Water storage device

Abstract

The utility model provides a water storage device, which includes: a box body, having a first cavity, a water inlet is arranged on the top of the box body, and the water inlet is connected to the first cavity; a liquid level sensor is arranged on the side wall of the box body and is located outside the box body; a protective cover is arranged in the first cavity, the protective cover is arranged on the side wall, the protective cover and the side wall cooperate to form a second cavity, a circulation part is arranged at the bottom of the protective cover, the second cavity is connected to the first cavity through the circulation part, and the liquid level sensor is used to detect the liquid level in the second cavity. The technical solution provided by the utility model can solve the problem that the liquid level sensor is prone to false alarm in the water storage box structure in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of water storage equipment, in particular to a water storage device. Background Art

[0002] In the fuel cell system, not all the hydrogen entering the fuel cell stack can participate in the reaction. Some of the unreacted hydrogen will be mixed with the water produced by the stack reaction and discharged together. After the mixed gas passes through the gas-liquid separator, most of the liquid water in the mixed gas is separated by the gas-liquid separator, and the remaining mixed gas circulates into the stack to participate in the reaction again. The liquid water separated by the gas-liquid separator will flow into the water storage box below. A liquid level sensor is installed on the side of the water storage box to monitor the height of the liquid level in the water storage box in real time. When the liquid level reaches a certain height, the signal is fed back to the fuel cell control unit, and the fuel cell control unit controls the drain valve below the water storage box to open and discharge the liquid water.

[0003] In the existing technical solution, there is no structure inside the anode water storage box, or there are some vertical baffles. Such a design will have the following problems: when the water collected in the water storage box does not reach the position detected by the gas-liquid separator, the liquid level will fluctuate greatly with the shaking of the vehicle, or the liquid water will splash onto the wall surface where the liquid level sensor is located, thereby triggering the liquid level sensor and transmitting an erroneous signal. The above situation will cause the liquid level sensor to falsely report an erroneous signal, resulting in a false alarm of the liquid level sensor. Utility Model Content

[0004] The utility model provides a water storage device to solve the problem that the liquid level sensor in the prior art is prone to false alarm in the water storage box structure.

[0005] The utility model provides a water storage device, which comprises: a box body, which has a first cavity, a water inlet is arranged on the top of the box body, and the water inlet is communicated with the first cavity; a liquid level sensor is arranged on the side wall of the box body and is located on the outside of the box body; a protective cover is arranged in the first cavity, the protective cover is arranged on the side wall, the protective cover and the side wall cooperate to form a second cavity, a circulation part is arranged at the bottom of the protective cover, the second cavity is communicated with the first cavity through the circulation part, and the liquid level sensor is used to detect the liquid level in the second cavity.

[0006] Furthermore, a buffer is provided in the protective cover, the buffer is provided at the bottom of the second cavity, the buffer is located between the flow portion and the side wall, and the buffer can buffer the fluid entering the second cavity.

[0007] Furthermore, the buffer comprises a baffle having a straight section and a bent section connected in sequence, the straight section is arranged corresponding to the side wall, the bent section is located on the side of the straight section away from the side wall, and the straight section and the bent section are cooperatively arranged between the circulation part and the side wall.

[0008] Furthermore, the protective cover also includes a first side panel, two second side panels and a bottom plate, the first side panel is arranged toward the side wall, the two second side panels are respectively located at both ends of the first side panel, the bottom plate is located at the bottom of the first side panel and the second side panel, the first side panel and the two second side panels are arranged along the edge of the bottom plate, and the first side panel, the second side panel, the bottom plate and the side wall cooperate to form a second cavity.

[0009] Further, the circulation portion is located at one end of the bottom plate close to the first side plate, and there is a gap between the bent portion and the first side plate, so that the fluid can flow into the middle of the second cavity through the gap.

[0010] Furthermore, a through hole is provided at the bottom of the protective cover, and the through hole forms a circulation portion.

[0011] Furthermore, the protective cover has two through holes, both of which are located at one end of the bottom plate close to the first side plate, and one through hole is arranged close to one of the second side plates, and the other through hole is arranged close to the other second side plate. Two buffer members are arranged, and the two buffer members are arranged one-to-one corresponding to the two through holes.

[0012] Furthermore, the top of the protective cover has an opening, the water inlet is located above the protective cover, and the water storage device also includes a horizontal plate, which is located between the protective cover and the water inlet. The horizontal plate is arranged on the top of the protective cover to block the opening.

