A main transformer forced oil circulation water cooler control box and emergency control circuit

Abstract

The present application relates to the technical field of forced oil circulation water-cooled electrical technology, and particularly relates to a main transformer forced oil circulation water cooler control box and an emergency control circuit, which comprises a box frame, a box body arranged on the box frame, a box door arranged on the box body, a base fixing mechanism, an electrical component mounting mechanism and a reset component; the base fixing mechanism comprises a horizontal plate assembly arranged on the box body and a sleeving fixing assembly arranged on the horizontal plate assembly; the electrical component mounting mechanism comprises a plug-in assembly plugged into the sleeving fixing assembly, a sliding rail mounting assembly arranged on the plug-in assembly and the reset component arranged on the sliding rail mounting assembly; the electrical component mounting mechanism can be quickly mounted and dismounted by simple pressing, so that the work efficiency of circuit maintenance is greatly improved, and the problem that the main transformer forced oil circulation water-cooled control circuit failure affects power transmission is avoided by adding the emergency control circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of forced oil circulation water cooling electric technology, and particularly relates to a main transformer forced oil circulation water cooler control box and an emergency control circuit. BACKGROUND

[0002] The main transformer forced oil circulation water cooling is a cooling device of a transformer, which circulates and transports transformer oil through an oil pump, so that the high-temperature transformer oil is in contact with a low-temperature water path in an oil path to perform heat conversion and improve the cooling efficiency of the transformer oil.

[0003] The existing main transformer forced oil circulation water cooling control mode will cause the cooler to be completely stopped due to interruption of a working power supply or PLC failure in a special case, at this time, a protection function of cooler complete stop is usually provided, when the cooler is completely stopped, in order to prevent the transformer from being damaged due to high oil temperature, the protection function trips a power circuit breaker of the transformer to exit the operation of the transformer, at this time, power transmission is affected.

[0004] In addition, when troubleshooting the cooler circuit failure and replacing the faulty electrical components, since the relays, circuit breakers and other electrical components of the control box are generally fixed by screws or installed and fixed by insertion into guide rails, the screw fixing method needs to carry tools, the guide rail installation method is relatively convenient, but when repairing, if the damaged electrical component is located in the middle of the guide rail, the remaining electrical components on the side of the damaged electrical component need to be removed, so that the damaged electrical component can be repaired and replaced. SUMMARY

[0005] This section is intended to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification of the present application to avoid obscuring the purpose of this section, the abstract and the title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0006] In view of the above or the existing technical problems of troublesome maintenance and replacement and disassembly of electrical components, the present application is proposed.

[0007] Therefore, the purpose of the present application is to provide a main transformer forced oil circulation water cooler control box.

[0008] In order to solve the above technical problems, the application provides the following technical scheme: a box frame comprising a support, a box arranged on the support, and a box door arranged on the box; a base fixing mechanism comprising a horizontal plate assembly arranged on the box and a sleeve fixing assembly arranged on the horizontal plate assembly; an electrical component mounting mechanism comprising a plug-in assembly plugged into the sleeve fixing assembly, a slide rail mounting assembly arranged on the plug-in assembly, and a reset assembly arranged on the slide rail mounting assembly; the electrical component mounting mechanism is plugged and fixed to the base fixing mechanism, and can be disassembled by increasing the plug-in assembly process, thereby facilitating the single removal and replacement of faulty electrical components.

[0009] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the horizontal plate assembly comprises a horizontal plate arranged on the box and a fixing through hole formed in the horizontal plate.

[0010] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the sleeve fixing assembly comprises a sleeve arranged on the horizontal plate and an elastic clamping piece arranged on the sleeve.

[0011] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the sleeve comprises a plug-in seat arranged on the horizontal plate, a plug-in slot formed in the plug-in seat, a limiting slot formed in the plug-in slot, and a guide block arranged on the plug-in slot.

[0012] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the elastic clamping piece comprises an extrusion spring arranged in the limiting slot and an extrusion block arranged at one end of the extrusion spring, and the extrusion block is provided with a first bevel.

[0013] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the plug-in assembly comprises a plug-in column matched with the plug-in slot, a fixing clamping groove, a driving groove, an exit groove and a reset clamping groove formed in the plug-in column, and a rotating cavity formed at one end of the plug-in column; the driving groove comprises an entry section, a driving section and an exit section, and the reset clamping groove is provided with a second bevel.

