Solenoid valve failure detection device, wet film system and cooling unit

Abstract

The utility model discloses a solenoid valve fault detection device, wet membrane system and cooling unit, wherein, solenoid valve fault detection device includes: at least one current detection unit, and each current detection unit is configured to generate current detection signal according to the power supply current of one solenoid valve, wherein, current detection signal is greater than the power supply current, at least one prompting unit, and each prompting unit is connected with one current detection unit, and each prompting unit is configured to issue the prompt message in the case where corresponding current detection signal is greater than or equal to the preset current value, wherein, prompt message is used to show that corresponding solenoid valve works normally. The device detects and amplifies the power supply current of each solenoid valve through the current detection unit, obtains the current detection signal, and generates the prompt message according to the current detection signal through the prompting unit, so as to show the working state of the solenoid valve by the prompt message, and realizes the timely feedback of solenoid valve fault.

Description

Technical Field

[0001] This application relates to the field of fault detection technology, and in particular to a solenoid valve fault detection device, a wet film system, and a cooling unit. Background Technology

[0002] In related technologies, data centers have stringent temperature control requirements, and the stable and efficient operation of their cooling units is crucial for data center security. Data center cooling units typically employ technologies such as direct ventilation or indirect evaporative cooling, utilizing outdoor natural cold sources or wet film humidification / cooling. In wet film systems, solenoid valves are commonly used to control the flow of water. However, some low-current solenoid valves lack fault feedback functionality. When a solenoid valve malfunctions, it is difficult to locate the fault unless the corresponding water circuit fault is already very obvious. Therefore, solenoid valve faults cannot be reported in a timely manner. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the first objective of this invention is to provide a solenoid valve fault detection device. This device uses a current detection unit to detect and amplify the power supply current of each solenoid valve to obtain a current detection signal. A prompting unit then generates a prompt message based on the current detection signal to display the operating status of the solenoid valve. Users can determine whether a solenoid valve has malfunctioned based on the prompt message, thus achieving timely feedback on solenoid valve faults.

[0004] The second objective of this invention is to provide a wet film system.

[0005] The third objective of this invention is to provide a cooling unit.

[0006] To achieve the above objectives, a solenoid valve fault detection device is proposed according to a first aspect of the present invention, comprising: at least one current detection unit, each current detection unit being configured to generate a current detection signal based on the power supply current of a solenoid valve, wherein the current detection signal is greater than the power supply current; at least one prompting unit, each prompting unit being connected to a current detection unit, each prompting unit being configured to issue a prompting message when the corresponding current detection signal is greater than or equal to a preset current value, wherein the prompting message is used to indicate that the corresponding solenoid valve is working normally.

[0007] The solenoid valve fault detection device according to an embodiment of the present invention includes at least one current detection unit and at least one prompting unit. Each current detection unit is configured to generate a current detection signal based on the power supply current of a solenoid valve, wherein the current detection signal is greater than the power supply current. Each prompting unit is connected to a current detection unit, and each prompting unit is configured to issue a prompt message when the corresponding current detection signal is greater than or equal to a preset current value. The prompt message is used to indicate that the corresponding solenoid valve is working normally. Thus, by detecting and amplifying the power supply current of each solenoid valve through the current detection unit to obtain a current detection signal, and generating a prompt message through the prompting unit based on the current detection signal, the operating status of the solenoid valve is displayed using the prompt message. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, achieving timely feedback of solenoid valve faults.

[0008] According to one embodiment of the present invention, each current detection unit includes a current transformer, wherein the power supply line of each solenoid valve is wound multiple times on the corresponding current transformer so that the corresponding current transformer senses the corresponding power supply current, generates an induced current, and amplifies the induced current to generate a current detection signal.

[0009] According to one embodiment of the present invention, the number of turns of the power supply line of each solenoid valve on the corresponding current transformer is an integer greater than or equal to a preset value, wherein the preset value is the ratio of the preset current value to the power supply current.

[0010] According to one embodiment of the present invention, the power supply line for each solenoid valve is a live wire.

[0011] According to one embodiment of the present invention, each prompting unit is disposed on a corresponding current detection unit.

