Soft starter

Abstract

The utility model relates to a soft starter. The technical problem to be solved by the utility model is to provide a soft starter. According to the technical scheme, the soft starter comprises a soft starter base, a soft starter upper shell, a soft starter operator and a soft starter upper cover, the soft starter operator comprises an operator bottom plate, an operator upper shell, an operator circuit board, a display screen and operation buttons, and the operator bottom plate comprises a bottom plate body. The upper end of the bottom plate body inclines upwards to form a bottom plate elastic pressing part, and a pressing part clamping block is arranged on the outer side of the bottom plate elastic pressing part. Compared with the prior art, the soft starter has the advantages that the soft starter operator and the host are designed separately, the soft starter operator can be installed on the cabinet door and the soft starter host can be installed in the cabinet body according to needs, modular assembly is achieved, soft starters of different models or specifications can be compatible by replacing or adjusting the operator assembly, and the soft starter is convenient to use. And the universality and the flexibility are improved.

Description

Technical Field

[0001] This utility model relates to a soft starter. Background Technology

[0002] A soft starter is a power electronic device used to control the starting and stopping of a motor. It achieves smooth starting and stopping by adjusting the voltage applied to the motor, thereby reducing current surges and mechanical stress during motor startup. Traditional soft starters have the operator fixed to the main unit, requiring the cabinet door to be opened for operation. This increases the risk of electric shock and equipment contamination in humid or dusty environments. Failures necessitate complete replacement, resulting in high maintenance costs. Some designs mount the soft starter entirely on the cabinet door, significantly increasing the door's weight (exceeding 50kg in some cases), making opening and closing difficult, and causing hinge deformation. Soft starters also lack modularity and have poor versatility. Furthermore, traditional soft starters use numerous screws to fix internal components, making assembly time-consuming (averaging over 30 minutes per unit), and requiring disassembly layer by layer for maintenance, extending downtime. This paper proposes improvements and optimizations to address these issues. Utility Model Content

[0003] To address the above problems, the technical problem to be solved by this utility model is to provide a soft starter.

[0004] The technical solution adopted by this utility model soft starter is as follows: It includes a soft starter base, a soft starter upper shell, a soft starter operator and a soft starter upper cover disposed on the soft starter upper shell. The soft starter operator is characterized by comprising an operator base plate, an operator upper shell, an operator circuit board disposed inside the operator upper shell, a display screen and an operation button connected to the circuit board. The operator base plate includes a base plate body, the upper end of which is inclined upward to form a base plate elastic pressing part. A pressing part locking block is provided on the outside of the base plate elastic pressing part. The operator upper shell includes an operator upper shell housing and an operator upper shell end plate. The operator upper shell housing is snapped together with the base plate body. One end of the bottom of the operator upper shell housing is provided with a housing pressing clearance opening for facilitating pressing by the base plate elastic pressing part, and the other end is provided with a housing docking opening. The operator upper shell end plate is provided with an upper shell end plate limiting opening corresponding to the base plate elastic pressing part.

[0005] The soft starter upper shell is provided with an internal cavity for placing the soft starter operator. The internal cavity is provided with an end plate receiving groove for limiting the end plate of the operator upper shell and a pressing part interface for pressing the elastic pressing part of the base plate. The pressing part interface is provided with a soft starter upper shell locking block to prevent the pressing part from retracting when it is engaged. The internal cavity is also provided with an inner hook and an inner hook adjustment port that are connected to the docking opening of the shell.

[0006] The base plate is provided with an interface docking hole for the interface output of the operator circuit board, and the bottom of the inner cavity of the soft starter upper shell is provided with a first opening of the inner cavity corresponding to the interface docking hole.

[0007] The outer side of the elastic pressing part of the base plate is provided with a hand pressing protrusion for easy hand pressing.

[0008] The soft starter's upper shell also has a second opening at the bottom of its internal cavity.

