CN214315853U

CN214315853U - High-voltage interlocking device of motor controller

Info

Publication number: CN214315853U
Application number: CN202120251249.5U
Authority: CN
Inventors: 李云; 温敬召; 任康乐; 高亚运; 陈尧
Original assignee: Leadrive Technology Shanghai Co Ltd
Current assignee: Leadrive Technology Shanghai Co Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-09-28
Anticipated expiration: 2031-01-28

Abstract

The embodiment of the disclosure provides a high-voltage interlocking device of a motor controller, which belongs to the technical field of new energy automobiles and specifically comprises an upper cover plate of the motor controller, a conductive piece and a PCB control plate, wherein the conductive piece is installed on the inner side of the upper cover plate of the motor controller, and the PCB control plate is connected with two mutually independent conductive blocks, so that when the upper cover plate of the motor controller is closed, the conductive piece is in contact with the two conductive blocks and then is electrically connected, and the two conductive blocks form electrical connection through the conductive piece. Through the processing scheme disclosed by the invention, the motor controller meets the requirements of light weight and compactness of new energy automobile products, the overall production cost of the motor controller is reduced, and the assembly efficiency of the products is improved.

Description

High-voltage interlocking device of motor controller

Technical Field

The utility model relates to a new energy automobile's technical field especially relates to a machine controller high pressure interlock.

Background

Along with the rapid development of new energy automobiles, increasingly stringent requirements are put on the light weight, integration and cost reduction of the whole automobile. The motor controller is used as an important component of an electric drive system of a new energy automobile, and the light weight, the miniaturization and the high reliability of the motor controller are important for the performance of a whole automobile system. There is high pressure during machine controller operation, has certain potential safety hazard, for example the maintenance operation of uncapping can cause the electric shock under the on-load state, causes the casualties, consequently needs to design a high-pressure interlock in order to realize high-pressure safety protection urgently. Generally, the high-voltage safety protection of the motor controller mostly adopts the installation of electrical equipment such as a proximity switch and the like to realize electrical interlocking.

Aiming at the related technologies, the inventor thinks that the traditional uncapping protection high-voltage interlocking device needs to be connected with a wire harness, has high installation precision requirement and relatively low space utilization rate, and is difficult to meet the requirements of flexibility, light weight and integration of an electric drive system.

Disclosure of Invention

In view of this, the embodiment of the present disclosure provides a high-voltage interlocking device for a motor controller, which solves the problem that the high-voltage interlocking device for protecting by uncovering is difficult to meet the requirements of flexibility, light weight and integration of an electric drive system.

The application provides a motor controller high pressure interlock adopts following technical scheme:

the utility model provides a motor controller high pressure interlock, includes motor controller upper cover plate, electrically conductive piece and PCB control panel, electrically conductive piece is installed at motor controller upper cover plate inboard, be connected with two conducting blocks of mutually independent on the PCB control panel, so that when motor controller upper cover plate was closed, electrically connected after electrically conductive piece and two conducting blocks contact, two conducting blocks formed electric connection through electrically conductive piece.

By adopting the technical scheme, after the upper cover plate of the motor controller is closed, the conductive piece is connected with the two conductive blocks, the battery manager in the motor controller sends a signal to one conductive block through the PCB control panel, the signal passes through the conductive piece through one conductive block and then reaches the other conductive block, and then the signal returns to the battery manager through the PCB control panel; when the upper cover plate of the motor controller is opened, the upper cover plate of the motor controller drives the conductive piece to be far away from the conductive block, the conductive piece is separated from the conductive block, and a loop among the conductive piece, the conductive block and the battery manager is disconnected. The battery manager receives the signal and indicates that the upper cover plate of the motor controller is in a normal closed state; if the battery manager does not receive the signal, the conductive parts are not simultaneously connected with the two conductive blocks to be electrified, the motor controller upper cover plate is opened, and the battery manager outputs the signal and disconnects all high-voltage equipment, so that the cover opening protection purpose is achieved. This application can improve machine controller inner space utilization to a great extent, reduces whole high-pressure interlocking structure size to satisfy the demand of new energy automobile product lightweight, compactness. Moreover, the problem that traditional pencil connection is spacing fixed insecure has been overcome in this application, carries out the simplification to high-pressure interlocking structure and handles, and the holistic manufacturing cost of greatly reduced machine controller has improved the assembly efficiency of product.

