Oil level early warning mechanism and transformer on-site vacuum oil injection device

Abstract

The utility model relates to the technical field of transformer monitoring, in particular to an oil level early warning mechanism and a transformer on-site vacuum oil injection device, the oil level early warning mechanism comprises a containing assembly, a mounting piece and a measuring piece arranged on the mounting piece; the early warning assembly comprises a driving part arranged on the mounting part, a reciprocating part arranged on the mounting part and a swinging part arranged on the mounting part, a floating plate is arranged, so that the floating plate floats on the oil surface, the Z-shaped rod is driven to rotate along with descending of the oil surface, the position of the oil surface is obtained by reading the position of the pointer pointing on the dial, the cost is low, the failure rate is small, and the working efficiency is high. When the oil level is out of the safety range, the driving piece is started to drive the reciprocating piece to shake the swing piece in a reciprocating mode, sound early warning is given out through the bell, and workers can conveniently and rapidly position the fault transformer so as to take measures in time.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer monitoring, in particular to an oil level warning mechanism and a transformer on-site vacuum oil injection device. Background Technique

[0002] A transformer is an indispensable device in the power system and various electrical equipment. Through its functions such as voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization, it provides an important guarantee for the normal operation of the power system and various equipment. During the use of the transformer, it is necessary to inject oil into the transformer to ensure the safe and stable operation of the transformer. Through its functions such as insulation, heat dissipation, arc extinguishing, noise reduction, and pressure balance, the performance and reliability of the transformer are improved.

[0003] The existing oil level measurement inside the transformer usually uses sensor technology to measure the oil level inside the transformer. However, its use cost is relatively high. If there is an error in the transmission system, the oil level measurement cannot be carried out. And when the oil level inside the transformer is lower or higher than the safe range, it may cause the transformer to malfunction due to failure to take timely measures, lacking a warning effect. And it is difficult for the staff to quickly locate and maintain the faulty transformer after receiving the warning signal. Also, when injecting oil into the transformer, if the vacuum degree inside the transformer is too low, the transformer will be damaged. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the problems of high cost, high failure rate, lack of warning effect, and difficulty in quickly locating and maintaining the sensor for measuring the oil level as described above, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide an oil level warning mechanism.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: An oil level warning mechanism includes a housing assembly, including a mounting member and a measuring member disposed on the mounting member; and a warning assembly, including a driving member disposed on the mounting member, a reciprocating member disposed on the mounting member, and a swinging member disposed on the mounting member.

[0008] As a preferred scheme of the oil level warning mechanism of the present utility model, wherein: the mounting member includes a transformer body, a heat sink disposed on one side of the transformer body, and a fixing frame disposed on the side of the transformer body.

[0009] As a preferred solution of the oil level warning mechanism described in the present utility model, wherein: the measuring member includes an oil tank disposed inside the transformer body, a Z-shaped rod disposed on the transformer body, a floating plate disposed on the Z-shaped rod, a pointer disposed on the Z-shaped rod, and a scale disk disposed on the transformer body.

[0010] As a preferred solution of the oil level warning mechanism described in the present utility model, wherein: the floating plate is disposed at one end of the Z-shaped rod inside the oil tank, and the pointer is disposed at one end of the Z-shaped rod outside the transformer body.

[0011] As a preferred solution of the oil level warning mechanism described in the present utility model, wherein: the driving member includes a switch disposed on the transformer body, a motor disposed on the fixing frame, a circular disk disposed at the output end of the motor, and a bump disposed on the circular disk.

[0012] As a preferred solution of the oil level warning mechanism described in the present utility model, wherein: the reciprocating member includes a T-shaped rod disposed on the fixing frame, a notch formed in the T-shaped rod, and a fixing plate disposed on the fixing frame.

[0013] As a preferred solution of the oil level warning mechanism described in the present utility model, wherein: the swaying member includes a bell disposed on the transformer body, a swing rope disposed inside the bell, and an iron lead ball disposed on the swing rope.

[0014] The beneficial effects of the oil level warning mechanism described in the present utility model: By setting the floating plate, it floats on the oil surface. As the oil surface drops, it drives the Z-shaped rod to rotate. Reading the position where the pointer points on the scale disk can obtain the oil surface position. It has low cost and low failure rate. When the oil level is out of the safe range, the driving member is started to drive the reciprocating member to reciprocate and sway the swaying member, and a warning sound is emitted through the bell, which is convenient for the staff to quickly locate the faulty transformer so as to take measures in time.

