Temperature control assembly of battery-replaceable new energy vehicle

Abstract

The utility model discloses a temperature control assembly of a battery-replaceable new energy vehicle, which comprises a plurality of heat exchange plates arranged above a battery unit in a lifting and sliding manner, the plurality of heat exchange plates are arranged in two rows, and a main pipeline is arranged between the two rows of heat exchange plates; the plurality of heat exchange plates, the main pipeline and a pump body fixedly mounted on a vehicle body form a loop; and a downward pressing mechanism for driving the heat exchange plates to descend is arranged above each row of heat exchange plates. According to the device, the whole heat exchange plate is divided into a plurality of independent heat exchange plates, and the position layout of the plurality of heat exchange plates is adjusted, so that the pressing mechanism can conveniently drive the plurality of heat exchange plates to press downwards at the same time and keep close fit with the battery pack, the heat exchange efficiency is enhanced, the service life is ensured, the layout is more reasonable, and the occupied space is small.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery pack temperature control equipment, and specifically relates to a temperature control component of a battery-swappable new energy vehicle. Background Art

[0002] Electric vehicles are the development direction of new energy vehicles. They use battery packs to store electrical energy as a power source to drive the car. In order to ensure a certain total power and output voltage requirements, electric vehicles need to be equipped with a certain number of battery packs, and each battery pack is connected through a copper busbar to form a battery module. In order to improve the safety of the battery pack, the battery pack is assembled in the shell to form a battery pack. The heat generated by the charging and discharging of the battery pack causes the temperature to rise. Excessive temperature will have an adverse effect on the performance and service life of the battery, and may even cause thermal runaway and endanger personal safety. Therefore, the battery pack in use must be cooled and cooled. At the same time, in areas with lower temperatures, the charging efficiency of the battery pack is lower when the temperature is lower. Therefore, the battery pack needs to be preheated in advance to ensure that it has better charging efficiency and achieves the effect of fast charging. Therefore, it is necessary to add temperature control devices to the battery bottom compartment, battery exchange cabinet and other facilities where the battery pack is placed and needs to be charged and discharged.

[0003] The temperature control components of current battery-swap electric vehicles can be roughly divided into two categories. One is to directly and relatively fixedly cover and install on the surface of the battery pack. Although this solution can ensure that the heat exchange plate and the battery pack are always closely attached, it is necessary to connect the pipes of the heat exchange plate every time the battery pack is installed on the vehicle body, which increases the battery replacement steps and reduces the battery replacement efficiency. At the same time, the instantaneous impact force generated when connecting the pipes will affect the service life of the entire heat exchange circuit;

[0004] The other type directly fixes the heat exchange plate relatively to the vehicle body, and naturally sticks to the battery pack after being inserted into the battery pack. In this state, on the one hand, the presence of the heat exchange plate will affect the plugging and unplugging operations of the battery pack during battery replacement. On the other hand, due to the processing and installation errors of the heat exchange plate and the differences in the installation angles of the battery pack, it is easy to cause the battery pack in some positions to be unable to stick closely to the heat exchange plate, which can easily cause loss and failure in some positions.

[0005] In addition, the design and layout of traditional temperature control components for heat exchange plates and their circulation pipelines are not reasonable, they occupy a lot of space, have complex pipeline routes, and have a higher failure rate.

[0006] There are technical pain points in the temperature control components of the above two methods, which require targeted improvement designs. Utility Model Content

[0007] The purpose of the utility model is to provide a power battery pack temperature control device for use to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The purpose of the utility model is to provide a temperature control component for a battery-swappable new energy vehicle, comprising a plurality of heat exchange plates that are lifted and slidably arranged above a battery unit, wherein the plurality of heat exchange plates are arranged in two rows, and a main pipe is provided between the two rows of heat exchange plates, and the plurality of heat exchange plates, the main pipe and a pump body fixedly installed on the vehicle body together form a loop;

[0010] A downward pressing mechanism for driving the heat exchange plates to descend is arranged above each row of the heat exchange plates.

[0011] Preferably, the battery unit is a whole battery pack that can be detachably fixedly mounted on the bottom of the vehicle.

[0012] Preferably, the battery units are several independent battery packs that are independently plugged in and out of a battery bottom compartment relatively fixedly installed at the bottom of the vehicle, the heat exchange plates correspond one to one with the independent battery packs, and the heat exchange plates can be raised and lowered to penetrate into the inner side of the battery bottom compartment.

