Gas water heater parallel control device and joint control system

Abstract

The utility model discloses a gas water heater parallel control device and a joint control system, which comprise a box body, and a plurality of control ports, an interconnection port, a control module, a port access detection module and a luminescent lamp group which are all arranged in the box body, each control port is used for being connected with controllers of a plurality of gas water heaters; the interconnection port is used for being connected with an interconnection port of another gas water heater parallel control device or connected with monitoring equipment, the control module is connected with the control ports and the interconnection port, and the port access detection module comprises a plurality of port access detection units. The port access detection units are connected with the control ports in a one-to-one correspondence mode to detect access signals used for representing whether the control ports are accessed or not, the light-emitting lamp set comprises a plurality of light-emitting units with light-emitting parts arranged on the surface of the box body, the light-emitting units are connected with the port access detection units in a one-to-one correspondence mode, and the light-emitting units are triggered by the access signals to be lightened. The design arrangement is convenient, the cost is saved, and the monitoring is reliable and stable.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment control technology, and in particular to a parallel control device and control system for gas water heaters. Background Technology

[0002] Multiple gas water heaters are installed in places such as employee dormitories, student dormitories, and bathhouses. In the past, in order to monitor these gas water heaters, companies and schools would install a control device for each gas water heater. The control device could be connected to the monitoring backend via a line to upload the status data of the gas water heater. The monitoring backend could also send control commands to the control device, which would then control the gas water heater. However, the deployment cost was relatively high.

[0003] Existing control devices can connect to multiple gas water heaters separately, acquire status data from multiple gas water heaters, and then upload it uniformly. However, when installing the wiring between the control device and the gas water heaters, the control device needs to accommodate the locations of multiple gas water heaters, resulting in some gas water heaters being far apart. The installer needs to travel back and forth between the gas water heaters and the control device and check the wiring to determine whether the wiring between the gas water heaters and the control device is connected. This results in low installation efficiency and makes it difficult to quickly diagnose faults during inspection and maintenance. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a parallel control device and control system for gas water heaters, which is convenient to arrange, cost-effective, and provides reliable and stable monitoring.

[0005] A parallel control device for gas water heaters according to a first aspect of the present invention includes: a housing having a cavity; multiple control ports disposed in the housing, each control port being used to connect to a controller of multiple gas water heaters; at least one interconnection port disposed in the housing, the interconnection port being used to connect to an interconnection port of another parallel control device for gas water heaters or to a monitoring device; a control module connected to each control port and the interconnection port respectively; a port access detection module including multiple port access detection units, each port access detection unit being connected to a control port in a one-to-one correspondence to detect an access signal used to characterize whether the control port is accessed; and a light-emitting lamp group including multiple light-emitting units with light-emitting parts disposed on the surface of the housing, each light-emitting unit being connected to a port access detection unit in a one-to-one correspondence, the light-emitting unit being triggered to light up by the access signal.

[0006] A parallel control device for gas water heaters according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] This utility model relates to a parallel control device for gas water heaters. Each control port is connected to a corresponding gas water heater, while the interconnection port can be connected to the interconnection port of another parallel control device for gas water heaters or to a monitoring device. The control module can obtain the status data of the gas water heaters through the control ports and upload it to the monitoring device. It can also receive control commands from the monitoring device to control the operation of the gas water heaters. During installation, the installer first connects one end of the line to the gas water heater, and then connects the other end of the line to the control port. The port is connected to a detection unit to detect whether the line is conductive. When the line is conductive, the port is connected to the detection unit to trigger the light group to light up, and the installer can know that the installation is complete. This design is convenient to set up, saves costs, and provides reliable and stable monitoring.

[0008] According to some embodiments of this utility model, the port access detection unit includes a semiconductor switch Q1, a resistor R1, and a resistor R2. One end of the resistor R1 is connected to the power supply, and the other end of the resistor R1 is connected to the ground pin of the control port. The input terminal of the switch Q1 is connected to the negative terminal of the light-emitting unit, and the positive terminal of the light-emitting unit is connected to the power supply. The output terminal of the switch Q1 is connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

[0009] According to some embodiments of this utility model, the input terminal of the switching transistor Q1 is connected to the control module.

[0010] According to some embodiments of the present invention, a circuit board is provided inside the box, and the light-emitting unit includes LED beads disposed on the circuit board and a light guide column. One end of the light guide column covers the LED beads, and the other end of the light guide column extends to the box and is exposed outside the box.

