Refrigerant control system and vehicle

Abstract

The utility model provides a refrigerant control system and a vehicle. The refrigerant control system comprises a refrigerant pipeline connected with a compressor, a condenser, a throttling valve and an evaporator and a safety valve, the safety valve comprises a valve body, the valve body is provided with an access pipeline and a pressure relief opening, the access pipeline is communicated with the refrigerant pipeline, the side wall of the access pipeline comprises a sealing plate, and the sealing plate is used for sealing a passage between the access pipeline and the pressure relief opening; and the safety control assembly is located in the valve body and comprises an impact part and a control assembly, the impact part is located on the side, facing the pressure relief opening, of the sealing plate, and the control assembly is connected with the impact part and used for controlling the impact part to pierce the sealing plate so that the access pipeline can communicate with the pressure relief opening. According to the refrigerant control system, the control assembly in the safety control assembly can be used for controlling the impact part to pierce the sealing plate in a high-temperature scene, so that a passage between the refrigerant pipeline and the pressure relief opening is opened, the refrigerant is discharged through the pressure relief opening, and the danger of explosion is avoided.

Description

Technical Field

[0001] The present application relates to the field of automotive technology, and in particular to a refrigerant control system and a vehicle. Background Art

[0002] With the development of vehicle technology, new energy vehicles are increasingly being used. However, these vehicles place higher demands on refrigerant control systems, including higher energy efficiency, lower environmental impact, a wider operating temperature range, and more economical costs. However, existing refrigerants (such as R134a, R1234yf, R744, and R410A) cannot meet these requirements.

[0003] To adapt to the development of new energy vehicles, new refrigerants (such as R290) are being proposed as the next generation of refrigerants. However, these new refrigerants are flammable and explosive, which poses a threat to vehicle safety. Therefore, how to incorporate these refrigerants into refrigerant management systems while ensuring vehicle safety has become a pressing issue. Utility Model Content

[0004] The present application provides a bracket assembly for an engine hood buffer block and a vehicle. Various aspects involved in the embodiments of the present application are introduced below.

[0005] In a first aspect, a refrigerant control system is provided, which includes a compressor, a condenser, a throttle valve, an evaporator and a refrigerant pipeline, wherein the refrigerant pipeline connects the compressor, the condenser, the throttle valve and the evaporator, and the refrigerant control system also includes a safety valve, which includes: a valve body, on which an access pipeline and a pressure relief port are provided, the access pipeline is connected to the refrigerant pipeline, and the side wall of the access pipeline includes a sealing plate, and the sealing plate is used to seal the passage between the access pipeline and the pressure relief port; a safety and control component, which is located in the valve body, and the safety and control component includes an impact piece and a control component, the impact piece is located on the side of the sealing plate facing the pressure relief port, the control component is connected to the impact piece and the control component is used to control the impact piece to pierce the sealing plate so that the access pipeline and the pressure relief port are connected.

[0006] In some possible implementations, the control component includes a locking member and a locking control component, wherein the locking control component is connected to the locking member; the locking member is used to press against the impact member at the locking position to keep the impact member in a stationary state; the locking control component is used to control the locking member to move away from the impact member from the locking position to control the impact member to pierce the sealing plate.

[0007] In some possible implementations, the control assembly further includes a power-assisting member connected to the impact member, and the power-assisting member is configured to provide an impact force to the impact member when the control assembly controls the impact member to pierce the sealing plate.

[0008] In some possible implementations, the locking control assembly includes a driving member, which is connected to the locking member. The driving member drives the locking member away from the impact member from the locking position based on a control signal from a control panel. The control signal is sent by the control panel to the driving member in response to a received prompt signal. The prompt signal is used to indicate that a vehicle using a refrigerant control system has a fire risk.

[0009] In some possible implementations, the locking assembly includes a thermal expansion unit, which is connected to the locking member. The thermal expansion unit is used to expand when the temperature of the refrigerant control system exceeds the target temperature to drive the locking member away from the impact member from the locking position.

[0010] In some possible implementations, the assisting member includes a spring. When the impact member connected to the spring is pressed against by the locking member, the impact member presses against the spring to put the spring into a force storage state.

[0011] In some possible implementations, the driving member includes a motor and a lead screw.

[0012] In some possible implementations, the access pipeline is connected to the first refrigerant pipeline between the compressor and the condenser.

