Automatic liquid supplementing expansion pot

Abstract

The utility model discloses an automatic liquid supplementing expansion kettle, and relates to the technical field of automobile expansion kettles. Comprising an expansion kettle body and a valve body connected with the expansion kettle body. The expansion pot body is provided with a first connector, the valve body is provided with a connector connected with the first connector in a matched mode, and the connector is connected with the first connector through a connecting assembly. The connector is connected with a sealing piece, and the sealing piece is configured to enable the first connector and the connector to be connected in a sealed mode when the connector is connected into the first connector. According to the engine cooling system, liquid supplementing in the expansion kettle can flow into different cooling loops, one expansion kettle can be arranged in the multiple cooling loops, and therefore the number of the expansion kettles in the engine cooling system can be reduced, the number of molds can be reduced, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile expansion pots, and in particular relates to an automatic liquid-replenishing expansion pot. Background Art

[0002] The expansion pot is an essential safety function component of the automobile engine cooling system, which is used to accommodate and compensate for the expansion and contraction of water in the system. During the operation of the engine, the coolant expands. In order to avoid air blockage in the cooling system, the expansion pot has an exhaust port that can allow coolant vapor to enter the expansion water tank to prevent a large amount of coolant evaporation loss. The expansion pot can also be connected to the water supply pipeline leading to the water inlet side of the water pump to replenish antifreeze on the water inlet side of the water pump; the expansion pot can provide room for the coolant to expand due to changes in temperature, load, and speed, ensuring the coolant circulation capacity.

[0003] However, in the prior art, in summer, the coolant temperature of the power battery cooling circuit is required to be about 20-25°C, the motor and electronic control coolant temperature is about 50-60°C, the fuel cell coolant temperature is about 60-70°C, and the engine coolant is about 80-100°C. These cooling circuits all require expansion pots to pressurize and replenish them, but the existing design scheme will provide an expansion pot for each cooling circuit, which will result in many pots being arranged on the vehicle chassis. Since the layout design of multiple expansion pots in the cabin is difficult, the structural form of each expansion pot on most models is inconsistent, resulting in the need to develop multiple sets of expansion pot molds. The mold development cost is high, which directly leads to high vehicle cost and inconvenience during maintenance. In addition, the limited installation space is not conducive to the installation of multiple expansion pots. Utility Model Content

[0004] The utility model provides an automatic liquid replenishing expansion pot to solve the problem that each cooling circuit needs to be provided with an expansion pot, the expansion pots have inconsistent structural forms and need to develop multiple sets of molds, resulting in inconvenience in maintenance and installation.

[0005] The technical solution adopted by the utility model is:

[0006] An automatic fluid replenishment expansion kettle, comprising an expansion kettle body and a valve body connected to the expansion kettle body; the expansion kettle body is provided with a first interface, the valve body is provided with a joint that cooperates with the first interface, and the joint is connected to the first interface through a connecting component; the joint is connected with a sealing member, and the sealing member is configured to enable a sealed connection between the first interface and the joint when the joint is connected to the first interface.

[0007] The automatic liquid replenishment expansion pot of the utility model also has the following additional technical features:

[0008] The connecting assembly includes a pressing piece and a buckle, the pressing piece is connected to the peripheral side of the connector through an elastic piece; the buckle is connected to the end of the pressing piece, and a plurality of limiting steps matching the buckle are provided on the outer side of the first interface; the buckle is engaged with the limiting steps by pressing the pressing piece, so that the connector can be plugged and connected to different installation positions in the first interface.

[0009] The limiting step is an arc-shaped protrusion arranged on the peripheral side of the first interface, and a plurality of the limiting steps are evenly spaced and distributed along the axial direction of the first interface.

[0010] The connecting component includes a protrusion, which is connected to the peripheral side of the joint; a sliding groove that slidably cooperates with the protrusion is provided in the first interface, so that the joint is connected to the installation position of the first interface when the protrusion moves along the sliding groove.

[0011] The slide groove includes a first slide groove arranged along the axial direction of the joint and a second slide groove arranged along the inner circumference of the joint, and the first slide groove is connected to the second slide groove; the protrusion slides along the first slide groove to allow the joint to be inserted axially into the first interface, and the protrusion slides along the second slide groove to lock the joint and the first interface along the radial direction.

