CN204915196U - A drive mechanism for automobile air conditioner control panel - Google Patents

Abstract

The utility model discloses a drive mechanism for automobile air conditioner control panel sets up the knob shell in the top of PCB board, is equipped with axle in the knob in the knob shell, and the below of PCB board sets up amount of wind assembly the bottom installation transmission circle of knob shell, downward an organic whole in bottom of this transmission circle is extended, forms the transmission driving lever, the transmission driving lever passes the circular arc hole of seting up on the PCB board to be connected with the transmission handle of amount of wind assembly top installation. The utility model discloses simple structure, spare part is few, the equipment is easy, low in production cost, transmission are steady reliable, can not produce the stroke drop at the transmission in -process, has effectively ensured the synchronism of amount of wind assembly with the motion of knob shell.

Description

A transmission mechanism for the control panel of automobile air conditioner

technical field

The utility model relates to an automobile air conditioner control panel, in particular to a transmission mechanism of the automobile air conditioner control panel.

Background technique

The air volume knob is controlled by a large current on the car air-conditioning control panel. The shift of the air volume knob gear depends on the rotary movement of the knob shell, while the inner shaft of the knob is fixed. Drive the air volume assembly, that is, the operation knob cannot directly drive the air volume assembly. In order to solve the above technical problems, some manufacturers set a ring of outer teeth on the base of the knob, and connect it with the air volume assembly through a gear mechanism, which has a complex structure, difficult assembly, high production cost, and is prone to stroke drop during the transmission process. , will affect the synchronization of the air volume assembly and the movement of the knob housing.

Utility model content

The technical problem to be solved by the utility model is to provide a transmission mechanism with a simple structure for the control panel of the automobile air conditioner.

The technical scheme of the utility model is as follows: a transmission mechanism for the control panel of the automobile air conditioner, a knob shell is arranged above the PCB board, an inner shaft of the knob is arranged inside the knob shell, and an air volume assembly is arranged below the PCB board, and the characteristic is that : Install a transmission ring at the bottom of the knob shell, the bottom of the transmission ring extends downward integrally to form a transmission lever, the transmission lever passes through the arc hole opened on the PCB, and is installed with the top of the air volume assembly connected to the transmission handle.

Using the above technical scheme, the transmission ring and the knob shell are assembled and tightened, and then connected to the transmission handle through the PCB board. into the purpose. Compared with the background technology, the structure of the utility model is greatly simplified, not only the assembly is easy and the assembly efficiency is high, but also the molds are reduced, which effectively reduces the production cost.

The transmission ring is a ring structure, and a plurality of uniformly distributed buckles are integrally formed on the outer peripheral surface of the upper part of the transmission ring. The buckles are wedge-shaped with a small top and a large bottom. The upper part of the transmission ring extends into the knob shell , the buckle head on the transmission ring is buckled with the corresponding buckle groove provided on the knob shell. The transmission ring of the above structure is simple in shape, tightly buckled with the knob shell, the connection between the two is good, and it is easy to disassemble; the entire transmission mechanism adopts a concentric shaft design, which can ensure the synchronous movement of the transmission ring and the transmission handle, that is, the knob switches a gear position, the air volume assembly switches a gear accordingly.

A plurality of evenly distributed limiting ribs are integrally formed on the outer peripheral surface of the upper part of the transmission ring. The limiting ribs are long strips extending in the up and down direction, and the limiting ribs and the buckle are arranged at intervals on the circumference. The above-mentioned limiting ribs are snapped into corresponding openings provided on the knob housing. The transmission ring is provided with assembly buckles and limit ribs at intervals, and the matching size with the knob shell is larger than half of the height of the main body of the part, which fully guarantees the operation stability of the transmission ring and improves the product quality.

The transmission handle is composed of a sleeve and a cantilever. The sleeve is set on the inner shaft head set on the top of the air flow assembly, and the two are closely matched; the cantilever is "L" shaped, and the horizontal section of the cantilever is connected with the sleeve as a whole. A slot is provided on the vertical section of the cantilever, and the transmission lever is tightly fitted with the slot on the cantilever. The transmission handle of the above structure is simple in shape, firmly connected with the air volume assembly, and easy to disassemble; the transmission ring and the transmission handle slot are precisely matched to avoid the stroke difference between the transmission ring and the transmission handle during rotational movement, and ensure the synchronous movement between the two .

