Servo driver shell structure

Abstract

The utility model relates to the technical field of electrical control, in particular to a servo driver shell structure, which comprises a metal plate shell, an insert radiator and a metal plate shielding plate. The insert radiator is detachably assembled in the accommodating space to divide the accommodating space into a circuit space and a radiating space, and the circuit space is used for accommodating a power board, a power board and a control board of the servo driver; the metal plate shielding plate is detachably assembled in the circuit space to divide the circuit space into a power space and a control space, the power space is used for accommodating a power board and a power board of the servo driver, and the control space is used for accommodating a control board of the servo driver. The technical problems that in the prior art, a servo driver shell is high in cost, and a control part is subjected to electromagnetic interference are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, and particularly to a servo driver housing structure. Background Art

[0002] With the continuous development of industrial 4.0 and industrial intelligence, the use of servo drivers is becoming more and more widespread in various fields. A servo driver is a control driver used to precisely control a servo motor, mainly composed of a drive part, a capacitor part, a module part, and a control part. Since the servo driver can use complex control algorithms to control the motor with high precision, it has achieved intelligent control of the motor, and thus has become an important technical topic today.

[0003] In the prior art, the power board and the control board of the servo driver are placed and assembled in parallel on an aluminum casting bracket, and then a plastic shell is sleeved on the outermost layer. This is a common book-type structure. The advantage is that the volume is small, but the disadvantages are also obvious. The aluminum casting bracket and the plastic shell both need to be molded, and the upfront mold cost is high. Secondly, the plastic shell cannot effectively protect against electromagnetic interference. Especially, the control board is directly facing the power board, which is troublesome for both internal and external interference, and the EMI design requirements for the control board are relatively high. Summary of the Utility Model

[0004] In order to solve the technical problems in the prior art that the housing cost of the servo driver is high and the control part is susceptible to electromagnetic interference, this application proposes a servo driver housing structure to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] The utility model provides a servo driver housing structure, including: a sheet metal housing, in which a receiving space is formed; a fin radiator, which is detachably assembled in the receiving space to divide the receiving space into a circuit space and a heat dissipation space, and the circuit space is used to house the power board, the power supply board and the control board of the servo driver; a sheet metal shielding board, which is detachably assembled in the circuit space to divide the circuit space into a power space and a control space, the power space is used to house the power board and the power supply board of the servo driver, and the control space is used to house the control board of the servo driver.

[0007] Further, the sheet metal shielding board vertically divides the circuit space.

[0008] Further, a part of a side wall of the sheet metal housing in contact with the heat dissipation space is configured as a detachable sheet metal air duct board.

[0009] Further, a detachable fan is externally installed on the sheet metal air duct plate, and the main body of the fan is embedded in the heat dissipation space.

[0010] Further, the top plate of the sheet metal housing is configured as a detachable sheet metal upper cover.

[0011] Further, it further includes a sheet metal terminal cover plate facing the wiring terminals of the power board and the power supply board of the servo driver. After being bent, the sheet metal terminal cover plate forms a hollowed-out piece filled in the hollowed-out part of the sheet metal housing and an inserted piece inserted into the circuit space. The sheet metal terminal cover plate is detachably assembled on the sheet metal housing through the hollowed-out piece.

[0012] Further, the hollowed-out piece is screwed to the sheet metal housing.

[0013] Further, it further includes a sheet metal bracket, and the sheet metal bracket is detachably assembled on the outside of the side wall or the bottom plate of the sheet metal housing.

[0014] Further, the power board and the power supply board for accommodating the servo driver are stacked and assembled layer by layer. Among them, the power board abuts against the inserted piece radiator.

[0015] Further, the sheet metal housing is integrally formed by riveting.

[0016] Based on the above technical solutions, the technical effects that the present utility model can achieve are as follows:

[0017] 1. For the servo driver housing structure of the present utility model, the sheet metal housing and the sheet metal shielding plate eliminate the plastic mold cost of the plastic housing. At the same time, the inserted piece radiator also eliminates the aluminum extrusion mold cost. The upfront input cost can be greatly reduced, reducing the investment risk of new projects. The procurement MOQ of the sheet metal housing is much lower than that of the plastic housing, with flexible procurement and no inventory backlog risk. The sheet metal shielding plate and the sheet metal housing in the accommodation space can isolate the control board of the servo driver from the power board and the power supply board of the servo driver, shielding the electromagnetic interference of the internal strong electricity on the weak electricity, thus solving the technical problems of high cost of the servo driver housing in the prior art and electromagnetic interference on the control part.

