Portable electric heater with multi-channel heat dissipation
Patent Information
- Application Number
- CN202522596747.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-08
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-08
AI Technical Summary
传统电暖气的核心制热部件存在结构设计缺陷，导致热量产生与传递效率低下，传统电暖气多采用镍铬合金电阻丝作为发热体，热效率仅为70%-80%，大量电能转化为无用热量散失，制热能耗高；同时电阻丝发热时存在“热惯性”，通电后需5-10分钟才能达到额定温度，用户需长时间等待，无法实现快速取暖；断电后余热持续释放，易造成能量浪费，且无法及时停止制热，因此，需对上述问题进行解决
[0010]与现有技术相比，本实用新型的有益效果是：在本实用新型中，通过温控模块与温度调节旋钮的配合，能够实现温度精准调控，适配不同环境温度与用户取暖需求；通过辐射板和风机的配合，能够吸收风机吹送的空气热量与PTC陶瓷电加热器的辐射热量，通过热传导与热辐射双重方式释放热量，增强散热效果；通过电暖部件的设置，能够为多通道散热提供持续、可控的热源，适配不同取暖场景的温度需求，解决了传统电暖气制热效率低、温度控制精度差的问题。
Smart Images
Figure CN224905066U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric heater technology, and in particular to a portable electric heater with multi-channel heat dissipation. Background Technology
[0002] In the field of portable heating devices, electric heaters need to meet the core requirements of "rapid heating, precise temperature control, continuous heating, and adaptability to multiple scenarios". Especially for scenarios such as temporary indoor heating, office heating, and small space heating, the requirements for heating efficiency and temperature controllability are extremely high. Traditional electric heaters suffer from structural design flaws in their core heating components, resulting in low efficiency in heat generation and transfer. Traditional electric heaters often use nickel-chromium alloy resistance wires as heating elements, with a thermal efficiency of only 70%-80%. A significant amount of electrical energy is converted into wasted heat, leading to high energy consumption. Furthermore, the resistance wires exhibit thermal inertia, requiring 5-10 minutes to reach the rated temperature after being powered on, forcing users to wait and hindering rapid heating. After power is cut off, residual heat continues to be released, causing energy waste, and the heater cannot be stopped promptly. Therefore, these problems need to be addressed. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a portable electric heater with multi-channel heat dissipation.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a portable electric heater with multi-channel heat dissipation, comprising an outer shell, support shafts fixedly connected to both sides of the bottom of the outer shell, support seats rotatably mounted on the two support shafts, a tightening block screwed onto one side of the support seat, a protective net embedded at one end of the outer shell, a handle hinged to the top of the outer shell, a heat insulation plate fixedly connected inside the outer shell, and an installation cavity and a gas flow cavity formed inside the outer shell through the heat insulation plate, wherein an electric heating component is disposed in the gas flow cavity.
[0005] Preferably, a duct is fixedly connected inside the mounting cavity, one end of the duct extends to the outer wall of the outer shell, a fan is installed inside the duct, a filter is fixedly connected to one end of the duct, a radiant plate is fixedly connected to the other end of the duct, and a heat insulation plate sidewall is fixedly connected to one side of the radiant plate.
[0006] Preferably, the electric heating component includes a PTC ceramic electric heater heating element disposed on the other side of the gas flow cavity and a clamping block fixed to the side wall of the heat insulation plate by bolts. The clamping block abuts against the side wall of the PTC ceramic electric heater heating element on both sides, and a temperature control module is provided on the PTC ceramic electric heater heating element.
[0007] Preferably, the gas flow chamber has connection holes on both sides, a fan is installed at one end of the connection hole, and a fixed shaft is fixedly connected to the other end of the connection hole. A rotating guide plate is rotatably mounted on the fixed shaft.
[0008] Preferably, one end of the bottom of the housing has a cable outlet, and the other end of the bottom of the housing has a socket for connecting to a power source. The other end of the cable outlet extends into the mounting cavity, and the inner walls of the mounting cavity and the gas flow cavity are fitted with heat insulation pads.
[0009] Preferably, a temperature adjustment knob is rotatably provided on one side of the outer casing, and the temperature adjustment knob is electrically connected to the temperature control module.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, the temperature control module and the temperature adjustment knob work together to achieve precise temperature control, adapting to different ambient temperatures and user heating needs; the radiant panel and the fan work together to absorb the heat from the air blown by the fan and the radiant heat from the PTC ceramic electric heater, releasing heat through both heat conduction and heat radiation, thus enhancing the heat dissipation effect; the electric heating components provide a continuous and controllable heat source for multi-channel heat dissipation, adapting to the temperature requirements of different heating scenarios, and solving the problems of low heating efficiency and poor temperature control accuracy of traditional electric heaters. Attached Figure Description
[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall first-view structure proposed in this utility model; Figure 2 This is a schematic diagram of the internal second-view structure proposed in this utility model; Figure 3 This is a schematic diagram of the gas flow cavity structure proposed in this utility model; Figure 4 This is a schematic diagram of the electric heating component structure proposed in this utility model; Figure 5 This is a schematic diagram of the structure of some parts proposed in this utility model.
