Control box and BLDC motor capable of motor hoisting or vertical installation

Abstract

The application discloses a control box capable of realizing motor hoisting or vertical installation and a BLDC motor. The control box comprises a sleeve part and a bottom plate. The sleeve part and the bottom plate are mutually surrounded to form a cavity. The sleeve part is provided with a first stop opening and a second stop opening at two ends respectively. A first through hole is formed on the bottom plate and is communicated with the cavity. The bottom plate of the control box can be directed towards the motor and installed on the motor or the opening of the control box can be directed towards the motor and installed on the motor. The first through hole is formed on the bottom plate. When the bottom plate is directed towards the motor and installed on the motor, the electric wire can be introduced into the cavity and electrically connected with the circuit board in the cavity. The control box is provided with the first stop opening and the second stop opening, so that the two ends of the control box can be positioned and installed on the motor. The universality of the control box is enhanced. The production of motors with different installation modes can be realized by only developing two different molds, the production cost of the motor is effectively reduced, and the enterprise competitiveness is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a control box capable of realizing motor hoisting or vertical installation and a BLDC motor. BACKGROUND

[0002] At present, an inner rotor drum motor is generally installed on a load in a hoisting or vertical installation mode. The hoisting or vertical installation mode of the existing motor is an independent mode, that is, the same motor cannot exist in the hoisting and vertical installation modes at the same time, the hoisting and vertical installation modes are not directly related and are two independent individuals, and the hoisting and vertical installation modes cannot be interchanged. If the same motor structure can realize the hoisting and vertical installation modes, the cost can be greatly reduced, the universality of the motor can be improved, and market demand can be met. Therefore, it is very necessary to design a motor structure capable of realizing the coexistence of the hoisting and vertical installation modes.

[0003] The existing motor comprises a motor body and a motor controller installed at one end of the motor body. The hoisting or vertical installation mode of the motor is affected by the structure of the motor controller. In the motor controller, the shape of a control box has the greatest influence on the hoisting or vertical installation mode of the motor. Due to the independence of the hoisting or vertical installation mode, the shapes of the control boxes used in the two installation modes are different, and different end covers need to be matched. This makes it necessary to develop four sets of molds for producing two control boxes with different shape structures and the end covers matched with the control boxes in order to produce motors with different installation modes. Due to the low universality of the control box, four different molds need to be developed, which increases the cost of motor production and reduces the competitiveness of enterprises. SUMMARY

[0004] The application aims to provide a control box capable of realizing motor hoisting or vertical installation and a BLDC motor, and solve the technical problem in the prior art that the low universality of the control box requires the development of four different molds for the production of motors with different installation modes, thereby increasing the production cost of the motor and reducing the competitiveness of enterprises.

[0005] The application is achieved by the following technical scheme.

[0006] The first object of the application is to provide a control box capable of realizing motor hoisting or vertical installation, which comprises a sleeve part and a bottom plate arranged at the bottom end of the sleeve part. The top end of the sleeve part forms an opening. The sleeve part and the bottom plate surround a cavity. The opening is in communication with the cavity. First and second stop openings are arranged at the two ends of the sleeve part respectively. The first stop opening is located at the side of the opening, and the second stop opening is located at the side of the bottom plate. A first through hole is formed in the bottom plate and is in communication with the cavity. The bottom plate of the control box can be arranged on the motor, or the opening of the control box can be arranged on the motor.

[0007] Preferably, a plurality of first mounting holes are arranged on the bottom plate in a circumferential direction.

[0008] Preferably, a boss is arranged on the inner end surface of the bottom plate, and the first through hole penetrates the boss; a plurality of mounting posts are arranged on the inner end surface of the bottom plate, and the plurality of mounting posts are arranged in one-to-one correspondence with the plurality of first mounting holes, and the first mounting holes penetrate the mounting posts.

[0009] Preferably, a drainage groove is arranged on the outer surface of the sleeve part, and a clamping groove for mounting a wire cover is arranged on the sleeve part.

[0010] Preferably, a first mounting groove for attaching a label or a nameplate is arranged on the outer end surface of the bottom plate.

