CN222852540U - Driver and motor drive system - Google Patents

Abstract

The utility model discloses a driver and a motor driving system, wherein the driver comprises a radiator, a control panel and a fan, the radiator comprises a main body and a heat conducting bracket, the main body is provided with a plurality of radiating fins, the radiating fins define a plurality of air channels on a first side of the radiator, the heat conducting bracket is arranged on the edge of the main body, the control panel is connected to the heat conducting bracket and is positioned on the first side of the radiator, the fan is connected to one side of the main body, which faces the radiating fins, an outlet of the fan is communicated with the air channels, a first rib is arranged on one side of the main body, which is close to the heat conducting bracket, and is arranged along the edge of the main body, the first rib can separate the air channels from the control panel in a mounting area of the heat conducting bracket, and can prevent sundries such as dust from entering the mounting area of the control panel along the air channels through the first rib, so that the risk of damage to electronic devices of the control panel can be effectively reduced, and the reliability and stability of the driver are improved.

Description

Driver and motor driving system

Technical Field

The utility model relates to the technical field of servo driving, in particular to a driver and a motor driving system.

Background

In the related art, a radiator of a driver radiates heat by using radiating fins, and in order to improve the radiating effect, the radiating fins are arranged according to a certain rule to form an air channel, and the heat of the radiating fins is taken away by using a fan. Because sundries such as dust easily enter the driver, when the air flow flows along the air duct to dissipate heat, the sundries such as dust easily accumulate on the circuit board, damage risks are caused to electronic components of the circuit board, and reliability and stability of products are reduced.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the driver provided by the utility model can reduce the entry of sundries such as dust and the like into the circuit board along the air duct, reduce the risk of circuit board faults and has higher reliability and stability.

The utility model also provides a motor driving system comprising the driver.

The driver comprises a radiator, a control board and a fan, wherein the radiator comprises a main body and a heat conducting support, a plurality of radiating fins are arranged on the main body, a plurality of air channels are defined on the first side of the radiator by the radiating fins, the heat conducting support is arranged on the edge of the main body, the control board is connected to the heat conducting support and is located on the first side of the radiator, the fan is connected to the side, facing the radiating fins, of the main body, the outlet of the fan is communicated with the air channels, a first rib is arranged on the side, close to the heat conducting support, of the main body, and the first rib is arranged along the edge of the main body and is configured to separate the air channels from the control board in a mounting area of the heat conducting support.

The driver according to the embodiment of the utility model has at least the following beneficial effects:

The driver utilizes the radiator and the fan to radiate the control panel, the plurality of radiating fins are distributed on the main body of the radiator, a plurality of air channels are defined on the first side of the radiator, the control panel is connected with the heat conducting bracket, heat generated by the control panel can be transferred to the main body through the heat conducting bracket, air flow can flow along the air channels when the fan blows air, thereby taking away the heat of the radiating fins and the main body, the radiating efficiency is high, the first ribs are arranged on one side of the main body, which is close to the heat conducting bracket, and are arranged along the edge of the main body, the first ribs can separate the air channels from the control panel in the installation area of the heat conducting bracket, and the first ribs can prevent sundries such as dust from entering the installation area of the control panel along the air channels, so that the sundries such as dust can be effectively reduced from accumulating on the control panel, thereby reducing the risk of damage to electronic devices of the control panel, and improving the reliability and stability of the driver.

According to some embodiments of the utility model, the driver further comprises a power board connected to the thermally conductive holder and the body and located on a second side of the heat sink.

According to some embodiments of the utility model, the plurality of heat dissipation fins include a plurality of first fins and a plurality of second fins, the plurality of first fins are radially distributed along the direction of the main body towards the heat conduction support, a first air channel is defined between adjacent first fins, the plurality of second fins are distributed at one end of the first air channel away from the heat conduction support, and define a plurality of second air channels communicated with the first air channel, the first ribs are located between an air outlet end of the first air channel and the heat conduction support, the fan is at least partially located in a distribution area of the second fins, an outlet of the fan is arranged towards a first side of the heat sink, and the first air channel and the second air channel are respectively communicated with an outlet of the fan.

According to some embodiments of the utility model, the outer contour of the first rib is wavy along the length of the first rib.

