Motor structure of radian blade

Abstract

The motor structure comprises an end cover, a connecting plate assembly and a transmission shaft, the end cover is arranged above an iron core set, the end cover is connected with the top end of the transmission shaft, fan blades on the end cover are in an arc shape, a powder metallurgy insert is arranged on the inner side of the end cover, a first bearing is connected to the transmission shaft, and a second bearing is arranged on the transmission shaft. And the first bearing is connected with a second bearing. According to the motor structure with the radian blades, the blades on the end cover adopt radian, compared with straight blades, the wind contact face is large, heat dissipation is better, meanwhile, the powder metallurgy insert is used for replacing an existing iron or aluminum end cover to make contact with a transmission shaft to avoid slipping at the connecting position, and therefore optimization of the device structure is achieved, and the service life of the device is prolonged. The first bearing and the second bearing are blocked through the bushing, so that one clamp spring groove of the transmission shaft is omitted, that is, one procedure for processing the transmission shaft is omitted, cost is saved, stress of the transmission shaft cannot be concentrated at one point due to the design of the bushing, and breakage of the transmission shaft due to stress concentration is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a motor structure of radian vane. BACKGROUND

[0002] Motor refers to the electromagnetic device that realizes electric energy conversion or transmission according to electromagnetic induction law, and through the search, it is found that the motor structure in the prior art is typical, such as the motor structure disclosed in publication No. CN113922525A, which comprises a motor stator core group structure and a rotor structure, the motor stator core group structure comprises a cylindrical core group with an inner hole at the shaft center, a plurality of pairs of motor winding holes, a plurality of cast fixing holes and a plurality of embedded fixing holes are uniformly distributed on the cylindrical core group in the circumferential direction, a first fan-shaped head core group for covering the motor winding is connected to one of the end faces of the cylindrical core group, and a second fan-shaped head core group covering the motor winding is connected to the other end face of the cylindrical core group; the rotor structure comprises a T-shaped rotor and an end rotor of a cylindrical structure. The single-stator motor has four pairs of interactive working surfaces, and the double-stator motor has eight pairs of interactive working surfaces. The two ends of each working surface of the stator and the rotor are also provided with a magnetic separation area. The main feature is to reduce magnetic hysteresis interference and loss, realize high torque and high power generation, reduce heat generation and loss, improve motor efficiency, and be suitable for popularization and use in various suitable fields.

[0003] In summary, the existing motor structure has straight vanes on the end cover, the wind contact area is small, and the contact between the end cover and the transmission shaft is prone to slipping due to material reasons. In view of the above problems, the existing equipment needs to be improved. INVENTION CONTENTS

[0004] The utility model aims at providing a motor structure with radian vanes to solve the problem of straight vanes on the end cover of the existing motor structure, small wind contact area and easy slipping at the end cover.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a motor structure with radian vanes, comprising an end cover and a connecting plate assembly, a transmission shaft,

[0006] The end cover is arranged above the core group, and the end cover is connected to the top end of the transmission shaft, the fan blades on the end cover are in the shape of a circular arc, and a powder metallurgy insert is arranged on the inner side of the end cover, a first bearing is connected to the transmission shaft, a second bearing is connected to the first bearing, the second bearing is arranged in the inner part of the bracket, and a glue groove is formed in the bracket, and a bushing and a connecting plate assembly are connected to the bottom of the bracket.

[0007] Preferably, a powder metallurgy insert is arranged in the center hole of the end cover, and the powder metallurgy insert is in contact with the transmission shaft.

[0008] Preferably, the iron core group is arranged inside the shell, and the outer side of the iron core group is distributed with sintered Nd-Fe-B in a ring array.

[0009] Preferably, the second bearing is arranged inside the bushing, and the bushing is arranged below the support.

[0010] Preferably, the support is screwed with the connecting plate assembly, and the screws are symmetrically arranged in two groups.

