Skirting heater

By incorporating a flow distribution structure and a cross-flow fan into the baseboard heater, the airflow and temperature distribution are optimized, solving the problem of poor heating performance and achieving a better user experience and room heating effect.

CN224381618UActive Publication Date: 2026-06-19QINGDAO LEJIA ELECTRIC APPLIANCE CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO LEJIA ELECTRIC APPLIANCE CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When existing baseboard heaters are equipped with fans, the heating effect is poor, especially in the case of rapidly flowing hot air with a low temperature, resulting in a poor user experience.

Method used

The baseboard heater has a front air outlet and a rear air outlet on the top of the casing, and a diversion structure between them. This results in different air speeds from the front and rear air outlets. The airflow direction is optimized by a cross-flow fan and a volute design, ensuring that the front air outlet has a lower air speed and a higher temperature, while the rear air outlet has a higher air speed and a lower temperature.

Benefits of technology

It achieves a comfortable heating effect on the user side, and at the same time, it quickly heats up the room with high-temperature air, so as to warm people first and then the room, thus improving the user experience and room heating efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224381618U_ABST
    Figure CN224381618U_ABST
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Abstract

The utility model belongs to the technical field of heating equipment, specifically provides a skirting line warmer. In order to solve the current skirting line warmer with fan makes the heating effect of user to be poor. The skirting line warmer of the utility model includes the casing, heating device, fan and shunt structure. The top of casing is provided with front air outlet and rear air outlet, and the bottom of casing is provided with air return. The heating device is arranged in the casing and is used for heating the air in the casing. The fan is arranged in the casing and is used for driving the air to enter the casing through the air return, and after flowing through the heating device, the air flows out of the casing through the front air outlet and the rear air outlet. The shunt structure is arranged in the casing and is located between the front air outlet and the rear air outlet, so that the air blowing speed from the front air outlet and the rear air outlet is different. The skirting line warmer with the above structure of the utility model improves the heating effect of user, and overcomes the above technical problems.
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Description

Technical Field

[0001] This utility model belongs to the technical field of heating equipment, and specifically provides a skirting board heater. Background Technology

[0002] A baseboard heater is a heating device shaped like a baseboard (or skirting board). By organically combining the baseboard with an electric heater, it achieves the purpose of heating without taking up space.

[0003] Existing baseboard heaters typically have the air inlet at the bottom and the air outlet at the top. This utilizes the natural convection phenomenon of hot air rising and cold air sinking to circulate indoor air and achieve a uniform heating effect. When cold air enters the baseboard heater through the air inlet, it exchanges heat with the heating element, producing hot air that flows out through the air outlet. This hot air rises around the room, creating a thermal curtain effect that evenly raises the temperature throughout the entire room.

[0004] To quickly raise the room temperature, some baseboard heaters are equipped with fans to promote the circulation of hot air. However, the rapidly circulating hot air is cooler than the hot air generated by natural convection, resulting in poor heating effect for users near the baseboard heater and a poor user experience. Utility Model Content

[0005] One objective of this invention is to solve the problem that current skirting board heaters with fans result in poor heating performance for users.

[0006] To achieve the above objectives, this utility model provides a baseboard heater, comprising:

[0007] The casing has a front air outlet and a rear air outlet on its top, and a return air outlet on its bottom.

[0008] A heating device is installed inside the housing for heating the air inside the housing;

[0009] A fan is installed inside the housing to drive air into the housing through the return air inlet, and after flowing through the heating device, it flows out of the housing through the front air outlet and the rear air outlet.

[0010] A flow splitting structure is provided inside the housing and located between the front air outlet and the rear air outlet, so that the air speeds blown out from the front air outlet and the rear air outlet are different.

[0011] Optionally, the flow splitting structure is configured such that the air velocity blowing from the front air outlet is less than the air velocity blowing from the rear air outlet, so that the temperature of the air blowing from the front air outlet is higher than the temperature of the air blowing from the rear air outlet.

[0012] Optionally, the flow splitting structure is configured such that the ratio of the air velocity blowing from the front air outlet to the air velocity blowing from the rear air outlet is any value selected from 1 / 4 to 2 / 3.

