PTC (Positive Temperature Coefficient) heating module for warmer

Abstract

The PTC heating module comprises a heating module upper cover, a heating module lower cover and a PTC heating assembly located between the heating module upper cover and the heating module lower cover, the heating module upper cover and the heating module lower cover are fixed into an integrated structure through screws, and the PTC heating assembly is installed in a containing groove in the bottom of the heating module lower cover. The PTC heating assembly comprises a plurality of electric heating pieces which are parallel to one another, heat conducting pieces are arranged on one sides of the electric heating pieces, and heating plates used for increasing the heat radiation area are fixedly connected between the adjacent electric heating pieces and the heat conducting pieces. The air cavity used for storing air is formed between the heating module upper cover and the heating module lower cover, the size of the air cavity is gradually narrowed, when airflow enters, part of the airflow overflows through the pressurizing air opening, the rest of the airflow continues to circulate and pressurize, and the uniformity of air outlet force of the pressurizing air opening is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to a PTC heating module for heaters. Background Technology

[0002] Heaters are devices used for heating. Based on different heating media and heating principles, heating devices can be broadly classified into: gas heating devices, electric heating devices, boiler heating devices, and electric wall-mounted boiler heating devices. They can directly convert electrical energy or other chemical energy into heat energy and transfer heat through radiation, convection, and other means, allowing users to move around in a suitable temperature environment. In most cases, they will reduce air humidity. They are widely used in various civil and public buildings such as residences, offices, hotels, shopping malls, hospitals, schools, train carriages, mobile heating, and simple mobile houses.

[0003] Chinese Patent Publication No. CN220103419U discloses an intelligent indoor heater with an extra-long heating air outlet, which includes a shell and a top cover. An air outlet device is installed inside the shell. Both the shell and the top cover have multiple air inlets. An air outlet is installed at the bottom of the shell. A hot air system and a ventilation system are installed inside the shell at the air inlets and air outlets. The hot air system and the ventilation system constitute the air outlet device. A wiring cover with a junction box is installed at one end of the shell. The junction box is connected to the hot air system and the ventilation system for power supply via a cable. A box cover with a ventilation air outlet is installed at the other end. It has the advantages of simple structure, convenient use and installation, and large air volume.

[0004] The aforementioned technology, through the air-storing chamber formed by the upper and lower covers of the heating module, ensures that the air generated by the fan first accumulates in the chamber, and then the air passes through the PTC heating block and the pressurized air outlet for heating and discharge. However, since the pressurized air outlet is a linear outlet, the air force at the front and rear ends of the pressurized air outlet is not uniform. Furthermore, the thermal radiation structure design of ordinary PTC heating blocks is unreasonable, making it difficult to synchronize the temperature changes of the heating unit. This results in inaccurate temperature control and uneven air outlet temperature. Therefore, this utility model discloses a PTC heating module for heaters to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a PTC heating module for heaters, in order to solve the problems mentioned in the background art, such as the uneven airflow at the front and rear ends of the pressurized air outlet of traditional heaters, and the unreasonable thermal radiation structure design of ordinary PTC heating blocks, which makes it difficult to synchronize the temperature changes of the heating unit, resulting in inaccurate temperature control and uneven air outlet temperature.

[0006] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems:

[0007] A PTC heating module for a heater includes a heating module upper cover, a heating module lower cover, and a PTC heating assembly located between the two. The heating module upper cover and the heating module lower cover are screwed together as a single unit. The PTC heating assembly is installed in a mounting groove at the bottom of the heating module lower cover, and a pressurized air vent is provided at the bottom of the mounting groove corresponding to the PTC heating assembly. The PTC heating assembly includes multiple parallel heating elements. A heat-conducting plate is provided on one side of each heating element. A heating plate for increasing the heat radiation area is fixedly connected between adjacent heating elements and heat-conducting plates. Multiple heat insulation blocks are fixedly connected between the side of each heating element away from the heating plate and the adjacent heat-conducting plate.

[0008] As a further embodiment of this utility model, the heating plate has a wavy structure, so that multiple triangular ventilation gaps are formed between the heating element and the heat-conducting element and the heating plate.

[0009] As a further embodiment of this utility model, the spacing between adjacent heat insulation blocks is the same, so that a rectangular ventilation gap is formed between the heating element and the heat-conducting element and the heat insulation block.

[0010] As a further embodiment of this utility model, the heat insulation block is made of any one of glass fiber, asbestos, or rock wool.

[0011] As a further embodiment of this utility model, a gradually narrowing air cavity is formed between the upper cover and the lower cover of the heating module, and the height of the upper cover of the heating module gradually decreases as its width narrows.

[0012] As a further embodiment of this utility model, an electrical junction box is fixed at the end of the mounting groove, and the mounting groove and the electrical junction box are provided with multiple span grooves, which are arranged corresponding to the heating element.

