Motor three-phase line outgoing structure of axial flow fan

Abstract

The utility model relates to a motor three-phase line outgoing structure of an axial flow fan, which comprises a lower shell and an upper shell which are connected with each other, and a motor is arranged in the lower shell; three first copper bars are evenly installed on the upper shell, first welding holes in the tops of the first copper bars are connected with an external cable, and the bottoms of the first copper bars penetrate through a first support located in the upper shell and then are connected with the left side of a second copper bar installed in the first support. A second welding hole in the right side of the second copper rod is connected with a motor three-phase line of the motor, and the right side of the second copper rod is installed in a second support located in the lower shell. According to the utility model, through the structural arrangement of the copper rod and the bracket and the adoption of a rigid supporting structure, the bending deformation of a traditional flexible wire in a narrow space is avoided, and the installation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of axial flow fans, and in particular to a three-phase wire output structure for the motor of an axial flow fan. Background Technology

[0002] Axial flow fans are widely used; they are a type of fan where the airflow direction is the same as the axis of the fan blades. Examples include electric fans and air conditioner outdoor unit fans. Axial flow fans are typically used in applications requiring high flow rates but low pressure. An axial flow fan is fixed in position and moves air.

[0003] A search revealed Chinese Patent Publication No. CN216312842U, which discloses a compact motor cable connector structure, including a housing; the housing is fixed to one side of a fixing plate; a boss is fixed to the other side of the fixing plate; multiple sets of first wiring ports are installed inside the housing, and the wiring terminals include first and second sockets, which are connected by connecting ribs; the connecting ribs of adjacent sets of first wiring ports are parallel to each other; the boss has multiple sets of second wiring ports, the number of which is the same as the number of first wiring ports, and the positions of the second wiring ports are the same as those of the first wiring ports; one end of a first wire is inserted into the second wiring port, and the other end of the first wire is provided with a first crimp terminal. This utility model has a compact structure, saves space, and does not affect the spatial layout design of the motor.

[0004] Existing axial flow fan motors typically use flexible cables that pass directly through the fan casing for wiring. However, due to the confined space and complex layout inside the fan, the flexible cables are prone to bending, jamming, or damage during the wiring process, affecting installation efficiency and electrical reliability. Furthermore, flexible cables pose durability risks under long-term vibration, making them susceptible to electrical faults. Therefore, a novel motor wiring structure is urgently needed to improve installation convenience and electrical safety.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a three-phase output structure for the motor of an axial flow fan, making it more valuable for industrial applications. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a three-phase wire output structure for the motor of an axial flow fan.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A three-phase wire output structure for an axial flow fan motor includes a lower housing and an upper housing connected together, with the motor installed inside the lower housing;

[0009] Three first copper rods are evenly installed on the upper housing. The first welding hole at the top of the first copper rod is connected to the external cable. The bottom of the first copper rod passes through the first bracket located inside the upper housing and then connects to the left side of the second copper rod installed inside the first bracket. The second welding hole on the right side of the second copper rod is connected to the three-phase wire of the motor. The right side of the second copper rod is installed in the second bracket located inside the lower housing.

[0010] As a further improvement of this utility model, the first bracket is installed on the left side of the first bracket mounting groove in the upper housing along the left-right direction. A first bracket lateral slot is provided on the side of the first bracket, and a first bracket transverse slot is provided on the right side of the first bracket. The first copper rod quick-connect structure at the bottom of the first copper rod passes through the first copper rod through hole provided on the upper housing and is then installed together with the second copper rod lateral slot located on the left side of the second copper rod. The right side of the second copper rod is installed in the second bracket slot inside the second bracket.

[0011] As a further improvement of this utility model, the first copper rod quick-insertion structure includes several locking teeth, all of which are pressed and installed in the lateral slot of the second copper rod.

[0012] As a further improvement of this utility model, a flared transition portion is provided on the right side of the transverse slot of the first bracket.

[0013] As a further improvement of this utility model, the right side of the second copper rod is snapped into the second bracket slot of the second bracket, and the three-phase wires of the motor pass through the three-phase wire through hole on the right side of the second bracket of the second bracket slot and then connect with the second welding hole on the right side of the second copper rod.

[0014] As a further improvement of this utility model, the first bracket is snapped into the left side of the first bracket mounting slot, and the second bracket is installed in the lower housing on the left side of the motor.

[0015] As a further improvement of this utility model, insulating sleeves are installed between the first copper rod and the upper shell, and between the second copper rod and the second bracket.