[0012] The peripheral side of the expansion pot body is connected with a mounting piece protruding from the outer wall, and a mounting hole is provided in the mounting piece. Bolts pass through the mounting hole to connect the expansion pot body with the vehicle body.

[0013] The expansion pot body is also connected to a first exhaust pipe and a second exhaust pipe. The first exhaust pipe is used to connect to the radiator exhaust pipeline, and output the steam exhausted from the radiator into the expansion pot body through the first exhaust pipe; the second exhaust pipe is used to connect to the engine water channel outlet pipeline, and output the steam exhausted from the engine water channel into the expansion pot body through the second exhaust pipe.

[0014] A groove is provided on the circumferential side of the joint, and the sealing member is connected in the groove; a first limiting member is connected to at least one side of the joint in the radial direction, and the first limiting member is used to limit the sealing member in the axial direction.

[0015] A protrusion and a second limiting member on the inner wall of the first interface are provided in the first interface, so that the first limiting member is limited in the axial direction when the first limiting member is inserted into the first interface.

[0016] The automatic rehydration expansion pot also includes a pipeline connector, which has a plug end and a connecting end that are relatively arranged. The plug end is used for plugging and connecting with the first interface, and the connecting end is used for connecting with the drainage pipeline.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0018] 1. The present application relates to an automatic fluid replenishment expansion pot, in which the expansion pot body is connected to a valve body, so that the expansion pot has multiple output ports, so that the replenishment in the expansion pot can flow to different cooling circuits respectively, and multiple cooling circuits can be provided with an expansion pot, so that the number of expansion pots in the engine cooling system can be reduced, the number of molds can be reduced, and installation and maintenance are convenient; and the expansion pot body is connected to the valve body through a first interface opened by the expansion pot and a joint of the valve body through a connecting component, and a seal is connected to the joint, and under the double sealing action of the connecting component and the seal, the joint and the first interface are sealed and connected, thereby enhancing the sealing performance and preventing leakage of replenishment between the expansion pot body and the valve body. At the same time, a detachable connection between the expansion pot body and the valve body can be achieved, thereby achieving quick installation and disassembly, facilitating operation and use, and enhancing user experience.

[0019] 2. As a preferred embodiment of the present invention, the connecting assembly includes a pressing piece and a buckle, the pressing piece is connected to the peripheral side of the connector through an elastic piece; the buckle is connected to the end of the pressing piece, and a plurality of limiting steps matching the buckle are provided on the outside of the first interface; the pressing piece is pressed to engage the buckle with the limiting steps, so that the connector can be plugged into different installation positions in the first interface.

[0020] The pressing piece can lift up the buckle at the end from the peripheral side of the connector. When the connector is inserted into the first interface, the lifted buckle can be snapped into the corresponding limiting step when the pressing piece is released. The limiting step limits the buckle in the axial direction. Since a plurality of limiting steps are arranged along the outer side of the first connector, the buckle can cooperate with the limiting steps at different positions, so that the first interface is provided with different installation positions for installing the connector. The connector can be adjusted to be installed in different installation positions of the first interface according to space requirements, thereby improving the applicability of the expansion pot.

[0021] 3. As a preferred embodiment of the present invention, the limiting step is an arc-shaped protrusion arranged on the peripheral side of the first interface, and a plurality of limiting steps are evenly spaced along the axial direction of the first interface.

[0022] The limiting step can have a variety of shapes. As a preferred shape, the limiting step is set as an arc-shaped protrusion set on the peripheral side of the first interface. Multiple limiting steps are evenly spaced along the axial direction of the first interface, so that the connector can be connected to multiple installation positions in the axial direction of the first interface, so that the connection between the connector and the first interface can be suitable for different installation spaces, and the connection between the connector and the first interface is adjustable, which is convenient for installation and maintenance. When a certain section of the front end of the connector is damaged, the rear section can be directly extended into the first interface without replacement, so that the buckle of the connector is connected to the corresponding limiting step of the first interface, so that the connection position between the connector and the first interface is adjustable, which is convenient for maintenance and application.

[0023] 4. As a preferred embodiment of the present invention, the connecting component includes a protrusion, which is connected to the peripheral side of the joint; a sliding groove that slidably cooperates with the protrusion is provided in the first interface, so that the joint is connected to the installation position of the first interface when the protrusion moves along the sliding groove.

