CN211982415U

CN211982415U - Servo driver of good low pressure dispels heat

Info

Publication number: CN211982415U
Application number: CN202021010327.4U
Authority: CN
Inventors: 张卫锋; 唐亮; 石建军; 程国醒
Original assignee: Shenzhen Huacheng Industrial Control Co Ltd
Current assignee: Shenzhen Huacheng Industrial Control Co Ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-11-20
Anticipated expiration: 2030-06-04

Abstract

The utility model relates to a good low pressure servo driver dispels heat, it includes drive plate, control panel and shell, and the shell includes heat dissipation base and lid, forms the installation cavity that supplies drive plate and control panel to hold between heat dissipation base and the lid, and on heat dissipation base was located to the drive plate, the one side that heat dissipation base was kept away from to the drive plate was located to the control panel, left the distance between drive plate and the control panel. Install the drive plate in the installation cavity through separated mode with the control panel, reduce the heat transfer between drive plate and the control panel to through the direct mode of installing the drive plate on the heat dissipation base, increase the area of contact of drive plate and heat dissipation base, thereby promote the radiating effect. The utility model discloses have the good effect of heat dissipation.

Description

Servo driver of good low pressure dispels heat

Technical Field

The utility model belongs to the technical field of the technique of industry servo driver and specifically relates to a servo driver of good low pressure of heat dissipation is related to.

Background

The servo driver is a driver for controlling a servo electric appliance, the appearance structures of industrial low-voltage servo driver equipment on the market at present are numerous, and in order to meet the requirements of stricter industrial field environments, the servo controller not only needs enough stability, but also needs reasonable design on the appearance structure.

Among the prior art as the chinese utility model with the license number CN203233640U discloses a compact servo driver, which comprises a housing, a heat sink, a control circuit board and a drive circuit board are arranged in the housing, wherein the drive circuit board is arranged at the bottom of the housing, and the heat sink is fixed at the bottom of the housing and tightly attached to the drive circuit board. The control circuit board is arranged above the driving circuit board and close to one side of the radiating fin. The internal compactness of this patent structure is as for the inside and be close to drive circuit board and control circuit board with the radiator to the shell, prevents that operating personnel from contacting the fin and electrocuteeing.

The driving circuit board is generally provided with a power supply and a power conversion circuit, and the circuit has high voltage, large current and serious heat generation; the control board is mainly responsible for power part management, external communication and acquisition and control of external control quantity, and the board is a precise electronic control system and has the characteristics of low voltage, small current and small heat. In some designs of the servo driver, in order to simultaneously dissipate heat of the driving board and the control board, the heat sink is arranged between the driving board and the control board, but the difference of heat generation amounts between the driving board and the control board is large, and the design influences a contact space between the heat sink and the driving board, so that the overall heat dissipation effect of the servo driver is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a low pressure servo driver, through separating drive plate and control panel to area of contact between increase drive plate and the heat radiation structure reaches good radiating effect.

The utility model provides a good low pressure servo driver dispels heat, includes drive plate, control panel and shell, the shell includes heat dissipation base and lid, heat dissipation base with form the confession between the lid the drive plate with the installation cavity that the control panel held, the drive plate is located on the heat dissipation base, the control panel is located the drive plate is kept away from the one side of heat dissipation base, the drive plate with leave the distance between the control panel.

Through adopting above-mentioned technical scheme, install the drive plate in the installation cavity through separated mode with the control panel, reduce the heat transfer between drive plate and the control panel to through the mode of directly installing the drive plate on the heat dissipation base, increase the area of contact of drive plate and heat dissipation base, thereby promote the radiating effect.

The present invention may be further configured in a preferred embodiment as: the lid is including the roof, be fixed in the front panel of roof one side and be fixed in respectively the curb plate of roof left and right sides, the heat dissipation base includes the bottom plate and is fixed in the rear panel of bottom plate one side, the roof the bottom plate the curb plate the front panel with form between the rear panel the installation cavity, the curb plate with the connection can be dismantled to the bottom plate.

Through adopting above-mentioned technical scheme, the shell can be dismantled with the bottom plate through the curb plate of the left and right sides and be connected to make shell and heat dissipation base dismantle and be connected, the user's accessible is unpacked the shell apart and is carried out the inspection maintenance to the part of installation intracavity.