[0012] According to one embodiment of the present invention, each indicator unit includes an indicator light, which is connected to a current detection unit and is configured to light up when the corresponding current detection signal is greater than or equal to a preset current value.

[0013] According to one embodiment of the present invention, the preset current value is the minimum operating current of the indicator light.

[0014] To achieve the above objectives, a wet film system is provided according to a second aspect of the present invention, comprising: at least one solenoid valve, each solenoid valve being adapted to be connected to a power supply, each solenoid valve being configured to operate according to the power supply current provided by the power supply; and a solenoid valve fault detection device according to any of the preceding embodiments, the solenoid valve fault detection device being configured to generate a current detection signal according to the power supply current of each solenoid valve, and to issue a prompt message when at least one current detection signal is greater than or equal to a preset current value, wherein the current detection signal is greater than the power supply current, and the prompt message is used to indicate that the corresponding solenoid valve is operating normally.

[0015] According to the wet film system of this utility model embodiment, the power supply current of each solenoid valve is detected and amplified by the current detection unit to obtain the current detection signal, and the prompting unit generates a prompt message based on the current detection signal to display the working status of the solenoid valve. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve malfunction.

[0016] According to one embodiment of the present invention, the solenoid valve fault detection device and at least one solenoid valve are installed in different installation areas.

[0017] To achieve the above objectives, a cooling unit is provided according to a third aspect of the present invention, including the wet film system of any of the foregoing embodiments.

[0018] According to the embodiment of the present invention, the cooling unit detects and amplifies the power supply current of each solenoid valve through a current detection unit to obtain a current detection signal, and generates a prompt message based on the current detection signal through a prompt unit to display the working status of the solenoid valve. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve malfunction.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a solenoid valve fault detection device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a current detection unit according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a prompting unit according to an embodiment of the present utility model;

[0023] Figure 4This is an installation diagram of a current transformer and an indicator light according to an embodiment of the present invention;

[0024] Figure 5 This is a structural schematic diagram of a cooling unit according to an embodiment of the present invention. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] It should be noted that this application is based on the inventor's understanding and research into the following issues:

[0027] In related technologies, wet film systems typically use low-current solenoid valves. These valves have relatively low power, usually less than 5W, and their supply current is in the milliampere range. The remaining power of the solenoid valve, besides the driving power of the coil, is insufficient to drive the indicator light. Therefore, related technologies do not include fault detection devices for solenoid valves, resulting in the inability to provide feedback on faults in most cases. Consequently, when a solenoid valve malfunctions, it is usually not possible to cut off the power in time, which can lead to damage to other components in the system due to high current surges.

[0028] Based on this, embodiments of the present invention provide a solenoid valve fault detection device, a wet film system, and a cooling unit. The current detection unit detects and amplifies the power supply current of each solenoid valve to obtain a current detection signal. The prompting unit generates a prompt message based on the current detection signal to display the working status of the solenoid valve. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve faults.

[0029] The following description, with reference to the accompanying drawings, describes an embodiment of the solenoid valve fault detection device, wet film system, and cooling unit of the present invention.

[0030] Figure 1 This is a structural schematic diagram of a solenoid valve fault detection device according to an embodiment of the present invention. Figure 1 As shown, the solenoid valve fault detection device 100 includes at least one current detection unit 10 and at least one prompting unit 20.

[0031] Each current detection unit 10 is configured to generate a current detection signal based on the power supply current of a solenoid valve 200, wherein the current detection signal is greater than the power supply current; each prompting unit 20 is connected to a current detection unit 10, and each prompting unit 20 is configured to issue a prompt message when the corresponding current detection signal is greater than or equal to a preset current value, wherein the prompt message is used to indicate that the corresponding solenoid valve 200 is working normally.