[0015] In view of the fact that during the actual use process, there is also a problem that too low vacuum degree inside the transformer may damage the transformer.

[0016] To solve the above technical problems, the present utility model also provides the following technical solution: A on-site vacuum oil injection device for a transformer includes the above-mentioned oil level warning mechanism, and further includes an oil injection assembly, which includes an extraction member disposed on the mounting member and a connecting member disposed on the mounting member.

[0017] As a preferred solution of the transformer on-site vacuum oil filling device of the utility model, the extraction member includes an exhaust pipe arranged on the mounting member, and a vacuum pump arranged on the mounting member.

[0018] As a preferred solution of the transformer on-site vacuum oil filling device of the utility model, the connecting member includes a placement plate arranged on the mounting member, an oil filling port opened on the placement plate, a rotating plate arranged on the placement plate, a circular hole opened on the rotating plate, a telescopic rod arranged on the rotating plate, and an electric push rod arranged on the telescopic rod.

[0019] The transformer on-site vacuum oil filling device of the utility model has the following beneficial effects: the utility model extracts the air in the oil tank by arranging a vacuum pump to form a vacuum state inside the oil tank, and then utilizes the pressure difference under the vacuum state to inject insulating oil into the oil tank through the oil filling pipe. When the vacuum level in the oil tank is too low, the oil filling is stopped in time to avoid damage to the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is an overall schematic diagram of the oil level warning mechanism and transformer on-site vacuum oil filling device of the utility model.

[0022] Figure 2 It is an overall schematic diagram of the measuring component of the oil level warning mechanism of the utility model.

[0023] Figure 3 It is an overall schematic diagram of the warning component of the oil level warning mechanism of the utility model.

[0024] Figure 4 for Figure 3 Enlarged view of point A in .

[0025] Figure 5 It is an overall schematic diagram of the extraction component of the transformer on-site vacuum oil filling device of the utility model.

[0026] Figure 6 It is an overall schematic diagram of the oil filling assembly of the transformer on-site vacuum oil filling device of the utility model.

[0027] Figure 7 for Figure 6 Enlarged view of point B in . DETAILED DESCRIPTION

[0028] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0029] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an independent or selectively mutually exclusive embodiment with other embodiments.

[0031] Embodiment 1

[0032] Referring to Figures 1-7 , this is the first embodiment of the present utility model. This embodiment provides an oil level warning mechanism, which includes a housing assembly 100, including a mounting member 101 for accommodating a measuring member 102, and a measuring member 102 disposed on the mounting member 101 for measuring the oil level inside the transformer. And a warning assembly 200, including a driving member 201 disposed on the mounting member 101 to provide driving force for a reciprocating member 202, a reciprocating member 202 disposed on the mounting member 101 that is driven by the driving member 201 to perform reciprocating up and down movement, and a swinging member 203 disposed on the mounting member 101 that is driven by the reciprocating member 202 to ring a bell for warning.

[0033] Specifically, the mounting member 101 includes a transformer body 101a, heat sinks 101b fixedly connected to one side of the transformer body 101a, and a fixing bracket 101c fixedly connected to the side of the transformer body 101a. The transformer body 101a serves as a housing, and there are two heat sinks 101b arranged symmetrically to play a heat dissipation role. The fixing bracket 101c is used to place the warning assembly 200.

[0034] Furthermore, the measuring member 102 includes an oil tank 102a disposed in the transformer body 101a, a Z-shaped rod 102b rotatably connected to the transformer body 101a, a floating plate 102c rotatably connected to one end of the Z-shaped rod 102b in the oil tank 102a, a pointer 102d fixedly connected to the Z-shaped rod 102b on one side outside the transformer body 101a, and a dial 102e disposed on the transformer. The floating plate 102c floats on the surface of the insulating oil in the oil tank 102a. As the oil level drives the Z-shaped rod 102b to rotate on the transformer body 101a, the pointer 102d rotates accordingly, and the dial 102e is scaled according to the oil level.

[0035] Operation process: When the insulating oil level of the oil tank 102a inside the transformer body 101a changes, the floating plate 102c floating on the oil surface changes with the position of the oil surface. When the floating plate 102c changes its up and down position, it drives the Z-shaped rod 102b to rotate and connect to the transformer body 101a. The pointer 102d fixedly connected to the side of the other end of the Z-shaped rod 102b rotates accordingly and points to the dial 102e. The oil level of the insulating oil in the oil tank 102a can be read, which has low cost and low failure rate.

