Air duct of high-speed quilt warming machine

Abstract

The utility model discloses a high-speed quilt warming machine air duct which comprises a machine body, a power line groove is formed in the bottom of the right side of an inner cavity of the machine body, a circuit board bin is formed in the top of the right side of the inner cavity of the machine body, a circuit board body is fixedly connected to the front side of an inner cavity of the circuit board bin, and the air duct is formed in the left side of the inner cavity of the machine body. A high-speed motor is arranged at the bottom of the left side of an inner cavity of the machine body, a PTC heating body is arranged at the top of the high-speed motor, an air outlet screen plate is arranged at the top of the PTC heating body, an inner pipe is fixedly connected to the outer side of the air outlet screen plate, a middle pipe is arranged on the outer surface of the inner pipe, and an outer pipe is arranged on the outer surface of the middle pipe. According to the utility model, cold air enters the power line groove from the air inlet screen plate and then enters the circuit board bin, so that the effect of dissipating heat of the circuit board body is achieved, then the cold air enters the high-speed motor through the air duct and then passes through the PTC heating body to heat the cold air, and hot air is blown out from the air outlet screen plate, so that the heating work is carried out.

Description

Technical Field

[0001] This utility model relates to the field of quilt warmer technology, specifically a high-speed quilt warmer air duct. Background Technology

[0002] A bed warmer is a small household appliance that heats air and delivers the hot air into the bedding or other fabrics to quickly remove moisture and improve the warmth and comfort of sleep. Its core function is to use a heat source to heat the air and then introduce the hot air into the bedding space through an air duct system. It usually features fast heating, portability, ease of use, and safety protection, and is suitable for damp and cold environments or scenarios where the bed needs to be preheated.

[0003] Existing comforter products generally adopt a linear series design for their air duct structure, with a typical sequence of: air inlet grille → circuit board → motor → PTC heating element → air outlet grille. This structure has the following significant drawbacks: Excessive product height: The linear air duct requires vertical stacking of various functional components (such as the motor and heating element), resulting in a large overall size. This is particularly impractical in scenarios requiring high portability (such as home storage or travel use). Insufficient heat dissipation and space utilization: Cold air is only heated through the heating element path and does not come into contact with the circuit board or other heating elements, failing to achieve the function of "air duct airflow-assisted heat dissipation," potentially affecting circuit stability. Furthermore, the power cord storage space is separate from the air duct, leading to internal structural redundancy and low space utilization. Limited usage scenarios: The fixed length design of the air outlet grille makes it difficult to adapt to different thicknesses of bedding or spatial distance requirements, and hot air cannot penetrate deeply into the bedding during warming, affecting heating efficiency. Therefore, we propose a high-speed comforter air duct design. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a high-speed quilt warmer air duct with the advantages of high efficiency. It solves the problem that existing quilt warmer products generally use a linear series design for their air ducts, typically in the following order: air inlet grille → circuit board → motor → PTC heating element → air outlet grille. This structure has the following significant drawbacks: Excessive product height: The linear air duct requires vertical stacking of various functional components (such as the motor and heating element), resulting in a large overall size, which is particularly impractical in scenarios requiring high portability (such as home storage or travel use). Insufficient heat dissipation and space utilization: Cold air is only heated through the heating element path and does not come into contact with the circuit board or other heating elements, failing to achieve the function of "air duct airflow-assisted heat dissipation," potentially affecting circuit stability. Furthermore, the power cord storage space is separate from the air duct, leading to internal structural redundancy and low space utilization. Limited usage scenarios: The fixed length design of the air outlet grille makes it difficult to adapt to different thicknesses of quilts or spatial distances, and hot air cannot penetrate deeply into the quilt during warming, affecting heating efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-speed quilt warmer air duct, comprising a body, a power cord groove at the bottom right side of the inner cavity of the body, a circuit board compartment at the top right side of the inner cavity of the body, a circuit board body fixedly connected to the front side of the inner cavity of the circuit board compartment, an air duct on the left side of the inner cavity of the body, a high-speed motor at the bottom left side of the inner cavity of the body, a PTC heating element at the top of the high-speed motor, an air outlet grille at the top of the PTC heating element, an inner tube fixedly connected to the outer side of the air outlet grille, a middle tube on the outer surface of the inner tube, an outer tube on the outer surface of the middle tube, and one side of the outer tube fixedly connected to the body.

