CN219529345U - Small household ventilator with power cord - Google Patents
Small household ventilator with power cord Download PDFInfo
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- CN219529345U CN219529345U CN202223610638.6U CN202223610638U CN219529345U CN 219529345 U CN219529345 U CN 219529345U CN 202223610638 U CN202223610638 U CN 202223610638U CN 219529345 U CN219529345 U CN 219529345U
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- power cord
- frame
- pressing sheet
- wire
- wire pressing
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Abstract
A small household ventilator provided with a power cord comprises a frame, the power cord and a wire pressing sheet; the wire pressing sheet is connected with the frame, and one section of the power cord is clamped between the wire pressing sheet and the frame; the method is characterized in that: the line ball piece is connected for buckle with the connection of frame. The design can meet the clamping requirement of the national standard GB4706.27 chapter 25 on the fixing of the power cord, and the purpose of clamping the power cord can be easily realized by completely manual operation without using a pneumatic or electric tool because no screw fixing is needed, so that the production efficiency is obviously improved and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to a small household ventilator provided with a power cord, in particular to a fixing structure of the power cord, and IPC classification can belong to F04D 29/00.
Background
The household ventilator provided with the power cord meets the requirement of the national mandatory standard GB4706.27, the special requirement for safety fans of household and similar electric appliances, chapter 25, on the fixing of the power cord. The conventional design of the fixing has problems of convenience of assembly and cost, and the present inventors have been working on improvement thereof.
For terms and general knowledge, reference is made to the national standard GB/T14806, domestic and similar use exchange ventilator and its speed regulator, ventilator (first edition of Beijing, 9 month of mechanical Industrial Press 1981), mechanical engineering handbook and Motor engineering handbook (1 st edition of mechanical Industrial Press 1978-1983 and 2 nd edition 1997), unless indicated in the present description.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the utility model provides a set up small-size domestic scavenger fan of power cord, its fixed knot of power cord constructs and compares prior art and can improve production efficiency and reduce manufacturing cost.
The technical scheme of the utility model is as follows: a small household ventilator provided with a power cord comprises a frame, the power cord and a wire pressing sheet; the wire pressing sheet is connected with the frame, and one section of the power cord is clamped between the wire pressing sheet and the frame; the method is characterized in that: the line ball piece is connected for buckle with the connection of frame.
Research shows that the small household ventilator has small power, light weight and belongs to a fixed installation type appliance, the used power cord has smaller specification, for the connection of the line pressing sheet and the frame, the traditional screw connection is replaced by the buckle connection, the clamping requirement of GB4706.27 chapter 25 on the power cord fixation can be completely met, and the aim of clamping the power cord can be easily realized by completely manual operation without using a pneumatic or electric tool because no screw fixation is needed, thereby remarkably improving the production efficiency and reducing the manufacturing cost.
Typical designs of the snap connection of the wire clip and the frame are:
the stand is provided with buckling ribs protruding from the left side and the right side of one section of the power cord;
and the line pressing sheet extends out of the clamping hook towards the buckling rib.
The device belongs to the most concise and economical design, and is very convenient to process and use.
It can be further designed that:
1) The buckling ribs and the clamping hooks are respectively provided with an inclined plane for guiding the buckle along the pressing direction. The inclined planes are respectively in a certain angle, and when the wire pressing sheets are mutually attached up and down during assembly, under the action of buckling operation force, the buckles of the wire pressing sheets can easily slide into buckling ribs on the plane of the ventilator frame body along the inclined planes, so that the assembly labor intensity is reduced;
2) The part of the frame or/and the line pressing sheet pressed by the power cord is shaped into a tooth form along the axis direction of the power cord. For the same clamping force, the tooth shape is beneficial to increasing the anti-loosening effect of clamping the power cord;
3) The stand or/and the line pressing sheet are tightly close to the left side and the right side of the pressing part of the power cord and are convexly clamped against the limit ribs of the power cord. The limiting ribs limit the transverse freedom degree of the line pressing sheet, and are favorable for positioning when the power cord is clamped;
4) When the specification of the household ventilator is 100-300 mm and the outer diameter of the power cord is 5.5-6.5 mm, the corresponding dimensions of the line pressing sheet and the rack are as follows: the thickness (A) of the upper line pressing teeth is 2.5-2.7mm; the thickness (B) of the matrix of the line pressing sheet is 2.5-2.7mm; after the line pressing sheet is buckled on the frame, the distance (C) between the upper line pressing teeth and the lower line pressing teeth is 2.5-3mm. The clamping device belongs to data which is most favorable for clamping operation and ensuring clamping effect and is obtained by adjusting a large number of experiments aiming at specific products.
