Multilayer heat dissipation structure of ceramic PTC (Positive Temperature Coefficient) electric heater

Abstract

The invention is suitable for the technical field of PTC electric heaters, and provides a ceramic PTC electric heater multilayer heat dissipation structure, which comprises a bottom plate, stand columns are fixedly connected to the periphery of the bottom of the bottom plate, a protective cover is fixedly connected to the upper end of the bottom plate, and a through hole is formed in the bottom of the protective cover; a first heat dissipation assembly is arranged on the bottom plate, a protective cover is arranged on the top of the protective cover, a second heat dissipation assembly is arranged on the protective cover, a water cooling assembly is arranged on the protective cover, and through the first heat dissipation assembly and the second heat dissipation assembly, the interior of the protective cover can be conveniently ventilated, so that the internal air circulation speed is increased; the water cooling assembly is arranged for further heat dissipation, the temperature and humidity sensor is arranged for conveniently monitoring the internal temperature, however, when the temperature is too high, the first heat dissipation assembly, the second heat dissipation assembly and the water cooling assembly are started at the same time, and when the temperature is normal, only the first heat dissipation assembly is started, so that the use of energy is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of PTC electric heaters, and in particular relates to a multi-layer heat dissipation structure of a ceramic PTC electric heater. Background Art

[0002] The multi-layer heat dissipation structure of the ceramic PTC electric heater is an efficient thermal management system, which is usually composed of a PTC ceramic heating element and a heat dissipation component that matches it. This structural design can improve the thermal efficiency and heat dissipation performance of the heater, ensuring that the heater can quickly reach and maintain a constant temperature when working. It is composed of a PTC ceramic heating element and an aluminum tube. This type of PTC heating element has the advantages of low thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power-saving electric heater. The outstanding feature is safety performance. In any application, it will not produce the "reddening" phenomenon on the surface of the electric heating tube heater, which will cause burns, fire and other safety hazards. It heats up quickly, can automatically control the temperature when the fan fails, has a long service life, and a wide voltage range. It can be designed according to needs between 12V-380V. It is easy to design and can be designed arbitrarily from low power to high power. The appearance can also be designed as required. It does not burn, and is safe and reliable.

[0003] The prior art still has the following deficiencies:

[0004] The heat dissipation effect of the existing PTC heater's heat dissipation structure is not ideal, and the heat dissipation often cannot keep up with the heat generated by the equipment, causing overheating and damage to the equipment. Some equipment will generate a lot of heat when working, and this excess heat cannot be dissipated quickly and accumulates to generate high temperature, which may very likely destroy the working equipment. At the same time, the existing technology cannot monitor the heat, and the pain-relieving ointment only dissipates heat in a single way, and the heat dissipation effect is poor. Summary of the invention

[0005] The present invention provides a ceramic PTC electric heater multi-layer heat dissipation structure, aiming to solve the problem that the heat dissipation effect of the existing PTC heater heat dissipation structure is not ideal, and the heat dissipation often cannot keep up with the heat generated by the equipment, thereby causing overheating and damage to the equipment. Some equipment will generate a large amount of heat when working, and this excess heat cannot be dissipated quickly and accumulates to generate high temperature, which is likely to destroy the working equipment. At the same time, the existing technology cannot monitor the heat, and the pain-relieving ointment uses a single method to dissipate heat, resulting in poor heat dissipation effect.

[0006] The present invention is implemented as follows: a ceramic PTC electric heater multi-layer heat dissipation structure includes: a base plate, the bottom of the base plate is fixedly connected with columns on all four sides, the upper end of the base plate is fixedly connected with a protective cover, and the bottom of the protective cover is provided with a through hole; a first heat dissipation component is arranged on the base plate, a protective cover is arranged on the top of the protective cover, a second heat dissipation component is arranged on the protective cover, a water cooling component is arranged on the protective cover, and a fixed component is arranged between the protective cover and the protective cover; the first heat dissipation component includes an opening opened on the base plate, the lower end of the opening is detachably fixedly connected with a filter plate, the inside of the opening is detachably fixedly connected with a mounting plate, and the lower end of the mounting plate is detachably fixedly connected with a plurality of stepping motors.

[0007] Preferably, the first heat dissipation component also includes fan blades fixedly connected to the output ends of the stepper motors; the mounting plate is provided with a plurality of ventilation holes; the second heat dissipation component and the first heat dissipation component have the same structure and are symmetrical.

[0008] Preferably, a mounting frame is provided inside the protective cover, a plurality of heating plates are installed on the mounting frame, rubber plates are provided on both sides of the outside of the protective cover, connecting wires are connected between the plurality of heating plates, and metal plugs are fixedly connected on both sides of the connecting wires passing through two rubber plates.

