Water heater and vehicle with same

Abstract

The utility model discloses a water heater and a vehicle with the same, the water heater comprises a flow channel shell, a heating flow channel and a bypass flow channel are defined in the flow channel shell, a liquid inlet and a liquid outlet are formed in the flow channel shell, two ends of the heating flow channel are respectively communicated with the liquid inlet and the liquid outlet, and two ends of the bypass flow channel are respectively communicated with the liquid inlet and the liquid outlet; the valve is arranged on the flow channel shell, and the valve is configured to be used for adjusting the opening degree of the bypass flow channel; and the heating piece is configured to be used for heating the fluid in the heating flow channel. According to the water heater, the valve can control the flow of fluid in the heating flow channel and the bypass flow channel, so that the mixing proportion of cold fluid and hot fluid at the liquid outlet is effectively adjusted, the temperature of the fluid at the liquid outlet is effectively adjusted, and a temperature control switch of the heating piece can be prevented from being frequently switched on and off; therefore, the failure rate of the temperature control switch of the heating piece is effectively reduced, and the stability and reliability of the water heater are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a water heater and vehicle with it. BACKGROUND

[0002] With the popularization of new energy vehicles, water heaters, as the main heat source of the whole vehicle in pure electric mode, have also been popularized on a large scale. The water heater has the function of heating the cooling liquid of the vehicle, so that the cooling liquid reaches the target temperature, and then the heat exchanger is used to heat the air conditioning box and the battery to meet the temperature requirements of various parts of the vehicle.

[0003] In the prior art, an IGBT chip is usually added in the control circuit. When the temperature of the water heater approaches the target temperature, the working time of the heating device is controlled by frequently turning on and off the IGBT, so as to control the water temperature to maintain at a certain temperature. However, heat will be generated during the process of turning on and off the IGBT, and the largest heat is generated during the frequent switching. If the heat dissipation is poor, the IGBT will be overheated and burned out, thereby affecting the user's experience. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving at least one of the technical problems existing in the prior art. To this end, the utility model provides a water heater, which can control the fluid temperature at the liquid outlet by controlling the size of the valve opening, thereby effectively reducing the on-off frequency of the temperature control switch of the heating element, and further effectively reducing the failure rate of the temperature control switch of the heating element, so as to effectively improve the stability and reliability.

[0005] The utility model further provides a vehicle with the above-mentioned water heater.

[0006] According to the water heater of the first aspect of the utility model, the water heater comprises: a flow channel shell, the flow channel shell defines a heating flow channel and a bypass flow channel inside, the flow channel shell is formed with a liquid inlet and a liquid outlet, the two ends of the heating flow channel are communicated with the liquid inlet and the liquid outlet respectively, and the two ends of the bypass flow channel are communicated with the liquid inlet and the liquid outlet respectively; a valve is arranged in the flow channel shell, the valve is configured to adjust the opening degree of the bypass flow channel; and a heating element is configured to heat the fluid in the heating flow channel.

[0007] According to the water heater, the flow channel shell, the valve and the heating element are arranged in the water heater, the heating flow channel and the bypass flow channel are defined in the flow channel shell, the inlet and the outlet are formed on the flow channel shell, the two ends of the heating flow channel are communicated with the inlet and the outlet respectively, the two ends of the bypass flow channel are communicated with the inlet and the outlet respectively, the valve is arranged in the flow channel shell, the valve is configured to adjust the opening of the bypass flow channel, the heating element is configured to heat the fluid in the heating flow channel, so that the valve can control the flow of the fluid in the heating flow channel and the bypass flow channel, thereby effectively adjusting the mixing ratio of the cold and hot fluids at the outlet, and further effectively adjusting the fluid temperature at the outlet, so as to avoid frequent on-off of the temperature control switch of the heating element, thereby effectively reducing the failure rate of the temperature control switch of the heating element, and further effectively improving the stability and reliability of the water heater.

[0008] In some embodiments, the valve comprises a valve plate movably arranged in the bypass flow channel for cutting off or conducting the bypass flow channel.