Optionally, the conductive piece includes a conductive rod and a conductive pin, the conductive rod is fixedly connected with the inner side of the upper cover plate of the motor controller, the conductive pins are fixedly connected to both ends of the conductive rod, when the upper cover plate of the motor controller is closed, one of the conductive pins is electrically connected to one of the two conductive blocks after contacting, and the other conductive pin is electrically connected to the other of the two conductive blocks after contacting.

By adopting the technical scheme, when the upper cover plate of the motor controller is closed, the conducting rod fixed on the upper cover plate of the motor controller drives the two conducting pins to approach the PCB control plate, so that the two conducting pins are respectively connected with one conducting block, and a signal sent by the battery manager passes through one conducting block, one conducting pin and the conducting rod to reach the other conducting block and the other conducting pin and then returns to the battery manager; when the upper cover plate of the motor controller is opened, the upper cover plate of the motor controller drives the conductive pins to be far away from the conductive blocks, the conductive pins are separated from the conductive blocks, and the two conductive blocks do not form a loop any longer. When the upper cover plate of the motor controller is closed, the battery manager can receive signals. When the battery manager cannot receive the returned signal, the fact that a loop is not formed between the two conductive blocks is indicated, the conductive pins are separated from the conductive blocks, and the upper cover plate of the motor controller is in an open state, so that all high-voltage equipment is disconnected.

Optionally, the conductive piece is a conductive plate, the conductive plate is fixedly connected with the inner side of the upper cover plate of the motor controller, two conductive pins are fixedly connected to the conductive blocks, and when the upper cover plate of the motor controller is closed, the two conductive pins are electrically connected with the conductive plate after being contacted.

Through adopting above-mentioned technical scheme, the conducting pin is fixed on the conducting block, and the conducting plate is close to the conducting pin along with the closure of motor controller upper cover plate, and until the conducting plate is connected with the conducting pin, two conducting plates on the PCB control panel are connected with the conducting plate through the conducting pin and are formed the return circuit, and the signal that the battery manager sent can get back to on another conducting block through a conducting block, then get back to the battery manager. When the upper cover plate of the motor controller is opened, the current-conducting plate is far away from the current-conducting needle, the current-conducting plate is separated from the current-conducting needle, and a loop cannot be formed between the two current-conducting blocks. When the battery manager cannot receive the returned signal, the fact that a loop is not formed between the two conductive blocks is indicated, the conductive pins are not in contact with the conductive plates, the upper cover plate of the motor controller is in an open state, and all high-voltage equipment is disconnected.

Optionally, the conductive piece further comprises a conductive spring, the two ends of the conductive rod are both provided with the conductive spring, one end of the conductive spring is fixedly connected with the conductive rod, the other end of the conductive spring is fixedly connected with the conductive pin, and when the upper cover plate of the motor controller is closed, the conductive spring is in a compressed state.

Through adopting above-mentioned technical scheme, when the motor controller upper cover plate was closed, conductive spring was in compression state, when the vehicle went in-process vibration, motor controller upper cover plate when the relative PCB control of motor controller took place slight relative displacement, the conductive pin still can be stably formed the butt with the conducting block under the effect of conductive spring elasticity, made the vehicle at the normal in-process that traveles, two conducting blocks were in the return circuit. The stability of the motor control high-voltage interlocking device is improved.

Optionally, the conductive needle is sleeved with a sleeve, the conductive needle slides in the sleeve along the axial direction of the conductive needle, and the sleeve is fixedly connected with the conductive rod.

Through adopting above-mentioned technical scheme, the sleeve can be stabilized the conductive pin and along with the flexible displacement of in-process of conductive spring, reduces because conductive spring buckles and leads to the condition that conductive pin deviates from the conducting block, improves motor control high-pressure interlock's stability.