[0011] A second object of the present application is to provide a BLDC motor, comprising a motor body and a motor controller, the motor body comprising a casing, a stator assembly, a rotor assembly, a rotating shaft, a front end cover and a rear end cover; the motor controller comprising a control box and a circuit board, the front end cover and the rear end cover are respectively installed at both ends of the casing through first bolts, the stator assembly is installed in the casing, a first bearing seat is arranged on the end surface of the rear end cover facing the casing, and a first bearing chamber is arranged in the first bearing seat; a second bearing seat is arranged on the end surface of the front end cover facing the casing, a second bearing chamber is arranged in the second bearing seat, and bearings are installed in the first bearing chamber and the second bearing chamber, the rotor assembly is sleeved on the rotating shaft, the rotating shaft supports the bearings, the rotor assembly is sleeved in the stator assembly, the circuit board is installed in the control box, the control box is installed on the rear end cover through a locking device, the control box is a control box capable of achieving motor suspension or vertical installation as described above, the opening of the control box faces the direction of the rear end cover, the rear end cover is sleeved on the first stop, a wire passing hole is arranged on the rear end cover, the coil winding on the stator assembly passes through a plurality of wires through the wire passing hole and enters the cavity of the control box to be electrically connected with the circuit board; a plurality of first threaded holes are arranged on the rear end cover, the locking device comprises a screw rod and a nut, one end of the screw rod penetrates the first mounting hole of the control box and is screwed into the first threaded hole, the other end of the screw rod protrudes from the bottom plate of the control box and is threadedly connected with the nut, so that the control box and the rear end cover are locked together and a suspended motor is formed.

[0012] Preferably, a plurality of mounting bosses are arranged on the end surface of the rear end cover facing the casing, a plurality of second threaded holes are arranged on the mounting bosses, a plurality of second mounting holes are arranged on the front end cover, the threaded end of the first bolt passes through the second mounting hole and is threadedly connected with the second threaded hole, so that the rear end cover, the front end cover and the casing are locked together.

[0013] The third object of the present application is to provide a BLDC motor, comprising a motor body and a motor controller, the motor body comprising a casing, a stator assembly, a rotor assembly, a rotating shaft, a front end cover and a rear end cover; the motor controller comprising a control box and a circuit board, the front end cover and the rear end cover being respectively installed at both ends of the casing through first bolts, the stator assembly being installed in the casing, a first bearing seat being protrusively arranged on an end surface of the rear end cover facing the casing, a first bearing chamber being formed in the first bearing seat; a second bearing seat being protrusively arranged on an end surface of the front end cover facing the casing, a second bearing chamber being formed in the second bearing seat, and bearings being installed in both the first bearing chamber and the second bearing chamber, the rotor assembly being sleeved on the rotating shaft, the rotating shaft being supported on the bearings, the rotor assembly being sleeved in the stator assembly, the circuit board being installed in the control box, the control box being installed on the rear end cover through locking devices, the control box being the control box capable of achieving motor hoisting or vertical installation as described above, the bottom plate of the control box facing the rear end cover, the rear end cover being sleeved on the second stopper, a wire passing hole being arranged on the rear end cover, the wire passing hole being arranged corresponding to the first through hole of the control box, so that the coil winding on the stator assembly passes through the wire passing hole and the first through hole and enters the cavity of the control box to be electrically connected with the circuit board; a cover plate being installed at the opening position of the control box, a plurality of third mounting holes being formed in the cover plate, a plurality of first threaded holes being arranged on the rear end cover, the threaded end portions of the second bolts passing through the third mounting holes and the first mounting holes in sequence and being threadedly connected with the first threaded holes, so that the control box and the rear end cover are locked together and a vertical motor is formed.

[0014] Preferably, a plurality of mounting protruding columns are protrusively arranged on the end surface of the rear end cover facing the casing, second threaded holes being formed in the mounting protruding columns, a plurality of second mounting holes being formed in the front end cover, the threaded end portions of the first bolts passing through the second mounting holes and being threadedly connected with the second threaded holes, so that the rear end cover, the front end cover and the casing are locked together.