[0009] Preferably, a temperature and humidity sensor is installed inside the protective cover.

[0010] Preferably, two ends of the bottom of the protective cover close to the inner side of the protective cover are detachably and fixedly connected with desiccant boxes, and desiccant is placed inside the two desiccant boxes.

[0011] Preferably, the water cooling assembly includes water tanks respectively arranged on the sides of the two columns away from each other, refrigerators are respectively installed in the two water tanks, cooling pipes connected in a spiral shape are respectively arranged around the inside of the protective cover, and several of the heating plates are located in the middle of the cooling pipes.

[0012] Preferably, the water cooling assembly also includes water pumps arranged on both sides of the protective cover, one side of the two water pumps is respectively connected to a first pipe, the extended ends of the two first pipes respectively pass through the protective cover and are connected to the water inlet and outlet ends of the cooling pipe, the other side of the two water pumps is respectively connected to a second pipe, and the extended ends of the two second pipes are respectively connected to the two water tanks.

[0013] Preferably, the fixing assembly includes the same U-shaped support seat fixedly connected to the upper end of the protective cover, the U-shaped support seat is provided with a U-shaped slot, and limiting slots are respectively provided in the middle of the lower end of the protective cover.

[0014] Preferably, the fixing assembly also includes a pull plate arranged around the U-shaped support seat, one side of the four pull plates is respectively fixedly connected to a limiting rod, the extended ends of the four limiting rods respectively pass through the U-shaped support seat and are clamped in the four limiting grooves at corresponding positions, and the four limiting rods are each provided with a guide spring, one side of the four guide springs is respectively fixedly connected to one side of the four pull plates, and the other side of the four guide springs is respectively fixedly connected to the U-shaped support seat.

[0015] Preferably, the protective shield and the protective cover are both made of corrosion-resistant material and are provided with a reinforcement layer inside.

[0016] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0017] By providing a first heat dissipation component and a second heat dissipation component, ventilation of the interior of the protective cover is facilitated, so that the internal air circulation speed is accelerated, and the generated heat is quickly removed. By providing a water cooling component, heat is further dissipated. By providing a temperature and humidity sensor, the internal temperature is monitored. However, when the temperature is too high, the first heat dissipation component, the second heat dissipation component and the water cooling component are started at the same time. When the temperature is normal, only the first heat dissipation component is started to reduce energy usage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0020] Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 The present invention Figure 2 The enlarged structural diagram at B in the middle;

[0022] Figure 5 The present invention Figure 2 The enlarged structural diagram at C in the middle;

[0023] Figure 6 The present invention Figure 2 The enlarged structural diagram at D in the middle;

[0024] Figure 7 This is a schematic diagram of the front view structure of the cooling pipe of the present invention;

[0025] In the figure: 1. bottom plate; 2. column; 3. protective cover; 4. protective cover; 5. first heat dissipation component; 6. second heat dissipation component; 7. fixing component; 8. water cooling component; 9. heating plate; 10. rubber plate; 11. connecting wire; 12. metal plug; 13. temperature and humidity sensor; 14. U-shaped support seat; 15. U-shaped card slot; 16. limit slot; 17. limit rod; 18. pull plate; 19. guide spring; 20. desiccant box; 21. opening; 22. filter plate; 23. through hole; 24. mounting plate; 25. ventilation hole; 26. stepping motor; 27. fan blade; 28. water tank; 29. ​​second pipeline; 30. water pump; 31. first pipeline; 32. cooling pipe. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] The embodiment of the present invention provides a ceramic PTC electric heater multi-layer heat dissipation structure, such as Figure 1-7 As shown, it includes: a base plate 1, columns 2 are fixedly connected to the bottom of the base plate 1 on all sides, a protective cover 3 is fixedly connected to the upper end of the base plate 1, and a through hole 23 is opened at the bottom of the protective cover 3; a first heat dissipation component 5 is arranged on the base plate 1, a protective cover 4 is arranged on the top of the protective cover 3, a second heat dissipation component 6 is arranged on the protective cover 4, a water cooling component 8 is arranged on the protective cover 3, and a fixing component 7 is arranged between the protective cover 3 and the protective cover 4; the first heat dissipation component 5 includes an opening 21 opened on the base plate 1, a filter plate 22 is detachably fixedly connected to the lower end of the opening 21, a mounting plate 24 is detachably fixedly connected to the inside of the opening 21, and a plurality of stepping motors 26 are detachably fixedly connected to the lower end of the mounting plate 24.