[0013] In some possible implementations, the end of the impact member facing the sealing plate is a pointed structure.

[0014] In a second aspect, a vehicle includes: a refrigerant control system as described in the first aspect.

[0015] The refrigerant control system provided in an embodiment of the present application includes a safety valve disposed on a refrigerant pipeline. The safety valve includes a valve body and a safety and control assembly. The valve body is provided with a pressure relief port and a sealing plate that seals the passage between the refrigerant pipeline and the pressure relief port. The safety and control assembly includes an impact member and a control assembly. The control assembly can control the impact member to pierce the sealing plate. With this arrangement, in high-temperature environments, the control assembly in the safety and control assembly can be used to control the impact member to pierce the sealing plate, thereby opening the passage between the refrigerant pipeline and the pressure relief port, allowing the refrigerant to be discharged through the pressure relief port, thereby avoiding the risk of explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments.

[0017] It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be considered limiting of the scope.

[0018] It should also be understood that the same or similar reference numerals are used in the drawings to identify the same or similar elements.

[0019] It should also be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0020] Figure 1 A schematic structural diagram of a refrigerant control system provided in an embodiment of the present application.

[0021] Figure 2 for Figure 1 Schematic diagram of the safety valve structure.

[0022] Figure numerals: refrigerant control system 10, compressor 20, condenser 30, throttle valve 40, evaporator 50, refrigerant pipeline 60, first refrigerant pipeline 610, second refrigerant pipeline 620, third refrigerant pipeline 630, fourth refrigerant pipeline 640, water system 80, safety valve 70, valve body 710, pressure relief port 711, access pipeline 712, refrigerant pipe interface 713, 714, side wall 715 of access pipeline, sealing plate 716, first surface 717, second surface 718, safety control component 720, impact member 721, control component 722, impact end 723, locking member 724, locking control component 725, power assist member 726, drive member 727, motor 728, screw 729, thermal expansion unit 730, slot 731. DETAILED DESCRIPTION

[0023] The following is an exemplary description of the embodiments of the present application in conjunction with the accompanying drawings. It should be understood that there are many ways to implement the present application and it should not be construed as being limited to the embodiments described here. The embodiments described here are only for a more thorough and clear understanding of the present application.

[0024] Vehicles typically use a refrigerant control system (or thermal management system) for cooling or heating. Current vehicle refrigerant control systems typically use tetrafluoroethane (R134a), 2,3,3,3-tetrafluoropropylene (R1234yf), carbon dioxide (R744), and a difluoromethane / pentafluoroethane mixture (R410A). However, these refrigerants are either unsuitable for heating or cooling. Specifically: R134a and R1234yf are suitable for cooling, but lack sufficient performance for heating; R744 offers good heating performance, but has low energy efficiency for cooling, and due to the high system pressure, results in higher system costs; R410A offers good cooling capacity, but is less effective at high temperatures.

[0025] With the development of vehicle technology, new energy vehicles are becoming increasingly popular. However, these vehicles place higher demands on refrigerant control systems, including higher energy efficiency, lower environmental impact, a wider operating temperature range, and more economical costs. However, the refrigerants described above in the prior art fail to meet these requirements.

[0026] To adapt to the development of new energy vehicles (especially electric vehicles), one possible approach is to adopt new refrigerants as the next generation of refrigerants. One example of a new refrigerant is propane (R290). R290 is a simple hydrocarbon without any additives or other ingredients. Its chemical formula is C3H8. This new refrigerant has excellent cooling and heating capabilities. Applying this new refrigerant to the refrigerant control systems of new energy vehicles can help improve overall performance and sustainability.

[0027] However, new refrigerants, such as R290, are flammable and explosive, which poses a threat to vehicle safety. Therefore, how to incorporate these refrigerants into refrigerant management systems while ensuring vehicle safety has become a pressing issue.

[0028] In view of this, an embodiment of the present application provides a refrigerant control system, in which a safety valve is provided on the refrigerant pipeline connecting the compressor, condenser, and evaporator. The safety valve includes a valve body and a safety and control assembly. The valve body is provided with a pressure relief port and a sealing plate that seals the passage between the refrigerant pipeline and the pressure relief port. The safety and control assembly includes an impact member and a control assembly. The control assembly can control the impact member to pierce the sealing plate. With this arrangement, in high-temperature scenarios, the control assembly in the safety and control assembly can be used to control the impact member to pierce the sealing plate, thereby opening the passage between the refrigerant pipeline and the pressure relief port, allowing the refrigerant to be discharged through the pressure relief port, thereby avoiding the risk of explosion.