[0013] Optionally, the diversion structure extends along the left and right directions of the baseboard heater; the horizontal cross-section of the diversion structure gradually decreases from top to bottom, so that the cross-section of the diversion structure perpendicular to the left and right directions is conical or trapezoidal.

[0014] Optionally, the diversion structure includes a V-shaped portion and connecting portions located on the front and rear sides of the V-shaped portion, and the diversion structure is fixedly connected to the housing or integrally formed through the connecting portions.

[0015] Optionally, the bending angle of the V-shaped portion is selected from any value between 85° and 110°; and / or, the bottom end of the V-shaped portion is higher than the bottom ends of the front air outlet and the rear air outlet, respectively.

[0016] Optionally, the fan is a cross-flow fan disposed between the heating device and the return air vent; the skirting board heater also includes a volute and a volute tongue disposed inside the housing and surrounding the cross-flow fan, the volute being located on the front side of the volute tongue.

[0017] Optionally, the splitting structure has a splitting surface perpendicular to the front-back direction of the skirting board heater located on the front side of the rotation axis of the cross-flow fan, and the ratio of the distance between the splitting surface and the rotation axis to the diameter of the cross-flow fan is selected from any value from 0.1 to 0.3.

[0018] Optionally, the skirting board heater further includes an air duct for accommodating the heating device. The top end of the air duct is connected to the front air outlet and the rear air outlet, respectively. The bottom end of the air duct has gaps between the volute and the volute tongue, respectively, so that the air blown out by the fan siphons a portion of the air through the gaps.

[0019] Optionally, a portion of the return air vent is formed on the rear side of the housing, and another portion of the return air vent is formed on the bottom side of the housing.

[0020] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this utility model, by setting a front air outlet and a rear air outlet on the top of the casing, and setting a flow-dividing structure between the front and rear air outlets, the air can be divided into two parts when flowing through the flow-dividing structure, thus causing different wind speeds to be blown out from the front and rear air outlets. Since the lower the flow speed of hot air, the higher the temperature, the better the user's heating experience when it is blown towards the user. Therefore, when using it, the user can face the side with the lower wind speed towards themselves to obtain a better heating experience. At the same time, the hot air with a higher flow speed on the other side of the baseboard heater can quickly exchange heat with the cold air in the room, allowing the room to heat up quickly. Therefore, the baseboard heater of this utility model can achieve the effect of warming the person first and then warming the room, which can be described as killing two birds with one stone.

[0021] Furthermore, since the airflow from a cross-flow fan typically tilts towards the direction of the volute tongue, this invention, by setting the fan as a cross-flow fan and placing the volute in front of the volute tongue, causes the airflow to be directed upwards while also being biased backwards. This results in a higher airflow at the rear outlet and a lower airflow at the front outlet. Moreover, the diversion structure intercepts some of the airflow destined for the rear outlet, directing the airflow that should be flowing towards the rear outlet to the front outlet. Additionally, because the airflow blows upwards and backwards, it primarily flows through the lower rear part of the heating device. This results in the heat being quickly carried away from the lower rear of the heating device, leading to a lower temperature and less heat absorption in the airflow from the rear outlet; conversely, the heat being slowly carried away from the upper front of the heating device, leading to a higher temperature and more heat absorption in the airflow from the front outlet.

[0022] Other beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purpose, features and advantages of this utility model. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, some embodiments of this utility model will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar components or parts in different drawings; the drawings of this utility model are not necessarily drawn to scale. In the drawings:

[0024] Figure 1 This is a first perspective view of the skirting board heater in some embodiments of this utility model;

[0025] Figure 2 This is a second perspective view of the skirting board heater in some embodiments of this utility model;

[0026] Figure 3 This is a front view of the skirting board heater in some embodiments of this utility model;

[0027] Figure 4 yes Figure 3 Isometric side sectional view of the center skirting board heater along the AA direction;

[0028] Figure 5 yes Figure 3 A plan sectional view of the baseboard heater along the AA direction;

[0029] Figure 6 yes Figure 5 The baseboard heater now features a marked view.

