CN211405842U

CN211405842U - Frequency converter

Info

Publication number: CN211405842U
Application number: CN202020360091.0U
Authority: CN
Inventors: 陈培信; 陈华
Original assignee: Shenzhen Inovance Technology Co Ltd
Current assignee: Shenzhen Inovance Technology Co Ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-09-01
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a frequency converter, including casing, support piece, drive plate, electric capacity module, radiator unit, support piece's support separates the casing for circuit space and heat dissipation space, and the electric capacity board of drive plate and electric capacity module sets up in circuit space, and the condenser and the radiator unit of electric capacity module set up in heat dissipation space, and radiator unit is used for the heat of going brake pipe and rectifier bridge simultaneously. This converter has changed the spatial layout of traditional converter, the radiating effect is good when having promoted space utilization, and the operational environment of each device is good, can not bring new problem when reducing the space and occuping, utilize the support to divide into different intervals with the inside space of casing, the heat homoenergetic of the more device that generates heat is taken away by radiator unit in the heat dissipation space, drive plate and the electric plate that has higher demand to operational environment then by fine protection in circuit space, this converter compact structure is reasonable and reliable.

Description

Frequency converter

Technical Field

The utility model relates to a frequency conversion control field especially relates to a frequency converter.

Background

Many frequency converters on the market at present often consider one another in layout because the internal structure design is not reasonable enough, for example: in order to ensure that the frequency converter has better heat dissipation performance, the space between different devices is increased, the whole structure is huge, and a lot of space is wasted; some design conditions are opposite, in order to save space, each internal device is arranged to be compact in structure, so that heat dissipation of the frequency converter is not smooth, and normal work is affected; and once the structure is compact, the requirements of the use environment of each device cannot be met. Therefore, when the use space is narrow, the existing frequency converter cannot meet the requirement.

Disclosure of Invention

For solving the problem that converter space utilization is low among the prior art, the utility model aims to provide a rationally distributed converter.

In order to realize one of the above objects of the present invention, an embodiment of the present invention provides a frequency converter, including:

a housing enclosing therein an installation space having an opening;

the support piece comprises a bottom plate and a support, the bottom plate and the support are perpendicular to each other, the support is inserted into the installation space along the opening and divides the installation space into a circuit space and a heat dissipation space, the bottom plate covers the opening and is fixedly connected with the shell, and the support comprises a heat dissipation opening and a support hole;

the driving plate is fixedly connected to the supporting piece and arranged in the circuit space, and the driving plate comprises a brake pipe and a rectifier bridge which are arranged opposite to the heat dissipation port;

the capacitor module comprises a capacitor plate and a capacitor electrically connected with the capacitor plate, the capacitor plate is electrically connected with the driving plate and arranged in the circuit space, and the capacitor penetrates through the supporting hole and extends to the heat dissipation space;

and the heat dissipation assembly is arranged in the heat dissipation space and covers the heat dissipation port.

As a further improvement of an embodiment of the present invention, the heat dissipation assembly includes a heat sink, the heat sink includes a heat dissipation bottom plate, the heat dissipation bottom plate covers the heat dissipation opening.

As a further improvement of an embodiment of the present invention, the heat dissipation assembly includes a fan, and two sides of the fan are respectively an air inlet side and an air outlet side;

the radiator comprises a plurality of radiating fins which are parallel to each other, and the two ends of the extending direction of the radiating fins are respectively an air inlet end and an air outlet end;

the shell comprises a vent hole which is arranged opposite to the air outlet side and the air inlet end;

the air inlet side faces the air outlet end and the capacitor at the same time.

As an embodiment of the utility model provides a further improvement, support piece includes the aviation baffle, aviation baffle one end support hold in with the condenser is adjacent radiating fin, the other end extend to air-out side and its separation are first air-out side and second air-out side, first air-out side orientation the condenser, second air-out side orientation the air-out end.