[0029] The following combination Figure 1-Figure 2 , the refrigerant control system 10 in the embodiment of the present application is described in detail.

[0030] like Figure 1 As shown, the refrigerant control system 10 may include a compressor 20 , a condenser 30 , a throttle valve 40 , an evaporator 50 , a refrigerant pipeline 60 and a safety valve 70 .

[0031] The compressor 20 is a core component of the refrigerant control system 10. It is used to take in low-pressure, low-temperature gaseous refrigerant and compress it into high-pressure, high-temperature gas. This process increases the pressure and temperature of the refrigerant, which means that the refrigerant output by the compressor 20 is high-pressure, high-temperature refrigerant.

[0032] The condenser 30 can be understood as a heat exchanger. The condenser 30 is connected to the output of the compressor 20 and cools and condenses the high-pressure and high-temperature gaseous refrigerant into a high-pressure liquid refrigerant. In this process, the refrigerant releases heat, for example, where the heat is transferred to the surrounding environment or Figure 1 In the waterway system 80 shown.

[0033] The throttle valve 40, which can also be called an expansion valve, is connected to the condenser 30 and the evaporator 50 at both ends. The throttle valve 40 is used to reduce the pressure and temperature of the high-pressure liquid refrigerant, turning it into a low-pressure, low-temperature liquid and gas mixture. This process prepares the refrigerant for subsequent entry into the evaporator 50.

[0034] The evaporator 50 can be understood as a heat exchanger, which is used to absorb the surrounding environment or Figure 1 The heat in the water system 80 causes the low-pressure, low-temperature refrigerant to further evaporate into a low-pressure, low-temperature gaseous refrigerant, which also lowers the temperature of the surrounding environment.

[0035] The refrigerant pipeline 60 is used to connect the compressor 20, the condenser 30, the throttle valve 40, and the evaporator 50 to form a closed circulation system. The refrigerant flows in the closed passage formed by the refrigerant pipeline 60, completing the entire refrigeration cycle. Specifically, the refrigerant pipeline 60 includes a first refrigerant pipeline 610 located between the compressor 20 and the condenser 30, a second refrigerant pipeline 620 located between the condenser 30 and the throttle valve 40, a third refrigerant pipeline 630 located between the throttle valve 40 and the evaporator 50, and a fourth refrigerant pipeline 640 located between the evaporator and the compressor 20. As can be seen from the foregoing, the first refrigerant pipeline 610 is used to transmit high-temperature and high-pressure fluids, the second refrigerant pipeline 620 is used to transmit low-temperature and high-pressure fluids, and the third refrigerant pipeline 630 and the fourth refrigerant pipeline 640 are used to transmit low-temperature and low-pressure fluids.

[0036] The safety valve 70 is connected to the refrigerant pipeline 60. A pressure relief port 711 is provided on the safety valve 70. The pressure relief port 711 is used to discharge the refrigerant in the refrigerant pipeline 60 through the pressure relief port 711 in high temperature scenes or scenes where explosion may occur.

[0037] See Figure 2 The safety valve 70 includes a valve body 710 and a safety control component 720.

[0038] The valve body 710 (or shell) is provided with an access pipeline 712 and a pressure relief port 711. Refrigerant pipe interfaces 713, 714 are formed at both ends of the access pipeline 712, and the safety valve 70 can be connected to the refrigerant pipeline 60 through the two refrigerant pipe interfaces 713, 714. In other words, the access pipeline 712 is connected to the refrigerant pipeline 60, and the fluid passage in the access pipeline 712 is the refrigerant passage. The pressure relief port 711 and the access pipeline 712 are located at different positions of the valve body 710. The side wall 715 of the access pipeline 712 includes a sealing plate 716, which is used to seal the passage between the access pipeline 712 and the pressure relief port 711. In other words, the sealing plate 716 prevents the access pipeline 712 and the pressure relief port 711 from being connected, and the sealing plate 716 is used to seal the refrigerant passage.

