CN215930061U - Drive box and indoor unit - Google Patents
Drive box and indoor unit Download PDFInfo
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- CN215930061U CN215930061U CN202122087028.1U CN202122087028U CN215930061U CN 215930061 U CN215930061 U CN 215930061U CN 202122087028 U CN202122087028 U CN 202122087028U CN 215930061 U CN215930061 U CN 215930061U
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Abstract
The utility model provides a driving box and an indoor unit, and relates to the technical field of air conditioners. The driving box comprises a mounting frame, a motor and a gear assembly, the mounting frame is used for being connected to the middle frame, the motor is mounted on the mounting frame, the gear assembly is mounted in the mounting frame, so that each driving part can be stably mounted and has a compact structure, in the operation process of the air conditioner, each driving part is not easy to shake, the transmission precision is improved, noise is not generated, one end of the gear assembly is connected with the output shaft of the motor, the other end of the gear assembly is used for driving the air guide door to rotate, wherein, the inner wall of the mounting frame is provided with a convex rib which is used for being matched with the end surface of the gear assembly in a sliding way so as to reduce the contact area between the gear assembly and the wall surface of the mounting frame, in the gear assembly working process, the gear assembly is in sliding fit with the convex ribs, so that direct friction between the gear assembly and the inner wall of the mounting frame is avoided, the gear assembly is prevented from being abraded fast, and friction noise is reduced.
Description
Technical Field
The utility model relates to the technical field of air conditioners, in particular to a driving box and an indoor unit.
Background
The driving mechanism of the air guide door of the existing indoor unit generally adopts the combination of a motor and a gear, the motor drives the gear to rotate, and then the gear drives the air guide door to rotate, and the existing motor and the gear are generally convexly arranged at the end part of a middle frame and are in transmission connection with the air guide door.
However, the structure of the driving mechanism of the existing air guide door is not compact enough, looseness is easy to occur, the transmission precision is low, the friction between the gear and the housing is large, the gear is easy to wear, and after the air conditioner is used for a long time, the problems that the rotating position of the air guide door is not accurate, the friction noise of transmission parts is large and the like are easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problems that: the structure of the driving mechanism of the existing air guide door is not compact enough, looseness easily occurs, the transmission precision is low, and the friction between a gear and a housing is large, so that the gear is easily abraded.
To solve the above problem, in a first aspect, the present invention provides a drive cassette including:
the mounting frame is used for being connected to the middle frame;
the motor is arranged on the mounting frame;
the gear assembly is arranged in the mounting frame, one end of the gear assembly is connected with an output shaft of the motor, and the other end of the gear assembly is used for driving the air guide door to rotate;
wherein, be provided with protruding muscle on the inner wall of installing frame, protruding muscle is used for with the terminal surface sliding fit of gear assembly.
The driving box provided by the embodiment of the utility model at least has the following beneficial effects:
1. the motor and the gear assembly are integrated on the mounting frame, so that each driving part can be stably mounted and has a compact structure, and each driving part is not easy to shake in the operation process of the air conditioner, so that the transmission precision is improved, and noise is not generated;
2. set up protruding muscle on the inner wall of installing frame for with the terminal surface sliding fit of gear assembly, reduce the area of contact of gear assembly and installing frame wall, at the gear assembly working process, gear assembly and protruding muscle sliding fit avoid the gear assembly to rub with the inner wall directness of installing frame, avoid the gear assembly wearing and tearing very fast, also reduce frictional noise.
In an alternative embodiment, the ribs are in the shape of circular rings.
Like this, the gear assembly can whole journey and protruding muscle sliding fit at the rotation in-process, and not only the gear assembly is stable in rotation, moreover, can reduce the wearing and tearing of gear assembly.
In an alternative embodiment, the gear assembly has a raised point on its end face for sliding engagement with the rib.
Like this, the gear assembly utilizes bump and protruding muscle sliding fit, further reduces the area of contact of gear assembly and installing frame wall, further reduces the gear assembly and rotates the wearing and tearing between the in-process and the installing frame wall.
In an alternative embodiment, the mounting frame comprises:
a base for connecting to the middle frame;
and the gear cover is clamped with the base and clamps the gear assembly between the base and the gear cover.
Therefore, the mounting frame is simple in structural form and convenient to assemble.
In an alternative embodiment, a gear assembly comprises:
the first gear is sleeved on an output shaft of the motor;
the second gear is rotatably connected in the mounting frame and is meshed with the first gear;
the third gear is rotatably connected in the mounting frame and meshed with the second gear, and a fixing through hole is formed in the middle of the third gear;
and the pin column is arranged in the fixed through hole and is used for being matched with the air guide door.