[0009] In some embodiments, the valve plate comprises a plate body and a waterproof layer, and the waterproof layer is wrapped on the outer side surface of the plate body.

[0010] In some embodiments, the valve further comprises a driving motor and a connecting shaft, the driving motor is arranged outside the bypass flow channel, the connecting shaft is connected between the driving motor and the valve plate, and the driving motor drives the valve plate to rotate through the connecting shaft.

[0011] In some embodiments, the inlet and the outlet are arranged on the same side of the flow channel shell in a first direction, the bypass flow channel is arranged on the side of the flow channel shell facing the inlet and the outlet, the heating flow channel is arranged on the side of the bypass flow channel away from the inlet and the outlet in the first direction, and the heating flow channel is bent and extends in the flow channel shell.

[0012] In some embodiments, the number of the heating flow channels is one or a plurality arranged in parallel between the inlet and the outlet.

[0013] In some embodiments, the flow channel shell comprises an outer shell and a flow channel plate, the flow channel plate is arranged in the outer shell, the heating flow channel and the bypass flow channel are formed on the flow channel plate, and the heating element is arranged in the outer shell and is in heat exchange with the area of the flow channel plate where the heating flow channel is formed.

[0014] In some embodiments, a side wall of the housing in a second direction is a first plate, the second direction is a thickness direction of the flow channel plate, a side surface of the flow channel plate facing the first plate is formed with the open heating flow channel and the bypass flow channel, and the flow channel plate is connected to the first plate to cover the heating flow channel and the bypass flow channel by the first plate.

[0015] In some embodiments, the water heater further comprises a temperature sensor, the temperature sensor is arranged at the liquid outlet position, and the temperature sensor is electrically connected to the valve.

[0016] The vehicle according to the second aspect of the utility model comprises the water heater according to the first aspect of the utility model.

[0017] According to the vehicle of the second aspect of the utility model, the water heater of the first aspect is arranged, the valve can control the flow of fluid in the heating flow channel and the bypass flow channel, the mixing ratio of cold fluid and hot fluid at the liquid outlet is effectively adjusted, the temperature of fluid at the liquid outlet is effectively adjusted, the temperature control switch of the heating element is avoided from being frequently turned on and turned off, the failure rate of the temperature control switch of the heating element is effectively reduced, and the stability and reliability of the water heater are effectively improved.

[0018] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of a water heater according to an embodiment of the utility model;

[0020] Figure 2 is a sectional view along line A-A in Figure 1

[0021] Reference signs:

[0022] 100, water heater;

[0023] 10, flow channel housing; 101, heating flow channel; 102, bypass flow channel; 103, liquid inlet; 104, liquid outlet; 11, housing; 111, first plate; 12, flow channel plate;

[0024] 20, valve; 21, valve plate; 22, driving motor; 23, connecting shaft;

[0025] 30, heating element. DETAILED DESCRIPTION

[0026] ​Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0027] Reference will be made to Figure 1 and Figure 2 The water heater 100 according to the first aspect of the present application is described below.

[0028] As shown in Figure 1 and Figure 2 The water heater 100 according to the first aspect of the present application includes a flow passage shell 10, a valve 20, and a heating member 30.

[0029] The flow passage shell 10 defines a heating flow passage 101 and a bypass flow passage 102 therein, and the flow passage shell 10 is formed with an inlet 103 and an outlet 104, the two ends of the heating flow passage 101 are in communication with the inlet 103 and the outlet 104 respectively, and the two ends of the bypass flow passage 102 are in communication with the inlet 103 and the outlet 104 respectively; the valve 20 is arranged in the flow passage shell 10, and the valve 20 is configured to adjust the opening degree of the bypass flow passage 102; the heating member 30 is configured to heat the fluid in the heating flow passage 101.

[0030] It should be noted that the fluid in the water heater 100 is a cooling liquid, and in one specific example, the cooling liquid is a glycol solution, which has good heat conduction performance and can remain in a liquid state at a relatively low temperature, effectively preventing freezing and thus effectively protecting the pipeline and equipment from damage.

