Heater for vehicle

Abstract

The utility model provides a vehicle heater. The vehicle heater comprises a shell and a heating assembly. The heating assembly is arranged in the shell and comprises a heating core body, a water inlet pipe, a water outlet pipe, a heating film, a control device and a heat conduction structure, the heating core body is provided with a first surface, a first side face and a second side face, the first side face and the second side face are connected to the two sides of the first surface, and a plurality of flow channels are formed in the heating core body; the multiple runners are arranged at intervals in the first direction and penetrate through the first side face and the second side face; the water inlet pipe is connected to the first side face and communicates with the multiple flow channels. The water outlet pipe is connected to the second side face and communicates with the multiple flow channels. The heating film is arranged on the first surface; the heating film is used for heating liquid entering the runner; the control device is electrically connected with the heating film; the heat conduction structure is connected between the control device and the water inlet pipe and / or the water outlet pipe and used for guiding heat generated by the control device to the water inlet pipe and / or the water outlet pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating equipment, in particular to a vehicle heater. BACKGROUND

[0002] The vehicle heater is usually provided with a control device, such as an insulated gate bipolar transistor (IGBT), for controlling the heating efficiency, so as to accurately adjust the heating power of the vehicle heater by controlling the on and off of the control device.

[0003] However, during the operation of the control device, a large amount of heat will inevitably be generated due to the internal electronic transition and current conduction and other physical processes. If the heat cannot be effectively dissipated in time, the temperature of the chip of the control device will rise sharply. Once the temperature of the chip exceeds a certain threshold, the electrical performance of the control device will change, such as an increase in on-resistance and a decrease in switching speed, thereby affecting the heating effect of the vehicle heater. CONTENT OF THE UTILITY MODEL

[0004] The present application discloses a vehicle heater which can maintain the temperature of the control device within a reasonable range, avoid performance degradation or failure risk of the control device due to overheating, and ensure the heating effect of the vehicle heater.

[0005] In order to achieve the above-mentioned purpose, the present application discloses a vehicle heater, comprising:

[0006] a housing;

[0007] a heating assembly arranged in the housing, the heating assembly comprising:

[0008] a heating core having a first surface, a first side and a second side, the first side and the second side being connected to both sides of the first surface, a plurality of flow channels being formed in the heating core, the plurality of flow channels being arranged in a first direction, the flow channels penetrating through the first side and the second side;

[0009] a water inlet pipe connected to the first side and communicating with the plurality of flow channels, the water inlet pipe comprising a water inlet port for communicating with a liquid source;

[0010] a water outlet pipe connected to the second side and communicating with the plurality of flow channels, the water outlet pipe comprising a water outlet port;

[0011] a heating film arranged on the first surface, the heating film being used for heating the liquid entering the flow channels;

[0012] a control device electrically connected to the heating film and used for controlling the heating power of the heating film;

[0013] a heat-conducting structure connected between the control device and the water inlet pipe, the heat-conducting structure being configured to guide heat generated by the control device to the water inlet pipe; or

[0014] a heat-conducting structure connected between the control device and the water outlet pipe, the heat-conducting structure being configured to guide heat generated by the control device to the water outlet pipe.

[0015] In this way, the heat-conducting structure is connected between the control device and the water inlet pipe or the water outlet pipe, so that the heat-conducting structure guides heat generated by the control device to the water inlet pipe or the water outlet pipe, and through heat conduction of the heat-conducting structure, the cooling liquid carries away part of the heat generated by the control device, which helps to maintain the temperature of the control device in a reasonable range, avoids the risk of performance degradation or failure of the control device due to overheating, and ensures the heating effect of the vehicle heater.

[0016] In some embodiments of the present application, the heat-conducting structure is connected between the control device and the water inlet pipe, and the heat-conducting structure is configured to guide heat generated by the control device to the water inlet pipe, and the heat-conducting structure is connected between the control device and the water outlet pipe, and the heat-conducting structure is configured to guide heat generated by the control device to the water outlet pipe.

[0017] In this way, the heat of the control device can be guided to the water inlet pipe and the water outlet pipe at the same time, which widens the heat dissipation path, and the cooling liquid in the water inlet pipe has a relatively low temperature and can quickly absorb the heat conducted from the control device to rapidly reduce the temperature of the control device.

[0018] In some embodiments of the present application, the water inlet pipe has a first closed end face opposite the water inlet port;

[0019] the heat-conducting structure is connected between the control device and the first closed end face, and the heat-conducting structure is configured to guide heat generated by the control device to the first closed end face.

[0020] In this way, the first closed end face of the water inlet pipe is used to construct a heat conduction connection with the control device, and a large area of heat dissipation space region needs to be separately provided for the control device, compared with the traditional way of setting large heat dissipation fins or complex air cooling channels around the control device, and this layout greatly saves the extra space occupation.

[0021] In some embodiments of the present application, the water outlet pipe has a second closed end face opposite the water inlet port;

[0022] the heat-conducting structure is connected between the control device and the second closed end face, and the heat-conducting structure is configured to guide heat generated by the control device to the second closed end face.

[0023] Thus, the second closed end surface of the water outlet pipe is used to construct and control the heat conduction connection with the control device, without separately opening a large area of heat dissipation space region for the control device. Compared with the traditional method of arranging large heat dissipation fins or complex air cooling channels around the control device, this layout greatly saves the additional space occupation.

[0024] In some embodiments of the present application, the heating assembly further comprises:

[0025] A circuit board is arranged opposite to the first closed end surface along the first direction, and the control device is arranged on the circuit board.

[0026] The heat conduction structure comprises:

[0027] A heat conduction pad is connected between the control device and the first closed end surface along the first direction.

[0028] Thus, the heat conduction pad is used to connect the control device and the first closed end surface of the water inlet pipe, which does not require complex heat dissipation structure design, such as large heat dissipation fins or additional air cooling devices, which helps to reduce the volume of the heating assembly and even the entire vehicle heater, makes the layout of each component more compact and reasonable, and can free up more space for other components or systems in the limited vehicle interior space, and also facilitates the installation and maintenance of the heater system.

[0029] In some embodiments of the present application, the heating assembly further comprises:

[0030] A circuit board is arranged opposite to the second closed end surface along the first direction, and the control device is arranged on the circuit board.

[0031] The heat conduction structure comprises:

[0032] A heat conduction pad is connected between the control device and the second closed end surface along the first direction.

[0033] Thus, the heat conduction pad is used to connect the control device and the second closed end surface of the water outlet pipe, which does not require complex heat dissipation structure design, such as large heat dissipation fins or additional air cooling devices, which helps to reduce the volume of the heating assembly and even the entire vehicle heater, makes the layout of each component more compact and reasonable, and can free up more space for other components or systems in the limited vehicle interior space, and also facilitates the installation and maintenance of the heater system.

[0034] In some embodiments of the present application, the area of the heat conduction pad is greater than or equal to the area of the surface of the control device abutting the heat conduction pad.

[0035] Therefore, the heat-conducting pad can completely cover the heat-emitting surface of the control device, so that the heat generated by the control device can be fully absorbed by the heat-conducting pad, and the situation that part of the heat cannot be timely conducted due to insufficient contact area is avoided, thereby improving the heat transfer efficiency from the control device to the heat-conducting pad and ensuring that the heat dissipation effect of the control device reaches the best state.

[0036] In some embodiments of the present application, the thickness of the heat-conducting pad is 0.1mm-0.5mm.

[0037] Therefore, the thickness of 0.1mm-0.5mm enables the heat-conducting pad to be closely attached to the control device and the first closed end face under a certain installation pressure, and the heat-conducting pad will not be in poor contact or generate a large contact thermal resistance due to excessive thickness. The close contact ensures that the heat can be effectively transferred between the control device and the heating core through the heat-conducting pad, and the heat-conducting effect of the heat-conducting pad is maximized.

[0038] In some embodiments of the present application, the vehicle heater further comprises:

[0039] The pressing plate is connected with the shell and presses the control device toward the heating core in the first direction.

[0040] Therefore, the pressing plate presses the control device toward the heating core in the first direction, so that the relative position of the control device and the heating core in space is more compact and fixed. In the limited internal space of the vehicle heater, this compact layout avoids the need to reserve additional space to prevent interference with other components due to the loosening or displacement of the control device.

[0041] In some embodiments of the present application, the water inlet pipe has a first outer pipe wall;

[0042] The heat-conducting structure is connected between the control device and the first outer pipe wall, and the heat-conducting structure is used to guide the heat generated by the control device to the first outer pipe wall.

