CN219638943U

CN219638943U - Expansion kettle

Info

Publication number: CN219638943U
Application number: CN202320304426.0U
Authority: CN
Inventors: 夏俊磊; 袁世达; 张事业; 黄帅; 李琦; 王旭
Original assignee: Zhejiang Zero Run Technology Co Ltd; Zhejiang Lingsheng Power Technology Co Ltd
Current assignee: Zhejiang Zero Run Technology Co Ltd; Zhejiang Lingsheng Power Technology Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-09-05
Anticipated expiration: 2033-02-22

Abstract

The utility model relates to an expansion kettle; firstly, the device consists of an upper shell and a lower shell, the upper shell and the lower shell are respectively divided into a plurality of upper chambers and a plurality of lower chambers by an upper heat insulation plate and a lower heat insulation plate, and then a plurality of integrated chambers are formed by connecting and combining the upper heat insulation plate and the lower heat insulation plate, so that a plurality of expansion kettles are highly integrated into one, and the occupied space of the device is reduced; secondly, the device is provided with an upper balance hole and a lower balance hole respectively for communicating the plurality of chambers, so as to play a role in balancing gas pressure and keeping the liquid level consistent; finally, the device is also provided with a multi-way interface which is communicated with the integrated cavity, so that the setting of an external interface is reduced, the purpose of reducing cost is realized, and the risk of leakage of the device is reduced due to the reduction of the connecting part of the expansion kettle and the external runner plate.

Description

Expansion kettle

Technical Field

The utility model relates to the technical field of cooling systems for electric automobiles, in particular to an expansion kettle.

Background

With the increasing popularity of new energy electric automobile, electric automobile heat management's research is receiving more attention, and current electric automobile heat management includes battery heat management, air conditioner heat management, and the automatically controlled heat management of motor, and its design needs to satisfy the heat demand distribution under each operating mode, so heat management system complexity is higher, and the spare part of heat management also increases greatly thereupon.

In order to reduce the space occupied by the parts, the pipeline cost and the risk of flow resistance and leakage caused by pipeline arrangement are reduced, and the development of highly integrated modules is increasingly trended; the expansion kettle has the functions of liquid storage, degassing, water supplementing, pressure balancing and the like in the system, so whether the expansion kettle is integrated in a thermal management integrated module becomes an important research point.

In the prior art, an independent expansion kettle is needed for a motor cooling water path, an air conditioner warm air water path and a battery compartment cooling water path to meet the expansion requirement of cooling water in a system, the integration degree of the expansion kettle is low, and the expansion kettle occupies the space of an automobile; or the expansion kettle is only designed to be integrated with the cavity, the external interfaces of the kettle are more, and the production cost is higher.

Disclosure of Invention

The utility model aims to provide an expansion kettle, which integrates a plurality of expansion kettles in a vehicle, reduces occupied space and reduces production cost.

The aim of the utility model can be achieved by the following technical scheme:

an expansion kettle, comprising;

an upper housing; the inner space of the upper shell is divided into a plurality of upper chambers through an upper heat insulating plate, an upper balance hole is formed in the upper heat insulating plate, the upper chambers are communicated through the upper balance hole, a filling opening is formed in the upper shell, and the filling opening is communicated with the upper chambers;

the inner space of the lower shell is divided into a plurality of lower chambers through a lower heat insulation plate, a lower balance hole is formed in the lower heat insulation plate, the lower chambers are communicated through the lower balance hole, the lower shell is provided with a multi-way interface, and the multi-way interface is communicated with all the lower chambers;

the upper heat insulation plate corresponds to the lower heat insulation plate in position, and the upper shell and the upper heat insulation plate are respectively connected with the lower shell and the lower heat insulation plate in a sealing way, so that a plurality of upper chambers are respectively communicated with a plurality of lower chambers to form a plurality of integrated chambers.