[0039] In the embodiment of the present application, the sidewall 715 of the access pipe 712 includes a sealing plate 716, which can be understood as the sealing plate 716 forming a portion of the access pipe's sidewall 715. In one implementation, the access pipe 712 can be a one-piece access pipe 712, with the sealing plate 716 being a portion of the one-piece access pipe 712's sidewall 715. In another implementation, the access pipe 712 can be a split access pipe 712, which can include a pipe having an opening and a seal welded to the opening, namely the sealing plate 716.

[0040] The embodiment of the present application does not impose any specific limitation on the shape of the sealing plate 716, as long as the shape of the sealing plate 716 matches the access pipe 712 and can block the fluid in the access pipe 712 from flowing toward the pressure relief port 711. For example, the sealing plate 716 can be planar, or can be curved, or can be annular.

[0041] The safety and control component 720 is located in the inner cavity of the valve body 710 and includes an impact member 721 and a control component 722 .

[0042] Impact member 721 is located on the side of sealing plate 716 facing pressure relief port 711, that is, on the side facing away from access pipe 712, and can be positioned directly opposite sealing plate 716. Under normal operating conditions, impact member 721 is in a stationary or locked state. Under special operating conditions, locking member 724 is movable or unlocked.

[0043] The embodiment of the present application does not specifically limit the distance between the impact member 721 and the sealing plate 716 under normal working conditions. As an implementation method, Figure 2As shown, one end of the impact member 721 facing the sealing plate 716 (referred to as the impact end 723 for short) may be in contact with the first surface 717 of the sealing plate 716 away from the refrigerant passage, but the impact member 721 does not cross the first surface 717, that is, the impact member 721 is not embedded in the sealing plate 716 or penetrates the sealing plate 716. As another implementation, a distance may be provided between the impact end 723 of the impact member 721 and the first surface 717 of the sealing plate 716, that is, the impact end 723 of the impact member 721 and the first surface 717 of the sealing plate 716 have a distance, and the distance may be a distance greater than 0. It should be understood that the normal operating conditions mentioned in the embodiments of the present application may be understood as the vehicle using the refrigerant control system 10 having no abnormal conditions, for example, the vehicle has not collided, the battery status of the vehicle is stable, and the vehicle has not caught fire.

[0044] The control assembly 722 is connected to the impact member 721 and is used to actively or passively control the impact member 721 to pierce the sealing plate 716 under special working conditions, thereby connecting the access line 712 and the pressure relief port 711. The control assembly 722 controlling the impact member 721 to pierce the sealing plate 716 may mean that the control assembly 722 controls the impact end 723 of the impact member 721 to move from the first surface 717 or a position away from the first surface 717 to a position at least above the second surface 718.

[0045] The present embodiment does not specifically limit the structure of the impact member 721, as long as the impact member 721 can pierce the sealing plate 716 under the control of the control component 722. For example, the impact member 721 can be a slender part. Preferably, the impact end 723 of the impact member 721 is as follows: Figure 2 For example, the impact member 721 may also be referred to as a thimble. By configuring the impact end 723 of the impact member 721 as a sharp-angled structure, the impact force of the impact member 721 is more concentrated and the penetration capability is higher when piercing the sealing plate 716, while the reaction force received is smaller.

[0046] It should be understood that the special operating conditions mentioned in the embodiments of this application can be understood as operating conditions different from normal operating conditions, and under special operating conditions, the vehicle using the refrigerant control system 10 may experience or has experienced an abnormality. For example, a special operating condition may be a vehicle collision, an unstable battery state (such as thermal runaway of the battery), or a vehicle fire.

[0047] The embodiment of the present application provides a safety valve 70 on the refrigerant pipeline 60 of the refrigerant control system 10. In the event of high temperature or fire warning, the safety valve 70 can control the impact member 721 in the safety control component 720 through the control component 722 in the safety control component 720 in the safety valve 70 to pierce the sealing plate 716 that seals the refrigerant passage, thereby opening the passage between the refrigerant pipeline 60 and the pressure relief port 711, so as to discharge the refrigerant through the pressure relief port 711 and avoid the risk of explosion.

[0048] The embodiment of the present application does not impose any specific limitation on the structure of the control component 722, as long as the control component 722 can actively or passively control the impact member 721 to pierce the sealing plate 716 in the scenario of high temperature or fire warning.

