Cross-flow wind wheel and air conditioner with same

Abstract

The cross-flow wind wheel comprises a wind wheel body and a fixing part, the wind wheel body extends in the axial direction and is provided with a cavity, the fixing part is arranged in the cavity, the fixing part is used for being fixed to a motor shaft of a driving motor, the fixing part is provided with a fixing hole, and the fixing hole is communicated with the cavity. The two axial ends of the wind wheel body are the first end and the second end respectively, an operation opening is formed in the first end, the fixing hole is opposite to the operation opening in the radial direction of the wind wheel body, the operation opening comprises a first notch and a second notch which are connected in the axial direction of the wind wheel body, and the size of the first notch is smaller than that of the second notch in the circumferential direction of the wind wheel body. According to the cross-flow wind wheel provided by the utility model, the opening of the operation port can be smaller, so that an experimental probe can be well prevented from being in contact with a motor shaft or a fixed part during a safety test, the safety requirement is met, a protective net or an insulating structure is well prevented from being additionally arranged, and the production efficiency of an air conditioner is higher and the production cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a cross-flow impeller and an air conditioner having the same. Background Art

[0002] In split wall-mounted air conditioners and floor-standing air conditioners, a cross-flow impeller is usually used to realize the air supply operation during refrigeration and heating. The cross-flow impeller is driven by a motor to rotate. The motor and the cross-flow impeller usually adopt an internal connection method. The drive shaft of the motor extends into the cross-flow impeller and is fixedly connected to the cross-flow impeller through fasteners such as screws. The cross-flow impeller needs to be provided with a screwdriver slot so that disassembly tools such as screwdrivers can extend into the cross-flow impeller to detach the cross-flow impeller from the motor, thereby facilitating the maintenance of the cross-flow impeller.

[0003] In some air conditioning equipment, due to reasons such as the size optimization of the motor, the motor shaft is charged. During the safety regulations test of the air conditioning equipment, the opening of the screwdriver slot is large, and the test probe can extend into the screwdriver slot and contact the motor shaft, thus there is a safety regulations risk. In the related art, for example, a protective net is usually added in split wall-mounted air conditioners or an insulation structure is added to the motor to prevent the test probe from contacting the motor shaft, which increases the number of components of the air conditioner, thereby reducing the production efficiency of the air conditioner and increasing the production cost of the air conditioner. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a cross-flow impeller which can well meet the electrical requirements of the safety regulations test, avoid adding an insulation protection structure, and has higher production efficiency and lower production cost for the air conditioner.

[0005] The utility model also provides an air conditioner having the above cross-flow impeller.

[0006] The cross-flow impeller according to the first aspect of the utility model includes: a wind wheel main body and a fixing part. The wind wheel main body extends along the axial direction and has a cavity. The fixing part is arranged in the cavity and is used for fixing with the motor shaft of the driving motor. The fixing part is provided with a fixing hole. Wherein, the two axial ends of the wind wheel main body are respectively a first end and a second end. The first end is provided with an operation port. The fixing hole is arranged opposite to the operation port in the radial direction of the wind wheel main body. The operation port includes a first notch and a second notch connected axially along the wind wheel main body. In the circumferential direction of the wind wheel main body, the size of the first notch is smaller than that of the second notch.

[0007] According to the cross-flow impeller of the present utility model, by setting the operation port to include a first notch and a second notch, the first notch and the second notch are axially connected along the impeller body, and in the circumferential direction of the impeller body, the size of the first notch is smaller than that of the second notch, so that the operation port can form a necking structure with a smaller opening, which can well avoid the experimental probe contacting the motor shaft or the fixing part during the safety standard test, meet the safety standard requirements, and well avoid adding a protective net or an insulating structure, making the production efficiency of the air conditioner higher and the production cost lower.

[0008] In some embodiments of the present utility model, the first notch is connected to one side of the second notch facing the second end, and the maximum size of the first notch along the circumferential direction of the impeller body is greater than or equal to 6.2 mm and less than or equal to 7.5 mm.

[0009] In some embodiments of the present utility model, the size of the second notch in the axial direction of the impeller body is greater than or equal to 7.5 mm and less than or equal to 8.6 mm.

[0010] In some embodiments of the present utility model, one side wall surface of the second notch facing the second end is formed as a first wall, and the distance between the first wall and the end face of the first end is greater than or equal to 12.5 mm and less than or equal to 15 mm.

[0011] In some embodiments of the present utility model, one side wall surface of the first notch facing the second end is formed as a second wall, and the maximum distance between the second wall and the end face of the first end is greater than or equal to 18.6 mm and less than or equal to 23 mm.

[0012] In some embodiments of the present utility model, in the axial direction of the impeller body, one side wall surface of the first notch facing the second end is the second wall, and the second wall is formed as an arc surface protruding towards the second end.