Optionally, the periphery of the conductive spring is sleeved with a protective cylinder, and the protective cylinder and the sleeve are integrally arranged.

Through adopting above-mentioned technical scheme, a protection section of thick bamboo includes conductive spring, reduces the foreign matter that gets into conductive spring, reduces the circumstances that conductive spring is stuck, stabilizes conductive spring's flexible effect, improves motor control high pressure interlock's stability.

Optionally, a conductive limiting block is connected to the end face of the conductive pin far away from one end of the conductive rod, and an outer ring of the conductive limiting block is larger than an inner ring of the sleeve.

Through adopting above-mentioned technical scheme, the setting of electrically conductive stopper can restrict the displacement of electrically conductive needle, reduces the condition of electrically conductive needle terminal surface card at the sleeve inner wall, stabilizes the normal flexible of electrically conductive needle, improves motor control high pressure interlock's stability.

Optionally, the motor controller further comprises an insulating base, the insulating base is fixedly connected with the inner side of the upper cover plate of the motor controller, and the conductive piece is installed on the inner side of the upper cover plate of the motor controller through the insulating base.

Through adopting above-mentioned technical scheme, insulating seat separates electrically conductive piece and machine controller upper cover plate, reduces the electrified condition of machine controller upper cover plate, and the condition that personnel contact machine controller upper cover plate emergence electrocuted takes place to reduce takes place, improve equipment's security.

To sum up, the application comprises the following beneficial technical effects:

when the upper cover plate of the motor controller is closed, the two conductive blocks on the PCB control panel form a loop through the conductive pieces, so that the battery controller can receive signals, when the battery controller cannot receive the signals, the conductive pieces are separated from the two conductive blocks, the upper cover plate of the motor controller is opened, and the battery manager outputs signals and disconnects all high-voltage equipment, so that the cover opening protection purpose is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a first embodiment of a high-voltage interlock device of a motor controller according to the present application;

FIG. 2 is a schematic view of a connection structure of a conductive pin and a conductive rod according to the present application;

fig. 3 is a schematic structural diagram of a second embodiment of the high-voltage interlock device of the motor controller according to the present application.

Description of reference numerals: 1. an upper cover plate of the motor controller; 2. a conductive member; 21. a conductive rod; 22. a conductive pin; 23. a conductive plate; 3. a PCB control board; 4. a conductive block; 5. a conductive spring; 6. a sleeve; 7. a protective cylinder; 8. a conductive limiting block; 9. an insulating seat.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.

Example one

As shown in fig. 1 and 2, a high-voltage interlocking device for a motor controller comprises a motor controller upper cover plate 1, a conductive piece 2 and a PCB control plate 3, wherein the conductive piece 2 is installed on the inner side of the motor controller upper cover plate 1, the PCB control plate 3 is connected with two conductive blocks 4 which are independent of each other, and the conductive blocks 4 are made of copper materials and can be made of other metal materials in other embodiments. The conductive blocks 4 are brazed on the PCB control board 3, the two conductive blocks 4 are electrically connected with a battery manager of the motor controller, and the two conductive blocks 4 are respectively connected with two electrical signals; the PCB control board 3 is fixed in the motor controller through bolts, when the upper cover plate 1 of the motor controller is closed, the conductive piece 2 is electrically connected with the two conductive blocks 4 after contacting, and the conductive piece 2, the conductive blocks 4 and the battery manager form a closed loop; when the upper cover plate 1 of the motor controller is opened, the conductive blocks 4 are separated from the two conductive blocks 4, and the conductive pieces 2, the conductive blocks 4 and the circuit of the battery manager are disconnected.