[0043] Therefore, the first outer pipe wall has a certain length, which provides relatively flexible space conditions for the connection of the heat-conducting structure. The heat-conducting structure can be diversified in design and installation according to the shape of the water inlet pipe and the position of the control device, and can better adapt to the complex space environment inside the vehicle heater.

[0044] In some embodiments of the present application, the water outlet pipe has a second outer pipe wall;

[0045] The heat-conducting structure is connected between the control device and the second outer pipe wall, and the heat-conducting structure is used to guide the heat generated by the control device to the second outer pipe wall.

[0046] Therefore, the second outer tube wall has a certain length, which provides relatively flexible space conditions for the connection of the heat conduction structure, and the heat conduction structure can be variously designed and installed according to the shape of the outlet pipe and the position of the control device, so as to better adapt to the complex space environment inside the vehicle heater.

[0047] In some embodiments of the present application, the heat conduction structure comprises:

[0048] The heat conduction support is arranged on one side of the heating core body in the thickness direction, and the heat conduction support is connected with the first outer tube wall and the second outer tube wall respectively, and the control device is arranged on the heat conduction support and is in heat conduction connection with the heat conduction support.

[0049] Therefore, by connecting the heat conduction support with the first outer tube wall and the second outer tube wall respectively, and connecting the control device with the heat conduction support in heat conduction connection, an efficient heat dissipation channel is provided for the control device, heat can be conducted from the control device to the heat conduction support, and then uniformly dispersed to the first outer tube wall and the second outer tube wall through the heat conduction support, and the heat is taken away by the flow of the cooling liquid in the inlet pipe and the outlet pipe, effectively avoiding the overheating problem of the control device caused by heat accumulation, ensuring stable work of the control device in a suitable temperature environment, and improving the heat dissipation efficiency and reliability.

[0050] In some embodiments of the present application, the heat conduction structure further comprises:

[0051] The heat conduction pad is connected between the heat conduction surface of the heat conduction support and the control device.

[0052] Therefore, the heat conduction pad has good heat conduction performance, and by filling it between the heat conduction surface of the heat conduction support and the control device, the possible small gap between them can be effectively filled, the contact thermal resistance is reduced, the heat generated by the control device can be more smoothly conducted to the heat conduction support through the heat conduction pad, and then transmitted to the inlet pipe and the outlet pipe for heat dissipation, thereby improving the heat conduction efficiency of the whole heat conduction path and ensuring better heat dissipation effect of the control device.

[0053] In some embodiments of the present application, the heat conduction support comprises:

[0054] The mounting portion is arranged opposite to the first surface along the thickness direction of the heating core body, and the control device is mounted on the mounting portion.

[0055] The first connecting portion is connected between the first end of the mounting portion and the first outer tube wall.

[0056] The second connecting portion is connected between the second end of the mounting portion and the second outer tube wall.

[0057] Thus, the installation portion is connected with the first outer pipe wall of the water inlet pipe and the second outer pipe wall of the water outlet pipe through the first connecting portion and the second connecting portion, thereby providing two direct and efficient heat dissipation paths for the control device, and the heat generated by the control device can be quickly conducted to the first connecting portion and the second connecting portion through the installation portion, and then transmitted to the water inlet pipe and the water outlet pipe respectively, so that the heat is taken away by the flow of the cooling liquid in the pipes, the heat dissipation efficiency is improved, the control device is effectively prevented from overheating, and stable work of the control device is ensured. In addition, the double-connection structure enables the heat to be conducted from both ends of the installation portion to the water inlet pipe and the water outlet pipe at the same time, avoids the local overheating phenomenon caused by the heat being concentrated in a certain place, makes the heat more evenly distributed in the entire heat conduction bracket and water pipe system, further improves the heat dissipation effect, and is beneficial to prolonging the service life of the control device and the entire system.

[0058] In some embodiments of the present application, the first outer pipe wall and the second outer pipe wall protrude from the first surface in the thickness direction of the heating core;

[0059] The installation portion is recessed to form a recessed cavity toward the first surface, and the control device is installed in the recessed cavity.

[0060] Thus, the first outer pipe wall and the second outer pipe wall protrude from the first surface in the thickness direction of the heating core, and the installation portion recesses to form a recessed cavity toward the first surface to install the control device, thereby fully utilizing the three-dimensional space around the heating core, enabling the control device to be embedded in the recessed cavity, realizing compact layout of the internal structure of the vehicle heater, improving the space utilization rate, and being conducive to miniaturization design of the vehicle heater, making it easier to install and arrange in the limited space of the vehicle.

[0061] In some embodiments of the present application, the depth of the recessed cavity matches the thickness of the control device in the thickness direction of the heating core.

[0062] Thus, the precise matching of the depth of the recessed cavity and the thickness of the control device fully utilizes the limited space resources, provides a suitable installation position for the control device, and does not waste space due to unreasonable design of the recessed cavity, which is conducive to realizing compact design of the internal structure of the vehicle heater and improving the space utilization rate.

[0063] In some embodiments of the present application, the lower surface of the installation portion has a preset gap with the first surface.

[0064] Therefore, the gap provides a channel for air flow, facilitates heat transfer and dissipation between components, hot air can flow upward through the gap to take away the heat generated by the control device and other components, while cold air around can be supplemented from the gap to form natural air convection, improve the heat dissipation efficiency, help the control device and other components work in the appropriate temperature range, and the existence of the gap can reduce the electromagnetic coupling between the mounting portion and the first surface to some extent, reduce the propagation path of electromagnetic interference, thereby improving the electromagnetic compatibility of the vehicle heater.

[0065] In some embodiments of the present application, the height of the preset gap is 5-10 mm.

[0066] Therefore, the gap with the height in this range reduces the electromagnetic coupling between the mounting portion and the first surface, reduces the propagation path of electromagnetic interference, optimizes the electromagnetic environment of the vehicle heater, improves its electromagnetic compatibility, and also avoids the heat-conducting bracket occupying too much space in the thickness direction of the heating core.

[0067] In some embodiments of the present application, along the thickness direction of the heating core, the first heat-conducting platform is arranged on the side surface of the water inlet pipe facing the control device, and the first connecting portion is mounted on the first heat-conducting platform.

[0068] Along the thickness direction of the heating core, the second heat-conducting platform is arranged on the side surface of the water outlet pipe facing the control device, and the second connecting portion is mounted on the second heat-conducting platform.

[0069] Therefore, compared with irregular water inlet pipe and water outlet pipe surface contact, the heat conduction path is shorter and the contact is more sufficient, which can more efficiently transfer heat to the coolant in the water outlet pipe to achieve rapid heat dissipation, and the second heat-conducting platform provides a stable mounting position for the second connecting portion, so that the heat conduction between the two is not easily interrupted or unstable due to vehicle vibration and other factors.

[0070] In some embodiments of the present application, along the thickness direction of the heating core, the first connecting portion is provided with a first heat-conducting fin on the surface facing the water inlet pipe, and the first heat-conducting fin is used to guide the heat of the mounting portion towards the water inlet pipe.

[0071] Along the thickness direction of the heating core, the second connecting portion is provided with a second heat-conducting fin on the surface facing the water outlet pipe, and the second heat-conducting fin is used to guide the heat of the mounting portion towards the water outlet pipe.

[0072] Thus, the first heat-conducting fin increases the effective contact area between the first connecting part and the water inlet pipe, and the second heat-conducting fin increases the effective contact area between the second connecting part and the water outlet pipe, reducing the loss and hindrance of heat in the transmission process, and guiding the heat generated by the mounting part more directly to the water inlet pipe and the water outlet pipe.

[0073] In some embodiments of the present application, the heat-conducting bracket is a one-piece metal bracket.

[0074] Thus, the metal itself has good heat-conducting performance, such as commonly used metal materials such as copper and aluminum, which have high heat conductivity coefficients and can quickly transmit heat. The one-piece structure avoids additional thermal resistance that may be caused by the connection of different parts, so that heat can be conducted without resistance in the heat-conducting bracket, smoothly transmitted from the mounting part where the control device is located to the first connecting part and the second connecting part connected to the water inlet pipe and the water outlet pipe, ensuring the efficiency of the entire heat conduction path and helping to improve the heat dissipation efficiency.

[0075] In some embodiments of the present application, the heating assembly further comprises:

[0076] The circuit board is arranged opposite to the end of the heating core body in the first direction, and the control device is electrically connected to the circuit board.

