Stepping motor driver

Abstract

The utility model relates to a stepping motor driver, which comprises a functional assembly (6), a main body shell (7) and a rear cover (8), after the functional assembly (6) is arranged in the main body shell (7), the rear cover (8) and the main body shell (7) are pressed and fixed, the functional assembly (6) comprises a mounting bracket (1), a PCB (printed circuit board) A (2) and a PCB B (3), and the PCB A (2) and the PCB B (3) are respectively fixed on the mounting bracket (1). Compared with the prior art, the utility model has the advantages of abundant functions, easy assembly, easy disassembly, small volume and the like.

Description

Technical Field

[0001] This utility model relates to a stepper motor, and more particularly to a stepper motor driver. Background Technology

[0002] With the rapid development of the stepper driver industry, the market demands higher and higher performance from stepper drivers. In order to meet the needs of limited space and different usage environments, stepper driver products with high integration and diverse functions are usually sought.

[0003] The main technical defects of existing technologies include:

[0004] 1) The functional requirements of most stepper motor drivers on the market are increasing. The setting of various connectors in the product design and production process makes the PCB board structure more and more compact, which increases the difficulty of layout and wiring. In the product structure design process, the installation and fixing of the PCB board becomes more complicated.

[0005] 2) At the same time, in order to meet the ease of use in various confined spaces, the design of stepper motor drivers is becoming smaller and smaller; assembly becomes more complicated, product stability is poor; and the performance of the machine faces great challenges. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a stepper motor driver.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] According to one aspect of the present invention, a stepper motor driver is provided, including a functional component, a main body housing, and a rear cover. After the functional component is installed in the main body housing, the rear cover is pressed and fixed to the main body housing. The functional component includes a mounting bracket, a PCB board A, and a PCB board B, and the PCB board A and PCB board B are respectively fixed on the mounting bracket.

[0009] As a preferred technical solution, the mounting bracket is provided with a first mounting hole, and the PCB board A is provided with a third mounting hole, the third mounting hole being aligned with the first mounting hole.

[0010] As a preferred technical solution, the third mounting hole and the first mounting hole are locked and fixed by the first screw.

[0011] As a preferred technical solution, both the third mounting hole and the first mounting hole are provided in twos.

[0012] As a preferred technical solution, the mounting bracket is provided with a second mounting hole, and the PCB board B is provided with a fourth mounting hole, the fourth mounting hole being aligned with the second mounting hole.

[0013] As a preferred technical solution, the fourth mounting hole and the second mounting hole are locked and fixed by the second screw.

[0014] As a preferred technical solution, both the fourth mounting hole and the second mounting hole are provided in twos.

[0015] As a preferred technical solution, the mounting bracket is a bracket formed by one-piece sheet metal molding, which is provided with a fixing groove, and the rear cover is provided with a raised structural rib corresponding to the fixing groove.

[0016] As a preferred technical solution, the functional component slides into the main body shell and is fixed in the mounting groove of the main body shell.

[0017] As a preferred technical solution, the rear cover is provided with a buckle, and the main body shell is provided with buckle holes corresponding to the buckle.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1) Compared with common stepper motor drivers on the market, this utility model has the advantages of rich functions, easy assembly, easy disassembly, and small size;

[0020] 2) The PCB board of this utility model is fixed to the mounting bracket. After installation, the overall functional components are matched with the main body of the shell and gently slid in. Finally, the back cover is pressed down. The raised structural ribs on the back cover press the functional components tightly. The buckles on the back cover are firmly locked to the shell, making the structural components stable and not shaking. The assembly of the entire product reduces the screw tightening process and greatly improves the product assembly efficiency.

[0021] 3) The mounting bracket of this utility model adopts an integrated sheet metal forming process, replacing the aluminum die-casting or aluminum extrusion heat sink; the sheet metal process has good flexibility and ductility, and can be flexibly adapted to PCB board assembly during structural design. At the same time, it saves costs, reduces product weight, and makes the driver lighter and more compact. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is an exploded structural diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the mounting bracket of this utility model;

[0025] Figure 4 This is an exploded structural diagram of the functional components of this utility model;

[0026] Figure 5This is a schematic diagram of the assembled structure of the functional components of this utility model.

[0027] Wherein, 1 is the mounting bracket, 11 is the first mounting hole, 12 is the second mounting hole, 13 is the fixing groove, 2 is PCB board A, 21 is the third mounting hole, 3 is PCB board B, 31 is the fourth mounting hole, 4 is the first screw, 5 is the second screw, 6 is the functional component, 7 is the main body shell, 71 is the mounting groove, 72 is the snap hole, 8 is the back cover, and 81 is the snap. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present utility model.