As a further improvement of an embodiment of the utility model, still include fixed connection in the outside control assembly of casing, control assembly includes the control panel, the casing includes the control interface, the drive plate includes that first control row inserts, the control panel includes the orientation the drive row of one side of casing inserts, first control row inserts through the control interface connect in the drive row inserts.

As a further improvement of an embodiment of the utility model, still include fixed connection in the outside a plurality of extension subassembly of casing, the extension subassembly includes the expansion board, the control panel includes that a plurality of extension inserts the row, the expansion board include with the extension is inserted the row and is joined in marriage the second control row that connects and insert.

As a further improvement of an embodiment of the present invention, the housing includes a terminal surface opposite to the extension assembly, the extension insert row with the grafting direction that the second control row was inserted is parallel to the terminal surface.

As a further improvement of an embodiment of the present invention, the control assembly includes a control cover, the extension assembly includes an extension cover, and the control cover and the extension cover are both fixedly connected to the housing;

the end face is rectangular;

the length of the control cover body is equal to that of the end face;

when the expansion assembly is fixedly connected to the shell, the total width of the expansion cover body and the control cover body is equal to the width of the end face;

when all the extension socket are inserted with the extension assembly, the total length of all the extension covers is equal to the length of the end face.

As a further improvement of an embodiment of the present invention, the support includes a support body and a protruding support ring provided to the support body, the support ring encloses the support hole, the lateral wall of the support ring sets up a plurality of clearance.

As a further improvement of an embodiment of the present invention, the capacitor is perpendicularly fixed to the capacitor plate, the capacitor plate and the driving plate are parallel to the bracket.

the support piece comprises a support, wherein the support comprises a heat dissipation limiting groove, a positioning groove and a welding hole which are arranged on the inner side of the heat dissipation limiting groove, and a heat conduction positioning groove which is arranged between the heat dissipation limiting groove and the positioning groove;

the brake pipe comprises a body and a welding leg, and the welding leg penetrates through the welding hole;

the heat conduction insulating film covers the body in the positioning groove;

the heat-conducting insulating film covers the heat-conducting positioning groove, and the heat radiator is limited in the heat-radiating limiting groove and is fixedly connected with the supporting piece.

As a further improvement of an embodiment of the present invention, the support member includes a base, the bracket includes a first fastener, the base includes a second fastener, and the heat sink is fixedly connected to the first fastener and between the second fasteners.

As a further improvement of an embodiment of the present invention, the first fastening member is fixedly connected to the bracket, and the second fastening member is elastically connected to the base.

As a further improvement of an embodiment of the present invention, the base top is provided with a support rib plate extending from the base end to the support, and the heat sink is provided on the support rib plate.

As a further improvement of an embodiment of the present invention, the heat dissipation limiting groove is provided with a plurality of fool-proof posts, and the heat sink is provided with fool-proof holes for the fool-proof posts to be connected.

As a further improvement of an embodiment of the present invention, the brake pipe is provided with a positioning hole, and a positioning protrusion is provided in the positioning groove and connected to the positioning hole.

As a further improvement of an embodiment of the present invention, a plurality of clamping members, a part, are provided on the relative inner wall of the positioning groove the clamping members are fixedly provided, and a part is elastically provided.

As an embodiment of the utility model provides a further improvement, the support including set up in the through-hole of heat dissipation spacing groove department, the radiator includes the screw hole, and the bolt passes the through-hole and with screw hole threaded connection.

As a further improvement of an embodiment of the present invention, the support includes a heat dissipation opening disposed in the heat dissipation limiting groove, the heat dissipation opening is internally provided with the positioning groove and the welding hole, and the heat dissipation device covers the heat dissipation opening.

As a further improvement of an embodiment of the present invention, include with the relative drive plate that sets up of support, the drive plate include the plate body and with the thermovent sets up relatively brake pipe and rectifier bridge, the leg passes the welding hole with plate body welded connection.