[0031] For example Figure 1 As shown in the drawings, one end of the heating flow passage 101 is in communication with the inlet 103, and the other end of the heating flow passage 101 is in communication with the outlet 104, that is, the fluid can flow into the heating flow passage 101 from the inlet 103 and flow out of the water heater 100 from the outlet 104. For example Figure 1 As shown in the drawings, one end of the bypass flow passage 102 is in communication with the inlet 103, and the other end of the bypass flow passage 102 is in communication with the outlet 104, that is, the fluid can flow into the bypass flow passage 102 from the inlet 103 and flow out of the water heater 100 from the outlet 104. Further, a water pump is also provided in the water heater 100, which can provide driving force for the flow of the fluid in the water heater 100, so that the fluid has sufficient flow rate to flow smoothly in the water heater 100.

[0032] For example, the heating element 30 can be a PTC sheet, which is a kind of thermistor material with positive temperature coefficient characteristics. When an electric current passes through the PTC sheet, the PTC sheet will heat up and generate heat, and as the temperature rises, the resistance value of the PTC sheet will also increase, thereby limiting the further increase of the electric current, thus enabling the PTC sheet to have the ability to self-regulate temperature. That is, the PTC sheet has the self-limiting temperature characteristic, and the PTC sheet almost stops heating after reaching a certain temperature, thereby reducing the risk of overheating and effectively saving energy. In addition, the PTC sheet is small in size, easy to assemble, and thus can effectively save installation space.

[0033] For another example, the heating element 30 can be a resistance wire, which is a common electric heating element. When an electric current flows through the resistance wire with resistance, the resistance wire can generate heat and heat up quickly. By setting the heating element 30 as a resistance wire, the structure of the heating element 30 can be effectively simplified and the cost can be effectively reduced, in addition, the installation and maintenance can be facilitated, thereby effectively improving the convenience.

[0034] For another example, the heating element 30 can be a heating film, which is a thin and flexible heating element, usually made of conductive material, which can be carbon fiber, metal foil or conductive polymer, and covered with an insulating layer. The heating film has the characteristics of uniform heating and fast heating, which can effectively improve the heating efficiency. In addition, the heating film is thin and flexible, which can be installed in spaces of various shapes and sizes. Thus, by setting the heating element 30 as a heating film, the heating efficiency and applicability of the heating element 30 can be effectively improved.

[0035] When the water heater 100 is working, the water pump is turned on. If the valve 20 is in a fully closed state at this time, the fluid flows from the inlet 103 into the heating flow channel 101 and is heated by the heating element 30 in the heating flow channel 101, and then the fluid flows out of the outlet 104. If the valve 20 is in an open state at this time, part of the fluid can flow from the inlet 103 into the heating flow channel 101 and be heated by the heating element 30 in the heating flow channel 101, and then the fluid flows out of the outlet 104. Another part of the fluid can flow from the inlet 103 into the bypass flow channel 102 and flow out of the outlet 104. That is, the fluid flowing out of the heating flow channel 101 and the fluid flowing out of the bypass flow channel 102 can be mixed at the outlet 104, and then flow out of the outlet 104.

[0036] It should be noted that in the prior art, an IGBT chip is usually provided in the control circuit of the water heater 100, and the control of the heating element 30 is completed by controlling the on-off of the IGBT. Heat is generated in the process of turning on and off the IGBT, and the maximum heat is generated in the frequent switching. When the temperature of the cooling liquid in the water heater 100 approaches the target temperature, the working time of the heating element 30 is controlled by frequently turning on and off the IGBT, so as to control the water temperature to maintain at a certain temperature. Thus, the heat generated by the IGBT increases, and if the circuit board is not reasonably designed or poorly cooled, the IGBT is very easy to overheat and burn out.

