Novel motor controller with anti-interference function

Abstract

The utility model relates to the technical field of motor controllers, in particular to a novel motor controller with an anti-interference function, which comprises a bottom plate and a controller fixedly mounted on the upper side of the bottom plate. Four sets of lug plates are fixedly installed at the front end and the rear end of the bottom plate, a protection shell is movably installed on the upper side of the bottom plate, a locking assembly is arranged at the attaching position of the protection shell and the bottom plate, a data connector is arranged on the front side of the protection shell and connected with a controller, and an anti-interference cover is arranged on the inner wall of the protection shell. According to the utility model, the protection shell is fixedly installed on the bottom plate, the protection shell protects the controller and the filter on the bottom plate, and when the controller and the filter are used through the anti-interference cover in the protection shell, the electromagnetic anti-interference effect of the controller in use is enhanced, and the anti-interference protection of the controller in use is realized. And the four groups of limiting blocks are inserted into the four groups of limiting grooves, so that the protection shell can be conveniently and quickly mounted and dismounted from the bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of motor controllers, in particular to a novel motor controller with an anti-interference function. Background Art

[0002] The three core components of electric vehicles: vehicle controller, battery management system and motor control system, are interconnected through control signal harnesses and power harnesses. The harnesses and connectors account for a large cost, and the reliability of the connectors is poor during long-term operation of the vehicle. The motor controller controls the motor to work in the set direction, speed, angle, and response time through the active work of the integrated circuit.

[0003] The motor has a wider range of applications, higher output efficiency, lower noise and other advantages. Motor controllers have different types due to their different use ranges. DC series motor controllers are widely used in electric forklifts and cars, and can effectively make the operation of electric vehicles accurate, flexible and simple.

[0004] Functions of the motor control system: To achieve the conversion of electrical energy into vehicle kinetic energy, the motor controller receives the torque / speed control command from the vehicle controller, and according to the vehicle's operating conditions, inverts the DC bus voltage into three-phase AC to control the output torque of the drive motor. At present, the three core components of electric vehicles belong to independent control systems, each with its own electrical box, connected to each other by cables. From the perspective of data processing, the data types processed by the vehicle controller and the motor controller are similar, and the functions of the two can be integrated together, thereby saving connection lines and reducing tedious data communication work.

[0005] The existing motor controller has weak anti-interference ability. When it is subjected to strong external electromagnetic interference, the controller will not work. When the input signal is interfered with, the controller cannot correctly process the instructions issued by the signal. When the output signal is interfered with, the motor connected to it cannot work. In serious cases, it will cause equipment damage, resulting in economic losses, reducing the practicality of the motor controller, which is not conducive to use and cannot meet its use requirements. For this reason, we propose a new motor controller with anti-interference function to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a new motor controller with anti-interference function to solve the problem that the existing motor controller mentioned in the above background technology has weak anti-interference ability, and when it is subjected to strong external electromagnetic interference, the controller cannot work, and when the input signal is interfered, the controller cannot correctly process the instructions issued by the signal.

[0007] To achieve the above object, the utility model provides the following technical solutions: a new motor controller with anti-interference function, comprising a base plate and a controller, wherein the controller is fixedly mounted on the upper side of the base plate;

[0008] Four groups of ear plates are fixedly installed at the front and rear ends of the base plate, a protective shell is movably installed on the upper side of the base plate, a locking assembly is provided at the joint between the protective shell and the base plate, a data connector is provided on the front side of the protective shell, the data connector is connected to the controller, an anti-interference cover is provided on the inner wall of the protective shell, the anti-interference cover is fitted with the outer wall of the base plate, and a wiring hole is opened at the front end of the anti-interference cover.

[0009] Preferably, a filter is fixedly mounted on the upper end of the controller, the filter is located between the protective shell and the upper end of the controller, and the filter is connected to the controller.

[0010] Preferably, a plurality of groups of through holes are arranged in an array on the upper end of the protective shell, and the plurality of groups of through holes are located above the controller and the filter.

[0011] Preferably, the locking assembly includes four groups of protrusions, the four groups of protrusions are fixedly mounted on the upper side of the bottom plate, four groups of grooves are opened in the lower end of the protective shell, four groups of limiting grooves are opened at the lower end of the protective shell, the four groups of limiting grooves are through-connected with the upper ends of the four groups of grooves, movable grooves are opened in the upper ends of the four groups of protrusions, springs are installed in the four groups of movable grooves, limiting blocks are installed at the openings of the four groups of movable grooves, and the four groups of limiting blocks are movably inserted in the four groups of limiting grooves.