Compared with the prior art, the utility model discloses following beneficial effect has: this converter has changed the spatial layout of traditional converter, the radiating effect is good when having promoted space utilization, and the operational environment of each device is good, can not bring new problem when reducing the space and occuping, utilize the support to divide into different intervals with the inside space of casing, the heat homoenergetic of the more device that generates heat is taken away by radiator unit in the heat dissipation space, drive plate and the electric plate that has higher demand to operational environment then by fine protection in circuit space, this converter compact structure is reasonable and reliable.

Drawings

Fig. 1 is a schematic structural diagram of a frequency converter according to an embodiment of the present invention;

fig. 2 is an exploded view of a frequency converter according to an embodiment of the present invention;

fig. 3 is a front view of a frequency converter according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic structural diagram of a removed casing of the frequency converter according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a frequency converter according to an embodiment of the present invention, with a housing and a heat sink removed;

fig. 7 is an exploded view of a support member, a radiator and a brake pipe of a frequency converter according to an embodiment of the present invention;

fig. 8 is a cross-sectional view of a support member, a radiator and a brake pipe of a frequency converter according to an embodiment of the present invention;

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

fig. 10 is a schematic structural diagram of a supporting member of a frequency converter according to an embodiment of the present invention;

fig. 11 is an exploded view of a frequency converter according to an embodiment of the present invention;

fig. 12 is an exploded view of an extension assembly of a frequency converter according to an embodiment of the present invention;

fig. 13 is an exploded view of a control assembly of the frequency converter of an embodiment of the present invention;

wherein, 1, a shell; 11. an end face; 12. a slideway; 13. controlling the interface; 2. a support member; 21. a base plate; 211. a second fastener; 212. a support rib plate; 22. a support; 221. a support hole; 2211. a support ring; 2212. a gap; 223. a first fastener; 222. a heat dissipation port; 23. positioning a groove; 231. positioning the projection; 232. a retainer; 24. welding the hole; 25. a heat conducting positioning groove; 26. a heat dissipation limiting groove; 261. a fool-proof post; 262. a through hole; 27. a fan frame; 28. an air deflector; 3. a control component; 31. a control panel; 311. driving the extension socket; 312. expanding extension socket; 32. a control cover body; 321. a jack; 331. a display screen; 332. a key sheet; 4. a drive plate; 41. a first control extension socket; 42. a brake pipe; 421. a body; 422. welding feet; 423. positioning holes; 43. a rectifier bridge; 5. an expansion component; 51. an expansion board; 511. the second control socket; 52. an extended cover; 521. inserting a block; 53. a lens; 6. a capacitor module; 61. a capacitive plate; 62. a capacitor; 7. a heat dissipating component; 71. a heat sink; 711. a heat dissipating fin; 712. a heat dissipation base plate; 713. a thermally conductive insulating film; 72. a fan; 8. an insulating plate; 9. a ground member; 10. a bolt; 100. a circuit space; 200. and a heat dissipation space.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.

An embodiment of the utility model provides a frequency converter, as shown in fig. 1 ~ 13, this frequency converter's rationally distributed, compact structure can save more installation space for the customer, and keeps inside good and circuit operational environment good that dispels the heat when reducing the frequency converter volume.

Specifically, as shown in fig. 1 to 4, the frequency converter of the present embodiment includes a support member 2 and a housing 1, and an installation space with an opening is enclosed inside the housing 1; the supporting member 2 includes a bottom plate 21 and a bracket 22 perpendicular to each other, the bracket 22 is inserted into the installation space along the opening and divides the installation space into a circuit space 100 and a heat dissipation space 200, the bottom plate 21 covers the opening and is fixedly connected with the housing 1, the bottom plate 21 and the housing 1 can be fixedly connected through a buckle or a bolt 10, and the housing 1 of the embodiment is provided with a cubic structure as shown in fig. 1 or fig. 2.

