A blower

Abstract

The application relates to a fan technical field and discloses a blower fan, which comprises a casing, an impeller and a driving part. The inside of the casing is limited to form an accommodating cavity. The casing is provided with a blower inlet and a blower outlet which are communicated with the accommodating cavity. The casing is provided with perforations on both end faces in a first direction. The perforations of one end face of the casing are provided with connecting heads. The end face of the connecting head inserted into the accommodating cavity is provided with a plug-in hole. The impeller is arranged in the accommodating cavity. One end of the impeller is provided with a rotating shaft which extends along the first direction and is plugged into the plug-in hole. The other end of the impeller is provided with a protruding block which extends along the first direction and is provided with a connecting hole. The driving part is located on the opposite side of the connecting head and is fixedly connected with the end face of the casing. The output shaft of the driving part penetrates through the end face of the casing and is inserted into the connecting hole. The driving part is used for driving the impeller to rotate in the accommodating cavity. The blower fan does not need to be disassembled and is extremely convenient to disassemble and assemble, so that the cleaning efficiency of the blower fan can be greatly improved.

Description

Technical Field

[0001] This application relates to the field of fan technology, and in particular to a blower. Background Technology

[0002] Currently, mainstream blowers on the market mainly consist of a drive motor, impeller, casing, inlet, and outlet. Their working principle is as follows: the drive motor drives the shaft and the impeller fixed on the shaft to rotate at high speed. During the impeller's rotation, it generates centrifugal force or axial thrust on the gas inside the casing, causing the gas to be drawn in through the inlet under pressure difference. After being accelerated and pressurized by the impeller, the gas is discharged through the outlet, thus achieving gas delivery. However, after long-term use, the impeller surface of modern blowers accumulates a lot of dust, requiring disassembly and regular cleaning. However, the blower's complex structure makes disassembly extremely inconvenient, and if quick installation is not possible, it becomes extremely time-consuming. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a blower.

[0004] This application provides a blower, comprising: The housing has an internally defined cavity. The housing has an air inlet and an air outlet that communicate with the cavity. The housing has through holes on both end faces in a first direction. A connector is installed at the through hole on one of the end faces of the housing. The end face of the connector that extends into the cavity has a plug-in hole. An impeller is disposed within the receiving cavity. One end of the impeller is provided with a rotating shaft extending along the first direction, which is inserted into the insertion hole. The other end of the impeller is provided with a protrusion extending along the first direction and having a connecting hole. A drive unit is located on the opposite side of the connector and is fixedly connected to the end face of the housing. The output shaft of the drive unit passes through the end face of the housing to extend into the receiving cavity and is inserted into the connecting hole. The drive unit is used to drive the impeller to rotate within the receiving cavity.

[0005] In one embodiment, the impeller includes a left shaft cover, a middle shaft cover, and a right shaft cover arranged sequentially at intervals along the first direction. A plurality of first blades distributed circumferentially are provided between the left shaft cover and the middle shaft cover, and the two ends of the first blades are respectively connected to the surfaces of the left shaft cover and the middle shaft cover. A plurality of second blades distributed circumferentially are provided between the right shaft cover and the middle shaft cover, and the two ends of the second blades are respectively connected to the surfaces of the right shaft cover and the middle shaft cover. The pivot is located on the surface of the left shaft cover opposite to the middle shaft cover, and the protrusion is located on the surface of the right shaft cover opposite to the middle shaft cover.

[0006] In one embodiment, the surface of the left shaft cover facing the central shaft cover has a plurality of first insertion holes distributed circumferentially, and the surface of the central shaft cover facing the left shaft cover has a plurality of second insertion holes distributed circumferentially. The second insertion holes correspond one-to-one with the first insertion holes and are coaxially arranged. The side walls of the first insertion holes and the second insertion holes are provided with interconnected first locking holes. The leeward and windward surfaces of the first blade are provided with first elastic protrusions, which are adapted to the first locking holes to detachably connect the first blade between the left shaft cover and the central shaft cover.

