Heating type centrifugal fan adopting spring heating wire

Abstract

The utility model discloses a heating type centrifugal fan adopting a spring heating wire, which comprises a fan main body, an air guide shell, a mounting hook and the spring heating wire, an air guide channel is arranged in the air guide shell, a fixed terminal is arranged in the air guide channel, and a plurality of mounting holes penetrating to the outer side of the air guide shell are arranged at two ends of the air guide channel. During installation, one end of the spring electric heating wire is fixed to one of the fixing terminals, then the spring electric heating wire is wound in sequence, and therefore the spring electric heating wire is hung on all the installation hooks. The spring electric heating wire is tensioned and the tail end of the spring electric heating wire is fixed to the other fixing terminal, a mounting frame does not need to be adopted to be fixed to the middle of the air guide channel, the space occupied by the spring electric heating wire in the air guide channel is smaller, therefore, the air volume is larger, the mounting procedures are reduced, the mounting hook is fixed by tensioning the spring electric heating wire, and screw mounting is not needed. And materials are saved.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal fans, in particular to a heating type centrifugal fan using a spring heating wire. Background Art

[0002] A heating centrifugal fan generally has an extended channel at the air outlet of the fan, and then a heating structure is installed in the extended channel to heat the blown air. It is used in all walks of life. The current heating centrifugal fan generally has an extended air guide channel on the fan body, a mounting bracket in the middle of the air guide channel, and then the heating wire or heating plate is fixed to the mounting bracket. This leads to a defect, that is, the mounting bracket will occupy the cross-sectional space of the air guide channel, resulting in the air being blocked not only by the heating component but also by the mounting bracket during the blowing process, thereby affecting the air volume. For example, the drying duct assembly disclosed in Patent No. 202210179749.1 and the clothing processing equipment including the drying duct assembly. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide a heating centrifugal fan using a spring heating wire, which reduces the space occupied by the air guide channel.

[0004] The technical solution adopted by the utility model to solve the problem is: a heating centrifugal fan using a spring heating wire, comprising:

[0005] A fan body, the fan body comprising a rotor cavity, rotor blades disposed in the rotor cavity, a motor for driving the rotor blades to rotate, and an air guide port disposed on a surface of the fan body and connected to the rotor cavity;

[0006] An air guide housing, wherein an air outlet is provided at the front end of the air guide housing, an air guide channel connected to the air outlet is transversely provided in the air guide housing, the fan body is mounted on the top of the air guide housing so that the air guide outlet is connected to the top of the air guide channel, a plurality of mounting holes are evenly arranged on both sides of the air guide channel, the mounting holes are staggered with each other and extend to the outer surface of the air guide housing, and two fixing terminals are provided in the air guide channel, respectively, located on the front and rear sides of all the mounting holes;

[0007] a mounting hook, wherein a rear end of the mounting hook is provided with an anti-slip seat, the width of the anti-slip seat being greater than the length of the mounting hole, and the width of the mounting hook being less than the length of the mounting hole, the mounting hook being inserted into the air guide channel along the mounting hole and the anti-slip seat being in contact with the outer surface of the air guide housing;

[0008] The spring heating wire has two ends fixed to the two positioning ends respectively, and the spring heating wire is sequentially coiled and hung on all the mounting hooks and tightened.

[0009] As a further improvement of the above technical solution, a transition section is provided between the mounting hook and the anti-slip seat, and the transition section is transitionally matched with the mounting hole.

[0010] As a further improvement of the above technical solution, the top of the transition section is lower than the top of the mounting hook and the top of the anti-slip seat, the end of the bottom of the transition section is higher than the bottom of the anti-slip seat and lower than the bottom of the mounting hook, the front end of the bottom of the transition section is connected to the end of the bottom of the mounting hook, and the width of the transition section gradually increases from front to back, and the end of the transition section is transitionally matched with the mounting hole.

[0011] As a further improvement of the above technical solution, the air guide shell includes an upper shell and a lower shell, the upper shell includes an upper plate and side plates located on both sides of the upper plate, the lower shell includes a lower plate and a back plate located behind the lower plate, the upper shell and the lower shell are combined to form the air guide channel and the air outlet, the side plates abut against the upper surface of the lower plate and the back plate abuts against the bottom surface of the upper plate.

[0012] As a further improvement of the above technical solution, additional plates located outside the side plates are further provided on the left and right sides of the lower plate, and the additional plates are fixed to the side plates by bolts.