[0013] In some embodiments of the present utility model, the impeller body includes an end plate and a plurality of blades. The plurality of blades extend along the axial direction and are arranged at intervals in the circumferential direction of the impeller body. The end plate is connected to the plurality of blades. Among them, the impeller body is further provided with connecting ribs. The connecting ribs extend along the circumferential direction of the impeller body and are respectively connected to two of the blades at both ends. The connecting ribs, the two blades and the end plate cooperate to define the operation port.

[0014] In an embodiment of the present utility model, a part of the plurality of blades is formed as a broken blade. One end of the broken blade in the axial direction of the impeller body is connected to the connecting rib. The plurality of broken blades are arranged adjacent to each other in the circumferential direction of the impeller body, and the number of the broken blades is greater than or equal to one and less than or equal to three.

[0015] In some examples of the present utility model, a mating rib is formed on one side of the end plate facing the broken blade. The mating rib extends circumferentially along the wind wheel body. The mating rib, the connecting rib, and the two blades respectively connected to both ends of the connecting rib cooperate to define the operation opening together.

[0016] The air conditioner according to the second aspect of the present utility model includes the cross-flow wind wheel according to the first aspect of the present utility model.

[0017] For the air conditioner according to the present utility model, by providing the cross-flow wind wheel of the above first aspect, the operation opening of the cross-flow wind wheel is set to include a first notch and a second notch. The first notch and the second notch are axially connected along the wind wheel body. In the circumferential direction of the wind wheel body, the size of the first notch is smaller than that of the second notch, so that the operation opening can form a reduced-opening structure, and the opening of the operation opening is smaller. Thus, it can well avoid the experimental probe contacting the motor shaft or the fixing part during the safety standard test, meet the safety standard requirements, and well avoid adding a protective net or an insulating structure, making the production efficiency of the air conditioner higher and the production cost lower.

[0018] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of an air conditioner according to an embodiment of the present utility model;

[0020] Figure 2 is a partially enlarged schematic diagram of the cross-flow wind wheel at the operation opening according to an embodiment of the present utility model;

[0021] Figure 3 is Figure 2 another partially enlarged schematic diagram of the cross-flow wind wheel shown in at the operation opening.

[0022] Reference Numerals:

[0023] 10, cross-flow wind wheel;

[0024] 101, operation opening; 1011, first notch; 10111, second wall; 1012, second notch; 10121, first wall;

[0025] 11, wind wheel body;

[0026] 111, blade; 1111, broken blade; 112, end plate; 1121, mating rib; 113, connecting rib;

[0027] 12, fixing part; 13, fastener; 14, end shaft; 15, middle section plate; 16, balance piece;

[0028] 20. Dust cover;

[0029] 100. Air conditioner. Detailed implementation mode

[0030] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model and should not be construed as a limitation to the present utility model.

[0031] First, refer to Figure 1 A simple description is given to the air conditioner 100 according to the embodiment of the second aspect of the present utility model. In the air conditioner 100, a cross-flow impeller 10 and a driving motor are provided. The driving motor is arranged on one side of the axial direction of the cross-flow impeller 10, and the motor shaft of the driving motor is in transmission connection with the cross-flow impeller 10, so that the driving motor can drive the cross-flow impeller 10 to rotate for air supply operation.

[0032] Next, refer to Figures 1 - 3 Describe the cross-flow impeller 10 according to the embodiment of the first aspect of the present utility model.

[0033] As Figures 1 - 3 shown, the cross-flow impeller 10 according to the embodiment of the first aspect of the present utility model includes: an impeller main body 11 and a fixing part 12. The impeller main body 11 extends along the axial direction (such as the left-right direction shown in Figure 1 ) and has a cavity. The fixing part 12 is arranged in the cavity. The fixing part 12 is used to fix with the motor shaft of the driving motor. The fixing part 12 is provided with a fixing hole. Among them, the two axial ends of the impeller main body 11 are respectively a first end and a second end. The first end is provided with an operation port 101. The fixing hole is arranged opposite to the operation port 101 in the radial direction of the impeller main body 11. The operation port 101 includes a first notch 1011 and a second notch 1012 connected axially along the impeller main body 11. In the circumferential direction of the impeller main body 11, the size of the first notch 1011 is smaller than that of the second notch 1012.

[0034] In this embodiment, the cross-flow impeller 10 includes an impeller main body 11 and a fixing part 12. The fixing part 12 is arranged in the cavity of the impeller main body 11. The fixing part 12 is used to fix with the motor shaft of the driving motor. The structure is simple and the fixing is convenient, making the assembly of the cross-flow impeller 10 and the driving motor in the air conditioner 100 relatively compact, so that the overall size of the air conditioner 100 is smaller.

[0035] In this embodiment, the fixing part 12 is provided with a fixing hole. When the cross-flow impeller 10 is assembled with the driving motor, the motor shaft of the driving motor extends into the cavity and is assembled with the fixing part 12. Exemplarily, the fixing part 12 may have a shaft hole that mates with the motor shaft, and the fixing hole may communicate with the shaft hole. The motor shaft extends into the shaft hole, and the fixing part 12 and the motor shaft can be fixed by a fastener 13 passing through the shaft hole and abutting against the motor shaft. The fastener 13 may be a screw, and the fastener 13 can be threadedly connected to the fixing part 12 to stably press and fix the motor shaft in the shaft hole.