[0077] Thus, the circuit board is arranged opposite to the end of the heating core body in the first direction, making full use of the space near the end of the heating core body, so that the circuit board has a suitable and relatively regular placement position in the vehicle heater, helping to realize the compactness of the entire heating assembly layout, improve the utilization rate of the limited space inside the vehicle heater, and make it easier to install and adapt in the limited space environment of the vehicle.

[0078] In some embodiments of the present application, the vehicle heater further comprises:

[0079] The pressing plate is connected to the housing and presses the control device toward the first surface in the thickness direction of the heating core body.

[0080] Thus, by pressing the control device, the pressing plate makes the contact between the control device and the heat-conducting bracket or other heat-dissipating related components (such as the heat-conducting structure corresponding to the water inlet pipe and the water outlet pipe) more close and uniform. Close contact can reduce contact thermal resistance, allowing heat to be more smoothly conducted away from the control device, optimizing the heat conduction path and improving the heat dissipation efficiency, so that the heat generated by the control device can be quickly transmitted to the corresponding heat-dissipating components (such as the water inlet pipe and the water outlet pipe through the heat-conducting bracket), and then carried away by the cooling liquid, helping the control device to work stably within a suitable temperature range.

[0081] In some embodiments of the present application, the material of the heating core comprises metal aluminum.

[0082] Thus, since metal aluminum has good thermal conductivity, it can quickly transfer heat to each part of the heating core, thereby improving the heating efficiency, which helps to ensure that the heating core reaches the required temperature in a short time and maintains stable heating effect.

[0083] In some embodiments of the present application, the heating core is integrally formed by an extrusion process.

[0084] Thus, the extrusion molding process can make the materials of the heating core more closely combined together, reduce the generation of internal defects and cracks, thereby improving the overall structural strength, which helps to resist external pressure and thermal stress, and ensure the stability and reliability of the heating core in long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0085] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0086] Figure 1 is a schematic view of a vehicle heater provided by an embodiment of the present application;

[0087] Figure 2 is a schematic view of a heating assembly provided by an embodiment of the present application;

[0088] Figure 3 is a schematic view of a heating core provided by an embodiment of the present application;

[0089] Figure 4 is a schematic view of a partial structure of a heating assembly provided by an embodiment of the present application;

[0090] Figure 5 is Figure 4 a sectional view at B-B in FIG. 8;

[0091] Figure 6 is an exploded view of a heating assembly provided by an embodiment of the present application;

[0092] Figure 7 is a front view of a heating assembly provided by an embodiment of the present application;

[0093] Figure 8 is Figure 7 a sectional view at C-C in FIG. 9;

[0094] Figure 9 is Figure 8Enlarged view of the middle D;

[0095] Figure 10 is a schematic view of a vehicle heater provided by another embodiment of the present application;

[0096] Figure 11 is a schematic view of a heating assembly provided by another embodiment of the present application;

[0097] Figure 12 is an exploded view of a heating assembly provided by another embodiment of the present application;

[0098] Figure 13 is a schematic view of a heat-conducting bracket provided by another embodiment of the present application;

[0099] Figure 14 is a side view of a heating assembly provided by another embodiment of the present application;

[0100] Figure 15 is a schematic view of a partial structure of a heating assembly provided by another embodiment of the present application;

[0101] Figure 16 is a schematic view of another perspective of a heat-conducting bracket provided by another embodiment of the present application.

[0102] Main reference numeral explanation

[0103] 1000 - vehicle heater;

[0104] 10 - housing; 20 - circuit board; 30 - pressing plate;

[0105] A - heating assembly;

[0106] 1 - heating core; 1a - first surface; 1b - first side surface; 1c - second side surface; 11 - flow passage;

[0107] 2 - water inlet pipe; 2a - water inlet; 2b - first closed end surface; 2c - first heat-conducting platform;

[0108] 3 - water outlet pipe; 3a - water outlet; 3b - second closed end surface; 3c - second heat-conducting platform;

[0109] 100 - control means;

[0110] 200 - heat-conducting structure; 201 - heat-conducting pad; 202 - heat-conducting bracket; 202a - mounting portion; 202b - first connecting portion; 202b1 - first heat-conducting fin; 202c - second connecting portion; 202c1 - second heat-conducting fin; 203 - fastener. DETAILED DESCRIPTION

[0111] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0112] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0113] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0114] In addition, the terms "mount", "set", "provided with", "connected", "connected" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0115] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components, and the specific types and structures of which can be the same or different, and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0116] As mentioned in the background, during the operation of the control device, a large amount of heat will inevitably be generated due to the internal electronic transition and current conduction and other physical processes. If this heat cannot be effectively dissipated in time, the temperature of the chip of the control device will rise sharply. Once the chip temperature exceeds a certain threshold, the electrical performance of the control device will change, such as increased on-resistance, slower switching speed, etc., thereby affecting the heating effect of the vehicle heater.

[0117] To address the aforementioned issues, this application discloses a vehicle heater that can guide the heat generated by the control device to the inlet and outlet water pipes through a heat-conducting structure. This allows the coolant to carry away some of the heat generated by the control device, helping to maintain the temperature of the control device within a reasonable range. This avoids performance degradation or malfunction risks caused by overheating and ensures the heating effect of the vehicle heater.

[0118] The following will describe specific embodiments and appendices. Figures 1-16 The technical solution of the vehicle heater in this application will be further explained.

[0119] like Figure 1 As shown, this embodiment provides a vehicle heater 1000, which may include a housing 10.

[0120] like Figure 2 As shown, the vehicle heater 1000 may also include a heating component A disposed within the housing 10.

[0121] like Figures 3 to 5 As shown, the heating assembly A may further include a heating core 1, having a first surface 1a, a first side surface 1b, and a second side surface 1c. The first side surface 1b and the second side surface 1c are connected to both sides of the first surface 1a. A plurality of flow channels 11 are formed within the heating core 1, and the flow channels 11 are arranged at intervals along a first direction, penetrating through the first side surface 1b and the second side surface 1c. The flow channels 11 are used to circulate liquids such as coolant or water, so that the heating core 1 heats the liquid within the flow channels 11. The first direction is... Figure 4 The direction indicated by the middle arrow X.

[0122] like Figure 2 and Figure 3 As shown, the heating assembly A may also include a water inlet pipe 2, connected to the first side 1b and communicating with multiple flow channels 11. The water inlet pipe 2 includes a water inlet 2a, which is used to communicate with a liquid source. The water inlet pipe 2 is connected to an external source that provides coolant or water, and the coolant or water is transported into the flow channels 11 through the water inlet pipe 2.

[0123] like Figure 2 and Figure 3 As shown, the heating component A may also include a water outlet pipe 3, connected to the second side 1c and connected to multiple flow channels 11. The water outlet pipe 3 includes a water outlet 3a. The water outlet 3a is connected to the heating system in the vehicle. Heated coolant or water and other liquids are delivered to the heating system through the water outlet pipe 3, and the heating system provides warm air to the interior of the vehicle.

[0124] The heating component A may also include a heating film disposed on the first surface 1a, which is used to heat the liquid entering the flow channel 11.

[0125] As shown in Figure 2 The heating assembly A can further include a control device 100 electrically connected to the heating film for controlling the heating power of the heating film.

[0126] The control device 100 can be any form of control device 100 such as an insulated gate bipolar transistor (IGBT), a thyristor (SCR), a metal-oxide-semiconductor field-effect transistor (MOSFET), a relay, etc., which is not limited herein. In the present embodiment, the control device 100 can be an insulated gate bipolar transistor (IGBT).

[0127] As shown in Figure 6 The heating assembly A can further include a heat-conducting structure 200.

[0128] In some possible embodiments, as shown in Figure 6 The heat-conducting structure 200 can be connected between the control device 100 and the water inlet pipe 2, and the heat-conducting structure 200 is used to guide the heat generated by the control device 100 to the water inlet pipe 2.

[0129] In the working process of the vehicle heater 1000, the heating temperature of the cooling liquid by the heating core 1 is generally not more than 90°, and the heat generated by the control device 100 is generally about 120°, that is, the heat generated by the control device 100 is greater than the temperature of the cooling liquid heated by the heating core 1.