[0049] As a way to implement Figure 2 As shown, the control assembly 722 may include a locking member 724 and a locking control assembly 725. The locking member 724 is used to lock or unlock the movement of the impact member 721. Specifically, the position of the locking member 724 can be used to lock or unlock the movement of the impact member 721. The locking control assembly 725 is connected to the locking member 724 and is used to actively or passively control the position of the locking member 724.

[0050] For example, under normal working conditions, the locking member 724 can be located in the locking position to lock the position of the impact member 721. In some embodiments, the locking control assembly 725 controls the locking member 724 to move to the locking position based on normal working conditions. For another example, the locking control assembly 725 is used to actively or passively control the locking member 724 to move away from the impact member 721 from the locking position based on special working conditions, so as to unlock the static state of the impact member 721 and then control the impact member 721 to pierce the sealing plate 716. Figure 2 As shown, the locking position can be, for example, a slot 731 provided on the impact member 721, and when the locking member 724 is embedded in the slot 731, it is in the locking position, and when the locking member 724 is disengaged from the slot 731, the static state of the impact member 721 is unlocked.

[0051] The embodiment of the present application ensures the working stability of the refrigerant control system 10 under normal working conditions by setting the control component 722 to include a locking member 724 and a locking component, and can indirectly control the impact member 721 to pierce the sealing plate 716 based on the active or passive control of the locking member 724 by the locking component under special working conditions, so as to ensure that in the scenario of high temperature or fire warning, the control component 722 in the safety control component 720 in the safety valve 70 actively or passively controls the impact member 721 in the safety control component 720 to pierce the sealing plate 716 that seals the refrigerant passage, thereby opening the passage between the refrigerant pipeline 60 and the pressure relief port 711, so as to discharge the refrigerant through the pressure relief port 711, thereby avoiding the risk of explosion.

[0052] As an example, as mentioned above, under normal working conditions, the impact member 721 is in a locked state, and the impact end 723 of the impact member 721 can be at a distance from the first surface 717 of the sealing plate 716. The locking control assembly 725 is used to control the locking member 724 to move away from the locking position to the impact member 721 under special working conditions, so as to control the impact member 721 to switch from a static state to a movable state. At this time, based on the gravity of the impact member 721, the impact member 721 can be controlled to pierce the sealing plate 716.

[0053] As another example, Figure 2 As shown, the control assembly 722 further includes a booster 726, which is connected to the impact member 721 and can be used to provide an impact force to the impact member 721 to ensure that the impact member 721 can pierce the sealing plate 716. Under normal working conditions, the impact member 721 is in a locked state, and the impact end 723 of the impact member 721 can contact the first surface 717 of the sealing plate 716. The locking control assembly 725 is used to control the locking member 724 to move away from the impact member 721 from the locked position (i.e., control the locking member 724 to move from the illustrated position toward the x direction in the figure) under special working conditions to control the impact member 721 to switch from a stationary state to a movable state. At this time, the booster 726 can provide an impact force to the impact member 721 to control the impact member 721 to pierce the sealing plate 716.

[0054] In the embodiment of the present application, by setting the control component 722 to include a locking member 724, a locking member and a booster 726, the working stability of the refrigerant control system 10 under normal working conditions can be ensured, and in special working conditions, the impact member 721 can be directly controlled to pierce the sealing plate 716 based on the control of the locking member 724 by the locking member and the impact force provided by the booster 726, so as to ensure that in the scenario of high temperature or early warning of fire, the control component 722 in the safety control component 720 in the safety valve 70 actively or passively controls the impact member 721 in the safety control component 720 to pierce the sealing plate 716 that seals the refrigerant passage, thereby opening the passage between the refrigerant pipeline 60 and the pressure relief port 711, so as to discharge the refrigerant through the pressure relief port 711, thereby avoiding the risk of explosion. In addition, the provision of the booster 726 can ensure that the impact force when the control component 722 controls the impact member 721 to pierce the sealing plate 716 is sufficient, thereby avoiding the risk of explosion caused by piercing failure.

