Anti-deformation heating plate assembly

Abstract

The utility model relates to an anti-deformation heating plate assembly, which comprises a thick film heating plate, a runner plate with a liquid inlet joint and a liquid outlet joint, a temperature controller for controlling temperature and an anti-deformation support, the anti-deformation support and the runner plate are respectively arranged on two corresponding side surfaces of the thick film heating plate, and the anti-deformation support is provided with the temperature controller; the anti-deformation support comprises a support body, inner jacking protrusions and side jacking protrusions, the support body is matched with the edge contour of the thick film heating plate, the inner jacking protrusions are arranged in the support body, the side jacking protrusions are arranged on the corresponding outer contour of the support body, and the side jacking protrusions and the inner jacking protrusions are equal in height. The side jacking protrusions and the inner jacking protrusions protrude upwards and then abut against the thick film face of the thick film heating plate. According to the utility model, the deformation force of the thick film heating plate can be effectively resisted through multi-point jacking of the anti-deformation bracket, and the service life of a product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of thick film heating, in particular to an anti-deformation heating plate assembly. Background Art

[0002] For the thick film heating plate used in the field of water heating, in order to improve the heat conversion efficiency of the thick film heating plate, the prior art adopts adding a fluid flow channel plate on the back of the heating plate, and the flow channel plate and the heating plate are integrally formed by brazing. The fitting side of the flow channel plate and the thick film heating plate is designed as a flat plate structure with surface-to-surface fitting. The flow channel plate provides a stable long water path, increasing the heating time of the heating plate and the liquid.

[0003] For example, a thick film heating assembly with a high safety factor in use disclosed in the patent publication number CN214791886U, in which the thick film heating body is composed of a flow channel plate and a thick film heating plate that are hermetically welded to each other. A fluid channel is formed between the flow channel plate and the thick film heating plate, and a liquid inlet pipe joint and a liquid outlet pipe joint are respectively arranged at both ends of the fluid channel. At the same time, a cover plate is installed on the thick film heating body, and a temperature controller is arranged on the cover plate. Accordingly, the effect of improving the liquid heating efficiency can be achieved.

[0004] However, because the thick film heating plate heats up quickly and has a high temperature, it will generate deformation and damage the brazing structure during sintering and heating use, resulting in poor fitting between the heating plate and the flow channel plate, so that the direction of the water flow cannot be fully limited, leading to water leakage, vaporization and even dry burning inside the flow channel. Moreover, the thick film heating plate will generate unidirectional deformation due to the thermal expansion of the stainless steel substrate during dry burning, resulting in damage to the film layer by pulling, leading to a vicious cycle. The film layer on the back has a short dry burning resistance time, which cannot reserve enough reaction time for the temperature control switch, affecting electrical safety and further shortening the service life. Summary of the Invention

[0005] In order to solve the problem that the thick film heating plate generates deformation during use, the utility model provides an anti-deformation heating plate assembly, adding an aluminum bracket on the thick film surface of the heating plate. The aluminum bracket performs multi-point pressing on the heating plate, and corrects the deformation of the heating plate through the rigidity of the aluminum bracket.

[0006] To achieve the above object, the technical solution adopted by the utility model is:

[0007] An anti-deformation heating plate assembly, including a thick film heating plate, a flow channel plate with a liquid inlet joint and a liquid outlet joint, and a temperature controller for controlling the temperature, further including an anti-deformation bracket for correcting the thermal deformation of the thick film heating plate. The anti-deformation bracket and the flow channel plate are respectively arranged on the opposite side surfaces of the thick film heating plate, and the temperature controller is arranged on the anti-deformation bracket. Therefore, the anti-deformation bracket has a dual function.

[0008] The anti-deformation bracket includes a bracket body, an inner top pressing protrusion and side top pressing protrusions. The bracket body is adapted to the edge contour of the thick film heating plate to facilitate comprehensive coverage of the thick film heating plate. The inner top pressing protrusion is arranged at the center of the bracket body, and a plurality of the side top pressing protrusions are arranged on the corresponding outer contour of the bracket body. The side top pressing protrusions and the inner top pressing protrusion are of the same height. After the side top pressing protrusions and the inner top pressing protrusion protrude upward, they tightly abut against the thick film surface of the thick film heating plate, which is convenient for multi-point pressing of the thick film heating plate.

