CN208209790U - the shell structure of frequency converter - Google Patents

Abstract

A kind of shell structure of frequency converter, the shell formed including upper casing and lower casing, and it is arranged in the intracorporal CPU board of shell, power module and radiator, power module is CPU board power supply, power module includes the capacitor board and power panel being stacked, electronic component and connector are equipped in the inside of capacitor board and power panel, capacitor board and CPU board are arranged in upper casing, the lower section of CPU board is arranged in capacitor board, power panel and radiator are arranged in lower casing, the top of radiator is arranged in power panel, the edge of upper casing bottom end surrounding is equipped with upper casing lip made of extending downwardly, lower casing lip made of being equipped with and upwardly extend at the edge of lower casing top surrounding, the height of upper casing lip is equal to the height of lower casing lip and is all larger than or is equal to 7mm, it can increase head pulse and the intracorporal route of shell by upper casing lip and lower casing lip Creepage distance between plate.

Description

The shell structure of frequency converter

Technical field

The utility model relates to Low Voltage Electrical Apparatus, more particularly to a kind of shell structure of frequency converter.

Background technique

The birth of frequency converter is derived from demand of the alternating current generator to stepless speed regulation, with thyristor, static induction transistor, resistance to The appearance of the components such as the ambipolar thyristor of high voltage gate dielectric, electrical technology have variation with rapid changepl. never-ending changes and improvements, frequency converter timing technology Also develop therewith, special pulsewidth modulation VVVF speed regulation technology is even more that frequency converter is allowed to climb up new step.However as electricity The continuous extension of power application of electronic technology field, frequency converter have also gradually been deep into the every field of industry, therefore market pair The performance requirement of frequency converter, while frequency converter producer is also more and more, the competitiveness for how improving product becomes enterprise development Important development direction.With the trend that frequency converter minimizes, the partial properties of frequency converter is caused also to be affected, it is especially small-sized Frequency converter after change is difficult to through electromagnetic compatibility test (EMC).

Summary of the invention

The purpose of the utility model is to overcome the defect of the prior art, provide that a kind of structure is simple, small in size, the service life is long Frequency converter shell structure.

To achieve the above object, the utility model adopts the technical scheme that

A kind of shell structure of frequency converter including the shell that upper casing 120 and lower casing 110 form, and is arranged in shell CPU board 210, power module 2 and radiator 260, power module 2 be CPU board 210 power, power module 2 include be stacked Capacitor board 230 and power panel 240, be equipped with electronic component and connector, electricity in the inside of capacitor board 230 and power panel 240 Hold plate 230 and CPU board 210 to be arranged in upper casing 120, capacitor board 230 is arranged in the lower section of CPU board 210, power panel 240 and dissipates Hot device 260 is arranged in lower casing 110, and the top of radiator 260 is arranged in power panel 240, and the edge of 120 bottom end surrounding of upper casing is set Upper casing lip 151 made of extending downwardly forms the upper casing lip slot cooperated with lower casing 110 in the inside of upper casing lip 151 1510, the lower casing lip cooperated made of being equipped with and upwardly extend at the edge of 110 top surrounding of lower casing with upper casing lip slot 1510 152, the lower casing lip slot 1520 cooperated with upper casing lip 151 is formed under the outside of lower casing lip 152, upper casing lip 151 Height is equal to the height of lower casing lip 152 and is all larger than or is equal to 7mm.

Optionally, the bottom side of described 230 one end of capacitor board is equipped with electrolytic capacitor 231, and power panel 240 is arranged in capacitor board The lower section of 230 other end, one end of power panel 240 are equipped with the escape groove 241 cooperated with electrolytic capacitor 231, and the other end is equipped with The connecting terminal 242 for extending to 230 outside of capacitor board, is equipped with and the terminals on power panel 240 in the lower casing lip 152 of side Sub 242 corresponding lower casing escape ports 1521 are equipped with wiring through-hole 1522 corresponding with connecting terminal 242 in upper casing lip 151.

Optionally, the outside of the lower casing lip 152 is equipped with lower casing link slot 153, sets on the top of lower casing link slot 153 There is lower casing to buckle 154, the bottom of upper casing 120 is equipped with the upper casing buckle slot 1540 with 154 cooperation of lower casing buckle, in upper casing lip 151 outside is equipped with the upper casing guide groove 155 with 154 cooperation of lower casing buckle.

Optionally, partition 111 is equipped between the radiator 260 and power panel 240, partition 111 is equipped with and radiator The bulkhead apertures 113 of 260 cooperations are equipped with locating shaft 112 in the top side of partition 111, are equipped on power panel 240 and locating shaft 112 cooperation location holes 1120, locating shaft 112 pass through location hole 1120 connect with capacitor board 230, capacitor board 230 equipped with The positioning screw 1121 that locating shaft 112 is fixedly connected is equipped with connection copper post 244 in the top side of power panel 240, in capacitor board 230 The pillar screw 2440 for being equipped with and connecting copper post 244 and being fixedly connected.

Optionally, heat dissipation ground strip is equipped in shell, heat dissipation ground strip includes the ground connection fixed part connecting with radiator 260 262, and extend to across bulkhead apertures 113 the ground connection wire connecting portion 261 of 111 top side of partition, be equipped in ground connection wire connecting portion 261 with The ground connection terminal screw 2611 that partition 111 connects is equipped with the ground connection wiring hole with heat dissipation ground strip cooperation on the side wall of shell 2610。

Optionally, the side of radiator 260 is equipped with fan assembly 270, and the top of fan assembly 270 is equipped with waterproof case 140, Waterproof case 140 include into it is U-shaped tip upside down on the spaced waterproof 141 in shell top side, be equipped in the inside of waterproof 141 The connecting column 143 connecting with the fan shroud 271 of fan assembly 270, the end face of connecting column 143 are equipped with the row with fan shroud 271 The limited post 1431 of the edge mate of port, the area of waterproof 141 are greater than the area of the top side of shell.

Optionally, the fan assembly 270 includes fan shroud 271 and the blower 272 being arranged in fan shroud 271, wind The middle part of hood 271 is equipped with exhaust outlet, the insertion intracorporal plate 274 of shell is equipped at the both ends of fan shroud 271, on plate 274 Equipped with inclined snap-gauge 275 outward, the fan shroud buckle 276 being engaged by clamping with inner walls is equipped in the outside of snap-gauge 275, It is equipped with position-limited wing 277 in the end of snap-gauge 275, is equipped with fan shroud mounting hole 278 and fan shroud simultaneously in the inside of fan shroud 271 Positioning column 279, screw can pass through fan shroud mounting hole 278 and fan shroud 271 are fixed in lower casing 110.

