Energy supply device of air compressor

Abstract

The utility model provides an air compressor energy supply device, and relates to the technical field of air compressor restarting. The air compressor energy supply device is used for an air compressor of a photovoltaic glass production line, and the air compressor is configured to comprise a remote starting circuit which comprises a frequently-used power supply circuit, a standby power supply circuit and a first relay. The frequently-used power supply circuit is used for supplying power to the air compressor, and the standby power supply circuit is used for supplying power to the air A coil of the first relay is electrically connected to the standby power supply circuit, the first relay comprises a first normally open contact, and the first normally open contact is electrically connected to the remote starting circuit. After the standby power supply circuit is powered on, the first normally open contact of the first relay is closed, and the remote starting circuit is connected at the moment, so that the air compressor can be automatically restarted, the restarting time of the air compressor is shortened, and normal supply of compressed air is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of air compressor restart, and in particular to an air compressor energy supply device. Background Art

[0002] Air compressors are a frequently used piece of equipment in the photovoltaic glass production process. For example, they are used in the melting and forming processes of photovoltaic glass. Air compressors are mostly powered by electricity, and a continuous power supply is essential for their continued stable operation. However, in reality, due to various uncertainties, power outages may occur, preventing the air compressor from continuing to operate normally and impacting production efficiency. To improve the operational continuity of the air compressor, a common approach is to use a dual-circuit power supply. If one circuit is interrupted, power can be switched to the other circuit. However, the disadvantage of this approach is that after the circuit is switched, the operator must manually restart the air compressor. However, in reality, due to factors such as the company's internal processes and coordination with gas-using departments, operating personnel are unable to perform restart operations in a timely manner, which in turn causes a serious delay in restarting the air compressor, resulting in uncontrollable consequences for the gas-using departments, especially for some processing departments that require continuous gas supply. For example, a refrigeration truck with a backup power supply (CN2696921Y) disclosed in the prior art has a similar structure. Its compressor can be powered by a backup power supply, but the compressor does not have an automatic restart function after switching to the backup power supply. In summary, how to make the air compressor automatically restart after switching the power circuit is a technical problem that urgently needs to be solved. Utility Model Content

[0003] A technical problem to be solved by this application is: how to enable the air compressor to automatically restart after switching the power circuit.

[0004] To address the aforementioned technical issues, embodiments of the present application provide an air compressor power supply device for use with an air compressor in a photovoltaic glass production line. The air compressor is configured to include a remote start circuit, comprising a normal power circuit, a backup power circuit, and a first relay. The normal power circuit is used to supply energy to the air compressor, and the backup power circuit is used to supply energy to the air compressor. The coil of the first relay is electrically connected to the backup power circuit, and the first relay includes a first normally open contact, which is electrically connected to the remote start circuit.

[0005] In some embodiments, a second relay is further included, wherein the coil of the second relay is electrically connected to the normal power circuit, and the second relay includes a second normally closed contact, and the second normally closed contact is electrically connected to the backup power circuit.

[0006] In some embodiments, the first relay further includes a second normally open contact, the second normally open contact is electrically connected to the backup power circuit, and the second normally open contact and the second normally closed contact are connected in parallel.

[0007] In some embodiments, the remote start circuit further includes a first switch connected in parallel with the first normally open contact.

[0008] In some embodiments, the first switch is a push button switch.

[0009] In some embodiments, the remote start circuit further includes a second switch, the second switch being connected in series with the first normally open contact.

[0010] In some embodiments, the common power circuit is provided with a circuit breaker.

[0011] In some embodiments, the backup power circuit is provided with a circuit breaker.

[0012] In some embodiments, the circuit breaker is an air switch.

[0013] In some embodiments, a power cabinet is further included, the power cabinet is electrically connected to the air compressor, and the normal power circuit and the backup power circuit are electrically connected to the power cabinet.

