Electric control dustproof structure of sewing machine and sewing machine

Abstract

The utility model provides an electric control dustproof structure of a sewing machine and the sewing machine, and belongs to the technical field of sewing equipment. The electric control comprises a housing, a bottom plate is installed on the housing, a circuit board is installed on the bottom plate, the electric control dustproof structure comprises a dustproof cover, the dustproof cover is fixed to the bottom plate, the dustproof cover is provided with an inner cavity, the inner cavity is provided with a first opening, the bottom plate covers the first opening, a boss is fixed to the bottom plate, and the edge of the first opening abuts against the bottom plate; each cavity wall of the inner cavity abuts against one corresponding outer side face of the boss. According to the electric control dustproof structure, the dustproof cover and the bottom plate are connected more tightly, the dust passing path is prolonged, dust is well prevented from entering the inner cavity of the dustproof cover, and the electric control dustproof structure has a good dustproof effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing equipment and relates to an electric control dustproof structure of a sewing machine and the sewing machine. Background Art

[0002] Most of the dustproof structures in the prior art are combined with the cover to form an open type, while some are closed types, where an independent dustproof cover is assembled with an electric control cover.

[0003] Patent document with application number 201320004297.X discloses a servo controller dustproof structure, including a servo controller housing with an opening on one side and a circuit board. The circuit board is arranged in the housing, and it also includes an insulating dust cover. The insulating dust cover has a concave and convex surface matching the electrical components on the circuit board. The insulating dust cover is arranged in the housing and its shape matches the housing. The insulating dust cover covers the surface of the circuit board.

[0004] The above-mentioned dust-proof structure of the servo controller can play a dust-proof role. However, in order to adapt to different electronic controls, those skilled in the art hope to propose more dust-proof structures with different structures. Summary of the invention

[0005] The utility model aims at the above problems existing in the prior art and provides an electric control dustproof structure of a sewing machine. The technical problem to be solved by the utility model is: how to improve the dustproof effect.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A dust-proof structure for an electric control of a sewing machine, the electric control comprising a cover shell, a base plate mounted on the cover shell, a circuit board mounted on the base plate, characterized in that the dust-proof structure for the electric control comprises a dust cover, the dust cover is fixed on the base plate, the dust cover has an inner cavity, the inner cavity has an opening one, the base plate covers the opening one, a boss is fixed on the base plate, the edge of the opening one abuts on the base plate, and each cavity wall of the inner cavity abuts on a corresponding outer side surface of the boss.

[0008] In the electric control dustproof structure, the dust cover is fixed on the bottom plate, the bottom plate covers the opening 1 of the dust cover, the circuit board is located in the inner cavity of the dust cover, and the dust cover and the bottom plate play a role in dustproofing and protecting the circuit board. The edge of the opening 1 of the dust cover abuts against the board, and each cavity wall of the inner cavity of the dust cover abuts against a corresponding outer surface of the boss. This structure makes the connection between the dust cover and the bottom plate tighter, prolongs the path for dust to pass through, effectively prevents dust from entering the inner cavity of the dust cover, and has a better dustproof effect.

[0009] In the above-mentioned electrically controlled dustproof structure of a sewing machine, the bottom of the bottom plate extends out from the bottom of the dustproof cover.

[0010] After the bottom plate covers the opening, the bottom of the bottom plate extends out from the bottom of the dust cover, and the bottom of the bottom plate and the bottom of the dust cover are staggered, and the two are not on the same plane. This structure can better prevent dust from entering the inner cavity and bring better dustproof effect.

[0011] In the above-mentioned electrically controlled dustproof structure of a sewing machine, one side portion of the bottom plate extends out from the side portion of the dust cover or two side portions of the bottom plate extend out from corresponding side portions of the dust cover respectively.

[0012] As a different embodiment, one side portion of the bottom plate may extend from the side portion of the dust cover, or two side portions of the bottom plate may extend from corresponding side portions of the dust cover respectively.

[0013] After the bottom plate covers the opening, the side of the bottom plate extends out from the side of the dust cover, and the two sides are staggered and not on the same plane. This structure can better prevent dust from entering the inner cavity, bringing better dustproof effect.

[0014] In the above-mentioned electrically controlled dustproof structure of a sewing machine, the opening one is located on the side of the dust cover, the top of the dust cover has an opening two, the bottom of the cover shell covers a part of the opening two, and the other part of the opening two is open.

[0015] The dustproof structure of the electric control is semi-open, which can adapt to larger electric controls. When the size of the circuit board and the cover of the electric control do not match, for example, the circuit board is too large, the circuit board can extend from the opening of the second opening without affecting the assembly.

[0016] In the above-mentioned electrically controlled dustproof structure of a sewing machine, the dust cover is detachably fixed to the base plate, and the dust cover is locked on the base plate by one or more screws.

