Cooling device and glass preparation system

Abstract

The utility model provides a cooling device and a glass preparation system. The cooling device comprises a controller, a frequency converter and a change-over switch, the frequency converter comprises a first starting port, a second starting port and a first receiving port; the controller comprises a first sending port, a second sending port and a third sending port; a first starting port of the frequency converter is respectively connected with a first sending port of the controller and a first port of the change-over switch, and a second starting port of the frequency converter is respectively connected with a second sending port of the controller and a second port of the change-over switch; a third port of the change-over switch is connected with a third sending port of the controller; a fourth port of the change-over switch is connected with a first receiving port of the frequency converter; when the controller does not work, the third port and the fourth port of the change-over switch are connected, the first port and the second port are disconnected, and the frequency converter operates at a preset frequency. Therefore, normal operation of the frequency converter can be ensured when the controller cannot be used.

Description

Technical Field

[0001] The present application relates to the technical field of glass preparation, and in particular to a cooling device and a glass preparation system. Background Art

[0002] Current cooling devices generally use a programmable logic controller (PLC) to control the inverter, which is used to control a circulating water pump to cool down an object. However, if the PLC crashes or loses power during operation, the inverter will stop working because it will lose the source of the start signal and frequency signal. Utility Model Content

[0003] A technical problem to be solved by the present application is: how to ensure the normal operation of the inverter when the controller cannot be used.

[0004] In order to solve the above technical problems, the embodiments of the present application provide a cooling device and a glass preparation system.

[0005] An embodiment of the present application provides a cooling device, which includes: a controller, a frequency converter and a switching switch; the frequency converter includes a first start port, a second start port and a first receiving port; the controller includes a first sending port, a second sending port and a third sending port; the switching switch includes a first port, a second port, a third port and a fourth port; the first start port of the frequency converter is respectively connected to the first sending port of the controller and the first port of the switching switch, and the second start port of the frequency converter is respectively connected to the second sending port of the controller and the second port of the switching switch; the third port of the switching switch is connected to the third sending port of the controller; the fourth port of the switching switch is connected to the first receiving port of the frequency converter; when the controller is not working, the third port and the fourth port of the switching switch are turned on, the first port and the second port are disconnected, and the frequency converter runs at a preset frequency.

[0006] In some embodiments, a relay is connected between the controller and the switching switch; when the relay is closed, the first port and the second port of the switching switch are connected, and the third port and the fourth port are disconnected; when the relay is disconnected, the third port and the fourth port of the switching switch are connected, and the first port and the second port are disconnected.

[0007] In some embodiments, when the controller is working, the first port and the second port of the switching switch are turned on, and the third port and the fourth port are turned off; the third sending port of the controller is used to output a frequency signal, and the frequency signal is used to indicate the operating frequency of the inverter.

[0008] In some embodiments, the preset frequency is the lowest operating frequency of the inverter.

[0009] In some embodiments, the frequency converter includes a memory, and the memory is used to store a preset frequency of the frequency converter.

[0010] In some embodiments, the controller is a programmable logic controller.

[0011] In some embodiments, the cooling device includes a circulating water pump; the circulating water pump is connected to the frequency converter.

[0012] In some embodiments, the cooling device further includes a first power supply; the first power supply is used to supply power to the frequency converter.

[0013] In some embodiments, the cooling device includes a second power supply; the second power supply is used to power the controller.

[0014] An embodiment of the present application also provides a glass preparation system, which includes: a glass preparation device and a cooling device provided in the above embodiment; the cooling device is connected to the glass preparation device, and the cooling device is used to reduce the temperature of the glass preparation device.

[0015] Through the above technical solution, the cooling device and glass preparation system provided by the present application are provided with a switching switch between the frequency converter and the controller, through which the first start port and the second start port of the frequency converter can be short-circuited when the controller is not working and the frequency converter is powered normally, and the frequency converter can be operated at a preset frequency. That is, when the controller cannot work normally, the normal operation of the frequency converter is not affected, thereby, the frequency converter can be switched in time, which saves time, is easy to operate, and can ensure the stability of the cooling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structural architecture of the cooling device disclosed in the embodiment of the present application;

[0018] Figure 2 is a schematic diagram of the structural architecture of a cooling device disclosed in yet another embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the structural architecture of a cooling device disclosed in yet another embodiment of the present application;

[0020] Figure 4 is a schematic diagram of the structural architecture of a cooling device disclosed in yet another embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of the structure of a glass preparation system disclosed in an embodiment of the present application.