[0032] Specifically, there is at least one solenoid valve 200, and each solenoid valve 200 is suitable for connection to a power supply. When the solenoid valve 200 is in the open state, if the solenoid valve 200 is working normally, the solenoid valve 200 and the power supply form a current loop, therefore, there is a supply current in the circuit; if the solenoid valve 200 malfunctions, the current loop formed by the solenoid valve 200 and the power supply is broken, and there is no supply current in the circuit. However, the solenoid valve 200 is a low-power solenoid valve, and the supply current is less than the preset current value. If the prompting unit 20 is directly connected to the solenoid valve 200, regardless of whether the solenoid valve 200 is working normally, the supply current will be less than the preset current value, so the prompting unit 20 will not issue a prompt message, and the user cannot know the working status of the solenoid valve 200 from the prompting unit 20. Therefore, by detecting the supply current and amplifying the detected current signal through the current detection unit 10, a current detection signal with a larger amplitude can be obtained. When the solenoid valve 200 is open and operating normally, the corresponding current detection signal is greater than or equal to the preset current value, and the prompting unit 20 issues a prompt message. When the solenoid valve 200 malfunctions, the current detection unit 10 cannot output a current detection signal, so the prompting unit 20 cannot issue a prompt message. Therefore, the user can determine whether the solenoid valve 200 has malfunctioned based on whether the prompting unit 20 issues a prompt message.

[0033] It should be noted that the current detection unit 10 and the prompting unit 20 are configured corresponding to the solenoid valve 200. When there is one solenoid valve 200, there is one current detection unit 10 and one prompting unit 20. When there are multiple solenoid valves 200, there are multiple current detection units 10 and multiple prompting units 20.

[0034] by Figure 1As shown in the example, when there are multiple solenoid valves 200, there are also multiple current detection units 10 and prompting units 20. The first current detection unit 10 detects the power supply current of the first solenoid valve 200 to obtain a first current detection signal. If the first current detection signal is greater than or equal to a preset current value, the first prompting unit 20 will issue a prompt message to inform the user that the first solenoid valve 200 is working normally. If the first current detection signal is less than the preset current value, the first prompting unit 20 will not issue a prompt message, and the user can then know that the first solenoid valve 200 has not malfunctioned. The working principle of the residual current detection unit 10 and the residual prompting unit 20 is the same as that of the first current detection unit 10 and the first prompting unit 20, and will not be described again here.

[0035] In the above embodiments, the current detection unit can not only detect the power supply current of the solenoid valve, but also amplify the detected current to obtain a current detection signal. The prompting unit issues a prompt message based on the current detection signal. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve malfunction and avoiding current surges to other components in the circuit.

[0036] In some embodiments, such as Figure 2 As shown, each current detection unit 10 includes a current transformer 11, wherein the power supply line of each solenoid valve 200 is wound multiple times on the corresponding current transformer 11 so that the corresponding current transformer 11 senses the corresponding power supply current, generates an induced current, and amplifies the induced current to generate a current detection signal.

[0037] Specifically, the current transformer 11 is a commonly used current detection device, and the current it carries can be amplified by winding it multiple times. Therefore, in order to amplify the power supply current of each solenoid valve 200, the power supply line of each solenoid valve 200 can be wound multiple times on the current transformer 11 of the corresponding current detection unit 10. In this way, when the corresponding current transformer 11 senses the corresponding power supply current, it can amplify the induced current to generate a current detection signal.

[0038] In the above embodiment, by utilizing the characteristics of a current transformer, the power supply line of the solenoid valve is wound multiple times on the current transformer to amplify the current without affecting the normal operation of the solenoid valve, thereby realizing the fault detection of the solenoid valve.

[0039] In some embodiments, the number of turns of the power supply line of each solenoid valve 200 on the corresponding current transformer 11 is an integer greater than or equal to a preset value, wherein the preset value is the ratio of the preset current value to the power supply current.

[0040] It is understandable that the number of turns of the power supply line on the corresponding current transformer 11 should be an integer greater than or equal to the ratio of the preset current value to the supply current. This ensures that the amplified supply current is greater than or equal to the preset current value, thereby ensuring that the prompting unit 20 can issue a prompt message when the solenoid valve 200 is working normally.

[0041] For example, assuming the power supply current of the solenoid valve 200 is 0.02A and the preset current value is 0.1A, and the ratio of the preset current value (0.1A) to the power supply current (0.02A) is 5, then the power supply line of the solenoid valve 200 needs to be wound at least 5 turns on the current transformer 11 to ensure that the prompting unit 20 can issue a prompt message when the solenoid valve 200 is working normally.

[0042] Optionally, in some embodiments, such as Figure 2 As shown, the power supply line for each solenoid valve 200 is the live wire L.

