Novel PTC heating core
By providing components with mechanical connection and driving relationships in the new PTC heating core, the main body of the PTC heating core can be easily removed from the shell, solving the problem of low maintenance efficiency and improving the heat transfer efficiency through the thermal conductivity layer.
Patent Information
- Application Number
- CN202421912125.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-08
AI Technical Summary
When used, the existing new PTC heating core is not convenient to remove the PTC heating core body from the shell, affecting maintenance efficiency.
By setting up a connecting frame, a threaded screw, a drive sleeve, a drive plate, a driven oblique wheel and a drive oblique wheel, the mechanical connection and driving relationship of these components can be easily moved out of the housing.
The convenient maintenance of the PTC heating core body is achieved, the maintenance efficiency is improved, and the thermal conductivity of the shell is improved through the setting of the thermal conductive layer, reducing heat loss.
Smart Images
Figure CN222916219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PTC heating cores, and particularly relates to a new type of PTC heating core. Background Art
[0002] A PTC heating core is an electric heating element composed of a PTC ceramic heating element and an aluminum tube. It has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power-saving electric heater. Its outstanding feature lies in its safety performance. Under any application conditions, it will not produce the surface "reddening" phenomenon of heaters such as electric heating tubes, thus causing safety hazards such as scalding and fire. The principle of the PTC heating core is based on the thermosensitive characteristics of the PTC ceramic material, and its resistivity changes with the temperature, thereby realizing automatic constant temperature control.
[0003] However, when the existing new type of PTC heating core is in use, usually the PTC heating core is fixed inside the housing by screws. However, when the PTC heating core fails, the staff needs external tools to first remove the screws on the housing before the PTC heating core can be taken out of the housing. The operation steps are cumbersome, which has a certain impact on the maintenance efficiency of the PTC heating core. Therefore, a new type of PTC heating core is provided. Content of the Utility Model
[0004] The main purpose of the utility model is to provide a new type of PTC heating core. By setting a connecting frame, a threaded lead screw, a driving sleeve, a driving rod, a driving plate, a driven bevel gear and a driving bevel gear, the utility model solves the problem that when the existing new type of PTC heating core is in use, it is inconvenient to move the PTC heating core body out of the housing, which affects the maintenance efficiency of the PTC heating core.
[0005] The technical solution adopted by the utility model to solve its technical problems is a new type of PTC heating core, which includes a housing, a fixing frame and a PTC heating core body. A handle for driving the driving rod to rotate is inserted outside the fixing frame. A driving bevel gear is fixed to the outside of the driving rod by screws, and a driven bevel gear for driving the threaded lead screw to rotate is meshed and connected to the outside of the driving bevel gear. A driving sleeve connected to the driving plate is threadedly connected to the outside of the threaded lead screw. A connecting frame for fixing the PTC heating core body is fixed to one side of the driving plate by screws. Through holes for transmitting heat outward are formed on the surface of the connecting frame. A heat conduction layer A for transmitting the heat of the PTC heating core body is arranged inside the connecting frame.
[0006] By adopting the above technical solution, when the PTC heating core body fails, turn the handle outside the connecting frame. Subsequently, the handle drives the driving rod to rotate, the driving cam on the driving rod drives the threaded rod on the driven cam to rotate, the driving sleeve outside the threaded rod drives the driving plate to move, and the driving plate drives the PTC heating core body in the connecting frame to move, so that the PTC heating core body in the connecting frame moves out of the housing, facilitating the maintenance of the PTC heating core body.
[0007] Specifically, a heat-conducting layer B for transferring the heat of the PTC heating core body outward is provided on the inner side of the housing, and a heat-conducting layer C for transferring the heat to the outside of the housing is provided outside the heat-conducting layer B.
[0008] By adopting the above technical solution, the heat-conducting layer B and the heat-conducting layer C in the housing improve the heat-conducting performance of the housing, facilitating the transfer of the heat generated by the PTC heating core body to the outside.
[0009] Specifically, a rubber pad for improving the sealing performance between the connecting frame and the housing is bonded to the outside of the connecting frame.
[0010] By adopting the above technical solution, when the connecting frame drives the PTC heating core body into the housing, the rubber pad provided outside the connecting frame is in close contact with the housing, improving the sealing performance at the connection between the connecting frame and the housing.
[0011] Specifically, the inner size of the driving sleeve matches the outer size of the threaded rod.
[0012] By adopting the above technical solution, when the driving sleeve moves outside the threaded rod, the inner side of the driving sleeve fits with the outside of the threaded rod, improving the stability of the driving sleeve moving outside the threaded rod.