[0022] Description of reference numerals:

[0023] 100. Cooling device; 10. Frequency converter; 101. First start port; 102. Second start port; 103. First receiving port; 20. Controller; 201. First sending port; 202. Second sending port; 203. Third sending port; 30. Switch; 301. First port; 302. Second port; 303. Third port; 304. Fourth port; 40. Relay; 50. Circulating water pump; 61. First power supply; 62. Second power supply; 200. Glass preparation device; 300. Glass preparation system. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0025] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0026] In addition, words such as “include” or “comprises” and the like used in the present application mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements.

[0027] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0028] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] The present application embodiment provides a cooling device 100. Figure 1 As shown, the cooling device 100 includes: a controller 20 and a frequency converter 10; the frequency converter 10 includes a first start port 101, a second start port 102 and a first receiving port 103; the controller 20 includes a first sending port 201, a second sending port 202 and a third sending port 203.

[0031] The first start port 101 of the inverter 10 is connected to the first sending port 201 of the controller 20 respectively, and the second start port 102 of the inverter 10 is connected to the second sending port 202 of the controller 20 respectively; the first receiving port 103 of the inverter 10 is connected to the third sending port 203 of the controller 20.

[0032] The first sending port 201 of the controller 20 is used to output a start signal to the first start port 101 of the inverter 10, the second sending port 202 of the controller 20 is used to output a start signal to the second start port 102 of the inverter 10, and the third sending port 203 of the controller 20 is used to output a frequency signal to the first receiving port 103 of the inverter 10.

[0033] The controller 20 will send a start signal and a frequency signal to the inverter 10 in a normal working state, wherein the start signal is used to short-circuit the first start port 101 and the second start port 102 of the inverter 10, and the frequency signal is used to indicate the working frequency of the inverter 10. The inverter 10 starts to work after receiving the start signal and the frequency signal, but when the controller 20 crashes or the controller 20 loses power abnormally, the inverter 10 will stop without the source of the start signal and the frequency signal, affecting the normal operation of the cooling device 100.

[0034] To this end, the present application embodiment provides a cooling device 100. Figure 2As shown, the cooling device 100 includes: a controller 20, a frequency converter 10 and a switching switch 30; the frequency converter 10 includes a first start port 101, a second start port 102 and a first receiving port 103; the controller 20 includes a first sending port 201, a second sending port 202 and a third sending port 203; the switching switch 30 includes a first port 301, a second port 302, a third port 303 and a fourth port 304.

[0035] The first startup port 101 of the inverter 10 is connected to the first sending port 201 of the controller 20 and the first port 301 of the switching switch 30 respectively, and the second startup port 102 of the inverter 10 is connected to the second sending port 202 of the controller 20 and the second port 302 of the switching switch 30 respectively; the third port 303 of the switching switch 30 is connected to the third sending port 203 of the controller 20; and the fourth port 304 of the switching switch 30 is connected to the first receiving port 103 of the inverter 10.

[0036] When the controller 20 is not working, the third port 303 and the fourth port 304 of the switch 30 are disconnected, the first port 301 and the second port 302 are connected, and the inverter 10 operates at a preset frequency.

[0037] When the controller 20 crashes or the controller 20 loses power abnormally, the inverter 10 will stop without the source of the start signal and the frequency signal. To this end, the embodiment of the present application is provided with a switching switch 30 between the inverter 10 and the controller 20. Through the switching switch 30, when the controller 20 is not working and the inverter 10 is powered normally, the first start port 101 and the second start port 102 of the inverter 10 are short-circuited, and the inverter 10 is allowed to run at a preset frequency. In this way, the inverter 10 can be switched in time, which saves time, is easy to operate, and can ensure the stability of the cooling device 100.

[0038] The present application also provides a cooling device 100. Figure 3 As shown, the cooling device 100 includes: a controller 20, a frequency converter 10, a relay 40 and a switch 30. The frequency converter 10 includes a first start port 101, a second start port 102 and a first receiving port 103; the controller 20 includes a first sending port 201, a second sending port 202 and a third sending port 203; the switch 30 includes a first port 301, a second port 302, a third port 303 and a fourth port 304. The relay 40 is connected between the controller 20 and the switch 30.

[0039] The first startup port 101 of the inverter 10 is connected to the first sending port 201 of the controller 20 and the first port 301 of the switching switch 30 respectively, and the second startup port 102 of the inverter 10 is connected to the second sending port 202 of the controller 20 and the second port 302 of the switching switch 30 respectively; the third port 303 of the switching switch 30 is connected to the third sending port 203 of the controller 20; and the fourth port 304 of the switching switch 30 is connected to the first receiving port 103 of the inverter 10.