[0013] Preferably, the water inlet and outlet of the heat exchange plate are respectively connected to the main pipeline through a hose.

[0014] Preferably, a plurality of guide pillars are slidably mounted on the vehicle bottom mounting frame through a guide seat, and the upper and lower ends of the guide pillars are fixedly connected to the support frame and the heat exchange plate respectively;

[0015] The sliding path of the heat exchange plate is relatively perpendicular to the upper surface of the battery pack.

[0016] Preferably, a return spring is sleeved on the outer side of the guide column, and two ends of the return spring are respectively abutted against the guide seat and the support frame.

[0017] Preferably, the pressing mechanism comprises a linear drive unit fixedly mounted on a mounting frame at the bottom of the vehicle, a driving rod driven to translate by the linear drive unit, a rod member slidingly matched with a surface of the driving rod, and a beam body fixedly connected to the rod member;

[0018] The side of the driving rod in contact with the rod is set as an inclined surface. When the rod is translated, the rod moves relative to the inclined surface and always keeps in contact with the inclined surface.

[0019] A pressure-absorbing gasket is arranged between the beam body and the support frame. When the beam body and the support frame are close to each other, the pressure-absorbing gasket is compressed and deformed.

[0020] Preferably, a connecting seat with a limiting groove in the middle is fixedly mounted on the support frame, the beam body is inserted into the limiting groove and can slide along the limiting groove, the limiting groove is consistent with the width of the beam body, and the pressure-absorbing gasket is arranged at the bottom of the guide groove.

[0021] Preferably, bolts are relatively vertically fixedly installed on the beam body, and the other ends of the bolts pass through the pressure-reducing gasket, the guide seat and the reserved holes on the support frame in sequence.

[0022] The technical effects and advantages of the utility model: the temperature control component of the battery-swappable new energy vehicle,

[0023] 1. Since several heat exchange plates are arranged in two rows along both sides of the main pipeline, the heat exchange plates are connected to the main pipeline through connecting pipes, the pipeline length is shortened, and the entanglement between the pipelines is avoided. The overall structure is more concise, the space occupancy rate is low, and it is easy to maintain and dismantle. At the same time, since the heat exchange plates are arranged in an array, it is convenient for the downward pressure drive of the downward pressure mechanism to better ensure that each independent heat exchange plate is lowered to a state of fitting with the battery pack, thereby ensuring the heat exchange efficiency;

[0024] The heat exchange plate is connected to the vehicle body and separated from the battery pack, so there is no need to connect the heat exchange plate pipeline when disassembling the battery pack. In addition, this case uses multiple small heat exchange plates, which are pressed down and fit with the battery pack to avoid the problem of poor heat exchange efficiency caused by insufficient fit between the heat exchange plate and the battery pack in some areas;

[0025] The heat exchange plate in this case can be driven to rise and fall, and during the battery replacement process of plugging and unplugging the battery pack, the pressure of the heat exchange plate on the battery pack can be released, thereby completing the operation of plugging and unplugging the battery pack conveniently and quickly.

[0026] 2. To solve the problem that when the heat exchange plate is divided into several independent small pieces and driven to fit against various areas of the battery pack, the heat exchange plates are subjected to uneven force, the fit of the heat exchange plates at some positions is quite different, and some positions are over-pressurized;

[0027] First, the structure of the pressing mechanism is designed. The inclined surface of the driving rod cooperates with the rod to drive the beam body to press down smoothly. On the one hand, it can prevent the heat exchange plate from impacting the battery pack and causing damage due to excessive downward pressure. On the other hand, the beam body is pressed down smoothly, and the output pressure is greater. The heat exchange plate is driven by the support frame to descend relatively smoothly along the guide column, which can avoid the heat exchange plate from tilting and jamming during the descent process, and completely cover the surface of the battery pack.

