CN212910446U - Controller structure of motor - Google Patents

Abstract

The utility model discloses a controller structure of motor, including base member, basic lid and controller chip mounting box, the base member is the conductor structure that has the appearance chamber, and its bottom ground connection, controller chip mounting box fixes and fixes in the base member, and the negative pole lead-out wire of this controller chip communicates the base member, the base lid passes through bolt or screw connection and each other is insulating with the base member, this base lid is whole insulating and set up the conductor piece that is used for communicating the positive pole of controller chip in the basic lid; the utility model discloses processing technology is simple, simple to operate, and the commonality is strong moreover, and stability is higher.

Description

Controller structure of motor

Technical Field

The utility model relates to a controller structure of motor belongs to motor control technology application.

Background

In the prior art, in the driving process of a servo motor (generally, a 3-phase alternating current motor, or 2 3 alternating current motors, which form six input ends), a controller is arranged between the servo motor and a driving end to realize rectification of the output of the servo motor and control of the power or on/off of the output.

Some existing simple controllers (or PS machines) can only rectify a servo motor, and their structure includes two substrates, the two substrates are integrally cast with metal material, the two substrates are insulated from each other, one of the substrates is grounded, the other substrate is provided with a rectifier bridge control element formed by diodes, the negative terminal of the control element is connected to the grounded substrate, the positive electrode (conductor sheet structure) of the control element is also connected to an external wire through a connection post on the corresponding substrate, in order to ensure the positive electrode of the control element is connected to the external wire stably on the connection post, the connection post is sleeved with a nut, the positive electrode of the control element is tightly attached to the external wire connection end through a torsion (the torsion is referred to the prior art standard), therefore, the connection post must be fixed to the basic connection (i.e. the connection post cannot be displaced up and down or shifted left and right), however, the connecting column is inconsistent with the base body provided with the control element in material (considering casting process, material and assembly cost), so that the effect of the torque is difficult to overcome by the fixing mode between the connecting column and the base body (in the prior art, the connecting column is generally fixed on the base body through a through hole in the base body in a rivet mode), later-stage looseness or deviation is easy to occur between the joint and the base body due to vibration or other external factors, the connection between the control element and an external wire is unstable, and the servo motor cannot be normally controlled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controller structure of motor changes current project organization completely to overcome prior art's not enough.

The technical scheme of the utility model

A controller structure of a motor comprises a base body, a base cover and a controller chip mounting box;

the substrate is a conductor structure with a cavity, and the bottom of the substrate is grounded;

the controller chip mounting box is fixed in the substrate, and a negative electrode lead wire of the controller chip is communicated with the substrate;

the base cover and the base body are connected through bolts or screws and are insulated from each other, the base cover is integrally insulated, and a conductor sheet for communicating the anode of the controller chip is arranged in the base cover;

the conductor sheet is pre-embedded in the base cover, and the output end of the conductor sheet is exposed.

Preferably, controller chip mounting box bottom is for having electrically conductive aluminum sheet structure, and this aluminum sheet structure and controller chip's negative pole end switch-on set up the bolt groove on the other base member of controller chip mounting box and this bolt groove forms an organic whole with the base member and has electrically conductive action, and the bolt passes aluminum sheet structure and screws up at the bolt inslot for controller chip negative pole in the controller chip mounting box loops through aluminum sheet structure, bolt, on the base member of bolt groove intercommunication and forms ground connection.

Preferably, a fixing column is embedded in a base cover of the output end of the conductor piece, the output end of the conductor piece is sleeved on the fixing column, and an external electric wire connected with the positive electrode of the controller chip is sleeved on the fixing column to realize that the external electric wire is connected and fixed with the conductor piece.

Preferably, the upper part of the fixing column is in a threaded structure, and the nut is matched with the fixing column so that the conductor sheet sleeved on the fixing column and the external electric wire are stably contacted with each other.

Preferably, a support circular plate is provided below the fixing post, and the support circular plate is integrally fitted into the base cover with the upper surface thereof exposed.

Preferably, the upper surface of the supporting circular plate is higher than the upper surface of the base cover around the supporting circular plate.

Preferably, set up solid fixed ring and wrap up in by the base cover and make solid fixed ring external insulation in the fixed column bottom, set up the bolt hole on the base member that corresponds with solid fixed ring position, bolt one passes solid fixed ring and bolt hole cooperation is connected, realizes solid fixed ring middle part and base cover fixed, and it is fixed and insulating each other through bolt one and base member in its bottom.