[0014] As a preferred scheme of the control box of the main transformer forced oil circulation water cooler, the slide rail mounting assembly comprises a support rod rotatably arranged in the rotating cavity, a fixing plate arranged at the other end of the support rod, and a slide rail slot formed in the fixing plate.

[0015] As a preferred scheme of the main transformer forced oil circulation water cooler control box of the present application, wherein: the reset assembly comprises a No. 1 torsion spring sleeved on the supporting rod, and a positioning member arranged on the fixed plate.

[0016] As a preferred scheme of the main transformer forced oil circulation water cooler control box of the present application, wherein: the positioning member comprises a rotating shaft arranged on the fixed plate, and a positioning rod rotatably installed on the rotating shaft; the positioning rod is provided with a rotating shaft slot, and the rotating shaft slot is provided with a No. 2 torsion spring.

[0017] The main transformer forced oil circulation water cooler control box of the present application has the following beneficial effects: in the present application, the electrical components are slidably installed on the slide rail installation assembly, the plug-in assembly is inserted into the sleeved fixing assembly, and the elastic clamping member is matched and fixed with the fixed clamping groove. When maintenance and disassembly are performed, the plug-in assembly is made to be deeper by pressing the electrical components, so that the elastic clamping member is separated from the fixed clamping groove. The elastic clamping member enters and exits the slot through the arrangement of the guide block and the driving groove, and can be pulled out outwardly. The installation and disassembly are convenient, and the single electrical component can be disassembled and maintained without disassembling other electrical components, thereby greatly improving the maintenance efficiency.

[0018] In view of the problem that the main transformer forced oil circulation water cooling control circuit fails in actual use, affecting power transmission.

[0019] To solve the above technical problems, the present application further provides the following technical scheme: an emergency control circuit comprising a main transformer forced oil circulation water cooler control box.

[0020] As a preferred scheme of the emergency control circuit of the present application, wherein: it further comprises an emergency control circuit comprising a newly added AC380V emergency power supply, an emergency circuit switch added in the control box, and the emergency power supply and the emergency circuit switch being electrically connected, and the emergency circuit switch being electrically connected with the cooler water valve circuit and the oil pump circuit.

[0021] The emergency control circuit of the present application has the following beneficial effects: when the main control circuit fails, the emergency circuit switch is automatically opened, the emergency control circuit is switched to, the cooler water valve is opened, and the oil pump is started, so that the forced oil circulation water cooling is normally operated, without the need of exiting the operation of the main transformer, thereby providing sufficient time for eliminating the cooler failure, effectively ensuring the safe operation of the main transformer, and not affecting the power transmission. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The overall schematic diagram of the control box of the forced oil circulation water cooler of the main transformer.

[0024] Figure 2 The structure schematic diagram of the plug-in of the base fixing mechanism and the electrical component mounting mechanism of the control box of the forced oil circulation water cooler of the main transformer.

[0025] Figure 3 The exploded structure schematic diagram of the electrical component mounting mechanism of the control box of the forced oil circulation water cooler of the main transformer.

[0026] Figure 4 The cross-sectional structure schematic diagram of the sleeve fixing assembly of the control box of the forced oil circulation water cooler of the main transformer.

[0027] Figure 5 The structure schematic diagram of the plug-in column of the control box of the forced oil circulation water cooler of the main transformer.

[0028] Figure 6 The circuit structure schematic diagram of the emergency control circuit. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0032] Embodiment 1, with reference to Figures 1 to 5 , the first embodiment of the present application provides a control box of a forced oil circulation water cooler of a main transformer, which can solve the problem of troublesome maintenance, replacement and disassembly of electrical components, comprising a box frame 100, which comprises a support 101, further comprising a box 102 arranged on the support 101, and a box door 103 arranged on the box 102;

[0033] The base fixing mechanism 200 comprises a horizontal plate assembly 201 arranged on the box 102, and a sleeve fixing assembly 202 arranged on the horizontal plate assembly 201. The horizontal plate assembly 201 is fixedly installed on the inner wall of the box 102, and is arranged in a vertical array with respect to the inner wall of the box 102. The sleeve fixing assembly 202 is welded on one side of the horizontal plate assembly 201, and is arranged in a linear array with respect to the horizontal plate assembly 201.

