阅读说明：本技术 一种电机控制器的接线座模组 (Wire holder module of motor controller ) 是由 张大千 李�浩 王波 徐涛涛 罗进恒 于 2021-02-02 设计创作，主要内容包括：本发明公开了一种电机控制器的接线座模组,包括塑胶的壳体、电机三相电流检测电路、电池铜排和电机三相铜排,电机三相铜排包括三根电机导流条,三根电机导流条横向分开布置,下部分别嵌入到壳体中；电机三相电流检测电路包括电流检测电路板、三个电流检测模块和检测信号输出接口；三个电流检测模块分别布置在对应的三根电机导流条中部的外周,三个电流检测模块和检测信号输出接口分别与电流检测电路板电连接。本发明可以节省电机控制器的空间、简化电机控制器的装配过程,提高电机控制器的装配效率。(The invention discloses a wire holder module of a motor controller, which comprises a plastic shell, a motor three-phase current detection circuit, a battery copper bar and a motor three-phase copper bar, wherein the motor three-phase copper bar comprises three motor guide strips, the three motor guide strips are transversely arranged in a separated manner, and the lower parts of the three motor guide strips are respectively embedded into the shell; the motor three-phase current detection circuit comprises a current detection circuit board, three current detection modules and a detection signal output interface; the three current detection modules are respectively arranged at the peripheries of the middle parts of the three corresponding motor guide strips, and the three current detection modules and the detection signal output interface are respectively electrically connected with the current detection circuit board. The invention can save the space of the motor controller, simplify the assembly process of the motor controller and improve the assembly efficiency of the motor controller.)

1. A wire holder module of a motor controller comprises a plastic shell, a battery copper bar and a motor three-phase copper bar, wherein the motor three-phase copper bar comprises three motor guide strips which are transversely arranged in a separated mode, and the lower portions of the three motor guide strips are respectively embedded into the shell; the device is characterized by comprising a motor three-phase current detection circuit, wherein the motor three-phase current detection circuit comprises a current detection circuit board, three current detection modules and a detection signal output interface; the three current detection modules are respectively arranged at the peripheries of the middle parts of the three corresponding motor guide strips, and the three current detection modules and the detection signal output interface are respectively electrically connected with the current detection circuit board.

2. The wire holder module according to claim 1, wherein the upper portion of the housing comprises a vertical plate, the current detection module comprises a hall current sensor and a U-shaped shield, and the hall current sensor is arranged on the front surface of the current detection circuit board and electrically connected with a circuit on the current detection circuit board; the current detection circuit board is fixed on the vertical plate, the back of the current detection circuit board is close to the front of the middle parts of the three motor guide strips, and the back of the three motor guide strips is close to the front of the vertical plate; the vertical plate and the current detection circuit board respectively comprise mounting holes of three groups of shielding covers, and each group of mounting holes of the vertical plate and the current detection circuit board respectively comprise two through holes; two through holes of the mounting hole group are arranged on two sides of the middle part of the corresponding motor guide strip, a bottom plate of the U-shaped shielding cover is close to the back surface of the vertical plate, and two side plates of the U-shaped shielding cover penetrate through the vertical plate and the through holes of the mounting hole group of the current detection circuit board; the Hall current sensor is arranged between the two side plates of the corresponding U-shaped shielding cover.

3. The wire holder module of claim 1, comprising a Y capacitor assembly, the Y capacitor assembly comprising a Y capacitor circuit board, two Y capacitors, two sets of connectors, and a ground ring, the two Y capacitors being mounted on the Y capacitor circuit board and electrically connected to the traces of the Y capacitor circuit board; the battery copper bar comprises a positive battery guide strip and a negative battery guide strip which are transversely arranged in a separated mode, and the lower parts of the two battery guide strips are respectively embedded into the shell; the lower parts of the two battery guide strips are respectively and electrically connected with the circuit of the Y-shaped capacitor circuit board through a group of connecting pieces.