In one embodiment, two upper heat insulation plates are arranged between every two upper chambers, a space formed by the two upper heat insulation plates at intervals is an upper heat insulation cavity, the upper balance hole penetrates through the two upper heat insulation plates at intervals and the upper heat insulation cavity so as to be communicated with the two upper chambers, and the upper heat insulation cavity is not communicated with the upper balance hole;

two lower heat insulation plates which are arranged at intervals are arranged between every two lower chambers, a space formed between the two lower heat insulation plates at intervals is a lower heat insulation cavity, the lower balance hole penetrates through the two lower heat insulation plates which are spaced from each other and the lower heat insulation cavity so as to be communicated with the two lower chambers, and the lower heat insulation cavity is not communicated with the lower balance hole;

the upper heat insulation plates and the lower heat insulation plates are arranged at intervals in a position corresponding to that of the lower heat insulation plates, and the upper heat insulation plates and the lower heat insulation plates are connected in a sealing mode, so that the upper heat insulation cavity and the lower heat insulation cavity form a heat dissipation cavity.

In one embodiment, a plurality of upper reinforcing ribs are arranged in the upper chamber, upper circulation holes which are communicated with the spaces on two sides are formed in the upper reinforcing ribs, and the top edges of the upper circulation holes do not exceed the bottom edges of the upper balance holes;

the inside of lower cavity is provided with a plurality of lower strengthening ribs, set up the lower flow hole in intercommunication both sides space on the lower strengthening rib, go up the strengthening rib with the position of lower strengthening rib corresponds, just go up the strengthening rib with lower strengthening rib airtight connection.

In one embodiment, the cross-sectional area of the upper flow aperture is smaller than the cross-sectional area of the lower flow aperture.

In one embodiment, any one of the upper shell and the lower shell is provided with a lowest water level scale mark and a highest water level scale mark at the same time, and the highest water level scale mark does not exceed the bottom edge of the upper flow hole;

or, the lower shell is provided with the lowest water level scale mark, the upper shell is provided with the highest water level scale mark, and the highest water level scale mark is not more than the bottom edge of the upper flow hole.

In one embodiment, the upper shell is provided with a liquid level sensor, and the sensing end of the liquid level sensor is flush with the lowest water level scale line on the same horizontal plane.

In one embodiment, the cross-sectional area of the upper balancing hole is larger than the cross-sectional area of the lower balancing hole, the upper balancing hole is an elliptical hole, and the lower balancing hole is a circular hole.

In one embodiment, the integrated chamber comprises a warm air chamber, a battery chamber and a motor chamber, and the multi-way interface is a six-way interface, and the six-way interface is respectively communicated with the warm air chamber, the battery chamber and the motor chamber.

In one embodiment, the six-way interface includes a first inlet, a first outlet, a second inlet, a second outlet, a third outlet, and a second motor water outlet through-port;

the first inlet and the first outlet are communicated with the warm air chamber, the second inlet and the second outlet are communicated with the battery chamber, and the third outlet and the second motor water outlet through hole are communicated with the motor chamber.

In one embodiment, the lower shell is provided with a matching interface, and the matching interface comprises a first motor water outlet through hole and a third inlet;

the first inlet and the first outlet are communicated with the warm air chamber, the second inlet and the second outlet are communicated with the battery chamber, the third inlet and the third outlet are communicated with the motor chamber, and the first motor water outlet through hole is communicated with the second motor water outlet through hole.

The utility model provides an expansion kettle, which has the following beneficial effects: firstly, the device consists of an upper shell and a lower shell, the upper shell and the lower shell are respectively divided into a plurality of upper chambers and a plurality of lower chambers by an upper heat insulation plate and a lower heat insulation plate, and then a plurality of integrated chambers are formed by connecting and combining the upper heat insulation plate and the lower heat insulation plate, so that a plurality of expansion kettles are highly integrated into one, and the occupied space of the device is reduced; secondly, the device is provided with an upper balance hole and a lower balance hole respectively for communicating the plurality of chambers, so as to play a role in balancing gas pressure and keeping the liquid level consistent; finally, the device is also provided with a multi-way interface which is communicated with the integrated cavity, so that the setting of an external interface is reduced, the purpose of reducing cost is realized, and the risk of leakage of the device is reduced due to the reduction of the connecting part of the expansion kettle and the external runner plate.

Drawings

FIG. 1 is a schematic view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model in another view;

FIG. 3 is a schematic structural view of an upper housing according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a lower housing structure according to an embodiment of the utility model;

FIG. 5 is a schematic view showing the internal control structures of the upper and lower cases according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a six-way interface according to an embodiment of the utility model.