The conductive member 2 includes a conductive rod 21 and a conductive pin 22, the conductive rod 21 and the conductive pin 22 are both made of copper, and in other embodiments, the conductive rod 21 and the conductive pin 22 may also be made of other metal materials. The conducting rod 21 is fixedly connected with the inner side of the upper cover plate 1 of the motor controller, the two ends of the conducting rod 21 are fixedly connected with conducting pins 22, when the upper cover plate 1 of the motor controller is closed, one conducting pin 22 is electrically connected with one of the two conducting blocks 4 after being contacted, the other conducting pin 22 is electrically connected with the other conducting block 4 after being contacted, and the two conducting blocks 4 form a closed loop; when the upper cover plate 1 of the motor controller is opened, the conductive pins 22 are separated from the conductive blocks 4, and the loops of the two conductive blocks 4 are disconnected.

The conductive member 2 further includes a conductive spring 5, the conductive spring 5 is made of copper, and in other embodiments, the conductive spring 5 may also be made of other metal materials. The two ends of the conducting rod 21 are both provided with conducting springs 5, one end of each conducting spring 5 is welded with the conducting rod 21, the other end of each conducting spring 5 is welded with the conducting pin 22, when the upper cover plate 1 of the motor controller is closed, the conducting springs 5 are in a compressed state, and the conducting pins 22 are tightly abutted to the conducting blocks 4 under the elastic force of the springs.

The periphery of the conductive needle 22 is sleeved with a sleeve 6, the conductive needle 22 slides in the sleeve 6 along the axial direction of the conductive needle 22, the side wall of the conductive needle 22 is attached to the inner wall of the sleeve 6, and the sleeve 6 is fixedly connected with the conductive rod 21.

The periphery of the conductive spring 5 is sleeved with a protective cylinder 7, and the protective cylinder 7 and the sleeve 6 are integrally arranged. One end of the protective cylinder 7 far away from the sleeve 6 is welded on the conducting rod 21, and the sleeve 6 is fixed on the conducting rod 21 through the protective cylinder 7.

The end face of the conductive needle 22 far away from one end of the conductive rod 21 is integrally provided with a conductive limiting block 8, the conductive limiting block 8 and the conductive needle 22 are integrally formed, and the outer ring of the conductive limiting block 8 is larger than the inner ring of the sleeve 6.

The high-voltage interlocking device of the motor controller further comprises an insulating base 9, the insulating base 9 is fixedly connected with the inner side of the upper cover plate 1 of the motor controller, the insulating base 9 is made of plastic, the insulating base 9 and the upper cover plate 1 of the motor controller are fixedly riveted through screws, the conductive piece 2 is installed on the inner side of the upper cover plate 1 of the motor controller through the insulating base 9, and the conductive rod 21 and the insulating base 9 are integrally injection-molded with the insulating base 9 in an insert mode.

The principle of the embodiment of the present embodiment is as follows: when the upper cover plate 1 of the motor controller is closed, the conducting rod 21 fixed on the upper cover plate 1 of the motor controller drives the two conducting pins 22 to approach the PCB control plate 3, the conducting spring 5 is compressed after the two conducting pins 22 are stressed, the length of the conducting pin 22 extending out of the sleeve 6 is automatically adjusted, the two conducting pins 22 are respectively connected with one conducting block 4 under the action of the conducting spring 5, a signal sent by the battery manager passes through one conducting block 4, one conducting pin 22 and the conducting rod 21 to reach the other conducting block 4 and the other conducting pin 22, and then returns to the battery manager, so that when the upper cover plate 1 of the motor controller is closed, the battery manager can receive the signal. When the battery manager cannot receive the returned signal, the situation that a loop is not formed between the two conductive blocks 4 is shown, the conductive pin 22 is separated from the conductive blocks 4, and the upper cover plate 1 of the motor controller is in an open state, so that all high-voltage equipment is disconnected.