[0013] The beneficial effects of the present invention are as follows: by providing a plurality of mounting holes penetrating to the outside of the air guide shell at both ends of the air guide channel, the mounting hooks extend through the mounting holes into the air guide channel and make the anti-detachment seat abut against the outer surface of the air guide shell. During installation, one end of the spring heating wire is first fixed to one of the fixed terminals, and then it is coiled in sequence to hang on all the mounting hooks to form a winding S shape, and then the end of the spring heating wire is tightened and fixed to the other fixed terminal. Through this solution, first, there is no need to use a mounting bracket to fix it in the middle of the air guide channel, which occupies less space in the air guide channel and thus has a larger air volume. Second, since the mounting bracket is not installed, the installation process is reduced. Third, since the mounting hook is fixed by tightening the spring heating wire, there is no need to use screws for installation, which saves materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further explained below with reference to the accompanying drawings and specific implementation methods.

[0015] Figure 1 This is one of the schematic structural diagrams of the preferred embodiment of the utility model;

[0016] Figure 2 This is the second structural diagram of the preferred embodiment of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure after the lower shell is hidden;

[0018] Figure 4It is an exploded view of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Reference Figures 1 to 4 , a heating type centrifugal fan using a spring heating wire, comprising:

[0024] The fan body 10 includes a rotor cavity, rotor blades disposed in the rotor cavity, a motor for driving the rotor blades to rotate, and an air guide 11 disposed on a surface of the fan body 10 and connected to the rotor cavity;

[0025] An air guide housing 20 is provided with an air outlet at the front end of the air guide housing 20. An air guide channel 201 is horizontally provided inside the air guide housing 20 and is connected to the air outlet. The fan body 10 is installed on the top of the air guide housing 20 so that the air guide outlet 11 is connected to the top of the air guide channel 201. A number of mounting holes 23 are evenly arranged on both sides of the air guide channel 201, which are staggered and extend to the outer surface of the air guide housing 20. Two fixing terminals 24 are provided in the air guide channel 201, respectively located on the front and rear sides of all the mounting holes 23;

[0026] A mounting hook 30 is provided with an anti-slip seat 31 at the rear end of the mounting hook 30. The width of the anti-slip seat 31 is greater than the length of the mounting hole 23, and the width of the mounting hook 30 is less than the length of the mounting hole 23. The mounting hook 30 is inserted into the air guide channel 201 along the mounting hole 23 so that the anti-slip seat 31 abuts against the outer surface of the air guide housing 20.

[0027] The spring heating wire 40 has two ends fixed to the two positioning ends respectively, and the spring heating wire 40 is sequentially coiled and hung on all the mounting hooks 30 and tightened.

[0028] By providing a number of mounting holes 23 at both ends of the air guide channel 201 that penetrate to the outside of the air guide shell 20, the mounting hook 30 extends through the mounting holes 23 into the air guide channel 201 and makes the anti-detachment seat 31 abut against the outer surface of the air guide shell 20. During installation, one end of the spring heating wire 40 is first fixed to one of the fixed terminals 24, and then coiled in sequence to hang on all the mounting hooks 30 to form a winding S shape, and then tightened and fixed the end of the spring heating wire 40 to the other fixed terminal 24. Through this solution, first, there is no need to use a mounting bracket to fix it in the middle of the air guide channel 201, which occupies less space in the air guide channel 201, so the air volume is larger. Second, since no mounting bracket is installed, the installation process is reduced. Third, since the mounting hook 30 is fixed by tightening the spring heating wire 40, there is no need to use screws for installation, saving materials.

[0029] For further optimization, it is preferred that a transition section 32 is provided between the mounting hook 30 and the anti-slip seat 31 , and the transition section 32 is transitionally matched with the mounting hole 23 . The top of the transition section 32 is preferably lower than the top of the mounting hook 30 and the top of the anti-slip seat 31, the end of the bottom of the transition section 32 is higher than the bottom of the anti-slip seat 31 and lower than the bottom of the mounting hook 30, the front end of the bottom of the transition section 32 is connected to the end of the bottom of the mounting hook 30, and the width of the transition section 32 gradually increases from front to back, and the end of the transition section 32 transitionally cooperates with the mounting hole 23, so that during installation, the mounting hook 30 is first extended through the mounting hole 23 into the air guide channel 201, and then the mounting hook 30 is further tightened inward and lifted up, so that the upper edge of the mounting hole 23 abuts against the top of the transition section 32, and then the upper edge of the mounting hole 23 is stuck in the groove formed by the top of the anti-slip seat 31 and the top of the mounting hook 30, and the end of the bottom of the transition section 32 also forms a transition fit with the bottom of the mounting hole 23, so that the mounting hook 30 is not easy to disengage.