[0036] Example 2

[0037] Reference Figures 3-4 , which is the second embodiment of the utility model, is different from the previous embodiment in that: the driving member 201 includes a switch 201a fixedly connected to the transformer body 101a, a motor 201b fixedly connected to the fixing frame 101c, a circular disk 201c fixedly connected to the output end of the motor 201b, and a protrusion 201d fixedly connected to the circular disk 201c. The switch 201a is triggered by the toggle of the pointer 102d, and the motor 201b is started under the control of the switch 201a. As the motor 201b is started, the circular disk 201c drives the protrusion 201d fixedly connected thereto to rotate.

[0038] Specifically, the reciprocating member 202 includes a T-shaped rod 202a arranged on the fixed frame 101c, a slot 202b opened on the T-shaped rod 202a, and a fixed plate 202c fixedly connected to the fixed frame 101c. The T-shaped rod 202a and the fixed plate 202c are slidably connected, and the fixed plate 202c provides guidance for the T-shaped rod 202a. The protrusion 201d is slidably connected in the slot 202b, and the size of the protrusion 201d is adapted to the size of the opening of the slot 202b.

[0039] Further, the swinging member 203 includes a bell 203a fixedly connected to one side of the transformer body 101a, a swinging rope 203b disposed inside the bell 203a, an iron-lead ball 203c fixedly connected to the swinging rope 203b, and a signal transmitter 203d fixedly connected to one side of the transformer body 101a. One end of the swinging rope 203b is fixedly connected to the transformer body 101a, and the other end is fixedly connected to the end of the T-shaped rod 202a. The iron-lead ball 203c strikes the bell 203a to emit a sound, and the signal transmitter 203d emits a signal due to the triggering of the switch 201a.

[0040] The remaining structures are the same as those in Embodiment 1.

[0041] Operation process: When the insulating oil level inside the fuel tank 102a deviates from the safe range, the floating plate 102c drives the Z-shaped rod 102b to rotate. The pointer 102d fixedly connected to the Z-shaped rod 102b toggles the switch 201a. The signal transmitter 203d controlled by the switch 201a sends an alarm message to the operator and activates the power supply. The motor 201b is then started. The circular disk 201c fixedly connected to the output end of the motor 201b rotates and drives the convex block 201d fixedly connected to the circular disk 201c to rotate. Since the convex block 201d is slidably connected to the notch 202b formed in the T-shaped rod 202a, the T-shaped rod 202a reciprocates up and down on the fixing plate 202c fixedly connected to the fixing frame 101c as the convex block 201d rotates. Since one end of the swinging rope 203b is fixedly connected to the transformer body 101a and the other end is fixedly connected to the end of the T-shaped rod 202a, the swinging rope 203b swings up and down as the T-shaped rod 202a reciprocates up and down, driving the iron-lead ball 203c fixedly connected to the swinging rope 203b to strike the inner sidewall of the bell 203a, emitting a sound warning, facilitating the staff to quickly locate the faulty transformer so as to take measures in time.

[0042] Embodiment 3

[0043] Referring to Figures 5-7 , this is the third embodiment of the present invention. Different from the above embodiments, this embodiment provides a transformer on-site vacuum oil injection device, which includes the above oil level warning mechanism, and further includes,

[0044] The oil injection assembly 300 includes an extraction member 301 disposed on the mounting member 101 to extract the air inside the fuel tank 102a to keep the inside of the fuel tank 102a in a vacuum state, and a connection member 302 disposed on the mounting member 101 to stop the oil injection work in time.

[0045] Specifically, the extraction member 301 includes an exhaust pipe 301a fixedly connected to the mounting member 101, and a vacuum pump 301b fixedly connected to the mounting member 101. The exhaust pipe 301a is used to transport the extracted gas in the oil tank 102a. The output end of the vacuum pump 301b is fixedly connected to the exhaust pipe port. When working, the gas in the oil tank 102a is extracted through the exhaust pipe 301a.

[0046] Further, the connecting member 302 includes a placing plate 302a fixedly connected to one side of the mounting member 101, an oil filling port 302b provided on the placing plate 302a, a rotating plate 302c rotatably connected to the placing plate 302a, a circular hole 302d provided on the rotating plate 302c, a telescopic rod 302e fixedly connected to the rotating plate 302c, an output end of an electric push rod 302f rotatably connected to the telescopic rod 302e, and a detection sensor 302 fixedly connected to one side of the mounting member 101. g, the placement plate 302a is used to connect with the transformer, and the insulating oil is transported to the oil tank 102a through the oil filling port 302b. The circular hole 302d opened on the rotating plate 302c corresponds to the size of the oil filling port 302b. The rotation of the telescopic rod 302e drives the rotating plate 302c to rotate. The electric push rod 302f is fixedly connected with the detection sensor 302g. The output end of the electric push rod 302f moves due to the triggering of the detection sensor 302g, and the detection sensor 302g can detect the vacuum degree inside the oil tank 102a.