[0030] Explanation of reference numerals in the attached figures:

[0031] 001. Baseboard heater;

[0032] 100. Housing; 101. Front air outlet; 102. Rear air outlet; 103. Return air outlet;

[0033] 200. Heating device;

[0034] 310. Fan; 311. Rotating shaft; 321. Volute; 322. Volute tongue;

[0035] 400. Flow splitting structure; 410. V-shaped section; 420. Connecting section; 401. Mid-section surface;

[0036] 500, air duct; 501, gap. Detailed Implementation

[0037] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0038] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "top," "bottom," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the corresponding device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. For example, unless otherwise specified, the terms "installation," "connection," "joining," and "fixing" can specifically refer to any feasible connection form such as bolt connection, screw connection, welding, insertion, riveting, fusion welding, or snap-fit.

[0040] Furthermore, it should be noted that in the description of this utility model, mm represents millimeter, cm represents centimeter, and m represents meter.

[0041] Furthermore, it should be noted that in the description of this utility model, the terms "coldness" and "heat" are two descriptions of the same physical state. That is, the higher the "coldness" of a target object (e.g., evaporator, air, condenser, etc.), the lower its "heat," and vice versa. A target object absorbs "coldness" while releasing "heat," and releases "coldness" while absorbing "heat." A target object retains "coldness" or "heat" to maintain its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon; that is, a target object (e.g., evaporator) absorbs heat while refrigerating.

[0042] like Figures 1 to 4 As shown, in some embodiments of this utility model, the skirting board heater 001 includes a housing 100, a heating device 200, a fan 310, and a distribution structure 400.

[0043] The top of the housing 100 is provided with a front air outlet 101 and a rear air outlet 102, and the bottom of the housing 100 is provided with a return air outlet 103.

[0044] The heating device 200 is disposed inside the housing 100 and is used to heat the air inside the housing 100. The heating device 200 may include fins and an electric heating wire or electric heating tube thermally connected to the fins.

[0045] The fan 310 is installed inside the housing 100 and is used to drive air into the housing 100 through the return air port 103, and after flowing through the heating device 200, it flows out of the housing 100 through the front air outlet 101 and the rear air outlet 102.

[0046] The diversion structure 400 is disposed inside the housing 100 and located between the front air outlet 101 and the rear air outlet 102, so that the air speeds blown out from the front air outlet 101 and the rear air outlet 102 are different.

[0047] Those skilled in the art will understand that by providing a front air outlet 101 and a rear air outlet 102 on the top of the casing 100, and a flow-dividing structure 400 between the front air outlet 101 and the rear air outlet 102, the air is divided into two parts when flowing through the flow-dividing structure 400, resulting in different air velocities from the front air outlet 101 and the rear air outlet 102. Since the lower the air velocity, the higher the temperature, and the better the user's heating experience when the air is blown towards them, the user can face the side with the lower air velocity to obtain a better heating experience. Simultaneously, the higher-velocity hot air on the other side of the baseboard heater 001 can quickly exchange heat with the cold air in the room, causing the room to heat up rapidly. Therefore, the baseboard heater 001 of this invention can achieve the effect of warming the person first and then the room, achieving two benefits at once.

[0048] Furthermore, the airflow distribution structure 400 is configured such that the air velocity blowing out from the front air outlet 101 is less than the air velocity blowing out from the rear air outlet 102, so that the temperature of the air blowing out from the front air outlet 101 is higher than the temperature of the air blowing out from the rear air outlet 102. Thus, when the user is located in front of the baseboard heater 001, the baseboard heater 001 can provide the user with a comfortable heating effect through the front air outlet 101.

[0049] Furthermore, the flow splitting structure 400 is configured such that the ratio of the air velocity blown from the front air outlet 101 to the air velocity blown from the rear air outlet 102 is any value selected from 1 / 4 to 2 / 3.

[0050] The ratio of the wind speed blown out from the front air outlet 101 to the wind speed blown out from the rear air outlet 102 can be any feasible value such as 1 / 4, 2 / 5, 3 / 7, 2 / 3, etc.

[0051] like Figure 4 and Figure 5As shown, in some embodiments of this utility model, the diversion structure 400 extends along the left-right direction of the baseboard heater 001. Furthermore, the horizontal cross-section of the diversion structure 400 gradually decreases from top to bottom, so that the cross-section of the diversion structure 400 perpendicular to the left-right direction is conical or trapezoidal.