According to some embodiments of the utility model, a bus capacitor is arranged on one side of the power board facing the main body, a notch for avoiding the bus capacitor is arranged on the main body, a plurality of second fins are arranged in parallel along the direction that the main body is away from the heat conducting support, a second air channel is defined between the adjacent second fins, and the second air channel is arranged towards the bus capacitor.

According to some embodiments of the utility model, one end of the power board is connected with the heat conducting bracket, a corner of the other end is provided with a through hole, one end of the main body, which is far away from the heat conducting bracket, is provided with a screw hole and a third rib, and the third rib is arranged along the circumferential direction of the screw hole and is configured to position the corner so that the through hole is correspondingly matched with the screw hole.

According to some embodiments of the utility model, the main body is further provided with a second rib provided on the first side of the heat sink at a position close to the notch, the second rib being configured to separate the wiring of the fan from the notch.

According to some embodiments of the utility model, the driver further comprises a housing, the radiator, the control board, the power board and the fan are respectively arranged in the housing, the housing is provided with an air inlet and an air outlet, the air inlet is positioned at one end face of the housing and is communicated with the inlet of the fan, and the air outlets are respectively positioned at two sides of the housing along the direction perpendicular to the main body and facing the heat conducting bracket.

According to some embodiments of the utility model, the first side of the radiator is provided with a plurality of connecting columns arranged at intervals, the fan is provided with a plurality of connecting holes, and the connecting columns are in one-to-one correspondence and in interference fit connection with the connecting holes.

A motor drive system according to an embodiment of the second aspect of the present utility model includes the drive according to the embodiment of the first aspect described above.

The motor driving system according to the embodiment of the utility model has at least the following beneficial effects:

the motor driving system adopts the driver of embodiment to drive the motor, because the first rib can separate the air duct and the control panel in the installation area of the heat conduction bracket, the first rib can block sundries such as dust and the like from entering the installation area of the control panel along the air duct, and effectively reduce sundries such as dust and the like from accumulating on the control panel, thereby reducing the risk of damage to electronic devices of the control panel, improving the reliability and stability of the driver, and ensuring better durability of the motor driving system.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of a driver according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a driver according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of a heat sink, a circuit board and a fan exploded structure according to an embodiment of the present utility model;

FIG. 4 is a schematic perspective view of a heat sink according to an embodiment of the utility model;

FIG. 5 is a schematic diagram of a front structure of a heat sink according to an embodiment of the utility model;

FIG. 6 is a schematic perspective view illustrating a heat sink and power board assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram showing a front structure of a heat sink and power board assembly according to an embodiment of the utility model;

FIG. 8 is a schematic view of a back side structure of a heat sink and power board assembly according to an embodiment of the utility model;

fig. 9 is an enlarged schematic view at a in fig. 8.

Reference numerals:

The shell 100, the air inlet 110, the air outlet 120, the clamping groove 130;

The radiator 200, the main body 210, the first surface 2101, the connecting plate 211, the screw hole 2111, the third rib 212, the vertical rib 2121, the transverse rib 2122, the heat conducting bracket 220, the cross bar 221, the vertical bar 222, the mounting area 223, the first connecting column 224, the radiating fin 230, the first fin 231, the first air duct 2311, the second fin 232, the second air duct 2321, the first rib 240, the second connecting column 250, the notch 260 and the second rib 270;

Circuit board 300, control board 310, power board 320, bus capacitor 321, via 322;

Fan 400, inlet 410, connection hole 420, trace 430;

A driver 1000.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions, such as directions of up, down, left, right, etc., are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 and 2, the driver 1000 according to the embodiment of the present utility model includes a housing 100, a heat sink 200, a circuit board 300 and a fan 400, wherein the housing 100 has a receiving cavity therein, the heat sink 200, the circuit board 300 and the fan 400 are mounted in the receiving cavity, the heat sink 200, the circuit board 300 and the fan 400 can be protected by the housing 100, and the circuit board 300 and the fan 400 are respectively connected with the heat sink 200. The housing 100 is provided with an air inlet 110 and an air outlet 120, wherein the air inlet 110 communicates with an inlet 410 of the fan 400.