[0130] Therefore, the heat-conducting structure 200 is connected between the control device 100 and the water inlet pipe 2, so that the heat generated by the control device 100 is guided to the water inlet pipe 2 by the heat-conducting structure 200, and the heat generated by the control device 100 is taken away by the cooling liquid through the heat conduction of the heat-conducting structure 200, which helps to maintain the temperature of the control device 100 in a reasonable range, avoids the performance degradation or failure risk of the control device 100 due to overheating, and ensures the heating effect of the vehicle heater 1000.

[0131] In addition, the temperature of the cooling liquid can be raised by using part of the heat generated by the control device 100, and the heating load of the heating core 1 can be reduced, thereby improving the energy utilization efficiency of the entire vehicle heater 1000.

[0132] In addition, the dependence on additional heat dissipation devices can be reduced, and the overall volume and weight of the vehicle heater 1000 can be reduced, thereby optimizing the space layout and power performance of the vehicle.

[0133] In some possible embodiments, as shown in Figure 6 The heat-conducting structure 200 can be connected between the control device 100 and the water outlet pipe 3, and the heat-conducting structure 200 is used to guide the heat generated by the control device 100 to the water outlet pipe 3.

[0134] The heat-conducting structure 200 is connected between the control device 100 and the water outlet pipe 3, so that the heat generated by the control device 100 is guided to the water outlet pipe 3 by the heat-conducting structure 200, and the heat generated by the control device 100 is taken away by the cooling liquid through the heat conduction of the heat-conducting structure 200, which helps to maintain the temperature of the control device 100 in a reasonable range, avoids the performance degradation or failure risk of the control device 100 caused by overheating, and ensures the heating effect of the vehicle heater 1000.

[0135] In addition, the temperature of the cooling liquid can be raised by part of the heat generated by the control device 100, reducing the heating load of the heating core 1, thereby improving the energy utilization efficiency of the entire vehicle heater 1000.

[0136] In addition, the dependence on additional heat dissipation devices can be reduced, and the overall volume and weight of the vehicle heater 1000 can be reduced, thereby optimizing the space layout and power performance of the vehicle.

[0137] In some possible embodiments, as shown in Figure 6 the heat-conducting structure 200 is connected between the control device 100 and the water inlet pipe 2, and the heat-conducting structure 200 is used to guide the heat generated by the control device 100 to the water inlet pipe 2, and the heat-conducting structure 200 is connected between the control device 100 and the water outlet pipe 3, and the heat-conducting structure 200 is used to guide the heat generated by the control device 100 to the water outlet pipe 3.

[0138] In this way, on the one hand, the heat of the control device 100 can be guided to the water inlet pipe 2 and the water outlet pipe 3 at the same time, which widens the heat dissipation path. The cooling liquid in the water inlet pipe 2 has a relatively low temperature and can quickly absorb the heat conducted from the control device 100, so that the temperature of the control device 100 decreases rapidly. Although the cooling liquid in the water outlet pipe 3 has a relatively high temperature, it can also continuously take away the heat because it is in a circulating flow state, thereby avoiding the accumulation of heat at the control device 100. Compared with the heat conduction to a single water pipe or the use of a traditional heat dissipation method, this bidirectional heat dissipation method increases the heat dissipation efficiency and heat dissipation area, and can more effectively reduce the working temperature of the control device 100, so that the control device 100 is always in a relatively suitable working environment temperature range, thereby reducing the performance degradation, failure risk and service life shortening caused by high temperature, and the like. On the other hand, through the close connection between the heat-conducting structure 200 and the water pipe, the heat conduction is more direct and efficient, the heat loss and delay in the heat transfer process are reduced, the heat dissipation process can respond to the heat generation change of the control device 100 more timely, and the heat dissipation effect of the heat-conducting structure 200 on the control device 100 is improved.

[0139] In some possible embodiments, as shown in Figure 6 the water inlet pipe 2 has a first closed end surface 2b opposite the water inlet 2a.

[0140] AsFigure 7 and Figure 8 As shown in

[0141] In this way, the first closed end surface 2b of the water inlet pipe 2 is used to build a heat conduction connection with the control device 100, without separately reserving a large area of heat dissipation space for the control device 100. Compared with the traditional method of arranging large heat dissipation fins or complex air cooling channels around the control device 100, this layout greatly saves the additional space occupation. For example, if an independent air cooling heat dissipation device is used, sufficient space needs to be reserved around the control device 100 for air flow, which often leads to an increase in the volume of the entire vehicle heater 1000. However, the use of the first closed end surface 2b of the water inlet pipe 2 for heat dissipation makes the structure of the vehicle heater 1000 more compact.

[0142] In some possible embodiments, as shown in Figure 6 The water outlet pipe 3 has a second closed end surface 3b opposite the water inlet port 2a.

[0143] As shown in Figures 7 to 9 The heat conduction structure 200 is connected between the control device 100 and the second closed end surface 3b, and is used to guide the heat generated by the control device 100 to the second closed end surface 3b.

[0144] In this way, the second closed end surface 3b of the water outlet pipe 3 is used to build a heat conduction connection with the control device 100, without separately reserving a large area of heat dissipation space for the control device 100. Compared with the traditional method of arranging large heat dissipation fins or complex air cooling channels around the control device 100, this layout greatly saves the additional space occupation. For example, if an independent air cooling heat dissipation device is used, sufficient space needs to be reserved around the control device 100 for air flow, which often leads to an increase in the volume of the entire vehicle heater 1000. However, the use of the second closed end surface 3b of the water outlet pipe 3 for heat dissipation makes the structure of the vehicle heater 1000 more compact.

[0145] In some possible embodiments, as shown in Figure 2 and Figure 6 As shown in

[0146] As shown in Figures 6 to 9 The heat conduction structure 200 can include a heat conduction pad 201 connected between the control device 100 and the first closed end surface 2b in the first direction.

[0147] The heat-conducting pad 201 can be a silica gel heat-conducting pad 201, a graphite heat-conducting pad 201, a phase-change heat-conducting pad 201, a metal heat-conducting pad 201, or a carbon fiber heat-conducting pad 201, or any other form of heat-conducting pad 201, which is not limited herein. In this embodiment, the heat-conducting pad 201 can be made of polyimide or other high-voltage-resistant, high-insulation, and high-heat-conducting materials.

[0148] The heat-conducting pad 201 can be adhered to the first closed end surface 2b by heat-conducting and insulating adhesive, which can be a silicone polymer or other high-temperature-resistant, high-heat-conducting, and high-adhesion-strength combined glue.

[0149] In this way, the control device 100 generates heat during operation. Since it is arranged on the circuit board 20, the heat is first generated inside the control device 100 and then conducted to the surface in contact with the heat-conducting pad 201. Then, the heat is conducted along the heat-conducting pad 201, which transmits the heat on the surface of the control device 100 to the first closed end surface 2b of the water inlet pipe 2. After reaching the first closed end surface 2b, the heat is carried away by the flow of the cooling liquid in the water inlet pipe 2, thereby completing the entire heat-conducting process. The presence of the heat-conducting pad 201 provides a low-thermal-resistance channel, which can accelerate the heat transfer from the control device 100 to the water inlet pipe 2 compared to air or other low-thermal-conductivity media. This allows the heat generated by the control device 100 to be absorbed and carried away by the cooling liquid in time, effectively reducing the operating temperature of the control device 100 and ensuring its stable operation within an appropriate temperature range, thereby reducing the risk of performance degradation or failure caused by overheating.

[0150] Moreover, the heat-conducting pad 201 connects the control device 100 and the first closed end surface 2b of the water inlet pipe 2 in this way, which does not require complex heat dissipation structure design, such as large heat dissipation fins or additional air cooling devices, etc. This helps to reduce the volume of the heating assembly A and even the entire vehicle heater 1000, making the layout between components more compact and reasonable. In the limited vehicle interior space, more space can be left for other components or systems, and the installation and maintenance of the heater system are also facilitated.

[0151] In some possible embodiments, as shown in Figs. 1A and 1B, the heating assembly A can further include a circuit board 20, which is arranged opposite the second closed end surface 3b along the first direction, and the control device 100 is arranged on the circuit board 20. Figure 2 Figure 6 As shown in Figs. 1A and 1B, the heating assembly A can further include a circuit board 20, which is arranged opposite the second closed end surface 3b along the first direction, and the control device 100 is arranged on the circuit board 20.