[0024] Another preferred way of connecting the components is to provide a protrusion on the connector, and to provide a sliding groove on the inner side of the first interface which is slidably connected to the protrusion. When the connector is inserted into the first interface to be connected to the first interface, the protrusion is moved along the sliding groove so that the connector is moved to the installation position of the first interface, thereby realizing the connection between the connector and the first interface.

[0025] 5. As a preferred embodiment of the present invention, the slide groove includes a first slide groove arranged along the axial direction of the joint and a second slide groove arranged along the inner circumference of the joint, and the first slide groove is connected to the second slide groove; the protrusion slides along the first slide groove to allow the joint to be inserted axially into the first interface, and the protrusion slides along the second slide groove to lock the joint and the first interface along the radial direction.

[0026] In order to achieve a locking connection between the connector and the first interface after the protrusion moves along the slide groove, the slide grooves are set to be a first slide groove and a second slide groove that are connected. When in use, the protrusion moves along the first slide groove and then enters the second slide groove and continues to slide, so that the connector slides into the first interface along the axially arranged first slide groove, and then the protrusion moves along the second slide groove distributed in the radial direction, so that the connector moves to the corresponding position of the first interface along the radial direction. When the protrusion abuts against the end end face of the second slide groove, the connector and the first interface are locked in the radial direction, thereby achieving the connection between the connector and the first interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0028] Figure 1This is an overall structural diagram of an automatic liquid replenishment expansion kettle according to one embodiment of the utility model;

[0029] Figure 2 This is an internal structure diagram of an automatic liquid replenishment expansion kettle according to one embodiment of the utility model;

[0030] Figure 3 It is a structural schematic diagram of an expansion pot body of an automatic liquid replenishment expansion pot in one embodiment of the utility model;

[0031] Figure 4 It is a structural schematic diagram of a pipeline connector of an automatic liquid replenishment expansion kettle according to an embodiment of the utility model;

[0032] Figure 5 It is a structural schematic diagram of a connection assembly of an automatic liquid replenishment expansion kettle in one embodiment of the utility model;

[0033] Figure 6 It is a partial structural schematic diagram of the connection position between a joint and a first interface of an automatic liquid replenishment expansion kettle according to an embodiment of the present utility model;

[0034] Figure 7 It is a structural schematic diagram of a partition assembly of an automatic liquid replenishment expansion kettle according to an embodiment of the utility model;

[0035] In the figure,

[0036] 1. Expansion pot body; 2. Valve body; 3. First interface; 4. Connector; 5. First liquid replenishment port; 6. Second liquid replenishment port; 7. Mounting piece; 8. Mounting hole; 9. Water replenishment port; 10. Sealing piece;

[0037] 11. Connecting assembly; 111. Pressing piece; 112. Buckle;

[0038] 12. Groove; 13. First stopper; 14. Second stopper; 15. Pipe connector; 16. Plug-in end; 17. Connecting end; 18. Sealing structure; 19. Electrical connector; 20. First exhaust pipe; 21. Second exhaust pipe; 22. Stop step; 23. First partition; 24. Second partition; 25. Third partition. DETAILED DESCRIPTION

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0040] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore cannot be understood as a limitation on the present invention.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may 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 description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0043] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0044] The utility model relates to an automatic liquid replenishing expansion pot, such as Figure 1-7 As shown, it includes an expansion pot body 1 and a valve body 2 connected to the expansion pot body 1; the expansion pot body 1 is provided with a first interface 3, and the valve body 2 is provided with a connector 4 that cooperates with the first interface 3, and the connector 4 is connected to the first interface 3 through a connecting component 11; the connector 4 is connected to a seal 10, and the seal 10 is configured to enable a sealed connection between the first interface 3 and the connector 4 when the connector 4 is connected to the first interface 3.

