Integrated one-piece expansion water tank, thermal management system and vehicle

Abstract

The utility model relates to an integrated one-piece type expansion water tank, a heat management system and a vehicle. The integrated one-piece type expansion water tank comprises a liquid level sensor and at least two water kettles. The at least two kettles are connected with each other, the liquid level sensor is connected to the at least two kettles, the liquid level sensor is provided with at least two detection ends, the detection ends are in one-to-one correspondence with the kettles, and each detection end is connected into the corresponding kettle. According to the integrated one-piece expansion water tank, through integration of the kettle and integration of the liquid level sensor, the integration degree is greatly improved through the two integration modes, and the manufacturing cost of the whole vehicle is reduced.

Description

Technical Field

[0001] The present disclosure relates to vehicle manufacturing technology, and in particular to an integrated one-piece expansion water tank, a thermal management system and a vehicle. Background Art

[0002] There are multiple expansion water tanks in the thermal management system in the related technology. The multiple expansion water tanks are of split structure. Each expansion water tank is provided with a liquid level detection sensor. The multiple liquid level detection sensors need to be connected to the main control system through wiring harnesses, resulting in low vehicle integration, too many wiring harnesses and high cost. Utility Model Content

[0003] The purpose of the present disclosure is to provide an integrated one-piece expansion water tank, a thermal management system and a vehicle to solve the above-mentioned problems in the related art.

[0004] One aspect of the present disclosure provides an integrated one-piece expansion tank, comprising a liquid level sensor and at least two kettles;

[0005] At least two of the kettles are connected to each other, the liquid level sensor is connected to at least two of the kettles, the liquid level sensor has at least two detection ends, the detection ends correspond to the kettles one by one, and each detection end is connected to the corresponding kettle.

[0006] Optionally, a detection hole is opened on one side of at least two of the kettles close to each other, and the liquid level sensor includes a shell and at least two pins, the pins are set as the detection ends, one end of the pins is connected to the shell, and the other end of the pins passes through the detection hole and is inserted into the corresponding kettle.

[0007] Optionally, the detection hole is located at the top of the corresponding kettle, in the vertical direction, the top of the pin is connected to the shell, the bottom of the pin is inserted into the kettle, and the straight-line distance between the bottom of each pin and the corresponding inner bottom wall of the kettle is the same or different.

[0008] Optionally, a mounting groove is provided on the top of at least two of the kettles, the detection hole is opened at the bottom of the mounting groove, and the shell is installed in the mounting groove.

[0009] Optionally, the liquid level sensor is constructed as a probe type liquid level sensor, and the integrated one-piece expansion water tank also includes a conductive member, and two ends of the conductive member are respectively connected to two adjacent kettles to make the liquids in the two adjacent kettles electrically conductive.

[0010] Optionally, a connecting hole is provided at the bottom of the side where two adjacent kettles are close to each other, the conductive member is connected to the connecting hole and blocks the connecting hole, and both ends of the conductive member protrude from the opening of the connecting hole.

[0011] Optionally, two adjacent kettles include a first kettle body and a second kettle body, the first kettle body and the second kettle body are connected to each other, and the first kettle body and the second kettle body are respectively provided with a pressure cover.

[0012] Optionally, a connecting side plate is provided between the first kettle body and the second kettle body, the first kettle body and the second kettle body have an open structure facing each other, and the first kettle body and the second kettle body are connected and closed by the connecting side plate.

[0013] Optionally, the connecting side plate includes a first plate body and two oppositely arranged second plate bodies, one end of the two second plate bodies is connected to one end of the first plate body, and the connecting hole is opened in the first plate body.

[0014] Optionally, a plurality of spaced connecting ribs are provided between the two second plates.

[0015] A second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned integrated one-piece expansion water tank.

[0016] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned integrated one-piece expansion water tank, or the above-mentioned thermal management system.

[0017] In the above technical solution, adjacent kettles are connected to each other to realize an integrated one-piece design, which improves the integrated design of the expansion water tank itself and can reasonably plan the space occupied by the expansion water tank. The number of liquid level sensors is one, and the number of detection ends of the liquid level sensor can be multiple. Due to the one-piece integrated design of the kettle, the liquid level sensor can also be designed in an integrated manner. By setting up multiple detection ends to connect to the corresponding kettles respectively, it can be detected whether the coolant in each kettle is lower than the preset liquid level height. The liquid level sensor can be connected to the master control system through a single wiring harness, which greatly reduces the number of wiring harnesses and reduces the assembly volume of the entire vehicle. This integrated one-piece expansion water tank greatly improves the integration and reduces the manufacturing cost of the entire vehicle through the integration of the kettle and the integration of the liquid level sensor.