[0052] like Figure 5 As shown, in some embodiments of this utility model, the diversion structure 400 includes a V-shaped portion 410 and a connecting portion 420 located on the front and rear sides of the V-shaped portion 410. The diversion structure 400 is fixedly connected to the housing 100 or integrally formed through the connecting portion 420.

[0053] from Figure 4 and Figure 5 As can be seen, the connecting part 420 is a strip-shaped structure, and the connecting part 420 and the housing 100 can be fixed together by any feasible method such as screw connection, welding, or snap-fit.

[0054] like Figure 6 As shown, in some embodiments of this utility model, the bending angle β of the V-shaped portion 410 is selected from any value between 85° and 110°. Specifically, the bending angle β can be any feasible value such as 85°, 84°, 90°, 93°, 95.5°, 100°, 105°, 110°, etc.

[0055] like Figure 5 and Figure 6 As shown, in some embodiments of this utility model, the bottom end of the V-shaped portion 410 is higher than the bottom ends of the front air outlet 101 and the rear air outlet 102, respectively.

[0056] like Figures 4 to 6 As shown, in some embodiments of this utility model, the fan 310 is a cross-flow fan disposed between the heating device 200 and the return air vent 103. Furthermore, the baseboard heater 001 also includes a volute 321 and a volute tongue 322 located within the housing 100 and surrounding the cross-flow fan, with the volute 321 located in front of the volute tongue 322.

[0057] Those skilled in the art will understand that, since the airflow from a cross-flow fan typically tilts towards the direction of the volute tongue 322, this invention, by setting the fan 310 as a cross-flow fan and placing the volute 321 in front of the volute tongue 322, causes the airflow from the fan 310 to be directed upwards while also being tilted backwards. This results in the rear outlet 102 receiving more airflow and the front outlet 101 receiving less. Furthermore, the diversion structure 400 intercepts a portion of the airflow destined for the rear outlet 102, directing the airflow that should be directed towards the rear outlet 102 to the front outlet 101. Moreover, because the airflow blows upwards and backwards, it primarily flows through the lower rear portion of the heating device 200. This results in the lower rear portion of the heating device 200 (e.g., Figure 6 The heat in the area below the dotted line on the right of the central heating device 200 is quickly carried away, resulting in a lower temperature. The airflow blowing out from the rear air outlet 102 absorbs less heat and also has a lower temperature; the heat in the upper front part of the heating device 200 (such as...) Figure 6 The heat in the area above the left of the 200-dot dot in the heating device is slowly carried away, resulting in a higher temperature. The airflow blown out from the front air outlet 101 absorbs more heat and also has a higher temperature.

[0058] In addition, in other embodiments of this utility model, those skilled in the art can also set the fan 310 in any other feasible form as needed, such as an axial flow fan, a mixed flow fan, etc.

[0059] like Figure 6 As shown, in some embodiments of this utility model, the dividing surface 401 of the flow-dividing structure 400, which is perpendicular to the front-rear direction of the skirting board heater 001, is located on the front side of the rotation axis 311 of the cross-flow fan, and the ratio of the distance H between the dividing surface 401 and the rotation axis 311 to the diameter D of the cross-flow fan is selected from any value from 0.1 to 0.3. Specifically, this ratio can be any feasible value such as 0.1, 0.12, 0.135, 0.15, 0.21, 0.25, 0.3, etc.

[0060] Furthermore, the ratio of the distance H between the split plane 401 and the rotation axis 311 to the diameter D of the cross-flow fan is selected from any value between 0.14 and 0.18. Specifically, this ratio can be any feasible value such as 0.14, 0.155, 0.16, 0.17, 0.175, 0.18, etc.

[0061] Those skilled in the art will understand that by setting the ratio of the distance H between the splitting surface 401 and the rotation axis 311 to the diameter D of the cross-flow fan to the aforementioned value, the airflow blown out by the fan 310 can be directed by the splitting structure 400 to the front air outlet 101 and the rear air outlet 102 respectively according to the proportions described above.

[0062] like Figures 4 to 6 As shown, in some embodiments of this utility model, the baseboard heater 001 further includes an air duct 500 for accommodating the heating device 200. The top end of the air duct 500 is connected to the front air outlet 101 and the rear air outlet 102 respectively, and the bottom end of the air duct 500 forms gaps 501 between the volute 321 and the volute tongue 322 respectively, so that the air blown by the fan 310 siphons a portion of the air through the gaps 501.