Drawings
Fig. 1 is a schematic front view of a ventilator according to an embodiment of the present utility model with a panel 4 removed.
Fig. 2 is a schematic front view of the ventilation fan according to the embodiment of the present utility model after the ventilation fan is mounted on the upper panel 4.
Fig. 3 is a bottom view of a ventilator according to an embodiment of the utility model.
Fig. 4 is a schematic front view of a portion of a cord clamping structure of a ventilator according to an embodiment of the present utility model.
FIG. 5 is a schematic cross-sectional view of A-A in FIG. 4.
Fig. 6 is a schematic diagram of an axial measurement of a wire clip of the ventilator according to an embodiment of the present utility model.
Fig. 7 is a front view and a corresponding cross-sectional schematic diagram of a wire clip of a ventilator according to an embodiment of the present utility model.
Fig. 8 is a schematic plan view of a ventilator frame and a wire clip according to an embodiment of the present utility model.
Fig. 9 is a schematic cross-sectional view of D-D in the frame wafer of fig. 8.
Fig. 10 is a schematic cross-sectional view of E-E in the frame wire clip of fig. 8.
Fig. 11 is a schematic plan view illustrating the cooperation of the ventilator frame and the wire pressing sheet according to the embodiment of the present utility model.
Fig. 12 is a schematic diagram of the fitting dimensions of the ventilator frame and the wire pressing sheet according to the embodiment of the utility model.
The marks in the figure:
1-a wire pressing sheet; 101-clamping hooks; 102-cable limiting ribs; 103-upper wire pressing teeth; 104-moment arm; 105-guiding slope; 2-a power cord; 3-a ventilator stand; 301-pressing line teeth; 302-snap guide ramp; 303-line pressing piece limiting elevation; 304-buckling ribs; 4-panel.
Detailed Description
The basic structure of the fixing structure of the power cord of the small household ventilator according to the embodiment of the utility model is shown in fig. 1-12, and is an improvement of the design of the prior patent CN217582557U, namely a small household ventilator with a power cord. The basic design of the ventilator described in CN217582557U includes a frame 3 for supporting the air duct, a motor supported in the air duct, an axial flow impeller mounted on the motor shaft and driven.
The embodiment of the utility model relates to an improvement of the utility model for CN217582557U, mainly comprising a structure for connecting a wire pressing sheet of a power cord pressed on a rack with the rack, and the structure comprises:
the line pressing sheet 1 and the ventilator frame 3 are formed by injection molding of engineering plastics (such as PP) with relatively good heat-deformation performance, and the line pressing sheet 1 is arranged on the rear plane of the frame 3 to form a fixing structure of the power cord 2;
as shown in fig. 5, 7 and 9, the rack 3 is provided with buckling ribs 304 protruding from the left and right sides of the clamped section of the power cord 2; the wire pressing sheet 1 extends a clamping hook 101 from the left side and the right side of the clamped section of the power cord 2 towards the buckling rib 304. The buckle 101 in the line pressing sheet 1 is assembled with the buckling rib 304 on the ventilator frame 3 to form a buckle connection for clamping the power cord 2;
as shown in fig. 5, 7 and 9, a semi-closed wire clamping space for the power cord is formed among the upper wire clamping teeth 103, the wire limiting ribs 102 and the lower wire clamping teeth 301 on the ventilator frame 3 in the wire clamping sheet 1;
as shown in fig. 7 and 9, the buckle 101 in the wire clip 1 is provided with a guiding slope 105, and the buckling rib 304 on the ventilator frame 3 is provided with a buckle guiding slope 302. These guide slopes appear as slopes that guide the buckle in the direction of buckle pressing;
as shown in fig. 11, a ventilator frame 3 assembled and matched with the wire pressing sheet 1 is provided with a wire pressing sheet limiting vertical face 303.
The embodiment of the utility model is applicable to the household ventilator with the specification of 100-300 mm and the outer diameter of the power cord of 5.5-6.5 mm, and the power cord clamping structure has the following dimensions as shown in figure 12:
A. the thickness of the upper pressing line tooth is 2.5-2.7mm;
B. the thickness of the matrix wall of the line pressing sheet 1 is 2.5-2.7mm;
C. the wire pressing size (the distance between the upper wire pressing teeth 103 and the lower wire pressing teeth 301 after the wire pressing sheet 1 is buckled with the frame 3) is 2.5-3mm.