[0018] 2. For the servo driver housing structure of the present utility model, the part of a side wall of the sheet metal housing in contact with the heat dissipation space is configured as a detachable sheet metal air duct plate. A detachable fan is externally installed on the sheet metal air duct plate, and the main body of the fan is embedded in the heat dissipation space, which will not increase the external dimensions of the housing structure. Moreover, for the maintenance and replacement of the fan, there is no need to disassemble the housing structure, and the fan can be directly replaced.

[0019] 3. The top plate of the sheet metal shell of the servo driver housing structure of the present utility model is configured as a detachable sheet metal upper cover. The sheet metal shell and the sheet metal upper cover enclose the control board inside, shielding the electromagnetic interference of other external machines on the control board inside the housing structure.

[0020] 4. The sheet metal shell of the servo driver housing structure of the present utility model is integrally formed by riveting. The integrally riveted sheet metal shell greatly reduces the complexity of the assembly process. The housing structure can be assembled through a simple stacking structure, improving production efficiency. It is also convenient to disassemble and facilitate subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the servo driver housing structure of the present utility model.

[0022] In the present utility model: a - power board, b - power supply board, c - control board; 1 - sheet metal shell; 2 - finned heat sink; 3 - sheet metal shielding board; 4 - sheet metal air duct board, 41 - fan; 5 - sheet metal upper cover; 6 - sheet metal terminal cover plate, 61 - hollowed-out piece, 62 - inserted piece; 7 - sheet metal bracket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] As Figure 1 shown, the present utility model provides a servo driver housing structure, including a sheet metal shell 1, a finned heat sink 2 and a sheet metal shielding board 3. A receiving space is formed inside the sheet metal shell 1. The finned heat sink 2 is detachably assembled in the receiving space to divide the receiving space into a circuit space and a heat dissipation space. The circuit space is used to house the power board a, the power supply board b and the control board c of the servo driver. The sheet metal shielding board 3 is detachably assembled in the circuit space to divide the circuit space into a power space and a control space. The power space is used to house the power board a and the power supply board b of the servo driver, and the control space is used to house the control board c of the servo driver.

[0025] The servo driver housing structure of the present utility model eliminates the plastic mold cost of the plastic housing for the sheet metal housing 1 and the sheet metal shielding plate 3. At the same time, the inserted fin radiator 2 also eliminates the aluminum extrusion mold cost, and the upfront investment cost can be significantly reduced, reducing the investment risk of new projects. The purchase MOQ of the sheet metal housing 1 is much lower than that of the plastic housing, with flexible procurement and no risk of inventory backlog. The sheet metal shielding plate 3 and the sheet metal housing 1 within the accommodating space can isolate the control board c of the servo driver from the power board a and the power supply board b of the servo driver, shielding the electromagnetic interference of the internal strong electricity on the weak electricity, thus solving the technical problems of high cost of the servo driver housing in the prior art and electromagnetic interference to the control part.

[0026] In a specific embodiment of the present utility model, the sheet metal shielding plate 3 vertically divides the circuit space.

[0027] A part of a side wall of the sheet metal housing 1 of the servo driver housing structure of the present utility model in contact with the heat dissipation space is configured as a detachable sheet metal air duct plate 4.

[0028] Furthermore, a detachable fan 41 is externally installed on the sheet metal air duct plate 4. In this example, the fan 41 is screwed onto the sheet metal air duct plate 4, and the main body of the fan 41 is embedded in the heat dissipation space, without increasing the external dimension of the housing structure. Moreover, for the maintenance and replacement of the fan 41, it is not necessary to disassemble the housing structure, and the fan 41 can be directly replaced by loosening the fastening screws of the fan 41.