[0013] Furthermore, the top of the protective cover is connected to the horizontal plate, and the horizontal plate blocks the opening.

[0014] Furthermore, a slope is provided on one side of the bottom plate facing the second cavity, the slope is inclined toward the flow portion, and a height of the slope close to the side wall is higher than a height of the slope close to the flow portion.

[0015] By applying the technical solution of the utility model, the liquid level sensor is arranged on the side wall of the box body and is located on the outside of the box body, the protective cover is arranged on the side wall, the protective cover cooperates with the side wall to form a second cavity, a circulation part is arranged at the bottom of the protective cover, the second cavity is connected with the first cavity through the circulation part, and the liquid level sensor is used to detect the liquid level in the second cavity. Through the above arrangement, the liquid level sensor can detect the liquid level in the first cavity by detecting the liquid level in the second cavity, and when the box body shakes or water enters, the fluid in the first cavity will fluctuate, and at this time the protective cover will protect the side wall where the liquid level sensor is located, so as to reduce the possibility of the fluid splashing onto the side wall, thereby reducing the possibility of the liquid level sensor causing false alarms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 The schematic diagram of the structure of the water storage device provided by the utility model is shown;

[0018] Figure 2 Shows Figure 1 Sectional view at AA in the middle;

[0019] Figure 3 Shows Figure 2 A partial enlarged view of point B in the middle.

[0020] The above drawings include the following reference numerals:

[0021] 10. Box body;

[0022] 11. first cavity; 12. water inlet;

[0023] 13. Side wall;

[0024] 20. Liquid level sensor;

[0025] 30. Protective cover; 31. Second cavity;

[0026] 32. first side plate; 33. second side plate; 34. bottom plate;

[0027] 41. Through hole;

[0028] 50. Baffle;

[0029] 51, straight line segment; 52, curved segment;

[0030] 60. Horizontal board. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a water storage device, which includes: a box body 10, a liquid level sensor 20 and a protective cover 30. The box body 10 has a first cavity 11, and a water inlet 12 is arranged on the top of the box body 10, and the water inlet 12 is connected to the first cavity 11. The liquid level sensor 20 is arranged on the side wall 13 of the box body 10 and is located on the outside of the box body 10. The protective cover 30 is arranged in the first cavity 11, and the protective cover 30 is arranged on the side wall 13. The protective cover 30 cooperates with the side wall 13 to form a second cavity 31. The bottom of the protective cover 30 is provided with a circulation part, and the second cavity 31 is connected to the first cavity 11 through the circulation part. The liquid level sensor 20 is used to detect the liquid level in the second cavity 31. The liquid level sensor 20 is located in the area where the protective cover 30 is projected on the side wall 13.

[0033] According to the technical solution of the utility model, the liquid level sensor 20 is arranged on the side wall 13 of the box body 10 and is located on the outside of the box body 10, and the protective cover 30 is arranged on the side wall 13. The protective cover 30 cooperates with the side wall 13 to form a second cavity 31. A circulation part is arranged at the bottom of the protective cover 30. The second cavity 31 is connected with the first cavity 11 through the circulation part. The liquid level sensor 20 is used to detect the liquid level in the second cavity 31. Through the above arrangement, the liquid level sensor 20 can detect the liquid level in the first cavity 11 by detecting the liquid level in the second cavity 31, and when the box body 10 shakes or water enters, the fluid in the first cavity 11 will fluctuate. At this time, the protective cover 30 will protect the side wall 13 where the liquid level sensor 20 is located, so as to reduce the possibility of the fluid splashing onto the side wall 13, thereby reducing the possibility of the liquid level sensor 20 causing a false alarm. Among them, the material of the protective cover 30 can be plastic or metal, and can be fixedly connected to the box body 10 by thermoplastic or welding process.

[0034] In this embodiment, the liquid level sensor 20 may be a non-contact inductive sensor such as an ultrasonic liquid level sensor, a radar liquid level sensor or a capacitive liquid level sensor.

[0035] The circulation portion may be a circulation groove, a circulation hole, a circulation pipeline or other structures, as long as the fluid can flow between the first cavity 11 and the second cavity 31 .

