Water tank liquid level detection device and vehicle-mounted liquid cooling device

Abstract

The utility model provides a water tank liquid level detection device and a vehicle-mounted liquid cooling device wherein a liquid level transmitter is installed on a water tank and is used for detecting the liquid level of the water tank; the liquid stabilizing plate is horizontally arranged in the water tank, and a plurality of liquid level sensors for sensing water flow are arranged on the liquid stabilizing plate; the driving assembly can drive the liquid stabilizing plate to move downwards to adjust the height. The controller controls the driving assembly to drive the liquid stabilizing plate to move when the liquid level transmitter detects the liquid level of the water tank, and the liquid stabilizing plate is stopped from being driven to move until all the liquid level sensors output sensing signals. According to the utility model, the liquid stabilizing plate is additionally arranged in the water tank, so that the liquid stabilizing plate can move to the water surface to stabilize the liquid level when the vehicle-mounted liquid cooling equipment encounters a bumping condition in the use process, and the liquid level can be accurately detected by detecting the liquid level of the water tank; therefore, the problems that the low liquid level alarm of the water tank module is inaccurate, the alarm information is lagged, the actual liquid shortage of the water tank cannot be recognized in time and the like due to the bumping condition in the using process of the vehicle-mounted liquid cooling equipment can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted liquid cooling, in particular to a water tank liquid level detection device and a vehicle-mounted liquid cooling device. Background Technique

[0002] With the rapid development of modern electronic technology, vehicle-mounted special electronic equipment is becoming more and more highly integrated and large in power. As the power of electronic equipment increases, its heat loss also increases accordingly, and traditional air cooling is difficult to meet the current cooling requirements.

[0003] Currently, it is entering a period of transition from air cooling to liquid cooling. At present, more and more large vehicle-mounted special electronic equipment is equipped with special vehicle-mounted liquid cooling products, such as the cooling of power amplifiers on special equipment vehicles and the cooling of vehicle-mounted power supplies.

[0004] The vehicle-mounted liquid cooling device consists of a frame, a refrigeration module, a hydraulic module, a water tank module, and a control system; among them, the refrigeration module, the hydraulic module, and the water tank module are installed on the frame. The application scenarios of vehicle-mounted liquid cooling devices are complex. Due to the bumpy conditions encountered during the use of the water tank module, the low liquid level alarm of the water tank module is inaccurate and the alarm information is lagged, etc., and the actual liquid shortage situation of the water tank cannot be recognized in time, resulting in the failure to replenish the water tank in time and affecting the actual use of the unit. Content of the Utility Model

[0005] In order to solve the technical problem of inaccurate liquid level detection when the water tank shakes in the above-mentioned prior art, the utility model provides a water tank liquid level detection device and a vehicle-mounted liquid cooling device.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The utility model provides a water tank liquid level detection device, including:

[0008] A liquid level transmitter, installed on the water tank, for detecting the liquid level of the water tank;

[0009] A liquid stabilizing plate, horizontally arranged in the water tank, and a plurality of liquid level sensors for sensing water flow are arranged on the liquid stabilizing plate;

[0010] A driving component, driving the liquid stabilizing plate to move downward to adjust the height;

[0011] A controller, controlling the driving component to drive the liquid stabilizing plate to move until each liquid level sensor outputs an induction signal, then stopping driving the liquid stabilizing plate to move, and then controlling the liquid level transmitter to detect the liquid level of the water tank.

[0012] The water tank liquid level detection device further includes: a vibration monitoring module, installed on the water tank to obtain vibration signals, and the controller controls the driving component to move the liquid stabilizing plate after receiving the vibration signals.

[0013] Furthermore, a spring is connected between the upper surface of the liquid stabilizing plate and the inner wall of the top of the water tank, so that the liquid stabilizing plate can automatically reset after being driven.

[0014] Furthermore, the driving assembly includes: a magnetic regulation assembly arranged at the bottom of the water tank opposite to the liquid stabilizing plate. The controller changes the magnetic suction force of the magnetic regulation assembly by controlling the input current of the magnetic regulation assembly, and adsorbs the liquid stabilizing plate to descend to different heights.

