CN208723821U - A kind of AC motor control and its bus - Google Patents

Abstract

The utility model provides a kind of AC motor control and its bus, the bus includes the first busbar (4) and the second busbar (6), first busbar (4) includes the positive copper bar, cathode copper bar and AC copper-line being stacked, generally with the Yi shape of right-angle bending, the bending part on top has columnar first pin being welded to connect with the pin of transistor (3), the bending part of bottom end has the second pin (42) of en plaque, and second pin (42) offers the first mounting hole；Second busbar (6) is platysome, the lower surface of the bending part of the bottom end of first busbar (4) is attached in the plate face of the second busbar (6), and the second busbar (6) offers the second mounting hole (61) corresponding with the first mounting hole.The manufacture difficulty of AC motor control can be made to reduce using bus provided by the utility model, and entirety will not be caused to scrap because individual devices damage, so as to effectively improve producing efficiency and yields.

Description

A kind of AC motor control and its bus

Technical field

The utility model relates to electric machine controller technical fields, more particularly to a kind of AC motor control and its mother Line.

Background technique

In current AC motor control, capacitor, IGBT (insulated gate bipolar transistor), AC copper-line and direct current copper The devices such as row are all made of welding manner and are connected on laminated bus, since pad is more, so production larger workload, and And capacitor pin is connected by welding manner, is caused capacitor that can not dismantle, even if being only some device failure, be will also result in whole Body is scrapped.Therefore, how AC motor control is improved, to reduce manufacture difficulty, becomes those skilled in the art and urgently solve Certainly the technical issues of.

Utility model content

In view of this, the present invention provides a kind of AC motor control and its buses, can be made using the bus The manufacture difficulty of AC motor control reduces, and entirety will not be caused to scrap because individual devices damage, so as to have Improve producing efficiency and yields in effect ground.

In order to achieve the above object, the utility model provides the following technical solutions:

A kind of bus of AC motor control, comprising:

First busbar, first busbar include the positive copper bar, cathode copper bar and AC copper-line being stacked, generally Yi shape with right-angle bending, the bending part on top have columnar first pin being welded to connect with the pin of transistor, bottom The bending part at end has the second pin of en plaque, and the second pin offers the first mounting hole, and the bending part on top with The height of vertical portion between the bending part of bottom end is consistent with the height of the transistor；

Second busbar, second busbar are platysome, and the lower surface of the bending part of the bottom end of first busbar is attached to In the plate face of second busbar, and second busbar offers the second mounting hole corresponding with first mounting hole, institute State the pin tie point that the second mounting hole is second busbar.

Preferably, multiple first busbars are provided in above-mentioned bus, on second busbar, multiple described first The arragement direction of busbar is parallel with the extending direction of bending part of first busbar.

Preferably, in above-mentioned bus, the quantity of first busbar is 3~6.

A kind of AC motor control, including capacitor, transistor and bus, the bus by such as above-mentioned any one public affairs The bus opened；

The transistor is located at the underface of the bending part on the top of first busbar；

The capacitor is cuboid, and positioned at the underface of the transistor, the top of the capacitor has to described the The capacitor pin that the bending part of the bottom end of one busbar extends, the capacitor pin are en plaque, and are offered and second peace The corresponding third mounting hole in hole is filled, the upper surface of the capacitor pin is attached to relatively described first busbar of second busbar In another lateral plates, and the bus and the capacitor are by passing through first mounting hole, second mounting hole and described the The bolt of three mounting holes is fixedly connected.

Preferably, in above-mentioned AC motor control, the lower surface of the capacitor pin is provided with embedded nut.

Preferably, in above-mentioned AC motor control, the AC copper-line is located at the separate described of first busbar The side of transistor.

Preferably, in above-mentioned AC motor control, the quantity of the capacitor is multiple, the arrangement of multiple capacitors Direction is parallel with the extending direction of the capacitor pin, and two capacitive insulations of arbitrary neighborhood weld together.

Preferably, in above-mentioned AC motor control, the transistor is insulated gate bipolar transistor.

