A heating device, a heating method, and a vehicle

Abstract

This invention belongs to the technical field of automotive air conditioning equipment, and discloses a heating device, a heating method, and a vehicle. The heating device includes a shell, a cover plate, a heat exchanger, and a heating pad. The shell has a receiving space and an opening communicating with the receiving space; the cover plate is used to open or close the opening; the heat exchanger is disposed within the receiving space and is used to heat the heating medium passing through the heat exchanger; the heating pad is disposed within the receiving space and connected to the heat exchanger. The heating pad includes an outer packaging and a heating filler, the heating filler being a mixture composed of activated reduced iron powder, activated carbon, a composite low-temperature catalyst, deionized purified water, a water-retaining agent, and diatomaceous earth. This heating device, heating method, and vehicle can reduce the battery energy consumption of new energy vehicles, increase the vehicle's driving range, and save on vehicle development and operating costs.

Description

Technical Field

[0001] This invention relates to the field of automotive air conditioning equipment technology, and more particularly to a heating device, heating method, and vehicle. Background Technology

[0002] When new energy vehicles are used in low-temperature environments, the driving range is significantly reduced due to the need for in-vehicle heating and the degradation of battery discharge performance at low temperatures. This is especially true in northern regions, where winter driving range is significantly reduced, battery charging is slow at low temperatures, and the density of public charging stations is low. Range anxiety combined with charging anxiety restricts the penetration rate of electric vehicles in the northern market.

[0003] Currently, manufacturers generally use PTC (Positive Temperature Coefficient) devices and heat pump air conditioners to meet the heating needs of vehicles. However, since both PTC devices and heat pump air conditioners require electricity, they further consume the vehicle's power battery. This results in a reduction in the driving range of new energy vehicles in low-temperature environments, especially at -20°C and below, requiring frequent charging and leading to a poor user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a heating device, heating method, and vehicle that can reduce the battery energy consumption of new energy vehicles, increase the driving range of vehicles, and save on vehicle development and usage costs.

[0005] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, a heating device is provided, comprising a housing, a cover plate, a heat exchanger, and a heating pad. The housing has a receiving space and an opening communicating with the receiving space; the cover plate is used to open or close the opening; the heat exchanger is disposed within the receiving space and is used to heat a heating medium passing through the heat exchanger; the heating pad is disposed within the receiving space and is connected to the heat exchanger. The heating pad includes an outer packaging and a heating filler, the heating filler being a mixture composed of activated reduced iron powder, activated carbon, a composite low-temperature catalyst, deionized purified water, a water-retaining agent, and diatomaceous earth.

[0006] Preferably, the outer packaging has adhesive on the outside, and the heating pad is connected to the heat exchanger by the adhesive.

[0007] Preferably, the heating filler comprises 60%-65% activated reduced iron powder, 15%-20% activated carbon, 9%-10% composite low-temperature catalyst, 8%-9% deionized purified water, 1%-5% water-retaining agent, and 1%-3% diatomaceous earth, based on the total mass of the heating filler.

[0008] Preferably, the cover plate is provided with an air inlet, which is connected to the accommodating space. The heating device also includes an adjusting plate, a transmission shaft and a driving component. The driving component is installed on the cover plate, and the two ends of the transmission shaft are respectively connected to the adjusting plate and the driving component. The driving component is used to drive the adjusting plate to slide relative to the cover plate along the length direction of the transmission shaft to adjust the opening of the air inlet.

[0009] Preferably, the particle size of the activated reduced iron powder is greater than or equal to 180 mesh.

[0010] Preferably, the outer packaging is a temperature-sensitive, breathable polymer membrane.

[0011] Preferably, the heating device includes multiple heating pads, the active reduced iron powder of the multiple heating pads having different particle sizes, and one of the multiple heating pads is connected to a heat exchanger.

[0012] Preferably, the heating device further includes a heat insulation layer disposed on the inner wall of the outer casing.

