CN218831131U - High power density motor controller structure assembly - Google Patents

Abstract

The utility model discloses a high power density machine controller structure assembly, including the controller casing, the controller casing internal fixation has cooling module, cooling module has two cooling surfaces and two the cooling surface with the both ends face of controller casing is relative, two cooling surfaces of cooling module laminate respectively and have three miniwatt modules that correspond of group, and every group corresponds electricity is connected between the miniwatt module. The utility model discloses a set up cooling module between the both ends face of controller casing, laminate a plurality of miniwatt modules in two cooling surfaces of cooling module to make cooling module coolable area double, thereby can adopt the parallelly connected structure reduce cost of a plurality of miniwatt modules, reduced greatly and adopted the area that the parallelly connected scheme of miniwatt module occupy controller casing bottom, the cost is reduced still can reduce the controller volume.

Description

High power density motor controller structure assembly

Technical Field

The utility model relates to a motor control module technical field, in particular to high power density machine controller structure assembly.

Background

The motor controller is used as a key part of the electric vehicle and plays an important role in vehicle design; as the demand for smaller and lighter vehicle components has increased, the weight and size of the motor controller have become increasingly urgent.

In the existing motor controller, generally, an installation and fixed interface is arranged on a controller shell, and a power module, a capacitor, a control module, a low-voltage connector and other devices are installed on the shell; for a controller with higher heat dissipation requirement, a cooling water path is generally required to be arranged, so that the conventional motor controller is generally larger in size; for large capacity motor controllers, sometimes to save cost, two smaller power modules are connected in parallel instead of the larger power module.

The problems of the existing motor controller are as follows: the size of the controller is large, the structural arrangement of parts is not compact enough, and the space utilization rate in the controller is low; for a large-capacity controller, the volume and the cost of a high-power module are higher, the volume and the cost of the whole controller are also improved, the number of power modules is increased by using a scheme that a power module with smaller power is connected in parallel to replace a module with larger power, although the cost is reduced, the bottom area of the motor controller is increased because the modules with smaller power are all tiled on a cooling water path arranged on the inner surface of the shell, and the volume of the motor controller is further increased.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a high power density machine controller structure assembly, the interior layout that has solved the machine controller existence that mentions in the background art is unreasonable, space utilization hangs down and leads to the great problem of volume.

In order to achieve the above purpose, the utility model provides the following technical scheme:

the high-power-density motor controller structure assembly comprises a controller shell, wherein a cooling component is fixed in the controller shell, the cooling component is provided with two cooling surfaces, the two cooling surfaces are opposite to two end surfaces of the controller shell, the two cooling surfaces of the cooling component are respectively attached with three groups of corresponding low-power modules, and the low-power modules corresponding to each group are electrically connected;

the controller is characterized in that a capacitor assembly, a control module, an input end and a low-voltage plug-in are further arranged in the controller shell, the capacitor assembly is electrically connected with the three groups of low-power modules, the input end is electrically connected with the capacitor assembly, and the low-voltage plug-in is electrically connected with the control module.

Preferably, a connector is arranged on the capacitor assembly, and the low-power module is electrically connected to the capacitor assembly through the connector.

Preferably, a wire holder is arranged in the controller housing, the input end is mounted on the wire holder, an interface is arranged on the capacitor assembly, the input end is electrically connected with the interface of the capacitor assembly, and the end of the input end, which is far away from the interface of the capacitor assembly, penetrates out of the controller housing.

Preferably, the controller housing sidewall is open and secures the low pressure insert.

Preferably, the controller casing comprises a casing frame connected end to end, and an upper cover and a lower cover connected to the upper end face and the lower end face of the casing frame, and the cooling surface of the cooling assembly is parallel to the upper cover or the lower cover.

Preferably, each group of corresponding low-power modules are connected through a conductive copper bar.

Preferably, the cooling surface of the cooling assembly is attached to the low-power module through an insulating heat-conducting member.

Preferably, the cooling assembly includes a cooling water channel, and a water inlet and a water outlet connected to both ends of the cooling water channel.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

1. the utility model discloses a set up the cooling module between the both ends face of controller casing, laminate a plurality of miniwatt modules in two cooling surfaces of cooling module, thereby make the cooling module can cool off the area and double, thereby can adopt the parallelly connected structure reduction cost of a plurality of miniwatt modules, reduced the area that adopts the parallelly connected scheme of miniwatt module to occupy the controller casing bottom greatly, the cost is reduced, still can reduce the controller volume;

2. the utility model has the advantages that the capacitor component is connected with the low-power module through the joint, and the capacitor component and the input end are connected through the interface, thereby reducing wiring, enabling the assembly of the motor controller to be quicker, the structure to be more compact and the connection stability to be more excellent; meanwhile, each part is matched with the structure of the controller shell through the profiling design, so that the space utilization rate inside the controller is further improved, and the size of the motor controller is reduced.

