Air purifier with heating function

Abstract

The utility model discloses an air purifier with a heating function, which comprises a casing, a volute fan is mounted in the casing, a first air inlet grid is mounted on the side wall of the casing corresponding to an air inlet of the volute fan, and a filter screen is mounted on the inner side of the first air inlet grid in the casing. A connecting seat communicated with an air outlet of the volute fan is mounted at the air outlet of the volute fan, a PTC heater is mounted on the connecting seat through a mounting seat, an air outlet gap is formed between the PTC heater and the inner wall of the connecting seat, and an air outlet grid is mounted on the portion, located on the upper side of the PTC heater, of the machine shell. A user does not need to purchase an air purifier and heating equipment at the same time, the indoor space and the equipment purchase cost are remarkably saved, the PTC heater is arranged at the air outlet, air is exhausted immediately after passing through the PTC heater, the path of air from heating to exhausting is effectively shortened, heat loss in the transmission process is greatly reduced, and rapid temperature rising is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of household electrical appliances, especially a kind of air purifier with heating. BACKGROUND

[0002] At present, air purifier has been widely applied in indoor environment such as family, office place, which mainly removes PM2.5, formaldehyde, bacteria and other pollutants in air through filter screen interception and other technologies, and plays an important role in improving indoor air quality.

[0003] The existing air purifier is relatively single, and can usually only be used for purifying air. When indoor heating is needed, the user needs to additionally configure a dedicated heating device. SUMMARY

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an air purifier with heating.

[0005] The utility model solves the technical scheme that the utility model discloses adopts:

[0006] An air purifier with heating, comprising a shell, a volute fan is installed in the shell, a first air inlet grid is installed on the side wall of the shell corresponding to the air inlet of the volute fan, a filter screen is installed in the shell on the inner side of the first air inlet grid, a connecting seat is installed on the air outlet of the volute fan, the connecting seat is in communication with the air outlet of the volute fan, a PTC heater is installed on the connecting seat through a mounting seat, the PTC heater and the inner wall of the connecting seat form an air outlet gap, and an air outlet grid is installed on the upper side of the PTC heater in the shell.

[0007] A plurality of first internal threaded columns are arranged on the connecting seat, a first through hole is arranged on the air outlet of the volute fan corresponding to the first internal threaded column, and the first internal threaded column and the first through hole are connected through screws.

[0008] An insertion groove is arranged on the outer side of the air outlet of the volute fan, a sliding part is arranged on the connecting seat corresponding to the insertion groove, and the sliding part is inserted into the insertion groove.

[0009] A plurality of second through holes are arranged on the connecting seat, a second internal threaded column is arranged on the mounting seat corresponding to the second through hole, and the second through hole and the second internal threaded column are connected through screws.

[0010] A temperature controller for detecting the temperature of the PTC heater is installed on the mounting seat.

[0011] The shell is composed of a base, a front shell and a rear shell, the shell of the volute fan is opened on one side close to the rear shell, and the opening of the shell of the volute fan is blocked after the volute fan is installed.

[0012] The front shell is provided with a cavity on the side away from the volute fan, and the filter screen is embedded in the cavity.

[0013] The bottom of the cavity is provided with a communication grid, and the sidewall of the cavity is provided with a second air inlet grid.

[0014] The beneficial effects of the utility model are: the utility model installs the volute fan in the shell, the sidewall of the shell is provided with the first air inlet grid corresponding to the air inlet of the volute fan, the filter screen is installed in the inside of the first air inlet grid in the shell, the air outlet of the volute fan is provided with the connecting seat communicated with the air outlet of the volute fan, the PTC heater is installed on the connecting seat through the mounting seat, the PTC heater and the inner wall of the connecting seat form the air outlet gap, the air outlet grid is installed on the upside of the PTC heater in the shell, the heating function and air purification function are organically fused, the user need not purchase the air purifier and heating equipment simultaneously, the indoor space and equipment purchase cost are saved obviously, the PTC heater is arranged at the air outlet, the air is immediately discharged after passing through the PTC heater, the path from heating to discharging is effectively shortened, the heat loss in the transmission process is greatly reduced, and rapid heating is realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model is further explained below in combination with the drawings and embodiments.

