Deicing device

Abstract

The utility model discloses a deicing device, and belongs to the technical field of new energy vehicles, the deicing device is used for deicing a battery replacing vehicle, a battery pack of the battery replacing vehicle is installed at the bottom of a vehicle body through a locking mechanism so as to achieve quick replacement of the battery pack, and the deicing device comprises a machine body, an air outlet unit installed on the machine body and a heat supply unit for conveying hot air to the air outlet unit; the air outlet unit can move to the position below the locking mechanism along with the body to convey hot air to the locking mechanism. The air outlet unit comprises an air storage cavity and an air outlet, the air storage cavity communicates with the heat supply unit and accommodates hot air provided by the heat supply unit, at least part of the area, close to the air outlet, of the air storage cavity forms an air gathering section, and the air gathering section is gradually folded from the end away from the air outlet to the end close to the air outlet. And the wind gathering section has the effects of gathering the hot wind and enhancing the motion kinetic energy of the hot wind, so that the motion time of the hot wind between the air outlet and the locking mechanism is shortened, and the ice melting efficiency of the locking mechanism is improved.

Description

Technical Field

[0001] This application belongs to the field of new energy vehicles, and particularly relates to an ice removal device. Background Art

[0002] With the entry of electric vehicles into the market, the driving range has become an important factor hindering their development. Drawing on the way traditional vehicles achieve extended driving range by refueling, for electric vehicles, charging a depleted battery pack or directly disassembling the depleted battery pack to replace it with a fully charged one has become a key research and development direction for increasing the driving range of electric vehicles.

[0003] Limited by battery material technology and charging technology, it takes at least dozens of minutes to fully charge a new energy vehicle after it runs out of power. For some new energy freight vehicles with larger battery pack capacities, even more charging time is required, which greatly affects the driving experience of users. Especially for some commercial vehicle owners, waiting for charging means reducing their working hours. The time required to replace the battery pack is much shorter than the charging duration of the battery pack. Therefore, more and more new energy vehicles use detachable battery packs for energy supply, solving the disadvantages of long charging time and inconvenient charging of fixed battery packs. Specifically, multiple locking mechanisms need to be installed on the bottom of the vehicle, and the installation or disassembly of the battery pack is achieved by locking or unlocking the locking mechanisms with the mating parts on the battery pack. Moreover, for such new energy vehicles, due to the large weight and volume of the battery pack, special battery swapping equipment is required to disassemble and install the battery pack. However, in cold weather in the north, especially after heavy snow or rain, a thick layer of ice will cover the bottom of the vehicle chassis. The ice layer will also wrap the locking mechanism, affecting the unlocking of the locking mechanism, resulting in the battery pack being frozen to the bottom of the vehicle and being difficult or even impossible to disassemble. This will greatly increase the battery swapping time of the vehicle and cause congestion in the battery swapping station.

[0004] Therefore, before replacing the battery pack, an ice removal device needs to be used to melt the ice layer on the locking mechanism. The speed of ice removal directly affects the duration required for the entire battery swapping process, and the battery swapping duration is the most critical factor determining the user's battery swapping experience. Therefore, how to design an ice removal device that can quickly melt ice has become a technical problem that urgently needs to be solved in this technical field. Utility Model Content

[0005] This application provides an ice removal device to solve the technical problem that in cold weather, the ice layer at the bottom of the battery swapping vehicle freezes the battery pack locking mechanism, making it difficult or even impossible to disassemble the battery pack, resulting in difficult battery swapping and low battery swapping efficiency.

[0006] The technical solution adopted in this application is as follows:

[0007] An ice removal device is used for removing ice from a battery swapping vehicle. The battery pack of the battery swapping vehicle is installed at the bottom of the vehicle body through a locking mechanism to facilitate quick swapping of the battery pack. The ice removal device includes a body, an air outlet unit installed on the body, and a heating unit that conveys hot air to the air outlet unit. The air outlet unit can move with the body to convey hot air to the locking mechanism below the locking mechanism; the air outlet unit includes an air storage cavity and an air outlet. The air storage cavity is communicated with the heating unit and accommodates the hot air provided by the heating unit. At least a part of the area of the air storage cavity near the air outlet forms a wind gathering section, and the cross section of the wind gathering section gradually decreases from one end away from the air outlet to one end close to the air outlet.

[0008] By adopting the above technical solution, when de-icing the locking mechanism, first drive the air outlet unit to move under the locking mechanism by moving the fuselage. After the air outlet unit is aligned with the locking mechanism, the heating unit conveys hot air to the air outlet unit, and the hot air is sprayed to the locking mechanism through the air outlet of the air outlet unit, so as to realize the thermal melting of the ice layer at the locking mechanism. Since the air outlet unit is provided with an air storage cavity, during the process of the heating unit conveying hot air to the air outlet unit, the hot air will first converge in the air storage cavity. After the air storage cavity is full of hot air, due to the continuous hot air perfusion of the heating unit into the air storage cavity, the air pressure in the air storage cavity continuously increases. Under the action of pressure, the hot air in the air storage cavity is ejected from the air outlet. The structural form of the air outlet can be adjusted adaptively according to the structural form of the locking mechanism. For any structural form of the air outlet, it can make the hot air in the air storage cavity be evenly ejected from the air outlet under the action of air pressure, which helps to improve the uniformity of de-icing the locking mechanism, reduce the possibility that some areas of the locking mechanism have been de-iced while there is still a large amount of ice in other areas, and thus helps to improve the de-icing efficiency; furthermore, at least part of the area of the air storage cavity near the air outlet also constitutes a wind gathering section. With this setting, when the hot air in the air storage cavity moves towards the air outlet under the action of air pressure, since the cross-section of the wind gathering section continuously decreases towards the air outlet, the moving space left for the hot air is continuously compressed, and the hot air is continuously squeezed in the gradually shrinking space. Since the heating unit continuously supplies air to the air storage cavity, the hot air located in the wind gathering section must be discharged from the air outlet at a faster speed to ensure the air pressure balance in the air storage cavity; therefore, the wind gathering section has the effects of gathering the hot air and enhancing the kinetic energy of the hot air movement, so that the hot air ejected from the air outlet can quickly move to the ice layer of the locking mechanism at a relatively fast speed. On the one hand, it shortens the movement time of the hot air between the air outlet and the locking mechanism, which helps to reduce the heat dissipation of the hot air from the air storage port to the locking mechanism, so that the hot air reaching the locking mechanism can maintain a higher heat energy, which helps to improve the de-icing efficiency of the locking mechanism; on the other hand, since the hot air ejected from the air outlet has a relatively high ejection speed, the hot air is not easily deflected during the movement towards the locking mechanism due to factors such as air flow, air pressure or others, and the vast majority or even all of the hot air can smoothly reach the locking mechanism, effectively improving the output efficiency of the hot air to the ice layer and further improving the de-icing effect of the de-icing device.

[0009] The air outlet is located at the top of the air storage cavity. The air storage cavity has a first air guiding surface and a second air guiding surface arranged at intervals corresponding to the wind gathering section. The gap between the first air guiding surface and the second air guiding surface forms the air outlet. The first air guiding surface and the second air guiding surface extend in a direction gradually away from each other from the end close to the air outlet to the end far from the air outlet.

[0010] By adopting the above technical solution, setting the air outlet at the top of the air storage cavity can shorten the distance between the air outlet and the locking mechanism, reduce the movement duration of the hot air between the air outlet and the locking mechanism, thereby helping to shorten the heat loss during the movement of the hot air ejected from the air outlet and towards the locking mechanism, and improving the ice melting efficiency of the deicing device; in addition, since the hot air delivered by the heating unit to the air storage cavity moves randomly in the air storage cavity under the action of kinetic energy, and the mutual impact between the hot air makes the movement direction of the hot air more chaotic, by arranging the first air guiding surface and the second air guiding surface at the air gathering section, the hot air in the air storage cavity can be guided. Under the guiding action of the first air guiding surface and the second air guiding surface, the hot air gradually converges along the direction close to the air outlet, and during the convergence process of the hot air towards the air outlet, its movement direction is continuously adjusted under the action of the first air guiding surface and the second air guiding surface, so that the hot air can move towards the locking mechanism after moving to the air outlet, reducing the probability of the hot air escaping in all directions after being ejected from the air outlet due to the deviation of the movement direction, thereby further improving the ice melting efficiency of the deicing device.

