Soft starter convenient to disassemble and assemble

Abstract

A soft starter convenient to disassemble and assemble comprises an installation shell and an installation cover covering the installation shell, positioning grooves are formed in two side plates of the installation shell in a penetrating mode, the number of the positioning grooves in each side is at least two, and part of the side plates of the installation shell are allowed to be used as inserted structures through the positioning grooves. Fixing arms matched with the positioning grooves in number and position are arranged on the inner side walls of the two side plates of the mounting cover, the fixing arms extend out of the mounting cover, inserting pieces arranged in the positioning grooves are arranged at the outer ends of the fixing arms, inserting grooves matched with inserted structures in an inserted mode are formed in the inserting pieces, and the inserting grooves are matched with the inserted structures in an inserted mode. And the tight force generated by insertion is limited by the size of the slot. The beneficial effects of the utility model lie in that the installation cover and the installation shell are prevented from being separated in a covering state through a movable plugging mode, and the mode does not need to be operated one by one in an unlocking stage, is completely not influenced by the number of locking parts, can realize synchronous operation, and does not cause the damage of the plug-in.

Description

Technical Field

[0001] The utility model relates to the technical field of soft starters, in particular to a soft starter which is convenient to assemble and disassemble. Background Art

[0002] A soft starter is a motor control device that integrates soft starting, soft stopping, light load energy saving and multiple protection functions. It not only enables smooth and impactless starting of the motor throughout the starting process, but also adjusts parameters during the starting process, such as current limit value and starting time, according to the characteristics of the motor load.

[0003] Publication (announcement) number: CN220087600U discloses a soft starter for a generator, including a mounting base, a fixing cover is provided at the front end of the mounting base, a first fixing plate is fixedly provided on the surface of the mounting base, a second fixing plate is provided on the surface of the fixing cover close to the mounting base, and the first fixing plate is close to the second fixing plate, side frames are provided at both ends of the mounting base, positioning plates are provided at both ends of the surface of the second fixing plate, a card plate is installed on the end surface of the positioning plate, the surface of the card plate is provided inside the side frame, a hook plate is fixedly provided on the other end of the card plate, and the material of the card plate is set to plastic material. After the mounting base and the fixed cover of this soft starter are connected, the side frame, the card plate and the hook are combined to prevent the mounting base and the fixed cover from separating. However, this method has a defect, that is, when releasing the connection between the mounting base and the fixed cover, it is necessary to use a tool to make the card plate deform under force, so that the card hook can release the hooking with the side frame and enter the internal space of the side frame through the force deformation. This method can easily cause creases on the card plate, affecting its structural stability. Although the card plate can be replaced by bolt connection, it undoubtedly increases the cost. At the same time, such a structure has multiple locking structures, which need to be operated one by one when unlocking, which also makes unlocking inconvenient. Utility Model Content

[0004] The present invention aims to solve the above-mentioned shortcomings of the prior art and provide a soft starter that is easy to assemble and disassemble to solve the above-mentioned problems.

[0005] The utility model solves the technical problem by adopting a technical solution: this soft starter that is easy to disassemble and assemble comprises a mounting shell and a mounting cover covering the mounting shell, both side panels of the mounting shell are penetrated by positioning grooves, there are at least two positioning grooves on each side, and part of the side panels of the mounting shell can be used as a plug-in structure through the positioning grooves, the inner side walls of the two side panels of the mounting cover are provided with fixed arms that match the number and position of the positioning grooves, the fixed arms extend outside the mounting cover, and a plug-in placed in the positioning groove is provided on the outer end, the plug-in is provided with a slot that can be plugged into and cooperate with the plug-in structure, and the tightness generated by the plug-in is limited by the size of the slot.

[0006] To be further improved, the slot is divided into a sliding part and a locking part along the assembly guide, and the plugged structure and the sliding part have a clearance fit, and the locking part has an interference fit.

[0007] Further improvement is made, the matching clearance between the slot and the plugged structure gradually decreases along the assembly guide.

[0008] To be further improved, the positioning groove has an assembly base surface and a stop base surface located on both sides of the plug-in, and a stop member that can abut against the plug-in is provided on the assembly base surface, so that the plug-in is squeezed by the stop member so that the plug-in remains in contact with the stop base surface.

[0009] For further improvement, the stop member has a guide base surface opposite to the assembly base surface, and the guide base surface has a slope that tilts outward from top to bottom, so that the width of the stop member gradually widens from top to bottom through the slope, and the distance formed between the part of the stop member where the width is the maximum and the stop base surface is consistent with the width of the plug-in.

[0010] For further improvement, heat dissipation fins are provided on the back of the mounting shell.

[0011] The beneficial effects of the utility model are:

[0012] The present invention uses a positioning groove to clearly define the connection position of the plug-in on the mounting shell, and the plug-in is arranged on the mounting shell in the form of a plug-in, that is, after entering the positioning groove, it moves in the direction indicated by the assembly guide direction, and the plug-in is plugged into the plugged structure through movement. This method is more convenient than the existing technology, especially in the unlocking stage, there is no need to operate one by one, and it is not affected by the number of locking parts (that is, the more locking parts there are, the better the locking stability is), and it can be carried out synchronously without causing damage to the plug-in. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the full-section explosion structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 A partial enlarged schematic diagram of part A. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] The utility model discloses a soft starter of convenient dismounting, including installation shell 1 and the installation cover 2 of covering on installation shell 1, its characterized in that: the both sides board of installation shell 1 is provided with the positioning slot 11, and the positioning slot 11 of each side has at least two, and allows through the positioning slot 11 can be used as the plug-in structure 3 of partial side board of installation shell 1, the inner side wall of the both sides board of installation cover 2 is provided with the fixed arm 21 matched with the number and position of positioning slot 11, and the fixed arm 21 extends to installation cover 2 outside, and the end portion on located outside is provided with the plug-in piece 4 placed in positioning slot 11, is provided with the insertion slot 41 of the plug-in cooperation with plug-in structure 3 on plug-in piece 4, and the close force generated by plug-in is limited by the size of insertion slot 41.