[0036] Specifically, the type of the protective cover 30 is not limited, and can be a curved structure, a rectangular structure or other special structures, as long as it can be covered on the side wall 13. The material of the protective cover 30 can be plastic, and the processing technology can be injection molding, or metal material can be selected and welded.

[0037] Furthermore, a buffer is provided in the protective cover 30, and the buffer is provided at the bottom of the second cavity 31, and the buffer is located between the circulation portion and the side wall 13, and the buffer can buffer the fluid entering the second cavity 31. Through the above arrangement, the buffer can stop and buffer the fluid entering the second cavity 31 from the circulation portion, and while reducing the possibility of the fluid splashing on the side wall 13, the buffer can also reduce the kinetic energy of the fluid, avoid excessive fluctuations of the fluid in the second cavity 31, and further reduce the occurrence of false alarms of the liquid level sensor 20.

[0038] In this embodiment, the structure of the buffer is not limited, and it can be a columnar structure, a groove structure, a plate structure or a curved structure, as long as it can buffer the fluid and the fluid can flow through the buffer and contact the side wall 13.

[0039] like Figure 3 As shown, the buffer includes a baffle 50, and the baffle 50 has a straight section 51 and a bent section 52 connected in sequence. The straight section 51 is arranged corresponding to the side wall 13, and the bent section 52 is located on the side of the straight section 51 away from the side wall 13. The straight section 51 and the bent section 52 are arranged between the circulation part and the side wall 13. Through the above arrangement, the structure is simple, and it is convenient to process and produce. In addition, the straight section 51 and the bent section 52 can further buffer the fluid flowing into the second cavity 31 from the circulation part. The bent section 52 reduces the fluctuation range of the fluid after entering the second cavity 31 from the circulation part, thereby expanding the buffer range of the baffle 50, improving the buffer effect of the baffle 50, and further reducing the possibility of the fluid splashing onto the side wall 13, thereby reducing the possibility of false alarm of the liquid level sensor 20.

[0040] like Figures 1 to 3 As shown, the protective cover 30 further includes a first side plate 32, two second side plates 33 and a bottom plate 34. The first side plate 32 is arranged toward the side wall 13, the two second side plates 33 are respectively located at the two ends of the first side plate 32, the bottom plate 34 is located at the bottom of the first side plate 32 and the second side plate 33, the first side plate 32 and the two second side plates 33 are arranged along the edge of the bottom plate 34, and the first side plate 32, the second side plate 33, the bottom plate 34 and the side wall 13 cooperate to form a second cavity 31. Through the above arrangement, the second cavity 31 is surrounded by the side plates and the bottom plate 34, which can prevent the fluid in the first cavity 11 from flowing from the side plates of the protective cover 30 into the second cavity 31 when the fluid fluctuates, causing secondary fluctuations of the fluid in the second cavity 31. At the same time, the straight section 51 and the bent section 52 can form a semi-enclosed cavity with the first side plate 32, so as to further buffer and reduce the kinetic energy of the fluid entering the second cavity 31 from the circulation portion.

[0041] Among them, the circulation part is located at one end of the bottom plate 34 close to the first side plate 32, and there is a gap between the bent section 52 and the first side plate 32, and the fluid can flow into the middle of the second cavity 31 through the gap. Through the above arrangement, the fluid can flow through the gap to contact the side wall 13 after entering the second cavity 31, so that the liquid level sensor 20 can sense the fluid. At the same time, the gap is set on the side of the second cavity 31 away from the side wall 13, so that the fluid can be prevented from splashing directly from the gap to the side wall 13 after entering the second cavity, so that the fluid is in a relatively gentle flow state when it flows out of the gap.

[0042] In this embodiment, the interval between the bent section 52 and the first side plate 32 is not limited, and it is sufficient that the interval is smaller than the interval between the straight section 51 and the first side plate 32, and the fluid can pass through. The height of the buffer is not limited, and it is sufficient that the buffer can buffer the fluid. The specific height can be selected according to the actual working conditions, and can be selected to extend to one-quarter, one-half, or the same height of the first side plate 32.

[0043] Specifically, a through hole 41 is provided at the bottom of the protective cover 30, and the through hole 41 forms a circulation portion. Through the above arrangement, the circulation portion is arranged as the through hole 41, so that the structure is simple and easy to process.

[0044] In this embodiment, the through hole 41 is configured as a circular through hole, so that the buffer member can surround the through hole 41 easily.

