Double-cavity water storage kettle
By designing a coolant filling port and a partition in the dual-chamber coolant reservoir of the car that can be filled simultaneously, the problem of needing to fill coolant separately in the prior art is solved, achieving efficient production and cost reduction.
Patent Information
- Application Number
- CN202520572058.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing dual-chamber coolant reservoirs for automobiles require vacuuming each coolant chamber separately when adding antifreeze, which prolongs production time, increases equipment investment costs, and is difficult to operate.
A dual-chamber coolant reservoir is designed with coolant filling ports that can communicate with the two coolant chambers separately. A partition is provided on the reservoir cap so that the filling ports are isolated from each chamber after the cap is closed. Combined with a sealing core and a sealing ring, the independence of the chambers is achieved. Coolant can be filled simultaneously using a single filling gun.
It enables simultaneous filling of two coolant chambers, improving production efficiency, reducing production costs and equipment investment, simplifying operation, and lowering product costs.
Smart Images
Figure CN223767602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive component structural design technology, specifically to a dual-chamber water tank. Background Technology
[0002] The automotive coolant reservoir is a component of the vehicle's cooling system. Its main function is to circulate coolant to the battery pack, electric drive system, or engine, while also venting gases from the cooling system. A dual-chamber coolant reservoir integrates two coolant chambers, each capable of independent operation. The dual-chamber design effectively reduces the number of automotive components and minimizes space requirements in the engine compartment. However, in traditional dual-chamber reservoir designs, each coolant chamber typically has its own separate reservoir cap. Although interchangeable caps are designed to be identical, this presents challenges in actual production line operation. Specifically, during the antifreeze coolant filling process, each coolant chamber needs to be vacuumed, which not only extends production time but also requires additional equipment investment to simultaneously fill both chambers, increasing overall costs. Furthermore, the limited space between the two caps restricts the flexibility of the filling gun and increases operational difficulty.
[0003] Therefore, it is necessary to improve the design of the existing dual-chamber coolant reservoir in automobiles to facilitate the filling of antifreeze coolant, improve production efficiency, and thus reduce production costs. Utility Model Content
[0004] In view of this, the purpose of this utility model is to provide a new dual-chamber automotive coolant reservoir, which facilitates the filling of antifreeze coolant, improves production efficiency, and thus reduces production costs.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-chamber water tank, comprising a water tank body having a first coolant chamber and a second coolant chamber, wherein the first coolant chamber is provided with a first inlet and the second coolant chamber is provided with a second inlet, and the water tank body is provided with coolant filling ports that can communicate with the first inlet and the second inlet respectively; and further comprising a water tank cover disposed at the coolant filling port, wherein the water tank cover is provided with a partition portion that separates the first inlet and the second inlet after the water tank cover is closed in place.
[0006] Furthermore, the coolant filling port is located at the top of the reservoir body, and a coolant flow channel extends downward from the coolant filling port to form a coolant flow channel. The first and second inlets are inlet holes located on the corresponding side walls of the coolant flow channel.
[0007] Furthermore, the water reservoir lid includes a lid body and a sealing core fixed to the bottom of the lid body. The sealing core is inserted into the coolant flow channel to form the partition.
[0008] Furthermore, the first liquid inlet and the second liquid inlet are staggered in the vertical direction. The sealing core is provided with a first sealing ring, which separates the first liquid inlet and the second liquid inlet when the reservoir cap is closed. The sealing core is also provided with a second sealing ring, which separates the upper liquid inlet from the coolant filling port when the reservoir cap is closed.
[0009] Furthermore, the lower part of the sealing core is provided with a first annular boss and a second annular boss. The first annular boss is provided with a first sealing ring mounting groove for installing the first sealing ring; the second annular boss is provided with a second sealing ring mounting groove for installing the second sealing ring.
[0010] Furthermore, the first liquid inlet and the second liquid inlet are arranged opposite to each other, and the sealing core is provided with a sealing sleeve. When the water tank lid is closed, the sealing sleeve seals the first liquid inlet and the second liquid inlet simultaneously.
[0011] Furthermore, the upper part of the sealing core and the coolant flow channel have an exhaust gap in the circumferential direction. The sealing core is provided with a hollow cavity communicating with the exhaust gap. The top of the hollow cavity is provided with an exhaust one-way valve structure. The upper part of the first coolant chamber is provided with a first vent communicating with the exhaust gap, and the upper part of the second coolant chamber is provided with a second vent communicating with the exhaust gap.
