High-pressure water heater and thermal management apparatus

Abstract

The utility model relates to the technical field of heat management, in particular to a high-pressure water heater and heat management equipment. The high-pressure water heater comprises a core body assembly, a heating element, a control shell and a circuit board, the core assembly is arranged on the upper portion of the control shell. The circuit board is arranged on the control shell and comprises a second part located in the control shell and a first part extending to the upper portion of the control shell in the height direction of the circuit board. One end of the heating element is arranged in the core assembly, and the other end is fixedly connected with the first part of the circuit board. Therefore, the connection between the heating sheet and the circuit board can be simply and efficiently realized.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal management, and in particular, to a high-pressure water heater and a thermal management device. Background Art

[0002] The existing PTC heater includes a PTC heating sheet, a bus bar and a PCB board. Among them, the bus bar is provided with a first metal buckle and a metal sheet; the PCB board is provided with a second metal buckle. During assembly, the positive and negative electrodes of the PTC heating sheet are inserted into the first metal buckle of the bus bar assembly, and the metal sheet of the bus bar is inserted into the second metal buckle of the PCB board.

[0003] However, in such a connection method, the connection between the PTC heating sheet and the PCB board is realized through the bus bar, which causes problems of complex structure and increased structural cost.

[0004] Moreover, the electrode sheet and the first metal buckle, and the metal sheet and the second metal buckle are all inserted. The insertion fit is likely to cause poor connection, and the separately provided metal sheet and metal buckle also result in expensive material costs. Summary of the Utility Model

[0005] The purposes of the present utility model include, for example, providing a high-pressure water heater and a thermal management device, which can simply and efficiently realize the connection between the heating sheet and the circuit board.

[0006] The embodiments of the present utility model can be implemented as follows:

[0007] In a first aspect, the present utility model provides a high-pressure water heater, including:

[0008] A core body assembly, a heating element, a control shell, and a circuit board;

[0009] The core body assembly is arranged on the upper part of the control shell;

[0010] The circuit board is arranged in the control shell, and along the height direction of the circuit board, the circuit board includes a second component located inside the control shell and a first component extending to the upper part of the control shell;

[0011] One end of the heating element is arranged in the core body assembly, and the other end is fixedly connected to the first component of the circuit board.

[0012] In an optional implementation manner, a through connection hole is arranged at the top of the control shell; the circuit board passes through the connection hole, and the second component is located below the connection hole, and the first component is located above the connection hole.

[0013] In an alternative embodiment, the connection hole is elongated, and the length direction of the circuit board matches the extension direction of the connection hole; the length of the connection hole is greater than or equal to the length of the first component, and the width of the connection hole is greater than or equal to the width of the circuit board.

[0014] In an alternative embodiment, along the length direction of the circuit board, the length of the second component is greater than the length of the first component, and a stepped portion is formed at the bottom of the first component and the end portion in the length direction of the second component; the stepped portion can abut against the inner wall of the top of the control housing.

[0015] In an alternative embodiment, along the length direction of the circuit board, the first component is located in the middle of the second component.

[0016] In an alternative embodiment, a controller is further included, and the controller is fixedly arranged in the control housing; the controller is fixedly connected to the second component.

[0017] In an alternative embodiment, the heating element is connected to the circuit board by soldering.

[0018] In an alternative embodiment, the heating element is an MCH ceramic heating sheet.

[0019] In an alternative embodiment, the circuit board is a PCB board.

[0020] In a second aspect, the present utility model provides a thermal management device, and the thermal management device includes the high-pressure water heater according to any one of the foregoing embodiments.