[0030] Further optimization, preferably, the air guide housing 20 includes an upper housing 21 and a lower housing 22. The upper housing 21 includes an upper plate 211 and side plates 212 located on both sides of the upper plate 211. The lower housing 22 includes a lower plate 221 and a rear plate 222 located behind the lower plate 221. The upper housing 21 and the lower housing enclose the air guide channel 201 and the air outlet. The side plates 212 abut against the upper surface of the lower plate 221 and the rear plate 222 abut against the bottom surface of the upper plate 211. Therefore, during installation, the lower housing 22 is not installed first. After the spring heating wire 40 is installed, the lower housing 22 is installed on the upper housing 21. For ease of installation, additional plates 223 are preferably provided on the left and right sides of the lower plate 221, located on the outside of the side plates 212. The additional plates 223 are fixed to the side plates 212 by bolts. In other embodiments, secondary welding can also be used to fix the upper housing 21 and the lower housing 22 to each other.

[0031] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A heating centrifugal fan using a spring heating wire, characterized in that: include: A fan body (10), the fan body (10) comprising a wind wheel cavity, wind wheel blades arranged in the wind wheel cavity, a motor for driving the wind wheel blades to rotate, and an air guide port (11) arranged on a surface of the fan body (10) and connected to the wind wheel cavity; An air guide housing (20), wherein an air outlet is provided at the front end of the air guide housing (20), an air guide channel (201) connected to the air outlet is transversely provided in the air guide housing (20), the fan body (10) is installed on the top of the air guide housing (20) so that the air guide outlet (11) is connected to the top of the air guide channel (201), a plurality of mounting holes (23) are evenly arranged on both sides of the air guide channel (201) and are staggered with each other and extend through the outer surface of the air guide housing (20), and two fixed terminals (24) are provided in the air guide channel (201), which are respectively located on the front and rear sides of all the mounting holes (23); A mounting hook (30), wherein a rear end of the mounting hook (30) is provided with an anti-slip seat (31), the width of the anti-slip seat (31) is greater than the length of the mounting hole (23), and the width of the mounting hook (30) is less than the length of the mounting hole (23), and the mounting hook (30) is inserted into the air guide channel (201) along the mounting hole (23) and causes the anti-slip seat (31) to abut against the outer surface of the air guide housing (20); A spring heating wire (40), wherein both ends of the spring heating wire (40) are fixed to two positioning ends respectively, and the spring heating wire (40) is sequentially coiled and hung on all the installation hooks (30) and tightened.

2. A heating centrifugal fan using a spring heating wire as claimed in claim 1, characterized in that: A transition section (32) is provided between the mounting hook (30) and the anti-slip seat (31), and the transition section (32) is transitionally matched with the mounting hole (23).

3. A heating centrifugal fan using a spring heating wire as claimed in claim 2, characterized in that: The top of the transition section (32) is lower than the top of the mounting hook (30) and the top of the anti-slip seat (31); the end of the bottom of the transition section (32) is higher than the bottom of the anti-slip seat (31) and lower than the bottom of the mounting hook (30); the front end of the bottom of the transition section (32) is connected to the end of the bottom of the mounting hook (30); the width of the transition section (32) gradually increases from front to back; and the end of the transition section (32) is transitionally matched with the mounting hole (23).

4. The heating centrifugal fan using a spring heating wire according to claim 1, characterized in that: The air guide housing (20) comprises an upper housing (21) and a lower housing (22); the upper housing (21) comprises an upper plate (211) and side plates (212) located on both sides of the upper plate (211); the lower housing (22) comprises a lower plate (221) and a rear plate (222) located on the rear side of the lower plate (221); the upper housing (21) and the lower housing are combined to form the air guide channel (201) and the air outlet; the side plates (212) abut against the upper surface of the lower plate (221) and the rear plate (222) abut against the bottom surface of the upper plate (211).

5. The heating centrifugal fan using a spring heating wire according to claim 4, characterized in that: Additional plates (223) located outside the side plates (212) are further provided on the left and right sides of the lower plate (221), and the additional plates (223) are fixed to the side plates (212) by bolt connection.

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