[0012] Furthermore, a third sealing ring is provided at the location of the sealing core adjacent to the coolant filling port.
[0013] Furthermore, the water tank body includes an upper shell and a lower shell that are docked and fixed to form a first coolant chamber and a second coolant chamber.
[0014] Furthermore, the first coolant chamber and the second coolant chamber are separated by a partition plate, and the partition plate is provided with a heat insulation cavity.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] The dual-chamber coolant reservoir provided by this utility model facilitates the filling of antifreeze coolant, improves production efficiency, and thus reduces production costs. Specifically, this dual-chamber coolant reservoir can complete the vacuuming of two coolant chambers at once, and then simultaneously fill the first and second coolant chambers with coolant through the coolant filling port, effectively improving production efficiency. The partition designed on the reservoir cap ensures that the two coolant chambers work independently after the coolant filling is completed, without affecting each other. At the same time, only one filling gun is needed to fill the coolant in both coolant chambers at the same time, which helps to reduce the input of production costs. The filling gun has a large operating space, which is beneficial to the design and layout of the production line. In addition, this dual-chamber coolant reservoir only requires one reservoir cap, reducing the number of caps and thus helping to reduce the production cost of the product.
[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description
[0018] Figure 1 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;
[0019] Figure 2 This is a schematic diagram of the isometric structure of Embodiment 1 of this utility model;
[0020] Figure 3 This is an exploded structural diagram of Embodiment 1 of the present invention;
[0021] Reference numerals: 1-Water tank body; 1a-Upper shell; 1a1-Mounting lug; 1b-Lower shell; 101-First coolant chamber; 101a-First inlet; 101b-First vent; 102-Second coolant chamber; 102a-Second inlet; 102b-Second vent; 103-Coolant filling port; 103a-Coolant flow channel; 103a1-Exhaust gap; 104-Divider Partition plate; 104a-Insulation cavity; 2-Water reservoir lid; 201-Lid body; 202-Sealing core; 202a-First annular boss; 202a1-First sealing ring mounting groove; 202b-Second annular boss; 202b1-Second sealing ring mounting groove; 202c-Hollow cavity; 203-First sealing ring; 204-Second sealing ring; 205-Exhaust check valve structure; 206-Third sealing ring. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that in the following embodiments, the terms "first," "second," and "third" do not represent an absolute distinction in structure and / or function, nor do they represent a sequential execution order, but are merely for the convenience of description.
[0023] Example 1:
[0024] Please see Figure 1-3 This embodiment discloses a dual-chamber coolant reservoir, including a reservoir body 1 having a first coolant chamber 101 and a second coolant chamber 102. The first coolant chamber 101 has a first inlet 101a, and the second coolant chamber 102 has a second inlet 102a. The reservoir body 1 has a coolant filling port 103 that can communicate with the first inlet 101a and the second inlet 102a respectively. It also includes a reservoir cap 2 disposed at the coolant filling port 103. The reservoir cap 2 has a partition 2a that, when the reservoir cap 2 is closed, separates the first inlet 101a and the second inlet 102a. It is understood that the partition 2a is adapted to the specific arrangement and structure of the first inlet 101a and the second inlet 102a. The separation of the first inlet 101a and the second inlet 102a means that coolant cannot flow between them. Thus, after the reservoir lid 2 is closed, the first coolant chamber 101 and the second coolant chamber 102 form relatively independent chambers, preventing coolant from flowing between the two chambers and ensuring independent operation of each chamber. Of course, for a dual-chamber reservoir, the first coolant chamber 101 and the second coolant chamber 102 are each provided with corresponding outlets for connection to their respective cooling circuits. These features are consistent with existing dual-chamber reservoirs and will not be elaborated upon here.
[0025] The dual-chamber coolant reservoir described above facilitates the filling of antifreeze coolant, improving production efficiency and reducing production costs. Specifically, this dual-chamber coolant reservoir can use a filling gun to vacuum both coolant chambers at once, and then simultaneously fill the first coolant chamber 101 and the second coolant chamber 102 with coolant from the filling port, effectively improving production efficiency. The partition 2a designed on the reservoir cover 2 ensures that the two coolant chambers work independently after filling, without affecting each other. At the same time, only one filling gun is needed to fill the coolant in both coolant chambers at the same time, which helps reduce production costs. The filling gun has a large operating space, which is beneficial for the design and layout of the production line. In addition, this dual-chamber coolant reservoir only requires one reservoir cover 2, reducing the number of coveres and thus reducing the production cost of the product.