[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0020] Figure 1is a three-dimensional schematic diagram of an integrated one-piece expansion water tank according to an embodiment of the present disclosure;

[0021] Figure 2 It is a structural schematic diagram of an integrated one-piece expansion water tank according to an embodiment of the present disclosure from one perspective;

[0022] Figure 3 This is an embodiment of the present disclosure Figure 2 Sectional view of the AA plane;

[0023] Figure 4 This is an embodiment of the present disclosure Figure 3 A magnified schematic diagram of the middle C position;

[0024] Figure 5 is a structural schematic diagram of an integrated one-piece expansion water tank according to an embodiment of the present disclosure from another perspective;

[0025] Figure 6 This is an embodiment of the present disclosure Figure 5 Sectional view of the BB plane.

[0026] Description of Reference Numerals

[0027] 1. Liquid level sensor, 11. Housing, 12. Pin;

[0028] 2. kettle, 21. detection hole, 22. mounting groove, 23. connection hole, 24. first kettle body, 25. second kettle body, 26. connecting side plate, 261. first plate body, 262. second plate body, 263. connecting rib;

[0029] 3. Conductive parts;

[0030] 4. Pressure cover. DETAILED DESCRIPTION

[0031] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0032] In the present disclosure, unless otherwise stated, directional words such as "upper" and "lower" are usually defined by the direction of the drawing, and "inner" and "outer" refer to the inside and outside of the relevant parts. In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0034] With the development of new energy vehicles, the thermal management system needs to realize more and more functions, that is, multiple working modes. On this basis, there may be multiple different coolant flow paths, and different coolant flow paths need to be equipped with expansion water tanks.

[0035] Therefore, there are multiple expansion water tanks in the thermal management system in the related technology. The multiple expansion water tanks are of split structure. Each expansion water tank is provided with a liquid level detection sensor for realizing timely low liquid level warning. The multiple liquid level detection sensors need to be connected to the master control system through wiring harnesses to realize master control, resulting in low vehicle integration, too many wiring harnesses and high cost.

[0036] For this reason, Figure 1-Figure 6 As shown, one aspect of the present disclosure provides an integrated one-piece expansion water tank, comprising a liquid level sensor 1 and at least two kettles 2 .

[0037] At least two kettles 2 are connected to each other, and the liquid level sensor 1 is connected to the at least two kettles 2 . The liquid level sensor 1 has at least two detection ends, and the detection ends correspond to the kettles 2 one by one. Each detection end is connected to the corresponding kettle 2 .

[0038] Among them, each detection end of the liquid level sensor 1 can respectively detect whether the liquid level in the corresponding kettle 2 is lower than the preset liquid level height, and can cooperate with the vehicle's master control system to realize an alarm.

[0039] In the above technical solution, adjacent kettles 2 are connected to each other to realize an integrated one-piece design, thereby improving the integrated design of the expansion water tank itself and rationally planning the space occupied by the expansion water tank. The number of liquid level sensors 1 is one, and the number of detection ends of the liquid level sensor 1 can be multiple. Due to the one-piece integrated design of the kettle 2, the liquid level sensor 1 can also be designed in an integrated manner. By setting multiple detection ends to connect with the corresponding kettles 2 respectively, it can be detected whether the coolant in each kettle 2 is lower than the preset liquid level height, and the liquid level sensor 1 can be connected to the master control system through a single wiring harness, which greatly reduces the number of wiring harnesses and reduces the assembly volume of the entire vehicle. This integrated one-piece expansion water tank greatly improves the integration through the integration of the kettle 2 and the integration of the liquid level sensor 1, and reduces the manufacturing cost of the entire vehicle.

[0040] Optionally, in one embodiment of the present disclosure, a detection hole 21 is provided on a side where at least two kettles 2 are close to each other, and the liquid level sensor 1 includes a housing 11 and at least two pins 12, wherein the pins 12 are provided as detection ends, one end of the pins 12 is connected to the housing 11, and the other end of the pins 12 passes through the detection hole 21 and is inserted into the corresponding kettle 2. The detection hole 21 provided can facilitate the insertion of the pins 12 of the liquid level sensor 1 into the kettle 2 to realize liquid level detection, and the detection hole 21 is located on a side where at least two kettles 2 are close to each other, so that the pins 12 connected to one housing 11 can be inserted into the detection hole 21 respectively, which facilitates integration and avoids the need for excessive design of the liquid level sensor 1.