[0152] As shown in Figs. 1A and 1B, the heating assembly A can further include a circuit board 20, which is arranged opposite the second closed end surface 3b along the first direction, and the control device 100 is arranged on the circuit board 20. Figures 6 to 9 ​As shown, the heat conduction structure 200 can include a heat conduction pad 201, which is connected between the control device 100 and the second closed end surface 3b in the first direction. The heat conduction pad 201 can be bonded to the second closed end surface 3b by a heat-conducting insulating adhesive, which can be selected from a silicone polymer or other high-temperature-resistant, high-heat-conducting, and high-adhesion-strength combined glue.

[0153] In this way, the control device 100 generates heat during operation. Since it is arranged on the circuit board 20, the heat is first generated inside the control device 100 and conducted to the surface in contact with the heat conduction pad 201. Then, the heat is conducted along the heat conduction pad 201, which transmits the heat on the surface of the control device 100 to the second closed end surface 3b of the water outlet pipe 3. After reaching the second closed end surface 3b, the heat is carried away by the flow of the cooling liquid in the water outlet pipe 3, thereby completing the entire heat conduction process. The presence of the heat conduction pad 201 provides a low-thermal-resistance channel that can accelerate the transfer of heat from the control device 100 to the water outlet pipe 3 compared to air and other low-thermal-conductivity media. This allows the heat generated by the control device 100 to be absorbed and carried away by the cooling liquid in a timely manner, effectively reducing the operating temperature of the control device 100 and ensuring its stable operation within an appropriate temperature range, thereby reducing the risk of performance degradation or failure caused by overheating.

[0154] Moreover, the use of the heat conduction pad 201 to connect the control device 100 and the second closed end surface 3b of the water outlet pipe 3 eliminates the need for complex heat dissipation structure designs, such as large heat dissipation fins or additional air cooling devices, which helps to reduce the size of the heating assembly A and even the entire vehicle heater 1000, making the layout of the components more compact and reasonable. In the limited space of the vehicle, more space can be left for other components or systems, and the installation and maintenance of the heater system are also facilitated.

[0155] In some possible embodiments, the area of the heat conduction pad 201 is greater than or equal to the area of the surface of the control device 100 that is in contact with the heat conduction pad 201.

[0156] If the area of the heat conduction pad 201 is smaller than the area of the surface of the control device 100, part of the heat generating area of the control device 100 will not be in full contact with the heat conduction pad 201, which will cause heat to accumulate in these non-contact areas and not be effectively conducted away through the heat conduction pad 201, thereby affecting the heat dissipation effect.

[0157] The area of the heat-conducting pad 201 in the embodiment is greater than or equal to the area of the surface of the control device 100 abutting against the heat-conducting pad 201, so that the heat-conducting pad 201 can completely cover the heat-generating surface of the control device 100, so that the heat generated by the control device 100 can be fully absorbed by the heat-conducting pad 201, and the situation that part of the heat cannot be timely conducted due to insufficient contact area does not occur, thereby improving the heat transfer efficiency from the control device 100 to the heat-conducting pad 201, ensuring that the heat dissipation effect of the control device 100 reaches the best state, and the large-area heat-conducting pad 201 can make the heat more evenly distributed on its surface, avoiding the problem of heat stress concentration caused by local overheating, when the heat is evenly conducted to the first closed end surface 2b of the water inlet pipe 2 through the heat-conducting pad 201, the cooling liquid in the water inlet pipe 2 can more evenly absorb the heat and take away, further improving the heat dissipation uniformity and stability of the entire heat dissipation system.

[0158] In some possible embodiments, the thickness of the heat-conducting pad 201 is 0.1mm-0.5mm.

[0159] The thickness of the heat-conducting pad 201 is 0.1mm-0.5mm, which avoids that the thickness of the heat-conducting pad 201 is too large to reduce the thermal resistance in the heat transfer process, so that the heat can be more quickly conducted from the control device 100 to the water inlet pipe 2 and the water outlet pipe 3, thereby improving the heat dissipation efficiency, ensuring that the heat generated by the control device 100 during the working process can be timely taken away by the cooling liquid, and the thickness of 0.1mm-0.5mm makes the heat-conducting pad 201 under a certain installation pressure can be tightly attached to the control device 100 and the first closed end surface 2b, and will not cause poor contact or generate a large contact thermal resistance due to excessive thickness, the tight contact ensures that the heat can be effectively transferred between the control device 100 and the heat-conducting pad 201, and the heat-conducting effect of the heat-conducting pad 201 is maximized.

[0160] In some possible embodiments, as shown in Figures 6 to 9 The vehicle heater 1000 can further include a pressing plate 30 connected with the shell 10 and pressing the control device 100 in the first direction.

[0161] The pressing plate 30 presses the control device 100 along the first direction towards the heating core 1, so that the control device 100 is more compactly fixed in space relative to the heating core 1. In the limited internal space of the vehicle heater 1000, this compact layout avoids the need to reserve additional space to prevent interference with other components due to the loosening or displacement of the control device 100. For example, without the fixing effect of the pressing plate 30, the control device 100 can be displaced due to bumps and vibrations during vehicle travel, requiring a larger safety gap around it. However, the presence of the pressing plate 30 reduces the need for such reserved space, thereby increasing the layout density of components in a unit of space and optimizing the space utilization efficiency within the vehicle heater 1000.

[0162] In some possible embodiments, the pressing plate 30 is generally a metal pressing plate 30 to improve the structural strength of the pressing plate 30.

[0163] In some possible embodiments, the water inlet pipe 2 has a first outer pipe wall.

[0164] As shown in Figures 10 to 12 The heat-conducting structure 200 is connected between the control device 100 and the first outer pipe wall, and is used to guide the heat generated by the control device 100 to the first outer pipe wall.

[0165] The first outer pipe wall has a certain length, providing relatively flexible space conditions for the connection of the heat-conducting structure 200. The heat-conducting structure 200 can be variously designed and installed according to the shape of the water inlet pipe 2 and the position of the control device 100, better adapting to the complex internal space environment of the vehicle heater 1000. For example, it can be designed as a curved heat-conducting sheet or heat-conducting pipe to fit the first outer pipe wall and effectively connect with the control device 100. This flexibility allows the heat-conducting structure 200 to skillfully avoid other key components such as sensors and valves, fully utilize the remaining space gap for heat conduction, avoid interference with the installation and layout of other components due to heat dissipation layout, further optimize the space allocation within the entire heater, and enable the components to coexist harmoniously in the limited space, thereby improving the overall utilization efficiency of the internal space of the vehicle heater 1000.

[0166] In addition, since it is connected with the first outer pipe wall of the water inlet pipe 2, the structural strength and fixing method of the water inlet pipe 2 itself can provide certain support for the heat-conducting structure 200. In contrast, if a separate heat dissipation device is provided for the control device 100 away from other components, additional support structures are often needed to fix the heat dissipation device and ensure its stability, which occupies additional space. However, using the outer pipe wall of the water inlet pipe 2 for heat dissipation can reduce or even eliminate the need for such additional support structure design and installation, saving this part of space and making the internal space of the vehicle heater 1000 more simple and orderly, thereby significantly improving the space utilization efficiency.

[0167] In some possible embodiments, the water outlet pipe 3 has a second outer pipe wall.

[0168] As shown in Figures 10 to 12 , the heat conduction structure 200 is connected between the control device 100 and the second outer pipe wall, and the heat conduction structure 200 is used to guide the heat generated by the control device 100 to the second outer pipe wall.

[0169] The second outer pipe wall has a certain length, which provides relatively flexible space conditions for the connection of the heat conduction structure 200. The heat conduction structure 200 can be diversified in design and installation according to the shape of the water outlet pipe 3 and the position of the control device 100, and can better adapt to the complex space environment inside the vehicle heater 1000. For example, it can be designed as a curved heat conduction sheet or a heat conduction pipe to fit the second outer pipe wall and effectively connect with the control device 100. Such flexibility enables the heat conduction structure 200 to skillfully avoid other key components such as sensors and valves, fully utilize the remaining space gap for heat conduction, avoid interference with the installation and layout of other components due to heat dissipation layout, further optimize the space allocation inside the entire heater, and make each component coexist harmoniously in the limited space, thereby improving the comprehensive utilization efficiency of the internal space of the vehicle heater 1000.

[0170] In addition, since it is connected with the second outer pipe wall of the water outlet pipe 3, the structural strength and fixing mode of the water outlet pipe 3 itself can provide certain support for the heat conduction structure 200. In comparison, if a separate heat dissipation device is provided for the control device 100 away from other components, additional support structures are often needed to fix the heat dissipation device and ensure its stability. These support structures will occupy additional space, while using the outer pipe wall of the water outlet pipe 3 for heat dissipation can reduce or even omit the design and installation of such additional support structures, saving this part of space, making the internal space of the vehicle heater 1000 more simple and orderly, and significantly improving the space utilization rate.

