CN220413707U

CN220413707U - Electric cabinet of sewing machine

Info

Publication number: CN220413707U
Application number: CN202320691701.9U
Authority: CN
Inventors: 周善足
Original assignee: Taizhou Supu Electromechanical Co ltd
Current assignee: Taizhou Supu Electromechanical Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2024-01-30
Anticipated expiration: 2033-03-31

Abstract

The utility model relates to the technical field of sewing machine accessories, in particular to an electric cabinet with a sewing machine. Including casing and with casing assorted apron, be provided with main circuit board and a plurality of MOS pipe in the casing, MOS pipe and main circuit board are connected, its characterized in that: the MOS tube is connected with a heat dissipation module, a heat dissipation groove is formed in the shell, the heat dissipation module is arranged in the heat dissipation groove, the heat dissipation groove is provided with an air vent, and the size of the air vent is that the bottom surface of the heat dissipation module is retracted inwards by 8-30 mm; the heat dissipation groove is internally provided with a plurality of fixing ribs and limiting edges, the cover plate is provided with limiting parts corresponding to the positions of the heat dissipation groove, and after the heat dissipation module is placed in the heat dissipation groove, the cover plate is closed to fix the heat dissipation module in the heat dissipation groove.

Description

Electric cabinet of sewing machine

Technical Field

The utility model relates to the technical field of sewing machine accessories, in particular to an electric cabinet with a sewing machine.

Background

The sewing machine helps people to conveniently sew clothes, and various sewing machines cannot be layered in order to meet the sewing requirements of different clothes. With the progress of the times, the current sewing machine gets rid of the mode of mechanical control and the past electric sewing machine controlled by an electric cabinet gradually becomes the main stream on the market. The servo motor of the sewing machine is controlled by a plurality of electronic elements arranged in the electric cabinet, so that the control of the sewing machine is realized.

The prior art has the following defects:

when the existing electric cabinet is used, a large amount of heat can be generated by the MOS tube inside the electric cabinet, so that the electric cabinet has a large potential safety hazard. The common electric cabinet is usually arranged below the table top of the sewing machine, so that the volume of the electric cabinet is not too large, and the problem of improving the utilization rate of the internal space of the electric cabinet and improving the heat dissipation effect in a compact space is an important problem.

Disclosure of Invention

The utility model aims to provide the electric cabinet of the sewing machine, which has low cost, convenient manufacture and good heat dissipation effect.

The aim of the utility model is realized in the following way:

an electric cabinet of a sewing machine comprises a shell and a cover plate matched with the shell, wherein a main circuit board and a plurality of MOS (metal oxide semiconductor) tubes are arranged in the shell, and the MOS tubes are connected with the main circuit board;

the MOS tube is connected with a heat dissipation module, a heat dissipation groove is formed in the shell, the heat dissipation module is arranged in the heat dissipation groove, the heat dissipation groove is provided with an air vent, and the size of the air vent is that the bottom surface of the heat dissipation module is retracted inwards by 8-30 mm;

the heat dissipation groove is internally provided with a plurality of fixing ribs and limiting edges, the cover plate is provided with limiting parts corresponding to the positions of the heat dissipation groove, and after the heat dissipation module is placed in the heat dissipation groove, the cover plate is closed to fix the heat dissipation module in the heat dissipation groove.

Preferably, the heat dissipation module is in threaded connection with the main circuit board, and an insulation board is arranged between the heat dissipation module and the main circuit board.

Preferably, the heat dissipation module is a heat dissipation base, a plurality of heat dissipation fins are formed on the heat dissipation module, the heat dissipation fins face the ventilation holes, and uniform grids are formed among the heat dissipation fins.

Preferably, the heat dissipation module is made of aluminum.

Preferably, a secondary circuit board is arranged in the shell, and the secondary circuit board is connected with the primary circuit board;

and a control board is arranged on one outward side surface of the shell, and the position of the control board corresponds to that of the secondary circuit board.