[0043] Specifically, each solenoid valve 200 is connected to the power supply via a live wire L and a neutral wire N. Because there is less noise on the live wire L, the live wire L of each solenoid valve 200 is wound multiple times on the corresponding current transformer 11 to obtain a more accurate current detection signal.

[0044] It should be noted that in practical applications, the neutral wire N of each solenoid valve 200 can also be wound multiple times on the corresponding current transformer 11. Users can choose according to the actual situation.

[0045] In some embodiments, such as Figure 3 and Figure 4 As shown, each indicator unit 20 includes an indicator light 21, which is connected to a current detection unit 10. The indicator light 21 is configured to light up when the corresponding current detection signal is greater than or equal to a preset current value.

[0046] Specifically, each prompting unit 20 includes an indicator light 21, therefore, the prompt message is the light of the indicator light 21. The power supply pin of the indicator light 21 can be connected to the corresponding current detection unit 10. When the current detection signal is greater than or equal to a preset current value, the indicator light 21 can light up and emit light. The user can determine whether the solenoid valve 200 has malfunctioned based on the light of the indicator light 21.

[0047] Optionally, the prompting unit 20 may also include an audio device, such as a buzzer. The audio device can issue an audio prompt message when the corresponding current detection signal is greater than or equal to a preset current value. The user can determine whether the solenoid valve 200 has malfunctioned based on the audio prompt message.

[0048] In some embodiments, the preset current value is the minimum operating current of the indicator light 21.

[0049] It is understandable that setting the preset current value to the minimum operating current of indicator light 21 ensures that indicator light 21 can be lit when solenoid valve 200 is working normally.

[0050] It should be noted that the brightness of indicator light 21 is positively correlated with the number of turns of the power supply line wound on the current transformer 11. That is, the more turns of the power supply line wound on the current transformer 11, the greater the amplitude of the current detection signal, and the brightness of indicator light 21 should reach a level that is visible to the naked eye.

[0051] In some embodiments, each prompting unit 20 is disposed on a corresponding current detection unit 10.

[0052] Specifically, the prompting unit 20 can be set on the corresponding current detection unit 10, so that the prompting unit 20 and the current detection unit 10 are essentially integrated together, thereby making the installation of the solenoid valve fault detection device 100 more convenient.

[0053] by Figure 3 and Figure 4 As shown in the example, when the current detection unit 10 includes a current transformer 11 and the indication unit 20 includes an indicator light 21, the indicator light 21 can be installed on the corresponding current transformer 11. Furthermore, since the current transformer 11 is a current sensing device, the current transformer 11 and the indicator light 21 do not need to be located near the solenoid valve 200, but rather located away from the solenoid valve 200 and close to the user's monitoring side, thus facilitating the user's observation of the indicator light 21.

[0054] In summary, the solenoid valve fault detection device according to this utility model embodiment includes at least one current detection unit and at least one prompting unit. Each current detection unit is configured to generate a current detection signal based on the power supply current of a solenoid valve, wherein the current detection signal is greater than the power supply current. Each prompting unit is connected to a current detection unit, and each prompting unit is configured to issue a prompt message when the corresponding current detection signal is greater than or equal to a preset current value. The prompt message is used to indicate that the corresponding solenoid valve is working normally. Thus, by detecting and amplifying the power supply current of each solenoid valve through the current detection unit to obtain a current detection signal, and by generating a prompt message through the prompting unit based on the current detection signal, the operating status of the solenoid valve is displayed using the prompt message. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, achieving timely feedback of solenoid valve faults.

[0055] Corresponding to the above embodiments, this utility model also proposes a wet film system. For example... Figure 1 As shown, the wet film system includes: at least one solenoid valve 200 and a solenoid valve fault detection device 100 of any of the preceding embodiments.

[0056] Each solenoid valve 200 is adapted to be connected to a power supply, and each solenoid valve 200 is configured to operate according to the power supply current provided by the power supply. The solenoid valve fault detection device 100 is configured to generate a current detection signal according to the power supply current of each solenoid valve 200, and issue a prompt message when at least one current detection signal is greater than or equal to a preset current value. The prompt message indicates that the corresponding solenoid valve 200 is working normally.