4. The wire holder module according to claim 1, wherein the connecting member comprises a conductive long nut and two conductive screws, and the housing comprises two Y-shaped capacitor receiving holes, a ground mounting hole and two through holes for mounting the conductive long nut; the two Y capacitors are respectively embedded into the two Y capacitor bearing holes, and the conductive long nut is embedded into the through hole for mounting the conductive long nut; the first conductive screw penetrates through a connecting hole at the lower part of the battery diversion strip to be connected with the first end of the conductive long nut, and the second conductive screw penetrates through a connecting hole of the Y-shaped capacitor circuit board to be connected with the second end of the conductive long nut, so that the fixation of the Y-shaped capacitor circuit board and the electric connection of the battery diversion strip and the Y-shaped capacitor circuit board are realized; the grounding mounting hole is arranged between the two Y capacitor bearing holes and is a stepped hole and comprises a small hole serving as a grounding ring bearing hole and a large hole serving as a grounding screw mounting hole, the grounding ring is embedded into the grounding ring bearing hole and is in electrical contact with a grounding circuit of the Y capacitor circuit board, the Y capacitor circuit board comprises a grounding hole, and an inner hole of the grounding ring is coaxial with the grounding hole.

5. The wire holder module according to claim 3, wherein the lower housing portion comprises 5 cable connection chambers, the cable connection chambers comprising vertically arranged cable holes and laterally arranged connection screw mounting holes, the connection screw mounting holes being stepped holes comprising small holes as threaded holes and large holes as connection screw insertion holes; the upper end of the cable hole is communicated with the connecting screw inserting hole, and the lower ends of the motor diversion strip and the battery diversion strip, which are provided with screw holes, are respectively inserted into the bottoms of the connecting screw inserting holes of the corresponding cable connecting cavities.

6. The wire holder module according to claim 5, comprising two magnetic rings, wherein the lower portion of the housing comprises two annular grooves with lower openings, and the two magnetic rings are respectively inserted into the two annular grooves; the cable holes of the three cable connection cavities related to the motor guide strip are positioned in the inner hole of the first magnetic ring, and the cable holes of the two cable connection cavities related to the battery guide strip are positioned in the inner hole of the second magnetic ring.

7. The wire holder module according to claim 6, wherein the two magnetic rings are fixed in the annular groove by potting with a potting compound.

8. The wire holder module according to claim 1, wherein the first battery bead is wrapped around the outer circumference thereof with an insulating paper.

9. The wire holder module according to claim 1, comprising a cover opening detection switch mounted on the housing with the contacts facing outward, and a switch cable connected to the controller circuit board.

10. The wire holder module according to claim 1, wherein the battery copper bar and the motor three-phase copper bar are embedded in the plastic housing by injection molding, and the two Y capacitors are fixed in the Y capacitor bearing holes by potting with a potting adhesive.

Technical Field

The present disclosure relates to motor controllers, and particularly to a wire holder module of a motor controller.

Background

The existing motor controller is provided with a group of power input terminals and a group of power output terminals, is used for connecting a cable for the power distribution of the whole vehicle, and has magnetic rings, safety capacitors and other elements near the terminals in order to meet the performance requirements of electromagnetic compatibility; the semi-separated type is that an input copper bar conductor is integrated with an input wiring seat, an output copper bar conductor is integrated with an output wiring seat, and other parts are independent respectively.

The split type structure or the semi-split type structure has the defects that the number of parts of the controller is large, the assembly on a production line is complex, the assembly difficulty is high, the heat generated by the copper bar conductor when current passes through the copper bar conductor is too large, and an insulating heat conduction material needs to be additionally added to dissipate the heat of the copper bar conductor, so that the production cost is increased; the semi-separation type is improved over the separation type, but still has the disadvantages of the separation type.