[0011] The first air guiding surface and the second air guiding surface are symmetrically arranged along the air outlet and are both inclined, extending in a direction gradually away from each other from top to bottom; or, the first air guiding surface extends along the horizontal direction, and the second air guiding surface obliquely extends in a direction gradually away from the first air guiding surface from the end close to the air outlet to the end far from the air outlet.

[0012] By adopting the above technical solution, the first air guiding surface and the second air guiding surface are symmetrically arranged, so that the hot air guided by the first air guiding surface and the second air guiding surface to the air outlet has symmetric movement paths, converges at the air outlet and is sprayed onto the locking mechanism together; and by setting the first air guiding surface to extend along the horizontal direction and the second air guiding surface to obliquely extend in a direction gradually away from the first air guiding surface from the end close to the air outlet to the end far from the air outlet, the hot air moves horizontally under the guiding action of the first guiding surface during the movement in the air gathering section, and is continuously converged and squeezed under the action of the second air guiding surface to move quickly.

[0013] On the adjacent sides of the first air guiding surface and the second air guiding surface, there are respectively a first air guiding plate and a second air guiding plate extending upwards. The first air guiding plate and the second air guiding plate are arranged parallel to each other or extend in a direction gradually away from each other from top to bottom to form the air outlet.

[0014] By adopting the above technical solution, the setting of the first air deflector and the second air deflector further guides the hot air, enabling the hot air ejected from the air storage cavity to move upward under the guiding action of the first air deflector and the second air deflector. When the hot air exits the air outlet, it can still move upward vertically under the action of inertia, thereby reducing the probability of the hot air dissipating around after leaving the air outlet and ensuring the retention of the hot air reaching the locking mechanism. In addition, the setting of the first air deflector and the second air deflector also blocks the external environment for the hot air, enabling the hot air to be protected from the influence of external air pressure and air flow during the movement at the air outlet, thereby further guaranteeing the smooth arrival of the hot air at the locking mechanism for ice melting. Moreover, setting the first air deflector and the second air deflector to be parallel and upward makes the movement direction of the hot air in the air outlet vertically upward, enabling the hot air to still have the inertia to move vertically towards the locking mechanism after being ejected from the air outlet. And setting the first air deflector and the second air deflector to gradually move away from top to bottom makes the hot air be further converged and compressed during the movement at the air outlet, so that the hot air ejected from the air outlet has a faster speed to quickly reach the locking mechanism and reduces the loss of heat energy during the movement of the hot air from the air outlet to the locking mechanism.

[0015] There are two rows of the locking mechanisms, which are arranged on both sides of the battery pack along the length direction of the battery pack. There are two corresponding air outlet units. The two air outlet units corresponding to the two rows of the locking mechanisms extend along the width direction of the fuselage respectively. The air outlet extends from one end to the other end of the air outlet unit along the width direction of the fuselage; or, there are multiple locking mechanisms, which are arranged on the battery pack at preset positions. There are multiple air outlets, and the positions of the multiple air outlets correspond to those of the respective locking mechanisms. By adopting the above technical solution, setting the locking mechanisms in two rows can provide a more stable installation and support effect for the battery pack. Setting the air outlet to extend along the width direction of the fuselage enables the hot air ejected from the air storage cavity to evenly supply air to the locking mechanisms located on the side parts in the length direction of the battery pack, improving the air supply uniformity of the de-icing device to each locking mechanism, thereby ensuring that the ice layers at each locking mechanism are evenly heated and the ice melting time is approximately equal; and setting the air outlets to be multiple and arranged in correspondence with each locking mechanism makes the de-icing accuracy of the air outlet unit for the locking mechanism higher. Each air outlet supplies air to the corresponding locking mechanism, improving the utilization efficiency of the hot air on the premise of ensuring uniform air supply and increasing the de-icing efficiency of the de-icing device.

[0016] There are two wind expansion plates provided at the top of the air outlet. The two wind expansion plates are correspondingly arranged on both sides of the air outlet and extend upward in a direction gradually moving away from each other.

[0017] By adopting the above technical solution, since the wind-expanding plate is provided, after the hot air is ejected from the air outlet, part of the hot air continues to move upward in the vertical direction, and part of the hot air has a tendency to move obliquely under the action of air pressure change. This part of the hot air with the tendency to move obliquely moves along the extension direction of the wind-expanding plate under the guiding action of the wind-expanding plate, which not only increases the working efficiency of the hot air but also helps to reduce the requirements for the design of the air outlet size. That is, when the diameter of the air outlet is small, the hot air can still achieve all-round coverage of the ice layer at the locking mechanism under the action of the wind-expanding plate; in addition, when the ice layer above the air outlet is melted, the melted water droplets will drip downward under the action of their own gravity, and the hot air at the air outlet has high heat energy, so it can instantaneously evaporate the water droplets into water vapor. The wind-expanding plate can collect the ice-melt water on the side of the air outlet, so that the water droplets dripping on the wind-expanding plate move along the wind-expanding plate toward the air outlet under the action of their own gravity and are quickly evaporated into water vapor under the action of the hot air, reducing the probability that the ice-melt water droplets fall onto the air outlet unit or other components and interfere with the components of the de-icing device; therefore, by setting the wind-expanding plate, more of the ice layer removed by the de-icing device is released in the form of water vapor, reducing the pressure of collecting and treating the ice-melt water.

[0018] The air storage cavity further includes a third air guiding surface and a fourth air guiding surface. The first air guiding surface is located above the second air guiding surface. One end of the second air guiding surface far from the air outlet is connected to the third air guiding surface. The fourth air guiding surface is connected between the third air guiding surface and the second air guiding surface. The third air guiding surface extends upward obliquely from the second air guiding surface. An accommodation groove is formed between the second air guiding plate, the second air guiding surface and the third air guiding surface to accommodate the ice water that falls after the air outlet unit conveys hot air to the locking mechanism, and both ends of the accommodation groove in the width direction of the fuselage have air guiding through holes communicating with the outside of the fuselage.

[0019] By adopting the above technical solution, on the one hand, the third air guiding surface and the fourth air guiding surface can guide the hot air before it enters the air converging section, so that the hot air enters the converging section more gently under the guiding action of the third air guiding surface and the fourth air guiding surface, reducing the kinetic energy loss caused by the mutual impact of the hot air due to uneven movement directions; in addition, the water droplets and small ice cubes after the ice layer melts will fall downward. The accommodation groove formed by the cooperation of the second air guiding plate, the second air guiding surface and the third air guiding surface provides a receiving platform for the water droplets and ice cubes that fall to the side of the air outlet. The bottom of the accommodation groove is a high-temperature air storage cavity, and the air storage cavity continuously supplies heat to the accommodation groove to quickly heat-melt the ice cubes that fall into the accommodation groove and discharge the ice-melt water out of the fuselage through the air guiding through holes, reducing the pressure of collecting and cleaning the ice water and the risk of the ice-melt water affecting the other components of the de-icing device.

[0020] The de-icing device further includes a transmission pipe that communicates the heating unit with the air storage chamber. The transmission pipe includes a pipe body and a hot air transition member that communicates the pipe body with the air storage chamber. The hot air transition member has a hot air inlet that communicates with the pipe body and a hot air outlet that communicates with the bottom of the air storage chamber. The hot air outlet opens upward to communicate with the bottom surface of the air storage chamber.

[0021] By adopting the above technical solution, when the heating unit conveys hot air to the air storage chamber through the transmission pipe, the hot air in the pipe body will be transmitted to the air storage chamber through the hot air transition member. The hot air transition member functions to connect the pipe body and the air storage chamber, improving the tightness of the connection between the transmission pipe and the air storage chamber, effectively reducing the probability of hot air leakage during the transmission from the heating unit to the air storage chamber, and thus enhancing the hot air transmission rate of the heating unit to the air outlet unit. In addition, the hot air inlet is provided on the side of the hot air transition member, and the pipe body can be selectively arranged to extend horizontally and be connected to the heating unit and the hot air transition member respectively, which helps to flatten the de-icing device. Moreover, the hot air outlet communicates with the bottom surface of the air storage chamber, enabling the hot air entering the air storage chamber from the hot air transition member to gradually accumulate at the bottom of the air storage chamber and fill the air storage chamber from bottom to top before being ejected from the air outlet, which helps to improve the storage stability of the hot air in the air storage chamber.