[0036] In this embodiment, the two ends of the impeller body 11 are respectively a first end and a second end. The first end is provided with an operation port 101, and the fixing hole is arranged opposite to the operation port 101 in the radial direction of the impeller body 11, so that the fastener 13 connecting and fixing the cross-flow impeller 10 and the motor shaft is located within the operation port 101 in the radial direction of the impeller body 11. Thus, when disassembling or assembling the cross-flow impeller 10 and the driving motor, a disassembly and assembly tool such as a screwdriver can extend from the operation port 101 into the cavity and conveniently reach the fixing hole, so that the disassembly and assembly tool can conveniently remove or tighten the fastener 13, making the assembly operation of the cross-flow impeller 10 and the driving motor and subsequent maintenance and repair more convenient.

[0037] It can be understood that the driving motor is usually arranged on one side of the cross-flow impeller 10 in the axial direction to facilitate transmission connection with the cross-flow impeller 10 and drive the cross-flow impeller 10 to rotate. The motor shaft extends into the cavity from one end of the cross-flow impeller 10 and is connected to the fixing part 12. In this embodiment, the operation port 101 is arranged at the first end, which can well adapt to the arrangement positions of the cross-flow impeller 10 and the motor shaft and meet the usage requirements.

[0038] It can be understood that in order to meet the arrangement requirements of the cross-flow impeller 10 and the driving motor on the cross-flow impeller 10, the motor shaft often partially protrudes outside the fixing part 12 and is located within the cavity. Exemplarily, the shaft hole of the fixing part 12 that mates with the motor shaft is arranged to penetrate the fixing part 12 along the axial direction of the impeller body 11, so that the motor shaft can be stably and reliably assembled with the fixing part 12, avoiding the situation where the motor shaft and the fixing part 12 cannot be assembled in place in the axial direction of the impeller body 11 due to machining and assembly errors. Moreover, the fixing part 12 is often made of a metal part to meet the stable and reliable connection requirements of the cross-flow impeller 10 and the motor shaft. When the motor shaft is electrified, the fixing part 12 is also electrified.

[0039] In the related art, when the air conditioner 100 is subjected to the safety standard test, since the operation port 101 is set to be relatively large, the probe can extend into the cavity from the operation port 101 and contact the motor shaft or the fixing part 12, thus resulting in a safety standard risk. In this embodiment, the operation port 101 includes a first notch 1011 and a second notch 1012 that are axially connected along the impeller main body 11. The dimension of the first notch 1011 in the circumferential direction of the impeller main body 11 is smaller than the dimension of the second notch 1012 in the circumferential direction of the impeller main body 11, so that the first notch 1011 of the operation port 101 forms a reduced opening structure, reducing the overall opening of the operation port 101.

[0040] It can be understood that the diameter dimension of the experimental probe used when the air conditioner 100 is subjected to the safety standard test is often larger than the diameter dimension of the rod body of the disassembly tool. For example, the rod part of a screwdriver. In this embodiment, the operation port 101 forms a reduced opening structure, enabling a screwdriver or the like to still extend into the operation port 101 for disassembly or assembly operations, preventing the experimental probe from passing through the operation port 101, or preventing the experimental probe from contacting the motor shaft or the fixing part 12 under the obstruction of the smaller operation port 101, thus effectively avoiding the safety standard risk.

[0041] In this embodiment, by limiting the dimension of the operation port 101 to reduce its opening, the operation port 101 can effectively avoid the experimental probe from contacting the motor shaft or the fixing part 12 during the safety standard test while meeting the maintenance and assembly requirements of the cross-flow impeller 10 and the driving motor. As a result, the structural arrangement of the cross-flow impeller 10 and the driving motor can well meet the safety standard requirements. Safety standard refers to the safety standard of electrical products, and the safety standard test refers to a series of tests that electrical products undergo to ensure compliance with the safety standard. The safety standard risk refers to the risk of not meeting the safety standard.

[0042] In this embodiment, by reducing the opening of the operation port 101 to meet the safety standard requirements, it is possible to avoid adding a protective net structure in the air conditioner 100 or adding an insulation structure in the driving motor, etc., thereby preventing an increase in the number of components in the air conditioner 100, making the production and assembly of the air conditioner 100 more efficient and with lower production costs.

[0043] According to the cross-flow wind wheel 10 of the embodiment of the utility model, by setting the operating port 101 to include a first slot 1011 and a second slot 1012, the first slot 1011 and the second slot 1012 are connected along the axial direction of the wind wheel body 11, and in the circumferential direction of the wind wheel body 11, the size of the first slot 1011 is smaller than the size of the second slot 1012, so that the operating port 101 can form a shrinkage structure, and the opening of the operating port 101 is smaller, so that the test probe can be prevented from contacting the motor shaft or the fixing part 12 during the safety test, thereby meeting the safety requirements and avoiding the need to add a protective net or an insulating structure, so that the production efficiency of the air conditioner 100 is higher and the production cost is lower.