Referring to fig. 3, 4 and 5, the heat sink 200 includes a main body 210 and a heat conductive bracket 220, the front side of the heat sink 200 is a first side of the heat sink 200, the rear side of the heat sink 200 is a second side of the heat sink 200, wherein the main body 210 is a plate structure, the main body 210 is provided with a plurality of heat dissipation fins 230, the plurality of heat dissipation fins 230 are arranged at the front side of the main body 210, the surface of the front side is a first surface 2101, the heat conductive bracket 220 is connected to an edge of an upper end of the main body 210, and the circuit board 300 is connected to the heat conductive bracket 220. The fan 400 is connected to the front side of the main body 210, and the air inlet 110 is located at the front side of the housing 100 and opposite to the inlet 410 of the fan 400. The plurality of heat dissipation fins 230 are arranged at intervals on the first surface 2101, and air channels can be defined between the adjacent heat dissipation fins 230, so that the plurality of air channels are distributed on the first surface 2101 of the main body 210, the air channels are communicated with the outlet of the fan 400, and when the fan 400 works, air enters the accommodating cavity from the air inlet 110, and air flows through the inlet of the fan 400 and then blows to the air channels from the outlet of the fan 400, so that heat of the heat dissipation fins 230 is taken away.

It should be noted that, the main body 210 and the heat conducting bracket 220 are made of a heat conducting material, for example, aluminum, copper, aluminum alloy, etc., in the embodiment, the main body 210 and the heat conducting bracket 220 are in an integrally formed structure, and the heat dissipating fins 230 are integrally formed on the first surface 2101 of the main body 210, so that the whole radiator 200 has higher strength and heat conducting property. The heat generated from the circuit board 300 can be transferred to the main body 210 through the heat conductive bracket 220 and carried away by the fan 400, thereby achieving heat dissipation of the circuit board 300. In some embodiments, the main body 210 and the heat conducting bracket 220 may also be in a split structure, for example, the heat conducting bracket 220 is connected to the main body 210 by a fastener such as a bolt, which is not limited in detail.

It will be appreciated that the circuit board 300 is a printed circuit board (Printed Circuit Board, PCB) equipped with electronic components, also referred to as PCBA board, and the circuit board 300 has heat generating devices, such as rectifier bridge, insulated Gate Bipolar Transistor (IGBT), capacitor and field effect transistor (MOS), and Intelligent Power Module (IPM), when the circuit board 300 is connected to the heat conducting bracket 220, the heat generating devices are disposed on a side of the circuit board 300 facing the heat conducting bracket 220 and connected to the heat conducting bracket 220, heat generated by the heat generating devices can be transferred to the heat conducting bracket 220 during operation, the heat can be transferred to the main body 210 along the heat conducting bracket 220, and the heat dissipation fin 230 of the main body 210 can be quickly dissipated by the fan 400, so that the heat dissipation efficiency is improved, the circuit board 300 can be ensured to operate at a proper temperature, and the reliability of the operation of the driver 1000 is improved.

Referring to fig. 3 and 4, specifically, the heat conducting bracket 220 is a frame, the frame includes a cross bar 221 and two vertical bars 222, the two vertical bars 222 are connected to two ends of the main body 210 along a vertical direction, and two ends of the cross bar 221 are respectively connected to the two vertical bars 222, so that the frame and the main body 210 cooperate to form a closed loop structure. In the embodiment, the vertical rod 222 is provided with a first connecting column 224, and the circuit board 300 is fixedly connected with the first connecting column 224 by a fastener such as a screw, and the heat generating device can be connected to the cross rod 221 or the vertical rod 222 due to the heat conducting property of the whole heat conducting bracket 220. Taking a rectifying bridge as an example, the rectifying bridge is an encapsulation body, pins of the rectifying bridge are connected with a PCB, a heating surface of the rectifying bridge is attached to the surface of the cross rod 221, the rectifying bridge is fixedly connected with the cross rod 221 through screws, and heat generated by the rectifying bridge can be transferred to the cross rod 221 and sequentially transferred to the main body 210 along the cross rod 221 and the vertical rod 222.