[0015] Preferably, a second mounting groove for attaching a label or a nameplate is formed in the top surface of the cover plate.

[0016] Compared with the prior art, the present application has the following effects:

[0017] 1)A control box capable of motor hoisting or vertical installation, comprising a sleeve part and a bottom plate arranged at the bottom end of the sleeve part, the top end of the sleeve part forms an opening, the sleeve part and the bottom plate form a cavity, the opening is communicated with the cavity, the first stop and the second stop are arranged at both ends of the sleeve part respectively, the first stop is located at one side of the opening, the second stop is located at one side of the bottom plate, and the first through hole is arranged on the bottom plate, which is communicated with the cavity, so that the bottom plate of the control box can be installed on the motor or the opening of the control box can be installed on the motor, and the first through hole is arranged on the bottom plate, so that when the bottom plate of the control box is installed on the motor, the wire can be introduced into the cavity and electrically connected with the circuit board in the cavity, and the control box is provided with the first stop and the second stop, so that the two ends of the control box can be positioned and installed with the motor, through the above structure, the versatility of the control box is enhanced, the control box can be installed on the motor in positive or reverse direction, so as to realize the hoisting or vertical installation of the motor, only two different molds (used for producing the control box and the end cover matched with it) are needed to realize the production of motors with different installation modes, so that the design meets the value demand of motor market developers, and can effectively reduce the production cost of the motor and improve the competitiveness of enterprises.

[0018] 2)The other advantages of the present application are described in detail in the embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a three-dimensional structural schematic diagram of the control box provided for embodiment one of the present application;

[0020] Figure 2 is another three-dimensional structural schematic diagram of the control box provided for embodiment one of the present application;

[0021] Figure 3 is another three-dimensional structural schematic diagram of the control box provided for Figure 1 ;

[0022] Figure 4 is a three-dimensional structural schematic diagram of the motor provided for embodiment two of the present application;

[0023] Figure 5 is an exploded structural schematic diagram of the motor provided for embodiment two of the present application;

[0024] Figure 6 is another exploded structural schematic diagram of the motor provided for embodiment two of the present application;

[0025] Figure 7 is an internal structural schematic diagram of the motor provided for embodiment two of the present application;

[0026] Figure 8 is a three-dimensional structural schematic diagram of the motor provided for embodiment three of the present application;

[0027] Figure 9 This is an exploded view of the motor provided in Embodiment 3 of the present invention;

[0028] Figure 10 This is an exploded structural diagram of the motor provided in Embodiment 3 of the present invention from another angle;

[0029] Figure 11 This is a schematic diagram of the internal structure of the motor provided in Embodiment 3 of the present invention. Detailed implementation method:

[0030] The present invention will now be described in further detail through specific embodiments and in conjunction with the accompanying drawings.

[0031] Example 1:

[0032] like Figures 1 to 3 As shown, this embodiment provides a control box that enables motor hoisting or vertical mounting. It includes a sleeve portion 1 and a base plate 2 located at the bottom of the sleeve portion 1. An opening 11 is formed at the top of the sleeve portion 1. The sleeve portion 1 and the base plate 2 together form a cavity 3, with the opening 11 communicating with the cavity 3. A first stop 12 and a second stop 13 are respectively provided at both ends of the sleeve portion 1. The first stop 12 is located on one side of the opening 11, and the second stop 13 is located on one side of the base plate 2. A first through hole 21 is provided on the base plate 2, communicating with the cavity 3. This allows the base plate 2 of the control box 9 to face the motor direction and be mounted on the motor, or the opening 11 of the control box 9 to face the motor direction and be mounted on the motor. The base plate 2 has... The first through hole 21 allows the control box 9 to be installed on the motor with its base plate 2 facing the motor direction. It also allows wires to be introduced into the cavity 3 and electrically connected to the circuit board 10 inside the cavity 3. The control box 9 is equipped with a first stop 12 and a second stop 13, allowing both ends of the control box 9 to be positioned and installed on the motor. This structure enhances the versatility of the control box 9, enabling it to be installed on the motor either upright or in reverse, thus facilitating either hoisting or vertical mounting of the motor. Only two different sets of molds (for producing the control box 9 and its matching end caps) need to be developed to produce motors with different installation methods. This design caters to the value-added needs of motor market developers and effectively reduces motor production costs, thereby improving enterprise competitiveness.