Optionally, supporting plate 220 is equipped between the CPU board 210 and capacitor board 230；The top side of supporting plate 220 is equipped with and CPU The upper supporting piece 221 that plate 210 cooperates, upper supporting piece 221 are arranged in four apex angles of supporting plate 220, on one of supporting element 221 Equipped with CPU grounding nut 2240, CPU board 210 is equipped with the CPU earthing screw 224 connecting with CPU grounding nut 2240, and Three attachment screws 223 connecting with its excess-three upper supporting piece 221, CPU board 210 are connect by CPU earthing screw 224 and CPU Ground nut 2240 is connect with CPU ground connection inserts；The bottom side of supporting plate 220 is equipped with the buckle 225, Yi Jiyu connecting with capacitor board 230 The lower support element 228 that capacitor board 230 cooperates, the middle part of lower support element 228 are equipped with guide post 226, and capacitor board 230 is equipped with and guiding The pilot hole 2260 that column 226 cooperates forms the card with 2260 edge mate of pilot hole between lower support element 228 and buckle 225 Slot 227.

Optionally, the top side of shell is equipped with the key panel 121 being correspondingly arranged with the microswitch 214 of CPU board 210, The guide post 122 being arranged perpendicular to CPU board 210 is equipped between key panel 121 and microswitch 214, the bottom end of guide post 122 is against On microswitch 214, top is equipped with the pressure cap 123 that cooperate with key panel 121, equipped with cooperating with pressure cap 123 on shell Counterbore 1230 is equipped with the guide hole 1220 cooperated with guide post 122, the bottom side of pressure cap 123 and counterbore 1230 in the bottom of counterbore 1230 Interval setting.

Optionally, the shell includes lower casing 110 and upper casing 120, power panel 240, radiator 260 and fan assembly 270 It is arranged in lower casing 110, the bottom side of 230 right end of capacitor board is equipped with electrolytic capacitor 231, and capacitor board 230 is arranged in power panel 240 The lower section of the other end, lower casing 110 are equipped with partition 111, power panel 240 and capacitor board between power panel 240 and radiator 260 230 are fixedly connected, and capacitor board 230 is fixedly connected with partition 111 again, fan assembly 270 be arranged in the right end of radiator 260 and It corresponds in the lower section of electrolytic capacitor 231, fixed plate 281 is connect with the bottom end of lower casing 110, and fixed plate 281 is arranged in slide plate 283 Left end.

The shell structure of the frequency converter of the utility model, when carrying out electromagnetic compatibility test (EMC) to frequency converter, head pulse When gap between upper casing 120 and lower casing 110, pulse can greatly be increased by upper casing lip 151 and lower casing lip 152 Creepage distance between head and the intracorporal wiring board of shell, will not damage the electronic component on route, effectively improve frequency converter The Comprehensive Assessment of interference size (EMI) and anti-interference ability (EMS) in terms of electromagnetic field.In addition, passing through the lower casing lip in side 152 are equipped with lower casing escape port 1521 corresponding with the connecting terminal 242 on power panel 240, both ensure that frequency changer was tight Gathering property, and wiring will not be interfered.In addition, having structure simply special by 154 connection upper casing 120 of lower casing buckle and lower casing 110 Point, and upper casing lip 151 and lower casing lip 152 can also play the role of guiding, reduce assembly difficulty.

Detailed description of the invention

Fig. 1 is the exploded view of the first embodiment of the utility model frequency converter；

Fig. 2 is the exploded view of second of embodiment of the utility model frequency converter；

Fig. 3 is the sectional view of second of embodiment of the utility model frequency converter；

Fig. 4 is the structural schematic diagram of the utility model power module；

Fig. 5 is the structural schematic diagram in the utility model lower casing；

Fig. 6 is the cooperation schematic diagram of the utility model partition and radiator；

Fig. 7 is the cooperation schematic diagram of the utility model lower casing and slide plate；

Fig. 8 is the structural schematic diagram of the utility model fan assembly；

Fig. 9 is the cooperation schematic diagram of the utility model partition and power panel；

Figure 10 is the structural schematic diagram of the utility model power panel；

Figure 11 is the cooperation schematic diagram of the utility model power panel and capacitor board；

Figure 12 is the structural schematic diagram of the utility model supporting plate；

Figure 13 is the cooperation schematic diagram that the utility model becomes supporting plate and CPU board；

Figure 14 is the structural schematic diagram of the utility model upper casing；

Figure 15 is the structural schematic diagram of the utility model hub cap；

Figure 16 is the structural schematic diagram of the utility model control panel box；

Figure 17 is the structural schematic diagram of the utility model waterproof case；

Figure 18 is the structural schematic diagram of the utility model heat dissipation ground strip；

Figure 19 is the structural schematic diagram of the utility model heat dissipation ground strip side；

Figure 20 is the structural schematic diagram of the utility model supporting plate；

Figure 21 is the structural schematic diagram at the utility model waterproof case back side；

Figure 22 is the structural schematic diagram of the inside of the utility model upper casing；

Figure 23 is the schematic diagram of the utility model slide plate and track cooperation；

Figure 24 is the structural schematic diagram of the utility model ventilation slot；

Figure 25 is the partial cross-sectional view of the utility model Figure 24；

Figure 26 is the partial enlarged view of the utility model Fig. 1；

Figure 27 is the partial enlarged view of the utility model Fig. 3；

Figure 28 is the partial enlarged view of the utility model Figure 23.

Specific embodiment

Below in conjunction with the embodiment that attached drawing 1 to 28 provides, the shell structure of the frequency converter of the utility model is further illustrated Specific embodiment.The shell structure of the frequency converter of the utility model is not limited to the following description.

If Fig. 1-2 shows the embodiment of two kinds of frequency converters, frequency converter includes the shell that lower casing 110 and upper casing 120 form, And in the intracorporal CPU board 210 of shell, power module 2 and radiating module, power module 2 is that CPU board 210 is powered while by dissipating Thermal modules radiate, and power module 2 includes the capacitor board 230 and power panel 240 of split settings, and radiating module includes radiator 260 and fan assembly 270, CPU board 210, capacitor board 230, power panel 240 and radiator 260 from top to bottom set gradually.