[0044] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the first slot 1011 is connected to the side of the second slot 1012 facing the second end, and the maximum dimension of the first slot 1011 along the circumference of the wind wheel body 11 may be greater than or equal to 6.2 mm and less than or equal to 7.5 mm.

[0045] It can be understood that, in the air conditioner 100, the crossflow impeller 10 and the drive motor are both arranged in the shell of the air conditioner 100, and the crossflow impeller 10 is arranged at the air outlet of the shell. When the air conditioner 100 is repaired or assembled, the operation port 101 of the crossflow impeller 10 faces the air outlet, so that a screwdriver or other disassembly tool can be inserted from the air outlet to the operation port 101 for disassembly and assembly. Since the operation port 101 is arranged at the first end of the crossflow impeller 10, after the crossflow impeller 10 is assembled in the air conditioner 100, there is a part of the operation port blocked by the shell. In the case of the operation port 101, in the present embodiment, the first slot 1011 is arranged to be connected to the side of the second slot 1012 facing the second end, so that the second slot 1012 with a larger opening can obtain a certain shielding effect of the shell, so that during the actual assembly and disassembly process of the crossflow impeller 10 and the motor shaft, the effective opening size of the operation port 101 is smaller, thereby more stably and reliably avoiding the situation where the test probe contacts the motor shaft or the fixing part 12 during the safety test, so that the air conditioner 100 can better meet the safety requirements.

[0046] It can be understood that when the motor shaft cooperates with the fixing part 12, the motor shaft extends into the cavity from the first end toward the second end along the circumference of the wind wheel body 11 and is fastened to the fixing part 12 by the fastener 13. When the motor shaft extends out of the fixing part 12, the protruding part of the motor shaft is located on the side of the fixing part 12 facing the second end. In this embodiment, the first notch 1011 is set on the side of the second notch 1012 facing the second end, so that the operating port 101 can form a shrinkage structure at the motor shaft and the fixing part 12 facing the second end, thereby better avoiding contact between the experimental probe and the motor shaft or the fixing part 12, so that the air conditioner 100 can better meet the requirements of safety regulations.

[0047] In this embodiment, the maximum dimension of the first notch 1011 in the circumferential direction of the wind wheel main body 11 is set to be greater than or equal to 6.2 mm, which can meet the operation requirements for disassembly tools such as screwdrivers to extend into the operation port 101 for disassembly or assembly. The maximum dimension of the first notch 1011 in the circumferential direction of the wind wheel main body 11 is set to be less than or equal to 7.5 mm, so that the opening of the first notch 1011 is small to prevent the experimental probe from extending or to prevent the experimental probe from contacting the fixing part 12 or the motor shaft after extending into the first notch 1011, thus well meeting the safety regulations requirements. For example Figure 3 As shown, in the figure, d1 represents the maximum dimension of the first notch 1011 in the circumferential direction of the wind wheel main body 11, and d1 can be 6.2 mm, 6.3 mm, 6.5 mm, 6.8 mm, 7 mm, 7.5 mm, etc.

[0048] In some embodiments of the present utility model, such as Figure 2 and Figure 3 As shown, the dimension of the second notch 1012 in the axial direction of the wind wheel main body 11 can be greater than or equal to 7.5 mm and less than or equal to 8.6 mm.

[0049] In this embodiment, the dimension of the second notch 1012 in the axial direction of the wind wheel main body 11 is set to be greater than or equal to 7.5 mm, so that the second notch 1012 and the first notch 1011 cooperate to form an opening of sufficient size in the axial direction of the wind wheel main body 11, enabling disassembly tools such as screwdrivers to stably, conveniently and easily pass through the operation port 101 for disassembly or the operation of tightening the fastener 13, thus meeting the usage requirements. In this embodiment, the dimension of the second notch 1012 in the axial direction of the wind wheel main body 11 is set to be less than or equal to 8.6 mm, so that the operation port 101 has a small opening, thus well meeting the requirements of safety regulations and avoiding the experimental probe from contacting the live motor shaft or the fixing part 12. For example Figure 3 As shown, in the figure, d2 represents the dimension of the second notch 1012 in the axial direction of the wind wheel main body 11, and d2 can be 7.5 mm, 7.6 mm, 7.8 mm, 8.3 mm, 8.5 mm, 8.6 mm, etc.

[0050] In some embodiments of the present utility model, such as Figure 2 and Figure 3 As shown, one side wall surface of the second notch 1012 facing the second end can be formed as the first wall 10121, and the distance between the first wall 10121 and the end surface of the first end can be greater than or equal to 12.5 mm and less than or equal to 15 mm.

