A new thick film flat heater

Abstract

The utility model relates to the technical field of heater, disclose a kind of novel thick film flat plate heater, including backplate, the backplate bottom is provided with connecting plate, the connecting plate top outer wall is equipped with water guide groove, the connecting plate top is equipped with heating assembly, the heating assembly includes thick film, the thick film is set in connecting plate top, the connecting plate four corner position is equipped with mounting groove, the connecting plate left side outer wall is fixedly connected with connecting pipe, the backplate front and rear both ends top is fixedly connected with second mounting piece. In the utility model, through the heater and water guide groove, the evenly distributed welding spots of one side of connecting plate limit water guide groove by impact welding, avoid the water body in water guide groove to produce the phenomenon of water stringing, the connecting pipe of the left side outer wall of connecting plate can be connected into external fluid, cooperate water guide groove to form circulating flow path, can further optimize the working environment of heating system, so that heating process is more stable and efficient.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically a novel thick-film flat plate heater. Background Technology

[0002] Thick-film heating chips mainly rely on thick-film screen printing technology to sequentially print insulating media, heating resistors, conductor materials, protective media, and other materials on the heating element substrate, and then sinter them at high temperature to form a thick-film heating element.

[0003] During the manufacturing process or heating operation, existing flat plate heaters may deform due to high temperatures, creating gaps between the water guide plate and the thick film heating plate. This prevents the water flow from aligning with the thick film heating circuit, causing heat to be unable to dissipate in time in some areas, resulting in localized overheating, burnout of the thick film heating element, and affecting the product's lifespan.

[0004] To address the aforementioned problems, a novel thick-film flat plate heater is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a new type of thick film flat plate heater, which solves the problem in the background art: in the process of manufacturing or heating, the existing flat plate heater is deformed by high temperature, resulting in gaps between the water guide plate and the thick film heating plate. The water flow cannot be consistent with the thick film heating circuit, so the heat in some areas cannot be dissipated in time, leading to local overheating, burning of the thick film heating element, and affecting the product life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel thick film flat plate heater, comprising a back plate, a connecting plate being provided at the bottom of the back plate, and the back plate and the connecting plate being connected by edge welding, a water guide groove being provided on the top outer wall of the connecting plate, and a heating component being provided on the top of the connecting plate.

[0007] By adopting the above technical solution, the water entering through the connecting pipe is guided by a water guide channel.

[0008] As a further description of the above technical solution: the heating component includes a thick film, which is disposed on the top of the connecting plate.

[0009] By adopting the above technical solution, the shape of the thick film is the same as that of the water guide channel.

[0010] As a further description of the above technical solution: mounting grooves are provided at the four corners of the connecting plate.

[0011] By adopting the above technical solution, the connecting plate is installed and fixed through the mounting slot.

[0012] As a further description of the above technical solution: a connecting pipe is fixedly connected to the outer left wall of the connecting plate.

[0013] By adopting the above technical solution, water enters the interior through a connecting pipe, with one end of the connecting pipe for water inlet and the other end for water outlet.

[0014] As a further description of the above technical solution: the top of both the front and rear ends of the back plate are fixedly connected with second mounting parts.

[0015] By adopting the above technical solution, the thermostat is installed and fixed using the second mounting component.

[0016] As a further description of the above technical solution: a temperature controller is provided on the top of the second mounting component.

[0017] By adopting the above technical solution, the temperature controller limits the temperature.

[0018] As a further description of the above technical solution: a first mounting component is provided on the top left side of the thick film.

[0019] By adopting the above technical solution, the wiring terminals are connected to the terminals through the first mounting component.

[0020] As a further description of the above technical solution: the top of the first mounting component is provided with a wiring terminal.

