PTC heater of integrated fan

Abstract

The utility model provides an integrated fan PTC heater, which relates to the technical field of heaters, and comprises a fan cover, the fan cover comprises an air inlet and an air outlet, a fan rotating wheel is rotatably connected in the fan cover, a heater is arranged at the air outlet, the heater comprises a heat dissipation part, the fan rotating wheel rotates to generate wind power, and the wind passes through the heat dissipation part to take out heat. The utility model has the beneficial effects that the fan cover is arranged, the fan rotating wheel is arranged in the fan cover, the fan rotating wheel sucks air from the air inlet of the fan cover and then sends out the air from the air outlet, and the fan cover encloses the sucked air, so that the air can be sent out from the air outlet in a more concentrated manner, and the air passes through the heater after being sent out, so that the heating effect is improved. Therefore, most heat energy generated by the heater can be taken away, and the heat energy can be fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, in particular to an integrated fan PTC heater. Background Art

[0002] PTC heaters are generally used in beverage heating cabinets, distribution cabinets, disinfection cabinets, heaters and other electrical appliances that require heating. They are generally equipped with fans and heating components. After the heating components are heated, the heat is sent out through the wind of the fan. At present, most PTC heaters on the market set the fan and the heating component separately. In this way, the wind force of the fan is relatively discrete, the concentration effect is not good, the heat energy cannot be completely sent out, and it will lead to waste of heat energy.

[0003] The technical content disclosed in the Chinese patent document (Announcement No.: CN207585211U, Patent Name: A New Type of Heating and Cooling Conversion Cabinet) is: a PTC heater and an evaporating fan located in front of the PTC heater are fixed on the top of the heating and cooling chamber, an evaporating plate is provided on the back of the heating and cooling chamber, and the evaporating plate is located below the PTC heater and the evaporating fan. A circulating air path is formed inside the heating and cooling chamber, which flows through the evaporating fan, the PTC heater and the evaporating plate in sequence.

[0004] From the above implementation scheme, it can be seen that the conversion cabinet is provided with a PTC heater and an evaporating fan located in front of the PTC heater. The PTC heater generates heat and then its heat energy is taken out through the fan. When the fan blows, the wind force is discrete, and the heat generated by the PTC heater cannot be taken out in time and effectively, which will cause local heat to be higher and the heat in other places to be uneven, thus causing waste of heat energy. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a hood with a fan wheel inside. The fan wheel draws air in from the air inlet of the hood and then sends the air out from the air outlet. Since the hood surrounds the drawn air, the air can be sent out from the air outlet in a more concentrated manner. After being sent out, the air passes through the heater, so it can take away most of the heat energy generated by the heater, thereby making full use of the heat energy.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The integrated fan PTC heater comprises a hood, which comprises an air inlet and an air outlet. A fan wheel is rotatably connected inside the hood. A heater is arranged at the air outlet. The heater comprises a heat dissipation component. The fan wheel rotates to generate wind force, and the wind passes through the heat dissipation component to bring out the heat.

[0008] Furthermore, the fan impeller includes impeller blades, and both ends of the impeller blades are connected to impeller side plates.

[0009] Furthermore, the cross-section of the impeller blades is arc-shaped, the impeller side plates are circular, the impeller blades are distributed along the circumference of the impeller side plates, and the inner arcs of the impeller blades are arranged in the same direction. When the fan impeller rotates, the impeller blades push the air in the same direction to make the air flow.

[0010] Furthermore, an air guide plate is provided on one side of the air hood, the air outlet is located between the air guide plate and the bottom surface of the air hood, and the heater is located at the air outlet.

[0011] Furthermore, the wind shield is provided with locking holes at both ends, and the locking holes include a first locking slot and a second locking slot that are connected, and the width of the first locking slot is smaller than that of the second locking slot.

[0012] Furthermore, the heater includes a heating strip, the heating strip is connected to a heat dissipation component, and the heat dissipation component is provided with heat dissipation holes.

[0013] Furthermore, the heat dissipation component is a heat sink, the heat sink is plugged into the heating strip, and a heat dissipation hole is formed between two adjacent heat sinks.

[0014] Furthermore, the heat dissipation component is a heat dissipation frame and a wave plate arranged in the heat dissipation frame, the heat dissipation frame is connected to the heating strip, and a heat dissipation hole is formed between the wave plate and the heat dissipation frame.

