Large-current over-current column of micro servo controller

Abstract

The utility model relates to the field of servo controllers, and discloses a large-current over-current column of a micro servo controller, which comprises a power terminal, the bottom of the power terminal is fixedly connected with an interface board, the interface board is provided with an over-current column assembly, the over-current column assembly is provided with a control board, the over-current column assembly is provided with an inverter board, and the inverter board is provided with an inverter. The overflowing column assembly comprises a head part, the bottom end of the head part is fixedly connected with a middle column, the bottom end of the middle column is fixedly connected with a rod body, an interface board via hole penetrates through the top of the interface board, a control board via hole penetrates through the top of the control board, and an inversion board via hole penetrates through the top of the inversion board; and the periphery of the head part penetrates through and is fixedly connected with the inner wall of the interface board via hole. According to the utility model, the overcurrent column assembly is arranged, and the shapes of the head part, the middle column and the rod body are matched with the design and production of the multilayer board, so that the positioning, deviation control and maintenance are facilitated, and meanwhile, the low impedance is convenient for large current to pass.

Description

Technical Field

[0001] The utility model relates to the field of servo controllers, in particular to a large-current overcurrent column of a micro servo controller. Background Art

[0002] A servo controller, also known as a servo driver, is a controller used to control a servo motor and belongs to a part of the servo system. It is mainly applied to high-precision positioning systems. Generally, the servo motor is controlled in three ways: position, speed, and torque to achieve high-precision positioning of the transmission system.

[0003] As the main current path of the system, the large-current overcurrent column of the micro servo controller undertakes the input and output of large currents. Secondly, the overcurrent column undertakes the positioning and supporting functions in terms of structure, and together with components such as connectors and copper posts, constitutes the structural support of the system. Most of the existing overcurrent columns use pin headers or nail-like long pins to achieve the overcurrent column function.

[0004] Considering the limited overcurrent capacity of pin headers, this is generally only applicable to small-current occasions, and pin headers occupy a lot of space. On the other hand, the nail-like long pins need to be assembled from the bottom up, and the installation and production processes are relatively complex, and problems such as solder flow are likely to occur during welding. Therefore, a large-current overcurrent column of a micro servo controller is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a large-current overcurrent column of a micro servo controller, aiming to improve the problem in the prior art that the applicable range of the overcurrent column is reduced due to the limited overcurrent capacity of pin headers.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A large-current overcurrent column of a micro servo controller includes a power terminal, the bottom of the power terminal is fixedly connected with an interface board, an overcurrent column assembly is arranged on the interface board, a control board is arranged on the overcurrent column assembly, and an inverter board is arranged on the overcurrent column assembly;

[0007] The overcurrent column assembly includes a head, the bottom end of the head is fixedly connected with a middle column, and the bottom end of the middle column is fixedly connected with a rod body.

[0008] As a further description of the above technical scheme:

[0009] An interface board through-hole penetrates through the top of the interface board, a control board through-hole penetrates through the top of the control board, and an inverter board through-hole penetrates through the top of the inverter board.

[0010] As a further description of the above technical scheme:

[0011] The outer periphery of the head penetrates and is fixedly connected to the inner wall of the via hole of the interface board. The top end of the rod body penetrates and is fixedly connected to the inner wall of the via hole of the control board. The bottom end of the rod body penetrates and is fixedly connected to the inner wall of the via hole of the inverter board.

[0012] As a further description of the above technical solution:

[0013] The top of the middle column contacts the bottom of the interface board, and the height of the head is slightly greater than the thickness of the interface board.

[0014] As a further description of the above technical solution:

[0015] The diameter of the middle column is greater than the diameter of the head, and the diameter of the middle column is greater than the inner diameter of the via hole of the interface board.

[0016] As a further description of the above technical solution:

[0017] The diameter of the head is adapted to the inner diameter of the via hole of the interface board.