[0014] Through the above technical solution, when the backup power circuit is energized, the first normally open contact of the first relay closes, connecting the remote start circuit and enabling the air compressor to automatically restart. This reduces the time it takes to restart the air compressor and ensures a normal supply of compressed air. Controlling the restart of the air compressor through the first relay offers the advantages of fast response, improving switching efficiency, reducing the time it takes to restart the air compressor, and ensuring a normal supply of compressed air. Furthermore, the relay offers the advantages of a simple and reliable structure, strong anti-interference capabilities, and a long service life, improving control reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0016] Figure 1 A schematic structural diagram of an air compressor energy supply device provided in some embodiments of the present application;

[0017] Figure 2 Schematic diagram of electrical control of an air compressor energy supply device provided in some embodiments of the present application;

[0018] Figure 3 This is a terminal wiring diagram of an air compressor controller provided in some embodiments of the present application (the first terminal in the figure may be terminal 16, and the second terminal may be terminal 17).

[0019] Description of reference numerals:

[0020] 1. Normal power circuit; 2. Backup power circuit; 3. Air compressor; 4. Power cabinet; 5. Control cabinet; 6. Circuit breaker; 7. First relay; 8. First normally open contact; 9. Second normally open contact; 10. Second relay; 11. Second normally closed contact; 12. First switch; 13. Second switch; 14. Remote start circuit. DETAILED DESCRIPTION

[0021] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present application, but are not intended to limit the scope of the present application. The present application may be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but rather includes all technical solutions within the scope of the claims.

[0022] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0023] It should be noted that, in the description of this application, unless otherwise specified, "plurality" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," and the like, indicating directions or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0025] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application depending on 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 intervening device between the specific device and the first or second device.

[0026] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common 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 highly formal sense, unless explicitly defined as such herein.

[0027] 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.

[0028] See also Figure 1 、 Figure 2 and Figure 3 The present invention provides an air compressor power supply device for an air compressor 3 in a photovoltaic glass production line. The air compressor 3 is configured to include a remote start circuit 14, including a normal power circuit 1, a backup power circuit 2, and a first relay 7. The normal power circuit 1 is used to supply energy to the air compressor 3, and the backup power circuit 2 is used to supply energy to the air compressor 3. The coil of the first relay 7 is electrically connected to the backup power circuit 2. The first relay 7 includes a first normally open contact 8, which is electrically connected to the remote start circuit 14.

[0029] In the photovoltaic glass production line, multiple processes such as driving the pneumatic system and using combustion-supporting air to assist combustion in exhaust gas treatment require continuous gas consumption. Therefore, increasing the working continuity of air compressor 3 is important for ensuring normal production efficiency.

[0030] The remote start circuit 14 of the air compressor 3 is used to control the remote start of the air compressor 3. Its specific circuit, control principle and parameter setting of the air compressor 3 during remote control are well known to those skilled in the art. In general, when the remote start circuit 14 is connected, the air compressor 3 can be started remotely.

[0031] The structure and working principle of a relay are well known to those skilled in the art. In general, a relay includes a coil, a normally open contact, and a normally closed contact. The normally open contact refers to a contact that is in an open state when the relay is not in operation (i.e., the coil is not energized), and the normally closed contact refers to a contact that is in a closed state when the relay is not in operation (i.e., the coil is not energized). When the coil is energized, the normally open contact closes and the normally closed contact opens.

[0032] The coil of the first relay 7 is electrically connected to the backup power supply circuit 2. When the backup power supply circuit 2 is energized, the first normally open contact 8 of the first relay 7 is closed. At this time, the remote start circuit 14 is connected, so that the power circuit supplying energy to the air compressor 3 is switched from the normal power supply circuit 1 to the backup power supply circuit 2. The air compressor 3 can automatically restart, reducing the restart time of the air compressor 3 and ensuring the normal supply of compressed air.

[0033] In some embodiments, a second relay 10 is further included, the coil of the second relay 10 is electrically connected to the normal power circuit 1 , and the second relay 10 includes a second normally closed contact 11 , which is electrically connected to the backup power circuit 2 .

[0034] In the initial state, the common power circuit 1 supplies power normally, the coil of the second relay 10 is energized, and the second normally closed contact 11 of the second relay 10 is in the disconnected state, that is, the backup power circuit 2 is in the power-off state.