[0028] The beam and the support frame are set as a separate structure. When the beam is pressed down to the support frame, the pressure relief gasket is deformed to support and absorb the downward pressure of the beam, so as to prevent the support frame from outputting too much rigid pressure to the battery pack and causing hard damage. This allows the downward pressure mechanism to output greater pressure to ensure that the heat exchange plate at each position fits the battery pack, without causing excessive pressure at some positions to damage the battery pack;

[0029] The support frame structure and the position where the beam applies force to the support frame are optimized to better balance the pressure output by the downward pressure mechanism. The downward pressure of each heat exchange plate is relatively uniform, further ensuring that the heat exchange plate at each position fits tightly to the battery pack and the pressure is moderate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure when the utility model is applied to the first type of battery unit;

[0031] Figure 2 This is a schematic diagram of the structure of the utility model when it is applied to the second type of battery unit

[0032] Figure 3 for Figure 1 A partial enlarged view of the middle A;

[0033] Figure 4 It is a schematic diagram of the coordination between the beam body and the support frame;

[0034] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0035] Figure 6 It is a structural schematic diagram of the pressing mechanism;

[0036] Figure 7 for Figure 6 A partial enlarged view of point C in the middle;

[0037] Figure 8 Schematic diagram of the cooperation between the driving rod and the beam body.

[0038] In the figure: 1. mounting frame; 2. hose; 3. heat exchange plate;

[0039] 4. Pressing mechanism; 410. Linear drive unit; 420. Driving rod; 430. Rod; 440. Beam;

[0040] 5. Support frame; 6. Guide column; 7. Return spring; 8. Bolt; 9. Pressure relief gasket; 10. Main pipe;

[0041] 11. Inclined surface; 12. Connecting seat; 13. Guide seat; 14. Limiting groove. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The utility model provides Figure 1-7 The temperature control component of a battery-swap new energy vehicle shown in the figure includes a plurality of heat exchange plates 3 which are lifted and slidably arranged above the battery unit. The plurality of heat exchange plates 3 are arranged in two rows, and a main pipeline 10 is provided between the two rows of heat exchange plates 3. The plurality of heat exchange plates 3, the main pipeline 10 and a pump body fixedly installed on the vehicle body form a loop together; a downward pressing mechanism 4 for driving the downward movement is provided above each row of the heat exchange plates 3.

[0044] Since a plurality of heat exchange plates 3 are distributed in two rows along both sides of the main pipeline 10, the heat exchange plates 3 are connected to the main pipeline 10 through connecting pipes, the pipeline length is shortened, and entanglement between the pipelines is avoided. The overall structure is more concise, the space occupancy rate is low, and maintenance and repair are convenient. At the same time, since the heat exchange plates 3 are arranged in an array, the downward drive of the pressing mechanism 4 is convenient, which can better ensure that each independent heat exchange plate 3 is lowered to a state of being in contact with the battery pack, thereby ensuring the heat exchange efficiency.

[0045] like Figure 1 As shown, the battery unit is a whole battery pack that can be detachably fixed and installed on the bottom of the vehicle. For this type of battery unit, since it is a whole battery pack with a large volume, if the whole heat exchange plate 3 is directly attached to the battery pack, it is easy to have insufficient adhesion in some areas, and the heat exchange effect is reduced. Therefore, in the traditional solution, the heat exchange plate 3 is directly covered on the surface of the battery pack and relatively fixedly connected to it. Then, in this solution, the heat exchange plate 3 pipeline needs to be connected every time the battery pack is disassembled and assembled. In this case, the heat exchange plate 3 is connected to the vehicle body and separated from the battery pack, so there is no need to connect the heat exchange plate 3 pipeline when disassembling the battery pack. In addition, this case uses multiple small pieces of heat exchange plates 3, which are attached to the battery pack after being driven downward, which can avoid the problem of poor heat exchange efficiency caused by insufficient adhesion between the heat exchange plate 3 and the battery pack in some areas.

[0046] like Figure 2 As shown, the battery unit is a number of independent battery packs that are independently plugged in and out of the battery bottom compartment that is relatively fixedly installed at the bottom of the vehicle. The heat exchange plate 3 corresponds to the independent battery packs one by one, and the heat exchange plate 3 can be raised and lowered to penetrate the inner side of the battery bottom compartment. For this type of battery pack, since each battery pack needs to be independently plugged in and out during battery replacement, in the traditional solution, the heat exchange plate 3 is set at a fixed position in the battery bottom compartment, and after being inserted into the battery pack, it naturally fits with the surface of the battery pack. In the process of plugging and unplugging the battery pack, the surface of the battery pack and the heat exchange plate 3 are scratched, which is easy to cause damage on the one hand, and also affects the convenience of battery replacement on the other hand;

[0047] The heat exchange plate 3 in this case can be driven to rise and fall, and during the battery replacement process of plugging and unplugging the battery pack, the pressure of the heat exchange plate 3 on the battery pack can be released, thereby completing the operation of plugging and unplugging the battery pack conveniently and quickly.

