclines towards anticlockwise. When the impeller rotates clockwise, wind is generated mainly by the forward blades 6, and when the impeller rotates anticlockwise, wind is generated mainly by the backward blades 7.

Further, the blade top plate 1 comprises an inner ring surface 8, the outer side of the upper end of the forward blade 6 is connected with the inner ring surface 8 of the blade top plate 1, and the lower end surface of the forward blade 6 is connected with the upper surface of the blade bottom plate 3. The connecting angle between the forward blade 6 and the blade top plate 1 and the connecting angle between the forward blade 6 and the blade bottom plate 3 are designed to be round-angle smooth transition respectively, so that the manufacturability of impeller manufacturing can be improved. The upper surface of the blade top plate 1 is flush with the upper end surface of the forward blade 6, and the thickness of the blade top plate 1 is larger than that of the blade bottom plate 3. Compared with the blade bottom plate 3, the blade top plate 1 is designed to be a small circular ring with large thickness, and the blade bottom plate 3 is designed to be a large circular ring with small thickness. The blade top plate 1 is small in circular ring and large in thickness, so that the top stress can be improved, and the axial air inlet of the impeller is optimized. The stability of impeller when guaranteeing high-speed rotation, the circulation of impeller bottom air is guaranteed in the small thickness design, improves fan efficiency. The blade bottom plate 3 is large, the circular ring is small in thickness, the stability of the impeller is guaranteed when high-speed rotation is guaranteed, circulation of air at the bottom of the impeller is guaranteed, and fan efficiency is improved. The ratio of the length of the cross section of the forward blade 6 to the length of the cross section of the backward blade 7 is 6: 4. The blade profiles of the forward blade 6 and the backward blade 7 are both arc-shaped wing structures, so that the high-speed rotation aerodynamic noise of the impeller is reduced. And the connecting thickness is increased at the transition position between the forward direction and the backward direction, so that the completeness of the blade 5 is ensured under the pneumatic impact of forward and reverse rotation of the impeller. The quantity of blade 5 is 41, evenly distributed on the circumferencial direction, and blade 5 effective height is 68mm, improves the full pressure efficiency of impeller the maximize, improves the wind pressure when impeller anticlockwise rotation and the wind speed when clockwise rotating, realizes two-way pivoted demand.

Furthermore, the backward vane 7 is provided with a mounting opening 9, and the outer sides of the middle vane plates 2 are respectively embedded into the mounting opening 9. Embedding is 5mm in the blade 7 behind the outside of leaf medium plate 2, effectively improves 5 rigidity of blade, and the inboard of leaf medium plate 2 links to each other with wheel hub 4, and effective connection thickness is 3mm, guarantees that the impeller bears the stability under the high moment of torsion load.

Further, wheel hub 4 is the hemispherical structure of inside fretwork, and wheel hub 4's middle part is equipped with sleeve 10, and wheel hub 4 connects leaf medium plate 2 all around. The spherical surface of the hub 4 is provided with a plurality of hollow holes 11 which are uniformly arranged at intervals. In the present embodiment, the hollow hole 11 is an elliptical hole. The hollowed-out holes 11 can reduce the overall quality of the impeller. The hub 4 is the hemispherical structure of inside fretwork, under the condition of same materials, effectively improves impeller anti-wind pressure ability, prolongs the life of impeller. The sleeve 10 is used for being connected with the motor shaft, and a plurality of strengthening ribs 12 are arranged around the sleeve 10, so that the fatigue resistance of the joint is improved, and the service life of the impeller is prolonged.

Further, the blade top plate 1, the blade middle plate 2, the blade bottom plate 3, the hub 4, the blades 5 and the reinforcing ribs 12 are integrally formed. The blower housing 22 and the guide shell 26 are integrally formed.

Further, a PTC ceramic heater is installed in the inlet 27. The air flow is heated by controlling the PTC ceramic heater.

Further, the front surface of the top end cap 20 is provided with a fence 29 covering the air inlet 27. The fence 29 part is of a half structure, consists of an upper part and a lower part, and is tightly attached to the PTC ceramic heater. Meanwhile, the fence is made of PPS fire-resistant flame-retardant material, the gap between end grids is proper, pressure head loss is reduced to the maximum extent, meanwhile, hands are prevented from touching the high-temperature PTC ceramic plate, and safety of the bathroom heater is improved.

Further, a rectifying plate 30 is installed in the guide shell 26. The rectifying plate 30 is used for eliminating turbulence in the flow channel and adjusting air flow in the flow channel under the blowing working condition, so that air outlet at the blowing port is uniform, and fan noise is reduced.