Reference numerals illustrate: 10. an upper housing; 11. an upper chamber; 12. an upper insulating chamber; 13. a filler neck; 101. a heat insulation plate is arranged; 102. an upper balance hole; 103. a reinforcing rib is arranged on the upper part; 104. an upper flow hole; 20. a lower housing; 21. a lower chamber; 22. a lower insulating chamber; 201. a lower heat insulation plate; 202. a lower balance hole; 203. a lower reinforcing rib; 204. a downflow hole; 30. a lowest water level scale mark; 31. the highest water level scale mark; 40. a liquid level sensor; 50. a mating interface; 60. a six-way interface; 601. a first inlet; 602. a first outlet; 603. a second inlet; 604. a second outlet; 605. a third outlet; 606. a water outlet through hole of the second motor; 607. a water outlet through hole of the first motor; 608. a third inlet; 70. a warm air chamber; 80. a battery chamber; 90. a motor chamber.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

The utility model provides an expansion kettle in certain embodiments, which comprises an upper shell 10 and a lower shell 20, wherein the inner space of the upper shell 10 is divided into a plurality of upper chambers 11 through an upper heat insulation plate 101, an upper balance hole 102 is formed in the upper heat insulation plate 101, the upper chambers 11 are communicated through the upper balance hole 102, the upper shell 10 is provided with a filling opening 13, and the filling opening 13 is communicated with the upper chambers 11;

the inner space of the lower shell 20 is divided into a plurality of lower chambers 21 by a lower heat insulation plate 201, a lower balance hole 202 is formed in the lower heat insulation plate 201, the lower chambers 21 are communicated by the lower balance hole 202, the lower shell 20 is provided with a multi-way interface, and the multi-way interface is communicated with the lower chambers 21;

the positions of the upper heat insulation board 101 correspond to those of the lower heat insulation board 201, and the upper housing 10 and the upper heat insulation board 101 are respectively connected with the lower housing 20 and the lower heat insulation board 201 in a sealing manner, so that a plurality of upper chambers 11 are respectively communicated with a plurality of lower chambers 21 to form a plurality of integrated chambers.

Referring to fig. 1, an upper case 10 and a lower case 20 are integrally injection-molded through two sets of injection molds, respectively, and then welded into an integrated expansion kettle by means of hot plate welding or ultrasonic welding. Firstly, the integrated expansion kettle can realize the cooling of a plurality of waterways in the automobile, so that the number of the expansion kettles in the automobile is reduced, and the production cost of the automobile is further reduced; secondly, the integrated expansion kettle can reduce the installation procedure and time in the vehicle assembly process, and can improve the production efficiency; finally, the integrated expansion kettle occupies a small area, and the internal space of the vehicle is increased.

Meanwhile, the integrated expansion kettle integrates the filling port 13 into one, only one pressure cover is needed for being connected with the filling port 13, so that the production cost can be reduced, the filling beat of the cooling liquid can be shortened, and the efficiency is improved.

Further, referring to fig. 2-5, the operational flow of the expansion kettle is: firstly, the user fills the coolant from the filler 13, when the coolant flows to the first lower chamber 21 under the action of gravity, the air pressure in the first integrated chamber formed by the first lower chamber 21 and the first upper chamber 11 is different from the air pressure in other integrated chambers, and at this time, air flows to other integrated chambers through the upper balancing hole 102 formed on the upper heat insulation plate 101, so that the air pressure balance in the expansion kettle can be realized.

Then, when the height of the cooling liquid in the first lower chamber 21 is flush with the lower balance hole 202 on the lower heat insulating plate 201 enclosing the first lower chamber 21, the cooling liquid can flow to the second lower chamber 21 through the lower balance hole 202 until the height of the cooling liquid is flush with the lower balance hole 202 on the lower heat insulating plate 201 enclosing the second lower chamber 21, and then the cooling liquid continues to flow to the third lower chamber 21, so that the cooling liquid reciprocates until the cooling liquid fills the lower chamber 21. In this process, when the air pressure above the liquid level of the expansion kettle is balanced, the lower balance hole 202 plays the role of a communicating vessel, so that the liquid level of the cooling liquid in the lower chamber 21 can be ensured to be consistent. The device can enable a user to more intuitively observe the liquid level of the expansion kettle and judge whether the liquid is deficient or not so as to conveniently and timely supplement the cooling liquid.