[0011] According to some embodiments of the present invention, there are at least two interconnecting ports, and the multiple interconnecting ports are connected to each other via a bus, and the control module is connected to the bus.

[0012] According to some embodiments of the present invention, the parallel control device for gas water heaters further includes a switch module, which includes multiple switch units, each of which corresponds to a control port. The control module is connected to the control port through the switch units to transmit data, and the control module is connected to the controlled terminal of each of the switch units.

[0013] According to some embodiments of the present invention, the box body is provided with a control module, and the control module is connected to the control module.

[0014] According to some embodiments of the present invention, the surface of the box is provided with a groove, the control module includes multiple buttons and elastic patches, the control module is connected to each of the buttons respectively, the buttons pass through the box and are located on the bottom surface of the groove, the elastic patches are disposed in the groove and cover each button, and the elastic patches are provided with indicator patterns.

[0015] According to some embodiments of this utility model, the box body is provided with a display screen, and the control module is connected to the display screen.

[0016] According to a second aspect of the present invention, the control system includes a plurality of parallel control devices for gas water heaters disclosed in any of the above embodiments, and the plurality of parallel control devices for gas water heaters are connected through an interconnection port.

[0017] The control system according to the embodiments of this utility model has at least the following beneficial effects:

[0018] This utility model's joint control system adopts a parallel control device for gas water heaters, which is convenient to arrange, saves costs, and provides reliable and stable monitoring.

[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] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a perspective view of one embodiment of the parallel control device for gas water heaters of this utility model;

[0022] Figure 2 This is an exploded view of one embodiment of the parallel control device for gas water heaters of this utility model;

[0023] Figure 3 This is a circuit diagram of the port access detection unit of one embodiment of the parallel control device for gas water heaters of this utility model;

[0024] Figure 4 This is a schematic diagram of the principle structure of one embodiment of the parallel control device for gas water heaters of this utility model;

[0025] Figure 5 This is a schematic diagram of the principle structure of one embodiment of the joint control system of this utility model.

[0026] Figure label:

[0027] Box body 100; base 110; cover 120; groove 130; circuit board 140; control port 200; interconnection port 300; control module 400; switch module 410; port access detection unit 500; light-emitting unit 600; LED lamp bead 610; light guide column 620; control module 700; button 710; elastic patch 720; display screen 730; gas water heater parallel control device 800; monitoring equipment 900. Detailed Implementation

[0028] 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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 limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] like Figures 1 to 4As shown, a parallel control device 800 for gas water heaters according to a first aspect embodiment of the present invention includes a housing 100 and multiple control ports 200, at least one interconnection port 300, a control module 400, a port access detection module, and a light-emitting lamp assembly, all disposed in the housing 100. The housing 100 has a cavity. Each of the control ports 200 is used to connect to the controllers of multiple gas water heaters. The interconnection port 300 is used to connect to the interconnection port 300 of another parallel control device 800 for gas water heaters or to a monitoring device 900. The control module 400 is connected to each control port 200 and the interconnection port 300 respectively. The port access detection module includes multiple port access detection units 500. Each port access detection unit 500 is connected to the control port 200 in a one-to-one correspondence to detect the access signal used to characterize whether the control port 200 is accessed. The light-emitting lamp group includes multiple light-emitting units 600 with light-emitting parts disposed on the surface of the housing 100. The light-emitting units 600 are connected to the port access detection units 500 in a one-to-one correspondence. The light-emitting units 600 are lit up when triggered by the access signal.

[0033] The box body 100 may include a base 110 and a cover 120. The base 110 and the cover 120 can be connected to each other by snap-fit ​​and latch, or by screw holes and screws. The box body 100 may be rectangular, circular, elliptical, etc. In some embodiments of this utility model, the box body 100 is rectangular. All control ports 200 can be set on one side of the box body 100, and interconnection ports 300 can be set on the other side of the box body 100, so that different ports can be clearly distinguished and convenient for users to use.

[0034] Each light-emitting unit 600 can be set near the control port 200 in a one-to-one correspondence, so that the user can identify which light-emitting unit 600 corresponds to which control port 200's access status.

[0035] The control module 400 can be composed of a processor such as an MCU or CPU and its auxiliary circuits. The control port 200 can be a USB interface, and the interconnection port 300 can be an RJ45 interface.