Preferably, a sleeve is arranged in the hollow position in the middle of the fixing ring, the sleeve is embedded on the base cover around the fixing ring, and the bolt penetrates through the sleeve and then is matched with the bolt hole.

Preferably, a sawtooth strip parallel to the axis of the sleeve is arranged on the outer surface of the sleeve, a shallow groove ring is arranged on the outer surface of the sleeve, and the sawtooth strip and the shallow groove ring are staggered with each other.

Owing to adopted above-mentioned technical scheme, compare with prior art, the utility model discloses processing technology is simple, simple to operate, and the commonality is strong moreover, and stability is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1 at the fixed post of FIG. 1;

FIG. 3 is a schematic structural view of the base body of the present invention;

FIG. 4 is a schematic structural view of a controller chip mounting box of the present invention;

FIG. 5 is a schematic view of the aluminum sheet structure of the present invention;

FIG. 6 is a schematic structural view of the middle sleeve of the present invention;

FIG. 7 is a schematic view of the connection between the present invention and an external electric wire;

fig. 8 is a schematic cross-sectional view of the retainer ring of fig. 7 in cooperation with the first bolt.

The labels in the figures are: the device comprises a base body 1, a base cover 2, a controller chip mounting box 3, a conductor sheet 4, an aluminum sheet 5, a bolt groove 6, a bolt 7, a fixing column 8, a fixing ring 9, a bolt hole 10, a bolt I11, a nut 12, a supporting circular plate 13, a sleeve 14, a sawtooth strip 15, a shallow groove ring 16, a connecting end 17, a through hole 18, a boss 19, an external wire 20, an upper surface 21 and a gap 22.

Detailed Description

The present invention will be described in further detail with reference to the attached drawings, but the present invention is not limited thereto.

As shown in fig. 1-8, the controller structure of the motor of the present invention comprises a base 1, a base cover 2 and a controller chip mounting box 3; the substrate 1 is a conductor structure with a cavity, and the bottom of the substrate is grounded; the controller chip mounting box 3 is fixed in the substrate 1, and a negative lead wire of the controller chip is communicated with the substrate 1; the base cover 2 and the base body 1 are connected through bolts or screws and are insulated from each other, the base cover 2 is insulated integrally, and a conductor piece 4 for communicating the anode of the controller chip is arranged in the base cover 2; the conductor piece 4 is embedded in the base cover 2 and the output end thereof is exposed (wherein the specific structure of the base body 1, the base cover 2 and the controller chip mounting box 3 in the embodiment can refer to the patent document filed on the same day as the present application, the patent name is: a mounting structure of power electronic equipment of a motor, applicant: yaoshi electronic technology, inc., Guizhou), wherein the controller chip mounting box 3 is placed on the connecting end 17 of the base body 1 which is matched with the controller chip mounting box 3, wherein the base body 1 is integrally cast (generally cast by aluminum) by metal with conductivity, the base cover 2 is integrally cast by insulating plastic material, and the conductor piece 4 is placed on the base cover 2 and integrally cast by a mold, and the input end and the output end thereof are exposed respectively.

In the prior art, two substrates are integrally cast by aluminum casting, so that the substrate on the upper layer is not cast by plastic, mainly, connecting columns (the connecting columns are all made of metal with extremely high conductivity, such as aluminum or copper) in the prior art need to be fixedly connected with the connecting columns, if the substrates and the connecting columns are made of plastic, the connecting columns and the substrates are difficult to bear the torsion under the action of the torque, so that the upper substrates are generally made of metal with higher hardness, then the connecting columns are fixed in connecting holes of the upper substrates by rivets, but the connecting mode is still unreliable, the two metal parts are fixed by mechanical pretension (deformation of the rivets), and are easy to loosen in the long-term use process, so that the connection at the positions is unreliable.

The bottom of the controller chip mounting box 3 is provided with a conductive aluminum sheet structure 5, the aluminum sheet structure 5 is communicated with the negative electrode end of the controller chip, and the connection mode is shown in the figure; the chip is put into a controller chip mounting box 3, the controller chip mounting box 3 is still made of insulating plastic material, the bottom of the controller chip mounting box 3 is provided with a through hole 18, the negative electrode end of the chip is opposite to the through hole 18, the aluminum sheet structure 5 is provided with a connecting boss 19, the lug boss penetrates through the through hole 18 to be in contact connection with the negative electrode of the chip, then the aluminum sheet structure 5 is fixed at the bottom of the controller chip mounting box 3 to form a whole, the negative electrode end of the chip is communicated with the aluminum sheet structure 5, a bolt groove 6 is arranged on the base body 1 beside the controller chip mounting box 3, the bolt groove 6 and the base body are integrated into a whole to have the electric conduction function, a bolt 7 penetrates through the aluminum sheet structure 5 and is screwed in the bolt groove 6, so that the cathode of the controller chip in the controller chip mounting box 3 is communicated with the substrate 1 through the aluminum sheet structure 5, the bolt 7 and the bolt groove 6 in sequence and forms grounding.