After the cooling liquid is filled in the expansion kettle, a user starts the automobile, and the internal cooling circulation starts to run. The expansion kettle is provided with a plurality of interfaces at the multi-way interface, every two interfaces are communicated with one integrated cavity, the interfaces corresponding to each integrated cavity are respectively an inlet and an outlet, cooling liquid in cooling circulation corresponding to each integrated cavity enters the kettle from the inlet of the integrated cavity, cooling liquid in the kettle is deaerated and supplemented in the kettle, and then cooling liquid in the integrated cavity flows out from the outlet and then continues to be cooled and circulated, so that the cooling kettle is reciprocated.

The setting of the multi-way interface reduces the expansion kettle and is connected with other parts in a matched manner on the premise of meeting the requirements of degassing and water supplementing of each cooling cycle of the automobile, so that the consumption of the sealing ring used when the expansion kettle is connected with other parts is reduced, the expansion kettle is connected with other parts only through the multi-way interface, and only one sealing ring is used at the joint, so that the production and manufacturing cost can be reduced, the risk of exposing cooling liquid can be reduced, and the assembly efficiency of the expansion kettle and other parts can be improved.

In some embodiments, two upper heat insulation plates 101 are arranged between every two upper chambers 11, a space formed by the two upper heat insulation plates 101 at intervals is an upper heat insulation cavity 12, an upper balance hole 102 penetrates through the two upper heat insulation plates 101 and the upper heat insulation cavity 12 which are spaced from each other so as to be communicated with the two upper chambers 11, and the upper heat insulation cavities 12 and the upper balance hole 102 are not communicated with each other; two lower heat insulation plates 201 which are arranged at intervals are arranged between every two lower chambers 21, a space formed between the two lower heat insulation plates 201 at intervals is a lower heat insulation cavity 22, a lower balance hole 202 penetrates through the two lower heat insulation plates 201 and the lower heat insulation cavity 22 which are spaced from each other so as to be communicated with the two lower chambers 21, and the lower heat insulation cavities 22 and the lower balance hole 202 are not communicated with each other; the upper heat insulation plate 101 and the lower heat insulation plate 201 which are arranged at intervals are corresponding in position and are connected in a sealing way, so that the upper heat insulation cavity 12 and the lower heat insulation cavity 22 form a heat dissipation cavity.

In this embodiment, the upper heat insulating plate 101 and the lower heat insulating plate 201 are disposed at intervals, or the heat dissipation chamber formed by adopting the double heat insulating plate design has the following advantages. Firstly, the strength of the expansion kettle can be improved through the arrangement of the double plates, each integrated cavity corresponds to different cooling circulation systems, then the heat generated by the cooling liquid in the circulation process is different, the heat dissipation cavity can be designed to reduce the heat transfer between the integrated cavities in the expansion kettle, and the heat energy influence is minimized.

In some embodiments, a plurality of upper reinforcing ribs 103 are disposed inside the upper chamber 11, an upper circulation hole 104 communicating with the two side spaces is formed in the upper reinforcing ribs 103, the top edge of the upper circulation hole 104 does not exceed the bottom edge of the upper balance hole 102, a plurality of lower reinforcing ribs 203 are disposed inside the lower chamber 21, a lower circulation hole 204 communicating with the two side spaces is formed in the lower reinforcing ribs 203, the positions of the upper reinforcing ribs 103 and the lower reinforcing ribs 203 correspond, and the upper reinforcing ribs 103 and the lower reinforcing ribs 203 are connected in a sealing manner.

For the first time, the integrated chamber is divided into a plurality of gas tanks by the arrangement of the plurality of upper reinforcing ribs 103 and the plurality of lower reinforcing ribs 203, the gas tanks are mutually communicated by the arrangement of the upper circulation holes 104 and the lower circulation holes 204, the circulation direction of cooling liquid and gas can be determined by the gas tanks, the circulation path of the cooling liquid in the kettle can be increased by the lower circulation holes 204, so that the circulation time of the cooling liquid in the kettle can be increased, the degassing effect of the cooling liquid can be further improved, and the space pressure of the upper chamber 11 of the kettle can be quickly balanced by the arrangement of the upper circulation holes 104;

secondly, the design of the reinforcing ribs and the flow holes can also reduce the surge of the cooling liquid caused by the change of the speed of the automobile, and the running stability of the kettle is improved;

finally, the strength of the expansion kettle can be improved by the arrangement of the reinforcing ribs, the pressure bearing capacity of the expansion kettle is improved, and meanwhile, the thickness of the upper shell 10 and the thickness of the lower shell 20 can be reduced in the injection molding expansion kettle due to the existence of the reinforcing ribs, so that the weight of the expansion kettle can be reduced.

