CN214707512U

CN214707512U - Frequency conversion device for all-in-one machine

Info

Publication number: CN214707512U
Application number: CN202121051769.8U
Authority: CN
Inventors: 王者胜; 安郁熙; 吕有良; 徐连建
Original assignee: Huaxia Tianxin Intelligent Internet Of Things Co ltd
Current assignee: Huaxia Tianxin Intelligent Internet Of Things Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-11-12
Anticipated expiration: 2031-05-17

Abstract

The utility model provides a frequency conversion device for an all-in-one machine, which comprises a bus bar, wherein the bus bar comprises a bearing part and a clamping part arranged on the bearing part, the bearing part and the clamping part form an accommodating space and an electric capacitor, and the electric capacitor is arranged in the accommodating space; the quantity of joint portion is two, and on bearing the weight of the portion was located to two joint portion symmetries, two joint portion height difference made can only be by higher joint portion with correspond in the accommodation space the electric power electric capacity electricity is connected. This for all-in-one frequency conversion device have adopted female modular design who directly loads power capacitor of arranging to reduce the height of converter, avoided adopting the plug-in type to connect, make the electric capacity be difficult for droing, damaging in motor vibration process, and female arranging adopts the not low-lying of joint portion co-altitude to prevent slow-witted design, reduced female probability that row installation error leads to damaging other components.

Description

Frequency conversion device for all-in-one machine

Technical Field

The utility model relates to a mining all-in-one technical field especially relates to a frequency conversion equipment for all-in-one.

Background

The existing mining flame-proof and intrinsic safety type variable frequency speed regulation all-in-one machine has a large frequency conversion device, high height and is not suitable for working conditions with low working face height, for example, in the Chinese patent CN 103219834B-3300V mining flame-proof and intrinsic safety type variable frequency speed regulation all-in-one machine, a variable frequency power and energy storage module is installed in a frequency conversion box, the variable frequency power and energy storage module comprises a water cooling plate, a purple copper plate is installed on the water cooling plate, a plurality of power devices are installed on the purple copper plate, a laminated busbar connected with the power devices is installed on the power devices, a support frame is arranged above the laminated busbar, a separation fixing plate is arranged on the support frame, a plug-in type power capacitor is installed between the separation fixing plates, a conductive connecting pipe of the plug-in type power capacitor is plugged in a connecting column connected with the laminated busbar, the stacking design not only is the height of the devices in the frequency conversion box increased, but also the plug-in type connection of the capacitor is easy to be separated from the connecting column in the vibration process of a motor, And (4) damage.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a frequency conversion equipment for all-in-one, it is higher that its frequency conversion equipment who has solved among the prior art variable frequency speed governing all-in-one highly, and electric capacity is pegged graft and is broken away from the problem that just damages easily.

According to the utility model discloses a frequency conversion device for all-in-one machine, include

Female arranging, female arranging includes the bearing part and locates the joint portion on the bearing part, bearing part and joint portion form accommodation space to and

the power capacitor is arranged in the accommodating space;

the quantity of joint portion is two, and on two joint portions located the bearing part, two joint portion height difference made can only be by higher joint portion with correspond in the accommodation space the electric power electric capacity electricity is connected.

Furthermore, the power supply device further comprises a frequency conversion box, and the busbar and the power capacitor are arranged in the frequency conversion box.

Further, the busbar is a laminated busbar.

Furthermore, the frequency conversion box further comprises a water cooling plate, the water cooling plate is arranged in the frequency conversion box, a power device is arranged on the water cooling plate, and the power device is connected with the power capacitor through the bearing part.

Furthermore, a return type cooling water channel is arranged in the water cooling plate.

Furthermore, a controller is also arranged in the frequency conversion box.

Furthermore, the number of the busbars is at least two, and two adjacent busbars are connected through clamping parts with different heights.

Furthermore, a capacitor fixing plate is arranged on the power capacitor, a capacitor supporting plate used for assembling the capacitor fixing plate is arranged on the frequency conversion box, and the assembling position of the capacitor fixing plate and the assembling position of the capacitor supporting plate are adjustable.

Furthermore, a handle is arranged on the power capacitor, and the handle can stretch and retract relative to the power capacitor.

Further, still include with the reactance case that the inverter box is connected, be equipped with the connector socket on the reactance case, be equipped with this ampere of chamber in the reactance case, be equipped with the control line input plug that is used for connection director in this ampere of chamber.

The technical principle of the utility model is that: female direct loading power capacitor of arranging is in order to reduce overall height, and the setting of the joint portion of co-altitude is so that higher joint portion can be connected with power capacitor is electric, and lower joint portion can't be connected with power capacitor is electric, and female arranging of easy to assemble for power capacitor can correctly load, use.

Compared with the prior art, this frequency conversion device for all-in-one machine of this application has adopted female modularized design who directly loads power capacitor, through the support frame among the prior art, the scheme of devices such as separation fixed plate support electric capacity, thereby the height of converter has been reduced, and modularized design, easily dismouting, convenient maintenance, the maintainability of complete machine has been promoted, avoid adopting plug-in type to connect, make electric capacity be difficult for droing in the motor vibration process, damage, and female row adopts the not slow-witted design of the co-altitude of joint portion, female probability that the installation error of arranging leads to damaging other components has been reduced.