To clearly express the position and direction described in the present embodiment, the direction of the housing 1 relative to the support 2 is defined as front, and the opposite direction is defined as back, that is, the bracket 22 is inserted into the installation space from back to front, and the height of the frequency converter can also be defined from the front to back direction; the defining bracket 22 extends in the vertical direction, and defines the two sides of the installation space as the left side and the right side, respectively, in this embodiment, the circuit space 100 is set to the right side, the heat dissipation space 200 is set to the left side, and certainly, the left and right directions can be replaced; the horizontal plane is defined as the front, back, left and right surfaces, the vertical direction is vertical to the horizontal plane, and the horizontal plane is only defined by one name and is not limited to be horizontal in the sense of physics; of course, in the preferred embodiment, the vertical direction is parallel to the vertical direction of the physics (i.e., with reference to the direction of gravity), and the horizontal plane is correspondingly parallel to the horizontal plane in the physics.

The frequency converter further comprises a driving plate 4 fixedly connected with the supporting piece 2 and arranged inside the shell 1, and a heat dissipation assembly 7 arranged in the heat dissipation space 200, wherein the support 22 comprises a heat dissipation port 222 and a support hole 221, the driving plate 4 comprises a brake pipe 42 and a rectifier bridge 43 which are arranged opposite to the heat dissipation port 222, and the heat dissipation assembly 7 covers the heat dissipation port 222, so that on one hand, the heat of the brake pipe 42 and the rectifier bridge 43 which generate more heat on the driving plate 4 is transmitted to the heat dissipation assembly 7 through the heat dissipation port 222, the heat is timely removed, temperature accumulation is avoided, on the other hand, the heat dissipation space 200 is separated from the brake pipe 42 and the rectifier bridge 43 by the heat dissipation assembly 7, and effective heat dissipation is achieved while the driving plate 4 is separated from the heat dissipation.

The frequency converter further comprises a capacitor module 6, the capacitor module 6 comprises a capacitor plate 61 and a capacitor 62 electrically connected with the capacitor plate 61, the capacitor plate 61 is electrically connected with the drive plate 4 and arranged in the circuit space 100, the capacitor 62 penetrates through the support hole 221 and extends to the heat dissipation space 200, the capacitor 62 can generate more heat to be discharged in time during working, the capacitor plate 61 needs to be prevented from contacting too much dust, and the capacitor 62 is effectively cooled while the working environment of the capacitor plate 61 is protected.

The left space and the right space are respectively used for protecting the circuit environment and radiating heat, the service efficiency of each space is higher due to division of work in different spaces, so that the space utilization rate in the whole installation space is improved, meanwhile, heat of three heat-generating households, namely the capacitor 62 with more heat generation in the frequency converter, the brake pipe 42 and the rectifier bridge 43 can be effectively radiated through the radiating component 7, and the working effect is good.

This converter has changed the spatial layout of traditional converter, the radiating effect is good when having promoted space utilization, and the operational environment of each device is good, can not bring new problem when reducing the space and occuping, utilize support 22 to divide into different intervals with the inside space of casing 1, the heat homoenergetic of the more device that generates heat is taken away by radiator unit 7 in heat dissipation space 200, drive plate 4 and the electric plate that has higher demand to operational environment then by fine protection in circuit space 100, this converter compact structure is reasonable and reliable.

Further, as shown in fig. 2, 4 and 5, the heat dissipation assembly 7 includes a fan 72 and a heat sink 71, the heat sink 71 includes a heat dissipation bottom plate 712 and a plurality of heat dissipation fins 711 parallel to each other, the heat dissipation bottom plate 712 covers the heat dissipation opening 222, two sides of the fan 72 are respectively an air inlet side and an air outlet side, two ends of the extension direction of the heat dissipation fins 711 are respectively an air inlet end and an air outlet end, the housing 1 includes ventilation holes opposite to the air outlet side and the air inlet end, and the air inlet side faces the air outlet end and the capacitor 62.