[0013] Secondly, a heating method is provided, applicable to any of the above-mentioned technical solutions in the heating apparatus, the heating method comprising: Obtain the ambient temperature; Set a preset temperature threshold range, which includes a first temperature threshold range, a second temperature threshold range, and a third temperature threshold range, ranging from low to high. Based on the ambient temperature and a preset temperature threshold range, the oxygen content in the containment space is changed, including a first oxygen content, a second oxygen content, and a third oxygen content set sequentially from high to low; or, based on the ambient temperature and a preset temperature threshold range, the particle size of the active reduced iron powder in the heating patch is changed, including particle sizes greater than or equal to 180 mesh, less than 180 mesh but greater than or equal to 120 mesh, and less than 120 mesh but greater than or equal to 80 mesh.

[0014] Thirdly, a vehicle is provided, comprising: a water pump, a three-way connector, an air conditioning and heating system, a battery heating system, and a heating device according to any of the above technical solutions. The three-way connector includes a first interface, a second interface, and a third interface. The first interface is selectively connected to or disconnected from the second interface and / or the third interface. The heat exchanger includes an inlet end and an outlet end. The water pump is connected to the inlet end pipeline, the outlet end is connected to the first interface pipeline, the second interface is connected to the input end pipeline of the air conditioning and heating system, the third interface is connected to the input end pipeline of the battery heating system, and the output end of the air conditioning and heating system and the output end of the battery heating system are both connected to the water pump.

[0015] The beneficial effects of this invention are as follows: This invention provides a heating device, a heating method, and a vehicle. The heating device utilizes a heating pad, relying on the heat released through the oxidation of chemical materials within the pad to provide heat. This eliminates the need to consume power from the vehicle's battery, unlike traditional PTC devices and heat pump air conditioners which require electricity for heating. Winter vehicle heating and battery preheating no longer require additional battery power, reducing energy consumption at the source. This improves the range reduction issue of new energy vehicles in low-temperature environments, reduces frequent charging, alleviates range anxiety and charging anxiety, lowers user costs, and enhances the user experience. Furthermore, replacing traditional PTC devices and heat pump air conditioners with heating pads saves on product development and manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the heating device provided by the present invention; Figure 2 This is a top view of the heating device provided in Embodiment 1 of the present invention.

[0017] In the picture: 1. Water pump; 2. Water pump outlet pipe; 3. Heat exchanger; 4. Heat exchanger outlet pipe; 5. T-joint; 6. Heater core inlet pipe; 7. Heater core; 8. Blower; 9. Water pump inlet pipe; 10. Power battery inlet pipe; 11. Power battery; 12. Power battery outlet pipe; 13. Outer shell; 14. Cover plate; 15. Heating pad; 16. Insulation layer; 17. Air inlet; 18. Adjustment plate; 19. Drive shaft; 20. Drive component. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0019] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0022] Example 1 Firstly, please refer to Figure 1 This embodiment provides a heating device, including a shell 13, a cover plate 14, a heat exchanger 3, and a heating pad 15. The shell 13 has a receiving space and an opening communicating with the receiving space; the cover plate 14 is used to open or close the opening; the heat exchanger 3 is disposed in the receiving space and is used to heat the heating medium passing through the heat exchanger 3; the heating pad 15 is disposed in the receiving space and is connected to the heat exchanger 3. The heating pad 15 includes an outer packaging and a heating filler, which is a mixture composed of activated reduced iron powder, activated carbon, composite low-temperature catalyst, deionized purified water, water-retaining agent, and diatomaceous earth.

[0023] With this configuration, the heating device generates heat through the oxidation of chemical materials within the heating pad 15, eliminating the need to consume the onboard power battery 11. This differs from traditional PTC devices and heat pump air conditioners, which require electricity for heating. Winter vehicle heating and battery preheating no longer consume additional power from the power battery 11, reducing energy loss at the source. This improves the range reduction issue of new energy vehicles in low-temperature environments, reduces frequent charging, alleviates range anxiety and charging anxiety, lowers user costs, and enhances the user experience. Furthermore, replacing traditional PTC devices and heat pump air conditioners with the heating pad 15 saves on product development and manufacturing costs.

[0024] Optionally, adhesive tape is provided on the outside of the outer packaging, and the heating pad 15 is connected to the heat exchanger 3 via the adhesive tape. This arrangement facilitates the assembly or replacement of the heating pad 15, reducing the labor and auxiliary material costs of the entire vehicle production.

