CN210779741U - Electric cabinet and industrial robot - Google Patents

Abstract

The utility model relates to an electric cabinet, including the cabinet body and a plurality of anti electromagnetic interference ware. The cabinet body is provided with a plurality of lead ports. A plurality of anti-electromagnetic interference ware sets up a plurality of inlet wire on the cabinet body respectively, and a plurality of anti-electromagnetic interference ware can carry out electromagnetic interference's reduction or elimination to the circuit in the electric cabinet respectively. The lead wire mouth includes power source, and anti-electromagnetic interference ware includes three-phase filter, and three-phase filter sets up in power source, and power source can allow the power connection to insert electric cabinet, and three-phase filter can carry out the electromagnetic interference filtering to the power connection that inserts via power source. The utility model discloses still relate to an industrial robot who contains above-mentioned electric cabinet. Above-mentioned electric cabinet and industrial robot, a plurality of anti electromagnetic interference ware including three-phase filter have effectively guaranteed that the electric cabinet can pass through the terminal disturbance test item in the electromagnetic compatibility, and then make the electric cabinet all qualified in tests such as electromagnetic compatibility test, terminal disturbance voltage, surge, voltage drop and short-term interruption.

Description

Electric cabinet and industrial robot

Technical Field

The utility model relates to a power supply unit technical field especially relates to an electricity cabinet and industrial robot.

Background

In the industrial robot manufacturing technology, an electric cabinet is an indispensable electric driving component in the process of supplying power to a motion part in an industrial robot. The design of the electric cabinet affects various robot related tests, such as an electromagnetic compatibility test, an environmental high-temperature and low-temperature test and the like. The electromagnetic compatibility test sub-items comprise terminal disturbance voltage, surge, radiation emission, radiation immunity, voltage drop, short-time interruption and the like, wherein the terminal disturbance voltage is difficult to pass in the test process, and if the electric cabinet is unreasonable in design, the outside can influence the electric cabinet, so that the normal work of the industrial robot can be influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an electromagnetic compatibility-resistant electric cabinet and an industrial robot for solving the problem of unqualified electromagnetic compatibility of the existing electric cabinet.

An electrical cabinet comprising:

the cabinet body is provided with a plurality of lead ports;

the plurality of anti-electromagnetic-interference devices are respectively arranged at the plurality of lead ports on the cabinet body and can respectively reduce or eliminate electromagnetic interference on the circuit in the electric cabinet;

the lead wire mouth includes power source, anti-electromagnetic interference ware includes three-phase filter, three-phase filter set up in power source, power source can allow the power connection to insert the electricity cabinet, three-phase filter can be to via the power connection that power source inserted carries out the electromagnetic interference filtering.

In one embodiment, the lead port further comprises a power interface, the anti-electromagnetic interference device further comprises a power magnetic ring, and the power magnetic ring is arranged at the power interface; the power interface can allow a power wiring to be connected into the electric cabinet, and the power wiring connected through the power interface can be partially wound on the power magnetic ring.

In one embodiment, the electric cabinet further comprises a servo driver and a servo circuit wiring, the servo driver is arranged in the cabinet body, the servo driver is electrically connected with the servo circuit wiring, the electromagnetic interference resisting device further comprises a servo magnetic ring, and the servo circuit wiring is partially wound on the servo magnetic ring.

In one embodiment, the cabinet body is further provided with a plurality of heat dissipation holes; the electric cabinet also comprises a main fan and an auxiliary fan which are respectively arranged on the cabinet body and are provided with a plurality of heat dissipation holes, and the air inlet/outlet direction of the main fan and the air inlet/outlet direction of the auxiliary fan form a set included angle in space.

In one embodiment, the electric cabinet further comprises a heat dissipation plate, the heat dissipation holes comprise main air outlets, the heat dissipation plate is disposed at the main air outlets, the main fan is disposed at the heat dissipation plate, and the main fan can exhaust air at the heat dissipation plate out of the cabinet body.

In one embodiment, the electric cabinet comprises two main fans, the two main fans are respectively arranged at the outer sides of the heat dissipation plates, and when the two main fans rotate, air at the heat dissipation plates can be sucked out of the cabinet body.

In one embodiment, the electric cabinet further comprises a filter screen and a protective net, the cabinet body is further provided with a vent hole, the filter screen is arranged at the vent hole, and the vent hole can allow external air to enter the cabinet body; the protection network set up in the outside of the cabinet body, protection screen panel locates two main fan.