Like this, the synchronous syntropy of output shaft of first gear and motor rotates, the synchronous syntropy of third gear and first gear rotates, the synchronous syntropy of round pin post and third gear rotates, the round pin post drives the air guide door again and can make the output shaft of motor and the synchronous syntropy of air guide door rotate, be favorable to the accurate control to the turned angle of air guide door, and, the round pin post is installed in the fixing hole at third gear middle part, make round pin post and the coaxial setting of third gear, not only the compactness of structure has been improved, moreover, the moment of third gear to the round pin post is great, the required power of drive air guide door rotation and the frictional force between the transmission part have been reduced, the possibility of producing the frictional noise has been reduced.
In an optional embodiment, the base is provided with a first limiting hole, the tooth cover is provided with a second limiting hole, the third gear comprises a first shaft section, a gear section and a second shaft section which are sequentially connected, the outer diameter of the first shaft section is not equal to that of the second shaft section, the first shaft section is matched with the first limiting hole, and the second shaft section is matched with the second limiting hole.
Because the external diameter of the first shaft section on the third gear is unequal to the external diameter of the second shaft section, so in the process of assembling the third gear on the mounting frame, an operator can obviously distinguish the first shaft section from the second shaft section, insert the first shaft section into the first limiting hole and sleeve the second limiting hole on the second shaft section, the first shaft section is unlikely to be matched into the second limiting hole, and the second shaft section is matched into the first limiting hole, so that the fool-proof effect is achieved, and the assembly efficiency and the assembly accuracy are improved.
In an optional embodiment, a buckle is arranged on the end face of the third gear, a clamping hole is formed in the end portion of the pin, and the buckle is matched with the clamping hole.
Like this, through making third gear and round pin post joint, avoid the round pin post to appear the drunkenness on the third gear, improve transmission efficiency and reduce shake and noise.
In an alternative embodiment, the end faces of the first gear, the second gear and the third gear are provided with convex points for sliding fit with the convex ribs.
Therefore, in the rotating process of the first gear, the second gear and the third gear, the gears are in sliding fit with the mounting frame through the salient points, and the end faces of the gears are less worn.
In an alternative embodiment, the inner wall of the mounting frame is provided with a convex rib which is in sliding fit with the end surfaces of the first gear, the second gear and the third gear.
Therefore, in the rotating process of the first gear, the second gear and the third gear, the mounting frame is in sliding fit with the gears through the convex ribs, and the abrasion of the end faces of the gears is further reduced.
In a second aspect, the present invention provides an indoor unit including the drive cassette of any one of the preceding embodiments.
Like this, the drive box that the indoor set utilized the first aspect to provide, each drive part is difficult to appear shaking, improves driven precision, also can not send the noise, and the wearing and tearing that the gear assembly received are less.
Drawings
Fig. 1 is a schematic structural diagram of a drive cassette according to a first embodiment of the present invention;
fig. 2 is another schematic structural diagram of a driving box according to a first embodiment of the present invention;
fig. 3 is a schematic full-sectional structure view of a drive cassette according to a first embodiment of the present invention;
fig. 4 is an exploded view of the driving box according to the first embodiment of the present invention;
FIG. 5 is a schematic structural view of the gear assembly;
fig. 6 is a schematic structural diagram of an indoor unit according to a second embodiment of the present invention.
Description of reference numerals: 1-driving the cartridge; 2, mounting a frame; 21-a base; 221-a first hook; 222-a second hook; 223-a first limit hole; 23-a tooth cover; 231-a card interface; 232-a third hook; 233-a second limit hole; 24-a first screw hole; 25-a second screw hole; 26-a convex rib; 3, a motor; 31-a third screw hole; 4-a gear assembly; 41-a first gear; 42-a second gear; 43-third gear; 431-a first shaft section; 432-a gear segment; 433-a second shaft section; 434-fastening; 435-fixing through holes; 44-pins; 441-clamping hole; 45-bumps; 5-an indoor unit; 51-middle frame; 511-mounting groove.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
First embodiment
Referring to fig. 1 to 3, the present embodiment provides a driving box 1, where the driving box 1 includes a mounting frame 2, a motor 3, and a gear assembly 4, where the mounting frame 2 is used to be connected to a middle frame 51, the motor 3 is mounted on the mounting frame 2, the gear assembly 4 is mounted in the mounting frame 2, one end of the gear assembly 4 is connected to an output shaft of the motor 3, and the other end of the gear assembly 4 is used to drive an air guide door to rotate.