[0037] In the embodiment, when the valve 20 is in the fully closed state, the water heater 100 of the present application has the same working principle as the water heater 100 of the prior art, and the heat generated by the on-off of the IGBT is used to heat the fluid. At this time, the flow rate of the fluid in the heating flow channel 101 cannot be adjusted. When the valve 20 is in the open state and the flow rate and flow of the fluid at the liquid inlet 103 are constant, the IGBT is in the on state at this time. By adjusting the opening degree of the valve 20, the flow rate of the fluid in the heating flow channel 101 and the flow rate of the fluid in the bypass flow channel 102 can be adjusted, thereby the mixing ratio of the cold and hot fluids at the liquid outlet 104 can be adjusted, so that the temperature of the fluid at the liquid outlet 104 reaches the preset value, and the use requirement of the user is effectively met.

[0038] By providing the opening degree adjustable valve 20, the temperature of the fluid at the liquid outlet 104 can be effectively adjusted when the IGBT is in the on state, thereby the on-off frequency of the IGBT can be effectively reduced, and the IGBT is prevented from being frequently switched when adjusting the temperature of the fluid, so as to effectively reduce the heat generated by the IGBT due to the frequent switching, and the possibility of damaging the IGBT due to overheating can be effectively reduced, thereby the IGBT is effectively protected and the stability and reliability of the water heater 100 are effectively improved.

[0039] According to the water heater 100, the flow channel shell 10, the valve 20 and the heating piece 30 are arranged in the water heater 100, the heating flow channel 101 and the bypass flow channel 102 are defined in the flow channel shell 10, the inlet 103 and the outlet 104 are formed on the flow channel shell 10, the two ends of the heating flow channel 101 are communicated with the inlet 103 and the outlet 104 respectively, the two ends of the bypass flow channel 102 are communicated with the inlet 103 and the outlet 104 respectively, the valve 20 is arranged in the flow channel shell 10, the valve 20 is configured to adjust the opening degree of the bypass flow channel 102, and the heating piece 30 is configured to heat the fluid in the heating flow channel 101, so that the valve 20 can control the flow of the fluid in the heating flow channel 101 and the bypass flow channel 102, thereby effectively adjusting the mixing ratio of the cold and hot fluids at the outlet 104, and further effectively adjusting the fluid temperature at the outlet 104, so that the temperature control switch of the heating piece 30 can be avoided from being frequently turned on and off, thereby effectively reducing the failure rate of the temperature control switch of the heating piece 30, and further effectively improving the stability and reliability of the water heater 100.

[0040] In an embodiment of the utility model, as shown in Figure 1 The valve 20 includes a valve plate 21, which is movably arranged in the bypass flow channel 102 and used for cutting off or conducting the bypass flow channel 102. That is, the user can cut off or conduct the bypass flow channel 102 by controlling the position of the valve plate 21.

[0041] For example, when the user needs to increase the fluid temperature, the valve 20 can be adjusted to be completely closed, at this time, the valve plate 21 can completely block the bypass flow channel 102, so that the fluid entering the water heater 100 from the inlet 103 flows into the heating flow channel 101 and continuously exchanges heat with the heating piece 30 in the heating flow channel 101, thereby continuously increasing the fluid temperature, and then the heated fluid flows out of the water heater 100 from the outlet 104.

[0042] For example, when the user needs to increase the fluid temperature, the valve 20 can be adjusted to be completely closed, at this time, the valve plate 21 can completely block the bypass flow channel 102, so that the fluid entering the water heater 100 from the inlet 103 flows into the heating flow channel 101 and continuously exchanges heat with the heating piece 30 in the heating flow channel 101, thereby continuously increasing the fluid temperature, and then the heated fluid flows out of the water heater 100 from the outlet 104.

[0043] The embodiment can effectively ensure controllability of the opening degree of the valve 20, thereby effectively controlling the temperature of the fluid at the liquid outlet 104.

[0044] In one embodiment of the present application, as shown in Figure 1 The valve plate 21 comprises a plate body and a waterproof layer, and the waterproof layer is wrapped on the outer side surface of the plate body. Figure 1 In one specific example, as shown in

[0045] In one specific example, the plate body is a rectangular plate, and further, the material of the valve plate 21 is PA66. It should be noted that PA66 is a thermoplastic resin, also known as nylon 66. PA66 has good mechanical properties, including high strength and wear resistance. The valve plate 21 made of PA66 can withstand the stress and friction generated during operation, and PA66 has good resistance to a variety of chemicals, including water, ethylene glycol solution and other common cooling liquid components, thereby effectively prolonging the service life of the valve plate 21.