Referring to fig. 2 and 3, the circuit board 300 includes a control board 310 and a power board 320, the control board 310 is connected to the front side of the heat conductive bracket 220 and is located at the upper side of the main body 210, the power board 320 is connected to the rear side of the heat conductive bracket 220, the power board 320 is extended toward the direction of the main body 210, and the electronic components of the control board 310 and the power board 320 are both disposed toward the direction of the heat conductive bracket 220. That is, the control board 310 and the fan 400 are disposed at the front side of the heat sink 200, and the power board 320 is disposed at the rear side of the heat sink 200, i.e., the power board 320 is located at the second side of the heat sink 200. The control board 310 is provided with a control chip, a diode, and other first heating devices, and the power board 320 is provided with a rectifier bridge, an IGBT module, an IPM module, and other second heating devices. In some embodiments, the first heat generating device is connected to the heat conducting bracket 220, the second heat generating device is connected to a side of the main body 210 facing away from the heat dissipating fins 230, and the side of the main body 210 facing away from the heat dissipating fins 230 is the back surface of the main body 210, so that the heat generated by the first heat generating device of the control board 310 is transferred to the main body 210 via the heat conducting bracket 220, and the heat generated by the second heat generating device of the power board 320 is directly transferred to the main body 210, so that the heat generated by the heat generating devices can be concentrated on the main body 210, and rapid heat dissipation can be realized by using the fan 400, so that both the control board 310 and the power board 320 can operate at a suitable temperature.

In other embodiments, the heat generating devices of the control board 310 and the power board 320 are connected to the heat conductive bracket 220, and in particular, the first heat generating device and the second heat generating device may be arranged along the length direction of the cross bar 221 and the vertical bar 222. It is also possible to connect part of the second heat generating devices to the main body 210, and another part of the second heat generating devices to the heat conducting bracket 220, for example, connect the IPM module and the IGBT module to the back surface of the main body 210, and connect the rectifier bridge to the heat conducting bracket 220, and specifically perform layout according to actual assembly requirements.

Referring to fig. 4 and 5, the upper side of the main body 210 is provided with a first rib 240, the first rib 240 extends along the edge of the main body 210, specifically, extends from the left end to the right end of the upper side of the main body 210, the first rib 240 protrudes from the first surface 2101 of the main body 210, the air duct and the circuit board 300 are separated from each other in a mounting area 223 of the heat conducting bracket 220 by the first rib 240, the heat conducting bracket 220 is located above the main body 210, the mounting area 223 is understood to be an area above the main body 210 and covered by the connection of the circuit board 300 and the heat conducting bracket 220, and since the middle part of the heat conducting bracket 220 is in a hollow structure, that is, the front side and the rear side of the heat conducting bracket 220 are communicated, and therefore, the mounting area 223 includes the front side and the rear side area of the heat conducting bracket 220. The location shown by the dashed box in fig. 5 is generally the mounting area 223.

It is understood that the plurality of heat dissipation fins 230 are arranged on the first surface 2101 to form a plurality of air channels, and the air channels may be arranged along the length direction or the height direction of the main body 210, or may be distributed in a radial form, where the radial form is understood to be a shape in which the heat dissipation fins 230 are arranged to spread outwards from the center of the main body 210. The air flow generated by the fan 400 can flow along the air duct, thereby taking away the heat of the heat dissipation fins 230 and the main body 210, and having high heat dissipation efficiency, and realizing heat dissipation of the control board 310 and the power board 320.

In the related art, no isolation is provided between the air duct and the circuit board 300, when the air flows along the air duct, impurities such as dust are easy to blow to the circuit board 300 along the air duct, so that dust is accumulated on the circuit board 300, damage risk is caused to electronic components, and reliability of the driver 1000 is reduced. Because the air channels are distributed on the first surface 2101 of the main body 210, the first ribs 240 are added on the upper side of the main body 210, and the first ribs 240 can separate the air channels from the mounting area 223, so that the first ribs 240 can prevent sundries such as dust from entering the circuit board 300 along the air channels, and effectively reduce the accumulation of the sundries such as dust on the circuit board 300, thereby reducing the risk of failure of the circuit board 300 and improving the reliability and stability of the driver 1000.