[0013] Specifically, the heat-conducting layer B is made of heat-conducting paste, and the heat-conducting layer C is made of heat-conducting silicone tape.
[0014] By adopting the above technical solution, the heat-conducting layer B made of heat-conducting paste and the heat-conducting layer C made of heat-conducting silicone tape facilitate the transfer of the heat generated by the PTC heating core body to the outside.
[0015] The beneficial effects of the present utility model:
[0016] (1) For the novel PTC heating core of the present utility model, when the PTC heating core body fails, turn the handle outside the connecting frame. Subsequently, the handle drives the driving rod to rotate, the driving cam on the driving rod drives the threaded rod on the driven cam to rotate, the driving sleeve outside the threaded rod drives the driving plate to move, and the driving plate drives the PTC heating core body in the connecting frame to move, so that the PTC heating core body in the connecting frame moves out of the housing, facilitating the maintenance of the PTC heating core body.
[0017] (2) In a novel PTC heating core of the present utility model, when the PTC heating core body works, a heat conduction layer A made of thermal conductive silicone grease in the connecting frame transfers the heat generated by the PTC heating core body outward. Then, the heat is transferred to the inside of the housing through the through holes opened on the surface of the connecting frame. Subsequently, a heat conduction layer B made of thermal paste and a heat conduction layer C made of thermal conductive silicone tape in the housing transfer the heat generated by the PTC heating core body to the outside of the housing, thereby facilitating the transfer of the heat generated by the PTC heating core body to the outside of the housing and reducing heat loss. Description of the Drawings
[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.
[0019] Figure 1 is a schematic diagram of the overall structure of a novel PTC heating core of the present utility model;
[0020] Figure 2 is a schematic diagram of the internal structure of a novel PTC heating core of the present utility model;
[0021] Figure 3 is a schematic diagram of the inner side structure of the housing of a novel PTC heating core of the present utility model;
[0022] In the figure: 1, housing; 2, connecting frame; 3, handle; 4, heat conduction layer A; 5, PTC heating core body; 6, drive rod; 7, drive bevel wheel; 8, driven bevel wheel; 9, fixing frame; 10, drive sleeve; 11, drive plate; 12, through hole; 13, heat conduction layer B; 14, heat conduction layer C; 15, threaded lead screw. Detailed Embodiment
[0023] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] For the overhaul of the PTC heating core body 5, as an embodiment of the present utility model, such as Figure 1 , Figure 2 and Figure 3As shown in the figure, a new type of PTC heating core of the present utility model includes a housing 1, a fixing frame 9, and a PTC heating core main body 5. A handle 3 for driving a driving rod 6 to rotate is inserted outside the fixing frame 9. A driving bevel gear 7 is fixed to the outside of the driving rod 6 by screws, and a driven bevel gear 8 that drives a threaded lead screw 15 to rotate is engaged and connected to the outside of the driving bevel gear 7. A driving sleeve 10 connected to a driving plate 11 is threadedly connected to the outside of the threaded lead screw 15. A connecting frame 2 for fixing the PTC heating core main body 5 is fixed to one side of the driving plate 11 by screws. Through holes 12 for transmitting heat outward are formed on the surface of the connecting frame 2. A heat conduction layer A4 for transmitting the heat of the PTC heating core main body 5 is provided inside the connecting frame 2.
[0025] When in use, when a failure occurs in the PTC heating core main body 5, rotate the handle 3 outside the connecting frame 2. Subsequently, the handle 3 drives the driving rod 6 to rotate. The driving bevel gear 7 outside the driving rod 6 drives the threaded lead screw 15 on the driven bevel gear 8 to rotate. The driving sleeve 10 outside the threaded lead screw 15 drives the driving plate 11 to move. The driving plate 11 drives the PTC heating core main body 5 inside the connecting frame 2 to move, so that the PTC heating core main body 5 inside the connecting frame 2 is moved out of the housing 1, thereby facilitating the maintenance and treatment of the PTC heating core main body 5.
[0026] In order to transmit the heat generated by the PTC heating core main body 5 outward, for example, as Figure 3 shown, the present utility model further includes that a heat conduction layer B13 for transmitting the heat of the PTC heating core main body 5 outward is provided inside the housing 1, and a heat conduction layer C14 for transmitting the heat to the outside of the housing 1 is provided outside the heat conduction layer B13.
[0027] When in use, the heat conduction layer B13 and the heat conduction layer C14 inside the housing 1 improve the heat conduction performance of the housing 1, thereby facilitating the transmission of the heat generated by the PTC heating core main body 5 outward.