The frequency converter of the utility model, by the way that the bigger power module 2 of horizontal area is split into two panels split settings Power panel 240 and capacitor board 230,2 the space occupied of power module, and power panel 240 and capacitor board can be effectively reduced Circuit distribution on 230 rationally will not influence the electric property of frequency converter.The power panel 240 and capacitor board 230 can hang down Straight setting, is preferably stacked, and if Fig. 4 shows the embodiment being stacked, power panel 240 and capacitor board 230 are stacked, Capacitor board 230 tips upside down on the top of power panel 240, and one end of capacitor board 230 is equipped with electrolytic capacitor 231, power panel 240 in bottom side The lower section i.e. side of electrolytic capacitor 231 of 230 other end of capacitor board is set, is set in capacitor board 230 and the inside of power panel 240 There are electronic component and connector, power panel 240 is connect by connector with the bottom side of capacitor board 230, the one of power panel 240 End is equipped with the escape groove 241 cooperated with electrolytic capacitor 231, and the other end is equipped with the connecting terminal for extending to 230 outside of capacitor board 242, reserve the space of back-off to electrolytic capacitor 231 in structure by power panel 240, while connecting and supporting by connector The capacitor board 230 for tipping upside down on top, efficiently utilizes the vertical space inside frequency converter complete machine, not only has complete machine structure tight It gathers, feature small in size, and reliability is higher, safety distance is not limited between by horizontal space and line, is installed also very convenient.

As shown in figs. 9-11, the connector includes the long contact pin 243 and multiple connection copper that 240 top side of power panel is arranged in One end of column 244, long contact pin 243 is fixedly connected with power panel 240, is equipped on capacitor board 230 mating with long contact pin 243 Socket 2430, connection copper post 244 one end be fixedly connected with power panel 240, the other end equipped with threaded hole and with capacitor board 230 Bottom side offset, on capacitor board 230 be equipped with the pillar screw 2440 that copper post 244 is fixedly connected is connect with branch, pass through multiple companies It connects copper post 244 and connects capacitor board 230 and power panel 240, can be assembled into capacitor board 230 and power panel 240 has centainly The structure of intensity first can assemble power panel 240 and capacitor board 230 outside shell in assembly, then by power panel 240 It is encased in shell with capacitor board 230 as an individual structure, can be effectively reduced the difficulty of assembly, improves assembly effect Rate.

As shown in figure 3, integrally formed with partition 111 in the lower case 110, partition 111 is arranged in radiator 260 and electricity Between source plate 240, radiator 260 is fixedly connected by screw with the bottom side of partition 111, and partition 111 is equipped with and electrolytic capacitor The partition escape port 115 of 231 cooperations, and the bulkhead apertures 113 cooperated with radiator 260, it is fixed to be equipped in the top side of partition 111 Position axis 112, is equipped with the location hole 1120 cooperated with locating shaft 112, capacitor board 230 is equipped with and locating shaft on power panel 240 112 positioning screws 1121 being fixedly connected, after locating shaft 112 initially passes through location hole 1120, then will be electric by positioning screw 1121 Hold plate 230 be fixedly connected with locating shaft 112, can using limited space to power panel 240 and capacitor board 230 carry out position with It installs, not only better reliability, but also unnecessary space will not be occupied again, naturally it is also possible to which partition is replaced using other way 111 are fixedly mounted on power panel 240 and capacitor board 230 in shell, belong to the protection scope of the utility model.

Further, insulating paper 250 is equipped between the partition 111 above radiator 260 and power panel 240, by exhausted Edge paper 250 improves the electrical isolation between radiating module and power panel 240, has the characteristics that occupy little space, low cost.

As depicted in figs. 18-19, heat dissipation ground strip is equipped in lower casing 110, heat dissipation ground strip includes connecting with radiator 260 Ground connection fixed part 262, and extend to across bulkhead apertures 113 the ground connection wire connecting portion 261 of 111 top side of partition, fixed in ground connection Portion 262 is equipped with the ground connection fixing screws 2621 connecting with radiator 260, is equipped in ground connection wire connecting portion 261 and matches with partition 111 The ground connection terminal screw 2611 of conjunction is equipped with the lower casing insert nut 2612 connecting with ground connection terminal screw 2611 on partition 111 Or threaded hole, the ground connection wiring hole 2610 with heat dissipation ground strip cooperation, the outer wall of lower casing 110 are equipped on the side wall of lower casing 110 The corresponding side in ground connection wiring hole 2610 is equipped with ground connection mark 2613, is equipped on the roof of upper casing 120 and ground connection wiring spiral shell 2611 corresponding ground connection handle hole (not shown)s are followed closely, ground strip is hidden in shell by that will radiate, external earth lead Ground connection wiring hole 2610 can be passed through and reach 2611 lower section of ground connection terminal screw, be grounded by ground connection terminal screw 2611 and heat dissipation Piece is fixed, and is had safe and reliable, easy to operate.

Further, the roof of upper casing 120 ground connection handle hole to radiate ground strip ground connection wire connecting portion 261 gap it is small In the length of ground connection terminal screw 2611, guarantee that ground connection handle hole can play blocking when exiting in ground connection terminal screw 2611 Effect, make be grounded terminal screw 2611 will not fall in shell.The length for being wherein grounded terminal screw 2611 is preferably The gap of 8MM, ground connection handle hole to ground connection wire connecting portion 261 are preferably 6MM, when ground connection terminal screw 2611 falls back on 6MM, ground connection The cap nut of terminal screw 2611 is just grounded handle hole and blocks.

Further, the ground connection wire connecting portion 261 is connected with ground connection 262 l-shaped of fixed part, is grounded the side of wire connecting portion 261 It is arranged to the orientation of the connecting terminal 242 on power panel 240, is grounded the end of wire connecting portion 261 from connecting terminal 242 1 The lower section at end is stretched out, and ground connection terminal screw 2611 is arranged on the end of ground connection wire connecting portion 261, passes through L-shaped heat dissipation ground strip To avoid the connecting terminal 242 on the power panel 240 of top, frequency converter screws ground connection with still can be convenient and connects after assembling 2611 pairs of line screw external earth leads are fixed, and do not need to dismantle in frequency converter.

Further, the angle that the locating shaft 112 is arranged in ground connection wire connecting portion 261 and is grounded between fixed part 262, It can guarantee to connect with the corner position of power panel 240 and capacitor board 230, to form reliable connection relationship, while again will not Unnecessary space is occupied, is additionally provided with isolation boss 263 in the side of locating shaft 112, isolation boss 263 can be by power panel 240 hold up, and make to keep certain electric clearance between power panel 240 and heat dissipation ground strip, improve the reliability of frequency converter.