The heat generated by the brake pipe 42 and the rectifier bridge 43 is transmitted to the heat dissipating fins 711 through the heat dissipating bottom plate 712, an air channel for air circulation is formed between the adjacent heat dissipating fins 711, the heat is volatilized to the air channel through the heat dissipating fins 711 and is discharged, and two air flow channels are formed in the heat dissipating space 200: one is that the air flow passes through the vent hole, the air inlet end, the radiating fin 711, the air outlet end, the air inlet, the fan 72 and the air outlet on one side of the shell 1 in sequence, and is discharged through the vent hole on the other side of the shell 1; the other is that the air flow is discharged through the vent hole on one side of the housing 1, the capacitor 62, the air inlet, the fan 72 and the air outlet in sequence, and the vent hole on the other side of the housing 1, and in the flowing process of the air flow, dust is inevitably deposited on the capacitor 62, the radiating fin 711 and the fan 72, but the air flow does not flow in the circuit space 100, so the driving board 4 and the capacitor board 61 are well protected.

The support member 2 further comprises a fan 72 bracket 27 for fixedly mounting the fan 72, as shown in fig. 5 to 7, the fan 72 bracket 27 is disposed between the bracket 22 and the bottom plate 21.

Furthermore, the supporting member 2 includes the air deflector 28, one end of the air deflector 28 abuts against the heat dissipation fin 711 adjacent to the capacitor 62, the other end of the air deflector 28 extends to the air outlet side and is divided into a first air outlet side and a second air outlet side, the first air outlet side faces the capacitor 62, and the second air outlet side faces the air outlet end, through a plurality of experiments, when the air deflector 28 is not arranged, the amount of air flow circulating near the capacitor 62 is not larger than that of the position of the heat dissipation fin 711, which affects the heat dissipation of the capacitor 62, in the embodiment, the air deflector 28 is arranged to play a role of separating air flow, as shown in fig. 5 and 6, so that the fan 72 is ensured to absorb heat in two spaces of the heat dissipater 71 and the capacitor 62 at.

Further, the frequency converter further comprises a control component 3 fixedly connected to the outside of the housing 1, the control component 3 comprises a control panel 31, the housing 1 comprises a control jack 13, the drive board 4 comprises a first control socket 41, the control panel 31 comprises a drive socket 311 facing one side of the housing 1, the first control socket 41 is connected to the drive socket 311 through the control jack 13, a drive circuit is arranged on a board body of the drive board 4, and an external input end and a variable frequency voltage output end are respectively connected to the drive circuit, and the drive circuit can also be connected with a brake resistor and an inverter; the driving board 4 is constructed as shown in fig. 2 and 4, and a control circuit is disposed on a board body of the control board 31, and is configured to display operating state information of the frequency converter and receive a control signal from a user.

The first control socket 41 of the present embodiment extends from the inner side of the housing 1 through the control socket 13 and then engages with the driving socket 311, and this embodiment is connected in this way; of course, the extension of the control socket 311 into the interior of the housing 1 through the control socket 13 may be reversed to engage the first control socket 41. Since the driving board 4 in the housing 1 is connected with strong electricity and the control board 31 is connected with weak points, the control circuit can be better protected by separating the driving board and the control board.

Further, the frequency converter further includes a plurality of extension assemblies 5 fixedly connected to the outside of the housing 1, as shown in fig. 11 and 12, the extension assemblies 5 include extension boards 51, the control board 31 includes a plurality of extension socket strips, and the extension boards 51 include second control socket strips 511 coupled to the extension socket strips. In fig. 1, 3 to 6, and 11 of this embodiment, the control component 3 and the extension component 5 are adjacently disposed on the outer side of the housing 1, two extension components 5 are provided, and certainly, the number of the extension components 5 can be customized according to the size of the frequency converter to be 1, 3, and the like, and the types of the extension components 5 can be customized and replaced according to the user's needs, the extension socket 312 is disposed on the left side of the control component 3,

the expansion module 5 can be configured as a programmer detection module, an IO expansion module 5, a bus adapter module or a fiber expansion module 5, and these expansion modules 5 can be plugged up and down interchangeably. The two expansion components 5 in this embodiment may be respectively provided with an IO digital hybrid card and an IR expansion card, or may be provided as a bus dual-port expansion card.