[0033] The control box 9 is provided with a number of first mounting holes 24 that are evenly spaced around the circumference. Preferably, there are four first mounting holes 24. The design is reasonable so that the control box 9 is subjected to uniform force during installation, making the installation more secure.

[0034] A boss 22 is protruded on the inner end surface of the bottom plate 2, the first through hole 21 penetrates the boss 22, the boss 22 forms a wire passing channel with a wall thickness of 0.5-1mm, which can protect the outer paint of the wire and prevent the outer paint of the wire from being damaged by rubbing against the edge of the first through hole 21; a plurality of mounting columns 23 are protruded on the inner end surface of the bottom plate 2, the plurality of mounting columns 23 are arranged one by one corresponding to the plurality of first mounting holes 24, and the first mounting hole 24 penetrates the mounting column 23, so that the control box 9 is more convenient and stable to install.

[0035] A drain groove 14 is opened on the outer surface of the sleeve part 1, which facilitates the outflow of water accumulated on the control box 9, and a clamping groove 15 for installing the wire protection sleeve 100 is opened on the sleeve part 1.

[0036] A first mounting groove 25 for attaching a label or a nameplate is opened on the outer end surface of the bottom plate 2, which is reasonably designed and facilitates identification sticking.

[0037] Embodiment two:

[0038] As shown in Figures 4 to 7 , the embodiment provides a BLDC motor, which comprises a motor body and a motor controller. The motor body comprises a casing 4, a stator assembly 5, a rotor assembly 6, a rotating shaft 70, a front end cover 7 and a rear end cover 8. The motor controller comprises a control box 9 and a circuit board 10. The front end cover 7 and the rear end cover 8 are respectively installed at both ends of the casing 4 through first bolts 20. The stator assembly 5 is installed in the casing 4. A first bearing seat 81 is protruded on the end surface of the rear end cover 8 facing the casing 4, and a first bearing chamber 811 is opened in the first bearing seat 81. A second bearing seat 71 is protruded on the end surface of the front end cover 7 facing the casing 4, a second bearing chamber 711 is opened in the second bearing seat 71, and a bearing 30 is installed in both the first bearing chamber 811 and the second bearing chamber 711. The rotor assembly 6 is sleeved on the rotating shaft 70, the rotating shaft 70 supports the bearing 30, the rotor assembly 6 is sleeved in the stator assembly 5, the circuit board 10 is installed in the control box 9, the control box 9 is installed on the rear end cover 8 through a locking device 40, the control box 9 is a control box capable of achieving motor suspension or vertical installation as described in embodiment one, the opening 11 of the control box 9 faces the direction of the rear end cover 8, so that the rear end cover 8 is sleeved on the first stop 12. A wire passing hole 84 is arranged on the rear end cover 8. The coil winding on the stator assembly 5 passes through the wire passing hole 84 into the cavity 3 of the control box and is electrically connected with the circuit board 10. A plurality of first threaded holes 82 are arranged on the rear end cover 8. The locking device 40 comprises a screw rod 401 and a nut 402. One end of the screw rod 401 penetrates the first mounting hole 24 of the control box 9 and is screwed into the first threaded hole 82. The other end of the screw rod 401 protrudes from the bottom plate 2 of the control box 9 and is threadedly connected with the nut 402, so that the control box 9 and the rear end cover 8 are locked together and form a suspended motor.

[0039] Several mounting protrusions 83 are provided on the end face of the rear cover 8 facing the housing 4. A second threaded hole 831 is provided on the mounting protrusion 83. Several second mounting holes 72 are provided on the front cover 7. After the threaded end of the first bolt 20 passes through the second mounting hole 72, it is threadedly connected to the second threaded hole 831, so that the rear cover 8, the front cover 7 and the housing 4 are locked together, making installation convenient.