[0012] Preferably, the upper sides of the four groups of limit blocks are all inclined surfaces, and the lower sides of the four groups of limit blocks are flush with the lower side of the inner wall of the limit groove.

[0013] Preferably, the anti-interference cover is made of ferrite material, and the inner and outer walls of the anti-interference cover are respectively fitted with the inner wall of the protective shell and the outer walls of the controller and the filter.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model fixes the protective shell on the base plate, and the protective shell protects the controller and the filter on the base plate. When the controller and the filter are used through the anti-interference cover in the protective shell, the electromagnetic anti-interference effect of the controller is enhanced, and the anti-interference protection of the controller is provided when the controller is used. In addition, four groups of limit blocks are inserted in four groups of limit grooves, so that the protective shell can be quickly installed and removed from the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a right side cross-sectional schematic diagram of the structure of the utility model;

[0019] Figure 4 It is a left-side cross-sectional schematic diagram of the structure of the utility model;

[0020] Figure 5 For this utility model Figure 4 A is a partial enlarged schematic diagram of the middle part.

[0021] In the figure: 1, bottom plate; 2, ear plate; 3, controller; 4, filter; 5, protective shell; 6, data connector; 7, through hole; 8, anti-interference cover; 9, wire hole; 10, bump; 11, groove; 12, limit slot; 13, movable slot; 14, spring; 15, limit block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides an embodiment: a new motor controller with anti-interference function, including a base plate 1 and a controller 3, the controller 3 is fixedly mounted on the upper side of the base plate 1;

[0024] Four groups of ear plates 2 are fixedly installed at the front and rear ends of the bottom plate 1, a protective shell 5 is movably installed on the upper side of the bottom plate 1, a locking component is provided at the joint between the protective shell 5 and the bottom plate 1, a data connector 6 is provided on the front side of the protective shell 5, the data connector 6 is connected to the controller 3, an anti-interference cover 8 is provided on the inner wall of the protective shell 5, the anti-interference cover 8 is fitted with the outer wall of the bottom plate 1, and a wire hole 9 is opened at the front end of the anti-interference cover 8. The device installs the protective shell 5 on the bottom plate 1 through the locking component, and performs electromagnetic anti-interference protection on the controller 3 installed on the bottom plate 1 through the anti-interference cover 8 in the protective shell 5, so as to prevent the controller 3 from being disturbed by electromagnetic interference when in use;

[0025] Furthermore, a filter 4 is fixedly installed on the upper end of the controller 3, and the filter 4 is between the protective shell 5 and the upper end of the controller 3. The filter 4 is connected to the controller 3. This structure removes high-frequency components caused by interference of the controller 3 by adding the filter 4 when the controller 3 is used.

[0026] Furthermore, a plurality of groups of through holes 7 are arranged in an array on the upper end of the protective shell 5, and the plurality of groups of through holes 7 are located above the controller 3 and the filter 4. This structure dissipates the high temperature generated by the controller 3 and the filter 4 through the plurality of groups of through holes 7 on the protective shell 5, thereby preventing the heat generated by the controller 3 and the filter 4 from accumulating in the protective shell 5 and the base plate 1.

[0027] Furthermore, the locking assembly includes four groups of protrusions 10, which are fixedly installed on the upper side of the base plate 1, four groups of grooves 11 are opened in the lower end of the protective shell 5, and four groups of limiting grooves 12 are opened at the lower end of the protective shell 5. The four groups of limiting grooves 12 are through-connected with the upper ends of the four groups of grooves 11, and movable grooves 13 are opened in the upper ends of the four groups of protrusions 10. Springs 14 are installed in the four groups of movable grooves 13, and limiting blocks 15 are installed at the openings of the four groups of movable grooves 13. The four groups of limiting blocks 15 are movably inserted in the four groups of limiting grooves 12. When the protective shell 5 is installed on the base plate 1, this structure can limit and fix the protective shell 5 and the base plate 1 together by inserting the four groups of protrusions 10 in the four groups of grooves 11, and the four groups of limiting blocks 15 at the upper ends of the four groups of protrusions 10 are inserted in the four groups of limiting grooves 12.

[0028] Furthermore, the upper sides of the four groups of limit blocks 15 are all inclined surfaces, and the lower sides of the four groups of limit blocks 15 are flush with the lower sides of the inner walls of the limit grooves 12. This structure is based on the inclined surfaces on the upper sides of the four groups of limit blocks 15, which makes it easy for the four groups of limit blocks 15 to slide into the four groups of movable grooves 13 when the protective shell 5 is docked with the base plate 1, thereby preventing the four groups of limit blocks 15 from getting stuck in the docking of the protective shell 5 with the base plate 1.