[0040] A memory may also be provided in the frequency converter 10 for storing instructions and data. For example, the lowest operating frequency of the frequency converter 10 may be stored, for example, the lowest operating frequency of the frequency converter 10 may be stored as 40 Hz. In some embodiments, the memory in the controller 20 is a high-speed cache memory, thereby ensuring that the frequency converter 10 can operate at the lowest operating frequency when the controller 20 cannot be used.

[0041] The relay 40 is an electrical switch that controls the current in one circuit by controlling the current in another circuit. It is usually composed of an electromagnetic coil and one or more movable contacts. When the electromagnetic coil is energized, the generated magnetic field will attract the contacts to close or open, thereby turning the current in the control circuit on and off. For example, when the relay 40 is closed, the first port 301 and the second port 302 of the switch 30 are connected, and the third port 303 and the fourth port 304 are disconnected; when the relay 40 is disconnected, the third port 303 and the fourth port 304 of the switch 30 are connected, and the first port 301 and the second port 302 are disconnected.

[0042] Exemplarily, the controller 20 is a programmable logic controller (PLC), and the controller 20 may include one or more processing units, for example, the controller 20 may include an application processor (AP), a modem processor, a controller 20, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Among them, different processing units may be independent devices or integrated in one or more controllers 20. The controller 20 may generate an operation control signal according to the instruction opcode and the timing signal to complete the control of fetching and executing instructions.

[0043] The controller 20 may also be provided with a memory for storing instructions and data. For example, the memory may store instructions for adjusting the operating frequency of the frequency converter 10. In some embodiments, the memory in the controller 20 is a high-speed cache memory, which may store instructions or data that have just been used or are cyclically used by the controller 20. If the controller 20 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the controller 20, and thus improves the efficiency of the system.

[0044] In some embodiments, the controller 20 may include a plurality of interfaces. The controller 20 is connected to the switch 30 and the inverter 10 respectively through the plurality of interfaces. The plurality of interfaces of the controller 20 may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a general-purpose input / output (GPIO) interface, and / or a universal serial bus (USB) interface, etc.

[0045] In some specific embodiments, Figure 4 As shown, the frequency converter 10 is connected to the circulating water pump 50. The frequency converter 10 can control the speed and operation mode of the circulating water pump 50 by adjusting the output voltage and frequency. Generally speaking, the speed of the circulating water pump 50 is proportional to the water supply flow rate. Therefore, by adjusting the frequency output by the frequency converter 10, the speed of the motor of the circulating water pump 50 can be changed, thereby adjusting the flow rate of the circulating water-saving pump.

[0046] In a specific embodiment, the cooling device 100 further includes a first power supply 61 and a second power supply 62 , wherein the first power supply 61 is used to supply power to the inverter 10 , and the second power supply 62 is used to supply power to the controller 20 .

[0047] In the embodiment of the present application, the inverter 10 and the controller 20 are independently powered by two different power supplies. When the second power supply 62 cannot supply power normally, the first power supply 61 can still power the inverter 10 so that the inverter 10 can operate normally.

[0048] When the controller 20 is working, the relay 40 is disconnected, the first port 301 and the second port 302 of the switch 30 are disconnected, and the third port 303 and the fourth port 304 are connected; at this time, the first transmission port 201 of the controller 20 outputs a start signal to the first start port 101 of the inverter 10, the second transmission port 202 of the controller 20 outputs a start signal to the second start port 102 of the inverter 10, and the third transmission port 203 of the controller 20 outputs a frequency signal to the inverter 10, and the frequency signal is used to indicate the working frequency of the inverter 10. The inverter 10 works normally according to the start signal and the frequency signal.

[0049] When the controller 20 is not working, the relay 40 is closed, the third port 303 and the fourth port 304 of the switch 30 are disconnected, and the first port 301 and the second port 302 are connected, thereby short-circuiting the first start port 101 and the second start port 102 of the inverter 10, and the inverter 10 operates at a preset frequency. The preset frequency can be the lowest operating frequency of the inverter 10, for example, 40 Hz, to ensure that the inverter 10 can operate normally within a safe range.