[0034] The electrical component mounting mechanism 300 comprises a plug-in assembly 301 plugged into the sleeve fixing assembly 202, a slide rail mounting assembly 302 arranged on the plug-in assembly 301, and a reset assembly 303 arranged on the slide rail mounting assembly 302. The slide rail mounting assembly 302 is fixedly installed on one side of the plug-in assembly 301. The reset assembly 303 is used for resetting the plug-in assembly 301, so that the plug-in assembly 301 can be accurately clamped and fixed with the sleeve fixing assembly 202 when being inserted.

[0035] The electrical component mounting mechanism 300 is plugged and fixed to the base fixing mechanism 200. The plug-in assembly 301 can be disassembled by increasing the insertion process, so that the faulty electrical component can be easily removed and replaced.

[0036] Specifically, the horizontal plate assembly 201 comprises a horizontal plate 201a arranged on the box 102, and a fixing through hole 201b formed in the horizontal plate 201a. In this embodiment, the fixing through hole 201b is formed in multiple groups and is distributed at the edge of the horizontal plate 201a, for stably installing the horizontal plate 201a.

[0037] Further, the sleeve fixing assembly 202 comprises a sleeve piece 202a arranged on the horizontal plate 201a, and an elastic clamping piece 202b arranged on the sleeve piece 202a. In this embodiment, the sleeve piece 202a is welded on one side of the horizontal plate 201a, and is arranged in a linear array on one side of the horizontal plate 201a. The elastic clamping piece 202b is arranged on the inner wall of the sleeve piece 202a, and is symmetrically arranged with respect to the inner wall of the sleeve piece 202a. The plug-in assembly 301 is clamped and fixed by the elastic clamping piece 202b.

[0038] The sleeve joint 202a comprises a plug-in seat 202a-1 arranged on the horizontal plate 201a, a plug-in slot 202a-2 arranged on the plug-in seat 202a-1, a limiting slot 202a-3 arranged on the plug-in slot 202a-2, and a guide block 202a-4 arranged on the plug-in slot 202a-2. In the embodiment, the plug-in seat 202a-1 is welded on one side of the horizontal plate 201a, and the plug-in seat 202a-1 is linearly arranged on one side of the horizontal plate 201a. The plug-in slot 202a-2 is arranged on one end of the plug-in seat 202a-1 away from the horizontal plate 201a. The plug-in slot 202a-2 is matched with the plug-in assembly 301. The limiting slot 202a-3 is arranged on the inner wall of the plug-in slot 202a-2. The limiting slot 202a-3 is symmetrically arranged on the inner wall of the plug-in slot 202a-2. The elastic clamping piece 202b is arranged in the limiting slot 202a-3. One end of the elastic clamping piece 202b extends into the plug-in slot 202a-2 from the limiting slot 202a-3. The guide block 202a-4 is welded on the inner wall of the plug-in slot 202a-2.

[0039] Preferably, the elastic clamping piece 202b comprises a compression spring 202b-1 arranged in the limiting slot 202a-3, and a compression block 202b-2 arranged on one end of the compression spring 202b-1. The compression block 202b-2 is provided with a first inclined chamfer 202b-3. In the embodiment, the compression spring 202b-1 is arranged in the limiting slot 202a-3. One end of the compression spring 202b-1 is fixedly connected with the inner wall of the limiting slot 202a-3. The compression block 202b-2 is movably arranged in the limiting slot 202a-3. One end of the compression block 202b-2 is welded with one end of the compression spring 202b-1. One end of the compression block 202b-2 away from the compression spring 202b-1 extends into the plug-in slot 202a-2 from the limiting slot 202a-3. The first inclined chamfer 202b-3 is arranged on one end of the compression block 202b-2 extending into the plug-in slot 202a-2 from the limiting slot 202a-3. When the plug-in assembly 301 is plugged and fixed, the first inclined chamfer 202b-3 facilitates the compression block 202b-2 to be pushed into the limiting slot 202a-3.