Referring to fig. 5, in some embodiments, the plurality of heat dissipation fins 230 include a plurality of first fins 231 and a plurality of second fins 232, the plurality of first fins 231 are arranged at an upper portion of the first surface 2101 of the main body 210, the plurality of first fins 231 are radially distributed along the direction of the main body 210 toward the heat conducting bracket 220, first air channels 2311 are defined between adjacent first fins 231, such that the plurality of first air channels 2311 extend in different directions, and are substantially radially, i.e., the plurality of first air channels 2311 diverge in different directions, the plurality of second fins 232 are arranged at a lower portion of the first surface 2101 of the main body 210, i.e., below the first fins 231, the plurality of second fins 232 are arranged in a left-right direction of the main body 210, the plurality of adjacent second fins 232 are arranged in parallel to define second air channels 2321, the second air channels 2321 are communicated with the first air channels 2311, and the plurality of second air channels 2321 extend in a left-right direction of the main body 210. Through the cooperation of the first air channel 2311 and the second air channel 2321, airflow can flow more smoothly, the heat dissipation effect is better, and the heat dissipation performance is improved. In other embodiments, the plurality of second fins 232 are not limited to being distributed in parallel, but may be distributed in a radial shape toward both sides of the main body 210.

Referring to fig. 5, it can be understood that the fan 400 is connected to the front side of the main body 210, the inlet 410 of the fan 400 faces the front side, the outlet of the fan 400 faces the main body 210, a part of the heat dissipation fins 230 are located between the outlet of the fan 400 and the main body 210, the outlet is communicated with the first air duct 2311 and the second air duct 2321, after the air flow generated by the fan 400 flows out from the outlet of the fan 400, a part of the air flow can flow upwards along the plurality of first air ducts 2311 in a radial shape, and the other part of the air flow flows to the left and right sides of the main body 210 along the plurality of second air ducts 2321, so that heat of the heat dissipation fins 230 can be quickly taken away. It should be noted that, in some embodiments, the fan 400 is installed in a distribution area of the plurality of second fins 232, that is, the fan 400 is located at a lower portion of the first surface 2101 of the main body 210, and an outlet of the fan 400 is disposed towards the first surface 2101, so that the first air duct 2311 and the second air duct 2321 are both communicated with the outlet of the fan 400. In other embodiments, the fan 400 may be partially located in the distribution area of the first fin 231, and the other partially located in the distribution area of the second fin 232, so as to ensure that the outlet of the fan 400 can communicate with the first air duct 2311 and the second air duct 2321.

It will be appreciated that, since the first ribs 240 are located at the upper edge of the main body 210, the outlets of the first air channels 2311 are all disposed towards the direction of the first ribs 240, and the first air channels 2311 can be separated from the mounting area 223 by the first ribs 240, so that the air flow from the first air channels 2311 is blocked by the first ribs 240 and then flows to both sides of the main body 210 along the length direction of the first ribs 240 or flows to the front side of the main body 210 along the width direction of the first ribs 240, so that the air flow is prevented from directly blowing towards the circuit board 300 along the first air channels 2311, and dust entering the mounting area 223 can be reduced, and the risk of malfunction of the circuit board 300 is reduced. The direction indicated by the dashed arrow in fig. 5 is the direction of the air flow.

Referring to fig. 6, it should be noted that, the heat conducting bracket 220 connects the control board 310 and the power board 320 at the same time, the installation area 223 includes an area covered by the connection of the control board 310 and the power board 320 with the heat conducting bracket 220, and because the middle of the heat conducting bracket 220 is of a hollow structure, under the condition that the first rib 240 is not provided, air flow can blow to the control board 310 along the first air channel 2311, and then blow to the power board 320 through the hollow structure, so that dust is easy to accumulate on both the control board 310 and the power board 320. Therefore, the embodiment of the present utility model can block the air flow of the first air duct 2311 from being directly blown to the installation area 223 through the first ribs 240, so as to reduce dust entering into the control board 310 and the power board 320, effectively reduce accumulation of dust, reduce the risk of failure of the control board 310 and the power board 320, and improve the operational reliability of the driver 1000.