[0007] In one embodiment, the surface of the right shaft cover facing the central shaft cover has a plurality of third insertion holes distributed circumferentially, and the surface of the central shaft cover facing the right shaft cover has a plurality of fourth insertion holes distributed circumferentially. The fourth insertion holes correspond one-to-one with the third insertion holes and are coaxially arranged. The third insertion holes and the fourth insertion holes are provided with connected second locking holes on both sides. The leeward and windward surfaces of the second blade are provided with second elastic protrusions, which are adapted to the second locking holes to detachably connect the second blade between the right shaft cover and the central shaft cover.

[0008] In one embodiment, a locking member is further included. The end face of the housing for connecting with the drive member is provided with two mounting portions extending along the first direction at intervals. The mounting portions are provided with threaded holes extending along the first direction. The drive member is provided with a through hole adapted to the threaded hole. The locking member passes through the through hole and is inserted into the threaded hole so that the drive member can be detachably mounted on the housing.

[0009] In one embodiment, the air inlet is located on one side of the housing in a second direction, and the air outlet is located on the outer peripheral surface of the housing extending along the first direction; wherein, the second direction is perpendicular to the first direction.

[0010] In one embodiment, the housing has a fastening portion extending along the second direction at one end where the air inlet is located, the fastening portion being used to fasten with an external fastener.

[0011] In one embodiment, the end face of the housing on which the connector is mounted is connected to a locking post extending in the second direction, and the locking post has a through hole in the second direction.

[0012] The technical solutions provided in this application have the following advantages compared with the prior art: The blower is assembled by installing a connector on one end face of the housing, with a plug-in hole on the connector. The drive component is fixedly connected to the other end face of the housing. One end of the impeller has a rotating shaft that plugs into the plug-in hole, and the other end has a protrusion that connects to the output shaft of the drive component. This allows the blower to be assembled in a plug-in manner. When disassembly for cleaning is required, simply loosen the fixation between the drive component and the housing, pull the output shaft of the drive component out of the connection hole of the protrusion, and then pull the impeller away from the connector in the first direction to pull the rotating shaft on the impeller out of the plug-in hole of the connector. This allows the impeller to be quickly removed from the housing for cleaning. When assembling, simply insert the rotating shaft on the impeller back into the plug-in hole of the connector, then insert the output shaft of the drive component back into the connection hole of the protrusion and fix the drive component. This completes the assembly without disassembling the complex structure, making disassembly and assembly extremely convenient and significantly improving the cleaning efficiency of the blower. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a blower according to this application; Figure 2 This is a schematic diagram of the casing of a blower according to this application; Figure 3 This is an exploded view of the casing of a blower according to this application; Figure 4 This is a schematic diagram of the impeller structure in a blower according to this application; Figure 5 This is a schematic diagram of the structure of the left shaft cover in a blower according to this application; Figure 6 This is a schematic diagram of the structure of the central shaft cover in a blower according to this application; Figure 7 This is a schematic diagram of the structure of the first blade in a blower according to this application.

[0014] Icon labels: 10. Housing; 10a. Blower inlet; 10b. Blower outlet; 10c. Perforation; 11. End plate; 12. Connecting plate; 13. Cover plate; 20. Impeller; 21. Left shaft cover; 21a. First insertion hole; 21b. First locking hole; 22. Central shaft cover; 22a. Second insertion hole; 22b. Second locking hole; 23. Right shaft cover; 24. First blade; 24a. Wind-receiving surface; 24b. Lee-winding surface; 30. Connector; 40. Drive component; 50. Fastening part; 60. Locking post; 60a. Through hole; 70. Locking component; 80. Protrusion; 80a. Connecting hole; 90. First elastic protrusion; A. Threaded hole; X. First direction; Y. Second direction. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0016] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0018] To facilitate the description of the positional relationships between components, this application defines a first direction X and a second direction Y that are perpendicular to each other, specifically using the housing 10 as a reference. The first direction X refers to the length direction of the housing 10 (refer to...). Figure 1 The X direction in the diagram refers to the direction of the height of the casing 10 (see reference). Figure 1 Y direction in ).