[0055] The present embodiment does not specifically limit the structure of the assisting member 726, as long as the assisting member 726 can provide the impact member 721 with an impact force sufficient to pierce the sealing plate 716. As an implementation method, the assisting member 726 can be a cylinder, a hydraulic cylinder, or a motor 728 or a spring that can provide a rebound force. Figure 2As shown, the assisting member 726 is a spring capable of providing rebound force, and the spring is in a force-storing state (i.e., compressed state) when the locking member 724 is in the locking position (i.e., under normal working conditions). In other words, when the impact member connected to the spring is pressed against the locking member, the impact member presses against the spring, so that the spring is in a force-storing state. When the control component 722 controls the locking member 724 to release the locking of the impact member 721 (i.e., under special working conditions), since the impact member 721 is in a movable state (i.e., there is no other resistance on the impact member 721), the spring in the force-storing state at this time is no longer under force and can therefore return to its original shape (i.e., a state that is neither compressed nor stretched) based on its own elastic ability. The process of the spring in the force-storing state recovering its deformation can provide impact force to the impact member 721 connected thereto.

[0056] By setting the assisting member 726 as a force-storing spring, the overall cost of the control component 722 can be reduced and the structure can be simple and easy to implement. Compared with setting the assisting member 726 as a main control such as a cylinder, the transmission of control signals is avoided, and the timeliness of piercing the sealing plate 716 is ensured.

[0057] The embodiment of the present application does not impose any specific limitation on the structure of the locking assembly 725 , as long as the locking assembly 725 can actively or passively control the locking state of the locking member 724 on the impact member 721 to control the impact member 721 to pierce the sealing plate 716 .

[0058] As an implementation, the lock control assembly 725 includes a driver 727, which is connected to the locking member 724 and can operate based on a control signal to control the locking member 724 to move away from the impact member 721 from the locked position, thereby controlling the impact member 721 to pierce the sealing plate 716. The control signal can be, for example, sent to the driver 727 by a control board in the refrigerant control system 10 or a control board of a vehicle using the refrigerant control system 10 in response to a received prompt signal. The prompt signal can be detected by a detection system of a vehicle using the refrigerant control system 10, and the prompt signal is used to indicate that the vehicle using the refrigerant control system 10 has a fire risk. For example, when the vehicle's detection system detects a danger, such as a vehicle collision or thermal runaway of the vehicle's battery, there may be a fire risk. That is to say, when the vehicle's detection system detects that the vehicle may have a fire risk, it will send the signal to the control panel. In response to receiving the signal, the control panel sends a control signal to the driving member 727 to start the driving member 727 to drive the locking member 724 from the locking position away from the impact member 721 to control the impact member 721 to pierce the sealing plate 716.

[0059] The present embodiment does not specifically limit the driving member 727. For example, the driving member 727 may include a motor 728 and a screw 729. The motor 728 is connected to the locking member 724 via the screw 729. In response to receiving a control signal, the motor 728 may begin to rotate, thereby driving the locking member 724 away from the locked position, thereby allowing the impact member 721 to pierce the sealing plate 716 under the control of the assisting member 726 or gravity. This structure can realize the active removal of refrigerant according to the control signal, ensuring the timely release of refrigerant.

[0060] By setting the locking control component 725 as the driving member 727, the embodiment of the present application can actively control the impact member 721 to pierce the sealing plate 716 in a timely manner according to the real-time detection signal of the vehicle using the refrigerant control system 10 to release the refrigerant, thereby releasing the refrigerant before the danger of fire, avoiding the risk of explosion.

[0061] As another implementation, the locking assembly 725 includes a thermal expansion unit 730. The thermal expansion unit 730 is a structure that uses the thermal expansion characteristics of a material to achieve dimensional changes. The thermal expansion unit 730 can be, for example, a thermal expansion bag filled with a temperature-sensitive substance. When the temperature rises, the internal substance expands, thereby generating mechanical force. The thermal expansion unit 730 is connected to the locking member 724. The thermal expansion unit 730 is used to expand when the temperature of the refrigerant control system 10 exceeds the target temperature to drive the locking member 724 away from the locking position and away from the impact member 721.

[0062] The embodiment of the present application sets the locking control component 725 as the thermal expansion unit 730, and can control the impact member 721 to pierce the sealing plate 716 according to the real-time temperature of the refrigerant control system 10 to release the refrigerant, thereby releasing the refrigerant in time and avoiding the risk of explosion.