[0012] The following are the components listed in the diagram: 1. Outer shell; 2. Handle; 3. Protective net; 4. Support base; 5. Temperature adjustment knob; 6. Rotary guide plate; 7. Fan; 8. Filter screen; 9. Blower; 10. Socket; 11. Radiant panel; 12. Heat insulation board; 13. PTC ceramic electric heater heating element; 14. Clamping block; 15. Cable outlet; 16. Insulation pad. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0014] Example: See Figures 1 to 5 This utility model discloses a portable electric heater with multi-channel heat dissipation, comprising a shell 1, with support shafts fixed to both sides of the bottom of the shell 1, and support seats 4 rotatably mounted on the two support shafts. The support seats 4 facilitate the stable placement of the electric heater on the ground or tabletop, and the tilt angle of the shell 1 can be adjusted by rotation to adapt to heat dissipation needs in different directions. A tightening block is screwed onto one side of the support seat 4, and a protective net 3 is embedded at one end of the shell 1 to block foreign objects and avoid safety hazards. A handle 2 is hinged to the top of the shell 1, which facilitates the user to carry the device and adjust its position to suit different usage scenarios. A heat insulation plate 12 is fixed inside the shell 1, and an installation cavity and a gas circulation cavity are formed inside the shell 1 through the heat insulation plate 12. The electric heating component is installed in the gas circulation cavity.
[0015] In this invention, a duct is fixedly connected inside the mounting cavity, with one end extending to the outer wall of the outer casing 1. A fan 9 is installed inside the duct, a filter 8 is fixedly connected to one end of the duct, and a radiant plate 11 is fixedly connected to the other end. A heat insulation plate 12 is fixedly connected to one side of the radiant plate 11. The fan 9 facilitates heat exchange with the radiant plate 11 to form a hot airflow, achieving forced convection heat dissipation and improving heating efficiency. The electric heating component includes a PTC ceramic electric heater heating element 13 located on the other side of the gas flow cavity and a clamping block 14 fixed to the side wall of the heat insulation plate 12 by bolts. The clamping block 14 abuts against the side wall of the PTC ceramic electric heater heating element 13 on both sides. A temperature control module is provided on the PTC ceramic electric heater heating element 13. The electric heating component is easily and precisely fixed to ensure heat dissipation efficiency. The temperature control module enables automatic temperature adjustment and overload protection, providing continuous and controllable heat dissipation for multi-channel heat dissipation. Heat source; Connection holes are provided on both sides of the gas flow chamber. A fan 7 is installed at one end of the connection hole, and a fixed shaft is fixed to the other end of the connection hole. A rotating guide plate 6 is rotatably installed on the fixed shaft. The fan 7 facilitates the acceleration of the hot air circulation in the gas flow chamber and pushes the hot air through the connection hole to be discharged. A cable outlet 15 is provided at one end of the bottom of the outer shell 1, and a socket 10 for connecting to the power supply is provided at the other end of the bottom of the outer shell 1. The other end of the cable outlet 15 passes through the mounting cavity. The inner walls of the mounting cavity and the gas flow chamber are fitted with heat insulation pads 16. The heat insulation pads 16 facilitate the enhancement of the cavity's heat insulation performance, reduce heat conduction to the outer shell 1, and prevent the outer shell 1 from overheating and burning the user. A temperature adjustment knob 5 is rotatably provided on one side of the outer shell 1. The temperature adjustment knob 5 is electrically connected to the temperature control module. The temperature adjustment knob 5 facilitates the control of the power output of the PTC ceramic electric heater heating element 13 and achieves precise temperature control.