[0040] Example 3:

[0041] like Figures 8 to 11 As shown, this embodiment provides a BLDC motor, including a motor body and a motor controller. The motor body includes a housing 4, a stator assembly 5, a rotor assembly 6, a shaft 70, a front cover 7, and a rear cover 8. The motor controller includes a control box 9 and a circuit board 10. The front cover 7 and the rear cover 8 are respectively mounted on both ends of the housing 4 by first bolts 20. The stator assembly 5 is installed inside the housing 4. A first bearing seat 81 protrudes from the end face of the rear cover 8 facing the housing 4, and a first bearing chamber 811 is formed in the first bearing seat 81. A second bearing seat 71 protrudes from the end face of the front cover 7 facing the housing 4, and a second bearing chamber 711 is formed in the second bearing seat 71. Bearings 30 are installed in both the first bearing chamber 811 and the second bearing chamber 711. The rotor assembly 6 is fitted onto the shaft 70, and the shaft 70 supports the bearings 30. The rotor assembly 6 is fitted into the stator assembly 5. The circuit board 10 is installed in the control box 9. The control box 9 is mounted on the rear end cover 8 via a locking device 40. The control box 9 is a type of control box that enables motor hoisting or vertical mounting as described in Embodiment 1. The bottom plate 2 of the control box 9 faces the rear end cover 8, so that the rear end cover 8 is fitted onto the second stop 13. The rear end cover 8 is provided with a wire hole 84, which corresponds to the first through hole 21 of the control box 9, so that the coil winding on the stator assembly 5 can pass through the wire hole 84 and the first through hole 21 to enter the cavity 3 of the control box and be electrically connected to the circuit board 10. A cover plate 60 is installed at the opening 11 of the control box 9. The cover plate 60 is provided with several third mounting holes 601. The rear end cover 8 is provided with several first threaded holes 82. The threaded end of the second bolt 50 passes through the third mounting holes 601 and the first mounting holes 24 in sequence and is threadedly connected to the first threaded holes 82, so that the control box 9 and the rear end cover 8 are locked together to form a vertically mounted motor.

[0042] Several mounting protrusions 83 are provided on the end face of the rear cover 8 facing the housing 4. A second threaded hole 831 is provided on the mounting protrusion 83. Several second mounting holes 72 are provided on the front cover 7. After the threaded end of the first bolt 20 passes through the second mounting hole 72, it is threadedly connected to the second threaded hole 831, so that the rear cover 8, the front cover 7 and the housing 4 are locked together, making installation convenient.

[0043] The second mounting groove 602 is arranged on the top surface of the cover plate 60, and is used for attaching a label or a nameplate.

[0044] The above embodiments are the preferred embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes, modifications, substitutions, combinations, simplifications, etc. made without departing from the spirit and principle of the present application are equivalent replacement manners, and are all included in the protection scope of the present application.

