Novel air inlet box assembly

Abstract

A novel air inlet box assembly comprises an air blower, an air inlet shell, an air door and the like, the air blower is fixedly installed between an upper volute of the air blower and a lower volute of the air blower, and the upper volute and the lower volute are connected through screws to form the air blower assembly; the air blower assembly and the air inlet shell are fixed through screws, the internal circulation air door is fixed to the internal circulation air door fixing plate through a shaft hole structure, the internal circulation air door fixing plate is fixed to the air inlet shell through screws, the internal circulation air door swing arm is connected with the internal circulation air door through a bolt, and one end of the internal and external circulation connecting rod is connected with the internal circulation air door swing arm. The other end of the outer circulation air door concave-convex rod is connected with the outer circulation air door concave-convex rod, and the outer circulation air door concave-convex rod is installed on the air inlet shell through a shaft hole. The air bellow structure solves the problems of a traditional air bellow structure and is very convenient to install and maintain.

Description

Technical Field

[0001] The utility model relates to the field of automobile air conditioners, in particular to an automobile air conditioner air inlet box assembly. Background Art

[0002] When trucks are equipped with external air intakes, two holes are reserved in the front panel of the vehicle for the air intakes: one for fresh air to flow from the air intake to the outlet, and the other for internal circulation. These two holes are sealed to the air intakes in the front panel. This structure is bulky and inconvenient to install and maintain. Summary of the Invention

[0003] The purpose of the utility model is to provide a novel air inlet box assembly, which solves the problems of the traditional air box structure and is very convenient to install and maintain.

[0004] To achieve the above-mentioned purpose, the technical solution of the present utility model is:

[0005] A new air inlet box assembly includes a blower, an air inlet housing, an air damper, etc., and is characterized in that: the blower is fixedly installed between the upper volute of the fan and the lower volute of the fan, and the upper and lower volutes are connected by screws to form a blower assembly; the blower assembly is fixed to the air inlet housing by screws, the inner circulation damper is fixed to the inner circulation damper fixing plate through an axial hole structure, the inner circulation damper fixing plate is fixed to the air inlet housing by screws, the inner circulation damper swing arm is connected to the inner circulation damper through a pin, one end of the inner and outer circulation connecting rod is connected to the inner circulation damper swing arm, and the other end is connected to the outer circulation damper concave and convex rod, and the outer circulation damper concave and convex rod is installed on the air inlet housing through the axial hole.

[0006] The lower filter element cover and the upper filter element cover are fixed by buckles, and the filter element is assembled between the lower filter element cover and the upper filter element cover to form a filter element assembly; the filter element assembly is connected to the lower housing of the fan by screws, and the filter element cover is connected to the air inlet cover by buckles, and serves to limit the filter element.

[0007] The beneficial effects of the utility model are:

[0008] The utility model arranges the blower between the upper volute and the lower volute, and then fixes the upper volute and the lower volute to the air inlet housing with screws to form a blower assembly, which saves volume, is convenient for blower maintenance, and has little impact on cab noise. The filter element is arranged between the upper filter element cover and the lower filter element cover, and then fixes the upper filter element cover and the lower filter element cover to the lower volute with screws. Finally, the internal and external circulation dampers switch the internal and external circulation modes through the space transmission mechanism. The advantages include that both fresh air and internal circulation air pass through the filter element, the filter element is relatively easy to disassemble, and the air inlet box and the front panel sheet metal are well sealed. Only one large hole is opened in the sheet metal front panel, and this hole can be used as a fresh air inlet or an internal circulation air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic structural diagram of the utility model. DETAILED DESCRIPTION

[0010] The present invention will be further described below with reference to the accompanying drawings.

[0011] See also Figure 1 The blower 3 is mounted between the upper fan volute 4 and the lower fan volute 5. The upper and lower fan volutes 4 and 5 are screwed together to form a blower assembly. The blower assembly is screwed to the air inlet housing 2 6. The internal circulation damper 7 is fixed to the internal circulation damper fixing plate 8, which has holes at both ends. The internal circulation damper 8 fixing plate is screwed to the air inlet housing 2 6 by rotating the shaft. The internal circulation damper swing arm 9 is connected to the internal circulation damper 7 via a latch. The internal circulation connecting rod 10 is connected to the internal circulation damper swing arm 9 at one end and to the external circulation damper concave and convex rod 11 at the other end. The external circulation damper concave and convex rod 11 is mounted on the air inlet housing through the shaft hole.

[0012] The lower filter element cover 12 and the upper filter element cover 13 are connected by snaps, and the filter element 14 is assembled between the lower filter element cover 12 and the upper filter element cover 13. The filter element with the upper and lower filter element cover assembly is connected to the lower housing 5 of the fan by screws. The filter element cover 1 is connected to the air inlet cover 2 by snaps, and serves to limit the filter element 14. The air inlet housing 1 2 is connected to the air inlet housing 2 6 by screws and snaps.

[0013] The blower is positioned between the upper and lower volutes, which are then screwed to the air inlet housing. The filter element is positioned between the upper and lower filter covers, which are then screwed to the lower volute. Finally, the internal and external circulation dampers switch between internal and external circulation modes via a spatial transmission mechanism.

Claims

1. A novel air inlet box assembly, comprising a blower, an air inlet housing, and a damper, characterized in that: The blower is fixedly installed between the upper volute of the fan and the lower volute of the fan, and the upper and lower volutes are connected by screws to form a blower assembly; the blower assembly is fixed to the air inlet housing by screws, the inner circulation damper is fixed to the inner circulation damper fixing plate by an axial hole structure, the inner circulation damper fixing plate is fixed to the air inlet housing by screws, the inner circulation damper swing arm is connected to the inner circulation damper by a pin, one end of the inner and outer circulation connecting rod is connected to the inner circulation damper swing arm, and the other end is connected to the outer circulation damper concave and convex rod, and the outer circulation damper concave and convex rod is installed on the air inlet housing through the axial hole.

2. A novel air inlet box assembly according to claim 1, characterized in that: The lower filter cover and the upper filter cover are fixed by buckles, and the filter element is assembled between the lower filter cover and the upper filter cover to form a filter element assembly; the filter element assembly is connected to the lower housing of the fan by screws, and the filter element cover is connected to the air inlet cover by buckles, and plays a limiting role on the filter element.

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