Expansion water tank assembly and walking device

Abstract

The utility model provides an expansion water tank assembly and a walking device, and the expansion water tank assembly comprises a containing part and a sealing cover part, a plurality of accommodating cavities for storing cooling liquid are formed in the accommodating part; a liquid injection opening is formed in one side of the containing part, and each containing cavity can communicate with the outside through the liquid injection opening; the sealing cover part is arranged on the liquid injection opening and can seal the accommodating cavities respectively; a plurality of pressure valves are arranged on the sealing cover part and correspond to the containing cavities in a one-to-one mode. The multiple mutually-sealed and mutually-independent containing cavities are formed in the containing part to replace an original arrangement mode that multiple expansion water tanks operate separately, the occupied space during production and installation is reduced, the production cost is reduced, and light weight of production is guaranteed. Meanwhile, each containing cavity can be communicated with the outside through the liquid injection opening, so that the cooling liquid can be injected into the multiple containing cavities together through the single liquid injection opening during production, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal management systems for traveling devices, and particularly relates to an expansion water tank assembly and a traveling device. Background Art

[0002] In the cooling system of new energy vehicles, since the battery pack, motor, electronic control, engine and other equipment have different requirements for coolant temperature and system pressure, in general, in order to ensure the stable operation of the cooling system, it is necessary to build multiple independent cooling circuits.

[0003] The existing multiple independent cooling circuits are generally realized by separately setting up expansion water tanks. In actual application, multiple expansion water tanks can be used for battery cooling circuit, motor cooling circuit, electronic control cooling circuit and engine cooling circuit, etc. However, the above method uses multiple expansion water tanks, and each expansion water tank needs to be installed with an independent pressure cap. As a result, when the whole vehicle is produced, it is necessary to fill the multiple expansion water tanks with coolant at the coolant filling station, which is time-consuming and labor-intensive, affecting production efficiency. At the same time, it is necessary to reserve enough installation space for multiple expansion water tanks in advance, which makes the production cost high and greatly affects the lightweight.

[0004] Therefore, the existing construction of multiple independent cooling circuits not only affects production efficiency, but also increases production costs. Utility Model Content

[0005] In view of the above problems, the utility model proposes an expansion water tank assembly and a traveling device, wherein an expansion water tank assembly comprises:

[0006] A receiving portion, in which a plurality of receiving cavities for storing coolant are provided;

[0007] A liquid injection port is provided on one side of the accommodating portion, and each of the accommodating cavities can be connected to the outside through the liquid injection port;

[0008] A sealing portion, disposed on the liquid injection port, capable of sealing the plurality of accommodating chambers respectively;

[0009] The sealing cover is provided with a plurality of pressure valves, and the plurality of pressure valves are arranged in one-to-one correspondence with the plurality of accommodating chambers.

[0010] In some specific embodiments, the accommodation portion includes:

[0011] a shell having a hollow interior;

[0012] The partition is arranged in the shell so that the side wall of the partition and the inner wall of the shell enclose the accommodating cavity.

[0013] In some specific embodiments, a contact groove for receiving the cover portion is formed on the partition plate, and the contact groove is matched with the cover portion.

[0014] In some specific embodiments, the cover portion includes:

[0015] A pressure cover is detachably connected to the liquid injection port, and a plurality of pressure valves are arranged on the pressure cover;

[0016] A sealing member is disposed between the plurality of pressure valves and is used for abutting against the abutting groove.

[0017] In some specific embodiments, an embedding groove is provided on a side of the pressure cover close to the partition for embedding the sealing member.

[0018] In some specific embodiments, the sealing member comprises:

[0019] A sealing ring, sleeved on the pressure cover;

[0020] The sealing strip is arranged in the sealing ring and embedded in the embedding groove to abut against the abutting groove.

[0021] In some specific embodiments, there are multiple partitions, and the multiple partitions are cross-arranged so that the side walls of every two adjacent partitions can be combined with the side walls of the shell to form the accommodating cavity.

[0022] In some specific embodiments, the liquid injection port and the abutment groove are arranged opposite to each other.

[0023] In some specific embodiments, the housing is connected to a plurality of water inlets and a plurality of water outlets;

[0024] The multiple water inlets are arranged in one-to-one correspondence with the multiple accommodating cavities, and the multiple water outlets are also arranged in one-to-one correspondence with the multiple accommodating cavities.

[0025] A traveling device based on the same inventive concept comprises an expansion water tank assembly as described in any of the above specific embodiments.