[0025] Optionally, based on the total mass of the heating filler as 100%, the heating filler includes 60%-65% activated reduced iron powder, 15%-20% activated carbon, 9%-10% composite low-temperature catalyst, 8%-9% deionized purified water, 1%-5% water-retaining agent, and 1%-3% diatomaceous earth.

[0026] Specifically, in this embodiment, the heating filler comprises 61% activated reduced iron powder, 17.5% activated carbon, 9.5% composite low-temperature catalyst, 8.5% deionized purified water, 2.0% water-retaining agent, and 1.5% diatomaceous earth, based on the total mass of the heating filler as 100%.

[0027] Preferably, the water-retaining agent is a superabsorbent polymer, and the composite low-temperature catalyst includes NaCl, CaCl2, and MgCl2.

[0028] Alternatively, please refer to Figure 2 The cover plate 14 is provided with an air inlet, which communicates with the receiving space. The heating device also includes an adjusting plate 18, a drive shaft 19, and a driving component 20. The driving component 20 is mounted on the cover plate 14, and the two ends of the drive shaft 19 are respectively connected to the adjusting plate 18 and the driving component 20. The driving component 20 is used to drive the adjusting plate 18 to slide relative to the cover plate 14 along the length direction of the drive shaft 19 to adjust the opening of the air inlet. Specifically, the driving component 20 is a drive motor. With this configuration, the adjusting plate 18 is moved by the motor, and the adjusting plate 18 can cover at least part of the air inlet, thereby adjusting the opening of the air inlet. By adjusting the opening of the air inlet, the oxygen content in the receiving space can be changed, thereby dynamically controlling the oxidation reaction rate and heat release of the iron powder in the heating patch 15.

[0029] Specifically, the larger the opening of the air inlet, the higher the oxygen content of the space, and the higher the heating efficiency of the heating patch 15.

[0030] Optionally, the particle size of the activated reduced iron powder is greater than or equal to 180 mesh. Preferably, in this embodiment, the particle size of the activated reduced iron powder is 200 mesh.

[0031] Understandably, this embodiment does not specifically limit the particle size of the activated reduced iron powder, which can be 190 mesh, 210 mesh, etc. Those skilled in the art can adjust the particle size of the activated reduced iron powder according to the adaptability to the ambient temperature.

[0032] Optionally, the outer packaging is a temperature-sensitive, breathable polymer membrane. Specifically, the temperature-sensitive polymer membrane can change its pore size according to different ambient temperatures. The lower the ambient temperature, the larger the pores of the membrane, allowing more oxygen to enter the outer packaging, and thus increasing the heating power of the heating patch 15. This design enables the heating device to adaptively adjust its heating power according to the ambient temperature, meeting the battery preheating and interior heating needs of new energy vehicles in low-temperature environments, mitigating low-temperature range degradation, and reducing user charging and battery wear costs.

[0033] Optionally, the heating device also includes a heat insulation layer 16, which is disposed on the inner wall of the outer casing 13. Specifically, the heat insulation layer 16 is thermal insulation cotton. With this configuration, by providing the heat insulation layer 16 on the inner wall of the outer casing 13, heat loss from the containment space to the outside of the outer casing 13 can be prevented, ineffective heat loss can be reduced, the heat transfer efficiency to the heat exchanger 3 can be improved, the oxidation consumption of iron powder inside the heating pad 15 can be slowed down under the same heating demand, the single use time of the heating pad 15 can be extended, and the user's consumable replacement cost can be reduced.

[0034] Secondly, this embodiment provides a heating method applied to the aforementioned heating device, the heating method comprising: Obtain the ambient temperature; Set a preset temperature threshold range, which includes a first temperature threshold range, a second temperature threshold range, and a third temperature threshold range, ranging from low to high. The oxygen content in the containment space is changed according to the ambient temperature and the preset temperature threshold range. The oxygen content includes a first oxygen content, a second oxygen content, and a third oxygen content set in descending order.

[0035] Specifically, the first temperature threshold range is -30℃ to -10℃, the second temperature threshold range is -10℃ to 5℃, and the third temperature threshold range is 5℃ to 15℃.