[0040] It should be noted that the plug-in assembly 301 includes a plug-in column 301a matched with the plug-in slot 202a-2, further includes a fixed clamping groove 301b, a driving groove 301c, an exit groove 301d and a reset clamping groove 301e opened on the plug-in column 301a, and a rotating cavity 301f opened at one end of the plug-in column 301a. In the embodiment, the plug-in column 301a is matched with the plug-in slot 202a-2, and the fixed clamping groove 301b is opened on the circumferential outer wall of the plug-in column 301a, and the fixed clamping groove 301b is symmetrically opened about the circumferential outer wall of the plug-in column 301a. The fixed clamping groove 301b is matched and clamped with the extrusion block 202b-2. The driving groove 301c and the exit groove 301d are both opened on the plug-in end of the side wall of the plug-in column 301a. The driving groove 301c is slidably matched with the guide block 202a-4. The exit groove 301d is slidably matched with the extrusion block 202b-2. The reset clamping groove 301e is opened on the side wall of one end of the plug-in column 301a away from the opening end of the driving groove 301c. The reset clamping groove 301e is symmetrically opened about the circumferential outer wall of the plug-in column 301a, and is matched and clamped with the reset assembly 303 for positioning.

[0041] The driving groove 301c includes an entering section 301c-1, a driving section 301c-2 and an exiting section 301c-3. The reset clamping groove 301e is provided with a second inclined chamfer 301e-1. In the embodiment, the driving groove 301c is arranged in a U shape. The length of the entering section 301c-1 is less than that of the exiting section 301c-3. The entering section 301c-1 and the exiting section 301c-3 are communicated through the driving section 301c-2. The driving section 301c-2 is arranged in an inclined manner. When the electrical component mounting mechanism 300 is fixedly plugged with the base fixing mechanism 200, the guide block 202a-4 is located at the entering section 301c-1. By pushing the electrical component mounting mechanism 300 into the plug-in slot 202a-2, the plug-in column 301a is increased in process, so that the extrusion block 202b-2 is extruded and shrunk into the limiting groove 202a-3. When the plug-in column 301a is increased in process so that the guide block 202a-4 is located at the intersection of the entering section 301c-1 and the driving section 301c-2, the plug-in column 301a is continuously increased in insertion process at this time. The guide block 202a-4 passes through the driving section 301c-2 arranged in an inclined manner, so that the plug-in column 301a is rotated. The rotation of the plug-in column 301a causes the exit groove 301d to rotate. When the guide block 202a-4 moves to the intersection of the driving section 301c-2 and the exiting section 301c-3, the extrusion block 202b-2 is pushed into the exit groove 301d by the extrusion spring 202b-1. The electrical component mounting mechanism 300 can be easily disassembled by simple pressing, which greatly improves the work efficiency of circuit maintenance. The second inclined chamfer 301e-1 is arranged to facilitate the rotation of the plug-in column 301a, so that the positioning rod 303b-2 is separated from the reset clamping groove 301e.

[0042] Further, the slide rail mounting assembly 302 comprises a support rod 302a rotatably mounted in the rotating cavity 301f, and further comprises a fixing plate 302b arranged at the other end of the support rod 302a, and a slide rail groove 302c formed on the fixing plate 302b. In the embodiment, one end of the support rod 302a is welded to the center of one side of the fixing plate 302b, and the other end of the support rod 302a is rotatably connected with the inner wall of the rotating cavity 301f of the insertion column 301a. The slide rail groove 302c is formed on the side of the fixing plate 302b away from the support rod 302a, and rubber points are arranged on the inner wall of the slide rail groove 302c. The rubber points increase the friction between the electrical component and the fixing plate 302b, so that the electrical component is firmly mounted. The rubber points are linearly arranged on the side wall of the slide rail groove 302c. The rubber points arranged intermittently avoid affecting the manual installation of the electrical component.

[0043] In use, the electrical component is first slidably mounted in the slide rail groove 302c of the fixing plate 302b, and then the insertion column 301a on the other side of the fixing plate 302b is inserted into the insertion groove 202a-2 of the insertion seat 202a-1. The insertion column 301a is matched with the fixed clamping groove 301b through the matching of the extrusion block 202b-2, so as to achieve clamping matching. When disassembling and repairing, the electrical component mounting mechanism 300 is pushed into the insertion groove 202a-2 to increase the process of the insertion column 301a. When the insertion column 301a increases the process to the point that the guide block 202a-4 is located at the intersection of the entering section 301c-1 and the driving section 301c-2, the extrusion block 202b-2 is extruded into the limiting groove 202a-3 by the side wall of the insertion column 301a. The insertion column 301a is continuously inserted into the insertion groove 202a-2. The guide block 202a-4 is arranged at an inclination, so that the insertion column 301a is rotated. The rotation of the insertion column 301a makes the exit groove 301d rotate. When the guide block 202a-4 moves to the intersection of the driving section 301c-2 and the exit section 301c-3, the extrusion block 202b-2 is pushed into the exit groove 301d by the extrusion spring 202b-1, and then the electrical component mounting mechanism 300 can be pulled out and removed.