[0009] Further, the anti-deformation bracket is arranged on the thick film surface of the thick film heating plate. The anti-deformation bracket is a rectangular frame structure made of aluminum, which is convenient for heat transfer. The anti-deformation bracket and the thick film heating plate are detachably connected, which is convenient for the disassembly and assembly of the thick film heating plate.

[0010] Further, the flow channel plate and the thick film heating plate are integrally formed by laser welding, which improves the sealing performance of the flow channel plate.

[0011] Further, the bracket body includes a plate frame, mounting posts, cross rib plates, connecting rib plates and mounting rings. The plate frame is of a rectangular structure, and the mounting posts are arranged at the corners and inside of the plate frame. The cross rib plates are arranged in the plate frame in an "X" shape, and the ends of the cross rib plates are connected to the mounting posts, which improves the structural strength of the bracket body. The connecting rib plates are arranged between the side walls of the plate frame and the cross rib plates, which increases the surface area of the bracket body and better transfers the heat of the thick film heating plate. The mounting rings are arranged on the connecting rib plates.

[0012] Further, a screw is arranged between each mounting post and the thick film heating plate, and a thermostat is arranged in the mounting ring.

[0013] Further, the side top pressing protrusions are arranged on the four sides of the plate frame, which is convenient for pressing the edge of the thick film heating plate. The inner top pressing protrusion is arranged at the center of the cross rib plates, which is convenient for pressing the center of the thick film heating plate. The side top pressing protrusions, the inner top pressing protrusions, the plate frame, the mounting posts, the cross rib plates, the connecting rib plates and the mounting rings are integrally formed by machining, which is convenient for the processing and manufacturing of the anti-deformation bracket.

[0014] Further, the thickness of the side top pressing protrusions is the same as that of the inner top pressing protrusions. The thickness of the side top pressing protrusions is greater than the thickness of the side walls of the plate frame, and the thickness of the inner top pressing protrusions is greater than the thickness of the side walls of the cross rib plates.

[0015] Further, the bracket body further includes ear plates. The ear plates are arranged on the plate frame, and the number of the ear plates is more than two. The ear plates are arranged on the two corresponding side walls of the plate frame, which is convenient for installing the entire anti-deformation heating plate assembly on a certain carrier.

[0016] Furthermore, a power terminal block for the power input of the thick film heating plate is provided on the anti-deformation bracket. A connecting conductive terminal piece is provided on the power terminal block, which is convenient for the wiring and power supply of the thick film heating plate. The power terminal block is fixed to the anti-deformation bracket by snap connection or screw connection, which is convenient for the disassembly and assembly of the power terminal block.

[0017] By the above technical solution, the beneficial effects of the present utility model are as follows:

[0018] The structure of the present utility model is reasonably designed. An anti-deformation bracket made of aluminum is added to the thick film surface of the thick film heating plate. The anti-deformation bracket has the advantages of high heat transfer efficiency and high structural strength and is not easily deformed. Through the rigidity of the metal material of the anti-deformation bracket, the deformation during the operation of the thick film heating plate is corrected. The anti-deformation bracket realizes the close fit of the flow channel plate and the thick film heating plate through multi-point top pressure, and further the water flow heating is stable.

[0019] The anti-deformation bracket of the present utility model performs multi-point top pressure on the thick film heating plate through the inner top pressure protrusion and the side top pressure protrusion. The forces on each point of the contact surface between the anti-deformation bracket and the thick film heating plate are uniform, so as to resist the expansion deformation during the dry burning process of the thick film heating plate, thereby being able to extend the dry burning resistance time and thus extend the service life of the product. Description of the Drawings

[0020] Figure 1 is an axonometric view of an anti-deformation heating plate assembly of the present utility model.

[0021] Figure 2 is a bottom view of an anti-deformation heating plate assembly of the present utility model.

[0022] Figure 3 is a schematic diagram of the separated state of an anti-deformation heating plate assembly of the present utility model.

[0023] Figure 4 is an axonometric view of the anti-deformation bracket of an anti-deformation heating plate assembly of the present utility model.