[0057] In the above embodiments, the power supply current of each solenoid valve is detected and amplified by the current detection unit to obtain a current detection signal. The prompting unit generates a prompt message based on the current detection signal to display the working status of the solenoid valve. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve malfunctions.

[0058] In some embodiments, the solenoid valve fault detection device 100 and at least one solenoid valve 200 are located in different installation areas.

[0059] Specifically, the solenoid valve 200 is used to control the opening and closing of the water circuit in the wet film system. Therefore, the solenoid valve 200 is usually installed on the water pipe. The humidity in this area is high, which can easily damage the solenoid valve fault detection device 100 and make it difficult for the user to observe. Therefore, the solenoid valve fault detection device 100 can be installed in a different installation area than the solenoid valve 200, such as closer to the user's monitoring side, so as to effectively protect the solenoid valve fault detection device 100 from environmental influences, ensure its long-term reliable operation, and facilitate user observation.

[0060] Furthermore, other components and functions of the wet film system in this embodiment are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

[0061] Corresponding to the above embodiments, this utility model also proposes a cooling unit. For example... Figure 5 As shown, the cooling unit 1000 includes the wet film system 300 of any of the foregoing embodiments.

[0062] According to the embodiment of the present invention, the cooling unit detects and amplifies the power supply current of each solenoid valve through a current detection unit to obtain a current detection signal, and generates a prompt message based on the current detection signal through a prompt unit to display the working status of the solenoid valve. The user can determine whether the solenoid valve has malfunctioned based on the prompt message, thus realizing timely feedback of solenoid valve malfunction.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0065] Furthermore, the terms "first," "second," etc., used in the embodiments of this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this utility model can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this utility model, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0066] In this utility model, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific implementation.

[0067] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A solenoid valve fault detection device, characterized in that, include: At least one current detection unit, each current detection unit being configured to generate a current detection signal based on the supply current of a solenoid valve, wherein the current detection signal is greater than the supply current; At least one prompting unit, each prompting unit being connected to a current detection unit, wherein each prompting unit is configured to issue a prompting message when the corresponding current detection signal is greater than or equal to a preset current value, wherein the prompting message is used to indicate that the corresponding solenoid valve is working normally.

2. The solenoid valve fault detection device according to claim 1, characterized in that, Each current detection unit includes a current transformer, wherein the power supply line of each solenoid valve is wound multiple times on the corresponding current transformer so that the corresponding current transformer senses the corresponding power supply current, generates an induced current, and amplifies the induced current to generate the current detection signal.

3. The solenoid valve fault detection device according to claim 2, characterized in that, The number of turns of the power supply line of each solenoid valve wound on the corresponding current transformer is an integer greater than or equal to a preset value, wherein the preset value is the ratio of the preset current value to the power supply current.

4. The solenoid valve fault detection device according to claim 2, characterized in that, Each solenoid valve is powered by a live wire.

5. The solenoid valve fault detection device according to any one of claims 1-4, characterized in that, Each of the prompting units is mounted on the corresponding current detection unit.

6. The solenoid valve fault detection device according to any one of claims 1-4, characterized in that, Each indicator unit includes an indicator light connected to a current detection unit, and the indicator light is configured to illuminate when the corresponding current detection signal is greater than or equal to the preset current value.

7. The solenoid valve fault detection device according to claim 6, characterized in that, The preset current value is the minimum operating current of the indicator light.

8. A wet film system, characterized in that, include: At least one solenoid valve, each solenoid valve being adapted to be connected to a power supply, each solenoid valve being configured to operate according to the power supply current provided by the power supply; According to any one of claims 1-7, the solenoid valve fault detection device is configured to generate a current detection signal based on the power supply current of each solenoid valve, and to issue a prompt message when at least one current detection signal is greater than or equal to a preset current value, wherein the current detection signal is greater than the power supply current, and the prompt message is used to indicate that the corresponding solenoid valve is working normally.

9. The wet film system according to claim 8, characterized in that, The solenoid valve fault detection device is installed in a different installation area than the at least one solenoid valve.

10. A cooling unit, characterized in that, Includes the wet film system according to claim 8 or 9.

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