Through external extension subassembly 5, the customer is assembled according to suitable extension subassembly 5 of its demand selection, the converter can reduce the module that integrated customer does not need promptly, thereby make the whole cost reduction of converter, the price reduces, product competitiveness has been strengthened, and some converters are regular for making the appearance, each part of converter, like rectifier unit and extension unit, all make the cube of the length height unanimity, can lead to the space extravagant serious like this, if the extension unit has a plurality ofly, then extravagant more spaces, this application sets up like this, can make extension subassembly 5's appearance also can be done thinly, thereby reduce the size of whole converter.

Further, the housing 1 includes an end surface 11 disposed opposite to the extension block 5, and the insertion direction of the extension plug row and the second control plug row 511 is parallel to the end surface 11, and in the present embodiment, the extension block 5 is engaged with the extension plug row 312 from the left side to the right side of the control block 3. Due to the general terminal interface, the length in the plugging direction is longer than the length on the plane perpendicular to the terminal interface, and the height of the expansion assembly 5 in the direction perpendicular to the end face 11 can be reduced by plugging the expansion plug row with the second control row plug 511 along the direction parallel to the end face 11, that is, the left-right direction instead of the front-back direction, so that the thickness of the whole frequency converter is made lower.

Further, the control assembly 3 includes a control cover 32, the expansion assembly 5 includes an expansion cover 52, a lens 53 is disposed on the expansion cover 52 to perform a packaging protection function, the control cover 32 and the expansion cover 52 are both fixedly connected to the housing 1, and the end surface 11 of the housing 1 is rectangular; the length of the control cover 32 is equal to the length of the end face 11, when the extension module 5 is fixedly connected to the housing 1, the total width of the extension cover 52 and the control cover 32 is equal to the width of the end face 11, and when all the extension rows are inserted into the extension module 5, the total length of all the extension covers 52 is equal to the length of the end face 11.

Preferably, the whole casing 1 is arranged in a cubic structure, so that after the control assembly 3 and the expansion assembly 5 are assembled, the length and the width of the whole machine are not changed, and only a little bit is added in the height direction, so that the shape of the whole machine is regular.

In addition, as shown in fig. 2, a slide 12 parallel to the end face 11 of the housing 1 is disposed outside the housing 1, the control cover 32 is fixedly connected to the end face 11, and the expansion cover 52 abuts against the control cover 32 along the slide 12 at the end face 11 and is fixedly connected to the housing 1 by a fixing member; as shown in fig. 12 and 13, the extension cover 52 is provided with an insertion block 521, and the control cover 32 opposite to the extension cover is provided with an insertion hole 321 corresponding to the insertion block 521, so that when the extension assembly 5 slides to a position from left to right, the insertion block 521 is inserted into the insertion hole 321, and accurate positioning is achieved.

Further, as shown in fig. 7, the bracket 22 includes a bracket body and a support ring 2211 protruding from the bracket body, the support ring 2211 encloses a support hole 221, a plurality of gaps 2212 are disposed on a side wall of the support ring 2211, the support ring 2211 provides a supporting force for the capacitor 62, and the support ring 2211 plays a role of fastening to prevent the capacitor 62 from sliding, but the capacitor 62 is often accompanied by some vibration and may generate expansion and contraction due to heat during operation, so as to avoid that the vibration of the capacitor 62 drives the whole frequency converter to vibrate and effectively support during expansion and contraction due to too high rigidity, and the gaps 2212 are disposed to play a role of buffering and shock absorption.

Further, the capacitor 62 is vertically fixed to the capacitor plate 61, and the capacitor plate 61 and the driving plate 4 are parallel to the bracket 22, as shown in fig. 4, such an arrangement can maximize the space utilization inside the housing 1, and the distance between the capacitor 62 and the heat sink 71 to the inner wall of the housing 1 can be set as short as possible to save the space inside, thereby maximizing the overall space utilization.