The utility model discloses a patent number is CN 201822029709.0's utility model discloses a connection terminal module, including the connection terminal main part, be used for electrically conductive metallic conductor and be used for anti-interference part, metallic conductor and connection terminal main part integrated into one piece, anti-interference part and connection terminal main part integrated into one piece. The utility model discloses a with copper bar conductor through injection molding process and connection terminal main part integrated into one piece, adopt modes such as embedment with magnetic ring and ann rule electric capacity to set up to the connection terminal main part, make these scattered parts and connection terminal main part make up into complete connection terminal module, when participating in the assembly of machine controller, can reduce the assembly degree of difficulty, improve assembly efficiency, easily realize automated production, the embedment of magnetic ring can save the use of magnetic ring casing simultaneously, save cost; the wire holder module can be applied to a motor controller, and the manufactured motor controller is used for installing and distributing a motor and applying the motor to a new energy automobile. However, traditional machine controller adopts independent current detection circuit, needs extra occupation space, assembly process are loaded down with trivial details, and this utility model does not compromise and solves this problem.

Disclosure of Invention

The invention aims to provide a wire holder module of a motor controller, which can save the space of the motor controller and improve the assembly efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that the wire holder module of the motor controller comprises a plastic shell, a battery copper bar and a motor three-phase copper bar, wherein the motor three-phase copper bar comprises three motor guide strips which are transversely arranged in a separated mode, and the lower parts of the three motor guide strips are respectively embedded into the shell; the motor three-phase current detection circuit comprises a current detection circuit board, three current detection modules and a detection signal output interface; the three current detection modules are respectively arranged at the peripheries of the middle parts of the three corresponding motor guide strips, and the three current detection modules and the detection signal output interface are respectively electrically connected with the current detection circuit board.

In the wire holder module, the upper part of the shell comprises the vertical plate, the current detection module comprises the Hall current sensor and the U-shaped shielding case, and the Hall current sensor is arranged on the front side of the current detection circuit board and is electrically connected with a circuit on the current detection circuit board; the current detection circuit board is fixed on the vertical plate, the back of the current detection circuit board is close to the front of the middle parts of the three motor guide strips, and the back of the three motor guide strips is close to the front of the vertical plate; the vertical plate and the current detection circuit board respectively comprise mounting holes of three groups of shielding covers, and each group of mounting holes of the vertical plate and the current detection circuit board respectively comprise two through holes; two through holes of the mounting hole group are arranged on two sides of the middle part of the corresponding motor guide strip, a bottom plate of the U-shaped shielding cover is close to the back surface of the vertical plate, and two side plates of the U-shaped shielding cover penetrate through the vertical plate and the through holes of the mounting hole group of the current detection circuit board; the Hall current sensor is arranged between the two side plates of the corresponding U-shaped shielding cover.

The wiring seat module comprises a Y capacitor assembly, wherein the Y capacitor assembly comprises a Y capacitor circuit board, two Y capacitors, two groups of connecting pieces and a grounding ring, and the two Y capacitors are fixed on the Y capacitor circuit board and are electrically connected with the lines of the Y capacitor circuit board; the battery copper bar comprises a positive battery guide strip and a negative battery guide strip which are transversely arranged in a separated mode, and the lower parts of the two battery guide strips are respectively embedded into the shell; the lower parts of the two battery guide strips are respectively and electrically connected with the circuit of the Y-shaped capacitor circuit board through a group of connecting pieces.

In the wire holder module, the connecting piece comprises the conductive long nut and two conductive screws, and the shell comprises two Y-shaped capacitor bearing holes, a grounding mounting hole and two through holes for mounting the conductive long nut; the two Y capacitors are respectively embedded into the two Y capacitor bearing holes, and the conductive long nut is embedded into the through hole for mounting the conductive long nut; the first conductive screw penetrates through a connecting hole at the lower part of the battery diversion strip to be connected with the first end of the conductive long nut, and the second conductive screw penetrates through a connecting hole of the Y-shaped capacitor circuit board to be connected with the second end of the conductive long nut, so that the fixation of the Y-shaped capacitor circuit board and the electric connection of the battery diversion strip and the Y-shaped capacitor circuit board are realized; the grounding mounting hole is arranged between the two Y capacitor bearing holes and is a stepped hole and comprises a small hole serving as a grounding ring bearing hole and a large hole serving as a grounding screw mounting hole, the grounding ring is embedded into the grounding ring bearing hole and is in electrical contact with a grounding circuit of the Y capacitor circuit board, the Y capacitor circuit board comprises a grounding hole, and an inner hole of the grounding ring is coaxial with the grounding hole.