[0022] The air outlet is located at the top of the air storage chamber. The hot air inlet and the hot air outlet are located on both sides of the hot air transition member. The hot air transition member is provided with two oppositely arranged wind gathering plates near the hot air inlet. The two wind gathering plates extend from one end of the hot air inlet to one end of the hot air outlet and gradually approach each other; and / or, the hot air transition member is provided with a wind guiding plate near the hot air outlet. The wind guiding plate is inclined so that the cross-section of the hot air transition member gradually increases from the end far from the hot air outlet to the end close to the hot air outlet.

[0023] By adopting the above technical solution, setting the air outlet at the top of the air storage cavity can shorten the distance between the air outlet and the locking mechanism, reduce the movement time for the hot air to reach the locking mechanism after being ejected from the air outlet, and help reduce the heat energy loss of the hot air. In addition, a wind-accumulating plate is arranged near the hot air inlet of the hot air transition piece, which can accumulate the hot air entering the hot air transition piece from the hot air inlet. Under the action of the wind-accumulating plate, the movement space of the hot air gradually shrinks, and it quickly moves towards the hot air outlet under the push of the subsequent hot air pressure. That is, the setting of the wind-accumulating plate speeds up the movement speed of the hot air in the hot air transition piece and helps improve the hot air transmission efficiency. Since the hot air outlet is located at the bottom of the air storage cavity, the hot air needs to change its movement direction during the movement from the hot air inlet to the hot air outlet. Therefore, by arranging a wind-guiding plate at the hot air outlet, the cross-sectional area of the hot air transition piece is increased, providing a larger movement space for the hot air, reducing the impact of the hot air on the inner wall of the hot air transition piece during the turning process, and at the same time guiding and turning the hot air in the hot air transition piece, improving the smoothness of the hot air discharged from the hot air outlet in multiple aspects.

[0024] The de-icing device further includes an upper heat insulation member provided on the upper surface of the fuselage. The upper heat insulation member extends horizontally and has a wind-avoiding gap for avoiding the hot air ejected from the air outlet. The projection of the wind-avoiding gap in the vertical direction covers the air outlet; and / or, the de-icing device further includes a lower heat insulation member provided on the lower surface of the fuselage. The projection of the lower heat insulation member in the vertical direction at least covers the transmission pipe and the air outlet unit.

[0025] By adopting the above technical solution, the upper heat insulation member can block the heat dissipated upward by the air outlet unit through the air, slow down the heat loss of the air outlet unit upward, reduce the thermal interference of the air outlet unit on the battery pack, and at the same time help maintain the heat energy content of the hot air ejected from the air outlet, thus helping to improve the de-icing efficiency of the de-icing device. In addition, the upper heat insulation member can also carry the ice melt water and ice cubes falling from above, preventing the ice water from falling onto the air outlet unit or other components of the de-icing device, preventing the dripping ice water from causing heat energy loss to the air outlet unit. At the same time, after the de-icing work is completed, the ice water falling on the upper heat insulation member is also easy to be collected and processed. The lower heat insulation member can block the heat dissipated downward by the hot air in the transmission pipe and the air outlet unit through the air, and slow down the heat loss of the transmission pipe and the air outlet unit downward.

[0026] The locking mechanism has two columns, which are arranged on both sides of the battery pack along the length direction of the battery pack. Two corresponding air outlet units are provided. The two air outlet units respectively extend along the width direction of the fuselage corresponding to the two columns of the locking mechanism. The heating unit is located on one side of one air outlet unit facing away from the other air outlet unit and conveys hot air to the two air outlet units through the transmission pipes respectively. One of the two air outlet units close to the heating unit is provided with an avoidance through groove for the transmission pipe to pass through.

[0027] By adopting the above technical solution, the two columns of the locking mechanism make the connection between the battery pack and the battery swapping vehicle more stable and reliable. The two air outlet units can heat the two columns of the locking mechanism simultaneously, realizing synchronous deicing of the locking mechanisms on both sides of the battery pack and improving the deicing efficiency of the deicing device. Moreover, the air outlet unit close to the heating unit is provided with an avoidance through groove for the hot air transmission pipe to pass through, so that when the hot air transmission pipe passes through the air outlet unit close to the heating unit, it can occupy less space at the top or bottom of the air outlet unit, which helps to flatten the deicing device.

[0028] Due to adopting the above technical solution, the beneficial effects obtained by this application are as follows:

[0029] When deicing the locking mechanism, first drive the air outlet unit to move under the locking mechanism by moving the fuselage. After the air outlet unit is aligned with the locking mechanism, the heating unit conveys hot air to the air outlet unit. The hot air is sprayed to the locking mechanism through the air outlet of the air outlet unit, thereby realizing the thermal melting of the ice layer at the locking mechanism. Since the air outlet unit is provided with an air storage cavity, during the process of the heating unit conveying hot air to the air outlet unit, the hot air will first converge in the air storage cavity. After the air storage cavity is filled with hot air, due to the continuous injection of hot air into the air storage cavity by the hot air unit, the air pressure in the air storage cavity continues to increase. Under the action of pressure, the hot air in the air storage cavity sprays out from the air outlet. The structural form of the air outlet can be adjusted adaptively according to the structural form of the locking mechanism. For any structural form of the air outlet, it can make the hot air in the air storage cavity spray out evenly from the air outlet under the action of air pressure, which helps to improve the uniformity of deicing the locking mechanism, reduces the possibility that some areas of the locking mechanism have been deiced while there is still a large amount of ice layer in other areas, and thus helps to improve the deicing efficiency; furthermore, at least part of the area of the air storage cavity near the air outlet also constitutes a wind gathering section. With this setting, when the hot air in the air storage cavity moves towards the air outlet under the action of air pressure, since the wind gathering section continuously converges towards the air outlet, the moving space left for the hot air is continuously compressed, and the hot air is continuously squeezed in the gradually shrinking space. Since the heating unit continuously supplies air to the air storage cavity, the hot air located in the wind gathering section must be discharged from the air outlet at a faster speed to ensure the air pressure balance in the air storage cavity; therefore, the wind gathering section has the effect of gathering the hot air and enhancing the kinetic energy of the hot air movement, so that the hot air sprayed out from the air outlet can quickly move to the ice layer of the locking mechanism at a faster speed. On the one hand, it shortens the movement time of the hot air between the air outlet and the locking mechanism, thereby helping to reduce the heat dissipation of the hot air from the air storage port to the locking mechanism, enabling the hot air reaching the locking mechanism to maintain higher heat energy, and helping to improve the deicing efficiency of the locking mechanism; on the other hand, since the hot air sprayed out from the air outlet has a high spraying speed, the hot air is not easily affected by factors such as air flow, air pressure or others and deviate during the movement towards the locking mechanism. Most or even all of the hot air can smoothly reach the locking mechanism, effectively improving the output efficiency of the hot air towards the ice layer and further improving the deicing effect of the deicing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0031] Figure 1 is a schematic structural diagram of a deicing device under an embodiment of the present application;

[0032] Figure 2Schematic diagram of the de-icing device under another embodiment of the present application;

[0033] Figure 3 is Figure 2 Enlarged view of part A;

[0034] Figure 4 is Figure 2 Enlarged view of part B;

[0035] Figure 5 Schematic diagram of the structure of part of the de-icing device under one embodiment of the present application;

[0036] Figure 6 Side view of the air outlet unit under one embodiment of the present application;

[0037] Figure 7 Side view of the air outlet unit under another embodiment of the present application;

[0038] Figure 8 Cross-sectional view of part of the de-icing device under another embodiment of the present application;

[0039] Figure 9 Schematic diagram of the structure of the hot air transition part under another embodiment of the present application;

[0040] Figure 10 Schematic diagram of the structure of the de-icing device under yet another embodiment of the present application;

[0041] Figure 11 is Figure 10 Enlarged view of part C;

[0042] Figure 12 The top view of the de-icing device and the battery swapping vehicle under one embodiment of the present application is shown;

[0043] Figure 13 Cross-sectional view of the battery swapping vehicle under one embodiment of the present application.