Further, the ground connection positioning plate 114 being connected with partition 111 is equipped in the inner wall of lower casing 110, in heat dissipation ground strip Ground connection wire connecting portion 261 be equipped with the ground connection locating slot 1140 cooperated with ground connection positioning plate 114, ground protection plate 114 not only may be used To play the role of protection, but also can be to heat dissipation ground strip limit.

Further, the vertex of the insulating paper 250 is equipped with the insulation escape port of evacuation ground connection terminal screw 2611 251, the insulation barrier 252 cooperated with ground connection positioning plate 114 is equipped at the edge of insulation escape port 251, insulation barrier 252 is not only It can be improved the electric clearance between heat dissipation ground strip and power panel 240, and can improve and connect with the ground connection cooperation of positioning plate 114 Airtightness and insulating properties near ground wiring hole 2610.

As shown in Fig. 2-3,11-13, one end of 210 top side of CPU board is equipped with knob 212, microswitch 214 and by number The display 211 of pipe composition, the other end are equipped with CPU board connecting terminal 213, and support is equipped between CPU board 210 and capacitor board 230 Plate 220, the top side of supporting plate 220 are equipped with the upper supporting piece 221 cooperated with CPU board 210, and CPU board 210 is equipped with and upper supporting piece The attachment screws 223 of 221 connections, bottom side are equipped with the buckle 225 that connect with capacitor board 230, and under the cooperation of capacitor board 230 Supporting element 228 can not only increase CPU board 210 and power supply by the way that supporting plate 220 is arranged between CPU board 210 and power module 2 Electric clearance between module 2 avoids interfering with each other and plays the role of isolation, and supporting plate 220 can also play CPU board 210 To fixed effect.Certainly, the bottom side of supporting plate 220 can also replace buckle 225 to connect with capacitor board 230 by screw, still It will increase the difficulty of assembly.

Specifically, four apex angles of supporting plate 220 are arranged in the upper supporting piece 221, set on one of supporting element 221 There is CPU insert nut 2240, CPU board 210 is equipped with the CPU earthing screw 224, Yi Jiyu cooperated with CPU insert nut 2240 Three attachment screws 223 of its excess-three upper supporting piece 221 cooperation, CPU board 210 are grounded by CPU earthing screw 224 and CPU Nut 2240 connect (not shown) ground connection with CPU ground connection inserts, and supporting plate 220, which can also play, fixes CPU ground connection inserts Effect, the volume of further compact frequency converter simultaneously reduces assembly difficulty.

Further, it is equipped with positioning column 222 at the middle part of supporting plate 220, is equipped on CPU board 210 and cooperates with positioning column 222 Location hole (not shown), the cooperation of location hole and positioning column 222 can limit CPU board 210, improve reliability And reduce difficulty when assembly, naturally it is also possible to be not provided with positioning column 222.

If Figure 20 shows the structure of 220 bottom side of supporting plate, the middle part of the lower support element 228 is equipped with guide post 226, capacitor board 230 are equipped with the pilot hole 2260 cooperated with guide post 226, are formed and pilot hole 2260 between lower support element 228 and buckle 225 The card slot 227 of edge mate, the buckle slot 2250 cooperated with buckle 225 is equipped at the edge of capacitor board 230, and guide post 226 is worn Crossing pilot hole 2260 enables the bottom side of 228 surrounding of lower support element to be against the limit realized in height on capacitor board 230, leads simultaneously More reliable connection can be formed by snapping onto the marginal portion in hole 2260 in card slot 227, not needing screw can be by supporting plate 220 are fixed on capacitor board 230.

As shown in figure 3, being equipped with the key being correspondingly arranged with the microswitch 214 on CPU board 210 in the top side of upper casing 120 Panel 121 (Fig. 1) is equipped with the guide post 122 being arranged perpendicular to CPU board 210 between key panel 121 and microswitch 214, leads The bottom end of column 122 is against on microswitch 214, and top is equipped with the pressure cap 123 cooperated with key panel 121, on the top of upper casing 120 Side is equipped with the counterbore 1230 cooperated with pressure cap 123, and the guide hole 1220 cooperated with guide post 122, pressure are equipped in the bottom of counterbore 1230 The bottom side of cap 123 and the interval of counterbore 1230 are arranged, and the bottom side of pressure cap 123 and counterbore 1230 have certain interval, can not only effectively more It mends in assembling process, due to welding etc. between CPU board 210, power panel 240, capacitor board 230, supporting plate 220 and partition 111 Connection processes and generates the systematic error in height, prevents microswitch 214 from failing, and improve the flexibility of key, and presses The contact area of cap 123 is also bigger, can smoothly press in any position, even if the marginal position of pressing keys panel 121 It will not be by sky.

Further, the guide post 122 is opened wide at tubular, the bottom of guide post 122 towards microswitch 214, and tubular is led Column 122 has the characteristics that light weight and cost is low, is not easy that friction and Caton occurs with shell.

Further, the outer diameter of the guide post 122 is slightly larger than the width in 214 topside contacts portion of microswitch, guarantees pressing When pressure transmitting it is more stable, feeling is better.

Further, the inner wall of the shell is equipped with the guide ledges 1210 at "convex" shaped, counterbore 1230 and guide hole 1220 are arranged in guide ledges 1210, can avoid doing with the space of compact enclosure interior by the setting of guide ledges 1210 Relate to other parts such as display.

The bottom side of the first embodiment of radiating module as show Fig. 2-3,230 one end of capacitor board is equipped with electrolytic capacitor 231, it is equipped with power panel 240 and radiator 260 in the lower section of the other end of capacitor board 230, radiator 260 is arranged in power panel 240 lower section and it is directed downward setting, radiator 260 includes radiating seat and multiple is disposed side by side on dissipating for radiating seat bottom side Backing, the top side of radiating seat and partition 111 cooperate, and are equipped with bottom plate 116 in the lower section of radiator 260, bottom plate 116 is equipped with and dissipates The thermovent 117 that hot device 260 cooperates is equipped with the fan assembly 270 cooperated with radiator 260, blower fan group in the outside of bottom plate 116 Part 270 includes the fan shroud 271 being fixedly connected with bottom plate 116 and the blower 272 being arranged in fan shroud 271, fan shroud 271 At U-shaped, blower 272 is fixedly connected with the middle part of fan shroud 271, is equipped with the row for air circulation at the middle part of fan shroud 271 Port, the both ends of fan shroud 271 are fixedly connected by screw with bottom plate 116 to flange, flange is externally provided with, by by fan assembly 270 are arranged in the outside of the bottom of shell and 260 pairs of radiator cooperations, and not only occupied space is smaller, volume is more compact, but also dissipates Thermal effect is also more preferable, in addition, after blower 272 is first fixedly connected with fan shroud 271, then by 271 conduct of blower 272 and fan shroud One entirety is refilled and is fitted on shell, also has the characteristics that assembly difficulty is low, high-efficient.