[0015] Furthermore, side sleeves are inserted at both ends of the heating strip, the side sleeves are connected to the heater connecting plate, and the heater connecting plate is connected to the air cover.

[0016] Furthermore, one end of the wind cover is connected to a motor, and the motor is connected to a fan wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. A hood is provided, and a fan wheel is provided inside the hood. The fan wheel draws air into the air inlet of the hood and then sends the air out from the air outlet. Since the hood surrounds the drawn air, the air can be sent out from the air outlet in a more concentrated manner. After being sent out, the air passes through the heater, so it can take away most of the heat energy generated by the heater, so that the heat energy can be fully utilized.

[0019] 2. The cross-section of the impeller blades uses an arc-shaped design, which can better hold and push the air, allowing the air in the local space to flow better.

[0020] 3. The heater generates heat using a heating strip, and a heat dissipation component is provided to conduct the heat of the heating strip. The heat dissipation component is provided with heat dissipation holes, and the air passes through the heat dissipation holes to quickly take away the heat, so that the heat energy can be quickly and fully transmitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the integrated fan PTC heater of the first embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of an explosion of an integrated fan PTC heater according to the first embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the fan cover, motor and fan wheel of an embodiment of the utility model;

[0025] Figure 4 This is a schematic diagram of an explosion of a heater according to the first embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the overall structure of the integrated fan PTC heater of the second embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the explosion of the heater of the second embodiment of the utility model;

[0028] Figure 7 This is a schematic diagram of the structure of a heater according to the second embodiment of the present utility model.

[0029] In the figure: 1. wind cover; 101. positioning hole; 1011. first slot; 1012. first slot; 102. air guide plate; 2. motor; 3. fan rotor; 301. rotor side plate; 302. rotor blade; 4. heater; 401. heating strip; 402. side cover; 403. heater connecting plate; 404. heat dissipation component; 4041. heat sink; 4042. heat dissipation frame; 4043. corrugated plate. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0031] like Figures 1 to 7As shown, the integrated fan PTC heater is used in electrical appliances that need heating, such as beverage heating cabinets, power distribution cabinets, disinfection cabinets, and heaters, and includes a hood 1. The hood 1 includes an air inlet and an air outlet. The hood 1 is internally connected to a fan impeller 3 for rotation. One end of the hood 1 is connected to a motor 2, and the motor 2 is connected to the fan impeller 3. The fan impeller 3 draws air in from the air inlet of the hood 1 and then sends the air out from the air outlet. Since the hood 1 surrounds the drawn air, the air can be sent out from the air outlet in a more concentrated manner. A heater 4 is provided at the air outlet. The heater 4 includes a heating strip 401, and the heating strip 401 is connected to a heat dissipation component 404. The heat dissipation component 404 is provided with heat dissipation holes. The fan impeller 3 rotates to generate wind force, and the wind passes through the heat dissipation component 404 to bring out the heat, so that the heat energy can be transmitted quickly and fully.

[0032] The fan impeller 3 includes impeller blades 302, both ends of which are connected to the impeller side plates 301. The cross-section of the impeller blades 302 is arc-shaped, the impeller side plates 301 are circular, and the impeller blades 302 are distributed along the circumference of the impeller side plates 301. The inner arcs of the impeller blades 302 are arranged in the same direction. When the fan impeller 3 rotates, the impeller blades 302 push the air in the same direction to make the air flow. The cross-section of the impeller blades 302 uses an arc-shaped design, which can better hold the air and push it, so that the air in the local space flows better.

[0033] An air guide plate 102 is provided on one side of the air hood 1, and the air outlet is located between the air guide plate 102 and the bottom surface of the air hood 1. The heater 4 is located at the air outlet. The air guide plate 102 makes the air outlet larger so that the air can be better diffused from the air outlet.

[0034] Both ends of the air hood 1 are provided with positioning holes 101, and the positioning holes 101 include a first slot 1011 and a second slot 1012 that are connected. The width of the first slot 1011 is smaller than that of the second slot 1012. When the air hood 1 is installed in an electrical appliance that needs to be heated, such as a beverage heating cabinet, a power distribution cabinet, a disinfection cabinet, and a heater, the second slot 1012 can be first connected to the screw head so that the screw head is inserted into the air hood 1 from the second slot 1012, and then the air hood 1 is rotated so that the screw head is rotated to the first slot 1011, and then the screw is tightened to the cabinet body to fix the air hood 1.