[0063] Those skilled in the art will understand that by causing the fan 310 to blow out a portion of the air, the airflow of the baseboard heater 001 is increased.

[0064] Go back and refer to Figure 2 In some embodiments of this utility model, a portion of the return air inlet 103 is formed on the rear side of the housing 100, and another portion of the return air inlet 103 is formed on the bottom side of the housing 100, so as to increase the air intake area and reduce the wind resistance when the fan 310 draws air.

[0065] Based on the foregoing description, those skilled in the art will understand that the skirting board heater 001 of this utility model not only improves the user experience, but also ensures the heating effect of the skirting board heater 001 on the room.

[0066] The technical solution of this utility model has been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is not limited to these specific embodiments. Without departing from the technical principles of this utility model, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to the relevant technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of this utility model will fall within the protection scope of this utility model.

[0067] Finally, it should be noted that in this invention, the term "connection" refers to fluid communication, allowing fluid (e.g., air, liquid) to flow between two interconnected entities. Furthermore, this "connection" can be either a leak-free flow of fluid between two interconnected entities, or a flow with slight leakage between two interconnected entities.

Claims

1. A skirting heater, characterised in that, include: The casing has a front air outlet and a rear air outlet on its top, and a return air outlet on its bottom. A heating device is installed inside the housing for heating the air inside the housing; A fan is installed inside the housing to drive air into the housing through the return air inlet, and after flowing through the heating device, it flows out of the housing through the front air outlet and the rear air outlet. A flow splitting structure is provided inside the housing and located between the front air outlet and the rear air outlet, so that the air speeds blown out from the front air outlet and the rear air outlet are different.

2. The skirting board heater according to claim 1, characterized in that, The airflow splitting structure is configured such that the air velocity blowing out from the front air outlet is less than the air velocity blowing out from the rear air outlet, so that the temperature of the air blowing out from the front air outlet is higher than the temperature of the air blowing out from the rear air outlet.

3. The skirting board heater according to claim 1, characterized in that, The airflow splitting structure is configured such that the ratio of the air velocity blowing from the front air outlet to the air velocity blowing from the rear air outlet is any value selected from 1 / 4 to 2 / 3.

4. The skirting board heater according to claim 1, characterized in that, The diversion structure extends along the left and right directions of the baseboard heater; The horizontal cross-section of the diversion structure gradually decreases from top to bottom, so that the cross-section of the diversion structure perpendicular to the left and right directions is conical or trapezoidal.

5. The baseboard heater according to claim 4, characterized in that, The diversion structure includes a V-shaped portion and connecting portions located on the front and rear sides of the V-shaped portion. The diversion structure is fixedly connected to the housing or integrally formed through the connecting portions.

6. The skirting heater of claim 5, wherein The bending angle of the V-shape is selected from any value between 85° and 110°; and / or, The bottom of the V-shaped portion is higher than the bottom of the front air outlet and the rear air outlet, respectively.

7. The skirting board heater according to any one of claims 1 to 6, characterized in that, The fan is a cross-flow fan installed between the heating device and the return air inlet; The baseboard heater also includes a volute and a volute tongue located inside the housing and surrounding the cross-flow fan, with the volute located on the front side of the volute tongue.

8. The baseboard heater according to claim 7, characterized in that, The splitting structure has a splitting surface perpendicular to the front-back direction of the skirting board heater located on the front side of the rotation axis of the cross-flow fan, and the ratio of the distance between the splitting surface and the rotation axis to the diameter of the cross-flow fan is selected from any value between 0.1 and 0.

3.

9. The baseboard heater according to claim 7, characterized in that, The baseboard heater also includes an air duct for housing the heating device. The top of the air duct is connected to the front air outlet and the rear air outlet respectively, and the bottom of the air duct is formed with gaps between the volute and the volute tongue respectively, so that the air blown out by the fan can siphon a portion of the air through the gaps.

10. The skirting board heater according to claim 9, characterized in that, A part of the return air inlet is formed on the back side of the casing, and another part of the return air inlet is formed on the bottom side of the casing.