Drawings

Fig. 1 is a schematic diagram of an explosion structure of an embodiment of the present invention;

fig. 2 is a schematic sectional view of a front view structure according to an embodiment of the present invention.

In the figure: 1. a housing frame; 2. a lower cover; 3. an upper cover; 4. a capacitive component; 5. a first power module; 6. a second power module; 7. a cooling assembly; 8. a conductive copper bar; 9. a first manipulation module; 10. a second manipulation module; 11. a low-voltage plug-in; 12. an input end; 13. a wire holder; 14. a motor;

701. a water inlet; 702. and (7) a water outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and 2, the embodiment of the utility model discloses high power density machine controller structure assembly, including the controller casing, be fixed with cooling module 7 in the controller casing, cooling module 7 has two cooling surfaces and two cooling surfaces are relative with the both ends face of controller casing, and two cooling surfaces of cooling module 7 are laminated respectively and are had three miniwatt modules that correspond of group, and the electricity is connected between the miniwatt module that every group corresponds.

Specifically, referring to fig. 1, the controller housing includes a housing frame 1 connected end to end and an upper cover 3 and a lower cover 2 connected to the upper and lower end surfaces of the housing frame, the upper cover and the lower cover 2 are arranged in parallel, the cooling assembly 7 is located between the upper cover 3 and the lower cover 2 in the controller housing, and the cooling surface of the cooling assembly is parallel to the upper cover 3 (i.e., parallel to the lower cover 2). The setting in cooling water route among the prior art is at a terminal surface that often laminates in the controller casing to when cooling down power component, can only set up power component in the one side in cooling water route, and the utility model discloses then set up cooling component 7 at the intermediate position of controller casing, then two cooling surfaces of cooling component 7 all can cool off power component, consequently the utility model discloses a three miniwatt modules that correspond of group connect in parallel between the miniwatt module of every group, bore on the lower cover 2 of controller casing and establish three holes, three parallelly connected miniwatt modules of three groups correspond through cable junction with the three-phase of motor 14. In this embodiment, the number of the small power modules is six, the three first power modules 5 are respectively arranged on the front surface of the cooling assembly 7, the three second power modules 6 are respectively arranged on the back surface of the cooling assembly 7, each first power module 5 is connected with one second power module 6, of course, the small power modules of each group can be arranged more as required, and only the small power modules of each group are required to be connected in parallel.

Exemplarily, the first power module 5 and the second power module 6 of the present embodiment are connected by a copper busbar 8, and the copper busbar 8 is correspondingly connected to a three-phase cable of the motor.

Specifically, referring to fig. 2, the cooling module 7 includes a cooling water channel, and a water inlet 701 and a water outlet 702 connected to two ends of the cooling water channel, two openings are respectively disposed on the side surfaces of the controller housing, the water inlet 701 and the water outlet 702 of the cooling module 7 are fixed to the openings, and the transmission of cooling substances is realized through the water inlet 701 and the water outlet 702, so as to absorb heat and cool the low-power module. For example, the substance used for cooling in the cooling module 7 may be cooling water, or may be a substance such as cooling oil, and it is only necessary to perform heat exchange to cool the low-power module.

Preferably, in order to improve the heat transfer efficiency between cooling module 7 and the miniwatt module, the utility model discloses a closely laminate through insulating heat-conducting piece between cooling module 7's the cooling surface and the miniwatt module, utilize insulating heat-conducting piece can be with the heat quick transfer of miniwatt module to cooling module 7's cooling surface. Illustratively, the insulating heat conducting member is made of heat conducting silicone grease, heat conducting silicone sheet, heat conducting glue, or the like.

The controller shell is also internally provided with a capacitor assembly 4, an operation and control module, an input end 12 and a low-voltage plug-in 13, wherein the capacitor assembly 4 is electrically connected with the three groups of low-power modules, the input end 12 is electrically connected with the capacitor assembly 4, and the low-voltage plug-in 13 is electrically connected with the operation and control module.

Further, a connector is provided on the capacitor assembly 4, and the low power module is electrically connected to the capacitor assembly 4 through the plug-in connector. By reserving the connector in advance on the capacitor assembly 4, the assembly of the low-power module and the capacitor assembly is faster.