Preferably, the shell is provided with a warning label on a side surface adjacent to the control panel, and the warning label is horizontal to the control panel.

Preferably, one side of the main circuit board is connected with a main interface, and the main interface is arranged above the control board.

Preferably, the main circuit board is further connected with a plurality of signal interfaces, and the signal interfaces are arranged at one end opposite to the main interfaces.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

1. the heat dissipation groove arranged in the shell is simple in structure and low in manufacturing cost, and the circuit board with the heat dissipation module is convenient to install in the shell. When the cover plate is closed, the heat dissipation module can be fixed in the heat dissipation groove.

2. The part of the heat radiation module extending out of the circuit board is smaller, so that the structure inside the electric cabinet is more compact, and the volume of the electric cabinet is reduced.

Drawings

Fig. 1 is an exploded view of the present utility model.

Fig. 2 is a structural view of the inside of the case of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a cross-sectional view taken along A-A in fig. 3.

Fig. 5 is a schematic view of the housing of the present utility model.

Reference numerals: 1. a housing; 11. a heat sink; 12. an air vent; 13. a fixing rib; 14. limit edges; 2. a cover plate; 21. a limit part;

3. a main circuit board; 31. a heat insulating plate; 32. a MOS tube; 33. a main interface; 34. a signal interface;

4. a heat dissipation module; 41. a heat radiation fin; 42. a grid;

5. a secondary circuit board;

6. a control board;

7. and (5) warning label.

Detailed Description

The following are specific embodiments of the present utility model, and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

An electric cabinet of a sewing machine as shown in fig. 1 to 4 comprises a housing 1 and a cover plate 2 matched with the housing 1, wherein the cover plate 2 can be connected with the housing 1 and enables the housing 1 to be closed. The shell 1 is internally provided with a main circuit board 3 and a plurality of MOS tubes 32, the MOS tubes 32 are connected with the main circuit board 3, and the MOS tubes are used for controlling the output of the servo motor. However, the MOS tube generates a large amount of heat during use, and if the heat is excessively accumulated, the case 1 may melt or the circuit may be fused, and a fire may be caused when the heat is severe.

The MOS tube 32 is connected with the heat radiation module 4, and one side surface of the MOS tube 32 is clung to the heat radiation module 4, so that heat generated by the MOS tube 32 can be directly and rapidly transferred to the heat radiation module 4, and the heat generated by the MOS tube 32 can be effectively discharged to the outside of the shell 1 through the heat radiation module 4. The shell 1 is internally provided with a heat dissipation groove 11, the heat dissipation groove 11 is opened towards one side of the cover plate 2, the heat dissipation module 4 is arranged in the heat dissipation groove 11, and after the heat dissipation module 4 is placed in the heat dissipation groove 11, convection heat transfer can be generated with gas, so that heat on the heat dissipation module 4 is transferred into the air. The heat dissipation groove 11 is provided with the air vent hole 12, and the air vent hole 12 can ensure that the hot air flow which is in the heat dissipation groove 11 and completes heat exchange with the heat dissipation module 4 is directly discharged into the atmosphere, so that the heat dissipation process is continuous and stable.

The size of the ventilation hole 12 is that the bottom surface of the heat radiation module 4 is retracted to 8 mm-30 mm, so that the heat radiation module 4 can be supported without being separated from the ventilation hole 12.

A plurality of fixing ribs 13 and limiting edges 14 are formed in the heat dissipation groove 11, and limiting parts 2 are formed at positions of the cover plate 2 corresponding to the heat dissipation groove 11. When the electric cabinet is assembled, the radiating module 4 can be pushed into the radiating groove 11 from one side of the opening of the radiating groove 11, and the occurrence of deformation of the radiating module 4 caused by collision between the radiating module 4 and other structures can be avoided. Meanwhile, the heat radiation module 4 is pushed into the heat radiation groove 11, so that uniform contact between the bottom surface of the shell 1 and the heat radiation module 4 can be ensured. Since the ventilation hole 12 is provided in the bottom surface of the housing 1, the structural strength of the bottom surface of the housing 1 is not high, and if the heat radiation module 4 is placed on the bottom surface of the housing 1, the bottom surface of the housing 1 is likely to be broken when the bottom surface of the housing 1 collides with the heat radiation module 4.

