Wire fixing structure, household appliances

Abstract

The present invention provides a wire fixing structure and a household appliance. The wire fixing structure comprises: a base; a winding part, which is arranged on the base; a first limiting plate, which is arranged around the circumference of a part of the winding part, wherein the inner side surface of the first limiting plate and the circumference of the winding part form a wire clamping groove; and a second limiting plate, which is arranged at the upper notch of the wire clamping groove to press the wire tightly in the wire clamping groove. The wire fixing structure in the present invention can effectively improve the stability of the wire fixing.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a wire fixing structure and a household appliance. Background Art

[0002] Electric heaters can be widely used in various places such as residences, offices, hotels, hospitals, schools, train carriages, etc.

[0003] There are multiple power cords for current conduction inside the electric heater. Due to the characteristics of the internal structure of the electric heater, the power cords need to be inserted into different end faces of the same component when they are arranged, and the inserted power cords need to be fixed at their insertion positions.

[0004] The fixing of the above-mentioned power cord needs to meet the following requirements, that is, after the power cord is fixed, under the condition of external preset tension, the deviation distance of the line along the length direction cannot be greater than two millimeters, so as to meet the national standard requirements (GB4706.1-2005 25.15), so the fixing of the power cord is required to have good stability. Summary of the invention

[0005] Therefore, the present invention aims to improve the stability of fixing the power cord of the electric heater, thereby providing a wire fixing structure and a household appliance.

[0006] In order to solve the above problems, the present invention provides an electric wire fixing structure including: a base; a winding part, which is arranged on the base; a first limiting plate, which is arranged circumferentially around part of the winding part, wherein the inner side surface of the first limiting plate and the circumferential surface of the winding part form a wire clamping groove; a second limiting plate, which is arranged at the upper notch of the wire clamping groove to press the wire tightly into the wire clamping groove.

[0007] The wire fixing structure in the present invention further comprises a plurality of first protrusions arranged on the inner side surface of the first limiting plate and / or the outer peripheral surface of the winding portion.

[0008] Furthermore, a plurality of second protrusions are provided on the end surface of the second limiting plate in contact with the electric wire.

[0009] Furthermore, the first protrusion and the second protrusion can be constructed as one or more of convex points, convex strips and convex blocks.

[0010] Furthermore, the second limiting plate is arranged on the winding part.

[0011] Furthermore, the second limiting plate includes: a pressure plate, which is pressed on the electric wire; a clamping part, which is clamped on the winding part, and the clamping part is a buckle or a slot, and the winding part is provided with the slot or the buckle corresponding to the clamping part.

[0012] Furthermore, the clamping part includes: a support column, which is arranged on the pressure plate; and a first clamping head, which is arranged at the end of the support column, and the first clamping head is in a "V" shape. A first clamping groove is arranged on the winding part, and at a preset clamping position, the upper ends of both sides of the "V" shape abut against the bottom of the first clamping groove.

[0013] Furthermore, a second clamping head is provided at one side of the upper ends of both sides of the "V" shape close to the support column, a second clamping slot is provided above the first clamping slot, and the second clamping head abuts against the bottom of the second clamping slot.

[0014] Furthermore, the winding portion is constructed as a cylindrical structure.

[0015] The present invention also provides a household appliance comprising any of the above-mentioned wire fixing structures.

[0016] Furthermore, the household appliance is an electric heater.

[0017] The technical solution of the present invention has the following advantages:

[0018] 1. The wire fixing structure in the present invention comprises: a base; a winding part, which is arranged on the base; a first limiting plate, which is arranged around the circumference of part of the winding part, wherein the inner side surface of the first limiting plate and the circumferential surface of the winding part form a wire clamping groove; a second limiting plate, which is arranged at the upper notch of the wire clamping groove to press the wire tightly in the wire clamping groove.

[0019] When the wires are fixed in the present invention, the wires are clamped in the wire clamping groove, and the wire clamping groove plays a first fixing role for the wires. Furthermore, the wire clamping groove is arranged circumferentially around the winding part, which means that when the line is clamped in the wire clamping groove, it is bound to the winding part in a bent state, and the winding part plays a second fixing role for the wires. Furthermore, a second limiting plate is also provided on the notch of the wire clamping groove, which acts on the surface of the wire at the notch to press it from above into the wire clamping groove, which plays a third fixing role, thereby effectively ensuring that when the wires are subjected to external force, there will be no obvious loosening and expansion and contraction relative to the fixed position, thereby improving the stability of the fixation of power lines and other lines.