[0016] Fig. 1 It is the structural diagram of the utility model;

[0017] Fig. 2 It is the exploded view of the utility model;

[0018] Fig. 3 It is the exploded view of the volute fan part structure. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantage of the utility model more clear and explicit, the utility model is further explained in detail below in combination with specific embodiments and referring to the drawings.It should be explained that the embodiments of the utility model and the features in the embodiments can be combined mutually without conflict.

[0020] It is understood that the description is only exemplary, and the scope of the utility model is not limited.

[0021] Some embodiments of the utility model are described below in combination with the drawings to provide a kind of.

[0022] Reference Figs. 1-3 The application relates to an air purifier with heating function, which comprises a casing 1, a volute fan 2 installed in the casing 1, a first air inlet grid 3 installed on the side wall of the casing 1 and corresponding to the air inlet of the volute fan 2, a filter screen 4 installed on the inner side of the first air inlet grid 3, a connecting seat 5 communicated with the air outlet of the volute fan 2, a PTC heater 7 installed on the connecting seat 5 through a mounting seat 6, and an air outlet grid 8 installed on the upper side of the PTC heater 7. The air purifier with heating function combines the air purifying function and the heating function, and the user does not need to purchase an air purifier and a heating device simultaneously, thereby saving indoor space and equipment purchase cost. The PTC heater 7 is arranged at the air outlet, air is immediately discharged after passing through the PTC heater 7, the path from heating to discharging is effectively shortened, heat loss in the transmission process is greatly reduced, and rapid heating is realized.

[0023] A plurality of first internal threaded columns 9 are arranged on the connecting seat 5, a first through hole 10 corresponding to the first internal threaded columns 9 is arranged at the air outlet of the volute fan 2, the first internal threaded columns 9 are connected with the first through hole 10 through screws, an insertion groove 11 is arranged on the outer side of the air outlet of the volute fan 2, a sliding part 12 corresponding to the insertion groove 11 is arranged on the connecting seat 5, the sliding part 12 is inserted into the insertion groove 11, and when the connecting seat 5 is installed, the sliding part 12 is first inserted into the insertion groove 11, then the connecting seat 5 is sleeved on the outer side of the air outlet of the volute fan 2, and finally the first internal threaded columns 9 and the first through hole 10 are fixed through screws.

[0024] A plurality of second through holes 13 are arranged on the connecting seat 5, second internal threaded columns 14 corresponding to the second through holes 13 are arranged on the mounting seat 6, and the second through holes 13 are connected with the second internal threaded columns 14 through screws.

[0025] A temperature controller 15 for detecting the temperature of the PTC heater 7 is installed on the mounting seat 6. In the embodiment, the temperature controller 15 is a mechanical temperature controller, which is disconnected when the temperature reaches a certain value, so that the PTC heater 7 stops working and the temperature of hot air is prevented from being too high.

[0026] In addition, the temperature controller 15 can be an adjustable electronic temperature controller, and the temperature threshold value can be adjusted through the electric control board of the product, so that the product is more flexible to use.

[0027] The shell 1 is composed of a base 16, a front shell 17 and a rear shell 18, the shell of the volute fan 2 is opened on one side close to the rear shell 18, after the volute fan 2 is installed, the shell of the volute fan 2 is combined with the rear shell 18, and the opening of the shell of the volute fan 2 is blocked.