[0171] In some possible embodiments, as shown in Figures 10 to 12 , the heat conduction structure 200 can include a heat conduction bracket 202, which is arranged on one side of the heating core body 1 in the thickness direction, and the heat conduction bracket 202 is connected with the first outer pipe wall and the second outer pipe wall respectively. The control device 100 is arranged on the heat conduction bracket 202 and is in heat conduction connection with the heat conduction bracket 202.

[0172] By connecting the heat-conducting bracket 202 with the first outer pipe wall and the second outer pipe wall respectively, and meanwhile connecting the control device 100 with the heat-conducting bracket 202 in heat conduction, an efficient heat dissipation channel is provided for the control device 100, heat can be conducted from the control device 100 to the heat-conducting bracket 202, and then evenly dispersed to the first outer pipe wall and the second outer pipe wall through the heat-conducting bracket 202, and then taken away by the flowing cooling liquid in the water inlet pipe 2 and the water outlet pipe 3, effectively avoiding the overheating problem of the control device 100 caused by heat accumulation, ensuring its stable operation in a suitable temperature environment, and improving the heat dissipation efficiency and reliability.

[0173] In addition, the heat-conducting bracket 202 is arranged on one side of the heating core body 1 along the thickness direction, providing a stable support and fixing platform for the control device, and in the process of vehicle driving, the vibration and bumping of the vehicle will not cause obvious displacement or shaking of the control device, effectively preventing the collision and friction between the control device 100 and other components, and reducing the potential damage to the control device caused by mechanical vibration.

[0174] In some possible embodiments, as shown in Figures 10 to 12 the heat-conducting structure 200 can further include a heat-conducting pad 201 connected between the heat-conducting bracket 202 and the heat-conducting surface of the control device 100.

[0175] The control device 100 generally has a metal surface and a plastic insulating surface (which is common knowledge in the art and will not be described here), and the heat-conducting surface refers to the metal surface of the control device 100.

[0176] The heat-conducting pad 201 has good heat conduction performance, and when it is filled between the heat-conducting bracket 202 and the heat-conducting surface of the control device 100, it can effectively fill the possible small gap between them, reduce the contact thermal resistance, and make the heat generated by the control device 100 more smoothly conducted to the heat-conducting bracket 202 through the heat-conducting pad 201, and then transferred to the water inlet pipe 2 and the water outlet pipe 3 for heat dissipation, improving the heat conduction efficiency of the entire heat conduction path and ensuring better heat dissipation effect of the control device 100.

[0177] In addition, the heat-conducting pad 201 can more evenly transfer heat from the heat-conducting surface of the control device 100 to the heat-conducting bracket 202, and due to its flexibility and adhesion, it can better adapt to the micro-unevenness of the surfaces of the control device 100 and the heat-conducting bracket 202, making the heat transfer between them more uniform, avoiding local overheating or overcooling, and being conducive to the stable control of the overall temperature of the control device 100, and improving its working reliability and stability.

[0178] In one possible embodiment, as shown in Figures 12 to 14As shown, the heat-conducting bracket 202 can include a mounting portion 202a, which is arranged opposite to the first surface la along the thickness direction of the heating core 1, and the controller 100 is mounted on the mounting portion 202a.

[0179] As shown, Figures 12 to 14 the heat-conducting bracket 202 can further include a first connecting portion 202b connected between the first end of the mounting portion 202a and the first outer pipe wall.

[0180] As shown, Figures 12 to 14 the heat-conducting bracket 202 can further include a second connecting portion 202c connected between the second end of the mounting portion 202a and the second outer pipe wall.

[0181] The mounting portion 202a is connected to the first outer pipe wall of the water inlet pipe 2 and the second outer pipe wall of the water outlet pipe 3 through the first connecting portion 202b and the second connecting portion 202c, thereby providing two direct and efficient heat dissipation paths for the controller 100, and the heat generated by the controller 100 can be quickly conducted to the first connecting portion 202b and the second connecting portion 202c through the mounting portion 202a, and then transmitted to the water inlet pipe 2 and the water outlet pipe 3, respectively, so as to take away the heat with the help of the flow of the cooling liquid in the pipes, thereby improving the heat dissipation efficiency, effectively preventing the controller 100 from overheating, ensuring the stable operation of the controller 100, and the double-connection structure enables the heat to be conducted from both ends of the mounting portion 202a to the water inlet pipe 2 and the water outlet pipe 3 at the same time, avoiding the local overheating phenomenon caused by the concentration of heat in a certain place, making the heat distribution more uniform in the entire heat-conducting bracket 202 and the water pipe system, further improving the heat dissipation effect, and being beneficial to prolonging the service life of the controller 100 and the entire system.

[0182] The first connecting portion 202b and the second connecting portion 202c are connected between the mounting portion 202a and the water inlet pipe 2 and the water outlet pipe 3, thereby enhancing the connection strength between the heat-conducting bracket 202 and the water inlet pipe 2 and the water outlet pipe 3, improving the mechanical stability and reliability of the entire vehicle heater 1000, and fully utilizing the space in the thickness direction of the heating core 1 to compactly mount the controller 100 on the mounting portion 202a, thereby avoiding the controller 100 from occupying too much space alone.

[0183] In some possible embodiments, as shown, Figure 15 the first outer pipe wall and the second outer pipe wall protrude from the first surface la along the thickness direction of the heating core 1.

[0184] As shown, Figure 13 and Figure 14 the mounting portion 202a is recessed to form a recess cavity toward the first surface la, and the controller 100 is mounted in the recess cavity.

[0185] The first outer tube wall and the second outer tube wall protrude from the first surface 1a in the thickness direction of the heating core 1, and the mounting portion 202a is recessed to form a recessed cavity toward the first surface 1a to mount the control device 100, which makes full use of the three-dimensional space around the heating core 1, enables the control device 100 to be embedded in the recessed cavity, realizes a compact layout of the internal structure of the vehicle heater 1000, improves the space utilization, and is helpful to the miniaturization design of the vehicle heater 1000, making it easier to install and arrange in the limited space of the vehicle.

[0186] In addition, the first outer tube wall and the second outer tube wall protrude from the first surface 1a, so that the heat conduction path between the recessed cavity of the mounting portion 202a and the water inlet pipe 2 and the water outlet pipe 3 is shorter, the thermal resistance is smaller, and when the control device 100 generates heat, the heat can be more quickly and efficiently conducted to the first outer tube wall and the second outer tube wall through the cavity wall, and then transmitted to the cooling liquid in the water inlet pipe 2 and the water outlet pipe 3 for heat dissipation, optimizing the heat conduction effect and improving the heat dissipation efficiency of the whole system. The design of the recessed cavity can also make the contact between the control device 100 and the first outer tube wall and the second outer tube wall more close and uniform, and the heat can be more uniformly distributed and transmitted between the control device 100 and the water pipe, avoiding the occurrence of local overheating, which is conducive to the temperature uniformity control of the control device 100, further improving the heat dissipation effect and the working stability of the control device 100.

[0187] In some possible embodiments, as shown in Figure 14 the depth of the recessed cavity matches the thickness of the control device 100 in the thickness direction of the heating core 1.

[0188] The depth of the recessed cavity matches the thickness of the control device 100 in the thickness direction of the heating core 1, that is, the depth of the recessed cavity can just accommodate the control device 100, so that the outer surface of the control device 100 is basically flush with or slightly lower than the outer surface of the mounting portion 202a after installation.

[0189] The precise matching of the depth of the recessed cavity and the thickness of the control device 100 makes full use of the limited space resources, provides a suitable installation position for the control device 100, and does not waste space due to unreasonable design of the recessed cavity, which is helpful to realize the compact design of the internal structure of the vehicle heater 1000 and improve the space utilization.

[0190] In some possible embodiments, as shown in Figure 14 the lower surface of the mounting portion 202a has a preset gap between the first surface 1a.

[0191] The existence of the gap provides a channel for air flow, facilitates heat transfer and dissipation between components, hot air can flow upward through the gap to take away the heat generated by the control device 100 and other components, while cold air around can be supplemented from the gap to form natural air convection, improve the heat dissipation efficiency, and help the control device 100 and other components to work within the appropriate temperature range.