[0045] In other embodiments of the present application, the through hole 41 may also be set to a square, a triangle or other irregular shapes. The shape and size of the through hole 41 may be selected according to actual working conditions.

[0046] like Figure 1 As shown, the protective cover 30 has two through holes 41, both of which are located at one end of the bottom plate 34 close to the first side plate 32, and one through hole 41 is arranged close to one of the second side plates 33, and the other through hole 41 is arranged close to the other second side plate 33. Two buffers are arranged, and the two buffers are arranged one by one with the two through holes 41. Through the above arrangement, the two through holes 41 are arranged close to the first side plate 32 and away from the side wall 13, so that the distance between the through holes 41 and the side wall 13 can be increased, and the situation that the fluid splashes onto the side wall 13 when flowing into the second cavity 31 from the through hole 41, causing the liquid level sensor 20 to misreport, can be further avoided. In addition, by setting two through holes 41, the flow rate of the second cavity 31 can be improved, and the excessive liquid level difference between the second cavity 31 and the first cavity 11 can be avoided, which causes the liquid level sensor 20 to be unable to quickly sense the liquid level in the first cavity 11, thereby improving the sensing accuracy of the liquid level sensor 20 to the liquid level in the first cavity 11.

[0047] In other embodiments of the present application, the number of through holes 41 can be set to three, four, six or other numbers.

[0048] like Figure 2 As shown, the top of the protective cover 30 has an opening, the water inlet 12 is located above the protective cover 30, and the water storage device also includes a horizontal plate 60, which is located between the protective cover 30 and the water inlet 12, and the horizontal plate 60 is arranged on the top of the protective cover 30 to block the opening. Through the above arrangement, when the water inlet 12 is located above the protective cover 30, the horizontal plate 60 can block the opening of the protective cover 30, so as to prevent the fluid from entering the first cavity 11 from the water inlet 12 and entering the second cavity 31 from the opening, thereby causing the fluid to splash onto the side wall 13, or flow down along the side wall 13, thereby causing the liquid level sensor 20 to misreport.

[0049] The top of the protective cover 30 is connected to the horizontal plate 60, and the horizontal plate 60 blocks the opening. Through the above arrangement, the blocking effect of the horizontal plate 60 on the fluid can be further improved, and the fluid is prevented from entering the second cavity 31 from the opening of the protective cover 30.

[0050] Furthermore, the transverse plate 60 may also be integrally formed with the protective cover 30 , so as to facilitate the disassembly, assembly and replacement of each component.

[0051] like Figure 3 As shown, a slope is provided on one side of the bottom plate 34 facing the second cavity 31, and the slope is inclined toward the flow portion, and the height of the slope close to the side wall 13 is higher than the height of the slope close to the flow portion. A water outlet is provided at the bottom of the box body 10, and a drain valve is provided at the water outlet. When the liquid level in the first cavity 11 reaches a preset liquid level, the drain valve needs to be opened to discharge the fluid from the box body 10 from the water outlet. Through the above arrangement, when drainage is required, the fluid will flow from the inclined slope on the bottom plate 34 to the flow portion, and the slope can guide the flow direction of the fluid, so that the discharge rate of the fluid can be increased, so that the fluid is quickly discharged or emptied from the second cavity 31, avoiding the accumulation of fluid in the second cavity 31.

[0052] Specifically, the water storage device of the present application is applied in a hydrogen fuel cell system, and the liquid water separated by the gas-liquid separator will flow into the water storage device provided by the present application. A liquid level sensor 20 is installed on the side wall of the water storage device for real-time monitoring of the height of the liquid level in the box body 10. When the liquid level reaches the height of the bottom plate 34 and continues to rise, the liquid water in the first cavity 11 will enter the second cavity 31 along the through hole 41 and reach the measuring wall surface on the side wall 13 corresponding to the liquid level sensor 20. When the liquid level reaches a certain height, the drain valve is opened, and the liquid water will flow out of the through hole 41 in the opposite direction under the action of gravity, ensuring that there is no liquid water in the interlayer to continue to interfere with the liquid level sensor 20. When the liquid level in the box body 10 shakes due to the shaking of the car, the liquid water in the first cavity 11 will not splash directly onto the side wall 13, but may only splash into the second cavity 31 of the protective cover 30 through the through hole 41, and will be blocked by the baffle 50 in the second cavity 31, which greatly reduces the possibility of liquid water splashing onto the side wall 13 and causing a false alarm of the liquid level sensor 20. At the same time, due to the presence of the horizontal plate 60, the liquid water flowing down from the water inlet 12 above the box body 10 cannot directly enter the second cavity 31 and cause a false alarm of the liquid level sensor 20.