[0035] When the normal power circuit 1 is powered off, the coil of the second relay 10 loses power. At this time, the second normally closed contact 11 of the second relay 10 is restored to close, and the backup power circuit 2 is connected. At this time, the air compressor 3 can be powered by the backup power circuit 2.

[0036] The second relay 10 controls the automatic switching between the normal power circuit 1 and the backup power circuit 2, further reducing the restart time of the air compressor 3 and ensuring the normal supply of compressed air.

[0037] In some embodiments, the first relay 7 further includes a second normally open contact 9 , which is electrically connected to the backup power supply circuit 2 , and the second normally open contact 9 and the second normally closed contact 11 are connected in parallel.

[0038] The first relay 7 is energized and the second normally open contact 9 is closed. At this time, the backup power supply circuit 2 can be connected through the second normally open contact 9.

[0039] The second normally open contact 9 and the second normally closed contact 11 are connected in parallel, thereby improving the connectivity reliability of the backup power circuit 2. For example, when the backup power circuit 2 is enabled, if the second normally open contact 9 of the first relay 7 fails and opens, the second normally closed contact 11 of the second relay 10 can maintain the backup power circuit 2 connected.

[0040] In some embodiments, the remote start circuit 14 further includes a first switch 12 , which is connected in parallel with the first normally open contact 8 .

[0041] The first switch 12 is used to control the on / off of the remote starting circuit 14 . When the first switch 12 is closed, the remote starting circuit 14 is connected, and the air compressor 3 is started.

[0042] The first switch 12 is connected in parallel to the first normally open contact 8 , which can increase the restart reliability of the air compressor 3 . That is, if the normally open contact of the first relay 7 fails to close normally, the air compressor 3 can be restarted by closing the first switch 12 .

[0043] In the embodiment of the present application, the restart of the air compressor 3 is controlled by the first relay 7, and the normal power circuit 1 and the backup power circuit 2 are switched by the second relay 10. On the one hand, the relay has the advantage of fast response, which improves switching efficiency, reduces the time required to restart the air compressor 3, and ensures the normal supply of compressed air. On the other hand, the relay has the advantages of simple and reliable structure, strong anti-interference performance, and long service life, which improves control reliability.

[0044] In this embodiment, the energy supply device may further include a control cabinet 5. The structure and operating principle of the control cabinet 5 are well known to those skilled in the art. In summary, the control cabinet 5 integrates multiple relays, one of which can be selected as the first relay 7 and another as the second relay 10. The use of the control cabinet 5 facilitates centralized control and is also equipped with safety elements such as overload protectors and fuses to protect the equipment. Furthermore, wiring can be simplified.

[0045] In some embodiments, the first switch 12 is a push button switch.

[0046] The structure of a push button switch is well known to those skilled in the art and will not be described in detail herein. The push button switch is pressed by an operator to drive the contacts to move, thereby achieving the purpose of controlling the on and off of a circuit.

[0047] The push button switch can be a rocker switch with an indicator light. When the circuit is connected, the indicator light of the push button switch lights up, which can effectively alert the operator. In addition, the rocker switch can reduce the risk of accidental touch.

[0048] In some embodiments, the remote start circuit 14 further includes a second switch 13 , and the second switch 13 is connected in series with the first normally open contact 8 .

[0049] The second switch 13 is used for overall control of the remote start circuit 14. When the second switch 13 is disconnected, the remote control circuit cannot be connected regardless of whether the first normally open contact 8 and the first switch 12 are closed.

[0050] The second switch 13 can be used to improve the safety of the air compressor 3. For example, when the air compressor 3 is being repaired, the second switch 13 can be turned off to reduce the risk of the air compressor 3 starting up by mistake.

[0051] In this embodiment, the model of the second switch 13 can be the same as that of the first switch 12 .

[0052] In some embodiments, the common power circuit 1 is provided with a circuit breaker 6 .

[0053] The structure and working principle of the circuit breaker 6 are well known to those skilled in the art and will not be described in detail here.

[0054] In this embodiment, the circuit breaker 6 is used to cut off the normal power circuit 1 when the normal power circuit 1 is abnormal, such as overload or short circuit.

[0055] In some embodiments, the backup power circuit 2 is provided with a circuit breaker 6 .