[0024] The reference numerals in the drawings are: 1 thick film heating plate, 2 liquid inlet joint, 3 liquid outlet joint, 4 flow channel plate, 5 temperature controller, 6 anti-deformation bracket, 7 bracket body, 71 plate frame, 72 mounting post, 73 cross rib plate, 74 connecting rib plate, 741 long rib plate, 742 short rib plate, 75 mounting ring, 8 inner top pressure protrusion, 9 side top pressure protrusion, 91 first side top pressure protrusion, 92 second side top pressure protrusion, 10 screw, 11 ear plate, 12 power terminal block. Detailed Embodiments

[0025] The following makes a detailed description of the specific embodiments of the present utility model in conjunction with the drawings:

[0026] Such as Figures 1 to 4As shown in the figure, an anti-deformation heating plate assembly includes a thick film heating plate 1, a flow channel plate 4 with a liquid inlet joint 2 and a liquid outlet joint 3, and a temperature controller 5 for controlling the temperature. The thick film heating plate 1 has a heating function by itself, and the flow channel plate 4 is arranged on the thick film heating plate 1; the flow channel plate 4 provides a path for the liquid to flow, and the thick film heating plate 1 can heat the flowing liquid; the temperature controller 5 can control the temperature of the thick film heating plate 1 and the liquid.

[0027] The anti-deformation heating plate assembly further includes an anti-deformation bracket 6, and the thick film heating plate 1 is multi-point pressed through the anti-deformation bracket 6 to prevent it from deforming. The anti-deformation bracket 6 is an aluminum rectangular frame structure, and the anti-deformation bracket 6 is arranged on the thick film surface of the thick film heating plate 1, that is, the anti-deformation bracket 6 and the flow channel plate 4 are respectively arranged on the two corresponding side surfaces of the thick film heating plate 1.

[0028] During installation, the flow channel plate 4 and the thick film heating plate 1 are integrally formed by laser welding to improve the sealing performance of the flow channel plate 4. The anti-deformation bracket 6 and the thick film heating plate 1 are detachably connected to realize the convenient disassembly and assembly of the anti-deformation bracket 6. The temperature controller 5 is arranged on the anti-deformation bracket 6, that is, the anti-deformation bracket 6 not only has the function of preventing the thick film heating plate 1 from deforming, but also is the installation carrier of the temperature controller 5. Here, the number of temperature controllers 5 is two. One temperature controller 5 is used to measure the operating temperature of the thick film heating plate 1 to facilitate the control of dry burning prevention, and the other temperature controller 5 is used to measure the outlet water temperature of the liquid in the flow channel plate 4.

[0029] In this embodiment, the anti-deformation bracket 6 includes a bracket body 7, an inner pressing protrusion 8 and a side pressing protrusion 9. The bracket body 7 is the main body of the anti-deformation bracket 6, and the inner pressing protrusion 8 and the side pressing protrusion 9 are integrally formed on the bracket body 7. The thick film heating plate 1 can be evenly multi-point pressed by using the inner pressing protrusion 8 and the side pressing protrusion 9.

[0030] The bracket body 7 is adapted to the edge contour of the thick film heating plate 1, that is, the cross-sectional size of the bracket body 7 and the cross-sectional dimension of the thick film heating plate 1 are matched, and thus the bracket body 7 can fully cover the thick film surface of the thick film heating plate 1.

[0031] The bracket body 7 includes a plate frame 71, mounting columns 72, cross rib plates 73, connecting rib plates 74 and a mounting ring 75. The plate frame 71 is a rectangular structure, and mounting columns 72 are arranged at the corners and inside of the plate frame 71. The mounting columns 72 are cylinders with threaded through holes, and the height of the mounting columns 72 is greater than the height of the plate frame 71. A screw 10 is arranged between each mounting column 72 and the thick film heating plate 1, and the disassembly and assembly of the anti-deformation bracket 6 and the thick film heating plate 1 can be realized through the screw 10.

[0032] A cross rib plate 73 is arranged inside the plate frame 71. The cross rib plate 73 is arranged in an "X" shape, that is, the mounting rib plates are arranged along the diagonal of the plate frame 71. The end of the cross rib plate 73 is connected to the mounting column 72. The function of the cross rib plate 73 is to improve the strength of the support body 7.

[0033] A connecting rib plate 74 is arranged between the side wall of the plate frame 71 and the cross rib plate 73. The purpose of the connecting rib plate 74 is to further increase the structural strength of the support body 7. Here, the connecting rib plate 74 includes a long rib plate 741 and a group of short rib plates 742. The long rib plate 741 is arranged in a straight line along the length direction of the plate frame 71, and the long rib plate 741 penetrates through the center of the cross rib plate 73. The number of groups of short rib plates 742 is two groups. The two groups of short rib plates 742 are symmetrically arranged along the width direction of the plate frame 71. Each group of short rib plates 742 includes three short rib plates 742. The three short rib plates 742 are arranged at intervals along the length direction of the plate frame 71. The length of the middle short rib plate 742 is greater than that of the other two short rib plates 742, and the middle short rib plate 742 is connected to the center of the cross rib plate 73.

