CN-115534877-B - Front defrosting and demisting air duct of long-head heavy-duty truck instrument desk

CN115534877BCN 115534877 BCN115534877 BCN 115534877BCN-115534877-B

Abstract

The invention discloses a front defrosting and demisting air duct of a long-head heavy-duty truck instrument desk, which comprises a lower air duct, a partition plate, an instrument desk body, an air deflector and an upper cover plate, wherein an air inlet is formed in the bottom end of the lower air duct, one side of the top of the lower air duct is provided with a mounting hole, the surface of the mounting hole is connected with a boss column through screw threads, the boss column is arranged in the middle of the partition plate, the top end of the lower air duct is provided with a plurality of welding holes, the surfaces of the welding holes are welded with welding columns in a hot-melt manner, the welding columns are fixedly connected to the bottom end of the instrument desk body, the top end of the instrument desk body is clamped with the air deflector, and two sides of the top of the air deflector are provided with clamping holes.

Inventors

RUAN WEI
YANG GUANG
YAN KANGKANG
ZHANG CHI
PENG MAOLAN

Assignees

陕汽集团商用车有限公司

Dates

Publication Date: 20260508
Application Date: 20220930

Claims (4)

1. The utility model provides a defrosting defogging wind channel before long head heavily blocking instrument desk, includes lower wind channel (1), baffle (2), instrument desk body (3), aviation baffle (4) and upper cover plate (5), wherein, air intake (6) have been seted up to the bottom of lower wind channel (1), mounting hole (7) have been seted up to one side at lower wind channel (1) top, the surface connection of mounting hole (7) has boss post (9), just boss post (9) locate the middle part of baffle (2), a plurality of welding hole (13) have been seted up on the top of lower wind channel (1), a plurality of welding hole (13) the surface homothermal welding has welding post (14), and a plurality of welding post (14) fixed connection in the bottom of instrument desk body (3), aviation baffle (4) have been offered to the top block of instrument desk body (3), joint hole (15) have all been seted up to the both sides at aviation baffle (4) top, two joint boss (16) have all been blocked on the surface of joint hole (15), and two boss (16) are connected in fixed in upper cover plate (5); A ventilating channel (18) is arranged among the instrument desk body (3), the air deflector (4) and the upper cover plate (5), a defrosting and demisting air channel (19) is formed in the top end of the ventilating channel (18), a plurality of vertical ribs (20) are fixedly connected to the inner wall of the ventilating channel (18), and the ventilating channel (18) is in a long and narrow groove shape; Long ribs (10) are arranged on two sides of the top of the inner wall of the lower air duct (1), and the partition plate (2) and the long ribs (10) divide the interior of the lower air duct (1) into an upper cavity (11) and an assembly air duct (12) from top to bottom in sequence; The air deflector (4) is of a hollow thin-wall structure with a wide upper part and a narrow lower part and a long strip shape; The partition board (2) is of a Y-shaped thin-wall structure; the sponge sealing strips (17) are adhered to the joints among the lower air duct (1), the partition plate (2), the instrument desk body (3), the air deflector (4) and the upper cover plate (5).
2. The front defrosting and demisting air duct for the long-head heavy truck instrument desk according to claim 1, wherein the boss column (9) is connected to the surface of the mounting hole (7) through a screw (8).
3. The front defrosting and demisting air duct for the long-head heavy-duty truck instrument desk of claim 1, wherein two sides of the inner wall of the upper cover plate (5) are provided with buckling seats (21), the surfaces of the two buckling seats (21) are buckled with buckling holes (23) through buckling buckles (22), and the two buckling holes (23) are respectively formed in two sides of the top of the instrument desk body (3).
4. The front defrosting and demisting air duct for the long-head heavy-duty instrument desk, which is disclosed in claim 1, is characterized in that the lower air duct (1), the partition plate (2), the instrument desk body (3), the air deflector (4) and the upper cover plate (5) are formed by injection molding.