[0041] In some examples, the pin 12 is inserted into the kettle 2 through the detection hole 21 and contacts or does not contact the coolant in the kettle 2, so that liquid level detection can be achieved. A sealing rubber ring can be set in the hole wall of the detection hole 21, and the pin 12 passes through the sealing rubber ring. The inner ring wall of the sealing rubber ring can fit tightly with the pin 12, so that the coolant in the kettle 2 can be prevented from overflowing from the detection hole 21.

[0042] In some examples, a circuit board is disposed in the housing 11 , a mounting hole is provided on the housing 11 , and one end of the pin 12 extends into the housing 11 through the mounting hole and is connected to the circuit board through an electrical connector.

[0043] Optionally, in one embodiment of the present disclosure, the detection hole 21 is located at the top of the corresponding kettle 2, in the vertical direction, the top of the pin 12 is connected to the shell 11, the bottom of the pin 12 is inserted into the kettle 2, and the straight-line distance between the bottom of each pin 12 and the inner bottom wall of the corresponding kettle 2 is the same or different.

[0044] Among them, the detection hole 21 is at the top of the kettle 2, which can facilitate the assembly of the pin 12 and the detection hole 21, and can also better prevent the coolant in the kettle 2 from overflowing from the detection hole 21, and can also facilitate the linear distance between the pin 12 and the inner bottom wall of the shell 11, so as to adjust the detection of the liquid level height of the coolant in different kettles 2 according to different situations to meet different needs. In some examples, the pin 12 can be set vertically, or can be set obliquely or bent.

[0045] In the vertical direction, when the liquid level of the coolant in the kettle 2 is lower than the bottom of the corresponding pin 12, it means that the liquid level is lower than the preset liquid level height, and at this time, it can be identified by the set diagnostic circuit and an alarm is issued. That is to say, in the vertical direction, the horizontal height of the bottom of the pin 12 is also the preset liquid level height, so the liquid level of the coolant can be monitored.

[0046] It is understandable that if the warning lines of the coolant levels in different kettles 2 are different, the straight-line distance between the bottom of each pin 12 and the inner bottom wall of the housing 11 can be set to be different. This can be achieved by adjusting the length of the pin 12 itself, or the height of the corresponding kettle 2. The specific setting is not limited here. If the warning lines of the coolant levels in different kettles 2 are the same, the straight-line distance between the bottom of each pin 12 and the inner bottom wall of the housing 11 can be set to be the same.

[0047] Optionally, in one embodiment of the present disclosure, at least two kettles 2 are provided with mounting grooves 22 on their tops, the detection holes 21 are opened at the bottom of the mounting grooves 22, and the housing 11 is installed in the mounting grooves 22. The provided mounting grooves 22 can facilitate the installation of the housing 11 of the liquid level sensor 1, thereby avoiding increasing the height of the entire expansion tank and reducing space occupancy.

[0048] In some examples, the tops of at least two kettles 2 on one side close to each other are partially concave to form a mounting groove 22, so that after the shell 11 is installed in the mounting groove 22, the pins 12 can be easily inserted into the corresponding kettles 2.

[0049] Optionally, in one embodiment of the present disclosure, there are two kettles 2, which are arranged in parallel, and there are also two pins 12 of the liquid level sensor 1, which are respectively inserted into the two kettles 2. Of course, in other examples, there may be three or four kettles 2, and the number of pins 12 of the liquid level sensor 1 corresponds to the number of kettles 2. The liquid level sensor 1 may be located in the middle of the plurality of kettles 2, so that the pins 12 can be inserted into the corresponding kettles 2.

[0050] Optionally, in another embodiment of the present disclosure, the liquid level sensor 1 includes a main body and at least two detection floats, which are respectively placed in corresponding kettles 2. Wire holes may be provided on the kettle 2, and the main body is penetrated into the corresponding kettle 2 through the wire holes by wires and connected to the corresponding detection floats, thereby realizing liquid level detection of the coolant in the kettle 2.

[0051] Optionally, in one embodiment of the present disclosure, the liquid level sensor 1 is constructed as a probe-type liquid level sensor 1, and the integrated one-piece expansion water tank further includes a conductive member 3, and the two ends of the conductive member 3 are respectively connected to two adjacent kettles 2 to make the liquid in the two adjacent kettles 2 electrically conductive. The conductive member 3 can electrically connect the liquid in the two adjacent kettles 2 so that the liquid level sensor 1 can detect the liquid level, which can reduce the setting of the wiring harness for the electrical connection between the liquid level sensor 1 and the liquid in the kettle 2, and further improve the integration. In addition, the probe-type liquid level sensor 1 has high detection accuracy and is easy to assemble.