The present invention may be further configured in a preferred embodiment as: the curb plate is in order to keep away from the direction of installation cavity extends and forms the confession the curb plate with the connecting portion that the heat dissipation pedestal connection, the both sides of bottom plate are in order to keep away from the direction of installation cavity extends and forms two installation departments, connecting portion are equipped with connecting bolt, connecting bolt wears to locate connecting portion with installation department threaded connection.

Through adopting above-mentioned technical scheme, when shell and heat dissipation base were in the fixed state, installation department and connecting portion passed through connecting bolt and are connected. The user can open the housing by unscrewing the connector screw, and can also reinstall the housing and heat sink base by tightening the connector bolt.

The present invention may be further configured in a preferred embodiment as: the both ends of installation department are provided with the first mounting groove that supplies the mounting to wear to establish, first mounting groove intercommunication the installation department is kept away from one side of installation cavity.

Through adopting above-mentioned technical scheme, the user can wear to locate first mounting groove with the mounting like the screw to threaded connection makes heat dissipation base and fixture relatively fixed through PMKD's mode on the fixture.

The present invention may be further configured in a preferred embodiment as: the both ends middle part of rear panel is provided with the second mounting groove that supplies the mounting to wear to establish, second mounting groove intercommunication the installation department is kept away from one side of installation cavity.

Through adopting above-mentioned technical scheme, the user can wear to locate the second mounting groove with the mounting like the screw to threaded connection makes heat dissipation base and fixture relatively fixed through the mode of fixed rear panel on the fixture.

The present invention may be further configured in a preferred embodiment as: the drive plate is provided with a plurality of copper studs used for being connected with the control panel, a plurality of mounting bolts are arranged on the control panel, the mounting bolts penetrate through the control panel and are in threaded connection with the copper studs, and the copper studs penetrate through the drive plate and are in threaded connection with the bottom plate.

Through adopting above-mentioned technical scheme, the control panel is fixed through the cooperation completion between construction bolt and the copper stud with the drive plate, and the user accessible is twisted out construction bolt and is opened control panel and drive plate. When a user installs the driving plate and the control panel, the driving plate can be fixed on the bottom plate through the copper studs, and then the control panel is installed.

The present invention may be further configured in a preferred embodiment as: the base plate is made of die-cast aluminum material.

Through adopting above-mentioned technical scheme, the aluminium material has the characteristics that density is little, thermal conductivity is strong, through the mode of whole bottom plate and drive plate contact for the heat transfer between bottom plate and the drive plate reaches good radiating effect.

The present invention may be further configured in a preferred embodiment as: the driving plate is provided with a heat dissipation adhesive layer used for being connected with the bottom plate, the bottom plate is provided with a plurality of positioning columns used for being connected with the copper studs, the positioning columns are provided with positioning holes, and the copper studs penetrate through the driving plate and are in threaded connection with the positioning holes.

Through adopting above-mentioned technical scheme, the heat dissipation glue film is in the same place drive plate and bottom plate glutinous to play insulating effect at drive plate and bottom plate and prevent that the short circuit takes place for the component to the drive plate upper right and base contact. The positioning column can enable a certain gap to be reserved between the driving plate and the bottom plate for accommodating the insulating glue layer.

The present invention may be further configured in a preferred embodiment as: the connection of control panel with the copper stud is provided with the second beaded finish, the connection of drive plate with the copper stud is provided with first beaded finish.

Through adopting above-mentioned technical scheme, the second beaded finish can be consolidated with the junction of copper stud on control panel or the drive plate, and first beaded finish can be consolidated with the junction of copper stud on the drive plate. Through the setting of reinforcing ring, prevent that too support tightly between copper stud and its connection structure, lead to drive plate or control panel to receive the damage to protect drive plate or control panel.

The present invention may be further configured in a preferred embodiment as: and an insulating paint layer is arranged on the surface of the shell.

Through adopting above-mentioned technical scheme, insulating paint layer plays the effect of insulating protection, electrocutes when preventing that the user from touching the shell.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the driving board and the control board are arranged in the mounting cavity in a separated mode, so that heat transfer between the driving board and the control board is reduced, and the contact area between the driving board and the heat dissipation base is increased by directly arranging the driving board on the heat dissipation base, so that the heat dissipation effect is improved;

2. the user can open the shell by unscrewing the connecting screw, and can also reinstall the shell and the heat dissipation base by screwing the connecting bolt;

3. through the setting of reinforcing ring, prevent that too support tightly between copper stud and its connection structure, lead to drive plate or control panel to receive the damage to protect drive plate or control panel.