In addition, the frequency converter further includes a grounding member 9 electrically connected to the control board 31 and the driving board 4 at the same time, and an insulating plate 8 disposed between the capacitor plate 61 and the driving board 4, as shown in fig. 2 and 4, to ensure effective operation of the frequency converter, the control assembly 3 includes a display control device disposed on the control cover 32, the display control device is electrically connected to the control board 31, the display control device may be a touch screen, or may be of the structure shown in fig. 13, and includes a display screen 331 and a key board 332.

This support 22 of converter includes heat dissipation spacing groove 26, set up in constant head tank 23 and the welding hole 24 of heat dissipation spacing groove 26 inboard, set up the heat conduction constant head tank 25 between heat dissipation spacing groove 26 and constant head tank 23, brake pipe 42 includes body 421 and leg 422, radiator 71 includes heat conduction insulating film 713, leg 422 passes welding hole 24, heat conduction insulating film 713 locates body 421 lid in constant head tank 23, radiator 71 locates heat conduction insulating film 713 lid in heat conduction constant head tank 25, radiator 71 is restricted in heat dissipation spacing groove 26 and with support piece 2 fixed connection.

In the process of assembling the brake pipe 42, the body 421 of the brake pipe 42 is firstly placed in the positioning groove 23, the welding leg 422 penetrates through the welding hole 24 to be welded with the circuit board on the other side of the bracket 22, the positioning of the brake pipe 42 is realized in the process of installing and limiting the body 421 on the positioning groove 23, and the positioning groove 23 is directly arranged on the bracket 22, so that the process does not need the assistance of other positioning equipment; then, the heat-conducting insulating film 713 is placed in the heat-conducting positioning groove 25, so that the heat-conducting insulating film 713 is positioned without an auxiliary positioning tool, and the brake pipe 42 is completely covered in the positioning groove 23 when the heat-conducting insulating film 713 is placed; the radiator 71 is placed in the heat dissipation limiting groove 26 to achieve self positioning and positioning of the heat conduction insulating film 713, and finally the radiator 71 is fixedly connected with the supporting piece 2, namely positioning and installation of the brake pipe 42 are achieved.

Therefore, the production and assembly process of the brake pipe 42 can be simplified, the auxiliary positioning of the pressing block is not needed in the installation and fixation process of the brake pipe 42, the heat-conducting insulating film 713 and the radiator 71 are positioned by the aid of the existing supporting piece 2, the positioning effect is good, deviation cannot be generated, the welding quality of the brake pipe 42 and a circuit board is improved, the use of screws is reduced, the assembly speed is increased, and the production efficiency is improved.

Further, as shown in fig. 7, 8 and 10, the bracket 22 includes a first fastening member 223, the base includes a second fastening member 211, the heat sink 71 is fixedly connected between the first fastening member 223 and the second fastening member 211, the first fastening member 223 is fixedly connected to the bracket 22, the second fastening member 211 is elastically connected to the base, a support rib 212 extending from the end of the base to the bracket 22 is arranged above the base, the heat sink 71 is arranged on the support rib 212, and the positioning and clamping of the heat sink 71 are realized through the first fastening member 223, the second fastening member 211 and the support rib 212.

As shown in fig. 8-9, set up a plurality of chucking spare 232 on the relative inner wall of constant head tank 23, partial chucking spare 232 is fixed to be set up, and partial chucking spare 232 elasticity sets up for the brake pipe 42 is placed and is blocked fastening promptly behind the constant head tank 23.

In addition, as shown in fig. 10, a plurality of fool-proof posts 261 are arranged in the heat dissipation limiting groove 26, and the heat sink 71 is provided with fool-proof holes matched with the fool-proof posts 261 so as to ensure that the heat sink 71 is installed at an accurate position; the brake pipe 42 is provided with a positioning hole 423, and a positioning bulge 231 matched and connected with the positioning hole 423 is arranged in the positioning groove 23, so that the installation of the radiator 71 is guaranteed. The bracket 22 further includes a through hole 262 provided at the heat dissipation limiting groove 26, the heat sink 71 includes a threaded hole, and the bolt 10 passes through the through hole 262 and is in threaded connection with the threaded hole.