[0044] Wherein:

[0045] 1 fuselage, 11 active end, 12 driven end, 13 bearing part;

[0046] 2 air outlet unit, 21 air storage cavity, 211 air gathering section, 212 first air guiding surface, 213 second air guiding surface, 214 third air guiding surface, 215 fourth air guiding surface, 22 air outlet, 23 first air guiding plate, 24 second air guiding plate, 25 air expanding plate;

[0047] 3 heating unit;

[0048] 4 accommodation groove;

[0049] 5 air guiding through hole;

[0050] 6 Transmission pipe, 61 Pipe body, 62 Hot air transition piece, 621 Hot air inlet, 622 Hot air outlet, 623 Air collecting plate, 624 Air guiding plate;

[0051] 7 Upper heat insulation piece, 71 Upper heat insulation plate;

[0052] 8 Handrail;

[0053] 9 Movable wheel;

[0054] 10 Vertical plate;

[0055] 110 Positioning piece;

[0056] 120 First linkage piece, 1201 First end, 1202 Second end;

[0057] 130 Second linkage piece, 1301 Third end, 1302 Fourth end;

[0058] 140 Control piece;

[0059] 150 Smoke exhaust pipe;

[0060] 160 Locking mechanism;

[0061] 170 Battery swapping vehicle. Detailed implementation manners

[0062] For a clearer explanation of the overall concept of this application, the following will be described in detail by way of examples in combination with the accompanying drawings of the specification.

[0063] In the following description, many specific details are set forth to facilitate a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited by the specific embodiments disclosed below. It should be noted that, without conflict, the embodiments of this application and the features in each embodiment may be combined with each other.

[0064] In addition, in the description of this application, it should be understood that the orientation or positional relationships indicated by terms such as "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0065] In this application, unless otherwise clearly defined or limited, terms such as "install", "connect", "link", "fix", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0066] In this application, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean 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 this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0067] As Figure 1 , Figure 2 , Figures 5 to 7 , Figure 12 As shown, an ice removal device is used for removing ice from a battery swapping vehicle. The battery pack of the battery swapping vehicle is installed at the bottom of the vehicle body through a locking mechanism to facilitate quick replacement of the battery pack. The ice removal device includes a fuselage 1, an air outlet unit 2 installed on the fuselage 1, and a heating unit 3 that conveys hot air to the air outlet unit 2. The air outlet unit 2 can move with the fuselage 1 to convey hot air to the locking mechanism below the locking mechanism; the air outlet unit 2 includes an air storage cavity 21 and an air outlet 22. The air storage cavity 21 is communicated with the heating unit 3 and accommodates the hot air provided by the heating unit 3. At least a part of the air storage cavity 21 near the air outlet 22 forms a wind gathering section 211, and the cross-section of the wind gathering section 211 gradually decreases from the end far away from the air outlet 22 to the end close to the air outlet 22.

[0068] Figure 12The middle arrow Y indicates the length direction of the battery swap vehicle 170, and the arrow X indicates the movement direction of the de-icing device entering the bottom of the battery swap vehicle 170. The fuselage 1 enters the bottom of the battery swap vehicle 170 along the side of the body. When de-icing the locking mechanism, the air outlet unit 2 is first driven to move to the bottom of the locking mechanism by moving the fuselage 1. When the air outlet unit 2 is aligned with the locking mechanism, the heating unit 3 conveys hot air to the air outlet unit 2, and the hot air is sprayed to the locking mechanism through the air outlet 22 of the air outlet unit 2, thereby achieving thermal melting of the ice layer at the locking mechanism. Since the air outlet unit 2 is provided with an air storage chamber 21, the hot air will first gather in the air storage chamber 21 during the process of the heating unit 3 conveying hot air to the air outlet unit 2. After the air storage chamber 21 is full of hot air, the heating unit 3 continues to fill the air storage chamber 21 with hot air, and the air pressure in the air storage chamber 21 increases continuously. Under the action of the pressure, the hot air in the air storage chamber 21 is ejected from the air outlet 22. The structural form of the air outlet 22 can be adaptively adjusted according to the structural form of the locking mechanism. For any structural form of the air outlet 22, the air storage chamber 21 can be made to The hot air in the air storage chamber 21 is uniformly ejected from the air outlet 22 under the action of air pressure, which helps to improve the uniformity of ice melting on the locking mechanism and reduce the possibility that ice melting is completed in some areas of the locking mechanism while a large amount of ice still exists in other areas, thereby helping to improve the ice melting efficiency; furthermore, the air storage chamber 21 is also configured with an air gathering section 211 in at least a part of the area near the air outlet 22. With this arrangement, when the hot air in the air storage chamber 21 moves toward the air outlet 22 under the action of air pressure, the cross-section of the air gathering section 211 is continuously reduced toward the air outlet 22, so that the hot air is left The movement space is constantly compressed, and the hot air is constantly squeezed in the gradually shrinking space. Since the heating unit 3 continuously supplies air to the air storage chamber 21, the hot air located in the air gathering section 211 must be discharged from the air outlet 22 at a faster speed to ensure the balance of the air pressure in the air storage chamber 21; therefore, the air gathering section 211 has the effect of gathering the hot air and enhancing the kinetic energy of the hot air movement, so that the hot air ejected from the air outlet 22 can quickly move to the ice layer of the locking mechanism at a faster speed, which shortens the movement time of the hot air between the air outlet 22 and the locking mechanism, thereby It helps to reduce the heat energy dissipation of the hot air from the air storage port to the locking mechanism, so that the hot air reaching the locking mechanism can maintain higher heat energy, which helps to improve the ice melting efficiency of the locking mechanism; on the other hand, since the hot air ejected from the air outlet 22 has a higher injection speed, the hot air is not easily affected by airflow, air pressure or other factors during the movement to the locking mechanism and is not easily displaced. Most or even all of the hot air can smoothly reach the locking mechanism, which effectively improves the output efficiency of the hot air to the ice layer and further improves the de-icing effect of the de-icing device.

[0069] Preferably, if Figure 10As shown in the figure, along the length direction of the fuselage 1, the fuselage 1 has an active end 11 and a driven end 12 which are oppositely arranged. An acting force is applied to the active end 11 to drive the driven end 12 to enter the bottom of the vehicle body from one side of the vehicle body. A positioning member 110 is provided at the driven end 12, and a vertically extending bearing portion 13 is provided at the active end 11. When the fuselage 1 moves to the bottom of the vehicle body of the battery swapping vehicle, the bearing portion 13 abuts against the side portion of the vehicle body of the battery swapping vehicle. The positioning member 110 is movably connected to the fuselage 1 and can avoid the vehicle body of the battery swapping vehicle when the fuselage 1 enters the bottom of the vehicle body, and can cooperate with the side portion of the vehicle body of the battery swapping vehicle after the fuselage 1 completely enters the bottom of the vehicle body and reaches the position (that is, when the fuselage 1 reaches the corresponding deicing position of the air outlet unit 2 and the locking mechanism) so as to position the air outlet unit 2 at a position opposite to the locking mechanism.

