Fan mounting structure of EPP fresh air exchanger

Abstract

An EPP fresh air exchanger fan installation structure comprises a machine shell made of EPP foaming materials, air openings are formed in the two ends of the machine shell respectively, a heat exchange core body is arranged in the machine shell, a fan is arranged between the heat exchange core body and the air openings, a positioning groove is formed in the machine shell, a fixing part is arranged at the lower end of the fan, and the fixing part is installed in the positioning groove. A square rod with a screw hole is connected to the lower portion of the fixing portion and penetrates out of the machine shell, and a sheet metal part is arranged on the corresponding outer wall of the machine shell and fastened through a screw and the screw hole. According to the scheme, the fan fixing part (mounting surface) is in direct contact with the machine shell made of the EPP foaming material, and the vibration and noise of the fan can be effectively reduced due to the fact that EPP has the damping and noise reduction effects; and mounting brackets are omitted, so that the mounting height can be effectively reduced, the height of the whole machine is reduced, and the size of the whole machine is reduced.

Description

Technical Field

[0001] The utility model relates to an EPP fresh air exchanger fan installation structure, belonging to the field of ventilation equipment. Background Art

[0002] Fresh air exchanger is a ventilation device that replaces indoor and outdoor air. During the replacement process, the energy in the indoor air is recovered through the heat exchange core, and the outdoor fresh air is replaced indoors to reduce the replacement energy consumption, so as to achieve the purpose of energy saving and environmental protection. With the continuous improvement of people's requirements for the performance of fresh air fans and the trend of pursuing lighter and thinner development, new fresh air fans with casings made of EPP foam materials have been popular. However, in actual production, the installation structure of the fan in the casing restricts the development of lightness and thinness. In the traditional fan installation structure, in order to reduce the noise generated by the vibration of the fan when it is working, a mounting bracket is set under the fan. The height of the bracket is generally between 30-50mm, which increases the height of the whole machine. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide an EPP fresh air exchanger fan installation structure which adopts long rod positioning and sheet metal fastening to reduce the installation height and achieve sound insulation and vibration reduction.

[0004] The technical solution of the fan installation structure of the EPP fresh air exchanger of the utility model is: it includes a casing made of EPP foam material, air outlets are respectively arranged at both ends of the casing, a heat exchange core is arranged in the casing, a fan is arranged between the heat exchange core and the air outlet, a positioning groove is arranged in the casing, a fixing part is arranged at the lower end of the fan, the fixing part is installed in the positioning groove, a square rod with screw holes is connected below the fixing part, the square rod with screw holes passes through the casing, sheet metal parts are arranged on the corresponding outer walls of the casing, and are fastened by screws and screw holes.

[0005] The main feature of the fan installation structure of the EPP fresh air exchanger of the utility model is that the fixing part of the lower end of the fan is installed in the positioning groove, so that the fixing part (installation surface) of the fan is in direct contact with the casing made of EPP foam material. Since EPP itself has the function of shock absorption and noise reduction, it can effectively reduce the vibration and noise of the fan; at the same time, a square rod with screw holes is connected under the fixing part, the square rod passes through the casing, and a sheet metal part (metal plate) is set on the outer wall of the casing, and is fastened with screws and screw holes, so that the fan is firmly fixed and easy to install. In particular, the fixing part of the fan is directly installed with the casing, which reduces the installation bracket and can effectively reduce the installation height, thereby reducing the height of the whole machine and reducing the volume of the whole machine.