[0006] Preferably, a movable groove is provided on the left side of the bottom of the machine body, and an air inlet mesh plate is fixedly connected to the inner cavity of the movable groove.

[0007] Preferably, a first bracket is fixedly connected to the outer side of the high-speed motor, and a second bracket is provided on the outer side of the first bracket. The inner side of the second bracket is fixedly connected to the PTC heating element, and a support base is fixedly connected to the bottom of both the first bracket and the second bracket. One side of the support base is fixedly connected to the machine body.

[0008] Preferably, a first sliding groove is provided on both sides of the inner cavity of the outer tube, and a first sliding rail protrusion is slidably connected to one side of the first sliding groove, and one side of the first sliding rail protrusion is fixedly connected to the middle tube.

[0009] Preferably, a second sliding groove is provided on both sides of the inner cavity of the middle tube, and a second slide rail protrusion is slidably connected to one side of the second sliding groove, and one side of the second slide rail protrusion is fixedly connected to the inner tube.

[0010] Preferably, a control panel is fixedly connected to the front of the machine body, a connecting seat is fixedly connected to the right side of the top of the machine body, and a connecting rope is fixedly connected to one side of the connecting seat.

[0011] Compared with the prior art, this utility model provides a high-speed quilt warmer air duct, which has the following beneficial effects:

[0012] In this invention, cold air enters the power cord trough through the air inlet grille, then enters the circuit board compartment, thereby dissipating heat from the circuit board itself. The air then passes through the air duct into the high-speed motor, and then through the PTC heating element to heat the cold air. The hot air is then blown out from the air outlet grille, thus performing the heating function. The air outlet grille has a telescopic structure; the outer tube is fixedly connected to the body, forming an air duct and also forming a telescopic structure with the middle and inner tubes. The outer tube contains a first sliding groove, and the outer side of the middle tube has a first sliding rail protrusion. The first sliding rail protrusion combines with the first sliding groove, and the inner side of the middle tube has a second sliding groove, which also combines with the second sliding rail protrusion to form the telescopic structure. During operation, the first sliding rail protrusion interferes with the inner wall of the first sliding groove, and the second sliding rail protrusion interferes with the inner wall of the second sliding groove, allowing the telescopic structure to hover at different positions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a first-view structural schematic diagram of the present invention in cross-section.

[0015] Figure 3 This is a schematic diagram of the structure of the present invention from a second perspective in cross-sectional view;

[0016] Figure 4 This is a cross-sectional view of the present invention under tension.

[0017] In the diagram: 1. Main body; 2. Control panel; 3. Connecting base; 4. Connecting rope; 5. Air inlet grille; 6. Power cable tray; 7. Circuit board compartment; 8. Circuit board body; 9. Air duct; 10. High-speed motor; 11. PTC heating element; 12. Air outlet grille; 13. Outer tube; 14. Middle tube; 15. Inner tube; 16. First slide rail protrusion; 17. Second slide rail protrusion; 18. Support base. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Please see Figures 1 to 4 As shown, this utility model provides a high-speed quilt warmer air duct, including a body 1. A power cord groove 6 is provided at the bottom right side of the inner cavity of the body 1. A circuit board compartment 7 is provided at the top right side of the inner cavity of the body 1. A circuit board body 8 is fixedly connected to the front side of the inner cavity of the circuit board compartment 7. An air duct 9 is provided on the left side of the inner cavity of the body 1. A high-speed motor 10 is provided at the bottom left side of the inner cavity of the body 1. A PTC heating element 11 is provided at the top of the high-speed motor 10. An air outlet mesh 12 is provided at the top of the PTC heating element 11. An inner tube 15 is fixedly connected to the outer side of the air outlet mesh 12. A middle tube 14 is provided on the outer surface of the inner tube 15. An outer tube 13 is provided on the outer surface of the middle tube 14. One side of the outer tube 13 is fixedly connected to the body 1.

[0021] An movable slot is provided on the left side of the bottom of the body 1, and an air inlet mesh plate 5 is fixedly connected to the inner cavity of the movable slot.

[0022] A first bracket is fixedly connected to the outside of the high-speed motor 10, and a second bracket is provided on the outside of the first bracket. The inside of the second bracket is fixedly connected to the PTC heating element 11, and a support base 18 is fixedly connected to the bottom of both the first bracket and the second bracket. One side of the support base 18 is fixedly connected to the body 1.