[0029] It should be noted that, since the heat dissipation effect of the existing PTC heater is not ideal, the heat dissipation often cannot keep up with the heat generated by the equipment, resulting in overheating and damage to the equipment. Some equipment will generate a large amount of heat when working, and this excess heat cannot be quickly dissipated and accumulates to generate high temperature, which may destroy the working equipment. At the same time, the existing technology cannot monitor the heat, and the analgesic cream dissipates heat in a single way, and the heat dissipation effect is poor. This solution provides a first heat dissipation component 5 and a second heat dissipation component 6 to facilitate ventilation of the interior of the protective cover 3, speed up the internal air circulation speed, and facilitate the rapid removal of the generated heat. By providing a water cooling component 8, heat is further dissipated. By providing a temperature and humidity sensor 13, it is convenient to monitor the internal temperature. However, when the temperature is too high, the first heat dissipation component 5, the second heat dissipation component 6 and the water cooling component 8 are started at the same time. When the temperature is normal, only the first heat dissipation component 5 is started to reduce energy use.

[0030] In a further preferred embodiment of the present invention, Figure 1-3 As shown, the first heat dissipation component 5 also includes a fan blade 27 fixedly connected to the output end of a plurality of stepper motors 26; a plurality of ventilation holes 25 are provided on the mounting plate 24; the second heat dissipation component 6 and the first heat dissipation component 5 have the same structure and are symmetrical.

[0031] In this embodiment, the rotation direction and speed of the stepper motor 26 can be controlled by an external controller to facilitate heat dissipation.

[0032] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a mounting frame is provided inside the protective cover 3, and a plurality of heating plates 9 are installed on the mounting frame. Rubber plates 10 are provided on both sides of the outside of the protective cover 3, and connecting wires 11 are connected between the plurality of heating plates 9. Metal plugs 12 are fixedly connected to the connecting wires 11 through two rubber plates 10 on both sides.

[0033] In this embodiment, electrical connection is facilitated.

[0034] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a temperature and humidity sensor 13 of model THM-D20E is installed inside the protective cover 3.

[0035] In this embodiment, it is convenient to monitor the internal temperature.

[0036] It should be noted that the model specification THM-D20E of the temperature and humidity sensor 13 is not the only limitation, but is selected and determined based on the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0037] The power supply and principle of the temperature and humidity sensor 13 are clear to those skilled in the art and will not be described in detail here.

[0038] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the bottom of the protective cover 4 is close to the two ends of the inner side of the protective cover 3 and is detachably fixedly connected with a desiccant box 20, and desiccant is placed inside the two desiccant boxes 20.

[0039] In this embodiment, it is convenient to dry the interior.

[0040] In a further preferred embodiment of the present invention, Figure 1-6 As shown, the water cooling assembly 8 includes water tanks 28 respectively arranged on the side of the two columns 2 away from each other, and refrigerators are installed in the two water tanks 28 respectively. Cooling pipes 32 connected in a spiral shape are respectively arranged around the inside of the protective cover 3, and several heating plates 9 are located in the middle of the cooling pipes 32.

[0041] In this embodiment, water cooling is facilitated to further dissipate heat.

[0042] In a further preferred embodiment of the present invention, Figure 1-7 As shown, the water cooling assembly 8 also includes water pumps 30 arranged on both sides of the protective cover 3, one side of the two water pumps 30 is connected to the first pipe 31 respectively, and the extended ends of the two first pipes 31 pass through the protective cover 3 and the water inlet end and the water outlet end of the cooling pipe 32 respectively to be connected, and the other side of the two water pumps 30 is connected to the second pipe 29 respectively, and the extended ends of the two second pipes 29 are connected to the two water tanks 28 respectively.

[0043] In this embodiment, it is convenient to circulate and inject cooling water.

[0044] In a further preferred embodiment of the present invention, Figure 1-5 As shown, the fixing assembly 7 includes a U-shaped support seat 14 fixedly connected to the upper end of the protective cover 3, a U-shaped slot 15 is provided on the U-shaped support seat 14, and limiting slots 16 are respectively provided in the middle of the lower end of the protective cover 4.

[0045] In this embodiment, it is convenient to limit and fix.

[0046] In a further preferred embodiment of the present invention, Figure 1-5As shown, the fixing assembly 7 also includes a pull plate 18 arranged around the U-shaped support seat 14, one side of the four pull plates 18 is respectively fixedly connected to the limiting rods 17, the extended ends of the four limiting rods 17 respectively pass through the U-shaped support seat 14 and are clamped with four limiting grooves 16 at corresponding positions, and the four limiting rods 17 are respectively sleeved with guide springs 19, one side of the four guide springs 19 is respectively fixedly connected to one side of the four pull plates 18, and the other sides of the four guide springs 19 are respectively fixedly connected to the U-shaped support seat 14.