In one embodiment, the cabinet body comprises a bottom plate and a side plate, the side plate is arranged around the outer edge of the bottom plate, and the main air outlet hole is formed in the side plate; the louvre still includes supplementary exhaust vent, supplementary exhaust vent sets up in the bottom plate, supplementary fan set up in supplementary exhaust vent, supplementary fan can with the internal gas outgoing of cabinet.

In one embodiment, the electric cabinet includes three auxiliary fans, three auxiliary air outlets are formed in the bottom plate, the three auxiliary fans are respectively disposed at the three auxiliary air outlets, the three auxiliary fans are respectively disposed inside the bottom plate, and the three auxiliary fans can respectively blow out air in the cabinet body.

In one embodiment, the electric cabinet further comprises a plurality of supporting legs, the supporting legs are respectively arranged on the outer sides of the bottom plate, and the bottom plate can be supported by the supporting legs from a supporting surface for bearing the electric cabinet.

In one embodiment, the auxiliary air outlet is in a hollow structure.

An industrial robot, includes action execution portion and the electric cabinet of any one of above-mentioned scheme, the electric cabinet with the action execution portion electricity is connected.

Above-mentioned electric cabinet and industrial robot, a plurality of anti-electromagnetic interference ware including three-phase filter can be respectively right circuit in the electric cabinet carries out electromagnetic interference's reduction or elimination, has effectively guaranteed that the electric cabinet can disturb the test item through the terminal among the electromagnetic compatibility, and then makes the electric cabinet all qualified in tests such as electromagnetic compatibility test, terminal disturbance voltage, surge, radiation emission, radiation immunity, voltage drop and short-term interruption.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view of an electric cabinet according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of an electric cabinet according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of an electric cabinet according to another embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of an electric cabinet according to still another embodiment of the present invention;

fig. 5 is a schematic bottom view of an electric cabinet structure according to an embodiment of the present invention;

fig. 6 is a schematic view of a detailed structure inside an electric cabinet according to an embodiment of the present invention.

Wherein: 100-cabinet body, 100 a-bottom plate, 100 b-side plate; 1-sealing cover, 2-vent hole, 3-IO sealing cover, 4-start button, 5-emergency stop button, 6-bicolor lamp, 7-power interface, 8-power switch, 9-power interface, 10-demonstrator interface, 11-coding line interface, 12-filter screen, 13-protective screen, 14-power magnetic ring, 15-three-phase filter, 16-heat dissipation plate, 17-fan bracket, 18-main fan, 19-supporting leg, 20-servo magnetic ring, 21-servo driver, 22-auxiliary fan, 23-fan cover, 24-plug terminal, 25-IO module, 26-net port, 27-power connector, 28-communication interface, 29-control mounting bracket, 30-filter bracket, 31-a grounding terminal, 32-an air switch, 33-a relay, 34-an alternating current contactor, 35-a safety module and 36-an auxiliary air outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

In the description of the present invention, it is to be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the industrial robot manufacturing technology, an electric cabinet is an indispensable electric driving component in the process of supplying power to a motion part in an industrial robot. In the design of an electric cabinet for an industrial robot, the electromagnetic compatibility of the electric cabinet and the temperature inside the electric cabinet have an important influence on the power supply stability of the industrial robot. Therefore, it is necessary to design an electric cabinet capable of meeting electromagnetic compatibility tests and environmental high and low temperature tests.

An embodiment of the present invention provides an electric cabinet, as shown in fig. 1-3, comprising a cabinet body 100 and a plurality of anti-electromagnetic interference devices. The cabinet body 100 is provided with a plurality of lead ports, and the lead ports are used for electric connection and routing between internal and external elements or equipment of the cabinet body 100. A plurality of anti-electromagnetic interference ware sets up a plurality of inlet leads on the cabinet body 100 respectively, and a plurality of anti-electromagnetic interference ware can carry out electromagnetic interference's reduction or elimination to the circuit in the electric cabinet respectively. Above-mentioned electric cabinet, a plurality of anti-electromagnetic interference ware can carry out electromagnetic interference's reduction or elimination to the circuit in the electric cabinet respectively, has effectively guaranteed that the electric cabinet can disturb the test item through the terminal among the electromagnetic compatibility, and then makes the electric cabinet all qualified in tests such as electromagnetic compatibility test, terminal disturbance voltage, surge, radiation emission, radiation immunity, voltage drop and short-term interruption.