According to the above technical scheme it is found that in AC motor control provided by the utility model, bus includes first female Row and the second busbar, the first pin of the first busbar and the pin of transistor are welded to connect, such first busbar and transistor one Rise and constitute transistor component, meanwhile, the second pin of the first busbar offers the first mounting hole, and the second busbar with open up the Two mounting holes are as pin tie point, also, capacitor offers third mounting hole on capacitor pin, and such bus and capacitor exist It can be fixedly connected by passing through the first mounting hole, the second mounting hole with the bolt of third mounting hole when assembling, so just be can be reduced The welding workload of complete machine reduces manufacture difficulty, to be conducive to improve producing efficiency.In addition, making crystal using the bus Tube assembly can be dismantled with capacitor, and being just able to achieve core component in this way can safeguard, avoid causing entirety because individual devices damage It scraps, to be conducive to improve yields.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is the schematic diagram of capacitor in AC motor control provided by the embodiment of the utility model；

Fig. 2 is the schematic diagram of transistor component in AC motor control provided by the embodiment of the utility model；

Fig. 3 is the schematic diagram of AC motor control provided by the embodiment of the utility model；

Fig. 4 is the schematic diagram of the capacitor array of capacitor composition as shown in Figure 1；

Fig. 5 is schematic diagram when AC motor control provided by the embodiment of the utility model uses capacitor array；

Fig. 6 is the front view of Fig. 5.

In the figure, it is marked as

1, capacitor；11, capacitor pin；2, water-cooled plate；3, transistor；31, transistor legs；4, the first busbar；41, first Pin；42, second pin；5, bolt；6, the second busbar；61, the second mounting hole；62, converge connecting hole；7, transistor component battle array Column.

Specific embodiment

In order to make it easy to understand, the utility model will be further described with reference to the accompanying drawing.

Referring to FIG. 1 to FIG. 3, Fig. 1 is the schematic diagram of capacitor in AC motor control provided by the embodiment of the utility model, Fig. 2 is the schematic diagram of transistor component in AC motor control provided by the embodiment of the utility model, and Fig. 3 is the utility model The schematic diagram for the AC motor control that embodiment provides.

Bus provided by the utility model for AC motor control includes the first busbar 4 and the second busbar 6, In, the first busbar 4 includes positive copper bar, cathode copper bar and the AC copper-line being stacked, generally the second word with right-angle bending Shape, the bending part on top have columnar first pin 41 being welded to connect with transistor legs 31, and the bending part of bottom end has The second pin 42 of en plaque, second pin 42 offer the first mounting hole, and the bending part on top and the bending part of bottom end it Between vertical portion height it is consistent with the height of transistor 3；Second busbar 6 is platysome, the bending of the bottom end of the first busbar 4 The lower surface in portion is attached in the plate face of the second busbar 6, and the second busbar 6 offers the second mounting hole corresponding with the first mounting hole 61 (see Fig. 5), the second mounting hole 61 are the pin tie point of the second busbar 6.

As shown in figure 3, transistor 3 is mounted on the two sides of water-cooled plate 2, transistor 3 is located at the bending on the top of the first busbar 4 Two bending parts of the underface in portion, the first busbar 4 are parallel to each other and are each perpendicular to the heat-transfer surface of water-cooled plate 2, the first busbar 4 Vertical portion is parallel with the heat-transfer surface of water-cooled plate 2, and the height of vertical portion is consistent with the height of transistor 3, and " consistent " refers to The bending part of the bottom end of one busbar 4 is slightly below transistor 3, is unlikely to influence to install capacitor 1 below the second busbar 6 in this way.

As shown in figures 1 and 3, capacitor 1 is cuboid, positioned at the underface of transistor 3, the top of capacitor 1 have to The capacitor pin 11 that the bending part of the bottom end of first busbar 4 extends, capacitor pin 11 are en plaque, and are offered and the second installation The corresponding third mounting hole in hole 61, the upper surface of capacitor pin 11 are attached to another side plate of opposite first busbar 4 of the second busbar 6 On face, and bus is fixedly connected with capacitor 1 by the bolt 5 for passing through the first mounting hole, the second mounting hole 61 and third mounting hole.

In AC motor control provided by the utility model, bus includes the first busbar 4 and the second busbar 6, and first is female The pin of the first pin 41 and transistor 3 of row 4 is welded to connect, and such first busbar 4 constitutes transistor group with transistor 3 together Part, meanwhile, the second pin 42 of the first busbar 4 offers the first mounting hole, and second mounting hole 61 of second busbar 6 to open up As pin tie point, also, capacitor 1 offers third mounting hole on capacitor pin 11, and such bus is being assembled with capacitor 1 When can by passing through the first mounting hole, the second mounting hole be fixedly connected with the bolt 5 of third mounting hole, so just can be reduced complete machine Welding workload, reduce manufacture difficulty, thus be conducive to improve producing efficiency.In addition, making transistor group using the bus Part can be dismantled with capacitor 1, and being just able to achieve core component in this way can safeguard, avoid causing whole report because individual devices damage It is useless, to be conducive to improve yields.