A fixing column 8 is pre-buried at the base cover 2 at the output end of a conductor sheet 4, the output end of the conductor sheet 4 is sleeved on the fixing column 8, an external electric wire connected with the positive electrode of a controller chip is sleeved on the fixing column 8 to realize the connection and fixation of the external electric wire and the conductor sheet 4, the upper part of the fixing column 8 is in a threaded structure, a nut 12 is matched with the fixing column 8 to ensure that the conductor sheet 4 and the external electric wire 20 sleeved on the fixing column 8 are stably contacted with each other, a supporting circular plate 13 is arranged at the lower part of the fixing column 8, the supporting circular plate 13 is integrally embedded in the base cover 2, the upper surface of the supporting circular plate 13 is exposed, the upper surface 21 of the supporting circular plate 13 is higher than the upper surface of the base cover 2 around the supporting circular plate, and through the arrangement of; meanwhile, the upper surface 21 of the supporting circular plate 13 is arranged, so that the conductor piece 4 can be tightly connected with the external electric wire 20 when the conductor piece 4 is screwed with the external electric wire 20 at the nut 12, and meanwhile, the conductor piece 4 can be connected with the external electric wire 20 through the supporting circular plate 13, the nut 12 and the fixing post 8 at the same time when the conductor piece 4 is connected with the external electric wire 20.

A fixing ring 9 is arranged at the bottom end of the fixing column 8 and the fixing ring 9 is wrapped by the base cover 2 so that the fixing ring 9 is insulated from the outside, the base body 2 corresponding to the position of the fixing ring 9 is provided with a bolt hole 10, a bolt 11 passes through the fixing ring 9 to be matched and connected with the bolt hole 10, the middle part of the fixing ring 9 is fixed with the base cover 2, the bottom of the fixing ring is fixed with the base body 1 through a first bolt 11 and insulated with each other, a sleeve 14 is arranged at the hollow position in the middle of the fixing ring 9, the sleeve 14 is embedded on the base cover 2 around the fixing ring 9, the bolt I11 passes through the sleeve 14 and is matched with the bolt hole 10, on the outer surface of the sleeve 14 is arranged a sawtooth rack 15 parallel to the axis of the sleeve 14, on the outer surface of the sleeve 14 is arranged a shallow groove ring 16, the sawtooth strips 15 and the shallow groove rings 16 are mutually staggered, and by arranging the sawtooth strips 15 and the shallow groove rings 16, so that the base body 2 covering the outside of the sleeve 14 can limit the direction of rotation or axial movement of the sleeve 14.

In the embodiment, the fixing post 8, the supporting circular plate 13 and the fixing ring 9 (the thickness of the fixing ring 9 is not limited, and can be specifically designed according to the torsion force) are integrally cast and integrated, after the fixing post 8 adopts the structure, when the base cover 2 is cast by using an insulating material, the fixing post 8 adopts integral casting (at this time, the conductor sheet 4 is also cast together and the conductor sheet 4 is sleeved on the fixing post 8), so that the thread structure part of the fixing post 8, the upper surface 21 of the supporting circular plate and the hollow part of the sleeve 14 are exposed, and the rest is completely covered by the base cover 2 (including the gap 22 between the fixing ring 9 and the sleeve 14 is filled with the insulating material forming the base cover 2), the bolt hole 10 is arranged on the base body 1 corresponding to the position of the fixing ring 9, and the bolt one 11 is screwed into the bolt hole 10.

Then, when the external electric wire 20 is put on the fixing post 8 to be in contact connection with the conductor strip 4, by screwing the nut 12 onto the fixing post 8, a torsion force (referred to the prior art standard) is applied to make the conductor strip 4 and the external electric wire 20 contact each other (meanwhile, the fixing ring 9 on the fixing post also makes the conductor strip 4 and the external electric wire 20 contact each other).