[0070] The active end 11 and the driven end 12 are respectively arranged on the front and rear sides of the fuselage 1, and the bearing portion 13 and the positioning member 110 are respectively arranged on the active end 11 and the driven end 12. On the one hand, it provides a force application position for the operator to drive the fuselage 1. The operator can apply the driving force to the bearing portion 13 to realize the movement of the fuselage 1, reducing the difficulty of moving the fuselage 1. In addition, the positioning member 110 can cooperate with the side portion of the vehicle body after the fuselage 1 completely enters the bottom of the vehicle body. After the positioning member 110 cooperates with the vehicle body, the air outlet unit 2 is aligned with the locking mechanism, so as to realize the precise air supply of the air outlet unit 2 to the locking mechanism. Therefore, the operator can obtain the alignment situation of the air outlet unit 2 by observing the cooperation state between the positioning member 110 and the vehicle body, so there is no need to observe the relative position between the air outlet unit 2 and the locking mechanism from the bottom of the vehicle body upward, greatly reducing the difficulty of adjusting the position of the deicing device for the operator during the deicing operation. On the one hand, it shortens the preparation time required for the air outlet unit 2 to perform position calibration before deicing, thereby improving the deicing efficiency. On the other hand, when the positioning member 110 cooperates with the side portion of the vehicle body, the air outlet unit 2 is in the deicing position opposite to the locking mechanism, thus avoiding the possibility of position deviation between the air outlet unit 2 and the locking mechanism caused by manual alignment, and further improving the deicing efficiency of the deicing device. Moreover, the positioning member 110 and the bearing portion 13 respectively abut against the two sides of the vehicle body of the battery swapping vehicle, so that the positioning member 110 and the bearing portion 13 can respectively block the airflow flowing from the side portion of the vehicle body to the bottom of the vehicle body, reducing the influence of the airflow on the hot air ejected by the air outlet unit 2, improving the heat supply stability of the air outlet unit 2 to the locking mechanism, and at the same time helping to reduce the diffusion of the heat at the bottom of the vehicle body to the side portion of the vehicle body, which helps to further improve the deicing speed of the deicing device.

[0071] Further, the positioning member 110 is rotatably connected to the fuselage 1 and can be switched between a first position and a second position to be in a corresponding horizontal state or vertical state relative to the fuselage 1. The de-icing device further includes a control mechanism connected to the positioning member 110. When the fuselage 1 enters the bottom of the vehicle body, the control mechanism controls the positioning member 110 to switch to the first position to avoid interference with the vehicle body; when the fuselage 1 completely enters the bottom of the vehicle body and is in place, the control mechanism controls the positioning member 110 to switch to the second position to abut against the side of the vehicle body.

[0072] When moving the fuselage 1, the control mechanism controls the positioning member 110 to switch to the first position to allow the fuselage 1 to freely enter and exit the bottom of the battery swapping vehicle body, avoiding the positioning member 110 from touching the vehicle body chassis or other components and affecting the movement of the fuselage 1. When the fuselage 1 completely enters the bottom of the vehicle body, the control mechanism controls the positioning member 110 to switch from the first position to the second position to achieve positioning with the side of the vehicle body; in this way, the operator can control the positioning member 110 to switch between the first position and the second position by operating the control mechanism, so as to adapt to the movement needs of the fuselage 1 and the positioning needs of the air outlet unit 2, and avoid the positioning member 110 from affecting the movement of the fuselage 1 on the basis of ensuring that the positioning member 110 realizes the positioning function of the air outlet unit 2.

[0073] In another embodiment, the positioning member 110 is in plug-in fit with the fuselage 1. The fuselage 1 is provided with a plug-in slot adapted to the positioning member 110 at the driven end 12. The positioning member 110 includes a third position entirely located in the plug-in slot to correspond to the avoidance state of the vehicle body, and a fourth position exposed in the plug-in slot to correspond to the positioning state of cooperating with the side of the vehicle body. The positioning member 110 can be switched between the third position and the fourth position.

[0074] Preferably, as Figure 11 shown, the control mechanism includes a first linkage 120, a second linkage 130 and a control member 140. The first end 1201 of the first linkage 120 is rotatably connected to the positioning member 110. The second end 1202 of the first linkage 120 is rotatably connected to the third end 1301 of the second linkage 130. The fourth end 1302 of the second linkage 130 is rotatably connected to the fuselage 1. The control member 140 is connected to the second end 1202 and the third end 1301 and can drive the position change of the rotation point between the second end 1202 and the third end 1301, so that the first linkage 120 and the second linkage 130 rotate, thereby realizing that the positioning member 110 can be switched between the first position and the second position.

[0075] The control member 140 can act on the second end 1202 of the first linkage 120 and the third end 1301 of the second linkage 130 simultaneously, and drive the first linkage 120 and the second linkage 130 to rotate synchronously, so as to realize the switching of the positioning member 110 between the first position and the second position. During this process, the first linkage 120 and the positioning member 110, the second linkage 130 and the positioning member 110, and the first linkage 120 and the second linkage 130 are all rotationally connected. Therefore, the frictional resistance that needs to be overcome during the movement of the control member 140 driving the first linkage 120 and the second linkage 130 is reduced, so that the switching of the positioning member 110 between the first position and the second position is smoother; in addition, since the first linkage 120 and the second linkage 130 rotate synchronously and approach each other under the drive of the control member 140, the rotation speed of the positioning member 110 is increased, that is, the switching speed from the first position to the second position, thereby reducing the working stroke of the control member when driving the positioning member 110 to switch positions, which helps to optimize the structural design of the control mechanism.

[0076] Preferably, as Figure 1 shown, the body 1 is provided with a handrail 8 above the bearing part 13, and a moving wheel 9 is provided at the bottom of the body 1. The operator pushes and pulls the body 1 in and out of the bottom of the vehicle body through the handrail 8. The application does not limit the moving mode of the body 1. In another embodiment, the body 1 can also be electrically controlled to realize the automation of the body 1 entering and exiting the bottom of the vehicle body.

[0077] Preferably, as Figure 1 shown, the heating unit 3 is arranged in the bearing part 13. Arranging the heating unit 3 in the bearing part 13 can reduce the area of the heating unit 3 exposed to the outside, so that the bearing unit 13 plays a certain protective role for the heating unit 3.

[0078] As a preferred embodiment of the present application, as Figure 6 、 Figure 7 shown, the air outlet 22 is located at the top of the air storage cavity 21. The air storage cavity 21 has a first air guiding surface 212 and a second air guiding surface 213 arranged at intervals at the corresponding air gathering section 211. Thus, the first air guiding surface 212 and the second air guiding surface 213 form the air gathering section 211, and the gap between the first air guiding surface 212 and the second air guiding surface 213 forms the air outlet 22. The first air guiding surface 212 and the second air guiding surface 213 extend in a direction gradually away from each other from the end close to the air outlet 22 to the end far from the air outlet 22.

[0079] The air outlet 22 is arranged at the top of the air storage cavity 21, which can shorten the distance between the air outlet 22 and the locking mechanism, reduce the movement time of the hot air between the air outlet 22 and the locking mechanism, thereby helping to shorten the heat loss during the movement of the hot air ejected from the air outlet 22 and towards the locking mechanism, and improving the ice melting efficiency of the de-icing device; in addition, since the hot air transported by the heating unit 3 to the air storage cavity 21 moves randomly in the air storage cavity 21 under the action of kinetic energy, and the mutual impact between the hot air causes the movement direction of the hot air to be more disordered, by arranging the first air guiding surface 212 and the second air guiding surface 213 at the air gathering section 211, it can play a guiding role in the hot air in the air storage cavity 21. Under the guiding action of the first air guiding surface 212 and the second air guiding surface 213, the hot air gradually converges along the direction close to the air outlet 22, and during the convergence process of the hot air towards the air outlet 22, its movement direction is continuously adjusted under the action of the first air guiding surface 212 and the second air guiding surface 213, so that the hot air can move towards the locking mechanism after moving to the air outlet 22, reducing the probability of the hot air escaping in various directions after being ejected from the air outlet 22 due to the deviation of the movement direction, thereby further improving the ice melting efficiency of the de-icing device.

[0080] This embodiment does not limit the structural forms of the first air guiding surface 212 and the second air guiding surface 213, and they can be planes as shown in Figure 6 , Figure 7 . In another embodiment, they can also be arc surfaces concave or convex towards the air storage cavity 21.

[0081] This embodiment does not limit the arrangement ways of the first air guiding surface 212 and the second air guiding surface 213, and any one of the following embodiments can be adopted:

[0082] Embodiment 1: As shown in Figure 6 , the first air guiding surface 212 and the second air guiding surface 213 are symmetric along the air outlet 22 and are both inclined, and gradually extend in the direction of gradually moving away from each other from top to bottom. Arranging the first air guiding surface 212 and the second air guiding surface 213 symmetrically makes the hot air guided by the first air guiding surface 212 and the second air guiding surface 213 respectively have symmetrical movement paths when moving to the air outlet 22, converge at the air outlet 22 and are ejected to the locking mechanism together.