Like this, integrate motor 3 and gear assembly 4 on installing frame 2, can make each drive part installation firm, compact structure, in the operation of air conditioner, each drive part is difficult to appear trembling, improves driven precision, also can not send the noise.
Referring to fig. 3 and 4, the mounting frame 2 includes a base 21 and a tooth cover 23, the base 21 is used for being connected to the middle frame 51, and the tooth cover 23 is clamped with the base 21 and clamps the gear assembly 4 between the base 21 and the tooth cover 23. Specifically, one end of the base 21 is provided with a first hook 221, the other end of the base 21 is provided with a second hook 222, one end of the tooth cover 23 is provided with a hook interface 231, the other end of the tooth cover 23 is provided with a third hook 232, the first hook 221 is clamped with the hook interface 231, the second hook 222 is clamped with the third hook 232, and therefore the base 21 and the tooth cover 23 are clamped.
The gear assembly 4 includes a first gear 41, a second gear 42, a third gear 43 and a pin 44, wherein the first gear 41 is sleeved on an output shaft of the motor 3, the second gear 42 is rotatably connected in the mounting frame 2, the second gear 42 is engaged with the first gear 41, the third gear 43 is rotatably connected in the mounting frame 2, the third gear 43 is engaged with the second gear 42, a fixing through hole 435 is formed in the middle of the third gear 43, the pin 44 is installed in the fixing through hole 435 and extends out of the mounting frame 2, the pin 44 is a part extending out of the mounting frame 2 and is used for being matched with the air guide door, preferably, the fixing through hole 435 and the pin 44 are both polygonal, and specifically, the fixing through hole 435 and the pin 44 may be a regular quadrangle or a regular hexagon. Therefore, the pin 44 and the fixing through hole 435 are simple to fit, and the third gear 43 can conveniently drive the pin 44 to rotate without additionally arranging structures such as a transmission pin and a pin hole.
Specifically, the first gear 41 and the second gear 42 may be two gears having the same size and shape, so that the first gear 41 and the second gear 42 do not need to be distinguished, and may be exchanged, thereby reducing the design cost and the production cost and improving the assembly efficiency.
Two clamping holes 441 are further formed in the end portion of the pin 44, two buckles 434 are further arranged on the end face of the third gear 43, and the two buckles 434 are clamped with the two clamping holes 441 respectively, so that the pin 44 is firmly connected with the third gear 43.
The operating principle of the gear assembly 4 is: the first gear 41 and the output shaft of the motor 3 rotate synchronously and in the same direction, because the first gear 41 drives the third gear 43 through the second gear 42, the third gear 43 and the first gear 41 rotate synchronously and in the same direction, the pin 44 and the third gear 43 rotate synchronously and in the same direction, the pin 44 drives the air guide door to enable the output shaft of the motor 3 and the air guide door to rotate synchronously and in the same direction, which is beneficial to accurately controlling the rotation angle of the air guide door, moreover, the pin 44 is arranged in the fixed through hole 435 in the middle of the third gear 43, and the pin 44 and the third gear 43 are arranged coaxially, so that not only is the compactness of the structure improved, but also the moment of the third gear 43 to the pin 44 is larger, the power required for driving the air guide door to rotate and the friction force between transmission parts are reduced, and the possibility of generating friction noise is reduced.
In the actual working process of the gear assembly 4, the output shaft of the motor 3, the axis of the first gear 41, the axis of the second gear 42, the axis of the third gear 43 and the axis of the pin 44 in the gear assembly 4 are all horizontally arranged, so that the horizontal movement of each gear due to the action of self gravity can be avoided, the gears are meshed in place, and the transmission effect is better.
The base 21 is provided with a first limiting hole 223, the tooth cover 23 is provided with a second limiting hole 233, the third gear 43 comprises a first shaft section 431, a gear section 432 and a second shaft section 433 which are sequentially connected, the outer diameter of the first shaft section 431 is not equal to that of the second shaft section 433, the first shaft section 431 is matched with the first limiting hole 223, and the second shaft section 433 is matched with the second limiting hole 233.
Because the outer diameter of the first shaft section 431 on the third gear 43 is not equal to the outer diameter of the second shaft section 433, in the process of assembling the third gear 43 on the mounting frame 2, an operator can obviously distinguish the first shaft section 431 from the second shaft section 433, insert the first shaft section 431 into the first limit hole 223 and sleeve the second limit hole 233 on the second shaft section 433, so that the first shaft section 431 is not matched into the second limit hole 233, and the second shaft section 433 is matched into the first limit hole 223, thereby achieving the foolproof effect and improving the assembly efficiency and the assembly accuracy.