[0026] In this embodiment, the coolant filling port 103 is located at the top of the reservoir body 1, and a coolant flow channel 103a extends downward from the coolant filling port 103 to form a coolant flow channel 103a. The first inlet 101a and the second inlet 102a are inlet holes located on the corresponding side walls of the coolant flow channel 103a. It can be understood that the first inlet 101a is located on the side wall of the coolant flow channel 103a corresponding to the first coolant chamber 101, and the second inlet 102a is located on the side wall of the coolant flow channel 103a corresponding to the second coolant chamber 102. In this structural design, the coolant flow channel 103a on the reservoir body 1 allows for separate communication between the coolant filling port 103 and the first inlet 101a and the second inlet 102a. The overall structure of the flow channel is simple, ensuring the simplicity of the reservoir body structure, thereby facilitating product cost control.
[0027] In this embodiment, the coolant reservoir cap 2 includes a cap body 201 and a sealing core 202 fixed to the bottom of the cap body 201. The sealing core 202 is inserted into the coolant flow channel 103a to form a partition 2a. Specifically, the sealing core 202 is cylindrical, and the coolant flow channel 103a is a cylindrical structure. The cap body 201 can be kept with an existing automotive coolant reservoir cap and is generally connected to the coolant filling port 103 by a thread, which will not be described in detail here. The sealing core 202 is fixed to the cap body 201 as a whole. After opening the coolant reservoir cap 2, the sealing core 202 can be removed together with the cap body 201, and then the coolant can be added. After closing the coolant reservoir cap 2, the sealing core 202 can be used to block the first inlet 101a and the second inlet 102a, thus isolating the first inlet 101a and the second inlet 102a. The water tank lid 2 in this structural design has a simple overall structure and is easy to assemble and disassemble.
[0028] In this embodiment, the first liquid inlet 101a and the second liquid inlet 102a are in the vertical direction (see [reference]). Figure 1As shown in the diagram (vertical direction), the sealing core 202 is offset upwards and downwards. A first sealing ring 203 is provided on the sealing core 202. When the reservoir cap is closed, the first sealing ring 203 separates the first liquid inlet 101a and the second liquid inlet 102a. Specifically, the first sealing ring 203 is an O-ring rubber seal. The first sealing ring 203 ensures a good seal at the separation point between the first liquid inlet 101a and the second liquid inlet 102a. The good sealing effect of the sealing ring improves reliability, and the simple sealing structure helps control costs. A second sealing ring 204 is also provided on the sealing core 202. When the reservoir cap is closed, the second sealing ring 204 separates the upper liquid inlet of the first liquid inlet 101a and the second liquid inlet 102a from the coolant filling port 103. Specifically, the second liquid inlet 102a is located above the first liquid inlet 101a (in other embodiments, the first liquid inlet 101a can also be located above the second liquid inlet 102a); the second sealing ring 204 is an O-ring rubber sealing ring; the second sealing ring 204 ensures the sealing effect between the second liquid inlet 102a and the coolant filling port 103, improving reliability. In the above structural design, the staggered arrangement of the first liquid inlet 101a and the second liquid inlet 102a is ingenious, and the corresponding sealing rings ensure the sealing reliability of the corresponding parts, resulting in good reliability and facilitating the insertion and removal of the sealing core 202.
[0029] In this embodiment, combined with Figure 1 and Figure 3 The lower part of the sealing core 202 is provided with a first annular boss 202a and a second annular boss 202b. The first annular boss 202a is provided with a first sealing ring mounting groove 202a1 for installing the first sealing ring 203; the second annular boss 202b is provided with a second sealing ring mounting groove 202b1 for installing the second sealing ring 204. Of course, it can be understood that the first sealing ring 203 is installed in the first sealing ring mounting groove 202a1, and the second sealing ring 204 is installed in the second sealing ring mounting groove 202b1. The sealing ring mounting groove is provided to ensure the reliability of the installation of the corresponding sealing ring, and the annular boss is provided to reduce the contact area with the coolant flow channel 103a, thereby facilitating the assembly of the reservoir cap 2.