[0056] In this embodiment, the circuit breaker 6 is used to cut off the normal power circuit 1 when the backup power circuit 2 is abnormal, such as overload or short circuit.

[0057] In some embodiments, the circuit breaker 6 is an air switch.

[0058] The structure and operating principle of circuit breaker 6 are well known to those skilled in the art. In summary, when the current in a circuit exceeds the rated current, significant heat is generated. A thermal element is located within the circuit breaker, which senses the abnormal heat generated by the excessive current. As heat accumulates, the thermal element deforms or triggers a mechanism that activates the circuit breaker, causing a circuit breaker trip and protecting the circuit and equipment from damage.

[0059] On the one hand, the air switch has an automatic disconnection function, which improves circuit safety. On the other hand, the air switch can quickly restore power supply after the fault is eliminated, reducing the time for restarting the air compressor 3 and ensuring the normal supply of compressed air.

[0060] In some embodiments, a power cabinet 4 is further included. The power cabinet 4 is electrically connected to the air compressor 3 , and the normal power circuit 1 and the backup power circuit 2 are electrically connected to the power cabinet 4 .

[0061] The structure and working principle of the power cabinet 4 are well known to those skilled in the art and will not be described in detail here.

[0062] The power cabinet 4 supplies energy to the air compressor 3. On the one hand, it can provide the air compressor 3 with a stable power supply and current output to ensure the normal operation of the air compressor 3. On the other hand, it can monitor the working status of the air compressor 3 to ensure the normal operation of the air compressor 3.

[0063] So far, the various embodiments of the present application have been described in detail. To avoid obscuring the concept of the present application, some details well known in the art have not been described. Based on the above description, those skilled in the art can fully understand how to implement the technical solutions disclosed herein.

[0064] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art will understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. Those skilled in the art will understand 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, as long as there are no structural conflicts, the various technical features mentioned in the various embodiments may be combined in any manner.

Claims

1. An air compressor energy supply device, used for an air compressor (3) of a photovoltaic glass production line, wherein the air compressor (3) is configured to include a remote starting circuit (14), characterized in that: include: A common power supply circuit (1) for supplying energy to the air compressor (3); A backup power supply circuit (2) for supplying energy to the air compressor (3); A first relay (7), wherein the coil of the first relay (7) is electrically connected to the backup power circuit (2), and the first relay (7) comprises a first normally open contact (8), and the first normally open contact (8) is electrically connected to the remote start circuit (14).

2. The air compressor energy supply device according to claim 1, characterized in that: The invention also includes a second relay (10), wherein the coil of the second relay (10) is electrically connected to the normal power supply circuit (1), and the second relay (10) includes a second normally closed contact (11), and the second normally closed contact (11) is electrically connected to the backup power supply circuit (2).

3. The air compressor energy supply device according to claim 2, characterized in that: The first relay (7) further includes a second normally open contact (9), the second normally open contact (9) being electrically connected to the backup power supply circuit (2), and the second normally open contact (9) and the second normally closed contact (11) being connected in parallel.

4. The air compressor energy supply device according to claim 1, characterized in that: The remote start circuit (14) further includes a first switch (12), wherein the first switch (12) is connected in parallel with the first normally open contact (8).

5. The air compressor energy supply device according to claim 4, characterized in that: The first switch (12) is a push button switch.

6. The air compressor energy supply device according to claim 1, characterized in that: The remote start circuit (14) further includes a second switch (13), wherein the second switch (13) and the first normally open contact (8) are connected in series.

7. The air compressor energy supply device according to claim 1, characterized in that: The common power supply circuit (1) is provided with a circuit breaker (6).

8. The air compressor energy supply device according to claim 1, characterized in that: The backup power supply circuit (2) is provided with a circuit breaker (6).

9. The air compressor energy supply device according to claim 7 or 8, characterized in that: The circuit breaker (6) is an air switch.

10. The air compressor energy supply device according to claim 1, characterized in that: It also includes a power cabinet (4), the power cabinet (4) is electrically connected to the air compressor (3), and the normal power circuit (1) and the backup power circuit (2) are electrically connected to the power cabinet (4).

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