CN218717569U - Double-through-flow air supply device - Google Patents
Double-through-flow air supply device Download PDFInfo
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- CN218717569U CN218717569U CN202223039662.9U CN202223039662U CN218717569U CN 218717569 U CN218717569 U CN 218717569U CN 202223039662 U CN202223039662 U CN 202223039662U CN 218717569 U CN218717569 U CN 218717569U
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Abstract
The utility model provides a two through-flow air supply arrangement, relates to air supply equipment technical field, includes: two through-flow parts, a middle partition block and a driving part; the two through-flow parts are distributed on two sides of the middle partition block, each through-flow part comprises a through-flow impeller which is rotationally connected with the middle partition block through a rotating shaft, a power output end of the driving part is connected with the rotating shafts of the two through-flow parts, each through-flow impeller comprises a plurality of impeller sections A and impeller sections B which are coaxially and fixedly connected, the number of blades, the chord length of the blades or the inlet and outlet angles of the blades in the impeller sections A and the impeller sections B are different, and the impeller sections B are positioned at one ends of the through-flow impellers close to or far away from the middle partition block; under the condition of not changing the structure of the through-flow air duct, the problem of rapid pressure attenuation of the outlet face caused by the pressure leakage problem of the gaps between the impeller and surrounding structural parts is weakened only by improving the self capacity of the impellers at two ends of the through-flow impeller, so that the pressure balance of the whole double through-flow air ducts is improved.
Description
Technical Field
The utility model relates to an air supply equipment technical field, concretely relates to two through-flow air supply arrangement.
Background
The main structural form of the prior double cross-flow fans applied to the indoor unit of the air conditioner is parallel connection, including the parallel connection of the same rotating shaft and the parallel connection of different rotating shafts, wherein the parallel connection of the same rotating shaft in the prior technical means only utilizes an intermediate structure to connect and fix two cross-flow fans, so that the parallel connection of the fans in the physical sense is realized.
In the Chinese utility model patent with the publication number of CN210977940U, a double cross-flow fan is disclosed, wherein two cross-flow parts with symmetrical design are adopted, two wind wheels with shorter length are symmetrically arranged at two sides of a motor and are synchronously driven by the motor, thereby avoiding various defects brought by overlong wind wheels and doubling the air supply width; however, in the above patent, two wind wheels may produce interference effect and performance may be degraded; secondly, because enough safety clearance must be reserved between the cross-flow fan and surrounding structural parts when the cross-flow fan is used, especially for a double cross-flow fan system with the same rotating shaft, the safety clearance near the two cross-flow fan separation sections is more, and compared with a single cross-flow fan system, pressure leakage can be caused to a great extent due to more clearance, so that the comprehensive performance of the fan is greatly influenced.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a two through-flow air supply arrangement, it has solved the problem of the performance decay of the two through-flow fan that exist among the prior art.
A double cross-flow air supply device comprises:
two through-flow parts, a middle partition block and a driving part;
the two through-flow parts are distributed on two sides of the middle partition block, each through-flow part comprises a through-flow impeller which is rotationally connected with the middle partition block through a rotating shaft, and the power output end of the driving part is connected with the rotating shafts of the two through-flow parts;
each through-flow impeller comprises a plurality of impeller sections A and impeller sections B which are coaxially and fixedly connected, the number of blades, the chord length of the blades or the inlet and outlet angles of the blades in the impeller sections A and B are different, and the impeller section B is positioned at one end of the through-flow impeller close to or far away from the middle spacer block.
Compared with the prior art, the utility model discloses following beneficial effect has: the pressure performance of the impeller section B is improved by changing the impeller parameters such as the number of blades in the impeller section B, the chord length of the blades or the inlet and outlet angles of the blades, and the impeller section B is arranged at one end of the through-flow impeller close to or far away from the middle spacer block, so that the problem of fast pressure attenuation of the outlet face caused by the pressure leakage problem of the gaps between the impeller and surrounding structural parts is weakened by only improving the capacity of the impellers at two ends of the through-flow impeller under the condition of not changing the structure of the through-flow air channel, and the pressure balance of the whole double through-flow air channels is improved; the problem of airflow disorder caused by unstable pressure at the outlet of the double-through-flow air duct due to pressure attenuation can be effectively reduced, noise is greatly reduced, and air duct efficiency is improved.