[0046] In one specific example, the material of the waterproof layer is impregnated EPDM. It should be noted that impregnated EPDM has excellent resistance to a variety of chemicals, including acid and alkali solutions and cooling liquid components such as ethylene glycol, and impregnated EPDM can maintain good physical properties within a wide temperature range, suitable for various working conditions from low temperature to high temperature. Therefore, the waterproof layer made of impregnated EPDM can effectively improve stability and reliability. In addition, impregnated EPDM has a low friction coefficient and good wear resistance, which can reduce the wear of the valve plate 21 during movement, thereby effectively protecting the valve plate 21 and prolonging the service life of the valve plate 21.

[0047] The embodiment provides the plate body and the waterproof layer in the valve plate 21, and the waterproof layer is wrapped on the outer side surface of the plate body, so that the waterproof layer can not only effectively protect the plate body, but also effectively improve the overall mechanical strength and durability of the valve plate 21, thereby prolonging the service life of the valve plate 21.

[0048] In one embodiment of the present application, as shown in Figure 1 andFigure 2 As shown, the valve 20 further comprises a driving motor 22 arranged outside the bypass flow channel 102 and a connecting shaft 23 connected between the driving motor 22 and the valve plate 21, the driving motor 22 drives the valve plate 21 to rotate through the connecting shaft 23.

[0049] In one specific example, as shown in Figure 2 the driving motor 22 is arranged on the upper side of the bypass flow channel 102, the connecting shaft 23 is arranged between the driving motor 22 and the valve plate 21, the upper end of the connecting shaft 23 is in transmission connection with the motor shaft of the driving motor 22, and the lower end of the connecting shaft 23 is fixedly connected with the valve plate 21, that is, the driving motor 22 can drive the valve plate 21 to rotate by driving the rotation of the connecting shaft 23. Further, the flow channel shell 10 is provided with a shaft hole, and the connecting shaft 23 passes through the shaft hole and is rotatably arranged in the shaft hole.

[0050] In one specific example, as shown in Figure 2 the material of the connecting shaft 23 is PA66, the driving motor 22 is a stepping motor, and further, the stepping motor is electrically connected with the ECU (Electronic Control Unit) of the vehicle. It should be noted that the stepping motor can accurately control the rotation angle of the valve plate 21 according to the number of input pulses, thereby effectively ensuring the accurate adjustment of the opening degree of the valve 20, and further accurately controlling the flow size of the fluid in the heating flow channel 101 and the bypass flow channel 102, so as to realize the accurate control of the fluid temperature at the outlet 104. In addition, the stepping motor can still provide a higher torque output at low speed, thereby improving the stability of the valve plate 21 when rotating slowly.

[0051] The embodiment can effectively simplify the process of adjusting the opening degree of the valve 20 by arranging the driving motor 22 and the connecting shaft 23 in the valve 20, the driving motor 22 is arranged outside the bypass flow channel 102, the connecting shaft 23 is connected between the driving motor 22 and the valve plate 21, and the driving motor 22 drives the valve plate 21 to rotate through the connecting shaft 23, which can effectively simplify the process of adjusting the opening degree of the valve 20, facilitate user operation, and thereby effectively improve the convenience of adjusting the opening degree of the valve 20.

[0052] In one embodiment of the utility model, as shown in Figure 1 the inlet 103 and the outlet 104 are arranged on the same side of the flow channel shell 10 in the first direction, the bypass flow channel 102 is arranged on the side of the flow channel shell 10 facing the inlet 103 and the outlet 104, the heating flow channel 101 is arranged on the side of the bypass flow channel 102 facing away from the inlet 103 and the outlet 104 in the first direction (for example, the front-back direction in Figure 1

[0053] It should be noted that in one specific example, as shown in Figure 1 ​As shown, the first direction is the forward and backward direction. In a specific example, such as... Figure 1 As shown, the inlet 103 and outlet 104 are arranged on the rear side of the flow channel housing 10. The bypass flow channel 102 is located inside the flow channel housing 10 and close to the inlet 103 and outlet 104. One end of the bypass flow channel 102 is connected to the inlet 103, and the other end is connected to the outlet 104. When the valve 20 is opened, a portion of the fluid flowing into the water heater 100 from the inlet 103 is guided into the bypass flow channel 102, allowing the liquid to bypass through the shortest path, thereby reducing unnecessary pressure loss and improving the response speed.