Further, the inside of the side wall of the lower casing 110 is equipped with the fixation being fixedly connected with four apex angles of bottom plate 116 Column 118, the edge of lower casing 110 extends downward the blower baffle 273 in the surrounding formation frame-type of fan assembly 270, in blower The blower baffle 273 of two sides is equipped with baffle air port 2730 in 270 horizontal direction of component, and blower baffle 273 can prevent water droplet It is entered in fan assembly 270 with dust.

Fig. 1,8,23 show second of embodiment of radiating module, and the lower section of power panel 240 is arranged in radiator 260, Radiator 260 is arranged downward, and the right side of the lower section of electrolytic capacitor 231, radiator 260, the lower casing is arranged in fan assembly 270 110 at frame shape, and the bottom of lower casing 110 is equipped with the fixed plate 281 being fixedly connected in the lower section of radiator 260, in fixed plate 281 Bottom side is equipped with the fixing groove 282 cooperated with track 287, in sliding slot 284 of the side of fixing groove 282 equipped with connection, sliding slot 284 Equipped with moveable slide plate 283,282 sets of fixing groove are passed through afterwards on track 287 283 clamping track 287 of slide plate for frequency converter It is fixed on track 287, and lower casing 110 is equipped with screw mounting hole, screw can also be passed through to screw mounting hole by frequency conversion Device is fixed on workplace.The frequency converter of present embodiment enables frequency converter by the way that fixing groove 282 and slide plate 283 is arranged in bottom It is enough directly to snap fit on track 287, convenient for the installation of frequency converter, and the installation side conventionally by the fixed frequency converter of screw is not influenced Formula, while the CPU board 210, capacitor board 230 and the power panel 240 that are stacked can reduce the sky that frequency converter horizontally occupies Between, the width of frequency converter is effectively reduced, the torque for applying frequency converter when being installed on track 287 by slide plate is more reliable. In addition, fixed plate 281 is surrounded by the fixed plate buckle 2842 and fixed plate connecting hole 2843 connecting with shell bottom side, it is described The middle part of the bottom side of fixed plate 281 is arranged in fixing groove 282 and sliding slot 284, has the characteristics that reliable convenient for assembling, connecting.

Specifically, the lower casing 110 is equipped with the blower slot 2710 for accommodating fan shroud 271, the middle part of the fan shroud 271 Equipped with the exhaust outlet for air circulation, it is equipped with the plate 274 of insertion lower casing 110 at the both ends of fan shroud 271, in plate 274 It is equipped with inclined snap-gauge 275 outward, the fan shroud card being engaged by clamping with 110 inner wall of lower casing is equipped in the outside of snap-gauge 275 Button 276, is equipped with position-limited wing 277 in the end of snap-gauge 275, is equipped with 278 He of fan shroud mounting hole simultaneously in the inside of fan shroud 271 Fan shroud positioning column 279, fan shroud positioning column 279 can play the role of positioning fan shroud 271, and screw can pass through blower Fan shroud 271 is fixed in lower casing 110 by cover mounting hole 278, can also pass through the wind on the plate 274 at 271 both ends of fan shroud Hood 276 is fixed in lower casing 110, the two can select one using and also be used in mixed way, there is flexibility and reliability, easy-to-dismount Feature.

Further, as shown in figure 23, the mounting screw holes for fixing frequency converter is equipped in the apex angle of lower casing 110 1100, the middle position of 110 bottom of lower casing is arranged in slide plate 283, and frequency converter both can be installed to track 287 by slide plate 283 On, mounting screw holes 1100 can also be passed through by screw and frequency converter is fixed on workplace, flexibility is very high, when So, it can also be not provided with mounting screw holes 1100, the protection scope of the utility model is only also belonged to by the installation of slide plate 283.

As a kind of embodiment of slide plate 283, slide plate 283 includes into the sliding rack 2831 of frame-shaped construction, sliding rack The outside of 2831 one end is equipped with the flanging 2836 for extending into trapped orbit 287 in fixing groove 282, and the outside of the other end is equipped with from cunning The slide plate operation portion 2837 that slot 284 stretches out is equipped with slide plate handle hole 2838, in sliding rack 2831 on slide plate operation portion 2837 Inside is set there are two the elastic arm 2832 being oppositely arranged, and one end of elastic arm 2832 is connected with sliding rack 2831, the other end and cunning Locating piece 2834 in slot 284 cooperates, and is equipped with the multiple slide plates cooperated with elastic arm 2832 in the two sides of locating piece 2834 and positions Slot 2835.By the way that the locating piece 2834 with the fit inside of the sliding rack 2831 of frame-shaped construction is arranged in sliding slot 282, not only account for It is smaller with space, and slide plate 283 does not have spring, completes the locking of position using the elastic force of plastic oneself and back and forth converts, leans on Slide plate 283 can be put into track and de-orbited by push-and-pull slide plate operation portion 2837 back and forth manually, the simple, cost with structure Feature low, installation is reliable.Slide plate 283 is interted in slide plate handle hole 2838, moving slide plate 283 with straight screwdriver sledge makes it The blocking of retreat stop block 2833 is crossed, and makes the elastic arm 2832 on slide plate 283 and 2835 wedge of slide plate locating slot in fixing groove 282 It closes at one piece, and the sliding condition for slide plate 283 of having a try back and forth repeatedly, can hear the card slot sound of click click, at this moment pull out slide plate 283 Come, a line of fixing groove 282 against the track 287 of frequency converter is subdued, by voltage frequency changer and frequency converter is made to be close to track On 287, then push slide plate 283 that the flanging on slide plate 283 is enable to push down the track 287 of iron, at this moment frequency converter can be in track It is slided on 287, will draw outside slide plate 283 when dismounting can disengage track automatically, and track 287 is usually the U-shaped that width is 35mm Structure, the slide plate 283 of present embodiment do not have spring, complete the locking of position using the elastic force of plastic oneself and back and forth convert, Have the characteristics that structure is simple, at low cost, installation is reliable.