Preferably, the two rotating shafts are coaxially arranged, the driving part comprises a motor fixedly installed in the middle partition block, the motor is provided with two power output shafts, and the two power output shafts are coaxially and fixedly connected with the two rotating shafts in a one-to-one correspondence mode.
Preferably, each through-flow part further comprises a housing fixedly connected with the middle partition block, the rotating shaft is rotatably mounted in the housing, and one end of the rotating shaft freely penetrates through the housing to be rotatably connected with the middle partition block.
Preferably, the two rotating shafts are arranged in a staggered manner, the driving part comprises two motors, the two motors are fixedly mounted at one end, far away from the middle spacer block, of the housing of the two through-flow parts in a one-to-one correspondence manner, and the power output shaft of each motor freely penetrates through the housing and is coaxially and fixedly connected with the rotating shafts.
Preferably, the two rotation axes have an included angle therebetween, and the included angle is smaller than 20 °.
Preferably, the number of B impeller segments does not exceed two.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a front view of the impeller a and the impeller B of fig. 1 in another assembled relationship.
Fig. 3 is a front view of another embodiment of the present invention.
Fig. 4 is a front view of another embodiment of the present invention.
The numbers in the figures are in order: 1. a housing; 2. a, an impeller section; 3. b, an impeller section; 4. a rotating shaft; 5. a middle spacer block; 6. an electric motor.
Detailed Description
In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:
as shown in fig. 1-2, an embodiment of the present invention provides a dual through-flow air supply apparatus, including: two through-flow parts, a middle partition block 5 and a driving part; the two through-flow parts are distributed on two sides of the middle partition block 5, each through-flow part comprises a through-flow impeller which is rotatably connected with the middle partition block 5 through a rotating shaft 4, and the power output end of the driving part is connected with the rotating shafts 4 of the two through-flow parts; each cross-flow impeller comprises a plurality of impeller sections A2 and impeller sections B3 which are coaxially and fixedly connected, the number of blades, the chord length of the blades or the inlet and outlet angles of the blades in the impeller sections A2 and B3 are different, and the impeller section B3 is positioned at one end of the cross-flow impeller close to or far away from the middle spacer block 5; and preferably the number of B wheel segments 3 does not exceed two.
Through changing the number of blades in the B impeller section 3, the chord length of the blades or the inlet and outlet angles of the blades and other impeller parameters, the pressure performance of the B impeller section 3 is improved by more than 20% compared with the A impeller section 2 after the B impeller section 3 is subjected to the above treatment through tests, and the B impeller section 3 is arranged at one end of the through-flow impeller close to or far away from the middle spacer block 5, so that the problem of fast pressure attenuation of the outlet face caused by the pressure leakage problem of the gaps between the impeller and surrounding structural members is weakened by only improving the capability of the impellers at two ends of the through-flow impeller under the condition of not changing the structure of the through-flow air channel, and the pressure balance of the whole double through-flow air channels is improved; the problem of airflow disorder caused by unstable pressure at the outlet of the double-through-flow air duct due to pressure attenuation can be effectively reduced, noise is greatly reduced, and the air duct efficiency is improved; when the parameters of the blades of the impeller section 3B are changed, only one parameter can be changed, a plurality of parameters can be changed simultaneously, and the parameters can be flexibly selected according to requirements.
As shown in fig. 1-2, according to another embodiment of the present invention, the double cross-flow air supply device, preferably, two of the rotating shafts 4 are coaxially arranged, the driving portion includes a motor 6 (not shown) fixedly installed in the middle spacer 5, the motor 6 (not shown) has two power output shafts, and the two power output shafts are coaxially and fixedly connected with the two rotating shafts 4 in a one-to-one correspondence; wherein the motor 6 is a double-head motor, and the two rotating shafts 4 can be driven to synchronously rotate by the single motor 6.
As shown in fig. 1-4, according to another embodiment of the present invention, the dual through-flow air supply device, preferably, each of the through-flow portions further includes a housing 1 fixedly connected to the middle spacer 5, the rotating shaft 4 is rotatably installed in the housing 1, and one end of the rotating shaft 4 freely passes through the housing 1 and is rotatably connected to the middle spacer 5; the housing 1 can protect the cross-flow impeller and facilitate the installation of the cross-flow impeller.