[0047] The rest of the structure is the same as that of Example 2.

[0048] Operation process: when the transformer needs to be filled with oil, when the vacuum pump 301b is started, the air in the oil tank 102a is extracted through the exhaust pipe 301a, so that a vacuum state is formed inside the oil tank 102a, and then the insulating oil is injected into the oil tank 102a through the oil filling pipe connected to the oil filling port 302b by utilizing the pressure difference under the vacuum state. When the detection sensor 302g detects that the vacuum degree inside the oil tank 102a is too low, the detection sensor 302g is started, driving the output end of the electric push rod 302f fixed thereon to move. Since the output end of the electric push rod 302f is connected to the telescopic rod 302e, the telescopic rod 302e rotates, and the telescopic rod 302e is fixedly connected to the rotating disk 302c, and the rotating disk 302c rotates and is connected to the placing disk 302a. The circular hole 302d opened on the rotating disk 302c no longer corresponds to the oil filling port 302b, and the rotating disk 302c blocks the oil filling port 302b, and the oil filling work is stopped to avoid damage to the transformer.

[0049] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clauses are intended to cover the structures that perform the recited functions described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0050] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0051] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacture and production.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered within the scope of the claims of the present utility model.

Claims

1. An oil level warning mechanism, characterized in that: include, A containing assembly (100) comprising a mounting member (101) and a measuring member (102) arranged on the mounting member (101); and, An early warning component (200) comprises a driving member (201) arranged on the mounting member (101), a reciprocating member (202) arranged on the mounting member (101), and a swinging member (203) arranged on the mounting member (101); The mounting member (101) comprises a transformer body (101a), a heat sink (101b) arranged on one side of the transformer body (101a), and a fixing frame (101c) arranged on the side of the transformer body (101a); The measuring member (102) comprises an oil tank (102a) arranged in the transformer body (101a), a Z-shaped rod (102b) arranged on the transformer body (101a), a floating plate (102c) arranged on the Z-shaped rod (102b), a pointer (102d) arranged on the Z-shaped rod (102b), and a dial (102e) arranged on the transformer body (101a).

2. The oil level warning mechanism according to claim 1, characterized in that: The floating plate (102c) is arranged on one end of the Z-shaped rod (102b) located inside the oil tank (102a), and the pointer (102d) is arranged on one end of the Z-shaped rod (102b) located outside the transformer body (101a).

3. The oil level warning mechanism according to claim 2, characterized in that: The driving member (201) comprises a switch (201a) arranged on the transformer body (101a), a motor (201b) arranged on the fixing frame (101c), a circular disk (201c) arranged on the output end of the motor (201b), and a protrusion (201d) arranged on the circular disk (201c).

4. The oil level warning mechanism according to claim 3, characterized in that: The reciprocating member (202) comprises a T-shaped rod (202a) arranged on the fixing frame (101c), a notch (202b) opened on the T-shaped rod (202a), and a fixing plate (202c) arranged on the fixing frame (101c).

5. The oil level warning mechanism according to claim 4, characterized in that: The swing member (203) comprises a bell (203a) arranged on the transformer body (101a), a swing rope (203b) arranged in the bell (203a), and an iron lead ball (203c) arranged on the swing rope (203b).

6. A transformer on-site vacuum oil filling device, characterized in that: The oil level warning mechanism comprises any one of claims 1 to 5, and further comprises: The oil injection assembly (300) comprises an extraction member (301) arranged on the mounting member (101), and a connection member (302) arranged on the mounting member (101).

7. The transformer on-site vacuum oil filling device according to claim 6, characterized in that: The extraction member (301) comprises an air extraction pipe (301a) arranged on the mounting member (101), and a vacuum pump (301b) arranged on the mounting member (101).

8. The transformer on-site vacuum oil filling device according to claim 7, characterized in that: The connecting member (302) comprises a placement plate (302a) arranged on the mounting member (101), an oil filling port (302b) opened on the placement plate (302a), a rotating plate (302c) arranged on the placement plate (302a), a circular hole (302d) opened on the rotating plate (302c), a telescopic rod (302e) arranged on the rotating plate (302c), and an electric push rod (302f) arranged on the telescopic rod (302e).

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