[0020] 2. The wire fixing structure of the present invention also includes a plurality of first protrusions arranged on the inner side of the first limit plate and / or the outer peripheral surface of the winding part. Because the outer periphery of the circuit is mostly a rubber shell, its surface friction coefficient is low and it is easy to slide in the clamping groove, so the protrusions are arranged to form a sawtooth-like bite on the contact surface with the wire to increase the friction fixing effect on it and improve the stability of the wire fixing.

[0021] 3. In the wire fixing structure of the present invention, the second limit plate is provided with a plurality of second protrusions on the end surface contacting the wire. Similar to the first protrusions provided on the inner side surface of the first limit plate and / or the outer peripheral surface of the winding part, the principles are the same and both can improve the friction fixing effect and increase the stability of the wire fixing.

[0022] 4. In the wire fixing structure of the present invention, a second clamp is provided on one side of the upper end of both sides of the "V" shape close to the support column, a second clamp is provided above the first clamp, and the second clamp abuts against the bottom of the second clamp. In addition to the first clamp, the clamping part of the second limit plate of the present invention also has a second clamp to ensure the stability of the second limit plate. The second limit plate has good stability, which can ensure that it can always press the wire into the wire clamping groove to improve the fixing ability of the wire.

[0023] 5. The winding part of the wire fixing structure in the present invention is constructed as a cylindrical structure. The cylindrical structure does not have obvious sharp corners, which can prevent the wire from being cut by the winding column when the wire is pulled by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic structural diagram of the wire fixing structure in Embodiment 1 provided by the present invention;

[0026] Figure 2 An exploded view of the wire fixing structure in Embodiment 1 provided by the present invention;

[0027] Figure 3 This is a cross-sectional view of the wire fixing structure in Example 1 provided by the present invention.

[0028] Description of reference numerals:

[0029] 1 – base;

[0030] 2-winding part; 21-card slot; 211-first card slot; 212-second card slot;

[0031] 3-First limit plate;

[0032] 4-cable clamping groove;

[0033] 5-second limit plate; 51-pressing plate; 52-clamping portion; 521-support column; 522-first clamping head; 523-second clamping head;

[0034] 6 - first raised portion;

[0035] 7-Electric wires;

[0036] 8 - baffle;

[0037] 9-Reinforcement ribs. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] Example 1

[0043] Figures 1 to 3As shown, a wire fixing structure provided in this embodiment includes: a base 1; a winding part 2, which is arranged on the base 1; a first limiting plate 3, which is arranged around the circumference of part of the winding part 2, wherein the inner side surface of the first limiting plate 3 and the circumferential surface of the winding part 2 form a wire clamping groove 4; a second limiting plate 5, which is arranged at the upper notch of the wire clamping groove 4 to press the wire tightly into the wire clamping groove 4.

[0044] The wire fixing structure in this embodiment is used for installing and fixing the power cord in the electric heater. The wire fixing structure in this embodiment can achieve a good fixing effect on the above-mentioned power cord.

[0045] Of course, in some other implementations, the wire fixing structure of the present invention can also be used in electrical appliances such as fans, kettles, and air conditioners.

[0046] The wire fixing structure in this embodiment is prepared by injection molding process, and its material is nylon (PE), which is suitable for batch processing and low cost.

[0047] Of course, in some other implementations, the material may also be POM, which has better structural strength.

[0048] like Figure 1 As shown in the figure, the circumferential arrangement of the first limiting plate 3 around part of the winding portion 2 gives a specific arrangement method, that is, the first limiting plate 3 is arranged around the winding portion 2 in a "U" shape, thereby forming a "U"-shaped wire clamping groove 4, and the two ends of the "U"-shaped wire clamping groove are used as wire inlet and wire outlet. When installing, the wires are directly pressed into the wire clamping groove 4 from the upper end of the wire clamping groove 4.

[0049] Here, the characteristics of the wire clamping groove 4 are briefly described. The groove width of the wire clamping groove 4 is smaller than the diameter of the wire 7. In this embodiment, the difference between the two is 1 mm, so that the wire 7 can be clamped in the wire clamping groove 4 in an interference fit manner.

[0050] In order to prevent the electric wire 7 clamped in the wire clamping groove 4 from escaping from the upper notch of the wire clamping groove 4 , a second limiting plate 5 is further provided to press the electric wire 7 tightly into the wire clamping groove 4 .