[0045] The expansion pot body 1 is connected to the valve body 2, so that the expansion pot has multiple output ports, so that the replenishing fluid in the expansion pot can flow to different cooling circuits respectively, and multiple cooling circuits can be provided with an expansion pot, so as to reduce the number of expansion pots in the engine cooling system, reduce the number of molds, and facilitate installation and maintenance; and the expansion pot body 1 is connected to the valve body 2 through the first interface 3 opened by the expansion pot and the joint 4 of the valve body 2 through the connecting component 11, and a seal 10 is connected to the joint 4, and under the double sealing action of the connecting component 11 and the seal 10, the joint 4 and the first interface 3 are sealed and connected, thereby enhancing the sealing performance and preventing the replenishing fluid from leaking between the expansion pot body 1 and the valve body 2. At the same time, the detachable connection between the expansion pot body 1 and the valve body 2 can also be realized, so as to realize quick installation and disassembly, facilitate operation and use, and enhance the user experience.

[0046] The top of the expansion pot body 1 is provided with a water filling port 9, and the bottom of the expansion pot is provided with a first interface 3, which can be used as a connection port with the valve body 2 and can also be used as a water inlet of the valve body 2. Preferably, the valve body 2 in the present application adopts a three-way valve body 2. Figure 1 and Figure 3 As shown, the valve body 2 has a first liquid replenishing port 5 and a second liquid replenishing port 6. The first liquid replenishing port 5 and the second liquid replenishing port 6 can be connected to the first interface 3 of the expansion pot body 1 respectively under the action of the valve core of the valve body 2, so that the cooling liquid inside the expansion pot body 1 can flow to different cooling circuits through the first liquid replenishing port 5 or the second liquid replenishing port 6 respectively, so that multiple cooling circuits can use one expansion pot, avoiding the traditional need to set up an expansion pot for each cooling circuit.

[0047] Preferably, in the present application, the first refill port 5 is connected to the battery cooling circuit, and the second refill port 6 is connected to the motor cooling circuit. During use, each time the vehicle is powered on, the vehicle controller will control the valve body 2 to open the first refill port 5 to connect with the battery cooling circuit, and maintain this state for 1 minute, and then restore the second refill port 6 to connect with the motor cooling circuit. Under normal conditions, the second refill port 6 is usually connected to the motor cooling circuit, and the first refill port 5 is closed; when the water pump in the motor cooling circuit feedback water shortage fault, and the vehicle motor and electronic control temperature are normal, the vehicle controller will control the valve core in the valve body 2 to switch to the first refill port 5 to connect with the battery cooling circuit, and maintain this state for 1 minute, and then restore the second refill port 6 to connect with the motor cooling circuit; when the vehicle is in the charging state, the vehicle controller will control the valve core of the valve body 2 to switch to the first refill port 5 to connect with the battery cooling circuit and maintain this state. When the charging signal disappears, the second refill port 6 is restored to the circuit of the motor cooling circuit.

[0048] The connection component 11 may have a variety of structures and is not limited to the methods listed in this application. Specifically, any one of the following embodiments may be adopted:

[0049] Embodiment 1: The connecting component 11 includes a pressing piece 111 and a buckle 112, the pressing piece 111 is connected to the peripheral side of the connector 4 through an elastic piece; the buckle 112 is connected to the end of the pressing piece 111, and a plurality of limiting steps 22 matching the buckle 112 are provided on the outside of the first interface 3; the buckle 112 is engaged with the limiting steps 22 by pressing the pressing piece 111, so that the connector 4 can be plugged and connected to different installation positions in the first interface 3.

[0050] The pressing piece 111 can lift up the buckle 112 at the end from the peripheral side of the connector 4. When the connector 4 is inserted into the first interface 3, the lifted buckle 112 can be snapped into the corresponding limiting step 22 when the pressing piece 111 is released. The limiting step 22 limits the buckle 112 in the axial direction. Since a plurality of limiting steps 22 are provided along the outer side of the first connector 4, the buckle 112 can cooperate with the limiting steps 22 at different positions, so that the first interface 3 is provided with different installation positions for installing the connector 4. The connector 4 can be installed in different installation positions of the first interface 3 according to space requirements, thereby improving the applicability of the expansion pot.

[0051] Furthermore, the limiting step 22 is provided in the form of an arc-shaped protrusion on the circumference of the first interface 3 , and a plurality of limiting steps 22 are distributed at equal intervals along the axial direction of the first interface 3 .