[0051] It can be understood that in the cross-flow impeller 10, when the fixing part 12 is arranged in the cavity, there is a certain distance between the fixing holes of the fixing part 12 and the end of the impeller main body 11 in the axial direction of the impeller main body 11. In this embodiment, there is a certain distance between the fixing holes of the fixing part 12 and the first end. In this embodiment, the side wall surface of the second notch 1012 facing the second end is set as the first wall 10121, and the distance between the first wall 10121 and the end face of the first end is set to be greater than or equal to 12.5 mm, which can make the second notch 1012 and the fixing hole form a relative arrangement position relationship in the radial direction of the impeller main body 11, so that disassembly and assembly tools such as screwdrivers can directly and conveniently extend to the fasteners 13 such as screws after extending into the cavity from the operation port 101 to perform the removal or tightening operation of the fasteners 13, making it more convenient to assemble or separate the cross-flow impeller 10 and the motor shaft.

[0052] In this embodiment, the distance between the first wall 10121 and the end face of the first end is set to be less than or equal to 15 mm, which can make the size of the second notch 1012 in the axial direction of the impeller main body 11 meet the setting requirements, keep the opening of the second notch 1012 at a smaller size, and thus meet the needs of safety regulations. For example Figure 3 As shown, in the figure, d3 represents the distance between the first wall 10121 and the end face of the first end, and d3 can be 12.5 mm, 13 mm, 13.1 mm, 13.6 mm, 14 mm, 15 mm, etc.

[0053] In some embodiments of the present utility model, as Figure 2 and Figure 3 shown, the side wall surface of the first notch 1011 facing the second end is formed as the second wall 10111, and the maximum distance between the second wall 10111 and the end face of the first end can be greater than or equal to 18.6 mm and less than or equal to 23 mm.

[0054] In this embodiment, the side wall surface of the first notch 1011 facing the second end is formed as the second wall 10111, and the maximum distance between the second wall 10111 and the end face of the first end is set to be greater than or equal to 18.6 mm, which can make the first notch 1011 and the second notch 1012 cooperate to form a relative arrangement position relationship with the fixing hole in the radial direction of the impeller main body 11, so that disassembly and assembly tools such as screwdrivers can extend from the operation port 101 to the fixing hole to operate on the fasteners 13 such as screws, making it more convenient for disassembly and assembly tools such as screwdrivers to disassemble or assemble the cross-flow impeller 10 and the motor shaft.

[0055] In this embodiment, the maximum distance between the second wall 10111 and the end face of the first end is set to be less than or equal to 23 mm, so that the operation port 101 formed by the cooperation of the first notch 1011 and the second notch 1012 can maintain a relatively small opening size in the axial direction of the wind wheel main body 11, thus well meeting the requirements of safety regulations. For example Figure 3 As shown, in the figure, d4 represents the maximum distance between the second wall 10111 and the end face of the first end, and d4 can be 18.6 mm, 18.7 mm, 18.9 mm, 20 mm, 21 mm, 22 mm, 22.5 mm, 23 mm, etc.

[0056] In some embodiments of the present utility model, referring to Figure 2 As shown, in the axial direction of the wind wheel main body 11, one side wall surface of the first notch 1011 facing the second end can be the second wall 10111, and the second wall 10111 is formed as an arc surface protruding towards the second end.

[0057] In this embodiment, the second wall 10111 of the first notch 1011 is set as an arc surface protruding towards the second end, and the first notch 1011 can be formed as an arched opening, so that the opening size of the first notch 1011 can be further reduced, making the opening of the operation port 101 smaller, thereby more stably and reliably avoiding the test probe passing through the operation port 101 during the safety regulation test and contacting the motor shaft or the fixing part 12, so that the operation port 101 can better meet the requirements of safety regulations.

[0058] It can be understood that the rod bodies of disassembly and assembly tools such as screwdrivers are usually cylindrical. In this embodiment, the second wall 10111 is set as an arc surface protruding towards the second end, which can well match the shape of the rod bodies of disassembly and assembly tools such as screwdrivers, making it more convenient and smooth for disassembly and assembly tools such as screwdrivers to move or rotate in the operation port 101 when passing through the operation port 101 for disassembly, assembly or assembly operations, so that it is more convenient when assembling the cross-flow wind wheel 10 with the motor shaft or disassembling it for maintenance.

[0059] In some embodiments of the present utility model, referring to Figure 1 and Figure 2 As shown, the wind wheel main body 11 can include an end plate 112 and a plurality of blades 111. The plurality of blades 111 extend axially and are arranged at intervals in the circumferential direction of the wind wheel main body 11. The end plate 112 is connected to the plurality of blades 111. Among them, the wind wheel main body 11 is further provided with a connecting rib 113. The connecting rib 113 extends in the circumferential direction of the wind wheel main body 11 and is respectively connected to two blades 111 at both ends. The connecting rib 113, the two blades 111 and the end plate 112 cooperate to define the operation port 101.