[0018] As a further description of the above technical solution:

[0019] The inner diameter of the via hole of the interface board is slightly smaller than the inner diameter of the via hole of the control board, and the inner diameter of the via hole of the interface board is slightly smaller than the inner diameter of the via hole of the inverter board.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, by providing an overcurrent column component, through the shape matching of the head, middle column and rod body for the design and production of the multilayer board, it is beneficial for positioning, deviation control and maintenance. At the same time, the low impedance is convenient for passing large current.

[0022] 2. In the utility model, by providing an overcurrent column component, through the installation method of the head, middle column and rod body, it can support the welding method from top to bottom, avoiding the problems of appearance damage and low yield rate existing in the traditional method. Description of the Drawings

[0023] Figure 1 It is the front view structural schematic diagram of a large-current overcurrent column of a micro servo controller proposed by the utility model;

[0024] Figure 2 It is the sectional view structural schematic diagram of the interface board, control board and inverter board of a large-current overcurrent column of a micro servo controller proposed by the utility model;

[0025] Figure 3 It is the front view structural schematic diagram of the overcurrent column component of a large-current overcurrent column of a micro servo controller proposed by the utility model;

[0026] Figure 4The present invention is a bottom view structural diagram of an interface board of a large current flow column of a micro servo controller proposed by the present invention.

[0027] Legend:

[0028] 1. Power terminal; 2. Interface board; 3. Control board; 4. Inverter board; 5. Interface board via; 6. Control board via; 7. Inverter board via; 8. Current column assembly; 81. Head; 82. Middle column; 83. Rod body. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1 - Figure 2 The utility model provides an embodiment: a large current overcurrent column of a micro servo controller, including a power terminal 1, through which the power line of the system external power supply and the motor, as well as the system grounding signal are connected, an interface board 2 is fixedly connected to the bottom of the power terminal 1, and an overcurrent column assembly 8 is arranged on the interface board 2. The overcurrent column assembly 8 ensures that the rated current requirement is met, and also plays a role in fixing and supporting the structure of the whole machine. A control board 3 is arranged on the overcurrent column assembly 8, and an inverter board 4 is arranged on the overcurrent column assembly 8.

[0031] Reference Figure 3 and Figure 4 The current column assembly 8 includes a head 81, which is cylindrical and fixed to the interface board 2 by welding. The bottom end of the head 81 is fixedly connected with a middle column 82, through which the current transmitted by the head 81 is conducted to the rod body 83, which plays a positioning and supporting role during the welding process. The bottom end of the middle column 82 is fixedly connected with the rod body 83, and the transition area from the middle column 82 to the rod body 83 is chamfered. This design can ensure the height error during assembly. The length of the rod body 83 slightly protrudes from the inverter board via 7, thereby ensuring the quality of welding.

[0032] Reference Figure 2 and Figure 4 The top of the interface board 2 is penetrated by an interface board through-hole 5, and the interface board through-hole 5 is provided with multiple groups. The top of the control board 3 is penetrated by a control board through-hole 6, and the control board through-hole 6 is provided with multiple groups. The top of the inverter board 4 is penetrated by an inverter board through-hole 7, and the control board through-hole 6 is provided with multiple groups. Through the provision of multiple groups of interface board through-holes 5 and control board through-holes 6 and control board through-holes 6, it is convenient to install multiple groups of current column assemblies 8.

[0033] Refer to Figure 2 and Figure 4 , the outer periphery of the head 81 penetrates and is fixedly connected to the inner wall of the interface board via hole 5. The current transmitted by the power terminal 1 is conveyed to the middle column 82 through the head 81. The top end of the rod body 83 penetrates and is fixedly connected to the inner wall of the control board via hole 6. The current conducted by the middle column 82 is conveyed to the control board 3 through the rod body 83. The bottom end of the rod body 83 penetrates and is fixedly connected to the inner wall of the inverter board via hole 7. The current conducted by the middle column 82 is conveyed to the inverter board 4 through the rod body 83.