[0051] Regarding the description of the winding part 2, Figure 1 As shown in FIG. 1 , in this embodiment, the electric wire 7 is only partially, approximately half a turn, wrapped around the winding portion 2 .

[0052] Of course, in some other embodiments, the electric wire 7 can also be fixed on the winding part 2 by winding multiple turns. The multiple turns winding method has a better fixing effect, and when the line of the electric wire 7 is too long, it can be used to gather the excess wire length.

[0053] like Figure 2As shown in FIG. 1 , the winding portion 2 in this embodiment is configured to be cylindrical, and the cylindrical structure does not have obvious sharp corners. When the wire 7 is pulled by external force, the wire 7 can be prevented from being cut by the winding portion 2 .

[0054] Through the above explanation, it can be clearly found that in this embodiment, when the electric wire 7 is fixed, the electric wire 7 is clamped in the wire clamping groove 4, and the wire clamping groove 4 plays a first fixing role for the electric wire 7. Furthermore, the wire clamping groove 4 is arranged circumferentially around the winding part 2, which means that when the line is clamped in the wire clamping groove 4, it is tied to the winding part 2 in a bent state, and the winding part 2 plays a second fixing role for the electric wire 7. Furthermore, a second limiting plate 5 is also provided on the notch of the wire clamping groove 4, which acts on the surface of the electric wire 7 at the notch to press it from above into the wire clamping groove 4, which plays a third fixing role. This triple fixing role effectively ensures that when the electric wire 7 is subjected to external force, it will not produce obvious looseness and expansion relative to the fixed position, thereby improving the stability of the fixation of power lines and other lines.

[0055] like Figure 2 As shown in FIG. 1 , the present embodiment further includes a plurality of first protrusions 6 formed directly on the inner side of the first limiting plate 3, and the first protrusions 6 are convex strip structures extending along the height direction of the first limiting plate 3. Since the outer periphery of the circuit is mostly a rubber shell, the surface friction coefficient is low and it is easy to slide in the clamping groove 4, the first protrusions 6 are provided to form a sawtooth-like bite on the contact surface with the wire to increase the friction fixing effect on it and improve the stability of the wire fixing.

[0056] In some other embodiments, the first protrusion 6 mentioned above can also be formed on the outer peripheral surface of the winding portion 2, which has the same technical effect.

[0057] In some other embodiments, the first protrusion 6 can be formed simultaneously on the inner side of the first limiting plate 3 and the outer peripheral surface of the winding portion 2, which can increase the friction resistance on both sides of the wire 7 at the same time to improve the stability of the fixation of the wire 7.

[0058] In some other embodiments, the second limit plate 5 may be formed with a plurality of second protrusions on the end surface of the wire 7. The structure of the second protrusions is similar to that of the first protrusions 6, and both can increase the friction resistance to the wire 7 and improve the stability of the wire 7 fixation.

[0059] In some other embodiments, the first protrusion 6 and the second protrusion may also be constructed as a convex point structure, a convex block structure, or any combination thereof.

[0060] The following is a detailed description of the structure of the second limiting plate 5 .

[0061] like Figure 3As shown in FIG. 1 , the second limit plate 5 is clamped on the winding part 2 , and the installation of the second limit plate 5 can be completed by pressing, and the installation is simple and convenient.

[0062] In some other embodiments, the second limiting plate 5 can also be fixed to the winding part 2 by screwing. In one specific embodiment, it can be directly screwed to the upper end surface of the winding part 2 by screws.

[0063] In some other embodiments, the second limiting plate 5 may also be installed on the first limiting plate 3. In one specific embodiment, it may be screwed to the outer side of the upper edge of the first limiting plate 3 by screws.

[0064] like Figure 3 As shown, the second limiting plate 5 includes: a pressing plate 51, the lower end surface of the pressing plate 51 is pressed on the electric wire; a clamping portion 52 is formed on the lower end surface of the pressing plate 51, and the clamping portion 52 is clamped on the winding portion 2. The clamping portion 52 in this embodiment is a buckle, and a clamping groove 21 is provided on the winding portion 2 corresponding to the clamping portion 52. When the clamping portion 52 is pressed into the clamping groove 21, the pressing plate 51 is driven to press the electric wire 7. The clamping groove 21 in this embodiment is formed at the center position of the upper end surface of the winding portion 2, and it is downward along the above-mentioned upper end surface to form the structural characteristics of the clamping groove 21.