[0011] Preferably, the connecting plate assembly comprises a plate body, a controller three-phase line hole, a motor three-phase line hole and a screw hole, the controller three-phase line hole and the motor three-phase line hole are arranged on the plate body, and the controller three-phase line hole and the motor three-phase line hole are arranged inside the two groups of screw holes.

[0012] Preferably, the screws are arranged inside the screw holes, and the screw holes are symmetrically arranged on the plate body.

[0013] Preferably, the controller three-phase line hole and the motor three-phase line hole are each provided with three groups, and the controller three-phase line hole and the motor three-phase line hole are oppositely arranged.

[0014] Compared with the prior art, the motor structure with the arc blades has the advantages that

[0015] (1) The end cover and the powder metallurgy insert are used in cooperation to effectively solve the problems that the straight blade wind contact surface is small, and the end cover and the transmission shaft are prone to slip due to material quality at the contact position. The blades on the end cover adopt an arc shape, and the wind contact surface is larger than that of the straight blade, and the heat dissipation is better. The powder metallurgy insert is used to replace the existing end cover and transmission shaft made of iron or aluminum to avoid slip at the connection, so that the structure of the device is optimized.

[0016] (2) The rubber groove and the bushing are used in cooperation to effectively solve the problem that the existing bearing is blocked by the snap spring, thereby the shaft is prone to breakage. The first bearing and the second bearing are blocked by the bushing, so that the transmission shaft has one less snap spring groove, that is, the transmission shaft has one less machining process, thereby saving cost. The design of the bushing makes the stress of the transmission shaft unable to concentrate at one point, thereby avoiding the breakage of the transmission shaft due to stress concentration. The rubber groove on the support can effectively prevent the glue from being squeezed out when the iron core group is pressed, and the rationality of the structure of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall explosion diagram of the utility model;

[0018] Figure 2 It is an isometric view of the utility model;

[0019] Figure 3The isometric side view of the utility model;

[0020] Figure 4 The utility model discloses a connecting plate assembly overhead structure schematic diagram.

[0021] In the drawing: 1, end cover, 2, machine shell, 3, iron core group, 4, sintered neodymium iron boron, 5, first bearing, 6, second bearing, 7, screw, 8, support, 9, connecting plate assembly, 901, plate body, 902, controller three-phase line hole, 903, motor three-phase line hole, 904, screw hole, 10, bushing, 11, glue groove, 12, transmission shaft. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides a kind of technical solutions: a motor structure of radian blade, embodiment one

[0024] As Figure 1 , Figure 2 And Figure 3 As shown in the drawing, end cover 1 is arranged above iron core group 3, and end cover 1 is connected with the top of transmission shaft 12, the fan blade on end cover 1 is circular arc, and powder metallurgy insert is arranged in the inner side of end cover 1, first bearing 5 is connected on transmission shaft 12, and second bearing 6 is connected on first bearing 5, second bearing 6 is arranged in the inside of support 8, and glue groove 11 is formed in support 8, and bushing 10 and connecting plate assembly 9 are connected to the bottom of support 8.

[0025] In further embodiments, powder metallurgy insert is arranged in the center hole of end cover 1, and powder metallurgy insert is connected with transmission shaft 12.

[0026] In further embodiments, iron core group 3 is arranged in the inside of machine shell 2, and sintered neodymium iron boron 4 is distributed in annular array on the outside of iron core group 3.

[0027] In further embodiments, second bearing 6 is arranged in the inside of bushing 10, and bushing 10 is arranged below support 8.

[0028] In further embodiments, support 8 is screw-connected with connecting plate assembly 9 by screw 7, and screw 7 is symmetrically arranged with two groups.

[0029] Specifically, in this device, the rotor is the rotor core and drive shaft 12 in the core assembly 3, the stator is the stator core in the core assembly 3 and the coil windings wound on the stator core, and the permanent magnet is sintered neodymium iron boron 4. The driving principle between the stator, rotor and permanent magnet is existing technology and will not be described in detail here. The powder metallurgy insert plays a role in preventing slippage, and the glue groove 11 can effectively prevent glue from being squeezed out when pressing the core assembly 3, thereby improving the rationality of the device structure. In the actual working process, the drive shaft 12 drives the end cover 1 to rotate the arc blades to achieve heat dissipation.