[0083] Embodiment 2: As shown in Figure 7As shown, the first air guiding surface 212 extends in the horizontal direction, and the second air guiding surface 213 obliquely extends from one end close to the air outlet 22 to the end far from the air outlet 22 in a direction gradually away from the first air guiding surface 212. By setting the first air guiding surface 212 to extend in the horizontal direction and the second air guiding surface 213 to obliquely extend from one end close to the air outlet 22 to the end far from the air outlet 22 in a direction gradually away from the first air guiding surface 212, when the hot air moves in the air gathering section 211, it moves in the horizontal direction under the guiding action of the first guiding surface, and under the action of the second air guiding surface 213, it continuously converges and squeezes to move quickly.

[0084] As a preferred embodiment under this implementation manner, as Figure 6 、 Figure 7 shown, on one side where the first air guiding surface 212 and the second air guiding surface 213 are adjacent, there are respectively a first air guiding plate 23 and a second air guiding plate 24 that extend upward. The first air guiding plate 23 and the second air guiding plate 24 are arranged in parallel or extend gradually away from each other from top to bottom to form the air outlet 22.

[0085] The settings of the first air guiding plate 23 and the second air guiding plate 24 play a further guiding role for the hot air, enabling the hot air ejected from the air storage cavity 21 to move upward under the guiding action of the first air guiding plate 23 and the second air guiding plate 24. When the hot air leaves the air outlet 22, it can still move upward in the vertical direction under the action of inertia, thereby reducing the probability of the hot air dissipating around after leaving the air outlet 22 and ensuring the retention amount of the hot air reaching the locking mechanism. In addition, the settings of the first air guiding plate 23 and the second air guiding plate 24 also play a role in blocking the external environment for the hot air, enabling the hot air to be protected from the influence of external air pressure and air flow during the movement at the air outlet 22, thereby further ensuring the smooth arrival of the hot air at the locking mechanism for ice melting. Moreover, by setting the first air guiding plate 23 and the second air guiding plate 24 to be parallel and upward, the movement direction of the hot air at the air outlet 22 is vertically upward, enabling the hot air to still have the inertia to move in the vertical direction towards the locking mechanism after being ejected from the air outlet 22. And by setting the first air guiding plate 23 and the second air guiding plate 24 to gradually move away from each other from top to bottom, the hot air is further converged and compressed during the movement at the air outlet 22, so that the hot air ejected from the air outlet 22 has a faster speed to quickly reach the locking mechanism and reduces the loss of heat energy during the movement of the hot air from the air outlet 22 to the locking mechanism.

[0086] In this embodiment, the structural form of the air outlet 22 is not limited, and it can adopt any one of the following examples:

[0087] Example 1: As Figure 2 、 Figure 3 、 Figure 13As shown in the figure, the locking mechanism 160 has two columns, which are arranged on both sides of the battery pack along the length direction of the battery pack. There are two corresponding air outlet units 2. The two air outlet units 2 corresponding to the two columns of the locking mechanism 160 are respectively arranged along the width direction of the fuselage 1, and the air outlet 22 extends from one end to the other end of the air outlet unit 2 along the width direction of the fuselage 1.

[0088] Setting the locking mechanism 160 to two columns can achieve a more stable installation effect on the battery pack. Setting the number of the air outlet units 2 to two and arranging the air outlet 22 to extend along the length direction of the battery pack enables the hot air ejected from the air storage cavity 21 to supply air to the two locking mechanisms 160 on the side parts in the length direction of the battery pack synchronously and evenly, improving the air supply uniformity of the de-icing device to each locking mechanism 160, so as to ensure that the ice layers at each locking mechanism 160 are uniformly heated and the ice melting time is approximately equal.

[0089] The air outlet 22 in this example is applicable when the locking mechanisms 160 on the side of the battery pack are distributed densely or the locking mechanism 160 is a strip structure extending along the length direction of the battery pack, that is, the distance between each locking mechanism 160 along the length direction of the battery pack is short. By supplying air to multiple densely arranged locking mechanisms 160 through the air outlet 22 extending along the length direction of the battery pack, it helps to simplify the structural design of the air outlet 22 and reduce the manufacturing difficulty of the air outlet 22.

[0090] Example 2: There are multiple locking mechanisms, which are arranged on the battery pack at preset positions. There are multiple air outlets, and the positions of the multiple air outlets correspond to those of each locking mechanism. The arrangement of the locking mechanisms in this form is diversified and can be set according to actual needs. For example, one arrangement method of the locking mechanism is disclosed in Chinese Patent Publication No. CN106080159A. When the locking mechanism is frozen by ice and snow in winter, the de-icing device of this embodiment can be used to blow hot air to the locking mechanism to remove ice and snow. Setting the air outlet 22 to be multiple and arranged corresponding to each locking mechanism makes the de-icing accuracy of the air outlet unit 2 for the locking mechanism higher. Each air outlet 22 supplies air to the corresponding locking mechanism, improving the utilization efficiency of the hot air on the premise of ensuring uniform air supply and increasing the de-icing efficiency of the de-icing device.

[0091] The air outlet 22 in this example is applicable when the locking mechanisms on the side of the battery pack are relatively sparsely distributed, that is, the distance between each locking mechanism along the length direction of the battery pack is long. By setting the corresponding air outlet 22 to supply air for de-icing to each locking mechanism, the heat energy loss caused by ineffective air supply to the places where no locking mechanism is set is reduced.

[0092] As a preferred example in this embodiment, such as Figure 6 、 Figure 7As shown, two air diffuser plates 25 are provided at the top of the air outlet 22, and the two air diffuser plates 25 are correspondingly arranged on both sides of the air outlet 22 and gradually extend away from each other in the upward direction from bottom to top.

[0093] Due to the setting of the air diffuser plates 25, after the hot air is ejected from the air outlet 22, part of the hot air continues to move upward in the vertical direction, and part of the hot air has a tendency to move obliquely under the action of air pressure change. This part of the hot air with the tendency to move obliquely moves along the extension direction of the air diffuser plate 25 under the guiding action of the air diffuser plate 25, which not only increases the working efficiency of the hot air but also helps to reduce the requirements for the size design of the air outlet 22. That is, when the diameter of the air outlet 22 is small, the hot air can still achieve full coverage of the ice layer at the locking mechanism under the action of the air diffuser plate 25; in addition, when the ice layer above the air outlet 22 is melted, the melted water droplets will drip downward under the action of their own gravity, and the hot air at the air outlet 22 has high thermal energy, so it can instantaneously evaporate the water droplets into water vapor, and the air diffuser plate 25 can collect the ice-melted water on the side of the air outlet 22, so that the water droplets dripping on the air diffuser plate 25 move along the air diffuser plate 25 towards the air outlet 22 under the action of their own gravity and are quickly evaporated into water vapor under the action of the hot air, reducing the probability that the ice-melted water droplets fall onto the air outlet unit 2 or other components and interfere with the components of the de-icing device; therefore, by setting the air diffuser plates 25, more of the ice layer removed by the de-icing device is released in the form of water vapor, reducing the pressure on the collection and treatment of the ice-melted water.

[0094] Specifically, one end of each of the two air diffuser plates 25 is connected to the first air guide plate 23 and the second air guide plate 24 respectively, and the other end extends upward in a direction away from each other; preferably, the two air diffuser plates 25 are integrally formed with the first air guide plate 23 and the second air guide plate 24 respectively. In another preferred embodiment, the first air guide plate 23 and the second air guide plate 24 may not be provided, and the first air diffuser plate 25 and the second air diffuser plate 25 are respectively provided at the end portions of the first air guide surface 212 and the second air guide surface 213 close to each other.