Description

Front defrosting and demisting air duct of long-head heavy-duty truck instrument desk Technical Field The invention relates to the technical field of air channels, in particular to a front defrosting and demisting air channel of a long-head heavy-duty instrument desk. Background In the heavy truck field, the long-head heavy truck cab air conditioner is usually arranged on the right side of the cab, namely, the front defrosting and demisting air duct air inlet is positioned on the right side of the cab. For the flat head heavy truck cab of general air conditioner arrangement in the driver's cabin intermediate position, the heavy truck cab instrument desk wind channel of long head is guaranteeing that defrosting defogging wind gap is even from left to right each position air-out, and it is more difficult to reach vehicle defrosting defogging index, and the current heavy truck instrument desk of long head front defrosting defogging wind channel has following shortcoming: (1) The front defrosting and demisting air duct structure of the long-head heavy-duty instrument desk is mainly a left-right segmented air duct, the number of parts is large, and the occupied arrangement space is large; (2) The front defrosting and demisting air duct of the long-head heavy-duty truck instrument desk is large in weight, an inner reinforcing framework is arranged on the front side of the instrument desk body, and manufacturing cost is high. Disclosure of Invention The invention aims to provide a front defrosting and demisting air duct of a long-head heavy-duty instrument desk, which aims to solve the problems that the existing front defrosting and demisting air duct structure of the long-head heavy-duty instrument desk provided in the background art is mostly a left-right segmented air duct, and has the advantages of large number of parts, large occupied arrangement space, large weight and high manufacturing cost. The front defrosting and demisting air duct of the long-head heavy-duty truck instrument desk comprises a lower air duct, a partition board, an instrument desk body, air deflectors and an upper cover plate, wherein an air inlet is formed in the bottom end of the lower air duct, one side of the top of the lower air duct is provided with a mounting hole, the surface of the mounting hole is connected with a boss column through screw threads, the boss column is arranged in the middle of the partition board, a plurality of welding holes are formed in the top end of the lower air duct, the surfaces of the welding holes are welded with welding columns in a hot-melt mode, the welding columns are fixedly connected to the bottom end of the instrument desk body, the air deflectors are clamped at the top end of the instrument desk body, clamping holes are formed in two sides of the top of the air deflectors, clamping bosses are clamped on the surfaces of the two clamping holes, and the two clamping bosses are fixedly connected to the bottom end of the upper cover plate. When using defrosting defogging wind channel before the heavy truck instrument desk of long head of this technical scheme, highly integrated effectively utilizes limited layout space, has increased the inside sectional area in preceding defrosting defogging wind channel, has reduced offset wind channel along journey pressure loss, promotes defrosting defogging efficiency before the vehicle, the cost is reduced. As a preferable technical scheme of the invention, a ventilation channel is arranged among the instrument desk body, the air deflector and the upper cover plate, a defrosting and demisting air channel is arranged at the top end of the ventilation channel, a plurality of vertical ribs are fixedly connected to the inner wall of the ventilation channel, and the ventilation channel is in a long and narrow groove shape. The ventilation channel is divided into a plurality of rectangular independent small air channels by a plurality of vertical ribs. As an optimized technical scheme of the invention, both sides of the inner wall of the upper cover plate are respectively provided with a clamping seat, the surfaces of the two clamping seats are clamped with clamping holes through clamping buckles, and the two clamping holes are respectively arranged on both sides of the top of the instrument desk body. The upper cover plate is connected with the instrument desk body through a clamping buckle. As a preferable technical scheme of the invention, long ribs are arranged on two sides of the top of the inner wall of the lower air channel, and the partition plate and the long ribs divide the interior of the lower air channel into a cavity and an assembly air channel from top to bottom in sequence. The partition plate and the long ribs divide the interior of the lower air duct. As a preferable technical scheme of the invention, the air deflector is of a hollow thin-wall structure with a wide upper part and a narrow lower part. As a preferable technical scheme of the invention