The bracket 22 comprises a heat dissipation port 222 arranged in the heat dissipation limiting groove 26, a positioning groove 23 and a welding hole 24 are arranged in the heat dissipation port 222, the positioning groove 23 can be a structure with a hollowed back part or a closed structure, and the positioning groove 23 for fixing the brake pipe 42 is a plurality of protruding structures which are oppositely arranged and can clamp the brake pipe 42; the heat dissipation opening 222 includes an area for placing the brake pipe 42 and an area for placing the rectifier bridge 43, the heat dissipation opening 222 is of a hollow structure between the rectifier bridge 43 and the heat sink 71, the driving board 4 further includes a board body, in this embodiment, the position of the positioning groove 23 is closed, and the welding leg 422 of the brake pipe 42 penetrates through the welding hole 24 to be welded with the board body, so that the heat transfer into the circuit space 100 is reduced as much as possible while the brake pipe 42 is kept connected with the board body.

Compared with the prior art, the embodiment has the following beneficial effects:

this converter has changed the spatial layout of traditional converter, the radiating effect is good when having promoted space utilization, and the operational environment of each device is good, can not bring new problem when reducing the space and occuping, utilize support piece 2 to divide into different intervals with the inside space of converter, the heat homoenergetic of the more device that generates heat is taken away by radiator unit 7 in heat dissipation space 200, drive plate 4 and the electric plate that has higher demand to operational environment then by fine protection in circuit space 100, this converter compact structure is reasonable and reliable.

The detailed description set forth above is only a specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A frequency converter, comprising:

a housing enclosing therein an installation space having an opening;

2. The frequency converter of claim 1, wherein the heat dissipation assembly comprises a heat sink comprising a heat dissipation base plate, the heat dissipation base plate covering the heat dissipation opening.

3. The frequency converter according to claim 2, wherein the heat dissipation assembly comprises a fan, and the two sides of the fan are respectively an air inlet side and an air outlet side;

the air inlet side faces the air outlet end and the capacitor at the same time.

4. The frequency converter according to claim 3, wherein the supporting member comprises an air guiding plate, one end of the air guiding plate abuts against the heat dissipating fin adjacent to the capacitor, the other end of the air guiding plate extends to the air outlet side and is divided into a first air outlet side and a second air outlet side, the first air outlet side faces the capacitor, and the second air outlet side faces the air outlet end.

5. The frequency converter according to claim 1, further comprising a control assembly fixedly connected to an exterior of the housing, the control assembly including a control panel, the housing including a control jack, the drive panel including a first control patch, the control panel including a drive patch facing one side of the housing, the first control patch being coupled to the drive patch through the control jack.

6. The frequency converter according to claim 5, further comprising a plurality of expansion assemblies fixedly connected to the exterior of the housing, wherein the expansion assemblies comprise expansion boards, the control board comprises a plurality of expansion socket strips, and the expansion boards comprise second control socket strips coupled to the expansion socket strips.

7. The frequency converter according to claim 6, wherein the housing comprises an end surface disposed opposite to the extension assembly, and the insertion direction of the extension socket and the second control socket is parallel to the end surface.

8. The frequency converter according to claim 7, wherein the control assembly comprises a control cover, the expansion assembly comprises an expansion cover, and the control cover and the expansion cover are both fixedly connected to the housing;

the end face is rectangular;

the length of the control cover body is equal to that of the end face;

9. The frequency converter according to claim 1, wherein the bracket comprises a bracket body and a support ring protruding from the bracket body, the support ring encloses the support hole, and a plurality of gaps are provided on a side wall of the support ring.

10. The frequency converter of claim 1, wherein said capacitors are secured perpendicularly to said capacitor plates, said capacitor plates and said drive plates being parallel to said bracket.