In an embodiment of the present invention, as shown in fig. 1-2 and fig. 6, the lead port includes a power interface 9, the anti-electromagnetic interference device includes a three-phase filter 15, and the three-phase filter 15 is disposed at the power interface 9. The power interface 9 can allow power connections to be accessed into the electrical cabinet and the three-phase filter 15 can perform electromagnetic interference filtering on the power connections accessed via the power interface 9. Industrial robots generally use three-phase power sources, and the three-phase filter 15 can remove high-frequency electromagnetic interference introduced by the three-phase power sources, which is the component most easily radiated by and received by the cable. Furthermore, the lead port further comprises a power interface 7, the anti-electromagnetic interference device further comprises a power magnetic ring 14, and the power magnetic ring 14 is arranged at the power interface 7. Power interface 7 can allow power wiring to access the electrical cabinet, and power wiring accessed via power interface 7 can be partially wound around power magnet ring 14. The electromagnetic interference in the circuit can be effectively weakened or inhibited by additionally arranging the magnetic ring on the electromagnetic interference circuit, and the electromagnetic interference circuit is an important means for electromagnetic compatibility rectification. Optionally, the power magnetic ring 14 uses ferrite as a magnetic core material, and is an absorption filter, that is, the disturbance energy is absorbed in the stop band and converted into heat loss, so as to perform a filtering function.

Furthermore, as shown in fig. 4, the electrical cabinet further includes a servo driver 21 and a servo circuit wiring, the servo driver 21 is disposed in the cabinet body 100, the servo driver 21 is electrically connected to the servo circuit wiring, the electromagnetic interference preventer further includes a servo magnetic ring 20, and the servo circuit wiring is partially wound around the servo magnetic ring 20. A magnetic ring is additionally arranged on a circuit wiring of the servo driver 21, and the servo circuit wiring is wound on the servo magnetic ring 20 for 1-2 circles and then is connected to the servo driver 21. In an implementation manner, the servo magnetic ring 20 and the power magnetic ring 14 are made of the same material. In order to obtain better filtering effect, all signal lines pass through the bridge to reduce the area of the signal loop. When the magnetic ring used, it is on the one hand that correctly select the magnetic ring that impedance value is high, and on the other hand also need find the interference source, and it is meaningful to wind the magnetic ring on the cable that has the interference, the utility model discloses confirmed the interference source, set up power magnetic ring 14 at power wiring kneck to and install servo magnetic ring 20 additional at the servo circuit wiring of servo driver 21, played obvious improvement to the interference. In actual conditions, the power magnetic ring 14 is a large magnetic ring, and the servo magnetic ring 20 is a small magnetic ring.

An embodiment of the present invention provides an electric cabinet, as shown in fig. 1-3, further comprising a main fan 18 and an auxiliary fan 22. The cabinet body 100 is provided with a plurality of heat dissipation holes for heat exchange between the inside and the outside of the cabinet body 100. The main fan 18 and the auxiliary fan 22 are respectively disposed on the cabinet 100 and have a plurality of heat dissipation holes, and the air inlet/outlet direction of the main fan 18 and the air inlet/outlet direction of the auxiliary fan 22 form a predetermined included angle in the space. Above-mentioned electric cabinet, advance/the air-out direction is main fan 18 and auxiliary fan 22 of setting for the contained angle can follow the position of difference and introduce the electric cabinet with the outer gaseous electric cabinet in, perhaps with the interior gaseous exhaust electric cabinet of electric cabinet outside, and then realize the inside and outside gaseous three-dimensional heat transfer of electric cabinet, can effectual reduction temperature in the electric cabinet.

Optionally, the main fan 18 and the auxiliary fan 22 exhaust air from the electric cabinet or introduce air from outside the electric cabinet into the electric cabinet, both of which can achieve a reduction in temperature within the electric cabinet. For convenience of description, the following description is made in terms of "the main fan 18 and the auxiliary fan 22 discharge the air inside the electric cabinet" and it should be understood that the solution in the following embodiments may also be used as an embodiment "the main fan 18 and the auxiliary fan 22 introduce the air outside the electric cabinet into the electric cabinet" after making an adaptation modification.