Referring to fig. 4 and 5, it can be understood that in the embodiment, the height of the first rib 240 is set to be greater than or equal to the height of the first fin 231, so that the first air channel 2311 defined by the first fin 231 is not higher than the height of the first rib 240, so that the first rib 240 can effectively block the air flow of the first air channel 2311 from directly blowing toward the mounting area 223, where the height of the first rib 240 and the height of the first fin 231 can be understood as protruding from the first surface 2101.

It should be noted that, the first ribs 240 and the heat dissipation fins 230 are formed integrally with the main body 210, the first ribs 240 not only have the function of blocking sundries such as dust from entering the mounting area 223, but also can be used as long heat dissipation fins, and heat of the main body 210 can be transferred to the first ribs 240, so that heat can be dissipated when air flows through the first ribs 240, and heat dissipation efficiency is improved.

Referring to fig. 4 and 5, in some embodiments, along the length direction of the first rib 240, the outer contour of the first rib 240 is in a wavy shape, and the length direction of the first rib 240 is the left-right direction of the main body 210, so that the heat dissipation area of the first rib 240 is increased and the heat dissipation performance is improved by arranging the first rib 240 in a wavy shape relative to a straight rib structure. In the embodiment shown in fig. 5, the contour of the first rib 240 is an arc-shaped curve, specifically, an arc-shaped wavy contour, which is beneficial to reduce wind resistance when the airflow flows along the first rib 240 to both sides of the main body 210. In other embodiments, the contour of the first rib 240 may also be in a tooth-shaped wavy shape, so as to further increase the heat dissipation area.

Referring to fig. 4, 5 and 6, the first surface 2101 of the main body 210 is provided with a second connection post 250, the fan 400 is provided with a connection hole 420, and the second connection post 250 is inserted into the connection hole 420 to fix the fan 400. Specifically, the four second connecting columns 250 are arranged, the four second connecting columns 250 are distributed in two rows and two columns, the fan 400 is provided with four connecting holes 420, the four connecting holes 420 are distributed at four corners of the fan 400, and the four second connecting columns 250 are connected with the four connecting holes 420 in a one-to-one correspondence manner, so that the fan 400 can be supported more stably, and the installation structure is stable and reliable.

In the embodiment, the second connecting columns 250 and the connecting holes 420 are fixed in an interference fit manner, and when in assembly, the four second connecting columns 250 are correspondingly inserted into the four connecting holes 420 and are pressed tightly with force, so that the assembly is completed, additional screws are not needed for fixing, and the assembly is convenient and quick. It should be noted that, the second connection post 250 may be connected to the heat dissipation fin 230, which is beneficial to improving the structural strength of the second connection post 250, and making the mounting structure of the fan 400 more reliable. For example, the upper two second connection posts 250 are connected to the first fin 231, and the lower two second connection posts 250 are connected to the second fin 232.

Referring to fig. 6 and 7, the power board 320 is provided with two bus capacitors 321, the two bus capacitors 321 are disposed on one side of the power board 320 facing the main body 210, and notches 260 for avoiding the bus capacitors 321 are respectively disposed on the left and right sides of the main body 210, so that the bus capacitors 321 and the main body 210 do not interfere, the mounting structure is more compact, and the occupation of the mounting space is reduced. It can be appreciated that the plurality of second fins 232 are arranged along the left-right direction of the main body 210, the second air channels 2321 are defined between the adjacent second fins 232, and the plurality of second air channels 2321 can respectively supply air towards two sides of the main body 210, so that the second air channels 2321 can radiate heat to the second fins 232 and radiate heat to the two bus capacitors 321, and a better radiating effect is achieved.

Referring to fig. 7, it can be understood that, since the wire harness of the fan 400 needs to be led out of the right side running wire 430 of the main body 210 from the installation position of the fan 400, in the embodiment, the main body 210 is further provided with the second rib 270, the second rib 270 is disposed on the first surface 2101 near the notch 260, the running wire 430 of the fan 400 is separated from the notch 260 on the right side by the second rib 270, as shown in fig. 7, the wire harness is led out of the fan 400 and runs from the upper side running wire 430 of the second rib 270, the second rib 270 plays a role of fixing the running wire 430, so that the running wire 430 is not easy to contact with the bus capacitor 321, the running wire 430 of the wire harness of the fan 400 is reasonable, the requirement of safety regulations is met, and the risk of faults of the driver 1000 is reduced.