Drawings

Fig. 1 is a schematic structural diagram of a low-voltage servo driver with good heat dissipation.

Fig. 2 is an exploded view of the cover and heat sink base.

Fig. 3 is an exploded schematic view of the control board, drive board and heat sink base.

In the figure, 1, a drive plate; 11. a heat dissipation adhesive layer; 12. a first fixing hole; 121. a first reinforcement ring; 13. a motor interface; 14. a power interface; 2. a control panel; 21. a second fixing hole; 211. a second reinforcement ring; 22. an encoder interface; 23. a communication interface; 24. installing a bolt; 3. a housing; 31. a mounting cavity; 4. a cover body; 41. an insulating paint layer; 42. a top plate; 43. a side plate; 431. a connecting portion; 432. a connecting bolt; 44. a front panel; 5. a heat dissipation base; 51. a base plate; 511. an installation part; 512. a threaded hole; 5111. a first mounting groove; 52. a rear panel; 521. a second mounting groove; 53. a positioning column; 531. positioning holes; 6. a component; 7. a copper stud; 71. a boss portion; 72. a recessed portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model discloses a good low pressure servo driver dispels heat is through separating drive plate 1 and control panel 2 to area of contact between increase drive plate 1 and the heat radiation structure reaches good radiating effect. Referring to fig. 1 and 2, the low voltage servo driver includes a driving plate 1, a control plate 2, and a housing 3. The housing 3 comprises a cover body 4 and a heat dissipation base 5 made of die-cast aluminum material, a mounting cavity 31 is formed between the cover body 4 and the heat dissipation base 5, and the driving plate 1 and the control panel 2 are mounted in the mounting cavity 31. One side of the driving plate 1 is connected with the control plate 2, and the other side is connected with the heat dissipation base 5, so that the contact area between the driving plate 1 and the heat dissipation base 5 is increased, and the heat dissipation effect is increased.

Referring to fig. 2 and 3, the heat sink base 5 includes a base plate 51 parallel to the driving board 1 and a rear plate 52 perpendicular to the base plate 51, the rear plate 52 being located at one side of the base plate 51, the rear plate 52 being integrally formed with the base plate 51. One surface of the driving board 1 close to the control board 2 is provided with components 6 and interfaces, and pins of the components 6 or the interfaces penetrate through the driving board 1 and are welded with bonding pads on the surface of the driving board 1. In order to prevent the pins penetrating the driving board 1 from contacting the bottom plate 51 to cause short circuit, a heat dissipation adhesive layer 11 is disposed between the driving board 1 and the bottom plate 51. The heat dissipation glue layer 11 is composed of heat dissipation silica gel, and the heat dissipation glue layer 11 is respectively bonded with the drive board 1 and the bottom plate 51, so that the effect of connection and fixation is achieved between the drive board 1 and the bottom plate 51, and the effect of insulation is achieved.

In the production process of the low-voltage servo driver, in order to reserve a reasonable space between the driving plate 1 and the bottom plate 51 for accommodating the heat dissipation glue layer 11, the reduction of the heat transfer efficiency caused by the overlarge distance between the driving plate 1 and the bottom plate 51 is avoided, and the bottom plate 51 is integrally formed with four positioning columns 53. The drive plate 1 and the control plate 2 are respectively rectangular and matched in shape, and four positioning columns 53 are arranged at four corners of the drive plate 1. The positioning posts 53 extend in a direction approaching the drive plate 1, and when the drive plate 1 and the base plate 51 are fixed to each other, the drive plate 1 abuts against the positioning posts 53, and a gap is left between the drive plate 1 and the base plate 51.

When the low-voltage servo driver is in a working state, the heat productivity of the driving plate 1 is larger than that of the control plate 2, and in order to reduce heat transfer between the driving plate 1 and the control plate 2 and reserve a space for mounting components 6 between the driving plate 1 and the control plate 2, a distance is reserved between the driving plate 1 and the control plate 2. In this embodiment, the distance between the driving plate 1 and the control plate 2 is 20cm, and in other embodiments, the manufacturer can adjust the distance according to the size of the driving plate 1 or the control plate 2.