[0006] The utility model discloses an EPP fresh air exchanger fan installation structure, wherein a volute-shaped installation position is provided in the casing, and the fan is arranged in the volute-shaped installation position. With the volute-shaped installation position, the fan installation fits the casing more closely. An embedding groove is provided on the outer wall of the casing, and the sheet metal parts are installed in the embedding groove, so that the outer wall of the casing is flat. There are 3-5 square rods, and multiple square rods are connected more securely. An outer protective shell is provided outside the casing, and the outer protective shell can protect the casing and reduce the chance of casing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the fan installation structure of the EPP fresh air exchanger of the utility model;

[0008] Figure 2 yes Figure 1 A local enlarged view of point A;

[0009] Figure 3 It is a schematic diagram of the connection relationship between the fan, square rod, sheet metal parts and screws of the utility model;

[0010] Figure 4 It is a schematic diagram of the fan of the utility model being installed in the volute installation position. DETAILED DESCRIPTION

[0011] The utility model relates to an EPP fresh air exchanger fan installation structure, such as Figure 1 — Figure 4As shown, it includes a casing 1 made of EPP foam material, with air outlets 2 arranged at both ends of the casing, a heat exchange core 3 arranged in the casing, a fan 5 arranged between the heat exchange core 3 and the air outlet 2, a positioning groove 6 arranged in the casing 1, a fixing part 7 arranged at the lower end of the fan, the fixing part 7 is installed in the positioning groove 6, a square rod 9 with screw holes 8 is connected below the fixing part 7, the square rod 9 with screw holes 8 passes through the casing 1, and a sheet metal part 10 is arranged on the corresponding outer wall of the casing 1, and is fastened to the screw holes 9 by screws 11. The main feature of this scheme is to install the fixing part 7 at the lower end of the fan 5 into the positioning groove 6, so that the fixing part (installation surface) of the fan 5 is in direct contact with the housing 1 made of EPP foam material. Since EPP itself has the function of shock absorption and noise reduction, it can effectively reduce the vibration and noise of the fan; at the same time, a square rod 9 with a screw hole 8 is connected under the fixing part 7, and the square rod 9 passes through the housing 1. A sheet metal part (metal plate) 10 is arranged on the outer wall of the housing, and is fastened with the screw hole 9 by screws 11, so that the fan is firmly fixed and easy to install. In particular, the fixing part of the fan 5 is directly installed with the housing, which reduces the installation bracket, can effectively reduce the installation height, thereby reducing the height of the whole machine and reducing the volume of the whole machine. A volute-shaped installation position 12 is arranged in the housing 1, and the fan 5 is arranged in the volute-shaped installation position 12. With the volute-shaped installation position, the fan installation fits the housing more closely. An embedding groove 13 is arranged on the outer wall of the housing 1, and the sheet metal part 10 is installed in the embedding groove 13, so that the outer wall of the housing is flat. There are 3-5 square rods 9, and multiple square rods are more securely connected. An outer protective shell 15 is arranged outside the housing 1, and the outer protective shell can protect the housing and reduce the probability of damage to the housing.

Claims

1. An EPP fresh air exchanger fan installation structure comprises a casing (1) made of EPP foam material, air outlets (2) are arranged at both ends of the casing, a heat exchange core (3) is arranged in the casing, and a fan (5) is arranged between the heat exchange core (3) and the air outlet (2), characterized in that: A positioning groove (6) is provided in the casing (1), a fixing portion (7) is provided at the lower end of the fan, the fixing portion (7) is inserted into the positioning groove (6), a square rod (9) with a screw hole (8) is connected below the fixing portion (7), the square rod (9) with the screw hole (8) passes through the casing (1), and a sheet metal part (10) is provided on the corresponding outer wall of the casing (1) and is fastened to the screw hole (8) by a screw (11).

2. The EPP fresh air exchanger fan installation structure according to claim 1 is characterized in that A volute-shaped mounting position (12) is provided in the casing (1), and the fan (5) is provided in the volute-shaped mounting position (12).

3. The EPP fresh air exchanger fan installation structure according to claim 1 is characterized in that An embedding groove (13) is provided on the outer wall of the housing (1), and the sheet metal part (10) is installed in the embedding groove (13).

4. The EPP fresh air exchanger fan installation structure according to claim 1 is characterized in that There are 3 to 5 square rods (9).

5. The EPP fresh air exchanger fan installation structure according to claim 1 is characterized in that An outer protective shell (15) is arranged outside the casing (1).

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