The power cord of the household ventilator can obtain the most proper fixing effect according to the size, has lower cost and can meet the requirement of GB4706.27 chapter 25 on the fixing of the power cord.
The embodiment of the utility model discloses a clamping method for a household ventilator power cord, which comprises the following steps:
1. placing the clamping section of the power cord 2 on the two lower wire pressing teeth 301 of the ventilator frame 3 shown in fig. 8;
2. placing the wire pressing sheet 1 on the clamped section of the power cord 2, and adjusting the position of the clamped section of the power cord 2 to enable the clamped section of the power cord 2 to be positioned between two cable limiting ribs 102 in the wire pressing sheet 1; simultaneously, the position of the wire pressing sheet 1 is adjusted to be positioned in the limiting vertical faces 303 of the wire pressing sheets at the two sides in the ventilator frame 3;
3. and applying a certain pressure to the line pressing sheet 1 with the adjusted position by using a rigid strip tool, so that the force arms 104 on two sides in the line pressing sheet 1, the guide slope 105 forming a cutting angle with each other and the buckle guide slope 302 on the ventilator frame 3 are deformed, the buckle 101 in the line pressing sheet 1 slides into the buckling rib 304 in the ventilator frame 3 to form interlocking, and the clamped section of the power cord 2 is clamped.
The present embodiment may have the following design modifications:
1. the specific design of the buckle connection of the line ball piece and the frame can be changed into reverse setting:
the left side and the right side of the pressed section of the power cord of the wire pressing sheet are provided with convex buckling ribs;
the rack extends out of the clamping hooks towards the buckling ribs at the left side and the right side of the clamped section of the power cord.
2. When the specification of the ventilator is particularly small, only one of the upper wire pressing teeth 103 in the wire pressing sheet and the lower wire pressing teeth 301 in the ventilator frame 3 may be in a tooth structure.
3. The upper wire pressing teeth 103 in the wire pressing sheet and the lower wire pressing teeth 301 in the ventilator frame 3 can be in a plurality of parallel structures.
Claims (6)
1. A small household ventilator provided with a power cord comprises a frame (3), a power cord (2) and a wire pressing sheet (1); the wire pressing sheet (1) is connected with the stand (3), and one section of the power cord (2) is clamped between the wire pressing sheet (1) and the stand (3); the method is characterized in that: the connection between the line pressing sheet (1) and the frame (3) is buckle connection.
2. A small household ventilator provided with a power cord according to claim 1, characterized in that the snap connection of the wire clip (1) to the frame (3) is specifically designed as:
the left side and the right side of the clamped section of the power cord (2) of the stand (3) are provided with convex buckling ribs (304);
-the wire pressing sheet (1) extends out of the clamping hook (101) towards the buckling rib (304).
3. A small household ventilator provided with a power cord according to claim 2, characterized in that both the snap-on rib (304) and the hook (101) are provided with a ramp (302) guiding the snap-on in the direction of the pressing.
4. A small household ventilator provided with a power cord according to claim 1, characterized in that the part of the frame (3) or/and the wire clip (1) pressed by the power cord (2) is shaped as an upper wire-pressing tooth (103) and a lower wire-pressing tooth (301) with tooth shapes along the axis direction of the power cord.
5. A small household ventilator with a power cord according to claim 1, characterized in that the frame (3) or/and the wire pressing sheet (1) are tightly abutted against the limit ribs (102) of the power cord (2) by the protrusions on the left and right sides of the clamped section of the power cord (2).
6. A small household ventilator provided with a cord according to claim 3, characterized in that said dimensions of said blade (1) and frame (3) are, when said household ventilator is 100-300 mm and said cord has an external diameter of 5.5-6.5 mm:
the thickness (A) of the upper line pressing teeth is 2.5-2.7mm;
the wall thickness (B) of the matrix of the line pressing sheet (1) is 2.5-2.7mm;
after the wire pressing sheet (1) is buckled with the frame (3), the distance (C) between the upper wire pressing tooth (103) and the lower wire pressing tooth (301) is 2.5-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223610638.6U CN219529345U (en) | 2022-12-30 | 2022-12-30 | Small household ventilator with power cord |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223610638.6U CN219529345U (en) | 2022-12-30 | 2022-12-30 | Small household ventilator with power cord |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529345U true CN219529345U (en) | 2023-08-15 |
Family
ID=87632452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223610638.6U Active CN219529345U (en) | 2022-12-30 | 2022-12-30 | Small household ventilator with power cord |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529345U (en) |
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2022
- 2022-12-30 CN CN202223610638.6U patent/CN219529345U/en active Active
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