[0054] In a specific example, such as Figure 1 As shown, the heating channel 101 is arranged in front of the bypass channel 102 and away from the inlet 103 and outlet 104. That is, the bypass channel 102 is closer to the inlet 103 and outlet 104, while the heating channel 101 is farther away. This effectively ensures that the fluid requiring heating can fully exchange heat with the heat exchanger, thereby obtaining sufficient heat. The heating channel 101 bends and extends within the channel shell 10, effectively increasing the residence time and path length of the fluid within the heating channel 101, thus helping to improve heat exchange efficiency and ensuring that the fluid is heated uniformly.

[0055] In this embodiment, by arranging the inlet 103 and outlet 104 on the same side of the flow channel shell 10 in the first direction, and the bypass flow channel 102 on the side of the flow channel shell 10 facing the inlet 103 and outlet 104, and the heating flow channel 101 arranged on the side of the bypass flow channel 102 away from the inlet 103 and outlet 104 in the first direction, and the heating flow channel 101 extending and bending within the flow channel shell 10, the compactness of the water heater 100 structure can be effectively improved, the flow path of the fluid can be optimized, thereby effectively reducing unnecessary losses and effectively improving heat exchange efficiency, and thus effectively improving the temperature control effect of the water heater 100.

[0056] In one embodiment of this utility model, such as Figure 1 As shown, the number of heating channels 101 is one or multiple channels arranged in parallel between the inlet 103 and the outlet 104. For example, the number of heating channels 101 is one; or the number of heating channels 101 is multiple, for example, the number of heating channels 101 can be two, three, four, five or more, and multiple heating channels 101 are arranged in parallel between the inlet 103 and the outlet 104.

[0057] In a specific example, such as Figure 1As shown, the number of heating flow channels 101 is two, and both of the two heating flow channels 101 are bent and extended in the flow channel shell 10. When the number of heating flow channels 101 is one, not only the structure of the flow channel shell 10 can be effectively simplified, but also the flow resistance of the fluid in the heating flow channel 101 can be effectively reduced, thereby effectively reducing the load of the water pump and further effectively reducing the energy consumption; when the number of heating flow channels 101 is multiple and the multiple heating flow channels 101 are arranged in parallel between the liquid inlet 103 and the liquid outlet 104, the heat exchange area between the fluid in the heating flow channel 101 and the heating piece 30 can be effectively increased, and local overheating can be avoided, thereby realizing uniform heat exchange.

[0058] By setting the number of heating flow channels 101 to one, the structure of the flow channel shell 10 can be effectively simplified, the manufacturing difficulty can be reduced, and the cost can be effectively reduced; by setting the number of heating flow channels 101 to multiple and arranging the multiple heating flow channels 101 in parallel between the liquid inlet 103 and the liquid outlet 104, the uniformity of heat exchange of the fluid in the heating flow channel 101 can be effectively ensured, and the heat exchange effect of the fluid in the heating flow channel 101 can be effectively ensured.

[0059] In an embodiment of the utility model, as shown in the figure, Figure 2 The flow channel shell 10 comprises an outer shell 11 and a flow channel plate 12, the flow channel plate 12 is arranged in the outer shell 11, the heating flow channel 101 and the bypass flow channel 102 are formed on the flow channel plate 12, and the heating piece 30 is arranged in the outer shell 11 and is attached to the heat exchange area of the flow channel plate 12.

[0060] In a specific example, as shown in the figure, Figure 2 The flow channel plate 12 and the heating piece 30 are arranged in the outer shell 11, thereby not only facilitating the production and assembly of the flow channel shell 10, but also reducing the influence of external factors on the flow channel plate 12 and the heating piece 30, thereby effectively protecting the flow channel plate 12 and the heating piece 30. Further, the materials of the flow channel plate 12 and the outer shell 11 can be aluminum alloy.