[0192] Moreover, the existence of the gap can reduce the electromagnetic coupling between the mounting portion 202a and the first surface 1a to some extent, reduce the propagation path of electromagnetic interference, and thus improve the electromagnetic compatibility of the vehicle heater 1000.

[0193] In some possible embodiments, the height of the preset gap is 5-10 mm.

[0194] When the vehicle heater 1000 is working, each component will expand due to the increase in temperature, and the gap of 5-10 mm can provide sufficient thermal expansion space for the heating core 1, the water inlet pipe 2, the water outlet pipe 3, and the mounting portion 202a, so that they will not generate excessive stress when expanding due to mutual extrusion, effectively avoiding the problems such as deformation and damage of the components caused by excessive thermal stress, and prolonging the service life of the components.

[0195] Moreover, the gap with the height in the range can reduce the electromagnetic coupling between the mounting portion 202a and the first surface 1a, reduce the propagation path of electromagnetic interference, and thus optimize the electromagnetic environment of the vehicle heater 1000, improve the electromagnetic compatibility, and also avoid the heat-conducting bracket 202 occupying too much space in the thickness direction of the heating core 1.

[0196] In some possible embodiments, as shown in Figure 15 Fig. 2, along the thickness direction of the heating core 1, the first heat-conducting platform 2c is arranged on the side surface of the water inlet pipe 2 facing the control device 100, and the first connecting portion 202b is mounted on the first heat-conducting platform 2c.

[0197] Along the thickness direction of the heating core 1, the first heat-conducting platform 2c arranged on the side of the water inlet pipe 2 facing the control device 100 provides a plane for the first connecting portion 202b to directly and tightly contact the water inlet pipe 2. When the control device 100 generates heat, the first connecting portion 202b can quickly absorb heat from the water inlet pipe 2 through the platform. Compared with irregular contact with the surface of the water inlet pipe 2, the heat conduction path is shorter and the contact is more sufficient, which can more efficiently transfer heat to the cooling liquid in the water inlet pipe 2 to achieve rapid heat dissipation. Moreover, the first heat-conducting platform 2c provides a stable mounting position for the first connecting portion 202b, so that the heat conduction between the two will not be easily interrupted or unstable due to factors such as vehicle vibration.

[0198] As shown in Figure 15As shown, along the thickness direction of the heating core 1, the second heat-conducting platform 3c is arranged on the side surface of the water outlet pipe 3 facing the control device 100, and the second connecting part 202c is installed on the second heat-conducting platform 3c.

[0199] Along the thickness direction of the heating core 1, the second heat-conducting platform 3c arranged on the side surface of the water outlet pipe 3 facing the control device 100 provides a flat surface for the second connecting part 202c to directly and tightly contact the water outlet pipe 3. When the control device 100 generates heat, the second connecting part 202c can quickly absorb heat from the water outlet pipe 3 through the platform. Compared with irregular contact with the surface of the water outlet pipe 3, the heat conduction path is shorter and the contact is more sufficient, which can more efficiently transfer heat to the cooling liquid in the water outlet pipe 3 to achieve rapid heat dissipation. In addition, the second heat-conducting platform 3c provides a stable installation position for the second connecting part 202c, so that the heat conduction between the two is not easily interrupted or unstable due to vehicle vibration and other factors.

[0200] In some possible embodiments, as shown in Figure 12 Preferably, the first connecting part 202b and the second connecting part 202c are installed on the first heat-conducting platform 2c and the second heat-conducting platform 3c, respectively, by the fastener 203 to improve the connection strength. The fastener 203 can be a bolt, a pin, etc.

[0201] In some possible embodiments, as shown in Figure 16 Along the thickness direction of the heating core 1, the first heat-conducting fin 202b1 is arranged on the surface of the first connecting part 202b facing the water inlet pipe 2, and the first heat-conducting fin 202b1 is used to guide the heat generated by the installation part 202a to the water inlet pipe 2.

[0202] Along the thickness direction of the heating core 1, the first heat-conducting fin 202b1 arranged on the surface of the first connecting part 202b facing the water inlet pipe 2 increases the effective contact area between the first connecting part 202b and the water inlet pipe 2. The first heat-conducting fin 202b1 can guide the heat to be transmitted more efficiently along the direction of the fin, reducing the loss and hindrance of heat during transmission, and more directly guiding the heat generated by the installation part 202a to the water inlet pipe 2, so that the heat can be more concentratedly absorbed by the cooling liquid in the water inlet pipe 2.

[0203] As shown in Figure 16 Along the thickness direction of the heating core 1, the second heat-conducting fin 202c1 is arranged on the surface of the second connecting part 202c facing the water outlet pipe 3, and the second heat-conducting fin 202c1 is used to guide the heat generated by the installation part 202a to the water outlet pipe 3.

[0204] The second heat-conducting fin 202c1 has a similar effect as the first heat-conducting fin 202b1. For the side of the outlet pipe 3, the second heat-conducting fin 202c1 can independently guide the heat of the mounting portion 202a to the outlet pipe 3 more effectively. Even in the case of local problems of heat dissipation of the inlet pipe 2 or uneven flow of the coolant, the second heat-conducting fin 202c1 can ensure that the heat of the mounting portion 202a is dissipated to a certain extent through the outlet pipe 3, playing a certain redundant and supplementary heat dissipation role.

[0205] In some possible embodiments, the heat-conducting bracket 202 is a one-piece metal bracket.

[0206] The metal itself has good heat-conducting performance. For example, commonly used metal materials such as copper and aluminum have high heat-conducting coefficients and can quickly transfer heat. The one-piece structure avoids additional thermal resistance that may be caused by the connection of different components, so that heat can be conducted unobstructed inside the heat-conducting bracket 202, smoothly transferred from the mounting portion 202a where the controller 100 is located to the first connecting portion 202b and the second connecting portion 202c connected with the inlet pipe 2 and the outlet pipe 3, and the efficiency of the entire heat-conducting path is ensured, which helps to improve the heat dissipation efficiency.

[0207] In some possible embodiments, as shown in Figure 11 and Figure 12 The heating assembly A can further include a circuit board 20. In the first direction, the circuit board 20 is arranged opposite to the end of the heating core 1, and the controller 100 is electrically connected to the circuit board 20.

[0208] The circuit board 20 is arranged opposite to the end of the heating core 1 in the first direction, which makes full use of the space near the end of the heating core 1, so that the circuit board 20 has a proper and relatively regular placement position inside the vehicle heater 1000, which helps to realize the compactness of the layout of the entire heating assembly A, improves the utilization rate of the limited space inside the vehicle heater 1000, and makes it easier to install and adapt in the limited space environment of the vehicle.

[0209] In some possible embodiments, as shown in Figure 11 and Figure 12 The vehicle heater 1000 can further include a pressing plate 30. The pressing plate 30 is connected with the shell 10 and presses the controller 100 toward the first surface 1a in the thickness direction of the heating core 1.

[0210] The pressing plate 30 is connected to the shell 10 and presses the control device 100 towards the first surface la along the thickness direction of the heating core 1, which can provide reliable fixation and limiting for the control device 100. The pressing of the pressing plate 30 can effectively limit the displacement of the control device 100 in the thickness direction, prevent it from colliding or rubbing with other surrounding components due to shaking, ensure the stability of the installation position of the control device 100, and thus improve the mechanical stability of the entire vehicle heater 1000 and reduce the risk of failure caused by loose or displaced components.

[0211] In addition, by pressing the control device 100, the pressing plate 30 makes the contact between the control device 100 and the heat-conducting bracket 202 or other heat-dissipating related components (such as the heat-conducting structure 200 corresponding to the water inlet pipe 2 and the water outlet pipe 3) more closely and uniformly. The close contact can reduce the contact thermal resistance and allow heat to be more smoothly conducted away from the control device 100, optimizing the heat conduction path and improving the heat dissipation efficiency, so that the heat generated by the control device 100 can be quickly transferred to the corresponding heat-dissipating components (such as the water inlet pipe 2 and the water outlet pipe 3 through the heat-conducting bracket 202) and then carried away by the coolant, which helps the control device 100 to work stably within a suitable temperature range.

[0212] In some possible embodiments, the material of the heating core 1 includes metal aluminum.

