Double-shaft integrated servo driver

Abstract

The utility model relates to the technical field of drivers, in particular to a double-shaft integrated servo driver, which comprises a shell, a heat dissipation assembly, a bottom plate, a capacitor plate, a control panel, a power panel and a key panel, the shell provides an installation condition for the heat dissipation assembly, the bottom plate, the capacitor plate, the control panel, the power panel and the key panel can be subjected to heat dissipation through the heat dissipation assembly, and the service life of the bottom plate, the capacitor plate, the control panel, the power panel and the key panel is prolonged. According to the utility model, the double 75A IGBT modules are adopted, the rated output current can reach 18A, a double-shaft driving power supply and a driving function are integrated, the integration level is high, the size is small, and the cost is low; the design of the completely independent air duct enables the heat dissipation air duct to be completely isolated from the PCBA, not only is the heat dissipation requirement of the driver considered, but also the protection capability of the driver in a severe environment is enhanced, the stable operation of the driver is guaranteed, and therefore the problem that an existing driver is large in integrated size is solved.

Description

Technical Field

[0001] This utility model relates to the field of driver technology, and in particular to a dual-axis integrated servo driver. Background Technology

[0002] Servo drives are an important component of modern motion control and are widely used in automated equipment such as industrial robots and CNC machining centers. In particular, servo drives for controlling AC permanent magnet synchronous motors have become a research hotspot both domestically and internationally.

[0003] Currently, most drives on the market are modular drives with single-axis control, or although they are integrated, their integration is low, their size is large, their price is high, and their protection performance is poor. They cannot meet the space constraints and protection requirements of harsh environments in industrial applications. Utility Model Content

[0004] The purpose of this invention is to provide a dual-axis integrated servo drive, which aims to solve the problem of the large integrated size of existing drives.

[0005] To achieve the above objectives, this utility model provides a dual-axis integrated servo driver, including a housing, a heat dissipation assembly, a base plate, a capacitor board, a control board, a power board, and a button board;

[0006] The heat dissipation component is installed inside the housing, the base plate is installed on one side of the heat dissipation component, the capacitor plate is installed between the housing and the heat dissipation component, the control board is connected to the base plate by a flexible flat cable, the button board is soldered to one side of the control board, and the power board is fixed to the upper side of the heat dissipation component and connected to the base plate by a pin header.

[0007] The outer casing includes a shell and a flip cover, the flip cover being fixedly connected to the shell and located on one side of the shell.

[0008] The housing has an air inlet channel, which is installed on one side of the housing.

[0009] The heat dissipation component includes a heat sink and a fan. The heat sink is fixedly connected to the housing and connected to the base plate, the capacitor plate, the control board and the power board, and is located inside the housing. The fan is fixedly connected to the heat sink and is located on one side of the heat sink.

[0010] The heat dissipation assembly further includes a protective cover and a flow guide. The protective cover is fixedly connected to the fan and located on one side of the fan, and the flow guide is fixedly connected to the heat sink and located on one side of the heat sink.

[0011] This utility model discloses a dual-axis integrated servo driver, comprising a housing, a heat dissipation assembly, a base plate, a capacitor board, a control board, a power board, and a button board. The housing provides mounting conditions for the heat dissipation assembly, which dissipates heat from the base plate, the capacitor board, the control board, the power board, and the button board. This utility model uses dual 75A IGBT modules with a rated output current of up to 18A, integrating the power supply and drive functions of dual-axis drive. It features high integration, small size, and low cost. The completely independent airflow design completely isolates the heat dissipation airflow from the PCBA, thus meeting the driver's heat dissipation requirements while enhancing the driver's protection capabilities in harsh environments, ensuring stable operation of the driver, and solving the problem of large integrated size in existing drivers. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is an exploded view of a dual-axis integrated servo driver according to this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of a dual-axis integrated servo driver according to this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of a dual-axis integrated servo driver of this utility model from another direction.

[0016] In the diagram: 1-flip cover, 2-shell, 3-control board, 4-capacitor board, 5-air guide, 6-button board, 7-heat sink, 8-fan, 9-protective cover, 10-base plate, 11-power board, 12-air intake channel. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figures 1-3 This utility model provides a dual-axis integrated servo driver, including a housing, a heat dissipation assembly, a base plate 10, a capacitor board 4, a control board 3, a power board 11, and a button board 6;

[0019] The heat dissipation component is installed inside the housing, the base plate 10 is installed on one side of the heat dissipation component, the capacitor plate 4 is installed between the housing and the heat dissipation component, the control board 3 is connected to the base plate 10 by a flexible flat cable, the button board 6 is soldered to one side of the control board 3, and the power board 11 is fixed to the upper side of the heat dissipation component and connected to the base plate 10 by a pin header.

[0020] In this embodiment, the housing provides the installation conditions for the heat dissipation assembly. The heat dissipation assembly can dissipate heat from the base plate 10, the capacitor plate 4, the control board 3, the power board 11, and the button board 6. This utility model adopts dual 75A IGBT modules with a rated output current of up to 18A. It integrates the power supply and drive functions of dual-axis drive, with high integration, small size, and low cost. The completely independent air duct design completely isolates the heat dissipation air duct from the PCBA, which not only takes into account the heat dissipation requirements of the driver but also enhances the driver's protection capability in harsh environments, ensuring the stable operation of the driver, thereby solving the problem of the large integrated size of existing drivers.