Drawings

Fig. 1 is an exploded view of the frequency converter for an integrated machine according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a frequency conversion device for an integrated machine in an embodiment of the present invention.

Fig. 3 is a schematic structural view of the embodiment of the present invention after bus bar connection.

Fig. 4 is a schematic structural diagram of a reactance box in an embodiment of the present invention.

In the above drawings: 100. a busbar; 101. a bearing part; 102. a clamping part; 200. a power capacitor; 201. a capacitor fixing plate; 202. a handle; 300. a frequency conversion box; 301. a water-cooling plate; 302. a controller; 303. a capacitor support plate; 304. a power device; 305. mounting a column; 400. a reactance box; 401. a connector receptacle; 402. an intrinsic safety cavity; 403. the control line is input to the plug.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-4, an embodiment of the present invention provides a frequency conversion apparatus for an all-in-one machine, which includes a frequency conversion box 300 and a reactance box 400 connected to the frequency conversion box 300.

Specifically, referring to fig. 1-2, the inverter box 300 includes a box body, the box body is divided into a capacitor area for assembling the power capacitor 200 and a control area for assembling the controller 302, a water cooling plate 301 is fixed on a bottom plate of the capacitor area through a bolt, the controller 302 for realizing the control function of the inverter device for the integrated machine is arranged on the bottom plate of the control area, in a feasible embodiment, referring to fig. 1, an installation column 305 is assembled on the bottom plate of the control area in a threaded manner, and a top plate of the controller 302 is fixed on the top of the installation column 305 through a bolt, so that the assembly and disassembly are facilitated, and the maintainability is strong.

With reference to fig. 1, a turn-back cooling water channel is arranged in the water cooling plate 301, that is, the water cooling plate 301 is a turn-back water cooler with high heat exchange efficiency, the power device 304 is directly mounted on the water cooling plate 301 through a bolt, the lower part of the power device 304 directly contacts the turn-back water cooler, no other heat transfer medium (such as a copper plate) generates heat loss, and the heat dissipation efficiency is higher.

The power device 304 is connected with a busbar 100 through a bolt, and the busbar 100 in this embodiment is a laminated busbar. Specifically, referring to fig. 3, the busbar 100 includes a bearing portion 101 and a clamping portion 102 integrally cast on the bearing portion 101, and a power device 304 is connected to the bearing portion 101 through a bolt; the number of the clamping portions 102 is two, the two clamping portions 102 are symmetrically arranged on the bearing portion 101, so that the section of the busbar 100 forms a concave shape, the bearing portion 101 and the clamping portions 102 form an accommodating space, the power capacitor 200 is arranged in the accommodating space, that is, the busbar 100 and the power capacitor 200 are both arranged in the frequency conversion box 300; the two clamping portions 102 are different in height, a wiring terminal sleeve is arranged on the side portion of the power capacitor 200 corresponding to the higher clamping portion 102 in height, the wiring terminal sleeve is clamped on the higher clamping portion 102 and then fixed through a bolt, so that the power capacitor 200 in the corresponding accommodating space can be contacted with the higher clamping portion 102 to achieve electric connection of the busbar 100 and the power capacitor 200, if the power capacitor 200 is reversely arranged, the power capacitor 200 cannot be electrically connected with the busbar 100, the direction of the power capacitor 200 is correct during assembly, the busbar 100 and the power capacitor 200 are assembled through the bolt, and meanwhile, the power device 304 is connected with the power capacitor 200 sequentially through the bearing portion 101, the higher clamping portion 102 and the wiring terminal sleeve. The power capacitor 200 is electrically connected with the power device 304 through the busbar 100, is in a modular design, is easy to disassemble and assemble, is convenient to overhaul, and improves the maintainability of the whole machine.

In this embodiment, the capacitor area includes four busbars 100, the four busbars 100 are sequentially arranged, two adjacent busbars 100 are connected by a clamping portion 102 with different heights, referring to fig. 3, a lower clamping portion 102 of a previous busbar 100 is connected with a higher clamping portion 102 of a next busbar 100 by a bolt, so that the higher clamping portions 102 of the four busbars 100 are in the same direction, the lower clamping portions 102 of the four busbars 100 are in the same direction, and the installation direction (the direction of a terminal sleeve) of the power capacitor 200 is in the same direction, so that the foolproof design of the busbars 100 is realized, and the probability that other electrical equipment elements are damaged due to reverse errors in installation of the busbars 100 is reduced; meanwhile, the power capacitors 200 are not distributed in a distributed mode and are installed in a concentrated mode, and therefore overhaul and maintenance of devices are facilitated.

Through reducing the copper plate and being used for installing plug-in type power capacitor's support frame, separation fixed plate, avoid piling up the design, make the device volume reduce, highly reduce is applicable to multiple operating mode.