[0029] The top plate of the sheet metal housing 1 of the servo driver housing structure of the present utility model is configured as a detachable sheet metal upper cover 5. The sheet metal housing 1 and the sheet metal upper cover 5 enclose the control board c inside, shielding the electromagnetic interference of other external machines on the control board c within the housing structure;

[0030] The servo driver housing structure of the present utility model further includes a sheet metal terminal cover plate 6 facing the terminals of the power board a and the power supply board b of the servo driver. After being bent, the sheet metal terminal cover plate 6 forms a hollow sheet 61 filled in the hollow part of the sheet metal housing 1 and an inserted sheet 62 inserted into the circuit space. The sheet metal terminal cover plate 6 is detachably assembled on the sheet metal housing 1 through the hollow sheet 61. Preferably, the hollow sheet 61 is screwed onto the sheet metal housing 1. The sheet metal terminal cover plate 6 is the cover plate for all terminals such as U, V, W, R, S, T, etc., and is fixed by hand-tightening screws, which is quite convenient for wiring.

[0031] The servo driver housing structure of the present utility model further includes a sheet metal bracket 7, which is detachably assembled in the middle or bottom of the side wall of the sheet metal housing 1. The sheet metal bracket 7 can be assembled in the middle of the housing structure, and the housing structure can be applied to through-wall installation. It can also be assembled at the bottom of the housing structure, and the housing structure can be applied to wall-mounted installation. In this way, the fixed position of the sheet metal bracket 7 can be selected according to the wall-mounted or through-wall installation at the customer's application site.

[0032] The power board a and the power supply board b for accommodating the servo driver of the present utility model are stacked and assembled layer by layer, so that the heat of the power board a is introduced into the heat dissipation space through the insert fin radiator 2, and forced air cooling is carried out by the fan 41 in the heat dissipation space.

[0033] The sheet metal housing 1 of the servo driver housing structure of the present utility model is integrally formed by riveting. The integrally riveted sheet metal housing 1 greatly reduces the complexity of the assembly process. The housing structure can be assembled through a simple stacking structure, improving production efficiency. It is also convenient to disassemble and subsequent maintenance.

[0034] It should be understood that the specific embodiments described above are only used to explain the present utility model and are not used to limit the present utility model. Obvious changes or variations derived from the spirit of the present utility model are still within the protection scope of the present utility model.

Claims

1. A servo drive housing structure, characterized in that: include: A sheet metal shell (1), wherein a housing space is formed in the sheet metal shell (1); A plug-in heat sink (2), the plug-in heat sink (2) being detachably mounted in the accommodation space to divide the accommodation space into a circuit space and a heat dissipation space, the circuit space being used to accommodate a power board (a), a power supply board (b) and a control board (c) of the servo drive; A sheet metal shielding plate (3) is detachably mounted in the circuit space to divide the circuit space into a power space and a control space, the power space is used to accommodate a power board (a) and a power supply board (b) of a servo drive, and the control space is used to accommodate a control board (c) of the servo drive.

2. The servo drive housing structure according to claim 1, characterized in that: The sheet metal shielding plate (3) vertically divides the circuit space.

3. The servo drive housing structure according to claim 1, characterized in that: The portion of a side wall of the sheet metal housing (1) that contacts the heat dissipation space is configured as a detachable sheet metal air duct plate (4).

4. The servo drive housing structure according to claim 3, characterized in that: A detachable fan (41) is externally mounted on the sheet metal air duct plate (4), and a main body of the fan (41) is embedded in the heat dissipation space.

5. The servo drive housing structure according to claim 1, characterized in that: The top plate of the sheet metal housing (1) is configured as a detachable sheet metal upper cover (5).

6. The servo drive housing structure according to claim 1, characterized in that: It also includes a sheet metal terminal cover (6) facing the connection terminals of the power board (a) and the power board (b) of the servo drive, wherein the sheet metal terminal cover (6) is bent to form a hollow piece (61) filled in the hollow part of the sheet metal shell (1) and an insertion piece (62) inserted into the circuit space, and the sheet metal terminal cover (6) is detachably mounted on the sheet metal shell (1) through the hollow piece (61).

7. The servo drive housing structure according to claim 6, characterized in that: The hollow piece (61) is screwed onto the sheet metal housing (1).

8. The servo drive housing structure according to claim 1, characterized in that: It also comprises a sheet metal bracket (7), which is detachably mounted on the middle part or the bottom part of the side wall of the sheet metal housing (1).

9. The servo drive housing structure according to claim 1, characterized in that: A power board (a) and a power supply board (b) for accommodating a servo drive are stacked and assembled in layers, wherein the power board (a) abuts against the insert heat sink (2).

10. The servo drive housing structure according to claim 1, characterized in that: The sheet metal shell (1) is formed by riveting in one piece.

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