In some embodiments, the cross-sectional area of the upper flow aperture 104 is smaller than the cross-sectional area of the lower flow aperture 204.

In the practical use of the expansion kettle, the larger area of the lower flow hole 204 is beneficial to the circulation and circulation of the cooling liquid in the lower chamber 21, and meanwhile, in the process of filling the cooling liquid, the faster the flow speed liquid is, the more the cooling liquid filling time is effectively shortened, and the use efficiency is improved;

the upper flow holes 104 are used for ventilation, and the upper flow holes 104 with smaller areas are formed on the upper reinforcing ribs 103, so that the strength of the upper reinforcing ribs 103 can be ensured, and the rapid balance of the pressure of the inner space of the upper chamber 11 can be realized.

In some embodiments, any one of the upper casing 10 and the lower casing 20 is provided with a lowest water level scale line 30 and a highest water level scale line 31 at the same time, and the highest water level scale line 31 does not exceed the bottom edge of the upper flow hole 104; alternatively, the lower housing 20 is provided with the lowest water level graduation line 30, the upper housing 10 is provided with the highest water level graduation line 31, and the highest water level graduation line 31 does not exceed the bottom edge of the upper flow hole 104.

The arrangement of the lowest water level graduation marks 30 can enable a user to fill enough cooling liquid, so that the normal use of the expansion kettle is ensured; the arrangement of the highest water level graduation marks 31 prevents the user from filling too much coolant, affecting the effect of the upper chamber 11 on balancing the air pressure.

In some embodiments, the upper housing 10 is provided with a liquid level sensor 40, and the sensing end of the liquid level sensor 40 is flush with the lowest water level graduation mark 30 on the same horizontal plane.

The liquid level sensor 40 is arranged to enable a user to receive a liquid shortage alarm at the first time in the cab and to supplement liquid timely. In this embodiment, the liquid level sensor 40 may be a probe, and the upper case 10 is ultrasonically welded to the probe after injection molding is completed.

In some embodiments, the cross-sectional area of the upper balance apertures 102 is greater than the cross-sectional area of the lower balance apertures 202, and the upper balance apertures 102 are elliptical apertures and the lower balance apertures 202 are circular apertures.

The upper balance holes 102 with larger areas are arranged, so that the air pressure of each upper chamber 11 can be quickly balanced, the areas of the lower balance holes 202 are smaller, the communication between each lower chamber 21 can be realized, and a large amount of heat channeling of the expansion kettle in the use process can be avoided.

In some embodiments, referring to fig. 2 and 6, the integrated chamber includes a warm air chamber 70, a battery chamber 80, and a motor chamber 90, the multi-port interface employs a six-port interface 60, and the six-port interface 60 communicates with the warm air chamber 70, the battery chamber 80, and the motor chamber 90, respectively. The six-way interface 60 comprises a first inlet 601, a first outlet 602, a second inlet 603, a second outlet 604, a third outlet 605 and a second motor water outlet through-port 606;

the first inlet 601 and the first outlet 602 are communicated with the warm air chamber 70, the second inlet 603 and the second outlet 604 are communicated with the battery chamber 80, and the third outlet 605 and the third inlet 608 are communicated with the motor chamber 90;

the lower shell 20 is provided with a matching interface 50, and the matching interface 50 comprises a first motor water outlet straight-through port 607 and a third inlet 608; the third inlet 608 and the third outlet 605 are in communication with the motor chamber 90, and the first motor outlet through port 607 is in communication with the second motor outlet through port 606.