In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the electrical cabinet further includes a heat dissipation plate 16, the heat dissipation hole includes a main air outlet, the heat dissipation plate 16 is disposed on the main air outlet, the main fan 18 is disposed on the heat dissipation plate 16, and the main fan 18 can discharge the gas at the heat dissipation plate 16 out of the cabinet body 100. The heat dissipation plate 16 has a large contact area, so that the relatively high-temperature gas in the electric cabinet can be in sufficient contact with the heat dissipation plate 16 to transfer the heat of the gas to the heat dissipation plate 16. Meanwhile, the main fan 18 can continuously drive surrounding air to flow through the heat dissipation plate 16 to cool the heat dissipation plate 16, and finally the aim of effectively reducing the temperature in the electric cabinet is achieved. Alternatively, the main fan 18 actively sends the flowing air into the heat dissipation plate 16, or the main fan rotates to form a negative pressure at the heat dissipation plate 16, so as to drive the surrounding air to flow through the heat dissipation plate 16.

In an embodiment of the present invention, as shown in fig. 3, the main fan 18 rotates to generate a negative pressure at the heat dissipation plate 16. Specifically, the electric cabinet includes two main fans 18, the two main fans 18 are respectively disposed at the outer sides of the heat dissipation plate 16, and the two main fans 18 can suck the air at the heat dissipation plate 16 out of the cabinet body 100 when rotating. Compared with the manner that the two main fans 18 blow air to the heat dissipation plate 16, the process that the two main fans 18 suck the air at the heat dissipation plate 16 out of the cabinet 100 can ensure the smoothness of the air flow, and ensure that the air flowing through the heat dissipation plate 16 can be exhausted through the two main fans 18. In other embodiments of the present invention, the number of primary fans 18 may be three, five, or other numbers. It should be understood that, under the condition of equivalent heat exchange effect, two main fans 18 can be replaced by a fan with higher power, so as to meet the preliminary requirement of cooling in the electric cabinet only through one main fan 18.

In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the electric cabinet further includes a filter screen 12, a ventilation hole 2 is further formed on the cabinet body 100, the filter screen 12 is disposed at the ventilation hole 2, and the ventilation hole 2 can allow external gas to enter the cabinet body 100. When the main fan 18 and the auxiliary fan 22 continuously discharge the higher temperature gas in the electric cabinet through their rotation, the normal temperature gas outside the electric cabinet continuously enters the electric cabinet through the ventilation holes 2, and the circulation is repeated, so as to reduce the overall temperature in the electric cabinet. The filter screen 12 can effectively filter out particles or other magazines and also can filter out flying insects and the like in the environmental gas, thereby keeping the environment in the electric cabinet clean. It will be appreciated that the size of the cavity in the screen 12 should be designed or selected according to the environment in which the cabinet is actually located. Further, as shown in fig. 2, the electric cabinet further includes a protection net 13. The protection net 13 is disposed outside the cabinet 100, and the protection net 13 covers the two main fans 18. The protection net 13 can effectively protect the main fan 18 from being easily damaged by external force. It is understood that the protection net 13 in the present embodiment may also be a guard rail or a grid plate type structure as long as effective protection of the main fan 18 can be achieved.

The air-out direction of auxiliary fan 22 and the reverse contained angle that is set for of air-out of main fan 18 can effectively realize discharging the interior gas of electricity cabinet fast. Optionally, the primary fan 18 and the secondary fan 22 exchange heat at the same height or at different heights, respectively. In an embodiment of the present invention, as shown in fig. 2-4, the cabinet 100 includes a bottom plate 100a and a side plate 100b, the side plate 100b is disposed around an outer edge of the bottom plate 100a, and the main air outlet is disposed on the side plate 100 b. The louvre still includes supplementary exhaust vent 36, and supplementary exhaust vent 36 sets up in bottom plate 100a, and auxiliary fan 22 sets up in supplementary exhaust vent 36, and auxiliary fan 22 can be with the gaseous exhaust in the cabinet body 100. The main air outlet hole and the auxiliary air outlet hole 36 are respectively arranged on the side plate 100b and the bottom plate 100a of the cabinet handle, so that the air in the electric cabinet can be exhausted out of the cabinet handle from the side surface and the bottom surface of the cabinet body 100. When the included angle between the bottom plate 100a and the side plate 100b of the cabinet 100 is a right angle, the planes of the main air outlet and the auxiliary air outlet 36 are also right angles. Above-mentioned mode of setting up, main fan 18 and auxiliary fan 22 have not only formed the air-out mode of multi-angle, can also cool down the electric cabinet at the height of difference simultaneously, have strengthened the cooling performance of electric cabinet. It can be understood that the cabinet 100 further includes a top plate, the bottom plate 100a, the side plates 100b and the top plate form a complete cavity, and various electronic components can be installed in the cavity of the cabinet 100. As one way of accomplishing this, the primary fan 18 or the auxiliary fan 22 may also be disposed on the top panel of the cabinet 100 to exhaust the higher temperature gases within the electrical cabinet out of the cabinet 100 from the top of the cabinet 100.