In the wire holder module, the lower part of the shell comprises 5 cable connection cavities, each cable connection cavity comprises a vertically arranged cable hole and a transversely arranged connecting screw mounting hole, and each connecting screw mounting hole is a stepped hole and comprises a small hole serving as a threaded hole and a large hole serving as a connecting screw inserting hole; the upper end of the cable hole is communicated with the connecting screw inserting hole, and the lower ends of the motor diversion strip and the battery diversion strip, which are provided with screw holes, are respectively inserted into the bottoms of the connecting screw inserting holes of the corresponding cable connecting cavities.

The wiring seat module comprises two magnetic rings, the lower part of the shell comprises two annular grooves with lower openings, and the two magnetic rings are respectively embedded into the two annular grooves; the cable holes of the three cable connection cavities related to the motor guide strip are positioned in the inner hole of the first magnetic ring, and the cable holes of the two cable connection cavities related to the battery guide strip are positioned in the inner hole of the second magnetic ring.

Above the wire holder module, two magnetic rings pass through the pouring sealant embedment to be fixed in the annular groove.

Above the wire holder module, the periphery parcel of first battery water conservancy diversion strip has insulating paper.

The connector holder module comprises a cover opening detection switch and a switch cable connected with a controller circuit board, wherein the cover opening detection switch is installed on the shell, and the contact faces outwards.

The wiring seat module, battery copper bar and motor three-phase copper bar are through moulding plastics the casing of embedding into the plastic in, two Y electric capacities pass through the pouring sealant embedment to be fixed in Y electric capacity hold hole.

The wire holder module integrates the three-phase current detection circuit of the motor, so that the space of the motor controller can be saved, the assembly process of the motor controller can be simplified, and the assembly efficiency of the motor controller can be improved.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a front view of a wire holder module of a motor controller according to an embodiment of the present invention.

Fig. 2 is a bottom view of a wire holder module of a motor controller according to an embodiment of the present invention.

Fig. 3 is a rear view of a wire holder module of a motor controller according to an embodiment of the present invention.

Fig. 4 is a sectional view a-a in fig. 1.

Fig. 5 is a left side view of a wire holder module of a motor controller according to an embodiment of the present invention.

Fig. 6 is a sectional view B-B in fig. 1.

Fig. 7 is a cross-sectional view taken along line C-C of fig. 3.

Fig. 8 is a cross-sectional view taken along line D-D in fig. 1.

Fig. 9 is a front view of a wire holder module of an embodiment of the present invention mounted on a cable.

Fig. 10 is a cross-sectional view E-E of fig. 9.

Fig. 11 is a sectional view F-F in fig. 9.

Detailed Description

The structure of the wire holder module of the motor controller of the embodiment of the invention is shown in fig. 1 to 10, and comprises a plastic shell 10, a motor three-phase current detection circuit 20, a battery copper bar 30, a motor three-phase copper bar 40, a Y capacitor assembly 50, an uncovering detection switch 01 and two magnetic rings 03.

Casing 10 plastic injection moulding, including major structure 10A and riser 11, riser 11 is located major structure 10A's top. The battery copper bar 30 and the motor three-phase copper bar 40 are embedded into the plastic shell 10 through injection molding.

The motor three-phase copper bar 40 comprises three motor guide bars 41, the three motor guide bars 41 are transversely arranged in a separated mode and are respectively a W-phase guide bar 41A, V-phase guide bar 41B and a U-phase guide bar 41C, and the lower portions of the three motor guide bars 41 are respectively embedded into the shell 10.