As shown in fig. 3, according to another embodiment of the present invention, the double through-flow air supply device, preferably, two, are disposed at the position of the rotating shaft 4, the driving portion includes two motors 6, the two motors 6 are fixedly mounted at one end of the housing 1 of the two through-flow portions, which is far away from the middle spacer 5, and the power output shaft of each motor 6 freely passes through the housing 1 and is coaxially and fixedly connected with the rotating shaft 4.
As shown in fig. 4, according to another embodiment of the present invention, the double cross-flow air supply device preferably has an included angle between two of the rotating shafts 4, and the included angle is smaller than 20 °.
The rotating shaft 4 in the two embodiments can be installed in a staggered mode or at a certain angle according to the actual use condition of the device, and therefore the applicability of the device is improved.
The utility model discloses an application principle does: the pressure performance of the impeller section 3B is improved by changing the impeller parameters such as the number of blades in the impeller section 3B, the chord length of the blades or the inlet and outlet angles of the blades, and the impeller section 3B is arranged at one end of the through-flow impeller close to or far away from the middle spacer block 5, so that the problem of rapid pressure attenuation of an outlet face caused by the problem of pressure leakage of gaps between the impeller and surrounding structural parts is weakened only by improving the capacity of the impellers at two ends of the through-flow impeller under the condition of not changing the structure of the through-flow air channel, and the pressure balance of the whole double through-flow air channels is improved; the problem of airflow disorder caused by unstable pressure at the outlet of the double-through-flow air duct due to pressure attenuation can be effectively reduced, noise is greatly reduced, and the air duct efficiency is improved; in addition, the installation mode of the two rotating shafts 4 can be selected according to the actual use condition, so that the applicability of the device is improved.
Finally, it is noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. A double cross-flow air supply device is characterized by comprising:
two through-flow parts, a middle partition block (5) and a driving part;
the two through-flow parts are distributed on two sides of the middle partition block (5), each through-flow part comprises a through-flow impeller which is rotationally connected with the middle partition block (5) through a rotating shaft (4), and the power output end of the driving part is connected with the rotating shafts (4) of the two through-flow parts;
each through-flow impeller comprises a plurality of impeller sections A (2) and impeller sections B (3) which are coaxially and fixedly connected, the number of blades, the chord length of the blades or the inlet and outlet angles of the blades in the impeller sections A (2) and B (3) are different, and the impeller sections B (3) are positioned at one ends of the through-flow impellers close to or far away from the middle spacer block (5).
2. The double cross-flow air supply device according to claim 1, wherein the two rotating shafts (4) are coaxially arranged, the driving part comprises a motor (6) fixedly installed in the middle spacer block (5), the motor (6) is provided with two power output shafts, and the two power output shafts are coaxially and fixedly connected with the two rotating shafts (4) in a one-to-one correspondence manner.
3. The double cross-flow air supply device according to claim 1, wherein each cross-flow part further comprises a casing (1) fixedly connected with the middle partition block (5), the rotating shaft (4) is rotatably installed in the casing (1), and one end of the rotating shaft (4) freely penetrates through the casing (1) to be rotatably connected with the middle partition block (5).
4. The double cross-flow air supply device according to claim 3, wherein the two rotating shafts (4) are arranged in a staggered manner, the driving part comprises two motors (6), the two motors (6) are fixedly arranged at one end, away from the middle spacer block (5), of the housing (1) of the two cross-flow parts in a one-to-one correspondence manner, and the power output shaft of each motor (6) freely penetrates through the housing (1) and is coaxially and fixedly connected with the rotating shafts (4).
5. Double cross-flow blower according to claim 4, characterised in that the axes of rotation (4) are at an angle of less than 20 °.
6. A double cross-flow air supply arrangement according to claim 1, characterised in that the number of B impeller segments (3) does not exceed two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039662.9U CN218717569U (en) | 2022-11-15 | 2022-11-15 | Double-through-flow air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223039662.9U CN218717569U (en) | 2022-11-15 | 2022-11-15 | Double-through-flow air supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717569U true CN218717569U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223039662.9U Active CN218717569U (en) | 2022-11-15 | 2022-11-15 | Double-through-flow air supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717569U (en) |
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2022
- 2022-11-15 CN CN202223039662.9U patent/CN218717569U/en active Active
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