Further, it is equipped with retreat stop block 2833 close to the side of fixing groove 282 in locating piece 2834 in the sliding slot 284, The corresponding fit inside between two elastic arms 2832 with sliding rack 2831 of retreat stop block 2833, retreat stop block 2833 is close to fixed The side of slot 282 is equipped with the slide plate stop surface being arranged perpendicular to 283 direction of insertion of slide plate, and retreat stop block 2833 is far from fixing groove 282 side is equipped with the slide plate guide surface for favouring the setting of 283 direction of insertion of slide plate；The slide plate operation portion 2837 is "T"-shaped Structure is equipped with the slide plate locating slot 2841 cooperated with 2837 both ends of slide plate operation portion in the two sides of sliding slot 284.Pass through retreat stop block 2833 and the cooperation of slide plate locating slot 2841 and slide plate 283 can be after slide plate 283 be installed, anti-limited slip plate 283 is de- from shell It falls, it is of course also possible to be not provided with slide plate locating slot 2841.Only matched by slide plate locating slot 2841 and 2837 both ends of slide plate operation portion Conjunction can also play the role of anti-limited slip plate 283 and fall off.

Further, the locating piece 2834 includes multiple positioning components at " X " type structure being sequentially connected end to end in turn, Position gap 2839 is formed between two adjacent positioning components.By being formed between positioning between two adjacent positioning components Gap 2839 can not only save consumptive material when injection molding, have the characteristics that environmental protection and reduce cost, and the elasticity of locating piece 2834 Also more preferable, have the characteristics that be less likely to be damaged and position more reliable.

It further, further include reinforcement block 2840 with the cooperation of the positioning component of least significant end, reinforcement block 2840 adds at U-shaped The both ends of strong block 2840 are fixedly connected with both ends out vacant on positioning component respectively.It can not only be into one by reinforcement block 2840 Step improves the elasticity and intensity of locating piece 2833, and can also optimize the flow direction of colloid in a mold in injection molding, mentions High injection molding quality, and then and improve positioning component intensity.

As shown in figures 24-25, the side wall of 120 two sides of upper casing is equipped with the electronics with 240 inside of capacitor board 230 and power panel The corresponding multiple ventilation slots 161 of component, multiple ventilation slots 161 are set side by side along the vertical direction, the multiple ventilation slot 16 to Case inside recess, is equipped with into semicircular arc to the water blocking member 162 of 161 internal projection of ventilation slot on the bottom wall of ventilation slot 161, makes The bottom width of ventilation slot 161 is less than the width at the top of ventilation slot 161, can be from when making water droplet from angle drippage within 15 degree It slides, is may not flow into casing in water blocking member 162, play the effect of IP grade 22, improve the degree of protection of frequency converter.

Further, the bottom width of ventilation slot 161 is less than or equal to the 1/2 of the width at 161 top of ventilation slot, improves anti- The effect of water.

Further, need to rotate 90 degree of states to setting when frequency converter works, at this time the top of capacitor board 230 Equipped with electrolytic capacitor 231, the side of 230 bottom end of capacitor board is arranged in power panel 240, and one end of power panel 240 is equipped with and electrolysis The escape groove 241 that capacitor 231 cooperates, the other end are equipped with the connecting terminal 242 for extending to 230 lower section of capacitor board, the ventilation slot 161 It is correspondingly arranged between connecting terminal 242 and electrolytic capacitor 231, ventilation slot 161 can not only play the effect of waterproof, and will not Influence the heat dissipation and ventilation of frequency converter.

Further, the roof of the ventilation slot 161 tilts down setting in the horizontal direction, can further increase waterproof Effect.

As shown in Figure 14-17,21, the side of radiator 260 is arranged in fan assembly 270, i.e. the setting of fan assembly 270 exists The top side of lower casing 110, the top side of upper casing 120 are equipped with the control panel box 130 adjacent with fan assembly 270, and control panel box 130 can be outer It connects expansion card and carrys out expanded functionality, be equipped with hub cap 124 and serum cap 1244 in the bottom side of upper casing 120, be equipped at the back side of hub cap 124 Digital label 1241, CPU terminal character placard 1242 and input and output terminal label 1243, in control panel box 130 and blower fan group The top of part 270 is equipped with waterproof case 140, and waterproof case 140 includes into U-shaped tip upside down on above splash guard box 130 and fan assembly 270 Waterproof 141, waterproof 141 and shell top side interval be arranged, and the inside of waterproof 141 is equipped with 142 He of connecting plate Connecting column 143, the area of waterproof 141 are greater than the area of shell upper casing top side, i.e. the periphery of waterproof 141 can extend to The outside of entire shell, connecting plate 142 and connecting column 143 are respectively provided at both sides, the wind of connecting column 143 and fan assembly 270 Hood 271 connects, and the end face of connecting column 143 is equipped with the limited post 1431 with the edge mate of the exhaust outlet of fan shroud 271, leads to The top that waterproof 141 is arranged at intervals on fan assembly 270 by connecting column 143 is crossed, guarantee does not stop 270 top of fan assembly The flowing of air, while will not be entered in shell from fan shroud 271 when water droplet is vertical or is dripped with 15 degree of angles, it improves To IP22, play the role of good water proof and dust proof, and waterproof case 140 is arranged outside shell, do not need using when can also be square Just it dismantles.

Specifically, including the connecting plate 142 that two two be oppositely arranged are oppositely arranged, two connecting plates 142 are clipped in control The two sides of making sheet box 130 are clipped in the two sides mating connection column 143 of control panel box 130 by two connecting plates 142 and frequency converter are pacified Dress is fixed, and is had the characteristics that easy for installation, at low cost.Further, bar shaped muscle is respectively equipped in the inside of two connecting plates 142 144, bar shaped muscle 144 is horizontally disposed with perpendicular to by 140 installation direction of waterproof case, is equipped with and bar shaped in the two sides of control panel box 130 The connecting groove 146 that muscle 144 cooperates, waterproof 141 are detachably connected by connecting plate 142 with control panel box 130, the other side The bottom of connecting column 143 be against on the fan shroud 271 of fan assembly 270, and it is convex to be equipped with the fixation cooperated with fan shroud 271 It rises, the bar shaped muscle 144 on connecting plate 142 on control panel box 130 can be caught in the connecting groove that 130 two sides of control panel box are set It is fixed in 146, keep the fixation of waterproof 141 stronger, furthermore, it is not necessary that screw is just capable of fixing the shell in frequency converter On.Certainly, connecting plate 142 can not also connect with upper casing 120 and be directly clamped among on the shell of control panel box 130, can also not Connecting plate 142 is set, and the two sides of waterproof 141 can also all directly be connect with shell by connecting column 143, connecting column 143 The protection scope of the utility model can also be belonged to using with by the way of shell plug connection.