The auxiliary fans 22 can exhaust the high-temperature gas in the electric cabinet from the bottom of the electric cabinet, and the number and the specific arrangement form of the auxiliary fans 22 can be set according to the actual heat dissipation function. As shown in fig. 4 and 5, in an embodiment of the present invention, the electric cabinet includes three auxiliary fans 22, three auxiliary air outlets 36 are formed on the bottom plate 100a, the three auxiliary fans 22 are respectively disposed at the three auxiliary air outlets, the three auxiliary fans 22 are respectively disposed inside the bottom plate 100a, and the three auxiliary fans 22 can respectively blow out the air in the cabinet 100. Alternatively, the three auxiliary fans 22 are arranged in a line or form a triangle on the bottom plate 100a of the cabinet 100. It may be preferable to dispose at least one auxiliary fan 22 near the electric component having a large heat generating power. The auxiliary fan 22 is disposed on the bottom plate 100a of the cabinet 100, and the distance between the outer side of the bottom plate 100a and the supporting surface can affect the heat dissipation effect of the auxiliary fan 22 to some extent.

In an embodiment of the present invention, as shown in fig. 5, the electric cabinet further includes a plurality of supporting legs 19, the supporting legs 19 are respectively disposed on the outer side of the bottom plate 100a, and the supporting legs 19 can support the bottom plate 100a away from the supporting surface of the electric cabinet. The bottom plate 100a spaced from the support surface allows the air blown by the auxiliary fan 22 to be rapidly diffused to the surrounding environment, preventing the accumulation of the air at a higher temperature near the bottom plate 100a of the cabinet 100. Further, the auxiliary air outlet 36 is a hollow structure. Hollow out construction's supplementary exhaust vent 36 can not only effectively allow the gaseous exhaust of the internal higher temperature of cabinet 100, can also prevent that large granule impurity or winged insect etc. in the external environment from getting into the electricity cabinet through supplementary exhaust vent 36, and hollow out construction's supplementary exhaust vent 36 also can play certain guard action to supplementary fan 22 simultaneously. In other embodiments, the auxiliary air outlet 36 may be a through hole, and then a corresponding protection net or protection cover is disposed at the auxiliary air outlet 36 of the through hole structure. In one implementation, the primary fan 18 is a larger fan and the secondary fan 22 is a smaller fan as compared to the secondary fan 22 in terms of structure and power.

In an embodiment of the present invention, as shown in fig. 1 to 6, the electric cabinet further includes the following specific structure: the intelligent teaching demonstration device comprises a sealing cover 1, an IO sealing cover 3, a starting button 4, an emergency stop button 5, a bicolor lamp 6, a power switch 8, a demonstrator interface 10, a coding line interface 11, a fan support 17, a fan cover 23, a plug terminal 24, an IO module 25, a network port 26, a power connector 27, a communication interface 28, a control mounting support 29, a filter support 30, a grounding terminal 31, an air switch 32, a relay 33, an alternating current contactor 34 and a safety module 35.

The utility model also provides an industrial robot, including the electric cabinet of action execution portion and any one of above-mentioned scheme, electric cabinet is connected with action execution portion electricity. Above-mentioned industrial robot, advance/the air-out direction is main fan 18 and auxiliary fan 22 of setting for the contained angle can follow the position of difference and introduce the electric cabinet with the outer gas of electric cabinet in, perhaps with the interior gas outgoing electric cabinet of electric cabinet outside, and then realize the inside and outside gaseous three-dimensional heat transfer of electric cabinet, can effectual reduction temperature in the electric cabinet. The anti-electromagnetic interference devices can respectively reduce or eliminate electromagnetic interference on lines in the electric cabinet, so that the electric cabinet can effectively ensure a terminal disturbance test item in electromagnetic compatibility, and the electric cabinet is qualified in tests such as electromagnetic compatibility tests, terminal disturbance voltage, surge, radiation emission, radiation immunity, voltage drop, short-time interruption and the like.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (12)

1. An electrical cabinet, comprising:

the cabinet body (100), wherein a plurality of lead ports are formed in the cabinet body (100);

the anti-electromagnetic interference devices are respectively arranged at the plurality of lead ports on the cabinet body (100), and can respectively reduce or eliminate electromagnetic interference on a circuit in the electric cabinet;

the pin port includes power source (9), anti electromagnetic interference ware includes three-phase filter (15), three-phase filter (15) set up in power source (9), power source (9) can allow the power connection to insert the electricity cabinet, three-phase filter (15) can carry out electromagnetic interference filtering to the power connection via power source (9) access.