In order to fix the driving plate 1 to the bottom plate 51 more stably, four copper studs 7 are provided between the driving plate 1 and the control plate 2, and the positions of the copper studs 7 correspond to the positioning posts 53. One surface of the positioning column 53 close to the driving plate 1 is provided with a positioning hole 531, and a thread is arranged inside the positioning hole 531. Four first fixing holes 12 are formed in the surface of the driving board 1, the first fixing holes 12 are through holes, and each first fixing hole 12 is communicated with each positioning hole 531. A boss 71 is formed at an end of the copper stud 7 so as to extend in a direction approaching the positioning post 53, and a thread is provided on the circumferential side of the boss 71. Each boss 71 is inserted into a corresponding first fixing hole 12 and screwed into the positioning hole 531, so that the drive board 1 and the bottom plate 51 are fixed relative to each other, and in a fixed state, one side of the drive board 1 close to the rear panel 52 is bonded to the rear panel 52.

One end of the copper stud 7 far away from the convex part 71 is concavely formed with a concave part 72 in the direction far away from the control plate 2, and the inner wall of the concave part 72 is provided with screw threads. The control plate 2 is provided with four mounting bolts 24 corresponding to the copper studs 7 and second fixing holes 21 for the mounting bolts 24 to penetrate. Each mounting bolt 24 is inserted into the corresponding second fixing hole 21 and is screwed into the recess 72, so that the control plate 2 and the drive plate 1 are fixed relative to each other.

In order to make the connection between the control board 2 and the copper studs 7 more stable, the manufacturer needs to tighten the mounting bolts 24, and at the same time, in order to prevent the control board 2 from being damaged due to the excessive clamping between the mounting bolts 24 and the copper studs 7, the two ends of each second fixing hole 21 are provided with second reinforcing rings 211. The second reinforcing ring 211 is made of a metallic copper material, and the inner diameter of the second reinforcing ring 211 coincides with the diameter of the second fixing hole 21. The second reinforcement ring 211 is embedded in the surface of the control plate 2.

When the control panel 2 is in a fixed state, the mounting bolts 24 and the copper studs 7 are respectively abutted against the two second reinforcing rings 211, so that damage to the control panel 2 is reduced. Similarly, two ends of each first fixing hole 12 are provided with a first reinforcing ring 121, and each first reinforcing ring 121 is embedded in the surface of the driving plate 1; when the driving plate 1 is in a fixed state, the copper studs 7 and the positioning columns 53 are respectively abutted against the two first reinforcing rings 121, so that damage to the driving plate 1 is reduced.

In order to improve the stability of the low-voltage servo driver, the cover 4 is made of a metal material in the embodiment, and the surface of the cover 4 is coated with an insulating paint layer 41. In other embodiments, the cover 4 may be made of a plastic material, and the user may design the cover according to the actual application scenario of the low-pressure servo driver. The cover 4 includes a top plate 42 parallel to the bottom plate 51, a front plate 44 parallel to the rear plate 52, and side plates 43 located on both sides of the front plate 44, and the top plate 42, the front plate 44, and the side plates 43 are integrally formed. When the cover 4 is fixed to the heat sink base 5, the mounting cavity 31 is formed between the top plate 42, the bottom plate 51, the front plate 44, the rear plate 52, and the side plates 43. One side of the control panel 2 close to the front panel 44 is provided with an encoder interface 22 and a communication interface 23, one side of the drive panel 1 close to the front panel 44 is provided with a motor interface 13 and a power interface 14, and the front panel 44 is provided with a through groove for the penetration of each interface.

The middle parts of the two side plates 43 near the bottom plate 51 are respectively provided with a connecting part 431, the connecting part 431 extends in a direction away from the installation cavity 31, and the middle parts of the connecting parts 431 are provided with connecting bolts 432. The width of the heat sink base 5 is larger than that of the cover 4, and two mounting portions 511 corresponding to the connection portions 431 are formed on the bottom plate 51 near both sides of the connection portions 431. The middle of the mounting portion 511 is opened with a screw hole 512. The two connecting bolts 432 are respectively inserted into the connecting portions 431 and screwed into the corresponding screw holes 512, so that the side plates 43 and the bottom plate 51 are fixed relatively. The user can open the cover 4 and the heat dissipation base 5 by unscrewing the two connecting bolts 432; similarly, the user can also re-mount the cover 4 and the heat sink base 5 by using the connecting bolts 432.

First mounting grooves 5111 are respectively formed in two ends of the mounting portion 511 on the side away from the mounting cavity 31, and the first mounting grooves 5111 are in a U shape. A user can fix the base plate 51 with respect to the fixture by inserting a fixing member such as a screw into the first mounting groove 5111 and screwing it to the fixture.