[0016] As a further improvement of this utility model, both the first bracket and the second bracket are insulated rigid structures.

[0017] As a further improvement of this utility model, both the first copper rod and the second copper rod are tin-plated copper structures.

[0018] By means of the above solution, this utility model has at least the following advantages:

[0019] This utility model adopts a rigid support structure through the structural design of copper rods and brackets, which avoids the bending and deformation of traditional flexible wires in confined spaces and improves the ease of installation.

[0020] The right-angle cable exit structure of this invention optimizes the spatial layout and is particularly suitable for cable routing inside the cramped space of a fan.

[0021] This utility model, through the structural design of copper rods and supports, standardizes the copper rods and connecting structures, facilitating later maintenance and replacement, thereby improving reliability and maintainability.

[0022] This invention, through the structural design of copper rods and brackets, ensures electrical safety and reduces the risk of electric shock and short circuits.

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the three-phase wire output structure of the motor of an axial flow fan according to the present invention;

[0026] Figure 2 yes Figure 1 The left view;

[0027] Figure 3 yes Figure 1 A structural diagram of the other side;

[0028] Figure 4 yes Figure 1 Internal structure diagram;

[0029] Figure 5 yes Figure 4 A schematic diagram of the internal structure of the installation points for the external cables, the first copper rod, the first bracket, and the second copper rod;

[0030] Figure 6 yes Figure 1 A schematic diagram of the structure after removing the upper shell.

[0031] The meanings of the labels in the figures are as follows.

[0032] 1. Lower housing; 2. Upper housing; 3. External cable; 4. First copper rod; 5. First bracket mounting slot; 6. First bracket; 7. Motor; 8. First copper rod through hole; 9. Second copper rod; 10. Second bracket; 11. Motor three-phase wire; 12. Second bracket slot; 13. First bracket side slot; 14. Second copper rod side slot; 15. First copper rod quick-connect structure; 16. First bracket transverse slot; 17. Second welding hole; 18. Detailed Implementation

[0033] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] like Figures 1-6 As shown,

[0036] The first embodiment of this utility model:

[0037] The purpose of this embodiment is to provide a three-phase wire output structure for the motor of an axial flow fan. Through rigid support and quick-connection, the three-phase wires can be reliably led out, overcoming the difficulties in wire pulling and electrical hazards in the prior art.

[0038] like Figure 1 and Figure 3 A three-phase line output structure for an axial flow fan motor includes a lower housing 1 and an upper housing 2, which are connected together by several bolts. A motor 7 is installed inside the lower housing 1, and three external cables 3 are respectively connected to the three-phase lines 11 on the motor 7.

[0039] Specifically, the connection structure between external cable 3 and motor three-phase wire 11:

[0040] 1. Three first copper rods 4: Their tops are provided with radially extending first welding holes 13 for welding to external cables 3; their bottoms are provided with quick-connect structures (i.e., first copper rod quick-connect structure 16), which can pass through the first bracket side slot 14 of the first bracket 6 and then be inserted into the second copper rod side slot 15 on the left side of the second copper rod 9. For example... Figure 2 and Figure 4 As shown.

[0041] like Figure 5 The first copper rod quick-connect structure 16 includes several locking teeth, which can be compressed and deformed to facilitate a more secure insertion into the second copper rod side slot 15. When the first copper rod 4 needs to be installed into the second copper rod 9 within the first bracket 6, all the locking teeth are compressed and installed into the second copper rod side slot 15, which can improve the installation stability between the two.

[0042] In addition, this quick-connect structure provides a better foolproof design during installation, preventing misalignment during insertion.

[0043] 2. Three second copper rods 9: These are respectively inserted into the second bracket slots 12 of the second bracket 10, with one end welded to the three-phase motor wires 11, and the other end extending axially and inserted into the first bracket 6. (Example:) Figure 4 and Figure 5 As shown.

[0044] The first copper rod 4 and the second copper rod 9 mentioned above are both made of tin-plated copper.

[0045] In addition, insulating sleeves are installed between the first copper rod 4 and the upper shell 2, and between the second copper rod 9 and the second bracket 10, which can further ensure their insulation performance.

[0046] 3. First bracket 6: Made of insulating rigid material, one first bracket 6 corresponds to the inner side of the upper shell 2 of each first copper rod 4. The first bracket 6 is installed on the left side of the first bracket mounting groove 5 on the upper shell 2, and can be installed by snap-fit, bolt or adhesive. The first bracket 6 is made of insulating rigid material and is set at the corner of the upper shell 2 to further support and insulate the second copper rod 9.