[0026] The expansion water tank assembly of the utility model can divide the interior of the accommodating part into a plurality of mutually sealed and independent accommodating chambers by means of a sealing portion provided on the liquid injection port, and can make each accommodating chamber operate independently by means of a plurality of pressure valves provided on the sealing portion corresponding to the plurality of accommodating chambers one by one. By providing a plurality of mutually sealed and independent accommodating chambers in the accommodating part instead of the original arrangement in which a plurality of expansion water tanks operate separately, the occupied space during production and installation is greatly reduced, thereby reducing the production cost and ensuring lightweight production. At the same time, each accommodating chamber can be connected to the outside world through the liquid injection port, so that during production, the cooling liquid can be added to a plurality of accommodating chambers at the same time through a single liquid injection port, thereby improving production efficiency.

[0027] Since the traveling device of the utility model includes the above-mentioned expansion water tank assembly, it has the same beneficial effects as the above-mentioned expansion water tank assembly, and therefore, it will not be described in detail here.

[0028] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of an expansion water tank assembly in an embodiment of the utility model is shown;

[0031] Figure 2 The figure shows the internal schematic diagram of the expansion water tank assembly in the embodiment of the utility model;

[0032] Figure 3 A schematic diagram showing the connection between the cover portion and the accommodating portion in an embodiment of the utility model is shown;

[0033] Figure 4 A schematic diagram showing the sealing portion in an embodiment of the utility model

[0034] Figure 5 A schematic diagram of a sealing member in an embodiment of the utility model is shown.

[0035] In the figure, 100, the accommodating portion; 110, the shell; 111, the water inlet; 112, the water outlet; 120, the partition; 121, the abutting groove; 200, the sealing portion; 210, the pressure cover; 211, the pressure valve; 212, the embedding groove; 213, the annular groove; 220, the sealing member; 221, the sealing ring; 222, the sealing strip. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Reference Figure 1 The utility model provides an expansion water tank assembly, including: a containing part 100 and a sealing part 200. A plurality of containing chambers for storing coolant are provided inside the containing part 100. A liquid injection port is provided on one side of the containing part 100, and the liquid injection port is arranged between the plurality of containing chambers, so that each containing chamber can be connected with the outside through the liquid injection port. When the coolant needs to be added during the production process, it is only necessary to continuously input the coolant into the liquid injection port to fill the plurality of containing chambers with the coolant, and it is no longer necessary to add the coolant separately, which greatly improves the overall filling efficiency of the coolant, thereby improving the production efficiency. At the same time, the cover part 200 is covered on the liquid injection port, and the liquid injection port can be sealed by the cover part 200. At the same time, as the cover part 200 seals the liquid injection port, the cover part 200 can also isolate the multiple accommodating chambers from each other, so that the multiple accommodating chambers are sealed and independent of each other, and the gases in the multiple accommodating chambers and the injected coolant will not circulate with each other. In addition, the cover part 200 is provided with a plurality of pressure valves 211, and the plurality of pressure valves 211 are arranged one by one with the plurality of accommodating chambers. Each pressure valve 211 can adjust the pressure in the corresponding accommodating chamber, thereby ensuring that each accommodating chamber can operate independently with a separate cooling circuit, while greatly reducing the occupied space during production and installation, thereby reducing production costs and ensuring lightweight production.

[0038] In some specific embodiments of the present invention, refer to Figure 1The receiving portion 100 includes: a shell 110 and a partition 120. The shell 110 is hollow. The partition 120 is vertically arranged in the shell 110, and the side of the partition 120 is connected to the inner wall of the shell 110, so that the side walls on both sides of the partition 120 can be combined with the inner wall of the shell 110 to form two receiving cavities. The two receiving cavities are isolated by the partition 120, so that the coolants in the two receiving cavities can be prevented from flowing mutually.

[0039] Furthermore, the partition 120 is vertically arranged in the middle of the shell 110, so that the sizes of the two accommodating cavities enclosed by the side walls on both sides of the partition 120 and the inner wall of the shell 110 are equal, and the coolant stored in the two accommodating cavities can achieve similar cooling effects.

[0040] It should be noted that the partition 120 can also be vertically arranged on the left or right side of the middle part of the shell 110, so that the size of the two accommodating cavities enclosed by the side walls on both sides of the partition 120 and the inner wall of the shell 110 can be adjusted according to the setting position of the partition 120, so that the cooling effect of the coolant stored in the two accommodating cavities can match the cooling circuit during actual operation. The specific placement position of the partition 120 can be determined according to the needs of the specific cooling circuit to be connected.