[0034] An installation ring 75 is arranged on the connecting rib plate 74, and a thermostat 5 is arranged inside the installation ring 75. Specifically, the installation ring 75 is arranged on the long rib plate 741. The long rib plate 741 should give way to the installation ring 75 and avoid directly penetrating the installation ring 75. The function of the installation ring 75 is to provide an installation space for the thermostat 5. Here, the installation rings 75 are arranged on the long rib plates 741 on both sides of the center of the cross rib plate 73. The installation ring 75 is a circular ring structure, and the installation ring 75 is also connected to the cross rib plate 73. The cross rib plate 73 combined with the long rib plate 741 can support the installation ring 75 to ensure that there is enough bearing capacity to arrange the thermostat 5.

[0035] An inner top pressing protrusion 8 is arranged at the center of the support body 7, that is, the inner top pressing protrusion 8 is arranged at the center of the cross rib plate 73. The thickness of the inner top pressing protrusion 8 is greater than the thickness of the side wall of the cross rib plate 73. The inner top pressing protrusion 8 is a strip-shaped protrusion with a certain length. The inner top pressing protrusion 8 is equivalent to being arranged on the middle short rib plate 742.

[0036] A plurality of side top pressing protrusions 9 are arranged on the opposite side walls of the support body 7, that is, the side top pressing protrusions 9 are arranged around the plate frame 71. The side top pressing protrusion 9 includes a side top pressing protrusion one 91 and a side top pressing protrusion two 92. One side top pressing protrusion one 91 is arranged at the center of each of the shorter side walls of the plate frame 71, and three side top pressing protrusions two 92 are respectively arranged at intervals on the longer side walls of the plate frame 71.

[0037] The side top pressing protrusion 9, the inner top pressing protrusion 8 and the mounting post 72 are of the same height. The thickness of the side top pressing protrusion 9 is the same as that of the inner top pressing protrusion 8, and the thickness of the side top pressing protrusion 9 is greater than the thickness of the side wall of the plate frame 71. The side top pressing protrusion 9, the inner top pressing protrusion 8, the plate frame 71, the mounting post 72, the cross rib plate 73, the connecting rib plate 74 and the mounting ring 75 are integrally formed by machining, which ensures the stability of the quality of the anti-deformation bracket 6 and simplifies the manufacturing process. After the side top pressing protrusion 9 and the inner top pressing protrusion 8 both protrude upward and tightly abut against the thick film surface of the thick film heating plate 1, multi-point support can be provided for the center and edge positions of the thick film heating plate 1.

[0038] In this embodiment, the bracket body 7 further includes ear plates 11. The ear plates 11 are arranged on the plate frame 71, and the plate frame 71 and the ear plates 11 are integrally formed. The number of the ear plates 11 is more than two. Here, the number of the ear plates 11 is four. The ear plates 11 are grouped in pairs and arranged on the opposite side walls of the plate frame 71. Through the ear plates 11, the anti-deformation bracket 6, the thick film heating plate 1 and the flow channel plate 4 can be installed on a certain carrier together to realize the fixation of the entire thick film heater, and the thick film heater is fixed at a certain position. The combination of the anti-deformation bracket 6, the thick film heating plate 1 and the flow channel plate 4 is the thick film heater.

[0039] To supply power to the thick film heating plate 1, a power terminal block 12 for the power input of the thick film heating plate 1 is provided on the anti-deformation bracket 6. Connecting conductive terminal pieces are provided on the power terminal block 12, and the power terminal block 12 is fixed to the anti-deformation bracket 6 by snap connection or screw connection.

[0040] In the present utility model, the flow channel plate 4 and the thick film heating plate 1 are integrally formed by laser welding, which can ensure the reliability of the sealing of the flow channel plate 4. At the same time, an anti-deformation bracket 6 made of aluminum is arranged on the thick film surface of the thick film heating plate 1. There are multiple protruding positions on the anti-deformation bracket 6, namely the inner top pressing protrusion 8 and the side top pressing protrusion 9, which can not only stably and effectively support the periphery of the thick film heating plate 1, but also play a supporting role in the center of the thick film heating plate 1. Thus, multi-point pressing of the thick film heating plate 1 can be realized to correct the deformation during its operation, and the dry-burning resistance time and service life of the thick film heating plate 1 can be extended.