[0019] like Figures 1 to 7As shown in the figure, a blower according to an embodiment of the present invention includes a housing 10, an impeller 20, and a drive member 40. The housing 10 has an internal cavity, and an air inlet 10a and an air outlet 10b communicating with the cavity are provided on the housing 10. The impeller 20 is disposed within the cavity. The drive member 40 drives the impeller 20 to rotate around its own axis in a first direction X, so that external air is drawn into the cavity through the air inlet 10a, accelerated by the rotation of the impeller 20, and then blown out through the air outlet 10b, thereby achieving the blowing function. It should be noted that the drive member 40 provides the necessary power to drive the impeller 20 to rotate. Specifically, it can be a servo motor or any existing power component capable of driving the impeller 20 to rotate; there is no limitation on this.

[0020] Specifically, the housing 10 has through holes 10c on both end faces in the first direction X. A connector 30 is installed at the through hole 10c on one end face of the housing 10. The end face of the connector 30 that extends into the receiving cavity has an insertion hole. The impeller 20 is located in the receiving cavity. One end of the impeller 20 has a rotating shaft extending along the first direction X, which is inserted into the insertion hole. The other end of the impeller 20 has a protrusion 80 extending along the first direction X and having a connecting hole 80a. The drive member 40 is located on the opposite side of the connector 30 and is fixedly connected to the end face of the housing 10. The output shaft of the drive member 40 passes through the end face of the housing 10 to extend into the receiving cavity and is inserted into the connecting hole 80a. The drive member 40 is used to drive the impeller 20 to rotate in the receiving cavity.

[0021] When in operation, the drive unit 40 is activated, and its output shaft rotates around the first direction X. Since the output shaft of the drive unit 40 passes through the end face of the housing 10 and is inserted into the connecting hole 80a of the protrusion 80 at one end of the impeller 20, while the rotating shaft at the other end of the impeller 20 is always inserted into the insertion hole of the connector 30 installed on the end face of the housing 10, the impeller 20 is driven to rotate synchronously in the receiving cavity of the housing 10. At this time, external air is drawn into the receiving cavity through the blower inlet 10a, and after being accelerated by the rotation of the impeller 20, it is discharged from the blower outlet 10b, thereby realizing the blower function.

[0022] In practical applications, the housing 10 can be composed of a one-piece molded shell and a cover plate 13. First, a one-piece molding process is used to form the shell, consisting of two end plates 11 and a connecting plate 12 spaced apart between them. The two end plates 11 and the two connecting plates 12 define a receiving cavity. Then, the cover plate 13 is fixedly connected to the top of one of the connecting plates 12, and the two end faces of the cover plate 13 are fixedly connected to the two end plates 11 respectively, thus completing the assembly of the housing 10. When it is necessary to remove the impeller 20 from the housing 10, the cover plate 13 is removed from the shell to facilitate disassembly of the impeller 20 by the operator.

[0023] In other words, the blower of this application has a connector 30 installed on one end face of the housing 10, with a plug-in hole in the connector 30. The drive component 40 is fixedly connected to the other end face of the housing 10. One end of the impeller 20 has a shaft that plugs into the plug-in hole, and the other end has a protrusion 80 connected to the output shaft of the drive component 40. This allows the blower to be assembled using a plug-in connection. When disassembly for cleaning is required, simply loosen the fixation between the drive component 40 and the housing 10, and then release the output shaft of the drive component 40 from the connection hole 80 of the protrusion 80. Pull out of the cavity, and then pull the impeller 20 away from the connector 30 along the first direction X, so that the shaft on the impeller 20 is pulled out from the insertion hole of the connector 30. This completes the quick removal of the impeller 20 from the receiving cavity for cleaning. When assembling, simply insert the shaft on the impeller 20 back into the insertion hole of the connector 30, and then insert the output shaft of the drive component 40 back into the connection hole 80a of the protrusion 80 and fix the drive component 40. This completes the assembly without disassembling the complex structure, making disassembly and assembly extremely convenient and greatly improving the cleaning efficiency of the blower.