[0041] In some specific embodiments of the present invention, refer to Figure 2 , abutment groove 121 for receiving the cover part 200 is provided on the top of the partition 120, and the abutment groove 121 is adapted to the cover part 200. By setting the abutment groove 121, the bottom of the abutment groove 121 can abut and fit with the side of the cover part 200 close to the partition 120, thereby reducing the gap size between the cover part 200 and the partition 120, improving the sealing between the multiple accommodating cavities, and ensuring the independence of each accommodating cavity. At the same time, when the cover part 200 has not yet been installed on the liquid injection port, the abutment groove 121 can form a concave structure on the top of the partition 120, thereby facilitating the filling of the multiple accommodating cavities with coolant.

[0042] In some specific embodiments of the present invention, refer to Figure 3 The sealing part 200 includes: a pressure cover 210 and a sealing member 220. The pressure cover 210 can be detachably connected to the liquid injection port, and a plurality of pressure valves 211 are arranged on the pressure cover 210. The sealing member 220 is arranged between the plurality of pressure valves 211, and the sealing member 220 is used to abut against the abutment groove 121. Since the plurality of pressure valves 211 are arranged in a one-to-one correspondence with the plurality of accommodating chambers, each pressure valve 211 can adjust the pressure in the corresponding accommodating chamber, so the sealing member 220 is arranged between the plurality of pressure valves 211, which can further improve the sealing between the plurality of pressure valves 211 or the plurality of accommodating chambers, and ensure the independence between each accommodating chamber.

[0043] Furthermore, the pressure cap 210 and the liquid injection port may be threadedly connected, thereby facilitating the removal of the pressure cap 210 relative to the liquid injection port.

[0044] In some specific embodiments of the present invention, refer to Figure 4 , an embedding groove 212 is provided on one side of the pressure cover 210 close to the partition 120, and the embedding groove 212 is used to embed the sealing member 220. Specifically, an embedding groove 212 is provided at the bottom of the pressure cover 210, and the embedding groove 212 is provided in accordance with the setting direction of the partition 120, and the sealing member 220 can be embedded in the embedding groove 212. When the pressure cover 210 is installed on the liquid injection port, the bottom of the pressure cover 210 can just abut against the bottom of the abutting groove 121 at the top of the partition 120, so that the sealing member 220 can be located between the bottom of the pressure cover 210 and the bottom of the abutting groove 121, further filling the gap between the pressure cover 210 and the partition 120, thereby fully ensuring the independence of each accommodating cavity.

[0045] Furthermore, the seal 220 is made of an elastic material. Due to the elastic properties of the seal 220, it is easier to fill the gap between the pressure cover 210 and the partition 120, further improve the sealing between the multiple accommodating cavities, and fully ensure the independence of each accommodating cavity.

[0046] Furthermore, the liquid injection port is opened at the top of the shell 110, so that the liquid injection port and the abutment groove 121 are arranged opposite each other, which is convenient for the installation of the pressure cover 210 and the installation of the seal 220 between the pressure cover 210 and the abutment groove 121, thereby ensuring the sealing performance of the seal 220.

[0047] In some specific embodiments of the present invention, refer to Figure 5 The sealing member 220 includes a sealing ring 221 and a sealing strip 222. The sealing ring 221 can be sleeved on the pressure cover 210. The sealing strip 222 is arranged in the sealing ring 221 and can be embedded in the embedding groove 212. The sealing strip 222 is used to abut against the abutting groove 121.

[0048] Specifically, an annular groove 213 is provided in the pressure cover 210 along the circumference of the pressure cover 210 and around the plurality of pressure valves 211, and the sealing ring 221 can be embedded and sleeved in the annular groove 213. The two ends of the embedding groove 212 are in communication with the two sides of the annular groove 213, and the two ends of the sealing strip 222 are also connected with the two sides of the sealing ring 221. When the sealing ring 221 is embedded and sleeved in the annular groove 213, the sealing strip 222 can be exactly embedded in the embedding groove 212. The structure is flexible and simple, which facilitates the installation of the sealing member 220. At the same time, under the restriction of the sealing ring 221, the stability of the sealing strip 222 in the embedding groove 212 can be strengthened, thereby ensuring the sealing between the plurality of accommodating cavities.

[0049] In some specific embodiments of the present invention, there are multiple partitions 120, and the multiple partitions 120 are arranged crosswise, so that the side walls of each two adjacent partitions 120 can be combined with the side walls of the shell 110 to form a receiving cavity. By changing the number of partitions 120, the number of receiving cavities can be increased or decreased.

