Motor controller and motor using same

Abstract

The motor controller comprises a control box and a control board installed in the control box, and is characterized by further comprising a support and a rectifier bridge, the rectifier bridge and the support are arranged at the bottom of the control board, the support is located between the bottom of the control board and the rectifier bridge, the support plays a role in limiting, and the control board is connected with the support. The rectifier bridge is tightly attached to the wall face of the control box, the rectifier bridge installation structure of the structure cancels procedures of an independent radiator and an installation assembly, cost is saved, the rectifier bridge is directly installed at the bottom of the control box, the wall of the control box is used as the radiator, and therefore the structure is simple and convenient. Heat is directly conducted out of the controller, and the heat dissipation effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of motor controller and the motor of its application. BACKGROUND

[0002] In traditional motor controller, rectifier bridge and radiator are connected by screw as component and installed on control panel, which is troublesome to install and has complicated process;It cannot guarantee the welding height size and perpendicularity of rectifier bridge, and it is easy to be damaged by stress, and the size of radiator is large, which requires high size of control box, and rectifier bridge is a heating device, so heat cannot be directly transferred to outside of control box, the temperature inside control box is high, which requires high design of motor controller heat dissipation, and it has poor versatility. SUMMARY

[0003] The utility model discloses a kind of motor controller and the motor of its application, solve the technical problems in prior art that rectifier bridge and radiator are connected by screw as component and installed on control panel, which is troublesome to install and has complicated process;It cannot guarantee the welding height size and perpendicularity of rectifier bridge, and it is easy to be damaged by stress, and the size of radiator is large, which requires high size of control box, and rectifier bridge is a heating device, so heat cannot be directly transferred to outside of control box, the temperature inside control box is high, which requires high design of motor controller heat dissipation, and it has poor versatility.

[0004] The technical scheme of the utility model is realized as follows:

[0005] The utility model provides a kind of motor controller, including control box and control panel installed in control box, it is characterized in that: still include support and rectifier bridge, support is placed in the bottom of control panel, rectifier bridge is installed in the bottom of support, support is located between the bottom of control panel and rectifier bridge, and rectifier bridge is close to the wall surface of control box.

[0006] The outer surface of the control box is provided with a plurality of heat dissipation ribs.

[0007] The support is made of insulating material.

[0008] The bottom of the control box is provided with a screw hole, the rectifier bridge is provided with a first through hole, the support is axially provided with a boss, the end of the boss is provided with a counterbore, the bottom of the boss is provided with a second through hole, the second through hole is communicated with the counterbore, the control panel is provided with a third through hole, the end of the boss is extended through the third through hole, the screw head of the screw is abutted in the counterbore of the boss, and the screw rod of the screw is locked and connected through the second through hole, the first through hole and the screw hole of the control box.

[0009] The bottom of the control box is provided with a first heat dissipation boss, and the screw hole is arranged in the first heat dissipation boss.

[0010] The control board is further provided with a plurality of power modules.

[0011] The bottom of the control box is provided with a plurality of second heat dissipation bosses, and the plurality of power modules are tightly attached to the plurality of heat dissipation bosses.

[0012] The control box is provided with a positioning column, and the control board is provided with a positioning hole matched with the positioning column.

[0013] A motor comprises a motor body and a motor controller installed at the bottom of the motor body, the motor body comprises a stator assembly, a rotor assembly and a motor shell, characterized in that the motor controller is the motor controller as described above.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. A motor controller, comprising a control box and a control board installed in the control box, characterized in that it further comprises a support and a rectifier bridge, the support is arranged at the bottom of the control board, the rectifier bridge is installed at the bottom of the support, the support is located between the bottom of the control board and the rectifier bridge, the welding height of the rectifier bridge and the parallelism between the plane of the rectifier bridge and the plane of the control board are ensured, the rectifier bridge is tightly attached to the wall surface of the control box, the rectifier bridge mounting structure of the structure cancels the process of a separate radiator and mounting assembly, saves the cost, and the rectifier bridge is directly installed at the bottom of the control box, so that the wall of the control box is used as a radiator, heat is directly led out of the controller, and the heat dissipation effect is better.

[0016] 2. Other advantages of the utility model are described in detail in the embodiment part of the specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective view of the utility model is provided;

[0018] Figure 2 An exploded view of the utility model is provided;

[0019] Figure 3 A front view of the utility model is provided;

[0020] Figure 4 A Figure 3 Sectional view of A-A. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Example 1:

[0023] like Figures 1 to 4 As shown, this embodiment provides a motor controller, including a control box 1 and a control board 2 installed inside the control box 1. The controller is characterized by further including a bracket 3 and a rectifier bridge 4. The bracket 3 is placed at the bottom of the control board 2, and the rectifier bridge 4 is installed at the bottom of the bracket 3. The bracket 3 is located between the bottom of the control board 2 and the rectifier bridge 4, serving as a limiting element to ensure the welding height of the rectifier bridge and the parallelism between the rectifier bridge plane and the control board plane. The rectifier bridge 4 is tightly attached to the wall of the control box 1. This rectifier bridge installation structure eliminates the need for separate heat sinks and installation components, saving costs. The rectifier bridge is directly installed at the bottom of the control box, using the control box wall as a heat sink, allowing heat to be directly dissipated outside the controller, resulting in better heat dissipation.