[0061] It should be noted that aluminum alloy is an alloy material composed of aluminum as the base and one or more alloying elements. By adding different alloying elements, the mechanical properties of aluminum can be significantly improved, such as increasing strength, hardness and wear resistance, while maintaining its light weight and corrosion resistance. Generally speaking, aluminum alloy has the advantages of high specific strength, light weight, low cost, easy processing, corrosion resistance and recyclability.

[0062] The material of the shell 11 can also adopt PA66+GF30. It should be noted that PA66+GF30 is a general designation of PA66 plastic raw material added with 30% glass fiber, and PA66+GF30 has the characteristics of high strength, special thermal stability and hydrolysis resistance. The shell 11 adopts the material PA66+GF30, which can effectively improve the mechanical strength and durability.

[0063] In one specific example, the shell 11 and the flow channel plate 12 are both machined parts. By directly forming the heating flow channel 101 and the bypass flow channel 102 on the flow channel plate 12, the manufacturing process can be effectively simplified, and the leakage points can be reduced, thereby effectively improving the sealing performance and reliability of the heating flow channel 101 and the bypass flow channel 102. Further, the heating element 30 is arranged above the heating flow channel 101 and closely adheres to the upper surface of the flow channel plate 12, that is, the heating element 30 can exchange heat with the flow channel plate 12, and the flow channel plate 12 can exchange heat with the fluid in the heating flow channel 101, thereby adjusting the temperature of the fluid in the heating flow channel 101.

[0064] The shell 11 and the flow channel plate 12 are arranged in the flow channel shell 10, the flow channel plate 12 is arranged in the shell 11, the heating flow channel 101 and the bypass flow channel 102 are formed on the flow channel plate 12, the heating element 30 is arranged in the shell 11 and closely adheres to the region of the flow channel plate 12 where the heating flow channel 101 is formed, so that the shell 11 can effectively protect the flow channel plate 12 and the heating element 30, thereby effectively reducing the risk of damage to the flow channel plate 12 and the heating element 30. In addition, the structural layout of the water heater 100 can be optimized, thereby effectively improving the efficiency of heating the fluid in the heating flow channel 101.

[0065] In one embodiment of the utility model, as shown in Figure 2 the side wall of the shell 11 on the second direction (for example Figure 2 the up-down direction) is a first plate 111, the second direction is the thickness direction of the flow channel plate 12, the side surface of the flow channel plate 12 facing the first plate 111 is formed with the open heating flow channel 101 and bypass flow channel 102, and the flow channel plate 12 is connected with the first plate 111 to cover the heating flow channel 101 and bypass flow channel 102 by the first plate 111.

[0066] In one specific example, as shown in Figure 2 the lower side wall of the shell 11 is a first plate 111, and the lower side surface of the flow channel plate 12 is formed with the open heating flow channel 101 and bypass flow channel 102, that is, the open ports of the heating flow channel 101 and bypass flow channel 102 face the first plate 111, and further, the first plate 111 is connected with the flow channel plate 12 by welding, so that the first plate 111 can cover the heating flow channel 101 and bypass flow channel 102 and effectively ensure the sealing performance of the heating flow channel 101 and bypass flow channel 102.

[0067] The embodiment can facilitate the manufacturing of the flow channel plate 12, effectively ensure the manufacturing precision of the shapes and sizes of the heating flow channel 101 and the bypass flow channel 102 on the flow channel plate 12, and effectively improve the processing efficiency of the flow channel plate 12.

[0068] In one embodiment of the utility model, as shown in Figure 2 The water heater 100 further comprises a temperature sensor, which is arranged at the position of the liquid outlet 104 and is electrically connected with the valve 20. In one specific example, the temperature sensor is also electrically connected with the ECU (Electronic Control Unit) of the vehicle.