[0065] In some other embodiments, the clamping portion 52 may be a clamping slot structure, and a corresponding buckle structure may be provided on the winding portion 2 to also achieve installation.

[0066] like Figure 3 As shown, the clamping part 52 includes: a support column 521, one end of which is directly formed on the pressure plate 51; and a first clamping head 522, which is formed on the other end of the support column 521. The first clamping head 522 is in a "V" shape. A first clamping groove 211 is formed on the winding part 2. At the preset clamping position, the upper ends of the two sides of the "V" shape abut against the bottom of the first clamping groove 211. A second clamping head 523 is formed on the upper ends of the two sides of the "V" shape near the support column 521. A second clamping groove 212 is formed above the first clamping groove 211, and the second clamping head 523 abuts against the bottom of the second clamping groove 212. In addition to the first clamping head 522, the clamping part 52 in the second limit plate 5 of this embodiment also has a second clamping head 523 to ensure the stability of the clamping of the second limit plate 5. The second limit plate 5 has good clamping stability, which can ensure that it can always press the wire 7 into the clamping groove 4 to improve the fixing ability of the wire 7.

[0067] like Figure 1 As shown in or 2, in this embodiment, a baffle 8 is arranged on the base 1 opposite to the first limiting plate 3, and the baffle 8 and a partial structure of the first limiting plate 3 form an input or output passage to achieve the effect of embedding the wire 7 on the base 1 to protect the wire 7.

[0068] Furthermore, in order to enhance the structural strength of the baffle 8, reinforcing ribs 9 are formed between the baffle 8 and the outer circumferential surface of the winding portion 2, and the reinforcing ribs 9 connect the baffle 8 and the winding portion 2 into an integral structure.

[0069] Example 2

[0070] This embodiment provides a household appliance, specifically an electric heater, which includes the wire fixing structure described in the above-mentioned embodiment 1 and has all its technical advantages, which will not be described one by one here.

[0071] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A wire fixing structure, characterized in that: include: Base (1); A winding portion (2) is arranged on the base (1); A first limiting plate (3) is arranged around a portion of the winding portion (2) in the circumferential direction, wherein a wire clamping groove (4) is formed between the inner side surface of the first limiting plate (3) and the circumferential surface of the winding portion (2); A second limiting plate (5) is arranged at the upper notch of the wire clamping groove (4) to press the wire tightly into the wire clamping groove (4); the second limiting plate (5) is arranged on the winding portion (2); the second limiting plate (5) comprises a pressing plate (51) which is pressed onto the wire; A clamping portion (52) is clamped on the winding portion (2); the clamping portion (52) comprises: a support column (521) arranged on the pressing plate (51); and a first clamping head (522) arranged at the end of the support column (521), the first clamping head (522) being in a "V" shape, the winding portion (2) being provided with a first clamping groove (211), and at a preset clamping position, the upper ends of both sides of the "V" shape abut against the bottom of the first clamping groove (211); the upper ends of both sides of the "V" shape are provided with a second clamping head (523) on a side close to the support column (521), the second clamping groove (212) is provided above the first clamping groove (211), and the second clamping head (523) abuts against the bottom of the second clamping groove (212).

2. The wire fixing structure according to claim 1, characterized in that: It also comprises a plurality of first protrusions (6) arranged on the inner side surface of the first limiting plate (3) and / or the outer peripheral surface of the winding portion (2).

3. The wire fixing structure according to claim 2, characterized in that: The second limiting plate (5) is provided with a plurality of second protrusions on the end surface in contact with the electric wire.

4. The wire fixing structure according to claim 3, characterized in that: The first protrusion (6) and the second protrusion can both be constructed as one or more of a convex point, a convex strip and a convex block.

5. The wire fixing structure according to any one of claims 1 to 4, characterized in that: The clamping portion (52) is a clamping buckle or a clamping groove (21), and the winding portion (2) is provided with the clamping groove (21) or the clamping buckle corresponding to the clamping portion (52).

6. The wire fixing structure according to claim 5, characterized in that: The winding portion (2) is constructed as a cylindrical structure.

7. A household appliance, characterized in that: include: The wire fixing structure as claimed in any one of claims 1 to 6.

8. The household appliance according to claim 7, characterized in that: The household appliance is an electric heater.

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