[0213] Since metal aluminum has good thermal conductivity, it can quickly transfer heat to all parts of the heating core 1, thereby improving the heating efficiency, which helps to ensure that the heating core 1 reaches the required temperature in a short time and maintains stable heating effect. Moreover, aluminum is a lightweight metal with relatively low density, which makes the heating core 1 lighter while maintaining high performance, facilitating installation and transportation. At the same time, the strength of aluminum is also high enough to withstand certain mechanical stress and thermal stress, ensuring the long-term use reliability of the heating core 1.

[0214] In some possible embodiments, the heating core 1 is integrally formed by an extrusion process. Extrusion molding is a molding method that makes the material plastically deform in the mold to obtain a product with the required shape and size. It often involves placing a metal blank in the mold cavity, applying a strong pressure to force the metal blank to extrude from the die hole of the mold, forming a product with a specific shape and size.

[0215] The extrusion molding process can make the materials of the heating core 1 more tightly bonded together, reducing the generation of internal defects and cracks, thereby improving the overall structural strength, which helps to resist external pressure and thermal stress, ensuring the stability and reliability of the heating core 1 in long-term use. Moreover, the extrusion-molded heating core 1 has a more uniform internal structure, which helps to evenly distribute and conduct heat, allowing the heating core 1 to reach the required temperature faster and maintain stable heating effect, thereby improving heating efficiency and energy utilization. In addition, one-piece molding can reduce the multiple processing steps and assembly links in traditional manufacturing processes, thereby reducing manufacturing costs and time, reducing material waste and scrap rate, and improving production efficiency and resource utilization.

[0216] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle heater characterized by comprising: The application relates to a heater for a vehicle, comprising: a housing; a heating assembly arranged in the housing, the heating assembly comprising: a heating core body having a first surface, a first side and a second side, the first side and the second side being connected to two sides of the first surface, a plurality of flow channels being formed in the heating core body, the plurality of flow channels being arranged in a first direction and penetrating through the first side and the second side; a water inlet pipe connected to the first side and communicating with the plurality of flow channels, the water inlet pipe comprising a water inlet port for communicating with a liquid source; a water outlet pipe connected to the second side and communicating with the plurality of flow channels, the water outlet pipe comprising a water outlet port; a heating film arranged on the first surface, the heating film being used for heating liquid entering the flow channels; a control device electrically connected to the heating film and used for controlling the heating power of the heating film; a heat conduction structure connected between the control device and the water inlet pipe, the heat conduction structure being used for guiding heat generated by the control device to the water inlet pipe; or the heat conduction structure is connected between the control device and the water outlet pipe, the heat conduction structure being used for guiding heat generated by the control device to the water outlet pipe.

2. A vehicle heater characterized by comprising: The application relates to a heater for a vehicle, comprising: a housing; a heating assembly arranged in the housing, the heating assembly comprising: a heating core body having a first surface, a first side and a second side, the first side and the second side being connected to two sides of the first surface, a plurality of flow channels being formed in the heating core body, the plurality of flow channels being arranged in a first direction and penetrating through the first side and the second side; a water inlet pipe connected to the first side and communicating with the plurality of flow channels, the water inlet pipe comprising a water inlet port for communicating with a liquid source; a water outlet pipe connected to the second side and communicating with the plurality of flow channels, the water outlet pipe comprising a water outlet port; a heating film arranged on the first surface, the heating film being used for heating liquid entering the flow channels; a control device electrically connected to the heating film and used for controlling the heating power of the heating film; a heat conduction structure connected between the control device and the water inlet pipe, the heat conduction structure being used for guiding heat generated by the control device to the water inlet pipe, and the heat conduction structure is connected between the control device and the water outlet pipe, the heat conduction structure being used for guiding heat generated by the control device to the water outlet pipe.

3. The heater for a vehicle according to claim 1 or 2, wherein: the water inlet pipe has a first closed end surface opposite to the water inlet port; the heat conduction structure is connected between the control device and the first closed end surface, and is used for guiding heat generated by the control device to the first closed end surface.

4. The heater for a vehicle according to claim 1 or 2, wherein: the water outlet pipe has a second closed end surface opposite to the water inlet port; The heat-conducting structure is connected between the control device and the second closed end surface, and is used to guide the heat generated by the control device to the second closed end surface.

5. The vehicle heater according to claim 3, wherein The heating assembly further comprises: a circuit board, which is arranged opposite to the first closed end surface along the first direction, and on which the control device is arranged; The heat-conducting structure comprises: a heat-conducting pad, which is connected between the control device and the first closed end surface along the first direction.

6. The vehicle heater according to claim 4, wherein The heating assembly further comprises: a circuit board, which is arranged opposite to the second closed end surface along the first direction, and on which the control device is arranged; The heat-conducting structure comprises: a heat-conducting pad, which is connected between the control device and the second closed end surface along the first direction.

7. The vehicle heater according to claim 5 or 6, characterized in that, The area of the heat-conducting pad is greater than or equal to the area of the surface of the control device abutting against the heat-conducting pad.

8. The vehicle heater according to claim 5 or 6, characterized by The thickness of the heat-conducting pad is 0.1mm-0.5mm.

9. The vehicle heater according to claim 1 or 2, characterized by The vehicle heater further comprises: a pressing plate, which is connected to the housing and presses the control device towards the heating core along the first direction.

10. The vehicle heater according to claim 1 or 2, wherein The water inlet pipe has a first outer pipe wall; The heat-conducting structure is connected between the control device and the first outer pipe wall, and is used to guide the heat generated by the control device to the first outer pipe wall.

11. The vehicle heater according to claim 10, wherein The water outlet pipe has a second outer pipe wall; The heat-conducting structure is connected between the control device and the second outer pipe wall, and is used to guide the heat generated by the control device to the second outer pipe wall.

12. The vehicle heater according to claim 11, wherein The heat-conducting structure comprises: a heat-conducting bracket, which is arranged on one side of the heating core along the thickness direction, and is connected to the first outer pipe wall and the second outer pipe wall respectively, and on which the control device is arranged and heat-conducting connected to the heat-conducting bracket.

13. The vehicle heater of claim 12, wherein, The heat-conducting structure further comprises: a heat-conducting pad, which is connected between the heat-conducting bracket and the heat-conducting surface of the control device.

14. The vehicle heater according to claim 13, wherein The heat-conducting bracket comprises: a mounting portion, which is arranged opposite to the first surface along the thickness direction of the heating core, and on which the control device is mounted; a first connecting portion, which is connected between the first end of the mounting portion and the first outer pipe wall; a second connecting portion, which is connected between the second end of the mounting portion and the second outer pipe wall.

15. The vehicle heater according to claim 14, wherein The first outer pipe wall and the second outer pipe wall protrude from the first surface along the thickness direction of the heating core; The mounting portion is recessed to form a recess cavity towards the first surface, and the control device is mounted in the recess cavity.

16. The vehicle heater of claim 15, wherein The depth of the cavity matches the thickness of the control device in the thickness direction of the heating core.

17. The vehicle heater of claim 16, wherein The mounting portion has a preset gap between the lower surface and the first surface.

18. The vehicle heater of claim 17, wherein, The height of the preset gap is 5-10 mm.

19. The vehicle heater according to claim 14, wherein, The first connecting portion is mounted on a first heat-conducting platform arranged on the side surface of the control device in the thickness direction of the heating core. The second connecting portion is mounted on a second heat-conducting platform arranged on the side surface of the control device in the thickness direction of the heating core.

20. The vehicle heater according to claim 14, wherein, The first connecting portion is provided with a first heat-conducting fin arranged on the surface of the inlet pipe in the thickness direction of the heating core, the first heat-conducting fin being used to guide the heat of the mounting portion towards the inlet pipe. The second connecting portion is provided with a second heat-conducting fin arranged on the surface of the outlet pipe in the thickness direction of the heating core, the second heat-conducting fin being used to guide the heat of the mounting portion towards the outlet pipe.

21. The vehicle heater of claim 12, wherein, The heat-conducting support is an integrally formed metal support.

22. The vehicle heater of claim 12, wherein, The heating assembly further comprises: A circuit board arranged opposite to the end of the heating core in the first direction, the control device being electrically connected to the circuit board.

23. The vehicle heater of claim 12, wherein, The vehicle heater further comprises: A pressing plate connected to the housing and used to press the control device towards the first surface in the thickness direction of the heating core.

24. The vehicle heater according to claim 1 or 2, characterized by The material of the heating core comprises metal aluminum.

25. The vehicle heater according to claim 1 or 2, characterized by The heating core is integrally formed through an extrusion process.

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