Claims

1. A control box capable of suspending or vertically mounting a motor, characterized in that: Includes a sleeve part (1) and a base plate (2) provided at the bottom end of the sleeve part (1). An opening (11) is formed at the top end of the sleeve part (1). The sleeve part (1) and the base plate (2) form a cavity (3) together. The opening (11) communicates with the cavity (3). A first stop (12) and a second stop (13) are respectively provided at both ends of the sleeve part (1). The first stop (12) is located on one side of the opening (11), and the second stop (13) is located on one side of the base plate (2). A first through hole (21) is provided on the base plate (2). The first through hole (21) communicates with the cavity (3), so that the base plate (2) of the control box (9) can face the motor direction and be installed on the motor, or the opening (11) of the control box (9) can face the motor direction and be installed on the motor. Several first mounting holes (24) are provided on the base plate (2) at circumferential intervals. Several mounting posts (23) are provided on the inner end face of the base plate (2). The several mounting posts (23) are provided in correspondence with several first mounting holes (24), and the first mounting holes (24) pass through the mounting posts (23). When the motor is hoisted, the control box is installed on the rear end cover (8) of the motor through the locking device (40). The opening (11) of the control box (9) faces the rear end cover (8), so that the rear end cover (8) is fitted on the first stop (12). The rear end cover (8) is provided with a wire hole (84). The coil winding on the stator assembly (5) of the motor passes through the wire hole (84) and enters the cavity (3) of the control box through several wires to be electrically connected to the circuit board (10) installed in the control box (9). A number of first threaded holes (82) are provided on the rear cover (8). The locking device (40) includes a screw (401) and a nut (402). One end of the screw (401) passes through the first mounting hole (24) of the control box (9) and is screwed into the first threaded hole (82). The other end of the screw (401) protrudes from the bottom plate (2) of the control box (9) and is threadedly connected to the nut (402), so that the control box (9) and the rear cover (8) are locked together and a suspended motor is formed. When the motor is mounted upright, the control box (9) is installed on the rear end cover (8) via the locking device (40). The bottom plate (2) of the control box (9) faces the rear end cover (8) of the motor, so that the rear end cover (8) is fitted onto the second stop (13). The rear end cover (8) is provided with a wire hole (84), which corresponds to the first through hole (21) of the control box (9), so that the coil windings on the stator assembly (5) of the motor can pass through the wire hole (84) and the first through hole (21) to enter the cavity (3) of the control box through several wires. Electrically connected to the circuit board (10) installed inside the control box (9); a cover plate (60) is installed at the opening (11) of the control box (9), and a number of third mounting holes (601) are provided on the cover plate (60). A number of first threaded holes (82) are provided on the rear cover (8). The threaded end of the second bolt (50) passes through the third mounting hole (601) and the first mounting hole (24) in sequence, and then is threadedly connected to the first threaded hole (82), so that the control box (9) and the rear cover (8) are locked together and form a vertical motor.

2. The control box according to claim 1, which enables motor hoisting or vertical mounting, is characterized in that: A boss (22) is provided on the inner end face of the base plate (2), and the first through hole (21) passes through the boss (22).

3. The control box according to claim 1, which enables motor hoisting or vertical mounting, is characterized in that: A drainage groove (14) is provided on the outer surface of the sleeve part (1), and a slot (15) for installing the wire sheath (100) is provided on the sleeve part (1).

4. A control box capable of suspending or vertically mounting a motor according to claim 1, 2, or 3, characterized in that: A first mounting groove (25) for attaching a nameplate is provided on the outer end face of the base plate (2).

5. A BLDC motor, comprising a motor body and a motor controller, the motor body comprising a housing (4), a stator assembly (5), a rotor assembly (6), a shaft (70), a front end cover (7), and a rear end cover (8); the motor controller comprising a control box (9) and a circuit board (10), the front end cover (7) and the rear end cover (8) being respectively mounted on both ends of the housing (4) by a first bolt (20), the stator assembly (5) being mounted inside the housing (4), and a first bearing seat (81) being provided protruding on the end face of the rear end cover (8) facing the housing (4). (81) has a first bearing chamber (811); a second bearing seat (71) is provided on the end face of the front cover (7) facing the housing (4), the second bearing seat (71) has a second bearing chamber (711), and bearings (30) are installed in both the first bearing chamber (811) and the second bearing chamber (711). The rotor assembly (6) is fitted on the rotating shaft (70), the rotating shaft (70) supports the bearings (30), the rotor assembly (6) is fitted in the stator assembly (5), and the circuit board (10) is installed in the control box (9). The characteristic is that: The control box (9) is a control box that enables motor hoisting or vertical mounting as described in any one of claims 1 to 4.

6. A BLDC motor according to claim 5, characterized in that: A number of mounting protrusions (83) are provided on the end face of the rear cover (8) facing the housing (4). A second threaded hole (831) is provided on the mounting protrusion (83). A number of second mounting holes (72) are provided on the front cover (7). After the threaded end of the first bolt (20) passes through the second mounting hole (72), it is threadedly connected to the second threaded hole (831), so that the rear cover (8), the front cover (7) and the housing (4) are locked together.

7. A BLDC motor according to claim 6, characterized in that: A second mounting groove (602) for attaching a nameplate is provided on the top surface of the cover plate (60).

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