[0041] The above-described embodiments are only the preferred embodiments of the present utility model and do not limit the scope of implementation of the present utility model. Therefore, all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent should be included in the scope of the patent application of the present utility model.

Claims

1. A deformation-resistant heating plate assembly, comprising a thick film heating plate (1), a flow channel plate (4) with a liquid inlet joint (2) and a liquid outlet joint (3), and a temperature controller (5) for controlling the temperature, characterized in that: It also includes an anti-deformation bracket (6), wherein the anti-deformation bracket (6) and the flow channel plate (4) are respectively arranged on two corresponding side surfaces of the thick film heating plate (1), and the temperature controller (5) is arranged on the anti-deformation bracket (6); The anti-deformation bracket (6) comprises a bracket body (7), an inner top pressure protrusion (8) and a side top pressure protrusion (9); the bracket body (7) and the edge profile of the thick film heating plate (1) are matched; the inner top pressure protrusion (8) is arranged inside the bracket body (7); a plurality of side top pressure protrusions (9) are arranged on the corresponding outer profile of the bracket body (7); the side top pressure protrusions (9) and the inner top pressure protrusions (8) are of the same height; the side top pressure protrusions (9) and the inner top pressure protrusions (8) both protrude upward and tightly abut against the thick film surface of the thick film heating plate (1).

2. The anti-deformation heating plate assembly according to claim 1, characterized in that: The anti-deformation bracket (6) is arranged on the thick film surface of the thick film heating plate (1); the anti-deformation bracket (6) is an aluminum rectangular frame structure; the anti-deformation bracket (6) and the thick film heating plate (1) are detachably connected.

3. The anti-deformation heating plate assembly according to claim 1, characterized in that: The flow channel plate (4) and the thick film heating plate (1) are integrally formed by laser welding.

4. The anti-deformation heating plate assembly according to claim 1, characterized in that: The support body (7) comprises a plate frame (71), a mounting column (72), a cross rib plate (73), a connecting rib plate (74) and a mounting ring (75); the plate frame (71) is a rectangular structure; the mounting column (72) is arranged at the corners and inside of the plate frame (71); the cross rib plate (73) is arranged inside the plate frame (71); the cross rib plate (73) is arranged in an "X" shape; the end of the cross rib plate (73) is connected to the mounting column (72); the connecting rib plate (74) is arranged between the side wall of the plate frame (71) and the cross rib plate (73); and the mounting ring (75) is arranged on the connecting rib plate (74).

5. The anti-deformation heating plate assembly according to claim 4, characterized in that: A screw (10) is provided between each of the mounting columns (72) and the thick film heating plate (1) for fixing, and the temperature controller (5) is provided in the mounting ring (75).

6. The anti-deformation heating plate assembly according to claim 4, characterized in that: The side pressing protrusions (9) are arranged on all sides of the plate frame (71), the inner pressing protrusion (8) is arranged at the center of the cross rib plate (73), and the side pressing protrusions (9), the inner pressing protrusions (8), the plate frame (71), the mounting column (72), the cross rib plate (73), the connecting rib plate (74), and the mounting ring (75) are integrally formed by machining.

7. The anti-deformation heating plate assembly according to claim 6, characterized in that: The thickness of the side top pressure protrusion (9) is consistent with the thickness of the inner top pressure protrusion (8), the thickness of the side top pressure protrusion (9) is greater than the thickness of the side wall of the plate frame (71), and the thickness of the inner top pressure protrusion (8) is greater than the thickness of the side wall of the cross rib plate (73).

8. The anti-deformation heating plate assembly according to claim 4, characterized in that: The bracket body (7) further comprises an ear plate (11), the ear plate (11) being arranged on the plate frame (71), the number of the ear plates (11) being greater than two, and the ear plates (11) being arranged on corresponding side walls of the plate frame (71).

9. The anti-deformation heating plate assembly according to claim 1, characterized in that: The anti-deformation bracket (6) is provided with a power terminal seat (12) for inputting power to the thick film heating plate (1), and a connecting conductive terminal piece is provided on the power terminal seat (12). The power terminal seat (12) and the anti-deformation bracket (6) are fixed by snap connection or screw connection.

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