[0050] Therefore, the cooling device 100 provided in the embodiment of the present application is provided with a switching switch 30 and a relay 40 for controlling the switching switch 30 between the frequency converter 10 and the controller 20. By controlling the switching switch 30, when the controller 20 is working normally, the controller 20 provides a start signal and a frequency signal to the frequency converter 10; when the controller 20 is not working and the power supply of the frequency converter 10 is normal, the first start port 101 and the second start port 102 of the frequency converter 10 are short-circuited, and the frequency converter 10 is allowed to operate at a preset frequency. Therefore, the frequency converter 10 can be switched in time, which saves time, is easy to operate, and can ensure the stability of the cooling device 100.

[0051] The present application also provides a glass preparation system. Figure 5 As shown, the glass preparation system 300 includes: a glass preparation device 200 and a cooling device 100 provided in the above embodiment; the cooling device 100 is connected to the glass preparation device 200, and the cooling device 100 is used to reduce the temperature of the glass preparation device.

[0052] In this embodiment, the glass preparation system 300 includes a glass preparation device 200 and a cooling device 100 for cooling the glass preparation device 200. In order to ensure that the cooling device 100 can always operate normally, the cooling device 100 controls the switching switch in the cooling device 100 so that when the controller 20 is operating normally, the controller 20 provides a start signal and a frequency signal to the frequency converter 10; when the controller 20 is not operating and the frequency converter 10 is powered normally, the frequency converter 10 is operated normally and runs at a preset frequency. In this way, the frequency converter can be switched in time, which saves time, is easy to operate, and can ensure the stability of the glass preparation system 300.

[0053] It can be understood that since the glass preparation system provided in the embodiment of the present application includes the cooling devices provided in the above-mentioned embodiments, the previous implementation is also applicable to the glass preparation system provided in this embodiment and will not be described in detail in this embodiment.

[0054] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0055] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A cooling device (100), characterized in that: include: A circulating water pump (50), a frequency converter (10), a controller (20) and a switch (30); The frequency converter (10) comprises a first start port (101), a second start port (102) and a first receiving port (103); The controller (20) comprises a first sending port (201), a second sending port (202) and a third sending port (203); The switch (30) comprises a first port (301), a second port (302), a third port (303) and a fourth port (304); The first start port (101) of the frequency converter (10) is respectively connected to the first sending port (201) of the controller (20) and the first port (301) of the switch (30), and the second start port (102) of the frequency converter (10) is respectively connected to the second sending port (202) of the controller (20) and the second port (302) of the switch (30); The third port (303) of the switching switch (30) is connected to the third sending port (203) of the controller (20); the fourth port (304) of the switching switch (30) is connected to the first receiving port (103) of the frequency converter (10); The circulating water pump (50) is connected to the frequency converter (10); When the controller (20) is not working, the third port (303) and the fourth port (304) of the switch (30) are disconnected, the first port (301) and the second port (302) are connected, and the frequency converter (10) operates at a preset frequency.

2. The device according to claim 1, characterized in that A relay (40) is connected between the controller (20) and the switch (30); When the relay (40) is closed, the first port (301) and the second port (302) of the switch (30) are connected, and the third port (303) and the fourth port (304) are disconnected; When the relay (40) is disconnected, the third port (303) and the fourth port (304) of the switch (30) are connected, and the first port (301) and the second port (302) are disconnected.

3. The device according to claim 2, characterized in that When the controller (20) is working, the first port (301) and the second port (302) of the switch (30) are disconnected, and the third port (303) and the fourth port (304) are connected; The third sending port (203) of the controller (20) is used to output a frequency signal, and the frequency signal is used to indicate the operating frequency of the frequency converter (10).

4. The device according to claim 1, characterized in that The preset frequency is the lowest operating frequency of the frequency converter (10).

5. The device according to claim 4, characterized in that The frequency converter (10) comprises a memory, and the memory is used to store a preset frequency of the frequency converter (10).

6. The device according to any one of claims 1 to 5, characterized in that The controller (20) is a programmable logic controller.

7. The device according to any one of claims 1 to 5, characterized in that The cooling device (100) further comprises a first power source (61); The first power source (61) is used to supply power to the frequency converter (10).

8. The device according to any one of claims 1 to 5, characterized in that The cooling device (100) comprises a second power source (62); The second power source (62) is used to supply power to the controller (20).

9. A glass preparation system (300), characterized in that: include: A glass preparation device (200) and a cooling device (100) as claimed in any one of claims 1 to 8; The cooling device (100) is connected to the glass preparation device (200), and the cooling device (100) is used to reduce the temperature of the glass preparation device (200).

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