[0021] The beneficial effects of the embodiments of the present utility model include, for example:

[0022] The high-pressure water heater of this solution includes a core body assembly, a heating element, a control housing, and a circuit board. Since the circuit board extends from the inside of the control housing to the upper part of the control housing to complete the direct connection between the circuit board and the heating element. Compared with the prior art in which the heating element is connected to the printed board through a bus bar and a metal plug-in connection method, which causes problems such as the risk of poor plug-in connection and high cost. In this solution, the electrodes of the heating element are directly connected to the circuit board by soldering and converge on the circuit board, thus eliminating the bus bar assembly. This solution can not only effectively solve the problem of poor plug-in connection between the electrode piece and the metal buckle, and between the metal piece and the metal buckle, but also reduce the number of parts and the assembly man-hours, simplify the assembly process, and thus reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for use in the embodiments. It should be understood that the following attached drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation on the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0024] Figure 1 Structural schematic diagram of the high-pressure water heater according to the embodiment of the present utility model;

[0025] Figure 2 Structural schematic diagram of the high-pressure water heater from another perspective according to the embodiment of the present utility model;

[0026] Figure 3 Structural schematic diagram of the high-pressure water heater from yet another perspective according to the embodiment of the present utility model;

[0027] Figure 4 Cross-sectional structural schematic diagram of the high-pressure water heater according to the embodiment of the present utility model.

[0028] Icons: 100 - core component; 200 - heating element; 300 - control shell; 310 - connection hole; 400 - circuit board; 401 - stepped portion; 410 - first component; 420 - second component; 500 - controller; A - height direction of the circuit board; B - length direction of the circuit board. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the attached drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present utility model provided in the attached drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0031] It should be noted that: similar reference numerals and letters represent similar items in the following attached drawings. Therefore, once an item is defined in one attached drawing, it does not need to be further defined and explained in subsequent attached drawings.

[0032] In the description of the present utility model, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0033] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions, they should not be construed as indicating or implying relative importance.

[0034] It should be noted that, without conflict, the features in the embodiments of the present utility model can be combined with each other.

[0035] In the existing technical solution, the positive and negative electrodes of the PTC heating component are connected to the metal sheet on the busbar assembly through the metal buckle on the busbar assembly. This metal sheet is connected to the PCB through the metal buckle on the PCB, and the PCB is fixed on the housing of the controller 500.

[0036] Such a setting method has the risk of poor connection between the electrode sheet and the metal buckle, and between the metal sheet and the metal buckle, and is costly.

[0037] To improve the above technical problems, a high-pressure water heater is provided in the following embodiments.

[0038] Please refer to Figure 1 , this embodiment provides a high-pressure water heater, including a core component 100, a heating element 200, a control housing 300, and a circuit board 400.

[0039] The core component 100 is arranged on the upper part of the control housing 300;

[0040] The circuit board 400 is arranged in the control housing 300, and along the height direction A of the circuit board, the circuit board 400 includes a second component 420 located inside the control housing 300 and a first component 410 extending to the upper part of the control housing 300;

[0041] One end of the heating element 200 is arranged in the core component 100, and the other end is fixedly connected to the first component 410 of the circuit board 400.

[0042] In this embodiment of the present utility model, a through connection hole 310 is provided at the top of the control housing 300; the circuit board 400 passes through the connection hole 310, and the second component 420 is located below the connection hole 310, and the first component 410 is located above the connection hole 310.

[0043] The high-pressure water heater of this solution includes a core component 100, a heating element 200, a control housing 300, and a circuit board 400. Since the circuit board 400 extends from the inside of the control housing 300 to the upper part of the control housing 300 to complete the direct connection between the circuit board 400 and the heating element 200. Compared with the prior art where the heating element and the printed board are connected through a bus bar and a metal plug-in connection method, which causes problems such as the risk of poor plug-in connection and high cost. In this solution, the electrodes of the heating element 200 are directly connected to the circuit board 400 by welding and converge on the circuit board 400, thus eliminating the bus bar assembly. Specifically, the circuit board 400 of this solution extends from inside the control housing 300 to outside the control housing 300, so as to realize the direct connection between the heating element 200 and the circuit board 400. This not only eliminates the intermediate transition of the bus bar, can significantly reduce the number of parts, and simplifies the overall structure; but also changes the plug-in fit in the prior art to the direct connection between the heating element 200 and the circuit board 400, improving the problem that plugging may cause poor contact and affect the working stability of the heater. And the direct connection can also eliminate components such as metal sheets and metal buckles, further simplifying the structure and reducing the cost. In summary, the high-pressure water heater can not only effectively solve the problem of poor plug-in connection between the electrode plate and the metal buckle, and between the metal sheet and the metal buckle, but also reduce the number of parts and assembly man-hours, simplify the assembly process, and thus reduce the cost.