[0009] The soft starter cover includes a cover body and a cover side. The front end of the cover body is provided with a cover insert, and the cover side is provided with a cover side hook. The soft starter shell is provided with a wiring cavity. The wiring cavity is provided with a shell socket for inserting the cover insert and a cover side latch for engaging the cover side hook.

[0010] The advantages of this utility model of soft starter are as follows: the soft starter operator is designed separately from the main unit, allowing the soft starter operator to be installed on the cabinet door while the soft starter main unit is installed inside the cabinet as needed, achieving modular assembly. Different models or specifications of soft starters can be made compatible by replacing or adjusting the operator components, improving versatility and flexibility; the snap-on connection allows the soft starter operator to be quickly disassembled through the elastic pressing part of the base plate during maintenance, eliminating the need to disassemble internal components layer by layer, reducing downtime and improving maintenance efficiency. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of the soft starter of this utility model;

[0013] Figure 2 This is an exploded view of the soft starter operator of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the upper shell of the operator of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the base plate of the operator of this utility model;

[0016] Figure 5 This is a schematic diagram of the front structure of the upper shell of the soft starter of this utility model;

[0017] Figure 6 This is a schematic diagram of the back structure of the soft starter upper shell of this utility model;

[0018] Figure 7 This is a schematic diagram of the structure of the soft starter cover of this utility model. Detailed Implementation

[0019] like Figure 1-7 As shown, the soft starter of this utility model includes a soft starter base 1, a soft starter upper shell 2, a soft starter operator 3 and a soft starter upper cover 4 disposed on the soft starter upper shell 2. The soft starter operator 3 includes an operator base plate 6, an operator upper shell 7, an operator circuit board 10 disposed inside the operator upper shell 7, a display screen 8 and an operation button 9 connected to the circuit board. The operator base plate 6 includes a base plate body 18, the upper end of which is inclined upward to form a base plate elastic pressing part 19. The outer side of the pressing part 19 is provided with a pressing part locking block 20. The upper shell 7 of the operator includes an upper shell housing 11 and an upper shell end plate 12. The upper shell housing 11 is snapped together with the base plate 18. One end of the bottom of the upper shell housing 11 is provided with a shell pressing clearance opening 13 for facilitating pressing by the elastic pressing part 19 of the base plate, and the other end is provided with a shell docking opening 14. The upper shell end plate 12 is provided with an upper shell end plate limiting opening 15 corresponding to the elastic pressing part 19 of the base plate; the soft starter The upper shell 2 is provided with a soft starter upper shell internal cavity 24 for placing the soft starter operator 3. The soft starter upper shell internal cavity 24 is provided with an end plate receiving groove 25 for limiting the operator upper shell end plate 12 and a pressing part interface 26 for pressing the bottom plate elastic pressing part 19. The pressing part interface 26 is provided with a soft starter upper shell locking block 27 for preventing the pressing part locking block 20 from retracting when it is engaged. The soft starter upper shell internal cavity 24 is also provided with a soft starter upper shell inner cavity that is aligned with the shell docking opening 14. The design features a snap hook 28 and an inner snap hook adjustment port 29, allowing the soft starter operator 3 to be separated from the soft starter main unit. The soft starter operator 3 can be mounted on the cabinet door while the soft starter main unit remains inside the cabinet, achieving modular assembly. Different models or specifications of soft starters can be made compatible by replacing or adjusting the operator components, improving versatility and flexibility. The snap-fit ​​connection allows for quick disassembly of the soft starter operator 3 during maintenance by pressing the elastic pressing part 19 on the base plate, eliminating the need to disassemble internal components layer by layer, reducing downtime and improving maintenance efficiency.

[0020] The base plate 18 is provided with an interface docking hole 21 for the interface output of the operator circuit board 10. The bottom of the soft starter upper shell internal cavity 24 is provided with an internal cavity first opening 30 corresponding to the interface docking hole 21, which facilitates the soft starter operator 3 to make internal communication wiring with the internal host.