[0021] Furthermore, the outer casing includes a housing 2 and a flip cover 1, the flip cover 1 being fixedly connected to the housing 2 and located on one side of the housing 2.

[0022] In this embodiment, the housing 2 provides the installation conditions for the flip cover 1, and the housing 2 can be opened through the flip cover 1.

[0023] Furthermore, the housing 2 has an air inlet channel 12, which is installed on one side of the housing 2.

[0024] In this embodiment, air can be introduced through the air inlet channel 12 to achieve air circulation within the housing 2.

[0025] Furthermore, the heat dissipation assembly includes a heat sink 7 and a fan 8. The heat sink 7 is fixedly connected to the housing 2 and connected to the base plate 10, the capacitor plate 4, the control board 3 and the power board 11, and is located inside the housing 2. The fan 8 is fixedly connected to the heat sink 7 and is located on one side of the heat sink 7.

[0026] In this embodiment, the heat sink 7 can dissipate heat from the base plate 10, the capacitor plate 4, the control board 3, the power board 11, and the button board 6, and the fan 8 can expel the heat from the heat sink 7 to the housing 2.

[0027] Furthermore, the heat dissipation assembly also includes a protective cover 9 and a flow guide 5. The protective cover 9 is fixedly connected to the fan 8 and located on one side of the fan 8, and the flow guide 5 is fixedly connected to the heat sink 7 and located on one side of the heat sink 7.

[0028] In this embodiment, the protective cover 9 can protect the fan 8, and the air guide shroud 5 provides airflow guidance and sealing (isolation from PCBA) for the air duct of the heat sink 7.

[0029] The system comprises a heatsink 7, a fan 8, a fan 8 protective cover 9, a shroud 5, a base plate 10 (PCBA), a capacitor board 4 (PCBA), a control board 3 (PCBA), a power board 11 (PCBA), a button board 6 (PCBA), a housing 2, and a flip cover 1. The shroud 5 is mounted on the heatsink 7, providing airflow guidance and sealing (isolation from the PCBA) for the airflow path of the heatsink 7. The fan 8 and the fan 8 protective cover 9 are installed (embedded) in corresponding positions within the heatsink 7, supplying air to the two 75A capacitors on the base plate 10 via exhaust. The heat dissipation of power components such as IGBT modules, rectifier bridges, and diodes is provided by airflow; the base plate 10 is fixed to the heat sink 7 with screws, and each power component is tightly connected to the heat sink 7 to transfer the heat generated during operation to the heat sink fins; the capacitor board 4 is fixed to the area between the heat sink 7 airflow channel and the base plate 10 of the heat sink 7 (embedded) with screws, and the current is transferred to the base plate 10 through copper studs; the control board 3 (button board 6 is welded to the control board 3) is fixed to the heat sink 7 (on the side of the airflow guide 5) with screws; the control board 3 and the base plate 10 are connected by a flexible flat cable; the power board 11 is fixed to the upper side of the heat sink 7 and connected to the base plate 10 through pin headers; the flip cover 1 is fixed to the housing 2; the housing 2 is assembled with the heat sink 7 (from top to bottom) through buckles and positioning posts to provide protection and sealing for the internal space of the PCBA.

[0030] Beneficial effects:

[0031] First, it can reduce the installation space occupied by the drive in the electrical cabinet by more than 75% (compared to the 1+X modular servo drive).

[0032] II. Utilizing a 75A dual IGBT module, the rated output current can reach 18A. It features high integration, compact structure, small size, and low cost. a) By embedding the capacitor plate at the bottom of the heatsink, b) the clever layout of the heat-generating components on the base plate, and c) the sharing of the upper space of the heatsink with the control board, base plate connectors, and power board, the three-dimensional space of the heatsink is fully utilized, thereby achieving the goal of reducing size.

[0033] 3. Completely independent heat dissipation airflow design (heat dissipation fan embedded in the airflow channel). The 8025 fan provides an airflow of up to 63 CFM, which can ensure heat dissipation capacity while taking into account the IP protection of the driver; to prevent dust, oil mist and other substances from entering the PCBA and causing damage to components under harsh operating conditions (independent airflow design).

[0034] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A dual-axis integrated servo drive, characterized in that, Includes the casing, heat dissipation components, base plate, capacitor board, control board, power board, and button board; The heat dissipation component is installed inside the housing, the base plate is installed on one side of the heat dissipation component, the capacitor plate is installed between the housing and the heat dissipation component, the control board is connected to the base plate by a flexible flat cable, the button board is soldered to one side of the control board, and the power board is fixed to the upper side of the heat dissipation component and connected to the base plate by a pin header.

2. The dual-axis integrated servo drive as described in claim 1, characterized in that, The outer casing includes a housing and a flip cover, the flip cover being fixedly connected to the housing and located on one side of the housing.

3. The dual-axis integrated servo driver as described in claim 2, characterized in that, The housing has an air inlet channel, which is installed on one side of the housing.

4. The dual-axis integrated servo drive as described in claim 2, characterized in that, The heat dissipation assembly includes a heat sink and a fan. The heat sink is fixedly connected to the housing and connected to the base plate, the capacitor plate, the control board and the power board, and is located inside the housing. The fan is fixedly connected to the heat sink and is located on one side of the heat sink.

5. The dual-axis integrated servo drive as described in claim 4, characterized in that, The heat dissipation assembly also includes a protective cover and a flow guide. The protective cover is fixedly connected to the fan and located on one side of the fan, and the flow guide is fixedly connected to the heat sink and located on one side of the heat sink.

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