The motor three-phase current detection circuit 20 comprises a current detection circuit board 21, three current detection modules 20A and a detection signal output interface 24. The three current detection modules 20A are respectively arranged at the peripheries of the middle parts of the three corresponding motor guide bars 41, and the three current detection modules 20A and the detection signal output interface 24 are respectively electrically connected with the current detection circuit board 21. The current detection circuit board 21 is fixed to the vertical plate 11 by a clip 18 (or a screw).

The current detection module 20A includes a hall current sensor 22 and a U-shaped shield 23, and the hall current sensor 22 is disposed on the front surface of the current detection circuit board 21 and electrically connected to the lines on the current detection circuit board 21. The current detection circuit board 21 is fixed on the vertical plate 11, the back of the current detection circuit board 21 is close to the front of the middle part of the three motor guide strips 41, and the back of the three motor guide strips 41 is close to the front of the vertical plate 11. Riser 11 and current detection circuit board 21 include the mounting hole of three sets of shields respectively, and every group mounting hole of riser 11 includes two through-holes 111, and every group mounting hole of current detection circuit board 21 includes two through-holes 211. The two through holes 111 of the mounting hole group of the vertical plate 11 and the two through holes 211 of the mounting hole group of the current detection circuit board 21 are coaxial and are arranged on two sides of the middle part of the corresponding motor guide bar 41. The bottom plate 231 of the U-shaped shielding cover 23 is close to the back of the vertical plate 11, and the two side plates 232 of the U-shaped shielding cover 23 pass through the two through holes 111 of the mounting hole group of the vertical plate 11 and the two through holes 211 of the mounting hole group of the current detection circuit board 21. The hall current sensor 22 is disposed between the two side plates 232 of the U-shaped shielding case 23, and the U-shaped shielding case 23 can protect the hall current sensor 22 from being interfered by an external magnetic field, thereby improving the robustness of the current detection module 20A. The hall current sensor 22 may employ an MLX91208 programmable hall current sensor.

The Y capacitor assembly 50 includes a Y capacitor circuit board 51, two Y capacitors 52, two sets of connectors, and a ground ring 55, wherein the two Y capacitors 52 are fixed on the Y capacitor circuit board 51 and electrically connected to the lines of the Y capacitor circuit board 51.

The battery copper bar 30 comprises a positive battery guide strip 31, a negative battery guide strip 31, a positive battery guide strip 31A and a negative battery guide strip 31B which are transversely arranged in a separated mode, and the lower portions of the battery copper bar are respectively embedded into the main body structure 10A of the shell 10. The periphery of the positive battery guide strip 31A is wrapped with insulating paper 32 to ensure the safety requirement between the positive battery guide strip 31A and the negative battery guide strip 31B.

The lower parts of the positive electrode cell flow guide strip 31A and the negative electrode cell flow guide strip 31B are electrically connected with the circuit of the Y capacitor circuit board 51 through a set of connecting pieces respectively.

Each set of connecting members comprises a conductive long nut 53 and two conductive screws 54, and the housing 10 comprises two Y-shaped capacitor bearing holes 12, a grounding mounting hole 13 and two through holes 14 for mounting the conductive long nuts.

The two Y capacitors 52 are respectively embedded into the two Y capacitor receiving holes 12, and the two Y capacitors 52 are fixed in the Y capacitor receiving holes 12 by potting. The conductive long nut 53 is embedded in the through hole 14. The first conductive screw 54A penetrates through a connecting hole at the lower part of the battery guide bar 31 to be connected with the first end of the conductive long nut 53, and the second conductive screw 54B penetrates through a connecting hole on the Y capacitor circuit board 51 to be connected with the second end of the conductive long nut 53, so that the fixation of the Y capacitor circuit board 51 and the electric connection of the battery guide bar 31 and the Y capacitor circuit board 51 are realized. The two Y capacitors 52 are embedded in the Y capacitor bearing hole 12 of the housing 10, so that the Y capacitor bearing hole 12, the body and the Y capacitor circuit board 51 vibrate synchronously in a vibration environment, and the capacitor pins are prevented from being broken due to overlarge stress.