[0036] This utility model relates to a parallel control device 800 for gas water heaters. Each control port 200 is connected to a corresponding gas water heater, and the interconnection port 300 can be connected to the interconnection port 300 of another parallel control device 800 or a monitoring device 900. The control module 400 can obtain the status data of the gas water heater through the control port 200 and upload it to the monitoring device 900. It can also receive control commands from the monitoring device 900 to control the operation of the gas water heater. During installation, the installer first connects one end of the line to the gas water heater, and then connects the other end of the line to the control port 200. The port connection detection unit 500 can detect whether the line is conductive. When the line is conductive, the port connection detection unit 500 can trigger the light group to light up, and the installer can know that the installation is complete. This design is convenient to set up, saves costs, and provides reliable and stable monitoring.

[0037] In some embodiments of this utility model, such as Figure 3 As shown, the port access detection unit 500 includes a semiconductor switch Q1, a resistor R1, and a resistor R2. One end of the resistor R1 is connected to the power supply, and the other end of the resistor R1 is connected to the ground pin of the control port 200. The input terminal of the switch Q1 is connected to the negative terminal of the light-emitting unit 600, and the positive terminal of the light-emitting unit 600 is connected to the power supply. The output terminal of the switch Q1 is connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

[0038] The switching transistor Q1 can be a transistor or a MOSFET, such as a PNP transistor. The control port 200 usually has a power supply pin, a signal pin, and a ground pin. When the transmission line is not connected, the power supply pin, signal pin, and ground pin are all in an unused state. After the transmission line is connected to the control port 200, the ground wire in the transmission line is connected to the ground pin. Therefore, after the ground pin is grounded, the switching transistor Q1 is turned on, and the light-emitting unit 600 is lit.

[0039] In some embodiments of this utility model, such as Figure 3 , 4 As shown, the input terminal of the switching transistor Q1 is connected to the control module 400.

[0040] In some embodiments of this utility model, a circuit board 140 is provided inside the housing 100, and the light-emitting unit 600 includes LED beads 610 disposed on the circuit board 140 and a light guide post 620. One end of the light guide post 620 covers the LED beads 610, and the other end of the light guide post 620 extends to the housing 100 and is exposed outside the housing 100.

[0041] The circuit board 140 can be a conventional PCB board, and the LED beads 610 can be RGB mixed color LEDs, which can emit different colors of light according to different states. For example, when the line is not connected, the LED beads 610 can emit red light, and when the line is connected, the LED beads 610 emit green light. The light guide column 620 can be made of acrylic or resin material. The light enters from one end of the light guide column 620, propagates inside the light guide column 620, and then exits from the other end of the light guide column 620. The position of the other end of the light guide column 620 corresponds to the control port 200. The light emitted by the LED beads 610 corresponding to the control port 200 is accurately emitted from the other end of the light guide column 620, which makes it easy for users to distinguish the status of each control port 200.

[0042] In some embodiments of this utility model, there are at least two interconnect ports 300, and multiple interconnect ports 300 are connected to each other via a bus, and the control module 400 is connected to the bus.

[0043] Multiple gas water heater parallel control devices 800 can be connected end-to-end through interconnection ports 300, thereby enabling monitoring equipment 900 to monitor more gas water heaters. Specifically, one interconnection port 300 can be connected to the interconnection port 300 of the previous gas water heater parallel control device 800 through a transmission bus, and another interconnection port 300 can be connected to the interconnection port 300 of the next gas water heater parallel control device 800 through a transmission bus.

[0044] In some embodiments of this utility model, the parallel control device 800 for gas water heaters further includes a switch module 410, which includes multiple switch units. Each switch unit corresponds to a control port 200. The control module 400 is connected to the control port 200 through the switch units to transmit data. The control module 400 is connected to the controlled end of each switch unit.

[0045] The switching unit can be a relay switch, a transistor, a MOSFET, etc. When some gas water heaters malfunction or the user wants to turn off or disconnect some gas water heaters, the control module 400 can control the switching unit to turn off, thereby restricting the control module 400 from issuing control commands to the corresponding gas water heater.

[0046] In some embodiments of this utility model, the housing 100 is provided with a control module 700, which is connected to the control module 400. On-site personnel can also input control commands through the control module 700 on the gas water heater parallel control device 800 to control the corresponding gas water heater.

[0047] In some embodiments of this utility model, the surface of the box 100 is provided with a groove 130, the control module 700 includes a plurality of buttons 710 and an elastic patch 720, the control module 400 is connected to each of the buttons 710 respectively, the buttons 710 pass through the box 100 and are located on the bottom surface of the groove 130, the elastic patch 720 is disposed in the groove 130 and covers each button 710, and the elastic patch 720 is provided with an indicator pattern.