[0052] It should be noted that the liquid level sensor 1 is electrically connected to the liquid in one of the kettles 2 through a wiring harness, and the electrical connection of the coolant between adjacent kettles 2 can be achieved through the conductive member 3, and the conductive member 3 is mainly used to achieve electrical connection, and there is no physical connection, so it will not affect the state of the coolant between two adjacent kettles 2. The detection principle of the probe type liquid level sensor 1 is known and will not be elaborated here.

[0053] It can be understood that the conductive member 3 is kept in contact with the coolant in the two adjacent kettles 2, that is, in the height direction, the guide member is located below the low liquid level warning line of the coolant in the kettle 2, so that the liquid level detection can be guaranteed. In some examples, the conductive member 3 can be a metal member, which can be located at the bottom of the side where the two adjacent kettles 2 are close to each other, and can be close to the inner bottom of the two kettles 2.

[0054] Optionally, in another embodiment of the present disclosure, the liquid level sensor 1 may be configured as a static pressure liquid level sensor 1 .

[0055] Optionally, in one embodiment of the present disclosure, a connection hole 23 is provided at the bottom of the side where two adjacent kettles 2 are close to each other, the conductive member 3 is connected to the connection hole 23 and blocks the connection hole 23, and both ends of the conductive member 3 protrude from the opening of the connection hole 23. The provided connection hole 23 facilitates the installation of the conductive member 3, so that both ends of the conductive member 3 can extend into the two adjacent kettles 2 respectively.

[0056] The two ends of the conductive member 3 protrude from the opening of the connecting hole 23, that is, the length of the conductive member 3 is greater than the length of the channel of the connecting hole 23. In some examples, the conductive member 3 and the connecting hole 23 are interference-fitted, so that the conductive member 3 can completely close the connecting hole 23 to prevent the coolant in the two adjacent kettles 2 from being connected to each other. In other examples, a sealing ring can be provided on the hole wall of the connecting hole 23, and the conductive member 3 can pass through the sealing ring, so that the coolant in the two adjacent kettles 2 can also be prevented from being connected to each other.

[0057] Optionally, in one embodiment of the present disclosure, two adjacent kettles 2 include a first kettle body 24 and a second kettle body 25 , the first kettle body 24 and the second kettle body 25 are connected to each other, and pressure covers 4 are respectively provided on the first kettle body 24 and the second kettle body 25 .

[0058] Optionally, in one embodiment of the present disclosure, a connecting side plate 26 is provided between the first kettle body 24 and the second kettle body 25, and the first kettle body 24 and the second kettle body 25 have an open structure facing each other, and the first kettle body 24 and the second kettle body 25 are connected and closed by the connecting side plate 26.

[0059] The connecting side plate 26 is located between the first kettle body 24 and the second kettle body 25, that is, the first kettle body 24 and the second kettle body 25 share the connecting side plate 26, and the open structure of the first kettle body 24 and the second kettle body 25 is closed by the connecting side plate 26 to form a closed receiving chamber for receiving the coolant. In some examples, the top of the first kettle body 24 and the top of the second kettle body 25 are both opened, and the pressure cover 4 is connected to the opening.

[0060] Optionally, in one embodiment of the present disclosure, the connecting side plate 26 includes a first plate body 261 and two oppositely arranged second plate bodies 262, one end of each of the two second plate bodies 262 is connected to one end of the first plate body 261, and the connecting hole 23 is opened in the first plate body 261. By such a configuration, only one connecting hole 23 needs to be opened on the first plate body 261 to install the conductive member 3, thereby reducing the number of openings of the connecting hole 23. In other words, the first plate body 261 is reused, the first plate body 261 is a single plate, and after the conductive member 3 is connected to the connecting hole 23, the two ends of the conductive member 3 protrude from the opening of the connecting hole 23 and directly extend into the first pot body 24 and the second pot body 25.

[0061] Optionally, in one embodiment of the present disclosure, the first kettle body 24 and the second kettle body 25 each include a bottom plate, a top plate and at least two side plates, the top of each side plate is connected to the top plate, the bottom of each side plate is connected to the bottom plate, and two adjacent side plates are connected to each other to form a accommodating chamber with an open side through the bottom plate, the top plate and at least two side plates.

[0062] Optionally, in one embodiment of the present disclosure, the side panels and the connecting side panels 26 can be divided into an upper half and a lower half in the vertical direction, and the upper half and the lower half can be spliced, so that the first kettle body 24 and the second kettle body 25 can be split in the vertical direction.