With continued reference to fig. 1, both side portions of the power capacitor 200 are provided with capacitor fixing plates 201, the side wall of the box body of the frequency conversion box 300 in the capacitor area is welded with a capacitor supporting plate 303 for supporting and fixing the capacitor fixing plates 201, and the power capacitor 200 is assembled with the frequency conversion box 300 through the capacitor fixing plates 201, that is, the power capacitor 200 is fixed on the frequency conversion box 300 in addition to the busbar 100, and is doubly fixed, so that the hidden danger that the power capacitor 200 falls off and is damaged due to the vibration of a motor during operation is thoroughly solved; all there are two elliptical holes on each capacitor fixing plate 201, have the screw that corresponds with the elliptical hole on the capacitor support plate 303, realize capacitor fixing plate 201 and capacitor support plate 303's assembly through the bolt, and the elliptical hole on the capacitor fixing plate 201 is used for adjusting when installing and installs the surplus, makes capacitor fixing plate 201 with the assembly position of capacitor support plate 303 is adjustable.

With reference to fig. 1, the capacitor fixing plate 201 of the power capacitor 200 is further provided with a handle 202, and the handle 202 is installed between the two oval holes of the corresponding capacitor fixing plate 201, specifically, the handle 202 is inserted into the capacitor fixing plate 201 and can move up and down on the capacitor fixing plate 201 to realize that the handle 202 can extend and contract relative to the power capacitor 200. The handle 202 is integrally cast with a limiting part for preventing the limiting part from being separated from the capacitor fixing plate 201, and the handle 202 can be lifted to be convenient for holding; after installation, the handle 202 is put down, and no more space is occupied.

Referring to fig. 1-2, the reactance box 400 is connected to the bottom of the frequency conversion box 300 corresponding to the control area through a bolt, referring to fig. 4, a connector socket 401 is installed on the surface of the reactance box 400 and is used for connecting a power cable externally, an intrinsic safety cavity 402 is arranged in the reactance box 400, a control line input plug 403 used for connecting the controller 302 is arranged in the intrinsic safety cavity 402, the control line input plug 403 extends from the intrinsic safety cavity 402 to the surface of the reactance box 400, that is, the input end of the control line input plug 403 is arranged on the surface of the reactance box 400 and is used for external connection, and the output end of the control line input plug 403 extends into the intrinsic safety cavity 402 and is electrically connected with the controller 302 through a wire.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a frequency conversion device for all-in-one machine which characterized in that: comprises that

Busbar (100), busbar (100) includes bearing part (101) and locates joint portion (102) on bearing part (101), bearing part (101) and joint portion (102) form accommodation space to and

the power capacitor (200), the said power capacitor (200) locates in the accommodating space;

the quantity of joint portion (102) is two, and on bearing portion (101) was located in two joint portions (102), two joint portions (102) highly different made can only be by higher joint portion (102) with correspond the accommodation space in electric power electric capacity (200) electricity is connected.

2. The frequency conversion device for the all-in-one machine according to claim 1, wherein: the power supply is characterized by further comprising a frequency conversion box (300), wherein the busbar (100) and the power capacitor (200) are arranged in the frequency conversion box (300).

3. The frequency conversion device for the all-in-one machine according to claim 1, wherein: the busbar (100) is a laminated busbar.

4. The frequency conversion device for the all-in-one machine according to claim 2, wherein: still include water-cooling board (301), water-cooling board (301) are located in frequency conversion case (300), be equipped with power device (304) on water-cooling board (301), power device (304) pass through load-bearing part (101) connect electric power electric capacity (200).

5. The frequency conversion device for the all-in-one machine according to claim 4, wherein: a return type cooling water channel is arranged in the water cooling plate (301).

6. The frequency conversion device for the all-in-one machine according to claim 2, wherein: the frequency conversion box (300) is also internally provided with a controller (302).

7. The frequency conversion device for the all-in-one machine according to claim 1, wherein: the number of the busbars (100) is at least two, and two adjacent busbars (100) are connected through clamping parts (102) with different heights.

8. The frequency conversion device for the all-in-one machine according to claim 2, wherein: be equipped with electric capacity fixed plate (201) on power capacitor (200), be equipped with on frequency conversion case (300) and be used for the assembly electric capacity backup pad (303) of electric capacity fixed plate (201), electric capacity fixed plate (201) with the assembly position of electric capacity backup pad (303) is adjustable.

9. The frequency conversion device for the all-in-one machine according to claim 1, wherein: the electric power capacitor (200) is provided with a handle (202), and the handle (202) can stretch and contract relative to the electric power capacitor (200).

10. The frequency conversion device for the all-in-one machine according to claim 6, wherein: still include with reactance case (400) that frequency conversion case (300) are connected, be equipped with connector socket (401) on reactance case (400), be equipped with intrinsically safe chamber (402) in reactance case (400), be equipped with control line input plug (403) that are used for connection control ware (302) in intrinsically safe chamber (402).