Of course, the wire harness of the fan 400 may also face the left running wire 430 of the main body 210, and the second rib 270 may be disposed near the left notch 260, so as to avoid the running wire 430 of the fan 400 from contacting the left bus capacitor 321.

Referring to fig. 4 and 5, the body 210 includes a connection plate 211, and the body 210 and the heat conductive bracket 220 can be supported by the connection plate 211. In addition, the bottom of the housing 100 is provided with a clamping groove 130, and the connecting plate 211 can be clamped into the clamping groove 130 for clamping during assembly, so that the radiator 200 is connected with the housing 100.

Referring to fig. 1, it can be understood that the connection plate 211 is located at the bottom of the housing 100, so as to support the whole driver 1000, so that the driver 1000 can be placed along a vertical direction, the front side of the housing 100 is provided with the air inlet 110, the left and right sides of the housing 100 are respectively provided with the air outlet 120, the air inlet 110 is opposite to the inlet 410 of the fan 400, it can be understood that the air flow flowing out of the first air duct 2311 is blocked by the first ribs 240 and flows along the first ribs 240 to the two sides of the main body 210 and is discharged from the air outlets 120 on the two sides of the housing 100, and in addition, the air flow of the second air duct 2321 flows along the two sides of the main body 210 to the bus capacitor 321 and is discharged from the air outlets 120 on the two sides after passing through the bus capacitor 321, so that the air flows of the first air duct 2311 and the second air duct 2321 can both smoothly take away heat, thereby providing a better heat dissipation effect on the whole radiator 200 and improving the heat dissipation performance of the driver 1000.

Referring to fig. 8, the upper end of the power board 320 is connected to the heat conductive bracket 220, the lower end of the power board 320 is connected to the main body 210, and the upper and lower ends of the board body of the power board 320 are respectively provided with through holes 322. The back of the heat conduction bracket 220 is provided with a first connection column 224, the upper end of the connection plate 211 of the main body 210 is provided with a boss, the boss is provided with a screw hole 2111, the upper end of the power board 320 is connected with the first connection column 224 through a through hole 322 through a screw, and the lower end of the power board 320 is fixed with the screw hole 2111 through the through hole 322 through the screw, so that the upper end and the lower end of the power board 320 are fixed.

Because the size of the power board 320 is larger, and the power board 320 is placed along the vertical direction, the problem that the screw hole 2111 and the through hole 322 are difficult to position exists in the power board 320 during installation, based on this, the through hole 322 at the lower end of the power board 320 is arranged at the corner position, the back of the main body 210 is provided with the third rib 212, the third rib 212 is arranged along the circumference of the screw hole 2111, a limiting structure is formed, the corner is positioned through the limiting structure, and the screw hole 2111 and the through hole 322 can correspond after the corner is positioned, so that the screw is convenient to fix. It should be noted that, the corners on the left and right sides of the lower end of the power board 320 are respectively provided with a through hole 322, the back surface of the main body 210 is provided with two screw holes 2111, and each screw hole 2111 is respectively provided with a limiting structure, so as to position the left and right ends of the power board 320.

Referring to fig. 9, a limiting structure on the left side of the main body 210 is taken as an example to describe, where the limiting structure includes a vertical rib 2121 and a lateral rib 2122, the vertical rib 2121 is disposed along a vertical direction, the lateral rib 2122 is disposed along a horizontal direction, the vertical rib 2121 and the lateral rib 2122 are connected and perpendicular to each other, the limiting structure is matched with a corner, in an embodiment, a spacing distance between the vertical rib 2121 and the lateral rib 2122 and a screw hole 2111 is approximately 0.1mm, when the corner of the power board 320 is close to the limiting structure, the vertical rib 2121 abuts against a vertical edge of the corner, and the lateral rib 2122 and a horizontal edge of the corner enable the corner of the power board 320 to be positioned, so that the through hole 322 is matched with the screw hole 2111 correspondingly, and a screw can pass through the through hole 322 and the screw hole 2111 in sequence to assemble, thereby avoiding the positioning inaccuracy of the through hole 322 and the screw hole 2111 and the reduction of the assembly efficiency.