[0024] In one embodiment, the impeller 20 includes a left shaft cover 21, a middle shaft cover 22, and a right shaft cover 23 arranged sequentially at intervals along a first direction X. A plurality of first blades 24 distributed circumferentially are provided between the left shaft cover 21 and the middle shaft cover 22, with both ends of the first blades 24 connected to the surfaces of the left shaft cover 21 and the middle shaft cover 22, respectively. A plurality of second blades distributed circumferentially are provided between the right shaft cover 23 and the middle shaft cover 22, with both ends of the second blades connected to the surfaces of the right shaft cover 23 and the middle shaft cover 22, respectively. The rotating shaft is located on the surface of the left shaft cover 21 opposite to the middle shaft cover 22, and a protrusion 80 is located on the surface of the right shaft cover 23 opposite to the middle shaft cover 22. In other words, the impeller 20 cleverly uses the central shaft cover 22 as an intermediate support, while connecting the first blade 24 and the second blade between the left shaft cover 21 and the right shaft cover 23, so that the impeller 20 forms a three-section rigid frame of left-middle-right, which can disperse the radial force (such as centrifugal force, airflow impact force, etc.) when the blades rotate, avoid shaft cover deformation and blade breakage, and effectively extend the service life of the impeller 20.

[0025] Specifically, the surface of the left shaft cover 21 facing the middle shaft cover 22 has a plurality of first insertion holes 21a distributed circumferentially, and the surface of the middle shaft cover 22 facing the left shaft cover 21 has a plurality of second insertion holes 22a distributed circumferentially. The second insertion holes 22a correspond one-to-one with the first insertion holes 21a and are coaxially arranged. The two side walls of the first insertion holes 21a and the second insertion holes 22a are provided with connected first locking holes 21b. The leeward side 24b and the windward side 24a of the first blade 24 are provided with first elastic protrusions 90. The first elastic protrusions 90 are adapted to the first locking holes 21b so as to detachably connect the first blade 24 between the left shaft cover 21 and the middle shaft cover 22. Thus, during installation, simply align the two ends of the first blade 24 with the coaxial first insertion hole 21a and second insertion hole 22a and insert it until the first elastic protrusion 90 of the first blade 24 is engaged in the first locking hole 21b to complete the fixation. During disassembly, simply pull the left shaft cover 21 outward so that the first elastic protrusion 90 deforms and disengages from the first locking hole 21b, and the first blade 24 can be directly pulled out. No tools are required throughout the process. Compared with the traditional fixing methods such as bolt connection and welding, the disassembly and assembly time of the first blade 24 can be significantly shortened. It is especially convenient for cleaning dust or replacing damage to individual pressure plates, avoiding efficiency loss caused by complex maintenance.

[0026] Furthermore, it should be noted that the first elastic protrusion 90 is made of an elastic material such as elastic plastic or rubber, so that it can undergo compression deformation when subjected to external force and return to its original shape after the external force is removed. The shape of the first elastic protrusion 90 also matches the inner contour of the first locking hole 21b. To facilitate understanding of its assembly and disassembly principle, the installation and disassembly stages are explained below: Installation Phase: Align the two ends of the first blade 24 with the first insertion hole 21a of the left shaft cover 21 and the second insertion hole 22a of the middle shaft cover 22, respectively, and apply axial inclination along the length of the first blade 24, so that the two ends of the blade are gradually inserted into the holes. When the first blade 24 is inserted to the point where the first elastic protrusion 90 contacts the hole wall, the hole wall exerts a radial compressive force on the first elastic protrusion 90. Since the first elastic protrusion 90 is elastic, it will deform under the compressive force, temporarily reducing its external dimensions, thereby allowing it to be smoothly inserted. As the blade continues to move along the hole wall into the hole, until both ends of the first blade 24 abut against the bottom of the insertion hole, the first elastic protrusion 90 moves to the position of the first locking hole 21b, causing the pressure of the hole wall on the first elastic protrusion 90 to disappear. The first elastic protrusion 90 immediately returns to its original shape, springing back from the deformed state to the original protruding state, and is completely inserted into the first locking hole 21b, thereby fixing the first blade 24 so that the first blade 24 cannot be pulled out axially or shake radially, thus achieving a stable connection between the blade and the shaft cover.