[0047] A flared transition section is provided on the right side of the first bracket's horizontal slot 17 to facilitate the installation of the second copper rod 9 on the left side. Figure 5 As shown.

[0048] 4. Second bracket 10: Made of insulating rigid material, it is installed in the lower housing 1 on the left side of the motor 7 by several screws. It supports the right side of the motor's three-phase wires 11 and the second copper rod 9, facilitating the connection between the second copper rod 9 and the motor's three-phase wires 11. Figure 6 As shown.

[0049] Specifically, the right side of the second copper rod 9 is inserted into the second bracket slot 12 of the second bracket 10, and the motor three-phase wire 11 passes through the three-phase wire through hole on the right side of the second bracket 10 of the second bracket slot 12 and is then connected to the second welding hole 18 on the right side of the second copper rod 9.

[0050] In this embodiment, the combination of the first copper rod and the second copper rod changes the motor output wire from axial to radial, making it easier to pass through the housing; at the same time, the two supports improve the rigidity and insulation performance of the overall structure, significantly improving the product's installability and reliability.

[0051] In this embodiment, the three-phase wires of the motor are driven out through two insulating supports by rigid conductors, which makes the structure stable and easy to install. At the same time, it improves the vibration resistance and insulation performance, and significantly improves the overall reliability and service life of the axial flow fan.

[0052] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0053] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A three-phase line output structure for an axial flow fan motor, comprising a lower housing (1) and an upper housing (2) connected together, wherein a motor (7) is installed in the lower housing (1); Its features are: Three first copper rods (4) are evenly installed on the upper housing (2). The first welding hole (13) at the top of the first copper rod (4) is connected to the external cable (3). The bottom of the first copper rod (4) passes through the first bracket (6) located in the upper housing (2) and then connects to the left side of the second copper rod (9) installed in the first bracket (6). The second welding hole (18) on the right side of the second copper rod (9) is connected to the motor three-phase line (11) of the motor (7). The right side of the second copper rod (9) is installed in the second bracket (10) located in the lower housing (1).

2. The three-phase wiring structure of the motor of an axial flow fan as described in claim 1, characterized in that, The first bracket (6) is installed on the left side of the first bracket mounting groove (5) in the upper housing (2) along the left-right direction. A first bracket side slot (14) is provided on the side of the first bracket (6), and a first bracket transverse slot (17) is provided on the right side of the first bracket (6). The first copper rod quick-connect structure (16) at the bottom of the first copper rod (4) passes through the first copper rod through hole (8) provided on the upper housing (2) and is then installed together with the second copper rod side slot (15) located on the left side of the second copper rod (9). The right side of the second copper rod (9) is installed in the second bracket slot (12) in the second bracket (10).

3. The three-phase wiring structure of the motor of an axial flow fan as described in claim 2, characterized in that, The first copper rod quick-connect structure (16) includes several locking teeth, all of which are pressed and installed in the second copper rod side slot (15).

4. The three-phase wiring structure for the motor of an axial flow fan as described in claim 2, characterized in that, A flared transition section is provided on the right side of the first bracket transverse slot (17).

5. The three-phase wiring structure for the motor of an axial flow fan as described in claim 2, characterized in that, The right side of the second copper rod (9) is inserted into the second bracket slot (12) of the second bracket (10). The motor three-phase wire (11) passes through the three-phase wire through hole on the right side of the second bracket (10) of the second bracket slot (12) and then connects to the second welding hole (18) on the right side of the second copper rod (9).

6. The three-phase wiring structure for the motor of an axial flow fan as described in claim 2, characterized in that, The first bracket (6) is snapped into the left side of the first bracket mounting slot (5), and the second bracket (10) is installed in the lower housing (1) on the left side of the motor (7).

7. The three-phase wiring structure for the motor of an axial flow fan as described in claim 1, characterized in that, Insulating sleeves are installed between the first copper rod (4) and the upper shell (2), and between the second copper rod (9) and the second bracket (10).

8. The three-phase wiring structure for the motor of an axial flow fan as described in claim 1, characterized in that, Both the first support (6) and the second support (10) are insulated rigid structures.

9. The three-phase wiring structure for the motor of an axial flow fan as described in claim 1, characterized in that, Both the first copper rod (4) and the second copper rod (9) are tin-plated copper structures.

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