[0024] The outer surface of the control box 1 described above is provided with several heat dissipation fins 11, which effectively provide heat dissipation.

[0025] The aforementioned bracket 3 is made of insulating material, and the bracket serves as an insulation element.

[0026] The control box 1 has a screw hole 12 at the bottom, the rectifier bridge 4 has a first through hole 41, the bracket 3 has an axially protruding boss 31, the end of the boss 31 has a countersunk hole 32, the bottom of the boss 31 has a second through hole 32a, the second through hole 32a communicates with the countersunk hole 32, the control board 2 has a third through hole 21, the end of the boss 31 extends through the third through hole 21, and the screw head 101 of the screw 100 abuts against the countersunk hole 32 of the boss 31, the screw shank 102 of the screw 100 passes through the second through hole 32a, the first through hole 41 and locks into the screw hole 12 of the control box 1. The rectifier bridge and the controller are fixed by the bracket by screwing. When fixed, the rectifier bridge is not directly subjected to force and the force-bearing area is large, which avoids the risk of local stress damage due to force concentration compared with the traditional design.

[0027] The bottom of the control box 1 is provided with a first heat dissipation protrusion 13, and screw holes 12 are arranged in the first heat dissipation protrusion 13. The rectifier bridge 4 is closely attached to the first heat dissipation protrusion 13 to improve the heat dissipation effect.

[0028] The control panel 2 is further provided with a plurality of power modules 22, and the bottom of the control box 1 is provided with a plurality of second heat dissipation bosses 14, the plurality of power modules 22 are tightly attached to the plurality of heat dissipation bosses 14, and the heat dissipation effect is good.

[0029] The control box 1 is provided with a positioning column 15, and the control panel 2 is provided with a positioning hole 23 matched with the positioning column 15, so that the installation positioning effect is good.

[0030] Embodiment two:

[0031] A motor comprises a motor body and a motor controller installed at the bottom of the motor body, the motor body comprises a stator assembly, a rotor assembly and a motor shell, characterized in that the motor controller is the motor controller in the embodiment one.

[0032] The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited to this, and any change, modification, replacement, combination, simplification, equivalent replacement mode under the condition that the spirit and principle of the utility model are not deviated, all are contained in the protection scope of the utility model.

Claims

1. An electric machine controller comprising a control box (1) and a control board (2) mounted inside the control box (1), characterized in that: The control box (1) further comprises a bracket (3) and a rectifier bridge (4), the bracket (3) is arranged at the bottom of the control panel (2), the rectifier bridge (4) is arranged at the bottom of the bracket (3), the bracket (3) is arranged between the bottom of the control panel (2) and the rectifier bridge (4), and the rectifier bridge (4) is tightly arranged on the wall surface of the control box (1).

2. An electric machine controller according to claim 1, characterized in that: The outer surface of the control box (1) is provided with a plurality of heat dissipation ribs (11).

3. A motor controller according to claim 1, wherein: The bracket (3) is made of insulating material.

4. An electric machine controller according to claim 1 or 2 or 3, characterised in that: The bottom of the control box (1) is provided with a screw hole (12), the rectifier bridge (4) is provided with a first through hole (41), the bracket (3) is provided with an axial boss (31), the end of the boss (31) is provided with a counterbore (32), the bottom of the boss (31) is provided with a second through hole (32a), the second through hole (32a) is communicated with the counterbore (32), the control panel (2) is provided with a third through hole (21), the end of the boss (31) is arranged to extend through the third through hole (21), the screw head (101) of the screw (100) is arranged in the counterbore (32) of the boss (31), and the screw rod (102) of the screw (100) is arranged to be locked and connected with the screw hole (12) of the control box (1) through the second through hole (32a) and the first through hole (41).

5. An electric machine controller according to claim 4, characterised in that: The bottom of the control box (1) is provided with a first heat dissipation boss (13), and the screw hole (12) is arranged in the first heat dissipation boss (13), and the rectifier bridge (4) is tightly arranged on the first heat dissipation boss (13).

6. An electric machine controller according to claim 5, characterised in that: The control panel (2) is further provided with a plurality of power modules (22).

7. An electric machine controller according to claim 6, characterised in that: The bottom of the control box (1) is provided with a plurality of second heat dissipation bosses (14), and the plurality of power modules (22) are tightly arranged on the plurality of heat dissipation bosses (14).

8. An electric machine controller according to claim 7, characterised in that: The control box (1) is provided with a positioning column (15), and the control panel (2) is provided with a positioning hole (23) matched with the positioning column (15).

9. An electric machine comprising an electric machine body and an electric machine controller mounted at the bottom of the electric machine body, the electric machine body comprising a stator assembly, a rotor assembly and an electric machine housing, characterized in that: The motor controller is the motor controller in any one of claims 1 to 8.

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