[0013] As a further embodiment of this utility model, a baffle plate is provided at the narrowest part of the heating module cover, and multiple clearance grooves are provided on the baffle plate corresponding to the heating element.

[0014] As a further embodiment of this utility model, the booster vent is gradually narrowed, and a grille is fixed at the port of the booster vent.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model discloses a PTC heating module for a heater. An air cavity for storing air is formed between the upper and lower covers of the heating module. The size of the air cavity gradually narrows. When airflow enters, some airflow overflows through the pressurized air vent, while the remaining airflow continues to circulate and pressurize, ensuring the uniformity of the airflow from the pressurized air vent. The heat generated by the heat-conducting sheet when energized can be conducted and absorbed by the heat-conducting sheet and the heating plate. When the airflow passes through the ventilation gap, the heat can heat the air in the form of radiation. The heat insulation block can effectively prevent the heat from being conducted to non-target areas, avoiding local overheating and ensuring the uniformity of the air outlet temperature, thus improving the overall air outlet performance of the heater. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural exploded view of a PTC heating module for a heater according to the present invention;

[0019] Figure 2 This utility model provides a PTC heating module for a heater. Figure 1 Enlarged view of the structure at point A in the image;

[0020] Figure 3 This is a structural diagram of the PTC heating component in a PTC heating module for a heater according to the present invention;

[0021] Figure 4 This is a structural diagram of the lower cover of the heating module in a PTC heating module for a heater according to the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Heating module top cover; 11. Baffle plate; 12. Clearance groove; 2. Heating module bottom cover; 21. Mounting groove; 22. Pressurized air outlet; 23. Electrical junction box; 24. Span groove; 3. PTC heating assembly; 31. Heating element; 32. Heat-conducting sheet; 33. Heating plate; 34. Heat insulation block. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments.

[0025] Please see Figure 1-4This utility model provides a PTC heating module for a heater, including a heating module upper cover 1, a heating module lower cover 2, and a PTC heating component 3 located between the two. The PTC heating component 3 includes a plurality of parallel heating elements 31. Each heating element 31 has a heat-conducting element 32 on one side. A heating plate 33 for increasing the heat radiation area is fixedly connected between adjacent heating elements 31 and heat-conducting elements 32. A plurality of heat insulation blocks 34 are fixedly connected between the side of the heating element 31 away from the heating plate 33 and the adjacent heat-conducting element 32.

[0026] Specifically, the parallel-arranged heating elements 31 help to distribute heat evenly, the heating plate 33 is used to increase the heat radiation area, and the heat insulation block 34 prevents heat from being conducted to non-target areas, avoids the heat generation of adjacent heating elements 31 from affecting each other, avoids local overheating, and ensures the uniformity of the outlet air temperature.

[0027] Furthermore, the heating plate 33 has a wavy structure, so that multiple triangular ventilation gaps are formed between the heating element 31 and the heat-conducting element 32 and the heating plate 33.

[0028] Specifically, the wave-shaped heating plate 33 increases its surface area, thereby expanding its contact area with the airflow, enhancing the thermal radiation effect, and allowing heat to be transferred to the air more effectively.

[0029] Furthermore, the spacing between adjacent heat insulation blocks 34 is the same, so that a rectangular ventilation gap is formed between the heating element 31 and the heat-conducting element 32 and the heat insulation block 34.

[0030] Specifically, the ventilation gap helps ensure uniform heat distribution between the heating element 31 and the heat-conducting element 32, while also helping to form a regular ventilation path.

[0031] Furthermore, the heat insulation block 34 is made of any one of glass fiber, asbestos, or rock wool;

[0032] Specifically, fiberglass, asbestos, and rock wool have excellent thermal insulation properties, which can effectively prevent heat from being conducted to non-target areas, avoid local overheating, and ensure the uniformity of the outlet air temperature.

[0033] Furthermore, the upper cover 1 and the lower cover 2 of the heating module are fixed together as a single structure with screws, and a gradually narrowing air cavity is formed between the upper cover 1 and the lower cover 2 of the heating module. The height of the upper cover 1 of the heating module gradually decreases as its width narrows.

[0034] Specifically, the airflow enters the air cavity formed between the upper cover 1 and the lower cover 2 of the heating module. Part of the airflow overflows through the pressurized air vent 22, while the remaining airflow continues to circulate and be pressurized, so that the airflow can be blown out evenly. This helps to optimize the flow path and speed of the airflow and improve thermal efficiency and air outlet performance.

[0035] Furthermore, the PTC heating component 3 is installed in the mounting groove 21 at the bottom of the heating module lower cover 2, and a pressurized air vent 22 is provided at the bottom of the mounting groove 21 corresponding to the PTC heating component 3. The pressurized air vent 22 is gradually narrowed, and a grille is fixed at the port of the pressurized air vent 22.