[0021] The outer side of the elastic pressing part 19 of the base plate is provided with a hand pressing protrusion 22 for easy hand pressing, making the operation more convenient and smooth.

[0022] The bottom of the inner cavity 24 of the upper shell of the soft starter is also provided with a second opening 31 for the inner cavity, which is used to prevent the soft starter operator 3 from being damaged and unable to be removed after being stuck. A tool is used to hold the second opening 31 of the inner cavity to assist in its removal.

[0023] The soft starter cover 4 includes a cover body 34 and a cover side 35. The front end of the cover body 34 is provided with a cover insert 36, and the cover side 35 is provided with a cover side hook 37. The soft starter shell 2 is provided with a wiring cavity 39. The wiring cavity 39 is provided with a shell socket 40 for inserting the cover insert 36 and a cover side latch 41 for engaging the cover side hook 37. This reduces screw installation, makes installation and disassembly easier, and ensures protection while making maintenance more convenient.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. A soft starter comprising a soft starter base (1), a soft starter upper shell (2), a soft starter operator (3) arranged on the soft starter upper shell (2) and a soft starter upper cover (4), characterized in that: The soft starter operator (3) comprises an operator bottom plate (6), an operator upper shell (7), an operator circuit board (10) arranged in the operator upper shell (7), a display screen (8) and an operation button (9) connected with the circuit board, the operator bottom plate (6) comprises a bottom plate body (18), the upper end of the bottom plate body (18) is inclined upward to form a bottom plate elastic pressing part (19), the outer side of the bottom plate elastic pressing part (19) is provided with a pressing part clamping block (20), the operator upper shell (7) comprises an operator upper shell shell body (11) and an operator upper shell end plate (12), the operator upper shell shell body (11) is clamped with the bottom plate body (18) together, one end of the bottom of the operator upper shell shell body (11) is provided with a shell pressing clearance (13) for facilitating the pressing of the bottom plate elastic pressing part (19), and the other end is provided with a shell butt joint opening (14), the operator upper shell end plate (12) is provided with an upper shell end plate limiting opening (15) corresponding to the bottom plate elastic pressing part (19). The soft starter upper shell (2) is provided with a soft starter upper shell built-in cavity (24) for placing the soft starter operator (3), the soft starter upper shell built-in cavity (24) is provided with an end plate receiving groove (25) for limiting the operator upper shell end plate (12) and a pressing part butt joint (26) for pressing the bottom plate elastic pressing part (19), the pressing part butt joint (26) is provided with a soft starter upper shell locking block (27) for preventing the pressing part clamping block (20) from being clamped and retreated, and the soft starter upper shell built-in cavity (24) is further provided with a soft starter upper shell inner clamping hook (28) and an inner clamping hook adjusting opening (29) corresponding to the shell butt joint opening (14).

2. The soft starter of claim 1, wherein: The bottom plate body (18) is provided with an interface butt joint hole (21) for the interface end output of the operator circuit board (10), and the bottom of the soft starter upper shell built-in cavity (24) is provided with a built-in cavity first opening (30) corresponding to the interface butt joint hole (21).

3. The soft starter of claim 1, wherein: The outer side of the bottom plate elastic pressing part (19) is provided with a hand pressing protrusion (22) for facilitating hand pressing.

4. The soft starter of claim 1, wherein: The bottom of the soft starter upper shell built-in cavity (24) is further provided with a built-in cavity second opening (31).

5. The soft starter of claim 1, wherein: The soft starter upper cover (4) comprises an upper cover main body (34) and an upper cover side part (35), the front end of the upper cover main body (34) is provided with an upper cover insertion block (36), the upper cover side part (35) is provided with an upper cover side clamping hook (37), the soft starter upper shell (2) is provided with a wiring cavity (39), the wiring cavity (39) is provided with an upper shell insertion opening (40) for inserting the upper cover insertion block (36) and an upper cover side clamping opening (41) for clamping the upper cover side clamping hook (37).

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