The limiting part 14 in the heat dissipation groove 11 can limit the position of the heat dissipation module 4 in the heat dissipation groove 11, so that the overheated heat dissipation module 4 is too close to one side surface of the shell 1 to cause the melting deformation of the shell 1 when heat dissipation is avoided. The fixing ribs 13 can strengthen the structural strength of the heat dissipation groove 11, so that the heat dissipation groove 11 cannot deform when the heat dissipation module 4 is placed in the heat dissipation groove 11, and the ventilation holes 12 can uniformly contact with the heat dissipation module 4 and support the heat dissipation module 4. The fixing rib can also play a role in limiting the heat dissipation module 14, so that the heat dissipation module 14 is prevented from being too close to one side surface of the shell 1.

Because the spacing portion 21 is formed at the position corresponding to the heat dissipation groove 11 on the cover plate 2, when the cover plate 2 is closed, the spacing portion 21 contacts with the heat dissipation module 4, and cooperates with the spacing edge 14 and the reinforcing rib 13 to fix the heat dissipation module 4 in the heat dissipation groove 11, so that the heat dissipation module 4 can be clamped and fixed in the heat dissipation groove 11. The limiting portion 21 can also ensure that the heat dissipation module 4 is not close to the cover plate 2, so that the cover plate is deformed by the overheated heat dissipation module 4 when heat dissipation is avoided.

As shown in fig. 1 to 4, the heat dissipation module 4 is screwed to the main circuit board 3, and an insulating plate 31 is provided between the heat dissipation module 4 and the main circuit board 3.

Since the electric cabinet is usually arranged under the table top of the sewing machine, if the scalding heat dissipation module 4 falls from the electric cabinet, operators are extremely easy to scald. If the cable is laid under the table top of the sewing machine, the cable is easy to overheat to cause fire. Therefore, the heat dissipation module 4 is screwed with the main circuit board, so that the position relationship between the MOS tube 32 and the heat dissipation module 4 is conveniently determined, and the heat dissipation effect is improved. The heat dissipation module 4 can be further fixed, the weight required to be born by the bottom of the shell 1 is reduced, and the heat dissipation module 4 is prevented from falling off from the heat dissipation groove 11.

As shown in fig. 1-4, the heat dissipation module 4 is a heat dissipation base, a plurality of heat dissipation fins 41 are formed on the heat dissipation module 4, the heat dissipation fins 41 face the ventilation holes 12, and a uniform grid 42 is formed between the heat dissipation fins 41. The air in the grid 42 is circulated, and the contact between the air in the grid 42 and the heat radiation fins 41 is more sufficient, so that the heat convection efficiency of the heat radiation module 4 can be improved to the maximum.

As a preferred embodiment, the heat dissipation module 4 is made of aluminum, which has good corrosion resistance and thermal conductivity, and can well perform heat dissipation work and prolong the service life. Meanwhile, aluminum is light and convenient, and is easy to fix in the heat dissipation groove 11, so that the weight required to be borne by the bottom surface of the shell is reduced. In addition, the aluminum has low price, good plasticity and reduced manufacturing cost.

As shown in fig. 1 to 5, a sub-circuit board 5 is provided in the housing 1, and the sub-circuit board 5 is connected to the main circuit board 3.

A control board 6 is provided on the outward facing side surface of the housing 1, and the position of the control board 6 corresponds to the sub-circuit board 5. The control panel 6 is provided with various buttons, and a user can conveniently input instructions through the control panel 6. The instructions input by the user are processed by the secondary circuit board 5 and then transmitted to the main circuit board 3, so that the working state of the sewing machine is controlled by the user through the control board 6.