[0029] Furthermore, the anti-interference cover 8 is made of ferrite material, and the inner and outer walls of the anti-interference cover 8 are respectively fitted with the inner wall of the protective shell 5 and the outer walls of the controller 3 and the filter 4. This structure, based on the material of the anti-interference cover 8, enables the anti-interference cover 8 to have high magnetic permeability and high-frequency magnetic permeability characteristics, effectively blocking the propagation of electromagnetic waves, and can effectively suppress the propagation of electromagnetic waves and radiation interference.

[0030] Working principle: When the protective shell 5 is connected to the bottom plate 1, Figure 2 , Figure 4 and Figure 5 As shown, the lower end of the protective shell 5 is aligned and fitted with the upper side of the base plate 1, the four groups of protrusions 10 on the upper side of the base plate 1 are inserted into the four groups of grooves 11, and the four groups of limit blocks 15 are squeezed by the inner walls of the four groups of grooves 11 and slide into the four groups of movable grooves 13. After the four groups of protrusions 10 are completely inserted into the four groups of grooves 11, the four groups of limit blocks 15 are popped out and inserted into the four groups of limit grooves 12 under the action of the restorative force of the four groups of springs 14, so that the protective shell 5 can be fixedly connected to the base plate 1, and the four groups of limit blocks 15 in the four groups of limit grooves 12 are pressed into the four groups of movable grooves 13, so that the protective shell 5 can be separated from the base plate 1. After the protective shell 5 is installed on the base plate 1, the controller 3 and the filter 4 on the base plate 1 are protected, and the anti-interference cover 8 on the inner wall of the protective shell 5 is used to resist electromagnetic interference when the controller 3 is in use, and the controller 3 dissipates heat through the multiple groups of through holes 7 at the upper end of the protective shell 5 when in use. The above is the entire working principle of the utility model.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A novel motor controller with anti-interference function, comprising a base plate (1) and a controller (3), wherein the controller (3) is fixedly mounted on the upper side of the base plate (1); characterized in that: Four groups of ear plates (2) are fixedly mounted at the front and rear ends of the bottom plate (1); a protective shell (5) is movably mounted on the upper side of the bottom plate (1); a locking assembly is provided at the joint between the protective shell (5) and the bottom plate (1); a data connector (6) is provided on the front side of the protective shell (5); the data connector (6) is connected to the controller (3); an anti-interference cover (8) is provided on the inner wall of the protective shell (5); the anti-interference cover (8) is in contact with the outer wall of the bottom plate (1); and a wire hole (9) is provided at the front end of the anti-interference cover (8).

2. The novel motor controller with anti-interference function according to claim 1 is characterized in that: A filter (4) is fixedly mounted on the upper end of the controller (3); the filter (4) is located between the protective shell (5) and the upper end of the controller (3); and the filter (4) is connected to the controller (3).

3. The novel motor controller with anti-interference function according to claim 1 is characterized in that: The upper end of the protective shell (5) is provided with a plurality of groups of through holes (7) in an array, and the plurality of groups of through holes (7) are located above the controller (3) and the filter (4).

4. The novel motor controller with anti-interference function according to claim 1 is characterized in that: The locking assembly comprises four groups of protrusions (10), the four groups of protrusions (10) being fixedly mounted on the upper side of the bottom plate (1), four groups of grooves (11) being formed in the lower end of the protective shell (5), four groups of limit grooves (12) being formed in the lower end of the protective shell (5), the four groups of limit grooves (12) being through-connected with the upper ends of the four groups of grooves (11), movable grooves (13) being formed in the upper ends of the four groups of protrusions (10), springs (14) being mounted in the four groups of movable grooves (13), and limit blocks (15) being mounted at the openings of the four groups of movable grooves (13), the four groups of limit blocks (15) being movably inserted in the four groups of limit grooves (12).

5. The novel motor controller with anti-interference function according to claim 4 is characterized in that: The upper sides of the four groups of limit blocks (15) are all inclined surfaces, and the lower sides of the four groups of limit blocks (15) are flush with the lower side of the inner wall of the limit groove (12).

6. The novel motor controller with anti-interference function according to claim 1 is characterized in that: The anti-interference cover (8) is made of ferrite material, and the inner and outer walls of the anti-interference cover (8) are respectively fitted with the inner wall of the protective shell (5) and the outer walls of the controller (3) and the filter (4).

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