[0048] The water inlet and outlet of the heat exchange plate 3 are connected to the main pipeline 10 through the hose 2, respectively, so as to ensure that the heat exchange plate 3 is not restricted by the connecting pipeline during the lifting and lowering movement.

[0049] A plurality of guide posts 6 are slidably mounted on the vehicle bottom mounting frame 1 through the guide seat 13. The guide posts 6 are relatively vertically fixed on the surface of the heat exchange plate 3. The upper and lower ends of the guide posts 6 are respectively fixedly connected to the support frame 5 and the heat exchange plate 3; the sliding path of the heat exchange plate 3 is relatively vertical to the upper surface of the battery pack. The movement direction of the heat exchange plate 3 after being driven is limited by the cooperation of the guide posts 6 and the guide seat 13, ensuring that the heat exchange plate 3 is always relatively parallel to the surface of the battery pack during operation, and finally completely adheres to the surface of the battery pack, further ensuring the tightness of the fit.

[0050] The guide column 6 is sleeved with a return spring 7 at its outer side, and the two ends of the return spring 7 are respectively against the guide seat 13 and the support frame 5. By setting the return spring 7, when the pressing mechanism 4 contacts the downward force, the heat exchange plate 3 can be actively pushed away from the battery pack, making it more convenient and safe to carry out the battery replacement work.

[0051] The pressing mechanism 4 includes a linear drive unit 410 fixedly mounted on the vehicle bottom mounting frame 1, a driving rod 420 driven to translate by the linear drive unit 410, a rod 430 relatively slidingly matched with the surface of the driving rod 420, and a beam body 440 relatively fixedly connected to the rod 430; the side of the driving rod 420 in contact with the rod 430 is set as an inclined surface 11, when the rod 430 translates, the rod 430 moves relative to the inclined surface 11 and always keeps in contact with the inclined surface 11; when the linear drive mechanism pushes the driving rod 420 to translate above the battery compartment, the rod 430 slides along the inclined surface 11, because the driving rod 420 is horizontally placed above the battery compartment, there is a height difference in the longitudinal direction, the rod 430 slides from the high point of the inclined surface 11 to the low point of the inclined surface 11, at this time the rod 430 is displaced in the longitudinal direction and descends, thereby driving the beam body 440 to synchronously descend to press the support frame 5 below. The pressure output of this pressing mechanism is more linear and gentle, which can avoid the beam body 440 being driven downward instantly, causing the support frame 5 to drive the heat exchange plate 3 to impact the surface of the battery pack. Compared with directly using a linear mechanism to push the support frame 5 and the heat exchange plate 3 downward, the downward driving force is more stable, and the heat exchange plate 3 is relatively smooth during the process of descending along the guide column 6, which can avoid jamming and tilting. This allows each heat exchange plate 3 to accurately descend to the position close to the battery pack and fit tightly with the surface of the battery pack.

[0052] A pressure-absorbing gasket 9 is provided between the beam body 440 and the support frame 5. When the beam body 440 and the support frame 5 are close to each other, the pressure-absorbing gasket 9 is deformed by pressure. Since the beam body 440 and the support frame 5 are separated structures, compared with the structure in which the beam body 440 and the support frame 5 are relatively fixedly connected in the traditional structure, and the support frame 5 is directly driven to descend by the beam body 440, in the solution provided by this embodiment, when the beam body 440 is pressed down to the support frame 5, the support frame 5 is pushed down together with the heat exchange plate 3 below, and the pressure-absorbing gasket 9 absorbs and supports the downward pressure of the beam body 440, so as to prevent the support frame 5 from outputting excessive rigid pressure to the battery pack and causing hard damage. This allows the downward pressing mechanism to output a greater pressure to ensure that the heat exchange plate 3 at each position fits the battery pack without causing excessive pressure on some positions of the battery pack.