As shown in fig. 1 to 5, the housing 1 is provided with a warning label 7 on a side surface adjacent to the control board 6, the warning label 7 being horizontal to the control board 6, and the warning label 7 can be easily seen when a user operates the control board 6, thereby achieving the purpose of reminding the user.

Since in actual production and life the electric cabinet of the sewing machine is usually arranged under the table top of the sewing machine, the user is usually sitting in front of the sewing table during operation. And the user cannot completely see the upper portion of the housing 1 of the electric cabinet, depending on the user's position. Therefore, the operation panel 6 and the warning label 7 are arranged at the lower part of the shell 1, so that the warning label 7 is more convenient for a user to see in actual operation.

As shown in fig. 1 to 5, a main interface 33 is connected to one side of the main circuit board 3, and the main interface 33 is provided above the control board 6. The main interface 33 is used for controlling the switch of the main circuit board 3, and the main interface 33 and the control board 6 are arranged on the same side, so that a user can conveniently regulate and control the electric cabinet.

As shown in fig. 1-5, the main circuit board 3 is further connected with a plurality of signal interfaces 34, and the signal interfaces 34 are disposed at an end opposite to the main interface 33. By connecting the signal interface 34 to each part of the electric sewing machine, the operating state of the electric sewing machine can be controlled by the electric control box.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides an electric cabinet of sewing machine, includes casing (1) and with casing (1) assorted apron (2), be provided with main circuit board (3) and a plurality of MOS pipe (32) in casing (1), MOS pipe (32) with main circuit board (3) are connected, its characterized in that:

the MOS tube (32) is connected with a heat dissipation module (4), a heat dissipation groove (11) is formed in the shell (1), the heat dissipation module (4) is arranged in the heat dissipation groove (11), the heat dissipation groove (11) is provided with an air vent (12), and the size of the air vent (12) is that the bottom surface of the heat dissipation module (4) is retracted inwards by 8-30 mm;

the heat dissipation device is characterized in that a plurality of fixing ribs (13) and limiting edges (14) are formed in the heat dissipation groove (11), limiting portions (21) are formed in the positions, corresponding to the heat dissipation groove (11), of the cover plate (2), and after the heat dissipation module (4) is placed in the heat dissipation groove (11), the cover plate (2) is closed, so that the heat dissipation module (4) can be fixed in the heat dissipation groove (11).

2. An electric cabinet for a sewing machine as claimed in claim 1, wherein: the heat dissipation module (4) is in threaded connection with the main circuit board (3), and an insulating plate (31) is arranged between the heat dissipation module (4) and the main circuit board (3).

3. An electric cabinet for a sewing machine according to claim 1 or 2, characterized in that: the heat radiation module (4) is a heat radiation base, a plurality of heat radiation fins (41) are formed on the heat radiation module (4), the heat radiation fins (41) face the ventilation holes (12), and uniform grids (42) are formed among the heat radiation fins (41).

4. An electric cabinet for a sewing machine as claimed in claim 3, wherein: the heat dissipation module (4) is made of aluminum.

5. An electric cabinet for a sewing machine according to claim 1 or 4, wherein: a secondary circuit board (5) is arranged in the shell (1), and the secondary circuit board (5) is connected with the main circuit board (3);

a control board (6) is arranged on one outward side surface of the shell (1), and the position of the control board (6) corresponds to the position of the secondary circuit board (5).

6. An electric cabinet for a sewing machine as defined in claim 5, wherein: the shell (1) is provided with a warning label (7) on one side surface adjacent to the control panel (6), and the warning label (7) is horizontal to the control panel (6).

7. An electric cabinet for a sewing machine as defined in claim 5, wherein: one side of the main circuit board (3) is connected with a main interface (33), and the main interface (33) is arranged above the control board (6).

8. The electric cabinet of a sewing machine of claim 7, wherein: the main circuit board (3) is also connected with a plurality of signal interfaces (34), and the signal interfaces (34) are arranged at one end opposite to the main interfaces (33).