[0016] Working Principle: When using this invention, first connect the electrical components to the power source via the socket 10. Then, the user can easily carry the electric heater to the target location using the folding handle 2 on the top of the outer casing 1. Unfold the support base 4, and adjust the tilt angle of the outer casing 1 by rotating the support shaft according to the heating direction requirements. Tighten the tightening block to fix the angle, and the bottom anti-slip pad ensures that the device is placed stably without shifting. The folding handle 2 fits snugly against the outer casing 1 without occupying extra space. After powering on, set the target temperature using the temperature adjustment knob 5. The temperature control module activates the PTC ceramic electric heater heating element 13 according to the set temperature, and the heating element heats up rapidly. The thermal efficiency is over 90%; the clamping blocks 14 tightly abut against the heating element from both sides, ensuring it is fixed in the gas flow cavity without vibration or displacement, while ensuring efficient heat transfer to the heat insulation plate 12 and the gas flow cavity. The heat insulation plate 12 divides the interior of the outer shell 1 into the installation cavity and the gas flow cavity, preventing high temperature conduction to the installation cavity and damage to electrical components; the heat insulation pad 16 attached to the inner wall of the cavity further enhances the heat insulation effect, reduces heat loss, absorbs vibration, and reduces equipment operating noise. Then, the fan 9 in the installation cavity starts synchronously, driving external air to be filtered through the filter screen 8 at one end of the air duct and blown towards the radiation plate 11 at the other end of the air duct; the radiation plate 11 absorbs the fan... The heat from the airflow and the radiant heat from the PTC heating element are released through both heat conduction and radiation, rapidly creating a high-temperature airflow field within the gas flow cavity. The fan 9 then continuously provides power, propelling the hot airflow within the gas flow cavity through the protective mesh 3 at one end of the outer casing 1, forming the main heat dissipation channel. The protective mesh 3 prevents foreign objects from entering while ensuring smooth airflow, achieving rapid heating over a wide area. Simultaneously, the fans 7 in the connecting holes on both sides of the gas flow cavity start synchronously, accelerating the circulation of hot air within the cavity and pushing heat to the side channels. Users can manually rotate the guide plate 6 to adjust the angle, precisely controlling the direction of hot airflow discharge for multi-directional, multi-channel heating. The multi-channel heat dissipation system is adaptable to different heating scenarios. Simultaneously, the temperature control module monitors the temperature within the gas flow chamber in real time. When the temperature reaches the set value, it automatically adjusts the power output of the PTC heating element to maintain a constant temperature. If the temperature falls below the set value, the heating element automatically increases its power to ensure heating comfort while avoiding energy waste. Finally, after the power is turned off, the PTC ceramic electric heater heating element 13 stops heating, while the fan 9 and fan 7 continue to run (delayed heat dissipation) to accelerate the removal of residual heat and prevent component aging due to high temperatures. The temperature control module cuts off the circuit to ensure the device's safety during power outages. This concludes the use of this portable electric heater with multi-channel heat dissipation.
[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A portable electric heater with multi-channel heat dissipation, comprising a casing (1), characterized in that: Support shafts are fixed to both sides of the bottom of the outer shell (1), and support seats (4) are rotatably provided on the two support shafts. A tightening block is screwed to one side of the support seat (4). A protective net (3) is embedded at one end of the outer shell (1). A handle (2) is hinged to the top of the outer shell (1). A heat insulation plate (12) is fixed inside the outer shell (1). An installation cavity and a gas flow cavity are formed inside the outer shell (1) through the heat insulation plate (12). An electric heating component is provided in the gas flow cavity.
2. A portable electric heater with multi-channel heat dissipation according to claim 1, characterized in that: A duct is fixedly connected inside the installation cavity. One end of the duct extends to the outer wall of the outer shell (1). A fan (9) is installed inside the duct. A filter screen (8) is fixedly connected to one end of the duct. A radiant plate (11) is fixedly connected to the other end of the duct. A heat insulation plate (12) is fixedly connected to one side of the radiant plate (11).
3. A portable electric heater with multi-channel heat dissipation according to claim 1, characterized in that: The electric heating component includes a PTC ceramic electric heater heating element (13) located on the other side of the gas flow cavity and a clamping block (14) fixed to the side wall of the heat insulation plate (12) by bolts. The clamping block (14) abuts against the side wall of the PTC ceramic electric heater heating element (13) on both sides. The PTC ceramic electric heater heating element (13) is provided with a temperature control module.
4. A portable electric heater with multi-channel heat dissipation according to claim 3, characterized in that: The gas flow chamber has connection holes on both sides. A fan (7) is installed at one end of the connection hole, and a fixed shaft is fixedly connected to the other end of the connection hole. A rotating guide plate (6) is rotatably mounted on the fixed shaft.
5. A portable electric heater with multi-channel heat dissipation according to claim 4, characterized in that: The bottom of the outer casing (1) is provided with a cable outlet (15) at one end and a power supply socket (10) at the other end. The cable outlet (15) extends into the mounting cavity, and the inner walls of the mounting cavity and the gas flow cavity are fitted with heat insulation pads (16).
6. A portable electric heater with multi-channel heat dissipation according to claim 1, characterized in that: A temperature adjustment knob (5) is provided on one side of the outer casing (1), and the temperature adjustment knob (5) is electrically connected to the temperature control module.