[0069] It should be noted that the temperature sensor can monitor the temperature of the fluid at the liquid outlet 104 in real time, convert the monitored temperature data into an electric signal, and then transmit the electric signal to the ECU of the vehicle. Further, after receiving and processing these data, the ECU of the vehicle can decide whether and how to change the state of the valve 20 according to the user's requirements and commands.

[0070] The embodiment can facilitate the manufacturing of the flow channel plate 12, effectively ensure the manufacturing precision of the shapes and sizes of the heating flow channel 101 and the bypass flow channel 102 on the flow channel plate 12, and effectively improve the processing efficiency of the flow channel plate 12.

[0071] The vehicle according to the second aspect of the utility model comprises the water heater 100 according to the first aspect of the utility model. In one specific example, the water heater 100 of the present application is arranged on the temperature control circuit and located in the front compartment of the vehicle, and the water heater 100 can heat the passenger compartment or the battery. Further, the shell 11 of the water heater 100 is provided with a mounting portion, and the water heater 100 can be detachably mounted in the front compartment through the mounting portion.

[0072] According to the vehicle of the embodiment of the utility model, through setting the water heater 100 of the first aspect, the valve 20 can control the flow size of the fluid in the heating flow channel 101 and the bypass flow channel 102, thereby effectively adjusting the mixing ratio of the cold and hot fluid at the liquid outlet 104, and further effectively adjusting the fluid temperature at the liquid outlet 104, so that the temperature control switch of the heating element 30 can be avoided from frequently turning on and off, thereby effectively reducing the failure rate of the temperature control switch of the heating element 30, and further effectively improving the stability and reliability of the water heater 100.

[0073] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0074] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0075] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0076] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without mutual contradiction.

[0077] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A water heater characterized by, The water heater comprises: a flow channel shell, in which a heating flow channel and a bypass flow channel are defined, and in which an inlet and an outlet are formed, two ends of the heating flow channel being in communication with the inlet and the outlet respectively, and two ends of the bypass flow channel being in communication with the inlet and the outlet respectively; a valve arranged in the flow channel shell, configured to adjust the opening degree of the bypass flow channel; a heating element configured to heat the fluid in the heating flow channel.

2. The water heater of claim 1, wherein, The valve comprises a valve plate movably arranged in the bypass flow channel, configured to cut off or conduct the bypass flow channel.

3. The water heater of claim 2, wherein, The valve plate comprises a plate body and a waterproof layer covering the outer surface of the plate body.

4. The water heater of claim 2, wherein, The valve further comprises a driving motor arranged outside the bypass flow channel and a connecting shaft connected between the driving motor and the valve plate, the driving motor driving the valve plate to rotate through the connecting shaft.

5. The water heater of claim 1, wherein, The inlet and the outlet are arranged on the same side of the flow channel shell in a first direction, the bypass flow channel is arranged on the side of the flow channel shell facing the inlet and the outlet, the heating flow channel is arranged on the side of the bypass flow channel facing away from the inlet and the outlet in the first direction, and the heating flow channel extends in the flow channel shell in a bent manner.

6. The water heater of claim 1, wherein, The number of the heating flow channels is one or multiple arranged in parallel between the inlet and the outlet.

7. The water heater of any one of claims 1-6, wherein, The flow channel shell comprises an outer shell and a flow channel plate arranged in the outer shell, the heating flow channel and the bypass flow channel are formed on the flow channel plate, and the heating element is arranged in the outer shell and in contact with the region of the flow channel plate where the heating flow channel is formed.

8. The water heater of claim 7, wherein, The side wall of the outer shell in a second direction is a first plate, the second direction being the thickness direction of the flow channel plate, the side surface of the flow channel plate facing the first plate is formed with the open heating flow channel and the bypass flow channel, and the flow channel plate is connected with the first plate to cover the heating flow channel and the bypass flow channel through the first plate.

9. The water heater of claim 1, wherein, Further comprising a temperature sensor arranged at the position of the outlet, the temperature sensor being electrically connected with the valve.

10. A vehicle characterized by comprising: The water heater comprises the water heater according to any one of claims 1-9. The water heater comprises the water heater according to any one of claims 1-9.

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