[0028] In order to improve the sealing performance at the connection between the connecting frame 2 and the housing 1, for example, as Figure 2 shown, the present utility model further includes that a rubber pad 16 for improving the sealing performance between the connecting frame 2 and the housing 1 is adhesively bonded to the outside of the connecting frame 2.
[0029] When in use, when the connecting frame 2 drives the PTC heating core main body 5 into the inside of the housing 1, the rubber pad 16 provided outside the connecting frame 2 is in close contact with the housing 1, thereby improving the sealing performance at the connection between the connecting frame 2 and the housing 1.
[0030] In order to improve the stability of the driving sleeve 10 moving outside the threaded lead screw 15, for example, as Figure 2 shown, the present utility model further includes that the inner size of the driving sleeve 10 matches the outer size of the threaded lead screw 15.
[0031] During use, when the drive sleeve 10 moves outside the threaded lead screw 15, the inner side of the drive sleeve 10 fits with the outside of the threaded lead screw 15, improving the stability of the drive sleeve 10 moving outside the threaded lead screw 15.
[0032] In order to transfer the heat generated by the PTC heating core body 5 to the outside, exemplarily, as Figure 3 shown, the present invention further includes that the heat conduction layer B13 is made of heat conduction paste, and the heat conduction layer C14 is made of heat conduction silicone tape.
[0033] During use, the heat conduction layer B13 made of heat conduction paste and the heat conduction layer C14 made of heat conduction silicone tape facilitate the transfer of the heat generated by the PTC heating core body 5 to the outside.
[0034] When the present invention is in use, when the PTC heating core body 5 fails, turn the handle 3 outside the connecting frame 2, and then the handle 3 drives the drive rod 6 to rotate. The drive cam 7 outside the drive rod 6 drives the threaded lead screw 15 on the driven cam 8 to rotate. The drive sleeve 10 outside the threaded lead screw 15 drives the drive plate 11 to move, and the drive plate 11 drives the PTC heating core body 5 in the connecting frame 2 to move, so that the PTC heating core body 5 in the connecting frame 2 moves out of the housing 1, facilitating the maintenance of the PTC heating core body 5;
[0035] The heat conduction layer B13 and the heat conduction layer C14 in the housing 1 improve the heat conduction performance of the housing 1, facilitating the transfer of the heat generated by the PTC heating core body 5 to the outside;
[0036] When the connecting frame 2 drives the PTC heating core body 5 into the interior of the housing 1, the rubber pad 16 provided outside the connecting frame 2 is in close contact with the housing 1, improving the sealing performance at the connection between the connecting frame 2 and the housing 1;
[0037] During use, when the drive sleeve 10 moves outside the threaded lead screw 15, the inner side of the drive sleeve 10 fits with the outside of the threaded lead screw 15, improving the stability of the drive sleeve 10 moving outside the threaded lead screw 15.
[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.
Claims
1. A new type of PTC heating core, characterized in that: The invention comprises a shell (1), a fixing frame (9) and a PTC heating core body (5); a handle (3) for driving a driving rod (6) to rotate is inserted on the outer side of the fixing frame (9); a driving bevel wheel (7) is fixed to the outer side of the driving rod (6) by screws, and the driving bevel wheel (7) is meshed with a driven bevel wheel (8) for driving a threaded screw (15) to rotate; the threaded screw (15) is threadedly connected to a driving sleeve (10) connected to a driving plate (11) on the outer side; a connecting frame (2) for fixing the PTC heating core body (5) is screwed to one side of the driving plate (11); a through hole (12) for transferring heat to the outside is provided on the surface of the connecting frame (2); and a heat-conducting layer A (4) for transferring heat from the PTC heating core body (5) is provided on the inner side of the connecting frame (2).
2. A novel PTC heating core according to claim 1, characterized in that: A heat-conducting layer B (13) is arranged inside the shell (1) to transfer heat from the PTC heating core body (5) to the outside, and a heat-conducting layer C (14) is arranged outside the heat-conducting layer B (13) to transfer heat to the outside of the shell (1).
3. A novel PTC heating core according to claim 1, characterized in that: A rubber pad (16) is bonded to the outside of the connecting frame (2) to improve the sealing performance between the connecting frame (2) and the housing (1).
4. A novel PTC heating core according to claim 1, characterized in that: The inner size of the driving sleeve (10) matches the outer size of the threaded screw (15).
5. A novel PTC heating core according to claim 2, characterized in that: The heat-conducting layer B (13) is made of heat-conducting paste, and the heat-conducting layer C (14) is made of heat-conducting silicone cloth.