[0036] When the ambient temperature is within the first temperature threshold range, the heating device adjusts the opening of the air inlet of the cover plate 14 via the moving adjustment plate 18 to control the oxygen content in the containment space to the first oxygen content. At this time, the maximum heating power of the heating pad 15 is 5.7kW. When the ambient temperature is within the second temperature threshold range, the heating device adjusts the opening of the air inlet of the cover plate 14 via the moving adjustment plate 18 to control the oxygen content in the containment space to the second oxygen content. At this time, the maximum heating power of the heating pad 15 is 2kW. When the ambient temperature is within the third temperature threshold range, the heating device adjusts the opening of the air inlet of the cover plate 14 via the moving adjustment plate 18 to control the oxygen content in the containment space to the third oxygen content. At this time, the maximum heating power of the heating pad 15 is 1.1kW.

[0037] Thirdly, a vehicle is provided, comprising: a water pump 1, a three-way connector 5, an air conditioning and heating system, a battery heating system, and the aforementioned heating device. The three-way connector 5 includes a first interface, a second interface, and a third interface. The first interface is selectively connected to or disconnected from the second interface and / or the third interface. The heat exchanger 3 includes an inlet end and an outlet end. The water pump 1 is connected to the inlet end pipeline, the outlet end is connected to the first interface pipeline, the second interface is connected to the input end pipeline of the air conditioning and heating system, the third interface is connected to the input end pipeline of the battery heating system, and the output end of the air conditioning and heating system and the output end of the battery heating system are both connected to the water pump 1.

[0038] Specifically, water pump 1 is an electronic water pump, three-way connector 5 is an electronically adjustable three-way valve, the air conditioning and heating system includes a heater core 7 and a blower 8, and the battery heating system includes a power battery 11.

[0039] Water pump 1 is connected to the heating device via water pump outlet pipe 2. The heating device is connected to the tee connector 5 via heat exchanger outlet pipe 4. The tee connector 5 is connected to the heater core 7 via heater core inlet pipe 6. The tee connector 5 is connected to the power battery 11 via power battery inlet pipe 10. The power battery 11 is connected to the water pump inlet pipe 9 via power battery outlet pipe 12, and the water pump inlet pipe 9 is connected between the heater core 7 and water pump 1. Heat exchanger 3 heats the cold water flowing through it to form a heat transfer fluid. The heat transfer fluid passes through heater core 7 and transfers heat to the cold air passing through the air duct, thereby generating warm air. Blower 8 is used to blow the warm air into the vehicle's cabin.

[0040] Example 2 To further reduce costs, this second embodiment provides a heating device, a heating method, and a vehicle, as detailed below: This second embodiment is basically the same as the heating device, heating method, and vehicle provided in the first embodiment, except that: Firstly, the heating device includes multiple heating pads 15, the active reduced iron powder of the multiple heating pads 15 having different particle sizes, and one of the multiple heating pads 15 is selectively connected to the heat exchanger 3.

[0041] Specifically, the plurality of heating pads 15 include a first heating pad, a second heating pad, and a third heating pad. The particle size of the first heating pad is greater than or equal to 180 mesh; the particle size of the second heating pad is less than 180 mesh and greater than or equal to 120 mesh; and the particle size of the third heating pad is less than 120 mesh and greater than or equal to 80 mesh.

[0042] Furthermore, the outer packaging is made of ordinary industrial breathable film, thereby reducing the production cost of the heating patch 15.

[0043] Secondly, a heating method is provided for use in the aforementioned heating device, the heating method comprising: Obtain the ambient temperature; Set a preset temperature threshold range, which includes a first temperature threshold range, a second temperature threshold range, and a third temperature threshold range, ranging from low to high. Based on the ambient temperature and the preset temperature threshold range, the particle size of the active reduced iron powder in the heating patch 15 is changed. The particle size of the active reduced iron powder includes ≥180 mesh, <180 mesh and ≥120 mesh, and <120 mesh and ≥80 mesh.

[0044] Specifically, the first temperature threshold range is -30℃ to -10℃, the second temperature threshold range is -10℃ to 5℃, and the third temperature threshold range is 5℃ to 15℃.