[0015] In other embodiments, the driving assembly includes: a magnetic regulation assembly arranged at the top of the water tank opposite to the liquid stabilizing plate. The controller changes the magnetic repulsive force of the magnetic regulation assembly by controlling the input current of the magnetic regulation assembly, and pushes the liquid stabilizing plate to descend to different heights.

[0016] Preferably, the liquid stabilizing plate is square, and the liquid level sensors are arranged at the four corners of the liquid stabilizing plate.

[0017] The present utility model also provides a vehicle-mounted liquid cooling device, including the above-mentioned water tank liquid level detection device.

[0018] Furthermore, the vehicle-mounted liquid cooling device includes: a frame, a refrigeration module, a hydraulic module, a water tank and a control module installed on the frame.

[0019] The present utility model also provides a control method for a vehicle-mounted liquid cooling device, including the steps of:

[0020] Running the cooling mode of the internal heat source equipment,

[0021] Monitoring vibration signals through a vibration monitoring module. When the vibration monitoring module monitors vibration signals, controlling the driving assembly to drive the liquid stabilizing plate to move until each liquid level sensor outputs an induction signal, and then stopping driving the liquid stabilizing plate to move;

[0022] Controlling a liquid level transmitter to detect the water tank liquid level.

[0023] Furthermore, after performing the step of controlling the liquid level transmitter to detect the water tank liquid level, the method further includes the step of: controlling the driving assembly to power off.

[0024] Compared with the prior art, by adding a liquid stabilizing plate in the water tank module in the present utility model, when the vehicle-mounted liquid cooling equipment encounters bumps during use, the liquid stabilizing plate can move to the water surface to make the liquid surface stable, and then the water tank liquid level detection can accurately detect the liquid level, so as to solve the problems that the low liquid level alarm of the water tank module is inaccurate and the alarm information is lagged due to the bumps encountered during the use of the vehicle-mounted liquid cooling equipment, and the actual liquid shortage situation of the water tank cannot be recognized in time. Description of the Drawings

[0025] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a detection device in the prior art;

[0027] Figure 2 It is a semi-sectional view of a water tank in the embodiment of the present utility model;

[0028] Figure 3 It is a schematic structural diagram of a vehicle-mounted liquid cooling device in the embodiment of the present utility model;

[0029] Figure 4 It is a schematic side view of a vehicle-mounted liquid cooling device in the embodiment of the present utility model;

[0030] Figure 5 It is a flowchart in the embodiment of the present utility model.

[0031] 1. Frame;

[0032] 2. Hydraulic module;

[0033] 3. Refrigeration module;

[0034] 4. Water tank;

[0035] 5. Control system;

[0036] 41. Vibration monitoring module;

[0037] 42. Magnetic adjustment component;

[0038] 43. Liquid level transmitter;

[0039] 44. Liquid stabilizing plate;

[0040] 45. Spring. Detailed implementation manners

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clearly understood, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0042] The following details the principle and structure of the present utility model in conjunction with the drawings and embodiments.

[0043] Water tank water level sensors are mostly potentiometric water level sensors, float water level sensors, reed switch water level sensors and capacitive water level sensors, etc. However, the potentiometric water level sensor is a stepped water level sensor, which cannot continuously and accurately measure the water level in the water tank, and the detection points are limited. If the detection points are increased, the volume needs to be increased, occupying the water tank space; the float water level sensor monitors the water level through the float as the liquid level changes up and down, but during the driving process of the vehicle, this type of sensor is easily affected by the tilt and shaking of the water surface in the water tank.