[0047] In this embodiment, it is convenient to install and fix the protection cover 4.

[0048] In a further preferred embodiment of the present invention, Figure 1-2 As shown, the protective cover 3 and the protective cap 4 are both made of corrosion-resistant materials and are provided with a reinforcement layer inside.

[0049] In this embodiment, it is convenient to improve the overall strength.

[0050] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power supply is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0051] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0052] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0053] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A ceramic PTC electric heater multi-layer heat dissipation structure, characterized in that: include: A bottom plate (1), wherein upright posts (2) are fixedly connected to the four sides of the bottom of the bottom plate (1), a protective cover (3) is fixedly connected to the upper end of the bottom plate (1), and a through hole (23) is provided at the bottom of the protective cover (3); A first heat dissipation component (5) is arranged on the bottom plate (1), a protective cover (4) is arranged on the top of the protective cover (3), a second heat dissipation component (6) is arranged on the protective cover (4), a water cooling component (8) is arranged on the protective cover (3), and a fixing component (7) is arranged between the protective cover (3) and the protective cover (4); The first heat dissipation component (5) comprises an opening (21) opened on the bottom plate (1), the lower end of the opening (21) is detachably fixedly connected to a filter plate (22), the interior of the opening (21) is detachably fixedly connected to a mounting plate (24), and the lower end of the mounting plate (24) is detachably fixedly connected to a plurality of stepping motors (26).

2. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 1, characterized in that: The first heat dissipation component (5) further comprises a fan blade (27) fixedly connected to the output ends of the plurality of stepping motors (26); The mounting plate (24) is provided with a plurality of ventilation holes (25); The second heat dissipation component (6) and the first heat dissipation component (5) have the same structure and are symmetrical.

3. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 1, characterized in that: A mounting frame is provided inside the protective cover (3), a plurality of heating plates (9) are mounted on the mounting frame, rubber plates (10) are provided on both sides of the exterior of the protective cover (3), a connecting line (11) is connected between the plurality of heating plates (9), and metal plugs (12) are fixedly connected to the two sides of the connecting line (11) through two rubber plates (10).

4. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 1, characterized in that: A temperature and humidity sensor (13) is installed inside the protective cover (3).

5. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 1, characterized in that: The bottom of the protective cover (4) is close to the protective cover (3) and has desiccant boxes (20) respectively and detachably fixedly connected at both ends of one side inside the protective cover (3), and desiccant is placed inside the two desiccant boxes (20).

6. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 3, characterized in that: The water cooling assembly (8) comprises water tanks (28) respectively arranged on the sides of the two columns (2) away from each other, and refrigerators are respectively installed in the two water tanks (28). Cooling pipes (32) connected in a spiral shape are respectively arranged around the inside of the protective cover (3), and the plurality of heating plates (9) are all located in the middle of the cooling pipes (32).

7. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 6, characterized in that: The water cooling assembly (8) also includes water pumps (30) arranged on both sides of the protective cover (3), one side of the two water pumps (30) is respectively connected to a first pipe (31), the extended ends of the two first pipes (31) pass through the protective cover (3) and are connected to the water inlet and water outlet of the cooling pipe (32), the other side of the two water pumps (30) is respectively connected to a second pipe (29), and the extended ends of the two second pipes (29) are respectively connected to the two water tanks (28).

8. The multi-layer heat dissipation structure of a ceramic PTC electric heater according to claim 1, characterized in that: The fixing assembly (7) comprises a same U-shaped support seat (14) fixedly connected to the upper end of the protective cover (3) at all sides, the U-shaped support seat (14) is provided with a U-shaped slot (15), and the lower end of the protective cover (4) is respectively provided with a limiting slot (16) in the middle of the four sides.

9. A ceramic PTC electric heater multilayer heat dissipation structure as claimed in claim 8, characterized in that: The fixing assembly (7) also includes a pull plate (18) arranged around the U-shaped support seat (14), one side of the four pull plates (18) is respectively fixedly connected to the limiting rods (17), the extended ends of the four limiting rods (17) respectively pass through the U-shaped support seat (14) and are clamped with the four limiting grooves (16) at corresponding positions, and the four limiting rods (17) are respectively sleeved with guide springs (19), one side of the four guide springs (19) is respectively fixedly connected to one side of the four pull plates (18), and the other side of the four guide springs (19) is respectively fixedly connected to the U-shaped support seat (14).

10. The multi-layer heat dissipation structure of a ceramic PTC electric heater according to claim 1, characterized in that: The protective cover (3) and the protective cap (4) are both made of corrosion-resistant materials and are provided with a reinforcement layer inside.

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