2. The electrical cabinet according to claim 1, wherein the lead port further comprises a power interface (7), the anti-electromagnetic interference device further comprises a power magnetic ring (14), and the power magnetic ring (14) is disposed at the power interface (7); the power interface (7) can allow power wiring to be connected into the electric cabinet, and the power wiring connected through the power interface (7) can be partially wound on the power magnetic ring (14).

3. The electrical cabinet according to claim 1, further comprising a servo driver (21) and servo circuit wiring, wherein the servo driver (21) is disposed in the cabinet body (100), the servo driver (21) is electrically connected to the servo circuit wiring, and the electromagnetic interference preventer further comprises a servo magnetic ring (20), and the servo circuit wiring is partially wound around the servo magnetic ring (20).

4. The electric cabinet according to any one of claims 1 to 3, wherein the cabinet body (100) is further provided with a plurality of heat dissipation holes; the electric cabinet further comprises a main fan (18) and an auxiliary fan (22), wherein the main fan (18) and the auxiliary fan (22) are respectively arranged on the cabinet body (100) and are provided with a plurality of heat dissipation holes, and the air inlet/outlet direction of the main fan (18) and the air inlet/outlet direction of the auxiliary fan (22) form a set included angle in space.

5. The electrical cabinet according to claim 4, further comprising a heat dissipation plate (16), wherein the heat dissipation holes comprise main air vents, the heat dissipation plate (16) is disposed at the main air vents, the main fan (18) is disposed at the heat dissipation plate (16), and the main fan (18) is capable of exhausting air at the heat dissipation plate (16) out of the cabinet body (100).

6. The electric cabinet according to claim 5, characterized in that it comprises two of said main fans (18), two of said main fans (18) being respectively arranged outside said heat sink (16), two of said main fans (18) being able to suck the air at said heat sink (16) out of said cabinet body (100) when they rotate.

7. The electric cabinet according to claim 6, further comprising a filter screen (12) and a protective screen (13), wherein the cabinet body (100) is further provided with a vent hole (2), the filter screen (12) is disposed at the vent hole (2), and the vent hole (2) can allow external air to enter the cabinet body (100); the protective net (13) is arranged on the outer side of the cabinet body (100), and the two main fans (18) are covered by the protective net (13).

8. The electric cabinet according to claim 5, characterized in that the cabinet body (100) comprises a bottom plate (100a) and a side plate (100b), the side plate (100b) is arranged around the outer edge of the bottom plate (100a), and the main air outlet is arranged on the side plate (100 b); the louvre still includes supplementary exhaust vent (36), supplementary exhaust vent (36) set up in bottom plate (100a), auxiliary fan (22) set up in supplementary exhaust vent (36), auxiliary fan (22) can with the gas outgoing in the cabinet body (100).

9. The electric cabinet according to claim 8, characterized in that the electric cabinet comprises three auxiliary fans (22), the bottom plate (100a) is provided with three auxiliary air outlets (36), the three auxiliary fans (22) are respectively arranged at the three auxiliary air outlets, the three auxiliary fans (22) are respectively arranged at the inner side of the bottom plate (100a), and the three auxiliary fans (22) can respectively blow out air in the cabinet body (100).

10. The electrical cabinet according to claim 9, further comprising a plurality of support feet (19), wherein the plurality of support feet (19) are respectively disposed at an outer side of the bottom plate (100a), and wherein the plurality of support feet (19) are capable of supporting the bottom plate (100a) away from a support surface carrying the electrical cabinet.

11. The electrical cabinet according to claim 8, characterized in that the auxiliary air outlet (36) is hollow.

12. An industrial robot comprising a motion-performing part and an electrical cabinet according to any of claims 1-11, said electrical cabinet being electrically connected to said motion-performing part.

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