[0044] In the prior art, in order to prevent the influence of water surface shaking, photoelectric detection with high detection cost is also used for detection. For example, patent number CN108120490A discloses a water tank water level detection device and method, such as Figure 1 As shown, it includes a hollow shell 11 and a detection signal controller 17, a sealing cover 12 and an exhaust hole 13 are arranged on the upper part of the hollow shell 11, a water hole 14 is opened at the bottom of the hollow shell 11, and a transmitting optical fiber 15 and a receiving optical fiber 16 are arranged axially on the inner wall of the hollow shell 1 in parallel with each other and with a certain gap, the output end of the detection signal controller 17 is connected to the transmitting optical fiber 15 through a light source 18, and the input end of the detection signal controller 17 is connected to the receiving optical fiber 16 through a photoelectric conversion module 19, and the transmitting optical fiber 15 and the receiving optical fiber 16 are bare optical fiber cores with the cladding and the coating removed.

[0045] After the device is inserted and fixed into the detection hole of the water tank, the shell can buffer the shaking to a certain extent, so that the device can monitor the water level on a relatively stable water surface, thereby improving the water level monitoring accuracy of the RV water tank. The exhaust hole 13 on the upper part of the empty shell 11 can ensure that the water level in the shell is at the same height as the actual water level in the water tank.

[0046] The usage scenarios of vehicle-mounted liquid cooling devices are complex. The water tank module may also encounter bumps during use, which may lead to inaccurate low liquid level alarms and delayed alarm information. The actual lack of liquid in the water tank may not be identified in time, resulting in the water tank not being replenished in time, affecting the actual refrigeration and cooling operation of the unit.

[0047] In this regard, Figure 2As shown in the figure, the present utility model proposes a water tank liquid level detection device, which specifically includes: a liquid level transmitter 43, a liquid stabilizing plate 44, a driving component, and a controller. Among them, the liquid level transmitter 43 is installed on the water tank and can detect the liquid level in the water tank. The liquid stabilizing plate 44 is arranged inside the water tank, can fit with the water surface of the water tank, and a plurality of liquid level sensors for sensing water flow are provided on the liquid stabilizing plate 44, which can reduce the shaking of the water in the water tank and facilitate the measurement of the liquid level. The driving component is installed on the water tank and is used to drive the liquid stabilizing plate 44 to move downward to adjust the height and fit with the liquid surface for liquid stabilization. Before the liquid level transmitter 43 detects the liquid level of the water tank, the controller controls the driving component to drive the liquid stabilizing plate 44 to move downward until it receives the induction signals output by each of the liquid level sensors, and then stops driving the liquid stabilizing plate 44 to move.

[0048] By adding the liquid stabilizing plate 44 in the water tank, when the vehicle-mounted liquid cooling device encounters bumps during use, the liquid stabilizing plate 44 can move to the water surface to make the liquid surface stable, and then the liquid level of the water tank can be accurately detected during the liquid level detection of the water tank, so as to solve the problems that the low liquid level alarm of the water tank module 4 is inaccurate and the alarm information is lagged during the use of the vehicle-mounted liquid cooling device, and the actual liquid shortage situation of the water tank cannot be recognized in time.

[0049] In a specific embodiment, the liquid level transmitter 43 is a float type water level sensor. After cooperating with the liquid stabilizing plate 44 to reduce the shaking of the water surface in the water tank, it can stably detect the water level of the water tank, improve the accuracy of detection, and the accessory cost is low.

[0050] In a specific embodiment, it further includes a vibration monitoring module 41. The vibration monitoring module 41 is installed on the water tank and is used to obtain vibration signals, and then controls the driving component to move the liquid stabilizing plate 44 downward after obtaining the vibration signals.

[0051] That is, if there is no obvious vibration, the liquid level of the water tank can be directly detected. If vibration occurs, then control the liquid stabilizing plate 44 to move downward to reduce the detection power consumption, avoid ineffective actions, and improve the detection efficiency.

[0052] In a specific embodiment, a spring 45 is connected between the upper surface of the liquid stabilizing plate 44 and the inner wall of the top of the water tank. After the liquid stabilizing plate 44 is driven downward, the driving component is powered off and can automatically reset.