[0030] In this embodiment, the upper part of the sealing core 202 and the coolant flow channel 103a have an exhaust gap 103a1 in the circumferential direction. The sealing core 202 is provided with a hollow cavity 202c that communicates with the exhaust gap 103a1. An exhaust one-way valve structure 205 is provided on the top of the hollow cavity 202c. The upper part of the first coolant chamber 101 is provided with a first vent 101b that communicates with the exhaust gap 103a1. The upper part of the second coolant chamber 102 is provided with a second vent 102b that communicates with the exhaust gap 103a1. Specifically, the upper diameter of the sealing core 202 is smaller than the diameter of the coolant flow channel 103a. This creates an exhaust gap 103a1 between the sealing core 202 and the coolant flow channel 103a. Overpressured gas in the cooling circuits corresponding to the first coolant chamber 101 and the second coolant chamber 102 can be discharged into the hollow cavity 202c through the corresponding vents via the exhaust gap 103a1, and then discharged through the exhaust one-way valve structure 205. The exhaust one-way valve structure 205 can be a similar structure to the existing reservoir cap, which is existing technology and will not be described further here. It is understandable that the reservoir body has inlet holes corresponding to the two coolant chambers. Gas in the corresponding cooling circuit is discharged into the corresponding coolant chamber through the corresponding inlet holes. This part can be consistent with the existing dual-chamber reservoir structure and will not be elaborated further here. The exhaust structure in this design can complete the gas discharge from both coolant chambers, is simple in structure, and facilitates cost control.
[0031] In this embodiment, a third sealing ring 206 is provided at the location of the sealing core 202 adjacent to the coolant filling port 103; specifically, the third sealing ring 206 is an O-ring rubber sealing ring. The third sealing ring 206 helps ensure the sealing reliability of the sealing core 202 at the coolant filling port 103, has a simple structure, reduces the risk of gas leakage, and improves reliability.
[0032] In this embodiment, the water tank body 1 includes an upper shell 1a and a lower shell 1b that are docked and fixed to form a first coolant chamber 101 and a second coolant chamber 102. Specifically, the upper shell 1a and the lower shell 1b are respectively integrally formed and welded together. By adopting the docking and fixing of the upper shell 1a and the lower shell 1b, the production and processing of the water tank body 1 is facilitated, thereby facilitating cost control of the product.
[0033] In this embodiment, at least three mounting lugs 1a1 are provided along the circumferential direction on the upper housing 1a. Specifically, there are three mounting lugs 1a1, each with a mounting hole. The water tank body 1 can be fixedly installed to the vehicle body structure by bolts. The three mounting lugs 1a1 help ensure the installation stability of the water tank body 1, and the mounting lugs 1a1 on the upper housing 1a facilitate the arrangement and installation of the tank body in the engine compartment.
[0034] In this embodiment, the first coolant chamber 101 and the second coolant chamber 102 are separated by a partition plate 104, and the partition plate 104 is provided with a heat insulation cavity 104a. Specifically, the partition plate 104 includes an upper partition plate integrally formed with the upper shell 1a and a lower partition plate integrally formed with the lower shell 1b. After docking, the upper partition plate and the lower partition plate form a complete partition plate 104. The heat insulation cavity 104a can be a vacuum heat insulation cavity. This separation method has a simple structure and is conducive to product cost control. The heat insulation cavity 104a can reduce heat transfer between the first coolant chamber 101 and the second coolant chamber 102 during use, which helps to ensure that the independent working performance of each coolant chamber is not affected; at the same time, it is conducive to lightweight design.