[0060] In this embodiment, the wind wheel main body 11 includes end plates 112 and a plurality of blades 111. The plurality of blades 111 extend along the axial direction of the wind wheel main body 11 and are arranged at intervals in the circumferential direction of the wind wheel main body 11. The structure is simple and can well meet the use requirements of the cross-flow wind wheel 10. The wind wheel main body 11 is provided with connecting ribs 113. The connecting ribs 113 cooperate with two blades 111 and the end plates 112 to define an operation port 101. The structure is simple and facilitates the setting and forming requirements of the operation port 101 on the wind wheel main body 11. The connecting ribs 113 can play a role in strengthening the structure, so that the structure of the operation port 101 can maintain a stable structural state.

[0061] In one embodiment of the present utility model, as Figure 2 shown, a part of the plurality of blades 111 can be formed into broken blades 1111. One end of the broken blades 1111 in the axial direction of the wind wheel main body 11 is connected to the connecting ribs 113. The plurality of broken blades 1111 are arranged adjacent to each other in the circumferential direction of the wind wheel main body 11. The number of broken blades 1111 is greater than or equal to one and less than or equal to three.

[0062] In this embodiment, a part of the blades 111 are formed into broken blades 1111 and are axially connected to the connecting ribs 113 on the wind wheel main body 11. The plurality of broken blades 1111 are arranged adjacent to each other in the circumferential direction of the wind wheel main body 11. The structure is simple, the arrangement is convenient and reasonable, and can well cooperate with the arrangement of the operation port 101, so that the wind wheel main body 11 can form a stable and good wind wheel structure.

[0063] In this embodiment, the number of broken blades 1111 is set to be greater than or equal to one and less than or equal to three, so that the size of the operation port 101 in the circumferential direction of the wind wheel main body 11 is limited within the span range between two to four blades 111. Thus, the operation port 101 can have a sufficient opening to facilitate the assembly or disassembly of the cross-flow wind wheel 10 and the drive motor, and the structure of the operation port 101 can maintain good structural strength, so that the overall opening of the operation port 101 is in a relatively small size. Therefore, the operation port 101 can stably and reliably meet the requirements of safety regulations testing. For example, the number of broken blades 1111 can be one, two or three, and the number of broken blades 1111 can be set accordingly according to the setting requirements of the operation port 101.

[0064] In some examples of the present utility model, as Figure 2 shown, on the side of the end plate 112 facing the broken blades 1111, cooperation ribs 1121 can be formed. The cooperation ribs 1121 extend along the circumferential direction of the wind wheel main body 11. The cooperation ribs 1121, the connecting ribs 113 and two blades 111 respectively connected to both ends of the connecting ribs 113 jointly cooperate to define the operation port 101.

[0065] In this embodiment, a mating rib 1121 is provided on one side of the end plate 112 facing the broken blade 1111. The mating rib 1121, together with the connecting rib 113 and the two blades 111 at both ends of the connecting rib 113, jointly define an operation opening 101. The structure is simple and can well meet the requirements that the operation opening 101 and the fixing holes of the fixing part 12 are arranged radially opposite along the wind wheel main body 11, as well as the requirement for the opening size of the operation opening 101 in the axial direction of the wind wheel main body 11, so that the arrangement of the operation opening 101 on the wind wheel main body 11 during processing and manufacturing can be more convenient and flexible.

[0066] In an embodiment of the present invention, referring to Figure 1 and Figure 2 as shown, the fixing part 12 can be arranged on the end plate 112. This can facilitate the installation and fixation of the fixing part 12, making it more convenient during the production and manufacturing of the cross-flow wind wheel 10.

[0067] In an embodiment of the present invention, the wind wheel main body 11 and the fixing part 12 can be integrally formed. This can make the overall structure of the fixing part 12 and the wind wheel main body 11 more compact and the connection more reliable, so that the driving motor can stably drive the cross-flow wind wheel 10 to rotate through the motor shaft in transmission connection with the fixing part 12, making the cross-flow wind wheel 10 operate more stably.

[0068] In an embodiment of the present invention, as Figure 1 shown, the cross-flow wind wheel 10 can further include an end shaft 14. The end shaft 14 is arranged at the second end of the wind wheel main body 11. The end shaft 14 extends along the axial direction of the wind wheel main body 11 and the axis of the end shaft 14 is collinear with the axis of the wind wheel main body 11.

[0069] Setting the end shaft 14 in this embodiment can facilitate the installation and arrangement of the cross-flow wind wheel 10 in the air conditioner 100. The end shaft 14 can cooperate with the motor shaft of the driving motor to form a rotating shaft during the operation of the cross-flow wind wheel 10, so that the cross-flow wind wheel 10 rotates stably under the drive of the motor shaft, thus meeting the operation requirements of the cross-flow wind wheel 10.

[0070] Next, refer to Figures 1 - 3 to describe the air conditioner 100 according to the second aspect embodiment of the present invention.

[0071] As Figures 1 - 3 shown, the air conditioner 100 according to the embodiment of the present invention includes the cross-flow wind wheel 10 according to the first aspect embodiment of the present invention.