[0050] It should be noted that since there is only one pressure cover 210, if multiple partitions 120 are set, there will be only one intersection point when the multiple partitions 120 intersect each other. Otherwise, it is difficult to use one pressure cover 210 to set multiple pressure valves 211 in one-to-one correspondence with multiple accommodating chambers.

[0051] Furthermore, the bottom of the pressure cover 210 is provided with a plurality of embedding grooves 212, which are arranged crosswise with each other, and there are also a plurality of sealing strips 222, which are arranged crosswise with each other, so that the plurality of sealing strips 222 can be correspondingly embedded in the plurality of embedding grooves 212. The opening form of the plurality of embedding grooves 212 corresponds to the crossing form of the plurality of partitions 120, so that a sealing strip 222 can be arranged between each partition 120 and the pressure cover 210, thereby ensuring the independence of the plurality of accommodating cavities, and avoiding the reduction of the sealing between the accommodating cavities due to the arrangement of too many partitions 120.

[0052] In some specific embodiments of the present invention, refer to Figure 1 The housing 110 is connected with a plurality of water inlets 111 and a plurality of water outlets 112. The plurality of water inlets 111 are arranged in one-to-one correspondence with the plurality of accommodating cavities, and the plurality of water outlets 112 are also arranged in one-to-one correspondence with the plurality of accommodating cavities. Each accommodating cavity can be connected to a separate cooling circuit through the correspondingly connected water inlet 111 and water outlet 112, so as to facilitate independent operation with the corresponding cooling circuit.

[0053] The utility model also provides a traveling device, including an expansion water tank assembly as described in any of the above-mentioned specific embodiments. Since the traveling device includes the above-mentioned expansion water tank assembly, the traveling device has the same beneficial effects as the above-mentioned expansion water tank assembly. By arranging a plurality of mutually sealed and independent accommodating chambers in the accommodating portion 100 to replace the original arrangement of multiple expansion water tanks operating separately, the occupied space during production and installation is greatly reduced, thereby reducing production costs and ensuring lightweight production. At the same time, each accommodating chamber can be connected to the outside world through a liquid injection port, so that during production, multiple accommodating chambers can be filled with coolant at the same time through a single liquid injection port, thereby improving production efficiency.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An expansion water tank assembly, characterized in that: include: A receiving portion, in which a plurality of receiving cavities for storing coolant are provided; A liquid injection port is provided on one side of the accommodating portion, and each of the accommodating cavities can be connected to the outside through the liquid injection port; A sealing portion, disposed on the liquid injection port, capable of sealing the plurality of accommodating chambers respectively; The sealing cover is provided with a plurality of pressure valves, and the plurality of pressure valves are arranged in one-to-one correspondence with the plurality of accommodating chambers.

2. The expansion tank assembly according to claim 1, characterized in that: The receiving portion comprises: a shell having a hollow interior; The partition is arranged in the shell so that the side wall of the partition and the inner wall of the shell enclose the accommodating cavity.

3. The expansion tank assembly according to claim 2, characterized in that: The partition plate is provided with an abutment groove for receiving the cover portion, and the abutment groove is matched with the cover portion.

4. The expansion tank assembly according to claim 3, characterized in that: The sealing portion comprises: A pressure cover is detachably connected to the liquid injection port, and a plurality of pressure valves are arranged on the pressure cover; A sealing member is disposed between the plurality of pressure valves and is used for abutting against the abutting groove.

5. The expansion tank assembly according to claim 4, characterized in that: An embedding groove is provided on one side of the pressure cover close to the partition plate for embedding the sealing member.

6. The expansion tank assembly according to claim 5, characterized in that: The sealing element comprises: A sealing ring, sleeved on the pressure cover; The sealing strip is arranged in the sealing ring and embedded in the embedding groove to abut against the abutting groove.

7. The expansion tank assembly according to claim 3, characterized in that: There are a plurality of partitions, and the plurality of partitions are cross-arranged so that the side walls of every two adjacent partitions can be combined with the side walls of the shell to form the accommodating cavity.

8. The expansion tank assembly according to any one of claims 3 to 7, characterized in that: The liquid injection port and the abutment groove are arranged opposite to each other.

9. The expansion water tank assembly according to any one of claims 2 to 7, characterized in that: The shell is connected with a plurality of water inlets and a plurality of water outlets; The multiple water inlets are arranged in one-to-one correspondence with the multiple accommodating cavities, and the multiple water outlets are also arranged in one-to-one correspondence with the multiple accommodating cavities.

10. A walking device, characterized in that: Comprising the expansion water tank assembly as described in any one of claims 1 to 9.

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