Beneficial effects: the utility model has the advantages of simple structure, few parts, easy assembly, low production cost, stable and reliable transmission, no stroke drop during the transmission process, and effectively ensures the synchronization of the movement of the air volume assembly and the knob shell.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the connection between the transmission ring and the transmission handle.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

As shown in Fig. 1 and Fig. 2, the utility model is composed of a knob shell 1, a knob inner shaft 2, a transmission ring 3, a PCB board 4, a transmission handle 5 and an air volume assembly 6 and the like. Wherein, the knob housing 1 is arranged above the PCB board 4 , and the knob housing 1 is provided with the knob inner shaft 2 , the knob inner shaft 2 is fixed, and the knob housing 1 can rotate relative to the knob inner shaft 2 . The bottom of the knob housing 1 is provided with a transmission ring 3, the transmission ring 3 is a ring structure, and a plurality of uniformly distributed buckle heads 32 are integrally formed on the outer circumferential surface of the upper part of the transmission ring 3, and the buckle heads 32 are small at the top and large at the bottom. wedge shape, the number of buckle heads 32 is determined according to actual needs, and the present embodiment is preferably four. The upper part of the transmission ring 3 extends into the knob housing 1, and the buckle head 32 on the transmission ring 3 is engaged with the corresponding buckle groove provided on the knob housing 1, so that the transmission ring 3 and the knob housing 1 are connected together. A plurality of evenly distributed spacer ribs 33 are integrally formed on the outer peripheral surface of the transmission ring 3 top, preferably four spacer ribs 33, the spacer ribs 33 are elongated strips extending up and down, and the spacer ribs 33 and the buckle head 32 are arranged at intervals on the circumference, and the limiting rib 33 snaps into the corresponding opening on the knob housing 1 .

As shown in FIG. 1 and FIG. 2 , the bottom of the driving ring 3 extends downward integrally to form a driving lever 31 , and the driving lever 31 passes downward through an arc hole 41 provided on the PCB 4 . The air volume assembly 6 is arranged below the PCB board 4 , and the center of the top of the air volume assembly 6 is integrally formed with an inner shaft head 61 . A transmission handle 5 is arranged on the inner shaft head 61, and the transmission handle 5, the air volume assembly 6, the transmission ring 3 and the knob housing 1 adopt a concentric shaft design. The transmission handle 5 is composed of a sleeve 51 and a cantilever 52. The sleeve 51 is sleeved on the inner shaft head 61 at the top of the air volume assembly 6, and the two are closely matched. Cantilever 52 is " L " shape, and the transverse section of cantilever 52 is connected as a whole with sleeve 51 , and the vertical section of cantilever 52 is provided with slot, and the slot on the transmission lever 31 and the cantilever 52 are tightly fitted.

The working principle of the utility model is as follows:

The transmission ring 3 is assembled and tightened with the knob shell. The transmission lever 31 on the transmission ring 3 passes through the PCB board 4 and then connects with the transmission handle 5. The transmission handle 5 is fixed on the air volume assembly 6. The operation knob shell 1 drives the transmission ring 3 , and the transmission handle 5 moves synchronously, so as to realize the purpose of driving the air volume assembly 6 .

Claims (4)

1. A transmission mechanism for an automobile air-conditioning control panel, a knob housing (1) is arranged above the PCB board (4), the knob inner shaft (2) is arranged in the knob housing (1), and the PCB board (4) The air volume assembly (6) is arranged below, and it is characterized in that: a transmission ring (3) is installed at the bottom of the knob housing (1), and the bottom of the transmission ring (3) extends downward integrally to form a transmission lever (31) , the transmission lever (31) passes through the arc hole (41) provided on the PCB board (4), and is connected with the transmission handle (5) installed on the top of the air volume assembly (6). 2. The transmission mechanism for the control panel of the automobile air conditioner according to claim 1, characterized in that: the transmission ring (3) is a ring structure, and the outer peripheral surface of the upper part of the transmission ring (3) is integrally formed with A plurality of evenly distributed buckle heads (32), the buckle heads (32) are wedge-shaped with the upper part small and the lower part large, the top of the transmission ring (3) stretches into the knob housing (1), and the buckle on the transmission ring (3) The head (32) is fastened with the corresponding buckle groove provided on the knob shell (1). 3. The transmission mechanism for the control panel of the automobile air conditioner according to claim 2, characterized in that: a plurality of evenly distributed limiting ribs (33) are integrally formed on the outer peripheral surface of the upper part of the transmission ring (3) ), the limit rib (33) is a strip shape extending up and down, and the limit rib (33) and the buckle head (32) are arranged at intervals on the circumference, and the limit rib (33) is snapped into the knob shell ( 1) In the opening corresponding to the setting above. 4. The transmission mechanism for the automotive air-conditioning control panel according to claim 1, 2 or 3, characterized in that: the transmission handle (5) is composed of a sleeve (51) and a cantilever (52), and the sleeve ( 51) Set it on the inner shaft head (61) provided on the top of the air volume assembly (6), and the two are closely matched; the cantilever (52) is "L" shape, and the transverse section of the cantilever (52) and the sleeve (51 ) are connected as a whole, the vertical section of the cantilever (52) is provided with a slot, and the transmission lever (31) is tightly fitted with the slot on the cantilever (52).