[0053] Moreover, the spring 45 is flexibly connected to the liquid stabilizing plate 44. When the water surface shakes, by using the spring 45 as the connecting piece of the liquid stabilizing plate 44, the service life can be improved. If a rigid limiting form such as a slide rail is used, after multiple detections, due to the reaction force of the water surface, the connecting piece may become loose or damaged, resulting in the liquid stabilizing plate 44 losing the liquid stabilizing effect.

[0054] In a specific embodiment, the driving assembly includes: a magnetic adjustment assembly 42 disposed at the bottom of the water tank opposite to the liquid stabilizing plate 44. The controller changes the magnetic suction force of the magnetic adjustment assembly 42 by controlling the input current of the magnetic adjustment assembly 42, and adsorbs the liquid stabilizing plate 44 to descend to different heights.

[0055] The magnetic adjustment assembly 42 is specifically an electromagnet, and its magnetic force can be changed by changing the magnitude of the current. Disposing the magnetic adjustment assembly 42 at the bottom of the water tank can lower the center of gravity of the water tank and reduce the amplitude of the water tank shaking.

[0056] In other embodiments, the driving assembly includes: a magnetic adjustment assembly 42 disposed at the top of the water tank opposite to the liquid stabilizing plate 44. The controller changes the magnetic repulsive force of the magnetic adjustment assembly 42 by controlling the input current of the magnetic adjustment assembly 42, and pushes the liquid stabilizing plate 44 to descend to different heights.

[0057] Since the position of the top of the water tank is closer to the liquid stabilizing plate 44, by disposing the magnetic adjustment assembly 42 at the top, that is, disposing an electromagnet, it is easier to push the liquid stabilizing plate 44 downward to improve the liquid stabilizing efficiency.

[0058] In a specific embodiment, the liquid stabilizing plate 44 is square, and liquid level sensors are disposed at the four corners of the liquid stabilizing plate 44.

[0059] By disposing liquid level sensors at the four corners of the square liquid stabilizing plate 44, as long as induction signals are output from all four corners, the plate surface of the liquid stabilizing plate 44 must be in full contact with the water surface, and the liquid stabilizing effect has been achieved. Therefore, this structure is more convenient for detection.

[0060] As Figure 3 、 4 shown, the present utility model further provides a vehicle-mounted liquid cooling device, including the above-mentioned water tank liquid level detection device.

[0061] By adding a liquid stabilizing plate in the water tank module, when the vehicle-mounted liquid cooling equipment encounters bumps during use, the liquid stabilizing plate can move to the water surface to make the liquid surface stable, and then the water tank liquid level can be accurately detected during the water tank liquid level detection.

[0062] The vehicle-mounted liquid cooling device specifically includes: a frame 1, and a refrigeration module 3, a water tank, a hydraulic module 2, and a control module installed on the frame 1.

[0063] One end of the frame 1 is installed with the hydraulic module 2, and the refrigeration module 3 is installed near both sides, which is convenient for the refrigeration module 3 to exchange heat through air intake. The water tank is disposed between the refrigeration modules 3. The control system 5 is disposed near the water tank and is installed at the other end of the frame 1. Specifically, it is installed in an electric control box, and the door body of the electric control box is located at the other end position of the frame 1, which is convenient for the control personnel to open the door body of the electric control box to operate the control system 5.

[0064] As shown Figure 5 , the present utility model also proposes a control method for an on-vehicle liquid cooling device, including the steps of:

[0065] The on-vehicle liquid cooling device operates in the internal heat source equipment cooling mode, that is, cools the heat sources on the vehicle, such as the engine, the cockpit, etc.;

[0066] The vibration monitoring module monitors vibration signals. When the vibration monitoring module monitors vibration signals, it controls the driving component to drive the liquid stabilizing plate to move until each liquid level sensor outputs an induction signal, and then stops driving the liquid stabilizing plate to move;

[0067] Control the liquid level transmitter to detect the water tank liquid level.