As shown in Fig. 1,22, the edge of the 120 bottom end surrounding of upper casing is equipped with extend downwardly made of upper casing lip 151, The upper casing lip slot 1510 cooperated with lower casing 110 is formed in the inside of upper casing lip 151, at the edge of 110 top surrounding of lower casing Equipped with the lower casing lip 152 cooperated made of upwardly extending with upper casing lip slot 1510, formed under the outside of lower casing lip 152 The lower casing lip slot 1520 cooperated with upper casing lip 151, the upper casing die joint A on the top of upper casing lip 151 to upper casing 120 away from It being equidistant and is all larger than or equal to 7mm from the lower casing die joint B for being equal to the bottom end of lower casing lip 152 to lower casing 110, on After shell 120 and lower casing 110 close shell, upper casing lip 151 is simultaneous when carrying out electromagnetism to frequency converter together with 152 fitting of lower casing lip When holding test (EMC), when gap of the head pulse between upper casing 120 and lower casing 110, pass through upper casing lip 151 and lower casing lip Side 152 can greatly increase the creepage distance between head pulse and the intracorporal wiring board of shell, will not damage the electronics member on route Device interferes the Comprehensive Assessment of size (EMI) and anti-interference ability (EMS) in terms of effectively improving the electromagnetic field of frequency converter.

Further, in the lower casing lip 152 of side be equipped with it is corresponding with the connecting terminal 242 on power panel 240 under Shell escape port 1521 is equipped with wiring through-hole 1522 corresponding with connecting terminal 242 in upper casing lip 151, both ensure that frequency converter Structural compactness, and wiring will not be interfered.

Further, by 154 connection of lower casing buckle, the outside of the lower casing lip 152 is set for upper casing 120 and lower casing 110 There is lower casing link slot 153, is equipped with lower casing buckle 154 on the top of lower casing link slot 153, the bottom of upper casing 120 is equipped with and lower casing The upper casing buckle slot 1540 of 154 cooperation of buckle is equipped in the outside of upper casing lip 151 and leads with the upper casing of 154 cooperation of lower casing buckle To slot 155, have the characteristics that structure is simple by 154 connection upper casing 120 of lower casing buckle and lower casing 110, and lower casing link slot 153 can also further increase the creepage distance that lower casing buckles 154 positions, guarantee that upper casing 120 and lower casing 110 will not be because of lower casings The connection of buckle 154 and reduce the anti-interference ability of frequency converter.

The assembling process of frequency converter embodiment as seen in figs. 5-6 first installs radiator 260 in Fig. 1 as show Fig. 5-17 Into lower casing 110, and pass through the bottom side that radiator 260 is fixed on partition 111 by radiator screw 2600, then as shown in Figure 7 Start to assemble radiating module, slide plate 283 be installed on bottom plate 281, then bottom plate 281 is fixed on lower casing 110 by screw, Then as shown in figure 8, blower 272 is installed in fan shroud 271, then blower 272 and fan shroud 271 1 is packaged to lower casing In 110, and it is by screw or fan shroud buckle 276 that fan shroud 271 and lower casing 110 is fixed, it then as shown in figure 9, will insulation Paper 250 is attached to the top side of partition 111, then as shown in figure 11, by the good electricity of the good power panel 240 of Combination Welding and Combination Welding Hold plate 230 and be assembled to one piece, forms a power module 2, the size of entire power module 2 is made to become smaller, power panel 240 and electricity Hold plate 230 to connect by connector and connection copper post 244, and then as illustrated by figs. 12-13 becoming a power supply mainboard will hold in the palm Plate 220 is screwed by the top side and fastening for being pressed into capacitor board 230, then by the CPU board 210 being welded in supporting plate 220 Top side, then as shown in figs. 14-15, by serum cap 1244, CPU terminal character placard 1242, digital label 1241, input and output The packaged designated position to upper casing 120 of terminal label 1243, knob 212, house mark, key panel 121 all one, then as schemed Shown in 15, hub cap 124 is attached to upper casing 120, rotates after lower upper cover 124 checks flexibility and buckles well, then as shown in figure 16, will expand Panel box 130 is attached by screws on shell, increases expansion board by expansion board and 130, can be increased such as water supply type, communication Then as shown in figure 17 waterproof case 140 with IP22 is anchored on control panel box 130, control panel box by card, the functions such as PG card Connecting groove 146 between 130 and waterproof case 140 carves conjunction closely, does not fall out, moreover it is possible to extend the IP waterproofing grade of shell.

The difference of frequency converter embodiment is the dress of radiating module in the assembling process of frequency converter embodiment and Fig. 1 in Fig. 2 With process difference, bottom plate 116 is fixed on to the bottom side of lower casing 110 after radiator 260 and shell are fixed, it then will be assembled Fan assembly 270 is installed to the bottom side of bottom plate 116, then starts identical assembling process as shown in Figure 9.

It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims (10)

1. a kind of shell structure of frequency converter including the shell that upper casing (120) and lower casing (110) form, and is arranged in shell Interior CPU board (210), power module (2) and radiator (260), power module (2) are CPU board (210) power supply, and feature exists In: power module (2) includes the capacitor board (230) and power panel (240) being stacked, in capacitor board (230) and power panel (240) inside is equipped with electronic component and connector, and capacitor board (230) and CPU board (210) setting are in upper casing (120), electricity Hold plate (230) setting in the lower section of CPU board (210), power panel (240) and radiator (260) setting are in lower casing (110), electricity Source plate (240) setting in the top of radiator (260), the edge of upper casing (120) bottom end surrounding is equipped with extend downwardly made of on Shell lip (151) forms the upper casing lip slot (1510) with lower casing (110) cooperation in the inside of upper casing lip (151), in lower casing (110) edge of top surrounding be equipped with upwardly extend made of with upper casing lip slot (1510) cooperation lower casing lip (152), The lower casing lip slot (1520) with upper casing lip (151) cooperation, upper casing lip (151) are formed under the outside of lower casing lip (152) Height be equal to lower casing lip (152) height and be all larger than or be equal to 7mm.