[0035] Example 2:
[0036] The difference between this example and Embodiment 1 lies in the arrangement of the first liquid inlet 101a and the second liquid inlet 102a, as well as the sealing structure corresponding to the sealing core 202. Specifically, in this embodiment, the first liquid inlet 101a and the second liquid inlet 102a are arranged opposite to each other, and the sealing core 202 is provided with a sealing sleeve. The sealing sleeve simultaneously seals the first liquid inlet 101a and the second liquid inlet 102a when the reservoir cap 2 is closed. More specifically, the first liquid inlet 101a and the second liquid inlet 102a are located at the bottom of the coolant flow channel 103a, and the sealing sleeve is a rubber sleeve and is correspondingly fixed to the lower part of the sealing core 202. The first liquid inlet 101a and the second liquid inlet 102a being arranged opposite to each other means that the first liquid inlet 101a and the second liquid inlet 102a are at the same or approximately the same height. It should be noted that no separate drawing of Embodiment 2 is provided in the accompanying drawings, but those skilled in the art can clearly understand the technical solution adopted in this embodiment based on the drawings of Embodiment 1 and the textual description herein. In this structural design, the arrangement of the first liquid inlet 101a and the second liquid inlet 102a is simple, and the sealing structure is also simple.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A double-cavity water storage kettle characterized in that: it comprises a water storage kettle body (1) provided with a first cooling liquid cavity (101) and a second cooling liquid cavity (102), the first cooling liquid cavity (101) is provided with a first liquid inlet (101a), the second cooling liquid cavity (102) is provided with a second liquid inlet (102a), and the water storage kettle body (1) is provided with a cooling liquid filling opening (103) which can be communicated with the first liquid inlet (101a) and the second liquid inlet (102a) respectively; it further comprises a water storage kettle cover (2) arranged at the cooling liquid filling opening (103), and the water storage kettle cover (2) is provided with a blocking part (2a) which can block the first liquid inlet (101a) and the second liquid inlet (102a) after the water storage kettle cover (2) is closed in place.
2. The dual-chambered pitcher of claim 1, wherein: The cooling liquid filling opening (103) is arranged at the top of the water storage kettle body (1) and extends downward from the cooling liquid filling opening (103) to form a cooling liquid flow channel (103a), and the first liquid inlet (101a) and the second liquid inlet (102a) are liquid inlets arranged on the corresponding side walls of the cooling liquid flow channel (103a).
3. The dual-chambered pitcher of claim 2, wherein: The water storage kettle cover (2) comprises a kettle cover body (201) and a blocking core (202) fixedly arranged at the bottom of the kettle cover body (201), and the blocking core (202) is inserted into the cooling liquid flow channel (103a) to form the blocking part (2a).
4. The dual-chambered pitcher of claim 3, wherein: The first liquid inlet (101a) and the second liquid inlet (102a) are arranged in a staggered manner in the up-down direction, the blocking core (202) is provided with a first sealing ring (203), and the first sealing ring (203) can block the first liquid inlet (101a) and the second liquid inlet (102a) when the water storage kettle cover (2) is closed in place; The blocking core (202) is further provided with a second sealing ring (204), and the second sealing ring (204) can block the upper liquid inlet among the first liquid inlet (101a) and the second liquid inlet (102a) and the cooling liquid filling opening (103) when the water storage kettle cover (2) is closed in place.
5. The dual-chambered pitcher of claim 4, wherein: The lower part of the blocking core (202) is provided with a first annular boss (202a) and a second annular boss (202b), the first annular boss (202a) is provided with a first sealing ring mounting groove (202a1) for mounting the first sealing ring (203); and the second annular boss (202b) is provided with a second sealing ring mounting groove (202b1) for mounting the second sealing ring (204).
6. The dual-chambered pitcher of claim 3, wherein: The first liquid inlet (101a) and the second liquid inlet (102a) are arranged oppositely, the blocking core (202) is provided with a blocking sleeve, and the blocking sleeve can block the first liquid inlet (101a) and the second liquid inlet (102a) simultaneously when the water storage kettle cover (2) is closed in place.
7. The dual-chambered pitcher of claim 3, wherein: The upper part of the plugging core (202) is left with an exhaust gap (103a1) in the circumferential direction with the cooling liquid flow channel (103a), the plugging core (202) is provided with a hollow cavity (202c) in communication with the exhaust gap (103a1), the top of the hollow cavity (202c) is provided with an exhaust one-way valve structure (205), the upper part of the first cooling liquid chamber (101) is provided with a first exhaust hole (101b) in communication with the exhaust gap (103a1), and the upper part of the second cooling liquid chamber (102) is provided with a second exhaust hole (102b) in communication with the exhaust gap (103a1).
8. The dual-chambered pitcher of claim 7, wherein: The plugging core (202) is provided with a third sealing ring (206) adjacent to the cooling liquid filling port (103).
9. The dual-chambered pitcher of claim 1, wherein: The water storage kettle body (1) comprises an upper shell (1a) and a lower shell (1b) which are fixedly connected to form the first cooling liquid chamber (101) and the second cooling liquid chamber (102).
10. The dual-chambered pitcher of claim 1, wherein: The first cooling liquid chamber (101) and the second cooling liquid chamber (102) are separated by a partition plate (104), and the partition plate (104) is provided with a heat insulation cavity (104a).