[0053] The technical solution provided by this application has the following advantages:

[0054] 1. A protective cover is set inside the box to reduce the interference of fluid fluctuations on the liquid level sensor;

[0055] 2. A horizontal plate is provided on the top of the protective cover, so that a relatively closed structure is formed inside the protective cover;

[0056] 3. A through hole is set at the bottom of the protective cover to reduce the splashing of fluid to the side wall of the box body;

[0057] 4. A buffer plate is set inside the protective cover to reduce the impact of fluid splashing on the liquid level sensor.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0060] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0061] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0062] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0063] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water storage device, characterized in that: The water storage device comprises: A box body (10) having a first cavity (11), a water inlet (12) being arranged at the top of the box body (10), and the water inlet (12) being in communication with the first cavity (11); A liquid level sensor (20) is arranged on a side wall (13) of the box body (10) and is located outside the box body (10); A protective cover (30) is arranged in the first cavity (11). The protective cover (30) is arranged on the side wall (13). The protective cover (30) cooperates with the side wall (13) to form a second cavity (31). A circulation portion is arranged at the bottom of the protective cover (30). The second cavity (31) is connected to the first cavity (11) through the circulation portion. The liquid level sensor (20) is used to detect the liquid level in the second cavity (31).

2. The water storage device according to claim 1, characterized in that: A buffer is provided in the protective cover (30), the buffer is provided at the bottom of the second cavity (31), the buffer is located between the circulation portion and the side wall (13), and the buffer can buffer the fluid entering the second cavity (31).

3. The water storage device according to claim 2, characterized in that: The buffer member comprises a baffle (50), wherein the baffle (50) has a straight section (51) and a bent section (52) connected in sequence, wherein the straight section (51) is arranged corresponding to the side wall (13), and the bent section (52) is located on a side of the straight section (51) away from the side wall (13), and the straight section (51) and the bent section (52) are arranged in a coordinated manner between the circulation portion and the side wall (13).

4. The water storage device according to claim 3, characterized in that: The protective cover (30) further comprises a first side plate (32), two second side plates (33) and a bottom plate (34); the first side plate (32) is arranged toward the side wall (13); the two second side plates (33) are respectively located at two ends of the first side plate (32); the bottom plate (34) is located at the bottom of the first side plate (32) and the second side plate (33); the first side plate (32) and the two second side plates (33) are arranged along the edge of the bottom plate (34); the first side plate (32), the second side plate (33), the bottom plate (34) and the side wall (13) cooperate to form the second cavity (31).

5. The water storage device according to claim 4, characterized in that: The circulation portion is located at one end of the bottom plate (34) close to the first side plate (32), and there is a gap between the bent section (52) and the first side plate (32), and the fluid can flow into the middle of the second cavity (31) through the gap.

6. The water storage device according to claim 4, characterized in that: A through hole (41) is provided at the bottom of the protective cover (30), and the through hole (41) forms the circulation portion.

7. The water storage device according to claim 6, characterized in that: The protective cover (30) has two through holes (41), and the two through holes (41) are both located at one end of the bottom plate (34) close to the first side plate (32), and one through hole (41) is arranged close to one of the second side plates (33), and the other through hole (41) is arranged close to the other second side plate (33). Two buffer members are provided, and the two buffer members are arranged in a one-to-one correspondence with the two through holes (41).

8. The water storage device according to claim 1, characterized in that: The top of the protective cover (30) has an opening, and the water inlet (12) is located above the protective cover (30). The water storage device also includes a transverse plate (60), and the transverse plate (60) is located between the protective cover (30) and the water inlet (12). The transverse plate (60) is arranged on the top of the protective cover (30) to block the opening.

9. The water storage device according to claim 8, characterized in that: The top of the protective cover (30) is connected to the transverse plate (60), and the transverse plate (60) blocks the opening.

10. The water storage device according to claim 4, characterized in that: A slope is provided on one side of the bottom plate (34) facing the second cavity (31), the slope is inclined toward the flow portion, and the height of the slope close to the side wall (13) is higher than the height of the slope close to the flow portion.

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