[0044] In summary, the electrical component mounting mechanism 300 can be quickly installed and disassembled by simple pressing, which greatly improves the work efficiency of circuit maintenance.

[0045] Embodiment 2, refer to Figures 1 to 5For the second embodiment of the present application, unlike the previous embodiment, the embodiment provides a reset assembly 303 of the main transformer forced oil circulation water cooler control box, solves the problem that the rotating plug-in column 301a needs to be manually adjusted in angle before being inserted, so that the fixed clamping groove 301b matches the extrusion block 202b-2, which comprises a reset assembly 303 comprising a No. 1 torsion spring 303a sleeved on the supporting rod 302a, and a positioning piece 303b arranged on the fixed plate 302b. In the embodiment, the No. 1 torsion spring 303a is sleeved outside the supporting rod 302a, one end of the No. 1 torsion spring 303a is welded with the inner wall of the rotating cavity 301f, and the other end of the No. 1 torsion spring 303a is welded with the fixed plate 302b. The positioning piece 303b is arranged on the outer circle of the plug-in column 301a, and the positioning piece 303b matches the reset clamping groove 301e on the plug-in column 301a. The positioning piece 303b is provided with two groups. After the plug-in column 301a is separated from the plug-in slot 202a-2, the torsion of the No. 1 torsion spring 303a drives the plug-in column 301a to rotate for resetting.

[0046] Specifically, the positioning piece 303b comprises a rotating shaft 303b-1 arranged on the fixed plate 302b, and a positioning rod 303b-2 rotatably installed on the rotating shaft 303b-1. A rotating shaft slot 303b-3 is arranged on the positioning rod 303b-2, and a No. 2 torsion spring 303b-4 is arranged in the rotating shaft slot 303b-3. In the embodiment, the rotating shaft 303b-1 is welded to the side wall of the fixed plate 302b, the rotating shaft slot 303b-3 is arranged at one end of the positioning rod 303b-2, the No. 2 torsion spring 303b-4 is sleeved outside the positioning rod 303b-2, one end of the No. 2 torsion spring 303b-4 is welded with the fixed plate 302b, and the other end of the No. 2 torsion spring 303b-4 is welded with the inner wall of the rotating shaft slot 303b-3. The arrangement of the No. 2 torsion spring 303b-4 makes the positioning rod 303b-2 still closely adhere to the outer wall of the plug-in column 301a after being separated from the reset clamping groove 301e, so that the positioning rod 303b-2 can be directly clamped into the reset clamping groove 301e when the plug-in column 301a is rotated for resetting by the No. 1 torsion spring 303a.

[0047] The remaining structures are the same as those of the first embodiment.

[0048] In use, there is no need to adjust the angle of the plug-in column 301a. The fixed plate 302b is placed vertically, and then the plug-in column 301a is directly inserted into the plug-in slot 202a-2. When overhauled, the plug-in column 301a is pressed out, the exit groove 301d of the plug-in column 301a is separated from the extrusion block 202b-2, the torsion of the No. 1 torsion spring 303a drives the plug-in column 301a to rotate for resetting, so that the positioning rod 303b-2 is clamped into the reset clamping groove 301e, and the initial state of the plug-in assembly 301 is restored, so as to facilitate the installation and insertion next time.

[0049] Embodiment 3, refer to Figure 6For the third embodiment of the present application, unlike the previous embodiment, this embodiment provides an emergency control circuit, solves the problem of power transmission affected by the main transformer forced oil circulation water cooling control circuit failure, and comprises the main transformer forced oil circulation water cooler control box in the above-mentioned embodiment.

[0050] Specifically, it further comprises an emergency control circuit, which comprises a newly added AC380V emergency power supply, an emergency circuit switch added in the control box, the emergency power supply and the emergency circuit switch are electrically connected, the emergency circuit switch is electrically connected with the cooler water valve circuit and the oil pump circuit, in this embodiment, when the main control circuit fails, the emergency circuit switch is automatically opened, switched to the emergency control circuit, the cooler water valve is opened and the oil pump is started, so that the forced oil circulation water cooling runs normally, without the need to exit the operation of the main transformer, providing sufficient time to eliminate the cooler failure, effectively ensuring the safe operation of the main transformer without affecting power transmission.