[0052] The limiting step 22 can have various shapes, preferably, Figure 5 As shown, the limiting step 22 is set as an arc-shaped protrusion set on the side of the first interface 3, and multiple limiting steps 22 are evenly spaced along the axial direction of the first interface 3, so that the connector 4 can be connected to multiple installation positions in the axial direction of the first interface 3, so that the connection between the connector 4 and the first interface 3 can be suitable for different installation spaces, and the connection between the connector 4 and the first interface 3 is adjustable, which is convenient for installation and maintenance. When a certain section of the front end of the connector 4 is damaged, the rear section can be directly extended into the first interface 3 without replacement, so that the buckle 112 of the connector 4 is connected to the corresponding limiting step 22 of the first interface 3, so that the connection position of the connector 4 and the first interface 3 is adjustable, which is convenient for maintenance and application.

[0053] Embodiment 2: The connecting component 11 includes a protrusion, which is connected to the peripheral side of the connector 4; a slide groove slidably matched with the protrusion is provided in the first interface 3, so that the connector 4 is connected to the installation position of the first interface 3 when the protrusion moves along the slide groove.

[0054] The protrusion is connected to the peripheral side of the connector 4, and the inner wall of the first interface 3 is provided with a sliding groove which is slidably connected to the protrusion. When in use, in order to enable the connector 4 to be connected to the first interface 3, the connector 4 is slid along the sliding groove of the first interface 3 to the inside of the first interface 3, so that the connector 4 can be moved to the installation position inside the first interface 3 for installing the connector 4.

[0055] Furthermore, the slide groove includes a first slide groove arranged along the axial direction of the joint 4 and a second slide groove arranged along the inner circumference of the joint 4, and the first slide groove is connected to the second slide groove; the protrusion slides along the first slide groove to allow the joint 4 to be inserted axially into the first interface 3, and the protrusion slides along the second slide groove to lock the joint 4 and the first interface 3 in the radial direction.

[0056] In order to prevent the connector 4 from slipping out of the first interface 3, the slide groove is set as a first slide groove and a second slide groove connected to each other, the first slide groove is distributed along the axial direction of the first interface 3, the second slide groove is distributed along the radial direction of the first interface 3, the first slide groove and the second slide groove are connected, and the sliding direction of the connector 4 entering the first interface 3 is described, and the end of the first slide groove is connected to the front end of the second slide groove. In this way, when the protrusion of the connector 4 slides along the first slide groove, so that the connector 4 extends into the first interface 3 along the axial direction of the first interface 3, the protrusion moves along the second slide groove, so that the connector 4 rotates inside the first interface 3 along the radial direction of the first interface 3. Since the protrusion cooperates with the second slide groove, the connector 4 can be locked and connected with the first interface 3 in the radial direction and the axial direction. The seal 10 can seal the connector 4 and the first interface 3, thereby further preventing the coolant from leaking from the connection between the connector 4 and the first interface 3.

[0057] As a preferred embodiment, a mounting member 7 protruding from the outer wall is connected to the peripheral side of the expansion pot body 1, and a mounting hole 8 is provided in the mounting member 7. Bolts pass through the mounting hole 8 to connect the expansion pot body 1 to the vehicle body.

[0058] The surrounding side of the expansion pot body 1 is connected with a mounting part 7 protruding from the outer wall. The purpose of setting the mounting part 7 is to set a mounting hole 8 on the mounting part 7. The expansion pot body 1 is connected to the vehicle body by passing bolts through the mounting hole 8. It can be connected to the vehicle body or chassis frame.

[0059] As a preferred embodiment, the expansion pot body 1 is also connected to a first exhaust pipe 20 and a second exhaust pipe 21. The first exhaust pipe 20 is used to connect to the radiator exhaust pipeline, and the steam exhausted from the radiator is output to the expansion pot body 1 through the first exhaust pipe 20; the second exhaust pipe 21 is used to connect to the engine water channel outlet pipeline, and the steam exhausted from the engine water channel is output to the expansion pot body 1 through the second exhaust pipe 21.

[0060] like Figure 1 and Figure 2 As shown, a first exhaust pipe 20 and a second exhaust pipe 21 are also provided on the expansion pot body 1. The first exhaust pipe 20 and the second exhaust pipe 21 are arranged in parallel. The first exhaust pipe 20 is used to be connected with the radiator exhaust pipeline, so that the steam emitted by the radiator can enter the expansion pot body 1 through the first exhaust pipe 20 for collection. The second exhaust pipe 21 is used to be connected with the engine water channel outlet pipeline, so that the steam emitted by the engine water channel can enter the expansion pot body 1 through the outlet pipeline for collection. If there is air blockage in the radiator exhaust pipeline or the engine water channel outlet pipeline, the normal operation of the engine will be affected.