[0021] By adopting the above technical solution, power is supplied through the wiring terminals.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The present invention provides a novel thick film flat plate heater. First, the heater and the water guide channel are connected by welding points evenly distributed on one side of the connecting plate to restrict the water guide channel, thereby preventing water from flowing through the water guide channel. The connecting pipe on the outer wall of the left side of the connecting plate can be connected to external fluid, forming a circulating flow path with the water guide channel. This can further optimize the working environment of the heating system and make the heating process more stable and efficient.

[0024] 2. The present invention provides a novel thick film flat plate heater, which forms an electrical connection with the thick film through temperature controllers installed at the top of the front and rear ends of the back plate. The heating temperature can be monitored in real time. When the temperature reaches the preset threshold, the circuit is automatically cut off to stop heating. When the temperature is lower than the preset threshold, the circuit is reconnected to resume heating. This allows the heater to operate within a specific temperature range, which can not only meet the precise temperature requirements of different application scenarios, but also avoid energy waste and equipment damage caused by excessively high or low temperatures. Attached Figure Description

[0025] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Fig. 2This is a schematic diagram of the overall exploded structure of this utility model;

[0027] Fig. 3 This is a schematic diagram of the bottom structure of the connecting plate of this utility model.

[0028] In the diagram: 1. Backplate; 2. Connecting pipe; 3. Thick film; 4. Terminal block; 5. Mounting groove; 6. Water guide groove; 7. First mounting component; 8. Second mounting component; 9. Connecting plate; 10. Thermostat. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.

[0031] Reference Figs. 1-3 This utility model discloses a novel thick-film flat plate heater, comprising a back plate 1, a connecting plate 9, a heating assembly, a connecting pipe 2, a temperature controller 10, and an installation structure.

[0032] Assembly of back plate and connecting plate

[0033] The back plate 1 serves as the overall support structure and is fixed to the connecting plate 9 by welding. The connecting plate 9 is made of 304 stainless steel with a thickness of 0.5-1mm, which has good thermal conductivity and corrosion resistance. The top outer wall of the connecting plate 9 has water guide grooves 6 stretched into an "S" shape. The outer end faces of the back plate 1 and the connecting plate 9 are welded around the entire circle. There are evenly distributed welding points around the bottom of the connecting plate 9, which are welded by spot welding to prevent the connecting plate 9 from deforming and expanding. The water guide grooves 6 are tightly fitted to the back plate 1 and are semi-circular. The two ends of the grooves extend to the left and right edges of the connecting plate 9, respectively, to ensure that the liquid can flow in a directional manner along the groove. The connecting pipe 2 at the front left is the water inlet pipe, and the connecting pipe 2 at the rear left is the water outlet pipe.

[0034] Installation of heating components

[0035] The core of the heating component is a thick film 3, which is fixed to the top center of the back plate 1 by a high-temperature sintering process. The heating layer of the thick film 3 is tightly attached to the surface of the back plate 1. A first mounting component 7 is fixed to the top left by welding. The first mounting component 7 is a copper terminal block. The top of the terminal block is fixed with screws to the terminal 4. The terminal 4 adopts a plug-in structure. The connection end with the external power supply wire is provided with an insulating sleeve to ensure electrical safety.

[0036] Assembly of connecting pipes

[0037] The connecting pipe 2 is fixed to the outer left side of the connecting plate 9 by welding. The connecting pipe 2 is made of stainless steel, and its inner diameter is adapted to the width of the water guide channel 6. Its axis is aligned with the left end of the water guide channel 6. The connection is made by welding to prevent liquid leakage. The end of the connecting pipe 2 away from the connecting plate 9 is provided with an external thread, which can be connected to an external fluid conveying pipeline by thread.

[0038] Thermostat installation

[0039] The back plate 1 has a second mounting part 8 at both ends. The second mounting part 8 is welded to the back plate to install the thermostat 10. The detection end of the thermostat 10 is electrically connected to the heating layer of the thick film 3 through a wire. The thermostat 10 on the left is automatic, and the thermostat 10 on the right is manually controlled by the knob in the middle. The action threshold of the thermostat 10 can be adjusted by the knob.