[0068] That is, when operating in the internal heat source equipment cooling mode, the vibration monitoring module monitors vibration signals to determine whether the liquid stabilizing plate needs to move downward for liquid stabilization, so as to avoid inaccurate low liquid level alarms and lagging alarm information of the water tank module caused by bumps during the use of the on-vehicle liquid cooling equipment, and to fail to timely identify the actual liquid shortage situation of the water tank.

[0069] When the on-vehicle liquid cooling device is in the external heat source equipment cooling mode, that is, the device is in the external heat source equipment cooling mode and the vehicle is in a stationary state, the water tank in this mode is not affected by the external vibration environment, and the liquid level gauge can accurately read the water tank liquid level information. At this time, directly control the liquid level transmitter to detect the water tank liquid level, without the need to detect through the vibration monitoring module, reducing the detection power consumption.

[0070] Specifically, after executing the step of controlling the liquid level transmitter to detect the water tank liquid level, control the driving component to power off. The liquid stabilizing plate can automatically reset upward through the spring, reducing the detection power consumption.

[0071] The present utility model adds a liquid stabilizing plate in the water tank module. When the on-vehicle liquid cooling equipment encounters bumps during use, the liquid stabilizing plate can move to the water surface to make the liquid surface stable, and then accurately detect the liquid level during the water tank liquid level detection, so as to solve the problems of inaccurate low liquid level alarms and lagging alarm information of the water tank module caused by bumps during the use of the on-vehicle liquid cooling equipment, and to fail to timely identify the actual liquid shortage situation of the water tank.

[0072] It should be noted that the terms used above are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0073] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0074] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description. Without contrary explanations, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present utility model; the orientation words "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0075] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationships between a device or feature and other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0076] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above words have no special meanings. Therefore, they should not be construed as limiting the protection scope of the present utility model.

[0077] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A water tank liquid level detection device, characterized in that, Including: A liquid level transmitter, installed on the water tank for detecting the liquid level of the water tank; A liquid stabilizing plate, arranged inside the water tank, and a plurality of liquid level sensors for sensing water flow are arranged on the liquid stabilizing plate; A driving assembly for driving the liquid stabilizing plate to move downward to adjust the height; A controller for controlling the driving assembly to drive the liquid stabilizing plate to move until the driving of the liquid stabilizing plate stops when each of the liquid level sensors outputs an induction signal.

2. The water tank liquid level detection device according to claim 1, characterized in that, It further includes: A vibration monitoring module, installed on the water tank to obtain vibration signals, and the controller controls the driving assembly to move the liquid stabilizing plate after receiving the vibration signals.

3. The water tank liquid level detection device according to claim 1, characterized in that, A spring is connected between the upper surface of the liquid stabilizing plate and the inner wall of the top of the water tank, so that the liquid stabilizing plate can automatically reset after being driven.

4. The water tank liquid level detection device according to claim 3, characterized in that, The driving assembly includes: a magnetic adjustment assembly arranged at the bottom of the water tank opposite to the liquid stabilizing plate, and the controller changes the magnetic attraction force of the magnetic adjustment assembly by controlling the input current of the magnetic adjustment assembly to adsorb the liquid stabilizing plate to descend to different heights.

5. The water tank liquid level detection device according to claim 3, characterized in that, The driving assembly includes: a magnetic adjustment assembly arranged at the top of the water tank opposite to the liquid stabilizing plate, and the controller changes the magnetic repulsion force of the magnetic adjustment assembly by controlling the input current of the magnetic adjustment assembly to push the liquid stabilizing plate to descend to different heights.

6. The water tank liquid level detection device according to claim 1, characterized in that, The liquid stabilizing plate is square, and the liquid level sensors are arranged at the four corners of the liquid stabilizing plate.

7. An in-vehicle liquid cooling device, characterized in that, Including the water tank liquid level detection device according to any one of claims 2 to 6.

8. The vehicle-mounted liquid cooling device according to claim 7, characterized in that, The vehicle-mounted liquid cooling device includes: a frame, a refrigeration module, a hydraulic module, a water tank and a control module installed on the frame.

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