[0061] As a preferred embodiment, a groove 12 is opened on the circumference of the joint 4, and the seal 10 is connected in the groove 12; a first limiter 13 is connected to at least one side of the joint 4 along the radial direction, and the first limiter 13 is used to limit the seal 10 in the axial direction.

[0062] In order to achieve the positioning and installation of the seal 10, a groove 12 is provided on the circumferential side of the joint 4, and the groove 12 can accommodate part of the structure of the seal 10. The top of the seal 10 extends beyond the groove 12 to facilitate the sealed connection between the joint 4 and the inner wall of the first interface 3. In order to avoid displacement of the seal 10 when the joint 4 is connected to the first interface 3, a first limiter 13 is connected to at least one side in the radial direction of the joint 4, so that the seal 10 can be limited along the axial direction of the joint 4 to prevent the seal 10 from falling off along the axial direction of the joint 4.

[0063] Furthermore, if Figure 6 As shown, a second limiting member 14 protruding from the inner wall of the first interface 3 is provided in the first interface 3 so as to limit the first limiting member 13 in the axial direction when the first limiting member 13 is inserted into the first interface 3 .

[0064] In order to prevent the first limiting member 13 from being displaced inside the first interface 3 when the connector 4 is inserted into the first interface 3, to enhance the connection strength between the connector 4 and the first interface 3 and to prevent the first limiting member 13 from exceeding the preset position inside the first interface 3, a second limiting member 14 is provided in the first interface 3 corresponding to the first limiting member 13. The second limiting member 14 is protruded on the inner wall of the first interface 3 and can limit the first limiting member 13 in the axial direction. Preferably, the second limiting member 14 and the first limiting member 13 can be separated by a preset distance.

[0065] As a preferred embodiment, the automatic rehydration expansion kettle also includes a pipe connector 15, which has a plug end 16 and a connecting end 17 that are relatively arranged. The plug end 16 is used to be plugged and connected to the first interface 3, and the connecting end 17 is used to connect to the cooling pipeline.

[0066] In addition, a single expansion pot body 1 can also be connected to a cooling circuit, and the valve body 2 can be separated from the expansion pot body 1, and the separated expansion pot body 1 can be connected to the corresponding cooling circuit through the connecting pipe connector 15. Figure 4 As shown, the pipeline connector 15 includes a pipeline body and a pipeline connector; the pipeline connector is connected to one end of the pipeline body to form a plug-in end 16 of the pipeline body, and is plug-connected with the first interface 3 through the plug-in end 16. The other end of the pipeline body is provided with a connecting end 17, and the connecting end 17 can be connected to the cooling pipeline, so as to achieve the connection between a single expansion pot and the cooling pipeline. Specifically, the plug-in end 16 can be provided with a positioning groove, and the sealing structure 18 can be connected to the positioning groove. When the plug-in end 16 is plug-connected with the first interface 3, the sealing connection between the plug-in end 16 and the first interface 3 is achieved through the sealing structure 18. The size of the plug-in end 16 and the first interface 3 can be adapted, so that the plug-in end 16 can be snap-connected in the first interface 3.

[0067] In addition, the valve body 2 is also connected to an electrical connector, which is connected to the vehicle controller by inserting a wiring harness into the electrical connector, so as to adjust the valve core angle of the entire valve body 2 and close the first fluid replenishment port 5 or the second fluid replenishment port 6, so as to switch the connection and disconnection between the corresponding first fluid replenishment port 5 and the battery cooling circuit, and the second fluid replenishment port 6 and the motor cooling circuit.