Embodiments of the second aspect of the present utility model further provide a motor driving system, including the driver 1000 of the embodiment of the first aspect, where the driver 1000 may be used to drive one or more motors, and the motor driving system may be a servo system of a robot or a servo system of an industrial device. The robot is a movable robot, such as a transport robot, etc., and the driver 1000 may control the operation of the driving motor so as to be able to drive the robot to move. The robot may be a mechanical arm, and a motor for driving the mechanical arm to move is disposed at each joint of the mechanical arm, and the driver 1000 operates by driving the motor, so that the mechanical arm can be driven to move.

The industrial equipment may be production equipment such as a machine tool, and an operating mechanism of the machine tool is powered by a plurality of motors, and the plurality of motors are driven to run by the driver 1000, so that the operating mechanism can be driven to move in a plurality of directions, respectively.

Since the motor drive system employs the above-described driver 1000, the motor drive system has all the advantageous effects of the driver 1000 of the above-described embodiment.

Of course, the present utility model is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. A kind of driving device, which is used for the driving device, characterized by comprising the following steps:

The radiator comprises a main body and a heat conduction bracket, wherein a plurality of radiating fins are arranged on the main body, a plurality of air channels are defined on the first side of the radiator by the radiating fins, and the heat conduction bracket is arranged at the edge of the main body;

The control board is connected to the heat conduction bracket and is positioned on the first side of the radiator;

The fan is connected to one side of the main body, which faces the radiating fins, and an outlet of the fan is communicated with the air duct;

The main body is provided with a first rib on one side close to the heat conduction support, and the first rib is arranged along the edge of the main body and is configured to separate the air duct from the control panel in the installation area of the heat conduction support.

2. The driver according to claim 1, wherein the driver further comprises:

and the power board is connected with the heat conduction bracket and the main body and is positioned on the second side of the radiator.

3. The driver of claim 2, wherein the plurality of heat dissipating fins includes a plurality of first fins and a plurality of second fins, the plurality of first fins are radially distributed along the main body in a direction toward the heat conducting bracket, a first air channel is defined between adjacent first fins, the plurality of second fins are distributed at an end of the first air channel away from the heat conducting bracket, and a plurality of second air channels are defined to communicate with the first air channel, the first ribs are located between an air outlet end of the first air channel and the heat conducting bracket, the fan is at least partially located in a distribution area of the second fins, an outlet of the fan is disposed toward a first side of the heat sink, and the first air channel and the second air channel are respectively communicated with an outlet of the fan.

4. A driver according to claim 1 or 3, wherein the outer contour of the first rib is wavy along the length of the first rib.

5. The driver of claim 3, wherein a bus capacitor is arranged on one side of the power board facing the main body, a notch for avoiding the bus capacitor is arranged on the main body, a plurality of second fins are arranged in parallel along the direction that the main body is away from the heat conducting support, a second air channel is defined between the adjacent second fins, and the second air channel is arranged facing the bus capacitor.

6. The driver of claim 2, wherein the power board has one end connected to the heat conductive bracket and a corner at the other end provided with a through hole, and the body has one end remote from the heat conductive bracket provided with a screw hole and a third rib disposed along a circumferential direction of the screw hole and configured to position the corner such that the through hole is correspondingly fitted to the screw hole.

7. The drive of claim 5, wherein the body is further provided with a second rib disposed on the first side of the heat sink proximate the notch, the second rib configured to separate the fan trace from the notch.

8. The driver of claim 5, further comprising a housing, wherein the heat sink, the control board, the power board, and the fan are disposed in the housing, respectively, the housing is provided with an air inlet and an air outlet, the air inlet is disposed at an end face of the housing and is in communication with an inlet of the fan, and the air outlet is disposed at two sides of the housing in a direction perpendicular to the main body toward the heat conducting bracket, respectively.

9. The driver of claim 1, wherein the first side of the heat sink is provided with a plurality of connecting posts arranged at intervals, the fan is provided with a plurality of connecting holes, and the connecting posts are in one-to-one correspondence with the connecting holes and are in interference fit connection.

10. A motor drive system comprising the drive of any one of claims 1 to 9.