[0036] Specifically, the design of the pressurized air vent 22 is gradually narrowing, which helps the airflow to accelerate when passing through the pressurized air vent 22, thereby improving the uniformity of the airflow and the efficiency of the air outlet. The airflow is more concentrated when passing through the pressurized air vent 22, reducing airflow turbulence and thus improving the heating efficiency of the heater. A grille is fixed at the port of the pressurized air vent 22, which can protect the internal heating components from direct contact with external objects. It also helps to distribute the airflow evenly and prevent the airflow from being too concentrated, which could cause discomfort to the user or the surrounding environment. The presence of the grille can also prevent foreign objects from entering the heating module and protect the safe operation of the equipment.

[0037] Furthermore, a junction box 23 is fixed to the end of the mounting groove 21. The mounting groove 21 and the junction box 23 are provided with a plurality of span grooves 24, and the span grooves 24 are correspondingly arranged with respect to the heating element 31.

[0038] Specifically, the span groove 24 provides an electrical connection channel for the heating element 31, allowing the heating element 31 to be connected to the power supply or control circuit in the junction box 23, and also facilitates the positioning and installation of the PTC heating component 3.

[0039] Furthermore, a baffle plate 11 is provided at the narrowest part of the upper cover 1 of the heating module, and a plurality of clearance grooves 12 are provided on the baffle plate 11 corresponding to the heating element 31;

[0040] Specifically, the function of the baffle plate 11 is to prevent airflow from flowing out, thereby improving the utilization efficiency of hot air and the heating effect. The end of the heating element 31 is held between the clearance groove 12 and the span groove 24, so that the end of the heating element 31 is located outside the air cavity, which facilitates the wiring and installation process.

[0041] Working principle: When in use, the airflow enters the air cavity formed between the upper cover 1 and the lower cover 2 of the heating module. Part of the airflow overflows through the pressurized air vent 22, while the rest of the airflow continues to circulate and be pressurized, so that the airflow can be blown out evenly. The heat generated by the heat-conducting plate 32 when it is powered on can be conducted and absorbed by the heat-conducting plate 32 and the heating plate 33. When the airflow passes through the ventilation gap, the heat can heat the air in the form of radiation.

Claims

1. A PTC heating module for a heater, comprising an upper heating module cover (1), a lower heating module cover (2), and a PTC heating assembly (3) located between the two, wherein the upper heating module cover (1) and the lower heating module cover (2) are screwed together as an integral structure, characterized in that, The PTC heating component (3) is installed in the mounting groove (21) at the bottom of the heating module cover (2), and the bottom of the mounting groove (21) is provided with a pressurized air vent (22) corresponding to the PTC heating component (3). The PTC heating component (3) includes multiple parallel electric heating elements (31). Each electric heating element (31) has a heat-conducting plate (32) on one side. A heating plate (33) for increasing the heat radiation area is fixedly connected between adjacent electric heating elements (31) and heat-conducting plates (32). Multiple heat insulation blocks (34) are fixedly connected between the side of the electric heating element (31) away from the heating plate (33) and the adjacent heat-conducting plate (32).

2. The PTC heating module for a heater according to claim 1, characterized in that: The heating plate (33) has a wavy structure, so that multiple triangular ventilation gaps are formed between the heating element (31) and the heat-conducting element (32) and the heating plate (33).

3. A PTC heating module for a heater according to claim 1, characterized in that: The spacing between adjacent heat insulation blocks (34) is the same, so that a rectangular ventilation gap is formed between the heating element (31) and the heat-conducting element (32) and the heat insulation block (34).

4. A PTC heating module for a heater according to claim 1, characterized in that: The heat insulation block (34) is made of any one of glass fiber, asbestos, or rock wool.

5. A PTC heating module for a heater according to claim 1, characterized in that: A gradually narrowing air cavity (4) is formed between the upper cover (1) and the lower cover (2) of the heating module, and the height of the upper cover (1) of the heating module gradually decreases as its width narrows.

6. A PTC heating module for a heater according to claim 1, characterized in that: The mounting slot (21) is fixed with a junction box (23) at its end. The mounting slot (21) and the junction box (23) are provided with multiple span slots (24), which are corresponding to the heating element (31).

7. A PTC heating module for a heater according to claim 1, characterized in that: A baffle plate (11) is provided at the narrowest part of the upper cover (1) of the heating module, and multiple clearance slots (12) are provided on the baffle plate (11) corresponding to the heating element (31).

8. A PTC heating module for a heater according to claim 1, characterized in that: The pressurized air vent (22) is gradually narrowed, and a grille is fixed at the port of the pressurized air vent (22).

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