[0017] The dust cover is fixed to the bottom plate by screw locking, and the two are detachably fixed. This structure is easy to disassemble and assemble, and the connection is firm.

[0018] In the above-mentioned electrically controlled dustproof structure of a sewing machine, the bottom of the cover shell has one or more clamping strips, and the outer end of the clamping strips abuts against the outer wall of the dust cover and the two are tightly matched.

[0019] The cover shell is fixed on the clamping strip, and the clamping strip and the dust cover are tightly matched. This structure has a better fixing effect on the dust cover and greatly improves the stability of the dust cover after installation.

[0020] The number of the clamping strips may be one or more than two. The more clamping strips there are, the more stable the dust cover will be after installation.

[0021] In the above-mentioned electrically controlled dustproof structure of a sewing machine, there are more than two screws threadedly connected to the middle and lower part of the dust cover, and there are more than two clamping strips abutting against the outer wall of the middle and upper part of the dust cover.

[0022] The middle and lower part refers to the part below the middle part of the dust cover, and the middle and upper part refers to the part above the middle part of the dust cover. There are more than two clips and more than two screws. The clips and screws are respectively located at the upper or lower part of the dust cover, and the two together fix the dust cover to better improve the stability of the installation.

[0023] The utility model also provides a sewing machine, which comprises any one of the above-mentioned electric-controlled dust-proof structures.

[0024] Compared with the prior art, the advantages of the utility model are as follows:

[0025] 1. The dust cover and the bottom plate of the electric control dustproof structure are more tightly connected, which prolongs the path for dust to pass through, effectively preventing dust from entering the inner cavity of the dust cover, and has a good dustproof effect.

[0026] 2. After the bottom plate of the electric control dustproof structure covers the opening, the bottom of the bottom plate extends from the bottom of the dust cover, and the side of the bottom plate extends from the side of the dust cover. This structure can better prevent dust from entering the inner cavity and bring better dustproof effect.

[0027] 3. The dustproof structure of this electric control is semi-open, which can adapt to larger electric controls and will not affect assembly even if the sizes of the circuit board and the cover of the electric control do not match. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the electric control dustproof structure;

[0029] Figure 2 It is a schematic diagram of the structure in which the circuit board and the base plate are installed on the cover;

[0030] Figure 3 It is a schematic diagram of the structure of the dust cover;

[0031] Figure 4 It is a structural diagram of the electric-controlled dust-proof structure from another perspective;

[0032] Figure 5 It is a cross-sectional view of the electronically controlled dust-proof structure.

[0033] In the figure: 1 cover, 2 bottom plate, 3 circuit board, 4 dust cover, 5 inner cavity, 6 opening one, 7 opening two, 8 screws, 9 clamping strips, 10 bosses. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0035] like Figure 1-3 As shown, the electric control includes a cover shell 1, a base plate 2 is installed on the cover shell 1, a circuit board 3 is installed on the base plate 2, and the dustproof structure of the electric control includes a dust cover 4, the dust cover 4 is fixed on the base plate 2, the dust cover 4 has an inner cavity 5, the inner cavity 5 has an opening 6, the base plate 2 covers the opening 6, a boss 10 is fixed on the base plate 2, the edge of the opening 6 abuts on the base plate 2, and each cavity wall of the inner cavity 5 abuts on a corresponding outer side of the boss 10.

[0036] In the electric control dustproof structure, the dust cover 4 is fixed on the bottom plate 2, the bottom plate 2 covers the opening 6 of the dust cover 4, the circuit board 3 is located in the inner cavity 5 of the dust cover 4, and the dust cover 4 and the bottom plate 2 play a dustproof and protective role on the circuit board 3. The edge of the opening 6 of the dust cover 4 abuts on the bottom plate 2, and each cavity wall of the inner cavity 5 of the dust cover 4 abuts on a corresponding outer surface of the boss 10. This structure makes the connection between the dust cover 4 and the bottom plate 2 tighter, prolongs the path for dust to pass through, and effectively prevents dust from entering the inner cavity 5 of the dust cover 4, which has a better dustproof effect.

[0037] like Figure 1 As shown in FIG. 5 , in this embodiment, the bottom of the base plate 2 extends out from the bottom of the dust cover 4.

[0038] After the bottom plate 2 covers the opening 6, the bottom of the bottom plate 2 extends out from the bottom of the dust cover 4, and the bottom of the bottom plate 2 is staggered from the bottom of the dust cover 4, and the two are not on the same plane. This structure can better prevent dust from entering the inner cavity 5, bringing better dustproof effect.

[0039] like Figure 1 As shown, in this embodiment, two side portions of the bottom plate 2 extend out from corresponding side portions of the dust cover 4 respectively.

[0040] As a different embodiment, one side portion of the bottom plate 2 may extend from the side portion of the dust cover 4 , or two side portions of the bottom plate 2 may extend from corresponding side portions of the dust cover 4 , respectively.