[0072] Other components and operations of the air conditioner 100 according to the embodiment of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0073] According to the air conditioner 100 of the embodiment of the present utility model, by providing the cross-flow impeller 10 of the above-mentioned first aspect embodiment, and by setting the operation port 101 to include a first notch 1011 and a second notch 1012, the first notch 1011 and the second notch 1012 are axially connected along the impeller main body 11. In the circumferential direction of the impeller main body 11, the size of the first notch 1011 is smaller than that of the second notch 1012, so that the operation port 101 can form a reduced opening structure, and the opening of the operation port 101 is smaller, thereby well avoiding the experimental probe from contacting the motor shaft or the fixing part 12 during the safety standard test, meeting the safety standard requirements, and well avoiding adding a protective net or an insulating structure, making the production efficiency of the air conditioner 100 higher and the production cost lower.

[0074] Next, reference will be made to Figures 1 - 3 Describe the air conditioner 100 according to a specific embodiment of the present utility model.

[0075] As Figures 1 - 3 shown, the air conditioner 100 may include a housing, a cross-flow impeller 10, and a driving motor. The housing has an air outlet. The cross-flow impeller 10 and the driving motor are both arranged inside the housing. The cross-flow impeller 10 is arranged at the air outlet position, and the driving motor is arranged on one side of the axial direction of the cross-flow impeller 10.

[0076] The cross-flow impeller 10 includes an impeller main body 11, a fixing part 12, a fastener 13, and an end shaft 14. The impeller main body 11 may include a plurality of blades 111 and end plates 112. There may be two end plates 112, and the two end plates 112 are respectively arranged at both ends of the axial direction of the impeller main body 11. The plurality of blades 111 extend along the axial direction of the impeller main body 11 and are arranged at intervals in the circumferential direction of the impeller main body 11. The plurality of blades 111 and the end plates 112 cooperate to form a cavity.

[0077] The impeller main body 11 forms a first end and a second end at both ends in the axial direction. At the second end, the end shaft 14 extends along the axial direction of the impeller main body 11 and is fixed to the end plate 112. A dust-proof cover 20 may be sleeved on the outer peripheral surface of the end shaft 14. The driving motor is arranged on one side of the first end of the impeller main body 11. The end plate 112 may be provided with a fixing part 12. The fixing part 12 is an aluminum core assembly and is arranged in the cavity. The motor shaft may pass through the end plate 112 and cooperate with the fixing part 12. The fixing part 12 may be provided with a shaft hole for cooperating with the motor shaft. The fixing part 12 is provided with a fixing hole, and the fixing hole and the shaft hole may communicate with each other. The fixing hole may extend along the radial direction of the impeller main body 11. The fastener 13 may be a screw, and the fastener 13 is threadedly connected to the fixing hole. The fastener 13 may tightly connect the motor shaft and the fixing part 12.

[0078] The wind wheel main body 11 is provided with connecting ribs 113 and mating ribs 1121. The connecting ribs 113 extend along the circumferential direction of the wind wheel main body 11 and are respectively connected to two blades 111 at both ends. The mating ribs 1121 are arranged on the side of the end plate 112 facing the second section. The connecting ribs 113, the mating ribs 1121 and the two blades 111 cooperate to define an operation opening 101. Wherein, a part of the connecting ribs 113 protrudes towards the second end to form a first notch 1011, and another part of the connecting ribs 113 cooperates with the two blades 111 and the reinforcing ribs to form a second notch 1012. The connecting ribs 113 are connected to the two blades 111 on the side of the wind wheel main body 11 axially away from the operation opening 101. The two blades 111 axially connected to the connecting ribs 113 on the wind wheel main body 11 form broken blades 1111. The end plate 112 can be provided with a groove structure that cooperates with the operation opening 101 and the mating ribs 1121, which is convenient for the processing and manufacturing of the wind wheel main body 11 and the processing and forming of the operation opening 101.

[0079] The wind wheel main body 11 can also include a plurality of middle section plates 15. The plurality of middle section plates 15 can be arranged at intervals along the axial direction of the wind wheel main body 11 between the two end plates 112. The blades 111 of the wind wheel main body 11 can be arranged in a segmented structure along the axial direction of the wind wheel main body 11 in cooperation with the middle section plates 15 according to the layout requirements. The middle section plates 15 can be annular plates so that the wind wheel main body 11 forms a smooth cavity along the axial direction. The end plate 112, the fixing part 12, the plurality of blades 111 and the broken blades 1111 connected to the end plate 112 at the first end, and the fasteners 13 threadedly connected to the fixing holes in the wind wheel main body 11 can be formed by integral processing, making the structure of the operation opening 101 more stable. The wind wheel main body 11 can also be provided with balance sheets 16 according to needs to meet the operation requirements of the cross-flow wind wheel 10.