At least two first screw holes 24 are formed in the mounting frame 2, and the mounting frame 2 is connected to the middle frame 51 through the first screw holes 24 and screws. In this way, the mounting frame 2 can be connected to the middle frame 51 by at least two screws, and the position of the mounting frame 2 can be stabilized.
Preferably, at least two first screw holes 24 are located at opposite sides of the mounting frame 2. Like this, arrange two at least screw connections in the relative both sides of installing frame 2, can make the fastening force that installing frame 2 received balanced relatively, be favorable to installing frame 2 holding position to stabilize.
At least two second screw holes 25 are formed in the mounting frame 2, at least two third screw holes 31 are formed in the motor 3, and the second screw holes 25 are connected with the third screw holes 31 through screws. In this way, the motor 3 is connected to the mounting frame 2 by at least two screws, and the position of the motor 3 can be stabilized.
Preferably, at least two third screw holes 31 are located on opposite sides of the motor 3. Like this, arrange two at least screw connections in the relative both sides of motor 3, can make the fastening force that motor 3 received balanced relatively, be favorable to motor 3 to keep the position stable.
Referring to fig. 4, a rib 26 is further disposed on the inner wall of the mounting frame 2, the rib 26 is in a circular ring shape, the rib 26 is configured to be in sliding fit with the end surface of the gear assembly 4, and preferably, the ribs 26 are disposed on the inner wall of the mounting frame 2 and are configured to be in sliding fit with the end surfaces of the first gear 41, the second gear 42, and the third gear 43, respectively. Like this, first gear 41, second gear 42 and third gear 43 are at the rotation in-process, and installing frame 2 utilizes protruding muscle 26 and each gear sliding fit, can reduce the area of contact of gear assembly 4 and installing frame 2 wall, avoids the inner wall direct friction of gear assembly 4 and installing frame 2, and the terminal surface that reduces each gear receives is less, also reduces the noise of friction.
Referring to fig. 5, the end surfaces of the first gear 41, the second gear 42 and the third gear 43 are provided with protruding points 45 for sliding fit with the protruding ribs 26, that is, in the working process of the gear assembly 4, the protruding points 45 on the end surfaces of the first gear 41, the second gear 42 and the third gear 43 are respectively in sliding fit with the corresponding protruding ribs 26, so that in the rotating process of the first gear 41, the second gear 42 and the third gear 43, each gear is in sliding fit with the mounting frame 2 by using the protruding points 45, the contact area between each gear and the wall surface of the mounting frame 2 is further reduced, the abrasion between each gear and the wall surface of the mounting frame 2 in the rotating process is further reduced, and the friction noise is also reduced.
The present embodiment provides the driving cartridge 1 with advantageous effects including:
1. the motor 3 and the gear assembly 4 are integrated on the mounting frame 2, so that each driving part can be stably mounted and has a compact structure, and each driving part is not easy to shake in the operation process of the air conditioner, so that the transmission precision is improved, and noise is not generated;
2. the gear assembly 4 comprises three gears which are sequentially driven, the pin 44 is arranged in the middle of the third gear 43, the output shaft of the motor 3, the third gear 43 and the pin 44 rotate synchronously and in the same direction, which is beneficial to accurately controlling the rotation angle of the air guide door, moreover, the pin 44 is arranged in the fixed through hole 435 in the middle of the third gear 43, so that the pin 44 and the third gear 43 are coaxially arranged, not only is the structure compactness improved, but also the moment of the third gear 43 on the pin 44 is larger, the power required for driving the air guide door to rotate and the friction force between transmission parts are reduced, and the possibility of generating friction noise is reduced;
3. the convex rib 26 is arranged on the inner wall of the mounting frame 2 and is used for being in sliding fit with the end face of the gear assembly 4, so that the contact area between the gear assembly 4 and the wall face of the mounting frame 2 is reduced, the gear assembly 4 is in sliding fit with the convex rib 26 in the working process of the gear assembly 4, direct friction between the gear assembly 4 and the inner wall of the mounting frame 2 is avoided, the gear assembly 4 is prevented from being worn quickly, and friction noise is reduced;
4. the end surfaces of the gears in the gear assembly 4 are provided with convex points 45 which are in sliding fit with the convex ribs 26, so that the contact area between each gear and the wall surface of the mounting frame 2 is further reduced, and the abrasion between each gear and the wall surface of the mounting frame 2 in the rotating process is further reduced;
5. the outer diameter of the first shaft section 431 on the third gear 43 is designed to be unequal to the outer diameter of the second shaft section 433, so that an operator can obviously distinguish the first shaft section 431 from the second shaft section 433, the first shaft section 431 is inserted into the first limit hole 223 and the second limit hole 233 is sleeved on the second shaft section 433, the first shaft section 431 is unlikely to be matched into the second limit hole 233, and the second shaft section 433 is matched into the first limit hole 223, so that the fool-proof effect is achieved, and the assembly efficiency and the assembly accuracy are improved.