Example two

As shown in fig. 3, the difference between the first embodiment and the second embodiment is that the conductive member 2 is a conductive plate 23, the conductive plate 23 is a copper plate, the conductive plate 23 is fixedly connected with the inner side of the upper cover plate 1 of the motor controller, a plastic plate is arranged between the conductive plate 23 and the upper cover plate 1 of the motor controller, the conductive plate 23 and the plastic plate are fixed on the upper cover plate 1 of the motor controller in a riveted manner by screws, conductive pins 22 are welded on two conductive blocks 4 on the PCB control board 3, the length direction of the conductive pins 22 is perpendicular to the PCB control board 3, the conductive pins 22 extend from the conductive blocks 4 to one side of the conductive plate 23, when the upper cover plate 1 of the motor controller is closed, the two conductive pins 22 are electrically connected with the conductive plate 23 after contacting, and a closed loop is formed between the two conductive blocks 4; when the upper cover plate 1 of the motor controller is opened, the conductive plate 23 is separated from the conductive pin 22, and a loop between the two conductive blocks 4 is disconnected.

The principle of the embodiment of the present embodiment is as follows: the conductive pins 22 are fixed on the conductive blocks 4, the conductive plates 23 approach to the conductive pins 22 along with the closing of the upper cover plate 1 of the motor controller until the conductive plates 23 are connected with the conductive pins 22, the two conductive plates 23 on the PCB control board 3 are connected with the conductive plates 23 through the conductive pins 22 to form a loop, and a signal sent by the battery manager can return to another conductive block 4 through one conductive block 4 and then return to the battery manager. When the battery manager cannot receive the returned signal, the circuit is not formed between the two conductive blocks 4, the conductive pin 22 is not contacted with the conductive plate 23, and the upper cover plate 1 of the motor controller is in an open state, so that all high-voltage equipment is disconnected.

The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A motor controller high pressure interlock which characterized in that: the motor controller comprises a motor controller upper cover plate, a conductive piece and a PCB control plate, wherein the conductive piece is installed on the inner side of the motor controller upper cover plate, and two conductive blocks which are mutually independent are connected to the PCB control plate, so that when the motor controller upper cover plate is closed, the conductive piece is in electric connection with the two conductive blocks after being contacted, and the two conductive blocks form electric connection through the conductive piece.

2. The motor controller high voltage interlock of claim 1, wherein: the conductive piece comprises a conductive rod and a conductive pin, the conductive rod is fixedly connected with the inner side of the upper cover plate of the motor controller, the conductive pins are fixedly connected to two ends of the conductive rod, when the upper cover plate of the motor controller is closed, one of the conductive pins is electrically connected with one of the two conductive blocks after being contacted, and the other conductive pin is electrically connected with the other conductive block after being contacted.

3. The motor controller high voltage interlock of claim 1, wherein: the electric conduction piece is an electric conduction plate, the electric conduction plate is fixedly connected with the inner side of the upper cover plate of the motor controller, the electric conduction pins are fixedly connected to the electric conduction blocks, and when the upper cover plate of the motor controller is closed, the two electric conduction pins are electrically connected with the electric conduction plate after being contacted.

4. The motor controller high voltage interlock of claim 2, wherein: the conductive piece further comprises a conductive spring, the two ends of the conductive rod are respectively provided with the conductive spring, one end of the conductive spring is fixedly connected with the conductive rod, the other end of the conductive spring is fixedly connected with the conductive needle, and when the upper cover plate of the motor controller is closed, the conductive spring is in a compressed state.

5. The motor controller high voltage interlock of claim 4, wherein: the conductive needle periphery cover is equipped with the sleeve, the conductive needle slides along the axis direction of conductive needle in the sleeve, sleeve and conducting rod fixed connection.

6. The motor controller high voltage interlock of claim 5, wherein: the periphery of the conductive spring is sleeved with a protective cylinder, and the protective cylinder and the sleeve are integrally arranged.

7. The motor controller high voltage interlock of claim 5, wherein: the end face, far away from one end of the conductive rod, of the conductive needle is connected with a conductive limiting block, and the outer ring of the conductive limiting block is larger than the inner ring of the sleeve.

8. The motor controller high voltage interlock of claim 1, wherein: the motor controller is characterized by further comprising an insulating seat, the insulating seat is fixedly connected with the inner side of the upper cover plate of the motor controller, and the conductive piece is installed on the inner side of the upper cover plate of the motor controller through the insulating seat.