[0040] Overall fixed structure

[0041] Mounting slots 5 are formed at the four corners of the connecting plate 9 through a stamping process. The mounting slots 5 are oblong holes with a diameter that matches the M6 ​​bolts, used to fix the heater to the external equipment. During installation, the bolts pass through the mounting slots 5 and engage with the threaded holes of the external equipment. By adjusting the position of the bolts within the oblong holes, the horizontal position of the heater can be finely adjusted by ±5mm to ensure installation accuracy.

[0042] In this embodiment, the assembly tolerances of each component must meet the following requirements: the parallelism error between the back plate 1 and the connecting plate 9 is ≤0.2mm / m, and the flatness error between the thick film 3 and the connecting plate 9 is ≤0.1mm / m, so as to ensure heating uniformity and structural stability.

[0043] Working principle: External fluid enters the heater through the connecting pipe 2 on the left side of the connecting plate 9. The connecting pipe 2 is aligned with and sealed to the left port of the water guide trough 6, ensuring that the fluid flows directionally into the water guide trough 6. The water guide troughs on the top of the connecting plate 9 are distributed in an "S" shape to guide the inflowing fluid, causing it to flow along a preset path. At the same time, the connecting plate 9 is fixed by uniform weld points and ring welding at the bottom to avoid high-temperature deformation and expansion, ensuring that the water guide trough 6 and the thick film 3 are tightly bonded. After the external power is connected through the wiring terminal 4 on the top of the first mounting component 7, the thick film 3, as the core of the heating component, starts to work. Its heating layer is tightly bonded to the surface of the connecting plate 9, and the heat generated by the power is transferred to the connecting plate 9 through heat conduction. The fluid in the water guide trough 6 comes into contact with the connecting plate 9 during flow and absorbs heat to achieve heating. Meanwhile, the temperature controllers 10 on the top of the second mounting components 8 at both ends of the back plate 1 are electrically connected to the heating layer of the thick film 3 through wires to limit the heating temperature in real time. When the temperature reaches the preset threshold, the thermostat 10 automatically cuts off the circuit to stop the thick film 3 from heating. When the temperature is below the threshold, the circuit is reconnected to resume heating, ensuring that the heater operates within the set range. The heated fluid is finally discharged along the right port of the water guide trough 6, completing the heating process. The mounting slots 5 at the four corners of the connecting plate 9 fix the heater with bolts to ensure structural stability during operation.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel thick-film flat plate heater, comprising a back plate (1), characterized in that: The back plate (1) is provided with a connecting plate (9) at the bottom, and the back plate (1) and the connecting plate (9) are connected by edge welding. A water guide groove (6) is provided on the top outer wall of the connecting plate (9), and a heating component is provided on the top of the connecting plate (9).

2. The novel thick-film flat plate heater according to claim 1, characterized in that: The heating component includes a thick film (3), which is disposed on the top of the connecting plate (9), and the bottom of the connecting plate (9) is provided with evenly distributed solder points.

3. A novel thick-film flat plate heater according to claim 1, characterized in that: The connecting plate (9) has mounting slots (5) at its four corners.

4. A novel thick-film flat plate heater according to claim 1, characterized in that: A connecting pipe (2) is fixedly connected to the outer left wall of the connecting plate (9).

5. A novel thick-film flat plate heater according to claim 1, characterized in that: The back plate (1) has a second mounting component (8) fixedly connected to the top of both the front and rear ends.

6. A novel thick-film flat plate heater according to claim 5, characterized in that: The second mounting component (8) has a thermostat (10) on top.

7. A novel thick-film flat plate heater according to claim 2, characterized in that: The thick film (3) has a first mounting component (7) on its top left side.

8. A novel thick-film flat plate heater according to claim 7, characterized in that: The first mounting component (7) has a wiring terminal (4) on its top.

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