[0095] Corresponding to a preferred example of the above-mentioned second embodiment, such as Figure 7As shown, the air storage chamber 21 also includes a third air guide surface 214 and a fourth air guide surface 215. The first air guide surface 212 is located above the second air guide surface 213. The end of the second air guide surface 213 away from the air outlet 22 is connected to the third air guide surface 214. The fourth air guide surface 215 is connected between the third air guide surface 214 and the second air guide surface 213. The third air guide surface 214 is arranged to extend upwardly from the second air guide surface 213 at an angle. A receiving groove 4 is formed between the second air guide plate 24, the second air guide surface 213 and the third air guide surface 214 to accommodate the ice water that falls after the air outlet unit 2 delivers hot air to the locking mechanism, and the receiving groove 4 has guide holes 5 connected to the outside of the fuselage 1 at both ends along the width direction of the fuselage 1. The fourth air guide surface 215 can be arranged to be inclined, directly connected between the second air guide surface 213 and the third air guide surface 214; or, the fourth air guide surface 215 is as follows Figure 7 As shown in FIG. 2 , it is L-shaped, with the lower end connected to the second wind guide surface 213 and the upper end connected to the third wind guide surface 214 .

[0096] On the one hand, the third air guide surface 214 and the fourth air guide surface 215 can guide the hot air before entering the air gathering section 211, so that the hot air can enter the converging section more smoothly under the guidance of the third air guide surface 214 and the fourth air guide surface 215, thereby reducing the kinetic energy loss caused by the mutual impact of the hot air due to the uneven movement direction; in addition, the water droplets and small ice cubes after the ice layer melts will fall downward, and the receiving groove 4 formed by the second air guide plate 24, the second air guide surface 213 and the third air guide surface 214 provides a receiving platform for the water droplets and ice cubes that fall to the side of the air outlet 22. The bottom of the receiving groove 4 is a high-temperature air storage chamber 21. The air storage chamber 21 continuously supplies temperature to the receiving groove 4 to quickly melt the ice cubes that fall into the receiving groove 4, and discharges the melted ice water to the outside of the fuselage 1 through the guide hole 5, thereby reducing the pressure on collecting and cleaning the ice water, and reducing the risk of the melted ice water affecting the other components of the de-icing device.

[0097] Specifically, two vertical plates 10 are respectively provided at both ends along the extending direction of the accommodating groove 4 , the second air guide plate 24 , the second air guide surface 213 and the third air guide surface 214 are all in contact with the vertical plates 10 , and the vertical plates 10 are provided with guide holes 5 .

[0098] As a preferred embodiment of the present application, Figure 8 As shown, the de-icing device also includes a transmission pipe 6 connecting the heating unit 3 with the air storage chamber 21, the transmission pipe 6 includes a pipe body 61 and a hot air transition piece 62 connecting the pipe body 61 with the air storage chamber 21, the hot air transition piece 62 has a hot air input port 621 connected to the pipe body 61 and a hot air output port 622 connected to the bottom of the air storage chamber 21, and the hot air output port 622 opens upward to be connected to the bottom surface of the air storage chamber 21.

[0099] When the heating unit 3 conveys hot air to the air storage cavity 21 through the transmission pipe 6, the hot air in the pipe body 61 will be transmitted to the air storage cavity 21 through the hot air transition piece 62. The hot air transition piece 62 plays a role in connecting the pipe body 61 and the air storage cavity 21, improving the tightness of the connection between the transmission pipe 6 and the air storage cavity 21, effectively reducing the probability of hot air escaping during the transmission from the heating unit 3 to the air storage cavity 21, thereby improving the hot air transmission rate of the heating unit 3 to the air outlet unit 2. In addition, the hot air inlet 621 is arranged on the side of the hot air transition piece 62. Optionally, the pipe body 61 can be arranged to extend in the horizontal direction and be connected to the heating unit 3 and the hot air transition piece 62 respectively, which helps to flatten the de-icing device. In addition, the hot air outlet 622 is communicated with the bottom surface of the air storage cavity 21, so that the hot air entering the air storage cavity 21 from the hot air transition piece 62 can gradually accumulate at the bottom of the air storage cavity 21 and fill the air storage cavity 21 from bottom to top and then be ejected from the air outlet 22, which helps to improve the storage stability of hot air in the air storage cavity 21.

[0100] The structure form of the hot air transition piece in this embodiment is not limited, and any one of the following embodiments can be adopted:

[0101] Embodiment 1: As Figure 8 、 Figure 9 shown, the air outlet 22 is located at the top of the air storage cavity 21, the hot air inlet 621 and the hot air outlet 622 are located on both sides of the hot air transition piece 62, and two relatively arranged air gathering plates 623 are provided on the hot air transition piece 62 near the hot air inlet 621. The two air gathering plates 623 extend from one end of the hot air inlet 621 to one end of the hot air outlet 622 and gradually approach each other. Arranging the air outlet 22 at the top of the air storage cavity 21 can shorten the distance between the air outlet 22 and the locking mechanism, reduce the movement time of the hot air reaching the locking mechanism after being ejected from the air outlet 22, and help reduce the heat energy loss of the hot air. In addition, arranging the air gathering plates 623 on the hot air transition piece 62 near the hot air inlet 621 can gather the hot air entering the hot air transition piece 62 from the hot air inlet 621. Under the action of the air gathering plates 623, the movement space of the hot air gradually shrinks, and it moves rapidly towards the hot air outlet 622 under the push of the subsequent hot air pressure. That is, the setting of the air gathering plates 623 speeds up the movement speed of the hot air in the hot air transition piece 62, which helps to improve the hot air transmission efficiency.

[0102] Embodiment 2: As Figure 8 、 Figure 9As shown, the air outlet 22 is located at the top of the air storage cavity 21. The hot air transition member 62 is provided with a wind guiding plate 624 near the hot air outlet 622. The wind guiding plate 624 is inclined such that the cross-section of the hot air transition member 62 gradually increases from the end far away from the hot air outlet 622 towards the end close to the hot air outlet 622. Since the hot air outlet 622 is located at the bottom of the air storage cavity 21, the hot air needs to experience a change in the movement direction during the movement from the hot air inlet 621 to the hot air outlet 622. Therefore, by providing the wind guiding plate 624 at the hot air outlet 622, the cross-sectional area of the hot air transition member 62 is increased, providing a larger movement space for the hot air, reducing the impact of the hot air on the inner wall of the hot air transition member 62 during the turning process, and at the same time playing a function of guiding and turning the hot air in the hot air transition member 62, improving the smoothness of the hot air discharged from the hot air outlet 622 in multiple aspects.

[0103] Specifically, the opening direction of the hot air inlet 621 is along the horizontal direction, and the opening direction of the hot air outlet 622 is upward.

[0104] In the first embodiment and the second embodiment, the structural form of the air gathering plate 623 is not limited. It can be that the two air gathering plates 623 respectively extend obliquely towards each other from the end close to the hot air inlet 621 to the end far away from the hot air inlet 621; or one of the two air gathering plates 623 extends along the horizontal direction, and the other extends obliquely towards the direction close to this air gathering plate 623 from the end close to the hot air inlet 621 to the end far away from the hot air inlet 621.

[0105] As a preferred embodiment of the present application, as Figure 2 、 Figure 5 shown, the heating unit 3 has a smoke exhaust pipe 150 for discharging waste gas. The smoke exhaust pipe 150 extends from the heating unit 3 and is communicated with the air storage cavity 21. A filter screen is provided in the smoke exhaust pipe 150 to filter the waste gas.

[0106] The setting of the smoke exhaust pipe 150 plays a function of guiding and discharging the smoke generated when the heating unit 3 manufactures hot air, avoiding the smoke from escaping everywhere and affecting the operator; in addition, since the temperature of the smoke generated when the heating unit 3 manufactures hot air is relatively high, and even its temperature is higher than the temperature of the hot air, therefore, the smoke exhaust pipe 150 is set to be communicated with the air storage cavity 21. The smoke moves towards the locking mechanism under the entrainment of the hot air in the air storage cavity 21 and has an auxiliary ice melting effect, realizing the recycling of the high-temperature smoke and increasing the ice melting efficiency of the ice removing device; and the filter screen in the smoke exhaust pipe 150 can filter and intercept solid particles, smoke oil, etc. in the smoke, avoiding this part of solid debris from polluting the locking mechanism or the battery pack.

[0107] As a preferred implementation manner of the present application, as Figure 1As shown, the de-icing device further includes an upper heat insulation member 7 provided on the upper surface of the fuselage 1. The upper heat insulation member 7 extends in the horizontal direction and has a wind-avoiding gap for avoiding the hot air ejected from the air outlet 22. The projection of the wind-avoiding gap in the vertical direction covers the air outlet 22.