[0063] It should be noted that, in some embodiments, Figure 2 As shown, the lock control assembly 725 can include both the aforementioned drive member 727 and the thermal expansion unit 730. Through this configuration, the drive member 727 can proactively control the impact member 721 to pierce the sealing plate 716 in a timely manner to release the refrigerant based on a real-time detection signal from a vehicle using the refrigerant control system 10. If the drive member 727 does not proactively control the impact member 721, the thermal expansion unit 730 can also passively control the impact member 721 to pierce the sealing plate 716 to release the refrigerant when the temperature of the refrigerant control system 10 exceeds a target temperature.

[0064] This arrangement provides dual insurance for both active and passive refrigerant release, thereby advantageously ensuring the safety of vehicles using the refrigerant control system 10, avoiding the risk of explosion, and promoting the use of new refrigerants such as R290. As previously mentioned, the access line 712 of the safety valve 70 in the embodiment of the present application is connected to the refrigerant line 60, and the refrigerant line 60 is used to connect multiple devices such as the compressor 20, the condenser 30, the throttle valve 40, and the evaporator 50.

[0065] The embodiment of the present application does not specifically limit the connection position of the safety valve 70 on the refrigerant pipeline 60. As an implementation method, Figure 1 As shown, the access line 712 of the safety valve 70 can be connected to the first refrigerant line 610 between the compressor 20 and the condenser 30 , that is, the access line 712 of the safety valve 70 and the first refrigerant line 610 between the compressor 20 and the condenser 30 .

[0066] Connecting the safety valve 70 between the compressor 20 and the condenser 30 is equivalent to connecting the safety valve 70 to the first refrigerant pipeline 610. In other words, it is equivalent to connecting the safety valve 70 to the position in the refrigerant pipeline 60 where explosion is most likely to occur. By setting the safety valve 70 at this position, the refrigerant can be discharged in time, effectively avoiding the occurrence of explosion.

[0067] In order to facilitate understanding of the working process of the safety valve 70 of the embodiment of the present application, the following Figure 2 The safety valve 70 in FIG. 1 describes its working process in detail. It should be understood that Figure 2 This is only an example of the refrigerant control system 10 provided in the embodiment of the present application and does not limit the structure of the refrigerant control system 10. Figure 2 In the embodiment, the control assembly 722 of the safety valve 70 includes a locking member 724, a power member 726, a driving member 727 and a thermal expansion unit 730. The power member 726 is a spring, the driving member 727 is a motor 728 and a lead screw 729, and the thermal expansion unit 730 is a thermal expansion bag.

[0068] like Figure 2 As shown, the safety valve 70 is connected to the refrigerant pipeline 60 through the refrigerant pipe interfaces 713 and 714 of the access pipeline 712. Under normal working conditions (i.e. Figure 2Under certain working conditions), the spring is in a state of storing force, and the magnitude of its elastic force is sufficient to enable the impact member 721 to break through the sealing plate 716 under special working conditions. Under normal working conditions, the locking member 724 is embedded in the slot of the impact member 721, so that the impact member 721 cannot move in the y direction to pierce the sealing plate 716. Under special working conditions, for example, when the vehicle receives a prompt signal (such as a collision signal or a battery thermal runaway signal, etc.), the control panel will respond to the prompt signal and send a control signal to the motor 728 to control the rotation of the motor 728 to drive the screw 729 to move in the x direction. The screw 729 pushes the locking member 724 in the x direction to move away from the slot of the impact member 721. After the locking member 724 is completely out of the slot, the impact member 721 loses its locking function and becomes movable. Under the elastic action of the spring, it moves in the y direction, piercing the sealing plate 716, and the refrigerant is ejected from the pierced hole. When a fire occurs in the front engine compartment of the vehicle, the high temperature causes the expansion bag in the safety valve 70 to expand. After the expansion, the locking member 724 is pushed in the x direction, away from the slot of the impact member 721. After the locking member 724 is completely out of the slot, the impact member 721 loses its locking function and becomes movable. Under the elastic action of the spring, it moves in the y direction, piercing the sealing plate 716, and the refrigerant is ejected from the punctured hole. The refrigerant ejected from the hole in the sealing plate 716 is discharged through the pressure relief port 711. The pressure relief port 711 can be connected to a conduit, the other end of which is placed in a safe position. The refrigerant is discharged to the safe position through the conduit to prevent explosion. The safe position is, for example, the position that is most accessible to the natural air.