[0045] When the ambient temperature is within the first temperature threshold range, the first heating pad is installed in the containment space, and the maximum heating power of the heating pad 15 is 5.7kW; when the ambient temperature is within the second temperature threshold range, the second heating pad is installed in the containment space, and the maximum heating power of the heating pad 15 is 2kW; when the ambient temperature is within the third temperature threshold range, the third heating pad is installed in the containment space, and the maximum heating power of the heating pad 15 is 1.1kW.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A heating device, characterized in that, include: The outer casing (13) has a receiving space and an opening communicating with the receiving space; A cover plate (14) for opening or closing the opening; Heat exchanger (3), the heat exchanger (3) is disposed in the accommodating space, the heat exchanger (3) is used to heat the heating medium passing through the heat exchanger (3); Heating patch (15), the heating patch (15) is disposed in the accommodating space and the heating patch (15) is connected to the heat exchanger (3). The heating patch (15) includes an outer packaging and a heating filler. The heating filler is a mixture composed of activated reduced iron powder, activated carbon, composite low temperature catalyst, deionized purified water, water retention agent and diatomaceous earth.

2. The heating device according to claim 1, characterized in that, The outer packaging is provided with adhesive, and the heating patch (15) is connected to the heat exchanger (3) through the adhesive.

3. The heating device according to claim 2, characterized in that, Based on the total mass of the heating filler as 100%, the heating filler includes 60%-65% of the activated reduced iron powder, 15%-20% of the activated carbon, 9%-10% of the composite low-temperature catalyst, 8%-9% of the deionized purified water, 1%-5% of the water-retaining agent, and 1%-3% of the diatomaceous earth.

4. The heating device according to claim 3, characterized in that, The cover plate (14) is provided with an air inlet, which is connected to the accommodating space. The heating device also includes an adjusting plate (18), a transmission shaft (19), and a driving member (20). The driving member (20) is installed on the cover plate (14). The two ends of the transmission shaft (19) are respectively connected to the adjusting plate (18) and the driving member (20). The driving member (20) is used to drive the adjusting plate (18) to slide relative to the cover plate (14) along the length direction of the transmission shaft (19) to adjust the opening of the air inlet.

5. The heating device according to claim 4, characterized in that, The particle size of the activated reduced iron powder is greater than or equal to 180 mesh.

6. The heating device according to claim 4, characterized in that, The outer packaging is a temperature-sensitive, breathable polymer membrane.

7. The heating device according to claim 3, characterized in that, The heating device includes a plurality of heating pads (15), the active reduced iron powder of the plurality of heating pads (15) having different particle sizes, and one of the plurality of heating pads (15) is selectively connected to the heat exchanger (3).

8. The heating device according to any one of claims 1-7, characterized in that, The heating device further includes a heat insulation layer (16), which is disposed on the inner wall of the outer shell (13).

9. A heating method, characterized in that, The heating method, applied to the heating apparatus according to any one of claims 1-8, comprises: Obtain the ambient temperature; A preset temperature threshold range is set, which includes a first temperature threshold range, a second temperature threshold range, and a third temperature threshold range, ranging from low to high. According to the ambient temperature and the preset temperature threshold range, the oxygen content in the containment space is changed, and the oxygen content includes a first oxygen content, a second oxygen content and a third oxygen content set in descending order; or, according to the ambient temperature and the preset temperature threshold range, the particle size of the active reduced iron powder in the heating patch (15) is changed, and the particle size of the active reduced iron powder includes greater than or equal to 180 mesh, less than 180 mesh and greater than or equal to 120 mesh, and less than 120 mesh and greater than or equal to 80 mesh.

10. A vehicle, characterized in that, include: The water pump (1), the three-way connector (5), the air conditioning heating system, the battery heating system, and the heating device according to any one of claims 1-8, wherein the three-way connector (5) includes a first interface, a second interface, and a third interface, wherein the first interface is selectively connected to or disconnected from the second interface and / or the third interface, the heat exchanger (3) includes an inlet end and an outlet end, the water pump (1) is connected to the inlet end pipeline, the outlet end is connected to the first interface pipeline, the second interface is connected to the input end pipeline of the air conditioning heating system, the third interface is connected to the input end pipeline of the battery heating system, and the output end of the air conditioning heating system and the output end of the battery heating system are both connected to the water pump (1).

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