Second embodiment
Referring to fig. 6, the present embodiment provides an indoor unit 5, where the indoor unit 5 includes a middle frame 51, an end cover (not shown in the figure), and the driving box 1 provided in the first embodiment.
Wherein, the tip indent of center 51 forms mounting groove 511, drive box 1 is connected in mounting groove 511, the installation department is connected on the diapire of mounting groove 511, drive box 1 is used for driving wind-guiding door and rotates, the tip at center 51 is installed to the end cover, and cover mounting groove 511, the tip evagination of drive box 1 for center 51 has been avoided, make the appearance of indoor set 5 tip level and smooth, pleasing to the eye, moreover, the steadiness of drive box 1 installation can both be strengthened to mounting groove 511 and end cover, also avoid impurity such as dust to get into in drive box 1, influence the transmission effect of drive box 1. Moreover, the form of the driving box 1 is used for driving the air guide door, so that each driving part can be stably installed and accurately transmitted, and in the operation process of the air conditioner, each driving part is not easy to shake and generate noise.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (10)
1. A drive cartridge, comprising:
a mounting frame (2) for connecting to the middle frame (51);
the motor (3) is arranged on the mounting frame (2);
the gear assembly (4) is installed in the installation frame (2), one end of the gear assembly (4) is connected with an output shaft of the motor (3), and the other end of the gear assembly (4) is used for driving the air guide door to rotate; the inner wall of the mounting frame (2) is provided with a convex rib (26), and the convex rib (26) is used for being in sliding fit with the end face of the gear assembly (4).
2. A cartridge as claimed in claim 1, characterized in that said rib (26) is annular in shape.
3. The drive cartridge according to claim 1, wherein a raised point (45) is provided on an end face of the gear assembly (4), the raised point (45) being adapted to slidingly engage with the rib (26).
4. The drive cartridge according to claim 1, wherein the mounting frame (2) comprises:
a base (21) for connecting to the middle frame (51);
the gear cover (23) is clamped with the base (21), and the gear assembly (4) is clamped between the base (21) and the gear cover (23).
5. The drive cassette according to claim 4, wherein the gear assembly (4) comprises:
the first gear (41) is sleeved on an output shaft of the motor (3);
the second gear (42) is rotatably connected in the mounting frame (2), and the second gear (42) is meshed with the first gear (41);
the third gear (43) is rotatably connected in the mounting frame (2), the third gear (43) is meshed with the second gear (42), and a fixing through hole (435) is formed in the middle of the third gear (43); the pin column (44) is installed in the fixing through hole (435), and the pin column (44) is used for being matched with the air guide door.
6. The drive box according to claim 5, wherein the base (21) is provided with a first limiting hole (223), the tooth cover (23) is provided with a second limiting hole (233), the third gear (43) comprises a first shaft section (431), a gear section (432) and a second shaft section (433) which are sequentially connected, the outer diameter of the first shaft section (431) is not equal to the outer diameter of the second shaft section (433), the first shaft section (431) is matched with the first limiting hole (223), and the second shaft section (433) is matched with the second limiting hole (233).
7. The drive box according to claim 5, characterized in that the end surface of the third gear (43) is provided with a catch (434), the end of the pin (44) is provided with a catch hole (441), and the catch (434) is matched with the catch hole (441).
8. A cartridge as claimed in claim 5, characterised in that the end faces of the first (41), second (42) and third (43) gears are each provided with a raised point (45) for sliding engagement with the rib (26).
9. A drive cartridge according to claim 5, wherein the inner wall of the mounting frame (2) is provided with the ribs (26) which are slidably fitted with the end faces of the first gear (41), the second gear (42) and the third gear (43), respectively.
10. An indoor unit, characterized in that the indoor unit comprises the drive cassette of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122087028.1U CN215930061U (en) | 2021-08-31 | 2021-08-31 | Drive box and indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122087028.1U CN215930061U (en) | 2021-08-31 | 2021-08-31 | Drive box and indoor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215930061U true CN215930061U (en) | 2022-03-01 |
Family
ID=80421824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122087028.1U Active CN215930061U (en) | 2021-08-31 | 2021-08-31 | Drive box and indoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215930061U (en) |
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2021
- 2021-08-31 CN CN202122087028.1U patent/CN215930061U/en active Active
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