[0063] Optionally, in one embodiment of the present disclosure, a plurality of spaced connection ribs 263 are provided between the two second plates 262, and the connection ribs 263 are perpendicular to the second plates 262. The connection ribs 263 can be used to connect the two second plates 262, thereby improving the connection strength and the integrity.

[0064] Optionally, in another embodiment of the present disclosure, the connecting side plate 26 includes a third plate body, that is, only one third plate body may be provided to close the open structure. Of course, the connecting side plate 26 may also include two fourth plates, that is, the two fourth plates respectively close the open structures of the first kettle body 24 and the second kettle body 25, and the connecting holes 23 are provided on the two fourth plates.

[0065] Optionally, in another embodiment of the present disclosure, the first kettle body 24 and the second kettle body 25 both include a bottom plate, a top plate, and a plurality of side plates, the first kettle body 24 is surrounded by the corresponding bottom plate, top plate, and a plurality of side plates to form a closed accommodating chamber, and the second kettle body 25 is surrounded by the corresponding bottom plate, top plate, and a plurality of side plates to form another closed accommodating chamber. In other words, the first kettle body 24 and the second kettle body 25 have no common structure, and the two can be arranged side by side.

[0066] A second aspect of the present disclosure further provides a thermal management system, comprising the above-mentioned integrated one-piece expansion water tank.

[0067] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned integrated one-piece expansion water tank, or the above-mentioned thermal management system.

[0068] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0070] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An integrated one-piece expansion water tank, characterized in that: including a liquid level sensor and at least two kettles; At least two of the kettles are connected to each other, the liquid level sensor is connected to at least two of the kettles, the liquid level sensor has at least two detection ends, the detection ends correspond to the kettles one by one, and each detection end is connected to the corresponding kettle.

2. The integrated one-piece expansion water tank according to claim 1, characterized in that: A detection hole is provided on one side of at least two kettles close to each other, and the liquid level sensor includes a shell and at least two pins, wherein the pins are arranged as the detection ends, one end of the pins is connected to the shell, and the other end of the pins passes through the detection hole and is inserted into the corresponding kettle.

3. The integrated one-piece expansion water tank according to claim 2, characterized in that: The detection hole is located at the top of the corresponding kettle, the top of the pin is connected to the shell, the bottom of the pin is inserted into the kettle, and the straight-line distance between the bottom of each pin and the corresponding inner bottom wall of the kettle is the same or different.

4. The integrated one-piece expansion water tank according to claim 3, characterized in that: A mounting groove is arranged on the top of at least two of the kettles, the detection hole is opened at the bottom of the mounting groove, and the shell is installed in the mounting groove.

5. The integrated one-piece expansion water tank according to any one of claims 1 to 4, characterized in that: The liquid level sensor is constructed as a probe type liquid level sensor, and the integrated one-piece expansion water tank also includes a conductive member, and two ends of the conductive member are respectively connected to two adjacent kettles to make the liquids in the two adjacent kettles electrically conductive.

6. The integrated one-piece expansion water tank according to claim 5, characterized in that: A connecting hole is provided at the bottom of the side where two adjacent kettles are close to each other, the conductive member is connected to the connecting hole and blocks the connecting hole, and two ends of the conductive member protrude from the opening of the connecting hole.

7. The integrated one-piece expansion water tank according to claim 6, characterized in that: Two adjacent kettles include a first kettle body and a second kettle body, the first kettle body and the second kettle body are connected to each other, and pressure covers are respectively provided on the first kettle body and the second kettle body.

8. The integrated one-piece expansion water tank according to claim 7, characterized in that: A connecting side plate is provided between the first pot body and the second pot body. The first pot body and the second pot body have an open structure on one side facing each other. The first pot body and the second pot body are connected and the open structure is closed by the connecting side plate.

9. The integrated one-piece expansion water tank according to claim 8, characterized in that: The connecting side plate includes a first plate body and two second plate bodies arranged opposite to each other, one end of each of the two second plate bodies is connected to one end of the first plate body, and the connecting hole is opened in the first plate body.

10. The integrated one-piece expansion water tank according to claim 9, characterized in that: A plurality of spaced connection ribs are arranged between the two second plates.

11. A thermal management system, characterized in that: It comprises an integrated one-piece expansion water tank as claimed in any one of claims 1 to 10.

12. A vehicle, characterized in that: It comprises an integrated one-piece expansion water tank as claimed in any one of claims 1 to 10, or a thermal management system as claimed in claim 11.

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