[0044] Please continue to refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 to understand more structural details of the high-pressure water heater.

[0045] It should be noted that the circuit board 400 is of an integral structure and does not have a first component 410 and a second component 420 with obvious separation. The first component 410 and the second component 420 are only names used to distinguish the upper and lower parts of the circuit board 400 located above and below the connection hole 310.

[0046] The height direction A of the circuit board, the height direction of the first component 410, and the height direction of the second component 420 are the same direction, that is, direction A;

[0047] The length direction B of the circuit board, the length direction of the first component 410, and the length direction of the second component 420 are the same direction, that is, direction B.

[0048] In this embodiment of the present invention, the heating element 200 is welded to the circuit board 400. That is, the circuit board 400 is directly connected to the electrodes of the MCH heating element 200 by welding and converges on the circuit board 400. This significantly simplifies the assembly and installation method, while reducing costs, improving connection stability and reliability.

[0049] Optionally, in this embodiment, the heating element 200 is an MCH ceramic heating sheet. Compared with the PTC ceramic heating sheet, the MCH ceramic heating element uses alumina ceramic, which is a new type of high-efficiency, environmentally friendly and energy-saving ceramic heating element with an internal electric heating wire. Compared with the PTC ceramic heating element, it can save 20-30% of electric energy under the same heating effect. Moreover, the surface of the MCH ceramic heating element product is not charged, and the water and electricity are isolated during the working process; it has a small volume, a large power density, a fast heating rate, and a high thermal efficiency; it has good safety; it does not contain lead and meets the environmental protection requirements.

[0050] Optionally, in this embodiment of the present utility model, the circuit board 400 is a PCB board. The PCB (Printed Circuit Board), whose Chinese name is printed circuit board 400, also known as printed circuit board 400 and printed wiring board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Since it is made by electronic printing technology, it is called a "printed" circuit board 400.

[0051] As can be seen from the figure, in this embodiment of the present utility model, the connection hole 310 is elongated, and the length direction B of the circuit board matches the extension direction of the connection hole 310; the length of the connection hole 310 is greater than or equal to the length of the first component 410, and the width of the connection hole 310 is greater than or equal to the width of the circuit board 400. Here, the circuit board 400 is a flat plate with a uniform thickness. Specifically, the connection hole 310 is an elongated rectangular hole.

[0052] The size of the connection hole 310 is matched with the size of the circuit board 400, which not only ensures that the circuit board 400 can extend smoothly above the control shell 300, but also avoids the connection hole 310 being too large and affecting the assembly of components such as the core assembly 100.

[0053] Furthermore, as Figure 1 and Figure 2 shown, in this embodiment of the present utility model, along the length direction B of the circuit board, the length of the second component 420 is greater than the length of the first component 410, and the bottom of the first component 410 and the end of the length direction of the second component 420 form a step portion 401; the step portion 401 can abut against the top inner wall of the control shell 300. Here, the step portion 401 is used to show the distinction between the first component 410 and the second component 420 on the one hand, and as a mating point for the first component 410 to be assembled in place on the other hand, so as to ensure that the circuit board 400 can be accurately and stably arranged at the connection hole 310.

[0054] From Figure 2 and Figure 3It can also be seen that in this embodiment of the present utility model, along the length direction B of the circuit board, the first component 410 is located in the middle of the second component 420. That is, both ends of the first component 410 have a stepped portion 401, and the two stepped portions 401 respectively abut against the edges of the connection holes 310.