[0029] like Figure 1 and Figure 2 As shown, a stepper motor driver includes a functional component 6, a main housing 7, and a rear cover 8. After the functional component 6 is installed into the main housing 7, the rear cover 8 is pressed and fixed to the main housing 7. Figure 3 and Figure 4 As shown, the functional component 6 includes a mounting bracket 1, a PCB board A2, and a PCB board B3. PCB board A2 and PCB board B3 are respectively fixed on the mounting bracket 1. The entire stepper motor driver uses only four screws to complete the installation of the double-layer board. The entire product is assembled by snap-fit.

[0030] like Figure 3 and Figure 4 As shown, the mounting bracket 1 has a first mounting hole 11, and the PCB board A2 has a third mounting hole 21, which is aligned with the first mounting hole 11. The third mounting hole 21 and the first mounting hole 11 are locked together by a first screw 4. The presence of two third mounting holes 21 and two first mounting holes 11 significantly improves the reliability of the fixation.

[0031] like Figure 3 and Figure 4 As shown, the mounting bracket 1 has a second mounting hole 12, and the PCB board B3 has a fourth mounting hole 31, which is aligned with the second mounting hole 12. The fourth mounting hole 31 and the second mounting hole 12 are locked together by a second screw 5. The presence of two fourth mounting holes 31 and two mounting holes 12 significantly improves the reliability of the fixation.

[0032] like Figure 3As shown, the mounting bracket 1 is a one-piece sheet metal bracket, replacing the aluminum die-casting or aluminum extrusion heat sink; sheet metal processing has good flexibility and ductility, and can be flexibly adapted to PCB board assembly during structural design. It also saves costs, reduces product weight, and makes the driver lighter and more compact. The mounting bracket 1 is provided with a fixing groove 13, and the rear cover 8 is provided with raised structural ribs corresponding to the fixing groove 13, such as... Figure 2 As shown.

[0033] like Figure 5 As shown, after the functional component 6 slides into the main body shell 7, it is fixed with the mounting groove 71 of the main body shell 7. The rear cover 8 is provided with a buckle 81, and the main body shell 7 is provided with a buckle hole 72 corresponding to the buckle 81.

[0034] The specific installation process of this utility model is as follows:

[0035] First, align the third mounting hole 21 of PCB board A2 with the first mounting hole 11 of mounting bracket 1, and tighten it with the first screw 4. Next, align the fourth mounting hole 31 of PCB board B3 with the second mounting hole 12 of mounting bracket 1, and tighten it with the second screw 5, assembling it into functional component 6. Then, slide functional component 6 into the main housing 7 until it is fully inserted, completing the installation of functional component 6. Finally, press the clip 81 on the back cover 8 against the clip hole 72 on the main housing 7. The raised structural ribs on the back cover 8 will press down on functional component 6, making it stable and preventing wobbling. At this point, the back cover 8 and the main housing 7 are successfully matched, completing the installation of the overall stepper driver.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A stepper motor driver, characterized in that, It includes a functional component (6), a main body shell (7) and a back cover (8). After the functional component (6) is installed into the main body shell (7), the back cover (8) is pressed and fixed to the main body shell (7). The functional component (6) includes a mounting bracket (1), a PCB board A (2) and a PCB board B (3). The PCB board A (2) and the PCB board B (3) are respectively fixed on the mounting bracket (1).

2. The stepper motor driver according to claim 1, characterized in that, The mounting bracket (1) is provided with a first mounting hole (11), and the PCB board A (2) is provided with a third mounting hole (21), which is aligned with the first mounting hole (11).

3. A stepper motor driver according to claim 2, characterized in that, The third mounting hole (21) and the first mounting hole (11) are locked and fixed by the first screw (4).

4. A stepper motor driver according to claim 2, characterized in that, Both the third mounting hole (21) and the first mounting hole (11) are provided in twos.

5. A stepper motor driver according to claim 1, characterized in that, The mounting bracket (1) is provided with a second mounting hole (12), and the PCB board B (3) is provided with a fourth mounting hole (31), which is aligned with the second mounting hole (12).

6. A stepper motor driver according to claim 5, characterized in that, The fourth mounting hole (31) and the second mounting hole (12) are locked and fixed by the second screw (5).

7. A stepper motor driver according to claim 5, characterized in that, The fourth mounting hole (31) and the second mounting hole (12) are each provided in twos.

8. A stepper motor driver according to claim 1, characterized in that, The mounting bracket (1) is a bracket formed by integral sheet metal, and a fixing groove (13) is provided on it. The rear cover (8) is provided with a raised structural rib corresponding to the fixing groove (13).

9. A stepper motor driver according to claim 1, characterized in that, After the functional component (6) slides into the main body shell (7), it is fixed to the mounting groove (71) of the main body shell (7).

10. A stepper motor driver according to claim 1, characterized in that, The rear cover (8) is provided with a buckle (81), and the main body shell (7) is provided with a buckle hole (72) corresponding to the buckle (81).

Images