[0034] Refer to Figure 1 and Figure 2 , the top of the middle column 82 contacts the bottom of the interface board 2. The contact plane between the middle column 82 and the head 81 is flat, ensuring the welding process. This plane can fit well to the back of the interface board 2. The height of the head 81 is slightly greater than the thickness of the interface board 2. The diameter of the middle column 82 is greater than the diameter of the head 81. Due to the larger diameter of the middle column 82, it is beneficial to reduce the impedance of the current path so as to be competent for a greater current capacity. The diameter of the middle column 82 is greater than the inner diameter of the interface board via hole 5. Since the diameter of the middle column 82 is greater than the inner diameter of the interface board via hole 5, after the middle column 82 is filled with solder paste, the current-carrying column can maintain an upright position well.

[0035] Refer to Figure 2 , the diameter of the head 81 is adapted to the inner diameter of the interface board via hole 5, facilitating the insertion of the head 81 into the interface board via hole 5. The inner diameter of the interface board via hole 5 is slightly smaller than the inner diameter of the control board via hole 6, and the inner diameter of the interface board via hole 5 is slightly smaller than the inner diameter of the inverter board via hole 7. Since the inner diameter of the interface board via hole 5 is slightly smaller than the inner diameters of the control board via hole 6 and the inverter board via hole 7, the mutual position deviation of multiple current-carrying column assemblies 8 can be effectively controlled, thus not affecting the subsequent production welding docking problem.

[0036] Working principle: The current is conveyed to the interface board 2 through the power terminal 1, reaches the pad where the head 81 is located through the path of the interface board 2, the current is conducted to the middle column 82 through the head 81, the current is conducted to the rod body 83 through the middle column 82, the current is respectively conducted to the control board 3 and the inverter board 4 through the rod body 83. The low impedance of the middle column 82 can ensure the passage of a greater current. The center of gravity of the current-carrying column assembly 8 biases towards the middle column 82 and the head 81, thus ensuring the positioning and deviation control during the welding process.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features thereof. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high current flow column of a micro servo controller, comprising a power terminal (1), characterized in that: The bottom of the power terminal (1) is fixedly connected to an interface board (2), a current column assembly (8) is arranged on the interface board (2), a control board (3) is arranged on the current column assembly (8), and an inverter board (4) is arranged on the current column assembly (8); The flow column assembly (8) comprises a head (81), the bottom end of the head (81) is fixedly connected to a middle column (82), and the bottom end of the middle column (82) is fixedly connected to a rod body (83).

2. A high current flow column of a micro servo controller according to claim 1, characterized in that: The top of the interface board (2) is penetrated by an interface board via (5), the top of the control board (3) is penetrated by a control board via (6), and the top of the inverter board (4) is penetrated by an inverter board via (7).

3. A high current flow column of a micro servo controller according to claim 1, characterized in that: The outer periphery of the head (81) penetrates and is fixedly connected to the inner wall of the interface board through hole (5), the top end of the rod body (83) penetrates and is fixedly connected to the inner wall of the control board through hole (6), and the bottom end of the rod body (83) penetrates and is fixedly connected to the inner wall of the inverter board through hole (7).

4. A high current flow column of a micro servo controller according to claim 1, characterized in that: The top of the center column (82) contacts the bottom of the interface plate (2), and the height of the head (81) is greater than the thickness of the interface plate (2).

5. A high current flow column of a micro servo controller according to claim 4, characterized in that: The diameter of the middle column (82) is greater than the diameter of the head (81), and the diameter of the middle column (82) is greater than the inner diameter of the interface board through hole (5).

6. A high current flow column of a micro servo controller according to claim 5, characterized in that: The diameter of the head (81) is adapted to the inner diameter of the interface board through hole (5).

7. A high current flow column of a micro servo controller according to claim 6, characterized in that: The inner diameter of the interface board via (5) is smaller than the inner diameter of the control board via (6), and the inner diameter of the interface board via (5) is smaller than the inner diameter of the inverter board via (7).

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