2. the shell structure of frequency converter according to claim 1, it is characterised in that: the bottom of described capacitor board (230) one end Side is equipped with electrolytic capacitor (231), and power panel (240) is arranged in the lower section of the other end of capacitor board (230), power panel (240) One end is equipped with the escape groove (241) cooperated with electrolytic capacitor (231), and the other end is equipped with the wiring extended on the outside of capacitor board (230) Terminal (242) is equipped with lower casing corresponding with connecting terminal (242) on power panel (240) in the lower casing lip (152) of side Escape port (1521) is equipped with wiring through-hole (1522) corresponding with connecting terminal (242) in upper casing lip (151).

3. the shell structure of frequency converter according to claim 1, it is characterised in that: the outside of the lower casing lip (152) Equipped with lower casing link slot (153), lower casing buckle (154), the bottom of upper casing (120) are equipped on the top of lower casing link slot (153) Equipped with the upper casing buckle slot (1540) for buckling (154) cooperation with lower casing, it is equipped in the outside of upper casing lip (151) and is buckled with lower casing (154) the upper casing guide groove (155) cooperated.

4. the shell structure of frequency converter according to claim 1, it is characterised in that: the radiator (260) and power panel (240) partition (111) are equipped between, partition (111) is equipped with the bulkhead apertures (113) cooperated with radiator (260), in partition (111) top side is equipped with locating shaft (112), and the location hole cooperated with locating shaft (112) is equipped on power panel (240) (1120), locating shaft (112) passes through location hole (1120) and connect with capacitor board (230), and capacitor board (230) is equipped with and locating shaft (112) positioning screw (1121) being fixedly connected is equipped with connection copper post (244) in the top side of power panel (240), in capacitor board (230) pillar screw (2440) for being equipped with and connecting copper post (244) and being fixedly connected.

5. the shell structure of frequency converter according to claim 4, it is characterised in that: be equipped with heat dissipation ground strip in shell, dissipate Hot ground strip includes the ground connection fixed part (262) connecting with radiator (260), and passes through bulkhead apertures (113) and extend to partition (111) the ground connection wire connecting portion (261) of top side is equipped with the ground connection wiring spiral shell connecting with partition (111) on ground connection wire connecting portion (261) It follows closely (2611), the ground connection wiring hole (2610) with heat dissipation ground strip cooperation is equipped on the side wall of shell.

6. the shell structure of frequency converter according to claim 1, it is characterised in that: the side of radiator (260) is equipped with wind Thermomechanical components (270), the top of fan assembly (270) are equipped with waterproof case (140), and waterproof case (140), which includes into, U-shaped tips upside down on shell The spaced waterproof in top side (141) is equipped with the fan shroud with fan assembly (270) in the inside of waterproof (141) (271) connecting column (143) connected, the end face of connecting column (143) are equipped with the edge mate with the exhaust outlet of fan shroud (271) Limited post (1431), the area of waterproof (141) is greater than the area of the top side of shell.

7. the shell structure of frequency converter according to claim 6, it is characterised in that: the fan assembly (270) includes wind The middle part of hood (271) and the blower (272) being arranged in fan shroud (271), fan shroud (271) is equipped with exhaust outlet, in wind The both ends of hood (271) are equipped with the insertion intracorporal plate of shell (274), and inclined snap-gauge outward is equipped on plate (274) (275), the fan shroud buckle (276) being engaged by clamping with inner walls is equipped in the outside of snap-gauge (275), in snap-gauge (275) End is equipped with position-limited wing (277), is equipped with fan shroud mounting hole (278) and fan shroud positioning simultaneously in the inside of fan shroud (271) Column (279), screw can pass through fan shroud mounting hole (278) and fan shroud (271) are fixed in lower casing (110).

8. the shell structure of frequency converter according to claim 1, it is characterised in that: the CPU board (210) and capacitor board (230) supporting plate (220) are equipped between；The top side of supporting plate (220) is equipped with the upper supporting piece (221) cooperated with CPU board (210), on Four apex angles in supporting plate (220) are arranged in supporting element (221), and one of supporting element (221) is equipped with CPU grounding nut (2240), CPU board (210) is equipped with the CPU earthing screw (224) that connect with CPU grounding nut (2240), and with its excess-three Three attachment screws (223) of a upper supporting piece (221) connection, CPU board (210) are connect by CPU earthing screw (224) and CPU Ground nut (2240) is connect with CPU ground connection inserts；The bottom side of supporting plate (220) is equipped with the buckle connecting with capacitor board (230) (225), and the lower support element (228) with capacitor board (230) cooperation, the middle part of lower support element (228) are equipped with guide post (226), capacitor board (230) is equipped with the pilot hole (2260) cooperated with guide post (226), in lower support element (228) and buckle (225) card slot (227) with pilot hole (2260) edge mate is formed between.

9. the shell structure of frequency converter according to claim 1, it is characterised in that: the top side of shell is equipped with and CPU board (210) key panel (121) that microswitch (214) is correspondingly arranged, key panel (121) and microswitch (214) it Between be equipped with the guide post (122) that is arranged perpendicular to CPU board (210), the bottom end of guide post (122) is against on microswitch (214), top Equipped with the pressure cap (123) cooperated with key panel (121), the counterbore (1230) cooperated with pressure cap (123) is equipped on shell, The bottom of counterbore (1230) is equipped with the guide hole (1220) cooperated with guide post (122), between the bottom side and counterbore (1230) of pressure cap (123) Every setting.

10. the shell structure of -9 any frequency converters according to claim 1, it is characterised in that: the shell includes lower casing (110) it is arranged in lower casing (110) with upper casing (120), power panel (240), radiator (260) and fan assembly (270), capacitor The bottom side of plate (230) right end is equipped with electrolytic capacitor (231), and power panel (240) is arranged under the other end of capacitor board (230) Side, lower casing (110) are equipped with partition (111), power panel (240) and capacitor board between power panel (240) and radiator (260) (230) it is fixedly connected, capacitor board (230) is fixedly connected with partition (111) again, and fan assembly (270) is arranged in radiator (260) Right end and corresponding in the lower section of electrolytic capacitor (231), fixed plate (281) is connect with the bottom end of lower casing (110), slide plate (283) it is arranged in the left end of fixed plate (281).