[0068] As a preferred embodiment, a baffle assembly is further provided inside the expansion pot body 1, and the baffle assembly includes a first baffle 23, a second baffle 24 and a third baffle 25. The first baffle 23 is directly opposite to the first exhaust pipe 20 and the second exhaust pipe 21. Figure 2 and Figure 3 In the orientation shown, one end of the first baffle 23 extending vertically is connected to the inner wall of the expansion pot body, and one end of the first baffle 23 extending horizontally is connected to the inner wall of the expansion pot body, so that the first baffle 23 separates the expansion pot body from the first exhaust pipe 20 and the second exhaust pipe 21, thereby preventing the gas-liquid mixture from directly rushing into the expansion pot body during the exhaust process; Figure 7As shown, the first partition 23 has a notch at one end extending in the transverse direction, and the gas-liquid mixture can enter the interior of the expansion pot body through this notch during the exhaust process. The second partition 24 has multiple openings in the horizontal direction, and its function is to prevent the coolant from shaking during the driving of the vehicle. At the same time, the coolant can also flow into the third partition 25 or the rest of the interior of the expansion pot body through these partitions. The third partition 25 has an end extending in the horizontal direction and a flange folded in the vertical direction. The third partition 25 has no notch in the horizontal direction. The flange structure of the third partition formed at a certain angle in the vertical direction serves to make the coolant flow through this plate to the right side of the interior of the expansion pot body. Through the design of the partition assembly, the coolant entering the three-way valve during the filling and exhaust process can be as liquid as possible to prevent gas from entering the cooling circuit.

[0069] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0070] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0071] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An automatic liquid replenishment expansion pot, characterized in that: It includes an expansion pot body and a valve body connected to the expansion pot body; the expansion pot body is provided with a first interface, the valve body is provided with a joint that cooperates with the first interface, and the joint is connected to the first interface through a connecting component; the joint is connected with a sealing member, and the sealing member is configured to enable a sealed connection between the first interface and the joint when the joint is connected to the first interface.

2. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: The connecting assembly includes a pressing piece and a buckle, the pressing piece is connected to the peripheral side of the connector through an elastic piece; the buckle is connected to the end of the pressing piece, and a plurality of limiting steps matching the buckle are provided on the outer side of the first interface; the buckle is engaged with the limiting steps by pressing the pressing piece, so that the connector can be plugged and connected to different installation positions in the first interface.

3. The automatic liquid replenishment expansion pot according to claim 2, characterized in that: The limiting step is an arc-shaped protrusion arranged on the peripheral side of the first interface, and a plurality of the limiting steps are evenly spaced and distributed along the axial direction of the first interface.

4. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: The connecting component includes a protrusion, which is connected to the peripheral side of the joint; a sliding groove that slidably cooperates with the protrusion is provided in the first interface, so that the joint is connected to the installation position of the first interface when the protrusion moves along the sliding groove.

5. The automatic liquid replenishment expansion pot according to claim 4, characterized in that: The slide groove includes a first slide groove arranged along the axial direction of the joint and a second slide groove arranged along the inner circumference of the joint, and the first slide groove is connected to the second slide groove; the protrusion slides along the first slide groove to allow the joint to be inserted axially into the first interface, and the protrusion slides along the second slide groove to lock the joint and the first interface along the radial direction.

6. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: The peripheral side of the expansion pot body is connected with a mounting piece protruding from the outer wall, and a mounting hole is provided in the mounting piece. Bolts pass through the mounting hole to connect the expansion pot body with the vehicle body.

7. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: The expansion pot body is also connected to a first exhaust pipe and a second exhaust pipe. The first exhaust pipe is used to connect to the radiator exhaust pipeline, and output the steam exhausted from the radiator into the expansion pot body through the first exhaust pipe; the second exhaust pipe is used to connect to the engine water channel outlet pipeline, and output the steam exhausted from the engine water channel into the expansion pot body through the second exhaust pipe.

8. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: A groove is provided on the circumferential side of the joint, and the sealing member is connected in the groove; a first limiting member is connected to at least one side of the joint in the radial direction, and the first limiting member is used to limit the sealing member in the axial direction.

9. The automatic liquid replenishment expansion pot according to claim 8, characterized in that: A second limiting member protruding from the inner wall of the first interface is arranged in the first interface, so that the first limiting member is limited in the axial direction when the first limiting member is inserted into the first interface.

10. The automatic liquid replenishment expansion pot according to claim 1, characterized in that: It also includes a pipeline connector, which has a plug-in end and a connecting end that are relatively arranged. The plug-in end is used for plug-connecting with the first interface, and the connecting end is used for connecting with the drainage pipeline.

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