[0030] Example 2

[0031] This embodiment is a further description of the above embodiments. It should be understood that this embodiment includes all the aforementioned technical features and is further described in detail.

[0032] like Figure 2 and Figure 4 As shown, in a further embodiment, the connecting plate assembly 9 includes a plate body 901, a controller three-phase wire connection hole 902, a motor three-phase wire connection hole 903, and screw holes 904. The plate body 901 is provided with the controller three-phase wire connection hole 902 and the motor three-phase wire connection hole 903, and the controller three-phase wire connection hole 902 and the motor three-phase wire connection hole 903 are disposed inside the two sets of screw holes 904.

[0033] In a further embodiment, the screw 7 is disposed through the interior of the screw hole 904, and the screw hole 904 is symmetrically disposed on the plate 901.

[0034] In a further embodiment, three sets of controller three-phase wire connection holes 902 and motor three-phase wire connection holes 903 are provided, and the controller three-phase wire connection holes 902 and motor three-phase wire connection holes 903 are arranged opposite to each other.

[0035] Specifically, the motor three-phase wires and the controller three-phase wires are connected to external equipment through the motor three-phase wire connector 903 and the motor three-phase wire connector 903, thereby avoiding the problem of wire breakage when the enameled wire and silicone wire are connected, thus improving assembly production efficiency, increasing production line cycle time, and saving three copper terminals.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A motor structure with curved blades, comprising an end cover (1), a connecting plate assembly (9), and a drive shaft (12), characterized in that: The end cap (1) is located above the iron core assembly (3) and is connected to the top of the drive shaft (12). The fan blades on the end cap (1) are arc-shaped and powder metallurgy inserts are provided on the inner side of the end cap (1). A first bearing (5) is connected to the drive shaft (12) and a second bearing (6) is connected to the first bearing (5). The second bearing (6) is located inside the bracket (8) and a glue groove (11) is provided on the bracket (8). At the same time, a bushing (10) and a connecting plate assembly (9) are connected to the bottom of the bracket (8).

2. The motor structure with curved blades according to claim 1, characterized in that: A powder metallurgical insert is provided in the central circular hole of the end cap (1), and the powder metallurgical insert is in contact with the drive shaft (12).

3. The motor structure with curved blades according to claim 1, characterized in that: The core assembly (3) is located inside the housing (2), and sintered NdFeB (4) is distributed in a ring array on the outer side of the core assembly (3).

4. The motor structure with curved blades according to claim 1, characterized in that: The second bearing (6) is disposed inside the bushing (10), and the bushing (10) is disposed below the bracket (8).

5. The motor structure with curved blades according to claim 4, characterized in that: The bracket (8) is threadedly connected to the connecting plate assembly (9) by screws (7), and two sets of screws (7) are symmetrically arranged.

6. The motor structure with curved blades according to claim 1, characterized in that: The connecting plate assembly (9) includes a plate body (901), a controller three-phase wire connection hole (902), a motor three-phase wire connection hole (903), and screw holes (904). The plate body (901) is provided with the controller three-phase wire connection hole (902) and the motor three-phase wire connection hole (903). At the same time, the controller three-phase wire connection hole (902) and the motor three-phase wire connection hole (903) are located inside the two sets of screw holes (904).

7. The motor structure with curved blades according to claim 5, characterized in that: The screw (7) is disposed through the inside of the screw hole (904), and the screw hole (904) is symmetrically disposed on the plate (901).

8. The motor structure with curved blades according to claim 6, characterized in that: The controller three-phase wire connection hole (902) and the motor three-phase wire connection hole (903) are each provided with three sets, and the controller three-phase wire connection hole (902) and the motor three-phase wire connection hole (903) are arranged opposite to each other.

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