It is made into capacitor array together as shown in figure 4, multiple capacitors 1 can be come, the arragement direction and electricity of multiple capacitors 1 The extending direction for holding pin 11 is parallel, and two 1 dielectric solders of capacitor of arbitrary neighborhood are together.

When using capacitor array, the structure of AC motor control is as shown in Figure 5 and Figure 6, is provided on the second busbar 6 Multiple first busbars 4, the arragement direction of multiple first busbars 4 is parallel with the extending direction of bending part of the first busbar 4, Mei Ge Transistor 3 is mounted at one busbar 4, transistor 3 and the first busbar 4 form transistor component, and each group transistor component is another It rises and constitutes transistor component array 7.Second busbar 6 is one flat plate, and transistor component array 7 is mounted on the upper of the second busbar 6 Surface, capacitor array are mounted on the lower surface of the second busbar 6, the second mounting hole of multiple row 61 are offered on the second busbar 6, respectively with Each first busbar 4 is corresponding.Confluence connecting hole 62 is generally located on the edge of the second busbar 6, for being connected to motor control The external dc connector of device processed.

In specific practical application, the quantity of the first busbar 4 is generally 3~6, and AC copper-line is for directly output exchange Electricity can both be located at the side of the separate transistor 3 of the first busbar 4, can also be located at the close transistor 3 of the first busbar 4 Side.

Transistor 3 can be insulated gate bipolar transistor.For the ease of assembling bus and capacitor 1, can draw in capacitor Embedded nut is arranged in the lower surface of foot 11.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.A variety of modifications of embodiment will be readily apparent to those skilled in the art, it is as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, originally Utility model is not intended to be limited to embodiment illustrated herein, and is to fit to and the principles and novel features disclosed herein Consistent widest scope.

Claims (8)

1. a kind of bus of AC motor control characterized by comprising

First busbar (4), first busbar (4) include the positive copper bar, cathode copper bar and AC copper-line being stacked, whole For the Yi shape with right-angle bending, the bending part on top has be welded to connect with the pin of transistor (3) columnar first to draw Foot (41), the bending part of bottom end have the second pin (42) of en plaque, and the second pin (42) offers the first mounting hole, And the height of the vertical portion between the bending part on top and the bending part of bottom end is consistent with the height of the transistor (3)；

Second busbar (6), second busbar (6) are platysome, the lower surface of the bending part of the bottom end of first busbar (4) It is attached in the plate face of second busbar (6), and second busbar (6) offers and first mounting hole corresponding second Mounting hole (61), second mounting hole (61) are the pin tie point of second busbar (6).

2. bus according to claim 1, which is characterized in that be provided with multiple described first on second busbar (6) The arragement direction of busbar (4), multiple first busbars (4) is parallel with the extending direction of bending part of first busbar (4).

3. bus according to claim 2, which is characterized in that the quantity of first busbar (4) is 3~6.

4. a kind of AC motor control, including capacitor (1), transistor (3) and bus, which is characterized in that the bus is such as Bus described in any one of claims 1 to 3；

The transistor (3) is located at the underface of the bending part on the top of first busbar (4)；

The capacitor (1) is cuboid, is located at the underface of the transistor (3), and the top of the capacitor (1) has to institute The capacitor pin (11) that the bending part of the bottom end of the first busbar (4) extends is stated, the capacitor pin (11) is en plaque, and is opened up There is third mounting hole corresponding with the second mounting hole (61), it is female that the upper surface of the capacitor pin (11) is attached to described second In another lateral plates for arranging relatively described first busbar (4) of (6), and the bus and the capacitor (1) are by passing through described the One mounting hole, second mounting hole (61) are fixedly connected with the bolt (5) of the third mounting hole.

5. AC motor control according to claim 4, which is characterized in that the lower surface of the capacitor pin (11) is set It is equipped with embedded nut.

6. AC motor control according to claim 4, which is characterized in that it is female that the AC copper-line is located at described first Arrange the side far from the transistor (3) of (4).

7. AC motor control according to claim 4, which is characterized in that the quantity of the capacitor (1) be it is multiple, it is more The arragement direction of a capacitor (1) is parallel with the extending direction of the capacitor pin (11), and described in two of arbitrary neighborhood Capacitor (1) dielectric solder is together.

8. AC motor control according to claim 4, which is characterized in that the transistor (3) is insulated gate bipolar Transistor npn npn.