When torsion is generated, the fixing column 8 is also subjected to torsion, the fixing column 8 is integrally covered by the base cover 2 to realize position fixing, the plastic is a brittle material and has low strength and cannot resist the application of excessive torsion (easy to break) to the fixing column, the torsion applied to the fixing column 8 is mainly transmitted to the sleeve 14 and then to the bolt I11 through the fixing column 8, and finally to the base body 1, the fixing column 8 (comprising the fixing ring 9 and the supporting circular plate 13), the sleeve 14, the bolt I11 and the base body 1 are all made of metal with strong hardness, so that the large torsion can be resisted, and the base cover 2 is integrally subjected to only part of the torsion (the base cover only has the function of limiting the position of the fixing column 8), so that the torsion of the fixing column is greatly increased, and the controller can be ensured to be in line contact with the outside in use.

Compared with the prior art, the base cover 2 is made of insulating plastic, the cost is greatly saved, the space for installing the chip on the base body is increased, the controller can have more control functions, and the connection of the output end is reliable and stable.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (9)

1. A controller structure of a motor, characterized in that: the device comprises a base body (1), a base cover (2) and a controller chip mounting box (3);

the substrate (1) is a conductor structure with a cavity, and the bottom of the substrate is grounded;

the controller chip mounting box (3) is fixed in the base body (1), and a negative electrode lead wire of the controller chip is communicated with the base body (1);

the base cover (2) and the base body (1) are connected through bolts or screws and are insulated from each other, the base cover (2) is insulated from the whole body, and a conductor sheet (4) for communicating the positive electrode of the controller chip is arranged in the base cover (2);

the conductor sheet (4) is pre-embedded in the base cover (2) and the output end of the conductor sheet is exposed.

2. The controller structure of an electric motor according to claim 1, wherein: controller chip mounting box (3) bottom is for having electrically conductive aluminum sheet structure (5), this aluminum sheet structure (5) and controller chip's negative pole end switch-on, it has electrically conductive effect to set up bolt groove (6) and this bolt groove (6) and base member formation an organic whole on controller chip mounting box (3) other base member (1), bolt (7) pass aluminum sheet structure (5) and screw up in bolt groove (6), make controller chip negative pole in controller chip mounting box (3) loop through aluminum sheet structure (5), bolt (7), on bolt groove (6) intercommunication base member (1) and form ground connection.

3. The controller structure of an electric motor according to claim 1, wherein: the fixing column (8) is embedded in the base cover (2) of the output end of the conductor piece (4), the output end of the conductor piece (4) is sleeved on the fixing column (8), and an external electric wire connected with the positive pole of the controller chip is sleeved on the fixing column (8) to be connected and fixed with the conductor piece (4).

4. A controller structure of a motor according to claim 3, wherein: the upper portion of the fixed column (8) is of a threaded structure, and the nut (12) is matched with the fixed column (8) so that the conductor piece (4) sleeved on the fixed column (8) and an external electric wire are contacted stably.

5. A controller structure of a motor according to claim 3, wherein: a supporting circular plate (13) is arranged at the lower part of the fixing column (8), and the supporting circular plate (13) is wholly embedded into the base cover (2) and the upper surface is exposed.

6. The controller structure of an electric motor according to claim 5, wherein: the upper surface of the supporting circular plate (13) is higher than the upper surface of the base cover (2) around the supporting circular plate.

7. A controller structure of a motor according to claim 3, wherein: set up solid fixed ring (9) and be wrapped up by base lid (2) at fixed column (8) bottom and make solid fixed ring (9) external insulation, set up bolt hole (10) on base member (1) that corresponds with solid fixed ring (9) position, bolt (11) pass solid fixed ring (9) and are connected with bolt hole (10) cooperation, realize solid fixed ring (9) middle part and base lid (2) are fixed, its bottom is fixed and is insulated each other through bolt (11) and base member (1).

8. The controller structure of an electric motor according to claim 7, wherein: a sleeve (14) is arranged in the hollow position in the middle of the fixing ring (9), the sleeve (14) is embedded into the base cover (2) around the fixing ring (9), and the first bolt (11) penetrates through the sleeve (14) and then is matched with the bolt hole (10).

9. The controller structure of an electric motor according to claim 8, wherein: the outer surface of the sleeve (14) is provided with a sawtooth strip (15) parallel to the axis of the sleeve (14), the outer surface of the sleeve (14) is provided with a shallow groove ring (16), and the sawtooth strip (15) and the shallow groove ring (16) are mutually staggered.

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