[0053] The support frame 5 is fixedly mounted with a connecting seat 12 having a limiting groove 14 in the middle, and the beam body 440 is inserted into the limiting groove 14 and can slide along the limiting groove 14. The limiting groove 14 is consistent with the width of the beam body 440, and the pressure relief gasket 9 is arranged at the bottom of the guide groove. The beam body 440 is relatively vertically fixedly mounted with a bolt 8, and the other end of the bolt 8 passes through the pressure relief gasket 9, the guide seat 13 and the reserved holes on the support frame 5 in turn. The movement path of the beam body 440 is limited by the limiting groove 14 and the bolt 8, ensuring that in the process of driving the beam body 440 to move, vertical pressure can be applied to the support frame 5, thereby ensuring that the support frame 5 can output sufficient pressure to the thermal plate to press the battery pack.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A temperature control assembly for a battery-swappable new energy vehicle, comprising a vehicle bottom mounting frame (1) and a plurality of heat exchange plates (3) which are lifted and slidably disposed above a battery unit, characterized in that: The plurality of heat exchange plates (3) are arranged in two rows, and a main pipe (10) is provided between the two rows of heat exchange plates (3). The plurality of heat exchange plates (3), the main pipe (10) and a pump body fixedly mounted on the vehicle body together form a loop; A downward pressing mechanism (4) for driving the heat exchange plates (3) is provided above each row.

2. The temperature control component of a battery-swappable new energy vehicle according to claim 1, characterized in that: The battery unit is a whole battery pack that is detachably fixedly mounted on the bottom of the vehicle.

3. The temperature control component of a battery-swappable new energy vehicle according to claim 1, characterized in that: The battery units are a plurality of independent battery packs that are independently plugged in and out of a battery bottom compartment that is relatively fixedly installed at the bottom of the vehicle. The heat exchange plates (3) correspond to the independent battery packs one by one, and the heat exchange plates (3) can be lifted and lowered to penetrate into the inner side of the battery bottom compartment.

4. The temperature control component of a battery-swappable new energy vehicle according to claim 1, characterized in that: The water inlet and outlet of the heat exchange plate (3) are respectively connected to the main pipeline (10) through a hose (2).

5. The temperature control component of a battery-swappable new energy vehicle according to claim 1, characterized in that: A plurality of guide pillars (6) are slidably mounted on the vehicle bottom mounting frame (1) via a guide seat (13), and the upper and lower ends of the guide pillars (6) are fixedly connected to the support frame (5) and the heat exchange plate (3) respectively; The sliding path of the heat exchange plate (3) is relatively perpendicular to the upper surface of the battery pack.

6. The temperature control component of a battery-swappable new energy vehicle according to claim 5, characterized in that: A return spring (7) is sleeved on the outer side of the guide column (6), and two ends of the return spring (7) are respectively abutted against the guide seat (13) and the support frame (5).

7. The temperature control component of a battery-swappable new energy vehicle according to claim 6, characterized in that: The pressing mechanism (4) comprises a linear drive unit (410) fixedly mounted on a vehicle bottom mounting frame (1), a driving rod (420) driven to translate by the linear drive unit (410), a rod (430) slidably matched with the surface of the driving rod (420), and a beam body (440) fixedly connected with the rod (430); The side surface of the driving rod (420) in contact with the rod member (430) is arranged as an inclined surface (11); when the rod member (430) moves in translation, the rod member (430) and the inclined surface (11) move relative to each other and always remain in contact with the inclined surface (11); A pressure-absorbing gasket (9) is provided between the beam body (440) and the support frame (5); when the beam body (440) and the support frame (5) are close to each other, the pressure-absorbing gasket (9) is deformed under pressure.

8. The temperature control component of a battery-swappable new energy vehicle according to claim 7, characterized in that: A connecting seat (12) having a limiting groove (14) in the middle is fixedly mounted on the support frame (5); the beam body (440) is inserted into the limiting groove (14) and can slide along the limiting groove (14); the limiting groove (14) is consistent in width with the beam body (440); and the pressure-absorbing gasket (9) is arranged at the bottom of the guide groove.

9. The temperature control component of a battery-swappable new energy vehicle according to claim 8, characterized in that: A bolt (8) is relatively vertically fixedly installed on the beam body (440), and the other end of the bolt (8) passes through the pressure-reducing gasket (9), the guide seat (13) and the reserved holes on the support frame (5) in sequence.

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