[0023] The inner cavity of the outer tube 13 is provided with a first sliding groove on both sides, and a first slide rail protrusion 16 is slidably connected to one side of the first sliding groove. One side of the first slide rail protrusion 16 is fixedly connected to the middle tube 14.

[0024] The inner cavity of the middle tube 14 is provided with a second sliding groove on both sides, and a second slide rail protrusion 17 is slidably connected to one side of the second sliding groove. One side of the second slide rail protrusion 17 is fixedly connected to the inner tube 15.

[0025] A control panel 2 is fixedly connected to the front of the main body 1, a connecting seat 3 is fixedly connected to the right side of the top of the main body 1, and a connecting rope 4 is fixedly connected to one side of the connecting seat 3.

[0026] Working principle: During operation, the high-speed motor 10 is started via the control panel 2, allowing cold air to enter the power cord slot 6 from the air inlet grille 5, and then into the circuit board compartment 7, thereby dissipating heat from the circuit board body 8. The air then passes through the air duct 9 into the high-speed motor 10, and then through the PTC heating element 11 to heat the cold air. The hot air is then blown out from the air outlet grille 12, thus performing the heating operation. The air outlet grille 12 has a telescopic structure. The outer tube 13 is fixedly connected to the body 1, forming the air duct 9, and also forming a telescopic structure with the middle tube 14 and the inner tube 15. The outer tube 13 has a first sliding groove, and the outer side of the middle tube 14 has a first slide rail protrusion 16. The first slide rail protrusion 16 is combined with the first slide groove. The inner side of the middle tube 14 also has a second slide groove, which is combined with the second slide rail protrusion 17 to form a telescopic structure. Moreover, during operation, the first slide rail protrusion 16 will interfere with the inner wall of the first slide groove, and the second slide rail protrusion 17 will interfere with the inner wall of the second slide groove, so that the telescopic structure can be suspended at different positions.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A high-speed quilt warmer air duct, comprising a body (1), characterized in that: A power cable groove (6) is provided at the bottom right side of the inner cavity of the machine body (1). A circuit board compartment (7) is provided at the top right side of the inner cavity of the machine body (1). A circuit board body (8) is fixedly connected to the front side of the inner cavity of the circuit board compartment (7). An air duct (9) is provided on the left side of the inner cavity of the machine body (1). A high-speed motor (10) is provided at the bottom left side of the inner cavity of the machine body (1). A PTC heating element (11) is provided at the top of the high-speed motor (10). An air outlet mesh plate (12) is provided at the top of the PTC heating element (11). An inner tube (15) is fixedly connected to the outer side of the air outlet mesh plate (12). A middle tube (14) is provided on the outer surface of the inner tube (15). An outer tube (13) is provided on the outer surface of the middle tube (14). One side of the outer tube (13) is fixedly connected to the machine body (1).

2. The high-speed quilt warmer air duct according to claim 1, characterized in that: The bottom left side of the body (1) has a movable slot, and the inner cavity of the movable slot is fixedly connected to an air inlet mesh plate (5).

3. The high-speed quilt warmer air duct according to claim 1, characterized in that: The high-speed motor (10) is fixedly connected to a first bracket on the outside, and a second bracket is provided on the outside of the first bracket. The inner side of the second bracket is fixedly connected to the PTC heating element (11). The bottom of the first bracket and the second bracket are both fixedly connected to a support base (18). One side of the support base (18) is fixedly connected to the body (1).

4. The high-speed quilt warmer air duct according to claim 1, characterized in that: The inner cavity of the outer tube (13) is provided with a first sliding groove on both sides, and a first slide rail protrusion (16) is slidably connected to one side of the first sliding groove. One side of the first slide rail protrusion (16) is fixedly connected to the middle tube (14).

5. The high-speed quilt warmer air duct according to claim 1, characterized in that: The inner cavity of the middle tube (14) is provided with a second sliding groove on both sides, and a second slide rail protrusion (17) is slidably connected to one side of the second sliding groove. One side of the second slide rail protrusion (17) is fixedly connected to the inner tube (15).

6. The high-speed quilt warmer air duct according to claim 1, characterized in that: A control panel (2) is fixedly connected to the front of the body (1), a connecting seat (3) is fixedly connected to the right side of the top of the body (1), and a connecting rope (4) is fixedly connected to one side of the connecting seat (3).

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