The middle parts of the two ends of the rear panel 52 are respectively provided with a second mounting groove 521, and the second mounting groove 521 is U-shaped. The user can fix the rear panel 52 relative to the fixture by inserting a fixing member such as a screw into the second mounting groove 521 and screwing the fixing member to the fixture. In the actual installation process, a user can fix one of the back panel 52 or the bottom plate 51 on a fixed object through the installation position determination, or fix the back panel 52 and the bottom plate 51 on the fixed object at the same time, so that the low-voltage servo driver is relatively fixed.

The implementation principle of the embodiment is as follows: install drive plate 1 and control panel 2 in installation cavity 31 through the mode of separating, reduce the heat transfer between drive plate 1 and the control panel 2 to through the mode of directly installing drive plate 1 on heat dissipation base 5, increase drive plate 1 and heat dissipation base 5's area of contact, thereby promote the radiating effect.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a good low pressure servo driver dispels heat, includes drive plate (1), control panel (2) and shell (3), its characterized in that: the shell (3) comprises a heat dissipation base (5) and a cover body (4), the heat dissipation base (5) and an installation cavity (31) formed between the cover body (4) for supplying the drive plate (1) and the control plate (2) to contain are formed, the drive plate (1) is arranged on the heat dissipation base (5), the control plate (2) is arranged on the drive plate (1) and far away from one surface of the heat dissipation base (5), and a distance is reserved between the drive plate (1) and the control plate (2).

2. The low-voltage servo driver with good heat dissipation of claim 1, wherein: lid (4) including roof (42), be fixed in front panel (44) of roof (42) one side and be fixed in respectively curb plate (43) of roof (42) left and right sides, heat dissipation base (5) include bottom plate (51) and be fixed in rear panel (52) of bottom plate (51) one side, roof (42) bottom plate (51) curb plate (43) front panel (44) with form between rear panel (52) installation cavity (31), curb plate (43) with bottom plate (51) can be dismantled and be connected.

3. A low-voltage servo driver with good heat dissipation as claimed in claim 2, wherein: curb plate (43) are with keeping away from the direction of installation cavity (31) extends and forms the confession curb plate (43) with connecting portion (431) that heat dissipation base (5) are connected, the both sides of bottom plate (51) are in order to keep away from the direction of installation cavity (31) extends and forms two installation departments (511), connecting portion (431) are equipped with connecting bolt (432), connecting bolt (432) wear to locate connecting portion (431) with installation department (511) threaded connection.

4. A low-voltage servo driver with good heat dissipation as claimed in claim 3, wherein: the both ends of installation department (511) are provided with first mounting groove (5111) that the confession mounting wore to establish, first mounting groove (5111) intercommunication installation department (511) are kept away from one side of installation cavity (31).

5. A low-voltage servo driver with good heat dissipation as claimed in claim 3, wherein: the middle parts of the two ends of the rear panel (52) are provided with second mounting grooves (521) for the fixing pieces to penetrate through, and the second mounting grooves (521) are communicated with one side, far away from the mounting cavity (31), of the mounting part (511).

6. A low-voltage servo driver with good heat dissipation as claimed in claim 2, wherein: the drive plate (1) is provided with a plurality of copper studs (7) used for being connected with the control panel (2), a plurality of mounting bolts (24) are arranged on the control panel (2), the mounting bolts (24) penetrate through the control panel (2) and the copper studs (7) in threaded connection, and the copper studs (7) penetrate through the drive plate (1) and the bottom plate (51) in threaded connection.

7. The low-voltage servo driver with good heat dissipation of claim 6, wherein: the base plate (51) is made of die-cast aluminum material.

8. The low-voltage servo driver with good heat dissipation of claim 7, wherein: the heat dissipation device is characterized in that the drive plate (1) is provided with a heat dissipation adhesive layer (11) used for being connected with the bottom plate (51), the bottom plate (51) is provided with a plurality of positioning columns (53) used for connecting the copper studs (7), the positioning columns (53) are provided with positioning holes (531), and the copper studs (7) penetrate through the drive plate (1) and are in threaded connection with the positioning holes (531).

9. The low-voltage servo driver with good heat dissipation of claim 6, wherein: and a second reinforcing ring (211) is arranged at the joint of the control plate (2) and the copper stud (7), and a first reinforcing ring (121) is arranged at the joint of the drive plate (1) and the copper stud (7).

10. The low-voltage servo driver with good heat dissipation of claim 1, wherein: and an insulating paint layer (41) is arranged on the surface of the shell (3).