[0048] The indicator pattern on the elastic patch 720 can indicate the function of the corresponding button 710. The user can press the corresponding position of the elastic patch 720 according to the prompt of the indicator pattern, thereby pressing against the corresponding button 710. The button 710 being pressed generates an electrical signal output to the control module 400.

[0049] In some embodiments of this utility model, the housing 100 is provided with a display screen 730, and the control module 400 is connected to the display screen 730. The control module 400 can display the control parameters set for each gas water heater or the operating status of the gas water heater through the display screen 730.

[0050] According to the second aspect of the present invention, the control system, such as Figure 5 As shown, the system includes multiple gas water heater parallel control devices 800 disclosed in any of the above embodiments, and the multiple gas water heater parallel control devices 800 are connected through an interconnection port 300.

[0051] Multiple gas water heater parallel control devices 800 can be connected end to end through interconnection ports 300. Each gas water heater parallel control device 800 can connect to multiple gas water heaters. The gas water heater at the first end can be connected to the monitoring device 900 through interconnection port 300. The monitoring device 900 sends control commands to each gas water heater parallel control device 800 through the bus. The status information obtained by each gas water heater parallel control device 800 can also be uploaded to the monitoring device 900 through the bus.

[0052] This utility model's joint control system uses a gas water heater parallel control device 800, which is convenient to arrange, saves costs, and provides reliable and stable monitoring.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A parallel control device for gas water heaters, characterized in that, include: The box body has a cavity; Multiple control ports are provided in the housing, and each control port is used to connect to the controller of multiple gas water heaters; At least one interconnection port is provided in the housing, the interconnection port being used to connect to the interconnection port of another gas water heater parallel control device or to a monitoring device; The control module is connected to each control port and the interconnection port respectively; The port access detection module includes multiple port access detection units, each of which is connected to a control port in a one-to-one correspondence to detect access signals used to characterize whether the control port has been accessed; The light-emitting unit includes multiple light-emitting units with light-emitting parts disposed on the surface of the housing. Each light-emitting unit is connected to a port access detection unit in a one-to-one correspondence. The light-emitting unit is triggered to light up by an access signal.

2. The parallel control device for gas water heaters according to claim 1, characterized in that: The port access detection unit includes a semiconductor switch Q1, a resistor R1, and a resistor R2. One end of the resistor R1 is connected to the power supply, and the other end of the resistor R1 is connected to the ground pin of the control port. The input terminal of the switch Q1 is connected to the negative terminal of the light-emitting unit, and the positive terminal of the light-emitting unit is connected to the power supply. The output terminal of the switch Q1 is connected to one end of the resistor R2, and the other end of the resistor R2 is grounded.

3. The parallel control device for gas water heaters according to claim 2, characterized in that: The input terminal of the switching transistor Q1 is connected to the control module.

4. The parallel control device for gas water heaters according to claim 1, characterized in that: The box contains a circuit board, and the light-emitting unit includes LED beads and a light guide column disposed on the circuit board. One end of the light guide column covers the LED beads, and the other end of the light guide column extends to the box and is exposed outside the box.

5. A parallel control device for gas water heaters according to claim 1, characterized in that: There are at least two interconnect ports, and multiple interconnect ports are connected to each other via a bus. The control module is connected to the bus.

6. A parallel control device for gas water heaters according to claim 1, characterized in that, It also includes a switch module, which comprises multiple switch units, each corresponding to a control port. The control module is connected to the control port through the switch units to transmit data, and the control module is connected to the controlled end of each of the switch units.

7. A parallel control device for gas water heaters according to claim 6, characterized in that, The box is equipped with a control module, which is connected to the control module.

8. A parallel control device for gas water heaters according to claim 7, characterized in that, The surface of the box is provided with a groove. The control module includes multiple buttons and elastic patches. The control module is connected to each of the buttons. The buttons pass through the box and are located on the bottom surface of the groove. The elastic patches are disposed in the groove and cover each button. The elastic patches are provided with indicator patterns.

9. A parallel control device for gas water heaters according to claim 1, characterized in that, The box is equipped with a display screen, and the control module is connected to the display screen.

10. A joint control system, characterized in that, It includes multiple parallel control devices for gas water heaters as described in any one of claims 1 to 9, wherein the multiple parallel control devices for gas water heaters are connected through an interconnection port.

Images