[0108] The upper heat insulation member 7 can block the heat dissipated upward by the air of the air outlet unit 2, slow down the heat loss of the air outlet unit 2 upward, reduce the thermal interference of the air outlet unit 2 on the battery pack, and at the same time help maintain the heat energy content of the hot air ejected from the air outlet 22, thereby helping to improve the de-icing efficiency of the de-icing device; in addition, the upper heat insulation member 7 can also carry the ice melt water and ice cubes falling from above, preventing the ice water from falling onto the air outlet unit 2 or other components of the de-icing device, preventing the dripping ice water from causing heat energy loss to the air outlet unit 2, and at the same time, after the de-icing work is completed, the ice water falling on the upper heat insulation member 7 is also easy to be collected and processed.

[0109] Preferably, as Figure 7 shown, the upper heat insulation member 7 includes a plurality of upper heat insulation plates 71 arranged at intervals, and a wind-avoiding gap is formed between two adjacent upper heat insulation plates 71.

[0110] As another preferred embodiment of the present application, the de-icing device further includes a lower heat insulation member provided on the lower surface of the fuselage 1. The projection of the lower heat insulation member in the vertical direction at least covers the transmission pipe 6 and the air outlet unit 2. The lower heat insulation member can block the heat dissipated downward by the air of the air outlet unit 2, and slow down the heat loss of the air outlet unit 2 downward.

[0111] As a preferred embodiment of the present application, as Figure 2 、 Figure 13 shown, the locking mechanism 160 has two columns, which are arranged on both sides of the battery pack along the length direction of the battery pack. Two air outlet units 2 are correspondingly provided. The two air outlet units 2 respectively extend along the length direction of the battery pack corresponding to the two columns of the locking mechanism 160. The heating unit 3 respectively transports hot air to the two air outlet units 2 through the hot air transmission pipe 6. One of the two air outlet units 2 close to the heating unit 3 is provided with an avoidance through groove through which the hot air transmission pipe 6 passes. The setting of the two columns of the locking mechanism 160 makes the connection between the battery pack and the battery swapping vehicle more stable and reliable. The two air outlet units 2 can heat the two columns of the locking mechanism 160 at the same time, realizing synchronous de-icing of the locking mechanisms 160 on both sides of the battery pack, and improving the de-icing efficiency of the de-icing device; and the air outlet unit 2 close to the heating unit 3 is provided with an avoidance through groove through which the hot air transmission pipe 6 passes, so that when the hot air transmission pipe 6 passes through the air outlet unit 2 close to the heating unit 3, it can occupy less space at the top or bottom of the air outlet unit 2, which helps to flatten the de-icing device.

[0112] What is not described in this application can be realized by adopting or referring to the existing technology.

[0113] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other, and the key point of each embodiment is to illustrate the differences from other embodiments.

[0114] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An ice removal device for removing ice from a battery swapping vehicle. The battery pack of the battery swapping vehicle is installed at the bottom of the vehicle body through a locking mechanism to facilitate quick swapping of the battery pack. It is characterized in that The de-icing device includes a fuselage, an air outlet unit installed on the fuselage, and a heating unit that conveys hot air to the air outlet unit. The air outlet unit can move along with the fuselage to convey hot air to the locking mechanism below the locking mechanism; The air outlet unit includes an air storage cavity and an air outlet. The air storage cavity is communicated with the heating unit and accommodates the hot air provided by the heating unit. At least a part of the air storage cavity near the air outlet forms a wind gathering section, and the cross section of the wind gathering section gradually decreases from one end far from the air outlet to one end close to the air outlet.

2. The de-icing device according to claim 1, wherein The air outlet is located at the top of the air storage cavity. The air storage cavity has a first air guiding surface and a second air guiding surface arranged at intervals corresponding to the wind gathering section. The gap between the first air guiding surface and the second air guiding surface forms the air outlet. The first air guiding surface and the second air guiding surface extend in a direction gradually away from each other from one end close to the air outlet to one end far from the air outlet.

3. The de-icing device according to claim 2, wherein The first air guiding surface and the second air guiding surface are symmetric along the air outlet and are both inclined, extending in a direction gradually away from each other from top to bottom; or, the first air guiding surface extends in a horizontal direction, and the second air guiding surface extends obliquely in a direction gradually away from the first air guiding surface from one end close to the air outlet to one end far from the air outlet.

4. The de-icing device according to claim 3, wherein The first air guiding surface and the second air guiding surface respectively have a first air guiding plate and a second air guiding plate extending upward on the adjacent side. The first air guiding plate and the second air guiding plate are arranged in parallel or extend in a direction gradually away from each other from top to bottom to form the air outlet.

5. The de-icing device according to any one of claims 2-4, wherein There are two rows of the locking mechanisms, which are arranged on both sides of the battery pack along the length direction of the battery pack. Two corresponding air outlet units are provided. The two air outlet units corresponding to the two rows of the locking mechanisms respectively extend along the width direction of the fuselage. The air outlet extends from one end of the air outlet unit to the other end along the width direction of the fuselage; or, there are multiple locking mechanisms, which are arranged on the battery pack at preset positions, and there are multiple air outlets, and the positions of the multiple air outlets correspond to the positions of the respective locking mechanisms.

6. The de-icing device according to claim 5, wherein Two wind expanding plates are provided at the top of the air outlet. The two wind expanding plates are correspondingly arranged on both sides of the air outlet and extend in a direction gradually away from each other from bottom to top.

7. The de-icing device according to claim 4, wherein The air storage cavity further includes a third air guiding surface and a fourth air guiding surface. The first air guiding surface is located above the second air guiding surface. One end of the second air guiding surface away from the air outlet is connected to the third air guiding surface. The fourth air guiding surface is connected between the third air guiding surface and the second air guiding surface. The third air guiding surface extends upward and obliquely from the second air guiding surface. An accommodation groove is formed among the second air guiding plate, the second air guiding surface and the third air guiding surface to accommodate the ice water that drops after the air outlet unit conveys hot air to the locking mechanism. Both ends of the accommodation groove in the width direction of the fuselage are provided with communication through holes communicating with the outside of the fuselage.

8. The de-icing device according to claim 1, wherein The de-icing device further includes a transmission pipe connecting the heating unit and the air storage cavity. The transmission pipe includes a pipe body and a hot air transition member connecting the pipe body and the air storage cavity. The hot air transition member has a hot air input port communicating with the pipe body and a hot air output port communicating with the bottom of the air storage cavity. The hot air output port opens upward to communicate with the bottom surface of the air storage cavity.

9. The de-icing device according to claim 8, wherein The air outlet is located at the top of the air storage cavity. The hot air input port and the hot air output port are located on two sides of the hot air transition member. Two opposite wind gathering plates are provided at the hot air transition member near the hot air input port. The two wind gathering plates extend from one end of the hot air input port to one end of the hot air output port and gradually approach each other; and / or, an air guiding plate is provided at the hot air transition member near the hot air output port. The air guiding plate is obliquely arranged so that the cross section of the hot air transition member gradually increases from the end away from the hot air output port to the end close to the hot air output port.

10. The de-icing device according to claim 8, wherein The de-icing device further includes an upper heat insulation member provided on the upper surface of the fuselage. The upper heat insulation member extends in the horizontal direction and has a wind shelter gap for avoiding the hot air ejected from the air outlet. The projection of the wind shelter gap in the vertical direction covers the air outlet; and / or, the de-icing device further includes a lower heat insulation member provided on the lower surface of the fuselage. The projection of the lower heat insulation member in the vertical direction at least covers the transmission pipe and the air outlet unit.

11. The de-icing device according to claim 8, wherein There are two rows of the locking mechanisms, which are arranged on both sides of the battery pack along the length direction of the battery pack. Two corresponding air outlet units are provided. The two air outlet units corresponding to the two rows of the locking mechanisms respectively extend along the width direction of the fuselage. The heating unit is located on one side of one air outlet unit facing away from the other air outlet unit and conveys hot air to the two air outlet units through the transmission pipe respectively. One of the two air outlet units close to the heating unit is provided with an avoidance through groove for the transmission pipe to pass through.

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