[0069] In addition, an embodiment of the present application further provides a vehicle, which includes the refrigerant control system 10 described above.

[0070] It should be noted that the vehicle in the embodiments of the present application may refer to a large car, a small car, a special-purpose vehicle, etc. For example, based on the vehicle model, the vehicle in the embodiments of the present application may be a sedan, an off-road vehicle, a multi-purpose vehicle (MPV), or other vehicle models. A vehicle generally has wheels, a power source, and a transmission system arranged between the wheels and the power source. The transmission system can transmit power provided by the power source to the wheels, causing the wheels to rotate, thereby driving the vehicle.

[0071] It should be noted that in the embodiments of this application, the type of vehicle power source is not limited. For example, for a fuel-powered vehicle, the power source may refer to a gasoline engine, a diesel engine, or other fuel-powered engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; and for a vehicle powered by other means, the power source may refer to a device that generates power.

[0072] It should be noted that the various elements described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not further describe various possible combinations.

[0073] It should be understood that multiple components and / or parts can be provided by a single integrated component or part. Alternatively, a single integrated component or part can be divided into separate multiple components and / or parts. The disclosure "one" or "an" used to describe a component or part is not intended to exclude other components or parts.

[0074] It should be understood that although the terms “first” or “second” etc. may be used in the present application to describe various elements, these elements are not defined by these terms, and these terms are only used to distinguish one element from another.

[0075] The scope of protection of this application is not limited to the above-mentioned embodiments. Any changes or substitutions that can be conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A refrigerant control system, comprising a compressor, a condenser, a throttle valve, an evaporator, and a refrigerant pipeline, wherein the refrigerant pipeline connects the compressor, the condenser, the throttle valve, and the evaporator, and is characterized in that: The refrigerant control system further includes a safety valve, which includes: a valve body, wherein an access pipeline and a pressure relief port are provided on the valve body, the access pipeline is in communication with the refrigerant pipeline, and a side wall of the access pipeline includes a sealing plate, the sealing plate being used to seal the passage between the access pipeline and the pressure relief port; A safety and control component is located in the valve body, and the safety and control component includes an impact piece and a control component. The impact piece is located on the side of the sealing plate facing the pressure relief port. The control component is connected to the impact piece and is used to control the impact piece to pierce the sealing plate so that the access pipeline and the pressure relief port are connected.

2. The refrigerant control system according to claim 1, characterized in that: The control component includes a locking member and a locking control component, and the locking control component is connected to the locking member; the locking member is used to press against the impact member at the locking position to keep the impact member in a stationary state; the locking control component is used to control the locking member to move away from the impact member from the locking position to control the impact member to pierce the sealing plate.

3. The refrigerant control system according to claim 2, characterized in that: The control assembly further includes a power-assisting member connected to the impact member, and the power-assisting member is used to provide impact force to the impact member when the control assembly controls the impact member to pierce the sealing plate.

4. The refrigerant control system according to claim 2, characterized in that: The locking control assembly includes a driving member, which is connected to the locking member. The driving member drives the locking member away from the impact member from the locking position based on a control signal from the control panel. The control signal is sent by the control panel to the driving member in response to a received prompt signal. The prompt signal is used to indicate that a vehicle using a refrigerant control system has a fire risk.

5. The refrigerant control system according to claim 2 or 4, characterized in that: The locking assembly includes a thermal expansion unit connected to the locking member. The thermal expansion unit is used to expand when the temperature of the refrigerant control system exceeds the target temperature to drive the locking member away from the impact member from the locking position.

6. The refrigerant control system according to claim 3, characterized in that: The assisting member includes a spring. When the impact member connected to the spring is pressed tightly by the locking member, the impact member presses against the spring to put the spring into a force storage state.

7. The refrigerant control system according to claim 4, characterized in that: The driving component includes a motor and a lead screw.

8. The refrigerant control system according to claim 1, characterized in that: The access pipeline is in communication with a first refrigerant pipeline between the compressor and the condenser.

9. The refrigerant control system according to claim 1, characterized in that: One end of the impact piece facing the sealing plate is a pointed structure.

10. A vehicle, characterized in that: include: The refrigerant control system according to any one of claims 1 to 9.

Images