[0027] Disassembly stage: Remove the impeller 20 as a whole from the receiving cavity, and then pull the left shaft cover 21 outward so that the first blade 24 is subjected to radial external force, causing the first elastic protrusion 90 to deform again, thereby reducing its size to the point that it can disengage from the first locking hole 21b. As the left shaft cover 21 continues to be pulled outward, the first blade 24 is pulled out from the first insertion hole 21a. After the left shaft cover 21 is removed, pull the first blade 24 away from the central shaft cover 22 so that the first blade 24 is pulled out from the second insertion hole 22a, thereby completing the disassembly of the first blade 24.

[0028] Similarly, the surface of the right shaft cover 23 facing the central shaft cover 22 has multiple third insertion holes distributed circumferentially, and the surface of the central shaft cover 22 facing the right shaft cover 23 has multiple fourth insertion holes distributed circumferentially. The fourth insertion holes correspond one-to-one with the third insertion holes and are coaxially arranged. Both sides of the third and fourth insertion holes are provided with interconnected second locking holes 22b. The leeward side 24b and the windward side 24a of the second blade are provided with second elastic protrusions, which are adapted to the second locking holes 22b to detachably connect the second blade between the right shaft cover 23 and the central shaft cover 22. Since the fixing method of the second blade installed on the right shaft cover 23 and the central shaft cover 22 is the same as the fixing method of the first blade 24 installed on the left shaft cover 21 and the central shaft cover 22, the specific disassembly and assembly of the second blade can be referred to the disassembly and assembly of the first blade 24 described above, and will not be repeated here.

[0029] In one embodiment, a locking member 70 is further included. The end face of the housing 10 for connecting with the drive member 40 is provided with two mounting portions extending along a first direction X. Each mounting portion has a threaded hole A extending along the first direction X. The drive member 40 has a through hole 60a that matches the threaded hole A. The locking member 70 passes through a through hole 10c and is inserted into the threaded hole A, so that the drive member 40 is detachably mounted on the housing 10. Thus, by using the locking member 70 to sequentially pass through the through hole 10c and the threaded hole A, the drive member 40 can be detachably mounted on the housing 10, resulting in a simple structure and convenient assembly / disassembly.

[0030] In one embodiment, the blower inlet 10a is located on one side of the housing 10 in the second direction Y, and the blower outlet 10b is located on the outer peripheral surface of the housing 10 extending along the first direction X. That is, the blower inlet 10a and the blower outlet 10b are vertically distributed, so that the airflow forms a smooth path of lateral entry and radial output within the housing 10 cavity. That is, after the external air enters axially from the side inlet, it can directly align with the blade area of ​​the impeller 20, be efficiently captured and pressurized by the rotating blades, and the pressurized airflow is directly discharged from the outlet along the radial direction of the impeller 20 without multiple turns. Compared with the design where the blower inlet 10a and the blower outlet 10b are in the same direction or have a bent path, this design can significantly reduce the eddy currents and impact losses of the airflow in the cavity, and improve the airflow utilization rate and overall blower efficiency.