[0055] In this embodiment of the present utility model, it further includes a controller 500, and the controller 500 is fixedly arranged in the control shell 300; the controller 500 is fixedly connected to the second component 420. Further, the controller 500 is connected to the second component 420 by welding. In this way, the first component 410 of the circuit board 400 is connected to the heating element 200 by welding, and the second component 420 of the circuit board 400 is connected to the controller 500 by welding, so that both the upper and lower parts of the circuit board 400 can be stably supported.

[0056] In a second aspect, the present utility model provides a thermal management device, and the thermal management device includes the high-pressure water heater in any one of the foregoing embodiments. Such a thermal management device has the advantages of simple structure, good stability and reliability.

[0057] In summary, the embodiments of the present utility model provide a high-pressure water heater, which has at least the following advantages:

[0058] The circuit board 400 of the high-pressure water heater extends from the inside of the control shell 300 to the upper part of the control shell 300 to complete the direct connection between the circuit board 400 and the heating element 200. Compared with the prior art in which the heating element and the printed board are connected through a bus bar and a metal plug-in connection, resulting in problems such as the risk of poor plug-in connection and high cost. In this solution, the electrodes of the heating element 200 are directly connected to the circuit board 400 by welding and converge on the circuit board 400, thereby canceling the bus bar assembly. This solution can not only effectively solve the problem of poor plug-in connection between the electrode plate and the metal buckle, and between the metal sheet and the metal buckle, but also reduce the number of parts and the assembly man-hours, simplify the assembly process, and thus reduce the cost.

[0059] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A high pressure water heater, characterized in that: include: A core assembly (100), a heating element (200), a control housing (300), and a circuit board (400); The core assembly (100) is arranged on the upper part of the control housing (300); The circuit board (400) is arranged on the control housing (300), and along a height direction (A) of the circuit board, the circuit board (400) comprises a second component (420) located inside the control housing (300), and a first component (410) extending to the upper part of the control housing (300); One end of the heating element (200) is disposed in the core component (100), and the other end is fixedly connected to the first component (410) of the circuit board (400).

2. The high pressure water heater according to claim 1, characterized in that: The top of the control housing (300) is provided with a penetrating connection hole (310); the circuit board (400) is provided with the connection hole (310), and the second component (420) is located below the connection hole (310), and the first component (410) is located above the connection hole (310).

3. The high pressure water heater according to claim 2, characterized in that: The connection hole (310) is in the shape of an elongated strip, and the length direction (B) of the circuit board matches the extension direction of the connection hole (310); the length of the connection hole (310) is greater than or equal to the length of the first component (410), and the width of the connection hole (310) is greater than or equal to the width of the circuit board (400).

4. The high pressure water heater according to claim 3, characterized in that: Along the length direction (B) of the circuit board, the length of the second component (420) is greater than the length of the first component (410), and the bottom of the first component (410) and the end of the second component (420) in the length direction form a step portion (401); the step portion (401) can be supported on the top inner wall of the control housing (300).

5. The high pressure water heater according to claim 4, characterized in that: Along the length direction (B) of the circuit board, the first component (410) is located in the middle of the second component (420).

6. The high pressure water heater according to claim 1, characterized in that: It also includes a controller (500), wherein the controller (500) is fixedly disposed in the control housing (300); the controller (500) is fixedly connected to the second component (420).

7. The high pressure water heater according to claim 1, characterized in that: The heating element (200) is connected to the circuit board (400) by welding.

8. The high pressure water heater according to claim 1, characterized in that: The heating element (200) is an MCH ceramic heating sheet.

9. The high pressure water heater according to claim 1, characterized in that: The circuit board (400) is a PCB board.

10. A thermal management device, characterized in that: The thermal management device comprises a high pressure water heater as claimed in any one of claims 1 to 9.

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