[0080] When the air conditioner 100 is assembled, the driving motor can be arranged in the housing first, and then the cross-flow wind wheel 10 is arranged in the housing and the motor shaft is connected to the fixing part 12 in cooperation. The cross-flow wind wheel 10 is well arranged in place through the end shaft 14 and the motor shaft. The assembler can use a screwdriver to extend from the air outlet into the operation opening 101 and then continue to extend to the fixing hole to tighten the fastener 13, so that the fastener 13 presses the motor shaft to make the motor shaft and the fixing part 12 reliably connected. Since the operation opening 101 is small, the screwdriver can be quickly and accurately mated with the fastener 13 after extending into the operation opening 101, which makes the installation and fixation of the cross-flow wind wheel 10 and the motor shaft relatively convenient to a certain extent. The positioning cooperation between the screwdriver and the fastener 13 is relatively fast, and when the cross-flow wind wheel 10 is in an eccentric installation state, it can be better disassembled and assembled quickly, which is convenient for the after-sales maintenance operation of the air conditioner 100.

[0081] When the air conditioner 100 is undergoing safety testing, due to the small opening of the operation port 101, the test probe cannot be inserted into the operation port 101, or the test probe is partially inserted into the operation port 101 but cannot penetrate further into the cavity under the restriction of the peripheral wall of the operation port 101, thus stably and reliably preventing the test probe from contacting the fixing part 12 or the motor shaft, and thus well meeting the safety requirements.

[0082] The safety requirements may refer to the international standards stipulated by the International Electrotechnical Commission. In this embodiment, by restricting the size of the operation port 101, the operation port 101 can fully meet the requirements of strict international standards, thereby avoiding adjusting and optimizing the structure of the air conditioner 100 and the driving motor structure, avoiding adding a protective net or changing and strengthening the insulation structure of the driving motor, thereby reducing the production cost of the air conditioner 100, improving the production efficiency, and avoiding the noise problem caused by adding a protective net and the impact on user selection, and avoiding the impact of increasing the external dimensions caused by changing and strengthening the insulation structure of the driving motor, so that the air conditioner 100 can better meet the user's usage needs and to a certain extent improve the user's usage experience.

[0083] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0084] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0085] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "attachment", "fixation", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0086] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0087] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A crossflow impeller, characterized in that: include: A wind wheel body and a fixing part, wherein the wind wheel body extends axially and has a cavity, the fixing part is arranged in the cavity, the fixing part is used to be fixed to the motor shaft of the driving motor, and the fixing part is provided with a fixing hole, wherein: The two axial ends of the wind wheel body are respectively a first end and a second end, the first end is provided with an operating port, the fixing hole is arranged opposite to the operating port in the radial direction of the wind wheel body, the operating port includes a first slot and a second slot connected along the axial direction of the wind wheel body, and in the circumferential direction of the wind wheel body, the size of the first slot is smaller than the size of the second slot.

2. The crossflow impeller according to claim 1, characterized in that: The first notch is connected to a side of the second notch facing the second end, and a maximum dimension of the first notch along the circumference of the wind wheel body is greater than or equal to 6.2 mm and less than or equal to 7.5 mm.

3. The crossflow impeller according to claim 1, characterized in that: The dimension of the second notch in the axial direction of the wind wheel body is greater than or equal to 7.5 mm and less than or equal to 8.6 mm.

4. The crossflow impeller according to claim 1, characterized in that: A side wall surface of the second notch facing the second end is formed as a first wall, and a distance between the first wall and an end surface of the first end is greater than or equal to 12.5 mm and less than or equal to 15 mm.

5. The crossflow impeller according to claim 1, characterized in that: A side wall surface of the first notch facing the second end is formed as a second wall, and a maximum distance between the second wall and an end surface of the first end is greater than or equal to 18.6 mm and less than or equal to 23 mm.

6. The crossflow impeller according to claim 1, characterized in that: In the axial direction of the wind wheel body, a side wall surface of the first slot facing the second end is a second wall, and the second wall is formed as an arc surface protruding toward the second end.

7. The crossflow impeller according to claim 1, characterized in that: The wind wheel body includes an end plate and a plurality of blades, wherein the plurality of blades extend along the axial direction and are arranged at intervals along the circumference of the wind wheel body, and the end plate is connected to the plurality of blades, wherein the wind wheel body is further provided with connecting ribs, wherein the connecting ribs extend along the circumference of the wind wheel body and are respectively connected to two blades at both ends, and the connecting ribs cooperate with the two blades and the end plate to define the operating port.

8. The crossflow impeller according to claim 7, characterized in that: Some of the multiple blades are formed as broken blades, and one end of the broken blades in the axial direction of the wind wheel body is connected to the connecting rib. The multiple broken blades are arranged adjacent to each other along the circumference of the wind wheel body, and the number of the broken blades is greater than or equal to one and less than or equal to three.

9. The crossflow impeller according to claim 8, characterized in that: A matching rib is formed on the side of the end plate facing the broken blade, and the matching rib extends along the circumference of the wind wheel body. The matching rib, the connecting rib and the two blades respectively connected to the two ends of the connecting rib cooperate to define the operation port.

10. An air conditioner, characterized in that: It comprises a crossflow wind wheel according to any one of claims 1-9.

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