Furthermore, a wiring seat 13 is arranged in the controller shell, two through holes are formed in the side face of the controller shell, the input end 12 is installed on the wiring seat 13, positive and negative plugs of the input end 12 penetrate through the through holes to be located on the outer side of the controller shell, an interface is arranged on the capacitor assembly 4, and the input end 12 is electrically connected with the interface of the capacitor assembly 4. The utility model discloses a with input end 12 and capacitor assembly 4's connection position fixed mounting in connection terminal 13 for input end 12 and capacitor assembly 4's connection is more firm.

Further, the side wall of the controller shell of the utility model is opened and fixed with the low-voltage plug-in 13. The control module of the present embodiment includes a first control module 9 and a second control module 10, and the low voltage plug-in 13 is electrically connected to the first control module 9 and the second control module 10, respectively. Illustratively, the low voltage package 13 may be a pin configuration.

The capacitor assembly 4 is connected with high-voltage direct current through the input end 12, converts a high-voltage direct current electric signal into an alternating current signal through the low-power module to control the motor 14 to work, and the low-voltage plug-in 13 is connected with low-voltage direct current to supply power for low-voltage control components such as the control module.

When 14 moves of motor, the direct current passes through the utility model discloses a motor controller input access controller becomes three-phase alternating current with the direct current transformation through the controller, and the three-phase cable junction of controller output and motor 14 realizes motor controller to motor 14's control.

The utility model discloses a profile modeling design is carried out to controller casing shape and inside each part shape to make overall arrangement compacter between controller casing shape and inside each part structure. For example, referring to the structure of this embodiment, chamfering processing is performed at two pairs of angular positions of the controller housing, one chamfering position is provided with the capacitor assembly 4, the capacitor assembly 4 also performs corresponding chamfering processing, the other chamfering position is provided with the corresponding first control module 9 for chamfering processing, the edge side of the first control module is provided with the low-voltage plug-in 13, and the second control module 10 is vertically arranged between the low-voltage plug-in 13 and the cooling assembly, so that the bottom area of the controller is reduced, and further the size of the motor controller is reduced.

To sum up, the utility model discloses a machine controller structure assembly specifically has following advantage:

1. part of parts of the utility model are adapted to the shell structure of the controller through the profiling design, so that the utilization rate of the internal space of the motor controller is high, and the volume of the controller is reduced;

2. compared with a large-capacity motor controller, the scheme that two low-power modules are connected in parallel to replace a high-power module is adopted, so that the cost is reduced; moreover, the small-power modules are arranged on the two cooling surfaces of the cooling assembly, so that the utilization rate of the surface area of the cooling water path is increased, and the area of the cooling assembly and the area of the bottom of the controller are reduced;

3. the vertical space in the motor controller is reasonably utilized, so that the structure of parts of the motor controller is compact, the space utilization rate in the controller is high, and the size of the controller is further reduced.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The high-power-density motor controller structure assembly is characterized by comprising a controller shell, wherein a cooling component is fixed in the controller shell, the cooling component is provided with two cooling surfaces, the two cooling surfaces are opposite to two end surfaces of the controller shell, the two cooling surfaces of the cooling component are respectively attached with three groups of corresponding low-power modules, and the low-power modules corresponding to each group are electrically connected;

the controller comprises a controller shell and is characterized in that a capacitor assembly, a control module, an input end and a low-voltage plug-in are further arranged in the controller shell, the capacitor assembly is electrically connected with the three groups of low-power modules, the input end is electrically connected with the capacitor assembly, and the low-voltage plug-in is electrically connected with the control module.

2. The machine controller structure assembly of claim 1, wherein the capacitor assembly has a connector, and the low power module is electrically connected to the capacitor assembly through the connector.

3. The motor controller structure assembly according to claim 1, wherein a wire holder is disposed in the controller housing, the input terminal is mounted on the wire holder, an interface is disposed on the capacitor assembly, the input terminal is electrically connected to the interface of the capacitor assembly, and an end of the input terminal far away from the interface of the capacitor assembly passes through the controller housing.

4. The machine controller structure assembly of claim 1, wherein the controller housing sidewall is open and secures the low voltage insert.

5. The machine controller structure assembly of claim 1, wherein the controller housing comprises a housing frame connected end to end and an upper cover and a lower cover connected to the upper and lower end surfaces of the housing frame, and the cooling surface of the cooling component is parallel to the upper cover or the lower cover.

6. The machine-controller structure assembly of claim 1, wherein each set of corresponding low-power modules is connected to each other by a conductive copper bar.

7. The motor controller structure assembly according to claim 1, wherein the cooling surface of the cooling component is attached to the low power module by an insulating heat conducting member.

8. The machine controller structure assembly of claim 1, wherein the cooling assembly includes a cooling water channel and a water inlet and a water outlet connected to both ends of the cooling water channel.

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