When the bathroom heater needs to blow air, the bidirectional motor 24 drives the impeller to rotate at a high speed anticlockwise, the impeller axially enters air through the current collector 21, the air is discharged along the air inlet 27 by the PTC ceramic heater in the fence 29 under the guiding action of the fan shell 22, and warm air is blown out, so that the indoor heating effect is achieved; when the air exchange of the bath heater is needed, the bidirectional motor 24 rotates reversely to drive the impeller to rotate reversely, air is discharged along the outer pipe connecting port 25 through the guide effect of the axial air inlet of the current collector 21 and the fan shell 22, and the extracted indoor air is discharged out of a room through the outer pipe, so that the air exchange effect is achieved.

The top end cap 20 is integrally designed, and the current collector 21 and the top end cap 20 are combined into a whole, so that the structure is compact and the installation is convenient. Meanwhile, the collector 21 adopts a conical arc design with the best gas collection effect, so that the flow state of gas entering the impeller is optimized, the flow loss is reduced, and the pneumatic noise is reduced under the condition of meeting the requirement of high-efficiency gas collection.

It is worth mentioning that the technical features such as the bidirectional motor, the PTC ceramic heater and the like related to the patent application of the present invention should be regarded as the prior art, and the specific structure, the working principle, the control mode and the spatial arrangement mode of the technical features may be adopted by the conventional selection in the field, which should not be regarded as the invention point of the present invention, and the present invention does not further specifically expand the detailed description.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.

Claims

1. A bath heater with bidirectional function is characterized in that the bath heater comprises a top end cover, a current collector is arranged on the front side of the top end cover, a fan shell is arranged on the back side of the top end cover, a bidirectional multi-wing centrifugal impeller and a bidirectional motor for controlling the bidirectional multi-wing centrifugal impeller to rotate are arranged in the fan shell, openings respectively communicated with the current collector and the fan shell are arranged on the top end cover, an outer pipe connecting port is arranged on the fan shell, a flow guide shell is arranged on the back side of the top end cover, a flow guide air passage is arranged in the flow guide shell, an air inlet communicated with the flow guide air passage is arranged on the front side of the top end cover, the flow guide air passage is communicated with the inside of the fan shell, the current collector, the openings, the inside of the fan shell and the outer pipe connecting port are sequentially connected into an air change passage, and air flow enters the, when the bidirectional motor rotates reversely, the airflow flows into the air exchange passage from the current collector and flows out from the outer pipe connecting port.

2. The super bath with bidirectional function as claimed in claim 1, wherein the bidirectional multi-wing centrifugal impeller includes a top blade plate, a middle blade plate, a bottom blade plate, a hub and a plurality of blades, the top blade plate, the middle blade plate and the bottom blade plate are all arranged in an annular and parallel manner in sequence, all the blades are arranged in a circumferential array, the top blade plate is connected with the upper ends of all the blades, the bottom blade plate is connected with the lower ends of all the blades, the hub is mounted on the middle blade plate, the middle blade plate is connected with all the blades, the blades include a forward blade and a backward blade, the forward blade is connected with the backward blade, the forward blade section is inclined in a clockwise direction, and the backward blade section is inclined in an anticlockwise direction.

3. The super bath with bidirectional function of claim 2, wherein said blade top plate includes an inner annular surface, the outer side of the upper end of the forward blade is connected to the inner annular surface of the blade top plate, and the lower end surface of the forward blade is connected to the upper surface of the blade bottom plate.

4. The bi-directional bathroom heater of claim 3, wherein said backward blades are provided with mounting holes, and the outer sides of the inner plates of the blades are respectively inserted into the mounting holes.

5. The super bath with bidirectional function as defined in claim 4, wherein said hub is a hemispherical structure with a hollow inside, a sleeve is provided in the middle of the hub, the periphery of the hub is connected to the upper surface of the blade middle plate, a plurality of hollow holes are provided on the spherical surface of the hub at regular intervals, and a plurality of reinforcing ribs are provided on the periphery of the sleeve.

6. The bidirectional bathroom heater of claim 5, wherein said blade top plate, blade middle plate, blade bottom plate, hub, blade, and reinforcing rib are integrally formed, and said blower housing and guide shell are integrally formed.

7. The bi-directional bathroom heater of claim 1, wherein the front side of the top end cover is provided with a fence covering the air inlet.

8. The bi-directional bathroom warmer of claim 7, wherein said barrier is comprised of upper and lower layers.

9. The bi-directional bathroom heater of claim 8, wherein a PTC ceramic heater is installed between two layers of said barrier.

10. The super bath with bidirectional function of claim 9, wherein a rectifying plate is installed in said baffle shell.