[0035] In the first embodiment, the heat dissipation component 404 is Figure 1 , Figure 2 and Figure 4 As shown, the heat dissipation component 404 is a heat sink 4041, which is plugged into the heating strip 401, and a heat dissipation hole is formed between two adjacent heat sinks 4041. This arrangement has fast heat dissipation and good heat dissipation effect because each heat sink 4041 is in contact with the heating strip 401.

[0036] The heat dissipation component 404 in the second embodiment is Figure 5 , Figure 6 and Figure 7 As shown, the heat dissipation component 404 is a heat dissipation frame 4042 and a wave plate 4043 arranged in the heat dissipation frame 4042. The heat dissipation frame 4042 is connected to the heating strip 401. Heat dissipation holes are formed between the wave plate 4043 and the heat dissipation frame 4042. This arrangement only requires connecting the heat dissipation frame 4042 to the heating strip 401 during installation, and the installation is fast. In addition, the heat dissipation frame 4042 is closely connected to the side of the heating strip 401, so the heat transfer area is large and the heat transfer effect is good.

[0037] Side sleeves 402 are inserted at both ends of the heating strip 401, and the side sleeves 402 connect the electric wires and the heating strip 401, so that the heating strip 401 is powered and heated, and the side sleeves 402 are connected to the heater connecting plate 403, and the heater connecting plate 403 is connected to the air hood 1, so that the heater 4 and the air hood 1 are connected as one, which is convenient for users to install and use.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Integrated fan PTC heater, characterized in that: The wind hood (1) comprises an air inlet and an air outlet. A fan wheel (3) is rotatably connected inside the wind hood (1). A heater (4) is provided at the air outlet. The heater (4) comprises a heat dissipation component (404). The fan wheel (3) rotates to generate wind force. The wind passes through the heat dissipation component (404) to remove heat.

2. The integrated fan PTC heater according to claim 1, characterized in that: The fan impeller (3) comprises impeller blades (302), and both ends of the impeller blades (302) are connected to impeller side plates (301).

3. The integrated fan PTC heater according to claim 2, characterized in that: The cross section of the runner blades (302) is arc-shaped, the runner side plate (301) is circular, the runner blades (302) are distributed along the circumference of the runner side plate (301), the inner arcs of the runner blades (302) are arranged in the same direction, and when the fan wheel (3) rotates, the runner blades (302) move air in the same direction to make the air flow.

4. The integrated fan PTC heater according to claim 3, characterized in that: An air guide plate (102) is provided on one side of the air hood (1); an air outlet is located between the air guide plate (102) and the bottom surface of the air hood (1); and a heater (4) is located at the air outlet.

5. The integrated fan PTC heater according to claim 4, characterized in that: The wind shield (1) is provided with locking holes (101) at both ends, the locking hole (101) comprising a first locking slot (1011) and a second locking slot (1012) which are in communication, and the width of the first locking slot (1011) is smaller than that of the second locking slot (1012).

6. The integrated fan PTC heater according to any one of claims 1 to 5, characterized in that: The heater (4) comprises a heating strip (401), the heating strip (401) is connected to a heat dissipation component (404), and the heat dissipation component (404) is provided with heat dissipation holes.

7. The integrated fan PTC heater according to claim 6, characterized in that: The heat dissipation component (404) is a heat sink (4041), the heat sink (4041) is plugged into the heating strip (401), and a heat dissipation hole is formed between two adjacent heat sinks (4041).

8. The integrated fan PTC heater according to claim 6, characterized in that: The heat dissipation component (404) is a heat dissipation frame (4042) and a wave plate (4043) arranged in the heat dissipation frame (4042); the heat dissipation frame (4042) is connected to the heating strip (401); and a heat dissipation hole is formed between the wave plate (4043) and the heat dissipation frame (4042).

9. The integrated fan PTC heater according to claim 7 or 8, characterized in that: The heating strip (401) has side sleeves (402) inserted at both ends, the side sleeves (402) are connected to a heater connection plate (403), and the heater connection plate (403) is connected to the air hood (1).

10. The integrated fan PTC heater according to any one of claims 1 to 5, 7 to 8, characterized in that: One end of the wind cover (1) is connected to the motor (2), and the motor (2) is connected to the fan impeller (3).

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