In this embodiment, referring to fig. 6, the functions of circulation of the cooling liquid, water replenishment and the like of the three chambers in the expansion kettle are realized only through the six-way interface 60 and the matching interface 50. The cooling liquid in the warm air chamber 70 enters the warm air chamber 70 through the first inlet 601 to carry out degassing, then flows out of the expansion kettle through the first outlet 602, and enters the warm air waterway of the automobile to carry out cooling circulation; the cooling liquid in the battery chamber 80 enters the battery chamber 80 through the second inlet 603 for degassing, then flows out of the expansion kettle through the second outlet 604, and enters a waterway of the automobile battery for cooling circulation; the cycling process of the motor chamber 90 is: the cooling liquid flows to the matching interface 50 and is divided into two paths, wherein a part of cooling liquid enters the motor cavity 90 from the third inlet 608, and then flows out to the motor circulation waterway from the third outlet 605 after circulation degassing is carried out in the motor cavity 90; another part directly flows from the first motor water outlet through port 607 of the matching interface 50 to the second motor water outlet through port 606 of the six-way interface 60, and the part does not enter the expansion kettle for circulation. The matching of the matching interface 50 and the six-way interface 60 can effectively reduce the circulation resistance of the cooling liquid in the motor chamber 90, and is beneficial to reducing the operation energy consumption of the water pump for cooling and circulating the motor.

Specifically, if the six-way interface 60 is not provided, and the degassing function of three chambers is required to be met, two interfaces are required to be communicated with the water side flow channel plate in each chamber, at least three two-way interfaces are required to be connected with the water side flow channel plate in the expansion kettle, the three interfaces are all designed by adopting an O-shaped ring radial seal, the fit clearance of each interface must ensure the compression ratio of the O-shaped ring to be 15% -30%, taking an O-shaped ring (commonly used and with larger line diameter) with the cross section diameter of 3.6mm as an example, the manufacturing tolerance of the O-shaped ring is not considered, and the allowable installation deviation (radial direction) of each interface is within 3.6mm×7.5% =0.27 mm. Beyond this value, one side of the O-ring will have a compression ratio greater than 30% and the other side will be less than 15% and will cause leakage; the expansion kettle and the water side runner plate are injection molding pieces, the materials are PP and PP-GF20 respectively, and the three interfaces are not integrated and at least 50mm (limited by the size of the matched interface of the water side runner plate) clearance between the two interfaces is required to be met. According to the tolerance level specified in GB/T14486-2008 plastic molding part dimensional tolerance, the high-precision tolerance level of the expansion kettle of the PP material is MT4, the high-precision tolerance level of the water side runner plate of the PP-GF20 material is MT2, and the three interfaces belong to the part affected by the movable part of the mold, so that the tolerance of class b corresponds. The tolerance of the corresponding position of the nearest two interfaces of the kettle is 0.68mm, and the corresponding tolerance of the nearest two interfaces of the water side runner plate is 0.36mm. Even without regard to the cumulative tolerance of the two parts mating, the minimum injection molding tolerance of any part exceeds the limit of 0.27 mm. In summary, the scheme of connecting the expansion kettle and the water side runner plate has natural design defects, and the expansion kettle in the device can overcome the defects. The six-way interface 60 and the runner plate are matched and sealed at one position, the axis of the six-way interface 60 is used as a positioning and assembling reference, the problem of poor position degree does not exist, the leakage risk is reduced to the minimum, the dosage of O-shaped rings can be reduced, and the assembly of the production line is more convenient.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

The foregoing description of the embodiments of the present utility model will be more fully understood with reference to the accompanying drawings. In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims

1. An expansion kettle, characterized in that: comprising the following steps:

an upper case (10); the inner space of the upper shell (10) is divided into a plurality of upper chambers (11) through an upper heat insulation plate (101), an upper balance hole (102) is formed in the upper heat insulation plate (101), the upper chambers (11) are communicated through the upper balance hole (102), a filling opening (13) is formed in the upper shell (10), and the filling opening (13) is communicated with the upper chambers (11);

the device comprises a lower shell (20), wherein the inner space of the lower shell (20) is divided into a plurality of lower chambers (21) through a lower heat insulation plate (201), a lower balance hole (202) is formed in the lower heat insulation plate (201), the lower chambers (21) are communicated through the lower balance hole (202), the lower shell (20) is provided with a multi-way interface, and the multi-way interface is communicated with all the lower chambers (21);

the upper heat insulation plate (101) corresponds to the lower heat insulation plate (201), the upper shell (10) and the upper heat insulation plate (101) are respectively connected with the lower shell (20) and the lower heat insulation plate (201) in a sealing mode, and a plurality of upper chambers (11) are respectively communicated with a plurality of lower chambers (21) to form a plurality of integrated chambers.