[0018] The insertion slot 41 is divided into sliding part 41-a and locking part 41-b along the assembly guide, the plug-in structure 3 and the sliding part 41-a are clearance fit, and the locking part 41-b is interference fit, the plug-in piece 4 is inserted into the plug-in structure 3 along the assembly guide by using the sliding part 41-a, i.e. the plug-in structure 3 is made to enter into the insertion slot 41 and is clearance fit with the sliding part 41-a, i.e. the plug-in piece 4 can slide along the assembly guide, and by sliding, the plug-in structure 3 is made to be interference fit with the locking part 41-a when reaching the locking part 41-a, so that the plug-in piece 4 is locked in the plug-in structure 3, to complete the assembly connection of the installation shell 1 and the installation cover 2, and such connection assembly does not need tools, does not need additional parts such as screws, etc., and does not need to be operated one by one, suitable for quick assembly and convenient assembly.

[0019] The clearance of the insertion slot 41 and the plug-in structure 3 gradually decreases along the assembly guide, the slot length of the insertion slot 41 changes linearly from the sliding part 41-a to the locking part 41-b, so that the plug-in process is relatively stable, and the phenomenon of being stuck in the middle of plug-in can be avoided.

[0020] The positioning groove 11 has an assembly base surface 11-a and a stop base surface 11-b located on both sides of the plug-in 4. The assembly base surface 11-a is provided with a stop member 5 that can abut against the plug-in 4, so that the plug-in 4 is squeezed by the stop member 5 so that the plug-in 4 remains in contact with the stop base surface 11-b, that is, the stop member 5 is used to further increase the stability of the plug-in 4 inserted into the plug-in structure 3, thereby increasing the connection stability of the mounting shell 1 and the mounting cover 2, and at the same time, it is necessary to apply a certain force when releasing the connection between the mounting shell 1 and the mounting cover 2.

[0021] The stop member 5 has a guide base surface 51 opposite to the assembly base surface 11-a, and the guide base surface 51 has a slope that tilts outward from top to bottom, so that the width of the stop member 5 gradually widens from top to bottom through the slope, and the distance formed between the part of the stop member 5 with the maximum width and the stop base surface 11-b is smaller than the width of the plug-in 4, that is, after the plug-in 4 enters the positioning groove 11, the guide base surface 51 can be used to guide the plug-in 4 in the positioning groove 11 to determine the landing point, and then the distance formed between the stop member 5 and the stop base surface 11-b is used to allow the plug-in 4 to produce a snap-on effect, so that the plug-in 4 can be stably present in the positioning groove 11 without release.

[0022] Heat dissipation fins 6 are provided on the back of the mounting shell 1. The heat dissipation fins 6 are additionally provided on the premise that the mounting shell 1 already has a plurality of heat dissipation holes, so that the heat generated by the components installed inside the mounting shell 1 is transferred to the heat dissipation cavity through the heat dissipation fins 6 and then circulated to the outside atmosphere, thereby improving the heat dissipation efficiency.

[0023] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A soft starter that is easy to assemble and disassemble, comprising a mounting shell (1) and a mounting cover (2) covering the mounting shell (1), characterized in that: Both side panels of the mounting shell (1) are provided with positioning grooves (11), and there are at least two positioning grooves (11) on each side, and part of the side panels of the mounting shell (1) can be used as the plug-in structure (3) through the positioning grooves (11). The inner side walls of the two side panels of the mounting cover (2) are provided with fixing arms (21) that match the number and position of the positioning grooves (11). The fixing arms (21) extend to the outside of the mounting cover (2), and a plug-in (4) placed in the positioning groove (11) is provided on the end portion located outside. The plug-in (4) is provided with a slot (41) that can be plugged into and matched with the plug-in structure (3), and the tightness generated by the plug-in is limited by the size of the slot (41).

2. The soft starter that is easy to disassemble and assemble according to claim 1 is characterized in that: The slot (41) is divided into a sliding portion (41-a) and a locking portion (41-b) along the assembly guide, the plugged structure (3) and the sliding portion (41-a) are clearance-fitted, and the locking portion (41-b) is interference-fitted.

3. The soft starter that is easy to disassemble and assemble according to claim 2 is characterized in that: The fitting clearance between the slot (41) and the plugged structure (3) gradually decreases along the assembly guide.

4. The soft starter that is easy to disassemble and assemble according to claim 1 is characterized in that: The positioning groove (11) has an assembly base surface (11-a) and a stop base surface (11-b) located on both sides of the plug-in (4); the assembly base surface (11-a) is provided with a stop member (5) that can abut against the plug-in (4), so that the plug-in (4) is pressed by the stop member (5) so that the plug-in (4) remains in contact with the stop base surface (11-b).

5. The soft starter that is easy to disassemble and assemble according to claim 4 is characterized in that: The stop member (5) has a guide base surface (51) opposite to the assembly base surface (11-a), and the guide base surface (51) has a slope that tilts outward from top to bottom, so that the width of the stop member (5) gradually widens from top to bottom through the slope, and the distance formed between the part of the stop member (5) with the maximum width and the stop base surface (11-b) is smaller than the width of the plug-in (4).

6. The soft starter that is easy to disassemble and assemble according to claim 1, characterized in that: The back of the mounting shell (1) is provided with heat dissipation fins (6).

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