[0028] In the embodiment, the shell of the volute fan 2 is a sheet metal part, only composed of a front plate 22 and a surrounding plate 23, and the plate material can be formed by simple bending; the back plate of the shell of the volute fan 2 is actually composed of the rear shell 18, the shell of the volute fan 2 is further simplified, the production process is simplified, and the production efficiency is improved; therefore, a plastic connecting seat 5 is added, relatively responsible structures such as a first internal thread column 9 and a second internal thread column 14 can be manufactured by an injection molding process, the shell of the volute fan 2 as a whole includes the front plate, the surrounding plate, the rear shell 18 and the connecting seat 5, the shell of the volute fan 2 as a whole is divided into multiple parts for production, complex structures are formed by plastic injection molding, and simple structures are formed by sheet metal bending, so that the product complex function demand is met, good mechanical properties are achieved, and the structural strength and stability are ensured.

[0029] The side wall of the cavity 19 is provided with a second air inlet grid 21, the air inlet amount is further improved, the purification period is shortened, the larger air inlet amount promotes air to pass through the filter screen 4 more frequently, the filter material is fully contacted, waste caused by local overloading of the filter screen 4 is avoided, and the overall service life of the filter screen 4 is prolonged, but the filter screen 4 needs to meet the filtering demand and be replaced according to actual demand.

[0030] The front shell 17 is provided with a cavity 19 away from one side of the volute fan 2, the filter screen 4 is embedded in the cavity 19, the bottom of the cavity 19 is provided with a communication grid 20, external air enters the cavity 19 through the first air inlet grid 3, passes through the filter screen 4 for filtering, enters the volute fan 2 through the communication grid 20, and is finally discharged through the air outlet grid 8.

[0031] In the utility model, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The term "and / or" used in the text includes any and all combinations of one or more related listed items. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; "connection" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0032] It is to be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Also, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, the scope of which is defined by the following claims and their equivalents.

Claims

1. An air purifier with heating, comprising a housing (1), characterized in that... A volute fan (2) is installed inside the housing (1). A first air intake grille (3) is installed on the side wall of the housing (1) corresponding to the air inlet of the volute fan (2). A filter screen (4) is installed inside the housing (1) on the inner side of the first air intake grille (3). A connecting seat (5) communicating with the air outlet of the volute fan (2) is installed at the air outlet of the volute fan (2). A PTC heater (7) is installed on the connecting seat (5) through a mounting seat (6). The PTC heater (7) and the inner wall of the connecting seat (5) form an air outlet gap. An air outlet grille (8) is installed on the housing (1) above the PTC heater (7).

2. The air purifier with heating according to claim 1, characterized in that... The connecting seat (5) is provided with a plurality of first internal threaded posts (9) arranged in a row. The air outlet of the volute fan (2) is provided with a first through hole (10) corresponding to the first internal threaded post (9). The first internal threaded post (9) and the first through hole (10) are connected by screws.

3. The air purifier with heating according to claim 1 or 2, characterized in that... The volute fan (2) has an insertion slot (11) on the outside of its air outlet. The connecting seat (5) has a sliding part (12) corresponding to the insertion slot (11), and the sliding part (12) is inserted into the insertion slot (11).

4. The air purifier with heating according to claim 1, characterized in that... The connecting seat (5) is provided with a plurality of second through holes (13), and the mounting seat (6) is provided with a second internal thread post (14) corresponding to the second through hole (13). The second through hole (13) and the second internal thread post (14) are connected by screws.

5. The air purifier with heating according to claim 1, characterized in that... A temperature controller (15) for detecting the temperature of the PTC heater (7) is installed on the mounting base (6).

6. The air purifier with heating according to claim 1, characterized in that... The housing (1) is composed of a base (16), a front shell (17) and a rear shell (18). The housing of the volute fan (2) has an opening on the side near the rear shell (18). After the volute fan (2) is installed, the housing of the volute fan (2) abuts against the rear shell (18), sealing the opening of the housing of the volute fan (2).

7. The air purifier with heating according to claim 6, characterized in that... The front shell (17) has a cavity (19) on the side away from the volute fan (2), and the filter screen (4) is embedded in the cavity (19).

8. The air purifier with heating according to claim 7, characterized in that... The bottom of the cavity (19) is provided with a connecting grid (20).

9. The air purifier with heating according to claim 7, characterized in that... The cavity (19) is provided with a second air intake grille (21) on its side wall.

Images