The ground mounting hole 13 is disposed between the two Y capacitor receiving holes 12, is a stepped hole, and includes a small hole as a ground ring receiving hole 132 and a large hole as a ground screw mounting hole 131, and the ground ring 55 is inserted into the ground ring receiving hole 132 and electrically contacts with the ground line of the Y capacitor circuit board 51. The Y-capacitor circuit board 51 has a grounding hole 511 in the middle, and the inner hole of the grounding ring 55 is coaxial with the grounding hole 511. a grounding screw (not shown) can pass through the inner hole of the grounding ring 55 and the grounding hole 511, and fix both on the threaded post of the chassis to realize grounding.

The lower portion of the housing 10 has 5 cable connection chambers, each of which includes a vertically arranged cable hole 15 and a laterally arranged connection screw mounting hole 16, and the connection screw mounting hole 16 is a stepped hole including a small hole as a screw hole 162 and a large hole as a connection screw insertion hole 161. The upper end of the cable hole 15 is communicated with the connecting screw insertion hole 161, and the lower ends of the motor guide bar 41 and the battery guide bar 31 with screw holes are respectively inserted into the bottom of the connecting screw insertion hole 161 of the corresponding cable connecting cavity.

There are two lower open-ended annular grooves 17 on casing 10 lower part, major structure 10A, and two magnetic rings 03 imbed respectively in two annular grooves 17, fix in annular grooves 17 through the embedment of casting glue 031. The motor cable holes 15A of the three cable connection chambers associated with the motor guide bar 41 are located in the inner bore of the first magnetic ring 03A, and the battery cable holes 15B of the two cable connection chambers associated with the battery guide bar 31 are located in the inner bore of the second magnetic ring 03B.

The three motor high-voltage cables 05 are respectively inserted into the connecting screw mounting holes 16 of the cable connecting cavity from the three motor cable holes 15A, and the connecting screws 07 connect the motor high-voltage cables 05 with the motor guide bars 41.

Two battery high-voltage cables 06 are respectively inserted into the connecting screw mounting holes 16 of the cable connecting cavity from the two battery cable holes 15B, and the connecting screws 08 connect the battery high-voltage cables 06 with the battery guide strips 31.

The cover opening detection switch 01 is mounted on the housing 10 with the contact facing outward. The cover opening detection switch 01 is connected with a circuit board of the controller through a switch cable 04. The cover opening detection switch 01 is matched with the controller cover plate to realize the cover opening detection function, the cover opening detection switch 01 is a microswitch and is normally open, after the wiring cover is installed, a microswitch button is pressed down by the wiring cover, and the switch is closed; the wiring cover is taken off, the microswitch button is bounced, and the switch is disconnected. The switch cable 04 transmits the cover opening detection signal to the circuit board of the controller.

The wire holder module of the motor controller of the above embodiment of the invention has the following beneficial effects:

1) the motor three-phase current detection circuit is integrated, so that the space of the motor controller can be saved, and the assembly process of the motor controller can be simplified;

2) the parts are combined into a whole in the modes of buckling, filling and sealing, bonding, fastening and the like, so that the assembly difficulty is reduced, the assembly efficiency is improved, the automatic production is easy to realize, and the production cost is reduced;

3) insulating paper is used between the positive copper bar and the negative copper bar of the battery, so that the clearance between the positive copper bar and the negative copper bar is reduced, and the safety requirement is met, thereby reducing the stray inductance of a loop;

4) the magnetic ring is directly encapsulated on the wire holder, so that a magnetic ring shell is omitted, materials and assembly cost are saved, and the vibration resistance of the magnetic ring is enhanced;

5) the uncovering detection function is integrated.