[0051] When the main control circuit fails, the emergency circuit switch is automatically opened, switched to the emergency control circuit, the cooler water valve is opened and the oil pump is started, so that the forced oil circulation water cooling runs normally.

[0052] Importantly, it should be noted that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such variations are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed, or reordered, according to alternative embodiments. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described but extends to the scope of the appended claims.

[0053] Furthermore, in the interest of providing a concise description of illustrative embodiments, not all features of an actual implementation can be described (that is, not all

[0054] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0055] It should be noted that the above examples are merely used to illustrate the technical solutions of the present application, rather than limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A main transformer forced oil circulation water cooler control box characterized by: The utility model relates to a box frame (100) which comprises a support (101), a box (102) arranged on the support (101), and a box door (103) arranged on the box (102). The utility model relates to a base fixing mechanism (200) which comprises a horizontal plate assembly (201) arranged on the box (102), and a sleeve fixing assembly (202) arranged on the horizontal plate assembly (201). The utility model relates to an electrical component mounting mechanism (300) which comprises a plug-in assembly (301) plugged into the sleeve fixing assembly (202), a slide rail mounting assembly (302) arranged on the plug-in assembly (301), and a reset assembly (303) arranged on the slide rail mounting assembly (302). The electrical component mounting mechanism (300) is plugged and fixed to the base fixing mechanism (200), and can be disassembled by increasing the plug-in assembly (301) process, so that the faulty electrical component can be easily removed and replaced. The horizontal plate assembly (201) comprises a horizontal plate (201a) arranged on the box (102), and a fixing through hole (201b) formed in the horizontal plate (201a). The sleeve fixing assembly (202) comprises a sleeve piece (202a) arranged on the horizontal plate (201a), and an elastic clamping piece (202b) arranged on the sleeve piece (202a), wherein the sleeve piece (202a) is linearly arranged on one side of the horizontal plate (201a). The sleeve piece (202a) comprises a plug-in seat (202a-1) arranged on the horizontal plate (201a), a plug-in slot (202a-2) formed in the plug-in seat (202a-1), a limiting slot (202a-3) formed in the plug-in slot (202a-2), and a guide block (202a-4) arranged on the plug-in slot (202a-2). The elastic clamping piece (202b) comprises an extrusion spring (202b-1) arranged in the limiting slot (202a-3), and an extrusion block (202b-2) arranged at one end of the extrusion spring (202b-1), wherein the extrusion block (202b-2) is provided with a first bevel (202b-3). The plug-in assembly (301) comprises a plug-in column (301a) matched with the plug-in slot (202a-2), a fixing clamping groove (301b), a driving groove (301c), an exit groove (301d), and a reset clamping groove (301e) formed in the plug-in column (301a), and a rotating cavity (301f) formed at one end of the plug-in column (301a). The driving groove (301c) comprises an entry section (301c-1), a driving section (301c-2), and an exit section (301c-3), and the reset clamping groove (301e) is provided with a second bevel (301e-1). ​ The slide rail mounting assembly (302) comprises a supporting rod (302a) rotatably mounted in the rotating cavity (301f), a fixing plate (302b) arranged at the other end of the supporting rod (302a), and a slide rail groove (302c) formed on the fixing plate (302b); The reset assembly (303) comprises a first torsion spring (303a) sleeved on the supporting rod (302a), and a positioning member (303b) arranged on the fixing plate (302b); The positioning member (303b) comprises a rotating shaft (303b-1) arranged on the fixing plate (302b), and a positioning rod (303b-2) rotatably mounted on the rotating shaft (303b-1); The positioning rod (303b-2) is provided with a rotating shaft groove (303b-3), and the rotating shaft groove (303b-3) is provided with a second torsion spring (303b-4).

2. An emergency control circuit, characterized by: The control box of the main transformer forced oil circulation water cooler comprises the main transformer forced oil circulation water cooler of claim 1, The emergency control circuit further comprises an emergency power supply of AC380V, an emergency circuit switch is additionally arranged in the control box, the emergency power supply is electrically connected with the emergency circuit switch, and the emergency circuit switch is electrically connected with the cooler water valve circuit and the oil pump circuit.

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