[0041] After the bottom plate 2 covers the opening 6, the side of the bottom plate 2 extends out from the side of the dust cover 4, and the sides of the two are staggered and not on the same plane. This structure can better prevent dust from entering the inner cavity 5, bringing better dustproof effect.

[0042] like Figure 3 and 4As shown, in this embodiment, the opening 1 6 is located at the side of the dust cover 4, the top of the dust cover 4 has an opening 2 7, the bottom of the cover shell 1 covers a part of the opening 2 7, and the other part of the opening 2 7 is open.

[0043] The dustproof structure of the electric control is semi-open, which can adapt to larger electric controls. When the size of the circuit board 3 and the cover 1 of the electric control do not match, for example, the size of the circuit board 3 is too large, the circuit board 3 can extend from the opening 7 without affecting the assembly.

[0044] like Figure 1 As shown, in this embodiment, the dust cover 4 is detachably fixed to the base plate 2 , and the dust cover 4 is locked on the base plate 2 by two screws 8 .

[0045] The dust cover 4 is fixed on the bottom plate 2 by screws 8, and the two are detachably fixed. This structure is easy to assemble and disassemble and has a stable connection.

[0046] As other embodiments, the number of screws 8 is one, or more than two.

[0047] like Figure 1 As shown, in this embodiment, the bottom of the housing 1 has two clamping strips 9, and the outer ends of the clamping strips 9 abut against the outer wall of the dust cover 4 and the two are tightly matched.

[0048] The cover shell 1 is fixed on the clamping strip 9, and the clamping strip 9 and the dust cover 4 are tightly matched. This structure has a better fixing effect on the dust cover 4 and greatly improves the stability of the dust cover 4 after installation.

[0049] The number of the clamping strip 9 can be one or more than two. The more clamping strips 9 there are, the more stable the dust cover 4 will be after installation.

[0050] like Figure 1 As shown, in this embodiment, there are two screws 8 which are threadedly connected to the middle and lower part of the dust cover 4 , and there are two clamping strips 9 which are against the outer wall of the middle and upper part of the dust cover 4 .

[0051] The middle and lower part refers to the part below the middle part of the dust cover 4, and the middle and upper part refers to the part above the middle part of the dust cover 4. There can be more than two clips 9 and more than two screws 8. The clips 9 and the screws 8 are respectively located at the upper or lower part of the dust cover 4, and the two together fix the dust cover 4 to better improve the stability of the installation.

[0052] The utility model also provides a sewing machine, which comprises any one of the above-mentioned electric-controlled dust-proof structures.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An electric control dustproof structure for a sewing machine, the electric control comprising a housing (1), a bottom plate (2) being mounted on the housing (1), a circuit board (3) being mounted on the bottom plate (2), characterized in that: The electrically controlled dustproof structure comprises a dust cover (4), wherein the dust cover (4) is fixed on the base plate (2), the dust cover (4) has an inner cavity (5), the inner cavity (5) has an opening (6), the base plate (2) covers the opening (6), a boss (10) is fixed on the base plate (2), the edge of the opening (6) abuts against the base plate (2), and each cavity wall of the inner cavity (5) abuts against a corresponding outer surface of the boss (10).

2. The electric control dustproof structure of a sewing machine according to claim 1, characterized in that: The bottom of the bottom plate (2) extends out from the bottom of the dust cover (4).

3. The electric control dustproof structure of a sewing machine according to claim 1, characterized in that: One side of the bottom plate (2) extends out from a side of the dust cover (4), or two side portions of the bottom plate (2) extend out from corresponding side portions of the dust cover (4).

4. The electrically controlled dustproof structure of a sewing machine according to claim 1, 2 or 3, characterized in that: The first opening (6) is located at the side of the dust cover (4), the top of the dust cover (4) is provided with a second opening (7), the bottom of the cover shell (1) covers a part of the second opening (7), and the other part of the second opening (7) is open.

5. The electrically controlled dustproof structure of a sewing machine according to claim 1, 2 or 3, characterized in that: The dust cover (4) is detachably fixed to the base plate (2), and the dust cover (4) is locked on the base plate (2) by one or more screws (8).

6. The electric control dustproof structure of a sewing machine according to claim 5, characterized in that: The bottom of the housing (1) is provided with one or more clamping strips (9), the outer ends of the clamping strips (9) are pressed against the outer wall of the dust cover (4), and the two are tightly matched.

7. The electric control dustproof structure of a sewing machine according to claim 6, characterized in that: There are more than two screws (8) which are threadedly connected to the middle and lower part of the dust cover (4), and there are more than two clamping strips (9) which are pressed against the outer wall of the middle and upper part of the dust cover (4).

8. A sewing machine, characterized in that: The sewing machine comprises an electrically controlled dustproof structure as described in any one of claims 1-7.

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