2. An expansion kettle according to claim 1, wherein: two upper heat insulation plates (101) which are arranged at intervals are arranged between every two upper chambers (11), a space formed by the two upper heat insulation plates (101) at intervals is an upper heat insulation cavity (12), the upper balance holes (102) penetrate through the two upper heat insulation plates (101) which are spaced from each other and the upper heat insulation cavity (12) so as to be communicated with the two upper chambers (11), and the upper heat insulation cavities (12) are not communicated with the upper balance holes (102);

two lower heat insulation plates (201) which are arranged at intervals are arranged between every two lower chambers (21), a space formed by the intervals between the two lower heat insulation plates (201) is a lower heat insulation cavity (22), the lower balance holes (202) penetrate through the two lower heat insulation plates (201) which are spaced from each other and the lower heat insulation cavity (22) so as to be communicated with the two lower chambers (21), and the lower heat insulation cavities (22) are not communicated with the lower balance holes (202);

the upper heat insulation plates (101) and the lower heat insulation plates (201) which are arranged at intervals are corresponding in position and are connected in a sealing mode, and therefore the upper heat insulation cavity (12) and the lower heat insulation cavity (22) form a heat dissipation cavity.

3. An expansion kettle according to claim 1, wherein: a plurality of upper reinforcing ribs (103) are arranged in the upper chamber (11), upper circulation holes (104) which are communicated with the two side spaces are formed in the upper reinforcing ribs (103), and the top edge of each upper circulation hole (104) does not exceed the bottom edge of each upper balance hole (102);

the inside of lower cavity (21) is provided with a plurality of lower strengthening ribs (203), lower circulation holes (204) in intercommunication both sides space have been seted up on lower strengthening rib (203), go up strengthening rib (103) with the position of lower strengthening rib (203) is corresponding, just go up strengthening rib (103) with lower strengthening rib (203) airtight connection.

4. An expansion jug according to claim 3, wherein: the cross-sectional area of the upper flow aperture (104) is smaller than the cross-sectional area of the lower flow aperture (204).

5. An expansion jug according to claim 3, wherein: the upper shell (10) and the lower shell (20) are provided with a lowest water level scale mark (30) and a highest water level scale mark (31) at the same time, and the highest water level scale mark (31) does not exceed the bottom edge of the upper flow hole (104);

or, the lower shell (20) is provided with a lowest water level scale mark (30), the upper shell (10) is provided with a highest water level scale mark (31), and the highest water level scale mark (31) does not exceed the bottom edge of the upper flow hole (104).

6. The expansion kettle of claim 5, wherein: the upper shell (10) is provided with a liquid level sensor (40), and the sensing end of the liquid level sensor (40) is flush with the lowest water level scale mark (30) on the same horizontal plane.

7. An expansion kettle according to claim 1, wherein: the cross-sectional area of the upper balance hole (102) is larger than that of the lower balance hole (202), the upper balance hole (102) adopts an elliptical hole, and the lower balance hole (202) adopts a circular hole.

8. An expansion kettle according to claim 1, wherein: the integrated cavity comprises a warm air cavity (70), a battery cavity (80) and a motor cavity (90), the multi-way interface adopts a six-way interface (60), and the six-way interface (60) is respectively communicated with the warm air cavity (70), the battery cavity (80) and the motor cavity (90).

9. The expansion kettle of claim 8, wherein: the six-way interface (60) comprises a first inlet (601), a first outlet (602), a second inlet (603), a second outlet (604), a third outlet (605) and a second motor water outlet through port (606);

the first inlet (601) and the first outlet (602) are communicated with the warm air chamber (70), the second inlet (603) and the second outlet (604) are communicated with the battery chamber (80), and the third outlet (605) and the second motor water outlet through hole (606) are communicated with the motor chamber (90).

10. An expansion jug according to claim 9, wherein: the lower shell (20) is provided with a matching interface (50), and the matching interface (50) comprises a first motor water outlet through hole (607) and a third inlet (608);

the third inlet (608) and the third outlet (605) are in communication with the motor chamber (90), and the first motor outlet through (607) is in communication with the second motor outlet through (606).