[0031] In one embodiment, the housing 10 has a fastening portion 50 extending along the second direction Y at one end where an air inlet 10a is provided. The fastening portion 50 is used to fasten with an external fastener. A locking pin 60 extending along the second direction Y is connected to the end face of the housing 10 where the connector 30 is installed. The locking pin 60 has a through hole 60a along the second direction Y. In other words, the fastening portion 50 can be quickly fastened with the external fastener to achieve initial positioning and temporary fixation of the housing 10. Then, fasteners such as bolts and pins are used to pass through the through hole 60a of the locking pin 60 to rigidly lock the housing 10 to the external fastener, preventing the housing 10 from shifting or shaking and ensuring the overall stability of the equipment.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A blower, characterized in that, include: The housing has an internally defined cavity. The housing has an air inlet and an air outlet that communicate with the cavity. The housing has through holes on both end faces in a first direction. A connector is installed at the through hole on one of the end faces of the housing. The end face of the connector that extends into the cavity has a plug-in hole. An impeller is disposed within the receiving cavity. One end of the impeller is provided with a rotating shaft extending along the first direction, which is inserted into the insertion hole. The other end of the impeller is provided with a protrusion extending along the first direction and having a connecting hole. A drive unit is located on the opposite side of the connector and is fixedly connected to the end face of the housing. The output shaft of the drive unit passes through the end face of the housing to extend into the receiving cavity and is inserted into the connecting hole. The drive unit is used to drive the impeller to rotate within the receiving cavity.

2. The blower according to claim 1, characterized in that, The impeller includes a left shaft cover, a middle shaft cover, and a right shaft cover arranged sequentially at intervals along the first direction. A plurality of first blades distributed circumferentially are provided between the left shaft cover and the middle shaft cover, and the two ends of the first blades are respectively connected to the surfaces of the left shaft cover and the middle shaft cover. A plurality of second blades distributed circumferentially are provided between the right shaft cover and the middle shaft cover, and the two ends of the second blades are respectively connected to the surfaces of the right shaft cover and the middle shaft cover. The pivot is located on the surface of the left shaft cover opposite to the middle shaft cover, and the protrusion is located on the surface of the right shaft cover opposite to the middle shaft cover.

3. The blower according to claim 2, characterized in that, The surface of the left shaft cover facing the middle shaft cover has a plurality of first insertion holes distributed circumferentially, and the surface of the middle shaft cover facing the left shaft cover has a plurality of second insertion holes distributed circumferentially. The second insertion holes correspond one-to-one with the first insertion holes and are coaxially arranged. The two side walls of the first insertion holes and the second insertion holes are provided with connected first locking holes. The leeward and windward surfaces of the first blade are provided with first elastic protrusions, which are adapted to the first locking holes to detachably connect the first blade between the left shaft cover and the middle shaft cover.

4. The blower according to claim 2, characterized in that, The surface of the right shaft cover facing the central shaft cover has a plurality of third insertion holes distributed circumferentially, and the surface of the central shaft cover facing the right shaft cover has a plurality of fourth insertion holes distributed circumferentially. The fourth insertion holes correspond one-to-one with the third insertion holes and are coaxially arranged. The third insertion holes and the fourth insertion holes are provided with connected second locking holes on both sides. The leeward and windward surfaces of the second blade are provided with second elastic protrusions, which are adapted to the second locking holes to detachably connect the second blade between the right shaft cover and the central shaft cover.

5. The blower according to claim 1, characterized in that, It also includes a locking component. The end face of the housing for connecting with the drive component is provided with two mounting portions extending along the first direction. The mounting portions are provided with threaded holes extending along the first direction. The drive component has a through hole that matches the threaded hole. The locking component passes through the through hole and is inserted into the threaded hole so that the drive component can be detachably mounted on the housing.

6. The blower according to claim 1, characterized in that, The air inlet is located on one side of the housing in the second direction, and the air outlet is located on the outer peripheral surface of the housing extending along the first direction; wherein, the second direction is perpendicular to the first direction.

7. The blower according to claim 6, characterized in that, The housing has a fastening part extending along the second direction at one end where the air inlet is located. The fastening part is used to fasten with an external fastener.

8. The blower according to claim 7, characterized in that, The end face of the housing with the connector is connected to a locking pin extending in the second direction, and the locking pin has a through hole in the second direction.

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